зеркало из https://github.com/mozilla/gecko-dev.git
1107 строки
36 KiB
JavaScript
1107 строки
36 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 {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
|
|
|
|
Cu.import("resource://gre/modules/Services.jsm");
|
|
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
|
|
|
|
const PC_CONTRACT = "@mozilla.org/dom/peerconnection;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_ICEEVENT_CONTRACT = "@mozilla.org/dom/rtcpeerconnectioniceevent;1";
|
|
const MSEVENT_CONTRACT = "@mozilla.org/dom/mediastreamevent;1";
|
|
const DCEVENT_CONTRACT = "@mozilla.org/dom/datachannelevent;1";
|
|
|
|
const PC_CID = Components.ID("{9878b414-afaa-4176-a887-1e02b3b047c2}");
|
|
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_ICEEVENT_CID = Components.ID("{b9cd25a7-9859-4f9e-8f84-ef5181ff36c0}");
|
|
const MSEVENT_CID = Components.ID("{a722a8a9-2290-4e99-a5ed-07b504292d08}");
|
|
const DCEVENT_CID = Components.ID("{d5ed7fbf-01a8-4b18-af6c-861cf2aac920}");
|
|
|
|
// 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).
|
|
function GlobalPCList() {
|
|
this._list = [];
|
|
this._networkdown = false; // XXX Need to query current state somehow
|
|
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);
|
|
}
|
|
GlobalPCList.prototype = {
|
|
QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver,
|
|
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);
|
|
}
|
|
},
|
|
|
|
addPC: function(pc) {
|
|
let winID = pc._winID;
|
|
if (this._list[winID]) {
|
|
this._list[winID].push(Cu.getWeakReference(pc));
|
|
} else {
|
|
this._list[winID] = [Cu.getWeakReference(pc)];
|
|
}
|
|
this.removeNullRefs(winID);
|
|
},
|
|
|
|
removeNullRefs: function(winID) {
|
|
if (this._list === undefined || this._list[winID] === undefined) {
|
|
return;
|
|
}
|
|
this._list[winID] = this._list[winID].filter(
|
|
function (e,i,a) { return e.get() !== null; });
|
|
},
|
|
|
|
hasActivePeerConnection: function(winID) {
|
|
this.removeNullRefs(winID);
|
|
return this._list[winID] ? true : false;
|
|
},
|
|
|
|
observe: function(subject, topic, data) {
|
|
if (topic == "inner-window-destroyed") {
|
|
let winID = subject.QueryInterface(Ci.nsISupportsPRUint64).data;
|
|
if (this._list[winID]) {
|
|
this._list[winID].forEach(function(pcref) {
|
|
let pc = pcref.get();
|
|
if (pc !== null) {
|
|
pc._pc.close();
|
|
delete pc._observer;
|
|
pc._pc = null;
|
|
}
|
|
});
|
|
delete this._list[winID];
|
|
}
|
|
} else if (topic == "profile-change-net-teardown" ||
|
|
topic == "network:offline-about-to-go-offline") {
|
|
// Delete all peerconnections on shutdown - mostly synchronously (we
|
|
// need them to be done deleting transports and streams before we
|
|
// return)! All socket operations must be queued to STS thread
|
|
// before we return to here.
|
|
// Also kill them if "Work Offline" is selected - more can be created
|
|
// while offline, but attempts to connect them should fail.
|
|
let array;
|
|
while ((array = this._list.pop()) != undefined) {
|
|
array.forEach(function(pcref) {
|
|
let pc = pcref.get();
|
|
if (pc !== null) {
|
|
pc._pc.close();
|
|
delete pc._observer;
|
|
pc._pc = null;
|
|
}
|
|
});
|
|
};
|
|
this._networkdown = true;
|
|
}
|
|
else if (topic == "network:offline-status-changed") {
|
|
if (data == "offline") {
|
|
// this._list shold be empty here
|
|
this._networkdown = true;
|
|
} else if (data == "online") {
|
|
this._networkdown = false;
|
|
}
|
|
}
|
|
},
|
|
};
|
|
let _globalPCList = new GlobalPCList();
|
|
|
|
function RTCIceCandidate() {
|
|
this.candidate = this.sdpMid = this.sdpMLineIndex = null;
|
|
}
|
|
RTCIceCandidate.prototype = {
|
|
classDescription: "mozRTCIceCandidate",
|
|
classID: PC_ICE_CID,
|
|
contractID: PC_ICE_CONTRACT,
|
|
QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports,
|
|
Ci.nsIDOMGlobalPropertyInitializer]),
|
|
|
|
init: function(win) { this._win = win; },
|
|
|
|
__init: function(dict) {
|
|
this.candidate = dict.candidate;
|
|
this.sdpMid = dict.sdpMid;
|
|
this.sdpMLineIndex = ("sdpMLineIndex" in dict)? dict.sdpMLineIndex : null;
|
|
}
|
|
};
|
|
|
|
function RTCSessionDescription() {
|
|
this.type = this.sdp = null;
|
|
}
|
|
RTCSessionDescription.prototype = {
|
|
classDescription: "mozRTCSessionDescription",
|
|
classID: PC_SESSION_CID,
|
|
contractID: PC_SESSION_CONTRACT,
|
|
QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports,
|
|
Ci.nsIDOMGlobalPropertyInitializer]),
|
