зеркало из https://github.com/mozilla/gecko-dev.git
2350 строки
65 KiB
JavaScript
2350 строки
65 KiB
JavaScript
/* 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 { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
|
|
ChromeUtils.defineModuleGetter(
|
|
this,
|
|
"PeerConnectionIdp",
|
|
"resource://gre/modules/media/PeerConnectionIdp.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_STATIC_CONTRACT = "@mozilla.org/dom/peerconnectionstatic;1";
|
|
const PC_SENDER_CONTRACT = "@mozilla.org/dom/rtpsender;1";
|
|
const PC_TRANSCEIVER_CONTRACT = "@mozilla.org/dom/rtptransceiver;1";
|
|
const PC_COREQUEST_CONTRACT = "@mozilla.org/dom/createofferrequest;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_STATIC_CID = Components.ID("{0fb47c47-a205-4583-a9fc-cbadf8c95880}");
|
|
const PC_SENDER_CID = Components.ID("{4fff5d46-d827-4cd4-a970-8fd53977440e}");
|
|
const PC_TRANSCEIVER_CID = Components.ID(
|
|
"{09475754-103a-41f5-a2d0-e1f27eb0b537}"
|
|
);
|
|
const PC_COREQUEST_CID = Components.ID(
|
|
"{74b2122d-65a8-4824-aa9e-3d664cb75dc2}"
|
|
);
|
|
|
|
function logMsg(msg, file, line, flag, winID) {
|
|
let scriptErrorClass = Cc["@mozilla.org/scripterror;1"];
|
|
let scriptError = scriptErrorClass.createInstance(Ci.nsIScriptError);
|
|
scriptError.initWithWindowID(
|
|
`WebRTC: ${msg}`,
|
|
file,
|
|
null,
|
|
line,
|
|
0,
|
|
flag,
|
|
"content javascript",
|
|
winID
|
|
);
|
|
Services.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 (Services.cpmm) {
|
|
Services.cpmm.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;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
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];
|
|
}
|
|
}
|
|
|
|
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._suppressEvents = true;
|
|
pc.close();
|
|
}
|
|
};
|
|
|
|
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: ChromeUtils.generateQI([
|
|
"nsIObserver",
|
|
"nsISupportsWeakReference",
|
|
]),
|
|
classID: PC_MANAGER_CID,
|
|
_xpcom_factory: {
|
|
createInstance(outer, iid) {
|
|
if (outer) {
|
|
throw Components.Exception("", Cr.NS_ERROR_NO_AGGREGATION);
|
|
}
|
|
return _globalPCList.QueryInterface(iid);
|
|
},
|
|
},
|
|
});
|
|
|
|
var _globalPCList = new GlobalPCList();
|
|
|
|
class RTCIceCandidate {
|
|
init(win) {
|
|
this._win = win;
|
|
}
|
|
|
|
__init(dict) {
|
|
if (dict.sdpMid == null && dict.sdpMLineIndex == null) {
|
|
throw new this._win.TypeError(
|
|
"Either sdpMid or sdpMLineIndex must be specified"
|
|
);
|
|
}
|
|
Object.assign(this, dict);
|
|
}
|
|
}
|
|
setupPrototype(RTCIceCandidate, {
|
|
classID: PC_ICE_CID,
|
|
contractID: PC_ICE_CONTRACT,
|
|
QueryInterface: ChromeUtils.generateQI(["nsIDOMGlobalPropertyInitializer"]),
|
|
});
|
|
|
|
class RTCSessionDescription {
|
|
init(win) {
|
|
this._win = win;
|
|
this._winID = this._win.windowGlobalChild.innerWindowId;
|
|
}
|
|
|
|
__init({ type, sdp }) {
|
|
if (!type) {
|
|
throw new this._win.TypeError(
|
|
"Missing required 'type' member of RTCSessionDescriptionInit"
|
|
);
|
|
}
|
|
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: ChromeUtils.generateQI(["nsIDOMGlobalPropertyInitializer"]),
|
|
});
|
|
|
|
// Records PC related telemetry
|
|
class PeerConnectionTelemetry {
|
|
// ICE connection state enters connected or completed.
|
|
recordConnected() {
|
|
Services.telemetry.scalarAdd("webrtc.peerconnection.connected", 1);
|
|
this.recordConnected = () => {};
|
|
}
|
|
// DataChannel is created
|
|
_recordDataChannelCreated() {
|
|
Services.telemetry.scalarAdd(
|
|
"webrtc.peerconnection.datachannel_created",
|
|
1
|
|
);
|
|
this._recordDataChannelCreated = () => {};
|
|
}
|
|
// DataChannel initialized with maxRetransmitTime
|
|
_recordMaxRetransmitTime(maxRetransmitTime) {
|
|
if (maxRetransmitTime === undefined) {
|
|
return false;
|
|
}
|
|
Services.telemetry.scalarAdd(
|
|
"webrtc.peerconnection.datachannel_max_retx_used",
|
|
1
|
|
);
|
|
this._recordMaxRetransmitTime = () => true;
|
|
return true;
|
|
}
|
|
// DataChannel initialized with maxPacketLifeTime
|
|
_recordMaxPacketLifeTime(maxPacketLifeTime) {
|
|
if (maxPacketLifeTime === undefined) {
|
|
return false;
|
|
}
|
|
Services.telemetry.scalarAdd(
|
|
"webrtc.peerconnection.datachannel_max_life_used",
|
|
1
|
|
);
|
|
this._recordMaxPacketLifeTime = () => true;
|
|
return true;
|
|
}
|
|
// DataChannel initialized
|
|
recordDataChannelInit(maxRetransmitTime, maxPacketLifeTime) {
|
|
const retxUsed = this._recordMaxRetransmitTime(maxRetransmitTime);
|
|
if (this._recordMaxPacketLifeTime(maxPacketLifeTime) && retxUsed) {
|
|
Services.telemetry.scalarAdd(
|
|
"webrtc.peerconnection.datachannel_max_retx_and_life_used",
|
|
1
|
|
);
|
|
this.recordDataChannelInit = () => {};
|
|
}
|
|
this._recordDataChannelCreated();
|
|
}
|
|
}
|
|
|
|
class RTCPeerConnection {
|
|
constructor() {
|
|
this._transceivers = [];
|
|
|
|
this._pc = null;
|
|
this._closed = false;
|
|
|
|
// 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;
|
|
this._localUfragsToReplace = new Set();
|
|
|
|
// So we can record telemetry on state transitions
|
|
this._iceConnectionState = "new";
|
|
|
|
this._hasStunServer = this._hasTurnServer = false;
|
|
this._iceGatheredRelayCandidates = false;
|
|
// Records telemetry
|
|
this._pcTelemetry = new PeerConnectionTelemetry();
|
|
}
|
|
|
|
init(win) {
|
|
this._win = win;
|
|
}
|
|
|
|
__init(rtcConfig) {
|
|
this._winID = this._win.windowGlobalChild.innerWindowId;
|
|
// 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";
|
|
}
|
|
if ("sdpSemantics" in rtcConfig) {
|
|
if (rtcConfig.sdpSemantics == "plan-b") {
|
|
this.logWarning(
|
|
`Outdated and non-standard {sdpSemantics: "plan-b"} is not ` +
|
|
`supported! WebRTC may be unreliable. Please update code to ` +
|
|
`follow standard "unified-plan".`
|
|
);
|
|
}
|
|
}
|
|
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"
|
|
);
|
|
}
|
|
|
|
let certificates = rtcConfig.certificates || [];
|
|
|
|
if (certificates.some(c => c.expires <= Date.now())) {
|
|
throw new this._win.DOMException(
|
|
"Unable to create RTCPeerConnection with an expired certificate",
|
|
"InvalidAccessError"
|
|
);
|
|
}
|
|
|
|
// TODO(bug 1531875): Check origin of certs
|
|
|
|
// TODO(bug 1176518): Remove this code once we support multiple certs
|
|
let certificate;
|
|
if (certificates.length == 1) {
|
|
certificate = certificates[0];
|
|
} else if (certificates.length) {
|
|
throw new this._win.DOMException(
|
|
"RTCPeerConnection does not currently support multiple certificates",
|
|
"NotSupportedError"
|
|
);
|
|
}
|
|
|
|
this._documentPrincipal = Cu.getWebIDLCallerPrincipal();
|
|
|
|
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("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._operations = [];
|
|
this._updateNegotiationNeededOnEmptyChain = false;
|
|
|
|
this.__DOM_IMPL__._innerObject = this;
|
|
const observer = new this._win.PeerConnectionObserver(this.__DOM_IMPL__);
|
|
|
|
// Add a reference to the PeerConnection to global list (before init).
