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/*! * Socket.IO v2.3.0 * (c) 2014-2019 Guillermo Rauch * Released under the MIT License. */ (function webpackUniversalModuleDefinition(root, factory) { if(typeof exports === 'object' && typeof module === 'object') module.exports = factory(); else if(typeof define === 'function' && define.amd) define([], factory); else if(typeof exports === 'object') exports["io"] = factory(); else root["io"] = factory(); })(this, function() { return /******/ (function(modules) { // webpackBootstrap
/******/ // The module cache
/******/ var installedModules = {}; /******/ /******/ // The require function
/******/ function __webpack_require__(moduleId) { /******/ /******/ // Check if module is in cache
/******/ if(installedModules[moduleId]) /******/ return installedModules[moduleId].exports; /******/ /******/ // Create a new module (and put it into the cache)
/******/ var module = installedModules[moduleId] = { /******/ exports: {}, /******/ id: moduleId, /******/ loaded: false /******/ }; /******/ /******/ // Execute the module function
/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__); /******/ /******/ // Flag the module as loaded
/******/ module.loaded = true; /******/ /******/ // Return the exports of the module
/******/ return module.exports; /******/ } /******/ /******/ /******/ // expose the modules object (__webpack_modules__)
/******/ __webpack_require__.m = modules; /******/ /******/ // expose the module cache
/******/ __webpack_require__.c = installedModules; /******/ /******/ // __webpack_public_path__
/******/ __webpack_require__.p = ""; /******/ /******/ // Load entry module and return exports
/******/ return __webpack_require__(0); /******/ }) /************************************************************************/ /******/ ([ /* 0 */ /***/ (function(module, exports, __webpack_require__) {
'use strict'; var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; /** * Module dependencies. */ var url = __webpack_require__(1); var parser = __webpack_require__(4); var Manager = __webpack_require__(9); var debug = __webpack_require__(3)('socket.io-client'); /** * Module exports. */ module.exports = exports = lookup; /** * Managers cache. */ var cache = exports.managers = {}; /** * Looks up an existing `Manager` for multiplexing. * If the user summons: * * `io('http://localhost/a');` * `io('http://localhost/b');` * * We reuse the existing instance based on same scheme/port/host, * and we initialize sockets for each namespace. * * @api public */ function lookup(uri, opts) { if ((typeof uri === 'undefined' ? 'undefined' : _typeof(uri)) === 'object') { opts = uri; uri = undefined; } opts = opts || {}; var parsed = url(uri); var source = parsed.source; var id = parsed.id; var path = parsed.path; var sameNamespace = cache[id] && path in cache[id].nsps; var newConnection = opts.forceNew || opts['force new connection'] || false === opts.multiplex || sameNamespace; var io; if (newConnection) { io = Manager(source, opts); } else { if (!cache[id]) { cache[id] = Manager(source, opts); } io = cache[id]; } if (parsed.query && !opts.query) { opts.query = parsed.query; } return io.socket(parsed.path, opts); } /** * Protocol version. * * @api public */ exports.protocol = parser.protocol; /** * `connect`. * * @param {String} uri * @api public */ exports.connect = lookup; /** * Expose constructors for standalone build. * * @api public */ exports.Manager = __webpack_require__(9); exports.Socket = __webpack_require__(33);
/***/ }), /* 1 */ /***/ (function(module, exports, __webpack_require__) {
'use strict'; /** * Module dependencies. */ var parseuri = __webpack_require__(2); var debug = __webpack_require__(3)('socket.io-client:url'); /** * Module exports. */ module.exports = url; /** * URL parser. * * @param {String} url * @param {Object} An object meant to mimic window.location. * Defaults to window.location. * @api public */ function url(uri, loc) { var obj = uri; // default to window.location
loc = loc || typeof location !== 'undefined' && location; if (null == uri) uri = loc.protocol + '//' + loc.host; // relative path support
if ('string' === typeof uri) { if ('/' === uri.charAt(0)) { if ('/' === uri.charAt(1)) { uri = loc.protocol + uri; } else { uri = loc.host + uri; } } if (!/^(https?|wss?):\/\//.test(uri)) { if ('undefined' !== typeof loc) { uri = loc.protocol + '//' + uri; } else { uri = 'https://' + uri; } } // parse
obj = parseuri(uri); } // make sure we treat `localhost:80` and `localhost` equally
if (!obj.port) { if (/^(http|ws)$/.test(obj.protocol)) { obj.port = '80'; } else if (/^(http|ws)s$/.test(obj.protocol)) { obj.port = '443'; } } obj.path = obj.path || '/'; var ipv6 = obj.host.indexOf(':') !== -1; var host = ipv6 ? '[' + obj.host + ']' : obj.host; // define unique id
obj.id = obj.protocol + '://' + host + ':' + obj.port; // define href
obj.href = obj.protocol + '://' + host + (loc && loc.port === obj.port ? '' : ':' + obj.port); return obj; }
/***/ }), /* 2 */ /***/ (function(module, exports) {
/** * Parses an URI * * @author Steven Levithan <stevenlevithan.com> (MIT license) * @api private */ var re = /^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/; var parts = [ 'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor' ]; module.exports = function parseuri(str) { var src = str, b = str.indexOf('['), e = str.indexOf(']'); if (b != -1 && e != -1) { str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length); } var m = re.exec(str || ''), uri = {}, i = 14; while (i--) { uri[parts[i]] = m[i] || ''; } if (b != -1 && e != -1) { uri.source = src; uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':'); uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':'); uri.ipv6uri = true; } return uri; };
/***/ }), /* 3 */ /***/ (function(module, exports) {
"use strict"; module.exports = function () { return function () {}; };
/***/ }), /* 4 */ /***/ (function(module, exports, __webpack_require__) {
/** * Module dependencies. */ var debug = __webpack_require__(3)('socket.io-parser'); var Emitter = __webpack_require__(5); var binary = __webpack_require__(6); var isArray = __webpack_require__(7); var isBuf = __webpack_require__(8); /** * Protocol version. * * @api public */ exports.protocol = 4; /** * Packet types. * * @api public */ exports.types = [ 'CONNECT', 'DISCONNECT', 'EVENT', 'ACK', 'ERROR', 'BINARY_EVENT', 'BINARY_ACK' ]; /** * Packet type `connect`. * * @api public */ exports.CONNECT = 0; /** * Packet type `disconnect`. * * @api public */ exports.DISCONNECT = 1; /** * Packet type `event`. * * @api public */ exports.EVENT = 2; /** * Packet type `ack`. * * @api public */ exports.ACK = 3; /** * Packet type `error`. * * @api public */ exports.ERROR = 4; /** * Packet type 'binary event' * * @api public */ exports.BINARY_EVENT = 5; /** * Packet type `binary ack`. For acks with binary arguments. * * @api public */ exports.BINARY_ACK = 6; /** * Encoder constructor. * * @api public */ exports.Encoder = Encoder; /** * Decoder constructor. * * @api public */ exports.Decoder = Decoder; /** * A socket.io Encoder instance * * @api public */ function Encoder() {} var ERROR_PACKET = exports.ERROR + '"encode error"'; /** * Encode a packet as a single string if non-binary, or as a * buffer sequence, depending on packet type. * * @param {Object} obj - packet object * @param {Function} callback - function to handle encodings (likely engine.write) * @return Calls callback with Array of encodings * @api public */ Encoder.prototype.encode = function(obj, callback){ if (exports.BINARY_EVENT === obj.type || exports.BINARY_ACK === obj.type) { encodeAsBinary(obj, callback); } else { var encoding = encodeAsString(obj); callback([encoding]); } }; /** * Encode packet as string. * * @param {Object} packet * @return {String} encoded * @api private */ function encodeAsString(obj) { // first is type
var str = '' + obj.type; // attachments if we have them
if (exports.BINARY_EVENT === obj.type || exports.BINARY_ACK === obj.type) { str += obj.attachments + '-'; } // if we have a namespace other than `/`
// we append it followed by a comma `,`
if (obj.nsp && '/' !== obj.nsp) { str += obj.nsp + ','; } // immediately followed by the id
if (null != obj.id) { str += obj.id; } // json data
if (null != obj.data) { var payload = tryStringify(obj.data); if (payload !== false) { str += payload; } else { return ERROR_PACKET; } } return str; } function tryStringify(str) { try { return JSON.stringify(str); } catch(e){ return false; } } /** * Encode packet as 'buffer sequence' by removing blobs, and * deconstructing packet into object with placeholders and * a list of buffers. * * @param {Object} packet * @return {Buffer} encoded * @api private */ function encodeAsBinary(obj, callback) { function writeEncoding(bloblessData) { var deconstruction = binary.deconstructPacket(bloblessData); var pack = encodeAsString(deconstruction.packet); var buffers = deconstruction.buffers; buffers.unshift(pack); // add packet info to beginning of data list
callback(buffers); // write all the buffers
} binary.removeBlobs(obj, writeEncoding); } /** * A socket.io Decoder instance * * @return {Object} decoder * @api public */ function Decoder() { this.reconstructor = null; } /** * Mix in `Emitter` with Decoder. */ Emitter(Decoder.prototype); /** * Decodes an encoded packet string into packet JSON. * * @param {String} obj - encoded packet * @return {Object} packet * @api public */ Decoder.prototype.add = function(obj) { var packet; if (typeof obj === 'string') { packet = decodeString(obj); if (exports.BINARY_EVENT === packet.type || exports.BINARY_ACK === packet.type) { // binary packet's json
this.reconstructor = new BinaryReconstructor(packet); // no attachments, labeled binary but no binary data to follow
if (this.reconstructor.reconPack.attachments === 0) { this.emit('decoded', packet); } } else { // non-binary full packet
this.emit('decoded', packet); } } else if (isBuf(obj) || obj.base64) { // raw binary data
if (!this.reconstructor) { throw new Error('got binary data when not reconstructing a packet'); } else { packet = this.reconstructor.takeBinaryData(obj); if (packet) { // received final buffer
this.reconstructor = null; this.emit('decoded', packet); } } } else { throw new Error('Unknown type: ' + obj); } }; /** * Decode a packet String (JSON data) * * @param {String} str * @return {Object} packet * @api private */ function decodeString(str) { var i = 0; // look up type
var p = { type: Number(str.charAt(0)) }; if (null == exports.types[p.type]) { return error('unknown packet type ' + p.type); } // look up attachments if type binary
if (exports.BINARY_EVENT === p.type || exports.BINARY_ACK === p.type) { var buf = ''; while (str.charAt(++i) !== '-') { buf += str.charAt(i); if (i == str.length) break; } if (buf != Number(buf) || str.charAt(i) !== '-') { throw new Error('Illegal attachments'); } p.attachments = Number(buf); } // look up namespace (if any)
if ('/' === str.charAt(i + 1)) { p.nsp = ''; while (++i) { var c = str.charAt(i); if (',' === c) break; p.nsp += c; if (i === str.length) break; } } else { p.nsp = '/'; } // look up id
var next = str.charAt(i + 1); if ('' !== next && Number(next) == next) { p.id = ''; while (++i) { var c = str.charAt(i); if (null == c || Number(c) != c) { --i; break; } p.id += str.charAt(i); if (i === str.length) break; } p.id = Number(p.id); } // look up json data
if (str.charAt(++i)) { var payload = tryParse(str.substr(i)); var isPayloadValid = payload !== false && (p.type === exports.ERROR || isArray(payload)); if (isPayloadValid) { p.data = payload; } else { return error('invalid payload'); } } return p; } function tryParse(str) { try { return JSON.parse(str); } catch(e){ return false; } } /** * Deallocates a parser's resources * * @api public */ Decoder.prototype.destroy = function() { if (this.reconstructor) { this.reconstructor.finishedReconstruction(); } }; /** * A manager of a binary event's 'buffer sequence'. Should * be constructed whenever a packet of type BINARY_EVENT is * decoded. * * @param {Object} packet * @return {BinaryReconstructor} initialized reconstructor * @api private */ function BinaryReconstructor(packet) { this.reconPack = packet; this.buffers = []; } /** * Method to be called when binary data received from connection * after a BINARY_EVENT packet. * * @param {Buffer | ArrayBuffer} binData - the raw binary data received * @return {null | Object} returns null if more binary data is expected or * a reconstructed packet object if all buffers have been received. * @api private */ BinaryReconstructor.prototype.takeBinaryData = function(binData) { this.buffers.push(binData); if (this.buffers.length === this.reconPack.attachments) { // done with buffer list
var packet = binary.reconstructPacket(this.reconPack, this.buffers); this.finishedReconstruction(); return packet; } return null; }; /** * Cleans up binary packet reconstruction variables. * * @api private */ BinaryReconstructor.prototype.finishedReconstruction = function() { this.reconPack = null; this.buffers = []; }; function error(msg) { return { type: exports.ERROR, data: 'parser error: ' + msg }; }
/***/ }), /* 5 */ /***/ (function(module, exports, __webpack_require__) {
/** * Expose `Emitter`. */ if (true) { module.exports = Emitter; } /** * Initialize a new `Emitter`. * * @api public */ function Emitter(obj) { if (obj) return mixin(obj); }; /** * Mixin the emitter properties. * * @param {Object} obj * @return {Object} * @api private */ function mixin(obj) { for (var key in Emitter.prototype) { obj[key] = Emitter.prototype[key]; } return obj; } /** * Listen on the given `event` with `fn`. * * @param {String} event * @param {Function} fn * @return {Emitter} * @api public */ Emitter.prototype.on = Emitter.prototype.addEventListener = function(event, fn){ this._callbacks = this._callbacks || {}; (this._callbacks['$' + event] = this._callbacks['$' + event] || []) .push(fn); return this; }; /** * Adds an `event` listener that will be invoked a single * time then automatically removed. * * @param {String} event * @param {Function} fn * @return {Emitter} * @api public */ Emitter.prototype.once = function(event, fn){ function on() { this.off(event, on); fn.apply(this, arguments); } on.fn = fn; this.on(event, on); return this; }; /** * Remove the given callback for `event` or all * registered callbacks. * * @param {String} event * @param {Function} fn * @return {Emitter} * @api public */ Emitter.prototype.off = Emitter.prototype.removeListener = Emitter.prototype.removeAllListeners = Emitter.prototype.removeEventListener = function(event, fn){ this._callbacks = this._callbacks || {}; // all
