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gecko-dev
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gecko-dev/dom/media/PeerConnection.js

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JavaScript
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/* jshint moz:true, browser:true */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
Cu.import("resource://gre/modules/Services.jsm");
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "PeerConnectionIdp",
"resource://gre/modules/media/PeerConnectionIdp.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "convertToRTCStatsReport",
"resource://gre/modules/media/RTCStatsReport.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "AppConstants",
"resource://gre/modules/AppConstants.jsm");
const PC_CONTRACT = "@mozilla.org/dom/peerconnection;1";
const PC_OBS_CONTRACT = "@mozilla.org/dom/peerconnectionobserver;1";
const PC_ICE_CONTRACT = "@mozilla.org/dom/rtcicecandidate;1";
const PC_SESSION_CONTRACT = "@mozilla.org/dom/rtcsessiondescription;1";
const PC_MANAGER_CONTRACT = "@mozilla.org/dom/peerconnectionmanager;1";
const PC_STATS_CONTRACT = "@mozilla.org/dom/rtcstatsreport;1";
const PC_STATIC_CONTRACT = "@mozilla.org/dom/peerconnectionstatic;1";
const PC_SENDER_CONTRACT = "@mozilla.org/dom/rtpsender;1";
const PC_RECEIVER_CONTRACT = "@mozilla.org/dom/rtpreceiver;1";
const PC_COREQUEST_CONTRACT = "@mozilla.org/dom/createofferrequest;1";
const PC_DTMF_SENDER_CONTRACT = "@mozilla.org/dom/rtcdtmfsender;1";
const PC_CID = Components.ID("{bdc2e533-b308-4708-ac8e-a8bfade6d851}");
const PC_OBS_CID = Components.ID("{d1748d4c-7f6a-4dc5-add6-d55b7678537e}");
const PC_ICE_CID = Components.ID("{02b9970c-433d-4cc2-923d-f7028ac66073}");
const PC_SESSION_CID = Components.ID("{1775081b-b62d-4954-8ffe-a067bbf508a7}");
const PC_MANAGER_CID = Components.ID("{7293e901-2be3-4c02-b4bd-cbef6fc24f78}");
const PC_STATS_CID = Components.ID("{7fe6e18b-0da3-4056-bf3b-440ef3809e06}");
const PC_STATIC_CID = Components.ID("{0fb47c47-a205-4583-a9fc-cbadf8c95880}");
const PC_SENDER_CID = Components.ID("{4fff5d46-d827-4cd4-a970-8fd53977440e}");
const PC_RECEIVER_CID = Components.ID("{d974b814-8fde-411c-8c45-b86791b81030}");
const PC_COREQUEST_CID = Components.ID("{74b2122d-65a8-4824-aa9e-3d664cb75dc2}");
const PC_DTMF_SENDER_CID = Components.ID("{3610C242-654E-11E6-8EC0-6D1BE389A607}");
function logMsg(msg, file, line, flag, winID) {
let scriptErrorClass = Cc["@mozilla.org/scripterror;1"];
let scriptError = scriptErrorClass.createInstance(Ci.nsIScriptError);
scriptError.initWithWindowID(msg, file, null, line, 0, flag,
"content javascript", winID);
let console = Cc["@mozilla.org/consoleservice;1"].
getService(Ci.nsIConsoleService);
console.logMessage(scriptError);
};
let setupPrototype = (_class, dict) => {
_class.prototype.classDescription = _class.name;
Object.assign(_class.prototype, dict);
}
// Global list of PeerConnection objects, so they can be cleaned up when
// a page is torn down. (Maps inner window ID to an array of PC objects).
class GlobalPCList {
constructor() {
this._list = {};
this._networkdown = false; // XXX Need to query current state somehow
this._lifecycleobservers = {};
this._nextId = 1;
Services.obs.addObserver(this, "inner-window-destroyed", true);
Services.obs.addObserver(this, "profile-change-net-teardown", true);
Services.obs.addObserver(this, "network:offline-about-to-go-offline", true);
Services.obs.addObserver(this, "network:offline-status-changed", true);
Services.obs.addObserver(this, "gmp-plugin-crash", true);
Services.obs.addObserver(this, "PeerConnection:response:allow", true);
Services.obs.addObserver(this, "PeerConnection:response:deny", true);
if (Cc["@mozilla.org/childprocessmessagemanager;1"]) {
let mm = Cc["@mozilla.org/childprocessmessagemanager;1"].getService(Ci.nsIMessageListenerManager);
mm.addMessageListener("gmp-plugin-crash", this);
}
}
notifyLifecycleObservers(pc, type) {
for (var key of Object.keys(this._lifecycleobservers)) {
this._lifecycleobservers[key](pc, pc._winID, type);
}
}
addPC(pc) {
let winID = pc._winID;
if (this._list[winID]) {
this._list[winID].push(Cu.getWeakReference(pc));
} else {
this._list[winID] = [Cu.getWeakReference(pc)];
}
pc._globalPCListId = this._nextId++;
this.removeNullRefs(winID);
}
findPC(globalPCListId) {
for (let winId in this._list) {
if (this._list.hasOwnProperty(winId)) {
for (let pcref of this._list[winId]) {
let pc = pcref.get();
if (pc && pc._globalPCListId == globalPCListId) {
return pc;
}
}
}
}
}
removeNullRefs(winID) {
if (this._list[winID] === undefined) {
return;
}
this._list[winID] = this._list[winID].filter(
function (e,i,a) { return e.get() !== null; });
if (this._list[winID].length === 0) {
delete this._list[winID];
}
}
hasActivePeerConnection(winID) {
this.removeNullRefs(winID);
return this._list[winID] ? true : false;
}
handleGMPCrash(data) {
let broadcastPluginCrash = function(list, winID, pluginID, pluginName) {
if (list.hasOwnProperty(winID)) {
list[winID].forEach(function(pcref) {
let pc = pcref.get();
if (pc) {
pc._pc.pluginCrash(pluginID, pluginName);
}
});
}
};
// a plugin crashed; if it's associated with any of our PCs, fire an
// event to the DOM window
for (let winId in this._list) {
broadcastPluginCrash(this._list, winId, data.pluginID, data.pluginName);
}
}
receiveMessage({ name, data }) {
if (name == "gmp-plugin-crash") {
this.handleGMPCrash(data);
}
}
observe(subject, topic, data) {
let cleanupPcRef = function(pcref) {
let pc = pcref.get();
if (pc) {
pc._pc.close();
delete pc._observer;
pc._pc = null;
}
};
let cleanupWinId = function(list, winID) {
if (list.hasOwnProperty(winID)) {
list[winID].forEach(cleanupPcRef);
delete list[winID];
}
};
if (topic == "inner-window-destroyed") {
let winID = subject.QueryInterface(Ci.nsISupportsPRUint64).data;
cleanupWinId(this._list, winID);
if (this._lifecycleobservers.hasOwnProperty(winID)) {
delete this._lifecycleobservers[winID];
}
} else if (topic == "profile-change-net-teardown" ||
topic == "network:offline-about-to-go-offline") {
// As Necko doesn't prevent us from accessing the network we still need to