|
|
_globalPCList.addPC(this);
|
|
|
|
this._impl.initialize(
|
|
observer,
|
|
this._win,
|
|
rtcConfig,
|
|
Services.tm.currentThread
|
|
);
|
|
|
|
this._certificateReady = this._initCertificate(certificate);
|
|
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() {
|
|
const config = Object.assign({}, this._config);
|
|
delete config.sdpSemantics;
|
|
return config;
|
|
}
|
|
|
|
async _initCertificate(certificate) {
|
|
if (!certificate) {
|
|
certificate = await this._win.RTCPeerConnection.generateCertificate({
|
|
name: "ECDSA",
|
|
namedCurve: "P-256",
|
|
});
|
|
}
|
|
// Is the PC still around after the await?
|
|
if (!this._closed) {
|
|
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.
|
|
|
|
_chain(operation) {
|
|
let resolveP, rejectP;
|
|
const p = new Promise((r, e) => {
|
|
resolveP = r;
|
|
rejectP = e;
|
|
});
|
|
this._operations.push(() => {
|
|
operation().then(resolveP, rejectP);
|
|
const doNextOperation = () => {
|
|
if (this._closed) {
|
|
return;
|
|
}
|
|
this._operations.shift();
|
|
if (this._operations.length) {
|
|
this._operations[0]();
|
|
} else if (this._updateNegotiationNeededOnEmptyChain) {
|
|
this._updateNegotiationNeededOnEmptyChain = false;
|
|
this.updateNegotiationNeeded();
|
|
}
|
|
};
|
|
p.then(doNextOperation, doNextOperation);
|
|
});
|
|
if (this._operations.length == 1) {
|
|
this._operations[0]();
|
|
}
|
|
return 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);
|
|
}
|
|
}
|
|
|
|
// This implements the fairly common "Queue a task" logic
|
|
async _queueTaskWithClosedCheck(func) {
|
|
const pc = this;
|
|
return new this._win.Promise((resolve, reject) => {
|
|
Services.tm.dispatchToMainThread({
|
|
run() {
|
|
try {
|
|
if (!pc._closed) {
|
|
func();
|
|
resolve();
|
|
}
|
|
} catch (e) {
|
|
reject(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 nicerNewURI = uriStr => {
|
|
try {
|
|
return Services.io.newURI(uriStr);
|
|
} catch (e) {
|
|
if (e.result == Cr.NS_ERROR_MALFORMED_URI) {
|
|
throw new this._win.DOMException(
|
|
`${msg} - malformed URI: ${uriStr}`,
|
|
"SyntaxError"
|
|
);
|
|
}
|
|
throw e;
|
|
}
|
|
};
|
|
|
|
var stunServers = 0;
|
|
|
|
iceServers.forEach(({ urls, username, credential, credentialType }) => {
|
|
if (!urls) {
|
|
// TODO: Remove once url is deprecated (Bug 1369563)
|
|
throw new this._win.TypeError(
|
|
"Missing required 'urls' member of RTCIceServer"
|
|
);
|
|
}
|
|
if (urls.length == 0) {
|
|
throw new this._win.DOMException(
|
|
`${msg} - urls is empty`,
|
|
"SyntaxError"
|
|
);
|
|
}
|
|
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: ${spec}`,
|
|
"InvalidAccessError"
|
|
);
|
|
}
|
|
if (username.length > 512) {
|
|
throw new this._win.DOMException(
|
|
`${msg} - username longer then 512 bytes: ${username}`,
|
|
"InvalidAccessError"
|
|
);
|
|
}
|
|
if (credential == undefined) {
|
|
throw new this._win.DOMException(
|
|
`${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 }) {
|
|
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._suppressEvents) {
|
|
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.errorFlag
|
|
);
|
|
|
|
// 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() {
|
|
return this.getEH(name);
|
|
},
|
|
set(h) {
|
|
this.setEH(name, h);
|
|
},
|
|
});
|
|
}
|
|
|
|
makeLegacyGetterSetterEH(name, msg) {
|
|
Object.defineProperty(this, name, {
|
|
get() {
|
|
return this.getEH(name);
|
|
},
|
|
set(h) {
|
|
this.logWarning(name + " is deprecated! " + msg);
|
|
this.setEH(name, h);
|
|
},
|
|
});
|
|
}
|
|
|
|
createOffer(optionsOrOnSucc, onErr, options) {
|
|
let onSuccess = null;
|
|
if (typeof optionsOrOnSucc == "function") {
|
|
onSuccess = optionsOrOnSucc;
|
|
} else {
|
|
options = optionsOrOnSucc;
|
|
}
|
|
// This entry-point handles both new and legacy call sig. Decipher which one
|
|
if (onSuccess) {
|
|
return this._legacy(onSuccess, onErr, () => this._createOffer(options));
|
|
}
|
|
return this._async(() => this._createOffer(options));
|
|
}
|
|
|
|
// Ensures that we have at least one transceiver of |kind| that is
|
|
// configured to receive. It will create one if necessary.