if (0 == arguments.length) { this._callbacks = {}; return this; } // specific event
var callbacks = this._callbacks['$' + event]; if (!callbacks) return this; // remove all handlers
if (1 == arguments.length) { delete this._callbacks['$' + event]; return this; } // remove specific handler
var cb; for (var i = 0; i < callbacks.length; i++) { cb = callbacks[i]; if (cb === fn || cb.fn === fn) { callbacks.splice(i, 1); break; } } return this; }; /** * Emit `event` with the given args. * * @param {String} event * @param {Mixed} ... * @return {Emitter} */ Emitter.prototype.emit = function(event){ this._callbacks = this._callbacks || {}; var args = [].slice.call(arguments, 1) , callbacks = this._callbacks['$' + event]; if (callbacks) { callbacks = callbacks.slice(0); for (var i = 0, len = callbacks.length; i < len; ++i) { callbacks[i].apply(this, args); } } return this; }; /** * Return array of callbacks for `event`. * * @param {String} event * @return {Array} * @api public */ Emitter.prototype.listeners = function(event){ this._callbacks = this._callbacks || {}; return this._callbacks['$' + event] || []; }; /** * Check if this emitter has `event` handlers. * * @param {String} event * @return {Boolean} * @api public */ Emitter.prototype.hasListeners = function(event){ return !! this.listeners(event).length; };
/***/ }), /* 6 */ /***/ (function(module, exports, __webpack_require__) {
/*global Blob,File*/ /** * Module requirements */ var isArray = __webpack_require__(7); var isBuf = __webpack_require__(8); var toString = Object.prototype.toString; var withNativeBlob = typeof Blob === 'function' || (typeof Blob !== 'undefined' && toString.call(Blob) === '[object BlobConstructor]'); var withNativeFile = typeof File === 'function' || (typeof File !== 'undefined' && toString.call(File) === '[object FileConstructor]'); /** * Replaces every Buffer | ArrayBuffer in packet with a numbered placeholder. * Anything with blobs or files should be fed through removeBlobs before coming * here. * * @param {Object} packet - socket.io event packet * @return {Object} with deconstructed packet and list of buffers * @api public */ exports.deconstructPacket = function(packet) { var buffers = []; var packetData = packet.data; var pack = packet; pack.data = _deconstructPacket(packetData, buffers); pack.attachments = buffers.length; // number of binary 'attachments'
return {packet: pack, buffers: buffers}; }; function _deconstructPacket(data, buffers) { if (!data) return data; if (isBuf(data)) { var placeholder = { _placeholder: true, num: buffers.length }; buffers.push(data); return placeholder; } else if (isArray(data)) { var newData = new Array(data.length); for (var i = 0; i < data.length; i++) { newData[i] = _deconstructPacket(data[i], buffers); } return newData; } else if (typeof data === 'object' && !(data instanceof Date)) { var newData = {}; for (var key in data) { newData[key] = _deconstructPacket(data[key], buffers); } return newData; } return data; } /** * Reconstructs a binary packet from its placeholder packet and buffers * * @param {Object} packet - event packet with placeholders * @param {Array} buffers - binary buffers to put in placeholder positions * @return {Object} reconstructed packet * @api public */ exports.reconstructPacket = function(packet, buffers) { packet.data = _reconstructPacket(packet.data, buffers); packet.attachments = undefined; // no longer useful
return packet; }; function _reconstructPacket(data, buffers) { if (!data) return data; if (data && data._placeholder) { return buffers[data.num]; // appropriate buffer (should be natural order anyway)
} else if (isArray(data)) { for (var i = 0; i < data.length; i++) { data[i] = _reconstructPacket(data[i], buffers); } } else if (typeof data === 'object') { for (var key in data) { data[key] = _reconstructPacket(data[key], buffers); } } return data; } /** * Asynchronously removes Blobs or Files from data via * FileReader's readAsArrayBuffer method. Used before encoding * data as msgpack. Calls callback with the blobless data. * * @param {Object} data * @param {Function} callback * @api private */ exports.removeBlobs = function(data, callback) { function _removeBlobs(obj, curKey, containingObject) { if (!obj) return obj; // convert any blob
if ((withNativeBlob && obj instanceof Blob) || (withNativeFile && obj instanceof File)) { pendingBlobs++; // async filereader
var fileReader = new FileReader(); fileReader.onload = function() { // this.result == arraybuffer
if (containingObject) { containingObject[curKey] = this.result; } else { bloblessData = this.result; } // if nothing pending its callback time
if(! --pendingBlobs) { callback(bloblessData); } }; fileReader.readAsArrayBuffer(obj); // blob -> arraybuffer
} else if (isArray(obj)) { // handle array
for (var i = 0; i < obj.length; i++) { _removeBlobs(obj[i], i, obj); } } else if (typeof obj === 'object' && !isBuf(obj)) { // and object
for (var key in obj) { _removeBlobs(obj[key], key, obj); } } } var pendingBlobs = 0; var bloblessData = data; _removeBlobs(bloblessData); if (!pendingBlobs) { callback(bloblessData); } };
/***/ }), /* 7 */ /***/ (function(module, exports) {
var toString = {}.toString; module.exports = Array.isArray || function (arr) { return toString.call(arr) == '[object Array]'; };
/***/ }), /* 8 */ /***/ (function(module, exports) {
module.exports = isBuf; var withNativeBuffer = typeof Buffer === 'function' && typeof Buffer.isBuffer === 'function'; var withNativeArrayBuffer = typeof ArrayBuffer === 'function'; var isView = function (obj) { return typeof ArrayBuffer.isView === 'function' ? ArrayBuffer.isView(obj) : (obj.buffer instanceof ArrayBuffer); }; /** * Returns true if obj is a buffer or an arraybuffer. * * @api private */ function isBuf(obj) { return (withNativeBuffer && Buffer.isBuffer(obj)) || (withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj))); }
/***/ }), /* 9 */ /***/ (function(module, exports, __webpack_require__) {
'use strict'; var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; /** * Module dependencies. */ var eio = __webpack_require__(10); var Socket = __webpack_require__(33); var Emitter = __webpack_require__(5); var parser = __webpack_require__(4); var on = __webpack_require__(35); var bind = __webpack_require__(36); var debug = __webpack_require__(3)('socket.io-client:manager'); var indexOf = __webpack_require__(32); var Backoff = __webpack_require__(37); /** * IE6+ hasOwnProperty */ var has = Object.prototype.hasOwnProperty; /** * Module exports */ module.exports = Manager; /** * `Manager` constructor. * * @param {String} engine instance or engine uri/opts * @param {Object} options * @api public */ function Manager(uri, opts) { if (!(this instanceof Manager)) return new Manager(uri, opts); if (uri && 'object' === (typeof uri === 'undefined' ? 'undefined' : _typeof(uri))) { opts = uri; uri = undefined; } opts = opts || {}; opts.path = opts.path || '/socket.io'; this.nsps = {}; this.subs = []; this.opts = opts; this.reconnection(opts.reconnection !== false); this.reconnectionAttempts(opts.reconnectionAttempts || Infinity); this.reconnectionDelay(opts.reconnectionDelay || 1000); this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000); this.randomizationFactor(opts.randomizationFactor || 0.5); this.backoff = new Backoff({ min: this.reconnectionDelay(), max: this.reconnectionDelayMax(), jitter: this.randomizationFactor() }); this.timeout(null == opts.timeout ? 20000 : opts.timeout); this.readyState = 'closed'; this.uri = uri; this.connecting = []; this.lastPing = null; this.encoding = false; this.packetBuffer = []; var _parser = opts.parser || parser; this.encoder = new _parser.Encoder(); this.decoder = new _parser.Decoder(); this.autoConnect = opts.autoConnect !== false; if (this.autoConnect) this.open(); } /** * Propagate given event to sockets and emit on `this` * * @api private */ Manager.prototype.emitAll = function () { this.emit.apply(this, arguments); for (var nsp in this.nsps) { if (has.call(this.nsps, nsp)) { this.nsps[nsp].emit.apply(this.nsps[nsp], arguments); } } }; /** * Update `socket.id` of all sockets * * @api private */ Manager.prototype.updateSocketIds = function () { for (var nsp in this.nsps) { if (has.call(this.nsps, nsp)) { this.nsps[nsp].id = this.generateId(nsp); } } }; /** * generate `socket.id` for the given `nsp` * * @param {String} nsp * @return {String} * @api private */ Manager.prototype.generateId = function (nsp) { return (nsp === '/' ? '' : nsp + '#') + this.engine.id; }; /** * Mix in `Emitter`. */ Emitter(Manager.prototype); /** * Sets the `reconnection` config. * * @param {Boolean} true/false if it should automatically reconnect * @return {Manager} self or value * @api public */ Manager.prototype.reconnection = function (v) { if (!arguments.length) return this._reconnection; this._reconnection = !!v; return this; }; /** * Sets the reconnection attempts config. * * @param {Number} max reconnection attempts before giving up * @return {Manager} self or value * @api public */ Manager.prototype.reconnectionAttempts = function (v) { if (!arguments.length) return this._reconnectionAttempts; this._reconnectionAttempts = v; return this; }; /** * Sets the delay between reconnections. * * @param {Number} delay * @return {Manager} self or value * @api public */ Manager.prototype.reconnectionDelay = function (v) { if (!arguments.length) return this._reconnectionDelay; this._reconnectionDelay = v; this.backoff && this.backoff.setMin(v); return this; }; Manager.prototype.randomizationFactor = function (v) { if (!arguments.length) return this._randomizationFactor; this._randomizationFactor = v; this.backoff && this.backoff.setJitter(v); return this; }; /** * Sets the maximum delay between reconnections. * * @param {Number} delay * @return {Manager} self or value * @api public */ Manager.prototype.reconnectionDelayMax = function (v) { if (!arguments.length) return this._reconnectionDelayMax; this._reconnectionDelayMax = v; this.backoff && this.backoff.setMax(v); return this; }; /** * Sets the connection timeout. `false` to disable * * @return {Manager} self or value * @api public */ Manager.prototype.timeout = function (v) { if (!arguments.length) return this._timeout; this._timeout = v; return this; }; /** * Starts trying to reconnect if reconnection is enabled and we have not * started reconnecting yet * * @api private */ Manager.prototype.maybeReconnectOnOpen = function () { // Only try to reconnect if it's the first time we're connecting
if (!this.reconnecting && this._reconnection && this.backoff.attempts === 0) { // keeps reconnection from firing twice for the same reconnection loop
this.reconnect(); } }; /** * Sets the current transport `socket`. * * @param {Function} optional, callback * @return {Manager} self * @api public */ Manager.prototype.open = Manager.prototype.connect = function (fn, opts) { if (~this.readyState.indexOf('open')) return this; this.engine = eio(this.uri, this.opts); var socket = this.engine; var self = this; this.readyState = 'opening'; this.skipReconnect = false; // emit `open`
var openSub = on(socket, 'open', function () { self.onopen(); fn && fn(); }); // emit `connect_error`
var errorSub = on(socket, 'error', function (data) { self.cleanup(); self.readyState = 'closed'; self.emitAll('connect_error', data); if (fn) { var err = new Error('Connection error'); err.data = data; fn(err); } else { // Only do this if there is no fn to handle the error
self.maybeReconnectOnOpen(); } }); // emit `connect_timeout`
if (false !== this._timeout) { var timeout = this._timeout; // set timer
var timer = setTimeout(function () { openSub.destroy(); socket.close(); socket.emit('error', 'timeout'); self.emitAll('connect_timeout', timeout); }, timeout); this.subs.push({ destroy: function destroy() { clearTimeout(timer); } }); } this.subs.push(openSub); this.subs.push(errorSub); return this; }; /** * Called upon transport open. * * @api private */ Manager.prototype.onopen = function () { // clear old subs
this.cleanup(); // mark as open
this.readyState = 'open'; this.emit('open'); // add new subs
var socket = this.engine; this.subs.push(on(socket, 'data', bind(this, 'ondata'))); this.subs.push(on(socket, 'ping', bind(this, 'onping'))); this.subs.push(on(socket, 'pong', bind(this, 'onpong'))); this.subs.push(on(socket, 'error', bind(this, 'onerror'))); this.subs.push(on(socket, 'close', bind(this, 'onclose'))); this.subs.push(on(this.decoder, 'decoded', bind(this, 'ondecoded'))); }; /** * Called upon a ping. * * @api private */ Manager.prototype.onping = function () { this.lastPing = new Date(); this.emitAll('ping'); }; /** * Called upon a packet. * * @api private */ Manager.prototype.onpong = function () { this.emitAll('pong', new Date() - this.lastPing); }; /** * Called with data. * * @api private */ Manager.prototype.ondata = function (data) { this.decoder.add(data); }; /** * Called when parser fully decodes a packet. * * @api private */ Manager.prototype.ondecoded = function (packet) { this.emit('packet', packet); }; /** * Called upon socket error. * * @api private */ Manager.prototype.onerror = function (err) { this.emitAll('error', err); }; /** * Creates a new socket for the given `nsp`. * * @return {Socket} * @api public */ Manager.prototype.socket = function (nsp, opts) { var socket = this.nsps[nsp]; if (!socket) { socket = new Socket(this, nsp, opts); this.nsps[nsp] = socket; var self = this; socket.on('connecting', onConnecting); socket.on('connect', function () { socket.id = self.generateId(nsp); }); if (this.autoConnect) { // manually call here since connecting event is fired before listening