// monitor the network offline/online state here. See bug 1326483
this._networkdown = true;
} else if (topic == "network:offline-status-changed") {
if (data == "offline") {
this._networkdown = true;
} else if (data == "online") {
this._networkdown = false;
}
} else if (topic == "gmp-plugin-crash") {
if (subject instanceof Ci.nsIWritablePropertyBag2) {
let pluginID = subject.getPropertyAsUint32("pluginID");
let pluginName = subject.getPropertyAsAString("pluginName");
let data = { pluginID, pluginName };
this.handleGMPCrash(data);
}
} else if (topic == "PeerConnection:response:allow" ||
topic == "PeerConnection:response:deny") {
var pc = this.findPC(data);
if (pc) {
if (topic == "PeerConnection:response:allow") {
pc._settlePermission.allow();
} else {
let err = new pc._win.DOMException("The request is not allowed by " +
"the user agent or the platform in the current context.",
"NotAllowedError");
pc._settlePermission.deny(err);
}
}
}
}
_registerPeerConnectionLifecycleCallback(winID, cb) {
this._lifecycleobservers[winID] = cb;
}
}
setupPrototype(GlobalPCList, {
QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver,
Ci.nsIMessageListener,
Ci.nsISupportsWeakReference,
Ci.IPeerConnectionManager]),
classID: PC_MANAGER_CID,
_xpcom_factory: {
createInstance: function(outer, iid) {
if (outer) {
throw Cr.NS_ERROR_NO_AGGREGATION;
}
return _globalPCList.QueryInterface(iid);
}
}
});
var _globalPCList = new GlobalPCList();
class RTCIceCandidate {
init(win) {
this._win = win;
}
__init(dict) {
Object.assign(this, dict);
}
}
setupPrototype(RTCIceCandidate, {
classID: PC_ICE_CID,
contractID: PC_ICE_CONTRACT,
QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports,
Ci.nsIDOMGlobalPropertyInitializer])
});
class RTCSessionDescription {
init(win) {
this._win = win;
this._winID = this._win.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIDOMWindowUtils).currentInnerWindowID;
}
__init({ type, sdp }) {
Object.assign(this, { _type: type, _sdp: sdp });
}
get type() { return this._type; }
set type(type) {
this.warn();
this._type = type;
}
get sdp() { return this._sdp; }
set sdp(sdp) {
this.warn();
this._sdp = sdp;
}
warn() {
if (!this._warned) {
// Warn once per RTCSessionDescription about deprecated writable usage.
this.logWarning("RTCSessionDescription's members are readonly! " +
"Writing to them is deprecated and will break soon!");
this._warned = true;
}
}
logWarning(msg) {
let err = this._win.Error();
logMsg(msg, err.fileName, err.lineNumber, Ci.nsIScriptError.warningFlag,
this._winID);
}
}
setupPrototype(RTCSessionDescription, {
classID: PC_SESSION_CID,
contractID: PC_SESSION_CONTRACT,
QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports,
Ci.nsIDOMGlobalPropertyInitializer])
});
class RTCStatsReport {
constructor(win, dict) {
this._win = win;
this._pcid = dict.pcid;
this._report = convertToRTCStatsReport(dict);
}
setInternal(aKey, aObj) {
return this.__DOM_IMPL__.__set(aKey, aObj);
}
// TODO: Remove legacy API eventually
// see Bug 1328194
//
// Since maplike is recent, we still also make the stats available as legacy
// enumerable read-only properties directly on our content-facing object.
// Must be called after our webidl sandwich is made.
makeStatsPublic(warnNullable, isLegacy) {
let legacyProps = {};
for (let key in this._report) {
let internal = Cu.cloneInto(this._report[key], this._win);
if (isLegacy) {
internal.type = this._specToLegacyFieldMapping[internal.type] || internal.type;
}
this.setInternal(key, internal);
let value = Cu.cloneInto(this._report[key], this._win);
value.type = this._specToLegacyFieldMapping[value.type] || value.type;
legacyProps[key] = {
enumerable: true, configurable: false,
get: Cu.exportFunction(function() {
if (warnNullable.warn) {
warnNullable.warn();
warnNullable.warn = null;
}
return value;
}, this.__DOM_IMPL__.wrappedJSObject)
};
}
Object.defineProperties(this.__DOM_IMPL__.wrappedJSObject, legacyProps);
}
get mozPcid() { return this._pcid; }
}
setupPrototype(RTCStatsReport, {
classID: PC_STATS_CID,
contractID: PC_STATS_CONTRACT,
QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports]),
_specToLegacyFieldMapping: {
'inbound-rtp' : 'inboundrtp',
'outbound-rtp':'outboundrtp',
'candidate-pair':'candidatepair',
'local-candidate':'localcandidate',
'remote-candidate':'remotecandidate'
}
});
class RTCPeerConnection {
constructor() {
this._senders = [];
this._receivers = [];
this._pc = null;
this._closed = false;
this._localType = null;
this._remoteType = null;
// http://rtcweb-wg.github.io/jsep/#rfc.section.4.1.9
// canTrickle == null means unknown; when a remote description is received it
// is set to true or false based on the presence of the "trickle" ice-option
this._canTrickle = null;
// States
this._iceGatheringState = this._iceConnectionState = "new";
this._hasStunServer = this._hasTurnServer = false;
this._iceGatheredRelayCandidates = false;
// TODO: Remove legacy API eventually
// see Bug 1328194
this._onGetStatsIsLegacy = false;
}
init(win) {
this._win = win;
}
__init(rtcConfig) {
this._winID = this._win.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIDOMWindowUtils).currentInnerWindowID;
// TODO: Update this code once we support pc.setConfiguration, to track
// setting from content independently from pref (Bug 1181768).
if (rtcConfig.iceTransportPolicy == "all" &&
Services.prefs.getBoolPref("media.peerconnection.ice.relay_only")) {
rtcConfig.iceTransportPolicy = "relay";
}
this._config = Object.assign({}, rtcConfig);
if (!rtcConfig.iceServers ||
!Services.prefs.getBoolPref("media.peerconnection.use_document_iceservers")) {
try {
rtcConfig.iceServers =
JSON.parse(Services.prefs.getCharPref("media.peerconnection.default_iceservers") || "[]");
} catch (e) {
this.logWarning(
"Ignoring invalid media.peerconnection.default_iceservers in about:config");
rtcConfig.iceServers = [];
}
try {
this._mustValidateRTCConfiguration(rtcConfig,
"Ignoring invalid media.peerconnection.default_iceservers in about:config");
} catch (e) {
this.logWarning(e.message);
rtcConfig.iceServers = [];
}
} else {
// This gets executed in the typical case when iceServers
// are passed in through the web page.
