diff --git a/ci/.editorconfig b/ci/.editorconfig new file mode 100644 index 0000000..39f48d9 --- /dev/null +++ b/ci/.editorconfig @@ -0,0 +1,15 @@ +# top-most EditorConfig file +root = true + +# Unix-style newlines with a newline ending every file +[*] +end_of_line = lf +insert_final_newline = true + +# Matches multiple files with brace expansion notation +# Set default charset +[*] +charset = utf-8 + +# Tab indentation (no size specified) +indent_style = tab diff --git a/ci/.gitignore b/ci/.gitignore new file mode 100644 index 0000000..323f064 --- /dev/null +++ b/ci/.gitignore @@ -0,0 +1,32 @@ +.DS_Store + +application/cache/* +!application/cache/index.html + +application/logs/* +!application/logs/index.html + +!application/*/.htaccess + +composer.lock +tests/mocks/database/ci_test.sqlite + +user_guide_src/build/* +user_guide_src/cilexer/build/* +user_guide_src/cilexer/dist/* +user_guide_src/cilexer/pycilexer.egg-info/* +/vendor/ + +# IDE Files +#------------------------- +/nbproject/ +.idea/* + +## Sublime Text cache files +*.tmlanguage.cache +*.tmPreferences.cache +*.stTheme.cache +*.sublime-workspace +*.sublime-project +/tests/tests/ +/tests/results/ diff --git a/ci/application/.htaccess b/ci/application/.htaccess new file mode 100644 index 0000000..6c63ed4 --- /dev/null +++ b/ci/application/.htaccess @@ -0,0 +1,6 @@ + + Require all denied + + + Deny from all + \ No newline at end of file diff --git a/ci/application/cache/index.html b/ci/application/cache/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/application/cache/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/application/config/autoload.php b/ci/application/config/autoload.php new file mode 100644 index 0000000..47a3ba2 --- /dev/null +++ b/ci/application/config/autoload.php @@ -0,0 +1,135 @@ + 'ua'); +*/ +$autoload['libraries'] = array(); + +/* +| ------------------------------------------------------------------- +| Auto-load Drivers +| ------------------------------------------------------------------- +| These classes are located in system/libraries/ or in your +| application/libraries/ directory, but are also placed inside their +| own subdirectory and they extend the CI_Driver_Library class. They +| offer multiple interchangeable driver options. +| +| Prototype: +| +| $autoload['drivers'] = array('cache'); +| +| You can also supply an alternative property name to be assigned in +| the controller: +| +| $autoload['drivers'] = array('cache' => 'cch'); +| +*/ +$autoload['drivers'] = array(); + +/* +| ------------------------------------------------------------------- +| Auto-load Helper Files +| ------------------------------------------------------------------- +| Prototype: +| +| $autoload['helper'] = array('url', 'file'); +*/ +$autoload['helper'] = array('url'); + +/* +| ------------------------------------------------------------------- +| Auto-load Config files +| ------------------------------------------------------------------- +| Prototype: +| +| $autoload['config'] = array('config1', 'config2'); +| +| NOTE: This item is intended for use ONLY if you have created custom +| config files. Otherwise, leave it blank. +| +*/ +$autoload['config'] = array(); + +/* +| ------------------------------------------------------------------- +| Auto-load Language files +| ------------------------------------------------------------------- +| Prototype: +| +| $autoload['language'] = array('lang1', 'lang2'); +| +| NOTE: Do not include the "_lang" part of your file. For example +| "codeigniter_lang.php" would be referenced as array('codeigniter'); +| +*/ +$autoload['language'] = array(); + +/* +| ------------------------------------------------------------------- +| Auto-load Models +| ------------------------------------------------------------------- +| Prototype: +| +| $autoload['model'] = array('first_model', 'second_model'); +| +| You can also supply an alternative model name to be assigned +| in the controller: +| +| $autoload['model'] = array('first_model' => 'first'); +*/ +$autoload['model'] = array(); diff --git a/ci/application/config/config.php b/ci/application/config/config.php new file mode 100644 index 0000000..e901ca5 --- /dev/null +++ b/ci/application/config/config.php @@ -0,0 +1,532 @@ +]+$/i +| +| DO NOT CHANGE THIS UNLESS YOU FULLY UNDERSTAND THE REPERCUSSIONS!! +| +*/ +$config['permitted_uri_chars'] = 'a-z 0-9~%.:_\-'; + +/* +|-------------------------------------------------------------------------- +| Enable Query Strings +|-------------------------------------------------------------------------- +| +| By default CodeIgniter uses search-engine friendly segment based URLs: +| example.com/who/what/where/ +| +| You can optionally enable standard query string based URLs: +| example.com?who=me&what=something&where=here +| +| Options are: TRUE or FALSE (boolean) +| +| The other items let you set the query string 'words' that will +| invoke your controllers and its functions: +| example.com/index.php?c=controller&m=function +| +| Please note that some of the helpers won't work as expected when +| this feature is enabled, since CodeIgniter is designed primarily to +| use segment based URLs. +| +*/ +$config['enable_query_strings'] = FALSE; +$config['controller_trigger'] = 'c'; +$config['function_trigger'] = 'm'; +$config['directory_trigger'] = 'd'; + +/* +|-------------------------------------------------------------------------- +| Allow $_GET array +|-------------------------------------------------------------------------- +| +| By default CodeIgniter enables access to the $_GET array. If for some +| reason you would like to disable it, set 'allow_get_array' to FALSE. +| +| WARNING: This feature is DEPRECATED and currently available only +| for backwards compatibility purposes! +| +*/ +$config['allow_get_array'] = TRUE; + +/* +|-------------------------------------------------------------------------- +| Error Logging Threshold +|-------------------------------------------------------------------------- +| +| You can enable error logging by setting a threshold over zero. The +| threshold determines what gets logged. Threshold options are: +| +| 0 = Disables logging, Error logging TURNED OFF +| 1 = Error Messages (including PHP errors) +| 2 = Debug Messages +| 3 = Informational Messages +| 4 = All Messages +| +| You can also pass an array with threshold levels to show individual error types +| +| array(2) = Debug Messages, without Error Messages +| +| For a live site you'll usually only enable Errors (1) to be logged otherwise +| your log files will fill up very fast. +| +*/ +$config['log_threshold'] = 0; + +/* +|-------------------------------------------------------------------------- +| Error Logging Directory Path +|-------------------------------------------------------------------------- +| +| Leave this BLANK unless you would like to set something other than the default +| application/logs/ directory. Use a full server path with trailing slash. +| +*/ +$config['log_path'] = ''; + +/* +|-------------------------------------------------------------------------- +| Log File Extension +|-------------------------------------------------------------------------- +| +| The default filename extension for log files. The default 'php' allows for +| protecting the log files via basic scripting, when they are to be stored +| under a publicly accessible directory. +| +| Note: Leaving it blank will default to 'php'. +| +*/ +$config['log_file_extension'] = ''; + +/* +|-------------------------------------------------------------------------- +| Log File Permissions +|-------------------------------------------------------------------------- +| +| The file system permissions to be applied on newly created log files. +| +| IMPORTANT: This MUST be an integer (no quotes) and you MUST use octal +| integer notation (i.e. 0700, 0644, etc.) +*/ +$config['log_file_permissions'] = 0644; + +/* +|-------------------------------------------------------------------------- +| Date Format for Logs +|-------------------------------------------------------------------------- +| +| Each item that is logged has an associated date. You can use PHP date +| codes to set your own date formatting +| +*/ +$config['log_date_format'] = 'Y-m-d H:i:s'; + +/* +|-------------------------------------------------------------------------- +| Error Views Directory Path +|-------------------------------------------------------------------------- +| +| Leave this BLANK unless you would like to set something other than the default +| application/views/errors/ directory. Use a full server path with trailing slash. +| +*/ +$config['error_views_path'] = ''; + +/* +|-------------------------------------------------------------------------- +| Cache Directory Path +|-------------------------------------------------------------------------- +| +| Leave this BLANK unless you would like to set something other than the default +| application/cache/ directory. Use a full server path with trailing slash. +| +*/ +$config['cache_path'] = ''; + +/* +|-------------------------------------------------------------------------- +| Cache Include Query String +|-------------------------------------------------------------------------- +| +| Whether to take the URL query string into consideration when generating +| output cache files. Valid options are: +| +| FALSE = Disabled +| TRUE = Enabled, take all query parameters into account. +| Please be aware that this may result in numerous cache +| files generated for the same page over and over again. +| array('q') = Enabled, but only take into account the specified list +| of query parameters. +| +*/ +$config['cache_query_string'] = FALSE; + +/* +|-------------------------------------------------------------------------- +| Encryption Key +|-------------------------------------------------------------------------- +| +| If you use the Encryption class, you must set an encryption key. +| See the user guide for more info. +| +| https://codeigniter.com/userguide3/libraries/encryption.html +| +*/ +$config['encryption_key'] = ''; + +/* +|-------------------------------------------------------------------------- +| Session Variables +|-------------------------------------------------------------------------- +| +| 'sess_driver' +| +| The storage driver to use: files, database, redis, memcached +| +| 'sess_cookie_name' +| +| The session cookie name, must contain only [0-9a-z_-] characters +| +| 'sess_samesite' +| +| Session cookie SameSite attribute: Lax (default), Strict or None +| +| 'sess_expiration' +| +| The number of SECONDS you want the session to last. +| Setting to 0 (zero) means expire when the browser is closed. +| +| 'sess_save_path' +| +| The location to save sessions to, driver dependent. +| +| For the 'files' driver, it's a path to a writable directory. +| WARNING: Only absolute paths are supported! +| +| For the 'database' driver, it's a table name. +| Please read up the manual for the format with other session drivers. +| +| IMPORTANT: You are REQUIRED to set a valid save path! +| +| 'sess_match_ip' +| +| Whether to match the user's IP address when reading the session data. +| +| WARNING: If you're using the database driver, don't forget to update +| your session table's PRIMARY KEY when changing this setting. +| +| 'sess_time_to_update' +| +| How many seconds between CI regenerating the session ID. +| +| 'sess_regenerate_destroy' +| +| Whether to destroy session data associated with the old session ID +| when auto-regenerating the session ID. When set to FALSE, the data +| will be later deleted by the garbage collector. +| +| Other session cookie settings are shared with the rest of the application, +| except for 'cookie_prefix' and 'cookie_httponly', which are ignored here. +| +*/ +$config['sess_driver'] = 'files'; +$config['sess_cookie_name'] = 'ci_session'; +$config['sess_samesite'] = 'Lax'; +$config['sess_expiration'] = 7200; +$config['sess_save_path'] = NULL; +$config['sess_match_ip'] = FALSE; +$config['sess_time_to_update'] = 300; +$config['sess_regenerate_destroy'] = FALSE; + +/* +|-------------------------------------------------------------------------- +| Cookie Related Variables +|-------------------------------------------------------------------------- +| +| 'cookie_prefix' = Set a cookie name prefix if you need to avoid collisions +| 'cookie_domain' = Set to .your-domain.com for site-wide cookies +| 'cookie_path' = Typically will be a forward slash +| 'cookie_secure' = Cookie will only be set if a secure HTTPS connection exists. +| 'cookie_httponly' = Cookie will only be accessible via HTTP(S) (no javascript) +| 'cookie_samesite' = Cookie's samesite attribute (Lax, Strict or None) +| +| Note: These settings (with the exception of 'cookie_prefix' and +| 'cookie_httponly') will also affect sessions. +| +*/ +$config['cookie_prefix'] = ''; +$config['cookie_domain'] = ''; +$config['cookie_path'] = '/'; +$config['cookie_secure'] = FALSE; +$config['cookie_httponly'] = FALSE; +$config['cookie_samesite'] = 'Lax'; + +/* +|-------------------------------------------------------------------------- +| Standardize newlines +|-------------------------------------------------------------------------- +| +| Determines whether to standardize newline characters in input data, +| meaning to replace \r\n, \r, \n occurrences with the PHP_EOL value. +| +| WARNING: This feature is DEPRECATED and currently available only +| for backwards compatibility purposes! +| +*/ +$config['standardize_newlines'] = FALSE; + +/* +|-------------------------------------------------------------------------- +| Global XSS Filtering +|-------------------------------------------------------------------------- +| +| Determines whether the XSS filter is always active when GET, POST or +| COOKIE data is encountered +| +| WARNING: This feature is DEPRECATED and currently available only +| for backwards compatibility purposes! +| +*/ +$config['global_xss_filtering'] = FALSE; + +/* +|-------------------------------------------------------------------------- +| Cross Site Request Forgery +|-------------------------------------------------------------------------- +| Enables a CSRF cookie token to be set. When set to TRUE, token will be +| checked on a submitted form. If you are accepting user data, it is strongly +| recommended CSRF protection be enabled. +| +| 'csrf_token_name' = The token name +| 'csrf_cookie_name' = The cookie name +| 'csrf_expire' = The number in seconds the token should expire. +| 'csrf_regenerate' = Regenerate token on every submission +| 'csrf_exclude_uris' = Array of URIs which ignore CSRF checks +*/ +$config['csrf_protection'] = FALSE; +$config['csrf_token_name'] = 'csrf_test_name'; +$config['csrf_cookie_name'] = 'csrf_cookie_name'; +$config['csrf_expire'] = 7200; +$config['csrf_regenerate'] = TRUE; +$config['csrf_exclude_uris'] = array(); + +/* +|-------------------------------------------------------------------------- +| Output Compression +|-------------------------------------------------------------------------- +| +| Enables Gzip output compression for faster page loads. When enabled, +| the output class will test whether your server supports Gzip. +| Even if it does, however, not all browsers support compression +| so enable only if you are reasonably sure your visitors can handle it. +| +| Only used if zlib.output_compression is turned off in your php.ini. +| Please do not use it together with httpd-level output compression. +| +| VERY IMPORTANT: If you are getting a blank page when compression is enabled it +| means you are prematurely outputting something to your browser. It could +| even be a line of whitespace at the end of one of your scripts. For +| compression to work, nothing can be sent before the output buffer is called +| by the output class. Do not 'echo' any values with compression enabled. +| +*/ +$config['compress_output'] = FALSE; + +/* +|-------------------------------------------------------------------------- +| Master Time Reference +|-------------------------------------------------------------------------- +| +| Options are 'local' or any PHP supported timezone. This preference tells +| the system whether to use your server's local time as the master 'now' +| reference, or convert it to the configured one timezone. See the 'date +| helper' page of the user guide for information regarding date handling. +| +*/ +$config['time_reference'] = 'local'; + +/* +|-------------------------------------------------------------------------- +| Rewrite PHP Short Tags +|-------------------------------------------------------------------------- +| +| If your PHP installation does not have short tag support enabled CI +| can rewrite the tags on-the-fly, enabling you to utilize that syntax +| in your view files. Options are TRUE or FALSE (boolean) +| +| Note: You need to have eval() enabled for this to work. +| +*/ +$config['rewrite_short_tags'] = FALSE; + +/* +|-------------------------------------------------------------------------- +| Reverse Proxy IPs +|-------------------------------------------------------------------------- +| +| If your server is behind a reverse proxy, you must whitelist the proxy +| IP addresses from which CodeIgniter should trust headers such as +| HTTP_X_FORWARDED_FOR and HTTP_CLIENT_IP in order to properly identify +| the visitor's IP address. +| +| You can use both an array or a comma-separated list of proxy addresses, +| as well as specifying whole subnets. Here are a few examples: +| +| Comma-separated: '10.0.1.200,192.168.5.0/24' +| Array: array('10.0.1.200', '192.168.5.0/24') +*/ +$config['proxy_ips'] = ''; diff --git a/ci/application/config/constants.php b/ci/application/config/constants.php new file mode 100644 index 0000000..18d3b4b --- /dev/null +++ b/ci/application/config/constants.php @@ -0,0 +1,85 @@ +db->last_query() and profiling of DB queries. +| When you run a query, with this setting set to TRUE (default), +| CodeIgniter will store the SQL statement for debugging purposes. +| However, this may cause high memory usage, especially if you run +| a lot of SQL queries ... disable this to avoid that problem. +| +| The $active_group variable lets you choose which connection group to +| make active. By default there is only one group (the 'default' group). +| +| The $query_builder variables lets you determine whether or not to load +| the query builder class. +*/ +$active_group = 'default'; +$query_builder = TRUE; + +$db['default'] = array( + 'dsn' => '', + 'hostname' => 'localhost', + 'username' => 'brigitte', + 'password' => 'brigitte', + 'database' => 'brigitte', + 'dbdriver' => 'mysqli', + 'dbprefix' => '', + 'pconnect' => FALSE, + 'db_debug' => (ENVIRONMENT !== 'production'), + 'cache_on' => FALSE, + 'cachedir' => '', + 'char_set' => 'utf8', + 'dbcollat' => 'utf8_general_ci', + 'swap_pre' => '', + 'encrypt' => FALSE, + 'compress' => FALSE, + 'stricton' => FALSE, + 'failover' => array(), + 'save_queries' => TRUE +); diff --git a/ci/application/config/doctypes.php b/ci/application/config/doctypes.php new file mode 100644 index 0000000..59a7991 --- /dev/null +++ b/ci/application/config/doctypes.php @@ -0,0 +1,24 @@ + '', + 'xhtml1-strict' => '', + 'xhtml1-trans' => '', + 'xhtml1-frame' => '', + 'xhtml-basic11' => '', + 'html5' => '', + 'html4-strict' => '', + 'html4-trans' => '', + 'html4-frame' => '', + 'mathml1' => '', + 'mathml2' => '', + 'svg10' => '', + 'svg11' => '', + 'svg11-basic' => '', + 'svg11-tiny' => '', + 'xhtml-math-svg-xh' => '', + 'xhtml-math-svg-sh' => '', + 'xhtml-rdfa-1' => '', + 'xhtml-rdfa-2' => '' +); diff --git a/ci/application/config/foreign_chars.php b/ci/application/config/foreign_chars.php new file mode 100644 index 0000000..0231f35 --- /dev/null +++ b/ci/application/config/foreign_chars.php @@ -0,0 +1,114 @@ + 'ae', + '/ö|œ/' => 'oe', + '/ü/' => 'ue', + '/Ä/' => 'Ae', + '/Ü/' => 'Ue', + '/Ö/' => 'Oe', + '/À|Á|Â|Ã|Ä|Å|Ǻ|Ā|Ă|Ą|Ǎ|Α|Ά|Ả|Ạ|Ầ|Ẫ|Ẩ|Ậ|Ằ|Ắ|Ẵ|Ẳ|Ặ|А/' => 'A', + '/à|á|â|ã|å|ǻ|ā|ă|ą|ǎ|ª|α|ά|ả|ạ|ầ|ấ|ẫ|ẩ|ậ|ằ|ắ|ẵ|ẳ|ặ|а/' => 'a', + '/Б/' => 'B', + '/б/' => 'b', + '/Ç|Ć|Ĉ|Ċ|Č/' => 'C', + '/ç|ć|ĉ|ċ|č/' => 'c', + '/Д|Δ/' => 'D', + '/д|δ/' => 'd', + '/Ð|Ď|Đ/' => 'Dj', + '/ð|ď|đ/' => 'dj', + '/È|É|Ê|Ë|Ē|Ĕ|Ė|Ę|Ě|Ε|Έ|Ẽ|Ẻ|Ẹ|Ề|Ế|Ễ|Ể|Ệ|Е|Э/' => 'E', + '/è|é|ê|ë|ē|ĕ|ė|ę|ě|έ|ε|ẽ|ẻ|ẹ|ề|ế|ễ|ể|ệ|е|э/' => 'e', + '/Ф/' => 'F', + '/ф/' => 'f', + '/Ĝ|Ğ|Ġ|Ģ|Γ|Г|Ґ/' => 'G', + '/ĝ|ğ|ġ|ģ|γ|г|ґ/' => 'g', + '/Ĥ|Ħ/' => 'H', + '/ĥ|ħ/' => 'h', + '/Ì|Í|Î|Ï|Ĩ|Ī|Ĭ|Ǐ|Į|İ|Η|Ή|Ί|Ι|Ϊ|Ỉ|Ị|И|Ы/' => 'I', + '/ì|í|î|ï|ĩ|ī|ĭ|ǐ|į|ı|η|ή|ί|ι|ϊ|ỉ|ị|и|ы|ї/' => 'i', + '/Ĵ/' => 'J', + '/ĵ/' => 'j', + '/Θ/' => 'TH', + '/θ/' => 'th', + '/Ķ|Κ|К/' => 'K', + '/ķ|κ|к/' => 'k', + '/Ĺ|Ļ|Ľ|Ŀ|Ł|Λ|Л/' => 'L', + '/ĺ|ļ|ľ|ŀ|ł|λ|л/' => 'l', + '/М/' => 'M', + '/м/' => 'm', + '/Ñ|Ń|Ņ|Ň|Ν|Н/' => 'N', + '/ñ|ń|ņ|ň|ʼn|ν|н/' => 'n', + '/Ò|Ó|Ô|Õ|Ō|Ŏ|Ǒ|Ő|Ơ|Ø|Ǿ|Ο|Ό|Ω|Ώ|Ỏ|Ọ|Ồ|Ố|Ỗ|Ổ|Ộ|Ờ|Ớ|Ỡ|Ở|Ợ|О/' => 'O', + '/ò|ó|ô|õ|ō|ŏ|ǒ|ő|ơ|ø|ǿ|º|ο|ό|ω|ώ|ỏ|ọ|ồ|ố|ỗ|ổ|ộ|ờ|ớ|ỡ|ở|ợ|о/' => 'o', + '/П/' => 'P', + '/п/' => 'p', + '/Ŕ|Ŗ|Ř|Ρ|Р/' => 'R', + '/ŕ|ŗ|ř|ρ|р/' => 'r', + '/Ś|Ŝ|Ş|Ș|Š|Σ|С/' => 'S', + '/ś|ŝ|ş|ș|š|ſ|σ|ς|с/' => 's', + '/Ț|Ţ|Ť|Ŧ|Τ|Т/' => 'T', + '/ț|ţ|ť|ŧ|τ|т/' => 't', + '/Þ|þ/' => 'th', + '/Ù|Ú|Û|Ũ|Ū|Ŭ|Ů|Ű|Ų|Ư|Ǔ|Ǖ|Ǘ|Ǚ|Ǜ|Ũ|Ủ|Ụ|Ừ|Ứ|Ữ|Ử|Ự|У/' => 'U', + '/ù|ú|û|ũ|ū|ŭ|ů|ű|ų|ư|ǔ|ǖ|ǘ|ǚ|ǜ|υ|ύ|ϋ|ủ|ụ|ừ|ứ|ữ|ử|ự|у/' => 'u', + '/Ƴ|Ɏ|Ỵ|Ẏ|Ӳ|Ӯ|Ў|Ý|Ÿ|Ŷ|Υ|Ύ|Ϋ|Ỳ|Ỹ|Ỷ|Ỵ|Й/' => 'Y', + '/ẙ|ʏ|ƴ|ɏ|ỵ|ẏ|ӳ|ӯ|ў|ý|ÿ|ŷ|ỳ|ỹ|ỷ|ỵ|й/' => 'y', + '/В/' => 'V', + '/в/' => 'v', + '/Ŵ/' => 'W', + '/ŵ/' => 'w', + '/Φ/' => 'F', + '/φ/' => 'f', + '/Χ/' => 'CH', + '/χ/' => 'ch', + '/Ź|Ż|Ž|Ζ|З/' => 'Z', + '/ź|ż|ž|ζ|з/' => 'z', + '/Æ|Ǽ/' => 'AE', + '/ß/' => 'ss', + '/IJ/' => 'IJ', + '/ij/' => 'ij', + '/Œ/' => 'OE', + '/ƒ/' => 'f', + '/Ξ/' => 'KS', + '/ξ/' => 'ks', + '/Π/' => 'P', + '/π/' => 'p', + '/Β/' => 'V', + '/β/' => 'v', + '/Μ/' => 'M', + '/μ/' => 'm', + '/Ψ/' => 'PS', + '/ψ/' => 'ps', + '/Ё/' => 'Yo', + '/ё/' => 'yo', + '/Є/' => 'Ye', + '/є/' => 'ye', + '/Ї/' => 'Yi', + '/Ж/' => 'Zh', + '/ж/' => 'zh', + '/Х/' => 'Kh', + '/х/' => 'kh', + '/Ц/' => 'Ts', + '/ц/' => 'ts', + '/Ч/' => 'Ch', + '/ч/' => 'ch', + '/Ш/' => 'Sh', + '/ш/' => 'sh', + '/Щ/' => 'Shch', + '/щ/' => 'shch', + '/Ъ|ъ|Ь|ь/' => '', + '/Ю/' => 'Yu', + '/ю/' => 'yu', + '/Я/' => 'Ya', + '/я/' => 'ya' +); diff --git a/ci/application/config/hooks.php b/ci/application/config/hooks.php new file mode 100644 index 0000000..79c5c16 --- /dev/null +++ b/ci/application/config/hooks.php @@ -0,0 +1,13 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/application/config/memcached.php b/ci/application/config/memcached.php new file mode 100644 index 0000000..65a1496 --- /dev/null +++ b/ci/application/config/memcached.php @@ -0,0 +1,19 @@ + array( + 'hostname' => '127.0.0.1', + 'port' => '11211', + 'weight' => '1', + ), +); diff --git a/ci/application/config/migration.php b/ci/application/config/migration.php new file mode 100644 index 0000000..4b585a6 --- /dev/null +++ b/ci/application/config/migration.php @@ -0,0 +1,84 @@ +migration->current() this is the version that schema will +| be upgraded / downgraded to. +| +*/ +$config['migration_version'] = 0; + +/* +|-------------------------------------------------------------------------- +| Migrations Path +|-------------------------------------------------------------------------- +| +| Path to your migrations folder. +| Typically, it will be within your application path. +| Also, writing permission is required within the migrations path. +| +*/ +$config['migration_path'] = APPPATH.'migrations/'; diff --git a/ci/application/config/mimes.php b/ci/application/config/mimes.php new file mode 100644 index 0000000..b2e989f --- /dev/null +++ b/ci/application/config/mimes.php @@ -0,0 +1,186 @@ + array('application/mac-binhex40', 'application/mac-binhex', 'application/x-binhex40', 'application/x-mac-binhex40'), + 'cpt' => 'application/mac-compactpro', + 'csv' => array('text/x-comma-separated-values', 'text/comma-separated-values', 'application/octet-stream', 'application/vnd.ms-excel', 'application/x-csv', 'text/x-csv', 'text/csv', 'application/csv', 'application/excel', 'application/vnd.msexcel', 'text/plain'), + 'bin' => array('application/macbinary', 'application/mac-binary', 'application/octet-stream', 'application/x-binary', 'application/x-macbinary'), + 'dms' => 'application/octet-stream', + 'lha' => 'application/octet-stream', + 'lzh' => 'application/octet-stream', + 'exe' => array('application/octet-stream', 'application/x-msdownload'), + 'class' => 'application/octet-stream', + 'psd' => array('application/x-photoshop', 'image/vnd.adobe.photoshop'), + 'so' => 'application/octet-stream', + 'sea' => 'application/octet-stream', + 'dll' => 'application/octet-stream', + 'oda' => 'application/oda', + 'pdf' => array('application/pdf', 'application/force-download', 'application/x-download', 'binary/octet-stream'), + 'ai' => array('application/pdf', 'application/postscript'), + 'eps' => 'application/postscript', + 'ps' => 'application/postscript', + 'smi' => 'application/smil', + 'smil' => 'application/smil', + 'mif' => 'application/vnd.mif', + 'xls' => array('application/vnd.ms-excel', 'application/msexcel', 'application/x-msexcel', 'application/x-ms-excel', 'application/x-excel', 'application/x-dos_ms_excel', 'application/xls', 'application/x-xls', 'application/excel', 'application/download', 'application/vnd.ms-office', 'application/msword'), + 'ppt' => array('application/powerpoint', 'application/vnd.ms-powerpoint', 'application/vnd.ms-office', 'application/msword'), + 'pptx' => array('application/vnd.openxmlformats-officedocument.presentationml.presentation', 'application/x-zip', 'application/zip'), + 'wbxml' => 'application/wbxml', + 'wmlc' => 'application/wmlc', + 'dcr' => 'application/x-director', + 'dir' => 'application/x-director', + 'dxr' => 'application/x-director', + 'dvi' => 'application/x-dvi', + 'gtar' => 'application/x-gtar', + 'gz' => 'application/x-gzip', + 'gzip' => 'application/x-gzip', + 'php' => array('application/x-httpd-php', 'application/php', 'application/x-php', 'text/php', 'text/x-php', 'application/x-httpd-php-source'), + 'php4' => 'application/x-httpd-php', + 'php3' => 'application/x-httpd-php', + 'phtml' => 'application/x-httpd-php', + 'phps' => 'application/x-httpd-php-source', + 'js' => array('application/x-javascript', 'text/plain'), + 'swf' => 'application/x-shockwave-flash', + 'sit' => 'application/x-stuffit', + 'tar' => 'application/x-tar', + 'tgz' => array('application/x-tar', 'application/x-gzip-compressed'), + 'z' => 'application/x-compress', + 'xhtml' => 'application/xhtml+xml', + 'xht' => 'application/xhtml+xml', + 'zip' => array('application/x-zip', 'application/zip', 'application/x-zip-compressed', 'application/s-compressed', 'multipart/x-zip'), + 'rar' => array('application/x-rar', 'application/rar', 'application/x-rar-compressed'), + 'mid' => 'audio/midi', + 'midi' => 'audio/midi', + 'mpga' => 'audio/mpeg', + 'mp2' => 'audio/mpeg', + 'mp3' => array('audio/mpeg', 'audio/mpg', 'audio/mpeg3', 'audio/mp3'), + 'aif' => array('audio/x-aiff', 'audio/aiff'), + 'aiff' => array('audio/x-aiff', 'audio/aiff'), + 'aifc' => 'audio/x-aiff', + 'ram' => 'audio/x-pn-realaudio', + 'rm' => 'audio/x-pn-realaudio', + 'rpm' => 'audio/x-pn-realaudio-plugin', + 'ra' => 'audio/x-realaudio', + 'rv' => 'video/vnd.rn-realvideo', + 'wav' => array('audio/x-wav', 'audio/wave', 'audio/wav'), + 'bmp' => array('image/bmp', 'image/x-bmp', 'image/x-bitmap', 'image/x-xbitmap', 'image/x-win-bitmap', 'image/x-windows-bmp', 'image/ms-bmp', 'image/x-ms-bmp', 'application/bmp', 'application/x-bmp', 'application/x-win-bitmap'), + 'gif' => 'image/gif', + 'jpeg' => array('image/jpeg', 'image/pjpeg'), + 'jpg' => array('image/jpeg', 'image/pjpeg'), + 'jpe' => array('image/jpeg', 'image/pjpeg'), + 'jp2' => array('image/jp2', 'video/mj2', 'image/jpx', 'image/jpm'), + 'j2k' => array('image/jp2', 'video/mj2', 'image/jpx', 'image/jpm'), + 'jpf' => array('image/jp2', 'video/mj2', 'image/jpx', 'image/jpm'), + 'jpg2' => array('image/jp2', 'video/mj2', 'image/jpx', 'image/jpm'), + 'jpx' => array('image/jp2', 'video/mj2', 'image/jpx', 'image/jpm'), + 'jpm' => array('image/jp2', 'video/mj2', 'image/jpx', 'image/jpm'), + 'mj2' => array('image/jp2', 'video/mj2', 'image/jpx', 'image/jpm'), + 'mjp2' => array('image/jp2', 'video/mj2', 'image/jpx', 'image/jpm'), + 'png' => array('image/png', 'image/x-png'), + 'tiff' => 'image/tiff', + 'tif' => 'image/tiff', + 'heic' => 'image/heic', + 'heif' => 'image/heif', + 'css' => array('text/css', 'text/plain'), + 'html' => array('text/html', 'text/plain'), + 'htm' => array('text/html', 'text/plain'), + 'shtml' => array('text/html', 'text/plain'), + 'txt' => 'text/plain', + 'text' => 'text/plain', + 'log' => array('text/plain', 'text/x-log'), + 'rtx' => 'text/richtext', + 'rtf' => 'text/rtf', + 'xml' => array('application/xml', 'text/xml', 'text/plain'), + 'xsl' => array('application/xml', 'text/xsl', 'text/xml'), + 'mpeg' => 'video/mpeg', + 'mpg' => 'video/mpeg', + 'mpe' => 'video/mpeg', + 'qt' => 'video/quicktime', + 'mov' => 'video/quicktime', + 'avi' => array('video/x-msvideo', 'video/msvideo', 'video/avi', 'application/x-troff-msvideo'), + 'movie' => 'video/x-sgi-movie', + 'doc' => array('application/msword', 'application/vnd.ms-office'), + 'docx' => array('application/vnd.openxmlformats-officedocument.wordprocessingml.document', 'application/zip', 'application/msword', 'application/x-zip'), + 'dot' => array('application/msword', 'application/vnd.ms-office'), + 'dotx' => array('application/vnd.openxmlformats-officedocument.wordprocessingml.document', 'application/zip', 'application/msword'), + 'xlsx' => array('application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', 'application/zip', 'application/vnd.ms-excel', 'application/msword', 'application/x-zip'), + 'word' => array('application/msword', 'application/octet-stream'), + 'xl' => 'application/excel', + 'eml' => 'message/rfc822', + 'json' => array('application/json', 'text/json'), + 'pem' => array('application/x-x509-user-cert', 'application/x-pem-file', 'application/octet-stream'), + 'p10' => array('application/x-pkcs10', 'application/pkcs10'), + 'p12' => 'application/x-pkcs12', + 'p7a' => 'application/x-pkcs7-signature', + 'p7c' => array('application/pkcs7-mime', 'application/x-pkcs7-mime'), + 'p7m' => array('application/pkcs7-mime', 'application/x-pkcs7-mime'), + 'p7r' => 'application/x-pkcs7-certreqresp', + 'p7s' => 'application/pkcs7-signature', + 'crt' => array('application/x-x509-ca-cert', 'application/x-x509-user-cert', 'application/pkix-cert'), + 'crl' => array('application/pkix-crl', 'application/pkcs-crl'), + 'der' => 'application/x-x509-ca-cert', + 'kdb' => 'application/octet-stream', + 'pgp' => 'application/pgp', + 'gpg' => 'application/gpg-keys', + 'sst' => 'application/octet-stream', + 'csr' => 'application/octet-stream', + 'rsa' => 'application/x-pkcs7', + 'cer' => array('application/pkix-cert', 'application/x-x509-ca-cert'), + '3g2' => 'video/3gpp2', + '3gp' => array('video/3gp', 'video/3gpp'), + 'mp4' => 'video/mp4', + 'm4a' => 'audio/x-m4a', + 'f4v' => array('video/mp4', 'video/x-f4v'), + 'flv' => 'video/x-flv', + 'webm' => 'video/webm', + 'aac' => array('audio/x-aac', 'audio/aac'), + 'm4u' => 'application/vnd.mpegurl', + 'm3u' => 'text/plain', + 'xspf' => 'application/xspf+xml', + 'vlc' => 'application/videolan', + 'wmv' => array('video/x-ms-wmv', 'video/x-ms-asf'), + 'au' => 'audio/x-au', + 'ac3' => 'audio/ac3', + 'flac' => 'audio/x-flac', + 'ogg' => array('audio/ogg', 'video/ogg', 'application/ogg'), + 'kmz' => array('application/vnd.google-earth.kmz', 'application/zip', 'application/x-zip'), + 'kml' => array('application/vnd.google-earth.kml+xml', 'application/xml', 'text/xml'), + 'ics' => 'text/calendar', + 'ical' => 'text/calendar', + 'zsh' => 'text/x-scriptzsh', + '7z' => array('application/x-7z-compressed', 'application/x-compressed', 'application/x-zip-compressed', 'application/zip', 'multipart/x-zip'), + '7zip' => array('application/x-7z-compressed', 'application/x-compressed', 'application/x-zip-compressed', 'application/zip', 'multipart/x-zip'), + 'cdr' => array('application/cdr', 'application/coreldraw', 'application/x-cdr', 'application/x-coreldraw', 'image/cdr', 'image/x-cdr', 'zz-application/zz-winassoc-cdr'), + 'wma' => array('audio/x-ms-wma', 'video/x-ms-asf'), + 'jar' => array('application/java-archive', 'application/x-java-application', 'application/x-jar', 'application/x-compressed'), + 'svg' => array('image/svg+xml', 'image/svg', 'application/xml', 'text/xml'), + 'vcf' => 'text/x-vcard', + 'srt' => array('text/srt', 'text/plain'), + 'vtt' => array('text/vtt', 'text/plain'), + 'ico' => array('image/x-icon', 'image/x-ico', 'image/vnd.microsoft.icon'), + 'odc' => 'application/vnd.oasis.opendocument.chart', + 'otc' => 'application/vnd.oasis.opendocument.chart-template', + 'odf' => 'application/vnd.oasis.opendocument.formula', + 'otf' => 'application/vnd.oasis.opendocument.formula-template', + 'odg' => 'application/vnd.oasis.opendocument.graphics', + 'otg' => 'application/vnd.oasis.opendocument.graphics-template', + 'odi' => 'application/vnd.oasis.opendocument.image', + 'oti' => 'application/vnd.oasis.opendocument.image-template', + 'odp' => 'application/vnd.oasis.opendocument.presentation', + 'otp' => 'application/vnd.oasis.opendocument.presentation-template', + 'ods' => 'application/vnd.oasis.opendocument.spreadsheet', + 'ots' => 'application/vnd.oasis.opendocument.spreadsheet-template', + 'odt' => 'application/vnd.oasis.opendocument.text', + 'odm' => 'application/vnd.oasis.opendocument.text-master', + 'ott' => 'application/vnd.oasis.opendocument.text-template', + 'oth' => 'application/vnd.oasis.opendocument.text-web' +); diff --git a/ci/application/config/profiler.php b/ci/application/config/profiler.php new file mode 100644 index 0000000..3436e93 --- /dev/null +++ b/ci/application/config/profiler.php @@ -0,0 +1,14 @@ + my_controller/index +| my-controller/my-method -> my_controller/my_method +*/ +$route['default_controller'] = 'welcome'; +$route['404_override'] = ''; +$route['translate_uri_dashes'] = FALSE; diff --git a/ci/application/config/smileys.php b/ci/application/config/smileys.php new file mode 100644 index 0000000..a9b9191 --- /dev/null +++ b/ci/application/config/smileys.php @@ -0,0 +1,64 @@ + array('grin.gif', '19', '19', 'grin'), + ':lol:' => array('lol.gif', '19', '19', 'LOL'), + ':cheese:' => array('cheese.gif', '19', '19', 'cheese'), + ':)' => array('smile.gif', '19', '19', 'smile'), + ';-)' => array('wink.gif', '19', '19', 'wink'), + ';)' => array('wink.gif', '19', '19', 'wink'), + ':smirk:' => array('smirk.gif', '19', '19', 'smirk'), + ':roll:' => array('rolleyes.gif', '19', '19', 'rolleyes'), + ':-S' => array('confused.gif', '19', '19', 'confused'), + ':wow:' => array('surprise.gif', '19', '19', 'surprised'), + ':bug:' => array('bigsurprise.gif', '19', '19', 'big surprise'), + ':-P' => array('tongue_laugh.gif', '19', '19', 'tongue laugh'), + '%-P' => array('tongue_rolleye.gif', '19', '19', 'tongue rolleye'), + ';-P' => array('tongue_wink.gif', '19', '19', 'tongue wink'), + ':P' => array('raspberry.gif', '19', '19', 'raspberry'), + ':blank:' => array('blank.gif', '19', '19', 'blank stare'), + ':long:' => array('longface.gif', '19', '19', 'long face'), + ':ohh:' => array('ohh.gif', '19', '19', 'ohh'), + ':grrr:' => array('grrr.gif', '19', '19', 'grrr'), + ':gulp:' => array('gulp.gif', '19', '19', 'gulp'), + '8-/' => array('ohoh.gif', '19', '19', 'oh oh'), + ':down:' => array('downer.gif', '19', '19', 'downer'), + ':red:' => array('embarrassed.gif', '19', '19', 'red face'), + ':sick:' => array('sick.gif', '19', '19', 'sick'), + ':shut:' => array('shuteye.gif', '19', '19', 'shut eye'), + ':-/' => array('hmm.gif', '19', '19', 'hmmm'), + '>:(' => array('mad.gif', '19', '19', 'mad'), + ':mad:' => array('mad.gif', '19', '19', 'mad'), + '>:-(' => array('angry.gif', '19', '19', 'angry'), + ':angry:' => array('angry.gif', '19', '19', 'angry'), + ':zip:' => array('zip.gif', '19', '19', 'zipper'), + ':kiss:' => array('kiss.gif', '19', '19', 'kiss'), + ':ahhh:' => array('shock.gif', '19', '19', 'shock'), + ':coolsmile:' => array('shade_smile.gif', '19', '19', 'cool smile'), + ':coolsmirk:' => array('shade_smirk.gif', '19', '19', 'cool smirk'), + ':coolgrin:' => array('shade_grin.gif', '19', '19', 'cool grin'), + ':coolhmm:' => array('shade_hmm.gif', '19', '19', 'cool hmm'), + ':coolmad:' => array('shade_mad.gif', '19', '19', 'cool mad'), + ':coolcheese:' => array('shade_cheese.gif', '19', '19', 'cool cheese'), + ':vampire:' => array('vampire.gif', '19', '19', 'vampire'), + ':snake:' => array('snake.gif', '19', '19', 'snake'), + ':exclaim:' => array('exclaim.gif', '19', '19', 'exclaim'), + ':question:' => array('question.gif', '19', '19', 'question') + +); diff --git a/ci/application/config/user_agents.php b/ci/application/config/user_agents.php new file mode 100644 index 0000000..5e1f6af --- /dev/null +++ b/ci/application/config/user_agents.php @@ -0,0 +1,222 @@ + 'Windows 10', + 'windows nt 6.3' => 'Windows 8.1', + 'windows nt 6.2' => 'Windows 8', + 'windows nt 6.1' => 'Windows 7', + 'windows nt 6.0' => 'Windows Vista', + 'windows nt 5.2' => 'Windows 2003', + 'windows nt 5.1' => 'Windows XP', + 'windows nt 5.0' => 'Windows 2000', + 'windows nt 4.0' => 'Windows NT 4.0', + 'winnt4.0' => 'Windows NT 4.0', + 'winnt 4.0' => 'Windows NT', + 'winnt' => 'Windows NT', + 'windows 98' => 'Windows 98', + 'win98' => 'Windows 98', + 'windows 95' => 'Windows 95', + 'win95' => 'Windows 95', + 'windows phone' => 'Windows Phone', + 'windows' => 'Unknown Windows OS', + 'android' => 'Android', + 'blackberry' => 'BlackBerry', + 'iphone' => 'iOS', + 'ipad' => 'iOS', + 'ipod' => 'iOS', + 'os x' => 'Mac OS X', + 'ppc mac' => 'Power PC Mac', + 'freebsd' => 'FreeBSD', + 'ppc' => 'Macintosh', + 'linux' => 'Linux', + 'debian' => 'Debian', + 'sunos' => 'Sun Solaris', + 'beos' => 'BeOS', + 'apachebench' => 'ApacheBench', + 'aix' => 'AIX', + 'irix' => 'Irix', + 'osf' => 'DEC OSF', + 'hp-ux' => 'HP-UX', + 'netbsd' => 'NetBSD', + 'bsdi' => 'BSDi', + 'openbsd' => 'OpenBSD', + 'gnu' => 'GNU/Linux', + 'unix' => 'Unknown Unix OS', + 'symbian' => 'Symbian OS' +); + + +// The order of this array should NOT be changed. Many browsers return +// multiple browser types so we want to identify the sub-type first. +$browsers = array( + 'OPR' => 'Opera', + 'Flock' => 'Flock', + 'Edge' => 'Edge', + 'Chrome' => 'Chrome', + // Opera 10+ always reports Opera/9.80 and appends Version/ to the user agent string + 'Opera.*?Version' => 'Opera', + 'Opera' => 'Opera', + 'MSIE' => 'Internet Explorer', + 'Internet Explorer' => 'Internet Explorer', + 'Trident.* rv' => 'Internet Explorer', + 'Shiira' => 'Shiira', + 'Firefox' => 'Firefox', + 'Chimera' => 'Chimera', + 'Phoenix' => 'Phoenix', + 'Firebird' => 'Firebird', + 'Camino' => 'Camino', + 'Netscape' => 'Netscape', + 'OmniWeb' => 'OmniWeb', + 'Safari' => 'Safari', + 'Mozilla' => 'Mozilla', + 'Konqueror' => 'Konqueror', + 'icab' => 'iCab', + 'Lynx' => 'Lynx', + 'Links' => 'Links', + 'hotjava' => 'HotJava', + 'amaya' => 'Amaya', + 'IBrowse' => 'IBrowse', + 'Maxthon' => 'Maxthon', + 'Ubuntu' => 'Ubuntu Web Browser' +); + +$mobiles = array( + // legacy array, old values commented out + 'mobileexplorer' => 'Mobile Explorer', +// 'openwave' => 'Open Wave', +// 'opera mini' => 'Opera Mini', +// 'operamini' => 'Opera Mini', +// 'elaine' => 'Palm', + 'palmsource' => 'Palm', +// 'digital paths' => 'Palm', +// 'avantgo' => 'Avantgo', +// 'xiino' => 'Xiino', + 'palmscape' => 'Palmscape', +// 'nokia' => 'Nokia', +// 'ericsson' => 'Ericsson', +// 'blackberry' => 'BlackBerry', +// 'motorola' => 'Motorola' + + // Phones and Manufacturers + 'motorola' => 'Motorola', + 'nokia' => 'Nokia', + 'nexus' => 'Nexus', + 'palm' => 'Palm', + 'iphone' => 'Apple iPhone', + 'ipad' => 'iPad', + 'ipod' => 'Apple iPod Touch', + 'sony' => 'Sony Ericsson', + 'ericsson' => 'Sony Ericsson', + 'blackberry' => 'BlackBerry', + 'cocoon' => 'O2 Cocoon', + 'blazer' => 'Treo', + 'lg' => 'LG', + 'amoi' => 'Amoi', + 'xda' => 'XDA', + 'mda' => 'MDA', + 'vario' => 'Vario', + 'htc' => 'HTC', + 'samsung' => 'Samsung', + 'sharp' => 'Sharp', + 'sie-' => 'Siemens', + 'alcatel' => 'Alcatel', + 'benq' => 'BenQ', + 'ipaq' => 'HP iPaq', + 'mot-' => 'Motorola', + 'playstation portable' => 'PlayStation Portable', + 'playstation 3' => 'PlayStation 3', + 'playstation vita' => 'PlayStation Vita', + 'hiptop' => 'Danger Hiptop', + 'nec-' => 'NEC', + 'panasonic' => 'Panasonic', + 'philips' => 'Philips', + 'sagem' => 'Sagem', + 'sanyo' => 'Sanyo', + 'spv' => 'SPV', + 'zte' => 'ZTE', + 'sendo' => 'Sendo', + 'nintendo dsi' => 'Nintendo DSi', + 'nintendo ds' => 'Nintendo DS', + 'nintendo 3ds' => 'Nintendo 3DS', + 'wii' => 'Nintendo Wii', + 'open web' => 'Open Web', + 'openweb' => 'OpenWeb', + 'meizu' => 'Meizu', + 'huawei' => 'Huawei', + 'xiaomi' => 'Xiaomi', + 'oppo' => 'Oppo', + 'vivo' => 'Vivo', + 'infinix' => 'Infinix', + + // Operating Systems + 'android' => 'Android', + 'symbian' => 'Symbian', + 'SymbianOS' => 'SymbianOS', + 'elaine' => 'Palm', + 'series60' => 'Symbian S60', + 'windows ce' => 'Windows CE', + + // Browsers + 'obigo' => 'Obigo', + 'netfront' => 'Netfront Browser', + 'openwave' => 'Openwave Browser', + 'mobilexplorer' => 'Mobile Explorer', + 'operamini' => 'Opera Mini', + 'opera mini' => 'Opera Mini', + 'opera mobi' => 'Opera Mobile', + 'fennec' => 'Firefox Mobile', + + // Other + 'digital paths' => 'Digital Paths', + 'avantgo' => 'AvantGo', + 'xiino' => 'Xiino', + 'novarra' => 'Novarra Transcoder', + 'vodafone' => 'Vodafone', + 'docomo' => 'NTT DoCoMo', + 'o2' => 'O2', + + // Fallback + 'mobile' => 'Generic Mobile', + 'wireless' => 'Generic Mobile', + 'j2me' => 'Generic Mobile', + 'midp' => 'Generic Mobile', + 'cldc' => 'Generic Mobile', + 'up.link' => 'Generic Mobile', + 'up.browser' => 'Generic Mobile', + 'smartphone' => 'Generic Mobile', + 'cellphone' => 'Generic Mobile' +); + +// There are hundreds of bots but these are the most common. +$robots = array( + 'googlebot' => 'Googlebot', + 'msnbot' => 'MSNBot', + 'baiduspider' => 'Baiduspider', + 'bingbot' => 'Bing', + 'slurp' => 'Inktomi Slurp', + 'yahoo' => 'Yahoo', + 'ask jeeves' => 'Ask Jeeves', + 'fastcrawler' => 'FastCrawler', + 'infoseek' => 'InfoSeek Robot 1.0', + 'lycos' => 'Lycos', + 'yandex' => 'YandexBot', + 'mediapartners-google' => 'MediaPartners Google', + 'CRAZYWEBCRAWLER' => 'Crazy Webcrawler', + 'adsbot-google' => 'AdsBot Google', + 'feedfetcher-google' => 'Feedfetcher Google', + 'curious george' => 'Curious George', + 'ia_archiver' => 'Alexa Crawler', + 'MJ12bot' => 'Majestic-12', + 'Uptimebot' => 'Uptimebot', + 'UptimeRobot' => 'UptimeRobot' +); diff --git a/ci/application/controllers/Albums.php b/ci/application/controllers/Albums.php new file mode 100644 index 0000000..125b4e8 --- /dev/null +++ b/ci/application/controllers/Albums.php @@ -0,0 +1,18 @@ +load->model('model_music'); + } + public function index(){ + $albums = $this->model_music->getAlbums(); + $this->load->view('layout/header'); + $this->load->view('albums_list',['albums'=>$albums]); + $this->load->view('layout/footer'); + } + +} + diff --git a/ci/application/controllers/Welcome.php b/ci/application/controllers/Welcome.php new file mode 100644 index 0000000..5f82771 --- /dev/null +++ b/ci/application/controllers/Welcome.php @@ -0,0 +1,25 @@ + + * @see https://codeigniter.com/userguide3/general/urls.html + */ + public function index() + { + $this->load->view('welcome_message'); + } +} diff --git a/ci/application/controllers/index.html b/ci/application/controllers/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/application/controllers/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/application/core/index.html b/ci/application/core/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/application/core/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/application/helpers/index.html b/ci/application/helpers/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/application/helpers/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/application/hooks/index.html b/ci/application/hooks/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/application/hooks/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/application/index.html b/ci/application/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/application/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/application/language/english/index.html b/ci/application/language/english/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/application/language/english/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/application/language/index.html b/ci/application/language/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/application/language/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/application/libraries/index.html b/ci/application/libraries/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/application/libraries/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/application/logs/index.html b/ci/application/logs/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/application/logs/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/application/models/Model_music.php b/ci/application/models/Model_music.php new file mode 100644 index 0000000..ddcbb79 --- /dev/null +++ b/ci/application/models/Model_music.php @@ -0,0 +1,20 @@ +load->database(); + } + + public function getAlbums(){ + $query = $this->db->query( + "SELECT album.name,album.id,year,artist.name as artistName, genre.name as genreName,jpeg + FROM album + JOIN artist ON album.artistid = artist.id + JOIN genre ON genre.id = album.genreid + JOIN cover ON cover.id = album.coverid + ORDER BY year + " + ); + return $query->result(); + } +} diff --git a/ci/application/models/index.html b/ci/application/models/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/application/models/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/application/third_party/index.html b/ci/application/third_party/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/application/third_party/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/application/views/albums_list.php b/ci/application/views/albums_list.php new file mode 100644 index 0000000..0fd49bb --- /dev/null +++ b/ci/application/views/albums_list.php @@ -0,0 +1,14 @@ +
Albums list
+
+
"; + echo "
"; + echo anchor("albums/view/{$album->id}","{$album->name}"); + echo "
"; + echo ''; + echo "
{$album->year} - {$album->artistName}
+
"; +} +?> +
diff --git a/ci/application/views/errors/cli/error_404.php b/ci/application/views/errors/cli/error_404.php new file mode 100644 index 0000000..6984b61 --- /dev/null +++ b/ci/application/views/errors/cli/error_404.php @@ -0,0 +1,8 @@ + + +An uncaught Exception was encountered + +Type: +Message: +Filename: getFile(), "\n"; ?> +Line Number: getLine(); ?> + + + +Backtrace: +getTrace() as $error): ?> + + File: + Line: + Function: + + + + diff --git a/ci/application/views/errors/cli/error_general.php b/ci/application/views/errors/cli/error_general.php new file mode 100644 index 0000000..6984b61 --- /dev/null +++ b/ci/application/views/errors/cli/error_general.php @@ -0,0 +1,8 @@ + + +A PHP Error was encountered + +Severity: +Message: +Filename: +Line Number: + + + +Backtrace: + + + File: + Line: + Function: + + + + diff --git a/ci/application/views/errors/cli/index.html b/ci/application/views/errors/cli/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/application/views/errors/cli/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/application/views/errors/html/error_404.php b/ci/application/views/errors/html/error_404.php new file mode 100644 index 0000000..756ea9d --- /dev/null +++ b/ci/application/views/errors/html/error_404.php @@ -0,0 +1,64 @@ + + + + +404 Page Not Found + + + +
+

+ +
+ + \ No newline at end of file diff --git a/ci/application/views/errors/html/error_db.php b/ci/application/views/errors/html/error_db.php new file mode 100644 index 0000000..f5a43f6 --- /dev/null +++ b/ci/application/views/errors/html/error_db.php @@ -0,0 +1,64 @@ + + + + +Database Error + + + +
+

+ +
+ + \ No newline at end of file diff --git a/ci/application/views/errors/html/error_exception.php b/ci/application/views/errors/html/error_exception.php new file mode 100644 index 0000000..8784886 --- /dev/null +++ b/ci/application/views/errors/html/error_exception.php @@ -0,0 +1,32 @@ + + +
+ +

An uncaught Exception was encountered

+ +

Type:

+

Message:

+

Filename: getFile(); ?>

+

Line Number: getLine(); ?>

+ + + +

Backtrace:

+ getTrace() as $error): ?> + + + +

+ File:
+ Line:
+ Function: +

+ + + + + + +
\ No newline at end of file diff --git a/ci/application/views/errors/html/error_general.php b/ci/application/views/errors/html/error_general.php new file mode 100644 index 0000000..fc3b2eb --- /dev/null +++ b/ci/application/views/errors/html/error_general.php @@ -0,0 +1,64 @@ + + + + +Error + + + +
+

+ +
+ + \ No newline at end of file diff --git a/ci/application/views/errors/html/error_php.php b/ci/application/views/errors/html/error_php.php new file mode 100644 index 0000000..b146f9c --- /dev/null +++ b/ci/application/views/errors/html/error_php.php @@ -0,0 +1,33 @@ + + +
+ +

A PHP Error was encountered

+ +

Severity:

+

Message:

+

Filename:

+

Line Number:

+ + + +

Backtrace:

+ + + + +

+ File:
+ Line:
+ Function: +

+ + + + + + + +
\ No newline at end of file diff --git a/ci/application/views/errors/html/index.html b/ci/application/views/errors/html/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/application/views/errors/html/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/application/views/errors/index.html b/ci/application/views/errors/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/application/views/errors/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/application/views/index.html b/ci/application/views/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/application/views/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/application/views/layout/footer.php b/ci/application/views/layout/footer.php new file mode 100644 index 0000000..63bbae9 --- /dev/null +++ b/ci/application/views/layout/footer.php @@ -0,0 +1,3 @@ + + + diff --git a/ci/application/views/layout/header.php b/ci/application/views/layout/header.php new file mode 100644 index 0000000..62a0f96 --- /dev/null +++ b/ci/application/views/layout/header.php @@ -0,0 +1,25 @@ + + + + + MUSIC APP + + + + + + +
+ diff --git a/ci/application/views/welcome_message.php b/ci/application/views/welcome_message.php new file mode 100644 index 0000000..9db22bc --- /dev/null +++ b/ci/application/views/welcome_message.php @@ -0,0 +1,100 @@ + + + + + Welcome to CodeIgniter + + + + + +
+

Welcome to CodeIgniter!

+ +
+

The page you are looking at is being generated dynamically by CodeIgniter.

+ +

If you would like to edit this page you'll find it located at:

+ application/views/welcome_message.php + +

The corresponding controller for this page is found at:

+ application/controllers/Welcome.php + +

If you are exploring CodeIgniter for the very first time, you should start by reading the User Guide.

+
+ +

Page rendered in {elapsed_time} seconds. ' . CI_VERSION . '' : '' ?>

+
+ + + diff --git a/ci/assets/style.css b/ci/assets/style.css new file mode 100644 index 0000000..df6266e --- /dev/null +++ b/ci/assets/style.css @@ -0,0 +1,20 @@ +section.list +{ + display : flex; + justify-content : space-between; + flex-wrap:wrap; +} +section.list > div +{ +width : 30%; +} +section.list img { + display:inline-block; + +} +.short-text { + overflow: hidden; + white-space: nowrap; + text-overflow: ellipsis; +} + diff --git a/ci/composer.json b/ci/composer.json new file mode 100644 index 0000000..01e65f4 --- /dev/null +++ b/ci/composer.json @@ -0,0 +1,35 @@ +{ + "description": "The CodeIgniter framework", + "name": "codeigniter/framework", + "type": "project", + "homepage": "https://codeigniter.com", + "license": "MIT", + "support": { + "forum": "http://forum.codeigniter.com/", + "wiki": "https://github.com/bcit-ci/CodeIgniter/wiki", + "slack": "https://codeigniterchat.slack.com", + "source": "https://github.com/bcit-ci/CodeIgniter" + }, + "require": { + "php": ">=5.3.7" + }, + "suggest": { + "paragonie/random_compat": "Provides better randomness in PHP 5.x" + }, + "scripts": { + "test:coverage": [ + "@putenv XDEBUG_MODE=coverage", + "phpunit --color=always --coverage-text --configuration tests/travis/sqlite.phpunit.xml" + ], + "post-install-cmd": [ + "sed -i s/name{0}/name[0]/ vendor/mikey179/vfsstream/src/main/php/org/bovigo/vfs/vfsStream.php" + ], + "post-update-cmd": [ + "sed -i s/name{0}/name[0]/ vendor/mikey179/vfsstream/src/main/php/org/bovigo/vfs/vfsStream.php" + ] + }, + "require-dev": { + "mikey179/vfsstream": "1.6.*", + "phpunit/phpunit": "4.* || 5.* || 9.*" + } +} diff --git a/ci/index.php b/ci/index.php new file mode 100644 index 0000000..11f8c62 --- /dev/null +++ b/ci/index.php @@ -0,0 +1,315 @@ +=')) + { + error_reporting(E_ALL & ~E_NOTICE & ~E_DEPRECATED & ~E_STRICT & ~E_USER_NOTICE & ~E_USER_DEPRECATED); + } + else + { + error_reporting(E_ALL & ~E_NOTICE & ~E_STRICT & ~E_USER_NOTICE); + } + break; + + default: + header('HTTP/1.1 503 Service Unavailable.', TRUE, 503); + echo 'The application environment is not set correctly.'; + exit(1); // EXIT_ERROR +} + +/* + *--------------------------------------------------------------- + * SYSTEM DIRECTORY NAME + *--------------------------------------------------------------- + * + * This variable must contain the name of your "system" directory. + * Set the path if it is not in the same directory as this file. + */ + $system_path = 'system'; + +/* + *--------------------------------------------------------------- + * APPLICATION DIRECTORY NAME + *--------------------------------------------------------------- + * + * If you want this front controller to use a different "application" + * directory than the default one you can set its name here. The directory + * can also be renamed or relocated anywhere on your server. If you do, + * use an absolute (full) server path. + * For more info please see the user guide: + * + * https://codeigniter.com/userguide3/general/managing_apps.html + * + * NO TRAILING SLASH! + */ + $application_folder = 'application'; + +/* + *--------------------------------------------------------------- + * VIEW DIRECTORY NAME + *--------------------------------------------------------------- + * + * If you want to move the view directory out of the application + * directory, set the path to it here. The directory can be renamed + * and relocated anywhere on your server. If blank, it will default + * to the standard location inside your application directory. + * If you do move this, use an absolute (full) server path. + * + * NO TRAILING SLASH! + */ + $view_folder = ''; + + +/* + * -------------------------------------------------------------------- + * DEFAULT CONTROLLER + * -------------------------------------------------------------------- + * + * Normally you will set your default controller in the routes.php file. + * You can, however, force a custom routing by hard-coding a + * specific controller class/function here. For most applications, you + * WILL NOT set your routing here, but it's an option for those + * special instances where you might want to override the standard + * routing in a specific front controller that shares a common CI installation. + * + * IMPORTANT: If you set the routing here, NO OTHER controller will be + * callable. In essence, this preference limits your application to ONE + * specific controller. Leave the function name blank if you need + * to call functions dynamically via the URI. + * + * Un-comment the $routing array below to use this feature + */ + // The directory name, relative to the "controllers" directory. Leave blank + // if your controller is not in a sub-directory within the "controllers" one + // $routing['directory'] = ''; + + // The controller class file name. Example: mycontroller + // $routing['controller'] = ''; + + // The controller function you wish to be called. + // $routing['function'] = ''; + + +/* + * ------------------------------------------------------------------- + * CUSTOM CONFIG VALUES + * ------------------------------------------------------------------- + * + * The $assign_to_config array below will be passed dynamically to the + * config class when initialized. This allows you to set custom config + * items or override any default config values found in the config.php file. + * This can be handy as it permits you to share one application between + * multiple front controller files, with each file containing different + * config values. + * + * Un-comment the $assign_to_config array below to use this feature + */ + // $assign_to_config['name_of_config_item'] = 'value of config item'; + + + +// -------------------------------------------------------------------- +// END OF USER CONFIGURABLE SETTINGS. DO NOT EDIT BELOW THIS LINE +// -------------------------------------------------------------------- + +/* + * --------------------------------------------------------------- + * Resolve the system path for increased reliability + * --------------------------------------------------------------- + */ + + // Set the current directory correctly for CLI requests + if (defined('STDIN')) + { + chdir(dirname(__FILE__)); + } + + if (($_temp = realpath($system_path)) !== FALSE) + { + $system_path = $_temp.DIRECTORY_SEPARATOR; + } + else + { + // Ensure there's a trailing slash + $system_path = strtr( + rtrim($system_path, '/\\'), + '/\\', + DIRECTORY_SEPARATOR.DIRECTORY_SEPARATOR + ).DIRECTORY_SEPARATOR; + } + + // Is the system path correct? + if ( ! is_dir($system_path)) + { + header('HTTP/1.1 503 Service Unavailable.', TRUE, 503); + echo 'Your system folder path does not appear to be set correctly. Please open the following file and correct this: '.pathinfo(__FILE__, PATHINFO_BASENAME); + exit(3); // EXIT_CONFIG + } + +/* + * ------------------------------------------------------------------- + * Now that we know the path, set the main path constants + * ------------------------------------------------------------------- + */ + // The name of THIS file + define('SELF', pathinfo(__FILE__, PATHINFO_BASENAME)); + + // Path to the system directory + define('BASEPATH', $system_path); + + // Path to the front controller (this file) directory + define('FCPATH', dirname(__FILE__).DIRECTORY_SEPARATOR); + + // Name of the "system" directory + define('SYSDIR', basename(BASEPATH)); + + // The path to the "application" directory + if (is_dir($application_folder)) + { + if (($_temp = realpath($application_folder)) !== FALSE) + { + $application_folder = $_temp; + } + else + { + $application_folder = strtr( + rtrim($application_folder, '/\\'), + '/\\', + DIRECTORY_SEPARATOR.DIRECTORY_SEPARATOR + ); + } + } + elseif (is_dir(BASEPATH.$application_folder.DIRECTORY_SEPARATOR)) + { + $application_folder = BASEPATH.strtr( + trim($application_folder, '/\\'), + '/\\', + DIRECTORY_SEPARATOR.DIRECTORY_SEPARATOR + ); + } + else + { + header('HTTP/1.1 503 Service Unavailable.', TRUE, 503); + echo 'Your application folder path does not appear to be set correctly. Please open the following file and correct this: '.SELF; + exit(3); // EXIT_CONFIG + } + + define('APPPATH', $application_folder.DIRECTORY_SEPARATOR); + + // The path to the "views" directory + if ( ! isset($view_folder[0]) && is_dir(APPPATH.'views'.DIRECTORY_SEPARATOR)) + { + $view_folder = APPPATH.'views'; + } + elseif (is_dir($view_folder)) + { + if (($_temp = realpath($view_folder)) !== FALSE) + { + $view_folder = $_temp; + } + else + { + $view_folder = strtr( + rtrim($view_folder, '/\\'), + '/\\', + DIRECTORY_SEPARATOR.DIRECTORY_SEPARATOR + ); + } + } + elseif (is_dir(APPPATH.$view_folder.DIRECTORY_SEPARATOR)) + { + $view_folder = APPPATH.strtr( + trim($view_folder, '/\\'), + '/\\', + DIRECTORY_SEPARATOR.DIRECTORY_SEPARATOR + ); + } + else + { + header('HTTP/1.1 503 Service Unavailable.', TRUE, 503); + echo 'Your view folder path does not appear to be set correctly. Please open the following file and correct this: '.SELF; + exit(3); // EXIT_CONFIG + } + + define('VIEWPATH', $view_folder.DIRECTORY_SEPARATOR); + +/* + * -------------------------------------------------------------------- + * LOAD THE BOOTSTRAP FILE + * -------------------------------------------------------------------- + * + * And away we go... + */ +require_once BASEPATH.'core/CodeIgniter.php'; diff --git a/ci/license.txt b/ci/license.txt new file mode 100644 index 0000000..82be622 --- /dev/null +++ b/ci/license.txt @@ -0,0 +1,21 @@ +The MIT License (MIT) + +Copyright (c) 2019 - 2022, CodeIgniter Foundation + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. diff --git a/ci/readme.rst b/ci/readme.rst new file mode 100644 index 0000000..63a55c3 --- /dev/null +++ b/ci/readme.rst @@ -0,0 +1,71 @@ +################### +What is CodeIgniter +################### + +CodeIgniter is an Application Development Framework - a toolkit - for people +who build web sites using PHP. Its goal is to enable you to develop projects +much faster than you could if you were writing code from scratch, by providing +a rich set of libraries for commonly needed tasks, as well as a simple +interface and logical structure to access these libraries. CodeIgniter lets +you creatively focus on your project by minimizing the amount of code needed +for a given task. + +******************* +Release Information +******************* + +This repo contains in-development code for future releases. To download the +latest stable release please visit the `CodeIgniter Downloads +`_ page. + +************************** +Changelog and New Features +************************** + +You can find a list of all changes for each release in the `user +guide change log `_. + +******************* +Server Requirements +******************* + +PHP version 5.6 or newer is recommended. + +It should work on 5.3.7 as well, but we strongly advise you NOT to run +such old versions of PHP, because of potential security and performance +issues, as well as missing features. + +************ +Installation +************ + +Please see the `installation section `_ +of the CodeIgniter User Guide. + +******* +License +******* + +Please see the `license +agreement `_. + +********* +Resources +********* + +- `User Guide `_ +- `Contributing Guide `_ +- `Language File Translations `_ +- `Community Forums `_ +- `Community Wiki `_ +- `Community Slack Channel `_ + +Report security issues to our `Security Panel `_ +or via our `page on HackerOne `_, thank you. + +*************** +Acknowledgement +*************** + +The CodeIgniter team would like to thank EllisLab, all the +contributors to the CodeIgniter project and you, the CodeIgniter user. diff --git a/ci/system/.htaccess b/ci/system/.htaccess new file mode 100644 index 0000000..97c65d2 --- /dev/null +++ b/ci/system/.htaccess @@ -0,0 +1,6 @@ + + Require all denied + + + Deny from all + \ No newline at end of file diff --git a/ci/system/core/Benchmark.php b/ci/system/core/Benchmark.php new file mode 100644 index 0000000..20ac2f5 --- /dev/null +++ b/ci/system/core/Benchmark.php @@ -0,0 +1,134 @@ +marker[$name] = microtime(TRUE); + } + + // -------------------------------------------------------------------- + + /** + * Elapsed time + * + * Calculates the time difference between two marked points. + * + * If the first parameter is empty this function instead returns the + * {elapsed_time} pseudo-variable. This permits the full system + * execution time to be shown in a template. The output class will + * swap the real value for this variable. + * + * @param string $point1 A particular marked point + * @param string $point2 A particular marked point + * @param int $decimals Number of decimal places + * + * @return string Calculated elapsed time on success, + * an '{elapsed_string}' if $point1 is empty + * or an empty string if $point1 is not found. + */ + public function elapsed_time($point1 = '', $point2 = '', $decimals = 4) + { + if ($point1 === '') + { + return '{elapsed_time}'; + } + + if ( ! isset($this->marker[$point1])) + { + return ''; + } + + if ( ! isset($this->marker[$point2])) + { + $this->marker[$point2] = microtime(TRUE); + } + + return number_format($this->marker[$point2] - $this->marker[$point1], $decimals); + } + + // -------------------------------------------------------------------- + + /** + * Memory Usage + * + * Simply returns the {memory_usage} marker. + * + * This permits it to be put it anywhere in a template + * without the memory being calculated until the end. + * The output class will swap the real value for this variable. + * + * @return string '{memory_usage}' + */ + public function memory_usage() + { + return '{memory_usage}'; + } + +} diff --git a/ci/system/core/CodeIgniter.php b/ci/system/core/CodeIgniter.php new file mode 100644 index 0000000..56826dc --- /dev/null +++ b/ci/system/core/CodeIgniter.php @@ -0,0 +1,560 @@ + '_ENV', 'G' => '_GET', 'P' => '_POST', 'C' => '_COOKIE', 'S' => '_SERVER') as $key => $superglobal) + { + if (strpos($_registered, $key) === FALSE) + { + continue; + } + + foreach (array_keys($$superglobal) as $var) + { + if (isset($GLOBALS[$var]) && ! in_array($var, $_protected, TRUE)) + { + $GLOBALS[$var] = NULL; + } + } + } + } +} + + +/* + * ------------------------------------------------------ + * Define a custom error handler so we can log PHP errors + * ------------------------------------------------------ + */ + set_error_handler('_error_handler'); + set_exception_handler('_exception_handler'); + register_shutdown_function('_shutdown_handler'); + +/* + * ------------------------------------------------------ + * Set the subclass_prefix + * ------------------------------------------------------ + * + * Normally the "subclass_prefix" is set in the config file. + * The subclass prefix allows CI to know if a core class is + * being extended via a library in the local application + * "libraries" folder. Since CI allows config items to be + * overridden via data set in the main index.php file, + * before proceeding we need to know if a subclass_prefix + * override exists. If so, we will set this value now, + * before any classes are loaded + * Note: Since the config file data is cached it doesn't + * hurt to load it here. + */ + if ( ! empty($assign_to_config['subclass_prefix'])) + { + get_config(array('subclass_prefix' => $assign_to_config['subclass_prefix'])); + } + +/* + * ------------------------------------------------------ + * Should we use a Composer autoloader? + * ------------------------------------------------------ + */ + if ($composer_autoload = config_item('composer_autoload')) + { + if ($composer_autoload === TRUE) + { + file_exists(APPPATH.'vendor/autoload.php') + ? require_once(APPPATH.'vendor/autoload.php') + : log_message('error', '$config[\'composer_autoload\'] is set to TRUE but '.APPPATH.'vendor/autoload.php was not found.'); + } + elseif (file_exists($composer_autoload)) + { + require_once($composer_autoload); + } + else + { + log_message('error', 'Could not find the specified $config[\'composer_autoload\'] path: '.$composer_autoload); + } + } + +/* + * ------------------------------------------------------ + * Start the timer... tick tock tick tock... + * ------------------------------------------------------ + */ + $BM =& load_class('Benchmark', 'core'); + $BM->mark('total_execution_time_start'); + $BM->mark('loading_time:_base_classes_start'); + +/* + * ------------------------------------------------------ + * Instantiate the hooks class + * ------------------------------------------------------ + */ + $EXT =& load_class('Hooks', 'core'); + +/* + * ------------------------------------------------------ + * Is there a "pre_system" hook? + * ------------------------------------------------------ + */ + $EXT->call_hook('pre_system'); + +/* + * ------------------------------------------------------ + * Instantiate the config class + * ------------------------------------------------------ + * + * Note: It is important that Config is loaded first as + * most other classes depend on it either directly or by + * depending on another class that uses it. + * + */ + $CFG =& load_class('Config', 'core'); + + // Do we have any manually set config items in the index.php file? + if (isset($assign_to_config) && is_array($assign_to_config)) + { + foreach ($assign_to_config as $key => $value) + { + $CFG->set_item($key, $value); + } + } + +/* + * ------------------------------------------------------ + * Important charset-related stuff + * ------------------------------------------------------ + * + * Configure mbstring and/or iconv if they are enabled + * and set MB_ENABLED and ICONV_ENABLED constants, so + * that we don't repeatedly do extension_loaded() or + * function_exists() calls. + * + * Note: UTF-8 class depends on this. It used to be done + * in it's constructor, but it's _not_ class-specific. + * + */ + $charset = strtoupper(config_item('charset')); + ini_set('default_charset', $charset); + + if (extension_loaded('mbstring')) + { + define('MB_ENABLED', TRUE); + // mbstring.internal_encoding is deprecated starting with PHP 5.6 + // and it's usage triggers E_DEPRECATED messages. + @ini_set('mbstring.internal_encoding', $charset); + // This is required for mb_convert_encoding() to strip invalid characters. + // That's utilized by CI_Utf8, but it's also done for consistency with iconv. + mb_substitute_character('none'); + } + else + { + define('MB_ENABLED', FALSE); + } + + // There's an ICONV_IMPL constant, but the PHP manual says that using + // iconv's predefined constants is "strongly discouraged". + if (extension_loaded('iconv')) + { + define('ICONV_ENABLED', TRUE); + // iconv.internal_encoding is deprecated starting with PHP 5.6 + // and it's usage triggers E_DEPRECATED messages. + @ini_set('iconv.internal_encoding', $charset); + } + else + { + define('ICONV_ENABLED', FALSE); + } + + if (is_php('5.6')) + { + ini_set('php.internal_encoding', $charset); + } + +/* + * ------------------------------------------------------ + * Load compatibility features + * ------------------------------------------------------ + */ + + require_once(BASEPATH.'core/compat/mbstring.php'); + require_once(BASEPATH.'core/compat/hash.php'); + require_once(BASEPATH.'core/compat/password.php'); + require_once(BASEPATH.'core/compat/standard.php'); + +/* + * ------------------------------------------------------ + * Instantiate the UTF-8 class + * ------------------------------------------------------ + */ + $UNI =& load_class('Utf8', 'core'); + +/* + * ------------------------------------------------------ + * Instantiate the URI class + * ------------------------------------------------------ + */ + $URI =& load_class('URI', 'core'); + +/* + * ------------------------------------------------------ + * Instantiate the routing class and set the routing + * ------------------------------------------------------ + */ + $RTR =& load_class('Router', 'core', isset($routing) ? $routing : NULL); + +/* + * ------------------------------------------------------ + * Instantiate the output class + * ------------------------------------------------------ + */ + $OUT =& load_class('Output', 'core'); + +/* + * ------------------------------------------------------ + * Is there a valid cache file? If so, we're done... + * ------------------------------------------------------ + */ + if ($EXT->call_hook('cache_override') === FALSE && $OUT->_display_cache($CFG, $URI) === TRUE) + { + exit; + } + +/* + * ----------------------------------------------------- + * Load the security class for xss and csrf support + * ----------------------------------------------------- + */ + $SEC =& load_class('Security', 'core'); + +/* + * ------------------------------------------------------ + * Load the Input class and sanitize globals + * ------------------------------------------------------ + */ + $IN =& load_class('Input', 'core'); + +/* + * ------------------------------------------------------ + * Load the Language class + * ------------------------------------------------------ + */ + $LANG =& load_class('Lang', 'core'); + +/* + * ------------------------------------------------------ + * Load the app controller and local controller + * ------------------------------------------------------ + * + */ + // Load the base controller class + require_once BASEPATH.'core/Controller.php'; + + /** + * Reference to the CI_Controller method. + * + * Returns current CI instance object + * + * @return CI_Controller + */ + function &get_instance() + { + return CI_Controller::get_instance(); + } + + if (file_exists(APPPATH.'core/'.$CFG->config['subclass_prefix'].'Controller.php')) + { + require_once APPPATH.'core/'.$CFG->config['subclass_prefix'].'Controller.php'; + } + + // Set a mark point for benchmarking + $BM->mark('loading_time:_base_classes_end'); + +/* + * ------------------------------------------------------ + * Sanity checks + * ------------------------------------------------------ + * + * The Router class has already validated the request, + * leaving us with 3 options here: + * + * 1) an empty class name, if we reached the default + * controller, but it didn't exist; + * 2) a query string which doesn't go through a + * file_exists() check + * 3) a regular request for a non-existing page + * + * We handle all of these as a 404 error. + * + * Furthermore, none of the methods in the app controller + * or the loader class can be called via the URI, nor can + * controller methods that begin with an underscore. + */ + + $e404 = FALSE; + $class = ucfirst($RTR->class); + $method = $RTR->method; + + if (empty($class) OR ! file_exists(APPPATH.'controllers/'.$RTR->directory.$class.'.php')) + { + $e404 = TRUE; + } + else + { + require_once(APPPATH.'controllers/'.$RTR->directory.$class.'.php'); + + if ( ! class_exists($class, FALSE) OR $method[0] === '_' OR method_exists('CI_Controller', $method)) + { + $e404 = TRUE; + } + elseif (method_exists($class, '_remap')) + { + $params = array($method, array_slice($URI->rsegments, 2)); + $method = '_remap'; + } + elseif ( ! method_exists($class, $method)) + { + $e404 = TRUE; + } + /** + * DO NOT CHANGE THIS, NOTHING ELSE WORKS! + * + * - method_exists() returns true for non-public methods, which passes the previous elseif + * - is_callable() returns false for PHP 4-style constructors, even if there's a __construct() + * - method_exists($class, '__construct') won't work because CI_Controller::__construct() is inherited + * - People will only complain if this doesn't work, even though it is documented that it shouldn't. + * + * ReflectionMethod::isConstructor() is the ONLY reliable check, + * knowing which method will be executed as a constructor. + */ + else + { + $reflection = new ReflectionMethod($class, $method); + if ( ! $reflection->isPublic() OR $reflection->isConstructor()) + { + $e404 = TRUE; + } + } + } + + if ($e404) + { + if ( ! empty($RTR->routes['404_override'])) + { + if (sscanf($RTR->routes['404_override'], '%[^/]/%s', $error_class, $error_method) !== 2) + { + $error_method = 'index'; + } + + $error_class = ucfirst($error_class); + + if ( ! class_exists($error_class, FALSE)) + { + if (file_exists(APPPATH.'controllers/'.$RTR->directory.$error_class.'.php')) + { + require_once(APPPATH.'controllers/'.$RTR->directory.$error_class.'.php'); + $e404 = ! class_exists($error_class, FALSE); + } + // Were we in a directory? If so, check for a global override + elseif ( ! empty($RTR->directory) && file_exists(APPPATH.'controllers/'.$error_class.'.php')) + { + require_once(APPPATH.'controllers/'.$error_class.'.php'); + if (($e404 = ! class_exists($error_class, FALSE)) === FALSE) + { + $RTR->directory = ''; + } + } + } + else + { + $e404 = FALSE; + } + } + + // Did we reset the $e404 flag? If so, set the rsegments, starting from index 1 + if ( ! $e404) + { + $class = $error_class; + $method = $error_method; + + $URI->rsegments = array( + 1 => $class, + 2 => $method + ); + } + else + { + show_404($RTR->directory.$class.'/'.$method); + } + } + + if ($method !== '_remap') + { + $params = array_slice($URI->rsegments, 2); + } + +/* + * ------------------------------------------------------ + * Is there a "pre_controller" hook? + * ------------------------------------------------------ + */ + $EXT->call_hook('pre_controller'); + +/* + * ------------------------------------------------------ + * Instantiate the requested controller + * ------------------------------------------------------ + */ + // Mark a start point so we can benchmark the controller + $BM->mark('controller_execution_time_( '.$class.' / '.$method.' )_start'); + + $CI = new $class(); + +/* + * ------------------------------------------------------ + * Is there a "post_controller_constructor" hook? + * ------------------------------------------------------ + */ + $EXT->call_hook('post_controller_constructor'); + +/* + * ------------------------------------------------------ + * Call the requested method + * ------------------------------------------------------ + */ + call_user_func_array(array(&$CI, $method), $params); + + // Mark a benchmark end point + $BM->mark('controller_execution_time_( '.$class.' / '.$method.' )_end'); + +/* + * ------------------------------------------------------ + * Is there a "post_controller" hook? + * ------------------------------------------------------ + */ + $EXT->call_hook('post_controller'); + +/* + * ------------------------------------------------------ + * Send the final rendered output to the browser + * ------------------------------------------------------ + */ + if ($EXT->call_hook('display_override') === FALSE) + { + $OUT->_display(); + } + +/* + * ------------------------------------------------------ + * Is there a "post_system" hook? + * ------------------------------------------------------ + */ + $EXT->call_hook('post_system'); diff --git a/ci/system/core/Common.php b/ci/system/core/Common.php new file mode 100644 index 0000000..a56cb14 --- /dev/null +++ b/ci/system/core/Common.php @@ -0,0 +1,849 @@ +='); + } + + return $_is_php[$version]; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('is_really_writable')) +{ + /** + * Tests for file writability + * + * is_writable() returns TRUE on Windows servers when you really can't write to + * the file, based on the read-only attribute. is_writable() is also unreliable + * on Unix servers if safe_mode is on. + * + * @link https://bugs.php.net/bug.php?id=54709 + * @param string + * @return bool + */ + function is_really_writable($file) + { + // If we're on a Unix server with safe_mode off we call is_writable + if (DIRECTORY_SEPARATOR === '/' && (is_php('5.4') OR ! ini_get('safe_mode'))) + { + return is_writable($file); + } + + /* For Windows servers and safe_mode "on" installations we'll actually + * write a file then read it. Bah... + */ + if (is_dir($file)) + { + $file = rtrim($file, '/').'/'.md5(mt_rand()); + if (($fp = @fopen($file, 'ab')) === FALSE) + { + return FALSE; + } + + fclose($fp); + @chmod($file, 0777); + @unlink($file); + return TRUE; + } + elseif ( ! is_file($file) OR ($fp = @fopen($file, 'ab')) === FALSE) + { + return FALSE; + } + + fclose($fp); + return TRUE; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('load_class')) +{ + /** + * Class registry + * + * This function acts as a singleton. If the requested class does not + * exist it is instantiated and set to a static variable. If it has + * previously been instantiated the variable is returned. + * + * @param string the class name being requested + * @param string the directory where the class should be found + * @param mixed an optional argument to pass to the class constructor + * @return object + */ + function &load_class($class, $directory = 'libraries', $param = NULL) + { + static $_classes = array(); + + // Does the class exist? If so, we're done... + if (isset($_classes[$class])) + { + return $_classes[$class]; + } + + $name = FALSE; + + // Look for the class first in the local application/libraries folder + // then in the native system/libraries folder + foreach (array(APPPATH, BASEPATH) as $path) + { + if (file_exists($path.$directory.'/'.$class.'.php')) + { + $name = 'CI_'.$class; + + if (class_exists($name, FALSE) === FALSE) + { + require_once($path.$directory.'/'.$class.'.php'); + } + + break; + } + } + + // Is the request a class extension? If so we load it too + if (file_exists(APPPATH.$directory.'/'.config_item('subclass_prefix').$class.'.php')) + { + $name = config_item('subclass_prefix').$class; + + if (class_exists($name, FALSE) === FALSE) + { + require_once(APPPATH.$directory.'/'.$name.'.php'); + } + } + + // Did we find the class? + if ($name === FALSE) + { + // Note: We use exit() rather than show_error() in order to avoid a + // self-referencing loop with the Exceptions class + set_status_header(503); + echo 'Unable to locate the specified class: '.$class.'.php'; + exit(5); // EXIT_UNK_CLASS + } + + // Keep track of what we just loaded + is_loaded($class); + + $_classes[$class] = isset($param) + ? new $name($param) + : new $name(); + return $_classes[$class]; + } +} + +// -------------------------------------------------------------------- + +if ( ! function_exists('is_loaded')) +{ + /** + * Keeps track of which libraries have been loaded. This function is + * called by the load_class() function above + * + * @param string + * @return array + */ + function &is_loaded($class = '') + { + static $_is_loaded = array(); + + if ($class !== '') + { + $_is_loaded[strtolower($class)] = $class; + } + + return $_is_loaded; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('get_config')) +{ + /** + * Loads the main config.php file + * + * This function lets us grab the config file even if the Config class + * hasn't been instantiated yet + * + * @param array + * @return array + */ + function &get_config(Array $replace = array()) + { + static $config; + + if (empty($config)) + { + $file_path = APPPATH.'config/config.php'; + $found = FALSE; + if (file_exists($file_path)) + { + $found = TRUE; + require($file_path); + } + + // Is the config file in the environment folder? + if (file_exists($file_path = APPPATH.'config/'.ENVIRONMENT.'/config.php')) + { + require($file_path); + } + elseif ( ! $found) + { + set_status_header(503); + echo 'The configuration file does not exist.'; + exit(3); // EXIT_CONFIG + } + + // Does the $config array exist in the file? + if ( ! isset($config) OR ! is_array($config)) + { + set_status_header(503); + echo 'Your config file does not appear to be formatted correctly.'; + exit(3); // EXIT_CONFIG + } + } + + // Are any values being dynamically added or replaced? + foreach ($replace as $key => $val) + { + $config[$key] = $val; + } + + return $config; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('config_item')) +{ + /** + * Returns the specified config item + * + * @param string + * @return mixed + */ + function config_item($item) + { + static $_config; + + if (empty($_config)) + { + // references cannot be directly assigned to static variables, so we use an array + $_config[0] =& get_config(); + } + + return isset($_config[0][$item]) ? $_config[0][$item] : NULL; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('get_mimes')) +{ + /** + * Returns the MIME types array from config/mimes.php + * + * @return array + */ + function &get_mimes() + { + static $_mimes; + + if (empty($_mimes)) + { + $_mimes = file_exists(APPPATH.'config/mimes.php') + ? include(APPPATH.'config/mimes.php') + : array(); + + if (file_exists(APPPATH.'config/'.ENVIRONMENT.'/mimes.php')) + { + $_mimes = array_merge($_mimes, include(APPPATH.'config/'.ENVIRONMENT.'/mimes.php')); + } + } + + return $_mimes; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('is_https')) +{ + /** + * Is HTTPS? + * + * Determines if the application is accessed via an encrypted + * (HTTPS) connection. + * + * @return bool + */ + function is_https() + { + if ( ! empty($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) !== 'off') + { + return TRUE; + } + elseif (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && strtolower($_SERVER['HTTP_X_FORWARDED_PROTO']) === 'https') + { + return TRUE; + } + elseif ( ! empty($_SERVER['HTTP_FRONT_END_HTTPS']) && strtolower($_SERVER['HTTP_FRONT_END_HTTPS']) !== 'off') + { + return TRUE; + } + + return FALSE; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('is_cli')) +{ + + /** + * Is CLI? + * + * Test to see if a request was made from the command line. + * + * @return bool + */ + function is_cli() + { + return (PHP_SAPI === 'cli' OR defined('STDIN')); + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('show_error')) +{ + /** + * Error Handler + * + * This function lets us invoke the exception class and + * display errors using the standard error template located + * in application/views/errors/error_general.php + * This function will send the error page directly to the + * browser and exit. + * + * @param string + * @param int + * @param string + * @return void + */ + function show_error($message, $status_code = 500, $heading = 'An Error Was Encountered') + { + $status_code = abs($status_code); + if ($status_code < 100) + { + $exit_status = $status_code + 9; // 9 is EXIT__AUTO_MIN + $status_code = 500; + } + else + { + $exit_status = 1; // EXIT_ERROR + } + + $_error =& load_class('Exceptions', 'core'); + echo $_error->show_error($heading, $message, 'error_general', $status_code); + exit($exit_status); + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('show_404')) +{ + /** + * 404 Page Handler + * + * This function is similar to the show_error() function above + * However, instead of the standard error template it displays + * 404 errors. + * + * @param string + * @param bool + * @return void + */ + function show_404($page = '', $log_error = TRUE) + { + $_error =& load_class('Exceptions', 'core'); + $_error->show_404($page, $log_error); + exit(4); // EXIT_UNKNOWN_FILE + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('log_message')) +{ + /** + * Error Logging Interface + * + * We use this as a simple mechanism to access the logging + * class and send messages to be logged. + * + * @param string the error level: 'error', 'debug' or 'info' + * @param string the error message + * @return void + */ + function log_message($level, $message) + { + static $_log; + + if ($_log === NULL) + { + // references cannot be directly assigned to static variables, so we use an array + $_log[0] =& load_class('Log', 'core'); + } + + $_log[0]->write_log($level, $message); + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('set_status_header')) +{ + /** + * Set HTTP Status Header + * + * @param int the status code + * @param string + * @return void + */ + function set_status_header($code = 200, $text = '') + { + if (is_cli()) + { + return; + } + + if (empty($code) OR ! is_numeric($code)) + { + show_error('Status codes must be numeric', 500); + } + + if (empty($text)) + { + is_int($code) OR $code = (int) $code; + $stati = array( + 100 => 'Continue', + 101 => 'Switching Protocols', + + 200 => 'OK', + 201 => 'Created', + 202 => 'Accepted', + 203 => 'Non-Authoritative Information', + 204 => 'No Content', + 205 => 'Reset Content', + 206 => 'Partial Content', + + 300 => 'Multiple Choices', + 301 => 'Moved Permanently', + 302 => 'Found', + 303 => 'See Other', + 304 => 'Not Modified', + 305 => 'Use Proxy', + 307 => 'Temporary Redirect', + + 400 => 'Bad Request', + 401 => 'Unauthorized', + 402 => 'Payment Required', + 403 => 'Forbidden', + 404 => 'Not Found', + 405 => 'Method Not Allowed', + 406 => 'Not Acceptable', + 407 => 'Proxy Authentication Required', + 408 => 'Request Timeout', + 409 => 'Conflict', + 410 => 'Gone', + 411 => 'Length Required', + 412 => 'Precondition Failed', + 413 => 'Request Entity Too Large', + 414 => 'Request-URI Too Long', + 415 => 'Unsupported Media Type', + 416 => 'Requested Range Not Satisfiable', + 417 => 'Expectation Failed', + 422 => 'Unprocessable Entity', + 426 => 'Upgrade Required', + 428 => 'Precondition Required', + 429 => 'Too Many Requests', + 431 => 'Request Header Fields Too Large', + + 500 => 'Internal Server Error', + 501 => 'Not Implemented', + 502 => 'Bad Gateway', + 503 => 'Service Unavailable', + 504 => 'Gateway Timeout', + 505 => 'HTTP Version Not Supported', + 511 => 'Network Authentication Required', + ); + + if (isset($stati[$code])) + { + $text = $stati[$code]; + } + else + { + show_error('No status text available. Please check your status code number or supply your own message text.', 500); + } + } + + if (strpos(PHP_SAPI, 'cgi') === 0) + { + header('Status: '.$code.' '.$text, TRUE); + return; + } + + $server_protocol = (isset($_SERVER['SERVER_PROTOCOL']) && in_array($_SERVER['SERVER_PROTOCOL'], array('HTTP/1.0', 'HTTP/1.1', 'HTTP/2', 'HTTP/2.0'), TRUE)) + ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.1'; + header($server_protocol.' '.$code.' '.$text, TRUE, $code); + } +} + +// -------------------------------------------------------------------- + +if ( ! function_exists('_error_handler')) +{ + /** + * Error Handler + * + * This is the custom error handler that is declared at the (relative) + * top of CodeIgniter.php. The main reason we use this is to permit + * PHP errors to be logged in our own log files since the user may + * not have access to server logs. Since this function effectively + * intercepts PHP errors, however, we also need to display errors + * based on the current error_reporting level. + * We do that with the use of a PHP error template. + * + * @param int $severity + * @param string $message + * @param string $filepath + * @param int $line + * @return void + */ + function _error_handler($severity, $message, $filepath, $line) + { + $is_error = (((E_ERROR | E_PARSE | E_COMPILE_ERROR | E_CORE_ERROR | E_USER_ERROR) & $severity) === $severity); + + // When an error occurred, set the status header to '500 Internal Server Error' + // to indicate to the client something went wrong. + // This can't be done within the $_error->show_php_error method because + // it is only called when the display_errors flag is set (which isn't usually + // the case in a production environment) or when errors are ignored because + // they are above the error_reporting threshold. + if ($is_error) + { + set_status_header(500); + } + + // Should we ignore the error? We'll get the current error_reporting + // level and add its bits with the severity bits to find out. + if (($severity & error_reporting()) !== $severity) + { + return; + } + + $_error =& load_class('Exceptions', 'core'); + $_error->log_exception($severity, $message, $filepath, $line); + + // Should we display the error? + if (str_ireplace(array('off', 'none', 'no', 'false', 'null'), '', ini_get('display_errors'))) + { + $_error->show_php_error($severity, $message, $filepath, $line); + } + + // If the error is fatal, the execution of the script should be stopped because + // errors can't be recovered from. Halting the script conforms with PHP's + // default error handling. See http://www.php.net/manual/en/errorfunc.constants.php + if ($is_error) + { + exit(1); // EXIT_ERROR + } + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('_exception_handler')) +{ + /** + * Exception Handler + * + * Sends uncaught exceptions to the logger and displays them + * only if display_errors is On so that they don't show up in + * production environments. + * + * @param Exception $exception + * @return void + */ + function _exception_handler($exception) + { + $_error =& load_class('Exceptions', 'core'); + $_error->log_exception('error', 'Exception: '.$exception->getMessage(), $exception->getFile(), $exception->getLine()); + + is_cli() OR set_status_header(500); + // Should we display the error? + if (str_ireplace(array('off', 'none', 'no', 'false', 'null'), '', ini_get('display_errors'))) + { + $_error->show_exception($exception); + } + + exit(1); // EXIT_ERROR + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('_shutdown_handler')) +{ + /** + * Shutdown Handler + * + * This is the shutdown handler that is declared at the top + * of CodeIgniter.php. The main reason we use this is to simulate + * a complete custom exception handler. + * + * E_STRICT is purposively neglected because such events may have + * been caught. Duplication or none? None is preferred for now. + * + * @link http://insomanic.me.uk/post/229851073/php-trick-catching-fatal-errors-e-error-with-a + * @return void + */ + function _shutdown_handler() + { + $last_error = error_get_last(); + if (isset($last_error) && + ($last_error['type'] & (E_ERROR | E_PARSE | E_CORE_ERROR | E_CORE_WARNING | E_COMPILE_ERROR | E_COMPILE_WARNING))) + { + _error_handler($last_error['type'], $last_error['message'], $last_error['file'], $last_error['line']); + } + } +} + +// -------------------------------------------------------------------- + +if ( ! function_exists('remove_invisible_characters')) +{ + /** + * Remove Invisible Characters + * + * This prevents sandwiching null characters + * between ascii characters, like Java\0script. + * + * @param string + * @param bool + * @return string + */ + function remove_invisible_characters($str, $url_encoded = TRUE) + { + $non_displayables = array(); + + // every control character except newline (dec 10), + // carriage return (dec 13) and horizontal tab (dec 09) + if ($url_encoded) + { + $non_displayables[] = '/%0[0-8bcef]/i'; // url encoded 00-08, 11, 12, 14, 15 + $non_displayables[] = '/%1[0-9a-f]/i'; // url encoded 16-31 + $non_displayables[] = '/%7f/i'; // url encoded 127 + } + + $non_displayables[] = '/[\x00-\x08\x0B\x0C\x0E-\x1F\x7F]+/S'; // 00-08, 11, 12, 14-31, 127 + + do + { + $str = preg_replace($non_displayables, '', $str, -1, $count); + } + while ($count); + + return $str; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('html_escape')) +{ + /** + * Returns HTML escaped variable. + * + * @param mixed $var The input string or array of strings to be escaped. + * @param bool $double_encode $double_encode set to FALSE prevents escaping twice. + * @return mixed The escaped string or array of strings as a result. + */ + function html_escape($var, $double_encode = TRUE) + { + if (empty($var)) + { + return $var; + } + + if (is_array($var)) + { + foreach (array_keys($var) as $key) + { + $var[$key] = html_escape($var[$key], $double_encode); + } + + return $var; + } + + return htmlspecialchars($var, ENT_QUOTES, config_item('charset'), $double_encode); + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('_stringify_attributes')) +{ + /** + * Stringify attributes for use in HTML tags. + * + * Helper function used to convert a string, array, or object + * of attributes to a string. + * + * @param mixed string, array, object + * @param bool + * @return string + */ + function _stringify_attributes($attributes, $js = FALSE) + { + if (empty($attributes)) + { + return NULL; + } + + if (is_string($attributes)) + { + return ' '.$attributes; + } + + $attributes = (array) $attributes; + + $atts = ''; + foreach ($attributes as $key => $val) + { + $atts .= ($js) ? $key.'='.$val.',' : ' '.$key.'="'.$val.'"'; + } + + return rtrim($atts, ','); + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('function_usable')) +{ + /** + * Function usable + * + * Executes a function_exists() check, and if the Suhosin PHP + * extension is loaded - checks whether the function that is + * checked might be disabled in there as well. + * + * This is useful as function_exists() will return FALSE for + * functions disabled via the *disable_functions* php.ini + * setting, but not for *suhosin.executor.func.blacklist* and + * *suhosin.executor.disable_eval*. These settings will just + * terminate script execution if a disabled function is executed. + * + * The above described behavior turned out to be a bug in Suhosin, + * but even though a fix was committed for 0.9.34 on 2012-02-12, + * that version is yet to be released. This function will therefore + * be just temporary, but would probably be kept for a few years. + * + * @link http://www.hardened-php.net/suhosin/ + * @param string $function_name Function to check for + * @return bool TRUE if the function exists and is safe to call, + * FALSE otherwise. + */ + function function_usable($function_name) + { + static $_suhosin_func_blacklist; + + if (function_exists($function_name)) + { + if ( ! isset($_suhosin_func_blacklist)) + { + $_suhosin_func_blacklist = extension_loaded('suhosin') + ? explode(',', trim(ini_get('suhosin.executor.func.blacklist'))) + : array(); + } + + return ! in_array($function_name, $_suhosin_func_blacklist, TRUE); + } + + return FALSE; + } +} diff --git a/ci/system/core/Config.php b/ci/system/core/Config.php new file mode 100644 index 0000000..2454a9d --- /dev/null +++ b/ci/system/core/Config.php @@ -0,0 +1,380 @@ +config =& get_config(); + + // Set the base_url automatically if none was provided + if (empty($this->config['base_url'])) + { + if (isset($_SERVER['SERVER_ADDR'])) + { + if (strpos($_SERVER['SERVER_ADDR'], ':') !== FALSE) + { + $server_addr = '['.$_SERVER['SERVER_ADDR'].']'; + } + else + { + $server_addr = $_SERVER['SERVER_ADDR']; + } + + $base_url = (is_https() ? 'https' : 'http').'://'.$server_addr + .substr($_SERVER['SCRIPT_NAME'], 0, strpos($_SERVER['SCRIPT_NAME'], basename($_SERVER['SCRIPT_FILENAME']))); + } + else + { + $base_url = 'http://localhost/'; + } + + $this->set_item('base_url', $base_url); + } + + log_message('info', 'Config Class Initialized'); + } + + // -------------------------------------------------------------------- + + /** + * Load Config File + * + * @param string $file Configuration file name + * @param bool $use_sections Whether configuration values should be loaded into their own section + * @param bool $fail_gracefully Whether to just return FALSE or display an error message + * @return bool TRUE if the file was loaded correctly or FALSE on failure + */ + public function load($file = '', $use_sections = FALSE, $fail_gracefully = FALSE) + { + $file = ($file === '') ? 'config' : str_replace('.php', '', $file); + $loaded = FALSE; + + foreach ($this->_config_paths as $path) + { + foreach (array($file, ENVIRONMENT.DIRECTORY_SEPARATOR.$file) as $location) + { + $file_path = $path.'config/'.$location.'.php'; + if (in_array($file_path, $this->is_loaded, TRUE)) + { + return TRUE; + } + + if ( ! file_exists($file_path)) + { + continue; + } + + include($file_path); + + if ( ! isset($config) OR ! is_array($config)) + { + if ($fail_gracefully === TRUE) + { + return FALSE; + } + + show_error('Your '.$file_path.' file does not appear to contain a valid configuration array.'); + } + + if ($use_sections === TRUE) + { + $this->config[$file] = isset($this->config[$file]) + ? array_merge($this->config[$file], $config) + : $config; + } + else + { + $this->config = array_merge($this->config, $config); + } + + $this->is_loaded[] = $file_path; + $config = NULL; + $loaded = TRUE; + log_message('debug', 'Config file loaded: '.$file_path); + } + } + + if ($loaded === TRUE) + { + return TRUE; + } + elseif ($fail_gracefully === TRUE) + { + return FALSE; + } + + show_error('The configuration file '.$file.'.php does not exist.'); + } + + // -------------------------------------------------------------------- + + /** + * Fetch a config file item + * + * @param string $item Config item name + * @param string $index Index name + * @return string|null The configuration item or NULL if the item doesn't exist + */ + public function item($item, $index = '') + { + if ($index == '') + { + return isset($this->config[$item]) ? $this->config[$item] : NULL; + } + + return isset($this->config[$index], $this->config[$index][$item]) ? $this->config[$index][$item] : NULL; + } + + // -------------------------------------------------------------------- + + /** + * Fetch a config file item with slash appended (if not empty) + * + * @param string $item Config item name + * @return string|null The configuration item or NULL if the item doesn't exist + */ + public function slash_item($item) + { + if ( ! isset($this->config[$item])) + { + return NULL; + } + elseif (trim($this->config[$item]) === '') + { + return ''; + } + + return rtrim($this->config[$item], '/').'/'; + } + + // -------------------------------------------------------------------- + + /** + * Site URL + * + * Returns base_url . index_page [. uri_string] + * + * @uses CI_Config::_uri_string() + * + * @param string|string[] $uri URI string or an array of segments + * @param string $protocol + * @return string + */ + public function site_url($uri = '', $protocol = NULL) + { + $base_url = $this->slash_item('base_url'); + + if (isset($protocol)) + { + // For protocol-relative links + if ($protocol === '') + { + $base_url = substr($base_url, strpos($base_url, '//')); + } + else + { + $base_url = $protocol.substr($base_url, strpos($base_url, '://')); + } + } + + if (empty($uri)) + { + return $base_url.$this->item('index_page'); + } + + $uri = $this->_uri_string($uri); + + if ($this->item('enable_query_strings') === FALSE) + { + $suffix = isset($this->config['url_suffix']) ? $this->config['url_suffix'] : ''; + + if ($suffix !== '') + { + if (($offset = strpos($uri, '?')) !== FALSE) + { + $uri = substr($uri, 0, $offset).$suffix.substr($uri, $offset); + } + else + { + $uri .= $suffix; + } + } + + return $base_url.$this->slash_item('index_page').$uri; + } + elseif (strpos($uri, '?') === FALSE) + { + $uri = '?'.$uri; + } + + return $base_url.$this->item('index_page').$uri; + } + + // ------------------------------------------------------------- + + /** + * Base URL + * + * Returns base_url [. uri_string] + * + * @uses CI_Config::_uri_string() + * + * @param string|string[] $uri URI string or an array of segments + * @param string $protocol + * @return string + */ + public function base_url($uri = '', $protocol = NULL) + { + $base_url = $this->slash_item('base_url'); + + if (isset($protocol)) + { + // For protocol-relative links + if ($protocol === '') + { + $base_url = substr($base_url, strpos($base_url, '//')); + } + else + { + $base_url = $protocol.substr($base_url, strpos($base_url, '://')); + } + } + + return $base_url.$this->_uri_string($uri); + } + + // ------------------------------------------------------------- + + /** + * Build URI string + * + * @used-by CI_Config::site_url() + * @used-by CI_Config::base_url() + * + * @param string|string[] $uri URI string or an array of segments + * @return string + */ + protected function _uri_string($uri) + { + if ($this->item('enable_query_strings') === FALSE) + { + is_array($uri) && $uri = implode('/', $uri); + return ltrim($uri, '/'); + } + elseif (is_array($uri)) + { + return http_build_query($uri); + } + + return $uri; + } + + // -------------------------------------------------------------------- + + /** + * System URL + * + * @deprecated 3.0.0 Encourages insecure practices + * @return string + */ + public function system_url() + { + $x = explode('/', preg_replace('|/*(.+?)/*$|', '\\1', BASEPATH)); + return $this->slash_item('base_url').end($x).'/'; + } + + // -------------------------------------------------------------------- + + /** + * Set a config file item + * + * @param string $item Config item key + * @param string $value Config item value + * @return void + */ + public function set_item($item, $value) + { + $this->config[$item] = $value; + } + +} diff --git a/ci/system/core/Controller.php b/ci/system/core/Controller.php new file mode 100644 index 0000000..aeccd60 --- /dev/null +++ b/ci/system/core/Controller.php @@ -0,0 +1,104 @@ + $class) + { + $this->$var =& load_class($class); + } + + $this->load =& load_class('Loader', 'core'); + $this->load->initialize(); + log_message('info', 'Controller Class Initialized'); + } + + // -------------------------------------------------------------------- + + /** + * Get the CI singleton + * + * @static + * @return object + */ + public static function &get_instance() + { + return self::$instance; + } + +} diff --git a/ci/system/core/Exceptions.php b/ci/system/core/Exceptions.php new file mode 100644 index 0000000..b1bc2de --- /dev/null +++ b/ci/system/core/Exceptions.php @@ -0,0 +1,275 @@ + 'Error', + E_WARNING => 'Warning', + E_PARSE => 'Parsing Error', + E_NOTICE => 'Notice', + E_CORE_ERROR => 'Core Error', + E_CORE_WARNING => 'Core Warning', + E_COMPILE_ERROR => 'Compile Error', + E_COMPILE_WARNING => 'Compile Warning', + E_USER_ERROR => 'User Error', + E_USER_WARNING => 'User Warning', + E_USER_NOTICE => 'User Notice', + E_STRICT => 'Runtime Notice' + ); + + /** + * Class constructor + * + * @return void + */ + public function __construct() + { + $this->ob_level = ob_get_level(); + // Note: Do not log messages from this constructor. + } + + // -------------------------------------------------------------------- + + /** + * Exception Logger + * + * Logs PHP generated error messages + * + * @param int $severity Log level + * @param string $message Error message + * @param string $filepath File path + * @param int $line Line number + * @return void + */ + public function log_exception($severity, $message, $filepath, $line) + { + $severity = isset($this->levels[$severity]) ? $this->levels[$severity] : $severity; + log_message('error', 'Severity: '.$severity.' --> '.$message.' '.$filepath.' '.$line); + } + + // -------------------------------------------------------------------- + + /** + * 404 Error Handler + * + * @uses CI_Exceptions::show_error() + * + * @param string $page Page URI + * @param bool $log_error Whether to log the error + * @return void + */ + public function show_404($page = '', $log_error = TRUE) + { + if (is_cli()) + { + $heading = 'Not Found'; + $message = 'The controller/method pair you requested was not found.'; + } + else + { + $heading = '404 Page Not Found'; + $message = 'The page you requested was not found.'; + } + + // By default we log this, but allow a dev to skip it + if ($log_error) + { + log_message('error', $heading.': '.$page); + } + + echo $this->show_error($heading, $message, 'error_404', 404); + exit(4); // EXIT_UNKNOWN_FILE + } + + // -------------------------------------------------------------------- + + /** + * General Error Page + * + * Takes an error message as input (either as a string or an array) + * and displays it using the specified template. + * + * @param string $heading Page heading + * @param string|string[] $message Error message + * @param string $template Template name + * @param int $status_code (default: 500) + * + * @return string Error page output + */ + public function show_error($heading, $message, $template = 'error_general', $status_code = 500) + { + $templates_path = config_item('error_views_path'); + if (empty($templates_path)) + { + $templates_path = VIEWPATH.'errors'.DIRECTORY_SEPARATOR; + } + + if (is_cli()) + { + $message = "\t".(is_array($message) ? implode("\n\t", $message) : $message); + $template = 'cli'.DIRECTORY_SEPARATOR.$template; + } + else + { + set_status_header($status_code); + $message = '

