$

node_modules/spdy-transport/lib/spdy-transport.js

@@ -0,0 +1,25 @@
+'use strict'
+
+var transport = exports
+
+// Exports utils
+transport.utils = require('./spdy-transport/utils')
+
+// Export parser&framer
+transport.protocol = {}
+transport.protocol.base = require('./spdy-transport/protocol/base')
+transport.protocol.spdy = require('./spdy-transport/protocol/spdy')
+transport.protocol.http2 = require('./spdy-transport/protocol/http2')
+
+// Window
+transport.Window = require('./spdy-transport/window')
+
+// Priority Tree
+transport.Priority = require('./spdy-transport/priority')
+
+// Export Connection and Stream
+transport.Stream = require('./spdy-transport/stream').Stream
+transport.Connection = require('./spdy-transport/connection').Connection
+
+// Just for `transport.connection.create()`
+transport.connection = transport.Connection

node_modules/spdy-transport/lib/spdy-transport/priority.js

@@ -0,0 +1,188 @@
+'use strict'
+
+var transport = require('../spdy-transport')
+var utils = transport.utils
+
+var assert = require('assert')
+var debug = require('debug')('spdy:priority')
+
+function PriorityNode (tree, options) {
+  this.tree = tree
+
+  this.id = options.id
+  this.parent = options.parent
+  this.weight = options.weight
+
+  // To be calculated in `addChild`
+  this.priorityFrom = 0
+  this.priorityTo = 1
+  this.priority = 1
+
+  this.children = {
+    list: [],
+    weight: 0
+  }
+
+  if (this.parent !== null) {
+    this.parent.addChild(this)
+  }
+}
+
+function compareChildren (a, b) {
+  return a.weight === b.weight ? a.id - b.id : a.weight - b.weight
+}
+
+PriorityNode.prototype.toJSON = function toJSON () {
+  return {
+    parent: this.parent,
+    weight: this.weight,
+    exclusive: this.exclusive
+  }
+}
+
+PriorityNode.prototype.getPriority = function getPriority () {
+  return this.priority
+}
+
+PriorityNode.prototype.getPriorityRange = function getPriorityRange () {
+  return { from: this.priorityFrom, to: this.priorityTo }
+}
+
+PriorityNode.prototype.addChild = function addChild (child) {
+  child.parent = this
+  utils.binaryInsert(this.children.list, child, compareChildren)
+  this.children.weight += child.weight
+
+  this._updatePriority(this.priorityFrom, this.priorityTo)
+}
+
+PriorityNode.prototype.remove = function remove () {
+  assert(this.parent, 'Can\'t remove root node')
+
+  this.parent.removeChild(this)
+  this.tree._removeNode(this)
+
+  // Move all children to the parent
+  for (var i = 0; i < this.children.list.length; i++) {
+    this.parent.addChild(this.children.list[i])
+  }
+}
+
+PriorityNode.prototype.removeChild = function removeChild (child) {
+  this.children.weight -= child.weight
+  var index = utils.binarySearch(this.children.list, child, compareChildren)
+  if (index !== -1 && this.children.list.length >= index) {
+    this.children.list.splice(index, 1)
+  }
+}
+
+PriorityNode.prototype.removeChildren = function removeChildren () {
+  var children = this.children.list
+  this.children.list = []
+  this.children.weight = 0
+  return children
+}
+
+PriorityNode.prototype._updatePriority = function _updatePriority (from, to) {
+  this.priority = to - from
+  this.priorityFrom = from
+  this.priorityTo = to
+
+  var weight = 0
+  for (var i = 0; i < this.children.list.length; i++) {
+    var node = this.children.list[i]
+    var nextWeight = weight + node.weight
+
+    node._updatePriority(
+      from + this.priority * (weight / this.children.weight),
+      from + this.priority * (nextWeight / this.children.weight)
+    )
+    weight = nextWeight
+  }
+}
+
+function PriorityTree (options) {
+  this.map = {}
+  this.list = []
+  this.defaultWeight = options.defaultWeight || 16
+
+  this.count = 0
+  this.maxCount = options.maxCount
+
+  // Root
+  this.root = this.add({
+    id: 0,
+    parent: null,
+    weight: 1
+  })
+}
+module.exports = PriorityTree
+
+PriorityTree.create = function create (options) {
+  return new PriorityTree(options)
+}
+
+PriorityTree.prototype.add = function add (options) {
+  if (options.id === options.parent) {
+    return this.addDefault(options.id)
+  }
+
+  var parent = options.parent === null ? null : this.map[options.parent]
+  if (parent === undefined) {
+    return this.addDefault(options.id)
+  }
+
+  debug('add node=%d parent=%d weight=%d exclusive=%d',
+    options.id,
+    options.parent === null ? -1 : options.parent,
+    options.weight || this.defaultWeight,
+    options.exclusive ? 1 : 0)
+
+  var children
+  if (options.exclusive) {
+    children = parent.removeChildren()
+  }
+
+  var node = new PriorityNode(this, {
+    id: options.id,
+    parent: parent,
+    weight: options.weight || this.defaultWeight
+  })
+  this.map[options.id] = node
+
+  if (options.exclusive) {
+    for (var i = 0; i < children.length; i++) {
+      node.addChild(children[i])
+    }
+  }
+
+  this.count++
+  if (this.count > this.maxCount) {
+    debug('hit maximum remove id=%d', this.list[0].id)
+    this.list.shift().remove()
+  }
+
+  // Root node is not subject to removal
+  if (node.parent !== null) {
+    this.list.push(node)
+  }
+
+  return node
+}
+
+// Only for testing, should use `node`'s methods
+PriorityTree.prototype.get = function get (id) {
+  return this.map[id]
+}
+
+PriorityTree.prototype.addDefault = function addDefault (id) {
+  debug('creating default node')
+  return this.add({ id: id, parent: 0, weight: this.defaultWeight })
+}
+
+PriorityTree.prototype._removeNode = function _removeNode (node) {
+  delete this.map[node.id]
+  var index = utils.binarySearch(this.list, node, compareChildren)
+  this.list.splice(index, 1)
+  this.count--
+}

node_modules/spdy-transport/lib/spdy-transport/protocol/base/constants.js

@@ -0,0 +1,4 @@
+exports.DEFAULT_METHOD = 'GET'
+exports.DEFAULT_HOST = 'localhost'
+exports.MAX_PRIORITY_STREAMS = 100
+exports.DEFAULT_MAX_CHUNK = 8 * 1024

node_modules/spdy-transport/lib/spdy-transport/protocol/base/framer.js

@@ -0,0 +1,58 @@
+'use strict'
+
+var util = require('util')
+
+var transport = require('../../../spdy-transport')
+var base = require('./')
+var Scheduler = base.Scheduler
+
+function Framer (options) {
+  Scheduler.call(this)
+
+  this.version = null
+  this.compress = null
+  this.window = options.window
+  this.timeout = options.timeout
+
+  // Wait for `enablePush`
+  this.pushEnabled = null
+}
+util.inherits(Framer, Scheduler)
+module.exports = Framer
+
+Framer.prototype.setVersion = function setVersion (version) {
+  this.version = version
+  this.emit('version')
+}
+
+Framer.prototype.setCompression = function setCompresion (pair) {
+  this.compress = new transport.utils.LockStream(pair.compress)
+}
+
+Framer.prototype.enablePush = function enablePush (enable) {
+  this.pushEnabled = enable
+  this.emit('_pushEnabled')
+}
+
+Framer.prototype._checkPush = function _checkPush (callback) {
+  if (this.pushEnabled === null) {
+    this.once('_pushEnabled', function () {
+      this._checkPush(callback)
+    })
+    return
+  }
+
+  var err = null
+  if (!this.pushEnabled) {
+    err = new Error('PUSH_PROMISE disabled by other side')
+  }
+  process.nextTick(function () {
+    return callback(err)
+  })
+}
+
+Framer.prototype._resetTimeout = function _resetTimeout () {
+  if (this.timeout) {
+    this.timeout.reset()
+  }
+}

node_modules/spdy-transport/lib/spdy-transport/protocol/base/index.js

@@ -0,0 +1,7 @@
+'use strict'
+
+exports.utils = require('./utils')
+exports.constants = require('./constants')
+exports.Scheduler = require('./scheduler')
+exports.Parser = require('./parser')
+exports.Framer = require('./framer')

node_modules/spdy-transport/lib/spdy-transport/protocol/base/parser.js

@@ -0,0 +1,106 @@
+'use strict'
+
+var transport = require('../../../spdy-transport')
+
+var util = require('util')
+var utils = require('./').utils
+var OffsetBuffer = require('obuf')
+var Transform = require('readable-stream').Transform
+
+function Parser (options) {
+  Transform.call(this, {
+    readableObjectMode: true
+  })
+
+  this.buffer = new OffsetBuffer()
+  this.partial = false
+  this.waiting = 0
+
+  this.window = options.window
+
+  this.version = null
+  this.decompress = null
+  this.dead = false
+}
+module.exports = Parser
+util.inherits(Parser, Transform)
+
+Parser.prototype.error = utils.error
+
+Parser.prototype.kill = function kill () {
+  this.dead = true
+}
+
+Parser.prototype._transform = function transform (data, encoding, cb) {
+  if (!this.dead) { this.buffer.push(data) }
+
+  this._consume(cb)
+}
+
+Parser.prototype._consume = function _consume (cb) {
+  var self = this
+
+  function next (err, frame) {
+    if (err) {
+      return cb(err)
+    }
+
+    if (Array.isArray(frame)) {
+      for (var i = 0; i < frame.length; i++) {
+        self.push(frame[i])
+      }
+    } else if (frame) {
+      self.push(frame)
+    }
+
+    // Consume more packets
+    if (!sync) {
+      return self._consume(cb)
+    }
+
+    process.nextTick(function () {
+      self._consume(cb)
+    })
+  }
+
+  if (this.dead) {
+    return cb()
+  }
+
+  if (this.buffer.size < this.waiting) {
+    // No data at all
+    if (this.buffer.size === 0) {
+      return cb()
+    }
+
+    // Partial DATA frame or something that we can process partially
+    if (this.partial) {
+      var partial = this.buffer.clone(this.buffer.size)
+      this.buffer.skip(partial.size)
+      this.waiting -= partial.size
+
+      this.executePartial(partial, next)
+      return
+    }
+
+    // We shall not do anything until we get all expected data
+    return cb()
+  }
+
+  var sync = true
+
+  var content = this.buffer.clone(this.waiting)
+  this.buffer.skip(this.waiting)
+
+  this.execute(content, next)
+  sync = false
+}
+
+Parser.prototype.setVersion = function setVersion (version) {
+  this.version = version
+  this.emit('version', version)
+}
+
+Parser.prototype.setCompression = function setCompresion (pair) {
+  this.decompress = new transport.utils.LockStream(pair.decompress)
+}