this._mustValidateRTCConfiguration(rtcConfig,
"RTCPeerConnection constructor passed invalid RTCConfiguration");
}
var principal = Cu.getWebIDLCallerPrincipal();
this._isChrome = Services.scriptSecurityManager.isSystemPrincipal(principal);
if (_globalPCList._networkdown) {
throw new this._win.DOMException(
"Can't create RTCPeerConnections when the network is down",
"InvalidStateError");
}
this.makeGetterSetterEH("ontrack");
this.makeLegacyGetterSetterEH("onaddstream", "Use peerConnection.ontrack instead.");
this.makeLegacyGetterSetterEH("onaddtrack", "Use peerConnection.ontrack instead.");
this.makeGetterSetterEH("onicecandidate");
this.makeGetterSetterEH("onnegotiationneeded");
this.makeGetterSetterEH("onsignalingstatechange");
this.makeGetterSetterEH("onremovestream");
this.makeGetterSetterEH("ondatachannel");
this.makeGetterSetterEH("oniceconnectionstatechange");
this.makeGetterSetterEH("onicegatheringstatechange");
this.makeGetterSetterEH("onidentityresult");
this.makeGetterSetterEH("onpeeridentity");
this.makeGetterSetterEH("onidpassertionerror");
this.makeGetterSetterEH("onidpvalidationerror");
this._pc = new this._win.PeerConnectionImpl();
this._operationsChain = this._win.Promise.resolve();
this.__DOM_IMPL__._innerObject = this;
this._observer = new this._win.PeerConnectionObserver(this.__DOM_IMPL__);
var location = "" + this._win.location;
// Warn just once per PeerConnection about deprecated getStats usage.
this._warnDeprecatedStatsAccessNullable = { warn: () =>
this.logWarning("non-maplike pc.getStats access is deprecated, and will be removed in the near future! " +
"See http://w3c.github.io/webrtc-pc/#getstats-example for usage.") };
this._warnDeprecatedStatsCallbacksNullable = { warn: () =>
this.logWarning("Callback-based pc.getStats is deprecated, and will be removed in the near future! Use promise-version! " +
"See http://w3c.github.io/webrtc-pc/#getstats-example for usage.") };
// Add a reference to the PeerConnection to global list (before init).
_globalPCList.addPC(this);
this._impl.initialize(this._observer, this._win, rtcConfig,
Services.tm.currentThread);
this._certificateReady = this._initCertificate(rtcConfig.certificates);
this._initIdp();
_globalPCList.notifyLifecycleObservers(this, "initialized");
}
get _impl() {
if (!this._pc) {
throw new this._win.DOMException(
"RTCPeerConnection is gone (did you enter Offline mode?)",
"InvalidStateError");
}
return this._pc;
}
getConfiguration() {
return this._config;
}
async _initCertificate(certificates = []) {
let certificate;
if (certificates.length > 1) {
throw new this._win.DOMException(
"RTCPeerConnection does not currently support multiple certificates",
"NotSupportedError");
}
if (certificates.length) {
certificate = certificates.find(c => c.expires > Date.now());
if (!certificate) {
throw new this._win.DOMException(
"Unable to create RTCPeerConnection with an expired certificate",
"InvalidParameterError");
}
}
if (!certificate) {
certificate = await this._win.RTCPeerConnection.generateCertificate({
name: "ECDSA", namedCurve: "P-256"
});
}
this._impl.certificate = certificate;
}
_resetPeerIdentityPromise() {
this._peerIdentity = new this._win.Promise((resolve, reject) => {
this._resolvePeerIdentity = resolve;
this._rejectPeerIdentity = reject;
});
}
_initIdp() {
this._resetPeerIdentityPromise();
this._lastIdentityValidation = this._win.Promise.resolve();
let prefName = "media.peerconnection.identity.timeout";
let idpTimeout = Services.prefs.getIntPref(prefName);
this._localIdp = new PeerConnectionIdp(this._win, idpTimeout);
this._remoteIdp = new PeerConnectionIdp(this._win, idpTimeout);
}
// Add a function to the internal operations chain.
async _chain(func) {
let p = (async () => {
await this._operationsChain;
// Don't _checkClosed() inside the chain, because it throws, and spec
// behavior is to NOT reject outstanding promises on close. This is what
// happens most of the time anyways, as the c++ code stops calling us once
// closed, hanging the chain. However, c++ may already have queued tasks
// on us, so if we're one of those then sit back.
if (this._closed) {
return;
}
return await func();
})();
// don't propagate errors in the operations chain (this is a fork of p).
this._operationsChain = p.catch(() => {});
return await p;
}
// It's basically impossible to use async directly in JSImplemented code,
// because the implicit promise must be wrapped to the right type for content.
//
// The _async wrapper takes care of this. The _legacy wrapper implements
// legacy callbacks in a manner that produces correct line-numbers in errors,
// provided that methods validate their inputs before putting themselves on
// the pc's operations chain.
//
// These wrappers also serve as guards against settling promises past close().
_async(func) {
return this._win.Promise.resolve(this._closeWrapper(func));
}
_legacy(...args) {
return this._win.Promise.resolve(this._legacyCloseWrapper(...args));
}
_auto(onSucc, onErr, func) {
return (typeof onSucc == "function") ? this._legacy(onSucc, onErr, func)
: this._async(func);
}
async _closeWrapper(func) {
let closed = this._closed;
try {
let result = await func();
if (!closed && this._closed) {
await new Promise(() => {});
}
return result;
} catch (e) {
if (!closed && this._closed) {
await new Promise(() => {});
}
throw e;
}
}
async _legacyCloseWrapper(onSucc, onErr, func) {
let wrapCallback = cb => result => {
try {
cb && cb(result);
} catch (e) {
this.logErrorAndCallOnError(e);
}
};
try {
wrapCallback(onSucc)(await func());
} catch (e) {
wrapCallback(onErr)(e);
}
}
/**
* An RTCConfiguration may look like this:
*
* { "iceServers": [ { urls: "stun:stun.example.org", },
* { url: "stun:stun.example.org", }, // deprecated version
* { urls: ["turn:turn1.x.org", "turn:turn2.x.org"],
* username:"jib", credential:"mypass"} ] }
*
* This function normalizes the structure of the input for rtcConfig.iceServers for us,
* so we test well-formed stun/turn urls before passing along to C++.