onConnecting(); } } function onConnecting() { if (!~indexOf(self.connecting, socket)) { self.connecting.push(socket); } } return socket; }; /** * Called upon a socket close. * * @param {Socket} socket */ Manager.prototype.destroy = function (socket) { var index = indexOf(this.connecting, socket); if (~index) this.connecting.splice(index, 1); if (this.connecting.length) return; this.close(); }; /** * Writes a packet. * * @param {Object} packet * @api private */ Manager.prototype.packet = function (packet) { var self = this; if (packet.query && packet.type === 0) packet.nsp += '?' + packet.query; if (!self.encoding) { // encode, then write to engine with result
self.encoding = true; this.encoder.encode(packet, function (encodedPackets) { for (var i = 0; i < encodedPackets.length; i++) { self.engine.write(encodedPackets[i], packet.options); } self.encoding = false; self.processPacketQueue(); }); } else { // add packet to the queue
self.packetBuffer.push(packet); } }; /** * If packet buffer is non-empty, begins encoding the * next packet in line. * * @api private */ Manager.prototype.processPacketQueue = function () { if (this.packetBuffer.length > 0 && !this.encoding) { var pack = this.packetBuffer.shift(); this.packet(pack); } }; /** * Clean up transport subscriptions and packet buffer. * * @api private */ Manager.prototype.cleanup = function () { var subsLength = this.subs.length; for (var i = 0; i < subsLength; i++) { var sub = this.subs.shift(); sub.destroy(); } this.packetBuffer = []; this.encoding = false; this.lastPing = null; this.decoder.destroy(); }; /** * Close the current socket. * * @api private */ Manager.prototype.close = Manager.prototype.disconnect = function () { this.skipReconnect = true; this.reconnecting = false; if ('opening' === this.readyState) { // `onclose` will not fire because
// an open event never happened
this.cleanup(); } this.backoff.reset(); this.readyState = 'closed'; if (this.engine) this.engine.close(); }; /** * Called upon engine close. * * @api private */ Manager.prototype.onclose = function (reason) { this.cleanup(); this.backoff.reset(); this.readyState = 'closed'; this.emit('close', reason); if (this._reconnection && !this.skipReconnect) { this.reconnect(); } }; /** * Attempt a reconnection. * * @api private */ Manager.prototype.reconnect = function () { if (this.reconnecting || this.skipReconnect) return this; var self = this; if (this.backoff.attempts >= this._reconnectionAttempts) { this.backoff.reset(); this.emitAll('reconnect_failed'); this.reconnecting = false; } else { var delay = this.backoff.duration(); this.reconnecting = true; var timer = setTimeout(function () { if (self.skipReconnect) return; self.emitAll('reconnect_attempt', self.backoff.attempts); self.emitAll('reconnecting', self.backoff.attempts); // check again for the case socket closed in above events
if (self.skipReconnect) return; self.open(function (err) { if (err) { self.reconnecting = false; self.reconnect(); self.emitAll('reconnect_error', err.data); } else { self.onreconnect(); } }); }, delay); this.subs.push({ destroy: function destroy() { clearTimeout(timer); } }); } }; /** * Called upon successful reconnect. * * @api private */ Manager.prototype.onreconnect = function () { var attempt = this.backoff.attempts; this.reconnecting = false; this.backoff.reset(); this.updateSocketIds(); this.emitAll('reconnect', attempt); };
/***/ }), /* 10 */ /***/ (function(module, exports, __webpack_require__) {
module.exports = __webpack_require__(11); /** * Exports parser * * @api public * */ module.exports.parser = __webpack_require__(18);
/***/ }), /* 11 */ /***/ (function(module, exports, __webpack_require__) {
/** * Module dependencies. */ var transports = __webpack_require__(12); var Emitter = __webpack_require__(5); var debug = __webpack_require__(3)('engine.io-client:socket'); var index = __webpack_require__(32); var parser = __webpack_require__(18); var parseuri = __webpack_require__(2); var parseqs = __webpack_require__(26); /** * Module exports. */ module.exports = Socket; /** * Socket constructor. * * @param {String|Object} uri or options * @param {Object} options * @api public */ function Socket (uri, opts) { if (!(this instanceof Socket)) return new Socket(uri, opts); opts = opts || {}; if (uri && 'object' === typeof uri) { opts = uri; uri = null; } if (uri) { uri = parseuri(uri); opts.hostname = uri.host; opts.secure = uri.protocol === 'https' || uri.protocol === 'wss'; opts.port = uri.port; if (uri.query) opts.query = uri.query; } else if (opts.host) { opts.hostname = parseuri(opts.host).host; } this.secure = null != opts.secure ? opts.secure : (typeof location !== 'undefined' && 'https:' === location.protocol); if (opts.hostname && !opts.port) { // if no port is specified manually, use the protocol default
opts.port = this.secure ? '443' : '80'; } this.agent = opts.agent || false; this.hostname = opts.hostname || (typeof location !== 'undefined' ? location.hostname : 'localhost'); this.port = opts.port || (typeof location !== 'undefined' && location.port ? location.port : (this.secure ? 443 : 80)); this.query = opts.query || {}; if ('string' === typeof this.query) this.query = parseqs.decode(this.query); this.upgrade = false !== opts.upgrade; this.path = (opts.path || '/engine.io').replace(/\/$/, '') + '/'; this.forceJSONP = !!opts.forceJSONP; this.jsonp = false !== opts.jsonp; this.forceBase64 = !!opts.forceBase64; this.enablesXDR = !!opts.enablesXDR; this.withCredentials = false !== opts.withCredentials; this.timestampParam = opts.timestampParam || 't'; this.timestampRequests = opts.timestampRequests; this.transports = opts.transports || ['polling', 'websocket']; this.transportOptions = opts.transportOptions || {}; this.readyState = ''; this.writeBuffer = []; this.prevBufferLen = 0; this.policyPort = opts.policyPort || 843; this.rememberUpgrade = opts.rememberUpgrade || false; this.binaryType = null; this.onlyBinaryUpgrades = opts.onlyBinaryUpgrades; this.perMessageDeflate = false !== opts.perMessageDeflate ? (opts.perMessageDeflate || {}) : false; if (true === this.perMessageDeflate) this.perMessageDeflate = {}; if (this.perMessageDeflate && null == this.perMessageDeflate.threshold) { this.perMessageDeflate.threshold = 1024; } // SSL options for Node.js client
this.pfx = opts.pfx || null; this.key = opts.key || null; this.passphrase = opts.passphrase || null; this.cert = opts.cert || null; this.ca = opts.ca || null; this.ciphers = opts.ciphers || null; this.rejectUnauthorized = opts.rejectUnauthorized === undefined ? true : opts.rejectUnauthorized; this.forceNode = !!opts.forceNode; // detect ReactNative environment
this.isReactNative = (typeof navigator !== 'undefined' && typeof navigator.product === 'string' && navigator.product.toLowerCase() === 'reactnative'); // other options for Node.js or ReactNative client
if (typeof self === 'undefined' || this.isReactNative) { if (opts.extraHeaders && Object.keys(opts.extraHeaders).length > 0) { this.extraHeaders = opts.extraHeaders; } if (opts.localAddress) { this.localAddress = opts.localAddress; } } // set on handshake
this.id = null; this.upgrades = null; this.pingInterval = null; this.pingTimeout = null; // set on heartbeat
this.pingIntervalTimer = null; this.pingTimeoutTimer = null; this.open(); } Socket.priorWebsocketSuccess = false; /** * Mix in `Emitter`. */ Emitter(Socket.prototype); /** * Protocol version. * * @api public */ Socket.protocol = parser.protocol; // this is an int
/** * Expose deps for legacy compatibility * and standalone browser access. */ Socket.Socket = Socket; Socket.Transport = __webpack_require__(17); Socket.transports = __webpack_require__(12); Socket.parser = __webpack_require__(18); /** * Creates transport of the given type. * * @param {String} transport name * @return {Transport} * @api private */ Socket.prototype.createTransport = function (name) { var query = clone(this.query); // append engine.io protocol identifier
query.EIO = parser.protocol; // transport name
query.transport = name; // per-transport options
var options = this.transportOptions[name] || {}; // session id if we already have one
if (this.id) query.sid = this.id; var transport = new transports[name]({ query: query, socket: this, agent: options.agent || this.agent, hostname: options.hostname || this.hostname, port: options.port || this.port, secure: options.secure || this.secure, path: options.path || this.path, forceJSONP: options.forceJSONP || this.forceJSONP, jsonp: options.jsonp || this.jsonp, forceBase64: options.forceBase64 || this.forceBase64, enablesXDR: options.enablesXDR || this.enablesXDR, withCredentials: options.withCredentials || this.withCredentials, timestampRequests: options.timestampRequests || this.timestampRequests, timestampParam: options.timestampParam || this.timestampParam, policyPort: options.policyPort || this.policyPort, pfx: options.pfx || this.pfx, key: options.key || this.key, passphrase: options.passphrase || this.passphrase, cert: options.cert || this.cert, ca: options.ca || this.ca, ciphers: options.ciphers || this.ciphers, rejectUnauthorized: options.rejectUnauthorized || this.rejectUnauthorized, perMessageDeflate: options.perMessageDeflate || this.perMessageDeflate, extraHeaders: options.extraHeaders || this.extraHeaders, forceNode: options.forceNode || this.forceNode, localAddress: options.localAddress || this.localAddress, requestTimeout: options.requestTimeout || this.requestTimeout, protocols: options.protocols || void (0), isReactNative: this.isReactNative }); return transport; }; function clone (obj) { var o = {}; for (var i in obj) { if (obj.hasOwnProperty(i)) { o[i] = obj[i]; } } return o; } /** * Initializes transport to use and starts probe. * * @api private */ Socket.prototype.open = function () { var transport; if (this.rememberUpgrade && Socket.priorWebsocketSuccess && this.transports.indexOf('websocket') !== -1) { transport = 'websocket'; } else if (0 === this.transports.length) { // Emit error on next tick so it can be listened to
var self = this; setTimeout(function () { self.emit('error', 'No transports available'); }, 0); return; } else { transport = this.transports[0]; } this.readyState = 'opening'; // Retry with the next transport if the transport is disabled (jsonp: false)
try { transport = this.createTransport(transport); } catch (e) { this.transports.shift(); this.open(); return; } transport.open(); this.setTransport(transport); }; /** * Sets the current transport. Disables the existing one (if any). * * @api private */ Socket.prototype.setTransport = function (transport) { var self = this; if (this.transport) { this.transport.removeAllListeners(); } // set up transport
this.transport = transport; // set up transport listeners
transport .on('drain', function () { self.onDrain(); }) .on('packet', function (packet) { self.onPacket(packet); }) .on('error', function (e) { self.onError(e); }) .on('close', function () { self.onClose('transport close'); }); }; /** * Probes a transport. * * @param {String} transport name * @api private */ Socket.prototype.probe = function (name) { var transport = this.createTransport(name, { probe: 1 }); var failed = false; var self = this; Socket.priorWebsocketSuccess = false; function onTransportOpen () { if (self.onlyBinaryUpgrades) { var upgradeLosesBinary = !this.supportsBinary && self.transport.supportsBinary; failed = failed || upgradeLosesBinary; } if (failed) return; transport.send([{ type: 'ping', data: 'probe' }]); transport.once('packet', function (msg) { if (failed) return; if ('pong' === msg.type && 'probe' === msg.data) { self.upgrading = true; self.emit('upgrading', transport); if (!transport) return; Socket.priorWebsocketSuccess = 'websocket' === transport.name; self.transport.pause(function () { if (failed) return; if ('closed' === self.readyState) return; cleanup(); self.setTransport(transport); transport.send([{ type: 'upgrade' }]); self.emit('upgrade', transport); transport = null; self.upgrading = false; self.flush(); }); } else { var err = new Error('probe error'); err.transport = transport.name; self.emit('upgradeError', err); } }); } function freezeTransport () { if (failed) return; // Any callback called by transport should be ignored since now
failed = true; cleanup(); transport.close(); transport = null; } // Handle any error that happens while probing
function onerror (err) { var error = new Error('probe error: ' + err); error.transport = transport.name; freezeTransport(); self.emit('upgradeError', error); } function onTransportClose () { onerror('transport closed'); } // When the socket is closed while we're probing
function onclose () { onerror('socket closed'); } // When the socket is upgraded while we're probing
function onupgrade (to) { if (transport && to.name !== transport.name) { freezeTransport(); } } // Remove all listeners on the transport and on self
function cleanup () { transport.removeListener('open', onTransportOpen); transport.removeListener('error', onerror); transport.removeListener('close', onTransportClose); self.removeListener('close', onclose); self.removeListener('upgrading', onupgrade); } transport.once('open', onTransportOpen); transport.once('error', onerror); transport.once('close', onTransportClose); this.once('close', onclose); this.once('upgrading', onupgrade); transport.open(); }; /** * Called when connection is deemed open. * * @api public */ Socket.prototype.onOpen = function () { this.readyState = 'open'; Socket.priorWebsocketSuccess = 'websocket' === this.transport.name; this.emit('open'); this.flush(); // we check for `readyState` in case an `open`
// listener already closed the socket
if ('open' === this.readyState && this.upgrade && this.transport.pause) { for (var i = 0, l = this.upgrades.length; i < l; i++) { this.probe(this.upgrades[i]); } } }; /** * Handles a packet. * * @api private */ Socket.prototype.onPacket = function (packet) { if ('opening' === this.readyState || 'open' === this.readyState || 'closing' === this.readyState) { this.emit('packet', packet); // Socket is live - any packet counts
