1033 lines
25 KiB
PHP
1033 lines
25 KiB
PHP
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<?php
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/**
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* CodeIgniter
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*
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* An open source application development framework for PHP
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*
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* This content is released under the MIT License (MIT)
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*
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* Copyright (c) 2019 - 2022, CodeIgniter Foundation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* @package CodeIgniter
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* @author EllisLab Dev Team
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* @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
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* @copyright Copyright (c) 2014 - 2019, British Columbia Institute of Technology (https://bcit.ca/)
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* @copyright Copyright (c) 2019 - 2022, CodeIgniter Foundation (https://codeigniter.com/)
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* @license https://opensource.org/licenses/MIT MIT License
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* @link https://codeigniter.com
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* @since Version 2.0.0
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* @filesource
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*/
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defined('BASEPATH') OR exit('No direct script access allowed');
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/**
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* CodeIgniter Session Class
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*
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* @package CodeIgniter
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* @subpackage Libraries
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* @category Sessions
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* @author Andrey Andreev
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* @link https://codeigniter.com/userguide3/libraries/sessions.html
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*/
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class CI_Session {
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/**
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* Userdata array
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*
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* Just a reference to $_SESSION, for BC purposes.
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*/
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public $userdata;
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protected $_driver = 'files';
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protected $_config;
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protected $_sid_regexp;
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// ------------------------------------------------------------------------
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/**
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* Class constructor
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*
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* @param array $params Configuration parameters
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* @return void
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*/
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public function __construct(array $params = array())
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{
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// No sessions under CLI
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if (is_cli())
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{
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log_message('debug', 'Session: Initialization under CLI aborted.');
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return;
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}
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elseif ((bool) ini_get('session.auto_start'))
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{
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log_message('error', 'Session: session.auto_start is enabled in php.ini. Aborting.');
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return;
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}
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elseif ( ! empty($params['driver']))
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{
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$this->_driver = $params['driver'];
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unset($params['driver']);
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}
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elseif ($driver = config_item('sess_driver'))
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{
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$this->_driver = $driver;
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}
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// Note: BC workaround
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elseif (config_item('sess_use_database'))
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{
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log_message('debug', 'Session: "sess_driver" is empty; using BC fallback to "sess_use_database".');
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$this->_driver = 'database';
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}
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$class = $this->_ci_load_classes($this->_driver);
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// Configuration ...
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$this->_configure($params);
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$this->_config['_sid_regexp'] = $this->_sid_regexp;
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$class = new $class($this->_config);
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$wrapper = new CI_SessionWrapper($class);
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if (is_php('5.4'))
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{
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session_set_save_handler($wrapper, TRUE);
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}
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else
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{
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session_set_save_handler(
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array($wrapper, 'open'),
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array($wrapper, 'close'),
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array($wrapper, 'read'),
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array($wrapper, 'write'),
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array($wrapper, 'destroy'),
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array($wrapper, 'gc')
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);
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register_shutdown_function('session_write_close');
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}
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// Sanitize the cookie, because apparently PHP doesn't do that for userspace handlers
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if (isset($_COOKIE[$this->_config['cookie_name']])
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&& (
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! is_string($_COOKIE[$this->_config['cookie_name']])
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OR ! preg_match('#\A'.$this->_sid_regexp.'\z#', $_COOKIE[$this->_config['cookie_name']])
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)
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)
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{
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unset($_COOKIE[$this->_config['cookie_name']]);
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}
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session_start();
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// Is session ID auto-regeneration configured? (ignoring ajax requests)
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if ((empty($_SERVER['HTTP_X_REQUESTED_WITH']) OR strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) !== 'xmlhttprequest')
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&& ($regenerate_time = config_item('sess_time_to_update')) > 0
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)
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{
