traceablepeerconnection
Version:
Lowlevel RTCPeerConnection wrapper which allows tracing the API calls
1,601 lines (1,431 loc) • 99.6 kB
JavaScript
(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.PeerConnection = f()}})(function(){var define,module,exports;return (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<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
// based on https://github.com/ESTOS/strophe.jingle/
// adds wildemitter support
var util = require('util');
var adapter = require('webrtc-adapter'); // jshint ignore:line
var WildEmitter = require('wildemitter');
function dumpSDP(description) {
return {
type: description.type,
sdp: description.sdp
};
}
function dumpStream(stream) {
var info = {
label: stream.id,
};
if (stream.getAudioTracks().length) {
info.audio = stream.getAudioTracks().map(function (track) {
return track.id;
});
}
if (stream.getVideoTracks().length) {
info.video = stream.getVideoTracks().map(function (track) {
return track.id;
});
}
return info;
}
function TraceablePeerConnection(config, constraints) {
var self = this;
WildEmitter.call(this);
this.peerconnection = new window.RTCPeerConnection(config, constraints);
this.trace = function (what, info) {
self.emit('PeerConnectionTrace', {
time: new Date(),
type: what,
value: info || ""
});
};
this.onicecandidate = null;
this.peerconnection.onicecandidate = function (event) {
self.trace('onicecandidate', event.candidate);
if (self.onicecandidate !== null) {
self.onicecandidate(event);
}
};
this.onaddstream = null;
this.peerconnection.onaddstream = function (event) {
self.trace('onaddstream', dumpStream(event.stream));
if (self.onaddstream !== null) {
self.onaddstream(event);
}
};
this.onremovestream = null;
this.peerconnection.onremovestream = function (event) {
self.trace('onremovestream', dumpStream(event.stream));
if (self.onremovestream !== null) {
self.onremovestream(event);
}
};
this.onsignalingstatechange = null;
this.peerconnection.onsignalingstatechange = function (event) {
self.trace('onsignalingstatechange', self.signalingState);
if (self.onsignalingstatechange !== null) {
self.onsignalingstatechange(event);
}
};
this.oniceconnectionstatechange = null;
this.peerconnection.oniceconnectionstatechange = function (event) {
self.trace('oniceconnectionstatechange', self.iceConnectionState);
if (self.oniceconnectionstatechange !== null) {
self.oniceconnectionstatechange(event);
}
};
this.onnegotiationneeded = null;
this.peerconnection.onnegotiationneeded = function (event) {
self.trace('onnegotiationneeded');
if (self.onnegotiationneeded !== null) {
self.onnegotiationneeded(event);
}
};
self.ondatachannel = null;
this.peerconnection.ondatachannel = function (event) {
self.trace('ondatachannel', event);
if (self.ondatachannel !== null) {
self.ondatachannel(event);
}
};
this.getLocalStreams = this.peerconnection.getLocalStreams.bind(this.peerconnection);
this.getRemoteStreams = this.peerconnection.getRemoteStreams.bind(this.peerconnection);
}
util.inherits(TraceablePeerConnection, WildEmitter);
['signalingState', 'iceConnectionState', 'localDescription', 'remoteDescription'].forEach(function (prop) {
Object.defineProperty(TraceablePeerConnection.prototype, prop, {
get: function () {
return this.peerconnection[prop];
}
});
});
TraceablePeerConnection.prototype.addStream = function (stream) {
this.trace('addStream', dumpStream(stream));
this.peerconnection.addStream(stream);
};
TraceablePeerConnection.prototype.removeStream = function (stream) {
this.trace('removeStream', dumpStream(stream));
this.peerconnection.removeStream(stream);
};
TraceablePeerConnection.prototype.createDataChannel = function (label, opts) {
this.trace('createDataChannel', label, opts);
return this.peerconnection.createDataChannel(label, opts);
};
TraceablePeerConnection.prototype.setLocalDescription = function (description, successCallback, failureCallback) {
var self = this;
this.trace('setLocalDescription', dumpSDP(description));
this.peerconnection.setLocalDescription(description,
function () {
self.trace('setLocalDescriptionOnSuccess');
if (successCallback) successCallback();
},
function (err) {
self.trace('setLocalDescriptionOnFailure', err);
if (failureCallback) failureCallback(err);
}
);
};
TraceablePeerConnection.prototype.setRemoteDescription = function (description, successCallback, failureCallback) {
var self = this;
this.trace('setRemoteDescription', dumpSDP(description));
this.peerconnection.setRemoteDescription(description,
function () {
self.trace('setRemoteDescriptionOnSuccess');
if (successCallback) successCallback();
},
function (err) {
self.trace('setRemoteDescriptionOnFailure', err);
