diff options
Diffstat (limited to 'ecomp-sdk-app/src/main/webapp/app/fusion/scripts/webrtc/RTCMultiConnection.js')
| -rw-r--r-- | ecomp-sdk-app/src/main/webapp/app/fusion/scripts/webrtc/RTCMultiConnection.js | 6788 |
1 files changed, 6788 insertions, 0 deletions
diff --git a/ecomp-sdk-app/src/main/webapp/app/fusion/scripts/webrtc/RTCMultiConnection.js b/ecomp-sdk-app/src/main/webapp/app/fusion/scripts/webrtc/RTCMultiConnection.js new file mode 100644 index 000000000..449e8d591 --- /dev/null +++ b/ecomp-sdk-app/src/main/webapp/app/fusion/scripts/webrtc/RTCMultiConnection.js @@ -0,0 +1,6788 @@ +// Last time updated at Monday, December 21st, 2015, 5:25:26 PM + +// Quick-Demo for newbies: http://jsfiddle.net/c46de0L8/ +// Another simple demo: http://jsfiddle.net/zar6fg60/ + +// Latest file can be found here: https://cdn.webrtc-experiment.com/RTCMultiConnection.js + +// Muaz Khan - www.MuazKhan.com +// MIT License - www.WebRTC-Experiment.com/licence +// Documentation - www.RTCMultiConnection.org/docs +// FAQ - www.RTCMultiConnection.org/FAQ +// Changes log - www.RTCMultiConnection.org/changes-log/ +// Demos - www.WebRTC-Experiment.com/RTCMultiConnection + +// _________________________ +// RTCMultiConnection-v2.2.2 + +(function() { + + // RMC == RTCMultiConnection + // usually page-URL is used as channel-id + // you can always override it! + // www.RTCMultiConnection.org/docs/channel-id/ + window.RMCDefaultChannel = location.href.replace(/\/|:|#|\?|\$|\^|%|\.|`|~|!|\+|@|\[|\||]|\|*. /g, '').split('\n').join('').split('\r').join(''); + + // www.RTCMultiConnection.org/docs/constructor/ + window.RTCMultiConnection = function(channel) { + // an instance of constructor + var connection = this; + + // a reference to RTCMultiSession + var rtcMultiSession; + + // setting default channel or channel passed through constructor + connection.channel = channel || RMCDefaultChannel; + + // to allow single user to join multiple rooms; + // you can change this property at runtime! + connection.isAcceptNewSession = true; + + // www.RTCMultiConnection.org/docs/open/ + connection.open = function(args) { + connection.isAcceptNewSession = false; + + // www.RTCMultiConnection.org/docs/session-initiator/ + // you can always use this property to determine room owner! + connection.isInitiator = true; + + var dontTransmit = false; + + // a channel can contain multiple rooms i.e. sessions + if (args) { + if (isString(args)) { + connection.sessionid = args; + } else { + if (!isNull(args.transmitRoomOnce)) { + connection.transmitRoomOnce = args.transmitRoomOnce; + } + + if (!isNull(args.dontTransmit)) { + dontTransmit = args.dontTransmit; + } + + if (!isNull(args.sessionid)) { + connection.sessionid = args.sessionid; + } + } + } + + // if firebase && if session initiator + if (connection.socket && connection.socket.remove) { + connection.socket.remove(); + } + + if (!connection.sessionid) connection.sessionid = connection.channel; + connection.sessionDescription = { + sessionid: connection.sessionid, + userid: connection.userid, + session: connection.session, + extra: connection.extra + }; + + if (!connection.sessionDescriptions[connection.sessionDescription.sessionid]) { + connection.numberOfSessions++; + connection.sessionDescriptions[connection.sessionDescription.sessionid] = connection.sessionDescription; + } + + // connect with signaling channel + initRTCMultiSession(function() { + // "captureUserMediaOnDemand" is disabled by default. + // invoke "getUserMedia" only when first participant found. + rtcMultiSession.captureUserMediaOnDemand = args ? !!args.captureUserMediaOnDemand : false; + + if (args && args.onMediaCaptured) { + connection.onMediaCaptured = args.onMediaCaptured; + } + + // for session-initiator, user-media is captured as soon as "open" is invoked. + if (!rtcMultiSession.captureUserMediaOnDemand) captureUserMedia(function() { + rtcMultiSession.initSession({ + sessionDescription: connection.sessionDescription, + dontTransmit: dontTransmit + }); + + invokeMediaCaptured(connection); + }); + + if (rtcMultiSession.captureUserMediaOnDemand) { + rtcMultiSession.initSession({ + sessionDescription: connection.sessionDescription, + dontTransmit: dontTransmit + }); + } + }); + return connection.sessionDescription; + }; + + // www.RTCMultiConnection.org/docs/connect/ + connection.connect = function(sessionid) { + // a channel can contain multiple rooms i.e. sessions + if (sessionid) { + connection.sessionid = sessionid; + } + + // connect with signaling channel + initRTCMultiSession(function() { + log('Signaling channel is ready.'); + }); + + return this; + }; + + // www.RTCMultiConnection.org/docs/join/ + connection.join = joinSession; + + // www.RTCMultiConnection.org/docs/send/ + connection.send = function(data, _channel) { + if (connection.numberOfConnectedUsers <= 0) { + // no connections + setTimeout(function() { + // try again + connection.send(data, _channel); + }, 1000); + return; + } + + // send file/data or /text + if (!data) + throw 'No file, data or text message to share.'; + + // connection.send([file1, file2, file3]) + // you can share multiple files, strings or data objects using "send" method! + if (data instanceof Array && !isNull(data[0].size) && !isNull(data[0].type)) { + // this mechanism can cause failure for subsequent packets/data + // on Firefox especially; and on chrome as well! + // todo: need to use setTimeout instead. + for (var i = 0; i < data.length; i++) { + data[i].size && data[i].type && connection.send(data[i], _channel); + } + return; + } + + // File or Blob object MUST have "type" and "size" properties + if (!isNull(data.size) && !isNull(data.type)) { + if (!connection.enableFileSharing) { + throw '"enableFileSharing" boolean MUST be "true" to support file sharing.'; + } + + if (!rtcMultiSession.fileBufferReader) { + initFileBufferReader(connection, function(fbr) { + rtcMultiSession.fileBufferReader = fbr; + connection.send(data, _channel); + }); + return; + } + + var extra = merge({ + userid: connection.userid + }, data.extra || connection.extra); + + rtcMultiSession.fileBufferReader.readAsArrayBuffer(data, function(uuid) { + rtcMultiSession.fileBufferReader.getNextChunk(uuid, function(nextChunk, isLastChunk, extra) { + if (_channel) _channel.send(nextChunk); + else rtcMultiSession.send(nextChunk); + }); + }, extra); + } else { + // to allow longest string messages + // and largest data objects + // or anything of any size! + // to send multiple data objects concurrently! + + TextSender.send({ + text: data, + channel: rtcMultiSession, + _channel: _channel, + connection: connection + }); + } + }; + + function initRTCMultiSession(onSignalingReady) { + if (screenFrame) { + loadScreenFrame(); + } + + // RTCMultiSession is the backbone object; + // this object MUST be initialized once! + if (rtcMultiSession) return onSignalingReady(); + + // your everything is passed over RTCMultiSession constructor! + rtcMultiSession = new RTCMultiSession(connection, onSignalingReady); + } + + connection.disconnect = function() { + if (rtcMultiSession) rtcMultiSession.disconnect(); + rtcMultiSession = null; + }; + + function joinSession(session, joinAs) { + if (isString(session)) { + connection.skipOnNewSession = true; + } + + if (!rtcMultiSession) { + log('Signaling channel is not ready. Connecting...'); + // connect with signaling channel + initRTCMultiSession(function() { + log('Signaling channel is connected. Joining the session again...'); + setTimeout(function() { + joinSession(session, joinAs); + }, 1000); + }); + return; + } + + // connection.join('sessionid'); + if (isString(session)) { + if (connection.sessionDescriptions[session]) { + session = connection.sessionDescriptions[session]; + } else + return setTimeout(function() { + log('Session-Descriptions not found. Rechecking..'); + joinSession(session, joinAs); + }, 1000); + } + + // connection.join('sessionid', { audio: true }); + if (joinAs) { + return captureUserMedia(function() { + session.oneway = true; + joinSession(session); + }, joinAs); + } + + if (!session || !session.userid || !session.sessionid) { + error('missing arguments', arguments); + + var error = 'Invalid data passed over "connection.join" method.'; + connection.onstatechange({ + userid: 'browser', + extra: {}, + name: 'Unexpected data detected.', + reason: error + }); + + throw error; + } + + if (!connection.dontOverrideSession) { + connection.session = session.session; + } + + var extra = connection.extra || session.extra || {}; + + // todo: need to verify that if-block statement works as expected. + // expectations: if it is oneway streaming; or if it is data-only connection + // then, it shouldn't capture user-media on participant's side. + if (session.oneway || isData(session)) { + rtcMultiSession.joinSession(session, extra); + } else { + captureUserMedia(function() { + rtcMultiSession.joinSession(session, extra); + }); + } + } + + var isFirstSession = true; + + // www.RTCMultiConnection.org/docs/captureUserMedia/ + + function captureUserMedia(callback, _session, dontCheckChromExtension) { + // capture user's media resources + var session = _session || connection.session; + + if (isEmpty(session)) { + if (callback) callback(); + return; + } + + // you can force to skip media capturing! + if (connection.dontCaptureUserMedia) { + return callback(); + } + + // if it is data-only connection + // if it is one-way connection and current user is participant + if (isData(session) || (!connection.isInitiator && session.oneway)) { + // www.RTCMultiConnection.org/docs/attachStreams/ + connection.attachStreams = []; + return callback(); + } + + var constraints = { + audio: !!session.audio ? { + mandatory: {}, + optional: [{ + chromeRenderToAssociatedSink: true + }] + } : false, + video: !!session.video + }; + + // if custom audio device is selected + if (connection._mediaSources.audio) { + constraints.audio.optional.push({ + sourceId: connection._mediaSources.audio + }); + } + + // if custom video device is selected + if (connection._mediaSources.video) { + constraints.video = { + optional: [{ + sourceId: connection._mediaSources.video + }] + }; + } + + // for connection.session = {}; + if (!session.screen && !constraints.audio && !constraints.video) { + return callback(); + } + + var screen_constraints = { + audio: false, + video: { + mandatory: { + chromeMediaSource: DetectRTC.screen.chromeMediaSource, + maxWidth: screen.width > 1920 ? screen.width : 1920, + maxHeight: screen.height > 1080 ? screen.height : 1080 + }, + optional: [] + } + }; + + if (isFirefox && session.screen) { + if (location.protocol !== 'https:') { + return error(SCREEN_COMMON_FAILURE); + } + warn(Firefox_Screen_Capturing_Warning); + + screen_constraints.video = merge(screen_constraints.video.mandatory, { + mozMediaSource: 'window', // mozMediaSource is redundant here + mediaSource: 'window' // 'screen' || 'window' + }); + + // Firefox is supporting audio+screen from single getUserMedia request + // audio+video+screen will become audio+screen for Firefox + // because Firefox isn't supporting multi-streams feature version < 38 + // version >38 supports multi-stream sharing. + // we can use: firefoxVersion < 38 + // however capturing audio and screen using single getUserMedia is a better option + if (constraints.audio /* && !session.video */ ) { + screen_constraints.audio = true; + constraints = {}; + } + + delete screen_constraints.video.chromeMediaSource; + } + + // if screen is prompted + if (session.screen) { + if (isChrome && DetectRTC.screen.extensionid != ReservedExtensionID) { + useCustomChromeExtensionForScreenCapturing = true; + } + + if (isChrome && !useCustomChromeExtensionForScreenCapturing && !dontCheckChromExtension && !DetectRTC.screen.sourceId) { + listenEventHandler('message', onIFrameCallback); + + function onIFrameCallback(event) { + if (event.data && event.data.chromeMediaSourceId) { + // this event listener is no more needed + window.removeEventListener('message', onIFrameCallback); + + var sourceId = event.data.chromeMediaSourceId; + + DetectRTC.screen.sourceId = sourceId; + DetectRTC.screen.chromeMediaSource = 'desktop'; + + if (sourceId == 'PermissionDeniedError') { + var mediaStreamError = { + message: location.protocol == 'https:' ? 'User denied to share content of his screen.' : SCREEN_COMMON_FAILURE, + name: 'PermissionDeniedError', + constraintName: screen_constraints, + session: session + }; + currentUserMediaRequest.mutex = false; + DetectRTC.screen.sourceId = null; + return connection.onMediaError(mediaStreamError); + } + + captureUserMedia(callback, _session); + } + + if (event.data && event.data.chromeExtensionStatus) { + warn('Screen capturing extension status is:', event.data.chromeExtensionStatus); + DetectRTC.screen.chromeMediaSource = 'screen'; + captureUserMedia(callback, _session, true); + } + } + + if (!screenFrame) { + loadScreenFrame(); + } + + screenFrame.postMessage(); + return; + } + + // check if screen capturing extension is installed. + if (isChrome && useCustomChromeExtensionForScreenCapturing && !dontCheckChromExtension && DetectRTC.screen.chromeMediaSource == 'screen' && DetectRTC.screen.extensionid) { + if (DetectRTC.screen.extensionid == ReservedExtensionID && document.domain.indexOf('webrtc-experiment.com') == -1) { + return captureUserMedia(callback, _session, true); + } + + log('checking if chrome extension is installed.'); + DetectRTC.screen.getChromeExtensionStatus(function(status) { + if (status == 'installed-enabled') { + DetectRTC.screen.chromeMediaSource = 'desktop'; + } + + captureUserMedia(callback, _session, true); + log('chrome extension is installed?', DetectRTC.screen.chromeMediaSource == 'desktop'); + }); + return; + } + + if (isChrome && useCustomChromeExtensionForScreenCapturing && DetectRTC.screen.chromeMediaSource == 'desktop' && !DetectRTC.screen.sourceId) { + DetectRTC.screen.getSourceId(function(sourceId) { + if (sourceId == 'PermissionDeniedError') { + var mediaStreamError = { + message: 'User denied to share content of his screen.', + name: 'PermissionDeniedError', + constraintName: screen_constraints, + session: session + }; + currentUserMediaRequest.mutex = false; + DetectRTC.screen.chromeMediaSource = 'desktop'; + return connection.onMediaError(mediaStreamError); + } + + if (sourceId == 'No-Response') { + error('Chrome extension seems not available. Make sure that manifest.json#L16 has valid content-script matches pointing to your URL.'); + DetectRTC.screen.chromeMediaSource = 'screen'; + return captureUserMedia(callback, _session, true); + } + + captureUserMedia(callback, _session, true); + }); + return; + } + + if (isChrome && DetectRTC.screen.chromeMediaSource == 'desktop') { + screen_constraints.video.mandatory.chromeMediaSourceId = DetectRTC.screen.sourceId; + } + + var _isFirstSession = isFirstSession; + + _captureUserMedia(screen_constraints, constraints.audio || constraints.video ? function() { + + if (_isFirstSession) isFirstSession = true; + + _captureUserMedia(constraints, callback); + } : callback); + } else _captureUserMedia(constraints, callback, session.audio && !session.video); + + function _captureUserMedia(forcedConstraints, forcedCallback, isRemoveVideoTracks, dontPreventSSLAutoAllowed) { + connection.onstatechange({ + userid: 'browser', + extra: {}, + name: 'fetching-usermedia', + reason: 'About to capture user-media with constraints: ' + toStr(forcedConstraints) + }); + + + if (connection.preventSSLAutoAllowed && !dontPreventSSLAutoAllowed && isChrome) { + // if navigator.customGetUserMediaBar.js is missing + if (!navigator.customGetUserMediaBar) { + loadScript(connection.resources.customGetUserMediaBar, function() { + _captureUserMedia(forcedConstraints, forcedCallback, isRemoveVideoTracks, dontPreventSSLAutoAllowed); + }); + return; + } + + navigator.customGetUserMediaBar(forcedConstraints, function() { + _captureUserMedia(forcedConstraints, forcedCallback, isRemoveVideoTracks, true); + }, function() { + connection.onMediaError({ + name: 'PermissionDeniedError', + message: 'User denied permission.', + constraintName: forcedConstraints, + session: session + }); + }); + return; + } + + var mediaConfig = { + onsuccess: function(stream, returnBack, idInstance, streamid) { + onStreamSuccessCallback(stream, returnBack, idInstance, streamid, forcedConstraints, forcedCallback, isRemoveVideoTracks, screen_constraints, constraints, session); + }, + onerror: function(e, constraintUsed) { + // http://goo.gl/hrwF1a + if (isFirefox) { + if (e == 'PERMISSION_DENIED') { + e = { + message: '', + name: 'PermissionDeniedError', + constraintName: constraintUsed, + session: session + }; + } + } + + if (isFirefox && constraintUsed.video && constraintUsed.video.mozMediaSource) { + mediaStreamError = { + message: Firefox_Screen_Capturing_Warning, + name: e.name || 'PermissionDeniedError', + constraintName: constraintUsed, + session: session + }; + + connection.onMediaError(mediaStreamError); + return; + } + + if (isString(e)) { + return connection.onMediaError({ + message: 'Unknown Error', + name: e, + constraintName: constraintUsed, + session: session + }); + } + + // it seems that chrome 35+ throws "DevicesNotFoundError" exception + // when any of the requested media is either denied or absent + if (e.name && (e.name == 'PermissionDeniedError' || e.name == 'DevicesNotFoundError')) { + var mediaStreamError = 'Either: '; + mediaStreamError += '\n Media resolutions are not permitted.'; + mediaStreamError += '\n Another application is using same media device.'; + mediaStreamError += '\n Media device is not attached or drivers not installed.'; + mediaStreamError += '\n You denied access once and it is still denied.'; + + if (e.message && e.message.length) { + mediaStreamError += '\n ' + e.message; + } + + mediaStreamError = { + message: mediaStreamError, + name: e.name, + constraintName: constraintUsed, + session: session + }; + + connection.onMediaError(mediaStreamError); + + if (isChrome && (session.audio || session.video)) { + // todo: this snippet fails if user has two or more + // microphone/webcam attached. + DetectRTC.load(function() { + // it is possible to check presence of the microphone before using it! + if (session.audio && !DetectRTC.hasMicrophone) { + warn('It seems that you have no microphone attached to your device/system.'); + session.audio = session.audio = false; + + if (!session.video) { + alert('It seems that you are capturing microphone and there is no device available or access is denied. Reloading...'); + location.reload(); + } + } + + // it is possible to check presence of the webcam before using it! + if (session.video && !DetectRTC.hasWebcam) { + warn('It seems that you have no webcam attached to your device/system.'); + session.video = session.video = false; + + if (!session.audio) { + alert('It seems that you are capturing webcam and there is no device available or access is denied. Reloading...'); + location.reload(); + } + } + + if (!DetectRTC.hasMicrophone && !DetectRTC.hasWebcam) { + alert('It seems that either both microphone/webcam are not available or access is denied. Reloading...'); + location.reload(); + } else if (!connection.getUserMediaPromptedOnce) { + // make maximum two tries! + connection.getUserMediaPromptedOnce = true; + captureUserMedia(callback, session); + } + }); + } + } + + if (e.name && e.name == 'ConstraintNotSatisfiedError') { + var mediaStreamError = 'Either: '; + mediaStreamError += '\n You are prompting unknown media resolutions.'; + mediaStreamError += '\n You are using invalid media constraints.'; + + if (e.message && e.message.length) { + mediaStreamError += '\n ' + e.message; + } + + mediaStreamError = { + message: mediaStreamError, + name: e.name, + constraintName: constraintUsed, + session: session + }; + + connection.onMediaError(mediaStreamError); + } + + if (session.screen) { + if (isFirefox) { + error(Firefox_Screen_Capturing_Warning); + } else if (location.protocol !== 'https:') { + if (!isNodeWebkit && (location.protocol == 'file:' || location.protocol == 'http:')) { + error('You cannot use HTTP or file protocol for screen capturing. You must either use HTTPs or chrome extension page or Node-Webkit page.'); + } + } else { + error('Unable to detect actual issue. Maybe "deprecated" screen capturing flag was not set using command line or maybe you clicked "No" button or maybe chrome extension returned invalid "sourceId". Please install chrome-extension: http://bit.ly/webrtc-screen-extension'); + } + } + + currentUserMediaRequest.mutex = false; + + // to make sure same stream can be captured again! + var idInstance = JSON.stringify(constraintUsed); + if (currentUserMediaRequest.streams[idInstance]) { + delete currentUserMediaRequest.streams[idInstance]; + } + }, + mediaConstraints: connection.mediaConstraints || {} + }; + + mediaConfig.constraints = forcedConstraints || constraints; + mediaConfig.connection = connection; + getUserMedia(mediaConfig); + } + } + + function onStreamSuccessCallback(stream, returnBack, idInstance, streamid, forcedConstraints, forcedCallback, isRemoveVideoTracks, screen_constraints, constraints, session) { + if (!streamid) streamid = getRandomString(); + + connection.onstatechange({ + userid: 'browser', + extra: {}, + name: 'usermedia-fetched', + reason: 'Captured user media using constraints: ' + toStr(forcedConstraints) + }); + + if (isRemoveVideoTracks) { + stream = convertToAudioStream(stream); + } + + connection.localStreamids.push(streamid); + stream.onended = function() { + if (streamedObject.mediaElement && !streamedObject.mediaElement.parentNode && document.getElementById(stream.streamid)) { + streamedObject.mediaElement = document.getElementById(stream.streamid); + } + + // when a stream is stopped; it must be removed from "attachStreams" array + connection.attachStreams.forEach(function(_stream, index) { + if (_stream == stream) { + delete connection.attachStreams[index]; + connection.attachStreams = swap(connection.attachStreams); + } + }); + + onStreamEndedHandler(streamedObject, connection); + + if (connection.streams[streamid]) { + connection.removeStream(streamid); + } + + // if user clicks "stop" button to close screen sharing + var _stream = connection.streams[streamid]; + if (_stream && _stream.sockets.length) { + _stream.sockets.forEach(function(socket) { + socket.send({ + streamid: _stream.streamid, + stopped: true + }); + }); + } + + currentUserMediaRequest.mutex = false; + // to make sure same stream can be captured again! + if (currentUserMediaRequest.streams[idInstance]) { + delete currentUserMediaRequest.streams[idInstance]; + } + + // to allow re-capturing of the screen + DetectRTC.screen.sourceId = null; + }; + + if (!isIE) { + stream.streamid = streamid; + stream.isScreen = forcedConstraints == screen_constraints; + stream.isVideo = forcedConstraints == constraints && !!constraints.video; + stream.isAudio = forcedConstraints == constraints && !!constraints.audio && !constraints.video; + + // if muted stream is negotiated + stream.preMuted = { + audio: stream.getAudioTracks().length && !stream.getAudioTracks()[0].enabled, + video: stream.getVideoTracks().length && !stream.getVideoTracks()[0].enabled + }; + } + + var mediaElement = createMediaElement(stream, session); + mediaElement.muted = true; + + var streamedObject = { + stream: stream, + streamid: streamid, + mediaElement: mediaElement, + blobURL: mediaElement.mozSrcObject ? URL.createObjectURL(stream) : mediaElement.src, + type: 'local', + userid: connection.userid, + extra: connection.extra, + session: session, + isVideo: !!stream.isVideo, + isAudio: !!stream.isAudio, + isScreen: !!stream.isScreen, + isInitiator: !!connection.isInitiator, + rtcMultiConnection: connection + }; + + if (isFirstSession) { + connection.attachStreams.push(stream); + } + isFirstSession = false; + + connection.streams[streamid] = connection._getStream(streamedObject); + + if (!returnBack) { + connection.onstream(streamedObject); + } + + if (connection.setDefaultEventsForMediaElement) { + connection.setDefaultEventsForMediaElement(mediaElement, streamid); + } + + if (forcedCallback) forcedCallback(stream, streamedObject); + + if (connection.onspeaking) { + initHark({ + stream: stream, + streamedObject: streamedObject, + connection: connection + }); + } + } + + // www.RTCMultiConnection.org/docs/captureUserMedia/ + connection.captureUserMedia = captureUserMedia; + + // www.RTCMultiConnection.org/docs/leave/ + connection.leave = function(userid) { + if (!rtcMultiSession) return; + + isFirstSession = true; + + if (userid) { + connection.eject(userid); + return; + } + + rtcMultiSession.leave(); + }; + + // www.RTCMultiConnection.org/docs/eject/ + connection.eject = function(userid) { + if (!connection.isInitiator) throw 'Only session-initiator can eject a user.'; + if (!connection.peers[userid]) throw 'You ejected invalid user.'; + connection.peers[userid].sendCustomMessage({ + ejected: true + }); + }; + + // www.RTCMultiConnection.org/docs/close/ + connection.close = function() { + // close entire session + connection.autoCloseEntireSession = true; + connection.leave(); + }; + + // www.RTCMultiConnection.org/docs/renegotiate/ + connection.renegotiate = function(stream, session) { + if (connection.numberOfConnectedUsers <= 0) { + // no connections + setTimeout(function() { + // try again + connection.renegotiate(stream, session); + }, 1000); + return; + } + + rtcMultiSession.addStream({ + renegotiate: session || merge({ + oneway: true + }, connection.session), + stream: stream + }); + }; + + connection.attachExternalStream = function(stream, isScreen) { + var constraints = {}; + if (stream.getAudioTracks && stream.getAudioTracks().length) { + constraints.audio = true; + } + if (stream.getVideoTracks && stream.getVideoTracks().length) { + constraints.video = true; + } + + var screen_constraints = { + video: { + chromeMediaSource: 'fake' + } + }; + var forcedConstraints = isScreen ? screen_constraints : constraints; + onStreamSuccessCallback(stream, false, '', null, forcedConstraints, false, false, screen_constraints, constraints, constraints); + }; + + // www.RTCMultiConnection.org/docs/addStream/ + connection.addStream = function(session, socket) { + // www.RTCMultiConnection.org/docs/renegotiation/ + + if (connection.numberOfConnectedUsers <= 0) { + // no connections + setTimeout(function() { + // try again + connection.addStream(session, socket); + }, 1000); + return; + } + + // renegotiate new media stream + if (session) { + var isOneWayStreamFromParticipant; + if (!connection.isInitiator && session.oneway) { + session.oneway = false; + isOneWayStreamFromParticipant = true; + } + + captureUserMedia(function(stream) { + if (isOneWayStreamFromParticipant) { + session.oneway = true; + } + addStream(stream); + }, session); + } else addStream(); + + function addStream(stream) { + rtcMultiSession.addStream({ + stream: stream, + renegotiate: session || connection.session, + socket: socket + }); + } + }; + + // www.RTCMultiConnection.org/docs/removeStream/ + connection.removeStream = function(streamid, dontRenegotiate) { + if (connection.numberOfConnectedUsers <= 0) { + // no connections + setTimeout(function() { + // try again + connection.removeStream(streamid, dontRenegotiate); + }, 1000); + return; + } + + if (!streamid) streamid = 'all'; + if (!isString(streamid) || streamid.search(/all|audio|video|screen/gi) != -1) { + function _detachStream(_stream, config) { + if (config.local && _stream.type != 'local') return; + if (config.remote && _stream.type != 'remote') return; + + // connection.removeStream({screen:true}); + if (config.screen && !!_stream.isScreen) { + connection.detachStreams.push(_stream.streamid); + } + + // connection.removeStream({audio:true}); + if (config.audio && !!_stream.isAudio) { + connection.detachStreams.push(_stream.streamid); + } + + // connection.removeStream({video:true}); + if (config.video && !!_stream.isVideo) { + connection.detachStreams.push(_stream.streamid); + } + + // connection.removeStream({}); + if (!config.audio && !config.video && !config.screen) { + connection.detachStreams.push(_stream.streamid); + } + + if (connection.detachStreams.indexOf(_stream.streamid) != -1) { + log('removing stream', _stream.streamid); + onStreamEndedHandler(_stream, connection); + + if (config.stop) { + connection.stopMediaStream(_stream.stream); + } + } + } + + for (var stream in connection.streams) { + if (connection._skip.indexOf(stream) == -1) { + _stream = connection.streams[stream]; + + if (streamid == 'all') _detachStream(_stream, { + audio: true, + video: true, + screen: true + }); + + else if (isString(streamid)) { + // connection.removeStream('screen'); + var config = {}; + config[streamid] = true; + _detachStream(_stream, config); + } else _detachStream(_stream, streamid); + } + } + + if (!dontRenegotiate && connection.detachStreams.length) { + connection.renegotiate(); + } + + return; + } + + var stream = connection.streams[streamid]; + + // detach pre-attached streams + if (!stream) return warn('No such stream exists. Stream-id:', streamid); + + // www.RTCMultiConnection.org/docs/detachStreams/ + connection.detachStreams.push(stream.streamid); + + log('removing stream', stream.streamid); + onStreamEndedHandler(stream, connection); + + // todo: how to allow "stop" function? + // connection.stopMediaStream(stream.stream) + + if (!dontRenegotiate) { + connection.renegotiate(); + } + }; + + connection.switchStream = function(session) { + if (connection.numberOfConnectedUsers <= 0) { + // no connections + setTimeout(function() { + // try again + connection.switchStream(session); + }, 1000); + return; + } + + connection.removeStream('all', true); + connection.addStream(session); + }; + + // www.RTCMultiConnection.org/docs/sendCustomMessage/ + connection.sendCustomMessage = function(message) { + if (!rtcMultiSession || !rtcMultiSession.defaultSocket) { + return setTimeout(function() { + connection.sendCustomMessage(message); + }, 1000); + } + + rtcMultiSession.defaultSocket.send({ + customMessage: true, + message: message + }); + }; + + // set RTCMultiConnection defaults on constructor invocation + setDefaults(connection); + }; + + function RTCMultiSession(connection, callbackForSignalingReady) { + var socketObjects = {}; + var sockets = []; + var rtcMultiSession = this; + var participants = {}; + + if (!rtcMultiSession.fileBufferReader && connection.session.data && connection.enableFileSharing) { + initFileBufferReader(connection, function(fbr) { + rtcMultiSession.fileBufferReader = fbr; + }); + } + + var textReceiver = new TextReceiver(connection); + + function onDataChannelMessage(e) { + if (e.data.checkingPresence && connection.channels[e.userid]) { + connection.channels[e.userid].send({ + presenceDetected: true + }); + return; + } + + if (e.data.presenceDetected && connection.peers[e.userid]) { + connection.peers[e.userid].connected = true; + return; + } + + if (e.data.type === 'text') { + textReceiver.receive(e.data, e.userid, e.extra); + } else { + if (connection.autoTranslateText) { + e.original = e.data; + connection.Translator.TranslateText(e.data, function(translatedText) { + e.data = translatedText; + connection.onmessage(e); + }); + } else connection.onmessage(e); + } + } + + function onNewSession(session) { + if (connection.skipOnNewSession) return; + + if (!session.session) session.session = {}; + if (!session.extra) session.extra = {}; + + // todo: make sure this works as expected. + // i.e. "onNewSession" should be fired only for + // sessionid that is passed over "connect" method. + if (connection.sessionid && session.sessionid != connection.sessionid) return; + + if (connection.onNewSession) { + session.join = function(forceSession) { + if (!forceSession) return connection.join(session); + + for (var f in forceSession) { + session.session[f] = forceSession[f]; + } + + // keeping previous state + var isDontCaptureUserMedia = connection.dontCaptureUserMedia; + + connection.dontCaptureUserMedia = false; + connection.captureUserMedia(function() { + connection.dontCaptureUserMedia = true; + connection.join(session); + + // returning back previous state + connection.dontCaptureUserMedia = isDontCaptureUserMedia; + }, forceSession); + }; + if (!session.extra) session.extra = {}; + + return connection.onNewSession(session); + } + + connection.join(session); + } + + function updateSocketForLocalStreams(socket) { + for (var i = 0; i < connection.localStreamids.length; i++) { + var streamid = connection.localStreamids[i]; + if (connection.streams[streamid]) { + // using "sockets" array to keep references of all sockets using + // this media stream; so we can fire "onStreamEndedHandler" among all users. + connection.streams[streamid].sockets.push(socket); + } + } + } + + function newPrivateSocket(_config) { + var socketConfig = { + channel: _config.channel, + onmessage: socketResponse, + onopen: function(_socket) { + if (_socket) socket = _socket; + + if (isofferer && !peer) { + peerConfig.session = connection.session; + if (!peer) peer = new PeerConnection(); + peer.create('offer', peerConfig); + } + + _config.socketIndex = socket.index = sockets.length; + socketObjects[socketConfig.channel] = socket; + sockets[_config.socketIndex] = socket; + + updateSocketForLocalStreams(socket); + + if (!socket.__push) { + socket.__push = socket.send; + socket.send = function(message) { + message.userid = message.userid || connection.userid; + message.extra = message.extra || connection.extra || {}; + + socket.__push(message); + }; + } + } + }; + + socketConfig.callback = function(_socket) { + socket = _socket; + socketConfig.onopen(); + }; + + var socket = connection.openSignalingChannel(socketConfig); + if (socket) socketConfig.onopen(socket); + + var isofferer = _config.isofferer, + peer; + + var peerConfig = { + onopen: onChannelOpened, + onicecandidate: function(candidate) { + if (!connection.candidates) throw 'ICE candidates are mandatory.'; + if (!connection.iceProtocols) throw 'At least one must be true; UDP or TCP.'; + + var iceCandidates = connection.candidates; + + var stun = iceCandidates.stun; + var turn = iceCandidates.turn; + + if (!isNull(iceCandidates.reflexive)) stun = iceCandidates.reflexive; + if (!isNull(iceCandidates.relay)) turn = iceCandidates.relay; + + if (!iceCandidates.host && !!candidate.candidate.match(/a=candidate.*typ host/g)) return; + if (!turn && !!candidate.candidate.match(/a=candidate.*typ relay/g)) return; + if (!stun && !!candidate.candidate.match(/a=candidate.*typ srflx/g)) return; + + var protocol = connection.iceProtocols; + + if (!protocol.udp && !!candidate.candidate.match(/a=candidate.* udp/g)) return; + if (!protocol.tcp && !!candidate.candidate.match(/a=candidate.* tcp/g)) return; + + if (!window.selfNPObject) window.selfNPObject = candidate; + + socket && socket.send({ + candidate: JSON.stringify({ + candidate: candidate.candidate, + sdpMid: candidate.sdpMid, + sdpMLineIndex: candidate.sdpMLineIndex + }) + }); + }, + onmessage: function(data) { + if (!data) return; + + var abToStr = ab2str(data); + if (abToStr.indexOf('"userid":') != -1) { + abToStr = JSON.parse(abToStr); + onDataChannelMessage(abToStr); + } else if (data instanceof ArrayBuffer || data instanceof DataView) { + if (!connection.enableFileSharing) { + throw 'It seems that receiving data is either "Blob" or "File" but file sharing is disabled.'; + } + + if (!rtcMultiSession.fileBufferReader) { + var that = this; + initFileBufferReader(connection, function(fbr) { + rtcMultiSession.fileBufferReader = fbr; + that.onmessage(data); + }); + return; + } + + var fileBufferReader = rtcMultiSession.fileBufferReader; + + fileBufferReader.convertToObject(data, function(chunk) { + if (chunk.maxChunks || chunk.readyForNextChunk) { + // if target peer requested next chunk + if (chunk.readyForNextChunk) { + fileBufferReader.getNextChunk(chunk.uuid, function(nextChunk, isLastChunk, extra) { + rtcMultiSession.send(nextChunk); + }); + return; + } + + // if chunk is received + fileBufferReader.addChunk(chunk, function(promptNextChunk) { + // request next chunk + rtcMultiSession.send(promptNextChunk); + }); + return; + } + + connection.onmessage({ + data: chunk, + userid: _config.userid, + extra: _config.extra + }); + }); + return; + } + }, + onaddstream: function(stream, session) { + session = session || _config.renegotiate || connection.session; + + // if it is data-only connection; then return. + if (isData(session)) return; + + if (session.screen && (session.audio || session.video)) { + if (!_config.gotAudioOrVideo) { + // audio/video are fired earlier than screen + _config.gotAudioOrVideo = true; + session.screen = false; + } else { + // screen stream is always fired later + session.audio = false; + session.video = false; + } + } + + var preMuted = {}; + + if (_config.streaminfo) { + var streaminfo = _config.streaminfo.split('----'); + var strInfo = JSON.parse(streaminfo[streaminfo.length - 1]); + + if (!isIE) { + stream.streamid = strInfo.streamid; + stream.isScreen = !!strInfo.isScreen; + stream.isVideo = !!strInfo.isVideo; + stream.isAudio = !!strInfo.isAudio; + preMuted = strInfo.preMuted; + } + + streaminfo.pop(); + _config.streaminfo = streaminfo.join('----'); + } + + var mediaElement = createMediaElement(stream, merge({ + remote: true + }, session)); + + if (connection.setDefaultEventsForMediaElement) { + connection.setDefaultEventsForMediaElement(mediaElement, stream.streamid); + } + + if (!isPluginRTC && !stream.getVideoTracks().length) { + function eventListener() { + setTimeout(function() { + mediaElement.muted = false; + afterRemoteStreamStartedFlowing({ + mediaElement: mediaElement, + session: session, + stream: stream, + preMuted: preMuted + }); + }, 3000); + + mediaElement.removeEventListener('play', eventListener); + } + return mediaElement.addEventListener('play', eventListener, false); + } + + waitUntilRemoteStreamStartsFlowing({ + mediaElement: mediaElement, + session: session, + stream: stream, + preMuted: preMuted + }); + }, + + onremovestream: function(stream) { + if (stream && stream.streamid) { + stream = connection.streams[stream.streamid]; + if (stream) { + log('on:stream:ended via on:remove:stream', stream); + onStreamEndedHandler(stream, connection); + } + } else log('on:remove:stream', stream); + }, + + onclose: function(e) { + e.extra = _config.extra; + e.userid = _config.userid; + connection.onclose(e); + + // suggested in #71 by "efaj" + if (connection.channels[e.userid]) { + delete connection.channels[e.userid]; + } + }, + onerror: function(e) { + e.extra = _config.extra; + e.userid = _config.userid; + connection.onerror(e); + }, + + oniceconnectionstatechange: function(event) { + log('oniceconnectionstatechange', toStr(event)); + + if (peer.connection && peer.connection.iceConnectionState == 'connected' && peer.connection.iceGatheringState == 'complete' && peer.connection.signalingState == 'stable' && connection.numberOfConnectedUsers == 1) { + connection.onconnected({ + userid: _config.userid, + extra: _config.extra, + peer: connection.peers[_config.userid], + targetuser: _config.userinfo + }); + } + + if (!connection.isInitiator && peer.connection && peer.connection.iceConnectionState == 'connected' && peer.connection.iceGatheringState == 'complete' && peer.connection.signalingState == 'stable' && connection.numberOfConnectedUsers == 1) { + connection.onstatechange({ + userid: _config.userid, + extra: _config.extra, + name: 'connected-with-initiator', + reason: 'ICE connection state seems connected; gathering state is completed; and signaling state is stable.' + }); + } + + if (connection.peers[_config.userid] && connection.peers[_config.userid].oniceconnectionstatechange) { + connection.peers[_config.userid].oniceconnectionstatechange(event); + } + + // if ICE connectivity check is failed; renegotiate or redial + if (connection.peers[_config.userid] && connection.peers[_config.userid].peer.connection.iceConnectionState == 'failed') { + connection.onfailed({ + userid: _config.userid, + extra: _config.extra, + peer: connection.peers[_config.userid], + targetuser: _config.userinfo + }); + } + + if (connection.peers[_config.userid] && connection.peers[_config.userid].peer.connection.iceConnectionState == 'disconnected') { + !peer.connection.renegotiate && connection.ondisconnected({ + userid: _config.userid, + extra: _config.extra, + peer: connection.peers[_config.userid], + targetuser: _config.userinfo + }); + peer.connection.renegotiate = false; + } + + if (!connection.autoReDialOnFailure) return; + + if (connection.peers[_config.userid]) { + if (connection.peers[_config.userid].peer.connection.iceConnectionState != 'disconnected') { + _config.redialing = false; + } + + if (connection.peers[_config.userid].peer.connection.iceConnectionState == 'disconnected' && !_config.redialing) { + _config.redialing = true; + warn('Peer connection is closed.', toStr(connection.peers[_config.userid].peer.connection), 'ReDialing..'); + connection.peers[_config.userid].socket.send({ + redial: true + }); + + // to make sure all old "remote" streams are also removed! + connection.streams.remove({ + remote: true, + userid: _config.userid + }); + } + } + }, + + onsignalingstatechange: function(event) { + log('onsignalingstatechange', toStr(event)); + }, + + attachStreams: connection.dontAttachStream ? [] : connection.attachStreams, + iceServers: connection.iceServers, + rtcConfiguration: connection.rtcConfiguration, + bandwidth: connection.bandwidth, + sdpConstraints: connection.sdpConstraints, + optionalArgument: connection.optionalArgument, + disableDtlsSrtp: connection.disableDtlsSrtp, + dataChannelDict: connection.dataChannelDict, + preferSCTP: connection.preferSCTP, + + onSessionDescription: function(sessionDescription, streaminfo) { + sendsdp({ + sdp: sessionDescription, + socket: socket, + streaminfo: streaminfo + }); + }, + trickleIce: connection.trickleIce, + processSdp: connection.processSdp, + sendStreamId: function(stream) { + socket && socket.send({ + streamid: stream.streamid, + isScreen: !!stream.isScreen, + isAudio: !!stream.isAudio, + isVideo: !!stream.isVideo + }); + }, + rtcMultiConnection: connection + }; + + function waitUntilRemoteStreamStartsFlowing(args) { + // chrome for android may have some features missing + if (isMobileDevice || isPluginRTC || (isNull(connection.waitUntilRemoteStreamStartsFlowing) || !connection.waitUntilRemoteStreamStartsFlowing)) { + return afterRemoteStreamStartedFlowing(args); + } + + if (!args.numberOfTimes) args.numberOfTimes = 0; + args.numberOfTimes++; + + if (!(args.mediaElement.readyState <= HTMLMediaElement.HAVE_CURRENT_DATA || args.mediaElement.paused || args.mediaElement.currentTime <= 0)) { + return afterRemoteStreamStartedFlowing(args); + } + + if (args.numberOfTimes >= 60) { // wait 60 seconds while video is delivered! + return socket.send({ + failedToReceiveRemoteVideo: true, + streamid: args.stream.streamid + }); + } + + setTimeout(function() { + log('Waiting for incoming remote stream to be started flowing: ' + args.numberOfTimes + ' seconds.'); + waitUntilRemoteStreamStartsFlowing(args); + }, 900); + } + + function initFakeChannel() { + if (!connection.fakeDataChannels || connection.channels[_config.userid]) return; + + // for non-data connections; allow fake data sender! + if (!connection.session.data) { + var fakeChannel = { + send: function(data) { + socket.send({ + fakeData: data + }); + }, + readyState: 'open' + }; + // connection.channels['user-id'].send(data); + connection.channels[_config.userid] = { + channel: fakeChannel, + send: function(data) { + this.channel.send(data); + } + }; + peerConfig.onopen(fakeChannel); + } + } + + function afterRemoteStreamStartedFlowing(args) { + var mediaElement = args.mediaElement; + var session = args.session; + var stream = args.stream; + + stream.onended = function() { + if (streamedObject.mediaElement && !streamedObject.mediaElement.parentNode && document.getElementById(stream.streamid)) { + streamedObject.mediaElement = document.getElementById(stream.streamid); + } + + onStreamEndedHandler(streamedObject, connection); + }; + + var streamedObject = { + mediaElement: mediaElement, + + stream: stream, + streamid: stream.streamid, + session: session || connection.session, + + blobURL: isPluginRTC ? '' : mediaElement.mozSrcObject ? URL.createObjectURL(stream) : mediaElement.src, + type: 'remote', + + extra: _config.extra, + userid: _config.userid, + + isVideo: isPluginRTC ? !!session.video : !!stream.isVideo, + isAudio: isPluginRTC ? !!session.audio && !session.video : !!stream.isAudio, + isScreen: !!stream.isScreen, + isInitiator: !!