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if ( ! isset($_SESSION['__ci_last_regenerate']))
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{
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$_SESSION['__ci_last_regenerate'] = time();
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}
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elseif ($_SESSION['__ci_last_regenerate'] < (time() - $regenerate_time))
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{
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$this->sess_regenerate((bool) config_item('sess_regenerate_destroy'));
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}
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}
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// Another work-around ... PHP doesn't seem to send the session cookie
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// unless it is being currently created or regenerated
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elseif (isset($_COOKIE[$this->_config['cookie_name']]) && $_COOKIE[$this->_config['cookie_name']] === session_id())
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{
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$expires = empty($this->_config['cookie_lifetime']) ? 0 : time() + $this->_config['cookie_lifetime'];
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if (is_php('7.3'))
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{
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setcookie(
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$this->_config['cookie_name'],
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session_id(),
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array(
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'expires' => $expires,
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'path' => $this->_config['cookie_path'],
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'domain' => $this->_config['cookie_domain'],
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'secure' => $this->_config['cookie_secure'],
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'httponly' => TRUE,
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'samesite' => $this->_config['cookie_samesite']
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)
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);
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}
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else
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{
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$header = 'Set-Cookie: '.$this->_config['cookie_name'].'='.session_id();
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$header .= empty($expires) ? '' : '; Expires='.gmdate('D, d-M-Y H:i:s T', $expires).'; Max-Age='.$this->_config['cookie_lifetime'];
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$header .= '; Path='.$this->_config['cookie_path'];
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$header .= ($this->_config['cookie_domain'] !== '' ? '; Domain='.$this->_config['cookie_domain'] : '');
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$header .= ($this->_config['cookie_secure'] ? '; Secure' : '').'; HttpOnly; SameSite='.$this->_config['cookie_samesite'];
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header($header);
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}
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if ( ! $this->_config['cookie_secure'] && $this->_config['cookie_samesite'] === 'None')
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{
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log_message('error', "Session: '".$this->_config['cookie_name']."' cookie sent with SameSite=None, but without Secure attribute.'");
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}
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}
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$this->_ci_init_vars();
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log_message('info', "Session: Class initialized using '".$this->_driver."' driver.");
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}
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// ------------------------------------------------------------------------
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/**
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* CI Load Classes
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*
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* An internal method to load all possible dependency and extension
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* classes. It kind of emulates the CI_Driver library, but is
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* self-sufficient.
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*
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* @param string $driver Driver name
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* @return string Driver class name
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*/
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protected function _ci_load_classes($driver)
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{
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// PHP 5.4 compatibility
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interface_exists('SessionHandlerInterface', FALSE) OR require_once(BASEPATH.'libraries/Session/SessionHandlerInterface.php');
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// PHP 7 compatibility
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interface_exists('SessionUpdateTimestampHandlerInterface', FALSE) OR require_once(BASEPATH.'libraries/Session/SessionUpdateTimestampHandlerInterface.php');
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require_once(BASEPATH.'libraries/Session/CI_Session_driver_interface.php');
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$wrapper = is_php('8.0') ? 'PHP8SessionWrapper' : 'OldSessionWrapper';
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require_once(BASEPATH.'libraries/Session/'.$wrapper.'.php');
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$prefix = config_item('subclass_prefix');
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if ( ! class_exists('CI_Session_driver', FALSE))
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{
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require_once(
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file_exists(APPPATH.'libraries/Session/Session_driver.php')
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? APPPATH.'libraries/Session/Session_driver.php'
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: BASEPATH.'libraries/Session/Session_driver.php'
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);
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if (file_exists($file_path = APPPATH.'libraries/Session/'.$prefix.'Session_driver.php'))
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{
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require_once($file_path);
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}
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}
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$class = 'Session_'.$driver.'_driver';
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// Allow custom drivers without the CI_ or MY_ prefix
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if ( ! class_exists($class, FALSE) && file_exists($file_path = APPPATH.'libraries/Session/drivers/'.$class.'.php'))
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{
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require_once($file_path);
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if (class_exists($class, FALSE))
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{
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return $class;
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}
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}
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if ( ! class_exists('CI_'.$class, FALSE))
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{
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if (file_exists($file_path = APPPATH.'libraries/Session/drivers/'.$class.'.php') OR file_exists($file_path = BASEPATH.'libraries/Session/drivers/'.$class.'.php'))
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{
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require_once($file_path);
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}
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if ( ! class_exists('CI_'.$class, FALSE) && ! class_exists($class, FALSE))
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{
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throw new UnexpectedValueException("Session: Configured driver '".$driver."' was not found. Aborting.");
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}
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}
