first commit

node_modules/spdy-transport/.travis.yml

@@ -0,0 +1,14 @@
+sudo: false
+
+language: node_js
+
+node_js:
+  - "6"
+  - "8"
+  - "10"
+  - "stable"
+
+script:
+  - npm run lint
+  - npm test
+  - npm run coverage

node_modules/spdy-transport/README.md

@@ -0,0 +1,76 @@
+# spdy-transport
+
+[![Build Status](https://travis-ci.org/spdy-http2/spdy-transport.svg?branch=master)](http://travis-ci.org/spdy-http2/spdy-transport)
+[![NPM version](https://badge.fury.io/js/spdy-transport.svg)](http://badge.fury.io/js/spdy-transport)
+[![dependencies Status](https://david-dm.org/spdy-http2/spdy-transport/status.svg?style=flat-square)](https://david-dm.org/spdy-http2/spdy-transport)
+[![Standard - JavaScript Style Guide](https://img.shields.io/badge/code_style-standard-brightgreen.svg?style=flat-square)](http://standardjs.com/)
+[![Waffle](https://img.shields.io/badge/track-waffle-blue.svg?style=flat-square)](https://waffle.io/spdy-http2/node-spdy)
+
+> SPDY/HTTP2 generic transport implementation.
+
+## Usage
+
+```javascript
+var transport = require('spdy-transport');
+
+// NOTE: socket is some stream or net.Socket instance, may be an argument
+// of `net.createServer`'s connection handler.
+
+var server = transport.connection.create(socket, {
+  protocol: 'http2',
+  isServer: true
+});
+
+server.on('stream', function(stream) {
+  console.log(stream.method, stream.path, stream.headers);
+  stream.respond(200, {
+    header: 'value'
+  });
+
+  stream.on('readable', function() {
+    var chunk = stream.read();
+    if (!chunk)
+      return;
+
+    console.log(chunk);
+  });
+
+  stream.on('end', function() {
+    console.log('end');
+  });
+
+  // And other node.js Stream APIs
+  // ...
+});
+```
+
+## LICENSE
+
+This software is licensed under the MIT License.
+
+Copyright Fedor Indutny, 2015.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to permit
+persons to whom the Software is furnished to do so, subject to the
+following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+[0]: http://json.org/
+[1]: http://github.com/indutny/bud-backend
+[2]: https://github.com/nodejs/io.js
+[3]: https://github.com/libuv/libuv
+[4]: http://openssl.org/

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/connection.js

@@ -0,0 +1,845 @@
+'use strict'
+
+var util = require('util')
+var transport = require('../spdy-transport')
+
+var debug = {
+  server: require('debug')('spdy:connection:server'),
+  client: require('debug')('spdy:connection:client')
+}
+var EventEmitter = require('events').EventEmitter
+
+var Stream = transport.Stream
+
+function Connection (socket, options) {
+  EventEmitter.call(this)
+
+  var state = {}
+  this._spdyState = state
+
+  // NOTE: There's a big trick here. Connection is used as a `this` argument
+  // to the wrapped `connection` event listener.
+  // socket end doesn't necessarly mean connection drop
+  this.httpAllowHalfOpen = true
+
+  state.timeout = new transport.utils.Timeout(this)
+
+  // Protocol info
+  state.protocol = transport.protocol[options.protocol]
+  state.version = null
+  state.constants = state.protocol.constants
+  state.pair = null
+  state.isServer = options.isServer
+
+  // Root of priority tree (i.e. stream id = 0)
+  state.priorityRoot = new transport.Priority({
+    defaultWeight: state.constants.DEFAULT_WEIGHT,
+    maxCount: transport.protocol.base.constants.MAX_PRIORITY_STREAMS
+  })
+
+  // Defaults
+  state.maxStreams = options.maxStreams ||
+                     state.constants.MAX_CONCURRENT_STREAMS
+
+  state.autoSpdy31 = options.protocol.name !== 'h2' && options.autoSpdy31
+  state.acceptPush = options.acceptPush === undefined
+    ? !state.isServer
+    : options.acceptPush
+
+  if (options.maxChunk === false) { state.maxChunk = Infinity } else if (options.maxChunk === undefined) { state.maxChunk = transport.protocol.base.constants.DEFAULT_MAX_CHUNK } else {
+    state.maxChunk = options.maxChunk
+  }
+
+  // Connection-level flow control
+  var windowSize = options.windowSize || 1 << 20
+  state.window = new transport.Window({
+    id: 0,
+    isServer: state.isServer,
+    recv: {
+      size: state.constants.DEFAULT_WINDOW,
+      max: state.constants.MAX_INITIAL_WINDOW_SIZE
+    },
+    send: {
+      size: state.constants.DEFAULT_WINDOW,
+      max: state.constants.MAX_INITIAL_WINDOW_SIZE
+    }
+  })
+
+  // It starts with DEFAULT_WINDOW, update must be sent to change it on client
+  state.window.recv.setMax(windowSize)
+
+  // Boilerplate for Stream constructor
+  state.streamWindow = new transport.Window({
+    id: -1,
+    isServer: state.isServer,
+    recv: {
+      size: windowSize,
+      max: state.constants.MAX_INITIAL_WINDOW_SIZE
+    },
+    send: {
+      size: state.constants.DEFAULT_WINDOW,
+      max: state.constants.MAX_INITIAL_WINDOW_SIZE
+    }
+  })
+
+  // Various state info
+  state.pool = state.protocol.compressionPool.create(options.headerCompression)
+  state.counters = {
+    push: 0,
+    stream: 0
+  }
+
+  // Init streams list
+  state.stream = {
+    map: {},
+    count: 0,
+    nextId: state.isServer ? 2 : 1,
+    lastId: {
+      both: 0,
+      received: 0
+    }
+  }
+  state.ping = {
+    nextId: state.isServer ? 2 : 1,
+    map: {}
+  }
+  state.goaway = false
+
+  // Debug
+  state.debug = state.isServer ? debug.server : debug.client
+
+  // X-Forwarded feature
+  state.xForward = null
+
+  // Create parser and hole for framer
+  state.parser = state.protocol.parser.create({
+    // NOTE: needed to distinguish ping from ping ACK in SPDY
+    isServer: state.isServer,
+    window: state.window
+  })
+  state.framer = state.protocol.framer.create({
+    window: state.window,
+    timeout: state.timeout
+  })
+
+  // SPDY has PUSH enabled on servers
+  if (state.protocol.name === 'spdy') {
+    state.framer.enablePush(state.isServer)
+  }
+
+  if (!state.isServer) { state.parser.skipPreface() }
+
+  this.socket = socket
+
+  this._init()
+}
+util.inherits(Connection, EventEmitter)
+exports.Connection = Connection
+
+Connection.create = function create (socket, options) {
+  return new Connection(socket, options)
+}
+
+Connection.prototype._init = function init () {
+  var self = this
+  var state = this._spdyState
+  var pool = state.pool
+
+  // Initialize session window
+  state.window.recv.on('drain', function () {
+    self._onSessionWindowDrain()
+  })
+
+  // Initialize parser
+  state.parser.on('data', function (frame) {
+    self._handleFrame(frame)
+  })
+  state.parser.once('version', function (version) {
+    self._onVersion(version)
+  })
+
+  // Propagate parser errors
+  state.parser.on('error', function (err) {
+    self._onParserError(err)
+  })
+
+  // Propagate framer errors
+  state.framer.on('error', function (err) {
+    self.emit('error', err)
+  })
+
+  this.socket.pipe(state.parser)
+  state.framer.pipe(this.socket)
+
+  // Allow high-level api to catch socket errors
+  this.socket.on('error', function onSocketError (e) {
+    self.emit('error', e)
+  })
+
+  this.socket.once('close', function onclose (hadError) {
+    var err
+    if (hadError) {
+      err = new Error('socket hang up')
+      err.code = 'ECONNRESET'
+    }
+
+    self.destroyStreams(err)
+    self.emit('close')
+
+    if (state.pair) {
+      pool.put(state.pair)
+    }
+
+    state.framer.resume()
+  })
+
+  // Reset timeout on close
+  this.once('close', function () {
+    self.setTimeout(0)
+  })
+
+  function _onWindowOverflow () {
+    self._onWindowOverflow()
+  }
+
+  state.window.recv.on('overflow', _onWindowOverflow)
+  state.window.send.on('overflow', _onWindowOverflow)
+
+  // Do not allow half-open connections
+  this.socket.allowHalfOpen = false
+}
+
+Connection.prototype._onVersion = function _onVersion (version) {
+  var state = this._spdyState
+  var prev = state.version
+  var parser = state.parser
+  var framer = state.framer
+  var pool = state.pool
+
+  state.version = version
+  state.debug('id=0 version=%d', version)
+
+  // Ignore transition to 3.1
+  if (!prev) {
+    state.pair = pool.get(version)
+    parser.setCompression(state.pair)
+    framer.setCompression(state.pair)
+  }
+  framer.setVersion(version)
+
+  if (!state.isServer) {
+    framer.prefaceFrame()
+    if (state.xForward !== null) {
+      framer.xForwardedFor({ host: state.xForward })
+    }
+  }
+
+  // Send preface+settings frame (once)
+  framer.settingsFrame({
+    max_header_list_size: state.constants.DEFAULT_MAX_HEADER_LIST_SIZE,
+    max_concurrent_streams: state.maxStreams,
+    enable_push: state.acceptPush ? 1 : 0,
+    initial_window_size: state.window.recv.max
+  })
+
+  // Update session window
+  if (state.version >= 3.1 || (state.isServer && state.autoSpdy31)) { this._onSessionWindowDrain() }
+
+  this.emit('version', version)
+}
+
+Connection.prototype._onParserError = function _onParserError (err) {
+  var state = this._spdyState
+
+  // Prevent further errors
+  state.parser.kill()
+
+  // Send GOAWAY
+  if (err instanceof transport.protocol.base.utils.ProtocolError) {
+    this._goaway({
+      lastId: state.stream.lastId.both,
+      code: err.code,
+      extra: err.message,
+      send: true
+    })
+  }
+
+  this.emit('error', err)
+}
+
+Connection.prototype._handleFrame = function _handleFrame (frame) {
+  var state = this._spdyState
+
+  state.debug('id=0 frame', frame)
+  state.timeout.reset()
+
+  // For testing purposes
+  this.emit('frame', frame)
+
+  var stream
+
+  // Session window update
+  if (frame.type === 'WINDOW_UPDATE' && frame.id === 0) {
+    if (state.version < 3.1 && state.autoSpdy31) {
+      state.debug('id=0 switch version to 3.1')
+      state.version = 3.1
+      this.emit('version', 3.1)
+    }
+    state.window.send.update(frame.delta)
+    return
+  }
+
+  if (state.isServer && frame.type === 'PUSH_PROMISE') {
+    state.debug('id=0 server PUSH_PROMISE')
+    this._goaway({
+      lastId: state.stream.lastId.both,
+      code: 'PROTOCOL_ERROR',
+      send: true
+    })
+    return
+  }
+
+  if (!stream && frame.id !== undefined) {
+    // Load created one
+    stream = state.stream.map[frame.id]
+
+    // Fail if not found
+    if (!stream &&
+        frame.type !== 'HEADERS' &&
+        frame.type !== 'PRIORITY' &&
+        frame.type !== 'RST') {
+      // Other side should destroy the stream upon receiving GOAWAY
+      if (this._isGoaway(frame.id)) { return }
+
+      state.debug('id=0 stream=%d not found', frame.id)
+      state.framer.rstFrame({ id: frame.id, code: 'INVALID_STREAM' })
+      return
+    }
+  }
+
+  // Create new stream
+  if (!stream && frame.type === 'HEADERS') {
+    this._handleHeaders(frame)
+    return
+  }
+
+  if (stream) {
+    stream._handleFrame(frame)
+  } else if (frame.type === 'SETTINGS') {
+    this._handleSettings(frame.settings)
+  } else if (frame.type === 'ACK_SETTINGS') {
+    // TODO(indutny): handle it one day
+  } else if (frame.type === 'PING') {
+    this._handlePing(frame)
+  } else if (frame.type === 'GOAWAY') {
+    this._handleGoaway(frame)
+  } else if (frame.type === 'X_FORWARDED_FOR') {
+    // Set X-Forwarded-For only once
+    if (state.xForward === null) {
+      state.xForward = frame.host
+    }
+  } else if (frame.type === 'PRIORITY') {
+    // TODO(indutny): handle this
+  } else {
+    state.debug('id=0 unknown frame type: %s', frame.type)
+  }
+}
+
+Connection.prototype._onWindowOverflow = function _onWindowOverflow () {
+  var state = this._spdyState
+  state.debug('id=0 window overflow')
+  this._goaway({
+    lastId: state.stream.lastId.both,
+    code: 'FLOW_CONTROL_ERROR',
+    send: true
+  })
+}
+
+Connection.prototype._isGoaway = function _isGoaway (id) {
+  var state = this._spdyState
+  if (state.goaway !== false && state.goaway < id) { return true }
+  return false
+}
+
+Connection.prototype._getId = function _getId () {
+  var state = this._spdyState
+
+  var id = state.stream.nextId
+  state.stream.nextId += 2
+  return id
+}
+
+Connection.prototype._createStream = function _createStream (uri) {
+  var state = this._spdyState
+  var id = uri.id
+  if (id === undefined) { id = this._getId() }
+
+  var isGoaway = this._isGoaway(id)
+
+  if (uri.push && !state.acceptPush) {
+    state.debug('id=0 push disabled promisedId=%d', id)
+
+    // Fatal error
+    this._goaway({
+      lastId: state.stream.lastId.both,
+      code: 'PROTOCOL_ERROR',
+      send: true
+    })
+    isGoaway = true
+  }
+
+  var stream = new Stream(this, {
+    id: id,
+    request: uri.request !== false,
+    method: uri.method,
+    path: uri.path,
+    host: uri.host,
+    priority: uri.priority,
+    headers: uri.headers,
+    parent: uri.parent,
+    readable: !isGoaway && uri.readable,
+    writable: !isGoaway && uri.writable
+  })
+  var self = this
+
+  // Just an empty stream for API consistency
+  if (isGoaway) {
+    return stream
+  }
+
+  state.stream.lastId.both = Math.max(state.stream.lastId.both, id)
+
+  state.debug('id=0 add stream=%d', stream.id)
+  state.stream.map[stream.id] = stream
+  state.stream.count++
+  state.counters.stream++
+  if (stream.parent !== null) {
+    state.counters.push++
+  }
+
+  stream.once('close', function () {
+    self._removeStream(stream)
+  })
+
+  return stream
+}
+
+Connection.prototype._handleHeaders = function _handleHeaders (frame) {
+  var state = this._spdyState
+
+  // Must be HEADERS frame after stream close
+  if (frame.id <= state.stream.lastId.received) { return }
+
+  // Someone is using our ids!
+  if ((frame.id + state.stream.nextId) % 2 === 0) {
+    state.framer.rstFrame({ id: frame.id, code: 'PROTOCOL_ERROR' })
+    return
+  }
+
+  var stream = this._createStream({
+    id: frame.id,
+    request: false,
+    method: frame.headers[':method'],
+    path: frame.headers[':path'],
+    host: frame.headers[':authority'],
+    priority: frame.priority,
+    headers: frame.headers,
+    writable: frame.writable
+  })
+
+  // GOAWAY
+  if (this._isGoaway(stream.id)) {
+    return
+  }
+
+  state.stream.lastId.received = Math.max(
+    state.stream.lastId.received,
+    stream.id
+  )
+
+  // TODO(indutny) handle stream limit
+  if (!this.emit('stream', stream)) {
+    // No listeners was set - abort the stream
+    stream.abort()
+    return
+  }
+
+  // Create fake frame to simulate end of the data
+  if (frame.fin) {
+    stream._handleFrame({ type: 'FIN', fin: true })
+  }
+
+  return stream
+}
+
+Connection.prototype._onSessionWindowDrain = function _onSessionWindowDrain () {
+  var state = this._spdyState
+  if (state.version < 3.1 && !(state.isServer && state.autoSpdy31)) {
+    return
+  }
+
+  var delta = state.window.recv.getDelta()
+  if (delta === 0) {
+    return
+  }
+
+  state.debug('id=0 session window drain, update by %d', delta)
+
+  state.framer.windowUpdateFrame({
+    id: 0,
+    delta: delta
+  })
+  state.window.recv.update(delta)
+}
+
+Connection.prototype.start = function start (version) {
+  this._spdyState.parser.setVersion(version)
+}
+
+// Mostly for testing
+Connection.prototype.getVersion = function getVersion () {
+  return this._spdyState.version
+}
+
+Connection.prototype._handleSettings = function _handleSettings (settings) {
+  var state = this._spdyState
+
+  state.framer.ackSettingsFrame()
+
+  this._setDefaultWindow(settings)
+  if (settings.max_frame_size) { state.framer.setMaxFrameSize(settings.max_frame_size) }
+
+  // TODO(indutny): handle max_header_list_size
+  if (settings.header_table_size) {
+    try {
+      state.pair.compress.updateTableSize(settings.header_table_size)
+    } catch (e) {
+      this._goaway({
+        lastId: 0,
+        code: 'PROTOCOL_ERROR',
+        send: true
+      })
+      return
+    }
+  }
+
+  // HTTP2 clients needs to enable PUSH streams explicitly
+  if (state.protocol.name !== 'spdy') {
+    if (settings.enable_push === undefined) {
+      state.framer.enablePush(state.isServer)
+    } else {
+      state.framer.enablePush(settings.enable_push === 1)
+    }
+  }
+
+  // TODO(indutny): handle max_concurrent_streams
+}
+
+Connection.prototype._setDefaultWindow = function _setDefaultWindow (settings) {
+  if (settings.initial_window_size === undefined) {
+    return
+  }
+
+  var state = this._spdyState
+
+  // Update defaults
+  var window = state.streamWindow
+  window.send.setMax(settings.initial_window_size)
+
+  // Update existing streams
+  Object.keys(state.stream.map).forEach(function (id) {
+    var stream = state.stream.map[id]
+    var window = stream._spdyState.window
+
+    window.send.updateMax(settings.initial_window_size)
+  })
+}
+
+Connection.prototype._handlePing = function handlePing (frame) {
+  var self = this
+  var state = this._spdyState
+
+  // Handle incoming PING
+  if (!frame.ack) {
+    state.framer.pingFrame({
+      opaque: frame.opaque,
+      ack: true
+    })
+
+    self.emit('ping', frame.opaque)
+    return
+  }
+
+  // Handle reply PING
+  var hex = frame.opaque.toString('hex')
+  if (!state.ping.map[hex]) {
+    return
+  }
+  var ping = state.ping.map[hex]
+  delete state.ping.map[hex]
+
+  if (ping.cb) {
+    ping.cb(null)
+  }
+}
+
+Connection.prototype._handleGoaway = function handleGoaway (frame) {
+  this._goaway({
+    lastId: frame.lastId,
+    code: frame.code,
+    send: false
+  })
+}
+
+Connection.prototype.ping = function ping (callback) {
+  var state = this._spdyState
+
+  // HTTP2 is using 8-byte opaque
+  var opaque = Buffer.alloc(state.constants.PING_OPAQUE_SIZE)
+  opaque.fill(0)
+  opaque.writeUInt32BE(state.ping.nextId, opaque.length - 4)
+  state.ping.nextId += 2
+
+  state.ping.map[opaque.toString('hex')] = { cb: callback }
+  state.framer.pingFrame({
+    opaque: opaque,
+    ack: false
+  })
+}
+
+Connection.prototype.getCounter = function getCounter (name) {
+  return this._spdyState.counters[name]
+}
+
+Connection.prototype.reserveStream = function reserveStream (uri, callback) {
+  var stream = this._createStream(uri)
+
+  // GOAWAY
+  if (this._isGoaway(stream.id)) {
+    var err = new Error('Can\'t send request after GOAWAY')
+    process.nextTick(function () {
+      if (callback) { callback(err) } else {
+        stream.emit('error', err)
+      }
+    })
+    return stream
+  }
+
+  if (callback) {
+    process.nextTick(function () {
+      callback(null, stream)
+    })
+  }
+
+  return stream
+}
+
+Connection.prototype.request = function request (uri, callback) {
+  var stream = this.reserveStream(uri, function (err) {
+    if (err) {
+      if (callback) {
+        callback(err)
+      } else {
+        stream.emit('error', err)
+      }
+      return
+    }
+
+    if (stream._wasSent()) {
+      if (callback) {
+        callback(null, stream)
+      }
+      return
+    }
+
+    stream.send(function (err) {
+      if (err) {
+        if (callback) { return callback(err) } else { return stream.emit('error', err) }
+      }
+
+      if (callback) {
+        callback(null, stream)
+      }
+    })
+  })
+
+  return stream
+}
+
+Connection.prototype._removeStream = function _removeStream (stream) {
+  var state = this._spdyState
+
+  state.debug('id=0 remove stream=%d', stream.id)
+  delete state.stream.map[stream.id]
+  state.stream.count--
+
+  if (state.stream.count === 0) {
+    this.emit('_streamDrain')
+  }
+}
+
+Connection.prototype._goaway = function _goaway (params) {
+  var state = this._spdyState
+  var self = this
+
+  state.goaway = params.lastId
+  state.debug('id=0 goaway from=%d', state.goaway)
+
+  Object.keys(state.stream.map).forEach(function (id) {
+    var stream = state.stream.map[id]
+
+    // Abort every stream started after GOAWAY
+    if (stream.id <= params.lastId) {
+      return
+    }
+
+    stream.abort()
+    stream.emit('error', new Error('New stream after GOAWAY'))
+  })
+
+  function finish () {
+    // Destroy socket if there are no streams
+    if (state.stream.count === 0 || params.code !== 'OK') {
+      // No further frames should be processed
+      state.parser.kill()
+
+      process.nextTick(function () {
+        var err = new Error('Fatal error: ' + params.code)
+        self._onStreamDrain(err)
+      })
+      return
+    }
+
+    self.on('_streamDrain', self._onStreamDrain)
+  }
+
+  if (params.send) {
+    // Make sure that GOAWAY frame is sent before dumping framer
+    state.framer.goawayFrame({
+      lastId: params.lastId,
+      code: params.code,
+      extra: params.extra
+    }, finish)
+  } else {
+    finish()
+  }
+}
+
+Connection.prototype._onStreamDrain = function _onStreamDrain (error) {
+  var state = this._spdyState
+
+  state.debug('id=0 _onStreamDrain')
+
+  state.framer.dump()
+  state.framer.unpipe(this.socket)
+  state.framer.resume()
+
+  if (this.socket.destroySoon) {
+    this.socket.destroySoon()
+  }
+  this.emit('close', error)
+}
+
+Connection.prototype.end = function end (callback) {
+  var state = this._spdyState
+
+  if (callback) {
+    this.once('close', callback)
+  }
+  this._goaway({
+    lastId: state.stream.lastId.both,
+    code: 'OK',
+    send: true
+  })
+}
+
+Connection.prototype.destroyStreams = function destroyStreams (err) {
+  var state = this._spdyState
+  Object.keys(state.stream.map).forEach(function (id) {
+    var stream = state.stream.map[id]
+
+    stream.destroy()
+    if (err) {
+      stream.emit('error', err)
+    }
+  })
+}
+
+Connection.prototype.isServer = function isServer () {
+  return this._spdyState.isServer
+}
+
+Connection.prototype.getXForwardedFor = function getXForwardFor () {
+  return this._spdyState.xForward
+}
+
+Connection.prototype.sendXForwardedFor = function sendXForwardedFor (host) {
+  var state = this._spdyState
+  if (state.version !== null) {
+    state.framer.xForwardedFor({ host: host })
+  } else {
+    state.xForward = host
+  }
+}
+
+Connection.prototype.pushPromise = function pushPromise (parent, uri, callback) {
+  var state = this._spdyState
+
+  var stream = this._createStream({
+    request: false,
+    parent: parent,
+    method: uri.method,
+    path: uri.path,
+    host: uri.host,
+    priority: uri.priority,
+    headers: uri.headers,
+    readable: false
+  })
+
+  var err
+
+  // TODO(indutny): deduplicate this logic somehow
+  if (this._isGoaway(stream.id)) {
+    err = new Error('Can\'t send PUSH_PROMISE after GOAWAY')
+
+    process.nextTick(function () {
+      if (callback) {
+        callback(err)
+      } else {
+        stream.emit('error', err)
+      }
+    })
+    return stream
+  }
+
+  if (uri.push && !state.acceptPush) {
+    err = new Error(
+      'Can\'t send PUSH_PROMISE, other side won\'t accept it')
+    process.nextTick(function () {
+      if (callback) { callback(err) } else {
+        stream.emit('error', err)
+      }
+    })
+    return stream
+  }
+
+  stream._sendPush(uri.status, uri.response, function (err) {
+    if (!callback) {
+      if (err) {
+        stream.emit('error', err)
+      }
+      return
+    }
+
+    if (err) { return callback(err) }
+    callback(null, stream)
+  })
+
+  return stream
+}
+
+Connection.prototype.setTimeout = function setTimeout (delay, callback) {
+  var state = this._spdyState
+
+  state.timeout.set(delay, callback)
+}

