From 1aaa0bd142e6a94568395cf8d021df72e4582c87 Mon Sep 17 00:00:00 2001 From: Feross Aboukhadijeh Date: Mon, 1 Jun 2020 20:31:41 -0700 Subject: [PATCH 01/30] Don't immediately renegotiate for initial streams Fixes https://github.com/feross/simple-peer/issues/670 --- index.js | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/index.js b/index.js index acbe4466..373297cc 100644 --- a/index.js +++ b/index.js @@ -146,7 +146,7 @@ class Peer extends stream.Duplex { if (this.streams) { this.streams.forEach(stream => { - this.addStream(stream) + this.addStream(stream, false) }) } this._pc.ontrack = event => { @@ -270,11 +270,11 @@ class Peer extends stream.Duplex { * Add a MediaStream to the connection. * @param {MediaStream} stream */ - addStream (stream) { + addStream (stream, triggerNegotiate = true) { this._debug('addStream()') stream.getTracks().forEach(track => { - this.addTrack(track, stream) + this.addTrack(track, stream, triggerNegotiate) }) } @@ -283,7 +283,7 @@ class Peer extends stream.Duplex { * @param {MediaStreamTrack} track * @param {MediaStream} stream */ - addTrack (track, stream) { + addTrack (track, stream, triggerNegotiate = true) { this._debug('addTrack()') var submap = this._senderMap.get(track) || new Map() // nested Maps map [track, stream] to sender @@ -292,7 +292,7 @@ class Peer extends stream.Duplex { sender = this._pc.addTrack(track, stream) submap.set(stream, sender) this._senderMap.set(track, submap) - this._needsNegotiation() + if (triggerNegotiate) this._needsNegotiation() } else if (sender.removed) { throw makeError('Track has been removed. You should enable/disable tracks that you want to re-add.', 'ERR_SENDER_REMOVED') } else { @@ -373,6 +373,9 @@ class Peer extends stream.Duplex { } negotiate () { + this._debug('negotiate') + this.emit('negotiate') + if (this.initiator) { if (this._isNegotiating) { this._queuedNegotiation = true @@ -882,6 +885,7 @@ class Peer extends stream.Duplex { if (this.destroyed) return if (this._pc.signalingState === 'stable' && !this._firstStable) { + this._firstStable = false this._isNegotiating = false // HACK: Firefox doesn't yet support removing tracks when signalingState !== 'stable' @@ -897,11 +901,7 @@ class Peer extends stream.Duplex { this._queuedNegotiation = false this._needsNegotiation() // negotiate again } - - this._debug('negotiate') - this.emit('negotiate') } - this._firstStable = false this._debug('signalingStateChange %s', this._pc.signalingState) this.emit('signalingStateChange', this._pc.signalingState) From 4099327ea25f86064b1582a59743520f97f3027d Mon Sep 17 00:00:00 2001 From: Feross Aboukhadijeh Date: Tue, 2 Jun 2020 16:12:35 -0700 Subject: [PATCH 02/30] add types to all 'signal' messages to aid debugging --- index.js | 3 +++ 1 file changed, 3 insertions(+) diff --git a/index.js b/index.js index 373297cc..3a518e19 100644 --- a/index.js +++ b/index.js @@ -261,6 +261,7 @@ class Peer extends stream.Duplex { } } else { this.emit('signal', { // request initiator to renegotiate + type: 'transceiverRequest', transceiverRequest: { kind, init } }) } @@ -393,6 +394,7 @@ class Peer extends stream.Duplex { } else { this._debug('requesting negotiation from initiator') this.emit('signal', { // request initiator to renegotiate + type: 'renegotiate', renegotiate: true }) } @@ -911,6 +913,7 @@ class Peer extends stream.Duplex { if (this.destroyed) return if (event.candidate && this.trickle) { this.emit('signal', { + type: 'candidate', candidate: { candidate: event.candidate.candidate, sdpMLineIndex: event.candidate.sdpMLineIndex, From d1f0233aae5f2b55302d3e4a163bd67ea43b5ddf Mon Sep 17 00:00:00 2001 From: Feross Aboukhadijeh Date: Tue, 2 Jun 2020 16:47:05 -0700 Subject: [PATCH 03/30] add debug log --- index.js | 1 + 1 file changed, 1 insertion(+) diff --git a/index.js b/index.js index 3a518e19..9d9a47f9 100644 --- a/index.js +++ b/index.js @@ -976,6 +976,7 @@ class Peer extends stream.Duplex { this._remoteStreams.push(eventStream) queueMicrotask(() => { + this._debug('on stream') this.emit('stream', eventStream) // ensure all tracks have been added }) }) From 0bc2facebb1c1df7b855a74eb2908bb8e40fef61 Mon Sep 17 00:00:00 2001 From: Mo Date: Sat, 25 Jul 2020 13:19:59 +0430 Subject: [PATCH 04/30] v1.0.0 --- package.json | 39 ++++++++++++++++----------------------- 1 file changed, 16 insertions(+), 23 deletions(-) diff --git a/package.json b/package.json index ed896674..4826ca23 100644 --- a/package.json +++ b/package.json @@ -1,14 +1,20 @@ { - "name": "simple-peer", + "name": "@there-so/simple-peer", "description": "Simple one-to-one WebRTC video/voice and data channels", - "version": "9.7.2", - "author": { - "name": "Feross Aboukhadijeh", - "email": "feross@feross.org", - "url": "https://feross.org" - }, + "authors": [ + { + "name": "Feross Aboukhadijeh", + "email": "feross@feross.org", + "url": "https://feross.org" + }, + { + "name": "Mohammad Rajabifard", + "email": "mo@there.so", + "url": "https://morajabi.com" + } + ], "bugs": { - "url": "https://github.com/feross/simple-peer/issues" + "url": "https://github.com/there-so/simple-peer/issues" }, "dependencies": { "debug": "^4.0.1", @@ -53,7 +59,7 @@ "main": "index.js", "repository": { "type": "git", - "url": "git://github.com/feross/simple-peer.git" + "url": "git://github.com/there-so/simple-peer.git" }, "scripts": { "build": "browserify -s SimplePeer -r . | minify > simplepeer.min.js", @@ -64,18 +70,5 @@ "test-node": "WRTC=wrtc tape test/*.js", "coverage": "nyc report --reporter=text-lcov | coveralls" }, - "funding": [ - { - "type": "github", - "url": "https://github.com/sponsors/feross" - }, - { - "type": "patreon", - "url": "https://www.patreon.com/feross" - }, - { - "type": "consulting", - "url": "https://feross.org/support" - } - ] + "version": "1.0.0" } From e7ab16ecc735d4d4eee59be437dfdbacef1fb0ed Mon Sep 17 00:00:00 2001 From: Mo Date: Sat, 25 Jul 2020 14:22:34 +0430 Subject: [PATCH 05/30] Add ice restart --- .vscode/settings.json | 2 + index.js | 32 +- package.json | 2 +- simplepeer.min.js | 4 +- yarn.lock | 6480 +++++++++++++++++++++++++++++++++++++++++ 5 files changed, 6515 insertions(+), 5 deletions(-) create mode 100644 .vscode/settings.json create mode 100644 yarn.lock diff --git a/.vscode/settings.json b/.vscode/settings.json new file mode 100644 index 00000000..7a73a41b --- /dev/null +++ b/.vscode/settings.json @@ -0,0 +1,2 @@ +{ +} \ No newline at end of file diff --git a/index.js b/index.js index 9d9a47f9..96f200de 100644 --- a/index.js +++ b/index.js @@ -8,6 +8,7 @@ var queueMicrotask = require('queue-microtask') // TODO: remove when Node 10 is var MAX_BUFFERED_AMOUNT = 64 * 1024 var ICECOMPLETE_TIMEOUT = 5 * 1000 var CHANNEL_CLOSING_TIMEOUT = 5 * 1000 +var ICEFAILURE_RECOVERY_TIMEOUT = 5 * 1000 // HACK: Filter trickle lines when trickle is disabled #354 function filterTrickle (sdp) { @@ -56,6 +57,7 @@ class Peer extends stream.Duplex { this.trickle = opts.trickle !== undefined ? opts.trickle : true this.allowHalfTrickle = opts.allowHalfTrickle !== undefined ? opts.allowHalfTrickle : false this.iceCompleteTimeout = opts.iceCompleteTimeout || ICECOMPLETE_TIMEOUT + this.iceFailureRecoveryTimeout = opts.iceFailureRecoveryTimeout || ICEFAILURE_RECOVERY_TIMEOUT this.destroyed = false this._connected = false @@ -86,6 +88,9 @@ class Peer extends stream.Duplex { this._channel = null this._pendingCandidates = [] + // Failed recovery + this._iceFailureRecoveryTimer = null // how long to wait for recovery from failed state + this._isNegotiating = this.negotiated ? false : !this.initiator // is this peer waiting for negotiation to complete? this._batchedNegotiation = false // batch synchronous negotiations this._queuedNegotiation = false // is there a queued negotiation request? @@ -682,8 +687,16 @@ class Peer extends stream.Duplex { this._pcReady = true this._maybeReady() } - if (iceConnectionState === 'failed') { - this.destroy(makeError('Ice connection failed.', 'ERR_ICE_CONNECTION_FAILURE')) + // Should we also include disconnected? + if (iceConnectionState === 'disconnected' || iceConnectionState === 'failed') { + if (this.initiator) { + // Restart + this._debug('ICE restart triggered.') + this._pc.restartIce() + this._needsNegotiation() + // Timeout after some time if we haven't connected yet + this._startIceFailureRecoveryTimeout() + } } if (iceConnectionState === 'closed') { this.destroy(makeError('Ice connection closed.', 'ERR_ICE_CONNECTION_CLOSED')) @@ -987,6 +1000,21 @@ class Peer extends stream.Duplex { args[0] = '[' + this._id + '] ' + args[0] debug.apply(null, args) } + + _startIceFailureRecoveryTimeout () { + if (this.destroyed) return + if (this._iceFailureRecoveryTimer) return + this._debug('started iceFailureRecovery timeout') + this._iceFailureRecoveryTimer = setTimeout(() => { + + let hasFailedToRecover = !this._iceComplete && !(iceConnectionState === 'connected' || iceConnectionState === 'completed') + + if (hasFailedToRecover) { + this._debug('iceFailureRecovery timeout completed') + this.destroy(makeError('Ice connection failed.', 'ERR_ICE_CONNECTION_FAILURE')) + } + }, this.iceFailureRecoveryTimeout) + } } Peer.WEBRTC_SUPPORT = !!getBrowserRTC() diff --git a/package.json b/package.json index 4826ca23..9d87a831 100644 --- a/package.json +++ b/package.json @@ -64,7 +64,7 @@ "scripts": { "build": "browserify -s SimplePeer -r . | minify > simplepeer.min.js", "size": "npm run build && cat simplepeer.min.js | gzip | wc -c", - 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i=e("debug")("simple-peer"),d=e("get-browser-rtc"),s=e("randombytes"),l=e("readable-stream"),c=e("queue-microtask"),u=65536;class p extends l.Duplex{constructor(e){if(e=Object.assign({allowHalfOpen:!1},e),super(e),this._id=s(4).toString("hex").slice(0,7),this._debug("new peer %o",e),this.channelName=e.initiator?e.channelName||s(20).toString("hex"):null,this.initiator=e.initiator||!1,this.channelConfig=e.channelConfig||p.channelConfig,this.negotiated=this.channelConfig.negotiated,this.config=Object.assign({},p.config,e.config),this.offerOptions=e.offerOptions||{},this.answerOptions=e.answerOptions||{},this.sdpTransform=e.sdpTransform||(e=>e),this.streams=e.streams||(e.stream?[e.stream]:[]),this.trickle=void 0===e.trickle||e.trickle,this.allowHalfTrickle=void 0!==e.allowHalfTrickle&&e.allowHalfTrickle,this.iceCompleteTimeout=e.iceCompleteTimeout||5000,this.destroyed=!1,this._connected=!1,this.remoteAddress=void 0,this.remoteFamily=void 0,this.remotePort=void 0,this.localAddress=void 0,this.localFamily=void 0,this.localPort=void 0,this._wrtc=e.wrtc&&"object"==typeof e.wrtc?e.wrtc:d(),!this._wrtc)if("undefined"==typeof window)throw a("No WebRTC support: Specify `opts.wrtc` option in this environment","ERR_WEBRTC_SUPPORT");else throw a("No WebRTC support: Not a supported browser","ERR_WEBRTC_SUPPORT");this._pcReady=!1,this._channelReady=!1,this._iceComplete=!1,this._iceCompleteTimer=null,this._channel=null,this._pendingCandidates=[],this._isNegotiating=!this.negotiated&&!this.initiator,this._batchedNegotiation=!1,this._queuedNegotiation=!1,this._sendersAwaitingStable=[],this._senderMap=new Map,this._firstStable=!0,this._closingInterval=null,this._remoteTracks=[],this._remoteStreams=[],this._chunk=null,this._cb=null,this._interval=null;try{this._pc=new this._wrtc.RTCPeerConnection(this.config)}catch(e){return void c(()=>this.destroy(a(e,"ERR_PC_CONSTRUCTOR")))}this._isReactNativeWebrtc="number"==typeof this._pc._peerConnectionId,this._pc.oniceconnectionstatechange=()=>{this._onIceStateChange()},this._pc.onicegatheringstatechange=()=>{this._onIceStateChange()},this._pc.onconnectionstatechange=()=>{this._onConnectionStateChange()},this._pc.onsignalingstatechange=()=>{this._onSignalingStateChange()},this._pc.onicecandidate=e=>{this._onIceCandidate(e)},this.initiator||this.negotiated?this._setupData({channel:this._pc.createDataChannel(this.channelName,this.channelConfig)}):this._pc.ondatachannel=e=>{this._setupData(e)},this.streams&&this.streams.forEach(e=>{this.addStream(e)}),this._pc.ontrack=e=>{this._onTrack(e)},this.initiator&&this._needsNegotiation(),this._onFinishBound=()=>{this._onFinish()},this.once("finish",this._onFinishBound)}get bufferSize(){return this._channel&&this._channel.bufferedAmount||0}get connected(){return this._connected&&"open"===this._channel.readyState}address(){return{port:this.localPort,family:this.localFamily,address:this.localAddress}}signal(e){if(this.destroyed)throw a("cannot signal after peer is destroyed","ERR_SIGNALING");if("string"==typeof e)try{e=JSON.parse(e)}catch(t){e={}}this._debug("signal()"),e.renegotiate&&this.initiator&&(this._debug("got request to renegotiate"),this._needsNegotiation()),e.transceiverRequest&&this.initiator&&(this._debug("got request for transceiver"),this.addTransceiver(e.transceiverRequest.kind,e.transceiverRequest.init)),e.candidate&&(this._pc.remoteDescription&&this._pc.remoteDescription.type?this._addIceCandidate(e.candidate):this._pendingCandidates.push(e.candidate)),e.sdp&&this._pc.setRemoteDescription(new this._wrtc.RTCSessionDescription(e)).then(()=>{this.destroyed||(this._pendingCandidates.forEach(e=>{this._addIceCandidate(e)}),this._pendingCandidates=[],"offer"===this._pc.remoteDescription.type&&this._createAnswer())}).catch(e=>{this.destroy(a(e,"ERR_SET_REMOTE_DESCRIPTION"))}),e.sdp||e.candidate||e.renegotiate||e.transceiverRequest||this.destroy(a("signal() called with invalid signal data","ERR_SIGNALING"))}_addIceCandidate(e){var t=new this._wrtc.RTCIceCandidate(e);this._pc.addIceCandidate(t).catch(e=>{!t.address||t.address.endsWith(".local")?o("Ignoring unsupported ICE candidate."):this.destroy(a(e,"ERR_ADD_ICE_CANDIDATE"))})}send(e){this._channel.send(e)}addTransceiver(e,t){if(this._debug("addTransceiver()"),this.initiator)try{this._pc.addTransceiver(e,t),this._needsNegotiation()}catch(e){this.destroy(a(e,"ERR_ADD_TRANSCEIVER"))}else this.emit("signal",{transceiverRequest:{kind:e,init:t}})}addStream(e){this._debug("addStream()"),e.getTracks().forEach(t=>{this.addTrack(t,e)})}addTrack(e,t){this._debug("addTrack()");var n=this._senderMap.get(e)||new Map,r=n.get(t);if(!r)r=this._pc.addTrack(e,t),n.set(t,r),this._senderMap.set(e,n),this._needsNegotiation();else if(r.removed)throw a("Track has been removed. You should enable/disable tracks that you want to re-add.","ERR_SENDER_REMOVED");else throw a("Track has already been added to that stream.","ERR_SENDER_ALREADY_ADDED")}replaceTrack(e,t,n){this._debug("replaceTrack()");var r=this._senderMap.get(e),o=r?r.get(n):null;if(!o)throw a("Cannot replace track that was never added.","ERR_TRACK_NOT_ADDED");t&&this._senderMap.set(t,r),null==o.replaceTrack?this.destroy(a("replaceTrack is not supported in this browser","ERR_UNSUPPORTED_REPLACETRACK")):o.replaceTrack(t)}removeTrack(e,t){this._debug("removeSender()");var n=this._senderMap.get(e),r=n?n.get(t):null;if(!r)throw a("Cannot remove track that was never added.","ERR_TRACK_NOT_ADDED");try{r.removed=!0,this._pc.removeTrack(r)}catch(e){"NS_ERROR_UNEXPECTED"===e.name?this._sendersAwaitingStable.push(r):this.destroy(a(e,"ERR_REMOVE_TRACK"))}this._needsNegotiation()}removeStream(e){this._debug("removeSenders()"),e.getTracks().forEach(t=>{this.removeTrack(t,e)})}_needsNegotiation(){this._debug("_needsNegotiation"),this._batchedNegotiation||(this._batchedNegotiation=!0,c(()=>{this._batchedNegotiation=!1,this._debug("starting batched negotiation"),this.negotiate()}))}negotiate(){this.initiator?this._isNegotiating?(this._queuedNegotiation=!0,this._debug("already negotiating, queueing")):(this._debug("start negotiation"),setTimeout(()=>{this._createOffer()},0)):this._isNegotiating?(this._queuedNegotiation=!0,this._debug("already negotiating, queueing")):(this._debug("requesting negotiation from initiator"),this.emit("signal",{renegotiate:!0})),this._isNegotiating=!0}destroy(e){this._destroy(e,()=>{})}_destroy(e,t){if(!this.destroyed){if(this._debug("destroy (error: %s)",e&&(e.message||e)),this.readable=this.writable=!1,this._readableState.ended||this.push(null),this._writableState.finished||this.end(),this.destroyed=!0,this._connected=!1,this._pcReady=!1,this._channelReady=!1,this._remoteTracks=null,this._remoteStreams=null,this._senderMap=null,clearInterval(this._closingInterval),this._closingInterval=null,clearInterval(this._interval),this._interval=null,this._chunk=null,this._cb=null,this._onFinishBound&&this.removeListener("finish",this._onFinishBound),this._onFinishBound=null,this._channel){try{this._channel.close()}catch(e){}this._channel.onmessage=null,this._channel.onopen=null,this._channel.onclose=null,this._channel.onerror=null}if(this._pc){try{this._pc.close()}catch(e){}this._pc.oniceconnectionstatechange=null,this._pc.onicegatheringstatechange=null,this._pc.onsignalingstatechange=null,this._pc.onicecandidate=null,this._pc.ontrack=null,this._pc.ondatachannel=null}this._pc=null,this._channel=null,e&&this.emit("error",e),this.emit("close"),t()}}_setupData(e){if(!e.channel)return this.destroy(a("Data channel event is missing `channel` property","ERR_DATA_CHANNEL"));this._channel=e.channel,this._channel.binaryType="arraybuffer","number"==typeof this._channel.bufferedAmountLowThreshold&&(this._channel.bufferedAmountLowThreshold=u),this.channelName=this._channel.label,this._channel.onmessage=e=>{this._onChannelMessage(e)},this._channel.onbufferedamountlow=()=>{this._onChannelBufferedAmountLow()},this._channel.onopen=()=>{this._onChannelOpen()},this._channel.onclose=()=>{this._onChannelClose()},this._channel.onerror=e=>{this.destroy(a(e,"ERR_DATA_CHANNEL"))};var t=!1;this._closingInterval=setInterval(()=>{this._channel&&"closing"===this._channel.readyState?