(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o= v31, * and the Firebug extension (any Firefox version) are known * to support "%c" CSS customizations. * * TODO: add a `localStorage` variable to explicitly enable/disable colors */ function useColors() { // is webkit? http://stackoverflow.com/a/16459606/376773 return ('WebkitAppearance' in document.documentElement.style) || // is firebug? http://stackoverflow.com/a/398120/376773 (window.console && (console.firebug || (console.exception && console.table))) || // is firefox >= v31? // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages (navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31); } /** * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default. */ exports.formatters.j = function(v) { return JSON.stringify(v); }; /** * Colorize log arguments if enabled. * * @api public */ function formatArgs() { var args = arguments; var useColors = this.useColors; args[0] = (useColors ? '%c' : '') + this.namespace + (useColors ? ' %c' : ' ') + args[0] + (useColors ? '%c ' : ' ') + '+' + exports.humanize(this.diff); if (!useColors) return args; var c = 'color: ' + this.color; args = [args[0], c, 'color: inherit'].concat(Array.prototype.slice.call(args, 1)); // the final "%c" is somewhat tricky, because there could be other // arguments passed either before or after the %c, so we need to // figure out the correct index to insert the CSS into var index = 0; var lastC = 0; args[0].replace(/%[a-z%]/g, function(match) { if ('%%' === match) return; index++; if ('%c' === match) { // we only are interested in the *last* %c // (the user may have provided their own) lastC = index; } }); args.splice(lastC, 0, c); return args; } /** * Invokes `console.log()` when available. * No-op when `console.log` is not a "function". * * @api public */ function log() { // this hackery is required for IE8/9, where // the `console.log` function doesn't have 'apply' return 'object' === typeof console && console.log && Function.prototype.apply.call(console.log, console, arguments); } /** * Save `namespaces`. * * @param {String} namespaces * @api private */ function save(namespaces) { try { if (null == namespaces) { exports.storage.removeItem('debug'); } else { exports.storage.debug = namespaces; } } catch(e) {} } /** * Load `namespaces`. * * @return {String} returns the previously persisted debug modes * @api private */ function load() { var r; try { r = exports.storage.debug; } catch(e) {} return r; } /** * Enable namespaces listed in `localStorage.debug` initially. */ exports.enable(load()); /** * Localstorage attempts to return the localstorage. * * This is necessary because safari throws * when a user disables cookies/localstorage * and you attempt to access it. * * @return {LocalStorage} * @api private */ function localstorage(){ try { return window.localStorage; } catch (e) {} } },{"./debug":2}],2:[function(require,module,exports){ /** * This is the common logic for both the Node.js and web browser * implementations of `debug()`. * * Expose `debug()` as the module. */ exports = module.exports = debug; exports.coerce = coerce; exports.disable = disable; exports.enable = enable; exports.enabled = enabled; exports.humanize = require('ms'); /** * The currently active debug mode names, and names to skip. */ exports.names = []; exports.skips = []; /** * Map of special "%n" handling functions, for the debug "format" argument. * * Valid key names are a single, lowercased letter, i.e. "n". */ exports.formatters = {}; /** * Previously assigned color. */ var prevColor = 0; /** * Previous log timestamp. */ var prevTime; /** * Select a color. * * @return {Number} * @api private */ function selectColor() { return exports.colors[prevColor++ % exports.colors.length]; } /** * Create a debugger with the given `namespace`. * * @param {String} namespace * @return {Function} * @api public */ function debug(namespace) { // define the `disabled` version function disabled() { } disabled.enabled = false; // define the `enabled` version function enabled() { var self = enabled; // set `diff` timestamp var curr = +new Date(); var ms = curr - (prevTime || curr); self.diff = ms; self.prev = prevTime; self.curr = curr; prevTime = curr; // add the `color` if not set if (null == self.useColors) self.useColors = exports.useColors(); if (null == self.color && self.useColors) self.color = selectColor(); var args = Array.prototype.slice.call(arguments); args[0] = exports.coerce(args[0]); if ('string' !== typeof args[0]) { // anything else let's inspect with %o args = ['%o'].concat(args); } // apply any `formatters` transformations var index = 0; args[0] = args[0].replace(/%([a-z%])/g, function(match, format) { // if we encounter an escaped % then don't increase the array index if (match === '%%') return match; index++; var formatter = exports.formatters[format]; if ('function' === typeof formatter) { var val = args[index]; match = formatter.call(self, val); // now we need to remove `args[index]` since it's inlined in the `format` args.splice(index, 1); index--; } return match; }); if ('function' === typeof exports.formatArgs) { args = exports.formatArgs.apply(self, args); } var logFn = enabled.log || exports.log || console.log.bind(console); logFn.apply(self, args); } enabled.enabled = true; var fn = exports.enabled(namespace) ? enabled : disabled; fn.namespace = namespace; return fn; } /** * Enables a debug mode by namespaces. This can include modes * separated by a colon and wildcards. * * @param {String} namespaces * @api public */ function enable(namespaces) { exports.save(namespaces); var split = (namespaces || '').split(/[\s,]+/); var len = split.length; for (var i = 0; i < len; i++) { if (!split[i]) continue; // ignore empty strings namespaces = split[i].replace(/\*/g, '.*?'); if (namespaces[0] === '-') { exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$')); } else { exports.names.push(new RegExp('^' + namespaces + '$')); } } } /** * Disable debug output. * * @api public */ function disable() { exports.enable(''); } /** * Returns true if the given mode name is enabled, false otherwise. * * @param {String} name * @return {Boolean} * @api public */ function enabled(name) { var i, len; for (i = 0, len = exports.skips.length; i < len; i++) { if (exports.skips[i].test(name)) { return false; } } for (i = 0, len = exports.names.length; i < len; i++) { if (exports.names[i].test(name)) { return true; } } return false; } /** * Coerce `val`. * * @param {Mixed} val * @return {Mixed} * @api private */ function coerce(val) { if (val instanceof Error) return val.stack || val.message; return val; } },{"ms":21}],3:[function(require,module,exports){ /* jshint node: true */ 'use strict'; var normalice = require('normalice'); /** # freeice The `freeice` module is a simple way of getting random STUN or TURN server for your WebRTC application. The list of servers (just STUN at this stage) were sourced from this [gist](https://gist.github.com/zziuni/3741933). ## Example Use The following demonstrates how you can use `freeice` with [rtc-quickconnect](https://github.com/rtc-io/rtc-quickconnect): <<< examples/quickconnect.js As the `freeice` module generates ice servers in a list compliant with the WebRTC spec you will be able to use it with raw `RTCPeerConnection` constructors and other WebRTC libraries. ## Hey, don't use my STUN/TURN server! If for some reason your free STUN or TURN server ends up in the list of servers ([stun](https://github.com/DamonOehlman/freeice/blob/master/stun.json) or [turn](https://github.com/DamonOehlman/freeice/blob/master/turn.json)) that is used in this module, you can feel free to open an issue on this repository and those servers will be removed within 24 hours (or sooner). This is the quickest and probably the most polite way to have something removed (and provides us some visibility if someone opens a pull request requesting that a server is added). ## Please add my server! If you have a server that you wish to add to the list, that's awesome! I'm sure I speak on behalf of a whole pile of WebRTC developers who say thanks. To get it into the list, feel free to either open a pull request or if you find that process a bit daunting then just create an issue requesting the addition of the server (make sure you provide all the details, and if you have a Terms of Service then including that in the PR/issue would be awesome). ## I know of a free server, can I add it? Sure, if you do your homework and make sure it is ok to use (I'm currently in the process of reviewing the terms of those STUN servers included from the original list). If it's ok to go, then please see the previous entry for how to add it. ## Current List of Servers * current as at the time of last `README.md` file generation ### STUN <<< stun.json ### TURN <<< turn.json **/ var freeice = module.exports = function(opts) { // if a list of servers has been provided, then use it instead of defaults var servers = { stun: (opts || {}).stun || require('./stun.json'), turn: (opts || {}).turn || require('./turn.json') }; var stunCount = (opts || {}).stunCount || 2; var turnCount = (opts || {}).turnCount || 0; var selected; function getServers(type, count) { var out = []; var input = [].concat(servers[type]); var idx; while (input.length && out.length < count) { idx = (Math.random() * input.length) | 0; out = out.concat(input.splice(idx, 1)); } return out.map(function(url) { //If it's a not a string, don't try to "normalice" it otherwise using type:url will screw it up if ((typeof url !== 'string') && (! (url instanceof String))) { return url; } else { return normalice(type + ':' + url); } }); } // add stun servers selected = [].concat(getServers('stun', stunCount)); if (turnCount) { selected = selected.concat(getServers('turn', turnCount)); } return selected; }; },{"./stun.json":4,"./turn.json":5,"normalice":22}],4:[function(require,module,exports){ module.exports=[ "stun.l.google.com:19302", "stun1.l.google.com:19302", "stun2.l.google.com:19302", "stun3.l.google.com:19302", "stun4.l.google.com:19302", "stun.ekiga.net", "stun.ideasip.com", "stun.schlund.de", "stun.stunprotocol.org:3478", "stun.voiparound.com", "stun.voipbuster.com", "stun.voipstunt.com", "stun.voxgratia.org", "stun.services.mozilla.com" ] },{}],5:[function(require,module,exports){ module.exports=[] },{}],6:[function(require,module,exports){ var WildEmitter = require('wildemitter'); function getMaxVolume (analyser, fftBins) { var maxVolume = -Infinity; analyser.getFloatFrequencyData(fftBins); for(var i=4, ii=fftBins.length; i < ii; i++) { if (fftBins[i] > maxVolume && fftBins[i] < 0) { maxVolume = fftBins[i]; } }; return maxVolume; } var audioContextType = window.AudioContext || window.webkitAudioContext; // use a single audio context due to hardware limits var audioContext = null; module.exports = function(stream, options) { var harker = new WildEmitter(); // make it not break in non-supported browsers if (!audioContextType) return harker; //Config var options = options || {}, smoothing = (options.smoothing || 0.1), interval = (options.interval || 50), threshold = options.threshold, play = options.play, history = options.history || 10, running = true; //Setup Audio Context if (!audioContext) { audioContext = new audioContextType(); } var sourceNode, fftBins, analyser; analyser = audioContext.createAnalyser(); analyser.fftSize = 512; analyser.smoothingTimeConstant = smoothing; fftBins = new Float32Array(analyser.fftSize); if (stream.jquery) stream = stream[0]; if (stream instanceof HTMLAudioElement || stream instanceof HTMLVideoElement) { //Audio Tag sourceNode = audioContext.createMediaElementSource(stream); if (typeof play === 'undefined') play = true; threshold = threshold || -50; } else { //WebRTC Stream sourceNode = audioContext.createMediaStreamSource(stream); threshold = threshold || -50; } sourceNode.connect(analyser); if (play) analyser.connect(audioContext.destination); harker.speaking = false; harker.setThreshold = function(t) { threshold = t; }; harker.setInterval = function(i) { interval = i; }; harker.stop = function() { running = false; harker.emit('volume_change', -100, threshold); if (harker.speaking) { harker.speaking = false; harker.emit('stopped_speaking'); } }; harker.speakingHistory = []; for (var i = 0; i < history; i++) { harker.speakingHistory.push(0); } // Poll the analyser node to determine if speaking // and emit events if changed var looper = function() { setTimeout(function() { //check if stop has been called if(!running) { return; } var currentVolume = getMaxVolume(analyser, fftBins); harker.emit('volume_change', currentVolume, threshold); var history = 0; if (currentVolume > threshold && !harker.speaking) { // trigger quickly, short history for (var i = harker.speakingHistory.length - 3; i < harker.speakingHistory.length; i++) { history += harker.speakingHistory[i]; } if (history >= 2) { harker.speaking = true; harker.emit('speaking'); } } else if (currentVolume < threshold && harker.speaking) { for (var i = 0; i < harker.speakingHistory.length; i++) { history += harker.speakingHistory[i]; } if (history == 0) { harker.speaking = false; harker.emit('stopped_speaking'); } } harker.speakingHistory.shift(); harker.speakingHistory.push(0 + (currentVolume > threshold)); looper(); }, interval); }; looper(); return harker; } },{"wildemitter":101}],7:[function(require,module,exports){ if (typeof Object.create === 'function') { // implementation from standard node.js 'util' module module.exports = function inherits(ctor, superCtor) { ctor.super_ = superCtor ctor.prototype = Object.create(superCtor.prototype, { constructor: { value: ctor, enumerable: false, writable: true, configurable: true } }); }; } else { // old school shim for old browsers module.exports = function inherits(ctor, superCtor) { ctor.super_ = superCtor var TempCtor = function () {} TempCtor.prototype = superCtor.prototype ctor.prototype = new TempCtor() ctor.prototype.constructor = ctor } } },{}],8:[function(require,module,exports){ (function (global){ /*! JSON v3.3.2 | http://bestiejs.github.io/json3 | Copyright 2012-2014, Kit Cambridge | http://kit.mit-license.org */ ;(function () { // Detect the `define` function exposed by asynchronous module loaders. The // strict `define` check is necessary for compatibility with `r.js`. var isLoader = typeof define === "function" && define.amd; // A set of types used to distinguish objects from primitives. var objectTypes = { "function": true, "object": true }; // Detect the `exports` object exposed by CommonJS implementations. var freeExports = objectTypes[typeof exports] && exports && !exports.nodeType && exports; // Use the `global` object exposed by Node (including Browserify via // `insert-module-globals`), Narwhal, and Ringo as the default context, // and the `window` object in browsers. Rhino exports a `global` function // instead. var root = objectTypes[typeof window] && window || this, freeGlobal = freeExports && objectTypes[typeof module] && module && !module.nodeType && typeof global == "object" && global; if (freeGlobal && (freeGlobal["global"] === freeGlobal || freeGlobal["window"] === freeGlobal || freeGlobal["self"] === freeGlobal)) { root = freeGlobal; } // Public: Initializes JSON 3 using the given `context` object, attaching the // `stringify` and `parse` functions to the specified `exports` object. function runInContext(context, exports) { context || (context = root["Object"]()); exports || (exports = root["Object"]()); // Native constructor aliases. var Number = context["Number"] || root["Number"], String = context["String"] || root["String"], Object = context["Object"] || root["Object"], Date = context["Date"] || root["Date"], SyntaxError = context["SyntaxError"] || root["SyntaxError"], TypeError = context["TypeError"] || root["TypeError"], Math = context["Math"] || root["Math"], nativeJSON = context["JSON"] || root["JSON"]; // Delegate to the native `stringify` and `parse` implementations. if (typeof nativeJSON == "object" && nativeJSON) { exports.stringify = nativeJSON.stringify; exports.parse = nativeJSON.parse; } // Convenience aliases. var objectProto = Object.prototype, getClass = objectProto.toString, isProperty, forEach, undef; // Test the `Date#getUTC*` methods. Based on work by @Yaffle. var isExtended = new Date(-3509827334573292); try { // The `getUTCFullYear`, `Month`, and `Date` methods return nonsensical // results for certain dates in Opera >= 10.53. isExtended = isExtended.getUTCFullYear() == -109252 && isExtended.getUTCMonth() === 0 && isExtended.getUTCDate() === 1 && // Safari < 2.0.2 stores the internal millisecond time value correctly, // but clips the values returned by the date methods to the range of // signed 32-bit integers ([-2 ** 31, 2 ** 31 - 1]). isExtended.getUTCHours() == 10 && isExtended.getUTCMinutes() == 37 && isExtended.getUTCSeconds() == 6 && isExtended.getUTCMilliseconds() == 708; } catch (exception) {} // Internal: Determines whether the native `JSON.stringify` and `parse` // implementations are spec-compliant. Based on work by Ken Snyder. function has(name) { if (has[name] !== undef) { // Return cached feature test result. return has[name]; } var isSupported; if (name == "bug-string-char-index") { // IE <= 7 doesn't support accessing string characters using square // bracket notation. IE 8 only supports this for primitives. isSupported = "a"[0] != "a"; } else if (name == "json") { // Indicates whether both `JSON.stringify` and `JSON.parse` are // supported. isSupported = has("json-stringify") && has("json-parse"); } else { var value, serialized = '{"a":[1,true,false,null,"\\u0000\\b\\n\\f\\r\\t"]}'; // Test `JSON.stringify`. if (name == "json-stringify") { var stringify = exports.stringify, stringifySupported = typeof stringify == "function" && isExtended; if (stringifySupported) { // A test function object with a custom `toJSON` method. (value = function () { return 1; }).toJSON = value; try { stringifySupported = // Firefox 3.1b1 and b2 serialize string, number, and boolean // primitives as object literals. stringify(0) === "0" && // FF 3.1b1, b2, and JSON 2 serialize wrapped primitives as object // literals. stringify(new Number()) === "0" && stringify(new String()) == '""' && // FF 3.1b1, 2 throw an error if the value is `null`, `undefined`, or // does not define a canonical JSON representation (this applies to // objects with `toJSON` properties as well, *unless* they are nested // within an object or array). stringify(getClass) === undef && // IE 8 serializes `undefined` as `"undefined"`. Safari <= 5.1.7 and // FF 3.1b3 pass this test. stringify(undef) === undef && // Safari <= 5.1.7 and FF 3.1b3 throw `Error`s and `TypeError`s, // respectively, if the value is omitted entirely. stringify() === undef && // FF 3.1b1, 2 throw an error if the given value is not a number, // string, array, object, Boolean, or `null` literal. This applies to // objects with custom `toJSON` methods as well, unless they are nested // inside object or array literals. YUI 3.0.0b1 ignores custom `toJSON` // methods entirely. stringify(value) === "1" && stringify([value]) == "[1]" && // Prototype <= 1.6.1 serializes `[undefined]` as `"[]"` instead of // `"[null]"`. stringify([undef]) == "[null]" && // YUI 3.0.0b1 fails to serialize `null` literals. stringify(null) == "null" && // FF 3.1b1, 2 halts serialization if an array contains a function: // `[1, true, getClass, 1]` serializes as "[1,true,],". FF 3.1b3 // elides non-JSON values from objects and arrays, unless they // define custom `toJSON` methods. stringify([undef, getClass, null]) == "[null,null,null]" && // Simple serialization test. FF 3.1b1 uses Unicode escape sequences // where character escape codes are expected (e.g., `\b` => `\u0008`). stringify({ "a": [value, true, false, null, "\x00\b\n\f\r\t"] }) == serialized && // FF 3.1b1 and b2 ignore the `filter` and `width` arguments. stringify(null, value) === "1" && stringify([1, 2], null, 1) == "[\n 1,\n 2\n]" && // JSON 2, Prototype <= 1.7, and older WebKit builds incorrectly // serialize extended years. stringify(new Date(-8.64e15)) == '"-271821-04-20T00:00:00.000Z"' && // The milliseconds are optional in ES 5, but required in 5.1. stringify(new Date(8.64e15)) == '"+275760-09-13T00:00:00.000Z"' && // Firefox <= 11.0 incorrectly serializes years prior to 0 as negative // four-digit years instead of six-digit years. Credits: @Yaffle. stringify(new Date(-621987552e5)) == '"-000001-01-01T00:00:00.000Z"' && // Safari <= 5.1.5 and Opera >= 10.53 incorrectly serialize millisecond // values less than 1000. Credits: @Yaffle. stringify(new Date(-1)) == '"1969-12-31T23:59:59.999Z"'; } catch (exception) { stringifySupported = false; } } isSupported = stringifySupported; } // Test `JSON.parse`. if (name == "json-parse") { var parse = exports.parse; if (typeof parse == "function") { try { // FF 3.1b1, b2 will throw an exception if a bare literal is provided. // Conforming implementations should also coerce the initial argument to // a string prior to parsing. if (parse("0") === 0 && !parse(false)) { // Simple parsing test. value = parse(serialized); var parseSupported = value["a"].length == 5 && value["a"][0] === 1; if (parseSupported) { try { // Safari <= 5.1.2 and FF 3.1b1 allow unescaped tabs in strings. parseSupported = !parse('"\t"'); } catch (exception) {} if (parseSupported) { try { // FF 4.0 and 4.0.1 allow leading `+` signs and leading // decimal points. FF 4.0, 4.0.1, and IE 9-10 also allow // certain octal literals. parseSupported = parse("01") !== 1; } catch (exception) {} } if (parseSupported) { try { // FF 4.0, 4.0.1, and Rhino 1.7R3-R4 allow trailing decimal // points. These environments, along with FF 3.1b1 and 2, // also allow trailing commas in JSON objects and arrays. parseSupported = parse("1.") !== 1; } catch (exception) {} } } } } catch (exception) { parseSupported = false; } } isSupported = parseSupported; } } return has[name] = !!isSupported; } if (!has("json")) { // Common `[[Class]]` name aliases. var functionClass = "[object Function]", dateClass = "[object Date]", numberClass = "[object Number]", stringClass = "[object String]", arrayClass = "[object Array]", booleanClass = "[object Boolean]"; // Detect incomplete support for accessing string characters by index. var charIndexBuggy = has("bug-string-char-index"); // Define additional utility methods if the `Date` methods are buggy. if (!isExtended) { var floor = Math.floor; // A mapping between the months of the year and the number of days between // January 1st and the first of the respective month. var Months = [0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334]; // Internal: Calculates the number of days between the Unix epoch and the // first day of the given month. var getDay = function (year, month) { return Months[month] + 365 * (year - 1970) + floor((year - 1969 + (month = +(month > 1))) / 4) - floor((year - 1901 + month) / 100) + floor((year - 1601 + month) / 400); }; } // Internal: Determines if a property is a direct property of the given // object. Delegates to the native `Object#hasOwnProperty` method. if (!(isProperty = objectProto.hasOwnProperty)) { isProperty = function (property) { var members = {}, constructor; if ((members.__proto__ = null, members.__proto__ = { // The *proto* property cannot be set multiple times in recent // versions of Firefox and SeaMonkey. "toString": 1 }, members).toString != getClass) { // Safari <= 2.0.3 doesn't implement `Object#hasOwnProperty`, but // supports the mutable *proto* property. isProperty = function (property) { // Capture and break the object's prototype chain (see section 8.6.2 // of the ES 5.1 spec). The parenthesized expression prevents an // unsafe transformation by the Closure Compiler. var original = this.__proto__, result = property in (this.__proto__ = null, this); // Restore the original prototype chain. this.__proto__ = original; return result; }; } else { // Capture a reference to the top-level `Object` constructor. constructor = members.constructor; // Use the `constructor` property to simulate `Object#hasOwnProperty` in // other environments. isProperty = function (property) { var parent = (this.constructor || constructor).prototype; return property in this && !(property in parent && this[property] === parent[property]); }; } members = null; return isProperty.call(this, property); }; } // Internal: Normalizes the `for...in` iteration algorithm across // environments. Each enumerated key is yielded to a `callback` function. forEach = function (object, callback) { var size = 0, Properties, members, property; // Tests for bugs in the current environment's `for...in` algorithm. The // `valueOf` property inherits the non-enumerable flag from // `Object.prototype` in older versions of IE, Netscape, and Mozilla. (Properties = function () { this.valueOf = 0; }).prototype.valueOf = 0; // Iterate over a new instance of the `Properties` class. members = new Properties(); for (property in members) { // Ignore all properties inherited from `Object.prototype`. if (isProperty.call(members, property)) { size++; } } Properties = members = null; // Normalize the iteration algorithm. if (!size) { // A list of non-enumerable properties inherited from `Object.prototype`. members = ["valueOf", "toString", "toLocaleString", "propertyIsEnumerable", "isPrototypeOf", "hasOwnProperty", "constructor"]; // IE <= 8, Mozilla 1.0, and Netscape 6.2 ignore shadowed non-enumerable // properties. forEach = function (object, callback) { var isFunction = getClass.call(object) == functionClass, property, length; var hasProperty = !isFunction && typeof object.constructor != "function" && objectTypes[typeof object.hasOwnProperty] && object.hasOwnProperty || isProperty; for (property in object) { // Gecko <= 1.0 enumerates the `prototype` property of functions under // certain conditions; IE does not. if (!(isFunction && property == "prototype") && hasProperty.call(object, property)) { callback(property); } } // Manually invoke the callback for each non-enumerable property. for (length = members.length; property = members[--length]; hasProperty.call(object, property) && callback(property)); }; } else if (size == 2) { // Safari <= 2.0.4 enumerates shadowed properties twice. forEach = function (object, callback) { // Create a set of iterated properties. var members = {}, isFunction = getClass.call(object) == functionClass, property; for (property in object) { // Store each property name to prevent double enumeration. The // `prototype` property of functions is not enumerated due to cross- // environment inconsistencies. if (!(isFunction && property == "prototype") && !isProperty.call(members, property) && (members[property] = 1) && isProperty.call(object, property)) { callback(property); } } }; } else { // No bugs detected; use the standard `for...in` algorithm. forEach = function (object, callback) { var isFunction = getClass.call(object) == functionClass, property, isConstructor; for (property in object) { if (!(isFunction && property == "prototype") && isProperty.call(object, property) && !(isConstructor = property === "constructor")) { callback(property); } } // Manually invoke the callback for the `constructor` property due to // cross-environment inconsistencies. if (isConstructor || isProperty.call(object, (property = "constructor"))) { callback(property); } }; } return forEach(object, callback); }; // Public: Serializes a JavaScript `value` as a JSON string. The optional // `filter` argument may specify either a function that alters how object and // array members are serialized, or an array of strings and numbers that // indicates which properties should be serialized. The optional `width` // argument may be either a string or number that specifies the indentation // level of the output. if (!has("json-stringify")) { // Internal: A map of control characters and their escaped equivalents. var Escapes = { 92: "\\\\", 34: '\\"', 8: "\\b", 12: "\\f", 10: "\\n", 13: "\\r", 9: "\\t" }; // Internal: Converts `value` into a zero-padded string such that its // length is at least equal to `width`. The `width` must be <= 6. var leadingZeroes = "000000"; var toPaddedString = function (width, value) { // The `|| 0` expression is necessary to work around a bug in // Opera <= 7.54u2 where `0 == -0`, but `String(-0) !