webrtc-adapter
Version:
A shim to insulate apps from WebRTC spec changes and browser prefix differences
1,128 lines (1,096 loc) • 132 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.adapter = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[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.
*/
/* eslint-env node */
'use strict';
var _adapter_factory = require("./adapter_factory.js");
var adapter = (0, _adapter_factory.adapterFactory)({
window: typeof window === 'undefined' ? undefined : window
});
module.exports = adapter; // this is the difference from adapter_core.
},{"./adapter_factory.js":2}],2:[function(require,module,exports){
"use strict";
function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.adapterFactory = adapterFactory;
var utils = _interopRequireWildcard(require("./utils"));
var chromeShim = _interopRequireWildcard(require("./chrome/chrome_shim"));
var firefoxShim = _interopRequireWildcard(require("./firefox/firefox_shim"));
var safariShim = _interopRequireWildcard(require("./safari/safari_shim"));
var commonShim = _interopRequireWildcard(require("./common_shim"));
var sdp = _interopRequireWildcard(require("sdp"));
function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(e) { return e ? t : r; })(e); }
function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != _typeof(e) && "function" != typeof e) return { "default": e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && {}.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n["default"] = e, t && t.set(e, n), n; }
/*
* 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.
*/
// Browser shims.
// Shimming starts here.
function adapterFactory() {
var _ref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
window = _ref.window;
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {
shimChrome: true,
shimFirefox: true,
shimSafari: true
};
// Utils.
var logging = utils.log;
var browserDetails = utils.detectBrowser(window);
var adapter = {
browserDetails: browserDetails,
commonShim: commonShim,
extractVersion: utils.extractVersion,
disableLog: utils.disableLog,
disableWarnings: utils.disableWarnings,
// Expose sdp as a convenience. For production apps include directly.
sdp: sdp
};
// Shim browser if found.
switch (browserDetails.browser) {
case 'chrome':
if (!chromeShim || !chromeShim.shimPeerConnection || !options.shimChrome) {
logging('Chrome shim is not included in this adapter release.');
return adapter;
}
if (browserDetails.version === null) {
logging('Chrome shim can not determine version, not shimming.');
return adapter;
}
logging('adapter.js shimming chrome.');
// Export to the adapter global object visible in the browser.
adapter.browserShim = chromeShim;
// Must be called before shimPeerConnection.
commonShim.shimAddIceCandidateNullOrEmpty(window, browserDetails);
commonShim.shimParameterlessSetLocalDescription(window, browserDetails);
chromeShim.shimGetUserMedia(window, browserDetails);
chromeShim.shimMediaStream(window, browserDetails);
chromeShim.shimPeerConnection(window, browserDetails);
chromeShim.shimOnTrack(window, browserDetails);
chromeShim.shimAddTrackRemoveTrack(window, browserDetails);
chromeShim.shimGetSendersWithDtmf(window, browserDetails);
chromeShim.shimSenderReceiverGetStats(window, browserDetails);
chromeShim.fixNegotiationNeeded(window, browserDetails);
commonShim.shimRTCIceCandidate(window, browserDetails);
commonShim.shimRTCIceCandidateRelayProtocol(window, browserDetails);
commonShim.shimConnectionState(window, browserDetails);
commonShim.shimMaxMessageSize(window, browserDetails);
commonShim.shimSendThrowTypeError(window, browserDetails);
commonShim.removeExtmapAllowMixed(window, browserDetails);
break;
case 'firefox':
if (!firefoxShim || !firefoxShim.shimPeerConnection || !options.shimFirefox) {
logging('Firefox shim is not included in this adapter release.');
return adapter;
}
logging('adapter.js shimming firefox.');
// Export to the adapter global object visible in the browser.
adapter.browserShim = firefoxShim;
// Must be called before shimPeerConnection.
commonShim.shimAddIceCandidateNullOrEmpty(window, browserDetails);
commonShim.shimParameterlessSetLocalDescription(window, browserDetails);
firefoxShim.shimGetUserMedia(window, browserDetails);
firefoxShim.shimPeerConnection(window, browserDetails);
firefoxShim.shimOnTrack(window, browserDetails);
firefoxShim.shimRemoveStream(window, browserDetails);
firefoxShim.shimSenderGetStats(window, browserDetails);
firefoxShim.shimReceiverGetStats(window, browserDetails);
firefoxShim.shimRTCDataChannel(window, browserDetails);
firefoxShim.shimAddTransceiver(window, browserDetails);
firefoxShim.shimGetParameters(window, browserDetails);
firefoxShim.shimCreateOffer(window, browserDetails);
firefoxShim.shimCreateAnswer(window, browserDetails);
commonShim.shimRTCIceCandidate(window, browserDetails);
commonShim.shimConnectionState(window, browserDetails);
commonShim.shimMaxMessageSize(window, browserDetails);
commonShim.shimSendThrowTypeError(window, browserDetails);
break;
case 'safari':
if (!safariShim || !options.shimSafari) {
logging('Safari shim is not included in this adapter release.');
return adapter;
}
logging('adapter.js shimming safari.');
// Export to the adapter global object visible in the browser.