node_modules/spdy-transport/lib/spdy-transport/protocol/base/scheduler.js

@@ -0,0 +1,216 @@
+'use strict'
+
+var transport = require('../../../spdy-transport')
+var utils = transport.utils
+
+var assert = require('assert')
+var util = require('util')
+var debug = require('debug')('spdy:scheduler')
+var Readable = require('readable-stream').Readable
+
+/*
+ * We create following structure in `pending`:
+ * [ [ id = 0 ], [ id = 1 ], [ id = 2 ], [ id = 0 ] ]
+ *     chunks      chunks      chunks      chunks
+ *     chunks                  chunks
+ *     chunks
+ *
+ * Then on the `.tick()` pass we pick one chunks from each item and remove the
+ * item if it is empty:
+ *
+ * [ [ id = 0 ], [ id = 2 ] ]
+ *     chunks      chunks
+ *     chunks
+ *
+ * Writing out: chunks for 0, chunks for 1, chunks for 2, chunks for 0
+ *
+ * This way data is interleaved between the different streams.
+ */
+
+function Scheduler (options) {
+  Readable.call(this)
+
+  // Pretty big window by default
+  this.window = 0.25
+
+  if (options && options.window) { this.window = options.window }
+
+  this.sync = []
+  this.list = []
+  this.count = 0
+  this.pendingTick = false
+}
+util.inherits(Scheduler, Readable)
+module.exports = Scheduler
+
+// Just for testing, really
+Scheduler.create = function create (options) {
+  return new Scheduler(options)
+}
+
+function insertCompare (a, b) {
+  return a.priority === b.priority
+    ? a.stream - b.stream
+    : b.priority - a.priority
+}
+
+Scheduler.prototype.schedule = function schedule (data) {
+  var priority = data.priority
+  var stream = data.stream
+  var chunks = data.chunks
+
+  // Synchronous frames should not be interleaved
+  if (priority === false) {
+    debug('queue sync', chunks)
+    this.sync.push(data)
+    this.count += chunks.length
+
+    this._read()
+    return
+  }
+
+  debug('queue async priority=%d stream=%d', priority, stream, chunks)
+  var item = new SchedulerItem(stream, priority)
+  var index = utils.binaryLookup(this.list, item, insertCompare)
+
+  // Push new item
+  if (index >= this.list.length || insertCompare(this.list[index], item) !== 0) {
+    this.list.splice(index, 0, item)
+  } else { // Coalesce
+    item = this.list[index]
+  }
+
+  item.push(data)
+
+  this.count += chunks.length
+
+  this._read()
+}
+
+Scheduler.prototype._read = function _read () {
+  if (this.count === 0) {
+    return
+  }
+
+  if (this.pendingTick) {
+    return
+  }
+  this.pendingTick = true
+
+  var self = this
+  process.nextTick(function () {
+    self.pendingTick = false
+    self.tick()
+  })
+}
+
+Scheduler.prototype.tick = function tick () {
+  // No luck for async frames
+  if (!this.tickSync()) { return false }
+
+  return this.tickAsync()
+}
+
+Scheduler.prototype.tickSync = function tickSync () {
+  // Empty sync queue first
+  var sync = this.sync
+  var res = true
+  this.sync = []
+  for (var i = 0; i < sync.length; i++) {
+    var item = sync[i]
+    debug('tick sync pending=%d', this.count, item.chunks)
+    for (var j = 0; j < item.chunks.length; j++) {
+      this.count--
+      // TODO: handle stream backoff properly
+      try {
+        res = this.push(item.chunks[j])
+      } catch (err) {
+        this.emit('error', err)
+        return false
+      }
+    }
+    debug('after tick sync pending=%d', this.count)
+
+    // TODO(indutny): figure out the way to invoke callback on actual write
+    if (item.callback) {
+      item.callback(null)
+    }
+  }
+  return res
+}
+
+Scheduler.prototype.tickAsync = function tickAsync () {
+  var res = true
+  var list = this.list
+  if (list.length === 0) {
+    return res
+  }
+
+  var startPriority = list[0].priority
+  for (var index = 0; list.length > 0; index++) {
+    // Loop index
+    index %= list.length
+    if (startPriority - list[index].priority > this.window) { index = 0 }
+    debug('tick async index=%d start=%d', index, startPriority)
+
+    var current = list[index]
+    var item = current.shift()
+
+    if (current.isEmpty()) {
+      list.splice(index, 1)
+      if (index === 0 && list.length > 0) {
+        startPriority = list[0].priority
+      }
+      index--
+    }
+
+    debug('tick async pending=%d', this.count, item.chunks)
+    for (var i = 0; i < item.chunks.length; i++) {
+      this.count--
+      // TODO: handle stream backoff properly
+      try {
+        res = this.push(item.chunks[i])
+      } catch (err) {
+        this.emit('error', err)
+        return false
+      }
+    }
+    debug('after tick pending=%d', this.count)
+
+    // TODO(indutny): figure out the way to invoke callback on actual write
+    if (item.callback) {
+      item.callback(null)
+    }
+    if (!res) { break }
+  }
+
+  return res
+}
+
+Scheduler.prototype.dump = function dump () {
+  this.tickSync()
+
+  // Write everything out
+  while (!this.tickAsync()) {
+    // Intentional no-op
+  }
+  assert.strictEqual(this.count, 0)
+}
+
+function SchedulerItem (stream, priority) {
+  this.stream = stream
+  this.priority = priority
+  this.queue = []
+}
+
+SchedulerItem.prototype.push = function push (chunks) {
+  this.queue.push(chunks)
+}
+
+SchedulerItem.prototype.shift = function shift () {
+  return this.queue.shift()
+}
+
+SchedulerItem.prototype.isEmpty = function isEmpty () {
+  return this.queue.length === 0
+}

node_modules/spdy-transport/lib/spdy-transport/protocol/base/utils.js

@@ -0,0 +1,94 @@
+'use strict'
+
+var utils = exports
+
+var util = require('util')
+
+function ProtocolError (code, message) {
+  this.code = code
+  this.message = message
+}
+util.inherits(ProtocolError, Error)
+utils.ProtocolError = ProtocolError
+
+utils.error = function error (code, message) {
+  return new ProtocolError(code, message)
+}
+
+utils.reverse = function reverse (object) {
+  var result = []
+
+  Object.keys(object).forEach(function (key) {
+    result[object[key] | 0] = key
+  })
+
+  return result
+}
+
+// weight [1, 36] <=> priority [0, 7]
+// This way weight=16 is preserved and has priority=3
+utils.weightToPriority = function weightToPriority (weight) {
+  return ((Math.min(35, (weight - 1)) / 35) * 7) | 0
+}
+
+utils.priorityToWeight = function priorityToWeight (priority) {
+  return (((priority / 7) * 35) | 0) + 1
+}
+
+// Copy-Paste from node
+exports.addHeaderLine = function addHeaderLine (field, value, dest) {
+  field = field.toLowerCase()
+  if (/^:/.test(field)) {
+    dest[field] = value
+    return
+  }
+
+  switch (field) {
+    // Array headers:
+    case 'set-cookie':
+      if (dest[field] !== undefined) {
+        dest[field].push(value)
+      } else {
+        dest[field] = [ value ]
+      }
+      break
+
+    /* eslint-disable max-len */
+    // list is taken from:
+    /* eslint-enable max-len */
+    case 'content-type':
+    case 'content-length':
+    case 'user-agent':
+    case 'referer':
+    case 'host':
+    case 'authorization':
+    case 'proxy-authorization':
+    case 'if-modified-since':
+    case 'if-unmodified-since':
+    case 'from':
+    case 'location':
+    case 'max-forwards':
+      // drop duplicates
+      if (dest[field] === undefined) {
+        dest[field] = value
+      }
+      break
+
+    case 'cookie':
+      // make semicolon-separated list
+      if (dest[field] !== undefined) {
+        dest[field] += '; ' + value
+      } else {
+        dest[field] = value
+      }
+      break
+
+    default:
+      // make comma-separated list
+      if (dest[field] !== undefined) {
+        dest[field] += ', ' + value
+      } else {
+        dest[field] = value
+      }
+  }
+}