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if ( ! class_exists($prefix.$class, FALSE) && file_exists($file_path = APPPATH.'libraries/Session/drivers/'.$prefix.$class.'.php'))
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{
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require_once($file_path);
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if (class_exists($prefix.$class, FALSE))
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{
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return $prefix.$class;
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}
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log_message('debug', 'Session: '.$prefix.$class.".php found but it doesn't declare class ".$prefix.$class.'.');
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}
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return 'CI_'.$class;
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}
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// ------------------------------------------------------------------------
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/**
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* Configuration
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*
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* Handle input parameters and configuration defaults
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*
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* @param array &$params Input parameters
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* @return void
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*/
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protected function _configure(&$params)
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{
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$expiration = config_item('sess_expiration');
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if (isset($params['cookie_lifetime']))
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{
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$params['cookie_lifetime'] = (int) $params['cookie_lifetime'];
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}
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else
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{
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$params['cookie_lifetime'] = ( ! isset($expiration) && config_item('sess_expire_on_close'))
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? 0 : (int) $expiration;
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}
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isset($params['cookie_name']) OR $params['cookie_name'] = config_item('sess_cookie_name');
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if (empty($params['cookie_name']))
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{
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$params['cookie_name'] = ini_get('session.name');
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}
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else
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{
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ini_set('session.name', $params['cookie_name']);
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}
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isset($params['cookie_path']) OR $params['cookie_path'] = config_item('cookie_path');
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isset($params['cookie_domain']) OR $params['cookie_domain'] = config_item('cookie_domain');
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isset($params['cookie_secure']) OR $params['cookie_secure'] = (bool) config_item('cookie_secure');
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isset($params['cookie_samesite']) OR $params['cookie_samesite'] = config_item('sess_samesite');
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if ( ! isset($params['cookie_samesite']) && is_php('7.3'))
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{
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$params['cookie_samesite'] = ini_get('session.cookie_samesite');
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}
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if (isset($params['cookie_samesite']))
|
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{
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$params['cookie_samesite'] = ucfirst(strtolower($params['cookie_samesite']));
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in_array($params['cookie_samesite'], array('Lax', 'Strict', 'None'), TRUE) OR $params['cookie_samesite'] = 'Lax';
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}
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else
|
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{
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$params['cookie_samesite'] = 'Lax';
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}
|
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|
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|
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if (is_php('7.3'))
|
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{
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session_set_cookie_params(array(
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'lifetime' => $params['cookie_lifetime'],
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'path' => $params['cookie_path'],
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'domain' => $params['cookie_domain'],
|
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'secure' => $params['cookie_secure'],
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'httponly' => TRUE,
|
||
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'samesite' => $params['cookie_samesite']
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||
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));
|
||
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}
|
||
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else
|
||
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{
|
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session_set_cookie_params(
|
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$params['cookie_lifetime'],
|
||
|
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$params['cookie_path'].'; SameSite='.$params['cookie_samesite'],
|
||
|
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$params['cookie_domain'],
|
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|
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$params['cookie_secure'],
|
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TRUE // HttpOnly; Yes, this is intentional and not configurable for security reasons
|
||
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);
|
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}
|
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|
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|
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if (empty($expiration))
|
||
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{
|
||
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$params['expiration'] = (int) ini_get('session.gc_maxlifetime');
|
||
|
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}
|
||
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else
|
||
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{
|
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$params['expiration'] = (int) $expiration;
|
||
|
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ini_set('session.gc_maxlifetime', $expiration);
|
||
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}
|
||
|
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|
||
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$params['match_ip'] = (bool) (isset($params['match_ip']) ? $params['match_ip'] : config_item('sess_match_ip'));
|
||
|
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|
||
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isset($params['save_path']) OR $params['save_path'] = config_item('sess_save_path');
|
||
|
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|
||
|
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$this->_config = $params;
|
||
|
|
|
||
|
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// Security is king
|
||
|
|
ini_set('session.use_trans_sid', 0);
|
||
|
|
ini_set('session.use_strict_mode', 1);
|
||
|
|
ini_set('session.use_cookies', 1);
|
||
|
|
ini_set('session.use_only_cookies', 1);
|
||
|
|
|
||
|
|
$this->_configure_sid_length();
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Configure session ID length
|
||
|
|
*
|
||
|
|
* To make life easier, we used to force SHA-1 and 4 bits per
|
||
|
|
* character on everyone. And of course, someone was unhappy.
|
||
|
|
*
|
||
|
|
* Then PHP 7.1 broke backwards-compatibility because ext/session
|
||
|
|
* is such a mess that nobody wants to touch it with a pole stick,
|
||
|
|
* and the one guy who does, nobody has the energy to argue with.