if (failureCallback) failureCallback(err);
}
);
};
TraceablePeerConnection.prototype.close = function () {
this.trace('stop');
if (this.peerconnection.signalingState != 'closed') {
this.peerconnection.close();
}
};
TraceablePeerConnection.prototype.createOffer = function (successCallback, failureCallback, constraints) {
var self = this;
this.trace('createOffer', constraints);
this.peerconnection.createOffer(
function (offer) {
self.trace('createOfferOnSuccess', dumpSDP(offer));
if (successCallback) successCallback(offer);
},
function (err) {
self.trace('createOfferOnFailure', err);
if (failureCallback) failureCallback(err);
},
constraints
);
};
TraceablePeerConnection.prototype.createAnswer = function (successCallback, failureCallback, constraints) {
var self = this;
this.trace('createAnswer', constraints);
this.peerconnection.createAnswer(
function (answer) {
self.trace('createAnswerOnSuccess', dumpSDP(answer));
if (successCallback) successCallback(answer);
},
function (err) {
self.trace('createAnswerOnFailure', err);
if (failureCallback) failureCallback(err);
},
constraints
);
};
TraceablePeerConnection.prototype.addIceCandidate = function (candidate, successCallback, failureCallback) {
var self = this;
this.trace('addIceCandidate', candidate);
this.peerconnection.addIceCandidate(candidate,
function () {
//self.trace('addIceCandidateOnSuccess');
if (successCallback) successCallback();
},
function (err) {
self.trace('addIceCandidateOnFailure', err);
if (failureCallback) failureCallback(err);
}
);
};
TraceablePeerConnection.prototype.getStats = function () {
this.peerconnection.getStats.apply(this.peerconnection, arguments);
};
module.exports = TraceablePeerConnection;
},{"util":5,"webrtc-adapter":6,"wildemitter":12}],2:[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
}
}
},{}],3:[function(require,module,exports){
// shim for using process in browser
var process = module.exports = {};
var queue = [];
var draining = false;
var currentQueue;
var queueIndex = -1;
function cleanUpNextTick() {
draining = false;
if (currentQueue.length) {
queue = currentQueue.concat(queue);
} else {
queueIndex = -1;
}
if (queue.length) {
drainQueue();
}
}
function drainQueue() {
if (draining) {
return;
}
var timeout = setTimeout(cleanUpNextTick);
draining = true;
var len = queue.length;
while(len) {
currentQueue = queue;
queue = [];
while (++queueIndex < len) {
if (currentQueue) {
currentQueue[queueIndex].run();
}
}
queueIndex = -1;
len = queue.length;
}
currentQueue = null;
draining = false;
clearTimeout(timeout);
}
process.nextTick = function (fun) {
var args = new Array(arguments.length - 1);
if (arguments.length > 1) {
for (var i = 1; i < arguments.length; i++) {
args[i - 1] = arguments[i];
}
}
queue.push(new Item(fun, args));
if (queue.length === 1 && !draining) {
setTimeout(drainQueue, 0);
}
};
// v8 likes predictible objects
function Item(fun, array) {
this.fun = fun;
this.array = array;
}
Item.prototype.run = function () {
this.fun.apply(null, this.array);
};
process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
process.version = ''; // empty string to avoid regexp issues
process.versions = {};
function noop() {}
process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;
process.binding = function (name) {
throw new Error('process.binding is not supported');
};
process.cwd = function () { return '/' };
process.chdir = function (dir) {
throw new Error('process.chdir is not supported');
};
process.umask = function() { return 0; };
},{}],4:[function(require,module,exports){
module.exports = function isBuffer(arg) {
return arg && typeof arg === 'object'
&& typeof arg.copy === 'function'
&& typeof arg.fill === 'function'
&& typeof arg.readUInt8 === 'function';
}
},{}],5:[function(require,module,exports){
(function (process,global){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
var formatRegExp = /%[sdj%]/g;
exports.format = function(f) {
if (!isString(f)) {
var objects = [];
for (var i = 0; i < arguments.length; i++) {
objects.push(inspect(arguments[i]));
}
return objects.join(' ');
}
var i = 1;
var args = arguments;
var len = args.length;
var str = String(f).replace(formatRegExp, function(x) {
if (x === '%%') return '%';
if (i >= len) return x;
switch (x) {
case '%s': return String(args[i++]);
case '%d': return Number(args[i++]);
case '%j':
try {
return JSON.stringify(args[i++]);
} catch (_) {
return '[Circular]';
}
default:
return x;
}
});
for (var x = args[i]; i < len; x = args[++i]) {
if (isNull(x) || !isObject(x)) {
str += ' ' + x;
} else {
str += ' ' + inspect(x);
}
}
return str;
};
// Mark that a method should not be used.