* msg - Error message to detail which array-entry failed, if any.
*/
_mustValidateRTCConfiguration({ iceServers }, msg) {
// Normalize iceServers input
iceServers.forEach(server => {
if (typeof server.urls === "string") {
server.urls = [server.urls];
} else if (!server.urls && server.url) {
// TODO: Remove support for legacy iceServer.url eventually (Bug 1116766)
server.urls = [server.url];
this.logWarning("RTCIceServer.url is deprecated! Use urls instead.");
}
});
let ios = Cc['@mozilla.org/network/io-service;1'].getService(Ci.nsIIOService);
let nicerNewURI = uriStr => {
try {
return ios.newURI(uriStr);
} catch (e if (e.result == Cr.NS_ERROR_MALFORMED_URI)) {
throw new this._win.DOMException(msg + " - malformed URI: " + uriStr,
"SyntaxError");
}
};
var stunServers = 0;
iceServers.forEach(({ urls, username, credential, credentialType }) => {
if (!urls) {
throw new this._win.DOMException(msg + " - missing urls", "InvalidAccessError");
}
urls.map(url => nicerNewURI(url)).forEach(({ scheme, spec }) => {
if (scheme in { turn:1, turns:1 }) {
if (username == undefined) {
throw new this._win.DOMException(msg + " - missing username: " + spec,
"InvalidAccessError");
}
if (credential == undefined) {
throw new this._win.DOMException(msg + " - missing credential: " + spec,
"InvalidAccessError");
}
if (credentialType != "password") {
this.logWarning("RTCConfiguration TURN credentialType \""+
credentialType +
"\" is not yet implemented. Treating as password."+
" https://bugzil.la/1247616");
}
this._hasTurnServer = true;
stunServers += 1;
} else if (scheme in { stun:1, stuns:1 }) {
this._hasStunServer = true;
stunServers += 1;
} else {
throw new this._win.DOMException(msg + " - improper scheme: " + scheme,
"SyntaxError");
}
if (scheme in { stuns:1, turns:1 }) {
this.logWarning(scheme.toUpperCase() + " is not yet supported.");
}
if (stunServers >= 5) {
this.logError("Using five or more STUN/TURN servers causes problems");
} else if (stunServers > 2) {
this.logWarning("Using more than two STUN/TURN servers slows down discovery");
}
});
});
}
// Ideally, this should be of the form _checkState(state),
// where the state is taken from an enumeration containing
// the valid peer connection states defined in the WebRTC
// spec. See Bug 831756.
_checkClosed() {
if (this._closed) {
throw new this._win.DOMException("Peer connection is closed",
"InvalidStateError");
}
}
dispatchEvent(event) {
// PC can close while events are firing if there is an async dispatch
// in c++ land. But let through "closed" signaling and ice connection events.
if (!this._closed || this._inClose) {
this.__DOM_IMPL__.dispatchEvent(event);
}
}
// Log error message to web console and window.onerror, if present.
logErrorAndCallOnError(e) {
this.logMsg(e.message, e.fileName, e.lineNumber, Ci.nsIScriptError.exceptionFlag);
// Safely call onerror directly if present (necessary for testing)
try {
if (typeof this._win.onerror === "function") {
this._win.onerror(e.message, e.fileName, e.lineNumber);
}
} catch(e) {
// If onerror itself throws, service it.
try {
this.logMsg(e.message, e.fileName, e.lineNumber, Ci.nsIScriptError.errorFlag);
} catch(e) {}
}
}
logError(msg) {
this.logStackMsg(msg, Ci.nsIScriptError.errorFlag);
}
logWarning(msg) {
this.logStackMsg(msg, Ci.nsIScriptError.warningFlag);
}
logStackMsg(msg, flag) {
let err = this._win.Error();
this.logMsg(msg, err.fileName, err.lineNumber, flag);
}
logMsg(msg, file, line, flag) {
return logMsg(msg, file, line, flag, this._winID);
}
getEH(type) {
return this.__DOM_IMPL__.getEventHandler(type);
}
setEH(type, handler) {
this.__DOM_IMPL__.setEventHandler(type, handler);
}
makeGetterSetterEH(name) {
Object.defineProperty(this, name,
{
get:function() { return this.getEH(name); },
set:function(h) { return this.setEH(name, h); }
});
}
makeLegacyGetterSetterEH(name, msg) {
Object.defineProperty(this, name,
{
get:function() { return this.getEH(name); },
set:function(h) {
this.logWarning(name + " is deprecated! " + msg);
return this.setEH(name, h);
}
});
}
createOffer(optionsOrOnSucc, onErr, options) {
// This entry-point handles both new and legacy call sig. Decipher which one
if (typeof optionsOrOnSucc == "function") {
return this._legacy(optionsOrOnSucc, onErr, () => this._createOffer(options));
}
return this._async(() => this._createOffer(optionsOrOnSucc));
}
async _createOffer(options) {
this._checkClosed();
let origin = Cu.getWebIDLCallerPrincipal().origin;
return await this._chain(async () => {
let haveAssertion;
if (this._localIdp.enabled) {
haveAssertion = this._getIdentityAssertion(origin);
}
await this._getPermission();
await this._certificateReady;
let sdp = await new Promise((resolve, reject) => {
this._onCreateOfferSuccess = resolve;
this._onCreateOfferFailure = reject;
this._impl.createOffer(options);
});
if (haveAssertion) {
await haveAssertion;
sdp = this._localIdp.addIdentityAttribute(sdp);
}
return Cu.cloneInto({ type: "offer", sdp }, this._win);
});
}
createAnswer(optionsOrOnSucc, onErr) {
// This entry-point handles both new and legacy call sig. Decipher which one
if (typeof optionsOrOnSucc == "function") {
return this._legacy(optionsOrOnSucc, onErr, () => this._createAnswer({}));
}
return this._async(() => this._createAnswer(optionsOrOnSucc));
}
async _createAnswer(options) {
this._checkClosed();
let origin = Cu.getWebIDLCallerPrincipal().origin;
return await this._chain(async () => {
// We give up line-numbers in errors by doing this here, but do all
// state-checks inside the chain, to support the legacy feature that
// callers don't have to wait for setRemoteDescription to finish.