|
||
|
|
*
|
||
|
|
* So we were forced to make changes, and OF COURSE something was
|
||
|
|
* going to break and now we have this pile of shit. -- Narf
|
||
|
|
*
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
protected function _configure_sid_length()
|
||
|
|
{
|
||
|
|
if (PHP_VERSION_ID < 70100)
|
||
|
|
{
|
||
|
|
$hash_function = ini_get('session.hash_function');
|
||
|
|
if (ctype_digit($hash_function))
|
||
|
|
{
|
||
|
|
if ($hash_function !== '1')
|
||
|
|
{
|
||
|
|
ini_set('session.hash_function', 1);
|
||
|
|
}
|
||
|
|
|
||
|
|
$bits = 160;
|
||
|
|
}
|
||
|
|
elseif ( ! in_array($hash_function, hash_algos(), TRUE))
|
||
|
|
{
|
||
|
|
ini_set('session.hash_function', 1);
|
||
|
|
$bits = 160;
|
||
|
|
}
|
||
|
|
elseif (($bits = strlen(hash($hash_function, 'dummy', false)) * 4) < 160)
|
||
|
|
{
|
||
|
|
ini_set('session.hash_function', 1);
|
||
|
|
$bits = 160;
|
||
|
|
}
|
||
|
|
|
||
|
|
$bits_per_character = (int) ini_get('session.hash_bits_per_character');
|
||
|
|
$sid_length = (int) ceil($bits / $bits_per_character);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
$bits_per_character = (int) ini_get('session.sid_bits_per_character');
|
||
|
|
$sid_length = (int) ini_get('session.sid_length');
|
||
|
|
if (($bits = $sid_length * $bits_per_character) < 160)
|
||
|
|
{
|
||
|
|
// Add as many more characters as necessary to reach at least 160 bits
|
||
|
|
$sid_length += (int) ceil((160 % $bits) / $bits_per_character);
|
||
|
|
ini_set('session.sid_length', $sid_length);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Yes, 4,5,6 are the only known possible values as of 2016-10-27
|
||
|
|
switch ($bits_per_character)
|
||
|
|
{
|
||
|
|
case 4:
|
||
|
|
$this->_sid_regexp = '[0-9a-f]';
|
||
|
|
break;
|
||
|
|
case 5:
|
||
|
|
$this->_sid_regexp = '[0-9a-v]';
|
||
|
|
break;
|
||
|
|
case 6:
|
||
|
|
$this->_sid_regexp = '[0-9a-zA-Z,-]';
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->_sid_regexp .= '{'.$sid_length.'}';
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Handle temporary variables
|
||
|
|
*
|
||
|
|
* Clears old "flash" data, marks the new one for deletion and handles
|
||
|
|
* "temp" data deletion.
|
||
|
|
*
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
protected function _ci_init_vars()
|
||
|
|
{
|
||
|
|
if ( ! empty($_SESSION['__ci_vars']))
|
||
|
|
{
|
||
|
|
$current_time = time();
|
||
|
|
|
||
|
|
foreach ($_SESSION['__ci_vars'] as $key => &$value)
|
||
|
|
{
|
||
|
|
if ($value === 'new')
|
||
|
|
{
|
||
|
|
$_SESSION['__ci_vars'][$key] = 'old';
|
||
|
|
}
|
||
|
|
elseif ($value === 'old' || $value < $current_time)
|
||
|
|
{
|
||
|
|
unset($_SESSION[$key], $_SESSION['__ci_vars'][$key]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (empty($_SESSION['__ci_vars']))
|
||
|
|
{
|
||
|
|
unset($_SESSION['__ci_vars']);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->userdata =& $_SESSION;
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Mark as flash
|
||
|
|
*
|
||
|
|
* @param mixed $key Session data key(s)
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
public function mark_as_flash($key)
|
||
|
|
{
|
||
|
|
if (is_array($key))
|
||
|
|
{
|
||
|
|
for ($i = 0, $c = count($key); $i < $c; $i++)
|
||
|
|
{
|
||
|
|
if ( ! isset($_SESSION[$key[$i]]))
|
||
|
|
{
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$new = array_fill_keys($key, 'new');
|
||
|
|
|
||
|
|
$_SESSION['__ci_vars'] = isset($_SESSION['__ci_vars'])
|
||
|
|
? array_merge($_SESSION['__ci_vars'], $new)
|
||
|
|
: $new;
|
||
|
|
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( ! isset($_SESSION[$key]))
|
||
|
|
{
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
$_SESSION['__ci_vars'][$key] = 'new';
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get flash keys
|
||
|
|
*
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public function get_flash_keys()
|
||
|
|
{
|
||
|
|