== "0"`. return (leadingZeroes + (value || 0)).slice(-width); }; // Internal: Double-quotes a string `value`, replacing all ASCII control // characters (characters with code unit values between 0 and 31) with // their escaped equivalents. This is an implementation of the // `Quote(value)` operation defined in ES 5.1 section 15.12.3. var unicodePrefix = "\\u00"; var quote = function (value) { var result = '"', index = 0, length = value.length, useCharIndex = !charIndexBuggy || length > 10; var symbols = useCharIndex && (charIndexBuggy ? value.split("") : value); for (; index < length; index++) { var charCode = value.charCodeAt(index); // If the character is a control character, append its Unicode or // shorthand escape sequence; otherwise, append the character as-is. switch (charCode) { case 8: case 9: case 10: case 12: case 13: case 34: case 92: result += Escapes[charCode]; break; default: if (charCode < 32) { result += unicodePrefix + toPaddedString(2, charCode.toString(16)); break; } result += useCharIndex ? symbols[index] : value.charAt(index); } } return result + '"'; }; // Internal: Recursively serializes an object. Implements the // `Str(key, holder)`, `JO(value)`, and `JA(value)` operations. var serialize = function (property, object, callback, properties, whitespace, indentation, stack) { var value, className, year, month, date, time, hours, minutes, seconds, milliseconds, results, element, index, length, prefix, result; try { // Necessary for host object support. value = object[property]; } catch (exception) {} if (typeof value == "object" && value) { className = getClass.call(value); if (className == dateClass && !isProperty.call(value, "toJSON")) { if (value > -1 / 0 && value < 1 / 0) { // Dates are serialized according to the `Date#toJSON` method // specified in ES 5.1 section 15.9.5.44. See section 15.9.1.15 // for the ISO 8601 date time string format. if (getDay) { // Manually compute the year, month, date, hours, minutes, // seconds, and milliseconds if the `getUTC*` methods are // buggy. Adapted from @Yaffle's `date-shim` project. date = floor(value / 864e5); for (year = floor(date / 365.2425) + 1970 - 1; getDay(year + 1, 0) <= date; year++); for (month = floor((date - getDay(year, 0)) / 30.42); getDay(year, month + 1) <= date; month++); date = 1 + date - getDay(year, month); // The `time` value specifies the time within the day (see ES // 5.1 section 15.9.1.2). The formula `(A % B + B) % B` is used // to compute `A modulo B`, as the `%` operator does not // correspond to the `modulo` operation for negative numbers. time = (value % 864e5 + 864e5) % 864e5; // The hours, minutes, seconds, and milliseconds are obtained by // decomposing the time within the day. See section 15.9.1.10. hours = floor(time / 36e5) % 24; minutes = floor(time / 6e4) % 60; seconds = floor(time / 1e3) % 60; milliseconds = time % 1e3; } else { year = value.getUTCFullYear(); month = value.getUTCMonth(); date = value.getUTCDate(); hours = value.getUTCHours(); minutes = value.getUTCMinutes(); seconds = value.getUTCSeconds(); milliseconds = value.getUTCMilliseconds(); } // Serialize extended years correctly. value = (year <= 0 || year >= 1e4 ? (year < 0 ? "-" : "+") + toPaddedString(6, year < 0 ? -year : year) : toPaddedString(4, year)) + "-" + toPaddedString(2, month + 1) + "-" + toPaddedString(2, date) + // Months, dates, hours, minutes, and seconds should have two // digits; milliseconds should have three. "T" + toPaddedString(2, hours) + ":" + toPaddedString(2, minutes) + ":" + toPaddedString(2, seconds) + // Milliseconds are optional in ES 5.0, but required in 5.1. "." + toPaddedString(3, milliseconds) + "Z"; } else { value = null; } } else if (typeof value.toJSON == "function" && ((className != numberClass && className != stringClass && className != arrayClass) || isProperty.call(value, "toJSON"))) { // Prototype <= 1.6.1 adds non-standard `toJSON` methods to the // `Number`, `String`, `Date`, and `Array` prototypes. JSON 3 // ignores all `toJSON` methods on these objects unless they are // defined directly on an instance. value = value.toJSON(property); } } if (callback) { // If a replacement function was provided, call it to obtain the value // for serialization. value = callback.call(object, property, value); } if (value === null) { return "null"; } className = getClass.call(value); if (className == booleanClass) { // Booleans are represented literally. return "" + value; } else if (className == numberClass) { // JSON numbers must be finite. `Infinity` and `NaN` are serialized as // `"null"`. return value > -1 / 0 && value < 1 / 0 ? "" + value : "null"; } else if (className == stringClass) { // Strings are double-quoted and escaped. return quote("" + value); } // Recursively serialize objects and arrays. if (typeof value == "object") { // Check for cyclic structures. This is a linear search; performance // is inversely proportional to the number of unique nested objects. for (length = stack.length; length--;) { if (stack[length] === value) { // Cyclic structures cannot be serialized by `JSON.stringify`. throw TypeError(); } } // Add the object to the stack of traversed objects. stack.push(value); results = []; // Save the current indentation level and indent one additional level. prefix = indentation; indentation += whitespace; if (className == arrayClass) { // Recursively serialize array elements. for (index = 0, length = value.length; index < length; index++) { element = serialize(index, value, callback, properties, whitespace, indentation, stack); results.push(element === undef ? "null" : element); } result = results.length ? (whitespace ? "[\n" + indentation + results.join(",\n" + indentation) + "\n" + prefix + "]" : ("[" + results.join(",") + "]")) : "[]"; } else { // Recursively serialize object members. Members are selected from // either a user-specified list of property names, or the object // itself. forEach(properties || value, function (property) { var element = serialize(property, value, callback, properties, whitespace, indentation, stack); if (element !== undef) { // According to ES 5.1 section 15.12.3: "If `gap` {whitespace} // is not the empty string, let `member` {quote(property) + ":"} // be the concatenation of `member` and the `space` character." // The "`space` character" refers to the literal space // character, not the `space` {width} argument provided to // `JSON.stringify`. results.push(quote(property) + ":" + (whitespace ? " " : "") + element); } }); result = results.length ? (whitespace ? "{\n" + indentation + results.join(",\n" + indentation) + "\n" + prefix + "}" : ("{" + results.join(",") + "}")) : "{}"; } // Remove the object from the traversed object stack. stack.pop(); return result; } }; // Public: `JSON.stringify`. See ES 5.1 section 15.12.3. exports.stringify = function (source, filter, width) { var whitespace, callback, properties, className; if (objectTypes[typeof filter] && filter) { if ((className = getClass.call(filter)) == functionClass) { callback = filter; } else if (className == arrayClass) { // Convert the property names array into a makeshift set. properties = {}; for (var index = 0, length = filter.length, value; index < length; value = filter[index++], ((className = getClass.call(value)), className == stringClass || className == numberClass) && (properties[value] = 1)); } } if (width) { if ((className = getClass.call(width)) == numberClass) { // Convert the `width` to an integer and create a string containing // `width` number of space characters. if ((width -= width % 1) > 0) { for (whitespace = "", width > 10 && (width = 10); whitespace.length < width; whitespace += " "); } } else if (className == stringClass) { whitespace = width.length <= 10 ? width : width.slice(0, 10); } } // Opera <= 7.54u2 discards the values associated with empty string keys // (`""`) only if they are used directly within an object member list // (e.g., `!("" in { "": 1})`). return serialize("", (value = {}, value[""] = source, value), callback, properties, whitespace, "", []); }; } // Public: Parses a JSON source string. if (!has("json-parse")) { var fromCharCode = String.fromCharCode; // Internal: A map of escaped control characters and their unescaped // equivalents. var Unescapes = { 92: "\\", 34: '"', 47: "/", 98: "\b", 116: "\t", 110: "\n", 102: "\f", 114: "\r" }; // Internal: Stores the parser state. var Index, Source; // Internal: Resets the parser state and throws a `SyntaxError`. var abort = function () { Index = Source = null; throw SyntaxError(); }; // Internal: Returns the next token, or `"$"` if the parser has reached // the end of the source string. A token may be a string, number, `null` // literal, or Boolean literal. var lex = function () { var source = Source, length = source.length, value, begin, position, isSigned, charCode; while (Index < length) { charCode = source.charCodeAt(Index); switch (charCode) { case 9: case 10: case 13: case 32: // Skip whitespace tokens, including tabs, carriage returns, line // feeds, and space characters. Index++; break; case 123: case 125: case 91: case 93: case 58: case 44: // Parse a punctuator token (`{`, `}`, `[`, `]`, `:`, or `,`) at // the current position. value = charIndexBuggy ? source.charAt(Index) : source[Index]; Index++; return value; case 34: // `"` delimits a JSON string; advance to the next character and // begin parsing the string. String tokens are prefixed with the // sentinel `@` character to distinguish them from punctuators and // end-of-string tokens. for (value = "@", Index++; Index < length;) { charCode = source.charCodeAt(Index); if (charCode < 32) { // Unescaped ASCII control characters (those with a code unit // less than the space character) are not permitted. abort(); } else if (charCode == 92) { // A reverse solidus (`\`) marks the beginning of an escaped // control character (including `"`, `\`, and `/`) or Unicode // escape sequence. charCode = source.charCodeAt(++Index); switch (charCode) { case 92: case 34: case 47: case 98: case 116: case 110: case 102: case 114: // Revive escaped control characters. value += Unescapes[charCode]; Index++; break; case 117: // `\u` marks the beginning of a Unicode escape sequence. // Advance to the first character and validate the // four-digit code point. begin = ++Index; for (position = Index + 4; Index < position; Index++) { charCode = source.charCodeAt(Index); // A valid sequence comprises four hexdigits (case- // insensitive) that form a single hexadecimal value. if (!(charCode >= 48 && charCode <= 57 || charCode >= 97 && charCode <= 102 || charCode >= 65 && charCode <= 70)) { // Invalid Unicode escape sequence. abort(); } } // Revive the escaped character. value += fromCharCode("0x" + source.slice(begin, Index)); break; default: // Invalid escape sequence. abort(); } } else { if (charCode == 34) { // An unescaped double-quote character marks the end of the // string. break; } charCode = source.charCodeAt(Index); begin = Index; // Optimize for the common case where a string is valid. while (charCode >= 32 && charCode != 92 && charCode != 34) { charCode = source.charCodeAt(++Index); } // Append the string as-is. value += source.slice(begin, Index); } } if (source.charCodeAt(Index) == 34) { // Advance to the next character and return the revived string. Index++; return value; } // Unterminated string. abort(); default: // Parse numbers and literals. begin = Index; // Advance past the negative sign, if one is specified. if (charCode == 45) { isSigned = true; charCode = source.charCodeAt(++Index); } // Parse an integer or floating-point value. if (charCode >= 48 && charCode <= 57) { // Leading zeroes are interpreted as octal literals. if (charCode == 48 && ((charCode = source.charCodeAt(Index + 1)), charCode >= 48 && charCode <= 57)) { // Illegal octal literal. abort(); } isSigned = false; // Parse the integer component. for (; Index < length && ((charCode = source.charCodeAt(Index)), charCode >= 48 && charCode <= 57); Index++); // Floats cannot contain a leading decimal point; however, this // case is already accounted for by the parser. if (source.charCodeAt(Index) == 46) { position = ++Index; // Parse the decimal component. for (; position < length && ((charCode = source.charCodeAt(position)), charCode >= 48 && charCode <= 57); position++); if (position == Index) { // Illegal trailing decimal. abort(); } Index = position; } // Parse exponents. The `e` denoting the exponent is // case-insensitive. charCode = source.charCodeAt(Index); if (charCode == 101 || charCode == 69) { charCode = source.charCodeAt(++Index); // Skip past the sign following the exponent, if one is // specified. if (charCode == 43 || charCode == 45) { Index++; } // Parse the exponential component. for (position = Index; position < length && ((charCode = source.charCodeAt(position)), charCode >= 48 && charCode <= 57); position++); if (position == Index) { // Illegal empty exponent. abort(); } Index = position; } // Coerce the parsed value to a JavaScript number. return +source.slice(begin, Index); } // A negative sign may only precede numbers. if (isSigned) { abort(); } // `true`, `false`, and `null` literals. if (source.slice(Index, Index + 4) == "true") { Index += 4; return true; } else if (source.slice(Index, Index + 5) == "false") { Index += 5; return false; } else if (source.slice(Index, Index + 4) == "null") { Index += 4; return null; } // Unrecognized token. abort(); } } // Return the sentinel `$` character if the parser has reached the end // of the source string. return "$"; }; // Internal: Parses a JSON `value` token. var get = function (value) { var results, hasMembers; if (value == "$") { // Unexpected end of input. abort(); } if (typeof value == "string") { if ((charIndexBuggy ? value.charAt(0) : value[0]) == "@") { // Remove the sentinel `@` character. return value.slice(1); } // Parse object and array literals. if (value == "[") { // Parses a JSON array, returning a new JavaScript array. results = []; for (;; hasMembers || (hasMembers = true)) { value = lex(); // A closing square bracket marks the end of the array literal. if (value == "]") { break; } // If the array literal contains elements, the current token // should be a comma separating the previous element from the // next. if (hasMembers) { if (value == ",") { value = lex(); if (value == "]") { // Unexpected trailing `,` in array literal. abort(); } } else { // A `,` must separate each array element. abort(); } } // Elisions and leading commas are not permitted. if (value == ",") { abort(); } results.push(get(value)); } return results; } else if (value == "{") { // Parses a JSON object, returning a new JavaScript object. results = {}; for (;; hasMembers || (hasMembers = true)) { value = lex(); // A closing curly brace marks the end of the object literal. if (value == "}") { break; } // If the object literal contains members, the current token // should be a comma separator. if (hasMembers) { if (value == ",") { value = lex(); if (value == "}") { // Unexpected trailing `,` in object literal. abort(); } } else { // A `,` must separate each object member. abort(); } } // Leading commas are not permitted, object property names must be // double-quoted strings, and a `:` must separate each property // name and value. if (value == "," || typeof value != "string" || (charIndexBuggy ? value.charAt(0) : value[0]) != "@" || lex() != ":") { abort(); } results[value.slice(1)] = get(lex()); } return results; } // Unexpected token encountered. abort(); } return value; }; // Internal: Updates a traversed object member. var update = function (source, property, callback) { var element = walk(source, property, callback); if (element === undef) { delete source[property]; } else { source[property] = element; } }; // Internal: Recursively traverses a parsed JSON object, invoking the // `callback` function for each value. This is an implementation of the // `Walk(holder, name)` operation defined in ES 5.1 section 15.12.2. var walk = function (source, property, callback) { var value = source[property], length; if (typeof value == "object" && value) { // `forEach` can't be used to traverse an array in Opera <= 8.54 // because its `Object#hasOwnProperty` implementation returns `false` // for array indices (e.g., `![1, 2, 3].hasOwnProperty("0")`). if (getClass.call(value) == arrayClass) { for (length = value.length; length--;) { update(value, length, callback); } } else { forEach(value, function (property) { update(value, property, callback); }); } } return callback.call(source, property, value); }; // Public: `JSON.parse`. See ES 5.1 section 15.12.2. exports.parse = function (source, callback) { var result, value; Index = 0; Source = "" + source; result = get(lex()); // If a JSON string contains multiple tokens, it is invalid. if (lex() != "$") { abort(); } // Reset the parser state. Index = Source = null; return callback && getClass.call(callback) == functionClass ? walk((value = {}, value[""] = result, value), "", callback) : result; }; } } exports["runInContext"] = runInContext; return exports; } if (freeExports && !isLoader) { // Export for CommonJS environments. runInContext(root, freeExports); } else { // Export for web browsers and JavaScript engines. var nativeJSON = root.JSON, previousJSON = root["JSON3"], isRestored = false; var JSON3 = runInContext(root, (root["JSON3"] = { // Public: Restores the original value of the global `JSON` object and // returns a reference to the `JSON3` object. "noConflict": function () { if (!isRestored) { isRestored = true; root.JSON = nativeJSON; root["JSON3"] = previousJSON; nativeJSON = previousJSON = null; } return JSON3; } })); root.JSON = { "parse": JSON3.parse, "stringify": JSON3.stringify }; } // Export for asynchronous module loaders. if (isLoader) { define(function () { return JSON3; }); } }).call(this); }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) },{}],9:[function(require,module,exports){ function Mapper() { var sources = {}; this.forEach = function(callback) { for(var key in sources) { var source = sources[key]; for(var key2 in source) callback(source[key2]); }; }; this.get = function(id, source) { var ids = sources[source]; if(ids == undefined) return undefined; return ids[id]; }; this.remove = function(id, source) { var ids = sources[source]; if(ids == undefined) return; delete ids[id]; // Check it's empty for(var i in ids){return false} delete sources[source]; }; this.set = function(value, id, source) { if(value == undefined) return this.remove(id, source); var ids = sources[source]; if(ids == undefined) sources[source] = ids = {}; ids[id] = value; }; }; Mapper.prototype.pop = function(id, source) { var value = this.get(id, source); if(value == undefined) return undefined; this.remove(id, source); return value; }; module.exports = Mapper; },{}],10:[function(require,module,exports){ /* * (C) Copyright 2014 Kurento (http://kurento.org/) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * */ var JsonRpcClient = require('./jsonrpcclient'); exports.JsonRpcClient = JsonRpcClient; },{"./jsonrpcclient":11}],11:[function(require,module,exports){ /* * (C) Copyright 2014 Kurento (http://kurento.org/) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * */ var RpcBuilder = require('../..'); var WebSocketWithReconnection = require('./transports/webSocketWithReconnection'); Date.now = Date.now || function() { return +new Date; }; var PING_INTERVAL = 5000; var RECONNECTING = 'RECONNECTING'; var CONNECTED = 'CONNECTED'; var DISCONNECTED = 'DISCONNECTED'; var RECONNECTING = "RECONNECTING"; var CONNECTED = "CONNECTED"; var DISCONNECTED = "DISCONNECTED"; /** * * heartbeat: interval in ms for each heartbeat message, * sendCloseMessage : true / false, before closing the connection, it sends a closeSession message *
 * ws : {
 * 	uri : URI to conntect to,
 *  useSockJS : true (use SockJS) / false (use WebSocket) by default,
 * 	onconnected : callback method to invoke when connection is successful,
 * 	ondisconnect : callback method to invoke when the connection is lost,
 * 	onreconnecting : callback method to invoke when the client is reconnecting,
 * 	onreconnected : callback method to invoke when the client succesfully reconnects,
 * },
 * rpc : {
 * 	requestTimeout : timeout for a request,
 * 	sessionStatusChanged: callback method for changes in session status,
 * 	mediaRenegotiation: mediaRenegotiation
 * }
 * 
*/ function JsonRpcClient(configuration) { var self = this; var wsConfig = configuration.ws; var notReconnectIfNumLessThan = -1; var pingNextNum = 0; var enabledPings = true; var pingPongStarted = false; var pingInterval; var status = DISCONNECTED; var onreconnecting = wsConfig.onreconnecting; var onreconnected = wsConfig.onreconnected; var onconnected = wsConfig.onconnected; configuration.rpc.pull = function(params, request) { request.reply(null, "push"); } wsConfig.onreconnecting = function() { console.log("--------- ONRECONNECTING -----------"); if (status === RECONNECTING) { console.error("Websocket already in RECONNECTING state when receiving a new ONRECONNECTING message. Ignoring it"); return; } status = RECONNECTING; if (onreconnecting) { onreconnecting(); } } wsConfig.onreconnected = function() { console.log("--------- ONRECONNECTED -----------"); if (status === CONNECTED) { console.error("Websocket already in CONNECTED state when receiving a new ONRECONNECTED message. Ignoring it"); return; } status = CONNECTED; enabledPings = true; updateNotReconnectIfLessThan(); usePing(); if (onreconnected) { onreconnected(); } } wsConfig.onconnected = function() { console.log("--------- ONCONNECTED -----------"); if (status === CONNECTED) { console.error("Websocket already in CONNECTED state when receiving a new ONCONNECTED message. Ignoring it"); return; } status = CONNECTED; enabledPings = true; usePing(); if (onconnected) { onconnected(); } } var ws = new WebSocketWithReconnection(wsConfig); console.log('Connecting websocket to URI: ' + wsConfig.uri); var rpcBuilderOptions = { request_timeout: configuration.rpc.requestTimeout }; var rpc = new RpcBuilder(RpcBuilder.packers.JsonRPC, rpcBuilderOptions, ws, function(request) { console.log('Received request: ' + JSON.stringify(request)); try { var func = configuration.rpc[request.method]; if (func === undefined) { console.error("Method " + request.method + " not registered in client"); } else { func(request.params, request); } } catch (err) { console.error('Exception processing request: ' + JSON.stringify(request)); console.error(err); } }); this.send = function(method, params, callback) { if (method !== 'ping') { console.log('Request: method:' + method + " params:" + JSON.stringify(params)); } var requestTime = Date.now(); rpc.encode(method, params, function(error, result) { if (error) { try { console.error("ERROR:" + error.message + " in Request: method:" + method + " params:" + JSON.stringify(params)); if (error.data) { console.error("ERROR DATA:" + JSON.stringify(error.data)); } } catch (e) {} error.requestTime = requestTime; } if (callback) { if (result != undefined && result.value !== 'pong') { console.log('Response: ' + JSON.stringify(result)); } callback(error, result); } }); } function updateNotReconnectIfLessThan() { notReconnectIfNumLessThan = pingNextNum; console.log("notReconnectIfNumLessThan = " + notReconnectIfNumLessThan); } function sendPing() { if (enabledPings) { var params = null; if (pingNextNum == 0 || pingNextNum == notReconnectIfNumLessThan) { params = { interval: PING_INTERVAL }; } pingNextNum++; self.send('ping', params, (function(pingNum) { return function(error, result) { if (error) { if (pingNum > notReconnectIfNumLessThan) { enabledPings = false; updateNotReconnectIfLessThan(); console.log("DSS did not respond to ping message " + pingNum + ". Reconnecting... "); ws.reconnectWs(); } } } })(pingNextNum)); } else { console.log("Trying to send ping, but ping is not enabled"); } } /* * If configuration.hearbeat has any value, the ping-pong will work with the interval * of configuration.hearbeat */ function usePing() { if (!pingPongStarted) { console.log("Starting ping (if configured)") pingPongStarted = true; if (configuration.heartbeat != undefined) { pingInterval = setInterval(sendPing, configuration.heartbeat); sendPing(); } } } this.close = function() { console.log("Closing jsonRpcClient explicitely by client"); if (pingInterval != undefined) { clearInterval(pingInterval); } pingPongStarted = false; enabledPings = false; if (configuration.sendCloseMessage) { this.send('closeSession', null, function(error, result) { if (error) { console.error("Error sending close message: " + JSON.stringify(error)); } ws.close(); }); } else { ws.close(); } } // This method is only for testing this.forceClose = function(millis) { ws.forceClose(millis); } this.reconnect = function() { ws.reconnectWs(); } } module.exports = JsonRpcClient; },{"../..":14,"./transports/webSocketWithReconnection":13}],12:[function(require,module,exports){ /* * (C) Copyright 2014 Kurento (http://kurento.org/) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * */ var WebSocketWithReconnection = require('./webSocketWithReconnection'); exports.WebSocketWithReconnection = WebSocketWithReconnection; },{"./webSocketWithReconnection":13}],13:[function(require,module,exports){ /* * (C) Copyright 2013-2015 Kurento (http://kurento.org/) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ "use strict"; var WebSocket = require('ws'); var SockJS = require('sockjs-client'); var MAX_RETRIES = 2000; // Forever... var RETRY_TIME_MS = 3000; // FIXME: Implement exponential wait times... var PING_INTERVAL = 5000; var PING_MSG = JSON.stringify({ 'method': 'ping' }); var CONNECTING = 0; var OPEN = 1; var CLOSING = 2; var CLOSED = 3; /* config = { uri : wsUri, useSockJS : true (use SockJS) / false (use WebSocket) by default, onconnected : callback method to invoke when connection is successful, ondisconnect : callback method to invoke when the connection is lost, onreconnecting : callback method to invoke when the client is reconnecting, onreconnected : callback method to invoke when the client succesfully reconnects, }; */ function WebSocketWithReconnection(config) { var closing = false; var registerMessageHandler; var wsUri = config.uri; var useSockJS = config.useSockJS; var reconnecting = false; var forcingDisconnection = false; var ws; if (useSockJS) { ws = new SockJS(wsUri); } else { ws = new WebSocket(wsUri); } ws.onopen = function() { logConnected(ws, wsUri); config.onconnected(); }; ws.onerror = function(evt) { config.onconnected(evt.data); }; function logConnected(ws, wsUri) { try { console.log("WebSocket connected to " + wsUri); } catch (e) { console.error(e); } } var reconnectionOnClose = function() { if (ws.readyState === CLOSED) { if (closing) { console.log("Connection Closed by user"); } else { console.log("Connection closed unexpectecly. Reconnecting..."); reconnectInNewUri(MAX_RETRIES, 1); } } else { console.log("Close callback from previous websocket. Ignoring it"); } }; ws.onclose = reconnectionOnClose; function reconnectInNewUri(maxRetries, numRetries) { console.log("reconnectInNewUri"); if (numRetries === 1) { if (reconnecting) { console .warn("Trying to reconnect when reconnecting... Ignoring this reconnection.") return; } else { reconnecting = true; } if (config.onreconnecting) { config.onreconnecting(); } } if (forcingDisconnection) { reconnect(maxRetries, numRetries, wsUri); } else { if (config.newWsUriOnReconnection) { config.newWsUriOnReconnection(function(error, newWsUri) { if (error) { console.log(error); setTimeout(function() { reconnectInNewUri(maxRetries, numRetries + 1); }, RETRY_TIME_MS); } else { reconnect(maxRetries, numRetries, newWsUri); } }) } else { reconnect(maxRetries, numRetries, wsUri); } } } // TODO Test retries. How to force not connection? function reconnect(maxRetries, numRetries, reconnectWsUri) { console.log("Trying to reconnect " + numRetries + " times"); var newWs; if (useSockJS) { newWs = new SockJS(wsUri); } else { newWs = new WebSocket(wsUri); } newWs.onopen = function() { console.log("Reconnected in " + numRetries + " retries..."); logConnected(newWs, reconnectWsUri); reconnecting = false; registerMessageHandler(); if (config.onreconnected()) { config.onreconnected(); } newWs.onclose = reconnectionOnClose; }; var onErrorOrClose = function(error) { console.log("Reconnection error: ", error); if (numRetries === maxRetries) { if (config.ondisconnect) { config.ondisconnect(); } } else { setTimeout(function() { reconnectInNewUri(maxRetries, numRetries + 1); }, RETRY_TIME_MS); } }; newWs.onerror = onErrorOrClose; ws = newWs; } this.close = function() { closing = true; ws.close(); }; // This method is only for testing this.forceClose = function(millis) { console.log("Testing: Force WebSocket close"); if (millis) { console.log("Testing: Change wsUri for " + millis + " millis to simulate net failure"); var goodWsUri = wsUri; wsUri = "wss://21.234.12.34.4:443/"; forcingDisconnection = true; setTimeout(function() { console.log("Testing: Recover good wsUri " + goodWsUri); wsUri = goodWsUri; forcingDisconnection = false; }, millis); } ws.close(); }; this.reconnectWs = function() { console.log("reconnectWs"); reconnectInNewUri(MAX_RETRIES, 1, wsUri); }; this.send = function(message) { ws.send(message); }; this.addEventListener = function(type, callback) { registerMessageHandler = function() { ws.addEventListener(type, callback); }; registerMessageHandler(); }; } module.exports = WebSocketWithReconnection; },{"sockjs-client":34,"ws":103}],14:[function(require,module,exports){ /* * (C) Copyright 2014 Kurento (http://kurento.org/) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * */ var defineProperty_IE8 = false if(Object.defineProperty) { try { Object.defineProperty({}, "x", {}); } catch(e) { defineProperty_IE8 = true } } // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/bind if (!Function.prototype.bind) { Function.prototype.bind = function(oThis) { if (typeof this !