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/framer.js

@@ -0,0 +1,542 @@
+'use strict'
+
+var transport = require('../../../spdy-transport')
+var base = transport.protocol.base
+var constants = require('./').constants
+
+var assert = require('assert')
+var util = require('util')
+var WriteBuffer = require('wbuf')
+var OffsetBuffer = require('obuf')
+var debug = require('debug')('spdy:framer')
+var debugExtra = require('debug')('spdy:framer:extra')
+
+function Framer (options) {
+  base.Framer.call(this, options)
+
+  this.maxFrameSize = constants.INITIAL_MAX_FRAME_SIZE
+}
+util.inherits(Framer, base.Framer)
+module.exports = Framer
+
+Framer.create = function create (options) {
+  return new Framer(options)
+}
+
+Framer.prototype.setMaxFrameSize = function setMaxFrameSize (size) {
+  this.maxFrameSize = size
+}
+
+Framer.prototype._frame = function _frame (frame, body, callback) {
+  debug('id=%d type=%s', frame.id, frame.type)
+
+  var buffer = new WriteBuffer()
+
+  buffer.reserve(constants.FRAME_HEADER_SIZE)
+  var len = buffer.skip(3)
+  buffer.writeUInt8(constants.frameType[frame.type])
+  buffer.writeUInt8(frame.flags)
+  buffer.writeUInt32BE(frame.id & 0x7fffffff)
+
+  body(buffer)
+
+  var frameSize = buffer.size - constants.FRAME_HEADER_SIZE
+  len.writeUInt24BE(frameSize)
+
+  var chunks = buffer.render()
+  var toWrite = {
+    stream: frame.id,
+    priority: frame.priority === undefined ? false : frame.priority,
+    chunks: chunks,
+    callback: callback
+  }
+
+  if (this.window && frame.type === 'DATA') {
+    var self = this
+    this._resetTimeout()
+    this.window.send.update(-frameSize, function () {
+      self._resetTimeout()
+      self.schedule(toWrite)
+    })
+  } else {
+    this._resetTimeout()
+    this.schedule(toWrite)
+  }
+
+  return chunks
+}
+
+Framer.prototype._split = function _split (frame) {
+  var buf = new OffsetBuffer()
+  for (var i = 0; i < frame.chunks.length; i++) { buf.push(frame.chunks[i]) }
+
+  var frames = []
+  while (!buf.isEmpty()) {
+    // First frame may have reserved bytes in it
+    var size = this.maxFrameSize
+    if (frames.length === 0) {
+      size -= frame.reserve
+    }
+    size = Math.min(size, buf.size)
+
+    var frameBuf = buf.clone(size)
+    buf.skip(size)
+
+    frames.push({
+      size: frameBuf.size,
+      chunks: frameBuf.toChunks()
+    })
+  }
+
+  return frames
+}
+
+Framer.prototype._continuationFrame = function _continuationFrame (frame,
+  body,
+  callback) {
+  var frames = this._split(frame)
+
+  frames.forEach(function (subFrame, i) {
+    var isFirst = i === 0
+    var isLast = i === frames.length - 1
+
+    var flags = isLast ? constants.flags.END_HEADERS : 0
+
+    // PRIORITY and friends
+    if (isFirst) {
+      flags |= frame.flags
+    }
+
+    this._frame({
+      id: frame.id,
+      priority: false,
+      type: isFirst ? frame.type : 'CONTINUATION',
+      flags: flags
+    }, function (buf) {
+      // Fill those reserved bytes
+      if (isFirst && body) { body(buf) }
+
+      buf.reserve(subFrame.size)
+      for (var i = 0; i < subFrame.chunks.length; i++) { buf.copyFrom(subFrame.chunks[i]) }
+    }, isLast ? callback : null)
+  }, this)
+
+  if (frames.length === 0) {
+    this._frame({
+      id: frame.id,
+      priority: false,
+      type: frame.type,
+      flags: frame.flags | constants.flags.END_HEADERS
+    }, function (buf) {
+      if (body) { body(buf) }
+    }, callback)
+  }
+}
+
+Framer.prototype._compressHeaders = function _compressHeaders (headers,
+  pairs,
+  callback) {
+  Object.keys(headers || {}).forEach(function (name) {
+    var lowName = name.toLowerCase()
+
+    // Not allowed in HTTP2
+    switch (lowName) {
+      case 'host':
+      case 'connection':
+      case 'keep-alive':
+      case 'proxy-connection':
+      case 'transfer-encoding':
+      case 'upgrade':
+        return
+    }
+
+    // Should be in `pairs`
+    if (/^:/.test(lowName)) {
+      return
+    }
+
+    // Do not compress, or index Cookie field (for security reasons)
+    var neverIndex = lowName === 'cookie' || lowName === 'set-cookie'
+
+    var value = headers[name]
+    if (Array.isArray(value)) {
+      for (var i = 0; i < value.length; i++) {
+        pairs.push({
+          name: lowName,
+          value: value[i] + '',
+          neverIndex: neverIndex,
+          huffman: !neverIndex
+        })
+      }
+    } else {
+      pairs.push({
+        name: lowName,
+        value: value + '',
+        neverIndex: neverIndex,
+        huffman: !neverIndex
+      })
+    }
+  })
+
+  assert(this.compress !== null, 'Framer version not initialized')
+  debugExtra('compressing headers=%j', pairs)
+  this.compress.write([ pairs ], callback)
+}
+
+Framer.prototype._isDefaultPriority = function _isDefaultPriority (priority) {
+  if (!priority) { return true }
+
+  return !priority.parent &&
+         priority.weight === constants.DEFAULT &&
+         !priority.exclusive
+}
+
+Framer.prototype._defaultHeaders = function _defaultHeaders (frame, pairs) {
+  if (!frame.path) {
+    throw new Error('`path` is required frame argument')
+  }
+
+  pairs.push({
+    name: ':method',
+    value: frame.method || base.constants.DEFAULT_METHOD
+  })
+  pairs.push({ name: ':path', value: frame.path })
+  pairs.push({ name: ':scheme', value: frame.scheme || 'https' })
+  pairs.push({
+    name: ':authority',
+    value: frame.host ||
+           (frame.headers && frame.headers.host) ||
+           base.constants.DEFAULT_HOST
+  })
+}
+
+Framer.prototype._headersFrame = function _headersFrame (kind, frame, callback) {
+  var pairs = []
+
+  if (kind === 'request') {
+    this._defaultHeaders(frame, pairs)
+  } else if (kind === 'response') {
+    pairs.push({ name: ':status', value: (frame.status || 200) + '' })
+  }
+
+  var self = this
+  this._compressHeaders(frame.headers, pairs, function (err, chunks) {
+    if (err) {
+      if (callback) {
+        return callback(err)
+      } else {
+        return self.emit('error', err)
+      }
+    }
+
+    var reserve = 0
+
+    // If priority info is present, and the values are not default ones
+    // reserve space for the priority info and add PRIORITY flag
+    var priority = frame.priority
+    if (!self._isDefaultPriority(priority)) { reserve = 5 }
+
+    var flags = reserve === 0 ? 0 : constants.flags.PRIORITY
+
+    // Mostly for testing
+    if (frame.fin) {
+      flags |= constants.flags.END_STREAM
+    }
+
+    self._continuationFrame({
+      id: frame.id,
+      type: 'HEADERS',
+      flags: flags,
+      reserve: reserve,
+      chunks: chunks
+    }, function (buf) {
+      if (reserve === 0) {
+        return
+      }
+
+      buf.writeUInt32BE(((priority.exclusive ? 0x80000000 : 0) |
+                         priority.parent) >>> 0)
+      buf.writeUInt8((priority.weight | 0) - 1)
+    }, callback)
+  })
+}
+
+Framer.prototype.requestFrame = function requestFrame (frame, callback) {
+  return this._headersFrame('request', frame, callback)
+}
+
+Framer.prototype.responseFrame = function responseFrame (frame, callback) {
+  return this._headersFrame('response', frame, callback)
+}
+
+Framer.prototype.headersFrame = function headersFrame (frame, callback) {
+  return this._headersFrame('headers', frame, callback)
+}
+
+Framer.prototype.pushFrame = function pushFrame (frame, callback) {
+  var self = this
+
+  function compress (headers, pairs, callback) {
+    self._compressHeaders(headers, pairs, function (err, chunks) {
+      if (err) {
+        if (callback) {
+          return callback(err)
+        } else {
+          return self.emit('error', err)
+        }
+      }
+
+      callback(chunks)
+    })
+  }
+
+  function sendPromise (chunks) {
+    self._continuationFrame({
+      id: frame.id,
+      type: 'PUSH_PROMISE',
+      reserve: 4,
+      chunks: chunks
+    }, function (buf) {
+      buf.writeUInt32BE(frame.promisedId)
+    })
+  }
+
+  function sendResponse (chunks, callback) {
+    var priority = frame.priority
+    var isDefaultPriority = self._isDefaultPriority(priority)
+    var flags = isDefaultPriority ? 0 : constants.flags.PRIORITY
+
+    // Mostly for testing
+    if (frame.fin) {
+      flags |= constants.flags.END_STREAM
+    }
+
+    self._continuationFrame({
+      id: frame.promisedId,
+      type: 'HEADERS',
+      flags: flags,
+      reserve: isDefaultPriority ? 0 : 5,
+      chunks: chunks
+    }, function (buf) {
+      if (isDefaultPriority) {
+        return
+      }
+
+      buf.writeUInt32BE((priority.exclusive ? 0x80000000 : 0) |
+                        priority.parent)
+      buf.writeUInt8((priority.weight | 0) - 1)
+    }, callback)
+  }
+
+  this._checkPush(function (err) {
+    if (err) {
+      return callback(err)
+    }
+
+    var pairs = {
+      promise: [],
+      response: []
+    }
+
+    self._defaultHeaders(frame, pairs.promise)
+    pairs.response.push({ name: ':status', value: (frame.status || 200) + '' })
+
+    compress(frame.headers, pairs.promise, function (promiseChunks) {
+      sendPromise(promiseChunks)
+      if (frame.response === false) {
+        return callback(null)
+      }
+      compress(frame.response, pairs.response, function (responseChunks) {
+        sendResponse(responseChunks, callback)
+      })
+    })
+  })
+}
+
+Framer.prototype.priorityFrame = function priorityFrame (frame, callback) {
+  this._frame({
+    id: frame.id,
+    priority: false,
+    type: 'PRIORITY',
+    flags: 0
+  }, function (buf) {
+    var priority = frame.priority
+    buf.writeUInt32BE((priority.exclusive ? 0x80000000 : 0) |
+                      priority.parent)
+    buf.writeUInt8((priority.weight | 0) - 1)
+  }, callback)
+}
+
+Framer.prototype.dataFrame = function dataFrame (frame, callback) {
+  var frames = this._split({
+    reserve: 0,
+    chunks: [ frame.data ]
+  })
+
+  var fin = frame.fin ? constants.flags.END_STREAM : 0
+
+  var self = this
+  frames.forEach(function (subFrame, i) {
+    var isLast = i === frames.length - 1
+    var flags = 0
+    if (isLast) {
+      flags |= fin
+    }
+
+    self._frame({
+      id: frame.id,
+      priority: frame.priority,
+      type: 'DATA',
+      flags: flags
+    }, function (buf) {
+      buf.reserve(subFrame.size)
+      for (var i = 0; i < subFrame.chunks.length; i++) { buf.copyFrom(subFrame.chunks[i]) }
+    }, isLast ? callback : null)
+  })
+
+  // Empty DATA
+  if (frames.length === 0) {
+    this._frame({
+      id: frame.id,
+      priority: frame.priority,
+      type: 'DATA',
+      flags: fin
+    }, function (buf) {
+      // No-op
+    }, callback)
+  }
+}
+
+Framer.prototype.pingFrame = function pingFrame (frame, callback) {
+  this._frame({
+    id: 0,
+    type: 'PING',
+    flags: frame.ack ? constants.flags.ACK : 0
+  }, function (buf) {
+    buf.copyFrom(frame.opaque)
+  }, callback)
+}
+
+Framer.prototype.rstFrame = function rstFrame (frame, callback) {
+  this._frame({
+    id: frame.id,
+    type: 'RST_STREAM',
+    flags: 0
+  }, function (buf) {
+    buf.writeUInt32BE(constants.error[frame.code])
+  }, callback)
+}
+
+Framer.prototype.prefaceFrame = function prefaceFrame (callback) {
+  debug('preface')
+  this._resetTimeout()
+  this.schedule({
+    stream: 0,
+    priority: false,
+    chunks: [ constants.PREFACE_BUFFER ],
+    callback: callback
+  })
+}
+
+Framer.prototype.settingsFrame = function settingsFrame (options, callback) {
+  var key = JSON.stringify(options)
+
+  var settings = Framer.settingsCache[key]
+  if (settings) {
+    debug('cached settings')
+    this._resetTimeout()
+    this.schedule({
+      id: 0,
+      priority: false,
+      chunks: settings,
+      callback: callback
+    })
+    return
+  }
+
+  var params = []
+  for (var i = 0; i < constants.settingsIndex.length; i++) {
+    var name = constants.settingsIndex[i]
+    if (!name) {
+      continue
+    }
+
+    // value: Infinity
+    if (!isFinite(options[name])) {
+      continue
+    }
+
+    if (options[name] !== undefined) {
+      params.push({ key: i, value: options[name] })
+    }
+  }
+
+  var bodySize = params.length * 6
+
+  var chunks = this._frame({
+    id: 0,
+    type: 'SETTINGS',
+    flags: 0
+  }, function (buffer) {
+    buffer.reserve(bodySize)
+    for (var i = 0; i < params.length; i++) {
+      var param = params[i]
+
+      buffer.writeUInt16BE(param.key)
+      buffer.writeUInt32BE(param.value)
+    }
+  }, callback)
+
+  Framer.settingsCache[key] = chunks
+}
+Framer.settingsCache = {}
+
+Framer.prototype.ackSettingsFrame = function ackSettingsFrame (callback) {
+  /* var chunks = */ this._frame({
+    id: 0,
+    type: 'SETTINGS',
+    flags: constants.flags.ACK
+  }, function (buffer) {
+    // No-op
+  }, callback)
+}
+
+Framer.prototype.windowUpdateFrame = function windowUpdateFrame (frame,
+  callback) {
+  this._frame({
+    id: frame.id,
+    type: 'WINDOW_UPDATE',
+    flags: 0
+  }, function (buffer) {
+    buffer.reserve(4)
+    buffer.writeInt32BE(frame.delta)
+  }, callback)
+}
+
+Framer.prototype.goawayFrame = function goawayFrame (frame, callback) {
+  this._frame({
+    type: 'GOAWAY',
+    id: 0,
+    flags: 0
+  }, function (buf) {
+    buf.reserve(8)
+
+    // Last-good-stream-ID
+    buf.writeUInt32BE(frame.lastId & 0x7fffffff)
+    // Code
+    buf.writeUInt32BE(constants.goaway[frame.code])
+
+    // Extra debugging information
+    if (frame.extra) { buf.write(frame.extra) }
+  }, callback)
+}
+
+Framer.prototype.xForwardedFor = function xForwardedFor (frame, callback) {
+  this._frame({
+    type: 'X_FORWARDED_FOR',
+    id: 0,
+    flags: 0
+  }, function (buf) {
+    buf.write(frame.host)
+  }, callback)
+}