(t&&this._onChannelClose(),t=!0):t=!1},5000)}_read(){}_write(e,t,n){if(this.destroyed)return n(a("cannot write after peer is destroyed","ERR_DATA_CHANNEL"));if(this._connected){try{this.send(e)}catch(e){return this.destroy(a(e,"ERR_DATA_CHANNEL"))}this._channel.bufferedAmount>u?(this._debug("start backpressure: bufferedAmount %d",this._channel.bufferedAmount),this._cb=n):n(null)}else this._debug("write before connect"),this._chunk=e,this._cb=n}_onFinish(){if(!this.destroyed){const e=()=>{setTimeout(()=>this.destroy(),1e3)};this._connected?e():this.once("connect",e)}}_startIceCompleteTimeout(){this.destroyed||this._iceCompleteTimer||(this._debug("started iceComplete timeout"),this._iceCompleteTimer=setTimeout(()=>{this._iceComplete||(this._iceComplete=!0,this._debug("iceComplete timeout completed"),this.emit("iceTimeout"),this.emit("_iceComplete"))},this.iceCompleteTimeout))}_createOffer(){this.destroyed||this._pc.createOffer(this.offerOptions).then(e=>{if(this.destroyed)return;this.trickle||this.allowHalfTrickle||(e.sdp=r(e.sdp)),e.sdp=this.sdpTransform(e.sdp);const t=()=>{if(!this.destroyed){var t=this._pc.localDescription||e;this._debug("signal"),this.emit("signal",{type:t.type,sdp:t.sdp})}};this._pc.setLocalDescription(e).then(()=>{this._debug("createOffer success"),this.destroyed||(this.trickle||this._iceComplete?t():this.once("_iceComplete",t))}).catch(e=>{this.destroy(a(e,"ERR_SET_LOCAL_DESCRIPTION"))})}).catch(e=>{this.destroy(a(e,"ERR_CREATE_OFFER"))})}_requestMissingTransceivers(){this._pc.getTransceivers&&this._pc.getTransceivers().forEach(e=>{e.mid||!e.sender.track||e.requested||(e.requested=!0,this.addTransceiver(e.sender.track.kind))})}_createAnswer(){this.destroyed||this._pc.createAnswer(this.answerOptions).then(e=>{if(this.destroyed)return;this.trickle||this.allowHalfTrickle||(e.sdp=r(e.sdp)),e.sdp=this.sdpTransform(e.sdp);const t=()=>{if(!this.destroyed){var t=this._pc.localDescription||e;this._debug("signal"),this.emit("signal",{type:t.type,sdp:t.sdp}),this.initiator||this._requestMissingTransceivers()}};this._pc.setLocalDescription(e).then(()=>{this.destroyed||(this.trickle||this._iceComplete?t():this.once("_iceComplete",t))}).catch(e=>{this.destroy(a(e,"ERR_SET_LOCAL_DESCRIPTION"))})}).catch(e=>{this.destroy(a(e,"ERR_CREATE_ANSWER"))})}_onConnectionStateChange(){this.destroyed||"failed"===this._pc.connectionState&&this.destroy(a("Connection failed.","ERR_CONNECTION_FAILURE"))}_onIceStateChange(){if(!this.destroyed){var e=this._pc.iceConnectionState,t=this._pc.iceGatheringState;this._debug("iceStateChange (connection: %s) (gathering: %s)",e,t),this.emit("iceStateChange",e,t),("connected"===e||"completed"===e)&&(this._pcReady=!0,this._maybeReady()),"failed"===e&&this.destroy(a("Ice connection failed.","ERR_ICE_CONNECTION_FAILURE")),"closed"===e&&this.destroy(a("Ice connection closed.","ERR_ICE_CONNECTION_CLOSED"))}}getStats(e){const t=e=>("[object Array]"===Object.prototype.toString.call(e.values)&&e.values.forEach(t=>{Object.assign(e,t)}),e);0===this._pc.getStats.length||this._isReactNativeWebrtc?this._pc.getStats().then(n=>{var r=[];n.forEach(e=>{r.push(t(e))}),e(null,r)},t=>e(t)):0{if(!this.destroyed){var r=[];n.result().forEach(e=>{var n={};e.names().forEach(t=>{n[t]=e.stat(t)}),n.id=e.id,n.type=e.type,n.timestamp=e.timestamp,r.push(t(n))}),e(null,r)}},t=>e(t)):e(null,[])}_maybeReady(){if(this._debug("maybeReady pc %s channel %s",this._pcReady,this._channelReady),this._connected||this._connecting||!this._pcReady||!this._channelReady)return;this._connecting=!0;const e=()=>{this.destroyed||this.getStats((t,n)=>{if(this.destroyed)return;t&&(n=[]);var r={},o={},i={},d=!1;n.forEach(e=>{("remotecandidate"===e.type||"remote-candidate"===e.type)&&(r[e.id]=e),("localcandidate"===e.type||"local-candidate"===e.type)&&(o[e.id]=e),("candidatepair"===e.type||"candidate-pair"===e.type)&&(i[e.id]=e)});const s=e=>{d=!0;var t=o[e.localCandidateId];t&&(t.ip||t.address)?(this.localAddress=t.ip||t.address,this.localPort=+t.port):t&&t.ipAddress?(this.localAddress=t.ipAddress,this.localPort=+t.portNumber):"string"==typeof e.googLocalAddress&&(t=e.googLocalAddress.split(":"),this.localAddress=t[0],this.localPort=+t[1]),this.localAddress&&(this.localFamily=this.localAddress.includes(":")?"IPv6":"IPv4");var n=r[e.remoteCandidateId];n&&(n.ip||n.address)?(this.remoteAddress=n.ip||n.address,this.remotePort=+n.port):n&&n.ipAddress?(this.remoteAddress=n.ipAddress,this.remotePort=+n.portNumber):"string"==typeof e.googRemoteAddress&&(n=e.googRemoteAddress.split(":"),this.remoteAddress=n[0],this.remotePort=+n[1]),this.remoteAddress&&(this.remoteFamily=this.remoteAddress.includes(":")?"IPv6":"IPv4"),this._debug("connect local: %s:%s remote: 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You should enable/disable tracks that you want to re-add.","ERR_SENDER_REMOVED");else throw a("Track has already been added to that stream.","ERR_SENDER_ALREADY_ADDED")}replaceTrack(e,t,n){this._debug("replaceTrack()");var r=this._senderMap.get(e),o=r?r.get(n):null;if(!o)throw a("Cannot replace track that was never added.","ERR_TRACK_NOT_ADDED");t&&this._senderMap.set(t,r),null==o.replaceTrack?this.destroy(a("replaceTrack is not supported in this browser","ERR_UNSUPPORTED_REPLACETRACK")):o.replaceTrack(t)}removeTrack(e,t){this._debug("removeSender()");var n=this._senderMap.get(e),r=n?n.get(t):null;if(!r)throw a("Cannot remove track that was never 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+zip-stream@^1.2.0: + version "1.2.0" + resolved "https://registry.yarnpkg.com/zip-stream/-/zip-stream-1.2.0.tgz#a8bc45f4c1b49699c6b90198baacaacdbcd4ba04" + integrity sha1-qLxF9MG0lpnGuQGYuqyqzbzUugQ= + dependencies: + archiver-utils "^1.3.0" + compress-commons "^1.2.0" + lodash "^4.8.0" + readable-stream "^2.0.0" + +zip-stream@^2.1.2: + version "2.1.3" + resolved "https://registry.yarnpkg.com/zip-stream/-/zip-stream-2.1.3.tgz#26cc4bdb93641a8590dd07112e1f77af1758865b" + integrity sha512-EkXc2JGcKhO5N5aZ7TmuNo45budRaFGHOmz24wtJR7znbNqDPmdZtUauKX6et8KAVseAMBOyWJqEpXcHTBsh7Q== + dependencies: + archiver-utils "^2.1.0" + compress-commons "^2.1.1" + readable-stream "^3.4.0" From d48e57a058b42a878c22b68eafbf011e43ae015c Mon Sep 17 00:00:00 2001 From: Mo Date: Sun, 26 Jul 2020 11:35:51 +0430 Subject: [PATCH 06/30] Add a flag to prevent restarting restart --- index.js | 8 ++++++-- package.json | 2 +- 2 files changed, 7 insertions(+), 3 deletions(-) diff --git a/index.js b/index.js index 96f200de..e21b804a 100644 --- a/index.js +++ b/index.js @@ -92,6 +92,7 @@ class Peer extends stream.Duplex { this._iceFailureRecoveryTimer = null // how long to wait for recovery from failed state this._isNegotiating = this.negotiated ? false : !this.initiator // is this peer waiting for negotiation to complete? + this._isRestartingIce = false // turned true while restarting and false when connected this._batchedNegotiation = false // batch synchronous negotiations this._queuedNegotiation = false // is there a queued negotiation request? this._sendersAwaitingStable = [] @@ -685,14 +686,18 @@ class Peer extends stream.Duplex { if (iceConnectionState === 'connected' || iceConnectionState === 'completed') { this._pcReady = true + this._isRestartingIce = false this._maybeReady() } // Should we also include disconnected? if (iceConnectionState === 'disconnected' || iceConnectionState === 'failed') { - if (this.initiator) { + if (this.initiator && !this._isRestartingIce) { // Restart + this._isNegotiating = false + this._isRestartingIce = true this._debug('ICE restart triggered.') this._pc.restartIce() + // Terminate current negotiating this._needsNegotiation() // Timeout after some time if we haven't connected yet this._startIceFailureRecoveryTimeout() @@ -1006,7 +1011,6 @@ class Peer extends stream.Duplex { if (this._iceFailureRecoveryTimer) return this._debug('started iceFailureRecovery timeout') this._iceFailureRecoveryTimer = setTimeout(() => { - let hasFailedToRecover = !this._iceComplete && !(iceConnectionState === 'connected' || iceConnectionState === 'completed') if (hasFailedToRecover) { diff --git a/package.json b/package.json index 9d87a831..39433381 100644 --- a/package.json +++ b/package.json @@ -70,5 +70,5 @@ "test-node": "WRTC=wrtc tape test/*.js", "coverage": "nyc report --reporter=text-lcov | coveralls" }, - "version": "1.0.0" + "version": "1.1.0" } From ffc31f05d146f2dacce090afdfdc74057726232a Mon Sep 17 00:00:00 2001 From: Mo Date: Sun, 26 Jul 2020 11:36:02 +0430 Subject: [PATCH 07/30] v1.1.1 --- package.json | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/package.json b/package.json index 39433381..8c93cd45 100644 --- a/package.json +++ b/package.json @@ -70,5 +70,5 @@ "test-node": "WRTC=wrtc tape test/*.js", "coverage": "nyc report --reporter=text-lcov | coveralls" }, - "version": "1.1.0" + "version": "1.1.1" } From 487ea36cd0b5d3425d0d71003ef4c5b6bece6b85 Mon Sep 17 00:00:00 2001 From: Mo Date: Sun, 26 Jul 2020 11:37:01 +0430 Subject: [PATCH 08/30] Add build --- simplepeer.min.js | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/simplepeer.min.js b/simplepeer.min.js index de6f1daa..f4b7d4bc 100644 --- a/simplepeer.min.js +++ b/simplepeer.min.js @@ -3,4 +3,4 @@ * * @author Feross Aboukhadijeh * @license MIT - */'use strict';var z=String.fromCharCode,K=Math.min;function a(e){if(2147483647e)throw new RangeError("The value \""+e+"\" is invalid for option \"size\"")}function d(e,t,n){return 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this._connected&&"open"===this._channel.readyState}address(){return{port:this.localPort,family:this.localFamily,address:this.localAddress}}signal(e){if(this.destroyed)throw a("cannot signal after peer is destroyed","ERR_SIGNALING");if("string"==typeof e)try{e=JSON.parse(e)}catch(t){e={}}this._debug("signal()"),e.renegotiate&&this.initiator&&(this._debug("got request to renegotiate"),this._needsNegotiation()),e.transceiverRequest&&this.initiator&&(this._debug("got request for transceiver"),this.addTransceiver(e.transceiverRequest.kind,e.transceiverRequest.init)),e.candidate&&(this._pc.remoteDescription&&this._pc.remoteDescription.type?this._addIceCandidate(e.candidate):this._pendingCandidates.push(e.candidate)),e.sdp&&this._pc.setRemoteDescription(new 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added.","ERR_TRACK_NOT_ADDED");try{r.removed=!0,this._pc.removeTrack(r)}catch(e){"NS_ERROR_UNEXPECTED"===e.name?this._sendersAwaitingStable.push(r):this.destroy(a(e,"ERR_REMOVE_TRACK"))}this._needsNegotiation()}removeStream(e){this._debug("removeSenders()"),e.getTracks().forEach(t=>{this.removeTrack(t,e)})}_needsNegotiation(){this._debug("_needsNegotiation"),this._batchedNegotiation||(this._batchedNegotiation=!0,c(()=>{this._batchedNegotiation=!1,this._debug("starting batched negotiation"),this.negotiate()}))}negotiate(){this._debug("negotiate"),this.emit("negotiate"),this.initiator?this._isNegotiating?(this._queuedNegotiation=!0,this._debug("already negotiating, queueing")):(this._debug("start negotiation"),setTimeout(()=>{this._createOffer()},0)):this._isNegotiating?(this._queuedNegotiation=!0,this._debug("already negotiating, queueing")):(this._debug("requesting negotiation from 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i=e("debug")("simple-peer"),d=e("get-browser-rtc"),s=e("randombytes"),l=e("readable-stream"),c=e("queue-microtask"),u=65536;class p extends l.Duplex{constructor(e){if(e=Object.assign({allowHalfOpen:!1},e),super(e),this._id=s(4).toString("hex").slice(0,7),this._debug("new peer %o",e),this.channelName=e.initiator?e.channelName||s(20).toString("hex"):null,this.initiator=e.initiator||!1,this.channelConfig=e.channelConfig||p.channelConfig,this.negotiated=this.channelConfig.negotiated,this.config=Object.assign({},p.config,e.config),this.offerOptions=e.offerOptions||{},this.answerOptions=e.answerOptions||{},this.sdpTransform=e.sdpTransform||(e=>e),this.streams=e.streams||(e.stream?[e.stream]:[]),this.trickle=void 0===e.trickle||e.trickle,this.allowHalfTrickle=void 0!==e.allowHalfTrickle&&e.allowHalfTrickle,this.iceCompleteTimeout=e.iceCompleteTimeout||5000,this.iceFailureRecoveryTimeout=e.iceFailureRecoveryTimeout||5000,this.destroyed=!1,this._connected=!1,this.remoteAddress=void 0,this.remoteFamily=void 0,this.remotePort=void 0,this.localAddress=void 0,this.localFamily=void 0,this.localPort=void 0,this._wrtc=e.wrtc&&"object"==typeof e.wrtc?e.wrtc:d(),!this._wrtc)if("undefined"==typeof window)throw a("No WebRTC support: Specify `opts.wrtc` option in this environment","ERR_WEBRTC_SUPPORT");else throw a("No WebRTC support: Not a supported browser","ERR_WEBRTC_SUPPORT");this._pcReady=!1,this._channelReady=!1,this._iceComplete=!1,this._iceCompleteTimer=null,this._channel=null,this._pendingCandidates=[],this._iceFailureRecoveryTimer=null,this._isNegotiating=!this.negotiated&&!this.initiator,this._isRestartingIce=!1,this._batchedNegotiation=!1,this._queuedNegotiation=!1,this._sendersAwaitingStable=[],this._senderMap=new Map,this._firstStable=!0,this._closingInterval=null,this._remoteTracks=[],this._remoteStreams=[],this._chunk=null,this._cb=null,this._interval=null;try{this._pc=new this._wrtc.RTCPeerConnection(this.config)}catch(e){return void c(()=>this.destroy(a(e,"ERR_PC_CONSTRUCTOR")))}this._isReactNativeWebrtc="number"==typeof this._pc._peerConnectionId,this._pc.oniceconnectionstatechange=()=>{this._onIceStateChange()},this._pc.onicegatheringstatechange=()=>{this._onIceStateChange()},this._pc.onconnectionstatechange=()=>{this._onConnectionStateChange()},this._pc.onsignalingstatechange=()=>{this._onSignalingStateChange()},this._pc.onicecandidate=e=>{this._onIceCandidate(e)},this.initiator||this.negotiated?this._setupData({channel:this._pc.createDataChannel(this.channelName,this.channelConfig)}):this._pc.ondatachannel=e=>{this._setupData(e)},this.streams&&this.streams.forEach(e=>{this.addStream(e,!1)}),this._pc.ontrack=e=>{this._onTrack(e)},this.initiator&&this._needsNegotiation(),this._onFinishBound=()=>{this._onFinish()},this.once("finish",this._onFinishBound)}get bufferSize(){return this._channel&&this._channel.bufferedAmount||0}get connected(){return this._connected&&"open"===this._channel.readyState}address(){return{port:this.localPort,family:this.localFamily,address:this.localAddress}}signal(e){if(this.destroyed)throw a("cannot signal after peer is destroyed","ERR_SIGNALING");if("string"==typeof e)try{e=JSON.parse(e)}catch(t){e={}}this._debug("signal()"),e.renegotiate&&this.initiator&&(this._debug("got request to renegotiate"),this._needsNegotiation()),e.transceiverRequest&&this.initiator&&(this._debug("got request for transceiver"),this.addTransceiver(e.transceiverRequest.kind,e.transceiverRequest.init)),e.candidate&&(this._pc.remoteDescription&&this._pc.remoteDescription.type?this._addIceCandidate(e.candidate):this._pendingCandidates.push(e.candidate)),e.sdp&&this._pc.setRemoteDescription(new this._wrtc.RTCSessionDescription(e)).then(()=>{this.destroyed||(this._pendingCandidates.forEach(e=>{this._addIceCandidate(e)}),this._pendingCandidates=[],"offer"===this._pc.remoteDescription.type&&this._createAnswer())}).catch(e=>{this.destroy(a(e,"ERR_SET_REMOTE_DESCRIPTION"))}),e.sdp||e.candidate||e.renegotiate||e.transceiverRequest||this.destroy(a("signal() called with invalid signal data","ERR_SIGNALING"))}_addIceCandidate(e){var t=new this._wrtc.RTCIceCandidate(e);this._pc.addIceCandidate(t).catch(e=>{!t.address||t.address.endsWith(".local")?o("Ignoring unsupported ICE candidate."):this.destroy(a(e,"ERR_ADD_ICE_CANDIDATE"))})}send(e){this._channel.send(e)}addTransceiver(e,t){if(this._debug("addTransceiver()"),this.initiator)try{this._pc.addTransceiver(e,t),this._needsNegotiation()}catch(e){this.destroy(a(e,"ERR_ADD_TRANSCEIVER"))}else this.emit("signal",{type:"transceiverRequest",transceiverRequest:{kind:e,init:t}})}addStream(e,t=!0){this._debug("addStream()"),e.getTracks().forEach(n=>{this.addTrack(n,e,t)})}addTrack(e,t,n=!0){this._debug("addTrack()");var r=this._senderMap.get(e)||new Map,o=r.get(t);if(!o)o=this._pc.addTrack(e,t),r.set(t,o),this._senderMap.set(e,r),n&&this._needsNegotiation();else if(o.removed)throw a("Track has been removed. You should enable/disable tracks that you want to re-add.","ERR_SENDER_REMOVED");else throw a("Track has already been added to that stream.","ERR_SENDER_ALREADY_ADDED")}replaceTrack(e,t,n){this._debug("replaceTrack()");var r=this._senderMap.get(e),o=r?r.get(n):null;if(!o)throw a("Cannot replace track that was never added.","ERR_TRACK_NOT_ADDED");t&&this._senderMap.set(t,r),null==o.replaceTrack?this.destroy(a("replaceTrack is not supported in this browser","ERR_UNSUPPORTED_REPLACETRACK")):o.replaceTrack(t)}removeTrack(e,t){this._debug("removeSender()");var n=this._senderMap.get(e),r=n?n.get(t):null;if(!r)throw a("Cannot remove track that was never added.","ERR_TRACK_NOT_ADDED");try{r.removed=!0,this._pc.removeTrack(r)}catch(e){"NS_ERROR_UNEXPECTED"===e.name?this._sendersAwaitingStable.push(r):this.destroy(a(e,"ERR_REMOVE_TRACK"))}this._needsNegotiation()}removeStream(e){this._debug("removeSenders()"),e.getTracks().forEach(t=>{this.removeTrack(t,e)})}_needsNegotiation(){this._debug("_needsNegotiation"),this._batchedNegotiation||(this._batchedNegotiation=!0,c(()=>{this._batchedNegotiation=!1,this._debug("starting batched negotiation"),this.negotiate()}))}negotiate(){this._debug("negotiate"),this.emit("negotiate"),this.initiator?this._isNegotiating?(this._queuedNegotiation=!0,this._debug("already negotiating, queueing")):(this._debug("start negotiation"),setTimeout(()=>{this._createOffer()},0)):this._isNegotiating?