'.(is_array($message) ? implode('

', $message) : $message).'

'; + $template = 'html'.DIRECTORY_SEPARATOR.$template; + } + + if (ob_get_level() > $this->ob_level + 1) + { + ob_end_flush(); + } + ob_start(); + include($templates_path.$template.'.php'); + $buffer = ob_get_contents(); + ob_end_clean(); + return $buffer; + } + + // -------------------------------------------------------------------- + + public function show_exception($exception) + { + $templates_path = config_item('error_views_path'); + if (empty($templates_path)) + { + $templates_path = VIEWPATH.'errors'.DIRECTORY_SEPARATOR; + } + + $message = $exception->getMessage(); + if (empty($message)) + { + $message = '(null)'; + } + + if (is_cli()) + { + $templates_path .= 'cli'.DIRECTORY_SEPARATOR; + } + else + { + $templates_path .= 'html'.DIRECTORY_SEPARATOR; + } + + if (ob_get_level() > $this->ob_level + 1) + { + ob_end_flush(); + } + + ob_start(); + include($templates_path.'error_exception.php'); + $buffer = ob_get_contents(); + ob_end_clean(); + echo $buffer; + } + + // -------------------------------------------------------------------- + + /** + * Native PHP error handler + * + * @param int $severity Error level + * @param string $message Error message + * @param string $filepath File path + * @param int $line Line number + * @return void + */ + public function show_php_error($severity, $message, $filepath, $line) + { + $templates_path = config_item('error_views_path'); + if (empty($templates_path)) + { + $templates_path = VIEWPATH.'errors'.DIRECTORY_SEPARATOR; + } + + $severity = isset($this->levels[$severity]) ? $this->levels[$severity] : $severity; + + // For safety reasons we don't show the full file path in non-CLI requests + if ( ! is_cli()) + { + $filepath = str_replace('\\', '/', $filepath); + if (FALSE !== strpos($filepath, '/')) + { + $x = explode('/', $filepath); + $filepath = $x[count($x)-2].'/'.end($x); + } + + $template = 'html'.DIRECTORY_SEPARATOR.'error_php'; + } + else + { + $template = 'cli'.DIRECTORY_SEPARATOR.'error_php'; + } + + if (ob_get_level() > $this->ob_level + 1) + { + ob_end_flush(); + } + ob_start(); + include($templates_path.$template.'.php'); + $buffer = ob_get_contents(); + ob_end_clean(); + echo $buffer; + } + +} diff --git a/ci/system/core/Hooks.php b/ci/system/core/Hooks.php new file mode 100644 index 0000000..2246bbc --- /dev/null +++ b/ci/system/core/Hooks.php @@ -0,0 +1,267 @@ +item('enable_hooks') === FALSE) + { + return; + } + + // Grab the "hooks" definition file. + if (file_exists(APPPATH.'config/hooks.php')) + { + include(APPPATH.'config/hooks.php'); + } + + if (file_exists(APPPATH.'config/'.ENVIRONMENT.'/hooks.php')) + { + include(APPPATH.'config/'.ENVIRONMENT.'/hooks.php'); + } + + // If there are no hooks, we're done. + if ( ! isset($hook) OR ! is_array($hook)) + { + return; + } + + $this->hooks =& $hook; + $this->enabled = TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Call Hook + * + * Calls a particular hook. Called by CodeIgniter.php. + * + * @uses CI_Hooks::_run_hook() + * + * @param string $which Hook name + * @return bool TRUE on success or FALSE on failure + */ + public function call_hook($which = '') + { + if ( ! $this->enabled OR ! isset($this->hooks[$which])) + { + return FALSE; + } + + if (is_array($this->hooks[$which]) && ! isset($this->hooks[$which]['function'])) + { + foreach ($this->hooks[$which] as $val) + { + $this->_run_hook($val); + } + } + else + { + $this->_run_hook($this->hooks[$which]); + } + + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Run Hook + * + * Runs a particular hook + * + * @param array $data Hook details + * @return bool TRUE on success or FALSE on failure + */ + protected function _run_hook($data) + { + // Closures/lambda functions and array($object, 'method') callables + if (is_callable($data)) + { + is_array($data) + ? $data[0]->{$data[1]}() + : $data(); + + return TRUE; + } + elseif ( ! is_array($data)) + { + return FALSE; + } + + // ----------------------------------- + // Safety - Prevents run-away loops + // ----------------------------------- + + // If the script being called happens to have the same + // hook call within it a loop can happen + if ($this->_in_progress === TRUE) + { + return; + } + + // ----------------------------------- + // Set file path + // ----------------------------------- + + if ( ! isset($data['filepath'], $data['filename'])) + { + return FALSE; + } + + $filepath = APPPATH.$data['filepath'].'/'.$data['filename']; + + if ( ! file_exists($filepath)) + { + return FALSE; + } + + // Determine and class and/or function names + $class = empty($data['class']) ? FALSE : $data['class']; + $function = empty($data['function']) ? FALSE : $data['function']; + $params = isset($data['params']) ? $data['params'] : ''; + + if (empty($function)) + { + return FALSE; + } + + // Set the _in_progress flag + $this->_in_progress = TRUE; + + // Call the requested class and/or function + if ($class !== FALSE) + { + // The object is stored? + if (isset($this->_objects[$class])) + { + if (method_exists($this->_objects[$class], $function)) + { + $this->_objects[$class]->$function($params); + } + else + { + return $this->_in_progress = FALSE; + } + } + else + { + class_exists($class, FALSE) OR require_once($filepath); + + if ( ! class_exists($class, FALSE) OR ! method_exists($class, $function)) + { + return $this->_in_progress = FALSE; + } + + // Store the object and execute the method + $this->_objects[$class] = new $class(); + $this->_objects[$class]->$function($params); + } + } + else + { + function_exists($function) OR require_once($filepath); + + if ( ! function_exists($function)) + { + return $this->_in_progress = FALSE; + } + + $function($params); + } + + $this->_in_progress = FALSE; + return TRUE; + } + +} diff --git a/ci/system/core/Input.php b/ci/system/core/Input.php new file mode 100644 index 0000000..eba5f67 --- /dev/null +++ b/ci/system/core/Input.php @@ -0,0 +1,937 @@ +_allow_get_array = (config_item('allow_get_array') !== FALSE); + $this->_enable_xss = (config_item('global_xss_filtering') === TRUE); + $this->_enable_csrf = (config_item('csrf_protection') === TRUE); + $this->_standardize_newlines = (bool) config_item('standardize_newlines'); + + $this->security =& load_class('Security', 'core'); + + // Do we need the UTF-8 class? + if (UTF8_ENABLED === TRUE) + { + $this->uni =& load_class('Utf8', 'core'); + } + + // Sanitize global arrays + $this->_sanitize_globals(); + + // CSRF Protection check + if ($this->_enable_csrf === TRUE && ! is_cli()) + { + $this->security->csrf_verify(); + } + + log_message('info', 'Input Class Initialized'); + } + + // -------------------------------------------------------------------- + + /** + * Fetch from array + * + * Internal method used to retrieve values from global arrays. + * + * @param array &$array $_GET, $_POST, $_COOKIE, $_SERVER, etc. + * @param mixed $index Index for item to be fetched from $array + * @param bool $xss_clean Whether to apply XSS filtering + * @return mixed + */ + protected function _fetch_from_array(&$array, $index = NULL, $xss_clean = NULL) + { + is_bool($xss_clean) OR $xss_clean = $this->_enable_xss; + + // If $index is NULL, it means that the whole $array is requested + isset($index) OR $index = array_keys($array); + + // allow fetching multiple keys at once + if (is_array($index)) + { + $output = array(); + foreach ($index as $key) + { + $output[$key] = $this->_fetch_from_array($array, $key, $xss_clean); + } + + return $output; + } + + if (isset($array[$index])) + { + $value = $array[$index]; + } + elseif (($count = preg_match_all('/(?:^[^\[]+)|\[[^]]*\]/', $index, $matches)) > 1) // Does the index contain array notation + { + $value = $array; + for ($i = 0; $i < $count; $i++) + { + $key = trim($matches[0][$i], '[]'); + if ($key === '') // Empty notation will return the value as array + { + break; + } + + if (isset($value[$key])) + { + $value = $value[$key]; + } + else + { + return NULL; + } + } + } + else + { + return NULL; + } + + return ($xss_clean === TRUE) + ? $this->security->xss_clean($value) + : $value; + } + + // -------------------------------------------------------------------- + + /** + * Fetch an item from the GET array + * + * @param mixed $index Index for item to be fetched from $_GET + * @param bool $xss_clean Whether to apply XSS filtering + * @return mixed + */ + public function get($index = NULL, $xss_clean = NULL) + { + return $this->_fetch_from_array($_GET, $index, $xss_clean); + } + + // -------------------------------------------------------------------- + + /** + * Fetch an item from the POST array + * + * @param mixed $index Index for item to be fetched from $_POST + * @param bool $xss_clean Whether to apply XSS filtering + * @return mixed + */ + public function post($index = NULL, $xss_clean = NULL) + { + return $this->_fetch_from_array($_POST, $index, $xss_clean); + } + + // -------------------------------------------------------------------- + + /** + * Fetch an item from POST data with fallback to GET + * + * @param string $index Index for item to be fetched from $_POST or $_GET + * @param bool $xss_clean Whether to apply XSS filtering + * @return mixed + */ + public function post_get($index, $xss_clean = NULL) + { + return isset($_POST[$index]) + ? $this->post($index, $xss_clean) + : $this->get($index, $xss_clean); + } + + // -------------------------------------------------------------------- + + /** + * Fetch an item from GET data with fallback to POST + * + * @param string $index Index for item to be fetched from $_GET or $_POST + * @param bool $xss_clean Whether to apply XSS filtering + * @return mixed + */ + public function get_post($index, $xss_clean = NULL) + { + return isset($_GET[$index]) + ? $this->get($index, $xss_clean) + : $this->post($index, $xss_clean); + } + + // -------------------------------------------------------------------- + + /** + * Fetch an item from the COOKIE array + * + * @param mixed $index Index for item to be fetched from $_COOKIE + * @param bool $xss_clean Whether to apply XSS filtering + * @return mixed + */ + public function cookie($index = NULL, $xss_clean = NULL) + { + return $this->_fetch_from_array($_COOKIE, $index, $xss_clean); + } + + // -------------------------------------------------------------------- + + /** + * Fetch an item from the SERVER array + * + * @param mixed $index Index for item to be fetched from $_SERVER + * @param bool $xss_clean Whether to apply XSS filtering + * @return mixed + */ + public function server($index, $xss_clean = NULL) + { + return $this->_fetch_from_array($_SERVER, $index, $xss_clean); + } + + // ------------------------------------------------------------------------ + + /** + * Fetch an item from the php://input stream + * + * Useful when you need to access PUT, DELETE or PATCH request data. + * + * @param string $index Index for item to be fetched + * @param bool $xss_clean Whether to apply XSS filtering + * @return mixed + */ + public function input_stream($index = NULL, $xss_clean = NULL) + { + // Prior to PHP 5.6, the input stream can only be read once, + // so we'll need to check if we have already done that first. + if ( ! is_array($this->_input_stream)) + { + // $this->raw_input_stream will trigger __get(). + parse_str($this->raw_input_stream, $this->_input_stream); + is_array($this->_input_stream) OR $this->_input_stream = array(); + } + + return $this->_fetch_from_array($this->_input_stream, $index, $xss_clean); + } + + // ------------------------------------------------------------------------ + + /** + * Set cookie + * + * Accepts an arbitrary number of parameters (up to 7) or an associative + * array in the first parameter containing all the values. + * + * @param string|mixed[] $name Cookie name or an array containing parameters + * @param string $value Cookie value + * @param int $expire Cookie expiration time in seconds + * @param string $domain Cookie domain (e.g.: '.yourdomain.com') + * @param string $path Cookie path (default: '/') + * @param string $prefix Cookie name prefix + * @param bool $secure Whether to only transfer cookies via SSL + * @param bool $httponly Whether to only makes the cookie accessible via HTTP (no javascript) + * @param string $samesite SameSite attribute + * @return void + */ + public function set_cookie($name, $value = '', $expire = '', $domain = '', $path = '/', $prefix = '', $secure = NULL, $httponly = NULL, $samesite = NULL) + { + if (is_array($name)) + { + // always leave 'name' in last place, as the loop will break otherwise, due to $$item + foreach (array('value', 'expire', 'domain', 'path', 'prefix', 'secure', 'httponly', 'name', 'samesite') as $item) + { + if (isset($name[$item])) + { + $$item = $name[$item]; + } + } + } + + if ($prefix === '' && config_item('cookie_prefix') !== '') + { + $prefix = config_item('cookie_prefix'); + } + + if ($domain == '' && config_item('cookie_domain') != '') + { + $domain = config_item('cookie_domain'); + } + + if ($path === '/' && config_item('cookie_path') !== '/') + { + $path = config_item('cookie_path'); + } + + $secure = ($secure === NULL && config_item('cookie_secure') !== NULL) + ? (bool) config_item('cookie_secure') + : (bool) $secure; + + $httponly = ($httponly === NULL && config_item('cookie_httponly') !== NULL) + ? (bool) config_item('cookie_httponly') + : (bool) $httponly; + + if ( ! is_numeric($expire)) + { + $expire = time() - 86500; + } + else + { + $expire = ($expire > 0) ? time() + $expire : 0; + } + + isset($samesite) OR $samesite = config_item('cookie_samesite'); + if (isset($samesite)) + { + $samesite = ucfirst(strtolower($samesite)); + in_array($samesite, array('Lax', 'Strict', 'None'), TRUE) OR $samesite = 'Lax'; + } + else + { + $samesite = 'Lax'; + } + + if ($samesite === 'None' && ! $secure) + { + log_message('error', $name.' cookie sent with SameSite=None, but without Secure attribute.'); + } + + if ( ! is_php('7.3')) + { + $maxage = $expire - time(); + if ($maxage < 1) + { + $maxage = 0; + } + + $cookie_header = 'Set-Cookie: '.$prefix.$name.'='.rawurlencode($value); + $cookie_header .= ($expire === 0 ? '' : '; Expires='.gmdate('D, d-M-Y H:i:s T', $expire)).'; Max-Age='.$maxage; + $cookie_header .= '; Path='.$path.($domain !== '' ? '; Domain='.$domain : ''); + $cookie_header .= ($secure ? '; Secure' : '').($httponly ? '; HttpOnly' : '').'; SameSite='.$samesite; + header($cookie_header); + return; + } + + $setcookie_options = array( + 'expires' => $expire, + 'path' => $path, + 'domain' => $domain, + 'secure' => $secure, + 'httponly' => $httponly, + 'samesite' => $samesite, + ); + setcookie($prefix.$name, $value, $setcookie_options); + } + + // -------------------------------------------------------------------- + + /** + * Fetch the IP Address + * + * Determines and validates the visitor's IP address. + * + * @return string IP address + */ + public function ip_address() + { + if ($this->ip_address !== FALSE) + { + return $this->ip_address; + } + + $proxy_ips = config_item('proxy_ips'); + if ( ! empty($proxy_ips) && ! is_array($proxy_ips)) + { + $proxy_ips = explode(',', str_replace(' ', '', $proxy_ips)); + } + + $this->ip_address = $this->server('REMOTE_ADDR'); + + if ($proxy_ips) + { + foreach (array('HTTP_X_FORWARDED_FOR', 'HTTP_CLIENT_IP', 'HTTP_X_CLIENT_IP', 'HTTP_X_CLUSTER_CLIENT_IP') as $header) + { + if (($spoof = $this->server($header)) !== NULL) + { + // Some proxies typically list the whole chain of IP + // addresses through which the client has reached us. + // e.g. client_ip, proxy_ip1, proxy_ip2, etc. + sscanf($spoof, '%[^,]', $spoof); + + if ( ! $this->valid_ip($spoof)) + { + $spoof = NULL; + } + else + { + break; + } + } + } + + if ($spoof) + { + for ($i = 0, $c = count($proxy_ips); $i < $c; $i++) + { + // Check if we have an IP address or a subnet + if (strpos($proxy_ips[$i], '/') === FALSE) + { + // An IP address (and not a subnet) is specified. + // We can compare right away. + if ($proxy_ips[$i] === $this->ip_address) + { + $this->ip_address = $spoof; + break; + } + + continue; + } + + // We have a subnet ... now the heavy lifting begins + isset($separator) OR $separator = $this->valid_ip($this->ip_address, 'ipv6') ? ':' : '.'; + + // If the proxy entry doesn't match the IP protocol - skip it + if (strpos($proxy_ips[$i], $separator) === FALSE) + { + continue; + } + + // Convert the REMOTE_ADDR IP address to binary, if needed + if ( ! isset($ip, $sprintf)) + { + if ($separator === ':') + { + // Make sure we're have the "full" IPv6 format + $ip = explode(':', + str_replace('::', + str_repeat(':', 9 - substr_count($this->ip_address, ':')), + $this->ip_address + ) + ); + + for ($j = 0; $j < 8; $j++) + { + $ip[$j] = intval($ip[$j], 16); + } + + $sprintf = '%016b%016b%016b%016b%016b%016b%016b%016b'; + } + else + { + $ip = explode('.', $this->ip_address); + $sprintf = '%08b%08b%08b%08b'; + } + + $ip = vsprintf($sprintf, $ip); + } + + // Split the netmask length off the network address + sscanf($proxy_ips[$i], '%[^/]/%d', $netaddr, $masklen); + + // Again, an IPv6 address is most likely in a compressed form + if ($separator === ':') + { + $netaddr = explode(':', str_replace('::', str_repeat(':', 9 - substr_count($netaddr, ':')), $netaddr)); + for ($j = 0; $j < 8; $j++) + { + $netaddr[$j] = intval($netaddr[$j], 16); + } + } + else + { + $netaddr = explode('.', $netaddr); + } + + // Convert to binary and finally compare + if (strncmp($ip, vsprintf($sprintf, $netaddr), $masklen) === 0) + { + $this->ip_address = $spoof; + break; + } + } + } + } + + if ( ! $this->valid_ip($this->ip_address)) + { + return $this->ip_address = '0.0.0.0'; + } + + return $this->ip_address; + } + + // -------------------------------------------------------------------- + + /** + * Validate IP Address + * + * @param string $ip IP address + * @param string $which IP protocol: 'ipv4' or 'ipv6' + * @return bool + */ + public function valid_ip($ip, $which = '') + { + switch (strtolower($which)) + { + case 'ipv4': + $which = FILTER_FLAG_IPV4; + break; + case 'ipv6': + $which = FILTER_FLAG_IPV6; + break; + default: + $which = 0; + break; + } + + return (bool) filter_var($ip, FILTER_VALIDATE_IP, $which); + } + + // -------------------------------------------------------------------- + + /** + * Fetch User Agent string + * + * @return string|null User Agent string or NULL if it doesn't exist + */ + public function user_agent($xss_clean = NULL) + { + return $this->_fetch_from_array($_SERVER, 'HTTP_USER_AGENT', $xss_clean); + } + + // -------------------------------------------------------------------- + + /** + * Sanitize Globals + * + * Internal method serving for the following purposes: + * + * - Unsets $_GET data, if query strings are not enabled + * - Cleans POST, COOKIE and SERVER data + * - Standardizes newline characters to PHP_EOL + * + * @return void + */ + protected function _sanitize_globals() + { + // Is $_GET data allowed? If not we'll set the $_GET to an empty array + if ($this->_allow_get_array === FALSE) + { + $_GET = array(); + } + elseif (is_array($_GET)) + { + foreach ($_GET as $key => $val) + { + $_GET[$this->_clean_input_keys($key)] = $this->_clean_input_data($val); + } + } + + // Clean $_POST Data + if (is_array($_POST)) + { + foreach ($_POST as $key => $val) + { + $_POST[$this->_clean_input_keys($key)] = $this->_clean_input_data($val); + } + } + + // Clean $_COOKIE Data + if (is_array($_COOKIE)) + { + // Also get rid of specially treated cookies that might be set by a server + // or silly application, that are of no use to a CI application anyway + // but that when present will trip our 'Disallowed Key Characters' alarm + // http://www.ietf.org/rfc/rfc2109.txt + // note that the key names below are single quoted strings, and are not PHP variables + unset( + $_COOKIE['$Version'], + $_COOKIE['$Path'], + $_COOKIE['$Domain'] + ); + + foreach ($_COOKIE as $key => $val) + { + if (($cookie_key = $this->_clean_input_keys($key)) !== FALSE) + { + $_COOKIE[$cookie_key] = $this->_clean_input_data($val); + } + else + { + unset($_COOKIE[$key]); + } + } + } + + // Sanitize PHP_SELF + $_SERVER['PHP_SELF'] = strip_tags($_SERVER['PHP_SELF']); + + log_message('debug', 'Global POST, GET and COOKIE data sanitized'); + } + + // -------------------------------------------------------------------- + + /** + * Clean Input Data + * + * Internal method that aids in escaping data and + * standardizing newline characters to PHP_EOL. + * + * @param string|string[] $str Input string(s) + * @return string + */ + protected function _clean_input_data($str) + { + if (is_array($str)) + { + $new_array = array(); + foreach (array_keys($str) as $key) + { + $new_array[$this->_clean_input_keys($key)] = $this->_clean_input_data($str[$key]); + } + return $new_array; + } + + /* We strip slashes if magic quotes is on to keep things consistent + + NOTE: In PHP 5.4 get_magic_quotes_gpc() will always return 0 and + it will probably not exist in future versions at all. + */ + if ( ! is_php('5.4') && get_magic_quotes_gpc()) + { + $str = stripslashes($str); + } + + // Clean UTF-8 if supported + if (UTF8_ENABLED === TRUE) + { + $str = $this->uni->clean_string($str); + } + + // Remove control characters + $str = remove_invisible_characters($str, FALSE); + + // Standardize newlines if needed + if ($this->_standardize_newlines === TRUE) + { + return preg_replace('/(?:\r\n|[\r\n])/', PHP_EOL, $str); + } + + return $str; + } + + // -------------------------------------------------------------------- + + /** + * Clean Keys + * + * Internal method that helps to prevent malicious users + * from trying to exploit keys we make sure that keys are + * only named with alpha-numeric text and a few other items. + * + * @param string $str Input string + * @param bool $fatal Whether to terminate script exection + * or to return FALSE if an invalid + * key is encountered + * @return string|bool + */ + protected function _clean_input_keys($str, $fatal = TRUE) + { + if ( ! preg_match('/^[a-z0-9:_\/|-]+$/i', $str)) + { + if ($fatal === TRUE) + { + return FALSE; + } + else + { + set_status_header(503); + echo 'Disallowed Key Characters.'; + exit(7); // EXIT_USER_INPUT + } + } + + // Clean UTF-8 if supported + if (UTF8_ENABLED === TRUE) + { + return $this->uni->clean_string($str); + } + + return $str; + } + + // -------------------------------------------------------------------- + + /** + * Request Headers + * + * @param bool $xss_clean Whether to apply XSS filtering + * @return array + */ + public function request_headers($xss_clean = FALSE) + { + // If header is already defined, return it immediately + if ( ! empty($this->headers)) + { + return $this->_fetch_from_array($this->headers, NULL, $xss_clean); + } + + // In Apache, you can simply call apache_request_headers() + if (function_exists('apache_request_headers')) + { + $this->headers = apache_request_headers(); + } + else + { + isset($_SERVER['CONTENT_TYPE']) && $this->headers['Content-Type'] = $_SERVER['CONTENT_TYPE']; + + foreach ($_SERVER as $key => $val) + { + if (sscanf($key, 'HTTP_%s', $header) === 1) + { + // take SOME_HEADER and turn it into Some-Header + $header = str_replace('_', ' ', strtolower($header)); + $header = str_replace(' ', '-', ucwords($header)); + + $this->headers[$header] = $_SERVER[$key]; + } + } + } + + return $this->_fetch_from_array($this->headers, NULL, $xss_clean); + } + + // -------------------------------------------------------------------- + + /** + * Get Request Header + * + * Returns the value of a single member of the headers class member + * + * @param string $index Header name + * @param bool $xss_clean Whether to apply XSS filtering + * @return string|null The requested header on success or NULL on failure + */ + public function get_request_header($index, $xss_clean = FALSE) + { + static $headers; + + if ( ! isset($headers)) + { + empty($this->headers) && $this->request_headers(); + foreach ($this->headers as $key => $value) + { + $headers[strtolower($key)] = $value; + } + } + + $index = strtolower($index); + + if ( ! isset($headers[$index])) + { + return NULL; + } + + return ($xss_clean === TRUE) + ? $this->security->xss_clean($headers[$index]) + : $headers[$index]; + } + + // -------------------------------------------------------------------- + + /** + * Is AJAX request? + * + * Test to see if a request contains the HTTP_X_REQUESTED_WITH header. + * + * @return bool + */ + public function is_ajax_request() + { + return ( ! empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) === 'xmlhttprequest'); + } + + // -------------------------------------------------------------------- + + /** + * Is CLI request? + * + * Test to see if a request was made from the command line. + * + * @deprecated 3.0.0 Use is_cli() instead + * @return bool + */ + public function is_cli_request() + { + return is_cli(); + } + + // -------------------------------------------------------------------- + + /** + * Get Request Method + * + * Return the request method + * + * @param bool $upper Whether to return in upper or lower case + * (default: FALSE) + * @return string + */ + public function method($upper = FALSE) + { + return ($upper) + ? strtoupper($this->server('REQUEST_METHOD')) + : strtolower($this->server('REQUEST_METHOD')); + } + + // ------------------------------------------------------------------------ + + /** + * Magic __get() + * + * Allows read access to protected properties + * + * @param string $name + * @return mixed + */ + public function __get($name) + { + if ($name === 'raw_input_stream') + { + isset($this->_raw_input_stream) OR $this->_raw_input_stream = file_get_contents('php://input'); + return $this->_raw_input_stream; + } + elseif ($name === 'ip_address') + { + return $this->ip_address; + } + } + +} diff --git a/ci/system/core/Lang.php b/ci/system/core/Lang.php new file mode 100644 index 0000000..1829906 --- /dev/null +++ b/ci/system/core/Lang.php @@ -0,0 +1,204 @@ +load($value, $idiom, $return, $add_suffix, $alt_path); + } + + return; + } + + $langfile = str_replace('.php', '', $langfile); + + if ($add_suffix === TRUE) + { + $langfile = preg_replace('/_lang$/', '', $langfile).'_lang'; + } + + $langfile .= '.php'; + + if (empty($idiom) OR ! preg_match('/^[a-z_-]+$/i', $idiom)) + { + $config =& get_config(); + $idiom = empty($config['language']) ? 'english' : $config['language']; + } + + if ($return === FALSE && isset($this->is_loaded[$langfile]) && $this->is_loaded[$langfile] === $idiom) + { + return; + } + + // Load the base file, so any others found can override it + $basepath = BASEPATH.'language/'.$idiom.'/'.$langfile; + if (($found = file_exists($basepath)) === TRUE) + { + include($basepath); + } + + // Do we have an alternative path to look in? + if ($alt_path !== '') + { + $alt_path .= 'language/'.$idiom.'/'.$langfile; + if (file_exists($alt_path)) + { + include($alt_path); + $found = TRUE; + } + } + else + { + foreach (get_instance()->load->get_package_paths(TRUE) as $package_path) + { + $package_path .= 'language/'.$idiom.'/'.$langfile; + if ($basepath !== $package_path && file_exists($package_path)) + { + include($package_path); + $found = TRUE; + break; + } + } + } + + if ($found !== TRUE) + { + show_error('Unable to load the requested language file: language/'.$idiom.'/'.$langfile); + } + + if ( ! isset($lang) OR ! is_array($lang)) + { + log_message('error', 'Language file contains no data: language/'.$idiom.'/'.$langfile); + + if ($return === TRUE) + { + return array(); + } + return; + } + + if ($return === TRUE) + { + return $lang; + } + + $this->is_loaded[$langfile] = $idiom; + $this->language = array_merge($this->language, $lang); + + log_message('info', 'Language file loaded: language/'.$idiom.'/'.$langfile); + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Language line + * + * Fetches a single line of text from the language array + * + * @param string $line Language line key + * @param bool $log_errors Whether to log an error message if the line is not found + * @return string Translation + */ + public function line($line, $log_errors = TRUE) + { + $value = isset($this->language[$line]) ? $this->language[$line] : FALSE; + + // Because killer robots like unicorns! + if ($value === FALSE && $log_errors === TRUE) + { + log_message('error', 'Could not find the language line "'.$line.'"'); + } + + return $value; + } + +} diff --git a/ci/system/core/Loader.php b/ci/system/core/Loader.php new file mode 100644 index 0000000..a70487e --- /dev/null +++ b/ci/system/core/Loader.php @@ -0,0 +1,1416 @@ + TRUE); + + /** + * List of paths to load libraries from + * + * @var array + */ + protected $_ci_library_paths = array(APPPATH, BASEPATH); + + /** + * List of paths to load models from + * + * @var array + */ + protected $_ci_model_paths = array(APPPATH); + + /** + * List of paths to load helpers from + * + * @var array + */ + protected $_ci_helper_paths = array(APPPATH, BASEPATH); + + /** + * List of cached variables + * + * @var array + */ + protected $_ci_cached_vars = array(); + + /** + * List of loaded classes + * + * @var array + */ + protected $_ci_classes = array(); + + /** + * List of loaded models + * + * @var array + */ + protected $_ci_models = array(); + + /** + * List of loaded helpers + * + * @var array + */ + protected $_ci_helpers = array(); + + /** + * List of class name mappings + * + * @var array + */ + protected $_ci_varmap = array( + 'unit_test' => 'unit', + 'user_agent' => 'agent' + ); + + // -------------------------------------------------------------------- + + /** + * Class constructor + * + * Sets component load paths, gets the initial output buffering level. + * + * @return void + */ + public function __construct() + { + $this->_ci_ob_level = ob_get_level(); + $this->_ci_classes =& is_loaded(); + + log_message('info', 'Loader Class Initialized'); + } + + // -------------------------------------------------------------------- + + /** + * Initializer + * + * @todo Figure out a way to move this to the constructor + * without breaking *package_path*() methods. + * @uses CI_Loader::_ci_autoloader() + * @used-by CI_Controller::__construct() + * @return void + */ + public function initialize() + { + $this->_ci_autoloader(); + } + + // -------------------------------------------------------------------- + + /** + * Is Loaded + * + * A utility method to test if a class is in the self::$_ci_classes array. + * + * @used-by Mainly used by Form Helper function _get_validation_object(). + * + * @param string $class Class name to check for + * @return string|bool Class object name if loaded or FALSE + */ + public function is_loaded($class) + { + return array_search(ucfirst($class), $this->_ci_classes, TRUE); + } + + // -------------------------------------------------------------------- + + /** + * Library Loader + * + * Loads and instantiates libraries. + * Designed to be called from application controllers. + * + * @param mixed $library Library name + * @param array $params Optional parameters to pass to the library class constructor + * @param string $object_name An optional object name to assign to + * @return object + */ + public function library($library, $params = NULL, $object_name = NULL) + { + if (empty($library)) + { + return $this; + } + elseif (is_array($library)) + { + foreach ($library as $key => $value) + { + if (is_int($key)) + { + $this->library($value, $params); + } + else + { + $this->library($key, $params, $value); + } + } + + return $this; + } + + if ($params !== NULL && ! is_array($params)) + { + $params = NULL; + } + + $this->_ci_load_library($library, $params, $object_name); + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Model Loader + * + * Loads and instantiates models. + * + * @param mixed $model Model name + * @param string $name An optional object name to assign to + * @param bool $db_conn An optional database connection configuration to initialize + * @return object + */ + public function model($model, $name = '', $db_conn = FALSE) + { + if (empty($model)) + { + return $this; + } + elseif (is_array($model)) + { + foreach ($model as $key => $value) + { + is_int($key) ? $this->model($value, '', $db_conn) : $this->model($key, $value, $db_conn); + } + + return $this; + } + + $path = ''; + + // Is the model in a sub-folder? If so, parse out the filename and path. + if (($last_slash = strrpos($model, '/')) !== FALSE) + { + // The path is in front of the last slash + $path = substr($model, 0, ++$last_slash); + + // And the model name behind it + $model = substr($model, $last_slash); + } + + if (empty($name)) + { + $name = $model; + } + + if (in_array($name, $this->_ci_models, TRUE)) + { + return $this; + } + + $CI =& get_instance(); + if (isset($CI->$name)) + { + throw new RuntimeException('The model name you are loading is the name of a resource that is already being used: '.$name); + } + + if ($db_conn !== FALSE && ! class_exists('CI_DB', FALSE)) + { + if ($db_conn === TRUE) + { + $db_conn = ''; + } + + $this->database($db_conn, FALSE, TRUE); + } + + // Note: All of the code under this condition used to be just: + // + // load_class('Model', 'core'); + // + // However, load_class() instantiates classes + // to cache them for later use and that prevents + // MY_Model from being an abstract class and is + // sub-optimal otherwise anyway. + if ( ! class_exists('CI_Model', FALSE)) + { + $app_path = APPPATH.'core'.DIRECTORY_SEPARATOR; + if (file_exists($app_path.'Model.php')) + { + require_once($app_path.'Model.php'); + if ( ! class_exists('CI_Model', FALSE)) + { + throw new RuntimeException($app_path."Model.php exists, but doesn't declare class CI_Model"); + } + + log_message('info', 'CI_Model class loaded'); + } + elseif ( ! class_exists('CI_Model', FALSE)) + { + require_once(BASEPATH.'core'.DIRECTORY_SEPARATOR.'Model.php'); + } + + $class = config_item('subclass_prefix').'Model'; + if (file_exists($app_path.$class.'.php')) + { + require_once($app_path.$class.'.php'); + if ( ! class_exists($class, FALSE)) + { + throw new RuntimeException($app_path.$class.".php exists, but doesn't declare class ".$class); + } + + log_message('info', config_item('subclass_prefix').'Model class loaded'); + } + } + + $model = ucfirst($model); + if ( ! class_exists($model, FALSE)) + { + foreach ($this->_ci_model_paths as $mod_path) + { + if ( ! file_exists($mod_path.'models/'.$path.$model.'.php')) + { + continue; + } + + require_once($mod_path.'models/'.$path.$model.'.php'); + if ( ! class_exists($model, FALSE)) + { + throw new RuntimeException($mod_path."models/".$path.$model.".php exists, but doesn't declare class ".$model); + } + + break; + } + + if ( ! class_exists($model, FALSE)) + { + throw new RuntimeException('Unable to locate the model you have specified: '.$model); + } + } + elseif ( ! is_subclass_of($model, 'CI_Model')) + { + throw new RuntimeException("Class ".$model." already exists and doesn't extend CI_Model"); + } + + $this->_ci_models[] = $name; + $model = new $model(); + $CI->$name = $model; + log_message('info', 'Model "'.get_class($model).'" initialized'); + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Database Loader + * + * @param mixed $params Database configuration options + * @param bool $return Whether to return the database object + * @param bool $query_builder Whether to enable Query Builder + * (overrides the configuration setting) + * + * @return object|bool Database object if $return is set to TRUE, + * FALSE on failure, CI_Loader instance in any other case + */ + public function database($params = '', $return = FALSE, $query_builder = NULL) + { + // Grab the super object + $CI =& get_instance(); + + // Do we even need to load the database class? + if ($return === FALSE && $query_builder === NULL && isset($CI->db) && is_object($CI->db) && ! empty($CI->db->conn_id)) + { + return FALSE; + } + + require_once(BASEPATH.'database/DB.php'); + + if ($return === TRUE) + { + return DB($params, $query_builder); + } + + // Initialize the db variable. Needed to prevent + // reference errors with some configurations + $CI->db = ''; + + // Load the DB class + $CI->db =& DB($params, $query_builder); + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Load the Database Utilities Class + * + * @param object $db Database object + * @param bool $return Whether to return the DB Utilities class object or not + * @return object + */ + public function dbutil($db = NULL, $return = FALSE) + { + $CI =& get_instance(); + + if ( ! is_object($db) OR ! ($db instanceof CI_DB)) + { + class_exists('CI_DB', FALSE) OR $this->database(); + $db =& $CI->db; + } + + require_once(BASEPATH.'database/DB_utility.php'); + require_once(BASEPATH.'database/drivers/'.$db->dbdriver.'/'.$db->dbdriver.'_utility.php'); + $class = 'CI_DB_'.$db->dbdriver.'_utility'; + + if ($return === TRUE) + { + return new $class($db); + } + + $CI->dbutil = new $class($db); + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Load the Database Forge Class + * + * @param object $db Database object + * @param bool $return Whether to return the DB Forge class object or not + * @return object + */ + public function dbforge($db = NULL, $return = FALSE) + { + $CI =& get_instance(); + if ( ! is_object($db) OR ! ($db instanceof CI_DB)) + { + class_exists('CI_DB', FALSE) OR $this->database(); + $db =& $CI->db; + } + + require_once(BASEPATH.'database/DB_forge.php'); + require_once(BASEPATH.'database/drivers/'.$db->dbdriver.'/'.$db->dbdriver.'_forge.php'); + + if ( ! empty($db->subdriver)) + { + $driver_path = BASEPATH.'database/drivers/'.$db->dbdriver.'/subdrivers/'.$db->dbdriver.'_'.$db->subdriver.'_forge.php'; + if (file_exists($driver_path)) + { + require_once($driver_path); + $class = 'CI_DB_'.$db->dbdriver.'_'.$db->subdriver.'_forge'; + } + } + else + { + $class = 'CI_DB_'.$db->dbdriver.'_forge'; + } + + if ($return === TRUE) + { + return new $class($db); + } + + $CI->dbforge = new $class($db); + return $this; + } + + // -------------------------------------------------------------------- + + /** + * View Loader + * + * Loads "view" files. + * + * @param string $view View name + * @param array $vars An associative array of data + * to be extracted for use in the view + * @param bool $return Whether to return the view output + * or leave it to the Output class + * @return object|string + */ + public function view($view, $vars = array(), $return = FALSE) + { + return $this->_ci_load(array('_ci_view' => $view, '_ci_vars' => $this->_ci_prepare_view_vars($vars), '_ci_return' => $return)); + } + + // -------------------------------------------------------------------- + + /** + * Generic File Loader + * + * @param string $path File path + * @param bool $return Whether to return the file output + * @return object|string + */ + public function file($path, $return = FALSE) + { + return $this->_ci_load(array('_ci_path' => $path, '_ci_return' => $return)); + } + + // -------------------------------------------------------------------- + + /** + * Set Variables + * + * Once variables are set they become available within + * the controller class and its "view" files. + * + * @param array|object|string $vars + * An associative array or object containing values + * to be set, or a value's name if string + * @param string $val Value to set, only used if $vars is a string + * @return object + */ + public function vars($vars, $val = '') + { + $vars = is_string($vars) + ? array($vars => $val) + : $this->_ci_prepare_view_vars($vars); + + foreach ($vars as $key => $val) + { + $this->_ci_cached_vars[$key] = $val; + } + + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Clear Cached Variables + * + * Clears the cached variables. + * + * @return CI_Loader + */ + public function clear_vars() + { + $this->_ci_cached_vars = array(); + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Get Variable + * + * Check if a variable is set and retrieve it. + * + * @param string $key Variable name + * @return mixed The variable or NULL if not found + */ + public function get_var($key) + { + return isset($this->_ci_cached_vars[$key]) ? $this->_ci_cached_vars[$key] : NULL; + } + + // -------------------------------------------------------------------- + + /** + * Get Variables + * + * Retrieves all loaded variables. + * + * @return array + */ + public function get_vars() + { + return $this->_ci_cached_vars; + } + + // -------------------------------------------------------------------- + + /** + * Helper Loader + * + * @param string|string[] $helpers Helper name(s) + * @return object + */ + public function helper($helpers = array()) + { + is_array($helpers) OR $helpers = array($helpers); + foreach ($helpers as &$helper) + { + $filename = basename($helper); + $filepath = ($filename === $helper) ? '' : substr($helper, 0, strlen($helper) - strlen($filename)); + $filename = strtolower(preg_replace('#(_helper)?(\.php)?$#i', '', $filename)).'_helper'; + $helper = $filepath.$filename; + + if (isset($this->_ci_helpers[$helper])) + { + continue; + } + + // Is this a helper extension request? + $ext_helper = config_item('subclass_prefix').$filename; + $ext_loaded = FALSE; + foreach ($this->_ci_helper_paths as $path) + { + if (file_exists($path.'helpers/'.$ext_helper.'.php')) + { + include_once($path.'helpers/'.$ext_helper.'.php'); + $ext_loaded = TRUE; + } + } + + // If we have loaded extensions - check if the base one is here + if ($ext_loaded === TRUE) + { + $base_helper = BASEPATH.'helpers/'.$helper.'.php'; + if ( ! file_exists($base_helper)) + { + show_error('Unable to load the requested file: helpers/'.$helper.'.php'); + } + + include_once($base_helper); + $this->_ci_helpers[$helper] = TRUE; + log_message('info', 'Helper loaded: '.$helper); + continue; + } + + // No extensions found ... try loading regular helpers and/or overrides + foreach ($this->_ci_helper_paths as $path) + { + if (file_exists($path.'helpers/'.$helper.'.php')) + { + include_once($path.'helpers/'.$helper.'.php'); + + $this->_ci_helpers[$helper] = TRUE; + log_message('info', 'Helper loaded: '.$helper); + break; + } + } + + // unable to load the helper + if ( ! isset($this->_ci_helpers[$helper])) + { + show_error('Unable to load the requested file: helpers/'.$helper.'.php'); + } + } + + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Load Helpers + * + * An alias for the helper() method in case the developer has + * written the plural form of it. + * + * @uses CI_Loader::helper() + * @param string|string[] $helpers Helper name(s) + * @return object + */ + public function helpers($helpers = array()) + { + return $this->helper($helpers); + } + + // -------------------------------------------------------------------- + + /** + * Language Loader + * + * Loads language files. + * + * @param string|string[] $files List of language file names to load + * @param string Language name + * @return object + */ + public function language($files, $lang = '') + { + get_instance()->lang->load($files, $lang); + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Config Loader + * + * Loads a config file (an alias for CI_Config::load()). + * + * @uses CI_Config::load() + * @param string $file Configuration file name + * @param bool $use_sections Whether configuration values should be loaded into their own section + * @param bool $fail_gracefully Whether to just return FALSE or display an error message + * @return bool TRUE if the file was loaded correctly or FALSE on failure + */ + public function config($file, $use_sections = FALSE, $fail_gracefully = FALSE) + { + return get_instance()->config->load($file, $use_sections, $fail_gracefully); + } + + // -------------------------------------------------------------------- + + /** + * Driver Loader + * + * Loads a driver library. + * + * @param string|string[] $library Driver name(s) + * @param array $params Optional parameters to pass to the driver + * @param string $object_name An optional object name to assign to + * + * @return object|bool Object or FALSE on failure if $library is a string + * and $object_name is set. CI_Loader instance otherwise. + */ + public function driver($library, $params = NULL, $object_name = NULL) + { + if (is_array($library)) + { + foreach ($library as $key => $value) + { + if (is_int($key)) + { + $this->driver($value, $params); + } + else + { + $this->driver($key, $params, $value); + } + } + + return $this; + } + elseif (empty($library)) + { + return FALSE; + } + + if ( ! class_exists('CI_Driver_Library', FALSE)) + { + // We aren't instantiating an object here, just making the base class available + require BASEPATH.'libraries/Driver.php'; + } + + // We can save the loader some time since Drivers will *always* be in a subfolder, + // and typically identically named to the library + if ( ! strpos($library, '/')) + { + $library = ucfirst($library).'/'.$library; + } + + return $this->library($library, $params, $object_name); + } + + // -------------------------------------------------------------------- + + /** + * Add Package Path + * + * Prepends a parent path to the library, model, helper and config + * path arrays. + * + * @see CI_Loader::$_ci_library_paths + * @see CI_Loader::$_ci_model_paths + * @see CI_Loader::$_ci_helper_paths + * @see CI_Config::$_config_paths + * + * @param string $path Path to add + * @param bool $view_cascade (default: TRUE) + * @return object + */ + public function add_package_path($path, $view_cascade = TRUE) + { + $path = rtrim($path, '/').'/'; + + array_unshift($this->_ci_library_paths, $path); + array_unshift($this->_ci_model_paths, $path); + array_unshift($this->_ci_helper_paths, $path); + + $this->_ci_view_paths = array($path.'views/' => $view_cascade) + $this->_ci_view_paths; + + // Add config file path + $config =& $this->_ci_get_component('config'); + $config->_config_paths[] = $path; + + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Get Package Paths + * + * Return a list of all package paths. + * + * @param bool $include_base Whether to include BASEPATH (default: FALSE) + * @return array + */ + public function get_package_paths($include_base = FALSE) + { + return ($include_base === TRUE) ? $this->_ci_library_paths : $this->_ci_model_paths; + } + + // -------------------------------------------------------------------- + + /** + * Remove Package Path + * + * Remove a path from the library, model, helper and/or config + * path arrays if it exists. If no path is provided, the most recently + * added path will be removed removed. + * + * @param string $path Path to remove + * @return object + */ + public function remove_package_path($path = '') + { + $config =& $this->_ci_get_component('config'); + + if ($path === '') + { + array_shift($this->_ci_library_paths); + array_shift($this->_ci_model_paths); + array_shift($this->_ci_helper_paths); + array_shift($this->_ci_view_paths); + array_pop($config->_config_paths); + } + else + { + $path = rtrim($path, '/').'/'; + foreach (array('_ci_library_paths', '_ci_model_paths', '_ci_helper_paths') as $var) + { + if (($key = array_search($path, $this->{$var})) !== FALSE) + { + unset($this->{$var}[$key]); + } + } + + if (isset($this->_ci_view_paths[$path.'views/'])) + { + unset($this->_ci_view_paths[$path.'views/']); + } + + if (($key = array_search($path, $config->_config_paths)) !== FALSE) + { + unset($config->_config_paths[$key]); + } + } + + // make sure the application default paths are still in the array + $this->_ci_library_paths = array_unique(array_merge($this->_ci_library_paths, array(APPPATH, BASEPATH))); + $this->_ci_helper_paths = array_unique(array_merge($this->_ci_helper_paths, array(APPPATH, BASEPATH))); + $this->_ci_model_paths = array_unique(array_merge($this->_ci_model_paths, array(APPPATH))); + $this->_ci_view_paths = array_merge($this->_ci_view_paths, array(APPPATH.'views/' => TRUE)); + $config->_config_paths = array_unique(array_merge($config->_config_paths, array(APPPATH))); + + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Internal CI Data Loader + * + * Used to load views and files. + * + * Variables are prefixed with _ci_ to avoid symbol collision with + * variables made available to view files. + * + * @used-by CI_Loader::view() + * @used-by CI_Loader::file() + * @param array $_ci_data Data to load + * @return object + */ + protected function _ci_load($_ci_data) + { + // Set the default data variables + foreach (array('_ci_view', '_ci_vars', '_ci_path', '_ci_return') as $_ci_val) + { + $$_ci_val = isset($_ci_data[$_ci_val]) ? $_ci_data[$_ci_val] : FALSE; + } + + $file_exists = FALSE; + + // Set the path to the requested file + if (is_string($_ci_path) && $_ci_path !== '') + { + $_ci_x = explode('/', $_ci_path); + $_ci_file = end($_ci_x); + } + else + { + $_ci_ext = pathinfo($_ci_view, PATHINFO_EXTENSION); + $_ci_file = ($_ci_ext === '') ? $_ci_view.'.php' : $_ci_view; + + foreach ($this->_ci_view_paths as $_ci_view_file => $cascade) + { + if (file_exists($_ci_view_file.$_ci_file)) + { + $_ci_path = $_ci_view_file.$_ci_file; + $file_exists = TRUE; + break; + } + + if ( ! $cascade) + { + break; + } + } + } + + if ( ! $file_exists && ! file_exists($_ci_path)) + { + show_error('Unable to load the requested file: '.$_ci_file); + } + + // This allows anything loaded using $this->load (views, files, etc.) + // to become accessible from within the Controller and Model functions. + $_ci_CI =& get_instance(); + foreach (get_object_vars($_ci_CI) as $_ci_key => $_ci_var) + { + if ( ! isset($this->$_ci_key)) + { + $this->$_ci_key =& $_ci_CI->$_ci_key; + } + } + + /* + * Extract and cache variables + * + * You can either set variables using the dedicated $this->load->vars() + * function or via the second parameter of this function. We'll merge + * the two types and cache them so that views that are embedded within + * other views can have access to these variables. + */ + empty($_ci_vars) OR $this->_ci_cached_vars = array_merge($this->_ci_cached_vars, $_ci_vars); + extract($this->_ci_cached_vars); + + /* + * Buffer the output + * + * We buffer the output for two reasons: + * 1. Speed. You get a significant speed boost. + * 2. So that the final rendered template can be post-processed by + * the output class. Why do we need post processing? For one thing, + * in order to show the elapsed page load time. Unless we can + * intercept the content right before it's sent to the browser and + * then stop the timer it won't be accurate. + */ + ob_start(); + + // If the PHP installation does not support short tags we'll + // do a little string replacement, changing the short tags + // to standard PHP echo statements. + if ( ! is_php('5.4') && ! ini_get('short_open_tag') && config_item('rewrite_short_tags') === TRUE) + { + echo eval('?>'.preg_replace('/;*\s*\?>/', '; ?>', str_replace(' $this->_ci_ob_level + 1) + { + ob_end_flush(); + } + else + { + $_ci_CI->output->append_output(ob_get_contents()); + @ob_end_clean(); + } + + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Internal CI Library Loader + * + * @used-by CI_Loader::library() + * @uses CI_Loader::_ci_init_library() + * + * @param string $class Class name to load + * @param mixed $params Optional parameters to pass to the class constructor + * @param string $object_name Optional object name to assign to + * @return void + */ + protected function _ci_load_library($class, $params = NULL, $object_name = NULL) + { + // Get the class name, and while we're at it trim any slashes. + // The directory path can be included as part of the class name, + // but we don't want a leading slash + $class = str_replace('.php', '', trim($class, '/')); + + // Was the path included with the class name? + // We look for a slash to determine this + if (($last_slash = strrpos($class, '/')) !== FALSE) + { + // Extract the path + $subdir = substr($class, 0, ++$last_slash); + + // Get the filename from the path + $class = substr($class, $last_slash); + } + else + { + $subdir = ''; + } + + $class = ucfirst($class); + + // Is this a stock library? There are a few special conditions if so ... + if (file_exists(BASEPATH.'libraries/'.$subdir.$class.'.php')) + { + return $this->_ci_load_stock_library($class, $subdir, $params, $object_name); + } + + // Safety: Was the class already loaded by a previous call? + if (class_exists($class, FALSE)) + { + $property = $object_name; + if (empty($property)) + { + $property = strtolower($class); + isset($this->_ci_varmap[$property]) && $property = $this->_ci_varmap[$property]; + } + + $CI =& get_instance(); + if (isset($CI->$property)) + { + log_message('debug', $class.' class already loaded. Second attempt ignored.'); + return; + } + + return $this->_ci_init_library($class, '', $params, $object_name); + } + + // Let's search for the requested library file and load it. + foreach ($this->_ci_library_paths as $path) + { + // BASEPATH has already been checked for + if ($path === BASEPATH) + { + continue; + } + + $filepath = $path.'libraries/'.$subdir.$class.'.php'; + // Does the file exist? No? Bummer... + if ( ! file_exists($filepath)) + { + continue; + } + + include_once($filepath); + return $this->_ci_init_library($class, '', $params, $object_name); + } + + // One last attempt. Maybe the library is in a subdirectory, but it wasn't specified? + if ($subdir === '') + { + return $this->_ci_load_library($class.'/'.$class, $params, $object_name); + } + + // If we got this far we were unable to find the requested class. + log_message('error', 'Unable to load the requested class: '.$class); + show_error('Unable to load the requested class: '.$class); + } + + // -------------------------------------------------------------------- + + /** + * Internal CI Stock Library Loader + * + * @used-by CI_Loader::_ci_load_library() + * @uses CI_Loader::_ci_init_library() + * + * @param string $library_name Library name to load + * @param string $file_path Path to the library filename, relative to libraries/ + * @param mixed $params Optional parameters to pass to the class constructor + * @param string $object_name Optional object name to assign to + * @return void + */ + protected function _ci_load_stock_library($library_name, $file_path, $params, $object_name) + { + $prefix = 'CI_'; + + if (class_exists($prefix.$library_name, FALSE)) + { + if (class_exists(config_item('subclass_prefix').$library_name, FALSE)) + { + $prefix = config_item('subclass_prefix'); + } + + $property = $object_name; + if (empty($property)) + { + $property = strtolower($library_name); + isset($this->_ci_varmap[$property]) && $property = $this->_ci_varmap[$property]; + } + + $CI =& get_instance(); + if ( ! isset($CI->$property)) + { + return $this->_ci_init_library($library_name, $prefix, $params, $object_name); + } + + log_message('debug', $library_name.' class already loaded. Second attempt ignored.'); + return; + } + + $paths = $this->_ci_library_paths; + array_pop($paths); // BASEPATH + array_pop($paths); // APPPATH (needs to be the first path checked) + array_unshift($paths, APPPATH); + + foreach ($paths as $path) + { + if (file_exists($path = $path.'libraries/'.$file_path.$library_name.'.php')) + { + // Override + include_once($path); + if (class_exists($prefix.$library_name, FALSE)) + { + return $this->_ci_init_library($library_name, $prefix, $params, $object_name); + } + + log_message('debug', $path.' exists, but does not declare '.$prefix.$library_name); + } + } + + include_once(BASEPATH.'libraries/'.$file_path.$library_name.'.php'); + + // Check for extensions + $subclass = config_item('subclass_prefix').$library_name; + foreach ($paths as $path) + { + if (file_exists($path = $path.'libraries/'.$file_path.$subclass.'.php')) + { + include_once($path); + if (class_exists($subclass, FALSE)) + { + $prefix = config_item('subclass_prefix'); + break; + } + + log_message('debug', $path.' exists, but does not declare '.$subclass); + } + } + + return $this->_ci_init_library($library_name, $prefix, $params, $object_name); + } + + // -------------------------------------------------------------------- + + /** + * Internal CI Library Instantiator + * + * @used-by CI_Loader::_ci_load_stock_library() + * @used-by CI_Loader::_ci_load_library() + * + * @param string $class Class name + * @param string $prefix Class name prefix + * @param array|null|bool $config Optional configuration to pass to the class constructor: + * FALSE to skip; + * NULL to search in config paths; + * array containing configuration data + * @param string $object_name Optional object name to assign to + * @return void + */ + protected function _ci_init_library($class, $prefix, $config = FALSE, $object_name = NULL) + { + // Is there an associated config file for this class? Note: these should always be lowercase + if ($config === NULL) + { + // Fetch the config paths containing any package paths + $config_component = $this->_ci_get_component('config'); + + if (is_array($config_component->_config_paths)) + { + $found = FALSE; + foreach ($config_component->_config_paths as $path) + { + // We test for both uppercase and lowercase, for servers that + // are case-sensitive with regard to file names. Load global first, + // override with environment next + if (file_exists($path.'config/'.strtolower($class).'.php')) + { + include($path.'config/'.strtolower($class).'.php'); + $found = TRUE; + } + elseif (file_exists($path.'config/'.ucfirst(strtolower($class)).'.php')) + { + include($path.'config/'.ucfirst(strtolower($class)).'.php'); + $found = TRUE; + } + + if (file_exists($path.'config/'.ENVIRONMENT.'/'.strtolower($class).'.php')) + { + include($path.'config/'.ENVIRONMENT.'/'.strtolower($class).'.php'); + $found = TRUE; + } + elseif (file_exists($path.'config/'.ENVIRONMENT.'/'.ucfirst(strtolower($class)).'.php')) + { + include($path.'config/'.ENVIRONMENT.'/'.ucfirst(strtolower($class)).'.php'); + $found = TRUE; + } + + // Break on the first found configuration, thus package + // files are not overridden by default paths + if ($found === TRUE) + { + break; + } + } + } + } + + $class_name = $prefix.$class; + + // Is the class name valid? + if ( ! class_exists($class_name, FALSE)) + { + log_message('error', 'Non-existent class: '.$class_name); + show_error('Non-existent class: '.$class_name); + } + + // Set the variable name we will assign the class to + // Was a custom class name supplied? If so we'll use it + if (empty($object_name)) + { + $object_name = strtolower($class); + if (isset($this->_ci_varmap[$object_name])) + { + $object_name = $this->_ci_varmap[$object_name]; + } + } + + // Don't overwrite existing properties + $CI =& get_instance(); + if (isset($CI->$object_name)) + { + if ($CI->$object_name instanceof $class_name) + { + log_message('debug', $class_name." has already been instantiated as '".$object_name."'. Second attempt aborted."); + return; + } + + show_error("Resource '".$object_name."' already exists and is not a ".$class_name." instance."); + } + + // Save the class name and object name + $this->_ci_classes[$object_name] = $class; + + // Instantiate the class + $CI->$object_name = isset($config) + ? new $class_name($config) + : new $class_name(); + } + + // -------------------------------------------------------------------- + + /** + * CI Autoloader + * + * Loads component listed in the config/autoload.php file. + * + * @used-by CI_Loader::initialize() + * @return void + */ + protected function _ci_autoloader() + { + if (file_exists(APPPATH.'config/autoload.php')) + { + include(APPPATH.'config/autoload.php'); + } + + if (file_exists(APPPATH.'config/'.ENVIRONMENT.'/autoload.php')) + { + include(APPPATH.'config/'.ENVIRONMENT.'/autoload.php'); + } + + if ( ! isset($autoload)) + { + return; + } + + // Autoload packages + if (isset($autoload['packages'])) + { + foreach ($autoload['packages'] as $package_path) + { + $this->add_package_path($package_path); + } + } + + // Load any custom config file + if (count($autoload['config']) > 0) + { + foreach ($autoload['config'] as $val) + { + $this->config($val); + } + } + + // Autoload helpers and languages + foreach (array('helper', 'language') as $type) + { + if (isset($autoload[$type]) && count($autoload[$type]) > 0) + { + $this->$type($autoload[$type]); + } + } + + // Autoload drivers + if (isset($autoload['drivers'])) + { + $this->driver($autoload['drivers']); + } + + // Load libraries + if (isset($autoload['libraries']) && count($autoload['libraries']) > 0) + { + // Load the database driver. + if (in_array('database', $autoload['libraries'])) + { + $this->database(); + $autoload['libraries'] = array_diff($autoload['libraries'], array('database')); + } + + // Load all other libraries + $this->library($autoload['libraries']); + } + + // Autoload models + if (isset($autoload['model'])) + { + $this->model($autoload['model']); + } + } + + // -------------------------------------------------------------------- + + /** + * Prepare variables for _ci_vars, to be later extract()-ed inside views + * + * Converts objects to associative arrays and filters-out internal + * variable names (i.e. keys prefixed with '_ci_'). + * + * @param mixed $vars + * @return array + */ + protected function _ci_prepare_view_vars($vars) + { + if ( ! is_array($vars)) + { + $vars = is_object($vars) + ? get_object_vars($vars) + : array(); + } + + foreach (array_keys($vars) as $key) + { + if (strncmp($key, '_ci_', 4) === 0) + { + unset($vars[$key]); + } + } + + return $vars; + } + + // -------------------------------------------------------------------- + + /** + * CI Component getter + * + * Get a reference to a specific library or model. + * + * @param string $component Component name + * @return bool + */ + protected function &_ci_get_component($component) + { + $CI =& get_instance(); + return $CI->$component; + } +} diff --git a/ci/system/core/Log.php b/ci/system/core/Log.php new file mode 100644 index 0000000..ca3e38a --- /dev/null +++ b/ci/system/core/Log.php @@ -0,0 +1,297 @@ + 1, 'DEBUG' => 2, 'INFO' => 3, 'ALL' => 4); + + /** + * mbstring.func_overload flag + * + * @var bool + */ + protected static $func_overload; + + // -------------------------------------------------------------------- + + /** + * Class constructor + * + * @return void + */ + public function __construct() + { + $config =& get_config(); + + isset(self::$func_overload) OR self::$func_overload = ( ! is_php('8.0') && extension_loaded('mbstring') && @ini_get('mbstring.func_overload')); + + $this->_log_path = ($config['log_path'] !== '') ? $config['log_path'] : APPPATH.'logs/'; + $this->_file_ext = (isset($config['log_file_extension']) && $config['log_file_extension'] !== '') + ? ltrim($config['log_file_extension'], '.') : 'php'; + + file_exists($this->_log_path) OR mkdir($this->_log_path, 0755, TRUE); + + if ( ! is_dir($this->_log_path) OR ! is_really_writable($this->_log_path)) + { + $this->_enabled = FALSE; + } + + if (is_numeric($config['log_threshold'])) + { + $this->_threshold = (int) $config['log_threshold']; + } + elseif (is_array($config['log_threshold'])) + { + $this->_threshold = 0; + $this->_threshold_array = array_flip($config['log_threshold']); + } + + if ( ! empty($config['log_date_format'])) + { + $this->_date_fmt = $config['log_date_format']; + } + + if ( ! empty($config['log_file_permissions']) && is_int($config['log_file_permissions'])) + { + $this->_file_permissions = $config['log_file_permissions']; + } + } + + // -------------------------------------------------------------------- + + /** + * Write Log File + * + * Generally this function will be called using the global log_message() function + * + * @param string $level The error level: 'error', 'debug' or 'info' + * @param string $msg The error message + * @return bool + */ + public function write_log($level, $msg) + { + if ($this->_enabled === FALSE) + { + return FALSE; + } + + $level = strtoupper($level); + + if (( ! isset($this->_levels[$level]) OR ($this->_levels[$level] > $this->_threshold)) + && ! isset($this->_threshold_array[$this->_levels[$level]])) + { + return FALSE; + } + + $filepath = $this->_log_path.'log-'.date('Y-m-d').'.'.$this->_file_ext; + $message = ''; + + if ( ! file_exists($filepath)) + { + $newfile = TRUE; + // Only add protection to php files + if ($this->_file_ext === 'php') + { + $message .= "\n\n"; + } + } + + if ( ! $fp = @fopen($filepath, 'ab')) + { + return FALSE; + } + + flock($fp, LOCK_EX); + + // Instantiating DateTime with microseconds appended to initial date is needed for proper support of this format + if (strpos($this->_date_fmt, 'u') !== FALSE) + { + $microtime_full = microtime(TRUE); + $microtime_short = sprintf("%06d", ($microtime_full - floor($microtime_full)) * 1000000); + $date = new DateTime(date('Y-m-d H:i:s.'.$microtime_short, $microtime_full)); + $date = $date->format($this->_date_fmt); + } + else + { + $date = date($this->_date_fmt); + } + + $message .= $this->_format_line($level, $date, $msg); + + for ($written = 0, $length = self::strlen($message); $written < $length; $written += $result) + { + if (($result = fwrite($fp, self::substr($message, $written))) === FALSE) + { + break; + } + } + + flock($fp, LOCK_UN); + fclose($fp); + + if (isset($newfile) && $newfile === TRUE) + { + chmod($filepath, $this->_file_permissions); + } + + return is_int($result); + } + + // -------------------------------------------------------------------- + + /** + * Format the log line. + * + * This is for extensibility of log formatting + * If you want to change the log format, extend the CI_Log class and override this method + * + * @param string $level The error level + * @param string $date Formatted date string + * @param string $message The log message + * @return string Formatted log line with a new line character at the end + */ + protected function _format_line($level, $date, $message) + { + return $level.' - '.$date.' --> '.$message.PHP_EOL; + } + + // -------------------------------------------------------------------- + + /** + * Byte-safe strlen() + * + * @param string $str + * @return int + */ + protected static function strlen($str) + { + return (self::$func_overload) + ? mb_strlen($str, '8bit') + : strlen($str); + } + + // -------------------------------------------------------------------- + + /** + * Byte-safe substr() + * + * @param string $str + * @param int $start + * @param int $length + * @return string + */ + protected static function substr($str, $start, $length = NULL) + { + if (self::$func_overload) + { + // mb_substr($str, $start, null, '8bit') returns an empty + // string on PHP 5.3 + isset($length) OR $length = ($start >= 0 ? self::strlen($str) - $start : -$start); + return mb_substr($str, $start, $length, '8bit'); + } + + return isset($length) + ? substr($str, $start, $length) + : substr($str, $start); + } +} diff --git a/ci/system/core/Model.php b/ci/system/core/Model.php new file mode 100644 index 0000000..b2bbbd4 --- /dev/null +++ b/ci/system/core/Model.php @@ -0,0 +1,77 @@ +$key; + } + +} diff --git a/ci/system/core/Output.php b/ci/system/core/Output.php new file mode 100644 index 0000000..a629a09 --- /dev/null +++ b/ci/system/core/Output.php @@ -0,0 +1,847 @@ +_zlib_oc = (bool) ini_get('zlib.output_compression'); + $this->_compress_output = ( + $this->_zlib_oc === FALSE + && config_item('compress_output') === TRUE + && extension_loaded('zlib') + ); + + isset(self::$func_overload) OR self::$func_overload = ( ! is_php('8.0') && extension_loaded('mbstring') && @ini_get('mbstring.func_overload')); + + // Get mime types for later + $this->mimes =& get_mimes(); + + log_message('info', 'Output Class Initialized'); + } + + // -------------------------------------------------------------------- + + /** + * Get Output + * + * Returns the current output string. + * + * @return string + */ + public function get_output() + { + return $this->final_output; + } + + // -------------------------------------------------------------------- + + /** + * Set Output + * + * Sets the output string. + * + * @param string $output Output data + * @return CI_Output + */ + public function set_output($output) + { + $this->final_output = $output; + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Append Output + * + * Appends data onto the output string. + * + * @param string $output Data to append + * @return CI_Output + */ + public function append_output($output) + { + $this->final_output .= $output; + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Set Header + * + * Lets you set a server header which will be sent with the final output. + * + * Note: If a file is cached, headers will not be sent. + * @todo We need to figure out how to permit headers to be cached. + * + * @param string $header Header + * @param bool $replace Whether to replace the old header value, if already set + * @return CI_Output + */ + public function set_header($header, $replace = TRUE) + { + // If zlib.output_compression is enabled it will compress the output, + // but it will not modify the content-length header to compensate for + // the reduction, causing the browser to hang waiting for more data. + // We'll just skip content-length in those cases. + if ($this->_zlib_oc && strncasecmp($header, 'content-length', 14) === 0) + { + return $this; + } + + $this->headers[] = array($header, $replace); + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Set Content-Type Header + * + * @param string $mime_type Extension of the file we're outputting + * @param string $charset Character set (default: NULL) + * @return CI_Output + */ + public function set_content_type($mime_type, $charset = NULL) + { + if (strpos($mime_type, '/') === FALSE) + { + $extension = ltrim($mime_type, '.'); + + // Is this extension supported? + if (isset($this->mimes[$extension])) + { + $mime_type =& $this->mimes[$extension]; + + if (is_array($mime_type)) + { + $mime_type = current($mime_type); + } + } + } + + $this->mime_type = $mime_type; + + if (empty($charset)) + { + $charset = config_item('charset'); + } + + $header = 'Content-Type: '.$mime_type + .(empty($charset) ? '' : '; charset='.$charset); + + $this->headers[] = array($header, TRUE); + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Get Current Content-Type Header + * + * @return string 'text/html', if not already set + */ + public function get_content_type() + { + for ($i = 0, $c = count($this->headers); $i < $c; $i++) + { + if (sscanf($this->headers[$i][0], 'Content-Type: %[^;]', $content_type) === 1) + { + return $content_type; + } + } + + return 'text/html'; + } + + // -------------------------------------------------------------------- + + /** + * Get Header + * + * @param string $header + * @return string + */ + public function get_header($header) + { + // We only need [x][0] from our multi-dimensional array + $header_lines = array_map(function ($headers) + { + return array_shift($headers); + }, $this->headers); + + $headers = array_merge( + $header_lines, + headers_list() + ); + + if (empty($headers) OR empty($header)) + { + return NULL; + } + + // Count backwards, in order to get the last matching header + for ($c = count($headers) - 1; $c > -1; $c--) + { + if (strncasecmp($header, $headers[$c], $l = self::strlen($header)) === 0) + { + return trim(self::substr($headers[$c], $l+1)); + } + } + + return NULL; + } + + // -------------------------------------------------------------------- + + /** + * Set HTTP Status Header + * + * As of version 1.7.2, this is an alias for common function + * set_status_header(). + * + * @param int $code Status code (default: 200) + * @param string $text Optional message + * @return CI_Output + */ + public function set_status_header($code = 200, $text = '') + { + set_status_header($code, $text); + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Enable/disable Profiler + * + * @param bool $val TRUE to enable or FALSE to disable + * @return CI_Output + */ + public function enable_profiler($val = TRUE) + { + $this->enable_profiler = is_bool($val) ? $val : TRUE; + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Set Profiler Sections + * + * Allows override of default/config settings for + * Profiler section display. + * + * @param array $sections Profiler sections + * @return CI_Output + */ + public function set_profiler_sections($sections) + { + if (isset($sections['query_toggle_count'])) + { + $this->_profiler_sections['query_toggle_count'] = (int) $sections['query_toggle_count']; + unset($sections['query_toggle_count']); + } + + foreach ($sections as $section => $enable) + { + $this->_profiler_sections[$section] = ($enable !== FALSE); + } + + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Set Cache + * + * @param int $time Cache expiration time in minutes + * @return CI_Output + */ + public function cache($time) + { + $this->cache_expiration = is_numeric($time) ? $time : 0; + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Display Output + * + * Processes and sends finalized output data to the browser along + * with any server headers and profile data. It also stops benchmark + * timers so the page rendering speed and memory usage can be shown. + * + * Note: All "view" data is automatically put into $this->final_output + * by controller class. + * + * @uses CI_Output::$final_output + * @param string $output Output data override + * @return void + */ + public function _display($output = '') + { + // Note: We use load_class() because we can't use $CI =& get_instance() + // since this function is sometimes called by the caching mechanism, + // which happens before the CI super object is available. + $BM =& load_class('Benchmark', 'core'); + $CFG =& load_class('Config', 'core'); + + // Grab the super object if we can. + if (class_exists('CI_Controller', FALSE)) + { + $CI =& get_instance(); + } + + // -------------------------------------------------------------------- + + // Set the output data + if ($output === '') + { + $output =& $this->final_output; + } + + // -------------------------------------------------------------------- + + // Do we need to write a cache file? Only if the controller does not have its + // own _output() method and we are not dealing with a cache file, which we + // can determine by the existence of the $CI object above + if ($this->cache_expiration > 0 && isset($CI) && ! method_exists($CI, '_output')) + { + $this->_write_cache($output); + } + + // -------------------------------------------------------------------- + + // Parse out the elapsed time and memory usage, + // then swap the pseudo-variables with the data + + $elapsed = $BM->elapsed_time('total_execution_time_start', 'total_execution_time_end'); + + if ($this->parse_exec_vars === TRUE) + { + $memory = round(memory_get_usage() / 1024 / 1024, 2).'MB'; + $output = str_replace(array('{elapsed_time}', '{memory_usage}'), array($elapsed, $memory), $output); + } + + // -------------------------------------------------------------------- + + // Is compression requested? + if (isset($CI) // This means that we're not serving a cache file, if we were, it would already be compressed + && $this->_compress_output === TRUE + && isset($_SERVER['HTTP_ACCEPT_ENCODING']) && strpos($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip') !== FALSE) + { + ob_start('ob_gzhandler'); + } + + // -------------------------------------------------------------------- + + // Are there any server headers to send? + if (count($this->headers) > 0) + { + foreach ($this->headers as $header) + { + @header($header[0], $header[1]); + } + } + + // -------------------------------------------------------------------- + + // Does the $CI object exist? + // If not we know we are dealing with a cache file so we'll + // simply echo out the data and exit. + if ( ! isset($CI)) + { + if ($this->_compress_output === TRUE) + { + if (isset($_SERVER['HTTP_ACCEPT_ENCODING']) && strpos($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip') !== FALSE) + { + header('Content-Encoding: gzip'); + header('Content-Length: '.self::strlen($output)); + } + else + { + // User agent doesn't support gzip compression, + // so we'll have to decompress our cache + $output = gzinflate(self::substr($output, 10, -8)); + } + } + + echo $output; + log_message('info', 'Final output sent to browser'); + log_message('debug', 'Total execution time: '.$elapsed); + return; + } + + // -------------------------------------------------------------------- + + // Do we need to generate profile data? + // If so, load the Profile class and run it. + if ($this->enable_profiler === TRUE) + { + $CI->load->library('profiler'); + if ( ! empty($this->_profiler_sections)) + { + $CI->profiler->set_sections($this->_profiler_sections); + } + + // If the output data contains closing and tags + // we will remove them and add them back after we insert the profile data + $output = preg_replace('|.*?|is', '', $output, -1, $count).$CI->profiler->run(); + if ($count > 0) + { + $output .= ''; + } + } + + // Does the controller contain a function named _output()? + // If so send the output there. Otherwise, echo it. + if (method_exists($CI, '_output')) + { + $CI->_output($output); + } + else + { + echo $output; // Send it to the browser! + } + + log_message('info', 'Final output sent to browser'); + log_message('debug', 'Total execution time: '.$elapsed); + } + + // -------------------------------------------------------------------- + + /** + * Write Cache + * + * @param string $output Output data to cache + * @return void + */ + public function _write_cache($output) + { + $CI =& get_instance(); + $path = $CI->config->item('cache_path'); + $cache_path = ($path === '') ? APPPATH.'cache/' : $path; + + if ( ! is_dir($cache_path) OR ! is_really_writable($cache_path)) + { + log_message('error', 'Unable to write cache file: '.$cache_path); + return; + } + + $uri = $CI->config->item('base_url') + .$CI->config->item('index_page') + .$CI->uri->uri_string(); + + if (($cache_query_string = $CI->config->item('cache_query_string')) && ! empty($_SERVER['QUERY_STRING'])) + { + if (is_array($cache_query_string)) + { + $uri .= '?'.http_build_query(array_intersect_key($_GET, array_flip($cache_query_string))); + } + else + { + $uri .= '?'.$_SERVER['QUERY_STRING']; + } + } + + $cache_path .= md5($uri); + + if ( ! $fp = @fopen($cache_path, 'w+b')) + { + log_message('error', 'Unable to write cache file: '.$cache_path); + return; + } + + if ( ! flock($fp, LOCK_EX)) + { + log_message('error', 'Unable to secure a file lock for file at: '.$cache_path); + fclose($fp); + return; + } + + // If output compression is enabled, compress the cache + // itself, so that we don't have to do that each time + // we're serving it + if ($this->_compress_output === TRUE) + { + $output = gzencode($output); + + if ($this->get_header('content-type') === NULL) + { + $this->set_content_type($this->mime_type); + } + } + + $expire = time() + ($this->cache_expiration * 60); + + // Put together our serialized info. + $cache_info = serialize(array( + 'expire' => $expire, + 'headers' => $this->headers + )); + + $output = $cache_info.'ENDCI--->'.$output; + + for ($written = 0, $length = self::strlen($output); $written < $length; $written += $result) + { + if (($result = fwrite($fp, self::substr($output, $written))) === FALSE) + { + break; + } + } + + flock($fp, LOCK_UN); + fclose($fp); + + if ( ! is_int($result)) + { + @unlink($cache_path); + log_message('error', 'Unable to write the complete cache content at: '.$cache_path); + return; + } + + chmod($cache_path, 0640); + log_message('debug', 'Cache file written: '.$cache_path); + + // Send HTTP cache-control headers to browser to match file cache settings. + $this->set_cache_header($_SERVER['REQUEST_TIME'], $expire); + } + + // -------------------------------------------------------------------- + + /** + * Update/serve cached output + * + * @uses CI_Config + * @uses CI_URI + * + * @param object &$CFG CI_Config class instance + * @param object &$URI CI_URI class instance + * @return bool TRUE on success or FALSE on failure + */ + public function _display_cache(&$CFG, &$URI) + { + $cache_path = ($CFG->item('cache_path') === '') ? APPPATH.'cache/' : $CFG->item('cache_path'); + + // Build the file path. The file name is an MD5 hash of the full URI + $uri = $CFG->item('base_url').$CFG->item('index_page').$URI->uri_string; + + if (($cache_query_string = $CFG->item('cache_query_string')) && ! empty($_SERVER['QUERY_STRING'])) + { + if (is_array($cache_query_string)) + { + $uri .= '?'.http_build_query(array_intersect_key($_GET, array_flip($cache_query_string))); + } + else + { + $uri .= '?'.$_SERVER['QUERY_STRING']; + } + } + + $filepath = $cache_path.md5($uri); + + if ( ! file_exists($filepath) OR ! $fp = @fopen($filepath, 'rb')) + { + return FALSE; + } + + flock($fp, LOCK_SH); + + $cache = (filesize($filepath) > 0) ? fread($fp, filesize($filepath)) : ''; + + flock($fp, LOCK_UN); + fclose($fp); + + // Look for embedded serialized file info. + if ( ! preg_match('/^(.*)ENDCI--->/', $cache, $match)) + { + return FALSE; + } + + $cache_info = unserialize($match[1]); + $expire = $cache_info['expire']; + + $last_modified = filemtime($filepath); + + // Has the file expired? + if ($_SERVER['REQUEST_TIME'] >= $expire && is_really_writable($cache_path)) + { + // If so we'll delete it. + @unlink($filepath); + log_message('debug', 'Cache file has expired. File deleted.'); + return FALSE; + } + + // Send the HTTP cache control headers + $this->set_cache_header($last_modified, $expire); + + // Add headers from cache file. + foreach ($cache_info['headers'] as $header) + { + $this->set_header($header[0], $header[1]); + } + + // Display the cache + $this->_display(self::substr($cache, self::strlen($match[0]))); + log_message('debug', 'Cache file is current. Sending it to browser.'); + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Delete cache + * + * @param string $uri URI string + * @return bool + */ + public function delete_cache($uri = '') + { + $CI =& get_instance(); + $cache_path = $CI->config->item('cache_path'); + if ($cache_path === '') + { + $cache_path = APPPATH.'cache/'; + } + + if ( ! is_dir($cache_path)) + { + log_message('error', 'Unable to find cache path: '.$cache_path); + return FALSE; + } + + if (empty($uri)) + { + $uri = $CI->uri->uri_string(); + + if (($cache_query_string = $CI->config->item('cache_query_string')) && ! empty($_SERVER['QUERY_STRING'])) + { + if (is_array($cache_query_string)) + { + $uri .= '?'.http_build_query(array_intersect_key($_GET, array_flip($cache_query_string))); + } + else + { + $uri .= '?'.$_SERVER['QUERY_STRING']; + } + } + } + + $cache_path .= md5($CI->config->item('base_url').$CI->config->item('index_page').ltrim($uri, '/')); + + if ( ! @unlink($cache_path)) + { + log_message('error', 'Unable to delete cache file for '.$uri); + return FALSE; + } + + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Set Cache Header + * + * Set the HTTP headers to match the server-side file cache settings + * in order to reduce bandwidth. + * + * @param int $last_modified Timestamp of when the page was last modified + * @param int $expiration Timestamp of when should the requested page expire from cache + * @return void + */ + public function set_cache_header($last_modified, $expiration) + { + $max_age = $expiration - $_SERVER['REQUEST_TIME']; + + if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) && $last_modified <= strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE'])) + { + $this->set_status_header(304); + exit; + } + + header('Pragma: public'); + header('Cache-Control: max-age='.$max_age.', public'); + header('Expires: '.gmdate('D, d M Y H:i:s', $expiration).' GMT'); + header('Last-modified: '.gmdate('D, d M Y H:i:s', $last_modified).' GMT'); + } + + // -------------------------------------------------------------------- + + /** + * Byte-safe strlen() + * + * @param string $str + * @return int + */ + protected static function strlen($str) + { + return (self::$func_overload) + ? mb_strlen($str, '8bit') + : strlen($str); + } + + // -------------------------------------------------------------------- + + /** + * Byte-safe substr() + * + * @param string $str + * @param int $start + * @param int $length + * @return string + */ + protected static function substr($str, $start, $length = NULL) + { + if (self::$func_overload) + { + // mb_substr($str, $start, null, '8bit') returns an empty + // string on PHP 5.3 + isset($length) OR $length = ($start >= 0 ? self::strlen($str) - $start : -$start); + return mb_substr($str, $start, $length, '8bit'); + } + + return isset($length) + ? substr($str, $start, $length) + : substr($str, $start); + } +} diff --git a/ci/system/core/Router.php b/ci/system/core/Router.php new file mode 100644 index 0000000..ab1f44e --- /dev/null +++ b/ci/system/core/Router.php @@ -0,0 +1,516 @@ +config =& load_class('Config', 'core'); + $this->uri =& load_class('URI', 'core'); + + $this->enable_query_strings = ( ! is_cli() && $this->config->item('enable_query_strings') === TRUE); + + // If a directory override is configured, it has to be set before any dynamic routing logic + is_array($routing) && isset($routing['directory']) && $this->set_directory($routing['directory']); + $this->_set_routing(); + + // Set any routing overrides that may exist in the main index file + if (is_array($routing)) + { + empty($routing['controller']) OR $this->set_class($routing['controller']); + empty($routing['function']) OR $this->set_method($routing['function']); + } + + log_message('info', 'Router Class Initialized'); + } + + // -------------------------------------------------------------------- + + /** + * Set route mapping + * + * Determines what should be served based on the URI request, + * as well as any "routes" that have been set in the routing config file. + * + * @return void + */ + protected function _set_routing() + { + // Load the routes.php file. It would be great if we could + // skip this for enable_query_strings = TRUE, but then + // default_controller would be empty ... + if (file_exists(APPPATH.'config/routes.php')) + { + include(APPPATH.'config/routes.php'); + } + + if (file_exists(APPPATH.'config/'.ENVIRONMENT.'/routes.php')) + { + include(APPPATH.'config/'.ENVIRONMENT.'/routes.php'); + } + + // Validate & get reserved routes + if (isset($route) && is_array($route)) + { + isset($route['default_controller']) && $this->default_controller = $route['default_controller']; + isset($route['translate_uri_dashes']) && $this->translate_uri_dashes = $route['translate_uri_dashes']; + unset($route['default_controller'], $route['translate_uri_dashes']); + $this->routes = $route; + } + + // Are query strings enabled in the config file? Normally CI doesn't utilize query strings + // since URI segments are more search-engine friendly, but they can optionally be used. + // If this feature is enabled, we will gather the directory/class/method a little differently + if ($this->enable_query_strings) + { + // If the directory is set at this time, it means an override exists, so skip the checks + if ( ! isset($this->directory)) + { + $_d = $this->config->item('directory_trigger'); + $_d = isset($_GET[$_d]) ? trim($_GET[$_d], " \t\n\r\0\x0B/") : ''; + + if ($_d !== '') + { + $this->uri->filter_uri($_d); + $this->set_directory($_d); + } + } + + $_c = trim($this->config->item('controller_trigger')); + if ( ! empty($_GET[$_c])) + { + $this->uri->filter_uri($_GET[$_c]); + $this->set_class($_GET[$_c]); + + $_f = trim($this->config->item('function_trigger')); + if ( ! empty($_GET[$_f])) + { + $this->uri->filter_uri($_GET[$_f]); + $this->set_method($_GET[$_f]); + } + + $this->uri->rsegments = array( + 1 => $this->class, + 2 => $this->method + ); + } + else + { + $this->_set_default_controller(); + } + + // Routing rules don't apply to query strings and we don't need to detect + // directories, so we're done here + return; + } + + // Is there anything to parse? + if ($this->uri->uri_string !== '') + { + $this->_parse_routes(); + } + else + { + $this->_set_default_controller(); + } + } + + // -------------------------------------------------------------------- + + /** + * Set request route + * + * Takes an array of URI segments as input and sets the class/method + * to be called. + * + * @used-by CI_Router::_parse_routes() + * @param array $segments URI segments + * @return void + */ + protected function _set_request($segments = array()) + { + $segments = $this->_validate_request($segments); + // If we don't have any segments left - try the default controller; + // WARNING: Directories get shifted out of the segments array! + if (empty($segments)) + { + $this->_set_default_controller(); + return; + } + + if ($this->translate_uri_dashes === TRUE) + { + $segments[0] = str_replace('-', '_', $segments[0]); + if (isset($segments[1])) + { + $segments[1] = str_replace('-', '_', $segments[1]); + } + } + + $this->set_class($segments[0]); + if (isset($segments[1])) + { + $this->set_method($segments[1]); + } + else + { + $segments[1] = 'index'; + } + + array_unshift($segments, NULL); + unset($segments[0]); + $this->uri->rsegments = $segments; + } + + // -------------------------------------------------------------------- + + /** + * Set default controller + * + * @return void + */ + protected function _set_default_controller() + { + if (empty($this->default_controller)) + { + show_error('Unable to determine what should be displayed. A default route has not been specified in the routing file.'); + } + + // Is the method being specified? + if (sscanf($this->default_controller, '%[^/]/%s', $class, $method) !