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/http2/parser.js

@@ -0,0 +1,578 @@
+'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')
+
+function Parser (options) {
+  base.Parser.call(this, options)
+
+  this.isServer = options.isServer
+
+  this.waiting = constants.PREFACE_SIZE
+  this.state = 'preface'
+  this.pendingHeader = null
+
+  // Header Block queue
+  this._lastHeaderBlock = null
+  this.maxFrameSize = constants.INITIAL_MAX_FRAME_SIZE
+  this.maxHeaderListSize = constants.DEFAULT_MAX_HEADER_LIST_SIZE
+}
+util.inherits(Parser, base.Parser)
+
+parser.create = function create (options) {
+  return new Parser(options)
+}
+
+Parser.prototype.setMaxFrameSize = function setMaxFrameSize (size) {
+  this.maxFrameSize = size
+}
+
+Parser.prototype.setMaxHeaderListSize = function setMaxHeaderListSize (size) {
+  this.maxHeaderListSize = size
+}
+
+// Only for testing
+Parser.prototype.skipPreface = function skipPreface () {
+  // Just some number bigger than 3.1, doesn't really matter for HTTP2
+  this.setVersion(4)
+
+  // Parse frame header!
+  this.state = 'frame-head'
+  this.waiting = constants.FRAME_HEADER_SIZE
+}
+
+Parser.prototype.execute = function execute (buffer, callback) {
+  if (this.state === 'preface') { return this.onPreface(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.partial = false
+    self.waiting = constants.FRAME_HEADER_SIZE
+    callback(null, frame)
+  })
+}
+
+Parser.prototype.executePartial = function executePartial (buffer, callback) {
+  var header = this.pendingHeader
+
+  assert.strictEqual(header.flags & constants.flags.PADDED, 0)
+
+  if (this.window) { this.window.recv.update(-buffer.size) }
+
+  callback(null, {
+    type: 'DATA',
+    id: header.id,
+
+    // Partial DATA can't be FIN
+    fin: false,
+    data: buffer.take(buffer.size)
+  })
+}
+
+Parser.prototype.onPreface = function onPreface (buffer, callback) {
+  if (buffer.take(buffer.size).toString() !== constants.PREFACE) {
+    return callback(this.error(constants.error.PROTOCOL_ERROR,
+      'Invalid preface'))
+  }
+
+  this.skipPreface()
+  callback(null, null)
+}
+
+Parser.prototype.onFrameHead = function onFrameHead (buffer, callback) {
+  var header = {
+    length: buffer.readUInt24BE(),
+    control: true,
+    type: buffer.readUInt8(),
+    flags: buffer.readUInt8(),
+    id: buffer.readUInt32BE() & 0x7fffffff
+  }
+
+  if (header.length > this.maxFrameSize) {
+    return callback(this.error(constants.error.FRAME_SIZE_ERROR,
+      'Frame length OOB'))
+  }
+
+  header.control = header.type !== constants.frameType.DATA
+
+  this.state = 'frame-body'
+  this.pendingHeader = header
+  this.waiting = header.length
+  this.partial = !header.control
+
+  // TODO(indutny): eventually support partial padded DATA
+  if (this.partial) {
+    this.partial = (header.flags & constants.flags.PADDED) === 0
+  }
+
+  callback(null, null)
+}
+
+Parser.prototype.onFrameBody = function onFrameBody (header, buffer, callback) {
+  var frameType = constants.frameType
+
+  if (header.type === frameType.DATA) {
+    this.onDataFrame(header, buffer, callback)
+  } else if (header.type === frameType.HEADERS) {
+    this.onHeadersFrame(header, buffer, callback)
+  } else if (header.type === frameType.CONTINUATION) {
+    this.onContinuationFrame(header, buffer, callback)
+  } else if (header.type === frameType.WINDOW_UPDATE) {
+    this.onWindowUpdateFrame(header, buffer, callback)
+  } else if (header.type === frameType.RST_STREAM) {
+    this.onRSTFrame(header, buffer, callback)
+  } else if (header.type === frameType.SETTINGS) {
+    this.onSettingsFrame(header, buffer, callback)
+  } else if (header.type === frameType.PUSH_PROMISE) {
+    this.onPushPromiseFrame(header, buffer, callback)
+  } else if (header.type === frameType.PING) {
+    this.onPingFrame(header, buffer, callback)
+  } else if (header.type === frameType.GOAWAY) {
+    this.onGoawayFrame(header, buffer, callback)
+  } else if (header.type === frameType.PRIORITY) {
+    this.onPriorityFrame(header, buffer, callback)
+  } else if (header.type === frameType.X_FORWARDED_FOR) {
+    this.onXForwardedFrame(header, buffer, callback)
+  } else {
+    this.onUnknownFrame(header, buffer, callback)
+  }
+}
+
+Parser.prototype.onUnknownFrame = function onUnknownFrame (header, buffer, callback) {
+  if (this._lastHeaderBlock !== null) {
+    callback(this.error(constants.error.PROTOCOL_ERROR,
+      'Received unknown frame in the middle of a header block'))
+    return
+  }
+  callback(null, { type: 'unknown: ' + header.type })
+}
+
+Parser.prototype.unpadData = function unpadData (header, body, callback) {
+  var isPadded = (header.flags & constants.flags.PADDED) !== 0
+
+  if (!isPadded) { return callback(null, body) }
+
+  if (!body.has(1)) {
+    return callback(this.error(constants.error.FRAME_SIZE_ERROR,
+      'Not enough space for padding'))
+  }
+
+  var pad = body.readUInt8()
+  if (!body.has(pad)) {
+    return callback(this.error(constants.error.PROTOCOL_ERROR,
+      'Invalid padding size'))
+  }
+
+  var contents = body.clone(body.size - pad)
+  body.skip(body.size)
+  callback(null, contents)
+}
+
+Parser.prototype.onDataFrame = function onDataFrame (header, body, callback) {
+  var isEndStream = (header.flags & constants.flags.END_STREAM) !== 0
+
+  if (header.id === 0) {
+    return callback(this.error(constants.error.PROTOCOL_ERROR,
+      'Received DATA frame with stream=0'))
+  }
+
+  // Count received bytes
+  if (this.window) {
+    this.window.recv.update(-body.size)
+  }
+
+  this.unpadData(header, body, function (err, data) {
+    if (err) {
+      return callback(err)
+    }
+
+    callback(null, {
+      type: 'DATA',
+      id: header.id,
+      fin: isEndStream,
+      data: data.take(data.size)
+    })
+  })
+}
+
+Parser.prototype.initHeaderBlock = function initHeaderBlock (header,
+  frame,
+  block,
+  callback) {
+  if (this._lastHeaderBlock) {
+    return callback(this.error(constants.error.PROTOCOL_ERROR,
+      'Duplicate Stream ID'))
+  }
+
+  this._lastHeaderBlock = {
+    id: header.id,
+    frame: frame,
+    queue: [],
+    size: 0
+  }
+
+  this.queueHeaderBlock(header, block, callback)
+}
+
+Parser.prototype.queueHeaderBlock = function queueHeaderBlock (header,
+  block,
+  callback) {
+  var self = this
+  var item = this._lastHeaderBlock
+  if (!this._lastHeaderBlock || item.id !== header.id) {
+    return callback(this.error(constants.error.PROTOCOL_ERROR,
+      'No matching stream for continuation'))
+  }
+
+  var fin = (header.flags & constants.flags.END_HEADERS) !== 0
+
+  var chunks = block.toChunks()
+  for (var i = 0; i < chunks.length; i++) {
+    var chunk = chunks[i]
+    item.queue.push(chunk)
+    item.size += chunk.length
+  }
+
+  if (item.size >= self.maxHeaderListSize) {
+    return callback(this.error(constants.error.PROTOCOL_ERROR,
+      'Compressed header list is too large'))
+  }
+
+  if (!fin) { return callback(null, null) }
+  this._lastHeaderBlock = null
+
+  this.decompress.write(item.queue, function (err, chunks) {
+    if (err) {
+      return callback(self.error(constants.error.COMPRESSION_ERROR,
+        err.message))
+    }
+
+    var headers = {}
+    var size = 0
+    for (var i = 0; i < chunks.length; i++) {
+      var header = chunks[i]
+
+      size += header.name.length + header.value.length + 32
+      if (size >= self.maxHeaderListSize) {
+        return callback(self.error(constants.error.PROTOCOL_ERROR,
+          'Header list is too large'))
+      }
+
+      if (/[A-Z]/.test(header.name)) {
+        return callback(self.error(constants.error.PROTOCOL_ERROR,
+          'Header name must be lowercase'))
+      }
+
+      utils.addHeaderLine(header.name, header.value, headers)
+    }
+
+    item.frame.headers = headers
+    item.frame.path = headers[':path']
+
+    callback(null, item.frame)
+  })
+}
+
+Parser.prototype.onHeadersFrame = function onHeadersFrame (header,
+  body,
+  callback) {
+  var self = this
+
+  if (header.id === 0) {
+    return callback(this.error(constants.error.PROTOCOL_ERROR,
+      'Invalid stream id for HEADERS'))
+  }
+
+  this.unpadData(header, body, function (err, data) {
+    if (err) { return callback(err) }
+
+    var isPriority = (header.flags & constants.flags.PRIORITY) !== 0
+    if (!data.has(isPriority ? 5 : 0)) {
+      return callback(self.error(constants.error.FRAME_SIZE_ERROR,
+        'Not enough data for HEADERS'))
+    }
+
+    var exclusive = false
+    var dependency = 0
+    var weight = constants.DEFAULT_WEIGHT
+    if (isPriority) {
+      dependency = data.readUInt32BE()
+      exclusive = (dependency & 0x80000000) !== 0
+      dependency &= 0x7fffffff
+
+      // Weight's range is [1, 256]
+      weight = data.readUInt8() + 1
+    }
+
+    if (dependency === header.id) {
+      return callback(self.error(constants.error.PROTOCOL_ERROR,
+        'Stream can\'t dependend on itself'))
+    }
+
+    var streamInfo = {
+      type: 'HEADERS',
+      id: header.id,
+      priority: {
+        parent: dependency,
+        exclusive: exclusive,
+        weight: weight
+      },
+      fin: (header.flags & constants.flags.END_STREAM) !== 0,
+      writable: true,
+      headers: null,
+      path: null
+    }
+
+    self.initHeaderBlock(header, streamInfo, data, callback)
+  })
+}
+
+Parser.prototype.onContinuationFrame = function onContinuationFrame (header,
+  body,
+  callback) {
+  this.queueHeaderBlock(header, body, callback)
+}
+
+Parser.prototype.onRSTFrame = function onRSTFrame (header, body, callback) {
+  if (body.size !== 4) {
+    return callback(this.error(constants.error.FRAME_SIZE_ERROR,
+      'RST_STREAM length not 4'))
+  }
+
+  if (header.id === 0) {
+    return callback(this.error(constants.error.PROTOCOL_ERROR,
+      'Invalid stream id for RST_STREAM'))
+  }
+
+  callback(null, {
+    type: 'RST',
+    id: header.id,
+    code: constants.errorByCode[body.readUInt32BE()]
+  })
+}
+
+Parser.prototype._validateSettings = function _validateSettings (settings) {
+  if (settings['enable_push'] !== undefined &&
+      settings['enable_push'] !== 0 &&
+      settings['enable_push'] !== 1) {
+    return this.error(constants.error.PROTOCOL_ERROR,
+      'SETTINGS_ENABLE_PUSH must be 0 or 1')
+  }
+
+  if (settings['initial_window_size'] !== undefined &&
+      (settings['initial_window_size'] > constants.MAX_INITIAL_WINDOW_SIZE ||
+       settings['initial_window_size'] < 0)) {
+    return this.error(constants.error.FLOW_CONTROL_ERROR,
+      'SETTINGS_INITIAL_WINDOW_SIZE is OOB')
+  }
+
+  if (settings['max_frame_size'] !== undefined &&
+      (settings['max_frame_size'] > constants.ABSOLUTE_MAX_FRAME_SIZE ||
+       settings['max_frame_size'] < constants.INITIAL_MAX_FRAME_SIZE)) {
+    return this.error(constants.error.PROTOCOL_ERROR,
+      'SETTINGS_MAX_FRAME_SIZE is OOB')
+  }
+
+  return undefined
+}
+
+Parser.prototype.onSettingsFrame = function onSettingsFrame (header,
+  body,
+  callback) {
+  if (header.id !== 0) {
+    return callback(this.error(constants.error.PROTOCOL_ERROR,
+      'Invalid stream id for SETTINGS'))
+  }
+
+  var isAck = (header.flags & constants.flags.ACK) !== 0
+  if (isAck && body.size !== 0) {
+    return callback(this.error(constants.error.FRAME_SIZE_ERROR,
+      'SETTINGS with ACK and non-zero length'))
+  }
+
+  if (isAck) {
+    return callback(null, { type: 'ACK_SETTINGS' })
+  }
+
+  if (body.size % 6 !== 0) {
+    return callback(this.error(constants.error.FRAME_SIZE_ERROR,
+      'SETTINGS length not multiple of 6'))
+  }
+
+  var settings = {}
+  while (!body.isEmpty()) {
+    var id = body.readUInt16BE()
+    var value = body.readUInt32BE()
+    var name = constants.settingsIndex[id]
+
+    if (name) {
+      settings[name] = value
+    }
+  }
+
+  var err = this._validateSettings(settings)
+  if (err !== undefined) {
+    return callback(err)
+  }
+
+  callback(null, {
+    type: 'SETTINGS',
+    settings: settings
+  })
+}
+
+Parser.prototype.onPushPromiseFrame = function onPushPromiseFrame (header,
+  body,
+  callback) {
+  if (header.id === 0) {
+    return callback(this.error(constants.error.PROTOCOL_ERROR,
+      'Invalid stream id for PUSH_PROMISE'))
+  }
+
+  var self = this
+  this.unpadData(header, body, function (err, data) {
+    if (err) {
+      return callback(err)
+    }
+
+    if (!data.has(4)) {
+      return callback(self.error(constants.error.FRAME_SIZE_ERROR,
+        'PUSH_PROMISE length less than 4'))
+    }
+
+    var streamInfo = {
+      type: 'PUSH_PROMISE',
+      id: header.id,
+      fin: false,
+      promisedId: data.readUInt32BE() & 0x7fffffff,
+      headers: null,
+      path: null
+    }
+
+    self.initHeaderBlock(header, streamInfo, data, callback)
+  })
+}
+
+Parser.prototype.onPingFrame = function onPingFrame (header, body, callback) {
+  if (body.size !== 8) {
+    return callback(this.error(constants.error.FRAME_SIZE_ERROR,
+      'PING length != 8'))
+  }
+
+  if (header.id !== 0) {
+    return callback(this.error(constants.error.PROTOCOL_ERROR,
+      'Invalid stream id for PING'))
+  }
+
+  var ack = (header.flags & constants.flags.ACK) !== 0
+  callback(null, { type: 'PING', opaque: body.take(body.size), ack: ack })
+}
+
+Parser.prototype.onGoawayFrame = function onGoawayFrame (header,
+  body,
+  callback) {
+  if (!body.has(8)) {
+    return callback(this.error(constants.error.FRAME_SIZE_ERROR,
+      'GOAWAY length < 8'))
+  }
+
+  if (header.id !== 0) {
+    return callback(this.error(constants.error.PROTOCOL_ERROR,
+      'Invalid stream id for GOAWAY'))
+  }
+
+  var frame = {
+    type: 'GOAWAY',
+    lastId: body.readUInt32BE(),
+    code: constants.goawayByCode[body.readUInt32BE()]
+  }
+
+  if (body.size !== 0) { frame.debug = body.take(body.size) }
+
+  callback(null, frame)
+}
+
+Parser.prototype.onPriorityFrame = function onPriorityFrame (header,
+  body,
+  callback) {
+  if (body.size !== 5) {
+    return callback(this.error(constants.error.FRAME_SIZE_ERROR,
+      'PRIORITY length != 5'))
+  }
+
+  if (header.id === 0) {
+    return callback(this.error(constants.error.PROTOCOL_ERROR,
+      'Invalid stream id for PRIORITY'))
+  }
+
+  var dependency = body.readUInt32BE()
+
+  // Again the range is from 1 to 256
+  var weight = body.readUInt8() + 1
+
+  if (dependency === header.id) {
+    return callback(this.error(constants.error.PROTOCOL_ERROR,
+      'Stream can\'t dependend on itself'))
+  }
+
+  callback(null, {
+    type: 'PRIORITY',
+    id: header.id,
+    priority: {
+      exclusive: (dependency & 0x80000000) !== 0,
+      parent: dependency & 0x7fffffff,
+      weight: weight
+    }
+  })
+}
+
+Parser.prototype.onWindowUpdateFrame = function onWindowUpdateFrame (header,
+  body,
+  callback) {
+  if (body.size !== 4) {
+    return callback(this.error(constants.error.FRAME_SIZE_ERROR,
+      'WINDOW_UPDATE length != 4'))
+  }
+
+  var delta = body.readInt32BE()
+  if (delta === 0) {
+    return callback(this.error(constants.error.PROTOCOL_ERROR,
+      'WINDOW_UPDATE delta == 0'))
+  }
+
+  callback(null, {
+    type: 'WINDOW_UPDATE',
+    id: header.id,
+    delta: delta
+  })
+}
+
+Parser.prototype.onXForwardedFrame = function onXForwardedFrame (header,
+  body,
+  callback) {
+  callback(null, {
+    type: 'X_FORWARDED_FOR',
+    host: body.take(body.size).toString()
+  })
+}