|
|
|
init: function(win) { this._win = win; },
|
|
|
|
__init: function(dict) {
|
|
this.type = dict.type;
|
|
this.sdp = dict.sdp;
|
|
}
|
|
};
|
|
|
|
function MediaStreamEvent() {
|
|
this.type = this._stream = null;
|
|
}
|
|
MediaStreamEvent.prototype = {
|
|
classDescription: "MediaStreamEvent",
|
|
classID: MSEVENT_CID,
|
|
contractID: MSEVENT_CONTRACT,
|
|
QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports,
|
|
Ci.nsIDOMGlobalPropertyInitializer]),
|
|
|
|
init: function(win) { this._win = win; },
|
|
|
|
__init: function(type, dict) {
|
|
this.type = type;
|
|
this.__DOM_IMPL__.initEvent(type, dict.bubbles || false,
|
|
dict.cancelable || false);
|
|
this._stream = dict.stream;
|
|
},
|
|
|
|
get stream() { return this._stream; }
|
|
};
|
|
|
|
function RTCDataChannelEvent() {
|
|
this.type = this._channel = null;
|
|
}
|
|
RTCDataChannelEvent.prototype = {
|
|
classDescription: "RTCDataChannelEvent",
|
|
classID: DCEVENT_CID,
|
|
contractID: DCEVENT_CONTRACT,
|
|
QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports,
|
|
Ci.nsIDOMGlobalPropertyInitializer]),
|
|
|
|
init: function(win) { this._win = win; },
|
|
|
|
__init: function(type, dict) {
|
|
this.type = type;
|
|
this.__DOM_IMPL__.initEvent(type, dict.bubbles || false,
|
|
dict.cancelable || false);
|
|
this._channel = dict.channel;
|
|
},
|
|
|
|
get channel() { return this._channel; }
|
|
};
|
|
|
|
function RTCPeerConnectionIceEvent() {
|
|
this.type = this._candidate = null;
|
|
}
|
|
RTCPeerConnectionIceEvent.prototype = {
|
|
classDescription: "RTCPeerConnectionIceEvent",
|
|
classID: PC_ICEEVENT_CID,
|
|
contractID: PC_ICEEVENT_CONTRACT,
|
|
QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports,
|
|
Ci.nsIDOMGlobalPropertyInitializer]),
|
|
|
|
init: function(win) { this._win = win; },
|
|
|
|
__init: function(type, dict) {
|
|
this.type = type;
|
|
this.__DOM_IMPL__.initEvent(type, dict.bubbles || false,
|
|
dict.cancelable || false);
|
|
this._candidate = dict.candidate;
|
|
},
|
|
|
|
get candidate() { return this._candidate; }
|
|
};
|
|
|
|
function RTCPeerConnection() {
|
|
this._queue = [];
|
|
|
|
this._pc = null;
|
|
this._observer = null;
|
|
this._closed = false;
|
|
|
|
this._onCreateOfferSuccess = null;
|
|
this._onCreateOfferFailure = null;
|
|
this._onCreateAnswerSuccess = null;
|
|
this._onCreateAnswerFailure = null;
|
|
|
|
this._pendingType = null;
|
|
this._localType = null;
|
|
this._remoteType = null;
|
|
|
|
/**
|
|
* Everytime we get a request from content, we put it in the queue. If
|
|
* there are no pending operations though, we will execute it immediately.
|
|
* In PeerConnectionObserver, whenever we are notified that an operation
|
|
* has finished, we will check the queue for the next operation and execute
|
|
* if neccesary. The _pending flag indicates whether an operation is currently
|
|
* in progress.
|
|
*/
|
|
this._pending = false;
|
|
|
|
// States
|
|
this._iceGatheringState = this._iceConnectionState = "new";
|
|
|
|
// Deprecated callbacks
|
|
this._ongatheringchange = null;
|
|
this._onicechange = null;
|
|
}
|
|
RTCPeerConnection.prototype = {
|
|
classDescription: "mozRTCPeerConnection",
|
|
classID: PC_CID,
|
|
contractID: PC_CONTRACT,
|
|
QueryInterface: XPCOMUtils.generateQI([Ci.nsISupports,
|
|
Ci.nsIDOMGlobalPropertyInitializer,
|
|
Ci.nsISupportsWeakReference]),
|
|
init: function(win) { this._win = win; },
|
|
|
|
__init: function(rtcConfig) {
|
|
if (!rtcConfig.iceServers ||
|
|
!Services.prefs.getBoolPref("media.peerconnection.use_document_iceservers")) {
|
|
rtcConfig = {iceServers:
|
|
JSON.parse(Services.prefs.getCharPref("media.peerconnection.default_iceservers"))};
|
|
}
|
|
this._mustValidateRTCConfiguration(rtcConfig,
|
|
"RTCPeerConnection constructor passed invalid RTCConfiguration");
|
|
if (_globalPCList._networkdown) {
|
|
throw new this._win.DOMError("",
|
|
"Can't create RTCPeerConnections when the network is down");
|
|
}
|
|
|
|
this.makeGetterSetterEH("onaddstream");
|
|
this.makeGetterSetterEH("onicecandidate");
|
|
this.makeGetterSetterEH("onnegotiationneeded");
|
|
this.makeGetterSetterEH("onsignalingstatechange");
|
|
this.makeGetterSetterEH("onremovestream");
|
|
this.makeGetterSetterEH("ondatachannel");
|
|
this.makeGetterSetterEH("onconnection");
|
|
this.makeGetterSetterEH("onclosedconnection");
|
|
this.makeGetterSetterEH("oniceconnectionstatechange");
|
|
|
|
this._pc = Cc["@mozilla.org/peerconnection;1"].