== 2) + { + $method = 'index'; + } + + if ( ! file_exists(APPPATH.'controllers/'.$this->directory.ucfirst($class).'.php')) + { + // This will trigger 404 later + return; + } + + $this->set_class($class); + $this->set_method($method); + + // Assign routed segments, index starting from 1 + $this->uri->rsegments = array( + 1 => $class, + 2 => $method + ); + + log_message('debug', 'No URI present. Default controller set.'); + } + + // -------------------------------------------------------------------- + + /** + * Validate request + * + * Attempts validate the URI request and determine the controller path. + * + * @used-by CI_Router::_set_request() + * @param array $segments URI segments + * @return mixed URI segments + */ + protected function _validate_request($segments) + { + $c = count($segments); + $directory_override = isset($this->directory); + + // Loop through our segments and return as soon as a controller + // is found or when such a directory doesn't exist + while ($c-- > 0) + { + $test = $this->directory + .ucfirst($this->translate_uri_dashes === TRUE ? str_replace('-', '_', $segments[0]) : $segments[0]); + + if ( ! file_exists(APPPATH.'controllers/'.$test.'.php') + && $directory_override === FALSE + && is_dir(APPPATH.'controllers/'.$this->directory.$segments[0]) + ) + { + $this->set_directory(array_shift($segments), TRUE); + continue; + } + + return $segments; + } + + // This means that all segments were actually directories + return $segments; + } + + // -------------------------------------------------------------------- + + /** + * Parse Routes + * + * Matches any routes that may exist in the config/routes.php file + * against the URI to determine if the class/method need to be remapped. + * + * @return void + */ + protected function _parse_routes() + { + // Turn the segment array into a URI string + $uri = implode('/', $this->uri->segments); + + // Get HTTP verb + $http_verb = isset($_SERVER['REQUEST_METHOD']) ? strtolower($_SERVER['REQUEST_METHOD']) : 'cli'; + + // Loop through the route array looking for wildcards + foreach ($this->routes as $key => $val) + { + // Check if route format is using HTTP verbs + if (is_array($val)) + { + $val = array_change_key_case($val, CASE_LOWER); + if (isset($val[$http_verb])) + { + $val = $val[$http_verb]; + } + else + { + continue; + } + } + + // Convert wildcards to RegEx + $key = str_replace(array(':any', ':num'), array('[^/]+', '[0-9]+'), $key); + + // Does the RegEx match? + if (preg_match('#^'.$key.'$#', $uri, $matches)) + { + // Are we using callbacks to process back-references? + if ( ! is_string($val) && is_callable($val)) + { + // Remove the original string from the matches array. + array_shift($matches); + + // Execute the callback using the values in matches as its parameters. + $val = call_user_func_array($val, $matches); + } + // Are we using the default routing method for back-references? + elseif (strpos($val, '$') !== FALSE && strpos($key, '(') !== FALSE) + { + $val = preg_replace('#^'.$key.'$#', $val, $uri); + } + + $this->_set_request(explode('/', $val)); + return; + } + } + + // If we got this far it means we didn't encounter a + // matching route so we'll set the site default route + $this->_set_request(array_values($this->uri->segments)); + } + + // -------------------------------------------------------------------- + + /** + * Set class name + * + * @param string $class Class name + * @return void + */ + public function set_class($class) + { + $this->class = str_replace(array('/', '.'), '', $class); + } + + // -------------------------------------------------------------------- + + /** + * Fetch the current class + * + * @deprecated 3.0.0 Read the 'class' property instead + * @return string + */ + public function fetch_class() + { + return $this->class; + } + + // -------------------------------------------------------------------- + + /** + * Set method name + * + * @param string $method Method name + * @return void + */ + public function set_method($method) + { + $this->method = $method; + } + + // -------------------------------------------------------------------- + + /** + * Fetch the current method + * + * @deprecated 3.0.0 Read the 'method' property instead + * @return string + */ + public function fetch_method() + { + return $this->method; + } + + // -------------------------------------------------------------------- + + /** + * Set directory name + * + * @param string $dir Directory name + * @param bool $append Whether we're appending rather than setting the full value + * @return void + */ + public function set_directory($dir, $append = FALSE) + { + if ($append !== TRUE OR empty($this->directory)) + { + $this->directory = str_replace('.', '', trim($dir, '/')).'/'; + } + else + { + $this->directory .= str_replace('.', '', trim($dir, '/')).'/'; + } + } + + // -------------------------------------------------------------------- + + /** + * Fetch directory + * + * Feches the sub-directory (if any) that contains the requested + * controller class. + * + * @deprecated 3.0.0 Read the 'directory' property instead + * @return string + */ + public function fetch_directory() + { + return $this->directory; + } + +} diff --git a/ci/system/core/Security.php b/ci/system/core/Security.php new file mode 100644 index 0000000..e7772e0 --- /dev/null +++ b/ci/system/core/Security.php @@ -0,0 +1,1111 @@ +', '<', '>', + "'", '"', '&', '$', '#', + '{', '}', '[', ']', '=', + ';', '?', '%20', '%22', + '%3c', // < + '%253c', // < + '%3e', // > + '%0e', // > + '%28', // ( + '%29', // ) + '%2528', // ( + '%26', // & + '%24', // $ + '%3f', // ? + '%3b', // ; + '%3d' // = + ); + + /** + * Character set + * + * Will be overridden by the constructor. + * + * @var string + */ + public $charset = 'UTF-8'; + + /** + * XSS Hash + * + * Random Hash for protecting URLs. + * + * @var string + */ + protected $_xss_hash; + + /** + * CSRF Hash + * + * Random hash for Cross Site Request Forgery protection cookie + * + * @var string + */ + protected $_csrf_hash; + + /** + * CSRF Expire time + * + * Expiration time for Cross Site Request Forgery protection cookie. + * Defaults to two hours (in seconds). + * + * @var int + */ + protected $_csrf_expire = 7200; + + /** + * CSRF Token name + * + * Token name for Cross Site Request Forgery protection cookie. + * + * @var string + */ + protected $_csrf_token_name = 'ci_csrf_token'; + + /** + * CSRF Cookie name + * + * Cookie name for Cross Site Request Forgery protection cookie. + * + * @var string + */ + protected $_csrf_cookie_name = 'ci_csrf_token'; + + /** + * List of never allowed strings + * + * @var array + */ + protected $_never_allowed_str = array( + 'document.cookie' => '[removed]', + '(document).cookie' => '[removed]', + 'document.write' => '[removed]', + '(document).write' => '[removed]', + '.parentNode' => '[removed]', + '.innerHTML' => '[removed]', + '-moz-binding' => '[removed]', + '' => '-->', + ' '<![CDATA[', + '' => '<comment>', + '<%' => '<%' + ); + + /** + * List of never allowed regex replacements + * + * @var array + */ + protected $_never_allowed_regex = array( + 'javascript\s*:', + '(\(?document\)?|\(?window\)?(\.document)?)\.(location|on\w*)', + 'expression\s*(\(|&\#40;)', // CSS and IE + 'vbscript\s*:', // IE, surprise! + 'wscript\s*:', // IE + 'jscript\s*:', // IE + 'vbs\s*:', // IE + 'Redirect\s+30\d', + "([\"'])?data\s*:[^\\1]*?base64[^\\1]*?,[^\\1]*?\\1?" + ); + + /** + * Class constructor + * + * @return void + */ + public function __construct() + { + // Is CSRF protection enabled? + if (config_item('csrf_protection')) + { + // CSRF config + foreach (array('csrf_expire', 'csrf_token_name', 'csrf_cookie_name') as $key) + { + if (NULL !== ($val = config_item($key))) + { + $this->{'_'.$key} = $val; + } + } + + // Append application specific cookie prefix + if ($cookie_prefix = config_item('cookie_prefix')) + { + $this->_csrf_cookie_name = $cookie_prefix.$this->_csrf_cookie_name; + } + + // Set the CSRF hash + $this->_csrf_set_hash(); + } + + $this->charset = strtoupper((string) config_item('charset')); + + log_message('info', 'Security Class Initialized'); + } + + // -------------------------------------------------------------------- + + /** + * CSRF Verify + * + * @return CI_Security + */ + public function csrf_verify() + { + // If it's not a POST request we will set the CSRF cookie + if (strtoupper($_SERVER['REQUEST_METHOD']) !== 'POST') + { + return $this->csrf_set_cookie(); + } + + // Check if URI has been whitelisted from CSRF checks + if ($exclude_uris = config_item('csrf_exclude_uris')) + { + $uri = load_class('URI', 'core'); + foreach ($exclude_uris as $excluded) + { + if (preg_match('#^'.$excluded.'$#i'.(UTF8_ENABLED ? 'u' : ''), $uri->uri_string())) + { + return $this; + } + } + } + + // Check CSRF token validity, but don't error on mismatch just yet - we'll want to regenerate + $valid = isset($_POST[$this->_csrf_token_name], $_COOKIE[$this->_csrf_cookie_name]) + && is_string($_POST[$this->_csrf_token_name]) && is_string($_COOKIE[$this->_csrf_cookie_name]) + && hash_equals($_POST[$this->_csrf_token_name], $_COOKIE[$this->_csrf_cookie_name]); + + // We kill this since we're done and we don't want to pollute the _POST array + unset($_POST[$this->_csrf_token_name]); + + // Regenerate on every submission? + if (config_item('csrf_regenerate')) + { + // Nothing should last forever + unset($_COOKIE[$this->_csrf_cookie_name]); + $this->_csrf_hash = NULL; + } + + $this->_csrf_set_hash(); + $this->csrf_set_cookie(); + + if ($valid !== TRUE) + { + $this->csrf_show_error(); + } + + log_message('info', 'CSRF token verified'); + return $this; + } + + // -------------------------------------------------------------------- + + /** + * CSRF Set Cookie + * + * @codeCoverageIgnore + * @return CI_Security + */ + public function csrf_set_cookie() + { + $expire = time() + $this->_csrf_expire; + $secure_cookie = (bool) config_item('cookie_secure'); + + if ($secure_cookie && ! is_https()) + { + return FALSE; + } + + if (is_php('7.3')) + { + setcookie( + $this->_csrf_cookie_name, + $this->_csrf_hash, + array( + 'expires' => $expire, + 'path' => config_item('cookie_path'), + 'domain' => config_item('cookie_domain'), + 'secure' => $secure_cookie, + 'httponly' => config_item('cookie_httponly'), + 'samesite' => 'Strict' + ) + ); + } + else + { + $domain = trim(config_item('cookie_domain')); + header('Set-Cookie: '.$this->_csrf_cookie_name.'='.$this->_csrf_hash + .'; Expires='.gmdate('D, d-M-Y H:i:s T', $expire) + .'; Max-Age='.$this->_csrf_expire + .'; Path='.rawurlencode(config_item('cookie_path')) + .($domain === '' ? '' : '; Domain='.$domain) + .($secure_cookie ? '; Secure' : '') + .(config_item('cookie_httponly') ? '; HttpOnly' : '') + .'; SameSite=Strict' + ); + } + + log_message('info', 'CSRF cookie sent'); + + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Show CSRF Error + * + * @return void + */ + public function csrf_show_error() + { + show_error('The action you have requested is not allowed.', 403); + } + + // -------------------------------------------------------------------- + + /** + * Get CSRF Hash + * + * @see CI_Security::$_csrf_hash + * @return string CSRF hash + */ + public function get_csrf_hash() + { + return $this->_csrf_hash; + } + + // -------------------------------------------------------------------- + + /** + * Get CSRF Token Name + * + * @see CI_Security::$_csrf_token_name + * @return string CSRF token name + */ + public function get_csrf_token_name() + { + return $this->_csrf_token_name; + } + + // -------------------------------------------------------------------- + + /** + * XSS Clean + * + * Sanitizes data so that Cross Site Scripting Hacks can be + * prevented. This method does a fair amount of work but + * it is extremely thorough, designed to prevent even the + * most obscure XSS attempts. Nothing is ever 100% foolproof, + * of course, but I haven't been able to get anything passed + * the filter. + * + * Note: Should only be used to deal with data upon submission. + * It's not something that should be used for general + * runtime processing. + * + * @link http://channel.bitflux.ch/wiki/XSS_Prevention + * Based in part on some code and ideas from Bitflux. + * + * @link http://ha.ckers.org/xss.html + * To help develop this script I used this great list of + * vulnerabilities along with a few other hacks I've + * harvested from examining vulnerabilities in other programs. + * + * @param string|string[] $str Input data + * @param bool $is_image Whether the input is an image + * @return string + */ + public function xss_clean($str, $is_image = FALSE) + { + // Is the string an array? + if (is_array($str)) + { + foreach ($str as $key => &$value) + { + $str[$key] = $this->xss_clean($value); + } + + return $str; + } + + // Remove Invisible Characters + $str = remove_invisible_characters($str); + + /* + * URL Decode + * + * Just in case stuff like this is submitted: + * + * Google + * + * Note: Use rawurldecode() so it does not remove plus signs + */ + if (stripos($str, '%') !== false) + { + do + { + $oldstr = $str; + $str = rawurldecode($str); + $str = preg_replace_callback('#%(?:\s*[0-9a-f]){2,}#i', array($this, '_urldecodespaces'), $str); + } + while ($oldstr !== $str); + unset($oldstr); + } + + /* + * Convert character entities to ASCII + * + * This permits our tests below to work reliably. + * We only convert entities that are within tags since + * these are the ones that will pose security problems. + */ + $str = preg_replace_callback("/[^a-z0-9>]+[a-z0-9]+=([\'\"]).*?\\1/si", array($this, '_convert_attribute'), $str); + $str = preg_replace_callback('/<\w+.*/si', array($this, '_decode_entity'), $str); + + // Remove Invisible Characters Again! + $str = remove_invisible_characters($str); + + /* + * Convert all tabs to spaces + * + * This prevents strings like this: ja vascript + * NOTE: we deal with spaces between characters later. + * NOTE: preg_replace was found to be amazingly slow here on + * large blocks of data, so we use str_replace. + */ + $str = str_replace("\t", ' ', $str); + + // Capture converted string for later comparison + $converted_string = $str; + + // Remove Strings that are never allowed + $str = $this->_do_never_allowed($str); + + /* + * Makes PHP tags safe + * + * Note: XML tags are inadvertently replaced too: + * + * '), array('<?', '?>'), $str); + } + + /* + * Compact any exploded words + * + * This corrects words like: j a v a s c r i p t + * These words are compacted back to their correct state. + */ + $words = array( + 'javascript', 'expression', 'vbscript', 'jscript', 'wscript', + 'vbs', 'script', 'base64', 'applet', 'alert', 'document', + 'write', 'cookie', 'window', 'confirm', 'prompt', 'eval' + ); + + foreach ($words as $word) + { + $word = implode('\s*', str_split($word)).'\s*'; + + // We only want to do this when it is followed by a non-word character + // That way valid stuff like "dealer to" does not become "dealerto" + $str = preg_replace_callback('#('.substr($word, 0, -3).')(\W)#is', array($this, '_compact_exploded_words'), $str); + } + + /* + * Remove disallowed Javascript in links or img tags + * We used to do some version comparisons and use of stripos(), + * but it is dog slow compared to these simplified non-capturing + * preg_match(), especially if the pattern exists in the string + * + * Note: It was reported that not only space characters, but all in + * the following pattern can be parsed as separators between a tag name + * and its attributes: [\d\s"\'`;,\/\=\(\x00\x0B\x09\x0C] + * ... however, remove_invisible_characters() above already strips the + * hex-encoded ones, so we'll skip them below. + */ + do + { + $original = $str; + + if (preg_match('/]+([^>]*?)(?:>|$)#si', array($this, '_js_link_removal'), $str); + } + + if (preg_match('/]*?)(?:\s?/?>|$)#si', array($this, '_js_img_removal'), $str); + } + + if (preg_match('/script|xss/i', $str)) + { + $str = preg_replace('##si', '[removed]', $str); + } + } + while ($original !== $str); + unset($original); + + /* + * Sanitize naughty HTML elements + * + * If a tag containing any of the words in the list + * below is found, the tag gets converted to entities. + * + * So this: + * Becomes: <blink> + */ + $pattern = '#' + .'<((?/*\s*)((?[a-z0-9]+)(?=[^a-z0-9]|$)|.+)' // tag start and name, followed by a non-tag character + .'[^\s\042\047a-z0-9>/=]*' // a valid attribute character immediately after the tag would count as a separator + // optional attributes + .'(?(?:[\s\042\047/=]*' // non-attribute characters, excluding > (tag close) for obvious reasons + .'[^\s\042\047>/=]+' // attribute characters + // optional attribute-value + .'(?:\s*=' // attribute-value separator + .'(?:[^\s\042\047=><`]+|\s*\042[^\042]*\042|\s*\047[^\047]*\047|\s*(?U:[^\s\042\047=><`]*))' // single, double or non-quoted value + .')?' // end optional attribute-value group + .')*)' // end optional attributes group + .'[^>]*)(?\>)?#isS'; + + // Note: It would be nice to optimize this for speed, BUT + // only matching the naughty elements here results in + // false positives and in turn - vulnerabilities! + do + { + $old_str = $str; + $str = preg_replace_callback($pattern, array($this, '_sanitize_naughty_html'), $str); + } + while ($old_str !== $str); + unset($old_str); + + /* + * Sanitize naughty scripting elements + * + * Similar to above, only instead of looking for + * tags it looks for PHP and JavaScript commands + * that are disallowed. Rather than removing the + * code, it simply converts the parenthesis to entities + * rendering the code un-executable. + * + * For example: eval('some code') + * Becomes: eval('some code') + */ + $str = preg_replace( + '#(alert|prompt|confirm|cmd|passthru|eval|exec|expression|system|fopen|fsockopen|file|file_get_contents|readfile|unlink)(\s*)\((.*?)\)#si', + '\\1\\2(\\3)', + $str + ); + + // Same thing, but for "tag functions" (e.g. eval`some code`) + // See https://github.com/bcit-ci/CodeIgniter/issues/5420 + $str = preg_replace( + '#(alert|prompt|confirm|cmd|passthru|eval|exec|expression|system|fopen|fsockopen|file|file_get_contents|readfile|unlink)(\s*)`(.*?)`#si', + '\\1\\2`\\3`', + $str + ); + + // Final clean up + // This adds a bit of extra precaution in case + // something got through the above filters + $str = $this->_do_never_allowed($str); + + /* + * Images are Handled in a Special Way + * - Essentially, we want to know that after all of the character + * conversion is done whether any unwanted, likely XSS, code was found. + * If not, we return TRUE, as the image is clean. + * However, if the string post-conversion does not matched the + * string post-removal of XSS, then it fails, as there was unwanted XSS + * code found and removed/changed during processing. + */ + if ($is_image === TRUE) + { + return ($str === $converted_string); + } + + return $str; + } + + // -------------------------------------------------------------------- + + /** + * XSS Hash + * + * Generates the XSS hash if needed and returns it. + * + * @see CI_Security::$_xss_hash + * @return string XSS hash + */ + public function xss_hash() + { + if ($this->_xss_hash === NULL) + { + $rand = $this->get_random_bytes(16); + $this->_xss_hash = ($rand === FALSE) + ? md5(uniqid(mt_rand(), TRUE)) + : bin2hex($rand); + } + + return $this->_xss_hash; + } + + // -------------------------------------------------------------------- + + /** + * Get random bytes + * + * @param int $length Output length + * @return string + */ + public function get_random_bytes($length) + { + if (empty($length) OR ! ctype_digit((string) $length)) + { + return FALSE; + } + + if (function_exists('random_bytes')) + { + try + { + // The cast is required to avoid TypeError + return random_bytes((int) $length); + } + catch (Exception $e) + { + // If random_bytes() can't do the job, we can't either ... + // There's no point in using fallbacks. + log_message('error', $e->getMessage()); + return FALSE; + } + } + + // Unfortunately, none of the following PRNGs is guaranteed to exist ... + if (defined('MCRYPT_DEV_URANDOM') && ($output = mcrypt_create_iv($length, MCRYPT_DEV_URANDOM)) !== FALSE) + { + return $output; + } + + if (is_readable('/dev/urandom') && ($fp = fopen('/dev/urandom', 'rb')) !== FALSE) + { + // Try not to waste entropy ... + is_php('5.4') && stream_set_chunk_size($fp, $length); + $output = fread($fp, $length); + fclose($fp); + if ($output !== FALSE) + { + return $output; + } + } + + if (function_exists('openssl_random_pseudo_bytes')) + { + return openssl_random_pseudo_bytes($length); + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * HTML Entities Decode + * + * A replacement for html_entity_decode() + * + * The reason we are not using html_entity_decode() by itself is because + * while it is not technically correct to leave out the semicolon + * at the end of an entity most browsers will still interpret the entity + * correctly. html_entity_decode() does not convert entities without + * semicolons, so we are left with our own little solution here. Bummer. + * + * @link http://php.net/html-entity-decode + * + * @param string $str Input + * @param string $charset Character set + * @return string + */ + public function entity_decode($str, $charset = NULL) + { + if (strpos($str, '&') === FALSE) + { + return $str; + } + + static $_entities; + + isset($charset) OR $charset = $this->charset; + $flag = is_php('5.4') + ? ENT_COMPAT | ENT_HTML5 + : ENT_COMPAT; + + if ( ! isset($_entities)) + { + $_entities = array_map('strtolower', get_html_translation_table(HTML_ENTITIES, $flag, $charset)); + + // If we're not on PHP 5.4+, add the possibly dangerous HTML 5 + // entities to the array manually + if ($flag === ENT_COMPAT) + { + $_entities[':'] = ':'; + $_entities['('] = '('; + $_entities[')'] = ')'; + $_entities["\n"] = ' '; + $_entities["\t"] = ' '; + } + } + + do + { + $str_compare = $str; + + // Decode standard entities, avoiding false positives + if (preg_match_all('/&[a-z]{2,}(?![a-z;])/i', $str, $matches)) + { + $replace = array(); + $matches = array_unique(array_map('strtolower', $matches[0])); + foreach ($matches as &$match) + { + if (($char = array_search($match.';', $_entities, TRUE)) !== FALSE) + { + $replace[$match] = $char; + } + } + + $str = str_replace(array_keys($replace), array_values($replace), $str); + } + + // Decode numeric & UTF16 two byte entities + $str = html_entity_decode( + preg_replace('/(&#(?:x0*[0-9a-f]{2,5}(?![0-9a-f;])|(?:0*\d{2,4}(?![0-9;]))))/iS', '$1;', $str), + $flag, + $charset + ); + + if ($flag === ENT_COMPAT) + { + $str = str_replace(array_values($_entities), array_keys($_entities), $str); + } + } + while ($str_compare !== $str); + return $str; + } + + // -------------------------------------------------------------------- + + /** + * Sanitize Filename + * + * @param string $str Input file name + * @param bool $relative_path Whether to preserve paths + * @return string + */ + public function sanitize_filename($str, $relative_path = FALSE) + { + $bad = $this->filename_bad_chars; + + if ( ! $relative_path) + { + $bad[] = './'; + $bad[] = '/'; + } + + $str = remove_invisible_characters($str, FALSE); + + do + { + $old = $str; + $str = str_replace($bad, '', $str); + } + while ($old !== $str); + + return stripslashes($str); + } + + // ---------------------------------------------------------------- + + /** + * Strip Image Tags + * + * @param string $str + * @return string + */ + public function strip_image_tags($str) + { + return preg_replace( + array( + '##i', + '#`]+)).*?\>#i' + ), + '\\2', + $str + ); + } + + // ---------------------------------------------------------------- + + /** + * URL-decode taking spaces into account + * + * @see https://github.com/bcit-ci/CodeIgniter/issues/4877 + * @param array $matches + * @return string + */ + protected function _urldecodespaces($matches) + { + $input = $matches[0]; + $nospaces = preg_replace('#\s+#', '', $input); + return ($nospaces === $input) + ? $input + : rawurldecode($nospaces); + } + + // ---------------------------------------------------------------- + + /** + * Compact Exploded Words + * + * Callback method for xss_clean() to remove whitespace from + * things like 'j a v a s c r i p t'. + * + * @used-by CI_Security::xss_clean() + * @param array $matches + * @return string + */ + protected function _compact_exploded_words($matches) + { + return preg_replace('/\s+/s', '', $matches[1]).$matches[2]; + } + + // -------------------------------------------------------------------- + + /** + * Sanitize Naughty HTML + * + * Callback method for xss_clean() to remove naughty HTML elements. + * + * @used-by CI_Security::xss_clean() + * @param array $matches + * @return string + */ + protected function _sanitize_naughty_html($matches) + { + static $naughty_tags = array( + 'alert', 'area', 'prompt', 'confirm', 'applet', 'audio', 'basefont', 'base', 'behavior', 'bgsound', + 'blink', 'body', 'embed', 'expression', 'form', 'frameset', 'frame', 'head', 'html', 'ilayer', + 'iframe', 'input', 'button', 'select', 'isindex', 'layer', 'link', 'meta', 'keygen', 'object', + 'plaintext', 'style', 'script', 'textarea', 'title', 'math', 'video', 'svg', 'xml', 'xss' + ); + + static $evil_attributes = array( + 'on\w+', 'style', 'xmlns', 'formaction', 'form', 'xlink:href', 'FSCommand', 'seekSegmentTime' + ); + + // First, escape unclosed tags + if (empty($matches['closeTag'])) + { + return '<'.$matches[1]; + } + // Is the element that we caught naughty? If so, escape it + elseif (in_array(strtolower($matches['tagName']), $naughty_tags, TRUE)) + { + return '<'.$matches[1].'>'; + } + // For other tags, see if their attributes are "evil" and strip those + elseif (isset($matches['attributes'])) + { + // We'll store the already filtered attributes here + $attributes = array(); + + // Attribute-catching pattern + $attributes_pattern = '#' + .'(?[^\s\042\047>/=]+)' // attribute characters + // optional attribute-value + .'(?:\s*=(?[^\s\042\047=><`]+|\s*\042[^\042]*\042|\s*\047[^\047]*\047|\s*(?U:[^\s\042\047=><`]*)))' // attribute-value separator + .'#i'; + + // Blacklist pattern for evil attribute names + $is_evil_pattern = '#^('.implode('|', $evil_attributes).')$#i'; + + // Each iteration filters a single attribute + do + { + // Strip any non-alpha characters that may precede an attribute. + // Browsers often parse these incorrectly and that has been a + // of numerous XSS issues we've had. + $matches['attributes'] = preg_replace('#^[^a-z]+#i', '', $matches['attributes']); + + if ( ! preg_match($attributes_pattern, $matches['attributes'], $attribute, PREG_OFFSET_CAPTURE)) + { + // No (valid) attribute found? Discard everything else inside the tag + break; + } + + if ( + // Is it indeed an "evil" attribute? + preg_match($is_evil_pattern, $attribute['name'][0]) + // Or does it have an equals sign, but no value and not quoted? Strip that too! + OR (trim($attribute['value'][0]) === '') + ) + { + $attributes[] = 'xss=removed'; + } + else + { + $attributes[] = $attribute[0][0]; + } + + $matches['attributes'] = substr($matches['attributes'], $attribute[0][1] + strlen($attribute[0][0])); + } + while ($matches['attributes'] !== ''); + + $attributes = empty($attributes) + ? '' + : ' '.implode(' ', $attributes); + return '<'.$matches['slash'].$matches['tagName'].$attributes.'>'; + } + + return $matches[0]; + } + + // -------------------------------------------------------------------- + + /** + * JS Link Removal + * + * Callback method for xss_clean() to sanitize links. + * + * This limits the PCRE backtracks, making it more performance friendly + * and prevents PREG_BACKTRACK_LIMIT_ERROR from being triggered in + * PHP 5.2+ on link-heavy strings. + * + * @used-by CI_Security::xss_clean() + * @param array $match + * @return string + */ + protected function _js_link_removal($match) + { + return str_replace( + $match[1], + preg_replace( + '#href=.*?(?:(?:alert|prompt|confirm)(?:\(|&\#40;|`|&\#96;)|javascript:|livescript:|mocha:|charset=|window\.|\(?document\)?\.|\.cookie|_filter_attributes($match[1]) + ), + $match[0] + ); + } + + // -------------------------------------------------------------------- + + /** + * JS Image Removal + * + * Callback method for xss_clean() to sanitize image tags. + * + * This limits the PCRE backtracks, making it more performance friendly + * and prevents PREG_BACKTRACK_LIMIT_ERROR from being triggered in + * PHP 5.2+ on image tag heavy strings. + * + * @used-by CI_Security::xss_clean() + * @param array $match + * @return string + */ + protected function _js_img_removal($match) + { + return str_replace( + $match[1], + preg_replace( + '#src=.*?(?:(?:alert|prompt|confirm|eval)(?:\(|&\#40;|`|&\#96;)|javascript:|livescript:|mocha:|charset=|window\.|\(?document\)?\.|\.cookie|_filter_attributes($match[1]) + ), + $match[0] + ); + } + + // -------------------------------------------------------------------- + + /** + * Attribute Conversion + * + * @used-by CI_Security::xss_clean() + * @param array $match + * @return string + */ + protected function _convert_attribute($match) + { + return str_replace(array('>', '<', '\\'), array('>', '<', '\\\\'), $match[0]); + } + + // -------------------------------------------------------------------- + + /** + * Filter Attributes + * + * Filters tag attributes for consistency and safety. + * + * @used-by CI_Security::_js_img_removal() + * @used-by CI_Security::_js_link_removal() + * @param string $str + * @return string + */ + protected function _filter_attributes($str) + { + $out = ''; + if (preg_match_all('#\s*[a-z\-]+\s*=\s*(\042|\047)([^\\1]*?)\\1#is', $str, $matches)) + { + foreach ($matches[0] as $match) + { + $out .= preg_replace('#/\*.*?\*/#s', '', $match); + } + } + + return $out; + } + + // -------------------------------------------------------------------- + + /** + * HTML Entity Decode Callback + * + * @used-by CI_Security::xss_clean() + * @param array $match + * @return string + */ + protected function _decode_entity($match) + { + // Protect GET variables in URLs + // 901119URL5918AMP18930PROTECT8198 + $match = preg_replace('|\&([a-z\_0-9\-]+)\=([a-z\_0-9\-/]+)|i', $this->xss_hash().'\\1=\\2', $match[0]); + + // Decode, then un-protect URL GET vars + return str_replace( + $this->xss_hash(), + '&', + $this->entity_decode($match, $this->charset) + ); + } + + // -------------------------------------------------------------------- + + /** + * Do Never Allowed + * + * @used-by CI_Security::xss_clean() + * @param string + * @return string + */ + protected function _do_never_allowed($str) + { + $str = str_replace(array_keys($this->_never_allowed_str), $this->_never_allowed_str, $str); + + foreach ($this->_never_allowed_regex as $regex) + { + $str = preg_replace('#'.$regex.'#is', '[removed]', $str); + } + + return $str; + } + + // -------------------------------------------------------------------- + + /** + * Set CSRF Hash and Cookie + * + * @return string + */ + protected function _csrf_set_hash() + { + if ($this->_csrf_hash === NULL) + { + // If the cookie exists we will use its value. + // We don't necessarily want to regenerate it with + // each page load since a page could contain embedded + // sub-pages causing this feature to fail + if (isset($_COOKIE[$this->_csrf_cookie_name]) && is_string($_COOKIE[$this->_csrf_cookie_name]) + && preg_match('#^[0-9a-f]{32}$#iS', $_COOKIE[$this->_csrf_cookie_name]) === 1) + { + return $this->_csrf_hash = $_COOKIE[$this->_csrf_cookie_name]; + } + + $rand = $this->get_random_bytes(16); + $this->_csrf_hash = ($rand === FALSE) + ? md5(uniqid(mt_rand(), TRUE)) + : bin2hex($rand); + } + + return $this->_csrf_hash; + } + +} diff --git a/ci/system/core/URI.php b/ci/system/core/URI.php new file mode 100644 index 0000000..6a55439 --- /dev/null +++ b/ci/system/core/URI.php @@ -0,0 +1,644 @@ +config =& load_class('Config', 'core'); + + // If query strings are enabled, we don't need to parse any segments. + // However, they don't make sense under CLI. + if (is_cli() OR $this->config->item('enable_query_strings') !== TRUE) + { + $this->_permitted_uri_chars = $this->config->item('permitted_uri_chars'); + + // If it's a CLI request, ignore the configuration + if (is_cli()) + { + $uri = $this->_parse_argv(); + } + else + { + $protocol = $this->config->item('uri_protocol'); + empty($protocol) && $protocol = 'REQUEST_URI'; + + switch ($protocol) + { + case 'AUTO': // For BC purposes only + case 'REQUEST_URI': + $uri = $this->_parse_request_uri(); + break; + case 'QUERY_STRING': + $uri = $this->_parse_query_string(); + break; + case 'PATH_INFO': + default: + $uri = isset($_SERVER[$protocol]) + ? $_SERVER[$protocol] + : $this->_parse_request_uri(); + break; + } + } + + $this->_set_uri_string($uri); + } + + log_message('info', 'URI Class Initialized'); + } + + // -------------------------------------------------------------------- + + /** + * Set URI String + * + * @param string $str + * @return void + */ + protected function _set_uri_string($str) + { + // Filter out control characters and trim slashes + $this->uri_string = trim(remove_invisible_characters($str, FALSE), '/'); + + if ($this->uri_string !== '') + { + // Remove the URL suffix, if present + if (($suffix = (string) $this->config->item('url_suffix')) !== '') + { + $slen = strlen($suffix); + + if (substr($this->uri_string, -$slen) === $suffix) + { + $this->uri_string = substr($this->uri_string, 0, -$slen); + } + } + + $this->segments[0] = NULL; + // Populate the segments array + foreach (explode('/', trim($this->uri_string, '/')) as $val) + { + $val = trim($val); + // Filter segments for security + $this->filter_uri($val); + + if ($val !== '') + { + $this->segments[] = $val; + } + } + + unset($this->segments[0]); + } + } + + // -------------------------------------------------------------------- + + /** + * Parse REQUEST_URI + * + * Will parse REQUEST_URI and automatically detect the URI from it, + * while fixing the query string if necessary. + * + * @return string + */ + protected function _parse_request_uri() + { + if ( ! isset($_SERVER['REQUEST_URI'], $_SERVER['SCRIPT_NAME'])) + { + return ''; + } + + // parse_url() returns false if no host is present, but the path or query string + // contains a colon followed by a number + $uri = parse_url('http://dummy'.$_SERVER['REQUEST_URI']); + $query = isset($uri['query']) ? $uri['query'] : ''; + $uri = isset($uri['path']) ? $uri['path'] : ''; + + if (isset($_SERVER['SCRIPT_NAME'][0])) + { + if (strpos($uri, $_SERVER['SCRIPT_NAME']) === 0) + { + $uri = (string) substr($uri, strlen($_SERVER['SCRIPT_NAME'])); + } + elseif (strpos($uri, dirname($_SERVER['SCRIPT_NAME'])) === 0) + { + $uri = (string) substr($uri, strlen(dirname($_SERVER['SCRIPT_NAME']))); + } + } + + // This section ensures that even on servers that require the URI to be in the query string (Nginx) a correct + // URI is found, and also fixes the QUERY_STRING server var and $_GET array. + if (trim($uri, '/') === '' && strncmp($query, '/', 1) === 0) + { + $query = explode('?', $query, 2); + $uri = $query[0]; + $_SERVER['QUERY_STRING'] = isset($query[1]) ? $query[1] : ''; + } + else + { + $_SERVER['QUERY_STRING'] = $query; + } + + parse_str($_SERVER['QUERY_STRING'], $_GET); + + if ($uri === '/' OR $uri === '') + { + return '/'; + } + + // Do some final cleaning of the URI and return it + return $this->_remove_relative_directory($uri); + } + + // -------------------------------------------------------------------- + + /** + * Parse QUERY_STRING + * + * Will parse QUERY_STRING and automatically detect the URI from it. + * + * @return string + */ + protected function _parse_query_string() + { + $uri = isset($_SERVER['QUERY_STRING']) ? $_SERVER['QUERY_STRING'] : @getenv('QUERY_STRING'); + + if (trim($uri, '/') === '') + { + return ''; + } + elseif (strncmp($uri, '/', 1) === 0) + { + $uri = explode('?', $uri, 2); + $_SERVER['QUERY_STRING'] = isset($uri[1]) ? $uri[1] : ''; + $uri = $uri[0]; + } + + parse_str($_SERVER['QUERY_STRING'], $_GET); + + return $this->_remove_relative_directory($uri); + } + + // -------------------------------------------------------------------- + + /** + * Parse CLI arguments + * + * Take each command line argument and assume it is a URI segment. + * + * @return string + */ + protected function _parse_argv() + { + $args = array_slice($_SERVER['argv'], 1); + return $args ? implode('/', $args) : ''; + } + + // -------------------------------------------------------------------- + + /** + * Remove relative directory (../) and multi slashes (///) + * + * Do some final cleaning of the URI and return it, currently only used in self::_parse_request_uri() + * + * @param string $uri + * @return string + */ + protected function _remove_relative_directory($uri) + { + $uris = array(); + $tok = strtok($uri, '/'); + while ($tok !== FALSE) + { + if (( ! empty($tok) OR $tok === '0') && $tok !== '..') + { + $uris[] = $tok; + } + $tok = strtok('/'); + } + + return implode('/', $uris); + } + + // -------------------------------------------------------------------- + + /** + * Filter URI + * + * Filters segments for malicious characters. + * + * @param string $str + * @return void + */ + public function filter_uri(&$str) + { + if ( ! empty($str) && ! empty($this->_permitted_uri_chars) && ! preg_match('/^['.$this->_permitted_uri_chars.']+$/i'.(UTF8_ENABLED ? 'u' : ''), $str)) + { + show_error('The URI you submitted has disallowed characters.', 400); + } + } + + // -------------------------------------------------------------------- + + /** + * Fetch URI Segment + * + * @see CI_URI::$segments + * @param int $n Index + * @param mixed $no_result What to return if the segment index is not found + * @return mixed + */ + public function segment($n, $no_result = NULL) + { + return isset($this->segments[$n]) ? $this->segments[$n] : $no_result; + } + + // -------------------------------------------------------------------- + + /** + * Fetch URI "routed" Segment + * + * Returns the re-routed URI segment (assuming routing rules are used) + * based on the index provided. If there is no routing, will return + * the same result as CI_URI::segment(). + * + * @see CI_URI::$rsegments + * @see CI_URI::segment() + * @param int $n Index + * @param mixed $no_result What to return if the segment index is not found + * @return mixed + */ + public function rsegment($n, $no_result = NULL) + { + return isset($this->rsegments[$n]) ? $this->rsegments[$n] : $no_result; + } + + // -------------------------------------------------------------------- + + /** + * URI to assoc + * + * Generates an associative array of URI data starting at the supplied + * segment index. For example, if this is your URI: + * + * example.com/user/search/name/joe/location/UK/gender/male + * + * You can use this method to generate an array with this prototype: + * + * array ( + * name => joe + * location => UK + * gender => male + * ) + * + * @param int $n Index (default: 3) + * @param array $default Default values + * @return array + */ + public function uri_to_assoc($n = 3, $default = array()) + { + return $this->_uri_to_assoc($n, $default, 'segment'); + } + + // -------------------------------------------------------------------- + + /** + * Routed URI to assoc + * + * Identical to CI_URI::uri_to_assoc(), only it uses the re-routed + * segment array. + * + * @see CI_URI::uri_to_assoc() + * @param int $n Index (default: 3) + * @param array $default Default values + * @return array + */ + public function ruri_to_assoc($n = 3, $default = array()) + { + return $this->_uri_to_assoc($n, $default, 'rsegment'); + } + + // -------------------------------------------------------------------- + + /** + * Internal URI-to-assoc + * + * Generates a key/value pair from the URI string or re-routed URI string. + * + * @used-by CI_URI::uri_to_assoc() + * @used-by CI_URI::ruri_to_assoc() + * @param int $n Index (default: 3) + * @param array $default Default values + * @param string $which Array name ('segment' or 'rsegment') + * @return array + */ + protected function _uri_to_assoc($n = 3, $default = array(), $which = 'segment') + { + if ( ! is_numeric($n)) + { + return $default; + } + + if (isset($this->keyval[$which], $this->keyval[$which][$n])) + { + return $this->keyval[$which][$n]; + } + + $total_segments = "total_{$which}s"; + $segment_array = "{$which}_array"; + + if ($this->$total_segments() < $n) + { + return (count($default) === 0) + ? array() + : array_fill_keys($default, NULL); + } + + $segments = array_slice($this->$segment_array(), ($n - 1)); + $i = 0; + $lastval = ''; + $retval = array(); + foreach ($segments as $seg) + { + if ($i % 2) + { + $retval[$lastval] = $seg; + } + else + { + $retval[$seg] = NULL; + $lastval = $seg; + } + + $i++; + } + + if (count($default) > 0) + { + foreach ($default as $val) + { + if ( ! array_key_exists($val, $retval)) + { + $retval[$val] = NULL; + } + } + } + + // Cache the array for reuse + isset($this->keyval[$which]) OR $this->keyval[$which] = array(); + $this->keyval[$which][$n] = $retval; + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Assoc to URI + * + * Generates a URI string from an associative array. + * + * @param array $array Input array of key/value pairs + * @return string URI string + */ + public function assoc_to_uri($array) + { + $temp = array(); + foreach ((array) $array as $key => $val) + { + $temp[] = $key; + $temp[] = $val; + } + + return implode('/', $temp); + } + + // -------------------------------------------------------------------- + + /** + * Slash segment + * + * Fetches an URI segment with a slash. + * + * @param int $n Index + * @param string $where Where to add the slash ('trailing' or 'leading') + * @return string + */ + public function slash_segment($n, $where = 'trailing') + { + return $this->_slash_segment($n, $where, 'segment'); + } + + // -------------------------------------------------------------------- + + /** + * Slash routed segment + * + * Fetches an URI routed segment with a slash. + * + * @param int $n Index + * @param string $where Where to add the slash ('trailing' or 'leading') + * @return string + */ + public function slash_rsegment($n, $where = 'trailing') + { + return $this->_slash_segment($n, $where, 'rsegment'); + } + + // -------------------------------------------------------------------- + + /** + * Internal Slash segment + * + * Fetches an URI Segment and adds a slash to it. + * + * @used-by CI_URI::slash_segment() + * @used-by CI_URI::slash_rsegment() + * + * @param int $n Index + * @param string $where Where to add the slash ('trailing' or 'leading') + * @param string $which Array name ('segment' or 'rsegment') + * @return string + */ + protected function _slash_segment($n, $where = 'trailing', $which = 'segment') + { + $leading = $trailing = '/'; + + if ($where === 'trailing') + { + $leading = ''; + } + elseif ($where === 'leading') + { + $trailing = ''; + } + + return $leading.$this->$which($n).$trailing; + } + + // -------------------------------------------------------------------- + + /** + * Segment Array + * + * @return array CI_URI::$segments + */ + public function segment_array() + { + return $this->segments; + } + + // -------------------------------------------------------------------- + + /** + * Routed Segment Array + * + * @return array CI_URI::$rsegments + */ + public function rsegment_array() + { + return $this->rsegments; + } + + // -------------------------------------------------------------------- + + /** + * Total number of segments + * + * @return int + */ + public function total_segments() + { + return count($this->segments); + } + + // -------------------------------------------------------------------- + + /** + * Total number of routed segments + * + * @return int + */ + public function total_rsegments() + { + return count($this->rsegments); + } + + // -------------------------------------------------------------------- + + /** + * Fetch URI string + * + * @return string CI_URI::$uri_string + */ + public function uri_string() + { + return $this->uri_string; + } + + // -------------------------------------------------------------------- + + /** + * Fetch Re-routed URI string + * + * @return string + */ + public function ruri_string() + { + return ltrim(load_class('Router', 'core')->directory, '/').implode('/', $this->rsegments); + } + +} diff --git a/ci/system/core/Utf8.php b/ci/system/core/Utf8.php new file mode 100644 index 0000000..0547223 --- /dev/null +++ b/ci/system/core/Utf8.php @@ -0,0 +1,165 @@ +is_ascii($str) === FALSE) + { + if (MB_ENABLED) + { + $str = mb_convert_encoding($str, 'UTF-8', 'UTF-8'); + } + elseif (ICONV_ENABLED) + { + $str = @iconv('UTF-8', 'UTF-8//IGNORE', $str); + } + } + + return $str; + } + + // -------------------------------------------------------------------- + + /** + * Remove ASCII control characters + * + * Removes all ASCII control characters except horizontal tabs, + * line feeds, and carriage returns, as all others can cause + * problems in XML. + * + * @param string $str String to clean + * @return string + */ + public function safe_ascii_for_xml($str) + { + return remove_invisible_characters($str, FALSE); + } + + // -------------------------------------------------------------------- + + /** + * Convert to UTF-8 + * + * Attempts to convert a string to UTF-8. + * + * @param string $str Input string + * @param string $encoding Input encoding + * @return string $str encoded in UTF-8 or FALSE on failure + */ + public function convert_to_utf8($str, $encoding) + { + if (MB_ENABLED) + { + return mb_convert_encoding($str, 'UTF-8', $encoding); + } + elseif (ICONV_ENABLED) + { + return @iconv($encoding, 'UTF-8', $str); + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Is ASCII? + * + * Tests if a string is standard 7-bit ASCII or not. + * + * @param string $str String to check + * @return bool + */ + public function is_ascii($str) + { + return (preg_match('/[^\x00-\x7F]/S', $str) === 0); + } + +} diff --git a/ci/system/core/compat/hash.php b/ci/system/core/compat/hash.php new file mode 100644 index 0000000..3fe3b85 --- /dev/null +++ b/ci/system/core/compat/hash.php @@ -0,0 +1,255 @@ + 32, + 'haval128,3' => 128, + 'haval160,3' => 128, + 'haval192,3' => 128, + 'haval224,3' => 128, + 'haval256,3' => 128, + 'haval128,4' => 128, + 'haval160,4' => 128, + 'haval192,4' => 128, + 'haval224,4' => 128, + 'haval256,4' => 128, + 'haval128,5' => 128, + 'haval160,5' => 128, + 'haval192,5' => 128, + 'haval224,5' => 128, + 'haval256,5' => 128, + 'md2' => 16, + 'md4' => 64, + 'md5' => 64, + 'ripemd128' => 64, + 'ripemd160' => 64, + 'ripemd256' => 64, + 'ripemd320' => 64, + 'salsa10' => 64, + 'salsa20' => 64, + 'sha1' => 64, + 'sha224' => 64, + 'sha256' => 64, + 'sha384' => 128, + 'sha512' => 128, + 'snefru' => 32, + 'snefru256' => 32, + 'tiger128,3' => 64, + 'tiger160,3' => 64, + 'tiger192,3' => 64, + 'tiger128,4' => 64, + 'tiger160,4' => 64, + 'tiger192,4' => 64, + 'whirlpool' => 64 + ); + + if (isset($block_sizes[$algo], $password[$block_sizes[$algo]])) + { + $password = hash($algo, $password, TRUE); + } + + $hash = ''; + // Note: Blocks are NOT 0-indexed + for ($bc = (int) ceil($length / $hash_length), $bi = 1; $bi <= $bc; $bi++) + { + $key = $derived_key = hash_hmac($algo, $salt.pack('N', $bi), $password, TRUE); + for ($i = 1; $i < $iterations; $i++) + { + $derived_key ^= $key = hash_hmac($algo, $key, $password, TRUE); + } + + $hash .= $derived_key; + } + + // This is not RFC-compatible, but we're aiming for natural PHP compatibility + if ( ! $raw_output) + { + $hash = bin2hex($hash); + } + + return defined('MB_OVERLOAD_STRING') + ? mb_substr($hash, 0, $length, '8bit') + : substr($hash, 0, $length); + } +} diff --git a/ci/system/core/compat/index.html b/ci/system/core/compat/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/system/core/compat/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/system/core/compat/mbstring.php b/ci/system/core/compat/mbstring.php new file mode 100644 index 0000000..1c49d18 --- /dev/null +++ b/ci/system/core/compat/mbstring.php @@ -0,0 +1,150 @@ + 0, 'algoName' => 'unknown', 'options' => array()) + : array('algo' => 1, 'algoName' => 'bcrypt', 'options' => array('cost' => $hash)); + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('password_hash')) +{ + /** + * password_hash() + * + * @link http://php.net/password_hash + * @param string $password + * @param int $algo + * @param array $options + * @return mixed + */ + function password_hash($password, $algo, array $options = array()) + { + static $func_overload; + isset($func_overload) OR $func_overload = (extension_loaded('mbstring') && ini_get('mbstring.func_overload')); + + if ($algo !== 1) + { + trigger_error('password_hash(): Unknown hashing algorithm: '.(int) $algo, E_USER_WARNING); + return NULL; + } + + if (isset($options['cost']) && ($options['cost'] < 4 OR $options['cost'] > 31)) + { + trigger_error('password_hash(): Invalid bcrypt cost parameter specified: '.(int) $options['cost'], E_USER_WARNING); + return NULL; + } + + if (isset($options['salt']) && ($saltlen = ($func_overload ? mb_strlen($options['salt'], '8bit') : strlen($options['salt']))) < 22) + { + trigger_error('password_hash(): Provided salt is too short: '.$saltlen.' expecting 22', E_USER_WARNING); + return NULL; + } + elseif ( ! isset($options['salt'])) + { + if (function_exists('random_bytes')) + { + try + { + $options['salt'] = random_bytes(16); + } + catch (Exception $e) + { + log_message('error', 'compat/password: Error while trying to use random_bytes(): '.$e->getMessage()); + return FALSE; + } + } + elseif (defined('MCRYPT_DEV_URANDOM')) + { + $options['salt'] = mcrypt_create_iv(16, MCRYPT_DEV_URANDOM); + } + elseif (DIRECTORY_SEPARATOR === '/' && (is_readable($dev = '/dev/arandom') OR is_readable($dev = '/dev/urandom'))) + { + if (($fp = fopen($dev, 'rb')) === FALSE) + { + log_message('error', 'compat/password: Unable to open '.$dev.' for reading.'); + return FALSE; + } + + // Try not to waste entropy ... + is_php('5.4') && stream_set_chunk_size($fp, 16); + + $options['salt'] = ''; + for ($read = 0; $read < 16; $read = ($func_overload) ? mb_strlen($options['salt'], '8bit') : strlen($options['salt'])) + { + if (($read = fread($fp, 16 - $read)) === FALSE) + { + log_message('error', 'compat/password: Error while reading from '.$dev.'.'); + return FALSE; + } + $options['salt'] .= $read; + } + + fclose($fp); + } + elseif (function_exists('openssl_random_pseudo_bytes')) + { + $is_secure = NULL; + $options['salt'] = openssl_random_pseudo_bytes(16, $is_secure); + if ($is_secure !== TRUE) + { + log_message('error', 'compat/password: openssl_random_pseudo_bytes() set the $cryto_strong flag to FALSE'); + return FALSE; + } + } + else + { + log_message('error', 'compat/password: No CSPRNG available.'); + return FALSE; + } + + $options['salt'] = str_replace('+', '.', rtrim(base64_encode($options['salt']), '=')); + } + elseif ( ! preg_match('#^[a-zA-Z0-9./]+$#D', $options['salt'])) + { + $options['salt'] = str_replace('+', '.', rtrim(base64_encode($options['salt']), '=')); + } + + isset($options['cost']) OR $options['cost'] = 10; + + return (strlen($password = crypt($password, sprintf('$2y$%02d$%s', $options['cost'], $options['salt']))) === 60) + ? $password + : FALSE; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('password_needs_rehash')) +{ + /** + * password_needs_rehash() + * + * @link http://php.net/password_needs_rehash + * @param string $hash + * @param int $algo + * @param array $options + * @return bool + */ + function password_needs_rehash($hash, $algo, array $options = array()) + { + $info = password_get_info($hash); + + if ($algo !== $info['algo']) + { + return TRUE; + } + elseif ($algo === 1) + { + $options['cost'] = isset($options['cost']) ? (int) $options['cost'] : 10; + return ($info['options']['cost'] !== $options['cost']); + } + + // Odd at first glance, but according to a comment in PHP's own unit tests, + // because it is an unknown algorithm - it's valid and therefore doesn't + // need rehashing. + return FALSE; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('password_verify')) +{ + /** + * password_verify() + * + * @link http://php.net/password_verify + * @param string $password + * @param string $hash + * @return bool + */ + function password_verify($password, $hash) + { + if (strlen($hash) !== 60 OR strlen($password = crypt($password, $hash)) !== 60) + { + return FALSE; + } + + $compare = 0; + for ($i = 0; $i < 60; $i++) + { + $compare |= (ord($password[$i]) ^ ord($hash[$i])); + } + + return ($compare === 0); + } +} diff --git a/ci/system/core/compat/standard.php b/ci/system/core/compat/standard.php new file mode 100644 index 0000000..18b1281 --- /dev/null +++ b/ci/system/core/compat/standard.php @@ -0,0 +1,183 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/system/database/DB.php b/ci/system/database/DB.php new file mode 100644 index 0000000..23581af --- /dev/null +++ b/ci/system/database/DB.php @@ -0,0 +1,219 @@ +load->get_package_paths() as $path) + { + if ($path !== APPPATH) + { + if (file_exists($file_path = $path.'config/'.ENVIRONMENT.'/database.php')) + { + include($file_path); + } + elseif (file_exists($file_path = $path.'config/database.php')) + { + include($file_path); + } + } + } + } + + if ( ! isset($db) OR count($db) === 0) + { + show_error('No database connection settings were found in the database config file.'); + } + + if ($params !== '') + { + $active_group = $params; + } + + if ( ! isset($active_group)) + { + show_error('You have not specified a database connection group via $active_group in your config/database.php file.'); + } + elseif ( ! isset($db[$active_group])) + { + show_error('You have specified an invalid database connection group ('.$active_group.') in your config/database.php file.'); + } + + $params = $db[$active_group]; + } + elseif (is_string($params)) + { + /** + * Parse the URL from the DSN string + * Database settings can be passed as discreet + * parameters or as a data source name in the first + * parameter. DSNs must have this prototype: + * $dsn = 'driver://username:password@hostname/database'; + */ + if (($dsn = @parse_url($params)) === FALSE) + { + show_error('Invalid DB Connection String'); + } + + $params = array( + 'dbdriver' => $dsn['scheme'], + 'hostname' => isset($dsn['host']) ? rawurldecode($dsn['host']) : '', + 'port' => isset($dsn['port']) ? rawurldecode($dsn['port']) : '', + 'username' => isset($dsn['user']) ? rawurldecode($dsn['user']) : '', + 'password' => isset($dsn['pass']) ? rawurldecode($dsn['pass']) : '', + 'database' => isset($dsn['path']) ? rawurldecode(substr($dsn['path'], 1)) : '' + ); + + // Were additional config items set? + if (isset($dsn['query'])) + { + parse_str($dsn['query'], $extra); + + foreach ($extra as $key => $val) + { + if (is_string($val) && in_array(strtoupper($val), array('TRUE', 'FALSE', 'NULL'))) + { + $val = var_export($val, TRUE); + } + + $params[$key] = $val; + } + } + } + + // No DB specified yet? Beat them senseless... + if (empty($params['dbdriver'])) + { + show_error('You have not selected a database type to connect to.'); + } + + // Load the DB classes. Note: Since the query builder class is optional + // we need to dynamically create a class that extends proper parent class + // based on whether we're using the query builder class or not. + if ($query_builder_override !== NULL) + { + $query_builder = $query_builder_override; + } + // Backwards compatibility work-around for keeping the + // $active_record config variable working. Should be + // removed in v3.1 + elseif ( ! isset($query_builder) && isset($active_record)) + { + $query_builder = $active_record; + } + + require_once(BASEPATH.'database/DB_driver.php'); + + if ( ! isset($query_builder) OR $query_builder === TRUE) + { + require_once(BASEPATH.'database/DB_query_builder.php'); + if ( ! class_exists('CI_DB', FALSE)) + { + /** + * CI_DB + * + * Acts as an alias for both CI_DB_driver and CI_DB_query_builder. + * + * @see CI_DB_query_builder + * @see CI_DB_driver + */ + class CI_DB extends CI_DB_query_builder { } + } + } + elseif ( ! class_exists('CI_DB', FALSE)) + { + /** + * @ignore + */ + class CI_DB extends CI_DB_driver { } + } + + // Load the DB driver + $driver_file = BASEPATH.'database/drivers/'.$params['dbdriver'].'/'.$params['dbdriver'].'_driver.php'; + + file_exists($driver_file) OR show_error('Invalid DB driver'); + require_once($driver_file); + + // Instantiate the DB adapter + $driver = 'CI_DB_'.$params['dbdriver'].'_driver'; + $DB = new $driver($params); + + // Check for a subdriver + if ( ! empty($DB->subdriver)) + { + $driver_file = BASEPATH.'database/drivers/'.$DB->dbdriver.'/subdrivers/'.$DB->dbdriver.'_'.$DB->subdriver.'_driver.php'; + + if (file_exists($driver_file)) + { + require_once($driver_file); + $driver = 'CI_DB_'.$DB->dbdriver.'_'.$DB->subdriver.'_driver'; + $DB = new $driver($params); + } + } + + $DB->initialize(); + return $DB; +} diff --git a/ci/system/database/DB_cache.php b/ci/system/database/DB_cache.php new file mode 100644 index 0000000..d05ebb2 --- /dev/null +++ b/ci/system/database/DB_cache.php @@ -0,0 +1,222 @@ +CI and load the file helper since we use it a lot + $this->CI =& get_instance(); + $this->db =& $db; + $this->CI->load->helper('file'); + + $this->check_path(); + } + + // -------------------------------------------------------------------- + + /** + * Set Cache Directory Path + * + * @param string $path Path to the cache directory + * @return bool + */ + public function check_path($path = '') + { + if ($path === '') + { + if ($this->db->cachedir === '') + { + return $this->db->cache_off(); + } + + $path = $this->db->cachedir; + } + + // Add a trailing slash to the path if needed + $path = realpath($path) + ? rtrim(realpath($path), DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR + : rtrim($path, '/').'/'; + + if ( ! is_dir($path)) + { + log_message('debug', 'DB cache path error: '.$path); + + // If the path is wrong we'll turn off caching + return $this->db->cache_off(); + } + + if ( ! is_really_writable($path)) + { + log_message('debug', 'DB cache dir not writable: '.$path); + + // If the path is not really writable we'll turn off caching + return $this->db->cache_off(); + } + + $this->db->cachedir = $path; + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Retrieve a cached query + * + * The URI being requested will become the name of the cache sub-folder. + * An MD5 hash of the SQL statement will become the cache file name. + * + * @param string $sql + * @return string + */ + public function read($sql) + { + $segment_one = ($this->CI->uri->segment(1) == FALSE) ? 'default' : $this->CI->uri->segment(1); + $segment_two = ($this->CI->uri->segment(2) == FALSE) ? 'index' : $this->CI->uri->segment(2); + $filepath = $this->db->cachedir.$segment_one.'+'.$segment_two.'/'.md5($sql); + + if ( ! is_file($filepath) OR FALSE === ($cachedata = file_get_contents($filepath))) + { + return FALSE; + } + + return unserialize($cachedata); + } + + // -------------------------------------------------------------------- + + /** + * Write a query to a cache file + * + * @param string $sql + * @param object $object + * @return bool + */ + public function write($sql, $object) + { + $segment_one = ($this->CI->uri->segment(1) == FALSE) ? 'default' : $this->CI->uri->segment(1); + $segment_two = ($this->CI->uri->segment(2) == FALSE) ? 'index' : $this->CI->uri->segment(2); + $dir_path = $this->db->cachedir.$segment_one.'+'.$segment_two.'/'; + $filename = md5($sql); + + if ( ! is_dir($dir_path) && ! @mkdir($dir_path, 0750)) + { + return FALSE; + } + + if (write_file($dir_path.$filename, serialize($object)) === FALSE) + { + return FALSE; + } + + chmod($dir_path.$filename, 0640); + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Delete cache files within a particular directory + * + * @param string $segment_one + * @param string $segment_two + * @return void + */ + public function delete($segment_one = '', $segment_two = '') + { + if ($segment_one === '') + { + $segment_one = ($this->CI->uri->segment(1) == FALSE) ? 'default' : $this->CI->uri->segment(1); + } + + if ($segment_two === '') + { + $segment_two = ($this->CI->uri->segment(2) == FALSE) ? 'index' : $this->CI->uri->segment(2); + } + + $dir_path = $this->db->cachedir.$segment_one.'+'.$segment_two.'/'; + delete_files($dir_path, TRUE); + } + + // -------------------------------------------------------------------- + + /** + * Delete all existing cache files + * + * @return void + */ + public function delete_all() + { + delete_files($this->db->cachedir, TRUE, TRUE); + } + +} diff --git a/ci/system/database/DB_driver.php b/ci/system/database/DB_driver.php new file mode 100644 index 0000000..522f1bb --- /dev/null +++ b/ci/system/database/DB_driver.php @@ -0,0 +1,1999 @@ + $val) + { + $this->$key = $val; + } + } + + log_message('info', 'Database Driver Class Initialized'); + } + + // -------------------------------------------------------------------- + + /** + * Initialize Database Settings + * + * @return bool + */ + public function initialize() + { + /* If an established connection is available, then there's + * no need to connect and select the database. + * + * Depending on the database driver, conn_id can be either + * boolean TRUE, a resource or an object. + */ + if ($this->conn_id) + { + return TRUE; + } + + // ---------------------------------------------------------------- + + // Connect to the database and set the connection ID + $this->conn_id = $this->db_connect($this->pconnect); + + // No connection resource? Check if there is a failover else throw an error + if ( ! $this->conn_id) + { + // Check if there is a failover set + if ( ! empty($this->failover) && is_array($this->failover)) + { + // Go over all the failovers + foreach ($this->failover as $failover) + { + // Replace the current settings with those of the failover + foreach ($failover as $key => $val) + { + $this->$key = $val; + } + + // Try to connect + $this->conn_id = $this->db_connect($this->pconnect); + + // If a connection is made break the foreach loop + if ($this->conn_id) + { + break; + } + } + } + + // We still don't have a connection? + if ( ! $this->conn_id) + { + log_message('error', 'Unable to connect to the database'); + + if ($this->db_debug) + { + $this->display_error('db_unable_to_connect'); + } + + return FALSE; + } + } + + // Now we set the character set and that's all + return $this->db_set_charset($this->char_set); + } + + // -------------------------------------------------------------------- + + /** + * DB connect + * + * This is just a dummy method that all drivers will override. + * + * @return mixed + */ + public function db_connect() + { + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Persistent database connection + * + * @return mixed + */ + public function db_pconnect() + { + return $this->db_connect(TRUE); + } + + // -------------------------------------------------------------------- + + /** + * Reconnect + * + * Keep / reestablish the db connection if no queries have been + * sent for a length of time exceeding the server's idle timeout. + * + * This is just a dummy method to allow drivers without such + * functionality to not declare it, while others will override it. + * + * @return void + */ + public function reconnect() + { + } + + // -------------------------------------------------------------------- + + /** + * Select database + * + * This is just a dummy method to allow drivers without such + * functionality to not declare it, while others will override it. + * + * @return bool + */ + public function db_select() + { + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Last error + * + * @return array + */ + public function error() + { + return array('code' => NULL, 'message' => NULL); + } + + // -------------------------------------------------------------------- + + /** + * Set client character set + * + * @param string + * @return bool + */ + public function db_set_charset($charset) + { + if (method_exists($this, '_db_set_charset') && ! $this->_db_set_charset($charset)) + { + log_message('error', 'Unable to set database connection charset: '.$charset); + + if ($this->db_debug) + { + $this->display_error('db_unable_to_set_charset', $charset); + } + + return FALSE; + } + + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * The name of the platform in use (mysql, mssql, etc...) + * + * @return string + */ + public function platform() + { + return $this->dbdriver; + } + + // -------------------------------------------------------------------- + + /** + * Database version number + * + * Returns a string containing the version of the database being used. + * Most drivers will override this method. + * + * @return string + */ + public function version() + { + if (isset($this->data_cache['version'])) + { + return $this->data_cache['version']; + } + + if (FALSE === ($sql = $this->_version())) + { + return ($this->db_debug) ? $this->display_error('db_unsupported_function') : FALSE; + } + + $query = $this->query($sql)->row(); + return $this->data_cache['version'] = $query->ver; + } + + // -------------------------------------------------------------------- + + /** + * Version number query string + * + * @return string + */ + protected function _version() + { + return 'SELECT VERSION() AS ver'; + } + + // -------------------------------------------------------------------- + + /** + * Execute the query + * + * Accepts an SQL string as input and returns a result object upon + * successful execution of a "read" type query. Returns boolean TRUE + * upon successful execution of a "write" type query. Returns boolean + * FALSE upon failure, and if the $db_debug variable is set to TRUE + * will raise an error. + * + * @param string $sql + * @param array $binds = FALSE An array of binding data + * @param bool $return_object = NULL + * @return mixed + */ + public function query($sql, $binds = FALSE, $return_object = NULL) + { + if ($sql === '') + { + log_message('error', 'Invalid query: '.$sql); + return ($this->db_debug) ? $this->display_error('db_invalid_query') : FALSE; + } + elseif ( ! is_bool($return_object)) + { + $return_object = ! $this->is_write_type($sql); + } + + // Verify table prefix and replace if necessary + if ($this->dbprefix !== '' && $this->swap_pre !== '' && $this->dbprefix !== $this->swap_pre) + { + $sql = preg_replace('/(\W)'.$this->swap_pre.'(\S+?)/', '\\1'.$this->dbprefix.'\\2', $sql); + } + + // Compile binds if needed + if ($binds !== FALSE) + { + $sql = $this->compile_binds($sql, $binds); + } + + // Is query caching enabled? If the query is a "read type" + // we will load the caching class and return the previously + // cached query if it exists + if ($this->cache_on === TRUE && $return_object === TRUE && $this->_cache_init()) + { + $this->load_rdriver(); + if (FALSE !== ($cache = $this->CACHE->read($sql))) + { + return $cache; + } + } + + // Save the query for debugging + if ($this->save_queries === TRUE) + { + $this->queries[] = $sql; + } + + // Start the Query Timer + $time_start = microtime(TRUE); + + // Run the Query + if (FALSE === ($this->result_id = $this->simple_query($sql))) + { + if ($this->save_queries === TRUE) + { + $this->query_times[] = 0; + } + + // This will trigger a rollback if transactions are being used + if ($this->_trans_depth !== 0) + { + $this->_trans_status = FALSE; + } + + // Grab the error now, as we might run some additional queries before displaying the error + $error = $this->error(); + + // Log errors + log_message('error', 'Query error: '.$error['message'].' - Invalid query: '.$sql); + + if ($this->db_debug) + { + // We call this function in order to roll-back queries + // if transactions are enabled. If we don't call this here + // the error message will trigger an exit, causing the + // transactions to remain in limbo. + while ($this->_trans_depth !== 0) + { + $trans_depth = $this->_trans_depth; + $this->trans_complete(); + if ($trans_depth === $this->_trans_depth) + { + log_message('error', 'Database: Failure during an automated transaction commit/rollback!'); + break; + } + } + + // Display errors + return $this->display_error(array('Error Number: '.$error['code'], $error['message'], $sql)); + } + + return FALSE; + } + + // Stop and aggregate the query time results + $time_end = microtime(TRUE); + $this->benchmark += $time_end - $time_start; + + if ($this->save_queries === TRUE) + { + $this->query_times[] = $time_end - $time_start; + } + + // Increment the query counter + $this->query_count++; + + // Will we have a result object instantiated? If not - we'll simply return TRUE + if ($return_object !== TRUE) + { + // If caching is enabled we'll auto-cleanup any existing files related to this particular URI + if ($this->cache_on === TRUE && $this->cache_autodel === TRUE && $this->_cache_init()) + { + $this->CACHE->delete(); + } + + return TRUE; + } + + // Load and instantiate the result driver + $driver = $this->load_rdriver(); + $RES = new $driver($this); + + // Is query caching enabled? If so, we'll serialize the + // result object and save it to a cache file. + if ($this->cache_on === TRUE && $this->_cache_init()) + { + // We'll create a new instance of the result object + // only without the platform specific driver since + // we can't use it with cached data (the query result + // resource ID won't be any good once we've cached the + // result object, so we'll have to compile the data + // and save it) + $CR = new CI_DB_result($this); + $CR->result_object = $RES->result_object(); + $CR->result_array = $RES->result_array(); + $CR->num_rows = $RES->num_rows(); + + // Reset these since cached objects can not utilize resource IDs. + $CR->conn_id = NULL; + $CR->result_id = NULL; + + $this->CACHE->write($sql, $CR); + } + + return $RES; + } + + // -------------------------------------------------------------------- + + /** + * Load the result drivers + * + * @return string the name of the result class + */ + public function load_rdriver() + { + $driver = 'CI_DB_'.$this->dbdriver.'_result'; + + if ( ! class_exists($driver, FALSE)) + { + require_once(BASEPATH.'database/DB_result.php'); + require_once(BASEPATH.'database/drivers/'.$this->dbdriver.'/'.$this->dbdriver.'_result.php'); + } + + return $driver; + } + + // -------------------------------------------------------------------- + + /** + * Simple Query + * This is a simplified version of the query() function. Internally + * we only use it when running transaction commands since they do + * not require all the features of the main query() function. + * + * @param string the sql query + * @return mixed + */ + public function simple_query($sql) + { + if ( ! $this->conn_id) + { + if ( ! $this->initialize()) + { + return FALSE; + } + } + + return $this->_execute($sql); + } + + // -------------------------------------------------------------------- + + /** + * Disable Transactions + * This permits transactions to be disabled at run-time. + * + * @return void + */ + public function trans_off() + { + $this->trans_enabled = FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Enable/disable Transaction Strict Mode + * + * When strict mode is enabled, if you are running multiple groups of + * transactions, if one group fails all subsequent groups will be + * rolled back. + * + * If strict mode is disabled, each group is treated autonomously, + * meaning a failure of one group will not affect any others + * + * @param bool $mode = TRUE + * @return void + */ + public function trans_strict($mode = TRUE) + { + $this->trans_strict = is_bool($mode) ? $mode : TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Start Transaction + * + * @param bool $test_mode = FALSE + * @return bool + */ + public function trans_start($test_mode = FALSE) + { + if ( ! $this->trans_enabled) + { + return FALSE; + } + + return $this->trans_begin($test_mode); + } + + // -------------------------------------------------------------------- + + /** + * Complete Transaction + * + * @return bool + */ + public function trans_complete() + { + if ( ! $this->trans_enabled) + { + return FALSE; + } + + // The query() function will set this flag to FALSE in the event that a query failed + if ($this->_trans_status === FALSE OR $this->_trans_failure === TRUE) + { + $this->trans_rollback(); + + // If we are NOT running in strict mode, we will reset + // the _trans_status flag so that subsequent groups of + // transactions will be permitted. + if ($this->trans_strict === FALSE) + { + $this->_trans_status = TRUE; + } + + log_message('debug', 'DB Transaction Failure'); + return FALSE; + } + + return $this->trans_commit(); + } + + // -------------------------------------------------------------------- + + /** + * Lets you retrieve the transaction flag to determine if it has failed + * + * @return bool + */ + public function trans_status() + { + return $this->_trans_status; + } + + // -------------------------------------------------------------------- + + /** + * Returns TRUE if a transaction is currently active + * + * @return bool + */ + public function trans_active() + { + return (bool) $this->_trans_depth; + } + + // -------------------------------------------------------------------- + + /** + * Begin Transaction + * + * @param bool $test_mode + * @return bool + */ + public function trans_begin($test_mode = FALSE) + { + if ( ! $this->trans_enabled) + { + return FALSE; + } + // When transactions are nested we only begin/commit/rollback the outermost ones + elseif ($this->_trans_depth > 0) + { + $this->_trans_depth++; + return TRUE; + } + + // Reset the transaction failure flag. + // If the $test_mode flag is set to TRUE transactions will be rolled back + // even if the queries produce a successful result. + $this->_trans_failure = ($test_mode === TRUE); + + if ($this->_trans_begin()) + { + $this->_trans_status = TRUE; + $this->_trans_depth++; + return TRUE; + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Commit Transaction + * + * @return bool + */ + public function trans_commit() + { + if ( ! $this->trans_enabled OR $this->_trans_depth === 0) + { + return FALSE; + } + // When transactions are nested we only begin/commit/rollback the outermost ones + elseif ($this->_trans_depth > 1 OR $this->_trans_commit()) + { + $this->_trans_depth--; + return TRUE; + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Rollback Transaction + * + * @return bool + */ + public function trans_rollback() + { + if ( ! $this->trans_enabled OR $this->_trans_depth === 0) + { + return FALSE; + } + // When transactions are nested we only begin/commit/rollback the outermost ones + elseif ($this->_trans_depth > 1 OR $this->_trans_rollback()) + { + $this->_trans_depth--; + return TRUE; + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Compile Bindings + * + * @param string the sql statement + * @param array an array of bind data + * @return string + */ + public function compile_binds($sql, $binds) + { + if (empty($this->bind_marker) OR strpos($sql, $this->bind_marker) === FALSE) + { + return $sql; + } + elseif ( ! is_array($binds)) + { + $binds = array($binds); + $bind_count = 1; + } + else + { + // Make sure we're using numeric keys + $binds = array_values($binds); + $bind_count = count($binds); + } + + // We'll need the marker length later + $ml = strlen($this->bind_marker); + + // Make sure not to replace a chunk inside a string that happens to match the bind marker + if ($c = preg_match_all("/'[^']*'|\"[^\"]*\"/i", $sql, $matches)) + { + $c = preg_match_all('/'.preg_quote($this->bind_marker, '/').'/i', + str_replace($matches[0], + str_replace($this->bind_marker, str_repeat(' ', $ml), $matches[0]), + $sql, $c), + $matches, PREG_OFFSET_CAPTURE); + + // Bind values' count must match the count of markers in the query + if ($bind_count !== $c) + { + return $sql; + } + } + elseif (($c = preg_match_all('/'.preg_quote($this->bind_marker, '/').'/i', $sql, $matches, PREG_OFFSET_CAPTURE)) !== $bind_count) + { + return $sql; + } + + do + { + $c--; + $escaped_value = $this->escape($binds[$c]); + if (is_array($escaped_value)) + { + $escaped_value = '('.implode(',', $escaped_value).')'; + } + $sql = substr_replace($sql, $escaped_value, $matches[0][$c][1], $ml); + } + while ($c !== 0); + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Determines if a query is a "write" type. + * + * @param string An SQL query string + * @return bool + */ + public function is_write_type($sql) + { + return (bool) preg_match('/^\s*"?(SET|INSERT|UPDATE|DELETE|REPLACE|CREATE|DROP|TRUNCATE|LOAD|COPY|ALTER|RENAME|GRANT|REVOKE|LOCK|UNLOCK|REINDEX|MERGE)\s/i', $sql); + } + + // -------------------------------------------------------------------- + + /** + * Calculate the aggregate query elapsed time + * + * @param int The number of decimal places + * @return string + */ + public function elapsed_time($decimals = 6) + { + return number_format($this->benchmark, $decimals); + } + + // -------------------------------------------------------------------- + + /** + * Returns the total number of queries + * + * @return int + */ + public function total_queries() + { + return $this->query_count; + } + + // -------------------------------------------------------------------- + + /** + * Returns the last query that was executed + * + * @return string + */ + public function last_query() + { + return end($this->queries); + } + + // -------------------------------------------------------------------- + + /** + * "Smart" Escape String + * + * Escapes data based on type + * Sets boolean and null types + * + * @param string + * @return mixed + */ + public function escape($str) + { + if (is_array($str)) + { + $str = array_map(array(&$this, 'escape'), $str); + return $str; + } + elseif (is_string($str) OR (is_object($str) && method_exists($str, '__toString'))) + { + return "'".$this->escape_str($str)."'"; + } + elseif (is_bool($str)) + { + return ($str === FALSE) ? 0 : 1; + } + elseif ($str === NULL) + { + return 'NULL'; + } + + return $str; + } + + // -------------------------------------------------------------------- + + /** + * Escape String + * + * @param string|string[] $str Input string + * @param bool $like Whether or not the string will be used in a LIKE condition + * @return string + */ + public function escape_str($str, $like = FALSE) + { + if (is_array($str)) + { + foreach ($str as $key => $val) + { + $str[$key] = $this->escape_str($val, $like); + } + + return $str; + } + + $str = $this->_escape_str($str); + + // escape LIKE condition wildcards + if ($like === TRUE) + { + return str_replace( + array($this->_like_escape_chr, '%', '_'), + array($this->_like_escape_chr.$this->_like_escape_chr, $this->_like_escape_chr.'%', $this->_like_escape_chr.'_'), + $str + ); + } + + return $str; + } + + // -------------------------------------------------------------------- + + /** + * Escape LIKE String + * + * Calls the individual driver for platform + * specific escaping for LIKE conditions + * + * @param string|string[] + * @return mixed + */ + public function escape_like_str($str) + { + return $this->escape_str($str, TRUE); + } + + // -------------------------------------------------------------------- + + /** + * Platform-dependent string escape + * + * @param string + * @return string + */ + protected function _escape_str($str) + { + return str_replace("'", "''", remove_invisible_characters($str, FALSE)); + } + + // -------------------------------------------------------------------- + + /** + * Primary + * + * Retrieves the primary key. It assumes that the row in the first + * position is the primary key + * + * @param string $table Table name + * @return string + */ + public function primary($table) + { + $fields = $this->list_fields($table); + return is_array($fields) ? current($fields) : FALSE; + } + + // -------------------------------------------------------------------- + + /** + * "Count All" query + * + * Generates a platform-specific query string that counts all records in + * the specified database + * + * @param string + * @return int + */ + public function count_all($table = '') + { + if ($table === '') + { + return 0; + } + + $query = $this->query($this->_count_string.$this->escape_identifiers('numrows').' FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE)); + if ($query->num_rows() === 0) + { + return 0; + } + + $query = $query->row(); + $this->_reset_select(); + return (int) $query->numrows; + } + + // -------------------------------------------------------------------- + + /** + * Returns an array of table names + * + * @param string $constrain_by_prefix = FALSE + * @return array + */ + public function list_tables($constrain_by_prefix = FALSE) + { + // Is there a cached result? + if (isset($this->data_cache['table_names'])) + { + return $this->data_cache['table_names']; + } + + if (FALSE === ($sql = $this->_list_tables($constrain_by_prefix))) + { + return ($this->db_debug) ? $this->display_error('db_unsupported_function') : FALSE; + } + + $this->data_cache['table_names'] = array(); + $query = $this->query($sql); + + foreach ($query->result_array() as $row) + { + // Do we know from which column to get the table name? + if ( ! isset($key)) + { + if (isset($row['table_name'])) + { + $key = 'table_name'; + } + elseif (isset($row['TABLE_NAME'])) + { + $key = 'TABLE_NAME'; + } + else + { + /* We have no other choice but to just get the first element's key. + * Due to array_shift() accepting its argument by reference, if + * E_STRICT is on, this would trigger a warning. So we'll have to + * assign it first. + */ + $key = array_keys($row); + $key = array_shift($key); + } + } + + $this->data_cache['table_names'][] = $row[$key]; + } + + return $this->data_cache['table_names']; + } + + // -------------------------------------------------------------------- + + /** + * Determine if a particular table exists + * + * @param string $table_name + * @return bool + */ + public function table_exists($table_name) + { + return in_array($this->protect_identifiers($table_name, TRUE, FALSE, FALSE), $this->list_tables()); + } + + // -------------------------------------------------------------------- + + /** + * Fetch Field Names + * + * @param string $table Table name + * @return array + */ + public function list_fields($table) + { + if (FALSE === ($sql = $this->_list_columns($table))) + { + return ($this->db_debug) ? $this->display_error('db_unsupported_function') : FALSE; + } + + $query = $this->query($sql); + $fields = array(); + + foreach ($query->result_array() as $row) + { + // Do we know from where to get the column's name? + if ( ! isset($key)) + { + if (isset($row['column_name'])) + { + $key = 'column_name'; + } + elseif (isset($row['COLUMN_NAME'])) + { + $key = 'COLUMN_NAME'; + } + else + { + // We have no other choice but to just get the first element's key. + $key = key($row); + } + } + + $fields[] = $row[$key]; + } + + return $fields; + } + + // -------------------------------------------------------------------- + + /** + * Determine if a particular field exists + * + * @param string + * @param string + * @return bool + */ + public function field_exists($field_name, $table_name) + { + return in_array($field_name, $this->list_fields($table_name)); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table the table name + * @return array + */ + public function field_data($table) + { + $query = $this->query($this->_field_data($this->protect_identifiers($table, TRUE, NULL, FALSE))); + return ($query) ? $query->field_data() : FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Escape the SQL Identifiers + * + * This function escapes column and table names + * + * @param mixed + * @return mixed + */ + public function escape_identifiers($item) + { + if ($this->_escape_char === '' OR empty($item) OR in_array($item, $this->_reserved_identifiers)) + { + return $item; + } + elseif (is_array($item)) + { + foreach ($item as $key => $value) + { + $item[$key] = $this->escape_identifiers($value); + } + + return $item; + } + // Avoid breaking functions and literal values inside queries + elseif (ctype_digit($item) OR $item[0] === "'" OR ($this->_escape_char !== '"' && $item[0] === '"') OR strpos($item, '(') !== FALSE) + { + return $item; + } + + static $preg_ec = array(); + + if (empty($preg_ec)) + { + if (is_array($this->_escape_char)) + { + $preg_ec = array( + preg_quote($this->_escape_char[0], '/'), + preg_quote($this->_escape_char[1], '/'), + $this->_escape_char[0], + $this->_escape_char[1] + ); + } + else + { + $preg_ec[0] = $preg_ec[1] = preg_quote($this->_escape_char, '/'); + $preg_ec[2] = $preg_ec[3] = $this->_escape_char; + } + } + + foreach ($this->_reserved_identifiers as $id) + { + if (strpos($item, '.'.$id) !== FALSE) + { + return preg_replace('/'.$preg_ec[0].'?([^'.$preg_ec[1].'\.]+)'.$preg_ec[1].'?\./i', $preg_ec[2].'$1'.$preg_ec[3].'.', $item); + } + } + + return preg_replace('/'.$preg_ec[0].'?([^'.$preg_ec[1].'\.]+)'.$preg_ec[1].'?(\.)?/i', $preg_ec[2].'$1'.$preg_ec[3].'$2', $item); + } + + // -------------------------------------------------------------------- + + /** + * Generate an insert string + * + * @param string the table upon which the query will be performed + * @param array an associative array data of key/values + * @return string + */ + public function insert_string($table, $data) + { + $fields = $values = array(); + + foreach ($data as $key => $val) + { + $fields[] = $this->escape_identifiers($key); + $values[] = $this->escape($val); + } + + return $this->_insert($this->protect_identifiers($table, TRUE, NULL, FALSE), $fields, $values); + } + + // -------------------------------------------------------------------- + + /** + * Insert statement + * + * Generates a platform-specific insert string from the supplied data + * + * @param string the table name + * @param array the insert keys + * @param array the insert values + * @return string + */ + protected function _insert($table, $keys, $values) + { + return 'INSERT INTO '.$table.' ('.implode(', ', $keys).') VALUES ('.implode(', ', $values).')'; + } + + // -------------------------------------------------------------------- + + /** + * Generate an update string + * + * @param string the table upon which the query will be performed + * @param array an associative array data of key/values + * @param mixed the "where" statement + * @return string + */ + public function update_string($table, $data, $where) + { + if (empty($where)) + { + return FALSE; + } + + $this->where($where); + + $fields = array(); + foreach ($data as $key => $val) + { + $fields[$this->protect_identifiers($key)] = $this->escape($val); + } + + $sql = $this->_update($this->protect_identifiers($table, TRUE, NULL, FALSE), $fields); + $this->_reset_write(); + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Update statement + * + * Generates a platform-specific update string from the supplied data + * + * @param string the table name + * @param array the update data + * @return string + */ + protected function _update($table, $values) + { + foreach ($values as $key => $val) + { + $valstr[] = $key.' = '.$val; + } + + return 'UPDATE '.$table.' SET '.implode(', ', $valstr) + .$this->_compile_wh('qb_where') + .$this->_compile_order_by() + .($this->qb_limit !== FALSE ? ' LIMIT '.$this->qb_limit : ''); + } + + // -------------------------------------------------------------------- + + /** + * Tests whether the string has an SQL operator + * + * @param string + * @return bool + */ + protected function _has_operator($str) + { + return (bool) preg_match('/(<|>|!|=|\sIS NULL|\sIS NOT NULL|\sEXISTS|\sBETWEEN|\sLIKE|\sIN\s*\(|\s)/i', trim($str)); + } + + // -------------------------------------------------------------------- + + /** + * Returns the SQL string operator + * + * @param string + * @return string + */ + protected function _get_operator($str) + { + static $_operators; + + if (empty($_operators)) + { + $_les = ($this->_like_escape_str !== '') + ? '\s+'.preg_quote(trim(sprintf($this->_like_escape_str, $this->_like_escape_chr)), '/') + : ''; + $_operators = array( + '\s*(?:<|>|!)?=\s*', // =, <=, >=, != + '\s*<>?\s*', // <, <> + '\s*>\s*', // > + '\s+IS NULL', // IS NULL + '\s+IS NOT NULL', // IS NOT NULL + '\s+EXISTS\s*\(.*\)', // EXISTS(sql) + '\s+NOT EXISTS\s*\(.*\)', // NOT EXISTS(sql) + '\s+BETWEEN\s+', // BETWEEN value AND value + '\s+NOT BETWEEN\s+', // NOT BETWEEN value AND value + '\s+IN\s*\(.*\)', // IN(list) + '\s+NOT IN\s*\(.*\)', // NOT IN (list) + '\s+LIKE\s+\S.*('.$_les.')?', // LIKE 'expr'[ ESCAPE '%s'] + '\s+NOT LIKE\s+\S.*('.$_les.')?' // NOT LIKE 'expr'[ ESCAPE '%s'] + ); + + } + + return preg_match('/'.implode('|', $_operators).'/i', $str, $match) + ? $match[0] : FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Enables a native PHP function to be run, using a platform agnostic wrapper. + * + * @param string $function Function name + * @return mixed + */ + public function call_function($function) + { + $driver = ($this->dbdriver === 'postgre') ? 'pg_' : $this->dbdriver.'_'; + + if (FALSE === strpos($driver, $function)) + { + $function = $driver.