node_modules/spdy-transport/lib/spdy-transport/protocol/http2/constants.js

@@ -0,0 +1,93 @@
+'use strict'
+
+var transport = require('../../../spdy-transport')
+var base = transport.protocol.base
+
+exports.PREFACE_SIZE = 24
+exports.PREFACE = 'PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n'
+exports.PREFACE_BUFFER = Buffer.from(exports.PREFACE)
+
+exports.PING_OPAQUE_SIZE = 8
+
+exports.FRAME_HEADER_SIZE = 9
+exports.INITIAL_MAX_FRAME_SIZE = 16384
+exports.ABSOLUTE_MAX_FRAME_SIZE = 16777215
+exports.HEADER_TABLE_SIZE = 4096
+exports.DEFAULT_MAX_HEADER_LIST_SIZE = 80 * 1024 // as in http_parser
+exports.MAX_INITIAL_WINDOW_SIZE = 2147483647
+
+exports.DEFAULT_WEIGHT = 16
+
+exports.MAX_CONCURRENT_STREAMS = Infinity
+
+exports.frameType = {
+  DATA: 0,
+  HEADERS: 1,
+  PRIORITY: 2,
+  RST_STREAM: 3,
+  SETTINGS: 4,
+  PUSH_PROMISE: 5,
+  PING: 6,
+  GOAWAY: 7,
+  WINDOW_UPDATE: 8,
+  CONTINUATION: 9,
+
+  // Custom
+  X_FORWARDED_FOR: 0xde
+}
+
+exports.flags = {
+  ACK: 0x01, // SETTINGS-only
+  END_STREAM: 0x01,
+  END_HEADERS: 0x04,
+  PADDED: 0x08,
+  PRIORITY: 0x20
+}
+
+exports.settings = {
+  SETTINGS_HEADER_TABLE_SIZE: 0x01,
+  SETTINGS_ENABLE_PUSH: 0x02,
+  SETTINGS_MAX_CONCURRENT_STREAMS: 0x03,
+  SETTINGS_INITIAL_WINDOW_SIZE: 0x04,
+  SETTINGS_MAX_FRAME_SIZE: 0x05,
+  SETTINGS_MAX_HEADER_LIST_SIZE: 0x06
+}
+
+exports.settingsIndex = [
+  null,
+  'header_table_size',
+  'enable_push',
+  'max_concurrent_streams',
+  'initial_window_size',
+  'max_frame_size',
+  'max_header_list_size'
+]
+
+exports.error = {
+  OK: 0,
+  NO_ERROR: 0,
+
+  PROTOCOL_ERROR: 1,
+  INTERNAL_ERROR: 2,
+  FLOW_CONTROL_ERROR: 3,
+  SETTINGS_TIMEOUT: 4,
+
+  STREAM_CLOSED: 5,
+  INVALID_STREAM: 5,
+
+  FRAME_SIZE_ERROR: 6,
+  REFUSED_STREAM: 7,
+  CANCEL: 8,
+  COMPRESSION_ERROR: 9,
+  CONNECT_ERROR: 10,
+  ENHANCE_YOUR_CALM: 11,
+  INADEQUATE_SECURITY: 12,
+  HTTP_1_1_REQUIRED: 13
+}
+exports.errorByCode = base.utils.reverse(exports.error)
+
+exports.DEFAULT_WINDOW = 64 * 1024 - 1
+
+exports.goaway = exports.error
+exports.goawayByCode = Object.assign({}, exports.errorByCode)
+exports.goawayByCode[0] = 'OK'

node_modules/spdy-transport/lib/spdy-transport/protocol/http2/hpack-pool.js

@@ -0,0 +1,34 @@
+'use strict'
+
+var constants = require('./').constants
+
+var hpack = require('hpack.js')
+
+function Pool () {
+}
+module.exports = Pool
+
+Pool.create = function create () {
+  return new Pool()
+}
+
+Pool.prototype.get = function get (version) {
+  var options = {
+    table: {
+      maxSize: constants.HEADER_TABLE_SIZE
+    }
+  }
+
+  var compress = hpack.compressor.create(options)
+  var decompress = hpack.decompressor.create(options)
+
+  return {
+    version: version,
+
+    compress: compress,
+    decompress: decompress
+  }
+}
+
+Pool.prototype.put = function put () {
+}

node_modules/spdy-transport/lib/spdy-transport/protocol/http2/index.js

@@ -0,0 +1,8 @@
+'use strict'
+
+exports.name = 'h2'
+
+exports.constants = require('./constants')
+exports.parser = require('./parser')
+exports.framer = require('./framer')
+exports.compressionPool = require('./hpack-pool')

node_modules/spdy-transport/lib/spdy-transport/protocol/spdy/constants.js

@@ -0,0 +1,146 @@
+'use strict'
+
+var transport = require('../../../spdy-transport')
+var base = transport.protocol.base
+
+exports.FRAME_HEADER_SIZE = 8
+
+exports.PING_OPAQUE_SIZE = 4
+
+exports.MAX_CONCURRENT_STREAMS = Infinity
+exports.DEFAULT_MAX_HEADER_LIST_SIZE = Infinity
+
+exports.DEFAULT_WEIGHT = 16
+
+exports.frameType = {
+  SYN_STREAM: 1,
+  SYN_REPLY: 2,
+  RST_STREAM: 3,
+  SETTINGS: 4,
+  PING: 6,
+  GOAWAY: 7,
+  HEADERS: 8,
+  WINDOW_UPDATE: 9,
+
+  // Custom
+  X_FORWARDED_FOR: 0xf000
+}
+
+exports.flags = {
+  FLAG_FIN: 0x01,
+  FLAG_COMPRESSED: 0x02,
+  FLAG_UNIDIRECTIONAL: 0x02
+}
+
+exports.error = {
+  PROTOCOL_ERROR: 1,
+  INVALID_STREAM: 2,
+  REFUSED_STREAM: 3,
+  UNSUPPORTED_VERSION: 4,
+  CANCEL: 5,
+  INTERNAL_ERROR: 6,
+  FLOW_CONTROL_ERROR: 7,
+  STREAM_IN_USE: 8,
+  // STREAM_ALREADY_CLOSED: 9
+  STREAM_CLOSED: 9,
+  INVALID_CREDENTIALS: 10,
+  FRAME_TOO_LARGE: 11
+}
+exports.errorByCode = base.utils.reverse(exports.error)
+
+exports.settings = {
+  FLAG_SETTINGS_PERSIST_VALUE: 1,
+  FLAG_SETTINGS_PERSISTED: 2,
+
+  SETTINGS_UPLOAD_BANDWIDTH: 1,
+  SETTINGS_DOWNLOAD_BANDWIDTH: 2,
+  SETTINGS_ROUND_TRIP_TIME: 3,
+  SETTINGS_MAX_CONCURRENT_STREAMS: 4,
+  SETTINGS_CURRENT_CWND: 5,
+  SETTINGS_DOWNLOAD_RETRANS_RATE: 6,
+  SETTINGS_INITIAL_WINDOW_SIZE: 7,
+  SETTINGS_CLIENT_CERTIFICATE_VECTOR_SIZE: 8
+}
+
+exports.settingsIndex = [
+  null,
+
+  'upload_bandwidth',
+  'download_bandwidth',
+  'round_trip_time',
+  'max_concurrent_streams',
+  'current_cwnd',
+  'download_retrans_rate',
+  'initial_window_size',
+  'client_certificate_vector_size'
+]
+
+exports.DEFAULT_WINDOW = 64 * 1024
+exports.MAX_INITIAL_WINDOW_SIZE = 2147483647
+
+exports.goaway = {
+  OK: 0,
+  PROTOCOL_ERROR: 1,
+  INTERNAL_ERROR: 2
+}
+exports.goawayByCode = base.utils.reverse(exports.goaway)
+
+exports.statusReason = {
+  100: 'Continue',
+  101: 'Switching Protocols',
+  102: 'Processing', // RFC 2518, obsoleted by RFC 4918
+  200: 'OK',
+  201: 'Created',
+  202: 'Accepted',
+  203: 'Non-Authoritative Information',
+  204: 'No Content',
+  205: 'Reset Content',
+  206: 'Partial Content',
+  207: 'Multi-Status', // RFC 4918
+  300: 'Multiple Choices',
+  301: 'Moved Permanently',
+  302: 'Moved Temporarily',
+  303: 'See Other',
+  304: 'Not Modified',
+  305: 'Use Proxy',
+  307: 'Temporary Redirect',
+  308: 'Permanent Redirect', // RFC 7238
+  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 Time-out',
+  409: 'Conflict',
+  410: 'Gone',
+  411: 'Length Required',
+  412: 'Precondition Failed',
+  413: 'Request Entity Too Large',
+  414: 'Request-URI Too Large',
+  415: 'Unsupported Media Type',
+  416: 'Requested Range Not Satisfiable',
+  417: 'Expectation Failed',
+  418: 'I\'m a teapot', // RFC 2324
+  422: 'Unprocessable Entity', // RFC 4918
+  423: 'Locked', // RFC 4918
+  424: 'Failed Dependency', // RFC 4918
+  425: 'Unordered Collection', // RFC 4918
+  426: 'Upgrade Required', // RFC 2817
+  428: 'Precondition Required', // RFC 6585
+  429: 'Too Many Requests', // RFC 6585
+  431: 'Request Header Fields Too Large', // RFC 6585
+  500: 'Internal Server Error',
+  501: 'Not Implemented',
+  502: 'Bad Gateway',
+  503: 'Service Unavailable',
+  504: 'Gateway Time-out',
+  505: 'HTTP Version Not Supported',
+  506: 'Variant Also Negotiates', // RFC 2295
+  507: 'Insufficient Storage', // RFC 4918
+  509: 'Bandwidth Limit Exceeded',
+  510: 'Not Extended', // RFC 2774
+  511: 'Network Authentication Required' // RFC 6585
+}