adapter.browserShim = safariShim;
// Must be called before shimCallbackAPI.
commonShim.shimAddIceCandidateNullOrEmpty(window, browserDetails);
commonShim.shimParameterlessSetLocalDescription(window, browserDetails);
safariShim.shimRTCIceServerUrls(window, browserDetails);
safariShim.shimCreateOfferLegacy(window, browserDetails);
safariShim.shimCallbacksAPI(window, browserDetails);
safariShim.shimLocalStreamsAPI(window, browserDetails);
safariShim.shimRemoteStreamsAPI(window, browserDetails);
safariShim.shimTrackEventTransceiver(window, browserDetails);
safariShim.shimGetUserMedia(window, browserDetails);
safariShim.shimAudioContext(window, browserDetails);
commonShim.shimRTCIceCandidate(window, browserDetails);
commonShim.shimRTCIceCandidateRelayProtocol(window, browserDetails);
commonShim.shimMaxMessageSize(window, browserDetails);
commonShim.shimSendThrowTypeError(window, browserDetails);
commonShim.removeExtmapAllowMixed(window, browserDetails);
break;
default:
logging('Unsupported browser!');
break;
}
return adapter;
}
},{"./chrome/chrome_shim":3,"./common_shim":5,"./firefox/firefox_shim":6,"./safari/safari_shim":9,"./utils":10,"sdp":11}],3:[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.
*/
/* eslint-env node */
'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.fixNegotiationNeeded = fixNegotiationNeeded;
exports.shimAddTrackRemoveTrack = shimAddTrackRemoveTrack;
exports.shimAddTrackRemoveTrackWithNative = shimAddTrackRemoveTrackWithNative;
exports.shimGetSendersWithDtmf = shimGetSendersWithDtmf;
Object.defineProperty(exports, "shimGetUserMedia", {
enumerable: true,
get: function get() {
return _getusermedia.shimGetUserMedia;
}
});
exports.shimMediaStream = shimMediaStream;
exports.shimOnTrack = shimOnTrack;
exports.shimPeerConnection = shimPeerConnection;
exports.shimSenderReceiverGetStats = shimSenderReceiverGetStats;
var utils = _interopRequireWildcard(require("../utils.js"));
var _getusermedia = require("./getusermedia");
function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(e) { return e ? t : r; })(e); }
function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != _typeof(e) && "function" != typeof e) return { "default": e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && {}.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n["default"] = e, t && t.set(e, n), n; }
function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : i + ""; }
function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
function shimMediaStream(window) {
window.MediaStream = window.MediaStream || window.webkitMediaStream;
}
function shimOnTrack(window) {
if (_typeof(window) === 'object' && window.RTCPeerConnection && !('ontrack' in window.RTCPeerConnection.prototype)) {
Object.defineProperty(window.RTCPeerConnection.prototype, 'ontrack', {
get: function get() {
return this._ontrack;
},
set: function set(f) {
if (this._ontrack) {
this.removeEventListener('track', this._ontrack);
}
this.addEventListener('track', this._ontrack = f);
},
enumerable: true,
configurable: true
});
var origSetRemoteDescription = window.RTCPeerConnection.prototype.setRemoteDescription;
window.RTCPeerConnection.prototype.setRemoteDescription = function setRemoteDescription() {
var _this = this;
if (!this._ontrackpoly) {
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 receiver;
if (window.RTCPeerConnection.prototype.getReceivers) {
receiver = _this.getReceivers().find(function (r) {
return r.track && r.track.id === te.track.id;
});
} else {
receiver = {
track: te.track
};
}
var event = new Event('track');
event.track = te.track;
event.receiver = receiver;
event.transceiver = {
receiver: receiver
};
event.streams = [e.stream];
_this.dispatchEvent(event);
});
e.stream.getTracks().forEach(function (track) {
var receiver;
if (window.RTCPeerConnection.prototype.getReceivers) {
receiver = _this.getReceivers().find(function (r) {
return r.track && r.track.id === track.id;
});
} else {
receiver = {
track: track
};
}
var event = new Event('track');
event.track = track;
event.receiver = receiver;
event.transceiver = {
receiver: receiver
};
event.streams = [e.stream];
_this.dispatchEvent(event);
});
};
this.addEventListener('addstream', this._ontrackpoly);
}
return origSetRemoteDescription.apply(this, arguments);
};
} else {
// even if RTCRtpTransceiver is in window, it is only used and
// emitted in unified-plan. Unfortunately this means we need
// to unconditionally wrap the event.
utils.wrapPeerConnectionEvent(window, 'track', function (e) {
if (!e.transceiver) {
Object.defineProperty(e, 'transceiver', {
value: {
receiver: e.receiver
}
});
}
return e;
});
}
}
function shimGetSendersWithDtmf(window) {
// Overrides addTrack/removeTrack, depends on shimAddTrackRemoveTrack.