this.emit('heartbeat'); switch (packet.type) { case 'open': this.onHandshake(JSON.parse(packet.data)); break; case 'pong': this.setPing(); this.emit('pong'); break; case 'error': var err = new Error('server error'); err.code = packet.data; this.onError(err); break; case 'message': this.emit('data', packet.data); this.emit('message', packet.data); break; } } else { } }; /** * Called upon handshake completion. * * @param {Object} handshake obj * @api private */ Socket.prototype.onHandshake = function (data) { this.emit('handshake', data); this.id = data.sid; this.transport.query.sid = data.sid; this.upgrades = this.filterUpgrades(data.upgrades); this.pingInterval = data.pingInterval; this.pingTimeout = data.pingTimeout; this.onOpen(); // In case open handler closes socket
if ('closed' === this.readyState) return; this.setPing(); // Prolong liveness of socket on heartbeat
this.removeListener('heartbeat', this.onHeartbeat); this.on('heartbeat', this.onHeartbeat); }; /** * Resets ping timeout. * * @api private */ Socket.prototype.onHeartbeat = function (timeout) { clearTimeout(this.pingTimeoutTimer); var self = this; self.pingTimeoutTimer = setTimeout(function () { if ('closed' === self.readyState) return; self.onClose('ping timeout'); }, timeout || (self.pingInterval + self.pingTimeout)); }; /** * Pings server every `this.pingInterval` and expects response * within `this.pingTimeout` or closes connection. * * @api private */ Socket.prototype.setPing = function () { var self = this; clearTimeout(self.pingIntervalTimer); self.pingIntervalTimer = setTimeout(function () { self.ping(); self.onHeartbeat(self.pingTimeout); }, self.pingInterval); }; /** * Sends a ping packet. * * @api private */ Socket.prototype.ping = function () { var self = this; this.sendPacket('ping', function () { self.emit('ping'); }); }; /** * Called on `drain` event * * @api private */ Socket.prototype.onDrain = function () { this.writeBuffer.splice(0, this.prevBufferLen); // setting prevBufferLen = 0 is very important
// for example, when upgrading, upgrade packet is sent over,
// and a nonzero prevBufferLen could cause problems on `drain`
this.prevBufferLen = 0; if (0 === this.writeBuffer.length) { this.emit('drain'); } else { this.flush(); } }; /** * Flush write buffers. * * @api private */ Socket.prototype.flush = function () { if ('closed' !== this.readyState && this.transport.writable && !this.upgrading && this.writeBuffer.length) { this.transport.send(this.writeBuffer); // keep track of current length of writeBuffer
// splice writeBuffer and callbackBuffer on `drain`
this.prevBufferLen = this.writeBuffer.length; this.emit('flush'); } }; /** * Sends a message. * * @param {String} message. * @param {Function} callback function. * @param {Object} options. * @return {Socket} for chaining. * @api public */ Socket.prototype.write = Socket.prototype.send = function (msg, options, fn) { this.sendPacket('message', msg, options, fn); return this; }; /** * Sends a packet. * * @param {String} packet type. * @param {String} data. * @param {Object} options. * @param {Function} callback function. * @api private */ Socket.prototype.sendPacket = function (type, data, options, fn) { if ('function' === typeof data) { fn = data; data = undefined; } if ('function' === typeof options) { fn = options; options = null; } if ('closing' === this.readyState || 'closed' === this.readyState) { return; } options = options || {}; options.compress = false !== options.compress; var packet = { type: type, data: data, options: options }; this.emit('packetCreate', packet); this.writeBuffer.push(packet); if (fn) this.once('flush', fn); this.flush(); }; /** * Closes the connection. * * @api private */ Socket.prototype.close = function () { if ('opening' === this.readyState || 'open' === this.readyState) { this.readyState = 'closing'; var self = this; if (this.writeBuffer.length) { this.once('drain', function () { if (this.upgrading) { waitForUpgrade(); } else { close(); } }); } else if (this.upgrading) { waitForUpgrade(); } else { close(); } } function close () { self.onClose('forced close'); self.transport.close(); } function cleanupAndClose () { self.removeListener('upgrade', cleanupAndClose); self.removeListener('upgradeError', cleanupAndClose); close(); } function waitForUpgrade () { // wait for upgrade to finish since we can't send packets while pausing a transport
self.once('upgrade', cleanupAndClose); self.once('upgradeError', cleanupAndClose); } return this; }; /** * Called upon transport error * * @api private */ Socket.prototype.onError = function (err) { Socket.priorWebsocketSuccess = false; this.emit('error', err); this.onClose('transport error', err); }; /** * Called upon transport close. * * @api private */ Socket.prototype.onClose = function (reason, desc) { if ('opening' === this.readyState || 'open' === this.readyState || 'closing' === this.readyState) { var self = this; // clear timers
clearTimeout(this.pingIntervalTimer); clearTimeout(this.pingTimeoutTimer); // stop event from firing again for transport
this.transport.removeAllListeners('close'); // ensure transport won't stay open
this.transport.close(); // ignore further transport communication
this.transport.removeAllListeners(); // set ready state
this.readyState = 'closed'; // clear session id
this.id = null; // emit close event
this.emit('close', reason, desc); // clean buffers after, so users can still
// grab the buffers on `close` event
self.writeBuffer = []; self.prevBufferLen = 0; } }; /** * Filters upgrades, returning only those matching client transports. * * @param {Array} server upgrades * @api private * */ Socket.prototype.filterUpgrades = function (upgrades) { var filteredUpgrades = []; for (var i = 0, j = upgrades.length; i < j; i++) { if (~index(this.transports, upgrades[i])) filteredUpgrades.push(upgrades[i]); } return filteredUpgrades; };
/***/ }), /* 12 */ /***/ (function(module, exports, __webpack_require__) {
/** * Module dependencies */ var XMLHttpRequest = __webpack_require__(13); var XHR = __webpack_require__(15); var JSONP = __webpack_require__(29); var websocket = __webpack_require__(30); /** * Export transports. */ exports.polling = polling; exports.websocket = websocket; /** * Polling transport polymorphic constructor. * Decides on xhr vs jsonp based on feature detection. * * @api private */ function polling (opts) { var xhr; var xd = false; var xs = false; var jsonp = false !== opts.jsonp; if (typeof location !== 'undefined') { var isSSL = 'https:' === location.protocol; var port = location.port; // some user agents have empty `location.port`
if (!port) { port = isSSL ? 443 : 80; } xd = opts.hostname !== location.hostname || port !== opts.port; xs = opts.secure !== isSSL; } opts.xdomain = xd; opts.xscheme = xs; xhr = new XMLHttpRequest(opts); if ('open' in xhr && !opts.forceJSONP) { return new XHR(opts); } else { if (!jsonp) throw new Error('JSONP disabled'); return new JSONP(opts); } }
/***/ }), /* 13 */ /***/ (function(module, exports, __webpack_require__) {
// browser shim for xmlhttprequest module
var hasCORS = __webpack_require__(14); module.exports = function (opts) { var xdomain = opts.xdomain; // scheme must be same when usign XDomainRequest
// http://blogs.msdn.com/b/ieinternals/archive/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds.aspx
var xscheme = opts.xscheme; // XDomainRequest has a flow of not sending cookie, therefore it should be disabled as a default.
// https://github.com/Automattic/engine.io-client/pull/217
var enablesXDR = opts.enablesXDR; // XMLHttpRequest can be disabled on IE
try { if ('undefined' !== typeof XMLHttpRequest && (!xdomain || hasCORS)) { return new XMLHttpRequest(); } } catch (e) { } // Use XDomainRequest for IE8 if enablesXDR is true
// because loading bar keeps flashing when using jsonp-polling
// https://github.com/yujiosaka/socke.io-ie8-loading-example
try { if ('undefined' !== typeof XDomainRequest && !xscheme && enablesXDR) { return new XDomainRequest(); } } catch (e) { } if (!xdomain) { try { return new self[['Active'].concat('Object').join('X')]('Microsoft.XMLHTTP'); } catch (e) { } } };
/***/ }), /* 14 */ /***/ (function(module, exports) {
/** * Module exports. * * Logic borrowed from Modernizr: * * - https://github.com/Modernizr/Modernizr/blob/master/feature-detects/cors.js
*/ try { module.exports = typeof XMLHttpRequest !== 'undefined' && 'withCredentials' in new XMLHttpRequest(); } catch (err) { // if XMLHttp support is disabled in IE then it will throw
// when trying to create
module.exports = false; }
/***/ }), /* 15 */ /***/ (function(module, exports, __webpack_require__) {
/* global attachEvent */ /** * Module requirements. */ var XMLHttpRequest = __webpack_require__(13); var Polling = __webpack_require__(16); var Emitter = __webpack_require__(5); var inherit = __webpack_require__(27); var debug = __webpack_require__(3)('engine.io-client:polling-xhr'); /** * Module exports. */ module.exports = XHR; module.exports.Request = Request; /** * Empty function */ function empty () {} /** * XHR Polling constructor. * * @param {Object} opts * @api public */ function XHR (opts) { Polling.call(this, opts); this.requestTimeout = opts.requestTimeout; this.extraHeaders = opts.extraHeaders; if (typeof location !== 'undefined') { var isSSL = 'https:' === location.protocol; var port = location.port; // some user agents have empty `location.port`
if (!port) { port = isSSL ? 443 : 80; } this.xd = (typeof location !== 'undefined' && opts.hostname !== location.hostname) || port !== opts.port; this.xs = opts.secure !== isSSL; } } /** * Inherits from Polling. */ inherit(XHR, Polling); /** * XHR supports binary */ XHR.prototype.supportsBinary = true; /** * Creates a request. * * @param {String} method * @api private */ XHR.prototype.request = function (opts) { opts = opts || {}; opts.uri = this.uri(); opts.xd = this.xd; opts.xs = this.xs; opts.agent = this.agent || false; opts.supportsBinary = this.supportsBinary; opts.enablesXDR = this.enablesXDR; opts.withCredentials = this.withCredentials; // SSL options for Node.js client
opts.pfx = this.pfx; opts.key = this.key; opts.passphrase = this.passphrase; opts.cert = this.cert; opts.ca = this.ca; opts.ciphers = this.ciphers; opts.rejectUnauthorized = this.rejectUnauthorized; opts.requestTimeout = this.requestTimeout; // other options for Node.js client
opts.extraHeaders = this.extraHeaders; return new Request(opts); }; /** * Sends data. * * @param {String} data to send. * @param {Function} called upon flush. * @api private */ XHR.prototype.doWrite = function (data, fn) { var isBinary = typeof data !== 'string' && data !== undefined; var req = this.request({ method: 'POST', data: data, isBinary: isBinary }); var self = this; req.on('success', fn); req.on('error', function (err) { self.onError('xhr post error', err); }); this.sendXhr = req; }; /** * Starts a poll cycle. * * @api private */ XHR.prototype.doPoll = function () { var req = this.request(); var self = this; req.on('data', function (data) { self.onData(data); }); req.on('error', function (err) { self.onError('xhr poll error', err); }); this.pollXhr = req; }; /** * Request constructor * * @param {Object} options * @api public */ function Request (opts) { this.method = opts.method || 'GET'; this.uri = opts.uri; this.xd = !!opts.xd; this.xs = !!opts.xs; this.async = false !== opts.async; this.data = undefined !== opts.data ? opts.data : null; this.agent = opts.agent; this.isBinary = opts.isBinary; this.supportsBinary = opts.supportsBinary; this.enablesXDR = opts.enablesXDR; this.withCredentials = opts.withCredentials; this.requestTimeout = opts.requestTimeout; // SSL options for Node.js client
this.pfx = opts.pfx; this.key = opts.key; this.passphrase = opts.passphrase; this.cert = opts.cert; this.ca = opts.ca; this.ciphers = opts.ciphers; this.rejectUnauthorized = opts.rejectUnauthorized; // other options for Node.js client
this.extraHeaders = opts.extraHeaders; this.create(); } /** * Mix in `Emitter`. */ Emitter(Request.prototype); /** * Creates the XHR object and sends the request. * * @api private */ Request.prototype.create = function () { var opts = { agent: this.agent, xdomain: this.xd, xscheme: this.xs, enablesXDR: this.enablesXDR }; // SSL options for Node.js client
opts.pfx = this.pfx; opts.key = this.key; opts.passphrase = this.passphrase; opts.cert = this.cert; opts.ca = this.ca; opts.ciphers = this.ciphers; opts.rejectUnauthorized = this.rejectUnauthorized; var xhr = this.xhr = new XMLHttpRequest(opts); var self = this; try { xhr.open(this.method, this.uri, this.async); try { if (this.extraHeaders) { xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true); for (var i in this.extraHeaders) { if (this.extraHeaders.hasOwnProperty(i)) { xhr.setRequestHeader(i, this.extraHeaders[i]); } } } } catch (e) {} if ('POST' === this.method) { try { if (this.isBinary) { xhr.setRequestHeader('Content-type', 'application/octet-stream'); } else { xhr.setRequestHeader('Content-type', 'text/plain;charset=UTF-8'); } } catch (e) {} } try { xhr.setRequestHeader('Accept', '*/*'); } catch (e) {} // ie6 check
if ('withCredentials' in xhr) { xhr.withCredentials = this.withCredentials; } if (this.requestTimeout) { xhr.timeout = this.requestTimeout; } if (this.hasXDR()) { xhr.onload = function () { self.onLoad(); }; xhr.onerror = function () { self.onError(xhr.responseText); }; } else { xhr.onreadystatechange = function () { if (xhr.readyState === 2) { try { var contentType = xhr.getResponseHeader('Content-Type'); if (self.supportsBinary && contentType === 'application/octet-stream' || contentType === 'application/octet-stream; charset=UTF-8') { xhr.responseType = 'arraybuffer'; } } catch (e) {} } if (4 !== xhr.readyState) return; if (200 === xhr.status || 1223 === xhr.status) { self.onLoad(); } else { // make sure the `error` event handler that's user-set
// does not throw in the same tick and gets caught here
setTimeout(function () { self.onError(typeof xhr.status === 'number' ? xhr.status : 0); }, 0); } }; } xhr.send(this.data); } catch (e) { // Need to defer since .create() is called directly fhrom the constructor
// and thus the 'error' event can only be only bound *after* this exception
// occurs. Therefore, also, we cannot throw here at all.