|
|
createInstance(Ci.IPeerConnection);
|
|
this._observer = new PeerConnectionObserver(this);
|
|
this._winID = this._win.QueryInterface(Ci.nsIInterfaceRequestor)
|
|
.getInterface(Ci.nsIDOMWindowUtils).currentInnerWindowID;
|
|
|
|
// Add a reference to the PeerConnection to global list (before init).
|
|
_globalPCList.addPC(this);
|
|
|
|
// Nothing starts until ICE gathering completes.
|
|
this._queueOrRun({
|
|
func: this._getPC().initialize,
|
|
args: [this._observer, this._win, rtcConfig, Services.tm.currentThread],
|
|
wait: true
|
|
});
|
|
},
|
|
|
|
_getPC: function() {
|
|
if (!this._pc) {
|
|
throw new this._win.DOMError("",
|
|
"RTCPeerConnection is gone (did you enter Offline mode?)");
|
|
}
|
|
return this._pc;
|
|
},
|
|
|
|
/**
|
|
* Add a function to the queue or run it immediately if the queue is empty.
|
|
* Argument is an object with the func, args and wait properties; wait should
|
|
* be set to true if the function has a success/error callback that will
|
|
* call _executeNext, false if it doesn't have a callback.
|
|
*/
|
|
_queueOrRun: function(obj) {
|
|
this._checkClosed();
|
|
if (!this._pending) {
|
|
if (obj.type !== undefined) {
|
|
this._pendingType = obj.type;
|
|
}
|
|
obj.func.apply(this, obj.args);
|
|
if (obj.wait) {
|
|
this._pending = true;
|
|
}
|
|
} else {
|
|
this._queue.push(obj);
|
|
}
|
|
},
|
|
|
|
// Pick the next item from the queue and run it.
|
|
_executeNext: function() {
|
|
if (this._queue.length) {
|
|
let obj = this._queue.shift();
|
|
if (obj.type !== undefined) {
|
|
this._pendingType = obj.type;
|
|
}
|
|
obj.func.apply(this, obj.args);
|
|
if (!obj.wait) {
|
|
this._executeNext();
|
|
}
|
|
} else {
|
|
this._pending = false;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* An RTCConfiguration looks like this:
|
|
*
|
|
* { "iceServers": [ { url:"stun:23.21.150.121" },
|
|
* { url:"turn:turn.example.org",
|
|
* username:"jib", credential:"mypass"} ] }
|
|
*
|
|
* WebIDL normalizes structure for us, so we test well-formed stun/turn urls,
|
|
* but not validity of servers themselves, before passing along to C++.
|
|
* ErrorMsg is passed in to detail which array-entry failed, if any.
|
|
*/
|
|
_mustValidateRTCConfiguration: function(rtcConfig, errorMsg) {
|
|
var errorCtor = this._win.DOMError;
|
|
function nicerNewURI(uriStr, errorMsg) {
|
|
let ios = Cc['@mozilla.org/network/io-service;1'].getService(Ci.nsIIOService);
|
|
try {
|
|
return ios.newURI(uriStr, null, null);
|
|
} catch (e if (e.result == Cr.NS_ERROR_MALFORMED_URI)) {
|
|
throw new errorCtor("", errorMsg + " - malformed URI: " + uriStr);
|
|
}
|
|
}
|
|
function mustValidateServer(server) {
|
|
let url = nicerNewURI(server.url, errorMsg);
|
|
if (url.scheme in { turn:1, turns:1 }) {
|
|
if (!server.username) {
|
|
throw new errorCtor("", errorMsg + " - missing username: " + server.url);
|
|
}
|
|
if (!server.credential) {
|
|
throw new errorCtor("", errorMsg + " - missing credential: " +
|
|
server.url);
|
|
}
|
|
}
|
|
else if (!(url.scheme in { stun:1, stuns:1 })) {
|
|
throw new errorCtor("", errorMsg + " - improper scheme: " + url.scheme);
|
|
}
|
|
}
|
|
if (rtcConfig.iceServers) {
|
|
let len = rtcConfig.iceServers.length;
|
|
for (let i=0; i < len; i++) {
|
|
mustValidateServer (rtcConfig.iceServers[i], errorMsg);
|
|
}
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Constraints look like this:
|
|
*
|
|
* {
|
|
* mandatory: {"OfferToReceiveAudio": true, "OfferToReceiveVideo": true },
|
|
* optional: [{"VoiceActivityDetection": true}, {"FooBar": 10}]
|
|
* }
|
|
*
|
|
* We check for basic structure of constraints and the validity of
|
|
* mandatory constraints against those we support (fail if we don't).
|
|
* Unknown optional constraints may be of any type.