// Returns a modified function which warns once by default.
// If --no-deprecation is set, then it is a no-op.
exports.deprecate = function(fn, msg) {
// Allow for deprecating things in the process of starting up.
if (isUndefined(global.process)) {
return function() {
return exports.deprecate(fn, msg).apply(this, arguments);
};
}
if (process.noDeprecation === true) {
return fn;
}
var warned = false;
function deprecated() {
if (!warned) {
if (process.throwDeprecation) {
throw new Error(msg);
} else if (process.traceDeprecation) {
console.trace(msg);
} else {
console.error(msg);
}
warned = true;
}
return fn.apply(this, arguments);
}
return deprecated;
};
var debugs = {};
var debugEnviron;
exports.debuglog = function(set) {
if (isUndefined(debugEnviron))
debugEnviron = process.env.NODE_DEBUG || '';
set = set.toUpperCase();
if (!debugs[set]) {
if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) {
var pid = process.pid;
debugs[set] = function() {
var msg = exports.format.apply(exports, arguments);
console.error('%s %d: %s', set, pid, msg);
};
} else {
debugs[set] = function() {};
}
}
return debugs[set];
};
/**
* Echos the value of a value. Trys to print the value out
* in the best way possible given the different types.
*
* @param {Object} obj The object to print out.
* @param {Object} opts Optional options object that alters the output.
*/
/* legacy: obj, showHidden, depth, colors*/
function inspect(obj, opts) {
// default options
var ctx = {
seen: [],
stylize: stylizeNoColor
};
// legacy...
if (arguments.length >= 3) ctx.depth = arguments[2];
if (arguments.length >= 4) ctx.colors = arguments[3];
if (isBoolean(opts)) {
// legacy...
ctx.showHidden = opts;
} else if (opts) {
// got an "options" object
exports._extend(ctx, opts);
}
// set default options
if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
if (isUndefined(ctx.depth)) ctx.depth = 2;
if (isUndefined(ctx.colors)) ctx.colors = false;
if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
if (ctx.colors) ctx.stylize = stylizeWithColor;
return formatValue(ctx, obj, ctx.depth);
}
exports.inspect = inspect;
// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
inspect.colors = {
'bold' : [1, 22],
'italic' : [3, 23],
'underline' : [4, 24],
'inverse' : [7, 27],
'white' : [37, 39],
'grey' : [90, 39],
'black' : [30, 39],
'blue' : [34, 39],
'cyan' : [36, 39],
'green' : [32, 39],
'magenta' : [35, 39],
'red' : [31, 39],
'yellow' : [33, 39]
};
// Don't use 'blue' not visible on cmd.exe
inspect.styles = {
'special': 'cyan',
'number': 'yellow',
'boolean': 'yellow',
'undefined': 'grey',
'null': 'bold',
'string': 'green',
'date': 'magenta',
// "name": intentionally not styling
'regexp': 'red'
};
function stylizeWithColor(str, styleType) {
var style = inspect.styles[styleType];
if (style) {
return '\u001b[' + inspect.colors[style][0] + 'm' + str +
'\u001b[' + inspect.colors[style][1] + 'm';
} else {
return str;
}
}
function stylizeNoColor(str, styleType) {
return str;
}
function arrayToHash(array) {
var hash = {};
array.forEach(function(val, idx) {
hash[val] = true;
});
return hash;
}
function formatValue(ctx, value, recurseTimes) {
// Provide a hook for user-specified inspect functions.
// Check that value is an object with an inspect function on it
if (ctx.customInspect &&
value &&
isFunction(value.inspect) &&
// Filter out the util module, it's inspect function is special
value.inspect !== exports.inspect &&
// Also filter out any prototype objects using the circular check.