setTimeout(function () { self.onError(e); }, 0); return; } if (typeof document !== 'undefined') { this.index = Request.requestsCount++; Request.requests[this.index] = this; } }; /** * Called upon successful response. * * @api private */ Request.prototype.onSuccess = function () { this.emit('success'); this.cleanup(); }; /** * Called if we have data. * * @api private */ Request.prototype.onData = function (data) { this.emit('data', data); this.onSuccess(); }; /** * Called upon error. * * @api private */ Request.prototype.onError = function (err) { this.emit('error', err); this.cleanup(true); }; /** * Cleans up house. * * @api private */ Request.prototype.cleanup = function (fromError) { if ('undefined' === typeof this.xhr || null === this.xhr) { return; } // xmlhttprequest
if (this.hasXDR()) { this.xhr.onload = this.xhr.onerror = empty; } else { this.xhr.onreadystatechange = empty; } if (fromError) { try { this.xhr.abort(); } catch (e) {} } if (typeof document !== 'undefined') { delete Request.requests[this.index]; } this.xhr = null; }; /** * Called upon load. * * @api private */ Request.prototype.onLoad = function () { var data; try { var contentType; try { contentType = this.xhr.getResponseHeader('Content-Type'); } catch (e) {} if (contentType === 'application/octet-stream' || contentType === 'application/octet-stream; charset=UTF-8') { data = this.xhr.response || this.xhr.responseText; } else { data = this.xhr.responseText; } } catch (e) { this.onError(e); } if (null != data) { this.onData(data); } }; /** * Check if it has XDomainRequest. * * @api private */ Request.prototype.hasXDR = function () { return typeof XDomainRequest !== 'undefined' && !this.xs && this.enablesXDR; }; /** * Aborts the request. * * @api public */ Request.prototype.abort = function () { this.cleanup(); }; /** * Aborts pending requests when unloading the window. This is needed to prevent * memory leaks (e.g. when using IE) and to ensure that no spurious error is * emitted. */ Request.requestsCount = 0; Request.requests = {}; if (typeof document !== 'undefined') { if (typeof attachEvent === 'function') { attachEvent('onunload', unloadHandler); } else if (typeof addEventListener === 'function') { var terminationEvent = 'onpagehide' in self ? 'pagehide' : 'unload'; addEventListener(terminationEvent, unloadHandler, false); } } function unloadHandler () { for (var i in Request.requests) { if (Request.requests.hasOwnProperty(i)) { Request.requests[i].abort(); } } }
/***/ }), /* 16 */ /***/ (function(module, exports, __webpack_require__) {
/** * Module dependencies. */ var Transport = __webpack_require__(17); var parseqs = __webpack_require__(26); var parser = __webpack_require__(18); var inherit = __webpack_require__(27); var yeast = __webpack_require__(28); var debug = __webpack_require__(3)('engine.io-client:polling'); /** * Module exports. */ module.exports = Polling; /** * Is XHR2 supported? */ var hasXHR2 = (function () { var XMLHttpRequest = __webpack_require__(13); var xhr = new XMLHttpRequest({ xdomain: false }); return null != xhr.responseType; })(); /** * Polling interface. * * @param {Object} opts * @api private */ function Polling (opts) { var forceBase64 = (opts && opts.forceBase64); if (!hasXHR2 || forceBase64) { this.supportsBinary = false; } Transport.call(this, opts); } /** * Inherits from Transport. */ inherit(Polling, Transport); /** * Transport name. */ Polling.prototype.name = 'polling'; /** * Opens the socket (triggers polling). We write a PING message to determine * when the transport is open. * * @api private */ Polling.prototype.doOpen = function () { this.poll(); }; /** * Pauses polling. * * @param {Function} callback upon buffers are flushed and transport is paused * @api private */ Polling.prototype.pause = function (onPause) { var self = this; this.readyState = 'pausing'; function pause () { self.readyState = 'paused'; onPause(); } if (this.polling || !this.writable) { var total = 0; if (this.polling) { total++; this.once('pollComplete', function () { --total || pause(); }); } if (!this.writable) { total++; this.once('drain', function () { --total || pause(); }); } } else { pause(); } }; /** * Starts polling cycle. * * @api public */ Polling.prototype.poll = function () { this.polling = true; this.doPoll(); this.emit('poll'); }; /** * Overloads onData to detect payloads. * * @api private */ Polling.prototype.onData = function (data) { var self = this; var callback = function (packet, index, total) { // if its the first message we consider the transport open
if ('opening' === self.readyState) { self.onOpen(); } // if its a close packet, we close the ongoing requests
if ('close' === packet.type) { self.onClose(); return false; } // otherwise bypass onData and handle the message
self.onPacket(packet); }; // decode payload
parser.decodePayload(data, this.socket.binaryType, callback); // if an event did not trigger closing
if ('closed' !== this.readyState) { // if we got data we're not polling
this.polling = false; this.emit('pollComplete'); if ('open' === this.readyState) { this.poll(); } else { } } }; /** * For polling, send a close packet. * * @api private */ Polling.prototype.doClose = function () { var self = this; function close () { self.write([{ type: 'close' }]); } if ('open' === this.readyState) { close(); } else { // in case we're trying to close while
// handshaking is in progress (GH-164)
this.once('open', close); } }; /** * Writes a packets payload. * * @param {Array} data packets * @param {Function} drain callback * @api private */ Polling.prototype.write = function (packets) { var self = this; this.writable = false; var callbackfn = function () { self.writable = true; self.emit('drain'); }; parser.encodePayload(packets, this.supportsBinary, function (data) { self.doWrite(data, callbackfn); }); }; /** * Generates uri for connection. * * @api private */ Polling.prototype.uri = function () { var query = this.query || {}; var schema = this.secure ? 'https' : 'http'; var port = ''; // cache busting is forced
if (false !== this.timestampRequests) { query[this.timestampParam] = yeast(); } if (!this.supportsBinary && !query.sid) { query.b64 = 1; } query = parseqs.encode(query); // avoid port if default for schema
if (this.port && (('https' === schema && Number(this.port) !== 443) || ('http' === schema && Number(this.port) !== 80))) { port = ':' + this.port; } // prepend ? to query
if (query.length) { query = '?' + query; } var ipv6 = this.hostname.indexOf(':') !== -1; return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query; };
/***/ }), /* 17 */ /***/ (function(module, exports, __webpack_require__) {
/** * Module dependencies. */ var parser = __webpack_require__(18); var Emitter = __webpack_require__(5); /** * Module exports. */ module.exports = Transport; /** * Transport abstract constructor. * * @param {Object} options. * @api private */ function Transport (opts) { this.path = opts.path; this.hostname = opts.hostname; this.port = opts.port; this.secure = opts.secure; this.query = opts.query; this.timestampParam = opts.timestampParam; this.timestampRequests = opts.timestampRequests; this.readyState = ''; this.agent = opts.agent || false; this.socket = opts.socket; this.enablesXDR = opts.enablesXDR; this.withCredentials = opts.withCredentials; // SSL options for Node.js client
this.pfx = opts.pfx; this.key = opts.key; this.passphrase = opts.passphrase; this.cert = opts.cert; this.ca = opts.ca; this.ciphers = opts.ciphers; this.rejectUnauthorized = opts.rejectUnauthorized; this.forceNode = opts.forceNode; // results of ReactNative environment detection
this.isReactNative = opts.isReactNative; // other options for Node.js client
this.extraHeaders = opts.extraHeaders; this.localAddress = opts.localAddress; } /** * Mix in `Emitter`. */ Emitter(Transport.prototype); /** * Emits an error. * * @param {String} str * @return {Transport} for chaining * @api public */ Transport.prototype.onError = function (msg, desc) { var err = new Error(msg); err.type = 'TransportError'; err.description = desc; this.emit('error', err); return this; }; /** * Opens the transport. * * @api public */ Transport.prototype.open = function () { if ('closed' === this.readyState || '' === this.readyState) { this.readyState = 'opening'; this.doOpen(); } return this; }; /** * Closes the transport. * * @api private */ Transport.prototype.close = function () { if ('opening' === this.readyState || 'open' === this.readyState) { this.doClose(); this.onClose(); } return this; }; /** * Sends multiple packets. * * @param {Array} packets * @api private */ Transport.prototype.send = function (packets) { if ('open' === this.readyState) { this.write(packets); } else { throw new Error('Transport not open'); } }; /** * Called upon open * * @api private */ Transport.prototype.onOpen = function () { this.readyState = 'open'; this.writable = true; this.emit('open'); }; /** * Called with data. * * @param {String} data * @api private */ Transport.prototype.onData = function (data) { var packet = parser.decodePacket(data, this.socket.binaryType); this.onPacket(packet); }; /** * Called with a decoded packet. */ Transport.prototype.onPacket = function (packet) { this.emit('packet', packet); }; /** * Called upon close. * * @api private */ Transport.prototype.onClose = function () { this.readyState = 'closed'; this.emit('close'); };
/***/ }), /* 18 */ /***/ (function(module, exports, __webpack_require__) {
/** * Module dependencies. */ var keys = __webpack_require__(19); var hasBinary = __webpack_require__(20); var sliceBuffer = __webpack_require__(21); var after = __webpack_require__(22); var utf8 = __webpack_require__(23); var base64encoder; if (typeof ArrayBuffer !== 'undefined') { base64encoder = __webpack_require__(24); } /** * Check if we are running an android browser. That requires us to use * ArrayBuffer with polling transports... * * http://ghinda.net/jpeg-blob-ajax-android/
*/ var isAndroid = typeof navigator !== 'undefined' && /Android/i.test(navigator.userAgent); /** * Check if we are running in PhantomJS. * Uploading a Blob with PhantomJS does not work correctly, as reported here: * https://github.com/ariya/phantomjs/issues/11395
* @type boolean */ var isPhantomJS = typeof navigator !== 'undefined' && /PhantomJS/i.test(navigator.userAgent); /** * When true, avoids using Blobs to encode payloads. * @type boolean */ var dontSendBlobs = isAndroid || isPhantomJS; /** * Current protocol version. */ exports.protocol = 3; /** * Packet types. */ var packets = exports.packets = { open: 0 // non-ws
, close: 1 // non-ws
, ping: 2 , pong: 3 , message: 4 , upgrade: 5 , noop: 6 }; var packetslist = keys(packets); /** * Premade error packet. */ var err = { type: 'error', data: 'parser error' }; /** * Create a blob api even for blob builder when vendor prefixes exist */ var Blob = __webpack_require__(25); /** * Encodes a packet. * * <packet type id> [ <data> ] * * Example: * * 5hello world * 3 * 4 * * Binary is encoded in an identical principle * * @api private */ exports.encodePacket = function (packet, supportsBinary, utf8encode, callback) { if (typeof supportsBinary === 'function') { callback = supportsBinary; supportsBinary = false; } if (typeof utf8encode === 'function') { callback = utf8encode; utf8encode = null; } var data = (packet.data === undefined) ? undefined : packet.data.buffer || packet.data; if (typeof ArrayBuffer !== 'undefined' && data instanceof ArrayBuffer) { return encodeArrayBuffer(packet, supportsBinary, callback); } else if (typeof Blob !== 'undefined' && data instanceof Blob) { return encodeBlob(packet, supportsBinary, callback); } // might be an object with { base64: true, data: dataAsBase64String }
if (data && data.base64) { return encodeBase64Object(packet, callback); } // Sending data as a utf-8 string
var encoded = packets[packet.type]; // data fragment is optional
if (undefined !== packet.data) { encoded += utf8encode ? utf8.encode(String(packet.data), { strict: false }) : String(packet.data); } return callback('' + encoded); }; function encodeBase64Object(packet, callback) { // packet data is an object { base64: true, data: dataAsBase64String }
var message = 'b' + exports.packets[packet.type] + packet.data.data; return callback(message); } /** * Encode packet helpers for binary types */ function encodeArrayBuffer(packet, supportsBinary, callback) { if (!supportsBinary) { return exports.encodeBase64Packet(packet, callback); } var data = packet.data; var contentArray = new Uint8Array(data); var resultBuffer = new Uint8Array(1 + data.byteLength); resultBuffer[0] = packets[packet.type]; for (var i = 0; i < contentArray.length; i++) { resultBuffer[i+1] = contentArray[i]; } return callback(resultBuffer.buffer); } function encodeBlobAsArrayBuffer(packet, supportsBinary, callback) { if (!supportsBinary) { return exports.encodeBase64Packet(packet, callback); } var fr = new FileReader(); fr.onload = function() { exports.encodePacket({ type: packet.type, data: fr.result }, supportsBinary, true, callback); }; return fr.readAsArrayBuffer(packet.data); } function encodeBlob(packet, supportsBinary, callback) { if (!supportsBinary) { return exports.encodeBase64Packet(packet, callback); } if (dontSendBlobs) { return encodeBlobAsArrayBuffer(packet, supportsBinary, callback); } var length = new Uint8Array(1); length[0] = packets[packet.type]; var blob = new Blob([length.buffer, packet.data]); return callback(blob); } /** * Encodes a packet with binary data in a base64 string * * @param {Object} packet, has `type` and `data` * @return {String} base64 encoded message */ exports.encodeBase64Packet = function(packet, callback) { var message = 'b' + exports.packets[packet.type]; if (typeof Blob !== 'undefined' && packet.data instanceof Blob) { var fr = new FileReader(); fr.onload = function() { var b64 = fr.result.split(',')[1]; callback(message + b64); }; return fr.readAsDataURL(packet.data); } var b64data; try { b64data = String.fromCharCode.apply(null, new Uint8Array(packet.data)); } catch (e) { // iPhone Safari doesn't let you apply with typed arrays
var typed = new Uint8Array(packet.data); var basic = new Array(typed.length); for (var i = 0; i < typed.length; i++) { basic[i] = typed[i]; } b64data = String.fromCharCode.apply(null, basic); } message += btoa(b64data); return callback(message); }; /** * Decodes a packet. Changes format to Blob if requested. * * @return {Object} with `type` and `data` (if any) * @api private */ exports.decodePacket = function (data, binaryType, utf8decode) { if (data === undefined) { return err; } // String data