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
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+  0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x00, 0x00, // cation..
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+  0x6d, 0x61, 0x74, 0x63, 0x68, 0x00, 0x00, 0x00, // match...
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+  0x2d, 0x6d, 0x6f, 0x64, 0x69, 0x66, 0x69, 0x65, // -modifie
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+  0x61, 0x74, 0x69, 0x6f, 0x6e, 0x00, 0x00, 0x00, // ation...
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+  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
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+  0x79, 0x2d, 0x61, 0x66, 0x74, 0x65, 0x72, 0x00, // y-after.
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+  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
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+  0x65, 0x72, 0x2d, 0x61, 0x67, 0x65, 0x6e, 0x74, // er-agent
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+  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
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+  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
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+  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
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+  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/framer.js

@@ -0,0 +1,519 @@
+'use strict'
+
+var transport = require('../../../spdy-transport')
+var constants = require('./').constants
+var base = transport.protocol.base
+var utils = base.utils
+
+var assert = require('assert')
+var util = require('util')
+var Buffer = require('buffer').Buffer
+var WriteBuffer = require('wbuf')
+
+var debug = require('debug')('spdy:framer')
+
+function Framer (options) {
+  base.Framer.call(this, options)
+}
+util.inherits(Framer, base.Framer)
+module.exports = Framer
+
+Framer.create = function create (options) {
+  return new Framer(options)
+}
+
+Framer.prototype.setMaxFrameSize = function setMaxFrameSize (size) {
+  // http2-only
+}
+
+Framer.prototype.headersToDict = function headersToDict (headers,
+  preprocess,
+  callback) {
+  function stringify (value) {
+    if (value !== undefined) {
+      if (Array.isArray(value)) {
+        return value.join('\x00')
+      } else if (typeof value === 'string') {
+        return value
+      } else {
+        return value.toString()
+      }
+    } else {
+      return ''
+    }
+  }
+
+  // Lower case of all headers keys
+  var loweredHeaders = {}
+  Object.keys(headers || {}).map(function (key) {
+    loweredHeaders[key.toLowerCase()] = headers[key]
+  })
+
+  // Allow outer code to add custom headers or remove something
+  if (preprocess) { preprocess(loweredHeaders) }
+
+  // Transform object into kv pairs
+  var size = this.version === 2 ? 2 : 4
+  var len = size
+  var pairs = Object.keys(loweredHeaders).filter(function (key) {
+    var lkey = key.toLowerCase()
+
+    // Will be in `:host`
+    if (lkey === 'host' && this.version >= 3) {
+      return false
+    }
+
+    return lkey !== 'connection' && lkey !== 'keep-alive' &&
+           lkey !== 'proxy-connection' && lkey !== 'transfer-encoding'
+  }, this).map(function (key) {
+    var klen = Buffer.byteLength(key)
+    var value = stringify(loweredHeaders[key])
+    var vlen = Buffer.byteLength(value)
+
+    len += size * 2 + klen + vlen
+    return [klen, key, vlen, value]
+  })
+
+  var block = new WriteBuffer()
+  block.reserve(len)
+
+  if (this.version === 2) {
+    block.writeUInt16BE(pairs.length)
+  } else {
+    block.writeUInt32BE(pairs.length)
+  }
+
+  pairs.forEach(function (pair) {
+    // Write key length
+    if (this.version === 2) {
+      block.writeUInt16BE(pair[0])
+    } else {
+      block.writeUInt32BE(pair[0])
+    }
+
+    // Write key
+    block.write(pair[1])
+
+    // Write value length
+    if (this.version === 2) {
+      block.writeUInt16BE(pair[2])
+    } else {
+      block.writeUInt32BE(pair[2])
+    }
+    // Write value
+    block.write(pair[3])
+  }, this)
+
+  assert(this.compress !== null, 'Framer version not initialized')
+  this.compress.write(block.render(), callback)
+}
+
+Framer.prototype._frame = function _frame (frame, body, callback) {
+  if (!this.version) {
+    this.on('version', function () {
+      this._frame(frame, body, callback)
+    })
+    return
+  }
+
+  debug('id=%d type=%s', frame.id, frame.type)
+
+  var buffer = new WriteBuffer()
+
+  buffer.writeUInt16BE(0x8000 | this.version)
+  buffer.writeUInt16BE(constants.frameType[frame.type])
+  buffer.writeUInt8(frame.flags)
+  var len = buffer.skip(3)
+
+  body(buffer)
+
+  var frameSize = buffer.size - constants.FRAME_HEADER_SIZE
+  len.writeUInt24BE(frameSize)
+
+  var chunks = buffer.render()
+  var toWrite = {
+    stream: frame.id,
+    priority: false,
+    chunks: chunks,
+    callback: callback
+  }
+
+  this._resetTimeout()
+  this.schedule(toWrite)
+
+  return chunks
+}
+
+Framer.prototype._synFrame = function _synFrame (frame, callback) {
+  var self = this
+
+  if (!frame.path) {
+    throw new Error('`path` is required frame argument')
+  }
+
+  function preprocess (headers) {
+    var method = frame.method || base.constants.DEFAULT_METHOD
+    var version = frame.version || 'HTTP/1.1'
+    var scheme = frame.scheme || 'https'
+    var host = frame.host ||
+               (frame.headers && frame.headers.host) ||
+               base.constants.DEFAULT_HOST
+
+    if (self.version === 2) {
+      headers.method = method
+      headers.version = version
+      headers.url = frame.path
+      headers.scheme = scheme
+      headers.host = host
+      if (frame.status) {
+        headers.status = frame.status
+      }
+    } else {
+      headers[':method'] = method
+      headers[':version'] = version
+      headers[':path'] = frame.path
+      headers[':scheme'] = scheme
+      headers[':host'] = host
+      if (frame.status) { headers[':status'] = frame.status }
+    }
+  }
+
+  this.headersToDict(frame.headers, preprocess, function (err, chunks) {
+    if (err) {
+      if (callback) {
+        return callback(err)
+      } else {
+        return self.emit('error', err)
+      }
+    }
+
+    self._frame({
+      type: 'SYN_STREAM',
+      id: frame.id,
+      flags: frame.fin ? constants.flags.FLAG_FIN : 0
+    }, function (buf) {
+      buf.reserve(10)
+
+      buf.writeUInt32BE(frame.id & 0x7fffffff)
+      buf.writeUInt32BE(frame.associated & 0x7fffffff)
+
+      var weight = (frame.priority && frame.priority.weight) ||
+                   constants.DEFAULT_WEIGHT
+
+      // We only have 3 bits for priority in SPDY, try to fit it into this
+      var priority = utils.weightToPriority(weight)
+      buf.writeUInt8(priority << 5)
+
+      // CREDENTIALS slot
+      buf.writeUInt8(0)
+
+      for (var i = 0; i < chunks.length; i++) {
+        buf.copyFrom(chunks[i])
+      }
+    }, callback)
+  })
+}
+
+Framer.prototype.requestFrame = function requestFrame (frame, callback) {
+  this._synFrame({
+    id: frame.id,
+    fin: frame.fin,
+    associated: 0,
+    method: frame.method,
+    version: frame.version,
+    scheme: frame.scheme,
+    host: frame.host,
+    path: frame.path,
+    priority: frame.priority,
+    headers: frame.headers
+  }, callback)
+}
+
+Framer.prototype.responseFrame = function responseFrame (frame, callback) {
+  var self = this
+
+  var reason = frame.reason
+  if (!reason) {
+    reason = constants.statusReason[frame.status]
+  }
+
+  function preprocess (headers) {
+    if (self.version === 2) {
+      headers.status = frame.status + ' ' + reason
+      headers.version = 'HTTP/1.1'
+    } else {
+      headers[':status'] = frame.status + ' ' + reason
+      headers[':version'] = 'HTTP/1.1'
+    }
+  }
+
+  this.headersToDict(frame.headers, preprocess, function (err, chunks) {
+    if (err) {
+      if (callback) {
+        return callback(err)
+      } else {
+        return self.emit('error', err)
+      }
+    }
+
+    self._frame({
+      type: 'SYN_REPLY',
+      id: frame.id,
+      flags: 0
+    }, function (buf) {
+      buf.reserve(self.version === 2 ? 6 : 4)
+
+      buf.writeUInt32BE(frame.id & 0x7fffffff)
+
+      // Unused data
+      if (self.version === 2) {
+        buf.writeUInt16BE(0)
+      }
+
+      for (var i = 0; i < chunks.length; i++) {
+        buf.copyFrom(chunks[i])
+      }
+    }, callback)
+  })
+}
+
+Framer.prototype.pushFrame = function pushFrame (frame, callback) {
+  var self = this
+
+  this._checkPush(function (err) {
+    if (err) { return callback(err) }
+
+    self._synFrame({
+      id: frame.promisedId,
+      associated: frame.id,
+      method: frame.method,
+      status: frame.status || 200,
+      version: frame.version,
+      scheme: frame.scheme,
+      host: frame.host,
+      path: frame.path,
+      priority: frame.priority,
+
+      // Merge everything together, there is no difference in SPDY protocol
+      headers: Object.assign(Object.assign({}, frame.headers), frame.response)
+    }, callback)
+  })
+}
+
+Framer.prototype.headersFrame = function headersFrame (frame, callback) {
+  var self = this
+
+  this.headersToDict(frame.headers, null, function (err, chunks) {
+    if (err) {
+      if (callback) { return callback(err) } else {
+        return self.emit('error', err)
+      }
+    }
+
+    self._frame({
+      type: 'HEADERS',
+      id: frame.id,
+      priority: false,
+      flags: 0
+    }, function (buf) {
+      buf.reserve(4 + (self.version === 2 ? 2 : 0))
+      buf.writeUInt32BE(frame.id & 0x7fffffff)
+
+      // Unused data
+      if (self.version === 2) { buf.writeUInt16BE(0) }
+
+      for (var i = 0; i < chunks.length; i++) {
+        buf.copyFrom(chunks[i])
+      }
+    }, callback)
+  })
+}
+
+Framer.prototype.dataFrame = function dataFrame (frame, callback) {
+  if (!this.version) {
+    return this.on('version', function () {
+      this.dataFrame(frame, callback)
+    })
+  }
+
+  debug('id=%d type=DATA', frame.id)
+
+  var buffer = new WriteBuffer()
+  buffer.reserve(8 + frame.data.length)
+
+  buffer.writeUInt32BE(frame.id & 0x7fffffff)
+  buffer.writeUInt8(frame.fin ? 0x01 : 0x0)
+  buffer.writeUInt24BE(frame.data.length)
+  buffer.copyFrom(frame.data)
+
+  var chunks = buffer.render()
+  var toWrite = {
+    stream: frame.id,
+    priority: frame.priority,
+    chunks: chunks,
+    callback: callback
+  }
+
+  var self = this
+  this._resetTimeout()
+
+  var bypass = this.version < 3.1
+  this.window.send.update(-frame.data.length, bypass ? undefined : function () {
+    self._resetTimeout()
+    self.schedule(toWrite)
+  })
+
+  if (bypass) {
+    this._resetTimeout()
+    this.schedule(toWrite)
+  }
+}
+
+Framer.prototype.pingFrame = function pingFrame (frame, callback) {
+  this._frame({
+    type: 'PING',
+    id: 0,
+    flags: 0
+  }, function (buf, callback) {
+    buf.reserve(4)
+
+    var opaque = frame.opaque
+    buf.writeUInt32BE(opaque.readUInt32BE(opaque.length - 4, true))
+  }, callback)
+}
+
+Framer.prototype.rstFrame = function rstFrame (frame, callback) {
+  this._frame({
+    type: 'RST_STREAM',
+    id: frame.id,
+    flags: 0
+  }, function (buf) {
+    buf.reserve(8)
+
+    // Stream ID
+    buf.writeUInt32BE(frame.id & 0x7fffffff)
+    // Status Code
+    buf.writeUInt32BE(constants.error[frame.code])
+
+    // Extra debugging information
+    if (frame.extra) {
+      buf.write(frame.extra)
+    }
+  }, callback)
+}
+
+Framer.prototype.prefaceFrame = function prefaceFrame () {
+}
+
+Framer.prototype.settingsFrame = function settingsFrame (options, callback) {
+  var self = this
+
+  var key = this.version + '/' + JSON.stringify(options)
+
+  var settings = Framer.settingsCache[key]
+  if (settings) {
+    debug('cached settings')
+    this._resetTimeout()
+    this.schedule({
+      stream: 0,
+      priority: false,
+      chunks: settings,
+      callback: callback
+    })
+    return
+  }
+
+  var params = []
+  for (var i = 0; i < constants.settingsIndex.length; i++) {
+    var name = constants.settingsIndex[i]
+    if (!name) { continue }
+
+    // value: Infinity
+    if (!isFinite(options[name])) {
+      continue
+    }
+
+    if (options[name] !== undefined) {
+      params.push({ key: i, value: options[name] })
+    }
+  }
+
+  var frame = this._frame({
+    type: 'SETTINGS',
+    id: 0,
+    flags: 0
+  }, function (buf) {
+    buf.reserve(4 + 8 * params.length)
+
+    // Count of entries
+    buf.writeUInt32BE(params.length)
+
+    params.forEach(function (param) {
+      var flag = constants.settings.FLAG_SETTINGS_PERSIST_VALUE << 24
+
+      if (self.version === 2) {
+        buf.writeUInt32LE(flag | param.key)
+      } else { buf.writeUInt32BE(flag | param.key) }
+      buf.writeUInt32BE(param.value & 0x7fffffff)
+    })
+  }, callback)
+
+  Framer.settingsCache[key] = frame
+}
+Framer.settingsCache = {}
+
+Framer.prototype.ackSettingsFrame = function ackSettingsFrame (callback) {
+  if (callback) {
+    process.nextTick(callback)
+  }
+}
+
+Framer.prototype.windowUpdateFrame = function windowUpdateFrame (frame,
+  callback) {
+  this._frame({
+    type: 'WINDOW_UPDATE',
+    id: frame.id,
+    flags: 0
+  }, function (buf) {
+    buf.reserve(8)
+
+    // ID
+    buf.writeUInt32BE(frame.id & 0x7fffffff)
+
+    // Delta
+    buf.writeInt32BE(frame.delta)
+  }, callback)
+}
+
+Framer.prototype.goawayFrame = function goawayFrame (frame, callback) {
+  this._frame({
+    type: 'GOAWAY',
+    id: 0,
+    flags: 0
+  }, function (buf) {
+    buf.reserve(8)
+
+    // Last-good-stream-ID
+    buf.writeUInt32BE(frame.lastId & 0x7fffffff)
+    // Status
+    buf.writeUInt32BE(constants.goaway[frame.code])
+  }, callback)
+}
+
+Framer.prototype.priorityFrame = function priorityFrame (frame, callback) {
+  // No such thing in SPDY
+  if (callback) {
+    process.nextTick(callback)
+  }
+}
+
+Framer.prototype.xForwardedFor = function xForwardedFor (frame, callback) {
+  this._frame({
+    type: 'X_FORWARDED_FOR',
+    id: 0,
+    flags: 0
+  }, function (buf) {
+    buf.writeUInt32BE(Buffer.byteLength(frame.host))
+    buf.write(frame.host)
+  }, callback)
+}