|
|
*/
|
|
_mustValidateConstraints: function(constraints, errorMsg) {
|
|
function isObject(obj) {
|
|
return obj && (typeof obj === "object");
|
|
}
|
|
function isArraylike(obj) {
|
|
return isObject(obj) && ("length" in obj);
|
|
}
|
|
const SUPPORTED_CONSTRAINTS = {
|
|
OfferToReceiveAudio:1,
|
|
OfferToReceiveVideo:1,
|
|
MozDontOfferDataChannel:1
|
|
};
|
|
const OTHER_KNOWN_CONSTRAINTS = {
|
|
VoiceActivityDetection:1,
|
|
IceTransports:1,
|
|
RequestIdentity:1
|
|
};
|
|
// Parse-aid: Testing for pilot error of missing outer block avoids
|
|
// otherwise silent no-op since both mandatory and optional are optional
|
|
if (!isObject(constraints) || Array.isArray(constraints)) {
|
|
throw new this._win.DOMError("", errorMsg);
|
|
}
|
|
if (constraints.mandatory) {
|
|
// Testing for pilot error of using [] on mandatory here throws nicer msg
|
|
// (arrays would throw in loop below regardless but with more cryptic msg)
|
|
if (!isObject(constraints.mandatory) || Array.isArray(constraints.mandatory)) {
|
|
throw new this._win.DOMError("",
|
|
errorMsg + " - malformed mandatory constraints");
|
|
}
|
|
for (let constraint in constraints.mandatory) {
|
|
if (!(constraint in SUPPORTED_CONSTRAINTS) &&
|
|
constraints.mandatory.hasOwnProperty(constraint)) {
|
|
throw new this._win.DOMError("", errorMsg + " - " +
|
|
((constraint in OTHER_KNOWN_CONSTRAINTS)? "unsupported" : "unknown") +
|
|
" mandatory constraint: " + constraint);
|
|
}
|
|
}
|
|
}
|
|
if (constraints.optional) {
|
|
if (!isArraylike(constraints.optional)) {
|
|
throw new this._win.DOMError("",
|
|
errorMsg + " - malformed optional constraint array");
|
|
}
|
|
let len = constraints.optional.length;
|
|
for (let i = 0; i < len; i += 1) {
|
|
if (!isObject(constraints.optional[i])) {
|
|
throw new this._win.DOMError("", errorMsg +
|
|
" - malformed optional constraint: " + constraints.optional[i]);
|
|
}
|
|
let constraints_per_entry = 0;
|
|
for (let constraint in constraints.optional[i]) {
|
|
if (constraints.optional[i].hasOwnProperty(constraint)) {
|
|
if (constraints_per_entry) {
|
|
throw new this._win.DOMError("", errorMsg +
|
|
" - optional constraint must be single key/value pair");
|
|
}
|
|
constraints_per_entry += 1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
},
|
|
|
|
// 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: function() {
|
|
if (this._closed) {
|
|
throw new this._win.DOMError("", "Peer connection is closed");
|
|
}
|
|
},
|
|
|
|
dispatchEvent: function(event) {
|
|
this.__DOM_IMPL__.dispatchEvent(event);
|
|
},
|
|
|
|
// Log error message to web console and window.onerror, if present.
|
|
reportError: function(msg, file, line) {
|
|
this.reportMsg(msg, file, line, Ci.nsIScriptError.exceptionFlag);
|
|
},
|
|
|
|
reportWarning: function(msg, file, line) {
|
|
this.reportMsg(msg, file, line, Ci.nsIScriptError.warningFlag);
|
|
},
|
|
|
|
reportMsg: function(msg, file, line, flag) {
|
|
let scriptErrorClass = Cc["@mozilla.org/scripterror;1"];
|
|
let scriptError = scriptErrorClass.createInstance(Ci.nsIScriptError);
|
|
scriptError.initWithWindowID(msg, file, null, line, 0, flag,
|
|
"content javascript", this._winID);
|
|
let console = Cc["@mozilla.org/consoleservice;1"].
|
|
getService(Ci.nsIConsoleService);
|
|
console.logMessage(scriptError);
|
|
|
|
if (flag != Ci.nsIScriptError.warningFlag) {
|
|
// Safely call onerror directly if present (necessary for testing)
|
|
try {
|
|
if (typeof this._win.onerror === "function") {
|
|
this._win.onerror(msg, file, line);
|
|
}
|
|
} catch(e) {
|
|
// If onerror itself throws, service it.
|
|
try {
|
|
let scriptError = scriptErrorClass.createInstance(Ci.nsIScriptError);
|
|
scriptError.initWithWindowID(e.message, e.fileName, null, e.lineNumber,
|
|
0, Ci.nsIScriptError.exceptionFlag,
|
|
"content javascript",
|
|
this._winID);
|
|
console.logMessage(scriptError);
|
|
} catch(e) {}
|
|
}
|
|
}
|
|
},
|
|
|
|
getEH: function(type) {
|
|
return this.__DOM_IMPL__.getEventHandler(type);
|
|
},
|
|
|
|
setEH: function(type, handler) {
|
|
this.__DOM_IMPL__.setEventHandler(type, handler);
|
|
},
|
|
|
|
makeGetterSetterEH: function(name) {
|
|
Object.defineProperty(this, name,
|
|
{
|
|
get:function() { return this.getEH(name); },
|
|
set:function(h) { return this.setEH(name, h); }
|
|
});
|
|
},
|
|
|
|
get onicechange() { return this._onicechange; },
|
|
get ongatheringchange() { return this._ongatheringchange; },
|
|
|
|
set onicechange(cb) {
|
|
this.deprecated("onicechange");
|
|
this._onicechange = cb;
|
|
},
|
|
set ongatheringchange(cb) {
|
|
this.deprecated("ongatheringchange");
|
|
this._ongatheringchange = cb;
|
|
},
|
|
|
|
deprecated: function(name) {
|
|
this.reportWarning(name + " is deprecated!", null, 0);
|
|
},
|
|
|
|
createOffer: function(onSuccess, onError, constraints) {
|
|
if (!constraints) {
|
|
constraints = {};
|
|
}
|
|
if (!onError) {
|
|
this.deprecated("calling createOffer without failureCallback");
|
|
}
|
|
this._mustValidateConstraints(constraints, "createOffer passed invalid constraints");
|
|
this._onCreateOfferSuccess = onSuccess;
|
|
this._onCreateOfferFailure = onError;
|
|
|
|
this._queueOrRun({
|
|
func: this._getPC().createOffer,
|
|
args: [constraints],
|
|
wait: true
|
|
});
|
|
},
|
|
|
|
_createAnswer: function(onSuccess, onError, constraints, provisional) {
|
|
if (!onError) {
|
|
this.deprecated("calling createAnswer without failureCallback");
|
|
}
|
|
this._onCreateAnswerSuccess = onSuccess;
|
|
this._onCreateAnswerFailure = onError;
|
|
|
|
if (!this.remoteDescription) {
|
|
|
|
this._observer.onCreateAnswerError(Ci.IPeerConnection.kInvalidState,
|
|
"setRemoteDescription not called");
|
|
return;
|
|
}
|
|
|
|
if (this.remoteDescription.type != "offer") {
|
|
|
|
this._observer.onCreateAnswerError(Ci.IPeerConnection.kInvalidState,
|
|
"No outstanding offer");
|
|
return;
|
|
}
|
|
|
|
// TODO: Implement provisional answer.