$function; + } + + if ( ! function_exists($function)) + { + return ($this->db_debug) ? $this->display_error('db_unsupported_function') : FALSE; + } + + return (func_num_args() > 1) + ? call_user_func_array($function, array_slice(func_get_args(), 1)) + : call_user_func($function); + } + + // -------------------------------------------------------------------- + + /** + * Set Cache Directory Path + * + * @param string the path to the cache directory + * @return void + */ + public function cache_set_path($path = '') + { + $this->cachedir = $path; + } + + // -------------------------------------------------------------------- + + /** + * Enable Query Caching + * + * @return bool cache_on value + */ + public function cache_on() + { + return $this->cache_on = TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Disable Query Caching + * + * @return bool cache_on value + */ + public function cache_off() + { + return $this->cache_on = FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Delete the cache files associated with a particular URI + * + * @param string $segment_one = '' + * @param string $segment_two = '' + * @return bool + */ + public function cache_delete($segment_one = '', $segment_two = '') + { + return $this->_cache_init() + ? $this->CACHE->delete($segment_one, $segment_two) + : FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Delete All cache files + * + * @return bool + */ + public function cache_delete_all() + { + return $this->_cache_init() + ? $this->CACHE->delete_all() + : FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Initialize the Cache Class + * + * @return bool + */ + protected function _cache_init() + { + if ( ! class_exists('CI_DB_Cache', FALSE)) + { + require_once(BASEPATH.'database/DB_cache.php'); + } + elseif (is_object($this->CACHE)) + { + return TRUE; + } + + $this->CACHE = new CI_DB_Cache($this); // pass db object to support multiple db connections and returned db objects + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Close DB Connection + * + * @return void + */ + public function close() + { + if ($this->conn_id) + { + $this->_close(); + $this->conn_id = FALSE; + } + } + + // -------------------------------------------------------------------- + + /** + * Close DB Connection + * + * This method would be overridden by most of the drivers. + * + * @return void + */ + protected function _close() + { + $this->conn_id = FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Display an error message + * + * @param string the error message + * @param string any "swap" values + * @param bool whether to localize the message + * @return string sends the application/views/errors/error_db.php template + */ + public function display_error($error = '', $swap = '', $native = FALSE) + { + $LANG =& load_class('Lang', 'core'); + $LANG->load('db'); + + $heading = $LANG->line('db_error_heading'); + + if ($native === TRUE) + { + $message = (array) $error; + } + else + { + $message = is_array($error) ? $error : array(str_replace('%s', $swap, $LANG->line($error))); + } + + // Find the most likely culprit of the error by going through + // the backtrace until the source file is no longer in the + // database folder. + $trace = debug_backtrace(); + foreach ($trace as $call) + { + if (isset($call['file'], $call['class'])) + { + // We'll need this on Windows, as APPPATH and BASEPATH will always use forward slashes + if (DIRECTORY_SEPARATOR !== '/') + { + $call['file'] = str_replace('\\', '/', $call['file']); + } + + if (strpos($call['file'], BASEPATH.'database') === FALSE && strpos($call['class'], 'Loader') === FALSE) + { + // Found it - use a relative path for safety + $message[] = 'Filename: '.str_replace(array(APPPATH, BASEPATH), '', $call['file']); + $message[] = 'Line Number: '.$call['line']; + break; + } + } + } + + $error =& load_class('Exceptions', 'core'); + echo $error->show_error($heading, $message, 'error_db'); + exit(8); // EXIT_DATABASE + } + + // -------------------------------------------------------------------- + + /** + * Protect Identifiers + * + * This function is used extensively by the Query Builder class, and by + * a couple functions in this class. + * It takes a column or table name (optionally with an alias) and inserts + * the table prefix onto it. Some logic is necessary in order to deal with + * column names that include the path. Consider a query like this: + * + * SELECT hostname.database.table.column AS c FROM hostname.database.table + * + * Or a query with aliasing: + * + * SELECT m.member_id, m.member_name FROM members AS m + * + * Since the column name can include up to four segments (host, DB, table, column) + * or also have an alias prefix, we need to do a bit of work to figure this out and + * insert the table prefix (if it exists) in the proper position, and escape only + * the correct identifiers. + * + * @param string + * @param bool + * @param mixed + * @param bool + * @return string + */ + public function protect_identifiers($item, $prefix_single = FALSE, $protect_identifiers = NULL, $field_exists = TRUE) + { + if ( ! is_bool($protect_identifiers)) + { + $protect_identifiers = $this->_protect_identifiers; + } + + if (is_array($item)) + { + $escaped_array = array(); + foreach ($item as $k => $v) + { + $escaped_array[$this->protect_identifiers($k)] = $this->protect_identifiers($v, $prefix_single, $protect_identifiers, $field_exists); + } + + return $escaped_array; + } + + // This is basically a bug fix for queries that use MAX, MIN, etc. + // If a parenthesis is found we know that we do not need to + // escape the data or add a prefix. There's probably a more graceful + // way to deal with this, but I'm not thinking of it -- Rick + // + // Added exception for single quotes as well, we don't want to alter + // literal strings. -- Narf + if (strcspn($item, "()'") !== strlen($item)) + { + return $item; + } + + // Convert tabs or multiple spaces into single spaces + $item = preg_replace('/\s+/', ' ', trim($item)); + + // If the item has an alias declaration we remove it and set it aside. + // Note: strripos() is used in order to support spaces in table names + if ($offset = strripos($item, ' AS ')) + { + $alias = ($protect_identifiers) + ? substr($item, $offset, 4).$this->escape_identifiers(substr($item, $offset + 4)) + : substr($item, $offset); + $item = substr($item, 0, $offset); + } + elseif ($offset = strrpos($item, ' ')) + { + $alias = ($protect_identifiers) + ? ' '.$this->escape_identifiers(substr($item, $offset + 1)) + : substr($item, $offset); + $item = substr($item, 0, $offset); + } + else + { + $alias = ''; + } + + // Break the string apart if it contains periods, then insert the table prefix + // in the correct location, assuming the period doesn't indicate that we're dealing + // with an alias. While we're at it, we will escape the components + if (strpos($item, '.') !== FALSE) + { + $parts = explode('.', $item); + + // Does the first segment of the exploded item match + // one of the aliases previously identified? If so, + // we have nothing more to do other than escape the item + // + // NOTE: The ! empty() condition prevents this method + // from breaking when QB isn't enabled. + if ( ! empty($this->qb_aliased_tables) && in_array($parts[0], $this->qb_aliased_tables)) + { + if ($protect_identifiers === TRUE) + { + foreach ($parts as $key => $val) + { + if ( ! in_array($val, $this->_reserved_identifiers)) + { + $parts[$key] = $this->escape_identifiers($val); + } + } + + $item = implode('.', $parts); + } + + return $item.$alias; + } + + // Is there a table prefix defined in the config file? If not, no need to do anything + if ($this->dbprefix !== '') + { + // We now add the table prefix based on some logic. + // Do we have 4 segments (hostname.database.table.column)? + // If so, we add the table prefix to the column name in the 3rd segment. + if (isset($parts[3])) + { + $i = 2; + } + // Do we have 3 segments (database.table.column)? + // If so, we add the table prefix to the column name in 2nd position + elseif (isset($parts[2])) + { + $i = 1; + } + // Do we have 2 segments (table.column)? + // If so, we add the table prefix to the column name in 1st segment + else + { + $i = 0; + } + + // This flag is set when the supplied $item does not contain a field name. + // This can happen when this function is being called from a JOIN. + if ($field_exists === FALSE) + { + $i++; + } + + // dbprefix may've already been applied, with or without the identifier escaped + $ec = '(?'.preg_quote(is_array($this->_escape_char) ? $this->_escape_char[0] : $this->_escape_char).')?'; + isset($ec[0]) && $ec .= '?'; // Just in case someone has disabled escaping by forcing an empty escape character + + // Verify table prefix and replace if necessary + if ($this->swap_pre !== '' && preg_match('#^'.$ec.preg_quote($this->swap_pre).'#', $parts[$i])) + { + $parts[$i] = preg_replace('#^'.$ec.preg_quote($this->swap_pre).'(\S+?)#', '\\1'.$this->dbprefix.'\\2', $parts[$i]); + } + // We only add the table prefix if it does not already exist + else + { + preg_match('#^'.$ec.preg_quote($this->dbprefix).'#', $parts[$i]) OR $parts[$i] = $this->dbprefix.$parts[$i]; + } + + // Put the parts back together + $item = implode('.', $parts); + } + + if ($protect_identifiers === TRUE) + { + $item = $this->escape_identifiers($item); + } + + return $item.$alias; + } + + // Is there a table prefix? If not, no need to insert it + if ($this->dbprefix !== '') + { + // Verify table prefix and replace if necessary + if ($this->swap_pre !== '' && strpos($item, $this->swap_pre) === 0) + { + $item = preg_replace('/^'.$this->swap_pre.'(\S+?)/', $this->dbprefix.'\\1', $item); + } + // Do we prefix an item with no segments? + elseif ($prefix_single === TRUE && strpos($item, $this->dbprefix) !== 0) + { + $item = $this->dbprefix.$item; + } + } + + if ($protect_identifiers === TRUE && ! in_array($item, $this->_reserved_identifiers)) + { + $item = $this->escape_identifiers($item); + } + + return $item.$alias; + } + + // -------------------------------------------------------------------- + + /** + * Dummy method that allows Query Builder class to be disabled + * and keep count_all() working. + * + * @return void + */ + protected function _reset_select() + { + } + +} diff --git a/ci/system/database/DB_forge.php b/ci/system/database/DB_forge.php new file mode 100644 index 0000000..64ccde0 --- /dev/null +++ b/ci/system/database/DB_forge.php @@ -0,0 +1,1034 @@ +db =& $db; + log_message('info', 'Database Forge Class Initialized'); + } + + // -------------------------------------------------------------------- + + /** + * Create database + * + * @param string $db_name + * @return bool + */ + public function create_database($db_name) + { + if ($this->_create_database === FALSE) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unsupported_feature') : FALSE; + } + elseif ( ! $this->db->query(sprintf($this->_create_database, $this->db->escape_identifiers($db_name), $this->db->char_set, $this->db->dbcollat))) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unable_to_drop') : FALSE; + } + + if ( ! empty($this->db->data_cache['db_names'])) + { + $this->db->data_cache['db_names'][] = $db_name; + } + + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Drop database + * + * @param string $db_name + * @return bool + */ + public function drop_database($db_name) + { + if ($this->_drop_database === FALSE) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unsupported_feature') : FALSE; + } + elseif ( ! $this->db->query(sprintf($this->_drop_database, $this->db->escape_identifiers($db_name)))) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unable_to_drop') : FALSE; + } + + if ( ! empty($this->db->data_cache['db_names'])) + { + $key = array_search(strtolower($db_name), array_map('strtolower', $this->db->data_cache['db_names']), TRUE); + if ($key !== FALSE) + { + unset($this->db->data_cache['db_names'][$key]); + } + } + + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Add Key + * + * @param string $key + * @param bool $primary + * @return CI_DB_forge + */ + public function add_key($key, $primary = FALSE) + { + // DO NOT change this! This condition is only applicable + // for PRIMARY keys because you can only have one such, + // and therefore all fields you add to it will be included + // in the same, composite PRIMARY KEY. + // + // It's not the same for regular indexes. + if ($primary === TRUE && is_array($key)) + { + foreach ($key as $one) + { + $this->add_key($one, $primary); + } + + return $this; + } + + if ($primary === TRUE) + { + $this->primary_keys[] = $key; + } + else + { + $this->keys[] = $key; + } + + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Add Field + * + * @param array $field + * @return CI_DB_forge + */ + public function add_field($field) + { + if (is_string($field)) + { + if ($field === 'id') + { + $this->add_field(array( + 'id' => array( + 'type' => 'INT', + 'constraint' => 9, + 'auto_increment' => TRUE + ) + )); + $this->add_key('id', TRUE); + } + else + { + if (strpos($field, ' ') === FALSE) + { + show_error('Field information is required for that operation.'); + } + + $this->fields[] = $field; + } + } + + if (is_array($field)) + { + $this->fields = array_merge($this->fields, $field); + } + + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Create Table + * + * @param string $table Table name + * @param bool $if_not_exists Whether to add IF NOT EXISTS condition + * @param array $attributes Associative array of table attributes + * @return bool + */ + public function create_table($table, $if_not_exists = FALSE, array $attributes = array()) + { + if ($table === '') + { + show_error('A table name is required for that operation.'); + } + else + { + $table = $this->db->dbprefix.$table; + } + + if (count($this->fields) === 0) + { + show_error('Field information is required.'); + } + + $sql = $this->_create_table($table, $if_not_exists, $attributes); + + if (is_bool($sql)) + { + $this->_reset(); + if ($sql === FALSE) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unsupported_feature') : FALSE; + } + } + + if (($result = $this->db->query($sql)) !== FALSE) + { + if (isset($this->db->data_cache['table_names'])) + { + $this->db->data_cache['table_names'][] = $table; + } + + // Most databases don't support creating indexes from within the CREATE TABLE statement + if ( ! empty($this->keys)) + { + for ($i = 0, $sqls = $this->_process_indexes($table), $c = count($sqls); $i < $c; $i++) + { + $this->db->query($sqls[$i]); + } + } + } + + $this->_reset(); + return $result; + } + + // -------------------------------------------------------------------- + + /** + * Create Table + * + * @param string $table Table name + * @param bool $if_not_exists Whether to add 'IF NOT EXISTS' condition + * @param array $attributes Associative array of table attributes + * @return mixed + */ + protected function _create_table($table, $if_not_exists, $attributes) + { + if ($if_not_exists === TRUE && $this->_create_table_if === FALSE) + { + if ($this->db->table_exists($table)) + { + return TRUE; + } + + $if_not_exists = FALSE; + } + + $sql = ($if_not_exists) + ? sprintf($this->_create_table_if, $this->db->escape_identifiers($table)) + : 'CREATE TABLE'; + + $columns = $this->_process_fields(TRUE); + for ($i = 0, $c = count($columns); $i < $c; $i++) + { + $columns[$i] = ($columns[$i]['_literal'] !== FALSE) + ? "\n\t".$columns[$i]['_literal'] + : "\n\t".$this->_process_column($columns[$i]); + } + + $columns = implode(',', $columns) + .$this->_process_primary_keys($table); + + // Are indexes created from within the CREATE TABLE statement? (e.g. in MySQL) + if ($this->_create_table_keys === TRUE) + { + $columns .= $this->_process_indexes($table); + } + + // _create_table will usually have the following format: "%s %s (%s\n)" + $sql = sprintf($this->_create_table.'%s', + $sql, + $this->db->escape_identifiers($table), + $columns, + $this->_create_table_attr($attributes) + ); + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * CREATE TABLE attributes + * + * @param array $attributes Associative array of table attributes + * @return string + */ + protected function _create_table_attr($attributes) + { + $sql = ''; + + foreach (array_keys($attributes) as $key) + { + if (is_string($key)) + { + $sql .= ' '.strtoupper($key).' '.$attributes[$key]; + } + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Drop Table + * + * @param string $table_name Table name + * @param bool $if_exists Whether to add an IF EXISTS condition + * @return bool + */ + public function drop_table($table_name, $if_exists = FALSE) + { + if ($table_name === '') + { + return ($this->db->db_debug) ? $this->db->display_error('db_table_name_required') : FALSE; + } + + if (($query = $this->_drop_table($this->db->dbprefix.$table_name, $if_exists)) === TRUE) + { + return TRUE; + } + + $query = $this->db->query($query); + + // Update table list cache + if ($query && ! empty($this->db->data_cache['table_names'])) + { + $key = array_search(strtolower($this->db->dbprefix.$table_name), array_map('strtolower', $this->db->data_cache['table_names']), TRUE); + if ($key !== FALSE) + { + unset($this->db->data_cache['table_names'][$key]); + } + } + + return $query; + } + + // -------------------------------------------------------------------- + + /** + * Drop Table + * + * Generates a platform-specific DROP TABLE string + * + * @param string $table Table name + * @param bool $if_exists Whether to add an IF EXISTS condition + * @return mixed (Returns a platform-specific DROP table string, or TRUE to indicate there's nothing to do) + */ + protected function _drop_table($table, $if_exists) + { + $sql = 'DROP TABLE'; + + if ($if_exists) + { + if ($this->_drop_table_if === FALSE) + { + if ( ! $this->db->table_exists($table)) + { + return TRUE; + } + } + else + { + $sql = sprintf($this->_drop_table_if, $this->db->escape_identifiers($table)); + } + } + + return $sql.' '.$this->db->escape_identifiers($table); + } + + // -------------------------------------------------------------------- + + /** + * Rename Table + * + * @param string $table_name Old table name + * @param string $new_table_name New table name + * @return bool + */ + public function rename_table($table_name, $new_table_name) + { + if ($table_name === '' OR $new_table_name === '') + { + show_error('A table name is required for that operation.'); + return FALSE; + } + elseif ($this->_rename_table === FALSE) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unsupported_feature') : FALSE; + } + + $result = $this->db->query(sprintf($this->_rename_table, + $this->db->escape_identifiers($this->db->dbprefix.$table_name), + $this->db->escape_identifiers($this->db->dbprefix.$new_table_name)) + ); + + if ($result && ! empty($this->db->data_cache['table_names'])) + { + $key = array_search(strtolower($this->db->dbprefix.$table_name), array_map('strtolower', $this->db->data_cache['table_names']), TRUE); + if ($key !== FALSE) + { + $this->db->data_cache['table_names'][$key] = $this->db->dbprefix.$new_table_name; + } + } + + return $result; + } + + // -------------------------------------------------------------------- + + /** + * Column Add + * + * @todo Remove deprecated $_after option in 3.1+ + * @param string $table Table name + * @param array $field Column definition + * @param string $_after Column for AFTER clause (deprecated) + * @return bool + */ + public function add_column($table, $field, $_after = NULL) + { + // Work-around for literal column definitions + is_array($field) OR $field = array($field); + + foreach (array_keys($field) as $k) + { + // Backwards-compatibility work-around for MySQL/CUBRID AFTER clause (remove in 3.1+) + if ($_after !== NULL && is_array($field[$k]) && ! isset($field[$k]['after'])) + { + $field[$k]['after'] = $_after; + } + + $this->add_field(array($k => $field[$k])); + } + + $sqls = $this->_alter_table('ADD', $this->db->dbprefix.$table, $this->_process_fields()); + $this->_reset(); + if ($sqls === FALSE) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unsupported_feature') : FALSE; + } + + for ($i = 0, $c = count($sqls); $i < $c; $i++) + { + if ($this->db->query($sqls[$i]) === FALSE) + { + return FALSE; + } + } + + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Column Drop + * + * @param string $table Table name + * @param string $column_name Column name + * @return bool + */ + public function drop_column($table, $column_name) + { + $sql = $this->_alter_table('DROP', $this->db->dbprefix.$table, $column_name); + if ($sql === FALSE) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unsupported_feature') : FALSE; + } + + return $this->db->query($sql); + } + + // -------------------------------------------------------------------- + + /** + * Column Modify + * + * @param string $table Table name + * @param string $field Column definition + * @return bool + */ + public function modify_column($table, $field) + { + // Work-around for literal column definitions + is_array($field) OR $field = array($field); + + foreach (array_keys($field) as $k) + { + $this->add_field(array($k => $field[$k])); + } + + if (count($this->fields) === 0) + { + show_error('Field information is required.'); + } + + $sqls = $this->_alter_table('CHANGE', $this->db->dbprefix.$table, $this->_process_fields()); + $this->_reset(); + if ($sqls === FALSE) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unsupported_feature') : FALSE; + } + + for ($i = 0, $c = count($sqls); $i < $c; $i++) + { + if ($this->db->query($sqls[$i]) === FALSE) + { + return FALSE; + } + } + + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table).' '; + + // DROP has everything it needs now. + if ($alter_type === 'DROP') + { + return $sql.'DROP COLUMN '.$this->db->escape_identifiers($field); + } + + $sql .= ($alter_type === 'ADD') + ? 'ADD ' + : $alter_type.' COLUMN '; + + $sqls = array(); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + $sqls[] = $sql + .($field[$i]['_literal'] !== FALSE ? $field[$i]['_literal'] : $this->_process_column($field[$i])); + } + + return $sqls; + } + + // -------------------------------------------------------------------- + + /** + * Process fields + * + * @param bool $create_table + * @return array + */ + protected function _process_fields($create_table = FALSE) + { + $fields = array(); + + foreach ($this->fields as $key => $attributes) + { + if (is_int($key) && ! is_array($attributes)) + { + $fields[] = array('_literal' => $attributes); + continue; + } + + $attributes = array_change_key_case($attributes, CASE_UPPER); + + if ($create_table === TRUE && empty($attributes['TYPE'])) + { + continue; + } + + isset($attributes['TYPE']) && $this->_attr_type($attributes); + + $field = array( + 'name' => $key, + 'new_name' => isset($attributes['NAME']) ? $attributes['NAME'] : NULL, + 'type' => isset($attributes['TYPE']) ? $attributes['TYPE'] : NULL, + 'length' => '', + 'unsigned' => '', + 'null' => NULL, + 'unique' => '', + 'default' => '', + 'auto_increment' => '', + '_literal' => FALSE + ); + + isset($attributes['TYPE']) && $this->_attr_unsigned($attributes, $field); + + if ($create_table === FALSE) + { + if (isset($attributes['AFTER'])) + { + $field['after'] = $attributes['AFTER']; + } + elseif (isset($attributes['FIRST'])) + { + $field['first'] = (bool) $attributes['FIRST']; + } + } + + $this->_attr_default($attributes, $field); + + if (isset($attributes['NULL'])) + { + if ($attributes['NULL'] === TRUE) + { + $field['null'] = empty($this->_null) ? '' : ' '.$this->_null; + } + else + { + $field['null'] = ' NOT NULL'; + } + } + elseif ($create_table === TRUE) + { + $field['null'] = ' NOT NULL'; + } + + $this->_attr_auto_increment($attributes, $field); + $this->_attr_unique($attributes, $field); + + if (isset($attributes['COMMENT'])) + { + $field['comment'] = $this->db->escape($attributes['COMMENT']); + } + + if (isset($attributes['TYPE']) && ! empty($attributes['CONSTRAINT'])) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'ENUM': + case 'SET': + $attributes['CONSTRAINT'] = $this->db->escape($attributes['CONSTRAINT']); + default: + $field['length'] = is_array($attributes['CONSTRAINT']) + ? '('.implode(',', $attributes['CONSTRAINT']).')' + : '('.$attributes['CONSTRAINT'].')'; + break; + } + } + + $fields[] = $field; + } + + return $fields; + } + + // -------------------------------------------------------------------- + + /** + * Process column + * + * @param array $field + * @return string + */ + protected function _process_column($field) + { + return $this->db->escape_identifiers($field['name']) + .' '.$field['type'].$field['length'] + .$field['unsigned'] + .$field['default'] + .$field['null'] + .$field['auto_increment'] + .$field['unique']; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + // Usually overridden by drivers + } + + // -------------------------------------------------------------------- + + /** + * Field attribute UNSIGNED + * + * Depending on the _unsigned property value: + * + * - TRUE will always set $field['unsigned'] to 'UNSIGNED' + * - FALSE will always set $field['unsigned'] to '' + * - array(TYPE) will set $field['unsigned'] to 'UNSIGNED', + * if $attributes['TYPE'] is found in the array + * - array(TYPE => UTYPE) will change $field['type'], + * from TYPE to UTYPE in case of a match + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_unsigned(&$attributes, &$field) + { + if (empty($attributes['UNSIGNED']) OR $attributes['UNSIGNED'] !== TRUE) + { + return; + } + + // Reset the attribute in order to avoid issues if we do type conversion + $attributes['UNSIGNED'] = FALSE; + + if (is_array($this->_unsigned)) + { + foreach (array_keys($this->_unsigned) as $key) + { + if (is_int($key) && strcasecmp($attributes['TYPE'], $this->_unsigned[$key]) === 0) + { + $field['unsigned'] = ' UNSIGNED'; + return; + } + elseif (is_string($key) && strcasecmp($attributes['TYPE'], $key) === 0) + { + $field['type'] = $key; + return; + } + } + + return; + } + + $field['unsigned'] = ($this->_unsigned === TRUE) ? ' UNSIGNED' : ''; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute DEFAULT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_default(&$attributes, &$field) + { + if ($this->_default === FALSE) + { + return; + } + + if (array_key_exists('DEFAULT', $attributes)) + { + if ($attributes['DEFAULT'] === NULL) + { + $field['default'] = empty($this->_null) ? '' : $this->_default.$this->_null; + + // Override the NULL attribute if that's our default + $attributes['NULL'] = TRUE; + $field['null'] = empty($this->_null) ? '' : ' '.$this->_null; + } + else + { + $field['default'] = $this->_default.$this->db->escape($attributes['DEFAULT']); + } + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute UNIQUE + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_unique(&$attributes, &$field) + { + if ( ! empty($attributes['UNIQUE']) && $attributes['UNIQUE'] === TRUE) + { + $field['unique'] = ' UNIQUE'; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE && stripos($field['type'], 'int') !== FALSE) + { + $field['auto_increment'] = ' AUTO_INCREMENT'; + } + } + + // -------------------------------------------------------------------- + + /** + * Process primary keys + * + * @param string $table Table name + * @return string + */ + protected function _process_primary_keys($table) + { + $sql = ''; + + for ($i = 0, $c = count($this->primary_keys); $i < $c; $i++) + { + if ( ! isset($this->fields[$this->primary_keys[$i]])) + { + unset($this->primary_keys[$i]); + } + } + + if (count($this->primary_keys) > 0) + { + $sql .= ",\n\tCONSTRAINT ".$this->db->escape_identifiers('pk_'.$table) + .' PRIMARY KEY('.implode(', ', $this->db->escape_identifiers($this->primary_keys)).')'; + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Process indexes + * + * @param string $table Table name + * @return string[] list of SQL statements + */ + protected function _process_indexes($table) + { + $sqls = array(); + + for ($i = 0, $c = count($this->keys); $i < $c; $i++) + { + if (is_array($this->keys[$i])) + { + for ($i2 = 0, $c2 = count($this->keys[$i]); $i2 < $c2; $i2++) + { + if ( ! isset($this->fields[$this->keys[$i][$i2]])) + { + unset($this->keys[$i][$i2]); + continue; + } + } + } + elseif ( ! isset($this->fields[$this->keys[$i]])) + { + unset($this->keys[$i]); + continue; + } + + is_array($this->keys[$i]) OR $this->keys[$i] = array($this->keys[$i]); + + $sqls[] = 'CREATE INDEX '.$this->db->escape_identifiers($table.'_'.implode('_', $this->keys[$i])) + .' ON '.$this->db->escape_identifiers($table) + .' ('.implode(', ', $this->db->escape_identifiers($this->keys[$i])).');'; + } + + return $sqls; + } + + // -------------------------------------------------------------------- + + /** + * Reset + * + * Resets table creation vars + * + * @return void + */ + protected function _reset() + { + $this->fields = $this->keys = $this->primary_keys = array(); + } + +} diff --git a/ci/system/database/DB_query_builder.php b/ci/system/database/DB_query_builder.php new file mode 100644 index 0000000..9331084 --- /dev/null +++ b/ci/system/database/DB_query_builder.php @@ -0,0 +1,2809 @@ +_protect_identifiers; + + foreach ($select as $val) + { + $val = trim($val); + + if ($val !== '') + { + $this->qb_select[] = $val; + $this->qb_no_escape[] = $escape; + + if ($this->qb_caching === TRUE) + { + $this->qb_cache_select[] = $val; + $this->qb_cache_exists[] = 'select'; + $this->qb_cache_no_escape[] = $escape; + } + } + } + + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Select Max + * + * Generates a SELECT MAX(field) portion of a query + * + * @param string the field + * @param string an alias + * @return CI_DB_query_builder + */ + public function select_max($select = '', $alias = '') + { + return $this->_max_min_avg_sum($select, $alias, 'MAX'); + } + + // -------------------------------------------------------------------- + + /** + * Select Min + * + * Generates a SELECT MIN(field) portion of a query + * + * @param string the field + * @param string an alias + * @return CI_DB_query_builder + */ + public function select_min($select = '', $alias = '') + { + return $this->_max_min_avg_sum($select, $alias, 'MIN'); + } + + // -------------------------------------------------------------------- + + /** + * Select Average + * + * Generates a SELECT AVG(field) portion of a query + * + * @param string the field + * @param string an alias + * @return CI_DB_query_builder + */ + public function select_avg($select = '', $alias = '') + { + return $this->_max_min_avg_sum($select, $alias, 'AVG'); + } + + // -------------------------------------------------------------------- + + /** + * Select Sum + * + * Generates a SELECT SUM(field) portion of a query + * + * @param string the field + * @param string an alias + * @return CI_DB_query_builder + */ + public function select_sum($select = '', $alias = '') + { + return $this->_max_min_avg_sum($select, $alias, 'SUM'); + } + + // -------------------------------------------------------------------- + + /** + * SELECT [MAX|MIN|AVG|SUM]() + * + * @used-by select_max() + * @used-by select_min() + * @used-by select_avg() + * @used-by select_sum() + * + * @param string $select Field name + * @param string $alias + * @param string $type + * @return CI_DB_query_builder + */ + protected function _max_min_avg_sum($select = '', $alias = '', $type = 'MAX') + { + if ( ! is_string($select) OR $select === '') + { + $this->display_error('db_invalid_query'); + } + + $type = strtoupper($type); + + if ( ! in_array($type, array('MAX', 'MIN', 'AVG', 'SUM'))) + { + show_error('Invalid function type: '.$type); + } + + if ($alias === '') + { + $alias = $this->_create_alias_from_table(trim($select)); + } + + $sql = $type.'('.$this->protect_identifiers(trim($select)).') AS '.$this->escape_identifiers(trim($alias)); + + $this->qb_select[] = $sql; + $this->qb_no_escape[] = NULL; + + if ($this->qb_caching === TRUE) + { + $this->qb_cache_select[] = $sql; + $this->qb_cache_exists[] = 'select'; + } + + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Determines the alias name based on the table + * + * @param string $item + * @return string + */ + protected function _create_alias_from_table($item) + { + if (strpos($item, '.') !== FALSE) + { + $item = explode('.', $item); + return end($item); + } + + return $item; + } + + // -------------------------------------------------------------------- + + /** + * DISTINCT + * + * Sets a flag which tells the query string compiler to add DISTINCT + * + * @param bool $val + * @return CI_DB_query_builder + */ + public function distinct($val = TRUE) + { + $this->qb_distinct = is_bool($val) ? $val : TRUE; + return $this; + } + + // -------------------------------------------------------------------- + + /** + * From + * + * Generates the FROM portion of the query + * + * @param mixed $from can be a string or array + * @return CI_DB_query_builder + */ + public function from($from) + { + foreach ((array) $from as $val) + { + if (strpos($val, ',') !== FALSE) + { + foreach (explode(',', $val) as $v) + { + $v = trim($v); + $this->_track_aliases($v); + + $this->qb_from[] = $v = $this->protect_identifiers($v, TRUE, NULL, FALSE); + + if ($this->qb_caching === TRUE) + { + $this->qb_cache_from[] = $v; + $this->qb_cache_exists[] = 'from'; + } + } + } + else + { + $val = trim($val); + + // Extract any aliases that might exist. We use this information + // in the protect_identifiers to know whether to add a table prefix + $this->_track_aliases($val); + + $this->qb_from[] = $val = $this->protect_identifiers($val, TRUE, NULL, FALSE); + + if ($this->qb_caching === TRUE) + { + $this->qb_cache_from[] = $val; + $this->qb_cache_exists[] = 'from'; + } + } + } + + return $this; + } + + // -------------------------------------------------------------------- + + /** + * JOIN + * + * Generates the JOIN portion of the query + * + * @param string + * @param string the join condition + * @param string the type of join + * @param string whether not to try to escape identifiers + * @return CI_DB_query_builder + */ + public function join($table, $cond, $type = '', $escape = NULL) + { + if ($type !== '') + { + $type = strtoupper(trim($type)); + + if ( ! in_array($type, array('LEFT', 'RIGHT', 'OUTER', 'INNER', 'LEFT OUTER', 'RIGHT OUTER', 'FULL OUTER', 'FULL'), TRUE)) + { + $type = ''; + } + else + { + $type .= ' '; + } + } + + // Extract any aliases that might exist. We use this information + // in the protect_identifiers to know whether to add a table prefix + $this->_track_aliases($table); + + is_bool($escape) OR $escape = $this->_protect_identifiers; + + if ( ! $this->_has_operator($cond)) + { + $cond = ' USING ('.($escape ? $this->escape_identifiers($cond) : $cond).')'; + } + elseif ($escape === FALSE) + { + $cond = ' ON '.$cond; + } + else + { + // Split multiple conditions + if (preg_match_all('/\sAND\s|\sOR\s/i', $cond, $joints, PREG_OFFSET_CAPTURE)) + { + $conditions = array(); + $joints = $joints[0]; + array_unshift($joints, array('', 0)); + + for ($i = count($joints) - 1, $pos = strlen($cond); $i >= 0; $i--) + { + $joints[$i][1] += strlen($joints[$i][0]); // offset + $conditions[$i] = substr($cond, $joints[$i][1], $pos - $joints[$i][1]); + $pos = $joints[$i][1] - strlen($joints[$i][0]); + $joints[$i] = $joints[$i][0]; + } + } + else + { + $conditions = array($cond); + $joints = array(''); + } + + $cond = ' ON '; + for ($i = 0, $c = count($conditions); $i < $c; $i++) + { + $operator = $this->_get_operator($conditions[$i]); + $cond .= $joints[$i]; + $cond .= preg_match("/(\(*)?([\[\]\w\.'-]+)".preg_quote($operator)."(.*)/i", $conditions[$i], $match) + ? $match[1].$this->protect_identifiers($match[2]).$operator.$this->protect_identifiers($match[3]) + : $conditions[$i]; + } + } + + // Do we want to escape the table name? + if ($escape === TRUE) + { + $table = $this->protect_identifiers($table, TRUE, NULL, FALSE); + } + + // Assemble the JOIN statement + $this->qb_join[] = $join = $type.'JOIN '.$table.$cond; + + if ($this->qb_caching === TRUE) + { + $this->qb_cache_join[] = $join; + $this->qb_cache_exists[] = 'join'; + } + + return $this; + } + + // -------------------------------------------------------------------- + + /** + * WHERE + * + * Generates the WHERE portion of the query. + * Separates multiple calls with 'AND'. + * + * @param mixed + * @param mixed + * @param bool + * @return CI_DB_query_builder + */ + public function where($key, $value = NULL, $escape = NULL) + { + return $this->_wh('qb_where', $key, $value, 'AND ', $escape); + } + + // -------------------------------------------------------------------- + + /** + * OR WHERE + * + * Generates the WHERE portion of the query. + * Separates multiple calls with 'OR'. + * + * @param mixed + * @param mixed + * @param bool + * @return CI_DB_query_builder + */ + public function or_where($key, $value = NULL, $escape = NULL) + { + return $this->_wh('qb_where', $key, $value, 'OR ', $escape); + } + + // -------------------------------------------------------------------- + + /** + * WHERE, HAVING + * + * @used-by where() + * @used-by or_where() + * @used-by having() + * @used-by or_having() + * + * @param string $qb_key 'qb_where' or 'qb_having' + * @param mixed $key + * @param mixed $value + * @param string $type + * @param bool $escape + * @return CI_DB_query_builder + */ + protected function _wh($qb_key, $key, $value = NULL, $type = 'AND ', $escape = NULL) + { + $qb_cache_key = ($qb_key === 'qb_having') ? 'qb_cache_having' : 'qb_cache_where'; + + if ( ! is_array($key)) + { + $key = array($key => $value); + } + + // If the escape value was not set will base it on the global setting + is_bool($escape) OR $escape = $this->_protect_identifiers; + + foreach ($key as $k => $v) + { + $prefix = (count($this->$qb_key) === 0 && count($this->$qb_cache_key) === 0) + ? $this->_group_get_type('') + : $this->_group_get_type($type); + + if ($v !== NULL) + { + if ($escape === TRUE) + { + $v = $this->escape($v); + } + + if ( ! $this->_has_operator($k)) + { + $k .= ' = '; + } + } + elseif ( ! $this->_has_operator($k)) + { + // value appears not to have been set, assign the test to IS NULL + $k .= ' IS NULL'; + } + elseif (preg_match('/\s*(!?=|<>|\sIS(?:\s+NOT)?\s)\s*$/i', $k, $match, PREG_OFFSET_CAPTURE)) + { + $k = substr($k, 0, $match[0][1]).($match[1][0] === '=' ? ' IS NULL' : ' IS NOT NULL'); + } + + ${$qb_key} = array('condition' => $prefix.$k, 'value' => $v, 'escape' => $escape); + $this->{$qb_key}[] = ${$qb_key}; + if ($this->qb_caching === TRUE) + { + $this->{$qb_cache_key}[] = ${$qb_key}; + $this->qb_cache_exists[] = substr($qb_key, 3); + } + + } + + return $this; + } + + // -------------------------------------------------------------------- + + /** + * WHERE IN + * + * Generates a WHERE field IN('item', 'item') SQL query, + * joined with 'AND' if appropriate. + * + * @param string $key The field to search + * @param array $values The values searched on + * @param bool $escape + * @return CI_DB_query_builder + */ + public function where_in($key = NULL, $values = NULL, $escape = NULL) + { + return $this->_where_in($key, $values, FALSE, 'AND ', $escape); + } + + // -------------------------------------------------------------------- + + /** + * OR WHERE IN + * + * Generates a WHERE field IN('item', 'item') SQL query, + * joined with 'OR' if appropriate. + * + * @param string $key The field to search + * @param array $values The values searched on + * @param bool $escape + * @return CI_DB_query_builder + */ + public function or_where_in($key = NULL, $values = NULL, $escape = NULL) + { + return $this->_where_in($key, $values, FALSE, 'OR ', $escape); + } + + // -------------------------------------------------------------------- + + /** + * WHERE NOT IN + * + * Generates a WHERE field NOT IN('item', 'item') SQL query, + * joined with 'AND' if appropriate. + * + * @param string $key The field to search + * @param array $values The values searched on + * @param bool $escape + * @return CI_DB_query_builder + */ + public function where_not_in($key = NULL, $values = NULL, $escape = NULL) + { + return $this->_where_in($key, $values, TRUE, 'AND ', $escape); + } + + // -------------------------------------------------------------------- + + /** + * OR WHERE NOT IN + * + * Generates a WHERE field NOT IN('item', 'item') SQL query, + * joined with 'OR' if appropriate. + * + * @param string $key The field to search + * @param array $values The values searched on + * @param bool $escape + * @return CI_DB_query_builder + */ + public function or_where_not_in($key = NULL, $values = NULL, $escape = NULL) + { + return $this->_where_in($key, $values, TRUE, 'OR ', $escape); + } + + // -------------------------------------------------------------------- + + /** + * Internal WHERE IN + * + * @used-by where_in() + * @used-by or_where_in() + * @used-by where_not_in() + * @used-by or_where_not_in() + * + * @param string $key The field to search + * @param array $values The values searched on + * @param bool $not If the statement would be IN or NOT IN + * @param string $type + * @param bool $escape + * @return CI_DB_query_builder + */ + protected function _where_in($key = NULL, $values = NULL, $not = FALSE, $type = 'AND ', $escape = NULL) + { + if ($key === NULL OR $values === NULL) + { + return $this; + } + + if ( ! is_array($values)) + { + $values = array($values); + } + + is_bool($escape) OR $escape = $this->_protect_identifiers; + + $not = ($not) ? ' NOT' : ''; + + if ($escape === TRUE) + { + $where_in = array(); + foreach ($values as $value) + { + $where_in[] = $this->escape($value); + } + } + else + { + $where_in = array_values($values); + } + + $prefix = (count($this->qb_where) === 0 && count($this->qb_cache_where) === 0) + ? $this->_group_get_type('') + : $this->_group_get_type($type); + + $where_in = array( + 'condition' => $prefix.$key.$not.' IN('.implode(', ', $where_in).')', + 'value' => NULL, + 'escape' => $escape + ); + + $this->qb_where[] = $where_in; + if ($this->qb_caching === TRUE) + { + $this->qb_cache_where[] = $where_in; + $this->qb_cache_exists[] = 'where'; + } + + return $this; + } + + // -------------------------------------------------------------------- + + /** + * LIKE + * + * Generates a %LIKE% portion of the query. + * Separates multiple calls with 'AND'. + * + * @param mixed $field + * @param string $match + * @param string $side + * @param bool $escape + * @return CI_DB_query_builder + */ + public function like($field, $match = '', $side = 'both', $escape = NULL) + { + return $this->_like($field, $match, 'AND ', $side, '', $escape); + } + + // -------------------------------------------------------------------- + + /** + * NOT LIKE + * + * Generates a NOT LIKE portion of the query. + * Separates multiple calls with 'AND'. + * + * @param mixed $field + * @param string $match + * @param string $side + * @param bool $escape + * @return CI_DB_query_builder + */ + public function not_like($field, $match = '', $side = 'both', $escape = NULL) + { + return $this->_like($field, $match, 'AND ', $side, 'NOT', $escape); + } + + // -------------------------------------------------------------------- + + /** + * OR LIKE + * + * Generates a %LIKE% portion of the query. + * Separates multiple calls with 'OR'. + * + * @param mixed $field + * @param string $match + * @param string $side + * @param bool $escape + * @return CI_DB_query_builder + */ + public function or_like($field, $match = '', $side = 'both', $escape = NULL) + { + return $this->_like($field, $match, 'OR ', $side, '', $escape); + } + + // -------------------------------------------------------------------- + + /** + * OR NOT LIKE + * + * Generates a NOT LIKE portion of the query. + * Separates multiple calls with 'OR'. + * + * @param mixed $field + * @param string $match + * @param string $side + * @param bool $escape + * @return CI_DB_query_builder + */ + public function or_not_like($field, $match = '', $side = 'both', $escape = NULL) + { + return $this->_like($field, $match, 'OR ', $side, 'NOT', $escape); + } + + // -------------------------------------------------------------------- + + /** + * Internal LIKE + * + * @used-by like() + * @used-by or_like() + * @used-by not_like() + * @used-by or_not_like() + * + * @param mixed $field + * @param string $match + * @param string $type + * @param string $side + * @param string $not + * @param bool $escape + * @return CI_DB_query_builder + */ + protected function _like($field, $match = '', $type = 'AND ', $side = 'both', $not = '', $escape = NULL) + { + if ( ! is_array($field)) + { + $field = array($field => $match); + } + + is_bool($escape) OR $escape = $this->_protect_identifiers; + // lowercase $side in case somebody writes e.g. 'BEFORE' instead of 'before' (doh) + $side = strtolower($side); + + foreach ($field as $k => $v) + { + $prefix = (count($this->qb_where) === 0 && count($this->qb_cache_where) === 0) + ? $this->_group_get_type('') : $this->_group_get_type($type); + + if ($escape === TRUE) + { + $v = $this->escape_like_str($v); + } + + switch ($side) + { + case 'none': + $v = "'{$v}'"; + break; + case 'before': + $v = "'%{$v}'"; + break; + case 'after': + $v = "'{$v}%'"; + break; + case 'both': + default: + $v = "'%{$v}%'"; + break; + } + + // some platforms require an escape sequence definition for LIKE wildcards + if ($escape === TRUE && $this->_like_escape_str !== '') + { + $v .= sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + $qb_where = array('condition' => "{$prefix} {$k} {$not} LIKE {$v}", 'value' => NULL, 'escape' => $escape); + $this->qb_where[] = $qb_where; + if ($this->qb_caching === TRUE) + { + $this->qb_cache_where[] = $qb_where; + $this->qb_cache_exists[] = 'where'; + } + } + + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Starts a query group. + * + * @param string $not (Internal use only) + * @param string $type (Internal use only) + * @return CI_DB_query_builder + */ + public function group_start($not = '', $type = 'AND ') + { + $type = $this->_group_get_type($type); + + $this->qb_where_group_started = TRUE; + $prefix = (count($this->qb_where) === 0 && count($this->qb_cache_where) === 0) ? '' : $type; + $where = array( + 'condition' => $prefix.$not.str_repeat(' ', ++$this->qb_where_group_count).' (', + 'value' => NULL, + 'escape' => FALSE + ); + + $this->qb_where[] = $where; + if ($this->qb_caching) + { + $this->qb_cache_where[] = $where; + } + + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Starts a query group, but ORs the group + * + * @return CI_DB_query_builder + */ + public function or_group_start() + { + return $this->group_start('', 'OR '); + } + + // -------------------------------------------------------------------- + + /** + * Starts a query group, but NOTs the group + * + * @return CI_DB_query_builder + */ + public function not_group_start() + { + return $this->group_start('NOT ', 'AND '); + } + + // -------------------------------------------------------------------- + + /** + * Starts a query group, but OR NOTs the group + * + * @return CI_DB_query_builder + */ + public function or_not_group_start() + { + return $this->group_start('NOT ', 'OR '); + } + + // -------------------------------------------------------------------- + + /** + * Ends a query group + * + * @return CI_DB_query_builder + */ + public function group_end() + { + $this->qb_where_group_started = FALSE; + $where = array( + 'condition' => str_repeat(' ', $this->qb_where_group_count--).')', + 'value' => NULL, + 'escape' => FALSE + ); + + $this->qb_where[] = $where; + if ($this->qb_caching) + { + $this->qb_cache_where[] = $where; + } + + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Group_get_type + * + * @used-by group_start() + * @used-by _like() + * @used-by _wh() + * @used-by _where_in() + * + * @param string $type + * @return string + */ + protected function _group_get_type($type) + { + if ($this->qb_where_group_started) + { + $type = ''; + $this->qb_where_group_started = FALSE; + } + + return $type; + } + + // -------------------------------------------------------------------- + + /** + * GROUP BY + * + * @param mixed $by + * @param bool $escape + * @return CI_DB_query_builder + */ + public function group_by($by, $escape = NULL) + { + is_bool($escape) OR $escape = $this->_protect_identifiers; + + if (is_string($by)) + { + $by = ($escape === TRUE) + ? explode(',', $by) + : array($by); + } + + foreach ($by as $val) + { + $val = trim($val); + + if ($val !== '') + { + $val = array('field' => $val, 'escape' => $escape); + + $this->qb_groupby[] = $val; + if ($this->qb_caching === TRUE) + { + $this->qb_cache_groupby[] = $val; + $this->qb_cache_exists[] = 'groupby'; + } + } + } + + return $this; + } + + // -------------------------------------------------------------------- + + /** + * HAVING + * + * Separates multiple calls with 'AND'. + * + * @param string $key + * @param string $value + * @param bool $escape + * @return CI_DB_query_builder + */ + public function having($key, $value = NULL, $escape = NULL) + { + return $this->_wh('qb_having', $key, $value, 'AND ', $escape); + } + + // -------------------------------------------------------------------- + + /** + * OR HAVING + * + * Separates multiple calls with 'OR'. + * + * @param string $key + * @param string $value + * @param bool $escape + * @return CI_DB_query_builder + */ + public function or_having($key, $value = NULL, $escape = NULL) + { + return $this->_wh('qb_having', $key, $value, 'OR ', $escape); + } + + // -------------------------------------------------------------------- + + /** + * ORDER BY + * + * @param string $orderby + * @param string $direction ASC, DESC or RANDOM + * @param bool $escape + * @return CI_DB_query_builder + */ + public function order_by($orderby, $direction = '', $escape = NULL) + { + $direction = strtoupper(trim($direction)); + + if ($direction === 'RANDOM') + { + $direction = ''; + + // Do we have a seed value? + $orderby = ctype_digit((string) $orderby) + ? sprintf($this->_random_keyword[1], $orderby) + : $this->_random_keyword[0]; + } + elseif (empty($orderby)) + { + return $this; + } + elseif ($direction !== '') + { + $direction = in_array($direction, array('ASC', 'DESC'), TRUE) ? ' '.$direction : ''; + } + + is_bool($escape) OR $escape = $this->_protect_identifiers; + + if ($escape === FALSE) + { + $qb_orderby[] = array('field' => $orderby, 'direction' => $direction, 'escape' => FALSE); + } + else + { + $qb_orderby = array(); + foreach (explode(',', $orderby) as $field) + { + $qb_orderby[] = ($direction === '' && preg_match('/\s+(ASC|DESC)$/i', rtrim($field), $match, PREG_OFFSET_CAPTURE)) + ? array('field' => ltrim(substr($field, 0, $match[0][1])), 'direction' => ' '.$match[1][0], 'escape' => TRUE) + : array('field' => trim($field), 'direction' => $direction, 'escape' => TRUE); + } + } + + $this->qb_orderby = array_merge($this->qb_orderby, $qb_orderby); + if ($this->qb_caching === TRUE) + { + $this->qb_cache_orderby = array_merge($this->qb_cache_orderby, $qb_orderby); + $this->qb_cache_exists[] = 'orderby'; + } + + return $this; + } + + // -------------------------------------------------------------------- + + /** + * LIMIT + * + * @param int $value LIMIT value + * @param int $offset OFFSET value + * @return CI_DB_query_builder + */ + public function limit($value, $offset = 0) + { + is_null($value) OR $this->qb_limit = (int) $value; + empty($offset) OR $this->qb_offset = (int) $offset; + + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Sets the OFFSET value + * + * @param int $offset OFFSET value + * @return CI_DB_query_builder + */ + public function offset($offset) + { + empty($offset) OR $this->qb_offset = (int) $offset; + return $this; + } + + // -------------------------------------------------------------------- + + /** + * LIMIT string + * + * Generates a platform-specific LIMIT clause. + * + * @param string $sql SQL Query + * @return string + */ + protected function _limit($sql) + { + return $sql.' LIMIT '.($this->qb_offset ? $this->qb_offset.', ' : '').(int) $this->qb_limit; + } + + // -------------------------------------------------------------------- + + /** + * The "set" function. + * + * Allows key/value pairs to be set for inserting or updating + * + * @param mixed + * @param string + * @param bool + * @return CI_DB_query_builder + */ + public function set($key, $value = '', $escape = NULL) + { + $key = $this->_object_to_array($key); + + if ( ! is_array($key)) + { + $key = array($key => $value); + } + + is_bool($escape) OR $escape = $this->_protect_identifiers; + + foreach ($key as $k => $v) + { + $this->qb_set[$this->protect_identifiers($k, FALSE, $escape)] = ($escape) + ? $this->escape($v) : $v; + } + + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Get SELECT query string + * + * Compiles a SELECT query string and returns the sql. + * + * @param string the table name to select from (optional) + * @param bool TRUE: resets QB values; FALSE: leave QB values alone + * @return string + */ + public function get_compiled_select($table = '', $reset = TRUE) + { + if ($table !== '') + { + $this->_track_aliases($table); + $this->from($table); + } + + $select = $this->_compile_select(); + + if ($reset === TRUE) + { + $this->_reset_select(); + } + + return $select; + } + + // -------------------------------------------------------------------- + + /** + * Get + * + * Compiles the select statement based on the other functions called + * and runs the query + * + * @param string the table + * @param string the limit clause + * @param string the offset clause + * @return CI_DB_result + */ + public function get($table = '', $limit = NULL, $offset = NULL) + { + if ($table !== '') + { + $this->_track_aliases($table); + $this->from($table); + } + + if ( ! empty($limit)) + { + $this->limit($limit, $offset); + } + + $result = $this->query($this->_compile_select()); + $this->_reset_select(); + return $result; + } + + // -------------------------------------------------------------------- + + /** + * "Count All Results" query + * + * Generates a platform-specific query string that counts all records + * returned by an Query Builder query. + * + * @param string + * @param bool the reset clause + * @return int + */ + public function count_all_results($table = '', $reset = TRUE) + { + if ($table !== '') + { + $this->_track_aliases($table); + $this->from($table); + } + + // ORDER BY usage is often problematic here (most notably + // on Microsoft SQL Server) and ultimately unnecessary + // for selecting COUNT(*) ... + $qb_orderby = $this->qb_orderby; + $qb_cache_orderby = $this->qb_cache_orderby; + $this->qb_orderby = $this->qb_cache_orderby = array(); + + $result = ($this->qb_distinct === TRUE OR ! empty($this->qb_groupby) OR ! empty($this->qb_cache_groupby) OR ! empty($this->qb_having) OR $this->qb_limit OR $this->qb_offset) + ? $this->query($this->_count_string.$this->protect_identifiers('numrows')."\nFROM (\n".$this->_compile_select()."\n) CI_count_all_results") + : $this->query($this->_compile_select($this->_count_string.$this->protect_identifiers('numrows'))); + + if ($reset === TRUE) + { + $this->_reset_select(); + } + else + { + $this->qb_orderby = $qb_orderby; + $this->qb_cache_orderby = $qb_cache_orderby; + } + + if ($result->num_rows() === 0) + { + return 0; + } + + $row = $result->row(); + return (int) $row->numrows; + } + + // -------------------------------------------------------------------- + + /** + * get_where() + * + * Allows the where clause, limit and offset to be added directly + * + * @param string $table + * @param string $where + * @param int $limit + * @param int $offset + * @return CI_DB_result + */ + public function get_where($table = '', $where = NULL, $limit = NULL, $offset = NULL) + { + if ($table !== '') + { + $this->from($table); + } + + if ($where !== NULL) + { + $this->where($where); + } + + if ( ! empty($limit)) + { + $this->limit($limit, $offset); + } + + $result = $this->query($this->_compile_select()); + $this->_reset_select(); + return $result; + } + + // -------------------------------------------------------------------- + + /** + * Insert_Batch + * + * Compiles batch insert strings and runs the queries + * + * @param string $table Table to insert into + * @param array $set An associative array of insert values + * @param bool $escape Whether to escape values and identifiers + * @return int Number of rows inserted or FALSE on failure + */ + public function insert_batch($table, $set = NULL, $escape = NULL, $batch_size = 100) + { + if ($set === NULL) + { + if (empty($this->qb_set)) + { + return ($this->db_debug) ? $this->display_error('db_must_use_set') : FALSE; + } + } + else + { + if (empty($set)) + { + return ($this->db_debug) ? $this->display_error('insert_batch() called with no data') : FALSE; + } + + $this->set_insert_batch($set, '', $escape); + } + + if (strlen($table) === 0) + { + if ( ! isset($this->qb_from[0])) + { + return ($this->db_debug) ? $this->display_error('db_must_set_table') : FALSE; + } + + $table = $this->qb_from[0]; + } + + // Batch this baby + $affected_rows = 0; + for ($i = 0, $total = count($this->qb_set); $i < $total; $i += $batch_size) + { + if ($this->query($this->_insert_batch($this->protect_identifiers($table, TRUE, $escape, FALSE), $this->qb_keys, array_slice($this->qb_set, $i, $batch_size)))) + { + $affected_rows += $this->affected_rows(); + } + } + + $this->_reset_write(); + return $affected_rows; + } + + // -------------------------------------------------------------------- + + /** + * Insert batch statement + * + * Generates a platform-specific insert string from the supplied data. + * + * @param string $table Table name + * @param array $keys INSERT keys + * @param array $values INSERT values + * @return string + */ + protected function _insert_batch($table, $keys, $values) + { + return 'INSERT INTO '.$table.' ('.implode(', ', $keys).') VALUES '.implode(', ', $values); + } + + // -------------------------------------------------------------------- + + /** + * The "set_insert_batch" function. Allows key/value pairs to be set for batch inserts + * + * @param mixed + * @param string + * @param bool + * @return CI_DB_query_builder + */ + public function set_insert_batch($key, $value = '', $escape = NULL) + { + $key = $this->_object_to_array_batch($key); + + if ( ! is_array($key)) + { + $key = array($key => $value); + } + + is_bool($escape) OR $escape = $this->_protect_identifiers; + + $keys = array_keys($this->_object_to_array(reset($key))); + sort($keys); + + foreach ($key as $row) + { + $row = $this->_object_to_array($row); + if (count(array_diff($keys, array_keys($row))) > 0 OR count(array_diff(array_keys($row), $keys)) > 0) + { + // batch function above returns an error on an empty array + $this->qb_set[] = array(); + return; + } + + ksort($row); // puts $row in the same order as our keys + + if ($escape !== FALSE) + { + $clean = array(); + foreach ($row as $value) + { + $clean[] = $this->escape($value); + } + + $row = $clean; + } + + $this->qb_set[] = '('.implode(',', $row).')'; + } + + foreach ($keys as $k) + { + $this->qb_keys[] = $this->protect_identifiers($k, FALSE, $escape); + } + + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Get INSERT query string + * + * Compiles an insert query and returns the sql + * + * @param string the table to insert into + * @param bool TRUE: reset QB values; FALSE: leave QB values alone + * @return string + */ + public function get_compiled_insert($table = '', $reset = TRUE) + { + if ($this->_validate_insert($table) === FALSE) + { + return FALSE; + } + + $sql = $this->_insert( + $this->protect_identifiers( + $this->qb_from[0], TRUE, NULL, FALSE + ), + array_keys($this->qb_set), + array_values($this->qb_set) + ); + + if ($reset === TRUE) + { + $this->_reset_write(); + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Insert + * + * Compiles an insert string and runs the query + * + * @param string the table to insert data into + * @param array an associative array of insert values + * @param bool $escape Whether to escape values and identifiers + * @return bool TRUE on success, FALSE on failure + */ + public function insert($table = '', $set = NULL, $escape = NULL) + { + if ($set !== NULL) + { + $this->set($set, '', $escape); + } + + if ($this->_validate_insert($table) === FALSE) + { + return FALSE; + } + + $sql = $this->_insert( + $this->protect_identifiers( + $this->qb_from[0], TRUE, $escape, FALSE + ), + array_keys($this->qb_set), + array_values($this->qb_set) + ); + + $this->_reset_write(); + return $this->query($sql); + } + + // -------------------------------------------------------------------- + + /** + * Validate Insert + * + * This method is used by both insert() and get_compiled_insert() to + * validate that the there data is actually being set and that table + * has been chosen to be inserted into. + * + * @param string the table to insert data into + * @return string + */ + protected function _validate_insert($table = '') + { + if (count($this->qb_set) === 0) + { + return ($this->db_debug) ? $this->display_error('db_must_use_set') : FALSE; + } + + if ($table !== '') + { + $this->qb_from[0] = $table; + } + elseif ( ! isset($this->qb_from[0])) + { + return ($this->db_debug) ? $this->display_error('db_must_set_table') : FALSE; + } + + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Replace + * + * Compiles an replace into string and runs the query + * + * @param string the table to replace data into + * @param array an associative array of insert values + * @return bool TRUE on success, FALSE on failure + */ + public function replace($table = '', $set = NULL) + { + if ($set !== NULL) + { + $this->set($set); + } + + if (count($this->qb_set) === 0) + { + return ($this->db_debug) ? $this->display_error('db_must_use_set') : FALSE; + } + + if ($table === '') + { + if ( ! isset($this->qb_from[0])) + { + return ($this->db_debug) ? $this->display_error('db_must_set_table') : FALSE; + } + + $table = $this->qb_from[0]; + } + + $sql = $this->_replace($this->protect_identifiers($table, TRUE, NULL, FALSE), array_keys($this->qb_set), array_values($this->qb_set)); + + $this->_reset_write(); + return $this->query($sql); + } + + // -------------------------------------------------------------------- + + /** + * Replace statement + * + * Generates a platform-specific replace string from the supplied data + * + * @param string the table name + * @param array the insert keys + * @param array the insert values + * @return string + */ + protected function _replace($table, $keys, $values) + { + return 'REPLACE INTO '.$table.' ('.implode(', ', $keys).') VALUES ('.implode(', ', $values).')'; + } + + // -------------------------------------------------------------------- + + /** + * FROM tables + * + * Groups tables in FROM clauses if needed, so there is no confusion + * about operator precedence. + * + * Note: This is only used (and overridden) by MySQL and CUBRID. + * + * @return string + */ + protected function _from_tables() + { + return implode(', ', $this->qb_from); + } + + // -------------------------------------------------------------------- + + /** + * Get UPDATE query string + * + * Compiles an update query and returns the sql + * + * @param string the table to update + * @param bool TRUE: reset QB values; FALSE: leave QB values alone + * @return string + */ + public function get_compiled_update($table = '', $reset = TRUE) + { + // Combine any cached components with the current statements + $this->_merge_cache(); + + if ($this->_validate_update($table) === FALSE) + { + return FALSE; + } + + $sql = $this->_update($this->qb_from[0], $this->qb_set); + + if ($reset === TRUE) + { + $this->_reset_write(); + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * UPDATE + * + * Compiles an update string and runs the query. + * + * @param string $table + * @param array $set An associative array of update values + * @param mixed $where + * @param int $limit + * @return bool TRUE on success, FALSE on failure + */ + public function update($table = '', $set = NULL, $where = NULL, $limit = NULL) + { + // Combine any cached components with the current statements + $this->_merge_cache(); + + if ($set !== NULL) + { + $this->set($set); + } + + if ($this->_validate_update($table) === FALSE) + { + return FALSE; + } + + if ($where !== NULL) + { + $this->where($where); + } + + if ( ! empty($limit)) + { + $this->limit($limit); + } + + $sql = $this->_update($this->qb_from[0], $this->qb_set); + $this->_reset_write(); + return $this->query($sql); + } + + // -------------------------------------------------------------------- + + /** + * Validate Update + * + * This method is used by both update() and get_compiled_update() to + * validate that data is actually being set and that a table has been + * chosen to be update. + * + * @param string the table to update data on + * @return bool + */ + protected function _validate_update($table) + { + if (count($this->qb_set) === 0) + { + return ($this->db_debug) ? $this->display_error('db_must_use_set') : FALSE; + } + + if ($table !== '') + { + $this->qb_from = array($this->protect_identifiers($table, TRUE, NULL, FALSE)); + } + elseif ( ! isset($this->qb_from[0])) + { + return ($this->db_debug) ? $this->display_error('db_must_set_table') : FALSE; + } + + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Update_Batch + * + * Compiles an update string and runs the query + * + * @param string the table to retrieve the results from + * @param array an associative array of update values + * @param string the where key + * @return int number of rows affected or FALSE on failure + */ + public function update_batch($table, $set = NULL, $index = NULL, $batch_size = 100) + { + // Combine any cached components with the current statements + $this->_merge_cache(); + + if ($index === NULL) + { + return ($this->db_debug) ? $this->display_error('db_must_use_index') : FALSE; + } + + if ($set === NULL) + { + if (empty($this->qb_set_ub)) + { + return ($this->db_debug) ? $this->display_error('db_must_use_set') : FALSE; + } + } + else + { + if (empty($set)) + { + return ($this->db_debug) ? $this->display_error('update_batch() called with no data') : FALSE; + } + + $this->set_update_batch($set, $index); + } + + if (strlen($table) === 0) + { + if ( ! isset($this->qb_from[0])) + { + return ($this->db_debug) ? $this->display_error('db_must_set_table') : FALSE; + } + + $table = $this->qb_from[0]; + } + + // Batch this baby + $affected_rows = 0; + for ($i = 0, $total = count($this->qb_set_ub); $i < $total; $i += $batch_size) + { + if ($this->query($this->_update_batch($this->protect_identifiers($table, TRUE, NULL, FALSE), array_slice($this->qb_set_ub, $i, $batch_size), $index))) + { + $affected_rows += $this->affected_rows(); + } + + $this->qb_where = array(); + } + + $this->_reset_write(); + return $affected_rows; + } + + // -------------------------------------------------------------------- + + /** + * Update_Batch statement + * + * Generates a platform-specific batch update string from the supplied data + * + * @param string $table Table name + * @param array $values Update data + * @param string $index WHERE key + * @return string + */ + protected function _update_batch($table, $values, $index) + { + $ids = array(); + foreach ($values as $key => $val) + { + $ids[] = $val[$index]['value']; + + foreach (array_keys($val) as $field) + { + if ($field !== $index) + { + $final[$val[$field]['field']][] = 'WHEN '.$val[$index]['field'].' = '.$val[$index]['value'].' THEN '.$val[$field]['value']; + } + } + } + + $cases = ''; + foreach ($final as $k => $v) + { + $cases .= $k." = CASE \n" + .implode("\n", $v)."\n" + .'ELSE '.$k.' END, '; + } + + $this->where($val[$index]['field'].' IN('.implode(',', $ids).')', NULL, FALSE); + + return 'UPDATE '.$table.' SET '.substr($cases, 0, -2).$this->_compile_wh('qb_where'); + } + + // -------------------------------------------------------------------- + + /** + * The "set_update_batch" function. Allows key/value pairs to be set for batch updating + * + * @param array + * @param string + * @param bool + * @return CI_DB_query_builder + */ + public function set_update_batch($key, $index = '', $escape = NULL) + { + $key = $this->_object_to_array_batch($key); + + if ( ! is_array($key)) + { + // @todo error + } + + is_bool($escape) OR $escape = $this->_protect_identifiers; + + foreach ($key as $k => $v) + { + $index_set = FALSE; + $clean = array(); + foreach ($v as $k2 => $v2) + { + if ($k2 === $index) + { + $index_set = TRUE; + } + + $clean[$k2] = array( + 'field' => $this->protect_identifiers($k2, FALSE, $escape), + 'value' => ($escape === FALSE ? $v2 : $this->escape($v2)) + ); + } + + if ($index_set === FALSE) + { + return $this->display_error('db_batch_missing_index'); + } + + $this->qb_set_ub[] = $clean; + } + + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Empty Table + * + * Compiles a delete string and runs "DELETE FROM table" + * + * @param string the table to empty + * @return bool TRUE on success, FALSE on failure + */ + public function empty_table($table = '') + { + if ($table === '') + { + if ( ! isset($this->qb_from[0])) + { + return ($this->db_debug) ? $this->display_error('db_must_set_table') : FALSE; + } + + $table = $this->qb_from[0]; + } + else + { + $table = $this->protect_identifiers($table, TRUE, NULL, FALSE); + } + + $sql = $this->_delete($table); + $this->_reset_write(); + return $this->query($sql); + } + + // -------------------------------------------------------------------- + + /** + * Truncate + * + * Compiles a truncate string and runs the query + * If the database does not support the truncate() command + * This function maps to "DELETE FROM table" + * + * @param string the table to truncate + * @return bool TRUE on success, FALSE on failure + */ + public function truncate($table = '') + { + if ($table === '') + { + if ( ! isset($this->qb_from[0])) + { + return ($this->db_debug) ? $this->display_error('db_must_set_table') : FALSE; + } + + $table = $this->qb_from[0]; + } + else + { + $table = $this->protect_identifiers($table, TRUE, NULL, FALSE); + } + + $sql = $this->_truncate($table); + $this->_reset_write(); + return $this->query($sql); + } + + // -------------------------------------------------------------------- + + /** + * Truncate statement + * + * Generates a platform-specific truncate string from the supplied data + * + * If the database does not support the truncate() command, + * then this method maps to 'DELETE FROM table' + * + * @param string the table name + * @return string + */ + protected function _truncate($table) + { + return 'TRUNCATE '.$table; + } + + // -------------------------------------------------------------------- + + /** + * Get DELETE query string + * + * Compiles a delete query string and returns the sql + * + * @param string the table to delete from + * @param bool TRUE: reset QB values; FALSE: leave QB values alone + * @return string + */ + public function get_compiled_delete($table = '', $reset = TRUE) + { + $this->return_delete_sql = TRUE; + $sql = $this->delete($table, '', NULL, $reset); + $this->return_delete_sql = FALSE; + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Delete + * + * Compiles a delete string and runs the query + * + * @param mixed the table(s) to delete from. String or array + * @param mixed the where clause + * @param mixed the limit clause + * @param bool + * @return mixed + */ + public function delete($table = '', $where = '', $limit = NULL, $reset_data = TRUE) + { + // Combine any cached components with the current statements + $this->_merge_cache(); + + if ($table === '') + { + if ( ! isset($this->qb_from[0])) + { + return ($this->db_debug) ? $this->display_error('db_must_set_table') : FALSE; + } + + $table = $this->qb_from[0]; + } + elseif (is_array($table)) + { + empty($where) && $reset_data = FALSE; + + foreach ($table as $single_table) + { + $this->delete($single_table, $where, $limit, $reset_data); + } + + return; + } + else + { + $table = $this->protect_identifiers($table, TRUE, NULL, FALSE); + } + + if ($where !== '') + { + $this->where($where); + } + + if ( ! empty($limit)) + { + $this->limit($limit); + } + + if (count($this->qb_where) === 0) + { + return ($this->db_debug) ? $this->display_error('db_del_must_use_where') : FALSE; + } + + $sql = $this->_delete($table); + if ($reset_data) + { + $this->_reset_write(); + } + + return ($this->return_delete_sql === TRUE) ? $sql : $this->query($sql); + } + + // -------------------------------------------------------------------- + + /** + * Delete statement + * + * Generates a platform-specific delete string from the supplied data + * + * @param string the table name + * @return string + */ + protected function _delete($table) + { + return 'DELETE FROM '.$table.$this->_compile_wh('qb_where') + .($this->qb_limit !== FALSE ? ' LIMIT '.$this->qb_limit : ''); + } + + // -------------------------------------------------------------------- + + /** + * DB Prefix + * + * Prepends a database prefix if one exists in configuration + * + * @param string the table + * @return string + */ + public function dbprefix($table = '') + { + if ($table === '') + { + $this->display_error('db_table_name_required'); + } + + return $this->dbprefix.$table; + } + + // -------------------------------------------------------------------- + + /** + * Set DB Prefix + * + * Set's the DB Prefix to something new without needing to reconnect + * + * @param string the prefix + * @return string + */ + public function set_dbprefix($prefix = '') + { + return $this->dbprefix = $prefix; + } + + // -------------------------------------------------------------------- + + /** + * Track Aliases + * + * Used to track SQL statements written with aliased tables. + * + * @param string The table to inspect + * @return string + */ + protected function _track_aliases($table) + { + if (is_array($table)) + { + foreach ($table as $t) + { + $this->_track_aliases($t); + } + return; + } + + // Does the string contain a comma? If so, we need to separate + // the string into discreet statements + if (strpos($table, ',') !== FALSE) + { + return $this->_track_aliases(explode(',', $table)); + } + + // if a table alias is used we can recognize it by a space + if (strpos($table, ' ') !== FALSE) + { + // if the alias is written with the AS keyword, remove it + $table = preg_replace('/\s+AS\s+/i', ' ', $table); + + // Grab the alias + $table = trim(strrchr($table, ' ')); + + // Store the alias, if it doesn't already exist + if ( ! in_array($table, $this->qb_aliased_tables, TRUE)) + { + $this->qb_aliased_tables[] = $table; + if ($this->qb_caching === TRUE && ! in_array($table, $this->qb_cache_aliased_tables, TRUE)) + { + $this->qb_cache_aliased_tables[] = $table; + $this->qb_cache_exists[] = 'aliased_tables'; + } + } + } + } + + // -------------------------------------------------------------------- + + /** + * Compile the SELECT statement + * + * Generates a query string based on which functions were used. + * Should not be called directly. + * + * @param bool $select_override + * @return string + */ + protected function _compile_select($select_override = FALSE) + { + // Combine any cached components with the current statements + $this->_merge_cache(); + + // Write the "select" portion of the query + if ($select_override !== FALSE) + { + $sql = $select_override; + } + else + { + $sql = ( ! $this->qb_distinct) ? 'SELECT ' : 'SELECT DISTINCT '; + + if (count($this->qb_select) === 0) + { + $sql .= '*'; + } + else + { + // Cycle through the "select" portion of the query and prep each column name. + // The reason we protect identifiers here rather than in the select() function + // is because until the user calls the from() function we don't know if there are aliases + foreach ($this->qb_select as $key => $val) + { + $no_escape = isset($this->qb_no_escape[$key]) ? $this->qb_no_escape[$key] : NULL; + $this->qb_select[$key] = $this->protect_identifiers($val, FALSE, $no_escape); + } + + $sql .= implode(', ', $this->qb_select); + } + } + + // Write the "FROM" portion of the query + if (count($this->qb_from) > 0) + { + $sql .= "\nFROM ".$this->_from_tables(); + } + + // Write the "JOIN" portion of the query + if (count($this->qb_join) > 0) + { + $sql .= "\n".implode("\n", $this->qb_join); + } + + $sql .= $this->_compile_wh('qb_where') + .$this->_compile_group_by() + .$this->_compile_wh('qb_having') + .$this->_compile_order_by(); // ORDER BY + + // LIMIT + if ($this->qb_limit !== FALSE OR $this->qb_offset) + { + return $this->_limit($sql."\n"); + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Compile WHERE, HAVING statements + * + * Escapes identifiers in WHERE and HAVING statements at execution time. + * + * Required so that aliases are tracked properly, regardless of whether + * where(), or_where(), having(), or_having are called prior to from(), + * join() and dbprefix is added only if needed. + * + * @param string $qb_key 'qb_where' or 'qb_having' + * @return string SQL statement + */ + protected function _compile_wh($qb_key) + { + if (count($this->$qb_key) > 0) + { + for ($i = 0, $c = count($this->$qb_key); $i < $c; $i++) + { + // Is this condition already compiled? + if (is_string($this->{$qb_key}[$i])) + { + continue; + } + elseif ($this->{$qb_key}[$i]['escape'] === FALSE) + { + $this->{$qb_key}[$i] = $this->{$qb_key}[$i]['condition'].(isset($this->{$qb_key}[$i]['value']) ? ' '.$this->{$qb_key}[$i]['value'] : ''); + continue; + } + + // Split multiple conditions + $conditions = preg_split( + '/((?:^|\s+)AND\s+|(?:^|\s+)OR\s+)/i', + $this->{$qb_key}[$i]['condition'], + -1, + PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY + ); + + for ($ci = 0, $cc = count($conditions); $ci < $cc; $ci++) + { + if (($op = $this->_get_operator($conditions[$ci])) === FALSE + OR ! preg_match('/^(\(?)(.*)('.preg_quote($op, '/').')\s*(.*(? '(test <= foo)', /* the whole thing */ + // 1 => '(', /* optional */ + // 2 => 'test', /* the field name */ + // 3 => ' <= ', /* $op */ + // 4 => 'foo', /* optional, if $op is e.g. 'IS NULL' */ + // 5 => ')' /* optional */ + // ); + + if ( ! empty($matches[4])) + { + $this->_is_literal($matches[4]) OR $matches[4] = $this->protect_identifiers(trim($matches[4])); + $matches[4] = ' '.$matches[4]; + } + + $conditions[$ci] = $matches[1].$this->protect_identifiers(trim($matches[2])) + .' '.trim($matches[3]).$matches[4].$matches[5]; + } + + $this->{$qb_key}[$i] = implode('', $conditions).(isset($this->{$qb_key}[$i]['value']) ? ' '.$this->{$qb_key}[$i]['value'] : ''); + } + + return ($qb_key === 'qb_having' ? "\nHAVING " : "\nWHERE ") + .implode("\n", $this->$qb_key); + } + + return ''; + } + + // -------------------------------------------------------------------- + + /** + * Compile GROUP BY + * + * Escapes identifiers in GROUP BY statements at execution time. + * + * Required so that aliases are tracked properly, regardless of whether + * group_by() is called prior to from(), join() and dbprefix is added + * only if needed. + * + * @return string SQL statement + */ + protected function _compile_group_by() + { + if (count($this->qb_groupby) > 0) + { + for ($i = 0, $c = count($this->qb_groupby); $i < $c; $i++) + { + // Is it already compiled? + if (is_string($this->qb_groupby[$i])) + { + continue; + } + + $this->qb_groupby[$i] = ($this->qb_groupby[$i]['escape'] === FALSE OR $this->_is_literal($this->qb_groupby[$i]['field'])) + ? $this->qb_groupby[$i]['field'] + : $this->protect_identifiers($this->qb_groupby[$i]['field']); + } + + return "\nGROUP BY ".implode(', ', $this->qb_groupby); + } + + return ''; + } + + // -------------------------------------------------------------------- + + /** + * Compile ORDER BY + * + * Escapes identifiers in ORDER BY statements at execution time. + * + * Required so that aliases are tracked properly, regardless of whether + * order_by() is called prior to from(), join() and dbprefix is added + * only if needed. + * + * @return string SQL statement + */ + protected function _compile_order_by() + { + if (empty($this->qb_orderby)) + { + return ''; + } + + for ($i = 0, $c = count($this->qb_orderby); $i < $c; $i++) + { + if (is_string($this->qb_orderby[$i])) + { + continue; + } + + if ($this->qb_orderby[$i]['escape'] !== FALSE && ! $this->_is_literal($this->qb_orderby[$i]['field'])) + { + $this->qb_orderby[$i]['field'] = $this->protect_identifiers($this->qb_orderby[$i]['field']); + } + + $this->qb_orderby[$i] = $this->qb_orderby[$i]['field'].$this->qb_orderby[$i]['direction']; + } + + return "\nORDER BY ".implode(', ', $this->qb_orderby); + } + + // -------------------------------------------------------------------- + + /** + * Object to Array + * + * Takes an object as input and converts the class variables to array key/vals + * + * @param object + * @return array + */ + protected function _object_to_array($object) + { + if ( ! is_object($object)) + { + return $object; + } + + $array = array(); + foreach (get_object_vars($object) as $key => $val) + { + // There are some built in keys we need to ignore for this conversion + if ( ! is_object($val) && ! is_array($val) && $key !== '_parent_name') + { + $array[$key] = $val; + } + } + + return $array; + } + + // -------------------------------------------------------------------- + + /** + * Object to Array + * + * Takes an object as input and converts the class variables to array key/vals + * + * @param object + * @return array + */ + protected function _object_to_array_batch($object) + { + if ( ! is_object($object)) + { + return $object; + } + + $array = array(); + $out = get_object_vars($object); + $fields = array_keys($out); + + foreach ($fields as $val) + { + // There are some built in keys we need to ignore for this conversion + if ($val !== '_parent_name') + { + $i = 0; + foreach ($out[$val] as $data) + { + $array[$i++][$val] = $data; + } + } + } + + return $array; + } + + // -------------------------------------------------------------------- + + /** + * Start Cache + * + * Starts QB caching + * + * @return CI_DB_query_builder + */ + public function start_cache() + { + $this->qb_caching = TRUE; + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Stop Cache + * + * Stops QB caching + * + * @return CI_DB_query_builder + */ + public function stop_cache() + { + $this->qb_caching = FALSE; + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Flush Cache + * + * Empties the QB cache + * + * @return CI_DB_query_builder + */ + public function flush_cache() + { + $this->_reset_run(array( + 'qb_cache_select' => array(), + 'qb_cache_from' => array(), + 'qb_cache_join' => array(), + 'qb_cache_where' => array(), + 'qb_cache_groupby' => array(), + 'qb_cache_having' => array(), + 'qb_cache_orderby' => array(), + 'qb_cache_set' => array(), + 'qb_cache_exists' => array(), + 'qb_cache_no_escape' => array(), + 'qb_cache_aliased_tables' => array() + )); + + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Merge Cache + * + * When called, this function merges any cached QB arrays with + * locally called ones. + * + * @return void + */ + protected function _merge_cache() + { + if (count($this->qb_cache_exists) === 0) + { + return; + } + elseif (in_array('select', $this->qb_cache_exists, TRUE)) + { + $qb_no_escape = $this->qb_cache_no_escape; + } + + foreach (array_unique($this->qb_cache_exists) as $val) // select, from, etc. + { + $qb_variable = 'qb_'.$val; + $qb_cache_var = 'qb_cache_'.$val; + $qb_new = $this->$qb_cache_var; + + for ($i = 0, $c = count($this->$qb_variable); $i < $c; $i++) + { + if ( ! in_array($this->{$qb_variable}[$i], $qb_new, TRUE)) + { + $qb_new[] = $this->{$qb_variable}[$i]; + if ($val === 'select') + { + $qb_no_escape[] = $this->qb_no_escape[$i]; + } + } + } + + $this->$qb_variable = $qb_new; + if ($val === 'select') + { + $this->qb_no_escape = $qb_no_escape; + } + } + } + + // -------------------------------------------------------------------- + + /** + * Is literal + * + * Determines if a string represents a literal value or a field name + * + * @param string $str + * @return bool + */ + protected function _is_literal($str) + { + $str = trim($str); + + if (empty($str) OR ctype_digit($str) OR (string) (float) $str === $str OR in_array(strtoupper($str), array('TRUE', 'FALSE'), TRUE)) + { + return TRUE; + } + + static $_str; + + if (empty($_str)) + { + $_str = ($this->_escape_char !== '"') + ? array('"', "'") : array("'"); + } + + return in_array($str[0], $_str, TRUE); + } + + // -------------------------------------------------------------------- + + /** + * Reset Query Builder values. + * + * Publicly-visible method to reset the QB values. + * + * @return CI_DB_query_builder + */ + public function reset_query() + { + $this->_reset_select(); + $this->_reset_write(); + return $this; + } + + // -------------------------------------------------------------------- + + /** + * Resets the query builder values. Called by the get() function + * + * @param array An array of fields to reset + * @return void + */ + protected function _reset_run($qb_reset_items) + { + foreach ($qb_reset_items as $item => $default_value) + { + $this->$item = $default_value; + } + } + + // -------------------------------------------------------------------- + + /** + * Resets the query builder values. Called by the get() function + * + * @return void + */ + protected function _reset_select() + { + $this->_reset_run(array( + 'qb_select' => array(), + 'qb_from' => array(), + 'qb_join' => array(), + 'qb_where' => array(), + 'qb_groupby' => array(), + 'qb_having' => array(), + 'qb_orderby' => array(), + 'qb_aliased_tables' => array(), + 'qb_no_escape' => array(), + 'qb_distinct' => FALSE, + 'qb_limit' => FALSE, + 'qb_offset' => FALSE + )); + } + + // -------------------------------------------------------------------- + + /** + * Resets the query builder "write" values. + * + * Called by the insert() update() insert_batch() update_batch() and delete() functions + * + * @return void + */ + protected function _reset_write() + { + $this->_reset_run(array( + 'qb_set' => array(), + 'qb_set_ub' => array(), + 'qb_from' => array(), + 'qb_join' => array(), + 'qb_where' => array(), + 'qb_orderby' => array(), + 'qb_keys' => array(), + 'qb_limit' => FALSE + )); + } + +} diff --git a/ci/system/database/DB_result.php b/ci/system/database/DB_result.php new file mode 100644 index 0000000..94da294 --- /dev/null +++ b/ci/system/database/DB_result.php @@ -0,0 +1,666 @@ +conn_id = $driver_object->conn_id; + $this->result_id = $driver_object->result_id; + } + + // -------------------------------------------------------------------- + + /** + * Number of rows in the result set + * + * @return int + */ + public function num_rows() + { + if (is_int($this->num_rows)) + { + return $this->num_rows; + } + elseif (count($this->result_array) > 0) + { + return $this->num_rows = count($this->result_array); + } + elseif (count($this->result_object) > 0) + { + return $this->num_rows = count($this->result_object); + } + + return $this->num_rows = count($this->result_array()); + } + + // -------------------------------------------------------------------- + + /** + * Query result. Acts as a wrapper function for the following functions. + * + * @param string $type 'object', 'array' or a custom class name + * @return array + */ + public function result($type = 'object') + { + if ($type === 'array') + { + return $this->result_array(); + } + elseif ($type === 'object') + { + return $this->result_object(); + } + + return $this->custom_result_object($type); + } + + // -------------------------------------------------------------------- + + /** + * Custom query result. + * + * @param string $class_name + * @return array + */ + public function custom_result_object($class_name) + { + if (isset($this->custom_result_object[$class_name])) + { + return $this->custom_result_object[$class_name]; + } + elseif ( ! $this->result_id OR $this->num_rows === 0) + { + return array(); + } + + // Don't fetch the result set again if we already have it + $_data = NULL; + if (($c = count($this->result_array)) > 0) + { + $_data = 'result_array'; + } + elseif (($c = count($this->result_object)) > 0) + { + $_data = 'result_object'; + } + + if ($_data !