== 'function') { // closest thing possible to the ECMAScript 5 // internal IsCallable function throw new TypeError('Function.prototype.bind - what is trying to be bound is not callable'); } var aArgs = Array.prototype.slice.call(arguments, 1), fToBind = this, fNOP = function() {}, fBound = function() { return fToBind.apply(this instanceof fNOP && oThis ? this : oThis, aArgs.concat(Array.prototype.slice.call(arguments))); }; fNOP.prototype = this.prototype; fBound.prototype = new fNOP(); return fBound; }; } var EventEmitter = require('events').EventEmitter; var inherits = require('inherits'); var packers = require('./packers'); var Mapper = require('./Mapper'); var BASE_TIMEOUT = 5000; function unifyResponseMethods(responseMethods) { if(!responseMethods) return {}; for(var key in responseMethods) { var value = responseMethods[key]; if(typeof value == 'string') responseMethods[key] = { response: value } }; return responseMethods; }; function unifyTransport(transport) { if(!transport) return; // Transport as a function if(transport instanceof Function) return {send: transport}; // WebSocket & DataChannel if(transport.send instanceof Function) return transport; // Message API (Inter-window & WebWorker) if(transport.postMessage instanceof Function) { transport.send = transport.postMessage; return transport; } // Stream API if(transport.write instanceof Function) { transport.send = transport.write; return transport; } // Transports that only can receive messages, but not send if(transport.onmessage !== undefined) return; if(transport.pause instanceof Function) return; throw new SyntaxError("Transport is not a function nor a valid object"); }; /** * Representation of a RPC notification * * @class * * @constructor * * @param {String} method -method of the notification * @param params - parameters of the notification */ function RpcNotification(method, params) { if(defineProperty_IE8) { this.method = method this.params = params } else { Object.defineProperty(this, 'method', {value: method, enumerable: true}); Object.defineProperty(this, 'params', {value: params, enumerable: true}); } }; /** * @class * * @constructor * * @param {object} packer * * @param {object} [options] * * @param {object} [transport] * * @param {Function} [onRequest] */ function RpcBuilder(packer, options, transport, onRequest) { var self = this; if(!packer) throw new SyntaxError('Packer is not defined'); if(!packer.pack || !packer.unpack) throw new SyntaxError('Packer is invalid'); var responseMethods = unifyResponseMethods(packer.responseMethods); if(options instanceof Function) { if(transport != undefined) throw new SyntaxError("There can't be parameters after onRequest"); onRequest = options; transport = undefined; options = undefined; }; if(options && options.send instanceof Function) { if(transport && !(transport instanceof Function)) throw new SyntaxError("Only a function can be after transport"); onRequest = transport; transport = options; options = undefined; }; if(transport instanceof Function) { if(onRequest != undefined) throw new SyntaxError("There can't be parameters after onRequest"); onRequest = transport; transport = undefined; }; if(transport && transport.send instanceof Function) if(onRequest && !(onRequest instanceof Function)) throw new SyntaxError("Only a function can be after transport"); options = options || {}; EventEmitter.call(this); if(onRequest) this.on('request', onRequest); if(defineProperty_IE8) this.peerID = options.peerID else Object.defineProperty(this, 'peerID', {value: options.peerID}); var max_retries = options.max_retries || 0; function transportMessage(event) { self.decode(event.data || event); }; this.getTransport = function() { return transport; } this.setTransport = function(value) { // Remove listener from old transport if(transport) { // W3C transports if(transport.removeEventListener) transport.removeEventListener('message', transportMessage); // Node.js Streams API else if(transport.removeListener) transport.removeListener('data', transportMessage); }; // Set listener on new transport if(value) { // W3C transports if(value.addEventListener) value.addEventListener('message', transportMessage); // Node.js Streams API else if(value.addListener) value.addListener('data', transportMessage); }; transport = unifyTransport(value); } if(!defineProperty_IE8) Object.defineProperty(this, 'transport', { get: this.getTransport.bind(this), set: this.setTransport.bind(this) }) this.setTransport(transport); var request_timeout = options.request_timeout || BASE_TIMEOUT; var response_timeout = options.response_timeout || BASE_TIMEOUT; var duplicates_timeout = options.duplicates_timeout || BASE_TIMEOUT; var requestID = 0; var requests = new Mapper(); var responses = new Mapper(); var processedResponses = new Mapper(); var message2Key = {}; /** * Store the response to prevent to process duplicate request later */ function storeResponse(message, id, dest) { var response = { message: message, /** Timeout to auto-clean old responses */ timeout: setTimeout(function() { responses.remove(id, dest); }, response_timeout) }; responses.set(response, id, dest); }; /** * Store the response to ignore duplicated messages later */ function storeProcessedResponse(ack, from) { var timeout = setTimeout(function() { processedResponses.remove(ack, from); }, duplicates_timeout); processedResponses.set(timeout, ack, from); }; /** * Representation of a RPC request * * @class * @extends RpcNotification * * @constructor * * @param {String} method -method of the notification * @param params - parameters of the notification * @param {Integer} id - identifier of the request * @param [from] - source of the notification */ function RpcRequest(method, params, id, from, transport) { RpcNotification.call(this, method, params); this.getTransport = function() { return transport; } this.setTransport = function(value) { transport = unifyTransport(value); } if(!defineProperty_IE8) Object.defineProperty(this, 'transport', { get: this.getTransport.bind(this), set: this.setTransport.bind(this) }) var response = responses.get(id, from); /** * @constant {Boolean} duplicated */ if(!(transport || self.getTransport())) { if(defineProperty_IE8) this.duplicated = Boolean(response) else Object.defineProperty(this, 'duplicated', { value: Boolean(response) }); } var responseMethod = responseMethods[method]; this.pack = packer.pack.bind(packer, this, id) /** * Generate a response to this request * * @param {Error} [error] * @param {*} [result] * * @returns {string} */ this.reply = function(error, result, transport) { // Fix optional parameters if(error instanceof Function || error && error.send instanceof Function) { if(result != undefined) throw new SyntaxError("There can't be parameters after callback"); transport = error; result = null; error = undefined; } else if(result instanceof Function || result && result.send instanceof Function) { if(transport != undefined) throw new SyntaxError("There can't be parameters after callback"); transport = result; result = null; }; transport = unifyTransport(transport); // Duplicated request, remove old response timeout if(response) clearTimeout(response.timeout); if(from != undefined) { if(error) error.dest = from; if(result) result.dest = from; }; var message; // New request or overriden one, create new response with provided data if(error || result != undefined) { if(self.peerID != undefined) { if(error) error.from = self.peerID; else result.from = self.peerID; } // Protocol indicates that responses has own request methods if(responseMethod) { if(responseMethod.error == undefined && error) message = { error: error }; else { var method = error ? responseMethod.error : responseMethod.response; message = { method: method, params: error || result }; } } else message = { error: error, result: result }; message = packer.pack(message, id); } // Duplicate & not-overriden request, re-send old response else if(response) message = response.message; // New empty reply, response null value else message = packer.pack({result: null}, id); // Store the response to prevent to process a duplicated request later storeResponse(message, id, from); // Return the stored response so it can be directly send back transport = transport || this.getTransport() || self.getTransport(); if(transport) return transport.send(message); return message; } }; inherits(RpcRequest, RpcNotification); function cancel(message) { var key = message2Key[message]; if(!key) return; delete message2Key[message]; var request = requests.pop(key.id, key.dest); if(!request) return; clearTimeout(request.timeout); // Start duplicated responses timeout storeProcessedResponse(key.id, key.dest); }; /** * Allow to cancel a request and don't wait for a response * * If `message` is not given, cancel all the request */ this.cancel = function(message) { if(message) return cancel(message); for(var message in message2Key) cancel(message); }; this.close = function() { // Prevent to receive new messages var transport = this.getTransport(); if(transport && transport.close) transport.close(); // Request & processed responses this.cancel(); processedResponses.forEach(clearTimeout); // Responses responses.forEach(function(response) { clearTimeout(response.timeout); }); }; /** * Generates and encode a JsonRPC 2.0 message * * @param {String} method -method of the notification * @param params - parameters of the notification * @param [dest] - destination of the notification * @param {object} [transport] - transport where to send the message * @param [callback] - function called when a response to this request is * received. If not defined, a notification will be send instead * * @returns {string} A raw JsonRPC 2.0 request or notification string */ this.encode = function(method, params, dest, transport, callback) { // Fix optional parameters if(params instanceof Function) { if(dest != undefined) throw new SyntaxError("There can't be parameters after callback"); callback = params; transport = undefined; dest = undefined; params = undefined; } else if(dest instanceof Function) { if(transport != undefined) throw new SyntaxError("There can't be parameters after callback"); callback = dest; transport = undefined; dest = undefined; } else if(transport instanceof Function) { if(callback != undefined) throw new SyntaxError("There can't be parameters after callback"); callback = transport; transport = undefined; }; if(self.peerID != undefined) { params = params || {}; params.from = self.peerID; }; if(dest != undefined) { params = params || {}; params.dest = dest; }; // Encode message var message = { method: method, params: params }; if(callback) { var id = requestID++; var retried = 0; message = packer.pack(message, id); function dispatchCallback(error, result) { self.cancel(message); callback(error, result); }; var request = { message: message, callback: dispatchCallback, responseMethods: responseMethods[method] || {} }; var encode_transport = unifyTransport(transport); function sendRequest(transport) { request.timeout = setTimeout(timeout, request_timeout*Math.pow(2, retried++)); message2Key[message] = {id: id, dest: dest}; requests.set(request, id, dest); transport = transport || encode_transport || self.getTransport(); if(transport) return transport.send(message); return message; }; function retry(transport) { transport = unifyTransport(transport); console.warn(retried+' retry for request message:',message); var timeout = processedResponses.pop(id, dest); clearTimeout(timeout); return sendRequest(transport); }; function timeout() { if(retried < max_retries) return retry(transport); var error = new Error('Request has timed out'); error.request = message; error.retry = retry; dispatchCallback(error) }; return sendRequest(transport); }; // Return the packed message message = packer.pack(message); transport = transport || this.getTransport(); if(transport) return transport.send(message); return message; }; /** * Decode and process a JsonRPC 2.0 message * * @param {string} message - string with the content of the message * * @returns {RpcNotification|RpcRequest|undefined} - the representation of the * notification or the request. If a response was processed, it will return * `undefined` to notify that it was processed * * @throws {TypeError} - Message is not defined */ this.decode = function(message, transport) { if(!message) throw new TypeError("Message is not defined"); try { message = packer.unpack(message); } catch(e) { // Ignore invalid messages return console.log(e, message); }; var id = message.id; var ack = message.ack; var method = message.method; var params = message.params || {}; var from = params.from; var dest = params.dest; // Ignore messages send by us if(self.peerID != undefined && from == self.peerID) return; // Notification if(id == undefined && ack == undefined) { var notification = new RpcNotification(method, params); if(self.emit('request', notification)) return; return notification; }; function processRequest() { // If we have a transport and it's a duplicated request, reply inmediatly transport = unifyTransport(transport) || self.getTransport(); if(transport) { var response = responses.get(id, from); if(response) return transport.send(response.message); }; var idAck = (id != undefined) ? id : ack; var request = new RpcRequest(method, params, idAck, from, transport); if(self.emit('request', request)) return; return request; }; function processResponse(request, error, result) { request.callback(error, result); }; function duplicatedResponse(timeout) { console.warn("Response already processed", message); // Update duplicated responses timeout clearTimeout(timeout); storeProcessedResponse(ack, from); }; // Request, or response with own method if(method) { // Check if it's a response with own method if(dest == undefined || dest == self.peerID) { var request = requests.get(ack, from); if(request) { var responseMethods = request.responseMethods; if(method == responseMethods.error) return processResponse(request, params); if(method == responseMethods.response) return processResponse(request, null, params); return processRequest(); } var processed = processedResponses.get(ack, from); if(processed) return duplicatedResponse(processed); } // Request return processRequest(); }; var error = message.error; var result = message.result; // Ignore responses not send to us if(error && error.dest && error.dest != self.peerID) return; if(result && result.dest && result.dest != self.peerID) return; // Response var request = requests.get(ack, from); if(!request) { var processed = processedResponses.get(ack, from); if(processed) return duplicatedResponse(processed); return console.warn("No callback was defined for this message", message); }; // Process response processResponse(request, error, result); }; }; inherits(RpcBuilder, EventEmitter); RpcBuilder.RpcNotification = RpcNotification; module.exports = RpcBuilder; var clients = require('./clients'); var transports = require('./clients/transports'); RpcBuilder.clients = clients; RpcBuilder.clients.transports = transports; RpcBuilder.packers = packers; },{"./Mapper":9,"./clients":10,"./clients/transports":12,"./packers":17,"events":109,"inherits":7}],15:[function(require,module,exports){ /** * JsonRPC 2.0 packer */ /** * Pack a JsonRPC 2.0 message * * @param {Object} message - object to be packaged. It requires to have all the * fields needed by the JsonRPC 2.0 message that it's going to be generated * * @return {String} - the stringified JsonRPC 2.0 message */ function pack(message, id) { var result = { jsonrpc: "2.0" }; // Request if(message.method) { result.method = message.method; if(message.params) result.params = message.params; // Request is a notification if(id != undefined) result.id = id; } // Response else if(id != undefined) { if(message.error) { if(message.result !== undefined) throw new TypeError("Both result and error are defined"); result.error = message.error; } else if(message.result !== undefined) result.result = message.result; else throw new TypeError("No result or error is defined"); result.id = id; }; return JSON.stringify(result); }; /** * Unpack a JsonRPC 2.0 message * * @param {String} message - string with the content of the JsonRPC 2.0 message * * @throws {TypeError} - Invalid JsonRPC version * * @return {Object} - object filled with the JsonRPC 2.0 message content */ function unpack(message) { var result = message; if(typeof message === 'string' || message instanceof String) result = JSON.parse(message); // Check if it's a valid message var version = result.jsonrpc; if(version !== '2.0') throw new TypeError("Invalid JsonRPC version '" + version + "': " + message); // Response if(result.method == undefined) { if(result.id == undefined) throw new TypeError("Invalid message: "+message); var result_defined = result.result !== undefined; var error_defined = result.error !== undefined; // Check only result or error is defined, not both or none if(result_defined && error_defined) throw new TypeError("Both result and error are defined: "+message); if(!result_defined && !error_defined) throw new TypeError("No result or error is defined: "+message); result.ack = result.id; delete result.id; } // Return unpacked message return result; }; exports.pack = pack; exports.unpack = unpack; },{}],16:[function(require,module,exports){ function pack(message) { throw new TypeError("Not yet implemented"); }; function unpack(message) { throw new TypeError("Not yet implemented"); }; exports.pack = pack; exports.unpack = unpack; },{}],17:[function(require,module,exports){ var JsonRPC = require('./JsonRPC'); var XmlRPC = require('./XmlRPC'); exports.JsonRPC = JsonRPC; exports.XmlRPC = XmlRPC; },{"./JsonRPC":15,"./XmlRPC":16}],18:[function(require,module,exports){ /* * (C) Copyright 2014-2015 Kurento (http://kurento.org/) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ var freeice = require('freeice') var inherits = require('inherits') var UAParser = require('ua-parser-js') var uuid = require('uuid') var hark = require('hark') var EventEmitter = require('events').EventEmitter var recursive = require('merge').recursive.bind(undefined, true) var sdpTranslator = require('sdp-translator') try { require('kurento-browser-extensions') } catch (error) { if (typeof getScreenConstraints === 'undefined') { console.warn('screen sharing is not available') getScreenConstraints = function getScreenConstraints(sendSource, callback) { callback(new Error("This library is not enabled for screen sharing")) } } } var MEDIA_CONSTRAINTS = { audio: true, video: { width: 640, framerate: 15 } } // Somehow, the UAParser constructor gets an empty window object. // We need to pass the user agent string in order to get information var ua = (window && window.navigator) ? window.navigator.userAgent : '' var parser = new UAParser(ua) var browser = parser.getBrowser() var usePlanB = false if (browser.name === 'Chrome' || browser.name === 'Chromium') { console.log(browser.name + ": using SDP PlanB") usePlanB = true } function noop(error) { if (error) console.error(error) } function trackStop(track) { track.stop && track.stop() } function streamStop(stream) { stream.getTracks().forEach(trackStop) } /** * Returns a string representation of a SessionDescription object. */ var dumpSDP = function (description) { if (typeof description === 'undefined' || description === null) { return '' } return 'type: ' + description.type + '\r\n' + description.sdp } function bufferizeCandidates(pc, onerror) { var candidatesQueue = [] pc.addEventListener('signalingstatechange', function () { if (this.signalingState === 'stable') { while (candidatesQueue.length) { var entry = candidatesQueue.shift() this.addIceCandidate(entry.candidate, entry.callback, entry.callback) } } }) return function (candidate, callback) { callback = callback || onerror switch (pc.signalingState) { case 'closed': callback(new Error('PeerConnection object is closed')) break case 'stable': if (pc.remoteDescription) { pc.addIceCandidate(candidate, callback, callback) break } default: candidatesQueue.push({ candidate: candidate, callback: callback }) } } } /* Simulcast utilities */ function removeFIDFromOffer(sdp) { var n = sdp.indexOf("a=ssrc-group:FID"); if (n > 0) { return sdp.slice(0, n); } else { return sdp; } } function getSimulcastInfo(videoStream) { var videoTracks = videoStream.getVideoTracks(); if (!videoTracks.length) { console.warn('No video tracks available in the video stream') return '' } var lines = [ 'a=x-google-flag:conference', 'a=ssrc-group:SIM 1 2 3', 'a=ssrc:1 cname:localVideo', 'a=ssrc:1 msid:' + videoStream.id + ' ' + videoTracks[0].id, 'a=ssrc:1 mslabel:' + videoStream.id, 'a=ssrc:1 label:' + videoTracks[0].id, 'a=ssrc:2 cname:localVideo', 'a=ssrc:2 msid:' + videoStream.id + ' ' + videoTracks[0].id, 'a=ssrc:2 mslabel:' + videoStream.id, 'a=ssrc:2 label:' + videoTracks[0].id, 'a=ssrc:3 cname:localVideo', 'a=ssrc:3 msid:' + videoStream.id + ' ' + videoTracks[0].id, 'a=ssrc:3 mslabel:' + videoStream.id, 'a=ssrc:3 label:' + videoTracks[0].id ]; lines.push(''); return lines.join('\n'); } /** * Wrapper object of an RTCPeerConnection. This object is aimed to simplify the * development of WebRTC-based applications. * * @constructor module:kurentoUtils.WebRtcPeer * * @param {String} mode Mode in which the PeerConnection will be configured. * Valid values are: 'recv', 'send', and 'sendRecv' * @param localVideo Video tag for the local stream * @param remoteVideo Video tag for the remote stream * @param {MediaStream} videoStream Stream to be used as primary source * (typically video and audio, or only video if combined with audioStream) for * localVideo and to be added as stream to the RTCPeerConnection * @param {MediaStream} audioStream Stream to be used as second source * (typically for audio) for localVideo and to be added as stream to the * RTCPeerConnection */ function WebRtcPeer(mode, options, callback) { if (!(this instanceof WebRtcPeer)) { return new WebRtcPeer(mode, options, callback) } WebRtcPeer.super_.call(this) if (options instanceof Function) { callback = options options = undefined } options = options || {} callback = (callback || noop).bind(this) var self = this var localVideo = options.localVideo var remoteVideo = options.remoteVideo var videoStream = options.videoStream var audioStream = options.audioStream var mediaConstraints = options.mediaConstraints var connectionConstraints = options.connectionConstraints var pc = options.peerConnection var sendSource = options.sendSource || 'webcam' var dataChannelConfig = options.dataChannelConfig var useDataChannels = options.dataChannels || false var dataChannel var guid = uuid.v4() var configuration = recursive({ iceServers: freeice() }, options.configuration) var onicecandidate = options.onicecandidate if (onicecandidate) this.on('icecandidate', onicecandidate) var oncandidategatheringdone = options.oncandidategatheringdone if (oncandidategatheringdone) { this.on('candidategatheringdone', oncandidategatheringdone) } var simulcast = options.simulcast var multistream = options.multistream var interop = new sdpTranslator.Interop() var candidatesQueueOut = [] var candidategatheringdone = false Object.defineProperties(this, { 'peerConnection': { get: function () { return pc } }, 'id': { value: options.id || guid, writable: false }, 'remoteVideo': { get: function () { return remoteVideo } }, 'localVideo': { get: function () { return localVideo } }, 'dataChannel': { get: function () { return dataChannel } }, /** * @member {(external:ImageData|undefined)} currentFrame */ 'currentFrame': { get: function () { // [ToDo] Find solution when we have a remote stream but we didn't set // a remoteVideo tag if (!remoteVideo) return; if (remoteVideo.readyState < remoteVideo.HAVE_CURRENT_DATA) throw new Error('No video stream data available') var canvas = document.createElement('canvas') canvas.width = remoteVideo.videoWidth canvas.height = remoteVideo.videoHeight canvas.getContext('2d').drawImage(remoteVideo, 0, 0) return canvas } } }) // Init PeerConnection if (!pc) { pc = new RTCPeerConnection(configuration); if (useDataChannels && !dataChannel) { var dcId = 'WebRtcPeer-' + self.id var dcOptions = undefined if (dataChannelConfig) { dcId = dataChannelConfig.id || dcId dcOptions = dataChannelConfig.options } dataChannel = pc.createDataChannel(dcId, dcOptions); if (dataChannelConfig) { dataChannel.onopen = dataChannelConfig.onopen; dataChannel.onclose = dataChannelConfig.onclose; dataChannel.onmessage = dataChannelConfig.onmessage; dataChannel.onbufferedamountlow = dataChannelConfig.onbufferedamountlow; dataChannel.onerror = dataChannelConfig.onerror || noop; } } } pc.addEventListener('icecandidate', function (event) { var candidate = event.candidate if (EventEmitter.listenerCount(self, 'icecandidate') || EventEmitter.listenerCount( self, 'candidategatheringdone')) { if (candidate) { var cand if (multistream && usePlanB) { cand = interop.candidateToUnifiedPlan(candidate) } else { cand = candidate } self.emit('icecandidate', cand) candidategatheringdone = false } else if (!candidategatheringdone) { self.emit('candidategatheringdone') candidategatheringdone = true } } else if (!candidategatheringdone) { // Not listening to 'icecandidate' or 'candidategatheringdone' events, queue // the candidate until one of them is listened candidatesQueueOut.push(candidate) if (!candidate) candidategatheringdone = true } }) pc.onaddstream = options.onaddstream pc.onnegotiationneeded = options.onnegotiationneeded this.on('newListener', function (event, listener) { if (event === 'icecandidate' || event === 'candidategatheringdone') { while (candidatesQueueOut.length) { var candidate = candidatesQueueOut.shift() if (!candidate === (event === 'candidategatheringdone')) { listener(candidate) } } } }) var addIceCandidate = bufferizeCandidates(pc) /** * Callback function invoked when an ICE candidate is received. Developers are * expected to invoke this function in order to complete the SDP negotiation. * * @function module:kurentoUtils.WebRtcPeer.prototype.addIceCandidate * * @param iceCandidate - Literal object with the ICE candidate description * @param callback - Called when the ICE candidate has been added. */ this.addIceCandidate = function (iceCandidate, callback) { var candidate if (multistream && usePlanB) { candidate = interop.candidateToPlanB(iceCandidate) } else { candidate = new RTCIceCandidate(iceCandidate) } console.log('ICE candidate received') callback = (callback || noop).bind(this) addIceCandidate(candidate, callback) } this.generateOffer = function (callback) { callback = callback.bind(this) var offerAudio = true var offerVideo = true // Constraints must have both blocks if (mediaConstraints) { offerAudio = (typeof mediaConstraints.audio === 'boolean') ? mediaConstraints.audio : true offerVideo = (typeof mediaConstraints.video === 'boolean') ? mediaConstraints.video : true } var browserDependantConstraints = (browser.name === 'Firefox' && browser.version > 34) ? { offerToReceiveAudio: (mode !