|
|
_ensureOfferToReceive(kind) {
|
|
let hasRecv = this._transceivers.some(
|
|
transceiver =>
|
|
transceiver.getKind() == kind &&
|
|
(transceiver.direction == "sendrecv" ||
|
|
transceiver.direction == "recvonly") &&
|
|
!transceiver.stopped
|
|
);
|
|
|
|
if (!hasRecv) {
|
|
this._addTransceiverNoEvents(kind, { direction: "recvonly" });
|
|
}
|
|
}
|
|
|
|
// Handles offerToReceiveAudio/Video
|
|
_ensureTransceiversForOfferToReceive(options) {
|
|
if (options.offerToReceiveAudio) {
|
|
this._ensureOfferToReceive("audio");
|
|
}
|
|
|
|
if (options.offerToReceiveVideo) {
|
|
this._ensureOfferToReceive("video");
|
|
}
|
|
|
|
this._transceivers
|
|
.filter(transceiver => {
|
|
return (
|
|
(options.offerToReceiveVideo === false &&
|
|
transceiver.receiver.track.kind == "video") ||
|
|
(options.offerToReceiveAudio === false &&
|
|
transceiver.receiver.track.kind == "audio")
|
|
);
|
|
})
|
|
.forEach(transceiver => {
|
|
if (transceiver.direction == "sendrecv") {
|
|
transceiver.setDirectionInternal("sendonly");
|
|
} else if (transceiver.direction == "recvonly") {
|
|
transceiver.setDirectionInternal("inactive");
|
|
}
|
|
});
|
|
}
|
|
|
|
_createOffer(options) {
|
|
this._checkClosed();
|
|
this._ensureTransceiversForOfferToReceive(options);
|
|
this._syncTransceivers();
|
|
return this._chain(() => this._createAnOffer(options));
|
|
}
|
|
|
|
async _createAnOffer(options = {}) {
|
|
switch (this.signalingState) {
|
|
case "stable":
|
|
case "have-local-offer":
|
|
break;
|
|
default:
|
|
throw new this._win.DOMException(
|
|
`Cannot create offer in ${this.signalingState}`,
|
|
"InvalidStateError"
|
|
);
|
|
}
|
|
if (this._localUfragsToReplace.size > 0) {
|
|
options.iceRestart = true;
|
|
}
|
|
let haveAssertion;
|
|
if (this._localIdp.enabled) {
|
|
haveAssertion = this._getIdentityAssertion();
|
|
}
|
|
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));
|
|
}
|
|
|
|
_createAnswer(options) {
|
|
this._checkClosed();
|
|
this._syncTransceivers();
|
|
return this._chain(() => this._createAnAnswer());
|
|
}
|
|
|
|
async _createAnAnswer() {
|
|
if (this.signalingState != "have-remote-offer") {
|
|
throw new this._win.DOMException(
|
|
`Cannot create answer in ${this.signalingState}`,
|
|
"InvalidStateError"
|
|
);
|
|
}
|
|
let haveAssertion;
|
|
if (this._localIdp.enabled) {
|
|
haveAssertion = this._getIdentityAssertion();
|
|
}
|
|
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) {
|
|
const privileged =
|
|
this._documentPrincipal.isSystemPrincipal ||
|
|
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.docShell.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");
|
|
});
|
|
}
|
|
}
|
|
return this._havePermission;
|
|
}
|
|
|
|
_sanityCheckSdp(sdp) {
|
|
// The fippo butter finger filter AKA non-ASCII chars
|
|
// Note: SDP allows non-ASCII character in the subject (who cares?)
|
|
// eslint-disable-next-line no-control-regex
|
|
let pos = sdp.search(/[^\u0000-\u007f]/);
|
|
if (pos != -1) {
|
|
throw new this._win.DOMException(
|
|
"SDP contains non ASCII characters at position " + pos,
|
|
"InvalidParameterError"
|
|
);
|
|
}
|
|
}
|
|
|
|
setLocalDescription(desc, onSucc, onErr) {
|
|
return this._auto(onSucc, onErr, () => this._setLocalDescription(desc));
|
|
}
|
|
|
|
_setLocalDescription({ type, sdp }) {
|
|
if (type == "pranswer") {
|
|
throw new this._win.DOMException(
|
|
"pranswer not yet implemented",
|
|
"NotSupportedError"
|
|
);
|
|
}
|
|
this._checkClosed();
|
|
return this._chain(async () => {
|
|
// Avoid Promise.all ahead of synchronous part of spec algorithm, since it
|
|
// defers. NOTE: The spec says to return an already-rejected promise in
|
|
// some cases, which is difficult to achieve in practice from JS (would
|
|
// require avoiding await and then() entirely), but we want to come as
|
|
// close as we reasonably can.
|
|
const p = this._getPermission();
|
|
if (!type) {
|
|
switch (this.signalingState) {
|
|
case "stable":
|
|
case "have-local-offer":
|
|
case "have-remote-pranswer":
|
|
type = "offer";
|
|
break;
|
|
default:
|
|
type = "answer";
|
|
break;
|
|
}
|
|
}
|
|
if (!sdp) {
|
|
if (type == "offer") {
|
|
await this._createAnOffer();
|
|
} else if (type == "answer") {
|
|
await this._createAnAnswer();
|
|
}
|
|
} else {
|
|
this._sanityCheckSdp(sdp);
|
|
}
|
|
await new Promise((resolve, reject) => {
|
|
this._onSetDescriptionSuccess = resolve;
|
|
this._onSetDescriptionFailure = reject;
|
|
this._impl.setLocalDescription(this._actions[type], sdp);
|
|
});
|
|
await p;
|
|
this._negotiationNeeded = false;
|
|
if (type == "answer") {
|
|
if (this._localUfragsToReplace.size > 0) {
|
|
const ufrags = new Set(this._getUfragsWithPwds(sdp));
|
|
if (![...this._localUfragsToReplace].some(uf => ufrags.has(uf))) {
|
|
this._localUfragsToReplace.clear();
|
|
}
|
|
}
|
|
}
|
|
this.updateNegotiationNeeded();
|
|
});
|
|
}
|
|
|
|
async _validateIdentity(sdp, origin) {
|
|
// 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().
|
|
const validate = async () => {
|
|
// Access this._impl synchronously in case pc is closed later
|
|
const identity = this._impl.peerIdentity;
|
|
await this._lastIdentityValidation;
|
|
const msg = await this._remoteIdp.verifyIdentityFromSDP(sdp, origin);
|
|
// If this pc has an identity already, then the identity in sdp must match
|
|
if (identity && (!msg || msg.identity !== identity)) {
|
|
throw new this._win.DOMException(
|
|
"Peer Identity mismatch, expected: " + identity,
|
|
"OperationError"
|
|
);
|
|
}
|
|
if (this._closed) {
|
|
return;
|
|
}
|
|
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
|
|
)
|
|
);
|
|
}
|
|
};
|
|
|
|
const haveValidation = validate();
|
|
|
|
// Always eat errors on this chain
|
|
this._lastIdentityValidation = haveValidation.catch(() => {});
|
|
|
|
// If validation fails, we have some work to do. Fork it so it cannot
|
|
// interfere with the validation chain itself, even if the catch function
|
|
// throws.