if (typeof data === 'string') { if (data.charAt(0) === 'b') { return exports.decodeBase64Packet(data.substr(1), binaryType); } if (utf8decode) { data = tryDecode(data); if (data === false) { return err; } } var type = data.charAt(0); if (Number(type) != type || !packetslist[type]) { return err; } if (data.length > 1) { return { type: packetslist[type], data: data.substring(1) }; } else { return { type: packetslist[type] }; } } var asArray = new Uint8Array(data); var type = asArray[0]; var rest = sliceBuffer(data, 1); if (Blob && binaryType === 'blob') { rest = new Blob([rest]); } return { type: packetslist[type], data: rest }; }; function tryDecode(data) { try { data = utf8.decode(data, { strict: false }); } catch (e) { return false; } return data; } /** * Decodes a packet encoded in a base64 string * * @param {String} base64 encoded message * @return {Object} with `type` and `data` (if any) */ exports.decodeBase64Packet = function(msg, binaryType) { var type = packetslist[msg.charAt(0)]; if (!base64encoder) { return { type: type, data: { base64: true, data: msg.substr(1) } }; } var data = base64encoder.decode(msg.substr(1)); if (binaryType === 'blob' && Blob) { data = new Blob([data]); } return { type: type, data: data }; }; /** * Encodes multiple messages (payload). * * <length>:data * * Example: * * 11:hello world2:hi * * If any contents are binary, they will be encoded as base64 strings. Base64 * encoded strings are marked with a b before the length specifier * * @param {Array} packets * @api private */ exports.encodePayload = function (packets, supportsBinary, callback) { if (typeof supportsBinary === 'function') { callback = supportsBinary; supportsBinary = null; } var isBinary = hasBinary(packets); if (supportsBinary && isBinary) { if (Blob && !dontSendBlobs) { return exports.encodePayloadAsBlob(packets, callback); } return exports.encodePayloadAsArrayBuffer(packets, callback); } if (!packets.length) { return callback('0:'); } function setLengthHeader(message) { return message.length + ':' + message; } function encodeOne(packet, doneCallback) { exports.encodePacket(packet, !isBinary ? false : supportsBinary, false, function(message) { doneCallback(null, setLengthHeader(message)); }); } map(packets, encodeOne, function(err, results) { return callback(results.join('')); }); }; /** * Async array map using after */ function map(ary, each, done) { var result = new Array(ary.length); var next = after(ary.length, done); var eachWithIndex = function(i, el, cb) { each(el, function(error, msg) { result[i] = msg; cb(error, result); }); }; for (var i = 0; i < ary.length; i++) { eachWithIndex(i, ary[i], next); } } /* * Decodes data when a payload is maybe expected. Possible binary contents are * decoded from their base64 representation * * @param {String} data, callback method * @api public */ exports.decodePayload = function (data, binaryType, callback) { if (typeof data !== 'string') { return exports.decodePayloadAsBinary(data, binaryType, callback); } if (typeof binaryType === 'function') { callback = binaryType; binaryType = null; } var packet; if (data === '') { // parser error - ignoring payload
return callback(err, 0, 1); } var length = '', n, msg; for (var i = 0, l = data.length; i < l; i++) { var chr = data.charAt(i); if (chr !== ':') { length += chr; continue; } if (length === '' || (length != (n = Number(length)))) { // parser error - ignoring payload
return callback(err, 0, 1); } msg = data.substr(i + 1, n); if (length != msg.length) { // parser error - ignoring payload
return callback(err, 0, 1); } if (msg.length) { packet = exports.decodePacket(msg, binaryType, false); if (err.type === packet.type && err.data === packet.data) { // parser error in individual packet - ignoring payload
return callback(err, 0, 1); } var ret = callback(packet, i + n, l); if (false === ret) return; } // advance cursor
i += n; length = ''; } if (length !== '') { // parser error - ignoring payload
return callback(err, 0, 1); } }; /** * Encodes multiple messages (payload) as binary. * * <1 = binary, 0 = string><number from 0-9><number from 0-9>[...]<number * 255><data> * * Example: * 1 3 255 1 2 3, if the binary contents are interpreted as 8 bit integers * * @param {Array} packets * @return {ArrayBuffer} encoded payload * @api private */ exports.encodePayloadAsArrayBuffer = function(packets, callback) { if (!packets.length) { return callback(new ArrayBuffer(0)); } function encodeOne(packet, doneCallback) { exports.encodePacket(packet, true, true, function(data) { return doneCallback(null, data); }); } map(packets, encodeOne, function(err, encodedPackets) { var totalLength = encodedPackets.reduce(function(acc, p) { var len; if (typeof p === 'string'){ len = p.length; } else { len = p.byteLength; } return acc + len.toString().length + len + 2; // string/binary identifier + separator = 2
}, 0); var resultArray = new Uint8Array(totalLength); var bufferIndex = 0; encodedPackets.forEach(function(p) { var isString = typeof p === 'string'; var ab = p; if (isString) { var view = new Uint8Array(p.length); for (var i = 0; i < p.length; i++) { view[i] = p.charCodeAt(i); } ab = view.buffer; } if (isString) { // not true binary
resultArray[bufferIndex++] = 0; } else { // true binary
resultArray[bufferIndex++] = 1; } var lenStr = ab.byteLength.toString(); for (var i = 0; i < lenStr.length; i++) { resultArray[bufferIndex++] = parseInt(lenStr[i]); } resultArray[bufferIndex++] = 255; var view = new Uint8Array(ab); for (var i = 0; i < view.length; i++) { resultArray[bufferIndex++] = view[i]; } }); return callback(resultArray.buffer); }); }; /** * Encode as Blob */ exports.encodePayloadAsBlob = function(packets, callback) { function encodeOne(packet, doneCallback) { exports.encodePacket(packet, true, true, function(encoded) { var binaryIdentifier = new Uint8Array(1); binaryIdentifier[0] = 1; if (typeof encoded === 'string') { var view = new Uint8Array(encoded.length); for (var i = 0; i < encoded.length; i++) { view[i] = encoded.charCodeAt(i); } encoded = view.buffer; binaryIdentifier[0] = 0; } var len = (encoded instanceof ArrayBuffer) ? encoded.byteLength : encoded.size; var lenStr = len.toString(); var lengthAry = new Uint8Array(lenStr.length + 1); for (var i = 0; i < lenStr.length; i++) { lengthAry[i] = parseInt(lenStr[i]); } lengthAry[lenStr.length] = 255; if (Blob) { var blob = new Blob([binaryIdentifier.buffer, lengthAry.buffer, encoded]); doneCallback(null, blob); } }); } map(packets, encodeOne, function(err, results) { return callback(new Blob(results)); }); }; /* * Decodes data when a payload is maybe expected. Strings are decoded by * interpreting each byte as a key code for entries marked to start with 0. See * description of encodePayloadAsBinary * * @param {ArrayBuffer} data, callback method * @api public */ exports.decodePayloadAsBinary = function (data, binaryType, callback) { if (typeof binaryType === 'function') { callback = binaryType; binaryType = null; } var bufferTail = data; var buffers = []; while (bufferTail.byteLength > 0) { var tailArray = new Uint8Array(bufferTail); var isString = tailArray[0] === 0; var msgLength = ''; for (var i = 1; ; i++) { if (tailArray[i] === 255) break; // 310 = char length of Number.MAX_VALUE
if (msgLength.length > 310) { return callback(err, 0, 1); } msgLength += tailArray[i]; } bufferTail = sliceBuffer(bufferTail, 2 + msgLength.length); msgLength = parseInt(msgLength); var msg = sliceBuffer(bufferTail, 0, msgLength); if (isString) { try { msg = String.fromCharCode.apply(null, new Uint8Array(msg)); } catch (e) { // iPhone Safari doesn't let you apply to typed arrays
var typed = new Uint8Array(msg); msg = ''; for (var i = 0; i < typed.length; i++) { msg += String.fromCharCode(typed[i]); } } } buffers.push(msg); bufferTail = sliceBuffer(bufferTail, msgLength); } var total = buffers.length; buffers.forEach(function(buffer, i) { callback(exports.decodePacket(buffer, binaryType, true), i, total); }); };
/***/ }), /* 19 */ /***/ (function(module, exports) {
/** * Gets the keys for an object. * * @return {Array} keys * @api private */ module.exports = Object.keys || function keys (obj){ var arr = []; var has = Object.prototype.hasOwnProperty; for (var i in obj) { if (has.call(obj, i)) { arr.push(i); } } return arr; };
/***/ }), /* 20 */ /***/ (function(module, exports, __webpack_require__) {
/* global Blob File */ /* * Module requirements. */ var isArray = __webpack_require__(7); var toString = Object.prototype.toString; var withNativeBlob = typeof Blob === 'function' || typeof Blob !== 'undefined' && toString.call(Blob) === '[object BlobConstructor]'; var withNativeFile = typeof File === 'function' || typeof File !== 'undefined' && toString.call(File) === '[object FileConstructor]'; /** * Module exports. */ module.exports = hasBinary; /** * Checks for binary data. * * Supports Buffer, ArrayBuffer, Blob and File. * * @param {Object} anything * @api public */ function hasBinary (obj) { if (!obj || typeof obj !== 'object') { return false; } if (isArray(obj)) { for (var i = 0, l = obj.length; i < l; i++) { if (hasBinary(obj[i])) { return true; } } return false; } if ((typeof Buffer === 'function' && Buffer.isBuffer && Buffer.isBuffer(obj)) || (typeof ArrayBuffer === 'function' && obj instanceof ArrayBuffer) || (withNativeBlob && obj instanceof Blob) || (withNativeFile && obj instanceof File) ) { return true; } // see: https://github.com/Automattic/has-binary/pull/4
if (obj.toJSON && typeof obj.toJSON === 'function' && arguments.length === 1) { return hasBinary(obj.toJSON(), true); } for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) { return true; } } return false; }
/***/ }), /* 21 */ /***/ (function(module, exports) {
/** * An abstraction for slicing an arraybuffer even when * ArrayBuffer.prototype.slice is not supported * * @api public */ module.exports = function(arraybuffer, start, end) { var bytes = arraybuffer.byteLength; start = start || 0; end = end || bytes; if (arraybuffer.slice) { return arraybuffer.slice(start, end); } if (start < 0) { start += bytes; } if (end < 0) { end += bytes; } if (end > bytes) { end = bytes; } if (start >= bytes || start >= end || bytes === 0) { return new ArrayBuffer(0); } var abv = new Uint8Array(arraybuffer); var result = new Uint8Array(end - start); for (var i = start, ii = 0; i < end; i++, ii++) { result[ii] = abv[i]; } return result.buffer; };
/***/ }), /* 22 */ /***/ (function(module, exports) {
module.exports = after function after(count, callback, err_cb) { var bail = false err_cb = err_cb || noop proxy.count = count return (count === 0) ? callback() : proxy function proxy(err, result) { if (proxy.count <= 0) { throw new Error('after called too many times') } --proxy.count // after first error, rest are passed to err_cb
if (err) { bail = true callback(err) // future error callbacks will go to error handler
callback = err_cb } else if (proxy.count === 0 && !bail) { callback(null, result) } } } function noop() {}
/***/ }), /* 23 */ /***/ (function(module, exports) {
/*! https://mths.be/utf8js v2.1.2 by @mathias */ var stringFromCharCode = String.fromCharCode; // Taken from https://mths.be/punycode
function ucs2decode(string) { var output = []; var counter = 0; var length = string.length; var value; var extra; while (counter < length) { value = string.charCodeAt(counter++); if (value >= 0xD800 && value <= 0xDBFF && counter < length) { // high surrogate, and there is a next character
extra = string.charCodeAt(counter++); if ((extra & 0xFC00) == 0xDC00) { // low surrogate
output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000); } else { // unmatched surrogate; only append this code unit, in case the next
// code unit is the high surrogate of a surrogate pair
output.push(value); counter--; } } else { output.push(value); } } return output; } // Taken from https://mths.be/punycode
function ucs2encode(array) { var length = array.length; var index = -1; var value; var output = ''; while (++index < length) { value = array[index]; if (value > 0xFFFF) { value -= 0x10000; output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800); value = 0xDC00 | value & 0x3FF; } output += stringFromCharCode(value); } return output; } function checkScalarValue(codePoint, strict) { if (codePoint >= 0xD800 && codePoint <= 0xDFFF) { if (strict) { throw Error( 'Lone surrogate U+' + codePoint.toString(16).toUpperCase() + ' is not a scalar value' ); } return false; } return true; } /*--------------------------------------------------------------------------*/ function createByte(codePoint, shift) { return stringFromCharCode(((codePoint >> shift) & 0x3F) | 0x80); } function encodeCodePoint(codePoint, strict) { if ((codePoint & 0xFFFFFF80) == 0) { // 1-byte sequence
return stringFromCharCode(codePoint); } var symbol = ''; if ((codePoint & 0xFFFFF800) == 0) { // 2-byte sequence
symbol = stringFromCharCode(((codePoint >> 6) & 0x1F) | 0xC0); } else if ((codePoint & 0xFFFF0000) == 0) { // 3-byte sequence
if (!checkScalarValue(codePoint, strict)) { codePoint = 0xFFFD; } symbol = stringFromCharCode(((codePoint >> 12) & 0x0F) | 0xE0); symbol += createByte(codePoint, 6); } else if ((codePoint & 0xFFE00000) == 0) { // 4-byte sequence
symbol = stringFromCharCode(((codePoint >> 18) & 0x07) | 0xF0); symbol += createByte(codePoint, 12); symbol += createByte(codePoint, 6); } symbol += stringFromCharCode((codePoint & 0x3F) | 0x80); return symbol; } function utf8encode(string, opts) { opts = opts || {}; var strict = false !== opts.strict; var codePoints = ucs2decode(string); var length = codePoints.length; var index = -1; var codePoint; var byteString = ''; while (++index < length) { codePoint = codePoints[index]; byteString += encodeCodePoint(codePoint, strict); } return byteString; } /*--------------------------------------------------------------------------*/ function readContinuationByte() { if (byteIndex >= byteCount) { throw Error('Invalid byte index'); } var continuationByte = byteArray[byteIndex] & 0xFF; byteIndex++; if ((continuationByte & 0xC0) == 0x80) { return continuationByte & 0x3F; } // If we end up here, it’s not a continuation byte
throw Error('Invalid continuation byte'); } function decodeSymbol(strict) { var byte1; var byte2; var byte3; var byte4; var codePoint; if (byteIndex > byteCount) { throw Error('Invalid byte index'); } if (byteIndex == byteCount) { return false; } // Read first byte
byte1 = byteArray[byteIndex] & 0xFF; byteIndex++; // 1-byte sequence (no continuation bytes)
if ((byte1 & 0x80) == 0) { return byte1; } // 2-byte sequence
if ((byte1 & 0xE0) == 0xC0) { byte2 = readContinuationByte(); codePoint = ((byte1 & 0x1F) << 6) | byte2; if (codePoint >= 0x80) { return codePoint; } else { throw Error('Invalid continuation byte'); } } // 3-byte sequence (may include unpaired surrogates)
if ((byte1 & 0xF0) == 0xE0) { byte2 = readContinuationByte(); byte3 = readContinuationByte(); codePoint = ((byte1 & 0x0F) << 12) | (byte2 << 6) | byte3; if (codePoint >= 0x0800) { return checkScalarValue(codePoint, strict) ? codePoint : 0xFFFD; } else { throw Error('Invalid continuation byte'); } } // 4-byte sequence
if ((byte1 & 0xF8) == 0xF0) { byte2 = readContinuationByte(); byte3 = readContinuationByte(); byte4 = readContinuationByte(); codePoint = ((byte1 & 0x07) << 0x12) | (byte2 << 0x0C) | (byte3 << 0x06) | byte4; if (codePoint >= 0x010000 && codePoint <= 0x10FFFF) { return codePoint; } } throw Error('Invalid UTF-8 detected'); } var byteArray; var byteCount; var byteIndex; function utf8decode(byteString, opts) { opts = opts || {}; var strict = false !== opts.strict; byteArray = ucs2decode(byteString); byteCount = byteArray.length; byteIndex = 0; var codePoints = []; var tmp; while ((tmp = decodeSymbol(strict)) !== false) { codePoints.push(tmp); } return ucs2encode(codePoints); } module.exports = { version: '2.1.2', encode: utf8encode, decode: utf8decode };
/***/ }), /* 24 */ /***/ (function(module, exports) {
/* * base64-arraybuffer * https://github.com/niklasvh/base64-arraybuffer
* * Copyright (c) 2012 Niklas von Hertzen * Licensed under the MIT license. */ (function(){ "use strict"; var chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; // Use a lookup table to find the index.