== 'sendonly' && offerAudio), offerToReceiveVideo: (mode !== 'sendonly' && offerVideo) } : { mandatory: { OfferToReceiveAudio: (mode !== 'sendonly' && offerAudio), OfferToReceiveVideo: (mode !== 'sendonly' && offerVideo) }, optional: [{ DtlsSrtpKeyAgreement: true }] } var constraints = recursive(browserDependantConstraints, connectionConstraints) console.log('constraints: ' + JSON.stringify(constraints)) pc.createOffer(constraints).then(function (offer) { console.log('Created SDP offer') offer = mangleSdpToAddSimulcast(offer) return pc.setLocalDescription(offer) }).then(function () { var localDescription = pc.localDescription console.log('Local description set', localDescription.sdp) if (multistream && usePlanB) { localDescription = interop.toUnifiedPlan(localDescription) console.log('offer::origPlanB->UnifiedPlan', dumpSDP( localDescription)) } callback(null, localDescription.sdp, self.processAnswer.bind( self)) }).catch(callback) } this.getLocalSessionDescriptor = function () { return pc.localDescription } this.getRemoteSessionDescriptor = function () { return pc.remoteDescription } function setRemoteVideo() { if (remoteVideo) { var stream = pc.getRemoteStreams()[0] var url = stream ? URL.createObjectURL(stream) : '' remoteVideo.pause() remoteVideo.src = url remoteVideo.load() console.log('Remote URL:', url) } } this.showLocalVideo = function () { localVideo.src = URL.createObjectURL(videoStream) localVideo.muted = true } this.send = function (data) { if (dataChannel && dataChannel.readyState === 'open') { dataChannel.send(data) } else { console.warn( 'Trying to send data over a non-existing or closed data channel') } } /** * Callback function invoked when a SDP answer is received. Developers are * expected to invoke this function in order to complete the SDP negotiation. * * @function module:kurentoUtils.WebRtcPeer.prototype.processAnswer * * @param sdpAnswer - Description of sdpAnswer * @param callback - * Invoked after the SDP answer is processed, or there is an error. */ this.processAnswer = function (sdpAnswer, callback) { callback = (callback || noop).bind(this) var answer = new RTCSessionDescription({ type: 'answer', sdp: sdpAnswer }) if (multistream && usePlanB) { var planBAnswer = interop.toPlanB(answer) console.log('asnwer::planB', dumpSDP(planBAnswer)) answer = planBAnswer } console.log('SDP answer received, setting remote description') if (pc.signalingState === 'closed') { return callback('PeerConnection is closed') } pc.setRemoteDescription(answer, function () { setRemoteVideo() callback() }, callback) } /** * Callback function invoked when a SDP offer is received. Developers are * expected to invoke this function in order to complete the SDP negotiation. * * @function module:kurentoUtils.WebRtcPeer.prototype.processOffer * * @param sdpOffer - Description of sdpOffer * @param callback - Called when the remote description has been set * successfully. */ this.processOffer = function (sdpOffer, callback) { callback = callback.bind(this) var offer = new RTCSessionDescription({ type: 'offer', sdp: sdpOffer }) if (multistream && usePlanB) { var planBOffer = interop.toPlanB(offer) console.log('offer::planB', dumpSDP(planBOffer)) offer = planBOffer } console.log('SDP offer received, setting remote description') if (pc.signalingState === 'closed') { return callback('PeerConnection is closed') } pc.setRemoteDescription(offer).then(function () { return setRemoteVideo() }).then(function () { return pc.createAnswer() }).then(function (answer) { answer = mangleSdpToAddSimulcast(answer) console.log('Created SDP answer') return pc.setLocalDescription(answer) }).then(function () { var localDescription = pc.localDescription if (multistream && usePlanB) { localDescription = interop.toUnifiedPlan(localDescription) console.log('answer::origPlanB->UnifiedPlan', dumpSDP( localDescription)) } console.log('Local description set', localDescription.sdp) callback(null, localDescription.sdp) }).catch(callback) } function mangleSdpToAddSimulcast(answer) { if (simulcast) { if (browser.name === 'Chrome' || browser.name === 'Chromium') { console.log('Adding multicast info') answer = new RTCSessionDescription({ 'type': answer.type, 'sdp': removeFIDFromOffer(answer.sdp) + getSimulcastInfo( videoStream) }) } else { console.warn('Simulcast is only available in Chrome browser.') } } return answer } /** * This function creates the RTCPeerConnection object taking into account the * properties received in the constructor. It starts the SDP negotiation * process: generates the SDP offer and invokes the onsdpoffer callback. This * callback is expected to send the SDP offer, in order to obtain an SDP * answer from another peer. */ function start() { if (pc.signalingState === 'closed') { callback( 'The peer connection object is in "closed" state. This is most likely due to an invocation of the dispose method before accepting in the dialogue' ) } if (videoStream && localVideo) { self.showLocalVideo() } if (videoStream) { pc.addStream(videoStream) } if (audioStream) { pc.addStream(audioStream) } // [Hack] https://code.google.com/p/chromium/issues/detail?id=443558 var browser = parser.getBrowser() if (mode === 'sendonly' && (browser.name === 'Chrome' || browser.name === 'Chromium') && browser.major === 39) { mode = 'sendrecv' } callback() } if (mode !== 'recvonly' && !videoStream && !audioStream) { function getMedia(constraints) { if (constraints === undefined) { constraints = MEDIA_CONSTRAINTS } getUserMedia(constraints, function (stream) { videoStream = stream start() }, callback) } if (sendSource === 'webcam') { getMedia(mediaConstraints) } else { getScreenConstraints(sendSource, function (error, constraints_) { if (error) return callback(error) constraints = [mediaConstraints] constraints.unshift(constraints_) getMedia(recursive.apply(undefined, constraints)) }, guid) } } else { setTimeout(start, 0) } this.on('_dispose', function () { if (localVideo) { localVideo.pause() localVideo.src = '' localVideo.load() //Unmute local video in case the video tag is later used for remote video localVideo.muted = false } if (remoteVideo) { remoteVideo.pause() remoteVideo.src = '' remoteVideo.load() } self.removeAllListeners() if (window.cancelChooseDesktopMedia !== undefined) { window.cancelChooseDesktopMedia(guid) } }) } inherits(WebRtcPeer, EventEmitter) function createEnableDescriptor(type) { var method = 'get' + type + 'Tracks' return { enumerable: true, get: function () { // [ToDo] Should return undefined if not all tracks have the same value? if (!this.peerConnection) return var streams = this.peerConnection.getLocalStreams() if (!streams.length) return for (var i = 0, stream; stream = streams[i]; i++) { var tracks = stream[method]() for (var j = 0, track; track = tracks[j]; j++) if (!track.enabled) return false } return true }, set: function (value) { function trackSetEnable(track) { track.enabled = value } this.peerConnection.getLocalStreams().forEach(function (stream) { stream[method]().forEach(trackSetEnable) }) } } } Object.defineProperties(WebRtcPeer.prototype, { 'enabled': { enumerable: true, get: function () { return this.audioEnabled && this.videoEnabled }, set: function (value) { this.audioEnabled = this.videoEnabled = value } }, 'audioEnabled': createEnableDescriptor('Audio'), 'videoEnabled': createEnableDescriptor('Video') }) WebRtcPeer.prototype.getLocalStream = function (index) { if (this.peerConnection) { return this.peerConnection.getLocalStreams()[index || 0] } } WebRtcPeer.prototype.getRemoteStream = function (index) { if (this.peerConnection) { return this.peerConnection.getRemoteStreams()[index || 0] } } /** * @description This method frees the resources used by WebRtcPeer. * * @function module:kurentoUtils.WebRtcPeer.prototype.dispose */ WebRtcPeer.prototype.dispose = function () { console.log('Disposing WebRtcPeer') var pc = this.peerConnection var dc = this.dataChannel try { if (dc) { if (dc.signalingState === 'closed') return dc.close() } if (pc) { if (pc.signalingState === 'closed') return pc.getLocalStreams().forEach(streamStop) // FIXME This is not yet implemented in firefox // if(videoStream) pc.removeStream(videoStream); // if(audioStream) pc.removeStream(audioStream); pc.close() } } catch (err) { console.warn('Exception disposing webrtc peer ' + err) } this.emit('_dispose') } // // Specialized child classes // function WebRtcPeerRecvonly(options, callback) { if (!(this instanceof WebRtcPeerRecvonly)) { return new WebRtcPeerRecvonly(options, callback) } WebRtcPeerRecvonly.super_.call(this, 'recvonly', options, callback) } inherits(WebRtcPeerRecvonly, WebRtcPeer) function WebRtcPeerSendonly(options, callback) { if (!(this instanceof WebRtcPeerSendonly)) { return new WebRtcPeerSendonly(options, callback) } WebRtcPeerSendonly.super_.call(this, 'sendonly', options, callback) } inherits(WebRtcPeerSendonly, WebRtcPeer) function WebRtcPeerSendrecv(options, callback) { if (!(this instanceof WebRtcPeerSendrecv)) { return new WebRtcPeerSendrecv(options, callback) } WebRtcPeerSendrecv.super_.call(this, 'sendrecv', options, callback) } inherits(WebRtcPeerSendrecv, WebRtcPeer) function harkUtils(stream, options) { return hark(stream, options); } exports.bufferizeCandidates = bufferizeCandidates exports.WebRtcPeerRecvonly = WebRtcPeerRecvonly exports.WebRtcPeerSendonly = WebRtcPeerSendonly exports.WebRtcPeerSendrecv = WebRtcPeerSendrecv exports.hark = harkUtils },{"events":109,"freeice":3,"hark":6,"inherits":7,"kurento-browser-extensions":undefined,"merge":20,"sdp-translator":30,"ua-parser-js":87,"uuid":91}],19:[function(require,module,exports){ /* * (C) Copyright 2014 Kurento (http://kurento.org/) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * */ /** * This module contains a set of reusable components that have been found useful * during the development of the WebRTC applications with Kurento. * * @module kurentoUtils * * @copyright 2014 Kurento (http://kurento.org/) * @license ALv2 */ var WebRtcPeer = require('./WebRtcPeer'); exports.WebRtcPeer = WebRtcPeer; },{"./WebRtcPeer":18}],20:[function(require,module,exports){ /*! * @name JavaScript/NodeJS Merge v1.2.0 * @author yeikos * @repository https://github.com/yeikos/js.merge * Copyright 2014 yeikos - MIT license * https://raw.github.com/yeikos/js.merge/master/LICENSE */ ;(function(isNode) { /** * Merge one or more objects * @param bool? clone * @param mixed,... arguments * @return object */ var Public = function(clone) { return merge(clone === true, false, arguments); }, publicName = 'merge'; /** * Merge two or more objects recursively * @param bool? clone * @param mixed,... arguments * @return object */ Public.recursive = function(clone) { return merge(clone === true, true, arguments); }; /** * Clone the input removing any reference * @param mixed input * @return mixed */ Public.clone = function(input) { var output = input, type = typeOf(input), index, size; if (type === 'array') { output = []; size = input.length; for (index=0;index 10000) return; var match = /^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(str); if (!match) return; var n = parseFloat(match[1]); var type = (match[2] || 'ms').toLowerCase(); switch (type) { case 'years': case 'year': case 'yrs': case 'yr': case 'y': return n * y; case 'days': case 'day': case 'd': return n * d; case 'hours': case 'hour': case 'hrs': case 'hr': case 'h': return n * h; case 'minutes': case 'minute': case 'mins': case 'min': case 'm': return n * m; case 'seconds': case 'second': case 'secs': case 'sec': case 's': return n * s; case 'milliseconds': case 'millisecond': case 'msecs': case 'msec': case 'ms': return n; } } /** * Short format for `ms`. * * @param {Number} ms * @return {String} * @api private */ function short(ms) { if (ms >= d) return Math.round(ms / d) + 'd'; if (ms >= h) return Math.round(ms / h) + 'h'; if (ms >= m) return Math.round(ms / m) + 'm'; if (ms >= s) return Math.round(ms / s) + 's'; return ms + 'ms'; } /** * Long format for `ms`. * * @param {Number} ms * @return {String} * @api private */ function long(ms) { return plural(ms, d, 'day') || plural(ms, h, 'hour') || plural(ms, m, 'minute') || plural(ms, s, 'second') || ms + ' ms'; } /** * Pluralization helper. */ function plural(ms, n, name) { if (ms < n) return; if (ms < n * 1.5) return Math.floor(ms / n) + ' ' + name; return Math.ceil(ms / n) + ' ' + name + 's'; } },{}],22:[function(require,module,exports){ /** # normalice Normalize an ice server configuration object (or plain old string) into a format that is usable in all browsers supporting WebRTC. Primarily this module is designed to help with the transition of the `url` attribute of the configuration object to the `urls` attribute. ## Example Usage <<< examples/simple.js **/ var protocols = [ 'stun:', 'turn:' ]; module.exports = function(input) { var url = (input || {}).url || input; var protocol; var parts; var output = {}; // if we don't have a string url, then allow the input to passthrough if (typeof url != 'string' && (! (url instanceof String))) { return input; } // trim the url string, and convert to an array url = url.trim(); // if the protocol is not known, then passthrough protocol = protocols[protocols.indexOf(url.slice(0, 5))]; if (! protocol) { return input; } // now let's attack the remaining url parts url = url.slice(5); parts = url.split('@'); output.username = input.username; output.credential = input.credential; // if we have an authentication part, then set the credentials if (parts.length > 1) { url = parts[1]; parts = parts[0].split(':'); // add the output credential and username output.username = parts[0]; output.credential = (input || {}).credential || parts[1] || ''; } output.url = protocol + url; output.urls = [ output.url ]; return output; }; },{}],23:[function(require,module,exports){ 'use strict'; var has = Object.prototype.hasOwnProperty; /** * Simple query string parser. * * @param {String} query The query string that needs to be parsed. * @returns {Object} * @api public */ function querystring(query) { var parser = /([^=?&]+)=?([^&]*)/g , result = {} , part; // // Little nifty parsing hack, leverage the fact that RegExp.exec increments // the lastIndex property so we can continue executing this loop until we've // parsed all results. // for (; part = parser.exec(query); result[decodeURIComponent(part[1])] = decodeURIComponent(part[2]) ); return result; } /** * Transform a query string to an object. * * @param {Object} obj Object that should be transformed. * @param {String} prefix Optional prefix. * @returns {String} * @api public */ function querystringify(obj, prefix) { prefix = prefix || ''; var pairs = []; // // Optionally prefix with a '?' if needed // if ('string' !== typeof prefix) prefix = '?'; for (var key in obj) { if (has.call(obj, key)) { pairs.push(encodeURIComponent(key) +'='+ encodeURIComponent(obj[key])); } } return pairs.length ? prefix + pairs.join('&') : ''; } // // Expose the module. // exports.stringify = querystringify; exports.parse = querystring; },{}],24:[function(require,module,exports){ 'use strict'; /** * Check if we're required to add a port number. * * @see https://url.spec.whatwg.org/#default-port * @param {Number|String} port Port number we need to check * @param {String} protocol Protocol we need to check against. * @returns {Boolean} Is it a default port for the given protocol * @api private */ module.exports = function required(port, protocol) { protocol = protocol.split(':')[0]; port = +port; if (!port) return false; switch (protocol) { case 'http': case 'ws': return port !== 80; case 'https': case 'wss': return port !== 443; case 'ftp': return port !== 21; case 'gopher': return port !== 70; case 'file': return false; } return port !== 0; }; },{}],25:[function(require,module,exports){ var grammar = module.exports = { v: [{ name: 'version', reg: /^(\d*)$/ }], o: [{ //o=- 20518 0 IN IP4 203.0.113.1 // NB: sessionId will be a String in most cases because it is huge name: 'origin', reg: /^(\S*) (\d*) (\d*) (\S*) IP(\d) (\S*)/, names: ['username', 'sessionId', 'sessionVersion', 'netType', 'ipVer', 'address'], format: "%s %s %d %s IP%d %s" }], // default parsing of these only (though some of these feel outdated) s: [{ name: 'name' }], i: [{ name: 'description' }], u: [{ name: 'uri' }], e: [{ name: 'email' }], p: [{ name: 'phone' }], z: [{ name: 'timezones' }], // TODO: this one can actually be parsed properly.. r: [{ name: 'repeats' }], // TODO: this one can also be parsed properly //k: [{}], // outdated thing ignored t: [{ //t=0 0 name: 'timing', reg: /^(\d*) (\d*)/, names: ['start', 'stop'], format: "%d %d" }], c: [{ //c=IN IP4 10.47.197.26 name: 'connection', reg: /^IN IP(\d) (\S*)/, names: ['version', 'ip'], format: "IN IP%d %s" }], b: [{ //b=AS:4000 push: 'bandwidth', reg: /^(TIAS|AS|CT|RR|RS):(\d*)/, names: ['type', 'limit'], format: "%s:%s" }], m: [{ //m=video 51744 RTP/AVP 126 97 98 34 31 // NB: special - pushes to session // TODO: rtp/fmtp should be filtered by the payloads found here? reg: /^(\w*) (\d*) ([\w\/]*)(?: (.*))?/, names: ['type', 'port', 'protocol', 'payloads'], format: "%s %d %s %s" }], a: [ { //a=rtpmap:110 opus/48000/2 push: 'rtp', reg: /^rtpmap:(\d*) ([\w\-]*)(?:\s*\/(\d*)(?:\s*\/(\S*))?)?/, names: ['payload', 'codec', 'rate', 'encoding'], format: function (o) { return (o.encoding) ? "rtpmap:%d %s/%s/%s": o.rate ? "rtpmap:%d %s/%s": "rtpmap:%d %s"; } }, { //a=fmtp:108 profile-level-id=24;object=23;bitrate=64000 //a=fmtp:111 minptime=10; useinbandfec=1 push: 'fmtp', reg: /^fmtp:(\d*) ([\S| ]*)/, names: ['payload', 'config'], format: "fmtp:%d %s" }, { //a=control:streamid=0 name: 'control', reg: /^control:(.*)/, format: "control:%s" }, { //a=rtcp:65179 IN IP4 193.84.77.194 name: 'rtcp', reg: /^rtcp:(\d*)(?: (\S*) IP(\d) (\S*))?/, names: ['port', 'netType', 'ipVer', 'address'], format: function (o) { return (o.address != null) ? "rtcp:%d %s IP%d %s": "rtcp:%d"; } }, { //a=rtcp-fb:98 trr-int 100 push: 'rtcpFbTrrInt', reg: /^rtcp-fb:(\*|\d*) trr-int (\d*)/, names: ['payload', 'value'], format: "rtcp-fb:%d trr-int %d" }, { //a=rtcp-fb:98 nack rpsi push: 'rtcpFb', reg: /^rtcp-fb:(\*|\d*) ([\w-_]*)(?: ([\w-_]*))?/, names: ['payload', 'type', 'subtype'], format: function (o) { return (o.subtype != null) ? "rtcp-fb:%s %s %s": "rtcp-fb:%s %s"; } }, { //a=extmap:2 urn:ietf:params:rtp-hdrext:toffset //a=extmap:1/recvonly URI-gps-string push: 'ext', reg: /^extmap:([\w_\/]*) (\S*)(?: (\S*))?/, names: ['value', 'uri', 'config'], // value may include "/direction" suffix format: function (o) { return (o.config != null) ? "extmap:%s %s %s": "extmap:%s %s"; } }, { //a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:PS1uQCVeeCFCanVmcjkpPywjNWhcYD0mXXtxaVBR|2^20|1:32 push: 'crypto', reg: /^crypto:(\d*) ([\w_]*) (\S*)(?: (\S*))?/, names: ['id', 'suite', 'config', 'sessionConfig'], format: function (o) { return (o.sessionConfig != null) ? "crypto:%d %s %s %s": "crypto:%d %s %s"; } }, { //a=setup:actpass name: 'setup', reg: /^setup:(\w*)/, format: "setup:%s" }, { //a=mid:1 name: 'mid', reg: /^mid:([^\s]*)/, format: "mid:%s" }, { //a=msid:0c8b064d-d807-43b4-b434-f92a889d8587 98178685-d409-46e0-8e16-7ef0db0db64a name: 'msid', reg: /^msid:(.*)/, format: "msid:%s" }, { //a=ptime:20 name: 'ptime', reg: /^ptime:(\d*)/, format: "ptime:%d" }, { //a=maxptime:60 name: 'maxptime', reg: /^maxptime:(\d*)/, format: "maxptime:%d" }, { //a=sendrecv name: 'direction', reg: /^(sendrecv|recvonly|sendonly|inactive)/ }, { //a=ice-lite name: 'icelite', reg: /^(ice-lite)/ }, { //a=ice-ufrag:F7gI name: 'iceUfrag', reg: /^ice-ufrag:(\S*)/, format: "ice-ufrag:%s" }, { //a=ice-pwd:x9cml/YzichV2+XlhiMu8g name: 'icePwd', reg: /^ice-pwd:(\S*)/, format: "ice-pwd:%s" }, { //a=fingerprint:SHA-1 00:11:22:33:44:55:66:77:88:99:AA:BB:CC:DD:EE:FF:00:11:22:33 name: 'fingerprint', reg: /^fingerprint:(\S*) (\S*)/, names: ['type', 'hash'], format: "fingerprint:%s %s" }, { //a=candidate:0 1 UDP 2113667327 203.0.113.1 54400 typ host //a=candidate:1162875081 1 udp 2113937151 192.168.34.75 60017 typ host generation 0 //a=candidate:3289912957 2 udp 1845501695 193.84.77.194 60017 typ srflx raddr 192.168.34.75 rport 60017 generation 0 //a=candidate:229815620 1 tcp 1518280447 192.168.150.19 60017 typ host tcptype active generation 0 //a=candidate:3289912957 2 tcp 1845501695 193.84.77.194 60017 typ srflx raddr 192.168.34.75 rport 60017 tcptype passive generation 0 push:'candidates', reg: /^candidate:(\S*) (\d*) (\S*) (\d*) (\S*) (\d*) typ (\S*)(?: raddr (\S*) rport (\d*))?(?: tcptype (\S*))?(?: generation (\d*))?/, names: ['foundation', 'component', 'transport', 'priority', 'ip', 'port', 'type', 'raddr', 'rport', 'tcptype', 'generation'], format: function (o) { var str = "candidate:%s %d %s %d %s %d typ %s"; str += (o.raddr != null) ? " raddr %s rport %d" : "%v%v"; // NB: candidate has three optional chunks, so %void middles one if it's missing str += (o.tcptype != null) ? " tcptype %s" : "%v"; if (o.generation != null) { str += " generation %d"; } return str; } }, { //a=end-of-candidates (keep after the candidates line for readability) name: 'endOfCandidates', reg: /^(end-of-candidates)/ }, { //a=remote-candidates:1 203.0.113.1 54400 2 203.0.113.1 54401 ... name: 'remoteCandidates', reg: /^remote-candidates:(.*)/, format: "remote-candidates:%s" }, { //a=ice-options:google-ice name: 'iceOptions', reg: /^ice-options:(\S*)/, format: "ice-options:%s" }, { //a=ssrc:2566107569 cname:t9YU8M1UxTF8Y1A1 push: "ssrcs", reg: /^ssrc:(\d*) ([\w_]*):(.*)/, names: ['id', 'attribute', 'value'], format: "ssrc:%d %s:%s" }, { //a=ssrc-group:FEC 1 2 push: "ssrcGroups", reg: /^ssrc-group:(\w*) (.*)/, names: ['semantics', 'ssrcs'], format: "ssrc-group:%s %s" }, { //a=msid-semantic: WMS Jvlam5X3SX1OP6pn20zWogvaKJz5Hjf9OnlV name: "msidSemantic", reg: /^msid-semantic:\s?(\w*) (\S*)/, names: ['semantic', 'token'], format: "msid-semantic: %s %s" // space after ":" is not accidental }, { //a=group:BUNDLE audio video push: 'groups', reg: /^group:(\w*) (.*)/, names: ['type', 'mids'], format: "group:%s %s" }, { //a=rtcp-mux name: 'rtcpMux', reg: /^(rtcp-mux)/ }, { //a=rtcp-rsize name: 'rtcpRsize', reg: /^(rtcp-rsize)/ }, { // any a= that we don't understand is kepts verbatim on media.invalid push: 'invalid', names: ["value"] } ] }; // set sensible defaults to avoid polluting the grammar with boring details Object.keys(grammar).forEach(function (key) { var objs = grammar[key]; objs.forEach(function (obj) { if (!obj.reg) { obj.reg = /(.*)/; } if (!obj.format) { obj.format = "%s"; } }); }); },{}],26:[function(require,module,exports){ var parser = require('./parser'); var writer = require('./writer'); exports.write = writer; exports.parse = parser.parse; exports.parseFmtpConfig = parser.parseFmtpConfig; exports.parsePayloads = parser.parsePayloads; exports.parseRemoteCandidates = parser.parseRemoteCandidates; },{"./parser":27,"./writer":28}],27:[function(require,module,exports){ var toIntIfInt = function (v) { return String(Number(v)) === v ? Number(v) : v; }; var attachProperties = function (match, location, names, rawName) { if (rawName && !names) { location[rawName] = toIntIfInt(match[1]); } else { for (var i = 0; i < names.length; i += 1) { if (match[i+1] != null) { location[names[i]] = toIntIfInt(match[i+1]); } } } }; var parseReg = function (obj, location, content) { var needsBlank = obj.name && obj.names; if (obj.push && !location[obj.push]) { location[obj.push] = []; } else if (needsBlank && !location[obj.name]) { location[obj.name] = {}; } var keyLocation = obj.push ? {} : // blank object that will be pushed needsBlank ? location[obj.name] : location; // otherwise, named location or root attachProperties(content.match(obj.reg), keyLocation, obj.names, obj.name); if (obj.push) { location[obj.push].push(keyLocation); } }; var grammar = require('./grammar'); var validLine = RegExp.prototype.test.bind(/^([a-z])=(.*)/); exports.parse = function (sdp) { var session = {} , media = [] , location = session; // points at where properties go under (one of the above) // parse lines we understand sdp.split(/(\r\n|\r|\n)/).filter(validLine).forEach(function (l) { var type = l[0]; var content = l.slice(2); if (type === 'm') { media.push({rtp: [], fmtp: []}); location = media[media.length-1]; // point at latest media line } for (var j = 0; j < (grammar[type] || []).length; j += 1) { var obj = grammar[type][j]; if (obj.reg.test(content)) { return parseReg(obj, location, content); } } }); session.media = media; // link it up return session; }; var fmtpReducer = function (acc, expr) { var s = expr.split('='); if (s.length === 2) { acc[s[0]] = toIntIfInt(s[1]); } return acc; }; exports.parseFmtpConfig = function (str) { return str.split(/\;\s?