if (_typeof(window) === 'object' && window.RTCPeerConnection && !('getSenders' in window.RTCPeerConnection.prototype) && 'createDTMFSender' in window.RTCPeerConnection.prototype) {
var shimSenderWithDtmf = function shimSenderWithDtmf(pc, track) {
return {
track: track,
get dtmf() {
if (this._dtmf === undefined) {
if (track.kind === 'audio') {
this._dtmf = pc.createDTMFSender(track);
} else {
this._dtmf = null;
}
}
return this._dtmf;
},
_pc: pc
};
};
// augment addTrack when getSenders is not available.
if (!window.RTCPeerConnection.prototype.getSenders) {
window.RTCPeerConnection.prototype.getSenders = function getSenders() {
this._senders = this._senders || [];
return this._senders.slice(); // return a copy of the internal state.
};
var origAddTrack = window.RTCPeerConnection.prototype.addTrack;
window.RTCPeerConnection.prototype.addTrack = function addTrack(track, stream) {
var sender = origAddTrack.apply(this, arguments);
if (!sender) {
sender = shimSenderWithDtmf(this, track);
this._senders.push(sender);
}
return sender;
};
var origRemoveTrack = window.RTCPeerConnection.prototype.removeTrack;
window.RTCPeerConnection.prototype.removeTrack = function removeTrack(sender) {
origRemoveTrack.apply(this, arguments);
var idx = this._senders.indexOf(sender);
if (idx !== -1) {
this._senders.splice(idx, 1);
}
};
}
var origAddStream = window.RTCPeerConnection.prototype.addStream;
window.RTCPeerConnection.prototype.addStream = function addStream(stream) {
var _this2 = this;
this._senders = this._senders || [];
origAddStream.apply(this, [stream]);
stream.getTracks().forEach(function (track) {
_this2._senders.push(shimSenderWithDtmf(_this2, track));
});
};
var origRemoveStream = window.RTCPeerConnection.prototype.removeStream;
window.RTCPeerConnection.prototype.removeStream = function removeStream(stream) {
var _this3 = this;
this._senders = this._senders || [];
origRemoveStream.apply(this, [stream]);
stream.getTracks().forEach(function (track) {
var sender = _this3._senders.find(function (s) {
return s.track === track;
});
if (sender) {
// remove sender
_this3._senders.splice(_this3._senders.indexOf(sender), 1);
}
});
};
} else if (_typeof(window) === 'object' && window.RTCPeerConnection && 'getSenders' in window.RTCPeerConnection.prototype && 'createDTMFSender' in window.RTCPeerConnection.prototype && window.RTCRtpSender && !('dtmf' in window.RTCRtpSender.prototype)) {
var origGetSenders = window.RTCPeerConnection.prototype.getSenders;
window.RTCPeerConnection.prototype.getSenders = function getSenders() {
var _this4 = this;
var senders = origGetSenders.apply(this, []);
senders.forEach(function (sender) {
return sender._pc = _this4;
});
return senders;
};
Object.defineProperty(window.RTCRtpSender.prototype, 'dtmf', {
get: function get() {
if (this._dtmf === undefined) {
if (this.track.kind === 'audio') {
this._dtmf = this._pc.createDTMFSender(this.track);
} else {
this._dtmf = null;
}
}
return this._dtmf;
}
});
}
}
function shimSenderReceiverGetStats(window) {
if (!(_typeof(window) === 'object' && window.RTCPeerConnection && window.RTCRtpSender && window.RTCRtpReceiver)) {
return;
}
// shim sender stats.
if (!('getStats' in window.RTCRtpSender.prototype)) {
var origGetSenders = window.RTCPeerConnection.prototype.getSenders;
if (origGetSenders) {
window.RTCPeerConnection.prototype.getSenders = function getSenders() {
var _this5 = this;
var senders = origGetSenders.apply(this, []);
senders.forEach(function (sender) {
return sender._pc = _this5;
});
return senders;
};
}
var origAddTrack = window.RTCPeerConnection.prototype.addTrack;
if (origAddTrack) {
window.RTCPeerConnection.prototype.addTrack = function addTrack() {
var sender = origAddTrack.apply(this, arguments);
sender._pc = this;
return sender;
};
}
window.RTCRtpSender.prototype.getStats = function getStats() {
var sender = this;
return this._pc.getStats().then(function (result) {
return (
/* Note: this will include stats of all senders that
* send a track with the same id as sender.track as
* it is not possible to identify the RTCRtpSender.