_config.isInitiator, + + rtcMultiConnection: connection, + socket: socket + }; + + // connection.streams['stream-id'].mute({audio:true}) + connection.streams[stream.streamid] = connection._getStream(streamedObject); + connection.onstream(streamedObject); + + if (!isEmpty(args.preMuted) && (args.preMuted.audio || args.preMuted.video)) { + var fakeObject = merge({}, streamedObject); + fakeObject.session = merge(fakeObject.session, args.preMuted); + + fakeObject.isAudio = !!fakeObject.session.audio && !fakeObject.session.video; + fakeObject.isVideo = !!fakeObject.session.video; + fakeObject.isScreen = false; + + connection.onmute(fakeObject); + } + + log('on:add:stream', streamedObject); + + onSessionOpened(); + + if (connection.onspeaking) { + initHark({ + stream: stream, + streamedObject: streamedObject, + connection: connection + }); + } + } + + function onChannelOpened(channel) { + _config.channel = channel; + + // connection.channels['user-id'].send(data); + connection.channels[_config.userid] = { + channel: _config.channel, + send: function(data) { + connection.send(data, this.channel); + } + }; + + connection.onopen({ + extra: _config.extra, + userid: _config.userid, + channel: channel + }); + + // fetch files from file-queue + for (var q in connection.fileQueue) { + connection.send(connection.fileQueue[q], channel); + } + + if (isData(connection.session)) onSessionOpened(); + + if (connection.partOfScreen && connection.partOfScreen.sharing) { + connection.peers[_config.userid].sharePartOfScreen(connection.partOfScreen); + } + } + + function updateSocket() { + // todo: need to check following {if-block} MUST not affect "redial" process + if (socket.userid == _config.userid) + return; + + socket.userid = _config.userid; + sockets[_config.socketIndex] = socket; + + connection.numberOfConnectedUsers++; + // connection.peers['user-id'].addStream({audio:true}) + connection.peers[_config.userid] = { + socket: socket, + peer: peer, + userid: _config.userid, + extra: _config.extra, + userinfo: _config.userinfo, + addStream: function(session00) { + // connection.peers['user-id'].addStream({audio: true, video: true); + + connection.addStream(session00, this.socket); + }, + removeStream: function(streamid) { + if (!connection.streams[streamid]) + return warn('No such stream exists. Stream-id:', streamid); + + this.peer.connection.removeStream(connection.streams[streamid].stream); + this.renegotiate(); + }, + renegotiate: function(stream, session) { + // connection.peers['user-id'].renegotiate(); + + connection.renegotiate(stream, session); + }, + changeBandwidth: function(bandwidth) { + // connection.peers['user-id'].changeBandwidth(); + + if (!bandwidth) throw 'You MUST pass bandwidth object.'; + if (isString(bandwidth)) throw 'Pass object for bandwidth instead of string; e.g. {audio:10, video:20}'; + + // set bandwidth for self + this.peer.bandwidth = bandwidth; + + // ask remote user to synchronize bandwidth + this.socket.send({ + changeBandwidth: true, + bandwidth: bandwidth + }); + }, + sendCustomMessage: function(message) { + // connection.peers['user-id'].sendCustomMessage(); + + this.socket.send({ + customMessage: true, + message: message + }); + }, + onCustomMessage: function(message) { + log('Received "private" message from', this.userid, + isString(message) ? message : toStr(message)); + }, + drop: function(dontSendMessage) { + // connection.peers['user-id'].drop(); + + for (var stream in connection.streams) { + if (connection._skip.indexOf(stream) == -1) { + stream = connection.streams[stream]; + + if (stream.userid == connection.userid && stream.type == 'local') { + this.peer.connection.removeStream(stream.stream); + onStreamEndedHandler(stream, connection); + } + + if (stream.type == 'remote' && stream.userid == this.userid) { + onStreamEndedHandler(stream, connection); + } + } + } + + !dontSendMessage && this.socket.send({ + drop: true + }); + }, + hold: function(holdMLine) { + // connection.peers['user-id'].hold(); + + if (peer.prevCreateType == 'answer') { + this.socket.send({ + unhold: true, + holdMLine: holdMLine || 'both', + takeAction: true + }); + return; + } + + this.socket.send({ + hold: true, + holdMLine: holdMLine || 'both' + }); + + this.peer.hold = true; + this.fireHoldUnHoldEvents({ + kind: holdMLine, + isHold: true, + userid: connection.userid, + remoteUser: this.userid + }); + }, + unhold: function(holdMLine) { + // connection.peers['user-id'].unhold(); + + if (peer.prevCreateType == 'answer') { + this.socket.send({ + unhold: true, + holdMLine: holdMLine || 'both', + takeAction: true + }); + return; + } + + this.socket.send({ + unhold: true, + holdMLine: holdMLine || 'both' + }); + + this.peer.hold = false; + this.fireHoldUnHoldEvents({ + kind: holdMLine, + isHold: false, + userid: connection.userid, + remoteUser: this.userid + }); + }, + fireHoldUnHoldEvents: function(e) { + // this method is for inner usages only! + + var isHold = e.isHold; + var kind = e.kind; + var userid = e.remoteUser || e.userid; + + // hold means inactive a specific media line! + // a media line can contain multiple synced sources (ssrc) + // i.e. a media line can reference multiple tracks! + // that's why hold will affect all relevant tracks in a specific media line! + for (var stream in connection.streams) { + if (connection._skip.indexOf(stream) == -1) { + stream = connection.streams[stream]; + + if (stream.userid == userid) { + // www.RTCMultiConnection.org/docs/onhold/ + if (isHold) + connection.onhold(merge({ + kind: kind + }, stream)); + + // www.RTCMultiConnection.org/docs/onunhold/ + if (!isHold) + connection.onunhold(merge({ + kind: kind + }, stream)); + } + } + } + }, + redial: function() { + // connection.peers['user-id'].redial(); + + // 1st of all; remove all relevant remote media streams + for (var stream in connection.streams) { + if (connection._skip.indexOf(stream) == -1) { + stream = connection.streams[stream]; + + if (stream.userid == this.userid && stream.type == 'remote') { + onStreamEndedHandler(stream, connection); + } + } + } + + log('ReDialing...'); + + socket.send({ + recreatePeer: true + }); + + peer = new PeerConnection(); + peer.create('offer', peerConfig); + }, + sharePartOfScreen: function(args) { + // www.RTCMultiConnection.org/docs/onpartofscreen/ + var that = this; + var lastScreenshot = ''; + + function partOfScreenCapturer() { + // if stopped + if (that.stopPartOfScreenSharing) { + that.stopPartOfScreenSharing = false; + + if (connection.onpartofscreenstopped) { + connection.onpartofscreenstopped(); + } + return; + } + + // if paused + if (that.pausePartOfScreenSharing) { + if (connection.onpartofscreenpaused) { + connection.onpartofscreenpaused(); + } + + return setTimeout(partOfScreenCapturer, args.interval || 200); + } + + capturePartOfScreen({ + element: args.element, + connection: connection, + callback: function(screenshot) { + if (!connection.channels[that.userid]) { + throw 'No such data channel exists.'; + } + + // don't share repeated content + if (screenshot != lastScreenshot) { + lastScreenshot = screenshot; + connection.channels[that.userid].send({ + screenshot: screenshot, + isPartOfScreen: true + }); + } + + // "once" can be used to share single screenshot + !args.once && setTimeout(partOfScreenCapturer, args.interval || 200); + } + }); + } + + partOfScreenCapturer(); + }, + getConnectionStats: function(callback, interval) { + if (!callback) throw 'callback is mandatory.'; + + if (!window.getConnectionStats) { + loadScript(connection.resources.getConnectionStats, invoker); + } else invoker(); + + function invoker() { + RTCPeerConnection.prototype.getConnectionStats = window.getConnectionStats; + peer.connection && peer.connection.getConnectionStats(callback, interval); + } + }, + takeSnapshot: function(callback) { + takeSnapshot({ + userid: this.userid, + connection: connection, + callback: callback + }); + } + }; + } + + function onSessionOpened() { + // original conferencing infrastructure! + if (connection.isInitiator && getLength(participants) && getLength(participants) <= connection.maxParticipantsAllowed) { + if (!connection.session.oneway && !connection.session.broadcast) { + defaultSocket.send({ + sessionid: connection.sessionid, + newParticipant: _config.userid || socket.channel, + userData: { + userid: _config.userid || socket.channel, + extra: _config.extra + } + }); + } + } + + // 1st: renegotiation is supported only on chrome + // 2nd: must not renegotiate same media multiple times + // 3rd: todo: make sure that target-user has no such "renegotiated" media. + if (_config.userinfo.browser == 'chrome' && !_config.renegotiatedOnce) { + // this code snippet is added to make sure that "previously-renegotiated" streams are also + // renegotiated to this new user + for (var rSession in connection.renegotiatedSessions) { + _config.renegotiatedOnce = true; + + if (connection.renegotiatedSessions[rSession] && connection.renegotiatedSessions[rSession].stream) { + connection.peers[_config.userid].renegotiate(connection.renegotiatedSessions[rSession].stream, connection.renegotiatedSessions[rSession].session); + } + } + } + } + + function socketResponse(response) { + if (isRMSDeleted) return; + + if (response.userid == connection.userid) + return; + + if (response.sdp) { + _config.userid = response.userid; + _config.extra = response.extra || {}; + _config.renegotiate = response.renegotiate; + _config.streaminfo = response.streaminfo; + _config.isInitiator = response.isInitiator; + _config.userinfo = response.userinfo; + + var sdp = JSON.parse(response.sdp); + + if (sdp.type == 'offer') { + // to synchronize SCTP or RTP + peerConfig.preferSCTP = !!response.preferSCTP; + connection.fakeDataChannels = !!response.fakeDataChannels; + } + + // initializing fake channel + initFakeChannel(); + + sdpInvoker(sdp, response.labels); + } + + if (response.candidate) { + peer && peer.addIceCandidate(JSON.parse(response.candidate)); + } + + if (response.streamid) { + if (!rtcMultiSession.streamids) { + rtcMultiSession.streamids = {}; + } + if (!rtcMultiSession.streamids[response.streamid]) { + rtcMultiSession.streamids[response.streamid] = response.streamid; + connection.onstreamid(response); + } + } + + if (response.mute || response.unmute) { + if (response.promptMuteUnmute) { + if (!connection.privileges.canMuteRemoteStream) { + connection.onstatechange({ + userid: response.userid, + extra: response.extra, + name: 'mute-request-denied', + reason: response.userid + ' tried to mute your stream; however "privileges.canMuteRemoteStream" is "false".' + }); + return; + } + + if (connection.streams[response.streamid]) { + if (response.mute && !connection.streams[response.streamid].muted) { + connection.streams[response.streamid].mute(response.session); + } + if (response.unmute && connection.streams[response.streamid].muted) { + connection.streams[response.streamid].unmute(response.session); + } + } + } else { + var streamObject = {}; + if (connection.streams[response.streamid]) { + streamObject = connection.streams[response.streamid]; + } + + var session = response.session; + var fakeObject = merge({}, streamObject); + fakeObject.session = session; + + fakeObject.isAudio = !!fakeObject.session.audio && !fakeObject.session.video; + fakeObject.isVideo = !!fakeObject.session.video; + fakeObject.isScreen = !!fakeObject.session.screen; + + if (response.mute) connection.onmute(fakeObject || response); + if (response.unmute) connection.onunmute(fakeObject || response); + } + } + + if (response.isVolumeChanged) { + log('Volume of stream: ' + response.streamid + ' has changed to: ' + response.volume); + if (connection.streams[response.streamid]) { + var mediaElement = connection.streams[response.streamid].mediaElement; + if (mediaElement) mediaElement.volume = response.volume; + } + } + + // to stop local stream + if (response.stopped) { + if (connection.streams[response.streamid]) { + onStreamEndedHandler(connection.streams[response.streamid], connection); + } + } + + // to stop remote stream + if (response.promptStreamStop /* && !connection.isInitiator */ ) { + if (!connection.privileges.canStopRemoteStream) { + connection.onstatechange({ + userid: response.userid, + extra: response.extra, + name: 'stop-request-denied', + reason: response.userid + ' tried to stop your stream; however "privileges.canStopRemoteStream" is "false".' + }); + return; + } + warn('Remote stream has been manually stopped!'); + if (connection.streams[response.streamid]) { + connection.streams[response.streamid].stop(); + } + } + + if (response.left) { + // firefox is unable to stop remote streams + // firefox doesn't auto stop streams when peer.close() is called. + if (isFirefox) { + var userLeft = response.userid; + for (var stream in connection.streams) { + stream = connection.streams[stream]; + if (stream.userid == userLeft) { + connection.stopMediaStream(stream); + onStreamEndedHandler(stream, connection); + } + } + } + + if (peer && peer.connection) { + // todo: verify if-block's 2nd condition + if (peer.connection.signalingState != 'closed' && peer.connection.iceConnectionState.search(/disconnected|failed/gi) == -1) { + peer.connection.close(); + } + peer.connection = null; + } + + if (participants[response.userid]) delete participants[response.userid]; + + if (response.closeEntireSession) { + connection.onSessionClosed(response); + connection.leave(); + return; + } + + connection.remove(response.userid); + + onLeaveHandler({ + userid: response.userid, + extra: response.extra || {}, + entireSessionClosed: !!response.closeEntireSession + }, connection); + } + + // keeping session active even if initiator leaves + if (response.playRoleOfBroadcaster) { + if (response.extra) { + // clone extra-data from initial moderator + connection.extra = merge(connection.extra, response.extra); + } + if (response.participants) { + participants = response.participants; + + // make sure that if 2nd initiator leaves; control is shifted to 3rd person. + if (participants[connection.userid]) { + delete participants[connection.userid]; + } + + if (sockets[0] && sockets[0].userid == response.userid) { + delete sockets[0]; + sockets = swap(sockets); + } + + if (socketObjects[response.userid]) { + delete socketObjects[response.userid]; + } + } + + setTimeout(connection.playRoleOfInitiator, 2000); + } + + if (response.changeBandwidth) { + if (!connection.peers[response.userid]) throw 'No such peer exists.'; + + // synchronize bandwidth + connection.peers[response.userid].peer.bandwidth = response.bandwidth; + + // renegotiate to apply bandwidth + connection.peers[response.userid].renegotiate(); + } + + if (response.customMessage) { + if (!connection.peers[response.userid]) throw 'No such peer exists.'; + if (response.message.ejected) { + if (connection.sessionDescriptions[connection.sessionid].userid != response.userid) { + throw 'only initiator can eject a user.'; + } + // initiator ejected this user + connection.leave(); + + connection.onSessionClosed({ + userid: response.userid, + extra: response.extra || _config.extra, + isEjected: true + }); + } else connection.peers[response.userid].onCustomMessage(response.message); + } + + if (response.drop) { + if (!connection.peers[response.userid]) throw 'No such peer exists.'; + connection.peers[response.userid].drop(true); + connection.peers[response.userid].renegotiate(); + + connection.ondrop(response.userid); + } + + if (response.hold || response.unhold) { + if (!connection.peers[response.userid]) throw 'No such peer exists.'; + + if (response.takeAction) { + connection.peers[response.userid][!!response.hold ? 'hold' : 'unhold'](response.holdMLine); + return; + } + + connection.peers[response.userid].peer.hold = !!response.hold; + connection.peers[response.userid].peer.holdMLine = response.holdMLine; + + socket.send({ + isRenegotiate: true + }); + + connection.peers[response.userid].fireHoldUnHoldEvents({ + kind: response.holdMLine, + isHold: !!response.hold, + userid: response.userid + }); + } + + if (response.isRenegotiate) { + connection.peers[response.userid].renegotiate(null, connection.peers[response.userid].peer.session); + } + + // fake data channels! + if (response.fakeData) { + peerConfig.onmessage(response.fakeData); + } + + // sometimes we don't need to renegotiate e.g. when peers are disconnected + // or if it is firefox + if (response.recreatePeer) { + peer = new PeerConnection(); + } + + // remote video failed either out of ICE gathering process or ICE connectivity check-up + // or IceAgent was unable to locate valid candidates/ports. + if (response.failedToReceiveRemoteVideo) { + log('Remote peer hasn\'t received stream: ' + response.streamid + '. Renegotiating...'); + if (connection.peers[response.userid]) { + connection.peers[response.userid].renegotiate(); + } + } + + if (response.redial) { + if (connection.peers[response.userid]) { + if (connection.peers[response.userid].peer.connection.iceConnectionState != 'disconnected') { + _config.redialing = false; + } + + if (connection.peers[response.userid].peer.connection.iceConnectionState == 'disconnected' && !_config.redialing) { + _config.redialing = true; + + warn('Peer connection is closed.', toStr(connection.peers[response.userid].peer.connection), 'ReDialing..'); + connection.peers[response.userid].redial(); + } + } + } + } + + connection.playRoleOfInitiator = function() { + connection.dontCaptureUserMedia = true; + connection.open(); + sockets = swap(sockets); + connection.dontCaptureUserMedia = false; + }; + + connection.askToShareParticipants = function() { + defaultSocket && defaultSocket.send({ + askToShareParticipants: true + }); + }; + + connection.shareParticipants = function(args) { + var message = { + joinUsers: participants, + userid: connection.userid, + extra: connection.extra + }; + + if (args) { + if (args.dontShareWith) message.dontShareWith = args.dontShareWith; + if (args.shareWith) message.shareWith = args.shareWith; + } + + defaultSocket.send(message); + }; + + function sdpInvoker(sdp, labels) { + if (sdp.type == 'answer') { + peer.setRemoteDescription(sdp); + updateSocket(); + return; + } + if (!_config.renegotiate && sdp.type == 'offer') { + peerConfig.offerDescription = sdp; + + peerConfig.session = connection.session; + if (!peer) peer = new PeerConnection(); + peer.create('answer', peerConfig); + + updateSocket(); + return; + } + + var session = _config.renegotiate; + // detach streams + detachMediaStream(labels, peer.connection); + + if (session.oneway || isData(session)) { + createAnswer(); + delete _config.renegotiate; + } else { + if (_config.capturing) + return; + + _config.capturing = true; + + connection.captureUserMedia(function(stream) { + _config.capturing = false; + + peer.addStream(stream); + + connection.renegotiatedSessions[JSON.stringify(_config.renegotiate)] = { + session: _config.renegotiate, + stream: stream + }; + + delete _config.renegotiate; + + createAnswer(); + }, _config.renegotiate); + } + + function createAnswer() { + peer.recreateAnswer(sdp, session, function(_sdp, streaminfo) { + sendsdp({ + sdp: _sdp, + socket: socket, + streaminfo: streaminfo + }); + connection.detachStreams = []; + }); + } + } + } + + function detachMediaStream(labels, peer) { + if (!labels) return; + for (var i = 0; i < labels.length; i++) { + var label = labels[i]; + if (connection.streams[label]) { + peer.removeStream(connection.streams[label].stream); + } + } + } + + function sendsdp(e) { + e.socket.send({ + sdp: JSON.stringify({ + sdp: e.sdp.sdp, + type: e.sdp.type + }), + renegotiate: !!e.renegotiate ? e.renegotiate : false, + streaminfo: e.streaminfo || '', + labels: e.labels || [], + preferSCTP: !!connection.preferSCTP, + fakeDataChannels: !!connection.fakeDataChannels, + isInitiator: !!connection.isInitiator, + userinfo: { + browser: isFirefox ? 'firefox' : 'chrome' + } + }); + } + + // sharing new user with existing participants + + function onNewParticipant(response) { + var channel = response.newParticipant; + + if (!channel || !!participants[channel] || channel == connection.userid) + return; + + var new_channel = connection.token(); + newPrivateSocket({ + channel: new_channel, + extra: response.userData ? response.userData.extra : response.extra, + userid: response.userData ? response.userData.userid : response.userid + }); + + defaultSocket.send({ + participant: true, + targetUser: channel, + channel: new_channel + }); + } + + // if a user leaves + + function clearSession() { + connection.numberOfConnectedUsers--; + + var alertMessage = { + left: true, + extra: connection.extra || {}, + userid: connection.userid, + sessionid: connection.sessionid + }; + + if (connection.isInitiator) { + // if initiator wants to close entire session + if (connection.autoCloseEntireSession) { + alertMessage.closeEntireSession = true; + } else if (sockets[0]) { + // shift initiation control to another user + sockets[0].send({ + playRoleOfBroadcaster: true, + userid: connection.userid, + extra: connection.extra, + participants: participants + }); + } + } + + sockets.forEach(function(socket, i) { + socket.send(alertMessage); + + if (socketObjects[socket.channel]) { + delete socketObjects[socket.channel]; + } + + delete sockets[i]; + }); + + sockets = swap(sockets); + + connection.refresh(); + + webAudioMediaStreamSources.forEach(function(mediaStreamSource) { + // if source is connected; then chrome will crash on unload. + mediaStreamSource.disconnect(); + }); + + webAudioMediaStreamSources = []; + } + + // www.RTCMultiConnection.org/docs/remove/ + connection.remove = function(userid) { + if (rtcMultiSession.requestsFrom && rtcMultiSession.requestsFrom[userid]) delete rtcMultiSession.requestsFrom[userid]; + + if (connection.peers[userid]) { + if (connection.peers[userid].peer && connection.peers[userid].peer.connection) { + if (connection.peers[userid].peer.connection.signalingState != 'closed') { + connection.peers[userid].peer.connection.close(); + } + connection.peers[userid].peer.connection = null; + } + delete connection.peers[userid]; + } + if (participants[userid]) { + delete participants[userid]; + } + + for (var stream in connection.streams) { + stream = connection.streams[stream]; + if (stream.userid == userid) { + onStreamEndedHandler(stream, connection); + delete connection.streams[stream]; + } + } + + if (socketObjects[userid]) { + delete socketObjects[userid]; + } + }; + + // www.RTCMultiConnection.org/docs/refresh/ + connection.refresh = function() { + // if firebase; remove data from firebase servers + if (connection.isInitiator && !!connection.socket && !!connection.socket.remove) { + connection.socket.remove(); + } + + participants = {}; + + // to stop/remove self streams + for (var i = 0; i < connection.attachStreams.length; i++) { + connection.stopMediaStream(connection.attachStreams[i]); + } + + // to allow capturing of identical streams + currentUserMediaRequest = { + streams: [], + mutex: false, + queueRequests: [] + }; + + rtcMultiSession.isOwnerLeaving = true; + + connection.isInitiator = false; + connection.isAcceptNewSession = true; + connection.attachMediaStreams = []; + connection.sessionDescription = null; + connection.sessionDescriptions = {}; + connection.localStreamids = []; + connection.preRecordedMedias = {}; + connection.snapshots = {}; + + connection.numberOfConnectedUsers = 0; + connection.numberOfSessions = 0; + + connection.attachStreams = []; + connection.detachStreams = []; + connection.fileQueue = {}; + connection.channels = {}; + connection.renegotiatedSessions = {}; + + for (var peer in connection.peers) { + if (peer != connection.userid) { + delete connection.peers[peer]; + } + } + + // to make sure remote streams are also removed! + for (var stream in connection.streams) { + if (connection._skip.indexOf(stream) == -1) { + onStreamEndedHandler(connection.streams[stream], connection); + delete connection.streams[stream]; + } + } + + socketObjects = {}; + sockets = []; + participants = {}; + }; + + // www.RTCMultiConnection.org/docs/reject/ + connection.reject = function(userid) { + if (!isString(userid)) userid = userid.userid; + defaultSocket.send({ + rejectedRequestOf: userid + }); + + // remove relevant data to allow him join again + connection.remove(userid); + }; + + rtcMultiSession.leaveHandler = function(e) { + if (!connection.leaveOnPageUnload) return; + + if (isNull(e.keyCode)) { + return clearSession(); + } + + if (e.keyCode == 116) { + clearSession(); + } + }; + + listenEventHandler('beforeunload', rtcMultiSession.leaveHandler); + listenEventHandler('keyup', rtcMultiSession.leaveHandler); + + rtcMultiSession.onLineOffLineHandler = function() { + if (!navigator.onLine) { + rtcMultiSession.isOffLine = true; + } else if (rtcMultiSession.isOffLine) { + rtcMultiSession.isOffLine = !navigator.onLine; + + // defaultSocket = getDefaultSocketRef(); + + // pending tasks should be resumed? + // sockets should be reconnected? + // peers should be re-established? + } + }; + + listenEventHandler('load', rtcMultiSession.onLineOffLineHandler); + listenEventHandler('online', rtcMultiSession.onLineOffLineHandler); + listenEventHandler('offline', rtcMultiSession.onLineOffLineHandler); + + function onSignalingReady() { + if (rtcMultiSession.signalingReady) return; + rtcMultiSession.signalingReady = true; + + setTimeout(callbackForSignalingReady, 1000); + + if (!connection.isInitiator) { + // as soon as signaling gateway is connected; + // user should check existing rooms! + defaultSocket && defaultSocket.send({ + searchingForRooms: true + }); + } + } + + function joinParticipants(joinUsers) { + for (var user in joinUsers) { + if (!participants[joinUsers[user]]) { + onNewParticipant({ + sessionid: connection.sessionid, + newParticipant: joinUsers[user], + userid: connection.userid, + extra: connection.extra + }); + } + } + } + + function getDefaultSocketRef() { + return connection.openSignalingChannel({ + onmessage: function(response) { + // RMS == RTCMultiSession + if (isRMSDeleted) return; + + // if message is sent by same user + if (response.userid == connection.userid) return; + + if (response.sessionid && response.userid) { + if (!connection.sessionDescriptions[response.sessionid]) { + connection.numberOfSessions++; + connection.sessionDescriptions[response.sessionid] = response; + + // fire "onNewSession" only if: + // 1) "isAcceptNewSession" boolean is true + // 2) "sessionDescriptions" object isn't having same session i.e. to prevent duplicate invocations + if (connection.isAcceptNewSession) { + + if (!connection.dontOverrideSession) { + connection.session = response.session; + } + + onNewSession(response); + } + } + } + + if (response.newParticipant && !connection.isAcceptNewSession && rtcMultiSession.broadcasterid === response.userid) { + if (response.newParticipant != connection.userid) { + onNewParticipant(response); + } + } + + if (getLength(participants) < connection.maxParticipantsAllowed && response.targetUser == connection.userid && response.participant) { + if (connection.peers[response.userid] && !connection.peers[response.userid].peer) { + delete participants[response.userid]; + delete connection.peers[response.userid]; + connection.isAcceptNewSession = true; + return acceptRequest(response); + } + + if (!participants[response.userid]) { + acceptRequest(response); + } + } + + if (response.acceptedRequestOf == connection.userid) { + connection.onstatechange({ + userid: response.userid, + extra: response.extra, + name: 'request-accepted', + reason: response.userid + ' accepted your participation request.' + }); + } + + if (response.rejectedRequestOf == connection.userid) { + connection.onstatechange({ + userid: response.userid, + extra: response.extra, + name: 'request-rejected', + reason: response.userid + ' rejected your participation request.' + }); + } + + if (response.customMessage) { + if (response.message.drop) { + connection.ondrop(response.userid); + + connection.attachStreams = []; + // "drop" should detach all local streams + for (var stream in connection.streams) { + if (connection._skip.indexOf(stream) == -1) { + stream = connection.streams[stream]; + if (stream.type == 'local') { + connection.detachStreams.push(stream.streamid); + onStreamEndedHandler(stream, connection); + } else onStreamEndedHandler(stream, connection); + } + } + + if (response.message.renegotiate) { + // renegotiate; so "peer.removeStream" happens. + connection.renegotiate(); + } + } else if (connection.onCustomMessage) { + connection.onCustomMessage(response.message); + } + } + + if (connection.isInitiator && response.searchingForRooms) { + defaultSocket && defaultSocket.send({ + sessionDescription: connection.sessionDescription, + responseFor: response.userid + }); + } + + if (response.sessionDescription && response.responseFor == connection.userid) { + var sessionDescription = response.sessionDescription; + if (!connection.sessionDescriptions[sessionDescription.sessionid]) { + connection.numberOfSessions++; + connection.sessionDescriptions[sessionDescription.sessionid] = sessionDescription; + } + } + + if (connection.isInitiator && response.askToShareParticipants && defaultSocket) { + connection.shareParticipants({ + shareWith: response.userid + }); + } + + // participants are shared with single user + if (response.shareWith == connection.userid && response.dontShareWith != connection.userid && response.joinUsers) { + joinParticipants(response.joinUsers); + } + + // participants are shared with all users + if (!response.shareWith && response.joinUsers) { + if (response.dontShareWith) { + if (connection.userid != response.dontShareWith) { + joinParticipants(response.joinUsers); + } + } else joinParticipants(response.joinUsers); + } + + if (response.messageFor == connection.userid && response.presenceState) { + if (response.presenceState == 'checking') { + defaultSocket.send({ + messageFor: response.userid, + presenceState: 'available', + _config: response._config + }); + log('participant asked for availability'); + } + + if (response.presenceState == 'available') { + rtcMultiSession.presenceState = 'available'; + + connection.onstatechange({ + userid: 'browser', + extra: {}, + name: 'room-available', + reason: 'Initiator is available and room is active.' + }); + + joinSession(response._config); + } + } + + if (response.donotJoin && response.messageFor == connection.userid) { + log(response.userid, 'is not joining your room.'); + } + + // if initiator disconnects sockets, participants should also disconnect + if (response.isDisconnectSockets) { + log('Disconnecting your sockets because initiator also disconnected his sockets.'); + connection.disconnect(); + } + }, + callback: function(socket) { + socket && this.onopen(socket); + }, + onopen: function(socket) { + if (socket) defaultSocket = socket; + if (onSignalingReady) onSignalingReady(); + + rtcMultiSession.defaultSocket = defaultSocket; + + if (!defaultSocket.__push) { + defaultSocket.__push = defaultSocket.send; + defaultSocket.send = function(message) { + message.userid = message.userid || connection.userid; + message.extra = message.extra || connection.extra || {}; + + defaultSocket.__push(message); + }; + } + } + }); + } + + // default-socket is a common socket shared among all users in a specific channel; + // to share participation requests; room descriptions; and other stuff. + var defaultSocket = getDefaultSocketRef(); + + rtcMultiSession.defaultSocket = defaultSocket; + + if (defaultSocket && onSignalingReady) setTimeout(onSignalingReady, 2000); + + if (connection.session.screen) { + loadScreenFrame(); + } + // CUSTOM CODE // + + /* Commenting this + connection.getExternalIceServers && loadIceFrame(function(iceServers) + { + connection.iceServers = connection.iceServers.concat(iceServers); + }); + */ + + // CUSTOM CODE // + + if (connection.log == false) connection.skipLogs(); + if (connection.onlog) { + log = warn = error = function() { + var log = {}; + var index = 0; + Array.prototype.slice.call(arguments).forEach(function(argument) { + log[index++] = toStr(argument); + }); + toStr = function(str) { + return str; + }; + connection.onlog(log); + }; + } + + function setDirections() { + var userMaxParticipantsAllowed = 0; + + // if user has set a custom max participant setting, remember it + if (connection.maxParticipantsAllowed != 256) { + userMaxParticipantsAllowed = connection.maxParticipantsAllowed; + } + + if (connection.direction == 'one-way') connection.session.oneway = true; + if (connection.direction == 'one-to-one') connection.maxParticipantsAllowed = 1; + if (connection.direction == 'one-to-many') connection.session.broadcast = true; + if (connection.direction == 'many-to-many') { + if (!connection.maxParticipantsAllowed || connection.maxParticipantsAllowed == 1) { + connection.maxParticipantsAllowed = 256; + } + } + + // if user has set a custom max participant setting, set it back + if (userMaxParticipantsAllowed && connection.maxParticipantsAllowed != 1) { + connection.maxParticipantsAllowed = userMaxParticipantsAllowed; + } + } + + // open new session + this.initSession = function(args) { + rtcMultiSession.isOwnerLeaving = false; + + setDirections(); + participants = {}; + + rtcMultiSession.isOwnerLeaving = false; + + if (!isNull(args.transmitRoomOnce)) { + connection.transmitRoomOnce = args.transmitRoomOnce; + } + + function transmit() { + if (defaultSocket && getLength(participants) < connection.maxParticipantsAllowed && !rtcMultiSession.isOwnerLeaving) { + defaultSocket.send(connection.sessionDescription); + } + + if (!connection.transmitRoomOnce && !rtcMultiSession.isOwnerLeaving) + setTimeout(transmit, connection.interval || 3000); + } + + // todo: test and fix next line. + if (!args.dontTransmit /* || connection.transmitRoomOnce */ ) transmit(); + }; + + function joinSession(_config, skipOnStateChange) { + if (rtcMultiSession.donotJoin && rtcMultiSession.donotJoin == _config.sessionid) { + return; + } + + // dontOverrideSession allows you force RTCMultiConnection + // to not override default session for participants; + // by default, session is always overridden and set to the session coming from initiator! + if (!connection.dontOverrideSession) { + connection.session = _config.session || {}; + } + + // make sure that inappropriate users shouldn't receive onNewSession event + rtcMultiSession.broadcasterid = _config.userid; + + if (_config.sessionid) { + // used later to prevent external rooms messages to be used by this user! + connection.sessionid = _config.sessionid; + } + + connection.isAcceptNewSession = false; + + var channel = getRandomString(); + newPrivateSocket({ + channel: channel, + extra: _config.extra || {}, + userid: _config.userid + }); + + var offers = {}; + if (connection.attachStreams.length) { + var stream = connection.attachStreams[connection.attachStreams.length - 1]; + if (!!stream.getAudioTracks && stream.getAudioTracks().length) { + offers.audio = true; + } + if (stream.getVideoTracks().length) { + offers.video = true; + } + } + + if (!isEmpty(offers)) { + log(toStr(offers)); + } else log('Seems data-only connection.'); + + connection.onstatechange({ + userid: _config.userid, + extra: {}, + name: 'connecting-with-initiator', + reason: 'Checking presence of the initiator; and the room.' + }); + + defaultSocket.send({ + participant: true, + channel: channel, + targetUser: _config.userid, + session: connection.session, + offers: { + audio: !!offers.audio, + video: !!offers.video + } + }); + + connection.skipOnNewSession = false; + invokeMediaCaptured(connection); + } + + // join existing session + this.joinSession = function(_config) { + if (!defaultSocket) + return setTimeout(function() { + warn('Default-Socket is not yet initialized.'); + rtcMultiSession.joinSession(_config); + }, 1000); + + _config = _config || {}; + participants = {}; + + rtcMultiSession.presenceState = 'checking'; + + connection.onstatechange({ + userid: _config.userid, + extra: _config.extra || {}, + name: 'detecting-room-presence', + reason: 'Checking presence of the room.' + }); + + function contactInitiator() { + defaultSocket.send({ + messageFor: _config.userid, + presenceState: rtcMultiSession.presenceState, + _config: { + userid: _config.userid, + extra: _config.extra || {}, + sessionid: _config.sessionid, + session: _config.session || false + } + }); + } + contactInitiator(); + + function checker() { + if (rtcMultiSession.presenceState == 'checking') { + warn('Unable to reach initiator. Trying again...'); + contactInitiator(); + setTimeout(function() { + if (rtcMultiSession.presenceState == 'checking') { + connection.onstatechange({ + userid: _config.userid, + extra: _config.extra || {}, + name: 'room-not-available', + reason: 'Initiator seems absent. Waiting for someone to open the room.' + }); + + connection.isAcceptNewSession = true; + setTimeout(checker, 2000); + } + }, 2000); + } + } + + setTimeout(checker, 3000); + }; + + connection.donotJoin = function(sessionid) { + rtcMultiSession.donotJoin = sessionid; + + var session = connection.sessionDescriptions[sessionid]; + if (!session) return; + + defaultSocket.send({ + donotJoin: true, + messageFor: session.userid, + sessionid: sessionid + }); + + participants = {}; + connection.isAcceptNewSession = true; + connection.sessionid = null; + }; + + // send file/data or text message + this.send = function(message, _channel) { + if (!(message instanceof ArrayBuffer || message instanceof DataView)) { + message = str2ab({ + extra: connection.extra, + userid: connection.userid, + data: message + }); + } + + if (_channel) { + if (_channel.readyState == 'open') { + _channel.send(message); + } + return; + } + + for (var dataChannel in connection.channels) { + var channel = connection.channels[dataChannel].channel; + if (channel.readyState == 'open') { + channel.send(message); + } + } + }; + + // leave session + this.leave = function() { + clearSession(); + }; + + // renegotiate new stream + this.addStream = function(e) { + var session = e.renegotiate; + + if (!connection.renegotiatedSessions[JSON.stringify(e.renegotiate)]) { + connection.renegotiatedSessions[JSON.stringify(e.renegotiate)] = { + session: e.renegotiate, + stream: e.stream + }; + } + + if (e.socket) { + if (e.socket.userid != connection.userid) { + addStream(connection.peers[e.socket.userid]); + } + } else { + for (var peer in connection.peers) { + if (peer != connection.userid) { + addStream(connection.peers[peer]); + } + } + } + + function addStream(_peer) { + var socket = _peer.socket; + + if (!socket) { + warn(_peer, 'doesn\'t has socket.'); + return; + } + + updateSocketForLocalStreams(socket); + + if (!_peer || !_peer.peer) { + throw 'No peer to renegotiate.'; + } + + var peer = _peer.peer; + + if (e.stream) { + if (!peer.attachStreams) { + peer.attachStreams = []; + } + + peer.attachStreams.push(e.stream); + } + + // detaching old streams + detachMediaStream(connection.detachStreams, peer.connection); + + if (e.stream && (session.audio || session.video || session.screen)) { + peer.addStream(e.stream); + } + + peer.recreateOffer(session, function(sdp, streaminfo) { + sendsdp({ + sdp: sdp, + socket: socket, + renegotiate: session, + labels: connection.detachStreams, + streaminfo: streaminfo + }); + connection.detachStreams = []; + }); + } + }; + + // www.RTCMultiConnection.org/docs/request/ + connection.request = function(userid, extra) { + connection.captureUserMedia(function() { + // open private socket that will be used to receive offer-sdp + newPrivateSocket({ + channel: connection.userid, + extra: extra || {}, + userid: userid + }); + + // ask other user to create offer-sdp + defaultSocket.send({ + participant: true, + targetUser: userid + }); + }); + }; + + function acceptRequest(response) { + if (!rtcMultiSession.requestsFrom) rtcMultiSession.requestsFrom = {}; + if (rtcMultiSession.requestsFrom[response.userid]) return; + + var obj = { + userid: response.userid, + extra: response.extra, + channel: response.channel || response.userid, + session: response.session || connection.session + }; + + // check how participant is willing to join + if (response.offers) { + if (response.offers.audio && response.offers.video) { + log('target user has both audio/video streams.'); + } else if (response.offers.audio && !response.offers.video) { + log('target user has only audio stream.'); + } else if (!response.offers.audio && response.offers.video) { + log('target user has only video stream.'); + } else { + log('target user has no stream; it seems one-way streaming or data-only connection.'); + } + + var mandatory = connection.sdpConstraints.mandatory; + if (isNull(mandatory.OfferToReceiveAudio)) { + connection.sdpConstraints.mandatory.OfferToReceiveAudio = !!response.offers.audio; + } + if (isNull(mandatory.OfferToReceiveVideo)) { + connection.sdpConstraints.mandatory.OfferToReceiveVideo = !!response.offers.video; + } + + log('target user\'s SDP has?', toStr(connection.sdpConstraints.mandatory)); + } + + rtcMultiSession.requestsFrom[response.userid] = obj; + + // www.RTCMultiConnection.org/docs/onRequest/ + if (connection.onRequest && connection.isInitiator) { + connection.onRequest(obj); + } else _accept(obj); + } + + function _accept(e) { + if (rtcMultiSession.captureUserMediaOnDemand) { + rtcMultiSession.captureUserMediaOnDemand = false; + connection.captureUserMedia(function() { + _accept(e); + + invokeMediaCaptured(connection); + }); + return; + } + + log('accepting request from', e.userid); + participants[e.userid] = e.userid; + newPrivateSocket({ + isofferer: true, + userid: e.userid, + channel: e.channel, + extra: e.extra || {}, + session: e.session || connection.session + }); + } + + // www.RTCMultiConnection.org/docs/accept/ + connection.accept = function(e) { + // for backward compatibility + if (arguments.length > 1 && isString(arguments[0])) { + e = {}; + if (arguments[0]) e.userid = arguments[0]; + if (arguments[1]) e.extra = arguments[1]; + if (arguments[2]) e.channel = arguments[2]; + } + + connection.captureUserMedia(function() { + _accept(e); + }); + }; + + var isRMSDeleted = false; + this.disconnect = function() { + this.isOwnerLeaving = true; + + if (!connection.keepStreamsOpened) { + for (var streamid in connection.localStreams) { + connection.localStreams[streamid].stop(); + } + connection.localStreams = {}; + + currentUserMediaRequest = { + streams: [], + mutex: false, + queueRequests: [] + }; + } + + if (connection.isInitiator) { + defaultSocket.send({ + isDisconnectSockets: true + }); + } + + connection.refresh(); + + rtcMultiSession.defaultSocket = defaultSocket = null; + isRMSDeleted = true; + + connection.ondisconnected({ + userid: connection.userid, + extra: connection.extra, + peer: connection.peers[connection.userid], + isSocketsDisconnected: true + }); + + // if there is any peer still opened; close it. + connection.close(); + + window.removeEventListener('beforeunload', rtcMultiSession.leaveHandler); + window.removeEventListener('keyup', rtcMultiSession.leaveHandler); + + // it will not work, though :) + delete this; + + log('Disconnected your sockets, peers, streams and everything except RTCMultiConnection object.'); + }; + } + + var webAudioMediaStreamSources = []; + + function convertToAudioStream(mediaStream) { + if (!mediaStream) throw 'MediaStream is mandatory.'; + + if (mediaStream.getVideoTracks && !mediaStream.getVideoTracks().length) { + return mediaStream; + } + + var context = new AudioContext(); + var mediaStreamSource = context.createMediaStreamSource(mediaStream); + + var destination = context.createMediaStreamDestination(); + mediaStreamSource.connect(destination); + + webAudioMediaStreamSources.push(mediaStreamSource); + + return destination.stream; + } + + var isOpera = !!window.opera || navigator.userAgent.indexOf(' OPR/') >= 0; + var isFirefox = typeof window.InstallTrigger !== 'undefined'; + var isSafari = Object.prototype.toString.call(window.HTMLElement).indexOf('Constructor') > 0; + var isChrome = !!window.chrome && !isOpera; + var isIE = !!document.documentMode; + + var isPluginRTC = isSafari || isIE; + + var isMobileDevice = !!navigator.userAgent.match(/Android|iPhone|iPad|iPod|BlackBerry|IEMobile/i); + + // detect node-webkit + var isNodeWebkit = !!(window.process && (typeof window.process == 'object') && window.process.versions && window.process.versions['node-webkit']); + + window.MediaStream = window.MediaStream || window.webkitMediaStream; + window.AudioContext = window.AudioContext || window.webkitAudioContext; + + function getRandomString() { + // suggested by @rvulpescu from #154 + if (window.crypto && crypto.getRandomValues && navigator.userAgent.indexOf('Safari') == -1) { + var a = window.crypto.getRandomValues(new Uint32Array(3)), + token = ''; + for (var i = 0, l = a.length; i < l; i++) { + token += a[i].toString(36); + } + return token; + } else { + return (Math.random() * new Date().getTime()).toString(36).replace(/\./g, ''); + } + } + + var chromeVersion = 50; + var matchArray = navigator.userAgent.match(/Chrom(e|ium)\/([0-9]+)\./); + if (isChrome && matchArray && matchArray[2]) { + chromeVersion = parseInt(matchArray[2], 10); + } + + var firefoxVersion = 50; + matchArray = navigator.userAgent.match(/Firefox\/(.*)/); + if (isFirefox && matchArray && matchArray[1]) { + firefoxVersion = parseInt(matchArray[1], 10); + } + + function isData(session) { + return !session.audio && !session.video && !session.screen && session.data; + } + + function isNull(obj) { + return typeof obj == 'undefined'; + } + + function isString(obj) { + return typeof obj == 'string'; + } + + function isEmpty(session) { + var length = 0; + for (var s in session) { + length++; + } + return length == 0; + } + + // this method converts array-buffer into string + function ab2str(buf) { + var result = ''; + try { + result = String.fromCharCode.apply(null, new Uint16Array(buf)); + } catch (e) {} + return result; + } + + // this method converts string into array-buffer + function str2ab(str) { + if (!isString(str)) str = JSON.stringify(str); + + var buf = new ArrayBuffer(str.length * 2); // 2 bytes for each char + var bufView = new Uint16Array(buf); + for (var i = 0, strLen = str.length; i < strLen; i++) { + bufView[i] = str.charCodeAt(i); + } + return buf; + } + + function swap(arr) { + var swapped = [], + length = arr.length; + for (var i = 0; i < length; i++) + if (arr[i] && arr[i] !== true) + swapped.push(arr[i]); + return swapped; + } + + function forEach(obj, callback) { + for (var item in obj) { + callback(obj[item], item); + } + } + + var console = window.console || { + log: function() {}, + error: function() {}, + warn: function() {} + }; + + function log() { + console.log(arguments); + } + + function error() { + console.error(arguments); + } + + function warn() { + console.warn(arguments); + } + + if (isChrome || isFirefox || isSafari) { + var log = console.log.bind(console); + var error = console.error.bind(console); + var warn = console.warn.bind(console); + } + + function toStr(obj) { + return JSON.stringify(obj, function(key, value) { + if (value && value.sdp) { + log(value.sdp.type, '\t', value.sdp.sdp); + return ''; + } else return value; + }, '\t'); + } + + function getLength(obj) { + var length = 0; + for (var o in obj) + if (o) length++; + return length; + } + + // Get HTMLAudioElement/HTMLVideoElement accordingly + + function createMediaElement(stream, session) { + var mediaElement = document.createElement(stream.isAudio ? 'audio' : 'video'); + mediaElement.id = stream.streamid; + + if (isPluginRTC) { + var body = (document.body || document.documentElement); + body.insertBefore(mediaElement, body.firstChild); + + setTimeout(function() { + Plugin.attachMediaStream(mediaElement, stream) + }, 1000); + + return Plugin.attachMediaStream(mediaElement, stream); + } + + // "mozSrcObject" is always preferred over "src"!! + mediaElement[isFirefox ? 