if ( ! isset($_SESSION['__ci_vars']))
|
||
|
|
{
|
||
|
|
return array();
|
||
|
|
}
|
||
|
|
|
||
|
|
$keys = array();
|
||
|
|
foreach (array_keys($_SESSION['__ci_vars']) as $key)
|
||
|
|
{
|
||
|
|
is_int($_SESSION['__ci_vars'][$key]) OR $keys[] = $key;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $keys;
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Unmark flash
|
||
|
|
*
|
||
|
|
* @param mixed $key Session data key(s)
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public function unmark_flash($key)
|
||
|
|
{
|
||
|
|
if (empty($_SESSION['__ci_vars']))
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
is_array($key) OR $key = array($key);
|
||
|
|
|
||
|
|
foreach ($key as $k)
|
||
|
|
{
|
||
|
|
if (isset($_SESSION['__ci_vars'][$k]) && ! is_int($_SESSION['__ci_vars'][$k]))
|
||
|
|
{
|
||
|
|
unset($_SESSION['__ci_vars'][$k]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (empty($_SESSION['__ci_vars']))
|
||
|
|
{
|
||
|
|
unset($_SESSION['__ci_vars']);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Mark as temp
|
||
|
|
*
|
||
|
|
* @param mixed $key Session data key(s)
|
||
|
|
* @param int $ttl Time-to-live in seconds
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
public function mark_as_temp($key, $ttl = 300)
|
||
|
|
{
|
||
|
|
$ttl += time();
|
||
|
|
|
||
|
|
if (is_array($key))
|
||
|
|
{
|
||
|
|
$temp = array();
|
||
|
|
|
||
|
|
foreach ($key as $k => $v)
|
||
|
|
{
|
||
|
|
// Do we have a key => ttl pair, or just a key?
|
||
|
|
if (is_int($k))
|
||
|
|
{
|
||
|
|
$k = $v;
|
||
|
|
$v = $ttl;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
$v += time();
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( ! isset($_SESSION[$k]))
|
||
|
|
{
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
$temp[$k] = $v;
|
||
|
|
}
|
||
|
|
|
||
|
|
$_SESSION['__ci_vars'] = isset($_SESSION['__ci_vars'])
|
||
|
|
? array_merge($_SESSION['__ci_vars'], $temp)
|
||
|
|
: $temp;
|
||
|
|
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( ! isset($_SESSION[$key]))
|
||
|
|
{
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
$_SESSION['__ci_vars'][$key] = $ttl;
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get temp keys
|
||
|
|
*
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public function get_temp_keys()
|
||
|
|
{
|
||
|
|
if ( ! isset($_SESSION['__ci_vars']))
|
||
|
|
{
|
||
|
|
return array();
|
||
|
|
}
|
||
|
|
|
||
|
|
$keys = array();
|
||
|
|
foreach (array_keys($_SESSION['__ci_vars']) as $key)
|
||
|
|
{
|
||
|
|
is_int($_SESSION['__ci_vars'][$key]) && $keys[] = $key;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $keys;
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Unmark temp
|
||
|
|
*
|
||
|
|
* @param mixed $key Session data key(s)
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public function unmark_temp($key)
|
||
|
|
{
|
||
|
|
if (empty($_SESSION['__ci_vars']))
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
is_array($key) OR $key = array($key);
|
||
|
|
|
||
|
|
foreach ($key as $k)
|
||
|
|
{
|
||
|
|
if (isset($_SESSION['__ci_vars'][$k]) && is_int($_SESSION['__ci_vars'][$k]))
|
||
|
|
{
|
||
|
|
unset($_SESSION['__ci_vars'][$k]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (empty($_SESSION['__ci_vars']))
|
||
|
|
{
|
||
|
|
unset($_SESSION['__ci_vars']);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* __get()
|
||
|
|
*
|
||
|
|
* @param string $key 'session_id' or a session data key
|
||
|
|
* @return mixed
|
||
|
|
*/
|
||
|
|
public function __get($key)
|
||
|
|
{
|
||
|
|
// Note: Keep this order the same, just in case somebody wants to
|
||
|
|
// use 'session_id' as a session data key, for whatever reason
|
||
|
|
if (isset($_SESSION[$key]))
|
||
|
|
{
|
||
|
|
return $_SESSION[$key];
|
||
|
|
}
|
||
|
|
elseif ($key === 'session_id')
|
||
|
|
{
|
||
|
|
return session_id();
|
||
|
|
}
|
||
|
|
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* __isset()