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/stream.js

@@ -0,0 +1,710 @@
+'use strict'
+
+var transport = require('../spdy-transport')
+
+var assert = require('assert')
+var util = require('util')
+
+var debug = {
+  client: require('debug')('spdy:stream:client'),
+  server: require('debug')('spdy:stream:server')
+}
+var Duplex = require('readable-stream').Duplex
+
+function Stream (connection, options) {
+  Duplex.call(this)
+
+  var connectionState = connection._spdyState
+
+  var state = {}
+  this._spdyState = state
+
+  this.id = options.id
+  this.method = options.method
+  this.path = options.path
+  this.host = options.host
+  this.headers = options.headers || {}
+  this.connection = connection
+  this.parent = options.parent || null
+
+  state.socket = null
+  state.protocol = connectionState.protocol
+  state.constants = state.protocol.constants
+
+  // See _initPriority()
+  state.priority = null
+
+  state.version = this.connection.getVersion()
+  state.isServer = this.connection.isServer()
+  state.debug = state.isServer ? debug.server : debug.client
+
+  state.framer = connectionState.framer
+  state.parser = connectionState.parser
+
+  state.request = options.request
+  state.needResponse = options.request
+  state.window = connectionState.streamWindow.clone(options.id)
+  state.sessionWindow = connectionState.window
+  state.maxChunk = connectionState.maxChunk
+
+  // Can't send incoming request
+  // (See `.send()` method)
+  state.sent = !state.request
+
+  state.readable = options.readable !== false
+  state.writable = options.writable !== false
+
+  state.aborted = false
+
+  state.corked = 0
+  state.corkQueue = []
+
+  state.timeout = new transport.utils.Timeout(this)
+
+  this.on('finish', this._onFinish)
+  this.on('end', this._onEnd)
+
+  var self = this
+  function _onWindowOverflow () {
+    self._onWindowOverflow()
+  }
+
+  state.window.recv.on('overflow', _onWindowOverflow)
+  state.window.send.on('overflow', _onWindowOverflow)
+
+  this._initPriority(options.priority)
+
+  if (!state.readable) { this.push(null) }
+  if (!state.writable) {
+    this._writableState.ended = true
+    this._writableState.finished = true
+  }
+}
+util.inherits(Stream, Duplex)
+exports.Stream = Stream
+
+Stream.prototype._init = function _init (socket) {
+  this.socket = socket
+}
+
+Stream.prototype._initPriority = function _initPriority (priority) {
+  var state = this._spdyState
+  var connectionState = this.connection._spdyState
+  var root = connectionState.priorityRoot
+
+  if (!priority) {
+    state.priority = root.addDefault(this.id)
+    return
+  }
+
+  state.priority = root.add({
+    id: this.id,
+    parent: priority.parent,
+    weight: priority.weight,
+    exclusive: priority.exclusive
+  })
+}
+
+Stream.prototype._handleFrame = function _handleFrame (frame) {
+  var state = this._spdyState
+
+  // Ignore any kind of data after abort
+  if (state.aborted) {
+    state.debug('id=%d ignoring frame=%s after abort', this.id, frame.type)
+    return
+  }
+
+  // Restart the timer on incoming frames
+  state.timeout.reset()
+
+  if (frame.type === 'DATA') {
+    this._handleData(frame)
+  } else if (frame.type === 'HEADERS') {
+    this._handleHeaders(frame)
+  } else if (frame.type === 'RST') {
+    this._handleRST(frame)
+  } else if (frame.type === 'WINDOW_UPDATE') { this._handleWindowUpdate(frame) } else if (frame.type === 'PRIORITY') {
+    this._handlePriority(frame)
+  } else if (frame.type === 'PUSH_PROMISE') { this._handlePushPromise(frame) }
+
+  if (frame.fin) {
+    state.debug('id=%d end', this.id)
+    this.push(null)
+  }
+}
+
+function checkAborted (stream, state, callback) {
+  if (state.aborted) {
+    state.debug('id=%d abort write', stream.id)
+    process.nextTick(function () {
+      callback(new Error('Stream write aborted'))
+    })
+    return true
+  }
+
+  return false
+}
+
+function _send (stream, state, data, callback) {
+  if (checkAborted(stream, state, callback)) {
+    return
+  }
+
+  state.debug('id=%d presend=%d', stream.id, data.length)
+
+  state.timeout.reset()
+
+  state.window.send.update(-data.length, function () {
+    if (checkAborted(stream, state, callback)) {
+      return
+    }
+
+    state.debug('id=%d send=%d', stream.id, data.length)
+
+    state.timeout.reset()
+
+    state.framer.dataFrame({
+      id: stream.id,
+      priority: state.priority.getPriority(),
+      fin: false,
+      data: data
+    }, function (err) {
+      state.debug('id=%d postsend=%d', stream.id, data.length)
+      callback(err)
+    })
+  })
+}
+
+Stream.prototype._write = function _write (data, enc, callback) {
+  var state = this._spdyState
+
+  // Send the request if it wasn't sent
+  if (!state.sent) { this.send() }
+
+  // Writes should come after pending control frames (response and headers)
+  if (state.corked !== 0) {
+    var self = this
+    state.corkQueue.push(function () {
+      self._write(data, enc, callback)
+    })
+    return
+  }
+
+  // Split DATA in chunks to prevent window from going negative
+  this._splitStart(data, _send, callback)
+}
+
+Stream.prototype._splitStart = function _splitStart (data, onChunk, callback) {
+  return this._split(data, 0, onChunk, callback)
+}
+
+Stream.prototype._split = function _split (data, offset, onChunk, callback) {
+  if (offset === data.length) {
+    return process.nextTick(callback)
+  }
+
+  var state = this._spdyState
+  var local = state.window.send
+  var session = state.sessionWindow.send
+
+  var availSession = Math.max(0, session.getCurrent())
+  if (availSession === 0) {
+    availSession = session.getMax()
+  }
+  var availLocal = Math.max(0, local.getCurrent())
+  if (availLocal === 0) {
+    availLocal = local.getMax()
+  }
+
+  var avail = Math.min(availSession, availLocal)
+  avail = Math.min(avail, state.maxChunk)
+
+  var self = this
+
+  if (avail === 0) {
+    state.window.send.update(0, function () {
+      self._split(data, offset, onChunk, callback)
+    })
+    return
+  }
+
+  // Split data in chunks in a following way:
+  var limit = avail
+  var size = Math.min(data.length - offset, limit)
+
+  var chunk = data.slice(offset, offset + size)
+
+  onChunk(this, state, chunk, function (err) {
+    if (err) { return callback(err) }
+
+    // Get the next chunk
+    self._split(data, offset + size, onChunk, callback)
+  })
+}
+
+Stream.prototype._read = function _read () {
+  var state = this._spdyState
+
+  if (!state.window.recv.isDraining()) {
+    return
+  }
+
+  var delta = state.window.recv.getDelta()
+
+  state.debug('id=%d window emptying, update by %d', this.id, delta)
+
+  state.window.recv.update(delta)
+  state.framer.windowUpdateFrame({
+    id: this.id,
+    delta: delta
+  })
+}
+
+Stream.prototype._handleData = function _handleData (frame) {
+  var state = this._spdyState
+
+  // DATA on ended or not readable stream!
+  if (!state.readable || this._readableState.ended) {
+    state.framer.rstFrame({ id: this.id, code: 'STREAM_CLOSED' })
+    return
+  }
+
+  state.debug('id=%d recv=%d', this.id, frame.data.length)
+  state.window.recv.update(-frame.data.length)
+
+  this.push(frame.data)
+}
+
+Stream.prototype._handleRST = function _handleRST (frame) {
+  if (frame.code !== 'CANCEL') {
+    this.emit('error', new Error('Got RST: ' + frame.code))
+  }
+  this.abort()
+}
+
+Stream.prototype._handleWindowUpdate = function _handleWindowUpdate (frame) {
+  var state = this._spdyState
+
+  state.window.send.update(frame.delta)
+}
+
+Stream.prototype._onWindowOverflow = function _onWindowOverflow () {
+  var state = this._spdyState
+
+  state.debug('id=%d window overflow', this.id)
+  state.framer.rstFrame({ id: this.id, code: 'FLOW_CONTROL_ERROR' })
+
+  this.aborted = true
+  this.emit('error', new Error('HTTP2 window overflow'))
+}
+
+Stream.prototype._handlePriority = function _handlePriority (frame) {
+  var state = this._spdyState
+
+  state.priority.remove()
+  state.priority = null
+  this._initPriority(frame.priority)
+
+  // Mostly for testing purposes
+  this.emit('priority', frame.priority)
+}
+
+Stream.prototype._handleHeaders = function _handleHeaders (frame) {
+  var state = this._spdyState
+
+  if (!state.readable || this._readableState.ended) {
+    state.framer.rstFrame({ id: this.id, code: 'STREAM_CLOSED' })
+    return
+  }
+
+  if (state.needResponse) {
+    return this._handleResponse(frame)
+  }
+
+  this.emit('headers', frame.headers)
+}
+
+Stream.prototype._handleResponse = function _handleResponse (frame) {
+  var state = this._spdyState
+
+  if (frame.headers[':status'] === undefined) {
+    state.framer.rstFrame({ id: this.id, code: 'PROTOCOL_ERROR' })
+    return
+  }
+
+  state.needResponse = false
+  this.emit('response', frame.headers[':status'] | 0, frame.headers)
+}
+
+Stream.prototype._onFinish = function _onFinish () {
+  var state = this._spdyState
+
+  // Send the request if it wasn't sent
+  if (!state.sent) {
+    // NOTE: will send HEADERS with FIN flag
+    this.send()
+  } else {
+    // Just an `.end()` without any writes will trigger immediate `finish` event
+    // without any calls to `_write()`.
+    if (state.corked !== 0) {
+      var self = this
+      state.corkQueue.push(function () {
+        self._onFinish()
+      })
+      return
+    }
+
+    state.framer.dataFrame({
+      id: this.id,
+      priority: state.priority.getPriority(),
+      fin: true,
+      data: Buffer.alloc(0)
+    })
+  }
+
+  this._maybeClose()
+}
+
+Stream.prototype._onEnd = function _onEnd () {
+  this._maybeClose()
+}
+
+Stream.prototype._checkEnded = function _checkEnded (callback) {
+  var state = this._spdyState
+
+  var ended = false
+  if (state.aborted) { ended = true }
+
+  if (!state.writable || this._writableState.finished) { ended = true }
+
+  if (!ended) {
+    return true
+  }
+
+  if (!callback) {
+    return false
+  }
+
+  var err = new Error('Ended stream can\'t send frames')
+  process.nextTick(function () {
+    callback(err)
+  })
+
+  return false
+}
+
+Stream.prototype._maybeClose = function _maybeClose () {
+  var state = this._spdyState
+
+  // .abort() emits `close`
+  if (state.aborted) {
+    return
+  }
+
+  if ((!state.readable || this._readableState.ended) &&
+      this._writableState.finished) {
+    // Clear timeout
+    state.timeout.set(0)
+
+    this.emit('close')
+  }
+}
+
+Stream.prototype._handlePushPromise = function _handlePushPromise (frame) {
+  var push = this.connection._createStream({
+    id: frame.promisedId,
+    parent: this,
+    push: true,
+    request: true,
+    method: frame.headers[':method'],
+    path: frame.headers[':path'],
+    host: frame.headers[':authority'],
+    priority: frame.priority,
+    headers: frame.headers,
+    writable: false
+  })
+
+  // GOAWAY
+  if (this.connection._isGoaway(push.id)) {
+    return
+  }
+
+  if (!this.emit('pushPromise', push)) {
+    push.abort()
+  }
+}
+
+Stream.prototype._hardCork = function _hardCork () {
+  var state = this._spdyState
+
+  this.cork()
+  state.corked++
+}
+
+Stream.prototype._hardUncork = function _hardUncork () {
+  var state = this._spdyState
+
+  this.uncork()
+  state.corked--
+  if (state.corked !== 0) {
+    return
+  }
+
+  // Invoke callbacks
+  var queue = state.corkQueue
+  state.corkQueue = []
+  for (var i = 0; i < queue.length; i++) {
+    queue[i]()
+  }
+}
+
+Stream.prototype._sendPush = function _sendPush (status, response, callback) {
+  var self = this
+  var state = this._spdyState
+
+  this._hardCork()
+  state.framer.pushFrame({
+    id: this.parent.id,
+    promisedId: this.id,
+    priority: state.priority.toJSON(),
+    path: this.path,
+    host: this.host,
+    method: this.method,
+    status: status,
+    headers: this.headers,
+    response: response
+  }, function (err) {
+    self._hardUncork()
+
+    callback(err)
+  })
+}
+
+Stream.prototype._wasSent = function _wasSent () {
+  var state = this._spdyState
+  return state.sent
+}
+
+// Public API
+
+Stream.prototype.send = function send (callback) {
+  var state = this._spdyState
+
+  if (state.sent) {
+    var err = new Error('Stream was already sent')
+    process.nextTick(function () {
+      if (callback) {
+        callback(err)
+      }
+    })
+    return
+  }
+
+  state.sent = true
+  state.timeout.reset()
+
+  // GET requests should always be auto-finished
+  if (this.method === 'GET') {
+    this._writableState.ended = true
+    this._writableState.finished = true
+  }
+
+  // TODO(indunty): ideally it should just take a stream object as an input
+  var self = this
+  this._hardCork()
+  state.framer.requestFrame({
+    id: this.id,
+    method: this.method,
+    path: this.path,
+    host: this.host,
+    priority: state.priority.toJSON(),
+    headers: this.headers,
+    fin: this._writableState.finished
+  }, function (err) {
+    self._hardUncork()
+
+    if (!callback) {
+      return
+    }
+
+    callback(err)
+  })
+}
+
+Stream.prototype.respond = function respond (status, headers, callback) {
+  var self = this
+  var state = this._spdyState
+  assert(!state.request, 'Can\'t respond on request')
+
+  state.timeout.reset()
+
+  if (!this._checkEnded(callback)) { return }
+
+  var frame = {
+    id: this.id,
+    status: status,
+    headers: headers
+  }
+  this._hardCork()
+  state.framer.responseFrame(frame, function (err) {
+    self._hardUncork()
+    if (callback) { callback(err) }
+  })
+}
+
+Stream.prototype.setWindow = function setWindow (size) {
+  var state = this._spdyState
+
+  state.timeout.reset()
+
+  if (!this._checkEnded()) {
+    return
+  }
+
+  state.debug('id=%d force window max=%d', this.id, size)
+  state.window.recv.setMax(size)
+
+  var delta = state.window.recv.getDelta()
+  if (delta === 0) { return }
+
+  state.framer.windowUpdateFrame({
+    id: this.id,
+    delta: delta
+  })
+  state.window.recv.update(delta)
+}
+
+Stream.prototype.sendHeaders = function sendHeaders (headers, callback) {
+  var self = this
+  var state = this._spdyState
+
+  state.timeout.reset()
+
+  if (!this._checkEnded(callback)) {
+    return
+  }
+
+  // Request wasn't yet send, coalesce headers
+  if (!state.sent) {
+    this.headers = Object.assign({}, this.headers)
+    Object.assign(this.headers, headers)
+    process.nextTick(function () {
+      if (callback) {
+        callback(null)
+      }
+    })
+    return
+  }
+
+  this._hardCork()
+  state.framer.headersFrame({
+    id: this.id,
+    headers: headers
+  }, function (err) {
+    self._hardUncork()
+    if (callback) { callback(err) }
+  })
+}
+
+Stream.prototype._destroy = function destroy () {
+  this.abort()
+}
+
+Stream.prototype.abort = function abort (code, callback) {
+  var state = this._spdyState
+
+  // .abort(callback)
+  if (typeof code === 'function') {
+    callback = code
+    code = null
+  }
+
+  if (this._readableState.ended && this._writableState.finished) {
+    state.debug('id=%d already closed', this.id)
+    if (callback) {
+      process.nextTick(callback)
+    }
+    return
+  }
+
+  if (state.aborted) {
+    state.debug('id=%d already aborted', this.id)
+    if (callback) { process.nextTick(callback) }
+    return
+  }
+
+  state.aborted = true
+  state.debug('id=%d abort', this.id)
+
+  this.setTimeout(0)
+
+  var abortCode = code || 'CANCEL'
+
+  state.framer.rstFrame({
+    id: this.id,
+    code: abortCode
+  })
+
+  var self = this
+  process.nextTick(function () {
+    if (callback) {
+      callback(null)
+    }
+    self.emit('close', new Error('Aborted, code: ' + abortCode))
+  })
+}
+
+Stream.prototype.setPriority = function setPriority (info) {
+  var state = this._spdyState
+
+  state.timeout.reset()
+
+  if (!this._checkEnded()) {
+    return
+  }
+
+  state.debug('id=%d priority change', this.id, info)
+
+  var frame = { id: this.id, priority: info }
+
+  // Change priority on this side
+  this._handlePriority(frame)
+
+  // And on the other too
+  state.framer.priorityFrame(frame)
+}
+
+Stream.prototype.pushPromise = function pushPromise (uri, callback) {
+  if (!this._checkEnded(callback)) {
+    return
+  }
+
+  var self = this
+  this._hardCork()
+  var push = this.connection.pushPromise(this, uri, function (err) {
+    self._hardUncork()
+    if (!err) {
+      push._hardUncork()
+    }
+
+    if (callback) {
+      return callback(err, push)
+    }
+
+    if (err) { push.emit('error', err) }
+  })
+  push._hardCork()
+
+  return push
+}
+
+Stream.prototype.setMaxChunk = function setMaxChunk (size) {
+  var state = this._spdyState
+  state.maxChunk = size
+}
+
+Stream.prototype.setTimeout = function setTimeout (delay, callback) {
+  var state = this._spdyState
+
+  state.timeout.set(delay, callback)
+}