node_modules/spdy-transport/lib/spdy-transport/protocol/spdy/dictionary.js

@@ -0,0 +1,203 @@
+'use strict'
+
+var dictionary = {}
+module.exports = dictionary
+
+dictionary[2] = Buffer.from([
+  'optionsgetheadpostputdeletetraceacceptaccept-charsetaccept-encodingaccept-',
+  'languageauthorizationexpectfromhostif-modified-sinceif-matchif-none-matchi',
+  'f-rangeif-unmodifiedsincemax-forwardsproxy-authorizationrangerefererteuser',
+  '-agent10010120020120220320420520630030130230330430530630740040140240340440',
+  '5406407408409410411412413414415416417500501502503504505accept-rangesageeta',
+  'glocationproxy-authenticatepublicretry-afterservervarywarningwww-authentic',
+  'ateallowcontent-basecontent-encodingcache-controlconnectiondatetrailertran',
+  'sfer-encodingupgradeviawarningcontent-languagecontent-lengthcontent-locati',
+  'oncontent-md5content-rangecontent-typeetagexpireslast-modifiedset-cookieMo',
+  'ndayTuesdayWednesdayThursdayFridaySaturdaySundayJanFebMarAprMayJunJulAugSe',
+  'pOctNovDecchunkedtext/htmlimage/pngimage/jpgimage/gifapplication/xmlapplic',
+  'ation/xhtmltext/plainpublicmax-agecharset=iso-8859-1utf-8gzipdeflateHTTP/1',
+  '.1statusversionurl\x00'
+].join(''))
+
+dictionary[3] = Buffer.from([
+  0x00, 0x00, 0x00, 0x07, 0x6f, 0x70, 0x74, 0x69, // ....opti
+  0x6f, 0x6e, 0x73, 0x00, 0x00, 0x00, 0x04, 0x68, // ons....h
+  0x65, 0x61, 0x64, 0x00, 0x00, 0x00, 0x04, 0x70, // ead....p
+  0x6f, 0x73, 0x74, 0x00, 0x00, 0x00, 0x03, 0x70, // ost....p
+  0x75, 0x74, 0x00, 0x00, 0x00, 0x06, 0x64, 0x65, // ut....de
+  0x6c, 0x65, 0x74, 0x65, 0x00, 0x00, 0x00, 0x05, // lete....
+  0x74, 0x72, 0x61, 0x63, 0x65, 0x00, 0x00, 0x00, // trace...
+  0x06, 0x61, 0x63, 0x63, 0x65, 0x70, 0x74, 0x00, // .accept.
+  0x00, 0x00, 0x0e, 0x61, 0x63, 0x63, 0x65, 0x70, // ...accep
+  0x74, 0x2d, 0x63, 0x68, 0x61, 0x72, 0x73, 0x65, // t-charse
+  0x74, 0x00, 0x00, 0x00, 0x0f, 0x61, 0x63, 0x63, // t....acc
+  0x65, 0x70, 0x74, 0x2d, 0x65, 0x6e, 0x63, 0x6f, // ept-enco
+  0x64, 0x69, 0x6e, 0x67, 0x00, 0x00, 0x00, 0x0f, // ding....
+  0x61, 0x63, 0x63, 0x65, 0x70, 0x74, 0x2d, 0x6c, // accept-l
+  0x61, 0x6e, 0x67, 0x75, 0x61, 0x67, 0x65, 0x00, // anguage.
+  0x00, 0x00, 0x0d, 0x61, 0x63, 0x63, 0x65, 0x70, // ...accep
+  0x74, 0x2d, 0x72, 0x61, 0x6e, 0x67, 0x65, 0x73, // t-ranges
+  0x00, 0x00, 0x00, 0x03, 0x61, 0x67, 0x65, 0x00, // ....age.
+  0x00, 0x00, 0x05, 0x61, 0x6c, 0x6c, 0x6f, 0x77, // ...allow
+  0x00, 0x00, 0x00, 0x0d, 0x61, 0x75, 0x74, 0x68, // ....auth
+  0x6f, 0x72, 0x69, 0x7a, 0x61, 0x74, 0x69, 0x6f, // orizatio
+  0x6e, 0x00, 0x00, 0x00, 0x0d, 0x63, 0x61, 0x63, // n....cac
+  0x68, 0x65, 0x2d, 0x63, 0x6f, 0x6e, 0x74, 0x72, // he-contr
+  0x6f, 0x6c, 0x00, 0x00, 0x00, 0x0a, 0x63, 0x6f, // ol....co
+  0x6e, 0x6e, 0x65, 0x63, 0x74, 0x69, 0x6f, 0x6e, // nnection
+  0x00, 0x00, 0x00, 0x0c, 0x63, 0x6f, 0x6e, 0x74, // ....cont
+  0x65, 0x6e, 0x74, 0x2d, 0x62, 0x61, 0x73, 0x65, // ent-base
+  0x00, 0x00, 0x00, 0x10, 0x63, 0x6f, 0x6e, 0x74, // ....cont
+  0x65, 0x6e, 0x74, 0x2d, 0x65, 0x6e, 0x63, 0x6f, // ent-enco
+  0x64, 0x69, 0x6e, 0x67, 0x00, 0x00, 0x00, 0x10, // ding....
+  0x63, 0x6f, 0x6e, 0x74, 0x65, 0x6e, 0x74, 0x2d, // content-
+  0x6c, 0x61, 0x6e, 0x67, 0x75, 0x61, 0x67, 0x65, // language
+  0x00, 0x00, 0x00, 0x0e, 0x63, 0x6f, 0x6e, 0x74, // ....cont
+  0x65, 0x6e, 0x74, 0x2d, 0x6c, 0x65, 0x6e, 0x67, // ent-leng
+  0x74, 0x68, 0x00, 0x00, 0x00, 0x10, 0x63, 0x6f, // th....co
+  0x6e, 0x74, 0x65, 0x6e, 0x74, 0x2d, 0x6c, 0x6f, // ntent-lo
+  0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x00, 0x00, // cation..
+  0x00, 0x0b, 0x63, 0x6f, 0x6e, 0x74, 0x65, 0x6e, // ..conten
+  0x74, 0x2d, 0x6d, 0x64, 0x35, 0x00, 0x00, 0x00, // t-md5...
+  0x0d, 0x63, 0x6f, 0x6e, 0x74, 0x65, 0x6e, 0x74, // .content
+  0x2d, 0x72, 0x61, 0x6e, 0x67, 0x65, 0x00, 0x00, // -range..
+  0x00, 0x0c, 0x63, 0x6f, 0x6e, 0x74, 0x65, 0x6e, // ..conten
+  0x74, 0x2d, 0x74, 0x79, 0x70, 0x65, 0x00, 0x00, // t-type..
+  0x00, 0x04, 0x64, 0x61, 0x74, 0x65, 0x00, 0x00, // ..date..
+  0x00, 0x04, 0x65, 0x74, 0x61, 0x67, 0x00, 0x00, // ..etag..
+  0x00, 0x06, 0x65, 0x78, 0x70, 0x65, 0x63, 0x74, // ..expect
+  0x00, 0x00, 0x00, 0x07, 0x65, 0x78, 0x70, 0x69, // ....expi
+  0x72, 0x65, 0x73, 0x00, 0x00, 0x00, 0x04, 0x66, // res....f
+  0x72, 0x6f, 0x6d, 0x00, 0x00, 0x00, 0x04, 0x68, // rom....h
+  0x6f, 0x73, 0x74, 0x00, 0x00, 0x00, 0x08, 0x69, // ost....i
+  0x66, 0x2d, 0x6d, 0x61, 0x74, 0x63, 0x68, 0x00, // f-match.
+  0x00, 0x00, 0x11, 0x69, 0x66, 0x2d, 0x6d, 0x6f, // ...if-mo
+  0x64, 0x69, 0x66, 0x69, 0x65, 0x64, 0x2d, 0x73, // dified-s
+  0x69, 0x6e, 0x63, 0x65, 0x00, 0x00, 0x00, 0x0d, // ince....
+  0x69, 0x66, 0x2d, 0x6e, 0x6f, 0x6e, 0x65, 0x2d, // if-none-
+  0x6d, 0x61, 0x74, 0x63, 0x68, 0x00, 0x00, 0x00, // match...
+  0x08, 0x69, 0x66, 0x2d, 0x72, 0x61, 0x6e, 0x67, // .if-rang
+  0x65, 0x00, 0x00, 0x00, 0x13, 0x69, 0x66, 0x2d, // e....if-
+  0x75, 0x6e, 0x6d, 0x6f, 0x64, 0x69, 0x66, 0x69, // unmodifi
+  0x65, 0x64, 0x2d, 0x73, 0x69, 0x6e, 0x63, 0x65, // ed-since
+  0x00, 0x00, 0x00, 0x0d, 0x6c, 0x61, 0x73, 0x74, // ....last
+  0x2d, 0x6d, 0x6f, 0x64, 0x69, 0x66, 0x69, 0x65, // -modifie
+  0x64, 0x00, 0x00, 0x00, 0x08, 0x6c, 0x6f, 0x63, // d....loc
+  0x61, 0x74, 0x69, 0x6f, 0x6e, 0x00, 0x00, 0x00, // ation...
+  0x0c, 0x6d, 0x61, 0x78, 0x2d, 0x66, 0x6f, 0x72, // .max-for
+  0x77, 0x61, 0x72, 0x64, 0x73, 0x00, 0x00, 0x00, // wards...
+  0x06, 0x70, 0x72, 0x61, 0x67, 0x6d, 0x61, 0x00, // .pragma.
+  0x00, 0x00, 0x12, 0x70, 0x72, 0x6f, 0x78, 0x79, // ...proxy
+  0x2d, 0x61, 0x75, 0x74, 0x68, 0x65, 0x6e, 0x74, // -authent
+  0x69, 0x63, 0x61, 0x74, 0x65, 0x00, 0x00, 0x00, // icate...
+  0x13, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2d, 0x61, // .proxy-a
+  0x75, 0x74, 0x68, 0x6f, 0x72, 0x69, 0x7a, 0x61, // uthoriza
+  0x74, 0x69, 0x6f, 0x6e, 0x00, 0x00, 0x00, 0x05, // tion....
+  0x72, 0x61, 0x6e, 0x67, 0x65, 0x00, 0x00, 0x00, // range...
+  0x07, 0x72, 0x65, 0x66, 0x65, 0x72, 0x65, 0x72, // .referer
+  0x00, 0x00, 0x00, 0x0b, 0x72, 0x65, 0x74, 0x72, // ....retr
+  0x79, 0x2d, 0x61, 0x66, 0x74, 0x65, 0x72, 0x00, // y-after.
+  0x00, 0x00, 0x06, 0x73, 0x65, 0x72, 0x76, 0x65, // ...serve
+  0x72, 0x00, 0x00, 0x00, 0x02, 0x74, 0x65, 0x00, // r....te.
+  0x00, 0x00, 0x07, 0x74, 0x72, 0x61, 0x69, 0x6c, // ...trail