!(value.constructor && value.constructor.prototype === value)) {
var ret = value.inspect(recurseTimes, ctx);
if (!isString(ret)) {
ret = formatValue(ctx, ret, recurseTimes);
}
return ret;
}
// Primitive types cannot have properties
var primitive = formatPrimitive(ctx, value);
if (primitive) {
return primitive;
}
// Look up the keys of the object.
var keys = Object.keys(value);
var visibleKeys = arrayToHash(keys);
if (ctx.showHidden) {
keys = Object.getOwnPropertyNames(value);
}
// IE doesn't make error fields non-enumerable
// http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx
if (isError(value)
&& (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) {
return formatError(value);
}
// Some type of object without properties can be shortcutted.
if (keys.length === 0) {
if (isFunction(value)) {
var name = value.name ? ': ' + value.name : '';
return ctx.stylize('[Function' + name + ']', 'special');
}
if (isRegExp(value)) {
return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
}
if (isDate(value)) {
return ctx.stylize(Date.prototype.toString.call(value), 'date');
}
if (isError(value)) {
return formatError(value);
}
}
var base = '', array = false, braces = ['{', '}'];
// Make Array say that they are Array
if (isArray(value)) {
array = true;
braces = ['[', ']'];
}
// Make functions say that they are functions
if (isFunction(value)) {
var n = value.name ? ': ' + value.name : '';
base = ' [Function' + n + ']';
}
// Make RegExps say that they are RegExps
if (isRegExp(value)) {
base = ' ' + RegExp.prototype.toString.call(value);
}
// Make dates with properties first say the date
if (isDate(value)) {
base = ' ' + Date.prototype.toUTCString.call(value);
}
// Make error with message first say the error
if (isError(value)) {
base = ' ' + formatError(value);
}
if (keys.length === 0 && (!array || value.length == 0)) {
return braces[0] + base + braces[1];
}
if (recurseTimes < 0) {
if (isRegExp(value)) {
return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
} else {
return ctx.stylize('[Object]', 'special');
}
}
ctx.seen.push(value);
var output;
if (array) {
output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
} else {
output = keys.map(function(key) {
return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
});
}
ctx.seen.pop();
return reduceToSingleString(output, base, braces);
}
function formatPrimitive(ctx, value) {
if (isUndefined(value))
return ctx.stylize('undefined', 'undefined');
if (isString(value)) {
var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
.replace(/'/g, "\\'")
.replace(/\\"/g, '"') + '\'';
return ctx.stylize(simple, 'string');
}
if (isNumber(value))
return ctx.stylize('' + value, 'number');
if (isBoolean(value))
return ctx.stylize('' + value, 'boolean');
// For some reason typeof null is "object", so special case here.
if (isNull(value))
return ctx.stylize('null', 'null');
}
function formatError(value) {
return '[' + Error.prototype.toString.call(value) + ']';
}
function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
var output = [];
for (var i = 0, l = value.length; i < l; ++i) {
if (hasOwnProperty(value, String(i))) {
output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
String(i), true));
} else {
output.push('');
}
}
keys.forEach(function(key) {
if (!key.match(/^\d+$/)) {
output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
key, true));
}
});
return output;
}
function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
var name, str, desc;
desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
if (desc.get) {
if (desc.set) {
str = ctx.stylize('[Getter/Setter]', 'special');
} else {
str = ctx.stylize('[Getter]', 'special');
}
} else {
if (desc.set) {
str = ctx.stylize('[Setter]', 'special');
}
}
if (!hasOwnProperty(visibleKeys, key)) {
name = '[' + key + ']';
}
if (!str) {
if (ctx.seen.indexOf(desc.value) < 0) {
if (isNull(recurseTimes)) {
str = formatValue(ctx, desc.value, null);
} else {
str = formatValue(ctx, desc.value, recurseTimes - 1);
}
if (str.indexOf('\n') > -1) {
if (array) {
str = str.split('\n').map(function(line) {
return ' ' + line;
}).join('\n').substr(2);
} else {
str = '\n' + str.split('\n').map(function(line) {
return ' ' + line;
}).join('\n');
}
}
} else {
str = ctx.stylize('[Circular]', 'special');
}
}
if (isUndefined(name)) {
if (array && key.match(/^\d+$/)) {
return str;
}
name = JSON.stringify('' + key);
if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
name = name.substr(1, name.length - 2);
name = ctx.stylize(name, 'name');
} else {
name = name.replace(/'/g, "\\'")
.replace(/\\"/g, '"')
.replace(/(^"|"$)/g, "'");
name = ctx.stylize(name, 'string');
}
}
return name + ': ' + str;
}
function reduceToSingleString(output, base, braces) {
var numLinesEst = 0;
var length = output.reduce(function(prev, cur) {
numLinesEst++;
if (cur.indexOf('\n') >= 0) numLinesEst++;
return prev + cur.replace(/\u001b\[\d\d?m/g, '').length + 1;
}, 0);
if (length > 60) {
return braces[0] +
(base === '' ? '' : base + '\n ') +
' ' +
output.join(',\n ') +
' ' +
braces[1];
}
return braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
}
// NOTE: These type checking functions intentionally don't use `instanceof`
// because it is fragile and can be easily faked with `Object.create()`.