*/
utils.filterStats(result, sender.track, true)
);
});
};
}
// shim receiver stats.
if (!('getStats' in window.RTCRtpReceiver.prototype)) {
var origGetReceivers = window.RTCPeerConnection.prototype.getReceivers;
if (origGetReceivers) {
window.RTCPeerConnection.prototype.getReceivers = function getReceivers() {
var _this6 = this;
var receivers = origGetReceivers.apply(this, []);
receivers.forEach(function (receiver) {
return receiver._pc = _this6;
});
return receivers;
};
}
utils.wrapPeerConnectionEvent(window, 'track', function (e) {
e.receiver._pc = e.srcElement;
return e;
});
window.RTCRtpReceiver.prototype.getStats = function getStats() {
var receiver = this;
return this._pc.getStats().then(function (result) {
return utils.filterStats(result, receiver.track, false);
});
};
}
if (!('getStats' in window.RTCRtpSender.prototype && 'getStats' in window.RTCRtpReceiver.prototype)) {
return;
}
// shim RTCPeerConnection.getStats(track).
var origGetStats = window.RTCPeerConnection.prototype.getStats;
window.RTCPeerConnection.prototype.getStats = function getStats() {
if (arguments.length > 0 && arguments[0] instanceof window.MediaStreamTrack) {
var track = arguments[0];
var sender;
var receiver;
var err;
this.getSenders().forEach(function (s) {
if (s.track === track) {
if (sender) {
err = true;
} else {
sender = s;
}
}
});
this.getReceivers().forEach(function (r) {
if (r.track === track) {
if (receiver) {
err = true;
} else {
receiver = r;
}
}
return r.track === track;
});
if (err || sender && receiver) {
return Promise.reject(new DOMException('There are more than one sender or receiver for the track.', 'InvalidAccessError'));
} else if (sender) {
return sender.getStats();
} else if (receiver) {
return receiver.getStats();
}
return Promise.reject(new DOMException('There is no sender or receiver for the track.', 'InvalidAccessError'));
}
return origGetStats.apply(this, arguments);
};
}
function shimAddTrackRemoveTrackWithNative(window) {
// shim addTrack/removeTrack with native variants in order to make
// the interactions with legacy getLocalStreams behave as in other browsers.
// Keeps a mapping stream.id => [stream, rtpsenders...]
window.RTCPeerConnection.prototype.getLocalStreams = function getLocalStreams() {
var _this7 = this;
this._shimmedLocalStreams = this._shimmedLocalStreams || {};
return Object.keys(this._shimmedLocalStreams).map(function (streamId) {
return _this7._shimmedLocalStreams[streamId][0];
});
};
var origAddTrack = window.RTCPeerConnection.prototype.addTrack;
window.RTCPeerConnection.prototype.addTrack = function addTrack(track, stream) {
if (!stream) {
return origAddTrack.apply(this, arguments);
}
this._shimmedLocalStreams = this._shimmedLocalStreams || {};
var sender = origAddTrack.apply(this, arguments);
if (!this._shimmedLocalStreams[stream.id]) {
this._shimmedLocalStreams[stream.id] = [stream, sender];
} else if (this._shimmedLocalStreams[stream.id].indexOf(sender) === -1) {
this._shimmedLocalStreams[stream.id].push(sender);
}
return sender;
};
var origAddStream = window.RTCPeerConnection.prototype.addStream;
window.RTCPeerConnection.prototype.addStream = function addStream(stream) {
var _this8 = this;
this._shimmedLocalStreams = this._shimmedLocalStreams || {};
stream.getTracks().forEach(function (track) {
var alreadyExists = _this8.getSenders().find(function (s) {
return s.track === track;
});
if (alreadyExists) {
throw new DOMException('Track already exists.', 'InvalidAccessError');
}
});
var existingSenders = this.getSenders();
origAddStream.apply(this, arguments);
var newSenders = this.getSenders().filter(function (newSender) {
return existingSenders.indexOf(newSender) === -1;
});
this._shimmedLocalStreams[stream.id] = [stream].concat(newSenders);
};
var origRemoveStream = window.RTCPeerConnection.prototype.removeStream;
window.RTCPeerConnection.prototype.removeStream = function removeStream(stream) {
this._shimmedLocalStreams = this._shimmedLocalStreams || {};
delete this._shimmedLocalStreams[stream.id];
return origRemoveStream.apply(this, arguments);
};
var origRemoveTrack = window.RTCPeerConnection.prototype.removeTrack;
window.RTCPeerConnection.prototype.removeTrack = function removeTrack(sender) {
var _this9 = this;
this._shimmedLocalStreams = this._shimmedLocalStreams || {};
if (sender) {
Object.keys(this._shimmedLocalStreams).forEach(function (streamId) {
var idx = _this9._shimmedLocalStreams[streamId].indexOf(sender);
if (idx !== -1) {
_this9._shimmedLocalStreams[streamId].splice(idx, 1);
}
if (_this9._shimmedLocalStreams[streamId].length === 1) {
delete _this9._shimmedLocalStreams[streamId];
}
});
}
return origRemoveTrack.apply(this, arguments);
};
}
function shimAddTrackRemoveTrack(window, browserDetails) {
if (!window.RTCPeerConnection) {
return;
}
// shim addTrack and removeTrack.