var lookup = new Uint8Array(256); for (var i = 0; i < chars.length; i++) { lookup[chars.charCodeAt(i)] = i; } exports.encode = function(arraybuffer) { var bytes = new Uint8Array(arraybuffer), i, len = bytes.length, base64 = ""; for (i = 0; i < len; i+=3) { base64 += chars[bytes[i] >> 2]; base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)]; base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)]; base64 += chars[bytes[i + 2] & 63]; } if ((len % 3) === 2) { base64 = base64.substring(0, base64.length - 1) + "="; } else if (len % 3 === 1) { base64 = base64.substring(0, base64.length - 2) + "=="; } return base64; }; exports.decode = function(base64) { var bufferLength = base64.length * 0.75, len = base64.length, i, p = 0, encoded1, encoded2, encoded3, encoded4; if (base64[base64.length - 1] === "=") { bufferLength--; if (base64[base64.length - 2] === "=") { bufferLength--; } } var arraybuffer = new ArrayBuffer(bufferLength), bytes = new Uint8Array(arraybuffer); for (i = 0; i < len; i+=4) { encoded1 = lookup[base64.charCodeAt(i)]; encoded2 = lookup[base64.charCodeAt(i+1)]; encoded3 = lookup[base64.charCodeAt(i+2)]; encoded4 = lookup[base64.charCodeAt(i+3)]; bytes[p++] = (encoded1 << 2) | (encoded2 >> 4); bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2); bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63); } return arraybuffer; }; })();
/***/ }), /* 25 */ /***/ (function(module, exports) {
/** * Create a blob builder even when vendor prefixes exist */ var BlobBuilder = typeof BlobBuilder !== 'undefined' ? BlobBuilder : typeof WebKitBlobBuilder !== 'undefined' ? WebKitBlobBuilder : typeof MSBlobBuilder !== 'undefined' ? MSBlobBuilder : typeof MozBlobBuilder !== 'undefined' ? MozBlobBuilder : false; /** * Check if Blob constructor is supported */ var blobSupported = (function() { try { var a = new Blob(['hi']); return a.size === 2; } catch(e) { return false; } })(); /** * Check if Blob constructor supports ArrayBufferViews * Fails in Safari 6, so we need to map to ArrayBuffers there. */ var blobSupportsArrayBufferView = blobSupported && (function() { try { var b = new Blob([new Uint8Array([1,2])]); return b.size === 2; } catch(e) { return false; } })(); /** * Check if BlobBuilder is supported */ var blobBuilderSupported = BlobBuilder && BlobBuilder.prototype.append && BlobBuilder.prototype.getBlob; /** * Helper function that maps ArrayBufferViews to ArrayBuffers * Used by BlobBuilder constructor and old browsers that didn't * support it in the Blob constructor. */ function mapArrayBufferViews(ary) { return ary.map(function(chunk) { if (chunk.buffer instanceof ArrayBuffer) { var buf = chunk.buffer; // if this is a subarray, make a copy so we only
// include the subarray region from the underlying buffer
if (chunk.byteLength !== buf.byteLength) { var copy = new Uint8Array(chunk.byteLength); copy.set(new Uint8Array(buf, chunk.byteOffset, chunk.byteLength)); buf = copy.buffer; } return buf; } return chunk; }); } function BlobBuilderConstructor(ary, options) { options = options || {}; var bb = new BlobBuilder(); mapArrayBufferViews(ary).forEach(function(part) { bb.append(part); }); return (options.type) ? bb.getBlob(options.type) : bb.getBlob(); }; function BlobConstructor(ary, options) { return new Blob(mapArrayBufferViews(ary), options || {}); }; if (typeof Blob !== 'undefined') { BlobBuilderConstructor.prototype = Blob.prototype; BlobConstructor.prototype = Blob.prototype; } module.exports = (function() { if (blobSupported) { return blobSupportsArrayBufferView ? Blob : BlobConstructor; } else if (blobBuilderSupported) { return BlobBuilderConstructor; } else { return undefined; } })();
/***/ }), /* 26 */ /***/ (function(module, exports) {
/** * Compiles a querystring * Returns string representation of the object * * @param {Object} * @api private */ exports.encode = function (obj) { var str = ''; for (var i in obj) { if (obj.hasOwnProperty(i)) { if (str.length) str += '&'; str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]); } } return str; }; /** * Parses a simple querystring into an object * * @param {String} qs * @api private */ exports.decode = function(qs){ var qry = {}; var pairs = qs.split('&'); for (var i = 0, l = pairs.length; i < l; i++) { var pair = pairs[i].split('='); qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]); } return qry; };
/***/ }), /* 27 */ /***/ (function(module, exports) {
module.exports = function(a, b){ var fn = function(){}; fn.prototype = b.prototype; a.prototype = new fn; a.prototype.constructor = a; };
/***/ }), /* 28 */ /***/ (function(module, exports) {
'use strict'; var alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split('') , length = 64 , map = {} , seed = 0 , i = 0 , prev; /** * Return a string representing the specified number. * * @param {Number} num The number to convert. * @returns {String} The string representation of the number. * @api public */ function encode(num) { var encoded = ''; do { encoded = alphabet[num % length] + encoded; num = Math.floor(num / length); } while (num > 0); return encoded; } /** * Return the integer value specified by the given string. * * @param {String} str The string to convert. * @returns {Number} The integer value represented by the string. * @api public */ function decode(str) { var decoded = 0; for (i = 0; i < str.length; i++) { decoded = decoded * length + map[str.charAt(i)]; } return decoded; } /** * Yeast: A tiny growing id generator. * * @returns {String} A unique id. * @api public */ function yeast() { var now = encode(+new Date()); if (now !== prev) return seed = 0, prev = now; return now +'.'+ encode(seed++); } //
// Map each character to its index.
//
for (; i < length; i++) map[alphabet[i]] = i; //
// Expose the `yeast`, `encode` and `decode` functions.
//
yeast.encode = encode; yeast.decode = decode; module.exports = yeast;
/***/ }), /* 29 */ /***/ (function(module, exports, __webpack_require__) {
/* WEBPACK VAR INJECTION */(function(global) {/** * Module requirements. */ var Polling = __webpack_require__(16); var inherit = __webpack_require__(27); /** * Module exports. */ module.exports = JSONPPolling; /** * Cached regular expressions. */ var rNewline = /\n/g; var rEscapedNewline = /\\n/g; /** * Global JSONP callbacks. */ var callbacks; /** * Noop. */ function empty () { } /** * Until https://github.com/tc39/proposal-global is shipped.
*/ function glob () { return typeof self !== 'undefined' ? self : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : {}; } /** * JSONP Polling constructor. * * @param {Object} opts. * @api public */ function JSONPPolling (opts) { Polling.call(this, opts); this.query = this.query || {}; // define global callbacks array if not present
// we do this here (lazily) to avoid unneeded global pollution
if (!callbacks) { // we need to consider multiple engines in the same page
var global = glob(); callbacks = global.___eio = (global.___eio || []); } // callback identifier
this.index = callbacks.length; // add callback to jsonp global
var self = this; callbacks.push(function (msg) { self.onData(msg); }); // append to query string
this.query.j = this.index; // prevent spurious errors from being emitted when the window is unloaded
if (typeof addEventListener === 'function') { addEventListener('beforeunload', function () { if (self.script) self.script.onerror = empty; }, false); } } /** * Inherits from Polling. */ inherit(JSONPPolling, Polling); /* * JSONP only supports binary as base64 encoded strings */ JSONPPolling.prototype.supportsBinary = false; /** * Closes the socket. * * @api private */ JSONPPolling.prototype.doClose = function () { if (this.script) { this.script.parentNode.removeChild(this.script); this.script = null; } if (this.form) { this.form.parentNode.removeChild(this.form); this.form = null; this.iframe = null; } Polling.prototype.doClose.call(this); }; /** * Starts a poll cycle. * * @api private */ JSONPPolling.prototype.doPoll = function () { var self = this; var script = document.createElement('script'); if (this.script) { this.script.parentNode.removeChild(this.script); this.script = null; } script.async = true; script.src = this.uri(); script.onerror = function (e) { self.onError('jsonp poll error', e); }; var insertAt = document.getElementsByTagName('script')[0]; if (insertAt) { insertAt.parentNode.insertBefore(script, insertAt); } else { (document.head || document.body).appendChild(script); } this.script = script; var isUAgecko = 'undefined' !== typeof navigator && /gecko/i.test(navigator.userAgent); if (isUAgecko) { setTimeout(function () { var iframe = document.createElement('iframe'); document.body.appendChild(iframe); document.body.removeChild(iframe); }, 100); } }; /** * Writes with a hidden iframe. * * @param {String} data to send * @param {Function} called upon flush. * @api private */ JSONPPolling.prototype.doWrite = function (data, fn) { var self = this; if (!this.form) { var form = document.createElement('form'); var area = document.createElement('textarea'); var id = this.iframeId = 'eio_iframe_' + this.index; var iframe; form.className = 'socketio'; form.style.position = 'absolute'; form.style.top = '-1000px'; form.style.left = '-1000px'; form.target = id; form.method = 'POST'; form.setAttribute('accept-charset', 'utf-8'); area.name = 'd'; form.appendChild(area); document.body.appendChild(form); this.form = form; this.area = area; } this.form.action = this.uri(); function complete () { initIframe(); fn(); } function initIframe () { if (self.iframe) { try { self.form.removeChild(self.iframe); } catch (e) { self.onError('jsonp polling iframe removal error', e); } } try { // ie6 dynamic iframes with target="" support (thanks Chris Lambacher)
var html = '<iframe src="javascript:0" name="' + self.iframeId + '">'; iframe = document.createElement(html); } catch (e) { iframe = document.createElement('iframe'); iframe.name = self.iframeId; iframe.src = 'javascript:0'; } iframe.id = self.iframeId; self.form.appendChild(iframe); self.iframe = iframe; } initIframe(); // escape \n to prevent it from being converted into \r\n by some UAs
// double escaping is required for escaped new lines because unescaping of new lines can be done safely on server-side
data = data.replace(rEscapedNewline, '\\\n'); this.area.value = data.replace(rNewline, '\\n'); try { this.form.submit(); } catch (e) {} if (this.iframe.attachEvent) { this.iframe.onreadystatechange = function () { if (self.iframe.readyState === 'complete') { complete(); } }; } else { this.iframe.onload = complete; } }; /* WEBPACK VAR INJECTION */}.call(exports, (function() { return this; }())))
/***/ }), /* 30 */ /***/ (function(module, exports, __webpack_require__) {
/** * Module dependencies. */ var Transport = __webpack_require__(17); var parser = __webpack_require__(18); var parseqs = __webpack_require__(26); var inherit = __webpack_require__(27); var yeast = __webpack_require__(28); var debug = __webpack_require__(3)('engine.io-client:websocket'); var BrowserWebSocket, NodeWebSocket; if (typeof WebSocket !== 'undefined') { BrowserWebSocket = WebSocket; } else if (typeof self !== 'undefined') { BrowserWebSocket = self.WebSocket || self.MozWebSocket; } if (typeof window === 'undefined') { try { NodeWebSocket = __webpack_require__(31); } catch (e) { } } /** * Get either the `WebSocket` or `MozWebSocket` globals * in the browser or try to resolve WebSocket-compatible * interface exposed by `ws` for Node-like environment. */ var WebSocketImpl = BrowserWebSocket || NodeWebSocket; /** * Module exports. */ module.exports = WS; /** * WebSocket transport constructor. * * @api {Object} connection options * @api public */ function WS (opts) { var forceBase64 = (opts && opts.forceBase64); if (forceBase64) { this.supportsBinary = false; } this.perMessageDeflate = opts.perMessageDeflate; this.usingBrowserWebSocket = BrowserWebSocket && !opts.forceNode; this.protocols = opts.protocols; if (!this.usingBrowserWebSocket) { WebSocketImpl = NodeWebSocket; } Transport.call(this, opts); } /** * Inherits from Transport. */ inherit(WS, Transport); /** * Transport name. * * @api public */ WS.prototype.name = 'websocket'; /* * WebSockets support binary */ WS.prototype.supportsBinary = true; /** * Opens socket. * * @api private */ WS.prototype.doOpen = function () { if (!this.check()) { // let probe timeout
return; } var uri = this.uri(); var protocols = this.protocols; var opts = { agent: this.agent, perMessageDeflate: this.perMessageDeflate }; // SSL options for Node.js client
opts.pfx = this.pfx; opts.key = this.key; opts.passphrase = this.passphrase; opts.cert = this.cert; opts.ca = this.ca; opts.ciphers = this.ciphers; opts.rejectUnauthorized = this.rejectUnauthorized; if (this.extraHeaders) { opts.headers = this.extraHeaders; } if (this.localAddress) { opts.localAddress = this.localAddress; } try { this.ws = this.usingBrowserWebSocket && !this.isReactNative ? protocols ? new WebSocketImpl(uri, protocols) : new WebSocketImpl(uri) : new WebSocketImpl(uri, protocols, opts); } catch (err) { return this.emit('error', err); } if (this.ws.binaryType === undefined) { this.supportsBinary = false; } if (this.ws.supports && this.ws.supports.binary) { this.supportsBinary = true; this.ws.binaryType = 'nodebuffer'; } else { this.ws.binaryType = 'arraybuffer'; } this.addEventListeners(); }; /** * Adds event listeners to the socket * * @api private */ WS.prototype.addEventListeners = function () { var self = this; this.ws.onopen = function () { self.onOpen(); }; this.ws.onclose = function () { self.onClose(); }; this.ws.onmessage = function (ev) { self.onData(ev.data); }; this.ws.onerror = function (e) { self.onError('websocket error', e); }; }; /** * Writes data to socket. * * @param {Array} array of packets. * @api private */ WS.prototype.write = function (packets) { var self = this; this.writable = false; // encodePacket efficient as it uses WS framing