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
+    }
+  })
+}

node_modules/spdy-transport/node_modules/debug/LICENSE

@@ -0,0 +1,20 @@
+(The MIT License)
+
+Copyright (c) 2014-2017 TJ Holowaychuk <tj@vision-media.ca>
+Copyright (c) 2018-2021 Josh Junon
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+and associated documentation files (the 'Software'), to deal in the Software without restriction,
+including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial
+portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
+LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+

node_modules/spdy-transport/node_modules/debug/README.md

@@ -0,0 +1,481 @@
+# debug
+[![OpenCollective](https://opencollective.com/debug/backers/badge.svg)](#backers)
+[![OpenCollective](https://opencollective.com/debug/sponsors/badge.svg)](#sponsors)
+
+<img width="647" src="https://user-images.githubusercontent.com/71256/29091486-fa38524c-7c37-11e7-895f-e7ec8e1039b6.png">
+
+A tiny JavaScript debugging utility modelled after Node.js core's debugging
+technique. Works in Node.js and web browsers.
+
+## Installation
+
+```bash
+$ npm install debug
+```
+
+## Usage
+
+`debug` exposes a function; simply pass this function the name of your module, and it will return a decorated version of `console.error` for you to pass debug statements to. This will allow you to toggle the debug output for different parts of your module as well as the module as a whole.
+
+Example [_app.js_](./examples/node/app.js):
+
+```js
+var debug = require('debug')('http')
+  , http = require('http')
+  , name = 'My App';
+
+// fake app
+
+debug('booting %o', name);
+
+http.createServer(function(req, res){
+  debug(req.method + ' ' + req.url);
+  res.end('hello\n');
+}).listen(3000, function(){
+  debug('listening');
+});
+
+// fake worker of some kind
+
+require('./worker');
+```
+
+Example [_worker.js_](./examples/node/worker.js):
+
+```js
+var a = require('debug')('worker:a')
+  , b = require('debug')('worker:b');
+
+function work() {
+  a('doing lots of uninteresting work');
+  setTimeout(work, Math.random() * 1000);
+}
+
+work();
+
+function workb() {
+  b('doing some work');
+  setTimeout(workb, Math.random() * 2000);
+}
+
+workb();
+```
+
+The `DEBUG` environment variable is then used to enable these based on space or
+comma-delimited names.
+
+Here are some examples:
+
+<img width="647" alt="screen shot 2017-08-08 at 12 53 04 pm" src="https://user-images.githubusercontent.com/71256/29091703-a6302cdc-7c38-11e7-8304-7c0b3bc600cd.png">
+<img width="647" alt="screen shot 2017-08-08 at 12 53 38 pm" src="https://user-images.githubusercontent.com/71256/29091700-a62a6888-7c38-11e7-800b-db911291ca2b.png">
+<img width="647" alt="screen shot 2017-08-08 at 12 53 25 pm" src="https://user-images.githubusercontent.com/71256/29091701-a62ea114-7c38-11e7-826a-2692bedca740.png">
+
+#### Windows command prompt notes
+
+##### CMD
+
+On Windows the environment variable is set using the `set` command.
+
+```cmd
+set DEBUG=*,-not_this
+```
+
+Example:
+
+```cmd
+set DEBUG=* & node app.js
+```
+
+##### PowerShell (VS Code default)
+
+PowerShell uses different syntax to set environment variables.
+
+```cmd
+$env:DEBUG = "*,-not_this"
+```
+
+Example:
+
+```cmd
+$env:DEBUG='app';node app.js
+```
+
+Then, run the program to be debugged as usual.
+
+npm script example:
+```js
+  "windowsDebug": "@powershell -Command $env:DEBUG='*';node app.js",
+```
+
+## Namespace Colors
+
+Every debug instance has a color generated for it based on its namespace name.
+This helps when visually parsing the debug output to identify which debug instance
+a debug line belongs to.
+
+#### Node.js
+
+In Node.js, colors are enabled when stderr is a TTY. You also _should_ install
+the [`supports-color`](https://npmjs.org/supports-color) module alongside debug,
+otherwise debug will only use a small handful of basic colors.
+
+<img width="521" src="https://user-images.githubusercontent.com/71256/29092181-47f6a9e6-7c3a-11e7-9a14-1928d8a711cd.png">
+
+#### Web Browser
+
+Colors are also enabled on "Web Inspectors" that understand the `%c` formatting
+option. These are WebKit web inspectors, Firefox ([since version
+31](https://hacks.mozilla.org/2014/05/editable-box-model-multiple-selection-sublime-text-keys-much-more-firefox-developer-tools-episode-31/))
+and the Firebug plugin for Firefox (any version).
+
+<img width="524" src="https://user-images.githubusercontent.com/71256/29092033-b65f9f2e-7c39-11e7-8e32-f6f0d8e865c1.png">
+
+
+## Millisecond diff
+
+When actively developing an application it can be useful to see when the time spent between one `debug()` call and the next. Suppose for example you invoke `debug()` before requesting a resource, and after as well, the "+NNNms" will show you how much time was spent between calls.
+
+<img width="647" src="https://user-images.githubusercontent.com/71256/29091486-fa38524c-7c37-11e7-895f-e7ec8e1039b6.png">
+
+When stdout is not a TTY, `Date#toISOString()` is used, making it more useful for logging the debug information as shown below:
+
+<img width="647" src="https://user-images.githubusercontent.com/71256/29091956-6bd78372-7c39-11e7-8c55-c948396d6edd.png">
+
+
+## Conventions
+
+If you're using this in one or more of your libraries, you _should_ use the name of your library so that developers may toggle debugging as desired without guessing names. If you have more than one debuggers you _should_ prefix them with your library name and use ":" to separate features. For example "bodyParser" from Connect would then be "connect:bodyParser".  If you append a "*" to the end of your name, it will always be enabled regardless of the setting of the DEBUG environment variable.  You can then use it for normal output as well as debug output.
+
+## Wildcards
+
+The `*` character may be used as a wildcard. Suppose for example your library has
+debuggers named "connect:bodyParser", "connect:compress", "connect:session",
+instead of listing all three with
+`DEBUG=connect:bodyParser,connect:compress,connect:session`, you may simply do
+`DEBUG=connect:*`, or to run everything using this module simply use `DEBUG=*`.
+
+You can also exclude specific debuggers by prefixing them with a "-" character.
+For example, `DEBUG=*,-connect:*` would include all debuggers except those
+starting with "connect:".
+
+## Environment Variables
+
+When running through Node.js, you can set a few environment variables that will
+change the behavior of the debug logging:
+
+| Name      | Purpose                                         |
+|-----------|-------------------------------------------------|
+| `DEBUG`   | Enables/disables specific debugging namespaces. |
+| `DEBUG_HIDE_DATE` | Hide date from debug output (non-TTY).  |
+| `DEBUG_COLORS`| Whether or not to use colors in the debug output. |
+| `DEBUG_DEPTH` | Object inspection depth.                    |
+| `DEBUG_SHOW_HIDDEN` | Shows hidden properties on inspected objects. |
+
+
+__Note:__ The environment variables beginning with `DEBUG_` end up being
+converted into an Options object that gets used with `%o`/`%O` formatters.
+See the Node.js documentation for
+[`util.inspect()`](https://nodejs.org/api/util.html#util_util_inspect_object_options)
+for the complete list.
+
+## Formatters
+
+Debug uses [printf-style](https://wikipedia.org/wiki/Printf_format_string) formatting.
+Below are the officially supported formatters:
+
+| Formatter | Representation |
+|-----------|----------------|
+| `%O`      | Pretty-print an Object on multiple lines. |
+| `%o`      | Pretty-print an Object all on a single line. |
+| `%s`      | String. |
+| `%d`      | Number (both integer and float). |
+| `%j`      | JSON. Replaced with the string '[Circular]' if the argument contains circular references. |
+| `%%`      | Single percent sign ('%'). This does not consume an argument. |
+
+
+### Custom formatters
+
+You can add custom formatters by extending the `debug.formatters` object.
+For example, if you wanted to add support for rendering a Buffer as hex with
+`%h`, you could do something like:
+
+```js
+const createDebug = require('debug')
+createDebug.formatters.h = (v) => {
+  return v.toString('hex')
+}
+
+// …elsewhere
+const debug = createDebug('foo')
+debug('this is hex: %h', new Buffer('hello world'))
+//   foo this is hex: 68656c6c6f20776f726c6421 +0ms
+```
+
+
+## Browser Support
+
+You can build a browser-ready script using [browserify](https://github.com/substack/node-browserify),
+or just use the [browserify-as-a-service](https://wzrd.in/) [build](https://wzrd.in/standalone/debug@latest),
+if you don't want to build it yourself.
+
+Debug's enable state is currently persisted by `localStorage`.
+Consider the situation shown below where you have `worker:a` and `worker:b`,
+and wish to debug both. You can enable this using `localStorage.debug`:
+
+```js
+localStorage.debug = 'worker:*'
+```
+
+And then refresh the page.
+
+```js
+a = debug('worker:a');
+b = debug('worker:b');
+
+setInterval(function(){
+  a('doing some work');
+}, 1000);
+
+setInterval(function(){
+  b('doing some work');
+}, 1200);
+```
+
+In Chromium-based web browsers (e.g. Brave, Chrome, and Electron), the JavaScript console will—by default—only show messages logged by `debug` if the "Verbose" log level is _enabled_.
+
+<img width="647" src="https://user-images.githubusercontent.com/7143133/152083257-29034707-c42c-4959-8add-3cee850e6fcf.png">
+
+## Output streams
+
+  By default `debug` will log to stderr, however this can be configured per-namespace by overriding the `log` method:
+
+Example [_stdout.js_](./examples/node/stdout.js):
+
+```js
+var debug = require('debug');
+var error = debug('app:error');
+
+// by default stderr is used
+error('goes to stderr!');
+
+var log = debug('app:log');
+// set this namespace to log via console.log
+log.log = console.log.bind(console); // don't forget to bind to console!
+log('goes to stdout');
+error('still goes to stderr!');
+
+// set all output to go via console.info
+// overrides all per-namespace log settings
+debug.log = console.info.bind(console);
+error('now goes to stdout via console.info');
+log('still goes to stdout, but via console.info now');
+```
+
+## Extend
+You can simply extend debugger 
+```js
+const log = require('debug')('auth');
+
+//creates new debug instance with extended namespace
+const logSign = log.extend('sign');
+const logLogin = log.extend('login');
+
+log('hello'); // auth hello
+logSign('hello'); //auth:sign hello
+logLogin('hello'); //auth:login hello
+```
+
+## Set dynamically
+
+You can also enable debug dynamically by calling the `enable()` method :
+
+```js
+let debug = require('debug');
+
+console.log(1, debug.enabled('test'));
+
+debug.enable('test');
+console.log(2, debug.enabled('test'));
+
+debug.disable();
+console.log(3, debug.enabled('test'));
+
+```
+
+print :   
+```
+1 false
+2 true
+3 false
+```
+
+Usage :  
+`enable(namespaces)`  
+`namespaces` can include modes separated by a colon and wildcards.
+   
+Note that calling `enable()` completely overrides previously set DEBUG variable : 
+
+```
+$ DEBUG=foo node -e 'var dbg = require("debug"); dbg.enable("bar"); console.log(dbg.enabled("foo"))'
+=> false
+```
+
+`disable()`
+
+Will disable all namespaces. The functions returns the namespaces currently
+enabled (and skipped). This can be useful if you want to disable debugging
+temporarily without knowing what was enabled to begin with.
+
+For example:
+
+```js
+let debug = require('debug');
+debug.enable('foo:*,-foo:bar');
+let namespaces = debug.disable();
+debug.enable(namespaces);
+```
+
+Note: There is no guarantee that the string will be identical to the initial
+enable string, but semantically they will be identical.
+
+## Checking whether a debug target is enabled
+
+After you've created a debug instance, you can determine whether or not it is
+enabled by checking the `enabled` property:
+
+```javascript
+const debug = require('debug')('http');
+
+if (debug.enabled) {
+  // do stuff...
+}
+```
+
+You can also manually toggle this property to force the debug instance to be
+enabled or disabled.
+
+## Usage in child processes
+
+Due to the way `debug` detects if the output is a TTY or not, colors are not shown in child processes when `stderr` is piped. A solution is to pass the `DEBUG_COLORS=1` environment variable to the child process.  
+For example:
+
+```javascript
+worker = fork(WORKER_WRAP_PATH, [workerPath], {
+  stdio: [
+    /* stdin: */ 0,
+    /* stdout: */ 'pipe',
+    /* stderr: */ 'pipe',
+    'ipc',
+  ],
+  env: Object.assign({}, process.env, {
+    DEBUG_COLORS: 1 // without this settings, colors won't be shown
+  }),
+});
+
+worker.stderr.pipe(process.stderr, { end: false });
+```
+
+
+## Authors
+
+ - TJ Holowaychuk
+ - Nathan Rajlich
+ - Andrew Rhyne
+ - Josh Junon
+
+## Backers
+
+Support us with a monthly donation and help us continue our activities. [[Become a backer](https://opencollective.com/debug#backer)]
+
+<a href="https://opencollective.com/debug/backer/0/website" target="_blank"><img src="https://opencollective.com/debug/backer/0/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/1/website" target="_blank"><img src="https://opencollective.com/debug/backer/1/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/2/website" target="_blank"><img src="https://opencollective.com/debug/backer/2/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/3/website" target="_blank"><img src="https://opencollective.com/debug/backer/3/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/4/website" target="_blank"><img src="https://opencollective.com/debug/backer/4/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/5/website" target="_blank"><img src="https://opencollective.com/debug/backer/5/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/6/website" target="_blank"><img src="https://opencollective.com/debug/backer/6/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/7/website" target="_blank"><img src="https://opencollective.com/debug/backer/7/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/8/website" target="_blank"><img src="https://opencollective.com/debug/backer/8/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/9/website" target="_blank"><img src="https://opencollective.com/debug/backer/9/avatar.svg"></a>
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+<a href="https://opencollective.com/debug/backer/12/website" target="_blank"><img src="https://opencollective.com/debug/backer/12/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/13/website" target="_blank"><img src="https://opencollective.com/debug/backer/13/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/14/website" target="_blank"><img src="https://opencollective.com/debug/backer/14/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/15/website" target="_blank"><img src="https://opencollective.com/debug/backer/15/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/16/website" target="_blank"><img src="https://opencollective.com/debug/backer/16/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/17/website" target="_blank"><img src="https://opencollective.com/debug/backer/17/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/18/website" target="_blank"><img src="https://opencollective.com/debug/backer/18/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/19/website" target="_blank"><img src="https://opencollective.com/debug/backer/19/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/20/website" target="_blank"><img src="https://opencollective.com/debug/backer/20/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/21/website" target="_blank"><img src="https://opencollective.com/debug/backer/21/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/22/website" target="_blank"><img src="https://opencollective.com/debug/backer/22/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/23/website" target="_blank"><img src="https://opencollective.com/debug/backer/23/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/24/website" target="_blank"><img src="https://opencollective.com/debug/backer/24/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/25/website" target="_blank"><img src="https://opencollective.com/debug/backer/25/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/26/website" target="_blank"><img src="https://opencollective.com/debug/backer/26/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/27/website" target="_blank"><img src="https://opencollective.com/debug/backer/27/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/28/website" target="_blank"><img src="https://opencollective.com/debug/backer/28/avatar.svg"></a>
+<a href="https://opencollective.com/debug/backer/29/website" target="_blank"><img src="https://opencollective.com/debug/backer/29/avatar.svg"></a>
+
+
+## Sponsors
+
+Become a sponsor and get your logo on our README on Github with a link to your site. [[Become a sponsor](https://opencollective.com/debug#sponsor)]
+
+<a href="https://opencollective.com/debug/sponsor/0/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/0/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/1/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/1/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/2/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/2/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/3/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/3/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/4/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/4/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/5/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/5/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/6/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/6/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/7/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/7/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/8/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/8/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/9/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/9/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/10/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/10/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/11/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/11/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/12/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/12/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/13/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/13/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/14/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/14/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/15/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/15/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/16/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/16/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/17/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/17/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/18/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/18/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/19/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/19/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/20/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/20/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/21/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/21/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/22/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/22/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/23/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/23/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/24/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/24/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/25/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/25/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/26/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/26/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/27/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/27/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/28/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/28/avatar.svg"></a>
+<a href="https://opencollective.com/debug/sponsor/29/website" target="_blank"><img src="https://opencollective.com/debug/sponsor/29/avatar.svg"></a>
+
+## License
+
+(The MIT License)
+
+Copyright (c) 2014-2017 TJ Holowaychuk &lt;tj@vision-media.ca&gt;
+Copyright (c) 2018-2021 Josh Junon
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