== NULL) + { + for ($i = 0; $i < $c; $i++) + { + $this->custom_result_object[$class_name][$i] = new $class_name(); + + foreach ($this->{$_data}[$i] as $key => $value) + { + $this->custom_result_object[$class_name][$i]->$key = $value; + } + } + + return $this->custom_result_object[$class_name]; + } + + is_null($this->row_data) OR $this->data_seek(0); + $this->custom_result_object[$class_name] = array(); + + while ($row = $this->_fetch_object($class_name)) + { + $this->custom_result_object[$class_name][] = $row; + } + + return $this->custom_result_object[$class_name]; + } + + // -------------------------------------------------------------------- + + /** + * Query result. "object" version. + * + * @return array + */ + public function result_object() + { + if (count($this->result_object) > 0) + { + return $this->result_object; + } + + // In the event that query caching is on, the result_id variable + // will not be a valid resource so we'll simply return an empty + // array. + if ( ! $this->result_id OR $this->num_rows === 0) + { + return array(); + } + + if (($c = count($this->result_array)) > 0) + { + for ($i = 0; $i < $c; $i++) + { + $this->result_object[$i] = (object) $this->result_array[$i]; + } + + return $this->result_object; + } + + is_null($this->row_data) OR $this->data_seek(0); + while ($row = $this->_fetch_object()) + { + $this->result_object[] = $row; + } + + return $this->result_object; + } + + // -------------------------------------------------------------------- + + /** + * Query result. "array" version. + * + * @return array + */ + public function result_array() + { + if (count($this->result_array) > 0) + { + return $this->result_array; + } + + // In the event that query caching is on, the result_id variable + // will not be a valid resource so we'll simply return an empty + // array. + if ( ! $this->result_id OR $this->num_rows === 0) + { + return array(); + } + + if (($c = count($this->result_object)) > 0) + { + for ($i = 0; $i < $c; $i++) + { + $this->result_array[$i] = (array) $this->result_object[$i]; + } + + return $this->result_array; + } + + is_null($this->row_data) OR $this->data_seek(0); + while ($row = $this->_fetch_assoc()) + { + $this->result_array[] = $row; + } + + return $this->result_array; + } + + // -------------------------------------------------------------------- + + /** + * Row + * + * A wrapper method. + * + * @param mixed $n + * @param string $type 'object' or 'array' + * @return mixed + */ + public function row($n = 0, $type = 'object') + { + if ( ! is_numeric($n)) + { + // We cache the row data for subsequent uses + is_array($this->row_data) OR $this->row_data = $this->row_array(0); + + // array_key_exists() instead of isset() to allow for NULL values + if (empty($this->row_data) OR ! array_key_exists($n, $this->row_data)) + { + return NULL; + } + + return $this->row_data[$n]; + } + + if ($type === 'object') return $this->row_object($n); + elseif ($type === 'array') return $this->row_array($n); + + return $this->custom_row_object($n, $type); + } + + // -------------------------------------------------------------------- + + /** + * Assigns an item into a particular column slot + * + * @param mixed $key + * @param mixed $value + * @return void + */ + public function set_row($key, $value = NULL) + { + // We cache the row data for subsequent uses + if ( ! is_array($this->row_data)) + { + $this->row_data = $this->row_array(0); + } + + if (is_array($key)) + { + foreach ($key as $k => $v) + { + $this->row_data[$k] = $v; + } + return; + } + + if ($key !== '' && $value !== NULL) + { + $this->row_data[$key] = $value; + } + } + + // -------------------------------------------------------------------- + + /** + * Returns a single result row - custom object version + * + * @param int $n + * @param string $type + * @return object + */ + public function custom_row_object($n, $type) + { + isset($this->custom_result_object[$type]) OR $this->custom_result_object[$type] = $this->custom_result_object($type); + + if (count($this->custom_result_object[$type]) === 0) + { + return NULL; + } + + if ($n !== $this->current_row && isset($this->custom_result_object[$type][$n])) + { + $this->current_row = $n; + } + + return $this->custom_result_object[$type][$this->current_row]; + } + + // -------------------------------------------------------------------- + + /** + * Returns a single result row - object version + * + * @param int $n + * @return object + */ + public function row_object($n = 0) + { + $result = $this->result_object(); + if (count($result) === 0) + { + return NULL; + } + + if ($n !== $this->current_row && isset($result[$n])) + { + $this->current_row = $n; + } + + return $result[$this->current_row]; + } + + // -------------------------------------------------------------------- + + /** + * Returns a single result row - array version + * + * @param int $n + * @return array + */ + public function row_array($n = 0) + { + $result = $this->result_array(); + if (count($result) === 0) + { + return NULL; + } + + if ($n !== $this->current_row && isset($result[$n])) + { + $this->current_row = $n; + } + + return $result[$this->current_row]; + } + + // -------------------------------------------------------------------- + + /** + * Returns the "first" row + * + * @param string $type + * @return mixed + */ + public function first_row($type = 'object') + { + $result = $this->result($type); + return (count($result) === 0) ? NULL : $result[0]; + } + + // -------------------------------------------------------------------- + + /** + * Returns the "last" row + * + * @param string $type + * @return mixed + */ + public function last_row($type = 'object') + { + $result = $this->result($type); + return (count($result) === 0) ? NULL : $result[count($result) - 1]; + } + + // -------------------------------------------------------------------- + + /** + * Returns the "next" row + * + * @param string $type + * @return mixed + */ + public function next_row($type = 'object') + { + $result = $this->result($type); + if (count($result) === 0) + { + return NULL; + } + + return isset($result[$this->current_row + 1]) + ? $result[++$this->current_row] + : NULL; + } + + // -------------------------------------------------------------------- + + /** + * Returns the "previous" row + * + * @param string $type + * @return mixed + */ + public function previous_row($type = 'object') + { + $result = $this->result($type); + if (count($result) === 0) + { + return NULL; + } + + if (isset($result[$this->current_row - 1])) + { + --$this->current_row; + } + return $result[$this->current_row]; + } + + // -------------------------------------------------------------------- + + /** + * Returns an unbuffered row and move pointer to next row + * + * @param string $type 'array', 'object' or a custom class name + * @return mixed + */ + public function unbuffered_row($type = 'object') + { + if ($type === 'array') + { + return $this->_fetch_assoc(); + } + elseif ($type === 'object') + { + return $this->_fetch_object(); + } + + return $this->_fetch_object($type); + } + + // -------------------------------------------------------------------- + + /** + * The following methods are normally overloaded by the identically named + * methods in the platform-specific driver -- except when query caching + * is used. When caching is enabled we do not load the other driver. + * These functions are primarily here to prevent undefined function errors + * when a cached result object is in use. They are not otherwise fully + * operational due to the unavailability of the database resource IDs with + * cached results. + */ + + // -------------------------------------------------------------------- + + /** + * Number of fields in the result set + * + * Overridden by driver result classes. + * + * @return int + */ + public function num_fields() + { + return 0; + } + + // -------------------------------------------------------------------- + + /** + * Fetch Field Names + * + * Generates an array of column names. + * + * Overridden by driver result classes. + * + * @return array + */ + public function list_fields() + { + return array(); + } + + // -------------------------------------------------------------------- + + /** + * Field data + * + * Generates an array of objects containing field meta-data. + * + * Overridden by driver result classes. + * + * @return array + */ + public function field_data() + { + return array(); + } + + // -------------------------------------------------------------------- + + /** + * Free the result + * + * Overridden by driver result classes. + * + * @return void + */ + public function free_result() + { + $this->result_id = FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Data Seek + * + * Moves the internal pointer to the desired offset. We call + * this internally before fetching results to make sure the + * result set starts at zero. + * + * Overridden by driver result classes. + * + * @param int $n + * @return bool + */ + public function data_seek($n = 0) + { + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Result - associative array + * + * Returns the result set as an array. + * + * Overridden by driver result classes. + * + * @return array + */ + protected function _fetch_assoc() + { + return array(); + } + + // -------------------------------------------------------------------- + + /** + * Result - object + * + * Returns the result set as an object. + * + * Overridden by driver result classes. + * + * @param string $class_name + * @return object + */ + protected function _fetch_object($class_name = 'stdClass') + { + return new $class_name(); + } + +} diff --git a/ci/system/database/DB_utility.php b/ci/system/database/DB_utility.php new file mode 100644 index 0000000..11aa67b --- /dev/null +++ b/ci/system/database/DB_utility.php @@ -0,0 +1,425 @@ +db =& $db; + log_message('info', 'Database Utility Class Initialized'); + } + + // -------------------------------------------------------------------- + + /** + * List databases + * + * @return array + */ + public function list_databases() + { + // Is there a cached result? + if (isset($this->db->data_cache['db_names'])) + { + return $this->db->data_cache['db_names']; + } + elseif ($this->_list_databases === FALSE) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unsupported_feature') : FALSE; + } + + $this->db->data_cache['db_names'] = array(); + + $query = $this->db->query($this->_list_databases); + if ($query === FALSE) + { + return $this->db->data_cache['db_names']; + } + + for ($i = 0, $query = $query->result_array(), $c = count($query); $i < $c; $i++) + { + $this->db->data_cache['db_names'][] = current($query[$i]); + } + + return $this->db->data_cache['db_names']; + } + + // -------------------------------------------------------------------- + + /** + * Determine if a particular database exists + * + * @param string $database_name + * @return bool + */ + public function database_exists($database_name) + { + return in_array($database_name, $this->list_databases()); + } + + // -------------------------------------------------------------------- + + /** + * Optimize Table + * + * @param string $table_name + * @return mixed + */ + public function optimize_table($table_name) + { + if ($this->_optimize_table === FALSE) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unsupported_feature') : FALSE; + } + + $query = $this->db->query(sprintf($this->_optimize_table, $this->db->escape_identifiers($table_name))); + if ($query !== FALSE) + { + $query = $query->result_array(); + return current($query); + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Optimize Database + * + * @return mixed + */ + public function optimize_database() + { + if ($this->_optimize_table === FALSE) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unsupported_feature') : FALSE; + } + + $result = array(); + foreach ($this->db->list_tables() as $table_name) + { + $res = $this->db->query(sprintf($this->_optimize_table, $this->db->escape_identifiers($table_name))); + if (is_bool($res)) + { + return $res; + } + + // Build the result array... + $res = $res->result_array(); + $res = current($res); + $key = str_replace($this->db->database.'.', '', current($res)); + $keys = array_keys($res); + unset($res[$keys[0]]); + + $result[$key] = $res; + } + + return $result; + } + + // -------------------------------------------------------------------- + + /** + * Repair Table + * + * @param string $table_name + * @return mixed + */ + public function repair_table($table_name) + { + if ($this->_repair_table === FALSE) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unsupported_feature') : FALSE; + } + + $query = $this->db->query(sprintf($this->_repair_table, $this->db->escape_identifiers($table_name))); + if (is_bool($query)) + { + return $query; + } + + $query = $query->result_array(); + return current($query); + } + + // -------------------------------------------------------------------- + + /** + * Generate CSV from a query result object + * + * @param object $query Query result object + * @param string $delim Delimiter (default: ,) + * @param string $newline Newline character (default: \n) + * @param string $enclosure Enclosure (default: ") + * @return string + */ + public function csv_from_result($query, $delim = ',', $newline = "\n", $enclosure = '"') + { + if ( ! is_object($query) OR ! method_exists($query, 'list_fields')) + { + show_error('You must submit a valid result object'); + } + + $out = ''; + // First generate the headings from the table column names + foreach ($query->list_fields() as $name) + { + $out .= $enclosure.str_replace($enclosure, $enclosure.$enclosure, $name).$enclosure.$delim; + } + + $out = substr($out, 0, -strlen($delim)).$newline; + + // Next blast through the result array and build out the rows + while ($row = $query->unbuffered_row('array')) + { + $line = array(); + foreach ($row as $item) + { + $line[] = $enclosure.str_replace($enclosure, $enclosure.$enclosure, (string) $item).$enclosure; + } + $out .= implode($delim, $line).$newline; + } + + return $out; + } + + // -------------------------------------------------------------------- + + /** + * Generate XML data from a query result object + * + * @param object $query Query result object + * @param array $params Any preferences + * @return string + */ + public function xml_from_result($query, $params = array()) + { + if ( ! is_object($query) OR ! method_exists($query, 'list_fields')) + { + show_error('You must submit a valid result object'); + } + + // Set our default values + foreach (array('root' => 'root', 'element' => 'element', 'newline' => "\n", 'tab' => "\t") as $key => $val) + { + if ( ! isset($params[$key])) + { + $params[$key] = $val; + } + } + + // Create variables for convenience + extract($params); + + // Load the xml helper + get_instance()->load->helper('xml'); + + // Generate the result + $xml = '<'.$root.'>'.$newline; + while ($row = $query->unbuffered_row()) + { + $xml .= $tab.'<'.$element.'>'.$newline; + foreach ($row as $key => $val) + { + $xml .= $tab.$tab.'<'.$key.'>'.xml_convert($val).''.$newline; + } + $xml .= $tab.''.$newline; + } + + return $xml.''.$newline; + } + + // -------------------------------------------------------------------- + + /** + * Database Backup + * + * @param array $params + * @return string + */ + public function backup($params = array()) + { + // If the parameters have not been submitted as an + // array then we know that it is simply the table + // name, which is a valid short cut. + if (is_string($params)) + { + $params = array('tables' => $params); + } + + // Set up our default preferences + $prefs = array( + 'tables' => array(), + 'ignore' => array(), + 'filename' => '', + 'format' => 'gzip', // gzip, zip, txt + 'add_drop' => TRUE, + 'add_insert' => TRUE, + 'newline' => "\n", + 'foreign_key_checks' => TRUE + ); + + // Did the user submit any preferences? If so set them.... + if (count($params) > 0) + { + foreach ($prefs as $key => $val) + { + if (isset($params[$key])) + { + $prefs[$key] = $params[$key]; + } + } + } + + // Are we backing up a complete database or individual tables? + // If no table names were submitted we'll fetch the entire table list + if (count($prefs['tables']) === 0) + { + $prefs['tables'] = $this->db->list_tables(); + } + + // Validate the format + if ( ! in_array($prefs['format'], array('gzip', 'zip', 'txt'), TRUE)) + { + $prefs['format'] = 'txt'; + } + + // Is the encoder supported? If not, we'll either issue an + // error or use plain text depending on the debug settings + if (($prefs['format'] === 'gzip' && ! function_exists('gzencode')) + OR ($prefs['format'] === 'zip' && ! function_exists('gzcompress'))) + { + if ($this->db->db_debug) + { + return $this->db->display_error('db_unsupported_compression'); + } + + $prefs['format'] = 'txt'; + } + + // Was a Zip file requested? + if ($prefs['format'] === 'zip') + { + // Set the filename if not provided (only needed with Zip files) + if ($prefs['filename'] === '') + { + $prefs['filename'] = (count($prefs['tables']) === 1 ? $prefs['tables'] : $this->db->database) + .date('Y-m-d_H-i', time()).'.sql'; + } + else + { + // If they included the .zip file extension we'll remove it + if (preg_match('|.+?\.zip$|', $prefs['filename'])) + { + $prefs['filename'] = str_replace('.zip', '', $prefs['filename']); + } + + // Tack on the ".sql" file extension if needed + if ( ! preg_match('|.+?\.sql$|', $prefs['filename'])) + { + $prefs['filename'] .= '.sql'; + } + } + + // Load the Zip class and output it + $CI =& get_instance(); + $CI->load->library('zip'); + $CI->zip->add_data($prefs['filename'], $this->_backup($prefs)); + return $CI->zip->get_zip(); + } + elseif ($prefs['format'] === 'txt') // Was a text file requested? + { + return $this->_backup($prefs); + } + elseif ($prefs['format'] === 'gzip') // Was a Gzip file requested? + { + return gzencode($this->_backup($prefs)); + } + + return; + } + +} diff --git a/ci/system/database/drivers/cubrid/cubrid_driver.php b/ci/system/database/drivers/cubrid/cubrid_driver.php new file mode 100644 index 0000000..bd01be6 --- /dev/null +++ b/ci/system/database/drivers/cubrid/cubrid_driver.php @@ -0,0 +1,406 @@ +dsn, $matches)) + { + if (stripos($matches[2], 'autocommit=off') !== FALSE) + { + $this->auto_commit = FALSE; + } + } + else + { + // If no port is defined by the user, use the default value + empty($this->port) OR $this->port = 33000; + } + } + + // -------------------------------------------------------------------- + + /** + * Non-persistent database connection + * + * @param bool $persistent + * @return resource + */ + public function db_connect($persistent = FALSE) + { + if (preg_match('/^CUBRID:[^:]+(:[0-9][1-9]{0,4})?:[^:]+:([^:]*):([^:]*):(\?.+)?$/', $this->dsn, $matches)) + { + $func = ($persistent !== TRUE) ? 'cubrid_connect_with_url' : 'cubrid_pconnect_with_url'; + return ($matches[2] === '' && $matches[3] === '' && $this->username !== '' && $this->password !== '') + ? $func($this->dsn, $this->username, $this->password) + : $func($this->dsn); + } + + $func = ($persistent !== TRUE) ? 'cubrid_connect' : 'cubrid_pconnect'; + return ($this->username !== '') + ? $func($this->hostname, $this->port, $this->database, $this->username, $this->password) + : $func($this->hostname, $this->port, $this->database); + } + + // -------------------------------------------------------------------- + + /** + * Reconnect + * + * Keep / reestablish the db connection if no queries have been + * sent for a length of time exceeding the server's idle timeout + * + * @return void + */ + public function reconnect() + { + if (cubrid_ping($this->conn_id) === FALSE) + { + $this->conn_id = FALSE; + } + } + + // -------------------------------------------------------------------- + + /** + * Database version number + * + * @return string + */ + public function version() + { + if (isset($this->data_cache['version'])) + { + return $this->data_cache['version']; + } + + return ( ! $this->conn_id OR ($version = cubrid_get_server_info($this->conn_id)) === FALSE) + ? FALSE + : $this->data_cache['version'] = $version; + } + + // -------------------------------------------------------------------- + + /** + * Execute the query + * + * @param string $sql an SQL query + * @return resource + */ + protected function _execute($sql) + { + return cubrid_query($sql, $this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * Begin Transaction + * + * @return bool + */ + protected function _trans_begin() + { + if (($autocommit = cubrid_get_autocommit($this->conn_id)) === NULL) + { + return FALSE; + } + elseif ($autocommit === TRUE) + { + return cubrid_set_autocommit($this->conn_id, CUBRID_AUTOCOMMIT_FALSE); + } + + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Commit Transaction + * + * @return bool + */ + protected function _trans_commit() + { + if ( ! cubrid_commit($this->conn_id)) + { + return FALSE; + } + + if ($this->auto_commit && ! cubrid_get_autocommit($this->conn_id)) + { + return cubrid_set_autocommit($this->conn_id, CUBRID_AUTOCOMMIT_TRUE); + } + + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Rollback Transaction + * + * @return bool + */ + protected function _trans_rollback() + { + if ( ! cubrid_rollback($this->conn_id)) + { + return FALSE; + } + + if ($this->auto_commit && ! cubrid_get_autocommit($this->conn_id)) + { + cubrid_set_autocommit($this->conn_id, CUBRID_AUTOCOMMIT_TRUE); + } + + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Platform-dependent string escape + * + * @param string + * @return string + */ + protected function _escape_str($str) + { + return cubrid_real_escape_string($str, $this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * Affected Rows + * + * @return int + */ + public function affected_rows() + { + return cubrid_affected_rows(); + } + + // -------------------------------------------------------------------- + + /** + * Insert ID + * + * @return int + */ + public function insert_id() + { + return cubrid_insert_id($this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * List table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SHOW TABLES'; + + if ($prefix_limit !== FALSE && $this->dbprefix !== '') + { + return $sql." LIKE '".$this->escape_like_str($this->dbprefix)."%'"; + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + return 'SHOW COLUMNS FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + if (($query = $this->query('SHOW COLUMNS FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE))) === FALSE) + { + return FALSE; + } + $query = $query->result_object(); + + $retval = array(); + for ($i = 0, $c = count($query); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $query[$i]->Field; + + sscanf($query[$i]->Type, '%[a-z](%d)', + $retval[$i]->type, + $retval[$i]->max_length + ); + + $retval[$i]->default = $query[$i]->Default; + $retval[$i]->primary_key = (int) ($query[$i]->Key === 'PRI'); + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Error + * + * Returns an array containing code and message of the last + * database error that has occurred. + * + * @return array + */ + public function error() + { + return array('code' => cubrid_errno($this->conn_id), 'message' => cubrid_error($this->conn_id)); + } + + // -------------------------------------------------------------------- + + /** + * FROM tables + * + * Groups tables in FROM clauses if needed, so there is no confusion + * about operator precedence. + * + * @return string + */ + protected function _from_tables() + { + if ( ! empty($this->qb_join) && count($this->qb_from) > 1) + { + return '('.implode(', ', $this->qb_from).')'; + } + + return implode(', ', $this->qb_from); + } + + // -------------------------------------------------------------------- + + /** + * Close DB Connection + * + * @return void + */ + protected function _close() + { + cubrid_close($this->conn_id); + } + +} diff --git a/ci/system/database/drivers/cubrid/cubrid_forge.php b/ci/system/database/drivers/cubrid/cubrid_forge.php new file mode 100644 index 0000000..e8e201f --- /dev/null +++ b/ci/system/database/drivers/cubrid/cubrid_forge.php @@ -0,0 +1,231 @@ + 'INTEGER', + 'SMALLINT' => 'INTEGER', + 'INT' => 'BIGINT', + 'INTEGER' => 'BIGINT', + 'BIGINT' => 'NUMERIC', + 'FLOAT' => 'DOUBLE', + 'REAL' => 'DOUBLE' + ); + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if (in_array($alter_type, array('DROP', 'ADD'), TRUE)) + { + return parent::_alter_table($alter_type, $table, $field); + } + + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table); + $sqls = array(); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + if ($field[$i]['_literal'] !== FALSE) + { + $sqls[] = $sql.' CHANGE '.$field[$i]['_literal']; + } + else + { + $alter_type = empty($field[$i]['new_name']) ? ' MODIFY ' : ' CHANGE '; + $sqls[] = $sql.$alter_type.$this->_process_column($field[$i]); + } + } + + return $sqls; + } + + // -------------------------------------------------------------------- + + /** + * Process column + * + * @param array $field + * @return string + */ + protected function _process_column($field) + { + $extra_clause = isset($field['after']) + ? ' AFTER '.$this->db->escape_identifiers($field['after']) : ''; + + if (empty($extra_clause) && isset($field['first']) && $field['first'] === TRUE) + { + $extra_clause = ' FIRST'; + } + + return $this->db->escape_identifiers($field['name']) + .(empty($field['new_name']) ? '' : ' '.$this->db->escape_identifiers($field['new_name'])) + .' '.$field['type'].$field['length'] + .$field['unsigned'] + .$field['null'] + .$field['default'] + .$field['auto_increment'] + .$field['unique'] + .$extra_clause; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'TINYINT': + $attributes['TYPE'] = 'SMALLINT'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'LONGTEXT': + $attributes['TYPE'] = 'STRING'; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Process indexes + * + * @param string $table (ignored) + * @return string + */ + protected function _process_indexes($table) + { + $sql = ''; + + for ($i = 0, $c = count($this->keys); $i < $c; $i++) + { + if (is_array($this->keys[$i])) + { + for ($i2 = 0, $c2 = count($this->keys[$i]); $i2 < $c2; $i2++) + { + if ( ! isset($this->fields[$this->keys[$i][$i2]])) + { + unset($this->keys[$i][$i2]); + continue; + } + } + } + elseif ( ! isset($this->fields[$this->keys[$i]])) + { + unset($this->keys[$i]); + continue; + } + + is_array($this->keys[$i]) OR $this->keys[$i] = array($this->keys[$i]); + + $sql .= ",\n\tKEY ".$this->db->escape_identifiers(implode('_', $this->keys[$i])) + .' ('.implode(', ', $this->db->escape_identifiers($this->keys[$i])).')'; + } + + $this->keys = array(); + + return $sql; + } + +} diff --git a/ci/system/database/drivers/cubrid/cubrid_result.php b/ci/system/database/drivers/cubrid/cubrid_result.php new file mode 100644 index 0000000..274b0c9 --- /dev/null +++ b/ci/system/database/drivers/cubrid/cubrid_result.php @@ -0,0 +1,178 @@ +num_rows) + ? $this->num_rows + : $this->num_rows = cubrid_num_rows($this->result_id); + } + + // -------------------------------------------------------------------- + + /** + * Number of fields in the result set + * + * @return int + */ + public function num_fields() + { + return cubrid_num_fields($this->result_id); + } + + // -------------------------------------------------------------------- + + /** + * Fetch Field Names + * + * Generates an array of column names + * + * @return array + */ + public function list_fields() + { + return cubrid_column_names($this->result_id); + } + + // -------------------------------------------------------------------- + + /** + * Field data + * + * Generates an array of objects containing field meta-data + * + * @return array + */ + public function field_data() + { + $retval = array(); + + for ($i = 0, $c = $this->num_fields(); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = cubrid_field_name($this->result_id, $i); + $retval[$i]->type = cubrid_field_type($this->result_id, $i); + $retval[$i]->max_length = cubrid_field_len($this->result_id, $i); + $retval[$i]->primary_key = (int) (strpos(cubrid_field_flags($this->result_id, $i), 'primary_key') !== FALSE); + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Free the result + * + * @return void + */ + public function free_result() + { + if (is_resource($this->result_id) OR + (get_resource_type($this->result_id) === 'Unknown' && preg_match('/Resource id #/', strval($this->result_id)))) + { + cubrid_close_request($this->result_id); + $this->result_id = FALSE; + } + } + + // -------------------------------------------------------------------- + + /** + * Data Seek + * + * Moves the internal pointer to the desired offset. We call + * this internally before fetching results to make sure the + * result set starts at zero. + * + * @param int $n + * @return bool + */ + public function data_seek($n = 0) + { + return cubrid_data_seek($this->result_id, $n); + } + + // -------------------------------------------------------------------- + + /** + * Result - associative array + * + * Returns the result set as an array + * + * @return array + */ + protected function _fetch_assoc() + { + return cubrid_fetch_assoc($this->result_id); + } + + // -------------------------------------------------------------------- + + /** + * Result - object + * + * Returns the result set as an object + * + * @param string $class_name + * @return object + */ + protected function _fetch_object($class_name = 'stdClass') + { + return cubrid_fetch_object($this->result_id, $class_name); + } + +} diff --git a/ci/system/database/drivers/cubrid/cubrid_utility.php b/ci/system/database/drivers/cubrid/cubrid_utility.php new file mode 100644 index 0000000..ca81568 --- /dev/null +++ b/ci/system/database/drivers/cubrid/cubrid_utility.php @@ -0,0 +1,80 @@ +db->data_cache['db_names'])) + { + return $this->db->data_cache['db_names']; + } + + return $this->db->data_cache['db_names'] = cubrid_list_dbs($this->db->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * CUBRID Export + * + * @param array Preferences + * @return mixed + */ + protected function _backup($params = array()) + { + // No SQL based support in CUBRID as of version 8.4.0. Database or + // table backup can be performed using CUBRID Manager + // database administration tool. + return $this->db->display_error('db_unsupported_feature'); + } +} diff --git a/ci/system/database/drivers/cubrid/index.html b/ci/system/database/drivers/cubrid/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/system/database/drivers/cubrid/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/system/database/drivers/ibase/ibase_driver.php b/ci/system/database/drivers/ibase/ibase_driver.php new file mode 100644 index 0000000..433139f --- /dev/null +++ b/ci/system/database/drivers/ibase/ibase_driver.php @@ -0,0 +1,414 @@ +hostname.':'.$this->database, $this->username, $this->password, $this->char_set) + : ibase_connect($this->hostname.':'.$this->database, $this->username, $this->password, $this->char_set); + } + + // -------------------------------------------------------------------- + + /** + * Database version number + * + * @return string + */ + public function version() + { + if (isset($this->data_cache['version'])) + { + return $this->data_cache['version']; + } + + if (($service = ibase_service_attach($this->hostname, $this->username, $this->password))) + { + $this->data_cache['version'] = ibase_server_info($service, IBASE_SVC_SERVER_VERSION); + + // Don't keep the service open + ibase_service_detach($service); + return $this->data_cache['version']; + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Execute the query + * + * @param string $sql an SQL query + * @return resource + */ + protected function _execute($sql) + { + return ibase_query(isset($this->_ibase_trans) ? $this->_ibase_trans : $this->conn_id, $sql); + } + + // -------------------------------------------------------------------- + + /** + * Begin Transaction + * + * @return bool + */ + protected function _trans_begin() + { + if (($trans_handle = ibase_trans($this->conn_id)) === FALSE) + { + return FALSE; + } + + $this->_ibase_trans = $trans_handle; + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Commit Transaction + * + * @return bool + */ + protected function _trans_commit() + { + if (ibase_commit($this->_ibase_trans)) + { + $this->_ibase_trans = NULL; + return TRUE; + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Rollback Transaction + * + * @return bool + */ + protected function _trans_rollback() + { + if (ibase_rollback($this->_ibase_trans)) + { + $this->_ibase_trans = NULL; + return TRUE; + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Affected Rows + * + * @return int + */ + public function affected_rows() + { + return ibase_affected_rows($this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * Insert ID + * + * @param string $generator_name + * @param int $inc_by + * @return int + */ + public function insert_id($generator_name, $inc_by = 0) + { + //If a generator hasn't been used before it will return 0 + return ibase_gen_id('"'.$generator_name.'"', $inc_by); + } + + // -------------------------------------------------------------------- + + /** + * List table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SELECT TRIM("RDB$RELATION_NAME") AS TABLE_NAME FROM "RDB$RELATIONS" WHERE "RDB$RELATION_NAME" NOT LIKE \'RDB$%\' AND "RDB$RELATION_NAME" NOT LIKE \'MON$%\''; + + if ($prefix_limit !== FALSE && $this->dbprefix !== '') + { + return $sql.' AND TRIM("RDB$RELATION_NAME") AS TABLE_NAME LIKE \''.$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + return 'SELECT TRIM("RDB$FIELD_NAME") AS COLUMN_NAME FROM "RDB$RELATION_FIELDS" WHERE "RDB$RELATION_NAME" = '.$this->escape($table); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + $sql = 'SELECT "rfields"."RDB$FIELD_NAME" AS "name", + CASE "fields"."RDB$FIELD_TYPE" + WHEN 7 THEN \'SMALLINT\' + WHEN 8 THEN \'INTEGER\' + WHEN 9 THEN \'QUAD\' + WHEN 10 THEN \'FLOAT\' + WHEN 11 THEN \'DFLOAT\' + WHEN 12 THEN \'DATE\' + WHEN 13 THEN \'TIME\' + WHEN 14 THEN \'CHAR\' + WHEN 16 THEN \'INT64\' + WHEN 27 THEN \'DOUBLE\' + WHEN 35 THEN \'TIMESTAMP\' + WHEN 37 THEN \'VARCHAR\' + WHEN 40 THEN \'CSTRING\' + WHEN 261 THEN \'BLOB\' + ELSE NULL + END AS "type", + "fields"."RDB$FIELD_LENGTH" AS "max_length", + "rfields"."RDB$DEFAULT_VALUE" AS "default" + FROM "RDB$RELATION_FIELDS" "rfields" + JOIN "RDB$FIELDS" "fields" ON "rfields"."RDB$FIELD_SOURCE" = "fields"."RDB$FIELD_NAME" + WHERE "rfields"."RDB$RELATION_NAME" = '.$this->escape($table).' + ORDER BY "rfields"."RDB$FIELD_POSITION"'; + + return (($query = $this->query($sql)) !== FALSE) + ? $query->result_object() + : FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Error + * + * Returns an array containing code and message of the last + * database error that has occurred. + * + * @return array + */ + public function error() + { + return array('code' => ibase_errcode(), 'message' => ibase_errmsg()); + } + + // -------------------------------------------------------------------- + + /** + * Update statement + * + * Generates a platform-specific update string from the supplied data + * + * @param string $table + * @param array $values + * @return string + */ + protected function _update($table, $values) + { + $this->qb_limit = FALSE; + return parent::_update($table, $values); + } + + // -------------------------------------------------------------------- + + /** + * Truncate statement + * + * Generates a platform-specific truncate string from the supplied data + * + * If the database does not support the TRUNCATE statement, + * then this method maps to 'DELETE FROM table' + * + * @param string $table + * @return string + */ + protected function _truncate($table) + { + return 'DELETE FROM '.$table; + } + + // -------------------------------------------------------------------- + + /** + * Delete statement + * + * Generates a platform-specific delete string from the supplied data + * + * @param string $table + * @return string + */ + protected function _delete($table) + { + $this->qb_limit = FALSE; + return parent::_delete($table); + } + + // -------------------------------------------------------------------- + + /** + * LIMIT + * + * Generates a platform-specific LIMIT clause + * + * @param string $sql SQL Query + * @return string + */ + protected function _limit($sql) + { + // Limit clause depends on if Interbase or Firebird + if (stripos($this->version(), 'firebird') !== FALSE) + { + $select = 'FIRST '.$this->qb_limit + .($this->qb_offset ? ' SKIP '.$this->qb_offset : ''); + } + else + { + $select = 'ROWS ' + .($this->qb_offset ? $this->qb_offset.' TO '.($this->qb_limit + $this->qb_offset) : $this->qb_limit); + } + + return preg_replace('`SELECT`i', 'SELECT '.$select, $sql, 1); + } + + // -------------------------------------------------------------------- + + /** + * Insert batch statement + * + * Generates a platform-specific insert string from the supplied data. + * + * @param string $table Table name + * @param array $keys INSERT keys + * @param array $values INSERT values + * @return string|bool + */ + protected function _insert_batch($table, $keys, $values) + { + return ($this->db_debug) ? $this->display_error('db_unsupported_feature') : FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Close DB Connection + * + * @return void + */ + protected function _close() + { + ibase_close($this->conn_id); + } + +} diff --git a/ci/system/database/drivers/ibase/ibase_forge.php b/ci/system/database/drivers/ibase/ibase_forge.php new file mode 100644 index 0000000..2c385f1 --- /dev/null +++ b/ci/system/database/drivers/ibase/ibase_forge.php @@ -0,0 +1,252 @@ + 'INTEGER', + 'INTEGER' => 'INT64', + 'FLOAT' => 'DOUBLE PRECISION' + ); + + /** + * NULL value representation in CREATE/ALTER TABLE statements + * + * @var string + */ + protected $_null = 'NULL'; + + // -------------------------------------------------------------------- + + /** + * Create database + * + * @param string $db_name + * @return bool + */ + public function create_database($db_name) + { + // Firebird databases are flat files, so a path is required + + // Hostname is needed for remote access + empty($this->db->hostname) OR $db_name = $this->hostname.':'.$db_name; + + return parent::create_database('"'.$db_name.'"'); + } + + // -------------------------------------------------------------------- + + /** + * Drop database + * + * @param string $db_name (ignored) + * @return bool + */ + public function drop_database($db_name) + { + if ( ! ibase_drop_db($this->conn_id)) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unable_to_drop') : FALSE; + } + elseif ( ! empty($this->db->data_cache['db_names'])) + { + $key = array_search(strtolower($this->db->database), array_map('strtolower', $this->db->data_cache['db_names']), TRUE); + if ($key !== FALSE) + { + unset($this->db->data_cache['db_names'][$key]); + } + } + + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if (in_array($alter_type, array('DROP', 'ADD'), TRUE)) + { + return parent::_alter_table($alter_type, $table, $field); + } + + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table); + $sqls = array(); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + if ($field[$i]['_literal'] !== FALSE) + { + return FALSE; + } + + if (isset($field[$i]['type'])) + { + $sqls[] = $sql.' ALTER COLUMN '.$this->db->escape_identififers($field[$i]['name']) + .' TYPE '.$field[$i]['type'].$field[$i]['length']; + } + + if ( ! empty($field[$i]['default'])) + { + $sqls[] = $sql.' ALTER COLUMN '.$this->db->escape_identifiers($field[$i]['name']) + .' SET DEFAULT '.$field[$i]['default']; + } + + if (isset($field[$i]['null'])) + { + $sqls[] = 'UPDATE "RDB$RELATION_FIELDS" SET "RDB$NULL_FLAG" = ' + .($field[$i]['null'] === TRUE ? 'NULL' : '1') + .' WHERE "RDB$FIELD_NAME" = '.$this->db->escape($field[$i]['name']) + .' AND "RDB$RELATION_NAME" = '.$this->db->escape($table); + } + + if ( ! empty($field[$i]['new_name'])) + { + $sqls[] = $sql.' ALTER COLUMN '.$this->db->escape_identifiers($field[$i]['name']) + .' TO '.$this->db->escape_identifiers($field[$i]['new_name']); + } + } + + return $sqls; + } + + // -------------------------------------------------------------------- + + /** + * Process column + * + * @param array $field + * @return string + */ + protected function _process_column($field) + { + return $this->db->escape_identifiers($field['name']) + .' '.$field['type'].$field['length'] + .$field['null'] + .$field['unique'] + .$field['default']; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'TINYINT': + $attributes['TYPE'] = 'SMALLINT'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'INT': + $attributes['TYPE'] = 'INTEGER'; + return; + case 'BIGINT': + $attributes['TYPE'] = 'INT64'; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + // Not supported + } + +} diff --git a/ci/system/database/drivers/ibase/ibase_result.php b/ci/system/database/drivers/ibase/ibase_result.php new file mode 100644 index 0000000..900212e --- /dev/null +++ b/ci/system/database/drivers/ibase/ibase_result.php @@ -0,0 +1,162 @@ +result_id); + } + + // -------------------------------------------------------------------- + + /** + * Fetch Field Names + * + * Generates an array of column names + * + * @return array + */ + public function list_fields() + { + $field_names = array(); + for ($i = 0, $num_fields = $this->num_fields(); $i < $num_fields; $i++) + { + $info = ibase_field_info($this->result_id, $i); + $field_names[] = $info['name']; + } + + return $field_names; + } + + // -------------------------------------------------------------------- + + /** + * Field data + * + * Generates an array of objects containing field meta-data + * + * @return array + */ + public function field_data() + { + $retval = array(); + for ($i = 0, $c = $this->num_fields(); $i < $c; $i++) + { + $info = ibase_field_info($this->result_id, $i); + + $retval[$i] = new stdClass(); + $retval[$i]->name = $info['name']; + $retval[$i]->type = $info['type']; + $retval[$i]->max_length = $info['length']; + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Free the result + * + * @return void + */ + public function free_result() + { + ibase_free_result($this->result_id); + } + + // -------------------------------------------------------------------- + + /** + * Result - associative array + * + * Returns the result set as an array + * + * @return array + */ + protected function _fetch_assoc() + { + return ibase_fetch_assoc($this->result_id, IBASE_FETCH_BLOBS); + } + + // -------------------------------------------------------------------- + + /** + * Result - object + * + * Returns the result set as an object + * + * @param string $class_name + * @return object + */ + protected function _fetch_object($class_name = 'stdClass') + { + $row = ibase_fetch_object($this->result_id, IBASE_FETCH_BLOBS); + + if ($class_name === 'stdClass' OR ! $row) + { + return $row; + } + + $class_name = new $class_name(); + foreach ($row as $key => $value) + { + $class_name->$key = $value; + } + + return $class_name; + } + +} diff --git a/ci/system/database/drivers/ibase/ibase_utility.php b/ci/system/database/drivers/ibase/ibase_utility.php new file mode 100644 index 0000000..bc87508 --- /dev/null +++ b/ci/system/database/drivers/ibase/ibase_utility.php @@ -0,0 +1,70 @@ +db->hostname, $this->db->username, $this->db->password)) + { + $res = ibase_backup($service, $this->db->database, $filename.'.fbk'); + + // Close the service connection + ibase_service_detach($service); + return $res; + } + + return FALSE; + } + +} diff --git a/ci/system/database/drivers/ibase/index.html b/ci/system/database/drivers/ibase/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/system/database/drivers/ibase/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/system/database/drivers/index.html b/ci/system/database/drivers/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/system/database/drivers/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/system/database/drivers/mssql/index.html b/ci/system/database/drivers/mssql/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/system/database/drivers/mssql/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/system/database/drivers/mssql/mssql_driver.php b/ci/system/database/drivers/mssql/mssql_driver.php new file mode 100644 index 0000000..5012640 --- /dev/null +++ b/ci/system/database/drivers/mssql/mssql_driver.php @@ -0,0 +1,519 @@ +port)) + { + $this->hostname .= (DIRECTORY_SEPARATOR === '\\' ? ',' : ':').$this->port; + } + } + + // -------------------------------------------------------------------- + + /** + * Non-persistent database connection + * + * @param bool $persistent + * @return resource + */ + public function db_connect($persistent = FALSE) + { + $this->conn_id = ($persistent) + ? mssql_pconnect($this->hostname, $this->username, $this->password) + : mssql_connect($this->hostname, $this->username, $this->password); + + if ( ! $this->conn_id) + { + return FALSE; + } + + // ---------------------------------------------------------------- + + // Select the DB... assuming a database name is specified in the config file + if ($this->database !== '' && ! $this->db_select()) + { + log_message('error', 'Unable to select database: '.$this->database); + + return ($this->db_debug === TRUE) + ? $this->display_error('db_unable_to_select', $this->database) + : FALSE; + } + + // Determine how identifiers are escaped + $query = $this->query('SELECT CASE WHEN (@@OPTIONS | 256) = @@OPTIONS THEN 1 ELSE 0 END AS qi'); + $query = $query->row_array(); + $this->_quoted_identifier = empty($query) ? FALSE : (bool) $query['qi']; + $this->_escape_char = ($this->_quoted_identifier) ? '"' : array('[', ']'); + + return $this->conn_id; + } + + // -------------------------------------------------------------------- + + /** + * Select the database + * + * @param string $database + * @return bool + */ + public function db_select($database = '') + { + if ($database === '') + { + $database = $this->database; + } + + // Note: Escaping is required in the event that the DB name + // contains reserved characters. + if (mssql_select_db('['.$database.']', $this->conn_id)) + { + $this->database = $database; + $this->data_cache = array(); + return TRUE; + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Execute the query + * + * @param string $sql an SQL query + * @return mixed resource if rows are returned, bool otherwise + */ + protected function _execute($sql) + { + return mssql_query($sql, $this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * Begin Transaction + * + * @return bool + */ + protected function _trans_begin() + { + return $this->simple_query('BEGIN TRAN'); + } + + // -------------------------------------------------------------------- + + /** + * Commit Transaction + * + * @return bool + */ + protected function _trans_commit() + { + return $this->simple_query('COMMIT TRAN'); + } + + // -------------------------------------------------------------------- + + /** + * Rollback Transaction + * + * @return bool + */ + protected function _trans_rollback() + { + return $this->simple_query('ROLLBACK TRAN'); + } + + // -------------------------------------------------------------------- + + /** + * Affected Rows + * + * @return int + */ + public function affected_rows() + { + return mssql_rows_affected($this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * Insert ID + * + * Returns the last id created in the Identity column. + * + * @return string + */ + public function insert_id() + { + $query = version_compare($this->version(), '8', '>=') + ? 'SELECT SCOPE_IDENTITY() AS last_id' + : 'SELECT @@IDENTITY AS last_id'; + + $query = $this->query($query); + $query = $query->row(); + return $query->last_id; + } + + // -------------------------------------------------------------------- + + /** + * Set client character set + * + * @param string $charset + * @return bool + */ + protected function _db_set_charset($charset) + { + return (ini_set('mssql.charset', $charset) !== FALSE); + } + + // -------------------------------------------------------------------- + + /** + * Version number query string + * + * @return string + */ + protected function _version() + { + return "SELECT SERVERPROPERTY('ProductVersion') AS ver"; + } + + // -------------------------------------------------------------------- + + /** + * List table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SELECT '.$this->escape_identifiers('name') + .' FROM '.$this->escape_identifiers('sysobjects') + .' WHERE '.$this->escape_identifiers('type')." = 'U'"; + + if ($prefix_limit !== FALSE && $this->dbprefix !== '') + { + $sql .= ' AND '.$this->escape_identifiers('name')." LIKE '".$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + return $sql.' ORDER BY '.$this->escape_identifiers('name'); + } + + // -------------------------------------------------------------------- + + /** + * List column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + return 'SELECT COLUMN_NAME + FROM INFORMATION_SCHEMA.Columns + WHERE UPPER(TABLE_NAME) = '.$this->escape(strtoupper($table)); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + $sql = 'SELECT COLUMN_NAME, DATA_TYPE, CHARACTER_MAXIMUM_LENGTH, NUMERIC_PRECISION, COLUMN_DEFAULT + FROM INFORMATION_SCHEMA.Columns + WHERE UPPER(TABLE_NAME) = '.$this->escape(strtoupper($table)); + + if (($query = $this->query($sql)) === FALSE) + { + return FALSE; + } + $query = $query->result_object(); + + $retval = array(); + for ($i = 0, $c = count($query); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $query[$i]->COLUMN_NAME; + $retval[$i]->type = $query[$i]->DATA_TYPE; + $retval[$i]->max_length = ($query[$i]->CHARACTER_MAXIMUM_LENGTH > 0) ? $query[$i]->CHARACTER_MAXIMUM_LENGTH : $query[$i]->NUMERIC_PRECISION; + $retval[$i]->default = $query[$i]->COLUMN_DEFAULT; + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Error + * + * Returns an array containing code and message of the last + * database error that has occurred. + * + * @return array + */ + public function error() + { + // We need this because the error info is discarded by the + // server the first time you request it, and query() already + // calls error() once for logging purposes when a query fails. + static $error = array('code' => 0, 'message' => NULL); + + $message = mssql_get_last_message(); + if ( ! empty($message)) + { + $error['code'] = $this->query('SELECT @@ERROR AS code')->row()->code; + $error['message'] = $message; + } + + return $error; + } + + // -------------------------------------------------------------------- + + /** + * Update statement + * + * Generates a platform-specific update string from the supplied data + * + * @param string $table + * @param array $values + * @return string + */ + protected function _update($table, $values) + { + $this->qb_limit = FALSE; + $this->qb_orderby = array(); + return parent::_update($table, $values); + } + + // -------------------------------------------------------------------- + + /** + * Truncate statement + * + * Generates a platform-specific truncate string from the supplied data + * + * If the database does not support the TRUNCATE statement, + * then this method maps to 'DELETE FROM table' + * + * @param string $table + * @return string + */ + protected function _truncate($table) + { + return 'TRUNCATE TABLE '.$table; + } + + // -------------------------------------------------------------------- + + /** + * Delete statement + * + * Generates a platform-specific delete string from the supplied data + * + * @param string $table + * @return string + */ + protected function _delete($table) + { + if ($this->qb_limit) + { + return 'WITH ci_delete AS (SELECT TOP '.$this->qb_limit.' * FROM '.$table.$this->_compile_wh('qb_where').') DELETE FROM ci_delete'; + } + + return parent::_delete($table); + } + + // -------------------------------------------------------------------- + + /** + * LIMIT + * + * Generates a platform-specific LIMIT clause + * + * @param string $sql SQL Query + * @return string + */ + protected function _limit($sql) + { + $limit = $this->qb_offset + $this->qb_limit; + + // As of SQL Server 2005 (9.0.*) ROW_NUMBER() is supported, + // however an ORDER BY clause is required for it to work + if (version_compare($this->version(), '9', '>=') && $this->qb_offset && ! empty($this->qb_orderby)) + { + $orderby = $this->_compile_order_by(); + + // We have to strip the ORDER BY clause + $sql = trim(substr($sql, 0, strrpos($sql, $orderby))); + + // Get the fields to select from our subquery, so that we can avoid CI_rownum appearing in the actual results + if (count($this->qb_select) === 0 OR strpos(implode(',', $this->qb_select), '*') !== FALSE) + { + $select = '*'; // Inevitable + } + else + { + // Use only field names and their aliases, everything else is out of our scope. + $select = array(); + $field_regexp = ($this->_quoted_identifier) + ? '("[^\"]+")' : '(\[[^\]]+\])'; + for ($i = 0, $c = count($this->qb_select); $i < $c; $i++) + { + $select[] = preg_match('/(?:\s|\.)'.$field_regexp.'$/i', $this->qb_select[$i], $m) + ? $m[1] : $this->qb_select[$i]; + } + $select = implode(', ', $select); + } + + return 'SELECT '.$select." FROM (\n\n" + .preg_replace('/^(SELECT( DISTINCT)?)/i', '\\1 ROW_NUMBER() OVER('.trim($orderby).') AS '.$this->escape_identifiers('CI_rownum').', ', $sql) + ."\n\n) ".$this->escape_identifiers('CI_subquery') + ."\nWHERE ".$this->escape_identifiers('CI_rownum').' BETWEEN '.($this->qb_offset + 1).' AND '.$limit; + } + + return preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.$limit.' ', $sql); + } + + // -------------------------------------------------------------------- + + /** + * Insert batch statement + * + * Generates a platform-specific insert string from the supplied data. + * + * @param string $table Table name + * @param array $keys INSERT keys + * @param array $values INSERT values + * @return string|bool + */ + protected function _insert_batch($table, $keys, $values) + { + // Multiple-value inserts are only supported as of SQL Server 2008 + if (version_compare($this->version(), '10', '>=')) + { + return parent::_insert_batch($table, $keys, $values); + } + + return ($this->db_debug) ? $this->display_error('db_unsupported_feature') : FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Close DB Connection + * + * @return void + */ + protected function _close() + { + mssql_close($this->conn_id); + } + +} diff --git a/ci/system/database/drivers/mssql/mssql_forge.php b/ci/system/database/drivers/mssql/mssql_forge.php new file mode 100644 index 0000000..f9dee91 --- /dev/null +++ b/ci/system/database/drivers/mssql/mssql_forge.php @@ -0,0 +1,152 @@ + 'SMALLINT', + 'SMALLINT' => 'INT', + 'INT' => 'BIGINT', + 'REAL' => 'FLOAT' + ); + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if (in_array($alter_type, array('ADD', 'DROP'), TRUE)) + { + return parent::_alter_table($alter_type, $table, $field); + } + + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table).' ALTER COLUMN '; + $sqls = array(); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + $sqls[] = $sql.$this->_process_column($field[$i]); + } + + return $sqls; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + if (isset($attributes['CONSTRAINT']) && strpos($attributes['TYPE'], 'INT') !== FALSE) + { + unset($attributes['CONSTRAINT']); + } + + switch (strtoupper($attributes['TYPE'])) + { + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'INTEGER': + $attributes['TYPE'] = 'INT'; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE && stripos($field['type'], 'int') !== FALSE) + { + $field['auto_increment'] = ' IDENTITY(1,1)'; + } + } + +} diff --git a/ci/system/database/drivers/mssql/mssql_result.php b/ci/system/database/drivers/mssql/mssql_result.php new file mode 100644 index 0000000..fbe2eb1 --- /dev/null +++ b/ci/system/database/drivers/mssql/mssql_result.php @@ -0,0 +1,199 @@ +num_rows) + ? $this->num_rows + : $this->num_rows = mssql_num_rows($this->result_id); + } + + // -------------------------------------------------------------------- + + /** + * Number of fields in the result set + * + * @return int + */ + public function num_fields() + { + return mssql_num_fields($this->result_id); + } + + // -------------------------------------------------------------------- + + /** + * Fetch Field Names + * + * Generates an array of column names + * + * @return array + */ + public function list_fields() + { + $field_names = array(); + mssql_field_seek($this->result_id, 0); + while ($field = mssql_fetch_field($this->result_id)) + { + $field_names[] = $field->name; + } + + return $field_names; + } + + // -------------------------------------------------------------------- + + /** + * Field data + * + * Generates an array of objects containing field meta-data + * + * @return array + */ + public function field_data() + { + $retval = array(); + for ($i = 0, $c = $this->num_fields(); $i < $c; $i++) + { + $field = mssql_fetch_field($this->result_id, $i); + + $retval[$i] = new stdClass(); + $retval[$i]->name = $field->name; + $retval[$i]->type = $field->type; + $retval[$i]->max_length = $field->max_length; + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Free the result + * + * @return void + */ + public function free_result() + { + if (is_resource($this->result_id)) + { + mssql_free_result($this->result_id); + $this->result_id = FALSE; + } + } + + // -------------------------------------------------------------------- + + /** + * Data Seek + * + * Moves the internal pointer to the desired offset. We call + * this internally before fetching results to make sure the + * result set starts at zero. + * + * @param int $n + * @return bool + */ + public function data_seek($n = 0) + { + return mssql_data_seek($this->result_id, $n); + } + + // -------------------------------------------------------------------- + + /** + * Result - associative array + * + * Returns the result set as an array + * + * @return array + */ + protected function _fetch_assoc() + { + return mssql_fetch_assoc($this->result_id); + } + + // -------------------------------------------------------------------- + + /** + * Result - object + * + * Returns the result set as an object + * + * @param string $class_name + * @return object + */ + protected function _fetch_object($class_name = 'stdClass') + { + $row = mssql_fetch_object($this->result_id); + + if ($class_name === 'stdClass' OR ! $row) + { + return $row; + } + + $class_name = new $class_name(); + foreach ($row as $key => $value) + { + $class_name->$key = $value; + } + + return $class_name; + } + +} diff --git a/ci/system/database/drivers/mssql/mssql_utility.php b/ci/system/database/drivers/mssql/mssql_utility.php new file mode 100644 index 0000000..a739dc8 --- /dev/null +++ b/ci/system/database/drivers/mssql/mssql_utility.php @@ -0,0 +1,78 @@ +db->display_error('db_unsupported_feature'); + } + +} diff --git a/ci/system/database/drivers/mysql/index.html b/ci/system/database/drivers/mysql/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/system/database/drivers/mysql/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/system/database/drivers/mysql/mysql_driver.php b/ci/system/database/drivers/mysql/mysql_driver.php new file mode 100644 index 0000000..367f89a --- /dev/null +++ b/ci/system/database/drivers/mysql/mysql_driver.php @@ -0,0 +1,495 @@ +port)) + { + $this->hostname .= ':'.$this->port; + } + } + + // -------------------------------------------------------------------- + + /** + * Non-persistent database connection + * + * @param bool $persistent + * @return resource + */ + public function db_connect($persistent = FALSE) + { + $client_flags = ($this->compress === FALSE) ? 0 : MYSQL_CLIENT_COMPRESS; + + if ($this->encrypt === TRUE) + { + $client_flags = $client_flags | MYSQL_CLIENT_SSL; + } + + // Error suppression is necessary mostly due to PHP 5.5+ issuing E_DEPRECATED messages + $this->conn_id = ($persistent === TRUE) + ? mysql_pconnect($this->hostname, $this->username, $this->password, $client_flags) + : mysql_connect($this->hostname, $this->username, $this->password, TRUE, $client_flags); + + // ---------------------------------------------------------------- + + // Select the DB... assuming a database name is specified in the config file + if ($this->database !== '' && ! $this->db_select()) + { + log_message('error', 'Unable to select database: '.$this->database); + + return ($this->db_debug === TRUE) + ? $this->display_error('db_unable_to_select', $this->database) + : FALSE; + } + + if (isset($this->stricton) && is_resource($this->conn_id)) + { + if ($this->stricton) + { + $this->simple_query('SET SESSION sql_mode = CONCAT(@@sql_mode, ",", "STRICT_ALL_TABLES")'); + } + else + { + $this->simple_query( + 'SET SESSION sql_mode = + REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE( + @@sql_mode, + "STRICT_ALL_TABLES,", ""), + ",STRICT_ALL_TABLES", ""), + "STRICT_ALL_TABLES", ""), + "STRICT_TRANS_TABLES,", ""), + ",STRICT_TRANS_TABLES", ""), + "STRICT_TRANS_TABLES", "")' + ); + } + } + + return $this->conn_id; + } + + // -------------------------------------------------------------------- + + /** + * Reconnect + * + * Keep / reestablish the db connection if no queries have been + * sent for a length of time exceeding the server's idle timeout + * + * @return void + */ + public function reconnect() + { + if (mysql_ping($this->conn_id) === FALSE) + { + $this->conn_id = FALSE; + } + } + + // -------------------------------------------------------------------- + + /** + * Select the database + * + * @param string $database + * @return bool + */ + public function db_select($database = '') + { + if ($database === '') + { + $database = $this->database; + } + + if (mysql_select_db($database, $this->conn_id)) + { + $this->database = $database; + $this->data_cache = array(); + return TRUE; + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Set client character set + * + * @param string $charset + * @return bool + */ + protected function _db_set_charset($charset) + { + return mysql_set_charset($charset, $this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * Database version number + * + * @return string + */ + public function version() + { + if (isset($this->data_cache['version'])) + { + return $this->data_cache['version']; + } + + if ( ! $this->conn_id OR ($version = mysql_get_server_info($this->conn_id)) === FALSE) + { + return FALSE; + } + + return $this->data_cache['version'] = $version; + } + + // -------------------------------------------------------------------- + + /** + * Execute the query + * + * @param string $sql an SQL query + * @return mixed + */ + protected function _execute($sql) + { + return mysql_query($this->_prep_query($sql), $this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * Prep the query + * + * If needed, each database adapter can prep the query string + * + * @param string $sql an SQL query + * @return string + */ + protected function _prep_query($sql) + { + // mysql_affected_rows() returns 0 for "DELETE FROM TABLE" queries. This hack + // modifies the query so that it a proper number of affected rows is returned. + if ($this->delete_hack === TRUE && preg_match('/^\s*DELETE\s+FROM\s+(\S+)\s*$/i', $sql)) + { + return trim($sql).' WHERE 1=1'; + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Begin Transaction + * + * @return bool + */ + protected function _trans_begin() + { + $this->simple_query('SET AUTOCOMMIT=0'); + return $this->simple_query('START TRANSACTION'); // can also be BEGIN or BEGIN WORK + } + + // -------------------------------------------------------------------- + + /** + * Commit Transaction + * + * @return bool + */ + protected function _trans_commit() + { + if ($this->simple_query('COMMIT')) + { + $this->simple_query('SET AUTOCOMMIT=1'); + return TRUE; + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Rollback Transaction + * + * @return bool + */ + protected function _trans_rollback() + { + if ($this->simple_query('ROLLBACK')) + { + $this->simple_query('SET AUTOCOMMIT=1'); + return TRUE; + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Platform-dependent string escape + * + * @param string + * @return string + */ + protected function _escape_str($str) + { + return mysql_real_escape_string($str, $this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * Affected Rows + * + * @return int + */ + public function affected_rows() + { + return mysql_affected_rows($this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * Insert ID + * + * @return int + */ + public function insert_id() + { + return mysql_insert_id($this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * List table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SHOW TABLES FROM '.$this->_escape_char.$this->database.$this->_escape_char; + + if ($prefix_limit !== FALSE && $this->dbprefix !== '') + { + return $sql." LIKE '".$this->escape_like_str($this->dbprefix)."%'"; + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + return 'SHOW COLUMNS FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + if (($query = $this->query('SHOW COLUMNS FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE))) === FALSE) + { + return FALSE; + } + $query = $query->result_object(); + + $retval = array(); + for ($i = 0, $c = count($query); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $query[$i]->Field; + + sscanf($query[$i]->Type, '%[a-z](%d)', + $retval[$i]->type, + $retval[$i]->max_length + ); + + $retval[$i]->default = $query[$i]->Default; + $retval[$i]->primary_key = (int) ($query[$i]->Key === 'PRI'); + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Error + * + * Returns an array containing code and message of the last + * database error that has occurred. + * + * @return array + */ + public function error() + { + return array('code' => mysql_errno($this->conn_id), 'message' => mysql_error($this->conn_id)); + } + + // -------------------------------------------------------------------- + + /** + * FROM tables + * + * Groups tables in FROM clauses if needed, so there is no confusion + * about operator precedence. + * + * @return string + */ + protected function _from_tables() + { + if ( ! empty($this->qb_join) && count($this->qb_from) > 1) + { + return '('.implode(', ', $this->qb_from).')'; + } + + return implode(', ', $this->qb_from); + } + + // -------------------------------------------------------------------- + + /** + * Close DB Connection + * + * @return void + */ + protected function _close() + { + // Error suppression to avoid annoying E_WARNINGs in cases + // where the connection has already been closed for some reason. + @mysql_close($this->conn_id); + } + +} diff --git a/ci/system/database/drivers/mysql/mysql_forge.php b/ci/system/database/drivers/mysql/mysql_forge.php new file mode 100644 index 0000000..410ea2d --- /dev/null +++ b/ci/system/database/drivers/mysql/mysql_forge.php @@ -0,0 +1,243 @@ +db->char_set) && ! strpos($sql, 'CHARACTER SET') && ! strpos($sql, 'CHARSET')) + { + $sql .= ' DEFAULT CHARACTER SET = '.$this->db->char_set; + } + + if ( ! empty($this->db->dbcollat) && ! strpos($sql, 'COLLATE')) + { + $sql .= ' COLLATE = '.$this->db->dbcollat; + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if ($alter_type === 'DROP') + { + return parent::_alter_table($alter_type, $table, $field); + } + + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + if ($field[$i]['_literal'] !== FALSE) + { + $field[$i] = ($alter_type === 'ADD') + ? "\n\tADD ".$field[$i]['_literal'] + : "\n\tMODIFY ".$field[$i]['_literal']; + } + else + { + if ($alter_type === 'ADD') + { + $field[$i]['_literal'] = "\n\tADD "; + } + else + { + $field[$i]['_literal'] = empty($field[$i]['new_name']) ? "\n\tMODIFY " : "\n\tCHANGE "; + } + + $field[$i] = $field[$i]['_literal'].$this->_process_column($field[$i]); + } + } + + return array($sql.implode(',', $field)); + } + + // -------------------------------------------------------------------- + + /** + * Process column + * + * @param array $field + * @return string + */ + protected function _process_column($field) + { + $extra_clause = isset($field['after']) + ? ' AFTER '.$this->db->escape_identifiers($field['after']) : ''; + + if (empty($extra_clause) && isset($field['first']) && $field['first'] === TRUE) + { + $extra_clause = ' FIRST'; + } + + return $this->db->escape_identifiers($field['name']) + .(empty($field['new_name']) ? '' : ' '.$this->db->escape_identifiers($field['new_name'])) + .' '.$field['type'].$field['length'] + .$field['unsigned'] + .$field['null'] + .$field['default'] + .$field['auto_increment'] + .$field['unique'] + .(empty($field['comment']) ? '' : ' COMMENT '.$field['comment']) + .$extra_clause; + } + + // -------------------------------------------------------------------- + + /** + * Process indexes + * + * @param string $table (ignored) + * @return string + */ + protected function _process_indexes($table) + { + $sql = ''; + + for ($i = 0, $c = count($this->keys); $i < $c; $i++) + { + if (is_array($this->keys[$i])) + { + for ($i2 = 0, $c2 = count($this->keys[$i]); $i2 < $c2; $i2++) + { + if ( ! isset($this->fields[$this->keys[$i][$i2]])) + { + unset($this->keys[$i][$i2]); + continue; + } + } + } + elseif ( ! isset($this->fields[$this->keys[$i]])) + { + unset($this->keys[$i]); + continue; + } + + is_array($this->keys[$i]) OR $this->keys[$i] = array($this->keys[$i]); + + $sql .= ",\n\tKEY ".$this->db->escape_identifiers(implode('_', $this->keys[$i])) + .' ('.implode(', ', $this->db->escape_identifiers($this->keys[$i])).')'; + } + + $this->keys = array(); + + return $sql; + } + +} diff --git a/ci/system/database/drivers/mysql/mysql_result.php b/ci/system/database/drivers/mysql/mysql_result.php new file mode 100644 index 0000000..05fc36e --- /dev/null +++ b/ci/system/database/drivers/mysql/mysql_result.php @@ -0,0 +1,200 @@ +num_rows = mysql_num_rows($this->result_id); + } + + // -------------------------------------------------------------------- + + /** + * Number of rows in the result set + * + * @return int + */ + public function num_rows() + { + return $this->num_rows; + } + + // -------------------------------------------------------------------- + + /** + * Number of fields in the result set + * + * @return int + */ + public function num_fields() + { + return mysql_num_fields($this->result_id); + } + + // -------------------------------------------------------------------- + + /** + * Fetch Field Names + * + * Generates an array of column names + * + * @return array + */ + public function list_fields() + { + $field_names = array(); + mysql_field_seek($this->result_id, 0); + while ($field = mysql_fetch_field($this->result_id)) + { + $field_names[] = $field->name; + } + + return $field_names; + } + + // -------------------------------------------------------------------- + + /** + * Field data + * + * Generates an array of objects containing field meta-data + * + * @return array + */ + public function field_data() + { + $retval = array(); + for ($i = 0, $c = $this->num_fields(); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = mysql_field_name($this->result_id, $i); + $retval[$i]->type = mysql_field_type($this->result_id, $i); + $retval[$i]->max_length = mysql_field_len($this->result_id, $i); + $retval[$i]->primary_key = (int) (strpos(mysql_field_flags($this->result_id, $i), 'primary_key') !== FALSE); + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Free the result + * + * @return void + */ + public function free_result() + { + if (is_resource($this->result_id)) + { + mysql_free_result($this->result_id); + $this->result_id = FALSE; + } + } + + // -------------------------------------------------------------------- + + /** + * Data Seek + * + * Moves the internal pointer to the desired offset. We call + * this internally before fetching results to make sure the + * result set starts at zero. + * + * @param int $n + * @return bool + */ + public function data_seek($n = 0) + { + return $this->num_rows + ? mysql_data_seek($this->result_id, $n) + : FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Result - associative array + * + * Returns the result set as an array + * + * @return array + */ + protected function _fetch_assoc() + { + return mysql_fetch_assoc($this->result_id); + } + + // -------------------------------------------------------------------- + + /** + * Result - object + * + * Returns the result set as an object + * + * @param string $class_name + * @return object + */ + protected function _fetch_object($class_name = 'stdClass') + { + return mysql_fetch_object($this->result_id, $class_name); + } + +} diff --git a/ci/system/database/drivers/mysql/mysql_utility.php b/ci/system/database/drivers/mysql/mysql_utility.php new file mode 100644 index 0000000..0564a5a --- /dev/null +++ b/ci/system/database/drivers/mysql/mysql_utility.php @@ -0,0 +1,212 @@ +db->query('SHOW CREATE TABLE '.$this->db->escape_identifiers($this->db->database.'.'.$table)); + + // No result means the table name was invalid + if ($query === FALSE) + { + continue; + } + + // Write out the table schema + $output .= '#'.$newline.'# TABLE STRUCTURE FOR: '.$table.$newline.'#'.$newline.$newline; + + if ($add_drop === TRUE) + { + $output .= 'DROP TABLE IF EXISTS '.$this->db->protect_identifiers($table).';'.$newline.$newline; + } + + $i = 0; + $result = $query->result_array(); + foreach ($result[0] as $val) + { + if ($i++ % 2) + { + $output .= $val.';'.$newline.$newline; + } + } + + // If inserts are not needed we're done... + if ($add_insert === FALSE) + { + continue; + } + + // Grab all the data from the current table + $query = $this->db->query('SELECT * FROM '.$this->db->protect_identifiers($table)); + + if ($query->num_rows() === 0) + { + continue; + } + + // Fetch the field names and determine if the field is an + // integer type. We use this info to decide whether to + // surround the data with quotes or not + + $i = 0; + $field_str = ''; + $is_int = array(); + while ($field = mysql_fetch_field($query->result_id)) + { + // Most versions of MySQL store timestamp as a string + $is_int[$i] = in_array(strtolower(mysql_field_type($query->result_id, $i)), + array('tinyint', 'smallint', 'mediumint', 'int', 'bigint'), //, 'timestamp'), + TRUE); + + // Create a string of field names + $field_str .= $this->db->escape_identifiers($field->name).', '; + $i++; + } + + // Trim off the end comma + $field_str = preg_replace('/, $/' , '', $field_str); + + // Build the insert string + foreach ($query->result_array() as $row) + { + $val_str = ''; + + $i = 0; + foreach ($row as $v) + { + // Is the value NULL? + if ($v === NULL) + { + $val_str .= 'NULL'; + } + else + { + // Escape the data if it's not an integer + $val_str .= ($is_int[$i] === FALSE) ? $this->db->escape($v) : $v; + } + + // Append a comma + $val_str .= ', '; + $i++; + } + + // Remove the comma at the end of the string + $val_str = preg_replace('/, $/' , '', $val_str); + + // Build the INSERT string + $output .= 'INSERT INTO '.$this->db->protect_identifiers($table).' ('.$field_str.') VALUES ('.$val_str.');'.$newline; + } + + $output .= $newline.$newline; + } + + // Do we need to include a statement to re-enable foreign key checks? + if ($foreign_key_checks === FALSE) + { + $output .= 'SET foreign_key_checks = 1;'.$newline; + } + + return $output; + } + +} diff --git a/ci/system/database/drivers/mysqli/index.html b/ci/system/database/drivers/mysqli/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/system/database/drivers/mysqli/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/system/database/drivers/mysqli/mysqli_driver.php b/ci/system/database/drivers/mysqli/mysqli_driver.php new file mode 100644 index 0000000..f5e9949 --- /dev/null +++ b/ci/system/database/drivers/mysqli/mysqli_driver.php @@ -0,0 +1,554 @@ +report_mode = MYSQLI_REPORT_OFF; + } + + // Do we have a socket path? + if ($this->hostname[0] === '/') + { + $hostname = NULL; + $port = NULL; + $socket = $this->hostname; + } + else + { + $hostname = ($persistent === TRUE) + ? 'p:'.$this->hostname : $this->hostname; + $port = empty($this->port) ? NULL : $this->port; + $socket = NULL; + } + + $client_flags = ($this->compress === TRUE) ? MYSQLI_CLIENT_COMPRESS : 0; + $this->_mysqli = mysqli_init(); + + $this->_mysqli->options(MYSQLI_OPT_CONNECT_TIMEOUT, 10); + + if (isset($this->stricton)) + { + if ($this->stricton) + { + $this->_mysqli->options(MYSQLI_INIT_COMMAND, 'SET SESSION sql_mode = CONCAT(@@sql_mode, ",", "STRICT_ALL_TABLES")'); + } + else + { + $this->_mysqli->options(MYSQLI_INIT_COMMAND, + 'SET SESSION sql_mode = + REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE( + @@sql_mode, + "STRICT_ALL_TABLES,", ""), + ",STRICT_ALL_TABLES", ""), + "STRICT_ALL_TABLES", ""), + "STRICT_TRANS_TABLES,", ""), + ",STRICT_TRANS_TABLES", ""), + "STRICT_TRANS_TABLES", "")' + ); + } + } + + if (is_array($this->encrypt)) + { + $ssl = array(); + empty($this->encrypt['ssl_key']) OR $ssl['key'] = $this->encrypt['ssl_key']; + empty($this->encrypt['ssl_cert']) OR $ssl['cert'] = $this->encrypt['ssl_cert']; + empty($this->encrypt['ssl_ca']) OR $ssl['ca'] = $this->encrypt['ssl_ca']; + empty($this->encrypt['ssl_capath']) OR $ssl['capath'] = $this->encrypt['ssl_capath']; + empty($this->encrypt['ssl_cipher']) OR $ssl['cipher'] = $this->encrypt['ssl_cipher']; + + if (isset($this->encrypt['ssl_verify'])) + { + $client_flags |= MYSQLI_CLIENT_SSL; + + if ($this->encrypt['ssl_verify']) + { + defined('MYSQLI_OPT_SSL_VERIFY_SERVER_CERT') && $this->_mysqli->options(MYSQLI_OPT_SSL_VERIFY_SERVER_CERT, TRUE); + } + // Apparently (when it exists), setting MYSQLI_OPT_SSL_VERIFY_SERVER_CERT + // to FALSE didn't do anything, so PHP 5.6.16 introduced yet another + // constant ... + // + // https://secure.php.net/ChangeLog-5.php#5.6.16 + // https://bugs.php.net/bug.php?id=68344 + elseif (defined('MYSQLI_CLIENT_SSL_DONT_VERIFY_SERVER_CERT')) + { + $client_flags |= MYSQLI_CLIENT_SSL_DONT_VERIFY_SERVER_CERT; + } + } + + if ( ! empty($ssl)) + { + $client_flags |= MYSQLI_CLIENT_SSL; + $this->_mysqli->ssl_set( + isset($ssl['key']) ? $ssl['key'] : NULL, + isset($ssl['cert']) ? $ssl['cert'] : NULL, + isset($ssl['ca']) ? $ssl['ca'] : NULL, + isset($ssl['capath']) ? $ssl['capath'] : NULL, + isset($ssl['cipher']) ? $ssl['cipher'] : NULL + ); + } + } + + if ($this->_mysqli->real_connect($hostname, $this->username, $this->password, $this->database, $port, $socket, $client_flags)) + { + // Prior to version 5.7.3, MySQL silently downgrades to an unencrypted connection if SSL setup fails + if ( + ($client_flags & MYSQLI_CLIENT_SSL) + && version_compare($this->_mysqli->client_info, '5.7.3', '<=') + && empty($this->_mysqli->query("SHOW STATUS LIKE 'ssl_cipher'")->fetch_object()->Value) + ) + { + $this->_mysqli->close(); + $message = 'MySQLi was configured for an SSL connection, but got an unencrypted connection instead!'; + log_message('error', $message); + return ($this->db_debug) ? $this->display_error($message, '', TRUE) : FALSE; + } + + return $this->_mysqli; + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Reconnect + * + * Keep / reestablish the db connection if no queries have been + * sent for a length of time exceeding the server's idle timeout + * + * @return void + */ + public function reconnect() + { + if ($this->conn_id !== FALSE && $this->conn_id->ping() === FALSE) + { + $this->conn_id = FALSE; + } + } + + // -------------------------------------------------------------------- + + /** + * Select the database + * + * @param string $database + * @return bool + */ + public function db_select($database = '') + { + if ($database === '') + { + $database = $this->database; + } + + if ($this->conn_id->select_db($database)) + { + $this->database = $database; + $this->data_cache = array(); + return TRUE; + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Set client character set + * + * @param string $charset + * @return bool + */ + protected function _db_set_charset($charset) + { + return $this->conn_id->set_charset($charset); + } + + // -------------------------------------------------------------------- + + /** + * Database version number + * + * @return string + */ + public function version() + { + if (isset($this->data_cache['version'])) + { + return $this->data_cache['version']; + } + + return $this->data_cache['version'] = $this->conn_id->server_info; + } + + // -------------------------------------------------------------------- + + /** + * Execute the query + * + * @param string $sql an SQL query + * @return mixed + */ + protected function _execute($sql) + { + return $this->conn_id->query($this->_prep_query($sql)); + } + + // -------------------------------------------------------------------- + + /** + * Prep the query + * + * If needed, each database adapter can prep the query string + * + * @param string $sql an SQL query + * @return string + */ + protected function _prep_query($sql) + { + // mysqli_affected_rows() returns 0 for "DELETE FROM TABLE" queries. This hack + // modifies the query so that it a proper number of affected rows is returned. + if ($this->delete_hack === TRUE && preg_match('/^\s*DELETE\s+FROM\s+(\S+)\s*$/i', $sql)) + { + return trim($sql).' WHERE 1=1'; + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Begin Transaction + * + * @return bool + */ + protected function _trans_begin() + { + $this->conn_id->autocommit(FALSE); + return is_php('5.5') + ? $this->conn_id->begin_transaction() + : $this->simple_query('START TRANSACTION'); // can also be BEGIN or BEGIN WORK + } + + // -------------------------------------------------------------------- + + /** + * Commit Transaction + * + * @return bool + */ + protected function _trans_commit() + { + if ($this->conn_id->commit()) + { + $this->conn_id->autocommit(TRUE); + return TRUE; + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Rollback Transaction + * + * @return bool + */ + protected function _trans_rollback() + { + if ($this->conn_id->rollback()) + { + $this->conn_id->autocommit(TRUE); + return TRUE; + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Platform-dependent string escape + * + * @param string + * @return string + */ + protected function _escape_str($str) + { + return $this->conn_id->real_escape_string($str); + } + + // -------------------------------------------------------------------- + + /** + * Affected Rows + * + * @return int + */ + public function affected_rows() + { + return $this->conn_id->affected_rows; + } + + // -------------------------------------------------------------------- + + /** + * Insert ID + * + * @return int + */ + public function insert_id() + { + return $this->conn_id->insert_id; + } + + // -------------------------------------------------------------------- + + /** + * List table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SHOW TABLES FROM '.$this->_escape_char.$this->database.$this->_escape_char; + + if ($prefix_limit !== FALSE && $this->dbprefix !== '') + { + return $sql." LIKE '".$this->escape_like_str($this->dbprefix)."%'"; + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + return 'SHOW COLUMNS FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + if (($query = $this->query('SHOW COLUMNS FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE))) === FALSE) + { + return FALSE; + } + $query = $query->result_object(); + + $retval = array(); + for ($i = 0, $c = count($query); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $query[$i]->Field; + + sscanf($query[$i]->Type, '%[a-z](%d)', + $retval[$i]->type, + $retval[$i]->max_length + ); + + $retval[$i]->default = $query[$i]->Default; + $retval[$i]->primary_key = (int) ($query[$i]->Key === 'PRI'); + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Error + * + * Returns an array containing code and message of the last + * database error that has occurred. + * + * @return array + */ + public function error() + { + if ( ! empty($this->_mysqli->connect_errno)) + { + return array( + 'code' => $this->_mysqli->connect_errno, + 'message' => $this->_mysqli->connect_error + ); + } + + return array('code' => $this->conn_id->errno, 'message' => $this->conn_id->error); + } + + // -------------------------------------------------------------------- + + /** + * FROM tables + * + * Groups tables in FROM clauses if needed, so there is no confusion + * about operator precedence. + * + * @return string + */ + protected function _from_tables() + { + if ( ! empty($this->qb_join) && count($this->qb_from) > 1) + { + return '('.implode(', ', $this->qb_from).')'; + } + + return implode(', ', $this->qb_from); + } + + // -------------------------------------------------------------------- + + /** + * Close DB Connection + * + * @return void + */ + protected function _close() + { + $this->conn_id->close(); + } + +} diff --git a/ci/system/database/drivers/mysqli/mysqli_forge.php b/ci/system/database/drivers/mysqli/mysqli_forge.php new file mode 100644 index 0000000..992c772 --- /dev/null +++ b/ci/system/database/drivers/mysqli/mysqli_forge.php @@ -0,0 +1,245 @@ +db->char_set) && ! strpos($sql, 'CHARACTER SET') && ! strpos($sql, 'CHARSET')) + { + $sql .= ' DEFAULT CHARACTER SET = '.$this->db->char_set; + } + + if ( ! empty($this->db->dbcollat) && ! strpos($sql, 'COLLATE')) + { + $sql .= ' COLLATE = '.$this->db->dbcollat; + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if ($alter_type === 'DROP') + { + return parent::_alter_table($alter_type, $table, $field); + } + + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + if ($field[$i]['_literal'] !== FALSE) + { + $field[$i] = ($alter_type === 'ADD') + ? "\n\tADD ".$field[$i]['_literal'] + : "\n\tMODIFY ".$field[$i]['_literal']; + } + else + { + if ($alter_type === 'ADD') + { + $field[$i]['_literal'] = "\n\tADD "; + } + else + { + $field[$i]['_literal'] = empty($field[$i]['new_name']) ? "\n\tMODIFY " : "\n\tCHANGE "; + } + + $field[$i] = $field[$i]['_literal'].$this->_process_column($field[$i]); + } + } + + return array($sql.implode(',', $field)); + } + + // -------------------------------------------------------------------- + + /** + * Process column + * + * @param array $field + * @return string + */ + protected function _process_column($field) + { + $extra_clause = isset($field['after']) + ? ' AFTER '.$this->db->escape_identifiers($field['after']) : ''; + + if (empty($extra_clause) && isset($field['first']) && $field['first'] === TRUE) + { + $extra_clause = ' FIRST'; + } + + return $this->db->escape_identifiers($field['name']) + .(empty($field['new_name']) ? '' : ' '.$this->db->escape_identifiers($field['new_name'])) + .' '.$field['type'].$field['length'] + .$field['unsigned'] + .$field['null'] + .$field['default'] + .$field['auto_increment'] + .$field['unique'] + .(empty($field['comment']) ? '' : ' COMMENT '.$field['comment']) + .$extra_clause; + } + + // -------------------------------------------------------------------- + + /** + * Process indexes + * + * @param string $table (ignored) + * @return string + */ + protected function _process_indexes($table) + { + $sql = ''; + + for ($i = 0, $c = count($this->keys); $i < $c; $i++) + { + if (is_array($this->keys[$i])) + { + for ($i2 = 0, $c2 = count($this->keys[$i]); $i2 < $c2; $i2++) + { + if ( ! isset($this->fields[$this->keys[$i][$i2]])) + { + unset($this->keys[$i][$i2]); + continue; + } + } + } + elseif ( ! isset($this->fields[$this->keys[$i]])) + { + unset($this->keys[$i]); + continue; + } + + is_array($this->keys[$i]) OR $this->keys[$i] = array($this->keys[$i]); + + $sql .= ",\n\tKEY ".$this->db->escape_identifiers(implode('_', $this->keys[$i])) + .' ('.implode(', ', $this->db->escape_identifiers($this->keys[$i])).')'; + } + + $this->keys = array(); + + return $sql; + } + +} diff --git a/ci/system/database/drivers/mysqli/mysqli_result.php b/ci/system/database/drivers/mysqli/mysqli_result.php new file mode 100644 index 0000000..8c4f94d --- /dev/null +++ b/ci/system/database/drivers/mysqli/mysqli_result.php @@ -0,0 +1,233 @@ +num_rows) + ? $this->num_rows + : $this->num_rows = $this->result_id->num_rows; + } + + // -------------------------------------------------------------------- + + /** + * Number of fields in the result set + * + * @return int + */ + public function num_fields() + { + return $this->result_id->field_count; + } + + // -------------------------------------------------------------------- + + /** + * Fetch Field Names + * + * Generates an array of column names + * + * @return array + */ + public function list_fields() + { + $field_names = array(); + $this->result_id->field_seek(0); + while ($field = $this->result_id->fetch_field()) + { + $field_names[] = $field->name; + } + + return $field_names; + } + + // -------------------------------------------------------------------- + + /** + * Field data + * + * Generates an array of objects containing field meta-data + * + * @return array + */ + public function field_data() + { + $retval = array(); + $field_data = $this->result_id->fetch_fields(); + for ($i = 0, $c = count($field_data); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $field_data[$i]->name; + $retval[$i]->type = static::_get_field_type($field_data[$i]->type); + $retval[$i]->max_length = $field_data[$i]->max_length; + $retval[$i]->primary_key = (int) ($field_data[$i]->flags & MYSQLI_PRI_KEY_FLAG); + $retval[$i]->default = $field_data[$i]->def; + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Get field type + * + * Extracts field type info from the bitflags returned by + * mysqli_result::fetch_fields() + * + * @used-by CI_DB_mysqli_result::field_data() + * @param int $type + * @return string + */ + private static function _get_field_type($type) + { + static $map; + isset($map) OR $map = array( + MYSQLI_TYPE_DECIMAL => 'decimal', + MYSQLI_TYPE_BIT => 'bit', + MYSQLI_TYPE_TINY => 'tinyint', + MYSQLI_TYPE_SHORT => 'smallint', + MYSQLI_TYPE_INT24 => 'mediumint', + MYSQLI_TYPE_LONG => 'int', + MYSQLI_TYPE_LONGLONG => 'bigint', + MYSQLI_TYPE_FLOAT => 'float', + MYSQLI_TYPE_DOUBLE => 'double', + MYSQLI_TYPE_TIMESTAMP => 'timestamp', + MYSQLI_TYPE_DATE => 'date', + MYSQLI_TYPE_TIME => 'time', + MYSQLI_TYPE_DATETIME => 'datetime', + MYSQLI_TYPE_YEAR => 'year', + MYSQLI_TYPE_NEWDATE => 'date', + MYSQLI_TYPE_INTERVAL => 'interval', + MYSQLI_TYPE_ENUM => 'enum', + MYSQLI_TYPE_SET => 'set', + MYSQLI_TYPE_TINY_BLOB => 'tinyblob', + MYSQLI_TYPE_MEDIUM_BLOB => 'mediumblob', + MYSQLI_TYPE_BLOB => 'blob', + MYSQLI_TYPE_LONG_BLOB => 'longblob', + MYSQLI_TYPE_STRING => 'char', + MYSQLI_TYPE_VAR_STRING => 'varchar', + MYSQLI_TYPE_GEOMETRY => 'geometry' + ); + + return isset($map[$type]) ? $map[$type] : $type; + } + + // -------------------------------------------------------------------- + + /** + * Free the result + * + * @return void + */ + public function free_result() + { + if (is_object($this->result_id)) + { + $this->result_id->free(); + $this->result_id = FALSE; + } + } + + // -------------------------------------------------------------------- + + /** + * Data Seek + * + * Moves the internal pointer to the desired offset. We call + * this internally before fetching results to make sure the + * result set starts at zero. + * + * @param int $n + * @return bool + */ + public function data_seek($n = 0) + { + return $this->result_id->data_seek($n); + } + + // -------------------------------------------------------------------- + + /** + * Result - associative array + * + * Returns the result set as an array + * + * @return array + */ + protected function _fetch_assoc() + { + return $this->result_id->fetch_assoc(); + } + + // -------------------------------------------------------------------- + + /** + * Result - object + * + * Returns the result set as an object + * + * @param string $class_name + * @return object + */ + protected function _fetch_object($class_name = 'stdClass') + { + return $this->result_id->fetch_object($class_name); + } + +} diff --git a/ci/system/database/drivers/mysqli/mysqli_utility.php b/ci/system/database/drivers/mysqli/mysqli_utility.php new file mode 100644 index 0000000..6a7d419 --- /dev/null +++ b/ci/system/database/drivers/mysqli/mysqli_utility.php @@ -0,0 +1,212 @@ +db->query('SHOW CREATE TABLE '.