'mozSrcObject' : 'src'] = isFirefox ? stream : (window.URL || window.webkitURL).createObjectURL(stream); + + mediaElement.controls = true; + mediaElement.autoplay = !!session.remote; + mediaElement.muted = session.remote ? false : true; + + // http://goo.gl/WZ5nFl + // Firefox don't yet support onended for any stream (remote/local) + isFirefox && mediaElement.addEventListener('ended', function() { + stream.onended(); + }, false); + + mediaElement.play(); + + return mediaElement; + } + + var onStreamEndedHandlerFiredFor = {}; + + function onStreamEndedHandler(streamedObject, connection) { + if (streamedObject.mediaElement && !streamedObject.mediaElement.parentNode) return; + + if (onStreamEndedHandlerFiredFor[streamedObject.streamid]) return; + onStreamEndedHandlerFiredFor[streamedObject.streamid] = streamedObject; + connection.onstreamended(streamedObject); + } + + var onLeaveHandlerFiredFor = {}; + + function onLeaveHandler(event, connection) { + if (onLeaveHandlerFiredFor[event.userid]) return; + onLeaveHandlerFiredFor[event.userid] = event; + connection.onleave(event); + } + + function takeSnapshot(args) { + var userid = args.userid; + var connection = args.connection; + + function _takeSnapshot(video) { + var canvas = document.createElement('canvas'); + canvas.width = video.videoWidth || video.clientWidth; + canvas.height = video.videoHeight || video.clientHeight; + + var context = canvas.getContext('2d'); + context.drawImage(video, 0, 0, canvas.width, canvas.height); + + connection.snapshots[userid] = canvas.toDataURL('image/png'); + args.callback && args.callback(connection.snapshots[userid]); + } + + if (args.mediaElement) return _takeSnapshot(args.mediaElement); + + for (var stream in connection.streams) { + stream = connection.streams[stream]; + if (stream.userid == userid && stream.stream && stream.stream.getVideoTracks && stream.stream.getVideoTracks().length) { + _takeSnapshot(stream.mediaElement); + continue; + } + } + } + + function invokeMediaCaptured(connection) { + // to let user know that media resource has been captured + // now, he can share "sessionDescription" using sockets + if (connection.onMediaCaptured) { + connection.onMediaCaptured(); + delete connection.onMediaCaptured; + } + } + + function merge(mergein, mergeto) { + if (!mergein) mergein = {}; + if (!mergeto) return mergein; + + for (var item in mergeto) { + mergein[item] = mergeto[item]; + } + return mergein; + } + + function loadScript(src, onload) { + var script = document.createElement('script'); + script.src = src; + script.onload = function() { + log('loaded resource:', src); + if (onload) onload(); + }; + document.documentElement.appendChild(script); + } + + function capturePartOfScreen(args) { + var connection = args.connection; + var element = args.element; + + if (!window.html2canvas) { + return loadScript(connection.resources.html2canvas, function() { + capturePartOfScreen(args); + }); + } + + if (isString(element)) { + element = document.querySelector(element); + if (!element) element = document.getElementById(element); + } + if (!element) throw 'HTML DOM Element is not accessible!'; + + // todo: store DOM element somewhere to minimize DOM querying issues + + // html2canvas.js is used to take screenshots + html2canvas(element, { + onrendered: function(canvas) { + args.callback(canvas.toDataURL()); + } + }); + } + + function initFileBufferReader(connection, callback) { + if (!window.FileBufferReader) { + loadScript(connection.resources.FileBufferReader, function() { + initFileBufferReader(connection, callback); + }); + return; + } + + function _private(chunk) { + chunk.userid = chunk.extra.userid; + return chunk; + } + + var fileBufferReader = new FileBufferReader(); + fileBufferReader.onProgress = function(chunk) { + connection.onFileProgress(_private(chunk), chunk.uuid); + }; + + fileBufferReader.onBegin = function(file) { + connection.onFileStart(_private(file)); + }; + + fileBufferReader.onEnd = function(file) { + connection.onFileEnd(_private(file)); + }; + + callback(fileBufferReader); + } + + var screenFrame, loadedScreenFrame; + + function loadScreenFrame(skip) { + if (DetectRTC.screen.extensionid != ReservedExtensionID) { + return; + } + + if (loadedScreenFrame) return; + if (!skip) return loadScreenFrame(true); + + loadedScreenFrame = true; + + var iframe = document.createElement('iframe'); + iframe.onload = function() { + iframe.isLoaded = true; + log('Screen Capturing frame is loaded.'); + }; + //iframe.src = 'https://www.webrtc-experiment.com/getSourceId/'; + // CUSTOM CODE // + iframe.src = 'app/fusion/scripts/webrtc/getSourceId.html'; + // CUSTOM CODE // + iframe.style.display = 'none'; + (document.body || document.documentElement).appendChild(iframe); + + screenFrame = { + postMessage: function() { + if (!iframe.isLoaded) { + setTimeout(screenFrame.postMessage, 100); + return; + } + iframe.contentWindow.postMessage({ + captureSourceId: true + }, '*'); + } + }; + } + + var iceFrame, loadedIceFrame; + + function loadIceFrame(callback, skip) { + if (loadedIceFrame) return; + if (!skip) return loadIceFrame(callback, true); + + loadedIceFrame = true; + + var iframe = document.createElement('iframe'); + iframe.onload = function() { + iframe.isLoaded = true; + + listenEventHandler('message', iFrameLoaderCallback); + + function iFrameLoaderCallback(event) { + if (!event.data || !event.data.iceServers) return; + callback(event.data.iceServers); + + // this event listener is no more needed + window.removeEventListener('message', iFrameLoaderCallback); + } + + iframe.contentWindow.postMessage('get-ice-servers', '*'); + }; + iframe.src = 'https://cdn.webrtc-experiment.com/getIceServers/'; + iframe.style.display = 'none'; + (document.body || document.documentElement).appendChild(iframe); + } + + function muteOrUnmute(e) { + var stream = e.stream, + root = e.root, + session = e.session || {}, + enabled = e.enabled; + + if (!session.audio && !session.video) { + if (!isString(session)) { + session = merge(session, { + audio: true, + video: true + }); + } else { + session = { + audio: true, + video: true + }; + } + } + + // implementation from #68 + if (session.type) { + if (session.type == 'remote' && root.type != 'remote') return; + if (session.type == 'local' && root.type != 'local') return; + } + + log(enabled ? 'Muting' : 'UnMuting', 'session', toStr(session)); + + // enable/disable audio/video tracks + + if (root.type == 'local' && session.audio && !!stream.getAudioTracks) { + var audioTracks = stream.getAudioTracks()[0]; + if (audioTracks) + audioTracks.enabled = !enabled; + } + + if (root.type == 'local' && (session.video || session.screen) && !!stream.getVideoTracks) { + var videoTracks = stream.getVideoTracks()[0]; + if (videoTracks) + videoTracks.enabled = !enabled; + } + + root.sockets.forEach(function(socket) { + if (root.type == 'local') { + socket.send({ + streamid: root.streamid, + mute: !!enabled, + unmute: !enabled, + session: session + }); + } + + if (root.type == 'remote') { + socket.send({ + promptMuteUnmute: true, + streamid: root.streamid, + mute: !!enabled, + unmute: !enabled, + session: session + }); + } + }); + + if (root.type == 'remote') return; + + // According to issue #135, onmute/onumute must be fired for self + // "fakeObject" is used because we need to keep session for renegotiated streams; + // and MUST pass exact session over onStreamEndedHandler/onmute/onhold/etc. events. + var fakeObject = merge({}, root); + fakeObject.session = session; + + fakeObject.isAudio = !!fakeObject.session.audio && !fakeObject.session.video; + fakeObject.isVideo = !!fakeObject.session.video; + fakeObject.isScreen = !!fakeObject.session.screen; + + if (!!enabled) { + // if muted stream is negotiated + stream.preMuted = { + audio: stream.getAudioTracks().length && !stream.getAudioTracks()[0].enabled, + video: stream.getVideoTracks().length && !stream.getVideoTracks()[0].enabled + }; + root.rtcMultiConnection.onmute(fakeObject); + } + + if (!enabled) { + stream.preMuted = {}; + root.rtcMultiConnection.onunmute(fakeObject); + } + } + + var Firefox_Screen_Capturing_Warning = 'Make sure that you are using Firefox Nightly and you enabled: media.getusermedia.screensharing.enabled flag from about:config page. You also need to add your domain in "media.getusermedia.screensharing.allowed_domains" flag. If you are using WinXP then also enable "media.getusermedia.screensharing.allow_on_old_platforms" flag. NEVER forget to use "only" HTTPs for screen capturing!'; + var SCREEN_COMMON_FAILURE = 'HTTPs i.e. SSL-based URI is mandatory to use screen capturing.'; + // CUSTOM CODE // + var ReservedExtensionID = 'icgmlogfeajbfdffajhoebcfbibfhaen'; + //var ReservedExtensionID = 'ajhifddimkapgcifgcodmmfdlknahffk'; + + // if application-developer deployed his own extension on Google App Store + var useCustomChromeExtensionForScreenCapturing = document.domain.indexOf('webrtc-experiment.com') != -1; + + function initHark(args) { + if (!window.hark) { + loadScript(args.connection.resources.hark, function() { + initHark(args); + }); + return; + } + + var connection = args.connection; + var streamedObject = args.streamedObject; + var stream = args.stream; + + var options = {}; + var speechEvents = hark(stream, options); + + speechEvents.on('speaking', function() { + if (connection.onspeaking) { + connection.onspeaking(streamedObject); + } + }); + + speechEvents.on('stopped_speaking', function() { + if (connection.onsilence) { + connection.onsilence(streamedObject); + } + }); + + speechEvents.on('volume_change', function(volume, threshold) { + if (connection.onvolumechange) { + connection.onvolumechange(merge({ + volume: volume, + threshold: threshold + }, streamedObject)); + } + }); + } + + attachEventListener = function(video, type, listener, useCapture) { + video.addEventListener(type, listener, useCapture); + }; + + var Plugin = window.PluginRTC || {}; + window.onPluginRTCInitialized = function(pluginRTCObject) { + Plugin = pluginRTCObject; + MediaStreamTrack = Plugin.MediaStreamTrack; + RTCPeerConnection = Plugin.RTCPeerConnection; + RTCIceCandidate = Plugin.RTCIceCandidate; + RTCSessionDescription = Plugin.RTCSessionDescription; + + log(isPluginRTC ? 'Java-Applet' : 'ActiveX', 'plugin has been loaded.'); + }; + if (!isEmpty(Plugin)) window.onPluginRTCInitialized(Plugin); + + // if IE or Safari + if (isPluginRTC) { + loadScript('https://cdn.webrtc-experiment.com/Plugin.EveryWhere.js'); + // loadScript('https://cdn.webrtc-experiment.com/Plugin.Temasys.js'); + } + + var MediaStream = window.MediaStream; + + if (typeof MediaStream === 'undefined' && typeof webkitMediaStream !== 'undefined') { + MediaStream = webkitMediaStream; + } + + /*global MediaStream:true */ + if (typeof MediaStream !== 'undefined' && !('stop' in MediaStream.prototype)) { + MediaStream.prototype.stop = function() { + this.getAudioTracks().forEach(function(track) { + track.stop(); + }); + + this.getVideoTracks().forEach(function(track) { + track.stop(); + }); + }; + } + + var defaultConstraints = { + mandatory: {}, + optional: [] + }; + + /* by @FreCap pull request #41 */ + var currentUserMediaRequest = { + streams: [], + mutex: false, + queueRequests: [] + }; + + function getUserMedia(options) { + if (isPluginRTC) { + if (!Plugin.getUserMedia) { + setTimeout(function() { + getUserMedia(options); + }, 1000); + return; + } + + return Plugin.getUserMedia(options.constraints || { + audio: true, + video: true + }, options.onsuccess, options.onerror); + } + + if (currentUserMediaRequest.mutex === true) { + currentUserMediaRequest.queueRequests.push(options); + return; + } + currentUserMediaRequest.mutex = true; + + var connection = options.connection; + + // tools.ietf.org/html/draft-alvestrand-constraints-resolution-00 + var mediaConstraints = options.mediaConstraints || {}; + var videoConstraints = typeof mediaConstraints.video == 'boolean' ? mediaConstraints.video : mediaConstraints.video || mediaConstraints; + var audioConstraints = typeof mediaConstraints.audio == 'boolean' ? mediaConstraints.audio : mediaConstraints.audio || defaultConstraints; + + var n = navigator; + var hints = options.constraints || { + audio: defaultConstraints, + video: defaultConstraints + }; + + if (hints.video && hints.video.mozMediaSource) { + // "mozMediaSource" is redundant + // need to check "mediaSource" instead. + videoConstraints = {}; + } + + if (hints.video == true) hints.video = defaultConstraints; + if (hints.audio == true) hints.audio = defaultConstraints; + + // connection.mediaConstraints.audio = false; + if (typeof audioConstraints == 'boolean' && hints.audio) { + hints.audio = audioConstraints; + } + + // connection.mediaConstraints.video = false; + if (typeof videoConstraints == 'boolean' && hints.video) { + hints.video = videoConstraints; + } + + // connection.mediaConstraints.audio.mandatory = {prop:true}; + var audioMandatoryConstraints = audioConstraints.mandatory; + if (!isEmpty(audioMandatoryConstraints)) { + hints.audio.mandatory = merge(hints.audio.mandatory, audioMandatoryConstraints); + } + + // connection.media.min(320,180); + // connection.media.max(1920,1080); + var videoMandatoryConstraints = videoConstraints.mandatory; + if (videoMandatoryConstraints) { + var mandatory = {}; + + if (videoMandatoryConstraints.minWidth) { + mandatory.minWidth = videoMandatoryConstraints.minWidth; + } + + if (videoMandatoryConstraints.minHeight) { + mandatory.minHeight = videoMandatoryConstraints.minHeight; + } + + if (videoMandatoryConstraints.maxWidth) { + mandatory.maxWidth = videoMandatoryConstraints.maxWidth; + } + + if (videoMandatoryConstraints.maxHeight) { + mandatory.maxHeight = videoMandatoryConstraints.maxHeight; + } + + if (videoMandatoryConstraints.minAspectRatio) { + mandatory.minAspectRatio = videoMandatoryConstraints.minAspectRatio; + } + + if (videoMandatoryConstraints.maxFrameRate) { + mandatory.maxFrameRate = videoMandatoryConstraints.maxFrameRate; + } + + if (videoMandatoryConstraints.minFrameRate) { + mandatory.minFrameRate = videoMandatoryConstraints.minFrameRate; + } + + if (mandatory.minWidth && mandatory.minHeight) { + // http://goo.gl/IZVYsj + var allowed = ['1920:1080', '1280:720', '960:720', '640:360', '640:480', '320:240', '320:180']; + + if (allowed.indexOf(mandatory.minWidth + ':' + mandatory.minHeight) == -1 || + allowed.indexOf(mandatory.maxWidth + ':' + mandatory.maxHeight) == -1) { + error('The min/max width/height constraints you passed "seems" NOT supported.', toStr(mandatory)); + } + + if (mandatory.minWidth > mandatory.maxWidth || mandatory.minHeight > mandatory.maxHeight) { + error('Minimum value must not exceed maximum value.', toStr(mandatory)); + } + + if (mandatory.minWidth >= 1280 && mandatory.minHeight >= 720) { + warn('Enjoy HD video! min/' + mandatory.minWidth + ':' + mandatory.minHeight + ', max/' + mandatory.maxWidth + ':' + mandatory.maxHeight); + } + } + + hints.video.mandatory = merge(hints.video.mandatory, mandatory); + } + + if (videoMandatoryConstraints) { + hints.video.mandatory = merge(hints.video.mandatory, videoMandatoryConstraints); + } + + // videoConstraints.optional = [{prop:true}]; + if (videoConstraints.optional && videoConstraints.optional instanceof Array && videoConstraints.optional.length) { + hints.video.optional = hints.video.optional ? hints.video.optional.concat(videoConstraints.optional) : videoConstraints.optional; + } + + // audioConstraints.optional = [{prop:true}]; + if (audioConstraints.optional && audioConstraints.optional instanceof Array && audioConstraints.optional.length) { + hints.audio.optional = hints.audio.optional ? hints.audio.optional.concat(audioConstraints.optional) : audioConstraints.optional; + } + + if (hints.video.mandatory && !isEmpty(hints.video.mandatory) && connection._mediaSources.video) { + hints.video.optional.forEach(function(video, index) { + if (video.sourceId == connection._mediaSources.video) { + delete hints.video.optional[index]; + } + }); + + hints.video.optional = swap(hints.video.optional); + + hints.video.optional.push({ + sourceId: connection._mediaSources.video + }); + } + + if (hints.audio.mandatory && !isEmpty(hints.audio.mandatory) && connection._mediaSources.audio) { + hints.audio.optional.forEach(function(audio, index) { + if (audio.sourceId == connection._mediaSources.audio) { + delete hints.audio.optional[index]; + } + }); + + hints.audio.optional = swap(hints.audio.optional); + + hints.audio.optional.push({ + sourceId: connection._mediaSources.audio + }); + } + + if (hints.video && !hints.video.mozMediaSource && hints.video.optional && hints.video.mandatory) { + if (!hints.video.optional.length && isEmpty(hints.video.mandatory)) { + hints.video = true; + } + } + + if (isMobileDevice) { + // Android fails for some constraints + // so need to force {audio:true,video:true} + hints = { + audio: !!hints.audio, + video: !!hints.video + }; + } + + // connection.mediaConstraints always overrides constraints + // passed from "captureUserMedia" function. + // todo: need to verify all possible situations + log('invoked getUserMedia with constraints:', toStr(hints)); + + // easy way to match + var idInstance = JSON.stringify(hints); + + function streaming(stream, returnBack, streamid) { + if (!streamid) streamid = getRandomString(); + + // localStreams object will store stream + // until it is removed using native-stop method. + connection.localStreams[streamid] = stream; + + var video = options.video; + if (video) { + video[isFirefox ? 'mozSrcObject' : 'src'] = isFirefox ? stream : (window.URL || window.webkitURL).createObjectURL(stream); + video.play(); + } + + options.onsuccess(stream, returnBack, idInstance, streamid); + currentUserMediaRequest.streams[idInstance] = { + stream: stream, + streamid: streamid + }; + currentUserMediaRequest.mutex = false; + if (currentUserMediaRequest.queueRequests.length) + getUserMedia(currentUserMediaRequest.queueRequests.shift()); + } + + if (currentUserMediaRequest.streams[idInstance]) { + streaming(currentUserMediaRequest.streams[idInstance].stream, true, currentUserMediaRequest.streams[idInstance].streamid); + } else { + n.getMedia = n.webkitGetUserMedia || n.mozGetUserMedia; + + // http://goo.gl/eETIK4 + n.getMedia(hints, streaming, function(error) { + options.onerror(error, hints); + }); + } + } + + var RTCSessionDescription = window.RTCSessionDescription || window.mozRTCSessionDescription; + var RTCIceCandidate = window.RTCIceCandidate || window.mozRTCIceCandidate; + + var RTCPeerConnection; + if (typeof mozRTCPeerConnection !== 'undefined') { + RTCPeerConnection = mozRTCPeerConnection; + } else if (typeof webkitRTCPeerConnection !== 'undefined') { + RTCPeerConnection = webkitRTCPeerConnection; + } else if (typeof window.RTCPeerConnection !== 'undefined') { + RTCPeerConnection = window.RTCPeerConnection; + } else { + console.error('WebRTC 1.0 (RTCPeerConnection) API seems NOT available in this browser.'); + } + + function setSdpConstraints(config) { + var sdpConstraints; + + var sdpConstraints_mandatory = { + OfferToReceiveAudio: !!config.OfferToReceiveAudio, + OfferToReceiveVideo: !!config.OfferToReceiveVideo + }; + + sdpConstraints = { + mandatory: sdpConstraints_mandatory, + optional: [{ + VoiceActivityDetection: false + }] + }; + + if (!!navigator.mozGetUserMedia && firefoxVersion > 34) { + sdpConstraints = { + OfferToReceiveAudio: !!config.OfferToReceiveAudio, + OfferToReceiveVideo: !!config.OfferToReceiveVideo + }; + } + + return sdpConstraints; + } + + function PeerConnection() { + return { + create: function(type, options) { + merge(this, options); + + var self = this; + + this.type = type; + this.init(); + this.attachMediaStreams(); + + if (isFirefox && this.session.data) { + if (this.session.data && type == 'offer') { + this.createDataChannel(); + } + + this.getLocalDescription(type); + + if (this.session.data && type == 'answer') { + this.createDataChannel(); + } + } else self.getLocalDescription(type); + + return this; + }, + getLocalDescription: function(createType) { + log('(getLocalDescription) peer createType is', createType); + + if (this.session.inactive && isNull(this.rtcMultiConnection.waitUntilRemoteStreamStartsFlowing)) { + // inactive session returns blank-stream + this.rtcMultiConnection.waitUntilRemoteStreamStartsFlowing = false; + } + + var self = this; + + if (createType == 'answer') { + this.setRemoteDescription(this.offerDescription, createDescription); + } else createDescription(); + + function createDescription() { + self.connection[createType == 'offer' ? 'createOffer' : 'createAnswer'](function(sessionDescription) { + sessionDescription.sdp = self.serializeSdp(sessionDescription.sdp, createType); + self.connection.setLocalDescription(sessionDescription); + + if (self.trickleIce) { + self.onSessionDescription(sessionDescription, self.streaminfo); + } + + if (sessionDescription.type == 'offer') { + log('offer sdp', sessionDescription.sdp); + } + + self.prevCreateType = createType; + }, self.onSdpError, self.constraints); + } + }, + serializeSdp: function(sdp, createType) { + // it is "connection.processSdp=function(sdp){return sdp;}" + sdp = this.processSdp(sdp); + + if (isFirefox) return sdp; + + if (this.session.inactive && !this.holdMLine) { + this.hold = true; + if ((this.session.screen || this.session.video) && this.session.audio) { + this.holdMLine = 'both'; + } else if (this.session.screen || this.session.video) { + this.holdMLine = 'video'; + } else if (this.session.audio) { + this.holdMLine = 'audio'; + } + } + + sdp = this.setBandwidth(sdp); + if (this.holdMLine == 'both') { + if (this.hold) { + this.prevSDP = sdp; + sdp = sdp.replace(/a=sendonly|a=recvonly|a=sendrecv/g, 'a=inactive'); + } else if (this.prevSDP) { + if (!this.session.inactive) { + // it means that DTSL key exchange already happened for single or multiple media lines. + // this block checks, key-exchange must be happened for all media lines. + sdp = this.prevSDP; + + // todo: test it: makes sense? + if (chromeVersion <= 35) { + return sdp; + } + } + } + } else if (this.holdMLine == 'audio' || this.holdMLine == 'video') { + sdp = sdp.split('m='); + + var audio = ''; + var video = ''; + + if (sdp[1] && sdp[1].indexOf('audio') == 0) { + audio = 'm=' + sdp[1]; + } + if (sdp[2] && sdp[2].indexOf('audio') == 0) { + audio = 'm=' + sdp[2]; + } + + if (sdp[1] && sdp[1].indexOf('video') == 0) { + video = 'm=' + sdp[1]; + } + if (sdp[2] && sdp[2].indexOf('video') == 0) { + video = 'm=' + sdp[2]; + } + + if (this.holdMLine == 'audio') { + if (this.hold) { + this.prevSDP = sdp[0] + audio + video; + sdp = sdp[0] + audio.replace(/a=sendonly|a=recvonly|a=sendrecv/g, 'a=inactive') + video; + } else if (this.prevSDP) { + sdp = this.prevSDP; + } + } + + if (this.holdMLine == 'video') { + if (this.hold) { + this.prevSDP = sdp[0] + audio + video; + sdp = sdp[0] + audio + video.replace(/a=sendonly|a=recvonly|a=sendrecv/g, 'a=inactive'); + } else if (this.prevSDP) { + sdp = this.prevSDP; + } + } + } + + if (!this.hold && this.session.inactive) { + // transport.cc&l=852 - http://goo.gl/0FxxqG + // dtlstransport.h&l=234 - http://goo.gl/7E4sYF + // http://tools.ietf.org/html/rfc4340 + + // From RFC 4145, SDP setup attribute values. + // http://goo.gl/xETJEp && http://goo.gl/3Wgcau + if (createType == 'offer') { + sdp = sdp.replace(/a=setup:passive|a=setup:active|a=setup:holdconn/g, 'a=setup:actpass'); + } else { + sdp = sdp.replace(/a=setup:actpass|a=setup:passive|a=setup:holdconn/g, 'a=setup:active'); + } + + // whilst doing handshake, either media lines were "inactive" + // or no media lines were present + sdp = sdp.replace(/a=inactive/g, 'a=sendrecv'); + } + // this.session.inactive = false; + return sdp; + }, + init: function() { + this.setConstraints(); + this.connection = new RTCPeerConnection(this.iceServers, this.optionalArgument); + + if (this.session.data) { + log('invoked: createDataChannel'); + this.createDataChannel(); + } + + this.connection.onicecandidate = function(event) { + if (!event.candidate) { + if (!self.trickleIce) { + returnSDP(); + } + + return; + } + + if (!self.trickleIce) return; + + self.onicecandidate(event.candidate); + }; + + function returnSDP() { + if (self.returnedSDP) { + self.returnedSDP = false; + return; + }; + self.returnedSDP = true; + + self.onSessionDescription(self.connection.localDescription, self.streaminfo); + } + + this.connection.onaddstream = function(e) { + log('onaddstream', isPluginRTC ? e.stream : toStr(e.stream)); + + self.onaddstream(e.stream, self.session); + }; + + this.connection.onremovestream = function(e) { + self.onremovestream(e.stream); + }; + + this.connection.onsignalingstatechange = function() { + self.connection && self.oniceconnectionstatechange({ + iceConnectionState: self.connection.iceConnectionState, + iceGatheringState: self.connection.iceGatheringState, + signalingState: self.connection.signalingState + }); + }; + + this.connection.oniceconnectionstatechange = function() { + if (!self.connection) return; + + self.oniceconnectionstatechange({ + iceConnectionState: self.connection.iceConnectionState, + iceGatheringState: self.connection.iceGatheringState, + signalingState: self.connection.signalingState + }); + + if (self.trickleIce) return; + + if (self.connection.iceGatheringState == 'complete') { + log('iceGatheringState', self.connection.iceGatheringState); + returnSDP(); + } + }; + + var self = this; + }, + setBandwidth: function(sdp) { + if (isMobileDevice || isFirefox || !this.bandwidth) return sdp; + + var bandwidth = this.bandwidth; + + if (this.session.screen) { + if (!bandwidth.screen) { + warn('It seems that you are not using bandwidth for screen. Screen sharing is expected to fail.'); + } else if (bandwidth.screen < 300) { + warn('It seems that you are using wrong bandwidth value for screen. Screen sharing is expected to fail.'); + } + } + + // if screen; must use at least 300kbs + if (bandwidth.screen && this.session.screen) { + sdp = sdp.replace(/b=AS([^\r\n]+\r\n)/g, ''); + sdp = sdp.replace(/a=mid:video\r\n/g, 'a=mid:video\r\nb=AS:' + bandwidth.screen + '\r\n'); + } + + // remove existing bandwidth lines + if (bandwidth.audio || bandwidth.video || bandwidth.data) { + sdp = sdp.replace(/b=AS([^\r\n]+\r\n)/g, ''); + } + + if (bandwidth.audio) { + sdp = sdp.replace(/a=mid:audio\r\n/g, 'a=mid:audio\r\nb=AS:' + bandwidth.audio + '\r\n'); + } + + if (bandwidth.video) { + sdp = sdp.replace(/a=mid:video\r\n/g, 'a=mid:video\r\nb=AS:' + (this.session.screen ? bandwidth.screen : bandwidth.video) + '\r\n'); + } + + if (bandwidth.data && !this.preferSCTP) { + sdp = sdp.replace(/a=mid:data\r\n/g, 'a=mid:data\r\nb=AS:' + bandwidth.data + '\r\n'); + } + + return sdp; + }, + setConstraints: function() { + var sdpConstraints = setSdpConstraints({ + OfferToReceiveAudio: !!this.session.audio, + OfferToReceiveVideo: !!this.session.video || !!this.session.screen + }); + + if (this.sdpConstraints.mandatory) { + sdpConstraints = setSdpConstraints(this.sdpConstraints.mandatory); + } + + this.constraints = sdpConstraints; + + if (this.constraints) { + log('sdp-constraints', toStr(this.constraints)); + } + + this.optionalArgument = { + optional: this.optionalArgument.optional || [], + mandatory: this.optionalArgument.mandatory || {} + }; + + if (!this.preferSCTP) { + this.optionalArgument.optional.push({ + RtpDataChannels: true + }); + } + + log('optional-argument', toStr(this.optionalArgument)); + + if (!isNull(this.iceServers)) { + var iceCandidates = this.rtcMultiConnection.candidates; + + var stun = iceCandidates.stun; + var turn = iceCandidates.turn; + var host = iceCandidates.host; + + if (!isNull(iceCandidates.reflexive)) stun = iceCandidates.reflexive; + if (!isNull(iceCandidates.relay)) turn = iceCandidates.relay; + + if (!host && !stun && turn) { + this.rtcConfiguration.iceTransports = 'relay'; + } else if (!host && !stun && !turn) { + this.rtcConfiguration.iceTransports = 'none'; + } + + this.iceServers = { + iceServers: this.iceServers, + iceTransports: this.rtcConfiguration.iceTransports + }; + } else this.iceServers = null; + + log('rtc-configuration', toStr(this.iceServers)); + }, + onSdpError: function(e) { + var message = toStr(e); + + if (message && message.indexOf('RTP/SAVPF Expects at least 4 fields') != -1) { + message = 'It seems that you are trying to interop RTP-datachannels with SCTP. It is not supported!'; + } + error('onSdpError:', message); + }, + onSdpSuccess: function() { + log('sdp success'); + }, + onMediaError: function(err) { + error(toStr(err)); + }, + setRemoteDescription: function(sessionDescription, onSdpSuccess) { + if (!sessionDescription) throw 'Remote session description should NOT be NULL.'; + + if (!this.connection) return; + + log('setting remote description', sessionDescription.type, sessionDescription.sdp); + + var self = this; + this.connection.setRemoteDescription( + new RTCSessionDescription(sessionDescription), + onSdpSuccess || this.onSdpSuccess, + function(error) { + if (error.search(/STATE_SENTINITIATE|STATE_INPROGRESS/gi) == -1) { + self.onSdpError(error); + } + } + ); + }, + addIceCandidate: function(candidate) { + var self = this; + if (isPluginRTC) { + RTCIceCandidate(candidate, function(iceCandidate) { + onAddIceCandidate(iceCandidate); + }); + } else onAddIceCandidate(new RTCIceCandidate(candidate)); + + function onAddIceCandidate(iceCandidate) { + self.connection.addIceCandidate(iceCandidate, function() { + log('added:', candidate.sdpMid, candidate.candidate); + }, function() { + error('onIceFailure', arguments, candidate.candidate); + }); + } + }, + createDataChannel: function(channelIdentifier) { + // skip 2nd invocation of createDataChannel + if (this.channels && this.channels.length) return; + + var self = this; + + if (!this.channels) this.channels = []; + + // protocol: 'text/chat', preset: true, stream: 16 + // maxRetransmits:0 && ordered:false && outOfOrderAllowed: false + var dataChannelDict = {}; + + if (this.dataChannelDict) dataChannelDict = this.dataChannelDict; + + if (isChrome && !this.preferSCTP) { + dataChannelDict.reliable = false; // Deprecated! + } + + log('dataChannelDict', toStr(dataChannelDict)); + + if (this.type == 'answer' || isFirefox) { + this.connection.ondatachannel = function(event) { + self.setChannelEvents(event.channel); + }; + } + + if ((isChrome && this.type == 'offer') || isFirefox) { + this.setChannelEvents( + this.connection.createDataChannel(channelIdentifier || 'channel', dataChannelDict) + ); + } + }, + setChannelEvents: function(channel) { + var self = this; + + channel.binaryType = 'arraybuffer'; + + if (this.dataChannelDict.binaryType) { + channel.binaryType = this.dataChannelDict.binaryType; + } + + channel.onmessage = function(event) { + self.onmessage(event.data); + }; + + var numberOfTimes = 0; + channel.onopen = function() { + channel.push = channel.send; + channel.send = function(data) { + if (self.connection.iceConnectionState == 'disconnected') { + return; + } + + if (channel.readyState.search(/closing|closed/g) != -1) { + return; + } + + if (channel.readyState.search(/connecting|open/g) == -1) { + return; + } + + if (channel.readyState == 'connecting') { + numberOfTimes++; + return setTimeout(function() { + if (numberOfTimes < 20) { + channel.send(data); + } else throw 'Number of times exceeded to wait for WebRTC data connection to be opened.'; + }, 1000); + } + try { + channel.push(data); + } catch (e) { + numberOfTimes++; + warn('Data transmission failed. Re-transmitting..', numberOfTimes, toStr(e)); + if (numberOfTimes >= 20) throw 'Number of times exceeded to resend data packets over WebRTC data channels.'; + setTimeout(function() { + channel.send(data); + }, 100); + } + }; + self.onopen(channel); + }; + + channel.onerror = function(event) { + self.onerror(event); + }; + + channel.onclose = function(event) { + self.onclose(event); + }; + + this.channels.push(channel); + }, + addStream: function(stream) { + if (!stream.streamid && !isIE) { + stream.streamid = getRandomString(); + } + + // todo: maybe need to add isAudio/isVideo/isScreen if missing? + + log('attaching stream:', stream.streamid, isPluginRTC ? stream : toStr(stream)); + + this.connection.addStream(stream); + + this.sendStreamId(stream); + this.getStreamInfo(); + }, + attachMediaStreams: function() { + var streams = this.attachStreams; + for (var i = 0; i < streams.length; i++) { + this.addStream(streams[i]); + } + }, + getStreamInfo: function() { + this.streaminfo = ''; + var streams = this.connection.getLocalStreams(); + for (var i = 0; i < streams.length; i++) { + if (i == 0) { + this.streaminfo = JSON.stringify({ + streamid: streams[i].streamid || '', + isScreen: !!streams[i].isScreen, + isAudio: !!streams[i].isAudio, + isVideo: !!streams[i].isVideo, + preMuted: streams[i].preMuted || {} + }); + } else { + this.streaminfo += '----' + JSON.stringify({ + streamid: streams[i].streamid || '', + isScreen: !!streams[i].isScreen, + isAudio: !!streams[i].isAudio, + isVideo: !!streams[i].isVideo, + preMuted: streams[i].preMuted || {} + }); + } + } + }, + recreateOffer: function(renegotiate, callback) { + log('recreating offer'); + + this.type = 'offer'; + this.session = renegotiate; + + // todo: make sure this doesn't affect renegotiation scenarios + // this.setConstraints(); + + this.onSessionDescription = callback; + this.getStreamInfo(); + + // one can renegotiate data connection in existing audio/video/screen connection! + if (this.session.data) { + this.createDataChannel(); + } + + this.getLocalDescription('offer'); + }, + recreateAnswer: function(sdp, session, callback) { + // if(isFirefox) this.create(this.type, this); + + log('recreating answer'); + + this.type = 'answer'; + this.session = session; + + // todo: make sure this doesn't affect renegotiation scenarios + // this.setConstraints(); + + this.onSessionDescription = callback; + this.offerDescription = sdp; + this.getStreamInfo(); + + // one can renegotiate data connection in existing audio/video/screen connection! + if (this.session.data) { + this.createDataChannel(); + } + + this.getLocalDescription('answer'); + } + }; + } + + var FileSaver = { + SaveToDisk: invokeSaveAsDialog + }; + + + function invokeSaveAsDialog(fileUrl, fileName) { + /* + if (typeof navigator.msSaveOrOpenBlob !== 'undefined') { + return navigator.msSaveOrOpenBlob(file, fileFullName); + } else if (typeof navigator.msSaveBlob !== 'undefined') { + return navigator.msSaveBlob(file, fileFullName); + } + */ + + var hyperlink = document.createElement('a'); + hyperlink.href = fileUrl; + hyperlink.target = '_blank'; + hyperlink.download = fileName || fileUrl; + + if (!!navigator.mozGetUserMedia) { + hyperlink.onclick = function() { + (document.body || document.documentElement).removeChild(hyperlink); + }; + (document.body || document.documentElement).appendChild(hyperlink); + } + + var evt = new MouseEvent('click', { + view: window, + bubbles: true, + cancelable: true + }); + + hyperlink.dispatchEvent(evt); + + if (!navigator.mozGetUserMedia) { + URL.revokeObjectURL(hyperlink.href); + } + } + + var TextSender = { + send: function(config) { + var connection = config.connection; + + if (config.text instanceof ArrayBuffer || config.text instanceof DataView) { + return config.channel.send(config.text, config._channel); + } + + var channel = config.channel, + _channel = config._channel, + initialText = config.text, + packetSize = connection.chunkSize || 1000, + textToTransfer = '', + isobject = false; + + if (!isString(initialText)) { + isobject = true; + initialText = JSON.stringify(initialText); + } + + // uuid is used to uniquely identify sending instance + var uuid = getRandomString(); + var sendingTime = new Date().getTime(); + + sendText(initialText); + + function sendText(textMessage, text) { + var data = { + type: 'text', + uuid: uuid, + sendingTime: sendingTime + }; + + if (textMessage) { + text = textMessage; + data.packets = parseInt(text.length / packetSize); + } + + if (text.length > packetSize) + data.message = text.slice(0, packetSize); + else { + data.message = text; + data.last = true; + data.isobject = isobject; + } + + channel.send(data, _channel); + + textToTransfer = text.slice(data.message.length); + + if (textToTransfer.length) { + setTimeout(function() { + sendText(null, textToTransfer); + }, connection.chunkInterval || 100); + } + } + } + }; + + function TextReceiver(connection) { + var content = {}; + + function receive(data, userid, extra) { + // uuid is used to uniquely identify sending instance + var uuid = data.uuid; + if (!content[uuid]) content[uuid] = []; + + content[uuid].push(data.message); + if (data.last) { + var message = content[uuid].join(''); + if (data.isobject) message = JSON.parse(message); + + // latency detection + var receivingTime = new Date().getTime(); + var latency = receivingTime - data.sendingTime; + + var e = { + data: message, + userid: userid, + extra: extra, + latency: latency + }; + + if (message.preRecordedMediaChunk) { + if (!connection.preRecordedMedias[message.streamerid]) { + connection.shareMediaFile(null, null, message.streamerid); + } + connection.preRecordedMedias[message.streamerid].onData(message.chunk); + } else if (connection.autoTranslateText) { + e.original = e.data; + connection.Translator.TranslateText(e.data, function(translatedText) { + e.data = translatedText; + connection.onmessage(e); + }); + } else if (message.isPartOfScreen) { + connection.onpartofscreen(message); + } else connection.onmessage(e); + + delete content[uuid]; + } + } + + return { + receive: receive + }; + } + + // Last time updated at Sep 25, 2015, 08:32:23 + + // Latest file can be found here: https://cdn.webrtc-experiment.com/DetectRTC.js + + // Muaz Khan - www.MuazKhan.com + // MIT License - www.WebRTC-Experiment.com/licence + // Documentation - github.com/muaz-khan/DetectRTC + // ____________ + // DetectRTC.js + + // DetectRTC.hasWebcam (has webcam device!) + // DetectRTC.hasMicrophone (has microphone device!) + // DetectRTC.hasSpeakers (has speakers!) + + (function() { + + 'use strict'; + + var navigator = window.navigator; + + if (navigator.mediaDevices && navigator.mediaDevices.enumerateDevices) { + // Firefox 38+ seems having support of enumerateDevices + // Thanks @xdumaine/enumerateDevices + navigator.enumerateDevices = function(callback) { + navigator.mediaDevices.enumerateDevices().then(callback); + }; + } + + if (typeof navigator !== 'undefined') { + if (typeof navigator.webkitGetUserMedia !== 'undefined') { + navigator.getUserMedia = navigator.webkitGetUserMedia; + } + + if (typeof navigator.mozGetUserMedia !== 'undefined') { + navigator.getUserMedia = navigator.mozGetUserMedia; + } + } else { + navigator = { + getUserMedia: function() {} + }; + } + + var isMobileDevice = !!navigator.userAgent.match(/Android|iPhone|iPad|iPod|BlackBerry|IEMobile/i); + var isEdge = navigator.userAgent.indexOf('Edge') !== -1 && (!!navigator.msSaveOrOpenBlob || !!navigator.msSaveBlob); + + // this one can also be used: + // https://www.websocket.org/js/stuff.js (DetectBrowser.js) + + function getBrowserInfo() { + var nVer = navigator.appVersion; + var nAgt = navigator.userAgent; + var browserName = navigator.appName; + var fullVersion = '' + parseFloat(navigator.appVersion); + var majorVersion = parseInt(navigator.appVersion, 10); + var nameOffset, verOffset, ix; + + // In Opera, the true version is after 'Opera' or after 'Version' + if ((verOffset = nAgt.indexOf('Opera')) !== -1) { + browserName = 'Opera'; + fullVersion = nAgt.substring(verOffset + 6); + + if ((verOffset = nAgt.indexOf('Version')) !== -1) { + fullVersion = nAgt.substring(verOffset + 8); + } + } + // In MSIE, the true version is after 'MSIE' in userAgent + else if ((verOffset = nAgt.indexOf('MSIE')) !== -1) { + browserName = 'IE'; + fullVersion = nAgt.substring(verOffset + 5); + } + // In Chrome, the true version is after 'Chrome' + else if ((verOffset = nAgt.indexOf('Chrome')) !== -1) { + browserName = 'Chrome'; + fullVersion = nAgt.substring(verOffset + 7); + } + // In Safari, the true version is after 'Safari' or after 'Version' + else if ((verOffset = nAgt.indexOf('Safari')) !== -1) { + browserName = 'Safari'; + fullVersion = nAgt.substring(verOffset + 7); + + if ((verOffset = nAgt.indexOf('Version')) !== -1) { + fullVersion = nAgt.substring(verOffset + 8); + } + } + // In Firefox, the true version is after 'Firefox' + else if ((verOffset = nAgt.indexOf('Firefox')) !== -1) { + browserName = 'Firefox'; + fullVersion = nAgt.substring(verOffset + 8); + } + + // In most other browsers, 'name/version' is at the end of userAgent + else if ((nameOffset = nAgt.lastIndexOf(' ') + 1) < (verOffset = nAgt.lastIndexOf('/'))) { + browserName = nAgt.substring(nameOffset, verOffset); + fullVersion = nAgt.substring(verOffset + 1); + + if (browserName.toLowerCase() === browserName.toUpperCase()) { + browserName = navigator.appName; + } + } + + if (isEdge) { + browserName = 'Edge'; + // fullVersion = navigator.userAgent.split('Edge/')[1]; + fullVersion = parseInt(navigator.userAgent.match(/Edge\/(\d+).(\d+)$/)[2], 10); + } + + // trim the fullVersion string at semicolon/space if present + if ((ix = fullVersion.indexOf(';')) !== -1) { + fullVersion = fullVersion.substring(0, ix); + } + + if ((ix = fullVersion.indexOf(' ')) !== -1) { + fullVersion = fullVersion.substring(0, ix); + } + + majorVersion = parseInt('' + fullVersion, 10); + + if (isNaN(majorVersion)) { + fullVersion = '' + parseFloat(navigator.appVersion); + majorVersion = parseInt(navigator.appVersion, 10); + } + + return { + fullVersion: fullVersion, + version: majorVersion, + name: browserName + }; + } + + var isMobile = { + Android: function() { + return navigator.userAgent.match(/Android/i); + }, + BlackBerry: function() { + return navigator.userAgent.match(/BlackBerry/i); + }, + iOS: function() { + return navigator.userAgent.match(/iPhone|iPad|iPod/i); + }, + Opera: function() { + return navigator.userAgent.match(/Opera Mini/i); + }, + Windows: function() { + return navigator.userAgent.match(/IEMobile/i); + }, + any: function() { + return (isMobile.Android() || isMobile.BlackBerry() || isMobile.iOS() || isMobile.Opera() || isMobile.Windows()); + }, + getOsName: function() { + var osName = 'Unknown OS'; + if (isMobile.Android()) { + osName = 'Android'; + } + + if (isMobile.BlackBerry()) { + osName = 'BlackBerry'; + } + + if (isMobile.iOS()) { + osName = 'iOS'; + } + + if (isMobile.Opera()) { + osName = 'Opera Mini'; + } + + if (isMobile.Windows()) { + osName = 'Windows'; + } + + return osName; + } + }; + + var osName = 'Unknown OS'; + + if (isMobile.any()) { + osName = isMobile.getOsName(); + } else { + if (navigator.appVersion.indexOf('Win') !== -1) { + osName = 'Windows'; + } + + if (navigator.appVersion.indexOf('Mac') !== -1) { + osName = 'MacOS'; + } + + if (navigator.appVersion.indexOf('X11') !== -1) { + osName = 'UNIX'; + } + + if (navigator.appVersion.indexOf('Linux') !== -1) { + osName = 'Linux'; + } + } + + + var isCanvasSupportsStreamCapturing = false; + var isVideoSupportsStreamCapturing = false; + ['captureStream', 'mozCaptureStream', 'webkitCaptureStream'].forEach(function(item) { + // asdf + if (item in document.createElement('canvas')) { + isCanvasSupportsStreamCapturing = true; + } + + if (item in document.createElement('video')) { + isVideoSupportsStreamCapturing = true; + } + }); + + // via: https://github.com/diafygi/webrtc-ips + function DetectLocalIPAddress(callback) { + getIPs(function(ip) { + //local IPs + if (ip.match(/^(192\.168\.|169\.254\.|10\.|172\.(1[6-9]|2\d|3[01]))/)) { + callback('Local: ' + ip); + } + + //assume the rest are public IPs + else { + callback('Public: ' + ip); + } + }); + } + + //get the IP addresses associated with an account + function getIPs(callback) { + var ipDuplicates = {}; + + //compatibility for firefox and chrome + var RTCPeerConnection = window.RTCPeerConnection || window.mozRTCPeerConnection || window.webkitRTCPeerConnection; + var useWebKit = !!window.webkitRTCPeerConnection; + + // bypass naive webrtc blocking using an iframe + if (!RTCPeerConnection) { + var iframe = document.getElementById('iframe'); + if (!iframe) { + //<iframe id="iframe" sandbox="allow-same-origin" style="display: none"></iframe> + throw 'NOTE: you need to have an iframe in the page right above the script tag.'; + } + var win = iframe.contentWindow; + RTCPeerConnection = win.RTCPeerConnection || win.mozRTCPeerConnection || win.webkitRTCPeerConnection; + useWebKit = !!win.webkitRTCPeerConnection; + } + + //minimal requirements for data connection + var mediaConstraints = { + optional: [{ + RtpDataChannels: true + }] + }; + + //firefox already has a default stun server in about:config + // media.peerconnection.default_iceservers = + // [{"url": "stun:stun.services.mozilla.com"}] + var servers; + + //add same stun server for chrome + if (useWebKit) { + servers = { + iceServers: [{ + urls: 'stun:stun.services.mozilla.com' + }] + }; + + if (typeof DetectRTC !== 'undefined' && DetectRTC.browser.isFirefox && DetectRTC.browser.version <= 38) { + servers[0] = { + url: servers[0].urls + }; + } + } + + //construct a new RTCPeerConnection + var pc = new RTCPeerConnection(servers, mediaConstraints); + + function handleCandidate(candidate) { + //match just the IP address + var ipRegex = /([0-9]{1,3}(\.[0-9]{1,3}){3})/; + var ipAddress = ipRegex.exec(candidate)[1]; + + //remove duplicates + if (ipDuplicates[ipAddress] === undefined) { + callback(ipAddress); + } + + ipDuplicates[ipAddress] = true; + } + + //listen for candidate events + pc.onicecandidate = function(ice) { + //skip non-candidate events + if (ice.candidate) { + handleCandidate(ice.candidate.candidate); + } + }; + + //create a bogus data channel + pc.createDataChannel(''); + + //create an offer sdp + pc.createOffer(function(result) { + + //trigger the stun server request + pc.setLocalDescription(result, function() {}, function() {}); + + }, function() {}); + + //wait for a while to let everything done + setTimeout(function() { + //read candidate info from local description + var lines = pc.localDescription.sdp.split('\n'); + + lines.forEach(function(line) { + if (line.indexOf('a=candidate:') === 0) { + handleCandidate(line); + } + }); + }, 1000); + } + + var MediaDevices = []; + + // ---------- Media Devices detection + var canEnumerate = false; + + /*global MediaStreamTrack:true */ + if (typeof MediaStreamTrack !== 'undefined' && 'getSources' in MediaStreamTrack) { + canEnumerate = true; + } else if (navigator.mediaDevices && !!navigator.mediaDevices.enumerateDevices) { + canEnumerate = true; + } + + var hasMicrophone = canEnumerate; + var hasSpeakers = canEnumerate; + var hasWebcam = canEnumerate; + + // http://dev.w3.org/2011/webrtc/editor/getusermedia.html#mediadevices + // todo: switch to enumerateDevices when landed in canary. + function checkDeviceSupport(callback) { + // This method is useful only for Chrome! + + if (!navigator.enumerateDevices && window.MediaStreamTrack && window.MediaStreamTrack.getSources) { + navigator.enumerateDevices = window.MediaStreamTrack.getSources.bind(window.MediaStreamTrack); + } + + if (!navigator.enumerateDevices && navigator.enumerateDevices) { + navigator.enumerateDevices = navigator.enumerateDevices.bind(navigator); + } + + if (!navigator.enumerateDevices) { + if (callback) { + callback(); + } + return; + } + + MediaDevices = []; + navigator.enumerateDevices(function(devices) { + devices.forEach(function(_device) { + var device = {}; + for (var d in _device) { + device[d] = _device[d]; + } + + var skip; + MediaDevices.forEach(function(d) { + if (d.id === device.id) { + skip = true; + } + }); + + if (skip) { + return; + } + + // if it is MediaStreamTrack.getSources + if (device.kind === 'audio') { + device.kind = 'audioinput'; + } + + if (device.kind === 'video') { + device.kind = 'videoinput'; + } + + if (!device.deviceId) { + device.deviceId = device.id; + } + + if (!device.id) { + device.id = device.deviceId; + } + + if (!device.label) { + device.label = 'Please invoke getUserMedia once.'; + if (!isHTTPs) { + device.label = 'HTTPs is required to get label of this ' + device.kind + ' device.'; + } + } + + if (device.kind === 'audioinput' || device.kind === 'audio') { + hasMicrophone = true; + } + + if (device.kind === 'audiooutput') { + hasSpeakers = true; + } + + if (device.kind === 'videoinput' || device.kind === 'video') { + hasWebcam = true; + } + + // there is no 'videoouput' in the spec. + + MediaDevices.push(device); + }); + + if (typeof DetectRTC !== 'undefined') { + DetectRTC.MediaDevices = MediaDevices; + DetectRTC.hasMicrophone = hasMicrophone; + DetectRTC.hasSpeakers = hasSpeakers; + DetectRTC.hasWebcam = hasWebcam; + } + + if (callback) { + callback(); + } + }); + } + + // check for microphone/camera support! + checkDeviceSupport(); + + var DetectRTC = {}; + + // ---------- + // DetectRTC.browser.name || DetectRTC.browser.version || DetectRTC.browser.fullVersion + DetectRTC.browser = getBrowserInfo(); + + // DetectRTC.isChrome || DetectRTC.isFirefox || DetectRTC.isEdge + DetectRTC.browser['is' + DetectRTC.browser.name] = true; + + var isHTTPs = location.protocol === 'https:'; + var isNodeWebkit = !!(window.process && (typeof window.process === 'object') && window.process.versions && window.process.versions['node-webkit']); + + // --------- Detect if system supports WebRTC 1.0 or WebRTC 1.1. + var isWebRTCSupported = false; + ['webkitRTCPeerConnection', 'mozRTCPeerConnection', 'RTCIceGatherer'].forEach(function(item) { + if (item in window) { + isWebRTCSupported = true; + } + }); + DetectRTC.isWebRTCSupported = isWebRTCSupported; + + //------- + DetectRTC.isORTCSupported = typeof RTCIceGatherer !