if (!this.remoteDescription) {
throw new this._win.DOMException("setRemoteDescription not called",
"InvalidStateError");
}
if (this.remoteDescription.type != "offer") {
throw new this._win.DOMException("No outstanding offer",
"InvalidStateError");
}
let haveAssertion;
if (this._localIdp.enabled) {
haveAssertion = this._getIdentityAssertion(origin);
}
await this._getPermission();
await this._certificateReady;
let sdp = await new Promise((resolve, reject) => {
this._onCreateAnswerSuccess = resolve;
this._onCreateAnswerFailure = reject;
this._impl.createAnswer();
});
if (haveAssertion) {
await haveAssertion;
sdp = this._localIdp.addIdentityAttribute(sdp);
}
return Cu.cloneInto({ type: "answer", sdp }, this._win);
});
}
async _getPermission() {
if (!this._havePermission) {
let privileged = this._isChrome || AppConstants.MOZ_B2G ||
Services.prefs.getBoolPref("media.navigator.permission.disabled");
if (privileged) {
this._havePermission = Promise.resolve();
} else {
this._havePermission = new Promise((resolve, reject) => {
this._settlePermission = { allow: resolve, deny: reject };
let outerId = this._win.QueryInterface(Ci.nsIInterfaceRequestor).
getInterface(Ci.nsIDOMWindowUtils).outerWindowID;
let chrome = new CreateOfferRequest(outerId, this._winID,
this._globalPCListId, false);
let request = this._win.CreateOfferRequest._create(this._win, chrome);
Services.obs.notifyObservers(request, "PeerConnection:request", null);
});
}
}
return await this._havePermission;
}
setLocalDescription(desc, onSucc, onErr) {
return this._auto(onSucc, onErr, () => this._setLocalDescription(desc));
}
async _setLocalDescription({ type, sdp }) {
this._checkClosed();
this._localType = type;
let action = this._actions[type];
if (action === undefined) {
throw new this._win.DOMException(
"Invalid type " + type + " provided to setLocalDescription",
"InvalidParameterError");
}
if (action == Ci.IPeerConnection.kActionPRAnswer) {
throw new this._win.DOMException("pranswer not yet implemented",
"NotSupportedError");
}
if (!sdp && action != Ci.IPeerConnection.kActionRollback) {
throw new this._win.DOMException(
"Empty or null SDP provided to setLocalDescription",
"InvalidParameterError");
}
return await this._chain(async () => {
await this._getPermission();
await new Promise((resolve, reject) => {
this._onSetLocalDescriptionSuccess = resolve;
this._onSetLocalDescriptionFailure = reject;
this._impl.setLocalDescription(action, sdp);
});
});
}
async _validateIdentity(sdp, origin) {
let expectedIdentity;
// Only run a single identity verification at a time. We have to do this to
// avoid problems with the fact that identity validation doesn't block the
// resolution of setRemoteDescription().
let p = (async () => {
try {
await this._lastIdentityValidation;
let msg = await this._remoteIdp.verifyIdentityFromSDP(sdp, origin);
expectedIdentity = this._impl.peerIdentity;
// If this pc has an identity already, then the identity in sdp must match
if (expectedIdentity && (!msg || msg.identity !== expectedIdentity)) {
this.close();
throw new this._win.DOMException(
"Peer Identity mismatch, expected: " + expectedIdentity,
"IncompatibleSessionDescriptionError");
}
if (msg) {
// Set new identity and generate an event.
this._impl.peerIdentity = msg.identity;
this._resolvePeerIdentity(Cu.cloneInto({
idp: this._remoteIdp.provider,
name: msg.identity
}, this._win));
}
} catch(e) {
this._rejectPeerIdentity(e);
// If we don't expect a specific peer identity, failure to get a valid
// peer identity is not a terminal state, so replace the promise to
// allow another attempt.
if (!this._impl.peerIdentity) {
this._resetPeerIdentityPromise();
}
throw e;
}
})();
this._lastIdentityValidation = p.catch(() => {});
// Only wait for IdP validation if we need identity matching
if (expectedIdentity) {
await p;
}
}
setRemoteDescription(desc, onSucc, onErr) {
return this._auto(onSucc, onErr, () => this._setRemoteDescription(desc));
}
async _setRemoteDescription({ type, sdp }) {
this._checkClosed();
this._remoteType = type;
let action = this._actions[type];
if (action === undefined) {
throw new this._win.DOMException(
"Invalid type " + type + " provided to setRemoteDescription",
"InvalidParameterError");
}
if (action == Ci.IPeerConnection.kActionPRAnswer) {
throw new this._win.DOMException("pranswer not yet implemented",
"NotSupportedError");
}
if (!sdp && type != "rollback") {
throw new this._win.DOMException(
"Empty or null SDP provided to setRemoteDescription",
"InvalidParameterError");
}
// Get caller's origin before hitting the promise chain
let origin = Cu.getWebIDLCallerPrincipal().origin;
return await this._chain(async () => {
let haveSetRemote = (async () => {
await this._getPermission();
await new Promise((resolve, reject) => {
this._onSetRemoteDescriptionSuccess = resolve;
this._onSetRemoteDescriptionFailure = reject;
this._impl.setRemoteDescription(action, sdp);
});
this._updateCanTrickle();
})();
if (action != Ci.IPeerConnection.kActionRollback) {
// Do setRemoteDescription and identity validation in parallel
await this._validateIdentity(sdp, origin);
}
await haveSetRemote;
});
}
setIdentityProvider(provider, protocol, username) {
this._checkClosed();
this._localIdp.setIdentityProvider(provider, protocol, username);
}
async _getIdentityAssertion(origin) {
await this._certificateReady;
return await this._localIdp.getIdentityAssertion(this._impl.fingerprint, origin);
}
getIdentityAssertion() {
this._checkClosed();
let origin = Cu.getWebIDLCallerPrincipal().origin;
return this._win.Promise.resolve(this._chain(() =>
this._getIdentityAssertion(origin)));
}
get canTrickleIceCandidates() {
return this._canTrickle;
}
_updateCanTrickle() {
let containsTrickle = section => {
let lines = section.toLowerCase().split(/(?:\r\n?|\n)/);
return lines.some(line => {
let prefix = "a=ice-options:";
if (line.substring(0, prefix.length) !== prefix) {
return false;
}
let tokens = line.substring(prefix.length).split(" ");
return tokens.some(x => x === "trickle");
});
};
let desc = null;
try {
// The getter for remoteDescription can throw if the pc is closed.