|
|
|
|
this._getPC().createAnswer(constraints);
|
|
},
|
|
|
|
createAnswer: function(onSuccess, onError, constraints, provisional) {
|
|
if (!constraints) {
|
|
constraints = {};
|
|
}
|
|
|
|
this._mustValidateConstraints(constraints, "createAnswer passed invalid constraints");
|
|
|
|
if (!provisional) {
|
|
provisional = false;
|
|
}
|
|
|
|
this._queueOrRun({
|
|
func: this._createAnswer,
|
|
args: [onSuccess, onError, constraints, provisional],
|
|
wait: true
|
|
});
|
|
},
|
|
|
|
setLocalDescription: function(desc, onSuccess, onError) {
|
|
// TODO -- if we have two setLocalDescriptions in the
|
|
// queue,this code overwrites the callbacks for the first
|
|
// one with the callbacks for the second one. See Bug 831759.
|
|
this._onSetLocalDescriptionSuccess = onSuccess;
|
|
this._onSetLocalDescriptionFailure = onError;
|
|
|
|
let type;
|
|
switch (desc.type) {
|
|
case "offer":
|
|
type = Ci.IPeerConnection.kActionOffer;
|
|
break;
|
|
case "answer":
|
|
type = Ci.IPeerConnection.kActionAnswer;
|
|
break;
|
|
case "pranswer":
|
|
throw new this._win.DOMError("", "pranswer not yet implemented");
|
|
default:
|
|
throw new this._win.DOMError("",
|
|
"Invalid type " + desc.type + " provided to setLocalDescription");
|
|
}
|
|
|
|
this._queueOrRun({
|
|
func: this._getPC().setLocalDescription,
|
|
args: [type, desc.sdp],
|
|
wait: true,
|
|
type: desc.type
|
|
});
|
|
},
|
|
|
|
setRemoteDescription: function(desc, onSuccess, onError) {
|
|
// TODO -- if we have two setRemoteDescriptions in the
|
|
// queue, this code overwrites the callbacks for the first
|
|
// one with the callbacks for the second one. See Bug 831759.
|
|
this._onSetRemoteDescriptionSuccess = onSuccess;
|
|
this._onSetRemoteDescriptionFailure = onError;
|
|
|
|
let type;
|
|
switch (desc.type) {
|
|
case "offer":
|
|
type = Ci.IPeerConnection.kActionOffer;
|
|
break;
|
|
case "answer":
|
|
type = Ci.IPeerConnection.kActionAnswer;
|
|
break;
|
|
case "pranswer":
|
|
throw new this._win.DOMError("", "pranswer not yet implemented");
|
|
default:
|
|
throw new this._win.DOMError("",
|
|
"Invalid type " + desc.type + " provided to setRemoteDescription");
|
|
}
|
|
|
|
this._queueOrRun({
|
|
func: this._getPC().setRemoteDescription,
|
|
args: [type, desc.sdp],
|
|
wait: true,
|
|
type: desc.type
|
|
});
|
|
},
|
|
|
|
updateIce: function(config, constraints) {
|
|
throw new this._win.DOMError("", "updateIce not yet implemented");
|
|
},
|
|
|
|
addIceCandidate: function(cand, onSuccess, onError) {
|
|
if (!cand.candidate && !cand.sdpMLineIndex) {
|
|
throw new this._win.DOMError("",
|
|
"Invalid candidate passed to addIceCandidate!");
|
|
}
|
|
this._onAddIceCandidateSuccess = onSuccess || null;
|
|
this._onAddIceCandidateError = onError || null;
|
|
|
|
this._queueOrRun({
|
|
func: this._getPC().addIceCandidate,
|
|
args: [cand.candidate, cand.sdpMid || "",
|
|
(cand.sdpMLineIndex === null)? 0 : cand.sdpMLineIndex + 1],
|
|
wait: true
|
|
});
|
|
},
|
|
|
|
addStream: function(stream, constraints) {
|
|
if (stream.currentTime === undefined) {
|
|
throw new this._win.DOMError("", "Invalid stream passed to addStream!");
|
|
}
|
|
// TODO: Implement constraints.