if (window.RTCPeerConnection.prototype.addTrack && browserDetails.version >= 65) {
return shimAddTrackRemoveTrackWithNative(window);
}
// also shim pc.getLocalStreams when addTrack is shimmed
// to return the original streams.
var origGetLocalStreams = window.RTCPeerConnection.prototype.getLocalStreams;
window.RTCPeerConnection.prototype.getLocalStreams = function getLocalStreams() {
var _this10 = this;
var nativeStreams = origGetLocalStreams.apply(this);
this._reverseStreams = this._reverseStreams || {};
return nativeStreams.map(function (stream) {
return _this10._reverseStreams[stream.id];
});
};
var origAddStream = window.RTCPeerConnection.prototype.addStream;
window.RTCPeerConnection.prototype.addStream = function addStream(stream) {
var _this11 = this;
this._streams = this._streams || {};
this._reverseStreams = this._reverseStreams || {};
stream.getTracks().forEach(function (track) {
var alreadyExists = _this11.getSenders().find(function (s) {
return s.track === track;
});
if (alreadyExists) {
throw new DOMException('Track already exists.', 'InvalidAccessError');
}
});
// Add identity mapping for consistency with addTrack.
// Unless this is being used with a stream from addTrack.
if (!this._reverseStreams[stream.id]) {
var newStream = new window.MediaStream(stream.getTracks());
this._streams[stream.id] = newStream;
this._reverseStreams[newStream.id] = stream;
stream = newStream;
}
origAddStream.apply(this, [stream]);
};
var origRemoveStream = window.RTCPeerConnection.prototype.removeStream;
window.RTCPeerConnection.prototype.removeStream = function removeStream(stream) {
this._streams = this._streams || {};
this._reverseStreams = this._reverseStreams || {};
origRemoveStream.apply(this, [this._streams[stream.id] || stream]);
delete this._reverseStreams[this._streams[stream.id] ? this._streams[stream.id].id : stream.id];
delete this._streams[stream.id];
};
window.RTCPeerConnection.prototype.addTrack = function addTrack(track, stream) {
var _this12 = this;
if (this.signalingState === 'closed') {
throw new DOMException('The RTCPeerConnection\'s signalingState is \'closed\'.', 'InvalidStateError');
}
var streams = [].slice.call(arguments, 1);
if (streams.length !== 1 || !streams[0].getTracks().find(function (t) {
return t === track;
})) {
// this is not fully correct but all we can manage without
// [[associated MediaStreams]] internal slot.
throw new DOMException('The adapter.js addTrack polyfill only supports a single ' + ' stream which is associated with the specified track.', 'NotSupportedError');
}
var alreadyExists = this.getSenders().find(function (s) {
return s.track === track;
});
if (alreadyExists) {
throw new DOMException('Track already exists.', 'InvalidAccessError');
}
this._streams = this._streams || {};
this._reverseStreams = this._reverseStreams || {};
var oldStream = this._streams[stream.id];
if (oldStream) {
// this is using odd Chrome behaviour, use with caution:
// https://bugs.chromium.org/p/webrtc/issues/detail?id=7815
// Note: we rely on the high-level addTrack/dtmf shim to
// create the sender with a dtmf sender.
oldStream.addTrack(track);
// Trigger ONN async.
Promise.resolve().then(function () {
_this12.dispatchEvent(new Event('negotiationneeded'));
});
} else {
var newStream = new window.MediaStream([track]);
this._streams[stream.id] = newStream;
this._reverseStreams[newStream.id] = stream;
this.addStream(newStream);
}
return this.getSenders().find(function (s) {
return s.track === track;
});
};
// replace the internal stream id with the external one and
// vice versa.