== 'undefined'; + + // --------- Detect if system supports screen capturing API + var isScreenCapturingSupported = false; + if (DetectRTC.browser.isChrome && DetectRTC.browser.version >= 35) { + isScreenCapturingSupported = true; + } else if (DetectRTC.browser.isFirefox && DetectRTC.browser.version >= 34) { + isScreenCapturingSupported = true; + } + + if (!isHTTPs) { + isScreenCapturingSupported = false; + } + DetectRTC.isScreenCapturingSupported = isScreenCapturingSupported; + + // --------- Detect if WebAudio API are supported + var webAudio = {}; + ['AudioContext', 'webkitAudioContext', 'mozAudioContext', 'msAudioContext'].forEach(function(item) { + if (webAudio.isSupported && webAudio.isCreateMediaStreamSourceSupported) { + return; + } + if (item in window) { + webAudio.isSupported = true; + + if ('createMediaStreamSource' in window[item].prototype) { + webAudio.isCreateMediaStreamSourceSupported = true; + } + } + }); + DetectRTC.isAudioContextSupported = webAudio.isSupported; + DetectRTC.isCreateMediaStreamSourceSupported = webAudio.isCreateMediaStreamSourceSupported; + + // ---------- Detect if SCTP/RTP channels are supported. + + var isRtpDataChannelsSupported = false; + if (DetectRTC.browser.isChrome && DetectRTC.browser.version > 31) { + isRtpDataChannelsSupported = true; + } + DetectRTC.isRtpDataChannelsSupported = isRtpDataChannelsSupported; + + var isSCTPSupportd = false; + if (DetectRTC.browser.isFirefox && DetectRTC.browser.version > 28) { + isSCTPSupportd = true; + } else if (DetectRTC.browser.isChrome && DetectRTC.browser.version > 25) { + isSCTPSupportd = true; + } else if (DetectRTC.browser.isOpera && DetectRTC.browser.version >= 11) { + isSCTPSupportd = true; + } + DetectRTC.isSctpDataChannelsSupported = isSCTPSupportd; + + // --------- + + DetectRTC.isMobileDevice = isMobileDevice; // "isMobileDevice" boolean is defined in "getBrowserInfo.js" + + // ------ + + DetectRTC.isWebSocketsSupported = 'WebSocket' in window && 2 === window.WebSocket.CLOSING; + DetectRTC.isWebSocketsBlocked = 'Checking'; + + if (DetectRTC.isWebSocketsSupported) { + /* CUSTOM CODE */ + var href = window.location.href; + var hostPatt = new RegExp(window.location.host +"/[^/]*"); + var res = hostPatt.exec(href); + var protocol = window.location.protocol.replace("http","ws"); + + var signalingServerPath = protocol + "//" + res + "/contact"; + var websocket = new WebSocket(signalingServerPath) + // var websocket = new WebSocket('wss://echo.websocket.org:443/'); + /* CUSTOM CODE */ + websocket.onopen = function() { + DetectRTC.isWebSocketsBlocked = false; + + if (DetectRTC.loadCallback) { + DetectRTC.loadCallback(); + } + }; + websocket.onerror = function() { + DetectRTC.isWebSocketsBlocked = true; + + if (DetectRTC.loadCallback) { + DetectRTC.loadCallback(); + } + }; + } + + // ------ + var isGetUserMediaSupported = false; + if (navigator.getUserMedia) { + isGetUserMediaSupported = true; + } else if (navigator.mediaDevices && navigator.mediaDevices.getUserMedia) { + isGetUserMediaSupported = true; + } + if (DetectRTC.browser.isChrome && DetectRTC.browser.version >= 47 && !isHTTPs) { + DetectRTC.isGetUserMediaSupported = 'Requires HTTPs'; + } + DetectRTC.isGetUserMediaSupported = isGetUserMediaSupported; + + // ----------- + DetectRTC.osName = osName; // "osName" is defined in "detectOSName.js" + + // ---------- + DetectRTC.isCanvasSupportsStreamCapturing = isCanvasSupportsStreamCapturing; + DetectRTC.isVideoSupportsStreamCapturing = isVideoSupportsStreamCapturing; + + // ------ + DetectRTC.DetectLocalIPAddress = DetectLocalIPAddress; + + // ------- + DetectRTC.load = function(callback) { + this.loadCallback = callback; + + checkDeviceSupport(callback); + }; + + DetectRTC.MediaDevices = MediaDevices; + DetectRTC.hasMicrophone = hasMicrophone; + DetectRTC.hasSpeakers = hasSpeakers; + DetectRTC.hasWebcam = hasWebcam; + + // ------ + var isSetSinkIdSupported = false; + if ('setSinkId' in document.createElement('video')) { + isSetSinkIdSupported = true; + } + DetectRTC.isSetSinkIdSupported = isSetSinkIdSupported; + + // ----- + var isRTPSenderReplaceTracksSupported = false; + if (DetectRTC.browser.isFirefox /*&& DetectRTC.browser.version > 39*/ ) { + /*global mozRTCPeerConnection:true */ + if ('getSenders' in mozRTCPeerConnection.prototype) { + isRTPSenderReplaceTracksSupported = true; + } + } else if (DetectRTC.browser.isChrome) { + /*global webkitRTCPeerConnection:true */ + if ('getSenders' in webkitRTCPeerConnection.prototype) { + isRTPSenderReplaceTracksSupported = true; + } + } + DetectRTC.isRTPSenderReplaceTracksSupported = isRTPSenderReplaceTracksSupported; + + //------ + var isRemoteStreamProcessingSupported = false; + if (DetectRTC.browser.isFirefox && DetectRTC.browser.version > 38) { + isRemoteStreamProcessingSupported = true; + } + DetectRTC.isRemoteStreamProcessingSupported = isRemoteStreamProcessingSupported; + + //------- + var isApplyConstraintsSupported = false; + + /*global MediaStreamTrack:true */ + if (typeof MediaStreamTrack !== 'undefined' && 'applyConstraints' in MediaStreamTrack.prototype) { + isApplyConstraintsSupported = true; + } + DetectRTC.isApplyConstraintsSupported = isApplyConstraintsSupported; + + //------- + var isMultiMonitorScreenCapturingSupported = false; + if (DetectRTC.browser.isFirefox && DetectRTC.browser.version >= 43) { + // version 43 merely supports platforms for multi-monitors + // version 44 will support exact multi-monitor selection i.e. you can select any monitor for screen capturing. + isMultiMonitorScreenCapturingSupported = true; + } + DetectRTC.isMultiMonitorScreenCapturingSupported = isMultiMonitorScreenCapturingSupported; + + window.DetectRTC = DetectRTC; + + })(); + + // DetectRTC extender + var screenCallback; + + DetectRTC.screen = { + chromeMediaSource: 'screen', + extensionid: ReservedExtensionID, + getSourceId: function(callback) { + if (!callback) throw '"callback" parameter is mandatory.'; + + // make sure that chrome extension is installed. + if (!!DetectRTC.screen.status) { + onstatus(DetectRTC.screen.status); + } else DetectRTC.screen.getChromeExtensionStatus(onstatus); + + function onstatus(status) { + if (status == 'installed-enabled') { + screenCallback = callback; + window.postMessage('get-sourceId', '*'); + return; + } + + DetectRTC.screen.chromeMediaSource = 'screen'; + callback('No-Response'); // chrome extension isn't available + } + }, + onMessageCallback: function(data) { + if (!(isString(data) || !!data.sourceId)) return; + + log('chrome message', data); + + // "cancel" button is clicked + if (data == 'PermissionDeniedError') { + DetectRTC.screen.chromeMediaSource = 'PermissionDeniedError'; + if (screenCallback) return screenCallback('PermissionDeniedError'); + else throw new Error('PermissionDeniedError'); + } + + // extension notified his presence + if (data == 'rtcmulticonnection-extension-loaded') { + DetectRTC.screen.chromeMediaSource = 'desktop'; + if (DetectRTC.screen.onScreenCapturingExtensionAvailable) { + DetectRTC.screen.onScreenCapturingExtensionAvailable(); + + // make sure that this event isn't fired multiple times + DetectRTC.screen.onScreenCapturingExtensionAvailable = null; + } + } + + // extension shared temp sourceId + if (data.sourceId) { + DetectRTC.screen.sourceId = data.sourceId; + if (screenCallback) screenCallback(DetectRTC.screen.sourceId); + } + }, + getChromeExtensionStatus: function(extensionid, callback) { + function _callback(status) { + DetectRTC.screen.status = status; + callback(status); + } + + if (isFirefox) return _callback('not-chrome'); + + if (arguments.length != 2) { + callback = extensionid; + extensionid = this.extensionid; + } + + var image = document.createElement('img'); + image.src = 'chrome-extension://' + extensionid + '/icon.png'; + image.onload = function() { + DetectRTC.screen.chromeMediaSource = 'screen'; + window.postMessage('are-you-there', '*'); + setTimeout(function() { + if (DetectRTC.screen.chromeMediaSource == 'screen') { + _callback( + DetectRTC.screen.chromeMediaSource == 'desktop' ? 'installed-enabled' : 'installed-disabled' /* if chrome extension isn't permitted for current domain, then it will be installed-disabled all the time even if extension is enabled. */ + ); + } else _callback('installed-enabled'); + }, 2000); + }; + image.onerror = function() { + _callback('not-installed'); + }; + } + }; + + // if IE + if (!window.addEventListener) { + window.addEventListener = function(el, eventName, eventHandler) { + if (!el.attachEvent) return; + el.attachEvent('on' + eventName, eventHandler); + }; + } + + function listenEventHandler(eventName, eventHandler) { + window.removeEventListener(eventName, eventHandler); + window.addEventListener(eventName, eventHandler, false); + } + + window.addEventListener('message', function(event) { + if (event.origin != window.location.origin) { + return; + } + + DetectRTC.screen.onMessageCallback(event.data); + }); + + function setDefaults(connection) { + var DetectRTC = window.DetectRTC || {}; + + // www.RTCMultiConnection.org/docs/userid/ + connection.userid = getRandomString(); + + // www.RTCMultiConnection.org/docs/session/ + connection.session = { + audio: true, + video: true + }; + + // www.RTCMultiConnection.org/docs/maxParticipantsAllowed/ + connection.maxParticipantsAllowed = 256; + + // www.RTCMultiConnection.org/docs/direction/ + // 'many-to-many' / 'one-to-many' / 'one-to-one' / 'one-way' + connection.direction = 'many-to-many'; + + // www.RTCMultiConnection.org/docs/mediaConstraints/ + connection.mediaConstraints = { + mandatory: {}, // kept for backward compatibility + optional: [], // kept for backward compatibility + audio: { + mandatory: {}, + optional: [] + }, + video: { + mandatory: {}, + optional: [] + } + }; + + // www.RTCMultiConnection.org/docs/candidates/ + connection.candidates = { + host: true, + stun: true, + turn: true + }; + + connection.sdpConstraints = {}; + + // as @serhanters proposed in #225 + // it will auto fix "all" renegotiation scenarios + connection.sdpConstraints.mandatory = { + OfferToReceiveAudio: true, + OfferToReceiveVideo: true + }; + + connection.privileges = { + canStopRemoteStream: false, // user can stop remote streams + canMuteRemoteStream: false // user can mute remote streams + }; + + connection.iceProtocols = { + tcp: true, + udp: true + }; + + // www.RTCMultiConnection.org/docs/preferSCTP/ + connection.preferSCTP = isFirefox || chromeVersion >= 32 ? true : false; + connection.chunkInterval = isFirefox || chromeVersion >= 32 ? 100 : 500; // 500ms for RTP and 100ms for SCTP + connection.chunkSize = isFirefox || chromeVersion >= 32 ? 13 * 1000 : 1000; // 1000 chars for RTP and 13000 chars for SCTP + + // www.RTCMultiConnection.org/docs/fakeDataChannels/ + connection.fakeDataChannels = false; + + connection.waitUntilRemoteStreamStartsFlowing = null; // NULL == true + + // auto leave on page unload + connection.leaveOnPageUnload = true; + + // get ICE-servers from XirSys + connection.getExternalIceServers = isChrome; + + // www.RTCMultiConnection.org/docs/UA/ + connection.UA = { + isFirefox: isFirefox, + isChrome: isChrome, + isMobileDevice: isMobileDevice, + version: isChrome ? chromeVersion : firefoxVersion, + isNodeWebkit: isNodeWebkit, + isSafari: isSafari, + isIE: isIE, + isOpera: isOpera + }; + + // file queue: to store previous file objects in memory; + // and stream over newly connected peers + // www.RTCMultiConnection.org/docs/fileQueue/ + connection.fileQueue = {}; + + // this array is aimed to store all renegotiated streams' session-types + connection.renegotiatedSessions = {}; + + // www.RTCMultiConnection.org/docs/channels/ + connection.channels = {}; + + // www.RTCMultiConnection.org/docs/extra/ + connection.extra = {}; + + // www.RTCMultiConnection.org/docs/bandwidth/ + connection.bandwidth = { + screen: 300 // 300kbps (dirty workaround) + }; + + // www.RTCMultiConnection.org/docs/caniuse/ + connection.caniuse = { + RTCPeerConnection: DetectRTC.isWebRTCSupported, + getUserMedia: !!navigator.webkitGetUserMedia || !!navigator.mozGetUserMedia, + AudioContext: DetectRTC.isAudioContextSupported, + + // there is no way to check whether "getUserMedia" flag is enabled or not! + ScreenSharing: DetectRTC.isScreenCapturingSupported, + RtpDataChannels: DetectRTC.isRtpDataChannelsSupported, + SctpDataChannels: DetectRTC.isSctpDataChannelsSupported + }; + + // www.RTCMultiConnection.org/docs/snapshots/ + connection.snapshots = {}; + + // www.WebRTC-Experiment.com/demos/MediaStreamTrack.getSources.html + connection._mediaSources = {}; + + // www.RTCMultiConnection.org/docs/devices/ + connection.devices = {}; + + // www.RTCMultiConnection.org/docs/language/ (to see list of all supported languages) + connection.language = 'en'; + + // www.RTCMultiConnection.org/docs/autoTranslateText/ + connection.autoTranslateText = false; + + // please use your own Google Translate API key + // Google Translate is a paid service. + connection.googKey = 'AIzaSyCgB5hmFY74WYB-EoWkhr9cAGr6TiTHrEE'; + + connection.localStreamids = []; + connection.localStreams = {}; + + // this object stores pre-recorded media streaming uids + // multiple pre-recorded media files can be streamed concurrently. + connection.preRecordedMedias = {}; + + // www.RTCMultiConnection.org/docs/attachStreams/ + connection.attachStreams = []; + + // www.RTCMultiConnection.org/docs/detachStreams/ + connection.detachStreams = []; + + connection.optionalArgument = { + optional: [{ + DtlsSrtpKeyAgreement: true + }, { + googImprovedWifiBwe: true + }, { + googScreencastMinBitrate: 300 + }], + mandatory: {} + }; + + connection.dataChannelDict = {}; + + // www.RTCMultiConnection.org/docs/dontAttachStream/ + connection.dontAttachStream = false; + + // www.RTCMultiConnection.org/docs/dontCaptureUserMedia/ + connection.dontCaptureUserMedia = false; + + // this feature added to keep users privacy and + // make sure HTTPs pages NEVER auto capture users media + // isChrome && location.protocol == 'https:' + connection.preventSSLAutoAllowed = false; + + connection.autoReDialOnFailure = true; + connection.isInitiator = false; + + // access DetectRTC.js features directly! + connection.DetectRTC = DetectRTC; + + // you can falsify it to merge all ICE in SDP and share only SDP! + // such mechanism is useful for SIP/XMPP and XMLHttpRequest signaling + // bug: renegotiation fails if "trickleIce" is false + connection.trickleIce = true; + + // this object stores list of all sessions in current channel + connection.sessionDescriptions = {}; + + // this object stores current user's session-description + // it is set only for initiator + // it is set as soon as "open" method is invoked. + connection.sessionDescription = null; + + // resources used in RTCMultiConnection + connection.resources = { + // CUSTOM CODE // + /* Commenting this block as we do not wasnt external dependencies + * + RecordRTC: 'https://cdn.webrtc-experiment.com/RecordRTC.js', + PreRecordedMediaStreamer: 'https://cdn.webrtc-experiment.com/PreRecordedMediaStreamer.js', + customGetUserMediaBar: 'https://cdn.webrtc-experiment.com/navigator.customGetUserMediaBar.js', + html2canvas: 'https://cdn.webrtc-experiment.com/screenshot.js', + hark: 'https://cdn.webrtc-experiment.com/hark.js', + firebase: 'https://cdn.webrtc-experiment.com/firebase.js', + firebaseio: 'https://webrtc-signaling.firebaseio.com/', + + + + getConnectionStats: 'https://cdn.webrtc-experiment.com/getConnectionStats.js', + FileBufferReader: 'https://cdn.webrtc-experiment.com/FileBufferReader.js' + */ + + // CUSTOM CODE // + + + }; + + // www.RTCMultiConnection.org/docs/body/ + connection.body = document.body || document.documentElement; + connection.screenbody = null;// document.body || document.documentElement; + connection.videobody = null;//document.body || document.documentElement; + + // www.RTCMultiConnection.org/docs/peers/ + connection.peers = {}; + + // www.RTCMultiConnection.org/docs/firebase/ + connection.firebase = 'chat'; + + connection.numberOfSessions = 0; + connection.numberOfConnectedUsers = 0; + + // by default, data-connections will always be getting + // FileBufferReader.js if absent. + connection.enableFileSharing = true; + + // www.RTCMultiConnection.org/docs/autoSaveToDisk/ + // to make sure file-saver dialog is not invoked. + connection.autoSaveToDisk = false; + + connection.processSdp = function(sdp) { + // process sdp here + return sdp; + }; + + // www.RTCMultiConnection.org/docs/onmessage/ + connection.onmessage = function(e) { + log('onmessage', toStr(e)); + }; + + // www.RTCMultiConnection.org/docs/onopen/ + connection.onopen = function(e) { + log('Data connection is opened between you and', e.userid); + }; + + // www.RTCMultiConnection.org/docs/onerror/ + connection.onerror = function(e) { + error(onerror, toStr(e)); + }; + + // www.RTCMultiConnection.org/docs/onclose/ + connection.onclose = function(e) { + warn('onclose', toStr(e)); + + // todo: should we use "stop" or "remove"? + // BTW, it is remote user! + connection.streams.remove({ + userid: e.userid + }); + }; + + var progressHelper = {}; + + // www.RTCMultiConnection.org/docs/onFileStart/ + connection.onFileStart = function(file) { + var div = document.createElement('div'); + div.title = file.name; + div.innerHTML = '<label>0%</label> <progress></progress>'; + connection.body.insertBefore(div, connection.body.firstChild); + progressHelper[file.uuid] = { + div: div, + progress: div.querySelector('progress'), + label: div.querySelector('label') + }; + progressHelper[file.uuid].progress.max = file.maxChunks; + }; + + // www.RTCMultiConnection.org/docs/onFileProgress/ + connection.onFileProgress = function(chunk) { + var helper = progressHelper[chunk.uuid]; + if (!helper) return; + helper.progress.value = chunk.currentPosition || chunk.maxChunks || helper.progress.max; + updateLabel(helper.progress, helper.label); + }; + + // www.RTCMultiConnection.org/docs/onFileEnd/ + connection.onFileEnd = function(file) { + if (progressHelper[file.uuid]) progressHelper[file.uuid].div.innerHTML = '<a href="' + file.url + '" target="_blank" download="' + file.name + '">' + file.name + '</a>'; + + // for backward compatibility + if (connection.onFileSent || connection.onFileReceived) { + if (connection.onFileSent) connection.onFileSent(file, file.uuid); + if (connection.onFileReceived) connection.onFileReceived(file.name, file); + } + }; + + function updateLabel(progress, label) { + if (progress.position == -1) return; + var position = +progress.position.toFixed(2).split('.')[1] || 100; + label.innerHTML = position + '%'; + } + + // www.RTCMultiConnection.org/docs/onstream/ + connection.onstream = function(e) { + // CUSTOM CODE // + + if(e.isVideo || e.isAudio) + { + var videoTag = e.mediaElement; + var videoType = e.type; + var parentDiv = connection.videobody; + + if(videoType == "local") + { + videoTag.style.top = "auto"; + videoTag.style.position = "absolute"; + //videoTag.style.left = (parentDiv.offsetWidth - 160) + "px"; + videoTag.style.height = "150px"; + videoTag.style.width = "150px"; + videoTag.style.zIndex = 1; + + } + else if(videoType == "remote") + { + videoTag.style.top = "auto"; + videoTag.style.position = "absolute"; + videoTag.style.zIndex = -1; + } + + parentDiv.appendChild(videoTag); + } + else if(e.isScreen) + { + var screenTag = e.mediaElement; + var screenType = e.type; + var parentDiv = connection.screenbody; + + if(screenType == "local") + { + // no need to display this because the person sharing his/her screen doesn't have to see whats being shared + // enabled for demo purposes + parentDiv.appendChild(screenTag); + } + else if(screenType == "remote") + { + parentDiv.appendChild(screenTag); + } + + + } + + else + connection.body.insertBefore(e.mediaElement, connection.body.firstChild); + + // CUSTOM CODE // + }; + + // www.RTCMultiConnection.org/docs/onStreamEndedHandler/ + connection.onstreamended = function(e) { + log('onStreamEndedHandler:', e); + + if (!e.mediaElement) { + return warn('Event.mediaElement is undefined', e); + } + if (!e.mediaElement.parentNode) { + e.mediaElement = document.getElementById(e.streamid); + + if (!e.mediaElement) { + return warn('Event.mediaElement is undefined', e); + } + + if (!e.mediaElement.parentNode) { + return warn('Event.mediElement.parentNode is null.', e); + } + } + + e.mediaElement.parentNode.removeChild(e.mediaElement); + }; + + // todo: need to write documentation link + connection.onSessionClosed = function(session) { + if (session.isEjected) { + warn(session.userid, 'ejected you.'); + } else warn('Session has been closed.', session); + }; + + // www.RTCMultiConnection.org/docs/onmute/ + connection.onmute = function(e) { + if (e.isVideo && e.mediaElement) { + e.mediaElement.pause(); + e.mediaElement.setAttribute('poster', e.snapshot || connection.resources.muted); + } + if (e.isAudio && e.mediaElement) { + e.mediaElement.muted = true; + } + }; + + // www.RTCMultiConnection.org/docs/onunmute/ + connection.onunmute = function(e) { + if (e.isVideo && e.mediaElement) { + e.mediaElement.play(); + e.mediaElement.removeAttribute('poster'); + } + if (e.isAudio && e.mediaElement) { + e.mediaElement.muted = false; + } + }; + + // www.RTCMultiConnection.org/docs/onleave/ + connection.onleave = function(e) { + log('onleave', toStr(e)); + }; + + connection.token = getRandomString; + + connection.peers[connection.userid] = { + drop: function() { + connection.drop(); + }, + renegotiate: function() {}, + addStream: function() {}, + hold: function() {}, + unhold: function() {}, + changeBandwidth: function() {}, + sharePartOfScreen: function() {} + }; + + connection._skip = ['stop', 'mute', 'unmute', '_private', '_selectStreams', 'selectFirst', 'selectAll', 'remove']; + + // www.RTCMultiConnection.org/docs/streams/ + connection.streams = { + mute: function(session) { + this._private(session, true); + }, + unmute: function(session) { + this._private(session, false); + }, + _private: function(session, enabled) { + if (session && !isString(session)) { + for (var stream in this) { + if (connection._skip.indexOf(stream) == -1) { + _muteOrUnMute(this[stream], session, enabled); + } + } + + function _muteOrUnMute(stream, session, isMute) { + if (session.local && stream.type != 'local') return; + if (session.remote && stream.type != 'remote') return; + + if (session.isScreen && !stream.isScreen) return; + if (session.isAudio && !stream.isAudio) return; + if (session.isVideo && !stream.isVideo) return; + + if (isMute) stream.mute(session); + else stream.unmute(session); + } + return; + } + + // implementation from #68 + for (var stream in this) { + if (connection._skip.indexOf(stream) == -1) { + this[stream]._private(session, enabled); + } + } + }, + stop: function(type) { + var _stream; + for (var stream in this) { + if (connection._skip.indexOf(stream) == -1) { + _stream = this[stream]; + + if (!type) _stream.stop(); + + else if (isString(type)) { + // connection.streams.stop('screen'); + var config = {}; + config[type] = true; + _stopStream(_stream, config); + } else _stopStream(_stream, type); + } + } + + function _stopStream(_stream, config) { + // connection.streams.stop({ remote: true, userid: 'remote-userid' }); + if (config.userid && _stream.userid != config.userid) return; + + if (config.local && _stream.type != 'local') return; + if (config.remote && _stream.type != 'remote') return; + + if (config.screen && !!_stream.isScreen) { + _stream.stop(); + } + + if (config.audio && !!_stream.isAudio) { + _stream.stop(); + } + + if (config.video && !!