(this._queuedNegotiation=!0,this._debug("already negotiating, queueing")):(this._debug("requesting negotiation from initiator"),this.emit("signal",{type:"renegotiate",renegotiate:!0})),this._isNegotiating=!0}destroy(e){this._destroy(e,()=>{})}_destroy(e,t){if(!this.destroyed){if(this._debug("destroy (error: %s)",e&&(e.message||e)),this.readable=this.writable=!1,this._readableState.ended||this.push(null),this._writableState.finished||this.end(),this.destroyed=!0,this._connected=!1,this._pcReady=!1,this._channelReady=!1,this._remoteTracks=null,this._remoteStreams=null,this._senderMap=null,clearInterval(this._closingInterval),this._closingInterval=null,clearInterval(this._interval),this._interval=null,this._chunk=null,this._cb=null,this._onFinishBound&&this.removeListener("finish",this._onFinishBound),this._onFinishBound=null,this._channel){try{this._channel.close()}catch(e){}this._channel.onmessage=null,this._channel.onopen=null,this._channel.onclose=null,this._channel.onerror=null}if(this._pc){try{this._pc.close()}catch(e){}this._pc.oniceconnectionstatechange=null,this._pc.onicegatheringstatechange=null,this._pc.onsignalingstatechange=null,this._pc.onicecandidate=null,this._pc.ontrack=null,this._pc.ondatachannel=null}this._pc=null,this._channel=null,e&&this.emit("error",e),this.emit("close"),t()}}_setupData(e){if(!e.channel)return this.destroy(a("Data channel event is missing `channel` property","ERR_DATA_CHANNEL"));this._channel=e.channel,this._channel.binaryType="arraybuffer","number"==typeof this._channel.bufferedAmountLowThreshold&&(this._channel.bufferedAmountLowThreshold=u),this.channelName=this._channel.label,this._channel.onmessage=e=>{this._onChannelMessage(e)},this._channel.onbufferedamountlow=()=>{this._onChannelBufferedAmountLow()},this._channel.onopen=()=>{this._onChannelOpen()},this._channel.onclose=()=>{this._onChannelClose()},this._channel.onerror=e=>{this.destroy(a(e,"ERR_DATA_CHANNEL"))};var t=!1;this._closingInterval=setInterval(()=>{this._channel&&"closing"===this._channel.readyState?(t&&this._onChannelClose(),t=!0):t=!1},5000)}_read(){}_write(e,t,n){if(this.destroyed)return n(a("cannot write after peer is destroyed","ERR_DATA_CHANNEL"));if(this._connected){try{this.send(e)}catch(e){return this.destroy(a(e,"ERR_DATA_CHANNEL"))}this._channel.bufferedAmount>u?(this._debug("start backpressure: bufferedAmount %d",this._channel.bufferedAmount),this._cb=n):n(null)}else this._debug("write before connect"),this._chunk=e,this._cb=n}_onFinish(){if(!this.destroyed){const e=()=>{setTimeout(()=>this.destroy(),1e3)};this._connected?e():this.once("connect",e)}}_startIceCompleteTimeout(){this.destroyed||this._iceCompleteTimer||(this._debug("started iceComplete timeout"),this._iceCompleteTimer=setTimeout(()=>{this._iceComplete||(this._iceComplete=!0,this._debug("iceComplete timeout completed"),this.emit("iceTimeout"),this.emit("_iceComplete"))},this.iceCompleteTimeout))}_createOffer(){this.destroyed||this._pc.createOffer(this.offerOptions).then(e=>{if(this.destroyed)return;this.trickle||this.allowHalfTrickle||(e.sdp=r(e.sdp)),e.sdp=this.sdpTransform(e.sdp);const t=()=>{if(!this.destroyed){var t=this._pc.localDescription||e;this._debug("signal"),this.emit("signal",{type:t.type,sdp:t.sdp})}};this._pc.setLocalDescription(e).then(()=>{this._debug("createOffer success"),this.destroyed||(this.trickle||this._iceComplete?t():this.once("_iceComplete",t))}).catch(e=>{this.destroy(a(e,"ERR_SET_LOCAL_DESCRIPTION"))})}).catch(e=>{this.destroy(a(e,"ERR_CREATE_OFFER"))})}_requestMissingTransceivers(){this._pc.getTransceivers&&this._pc.getTransceivers().forEach(e=>{e.mid||!e.sender.track||e.requested||(e.requested=!0,this.addTransceiver(e.sender.track.kind))})}_createAnswer(){this.destroyed||this._pc.createAnswer(this.answerOptions).then(e=>{if(this.destroyed)return;this.trickle||this.allowHalfTrickle||(e.sdp=r(e.sdp)),e.sdp=this.sdpTransform(e.sdp);const t=()=>{if(!this.destroyed){var t=this._pc.localDescription||e;this._debug("signal"),this.emit("signal",{type:t.type,sdp:t.sdp}),this.initiator||this._requestMissingTransceivers()}};this._pc.setLocalDescription(e).then(()=>{this.destroyed||(this.trickle||this._iceComplete?t():this.once("_iceComplete",t))}).catch(e=>{this.destroy(a(e,"ERR_SET_LOCAL_DESCRIPTION"))})}).catch(e=>{this.destroy(a(e,"ERR_CREATE_ANSWER"))})}_onConnectionStateChange(){this.destroyed||"failed"===this._pc.connectionState&&this.destroy(a("Connection failed.","ERR_CONNECTION_FAILURE"))}_onIceStateChange(){if(!this.destroyed){var e=this._pc.iceConnectionState,t=this._pc.iceGatheringState;this._debug("iceStateChange (connection: %s) (gathering: %s)",e,t),this.emit("iceStateChange",e,t),("connected"===e||"completed"===e)&&(this._pcReady=!0,this._isRestartingIce=!1,this._maybeReady()),("disconnected"===e||"failed"===e)&&this.initiator&&!this._isRestartingIce&&(this._isNegotiating=!1,this._isRestartingIce=!0,this._debug("ICE restart triggered."),this._pc.restartIce(),this._needsNegotiation(),this._startIceFailureRecoveryTimeout()),"closed"===e&&this.destroy(a("Ice connection closed.","ERR_ICE_CONNECTION_CLOSED"))}}getStats(e){const t=e=>("[object Array]"===Object.prototype.toString.call(e.values)&&e.values.forEach(t=>{Object.assign(e,t)}),e);0===this._pc.getStats.length||this._isReactNativeWebrtc?this._pc.getStats().then(n=>{var r=[];n.forEach(e=>{r.push(t(e))}),e(null,r)},t=>e(t)):0{if(!this.destroyed){var r=[];n.result().forEach(e=>{var n={};e.names().forEach(t=>{n[t]=e.stat(t)}),n.id=e.id,n.type=e.type,n.timestamp=e.timestamp,r.push(t(n))}),e(null,r)}},t=>e(t)):e(null,[])}_maybeReady(){if(this._debug("maybeReady pc %s channel %s",this._pcReady,this._channelReady),this._connected||this._connecting||!this._pcReady||!this._channelReady)return;this._connecting=!0;const e=()=>{this.destroyed||this.getStats((t,n)=>{if(this.destroyed)return;t&&(n=[]);var r={},o={},i={},d=!1;n.forEach(e=>{("remotecandidate"===e.type||"remote-candidate"===e.type)&&(r[e.id]=e),("localcandidate"===e.type||"local-candidate"===e.type)&&(o[e.id]=e),("candidatepair"===e.type||"candidate-pair"===e.type)&&(i[e.id]=e)});const s=e=>{d=!0;var t=o[e.localCandidateId];t&&(t.ip||t.address)?(this.localAddress=t.ip||t.address,this.localPort=+t.port):t&&t.ipAddress?(this.localAddress=t.ipAddress,this.localPort=+t.portNumber):"string"==typeof e.googLocalAddress&&(t=e.googLocalAddress.split(":"),this.localAddress=t[0],this.localPort=+t[1]),this.localAddress&&(this.localFamily=this.localAddress.includes(":")?"IPv6":"IPv4");var n=r[e.remoteCandidateId];n&&(n.ip||n.address)?(this.remoteAddress=n.ip||n.address,this.remotePort=+n.port):n&&n.ipAddress?(this.remoteAddress=n.ipAddress,this.remotePort=+n.portNumber):"string"==typeof e.googRemoteAddress&&(n=e.googRemoteAddress.split(":"),this.remoteAddress=n[0],this.remotePort=+n[1]),this.remoteAddress&&(this.remoteFamily=this.remoteAddress.includes(":")?"IPv6":"IPv4"),this._debug("connect local: %s:%s remote: %s:%s",this.localAddress,this.localPort,this.remoteAddress,this.remotePort)};if(n.forEach(e=>{"transport"===e.type&&e.selectedCandidatePairId&&s(i[e.selectedCandidatePairId]),("googCandidatePair"===e.type&&"true"===e.googActiveConnection||("candidatepair"===e.type||"candidate-pair"===e.type)&&e.selected)&&s(e)}),!d&&(!Object.keys(i).length||Object.keys(o).length))return void setTimeout(e,100);if(this._connecting=!1,this._connected=!0,this._chunk){try{this.send(this._chunk)}catch(e){return this.destroy(a(e,"ERR_DATA_CHANNEL"))}this._chunk=null,this._debug("sent chunk from \"write before connect\"");var l=this._cb;this._cb=null,l(null)}"number"!=typeof 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track"),this.emit("track",e.track,t),this._remoteTracks.push({track:e.track,stream:t}),this._remoteStreams.some(e=>e.id===t.id)||(this._remoteStreams.push(t),c(()=>{this._debug("on stream"),this.emit("stream",t)}))})}_debug(){var e=[].slice.call(arguments);e[0]="["+this._id+"] "+e[0],i.apply(null,e)}_startIceFailureRecoveryTimeout(){this.destroyed||this._iceFailureRecoveryTimer||(this._debug("started iceFailureRecovery timeout"),this._iceFailureRecoveryTimer=setTimeout(()=>{let e=!this._iceComplete&&"connected"!==iceConnectionState&&"completed"!==iceConnectionState;e&&(this._debug("iceFailureRecovery timeout completed"),this.destroy(a("Ice connection failed.","ERR_ICE_CONNECTION_FAILURE")))},this.iceFailureRecoveryTimeout))}}p.WEBRTC_SUPPORT=!!d(),p.config={iceServers:[{urls:["stun:stun.l.google.com:19302","stun:global.stun.twilio.com:3478"]}],sdpSemantics:"unified-plan"},p.channelConfig={},t.exports=p}).call(this,e("buffer").Buffer)},{buffer:3,debug:4,"get-browser-rtc":7,"queue-microtask":12,randombytes:13,"readable-stream":28}]},{},[])("/")}); \ No newline at end of file From ea5c3f41a58ff0a61d635e886b30866b7a887254 Mon Sep 17 00:00:00 2001 From: Mo Date: Sun, 26 Jul 2020 18:15:37 +0430 Subject: [PATCH 09/30] v1.1.2 --- package.json | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/package.json b/package.json index 8c93cd45..11554e67 100644 --- a/package.json +++ b/package.json @@ -70,5 +70,5 @@ "test-node": "WRTC=wrtc tape test/*.js", "coverage": "nyc report --reporter=text-lcov | coveralls" }, - "version": "1.1.1" + "version": "1.1.2" } From aa8787e56fadc24afa2dc4934dd2d3c14033e420 Mon Sep 17 00:00:00 2001 From: Mo Date: Sun, 26 Jul 2020 18:15:53 +0430 Subject: [PATCH 10/30] Remove connection state change destroy --- index.js | 3 ++- simplepeer.min.js | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/index.js b/index.js index e21b804a..eecf1394 100644 --- a/index.js +++ b/index.js @@ -668,7 +668,8 @@ class Peer extends stream.Duplex { _onConnectionStateChange () { if (this.destroyed) return if (this._pc.connectionState === 'failed') { - this.destroy(makeError('Connection failed.', 'ERR_CONNECTION_FAILURE')) + // Do nothing, just wait for ice restart + // this.destroy(makeError('Connection failed.', 'ERR_CONNECTION_FAILURE')) } } diff --git a/simplepeer.min.js b/simplepeer.min.js index f4b7d4bc..3196fca0 100644 --- a/simplepeer.min.js +++ b/simplepeer.min.js @@ -3,4 +3,4 @@ * * @author Feross Aboukhadijeh * @license MIT - */'use strict';var z=String.fromCharCode,K=Math.min;function a(e){if(2147483647e)throw new RangeError("The value \""+e+"\" is invalid for option 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i=e("debug")("simple-peer"),d=e("get-browser-rtc"),s=e("randombytes"),l=e("readable-stream"),c=e("queue-microtask"),u=65536;class p extends l.Duplex{constructor(e){if(e=Object.assign({allowHalfOpen:!1},e),super(e),this._id=s(4).toString("hex").slice(0,7),this._debug("new peer %o",e),this.channelName=e.initiator?e.channelName||s(20).toString("hex"):null,this.initiator=e.initiator||!1,this.channelConfig=e.channelConfig||p.channelConfig,this.negotiated=this.channelConfig.negotiated,this.config=Object.assign({},p.config,e.config),this.offerOptions=e.offerOptions||{},this.answerOptions=e.answerOptions||{},this.sdpTransform=e.sdpTransform||(e=>e),this.streams=e.streams||(e.stream?[e.stream]:[]),this.trickle=void 0===e.trickle||e.trickle,this.allowHalfTrickle=void 0!==e.allowHalfTrickle&&e.allowHalfTrickle,this.iceCompleteTimeout=e.iceCompleteTimeout||5000,this.iceFailureRecoveryTimeout=e.iceFailureRecoveryTimeout||5000,this.destroyed=!1,this._connected=!1,this.remoteAddress=void 0,this.remoteFamily=void 0,this.remotePort=void 0,this.localAddress=void 0,this.localFamily=void 0,this.localPort=void 0,this._wrtc=e.wrtc&&"object"==typeof e.wrtc?e.wrtc:d(),!this._wrtc)if("undefined"==typeof window)throw a("No WebRTC support: Specify `opts.wrtc` option in this environment","ERR_WEBRTC_SUPPORT");else throw a("No WebRTC support: Not a supported browser","ERR_WEBRTC_SUPPORT");this._pcReady=!1,this._channelReady=!1,this._iceComplete=!1,this._iceCompleteTimer=null,this._channel=null,this._pendingCandidates=[],this._iceFailureRecoveryTimer=null,this._isNegotiating=!this.negotiated&&!this.initiator,this._isRestartingIce=!1,this._batchedNegotiation=!1,this._queuedNegotiation=!1,this._sendersAwaitingStable=[],this._senderMap=new Map,this._firstStable=!0,this._closingInterval=null,this._remoteTracks=[],this._remoteStreams=[],this._chunk=null,this._cb=null,this._interval=null;try{this._pc=new this._wrtc.RTCPeerConnection(this.config)}catch(e){return void c(()=>this.destroy(a(e,"ERR_PC_CONSTRUCTOR")))}this._isReactNativeWebrtc="number"==typeof this._pc._peerConnectionId,this._pc.oniceconnectionstatechange=()=>{this._onIceStateChange()},this._pc.onicegatheringstatechange=()=>{this._onIceStateChange()},this._pc.onconnectionstatechange=()=>{this._onConnectionStateChange()},this._pc.onsignalingstatechange=()=>{this._onSignalingStateChange()},this._pc.onicecandidate=e=>{this._onIceCandidate(e)},this.initiator||this.negotiated?this._setupData({channel:this._pc.createDataChannel(this.channelName,this.channelConfig)}):this._pc.ondatachannel=e=>{this._setupData(e)},this.streams&&this.streams.forEach(e=>{this.addStream(e,!1)}),this._pc.ontrack=e=>{this._onTrack(e)},this.initiator&&this._needsNegotiation(),this._onFinishBound=()=>{this._onFinish()},this.once("finish",this._onFinishBound)}get bufferSize(){return this._channel&&this._channel.bufferedAmount||0}get connected(){return this._connected&&"open"===this._channel.readyState}address(){return{port:this.localPort,family:this.localFamily,address:this.localAddress}}signal(e){if(this.destroyed)throw a("cannot signal after peer is destroyed","ERR_SIGNALING");if("string"==typeof e)try{e=JSON.parse(e)}catch(t){e={}}this._debug("signal()"),e.renegotiate&&this.initiator&&(this._debug("got request to renegotiate"),this._needsNegotiation()),e.transceiverRequest&&this.initiator&&(this._debug("got request for transceiver"),this.addTransceiver(e.transceiverRequest.kind,e.transceiverRequest.init)),e.candidate&&(this._pc.remoteDescription&&this._pc.remoteDescription.type?this._addIceCandidate(e.candidate):this._pendingCandidates.push(e.candidate)),e.sdp&&this._pc.setRemoteDescription(new this._wrtc.RTCSessionDescription(e)).then(()=>{this.destroyed||(this._pendingCandidates.forEach(e=>{this._addIceCandidate(e)}),this._pendingCandidates=[],"offer"===this._pc.remoteDescription.type&&this._createAnswer())}).catch(e=>{this.destroy(a(e,"ERR_SET_REMOTE_DESCRIPTION"))}),e.sdp||e.candidate||e.renegotiate||e.transceiverRequest||this.destroy(a("signal() called with invalid signal data","ERR_SIGNALING"))}_addIceCandidate(e){var t=new this._wrtc.RTCIceCandidate(e);this._pc.addIceCandidate(t).catch(e=>{!t.address||t.address.endsWith(".local")?o("Ignoring unsupported ICE candidate."):this.destroy(a(e,"ERR_ADD_ICE_CANDIDATE"))})}send(e){this._channel.send(e)}addTransceiver(e,t){if(this._debug("addTransceiver()"),this.initiator)try{this._pc.addTransceiver(e,t),this._needsNegotiation()}catch(e){this.destroy(a(e,"ERR_ADD_TRANSCEIVER"))}else this.emit("signal",{type:"transceiverRequest",transceiverRequest:{kind:e,init:t}})}addStream(e,t=!0){this._debug("addStream()"),e.getTracks().forEach(n=>{this.addTrack(n,e,t)})}addTrack(e,t,n=!0){this._debug("addTrack()");var r=this._senderMap.get(e)||new Map,o=r.get(t);if(!o)o=this._pc.addTrack(e,t),r.set(t,o),this._senderMap.set(e,r),n&&this._needsNegotiation();else if(o.removed)throw a("Track has been removed. You should enable/disable tracks that you want to re-add.","ERR_SENDER_REMOVED");else throw a("Track has already been added to that stream.","ERR_SENDER_ALREADY_ADDED")}replaceTrack(e,t,n){this._debug("replaceTrack()");var r=this._senderMap.get(e),o=r?r.get(n):null;if(!o)throw a("Cannot replace track that was never added.","ERR_TRACK_NOT_ADDED");t&&this._senderMap.set(t,r),null==o.replaceTrack?this.destroy(a("replaceTrack is not supported in this browser","ERR_UNSUPPORTED_REPLACETRACK")):o.replaceTrack(t)}removeTrack(e,t){this._debug("removeSender()");var n=this._senderMap.get(e),r=n?n.get(t):null;if(!r)throw a("Cannot remove track that was never added.","ERR_TRACK_NOT_ADDED");try{r.removed=!0,this._pc.removeTrack(r)}catch(e){"NS_ERROR_UNEXPECTED"===e.name?this._sendersAwaitingStable.push(r):this.destroy(a(e,"ERR_REMOVE_TRACK"))}this._needsNegotiation()}removeStream(e){this._debug("removeSenders()"),e.getTracks().forEach(t=>{this.removeTrack(t,e)})}_needsNegotiation(){this._debug("_needsNegotiation"),this._batchedNegotiation||(this._batchedNegotiation=!0,c(()=>{this._batchedNegotiation=!1,this._debug("starting batched negotiation"),this.negotiate()}))}negotiate(){this._debug("negotiate"),this.emit("negotiate"),this.initiator?this._isNegotiating?(this._queuedNegotiation=!0,this._debug("already negotiating, queueing")):(this._debug("start negotiation"),setTimeout(()=>{this._createOffer()},0)):this._isNegotiating?