|
|
this._queueOrRun({
|
|
func: this._getPC().addStream,
|
|
args: [stream],
|
|
wait: false
|
|
});
|
|
},
|
|
|
|
removeStream: function(stream) {
|
|
//Bug 844295: Not implementing this functionality.
|
|
throw new this._win.DOMError("", "removeStream not yet implemented");
|
|
},
|
|
|
|
getStreamById: function(id) {
|
|
throw new this._win.DOMError("", "getStreamById not yet implemented");
|
|
},
|
|
|
|
close: function() {
|
|
this._queueOrRun({
|
|
func: this._getPC().close,
|
|
args: [false],
|
|
wait: false
|
|
});
|
|
this._closed = true;
|
|
this.changeIceConnectionState("closed");
|
|
},
|
|
|
|
getLocalStreams: function() {
|
|
this._checkClosed();
|
|
return this._getPC().localStreams;
|
|
},
|
|
|
|
getRemoteStreams: function() {
|
|
this._checkClosed();
|
|
return this._getPC().remoteStreams;
|
|
},
|
|
|
|
// Backwards-compatible attributes
|
|
get localStreams() {
|
|
this.deprecated("localStreams");
|
|
return this.getLocalStreams();
|
|
},
|
|
get remoteStreams() {
|
|
this.deprecated("remoteStreams");
|
|
return this.getRemoteStreams();
|
|
},
|
|
|
|
get localDescription() {
|
|
this._checkClosed();
|
|
let sdp = this._getPC().localDescription;
|
|
if (sdp.length == 0) {
|
|
return null;
|
|
}
|
|
return new this._win.mozRTCSessionDescription({ type: this._localType,
|
|
sdp: sdp });
|
|
},
|
|
|
|
get remoteDescription() {
|
|
this._checkClosed();
|
|
let sdp = this._getPC().remoteDescription;
|
|
if (sdp.length == 0) {
|
|
return null;
|
|
}
|
|
return new this._win.mozRTCSessionDescription({ type: this._remoteType,
|
|
sdp: sdp });
|
|
},
|
|
|
|
get iceGatheringState() { return this._iceGatheringState; },
|
|
get iceConnectionState() { return this._iceConnectionState; },
|
|
|
|
// Corresponds to constants in IPeerConnection.idl
|
|
_signalingStateMap: [
|
|
'invalid',
|
|
'stable',
|
|
'have-local-offer',
|
|
'have-remote-offer',
|
|
'have-local-pranswer',
|
|
'have-remote-pranswer',
|
|
'closed'
|
|
],
|
|
|
|
get signalingState() {
|
|
// checking for our local pc closed indication
|
|
// before invoking the pc methods.
|
|
if(this._closed) {
|
|
return "closed";
|
|
}
|
|
return this._signalingStateMap[this._getPC().signalingState];
|
|
},
|
|
|
|
changeIceGatheringState: function(state) {
|
|
this._iceGatheringState = state;
|
|
},
|
|
|
|
changeIceConnectionState: function(state) {
|
|
this._iceConnectionState = state;
|
|
this.dispatchEvent(new this._win.Event("iceconnectionstatechange"));
|
|
},
|
|
|
|
get readyState() {
|
|
this.deprecated("readyState");
|
|
// checking for our local pc closed indication
|
|
// before invoking the pc methods.
|
|
if(this._closed) {
|
|
return "closed";
|
|
}
|
|
|
|
var state="undefined";
|
|
switch (this._getPC().readyState) {
|
|
case Ci.IPeerConnection.kNew:
|
|
state = "new";
|
|
break;
|
|
case Ci.IPeerConnection.kNegotiating:
|
|
state = "negotiating";
|
|
break;
|
|
case Ci.IPeerConnection.kActive:
|
|
state = "active";
|
|
break;
|
|
case Ci.IPeerConnection.kClosing:
|
|
state = "closing";
|
|
break;
|
|
case Ci.IPeerConnection.kClosed:
|
|
state = "closed";
|
|
break;
|
|
}
|
|
return state;
|
|
},
|
|
|
|
createDataChannel: function(label, dict) {
|
|
this._checkClosed();
|
|
if (dict == undefined) {
|
|
dict = {};
|
|
}
|
|
if (dict.maxRetransmitNum != undefined) {
|
|
dict.maxRetransmits = dict.maxRetransmitNum;
|
|
this.reportWarning("Deprecated RTCDataChannelInit dictionary entry maxRetransmitNum used!", null, 0);
|
|
}
|
|
if (dict.outOfOrderAllowed != undefined) {
|
|
dict.ordered = !dict.outOfOrderAllowed; // the meaning is swapped with the name change
|
|
this.reportWarning("Deprecated RTCDataChannelInit dictionary entry outOfOrderAllowed used!", null, 0);
|
|
}
|
|
if (dict.preset != undefined) {
|
|
dict.negotiated = dict.preset;
|
|
this.reportWarning("Deprecated RTCDataChannelInit dictionary entry preset used!", null, 0);
|
|
}
|
|
if (dict.stream != undefined) {
|
|
dict.id = dict.stream;
|
|
this.reportWarning("Deprecated RTCDataChannelInit dictionary entry stream used!", null, 0);
|
|
}
|
|
|
|
if (dict.maxRetransmitTime != undefined &&
|
|
dict.maxRetransmits != undefined) {
|
|
throw new this._win.DOMError("",
|
|
"Both maxRetransmitTime and maxRetransmits cannot be provided");
|
|
}
|
|
let protocol;
|
|
if (dict.protocol == undefined) {
|
|
protocol = "";
|
|
} else {
|
|
protocol = dict.protocol;
|
|
}
|
|
|
|
// Must determine the type where we still know if entries are undefined.