/).reduce(fmtpReducer, {}); }; exports.parsePayloads = function (str) { return str.split(' ').map(Number); }; exports.parseRemoteCandidates = function (str) { var candidates = []; var parts = str.split(' ').map(toIntIfInt); for (var i = 0; i < parts.length; i += 3) { candidates.push({ component: parts[i], ip: parts[i + 1], port: parts[i + 2] }); } return candidates; }; },{"./grammar":25}],28:[function(require,module,exports){ var grammar = require('./grammar'); // customized util.format - discards excess arguments and can void middle ones var formatRegExp = /%[sdv%]/g; var format = function (formatStr) { var i = 1; var args = arguments; var len = args.length; return formatStr.replace(formatRegExp, function (x) { if (i >= len) { return x; // missing argument } var arg = args[i]; i += 1; switch (x) { case '%%': return '%'; case '%s': return String(arg); case '%d': return Number(arg); case '%v': return ''; } }); // NB: we discard excess arguments - they are typically undefined from makeLine }; var makeLine = function (type, obj, location) { var str = obj.format instanceof Function ? (obj.format(obj.push ? location : location[obj.name])) : obj.format; var args = [type + '=' + str]; if (obj.names) { for (var i = 0; i < obj.names.length; i += 1) { var n = obj.names[i]; if (obj.name) { args.push(location[obj.name][n]); } else { // for mLine and push attributes args.push(location[obj.names[i]]); } } } else { args.push(location[obj.name]); } return format.apply(null, args); }; // RFC specified order // TODO: extend this with all the rest var defaultOuterOrder = [ 'v', 'o', 's', 'i', 'u', 'e', 'p', 'c', 'b', 't', 'r', 'z', 'a' ]; var defaultInnerOrder = ['i', 'c', 'b', 'a']; module.exports = function (session, opts) { opts = opts || {}; // ensure certain properties exist if (session.version == null) { session.version = 0; // "v=0" must be there (only defined version atm) } if (session.name == null) { session.name = " "; // "s= " must be there if no meaningful name set } session.media.forEach(function (mLine) { if (mLine.payloads == null) { mLine.payloads = ""; } }); var outerOrder = opts.outerOrder || defaultOuterOrder; var innerOrder = opts.innerOrder || defaultInnerOrder; var sdp = []; // loop through outerOrder for matching properties on session outerOrder.forEach(function (type) { grammar[type].forEach(function (obj) { if (obj.name in session && session[obj.name] != null) { sdp.push(makeLine(type, obj, session)); } else if (obj.push in session && session[obj.push] != null) { session[obj.push].forEach(function (el) { sdp.push(makeLine(type, obj, el)); }); } }); }); // then for each media line, follow the innerOrder session.media.forEach(function (mLine) { sdp.push(makeLine('m', grammar.m[0], mLine)); innerOrder.forEach(function (type) { grammar[type].forEach(function (obj) { if (obj.name in mLine && mLine[obj.name] != null) { sdp.push(makeLine(type, obj, mLine)); } else if (obj.push in mLine && mLine[obj.push] != null) { mLine[obj.push].forEach(function (el) { sdp.push(makeLine(type, obj, el)); }); } }); }); }); return sdp.join('\r\n') + '\r\n'; }; },{"./grammar":25}],29:[function(require,module,exports){ /* Copyright @ 2015 Atlassian Pty Ltd * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ module.exports = function arrayEquals(array) { // if the other array is a falsy value, return if (!array) return false; // compare lengths - can save a lot of time if (this.length != array.length) return false; for (var i = 0, l = this.length; i < l; i++) { // Check if we have nested arrays if (this[i] instanceof Array && array[i] instanceof Array) { // recurse into the nested arrays if (!arrayEquals.apply(this[i], [array[i]])) return false; } else if (this[i] != array[i]) { // Warning - two different object instances will never be equal: // {x:20} != {x:20} return false; } } return true; }; },{}],30:[function(require,module,exports){ /* Copyright @ 2015 Atlassian Pty Ltd * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ exports.Interop = require('./interop'); },{"./interop":31}],31:[function(require,module,exports){ /* Copyright @ 2015 Atlassian Pty Ltd * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /* global RTCSessionDescription */ /* global RTCIceCandidate */ /* jshint -W097 */ "use strict"; var transform = require('./transform'); var arrayEquals = require('./array-equals'); function Interop() { /** * This map holds the most recent Unified Plan offer/answer SDP that was * converted to Plan B, with the SDP type ('offer' or 'answer') as keys and * the SDP string as values. * * @type {{}} */ this.cache = { mlB2UMap : {}, mlU2BMap : {} }; } module.exports = Interop; /** * Changes the candidate args to match with the related Unified Plan */ Interop.prototype.candidateToUnifiedPlan = function(candidate) { var cand = new RTCIceCandidate(candidate); cand.sdpMLineIndex = this.cache.mlB2UMap[cand.sdpMLineIndex]; /* TODO: change sdpMid to (audio|video)-SSRC */ return cand; }; /** * Changes the candidate args to match with the related Plan B */ Interop.prototype.candidateToPlanB = function(candidate) { var cand = new RTCIceCandidate(candidate); if (cand.sdpMid.indexOf('audio') === 0) { cand.sdpMid = 'audio'; } else if (cand.sdpMid.indexOf('video') === 0) { cand.sdpMid = 'video'; } else { throw new Error('candidate with ' + cand.sdpMid + ' not allowed'); } cand.sdpMLineIndex = this.cache.mlU2BMap[cand.sdpMLineIndex]; return cand; }; /** * Returns the index of the first m-line with the given media type and with a * direction which allows sending, in the last Unified Plan description with * type "answer" converted to Plan B. Returns {null} if there is no saved * answer, or if none of its m-lines with the given type allow sending. * @param type the media type ("audio" or "video"). * @returns {*} */ Interop.prototype.getFirstSendingIndexFromAnswer = function(type) { if (!this.cache.answer) { return null; } var session = transform.parse(this.cache.answer); if (session && session.media && Array.isArray(session.media)){ for (var i = 0; i < session.media.length; i++) { if (session.media[i].type == type && (!session.media[i].direction /* default to sendrecv */ || session.media[i].direction === 'sendrecv' || session.media[i].direction === 'sendonly')){ return i; } } } return null; }; /** * This method transforms a Unified Plan SDP to an equivalent Plan B SDP. A * PeerConnection wrapper transforms the SDP to Plan B before passing it to the * application. * * @param desc * @returns {*} */ Interop.prototype.toPlanB = function(desc) { var self = this; //#region Preliminary input validation. if (typeof desc !== 'object' || desc === null || typeof desc.sdp !== 'string') { console.warn('An empty description was passed as an argument.'); return desc; } // Objectify the SDP for easier manipulation. var session = transform.parse(desc.sdp); // If the SDP contains no media, there's nothing to transform. if (typeof session.media === 'undefined' || !Array.isArray(session.media) || session.media.length === 0) { console.warn('The description has no media.'); return desc; } // Try some heuristics to "make sure" this is a Unified Plan SDP. Plan B // SDP has a video, an audio and a data "channel" at most. if (session.media.length <= 3 && session.media.every(function(m) { return ['video', 'audio', 'data'].indexOf(m.mid) !== -1; })) { console.warn('This description does not look like Unified Plan.'); return desc; } //#endregion // HACK https://bugzilla.mozilla.org/show_bug.cgi?id=1113443 var sdp = desc.sdp; var rewrite = false; for (var i = 0; i < session.media.length; i++) { var uLine = session.media[i]; uLine.rtp.forEach(function(rtp) { if (rtp.codec === 'NULL') { rewrite = true; var offer = transform.parse(self.cache.offer); rtp.codec = offer.media[i].rtp[0].codec; } }); } if (rewrite) { sdp = transform.write(session); } // Unified Plan SDP is our "precious". Cache it for later use in the Plan B // -> Unified Plan transformation. this.cache[desc.type] = sdp; //#region Convert from Unified Plan to Plan B. // We rebuild the session.media array. var media = session.media; session.media = []; // Associative array that maps channel types to channel objects for fast // access to channel objects by their type, e.g. type2bl['audio']->channel // obj. var type2bl = {}; // Used to build the group:BUNDLE value after the channels construction // loop. var types = []; media.forEach(function(uLine) { // rtcp-mux is required in the Plan B SDP. if ((typeof uLine.rtcpMux !== 'string' || uLine.rtcpMux !== 'rtcp-mux') && uLine.direction !== 'inactive') { throw new Error('Cannot convert to Plan B because m-lines ' + 'without the rtcp-mux attribute were found.'); } // If we don't have a channel for this uLine.type OR the selected is // inactive, then select this uLine as the channel basis. if (typeof type2bl[uLine.type] === 'undefined' || type2bl[uLine.type].direction === 'inactive') { type2bl[uLine.type] = uLine; } if (uLine.protocol != type2bl[uLine.type].protocol) { throw new Error('Cannot convert to Plan B because m-lines ' + 'have different protocols and this library does not have ' + 'support for that'); } if (uLine.payloads != type2bl[uLine.type].payloads) { throw new Error('Cannot convert to Plan B because m-lines ' + 'have different payloads and this library does not have ' + 'support for that'); } }); // Implode the Unified Plan m-lines/tracks into Plan B channels. media.forEach(function(uLine) { if (uLine.type === 'application') { session.media.push(uLine); types.push(uLine.mid); return; } // Add sources to the channel and handle a=msid. if (typeof uLine.sources === 'object') { Object.keys(uLine.sources).forEach(function(ssrc) { if (typeof type2bl[uLine.type].sources !== 'object') type2bl[uLine.type].sources = {}; // Assign the sources to the channel. type2bl[uLine.type].sources[ssrc] = uLine.sources[ssrc]; if (typeof uLine.msid !== 'undefined') { // In Plan B the msid is an SSRC attribute. Also, we don't // care about the obsolete label and mslabel attributes. // // Note that it is not guaranteed that the uLine will // have an msid. recvonly channels in particular don't have // one. type2bl[uLine.type].sources[ssrc].msid = uLine.msid; } // NOTE ssrcs in ssrc groups will share msids, as // draft-uberti-rtcweb-plan-00 mandates. }); } // Add ssrc groups to the channel. if (typeof uLine.ssrcGroups !== 'undefined' && Array.isArray(uLine.ssrcGroups)) { // Create the ssrcGroups array, if it's not defined. if (typeof type2bl[uLine.type].ssrcGroups === 'undefined' || !Array.isArray(type2bl[uLine.type].ssrcGroups)) { type2bl[uLine.type].ssrcGroups = []; } type2bl[uLine.type].ssrcGroups = type2bl[uLine.type].ssrcGroups.concat( uLine.ssrcGroups); } if (type2bl[uLine.type] === uLine) { // Plan B mids are in ['audio', 'video', 'data'] uLine.mid = uLine.type; // Plan B doesn't support/need the bundle-only attribute. delete uLine.bundleOnly; // In Plan B the msid is an SSRC attribute. delete uLine.msid; if (uLine.type == media[0].type) { types.unshift(uLine.type); // Add the channel to the new media array. session.media.unshift(uLine); } else { types.push(uLine.type); // Add the channel to the new media array. session.media.push(uLine); } } }); if (typeof session.groups !== 'undefined') { // We regenerate the BUNDLE group with the new mids. session.groups.some(function(group) { if (group.type === 'BUNDLE') { group.mids = types.join(' '); return true; } }); } // msid semantic session.msidSemantic = { semantic: 'WMS', token: '*' }; var resStr = transform.write(session); return new RTCSessionDescription({ type: desc.type, sdp: resStr }); //#endregion }; /* follow rules defined in RFC4145 */ function addSetupAttr(uLine) { if (typeof uLine.setup === 'undefined') { return; } if (uLine.setup === "active") { uLine.setup = "passive"; } else if (uLine.setup === "passive") { uLine.setup = "active"; } } /** * This method transforms a Plan B SDP to an equivalent Unified Plan SDP. A * PeerConnection wrapper transforms the SDP to Unified Plan before passing it * to FF. * * @param desc * @returns {*} */ Interop.prototype.toUnifiedPlan = function(desc) { var self = this; //#region Preliminary input validation. if (typeof desc !== 'object' || desc === null || typeof desc.sdp !== 'string') { console.warn('An empty description was passed as an argument.'); return desc; } var session = transform.parse(desc.sdp); // If the SDP contains no media, there's nothing to transform. if (typeof session.media === 'undefined' || !Array.isArray(session.media) || session.media.length === 0) { console.warn('The description has no media.'); return desc; } // Try some heuristics to "make sure" this is a Plan B SDP. Plan B SDP has // a video, an audio and a data "channel" at most. if (session.media.length > 3 || !session.media.every(function(m) { return ['video', 'audio', 'data'].indexOf(m.mid) !== -1; })) { console.warn('This description does not look like Plan B.'); return desc; } // Make sure this Plan B SDP can be converted to a Unified Plan SDP. var mids = []; session.media.forEach(function(m) { mids.push(m.mid); }); var hasBundle = false; if (typeof session.groups !== 'undefined' && Array.isArray(session.groups)) { hasBundle = session.groups.every(function(g) { return g.type !== 'BUNDLE' || arrayEquals.apply(g.mids.sort(), [mids.sort()]); }); } if (!hasBundle) { var mustBeBundle = false; session.media.forEach(function(m) { if (m.direction !== 'inactive') { mustBeBundle = true; } }); if (mustBeBundle) { throw new Error("Cannot convert to Unified Plan because m-lines that" + " are not bundled were found."); } } //#endregion //#region Convert from Plan B to Unified Plan. // Unfortunately, a Plan B offer/answer doesn't have enough information to // rebuild an equivalent Unified Plan offer/answer. // // For example, if this is a local answer (in Unified Plan style) that we // convert to Plan B prior to handing it over to the application (the // PeerConnection wrapper called us, for instance, after a successful // createAnswer), we want to remember the m-line at which we've seen the // (local) SSRC. That's because when the application wants to do call the // SLD method, forcing us to do the inverse transformation (from Plan B to // Unified Plan), we need to know to which m-line to assign the (local) // SSRC. We also need to know all the other m-lines that the original // answer had and include them in the transformed answer as well. // // Another example is if this is a remote offer that we convert to Plan B // prior to giving it to the application, we want to remember the mid at // which we've seen the (remote) SSRC. // // In the iteration that follows, we use the cached Unified Plan (if it // exists) to assign mids to ssrcs. var type; if (desc.type === 'answer') { type = 'offer'; } else if (desc.type === 'offer') { type = 'answer'; } else { throw new Error("Type '" + desc.type + "' not supported."); } var cached; if (typeof this.cache[type] !== 'undefined') { cached = transform.parse(this.cache[type]); } var recvonlySsrcs = { audio: {}, video: {} }; // A helper map that sends mids to m-line objects. We use it later to // rebuild the Unified Plan style session.media array. var mid2ul = {}; var bIdx = 0; var uIdx = 0; var sources2ul = {}; var candidates; var iceUfrag; var icePwd; var fingerprint; var payloads = {}; var rtcpFb = {}; var rtp = {}; session.media.forEach(function(bLine) { if ((typeof bLine.rtcpMux !== 'string' || bLine.rtcpMux !== 'rtcp-mux') && bLine.direction !== 'inactive') { throw new Error("Cannot convert to Unified Plan because m-lines " + "without the rtcp-mux attribute were found."); } if (bLine.type === 'application') { mid2ul[bLine.mid] = bLine; return; } // With rtcp-mux and bundle all the channels should have the same ICE // stuff. var sources = bLine.sources; var ssrcGroups = bLine.ssrcGroups; var port = bLine.port; /* Chrome adds different candidates even using bundle, so we concat the candidates list */ if (typeof bLine.candidates != 'undefined') { if (typeof candidates != 'undefined') { candidates = candidates.concat(bLine.candidates); } else { candidates = bLine.candidates; } } if ((typeof iceUfrag != 'undefined') && (typeof bLine.iceUfrag != 'undefined') && (iceUfrag != bLine.iceUfrag)) { throw new Error("Only BUNDLE supported, iceUfrag must be the same for all m-lines.\n" + "\tLast iceUfrag: " + iceUfrag + "\n" + "\tNew iceUfrag: " + bLine.iceUfrag ); } if (typeof bLine.iceUfrag != 'undefined') { iceUfrag = bLine.iceUfrag; } if ((typeof icePwd != 'undefined') && (typeof bLine.icePwd != 'undefined') && (icePwd != bLine.icePwd)) { throw new Error("Only BUNDLE supported, icePwd must be the same for all m-lines.\n" + "\tLast icePwd: " + icePwd + "\n" + "\tNew icePwd: " + bLine.icePwd ); } if (typeof bLine.icePwd != 'undefined') { icePwd = bLine.icePwd; } if ((typeof fingerprint != 'undefined') && (typeof bLine.fingerprint != 'undefined') && (fingerprint.type != bLine.fingerprint.type || fingerprint.hash != bLine.fingerprint.hash)) { throw new Error("Only BUNDLE supported, fingerprint must be the same for all m-lines.\n" + "\tLast fingerprint: " + JSON.stringify(fingerprint) + "\n" + "\tNew fingerprint: " + JSON.stringify(bLine.fingerprint) ); } if (typeof bLine.fingerprint != 'undefined') { fingerprint = bLine.fingerprint; } payloads[bLine.type] = bLine.payloads; rtcpFb[bLine.type] = bLine.rtcpFb; rtp[bLine.type] = bLine.rtp; // inverted ssrc group map var ssrc2group = {}; if (typeof ssrcGroups !== 'undefined' && Array.isArray(ssrcGroups)) { ssrcGroups.forEach(function (ssrcGroup) { // XXX This might brake if an SSRC is in more than one group // for some reason. if (typeof ssrcGroup.ssrcs !== 'undefined' && Array.isArray(ssrcGroup.ssrcs)) { ssrcGroup.ssrcs.forEach(function (ssrc) { if (typeof ssrc2group[ssrc] === 'undefined') { ssrc2group[ssrc] = []; } ssrc2group[ssrc].push(ssrcGroup); }); } }); } // ssrc to m-line index. var ssrc2ml = {}; if (typeof sources === 'object') { // We'll use the "bLine" object as a prototype for each new "mLine" // that we create, but first we need to clean it up a bit. delete bLine.sources; delete bLine.ssrcGroups; delete bLine.candidates; delete bLine.iceUfrag; delete bLine.icePwd; delete bLine.fingerprint; delete bLine.port; delete bLine.mid; // Explode the Plan B channel sources with one m-line per source. Object.keys(sources).forEach(function(ssrc) { // The (unified) m-line for this SSRC. We either create it from // scratch or, if it's a grouped SSRC, we re-use a related // mline. In other words, if the source is grouped with another // source, put the two together in the same m-line. var uLine; // We assume here that we are the answerer in the O/A, so any // offers which we translate come from the remote side, while // answers are local. So the check below is to make that we // handle receive-only SSRCs in a special way only if they come // from the remote side. if (desc.type==='offer') { // We want to detect SSRCs which are used by a remote peer // in an m-line with direction=recvonly (i.e. they are // being used for RTCP only). // This information would have gotten lost if the remote // peer used Unified Plan and their local description was // translated to Plan B. So we use the lack of an MSID // attribute to deduce a "receive only" SSRC. if (!sources[ssrc].msid) { recvonlySsrcs[bLine.type][ssrc] = sources[ssrc]; // Receive-only SSRCs must not create new m-lines. We // will assign them to an existing m-line later. return; } } if (typeof ssrc2group[ssrc] !== 'undefined' && Array.isArray(ssrc2group[ssrc])) { ssrc2group[ssrc].some(function (ssrcGroup) { // ssrcGroup.ssrcs *is* an Array, no need to check // again here. return ssrcGroup.ssrcs.some(function (related) { if (typeof ssrc2ml[related] === 'object') { uLine = ssrc2ml[related]; return true; } }); }); } if (typeof uLine === 'object') { // the m-line already exists. Just add the source. uLine.sources[ssrc] = sources[ssrc]; delete sources[ssrc].msid; } else { // Use the "bLine" as a prototype for the "uLine". uLine = Object.create(bLine); ssrc2ml[ssrc] = uLine; if (typeof sources[ssrc].msid !== 'undefined') { // Assign the msid of the source to the m-line. Note // that it is not guaranteed that the source will have // msid. In particular "recvonly" sources don't have an // msid. Note that "recvonly" is a term only defined // for m-lines. uLine.msid = sources[ssrc].msid; delete sources[ssrc].msid; } // We assign one SSRC per media line. uLine.sources = {}; uLine.sources[ssrc] = sources[ssrc]; uLine.ssrcGroups = ssrc2group[ssrc]; // Use the cached Unified Plan SDP (if it exists) to assign // SSRCs to mids. if (typeof cached !== 'undefined' && typeof cached.media !== 'undefined' && Array.isArray(cached.media)) { cached.media.forEach(function (m) { if (typeof m.sources === 'object') { Object.keys(m.sources).forEach(function (s) { if (s === ssrc) { uLine.mid = m.mid; } }); } }); } if (typeof uLine.mid === 'undefined') { // If this is an SSRC that we see for the first time // assign it a new mid. This is typically the case when // this method is called to transform a remote // description for the first time or when there is a // new SSRC in the remote description because a new // peer has joined the conference. Local SSRCs should // have already been added to the map in the toPlanB // method. // // Because FF generates answers in Unified Plan style, // we MUST already have a cached answer with all the // local SSRCs mapped to some m-line/mid. uLine.mid = [bLine.type, '-', ssrc].join(''); } // Include the candidates in the 1st media line. uLine.candidates = candidates; uLine.iceUfrag = iceUfrag; uLine.icePwd = icePwd; uLine.fingerprint = fingerprint; uLine.port = port; mid2ul[uLine.mid] = uLine; sources2ul[uIdx] = uLine.sources; self.cache.mlU2BMap[uIdx] = bIdx; if (typeof self.cache.mlB2UMap[bIdx] === 'undefined') { self.cache.mlB2UMap[bIdx] = uIdx; } uIdx++; } }); } else { var uLine = bLine; uLine.candidates = candidates; uLine.iceUfrag = iceUfrag; uLine.icePwd = icePwd; uLine.fingerprint = fingerprint; uLine.port = port; mid2ul[uLine.mid] = uLine; self.cache.mlU2BMap[uIdx] = bIdx; if (typeof self.cache.mlB2UMap[bIdx] === 'undefined') { self.cache.mlB2UMap[bIdx] = uIdx; } } bIdx++; }); // Rebuild the media array in the right order and add the missing mLines // (missing from the Plan B SDP). session.media = []; mids = []; // reuse if (desc.type === 'answer') { // The media lines in the answer must match the media lines in the // offer. The order is important too. Here we assume that Firefox is // the answerer, so we merely have to use the reconstructed (unified) // answer to update the cached (unified) answer accordingly. // // In the general case, one would have to use the cached (unified) // offer to find the m-lines that are missing from the reconstructed // answer, potentially grabbing them from the cached (unified) answer. // One has to be careful with this approach because inactive m-lines do // not always have an mid, making it tricky (impossible?) to find where // exactly and which m-lines are missing from the reconstructed answer. for (var i = 0; i < cached.media.length; i++) { var uLine = cached.media[i]; delete uLine.msid; delete uLine.sources; delete uLine.ssrcGroups; if (typeof sources2ul[i] === 'undefined') { if (!uLine.direction || uLine.direction === 'sendrecv') uLine.direction = 'recvonly'; else if (uLine.direction === 'sendonly') uLine.direction = 'inactive'; } else { if (!uLine.direction || uLine.direction === 'sendrecv') uLine.direction = 'sendrecv'; else if (uLine.direction === 'recvonly') uLine.direction = 'sendonly'; } uLine.sources = sources2ul[i]; uLine.candidates = candidates; uLine.iceUfrag = iceUfrag; uLine.icePwd = icePwd; uLine.fingerprint = fingerprint; uLine.rtp = rtp[uLine.type]; uLine.payloads = payloads[uLine.type]; uLine.rtcpFb = rtcpFb[uLine.type]; session.media.push(uLine); if (typeof uLine.mid === 'string') { // inactive lines don't/may not have an mid. mids.push(uLine.mid); } } } else { // SDP offer/answer (and the JSEP spec) forbids removing an m-section // under any circumstances. If we are no longer interested in sending a // track, we just remove the msid and ssrc attributes and set it to // either a=recvonly (as the reofferer, we must use recvonly if the // other side was previously sending on the m-section, but we can also // leave the possibility open if it wasn't previously in use), or // a=inactive. if (typeof cached !== 'undefined' && typeof cached.media !== 'undefined' && Array.isArray(cached.media)) { cached.media.forEach(function(uLine) { mids.push(uLine.mid); if (typeof mid2ul[uLine.mid] !== 'undefined') { session.media.push(mid2ul[uLine.mid]); } else { delete uLine.msid; delete uLine.sources; delete uLine.ssrcGroups; if (!uLine.direction || uLine.direction === 'sendrecv') { uLine.direction = 'sendonly'; } if (!uLine.direction || uLine.direction === 'recvonly') { uLine.direction = 'inactive'; } addSetupAttr (uLine); session.media.push(uLine); } }); } // Add all the remaining (new) m-lines of the transformed SDP. Object.keys(mid2ul).forEach(function(mid) { if (mids.indexOf(mid) === -1) { mids.push(mid); if (mid2ul[mid].direction === 'recvonly') { // This is a remote recvonly channel. Add its SSRC to the // appropriate sendrecv or sendonly channel. // TODO(gp) what if we don't have sendrecv/sendonly // channel? var done = false; session.media.some(function (uLine) { if ((uLine.direction === 'sendrecv' || uLine.direction === 'sendonly') && uLine.type === mid2ul[mid].type) { // mid2ul[mid] shouldn't have any ssrc-groups Object.keys(mid2ul[mid].sources).forEach( function (ssrc) { uLine.sources[ssrc] = mid2ul[mid].sources[ssrc]; }); done = true; return true; } }); if (!done) { session.media.push(mid2ul[mid]); } } else { session.media.push(mid2ul[mid]); } } }); } // After we have constructed the Plan Unified m-lines we can figure out // where (in which m-line) to place the 'recvonly SSRCs'. // Note: we assume here that we are the answerer in the O/A, so any offers // which we translate come from the remote side, while answers are local // (and so our last local description is cached as an 'answer'). ["audio", "video"].forEach(function (type) { if (!session || !session.media || !Array.isArray(session.media)) return; var idx = null; if (Object.keys(recvonlySsrcs[type]).length > 0) { idx = self.getFirstSendingIndexFromAnswer(type); if (idx === null){ // If this is the first offer we receive, we don't have a // cached answer. Assume that we will be sending media using // the first m-line for each media type. for (var i = 0; i < session.media.length; i++) { if (session.media[i].type === type) { idx = i; break; } } } } if (idx && session.media.length > idx) { var mLine = session.media[idx]; Object.keys(recvonlySsrcs[type]).forEach(function(ssrc) { if (mLine.sources && mLine.sources[ssrc]) { console.warn("Replacing an existing SSRC."); } if (!mLine.sources) { mLine.sources = {}; } mLine.sources[ssrc] = recvonlySsrcs[type][ssrc]; }); } }); if (typeof session.groups !== 'undefined') { // We regenerate the BUNDLE group (since we regenerated the mids) session.groups.some(function(group) { if (group.type === 'BUNDLE') { group.mids = mids.join(' '); return true; } }); } // msid semantic session.msidSemantic = { semantic: 'WMS', token: '*' }; var resStr = transform.write(session); // Cache the transformed SDP (Unified Plan) for later re-use in this // function. this.cache[desc.type] = resStr; return new RTCSessionDescription({ type: desc.type, sdp: resStr }); //#endregion }; },{"./array-equals":29,"./transform":32}],32:[function(require,module,exports){ /* Copyright @ 2015 Atlassian Pty Ltd * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ var transform = require('sdp-transform'); exports.write = function(session, opts) { if (typeof session !== 'undefined' && typeof session.media !== 'undefined' && Array.isArray(session.media)) { session.media.forEach(function (mLine) { // expand sources to ssrcs if (typeof mLine.sources !== 'undefined' && Object.keys(mLine.sources).length !== 0) { mLine.ssrcs = []; Object.keys(mLine.sources).forEach(function (ssrc) { var source = mLine.sources[ssrc]; Object.keys(source).forEach(function (attribute) { mLine.ssrcs.push({ id: ssrc, attribute: attribute, value: source[attribute] }); }); }); delete mLine.sources; } // join ssrcs in ssrc groups if (typeof mLine.ssrcGroups !== 'undefined' && Array.isArray(mLine.ssrcGroups)) { mLine.ssrcGroups.forEach(function (ssrcGroup) { if (typeof ssrcGroup.ssrcs !== 'undefined' && Array.isArray(ssrcGroup.ssrcs)) { ssrcGroup.ssrcs = ssrcGroup.ssrcs.join(' '); } }); } }); } // join group mids if (typeof session !== 'undefined' && typeof session.groups !== 'undefined' && Array.isArray(session.groups)) { session.groups.forEach(function (g) { if (typeof g.mids !== 'undefined' && Array.isArray(g.mids)) { g.mids = g.mids.join(' '); } }); } return transform.write(session, opts); }; exports.parse = function(sdp) { var session = transform.parse(sdp); if (typeof session !== 'undefined' && typeof session.media !== 'undefined' && Array.isArray(session.media)) { session.media.forEach(function (mLine) { // group sources attributes by ssrc if (typeof mLine.ssrcs !== 'undefined' && Array.isArray(mLine.ssrcs)) { mLine.sources = {}; mLine.ssrcs.forEach(function (ssrc) { if (!mLine.sources[ssrc.id]) mLine.sources[ssrc.id] = {}; mLine.sources[ssrc.id][ssrc.attribute] = ssrc.value; }); delete mLine.ssrcs; } // split ssrcs in ssrc groups if (typeof mLine.ssrcGroups !== 'undefined' && Array.isArray(mLine.ssrcGroups)) { mLine.ssrcGroups.forEach(function (ssrcGroup) { if (typeof ssrcGroup.ssrcs === 'string') { ssrcGroup.ssrcs = ssrcGroup.ssrcs.split(' '); } }); } }); } // split group mids if (typeof session !== 'undefined' && typeof session.groups !== 'undefined' && Array.isArray(session.groups)) { session.groups.forEach(function (g) { if (typeof g.mids === 'string') { g.mids = g.mids.split(' '); } }); } return session; }; },{"sdp-transform":26}],33:[function(require,module,exports){ /* eslint-env node */ 'use strict'; // SDP helpers. var SDPUtils = {}; // Generate an alphanumeric identifier for cname or mids. // TODO: use UUIDs instead? https://gist.github.com/jed/982883 SDPUtils.generateIdentifier = function() { return Math.random().toString(36).substr(2, 10); }; // The RTCP CNAME used by all peerconnections from the same JS. SDPUtils.localCName = SDPUtils.generateIdentifier(); // Splits SDP into lines, dealing with both CRLF and LF. SDPUtils.splitLines = function(blob) { return blob.trim().split('\n').map(function(line) { return line.trim(); }); }; // Splits SDP into sessionpart and mediasections. Ensures CRLF. SDPUtils.splitSections = function(blob) { var parts = blob.split('\nm='); return parts.map(function(part, index) { return (index > 0 ? 