(this._queuedNegotiation=!0,this._debug("already negotiating, queueing")):(this._debug("requesting negotiation from initiator"),this.emit("signal",{type:"renegotiate",renegotiate:!0})),this._isNegotiating=!0}destroy(e){this._destroy(e,()=>{})}_destroy(e,t){if(!this.destroyed){if(this._debug("destroy (error: %s)",e&&(e.message||e)),this.readable=this.writable=!1,this._readableState.ended||this.push(null),this._writableState.finished||this.end(),this.destroyed=!0,this._connected=!1,this._pcReady=!1,this._channelReady=!1,this._remoteTracks=null,this._remoteStreams=null,this._senderMap=null,clearInterval(this._closingInterval),this._closingInterval=null,clearInterval(this._interval),this._interval=null,this._chunk=null,this._cb=null,this._onFinishBound&&this.removeListener("finish",this._onFinishBound),this._onFinishBound=null,this._channel){try{this._channel.close()}catch(e){}this._channel.onmessage=null,this._channel.onopen=null,this._channel.onclose=null,this._channel.onerror=null}if(this._pc){try{this._pc.close()}catch(e){}this._pc.oniceconnectionstatechange=null,this._pc.onicegatheringstatechange=null,this._pc.onsignalingstatechange=null,this._pc.onicecandidate=null,this._pc.ontrack=null,this._pc.ondatachannel=null}this._pc=null,this._channel=null,e&&this.emit("error",e),this.emit("close"),t()}}_setupData(e){if(!e.channel)return this.destroy(a("Data channel event is missing `channel` property","ERR_DATA_CHANNEL"));this._channel=e.channel,this._channel.binaryType="arraybuffer","number"==typeof this._channel.bufferedAmountLowThreshold&&(this._channel.bufferedAmountLowThreshold=u),this.channelName=this._channel.label,this._channel.onmessage=e=>{this._onChannelMessage(e)},this._channel.onbufferedamountlow=()=>{this._onChannelBufferedAmountLow()},this._channel.onopen=()=>{this._onChannelOpen()},this._channel.onclose=()=>{this._onChannelClose()},this._channel.onerror=e=>{this.destroy(a(e,"ERR_DATA_CHANNEL"))};var t=!1;this._closingInterval=setInterval(()=>{this._channel&&"closing"===this._channel.readyState?(t&&this._onChannelClose(),t=!0):t=!1},5000)}_read(){}_write(e,t,n){if(this.destroyed)return n(a("cannot write after peer is destroyed","ERR_DATA_CHANNEL"));if(this._connected){try{this.send(e)}catch(e){return this.destroy(a(e,"ERR_DATA_CHANNEL"))}this._channel.bufferedAmount>u?(this._debug("start backpressure: bufferedAmount %d",this._channel.bufferedAmount),this._cb=n):n(null)}else this._debug("write before connect"),this._chunk=e,this._cb=n}_onFinish(){if(!this.destroyed){const e=()=>{setTimeout(()=>this.destroy(),1e3)};this._connected?e():this.once("connect",e)}}_startIceCompleteTimeout(){this.destroyed||this._iceCompleteTimer||(this._debug("started iceComplete timeout"),this._iceCompleteTimer=setTimeout(()=>{this._iceComplete||(this._iceComplete=!0,this._debug("iceComplete timeout completed"),this.emit("iceTimeout"),this.emit("_iceComplete"))},this.iceCompleteTimeout))}_createOffer(){this.destroyed||this._pc.createOffer(this.offerOptions).then(e=>{if(this.destroyed)return;this.trickle||this.allowHalfTrickle||(e.sdp=r(e.sdp)),e.sdp=this.sdpTransform(e.sdp);const t=()=>{if(!this.destroyed){var t=this._pc.localDescription||e;this._debug("signal"),this.emit("signal",{type:t.type,sdp:t.sdp})}};this._pc.setLocalDescription(e).then(()=>{this._debug("createOffer success"),this.destroyed||(this.trickle||this._iceComplete?t():this.once("_iceComplete",t))}).catch(e=>{this.destroy(a(e,"ERR_SET_LOCAL_DESCRIPTION"))})}).catch(e=>{this.destroy(a(e,"ERR_CREATE_OFFER"))})}_requestMissingTransceivers(){this._pc.getTransceivers&&this._pc.getTransceivers().forEach(e=>{e.mid||!e.sender.track||e.requested||(e.requested=!0,this.addTransceiver(e.sender.track.kind))})}_createAnswer(){this.destroyed||this._pc.createAnswer(this.answerOptions).then(e=>{if(this.destroyed)return;this.trickle||this.allowHalfTrickle||(e.sdp=r(e.sdp)),e.sdp=this.sdpTransform(e.sdp);const t=()=>{if(!this.destroyed){var t=this._pc.localDescription||e;this._debug("signal"),this.emit("signal",{type:t.type,sdp:t.sdp}),this.initiator||this._requestMissingTransceivers()}};this._pc.setLocalDescription(e).then(()=>{this.destroyed||(this.trickle||this._iceComplete?t():this.once("_iceComplete",t))}).catch(e=>{this.destroy(a(e,"ERR_SET_LOCAL_DESCRIPTION"))})}).catch(e=>{this.destroy(a(e,"ERR_CREATE_ANSWER"))})}_onConnectionStateChange(){this.destroyed||"failed"===this._pc.connectionState&&this.destroy(a("Connection failed.","ERR_CONNECTION_FAILURE"))}_onIceStateChange(){if(!this.destroyed){var e=this._pc.iceConnectionState,t=this._pc.iceGatheringState;this._debug("iceStateChange (connection: %s) (gathering: %s)",e,t),this.emit("iceStateChange",e,t),("connected"===e||"completed"===e)&&(this._pcReady=!0,this._isRestartingIce=!1,this._maybeReady()),("disconnected"===e||"failed"===e)&&this.initiator&&!this._isRestartingIce&&(this._isNegotiating=!1,this._isRestartingIce=!0,this._debug("ICE restart triggered."),this._pc.restartIce(),this._needsNegotiation(),this._startIceFailureRecoveryTimeout()),"closed"===e&&this.destroy(a("Ice connection closed.","ERR_ICE_CONNECTION_CLOSED"))}}getStats(e){const t=e=>("[object Array]"===Object.prototype.toString.call(e.values)&&e.values.forEach(t=>{Object.assign(e,t)}),e);0===this._pc.getStats.length||this._isReactNativeWebrtc?this._pc.getStats().then(n=>{var r=[];n.forEach(e=>{r.push(t(e))}),e(null,r)},t=>e(t)):0{if(!this.destroyed){var r=[];n.result().forEach(e=>{var n={};e.names().forEach(t=>{n[t]=e.stat(t)}),n.id=e.id,n.type=e.type,n.timestamp=e.timestamp,r.push(t(n))}),e(null,r)}},t=>e(t)):e(null,[])}_maybeReady(){if(this._debug("maybeReady pc %s channel %s",this._pcReady,this._channelReady),this._connected||this._connecting||!this._pcReady||!this._channelReady)return;this._connecting=!0;const e=()=>{this.destroyed||this.getStats((t,n)=>{if(this.destroyed)return;t&&(n=[]);var r={},o={},i={},d=!1;n.forEach(e=>{("remotecandidate"===e.type||"remote-candidate"===e.type)&&(r[e.id]=e),("localcandidate"===e.type||"local-candidate"===e.type)&&(o[e.id]=e),("candidatepair"===e.type||"candidate-pair"===e.type)&&(i[e.id]=e)});const s=e=>{d=!0;var t=o[e.localCandidateId];t&&(t.ip||t.address)?(this.localAddress=t.ip||t.address,this.localPort=+t.port):t&&t.ipAddress?(this.localAddress=t.ipAddress,this.localPort=+t.portNumber):"string"==typeof e.googLocalAddress&&(t=e.googLocalAddress.split(":"),this.localAddress=t[0],this.localPort=+t[1]),this.localAddress&&(this.localFamily=this.localAddress.includes(":")?"IPv6":"IPv4");var n=r[e.remoteCandidateId];n&&(n.ip||n.address)?(this.remoteAddress=n.ip||n.address,this.remotePort=+n.port):n&&n.ipAddress?(this.remoteAddress=n.ipAddress,this.remotePort=+n.portNumber):"string"==typeof e.googRemoteAddress&&(n=e.googRemoteAddress.split(":"),this.remoteAddress=n[0],this.remotePort=+n[1]),this.remoteAddress&&(this.remoteFamily=this.remoteAddress.includes(":")?"IPv6":"IPv4"),this._debug("connect local: %s:%s remote: %s:%s",this.localAddress,this.localPort,this.remoteAddress,this.remotePort)};if(n.forEach(e=>{"transport"===e.type&&e.selectedCandidatePairId&&s(i[e.selectedCandidatePairId]),("googCandidatePair"===e.type&&"true"===e.googActiveConnection||("candidatepair"===e.type||"candidate-pair"===e.type)&&e.selected)&&s(e)}),!d&&(!Object.keys(i).length||Object.keys(o).length))return void setTimeout(e,100);if(this._connecting=!1,this._connected=!0,this._chunk){try{this.send(this._chunk)}catch(e){return this.destroy(a(e,"ERR_DATA_CHANNEL"))}this._chunk=null,this._debug("sent chunk from \"write before connect\"");var l=this._cb;this._cb=null,l(null)}"number"!=typeof this._channel.bufferedAmountLowThreshold&&(this._interval=setInterval(()=>this._onInterval(),150),this._interval.unref&&this._interval.unref()),this._debug("connect"),this.emit("connect")})};e()}_onInterval(){this._cb&&this._channel&&!(this._channel.bufferedAmount>u)&&this._onChannelBufferedAmountLow()}_onSignalingStateChange(){this.destroyed||("stable"===this._pc.signalingState&&!this._firstStable&&(this._firstStable=!1,this._isNegotiating=!1,this._debug("flushing sender queue",this._sendersAwaitingStable),this._sendersAwaitingStable.forEach(e=>{this._pc.removeTrack(e),this._queuedNegotiation=!0}),this._sendersAwaitingStable=[],this._queuedNegotiation&&(this._debug("flushing negotiation queue"),this._queuedNegotiation=!1,this._needsNegotiation())),this._debug("signalingStateChange %s",this._pc.signalingState),this.emit("signalingStateChange",this._pc.signalingState))}_onIceCandidate(e){this.destroyed||(e.candidate&&this.trickle?this.emit("signal",{type:"candidate",candidate:{candidate:e.candidate.candidate,sdpMLineIndex:e.candidate.sdpMLineIndex,sdpMid:e.candidate.sdpMid}}):!e.candidate&&!this._iceComplete&&(this._iceComplete=!0,this.emit("_iceComplete")),e.candidate&&this._startIceCompleteTimeout())}_onChannelMessage(e){if(!this.destroyed){var t=e.data;t instanceof ArrayBuffer&&(t=n.from(t)),this.push(t)}}_onChannelBufferedAmountLow(){if(!this.destroyed&&this._cb){this._debug("ending backpressure: bufferedAmount %d",this._channel.bufferedAmount);var e=this._cb;this._cb=null,e(null)}}_onChannelOpen(){this._connected||this.destroyed||(this._debug("on channel open"),this._channelReady=!0,this._maybeReady())}_onChannelClose(){this.destroyed||(this._debug("on channel close"),this.destroy())}_onTrack(e){this.destroyed||e.streams.forEach(t=>{this._debug("on track"),this.emit("track",e.track,t),this._remoteTracks.push({track:e.track,stream:t}),this._remoteStreams.some(e=>e.id===t.id)||(this._remoteStreams.push(t),c(()=>{this._debug("on stream"),this.emit("stream",t)}))})}_debug(){var e=[].slice.call(arguments);e[0]="["+this._id+"] "+e[0],i.apply(null,e)}_startIceFailureRecoveryTimeout(){this.destroyed||this._iceFailureRecoveryTimer||(this._debug("started iceFailureRecovery timeout"),this._iceFailureRecoveryTimer=setTimeout(()=>{let e=!this._iceComplete&&"connected"!==iceConnectionState&&"completed"!==iceConnectionState;e&&(this._debug("iceFailureRecovery timeout completed"),this.destroy(a("Ice connection 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this._connected&&"open"===this._channel.readyState}address(){return{port:this.localPort,family:this.localFamily,address:this.localAddress}}signal(e){if(this.destroyed)throw a("cannot signal after peer is destroyed","ERR_SIGNALING");if("string"==typeof e)try{e=JSON.parse(e)}catch(t){e={}}this._debug("signal()"),e.renegotiate&&this.initiator&&(this._debug("got request to renegotiate"),this._needsNegotiation()),e.transceiverRequest&&this.initiator&&(this._debug("got request for transceiver"),this.addTransceiver(e.transceiverRequest.kind,e.transceiverRequest.init)),e.candidate&&(this._pc.remoteDescription&&this._pc.remoteDescription.type?this._addIceCandidate(e.candidate):this._pendingCandidates.push(e.candidate)),e.sdp&&this._pc.setRemoteDescription(new 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this.emit("signal",{type:"transceiverRequest",transceiverRequest:{kind:e,init:t}})}addStream(e,t=!0){this._debug("addStream()"),e.getTracks().forEach(n=>{this.addTrack(n,e,t)})}addTrack(e,t,n=!0){this._debug("addTrack()");var r=this._senderMap.get(e)||new Map,o=r.get(t);if(!o)o=this._pc.addTrack(e,t),r.set(t,o),this._senderMap.set(e,r),n&&this._needsNegotiation();else if(o.removed)throw a("Track has been removed. 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added.","ERR_TRACK_NOT_ADDED");try{r.removed=!0,this._pc.removeTrack(r)}catch(e){"NS_ERROR_UNEXPECTED"===e.name?this._sendersAwaitingStable.push(r):this.destroy(a(e,"ERR_REMOVE_TRACK"))}this._needsNegotiation()}removeStream(e){this._debug("removeSenders()"),e.getTracks().forEach(t=>{this.removeTrack(t,e)})}_needsNegotiation(){this._debug("_needsNegotiation"),this._batchedNegotiation||(this._batchedNegotiation=!0,c(()=>{this._batchedNegotiation=!1,this._debug("starting batched negotiation"),this.negotiate()}))}negotiate(){this._debug("negotiate"),this.emit("negotiate"),this.initiator?this._isNegotiating?(this._queuedNegotiation=!0,this._debug("already negotiating, queueing")):(this._debug("start negotiation"),setTimeout(()=>{this._createOffer()},0)):this._isNegotiating?(this._queuedNegotiation=!0,this._debug("already negotiating, queueing")):(this._debug("requesting negotiation from initiator"),this.emit("signal",{type:"renegotiate",renegotiate:!0})),this._isNegotiating=!0}destroy(e){this._destroy(e,()=>{})}_destroy(e,t){if(!this.destroyed){if(this._debug("destroy (error: %s)",e&&(e.message||e)),this.readable=this.writable=!1,this._readableState.ended||this.push(null),this._writableState.finished||this.end(),this.destroyed=!0,this._connected=!1,this._pcReady=!1,this._channelReady=!1,this._remoteTracks=null,this._remoteStreams=null,this._senderMap=null,clearInterval(this._closingInterval),this._closingInterval=null,clearInterval(this._interval),this._interval=null,this._chunk=null,this._cb=null,this._onFinishBound&&this.removeListener("finish",this._onFinishBound),this._onFinishBound=null,this._channel){try{this._channel.close()}catch(e){}this._channel.onmessage=null,this._channel.onopen=null,this._channel.onclose=null,this._channel.onerror=null}if(this._pc){try{this._pc.close()}catch(e){}this._pc.oniceconnectionstatechange=null,this._pc.onicegatheringstatechange=null,this._pc.onsignalingstatechange=null,this._pc.onicecandidate=null,this._pc.ontrack=null,this._pc.ondatachannel=null}this._pc=null,this._channel=null,e&&this.emit("error",e),this.emit("close"),t()}}_setupData(e){if(!e.channel)return this.destroy(a("Data channel event is missing `channel` property","ERR_DATA_CHANNEL"));this._channel=e.channel,this._channel.binaryType="arraybuffer","number"==typeof this._channel.bufferedAmountLowThreshold&&(this._channel.bufferedAmountLowThreshold=u),this.channelName=this._channel.label,this._channel.onmessage=e=>{this._onChannelMessage(e)},this._channel.onbufferedamountlow=()=>{this._onChannelBufferedAmountLow()},this._channel.onopen=()=>{this._onChannelOpen()},this._channel.onclose=()=>{this._onChannelClose()},this._channel.onerror=e=>{this.destroy(a(e,"ERR_DATA_CHANNEL"))};var t=!1;this._closingInterval=setInterval(()=>{this._channel&&"closing"===this._channel.readyState?(t&&this._onChannelClose(),t=!0):t=!1},5000)}_read(){}_write(e,t,n){if(this.destroyed)return n(a("cannot write after peer is destroyed","ERR_DATA_CHANNEL"));if(this._connected){try{this.send(e)}catch(e){return this.destroy(a(e,"ERR_DATA_CHANNEL"))}this._channel.bufferedAmount>u?(this._debug("start backpressure: bufferedAmount %d",this._channel.bufferedAmount),this._cb=n):n(null)}else this._debug("write before connect"),this._chunk=e,this._cb=n}_onFinish(){if(!this.destroyed){const e=()=>{setTimeout(()=>this.destroy(),1e3)};this._connected?e():this.once("connect",e)}}_startIceCompleteTimeout(){this.destroyed||this._iceCompleteTimer||(this._debug("started iceComplete timeout"),this._iceCompleteTimer=setTimeout(()=>{this._iceComplete||(this._iceComplete=!0,this._debug("iceComplete timeout completed"),this.emit("iceTimeout"),this.emit("_iceComplete"))},this.iceCompleteTimeout))}_createOffer(){this.destroyed||this._pc.createOffer(this.offerOptions).then(e=>{if(this.destroyed)return;this.trickle||this.allowHalfTrickle||(e.sdp=r(e.sdp)),e.sdp=this.sdpTransform(e.sdp);const t=()=>{if(!this.destroyed){var t=this._pc.localDescription||e;this._debug("signal"),this.emit("signal",{type:t.type,sdp:t.sdp})}};this._pc.setLocalDescription(e).then(()=>{this._debug("createOffer success"),this.destroyed||(this.trickle||this._iceComplete?t():this.once("_iceComplete",t))}).catch(e=>{this.destroy(a(e,"ERR_SET_LOCAL_DESCRIPTION"))})}).catch(e=>{this.destroy(a(e,"ERR_CREATE_OFFER"))})}_requestMissingTransceivers(){this._pc.getTransceivers&&this._pc.getTransceivers().forEach(e=>{e.mid||!e.sender.track||e.requested||(e.requested=!0,this.addTransceiver(e.sender.track.kind))})}_createAnswer(){this.destroyed||this._pc.createAnswer(this.answerOptions).then(e=>{if(this.destroyed)return;this.trickle||this.allowHalfTrickle||(e.sdp=r(e.sdp)),e.sdp=this.sdpTransform(e.sdp);const t=()=>{if(!this.destroyed){var t=this._pc.localDescription||e;this._debug("signal"),this.emit("signal",{type:t.type,sdp:t.sdp}),this.initiator||this._requestMissingTransceivers()}};this._pc.setLocalDescription(e).then(()=>{this.destroyed||(this.trickle||this._iceComplete?t():this.once("_iceComplete",t))}).catch(e=>{this.destroy(a(e,"ERR_SET_LOCAL_DESCRIPTION"))})}).catch(e=>{this.destroy(a(e,"ERR_CREATE_ANSWER"))})}_onConnectionStateChange(){this.destroyed||"failed"===this._pc.connectionState}_onIceStateChange(){if(!this.destroyed){var e=this._pc.iceConnectionState,t=this._pc.iceGatheringState;this._debug("iceStateChange (connection: %s) (gathering: %s)",e,t),this.emit("iceStateChange",e,t),("connected"===e||"completed"===e)&&(this._pcReady=!0,this._isRestartingIce=!1,this._maybeReady()),("disconnected"===e||"failed"===e)&&this.initiator&&!this._isRestartingIce&&(this._isNegotiating=!1,this._isRestartingIce=!0,this._debug("ICE restart triggered."),this._pc.restartIce(),this._needsNegotiation(),this._startIceFailureRecoveryTimeout()),"closed"===e&&this.destroy(a("Ice connection closed.","ERR_ICE_CONNECTION_CLOSED"))}}getStats(e){const t=e=>("[object Array]"===Object.prototype.toString.call(e.values)&&e.values.forEach(t=>{Object.assign(e,t)}),e);0===this._pc.getStats.length||this._isReactNativeWebrtc?this._pc.getStats().then(n=>{var r=[];n.forEach(e=>{r.push(t(e))}),e(null,r)},t=>e(t)):0{if(!this.destroyed){var r=[];n.result().forEach(e=>{var n={};e.names().forEach(t=>{n[t]=e.stat(t)}),n.id=e.id,n.type=e.type,n.timestamp=e.timestamp,r.push(t(n))}),e(null,r)}},t=>e(t)):e(null,[])}_maybeReady(){if(this._debug("maybeReady pc %s channel %s",this._pcReady,this._channelReady),this._connected||this._connecting||!this._pcReady||!this._channelReady)return;this._connecting=!0;const e=()=>{this.destroyed||this.getStats((t,n)=>{if(this.destroyed)return;t&&(n=[]);var r={},o={},i={},d=!1;n.forEach(e=>{("remotecandidate"===e.type||"remote-candidate"===e.type)&&(r[e.id]=e),("localcandidate"===e.type||"local-candidate"===e.type)&&(o[e.id]=e),("candidatepair"===e.type||"candidate-pair"===e.type)&&(i[e.id]=e)});const s=e=>{d=!0;var t=o[e.localCandidateId];t&&(t.ip||t.address)?(this.localAddress=t.ip||t.address,this.localPort=+t.port):t&&t.ipAddress?(this.localAddress=t.ipAddress,this.localPort=+t.portNumber):"string"==typeof e.googLocalAddress&&(t=e.googLocalAddress.split(":"),this.localAddress=t[0],this.localPort=+t[1]),this.localAddress&&(this.localFamily=this.localAddress.includes(":")?"IPv6":"IPv4");var n=r[e.remoteCandidateId];n&&(n.ip||n.address)?