$this->db->escape_identifiers($this->db->database.'.'.$table)); + + // No result means the table name was invalid + if ($query === FALSE) + { + continue; + } + + // Write out the table schema + $output .= '#'.$newline.'# TABLE STRUCTURE FOR: '.$table.$newline.'#'.$newline.$newline; + + if ($add_drop === TRUE) + { + $output .= 'DROP TABLE IF EXISTS '.$this->db->protect_identifiers($table).';'.$newline.$newline; + } + + $i = 0; + $result = $query->result_array(); + foreach ($result[0] as $val) + { + if ($i++ % 2) + { + $output .= $val.';'.$newline.$newline; + } + } + + // If inserts are not needed we're done... + if ($add_insert === FALSE) + { + continue; + } + + // Grab all the data from the current table + $query = $this->db->query('SELECT * FROM '.$this->db->protect_identifiers($table)); + + if ($query->num_rows() === 0) + { + continue; + } + + // Fetch the field names and determine if the field is an + // integer type. We use this info to decide whether to + // surround the data with quotes or not + + $i = 0; + $field_str = ''; + $is_int = array(); + while ($field = $query->result_id->fetch_field()) + { + // Most versions of MySQL store timestamp as a string + $is_int[$i] = in_array($field->type, array(MYSQLI_TYPE_TINY, MYSQLI_TYPE_SHORT, MYSQLI_TYPE_INT24, MYSQLI_TYPE_LONG), TRUE); + + // Create a string of field names + $field_str .= $this->db->escape_identifiers($field->name).', '; + $i++; + } + + // Trim off the end comma + $field_str = preg_replace('/, $/' , '', $field_str); + + // Build the insert string + foreach ($query->result_array() as $row) + { + $val_str = ''; + + $i = 0; + foreach ($row as $v) + { + // Is the value NULL? + if ($v === NULL) + { + $val_str .= 'NULL'; + } + else + { + // Escape the data if it's not an integer + $val_str .= ($is_int[$i] === FALSE) ? $this->db->escape($v) : $v; + } + + // Append a comma + $val_str .= ', '; + $i++; + } + + // Remove the comma at the end of the string + $val_str = preg_replace('/, $/' , '', $val_str); + + // Build the INSERT string + $output .= 'INSERT INTO '.$this->db->protect_identifiers($table).' ('.$field_str.') VALUES ('.$val_str.');'.$newline; + } + + $output .= $newline.$newline; + } + + // Do we need to include a statement to re-enable foreign key checks? + if ($foreign_key_checks === FALSE) + { + $output .= 'SET foreign_key_checks = 1;'.$newline; + } + + return $output; + } + +} diff --git a/ci/system/database/drivers/oci8/index.html b/ci/system/database/drivers/oci8/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/system/database/drivers/oci8/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/system/database/drivers/oci8/oci8_driver.php b/ci/system/database/drivers/oci8/oci8_driver.php new file mode 100644 index 0000000..7bb43b5 --- /dev/null +++ b/ci/system/database/drivers/oci8/oci8_driver.php @@ -0,0 +1,712 @@ + '/^\(DESCRIPTION=(\(.+\)){2,}\)$/', // TNS + // Easy Connect string (Oracle 10g+) + 'ec' => '/^(\/\/)?[a-z0-9.:_-]+(:[1-9][0-9]{0,4})?(\/[a-z0-9$_]+)?(:[^\/])?(\/[a-z0-9$_]+)?$/i', + 'in' => '/^[a-z0-9$_]+$/i' // Instance name (defined in tnsnames.ora) + ); + + /* Space characters don't have any effect when actually + * connecting, but can be a hassle while validating the DSN. + */ + $this->dsn = str_replace(array("\n", "\r", "\t", ' '), '', $this->dsn); + + if ($this->dsn !== '') + { + foreach ($valid_dsns as $regexp) + { + if (preg_match($regexp, $this->dsn)) + { + return; + } + } + } + + // Legacy support for TNS in the hostname configuration field + $this->hostname = str_replace(array("\n", "\r", "\t", ' '), '', $this->hostname); + if (preg_match($valid_dsns['tns'], $this->hostname)) + { + $this->dsn = $this->hostname; + return; + } + elseif ($this->hostname !== '' && strpos($this->hostname, '/') === FALSE && strpos($this->hostname, ':') === FALSE + && (( ! empty($this->port) && ctype_digit($this->port)) OR $this->database !== '')) + { + /* If the hostname field isn't empty, doesn't contain + * ':' and/or '/' and if port and/or database aren't + * empty, then the hostname field is most likely indeed + * just a hostname. Therefore we'll try and build an + * Easy Connect string from these 3 settings, assuming + * that the database field is a service name. + */ + $this->dsn = $this->hostname + .(( ! empty($this->port) && ctype_digit($this->port)) ? ':'.$this->port : '') + .($this->database !== '' ? '/'.ltrim($this->database, '/') : ''); + + if (preg_match($valid_dsns['ec'], $this->dsn)) + { + return; + } + } + + /* At this point, we can only try and validate the hostname and + * database fields separately as DSNs. + */ + if (preg_match($valid_dsns['ec'], $this->hostname) OR preg_match($valid_dsns['in'], $this->hostname)) + { + $this->dsn = $this->hostname; + return; + } + + $this->database = str_replace(array("\n", "\r", "\t", ' '), '', $this->database); + foreach ($valid_dsns as $regexp) + { + if (preg_match($regexp, $this->database)) + { + return; + } + } + + /* Well - OK, an empty string should work as well. + * PHP will try to use environment variables to + * determine which Oracle instance to connect to. + */ + $this->dsn = ''; + } + + // -------------------------------------------------------------------- + + /** + * Non-persistent database connection + * + * @param bool $persistent + * @return resource + */ + public function db_connect($persistent = FALSE) + { + $func = ($persistent === TRUE) ? 'oci_pconnect' : 'oci_connect'; + return empty($this->char_set) + ? $func($this->username, $this->password, $this->dsn) + : $func($this->username, $this->password, $this->dsn, $this->char_set); + } + + // -------------------------------------------------------------------- + + /** + * Database version number + * + * @return string + */ + public function version() + { + if (isset($this->data_cache['version'])) + { + return $this->data_cache['version']; + } + + if ( ! $this->conn_id OR ($version_string = oci_server_version($this->conn_id)) === FALSE) + { + return FALSE; + } + elseif (preg_match('#Release\s(\d+(?:\.\d+)+)#', $version_string, $match)) + { + return $this->data_cache['version'] = $match[1]; + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Execute the query + * + * @param string $sql an SQL query + * @return resource + */ + protected function _execute($sql) + { + /* Oracle must parse the query before it is run. All of the actions with + * the query are based on the statement id returned by oci_parse(). + */ + if ($this->_reset_stmt_id === TRUE) + { + $this->stmt_id = oci_parse($this->conn_id, $sql); + } + + oci_set_prefetch($this->stmt_id, 1000); + return oci_execute($this->stmt_id, $this->commit_mode); + } + + // -------------------------------------------------------------------- + + /** + * Get cursor. Returns a cursor from the database + * + * @return resource + */ + public function get_cursor() + { + return $this->curs_id = oci_new_cursor($this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * Stored Procedure. Executes a stored procedure + * + * @param string package name in which the stored procedure is in + * @param string stored procedure name to execute + * @param array parameters + * @return mixed + * + * params array keys + * + * KEY OPTIONAL NOTES + * name no the name of the parameter should be in : format + * value no the value of the parameter. If this is an OUT or IN OUT parameter, + * this should be a reference to a variable + * type yes the type of the parameter + * length yes the max size of the parameter + */ + public function stored_procedure($package, $procedure, array $params) + { + if ($package === '' OR $procedure === '') + { + log_message('error', 'Invalid query: '.$package.'.'.$procedure); + return ($this->db_debug) ? $this->display_error('db_invalid_query') : FALSE; + } + + // Build the query string + $sql = 'BEGIN '.$package.'.'.$procedure.'('; + + $have_cursor = FALSE; + foreach ($params as $param) + { + $sql .= $param['name'].','; + + if (isset($param['type']) && $param['type'] === OCI_B_CURSOR) + { + $have_cursor = TRUE; + } + } + $sql = trim($sql, ',').'); END;'; + + $this->_reset_stmt_id = FALSE; + $this->stmt_id = oci_parse($this->conn_id, $sql); + $this->_bind_params($params); + $result = $this->query($sql, FALSE, $have_cursor); + $this->_reset_stmt_id = TRUE; + return $result; + } + + // -------------------------------------------------------------------- + + /** + * Bind parameters + * + * @param array $params + * @return void + */ + protected function _bind_params($params) + { + if ( ! is_array($params) OR ! is_resource($this->stmt_id)) + { + return; + } + + foreach ($params as $param) + { + foreach (array('name', 'value', 'type', 'length') as $val) + { + if ( ! isset($param[$val])) + { + $param[$val] = ''; + } + } + + oci_bind_by_name($this->stmt_id, $param['name'], $param['value'], $param['length'], $param['type']); + } + } + + // -------------------------------------------------------------------- + + /** + * Begin Transaction + * + * @return bool + */ + protected function _trans_begin() + { + $this->commit_mode = OCI_NO_AUTO_COMMIT; + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Commit Transaction + * + * @return bool + */ + protected function _trans_commit() + { + $this->commit_mode = OCI_COMMIT_ON_SUCCESS; + + return oci_commit($this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * Rollback Transaction + * + * @return bool + */ + protected function _trans_rollback() + { + $this->commit_mode = OCI_COMMIT_ON_SUCCESS; + return oci_rollback($this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * Affected Rows + * + * @return int + */ + public function affected_rows() + { + return oci_num_rows($this->stmt_id); + } + + // -------------------------------------------------------------------- + + /** + * Insert ID + * + * @return int + */ + public function insert_id() + { + // not supported in oracle + return $this->display_error('db_unsupported_function'); + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SELECT "TABLE_NAME" FROM "ALL_TABLES"'; + + if ($prefix_limit !== FALSE && $this->dbprefix !== '') + { + return $sql.' WHERE "TABLE_NAME" LIKE \''.$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + if (strpos($table, '.') !== FALSE) + { + sscanf($table, '%[^.].%s', $owner, $table); + } + else + { + $owner = $this->username; + } + + return 'SELECT COLUMN_NAME FROM ALL_TAB_COLUMNS + WHERE UPPER(OWNER) = '.$this->escape(strtoupper($owner)).' + AND UPPER(TABLE_NAME) = '.$this->escape(strtoupper($table)); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + if (strpos($table, '.') !== FALSE) + { + sscanf($table, '%[^.].%s', $owner, $table); + } + else + { + $owner = $this->username; + } + + $sql = 'SELECT COLUMN_NAME, DATA_TYPE, CHAR_LENGTH, DATA_PRECISION, DATA_LENGTH, DATA_DEFAULT, NULLABLE + FROM ALL_TAB_COLUMNS + WHERE UPPER(OWNER) = '.$this->escape(strtoupper($owner)).' + AND UPPER(TABLE_NAME) = '.$this->escape(strtoupper($table)); + + if (($query = $this->query($sql)) === FALSE) + { + return FALSE; + } + $query = $query->result_object(); + + $retval = array(); + for ($i = 0, $c = count($query); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $query[$i]->COLUMN_NAME; + $retval[$i]->type = $query[$i]->DATA_TYPE; + + $length = ($query[$i]->CHAR_LENGTH > 0) + ? $query[$i]->CHAR_LENGTH : $query[$i]->DATA_PRECISION; + if ($length === NULL) + { + $length = $query[$i]->DATA_LENGTH; + } + $retval[$i]->max_length = $length; + + $default = $query[$i]->DATA_DEFAULT; + if ($default === NULL && $query[$i]->NULLABLE === 'N') + { + $default = ''; + } + $retval[$i]->default = $default; + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Error + * + * Returns an array containing code and message of the last + * database error that has occurred. + * + * @return array + */ + public function error() + { + // oci_error() returns an array that already contains + // 'code' and 'message' keys, but it can return false + // if there was no error .... + if (is_resource($this->curs_id)) + { + $error = oci_error($this->curs_id); + } + elseif (is_resource($this->stmt_id)) + { + $error = oci_error($this->stmt_id); + } + elseif (is_resource($this->conn_id)) + { + $error = oci_error($this->conn_id); + } + else + { + $error = oci_error(); + } + + return is_array($error) + ? $error + : array('code' => '', 'message' => ''); + } + + // -------------------------------------------------------------------- + + /** + * Insert batch statement + * + * Generates a platform-specific insert string from the supplied data + * + * @param string $table Table name + * @param array $keys INSERT keys + * @param array $values INSERT values + * @return string + */ + protected function _insert_batch($table, $keys, $values) + { + $keys = implode(', ', $keys); + $sql = "INSERT ALL\n"; + + for ($i = 0, $c = count($values); $i < $c; $i++) + { + $sql .= ' INTO '.$table.' ('.$keys.') VALUES '.$values[$i]."\n"; + } + + return $sql.'SELECT * FROM dual'; + } + + // -------------------------------------------------------------------- + + /** + * Truncate statement + * + * Generates a platform-specific truncate string from the supplied data + * + * If the database does not support the TRUNCATE statement, + * then this method maps to 'DELETE FROM table' + * + * @param string $table + * @return string + */ + protected function _truncate($table) + { + return 'TRUNCATE TABLE '.$table; + } + + // -------------------------------------------------------------------- + + /** + * Delete statement + * + * Generates a platform-specific delete string from the supplied data + * + * @param string $table + * @return string + */ + protected function _delete($table) + { + if ($this->qb_limit) + { + $this->where('rownum <= ',$this->qb_limit, FALSE); + $this->qb_limit = FALSE; + } + + return parent::_delete($table); + } + + // -------------------------------------------------------------------- + + /** + * LIMIT + * + * Generates a platform-specific LIMIT clause + * + * @param string $sql SQL Query + * @return string + */ + protected function _limit($sql) + { + if (version_compare($this->version(), '12.1', '>=')) + { + // OFFSET-FETCH can be used only with the ORDER BY clause + empty($this->qb_orderby) && $sql .= ' ORDER BY 1'; + + return $sql.' OFFSET '.(int) $this->qb_offset.' ROWS FETCH NEXT '.$this->qb_limit.' ROWS ONLY'; + } + + $this->limit_used = TRUE; + return 'SELECT * FROM (SELECT inner_query.*, rownum rnum FROM ('.$sql.') inner_query WHERE rownum < '.($this->qb_offset + $this->qb_limit + 1).')' + .($this->qb_offset ? ' WHERE rnum >= '.($this->qb_offset + 1) : ''); + } + + // -------------------------------------------------------------------- + + /** + * Close DB Connection + * + * @return void + */ + protected function _close() + { + if (is_resource($this->curs_id)) + { + oci_free_statement($this->curs_id); + } + + if (is_resource($this->stmt_id)) + { + oci_free_statement($this->stmt_id); + } + + oci_close($this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * We need to reset our $limit_used hack flag, so it doesn't propagate + * to subsequent queries. + * + * @return void + */ + protected function _reset_select() + { + $this->limit_used = FALSE; + parent::_reset_select(); + } +} diff --git a/ci/system/database/drivers/oci8/oci8_forge.php b/ci/system/database/drivers/oci8/oci8_forge.php new file mode 100644 index 0000000..9910b11 --- /dev/null +++ b/ci/system/database/drivers/oci8/oci8_forge.php @@ -0,0 +1,217 @@ +db->escape_identifiers($table); + $sqls = array(); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + if ($field[$i]['_literal'] !== FALSE) + { + $field[$i] = "\n\t".$field[$i]['_literal']; + } + else + { + $field[$i]['_literal'] = "\n\t".$this->_process_column($field[$i]); + + if ( ! empty($field[$i]['comment'])) + { + $sqls[] = 'COMMENT ON COLUMN ' + .$this->db->escape_identifiers($table).'.'.$this->db->escape_identifiers($field[$i]['name']) + .' IS '.$field[$i]['comment']; + } + + if ($alter_type === 'MODIFY' && ! empty($field[$i]['new_name'])) + { + $sqls[] = $sql.' RENAME COLUMN '.$this->db->escape_identifiers($field[$i]['name']) + .' TO '.$this->db->escape_identifiers($field[$i]['new_name']); + } + + $field[$i] = "\n\t".$field[$i]['_literal']; + } + } + + $sql .= ' '.$alter_type.' '; + $sql .= (count($field) === 1) + ? $field[0] + : '('.implode(',', $field).')'; + + // RENAME COLUMN must be executed after MODIFY + array_unshift($sqls, $sql); + return $sqls; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE && stripos($field['type'], 'number') !== FALSE && version_compare($this->db->version(), '12.1', '>=')) + { + $field['auto_increment'] = ' GENERATED ALWAYS AS IDENTITY'; + } + } + + // -------------------------------------------------------------------- + + /** + * Process column + * + * @param array $field + * @return string + */ + protected function _process_column($field) + { + return $this->db->escape_identifiers($field['name']) + .' '.$field['type'].$field['length'] + .$field['unsigned'] + .$field['default'] + .$field['auto_increment'] + .$field['null'] + .$field['unique']; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'TINYINT': + $attributes['TYPE'] = 'NUMBER'; + return; + case 'MEDIUMINT': + $attributes['TYPE'] = 'NUMBER'; + return; + case 'INT': + $attributes['TYPE'] = 'NUMBER'; + return; + case 'BIGINT': + $attributes['TYPE'] = 'NUMBER'; + return; + default: return; + } + } +} diff --git a/ci/system/database/drivers/oci8/oci8_result.php b/ci/system/database/drivers/oci8/oci8_result.php new file mode 100644 index 0000000..4312f9b --- /dev/null +++ b/ci/system/database/drivers/oci8/oci8_result.php @@ -0,0 +1,230 @@ +stmt_id = $driver_object->stmt_id; + $this->curs_id = $driver_object->curs_id; + $this->limit_used = $driver_object->limit_used; + $this->commit_mode =& $driver_object->commit_mode; + $driver_object->stmt_id = FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Number of fields in the result set + * + * @return int + */ + public function num_fields() + { + $count = oci_num_fields($this->stmt_id); + + // if we used a limit we subtract it + return ($this->limit_used) ? $count - 1 : $count; + } + + // -------------------------------------------------------------------- + + /** + * Fetch Field Names + * + * Generates an array of column names + * + * @return array + */ + public function list_fields() + { + $field_names = array(); + for ($c = 1, $fieldCount = $this->num_fields(); $c <= $fieldCount; $c++) + { + $field_names[] = oci_field_name($this->stmt_id, $c); + } + return $field_names; + } + + // -------------------------------------------------------------------- + + /** + * Field data + * + * Generates an array of objects containing field meta-data + * + * @return array + */ + public function field_data() + { + $retval = array(); + for ($c = 1, $fieldCount = $this->num_fields(); $c <= $fieldCount; $c++) + { + $F = new stdClass(); + $F->name = oci_field_name($this->stmt_id, $c); + $F->type = oci_field_type($this->stmt_id, $c); + $F->max_length = oci_field_size($this->stmt_id, $c); + + $retval[] = $F; + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Free the result + * + * @return void + */ + public function free_result() + { + if (is_resource($this->result_id)) + { + oci_free_statement($this->result_id); + $this->result_id = FALSE; + } + + if (is_resource($this->stmt_id)) + { + oci_free_statement($this->stmt_id); + } + + if (is_resource($this->curs_id)) + { + oci_cancel($this->curs_id); + $this->curs_id = NULL; + } + } + + // -------------------------------------------------------------------- + + /** + * Result - associative array + * + * Returns the result set as an array + * + * @return array + */ + protected function _fetch_assoc() + { + $id = ($this->curs_id) ? $this->curs_id : $this->stmt_id; + return oci_fetch_assoc($id); + } + + // -------------------------------------------------------------------- + + /** + * Result - object + * + * Returns the result set as an object + * + * @param string $class_name + * @return object + */ + protected function _fetch_object($class_name = 'stdClass') + { + $row = ($this->curs_id) + ? oci_fetch_object($this->curs_id) + : oci_fetch_object($this->stmt_id); + + if ($class_name === 'stdClass' OR ! $row) + { + return $row; + } + + $class_name = new $class_name(); + foreach ($row as $key => $value) + { + $class_name->$key = $value; + } + + return $class_name; + } + +} diff --git a/ci/system/database/drivers/oci8/oci8_utility.php b/ci/system/database/drivers/oci8/oci8_utility.php new file mode 100644 index 0000000..bcce114 --- /dev/null +++ b/ci/system/database/drivers/oci8/oci8_utility.php @@ -0,0 +1,69 @@ +db->display_error('db_unsupported_feature'); + } + +} diff --git a/ci/system/database/drivers/odbc/index.html b/ci/system/database/drivers/odbc/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/system/database/drivers/odbc/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/system/database/drivers/odbc/odbc_driver.php b/ci/system/database/drivers/odbc/odbc_driver.php new file mode 100644 index 0000000..cfb9d57 --- /dev/null +++ b/ci/system/database/drivers/odbc/odbc_driver.php @@ -0,0 +1,426 @@ +dsn)) + { + $this->dsn = $this->hostname; + } + } + + // -------------------------------------------------------------------- + + /** + * Non-persistent database connection + * + * @param bool $persistent + * @return resource + */ + public function db_connect($persistent = FALSE) + { + return ($persistent === TRUE) + ? odbc_pconnect($this->dsn, $this->username, $this->password) + : odbc_connect($this->dsn, $this->username, $this->password); + } + + // -------------------------------------------------------------------- + + /** + * Compile Bindings + * + * @param string $sql SQL statement + * @param array $binds An array of values to bind + * @return string + */ + public function compile_binds($sql, $binds) + { + if (empty($binds) OR empty($this->bind_marker) OR strpos($sql, $this->bind_marker) === FALSE) + { + return $sql; + } + elseif ( ! is_array($binds)) + { + $binds = array($binds); + $bind_count = 1; + } + else + { + // Make sure we're using numeric keys + $binds = array_values($binds); + $bind_count = count($binds); + } + + // We'll need the marker length later + $ml = strlen($this->bind_marker); + + // Make sure not to replace a chunk inside a string that happens to match the bind marker + if ($c = preg_match_all("/'[^']*'|\"[^\"]*\"/i", $sql, $matches)) + { + $c = preg_match_all('/'.preg_quote($this->bind_marker, '/').'/i', + str_replace($matches[0], + str_replace($this->bind_marker, str_repeat(' ', $ml), $matches[0]), + $sql, $c), + $matches, PREG_OFFSET_CAPTURE); + + // Bind values' count must match the count of markers in the query + if ($bind_count !== $c) + { + return $sql; + } + } + elseif (($c = preg_match_all('/'.preg_quote($this->bind_marker, '/').'/i', $sql, $matches, PREG_OFFSET_CAPTURE)) !== $bind_count) + { + return $sql; + } + + if ($this->bind_marker !== '?') + { + do + { + $c--; + $sql = substr_replace($sql, '?', $matches[0][$c][1], $ml); + } + while ($c !== 0); + } + + if (FALSE !== ($this->odbc_result = odbc_prepare($this->conn_id, $sql))) + { + $this->binds = array_values($binds); + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Execute the query + * + * @param string $sql an SQL query + * @return resource + */ + protected function _execute($sql) + { + if ( ! isset($this->odbc_result)) + { + return odbc_exec($this->conn_id, $sql); + } + elseif ($this->odbc_result === FALSE) + { + return FALSE; + } + + if (TRUE === ($success = odbc_execute($this->odbc_result, $this->binds))) + { + // For queries that return result sets, return the result_id resource on success + $this->is_write_type($sql) OR $success = $this->odbc_result; + } + + $this->odbc_result = NULL; + $this->binds = array(); + + return $success; + } + + // -------------------------------------------------------------------- + + /** + * Begin Transaction + * + * @return bool + */ + protected function _trans_begin() + { + return odbc_autocommit($this->conn_id, FALSE); + } + + // -------------------------------------------------------------------- + + /** + * Commit Transaction + * + * @return bool + */ + protected function _trans_commit() + { + if (odbc_commit($this->conn_id)) + { + odbc_autocommit($this->conn_id, TRUE); + return TRUE; + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Rollback Transaction + * + * @return bool + */ + protected function _trans_rollback() + { + if (odbc_rollback($this->conn_id)) + { + odbc_autocommit($this->conn_id, TRUE); + return TRUE; + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Determines if a query is a "write" type. + * + * @param string An SQL query string + * @return bool + */ + public function is_write_type($sql) + { + if (preg_match('#^(INSERT|UPDATE).*RETURNING\s.+(\,\s?.+)*$#is', $sql)) + { + return FALSE; + } + + return parent::is_write_type($sql); + } + + // -------------------------------------------------------------------- + + /** + * Platform-dependent string escape + * + * @param string + * @return string + */ + protected function _escape_str($str) + { + $this->display_error('db_unsupported_feature'); + } + + // -------------------------------------------------------------------- + + /** + * Affected Rows + * + * @return int + */ + public function affected_rows() + { + return odbc_num_rows($this->result_id); + } + + // -------------------------------------------------------------------- + + /** + * Insert ID + * + * @return bool + */ + public function insert_id() + { + return ($this->db_debug) ? $this->display_error('db_unsupported_feature') : FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = "SELECT table_name FROM information_schema.tables WHERE table_schema = '".$this->schema."'"; + + if ($prefix_limit !== FALSE && $this->dbprefix !== '') + { + return $sql." AND table_name LIKE '".$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + return 'SHOW COLUMNS FROM '.$table; + } + + // -------------------------------------------------------------------- + + /** + * Field data query + * + * Generates a platform-specific query so that the column data can be retrieved + * + * @param string $table + * @return string + */ + protected function _field_data($table) + { + return 'SELECT TOP 1 FROM '.$table; + } + + // -------------------------------------------------------------------- + + /** + * Error + * + * Returns an array containing code and message of the last + * database error that has occurred. + * + * @return array + */ + public function error() + { + return array('code' => odbc_error($this->conn_id), 'message' => odbc_errormsg($this->conn_id)); + } + + // -------------------------------------------------------------------- + + /** + * Close DB Connection + * + * @return void + */ + protected function _close() + { + odbc_close($this->conn_id); + } +} diff --git a/ci/system/database/drivers/odbc/odbc_forge.php b/ci/system/database/drivers/odbc/odbc_forge.php new file mode 100644 index 0000000..115d08a --- /dev/null +++ b/ci/system/database/drivers/odbc/odbc_forge.php @@ -0,0 +1,87 @@ +num_rows)) + { + return $this->num_rows; + } + elseif (($this->num_rows = odbc_num_rows($this->result_id)) !== -1) + { + return $this->num_rows; + } + + // Work-around for ODBC subdrivers that don't support num_rows() + if (count($this->result_array) > 0) + { + return $this->num_rows = count($this->result_array); + } + elseif (count($this->result_object) > 0) + { + return $this->num_rows = count($this->result_object); + } + + return $this->num_rows = count($this->result_array()); + } + + // -------------------------------------------------------------------- + + /** + * Number of fields in the result set + * + * @return int + */ + public function num_fields() + { + return odbc_num_fields($this->result_id); + } + + // -------------------------------------------------------------------- + + /** + * Fetch Field Names + * + * Generates an array of column names + * + * @return array + */ + public function list_fields() + { + $field_names = array(); + $num_fields = $this->num_fields(); + + if ($num_fields > 0) + { + for ($i = 1; $i <= $num_fields; $i++) + { + $field_names[] = odbc_field_name($this->result_id, $i); + } + } + + return $field_names; + } + + // -------------------------------------------------------------------- + + /** + * Field data + * + * Generates an array of objects containing field meta-data + * + * @return array + */ + public function field_data() + { + $retval = array(); + for ($i = 0, $odbc_index = 1, $c = $this->num_fields(); $i < $c; $i++, $odbc_index++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = odbc_field_name($this->result_id, $odbc_index); + $retval[$i]->type = odbc_field_type($this->result_id, $odbc_index); + $retval[$i]->max_length = odbc_field_len($this->result_id, $odbc_index); + $retval[$i]->primary_key = 0; + $retval[$i]->default = ''; + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Free the result + * + * @return void + */ + public function free_result() + { + if (is_resource($this->result_id)) + { + odbc_free_result($this->result_id); + $this->result_id = FALSE; + } + } + + // -------------------------------------------------------------------- + + /** + * Result - associative array + * + * Returns the result set as an array + * + * @return array + */ + protected function _fetch_assoc() + { + return odbc_fetch_array($this->result_id); + } + + // -------------------------------------------------------------------- + + /** + * Result - object + * + * Returns the result set as an object + * + * @param string $class_name + * @return object + */ + protected function _fetch_object($class_name = 'stdClass') + { + $row = odbc_fetch_object($this->result_id); + + if ($class_name === 'stdClass' OR ! $row) + { + return $row; + } + + $class_name = new $class_name(); + foreach ($row as $key => $value) + { + $class_name->$key = $value; + } + + return $class_name; + } + +} + +// -------------------------------------------------------------------- + +if ( ! function_exists('odbc_fetch_array')) +{ + /** + * ODBC Fetch array + * + * Emulates the native odbc_fetch_array() function when + * it is not available (odbc_fetch_array() requires unixODBC) + * + * @param resource &$result + * @param int $rownumber + * @return array + */ + function odbc_fetch_array(&$result, $rownumber = 1) + { + $rs = array(); + if ( ! odbc_fetch_into($result, $rs, $rownumber)) + { + return FALSE; + } + + $rs_assoc = array(); + foreach ($rs as $k => $v) + { + $field_name = odbc_field_name($result, $k+1); + $rs_assoc[$field_name] = $v; + } + + return $rs_assoc; + } +} + +// -------------------------------------------------------------------- + +if ( ! function_exists('odbc_fetch_object')) +{ + /** + * ODBC Fetch object + * + * Emulates the native odbc_fetch_object() function when + * it is not available. + * + * @param resource &$result + * @param int $rownumber + * @return object + */ + function odbc_fetch_object(&$result, $rownumber = 1) + { + $rs = array(); + if ( ! odbc_fetch_into($result, $rs, $rownumber)) + { + return FALSE; + } + + $rs_object = new stdClass(); + foreach ($rs as $k => $v) + { + $field_name = odbc_field_name($result, $k+1); + $rs_object->$field_name = $v; + } + + return $rs_object; + } +} diff --git a/ci/system/database/drivers/odbc/odbc_utility.php b/ci/system/database/drivers/odbc/odbc_utility.php new file mode 100644 index 0000000..a69ed00 --- /dev/null +++ b/ci/system/database/drivers/odbc/odbc_utility.php @@ -0,0 +1,64 @@ +db->display_error('db_unsupported_feature'); + } + +} diff --git a/ci/system/database/drivers/pdo/index.html b/ci/system/database/drivers/pdo/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/system/database/drivers/pdo/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/system/database/drivers/pdo/pdo_driver.php b/ci/system/database/drivers/pdo/pdo_driver.php new file mode 100644 index 0000000..559e865 --- /dev/null +++ b/ci/system/database/drivers/pdo/pdo_driver.php @@ -0,0 +1,351 @@ +dsn, $match) && count($match) === 2) + { + // If there is a minimum valid dsn string pattern found, we're done + // This is for general PDO users, who tend to have a full DSN string. + $this->subdriver = $match[1]; + return; + } + // Legacy support for DSN specified in the hostname field + elseif (preg_match('/([^:]+):/', $this->hostname, $match) && count($match) === 2) + { + $this->dsn = $this->hostname; + $this->hostname = NULL; + $this->subdriver = $match[1]; + return; + } + elseif (in_array($this->subdriver, array('mssql', 'sybase'), TRUE)) + { + $this->subdriver = 'dblib'; + } + elseif ($this->subdriver === '4D') + { + $this->subdriver = '4d'; + } + elseif ( ! in_array($this->subdriver, array('4d', 'cubrid', 'dblib', 'firebird', 'ibm', 'informix', 'mysql', 'oci', 'odbc', 'pgsql', 'sqlite', 'sqlsrv'), TRUE)) + { + log_message('error', 'PDO: Invalid or non-existent subdriver'); + + if ($this->db_debug) + { + show_error('Invalid or non-existent PDO subdriver'); + } + } + + $this->dsn = NULL; + } + + // -------------------------------------------------------------------- + + /** + * Database connection + * + * @param bool $persistent + * @return object + */ + public function db_connect($persistent = FALSE) + { + if ($persistent === TRUE) + { + $this->options[PDO::ATTR_PERSISTENT] = TRUE; + } + + // From PHP8.0, default PDO::ATTR_ERRMODE is changed + // from PDO::ERRMODE_SILENT to PDO::ERRMODE_EXCEPTION + // as https://wiki.php.net/rfc/pdo_default_errmode + if ( ! isset($this->options[PDO::ATTR_ERRMODE])) + { + $this->options[PDO::ATTR_ERRMODE] = PDO::ERRMODE_SILENT; + } + + try + { + return new PDO($this->dsn, $this->username, $this->password, $this->options); + } + catch (PDOException $e) + { + if ($this->db_debug && empty($this->failover)) + { + $this->display_error($e->getMessage(), '', TRUE); + } + + return FALSE; + } + } + + // -------------------------------------------------------------------- + + /** + * Database version number + * + * @return string + */ + public function version() + { + if (isset($this->data_cache['version'])) + { + return $this->data_cache['version']; + } + + // Not all subdrivers support the getAttribute() method + try + { + return $this->data_cache['version'] = $this->conn_id->getAttribute(PDO::ATTR_SERVER_VERSION); + } + catch (PDOException $e) + { + return parent::version(); + } + } + + // -------------------------------------------------------------------- + + /** + * Execute the query + * + * @param string $sql SQL query + * @return mixed + */ + protected function _execute($sql) + { + return $this->conn_id->query($sql); + } + + // -------------------------------------------------------------------- + + /** + * Begin Transaction + * + * @return bool + */ + protected function _trans_begin() + { + return $this->conn_id->beginTransaction(); + } + + // -------------------------------------------------------------------- + + /** + * Commit Transaction + * + * @return bool + */ + protected function _trans_commit() + { + return $this->conn_id->commit(); + } + + // -------------------------------------------------------------------- + + /** + * Rollback Transaction + * + * @return bool + */ + protected function _trans_rollback() + { + return $this->conn_id->rollBack(); + } + + // -------------------------------------------------------------------- + + /** + * Platform-dependent string escape + * + * @param string + * @return string + */ + protected function _escape_str($str) + { + // Escape the string + $str = $this->conn_id->quote($str); + + // If there are duplicated quotes, trim them away + return ($str[0] === "'") + ? substr($str, 1, -1) + : $str; + } + + // -------------------------------------------------------------------- + + /** + * Affected Rows + * + * @return int + */ + public function affected_rows() + { + return is_object($this->result_id) ? $this->result_id->rowCount() : 0; + } + + // -------------------------------------------------------------------- + + /** + * Insert ID + * + * @param string $name + * @return int + */ + public function insert_id($name = NULL) + { + return $this->conn_id->lastInsertId($name); + } + + // -------------------------------------------------------------------- + + /** + * Field data query + * + * Generates a platform-specific query so that the column data can be retrieved + * + * @param string $table + * @return string + */ + protected function _field_data($table) + { + return 'SELECT TOP 1 * FROM '.$this->protect_identifiers($table); + } + + // -------------------------------------------------------------------- + + /** + * Error + * + * Returns an array containing code and message of the last + * database error that has occurred. + * + * @return array + */ + public function error() + { + $error = array('code' => '00000', 'message' => ''); + $pdo_error = $this->conn_id->errorInfo(); + + if (empty($pdo_error[0])) + { + return $error; + } + + $error['code'] = isset($pdo_error[1]) ? $pdo_error[0].'/'.$pdo_error[1] : $pdo_error[0]; + if (isset($pdo_error[2])) + { + $error['message'] = $pdo_error[2]; + } + + return $error; + } + + // -------------------------------------------------------------------- + + /** + * Truncate statement + * + * Generates a platform-specific truncate string from the supplied data + * + * If the database does not support the TRUNCATE statement, + * then this method maps to 'DELETE FROM table' + * + * @param string $table + * @return string + */ + protected function _truncate($table) + { + return 'TRUNCATE TABLE '.$table; + } + + // -------------------------------------------------------------------- + + /** + * Close DB Connection + * + * @return void + */ + protected function _close() + { + $this->result_id = FALSE; + $this->conn_id = FALSE; + } + +} diff --git a/ci/system/database/drivers/pdo/pdo_forge.php b/ci/system/database/drivers/pdo/pdo_forge.php new file mode 100644 index 0000000..b35ff67 --- /dev/null +++ b/ci/system/database/drivers/pdo/pdo_forge.php @@ -0,0 +1,66 @@ +num_rows)) + { + return $this->num_rows; + } + elseif (count($this->result_array) > 0) + { + return $this->num_rows = count($this->result_array); + } + elseif (count($this->result_object) > 0) + { + return $this->num_rows = count($this->result_object); + } + elseif (($num_rows = $this->result_id->rowCount()) > 0) + { + return $this->num_rows = $num_rows; + } + + return $this->num_rows = count($this->result_array()); + } + + // -------------------------------------------------------------------- + + /** + * Number of fields in the result set + * + * @return int + */ + public function num_fields() + { + return $this->result_id->columnCount(); + } + + // -------------------------------------------------------------------- + + /** + * Fetch Field Names + * + * Generates an array of column names + * + * @return bool + */ + public function list_fields() + { + $field_names = array(); + for ($i = 0, $c = $this->num_fields(); $i < $c; $i++) + { + // Might trigger an E_WARNING due to not all subdrivers + // supporting getColumnMeta() + $field_names[$i] = @$this->result_id->getColumnMeta($i); + $field_names[$i] = $field_names[$i]['name']; + } + + return $field_names; + } + + // -------------------------------------------------------------------- + + /** + * Field data + * + * Generates an array of objects containing field meta-data + * + * @return array + */ + public function field_data() + { + try + { + $retval = array(); + + for ($i = 0, $c = $this->num_fields(); $i < $c; $i++) + { + $field = $this->result_id->getColumnMeta($i); + + $retval[$i] = new stdClass(); + $retval[$i]->name = $field['name']; + $retval[$i]->type = isset($field['native_type']) ? $field['native_type'] : null; + $retval[$i]->max_length = ($field['len'] > 0) ? $field['len'] : NULL; + $retval[$i]->primary_key = (int) ( ! empty($field['flags']) && in_array('primary_key', $field['flags'], TRUE)); + } + + return $retval; + } + catch (Exception $e) + { + if ($this->db->db_debug) + { + return $this->db->display_error('db_unsupported_feature'); + } + + return FALSE; + } + } + + // -------------------------------------------------------------------- + + /** + * Free the result + * + * @return void + */ + public function free_result() + { + if (is_object($this->result_id)) + { + $this->result_id = FALSE; + } + } + + // -------------------------------------------------------------------- + + /** + * Result - associative array + * + * Returns the result set as an array + * + * @return array + */ + protected function _fetch_assoc() + { + return $this->result_id->fetch(PDO::FETCH_ASSOC); + } + + // -------------------------------------------------------------------- + + /** + * Result - object + * + * Returns the result set as an object + * + * @param string $class_name + * @return object + */ + protected function _fetch_object($class_name = 'stdClass') + { + return $this->result_id->fetchObject($class_name); + } + +} diff --git a/ci/system/database/drivers/pdo/pdo_utility.php b/ci/system/database/drivers/pdo/pdo_utility.php new file mode 100644 index 0000000..2094ef4 --- /dev/null +++ b/ci/system/database/drivers/pdo/pdo_utility.php @@ -0,0 +1,64 @@ +db->display_error('db_unsupported_feature'); + } + +} diff --git a/ci/system/database/drivers/pdo/subdrivers/index.html b/ci/system/database/drivers/pdo/subdrivers/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/system/database/drivers/pdo/subdrivers/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/system/database/drivers/pdo/subdrivers/pdo_4d_driver.php b/ci/system/database/drivers/pdo/subdrivers/pdo_4d_driver.php new file mode 100644 index 0000000..8d5b2f6 --- /dev/null +++ b/ci/system/database/drivers/pdo/subdrivers/pdo_4d_driver.php @@ -0,0 +1,201 @@ +dsn)) + { + $this->dsn = '4D:host='.(empty($this->hostname) ? '127.0.0.1' : $this->hostname); + + empty($this->port) OR $this->dsn .= ';port='.$this->port; + empty($this->database) OR $this->dsn .= ';dbname='.$this->database; + empty($this->char_set) OR $this->dsn .= ';charset='.$this->char_set; + } + elseif ( ! empty($this->char_set) && strpos($this->dsn, 'charset=', 3) === FALSE) + { + $this->dsn .= ';charset='.$this->char_set; + } + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SELECT '.$this->escape_identifiers('TABLE_NAME').' FROM '.$this->escape_identifiers('_USER_TABLES'); + + if ($prefix_limit === TRUE && $this->dbprefix !== '') + { + $sql .= ' WHERE '.$this->escape_identifiers('TABLE_NAME')." LIKE '".$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + return 'SELECT '.$this->escape_identifiers('COLUMN_NAME').' FROM '.$this->escape_identifiers('_USER_COLUMNS') + .' WHERE '.$this->escape_identifiers('TABLE_NAME').' = '.$this->escape($table); + } + + // -------------------------------------------------------------------- + + /** + * Field data query + * + * Generates a platform-specific query so that the column data can be retrieved + * + * @param string $table + * @return string + */ + protected function _field_data($table) + { + return 'SELECT * FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE).' LIMIT 1'; + } + + // -------------------------------------------------------------------- + + /** + * Update statement + * + * Generates a platform-specific update string from the supplied data + * + * @param string $table + * @param array $values + * @return string + */ + protected function _update($table, $values) + { + $this->qb_limit = FALSE; + $this->qb_orderby = array(); + return parent::_update($table, $values); + } + + // -------------------------------------------------------------------- + + /** + * Delete statement + * + * Generates a platform-specific delete string from the supplied data + * + * @param string $table + * @return string + */ + protected function _delete($table) + { + $this->qb_limit = FALSE; + return parent::_delete($table); + } + + // -------------------------------------------------------------------- + + /** + * LIMIT + * + * Generates a platform-specific LIMIT clause + * + * @param string $sql SQL Query + * @return string + */ + protected function _limit($sql) + { + return $sql.' LIMIT '.$this->qb_limit.($this->qb_offset ? ' OFFSET '.$this->qb_offset : ''); + } + +} diff --git a/ci/system/database/drivers/pdo/subdrivers/pdo_4d_forge.php b/ci/system/database/drivers/pdo/subdrivers/pdo_4d_forge.php new file mode 100644 index 0000000..28fc008 --- /dev/null +++ b/ci/system/database/drivers/pdo/subdrivers/pdo_4d_forge.php @@ -0,0 +1,218 @@ + 'INT', + 'SMALLINT' => 'INT', + 'INT' => 'INT64', + 'INT32' => 'INT64' + ); + + /** + * DEFAULT value representation in CREATE/ALTER TABLE statements + * + * @var string + */ + protected $_default = FALSE; + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if (in_array($alter_type, array('ADD', 'DROP'), TRUE)) + { + return parent::_alter_table($alter_type, $table, $field); + } + + // No method of modifying columns is supported + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Process column + * + * @param array $field + * @return string + */ + protected function _process_column($field) + { + return $this->db->escape_identifiers($field['name']) + .' '.$field['type'].$field['length'] + .$field['null'] + .$field['unique'] + .$field['auto_increment']; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'TINYINT': + $attributes['TYPE'] = 'SMALLINT'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'INTEGER': + $attributes['TYPE'] = 'INT'; + return; + case 'BIGINT': + $attributes['TYPE'] = 'INT64'; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute UNIQUE + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_unique(&$attributes, &$field) + { + if ( ! empty($attributes['UNIQUE']) && $attributes['UNIQUE'] === TRUE) + { + $field['unique'] = ' UNIQUE'; + + // UNIQUE must be used with NOT NULL + $field['null'] = ' NOT NULL'; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE) + { + if (stripos($field['type'], 'int') !== FALSE) + { + $field['auto_increment'] = ' AUTO_INCREMENT'; + } + elseif (strcasecmp($field['type'], 'UUID') === 0) + { + $field['auto_increment'] = ' AUTO_GENERATE'; + } + } + } + +} diff --git a/ci/system/database/drivers/pdo/subdrivers/pdo_cubrid_driver.php b/ci/system/database/drivers/pdo/subdrivers/pdo_cubrid_driver.php new file mode 100644 index 0000000..c8f9258 --- /dev/null +++ b/ci/system/database/drivers/pdo/subdrivers/pdo_cubrid_driver.php @@ -0,0 +1,210 @@ +dsn)) + { + $this->dsn = 'cubrid:host='.(empty($this->hostname) ? '127.0.0.1' : $this->hostname); + + empty($this->port) OR $this->dsn .= ';port='.$this->port; + empty($this->database) OR $this->dsn .= ';dbname='.$this->database; + empty($this->char_set) OR $this->dsn .= ';charset='.$this->char_set; + } + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SHOW TABLES'; + + if ($prefix_limit === TRUE && $this->dbprefix !== '') + { + return $sql." LIKE '".$this->escape_like_str($this->dbprefix)."%'"; + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + return 'SHOW COLUMNS FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + if (($query = $this->query('SHOW COLUMNS FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE))) === FALSE) + { + return FALSE; + } + $query = $query->result_object(); + + $retval = array(); + for ($i = 0, $c = count($query); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $query[$i]->Field; + + sscanf($query[$i]->Type, '%[a-z](%d)', + $retval[$i]->type, + $retval[$i]->max_length + ); + + $retval[$i]->default = $query[$i]->Default; + $retval[$i]->primary_key = (int) ($query[$i]->Key === 'PRI'); + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Truncate statement + * + * Generates a platform-specific truncate string from the supplied data + * + * If the database does not support the TRUNCATE statement, + * then this method maps to 'DELETE FROM table' + * + * @param string $table + * @return string + */ + protected function _truncate($table) + { + return 'TRUNCATE '.$table; + } + + // -------------------------------------------------------------------- + + /** + * FROM tables + * + * Groups tables in FROM clauses if needed, so there is no confusion + * about operator precedence. + * + * @return string + */ + protected function _from_tables() + { + if ( ! empty($this->qb_join) && count($this->qb_from) > 1) + { + return '('.implode(', ', $this->qb_from).')'; + } + + return implode(', ', $this->qb_from); + } + +} diff --git a/ci/system/database/drivers/pdo/subdrivers/pdo_cubrid_forge.php b/ci/system/database/drivers/pdo/subdrivers/pdo_cubrid_forge.php new file mode 100644 index 0000000..de02983 --- /dev/null +++ b/ci/system/database/drivers/pdo/subdrivers/pdo_cubrid_forge.php @@ -0,0 +1,231 @@ + 'INTEGER', + 'SMALLINT' => 'INTEGER', + 'INT' => 'BIGINT', + 'INTEGER' => 'BIGINT', + 'BIGINT' => 'NUMERIC', + 'FLOAT' => 'DOUBLE', + 'REAL' => 'DOUBLE' + ); + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if (in_array($alter_type, array('DROP', 'ADD'), TRUE)) + { + return parent::_alter_table($alter_type, $table, $field); + } + + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table); + $sqls = array(); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + if ($field[$i]['_literal'] !== FALSE) + { + $sqls[] = $sql.' CHANGE '.$field[$i]['_literal']; + } + else + { + $alter_type = empty($field[$i]['new_name']) ? ' MODIFY ' : ' CHANGE '; + $sqls[] = $sql.$alter_type.$this->_process_column($field[$i]); + } + } + + return $sqls; + } + + // -------------------------------------------------------------------- + + /** + * Process column + * + * @param array $field + * @return string + */ + protected function _process_column($field) + { + $extra_clause = isset($field['after']) + ? ' AFTER '.$this->db->escape_identifiers($field['after']) : ''; + + if (empty($extra_clause) && isset($field['first']) && $field['first'] === TRUE) + { + $extra_clause = ' FIRST'; + } + + return $this->db->escape_identifiers($field['name']) + .(empty($field['new_name']) ? '' : ' '.$this->db->escape_identifiers($field['new_name'])) + .' '.$field['type'].$field['length'] + .$field['unsigned'] + .$field['null'] + .$field['default'] + .$field['auto_increment'] + .$field['unique'] + .$extra_clause; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'TINYINT': + $attributes['TYPE'] = 'SMALLINT'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'LONGTEXT': + $attributes['TYPE'] = 'STRING'; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Process indexes + * + * @param string $table (ignored) + * @return string + */ + protected function _process_indexes($table) + { + $sql = ''; + + for ($i = 0, $c = count($this->keys); $i < $c; $i++) + { + if (is_array($this->keys[$i])) + { + for ($i2 = 0, $c2 = count($this->keys[$i]); $i2 < $c2; $i2++) + { + if ( ! isset($this->fields[$this->keys[$i][$i2]])) + { + unset($this->keys[$i][$i2]); + continue; + } + } + } + elseif ( ! isset($this->fields[$this->keys[$i]])) + { + unset($this->keys[$i]); + continue; + } + + is_array($this->keys[$i]) OR $this->keys[$i] = array($this->keys[$i]); + + $sql .= ",\n\tKEY ".$this->db->escape_identifiers(implode('_', $this->keys[$i])) + .' ('.implode(', ', $this->db->escape_identifiers($this->keys[$i])).')'; + } + + $this->keys = array(); + + return $sql; + } + +} diff --git a/ci/system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php b/ci/system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php new file mode 100644 index 0000000..7d8d4a2 --- /dev/null +++ b/ci/system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php @@ -0,0 +1,354 @@ +dsn)) + { + $this->dsn = $params['subdriver'].':host='.(empty($this->hostname) ? '127.0.0.1' : $this->hostname); + + if ( ! empty($this->port)) + { + $this->dsn .= (DIRECTORY_SEPARATOR === '\\' ? ',' : ':').$this->port; + } + + empty($this->database) OR $this->dsn .= ';dbname='.$this->database; + empty($this->char_set) OR $this->dsn .= ';charset='.$this->char_set; + empty($this->appname) OR $this->dsn .= ';appname='.$this->appname; + } + else + { + if ( ! empty($this->char_set) && strpos($this->dsn, 'charset=', 6) === FALSE) + { + $this->dsn .= ';charset='.$this->char_set; + } + + $this->subdriver = 'dblib'; + } + } + + // -------------------------------------------------------------------- + + /** + * Database connection + * + * @param bool $persistent + * @return object + */ + public function db_connect($persistent = FALSE) + { + if ($persistent === TRUE) + { + log_message('debug', "dblib driver doesn't support persistent connections"); + } + + $this->conn_id = parent::db_connect(FALSE); + + if ( ! is_object($this->conn_id)) + { + return $this->conn_id; + } + + // Determine how identifiers are escaped + $query = $this->query('SELECT CASE WHEN (@@OPTIONS | 256) = @@OPTIONS THEN 1 ELSE 0 END AS qi'); + $query = $query->row_array(); + $this->_quoted_identifier = empty($query) ? FALSE : (bool) $query['qi']; + $this->_escape_char = ($this->_quoted_identifier) ? '"' : array('[', ']'); + + return $this->conn_id; + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SELECT '.$this->escape_identifiers('name') + .' FROM '.$this->escape_identifiers('sysobjects') + .' WHERE '.$this->escape_identifiers('type')." = 'U'"; + + if ($prefix_limit === TRUE && $this->dbprefix !== '') + { + $sql .= ' AND '.$this->escape_identifiers('name')." LIKE '".$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + return $sql.' ORDER BY '.$this->escape_identifiers('name'); + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + return 'SELECT COLUMN_NAME + FROM INFORMATION_SCHEMA.Columns + WHERE UPPER(TABLE_NAME) = '.$this->escape(strtoupper($table)); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + $sql = 'SELECT COLUMN_NAME, DATA_TYPE, CHARACTER_MAXIMUM_LENGTH, NUMERIC_PRECISION, COLUMN_DEFAULT + FROM INFORMATION_SCHEMA.Columns + WHERE UPPER(TABLE_NAME) = '.$this->escape(strtoupper($table)); + + if (($query = $this->query($sql)) === FALSE) + { + return FALSE; + } + $query = $query->result_object(); + + $retval = array(); + for ($i = 0, $c = count($query); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $query[$i]->COLUMN_NAME; + $retval[$i]->type = $query[$i]->DATA_TYPE; + $retval[$i]->max_length = ($query[$i]->CHARACTER_MAXIMUM_LENGTH > 0) ? $query[$i]->CHARACTER_MAXIMUM_LENGTH : $query[$i]->NUMERIC_PRECISION; + $retval[$i]->default = $query[$i]->COLUMN_DEFAULT; + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Update statement + * + * Generates a platform-specific update string from the supplied data + * + * @param string $table + * @param array $values + * @return string + */ + protected function _update($table, $values) + { + $this->qb_limit = FALSE; + $this->qb_orderby = array(); + return parent::_update($table, $values); + } + + // -------------------------------------------------------------------- + + /** + * Delete statement + * + * Generates a platform-specific delete string from the supplied data + * + * @param string $table + * @return string + */ + protected function _delete($table) + { + if ($this->qb_limit) + { + return 'WITH ci_delete AS (SELECT TOP '.$this->qb_limit.' * FROM '.$table.$this->_compile_wh('qb_where').') DELETE FROM ci_delete'; + } + + return parent::_delete($table); + } + + // -------------------------------------------------------------------- + + /** + * LIMIT + * + * Generates a platform-specific LIMIT clause + * + * @param string $sql SQL Query + * @return string + */ + protected function _limit($sql) + { + $limit = $this->qb_offset + $this->qb_limit; + + // As of SQL Server 2005 (9.0.*) ROW_NUMBER() is supported, + // however an ORDER BY clause is required for it to work + if (version_compare($this->version(), '9', '>=') && $this->qb_offset && ! empty($this->qb_orderby)) + { + $orderby = $this->_compile_order_by(); + + // We have to strip the ORDER BY clause + $sql = trim(substr($sql, 0, strrpos($sql, $orderby))); + + // Get the fields to select from our subquery, so that we can avoid CI_rownum appearing in the actual results + if (count($this->qb_select) === 0 OR strpos(implode(',', $this->qb_select), '*') !== FALSE) + { + $select = '*'; // Inevitable + } + else + { + // Use only field names and their aliases, everything else is out of our scope. + $select = array(); + $field_regexp = ($this->_quoted_identifier) + ? '("[^\"]+")' : '(\[[^\]]+\])'; + for ($i = 0, $c = count($this->qb_select); $i < $c; $i++) + { + $select[] = preg_match('/(?:\s|\.)'.$field_regexp.'$/i', $this->qb_select[$i], $m) + ? $m[1] : $this->qb_select[$i]; + } + $select = implode(', ', $select); + } + + return 'SELECT '.$select." FROM (\n\n" + .preg_replace('/^(SELECT( DISTINCT)?)/i', '\\1 ROW_NUMBER() OVER('.trim($orderby).') AS '.$this->escape_identifiers('CI_rownum').', ', $sql) + ."\n\n) ".$this->escape_identifiers('CI_subquery') + ."\nWHERE ".$this->escape_identifiers('CI_rownum').' BETWEEN '.($this->qb_offset + 1).' AND '.$limit; + } + + return preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.$limit.' ', $sql); + } + + // -------------------------------------------------------------------- + + /** + * Insert batch statement + * + * Generates a platform-specific insert string from the supplied data. + * + * @param string $table Table name + * @param array $keys INSERT keys + * @param array $values INSERT values + * @return string|bool + */ + protected function _insert_batch($table, $keys, $values) + { + // Multiple-value inserts are only supported as of SQL Server 2008 + if (version_compare($this->version(), '10', '>=')) + { + return parent::_insert_batch($table, $keys, $values); + } + + return ($this->db_debug) ? $this->display_error('db_unsupported_feature') : FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Database version number + * + * @return string + */ + public function version() + { + if (isset($this->data_cache['version'])) + { + return $this->data_cache['version']; + } + + return $this->data_cache['version'] = $this->conn_id->query("SELECT SERVERPROPERTY('ProductVersion') AS ver")->fetchColumn(0); + } +} diff --git a/ci/system/database/drivers/pdo/subdrivers/pdo_dblib_forge.php b/ci/system/database/drivers/pdo/subdrivers/pdo_dblib_forge.php new file mode 100644 index 0000000..3ee352f --- /dev/null +++ b/ci/system/database/drivers/pdo/subdrivers/pdo_dblib_forge.php @@ -0,0 +1,150 @@ + 'SMALLINT', + 'SMALLINT' => 'INT', + 'INT' => 'BIGINT', + 'REAL' => 'FLOAT' + ); + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if (in_array($alter_type, array('ADD', 'DROP'), TRUE)) + { + return parent::_alter_table($alter_type, $table, $field); + } + + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table).' ALTER COLUMN '; + $sqls = array(); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + $sqls[] = $sql.$this->_process_column($field[$i]); + } + + return $sqls; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + if (isset($attributes['CONSTRAINT']) && strpos($attributes['TYPE'], 'INT') !== FALSE) + { + unset($attributes['CONSTRAINT']); + } + + switch (strtoupper($attributes['TYPE'])) + { + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'INTEGER': + $attributes['TYPE'] = 'INT'; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE && stripos($field['type'], 'int') !== FALSE) + { + $field['auto_increment'] = ' IDENTITY(1,1)'; + } + } + +} diff --git a/ci/system/database/drivers/pdo/subdrivers/pdo_firebird_driver.php b/ci/system/database/drivers/pdo/subdrivers/pdo_firebird_driver.php new file mode 100644 index 0000000..9778250 --- /dev/null +++ b/ci/system/database/drivers/pdo/subdrivers/pdo_firebird_driver.php @@ -0,0 +1,280 @@ +dsn)) + { + $this->dsn = 'firebird:'; + + if ( ! empty($this->database)) + { + $this->dsn .= 'dbname='.$this->database; + } + elseif ( ! empty($this->hostname)) + { + $this->dsn .= 'dbname='.$this->hostname; + } + + empty($this->char_set) OR $this->dsn .= ';charset='.$this->char_set; + empty($this->role) OR $this->dsn .= ';role='.$this->role; + } + elseif ( ! empty($this->char_set) && strpos($this->dsn, 'charset=', 9) === FALSE) + { + $this->dsn .= ';charset='.$this->char_set; + } + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SELECT "RDB$RELATION_NAME" FROM "RDB$RELATIONS" WHERE "RDB$RELATION_NAME" NOT LIKE \'RDB$%\' AND "RDB$RELATION_NAME" NOT LIKE \'MON$%\''; + + if ($prefix_limit === TRUE && $this->dbprefix !== '') + { + return $sql.' AND "RDB$RELATION_NAME" LIKE \''.$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + return 'SELECT "RDB$FIELD_NAME" FROM "RDB$RELATION_FIELDS" WHERE "RDB$RELATION_NAME" = '.$this->escape($table); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + $sql = 'SELECT "rfields"."RDB$FIELD_NAME" AS "name", + CASE "fields"."RDB$FIELD_TYPE" + WHEN 7 THEN \'SMALLINT\' + WHEN 8 THEN \'INTEGER\' + WHEN 9 THEN \'QUAD\' + WHEN 10 THEN \'FLOAT\' + WHEN 11 THEN \'DFLOAT\' + WHEN 12 THEN \'DATE\' + WHEN 13 THEN \'TIME\' + WHEN 14 THEN \'CHAR\' + WHEN 16 THEN \'INT64\' + WHEN 27 THEN \'DOUBLE\' + WHEN 35 THEN \'TIMESTAMP\' + WHEN 37 THEN \'VARCHAR\' + WHEN 40 THEN \'CSTRING\' + WHEN 261 THEN \'BLOB\' + ELSE NULL + END AS "type", + "fields"."RDB$FIELD_LENGTH" AS "max_length", + "rfields"."RDB$DEFAULT_VALUE" AS "default" + FROM "RDB$RELATION_FIELDS" "rfields" + JOIN "RDB$FIELDS" "fields" ON "rfields"."RDB$FIELD_SOURCE" = "fields"."RDB$FIELD_NAME" + WHERE "rfields"."RDB$RELATION_NAME" = '.$this->escape($table).' + ORDER BY "rfields"."RDB$FIELD_POSITION"'; + + return (($query = $this->query($sql)) !== FALSE) + ? $query->result_object() + : FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Update statement + * + * Generates a platform-specific update string from the supplied data + * + * @param string $table + * @param array $values + * @return string + */ + protected function _update($table, $values) + { + $this->qb_limit = FALSE; + return parent::_update($table, $values); + } + + // -------------------------------------------------------------------- + + /** + * Truncate statement + * + * Generates a platform-specific truncate string from the supplied data + * + * If the database does not support the TRUNCATE statement, + * then this method maps to 'DELETE FROM table' + * + * @param string $table + * @return string + */ + protected function _truncate($table) + { + return 'DELETE FROM '.$table; + } + + // -------------------------------------------------------------------- + + /** + * Delete statement + * + * Generates a platform-specific delete string from the supplied data + * + * @param string $table + * @return string + */ + protected function _delete($table) + { + $this->qb_limit = FALSE; + return parent::_delete($table); + } + + // -------------------------------------------------------------------- + + /** + * LIMIT + * + * Generates a platform-specific LIMIT clause + * + * @param string $sql SQL Query + * @return string + */ + protected function _limit($sql) + { + // Limit clause depends on if Interbase or Firebird + if (stripos($this->version(), 'firebird') !== FALSE) + { + $select = 'FIRST '.$this->qb_limit + .($this->qb_offset > 0 ? ' SKIP '.$this->qb_offset : ''); + } + else + { + $select = 'ROWS ' + .($this->qb_offset > 0 ? $this->qb_offset.' TO '.($this->qb_limit + $this->qb_offset) : $this->qb_limit); + } + + return preg_replace('`SELECT`i', 'SELECT '.$select, $sql); + } + + // -------------------------------------------------------------------- + + /** + * Insert batch statement + * + * Generates a platform-specific insert string from the supplied data. + * + * @param string $table Table name + * @param array $keys INSERT keys + * @param array $values INSERT values + * @return string|bool + */ + protected function _insert_batch($table, $keys, $values) + { + return ($this->db_debug) ? $this->display_error('db_unsupported_feature') : FALSE; + } +} diff --git a/ci/system/database/drivers/pdo/subdrivers/pdo_firebird_forge.php b/ci/system/database/drivers/pdo/subdrivers/pdo_firebird_forge.php new file mode 100644 index 0000000..26e052a --- /dev/null +++ b/ci/system/database/drivers/pdo/subdrivers/pdo_firebird_forge.php @@ -0,0 +1,238 @@ + 'INTEGER', + 'INTEGER' => 'INT64', + 'FLOAT' => 'DOUBLE PRECISION' + ); + + /** + * NULL value representation in CREATE/ALTER TABLE statements + * + * @var string + */ + protected $_null = 'NULL'; + + // -------------------------------------------------------------------- + + /** + * Create database + * + * @param string $db_name + * @return string + */ + public function create_database($db_name) + { + // Firebird databases are flat files, so a path is required + + // Hostname is needed for remote access + empty($this->db->hostname) OR $db_name = $this->hostname.':'.$db_name; + + return parent::create_database('"'.$db_name.'"'); + } + + // -------------------------------------------------------------------- + + /** + * Drop database + * + * @param string $db_name (ignored) + * @return bool + */ + public function drop_database($db_name) + { + if ( ! ibase_drop_db($this->conn_id)) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unable_to_drop') : FALSE; + } + elseif ( ! empty($this->db->data_cache['db_names'])) + { + $key = array_search(strtolower($this->db->database), array_map('strtolower', $this->db->data_cache['db_names']), TRUE); + if ($key !== FALSE) + { + unset($this->db->data_cache['db_names'][$key]); + } + } + + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if (in_array($alter_type, array('DROP', 'ADD'), TRUE)) + { + return parent::_alter_table($alter_type, $table, $field); + } + + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table); + $sqls = array(); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + if ($field[$i]['_literal'] !== FALSE) + { + return FALSE; + } + + if (isset($field[$i]['type'])) + { + $sqls[] = $sql.' ALTER COLUMN '.$this->db->escape_identifiers($field[$i]['name']) + .' TYPE '.$field[$i]['type'].$field[$i]['length']; + } + + if ( ! empty($field[$i]['default'])) + { + $sqls[] = $sql.' ALTER COLUMN '.$this->db->escape_identifiers($field[$i]['name']) + .' SET '.$field[$i]['default']; + } + + if (isset($field[$i]['null'])) + { + $sqls[] = 'UPDATE "RDB$RELATION_FIELDS" SET "RDB$NULL_FLAG" = ' + .($field[$i]['null'] === TRUE ? 'NULL' : '1') + .' WHERE "RDB$FIELD_NAME" = '.$this->db->escape($field[$i]['name']) + .' AND "RDB$RELATION_NAME" = '.$this->db->escape($table); + } + + if ( ! empty($field[$i]['new_name'])) + { + $sqls[] = $sql.' ALTER COLUMN '.$this->db->escape_identifiers($field[$i]['name']) + .' TO '.$this->db->escape_identifiers($field[$i]['new_name']); + } + } + + return $sqls; + } + + // -------------------------------------------------------------------- + + /** + * Process column + * + * @param array $field + * @return string + */ + protected function _process_column($field) + { + return $this->db->escape_identifiers($field['name']) + .' '.$field['type'].$field['length'] + .$field['null'] + .$field['unique'] + .$field['default']; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'TINYINT': + $attributes['TYPE'] = 'SMALLINT'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'INT': + $attributes['TYPE'] = 'INTEGER'; + return; + case 'BIGINT': + $attributes['TYPE'] = 'INT64'; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + // Not supported + } + +} diff --git a/ci/system/database/drivers/pdo/subdrivers/pdo_ibm_driver.php b/ci/system/database/drivers/pdo/subdrivers/pdo_ibm_driver.php new file mode 100644 index 0000000..aca58ec --- /dev/null +++ b/ci/system/database/drivers/pdo/subdrivers/pdo_ibm_driver.php @@ -0,0 +1,245 @@ +dsn)) + { + $this->dsn = 'ibm:'; + + // Pre-defined DSN + if (empty($this->hostname) && empty($this->HOSTNAME) && empty($this->port) && empty($this->PORT)) + { + if (isset($this->DSN)) + { + $this->dsn .= 'DSN='.$this->DSN; + } + elseif ( ! empty($this->database)) + { + $this->dsn .= 'DSN='.$this->database; + } + + return; + } + + $this->dsn .= 'DRIVER='.(isset($this->DRIVER) ? '{'.$this->DRIVER.'}' : '{IBM DB2 ODBC DRIVER}').';'; + + if (isset($this->DATABASE)) + { + $this->dsn .= 'DATABASE='.$this->DATABASE.';'; + } + elseif ( ! empty($this->database)) + { + $this->dsn .= 'DATABASE='.$this->database.';'; + } + + if (isset($this->HOSTNAME)) + { + $this->dsn .= 'HOSTNAME='.$this->HOSTNAME.';'; + } + else + { + $this->dsn .= 'HOSTNAME='.(empty($this->hostname) ? '127.0.0.1;' : $this->hostname.';'); + } + + if (isset($this->PORT)) + { + $this->dsn .= 'PORT='.$this->port.';'; + } + elseif ( ! empty($this->port)) + { + $this->dsn .= ';PORT='.$this->port.';'; + } + + $this->dsn .= 'PROTOCOL='.(isset($this->PROTOCOL) ? $this->PROTOCOL.';' : 'TCPIP;'); + } + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SELECT "tabname" FROM "syscat"."tables" + WHERE "type" = \'T\' AND LOWER("tabschema") = '.$this->escape(strtolower($this->database)); + + if ($prefix_limit === TRUE && $this->dbprefix !== '') + { + $sql .= ' AND "tabname" LIKE \''.$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return array + */ + protected function _list_columns($table = '') + { + return 'SELECT "colname" FROM "syscat"."columns" + WHERE LOWER("tabschema") = '.$this->escape(strtolower($this->database)).' + AND LOWER("tabname") = '.$this->escape(strtolower($table)); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + $sql = 'SELECT "colname" AS "name", "typename" AS "type", "default" AS "default", "length" AS "max_length", + CASE "keyseq" WHEN NULL THEN 0 ELSE 1 END AS "primary_key" + FROM "syscat"."columns" + WHERE LOWER("tabschema") = '.$this->escape(strtolower($this->database)).' + AND LOWER("tabname") = '.$this->escape(strtolower($table)).' + ORDER BY "colno"'; + + return (($query = $this->query($sql)) !== FALSE) + ? $query->result_object() + : FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Update statement + * + * Generates a platform-specific update string from the supplied data + * + * @param string $table + * @param array $values + * @return string + */ + protected function _update($table, $values) + { + $this->qb_limit = FALSE; + $this->qb_orderby = array(); + return parent::_update($table, $values); + } + + // -------------------------------------------------------------------- + + /** + * Delete statement + * + * Generates a platform-specific delete string from the supplied data + * + * @param string $table + * @return string + */ + protected function _delete($table) + { + $this->qb_limit = FALSE; + return parent::_delete($table); + } + + // -------------------------------------------------------------------- + + /** + * LIMIT + * + * Generates a platform-specific LIMIT clause + * + * @param string $sql SQL Query + * @return string + */ + protected function _limit($sql) + { + $sql .= ' FETCH FIRST '.($this->qb_limit + $this->qb_offset).' ROWS ONLY'; + + return ($this->qb_offset) + ? 'SELECT * FROM ('.$sql.') WHERE rownum > '.$this->qb_offset + : $sql; + } + +} diff --git a/ci/system/database/drivers/pdo/subdrivers/pdo_ibm_forge.php b/ci/system/database/drivers/pdo/subdrivers/pdo_ibm_forge.php new file mode 100644 index 0000000..cf023d4 --- /dev/null +++ b/ci/system/database/drivers/pdo/subdrivers/pdo_ibm_forge.php @@ -0,0 +1,155 @@ + 'INTEGER', + 'INT' => 'BIGINT', + 'INTEGER' => 'BIGINT' + ); + + /** + * DEFAULT value representation in CREATE/ALTER TABLE statements + * + * @var string + */ + protected $_default = FALSE; + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if ($alter_type === 'CHANGE') + { + $alter_type = 'MODIFY'; + } + + return parent::_alter_table($alter_type, $table, $field); + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'TINYINT': + $attributes['TYPE'] = 'SMALLINT'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute UNIQUE + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_unique(&$attributes, &$field) + { + if ( ! empty($attributes['UNIQUE']) && $attributes['UNIQUE'] === TRUE) + { + $field['unique'] = ' UNIQUE'; + + // UNIQUE must be used with NOT NULL + $field['null'] = ' NOT NULL'; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + // Not supported + } + +} diff --git a/ci/system/database/drivers/pdo/subdrivers/pdo_informix_driver.php b/ci/system/database/drivers/pdo/subdrivers/pdo_informix_driver.php new file mode 100644 index 0000000..4d230c3 --- /dev/null +++ b/ci/system/database/drivers/pdo/subdrivers/pdo_informix_driver.php @@ -0,0 +1,310 @@ +dsn)) + { + $this->dsn = 'informix:'; + + // Pre-defined DSN + if (empty($this->hostname) && empty($this->host) && empty($this->port) && empty($this->service)) + { + if (isset($this->DSN)) + { + $this->dsn .= 'DSN='.$this->DSN; + } + elseif ( ! empty($this->database)) + { + $this->dsn .= 'DSN='.$this->database; + } + + return; + } + + if (isset($this->host)) + { + $this->dsn .= 'host='.$this->host; + } + else + { + $this->dsn .= 'host='.(empty($this->hostname) ? '127.0.0.1' : $this->hostname); + } + + if (isset($this->service)) + { + $this->dsn .= '; service='.$this->service; + } + elseif ( ! empty($this->port)) + { + $this->dsn .= '; service='.$this->port; + } + + empty($this->database) OR $this->dsn .= '; database='.$this->database; + empty($this->server) OR $this->dsn .= '; server='.$this->server; + + $this->dsn .= '; protocol='.(isset($this->protocol) ? $this->protocol : 'onsoctcp') + .'; EnableScrollableCursors=1'; + } + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SELECT "tabname" FROM "systables" + WHERE "tabid" > 99 AND "tabtype" = \'T\' AND LOWER("owner") = '.$this->escape(strtolower($this->username)); + + if ($prefix_limit === TRUE && $this->dbprefix !== '') + { + $sql .= ' AND "tabname" LIKE \''.$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + if (strpos($table, '.') !== FALSE) + { + sscanf($table, '%[^.].%s', $owner, $table); + } + else + { + $owner = $this->username; + } + + return 'SELECT "colname" FROM "systables", "syscolumns" + WHERE "systables"."tabid" = "syscolumns"."tabid" + AND "systables"."tabtype" = \'T\' + AND LOWER("systables"."owner") = '.$this->escape(strtolower($owner)).' + AND LOWER("systables"."tabname") = '.$this->escape(strtolower($table)); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + $sql = 'SELECT "syscolumns"."colname" AS "name", + CASE "syscolumns"."coltype" + WHEN 0 THEN \'CHAR\' + WHEN 1 THEN \'SMALLINT\' + WHEN 2 THEN \'INTEGER\' + WHEN 3 THEN \'FLOAT\' + WHEN 4 THEN \'SMALLFLOAT\' + WHEN 5 THEN \'DECIMAL\' + WHEN 6 THEN \'SERIAL\' + WHEN 7 THEN \'DATE\' + WHEN 8 THEN \'MONEY\' + WHEN 9 THEN \'NULL\' + WHEN 10 THEN \'DATETIME\' + WHEN 11 THEN \'BYTE\' + WHEN 12 THEN \'TEXT\' + WHEN 13 THEN \'VARCHAR\' + WHEN 14 THEN \'INTERVAL\' + WHEN 15 THEN \'NCHAR\' + WHEN 16 THEN \'NVARCHAR\' + WHEN 17 THEN \'INT8\' + WHEN 18 THEN \'SERIAL8\' + WHEN 19 THEN \'SET\' + WHEN 20 THEN \'MULTISET\' + WHEN 21 THEN \'LIST\' + WHEN 22 THEN \'Unnamed ROW\' + WHEN 40 THEN \'LVARCHAR\' + WHEN 41 THEN \'BLOB/CLOB/BOOLEAN\' + WHEN 4118 THEN \'Named ROW\' + ELSE "syscolumns"."coltype" + END AS "type", + "syscolumns"."collength" as "max_length", + CASE "sysdefaults"."type" + WHEN \'L\' THEN "sysdefaults"."default" + ELSE NULL + END AS "default" + FROM "syscolumns", "systables", "sysdefaults" + WHERE "syscolumns"."tabid" = "systables"."tabid" + AND "systables"."tabid" = "sysdefaults"."tabid" + AND "syscolumns"."colno" = "sysdefaults"."colno" + AND "systables"."tabtype" = \'T\' + AND LOWER("systables"."owner") = '.$this->escape(strtolower($this->username)).' + AND LOWER("systables"."tabname") = '.$this->escape(strtolower($table)).' + ORDER BY "syscolumns"."colno"'; + + return (($query = $this->query($sql)) !== FALSE) + ? $query->result_object() + : FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Update statement + * + * Generates a platform-specific update string from the supplied data + * + * @param string $table + * @param array $values + * @return string + */ + protected function _update($table, $values) + { + $this->qb_limit = FALSE; + $this->qb_orderby = array(); + return parent::_update($table, $values); + } + + // -------------------------------------------------------------------- + + /** + * Truncate statement + * + * Generates a platform-specific truncate string from the supplied data + * + * If the database does not support the TRUNCATE statement, + * then this method maps to 'DELETE FROM table' + * + * @param string $table + * @return string + */ + protected function _truncate($table) + { + return 'TRUNCATE TABLE ONLY '.$table; + } + + // -------------------------------------------------------------------- + + /** + * Delete statement + * + * Generates a platform-specific delete string from the supplied data + * + * @param string $table + * @return string + */ + protected function _delete($table) + { + $this->qb_limit = FALSE; + return parent::_delete($table); + } + + // -------------------------------------------------------------------- + + /** + * LIMIT + * + * Generates a platform-specific LIMIT clause + * + * @param string $sql $SQL Query + * @return string + */ + protected function _limit($sql) + { + $select = 'SELECT '.($this->qb_offset ? 'SKIP '.$this->qb_offset : '').'FIRST '.$this->qb_limit.' '; + return preg_replace('/^(SELECT\s)/i', $select, $sql, 1); + } + +} diff --git a/ci/system/database/drivers/pdo/subdrivers/pdo_informix_forge.php b/ci/system/database/drivers/pdo/subdrivers/pdo_informix_forge.php new file mode 100644 index 0000000..368d8dc --- /dev/null +++ b/ci/system/database/drivers/pdo/subdrivers/pdo_informix_forge.php @@ -0,0 +1,164 @@ + 'INTEGER', + 'INT' => 'BIGINT', + 'INTEGER' => 'BIGINT', + 'REAL' => 'DOUBLE PRECISION', + 'SMALLFLOAT' => 'DOUBLE PRECISION' + ); + + /** + * DEFAULT value representation in CREATE/ALTER TABLE statements + * + * @var string + */ + protected $_default = ', '; + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if ($alter_type === 'CHANGE') + { + $alter_type = 'MODIFY'; + } + + return parent::_alter_table($alter_type, $table, $field); + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'TINYINT': + $attributes['TYPE'] = 'SMALLINT'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'BYTE': + case 'TEXT': + case 'BLOB': + case 'CLOB': + $attributes['UNIQUE'] = FALSE; + if (isset($attributes['DEFAULT'])) + { + unset($attributes['DEFAULT']); + } + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute UNIQUE + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_unique(&$attributes, &$field) + { + if ( ! empty($attributes['UNIQUE']) && $attributes['UNIQUE'] === TRUE) + { + $field['unique'] = ' UNIQUE CONSTRAINT '.$this->db->escape_identifiers($field['name']); + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + // Not supported + } + +} diff --git a/ci/system/database/drivers/pdo/subdrivers/pdo_mysql_driver.php b/ci/system/database/drivers/pdo/subdrivers/pdo_mysql_driver.php new file mode 100644 index 0000000..1ad854d --- /dev/null +++ b/ci/system/database/drivers/pdo/subdrivers/pdo_mysql_driver.php @@ -0,0 +1,380 @@ +dsn)) + { + $this->dsn = 'mysql:host='.(empty($this->hostname) ? '127.0.0.1' : $this->hostname); + + empty($this->port) OR $this->dsn .= ';port='.$this->port; + empty($this->database) OR $this->dsn .= ';dbname='.$this->database; + empty($this->char_set) OR $this->dsn .= ';charset='.$this->char_set; + } + elseif ( ! empty($this->char_set) && strpos($this->dsn, 'charset=', 6) === FALSE) + { + $this->dsn .= ';charset='.$this->char_set; + } + } + + // -------------------------------------------------------------------- + + /** + * Database connection + * + * @param bool $persistent + * @return object + */ + public function db_connect($persistent = FALSE) + { + if (isset($this->stricton)) + { + if ($this->stricton) + { + $sql = 'CONCAT(@@sql_mode, ",", "STRICT_ALL_TABLES")'; + } + else + { + $sql = 'REPLACE(REPLACE(REPLACE(REPLACE(REPLACE(REPLACE( + @@sql_mode, + "STRICT_ALL_TABLES,", ""), + ",STRICT_ALL_TABLES", ""), + "STRICT_ALL_TABLES", ""), + "STRICT_TRANS_TABLES,", ""), + ",STRICT_TRANS_TABLES", ""), + "STRICT_TRANS_TABLES", "")'; + } + + if ( ! empty($sql)) + { + if (empty($this->options[PDO::MYSQL_ATTR_INIT_COMMAND])) + { + $this->options[PDO::MYSQL_ATTR_INIT_COMMAND] = 'SET SESSION sql_mode = '.$sql; + } + else + { + $this->options[PDO::MYSQL_ATTR_INIT_COMMAND] .= ', @@session.sql_mode = '.$sql; + } + } + } + + if ($this->compress === TRUE) + { + $this->options[PDO::MYSQL_ATTR_COMPRESS] = TRUE; + } + + if (is_array($this->encrypt)) + { + $ssl = array(); + empty($this->encrypt['ssl_key']) OR $ssl[PDO::MYSQL_ATTR_SSL_KEY] = $this->encrypt['ssl_key']; + empty($this->encrypt['ssl_cert']) OR $ssl[PDO::MYSQL_ATTR_SSL_CERT] = $this->encrypt['ssl_cert']; + empty($this->encrypt['ssl_ca']) OR $ssl[PDO::MYSQL_ATTR_SSL_CA] = $this->encrypt['ssl_ca']; + empty($this->encrypt['ssl_capath']) OR $ssl[PDO::MYSQL_ATTR_SSL_CAPATH] = $this->encrypt['ssl_capath']; + empty($this->encrypt['ssl_cipher']) OR $ssl[PDO::MYSQL_ATTR_SSL_CIPHER] = $this->encrypt['ssl_cipher']; + + if (defined('PDO::MYSQL_ATTR_SSL_VERIFY_SERVER_CERT') && isset($this->encrypt['ssl_verify'])) + { + $ssl[PDO::MYSQL_ATTR_SSL_VERIFY_SERVER_CERT] = $this->encrypt['ssl_verify']; + } + + // DO NOT use array_merge() here! + // It re-indexes numeric keys and the PDO_MYSQL_ATTR_SSL_* constants are integers. + empty($ssl) OR $this->options += $ssl; + } + + // Prior to version 5.7.3, MySQL silently downgrades to an unencrypted connection if SSL setup fails + if ( + ($pdo = parent::db_connect($persistent)) !== FALSE + && ! empty($ssl) + && version_compare($pdo->getAttribute(PDO::ATTR_CLIENT_VERSION), '5.7.3', '<=') + && empty($pdo->query("SHOW STATUS LIKE 'ssl_cipher'")->fetchObject()->Value) + ) + { + $message = 'PDO_MYSQL was configured for an SSL connection, but got an unencrypted connection instead!'; + log_message('error', $message); + return ($this->db_debug) ? $this->display_error($message, '', TRUE) : FALSE; + } + + return $pdo; + } + + // -------------------------------------------------------------------- + + /** + * Select the database + * + * @param string $database + * @return bool + */ + public function db_select($database = '') + { + if ($database === '') + { + $database = $this->database; + } + + if (FALSE !== $this->simple_query('USE '.$this->escape_identifiers($database))) + { + $this->database = $database; + $this->data_cache = array(); + return TRUE; + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Begin Transaction + * + * @return bool + */ + protected function _trans_begin() + { + $this->conn_id->setAttribute(PDO::ATTR_AUTOCOMMIT, FALSE); + return $this->conn_id->beginTransaction(); + } + + // -------------------------------------------------------------------- + + /** + * Commit Transaction + * + * @return bool + */ + protected function _trans_commit() + { + if ($this->conn_id->commit()) + { + $this->conn_id->setAttribute(PDO::ATTR_AUTOCOMMIT, TRUE); + return TRUE; + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Rollback Transaction + * + * @return bool + */ + protected function _trans_rollback() + { + if ($this->conn_id->rollBack()) + { + $this->conn_id->setAttribute(PDO::ATTR_AUTOCOMMIT, TRUE); + return TRUE; + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SHOW TABLES FROM '.$this->_escape_char.$this->database.$this->_escape_char; + + if ($prefix_limit === TRUE && $this->dbprefix !== '') + { + return $sql." LIKE '".$this->escape_like_str($this->dbprefix)."%'"; + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + return 'SHOW COLUMNS FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + if (($query = $this->query('SHOW COLUMNS FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE))) === FALSE) + { + return FALSE; + } + $query = $query->result_object(); + + $retval = array(); + for ($i = 0, $c = count($query); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $query[$i]->Field; + + sscanf($query[$i]->Type, '%[a-z](%d)', + $retval[$i]->type, + $retval[$i]->max_length + ); + + $retval[$i]->default = $query[$i]->Default; + $retval[$i]->primary_key = (int) ($query[$i]->Key === 'PRI'); + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Truncate statement + * + * Generates a platform-specific truncate string from the supplied data + * + * If the database does not support the TRUNCATE statement, + * then this method maps to 'DELETE FROM table' + * + * @param string $table + * @return string + */ + protected function _truncate($table) + { + return 'TRUNCATE '.$table; + } + + // -------------------------------------------------------------------- + + /** + * FROM tables + * + * Groups tables in FROM clauses if needed, so there is no confusion + * about operator precedence. + * + * @return string + */ + protected function _from_tables() + { + if ( ! empty($this->qb_join) && count($this->qb_from) > 1) + { + return '('.implode(', ', $this->qb_from).')'; + } + + return implode(', ', $this->qb_from); + } + +} diff --git a/ci/system/database/drivers/pdo/subdrivers/pdo_mysql_forge.php b/ci/system/database/drivers/pdo/subdrivers/pdo_mysql_forge.php new file mode 100644 index 0000000..8bf5cfb --- /dev/null +++ b/ci/system/database/drivers/pdo/subdrivers/pdo_mysql_forge.php @@ -0,0 +1,257 @@ +db->char_set) && ! strpos($sql, 'CHARACTER SET') && ! strpos($sql, 'CHARSET')) + { + $sql .= ' DEFAULT CHARACTER SET = '.$this->db->char_set; + } + + if ( ! empty($this->db->dbcollat) && ! strpos($sql, 'COLLATE')) + { + $sql .= ' COLLATE = '.$this->db->dbcollat; + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if ($alter_type === 'DROP') + { + return parent::_alter_table($alter_type, $table, $field); + } + + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + if ($field[$i]['_literal'] !== FALSE) + { + $field[$i] = ($alter_type === 'ADD') + ? "\n\tADD ".$field[$i]['_literal'] + : "\n\tMODIFY ".$field[$i]['_literal']; + } + else + { + if ($alter_type === 'ADD') + { + $field[$i]['_literal'] = "\n\tADD "; + } + else + { + $field[$i]['_literal'] = empty($field[$i]['new_name']) ? "\n\tMODIFY " : "\n\tCHANGE "; + } + + $field[$i] = $field[$i]['_literal'].$this->_process_column($field[$i]); + } + } + + return array($sql.implode(',', $field)); + } + + // -------------------------------------------------------------------- + + /** + * Process column + * + * @param array $field + * @return string + */ + protected function _process_column($field) + { + $extra_clause = isset($field['after']) + ? ' AFTER '.$this->db->escape_identifiers($field['after']) : ''; + + if (empty($extra_clause) && isset($field['first']) && $field['first'] === TRUE) + { + $extra_clause = ' FIRST'; + } + + return $this->db->escape_identifiers($field['name']) + .(empty($field['new_name']) ? '' : ' '.$this->db->escape_identifiers($field['new_name'])) + .' '.$field['type'].$field['length'] + .$field['unsigned'] + .$field['null'] + .$field['default'] + .$field['auto_increment'] + .$field['unique'] + .(empty($field['comment']) ? '' : ' COMMENT '.$field['comment']) + .$extra_clause; + } + + // -------------------------------------------------------------------- + + /** + * Process indexes + * + * @param string $table (ignored) + * @return string + */ + protected function _process_indexes($table) + { + $sql = ''; + + for ($i = 0, $c = count($this->keys); $i < $c; $i++) + { + if (is_array($this->keys[$i])) + { + for ($i2 = 0, $c2 = count($this->keys[$i]); $i2 < $c2; $i2++) + { + if ( ! isset($this->fields[$this->keys[$i][$i2]])) + { + unset($this->keys[$i][$i2]); + continue; + } + } + } + elseif ( ! isset($this->fields[$this->keys[$i]])) + { + unset($this->keys[$i]); + continue; + } + + is_array($this->keys[$i]) OR $this->keys[$i] = array($this->keys[$i]); + + $sql .= ",\n\tKEY ".$this->db->escape_identifiers(implode('_', $this->keys[$i])) + .' ('.implode(', ', $this->db->escape_identifiers($this->keys[$i])).')'; + } + + $this->keys = array(); + + return $sql; + } + +} diff --git a/ci/system/database/drivers/pdo/subdrivers/pdo_oci_driver.php b/ci/system/database/drivers/pdo/subdrivers/pdo_oci_driver.php new file mode 100644 index 0000000..3573691 --- /dev/null +++ b/ci/system/database/drivers/pdo/subdrivers/pdo_oci_driver.php @@ -0,0 +1,327 @@ +dsn)) + { + $this->dsn = 'oci:dbname='; + + // Oracle has a slightly different PDO DSN format (Easy Connect), + // which also supports pre-defined DSNs. + if (empty($this->hostname) && empty($this->port)) + { + $this->dsn .