function replaceInternalStreamId(pc, description) {
var sdp = description.sdp;
Object.keys(pc._reverseStreams || []).forEach(function (internalId) {
var externalStream = pc._reverseStreams[internalId];
var internalStream = pc._streams[externalStream.id];
sdp = sdp.replace(new RegExp(internalStream.id, 'g'), externalStream.id);
});
return new RTCSessionDescription({
type: description.type,
sdp: sdp
});
}
function replaceExternalStreamId(pc, description) {
var sdp = description.sdp;
Object.keys(pc._reverseStreams || []).forEach(function (internalId) {
var externalStream = pc._reverseStreams[internalId];
var internalStream = pc._streams[externalStream.id];
sdp = sdp.replace(new RegExp(externalStream.id, 'g'), internalStream.id);
});
return new RTCSessionDescription({
type: description.type,
sdp: sdp
});
}
['createOffer', 'createAnswer'].forEach(function (method) {
var nativeMethod = window.RTCPeerConnection.prototype[method];
var methodObj = _defineProperty({}, method, function () {
var _this13 = this;
var args = arguments;
var isLegacyCall = arguments.length && typeof arguments[0] === 'function';
if (isLegacyCall) {
return nativeMethod.apply(this, [function (description) {
var desc = replaceInternalStreamId(_this13, description);
args[0].apply(null, [desc]);
}, function (err) {
if (args[1]) {
args[1].apply(null, err);
}
}, arguments[2]]);
}
return nativeMethod.apply(this, arguments).then(function (description) {
return replaceInternalStreamId(_this13, description);
});
});
window.RTCPeerConnection.prototype[method] = methodObj[method];
});
var origSetLocalDescription = window.RTCPeerConnection.prototype.setLocalDescription;
window.RTCPeerConnection.prototype.setLocalDescription = function setLocalDescription() {
if (!arguments.length || !arguments[0].type) {
return origSetLocalDescription.apply(this, arguments);
}
arguments[0] = replaceExternalStreamId(this, arguments[0]);
return origSetLocalDescription.apply(this, arguments);
};
// TODO: mangle getStats: https://w3c.github.io/webrtc-stats/#dom-rtcmediastreamstats-streamidentifier
var origLocalDescription = Object.getOwnPropertyDescriptor(window.RTCPeerConnection.prototype, 'localDescription');
Object.defineProperty(window.RTCPeerConnection.prototype, 'localDescription', {
get: function get() {
var description = origLocalDescription.get.apply(this);
if (description.type === '') {
return description;
}
return replaceInternalStreamId(this, description);
}
});
window.RTCPeerConnection.prototype.removeTrack = function removeTrack(sender) {
var _this14 = this;
if (this.signalingState === 'closed') {
throw new DOMException('The RTCPeerConnection\'s signalingState is \'closed\'.', 'InvalidStateError');
}
// We can not yet check for sender instanceof RTCRtpSender
// since we shim RTPSender. So we check if sender._pc is set.
if (!sender._pc) {
throw new DOMException('Argument 1 of RTCPeerConnection.removeTrack ' + 'does not implement interface RTCRtpSender.', 'TypeError');
}
var isLocal = sender._pc === this;
if (!isLocal) {
throw new DOMException('Sender was not created by this connection.', 'InvalidAccessError');
}
// Search for the native stream the senders track belongs to.
this._streams = this._streams || {};
var stream;
Object.keys(this._streams).forEach(function (streamid) {
var hasTrack = _this14._streams[streamid].getTracks().find(function (track) {
return sender.track === track;
});
if (hasTrack) {
stream = _this14._streams[streamid];
}
});
if (stream) {
if (stream.getTracks().length === 1) {
// if this is the last track of the stream, remove the stream. This
// takes care of any shimmed _senders.
this.removeStream(this._reverseStreams[stream.id]);
} else {
// relying on the same odd chrome behaviour as above.
stream.removeTrack(sender.track);
}
this.dispatchEvent(new Event('negotiationneeded'));
}
};
}
function shimPeerConnection(window, browserDetails) {
if (!window.RTCPeerConnection && window.webkitRTCPeerConnection) {
// very basic support for old versions.
window.RTCPeerConnection = window.webkitRTCPeerConnection;
}
if (!window.RTCPeerConnection) {
return;
}
// shim implicit creation of RTCSessionDescription/RTCIceCandidate
if (browserDetails.version < 53) {
['setLocalDescription', 'setRemoteDescription', 'addIceCandidate'].forEach(function (method) {
var nativeMethod = window.RTCPeerConnection.prototype[method];
var methodObj = _defineProperty({}, method, function () {
arguments[0] = new (method === 'addIceCandidate' ? window.RTCIceCandidate : window.RTCSessionDescription)(arguments[0]);
return nativeMethod.apply(this, arguments);
});
window.RTCPeerConnection.prototype[method] = methodObj[method];
});
}
}
// Attempt to fix ONN in plan-b mode.
function fixNegotiationNeeded(window, browserDetails) {
utils.wrapPeerConnectionEvent(window, 'negotiationneeded', function (e) {
var pc = e.target;
if (browserDetails.version < 72 || pc.getConfiguration && pc.getConfiguration().sdpSemantics === 'plan-b') {
if (pc.signalingState !== 'stable') {
return;
}
}
return e;
});
}
},{"../utils.js":10,"./getusermedia":4}],4:[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.