|
||
|
|
*
|
||
|
|
* @param string $key 'session_id' or a session data key
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
public function __isset($key)
|
||
|
|
{
|
||
|
|
if ($key === 'session_id')
|
||
|
|
{
|
||
|
|
return (session_status() === PHP_SESSION_ACTIVE);
|
||
|
|
}
|
||
|
|
|
||
|
|
return isset($_SESSION[$key]);
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* __set()
|
||
|
|
*
|
||
|
|
* @param string $key Session data key
|
||
|
|
* @param mixed $value Session data value
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public function __set($key, $value)
|
||
|
|
{
|
||
|
|
$_SESSION[$key] = $value;
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Session destroy
|
||
|
|
*
|
||
|
|
* Legacy CI_Session compatibility method
|
||
|
|
*
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public function sess_destroy()
|
||
|
|
{
|
||
|
|
session_destroy();
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Session regenerate
|
||
|
|
*
|
||
|
|
* Legacy CI_Session compatibility method
|
||
|
|
*
|
||
|
|
* @param bool $destroy Destroy old session data flag
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public function sess_regenerate($destroy = FALSE)
|
||
|
|
{
|
||
|
|
$_SESSION['__ci_last_regenerate'] = time();
|
||
|
|
session_regenerate_id($destroy);
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get userdata reference
|
||
|
|
*
|
||
|
|
* Legacy CI_Session compatibility method
|
||
|
|
*
|
||
|
|
* @return array
|
||
|
|
*/
|
||
|
|
public function &get_userdata()
|
||
|
|
{
|
||
|
|
return $_SESSION;
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Userdata (fetch)
|
||
|
|
*
|
||
|
|
* Legacy CI_Session compatibility method
|
||
|
|
*
|
||
|
|
* @param string $key Session data key
|
||
|
|
* @return mixed Session data value or NULL if not found
|
||
|
|
*/
|
||
|
|
public function userdata($key = NULL)
|
||
|
|
{
|
||
|
|
if (isset($key))
|
||
|
|
{
|
||
|
|
return isset($_SESSION[$key]) ? $_SESSION[$key] : NULL;
|
||
|
|
}
|
||
|
|
elseif (empty($_SESSION))
|
||
|
|
{
|
||
|
|
return array();
|
||
|
|
}
|
||
|
|
|
||
|
|
$userdata = array();
|
||
|
|
$_exclude = array_merge(
|
||
|
|
array('__ci_vars'),
|
||
|
|
$this->get_flash_keys(),
|
||
|
|
$this->get_temp_keys()
|
||
|
|
);
|
||
|
|
|
||
|
|
foreach (array_keys($_SESSION) as $key)
|
||
|
|
{
|
||
|
|
if ( ! in_array($key, $_exclude, TRUE))
|
||
|
|
{
|
||
|
|
$userdata[$key] = $_SESSION[$key];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $userdata;
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set userdata
|
||
|
|
*
|
||
|
|
* Legacy CI_Session compatibility method
|
||
|
|
*
|
||
|
|
* @param mixed $data Session data key or an associative array
|
||
|
|
* @param mixed $value Value to store
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public function set_userdata($data, $value = NULL)
|
||
|
|
{
|
||
|
|
if (is_array($data))
|
||
|
|
{
|
||
|
|
foreach ($data as $key => &$value)
|
||
|
|
{
|
||
|
|
$_SESSION[$key] = $value;
|
||
|
|
}
|
||
|
|
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
$_SESSION[$data] = $value;
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Unset userdata
|
||
|
|
*
|
||
|
|
* Legacy CI_Session compatibility method
|
||
|
|
*
|
||
|
|
* @param mixed $key Session data key(s)
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public function unset_userdata($key)
|
||
|
|
{
|
||
|
|
if (is_array($key))
|
||
|
|
{
|
||
|
|
foreach ($key as $k)
|
||
|
|
{
|
||
|
|
unset($_SESSION[$k]);
|
||
|
|
}
|
||
|
|
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
unset($_SESSION[$key]);
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* All userdata (fetch)
|
||
|
|
*
|
||
|
|
* Legacy CI_Session compatibility method
|
||
|
|
*
|
||
|
|
* @return array $_SESSION, excluding flash data items
|
||
|
|
*/
|
||
|
|
public function all_userdata()
|
||
|
|
{
|
||
|
|
return $this->userdata();