(this.remoteAddress=n.ip||n.address,this.remotePort=+n.port):n&&n.ipAddress?(this.remoteAddress=n.ipAddress,this.remotePort=+n.portNumber):"string"==typeof e.googRemoteAddress&&(n=e.googRemoteAddress.split(":"),this.remoteAddress=n[0],this.remotePort=+n[1]),this.remoteAddress&&(this.remoteFamily=this.remoteAddress.includes(":")?"IPv6":"IPv4"),this._debug("connect local: %s:%s remote: %s:%s",this.localAddress,this.localPort,this.remoteAddress,this.remotePort)};if(n.forEach(e=>{"transport"===e.type&&e.selectedCandidatePairId&&s(i[e.selectedCandidatePairId]),("googCandidatePair"===e.type&&"true"===e.googActiveConnection||("candidatepair"===e.type||"candidate-pair"===e.type)&&e.selected)&&s(e)}),!d&&(!Object.keys(i).length||Object.keys(o).length))return void setTimeout(e,100);if(this._connecting=!1,this._connected=!0,this._chunk){try{this.send(this._chunk)}catch(e){return this.destroy(a(e,"ERR_DATA_CHANNEL"))}this._chunk=null,this._debug("sent chunk from \"write before connect\"");var l=this._cb;this._cb=null,l(null)}"number"!=typeof this._channel.bufferedAmountLowThreshold&&(this._interval=setInterval(()=>this._onInterval(),150),this._interval.unref&&this._interval.unref()),this._debug("connect"),this.emit("connect")})};e()}_onInterval(){this._cb&&this._channel&&!(this._channel.bufferedAmount>u)&&this._onChannelBufferedAmountLow()}_onSignalingStateChange(){this.destroyed||("stable"===this._pc.signalingState&&!this._firstStable&&(this._firstStable=!1,this._isNegotiating=!1,this._debug("flushing sender queue",this._sendersAwaitingStable),this._sendersAwaitingStable.forEach(e=>{this._pc.removeTrack(e),this._queuedNegotiation=!0}),this._sendersAwaitingStable=[],this._queuedNegotiation&&(this._debug("flushing negotiation queue"),this._queuedNegotiation=!1,this._needsNegotiation())),this._debug("signalingStateChange %s",this._pc.signalingState),this.emit("signalingStateChange",this._pc.signalingState))}_onIceCandidate(e){this.destroyed||(e.candidate&&this.trickle?this.emit("signal",{type:"candidate",candidate:{candidate:e.candidate.candidate,sdpMLineIndex:e.candidate.sdpMLineIndex,sdpMid:e.candidate.sdpMid}}):!e.candidate&&!this._iceComplete&&(this._iceComplete=!0,this.emit("_iceComplete")),e.candidate&&this._startIceCompleteTimeout())}_onChannelMessage(e){if(!this.destroyed){var t=e.data;t instanceof ArrayBuffer&&(t=n.from(t)),this.push(t)}}_onChannelBufferedAmountLow(){if(!this.destroyed&&this._cb){this._debug("ending backpressure: bufferedAmount %d",this._channel.bufferedAmount);var e=this._cb;this._cb=null,e(null)}}_onChannelOpen(){this._connected||this.destroyed||(this._debug("on channel open"),this._channelReady=!0,this._maybeReady())}_onChannelClose(){this.destroyed||(this._debug("on channel close"),this.destroy())}_onTrack(e){this.destroyed||e.streams.forEach(t=>{this._debug("on track"),this.emit("track",e.track,t),this._remoteTracks.push({track:e.track,stream:t}),this._remoteStreams.some(e=>e.id===t.id)||(this._remoteStreams.push(t),c(()=>{this._debug("on stream"),this.emit("stream",t)}))})}_debug(){var e=[].slice.call(arguments);e[0]="["+this._id+"] "+e[0],i.apply(null,e)}_startIceFailureRecoveryTimeout(){this.destroyed||this._iceFailureRecoveryTimer||(this._debug("started iceFailureRecovery timeout"),this._iceFailureRecoveryTimer=setTimeout(()=>{let e=!this._iceComplete&&"connected"!==iceConnectionState&&"completed"!==iceConnectionState;e&&(this._debug("iceFailureRecovery timeout completed"),this.destroy(a("Ice connection failed.","ERR_ICE_CONNECTION_FAILURE")))},this.iceFailureRecoveryTimeout))}}p.WEBRTC_SUPPORT=!!d(),p.config={iceServers:[{urls:["stun:stun.l.google.com:19302","stun:global.stun.twilio.com:3478"]}],sdpSemantics:"unified-plan"},p.channelConfig={},t.exports=p}).call(this,e("buffer").Buffer)},{buffer:3,debug:4,"get-browser-rtc":7,"queue-microtask":12,randombytes:13,"readable-stream":28}]},{},[])("/")}); \ No newline at end of file From c853679ecfaf3496856dff0218c03bb96b8ac466 Mon Sep 17 00:00:00 2001 From: Mo Date: Sun, 26 Jul 2020 18:15:58 +0430 Subject: [PATCH 11/30] v1.1.3 --- package.json | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/package.json b/package.json index 11554e67..62af5e5d 100644 --- a/package.json +++ b/package.json @@ -70,5 +70,5 @@ "test-node": "WRTC=wrtc tape test/*.js", "coverage": "nyc report --reporter=text-lcov | coveralls" }, - "version": "1.1.2" + "version": "1.1.3" } From f29710f24280b2b67f1b26844d5a80ee25620c25 Mon Sep 17 00:00:00 2001 From: Feross Aboukhadijeh Date: Wed, 17 Mar 2021 18:38:09 -0700 Subject: [PATCH 12/30] 9.10.0 lsp-format-buffer --- index.js | 112 +++++++++++++++++++++------------------------------ package.json | 2 +- 2 files changed, 48 insertions(+), 66 deletions(-) diff --git a/index.js b/index.js index b715fb6f..aefd186f 100644 --- a/index.js +++ b/index.js @@ -12,11 +12,11 @@ const ICECOMPLETE_TIMEOUT = 5 * 1000 const CHANNEL_CLOSING_TIMEOUT = 5 * 1000 // HACK: Filter trickle lines when trickle is disabled #354 -function filterTrickle (sdp) { +function filterTrickle(sdp) { return sdp.replace(/a=ice-options:trickle\s\n/g, '') } -function warn (message) { +function warn(message) { console.warn(message) } @@ -26,7 +26,7 @@ function warn (message) { * @param {Object} opts */ class Peer extends stream.Duplex { - constructor (opts) { + constructor(opts) { opts = Object.assign({ allowHalfOpen: false }, opts) @@ -165,23 +165,22 @@ class Peer extends stream.Duplex { this.once('finish', this._onFinishBound) } - get bufferSize () { + get bufferSize() { return (this._channel && this._channel.bufferedAmount) || 0 } // HACK: it's possible channel.readyState is "closing" before peer.destroy() fires // https://bugs.chromium.org/p/chromium/issues/detail?id=882743 - get connected () { + get connected() { return (this._connected && this._channel.readyState === 'open') } - address () { + address() { return { port: this.localPort, family: this.localFamily, address: this.localAddress } } - signal (data) { - if (this.destroying) return - if (this.destroyed) throw errCode(new Error('cannot signal after peer is destroyed'), 'ERR_DESTROYED') + signal(data) { + if (this.destroyed) throw errCode(new Error('cannot signal after peer is destroyed'), 'ERR_SIGNALING') if (typeof data === 'string') { try { data = JSON.parse(data) @@ -227,7 +226,7 @@ class Peer extends stream.Duplex { } } - _addIceCandidate (candidate) { + _addIceCandidate(candidate) { const iceCandidateObj = new this._wrtc.RTCIceCandidate(candidate) this._pc.addIceCandidate(iceCandidateObj) .catch(err => { @@ -243,9 +242,7 @@ class Peer extends stream.Duplex { * Send text/binary data to the remote peer. * @param {ArrayBufferView|ArrayBuffer|Buffer|string|Blob} chunk */ - send (chunk) { - if (this.destroying) return - if (this.destroyed) throw errCode(new Error('cannot send after peer is destroyed'), 'ERR_DESTROYED') + send(chunk) { this._channel.send(chunk) } @@ -254,9 +251,7 @@ class Peer extends stream.Duplex { * @param {String} kind * @param {Object} init */ - addTransceiver (kind, init) { - if (this.destroying) return - if (this.destroyed) throw errCode(new Error('cannot addTransceiver after peer is destroyed'), 'ERR_DESTROYED') + addTransceiver(kind, init) { this._debug('addTransceiver()') if (this.initiator) { @@ -278,9 +273,7 @@ class Peer extends stream.Duplex { * Add a MediaStream to the connection. * @param {MediaStream} stream */ - addStream (stream) { - if (this.destroying) return - if (this.destroyed) throw errCode(new Error('cannot addStream after peer is destroyed'), 'ERR_DESTROYED') + addStream(stream) { this._debug('addStream()') stream.getTracks().forEach(track => { @@ -293,9 +286,7 @@ class Peer extends stream.Duplex { * @param {MediaStreamTrack} track * @param {MediaStream} stream */ - addTrack (track, stream) { - if (this.destroying) return - if (this.destroyed) throw errCode(new Error('cannot addTrack after peer is destroyed'), 'ERR_DESTROYED') + addTrack(track, stream) { this._debug('addTrack()') const submap = this._senderMap.get(track) || new Map() // nested Maps map [track, stream] to sender @@ -318,9 +309,7 @@ class Peer extends stream.Duplex { * @param {MediaStreamTrack} newTrack * @param {MediaStream} stream */ - replaceTrack (oldTrack, newTrack, stream) { - if (this.destroying) return - if (this.destroyed) throw errCode(new Error('cannot replaceTrack after peer is destroyed'), 'ERR_DESTROYED') + replaceTrack(oldTrack, newTrack, stream) { this._debug('replaceTrack()') const submap = this._senderMap.get(oldTrack) @@ -342,9 +331,7 @@ class Peer extends stream.Duplex { * @param {MediaStreamTrack} track * @param {MediaStream} stream */ - removeTrack (track, stream) { - if (this.destroying) return - if (this.destroyed) throw errCode(new Error('cannot removeTrack after peer is destroyed'), 'ERR_DESTROYED') + removeTrack(track, stream) { this._debug('removeSender()') const submap = this._senderMap.get(track) @@ -369,9 +356,7 @@ class Peer extends stream.Duplex { * Remove a MediaStream from the connection. * @param {MediaStream} stream */ - removeStream (stream) { - if (this.destroying) return - if (this.destroyed) throw errCode(new Error('cannot removeStream after peer is destroyed'), 'ERR_DESTROYED') + removeStream(stream) { this._debug('removeSenders()') stream.getTracks().forEach(track => { @@ -379,7 +364,7 @@ class Peer extends stream.Duplex { }) } - _needsNegotiation () { + _needsNegotiation() { this._debug('_needsNegotiation') if (this._batchedNegotiation) return // batch synchronous renegotiations this._batchedNegotiation = true @@ -395,10 +380,7 @@ class Peer extends stream.Duplex { }) } - negotiate () { - if (this.destroying) return - if (this.destroyed) throw errCode(new Error('cannot negotiate after peer is destroyed'), 'ERR_DESTROYED') - + negotiate() { if (this.initiator) { if (this._isNegotiating) { this._queuedNegotiation = true @@ -427,11 +409,11 @@ class Peer extends stream.Duplex { // TODO: Delete this method once readable-stream is updated to contain a default // implementation of destroy() that automatically calls _destroy() // See: https://github.com/nodejs/readable-stream/issues/283 - destroy (err) { - this._destroy(err, () => {}) + destroy(err) { + this._destroy(err, () => { }) } - _destroy (err, cb) { + _destroy(err, cb) { if (this.destroyed || this.destroying) return this.destroying = true @@ -469,7 +451,7 @@ class Peer extends stream.Duplex { if (this._channel) { try { this._channel.close() - } catch (err) {} + } catch (err) { } // allow events concurrent with destruction to be handled this._channel.onmessage = null @@ -480,7 +462,7 @@ class Peer extends stream.Duplex { if (this._pc) { try { this._pc.close() - } catch (err) {} + } catch (err) { } // allow events concurrent with destruction to be handled this._pc.oniceconnectionstatechange = null @@ -499,7 +481,7 @@ class Peer extends stream.Duplex { }) } - _setupData (event) { + _setupData(event) { if (!event.channel) { // In some situations `pc.createDataChannel()` returns `undefined` (in wrtc), // which is invalid behavior. Handle it gracefully. @@ -545,9 +527,9 @@ class Peer extends stream.Duplex { }, CHANNEL_CLOSING_TIMEOUT) } - _read () {} + _read() { } - _write (chunk, encoding, cb) { + _write(chunk, encoding, cb) { if (this.destroyed) return cb(errCode(new Error('cannot write after peer is destroyed'), 'ERR_DATA_CHANNEL')) if (this._connected) { @@ -571,7 +553,7 @@ class Peer extends stream.Duplex { // When stream finishes writing, close socket. Half open connections are not // supported. - _onFinish () { + _onFinish() { if (this.destroyed) return // Wait a bit before destroying so the socket flushes. @@ -587,7 +569,7 @@ class Peer extends stream.Duplex { } } - _startIceCompleteTimeout () { + _startIceCompleteTimeout() { if (this.destroyed) return if (this._iceCompleteTimer) return this._debug('started iceComplete timeout') @@ -601,7 +583,7 @@ class Peer extends stream.Duplex { }, this.iceCompleteTimeout) } - _createOffer () { + _createOffer() { if (this.destroyed) return this._pc.createOffer(this.offerOptions) @@ -640,7 +622,7 @@ class Peer extends stream.Duplex { }) } - _requestMissingTransceivers () { + _requestMissingTransceivers() { if (this._pc.getTransceivers) { this._pc.getTransceivers().forEach(transceiver => { if (!transceiver.mid && transceiver.sender.track && !transceiver.requested) { @@ -651,7 +633,7 @@ class Peer extends stream.Duplex { } } - _createAnswer () { + _createAnswer() { if (this.destroyed) return this._pc.createAnswer(this.answerOptions) @@ -690,14 +672,14 @@ class Peer extends stream.Duplex { }) } - _onConnectionStateChange () { + _onConnectionStateChange() { if (this.destroyed) return if (this._pc.connectionState === 'failed') { this.destroy(errCode(new Error('Connection failed.'), 'ERR_CONNECTION_FAILURE')) } } - _onIceStateChange () { + _onIceStateChange() { if (this.destroyed) return const iceConnectionState = this._pc.iceConnectionState const iceGatheringState = this._pc.iceGatheringState @@ -721,7 +703,7 @@ class Peer extends stream.Duplex { } } - getStats (cb) { + getStats(cb) { // statreports can come with a value array instead of properties const flattenValues = report => { if (Object.prototype.toString.call(report.values) === '[object Array]') { @@ -743,7 +725,7 @@ class Peer extends stream.Duplex { cb(null, reports) }, err => cb(err)) - // Single-parameter callback-based getStats() (non-standard) + // Single-parameter callback-based getStats() (non-standard) } else if (this._pc.getStats.length > 0) { this._pc.getStats(res => { // If we destroy connection in `connect` callback this code might happen to run when actual connection is already closed @@ -763,14 +745,14 @@ class Peer extends stream.Duplex { cb(null, reports) }, err => cb(err)) - // Unknown browser, skip getStats() since it's anyone's guess which style of - // getStats() they implement. + // Unknown browser, skip getStats() since it's anyone's guess which style of + // getStats() they implement. } else { cb(null, []) } } - _maybeReady () { + _maybeReady() { this._debug('maybeReady pc %s channel %s', this._pcReady, this._channelReady) if (this._connected || this._connecting || !this._pcReady || !this._channelReady) return @@ -910,14 +892,14 @@ class Peer extends stream.Duplex { findCandidatePair() } - _onInterval () { + _onInterval() { if (!this._cb || !this._channel || this._channel.bufferedAmount > MAX_BUFFERED_AMOUNT) { return } this._onChannelBufferedAmountLow() } - _onSignalingStateChange () { + _onSignalingStateChange() { if (this.destroyed) return if (this._pc.signalingState === 'stable') { @@ -945,7 +927,7 @@ class Peer extends stream.Duplex { this.emit('signalingStateChange', this._pc.signalingState) } - _onIceCandidate (event) { + _onIceCandidate(event) { if (this.destroyed) return if (event.candidate && this.trickle) { this.emit('signal', { @@ -966,14 +948,14 @@ class Peer extends stream.Duplex { } } - _onChannelMessage (event) { + _onChannelMessage(event) { if (this.destroyed) return let data = event.data if (data instanceof ArrayBuffer) data = Buffer.from(data) this.push(data) } - _onChannelBufferedAmountLow () { + _onChannelBufferedAmountLow() { if (this.destroyed || !this._cb) return this._debug('ending backpressure: bufferedAmount %d', this._channel.bufferedAmount) const cb = this._cb @@ -981,20 +963,20 @@ class Peer extends stream.Duplex { cb(null) } - _onChannelOpen () { + _onChannelOpen() { if (this._connected || this.destroyed) return this._debug('on channel open') this._channelReady = true this._maybeReady() } - _onChannelClose () { + _onChannelClose() { if (this.destroyed) return this._debug('on channel close') this.destroy() } - _onTrack (event) { + _onTrack(event) { if (this.destroyed) return event.streams.forEach(eventStream => { @@ -1018,7 +1000,7 @@ class Peer extends stream.Duplex { }) } - _debug () { + _debug() { const args = [].slice.call(arguments) args[0] = '[' + this._id + '] ' + args[0] debug.apply(null, args) diff --git a/package.json b/package.json index 740778d3..eee1c5c4 100644 --- a/package.json +++ b/package.json @@ -1,7 +1,7 @@ { "name": "simple-peer", "description": "Simple one-to-one WebRTC video/voice and data channels", - "version": "9.9.4", + "version": "9.10.0", "author": { "name": "Feross Aboukhadijeh", "email": "feross@feross.org", From bf23c34fa92cdcc771cef1befb2828739629a421 Mon Sep 17 00:00:00 2001 From: Zachary Hueras Date: Mon, 14 Dec 2020 03:48:51 -0500 Subject: [PATCH 13/30] Listen to iceGatheringState for completed --- index.js | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/index.js b/index.js index aefd186f..9c6cbc0a 100644 --- a/index.js +++ b/index.js @@ -691,7 +691,7 @@ class Peer extends stream.Duplex { ) this.emit('iceStateChange', iceConnectionState, iceGatheringState) - if (iceConnectionState === 'connected' || iceConnectionState === 'completed') { + if (iceConnectionState === 'connected' || iceGatheringState === 'completed') { this._pcReady = true this._maybeReady() } From e28a270ca0297c2198a36a8f10e6e88b29e4ccd5 Mon Sep 17 00:00:00 2001 From: Zachary Hueras Date: Mon, 14 Dec 2020 03:54:25 -0500 Subject: [PATCH 14/30] Attempt to support manual ice restarts --- index.js | 35 +++++++++++++++++++++++++++++------ 1 file changed, 29 insertions(+), 6 deletions(-) diff --git a/index.js b/index.js index 9c6cbc0a..4dadd112 100644 --- a/index.js +++ b/index.js @@ -51,6 +51,7 @@ class Peer extends stream.Duplex { this.trickle = opts.trickle !== undefined ? opts.trickle : true this.allowHalfTrickle = opts.allowHalfTrickle !