= $this->database; + } + else + { + $this->dsn .= '//'.(empty($this->hostname) ? '127.0.0.1' : $this->hostname) + .(empty($this->port) ? '' : ':'.$this->port).'/'; + + empty($this->database) OR $this->dsn .= $this->database; + } + + empty($this->char_set) OR $this->dsn .= ';charset='.$this->char_set; + } + elseif ( ! empty($this->char_set) && strpos($this->dsn, 'charset=', 4) === FALSE) + { + $this->dsn .= ';charset='.$this->char_set; + } + } + + // -------------------------------------------------------------------- + + /** + * Database version number + * + * @return string + */ + public function version() + { + if (isset($this->data_cache['version'])) + { + return $this->data_cache['version']; + } + + $version_string = parent::version(); + if (preg_match('#(Release\s)?(?\d+(?:\.\d+)+)#', $version_string, $match)) + { + return $this->data_cache['version'] = $match['version']; + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SELECT "TABLE_NAME" FROM "ALL_TABLES"'; + + if ($prefix_limit === TRUE && $this->dbprefix !== '') + { + return $sql.' WHERE "TABLE_NAME" LIKE \''.$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + if (strpos($table, '.') !== FALSE) + { + sscanf($table, '%[^.].%s', $owner, $table); + } + else + { + $owner = $this->username; + } + + return 'SELECT COLUMN_NAME FROM ALL_TAB_COLUMNS + WHERE UPPER(OWNER) = '.$this->escape(strtoupper($owner)).' + AND UPPER(TABLE_NAME) = '.$this->escape(strtoupper($table)); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + if (strpos($table, '.') !== FALSE) + { + sscanf($table, '%[^.].%s', $owner, $table); + } + else + { + $owner = $this->username; + } + + $sql = 'SELECT COLUMN_NAME, DATA_TYPE, CHAR_LENGTH, DATA_PRECISION, DATA_LENGTH, DATA_DEFAULT, NULLABLE + FROM ALL_TAB_COLUMNS + WHERE UPPER(OWNER) = '.$this->escape(strtoupper($owner)).' + AND UPPER(TABLE_NAME) = '.$this->escape(strtoupper($table)); + + if (($query = $this->query($sql)) === FALSE) + { + return FALSE; + } + $query = $query->result_object(); + + $retval = array(); + for ($i = 0, $c = count($query); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $query[$i]->COLUMN_NAME; + $retval[$i]->type = $query[$i]->DATA_TYPE; + + $length = ($query[$i]->CHAR_LENGTH > 0) + ? $query[$i]->CHAR_LENGTH : $query[$i]->DATA_PRECISION; + if ($length === NULL) + { + $length = $query[$i]->DATA_LENGTH; + } + $retval[$i]->max_length = $length; + + $default = $query[$i]->DATA_DEFAULT; + if ($default === NULL && $query[$i]->NULLABLE === 'N') + { + $default = ''; + } + $retval[$i]->default = $query[$i]->COLUMN_DEFAULT; + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Insert batch statement + * + * @param string $table Table name + * @param array $keys INSERT keys + * @param array $values INSERT values + * @return string + */ + protected function _insert_batch($table, $keys, $values) + { + $keys = implode(', ', $keys); + $sql = "INSERT ALL\n"; + + for ($i = 0, $c = count($values); $i < $c; $i++) + { + $sql .= ' INTO '.$table.' ('.$keys.') VALUES '.$values[$i]."\n"; + } + + return $sql.'SELECT * FROM dual'; + } + + // -------------------------------------------------------------------- + + /** + * Delete statement + * + * Generates a platform-specific delete string from the supplied data + * + * @param string $table + * @return string + */ + protected function _delete($table) + { + if ($this->qb_limit) + { + $this->where('rownum <= ',$this->qb_limit, FALSE); + $this->qb_limit = FALSE; + } + + return parent::_delete($table); + } + + // -------------------------------------------------------------------- + + /** + * LIMIT + * + * Generates a platform-specific LIMIT clause + * + * @param string $sql SQL Query + * @return string + */ + protected function _limit($sql) + { + if (version_compare($this->version(), '12.1', '>=')) + { + // OFFSET-FETCH can be used only with the ORDER BY clause + empty($this->qb_orderby) && $sql .= ' ORDER BY 1'; + + return $sql.' OFFSET '.(int) $this->qb_offset.' ROWS FETCH NEXT '.$this->qb_limit.' ROWS ONLY'; + } + + return 'SELECT * FROM (SELECT inner_query.*, rownum rnum FROM ('.$sql.') inner_query WHERE rownum < '.($this->qb_offset + $this->qb_limit + 1).')' + .($this->qb_offset ? ' WHERE rnum >= '.($this->qb_offset + 1): ''); + } + +} diff --git a/ci/system/database/drivers/pdo/subdrivers/pdo_oci_forge.php b/ci/system/database/drivers/pdo/subdrivers/pdo_oci_forge.php new file mode 100644 index 0000000..0783cd5 --- /dev/null +++ b/ci/system/database/drivers/pdo/subdrivers/pdo_oci_forge.php @@ -0,0 +1,208 @@ +db->escape_identifiers($table); + $sqls = array(); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + if ($field[$i]['_literal'] !== FALSE) + { + $field[$i] = "\n\t".$field[$i]['_literal']; + } + else + { + $field[$i]['_literal'] = "\n\t".$this->_process_column($field[$i]); + + if ( ! empty($field[$i]['comment'])) + { + $sqls[] = 'COMMENT ON COLUMN ' + .$this->db->escape_identifiers($table).'.'.$this->db->escape_identifiers($field[$i]['name']) + .' IS '.$field[$i]['comment']; + } + + if ($alter_type === 'MODIFY' && ! empty($field[$i]['new_name'])) + { + $sqls[] = $sql.' RENAME COLUMN '.$this->db->escape_identifiers($field[$i]['name']) + .' TO '.$this->db->escape_identifiers($field[$i]['new_name']); + } + } + } + + $sql .= ' '.$alter_type.' '; + $sql .= (count($field) === 1) + ? $field[0] + : '('.implode(',', $field).')'; + + // RENAME COLUMN must be executed after MODIFY + array_unshift($sqls, $sql); + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE && stripos($field['type'], 'number') !== FALSE && version_compare($this->db->version(), '12.1', '>=')) + { + $field['auto_increment'] = ' GENERATED ALWAYS AS IDENTITY'; + } + } + + // -------------------------------------------------------------------- + + /** + * Process column + * + * @param array $field + * @return string + */ + protected function _process_column($field) + { + return $this->db->escape_identifiers($field['name']) + .' '.$field['type'].$field['length'] + .$field['unsigned'] + .$field['default'] + .$field['auto_increment'] + .$field['null'] + .$field['unique']; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'TINYINT': + $attributes['TYPE'] = 'NUMBER'; + return; + case 'MEDIUMINT': + $attributes['TYPE'] = 'NUMBER'; + return; + case 'INT': + $attributes['TYPE'] = 'NUMBER'; + return; + case 'BIGINT': + $attributes['TYPE'] = 'NUMBER'; + return; + default: return; + } + } +} diff --git a/ci/system/database/drivers/pdo/subdrivers/pdo_odbc_driver.php b/ci/system/database/drivers/pdo/subdrivers/pdo_odbc_driver.php new file mode 100644 index 0000000..6b7f237 --- /dev/null +++ b/ci/system/database/drivers/pdo/subdrivers/pdo_odbc_driver.php @@ -0,0 +1,230 @@ +dsn)) + { + $this->dsn = 'odbc:'; + + // Pre-defined DSN + if (empty($this->hostname) && empty($this->HOSTNAME) && empty($this->port) && empty($this->PORT)) + { + if (isset($this->DSN)) + { + $this->dsn .= 'DSN='.$this->DSN; + } + elseif ( ! empty($this->database)) + { + $this->dsn .= 'DSN='.$this->database; + } + + return; + } + + // If the DSN is not pre-configured - try to build an IBM DB2 connection string + $this->dsn .= 'DRIVER='.(isset($this->DRIVER) ? '{'.$this->DRIVER.'}' : '{IBM DB2 ODBC DRIVER}').';'; + + if (isset($this->DATABASE)) + { + $this->dsn .= 'DATABASE='.$this->DATABASE.';'; + } + elseif ( ! empty($this->database)) + { + $this->dsn .= 'DATABASE='.$this->database.';'; + } + + if (isset($this->HOSTNAME)) + { + $this->dsn .= 'HOSTNAME='.$this->HOSTNAME.';'; + } + else + { + $this->dsn .= 'HOSTNAME='.(empty($this->hostname) ? '127.0.0.1;' : $this->hostname.';'); + } + + if (isset($this->PORT)) + { + $this->dsn .= 'PORT='.$this->port.';'; + } + elseif ( ! empty($this->port)) + { + $this->dsn .= ';PORT='.$this->port.';'; + } + + $this->dsn .= 'PROTOCOL='.(isset($this->PROTOCOL) ? $this->PROTOCOL.';' : 'TCPIP;'); + } + } + + // -------------------------------------------------------------------- + + /** + * Platform-dependent string escape + * + * @param string + * @return string + */ + protected function _escape_str($str) + { + $this->display_error('db_unsupported_feature'); + } + + // -------------------------------------------------------------------- + + /** + * Determines if a query is a "write" type. + * + * @param string An SQL query string + * @return bool + */ + public function is_write_type($sql) + { + if (preg_match('#^(INSERT|UPDATE).*RETURNING\s.+(\,\s?.+)*$#is', $sql)) + { + return FALSE; + } + + return parent::is_write_type($sql); + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = "SELECT table_name FROM information_schema.tables WHERE table_schema = '".$this->schema."'"; + + if ($prefix_limit !== FALSE && $this->dbprefix !== '') + { + return $sql." AND table_name LIKE '".$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + return 'SELECT column_name FROM information_schema.columns WHERE table_name = '.$this->escape($table); + } +} diff --git a/ci/system/database/drivers/pdo/subdrivers/pdo_odbc_forge.php b/ci/system/database/drivers/pdo/subdrivers/pdo_odbc_forge.php new file mode 100644 index 0000000..c9b8238 --- /dev/null +++ b/ci/system/database/drivers/pdo/subdrivers/pdo_odbc_forge.php @@ -0,0 +1,71 @@ +dsn)) + { + $this->dsn = 'pgsql:host='.(empty($this->hostname) ? '127.0.0.1' : $this->hostname); + + empty($this->port) OR $this->dsn .= ';port='.$this->port; + empty($this->database) OR $this->dsn .= ';dbname='.$this->database; + + if ( ! empty($this->username)) + { + $this->dsn .= ';user='.$this->username; + empty($this->password) OR $this->dsn .= ';password='.$this->password; + } + } + } + + // -------------------------------------------------------------------- + + /** + * Database connection + * + * @param bool $persistent + * @return object + */ + public function db_connect($persistent = FALSE) + { + $this->conn_id = parent::db_connect($persistent); + + if (is_object($this->conn_id) && ! empty($this->schema)) + { + $this->simple_query('SET search_path TO '.$this->schema.',public'); + } + + return $this->conn_id; + } + + // -------------------------------------------------------------------- + + /** + * Insert ID + * + * @param string $name + * @return int + */ + public function insert_id($name = NULL) + { + if ($name === NULL && version_compare($this->version(), '8.1', '>=')) + { + $query = $this->query('SELECT LASTVAL() AS ins_id'); + $query = $query->row(); + return $query->ins_id; + } + + return $this->conn_id->lastInsertId($name); + } + + // -------------------------------------------------------------------- + + /** + * Determines if a query is a "write" type. + * + * @param string An SQL query string + * @return bool + */ + public function is_write_type($sql) + { + if (preg_match('#^(INSERT|UPDATE).*RETURNING\s.+(\,\s?.+)*$#is', $sql)) + { + return FALSE; + } + + return parent::is_write_type($sql); + } + + // -------------------------------------------------------------------- + + /** + * "Smart" Escape String + * + * Escapes data based on type + * + * @param string $str + * @return mixed + */ + public function escape($str) + { + if (is_bool($str)) + { + return ($str) ? 'TRUE' : 'FALSE'; + } + + return parent::escape($str); + } + + // -------------------------------------------------------------------- + + /** + * ORDER BY + * + * @param string $orderby + * @param string $direction ASC, DESC or RANDOM + * @param bool $escape + * @return object + */ + public function order_by($orderby, $direction = '', $escape = NULL) + { + $direction = strtoupper(trim($direction)); + if ($direction === 'RANDOM') + { + if ( ! is_float($orderby) && ctype_digit((string) $orderby)) + { + $orderby = ($orderby > 1) + ? (float) '0.'.$orderby + : (float) $orderby; + } + + if (is_float($orderby)) + { + $this->simple_query('SET SEED '.$orderby); + } + + $orderby = $this->_random_keyword[0]; + $direction = ''; + $escape = FALSE; + } + + return parent::order_by($orderby, $direction, $escape); + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SELECT "table_name" FROM "information_schema"."tables" WHERE "table_schema" = \''.$this->schema."'"; + + if ($prefix_limit === TRUE && $this->dbprefix !== '') + { + return $sql.' AND "table_name" LIKE \'' + .$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * List column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + return 'SELECT "column_name" + FROM "information_schema"."columns" + WHERE "table_schema" = \''.$this->schema.'\' AND LOWER("table_name") = '.$this->escape(strtolower($table)); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + $sql = 'SELECT "column_name", "data_type", "character_maximum_length", "numeric_precision", "column_default" + FROM "information_schema"."columns" + WHERE "table_schema" = \''.$this->schema.'\' AND LOWER("table_name") = '.$this->escape(strtolower($table)); + + if (($query = $this->query($sql)) === FALSE) + { + return FALSE; + } + $query = $query->result_object(); + + $retval = array(); + for ($i = 0, $c = count($query); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $query[$i]->column_name; + $retval[$i]->type = $query[$i]->data_type; + $retval[$i]->max_length = ($query[$i]->character_maximum_length > 0) ? $query[$i]->character_maximum_length : $query[$i]->numeric_precision; + $retval[$i]->default = $query[$i]->column_default; + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Update statement + * + * Generates a platform-specific update string from the supplied data + * + * @param string $table + * @param array $values + * @return string + */ + protected function _update($table, $values) + { + $this->qb_limit = FALSE; + $this->qb_orderby = array(); + return parent::_update($table, $values); + } + + // -------------------------------------------------------------------- + + /** + * Update_Batch statement + * + * Generates a platform-specific batch update string from the supplied data + * + * @param string $table Table name + * @param array $values Update data + * @param string $index WHERE key + * @return string + */ + protected function _update_batch($table, $values, $index) + { + $ids = array(); + foreach ($values as $key => $val) + { + $ids[] = $val[$index]['value']; + + foreach (array_keys($val) as $field) + { + if ($field !== $index) + { + $final[$val[$field]['field']][] = 'WHEN '.$val[$index]['value'].' THEN '.$val[$field]['value']; + } + } + } + + $cases = ''; + foreach ($final as $k => $v) + { + $cases .= $k.' = (CASE '.$val[$index]['field']."\n" + .implode("\n", $v)."\n" + .'ELSE '.$k.' END), '; + } + + $this->where($val[$index]['field'].' IN('.implode(',', $ids).')', NULL, FALSE); + + return 'UPDATE '.$table.' SET '.substr($cases, 0, -2).$this->_compile_wh('qb_where'); + } + + // -------------------------------------------------------------------- + + /** + * Delete statement + * + * Generates a platform-specific delete string from the supplied data + * + * @param string $table + * @return string + */ + protected function _delete($table) + { + $this->qb_limit = FALSE; + return parent::_delete($table); + } + + // -------------------------------------------------------------------- + + /** + * LIMIT + * + * Generates a platform-specific LIMIT clause + * + * @param string $sql SQL Query + * @return string + */ + protected function _limit($sql) + { + return $sql.' LIMIT '.$this->qb_limit.($this->qb_offset ? ' OFFSET '.$this->qb_offset : ''); + } + +} diff --git a/ci/system/database/drivers/pdo/subdrivers/pdo_pgsql_forge.php b/ci/system/database/drivers/pdo/subdrivers/pdo_pgsql_forge.php new file mode 100644 index 0000000..cea2054 --- /dev/null +++ b/ci/system/database/drivers/pdo/subdrivers/pdo_pgsql_forge.php @@ -0,0 +1,218 @@ + 'INTEGER', + 'SMALLINT' => 'INTEGER', + 'INT' => 'BIGINT', + 'INT4' => 'BIGINT', + 'INTEGER' => 'BIGINT', + 'INT8' => 'NUMERIC', + 'BIGINT' => 'NUMERIC', + 'REAL' => 'DOUBLE PRECISION', + 'FLOAT' => 'DOUBLE PRECISION' + ); + + /** + * NULL value representation in CREATE/ALTER TABLE statements + * + * @var string + */ + protected $_null = 'NULL'; + + // -------------------------------------------------------------------- + + /** + * Class constructor + * + * @param object &$db Database object + * @return void + */ + public function __construct(&$db) + { + parent::__construct($db); + + if (version_compare($this->db->version(), '9.0', '>')) + { + $this->create_table_if = 'CREATE TABLE IF NOT EXISTS'; + } + } + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if (in_array($alter_type, array('DROP', 'ADD'), TRUE)) + { + return parent::_alter_table($alter_type, $table, $field); + } + + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table); + $sqls = array(); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + if ($field[$i]['_literal'] !== FALSE) + { + return FALSE; + } + + if (version_compare($this->db->version(), '8', '>=') && isset($field[$i]['type'])) + { + $sqls[] = $sql.' ALTER COLUMN '.$this->db->escape_identifiers($field[$i]['name']) + .' TYPE '.$field[$i]['type'].$field[$i]['length']; + } + + if ( ! empty($field[$i]['default'])) + { + $sqls[] = $sql.' ALTER COLUMN '.$this->db->escape_identifiers($field[$i]['name']) + .' SET '.$field[$i]['default']; + } + + if (isset($field[$i]['null'])) + { + $sqls[] = $sql.' ALTER COLUMN '.$this->db->escape_identifiers($field[$i]['name']) + .(trim($field[$i]['null']) === $this->_null ? ' DROP NOT NULL' : ' SET NOT NULL'); + } + + if ( ! empty($field[$i]['new_name'])) + { + $sqls[] = $sql.' RENAME COLUMN '.$this->db->escape_identifiers($field[$i]['name']) + .' TO '.$this->db->escape_identifiers($field[$i]['new_name']); + } + + if ( ! empty($field[$i]['comment'])) + { + $sqls[] = 'COMMENT ON COLUMN ' + .$this->db->escape_identifiers($table).'.'.$this->db->escape_identifiers($field[$i]['name']) + .' IS '.$field[$i]['comment']; + } + } + + return $sqls; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + // Reset field lengths for data types that don't support it + if (isset($attributes['CONSTRAINT']) && stripos($attributes['TYPE'], 'int') !== FALSE) + { + $attributes['CONSTRAINT'] = NULL; + } + + switch (strtoupper($attributes['TYPE'])) + { + case 'TINYINT': + $attributes['TYPE'] = 'SMALLINT'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE) + { + $field['type'] = ($field['type'] === 'NUMERIC') + ? 'BIGSERIAL' + : 'SERIAL'; + } + } + +} diff --git a/ci/system/database/drivers/pdo/subdrivers/pdo_sqlite_driver.php b/ci/system/database/drivers/pdo/subdrivers/pdo_sqlite_driver.php new file mode 100644 index 0000000..24c34f2 --- /dev/null +++ b/ci/system/database/drivers/pdo/subdrivers/pdo_sqlite_driver.php @@ -0,0 +1,214 @@ +dsn)) + { + $this->dsn = 'sqlite:'; + + if (empty($this->database) && empty($this->hostname)) + { + $this->database = ':memory:'; + } + + $this->database = empty($this->database) ? $this->hostname : $this->database; + } + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SELECT "NAME" FROM "SQLITE_MASTER" WHERE "TYPE" = \'table\''; + + if ($prefix_limit === TRUE && $this->dbprefix !== '') + { + return $sql.' AND "NAME" LIKE \''.$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Fetch Field Names + * + * @param string $table Table name + * @return array + */ + public function list_fields($table) + { + if (($result = $this->query('PRAGMA TABLE_INFO('.$this->protect_identifiers($table, TRUE, NULL, FALSE).')')) === FALSE) + { + return FALSE; + } + + $fields = array(); + foreach ($result->result_array() as $row) + { + $fields[] = $row['name']; + } + + return $fields; + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + if (($query = $this->query('PRAGMA TABLE_INFO('.$this->protect_identifiers($table, TRUE, NULL, FALSE).')')) === FALSE) + { + return FALSE; + } + + $query = $query->result_array(); + if (empty($query)) + { + return FALSE; + } + + $retval = array(); + for ($i = 0, $c = count($query); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $query[$i]['name']; + $retval[$i]->type = $query[$i]['type']; + $retval[$i]->max_length = NULL; + $retval[$i]->default = $query[$i]['dflt_value']; + $retval[$i]->primary_key = isset($query[$i]['pk']) ? (int) $query[$i]['pk'] : 0; + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Replace statement + * + * @param string $table Table name + * @param array $keys INSERT keys + * @param array $values INSERT values + * @return string + */ + protected function _replace($table, $keys, $values) + { + return 'INSERT OR '.parent::_replace($table, $keys, $values); + } + + // -------------------------------------------------------------------- + + /** + * Truncate statement + * + * Generates a platform-specific truncate string from the supplied data + * + * If the database does not support the TRUNCATE statement, + * then this method maps to 'DELETE FROM table' + * + * @param string $table + * @return string + */ + protected function _truncate($table) + { + return 'DELETE FROM '.$table; + } + +} diff --git a/ci/system/database/drivers/pdo/subdrivers/pdo_sqlite_forge.php b/ci/system/database/drivers/pdo/subdrivers/pdo_sqlite_forge.php new file mode 100644 index 0000000..b0edcbd --- /dev/null +++ b/ci/system/database/drivers/pdo/subdrivers/pdo_sqlite_forge.php @@ -0,0 +1,239 @@ +db->version(), '3.3', '<')) + { + $this->_create_table_if = FALSE; + $this->_drop_table_if = FALSE; + } + } + + // -------------------------------------------------------------------- + + /** + * Create database + * + * @param string $db_name (ignored) + * @return bool + */ + public function create_database($db_name) + { + // In SQLite, a database is created when you connect to the database. + // We'll return TRUE so that an error isn't generated + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Drop database + * + * @param string $db_name (ignored) + * @return bool + */ + public function drop_database($db_name) + { + // In SQLite, a database is dropped when we delete a file + if (file_exists($this->db->database)) + { + // We need to close the pseudo-connection first + $this->db->close(); + if ( ! @unlink($this->db->database)) + { + return $this->db->db_debug ? $this->db->display_error('db_unable_to_drop') : FALSE; + } + elseif ( ! empty($this->db->data_cache['db_names'])) + { + $key = array_search(strtolower($this->db->database), array_map('strtolower', $this->db->data_cache['db_names']), TRUE); + if ($key !== FALSE) + { + unset($this->db->data_cache['db_names'][$key]); + } + } + + return TRUE; + } + + return $this->db->db_debug ? $this->db->display_error('db_unable_to_drop') : FALSE; + } + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if ($alter_type === 'DROP' OR $alter_type === 'CHANGE') + { + // drop_column(): + // BEGIN TRANSACTION; + // CREATE TEMPORARY TABLE t1_backup(a,b); + // INSERT INTO t1_backup SELECT a,b FROM t1; + // DROP TABLE t1; + // CREATE TABLE t1(a,b); + // INSERT INTO t1 SELECT a,b FROM t1_backup; + // DROP TABLE t1_backup; + // COMMIT; + + return FALSE; + } + + return parent::_alter_table($alter_type, $table, $field); + } + + // -------------------------------------------------------------------- + + /** + * Process column + * + * @param array $field + * @return string + */ + protected function _process_column($field) + { + return $this->db->escape_identifiers($field['name']) + .' '.$field['type'] + .$field['auto_increment'] + .$field['null'] + .$field['unique'] + .$field['default']; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'ENUM': + case 'SET': + $attributes['TYPE'] = 'TEXT'; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE && stripos($field['type'], 'int') !== FALSE) + { + $field['type'] = 'INTEGER PRIMARY KEY'; + $field['default'] = ''; + $field['null'] = ''; + $field['unique'] = ''; + $field['auto_increment'] = ' AUTOINCREMENT'; + + $this->primary_keys = array(); + } + } + +} diff --git a/ci/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php b/ci/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php new file mode 100644 index 0000000..685b61e --- /dev/null +++ b/ci/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php @@ -0,0 +1,370 @@ +dsn)) + { + $this->dsn = 'sqlsrv:Server='.(empty($this->hostname) ? '127.0.0.1' : $this->hostname); + + empty($this->port) OR $this->dsn .= ','.$this->port; + empty($this->database) OR $this->dsn .= ';Database='.$this->database; + + // Some custom options + + if (isset($this->QuotedId)) + { + $this->dsn .= ';QuotedId='.$this->QuotedId; + $this->_quoted_identifier = (bool) $this->QuotedId; + } + + if (isset($this->ConnectionPooling)) + { + $this->dsn .= ';ConnectionPooling='.$this->ConnectionPooling; + } + + if ($this->encrypt === TRUE) + { + $this->dsn .= ';Encrypt=1'; + } + + if (isset($this->TraceOn)) + { + $this->dsn .= ';TraceOn='.$this->TraceOn; + } + + if (isset($this->TrustServerCertificate)) + { + $this->dsn .= ';TrustServerCertificate='.$this->TrustServerCertificate; + } + + empty($this->APP) OR $this->dsn .= ';APP='.$this->APP; + empty($this->Failover_Partner) OR $this->dsn .= ';Failover_Partner='.$this->Failover_Partner; + empty($this->LoginTimeout) OR $this->dsn .= ';LoginTimeout='.$this->LoginTimeout; + empty($this->MultipleActiveResultSets) OR $this->dsn .= ';MultipleActiveResultSets='.$this->MultipleActiveResultSets; + empty($this->TraceFile) OR $this->dsn .= ';TraceFile='.$this->TraceFile; + empty($this->WSID) OR $this->dsn .= ';WSID='.$this->WSID; + } + elseif (preg_match('/QuotedId=(0|1)/', $this->dsn, $match)) + { + $this->_quoted_identifier = (bool) $match[1]; + } + } + + // -------------------------------------------------------------------- + + /** + * Database connection + * + * @param bool $persistent + * @return object + */ + public function db_connect($persistent = FALSE) + { + if ( ! empty($this->char_set) && preg_match('/utf[^8]*8/i', $this->char_set)) + { + $this->options[PDO::SQLSRV_ENCODING_UTF8] = 1; + } + + $this->conn_id = parent::db_connect($persistent); + + if ( ! is_object($this->conn_id) OR is_bool($this->_quoted_identifier)) + { + return $this->conn_id; + } + + // Determine how identifiers are escaped + $query = $this->query('SELECT CASE WHEN (@@OPTIONS | 256) = @@OPTIONS THEN 1 ELSE 0 END AS qi'); + $query = $query->row_array(); + $this->_quoted_identifier = empty($query) ? FALSE : (bool) $query['qi']; + $this->_escape_char = ($this->_quoted_identifier) ? '"' : array('[', ']'); + + return $this->conn_id; + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SELECT '.$this->escape_identifiers('name') + .' FROM '.$this->escape_identifiers('sysobjects') + .' WHERE '.$this->escape_identifiers('type')." = 'U'"; + + if ($prefix_limit === TRUE && $this->dbprefix !== '') + { + $sql .= ' AND '.$this->escape_identifiers('name')." LIKE '".$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + return $sql.' ORDER BY '.$this->escape_identifiers('name'); + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + return 'SELECT COLUMN_NAME + FROM INFORMATION_SCHEMA.Columns + WHERE UPPER(TABLE_NAME) = '.$this->escape(strtoupper($table)); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + $sql = 'SELECT COLUMN_NAME, DATA_TYPE, CHARACTER_MAXIMUM_LENGTH, NUMERIC_PRECISION, COLUMN_DEFAULT + FROM INFORMATION_SCHEMA.Columns + WHERE UPPER(TABLE_NAME) = '.$this->escape(strtoupper($table)); + + if (($query = $this->query($sql)) === FALSE) + { + return FALSE; + } + $query = $query->result_object(); + + $retval = array(); + for ($i = 0, $c = count($query); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $query[$i]->COLUMN_NAME; + $retval[$i]->type = $query[$i]->DATA_TYPE; + $retval[$i]->max_length = ($query[$i]->CHARACTER_MAXIMUM_LENGTH > 0) ? $query[$i]->CHARACTER_MAXIMUM_LENGTH : $query[$i]->NUMERIC_PRECISION; + $retval[$i]->default = $query[$i]->COLUMN_DEFAULT; + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Update statement + * + * Generates a platform-specific update string from the supplied data + * + * @param string $table + * @param array $values + * @return string + */ + protected function _update($table, $values) + { + $this->qb_limit = FALSE; + $this->qb_orderby = array(); + return parent::_update($table, $values); + } + + // -------------------------------------------------------------------- + + /** + * Delete statement + * + * Generates a platform-specific delete string from the supplied data + * + * @param string $table + * @return string + */ + protected function _delete($table) + { + if ($this->qb_limit) + { + return 'WITH ci_delete AS (SELECT TOP '.$this->qb_limit.' * FROM '.$table.$this->_compile_wh('qb_where').') DELETE FROM ci_delete'; + } + + return parent::_delete($table); + } + + // -------------------------------------------------------------------- + + /** + * LIMIT + * + * Generates a platform-specific LIMIT clause + * + * @param string $sql SQL Query + * @return string + */ + protected function _limit($sql) + { + // As of SQL Server 2012 (11.0.*) OFFSET is supported + if (version_compare($this->version(), '11', '>=')) + { + // SQL Server OFFSET-FETCH can be used only with the ORDER BY clause + empty($this->qb_orderby) && $sql .= ' ORDER BY 1'; + + return $sql.' OFFSET '.(int) $this->qb_offset.' ROWS FETCH NEXT '.$this->qb_limit.' ROWS ONLY'; + } + + $limit = $this->qb_offset + $this->qb_limit; + + // An ORDER BY clause is required for ROW_NUMBER() to work + if ($this->qb_offset && ! empty($this->qb_orderby)) + { + $orderby = $this->_compile_order_by(); + + // We have to strip the ORDER BY clause + $sql = trim(substr($sql, 0, strrpos($sql, $orderby))); + + // Get the fields to select from our subquery, so that we can avoid CI_rownum appearing in the actual results + if (count($this->qb_select) === 0 OR strpos(implode(',', $this->qb_select), '*') !== FALSE) + { + $select = '*'; // Inevitable + } + else + { + // Use only field names and their aliases, everything else is out of our scope. + $select = array(); + $field_regexp = ($this->_quoted_identifier) + ? '("[^\"]+")' : '(\[[^\]]+\])'; + for ($i = 0, $c = count($this->qb_select); $i < $c; $i++) + { + $select[] = preg_match('/(?:\s|\.)'.$field_regexp.'$/i', $this->qb_select[$i], $m) + ? $m[1] : $this->qb_select[$i]; + } + $select = implode(', ', $select); + } + + return 'SELECT '.$select." FROM (\n\n" + .preg_replace('/^(SELECT( DISTINCT)?)/i', '\\1 ROW_NUMBER() OVER('.trim($orderby).') AS '.$this->escape_identifiers('CI_rownum').', ', $sql) + ."\n\n) ".$this->escape_identifiers('CI_subquery') + ."\nWHERE ".$this->escape_identifiers('CI_rownum').' BETWEEN '.($this->qb_offset + 1).' AND '.$limit; + } + + return preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.$limit.' ', $sql); + } + + // -------------------------------------------------------------------- + + /** + * Insert batch statement + * + * Generates a platform-specific insert string from the supplied data. + * + * @param string $table Table name + * @param array $keys INSERT keys + * @param array $values INSERT values + * @return string|bool + */ + protected function _insert_batch($table, $keys, $values) + { + // Multiple-value inserts are only supported as of SQL Server 2008 + if (version_compare($this->version(), '10', '>=')) + { + return parent::_insert_batch($table, $keys, $values); + } + + return ($this->db_debug) ? $this->display_error('db_unsupported_feature') : FALSE; + } + +} diff --git a/ci/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_forge.php b/ci/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_forge.php new file mode 100644 index 0000000..07eecea --- /dev/null +++ b/ci/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_forge.php @@ -0,0 +1,150 @@ + 'SMALLINT', + 'SMALLINT' => 'INT', + 'INT' => 'BIGINT', + 'REAL' => 'FLOAT' + ); + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if (in_array($alter_type, array('ADD', 'DROP'), TRUE)) + { + return parent::_alter_table($alter_type, $table, $field); + } + + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table).' ALTER COLUMN '; + $sqls = array(); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + $sqls[] = $sql.$this->_process_column($field[$i]); + } + + return $sqls; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + if (isset($attributes['CONSTRAINT']) && strpos($attributes['TYPE'], 'INT') !== FALSE) + { + unset($attributes['CONSTRAINT']); + } + + switch (strtoupper($attributes['TYPE'])) + { + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'INTEGER': + $attributes['TYPE'] = 'INT'; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE && stripos($field['type'], 'int') !== FALSE) + { + $field['auto_increment'] = ' IDENTITY(1,1)'; + } + } + +} diff --git a/ci/system/database/drivers/postgre/index.html b/ci/system/database/drivers/postgre/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/system/database/drivers/postgre/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/system/database/drivers/postgre/postgre_driver.php b/ci/system/database/drivers/postgre/postgre_driver.php new file mode 100644 index 0000000..15d800b --- /dev/null +++ b/ci/system/database/drivers/postgre/postgre_driver.php @@ -0,0 +1,611 @@ +dsn === '' OR $this->dsn = ''; + + if (strpos($this->hostname, '/') !== FALSE) + { + // If UNIX sockets are used, we shouldn't set a port + $this->port = ''; + } + + $this->hostname === '' OR $this->dsn = 'host='.$this->hostname.' '; + + if ( ! empty($this->port) && ctype_digit($this->port)) + { + $this->dsn .= 'port='.$this->port.' '; + } + + if ($this->username !== '') + { + $this->dsn .= 'user='.$this->username.' '; + + /* An empty password is valid! + * + * $db['password'] = NULL must be done in order to ignore it. + */ + $this->password === NULL OR $this->dsn .= "password='".$this->password."' "; + } + + $this->database === '' OR $this->dsn .= 'dbname='.$this->database.' '; + + /* We don't have these options as elements in our standard configuration + * array, but they might be set by parse_url() if the configuration was + * provided via string. Example: + * + * postgre://username:password@localhost:5432/database?connect_timeout=5&sslmode=1 + */ + foreach (array('connect_timeout', 'options', 'sslmode', 'service') as $key) + { + if (isset($this->$key) && is_string($this->$key) && $this->$key !== '') + { + $this->dsn .= $key."='".$this->$key."' "; + } + } + + $this->dsn = rtrim($this->dsn); + } + + // -------------------------------------------------------------------- + + /** + * Database connection + * + * @param bool $persistent + * @return resource|object + */ + public function db_connect($persistent = FALSE) + { + empty($this->dsn) && $this->_build_dsn(); + $this->conn_id = ($persistent === TRUE) + ? pg_pconnect($this->dsn) + : pg_connect($this->dsn); + + if ($this->conn_id !== FALSE) + { + if ($persistent === TRUE + && pg_connection_status($this->conn_id) === PGSQL_CONNECTION_BAD + && pg_ping($this->conn_id) === FALSE + ) + { + return FALSE; + } + + empty($this->schema) OR $this->simple_query('SET search_path TO '.$this->schema.',public'); + } + + return $this->conn_id; + } + + // -------------------------------------------------------------------- + + /** + * Reconnect + * + * Keep / reestablish the db connection if no queries have been + * sent for a length of time exceeding the server's idle timeout + * + * @return void + */ + public function reconnect() + { + if (pg_ping($this->conn_id) === FALSE) + { + $this->conn_id = FALSE; + } + } + + // -------------------------------------------------------------------- + + /** + * Set client character set + * + * @param string $charset + * @return bool + */ + protected function _db_set_charset($charset) + { + return (pg_set_client_encoding($this->conn_id, $charset) === 0); + } + + // -------------------------------------------------------------------- + + /** + * Database version number + * + * @return string + */ + public function version() + { + if (isset($this->data_cache['version'])) + { + return $this->data_cache['version']; + } + + if ( ! $this->conn_id OR ($pg_version = pg_version($this->conn_id)) === FALSE) + { + return FALSE; + } + + /* If PHP was compiled with PostgreSQL lib versions earlier + * than 7.4, pg_version() won't return the server version + * and so we'll have to fall back to running a query in + * order to get it. + */ + return (isset($pg_version['server']) && preg_match('#^(\d+\.\d+)#', $pg_version['server'], $match)) + ? $this->data_cache['version'] = $match[1] + : parent::version(); + } + + // -------------------------------------------------------------------- + + /** + * Execute the query + * + * @param string $sql an SQL query + * @return resource|object + */ + protected function _execute($sql) + { + return pg_query($this->conn_id, $sql); + } + + // -------------------------------------------------------------------- + + /** + * Begin Transaction + * + * @return bool + */ + protected function _trans_begin() + { + return (bool) pg_query($this->conn_id, 'BEGIN'); + } + + // -------------------------------------------------------------------- + + /** + * Commit Transaction + * + * @return bool + */ + protected function _trans_commit() + { + return (bool) pg_query($this->conn_id, 'COMMIT'); + } + + // -------------------------------------------------------------------- + + /** + * Rollback Transaction + * + * @return bool + */ + protected function _trans_rollback() + { + return (bool) pg_query($this->conn_id, 'ROLLBACK'); + } + + // -------------------------------------------------------------------- + + /** + * Determines if a query is a "write" type. + * + * @param string An SQL query string + * @return bool + */ + public function is_write_type($sql) + { + if (preg_match('#^(INSERT|UPDATE).*RETURNING\s.+(\,\s?.+)*$#is', $sql)) + { + return FALSE; + } + + return parent::is_write_type($sql); + } + + // -------------------------------------------------------------------- + + /** + * Platform-dependent string escape + * + * @param string + * @return string + */ + protected function _escape_str($str) + { + return pg_escape_string($this->conn_id, $str); + } + + // -------------------------------------------------------------------- + + /** + * "Smart" Escape String + * + * Escapes data based on type + * + * @param string $str + * @return mixed + */ + public function escape($str) + { + if (is_php('5.4.4') && (is_string($str) OR (is_object($str) && method_exists($str, '__toString')))) + { + return pg_escape_literal($this->conn_id, $str); + } + elseif (is_bool($str)) + { + return ($str) ? 'TRUE' : 'FALSE'; + } + + return parent::escape($str); + } + + // -------------------------------------------------------------------- + + /** + * Affected Rows + * + * @return int + */ + public function affected_rows() + { + return pg_affected_rows($this->result_id); + } + + // -------------------------------------------------------------------- + + /** + * Insert ID + * + * @return string + */ + public function insert_id() + { + $v = $this->version(); + + $table = (func_num_args() > 0) ? func_get_arg(0) : NULL; + $column = (func_num_args() > 1) ? func_get_arg(1) : NULL; + + if ($table === NULL && $v >= '8.1') + { + $sql = 'SELECT LASTVAL() AS ins_id'; + } + elseif ($table !== NULL) + { + if ($column !== NULL && $v >= '8.0') + { + $sql = 'SELECT pg_get_serial_sequence(\''.$table."', '".$column."') AS seq"; + $query = $this->query($sql); + $query = $query->row(); + $seq = $query->seq; + } + else + { + // seq_name passed in table parameter + $seq = $table; + } + + $sql = 'SELECT CURRVAL(\''.$seq."') AS ins_id"; + } + else + { + return pg_last_oid($this->result_id); + } + + $query = $this->query($sql); + $query = $query->row(); + return (int) $query->ins_id; + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SELECT "table_name" FROM "information_schema"."tables" WHERE "table_schema" = \''.$this->schema."'"; + + if ($prefix_limit !== FALSE && $this->dbprefix !== '') + { + return $sql.' AND "table_name" LIKE \'' + .$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * List column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + return 'SELECT "column_name" + FROM "information_schema"."columns" + WHERE "table_schema" = \''.$this->schema.'\' AND LOWER("table_name") = '.$this->escape(strtolower($table)); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + $sql = 'SELECT "column_name", "data_type", "character_maximum_length", "numeric_precision", "column_default" + FROM "information_schema"."columns" + WHERE "table_schema" = \''.$this->schema.'\' AND LOWER("table_name") = '.$this->escape(strtolower($table)); + + if (($query = $this->query($sql)) === FALSE) + { + return FALSE; + } + $query = $query->result_object(); + + $retval = array(); + for ($i = 0, $c = count($query); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $query[$i]->column_name; + $retval[$i]->type = $query[$i]->data_type; + $retval[$i]->max_length = ($query[$i]->character_maximum_length > 0) ? $query[$i]->character_maximum_length : $query[$i]->numeric_precision; + $retval[$i]->default = $query[$i]->column_default; + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Error + * + * Returns an array containing code and message of the last + * database error that has occurred. + * + * @return array + */ + public function error() + { + return array('code' => '', 'message' => pg_last_error($this->conn_id)); + } + + // -------------------------------------------------------------------- + + /** + * ORDER BY + * + * @param string $orderby + * @param string $direction ASC, DESC or RANDOM + * @param bool $escape + * @return object + */ + public function order_by($orderby, $direction = '', $escape = NULL) + { + $direction = strtoupper(trim($direction)); + if ($direction === 'RANDOM') + { + if ( ! is_float($orderby) && ctype_digit((string) $orderby)) + { + $orderby = ($orderby > 1) + ? (float) '0.'.$orderby + : (float) $orderby; + } + + if (is_float($orderby)) + { + $this->simple_query('SET SEED '.$orderby); + } + + $orderby = $this->_random_keyword[0]; + $direction = ''; + $escape = FALSE; + } + + return parent::order_by($orderby, $direction, $escape); + } + + // -------------------------------------------------------------------- + + /** + * Update statement + * + * Generates a platform-specific update string from the supplied data + * + * @param string $table + * @param array $values + * @return string + */ + protected function _update($table, $values) + { + $this->qb_limit = FALSE; + $this->qb_orderby = array(); + return parent::_update($table, $values); + } + + // -------------------------------------------------------------------- + + /** + * Update_Batch statement + * + * Generates a platform-specific batch update string from the supplied data + * + * @param string $table Table name + * @param array $values Update data + * @param string $index WHERE key + * @return string + */ + protected function _update_batch($table, $values, $index) + { + $ids = array(); + foreach ($values as $key => $val) + { + $ids[] = $val[$index]['value']; + + foreach (array_keys($val) as $field) + { + if ($field !== $index) + { + $final[$val[$field]['field']][] = 'WHEN '.$val[$index]['value'].' THEN '.$val[$field]['value']; + } + } + } + + $cases = ''; + foreach ($final as $k => $v) + { + $cases .= $k.' = (CASE '.$val[$index]['field']."\n" + .implode("\n", $v)."\n" + .'ELSE '.$k.' END), '; + } + + $this->where($val[$index]['field'].' IN('.implode(',', $ids).')', NULL, FALSE); + + return 'UPDATE '.$table.' SET '.substr($cases, 0, -2).$this->_compile_wh('qb_where'); + } + + // -------------------------------------------------------------------- + + /** + * Delete statement + * + * Generates a platform-specific delete string from the supplied data + * + * @param string $table + * @return string + */ + protected function _delete($table) + { + $this->qb_limit = FALSE; + return parent::_delete($table); + } + + // -------------------------------------------------------------------- + + /** + * LIMIT + * + * Generates a platform-specific LIMIT clause + * + * @param string $sql SQL Query + * @return string + */ + protected function _limit($sql) + { + return $sql.' LIMIT '.$this->qb_limit.($this->qb_offset ? ' OFFSET '.$this->qb_offset : ''); + } + + // -------------------------------------------------------------------- + + /** + * Close DB Connection + * + * @return void + */ + protected function _close() + { + pg_close($this->conn_id); + } + +} diff --git a/ci/system/database/drivers/postgre/postgre_forge.php b/ci/system/database/drivers/postgre/postgre_forge.php new file mode 100644 index 0000000..2857fd5 --- /dev/null +++ b/ci/system/database/drivers/postgre/postgre_forge.php @@ -0,0 +1,206 @@ + 'INTEGER', + 'SMALLINT' => 'INTEGER', + 'INT' => 'BIGINT', + 'INT4' => 'BIGINT', + 'INTEGER' => 'BIGINT', + 'INT8' => 'NUMERIC', + 'BIGINT' => 'NUMERIC', + 'REAL' => 'DOUBLE PRECISION', + 'FLOAT' => 'DOUBLE PRECISION' + ); + + /** + * NULL value representation in CREATE/ALTER TABLE statements + * + * @var string + */ + protected $_null = 'NULL'; + + // -------------------------------------------------------------------- + + /** + * Class constructor + * + * @param object &$db Database object + * @return void + */ + public function __construct(&$db) + { + parent::__construct($db); + + if (version_compare($this->db->version(), '9.0', '>')) + { + $this->create_table_if = 'CREATE TABLE IF NOT EXISTS'; + } + } + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if (in_array($alter_type, array('DROP', 'ADD'), TRUE)) + { + return parent::_alter_table($alter_type, $table, $field); + } + + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table); + $sqls = array(); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + if ($field[$i]['_literal'] !== FALSE) + { + return FALSE; + } + + if (version_compare($this->db->version(), '8', '>=') && isset($field[$i]['type'])) + { + $sqls[] = $sql.' ALTER COLUMN '.$this->db->escape_identifiers($field[$i]['name']) + .' TYPE '.$field[$i]['type'].$field[$i]['length']; + } + + if ( ! empty($field[$i]['default'])) + { + $sqls[] = $sql.' ALTER COLUMN '.$this->db->escape_identifiers($field[$i]['name']) + .' SET '.$field[$i]['default']; + } + + if (isset($field[$i]['null'])) + { + $sqls[] = $sql.' ALTER COLUMN '.$this->db->escape_identifiers($field[$i]['name']) + .(trim($field[$i]['null']) === $this->_null ? ' DROP NOT NULL' : ' SET NOT NULL'); + } + + if ( ! empty($field[$i]['new_name'])) + { + $sqls[] = $sql.' RENAME COLUMN '.$this->db->escape_identifiers($field[$i]['name']) + .' TO '.$this->db->escape_identifiers($field[$i]['new_name']); + } + + if ( ! empty($field[$i]['comment'])) + { + $sqls[] = 'COMMENT ON COLUMN ' + .$this->db->escape_identifiers($table).'.'.$this->db->escape_identifiers($field[$i]['name']) + .' IS '.$field[$i]['comment']; + } + } + + return $sqls; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + // Reset field lengths for data types that don't support it + if (isset($attributes['CONSTRAINT']) && stripos($attributes['TYPE'], 'int') !== FALSE) + { + $attributes['CONSTRAINT'] = NULL; + } + + switch (strtoupper($attributes['TYPE'])) + { + case 'TINYINT': + $attributes['TYPE'] = 'SMALLINT'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE) + { + $field['type'] = ($field['type'] === 'NUMERIC') + ? 'BIGSERIAL' + : 'SERIAL'; + } + } + +} diff --git a/ci/system/database/drivers/postgre/postgre_result.php b/ci/system/database/drivers/postgre/postgre_result.php new file mode 100644 index 0000000..5e4145e --- /dev/null +++ b/ci/system/database/drivers/postgre/postgre_result.php @@ -0,0 +1,183 @@ +num_rows) + ? $this->num_rows + : $this->num_rows = pg_num_rows($this->result_id); + } + + // -------------------------------------------------------------------- + + /** + * Number of fields in the result set + * + * @return int + */ + public function num_fields() + { + return pg_num_fields($this->result_id); + } + + // -------------------------------------------------------------------- + + /** + * Fetch Field Names + * + * Generates an array of column names + * + * @return array + */ + public function list_fields() + { + $field_names = array(); + for ($i = 0, $c = $this->num_fields(); $i < $c; $i++) + { + $field_names[] = pg_field_name($this->result_id, $i); + } + + return $field_names; + } + + // -------------------------------------------------------------------- + + /** + * Field data + * + * Generates an array of objects containing field meta-data + * + * @return array + */ + public function field_data() + { + $retval = array(); + for ($i = 0, $c = $this->num_fields(); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = pg_field_name($this->result_id, $i); + $retval[$i]->type = pg_field_type($this->result_id, $i); + $retval[$i]->max_length = pg_field_size($this->result_id, $i); + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Free the result + * + * @return void + */ + public function free_result() + { + if ($this->result_id !== FALSE) + { + pg_free_result($this->result_id); + $this->result_id = FALSE; + } + } + + // -------------------------------------------------------------------- + + /** + * Data Seek + * + * Moves the internal pointer to the desired offset. We call + * this internally before fetching results to make sure the + * result set starts at zero. + * + * @param int $n + * @return bool + */ + public function data_seek($n = 0) + { + return pg_result_seek($this->result_id, $n); + } + + // -------------------------------------------------------------------- + + /** + * Result - associative array + * + * Returns the result set as an array + * + * @return array + */ + protected function _fetch_assoc() + { + return pg_fetch_assoc($this->result_id); + } + + // -------------------------------------------------------------------- + + /** + * Result - object + * + * Returns the result set as an object + * + * @param string $class_name + * @return object + */ + protected function _fetch_object($class_name = 'stdClass') + { + return pg_fetch_object($this->result_id, NULL, $class_name); + } + +} diff --git a/ci/system/database/drivers/postgre/postgre_utility.php b/ci/system/database/drivers/postgre/postgre_utility.php new file mode 100644 index 0000000..c8356d5 --- /dev/null +++ b/ci/system/database/drivers/postgre/postgre_utility.php @@ -0,0 +1,79 @@ +db->display_error('db_unsupported_feature'); + } +} diff --git a/ci/system/database/drivers/sqlite/index.html b/ci/system/database/drivers/sqlite/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/system/database/drivers/sqlite/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/system/database/drivers/sqlite/sqlite_driver.php b/ci/system/database/drivers/sqlite/sqlite_driver.php new file mode 100644 index 0000000..188f00c --- /dev/null +++ b/ci/system/database/drivers/sqlite/sqlite_driver.php @@ -0,0 +1,331 @@ +database, 0666, $error) + : sqlite_open($this->database, 0666, $error); + + isset($error) && log_message('error', $error); + + return $conn_id; + } + + // -------------------------------------------------------------------- + + /** + * Database version number + * + * @return string + */ + public function version() + { + return isset($this->data_cache['version']) + ? $this->data_cache['version'] + : $this->data_cache['version'] = sqlite_libversion(); + } + + // -------------------------------------------------------------------- + + /** + * Execute the query + * + * @param string $sql an SQL query + * @return resource + */ + protected function _execute($sql) + { + return $this->is_write_type($sql) + ? sqlite_exec($this->conn_id, $sql) + : sqlite_query($this->conn_id, $sql); + } + + // -------------------------------------------------------------------- + + /** + * Begin Transaction + * + * @return bool + */ + protected function _trans_begin() + { + return $this->simple_query('BEGIN TRANSACTION'); + } + + // -------------------------------------------------------------------- + + /** + * Commit Transaction + * + * @return bool + */ + protected function _trans_commit() + { + return $this->simple_query('COMMIT'); + } + + // -------------------------------------------------------------------- + + /** + * Rollback Transaction + * + * @return bool + */ + protected function _trans_rollback() + { + return $this->simple_query('ROLLBACK'); + } + + // -------------------------------------------------------------------- + + /** + * Platform-dependant string escape + * + * @param string + * @return string + */ + protected function _escape_str($str) + { + return sqlite_escape_string($str); + } + + // -------------------------------------------------------------------- + + /** + * Affected Rows + * + * @return int + */ + public function affected_rows() + { + return sqlite_changes($this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * Insert ID + * + * @return int + */ + public function insert_id() + { + return sqlite_last_insert_rowid($this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * List table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = "SELECT name FROM sqlite_master WHERE type='table'"; + + if ($prefix_limit !== FALSE && $this->dbprefix != '') + { + return $sql." AND 'name' LIKE '".$this->escape_like_str($this->dbprefix)."%' ".sprintf($this->_like_escape_str, $this->_like_escape_chr); + } + + return $sql; + } + + // -------------------------------------------------------------------- + + /** + * Show column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return bool + */ + protected function _list_columns($table = '') + { + // Not supported + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + if (($query = $this->query('PRAGMA TABLE_INFO('.$this->protect_identifiers($table, TRUE, NULL, FALSE).')')) === FALSE) + { + return FALSE; + } + + $query = $query->result_array(); + if (empty($query)) + { + return FALSE; + } + + $retval = array(); + for ($i = 0, $c = count($query); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $query[$i]['name']; + $retval[$i]->type = $query[$i]['type']; + $retval[$i]->max_length = NULL; + $retval[$i]->default = $query[$i]['dflt_value']; + $retval[$i]->primary_key = isset($query[$i]['pk']) ? (int) $query[$i]['pk'] : 0; + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Error + * + * Returns an array containing code and message of the last + * database error that has occured. + * + * @return array + */ + public function error() + { + $error = array('code' => sqlite_last_error($this->conn_id)); + $error['message'] = sqlite_error_string($error['code']); + return $error; + } + + // -------------------------------------------------------------------- + + /** + * Replace statement + * + * Generates a platform-specific replace string from the supplied data + * + * @param string $table Table name + * @param array $keys INSERT keys + * @param array $values INSERT values + * @return string + */ + protected function _replace($table, $keys, $values) + { + return 'INSERT OR '.parent::_replace($table, $keys, $values); + } + + // -------------------------------------------------------------------- + + /** + * Truncate statement + * + * Generates a platform-specific truncate string from the supplied data + * + * If the database does not support the TRUNCATE statement, + * then this function maps to 'DELETE FROM table' + * + * @param string $table + * @return string + */ + protected function _truncate($table) + { + return 'DELETE FROM '.$table; + } + + // -------------------------------------------------------------------- + + /** + * Close DB Connection + * + * @return void + */ + protected function _close() + { + sqlite_close($this->conn_id); + } + +} diff --git a/ci/system/database/drivers/sqlite/sqlite_forge.php b/ci/system/database/drivers/sqlite/sqlite_forge.php new file mode 100644 index 0000000..60aaa09 --- /dev/null +++ b/ci/system/database/drivers/sqlite/sqlite_forge.php @@ -0,0 +1,206 @@ +db->database) OR ! @unlink($this->db->database)) + { + return ($this->db->db_debug) ? $this->db->display_error('db_unable_to_drop') : FALSE; + } + elseif ( ! empty($this->db->data_cache['db_names'])) + { + $key = array_search(strtolower($this->db->database), array_map('strtolower', $this->db->data_cache['db_names']), TRUE); + if ($key !== FALSE) + { + unset($this->db->data_cache['db_names'][$key]); + } + } + + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @todo implement drop_column(), modify_column() + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if ($alter_type === 'DROP' OR $alter_type === 'CHANGE') + { + // drop_column(): + // BEGIN TRANSACTION; + // CREATE TEMPORARY TABLE t1_backup(a,b); + // INSERT INTO t1_backup SELECT a,b FROM t1; + // DROP TABLE t1; + // CREATE TABLE t1(a,b); + // INSERT INTO t1 SELECT a,b FROM t1_backup; + // DROP TABLE t1_backup; + // COMMIT; + + return FALSE; + } + + return parent::_alter_table($alter_type, $table, $field); + } + + // -------------------------------------------------------------------- + + /** + * Process column + * + * @param array $field + * @return string + */ + protected function _process_column($field) + { + return $this->db->escape_identifiers($field['name']) + .' '.$field['type'] + .$field['auto_increment'] + .$field['null'] + .$field['unique'] + .$field['default']; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'ENUM': + case 'SET': + $attributes['TYPE'] = 'TEXT'; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE && stripos($field['type'], 'int') !== FALSE) + { + $field['type'] = 'INTEGER PRIMARY KEY'; + $field['default'] = ''; + $field['null'] = ''; + $field['unique'] = ''; + $field['auto_increment'] = ' AUTOINCREMENT'; + + $this->primary_keys = array(); + } + } + +} diff --git a/ci/system/database/drivers/sqlite/sqlite_result.php b/ci/system/database/drivers/sqlite/sqlite_result.php new file mode 100644 index 0000000..1df9025 --- /dev/null +++ b/ci/system/database/drivers/sqlite/sqlite_result.php @@ -0,0 +1,165 @@ +num_rows) + ? $this->num_rows + : $this->num_rows = @sqlite_num_rows($this->result_id); + } + + // -------------------------------------------------------------------- + + /** + * Number of fields in the result set + * + * @return int + */ + public function num_fields() + { + return @sqlite_num_fields($this->result_id); + } + + // -------------------------------------------------------------------- + + /** + * Fetch Field Names + * + * Generates an array of column names + * + * @return array + */ + public function list_fields() + { + $field_names = array(); + for ($i = 0, $c = $this->num_fields(); $i < $c; $i++) + { + $field_names[$i] = sqlite_field_name($this->result_id, $i); + } + + return $field_names; + } + + // -------------------------------------------------------------------- + + /** + * Field data + * + * Generates an array of objects containing field meta-data + * + * @return array + */ + public function field_data() + { + $retval = array(); + for ($i = 0, $c = $this->num_fields(); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = sqlite_field_name($this->result_id, $i); + $retval[$i]->type = NULL; + $retval[$i]->max_length = NULL; + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Data Seek + * + * Moves the internal pointer to the desired offset. We call + * this internally before fetching results to make sure the + * result set starts at zero. + * + * @param int $n + * @return bool + */ + public function data_seek($n = 0) + { + return sqlite_seek($this->result_id, $n); + } + + // -------------------------------------------------------------------- + + /** + * Result - associative array + * + * Returns the result set as an array + * + * @return array + */ + protected function _fetch_assoc() + { + return sqlite_fetch_array($this->result_id); + } + + // -------------------------------------------------------------------- + + /** + * Result - object + * + * Returns the result set as an object + * + * @param string $class_name + * @return object + */ + protected function _fetch_object($class_name = 'stdClass') + { + return sqlite_fetch_object($this->result_id, $class_name); + } + +} diff --git a/ci/system/database/drivers/sqlite/sqlite_utility.php b/ci/system/database/drivers/sqlite/sqlite_utility.php new file mode 100644 index 0000000..5f9adf2 --- /dev/null +++ b/ci/system/database/drivers/sqlite/sqlite_utility.php @@ -0,0 +1,62 @@ +db->display_error('db_unsupported_feature'); + } + +} diff --git a/ci/system/database/drivers/sqlite3/index.html b/ci/system/database/drivers/sqlite3/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/system/database/drivers/sqlite3/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/system/database/drivers/sqlite3/sqlite3_driver.php b/ci/system/database/drivers/sqlite3/sqlite3_driver.php new file mode 100644 index 0000000..be79ddd --- /dev/null +++ b/ci/system/database/drivers/sqlite3/sqlite3_driver.php @@ -0,0 +1,345 @@ +password) + ? new SQLite3($this->database) + : new SQLite3($this->database, SQLITE3_OPEN_READWRITE | SQLITE3_OPEN_CREATE, $this->password); + } + catch (Exception $e) + { + return FALSE; + } + } + + // -------------------------------------------------------------------- + + /** + * Database version number + * + * @return string + */ + public function version() + { + if (isset($this->data_cache['version'])) + { + return $this->data_cache['version']; + } + + $version = SQLite3::version(); + return $this->data_cache['version'] = $version['versionString']; + } + + // -------------------------------------------------------------------- + + /** + * Execute the query + * + * @todo Implement use of SQLite3::querySingle(), if needed + * @param string $sql + * @return mixed SQLite3Result object or bool + */ + protected function _execute($sql) + { + return $this->is_write_type($sql) + ? $this->conn_id->exec($sql) + : $this->conn_id->query($sql); + } + + // -------------------------------------------------------------------- + + /** + * Begin Transaction + * + * @return bool + */ + protected function _trans_begin() + { + return $this->conn_id->exec('BEGIN TRANSACTION'); + } + + // -------------------------------------------------------------------- + + /** + * Commit Transaction + * + * @return bool + */ + protected function _trans_commit() + { + return $this->conn_id->exec('END TRANSACTION'); + } + + // -------------------------------------------------------------------- + + /** + * Rollback Transaction + * + * @return bool + */ + protected function _trans_rollback() + { + return $this->conn_id->exec('ROLLBACK'); + } + + // -------------------------------------------------------------------- + + /** + * Platform-dependent string escape + * + * @param string + * @return string + */ + protected function _escape_str($str) + { + return $this->conn_id->escapeString($str); + } + + // -------------------------------------------------------------------- + + /** + * Affected Rows + * + * @return int + */ + public function affected_rows() + { + return $this->conn_id->changes(); + } + + // -------------------------------------------------------------------- + + /** + * Insert ID + * + * @return int + */ + public function insert_id() + { + return $this->conn_id->lastInsertRowID(); + } + + // -------------------------------------------------------------------- + + /** + * Show table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool $prefix_limit + * @return string + */ + protected function _list_tables($prefix_limit = FALSE) + { + return 'SELECT "NAME" FROM "SQLITE_MASTER" WHERE "TYPE" = \'table\'' + .(($prefix_limit !== FALSE && $this->dbprefix != '') + ? ' AND "NAME" LIKE \''.$this->escape_like_str($this->dbprefix).'%\' '.sprintf($this->_like_escape_str, $this->_like_escape_chr) + : ''); + } + + // -------------------------------------------------------------------- + + /** + * Fetch Field Names + * + * @param string $table Table name + * @return array + */ + public function list_fields($table) + { + if (($result = $this->query('PRAGMA TABLE_INFO('.$this->protect_identifiers($table, TRUE, NULL, FALSE).')')) === FALSE) + { + return FALSE; + } + + $fields = array(); + foreach ($result->result_array() as $row) + { + $fields[] = $row['name']; + } + + return $fields; + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + if (($query = $this->query('PRAGMA TABLE_INFO('.$this->protect_identifiers($table, TRUE, NULL, FALSE).')')) === FALSE) + { + return FALSE; + } + + $query = $query->result_array(); + if (empty($query)) + { + return FALSE; + } + + $retval = array(); + for ($i = 0, $c = count($query); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $query[$i]['name']; + $retval[$i]->type = $query[$i]['type']; + $retval[$i]->max_length = NULL; + $retval[$i]->default = $query[$i]['dflt_value']; + $retval[$i]->primary_key = isset($query[$i]['pk']) ? (int) $query[$i]['pk'] : 0; + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Error + * + * Returns an array containing code and message of the last + * database error that has occurred. + * + * @return array + */ + public function error() + { + return array('code' => $this->conn_id->lastErrorCode(), 'message' => $this->conn_id->lastErrorMsg()); + } + + // -------------------------------------------------------------------- + + /** + * Replace statement + * + * Generates a platform-specific replace string from the supplied data + * + * @param string $table Table name + * @param array $keys INSERT keys + * @param array $values INSERT values + * @return string + */ + protected function _replace($table, $keys, $values) + { + return 'INSERT OR '.parent::_replace($table, $keys, $values); + } + + // -------------------------------------------------------------------- + + /** + * Truncate statement + * + * Generates a platform-specific truncate string from the supplied data + * + * If the database does not support the TRUNCATE statement, + * then this method maps to 'DELETE FROM table' + * + * @param string $table + * @return string + */ + protected function _truncate($table) + { + return 'DELETE FROM '.$table; + } + + // -------------------------------------------------------------------- + + /** + * Close DB Connection + * + * @return void + */ + protected function _close() + { + $this->conn_id->close(); + } + +} diff --git a/ci/system/database/drivers/sqlite3/sqlite3_forge.php b/ci/system/database/drivers/sqlite3/sqlite3_forge.php new file mode 100644 index 0000000..5658b3e --- /dev/null +++ b/ci/system/database/drivers/sqlite3/sqlite3_forge.php @@ -0,0 +1,226 @@ +db->version(), '3.3', '<')) + { + $this->_create_table_if = FALSE; + $this->_drop_table_if = FALSE; + } + } + + // -------------------------------------------------------------------- + + /** + * Create database + * + * @param string $db_name + * @return bool + */ + public function create_database($db_name) + { + // In SQLite, a database is created when you connect to the database. + // We'll return TRUE so that an error isn't generated + return TRUE; + } + + // -------------------------------------------------------------------- + + /** + * Drop database + * + * @param string $db_name (ignored) + * @return bool + */ + public function drop_database($db_name) + { + // In SQLite, a database is dropped when we delete a file + if (file_exists($this->db->database)) + { + // We need to close the pseudo-connection first + $this->db->close(); + if ( ! @unlink($this->db->database)) + { + return $this->db->db_debug ? $this->db->display_error('db_unable_to_drop') : FALSE; + } + elseif ( ! empty($this->db->data_cache['db_names'])) + { + $key = array_search(strtolower($this->db->database), array_map('strtolower', $this->db->data_cache['db_names']), TRUE); + if ($key !== FALSE) + { + unset($this->db->data_cache['db_names'][$key]); + } + } + + return TRUE; + } + + return $this->db->db_debug ? $this->db->display_error('db_unable_to_drop') : FALSE; + } + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @todo implement drop_column(), modify_column() + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if ($alter_type === 'DROP' OR $alter_type === 'CHANGE') + { + // drop_column(): + // BEGIN TRANSACTION; + // CREATE TEMPORARY TABLE t1_backup(a,b); + // INSERT INTO t1_backup SELECT a,b FROM t1; + // DROP TABLE t1; + // CREATE TABLE t1(a,b); + // INSERT INTO t1 SELECT a,b FROM t1_backup; + // DROP TABLE t1_backup; + // COMMIT; + + return FALSE; + } + + return parent::_alter_table($alter_type, $table, $field); + } + + // -------------------------------------------------------------------- + + /** + * Process column + * + * @param array $field + * @return string + */ + protected function _process_column($field) + { + return $this->db->escape_identifiers($field['name']) + .' '.$field['type'] + .$field['auto_increment'] + .$field['null'] + .$field['unique'] + .$field['default']; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + switch (strtoupper($attributes['TYPE'])) + { + case 'ENUM': + case 'SET': + $attributes['TYPE'] = 'TEXT'; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE && stripos($field['type'], 'int') !== FALSE) + { + $field['type'] = 'INTEGER PRIMARY KEY'; + $field['default'] = ''; + $field['null'] = ''; + $field['unique'] = ''; + $field['auto_increment'] = ' AUTOINCREMENT'; + + $this->primary_keys = array(); + } + } + +} diff --git a/ci/system/database/drivers/sqlite3/sqlite3_result.php b/ci/system/database/drivers/sqlite3/sqlite3_result.php new file mode 100644 index 0000000..47fe9d2 --- /dev/null +++ b/ci/system/database/drivers/sqlite3/sqlite3_result.php @@ -0,0 +1,195 @@ +result_id->numColumns(); + } + + // -------------------------------------------------------------------- + + /** + * Fetch Field Names + * + * Generates an array of column names + * + * @return array + */ + public function list_fields() + { + $field_names = array(); + for ($i = 0, $c = $this->num_fields(); $i < $c; $i++) + { + $field_names[] = $this->result_id->columnName($i); + } + + return $field_names; + } + + // -------------------------------------------------------------------- + + /** + * Field data + * + * Generates an array of objects containing field meta-data + * + * @return array + */ + public function field_data() + { + static $data_types = array( + SQLITE3_INTEGER => 'integer', + SQLITE3_FLOAT => 'float', + SQLITE3_TEXT => 'text', + SQLITE3_BLOB => 'blob', + SQLITE3_NULL => 'null' + ); + + $retval = array(); + for ($i = 0, $c = $this->num_fields(); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $this->result_id->columnName($i); + + $type = $this->result_id->columnType($i); + $retval[$i]->type = isset($data_types[$type]) ? $data_types[$type] : $type; + + $retval[$i]->max_length = NULL; + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Free the result + * + * @return void + */ + public function free_result() + { + if (is_object($this->result_id)) + { + $this->result_id->finalize(); + $this->result_id = NULL; + } + } + + // -------------------------------------------------------------------- + + /** + * Result - associative array + * + * Returns the result set as an array + * + * @return array + */ + protected function _fetch_assoc() + { + return $this->result_id->fetchArray(SQLITE3_ASSOC); + } + + // -------------------------------------------------------------------- + + /** + * Result - object + * + * Returns the result set as an object + * + * @param string $class_name + * @return object + */ + protected function _fetch_object($class_name = 'stdClass') + { + // No native support for fetching rows as objects + if (($row = $this->result_id->fetchArray(SQLITE3_ASSOC)) === FALSE) + { + return FALSE; + } + elseif ($class_name === 'stdClass') + { + return (object) $row; + } + + $class_name = new $class_name(); + foreach (array_keys($row) as $key) + { + $class_name->$key = $row[$key]; + } + + return $class_name; + } + + // -------------------------------------------------------------------- + + /** + * Data Seek + * + * Moves the internal pointer to the desired offset. We call + * this internally before fetching results to make sure the + * result set starts at zero. + * + * @param int $n (ignored) + * @return array + */ + public function data_seek($n = 0) + { + // Only resetting to the start of the result set is supported + return ($n > 0) ? FALSE : $this->result_id->reset(); + } + +} diff --git a/ci/system/database/drivers/sqlite3/sqlite3_utility.php b/ci/system/database/drivers/sqlite3/sqlite3_utility.php new file mode 100644 index 0000000..90316bc --- /dev/null +++ b/ci/system/database/drivers/sqlite3/sqlite3_utility.php @@ -0,0 +1,62 @@ +db->display_error('db_unsupported_feature'); + } + +} diff --git a/ci/system/database/drivers/sqlsrv/index.html b/ci/system/database/drivers/sqlsrv/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/system/database/drivers/sqlsrv/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/system/database/drivers/sqlsrv/sqlsrv_driver.php b/ci/system/database/drivers/sqlsrv/sqlsrv_driver.php new file mode 100644 index 0000000..7877794 --- /dev/null +++ b/ci/system/database/drivers/sqlsrv/sqlsrv_driver.php @@ -0,0 +1,544 @@ +scrollable === NULL) + { + $this->scrollable = defined('SQLSRV_CURSOR_CLIENT_BUFFERED') + ? SQLSRV_CURSOR_CLIENT_BUFFERED + : FALSE; + } + } + + // -------------------------------------------------------------------- + + /** + * Database connection + * + * @param bool $pooling + * @return resource + */ + public function db_connect($pooling = FALSE) + { + $charset = in_array(strtolower($this->char_set), array('utf-8', 'utf8'), TRUE) + ? 'UTF-8' : SQLSRV_ENC_CHAR; + + $connection = array( + 'UID' => empty($this->username) ? '' : $this->username, + 'PWD' => empty($this->password) ? '' : $this->password, + 'Database' => $this->database, + 'ConnectionPooling' => ($pooling === TRUE) ? 1 : 0, + 'CharacterSet' => $charset, + 'Encrypt' => ($this->encrypt === TRUE) ? 1 : 0, + 'ReturnDatesAsStrings' => 1 + ); + + // If the username and password are both empty, assume this is a + // 'Windows Authentication Mode' connection. + if (empty($connection['UID']) && empty($connection['PWD'])) + { + unset($connection['UID'], $connection['PWD']); + } + + if (FALSE !== ($this->conn_id = sqlsrv_connect($this->hostname, $connection))) + { + // Determine how identifiers are escaped + $query = $this->query('SELECT CASE WHEN (@@OPTIONS | 256) = @@OPTIONS THEN 1 ELSE 0 END AS qi'); + $query = $query->row_array(); + $this->_quoted_identifier = empty($query) ? FALSE : (bool) $query['qi']; + $this->_escape_char = ($this->_quoted_identifier) ? '"' : array('[', ']'); + } + + return $this->conn_id; + } + + // -------------------------------------------------------------------- + + /** + * Select the database + * + * @param string $database + * @return bool + */ + public function db_select($database = '') + { + if ($database === '') + { + $database = $this->database; + } + + if ($this->_execute('USE '.$this->escape_identifiers($database))) + { + $this->database = $database; + $this->data_cache = array(); + return TRUE; + } + + return FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Execute the query + * + * @param string $sql an SQL query + * @return resource + */ + protected function _execute($sql) + { + return ($this->scrollable === FALSE OR $this->is_write_type($sql)) + ? sqlsrv_query($this->conn_id, $sql) + : sqlsrv_query($this->conn_id, $sql, NULL, array('Scrollable' => $this->scrollable)); + } + + // -------------------------------------------------------------------- + + /** + * Begin Transaction + * + * @return bool + */ + protected function _trans_begin() + { + return sqlsrv_begin_transaction($this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * Commit Transaction + * + * @return bool + */ + protected function _trans_commit() + { + return sqlsrv_commit($this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * Rollback Transaction + * + * @return bool + */ + protected function _trans_rollback() + { + return sqlsrv_rollback($this->conn_id); + } + + // -------------------------------------------------------------------- + + /** + * Affected Rows + * + * @return int + */ + public function affected_rows() + { + return sqlsrv_rows_affected($this->result_id); + } + + // -------------------------------------------------------------------- + + /** + * Insert ID + * + * Returns the last id created in the Identity column. + * + * @return string + */ + public function insert_id() + { + return $this->query('SELECT SCOPE_IDENTITY() AS insert_id')->row()->insert_id; + } + + // -------------------------------------------------------------------- + + /** + * Database version number + * + * @return string + */ + public function version() + { + if (isset($this->data_cache['version'])) + { + return $this->data_cache['version']; + } + + if ( ! $this->conn_id OR ($info = sqlsrv_server_info($this->conn_id)) === FALSE) + { + return FALSE; + } + + return $this->data_cache['version'] = $info['SQLServerVersion']; + } + + // -------------------------------------------------------------------- + + /** + * List table query + * + * Generates a platform-specific query string so that the table names can be fetched + * + * @param bool + * @return string $prefix_limit + */ + protected function _list_tables($prefix_limit = FALSE) + { + $sql = 'SELECT '.$this->escape_identifiers('name') + .' FROM '.$this->escape_identifiers('sysobjects') + .' WHERE '.$this->escape_identifiers('type')." = 'U'"; + + if ($prefix_limit === TRUE && $this->dbprefix !== '') + { + $sql .= ' AND '.$this->escape_identifiers('name')." LIKE '".$this->escape_like_str($this->dbprefix)."%' " + .sprintf($this->_escape_like_str, $this->_escape_like_chr); + } + + return $sql.' ORDER BY '.$this->escape_identifiers('name'); + } + + // -------------------------------------------------------------------- + + /** + * List column query + * + * Generates a platform-specific query string so that the column names can be fetched + * + * @param string $table + * @return string + */ + protected function _list_columns($table = '') + { + return 'SELECT COLUMN_NAME + FROM INFORMATION_SCHEMA.Columns + WHERE UPPER(TABLE_NAME) = '.$this->escape(strtoupper($table)); + } + + // -------------------------------------------------------------------- + + /** + * Returns an object with field data + * + * @param string $table + * @return array + */ + public function field_data($table) + { + $sql = 'SELECT COLUMN_NAME, DATA_TYPE, CHARACTER_MAXIMUM_LENGTH, NUMERIC_PRECISION, COLUMN_DEFAULT + FROM INFORMATION_SCHEMA.Columns + WHERE UPPER(TABLE_NAME) = '.$this->escape(strtoupper($table)); + + if (($query = $this->query($sql)) === FALSE) + { + return FALSE; + } + $query = $query->result_object(); + + $retval = array(); + for ($i = 0, $c = count($query); $i < $c; $i++) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $query[$i]->COLUMN_NAME; + $retval[$i]->type = $query[$i]->DATA_TYPE; + $retval[$i]->max_length = ($query[$i]->CHARACTER_MAXIMUM_LENGTH > 0) ? $query[$i]->CHARACTER_MAXIMUM_LENGTH : $query[$i]->NUMERIC_PRECISION; + $retval[$i]->default = $query[$i]->COLUMN_DEFAULT; + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Error + * + * Returns an array containing code and message of the last + * database error that has occurred. + * + * @return array + */ + public function error() + { + $error = array('code' => '00000', 'message' => ''); + $sqlsrv_errors = sqlsrv_errors(SQLSRV_ERR_ERRORS); + + if ( ! is_array($sqlsrv_errors)) + { + return $error; + } + + $sqlsrv_error = array_shift($sqlsrv_errors); + if (isset($sqlsrv_error['SQLSTATE'])) + { + $error['code'] = isset($sqlsrv_error['code']) ? $sqlsrv_error['SQLSTATE'].'/'.$sqlsrv_error['code'] : $sqlsrv_error['SQLSTATE']; + } + elseif (isset($sqlsrv_error['code'])) + { + $error['code'] = $sqlsrv_error['code']; + } + + if (isset($sqlsrv_error['message'])) + { + $error['message'] = $sqlsrv_error['message']; + } + + return $error; + } + + // -------------------------------------------------------------------- + + /** + * Update statement + * + * Generates a platform-specific update string from the supplied data + * + * @param string $table + * @param array $values + * @return string + */ + protected function _update($table, $values) + { + $this->qb_limit = FALSE; + $this->qb_orderby = array(); + return parent::_update($table, $values); + } + + // -------------------------------------------------------------------- + + /** + * Truncate statement + * + * Generates a platform-specific truncate string from the supplied data + * + * If the database does not support the TRUNCATE statement, + * then this method maps to 'DELETE FROM table' + * + * @param string $table + * @return string + */ + protected function _truncate($table) + { + return 'TRUNCATE TABLE '.$table; + } + + // -------------------------------------------------------------------- + + /** + * Delete statement + * + * Generates a platform-specific delete string from the supplied data + * + * @param string $table + * @return string + */ + protected function _delete($table) + { + if ($this->qb_limit) + { + return 'WITH ci_delete AS (SELECT TOP '.$this->qb_limit.' * FROM '.$table.$this->_compile_wh('qb_where').') DELETE FROM ci_delete'; + } + + return parent::_delete($table); + } + + // -------------------------------------------------------------------- + + /** + * LIMIT + * + * Generates a platform-specific LIMIT clause + * + * @param string $sql SQL Query + * @return string + */ + protected function _limit($sql) + { + // As of SQL Server 2012 (11.0.*) OFFSET is supported + if (version_compare($this->version(), '11', '>=')) + { + // SQL Server OFFSET-FETCH can be used only with the ORDER BY clause + empty($this->qb_orderby) && $sql .= ' ORDER BY 1'; + + return $sql.' OFFSET '.(int) $this->qb_offset.' ROWS FETCH NEXT '.$this->qb_limit.' ROWS ONLY'; + } + + $limit = $this->qb_offset + $this->qb_limit; + + // An ORDER BY clause is required for ROW_NUMBER() to work + if ($this->qb_offset && ! empty($this->qb_orderby)) + { + $orderby = $this->_compile_order_by(); + + // We have to strip the ORDER BY clause + $sql = trim(substr($sql, 0, strrpos($sql, $orderby))); + + // Get the fields to select from our subquery, so that we can avoid CI_rownum appearing in the actual results + if (count($this->qb_select) === 0 OR strpos(implode(',', $this->qb_select), '*') !== FALSE) + { + $select = '*'; // Inevitable + } + else + { + // Use only field names and their aliases, everything else is out of our scope. + $select = array(); + $field_regexp = ($this->_quoted_identifier) + ? '("[^\"]+")' : '(\[[^\]]+\])'; + for ($i = 0, $c = count($this->qb_select); $i < $c; $i++) + { + $select[] = preg_match('/(?:\s|\.)'.$field_regexp.'$/i', $this->qb_select[$i], $m) + ? $m[1] : $this->qb_select[$i]; + } + $select = implode(', ', $select); + } + + return 'SELECT '.$select." FROM (\n\n" + .preg_replace('/^(SELECT( DISTINCT)?)/i', '\\1 ROW_NUMBER() OVER('.trim($orderby).') AS '.$this->escape_identifiers('CI_rownum').', ', $sql) + ."\n\n) ".$this->escape_identifiers('CI_subquery') + ."\nWHERE ".$this->escape_identifiers('CI_rownum').' BETWEEN '.($this->qb_offset + 1).' AND '.$limit; + } + + return preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.$limit.' ', $sql); + } + + // -------------------------------------------------------------------- + + /** + * Insert batch statement + * + * Generates a platform-specific insert string from the supplied data. + * + * @param string $table Table name + * @param array $keys INSERT keys + * @param array $values INSERT values + * @return string|bool + */ + protected function _insert_batch($table, $keys, $values) + { + // Multiple-value inserts are only supported as of SQL Server 2008 + if (version_compare($this->version(), '10', '>=')) + { + return parent::_insert_batch($table, $keys, $values); + } + + return ($this->db_debug) ? $this->display_error('db_unsupported_feature') : FALSE; + } + + // -------------------------------------------------------------------- + + /** + * Close DB Connection + * + * @return void + */ + protected function _close() + { + sqlsrv_close($this->conn_id); + } + +} diff --git a/ci/system/database/drivers/sqlsrv/sqlsrv_forge.php b/ci/system/database/drivers/sqlsrv/sqlsrv_forge.php new file mode 100644 index 0000000..dca7f75 --- /dev/null +++ b/ci/system/database/drivers/sqlsrv/sqlsrv_forge.php @@ -0,0 +1,150 @@ + 'SMALLINT', + 'SMALLINT' => 'INT', + 'INT' => 'BIGINT', + 'REAL' => 'FLOAT' + ); + + // -------------------------------------------------------------------- + + /** + * ALTER TABLE + * + * @param string $alter_type ALTER type + * @param string $table Table name + * @param mixed $field Column definition + * @return string|string[] + */ + protected function _alter_table($alter_type, $table, $field) + { + if (in_array($alter_type, array('ADD', 'DROP'), TRUE)) + { + return parent::_alter_table($alter_type, $table, $field); + } + + $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table).' ALTER COLUMN '; + $sqls = array(); + for ($i = 0, $c = count($field); $i < $c; $i++) + { + $sqls[] = $sql.$this->_process_column($field[$i]); + } + + return $sqls; + } + + // -------------------------------------------------------------------- + + /** + * Field attribute TYPE + * + * Performs a data type mapping between different databases. + * + * @param array &$attributes + * @return void + */ + protected function _attr_type(&$attributes) + { + if (isset($attributes['CONSTRAINT']) && strpos($attributes['TYPE'], 'INT') !== FALSE) + { + unset($attributes['CONSTRAINT']); + } + + switch (strtoupper($attributes['TYPE'])) + { + case 'MEDIUMINT': + $attributes['TYPE'] = 'INTEGER'; + $attributes['UNSIGNED'] = FALSE; + return; + case 'INTEGER': + $attributes['TYPE'] = 'INT'; + return; + default: return; + } + } + + // -------------------------------------------------------------------- + + /** + * Field attribute AUTO_INCREMENT + * + * @param array &$attributes + * @param array &$field + * @return void + */ + protected function _attr_auto_increment(&$attributes, &$field) + { + if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE && stripos($field['type'], 'int') !== FALSE) + { + $field['auto_increment'] = ' IDENTITY(1,1)'; + } + } + +} diff --git a/ci/system/database/drivers/sqlsrv/sqlsrv_result.php b/ci/system/database/drivers/sqlsrv/sqlsrv_result.php new file mode 100644 index 0000000..a3a582b --- /dev/null +++ b/ci/system/database/drivers/sqlsrv/sqlsrv_result.php @@ -0,0 +1,194 @@ +scrollable = $driver_object->scrollable; + } + + // -------------------------------------------------------------------- + + /** + * Number of rows in the result set + * + * @return int + */ + public function num_rows() + { + // sqlsrv_num_rows() doesn't work with the FORWARD and DYNAMIC cursors (FALSE is the same as FORWARD) + if ( ! in_array($this->scrollable, array(FALSE, SQLSRV_CURSOR_FORWARD, SQLSRV_CURSOR_DYNAMIC), TRUE)) + { + return parent::num_rows(); + } + + return is_int($this->num_rows) + ? $this->num_rows + : $this->num_rows = sqlsrv_num_rows($this->result_id); + } + + // -------------------------------------------------------------------- + + /** + * Number of fields in the result set + * + * @return int + */ + public function num_fields() + { + return @sqlsrv_num_fields($this->result_id); + } + + // -------------------------------------------------------------------- + + /** + * Fetch Field Names + * + * Generates an array of column names + * + * @return array + */ + public function list_fields() + { + $field_names = array(); + foreach (sqlsrv_field_metadata($this->result_id) as $offset => $field) + { + $field_names[] = $field['Name']; + } + + return $field_names; + } + + // -------------------------------------------------------------------- + + /** + * Field data + * + * Generates an array of objects containing field meta-data + * + * @return array + */ + public function field_data() + { + $retval = array(); + foreach (sqlsrv_field_metadata($this->result_id) as $i => $field) + { + $retval[$i] = new stdClass(); + $retval[$i]->name = $field['Name']; + $retval[$i]->type = $field['Type']; + $retval[$i]->max_length = $field['Size']; + } + + return $retval; + } + + // -------------------------------------------------------------------- + + /** + * Free the result + * + * @return void + */ + public function free_result() + { + if (is_resource($this->result_id)) + { + sqlsrv_free_stmt($this->result_id); + $this->result_id = FALSE; + } + } + + // -------------------------------------------------------------------- + + /** + * Result - associative array + * + * Returns the result set as an array + * + * @return array + */ + protected function _fetch_assoc() + { + return sqlsrv_fetch_array($this->result_id, SQLSRV_FETCH_ASSOC); + } + + // -------------------------------------------------------------------- + + /** + * Result - object + * + * Returns the result set as an object + * + * @param string $class_name + * @return object + */ + protected function _fetch_object($class_name = 'stdClass') + { + return sqlsrv_fetch_object($this->result_id, $class_name); + } + +} diff --git a/ci/system/database/drivers/sqlsrv/sqlsrv_utility.php b/ci/system/database/drivers/sqlsrv/sqlsrv_utility.php new file mode 100644 index 0000000..e51bc72 --- /dev/null +++ b/ci/system/database/drivers/sqlsrv/sqlsrv_utility.php @@ -0,0 +1,78 @@ +db->display_error('db_unsupported_feature'); + } + +} diff --git a/ci/system/database/index.html b/ci/system/database/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/system/database/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/system/fonts/index.html b/ci/system/fonts/index.html new file mode 100644 index 0000000..b702fbc --- /dev/null +++ b/ci/system/fonts/index.html @@ -0,0 +1,11 @@ + + + + 403 Forbidden + + + +