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Has userdata
|
||
|
|
*
|
||
|
|
* Legacy CI_Session compatibility method
|
||
|
|
*
|
||
|
|
* @param string $key Session data key
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
public function has_userdata($key)
|
||
|
|
{
|
||
|
|
return isset($_SESSION[$key]);
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Flashdata (fetch)
|
||
|
|
*
|
||
|
|
* Legacy CI_Session compatibility method
|
||
|
|
*
|
||
|
|
* @param string $key Session data key
|
||
|
|
* @return mixed Session data value or NULL if not found
|
||
|
|
*/
|
||
|
|
public function flashdata($key = NULL)
|
||
|
|
{
|
||
|
|
if (isset($key))
|
||
|
|
{
|
||
|
|
return (isset($_SESSION['__ci_vars'], $_SESSION['__ci_vars'][$key], $_SESSION[$key]) && ! is_int($_SESSION['__ci_vars'][$key]))
|
||
|
|
? $_SESSION[$key]
|
||
|
|
: NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
$flashdata = array();
|
||
|
|
|
||
|
|
if ( ! empty($_SESSION['__ci_vars']))
|
||
|
|
{
|
||
|
|
foreach ($_SESSION['__ci_vars'] as $key => &$value)
|
||
|
|
{
|
||
|
|
is_int($value) OR $flashdata[$key] = $_SESSION[$key];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $flashdata;
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set flashdata
|
||
|
|
*
|
||
|
|
* Legacy CI_Session compatibility method
|
||
|
|
*
|
||
|
|
* @param mixed $data Session data key or an associative array
|
||
|
|
* @param mixed $value Value to store
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public function set_flashdata($data, $value = NULL)
|
||
|
|
{
|
||
|
|
$this->set_userdata($data, $value);
|
||
|
|
$this->mark_as_flash(is_array($data) ? array_keys($data) : $data);
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Keep flashdata
|
||
|
|
*
|
||
|
|
* Legacy CI_Session compatibility method
|
||
|
|
*
|
||
|
|
* @param mixed $key Session data key(s)
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public function keep_flashdata($key)
|
||
|
|
{
|
||
|
|
$this->mark_as_flash($key);
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Temp data (fetch)
|
||
|
|
*
|
||
|
|
* Legacy CI_Session compatibility method
|
||
|
|
*
|
||
|
|
* @param string $key Session data key
|
||
|
|
* @return mixed Session data value or NULL if not found
|
||
|
|
*/
|
||
|
|
public function tempdata($key = NULL)
|
||
|
|
{
|
||
|
|
if (isset($key))
|
||
|
|
{
|
||
|
|
return (isset($_SESSION['__ci_vars'], $_SESSION['__ci_vars'][$key], $_SESSION[$key]) && is_int($_SESSION['__ci_vars'][$key]))
|
||
|
|
? $_SESSION[$key]
|
||
|
|
: NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
$tempdata = array();
|
||
|
|
|
||
|
|
if ( ! empty($_SESSION['__ci_vars']))
|
||
|
|
{
|
||
|
|
foreach ($_SESSION['__ci_vars'] as $key => &$value)
|
||
|
|
{
|
||
|
|
is_int($value) && $tempdata[$key] = $_SESSION[$key];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $tempdata;
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set tempdata
|
||
|
|
*
|
||
|
|
* Legacy CI_Session compatibility method
|
||
|
|
*
|
||
|
|
* @param mixed $data Session data key or an associative array of items
|
||
|
|
* @param mixed $value Value to store
|
||
|
|
* @param int $ttl Time-to-live in seconds
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public function set_tempdata($data, $value = NULL, $ttl = 300)
|
||
|
|
{
|
||
|
|
$this->set_userdata($data, $value);
|
||
|
|
$this->mark_as_temp(is_array($data) ? array_keys($data) : $data, $ttl);
|
||
|
|
}
|
||
|
|
|
||
|
|
// ------------------------------------------------------------------------
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Unset tempdata
|
||
|
|
*
|
||
|
|
* Legacy CI_Session compatibility method
|
||
|
|
*
|
||
|
|
* @param mixed $data Session data key(s)
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public function unset_tempdata($key)
|
||
|
|
{
|
||
|
|
$this->unmark_temp($key);
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|