+  0x65, 0x72, 0x00, 0x00, 0x00, 0x11, 0x74, 0x72, // er....tr
+  0x61, 0x6e, 0x73, 0x66, 0x65, 0x72, 0x2d, 0x65, // ansfer-e
+  0x6e, 0x63, 0x6f, 0x64, 0x69, 0x6e, 0x67, 0x00, // ncoding.
+  0x00, 0x00, 0x07, 0x75, 0x70, 0x67, 0x72, 0x61, // ...upgra
+  0x64, 0x65, 0x00, 0x00, 0x00, 0x0a, 0x75, 0x73, // de....us
+  0x65, 0x72, 0x2d, 0x61, 0x67, 0x65, 0x6e, 0x74, // er-agent
+  0x00, 0x00, 0x00, 0x04, 0x76, 0x61, 0x72, 0x79, // ....vary
+  0x00, 0x00, 0x00, 0x03, 0x76, 0x69, 0x61, 0x00, // ....via.
+  0x00, 0x00, 0x07, 0x77, 0x61, 0x72, 0x6e, 0x69, // ...warni
+  0x6e, 0x67, 0x00, 0x00, 0x00, 0x10, 0x77, 0x77, // ng....ww
+  0x77, 0x2d, 0x61, 0x75, 0x74, 0x68, 0x65, 0x6e, // w-authen
+  0x74, 0x69, 0x63, 0x61, 0x74, 0x65, 0x00, 0x00, // ticate..
+  0x00, 0x06, 0x6d, 0x65, 0x74, 0x68, 0x6f, 0x64, // ..method
+  0x00, 0x00, 0x00, 0x03, 0x67, 0x65, 0x74, 0x00, // ....get.
+  0x00, 0x00, 0x06, 0x73, 0x74, 0x61, 0x74, 0x75, // ...statu
+  0x73, 0x00, 0x00, 0x00, 0x06, 0x32, 0x30, 0x30, // s....200
+  0x20, 0x4f, 0x4b, 0x00, 0x00, 0x00, 0x07, 0x76, // .OK....v
+  0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x00, 0x00, // ersion..
+  0x00, 0x08, 0x48, 0x54, 0x54, 0x50, 0x2f, 0x31, // ..HTTP.1
+  0x2e, 0x31, 0x00, 0x00, 0x00, 0x03, 0x75, 0x72, // .1....ur
+  0x6c, 0x00, 0x00, 0x00, 0x06, 0x70, 0x75, 0x62, // l....pub
+  0x6c, 0x69, 0x63, 0x00, 0x00, 0x00, 0x0a, 0x73, // lic....s
+  0x65, 0x74, 0x2d, 0x63, 0x6f, 0x6f, 0x6b, 0x69, // et-cooki
+  0x65, 0x00, 0x00, 0x00, 0x0a, 0x6b, 0x65, 0x65, // e....kee
+  0x70, 0x2d, 0x61, 0x6c, 0x69, 0x76, 0x65, 0x00, // p-alive.
+  0x00, 0x00, 0x06, 0x6f, 0x72, 0x69, 0x67, 0x69, // ...origi
+  0x6e, 0x31, 0x30, 0x30, 0x31, 0x30, 0x31, 0x32, // n1001012
+  0x30, 0x31, 0x32, 0x30, 0x32, 0x32, 0x30, 0x35, // 01202205
+  0x32, 0x30, 0x36, 0x33, 0x30, 0x30, 0x33, 0x30, // 20630030
+  0x32, 0x33, 0x30, 0x33, 0x33, 0x30, 0x34, 0x33, // 23033043
+  0x30, 0x35, 0x33, 0x30, 0x36, 0x33, 0x30, 0x37, // 05306307
+  0x34, 0x30, 0x32, 0x34, 0x30, 0x35, 0x34, 0x30, // 40240540
+  0x36, 0x34, 0x30, 0x37, 0x34, 0x30, 0x38, 0x34, // 64074084
+  0x30, 0x39, 0x34, 0x31, 0x30, 0x34, 0x31, 0x31, // 09410411
+  0x34, 0x31, 0x32, 0x34, 0x31, 0x33, 0x34, 0x31, // 41241341
+  0x34, 0x34, 0x31, 0x35, 0x34, 0x31, 0x36, 0x34, // 44154164
+  0x31, 0x37, 0x35, 0x30, 0x32, 0x35, 0x30, 0x34, // 17502504
+  0x35, 0x30, 0x35, 0x32, 0x30, 0x33, 0x20, 0x4e, // 505203.N
+  0x6f, 0x6e, 0x2d, 0x41, 0x75, 0x74, 0x68, 0x6f, // on-Autho
+  0x72, 0x69, 0x74, 0x61, 0x74, 0x69, 0x76, 0x65, // ritative
+  0x20, 0x49, 0x6e, 0x66, 0x6f, 0x72, 0x6d, 0x61, // .Informa
+  0x74, 0x69, 0x6f, 0x6e, 0x32, 0x30, 0x34, 0x20, // tion204.
+  0x4e, 0x6f, 0x20, 0x43, 0x6f, 0x6e, 0x74, 0x65, // No.Conte
+  0x6e, 0x74, 0x33, 0x30, 0x31, 0x20, 0x4d, 0x6f, // nt301.Mo
+  0x76, 0x65, 0x64, 0x20, 0x50, 0x65, 0x72, 0x6d, // ved.Perm
+  0x61, 0x6e, 0x65, 0x6e, 0x74, 0x6c, 0x79, 0x34, // anently4
+  0x30, 0x30, 0x20, 0x42, 0x61, 0x64, 0x20, 0x52, // 00.Bad.R
+  0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x34, 0x30, // equest40
+  0x31, 0x20, 0x55, 0x6e, 0x61, 0x75, 0x74, 0x68, // 1.Unauth
+  0x6f, 0x72, 0x69, 0x7a, 0x65, 0x64, 0x34, 0x30, // orized40
+  0x33, 0x20, 0x46, 0x6f, 0x72, 0x62, 0x69, 0x64, // 3.Forbid
+  0x64, 0x65, 0x6e, 0x34, 0x30, 0x34, 0x20, 0x4e, // den404.N
+  0x6f, 0x74, 0x20, 0x46, 0x6f, 0x75, 0x6e, 0x64, // ot.Found
+  0x35, 0x30, 0x30, 0x20, 0x49, 0x6e, 0x74, 0x65, // 500.Inte
+  0x72, 0x6e, 0x61, 0x6c, 0x20, 0x53, 0x65, 0x72, // rnal.Ser
+  0x76, 0x65, 0x72, 0x20, 0x45, 0x72, 0x72, 0x6f, // ver.Erro
+  0x72, 0x35, 0x30, 0x31, 0x20, 0x4e, 0x6f, 0x74, // r501.Not
+  0x20, 0x49, 0x6d, 0x70, 0x6c, 0x65, 0x6d, 0x65, // .Impleme
+  0x6e, 0x74, 0x65, 0x64, 0x35, 0x30, 0x33, 0x20, // nted503.
+  0x53, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x20, // Service.
+  0x55, 0x6e, 0x61, 0x76, 0x61, 0x69, 0x6c, 0x61, // Unavaila
+  0x62, 0x6c, 0x65, 0x4a, 0x61, 0x6e, 0x20, 0x46, // bleJan.F
+  0x65, 0x62, 0x20, 0x4d, 0x61, 0x72, 0x20, 0x41, // eb.Mar.A
+  0x70, 0x72, 0x20, 0x4d, 0x61, 0x79, 0x20, 0x4a, // pr.May.J
+  0x75, 0x6e, 0x20, 0x4a, 0x75, 0x6c, 0x20, 0x41, // un.Jul.A
+  0x75, 0x67, 0x20, 0x53, 0x65, 0x70, 0x74, 0x20, // ug.Sept.
+  0x4f, 0x63, 0x74, 0x20, 0x4e, 0x6f, 0x76, 0x20, // Oct.Nov.
+  0x44, 0x65, 0x63, 0x20, 0x30, 0x30, 0x3a, 0x30, // Dec.00.0
+  0x30, 0x3a, 0x30, 0x30, 0x20, 0x4d, 0x6f, 0x6e, // 0.00.Mon
+  0x2c, 0x20, 0x54, 0x75, 0x65, 0x2c, 0x20, 0x57, // ..Tue..W
+  0x65, 0x64, 0x2c, 0x20, 0x54, 0x68, 0x75, 0x2c, // ed..Thu.
+  0x20, 0x46, 0x72, 0x69, 0x2c, 0x20, 0x53, 0x61, // .Fri..Sa
+  0x74, 0x2c, 0x20, 0x53, 0x75, 0x6e, 0x2c, 0x20, // t..Sun..
+  0x47, 0x4d, 0x54, 0x63, 0x68, 0x75, 0x6e, 0x6b, // GMTchunk
+  0x65, 0x64, 0x2c, 0x74, 0x65, 0x78, 0x74, 0x2f, // ed.text.
+  0x68, 0x74, 0x6d, 0x6c, 0x2c, 0x69, 0x6d, 0x61, // html.ima
+  0x67, 0x65, 0x2f, 0x70, 0x6e, 0x67, 0x2c, 0x69, // ge.png.i
+  0x6d, 0x61, 0x67, 0x65, 0x2f, 0x6a, 0x70, 0x67, // mage.jpg
+  0x2c, 0x69, 0x6d, 0x61, 0x67, 0x65, 0x2f, 0x67, // .image.g
+  0x69, 0x66, 0x2c, 0x61, 0x70, 0x70, 0x6c, 0x69, // if.appli
+  0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2f, 0x78, // cation.x
+  0x6d, 0x6c, 0x2c, 0x61, 0x70, 0x70, 0x6c, 0x69, // ml.appli
+  0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x2f, 0x78, // cation.x
+  0x68, 0x74, 0x6d, 0x6c, 0x2b, 0x78, 0x6d, 0x6c, // html.xml
+  0x2c, 0x74, 0x65, 0x78, 0x74, 0x2f, 0x70, 0x6c, // .text.pl
+  0x61, 0x69, 0x6e, 0x2c, 0x74, 0x65, 0x78, 0x74, // ain.text
+  0x2f, 0x6a, 0x61, 0x76, 0x61, 0x73, 0x63, 0x72, // .javascr
+  0x69, 0x70, 0x74, 0x2c, 0x70, 0x75, 0x62, 0x6c, // ipt.publ
+  0x69, 0x63, 0x70, 0x72, 0x69, 0x76, 0x61, 0x74, // icprivat
+  0x65, 0x6d, 0x61, 0x78, 0x2d, 0x61, 0x67, 0x65, // emax-age
+  0x3d, 0x67, 0x7a, 0x69, 0x70, 0x2c, 0x64, 0x65, // .gzip.de
+  0x66, 0x6c, 0x61, 0x74, 0x65, 0x2c, 0x73, 0x64, // flate.sd
+  0x63, 0x68, 0x63, 0x68, 0x61, 0x72, 0x73, 0x65, // chcharse
+  0x74, 0x3d, 0x75, 0x74, 0x66, 0x2d, 0x38, 0x63, // t.utf-8c
+  0x68, 0x61, 0x72, 0x73, 0x65, 0x74, 0x3d, 0x69, // harset.i
+  0x73, 0x6f, 0x2d, 0x38, 0x38, 0x35, 0x39, 0x2d, // so-8859-
+  0x31, 0x2c, 0x75, 0x74, 0x66, 0x2d, 0x2c, 0x2a, // 1.utf-..
+  0x2c, 0x65, 0x6e, 0x71, 0x3d, 0x30, 0x2e // .enq.0.
+])
+
+dictionary[3.1] = dictionary[3]