desc = this.remoteDescription;
} catch (e) {}
if (!desc) {
this._canTrickle = null;
return;
}
let sections = desc.sdp.split(/(?:\r\n?|\n)m=/);
let topSection = sections.shift();
this._canTrickle =
containsTrickle(topSection) || sections.every(containsTrickle);
}
// TODO: Implement processing for end-of-candidates (bug 1318167)
addIceCandidate(cand, onSucc, onErr) {
return this._auto(onSucc, onErr, () => cand && this._addIceCandidate(cand));
}
async _addIceCandidate({ candidate, sdpMid, sdpMLineIndex }) {
this._checkClosed();
if (sdpMid === null && sdpMLineIndex === null) {
throw new this._win.DOMException(
"Invalid candidate (both sdpMid and sdpMLineIndex are null).",
"TypeError");
}
return await this._chain(() => new Promise((resolve, reject) => {
this._onAddIceCandidateSuccess = resolve;
this._onAddIceCandidateError = reject;
this._impl.addIceCandidate(candidate, sdpMid || "", sdpMLineIndex);
}));
}
addStream(stream) {
stream.getTracks().forEach(track => this.addTrack(track, stream));
}
addTrack(track, stream) {
if (stream.currentTime === undefined) {
throw new this._win.DOMException("invalid stream.", "InvalidParameterError");
}
this._checkClosed();
this._senders.forEach(sender => {
if (sender.track == track) {
throw new this._win.DOMException("already added.",
"InvalidParameterError");
}
});
this._impl.addTrack(track, stream);
let sender = this._win.RTCRtpSender._create(this._win,
new RTCRtpSender(this, track,
stream));
this._senders.push(sender);
return sender;
}
removeTrack(sender) {
this._checkClosed();
var i = this._senders.indexOf(sender);
if (i >= 0) {
this._senders.splice(i, 1);
this._impl.removeTrack(sender.track); // fires negotiation needed
}
}
_insertDTMF(sender, tones, duration, interToneGap) {
return this._impl.insertDTMF(sender.__DOM_IMPL__, tones, duration, interToneGap);
}
_getDTMFToneBuffer(sender) {
return this._impl.getDTMFToneBuffer(sender.__DOM_IMPL__);
}
async _replaceTrack(sender, withTrack) {
this._checkClosed();
return await this._chain(() => new Promise((resolve, reject) => {
this._onReplaceTrackSender = sender;
this._onReplaceTrackWithTrack = withTrack;
this._onReplaceTrackSuccess = resolve;
this._onReplaceTrackFailure = reject;
this._impl.replaceTrack(sender.track, withTrack);
}));
}
_setParameters({ track }, parameters) {
if (!Services.prefs.getBoolPref("media.peerconnection.simulcast")) {
return;
}
// validate parameters input
var encodings = parameters.encodings || [];
encodings.reduce((uniqueRids, { rid, scaleResolutionDownBy }) => {
if (scaleResolutionDownBy < 1.0) {
throw new this._win.RangeError("scaleResolutionDownBy must be >= 1.0");
}
if (!rid && encodings.length > 1) {
throw new this._win.DOMException("Missing rid", "TypeError");
}
if (uniqueRids[rid]) {
throw new this._win.DOMException("Duplicate rid", "TypeError");
}
uniqueRids[rid] = true;
return uniqueRids;
}, {});
this._impl.setParameters(track, parameters);
}
_getParameters({ track }) {
if (!Services.prefs.getBoolPref("media.peerconnection.simulcast")) {
return;
}
return this._impl.getParameters(track);
}
close() {
if (this._closed) {
return;
}
this._closed = true;
this._inClose = true;
this.changeIceConnectionState("closed");
this._localIdp.close();
this._remoteIdp.close();
this._impl.close();
this._inClose = false;
}
getLocalStreams() {
this._checkClosed();
return this._impl.getLocalStreams();
}
getRemoteStreams() {
this._checkClosed();
return this._impl.getRemoteStreams();
}
getSenders() {
return this._senders;
}
getReceivers() {
return this._receivers;
}
mozSelectSsrc(receiver, ssrcIndex) {
this._impl.selectSsrc(receiver.track, ssrcIndex);
}
get localDescription() {
this._checkClosed();
let sdp = this._impl.localDescription;
if (sdp.length == 0) {
return null;
}
return new this._win.RTCSessionDescription({ type: this._localType, sdp });
}
get remoteDescription() {
this._checkClosed();
let sdp = this._impl.remoteDescription;
if (sdp.length == 0) {
return null;
}
return new this._win.RTCSessionDescription({ type: this._remoteType, sdp });
}
get peerIdentity() { return this._peerIdentity; }
get idpLoginUrl() { return this._localIdp.idpLoginUrl; }
get id() { return this._impl.id; }
set id(s) { this._impl.id = s; }
get iceGatheringState() { return this._iceGatheringState; }
get iceConnectionState() { return this._iceConnectionState; }
get signalingState() {
// checking for our local pc closed indication
// before invoking the pc methods.
if (this._closed) {
return "closed";
}
return {
"SignalingInvalid": "",
"SignalingStable": "stable",
"SignalingHaveLocalOffer": "have-local-offer",
"SignalingHaveRemoteOffer": "have-remote-offer",
"SignalingHaveLocalPranswer": "have-local-pranswer",
"SignalingHaveRemotePranswer": "have-remote-pranswer",
"SignalingClosed": "closed"
}[this._impl.signalingState];
}
changeIceGatheringState(state) {
this._iceGatheringState = state;
_globalPCList.notifyLifecycleObservers(this, "icegatheringstatechange");
this.dispatchEvent(new this._win.Event("icegatheringstatechange"));
}
changeIceConnectionState(state) {
if (state != this._iceConnectionState) {
this._iceConnectionState = state;
_globalPCList.notifyLifecycleObservers(this, "iceconnectionstatechange");
this.dispatchEvent(new this._win.Event("iceconnectionstatechange"));
}
}
getStats(selector, onSucc, onErr) {
let isLegacy = (typeof onSucc) == "function";
if (isLegacy &&
this._warnDeprecatedStatsCallbacksNullable.warn) {
this._warnDeprecatedStatsCallbacksNullable.warn();
this._warnDeprecatedStatsCallbacksNullable.warn = null;
}
return this._auto(onSucc, onErr, () => this._getStats(selector, isLegacy));
}
async _getStats(selector, isLegacy) {
// getStats is allowed even in closed state.
return await this._chain(() => new Promise((resolve, reject) => {
this._onGetStatsIsLegacy = isLegacy;
this._onGetStatsSuccess = resolve;
this._onGetStatsFailure = reject;
this._impl.getStats(selector);
}));
}
createDataChannel(label, {
maxRetransmits, ordered, negotiated, id = 0xFFFF,
maxRetransmitTime, maxPacketLifeTime = maxRetransmitTime,
protocol
} = {}) {
this._checkClosed();
if (maxRetransmitTime !== undefined) {
this.logWarning("Use maxPacketLifeTime instead of deprecated maxRetransmitTime which will stop working soon in createDataChannel!");
}
if (maxPacketLifeTime !== undefined && maxRetransmits !== undefined) {
throw new this._win.DOMException(
"Both maxPacketLifeTime and maxRetransmits cannot be provided",
"InvalidParameterError");
}
// Must determine the type where we still know if entries are undefined.