function isArray(ar) {
return Array.isArray(ar);
}
exports.isArray = isArray;
function isBoolean(arg) {
return typeof arg === 'boolean';
}
exports.isBoolean = isBoolean;
function isNull(arg) {
return arg === null;
}
exports.isNull = isNull;
function isNullOrUndefined(arg) {
return arg == null;
}
exports.isNullOrUndefined = isNullOrUndefined;
function isNumber(arg) {
return typeof arg === 'number';
}
exports.isNumber = isNumber;
function isString(arg) {
return typeof arg === 'string';
}
exports.isString = isString;
function isSymbol(arg) {
return typeof arg === 'symbol';
}
exports.isSymbol = isSymbol;
function isUndefined(arg) {
return arg === void 0;
}
exports.isUndefined = isUndefined;
function isRegExp(re) {
return isObject(re) && objectToString(re) === '[object RegExp]';
}
exports.isRegExp = isRegExp;
function isObject(arg) {
return typeof arg === 'object' && arg !== null;
}
exports.isObject = isObject;
function isDate(d) {
return isObject(d) && objectToString(d) === '[object Date]';
}
exports.isDate = isDate;
function isError(e) {
return isObject(e) &&
(objectToString(e) === '[object Error]' || e instanceof Error);
}
exports.isError = isError;
function isFunction(arg) {
return typeof arg === 'function';
}
exports.isFunction = isFunction;
function isPrimitive(arg) {
return arg === null ||
typeof arg === 'boolean' ||
typeof arg === 'number' ||
typeof arg === 'string' ||
typeof arg === 'symbol' || // ES6 symbol
typeof arg === 'undefined';
}
exports.isPrimitive = isPrimitive;
exports.isBuffer = require('./support/isBuffer');
function objectToString(o) {
return Object.prototype.toString.call(o);
}
function pad(n) {
return n < 10 ? '0' + n.toString(10) : n.toString(10);
}
var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
'Oct', 'Nov', 'Dec'];
// 26 Feb 16:19:34
function timestamp() {
var d = new Date();
var time = [pad(d.getHours()),
pad(d.getMinutes()),
pad(d.getSeconds())].join(':');
return [d.getDate(), months[d.getMonth()], time].join(' ');
}
// log is just a thin wrapper to console.log that prepends a timestamp
exports.log = function() {
console.log('%s - %s', timestamp(), exports.format.apply(exports, arguments));
};
/**
* Inherit the prototype methods from one constructor into another.
*
* The Function.prototype.inherits from lang.js rewritten as a standalone
* function (not on Function.prototype). NOTE: If this file is to be loaded
* during bootstrapping this function needs to be rewritten using some native
* functions as prototype setup using normal JavaScript does not work as
* expected during bootstrapping (see mirror.js in r114903).
*
* @param {function} ctor Constructor function which needs to inherit the
* prototype.
* @param {function} superCtor Constructor function to inherit prototype from.
*/
exports.inherits = require('inherits');
exports._extend = function(origin, add) {
// Don't do anything if add isn't an object
if (!add || !isObject(add)) return origin;
var keys = Object.keys(add);
var i = keys.length;
while (i--) {
origin[keys[i]] = add[keys[i]];
}
return origin;
};
function hasOwnProperty(obj, prop) {
return Object.prototype.hasOwnProperty.call(obj, prop);
}
}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./support/isBuffer":4,"_process":3,"inherits":2}],6:[function(require,module,exports){
/*
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree.
*/
'use strict';
// Shimming starts here.
(function() {
// Utils.
var logging = require('./utils').log;
var browserDetails = require('./utils').browserDetails;
// Export to the adapter global object visible in the browser.
module.exports.browserDetails = browserDetails;
module.exports.extractVersion = require('./utils').extractVersion;
module.exports.disableLog = require('./utils').disableLog;
// Uncomment if you do not want any logging at all including the switch
// statement below. Can also be turned off in the browser via
// adapter.disableLog(true) but then logging from the switch statement below
// will still appear.
//require('./utils').disableLog(true);
// Warn if version is not supported regardless of browser.