'm=' + part : part).trim() + '\r\n'; }); }; // Returns lines that start with a certain prefix. SDPUtils.matchPrefix = function(blob, prefix) { return SDPUtils.splitLines(blob).filter(function(line) { return line.indexOf(prefix) === 0; }); }; // Parses an ICE candidate line. Sample input: // candidate:702786350 2 udp 41819902 8.8.8.8 60769 typ relay raddr 8.8.8.8 // rport 55996" SDPUtils.parseCandidate = function(line) { var parts; // Parse both variants. if (line.indexOf('a=candidate:') === 0) { parts = line.substring(12).split(' '); } else { parts = line.substring(10).split(' '); } var candidate = { foundation: parts[0], component: parts[1], protocol: parts[2].toLowerCase(), priority: parseInt(parts[3], 10), ip: parts[4], port: parseInt(parts[5], 10), // skip parts[6] == 'typ' type: parts[7] }; for (var i = 8; i < parts.length; i += 2) { switch (parts[i]) { case 'raddr': candidate.relatedAddress = parts[i + 1]; break; case 'rport': candidate.relatedPort = parseInt(parts[i + 1], 10); break; case 'tcptype': candidate.tcpType = parts[i + 1]; break; default: // Unknown extensions are silently ignored. break; } } return candidate; }; // Translates a candidate object into SDP candidate attribute. SDPUtils.writeCandidate = function(candidate) { var sdp = []; sdp.push(candidate.foundation); sdp.push(candidate.component); sdp.push(candidate.protocol.toUpperCase()); sdp.push(candidate.priority); sdp.push(candidate.ip); sdp.push(candidate.port); var type = candidate.type; sdp.push('typ'); sdp.push(type); if (type !== 'host' && candidate.relatedAddress && candidate.relatedPort) { sdp.push('raddr'); sdp.push(candidate.relatedAddress); // was: relAddr sdp.push('rport'); sdp.push(candidate.relatedPort); // was: relPort } if (candidate.tcpType && candidate.protocol.toLowerCase() === 'tcp') { sdp.push('tcptype'); sdp.push(candidate.tcpType); } return 'candidate:' + sdp.join(' '); }; // Parses an rtpmap line, returns RTCRtpCoddecParameters. Sample input: // a=rtpmap:111 opus/48000/2 SDPUtils.parseRtpMap = function(line) { var parts = line.substr(9).split(' '); var parsed = { payloadType: parseInt(parts.shift(), 10) // was: id }; parts = parts[0].split('/'); parsed.name = parts[0]; parsed.clockRate = parseInt(parts[1], 10); // was: clockrate // was: channels parsed.numChannels = parts.length === 3 ? parseInt(parts[2], 10) : 1; return parsed; }; // Generate an a=rtpmap line from RTCRtpCodecCapability or // RTCRtpCodecParameters. SDPUtils.writeRtpMap = function(codec) { var pt = codec.payloadType; if (codec.preferredPayloadType !== undefined) { pt = codec.preferredPayloadType; } return 'a=rtpmap:' + pt + ' ' + codec.name + '/' + codec.clockRate + (codec.numChannels !== 1 ? '/' + codec.numChannels : '') + '\r\n'; }; // Parses an a=extmap line (headerextension from RFC 5285). Sample input: // a=extmap:2 urn:ietf:params:rtp-hdrext:toffset SDPUtils.parseExtmap = function(line) { var parts = line.substr(9).split(' '); return { id: parseInt(parts[0], 10), uri: parts[1] }; }; // Generates a=extmap line from RTCRtpHeaderExtensionParameters or // RTCRtpHeaderExtension. SDPUtils.writeExtmap = function(headerExtension) { return 'a=extmap:' + (headerExtension.id || headerExtension.preferredId) + ' ' + headerExtension.uri + '\r\n'; }; // Parses an ftmp line, returns dictionary. Sample input: // a=fmtp:96 vbr=on;cng=on // Also deals with vbr=on; cng=on SDPUtils.parseFmtp = function(line) { var parsed = {}; var kv; var parts = line.substr(line.indexOf(' ') + 1).split(';'); for (var j = 0; j < parts.length; j++) { kv = parts[j].trim().split('='); parsed[kv[0].trim()] = kv[1]; } return parsed; }; // Generates an a=ftmp line from RTCRtpCodecCapability or RTCRtpCodecParameters. SDPUtils.writeFmtp = function(codec) { var line = ''; var pt = codec.payloadType; if (codec.preferredPayloadType !== undefined) { pt = codec.preferredPayloadType; } if (codec.parameters && Object.keys(codec.parameters).length) { var params = []; Object.keys(codec.parameters).forEach(function(param) { params.push(param + '=' + codec.parameters[param]); }); line += 'a=fmtp:' + pt + ' ' + params.join(';') + '\r\n'; } return line; }; // Parses an rtcp-fb line, returns RTCPRtcpFeedback object. Sample input: // a=rtcp-fb:98 nack rpsi SDPUtils.parseRtcpFb = function(line) { var parts = line.substr(line.indexOf(' ') + 1).split(' '); return { type: parts.shift(), parameter: parts.join(' ') }; }; // Generate a=rtcp-fb lines from RTCRtpCodecCapability or RTCRtpCodecParameters. SDPUtils.writeRtcpFb = function(codec) { var lines = ''; var pt = codec.payloadType; if (codec.preferredPayloadType !== undefined) { pt = codec.preferredPayloadType; } if (codec.rtcpFeedback && codec.rtcpFeedback.length) { // FIXME: special handling for trr-int? codec.rtcpFeedback.forEach(function(fb) { lines += 'a=rtcp-fb:' + pt + ' ' + fb.type + (fb.parameter && fb.parameter.length ? ' ' + fb.parameter : '') + '\r\n'; }); } return lines; }; // Parses an RFC 5576 ssrc media attribute. Sample input: // a=ssrc:3735928559 cname:something SDPUtils.parseSsrcMedia = function(line) { var sp = line.indexOf(' '); var parts = { ssrc: parseInt(line.substr(7, sp - 7), 10) }; var colon = line.indexOf(':', sp); if (colon > -1) { parts.attribute = line.substr(sp + 1, colon - sp - 1); parts.value = line.substr(colon + 1); } else { parts.attribute = line.substr(sp + 1); } return parts; }; // Extracts DTLS parameters from SDP media section or sessionpart. // FIXME: for consistency with other functions this should only // get the fingerprint line as input. See also getIceParameters. SDPUtils.getDtlsParameters = function(mediaSection, sessionpart) { var lines = SDPUtils.splitLines(mediaSection); // Search in session part, too. lines = lines.concat(SDPUtils.splitLines(sessionpart)); var fpLine = lines.filter(function(line) { return line.indexOf('a=fingerprint:') === 0; })[0].substr(14); // Note: a=setup line is ignored since we use the 'auto' role. var dtlsParameters = { role: 'auto', fingerprints: [{ algorithm: fpLine.split(' ')[0], value: fpLine.split(' ')[1] }] }; return dtlsParameters; }; // Serializes DTLS parameters to SDP. SDPUtils.writeDtlsParameters = function(params, setupType) { var sdp = 'a=setup:' + setupType + '\r\n'; params.fingerprints.forEach(function(fp) { sdp += 'a=fingerprint:' + fp.algorithm + ' ' + fp.value + '\r\n'; }); return sdp; }; // Parses ICE information from SDP media section or sessionpart. // FIXME: for consistency with other functions this should only // get the ice-ufrag and ice-pwd lines as input. SDPUtils.getIceParameters = function(mediaSection, sessionpart) { var lines = SDPUtils.splitLines(mediaSection); // Search in session part, too. lines = lines.concat(SDPUtils.splitLines(sessionpart)); var iceParameters = { usernameFragment: lines.filter(function(line) { return line.indexOf('a=ice-ufrag:') === 0; })[0].substr(12), password: lines.filter(function(line) { return line.indexOf('a=ice-pwd:') === 0; })[0].substr(10) }; return iceParameters; }; // Serializes ICE parameters to SDP. SDPUtils.writeIceParameters = function(params) { return 'a=ice-ufrag:' + params.usernameFragment + '\r\n' + 'a=ice-pwd:' + params.password + '\r\n'; }; // Parses the SDP media section and returns RTCRtpParameters. SDPUtils.parseRtpParameters = function(mediaSection) { var description = { codecs: [], headerExtensions: [], fecMechanisms: [], rtcp: [] }; var lines = SDPUtils.splitLines(mediaSection); var mline = lines[0].split(' '); for (var i = 3; i < mline.length; i++) { // find all codecs from mline[3..] var pt = mline[i]; var rtpmapline = SDPUtils.matchPrefix( mediaSection, 'a=rtpmap:' + pt + ' ')[0]; if (rtpmapline) { var codec = SDPUtils.parseRtpMap(rtpmapline); var fmtps = SDPUtils.matchPrefix( mediaSection, 'a=fmtp:' + pt + ' '); // Only the first a=fmtp: is considered. codec.parameters = fmtps.length ? SDPUtils.parseFmtp(fmtps[0]) : {}; codec.rtcpFeedback = SDPUtils.matchPrefix( mediaSection, 'a=rtcp-fb:' + pt + ' ') .map(SDPUtils.parseRtcpFb); description.codecs.push(codec); // parse FEC mechanisms from rtpmap lines. switch (codec.name.toUpperCase()) { case 'RED': case 'ULPFEC': description.fecMechanisms.push(codec.name.toUpperCase()); break; default: // only RED and ULPFEC are recognized as FEC mechanisms. break; } } } SDPUtils.matchPrefix(mediaSection, 'a=extmap:').forEach(function(line) { description.headerExtensions.push(SDPUtils.parseExtmap(line)); }); // FIXME: parse rtcp. return description; }; // Generates parts of the SDP media section describing the capabilities / // parameters. SDPUtils.writeRtpDescription = function(kind, caps) { var sdp = ''; // Build the mline. sdp += 'm=' + kind + ' '; sdp += caps.codecs.length > 0 ? '9' : '0'; // reject if no codecs. sdp += ' UDP/TLS/RTP/SAVPF '; sdp += caps.codecs.map(function(codec) { if (codec.preferredPayloadType !== undefined) { return codec.preferredPayloadType; } return codec.payloadType; }).join(' ') + '\r\n'; sdp += 'c=IN IP4 0.0.0.0\r\n'; sdp += 'a=rtcp:9 IN IP4 0.0.0.0\r\n'; // Add a=rtpmap lines for each codec. Also fmtp and rtcp-fb. caps.codecs.forEach(function(codec) { sdp += SDPUtils.writeRtpMap(codec); sdp += SDPUtils.writeFmtp(codec); sdp += SDPUtils.writeRtcpFb(codec); }); // FIXME: add headerExtensions, fecMechanismÅŸ and rtcp. sdp += 'a=rtcp-mux\r\n'; return sdp; }; // Parses the SDP media section and returns an array of // RTCRtpEncodingParameters. SDPUtils.parseRtpEncodingParameters = function(mediaSection) { var encodingParameters = []; var description = SDPUtils.parseRtpParameters(mediaSection); var hasRed = description.fecMechanisms.indexOf('RED') !== -1; var hasUlpfec = description.fecMechanisms.indexOf('ULPFEC') !== -1; // filter a=ssrc:... cname:, ignore PlanB-msid var ssrcs = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:') .map(function(line) { return SDPUtils.parseSsrcMedia(line); }) .filter(function(parts) { return parts.attribute === 'cname'; }); var primarySsrc = ssrcs.length > 0 && ssrcs[0].ssrc; var secondarySsrc; var flows = SDPUtils.matchPrefix(mediaSection, 'a=ssrc-group:FID') .map(function(line) { var parts = line.split(' '); parts.shift(); return parts.map(function(part) { return parseInt(part, 10); }); }); if (flows.length > 0 && flows[0].length > 1 && flows[0][0] === primarySsrc) { secondarySsrc = flows[0][1]; } description.codecs.forEach(function(codec) { if (codec.name.toUpperCase() === 'RTX' && codec.parameters.apt) { var encParam = { ssrc: primarySsrc, codecPayloadType: parseInt(codec.parameters.apt, 10), rtx: { payloadType: codec.payloadType, ssrc: secondarySsrc } }; encodingParameters.push(encParam); if (hasRed) { encParam = JSON.parse(JSON.stringify(encParam)); encParam.fec = { ssrc: secondarySsrc, mechanism: hasUlpfec ? 'red+ulpfec' : 'red' }; encodingParameters.push(encParam); } } }); if (encodingParameters.length === 0 && primarySsrc) { encodingParameters.push({ ssrc: primarySsrc }); } // we support both b=AS and b=TIAS but interpret AS as TIAS. var bandwidth = SDPUtils.matchPrefix(mediaSection, 'b='); if (bandwidth.length) { if (bandwidth[0].indexOf('b=TIAS:') === 0) { bandwidth = parseInt(bandwidth[0].substr(7), 10); } else if (bandwidth[0].indexOf('b=AS:') === 0) { bandwidth = parseInt(bandwidth[0].substr(5), 10); } encodingParameters.forEach(function(params) { params.maxBitrate = bandwidth; }); } return encodingParameters; }; SDPUtils.writeSessionBoilerplate = function() { // FIXME: sess-id should be an NTP timestamp. return 'v=0\r\n' + 'o=thisisadapterortc 8169639915646943137 2 IN IP4 127.0.0.1\r\n' + 's=-\r\n' + 't=0 0\r\n'; }; SDPUtils.writeMediaSection = function(transceiver, caps, type, stream) { var sdp = SDPUtils.writeRtpDescription(transceiver.kind, caps); // Map ICE parameters (ufrag, pwd) to SDP. sdp += SDPUtils.writeIceParameters( transceiver.iceGatherer.getLocalParameters()); // Map DTLS parameters to SDP. sdp += SDPUtils.writeDtlsParameters( transceiver.dtlsTransport.getLocalParameters(), type === 'offer' ? 'actpass' : 'active'); sdp += 'a=mid:' + transceiver.mid + '\r\n'; if (transceiver.rtpSender && transceiver.rtpReceiver) { sdp += 'a=sendrecv\r\n'; } else if (transceiver.rtpSender) { sdp += 'a=sendonly\r\n'; } else if (transceiver.rtpReceiver) { sdp += 'a=recvonly\r\n'; } else { sdp += 'a=inactive\r\n'; } // FIXME: for RTX there might be multiple SSRCs. Not implemented in Edge yet. if (transceiver.rtpSender) { var msid = 'msid:' + stream.id + ' ' + transceiver.rtpSender.track.id + '\r\n'; sdp += 'a=' + msid; sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc + ' ' + msid; } // FIXME: this should be written by writeRtpDescription. sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc + ' cname:' + SDPUtils.localCName + '\r\n'; return sdp; }; // Gets the direction from the mediaSection or the sessionpart. SDPUtils.getDirection = function(mediaSection, sessionpart) { // Look for sendrecv, sendonly, recvonly, inactive, default to sendrecv. var lines = SDPUtils.splitLines(mediaSection); for (var i = 0; i < lines.length; i++) { switch (lines[i]) { case 'a=sendrecv': case 'a=sendonly': case 'a=recvonly': case 'a=inactive': return lines[i].substr(2); default: // FIXME: What should happen here? } } if (sessionpart) { return SDPUtils.getDirection(sessionpart); } return 'sendrecv'; }; // Expose public methods. module.exports = SDPUtils; },{}],34:[function(require,module,exports){ (function (global){ 'use strict'; var transportList = require('./transport-list'); module.exports = require('./main')(transportList); // TODO can't get rid of this until all servers do if ('_sockjs_onload' in global) { setTimeout(global._sockjs_onload, 1); } }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) },{"./main":47,"./transport-list":49}],35:[function(require,module,exports){ 'use strict'; var inherits = require('inherits') , Event = require('./event') ; function CloseEvent() { Event.call(this); this.initEvent('close', false, false); this.wasClean = false; this.code = 0; this.reason = ''; } inherits(CloseEvent, Event); module.exports = CloseEvent; },{"./event":37,"inherits":7}],36:[function(require,module,exports){ 'use strict'; var inherits = require('inherits') , EventTarget = require('./eventtarget') ; function EventEmitter() { EventTarget.call(this); } inherits(EventEmitter, EventTarget); EventEmitter.prototype.removeAllListeners = function(type) { if (type) { delete this._listeners[type]; } else { this._listeners = {}; } }; EventEmitter.prototype.once = function(type, listener) { var self = this , fired = false; function g() { self.removeListener(type, g); if (!fired) { fired = true; listener.apply(this, arguments); } } this.on(type, g); }; EventEmitter.prototype.emit = function() { var type = arguments[0]; var listeners = this._listeners[type]; if (!listeners) { return; } // equivalent of Array.prototype.slice.call(arguments, 1); var l = arguments.length; var args = new Array(l - 1); for (var ai = 1; ai < l; ai++) { args[ai - 1] = arguments[ai]; } for (var i = 0; i < listeners.length; i++) { listeners[i].apply(this, args); } }; EventEmitter.prototype.on = EventEmitter.prototype.addListener = EventTarget.prototype.addEventListener; EventEmitter.prototype.removeListener = EventTarget.prototype.removeEventListener; module.exports.EventEmitter = EventEmitter; },{"./eventtarget":38,"inherits":7}],37:[function(require,module,exports){ 'use strict'; function Event(eventType) { this.type = eventType; } Event.prototype.initEvent = function(eventType, canBubble, cancelable) { this.type = eventType; this.bubbles = canBubble; this.cancelable = cancelable; this.timeStamp = +new Date(); return this; }; Event.prototype.stopPropagation = function() {}; Event.prototype.preventDefault = function() {}; Event.CAPTURING_PHASE = 1; Event.AT_TARGET = 2; Event.BUBBLING_PHASE = 3; module.exports = Event; },{}],38:[function(require,module,exports){ 'use strict'; /* Simplified implementation of DOM2 EventTarget. * http://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-EventTarget */ function EventTarget() { this._listeners = {}; } EventTarget.prototype.addEventListener = function(eventType, listener) { if (!(eventType in this._listeners)) { this._listeners[eventType] = []; } var arr = this._listeners[eventType]; // #4 if (arr.indexOf(listener) === -1) { // Make a copy so as not to interfere with a current dispatchEvent. arr = arr.concat([listener]); } this._listeners[eventType] = arr; }; EventTarget.prototype.removeEventListener = function(eventType, listener) { var arr = this._listeners[eventType]; if (!arr) { return; } var idx = arr.indexOf(listener); if (idx !== -1) { if (arr.length > 1) { // Make a copy so as not to interfere with a current dispatchEvent. this._listeners[eventType] = arr.slice(0, idx).concat(arr.slice(idx + 1)); } else { delete this._listeners[eventType]; } return; } }; EventTarget.prototype.dispatchEvent = function() { var event = arguments[0]; var t = event.type; // equivalent of Array.prototype.slice.call(arguments, 0); var args = arguments.length === 1 ? [event] : Array.apply(null, arguments); // TODO: This doesn't match the real behavior; per spec, onfoo get // their place in line from the /first/ time they're set from // non-null. Although WebKit bumps it to the end every time it's // set. if (this['on' + t]) { this['on' + t].apply(this, args); } if (t in this._listeners) { // Grab a reference to the listeners list. removeEventListener may alter the list. var listeners = this._listeners[t]; for (var i = 0; i < listeners.length; i++) { listeners[i].apply(this, args); } } }; module.exports = EventTarget; },{}],39:[function(require,module,exports){ 'use strict'; var inherits = require('inherits') , Event = require('./event') ; function TransportMessageEvent(data) { Event.call(this); this.initEvent('message', false, false); this.data = data; } inherits(TransportMessageEvent, Event); module.exports = TransportMessageEvent; },{"./event":37,"inherits":7}],40:[function(require,module,exports){ 'use strict'; var JSON3 = require('json3') , iframeUtils = require('./utils/iframe') ; function FacadeJS(transport) { this._transport = transport; transport.on('message', this._transportMessage.bind(this)); transport.on('close', this._transportClose.bind(this)); } FacadeJS.prototype._transportClose = function(code, reason) { iframeUtils.postMessage('c', JSON3.stringify([code, reason])); }; FacadeJS.prototype._transportMessage = function(frame) { iframeUtils.postMessage('t', frame); }; FacadeJS.prototype._send = function(data) { this._transport.send(data); }; FacadeJS.prototype._close = function() { this._transport.close(); this._transport.removeAllListeners(); }; module.exports = FacadeJS; },{"./utils/iframe":80,"json3":8}],41:[function(require,module,exports){ (function (process){ 'use strict'; var urlUtils = require('./utils/url') , eventUtils = require('./utils/event') , JSON3 = require('json3') , FacadeJS = require('./facade') , InfoIframeReceiver = require('./info-iframe-receiver') , iframeUtils = require('./utils/iframe') , loc = require('./location') ; var debug = function() {}; if (process.env.NODE_ENV !== 'production') { debug = require('debug')('sockjs-client:iframe-bootstrap'); } module.exports = function(SockJS, availableTransports) { var transportMap = {}; availableTransports.forEach(function(at) { if (at.facadeTransport) { transportMap[at.facadeTransport.transportName] = at.facadeTransport; } }); // hard-coded for the info iframe // TODO see if we can make this more dynamic transportMap[InfoIframeReceiver.transportName] = InfoIframeReceiver; var parentOrigin; /* eslint-disable camelcase */ SockJS.bootstrap_iframe = function() { /* eslint-enable camelcase */ var facade; iframeUtils.currentWindowId = loc.hash.slice(1); var onMessage = function(e) { if (e.source !== parent) { return; } if (typeof parentOrigin === 'undefined') { parentOrigin = e.origin; } if (e.origin !== parentOrigin) { return; } var iframeMessage; try { iframeMessage = JSON3.parse(e.data); } catch (ignored) { debug('bad json', e.data); return; } if (iframeMessage.windowId !== iframeUtils.currentWindowId) { return; } switch (iframeMessage.type) { case 's': var p; try { p = JSON3.parse(iframeMessage.data); } catch (ignored) { debug('bad json', iframeMessage.data); break; } var version = p[0]; var transport = p[1]; var transUrl = p[2]; var baseUrl = p[3]; debug(version, transport, transUrl, baseUrl); // change this to semver logic if (version !== SockJS.version) { throw new Error('Incompatible SockJS! Main site uses:' + ' "' + version + '", the iframe:' + ' "' + SockJS.version + '".'); } if (!urlUtils.isOriginEqual(transUrl, loc.href) || !urlUtils.isOriginEqual(baseUrl, loc.href)) { throw new Error('Can\'t connect to different domain from within an ' + 'iframe. (' + loc.href + ', ' + transUrl + ', ' + baseUrl + ')'); } facade = new FacadeJS(new transportMap[transport](transUrl, baseUrl)); break; case 'm': facade._send(iframeMessage.data); break; case 'c': if (facade) { facade._close(); } facade = null; break; } }; eventUtils.attachEvent('message', onMessage); // Start iframeUtils.postMessage('s'); }; }; }).call(this,require('_process')) },{"./facade":40,"./info-iframe-receiver":43,"./location":46,"./utils/event":79,"./utils/iframe":80,"./utils/url":85,"_process":110,"debug":1,"json3":8}],42:[function(require,module,exports){ (function (process){ 'use strict'; var EventEmitter = require('events').EventEmitter , inherits = require('inherits') , JSON3 = require('json3') , objectUtils = require('./utils/object') ; var debug = function() {}; if (process.env.NODE_ENV !== 'production') { debug = require('debug')('sockjs-client:info-ajax'); } function InfoAjax(url, AjaxObject) { EventEmitter.call(this); var self = this; var t0 = +new Date(); this.xo = new AjaxObject('GET', url); this.xo.once('finish', function(status, text) { var info, rtt; if (status === 200) { rtt = (+new Date()) - t0; if (text) { try { info = JSON3.parse(text); } catch (e) { debug('bad json', text); } } if (!objectUtils.isObject(info)) { info = {}; } } self.emit('finish', info, rtt); self.removeAllListeners(); }); } inherits(InfoAjax, EventEmitter); InfoAjax.prototype.close = function() { this.removeAllListeners(); this.xo.close(); }; module.exports = InfoAjax; }).call(this,require('_process')) },{"./utils/object":82,"_process":110,"debug":1,"events":36,"inherits":7,"json3":8}],43:[function(require,module,exports){ 'use strict'; var inherits = require('inherits') , EventEmitter = require('events').EventEmitter , JSON3 = require('json3') , XHRLocalObject = require('./transport/sender/xhr-local') , InfoAjax = require('./info-ajax') ; function InfoReceiverIframe(transUrl) { var self = this; EventEmitter.call(this); this.ir = new InfoAjax(transUrl, XHRLocalObject); this.ir.once('finish', function(info, rtt) { self.ir = null; self.emit('message', JSON3.stringify([info, rtt])); }); } inherits(InfoReceiverIframe, EventEmitter); InfoReceiverIframe.transportName = 'iframe-info-receiver'; InfoReceiverIframe.prototype.close = function() { if (this.ir) { this.ir.close(); this.ir = null; } this.removeAllListeners(); }; module.exports = InfoReceiverIframe; },{"./info-ajax":42,"./transport/sender/xhr-local":70,"events":36,"inherits":7,"json3":8}],44:[function(require,module,exports){ (function (process,global){ 'use strict'; var EventEmitter = require('events').EventEmitter , inherits = require('inherits') , JSON3 = require('json3') , utils = require('./utils/event') , IframeTransport = require('./transport/iframe') , InfoReceiverIframe = require('./info-iframe-receiver') ; var debug = function() {}; if (process.env.NODE_ENV !== 'production') { debug = require('debug')('sockjs-client:info-iframe'); } function InfoIframe(baseUrl, url) { var self = this; EventEmitter.call(this); var go = function() { var ifr = self.ifr = new IframeTransport(InfoReceiverIframe.transportName, url, baseUrl); ifr.once('message', function(msg) { if (msg) { var d; try { d = JSON3.parse(msg); } catch (e) { debug('bad json', msg); self.emit('finish'); self.close(); return; } var info = d[0], rtt = d[1]; self.emit('finish', info, rtt); } self.close(); }); ifr.once('close', function() { self.emit('finish'); self.close(); }); }; // TODO this seems the same as the 'needBody' from transports if (!global.document.body) { utils.attachEvent('load', go); } else { go(); } } inherits(InfoIframe, EventEmitter); InfoIframe.enabled = function() { return IframeTransport.enabled(); }; InfoIframe.prototype.close = function() { if (this.ifr) { this.ifr.close(); } this.removeAllListeners(); this.ifr = null; }; module.exports = InfoIframe; }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) },{"./info-iframe-receiver":43,"./transport/iframe":55,"./utils/event":79,"_process":110,"debug":1,"events":36,"inherits":7,"json3":8}],45:[function(require,module,exports){ (function (process){ 'use strict'; var EventEmitter = require('events').EventEmitter , inherits = require('inherits') , urlUtils = require('./utils/url') , XDR = require('./transport/sender/xdr') , XHRCors = require('./transport/sender/xhr-cors') , XHRLocal = require('./transport/sender/xhr-local') , XHRFake = require('./transport/sender/xhr-fake') , InfoIframe = require('./info-iframe') , InfoAjax = require('./info-ajax') ; var debug = function() {}; if (process.env.NODE_ENV !== 'production') { debug = require('debug')('sockjs-client:info-receiver'); } function InfoReceiver(baseUrl, urlInfo) { debug(baseUrl); var self = this; EventEmitter.call(this); setTimeout(function() { self.doXhr(baseUrl, urlInfo); }, 0); } inherits(InfoReceiver, EventEmitter); // TODO this is currently ignoring the list of available transports and the whitelist InfoReceiver._getReceiver = function(baseUrl, url, urlInfo) { // determine method of CORS support (if needed) if (urlInfo.sameOrigin) { return new InfoAjax(url, XHRLocal); } if (XHRCors.enabled) { return new InfoAjax(url, XHRCors); } if (XDR.enabled && urlInfo.sameScheme) { return new InfoAjax(url, XDR); } if (InfoIframe.enabled()) { return new InfoIframe(baseUrl, url); } return new InfoAjax(url, XHRFake); }; InfoReceiver.prototype.doXhr = function(baseUrl, urlInfo) { var self = this , url = urlUtils.addPath(baseUrl, '/info') ; debug('doXhr', url); this.xo = InfoReceiver._getReceiver(baseUrl, url, urlInfo); this.timeoutRef = setTimeout(function() { debug('timeout'); self._cleanup(false); self.emit('finish'); }, InfoReceiver.timeout); this.xo.once('finish', function(info, rtt) { debug('finish', info, rtt); self._cleanup(true); self.emit('finish', info, rtt); }); }; InfoReceiver.prototype._cleanup = function(wasClean) { debug('_cleanup'); clearTimeout(this.timeoutRef); this.timeoutRef = null; if (!wasClean && this.xo) { this.xo.close(); } this.xo = null; }; InfoReceiver.prototype.close = function() { debug('close'); this.removeAllListeners(); this._cleanup(false); }; InfoReceiver.timeout = 8000; module.exports = InfoReceiver; }).call(this,require('_process')) },{"./info-ajax":42,"./info-iframe":44,"./transport/sender/xdr":67,"./transport/sender/xhr-cors":68,"./transport/sender/xhr-fake":69,"./transport/sender/xhr-local":70,"./utils/url":85,"_process":110,"debug":1,"events":36,"inherits":7}],46:[function(require,module,exports){ (function (global){ 'use strict'; module.exports = global.location || { origin: 'http://localhost:80' , protocol: 'http' , host: 'localhost' , port: 80 , href: 'http://localhost/' , hash: '' }; }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) },{}],47:[function(require,module,exports){ (function (process,global){ 'use strict'; require('./shims'); var URL = require('url-parse') , inherits = require('inherits') , JSON3 = require('json3') , random = require('./utils/random') , escape = require('./utils/escape') , urlUtils = require('./utils/url') , eventUtils = require('./utils/event') , transport = require('./utils/transport') , objectUtils = require('./utils/object') , browser = require('./utils/browser') , log = require('./utils/log') , Event = require('./event/event') , EventTarget = require('./event/eventtarget') , loc = require('./location') , CloseEvent = require('./event/close') , TransportMessageEvent = require('./event/trans-message') , InfoReceiver = require('./info-receiver') ; var debug = function() {}; if (process.env.NODE_ENV !