== undefined ? opts.allowHalfTrickle : false this.iceCompleteTimeout = opts.iceCompleteTimeout || ICECOMPLETE_TIMEOUT + this.iceRestartEnabled = 'iceRestartEnabled' in opts ? opts.iceRestartEnabled : true this.destroyed = false this.destroying = false @@ -380,7 +381,7 @@ class Peer extends stream.Duplex { }) } - negotiate() { + negotiate (restart = false) { if (this.initiator) { if (this._isNegotiating) { this._queuedNegotiation = true @@ -388,9 +389,10 @@ class Peer extends stream.Duplex { } else { this._debug('start negotiation') setTimeout(() => { // HACK: Chrome crashes if we immediately call createOffer - this._createOffer() + this._createOffer(restart) }, 0) } + this._isRestarting = restart } else { if (this._isNegotiating) { this._queuedNegotiation = true @@ -406,6 +408,16 @@ class Peer extends stream.Duplex { this._isNegotiating = true } + restart () { + if (this.initiator) { + if (this._isRestarting) { + this._debug('already restarting, ignoring') + } else { + this._pc.restartIce(); + } + } + } + // TODO: Delete this method once readable-stream is updated to contain a default // implementation of destroy() that automatically calls _destroy() // See: https://github.com/nodejs/readable-stream/issues/283 @@ -674,8 +686,10 @@ class Peer extends stream.Duplex { _onConnectionStateChange() { if (this.destroyed) return - if (this._pc.connectionState === 'failed') { + if (this._pc.connectionState === 'failed' && !this.iceRestartEnabled) { this.destroy(errCode(new Error('Connection failed.'), 'ERR_CONNECTION_FAILURE')) + } else if (this._pc.connectionState === 'failed' && this.iceRestartEnabled) { + this._pc.restartIce() } } @@ -692,10 +706,19 @@ class Peer extends stream.Duplex { this.emit('iceStateChange', iceConnectionState, iceGatheringState) if (iceConnectionState === 'connected' || iceGatheringState === 'completed') { + this._isRestarting = false this._pcReady = true this._maybeReady() } - if (iceConnectionState === 'failed') { + + if (iceConnectionState === 'failed' && this.iceRestartEnabled) { + if (this.initiator && !this._isRestarting) { + this._isNegotiating = false + this._isRestarting = true + + this._needsNegotiation(true) + } + } else if (iceConnectionState === 'failed' && !this.iceRestartEnabled) { this.destroy(errCode(new Error('Ice connection failed.'), 'ERR_ICE_CONNECTION_FAILURE')) } if (iceConnectionState === 'closed') { @@ -752,9 +775,9 @@ class Peer extends stream.Duplex { } } - _maybeReady() { + _maybeReady () { this._debug('maybeReady pc %s channel %s', this._pcReady, this._channelReady) - if (this._connected || this._connecting || !this._pcReady || !this._channelReady) return + if (((this._connected || this._connecting) && !this._isRestarting) || !this._pcReady || !this._channelReady) return this._connecting = true From 794da9aedec1f0897649401903a6c1cfed5604bc Mon Sep 17 00:00:00 2001 From: Zachary Hueras Date: Mon, 14 Dec 2020 04:01:20 -0500 Subject: [PATCH 15/30] Basic test case for ICE restarts that still fails Run standard --fix --- index.js | 78 ++++++++++++++++++++++----------------------- test/negotiation.js | 35 ++++++++++++++++++++ 2 files changed, 74 insertions(+), 39 deletions(-) diff --git a/index.js b/index.js index 4dadd112..320b21dc 100644 --- a/index.js +++ b/index.js @@ -12,11 +12,11 @@ const ICECOMPLETE_TIMEOUT = 5 * 1000 const CHANNEL_CLOSING_TIMEOUT = 5 * 1000 // HACK: Filter trickle lines when trickle is disabled #354 -function filterTrickle(sdp) { +function filterTrickle (sdp) { return sdp.replace(/a=ice-options:trickle\s\n/g, '') } -function warn(message) { +function warn (message) { console.warn(message) } @@ -26,7 +26,7 @@ function warn(message) { * @param {Object} opts */ class Peer extends stream.Duplex { - constructor(opts) { + constructor (opts) { opts = Object.assign({ allowHalfOpen: false }, opts) @@ -166,21 +166,21 @@ class Peer extends stream.Duplex { this.once('finish', this._onFinishBound) } - get bufferSize() { + get bufferSize () { return (this._channel && this._channel.bufferedAmount) || 0 } // HACK: it's possible channel.readyState is "closing" before peer.destroy() fires // https://bugs.chromium.org/p/chromium/issues/detail?id=882743 - get connected() { + get connected () { return (this._connected && this._channel.readyState === 'open') } - address() { + address () { return { port: this.localPort, family: this.localFamily, address: this.localAddress } } - signal(data) { + signal (data) { if (this.destroyed) throw errCode(new Error('cannot signal after peer is destroyed'), 'ERR_SIGNALING') if (typeof data === 'string') { try { @@ -227,7 +227,7 @@ class Peer extends stream.Duplex { } } - _addIceCandidate(candidate) { + _addIceCandidate (candidate) { const iceCandidateObj = new this._wrtc.RTCIceCandidate(candidate) this._pc.addIceCandidate(iceCandidateObj) .catch(err => { @@ -243,7 +243,7 @@ class Peer extends stream.Duplex { * Send text/binary data to the remote peer. * @param {ArrayBufferView|ArrayBuffer|Buffer|string|Blob} chunk */ - send(chunk) { + send (chunk) { this._channel.send(chunk) } @@ -252,7 +252,7 @@ class Peer extends stream.Duplex { * @param {String} kind * @param {Object} init */ - addTransceiver(kind, init) { + addTransceiver (kind, init) { this._debug('addTransceiver()') if (this.initiator) { @@ -274,7 +274,7 @@ class Peer extends stream.Duplex { * Add a MediaStream to the connection. * @param {MediaStream} stream */ - addStream(stream) { + addStream (stream) { this._debug('addStream()') stream.getTracks().forEach(track => { @@ -287,7 +287,7 @@ class Peer extends stream.Duplex { * @param {MediaStreamTrack} track * @param {MediaStream} stream */ - addTrack(track, stream) { + addTrack (track, stream) { this._debug('addTrack()') const submap = this._senderMap.get(track) || new Map() // nested Maps map [track, stream] to sender @@ -310,7 +310,7 @@ class Peer extends stream.Duplex { * @param {MediaStreamTrack} newTrack * @param {MediaStream} stream */ - replaceTrack(oldTrack, newTrack, stream) { + replaceTrack (oldTrack, newTrack, stream) { this._debug('replaceTrack()') const submap = this._senderMap.get(oldTrack) @@ -332,7 +332,7 @@ class Peer extends stream.Duplex { * @param {MediaStreamTrack} track * @param {MediaStream} stream */ - removeTrack(track, stream) { + removeTrack (track, stream) { this._debug('removeSender()') const submap = this._senderMap.get(track) @@ -357,7 +357,7 @@ class Peer extends stream.Duplex { * Remove a MediaStream from the connection. * @param {MediaStream} stream */ - removeStream(stream) { + removeStream (stream) { this._debug('removeSenders()') stream.getTracks().forEach(track => { @@ -365,7 +365,7 @@ class Peer extends stream.Duplex { }) } - _needsNegotiation() { + _needsNegotiation () { this._debug('_needsNegotiation') if (this._batchedNegotiation) return // batch synchronous renegotiations this._batchedNegotiation = true @@ -413,7 +413,7 @@ class Peer extends stream.Duplex { if (this._isRestarting) { this._debug('already restarting, ignoring') } else { - this._pc.restartIce(); + this._pc.restartIce() } } } @@ -421,11 +421,11 @@ class Peer extends stream.Duplex { // TODO: Delete this method once readable-stream is updated to contain a default // implementation of destroy() that automatically calls _destroy() // See: https://github.com/nodejs/readable-stream/issues/283 - destroy(err) { + destroy (err) { this._destroy(err, () => { }) } - _destroy(err, cb) { + _destroy (err, cb) { if (this.destroyed || this.destroying) return this.destroying = true @@ -493,7 +493,7 @@ class Peer extends stream.Duplex { }) } - _setupData(event) { + _setupData (event) { if (!event.channel) { // In some situations `pc.createDataChannel()` returns `undefined` (in wrtc), // which is invalid behavior. Handle it gracefully. @@ -539,9 +539,9 @@ class Peer extends stream.Duplex { }, CHANNEL_CLOSING_TIMEOUT) } - _read() { } + _read () { } - _write(chunk, encoding, cb) { + _write (chunk, encoding, cb) { if (this.destroyed) return cb(errCode(new Error('cannot write after peer is destroyed'), 'ERR_DATA_CHANNEL')) if (this._connected) { @@ -565,7 +565,7 @@ class Peer extends stream.Duplex { // When stream finishes writing, close socket. Half open connections are not // supported. - _onFinish() { + _onFinish () { if (this.destroyed) return // Wait a bit before destroying so the socket flushes. @@ -581,7 +581,7 @@ class Peer extends stream.Duplex { } } - _startIceCompleteTimeout() { + _startIceCompleteTimeout () { if (this.destroyed) return if (this._iceCompleteTimer) return this._debug('started iceComplete timeout') @@ -595,7 +595,7 @@ class Peer extends stream.Duplex { }, this.iceCompleteTimeout) } - _createOffer() { + _createOffer () { if (this.destroyed) return this._pc.createOffer(this.offerOptions) @@ -634,7 +634,7 @@ class Peer extends stream.Duplex { }) } - _requestMissingTransceivers() { + _requestMissingTransceivers () { if (this._pc.getTransceivers) { this._pc.getTransceivers().forEach(transceiver => { if (!transceiver.mid && transceiver.sender.track && !transceiver.requested) { @@ -645,7 +645,7 @@ class Peer extends stream.Duplex { } } - _createAnswer() { + _createAnswer () { if (this.destroyed) return this._pc.createAnswer(this.answerOptions) @@ -684,7 +684,7 @@ class Peer extends stream.Duplex { }) } - _onConnectionStateChange() { + _onConnectionStateChange () { if (this.destroyed) return if (this._pc.connectionState === 'failed' && !this.iceRestartEnabled) { this.destroy(errCode(new Error('Connection failed.'), 'ERR_CONNECTION_FAILURE')) @@ -693,7 +693,7 @@ class Peer extends stream.Duplex { } } - _onIceStateChange() { + _onIceStateChange () { if (this.destroyed) return const iceConnectionState = this._pc.iceConnectionState const iceGatheringState = this._pc.iceGatheringState @@ -726,7 +726,7 @@ class Peer extends stream.Duplex { } } - getStats(cb) { + getStats (cb) { // statreports can come with a value array instead of properties const flattenValues = report => { if (Object.prototype.toString.call(report.values) === '[object Array]') { @@ -915,14 +915,14 @@ class Peer extends stream.Duplex { findCandidatePair() } - _onInterval() { + _onInterval () { if (!this._cb || !this._channel || this._channel.bufferedAmount > MAX_BUFFERED_AMOUNT) { return } this._onChannelBufferedAmountLow() } - _onSignalingStateChange() { + _onSignalingStateChange () { if (this.destroyed) return if (this._pc.signalingState === 'stable') { @@ -950,7 +950,7 @@ class Peer extends stream.Duplex { this.emit('signalingStateChange', this._pc.signalingState) } - _onIceCandidate(event) { + _onIceCandidate (event) { if (this.destroyed) return if (event.candidate && this.trickle) { this.emit('signal', { @@ -971,14 +971,14 @@ class Peer extends stream.Duplex { } } - _onChannelMessage(event) { + _onChannelMessage (event) { if (this.destroyed) return let data = event.data if (data instanceof ArrayBuffer) data = Buffer.from(data) this.push(data) } - _onChannelBufferedAmountLow() { + _onChannelBufferedAmountLow () { if (this.destroyed || !this._cb) return this._debug('ending backpressure: bufferedAmount %d', this._channel.bufferedAmount) const cb = this._cb @@ -986,20 +986,20 @@ class Peer extends stream.Duplex { cb(null) } - _onChannelOpen() { + _onChannelOpen () { if (this._connected || this.destroyed) return this._debug('on channel open') this._channelReady = true this._maybeReady() } - _onChannelClose() { + _onChannelClose () { if (this.destroyed) return this._debug('on channel close') this.destroy() } - _onTrack(event) { + _onTrack (event) { if (this.destroyed) return event.streams.forEach(eventStream => { @@ -1023,7 +1023,7 @@ class Peer extends stream.Duplex { }) } - _debug() { + _debug () { const args = [].slice.call(arguments) args[0] = '[' + this._id + '] ' + args[0] debug.apply(null, args) diff --git a/test/negotiation.js b/test/negotiation.js index a6c4a879..5b16add5 100644 --- a/test/negotiation.js +++ b/test/negotiation.js @@ -204,3 +204,38 @@ test('negotiated channels', function (t) { t.pass('peer2 connect') }) }) + +test('renegotiation after restart', function (t) { + t.plan(4) + + const peer1 = new Peer({ config, initiator: true, wrtc: common.wrtc }) + const peer2 = new Peer({ config, wrtc: common.wrtc }) + + peer1.on('signal', function (data) { + if (!peer2.destroyed) peer2.signal(data) + }) + peer2.on('signal', function (data) { + if (!peer1.destroyed) peer1.signal(data) + }) + + peer1.on('connect', function () { + peer1.addStream(common.getMediaStream()) + }) + peer2.on('connect', function () { + peer2.addStream(common.getMediaStream()) + }) + + peer1.on('stream', function () { + t.pass('got peer1 stream') + }) + + peer2.on('stream', function () { + t.pass('got peer2 stream') + peer1.restart() + }) + + let tracks = 1 + peer2.on('track', function () { + t.pass(`got peer2 track ${tracks++}`) + }) +}) From 38188816651fef34e1c8c1219a3b2060563e9677 Mon Sep 17 00:00:00 2001 From: Zachary Hueras Date: Sat, 5 Mar 2022 16:10:24 -0500 Subject: [PATCH 16/30] feature/ice-restart: fix needsNegotiation usage --- index.js | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/index.js b/index.js index 320b21dc..89368df1 100644 --- a/index.js +++ b/index.js @@ -373,7 +373,7 @@ class Peer extends stream.Duplex { this._batchedNegotiation = false if (this.initiator || !this._firstNegotiation) { this._debug('starting batched negotiation') - this.negotiate() + this.negotiate(this._isRestarting) } else { this._debug('non-initiator initial negotiation request discarded') } @@ -716,7 +716,7 @@ class Peer extends stream.Duplex { this._isNegotiating = false this._isRestarting = true - this._needsNegotiation(true) + this._needsNegotiation() } } else if (iceConnectionState === 'failed' && !this.iceRestartEnabled) { this.destroy(errCode(new Error('Ice connection failed.'), 'ERR_ICE_CONNECTION_FAILURE')) From 294d418d7491ea266f374f81dfa24f52cb7a2db6 Mon Sep 17 00:00:00 2001 From: Kyle Worcester-Moore <16263357+KW-M@users.noreply.github.com> Date: Sat, 7 Sep 2024 10:44:40 -0700 Subject: [PATCH 17/30] rename index.js to full.js to facilitate merging --- full.js | 1046 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ index.js | 1046 ------------------------------------------------------ 2 files changed, 1046 insertions(+), 1046 deletions(-) create mode 100644 full.js diff --git a/full.js b/full.js new file mode 100644 index 00000000..eecf1394 --- /dev/null +++ b/full.js @@ -0,0 +1,1046 @@ +/*! simple-peer. MIT License. Feross Aboukhadijeh */ +var debug = require('debug')('simple-peer') +var getBrowserRTC = require('get-browser-rtc') +var randombytes = require('randombytes') +var stream = require('readable-stream') +var queueMicrotask = require('queue-microtask') // TODO: remove when Node 10 is not supported + +var MAX_BUFFERED_AMOUNT = 64 * 1024 +var ICECOMPLETE_TIMEOUT = 5 * 1000 +var CHANNEL_CLOSING_TIMEOUT = 5 * 1000 +var ICEFAILURE_RECOVERY_TIMEOUT = 5 * 1000 + +// HACK: Filter trickle lines when trickle is disabled #354 +function filterTrickle (sdp) { + return sdp.replace(/a=ice-options:trickle\s\n/g, '') +} + +function makeError (err, code) { + if (typeof err === 'string') err = new Error(err) + if (err.error instanceof Error) err = err.error + err.code = code + return err +} + +function warn (message) { + console.warn(message) +} + +/** + * WebRTC peer connection. Same API as node core `net.Socket`, plus a few extra methods. + * Duplex stream. + * @param {Object} opts + */ +class Peer extends stream.Duplex { + constructor (opts) { + opts = Object.assign({ + allowHalfOpen: false + }, opts) + + super(opts) + + this._id = randombytes(4).toString('hex').slice(0, 7) + this._debug('new peer %o', opts) + + this.channelName = opts.initiator + ? opts.channelName || randombytes(20).toString('hex') + : null + + this.initiator = opts.initiator || false + this.channelConfig = opts.channelConfig || Peer.channelConfig + this.negotiated = this.channelConfig.negotiated + this.config = Object.assign({}, Peer.config, opts.config) + this.offerOptions = opts.offerOptions || {} + this.answerOptions = opts.answerOptions || {} + this.sdpTransform = opts.sdpTransform || (sdp => sdp) + this.streams = opts.streams || (opts.stream ? [opts.stream] : []) // support old "stream" option + this.trickle = opts.trickle !== undefined ? opts.trickle : true + this.allowHalfTrickle = opts.allowHalfTrickle !