node_modules/spdy-transport/node_modules/debug/package.json

@@ -0,0 +1,64 @@
+{
+  "name": "debug",
+  "version": "4.4.3",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/debug-js/debug.git"
+  },
+  "description": "Lightweight debugging utility for Node.js and the browser",
+  "keywords": [
+    "debug",
+    "log",
+    "debugger"
+  ],
+  "files": [
+    "src",
+    "LICENSE",
+    "README.md"
+  ],
+  "author": "Josh Junon (https://github.com/qix-)",
+  "contributors": [
+    "TJ Holowaychuk <tj@vision-media.ca>",
+    "Nathan Rajlich <nathan@tootallnate.net> (http://n8.io)",
+    "Andrew Rhyne <rhyneandrew@gmail.com>"
+  ],
+  "license": "MIT",
+  "scripts": {
+    "lint": "xo",
+    "test": "npm run test:node && npm run test:browser && npm run lint",
+    "test:node": "mocha test.js test.node.js",
+    "test:browser": "karma start --single-run",
+    "test:coverage": "cat ./coverage/lcov.info | coveralls"
+  },
+  "dependencies": {
+    "ms": "^2.1.3"
+  },
+  "devDependencies": {
+    "brfs": "^2.0.1",
+    "browserify": "^16.2.3",
+    "coveralls": "^3.0.2",
+    "karma": "^3.1.4",
+    "karma-browserify": "^6.0.0",
+    "karma-chrome-launcher": "^2.2.0",
+    "karma-mocha": "^1.3.0",
+    "mocha": "^5.2.0",
+    "mocha-lcov-reporter": "^1.2.0",
+    "sinon": "^14.0.0",
+    "xo": "^0.23.0"
+  },
+  "peerDependenciesMeta": {
+    "supports-color": {
+      "optional": true
+    }
+  },
+  "main": "./src/index.js",
+  "browser": "./src/browser.js",
+  "engines": {
+    "node": ">=6.0"
+  },
+  "xo": {
+    "rules": {
+      "import/extensions": "off"
+    }
+  }
+}

node_modules/spdy-transport/node_modules/debug/src/browser.js

@@ -0,0 +1,272 @@
+/* eslint-env browser */
+
+/**
+ * This is the web browser implementation of `debug()`.
+ */
+
+exports.formatArgs = formatArgs;
+exports.save = save;
+exports.load = load;
+exports.useColors = useColors;
+exports.storage = localstorage();
+exports.destroy = (() => {
+	let warned = false;
+
+	return () => {
+		if (!warned) {
+			warned = true;
+			console.warn('Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.');
+		}
+	};
+})();
+
+/**
+ * Colors.
+ */
+
+exports.colors = [
+	'#0000CC',
+	'#0000FF',
+	'#0033CC',
+	'#0033FF',
+	'#0066CC',
+	'#0066FF',
+	'#0099CC',
+	'#0099FF',
+	'#00CC00',
+	'#00CC33',
+	'#00CC66',
+	'#00CC99',
+	'#00CCCC',
+	'#00CCFF',
+	'#3300CC',
+	'#3300FF',
+	'#3333CC',
+	'#3333FF',
+	'#3366CC',
+	'#3366FF',
+	'#3399CC',
+	'#3399FF',
+	'#33CC00',
+	'#33CC33',
+	'#33CC66',
+	'#33CC99',
+	'#33CCCC',
+	'#33CCFF',
+	'#6600CC',
+	'#6600FF',
+	'#6633CC',
+	'#6633FF',
+	'#66CC00',
+	'#66CC33',
+	'#9900CC',
+	'#9900FF',
+	'#9933CC',
+	'#9933FF',
+	'#99CC00',
+	'#99CC33',
+	'#CC0000',
+	'#CC0033',
+	'#CC0066',
+	'#CC0099',
+	'#CC00CC',
+	'#CC00FF',
+	'#CC3300',
+	'#CC3333',
+	'#CC3366',
+	'#CC3399',
+	'#CC33CC',
+	'#CC33FF',
+	'#CC6600',
+	'#CC6633',
+	'#CC9900',
+	'#CC9933',
+	'#CCCC00',
+	'#CCCC33',
+	'#FF0000',
+	'#FF0033',
+	'#FF0066',
+	'#FF0099',
+	'#FF00CC',
+	'#FF00FF',
+	'#FF3300',
+	'#FF3333',
+	'#FF3366',
+	'#FF3399',
+	'#FF33CC',
+	'#FF33FF',
+	'#FF6600',
+	'#FF6633',
+	'#FF9900',
+	'#FF9933',
+	'#FFCC00',
+	'#FFCC33'
+];
+
+/**
+ * Currently only WebKit-based Web Inspectors, Firefox >= v31,
+ * and the Firebug extension (any Firefox version) are known
+ * to support "%c" CSS customizations.
+ *
+ * TODO: add a `localStorage` variable to explicitly enable/disable colors
+ */
+
+// eslint-disable-next-line complexity
+function useColors() {
+	// NB: In an Electron preload script, document will be defined but not fully
+	// initialized. Since we know we're in Chrome, we'll just detect this case
+	// explicitly
+	if (typeof window !== 'undefined' && window.process && (window.process.type === 'renderer' || window.process.__nwjs)) {
+		return true;
+	}
+
+	// Internet Explorer and Edge do not support colors.
+	if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) {
+		return false;
+	}
+
+	let m;
+
+	// Is webkit? http://stackoverflow.com/a/16459606/376773
+	// document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
+	// eslint-disable-next-line no-return-assign
+	return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||
+		// Is firebug? http://stackoverflow.com/a/398120/376773
+		(typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||
+		// Is firefox >= v31?
+		// https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
+		(typeof navigator !== 'undefined' && navigator.userAgent && (m = navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/)) && parseInt(m[1], 10) >= 31) ||
+		// Double check webkit in userAgent just in case we are in a worker
+		(typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/));
+}
+
+/**
+ * Colorize log arguments if enabled.
+ *
+ * @api public
+ */
+
+function formatArgs(args) {
+	args[0] = (this.useColors ? '%c' : '') +
+		this.namespace +
+		(this.useColors ? ' %c' : ' ') +
+		args[0] +
+		(this.useColors ? '%c ' : ' ') +
+		'+' + module.exports.humanize(this.diff);
+
+	if (!this.useColors) {
+		return;
+	}
+
+	const c = 'color: ' + this.color;
+	args.splice(1, 0, c, 'color: inherit');
+
+	// The final "%c" is somewhat tricky, because there could be other
+	// arguments passed either before or after the %c, so we need to
+	// figure out the correct index to insert the CSS into
+	let index = 0;
+	let lastC = 0;
+	args[0].replace(/%[a-zA-Z%]/g, match => {
+		if (match === '%%') {
+			return;
+		}
+		index++;
+		if (match === '%c') {
+			// We only are interested in the *last* %c
+			// (the user may have provided their own)
+			lastC = index;
+		}
+	});
+
+	args.splice(lastC, 0, c);
+}
+
+/**
+ * Invokes `console.debug()` when available.
+ * No-op when `console.debug` is not a "function".
+ * If `console.debug` is not available, falls back
+ * to `console.log`.
+ *
+ * @api public
+ */
+exports.log = console.debug || console.log || (() => {});
+
+/**
+ * Save `namespaces`.
+ *
+ * @param {String} namespaces
+ * @api private
+ */
+function save(namespaces) {
+	try {
+		if (namespaces) {
+			exports.storage.setItem('debug', namespaces);
+		} else {
+			exports.storage.removeItem('debug');
+		}
+	} catch (error) {
+		// Swallow
+		// XXX (@Qix-) should we be logging these?
+	}
+}
+
+/**
+ * Load `namespaces`.
+ *
+ * @return {String} returns the previously persisted debug modes
+ * @api private
+ */
+function load() {
+	let r;
+	try {
+		r = exports.storage.getItem('debug') || exports.storage.getItem('DEBUG') ;
+	} catch (error) {
+		// Swallow
+		// XXX (@Qix-) should we be logging these?
+	}
+
+	// If debug isn't set in LS, and we're in Electron, try to load $DEBUG
+	if (!r && typeof process !== 'undefined' && 'env' in process) {
+		r = process.env.DEBUG;
+	}
+
+	return r;
+}
+
+/**
+ * Localstorage attempts to return the localstorage.
+ *
+ * This is necessary because safari throws
+ * when a user disables cookies/localstorage
+ * and you attempt to access it.
+ *
+ * @return {LocalStorage}
+ * @api private
+ */
+
+function localstorage() {
+	try {
+		// TVMLKit (Apple TV JS Runtime) does not have a window object, just localStorage in the global context
+		// The Browser also has localStorage in the global context.
+		return localStorage;
+	} catch (error) {
+		// Swallow
+		// XXX (@Qix-) should we be logging these?
+	}
+}
+
+module.exports = require('./common')(exports);
+
+const {formatters} = module.exports;
+
+/**
+ * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
+ */
+
+formatters.j = function (v) {
+	try {
+		return JSON.stringify(v);
+	} catch (error) {
+		return '[UnexpectedJSONParseError]: ' + error.message;
+	}
+};

node_modules/spdy-transport/node_modules/debug/src/common.js

@@ -0,0 +1,292 @@
+
+/**
+ * This is the common logic for both the Node.js and web browser
+ * implementations of `debug()`.
+ */
+
+function setup(env) {
+	createDebug.debug = createDebug;
+	createDebug.default = createDebug;
+	createDebug.coerce = coerce;
+	createDebug.disable = disable;
+	createDebug.enable = enable;
+	createDebug.enabled = enabled;
+	createDebug.humanize = require('ms');
+	createDebug.destroy = destroy;
+
+	Object.keys(env).forEach(key => {
+		createDebug[key] = env[key];
+	});
+
+	/**
+	* The currently active debug mode names, and names to skip.
+	*/
+
+	createDebug.names = [];
+	createDebug.skips = [];
+
+	/**
+	* Map of special "%n" handling functions, for the debug "format" argument.
+	*
+	* Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
+	*/
+	createDebug.formatters = {};
+
+	/**
+	* Selects a color for a debug namespace
+	* @param {String} namespace The namespace string for the debug instance to be colored
+	* @return {Number|String} An ANSI color code for the given namespace
+	* @api private
+	*/
+	function selectColor(namespace) {
+		let hash = 0;
+
+		for (let i = 0; i < namespace.length; i++) {
+			hash = ((hash << 5) - hash) + namespace.charCodeAt(i);
+			hash |= 0; // Convert to 32bit integer
+		}
+
+		return createDebug.colors[Math.abs(hash) % createDebug.colors.length];
+	}
+	createDebug.selectColor = selectColor;
+
+	/**
+	* Create a debugger with the given `namespace`.
+	*
+	* @param {String} namespace
+	* @return {Function}
+	* @api public
+	*/
+	function createDebug(namespace) {
+		let prevTime;
+		let enableOverride = null;
+		let namespacesCache;
+		let enabledCache;
+
+		function debug(...args) {
+			// Disabled?
+			if (!debug.enabled) {
+				return;
+			}
+
+			const self = debug;
+
+			// Set `diff` timestamp
+			const curr = Number(new Date());
+			const ms = curr - (prevTime || curr);
+			self.diff = ms;
+			self.prev = prevTime;
+			self.curr = curr;
+			prevTime = curr;
+
+			args[0] = createDebug.coerce(args[0]);
+
+			if (typeof args[0] !== 'string') {
+				// Anything else let's inspect with %O
+				args.unshift('%O');
+			}
+
+			// Apply any `formatters` transformations
+			let index = 0;
+			args[0] = args[0].replace(/%([a-zA-Z%])/g, (match, format) => {
+				// If we encounter an escaped % then don't increase the array index
+				if (match === '%%') {
+					return '%';
+				}
+				index++;
+				const formatter = createDebug.formatters[format];
+				if (typeof formatter === 'function') {
+					const val = args[index];
+					match = formatter.call(self, val);
+
+					// Now we need to remove `args[index]` since it's inlined in the `format`
+					args.splice(index, 1);
+					index--;
+				}
+				return match;
+			});
+
+			// Apply env-specific formatting (colors, etc.)
+			createDebug.formatArgs.call(self, args);
+
+			const logFn = self.log || createDebug.log;
+			logFn.apply(self, args);
+		}
+
+		debug.namespace = namespace;
+		debug.useColors = createDebug.useColors();
+		debug.color = createDebug.selectColor(namespace);
+		debug.extend = extend;
+		debug.destroy = createDebug.destroy; // XXX Temporary. Will be removed in the next major release.
+
+		Object.defineProperty(debug, 'enabled', {
+			enumerable: true,
+			configurable: false,
+			get: () => {
+				if (enableOverride !== null) {
+					return enableOverride;
+				}
+				if (namespacesCache !== createDebug.namespaces) {
+					namespacesCache = createDebug.namespaces;
+					enabledCache = createDebug.enabled(namespace);
+				}
+
+				return enabledCache;
+			},
+			set: v => {
+				enableOverride = v;
+			}
+		});
+
+		// Env-specific initialization logic for debug instances
+		if (typeof createDebug.init === 'function') {
+			createDebug.init(debug);
+		}
+
+		return debug;
+	}
+
+	function extend(namespace, delimiter) {
+		const newDebug = createDebug(this.namespace + (typeof delimiter === 'undefined' ? ':' : delimiter) + namespace);
+		newDebug.log = this.log;
+		return newDebug;
+	}
+
+	/**
+	* Enables a debug mode by namespaces. This can include modes
+	* separated by a colon and wildcards.
+	*
+	* @param {String} namespaces
+	* @api public
+	*/
+	function enable(namespaces) {
+		createDebug.save(namespaces);
+		createDebug.namespaces = namespaces;
+
+		createDebug.names = [];
+		createDebug.skips = [];
+
+		const split = (typeof namespaces === 'string' ? namespaces : '')
+			.trim()
+			.replace(/\s+/g, ',')
+			.split(',')
+			.filter(Boolean);
+
+		for (const ns of split) {
+			if (ns[0] === '-') {
+				createDebug.skips.push(ns.slice(1));
+			} else {
+				createDebug.names.push(ns);
+			}
+		}
+	}
+
+	/**
+	 * Checks if the given string matches a namespace template, honoring
+	 * asterisks as wildcards.
+	 *
+	 * @param {String} search
+	 * @param {String} template
+	 * @return {Boolean}
+	 */
+	function matchesTemplate(search, template) {
+		let searchIndex = 0;
+		let templateIndex = 0;
+		let starIndex = -1;
+		let matchIndex = 0;
+
+		while (searchIndex < search.length) {
+			if (templateIndex < template.length && (template[templateIndex] === search[searchIndex] || template[templateIndex] === '*')) {
+				// Match character or proceed with wildcard
+				if (template[templateIndex] === '*') {
+					starIndex = templateIndex;
+					matchIndex = searchIndex;
+					templateIndex++; // Skip the '*'
+				} else {
+					searchIndex++;
+					templateIndex++;
+				}
+			} else if (starIndex !== -1) { // eslint-disable-line no-negated-condition
+				// Backtrack to the last '*' and try to match more characters
+				templateIndex = starIndex + 1;
+				matchIndex++;
+				searchIndex = matchIndex;
+			} else {
+				return false; // No match
+			}
+		}
+
+		// Handle trailing '*' in template
+		while (templateIndex < template.length && template[templateIndex] === '*') {
+			templateIndex++;
+		}
+
+		return templateIndex === template.length;
+	}
+
+	/**
+	* Disable debug output.
+	*
+	* @return {String} namespaces
+	* @api public
+	*/
+	function disable() {
+		const namespaces = [
+			...createDebug.names,
+			...createDebug.skips.map(namespace => '-' + namespace)
+		].join(',');
+		createDebug.enable('');
+		return namespaces;
+	}
+
+	/**
+	* Returns true if the given mode name is enabled, false otherwise.
+	*
+	* @param {String} name
+	* @return {Boolean}
+	* @api public
+	*/
+	function enabled(name) {
+		for (const skip of createDebug.skips) {
+			if (matchesTemplate(name, skip)) {
+				return false;
+			}
+		}
+
+		for (const ns of createDebug.names) {
+			if (matchesTemplate(name, ns)) {
+				return true;
+			}
+		}
+
+		return false;
+	}
+
+	/**
+	* Coerce `val`.
+	*
+	* @param {Mixed} val
+	* @return {Mixed}
+	* @api private
+	*/
+	function coerce(val) {
+		if (val instanceof Error) {
+			return val.stack || val.message;
+		}
+		return val;
+	}
+
+	/**
+	* XXX DO NOT USE. This is a temporary stub function.
+	* XXX It WILL be removed in the next major release.
+	*/
+	function destroy() {
+		console.warn('Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.');
+	}
+
+	createDebug.enable(createDebug.load());
+
+	return createDebug;
+}
+
+module.exports = setup;