|
|
haveValidation.catch(e => {
|
|
if (this._closed) {
|
|
return;
|
|
}
|
|
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();
|
|
}
|
|
});
|
|
|
|
if (this._closed) {
|
|
return;
|
|
}
|
|
// Only wait for IdP validation if we need identity matching
|
|
if (this._impl.peerIdentity) {
|
|
await haveValidation;
|
|
}
|
|
}
|
|
|
|
setRemoteDescription(desc, onSucc, onErr) {
|
|
return this._auto(onSucc, onErr, () => this._setRemoteDescription(desc));
|
|
}
|
|
|
|
_setRemoteDescription({ type, sdp }) {
|
|
if (!type) {
|
|
throw new this._win.TypeError(
|
|
"Missing required 'type' member of RTCSessionDescriptionInit"
|
|
);
|
|
}
|
|
if (type == "pranswer") {
|
|
throw new this._win.DOMException(
|
|
"pranswer not yet implemented",
|
|
"NotSupportedError"
|
|
);
|
|
}
|
|
this._checkClosed();
|
|
return this._chain(async () => {
|
|
const haveSetRemote = (async () => {
|
|
if (type == "offer" && this.signalingState == "have-local-offer") {
|
|
await new Promise((resolve, reject) => {
|
|
this._onSetDescriptionSuccess = resolve;
|
|
this._onSetDescriptionFailure = reject;
|
|
this._impl.setLocalDescription(
|
|
Ci.IPeerConnection.kActionRollback,
|
|
""
|
|
);
|
|
});
|
|
this._transceivers = this._transceivers.filter(t => !t.shouldRemove);
|
|
this._updateCanTrickle();
|
|
if (this._closed) {
|
|
return;
|
|
}
|
|
}
|
|
this._sanityCheckSdp(sdp);
|
|
const p = this._getPermission();
|
|
await new Promise((resolve, reject) => {
|
|
this._onSetDescriptionSuccess = resolve;
|
|
this._onSetDescriptionFailure = reject;
|
|
this._impl.setRemoteDescription(this._actions[type], sdp);
|
|
});
|
|
await p;
|
|
this._transceivers = this._transceivers.filter(t => !t.shouldRemove);
|
|
this._updateCanTrickle();
|
|
})();
|
|
|
|
if (type != "rollback") {
|
|
// Do setRemoteDescription and identity validation in parallel
|
|
await this._validateIdentity(sdp);
|
|
}
|
|
await haveSetRemote;
|
|
if (this._closed) {
|
|
return;
|
|
}
|
|
this._negotiationNeeded = false;
|
|
if (type == "answer") {
|
|
if (this._localUfragsToReplace.size > 0) {
|
|
const ufrags = new Set(
|
|
this._getUfragsWithPwds(this._impl.currentLocalDescription)
|
|
);
|
|
if (![...this._localUfragsToReplace].some(uf => ufrags.has(uf))) {
|
|
this._localUfragsToReplace.clear();
|
|
}
|
|
}
|
|
}
|
|
this.updateNegotiationNeeded();
|
|
});
|
|
}
|
|
|
|
setIdentityProvider(provider, { protocol, usernameHint, peerIdentity } = {}) {
|
|
this._checkClosed();
|
|
peerIdentity = peerIdentity || this._impl.peerIdentity;
|
|
this._localIdp.setIdentityProvider(
|
|
provider,
|
|
protocol,
|
|
usernameHint,
|
|
peerIdentity
|
|
);
|
|
}
|
|
|
|
async _getIdentityAssertion() {
|
|
await this._certificateReady;
|
|
return this._localIdp.getIdentityAssertion(
|
|
this._impl.fingerprint,
|
|
this._documentPrincipal.origin
|
|
);
|
|
}
|
|
|
|
getIdentityAssertion() {
|
|
this._checkClosed();
|
|
return this._win.Promise.resolve(
|
|
this._chain(() => this._getIdentityAssertion())
|
|
);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
addIceCandidate(cand, onSucc, onErr) {
|
|
if (
|
|
cand.candidate != "" &&
|
|
cand.sdpMid == null &&
|
|
cand.sdpMLineIndex == null
|
|
) {
|
|
throw new this._win.TypeError(
|
|
"Cannot add a candidate without specifying either sdpMid or sdpMLineIndex"
|
|
);
|
|
}
|
|
return this._auto(onSucc, onErr, () => this._addIceCandidate(cand));
|
|
}
|
|
|
|
async _addIceCandidate({
|
|
candidate,
|
|
sdpMid,
|
|
sdpMLineIndex,
|
|
usernameFragment,
|
|
}) {
|
|
this._checkClosed();
|
|
return this._chain(async () => {
|
|
if (
|
|
!this._impl.pendingRemoteDescription.length &&
|
|
!this._impl.currentRemoteDescription.length
|
|
) {
|
|
throw new this._win.DOMException(
|
|
"No remoteDescription.",
|
|
"InvalidStateError"
|
|
);
|
|
}
|
|
return new Promise((resolve, reject) => {
|
|
this._onAddIceCandidateSuccess = resolve;
|
|
this._onAddIceCandidateError = reject;
|
|
this._impl.addIceCandidate(
|
|
candidate,
|
|
sdpMid || "",
|
|
usernameFragment || "",
|
|
sdpMLineIndex
|
|
);
|
|
});
|
|
});
|
|
}
|
|
|
|
restartIce() {
|
|
if (this._closed) {
|
|
return;
|
|
}
|
|
this._localUfragsToReplace = new Set([
|
|
...this._getUfragsWithPwds(this._impl.currentLocalDescription),
|
|
...this._getUfragsWithPwds(this._impl.pendingLocalDescription),
|
|
]);
|
|
this.updateNegotiationNeeded();
|
|
}
|
|
|
|
_getUfragsWithPwds(sdp) {
|
|
return (
|
|
sdp
|
|
.split("\r\nm=")
|
|
.map(block => block.split("\r\n"))
|
|
.map(lines => [
|
|
lines.find(l => l.startsWith("a=ice-ufrag:")),
|
|
lines.find(l => l.startsWith("a=ice-pwd:")),
|
|
])
|
|
// Even though our own SDP doesn't currently do this: JSEP says properties
|
|
// found in the session (array[0]) apply to all m-lines that don't specify
|
|
// them, like default values.
|
|
.map(([a, b], i, array) => [a || array[0][0], b || array[0][1]])
|
|
.filter(([a, b]) => a && b)
|
|
.map(array => array.join())
|
|
);
|
|
}
|
|
|
|
addStream(stream) {
|
|
stream.getTracks().forEach(track => this.addTrack(track, stream));
|
|
}
|
|
|
|
addTrack(track, ...streams) {
|
|
this._checkClosed();
|
|
|
|
if (
|
|
this._transceivers.some(transceiver => transceiver.sender.track == track)
|
|
) {
|
|
throw new this._win.DOMException(
|
|
"This track is already set on a sender.",
|
|
"InvalidAccessError"
|
|
);
|
|
}
|
|
|
|
let transceiver = this._transceivers.find(transceiver => {
|
|
return (
|
|
transceiver.sender.track == null &&
|
|
transceiver.getKind() == track.kind &&
|
|
!transceiver.stopped &&
|
|
!transceiver.hasBeenUsedToSend()
|
|
);
|
|
});
|
|
|
|
if (transceiver) {
|
|
transceiver.sender.setTrack(track);
|
|
transceiver.sender.setStreams(streams);
|
|
if (transceiver.direction == "recvonly") {
|
|
transceiver.setDirectionInternal("sendrecv");
|
|
} else if (transceiver.direction == "inactive") {
|
|
transceiver.setDirectionInternal("sendonly");
|
|
}
|
|
} else {
|
|
transceiver = this._addTransceiverNoEvents(track, {
|
|
streams,
|
|
direction: "sendrecv",
|
|
});
|
|
}
|
|
|
|
transceiver.setAddTrackMagic();
|
|
transceiver.sync();
|
|
this.updateNegotiationNeeded();
|
|
return transceiver.sender;
|
|
}
|
|
|
|
removeTrack(sender) {
|
|
this._checkClosed();
|
|
|
|
sender.checkWasCreatedByPc(this.__DOM_IMPL__);
|
|
|
|
let transceiver = this._transceivers.find(
|
|
transceiver => !transceiver.stopped && transceiver.sender == sender
|
|
);
|
|
|
|
// If the transceiver was removed due to rollback, let it slide.