== undefined ? opts.allowHalfTrickle : false + this.iceCompleteTimeout = opts.iceCompleteTimeout || ICECOMPLETE_TIMEOUT + this.iceFailureRecoveryTimeout = opts.iceFailureRecoveryTimeout || ICEFAILURE_RECOVERY_TIMEOUT + + this.destroyed = false + this._connected = false + + this.remoteAddress = undefined + this.remoteFamily = undefined + this.remotePort = undefined + this.localAddress = undefined + this.localFamily = undefined + this.localPort = undefined + + this._wrtc = (opts.wrtc && typeof opts.wrtc === 'object') + ? opts.wrtc + : getBrowserRTC() + + if (!this._wrtc) { + if (typeof window === 'undefined') { + throw makeError('No WebRTC support: Specify `opts.wrtc` option in this environment', 'ERR_WEBRTC_SUPPORT') + } else { + throw makeError('No WebRTC support: Not a supported browser', 'ERR_WEBRTC_SUPPORT') + } + } + + this._pcReady = false + this._channelReady = false + this._iceComplete = false // ice candidate trickle done (got null candidate) + this._iceCompleteTimer = null // send an offer/answer anyway after some timeout + this._channel = null + this._pendingCandidates = [] + + // Failed recovery + this._iceFailureRecoveryTimer = null // how long to wait for recovery from failed state + + this._isNegotiating = this.negotiated ? false : !this.initiator // is this peer waiting for negotiation to complete? + this._isRestartingIce = false // turned true while restarting and false when connected + this._batchedNegotiation = false // batch synchronous negotiations + this._queuedNegotiation = false // is there a queued negotiation request? + this._sendersAwaitingStable = [] + this._senderMap = new Map() + this._firstStable = true + this._closingInterval = null + + this._remoteTracks = [] + this._remoteStreams = [] + + this._chunk = null + this._cb = null + this._interval = null + + try { + this._pc = new (this._wrtc.RTCPeerConnection)(this.config) + } catch (err) { + queueMicrotask(() => this.destroy(makeError(err, 'ERR_PC_CONSTRUCTOR'))) + return + } + + // We prefer feature detection whenever possible, but sometimes that's not + // possible for certain implementations. + this._isReactNativeWebrtc = typeof this._pc._peerConnectionId === 'number' + + this._pc.oniceconnectionstatechange = () => { + this._onIceStateChange() + } + this._pc.onicegatheringstatechange = () => { + this._onIceStateChange() + } + this._pc.onconnectionstatechange = () => { + this._onConnectionStateChange() + } + this._pc.onsignalingstatechange = () => { + this._onSignalingStateChange() + } + this._pc.onicecandidate = event => { + this._onIceCandidate(event) + } + + // Other spec events, unused by this implementation: + // - onconnectionstatechange + // - onicecandidateerror + // - onfingerprintfailure + // - onnegotiationneeded + + if (this.initiator || this.negotiated) { + this._setupData({ + channel: this._pc.createDataChannel(this.channelName, this.channelConfig) + }) + } else { + this._pc.ondatachannel = event => { + this._setupData(event) + } + } + + if (this.streams) { + this.streams.forEach(stream => { + this.addStream(stream, false) + }) + } + this._pc.ontrack = event => { + this._onTrack(event) + } + + if (this.initiator) { + this._needsNegotiation() + } + + this._onFinishBound = () => { + this._onFinish() + } + this.once('finish', this._onFinishBound) + } + + get bufferSize () { + return (this._channel && this._channel.bufferedAmount) || 0 + } + + // HACK: it's possible channel.readyState is "closing" before peer.destroy() fires + // https://bugs.chromium.org/p/chromium/issues/detail?id=882743 + get connected () { + return (this._connected && this._channel.readyState === 'open') + } + + address () { + return { port: this.localPort, family: this.localFamily, address: this.localAddress } + } + + signal (data) { + if (this.destroyed) throw makeError('cannot signal after peer is destroyed', 'ERR_SIGNALING') + if (typeof data === 'string') { + try { + data = JSON.parse(data) + } catch (err) { + data = {} + } + } + this._debug('signal()') + + if (data.renegotiate && this.initiator) { + this._debug('got request to renegotiate') + this._needsNegotiation() + } + if (data.transceiverRequest && this.initiator) { + this._debug('got request for transceiver') + this.addTransceiver(data.transceiverRequest.kind, data.transceiverRequest.init) + } + if (data.candidate) { + if (this._pc.remoteDescription && this._pc.remoteDescription.type) { + this._addIceCandidate(data.candidate) + } else { + this._pendingCandidates.push(data.candidate) + } + } + if (data.sdp) { + this._pc.setRemoteDescription(new (this._wrtc.RTCSessionDescription)(data)) + .then(() => { + if (this.destroyed) return + + this._pendingCandidates.forEach(candidate => { + this._addIceCandidate(candidate) + }) + this._pendingCandidates = [] + + if (this._pc.remoteDescription.type === 'offer') this._createAnswer() + }) + .catch(err => { + this.destroy(makeError(err, 'ERR_SET_REMOTE_DESCRIPTION')) + }) + } + if (!data.sdp && !data.candidate && !data.renegotiate && !data.transceiverRequest) { + this.destroy(makeError('signal() called with invalid signal data', 'ERR_SIGNALING')) + } + } + + _addIceCandidate (candidate) { + var iceCandidateObj = new this._wrtc.RTCIceCandidate(candidate) + this._pc.addIceCandidate(iceCandidateObj) + .catch(err => { + if (!iceCandidateObj.address || iceCandidateObj.address.endsWith('.local')) { + warn('Ignoring unsupported ICE candidate.') + } else { + this.destroy(makeError(err, 'ERR_ADD_ICE_CANDIDATE')) + } + }) + } + + /** + * Send text/binary data to the remote peer. + * @param {ArrayBufferView|ArrayBuffer|Buffer|string|Blob} chunk + */ + send (chunk) { + this._channel.send(chunk) + } + + /** + * Add a Transceiver to the connection. + * @param {String} kind + * @param {Object} init + */ + addTransceiver (kind, init) { + this._debug('addTransceiver()') + + if (this.initiator) { + try { + this._pc.addTransceiver(kind, init) + this._needsNegotiation() + } catch (err) { + this.destroy(makeError(err, 'ERR_ADD_TRANSCEIVER')) + } + } else { + this.emit('signal', { // request initiator to renegotiate + type: 'transceiverRequest', + transceiverRequest: { kind, init } + }) + } + } + + /** + * Add a MediaStream to the connection. + * @param {MediaStream} stream + */ + addStream (stream, triggerNegotiate = true) { + this._debug('addStream()') + + stream.getTracks().forEach(track => { + this.addTrack(track, stream, triggerNegotiate) + }) + } + + /** + * Add a MediaStreamTrack to the connection. + * @param {MediaStreamTrack} track + * @param {MediaStream} stream + */ + addTrack (track, stream, triggerNegotiate = true) { + this._debug('addTrack()') + + var submap = this._senderMap.get(track) || new Map() // nested Maps map [track, stream] to sender + var sender = submap.get(stream) + if (!sender) { + sender = this._pc.addTrack(track, stream) + submap.set(stream, sender) + this._senderMap.set(track, submap) + if (triggerNegotiate) this._needsNegotiation() + } else if (sender.removed) { + throw makeError('Track has been removed. You should enable/disable tracks that you want to re-add.', 'ERR_SENDER_REMOVED') + } else { + throw makeError('Track has already been added to that stream.', 'ERR_SENDER_ALREADY_ADDED') + } + } + + /** + * Replace a MediaStreamTrack by another in the connection. + * @param {MediaStreamTrack} oldTrack + * @param {MediaStreamTrack} newTrack + * @param {MediaStream} stream + */ + replaceTrack (oldTrack, newTrack, stream) { + this._debug('replaceTrack()') + + var submap = this._senderMap.get(oldTrack) + var sender = submap ? submap.get(stream) : null + if (!sender) { + throw makeError('Cannot replace track that was never added.', 'ERR_TRACK_NOT_ADDED') + } + if (newTrack) this._senderMap.set(newTrack, submap) + + if (sender.replaceTrack != null) { + sender.replaceTrack(newTrack) + } else { + this.destroy(makeError('replaceTrack is not supported in this browser', 'ERR_UNSUPPORTED_REPLACETRACK')) + } + } + + /** + * Remove a MediaStreamTrack from the connection. + * @param {MediaStreamTrack} track + * @param {MediaStream} stream + */ + removeTrack (track, stream) { + this._debug('removeSender()') + + var submap = this._senderMap.get(track) + var sender = submap ? submap.get(stream) : null + if (!sender) { + throw makeError('Cannot remove track that was never added.', 'ERR_TRACK_NOT_ADDED') + } + try { + sender.removed = true + this._pc.removeTrack(sender) + } catch (err) { + if (err.name === 'NS_ERROR_UNEXPECTED') { + this._sendersAwaitingStable.push(sender) // HACK: Firefox must wait until (signalingState === stable) https://bugzilla.mozilla.org/show_bug.cgi?id=1133874 + } else { + this.destroy(makeError(err, 'ERR_REMOVE_TRACK')) + } + } + this._needsNegotiation() + } + + /** + * Remove a MediaStream from the connection. + * @param {MediaStream} stream + */ + removeStream (stream) { + this._debug('removeSenders()') + + stream.getTracks().forEach(track => { + this.removeTrack(track, stream) + }) + } + + _needsNegotiation () { + this._debug('_needsNegotiation') + if (this._batchedNegotiation) return // batch synchronous renegotiations + this._batchedNegotiation = true + queueMicrotask(() => { + this._batchedNegotiation = false + this._debug('starting batched negotiation') + this.negotiate() + }) + } + + negotiate () { + this._debug('negotiate') + this.emit('negotiate') + + if (this.initiator) { + if (this._isNegotiating) { + this._queuedNegotiation = true + this._debug('already negotiating, queueing') + } else { + this._debug('start negotiation') + setTimeout(() => { // HACK: Chrome crashes if we immediately call createOffer + this._createOffer() + }, 0) + } + } else { + if (this._isNegotiating) { + this._queuedNegotiation = true + this._debug('already negotiating, queueing') + } else { + this._debug('requesting negotiation from initiator') + this.emit('signal', { // request initiator to renegotiate + type: 'renegotiate', + renegotiate: true + }) + } + } + this._isNegotiating = true + } + + // TODO: Delete this method once readable-stream is updated to contain a default + // implementation of destroy() that automatically calls _destroy() + // See: https://github.com/nodejs/readable-stream/issues/283 + destroy (err) { + this._destroy(err, () => {}) + } + + _destroy (err, cb) { + if (this.destroyed) return + + this._debug('destroy (error: %s)', err && (err.message || err)) + + this.readable = this.writable = false + + if (!this._readableState.ended) this.push(null) + if (!this._writableState.finished) this.end() + + this.destroyed = true + this._connected = false + this._pcReady = false + this._channelReady = false + this._remoteTracks = null + this._remoteStreams = null + this._senderMap = null + + clearInterval(this._closingInterval) + this._closingInterval = null + + clearInterval(this._interval) + this._interval = null + this._chunk = null + this._cb = null + + if (this._onFinishBound) this.removeListener('finish', this._onFinishBound) + this._onFinishBound = null + + if (this._channel) { + try { + this._channel.close() + } catch (err) {} + + this._channel.onmessage = null + this._channel.onopen = null + this._channel.onclose = null + this._channel.onerror = null + } + if (this._pc) { + try { + this._pc.close() + } catch (err) {} + + this._pc.oniceconnectionstatechange = null + this._pc.onicegatheringstatechange = null + this._pc.onsignalingstatechange = null + this._pc.onicecandidate = null + this._pc.ontrack = null + this._pc.ondatachannel = null + } + this._pc = null + this._channel = null + + if (err) this.emit('error', err) + this.emit('close') + cb() + } + + _setupData (event) { + if (!event.channel) { + // In some situations `pc.createDataChannel()` returns `undefined` (in wrtc), + // which is invalid behavior. Handle it gracefully. + // See: https://github.com/feross/simple-peer/issues/163 + return this.destroy(makeError('Data channel event is missing `channel` property', 'ERR_DATA_CHANNEL')) + } + + this._channel = event.channel + this._channel.binaryType = 'arraybuffer' + + if (typeof this._channel.bufferedAmountLowThreshold === 'number') { + this._channel.bufferedAmountLowThreshold = MAX_BUFFERED_AMOUNT + } + + this.channelName = this._channel.label + + this._channel.onmessage = event => { + this._onChannelMessage(event) + } + this._channel.onbufferedamountlow = () => { + this._onChannelBufferedAmountLow() + } + this._channel.onopen = () => { + this._onChannelOpen() + } + this._channel.onclose = () => { + this._onChannelClose() + } + this._channel.onerror = err => { + this.destroy(makeError(err, 'ERR_DATA_CHANNEL')) + } + + // HACK: Chrome will sometimes get stuck in readyState "closing", let's check for this condition + // https://bugs.chromium.org/p/chromium/issues/detail?id=882743 + var isClosing = false + this._closingInterval = setInterval(() => { // No "onclosing" event + if (this._channel && this._channel.readyState === 'closing') { + if (isClosing) this._onChannelClose() // closing timed out: equivalent to onclose firing + isClosing = true + } else { + isClosing = false + } + }, CHANNEL_CLOSING_TIMEOUT) + } + + _read () {} + + _write (chunk, encoding, cb) { + if (this.destroyed) return cb(makeError('cannot write after peer is destroyed', 'ERR_DATA_CHANNEL')) + + if (this._connected) { + try { + this.send(chunk) + } catch (err) { + return this.destroy(makeError(err, 'ERR_DATA_CHANNEL')) + } + if (this._channel.bufferedAmount > MAX_BUFFERED_AMOUNT) { + this._debug('start backpressure: bufferedAmount %d', this._channel.bufferedAmount) + this._cb = cb + } else { + cb(null) + } + } else { + this._debug('write before connect') + this._chunk = chunk + this._cb = cb + } + } + + // When stream finishes writing, close socket. Half open connections are not + // supported. + _onFinish () { + if (this.destroyed) return + + // Wait a bit before destroying so the socket flushes. + // TODO: is there a more reliable way to accomplish this? + const destroySoon = () => { + setTimeout(() => this.destroy(), 1000) + } + + if (this._connected) { + destroySoon() + } else { + this.once('connect', destroySoon) + } + } + + _startIceCompleteTimeout () { + if (this.destroyed) return + if (this._iceCompleteTimer) return + this._debug('started iceComplete timeout') + this._iceCompleteTimer = setTimeout(() => { + if (!this._iceComplete) { + this._iceComplete = true + this._debug('iceComplete timeout completed') + this.emit('iceTimeout') + this.emit('_iceComplete') + } + }, this.iceCompleteTimeout) + } + + _createOffer () { + if (this.destroyed) return + + this._pc.createOffer(this.offerOptions) + .then(offer => { + if (this.destroyed) return + if (!this.trickle && !this.allowHalfTrickle) offer.sdp = filterTrickle(offer.sdp) + offer.sdp = this.sdpTransform(offer.sdp) + + const sendOffer = () => { + if (this.destroyed) return + var signal = this._pc.localDescription || offer + this._debug('signal') + this.emit('signal', { + type: signal.type, + sdp: signal.sdp + }) + } + + const onSuccess = () => { + this._debug('createOffer success') + if (this.destroyed) return + if (this.trickle || this._iceComplete) sendOffer() + else this.once('_iceComplete', sendOffer) // wait for candidates + } + + const onError = err => { + this.destroy(makeError(err, 'ERR_SET_LOCAL_DESCRIPTION')) + } + + this._pc.setLocalDescription(offer) + .then(onSuccess) + .catch(onError) + }) + .catch(err => { + this.destroy(makeError(err, 'ERR_CREATE_OFFER')) + }) + } + + _requestMissingTransceivers () { + if (this._pc.getTransceivers) { + this._pc.getTransceivers().forEach(transceiver => { + if (!transceiver.mid && transceiver.sender.track && !transceiver.requested) { + transceiver.requested = true // HACK: Safari returns negotiated transceivers with a null mid + this.addTransceiver(transceiver.sender.track.kind) + } + }) + } + } + + _createAnswer () { + if (this.destroyed) return + + this._pc.createAnswer(this.answerOptions) + .then(answer => { + if (this.destroyed) return + if (!this.trickle && !this.allowHalfTrickle) answer.sdp = filterTrickle(answer.sdp) + answer.sdp = this.sdpTransform(answer.sdp) + + const sendAnswer = () => { + if (this.destroyed) return + var signal = this._pc.localDescription || answer + this._debug('signal') + this.emit('signal', { + type: signal.type, + sdp: signal.sdp + }) + if (!this.initiator) this._requestMissingTransceivers() + } + + const onSuccess = () => { + if (this.destroyed) return + if (this.trickle || this._iceComplete) sendAnswer() + else this.once('_iceComplete', sendAnswer) + } + + const onError = err => { + this.destroy(makeError(err, 'ERR_SET_LOCAL_DESCRIPTION')) + } + + this._pc.setLocalDescription(answer) + .then(onSuccess) + .catch(onError) + }) + .catch(err => { + this.destroy(makeError(err, 'ERR_CREATE_ANSWER')) + }) + } + + _onConnectionStateChange () { + if (this.destroyed) return + if (this._pc.connectionState === 'failed') { + // Do nothing, just wait for ice restart + // this.destroy(makeError('Connection failed.', 'ERR_CONNECTION_FAILURE')) + } + } + + _onIceStateChange () { + if (this.destroyed) return + var iceConnectionState = this._pc.iceConnectionState + var iceGatheringState = this._pc.iceGatheringState + + this._debug( + 'iceStateChange (connection: %s) (gathering: %s)', + iceConnectionState, + iceGatheringState + ) + this.emit('iceStateChange', iceConnectionState, iceGatheringState) + + if (iceConnectionState === 'connected' || iceConnectionState === 'completed') { + this._pcReady = true + this._isRestartingIce = false + this._maybeReady() + } + // Should we also include disconnected? + if (iceConnectionState === 'disconnected' || iceConnectionState === 'failed') { + if (this.initiator && !this._isRestartingIce) { + // Restart + this._isNegotiating = false + this._isRestartingIce = true + this._debug('ICE restart triggered.') + this._pc.restartIce() + // Terminate current negotiating + this._needsNegotiation() + // Timeout after some time if we haven't connected yet + this._startIceFailureRecoveryTimeout() + } + } + if (iceConnectionState === 'closed') { + this.destroy(makeError('Ice connection closed.', 'ERR_ICE_CONNECTION_CLOSED')) + } + } + + getStats (cb) { + // statreports can come with a value array instead of properties + const flattenValues = report => { + if (Object.prototype.toString.call(report.values) === '[object Array]') { + report.values.forEach(value => { + Object.assign(report, value) + }) + } + return report + } + + // Promise-based getStats() (standard) + if (this._pc.getStats.length === 0 || this._isReactNativeWebrtc) { + this._pc.getStats() + .then(res => { + var reports = [] + res.forEach(report => { + reports.push(flattenValues(report)) + }) + cb(null, reports) + }, err => cb(err)) + + // Single-parameter callback-based getStats() (non-standard) + } else if (this._pc.getStats.length > 0) { + this._pc.getStats(res => { + // If we destroy connection in `connect` callback this code might happen to run when actual connection is already closed + if (this.destroyed) return + + var reports = [] + res.result().forEach(result => { + var report = {} + result.names().forEach(name => { + report[name] = result.stat(name) + }) + report.id = result.id + report.type = result.type + report.timestamp = result.timestamp + reports.push(flattenValues(report)) + }) + cb(null, reports) + }, err => cb(err)) + + // Unknown browser, skip getStats() since it's anyone's guess which style of + // getStats() they implement. + } else { + cb(null, []) + } + } + + _maybeReady () { + this._debug('maybeReady pc %s channel %s', this._pcReady, this._channelReady) + if (this._connected || this._connecting || !this._pcReady || !this._channelReady) return + + this._connecting = true + + // HACK: We can't rely on order here, for details see https://github.com/js-platform/node-webrtc/issues/339 + const findCandidatePair = () => { + if (this.destroyed) return + + this.getStats((err, items) => { + if (this.destroyed) return + + // Treat getStats error as non-fatal. It's not essential. + if (err) items = [] + + var remoteCandidates = {} + var localCandidates = {} + var candidatePairs = {} + var foundSelectedCandidatePair = false + + items.forEach(item => { + // TODO: Once all browsers support the hyphenated stats report types, remove + // the non-hypenated ones + if (item.type === 'remotecandidate' || item.type === 'remote-candidate') { + remoteCandidates[item.id] = item + } + if (item.type === 'localcandidate' || item.type === 'local-candidate') { + localCandidates[item.id] = item + } + if (item.type === 'candidatepair' || item.type === 'candidate-pair') { + candidatePairs[item.id] = item + } + }) + + const setSelectedCandidatePair = selectedCandidatePair => { + foundSelectedCandidatePair = true + + var local = localCandidates[selectedCandidatePair.localCandidateId] + + if (local && (local.ip || local.address)) { + // Spec + this.localAddress = local.ip || local.address + this.localPort = Number(local.port) + } else if (local && local.ipAddress) { + // Firefox + this.localAddress = local.ipAddress + this.localPort = Number(local.portNumber) + } else if (typeof selectedCandidatePair.googLocalAddress === 'string') { + // TODO: remove this once Chrome 58 is released + local = selectedCandidatePair.googLocalAddress.split(':') + this.localAddress = local[0] + this.localPort = Number(local[1]) + } + if (this.localAddress) { + this.localFamily = this.localAddress.includes(':') ? 