/*!
* 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;
};
/***/ })
/******/ ])
});
;
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