|
|
if (!transceiver || !sender.track) {
|
|
return;
|
|
}
|
|
|
|
sender.setTrack(null);
|
|
if (transceiver.direction == "sendrecv") {
|
|
transceiver.setDirectionInternal("recvonly");
|
|
} else if (transceiver.direction == "sendonly") {
|
|
transceiver.setDirectionInternal("inactive");
|
|
}
|
|
|
|
transceiver.sync();
|
|
this.updateNegotiationNeeded();
|
|
}
|
|
|
|
_addTransceiverNoEvents(sendTrackOrKind, init) {
|
|
let sendTrack = null;
|
|
let kind;
|
|
if (typeof sendTrackOrKind == "string") {
|
|
kind = sendTrackOrKind;
|
|
switch (kind) {
|
|
case "audio":
|
|
case "video":
|
|
break;
|
|
default:
|
|
throw new this._win.TypeError("Invalid media kind");
|
|
}
|
|
} else {
|
|
sendTrack = sendTrackOrKind;
|
|
kind = sendTrack.kind;
|
|
}
|
|
|
|
let transceiverImpl = this._impl.createTransceiverImpl(kind, sendTrack);
|
|
let transceiver = this._win.RTCRtpTransceiver._create(
|
|
this._win,
|
|
new RTCRtpTransceiver(this, transceiverImpl, init, kind, sendTrack)
|
|
);
|
|
transceiver.sync();
|
|
this._transceivers.push(transceiver);
|
|
return transceiver;
|
|
}
|
|
|
|
_onTransceiverNeeded(kind, transceiverImpl) {
|
|
let init = { direction: "recvonly" };
|
|
let transceiver = this._win.RTCRtpTransceiver._create(
|
|
this._win,
|
|
new RTCRtpTransceiver(this, transceiverImpl, init, kind, null)
|
|
);
|
|
transceiver.sync();
|
|
this._transceivers.push(transceiver);
|
|
}
|
|
|
|
addTransceiver(sendTrackOrKind, init) {
|
|
this._checkClosed();
|
|
let transceiver = this._addTransceiverNoEvents(sendTrackOrKind, init);
|
|
this.updateNegotiationNeeded();
|
|
return transceiver;
|
|
}
|
|
|
|
_syncTransceivers() {
|
|
this._transceivers.forEach(transceiver => transceiver.sync());
|
|
}
|
|
|
|
updateNegotiationNeeded() {
|
|
if (this._operations.length) {
|
|
this._updateNegotiationNeededOnEmptyChain = true;
|
|
return;
|
|
}
|
|
this._queueTaskWithClosedCheck(() => {
|
|
if (this._operations.length) {
|
|
this._updateNegotiationNeededOnEmptyChain = true;
|
|
return;
|
|
}
|
|
if (this.signalingState != "stable") {
|
|
return;
|
|
}
|
|
|
|
const negotiationNeeded =
|
|
this._impl.checkNegotiationNeeded() ||
|
|
this._localUfragsToReplace.size > 0;
|
|
if (!negotiationNeeded) {
|
|
this._negotiationNeeded = false;
|
|
return;
|
|
}
|
|
|
|
if (this._negotiationNeeded) {
|
|
return;
|
|
}
|
|
|
|
this._negotiationNeeded = true;
|
|
this.dispatchEvent(new this._win.Event("negotiationneeded"));
|
|
});
|
|
}
|
|
|
|
_replaceTrackNoRenegotiation(transceiverImpl, withTrack) {
|
|
this._impl.replaceTrackNoRenegotiation(transceiverImpl, withTrack);
|
|
}
|
|
|
|
close() {
|
|
if (this._closed) {
|
|
return;
|
|
}
|
|
this._closed = true;
|
|
this.changeIceConnectionState("closed");
|
|
if (this._localIdp) {
|
|
this._localIdp.close();
|
|
}
|
|
if (this._remoteIdp) {
|
|
this._remoteIdp.close();
|
|
}
|
|
if (!this._suppressEvents) {
|
|
this._transceivers.forEach(t => t.setStopped());
|
|
}
|
|
this._impl.close();
|
|
this._suppressEvents = true;
|
|
delete this._pc;
|
|
}
|
|
|
|
getLocalStreams() {
|
|
this._checkClosed();
|
|
let localStreams = new Set();
|
|
this._transceivers.forEach(transceiver => {
|
|
transceiver.sender.getStreams().forEach(stream => {
|
|
localStreams.add(stream);
|
|
});
|
|
});
|
|
return [...localStreams.values()];
|
|
}
|
|
|
|
getRemoteStreams() {
|
|
this._checkClosed();
|
|
return this._impl.getRemoteStreams();
|
|
}
|
|
|
|
getSenders() {
|
|
return this.getTransceivers()
|
|
.filter(transceiver => !transceiver.stopped)
|
|
.map(transceiver => transceiver.sender);
|
|
}
|
|
|
|
getReceivers() {
|
|
return this.getTransceivers()
|
|
.filter(transceiver => !transceiver.stopped)
|
|
.map(transceiver => transceiver.receiver);
|
|
}
|
|
|
|
mozSetPacketCallback(callback) {
|
|
this._onPacket = callback;
|
|
}
|
|
|
|
mozEnablePacketDump(level, type, sending) {
|
|
this._impl.enablePacketDump(level, type, sending);
|
|
}
|
|
|
|
mozDisablePacketDump(level, type, sending) {
|
|
this._impl.disablePacketDump(level, type, sending);
|
|
}
|
|
|
|
getTransceivers() {
|
|
return this._transceivers;
|
|
}
|
|
|
|
get localDescription() {
|
|
return this.pendingLocalDescription || this.currentLocalDescription;
|
|
}
|
|
|
|
get currentLocalDescription() {
|
|
this._checkClosed();
|
|
const sdp = this._impl.currentLocalDescription;
|
|
if (sdp.length == 0) {
|
|
return null;
|
|
}
|
|
const type = this._impl.currentOfferer ? "offer" : "answer";
|
|
return new this._win.RTCSessionDescription({ type, sdp });
|
|
}
|
|
|
|
get pendingLocalDescription() {
|
|
this._checkClosed();
|
|
const sdp = this._impl.pendingLocalDescription;
|
|
if (sdp.length == 0) {
|
|
return null;
|
|
}
|
|
const type = this._impl.pendingOfferer ? "offer" : "answer";
|
|
return new this._win.RTCSessionDescription({ type, sdp });
|
|
}
|
|
|
|
get remoteDescription() {
|
|
return this.pendingRemoteDescription || this.currentRemoteDescription;
|
|
}
|