*/
/* eslint-env node */
'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.shimGetUserMedia = shimGetUserMedia;
var utils = _interopRequireWildcard(require("../utils.js"));
function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(e) { return e ? t : r; })(e); }
function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != _typeof(e) && "function" != typeof e) return { "default": e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && {}.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n["default"] = e, t && t.set(e, n), n; }
function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
var logging = utils.log;
function shimGetUserMedia(window, browserDetails) {
var navigator = window && window.navigator;
if (!navigator.mediaDevices) {
return;
}
var constraintsToChrome_ = function constraintsToChrome_(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 oldname_(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 shimConstraints_ = function shimConstraints_(constraints, func) {
if (browserDetails.version >= 61) {
return func(constraints);
}
constraints = JSON.parse(JSON.stringify(constraints));
if (constraints && _typeof(constraints.audio) === 'object') {
var remap = function remap(obj, a, b) {
if (a in obj && !(b in obj)) {
obj[b] = obj[a];
delete obj[a];
}
};
constraints = JSON.parse(JSON.stringify(constraints));
remap(constraints.audio, 'autoGainControl', 'googAutoGainControl');
remap(constraints.audio, 'noiseSuppression', 'googNoiseSuppression');
constraints.audio = constraintsToChrome_(constraints.audio);
}
if (constraints && _typeof(constraints.video) === 'object') {
// Shim facingMode for mobile & surface pro.
var face = constraints.video.facingMode;
face = face && (_typeof(face) === 'object' ? face : {
ideal: face
});
var getSupportedFacingModeLies = browserDetails.version < 66;
if (face && (face.exact === 'user' || face.exact === 'environment' || face.ideal === 'user' || face.ideal === 'environment') && !(navigator.mediaDevices.getSupportedConstraints && navigator.mediaDevices.getSupportedConstraints().facingMode && !getSupportedFacingModeLies)) {
delete constraints.video.facingMode;
var matches;
if (face.exact === 'environment' || face.ideal === 'environment') {
matches = ['back', 'rear'];
} else if (face.exact === 'user' || face.ideal === 'user') {
matches = ['front'];
}
if (matches) {
// Look for matches in label, or use last cam for back (typical).
return navigator.mediaDevices.enumerateDevices().then(function (devices) {
devices = devices.filter(function (d) {
return d.kind === 'videoinput';
});
var dev = devices.find(function (d) {
return matches.some(function (match) {
return d.label.toLowerCase().includes(match);
});
});
if (!dev && devices.length && matches.includes('back')) {
dev = devices[devices.length - 1]; // more likely the back cam
}
if (dev) {
constraints.video.deviceId = face.exact ? {
exact: dev.deviceId
} : {
ideal: dev.deviceId
};
}
constraints.video = constraintsToChrome_(constraints.video);
logging('chrome: ' + JSON.stringify(constraints));
return func(constraints);
});
}
}
constraints.video = constraintsToChrome_(constraints.video);
}
logging('chrome: ' + JSON.stringify(constraints));
return func(constraints);
};
var shimError_ = function shimError_(e) {
if (browserDetails.version >= 64) {
return e;
}
return {
name: {
PermissionDeniedError: 'NotAllowedError',
PermissionDismissedError: 'NotAllowedError',
InvalidStateError: 'NotAllowedError',
DevicesNotFoundError: 'NotFoundError',
ConstraintNotSatisfiedError: 'OverconstrainedError',
TrackStartError: 'NotReadableError',
MediaDeviceFailedDueToShutdown: 'NotAllowedError',
MediaDeviceKillSwitchOn: 'NotAllowedError',
TabCaptureError: 'AbortError',
ScreenCaptureError: 'AbortError',
DeviceCaptureError: 'AbortError'
}[e.name] || e.name,
message: e.message,
constraint: e.constraint || e.constraintName,
toString: function toString() {
return this.name + (this.message && ': ') + this.message;
}
};
};
var getUserMedia_ = function getUserMedia_(constraints, onSuccess, onError) {
shimConstraints_(constraints, function (c) {
navigator.webkitGetUserMedia(c, onSuccess, function (e) {
if (onError) {
onError(shimError_(e));
}
});
});
};
navigator.getUserMedia = getUserMedia_.bind(navigator);
// Even though Chrome 45 has navigator.mediaDevices and a getUserMedia
// function which returns a Promise, it does not accept spec-style
// constraints.
if (navigator.mediaDevices.getUserMedia) {
var origGetUserMedia = navigator.mediaDevices.getUserMedia.bind(navigator.mediaDevices);
navigator.mediaDevices.getUserMedia = function (cs) {
return shimConstraints_(cs, function (c) {
return origGetUserMedia(c).then(function (stream) {
if (c.audio && !stream.getAudioTracks().length || c.video && !stream.getVideoTracks().length) {
stream.getTracks().forEach(function (track) {
track.stop();
});
throw new DOMException('', 'NotFoundError');
}
return stream;
}, function (e) {
return Promise.reject(shimError_(e));
});
});
};
}
}
},{"../utils.js":10}],5:[function(require,module,exports){
/*
* Copyright (c) 2017 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.