_stream.isVideo) { + _stream.stop(); + } + + // connection.streams.stop('local'); + if (!config.audio && !config.video && !config.screen) { + _stream.stop(); + } + } + }, + remove: function(type) { + var _stream; + for (var stream in this) { + if (connection._skip.indexOf(stream) == -1) { + _stream = this[stream]; + + if (!type) _stopAndRemoveStream(_stream, { + local: true, + remote: true + }); + + else if (isString(type)) { + // connection.streams.stop('screen'); + var config = {}; + config[type] = true; + _stopAndRemoveStream(_stream, config); + } else _stopAndRemoveStream(_stream, type); + } + } + + function _stopAndRemoveStream(_stream, config) { + // connection.streams.remove({ remote: true, userid: 'remote-userid' }); + if (config.userid && _stream.userid != config.userid) return; + + if (config.local && _stream.type != 'local') return; + if (config.remote && _stream.type != 'remote') return; + + if (config.screen && !!_stream.isScreen) { + endStream(_stream); + } + + if (config.audio && !!_stream.isAudio) { + endStream(_stream); + } + + if (config.video && !!_stream.isVideo) { + endStream(_stream); + } + + // connection.streams.remove('local'); + if (!config.audio && !config.video && !config.screen) { + endStream(_stream); + } + } + + function endStream(_stream) { + onStreamEndedHandler(_stream, connection); + delete connection.streams[_stream.streamid]; + } + }, + selectFirst: function(args) { + return this._selectStreams(args, false); + }, + selectAll: function(args) { + return this._selectStreams(args, true); + }, + _selectStreams: function(args, all) { + if (!args || isString(args) || isEmpty(args)) throw 'Invalid arguments.'; + + // if userid is used then both local/remote shouldn't be auto-set + if (isNull(args.local) && isNull(args.remote) && isNull(args.userid)) { + args.local = args.remote = true; + } + + if (!args.isAudio && !args.isVideo && !args.isScreen) { + args.isAudio = args.isVideo = args.isScreen = true; + } + + var selectedStreams = []; + for (var stream in this) { + if (connection._skip.indexOf(stream) == -1 && (stream = this[stream]) && ((args.local && stream.type == 'local') || (args.remote && stream.type == 'remote') || (args.userid && stream.userid == args.userid))) { + if (args.isVideo && stream.isVideo) { + selectedStreams.push(stream); + } + + if (args.isAudio && stream.isAudio) { + selectedStreams.push(stream); + } + + if (args.isScreen && stream.isScreen) { + selectedStreams.push(stream); + } + } + } + + return !!all ? selectedStreams : selectedStreams[0]; + } + }; + + var iceServers = []; + + // CUSTOM CODE // + // these servers are provided by research + iceServers.push({ + url: '' /*TODO To test this WebRTC with some open stun and turn test servers*/ + }); + + iceServers.push({ + url: 'turn:207.140.168.120:3478', + credential: 'xxx', + username: 'xxx' + }); + + iceServers.push({ + url: 'turn:207.140.168.120:443?transport=tcp', + credential: 'harmfulmustard', + username: 'ambient' + }); + + /* CHANGED: Fusion: These are servers for testing purposes + + iceServers.push({ + url: 'stun:stun.l.google.com:19302' + }); + + iceServers.push({ + url: 'stun:stun.anyfirewall.com:3478' + }); + + iceServers.push({ + url: 'turn:turn.bistri.com:80', + credential: 'homeo', + username: 'homeo' + }); + + iceServers.push({ + url: 'turn:turn.anyfirewall.com:443?transport=tcp', + credential: 'webrtc', + username: 'webrtc' + }); + + */ + // CUSTOM CODE // + connection.iceServers = iceServers; + + connection.rtcConfiguration = { + iceServers: null, + iceTransports: 'all', // none || relay || all - ref: http://goo.gl/40I39K + peerIdentity: false + }; + + // www.RTCMultiConnection.org/docs/media/ + connection.media = { + min: function(width, height) { + if (!connection.mediaConstraints.video) return; + + if (!connection.mediaConstraints.video.mandatory) { + connection.mediaConstraints.video.mandatory = {}; + } + connection.mediaConstraints.video.mandatory.minWidth = width; + connection.mediaConstraints.video.mandatory.minHeight = height; + }, + max: function(width, height) { + if (!connection.mediaConstraints.video) return; + + if (!connection.mediaConstraints.video.mandatory) { + connection.mediaConstraints.video.mandatory = {}; + } + + connection.mediaConstraints.video.mandatory.maxWidth = width; + connection.mediaConstraints.video.mandatory.maxHeight = height; + } + }; + + connection._getStream = function(event) { + var resultingObject = merge({ + sockets: event.socket ? [event.socket] : [] + }, event); + + resultingObject.stop = function() { + var self = this; + + self.sockets.forEach(function(socket) { + if (self.type == 'local') { + socket.send({ + streamid: self.streamid, + stopped: true + }); + } + + if (self.type == 'remote') { + socket.send({ + promptStreamStop: true, + streamid: self.streamid + }); + } + }); + + if (self.type == 'remote') return; + + var stream = self.stream; + if (stream) self.rtcMultiConnection.stopMediaStream(stream); + }; + + resultingObject.mute = function(session) { + this.muted = true; + this._private(session, true); + }; + + resultingObject.unmute = function(session) { + this.muted = false; + this._private(session, false); + }; + + function muteOrUnmuteLocally(session, isPause, mediaElement) { + if (!mediaElement) return; + var lastPauseState = mediaElement.onpause; + var lastPlayState = mediaElement.onplay; + mediaElement.onpause = mediaElement.onplay = function() {}; + + if (isPause) mediaElement.pause(); + else mediaElement.play(); + + mediaElement.onpause = lastPauseState; + mediaElement.onplay = lastPlayState; + } + + resultingObject._private = function(session, enabled) { + if (session && !isNull(session.sync) && session.sync == false) { + muteOrUnmuteLocally(session, enabled, this.mediaElement); + return; + } + + muteOrUnmute({ + root: this, + session: session, + enabled: enabled, + stream: this.stream + }); + }; + + resultingObject.startRecording = function(session) { + var self = this; + + if (!session) { + session = { + audio: true, + video: true + }; + } + + if (isString(session)) { + session = { + audio: session == 'audio', + video: session == 'video' + }; + } + + if (!window.RecordRTC) { + return loadScript(self.rtcMultiConnection.resources.RecordRTC, function() { + self.startRecording(session); + }); + } + + log('started recording session', session); + + self.videoRecorder = self.audioRecorder = null; + + if (isFirefox) { + // firefox supports both audio/video recording in single webm file + if (session.video) { + self.videoRecorder = RecordRTC(self.stream, { + type: 'video' + }); + } else if (session.audio) { + self.audioRecorder = RecordRTC(self.stream, { + type: 'audio' + }); + } + } else if (isChrome) { + // chrome supports recording in two separate files: WAV and WebM + if (session.video) { + self.videoRecorder = RecordRTC(self.stream, { + type: 'video' + }); + } + + if (session.audio) { + self.audioRecorder = RecordRTC(self.stream, { + type: 'audio' + }); + } + } + + if (self.audioRecorder) { + self.audioRecorder.startRecording(); + } + + if (self.videoRecorder) self.videoRecorder.startRecording(); + }; + + resultingObject.stopRecording = function(callback, session) { + if (!session) { + session = { + audio: true, + video: true + }; + } + + if (isString(session)) { + session = { + audio: session == 'audio', + video: session == 'video' + }; + } + + log('stopped recording session', session); + + var self = this; + + if (session.audio && self.audioRecorder) { + self.audioRecorder.stopRecording(function() { + if (session.video && self.videoRecorder) { + self.videoRecorder.stopRecording(function() { + callback({ + audio: self.audioRecorder.getBlob(), + video: self.videoRecorder.getBlob() + }); + }); + } else callback({ + audio: self.audioRecorder.getBlob() + }); + }); + } else if (session.video && self.videoRecorder) { + self.videoRecorder.stopRecording(function() { + callback({ + video: self.videoRecorder.getBlob() + }); + }); + } + }; + + resultingObject.takeSnapshot = function(callback) { + takeSnapshot({ + mediaElement: this.mediaElement, + userid: this.userid, + connection: connection, + callback: callback + }); + }; + + // redundant: kept only for backward compatibility + resultingObject.streamObject = resultingObject; + + return resultingObject; + }; + + // new RTCMultiConnection().set({properties}).connect() + connection.set = function(properties) { + for (var property in properties) { + this[property] = properties[property]; + } + return this; + }; + + // www.RTCMultiConnection.org/docs/onMediaError/ + connection.onMediaError = function(event) { + error('name', event.name); + error('constraintName', toStr(event.constraintName)); + error('message', event.message); + error('original session', event.session); + }; + + // www.RTCMultiConnection.org/docs/takeSnapshot/ + connection.takeSnapshot = function(userid, callback) { + takeSnapshot({ + userid: userid, + connection: connection, + callback: callback + }); + }; + + connection.saveToDisk = function(blob, fileName) { + if (blob.size && blob.type) FileSaver.SaveToDisk(URL.createObjectURL(blob), fileName || blob.name || blob.type.replace('/', '-') + blob.type.split('/')[1]); + else FileSaver.SaveToDisk(blob, fileName); + }; + + // www.RTCMultiConnection.org/docs/selectDevices/ + connection.selectDevices = function(device1, device2) { + if (device1) select(this.devices[device1]); + if (device2) select(this.devices[device2]); + + function select(device) { + if (!device) return; + connection._mediaSources[device.kind] = device.id; + } + }; + + // www.RTCMultiConnection.org/docs/getDevices/ + connection.getDevices = function(callback) { + // if, not yet fetched. + if (!DetectRTC.MediaDevices.length) { + return setTimeout(function() { + connection.getDevices(callback); + }, 1000); + } + + // loop over all audio/video input/output devices + DetectRTC.MediaDevices.forEach(function(device) { + connection.devices[device.deviceId] = device; + }); + + if (callback) callback(connection.devices); + }; + + connection.getMediaDevices = connection.enumerateDevices = function(callback) { + if (!callback) throw 'callback is mandatory.'; + connection.getDevices(function() { + callback(connection.DetectRTC.MediaDevices); + }); + }; + + // www.RTCMultiConnection.org/docs/onCustomMessage/ + connection.onCustomMessage = function(message) { + log('Custom message', message); + }; + + // www.RTCMultiConnection.org/docs/ondrop/ + connection.ondrop = function(droppedBy) { + log('Media connection is dropped by ' + droppedBy); + }; + + // www.RTCMultiConnection.org/docs/drop/ + connection.drop = function(config) { + config = config || {}; + connection.attachStreams = []; + + // "drop" should detach all local streams + for (var stream in connection.streams) { + if (connection._skip.indexOf(stream) == -1) { + stream = connection.streams[stream]; + if (stream.type == 'local') { + connection.detachStreams.push(stream.streamid); + onStreamEndedHandler(stream, connection); + } else onStreamEndedHandler(stream, connection); + } + } + + // www.RTCMultiConnection.org/docs/sendCustomMessage/ + connection.sendCustomMessage({ + drop: true, + dontRenegotiate: isNull(config.renegotiate) ? true : config.renegotiate + }); + }; + + // www.RTCMultiConnection.org/docs/Translator/ + connection.Translator = { + TranslateText: function(text, callback) { + // if(location.protocol === 'https:') return callback(text); + + var newScript = document.createElement('script'); + newScript.type = 'text/javascript'; + + var sourceText = encodeURIComponent(text); // escape + + var randomNumber = 'method' + connection.token(); + window[randomNumber] = function(response) { + if (response.data && response.data.translations[0] && callback) { + callback(response.data.translations[0].translatedText); + } + + if (response.error && response.error.message == 'Daily Limit Exceeded') { + warn('Text translation failed. Error message: "Daily Limit Exceeded."'); + + // returning original text + callback(text); + } + }; + + var source = 'https://www.googleapis.com/language/translate/v2?key=' + connection.googKey + '&target=' + (connection.language || 'en-US') + '&callback=window.' + randomNumber + '&q=' + sourceText; + newScript.src = source; + document.getElementsByTagName('head')[0].appendChild(newScript); + } + }; + + // you can easily override it by setting it NULL! + connection.setDefaultEventsForMediaElement = function(mediaElement, streamid) { + mediaElement.onpause = function() { + if (connection.streams[streamid] && !connection.streams[streamid].muted) { + connection.streams[streamid].mute(); + } + }; + + // todo: need to make sure that "onplay" EVENT doesn't play self-voice! + mediaElement.onplay = function() { + if (connection.streams[streamid] && connection.streams[streamid].muted) { + connection.streams[streamid].unmute(); + } + }; + + var volumeChangeEventFired = false; + mediaElement.onvolumechange = function() { + if (!volumeChangeEventFired) { + volumeChangeEventFired = true; + connection.streams[streamid] && setTimeout(function() { + var root = connection.streams[streamid]; + connection.streams[streamid].sockets.forEach(function(socket) { + socket.send({ + streamid: root.streamid, + isVolumeChanged: true, + volume: mediaElement.volume + }); + }); + volumeChangeEventFired = false; + }, 2000); + } + }; + }; + + // www.RTCMultiConnection.org/docs/onMediaFile/ + connection.onMediaFile = function(e) { + log('onMediaFile', e); + connection.body.appendChild(e.mediaElement); + }; + + // www.RTCMultiConnection.org/docs/shareMediaFile/ + // this method handles pre-recorded media streaming + connection.shareMediaFile = function(file, video, streamerid) { + streamerid = streamerid || connection.token(); + + if (!PreRecordedMediaStreamer) { + loadScript(connection.resources.PreRecordedMediaStreamer, function() { + connection.shareMediaFile(file, video, streamerid); + }); + return streamerid; + } + + return PreRecordedMediaStreamer.shareMediaFile({ + file: file, + video: video, + streamerid: streamerid, + connection: connection + }); + }; + + // www.RTCMultiConnection.org/docs/onpartofscreen/ + connection.onpartofscreen = function(e) { + var image = document.createElement('img'); + image.src = e.screenshot; + connection.body.appendChild(image); + }; + + connection.skipLogs = function() { + log = error = warn = function() {}; + }; + + // www.RTCMultiConnection.org/docs/hold/ + connection.hold = function(mLine) { + for (var peer in connection.peers) { + connection.peers[peer].hold(mLine); + } + }; + + // www.RTCMultiConnection.org/docs/onhold/ + connection.onhold = function(track) { + log('onhold', track); + + if (track.kind != 'audio') { + track.mediaElement.pause(); + track.mediaElement.setAttribute('poster', track.screenshot || connection.resources.muted); + } + if (track.kind == 'audio') { + track.mediaElement.muted = true; + } + }; + + // www.RTCMultiConnection.org/docs/unhold/ + connection.unhold = function(mLine) { + for (var peer in connection.peers) { + connection.peers[peer].unhold(mLine); + } + }; + + // www.RTCMultiConnection.org/docs/onunhold/ + connection.onunhold = function(track) { + log('onunhold', track); + + if (track.kind != 'audio') { + track.mediaElement.play(); + track.mediaElement.removeAttribute('poster'); + } + if (track.kind != 'audio') { + track.mediaElement.muted = false; + } + }; + + connection.sharePartOfScreen = function(args) { + var lastScreenshot = ''; + + function partOfScreenCapturer() { + // if stopped + if (connection.partOfScreen && !connection.partOfScreen.sharing) { + return; + } + + capturePartOfScreen({ + element: args.element, + connection: connection, + callback: function(screenshot) { + // don't share repeated content + if (screenshot != lastScreenshot) { + lastScreenshot = screenshot; + + for (var channel in connection.channels) { + connection.channels[channel].send({ + screenshot: screenshot, + isPartOfScreen: true + }); + } + } + + // "once" can be used to share single screenshot + !args.once && setTimeout(partOfScreenCapturer, args.interval || 200); + } + }); + } + + partOfScreenCapturer(); + + connection.partOfScreen = merge({ + sharing: true + }, args); + }; + + connection.pausePartOfScreenSharing = function() { + for (var peer in connection.peers) { + connection.peers[peer].pausePartOfScreenSharing = true; + } + + if (connection.partOfScreen) { + connection.partOfScreen.sharing = false; + } + }; + + connection.resumePartOfScreenSharing = function() { + for (var peer in connection.peers) { + connection.peers[peer].pausePartOfScreenSharing = false; + } + + if (connection.partOfScreen) { + connection.partOfScreen.sharing = true; + } + }; + + connection.stopPartOfScreenSharing = function() { + for (var peer in connection.peers) { + connection.peers[peer].stopPartOfScreenSharing = true; + } + + if (connection.partOfScreen) { + connection.partOfScreen.sharing = false; + } + }; + + connection.takeScreenshot = function(element, callback) { + if (!element || !callback) throw 'Invalid number of arguments.'; + + if (!window.html2canvas) { + return loadScript(connection.resources.html2canvas, function() { + connection.takeScreenshot(element); + }); + } + + if (isString(element)) { + element = document.querySelector(element); + if (!element) element = document.getElementById(element); + } + if (!element) throw 'HTML Element is inaccessible!'; + + // html2canvas.js is used to take screenshots + html2canvas(element, { + onrendered: function(canvas) { + callback(canvas.toDataURL()); + } + }); + }; + + // this event is fired when RTCMultiConnection detects that chrome extension + // for screen capturing is installed and available + connection.onScreenCapturingExtensionAvailable = function() { + log('It seems that screen capturing extension is installed and available on your system!'); + }; + + if (!isPluginRTC && DetectRTC.screen.onScreenCapturingExtensionAvailable) { + DetectRTC.screen.onScreenCapturingExtensionAvailable = function() { + connection.onScreenCapturingExtensionAvailable(); + }; + } + + connection.changeBandwidth = function(bandwidth) { + for (var peer in connection.peers) { + connection.peers[peer].changeBandwidth(bandwidth); + } + }; + + connection.convertToAudioStream = function(mediaStream) { + convertToAudioStream(mediaStream); + }; + + connection.onstatechange = function(state) { + log('on:state:change (' + state.userid + '):', state.name + ':', state.reason || ''); + }; + + connection.onfailed = function(event) { + if (!event.peer.numOfRetries) event.peer.numOfRetries = 0; + event.peer.numOfRetries++; + + error('ICE connectivity check is failed. Renegotiating peer connection.'); + event.peer.numOfRetries < 2 && event.peer.renegotiate(); + + if (event.peer.numOfRetries >= 2) event.peer.numOfRetries = 0; + }; + + connection.onconnected = function(event) { + // event.peer.addStream || event.peer.getConnectionStats + log('Peer connection has been established between you and', event.userid); + }; + + connection.ondisconnected = function(event) { + error('Peer connection seems has been disconnected between you and', event.userid); + + if (isEmpty(connection.channels)) return; + if (!connection.channels[event.userid]) return; + + // use WebRTC data channels to detect user's presence + connection.channels[event.userid].send({ + checkingPresence: true + }); + + // wait 5 seconds, if target peer didn't response, simply disconnect + setTimeout(function() { + // iceConnectionState == 'disconnected' occurred out of low-bandwidth + // or internet connectivity issues + if (connection.peers[event.userid].connected) { + delete connection.peers[event.userid].connected; + return; + } + + // to make sure this user's all remote streams are removed. + connection.streams.remove({ + remote: true, + userid: event.userid + }); + + connection.remove(event.userid); + }, 3000); + }; + + connection.onstreamid = function(event) { + // event.isScreen || event.isVideo || event.isAudio + log('got remote streamid', event.streamid, 'from', event.userid); + }; + + connection.stopMediaStream = function(mediaStream) { + if (!mediaStream) throw 'MediaStream argument is mandatory.'; + + if (connection.keepStreamsOpened) { + if (mediaStream.onended) mediaStream.onended(); + return; + } + + // remove stream from "localStreams" object + // when native-stop method invoked. + if (connection.localStreams[mediaStream.streamid]) { + delete connection.localStreams[mediaStream.streamid]; + } + + if (isFirefox) { + // Firefox don't yet support onended for any stream (remote/local) + if (mediaStream.onended) mediaStream.onended(); + } + + // Latest firefox does support mediaStream.getAudioTrack but doesn't support stop on MediaStreamTrack + var checkForMediaStreamTrackStop = Boolean( + (mediaStream.getAudioTracks || mediaStream.getVideoTracks) && ( + (mediaStream.getAudioTracks()[0] && !mediaStream.getAudioTracks()[0].stop) || + (mediaStream.getVideoTracks()[0] && !mediaStream.getVideoTracks()[0].stop) + ) + ); + + if (!mediaStream.getAudioTracks || checkForMediaStreamTrackStop) { + if (mediaStream.stop) { + mediaStream.stop(); + } + return; + } + + if (mediaStream.getAudioTracks().length && mediaStream.getAudioTracks()[0].stop) { + mediaStream.getAudioTracks().forEach(function(track) { + track.stop(); + }); + } + + if (mediaStream.getVideoTracks().length && mediaStream.getVideoTracks()[0].stop) { + mediaStream.getVideoTracks().forEach(function(track) { + track.stop(); + }); + } + }; + + connection.changeBandwidth = function(bandwidth) { + if (!bandwidth || isString(bandwidth) || isEmpty(bandwidth)) { + throw 'Invalid "bandwidth" arguments.'; + } + + forEach(connection.peers, function(peer) { + peer.peer.bandwidth = bandwidth; + }); + + connection.renegotiate(); + }; + + // www.RTCMultiConnection.org/docs/openSignalingChannel/ + // http://goo.gl/uvoIcZ + + // CUSTOM CODE + var href = window.location.href; + var hostPatt = new RegExp(window.location.host +"/[^/]*"); + var res = hostPatt.exec(href); + var protocol = window.location.protocol.replace("http","ws"); + + var signalingServerPath = protocol + "//" + res + "/webrtc"; + var SIGNALING_SERVER = signalingServerPath; //"ws://localhost:80/quantum/webrtc"; //"wss://localhost:80/quantum/webrtc"; --> ws for http and wss for https + + connection.openSignalingChannel = function(config) { + + + config.channel = config.channel || this.channel; + var websocket = new WebSocket(SIGNALING_SERVER); + websocket.channel = config.channel; + websocket.onopen = function() { + websocket.push(JSON.stringify({ + open: true, + channel: config.channel + })); + if (config.callback) + config.callback(websocket); + }; + websocket.onmessage = function(event) { + config.onmessage(JSON.parse(event.data)); + }; + websocket.push = websocket.send; + websocket.send = function(data) { + websocket.push(JSON.stringify({ + data: data, + channel: config.channel + })); + }; + + /* + // make sure firebase.js is loaded + if (!window.Firebase) { + return loadScript(connection.resources.firebase, function() { + connection.openSignalingChannel(config); + }); + } + + var channel = config.channel || connection.channel; + + if (connection.firebase) { + // for custom firebase instances + connection.resources.firebaseio = connection.resources.firebaseio.replace('//chat.', '//' + connection.firebase + '.'); + } + + var firebase = new Firebase(connection.resources.firebaseio + channel); + firebase.channel = channel; + firebase.on('child_added', function(data) { + config.onmessage(data.val()); + }); + + firebase.send = function(data) { + // a quick dirty workaround to make sure firebase + // shouldn't fail for NULL values. + for (var prop in data) { + if (isNull(data[prop]) || typeof data[prop] == 'function') { + data[prop] = false; + } + } + + this.push(data); + }; + + if (!connection.socket) + connection.socket = firebase; + + firebase.onDisconnect().remove(); + + setTimeout(function() { + config.callback(firebase); + }, 1); + + */ + // CUSTOM CODE // + + }; + + connection.Plugin = Plugin; + } + +})();
\ No newline at end of file |