|
|
|
get currentRemoteDescription() {
|
|
this._checkClosed();
|
|
const sdp = this._impl.currentRemoteDescription;
|
|
if (sdp.length == 0) {
|
|
return null;
|
|
}
|
|
const type = this._impl.currentOfferer ? "answer" : "offer";
|
|
return new this._win.RTCSessionDescription({ type, sdp });
|
|
}
|
|
|
|
get pendingRemoteDescription() {
|
|
this._checkClosed();
|
|
const sdp = this._impl.pendingRemoteDescription;
|
|
if (sdp.length == 0) {
|
|
return null;
|
|
}
|
|
const type = this._impl.pendingOfferer ? "answer" : "offer";
|
|
return new this._win.RTCSessionDescription({ type, 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._pc.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 this._impl.signalingState;
|
|
}
|
|
|
|
handleIceGatheringStateChange() {
|
|
_globalPCList.notifyLifecycleObservers(this, "icegatheringstatechange");
|
|
this.dispatchEvent(new this._win.Event("icegatheringstatechange"));
|
|
if (this.iceGatheringState === "complete") {
|
|
this.dispatchEvent(
|
|
new this._win.RTCPeerConnectionIceEvent("icecandidate", {
|
|
candidate: null,
|
|
})
|
|
);
|
|
}
|
|
}
|
|
|
|
changeIceConnectionState(state) {
|
|
if (state != this._iceConnectionState) {
|
|
this._iceConnectionState = state;
|
|
_globalPCList.notifyLifecycleObservers(this, "iceconnectionstatechange");
|
|
if (!this._closed) {
|
|
this.dispatchEvent(new this._win.Event("iceconnectionstatechange"));
|
|
}
|
|
}
|
|
}
|
|
|
|
getStats(selector, onSucc, onErr) {
|
|
if (selector !== null) {
|
|
let matchingSenders = this.getSenders().filter(s => s.track === selector);
|
|
let matchingReceivers = this.getReceivers().filter(
|
|
r => r.track === selector
|
|
);
|
|
|
|
if (matchingSenders.length + matchingReceivers.length != 1) {
|
|
throw new this._win.DOMException(
|
|
"track must be associated with a unique sender or receiver, but " +
|
|
" is associated with " +
|
|
matchingSenders.length +
|
|
" senders and " +
|
|
matchingReceivers.length +
|
|
" receivers.",
|
|
"InvalidAccessError"
|
|
);
|
|
}
|
|
}
|
|
|
|
return this._auto(onSucc, onErr, () => this._impl.getStats(selector));
|
|
}
|
|
|
|
createDataChannel(
|
|
label,
|
|
{
|
|
maxRetransmits,
|
|
ordered,
|
|
negotiated,
|
|
id = null,
|
|
maxRetransmitTime,
|
|
maxPacketLifeTime,
|
|
protocol,
|
|
} = {}
|
|
) {
|
|
this._checkClosed();
|
|
this._pcTelemetry.recordDataChannelInit(
|
|
maxRetransmitTime,
|
|
maxPacketLifeTime
|
|
);
|
|
|
|
if (maxPacketLifeTime === undefined) {
|
|
maxPacketLifeTime = maxRetransmitTime;
|
|
}
|
|
|
|
if (maxRetransmitTime !== undefined) {
|
|
this.logWarning(
|
|
"Use maxPacketLifeTime instead of deprecated maxRetransmitTime which will stop working soon in createDataChannel!"
|
|
);
|
|
}
|
|
|
|
if (protocol.length > 32767) {
|
|
// At least 65536/2 UTF-16 characters. UTF-8 might be too long.
|
|
// Spec says to check how long |protocol| and |label| are in _bytes_. This
|
|
// is a little ambiguous. For now, examine the length of the utf-8 encoding.
|
|
const byteCounter = new TextEncoder("utf-8");
|
|
|
|
if (byteCounter.encode(protocol).length > 65535) {
|
|
throw new this._win.TypeError(
|
|
"protocol cannot be longer than 65535 bytes"
|
|
);
|
|
}
|
|
}
|
|
|
|
if (label.length > 32767) {
|
|
const byteCounter = new TextEncoder("utf-8");
|
|
if (byteCounter.encode(label).length > 65535) {
|
|
throw new this._win.TypeError(
|
|
"label cannot be longer than 65535 bytes"
|
|
);
|
|
}
|
|
}
|
|
|
|
if (!negotiated) {
|
|
id = null;
|
|
} else if (id === null) {
|
|
throw new this._win.TypeError("id is required when negotiated is true");
|
|
}
|
|
if (maxPacketLifeTime !== undefined && maxRetransmits !== undefined) {
|
|
throw new this._win.TypeError(
|
|
"Both maxPacketLifeTime and maxRetransmits cannot be provided"
|
|
);
|
|
}
|
|
if (id == 65535) {
|
|
throw new this._win.TypeError("id cannot be 65535");
|
|
}
|
|
// Must determine the type where we still know if entries are undefined.
|
|
let type;
|
|
if (maxPacketLifeTime !== undefined) {
|
|
type = Ci.IPeerConnection.kDataChannelPartialReliableTimed;
|
|
} else if (maxRetransmits !== undefined) {
|
|
type = Ci.IPeerConnection.kDataChannelPartialReliableRexmit;
|
|
} else {
|
|
type = Ci.IPeerConnection.kDataChannelReliable;
|
|
}
|
|
// Synchronous since it doesn't block.
|
|
let dataChannel;
|
|
try {
|
|
dataChannel = this._impl.createDataChannel(
|
|
label,
|
|
protocol,
|
|
type,
|
|
ordered,
|
|
maxPacketLifeTime,
|
|
maxRetransmits,
|
|
negotiated,
|
|
id
|
|
);
|
|
} catch (e) {
|
|
if (e.result != Cr.NS_ERROR_NOT_AVAILABLE) {
|
|
throw e;
|
|
}
|
|
|
|
const msg =
|
|
id === null ? "No available id could be generated" : "Id is in use";
|
|
throw new this._win.DOMException(msg, "OperationError");
|
|
}
|
|
|
|
// Spec says to only do this if this is the first DataChannel created,
|
|
// but the c++ code that does the "is negotiation needed" checking will
|
|
// only ever return true on the first one.