*/
/* eslint-env node */
'use strict';
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.removeExtmapAllowMixed = removeExtmapAllowMixed;
exports.shimAddIceCandidateNullOrEmpty = shimAddIceCandidateNullOrEmpty;
exports.shimConnectionState = shimConnectionState;
exports.shimMaxMessageSize = shimMaxMessageSize;
exports.shimParameterlessSetLocalDescription = shimParameterlessSetLocalDescription;
exports.shimRTCIceCandidate = shimRTCIceCandidate;
exports.shimRTCIceCandidateRelayProtocol = shimRTCIceCandidateRelayProtocol;
exports.shimSendThrowTypeError = shimSendThrowTypeError;
var _sdp = _interopRequireDefault(require("sdp"));
var utils = _interopRequireWildcard(require("./utils"));
function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(e) { return e ? t : r; })(e); }
function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != _typeof(e) && "function" != typeof e) return { "default": e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && {}.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n["default"] = e, t && t.set(e, n), n; }
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
function shimRTCIceCandidate(window) {
// foundation is arbitrarily chosen as an indicator for full support for
// https://w3c.github.io/webrtc-pc/#rtcicecandidate-interface
if (!window.RTCIceCandidate || window.RTCIceCandidate && 'foundation' in window.RTCIceCandidate.prototype) {
return;
}
var NativeRTCIceCandidate = window.RTCIceCandidate;
window.RTCIceCandidate = function RTCIceCandidate(args) {
// Remove the a= which shouldn't be part of the candidate string.
if (_typeof(args) === 'object' && args.candidate && args.candidate.indexOf('a=') === 0) {
args = JSON.parse(JSON.stringify(args));
args.candidate = args.candidate.substring(2);
}
if (args.candidate && args.candidate.length) {
// Augment the native candidate with the parsed fields.
var nativeCandidate = new NativeRTCIceCandidate(args);
var parsedCandidate = _sdp["default"].parseCandidate(args.candidate);
for (var key in parsedCandidate) {
if (!(key in nativeCandidate)) {
Object.defineProperty(nativeCandidate, key, {
value: parsedCandidate[key]
});
}
}
// Override serializer to not serialize the extra attributes.
nativeCandidate.toJSON = function toJSON() {
return {
candidate: nativeCandidate.candidate,
sdpMid: nativeCandidate.sdpMid,
sdpMLineIndex: nativeCandidate.sdpMLineIndex,
usernameFragment: nativeCandidate.usernameFragment
};
};
return nativeCandidate;
}
return new NativeRTCIceCandidate(args);
};
window.RTCIceCandidate.prototype = NativeRTCIceCandidate.prototype;
// Hook up the augmented candidate in onicecandidate and
// addEventListener('icecandidate', ...)
utils.wrapPeerConnectionEvent(window, 'icecandidate', function (e) {
if (e.candidate) {
Object.defineProperty(e, 'candidate', {
value: new window.RTCIceCandidate(e.candidate),
writable: 'false'
});
}
return e;
});
}
function shimRTCIceCandidateRelayProtocol(window) {
if (!window.RTCIceCandidate || window.RTCIceCandidate && 'relayProtocol' in window.RTCIceCandidate.prototype) {
return;
}
// Hook up the augmented candidate in onicecandidate and
// addEventListener('icecandidate', ...)
utils.wrapPeerConnectionEvent(window, 'icecandidate', function (e) {
if (e.candidate) {
var parsedCandidate = _sdp["default"].parseCandidate(e.candidate.candidate);
if (parsedCandidate.type === 'relay') {
// This is a libwebrtc-specific mapping of local type preference
// to relayProtocol.
e.candidate.relayProtocol = {
0: 'tls',
1: 'tcp',
2: 'udp'
}[parsedCandidate.priority >> 24];
}
}
return e;
});
}
function shimMaxMessageSize(window, browserDetails) {
if (!window.RTCPeerConnection) {
return;
}
if (!('sctp' in window.RTCPeerConnection.prototype)) {
Object.defineProperty(window.RTCPeerConnection.prototype, 'sctp', {
get: function get() {
return typeof this._sctp === 'undefined' ? null : this._sctp;
}
});
}
var sctpInDescription = function sctpInDescription(description) {
if (!description || !description.sdp) {
return false;
}
var sections = _sdp["default"].splitSections(description.sdp);
sections.shift();
return sections.some(function (mediaSection) {
var mLine = _sdp["default"].parseMLine(mediaSection);
return mLine && mLine.kind === 'application' && mLine.protocol.indexOf('SCTP') !== -1;
});
};
var getRemoteFirefoxVersion = function getRemoteFirefoxVersion(description) {
// TODO: Is there a better solution for detecting Firefox?
var match = description.sdp.match(/mozilla...THIS_IS_SDPARTA-(\d+)/);
if (match === null || match.length < 2) {
return -1;
}
var version = parseInt(match[1], 10);
// Test for NaN (yes, this is ugly)
return version !== version ? -1 : version;
};
var getCanSendMaxMessageSize = function getCanSendMaxMessageSize(remoteIsFirefox) {
// Every implementation we know can send at least 64 KiB.
// Note: Although Chrome is technically able to send up to 256 KiB, the
// data does not reach the other peer reliably.
// See: https://bugs.chromium.org/p/webrtc/issues/detail?id=8419
var canSendMaxMessageS