// Min version can be set per browser in utils.js
if (browserDetails.version < browserDetails.minVersion) {
logging('Browser: ' + browserDetails.browser + ' Version: ' +
browserDetails.version + ' <' + ' minimum supported version: ' +
browserDetails.minVersion + '\n some things might not work!');
}
// Browser shims.
var chromeShim = require('./chrome/chrome_shim') || null;
var edgeShim = require('./edge/edge_shim') || null;
var firefoxShim = require('./firefox/firefox_shim') || null;
// Shim browser if found.
switch (browserDetails.browser) {
case 'chrome':
if (!chromeShim) {
logging('Chrome shim is not included in this adapter release.');
return;
}
logging('Adapter.js shimming chrome!');
// Export to the adapter global object visible in the browser.
module.exports.browserShim = chromeShim;
chromeShim.shimGetUserMedia();
chromeShim.shimSourceObject();
chromeShim.shimPeerConnection();
chromeShim.shimOnTrack();
break;
case 'edge':
if (!edgeShim) {
logging('MS edge shim is not included in this adapter release.');
return;
}
logging('Adapter.js shimming edge!');
// Export to the adapter global object visible in the browser.
module.exports.browserShim = edgeShim;
edgeShim.shimPeerConnection();
break;
case 'firefox':
if (!firefoxShim) {
logging('Firefox shim is not included in this adapter release.');
return;
}
logging('Adapter.js shimming firefox!');
// Export to the adapter global object visible in the browser.
module.exports.browserShim = firefoxShim;
firefoxShim.shimGetUserMedia();
firefoxShim.shimSourceObject();
firefoxShim.shimPeerConnection();
firefoxShim.shimOnTrack();
break;
default:
logging('Unsupported browser!');
}
})();
},{"./chrome/chrome_shim":7,"./edge/edge_shim":9,"./firefox/firefox_shim":10,"./utils":11}],7:[function(require,module,exports){
/*
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree.
*/
'use strict';
var logging = require('../utils.js').log;
var browserDetails = require('../utils.js').browserDetails;
var chromeShim = {
shimOnTrack: function() {
if (typeof window === 'object' && window.RTCPeerConnection && !('ontrack' in
window.RTCPeerConnection.prototype)) {
Object.defineProperty(window.RTCPeerConnection.prototype, 'ontrack', {
get: function() { return this._ontrack; },
set: function(f) {
var self = this;
if (this._ontrack) {
this.removeEventListener('track', this._ontrack);
this.removeEventListener('addstream', this._ontrackpoly);
}
this.addEventListener('track', this._ontrack = f);
this.addEventListener('addstream', this._ontrackpoly = function(e) {
// onaddstream does not fire when a track is added to an existing stream.
// but stream.onaddtrack is implemented so we use that
e.stream.addEventListener('addtrack', function(te) {
var event = new Event('track');
event.track = te.track;
event.receiver = {track: te.track};
event.streams = [e.stream];
self.dispatchEvent(event);
});
e.stream.getTracks().forEach(function(track) {
var event = new Event('track');
event.track = track;
event.receiver = {track: track};
event.streams = [e.stream];
this.dispatchEvent(event);
}.bind(this));
}.bind(this));
}
});
}
},
shimSourceObject: function() {
if (typeof window === 'object') {
if (window.HTMLMediaElement &&
!('srcObject' in window.HTMLMediaElement.prototype)) {
// Shim the srcObject property, once, when HTMLMediaElement is found.
Object.defineProperty(window.HTMLMediaElement.prototype, 'srcObject', {
get: function() {
return this._srcObject;
},
set: function(stream) {
// Use _srcObject as a private property for this shim
this._srcObject = stream;
if (this.src) {
URL.revokeObjectURL(this.src);
}
this.src = URL.createObjectURL(stream);
// We need to recreate the blob url when a track is added or removed.