Directory access is forbidden.

+ + + diff --git a/ci/system/fonts/texb.ttf b/ci/system/fonts/texb.ttf new file mode 100644 index 0000000..383c88b Binary files /dev/null and b/ci/system/fonts/texb.ttf differ diff --git a/ci/system/helpers/array_helper.php b/ci/system/helpers/array_helper.php new file mode 100644 index 0000000..0617fde --- /dev/null +++ b/ci/system/helpers/array_helper.php @@ -0,0 +1,116 @@ + '', + 'img_path' => '', + 'img_url' => '', + 'img_width' => '150', + 'img_height' => '30', + 'font_path' => '', + 'expiration' => 7200, + 'word_length' => 8, + 'font_size' => 16, + 'img_id' => '', + 'pool' => '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ', + 'colors' => array( + 'background' => array(255,255,255), + 'border' => array(153,102,102), + 'text' => array(204,153,153), + 'grid' => array(255,182,182) + ) + ); + + foreach ($defaults as $key => $val) + { + if ( ! is_array($data) && empty($$key)) + { + $$key = $val; + } + else + { + $$key = isset($data[$key]) ? $data[$key] : $val; + } + } + + if ( ! extension_loaded('gd')) + { + log_message('error', 'create_captcha(): GD extension is not loaded.'); + return FALSE; + } + + if ($img_path === '' OR $img_url === '') + { + log_message('error', 'create_captcha(): $img_path and $img_url are required.'); + return FALSE; + } + + if ( ! is_dir($img_path) OR ! is_really_writable($img_path)) + { + log_message('error', "create_captcha(): '{$img_path}' is not a dir, nor is it writable."); + return FALSE; + } + + // ----------------------------------- + // Remove old images + // ----------------------------------- + + $now = microtime(TRUE); + + $current_dir = @opendir($img_path); + while ($filename = @readdir($current_dir)) + { + if (in_array(substr($filename, -4), array('.jpg', '.png')) + && (str_replace(array('.jpg', '.png'), '', $filename) + $expiration) < $now) + { + @unlink($img_path.$filename); + } + } + + @closedir($current_dir); + + // ----------------------------------- + // Do we have a "word" yet? + // ----------------------------------- + + if (empty($word)) + { + $word = ''; + $pool_length = strlen($pool); + $rand_max = $pool_length - 1; + + // PHP7 or a suitable polyfill + if (function_exists('random_int')) + { + try + { + for ($i = 0; $i < $word_length; $i++) + { + $word .= $pool[random_int(0, $rand_max)]; + } + } + catch (Exception $e) + { + // This means fallback to the next possible + // alternative to random_int() + $word = ''; + } + } + } + + if (empty($word)) + { + // Nobody will have a larger character pool than + // 256 characters, but let's handle it just in case ... + // + // No, I do not care that the fallback to mt_rand() can + // handle it; if you trigger this, you're very obviously + // trying to break it. -- Narf + if ($pool_length > 256) + { + return FALSE; + } + + // We'll try using the operating system's PRNG first, + // which we can access through CI_Security::get_random_bytes() + $security = get_instance()->security; + + // To avoid numerous get_random_bytes() calls, we'll + // just try fetching as much bytes as we need at once. + if (($bytes = $security->get_random_bytes($pool_length)) !== FALSE) + { + $byte_index = $word_index = 0; + while ($word_index < $word_length) + { + // Do we have more random data to use? + // It could be exhausted by previous iterations + // ignoring bytes higher than $rand_max. + if ($byte_index === $pool_length) + { + // No failures should be possible if the + // first get_random_bytes() call didn't + // return FALSE, but still ... + for ($i = 0; $i < 5; $i++) + { + if (($bytes = $security->get_random_bytes($pool_length)) === FALSE) + { + continue; + } + + $byte_index = 0; + break; + } + + if ($bytes === FALSE) + { + // Sadly, this means fallback to mt_rand() + $word = ''; + break; + } + } + + list(, $rand_index) = unpack('C', $bytes[$byte_index++]); + if ($rand_index > $rand_max) + { + continue; + } + + $word .= $pool[$rand_index]; + $word_index++; + } + } + } + + if (empty($word)) + { + for ($i = 0; $i < $word_length; $i++) + { + $word .= $pool[mt_rand(0, $rand_max)]; + } + } + elseif ( ! is_string($word)) + { + $word = (string) $word; + } + + // ----------------------------------- + // Determine angle and position + // ----------------------------------- + $length = strlen($word); + $angle = ($length >= 6) ? mt_rand(-($length-6), ($length-6)) : 0; + $x_axis = mt_rand(6, (360/$length)-16); + $y_axis = ($angle >= 0) ? mt_rand($img_height, $img_width) : mt_rand(6, $img_height); + + // Create image + // PHP.net recommends imagecreatetruecolor(), but it isn't always available + $im = function_exists('imagecreatetruecolor') + ? imagecreatetruecolor($img_width, $img_height) + : imagecreate($img_width, $img_height); + + // ----------------------------------- + // Assign colors + // ---------------------------------- + + is_array($colors) OR $colors = $defaults['colors']; + + foreach (array_keys($defaults['colors']) as $key) + { + // Check for a possible missing value + is_array($colors[$key]) OR $colors[$key] = $defaults['colors'][$key]; + $colors[$key] = imagecolorallocate($im, $colors[$key][0], $colors[$key][1], $colors[$key][2]); + } + + // Create the rectangle + ImageFilledRectangle($im, 0, 0, $img_width, $img_height, $colors['background']); + + // ----------------------------------- + // Create the spiral pattern + // ----------------------------------- + $theta = 1; + $thetac = 7; + $radius = 16; + $circles = 20; + $points = 32; + + for ($i = 0, $cp = ($circles * $points) - 1; $i < $cp; $i++) + { + $theta += $thetac; + $rad = $radius * ($i / $points); + $x = ($rad * cos($theta)) + $x_axis; + $y = ($rad * sin($theta)) + $y_axis; + $theta += $thetac; + $rad1 = $radius * (($i + 1) / $points); + $x1 = ($rad1 * cos($theta)) + $x_axis; + $y1 = ($rad1 * sin($theta)) + $y_axis; + imageline($im, $x, $y, $x1, $y1, $colors['grid']); + $theta -= $thetac; + } + + // ----------------------------------- + // Write the text + // ----------------------------------- + + $use_font = ($font_path !== '' && file_exists($font_path) && function_exists('imagettftext')); + if ($use_font === FALSE) + { + ($font_size > 5) && $font_size = 5; + $x = mt_rand(0, $img_width / ($length / 3)); + $y = 0; + } + else + { + ($font_size > 30) && $font_size = 30; + $x = mt_rand(0, $img_width / ($length / 1.5)); + $y = $font_size + 2; + } + + for ($i = 0; $i < $length; $i++) + { + if ($use_font === FALSE) + { + $y = mt_rand(0 , $img_height / 2); + imagestring($im, $font_size, $x, $y, $word[$i], $colors['text']); + $x += ($font_size * 2); + } + else + { + $y = mt_rand($img_height / 2, $img_height - 3); + imagettftext($im, $font_size, $angle, $x, $y, $colors['text'], $font_path, $word[$i]); + $x += $font_size; + } + } + + // Create the border + imagerectangle($im, 0, 0, $img_width - 1, $img_height - 1, $colors['border']); + + // ----------------------------------- + // Generate the image + // ----------------------------------- + $img_url = rtrim($img_url, '/').'/'; + + if (function_exists('imagejpeg')) + { + $img_filename = $now.'.jpg'; + imagejpeg($im, $img_path.$img_filename); + } + elseif (function_exists('imagepng')) + { + $img_filename = $now.'.png'; + imagepng($im, $img_path.$img_filename); + } + else + { + return FALSE; + } + + $img = ' '; + ImageDestroy($im); + + return array('word' => $word, 'time' => $now, 'image' => $img, 'filename' => $img_filename); + } +} diff --git a/ci/system/helpers/cookie_helper.php b/ci/system/helpers/cookie_helper.php new file mode 100644 index 0000000..abe492f --- /dev/null +++ b/ci/system/helpers/cookie_helper.php @@ -0,0 +1,114 @@ +input->set_cookie($name, $value, $expire, $domain, $path, $prefix, $secure, $httponly); + } +} + +// -------------------------------------------------------------------- + +if ( ! function_exists('get_cookie')) +{ + /** + * Fetch an item from the COOKIE array + * + * @param string + * @param bool + * @return mixed + */ + function get_cookie($index, $xss_clean = NULL) + { + is_bool($xss_clean) OR $xss_clean = (config_item('global_xss_filtering') === TRUE); + $prefix = isset($_COOKIE[$index]) ? '' : config_item('cookie_prefix'); + return get_instance()->input->cookie($prefix.$index, $xss_clean); + } +} + +// -------------------------------------------------------------------- + +if ( ! function_exists('delete_cookie')) +{ + /** + * Delete a COOKIE + * + * @param mixed + * @param string the cookie domain. Usually: .yourdomain.com + * @param string the cookie path + * @param string the cookie prefix + * @return void + */ + function delete_cookie($name, $domain = '', $path = '/', $prefix = '') + { + set_cookie($name, '', '', $domain, $path, $prefix); + } +} diff --git a/ci/system/helpers/date_helper.php b/ci/system/helpers/date_helper.php new file mode 100644 index 0000000..5b2f3e0 --- /dev/null +++ b/ci/system/helpers/date_helper.php @@ -0,0 +1,743 @@ +format('j-n-Y G:i:s'), '%d-%d-%d %d:%d:%d', $day, $month, $year, $hour, $minute, $second); + + return mktime($hour, $minute, $second, $month, $day, $year); + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('mdate')) +{ + /** + * Convert MySQL Style Datecodes + * + * This function is identical to PHPs date() function, + * except that it allows date codes to be formatted using + * the MySQL style, where each code letter is preceded + * with a percent sign: %Y %m %d etc... + * + * The benefit of doing dates this way is that you don't + * have to worry about escaping your text letters that + * match the date codes. + * + * @param string + * @param int + * @return int + */ + function mdate($datestr = '', $time = '') + { + if ($datestr === '') + { + return ''; + } + elseif (empty($time)) + { + $time = now(); + } + + $datestr = str_replace( + '%\\', + '', + preg_replace('/([a-z]+?){1}/i', '\\\\\\1', $datestr) + ); + + return date($datestr, $time); + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('standard_date')) +{ + /** + * Standard Date + * + * Returns a date formatted according to the submitted standard. + * + * As of PHP 5.2, the DateTime extension provides constants that + * serve for the exact same purpose and are used with date(). + * + * @todo Remove in version 3.1+. + * @deprecated 3.0.0 Use PHP's native date() instead. + * @link https://www.php.net/manual/en/class.datetime.php#datetime.constants.types + * + * @example date(DATE_RFC822, now()); // default + * @example date(DATE_W3C, $time); // a different format and time + * + * @param string $fmt = 'DATE_RFC822' the chosen format + * @param int $time = NULL Unix timestamp + * @return string + */ + function standard_date($fmt = 'DATE_RFC822', $time = NULL) + { + if (empty($time)) + { + $time = now(); + } + + // Procedural style pre-defined constants from the DateTime extension + if (strpos($fmt, 'DATE_') !== 0 OR defined($fmt) === FALSE) + { + return FALSE; + } + + return date(constant($fmt), $time); + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('timespan')) +{ + /** + * Timespan + * + * Returns a span of seconds in this format: + * 10 days 14 hours 36 minutes 47 seconds + * + * @param int a number of seconds + * @param int Unix timestamp + * @param int a number of display units + * @return string + */ + function timespan($seconds = 1, $time = '', $units = 7) + { + $CI =& get_instance(); + $CI->lang->load('date'); + + is_numeric($seconds) OR $seconds = 1; + is_numeric($time) OR $time = time(); + is_numeric($units) OR $units = 7; + + $seconds = ($time <= $seconds) ? 1 : $time - $seconds; + + $str = array(); + $years = floor($seconds / 31557600); + + if ($years > 0) + { + $str[] = $years.' '.$CI->lang->line($years > 1 ? 'date_years' : 'date_year'); + } + + $seconds -= $years * 31557600; + $months = floor($seconds / 2629743); + + if (count($str) < $units && ($years > 0 OR $months > 0)) + { + if ($months > 0) + { + $str[] = $months.' '.$CI->lang->line($months > 1 ? 'date_months' : 'date_month'); + } + + $seconds -= $months * 2629743; + } + + $weeks = floor($seconds / 604800); + + if (count($str) < $units && ($years > 0 OR $months > 0 OR $weeks > 0)) + { + if ($weeks > 0) + { + $str[] = $weeks.' '.$CI->lang->line($weeks > 1 ? 'date_weeks' : 'date_week'); + } + + $seconds -= $weeks * 604800; + } + + $days = floor($seconds / 86400); + + if (count($str) < $units && ($months > 0 OR $weeks > 0 OR $days > 0)) + { + if ($days > 0) + { + $str[] = $days.' '.$CI->lang->line($days > 1 ? 'date_days' : 'date_day'); + } + + $seconds -= $days * 86400; + } + + $hours = floor($seconds / 3600); + + if (count($str) < $units && ($days > 0 OR $hours > 0)) + { + if ($hours > 0) + { + $str[] = $hours.' '.$CI->lang->line($hours > 1 ? 'date_hours' : 'date_hour'); + } + + $seconds -= $hours * 3600; + } + + $minutes = floor($seconds / 60); + + if (count($str) < $units && ($days > 0 OR $hours > 0 OR $minutes > 0)) + { + if ($minutes > 0) + { + $str[] = $minutes.' '.$CI->lang->line($minutes > 1 ? 'date_minutes' : 'date_minute'); + } + + $seconds -= $minutes * 60; + } + + if (count($str) === 0) + { + $str[] = $seconds.' '.$CI->lang->line($seconds > 1 ? 'date_seconds' : 'date_second'); + } + + return implode(', ', $str); + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('days_in_month')) +{ + /** + * Number of days in a month + * + * Takes a month/year as input and returns the number of days + * for the given month/year. Takes leap years into consideration. + * + * @param int a numeric month + * @param int a numeric year + * @return int + */ + function days_in_month($month = 0, $year = '') + { + if ($month < 1 OR $month > 12) + { + return 0; + } + elseif ( ! is_numeric($year) OR strlen($year) !== 4) + { + $year = date('Y'); + } + + if (defined('CAL_GREGORIAN')) + { + return cal_days_in_month(CAL_GREGORIAN, $month, $year); + } + + if ($year >= 1970) + { + return (int) date('t', mktime(12, 0, 0, $month, 1, $year)); + } + + if ($month == 2) + { + if ($year % 400 === 0 OR ($year % 4 === 0 && $year % 100 !== 0)) + { + return 29; + } + } + + $days_in_month = array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31); + return $days_in_month[$month - 1]; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('local_to_gmt')) +{ + /** + * Converts a local Unix timestamp to GMT + * + * @param int Unix timestamp + * @return int + */ + function local_to_gmt($time = '') + { + if ($time === '') + { + $time = time(); + } + + return mktime( + gmdate('G', $time), + gmdate('i', $time), + gmdate('s', $time), + gmdate('n', $time), + gmdate('j', $time), + gmdate('Y', $time) + ); + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('gmt_to_local')) +{ + /** + * Converts GMT time to a localized value + * + * Takes a Unix timestamp (in GMT) as input, and returns + * at the local value based on the timezone and DST setting + * submitted + * + * @param int Unix timestamp + * @param string timezone + * @param bool whether DST is active + * @return int + */ + function gmt_to_local($time = '', $timezone = 'UTC', $dst = FALSE) + { + if ($time === '') + { + return now(); + } + + $time += timezones($timezone) * 3600; + + return ($dst === TRUE) ? $time + 3600 : $time; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('mysql_to_unix')) +{ + /** + * Converts a MySQL Timestamp to Unix + * + * @param int MySQL timestamp YYYY-MM-DD HH:MM:SS + * @return int Unix timstamp + */ + function mysql_to_unix($time = '') + { + // We'll remove certain characters for backward compatibility + // since the formatting changed with MySQL 4.1 + // YYYY-MM-DD HH:MM:SS + + $time = str_replace(array('-', ':', ' '), '', $time); + + // YYYYMMDDHHMMSS + return mktime( + substr($time, 8, 2), + substr($time, 10, 2), + substr($time, 12, 2), + substr($time, 4, 2), + substr($time, 6, 2), + substr($time, 0, 4) + ); + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('unix_to_human')) +{ + /** + * Unix to "Human" + * + * Formats Unix timestamp to the following prototype: 2006-08-21 11:35 PM + * + * @param int Unix timestamp + * @param bool whether to show seconds + * @param string format: us or euro + * @return string + */ + function unix_to_human($time = '', $seconds = FALSE, $fmt = 'us') + { + $r = date('Y', $time).'-'.date('m', $time).'-'.date('d', $time).' '; + + if ($fmt === 'us') + { + $r .= date('h', $time).':'.date('i', $time); + } + else + { + $r .= date('H', $time).':'.date('i', $time); + } + + if ($seconds) + { + $r .= ':'.date('s', $time); + } + + if ($fmt === 'us') + { + return $r.' '.date('A', $time); + } + + return $r; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('human_to_unix')) +{ + /** + * Convert "human" date to GMT + * + * Reverses the above process + * + * @param string format: us or euro + * @return int + */ + function human_to_unix($datestr = '') + { + if ($datestr === '') + { + return FALSE; + } + + $datestr = preg_replace('/\040+/', ' ', trim($datestr)); + + if ( ! preg_match('/^(\d{2}|\d{4})\-[0-9]{1,2}\-[0-9]{1,2}\s[0-9]{1,2}:[0-9]{1,2}(?::[0-9]{1,2})?(?:\s[AP]M)?$/i', $datestr)) + { + return FALSE; + } + + sscanf($datestr, '%d-%d-%d %s %s', $year, $month, $day, $time, $ampm); + sscanf($time, '%d:%d:%d', $hour, $min, $sec); + isset($sec) OR $sec = 0; + + if (isset($ampm)) + { + $ampm = strtolower($ampm); + + if ($ampm[0] === 'p' && $hour < 12) + { + $hour += 12; + } + elseif ($ampm[0] === 'a' && $hour === 12) + { + $hour = 0; + } + } + + return mktime($hour, $min, $sec, $month, $day, $year); + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('nice_date')) +{ + /** + * Turns many "reasonably-date-like" strings into something + * that is actually useful. This only works for dates after unix epoch. + * + * @deprecated 3.1.3 Use DateTime::createFromFormat($input_format, $input)->format($output_format); + * @param string The terribly formatted date-like string + * @param string Date format to return (same as php date function) + * @return string + */ + function nice_date($bad_date = '', $format = FALSE) + { + if (empty($bad_date)) + { + return 'Unknown'; + } + elseif (empty($format)) + { + $format = 'U'; + } + + // Date like: YYYYMM + if (preg_match('/^\d{6}$/i', $bad_date)) + { + if (in_array(substr($bad_date, 0, 2), array('19', '20'))) + { + $year = substr($bad_date, 0, 4); + $month = substr($bad_date, 4, 2); + } + else + { + $month = substr($bad_date, 0, 2); + $year = substr($bad_date, 2, 4); + } + + return date($format, strtotime($year.'-'.$month.'-01')); + } + + // Date Like: YYYYMMDD + if (preg_match('/^\d{8}$/i', $bad_date, $matches)) + { + return DateTime::createFromFormat('Ymd', $bad_date)->format($format); + } + + // Date Like: MM-DD-YYYY __or__ M-D-YYYY (or anything in between) + if (preg_match('/^(\d{1,2})-(\d{1,2})-(\d{4})$/i', $bad_date, $matches)) + { + return date($format, strtotime($matches[3].'-'.$matches[1].'-'.$matches[2])); + } + + // Any other kind of string, when converted into UNIX time, + // produces "0 seconds after epoc..." is probably bad... + // return "Invalid Date". + if (date('U', strtotime($bad_date)) === '0') + { + return 'Invalid Date'; + } + + // It's probably a valid-ish date format already + return date($format, strtotime($bad_date)); + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('timezone_menu')) +{ + /** + * Timezone Menu + * + * Generates a drop-down menu of timezones. + * + * @param string timezone + * @param string classname + * @param string menu name + * @param mixed attributes + * @return string + */ + function timezone_menu($default = 'UTC', $class = '', $name = 'timezones', $attributes = '') + { + $CI =& get_instance(); + $CI->lang->load('date'); + + $default = ($default === 'GMT') ? 'UTC' : $default; + + $menu = ''; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('timezones')) +{ + /** + * Timezones + * + * Returns an array of timezones. This is a helper function + * for various other ones in this library + * + * @param string timezone + * @return string + */ + function timezones($tz = '') + { + // Note: Don't change the order of these even though + // some items appear to be in the wrong order + + $zones = array( + 'UM12' => -12, + 'UM11' => -11, + 'UM10' => -10, + 'UM95' => -9.5, + 'UM9' => -9, + 'UM8' => -8, + 'UM7' => -7, + 'UM6' => -6, + 'UM5' => -5, + 'UM45' => -4.5, + 'UM4' => -4, + 'UM35' => -3.5, + 'UM3' => -3, + 'UM2' => -2, + 'UM1' => -1, + 'UTC' => 0, + 'UP1' => +1, + 'UP2' => +2, + 'UP3' => +3, + 'UP35' => +3.5, + 'UP4' => +4, + 'UP45' => +4.5, + 'UP5' => +5, + 'UP55' => +5.5, + 'UP575' => +5.75, + 'UP6' => +6, + 'UP65' => +6.5, + 'UP7' => +7, + 'UP8' => +8, + 'UP875' => +8.75, + 'UP9' => +9, + 'UP95' => +9.5, + 'UP10' => +10, + 'UP105' => +10.5, + 'UP11' => +11, + 'UP115' => +11.5, + 'UP12' => +12, + 'UP1275' => +12.75, + 'UP13' => +13, + 'UP14' => +14 + ); + + if ($tz === '') + { + return $zones; + } + + return isset($zones[$tz]) ? $zones[$tz] : 0; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('date_range')) +{ + /** + * Date range + * + * Returns a list of dates within a specified period. + * + * @param int unix_start UNIX timestamp of period start date + * @param int unix_end|days UNIX timestamp of period end date + * or interval in days. + * @param mixed is_unix Specifies whether the second parameter + * is a UNIX timestamp or a day interval + * - TRUE or 'unix' for a timestamp + * - FALSE or 'days' for an interval + * @param string date_format Output date format, same as in date() + * @return array + */ + function date_range($unix_start = '', $mixed = '', $is_unix = TRUE, $format = 'Y-m-d') + { + if ($unix_start == '' OR $mixed == '' OR $format == '') + { + return FALSE; + } + + $is_unix = ! ( ! $is_unix OR $is_unix === 'days'); + + // Validate input and try strtotime() on invalid timestamps/intervals, just in case + if ( ( ! ctype_digit((string) $unix_start) && ($unix_start = @strtotime($unix_start)) === FALSE) + OR ( ! ctype_digit((string) $mixed) && ($is_unix === FALSE OR ($mixed = @strtotime($mixed)) === FALSE)) + OR ($is_unix === TRUE && $mixed < $unix_start)) + { + return FALSE; + } + + if ($is_unix && ($unix_start == $mixed OR date($format, $unix_start) === date($format, $mixed))) + { + return array(date($format, $unix_start)); + } + + $range = array(); + + $from = new DateTime(); + $from->setTimestamp($unix_start); + + if ($is_unix) + { + $arg = new DateTime(); + $arg->setTimestamp($mixed); + } + else + { + $arg = (int) $mixed; + } + + $period = new DatePeriod($from, new DateInterval('P1D'), $arg); + foreach ($period as $date) + { + $range[] = $date->format($format); + } + + /* If a period end date was passed to the DatePeriod constructor, it might not + * be in our results. Not sure if this is a bug or it's just possible because + * the end date might actually be less than 24 hours away from the previously + * generated DateTime object, but either way - we have to append it manually. + */ + if ( ! is_int($arg) && $range[count($range) - 1] !== $arg->format($format)) + { + $range[] = $arg->format($format); + } + + return $range; + } +} diff --git a/ci/system/helpers/directory_helper.php b/ci/system/helpers/directory_helper.php new file mode 100644 index 0000000..d747a96 --- /dev/null +++ b/ci/system/helpers/directory_helper.php @@ -0,0 +1,102 @@ + 0) && is_dir($source_dir.$file)) + { + $filedata[$file] = directory_map($source_dir.$file, $new_depth, $hidden); + } + else + { + $filedata[] = $file; + } + } + + closedir($fp); + return $filedata; + } + + return FALSE; + } +} diff --git a/ci/system/helpers/download_helper.php b/ci/system/helpers/download_helper.php new file mode 100644 index 0000000..9b361c4 --- /dev/null +++ b/ci/system/helpers/download_helper.php @@ -0,0 +1,159 @@ + 0) + ? @rmdir($path) + : TRUE; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('get_filenames')) +{ + /** + * Get Filenames + * + * Reads the specified directory and builds an array containing the filenames. + * Any sub-folders contained within the specified path are read as well. + * + * @param string path to source + * @param bool whether to include the path as part of the filename + * @param bool internal variable to determine recursion status - do not use in calls + * @return array + */ + function get_filenames($source_dir, $include_path = FALSE, $_recursion = FALSE) + { + static $_filedata = array(); + + if ($fp = @opendir($source_dir)) + { + // reset the array and make sure $source_dir has a trailing slash on the initial call + if ($_recursion === FALSE) + { + $_filedata = array(); + $source_dir = rtrim(realpath($source_dir), DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR; + } + + while (FALSE !== ($file = readdir($fp))) + { + if (is_dir($source_dir.$file) && $file[0] !== '.') + { + get_filenames($source_dir.$file.DIRECTORY_SEPARATOR, $include_path, TRUE); + } + elseif ($file[0] !== '.') + { + $_filedata[] = ($include_path === TRUE) ? $source_dir.$file : $file; + } + } + + closedir($fp); + return $_filedata; + } + + return FALSE; + } +} + +// -------------------------------------------------------------------- + +if ( ! function_exists('get_dir_file_info')) +{ + /** + * Get Directory File Information + * + * Reads the specified directory and builds an array containing the filenames, + * filesize, dates, and permissions + * + * Any sub-folders contained within the specified path are read as well. + * + * @param string path to source + * @param bool Look only at the top level directory specified? + * @param bool internal variable to determine recursion status - do not use in calls + * @return array + */ + function get_dir_file_info($source_dir, $top_level_only = TRUE, $_recursion = FALSE) + { + static $_filedata = array(); + $relative_path = $source_dir; + + if ($fp = @opendir($source_dir)) + { + // reset the array and make sure $source_dir has a trailing slash on the initial call + if ($_recursion === FALSE) + { + $_filedata = array(); + $source_dir = rtrim(realpath($source_dir), DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR; + } + + // Used to be foreach (scandir($source_dir, 1) as $file), but scandir() is simply not as fast + while (FALSE !== ($file = readdir($fp))) + { + if (is_dir($source_dir.$file) && $file[0] !== '.' && $top_level_only === FALSE) + { + get_dir_file_info($source_dir.$file.DIRECTORY_SEPARATOR, $top_level_only, TRUE); + } + elseif ($file[0] !== '.') + { + $_filedata[$file] = get_file_info($source_dir.$file); + $_filedata[$file]['relative_path'] = $relative_path; + } + } + + closedir($fp); + return $_filedata; + } + + return FALSE; + } +} + +// -------------------------------------------------------------------- + +if ( ! function_exists('get_file_info')) +{ + /** + * Get File Info + * + * Given a file and path, returns the name, path, size, date modified + * Second parameter allows you to explicitly declare what information you want returned + * Options are: name, server_path, size, date, readable, writable, executable, fileperms + * Returns FALSE if the file cannot be found. + * + * @param string path to file + * @param mixed array or comma separated string of information returned + * @return array + */ + function get_file_info($file, $returned_values = array('name', 'server_path', 'size', 'date')) + { + if ( ! file_exists($file)) + { + return FALSE; + } + + if (is_string($returned_values)) + { + $returned_values = explode(',', $returned_values); + } + + foreach ($returned_values as $key) + { + switch ($key) + { + case 'name': + $fileinfo['name'] = basename($file); + break; + case 'server_path': + $fileinfo['server_path'] = $file; + break; + case 'size': + $fileinfo['size'] = filesize($file); + break; + case 'date': + $fileinfo['date'] = filemtime($file); + break; + case 'readable': + $fileinfo['readable'] = is_readable($file); + break; + case 'writable': + $fileinfo['writable'] = is_really_writable($file); + break; + case 'executable': + $fileinfo['executable'] = is_executable($file); + break; + case 'fileperms': + $fileinfo['fileperms'] = fileperms($file); + break; + } + } + + return $fileinfo; + } +} + +// -------------------------------------------------------------------- + +if ( ! function_exists('get_mime_by_extension')) +{ + /** + * Get Mime by Extension + * + * Translates a file extension into a mime type based on config/mimes.php. + * Returns FALSE if it can't determine the type, or open the mime config file + * + * Note: this is NOT an accurate way of determining file mime types, and is here strictly as a convenience + * It should NOT be trusted, and should certainly NOT be used for security + * + * @param string $filename File name + * @return string + */ + function get_mime_by_extension($filename) + { + static $mimes; + + if ( ! is_array($mimes)) + { + $mimes = get_mimes(); + + if (empty($mimes)) + { + return FALSE; + } + } + + $extension = strtolower(substr(strrchr($filename, '.'), 1)); + + if (isset($mimes[$extension])) + { + return is_array($mimes[$extension]) + ? current($mimes[$extension]) // Multiple mime types, just give the first one + : $mimes[$extension]; + } + + return FALSE; + } +} + +// -------------------------------------------------------------------- + +if ( ! function_exists('symbolic_permissions')) +{ + /** + * Symbolic Permissions + * + * Takes a numeric value representing a file's permissions and returns + * standard symbolic notation representing that value + * + * @param int $perms Permissions + * @return string + */ + function symbolic_permissions($perms) + { + if (($perms & 0xC000) === 0xC000) + { + $symbolic = 's'; // Socket + } + elseif (($perms & 0xA000) === 0xA000) + { + $symbolic = 'l'; // Symbolic Link + } + elseif (($perms & 0x8000) === 0x8000) + { + $symbolic = '-'; // Regular + } + elseif (($perms & 0x6000) === 0x6000) + { + $symbolic = 'b'; // Block special + } + elseif (($perms & 0x4000) === 0x4000) + { + $symbolic = 'd'; // Directory + } + elseif (($perms & 0x2000) === 0x2000) + { + $symbolic = 'c'; // Character special + } + elseif (($perms & 0x1000) === 0x1000) + { + $symbolic = 'p'; // FIFO pipe + } + else + { + $symbolic = 'u'; // Unknown + } + + // Owner + $symbolic .= (($perms & 0x0100) ? 'r' : '-') + .(($perms & 0x0080) ? 'w' : '-') + .(($perms & 0x0040) ? (($perms & 0x0800) ? 's' : 'x' ) : (($perms & 0x0800) ? 'S' : '-')); + + // Group + $symbolic .= (($perms & 0x0020) ? 'r' : '-') + .(($perms & 0x0010) ? 'w' : '-') + .(($perms & 0x0008) ? (($perms & 0x0400) ? 's' : 'x' ) : (($perms & 0x0400) ? 'S' : '-')); + + // World + $symbolic .= (($perms & 0x0004) ? 'r' : '-') + .(($perms & 0x0002) ? 'w' : '-') + .(($perms & 0x0001) ? (($perms & 0x0200) ? 't' : 'x' ) : (($perms & 0x0200) ? 'T' : '-')); + + return $symbolic; + } +} + +// -------------------------------------------------------------------- + +if ( ! function_exists('octal_permissions')) +{ + /** + * Octal Permissions + * + * Takes a numeric value representing a file's permissions and returns + * a three character string representing the file's octal permissions + * + * @param int $perms Permissions + * @return string + */ + function octal_permissions($perms) + { + return substr(sprintf('%o', $perms), -3); + } +} diff --git a/ci/system/helpers/form_helper.php b/ci/system/helpers/form_helper.php new file mode 100644 index 0000000..ba74ff5 --- /dev/null +++ b/ci/system/helpers/form_helper.php @@ -0,0 +1,1056 @@ +config->site_url($CI->uri->uri_string()); + } + // If an action is not a full URL then turn it into one + elseif (strpos($action, '://') === FALSE) + { + $action = $CI->config->site_url($action); + } + + $attributes = _attributes_to_string($attributes); + + if (stripos($attributes, 'method=') === FALSE) + { + $attributes .= ' method="post"'; + } + + if (stripos($attributes, 'accept-charset=') === FALSE) + { + $attributes .= ' accept-charset="'.strtolower(config_item('charset')).'"'; + } + + $form = '
\n"; + + if (is_array($hidden)) + { + foreach ($hidden as $name => $value) + { + $form .= ''."\n"; + } + } + + // Add CSRF field if enabled, but leave it out for GET requests and requests to external websites + if ($CI->config->item('csrf_protection') === TRUE && strpos($action, $CI->config->base_url()) !== FALSE && ! stripos($form, 'method="get"')) + { + // Prepend/append random-length "white noise" around the CSRF + // token input, as a form of protection against BREACH attacks + if (FALSE !== ($noise = $CI->security->get_random_bytes(1))) + { + list(, $noise) = unpack('c', $noise); + } + else + { + $noise = mt_rand(-128, 127); + } + + // Prepend if $noise has a negative value, append if positive, do nothing for zero + $prepend = $append = ''; + if ($noise < 0) + { + $prepend = str_repeat(" ", abs($noise)); + } + elseif ($noise > 0) + { + $append = str_repeat(" ", $noise); + } + + $form .= sprintf( + '%s%s%s', + $prepend, + $CI->security->get_csrf_token_name(), + $CI->security->get_csrf_hash(), + $append, + "\n" + ); + } + + return $form; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('form_open_multipart')) +{ + /** + * Form Declaration - Multipart type + * + * Creates the opening portion of the form, but with "multipart/form-data". + * + * @param string the URI segments of the form destination + * @param array a key/value pair of attributes + * @param array a key/value pair hidden data + * @return string + */ + function form_open_multipart($action = '', $attributes = array(), $hidden = array()) + { + if (is_string($attributes)) + { + $attributes .= ' enctype="multipart/form-data"'; + } + else + { + $attributes['enctype'] = 'multipart/form-data'; + } + + return form_open($action, $attributes, $hidden); + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('form_hidden')) +{ + /** + * Hidden Input Field + * + * Generates hidden fields. You can pass a simple key/value string or + * an associative array with multiple values. + * + * @param mixed $name Field name + * @param string $value Field value + * @param bool $recursing + * @return string + */ + function form_hidden($name, $value = '', $recursing = FALSE) + { + static $form; + + if ($recursing === FALSE) + { + $form = "\n"; + } + + if (is_array($name)) + { + foreach ($name as $key => $val) + { + form_hidden($key, $val, TRUE); + } + + return $form; + } + + if ( ! is_array($value)) + { + $form .= '\n"; + } + else + { + foreach ($value as $k => $v) + { + $k = is_int($k) ? '' : $k; + form_hidden($name.'['.$k.']', $v, TRUE); + } + } + + return $form; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('form_input')) +{ + /** + * Text Input Field + * + * @param mixed + * @param string + * @param mixed + * @return string + */ + function form_input($data = '', $value = '', $extra = '') + { + $defaults = array( + 'type' => 'text', + 'name' => is_array($data) ? '' : $data, + 'value' => $value + ); + + return '\n"; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('form_password')) +{ + /** + * Password Field + * + * Identical to the input function but adds the "password" type + * + * @param mixed + * @param string + * @param mixed + * @return string + */ + function form_password($data = '', $value = '', $extra = '') + { + is_array($data) OR $data = array('name' => $data); + $data['type'] = 'password'; + return form_input($data, $value, $extra); + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('form_upload')) +{ + /** + * Upload Field + * + * Identical to the input function but adds the "file" type + * + * @param mixed + * @param string + * @param mixed + * @return string + */ + function form_upload($data = '', $value = '', $extra = '') + { + $defaults = array('type' => 'file', 'name' => ''); + is_array($data) OR $data = array('name' => $data); + $data['type'] = 'file'; + + return '\n"; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('form_textarea')) +{ + /** + * Textarea field + * + * @param mixed $data + * @param string $value + * @param mixed $extra + * @return string + */ + function form_textarea($data = '', $value = '', $extra = '') + { + $defaults = array( + 'name' => is_array($data) ? '' : $data, + 'cols' => '40', + 'rows' => '10' + ); + + if ( ! is_array($data) OR ! isset($data['value'])) + { + $val = $value; + } + else + { + $val = $data['value']; + unset($data['value']); // textareas don't use the value attribute + } + + return '\n"; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('form_multiselect')) +{ + /** + * Multi-select menu + * + * @param string + * @param array + * @param mixed + * @param mixed + * @return string + */ + function form_multiselect($name = '', $options = array(), $selected = array(), $extra = '') + { + $extra = _attributes_to_string($extra); + if (stripos($extra, 'multiple') === FALSE) + { + $extra .= ' multiple="multiple"'; + } + + return form_dropdown($name, $options, $selected, $extra); + } +} + +// -------------------------------------------------------------------- + +if ( ! function_exists('form_dropdown')) +{ + /** + * Drop-down Menu + * + * @param mixed $data + * @param mixed $options + * @param mixed $selected + * @param mixed $extra + * @return string + */ + function form_dropdown($data = '', $options = array(), $selected = array(), $extra = '') + { + $defaults = array(); + + if (is_array($data)) + { + if (isset($data['selected'])) + { + $selected = $data['selected']; + unset($data['selected']); // select tags don't have a selected attribute + } + + if (isset($data['options'])) + { + $options = $data['options']; + unset($data['options']); // select tags don't use an options attribute + } + } + else + { + $defaults = array('name' => $data); + } + + is_array($selected) OR $selected = array($selected); + is_array($options) OR $options = array($options); + + // If no selected state was submitted we will attempt to set it automatically + if (empty($selected)) + { + if (is_array($data)) + { + if (isset($data['name'], $_POST[$data['name']])) + { + $selected = array($_POST[$data['name']]); + } + } + elseif (isset($_POST[$data])) + { + $selected = array($_POST[$data]); + } + } + + $extra = _attributes_to_string($extra); + + $multiple = (count($selected) > 1 && stripos($extra, 'multiple') === FALSE) ? ' multiple="multiple"' : ''; + + $form = '\n"; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('form_checkbox')) +{ + /** + * Checkbox Field + * + * @param mixed + * @param string + * @param bool + * @param mixed + * @return string + */ + function form_checkbox($data = '', $value = '', $checked = FALSE, $extra = '') + { + $defaults = array('type' => 'checkbox', 'name' => ( ! is_array($data) ? $data : ''), 'value' => $value); + + if (is_array($data) && array_key_exists('checked', $data)) + { + $checked = $data['checked']; + + if ($checked == FALSE) + { + unset($data['checked']); + } + else + { + $data['checked'] = 'checked'; + } + } + + if ($checked == TRUE) + { + $defaults['checked'] = 'checked'; + } + else + { + unset($defaults['checked']); + } + + return '\n"; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('form_radio')) +{ + /** + * Radio Button + * + * @param mixed + * @param string + * @param bool + * @param mixed + * @return string + */ + function form_radio($data = '', $value = '', $checked = FALSE, $extra = '') + { + is_array($data) OR $data = array('name' => $data); + $data['type'] = 'radio'; + + return form_checkbox($data, $value, $checked, $extra); + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('form_submit')) +{ + /** + * Submit Button + * + * @param mixed + * @param string + * @param mixed + * @return string + */ + function form_submit($data = '', $value = '', $extra = '') + { + $defaults = array( + 'type' => 'submit', + 'name' => is_array($data) ? '' : $data, + 'value' => $value + ); + + return '\n"; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('form_reset')) +{ + /** + * Reset Button + * + * @param mixed + * @param string + * @param mixed + * @return string + */ + function form_reset($data = '', $value = '', $extra = '') + { + $defaults = array( + 'type' => 'reset', + 'name' => is_array($data) ? '' : $data, + 'value' => $value + ); + + return '\n"; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('form_button')) +{ + /** + * Form Button + * + * @param mixed + * @param string + * @param mixed + * @return string + */ + function form_button($data = '', $content = '', $extra = '') + { + $defaults = array( + 'name' => is_array($data) ? '' : $data, + 'type' => 'button' + ); + + if (is_array($data) && isset($data['content'])) + { + $content = $data['content']; + unset($data['content']); // content is not an attribute + } + + return '\n"; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('form_label')) +{ + /** + * Form Label Tag + * + * @param string The text to appear onscreen + * @param string The id the label applies to + * @param mixed Additional attributes + * @return string + */ + function form_label($label_text = '', $id = '', $attributes = array()) + { + + $label = ''.$label_text.''; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('form_fieldset')) +{ + /** + * Fieldset Tag + * + * Used to produce
text. To close fieldset + * use form_fieldset_close() + * + * @param string The legend text + * @param array Additional attributes + * @return string + */ + function form_fieldset($legend_text = '', $attributes = array()) + { + $fieldset = '\n"; + if ($legend_text !== '') + { + return $fieldset.''.$legend_text."\n"; + } + + return $fieldset; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('form_fieldset_close')) +{ + /** + * Fieldset Close Tag + * + * @param string + * @return string + */ + function form_fieldset_close($extra = '') + { + return '
'.$extra; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('form_close')) +{ + /** + * Form Close Tag + * + * @param string + * @return string + */ + function form_close($extra = '') + { + return ''.$extra; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('form_prep')) +{ + /** + * Form Prep + * + * Formats text so that it can be safely placed in a form field in the event it has HTML tags. + * + * @deprecated 3.0.0 An alias for html_escape() + * @param string|string[] $str Value to escape + * @return string|string[] Escaped values + */ + function form_prep($str) + { + return html_escape($str, TRUE); + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('set_value')) +{ + /** + * Form Value + * + * Grabs a value from the POST array for the specified field so you can + * re-populate an input field or textarea. If Form Validation + * is active it retrieves the info from the validation class + * + * @param string $field Field name + * @param string $default Default value + * @param bool $html_escape Whether to escape HTML special characters or not + * @return string + */ + function set_value($field, $default = '', $html_escape = TRUE) + { + $CI =& get_instance(); + + $value = (isset($CI->form_validation) && is_object($CI->form_validation) && $CI->form_validation->has_rule($field)) + ? $CI->form_validation->set_value($field, $default) + : $CI->input->post($field, FALSE); + + isset($value) OR $value = $default; + return ($html_escape) ? html_escape($value) : $value; + } +} + +// ------------------------------------------------------------------------ + +if ( ! function_exists('set_select')) +{ + /** + * Set Select + * + * Let's you set the selected value of a