let type;
if (maxPacketLifeTime) {
type = Ci.IPeerConnection.kDataChannelPartialReliableTimed;
} else if (maxRetransmits) {
type = Ci.IPeerConnection.kDataChannelPartialReliableRexmit;
} else {
type = Ci.IPeerConnection.kDataChannelReliable;
}
// Synchronous since it doesn't block.
return this._impl.createDataChannel(label, protocol, type, ordered,
maxPacketLifeTime, maxRetransmits,
negotiated, id);
}
}
setupPrototype(RTCPeerConnection, {
classID: PC_CID,
contractID: PC_CONTRACT,
QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports,
Ci.nsIDOMGlobalPropertyInitializer]),
_actions: {
offer: Ci.IPeerConnection.kActionOffer,
answer: Ci.IPeerConnection.kActionAnswer,
pranswer: Ci.IPeerConnection.kActionPRAnswer,
rollback: Ci.IPeerConnection.kActionRollback,
answer: Ci.IPeerConnection.kActionAnswer,
},
});
// This is a separate class because we don't want to expose it to DOM.
class PeerConnectionObserver {
init(win) {
this._win = win;
}
__init(dompc) {
this._dompc = dompc._innerObject;
}
newError(message, code) {
// These strings must match those defined in the WebRTC spec.
const reasonName = [
"",
"InternalError",
"InvalidCandidateError",
"InvalidParameterError",
"InvalidStateError",
"InvalidSessionDescriptionError",
"IncompatibleSessionDescriptionError",
"InternalError",
"IncompatibleMediaStreamTrackError",
"InternalError"
];
let name = reasonName[Math.min(code, reasonName.length - 1)];
return new this._dompc._win.DOMException(message, name);
}
dispatchEvent(event) {
this._dompc.dispatchEvent(event);
}
onCreateOfferSuccess(sdp) {
this._dompc._onCreateOfferSuccess(sdp);
}
onCreateOfferError(code, message) {
this._dompc._onCreateOfferFailure(this.newError(message, code));
}
onCreateAnswerSuccess(sdp) {
this._dompc._onCreateAnswerSuccess(sdp);
}
onCreateAnswerError(code, message) {
this._dompc._onCreateAnswerFailure(this.newError(message, code));
}
onSetLocalDescriptionSuccess() {
this._dompc._onSetLocalDescriptionSuccess();
}
onSetRemoteDescriptionSuccess() {
this._dompc._onSetRemoteDescriptionSuccess();
}
onSetLocalDescriptionError(code, message) {
this._localType = null;
this._dompc._onSetLocalDescriptionFailure(this.newError(message, code));
}
onSetRemoteDescriptionError(code, message) {
this._remoteType = null;
this._dompc._onSetRemoteDescriptionFailure(this.newError(message, code));
}
onAddIceCandidateSuccess() {
this._dompc._onAddIceCandidateSuccess();
}
onAddIceCandidateError(code, message) {
this._dompc._onAddIceCandidateError(this.newError(message, code));
}
onIceCandidate(sdpMLineIndex, sdpMid, candidate) {
let win = this._dompc._win;
if (candidate) {
if (candidate.includes(" typ relay ")) {
this._dompc._iceGatheredRelayCandidates = true;
}
candidate = new win.RTCIceCandidate({ candidate, sdpMid, sdpMLineIndex });
} else {
candidate = null;
}
this.dispatchEvent(new win.RTCPeerConnectionIceEvent("icecandidate",
{ candidate }));
}
onNegotiationNeeded() {
this.dispatchEvent(new this._win.Event("negotiationneeded"));
}
// This method is primarily responsible for updating iceConnectionState.
// This state is defined in the WebRTC specification as follows:
//
// iceConnectionState:
// -------------------
// new Any of the RTCIceTransports are in the new state and none
// of them are in the checking, failed or disconnected state.
//
// checking Any of the RTCIceTransports are in the checking state and
// none of them are in the failed or disconnected state.
//
// connected All RTCIceTransports are in the connected, completed or
// closed state and at least one of them is in the connected
// state.
//
// completed All RTCIceTransports are in the completed or closed state
// and at least one of them is in the completed state.
//
// failed Any of the RTCIceTransports are in the failed state.
//
// disconnected Any of the RTCIceTransports are in the disconnected state
// and none of them are in the failed state.
//
// closed All of the RTCIceTransports are in the closed state.
handleIceConnectionStateChange(iceConnectionState) {
let pc = this._dompc;
if (pc.iceConnectionState === iceConnectionState) {
return;
}
if (pc.iceConnectionState === 'new') {
var checking_histogram = Services.telemetry.getHistogramById("WEBRTC_ICE_CHECKING_RATE");
if (iceConnectionState === 'checking') {
checking_histogram.add(true);
} else if (iceConnectionState === 'failed') {
checking_histogram.add(false);
}
} else if (pc.iceConnectionState === 'checking') {
var success_histogram = Services.telemetry.getHistogramById("WEBRTC_ICE_SUCCESS_RATE");
if (iceConnectionState === 'completed' ||
iceConnectionState === 'connected') {
success_histogram.add(true);
} else if (iceConnectionState === 'failed') {
success_histogram.add(false);
}
}
if (iceConnectionState === 'failed') {
if (!pc._hasStunServer) {
pc.logError("ICE failed, add a STUN server and see about:webrtc for more details");
}
else if (!pc._hasTurnServer) {
pc.logError("ICE failed, add a TURN server and see about:webrtc for more details");
}
else if (pc._hasTurnServer && !pc._iceGatheredRelayCandidates) {
pc.logError("ICE failed, your TURN server appears to be broken, see about:webrtc for more details");
}
else {
pc.logError("ICE failed, see about:webrtc for more details");
}
}
pc.changeIceConnectionState(iceConnectionState);
}
// This method is responsible for updating iceGatheringState. This
// state is defined in the WebRTC specification as follows:
//
// iceGatheringState:
// ------------------
// new The object was just created, and no networking has occurred
// yet.
//
// gathering The ICE agent is in the process of gathering candidates for
// this RTCPeerConnection.
//
// complete The ICE agent has completed gathering. Events such as adding
// a new interface or a new TURN server will cause the state to
// go back to gathering.