|
|
let type;
|
|
if (dict.maxRetransmitTime != undefined) {
|
|
type = Ci.IPeerConnection.kDataChannelPartialReliableTimed;
|
|
} else if (dict.maxRetransmits != undefined) {
|
|
type = Ci.IPeerConnection.kDataChannelPartialReliableRexmit;
|
|
} else {
|
|
type = Ci.IPeerConnection.kDataChannelReliable;
|
|
}
|
|
|
|
// Synchronous since it doesn't block.
|
|
let channel = this._getPC().createDataChannel(
|
|
label, protocol, type, !dict.ordered, dict.maxRetransmitTime,
|
|
dict.maxRetransmits, dict.negotiated ? true : false,
|
|
dict.id != undefined ? dict.id : 0xFFFF
|
|
);
|
|
return channel;
|
|
},
|
|
|
|
connectDataConnection: function(localport, remoteport, numstreams) {
|
|
if (numstreams == undefined || numstreams <= 0) {
|
|
numstreams = 16;
|
|
}
|
|
this._queueOrRun({
|
|
func: this._getPC().connectDataConnection,
|
|
args: [localport, remoteport, numstreams],
|
|
wait: false
|
|
});
|
|
}
|
|
};
|
|
|
|
function RTCError(code, message) {
|
|
this.name = this.reasonName[Math.min(code, this.reasonName.length - 1)];
|
|
this.message = (typeof message === "string")? message : this.name;
|
|
this.__exposedProps__ = { name: "rw", message: "rw" };
|
|
}
|
|
RTCError.prototype = {
|
|
// These strings must match those defined in the WebRTC spec.
|
|
reasonName: [
|
|
"NO_ERROR", // Should never happen -- only used for testing
|
|
"INVALID_CONSTRAINTS_TYPE",
|
|
"INVALID_CANDIDATE_TYPE",
|
|
"INVALID_MEDIASTREAM_TRACK",
|
|
"INVALID_STATE",
|
|
"INVALID_SESSION_DESCRIPTION",
|
|
"INCOMPATIBLE_SESSION_DESCRIPTION",
|
|
"INCOMPATIBLE_CONSTRAINTS",
|
|
"INCOMPATIBLE_MEDIASTREAMTRACK",
|
|
"INTERNAL_ERROR"
|
|
]
|
|
};
|
|
|
|
// This is a separate object because we don't want to expose it to DOM.
|
|
function PeerConnectionObserver(dompc) {
|
|
this._dompc = dompc;
|
|
}
|
|
PeerConnectionObserver.prototype = {
|
|
QueryInterface: XPCOMUtils.generateQI([Ci.IPeerConnectionObserver,
|
|
Ci.nsISupportsWeakReference]),
|
|
|
|
dispatchEvent: function(event) {
|
|
this._dompc.dispatchEvent(event);
|
|
},
|
|
|
|
callCB: function(callback, arg) {
|
|
if (callback) {
|
|
try {
|
|
callback(arg);
|
|
} catch(e) {
|
|
// A content script (user-provided) callback threw an error. We don't
|
|
// want this to take down peerconnection, but we still want the user
|
|
// to see it, so we catch it, report it, and move on.
|
|
this._dompc.reportError(e.message, e.fileName, e.lineNumber);
|
|
}
|
|
}
|
|
},
|
|
|
|
onCreateOfferSuccess: function(sdp) {
|
|
this.callCB(this._dompc._onCreateOfferSuccess,
|
|
new this._dompc._win.mozRTCSessionDescription({ type: "offer",
|
|
sdp: sdp }));
|
|
this._dompc._executeNext();
|
|
},
|
|
|
|
onCreateOfferError: function(code, message) {
|
|
this.callCB(this._dompc._onCreateOfferFailure, new RTCError(code, message));
|
|
this._dompc._executeNext();
|
|
},
|
|
|
|
onCreateAnswerSuccess: function(sdp) {
|
|
this.callCB (this._dompc._onCreateAnswerSuccess,
|
|
new this._dompc._win.mozRTCSessionDescription({ type: "answer",
|
|
sdp: sdp }));
|
|
this._dompc._executeNext();
|
|
},
|
|
|
|
onCreateAnswerError: function(code, message) {
|
|
this.callCB(this._dompc._onCreateAnswerFailure, new RTCError(code, message));
|
|
this._dompc._executeNext();
|
|
},
|
|
|
|
onSetLocalDescriptionSuccess: function() {
|
|
this._dompc._localType = this._dompc._pendingType;
|
|
this._dompc._pendingType = null;
|
|
this.callCB(this._dompc._onSetLocalDescriptionSuccess);
|
|
|
|
// Until we support generating trickle ICE candidates,
|
|
// we go ahead and trigger a call of onicecandidate here.
|
|
// This is to provide some level of compatibility with
|
|
// scripts that expect this behavior (which is how Chrome
|
|
// signals that no further trickle candidates will be sent).
|
|
// TODO: This needs to be removed when Bug 842459 lands.