node_modules/spdy-transport/lib/spdy-transport/protocol/spdy/index.js

@@ -0,0 +1,9 @@
+'use strict'
+
+exports.name = 'spdy'
+
+exports.dictionary = require('./dictionary')
+exports.constants = require('./constants')
+exports.parser = require('./parser')
+exports.framer = require('./framer')
+exports.compressionPool = require('./zlib-pool')

node_modules/spdy-transport/lib/spdy-transport/protocol/spdy/parser.js

@@ -0,0 +1,485 @@
+'use strict'
+
+var parser = exports
+
+var transport = require('../../../spdy-transport')
+var base = transport.protocol.base
+var utils = base.utils
+var constants = require('./constants')
+
+var assert = require('assert')
+var util = require('util')
+var OffsetBuffer = require('obuf')
+
+function Parser (options) {
+  base.Parser.call(this, options)
+
+  this.isServer = options.isServer
+  this.waiting = constants.FRAME_HEADER_SIZE
+  this.state = 'frame-head'
+  this.pendingHeader = null
+}
+util.inherits(Parser, base.Parser)
+
+parser.create = function create (options) {
+  return new Parser(options)
+}
+
+Parser.prototype.setMaxFrameSize = function setMaxFrameSize (size) {
+  // http2-only
+}
+
+Parser.prototype.setMaxHeaderListSize = function setMaxHeaderListSize (size) {
+  // http2-only
+}
+
+// Only for testing
+Parser.prototype.skipPreface = function skipPreface () {
+}
+
+Parser.prototype.execute = function execute (buffer, callback) {
+  if (this.state === 'frame-head') { return this.onFrameHead(buffer, callback) }
+
+  assert(this.state === 'frame-body' && this.pendingHeader !== null)
+
+  var self = this
+  var header = this.pendingHeader
+  this.pendingHeader = null
+
+  this.onFrameBody(header, buffer, function (err, frame) {
+    if (err) {
+      return callback(err)
+    }
+
+    self.state = 'frame-head'
+    self.waiting = constants.FRAME_HEADER_SIZE
+    self.partial = false
+    callback(null, frame)
+  })
+}
+
+Parser.prototype.executePartial = function executePartial (buffer, callback) {
+  var header = this.pendingHeader
+
+  if (this.window) {
+    this.window.recv.update(-buffer.size)
+  }
+
+  // DATA frame
+  callback(null, {
+    type: 'DATA',
+    id: header.id,
+
+    // Partial DATA can't be FIN
+    fin: false,
+    data: buffer.take(buffer.size)
+  })
+}
+
+Parser.prototype.onFrameHead = function onFrameHead (buffer, callback) {
+  var header = {
+    control: (buffer.peekUInt8() & 0x80) === 0x80,
+    version: null,
+    type: null,
+    id: null,
+    flags: null,
+    length: null
+  }
+
+  if (header.control) {
+    header.version = buffer.readUInt16BE() & 0x7fff
+    header.type = buffer.readUInt16BE()
+  } else {
+    header.id = buffer.readUInt32BE(0) & 0x7fffffff
+  }
+  header.flags = buffer.readUInt8()
+  header.length = buffer.readUInt24BE()
+
+  if (this.version === null && header.control) {
+    // TODO(indutny): do ProtocolError here and in the rest of errors
+    if (header.version !== 2 && header.version !== 3) {
+      return callback(new Error('Unsupported SPDY version: ' + header.version))
+    }
+    this.setVersion(header.version)
+  }
+
+  this.state = 'frame-body'
+  this.waiting = header.length
+  this.pendingHeader = header
+  this.partial = !header.control
+
+  callback(null, null)
+}
+
+Parser.prototype.onFrameBody = function onFrameBody (header, buffer, callback) {
+  // Data frame
+  if (!header.control) {
+    // Count received bytes
+    if (this.window) {
+      this.window.recv.update(-buffer.size)
+    }
+
+    // No support for compressed DATA
+    if ((header.flags & constants.flags.FLAG_COMPRESSED) !== 0) {
+      return callback(new Error('DATA compression not supported'))
+    }
+
+    if (header.id === 0) {
+      return callback(this.error(constants.error.PROTOCOL_ERROR,
+        'Invalid stream id for DATA'))
+    }
+
+    return callback(null, {
+      type: 'DATA',
+      id: header.id,
+      fin: (header.flags & constants.flags.FLAG_FIN) !== 0,
+      data: buffer.take(buffer.size)
+    })
+  }
+
+  if (header.type === 0x01 || header.type === 0x02) { // SYN_STREAM or SYN_REPLY
+    this.onSynHeadFrame(header.type, header.flags, buffer, callback)
+  } else if (header.type === 0x03) { // RST_STREAM
+    this.onRSTFrame(buffer, callback)
+  } else if (header.type === 0x04) { // SETTINGS
+    this.onSettingsFrame(buffer, callback)
+  } else if (header.type === 0x05) {
+    callback(null, { type: 'NOOP' })
+  } else if (header.type === 0x06) { // PING
+    this.onPingFrame(buffer, callback)
+  } else if (header.type === 0x07) { // GOAWAY
+    this.onGoawayFrame(buffer, callback)
+  } else if (header.type === 0x08) { // HEADERS
+    this.onHeaderFrames(buffer, callback)
+  } else if (header.type === 0x09) { // WINDOW_UPDATE
+    this.onWindowUpdateFrame(buffer, callback)
+  } else if (header.type === 0xf000) { // X-FORWARDED
+    this.onXForwardedFrame(buffer, callback)
+  } else {
+    callback(null, { type: 'unknown: ' + header.type })
+  }
+}
+
+Parser.prototype._filterHeader = function _filterHeader (headers, name) {
+  var res = {}
+  var keys = Object.keys(headers)
+
+  for (var i = 0; i < keys.length; i++) {
+    var key = keys[i]
+    if (key !== name) {
+      res[key] = headers[key]
+    }
+  }
+
+  return res
+}
+
+Parser.prototype.onSynHeadFrame = function onSynHeadFrame (type,
+  flags,
+  body,
+  callback) {
+  var self = this
+  var stream = type === 0x01
+  var offset = stream ? 10 : this.version === 2 ? 6 : 4
+
+  if (!body.has(offset)) {
+    return callback(new Error('SynHead OOB'))
+  }
+
+  var head = body.clone(offset)
+  body.skip(offset)
+  this.parseKVs(body, function (err, headers) {
+    if (err) {
+      return callback(err)
+    }
+
+    if (stream &&
+        (!headers[':method'] || !headers[':path'])) {
+      return callback(new Error('Missing `:method` and/or `:path` header'))
+    }
+
+    var id = head.readUInt32BE() & 0x7fffffff
+
+    if (id === 0) {
+      return callback(self.error(constants.error.PROTOCOL_ERROR,
+        'Invalid stream id for HEADERS'))
+    }
+
+    var associated = stream ? head.readUInt32BE() & 0x7fffffff : 0
+    var priority = stream
+      ? head.readUInt8() >> 5
+      : utils.weightToPriority(constants.DEFAULT_WEIGHT)
+    var fin = (flags & constants.flags.FLAG_FIN) !== 0
+    var unidir = (flags & constants.flags.FLAG_UNIDIRECTIONAL) !== 0
+    var path = headers[':path']
+
+    var isPush = stream && associated !== 0
+
+    var weight = utils.priorityToWeight(priority)
+    var priorityInfo = {
+      weight: weight,
+      exclusive: false,
+      parent: 0
+    }
+
+    if (!isPush) {
+      callback(null, {
+        type: 'HEADERS',
+        id: id,
+        priority: priorityInfo,
+        fin: fin,
+        writable: !unidir,
+        headers: headers,
+        path: path
+      })
+      return
+    }
+
+    if (stream && !headers[':status']) {
+      return callback(new Error('Missing `:status` header'))
+    }
+
+    var filteredHeaders = self._filterHeader(headers, ':status')
+
+    callback(null, [ {
+      type: 'PUSH_PROMISE',
+      id: associated,
+      fin: false,
+      promisedId: id,
+      headers: filteredHeaders,
+      path: path
+    }, {
+      type: 'HEADERS',