//
handleIceGatheringStateChange(gatheringState) {
let pc = this._dompc;
if (pc.iceGatheringState === gatheringState) {
return;
}
pc.changeIceGatheringState(gatheringState);
}
onStateChange(state) {
switch (state) {
case "SignalingState":
this.dispatchEvent(new this._win.Event("signalingstatechange"));
break;
case "IceConnectionState":
this.handleIceConnectionStateChange(this._dompc._pc.iceConnectionState);
break;
case "IceGatheringState":
this.handleIceGatheringStateChange(this._dompc._pc.iceGatheringState);
break;
case "SdpState":
// No-op
break;
case "ReadyState":
// No-op
break;
case "SipccState":
// No-op
break;
default:
this._dompc.logWarning("Unhandled state type: " + state);
break;
}
}
onGetStatsSuccess(dict) {
let pc = this._dompc;
let chromeobj = new RTCStatsReport(pc._win, dict);
let webidlobj = pc._win.RTCStatsReport._create(pc._win, chromeobj);
chromeobj.makeStatsPublic(pc._warnDeprecatedStatsCallbacksNullable &&
pc._warnDeprecatedStatsAccessNullable,
pc._onGetStatsIsLegacy);
pc._onGetStatsSuccess(webidlobj);
}
onGetStatsError(code, message) {
this._dompc._onGetStatsFailure(this.newError(message, code));
}
onAddStream(stream) {
let ev = new this._dompc._win.MediaStreamEvent("addstream", { stream });
this.dispatchEvent(ev);
}
onRemoveStream(stream) {
this.dispatchEvent(new this._dompc._win.MediaStreamEvent("removestream",
{ stream }));
}
onAddTrack(track, streams) {
let pc = this._dompc;
let receiver = pc._win.RTCRtpReceiver._create(pc._win,
new RTCRtpReceiver(this,
track));
pc._receivers.push(receiver);
let ev = new pc._win.RTCTrackEvent("track", { receiver, track, streams });
this.dispatchEvent(ev);
// Fire legacy event as well for a little bit.
ev = new pc._win.MediaStreamTrackEvent("addtrack", { track });
this.dispatchEvent(ev);
}
onRemoveTrack(track) {
let pc = this._dompc;
let i = pc._receivers.findIndex(receiver => receiver.track == track);
if (i >= 0) {
pc._receivers.splice(i, 1);
}
}
onReplaceTrackSuccess() {
var pc = this._dompc;
pc._onReplaceTrackSender.track = pc._onReplaceTrackWithTrack;
pc._onReplaceTrackWithTrack = null;
pc._onReplaceTrackSender = null;
pc._onReplaceTrackSuccess();
}
onReplaceTrackError(code, message) {
var pc = this._dompc;
pc._onReplaceTrackWithTrack = null;
pc._onReplaceTrackSender = null;
pc._onReplaceTrackFailure(this.newError(message, code));
}
notifyDataChannel(channel) {
this.dispatchEvent(new this._dompc._win.RTCDataChannelEvent("datachannel",
{ channel }));
}
onDTMFToneChange(trackId, tone) {
var pc = this._dompc;
var sender = pc._senders.find(({track}) => track.id == trackId);
sender.dtmf.dispatchEvent(new pc._win.RTCDTMFToneChangeEvent("tonechange",
{ tone }));
}
}
setupPrototype(PeerConnectionObserver, {
classID: PC_OBS_CID,
contractID: PC_OBS_CONTRACT,
QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports,
Ci.nsIDOMGlobalPropertyInitializer])
});
class RTCPeerConnectionStatic {
init(win) {
this._winID = win.QueryInterface(Ci.nsIInterfaceRequestor)
.getInterface(Ci.nsIDOMWindowUtils).currentInnerWindowID;
}
registerPeerConnectionLifecycleCallback(cb) {
_globalPCList._registerPeerConnectionLifecycleCallback(this._winID, cb);
}
}
setupPrototype(RTCPeerConnectionStatic, {
classID: PC_STATIC_CID,
contractID: PC_STATIC_CONTRACT,
QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports,
Ci.nsIDOMGlobalPropertyInitializer])
});
class RTCDTMFSender {
constructor(sender) {
this._sender = sender;
}
get toneBuffer() {
return this._sender._pc._getDTMFToneBuffer(this._sender);
}
get ontonechange() {
return this.__DOM_IMPL__.getEventHandler("ontonechange");
}
set ontonechange(handler) {
this.__DOM_IMPL__.setEventHandler("ontonechange", handler);
}
insertDTMF(tones, duration, interToneGap) {
this._sender._pc._checkClosed();
if (this._sender._pc._senders.indexOf(this._sender.__DOM_IMPL__) == -1) {
throw new this._sender._pc._win.DOMException("RTCRtpSender is stopped",
"InvalidStateError");
}
duration = Math.max(40, Math.min(duration, 6000));
if (interToneGap < 30) interToneGap = 30;
tones = tones.toUpperCase();
if (tones.match(/[^0-9A-D#*,]/)) {
throw new this._sender._pc._win.DOMException("Invalid DTMF characters",
"InvalidCharacterError");
}
this._sender._pc._insertDTMF(this._sender, tones, duration, interToneGap);
}
}
setupPrototype(RTCDTMFSender, {
classID: PC_DTMF_SENDER_CID,
contractID: PC_DTMF_SENDER_CONTRACT,
QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports])
});
class RTCRtpSender {
constructor(pc, track, stream) {
let dtmf = pc._win.RTCDTMFSender._create(pc._win, new RTCDTMFSender(this));
Object.assign(this, { _pc: pc, track, _stream: stream, dtmf });
}
replaceTrack(withTrack) {
return this._pc._async(() => this._pc._replaceTrack(this, withTrack));
}
setParameters(parameters) {
return this._pc._win.Promise.resolve()
.then(() => this._pc._setParameters(this, parameters));
}
getParameters() {
return this._pc._getParameters(this);
}
}
setupPrototype(RTCRtpSender, {
classID: PC_SENDER_CID,
contractID: PC_SENDER_CONTRACT,
QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports])
});
class RTCRtpReceiver {
constructor(pc, track) {
Object.assign(this, { _pc: pc, track });
}
}
setupPrototype(RTCRtpReceiver, {
classID: PC_RECEIVER_CID,
contractID: PC_RECEIVER_CONTRACT,
QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports])
});
class CreateOfferRequest {
constructor(windowID, innerWindowID, callID, isSecure) {
Object.assign(this, { windowID, innerWindowID, callID, isSecure });
}
}
setupPrototype(CreateOfferRequest, {
classID: PC_COREQUEST_CID,
contractID: PC_COREQUEST_CONTRACT,
QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports])
});
this.NSGetFactory = XPCOMUtils.generateNSGetFactory(
[GlobalPCList,
RTCDTMFSender,
RTCIceCandidate,
RTCSessionDescription,
RTCPeerConnection,
RTCPeerConnectionStatic,
RTCRtpReceiver,
RTCRtpSender,
RTCStatsReport,
PeerConnectionObserver,
CreateOfferRequest]
);
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