// Doing it manually since we want to avoid a recursion.
stream.addEventListener('addtrack', function() {
if (self.src) {
URL.revokeObjectURL(self.src);
}
self.src = URL.createObjectURL(stream);
});
stream.addEventListener('removetrack', function() {
if (self.src) {
URL.revokeObjectURL(self.src);
}
self.src = URL.createObjectURL(stream);
});
}
});
}
}
},
shimPeerConnection: function() {
// The RTCPeerConnection object.
window.RTCPeerConnection = function(pcConfig, pcConstraints) {
// Translate iceTransportPolicy to iceTransports,
// see https://code.google.com/p/webrtc/issues/detail?id=4869
logging('PeerConnection');
if (pcConfig && pcConfig.iceTransportPolicy) {
pcConfig.iceTransports = pcConfig.iceTransportPolicy;
}
var pc = new webkitRTCPeerConnection(pcConfig, pcConstraints); // jscs:ignore requireCapitalizedConstructors
var origGetStats = pc.getStats.bind(pc);
pc.getStats = function(selector, successCallback, errorCallback) { // jshint ignore: line
var self = this;
var args = arguments;
// If selector is a function then we are in the old style stats so just
// pass back the original getStats format to avoid breaking old users.
if (arguments.length > 0 && typeof selector === 'function') {
return origGetStats(selector, successCallback);
}
var fixChromeStats_ = function(response) {
var standardReport = {};
var reports = response.result();
reports.forEach(function(report) {
var standardStats = {
id: report.id,
timestamp: report.timestamp,
type: report.type
};
report.names().forEach(function(name) {
standardStats[name] = report.stat(name);
});
standardReport[standardStats.id] = standardStats;
});
return standardReport;
};
if (arguments.length >= 2) {
var successCallbackWrapper_ = function(response) {
args[1](fixChromeStats_(response));
};
return origGetStats.apply(this, [successCallbackWrapper_, arguments[0]]);
}
// promise-support
return new Promise(function(resolve, reject) {
if (args.length === 1 && selector === null) {
origGetStats.apply(self, [
function(response) {
resolve.apply(null, [fixChromeStats_(response)]);
}, reject]);
} else {
origGetStats.apply(self, [resolve, reject]);
}
});
};
return pc;
};
window.RTCPeerConnection.prototype = webkitRTCPeerConnection.prototype;
// wrap static methods. Currently just generateCertificate.
if (webkitRTCPeerConnection.generateCertificate) {
Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
get: function() {
if (arguments.length) {
return webkitRTCPeerConnection.generateCertificate.apply(null,
arguments);
} else {
return webkitRTCPeerConnection.generateCertificate;
}
}
});
}
// add promise support
['createOffer', 'createAnswer'].forEach(function(method) {
var nativeMethod = webkitRTCPeerConnection.prototype[method];
webkitRTCPeerConnection.prototype[method] = function() {
var self = this;
if (arguments.length < 1 || (arguments.length === 1 &&
typeof(arguments[0]) === 'object')) {
var opts = arguments.length === 1 ? arguments[0] : undefined;
return new Promise(function(resolve, reject) {
nativeMethod.apply(self, [resolve, reject, opts]);
});
} else {
return nativeMethod.apply(this, arguments);
}
};
});
['setLocalDescription', 'setRemoteDescription',
'addIceCandidate'].forEach(function(method) {
var nativeMethod = webkitRTCPeerConnection.prototype[method];
webkitRTCPeerConnection.prototype[method] = function() {
var args = arguments;
var self = this;
return new Promise(function(resolve, reject) {
nativeMethod.apply(self, [args[0],
function() {
resolve();
if (args.length >= 2) {
args[1].apply(null, []);
}
},
function(err) {
reject(err);
if (args.length >= 3) {
args[2].apply(null, [err]);
}
}]
);
});
};
});
},
shimGetUserMedia: function() {
var constraintsToChrome_ = function(c) {
if (typeof c !== 'object' || c.mandatory || c.optional) {
return c;
}
var cc = {};
Object.keys(c).forEach(function(key) {
if (key === 'require' || key === 'advanced' || key === 'mediaSource') {
return;
}
var r = (typeof c[key] === 'object') ? c[key] : {ideal: c[key]};
if (r.exact !== undefined && typeof r.exact === 'number') {
r.min = r.max = r.exact;
}
var oldname_ = function(prefix, name) {
if (prefix) {
return prefix + name.charAt(0).toUpperCase() + name.slice(1);
}
return (name === 'deviceId') ? 'sourceId' : name;
};
if (r.ideal !== undefined) {
cc.optional = cc.optional || [];
var oc = {};
if (typeof r.ideal === 'number') {
oc[oldname_('min', key)] = r.ideal;
cc.optional.push(oc);
oc = {};
oc[oldname_('max', key)] = r.ideal;
cc.optional.push(oc);
} else {
oc[oldname_('', key)] = r.ideal;
cc.optional.push(oc);
}
}
if (r.exact !== undefined && typeof r.exact !== 'number') {
cc.mandatory = cc.mandatory || {};
cc.mandatory[oldname_('', key)] = r.exact;
} else {
['min', 'max'].forEach(function(mix) {
if (r[mix] !== undefined) {
cc.mandatory = cc.mandatory || {};
cc.mandatory[oldname_(mix, key)] = r[mix];
}
});
}
});
if (c.advanced) {
cc.optional = (cc.optional || []).concat(c.advanced);
}
return cc;
};
var getUserMedia_ = function(constraints, onSuccess, onError) {
if (constraints.audio) {
constraints.audio = constraintsToChrome_(constraints.audio);
}
if (constraints.video) {
constraints.video = constraintsToChrome_(constraints.video);
}
logging('chrome: ' + JSON.stringify(constraints));
return navigator.webkitGetUserMedia(constraints, onSuccess, onError);
};
navigator.getUserMedia = getUserMedia_;
// Returns the result of getUserMedia as a Promise.