== 'production') { debug = require('debug')('sockjs-client:main'); } var transports; // follow constructor steps defined at http://dev.w3.org/html5/websockets/#the-websocket-interface function SockJS(url, protocols, options) { if (!(this instanceof SockJS)) { return new SockJS(url, protocols, options); } if (arguments.length < 1) { throw new TypeError("Failed to construct 'SockJS: 1 argument required, but only 0 present"); } EventTarget.call(this); this.readyState = SockJS.CONNECTING; this.extensions = ''; this.protocol = ''; // non-standard extension options = options || {}; if (options.protocols_whitelist) { log.warn("'protocols_whitelist' is DEPRECATED. Use 'transports' instead."); } this._transportsWhitelist = options.transports; this._transportOptions = options.transportOptions || {}; var sessionId = options.sessionId || 8; if (typeof sessionId === 'function') { this._generateSessionId = sessionId; } else if (typeof sessionId === 'number') { this._generateSessionId = function() { return random.string(sessionId); }; } else { throw new TypeError('If sessionId is used in the options, it needs to be a number or a function.'); } this._server = options.server || random.numberString(1000); // Step 1 of WS spec - parse and validate the url. Issue #8 var parsedUrl = new URL(url); if (!parsedUrl.host || !parsedUrl.protocol) { throw new SyntaxError("The URL '" + url + "' is invalid"); } else if (parsedUrl.hash) { throw new SyntaxError('The URL must not contain a fragment'); } else if (parsedUrl.protocol !== 'http:' && parsedUrl.protocol !== 'https:') { throw new SyntaxError("The URL's scheme must be either 'http:' or 'https:'. '" + parsedUrl.protocol + "' is not allowed."); } var secure = parsedUrl.protocol === 'https:'; // Step 2 - don't allow secure origin with an insecure protocol if (loc.protocol === 'https' && !secure) { throw new Error('SecurityError: An insecure SockJS connection may not be initiated from a page loaded over HTTPS'); } // Step 3 - check port access - no need here // Step 4 - parse protocols argument if (!protocols) { protocols = []; } else if (!Array.isArray(protocols)) { protocols = [protocols]; } // Step 5 - check protocols argument var sortedProtocols = protocols.sort(); sortedProtocols.forEach(function(proto, i) { if (!proto) { throw new SyntaxError("The protocols entry '" + proto + "' is invalid."); } if (i < (sortedProtocols.length - 1) && proto === sortedProtocols[i + 1]) { throw new SyntaxError("The protocols entry '" + proto + "' is duplicated."); } }); // Step 6 - convert origin var o = urlUtils.getOrigin(loc.href); this._origin = o ? o.toLowerCase() : null; // remove the trailing slash parsedUrl.set('pathname', parsedUrl.pathname.replace(/\/+$/, '')); // store the sanitized url this.url = parsedUrl.href; debug('using url', this.url); // Step 7 - start connection in background // obtain server info // http://sockjs.github.io/sockjs-protocol/sockjs-protocol-0.3.3.html#section-26 this._urlInfo = { nullOrigin: !browser.hasDomain() , sameOrigin: urlUtils.isOriginEqual(this.url, loc.href) , sameScheme: urlUtils.isSchemeEqual(this.url, loc.href) }; this._ir = new InfoReceiver(this.url, this._urlInfo); this._ir.once('finish', this._receiveInfo.bind(this)); } inherits(SockJS, EventTarget); function userSetCode(code) { return code === 1000 || (code >= 3000 && code <= 4999); } SockJS.prototype.close = function(code, reason) { // Step 1 if (code && !userSetCode(code)) { throw new Error('InvalidAccessError: Invalid code'); } // Step 2.4 states the max is 123 bytes, but we are just checking length if (reason && reason.length > 123) { throw new SyntaxError('reason argument has an invalid length'); } // Step 3.1 if (this.readyState === SockJS.CLOSING || this.readyState === SockJS.CLOSED) { return; } // TODO look at docs to determine how to set this var wasClean = true; this._close(code || 1000, reason || 'Normal closure', wasClean); }; SockJS.prototype.send = function(data) { // #13 - convert anything non-string to string // TODO this currently turns objects into [object Object] if (typeof data !== 'string') { data = '' + data; } if (this.readyState === SockJS.CONNECTING) { throw new Error('InvalidStateError: The connection has not been established yet'); } if (this.readyState !== SockJS.OPEN) { return; } this._transport.send(escape.quote(data)); }; SockJS.version = require('./version'); SockJS.CONNECTING = 0; SockJS.OPEN = 1; SockJS.CLOSING = 2; SockJS.CLOSED = 3; SockJS.prototype._receiveInfo = function(info, rtt) { debug('_receiveInfo', rtt); this._ir = null; if (!info) { this._close(1002, 'Cannot connect to server'); return; } // establish a round-trip timeout (RTO) based on the // round-trip time (RTT) this._rto = this.countRTO(rtt); // allow server to override url used for the actual transport this._transUrl = info.base_url ? info.base_url : this.url; info = objectUtils.extend(info, this._urlInfo); debug('info', info); // determine list of desired and supported transports var enabledTransports = transports.filterToEnabled(this._transportsWhitelist, info); this._transports = enabledTransports.main; debug(this._transports.length + ' enabled transports'); this._connect(); }; SockJS.prototype._connect = function() { for (var Transport = this._transports.shift(); Transport; Transport = this._transports.shift()) { debug('attempt', Transport.transportName); if (Transport.needBody) { if (!global.document.body || (typeof global.document.readyState !== 'undefined' && global.document.readyState !== 'complete' && global.document.readyState !== 'interactive')) { debug('waiting for body'); this._transports.unshift(Transport); eventUtils.attachEvent('load', this._connect.bind(this)); return; } } // calculate timeout based on RTO and round trips. Default to 5s var timeoutMs = (this._rto * Transport.roundTrips) || 5000; this._transportTimeoutId = setTimeout(this._transportTimeout.bind(this), timeoutMs); debug('using timeout', timeoutMs); var transportUrl = urlUtils.addPath(this._transUrl, '/' + this._server + '/' + this._generateSessionId()); var options = this._transportOptions[Transport.transportName]; debug('transport url', transportUrl); var transportObj = new Transport(transportUrl, this._transUrl, options); transportObj.on('message', this._transportMessage.bind(this)); transportObj.once('close', this._transportClose.bind(this)); transportObj.transportName = Transport.transportName; this._transport = transportObj; return; } this._close(2000, 'All transports failed', false); }; SockJS.prototype._transportTimeout = function() { debug('_transportTimeout'); if (this.readyState === SockJS.CONNECTING) { this._transportClose(2007, 'Transport timed out'); } }; SockJS.prototype._transportMessage = function(msg) { debug('_transportMessage', msg); var self = this , type = msg.slice(0, 1) , content = msg.slice(1) , payload ; // first check for messages that don't need a payload switch (type) { case 'o': this._open(); return; case 'h': this.dispatchEvent(new Event('heartbeat')); debug('heartbeat', this.transport); return; } if (content) { try { payload = JSON3.parse(content); } catch (e) { debug('bad json', content); } } if (typeof payload === 'undefined') { debug('empty payload', content); return; } switch (type) { case 'a': if (Array.isArray(payload)) { payload.forEach(function(p) { debug('message', self.transport, p); self.dispatchEvent(new TransportMessageEvent(p)); }); } break; case 'm': debug('message', this.transport, payload); this.dispatchEvent(new TransportMessageEvent(payload)); break; case 'c': if (Array.isArray(payload) && payload.length === 2) { this._close(payload[0], payload[1], true); } break; } }; SockJS.prototype._transportClose = function(code, reason) { debug('_transportClose', this.transport, code, reason); if (this._transport) { this._transport.removeAllListeners(); this._transport = null; this.transport = null; } if (!userSetCode(code) && code !== 2000 && this.readyState === SockJS.CONNECTING) { this._connect(); return; } this._close(code, reason); }; SockJS.prototype._open = function() { debug('_open', this._transport.transportName, this.readyState); if (this.readyState === SockJS.CONNECTING) { if (this._transportTimeoutId) { clearTimeout(this._transportTimeoutId); this._transportTimeoutId = null; } this.readyState = SockJS.OPEN; this.transport = this._transport.transportName; this.dispatchEvent(new Event('open')); debug('connected', this.transport); } else { // The server might have been restarted, and lost track of our // connection. this._close(1006, 'Server lost session'); } }; SockJS.prototype._close = function(code, reason, wasClean) { debug('_close', this.transport, code, reason, wasClean, this.readyState); var forceFail = false; if (this._ir) { forceFail = true; this._ir.close(); this._ir = null; } if (this._transport) { this._transport.close(); this._transport = null; this.transport = null; } if (this.readyState === SockJS.CLOSED) { throw new Error('InvalidStateError: SockJS has already been closed'); } this.readyState = SockJS.CLOSING; setTimeout(function() { this.readyState = SockJS.CLOSED; if (forceFail) { this.dispatchEvent(new Event('error')); } var e = new CloseEvent('close'); e.wasClean = wasClean || false; e.code = code || 1000; e.reason = reason; this.dispatchEvent(e); this.onmessage = this.onclose = this.onerror = null; debug('disconnected'); }.bind(this), 0); }; // See: http://www.erg.abdn.ac.uk/~gerrit/dccp/notes/ccid2/rto_estimator/ // and RFC 2988. SockJS.prototype.countRTO = function(rtt) { // In a local environment, when using IE8/9 and the `jsonp-polling` // transport the time needed to establish a connection (the time that pass // from the opening of the transport to the call of `_dispatchOpen`) is // around 200msec (the lower bound used in the article above) and this // causes spurious timeouts. For this reason we calculate a value slightly // larger than that used in the article. if (rtt > 100) { return 4 * rtt; // rto > 400msec } return 300 + rtt; // 300msec < rto <= 400msec }; module.exports = function(availableTransports) { transports = transport(availableTransports); require('./iframe-bootstrap')(SockJS, availableTransports); return SockJS; }; }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) },{"./event/close":35,"./event/event":37,"./event/eventtarget":38,"./event/trans-message":39,"./iframe-bootstrap":41,"./info-receiver":45,"./location":46,"./shims":48,"./utils/browser":77,"./utils/escape":78,"./utils/event":79,"./utils/log":81,"./utils/object":82,"./utils/random":83,"./utils/transport":84,"./utils/url":85,"./version":86,"_process":110,"debug":1,"inherits":7,"json3":8,"url-parse":88}],48:[function(require,module,exports){ /* eslint-disable */ /* jscs: disable */ 'use strict'; // pulled specific shims from https://github.com/es-shims/es5-shim var ArrayPrototype = Array.prototype; var ObjectPrototype = Object.prototype; var FunctionPrototype = Function.prototype; var StringPrototype = String.prototype; var array_slice = ArrayPrototype.slice; var _toString = ObjectPrototype.toString; var isFunction = function (val) { return ObjectPrototype.toString.call(val) === '[object Function]'; }; var isArray = function isArray(obj) { return _toString.call(obj) === '[object Array]'; }; var isString = function isString(obj) { return _toString.call(obj) === '[object String]'; }; var supportsDescriptors = Object.defineProperty && (function () { try { Object.defineProperty({}, 'x', {}); return true; } catch (e) { /* this is ES3 */ return false; } }()); // Define configurable, writable and non-enumerable props // if they don't exist. var defineProperty; if (supportsDescriptors) { defineProperty = function (object, name, method, forceAssign) { if (!forceAssign && (name in object)) { return; } Object.defineProperty(object, name, { configurable: true, enumerable: false, writable: true, value: method }); }; } else { defineProperty = function (object, name, method, forceAssign) { if (!forceAssign && (name in object)) { return; } object[name] = method; }; } var defineProperties = function (object, map, forceAssign) { for (var name in map) { if (ObjectPrototype.hasOwnProperty.call(map, name)) { defineProperty(object, name, map[name], forceAssign); } } }; var toObject = function (o) { if (o == null) { // this matches both null and undefined throw new TypeError("can't convert " + o + ' to object'); } return Object(o); }; // // Util // ====== // // ES5 9.4 // http://es5.github.com/#x9.4 // http://jsperf.com/to-integer function toInteger(num) { var n = +num; if (n !== n) { // isNaN n = 0; } else if (n !== 0 && n !== (1 / 0) && n !== -(1 / 0)) { n = (n > 0 || -1) * Math.floor(Math.abs(n)); } return n; } function ToUint32(x) { return x >>> 0; } // // Function // ======== // // ES-5 15.3.4.5 // http://es5.github.com/#x15.3.4.5 function Empty() {} defineProperties(FunctionPrototype, { bind: function bind(that) { // .length is 1 // 1. Let Target be the this value. var target = this; // 2. If IsCallable(Target) is false, throw a TypeError exception. if (!isFunction(target)) { throw new TypeError('Function.prototype.bind called on incompatible ' + target); } // 3. Let A be a new (possibly empty) internal list of all of the // argument values provided after thisArg (arg1, arg2 etc), in order. // XXX slicedArgs will stand in for "A" if used var args = array_slice.call(arguments, 1); // for normal call // 4. Let F be a new native ECMAScript object. // 11. Set the [[Prototype]] internal property of F to the standard // built-in Function prototype object as specified in 15.3.3.1. // 12. Set the [[Call]] internal property of F as described in // 15.3.4.5.1. // 13. Set the [[Construct]] internal property of F as described in // 15.3.4.5.2. // 14. Set the [[HasInstance]] internal property of F as described in // 15.3.4.5.3. var binder = function () { if (this instanceof bound) { // 15.3.4.5.2 [[Construct]] // When the [[Construct]] internal method of a function object, // F that was created using the bind function is called with a // list of arguments ExtraArgs, the following steps are taken: // 1. Let target be the value of F's [[TargetFunction]] // internal property. // 2. If target has no [[Construct]] internal method, a // TypeError exception is thrown. // 3. Let boundArgs be the value of F's [[BoundArgs]] internal // property. // 4. Let args be a new list containing the same values as the // list boundArgs in the same order followed by the same // values as the list ExtraArgs in the same order. // 5. Return the result of calling the [[Construct]] internal // method of target providing args as the arguments. var result = target.apply( this, args.concat(array_slice.call(arguments)) ); if (Object(result) === result) { return result; } return this; } else { // 15.3.4.5.1 [[Call]] // When the [[Call]] internal method of a function object, F, // which was created using the bind function is called with a // this value and a list of arguments ExtraArgs, the following // steps are taken: // 1. Let boundArgs be the value of F's [[BoundArgs]] internal // property. // 2. Let boundThis be the value of F's [[BoundThis]] internal // property. // 3. Let target be the value of F's [[TargetFunction]] internal // property. // 4. Let args be a new list containing the same values as the // list boundArgs in the same order followed by the same // values as the list ExtraArgs in the same order. // 5. Return the result of calling the [[Call]] internal method // of target providing boundThis as the this value and // providing args as the arguments. // equiv: target.call(this, ...boundArgs, ...args) return target.apply( that, args.concat(array_slice.call(arguments)) ); } }; // 15. If the [[Class]] internal property of Target is "Function", then // a. Let L be the length property of Target minus the length of A. // b. Set the length own property of F to either 0 or L, whichever is // larger. // 16. Else set the length own property of F to 0. var boundLength = Math.max(0, target.length - args.length); // 17. Set the attributes of the length own property of F to the values // specified in 15.3.5.1. var boundArgs = []; for (var i = 0; i < boundLength; i++) { boundArgs.push('$' + i); } // XXX Build a dynamic function with desired amount of arguments is the only // way to set the length property of a function. // In environments where Content Security Policies enabled (Chrome extensions, // for ex.) all use of eval or Function costructor throws an exception. // However in all of these environments Function.prototype.bind exists // and so this code will never be executed. var bound = Function('binder', 'return function (' + boundArgs.join(',') + '){ return binder.apply(this, arguments); }')(binder); if (target.prototype) { Empty.prototype = target.prototype; bound.prototype = new Empty(); // Clean up dangling references. Empty.prototype = null; } // TODO // 18. Set the [[Extensible]] internal property of F to true. // TODO // 19. Let thrower be the [[ThrowTypeError]] function Object (13.2.3). // 20. Call the [[DefineOwnProperty]] internal method of F with // arguments "caller", PropertyDescriptor {[[Get]]: thrower, [[Set]]: // thrower, [[Enumerable]]: false, [[Configurable]]: false}, and // false. // 21. Call the [[DefineOwnProperty]] internal method of F with // arguments "arguments", PropertyDescriptor {[[Get]]: thrower, // [[Set]]: thrower, [[Enumerable]]: false, [[Configurable]]: false}, // and false. // TODO // NOTE Function objects created using Function.prototype.bind do not // have a prototype property or the [[Code]], [[FormalParameters]], and // [[Scope]] internal properties. // XXX can't delete prototype in pure-js. // 22. Return F. return bound; } }); // // Array // ===== // // ES5 15.4.3.2 // http://es5.github.com/#x15.4.3.2 // https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/isArray defineProperties(Array, { isArray: isArray }); var boxedString = Object('a'); var splitString = boxedString[0] !== 'a' || !(0 in boxedString); var properlyBoxesContext = function properlyBoxed(method) { // Check node 0.6.21 bug where third parameter is not boxed var properlyBoxesNonStrict = true; var properlyBoxesStrict = true; if (method) { method.call('foo', function (_, __, context) { if (typeof context !== 'object') { properlyBoxesNonStrict = false; } }); method.call([1], function () { 'use strict'; properlyBoxesStrict = typeof this === 'string'; }, 'x'); } return !!method && properlyBoxesNonStrict && properlyBoxesStrict; }; defineProperties(ArrayPrototype, { forEach: function forEach(fun /*, thisp*/) { var object = toObject(this), self = splitString && isString(this) ? this.split('') : object, thisp = arguments[1], i = -1, length = self.length >>> 0; // If no callback function or if callback is not a callable function if (!isFunction(fun)) { throw new TypeError(); // TODO message } while (++i < length) { if (i in self) { // Invoke the callback function with call, passing arguments: // context, property value, property key, thisArg object // context fun.call(thisp, self[i], i, object); } } } }, !properlyBoxesContext(ArrayPrototype.forEach)); // ES5 15.4.4.14 // http://es5.github.com/#x15.4.4.14 // https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/indexOf var hasFirefox2IndexOfBug = Array.prototype.indexOf && [0, 1].indexOf(1, 2) !== -1; defineProperties(ArrayPrototype, { indexOf: function indexOf(sought /*, fromIndex */ ) { var self = splitString && isString(this) ? this.split('') : toObject(this), length = self.length >>> 0; if (!length) { return -1; } var i = 0; if (arguments.length > 1) { i = toInteger(arguments[1]); } // handle negative indices i = i >= 0 ? i : Math.max(0, length + i); for (; i < length; i++) { if (i in self && self[i] === sought) { return i; } } return -1; } }, hasFirefox2IndexOfBug); // // String // ====== // // ES5 15.5.4.14 // http://es5.github.com/#x15.5.4.14 // [bugfix, IE lt 9, firefox 4, Konqueror, Opera, obscure browsers] // Many browsers do not split properly with regular expressions or they // do not perform the split correctly under obscure conditions. // See http://blog.stevenlevithan.com/archives/cross-browser-split // I've tested in many browsers and this seems to cover the deviant ones: // 'ab'.split(/(?:ab)*/) should be ["", ""], not [""] // '.'.split(/(.?)(.?)/) should be ["", ".", "", ""], not ["", ""] // 'tesst'.split(/(s)*/) should be ["t", undefined, "e", "s", "t"], not // [undefined, "t", undefined, "e", ...] // ''.split(/.?/) should be [], not [""] // '.'.split(/()()/) should be ["."], not ["", "", "."] var string_split = StringPrototype.split; if ( 'ab'.split(/(?:ab)*/).length !== 2 || '.'.split(/(.?)(.?)/).length !== 4 || 'tesst'.split(/(s)*/)[1] === 't' || 'test'.split(/(?:)/, -1).length !== 4 || ''.split(/.?/).length || '.'.split(/()()/).length > 1 ) { (function () { var compliantExecNpcg = /()??/.exec('')[1] === void 0; // NPCG: nonparticipating capturing group StringPrototype.split = function (separator, limit) { var string = this; if (separator === void 0 && limit === 0) { return []; } // If `separator` is not a regex, use native split if (_toString.call(separator) !== '[object RegExp]') { return string_split.call(this, separator, limit); } var output = [], flags = (separator.ignoreCase ? 'i' : '') + (separator.multiline ? 'm' : '') + (separator.extended ? 'x' : '') + // Proposed for ES6 (separator.sticky ? 'y' : ''), // Firefox 3+ lastLastIndex = 0, // Make `global` and avoid `lastIndex` issues by working with a copy separator2, match, lastIndex, lastLength; separator = new RegExp(separator.source, flags + 'g'); string += ''; // Type-convert if (!compliantExecNpcg) { // Doesn't need flags gy, but they don't hurt separator2 = new RegExp('^' + separator.source + '$(?!\\s)', flags); } /* Values for `limit`, per the spec: * If undefined: 4294967295 // Math.pow(2, 32) - 1 * If 0, Infinity, or NaN: 0 * If positive number: limit = Math.floor(limit); if (limit > 4294967295) limit -= 4294967296; * If negative number: 4294967296 - Math.floor(Math.abs(limit)) * If other: Type-convert, then use the above rules */ limit = limit === void 0 ? -1 >>> 0 : // Math.pow(2, 32) - 1 ToUint32(limit); while (match = separator.exec(string)) { // `separator.lastIndex` is not reliable cross-browser lastIndex = match.index + match[0].length; if (lastIndex > lastLastIndex) { output.push(string.slice(lastLastIndex, match.index)); // Fix browsers whose `exec` methods don't consistently return `undefined` for // nonparticipating capturing groups if (!compliantExecNpcg && match.length > 1) { match[0].replace(separator2, function () { for (var i = 1; i < arguments.length - 2; i++) { if (arguments[i] === void 0) { match[i] = void 0; } } }); } if (match.length > 1 && match.index < string.length) { ArrayPrototype.push.apply(output, match.slice(1)); } lastLength = match[0].length; lastLastIndex = lastIndex; if (output.length >= limit) { break; } } if (separator.lastIndex === match.index) { separator.lastIndex++; // Avoid an infinite loop } } if (lastLastIndex === string.length) { if (lastLength || !separator.test('')) { output.push(''); } } else { output.push(string.slice(lastLastIndex)); } return output.length > limit ? output.slice(0, limit) : output; }; }()); // [bugfix, chrome] // If separator is undefined, then the result array contains just one String, // which is the this value (converted to a String). If limit is not undefined, // then the output array is truncated so that it contains no more than limit // elements. // "0".split(undefined, 0) -> [] } else if ('0'.split(void 0, 0).length) { StringPrototype.split = function split(separator, limit) { if (separator === void 0 && limit === 0) { return []; } return string_split.call(this, separator, limit); }; } // ES5 15.5.4.20 // whitespace from: http://es5.github.io/#x15.5.4.20 var ws = '\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003' + '\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028' + '\u2029\uFEFF'; var zeroWidth = '\u200b'; var wsRegexChars = '[' + ws + ']'; var trimBeginRegexp = new RegExp('^' + wsRegexChars + wsRegexChars + '*'); var trimEndRegexp = new RegExp(wsRegexChars + wsRegexChars + '*$'); var hasTrimWhitespaceBug = StringPrototype.trim && (ws.trim() || !zeroWidth.trim()); defineProperties(StringPrototype, { // http://blog.stevenlevithan.com/archives/faster-trim-javascript // http://perfectionkills.com/whitespace-deviations/ trim: function trim() { if (this === void 0 || this === null) { throw new TypeError("can't convert " + this + ' to object'); } return String(this).replace(trimBeginRegexp, '').replace(trimEndRegexp, ''); } }, hasTrimWhitespaceBug); // ECMA-262, 3rd B.2.3 // Not an ECMAScript standard, although ECMAScript 3rd Edition has a // non-normative section suggesting uniform semantics and it should be // normalized across all browsers // [bugfix, IE lt 9] IE < 9 substr() with negative value not working in IE var string_substr = StringPrototype.substr; var hasNegativeSubstrBug = ''.substr && '0b'.substr(-1) !== 'b'; defineProperties(StringPrototype, { substr: function substr(start, length) { return string_substr.call( this, start < 0 ? ((start = this.length + start) < 0 ? 0 : start) : start, length ); } }, hasNegativeSubstrBug); },{}],49:[function(require,module,exports){ 'use strict'; module.exports = [ // streaming transports require('./transport/websocket') , require('./transport/xhr-streaming') , require('./transport/xdr-streaming') , require('./transport/eventsource') , require('./transport/lib/iframe-wrap')(require('./transport/eventsource')) // polling transports , require('./transport/htmlfile') , require('./transport/lib/iframe-wrap')(require('./transport/htmlfile')) , require('./transport/xhr-polling') , require('./transport/xdr-polling') , require('./transport/lib/iframe-wrap')(require('./transport/xhr-polling')) , require('./transport/jsonp-polling') ]; },{"./transport/eventsource":53,"./transport/htmlfile":54,"./transport/jsonp-polling":56,"./transport/lib/iframe-wrap":59,"./transport/websocket":71,"./transport/xdr-polling":72,"./transport/xdr-streaming":73,"./transport/xhr-polling":74,"./transport/xhr-streaming":75}],50:[function(require,module,exports){ (function (process,global){ 'use strict'; var EventEmitter = require('events').EventEmitter , inherits = require('inherits') , utils = require('../../utils/event') , urlUtils = require('../../utils/url') , XHR = global.XMLHttpRequest ; var debug = function() {}; if (process.env.NODE_ENV !