|
|
this.updateNegotiationNeeded();
|
|
|
|
return dataChannel;
|
|
}
|
|
}
|
|
setupPrototype(RTCPeerConnection, {
|
|
classID: PC_CID,
|
|
contractID: PC_CONTRACT,
|
|
QueryInterface: ChromeUtils.generateQI(["nsIDOMGlobalPropertyInitializer"]),
|
|
_actions: {
|
|
offer: Ci.IPeerConnection.kActionOffer,
|
|
answer: Ci.IPeerConnection.kActionAnswer,
|
|
pranswer: Ci.IPeerConnection.kActionPRAnswer,
|
|
rollback: Ci.IPeerConnection.kActionRollback,
|
|
},
|
|
});
|
|
|
|
// 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, name }) {
|
|
return new this._dompc._win.DOMException(message, name);
|
|
}
|
|
|
|
dispatchEvent(event) {
|
|
this._dompc.dispatchEvent(event);
|
|
}
|
|
|
|
onCreateOfferSuccess(sdp) {
|
|
this._dompc._onCreateOfferSuccess(sdp);
|
|
}
|
|
|
|
onCreateOfferError(error) {
|
|
this._dompc._onCreateOfferFailure(this.newError(error));
|
|
}
|
|
|
|
onCreateAnswerSuccess(sdp) {
|
|
this._dompc._onCreateAnswerSuccess(sdp);
|
|
}
|
|
|
|
onCreateAnswerError(error) {
|
|
this._dompc._onCreateAnswerFailure(this.newError(error));
|
|
}
|
|
|
|
onSetDescriptionSuccess() {
|
|
this._dompc._onSetDescriptionSuccess();
|
|
}
|
|
|
|
onSetDescriptionError(error) {
|
|
this._dompc._onSetDescriptionFailure(this.newError(error));
|
|
}
|
|
|
|
onAddIceCandidateSuccess() {
|
|
this._dompc._onAddIceCandidateSuccess();
|
|
}
|
|
|
|
onAddIceCandidateError(error) {
|
|
this._dompc._onAddIceCandidateError(this.newError(error));
|
|
}
|
|
|
|
onIceCandidate(sdpMLineIndex, sdpMid, candidate, usernameFragment) {
|
|
let win = this._dompc._win;
|
|
if (candidate || sdpMid || usernameFragment) {
|
|
if (candidate.includes(" typ relay ")) {
|
|
this._dompc._iceGatheredRelayCandidates = true;
|
|
}
|
|
candidate = new win.RTCIceCandidate({
|
|
candidate,
|
|
sdpMid,
|
|
sdpMLineIndex,
|
|
usernameFragment,
|
|
});
|
|
}
|
|
this.dispatchEvent(
|
|
new win.RTCPeerConnectionIceEvent("icecandidate", { candidate })
|
|
);
|
|
}
|
|
|
|
// 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 (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);
|
|
}
|
|
|
|
onStateChange(state) {
|
|
if (!this._dompc) {
|
|
return;
|
|
}
|
|
|
|
if (state == "SignalingState") {
|
|
this.dispatchEvent(new this._win.Event("signalingstatechange"));
|
|
return;
|
|
}
|
|
|
|
if (!this._dompc._pc) {
|
|
return;
|
|
}
|
|
|
|
switch (state) {
|
|
case "IceConnectionState":
|
|
let connState = this._dompc._pc.iceConnectionState;
|
|
this._dompc._queueTaskWithClosedCheck(() => {
|
|
this.handleIceConnectionStateChange(connState);
|
|
});
|
|
break;
|
|
|
|
case "IceGatheringState":
|
|
this._dompc.handleIceGatheringStateChange();
|
|
break;
|
|
|
|
default:
|
|
this._dompc.logWarning("Unhandled state type: " + state);
|
|
break;
|
|
}
|
|
}
|
|
|
|
onTransceiverNeeded(kind, transceiverImpl) {
|
|
this._dompc._onTransceiverNeeded(kind, transceiverImpl);
|
|
}
|
|
|
|
notifyDataChannel(channel) {
|
|
this.dispatchEvent(
|
|
new this._dompc._win.RTCDataChannelEvent("datachannel", { channel })
|
|
);
|
|
}
|
|
|
|
fireTrackEvent(receiver, streams) {
|
|
const pc = this._dompc;
|
|
const transceiver = pc.getTransceivers().find(t => t.receiver == receiver);
|
|
if (!transceiver) {
|
|
return;
|
|
}
|
|
const track = receiver.track;
|
|
this.dispatchEvent(
|
|
new this._win.RTCTrackEvent("track", {
|
|
transceiver,
|
|
receiver,
|
|
track,
|
|
streams,
|
|
})
|
|
);
|
|
// Fire legacy event as well for a little bit.
|
|
this.dispatchEvent(
|
|
new this._win.MediaStreamTrackEvent("addtrack", { track })
|
|
);
|
|
}
|
|
|
|
fireStreamEvent(stream) {
|
|
const ev = new this._win.MediaStreamEvent("addstream", { stream });
|
|
this.dispatchEvent(ev);
|
|
}
|
|
|
|
onPacket(level, type, sending, packet) {
|
|
var pc = this._dompc;
|
|
if (pc._onPacket) {
|
|
pc._onPacket(level, type, sending, packet);
|
|
}
|
|
}
|
|
|
|
syncTransceivers() {
|
|
this._dompc._syncTransceivers();
|
|
}
|
|
}
|
|
setupPrototype(PeerConnectionObserver, {
|
|
classID: PC_OBS_CID,
|
|
contractID: PC_OBS_CONTRACT,
|
|
QueryInterface: ChromeUtils.generateQI(["nsIDOMGlobalPropertyInitializer"]),
|
|
});
|
|
|
|
class RTCPeerConnectionStatic {
|
|
init(win) {
|
|
this._winID = win.windowGlobalChild.innerWindowId;
|
|
}
|
|
|
|
registerPeerConnectionLifecycleCallback(cb) {
|
|
_globalPCList._registerPeerConnectionLifecycleCallback(this._winID, cb);
|
|
}
|
|
}
|
|
setupPrototype(RTCPeerConnectionStatic, {
|
|
classID: PC_STATIC_CID,
|
|
contractID: PC_STATIC_CONTRACT,
|
|
QueryInterface: ChromeUtils.generateQI(["nsIDOMGlobalPropertyInitializer"]),
|
|
});
|
|
|
|
class RTCRtpSender {
|
|
constructor(pc, transceiverImpl, transceiver, track, kind, streams) {
|
|
let dtmf = null;
|
|
if (kind == "audio") {
|
|
dtmf = transceiverImpl.dtmf;
|
|
}
|
|
|
|
Object.assign(this, {
|
|
_pc: pc,
|
|
_transceiverImpl: transceiverImpl,
|
|
_transceiver: transceiver,
|
|
track,
|
|
_streams: streams,
|
|
dtmf,
|
|
});
|
|
}
|
|
|
|
replaceTrack(withTrack) {
|
|
// async functions in here return a chrome promise, which is not something
|
|
// content can use. This wraps that promise in something content can use.
|
|
return this._pc._win.Promise.resolve(this._replaceTrack(withTrack));
|
|
}
|
|
|
|
async _replaceTrack(withTrack) {
|
|
let pc = this._pc;
|
|
if (withTrack && withTrack.kind != this._transceiver.getKind()) {
|
|
throw new pc._win.TypeError("Cannot replaceTrack with a different kind!");
|
|
}
|
|
|
|
pc._checkClosed();
|
|
|
|
await pc._chain(async () => {
|
|
if (this._transceiver.stopped) {
|
|
throw new pc._win.DOMException(
|
|
"Cannot call replaceTrack when transceiver is stopped",
|
|
"InvalidStateError"
|
|
);
|
|
}
|
|
|
|
await pc._queueTaskWithClosedCheck(() => {
|
|
// Updates the track on the MediaPipeline, will throw on failure.