+      id: id,
+      fin: fin,
+      priority: priorityInfo,
+      writable: true,
+      path: undefined,
+      headers: {
+        ':status': headers[':status']
+      }
+    }])
+  })
+}
+
+Parser.prototype.onHeaderFrames = function onHeaderFrames (body, callback) {
+  var offset = this.version === 2 ? 6 : 4
+  if (!body.has(offset)) {
+    return callback(new Error('HEADERS OOB'))
+  }
+
+  var streamId = body.readUInt32BE() & 0x7fffffff
+  if (this.version === 2) { body.skip(2) }
+
+  this.parseKVs(body, function (err, headers) {
+    if (err) { return callback(err) }
+
+    callback(null, {
+      type: 'HEADERS',
+      priority: {
+        parent: 0,
+        exclusive: false,
+        weight: constants.DEFAULT_WEIGHT
+      },
+      id: streamId,
+      fin: false,
+      writable: true,
+      path: undefined,
+      headers: headers
+    })
+  })
+}
+
+Parser.prototype.parseKVs = function parseKVs (buffer, callback) {
+  var self = this
+
+  this.decompress.write(buffer.toChunks(), function (err, chunks) {
+    if (err) {
+      return callback(err)
+    }
+
+    var buffer = new OffsetBuffer()
+    for (var i = 0; i < chunks.length; i++) {
+      buffer.push(chunks[i])
+    }
+
+    var size = self.version === 2 ? 2 : 4
+    if (!buffer.has(size)) { return callback(new Error('KV OOB')) }
+
+    var count = self.version === 2
+      ? buffer.readUInt16BE()
+      : buffer.readUInt32BE()
+
+    var headers = {}
+
+    function readString () {
+      if (!buffer.has(size)) { return null }
+      var len = self.version === 2
+        ? buffer.readUInt16BE()
+        : buffer.readUInt32BE()
+
+      if (!buffer.has(len)) { return null }
+
+      var value = buffer.take(len)
+      return value.toString()
+    }
+
+    while (count > 0) {
+      var key = readString()
+      var value = readString()
+
+      if (key === null || value === null) {
+        return callback(new Error('Headers OOB'))
+      }
+
+      if (self.version < 3) {
+        var isInternal = /^(method|version|url|host|scheme|status)$/.test(key)
+        if (key === 'url') {
+          key = 'path'
+        }
+        if (isInternal) {
+          key = ':' + key
+        }
+      }
+
+      // Compatibility with HTTP2
+      if (key === ':status') {
+        value = value.split(/ /g, 2)[0]
+      }
+
+      count--
+      if (key === ':host') {
+        key = ':authority'
+      }
+
+      // Skip version, not present in HTTP2
+      if (key === ':version') {
+        continue
+      }
+
+      value = value.split(/\0/g)
+      for (var j = 0; j < value.length; j++) {
+        utils.addHeaderLine(key, value[j], headers)
+      }
+    }
+
+    callback(null, headers)
+  })
+}
+
+Parser.prototype.onRSTFrame = function onRSTFrame (body, callback) {
+  if (!body.has(8)) { return callback(new Error('RST OOB')) }
+
+  var frame = {
+    type: 'RST',
+    id: body.readUInt32BE() & 0x7fffffff,
+    code: constants.errorByCode[body.readUInt32BE()]
+  }
+
+  if (frame.id === 0) {
+    return callback(this.error(constants.error.PROTOCOL_ERROR,
+      'Invalid stream id for RST'))
+  }
+
+  if (body.size !== 0) {
+    frame.extra = body.take(body.size)
+  }
+  callback(null, frame)
+}
+
+Parser.prototype.onSettingsFrame = function onSettingsFrame (body, callback) {
+  if (!body.has(4)) {
+    return callback(new Error('SETTINGS OOB'))
+  }
+
+  var settings = {}
+  var number = body.readUInt32BE()
+  var idMap = {
+    1: 'upload_bandwidth',
+    2: 'download_bandwidth',
+    3: 'round_trip_time',
+    4: 'max_concurrent_streams',
+    5: 'current_cwnd',
+    6: 'download_retrans_rate',
+    7: 'initial_window_size',
+    8: 'client_certificate_vector_size'
+  }
+
+  if (!body.has(number * 8)) {
+    return callback(new Error('SETTINGS OOB#2'))
+  }
+
+  for (var i = 0; i < number; i++) {
+    var id = this.version === 2
+      ? body.readUInt32LE()
+      : body.readUInt32BE()
+
+    var flags = (id >> 24) & 0xff
+    id = id & 0xffffff
+
+    // Skip persisted settings
+    if (flags & 0x2) { continue }
+
+    var name = idMap[id]
+
+    settings[name] = body.readUInt32BE()
+  }
+
+  callback(null, {
+    type: 'SETTINGS',
+    settings: settings
+  })
+}
+
+Parser.prototype.onPingFrame = function onPingFrame (body, callback) {
+  if (!body.has(4)) {
+    return callback(new Error('PING OOB'))
+  }
+
+  var isServer = this.isServer
+  var opaque = body.clone(body.size).take(body.size)
+  var id = body.readUInt32BE()
+  var ack = isServer ? (id % 2 === 0) : (id % 2 === 1)
+
+  callback(null, { type: 'PING', opaque: opaque, ack: ack })
+}
+
+Parser.prototype.onGoawayFrame = function onGoawayFrame (body, callback) {
+  if (!body.has(8)) {
+    return callback(new Error('GOAWAY OOB'))
+  }
+
+  callback(null, {
+    type: 'GOAWAY',
+    lastId: body.readUInt32BE() & 0x7fffffff,
+    code: constants.goawayByCode[body.readUInt32BE()]
+  })
+}
+
+Parser.prototype.onWindowUpdateFrame = function onWindowUpdateFrame (body,
+  callback) {
+  if (!body.has(8)) {
+    return callback(new Error('WINDOW_UPDATE OOB'))
+  }
+
+  callback(null, {
+    type: 'WINDOW_UPDATE',
+    id: body.readUInt32BE() & 0x7fffffff,
+    delta: body.readInt32BE()
+  })
+}
+
+Parser.prototype.onXForwardedFrame = function onXForwardedFrame (body,
+  callback) {
+  if (!body.has(4)) {
+    return callback(new Error('X_FORWARDED OOB'))
+  }
+
+  var len = body.readUInt32BE()
+  if (!body.has(len)) { return callback(new Error('X_FORWARDED host length OOB')) }
+
+  callback(null, {
+    type: 'X_FORWARDED_FOR',
+    host: body.take(len).toString()
+  })
+}

node_modules/spdy-transport/lib/spdy-transport/protocol/spdy/zlib-pool.js

@@ -0,0 +1,65 @@
+'use strict'
+
+var zlibpool = exports
+var zlib = require('zlib')
+
+var transport = require('../../../spdy-transport')
+
+// TODO(indutny): think about it, why has it always been Z_SYNC_FLUSH here.
+// It should be possible to manually flush stuff after the write instead
+function createDeflate (version, compression) {
+  var deflate = zlib.createDeflate({
+    dictionary: transport.protocol.spdy.dictionary[version],
+    flush: zlib.Z_SYNC_FLUSH,
+    windowBits: 11,
+    level: compression ? zlib.Z_DEFAULT_COMPRESSION : zlib.Z_NO_COMPRESSION
+  })
+
+  // For node.js v0.8
+  deflate._flush = zlib.Z_SYNC_FLUSH
+
+  return deflate
+}
+
+function createInflate (version) {
+  var inflate = zlib.createInflate({
+    dictionary: transport.protocol.spdy.dictionary[version],
+    flush: zlib.Z_SYNC_FLUSH
+  })
+
+  // For node.js v0.8
+  inflate._flush = zlib.Z_SYNC_FLUSH
+
+  return inflate
+}
+
+function Pool (compression) {
+  this.compression = compression
+  this.pool = {
+    2: [],
+    3: [],
+    3.1: []
+  }
+}
+
+zlibpool.create = function create (compression) {
+  return new Pool(compression)
+}
+
+Pool.prototype.get = function get (version) {
+  if (this.pool[version].length > 0) {
+    return this.pool[version].pop()
+  } else {
+    var id = version
+
+    return {
+      version: version,
+      compress: createDeflate(id, this.compression),
+      decompress: createInflate(id)
+    }
+  }
+}
+
+Pool.prototype.put = function put (pair) {
+  this.pool[pair.version].push(pair)
+}