|
|
this.foundIceCandidate(null);
|
|
|
|
this._dompc._executeNext();
|
|
},
|
|
|
|
onSetRemoteDescriptionSuccess: function() {
|
|
this._dompc._remoteType = this._dompc._pendingType;
|
|
this._dompc._pendingType = null;
|
|
this.callCB(this._dompc._onSetRemoteDescriptionSuccess);
|
|
this._dompc._executeNext();
|
|
},
|
|
|
|
onSetLocalDescriptionError: function(code, message) {
|
|
this._dompc._pendingType = null;
|
|
this.callCB(this._dompc._onSetLocalDescriptionFailure,
|
|
new RTCError(code, message));
|
|
this._dompc._executeNext();
|
|
},
|
|
|
|
onSetRemoteDescriptionError: function(code, message) {
|
|
this._dompc._pendingType = null;
|
|
this.callCB(this._dompc._onSetRemoteDescriptionFailure,
|
|
new RTCError(code, message));
|
|
this._dompc._executeNext();
|
|
},
|
|
|
|
onAddIceCandidateSuccess: function() {
|
|
this._dompc._pendingType = null;
|
|
this.callCB(this._dompc._onAddIceCandidateSuccess);
|
|
this._dompc._executeNext();
|
|
},
|
|
|
|
onAddIceCandidateError: function(code, message) {
|
|
this._dompc._pendingType = null;
|
|
this.callCB(this._dompc._onAddIceCandidateError, new RTCError(code, message));
|
|
this._dompc._executeNext();
|
|
},
|
|
|
|
handleIceStateChanges: function(iceState) {
|
|
var histogram = Services.telemetry.getHistogramById("WEBRTC_ICE_SUCCESS_RATE");
|
|
switch (iceState) {
|
|
case Ci.IPeerConnection.kIceWaiting:
|
|
this._dompc.changeIceConnectionState("new");
|
|
this.callCB(this._dompc.ongatheringchange, "complete");
|
|
this.callCB(this._onicechange, "starting");
|
|
// Now that the PC is ready to go, execute any pending operations.
|
|
this._dompc._executeNext();
|
|
break;
|
|
case Ci.IPeerConnection.kIceChecking:
|
|
this._dompc.changeIceConnectionState("checking");
|
|
this.callCB(this._onicechange, "checking");
|
|
break;
|
|
case Ci.IPeerConnection.kIceGathering:
|
|
this._dompc.changeIceGatheringState("gathering");
|
|
this.callCB(this._ongatheringchange, "gathering");
|
|
break;
|
|
case Ci.IPeerConnection.kIceConnected:
|
|
// ICE gathering complete.
|
|
histogram.add(true);
|
|
this._dompc.changeIceConnectionState("connected");
|
|
this.callCB(this._onicechange, "connected");
|
|
break;
|
|
case Ci.IPeerConnection.kIceFailed:
|
|
histogram.add(false);
|
|
this._dompc.changeIceConnectionState("failed");
|
|
this.callCB(this._onicechange, "failed");
|
|
break;
|
|
default:
|
|
// Unknown ICE state!
|
|
this._dompc.reportWarning("Unhandled ice state: " + iceState, null, 0);
|
|
break;
|
|
}
|
|
},
|
|
|
|
onStateChange: function(state) {
|
|
switch (state) {
|
|
case Ci.IPeerConnectionObserver.kSignalingState:
|
|
this.callCB(this._dompc.onsignalingstatechange,
|
|
this._dompc.signalingState);
|
|
break;
|
|
|
|
case Ci.IPeerConnectionObserver.kIceState:
|
|
this.handleIceStateChanges(this._dompc._pc.iceState);
|
|
break;
|
|
|
|
case Ci.IPeerConnectionObserver.kSdpState:
|
|
// No-op
|
|
break;
|
|
|
|
case Ci.IPeerConnectionObserver.kSipccState:
|
|
// No-op
|
|
break;
|
|
|
|
default:
|
|
this._dompc.reportWarning("Unhandled state type: " + state, null, 0);
|
|
break;
|
|
}
|
|
},
|
|
|
|
onAddStream: function(stream) {
|
|
this.dispatchEvent(new this._dompc._win.MediaStreamEvent("addstream",
|
|
{ stream: stream }));
|
|
},
|
|
|
|
onRemoveStream: function(stream, type) {
|
|
this.dispatchEvent(new this._dompc._win.MediaStreamEvent("removestream",
|
|
{ stream: stream }));
|
|
},
|
|
|
|
foundIceCandidate: function(c) {
|
|
this.dispatchEvent(new this._dompc._win.RTCPeerConnectionIceEvent("icecandidate",
|
|
{ candidate: c }));
|
|
},
|
|
|
|
notifyDataChannel: function(channel) {
|
|
this.dispatchEvent(new this._dompc._win.RTCDataChannelEvent("datachannel",
|
|
{ channel: channel }));
|
|
},
|
|
|
|
notifyConnection: function() {
|
|
this.dispatchEvent(new this._dompc._win.Event("connection"));
|
|
},
|
|
|
|
notifyClosedConnection: function() {
|
|
this.dispatchEvent(new this._dompc._win.Event("closedconnection"));
|
|
}
|
|
};
|
|
|
|
this.NSGetFactory = XPCOMUtils.generateNSGetFactory(
|
|
[GlobalPCList, RTCIceCandidate, RTCSessionDescription, RTCPeerConnection,
|
|
RTCPeerConnectionIceEvent, MediaStreamEvent, RTCDataChannelEvent]
|
|
);
|