// no need for encodePayload
var total = packets.length; for (var i = 0, l = total; i < l; i++) { (function (packet) { parser.encodePacket(packet, self.supportsBinary, function (data) { if (!self.usingBrowserWebSocket) { // always create a new object (GH-437)
var opts = {}; if (packet.options) { opts.compress = packet.options.compress; } if (self.perMessageDeflate) { var len = 'string' === typeof data ? Buffer.byteLength(data) : data.length; if (len < self.perMessageDeflate.threshold) { opts.compress = false; } } } // Sometimes the websocket has already been closed but the browser didn't
// have a chance of informing us about it yet, in that case send will
// throw an error
try { if (self.usingBrowserWebSocket) { // TypeError is thrown when passing the second argument on Safari
self.ws.send(data); } else { self.ws.send(data, opts); } } catch (e) { } --total || done(); }); })(packets[i]); } function done () { self.emit('flush'); // fake drain
// defer to next tick to allow Socket to clear writeBuffer
setTimeout(function () { self.writable = true; self.emit('drain'); }, 0); } }; /** * Called upon close * * @api private */ WS.prototype.onClose = function () { Transport.prototype.onClose.call(this); }; /** * Closes socket. * * @api private */ WS.prototype.doClose = function () { if (typeof this.ws !== 'undefined') { this.ws.close(); } }; /** * Generates uri for connection. * * @api private */ WS.prototype.uri = function () { var query = this.query || {}; var schema = this.secure ? 'wss' : 'ws'; var port = ''; // avoid port if default for schema
if (this.port && (('wss' === schema && Number(this.port) !== 443) || ('ws' === schema && Number(this.port) !== 80))) { port = ':' + this.port; } // append timestamp to URI
if (this.timestampRequests) { query[this.timestampParam] = yeast(); } // communicate binary support capabilities
if (!this.supportsBinary) { query.b64 = 1; } query = parseqs.encode(query); // prepend ? to query
if (query.length) { query = '?' + query; } var ipv6 = this.hostname.indexOf(':') !== -1; return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query; }; /** * Feature detection for WebSocket. * * @return {Boolean} whether this transport is available. * @api public */ WS.prototype.check = function () { return !!WebSocketImpl && !('__initialize' in WebSocketImpl && this.name === WS.prototype.name); };
/***/ }), /* 31 */ /***/ (function(module, exports) {
/* (ignored) */
/***/ }), /* 32 */ /***/ (function(module, exports) {
var indexOf = [].indexOf; module.exports = function(arr, obj){ if (indexOf) return arr.indexOf(obj); for (var i = 0; i < arr.length; ++i) { if (arr[i] === obj) return i; } return -1; };
/***/ }), /* 33 */ /***/ (function(module, exports, __webpack_require__) {
'use strict'; var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; /** * Module dependencies. */ var parser = __webpack_require__(4); var Emitter = __webpack_require__(5); var toArray = __webpack_require__(34); var on = __webpack_require__(35); var bind = __webpack_require__(36); var debug = __webpack_require__(3)('socket.io-client:socket'); var parseqs = __webpack_require__(26); var hasBin = __webpack_require__(20); /** * Module exports. */ module.exports = exports = Socket; /** * Internal events (blacklisted). * These events can't be emitted by the user. * * @api private */ var events = { connect: 1, connect_error: 1, connect_timeout: 1, connecting: 1, disconnect: 1, error: 1, reconnect: 1, reconnect_attempt: 1, reconnect_failed: 1, reconnect_error: 1, reconnecting: 1, ping: 1, pong: 1 }; /** * Shortcut to `Emitter#emit`. */ var emit = Emitter.prototype.emit; /** * `Socket` constructor. * * @api public */ function Socket(io, nsp, opts) { this.io = io; this.nsp = nsp; this.json = this; // compat
this.ids = 0; this.acks = {}; this.receiveBuffer = []; this.sendBuffer = []; this.connected = false; this.disconnected = true; this.flags = {}; if (opts && opts.query) { this.query = opts.query; } if (this.io.autoConnect) this.open(); } /** * Mix in `Emitter`. */ Emitter(Socket.prototype); /** * Subscribe to open, close and packet events * * @api private */ Socket.prototype.subEvents = function () { if (this.subs) return; var io = this.io; this.subs = [on(io, 'open', bind(this, 'onopen')), on(io, 'packet', bind(this, 'onpacket')), on(io, 'close', bind(this, 'onclose'))]; }; /** * "Opens" the socket. * * @api public */ Socket.prototype.open = Socket.prototype.connect = function () { if (this.connected) return this; this.subEvents(); this.io.open(); // ensure open
if ('open' === this.io.readyState) this.onopen(); this.emit('connecting'); return this; }; /** * Sends a `message` event. * * @return {Socket} self * @api public */ Socket.prototype.send = function () { var args = toArray(arguments); args.unshift('message'); this.emit.apply(this, args); return this; }; /** * Override `emit`. * If the event is in `events`, it's emitted normally. * * @param {String} event name * @return {Socket} self * @api public */ Socket.prototype.emit = function (ev) { if (events.hasOwnProperty(ev)) { emit.apply(this, arguments); return this; } var args = toArray(arguments); var packet = { type: (this.flags.binary !== undefined ? this.flags.binary : hasBin(args)) ? parser.BINARY_EVENT : parser.EVENT, data: args }; packet.options = {}; packet.options.compress = !this.flags || false !== this.flags.compress; // event ack callback
if ('function' === typeof args[args.length - 1]) { this.acks[this.ids] = args.pop(); packet.id = this.ids++; } if (this.connected) { this.packet(packet); } else { this.sendBuffer.push(packet); } this.flags = {}; return this; }; /** * Sends a packet. * * @param {Object} packet * @api private */ Socket.prototype.packet = function (packet) { packet.nsp = this.nsp; this.io.packet(packet); }; /** * Called upon engine `open`. * * @api private */ Socket.prototype.onopen = function () { // write connect packet if necessary
if ('/' !== this.nsp) { if (this.query) { var query = _typeof(this.query) === 'object' ? parseqs.encode(this.query) : this.query; this.packet({ type: parser.CONNECT, query: query }); } else { this.packet({ type: parser.CONNECT }); } } }; /** * Called upon engine `close`. * * @param {String} reason * @api private */ Socket.prototype.onclose = function (reason) { this.connected = false; this.disconnected = true; delete this.id; this.emit('disconnect', reason); }; /** * Called with socket packet. * * @param {Object} packet * @api private */ Socket.prototype.onpacket = function (packet) { var sameNamespace = packet.nsp === this.nsp; var rootNamespaceError = packet.type === parser.ERROR && packet.nsp === '/'; if (!sameNamespace && !rootNamespaceError) return; switch (packet.type) { case parser.CONNECT: this.onconnect(); break; case parser.EVENT: this.onevent(packet); break; case parser.BINARY_EVENT: this.onevent(packet); break; case parser.ACK: this.onack(packet); break; case parser.BINARY_ACK: this.onack(packet); break; case parser.DISCONNECT: this.ondisconnect(); break; case parser.ERROR: this.emit('error', packet.data); break; } }; /** * Called upon a server event. * * @param {Object} packet * @api private */ Socket.prototype.onevent = function (packet) { var args = packet.data || []; if (null != packet.id) { args.push(this.ack(packet.id)); } if (this.connected) { emit.apply(this, args); } else { this.receiveBuffer.push(args); } }; /** * Produces an ack callback to emit with an event. * * @api private */ Socket.prototype.ack = function (id) { var self = this; var sent = false; return function () { // prevent double callbacks
if (sent) return; sent = true; var args = toArray(arguments); self.packet({ type: hasBin(args) ? parser.BINARY_ACK : parser.ACK, id: id, data: args }); }; }; /** * Called upon a server acknowlegement. * * @param {Object} packet * @api private */ Socket.prototype.onack = function (packet) { var ack = this.acks[packet.id]; if ('function' === typeof ack) { ack.apply(this, packet.data); delete this.acks[packet.id]; } else {} }; /** * Called upon server connect. * * @api private */ Socket.prototype.onconnect = function () { this.connected = true; this.disconnected = false; this.emit('connect'); this.emitBuffered(); }; /** * Emit buffered events (received and emitted). * * @api private */ Socket.prototype.emitBuffered = function () { var i; for (i = 0; i < this.receiveBuffer.length; i++) { emit.apply(this, this.receiveBuffer[i]); } this.receiveBuffer = []; for (i = 0; i < this.sendBuffer.length; i++) { this.packet(this.sendBuffer[i]); } this.sendBuffer = []; }; /** * Called upon server disconnect. * * @api private */ Socket.prototype.ondisconnect = function () { this.destroy(); this.onclose('io server disconnect'); }; /** * Called upon forced client/server side disconnections, * this method ensures the manager stops tracking us and * that reconnections don't get triggered for this. * * @api private. */ Socket.prototype.destroy = function () { if (this.subs) { // clean subscriptions to avoid reconnections
for (var i = 0; i < this.subs.length; i++) { this.subs[i].destroy(); } this.subs = null; } this.io.destroy(this); }; /** * Disconnects the socket manually. * * @return {Socket} self * @api public */ Socket.prototype.close = Socket.prototype.disconnect = function () { if (this.connected) { this.packet({ type: parser.DISCONNECT }); } // remove socket from pool
this.destroy(); if (this.connected) { // fire events
this.onclose('io client disconnect'); } return this; }; /** * Sets the compress flag. * * @param {Boolean} if `true`, compresses the sending data * @return {Socket} self * @api public */ Socket.prototype.compress = function (compress) { this.flags.compress = compress; return this; }; /** * Sets the binary flag * * @param {Boolean} whether the emitted data contains binary * @return {Socket} self * @api public */ Socket.prototype.binary = function (binary) { this.flags.binary = binary; return this; };
/***/ }), /* 34 */ /***/ (function(module, exports) {
module.exports = toArray function toArray(list, index) { var array = [] index = index || 0 for (var i = index || 0; i < list.length; i++) { array[i - index] = list[i] } return array }
/***/ }), /* 35 */ /***/ (function(module, exports) {
"use strict"; /** * Module exports. */ module.exports = on; /** * Helper for subscriptions. * * @param {Object|EventEmitter} obj with `Emitter` mixin or `EventEmitter` * @param {String} event name * @param {Function} callback * @api public */ function on(obj, ev, fn) { obj.on(ev, fn); return { destroy: function destroy() { obj.removeListener(ev, fn); } }; }
/***/ }), /* 36 */ /***/ (function(module, exports) {
/** * Slice reference. */ var slice = [].slice; /** * Bind `obj` to `fn`. * * @param {Object} obj * @param {Function|String} fn or string * @return {Function} * @api public */ module.exports = function(obj, fn){ if ('string' == typeof fn) fn = obj[fn]; if ('function' != typeof fn) throw new Error('bind() requires a function'); var args = slice.call(arguments, 2); return function(){ return fn.apply(obj, args.concat(slice.call(arguments))); } };
/***/ }), /* 37 */ /***/ (function(module, exports) {
/** * Expose `Backoff`. */ module.exports = Backoff; /** * Initialize backoff timer with `opts`. * * - `min` initial timeout in milliseconds [100] * - `max` max timeout [10000] * - `jitter` [0] * - `factor` [2] * * @param {Object} opts * @api public */ function Backoff(opts) { opts = opts || {}; this.ms = opts.min || 100; this.max = opts.max || 10000; this.factor = opts.factor || 2; this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0; this.attempts = 0; } /** * Return the backoff duration. * * @return {Number} * @api public */ Backoff.prototype.duration = function(){ var ms = this.ms * Math.pow(this.factor, this.attempts++); if (this.jitter) { var rand = Math.random(); var deviation = Math.floor(rand * this.jitter * ms); ms = (Math.floor(rand * 10) & 1) == 0 ? ms - deviation : ms + deviation; } return Math.min(ms, this.max) | 0; }; /** * Reset the number of attempts. * * @api public */ Backoff.prototype.reset = function(){ this.attempts = 0; }; /** * Set the minimum duration * * @api public */ Backoff.prototype.setMin = function(min){ this.ms = min; }; /** * Set the maximum duration * * @api public */ Backoff.prototype.setMax = function(max){ this.max = max; }; /** * Set the jitter * * @api public */ Backoff.prototype.setJitter = function(jitter){ this.jitter = jitter; };
/***/ }) /******/ ]) }); ; //# sourceMappingURL=socket.io.slim.dev.js.map
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