|
|
try {
|
|
pc._replaceTrackNoRenegotiation(this._transceiverImpl, withTrack);
|
|
} catch (e) {
|
|
throw new pc._win.DOMException(
|
|
"Track could not be replaced without renegotiation",
|
|
"InvalidModificationError"
|
|
);
|
|
}
|
|
this.track = withTrack;
|
|
this._transceiver.sync();
|
|
});
|
|
});
|
|
}
|
|
|
|
setParameters(parameters) {
|
|
return this._pc._win.Promise.resolve(this._setParameters(parameters));
|
|
}
|
|
|
|
async _setParameters(parameters) {
|
|
this._pc._checkClosed();
|
|
|
|
if (this._transceiver.stopped) {
|
|
throw new this._pc._win.DOMException(
|
|
"This sender's transceiver is stopped",
|
|
"InvalidStateError"
|
|
);
|
|
}
|
|
|
|
if (!Services.prefs.getBoolPref("media.peerconnection.simulcast")) {
|
|
return;
|
|
}
|
|
|
|
parameters.encodings = parameters.encodings || [];
|
|
|
|
parameters.encodings.reduce(
|
|
(uniqueRids, { rid, scaleResolutionDownBy }) => {
|
|
if (scaleResolutionDownBy < 1.0) {
|
|
throw new this._pc._win.RangeError(
|
|
"scaleResolutionDownBy must be >= 1.0"
|
|
);
|
|
}
|
|
if (!rid && parameters.encodings.length > 1) {
|
|
throw new this._pc._win.TypeError("Missing rid");
|
|
}
|
|
if (uniqueRids[rid]) {
|
|
throw new this._pc._win.TypeError("Duplicate rid");
|
|
}
|
|
uniqueRids[rid] = true;
|
|
return uniqueRids;
|
|
},
|
|
{}
|
|
);
|
|
|
|
// TODO(bug 1401592): transaction ids, timing changes
|
|
|
|
await this._pc._queueTaskWithClosedCheck(() => {
|
|
this.parameters = parameters;
|
|
this._transceiver.sync();
|
|
});
|
|
}
|
|
|
|
getParameters() {
|
|
// TODO(bug 1401592): transaction ids
|
|
|
|
// All the other stuff that the spec says to update is handled when
|
|
// transceivers are synced.
|
|
return this.parameters;
|
|
}
|
|
|
|
setStreams(streams) {
|
|
this._streams = streams;
|
|
}
|
|
|
|
getStreams() {
|
|
return this._streams;
|
|
}
|
|
|
|
setTrack(track) {
|
|
this._pc._replaceTrackNoRenegotiation(this._transceiverImpl, track);
|
|
this.track = track;
|
|
}
|
|
|
|
get transport() {
|
|
return this._transceiverImpl.dtlsTransport;
|
|
}
|
|
|
|
getStats() {
|
|
if (this.track) {
|
|
return this._pc._async(async () => this._pc._impl.getStats(this.track));
|
|
}
|
|
return this._pc._win.Promise.resolve().then(
|
|
() => new this._pc._win.RTCStatsReport()
|
|
);
|
|
}
|
|
|
|
checkWasCreatedByPc(pc) {
|
|
if (pc != this._pc.__DOM_IMPL__) {
|
|
throw new this._pc._win.DOMException(
|
|
"This sender was not created by this PeerConnection",
|
|
"InvalidAccessError"
|
|
);
|
|
}
|
|
}
|
|
}
|
|
setupPrototype(RTCRtpSender, {
|
|
classID: PC_SENDER_CID,
|
|
contractID: PC_SENDER_CONTRACT,
|
|
QueryInterface: ChromeUtils.generateQI([]),
|
|
});
|
|
|
|
class RTCRtpTransceiver {
|
|
constructor(pc, transceiverImpl, init, kind, sendTrack) {
|
|
let receiver = transceiverImpl.receiver;
|
|
let streams = (init && init.streams) || [];
|
|
let sender = pc._win.RTCRtpSender._create(
|
|
pc._win,
|
|
new RTCRtpSender(pc, transceiverImpl, this, sendTrack, kind, streams)
|
|
);
|
|
|
|
let direction = (init && init.direction) || "sendrecv";
|
|
Object.assign(this, {
|
|
_pc: pc,
|
|
mid: null,
|
|
sender,
|
|
receiver,
|
|
stopped: false,
|
|
_direction: direction,
|
|
currentDirection: null,
|
|
addTrackMagic: false,
|
|
shouldRemove: false,
|
|
_hasBeenUsedToSend: false,
|
|
// the receiver starts out without a track, so record this here
|
|
_kind: kind,
|
|
_transceiverImpl: transceiverImpl,
|
|
});
|
|
}
|
|
|
|
set direction(direction) {
|
|
this._pc._checkClosed();
|
|
|
|
if (this.stopped) {
|
|
throw new this._pc._win.DOMException(
|
|
"Transceiver is stopped!",
|
|
"InvalidStateError"
|
|
);
|
|
}
|
|
|
|
if (this._direction == direction) {
|
|
return;
|
|
}
|
|
|
|
this._direction = direction;
|
|
this.sync();
|
|
this._pc.updateNegotiationNeeded();
|
|
}
|
|
|
|
get direction() {
|
|
return this._direction;
|
|
}
|
|
|
|
setDirectionInternal(direction) {
|
|
this._direction = direction;
|
|
}
|
|
|
|
stop() {
|
|
this._pc._checkClosed();
|
|
|
|
if (this.stopped) {
|
|
return;
|
|
}
|
|
|
|
this.setStopped();
|
|
this.sync();
|
|
this._pc.updateNegotiationNeeded();
|
|
}
|
|
|
|
setStopped() {
|
|
this.stopped = true;
|
|
this.currentDirection = null;
|
|
}
|
|
|
|
getKind() {
|
|
return this._kind;
|
|
}
|
|
|
|
hasBeenUsedToSend() {
|
|
return this._hasBeenUsedToSend;
|
|
}
|
|
|
|
setAddTrackMagic() {
|
|
this.addTrackMagic = true;
|
|
}
|
|
|
|
sync() {
|
|
if (this._syncing) {
|
|
throw new DOMException("Reentrant sync! This is a bug!", "InternalError");
|
|
}
|
|
this._syncing = true;
|
|
this._transceiverImpl.syncWithJS(this.__DOM_IMPL__);
|
|
this._syncing = false;
|
|
}
|
|
|
|
// Used by _transceiverImpl.syncWithJS, don't call sync again!
|
|
setCurrentDirection(direction) {
|
|
if (this.stopped) {
|
|
return;
|
|
}
|
|
|
|
switch (direction) {
|
|
case "sendrecv":
|
|
case "sendonly":
|
|
this._hasBeenUsedToSend = true;
|
|
break;
|
|
default:
|
|
}
|
|
|
|
this.currentDirection = direction;
|
|
}
|
|
|
|
// Used by _transceiverImpl.syncWithJS, don't call sync again!
|
|
setMid(mid) {
|
|
this.mid = mid;
|
|
}
|
|
|
|
// Used by _transceiverImpl.syncWithJS, don't call sync again!
|
|
unsetMid() {
|
|
this.mid = null;
|
|
}
|
|
}
|
|
|
|
setupPrototype(RTCRtpTransceiver, {
|
|
classID: PC_TRANSCEIVER_CID,
|
|
contractID: PC_TRANSCEIVER_CONTRACT,
|
|
QueryInterface: ChromeUtils.generateQI([]),
|
|
});
|
|
|
|
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: ChromeUtils.generateQI([]),
|
|
});
|
|
|
|
var EXPORTED_SYMBOLS = [
|
|
"GlobalPCList",
|
|
"RTCIceCandidate",
|
|
"RTCSessionDescription",
|
|
"RTCPeerConnection",
|
|
"RTCPeerConnectionStatic",
|
|
"RTCRtpSender",
|
|
"RTCRtpTransceiver",
|
|
"PeerConnectionObserver",
|
|
"CreateOfferRequest",
|
|
];
|