node_modules/spdy-transport/node_modules/debug/src/index.js

@@ -0,0 +1,10 @@
+/**
+ * Detect Electron renderer / nwjs process, which is node, but we should
+ * treat as a browser.
+ */
+
+if (typeof process === 'undefined' || process.type === 'renderer' || process.browser === true || process.__nwjs) {
+	module.exports = require('./browser.js');
+} else {
+	module.exports = require('./node.js');
+}

node_modules/spdy-transport/node_modules/debug/src/node.js

@@ -0,0 +1,263 @@
+/**
+ * Module dependencies.
+ */
+
+const tty = require('tty');
+const util = require('util');
+
+/**
+ * This is the Node.js implementation of `debug()`.
+ */
+
+exports.init = init;
+exports.log = log;
+exports.formatArgs = formatArgs;
+exports.save = save;
+exports.load = load;
+exports.useColors = useColors;
+exports.destroy = util.deprecate(
+	() => {},
+	'Instance method `debug.destroy()` is deprecated and no longer does anything. It will be removed in the next major version of `debug`.'
+);
+
+/**
+ * Colors.
+ */
+
+exports.colors = [6, 2, 3, 4, 5, 1];
+
+try {
+	// Optional dependency (as in, doesn't need to be installed, NOT like optionalDependencies in package.json)
+	// eslint-disable-next-line import/no-extraneous-dependencies
+	const supportsColor = require('supports-color');
+
+	if (supportsColor && (supportsColor.stderr || supportsColor).level >= 2) {
+		exports.colors = [
+			20,
+			21,
+			26,
+			27,
+			32,
+			33,
+			38,
+			39,
+			40,
+			41,
+			42,
+			43,
+			44,
+			45,
+			56,
+			57,
+			62,
+			63,
+			68,
+			69,
+			74,
+			75,
+			76,
+			77,
+			78,
+			79,
+			80,
+			81,
+			92,
+			93,
+			98,
+			99,
+			112,
+			113,
+			128,
+			129,
+			134,
+			135,
+			148,
+			149,
+			160,
+			161,
+			162,
+			163,
+			164,
+			165,
+			166,
+			167,
+			168,
+			169,
+			170,
+			171,
+			172,
+			173,
+			178,
+			179,
+			184,
+			185,
+			196,
+			197,
+			198,
+			199,
+			200,
+			201,
+			202,
+			203,
+			204,
+			205,
+			206,
+			207,
+			208,
+			209,
+			214,
+			215,
+			220,
+			221
+		];
+	}
+} catch (error) {
+	// Swallow - we only care if `supports-color` is available; it doesn't have to be.
+}
+
+/**
+ * Build up the default `inspectOpts` object from the environment variables.
+ *
+ *   $ DEBUG_COLORS=no DEBUG_DEPTH=10 DEBUG_SHOW_HIDDEN=enabled node script.js
+ */
+
+exports.inspectOpts = Object.keys(process.env).filter(key => {
+	return /^debug_/i.test(key);
+}).reduce((obj, key) => {
+	// Camel-case
+	const prop = key
+		.substring(6)
+		.toLowerCase()
+		.replace(/_([a-z])/g, (_, k) => {
+			return k.toUpperCase();
+		});
+
+	// Coerce string value into JS value
+	let val = process.env[key];
+	if (/^(yes|on|true|enabled)$/i.test(val)) {
+		val = true;
+	} else if (/^(no|off|false|disabled)$/i.test(val)) {
+		val = false;
+	} else if (val === 'null') {
+		val = null;
+	} else {
+		val = Number(val);
+	}
+
+	obj[prop] = val;
+	return obj;
+}, {});
+
+/**
+ * Is stdout a TTY? Colored output is enabled when `true`.
+ */
+
+function useColors() {
+	return 'colors' in exports.inspectOpts ?
+		Boolean(exports.inspectOpts.colors) :
+		tty.isatty(process.stderr.fd);
+}
+
+/**
+ * Adds ANSI color escape codes if enabled.
+ *
+ * @api public
+ */
+
+function formatArgs(args) {
+	const {namespace: name, useColors} = this;
+
+	if (useColors) {
+		const c = this.color;
+		const colorCode = '\u001B[3' + (c < 8 ? c : '8;5;' + c);
+		const prefix = `  ${colorCode};1m${name} \u001B[0m`;
+
+		args[0] = prefix + args[0].split('\n').join('\n' + prefix);
+		args.push(colorCode + 'm+' + module.exports.humanize(this.diff) + '\u001B[0m');
+	} else {
+		args[0] = getDate() + name + ' ' + args[0];
+	}
+}
+
+function getDate() {
+	if (exports.inspectOpts.hideDate) {
+		return '';
+	}
+	return new Date().toISOString() + ' ';
+}
+
+/**
+ * Invokes `util.formatWithOptions()` with the specified arguments and writes to stderr.
+ */
+
+function log(...args) {
+	return process.stderr.write(util.formatWithOptions(exports.inspectOpts, ...args) + '\n');
+}
+
+/**
+ * Save `namespaces`.
+ *
+ * @param {String} namespaces
+ * @api private
+ */
+function save(namespaces) {
+	if (namespaces) {
+		process.env.DEBUG = namespaces;
+	} else {
+		// If you set a process.env field to null or undefined, it gets cast to the
+		// string 'null' or 'undefined'. Just delete instead.
+		delete process.env.DEBUG;
+	}
+}
+
+/**
+ * Load `namespaces`.
+ *
+ * @return {String} returns the previously persisted debug modes
+ * @api private
+ */
+
+function load() {
+	return process.env.DEBUG;
+}
+
+/**
+ * Init logic for `debug` instances.
+ *
+ * Create a new `inspectOpts` object in case `useColors` is set
+ * differently for a particular `debug` instance.
+ */
+
+function init(debug) {
+	debug.inspectOpts = {};
+
+	const keys = Object.keys(exports.inspectOpts);
+	for (let i = 0; i < keys.length; i++) {
+		debug.inspectOpts[keys[i]] = exports.inspectOpts[keys[i]];
+	}
+}
+
+module.exports = require('./common')(exports);
+
+const {formatters} = module.exports;
+
+/**
+ * Map %o to `util.inspect()`, all on a single line.
+ */
+
+formatters.o = function (v) {
+	this.inspectOpts.colors = this.useColors;
+	return util.inspect(v, this.inspectOpts)
+		.split('\n')
+		.map(str => str.trim())
+		.join(' ');
+};
+
+/**
+ * Map %O to `util.inspect()`, allowing multiple lines if needed.
+ */
+
+formatters.O = function (v) {
+	this.inspectOpts.colors = this.useColors;
+	return util.inspect(v, this.inspectOpts);
+};

node_modules/spdy-transport/node_modules/ms/index.js

@@ -0,0 +1,162 @@
+/**
+ * Helpers.
+ */
+
+var s = 1000;
+var m = s * 60;
+var h = m * 60;
+var d = h * 24;
+var w = d * 7;
+var y = d * 365.25;
+
+/**
+ * Parse or format the given `val`.
+ *
+ * Options:
+ *
+ *  - `long` verbose formatting [false]
+ *
+ * @param {String|Number} val
+ * @param {Object} [options]
+ * @throws {Error} throw an error if val is not a non-empty string or a number
+ * @return {String|Number}
+ * @api public
+ */
+
+module.exports = function (val, options) {
+  options = options || {};
+  var type = typeof val;
+  if (type === 'string' && val.length > 0) {
+    return parse(val);
+  } else if (type === 'number' && isFinite(val)) {
+    return options.long ? fmtLong(val) : fmtShort(val);
+  }
+  throw new Error(
+    'val is not a non-empty string or a valid number. val=' +
+      JSON.stringify(val)
+  );
+};
+
+/**
+ * Parse the given `str` and return milliseconds.
+ *
+ * @param {String} str
+ * @return {Number}
+ * @api private
+ */
+
+function parse(str) {
+  str = String(str);
+  if (str.length > 100) {
+    return;
+  }
+  var match = /^(-?(?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(
+    str
+  );
+  if (!match) {
+    return;
+  }
+  var n = parseFloat(match[1]);
+  var type = (match[2] || 'ms').toLowerCase();
+  switch (type) {
+    case 'years':
+    case 'year':
+    case 'yrs':
+    case 'yr':
+    case 'y':
+      return n * y;
+    case 'weeks':
+    case 'week':
+    case 'w':
+      return n * w;
+    case 'days':
+    case 'day':
+    case 'd':
+      return n * d;
+    case 'hours':
+    case 'hour':
+    case 'hrs':
+    case 'hr':
+    case 'h':
+      return n * h;
+    case 'minutes':
+    case 'minute':
+    case 'mins':
+    case 'min':
+    case 'm':
+      return n * m;
+    case 'seconds':
+    case 'second':
+    case 'secs':
+    case 'sec':
+    case 's':
+      return n * s;
+    case 'milliseconds':
+    case 'millisecond':
+    case 'msecs':
+    case 'msec':
+    case 'ms':
+      return n;
+    default:
+      return undefined;
+  }
+}
+
+/**
+ * Short format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function fmtShort(ms) {
+  var msAbs = Math.abs(ms);
+  if (msAbs >= d) {
+    return Math.round(ms / d) + 'd';
+  }
+  if (msAbs >= h) {
+    return Math.round(ms / h) + 'h';
+  }
+  if (msAbs >= m) {
+    return Math.round(ms / m) + 'm';
+  }
+  if (msAbs >= s) {
+    return Math.round(ms / s) + 's';
+  }
+  return ms + 'ms';
+}
+
+/**
+ * Long format for `ms`.
+ *
+ * @param {Number} ms
+ * @return {String}
+ * @api private
+ */
+
+function fmtLong(ms) {
+  var msAbs = Math.abs(ms);
+  if (msAbs >= d) {
+    return plural(ms, msAbs, d, 'day');
+  }
+  if (msAbs >= h) {
+    return plural(ms, msAbs, h, 'hour');
+  }
+  if (msAbs >= m) {
+    return plural(ms, msAbs, m, 'minute');
+  }
+  if (msAbs >= s) {
+    return plural(ms, msAbs, s, 'second');
+  }
+  return ms + ' ms';
+}
+
+/**
+ * Pluralization helper.
+ */
+
+function plural(ms, msAbs, n, name) {
+  var isPlural = msAbs >= n * 1.5;
+  return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : '');
+}

node_modules/spdy-transport/node_modules/ms/license.md

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2020 Vercel, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

node_modules/spdy-transport/node_modules/ms/package.json

@@ -0,0 +1,38 @@
+{
+  "name": "ms",
+  "version": "2.1.3",
+  "description": "Tiny millisecond conversion utility",
+  "repository": "vercel/ms",
+  "main": "./index",
+  "files": [
+    "index.js"
+  ],
+  "scripts": {
+    "precommit": "lint-staged",
+    "lint": "eslint lib/* bin/*",
+    "test": "mocha tests.js"
+  },
+  "eslintConfig": {
+    "extends": "eslint:recommended",
+    "env": {
+      "node": true,
+      "es6": true
+    }
+  },
+  "lint-staged": {
+    "*.js": [
+      "npm run lint",
+      "prettier --single-quote --write",
+      "git add"
+    ]
+  },
+  "license": "MIT",
+  "devDependencies": {
+    "eslint": "4.18.2",
+    "expect.js": "0.3.1",
+    "husky": "0.14.3",
+    "lint-staged": "5.0.0",
+    "mocha": "4.0.1",
+    "prettier": "2.0.5"
+  }
+}

node_modules/spdy-transport/node_modules/ms/readme.md

@@ -0,0 +1,59 @@
+# ms
+
+![CI](https://github.com/vercel/ms/workflows/CI/badge.svg)
+
+Use this package to easily convert various time formats to milliseconds.
+
+## Examples
+
+```js
+ms('2 days')  // 172800000
+ms('1d')      // 86400000
+ms('10h')     // 36000000
+ms('2.5 hrs') // 9000000
+ms('2h')      // 7200000
+ms('1m')      // 60000
+ms('5s')      // 5000
+ms('1y')      // 31557600000
+ms('100')     // 100
+ms('-3 days') // -259200000
+ms('-1h')     // -3600000
+ms('-200')    // -200
+```
+
+### Convert from Milliseconds
+
+```js
+ms(60000)             // "1m"
+ms(2 * 60000)         // "2m"
+ms(-3 * 60000)        // "-3m"
+ms(ms('10 hours'))    // "10h"
+```
+
+### Time Format Written-Out
+
+```js
+ms(60000, { long: true })             // "1 minute"
+ms(2 * 60000, { long: true })         // "2 minutes"
+ms(-3 * 60000, { long: true })        // "-3 minutes"
+ms(ms('10 hours'), { long: true })    // "10 hours"
+```
+
+## Features
+
+- Works both in [Node.js](https://nodejs.org) and in the browser
+- If a number is supplied to `ms`, a string with a unit is returned
+- If a string that contains the number is supplied, it returns it as a number (e.g.: it returns `100` for `'100'`)
+- If you pass a string with a number and a valid unit, the number of equivalent milliseconds is returned
+
+## Related Packages
+
+- [ms.macro](https://github.com/knpwrs/ms.macro) - Run `ms` as a macro at build-time.
+
+## Caught a Bug?
+
+1. [Fork](https://help.github.com/articles/fork-a-repo/) this repository to your own GitHub account and then [clone](https://help.github.com/articles/cloning-a-repository/) it to your local device
+2. Link the package to the global module directory: `npm link`
+3. Within the module you want to test your local development instance of ms, just link it to the dependencies: `npm link ms`. Instead of the default one from npm, Node.js will now use your clone of ms!
+
+As always, you can run the tests using: `npm test`

node_modules/spdy-transport/package.json

@@ -0,0 +1,43 @@
+{
+  "name": "spdy-transport",
+  "version": "3.0.0",
+  "main": "lib/spdy-transport",
+  "description": "SPDY v2, v3, v3.1 and HTTP2 transport",
+  "license": "MIT",
+  "keywords": [
+    "spdy",
+    "http2",
+    "transport"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/spdy-http2/spdy-transport.git"
+  },
+  "homepage": "https://github.com/spdy-http2/spdy-transport",
+  "author": "Fedor Indutny <fedor@indutny.com>",
+  "dependencies": {
+    "debug": "^4.1.0",
+    "detect-node": "^2.0.4",
+    "hpack.js": "^2.1.6",
+    "obuf": "^1.1.2",
+    "readable-stream": "^3.0.6",
+    "wbuf": "^1.7.3"
+  },
+  "devDependencies": {
+    "async": "^2.6.1",
+    "istanbul": "^0.4.5",
+    "mocha": "^5.2.0",
+    "pre-commit": "^1.2.2",
+    "standard": "^12.0.1",
+    "stream-pair": "^1.0.3"
+  },
+  "scripts": {
+    "lint": "standard",
+    "test": "mocha --reporter=spec test/**/*-test.js test/**/**/*-test.js",
+    "coverage": "istanbul cover node_modules/.bin/_mocha -- --reporter=spec test/**/*-test.js test/**/**/*-test.js"
+  },
+  "pre-commit": [
+    "lint",
+    "test"
+  ]
+}