== 'production') { debug = require('debug')('sockjs-client:browser:xhr'); } function AbstractXHRObject(method, url, payload, opts) { debug(method, url); var self = this; EventEmitter.call(this); setTimeout(function () { self._start(method, url, payload, opts); }, 0); } inherits(AbstractXHRObject, EventEmitter); AbstractXHRObject.prototype._start = function(method, url, payload, opts) { var self = this; try { this.xhr = new XHR(); } catch (x) { // intentionally empty } if (!this.xhr) { debug('no xhr'); this.emit('finish', 0, 'no xhr support'); this._cleanup(); return; } // several browsers cache POSTs url = urlUtils.addQuery(url, 't=' + (+new Date())); // Explorer tends to keep connection open, even after the // tab gets closed: http://bugs.jquery.com/ticket/5280 this.unloadRef = utils.unloadAdd(function() { debug('unload cleanup'); self._cleanup(true); }); try { this.xhr.open(method, url, true); if (this.timeout && 'timeout' in this.xhr) { this.xhr.timeout = this.timeout; this.xhr.ontimeout = function() { debug('xhr timeout'); self.emit('finish', 0, ''); self._cleanup(false); }; } } catch (e) { debug('exception', e); // IE raises an exception on wrong port. this.emit('finish', 0, ''); this._cleanup(false); return; } if ((!opts || !opts.noCredentials) && AbstractXHRObject.supportsCORS) { debug('withCredentials'); // Mozilla docs says https://developer.mozilla.org/en/XMLHttpRequest : // "This never affects same-site requests." this.xhr.withCredentials = 'true'; } if (opts && opts.headers) { for (var key in opts.headers) { this.xhr.setRequestHeader(key, opts.headers[key]); } } this.xhr.onreadystatechange = function() { if (self.xhr) { var x = self.xhr; var text, status; debug('readyState', x.readyState); switch (x.readyState) { case 3: // IE doesn't like peeking into responseText or status // on Microsoft.XMLHTTP and readystate=3 try { status = x.status; text = x.responseText; } catch (e) { // intentionally empty } debug('status', status); // IE returns 1223 for 204: http://bugs.jquery.com/ticket/1450 if (status === 1223) { status = 204; } // IE does return readystate == 3 for 404 answers. if (status === 200 && text && text.length > 0) { debug('chunk'); self.emit('chunk', status, text); } break; case 4: status = x.status; debug('status', status); // IE returns 1223 for 204: http://bugs.jquery.com/ticket/1450 if (status === 1223) { status = 204; } // IE returns this for a bad port // http://msdn.microsoft.com/en-us/library/windows/desktop/aa383770(v=vs.85).aspx if (status === 12005 || status === 12029) { status = 0; } debug('finish', status, x.responseText); self.emit('finish', status, x.responseText); self._cleanup(false); break; } } }; try { self.xhr.send(payload); } catch (e) { self.emit('finish', 0, ''); self._cleanup(false); } }; AbstractXHRObject.prototype._cleanup = function(abort) { debug('cleanup'); if (!this.xhr) { return; } this.removeAllListeners(); utils.unloadDel(this.unloadRef); // IE needs this field to be a function this.xhr.onreadystatechange = function() {}; if (this.xhr.ontimeout) { this.xhr.ontimeout = null; } if (abort) { try { this.xhr.abort(); } catch (x) { // intentionally empty } } this.unloadRef = this.xhr = null; }; AbstractXHRObject.prototype.close = function() { debug('close'); this._cleanup(true); }; AbstractXHRObject.enabled = !!XHR; // override XMLHttpRequest for IE6/7 // obfuscate to avoid firewalls var axo = ['Active'].concat('Object').join('X'); if (!AbstractXHRObject.enabled && (axo in global)) { debug('overriding xmlhttprequest'); XHR = function() { try { return new global[axo]('Microsoft.XMLHTTP'); } catch (e) { return null; } }; AbstractXHRObject.enabled = !!new XHR(); } var cors = false; try { cors = 'withCredentials' in new XHR(); } catch (ignored) { // intentionally empty } AbstractXHRObject.supportsCORS = cors; module.exports = AbstractXHRObject; }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) },{"../../utils/event":79,"../../utils/url":85,"_process":110,"debug":1,"events":36,"inherits":7}],51:[function(require,module,exports){ (function (global){ module.exports = global.EventSource; }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) },{}],52:[function(require,module,exports){ (function (global){ 'use strict'; var Driver = global.WebSocket || global.MozWebSocket; if (Driver) { module.exports = function WebSocketBrowserDriver(url) { return new Driver(url); }; } }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) },{}],53:[function(require,module,exports){ 'use strict'; var inherits = require('inherits') , AjaxBasedTransport = require('./lib/ajax-based') , EventSourceReceiver = require('./receiver/eventsource') , XHRCorsObject = require('./sender/xhr-cors') , EventSourceDriver = require('eventsource') ; function EventSourceTransport(transUrl) { if (!EventSourceTransport.enabled()) { throw new Error('Transport created when disabled'); } AjaxBasedTransport.call(this, transUrl, '/eventsource', EventSourceReceiver, XHRCorsObject); } inherits(EventSourceTransport, AjaxBasedTransport); EventSourceTransport.enabled = function() { return !!EventSourceDriver; }; EventSourceTransport.transportName = 'eventsource'; EventSourceTransport.roundTrips = 2; module.exports = EventSourceTransport; },{"./lib/ajax-based":57,"./receiver/eventsource":62,"./sender/xhr-cors":68,"eventsource":51,"inherits":7}],54:[function(require,module,exports){ 'use strict'; var inherits = require('inherits') , HtmlfileReceiver = require('./receiver/htmlfile') , XHRLocalObject = require('./sender/xhr-local') , AjaxBasedTransport = require('./lib/ajax-based') ; function HtmlFileTransport(transUrl) { if (!HtmlfileReceiver.enabled) { throw new Error('Transport created when disabled'); } AjaxBasedTransport.call(this, transUrl, '/htmlfile', HtmlfileReceiver, XHRLocalObject); } inherits(HtmlFileTransport, AjaxBasedTransport); HtmlFileTransport.enabled = function(info) { return HtmlfileReceiver.enabled && info.sameOrigin; }; HtmlFileTransport.transportName = 'htmlfile'; HtmlFileTransport.roundTrips = 2; module.exports = HtmlFileTransport; },{"./lib/ajax-based":57,"./receiver/htmlfile":63,"./sender/xhr-local":70,"inherits":7}],55:[function(require,module,exports){ (function (process){ 'use strict'; // Few cool transports do work only for same-origin. In order to make // them work cross-domain we shall use iframe, served from the // remote domain. New browsers have capabilities to communicate with // cross domain iframe using postMessage(). In IE it was implemented // from IE 8+, but of course, IE got some details wrong: // http://msdn.microsoft.com/en-us/library/cc197015(v=VS.85).aspx // http://stevesouders.com/misc/test-postmessage.php var inherits = require('inherits') , JSON3 = require('json3') , EventEmitter = require('events').EventEmitter , version = require('../version') , urlUtils = require('../utils/url') , iframeUtils = require('../utils/iframe') , eventUtils = require('../utils/event') , random = require('../utils/random') ; var debug = function() {}; if (process.env.NODE_ENV !== 'production') { debug = require('debug')('sockjs-client:transport:iframe'); } function IframeTransport(transport, transUrl, baseUrl) { if (!IframeTransport.enabled()) { throw new Error('Transport created when disabled'); } EventEmitter.call(this); var self = this; this.origin = urlUtils.getOrigin(baseUrl); this.baseUrl = baseUrl; this.transUrl = transUrl; this.transport = transport; this.windowId = random.string(8); var iframeUrl = urlUtils.addPath(baseUrl, '/iframe.html') + '#' + this.windowId; debug(transport, transUrl, iframeUrl); this.iframeObj = iframeUtils.createIframe(iframeUrl, function(r) { debug('err callback'); self.emit('close', 1006, 'Unable to load an iframe (' + r + ')'); self.close(); }); this.onmessageCallback = this._message.bind(this); eventUtils.attachEvent('message', this.onmessageCallback); } inherits(IframeTransport, EventEmitter); IframeTransport.prototype.close = function() { debug('close'); this.removeAllListeners(); if (this.iframeObj) { eventUtils.detachEvent('message', this.onmessageCallback); try { // When the iframe is not loaded, IE raises an exception // on 'contentWindow'. this.postMessage('c'); } catch (x) { // intentionally empty } this.iframeObj.cleanup(); this.iframeObj = null; this.onmessageCallback = this.iframeObj = null; } }; IframeTransport.prototype._message = function(e) { debug('message', e.data); if (!urlUtils.isOriginEqual(e.origin, this.origin)) { debug('not same origin', e.origin, this.origin); return; } var iframeMessage; try { iframeMessage = JSON3.parse(e.data); } catch (ignored) { debug('bad json', e.data); return; } if (iframeMessage.windowId !== this.windowId) { debug('mismatched window id', iframeMessage.windowId, this.windowId); return; } switch (iframeMessage.type) { case 's': this.iframeObj.loaded(); // window global dependency this.postMessage('s', JSON3.stringify([ version , this.transport , this.transUrl , this.baseUrl ])); break; case 't': this.emit('message', iframeMessage.data); break; case 'c': var cdata; try { cdata = JSON3.parse(iframeMessage.data); } catch (ignored) { debug('bad json', iframeMessage.data); return; } this.emit('close', cdata[0], cdata[1]); this.close(); break; } }; IframeTransport.prototype.postMessage = function(type, data) { debug('postMessage', type, data); this.iframeObj.post(JSON3.stringify({ windowId: this.windowId , type: type , data: data || '' }), this.origin); }; IframeTransport.prototype.send = function(message) { debug('send', message); this.postMessage('m', message); }; IframeTransport.enabled = function() { return iframeUtils.iframeEnabled; }; IframeTransport.transportName = 'iframe'; IframeTransport.roundTrips = 2; module.exports = IframeTransport; }).call(this,require('_process')) },{"../utils/event":79,"../utils/iframe":80,"../utils/random":83,"../utils/url":85,"../version":86,"_process":110,"debug":1,"events":36,"inherits":7,"json3":8}],56:[function(require,module,exports){ (function (global){ 'use strict'; // The simplest and most robust transport, using the well-know cross // domain hack - JSONP. This transport is quite inefficient - one // message could use up to one http request. But at least it works almost // everywhere. // Known limitations: // o you will get a spinning cursor // o for Konqueror a dumb timer is needed to detect errors var inherits = require('inherits') , SenderReceiver = require('./lib/sender-receiver') , JsonpReceiver = require('./receiver/jsonp') , jsonpSender = require('./sender/jsonp') ; function JsonPTransport(transUrl) { if (!JsonPTransport.enabled()) { throw new Error('Transport created when disabled'); } SenderReceiver.call(this, transUrl, '/jsonp', jsonpSender, JsonpReceiver); } inherits(JsonPTransport, SenderReceiver); JsonPTransport.enabled = function() { return !!global.document; }; JsonPTransport.transportName = 'jsonp-polling'; JsonPTransport.roundTrips = 1; JsonPTransport.needBody = true; module.exports = JsonPTransport; }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) },{"./lib/sender-receiver":61,"./receiver/jsonp":64,"./sender/jsonp":66,"inherits":7}],57:[function(require,module,exports){ (function (process){ 'use strict'; var inherits = require('inherits') , urlUtils = require('../../utils/url') , SenderReceiver = require('./sender-receiver') ; var debug = function() {}; if (process.env.NODE_ENV !== 'production') { debug = require('debug')('sockjs-client:ajax-based'); } function createAjaxSender(AjaxObject) { return function(url, payload, callback) { debug('create ajax sender', url, payload); var opt = {}; if (typeof payload === 'string') { opt.headers = {'Content-type': 'text/plain'}; } var ajaxUrl = urlUtils.addPath(url, '/xhr_send'); var xo = new AjaxObject('POST', ajaxUrl, payload, opt); xo.once('finish', function(status) { debug('finish', status); xo = null; if (status !== 200 && status !== 204) { return callback(new Error('http status ' + status)); } callback(); }); return function() { debug('abort'); xo.close(); xo = null; var err = new Error('Aborted'); err.code = 1000; callback(err); }; }; } function AjaxBasedTransport(transUrl, urlSuffix, Receiver, AjaxObject) { SenderReceiver.call(this, transUrl, urlSuffix, createAjaxSender(AjaxObject), Receiver, AjaxObject); } inherits(AjaxBasedTransport, SenderReceiver); module.exports = AjaxBasedTransport; }).call(this,require('_process')) },{"../../utils/url":85,"./sender-receiver":61,"_process":110,"debug":1,"inherits":7}],58:[function(require,module,exports){ (function (process){ 'use strict'; var inherits = require('inherits') , EventEmitter = require('events').EventEmitter ; var debug = function() {}; if (process.env.NODE_ENV !== 'production') { debug = require('debug')('sockjs-client:buffered-sender'); } function BufferedSender(url, sender) { debug(url); EventEmitter.call(this); this.sendBuffer = []; this.sender = sender; this.url = url; } inherits(BufferedSender, EventEmitter); BufferedSender.prototype.send = function(message) { debug('send', message); this.sendBuffer.push(message); if (!this.sendStop) { this.sendSchedule(); } }; // For polling transports in a situation when in the message callback, // new message is being send. If the sending connection was started // before receiving one, it is possible to saturate the network and // timeout due to the lack of receiving socket. To avoid that we delay // sending messages by some small time, in order to let receiving // connection be started beforehand. This is only a halfmeasure and // does not fix the big problem, but it does make the tests go more // stable on slow networks. BufferedSender.prototype.sendScheduleWait = function() { debug('sendScheduleWait'); var self = this; var tref; this.sendStop = function() { debug('sendStop'); self.sendStop = null; clearTimeout(tref); }; tref = setTimeout(function() { debug('timeout'); self.sendStop = null; self.sendSchedule(); }, 25); }; BufferedSender.prototype.sendSchedule = function() { debug('sendSchedule', this.sendBuffer.length); var self = this; if (this.sendBuffer.length > 0) { var payload = '[' + this.sendBuffer.join(',') + ']'; this.sendStop = this.sender(this.url, payload, function(err) { self.sendStop = null; if (err) { debug('error', err); self.emit('close', err.code || 1006, 'Sending error: ' + err); self._cleanup(); } else { self.sendScheduleWait(); } }); this.sendBuffer = []; } }; BufferedSender.prototype._cleanup = function() { debug('_cleanup'); this.removeAllListeners(); }; BufferedSender.prototype.stop = function() { debug('stop'); this._cleanup(); if (this.sendStop) { this.sendStop(); this.sendStop = null; } }; module.exports = BufferedSender; }).call(this,require('_process')) },{"_process":110,"debug":1,"events":36,"inherits":7}],59:[function(require,module,exports){ (function (global){ 'use strict'; var inherits = require('inherits') , IframeTransport = require('../iframe') , objectUtils = require('../../utils/object') ; module.exports = function(transport) { function IframeWrapTransport(transUrl, baseUrl) { IframeTransport.call(this, transport.transportName, transUrl, baseUrl); } inherits(IframeWrapTransport, IframeTransport); IframeWrapTransport.enabled = function(url, info) { if (!global.document) { return false; } var iframeInfo = objectUtils.extend({}, info); iframeInfo.sameOrigin = true; return transport.enabled(iframeInfo) && IframeTransport.enabled(); }; IframeWrapTransport.transportName = 'iframe-' + transport.transportName; IframeWrapTransport.needBody = true; IframeWrapTransport.roundTrips = IframeTransport.roundTrips + transport.roundTrips - 1; // html, javascript (2) + transport - no CORS (1) IframeWrapTransport.facadeTransport = transport; return IframeWrapTransport; }; }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) },{"../../utils/object":82,"../iframe":55,"inherits":7}],60:[function(require,module,exports){ (function (process){ 'use strict'; var inherits = require('inherits') , EventEmitter = require('events').EventEmitter ; var debug = function() {}; if (process.env.NODE_ENV !== 'production') { debug = require('debug')('sockjs-client:polling'); } function Polling(Receiver, receiveUrl, AjaxObject) { debug(receiveUrl); EventEmitter.call(this); this.Receiver = Receiver; this.receiveUrl = receiveUrl; this.AjaxObject = AjaxObject; this._scheduleReceiver(); } inherits(Polling, EventEmitter); Polling.prototype._scheduleReceiver = function() { debug('_scheduleReceiver'); var self = this; var poll = this.poll = new this.Receiver(this.receiveUrl, this.AjaxObject); poll.on('message', function(msg) { debug('message', msg); self.emit('message', msg); }); poll.once('close', function(code, reason) { debug('close', code, reason, self.pollIsClosing); self.poll = poll = null; if (!self.pollIsClosing) { if (reason === 'network') { self._scheduleReceiver(); } else { self.emit('close', code || 1006, reason); self.removeAllListeners(); } } }); }; Polling.prototype.abort = function() { debug('abort'); this.removeAllListeners(); this.pollIsClosing = true; if (this.poll) { this.poll.abort(); } }; module.exports = Polling; }).call(this,require('_process')) },{"_process":110,"debug":1,"events":36,"inherits":7}],61:[function(require,module,exports){ (function (process){ 'use strict'; var inherits = require('inherits') , urlUtils = require('../../utils/url') , BufferedSender = require('./buffered-sender') , Polling = require('./polling') ; var debug = function() {}; if (process.env.NODE_ENV !== 'production') { debug = require('debug')('sockjs-client:sender-receiver'); } function SenderReceiver(transUrl, urlSuffix, senderFunc, Receiver, AjaxObject) { var pollUrl = urlUtils.addPath(transUrl, urlSuffix); debug(pollUrl); var self = this; BufferedSender.call(this, transUrl, senderFunc); this.poll = new Polling(Receiver, pollUrl, AjaxObject); this.poll.on('message', function(msg) { debug('poll message', msg); self.emit('message', msg); }); this.poll.once('close', function(code, reason) { debug('poll close', code, reason); self.poll = null; self.emit('close', code, reason); self.close(); }); } inherits(SenderReceiver, BufferedSender); SenderReceiver.prototype.close = function() { debug('close'); this.removeAllListeners(); if (this.poll) { this.poll.abort(); this.poll = null; } this.stop(); }; module.exports = SenderReceiver; }).call(this,require('_process')) },{"../../utils/url":85,"./buffered-sender":58,"./polling":60,"_process":110,"debug":1,"inherits":7}],62:[function(require,module,exports){ (function (process){ 'use strict'; var inherits = require('inherits') , EventEmitter = require('events').EventEmitter , EventSourceDriver = require('eventsource') ; var debug = function() {}; if (process.env.NODE_ENV !== 'production') { debug = require('debug')('sockjs-client:receiver:eventsource'); } function EventSourceReceiver(url) { debug(url); EventEmitter.call(this); var self = this; var es = this.es = new EventSourceDriver(url); es.onmessage = function(e) { debug('message', e.data); self.emit('message', decodeURI(e.data)); }; es.onerror = function(e) { debug('error', es.readyState, e); // ES on reconnection has readyState = 0 or 1. // on network error it's CLOSED = 2 var reason = (es.readyState !== 2 ? 'network' : 'permanent'); self._cleanup(); self._close(reason); }; } inherits(EventSourceReceiver, EventEmitter); EventSourceReceiver.prototype.abort = function() { debug('abort'); this._cleanup(); this._close('user'); }; EventSourceReceiver.prototype._cleanup = function() { debug('cleanup'); var es = this.es; if (es) { es.onmessage = es.onerror = null; es.close(); this.es = null; } }; EventSourceReceiver.prototype._close = function(reason) { debug('close', reason); var self = this; // Safari and chrome < 15 crash if we close window before // waiting for ES cleanup. See: // https://code.google.com/p/chromium/issues/detail?id=89155 setTimeout(function() { self.emit('close', null, reason); self.removeAllListeners(); }, 200); }; module.exports = EventSourceReceiver; }).call(this,require('_process')) },{"_process":110,"debug":1,"events":36,"eventsource":51,"inherits":7}],63:[function(require,module,exports){ (function (process,global){ 'use strict'; var inherits = require('inherits') , iframeUtils = require('../../utils/iframe') , urlUtils = require('../../utils/url') , EventEmitter = require('events').EventEmitter , random = require('../../utils/random') ; var debug = function() {}; if (process.env.NODE_ENV !== 'production') { debug = require('debug')('sockjs-client:receiver:htmlfile'); } function HtmlfileReceiver(url) { debug(url); EventEmitter.call(this); var self = this; iframeUtils.polluteGlobalNamespace(); this.id = 'a' + random.string(6); url = urlUtils.addQuery(url, 'c=' + decodeURIComponent(iframeUtils.WPrefix + '.' + this.id)); debug('using htmlfile', HtmlfileReceiver.htmlfileEnabled); var constructFunc = HtmlfileReceiver.htmlfileEnabled ? iframeUtils.createHtmlfile : iframeUtils.createIframe; global[iframeUtils.WPrefix][this.id] = { start: function() { debug('start'); self.iframeObj.loaded(); } , message: function(data) { debug('message', data); self.emit('message', data); } , stop: function() { debug('stop'); self._cleanup(); self._close('network'); } }; this.iframeObj = constructFunc(url, function() { debug('callback'); self._cleanup(); self._close('permanent'); }); } inherits(HtmlfileReceiver, EventEmitter); HtmlfileReceiver.prototype.abort = function() { debug('abort'); this._cleanup(); this._close('user'); }; HtmlfileReceiver.prototype._cleanup = function() { debug('_cleanup'); if (this.iframeObj) { this.iframeObj.cleanup(); this.iframeObj = null; } delete global[iframeUtils.WPrefix][this.id]; }; HtmlfileReceiver.prototype._close = function(reason) { debug('_close', reason); this.emit('close', null, reason); this.removeAllListeners(); }; HtmlfileReceiver.htmlfileEnabled = false; // obfuscate to avoid firewalls var axo = ['Active'].concat('Object').join('X'); if (axo in global) { try { HtmlfileReceiver.htmlfileEnabled = !!new global[axo]('htmlfile'); } catch (x) { // intentionally empty } } HtmlfileReceiver.enabled = HtmlfileReceiver.htmlfileEnabled || iframeUtils.iframeEnabled; module.exports = HtmlfileReceiver; }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) },{"../../utils/iframe":80,"../../utils/random":83,"../../utils/url":85,"_process":110,"debug":1,"events":36,"inherits":7}],64:[function(require,module,exports){ (function (process,global){ 'use strict'; var utils = require('../../utils/iframe') , random = require('../../utils/random') , browser = require('../../utils/browser') , urlUtils = require('../../utils/url') , inherits = require('inherits') , EventEmitter = require('events').EventEmitter ; var debug = function() {}; if (process.env.NODE_ENV !== 'production') { debug = require('debug')('sockjs-client:receiver:jsonp'); } function JsonpReceiver(url) { debug(url); var self = this; EventEmitter.call(this); utils.polluteGlobalNamespace(); this.id = 'a' + random.string(6); var urlWithId = urlUtils.addQuery(url, 'c=' + encodeURIComponent(utils.WPrefix + '.' + this.id)); global[utils.WPrefix][this.id] = this._callback.bind(this); this._createScript(urlWithId); // Fallback mostly for Konqueror - stupid timer, 35 seconds shall be plenty. this.timeoutId = setTimeout(function() { debug('timeout'); self._abort(new Error('JSONP script loaded abnormally (timeout)')); }, JsonpReceiver.timeout); } inherits(JsonpReceiver, EventEmitter); JsonpReceiver.prototype.abort = function() { debug('abort'); if (global[utils.WPrefix][this.id]) { var err = new Error('JSONP user aborted read'); err.code = 1000; this._abort(err); } }; JsonpReceiver.timeout = 35000; JsonpReceiver.scriptErrorTimeout = 1000; JsonpReceiver.prototype._callback = function(data) { debug('_callback', data); this._cleanup(); if (this.aborting) { return; } if (data) { debug('message', data); this.emit('message', data); } this.emit('close', null, 'network'); this.removeAllListeners(); }; JsonpReceiver.prototype._abort = function(err) { debug('_abort', err); this._cleanup(); this.aborting = true; this.emit('close', err.code, err.message); this.removeAllListeners(); }; JsonpReceiver.prototype._cleanup = function() { debug('_cleanup'); clearTimeout(this.timeoutId); if (this.script2) { this.script2.parentNode.removeChild(this.script2); this.script2 = null; } if (this.script) { var script = this.script; // Unfortunately, you can't really abort script loading of // the script. script.parentNode.removeChild(script); script.onreadystatechange = script.onerror = script.onload = script.onclick = null; this.script = null; } delete global[utils.WPrefix][this.id]; }; JsonpReceiver.prototype._scriptError = function() { debug('_scriptError'); var self = this; if (this.errorTimer) { return; } this.errorTimer = setTimeout(function() { if (!self.loadedOkay) { self._abort(new Error('JSONP script loaded abnormally (onerror)')); } }, JsonpReceiver.scriptErrorTimeout); }; JsonpReceiver.prototype._createScript = function(url) { debug('_createScript', url); var self = this; var script = this.script = global.document.createElement('script'); var script2; // Opera synchronous load trick. script.id = 'a' + random.string(8); script.src = url; script.type = 'text/javascript'; script.charset = 'UTF-8'; script.onerror = this._scriptError.bind(this); script.onload = function() { debug('onload'); self._abort(new Error('JSONP script loaded abnormally (onload)')); }; // IE9 fires 'error' event after onreadystatechange or before, in random order. // Use loadedOkay to determine if actually errored script.onreadystatechange = function() { debug('onreadystatechange', script.readyState); if (/loaded|closed/.test(script.readyState)) { if (script && script.htmlFor && script.onclick) { self.loadedOkay = true; try { // In IE, actually execute the script. script.onclick(); } catch (x) { // intentionally empty } } if (script) { self._abort(new Error('JSONP script loaded abnormally (onreadystatechange)')); } } }; // IE: event/htmlFor/onclick trick. // One can't rely on proper order for onreadystatechange. In order to // make sure, set a 'htmlFor' and 'event' properties, so that // script code will be installed as 'onclick' handler for the // script object. Later, onreadystatechange, manually execute this // code. FF and Chrome doesn't work with 'event' and 'htmlFor' // set. For reference see: // http://jaubourg.net/2010/07/loading-script-as-onclick-handler-of.html // Also, read on that about script ordering: // http://wiki.whatwg.org/wiki/Dynamic_Script_Execution_Order if (typeof script.async === 'undefined' && global.document.attachEvent) { // According to mozilla docs, in recent browsers script.async defaults // to 'true', so we may use it to detect a good browser: // https://developer.mozilla.org/en/HTML/Element/script if (!browser.isOpera()) { // Naively assume we're in IE try { script.htmlFor = script.id; script.event = 'onclick'; } catch (x) { // intentionally empty } script.async = true; } else { // Opera, second sync script hack script2 = this.script2 = global.document.createElement('script'); script2.text = "try{var a = document.getElementById('" + script.id + "'); if(a)a.onerror();}catch(x){};"; script.async = script2.async = false; } } if (typeof script.async !== 'undefined') { script.async = true; } var head = global.document.getElementsByTagName('head')[0]; head.insertBefore(script, head.firstChild); if (script2) { head.insertBefore(script2, head.firstChild); } }; module.exports = JsonpReceiver; }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) },{"../../utils/browser":77,"../../utils/iframe":80,"../../utils/random":83,"../../utils/url":85,"_process":110,"debug":1,"events":36,"inherits":7}],65:[function(require,module,exports){ (function (process){ 'use strict'; var inherits = require('inherits') , EventEmitter = require('events').EventEmitter ; var debug = function() {}; if (process.env.NODE_ENV !== 'production') { debug = require('debug')('sockjs-client:receiver:xhr'); } function XhrReceiver(url, AjaxObject) { debug(url); EventEmitter.call(this); var self = this; this.bufferPosition = 0; this.xo = new AjaxObject('POST', url, null); this.xo.on('chunk', this._chunkHandler.bind(this)); this.xo.once('finish', function(status, text) { debug('finish', status, text); self._chunkHandler(status, text); self.xo = null; var reason = status === 200 ? 'network' : 'permanent'; debug('close', reason); self.emit('close', null, reason); self._cleanup(); }); } inherits(XhrReceiver, EventEmitter); XhrReceiver.prototype._chunkHandler = function(status, text) { debug('_chunkHandler', status); if (status !== 200 || !text) { return; } for (var idx = -1; ; this.bufferPosition += idx + 1) { var buf = text.slice(this.bufferPosition); idx = buf.indexOf('\n'); if (idx === -1) { break; } var msg = buf.slice(0, idx); if (msg) { debug('message', msg); this.emit('message', msg); } } }; XhrReceiver.prototype._cleanup = function() { debug('_cleanup'); this.removeAllListeners(); }; XhrReceiver.prototype.abort = function() { debug('abort'); if (this.xo) { this.xo.close(); debug('close'); this.emit('close', null, 'user'); this.xo = null; } this._cleanup(); }; module.exports = XhrReceiver; }).call(this,require('_process')) },{"_process":110,"debug":1,"events":36,"inherits":7}],66:[function(require,module,exports){ (function (process,global){ 'use strict'; var random = require('../../utils/random') , urlUtils = require('../../utils/url') ; var debug = function() {}; if (process.env.NODE_ENV !== 'production') { debug = require('debug')('sockjs-client:sender:jsonp'); } var form, area; function createIframe(id) { debug('createIframe', id); try { // ie6 dynamic iframes with target="" support (thanks Chris Lambacher) return global.document.createElement('