var getUserMediaPromise_ = function(constraints) {
return new Promise(function(resolve, reject) {
navigator.getUserMedia(constraints, resolve, reject);
});
}
if (!navigator.mediaDevices) {
navigator.mediaDevices = {getUserMedia: getUserMediaPromise_,
enumerateDevices: function() {
return new Promise(function(resolve) {
var kinds = {audio: 'audioinput', video: 'videoinput'};
return MediaStreamTrack.getSources(function(devices) {
resolve(devices.map(function(device) {
return {label: device.label,
kind: kinds[device.kind],
deviceId: device.id,
groupId: ''};
}));
});
});
}};
}
// A shim for getUserMedia method on the mediaDevices object.
// TODO(KaptenJansson) remove once implemented in Chrome stable.
if (!navigator.mediaDevices.getUserMedia) {
navigator.mediaDevices.getUserMedia = function(constraints) {
return getUserMediaPromise_(constraints);
};
} else {
// Even though Chrome 45 has navigator.mediaDevices and a getUserMedia
// function which returns a Promise, it does not accept spec-style
// constraints.
var origGetUserMedia = navigator.mediaDevices.getUserMedia.
bind(navigator.mediaDevices);
navigator.mediaDevices.getUserMedia = function(c) {
if (c) {
logging('spec: ' + JSON.stringify(c)); // whitespace for alignment
c.audio = constraintsToChrome_(c.audio);
c.video = constraintsToChrome_(c.video);
logging('chrome: ' + JSON.stringify(c));
}
return origGetUserMedia(c);
}.bind(this);
}
// Dummy devicechange event methods.
// TODO(KaptenJansson) remove once implemented in Chrome stable.
if (typeof navigator.mediaDevices.addEventListener === 'undefined') {
navigator.mediaDevices.addEventListener = function() {
logging('Dummy mediaDevices.addEventListener called.');
};
}
if (typeof navigator.mediaDevices.removeEventListener === 'undefined') {
navigator.mediaDevices.removeEventListener = function() {
logging('Dummy mediaDevices.removeEventListener called.');
};
}
},
// Attach a media stream to an element.
attachMediaStream: function(element, stream) {
logging('DEPRECATED, attachMediaStream will soon be removed.');
if (browserDetails.version >= 43) {
element.srcObject = stream;
} else if (typeof element.src !== 'undefined') {
element.src = URL.createObjectURL(stream);
} else {
logging('Error attaching stream to element.');
}
},
reattachMediaStream: function(to, from) {
logging('DEPRECATED, reattachMediaStream will soon be removed.');
if (browserDetails.version >= 43) {
to.srcObject = from.srcObject;
} else {
to.src = from.src;
}
}
}
// Expose public methods.
module.exports = {
shimOnTrack: chromeShim.shimOnTrack,
shimSourceObject: chromeShim.shimSourceObject,
shimPeerConnection: chromeShim.shimPeerConnection,
shimGetUserMedia: chromeShim.shimGetUserMedia,
attachMediaStream: chromeShim.attachMediaStream,
reattachMediaStream: chromeShim.reattachMediaStream
};
},{"../utils.js":11}],8:[function(require,module,exports){
/*
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree.
*/
'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('\r\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
parsed.numChannels = parts.length === 3 ? parseInt(parts[2], 10) : 1; // was: channels
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 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.writeFtmp = function(codec) {
var line = '';
var pt = codec.payloadType;
if (codec.preferredPayloadType !== undefined) {
pt = codec.preferredPayloadType;
}
if (codec.parameters && 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 +
'\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: line.substr(7, sp - 7),
};
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);
lines = lines.concat(SDPUtils.splitLines(sessionpart)); // Search in session part, too.
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: f