node_modules/spdy-transport/lib/spdy-transport/utils.js

@@ -0,0 +1,196 @@
+'use strict'
+
+var util = require('util')
+var isNode = require('detect-node')
+
+// Node.js 0.8, 0.10 and 0.12 support
+Object.assign = (process.versions.modules >= 46 || !isNode)
+  ? Object.assign // eslint-disable-next-line
+  : util._extend
+
+function QueueItem () {
+  this.prev = null
+  this.next = null
+}
+exports.QueueItem = QueueItem
+
+function Queue () {
+  QueueItem.call(this)
+
+  this.prev = this
+  this.next = this
+}
+util.inherits(Queue, QueueItem)
+exports.Queue = Queue
+
+Queue.prototype.insertTail = function insertTail (item) {
+  item.prev = this.prev
+  item.next = this
+  item.prev.next = item
+  item.next.prev = item
+}
+
+Queue.prototype.remove = function remove (item) {
+  var next = item.next
+  var prev = item.prev
+
+  item.next = item
+  item.prev = item
+  next.prev = prev
+  prev.next = next
+}
+
+Queue.prototype.head = function head () {
+  return this.next
+}
+
+Queue.prototype.tail = function tail () {
+  return this.prev
+}
+
+Queue.prototype.isEmpty = function isEmpty () {
+  return this.next === this
+}
+
+Queue.prototype.isRoot = function isRoot (item) {
+  return this === item
+}
+
+function LockStream (stream) {
+  this.locked = false
+  this.queue = []
+  this.stream = stream
+}
+exports.LockStream = LockStream
+
+LockStream.prototype.write = function write (chunks, callback) {
+  var self = this
+
+  // Do not let it interleave
+  if (this.locked) {
+    this.queue.push(function () {
+      return self.write(chunks, callback)
+    })
+    return
+  }
+
+  this.locked = true
+
+  function done (err, chunks) {
+    self.stream.removeListener('error', done)
+
+    self.locked = false
+    if (self.queue.length > 0) { self.queue.shift()() }
+    callback(err, chunks)
+  }
+
+  this.stream.on('error', done)
+
+  // Accumulate all output data
+  var output = []
+  function onData (chunk) {
+    output.push(chunk)
+  }
+  this.stream.on('data', onData)
+
+  function next (err) {
+    self.stream.removeListener('data', onData)
+    if (err) {
+      return done(err)
+    }
+
+    done(null, output)
+  }
+
+  for (var i = 0; i < chunks.length - 1; i++) { this.stream.write(chunks[i]) }
+
+  if (chunks.length > 0) {
+    this.stream.write(chunks[i], next)
+  } else { process.nextTick(next) }
+
+  if (this.stream.execute) {
+    this.stream.execute(function (err) {
+      if (err) { return done(err) }
+    })
+  }
+}
+
+// Just finds the place in array to insert
+function binaryLookup (list, item, compare) {
+  var start = 0
+  var end = list.length
+
+  while (start < end) {
+    var pos = (start + end) >> 1
+    var cmp = compare(item, list[pos])
+
+    if (cmp === 0) {
+      start = pos
+      end = pos
+      break
+    } else if (cmp < 0) {
+      end = pos
+    } else {
+      start = pos + 1
+    }
+  }
+
+  return start
+}
+exports.binaryLookup = binaryLookup
+
+function binaryInsert (list, item, compare) {
+  var index = binaryLookup(list, item, compare)
+
+  list.splice(index, 0, item)
+}
+exports.binaryInsert = binaryInsert
+
+function binarySearch (list, item, compare) {
+  var index = binaryLookup(list, item, compare)
+
+  if (index >= list.length) {
+    return -1
+  }
+
+  if (compare(item, list[index]) === 0) {
+    return index
+  }
+
+  return -1
+}
+exports.binarySearch = binarySearch
+
+function Timeout (object) {
+  this.delay = 0
+  this.timer = null
+  this.object = object
+}
+exports.Timeout = Timeout
+
+Timeout.prototype.set = function set (delay, callback) {
+  this.delay = delay
+  this.reset()
+  if (!callback) { return }
+
+  if (this.delay === 0) {
+    this.object.removeListener('timeout', callback)
+  } else {
+    this.object.once('timeout', callback)
+  }
+}
+
+Timeout.prototype.reset = function reset () {
+  if (this.timer !== null) {
+    clearTimeout(this.timer)
+    this.timer = null
+  }
+
+  if (this.delay === 0) { return }
+
+  var self = this
+  this.timer = setTimeout(function () {
+    self.timer = null
+    self.object.emit('timeout')
+  }, this.delay)
+}

node_modules/spdy-transport/lib/spdy-transport/window.js

@@ -0,0 +1,174 @@
+'use strict'
+
+var util = require('util')
+var EventEmitter = require('events').EventEmitter
+var debug = {
+  server: require('debug')('spdy:window:server'),
+  client: require('debug')('spdy:window:client')
+}
+
+function Side (window, name, options) {
+  EventEmitter.call(this)
+
+  this.name = name
+  this.window = window
+  this.current = options.size
+  this.max = options.size
+  this.limit = options.max
+  this.lowWaterMark = options.lowWaterMark === undefined
+    ? this.max / 2
+    : options.lowWaterMark
+
+  this._refilling = false
+  this._refillQueue = []
+}
+util.inherits(Side, EventEmitter)
+
+Side.prototype.setMax = function setMax (max) {
+  this.window.debug('id=%d side=%s setMax=%d',
+    this.window.id,
+    this.name,
+    max)
+  this.max = max
+  this.lowWaterMark = this.max / 2
+}
+
+Side.prototype.updateMax = function updateMax (max) {
+  var delta = max - this.max
+  this.window.debug('id=%d side=%s updateMax=%d delta=%d',
+    this.window.id,
+    this.name,
+    max,
+    delta)
+
+  this.max = max
+  this.lowWaterMark = max / 2
+
+  this.update(delta)
+}
+
+Side.prototype.setLowWaterMark = function setLowWaterMark (lwm) {
+  this.lowWaterMark = lwm
+}
+
+Side.prototype.update = function update (size, callback) {
+  // Not enough space for the update, wait for refill
+  if (size <= 0 && callback && this.isEmpty()) {
+    this.window.debug('id=%d side=%s wait for refill=%d [%d/%d]',
+      this.window.id,
+      this.name,
+      -size,
+      this.current,
+      this.max)
+    this._refillQueue.push({
+      size: size,
+      callback: callback
+    })
+    return
+  }
+
+  this.current += size
+
+  if (this.current > this.limit) {
+    this.emit('overflow')
+    return
+  }
+
+  this.window.debug('id=%d side=%s update by=%d [%d/%d]',
+    this.window.id,
+    this.name,
+    size,
+    this.current,
+    this.max)
+
+  // Time to send WINDOW_UPDATE
+  if (size < 0 && this.isDraining()) {
+    this.window.debug('id=%d side=%s drained', this.window.id, this.name)
+    this.emit('drain')
+  }
+
+  // Time to write
+  if (size > 0 && this.current > 0 && this.current <= size) {
+    this.window.debug('id=%d side=%s full', this.window.id, this.name)
+    this.emit('full')
+  }
+
+  this._processRefillQueue()
+
+  if (callback) { process.nextTick(callback) }
+}
+
+Side.prototype.getCurrent = function getCurrent () {
+  return this.current
+}
+
+Side.prototype.getMax = function getMax () {
+  return this.max
+}
+
+Side.prototype.getDelta = function getDelta () {
+  return this.max - this.current
+}
+
+Side.prototype.isDraining = function isDraining () {
+  return this.current <= this.lowWaterMark
+}
+
+Side.prototype.isEmpty = function isEmpty () {
+  return this.current <= 0
+}
+
+// Private
+
+Side.prototype._processRefillQueue = function _processRefillQueue () {
+  // Prevent recursion
+  if (this._refilling) {
+    return
+  }
+  this._refilling = true
+
+  while (this._refillQueue.length > 0) {
+    var item = this._refillQueue[0]
+
+    if (this.isEmpty()) {
+      break
+    }
+
+    this.window.debug('id=%d side=%s refilled for size=%d',
+      this.window.id,
+      this.name,
+      -item.size)
+
+    this._refillQueue.shift()
+    this.update(item.size, item.callback)
+  }
+
+  this._refilling = false
+}
+
+function Window (options) {
+  this.id = options.id
+  this.isServer = options.isServer
+  this.debug = this.isServer ? debug.server : debug.client
+
+  this.recv = new Side(this, 'recv', options.recv)
+  this.send = new Side(this, 'send', options.send)
+}
+module.exports = Window
+
+Window.prototype.clone = function clone (id) {
+  return new Window({
+    id: id,
+    isServer: this.isServer,
+    recv: {
+      size: this.recv.max,
+      max: this.recv.limit,
+      lowWaterMark: this.recv.lowWaterMark
+    },
+    send: {
+      size: this.send.max,
+      max: this.send.limit,
+      lowWaterMark: this.send.lowWaterMark
+    }
+  })
+}