'IPv6' : 'IPv4' + } + + var remote = remoteCandidates[selectedCandidatePair.remoteCandidateId] + + if (remote && (remote.ip || remote.address)) { + // Spec + this.remoteAddress = remote.ip || remote.address + this.remotePort = Number(remote.port) + } else if (remote && remote.ipAddress) { + // Firefox + this.remoteAddress = remote.ipAddress + this.remotePort = Number(remote.portNumber) + } else if (typeof selectedCandidatePair.googRemoteAddress === 'string') { + // TODO: remove this once Chrome 58 is released + remote = selectedCandidatePair.googRemoteAddress.split(':') + this.remoteAddress = remote[0] + this.remotePort = Number(remote[1]) + } + if (this.remoteAddress) { + this.remoteFamily = this.remoteAddress.includes(':') ? 'IPv6' : 'IPv4' + } + + this._debug( + 'connect local: %s:%s remote: %s:%s', + this.localAddress, this.localPort, this.remoteAddress, this.remotePort + ) + } + + items.forEach(item => { + // Spec-compliant + if (item.type === 'transport' && item.selectedCandidatePairId) { + setSelectedCandidatePair(candidatePairs[item.selectedCandidatePairId]) + } + + // Old implementations + if ( + (item.type === 'googCandidatePair' && item.googActiveConnection === 'true') || + ((item.type === 'candidatepair' || item.type === 'candidate-pair') && item.selected) + ) { + setSelectedCandidatePair(item) + } + }) + + // Ignore candidate pair selection in browsers like Safari 11 that do not have any local or remote candidates + // But wait until at least 1 candidate pair is available + if (!foundSelectedCandidatePair && (!Object.keys(candidatePairs).length || Object.keys(localCandidates).length)) { + setTimeout(findCandidatePair, 100) + return + } else { + this._connecting = false + this._connected = true + } + + if (this._chunk) { + try { + this.send(this._chunk) + } catch (err) { + return this.destroy(makeError(err, 'ERR_DATA_CHANNEL')) + } + this._chunk = null + this._debug('sent chunk from "write before connect"') + + var cb = this._cb + this._cb = null + cb(null) + } + + // If `bufferedAmountLowThreshold` and 'onbufferedamountlow' are unsupported, + // fallback to using setInterval to implement backpressure. + if (typeof this._channel.bufferedAmountLowThreshold !== 'number') { + this._interval = setInterval(() => this._onInterval(), 150) + if (this._interval.unref) this._interval.unref() + } + + this._debug('connect') + this.emit('connect') + }) + } + findCandidatePair() + } + + _onInterval () { + if (!this._cb || !this._channel || this._channel.bufferedAmount > MAX_BUFFERED_AMOUNT) { + return + } + this._onChannelBufferedAmountLow() + } + + _onSignalingStateChange () { + if (this.destroyed) return + + if (this._pc.signalingState === 'stable' && !this._firstStable) { + this._firstStable = false + this._isNegotiating = false + + // HACK: Firefox doesn't yet support removing tracks when signalingState !== 'stable' + this._debug('flushing sender queue', this._sendersAwaitingStable) + this._sendersAwaitingStable.forEach(sender => { + this._pc.removeTrack(sender) + this._queuedNegotiation = true + }) + this._sendersAwaitingStable = [] + + if (this._queuedNegotiation) { + this._debug('flushing negotiation queue') + this._queuedNegotiation = false + this._needsNegotiation() // negotiate again + } + } + + this._debug('signalingStateChange %s', this._pc.signalingState) + this.emit('signalingStateChange', this._pc.signalingState) + } + + _onIceCandidate (event) { + if (this.destroyed) return + if (event.candidate && this.trickle) { + this.emit('signal', { + type: 'candidate', + candidate: { + candidate: event.candidate.candidate, + sdpMLineIndex: event.candidate.sdpMLineIndex, + sdpMid: event.candidate.sdpMid + } + }) + } else if (!event.candidate && !this._iceComplete) { + this._iceComplete = true + this.emit('_iceComplete') + } + // as soon as we've received one valid candidate start timeout + if (event.candidate) { + this._startIceCompleteTimeout() + } + } + + _onChannelMessage (event) { + if (this.destroyed) return + var data = event.data + if (data instanceof ArrayBuffer) data = Buffer.from(data) + this.push(data) + } + + _onChannelBufferedAmountLow () { + if (this.destroyed || !this._cb) return + this._debug('ending backpressure: bufferedAmount %d', this._channel.bufferedAmount) + var cb = this._cb + this._cb = null + cb(null) + } + + _onChannelOpen () { + if (this._connected || this.destroyed) return + this._debug('on channel open') + this._channelReady = true + this._maybeReady() + } + + _onChannelClose () { + if (this.destroyed) return + this._debug('on channel close') + this.destroy() + } + + _onTrack (event) { + if (this.destroyed) return + + event.streams.forEach(eventStream => { + this._debug('on track') + this.emit('track', event.track, eventStream) + + this._remoteTracks.push({ + track: event.track, + stream: eventStream + }) + + if (this._remoteStreams.some(remoteStream => { + return remoteStream.id === eventStream.id + })) return // Only fire one 'stream' event, even though there may be multiple tracks per stream + + this._remoteStreams.push(eventStream) + queueMicrotask(() => { + this._debug('on stream') + this.emit('stream', eventStream) // ensure all tracks have been added + }) + }) + } + + _debug () { + var args = [].slice.call(arguments) + args[0] = '[' + this._id + '] ' + args[0] + debug.apply(null, args) + } + + _startIceFailureRecoveryTimeout () { + if (this.destroyed) return + if (this._iceFailureRecoveryTimer) return + this._debug('started iceFailureRecovery timeout') + this._iceFailureRecoveryTimer = setTimeout(() => { + let hasFailedToRecover = !this._iceComplete && !(iceConnectionState === 'connected' || iceConnectionState === 'completed') + + if (hasFailedToRecover) { + this._debug('iceFailureRecovery timeout completed') + this.destroy(makeError('Ice connection failed.', 'ERR_ICE_CONNECTION_FAILURE')) + } + }, this.iceFailureRecoveryTimeout) + } +} + +Peer.WEBRTC_SUPPORT = !!getBrowserRTC() + +/** + * Expose peer and data channel config for overriding all Peer + * instances. Otherwise, just set opts.config or opts.channelConfig + * when constructing a Peer. + */ +Peer.config = { + iceServers: [ + { + urls: [ + 'stun:stun.l.google.com:19302', + 'stun:global.stun.twilio.com:3478' + ] + } + ], + sdpSemantics: 'unified-plan' +} + +Peer.channelConfig = {} + +module.exports = Peer diff --git a/index.js b/index.js index eecf1394..e69de29b 100644 --- a/index.js +++ b/index.js @@ -1,1046 +0,0 @@ -/*! simple-peer. MIT License. Feross Aboukhadijeh */ -var debug = require('debug')('simple-peer') -var getBrowserRTC = require('get-browser-rtc') -var randombytes = require('randombytes') -var stream = require('readable-stream') -var queueMicrotask = require('queue-microtask') // TODO: remove when Node 10 is not supported - -var MAX_BUFFERED_AMOUNT = 64 * 1024 -var ICECOMPLETE_TIMEOUT = 5 * 1000 -var CHANNEL_CLOSING_TIMEOUT = 5 * 1000 -var ICEFAILURE_RECOVERY_TIMEOUT = 5 * 1000 - -// HACK: Filter trickle lines when trickle is disabled #354 -function filterTrickle (sdp) { - return sdp.replace(/a=ice-options:trickle\s\n/g, '') -} - -function makeError (err, code) { - if (typeof err === 'string') err = new Error(err) - if (err.error instanceof Error) err = err.error - err.code = code - return err -} - -function warn (message) { - console.warn(message) -} - -/** - * WebRTC peer connection. Same API as node core `net.Socket`, plus a few extra methods. - * Duplex stream. - * @param {Object} opts - */ -class Peer extends stream.Duplex { - constructor (opts) { - opts = Object.assign({ - allowHalfOpen: false - }, opts) - - super(opts) - - this._id = randombytes(4).toString('hex').slice(0, 7) - this._debug('new peer %o', opts) - - this.channelName = opts.initiator - ? opts.channelName || randombytes(20).toString('hex') - : null - - this.initiator = opts.initiator || false - this.channelConfig = opts.channelConfig || Peer.channelConfig - this.negotiated = this.channelConfig.negotiated - this.config = Object.assign({}, Peer.config, opts.config) - this.offerOptions = opts.offerOptions || {} - this.answerOptions = opts.answerOptions || {} - this.sdpTransform = opts.sdpTransform || (sdp => sdp) - this.streams = opts.streams || (opts.stream ? [opts.stream] : []) // support old "stream" option - this.trickle = opts.trickle !== undefined ? opts.trickle : true - this.allowHalfTrickle = opts.allowHalfTrickle !== undefined ? opts.allowHalfTrickle : false - this.iceCompleteTimeout = opts.iceCompleteTimeout || ICECOMPLETE_TIMEOUT - this.iceFailureRecoveryTimeout = opts.iceFailureRecoveryTimeout || ICEFAILURE_RECOVERY_TIMEOUT - - this.destroyed = false - this._connected = false - - this.remoteAddress = undefined - this.remoteFamily = undefined - this.remotePort = undefined - this.localAddress = undefined - this.localFamily = undefined - this.localPort = undefined - - this._wrtc = (opts.wrtc && typeof opts.wrtc === 'object') - ? opts.wrtc - : getBrowserRTC() - - if (!this._wrtc) { - if (typeof window === 'undefined') { - throw makeError('No WebRTC support: Specify `opts.wrtc` option in this environment', 'ERR_WEBRTC_SUPPORT') - } else { - throw makeError('No WebRTC support: Not a supported browser', 'ERR_WEBRTC_SUPPORT') - } - } - - this._pcReady = false - this._channelReady = false - this._iceComplete = false // ice candidate trickle done (got null candidate) - this._iceCompleteTimer = null // send an offer/answer anyway after some timeout - this._channel = null - this._pendingCandidates = [] - - // Failed recovery - this._iceFailureRecoveryTimer = null // how long to wait for recovery from failed state - - this._isNegotiating = this.negotiated ? false : !this.initiator // is this peer waiting for negotiation to complete? - this._isRestartingIce = false // turned true while restarting and false when connected - this._batchedNegotiation = false // batch synchronous negotiations - this._queuedNegotiation = false // is there a queued negotiation request? - this._sendersAwaitingStable = [] - this._senderMap = new Map() - this._firstStable = true - this._closingInterval = null - - this._remoteTracks = [] - this._remoteStreams = [] - - this._chunk = null - this._cb = null - this._interval = null - - try { - this._pc = new (this._wrtc.RTCPeerConnection)(this.config) - } catch (err) { - queueMicrotask(() => this.destroy(makeError(err, 'ERR_PC_CONSTRUCTOR'))) - return - } - - // We prefer feature detection whenever possible, but sometimes that's not - // possible for certain implementations. - this._isReactNativeWebrtc = typeof this._pc._peerConnectionId === 'number' - - this._pc.oniceconnectionstatechange = () => { - this._onIceStateChange() - } - this._pc.onicegatheringstatechange = () => { - this._onIceStateChange() - } - this._pc.onconnectionstatechange = () => { - this._onConnectionStateChange() - } - this._pc.onsignalingstatechange = () => { - this._onSignalingStateChange() - } - this._pc.onicecandidate = event => { - this._onIceCandidate(event) - } - - // Other spec events, unused by this implementation: - // - onconnectionstatechange - // - onicecandidateerror - // - onfingerprintfailure - // - onnegotiationneeded - - if (this.initiator || this.negotiated) { - this._setupData({ - channel: this._pc.createDataChannel(this.channelName, this.channelConfig) - }) - } else { - this._pc.ondatachannel = event => { - this._setupData(event) - } - } - - if (this.streams) { - this.streams.forEach(stream => { - this.addStream(stream, false) - }) - } - this._pc.ontrack = event => { - this._onTrack(event) - } - - if (this.initiator) { - this._needsNegotiation() - } - - this._onFinishBound = () => { - this._onFinish() - } - this.once('finish', this._onFinishBound) - } - - get bufferSize () { - return (this._channel && this._channel.bufferedAmount) || 0 - } - - // HACK: it's possible channel.readyState is "closing" before peer.destroy() fires - // https://bugs.chromium.org/p/chromium/issues/detail?id=882743 - get connected () { - return (this._connected && this._channel.readyState === 'open') - } - - address () { - return { port: this.localPort, family: this.localFamily, address: this.localAddress } - } - - signal (data) { - if (this.destroyed) throw makeError('cannot signal after peer is destroyed', 'ERR_SIGNALING') - if (typeof data === 'string') { - try { - data = JSON.parse(data) - } catch (err) { - data = {} - } - } - this._debug('signal()') - - if (data.renegotiate && this.initiator) { - this._debug('got request to renegotiate') - this._needsNegotiation() - } - if (data.transceiverRequest && this.initiator) { - this._debug('got request for transceiver') - this.addTransceiver(data.transceiverRequest.kind, data.transceiverRequest.init) - } - if (data.candidate) { - if (this._pc.remoteDescription && this._pc.remoteDescription.type) { - this._addIceCandidate(data.candidate) - } else { - this._pendingCandidates.push(data.candidate) - } - } - if (data.sdp) { - this._pc.setRemoteDescription(new (this._wrtc.RTCSessionDescription)(data)) - .then(() => { - if (this.destroyed) return - - this._pendingCandidates.forEach(candidate => { - this._addIceCandidate(candidate) - }) - this._pendingCandidates = [] - - if (this._pc.remoteDescription.type === 'offer') this._createAnswer() - }) - .catch(err => { - this.destroy(makeError(err, 'ERR_SET_REMOTE_DESCRIPTION')) - }) - } - if (!data.sdp && !data.candidate && !data.renegotiate && !data.transceiverRequest) { - this.destroy(makeError('signal() called with invalid signal data', 'ERR_SIGNALING')) - } - } - - _addIceCandidate (candidate) { - var iceCandidateObj = new this._wrtc.RTCIceCandidate(candidate) - this._pc.addIceCandidate(iceCandidateObj) - .catch(err => { - if (!iceCandidateObj.address || iceCandidateObj.address.endsWith('.local')) { - warn('Ignoring unsupported ICE candidate.') - } else { - this.destroy(makeError(err, 'ERR_ADD_ICE_CANDIDATE')) - } - }) - } - - /** - * Send text/binary data to the remote peer. - * @param {ArrayBufferView|ArrayBuffer|Buffer|string|Blob} chunk - */ - send (chunk) { - this._channel.send(chunk) - } - - /** - * Add a Transceiver to the connection. - * @param {String} kind - * @param {Object} init - */ - addTransceiver (kind, init) { - this._debug('addTransceiver()') - - if (this.initiator) { - try { - this._pc.addTransceiver(kind, init) - this._needsNegotiation() - } catch (err) { - this.destroy(makeError(err, 'ERR_ADD_TRANSCEIVER')) - } - } else { - this.emit('signal', { // request initiator to renegotiate - type: 'transceiverRequest', - transceiverRequest: { kind, init } - }) - } - } - - /** - * Add a MediaStream to the connection. - * @param {MediaStream} stream - */ - addStream (stream, triggerNegotiate = true) { - this._debug('addStream()') - - stream.getTracks().forEach(track => { - this.addTrack(track, stream, triggerNegotiate) - }) - } - - /** - * Add a MediaStreamTrack to the connection. - * @param {MediaStreamTrack} track - * @param {MediaStream} stream - */ - addTrack (track, stream, triggerNegotiate = true) { - this._debug('addTrack()') - - var submap = this._senderMap.get(track) || new Map() // nested Maps map [track, stream] to sender - var sender = submap.get(stream) - if (!sender) { - sender = this._pc.addTrack(track, stream) - submap.set(stream, sender) - this._senderMap.set(track, submap) - if (triggerNegotiate) this._needsNegotiation() - } else if (sender.removed) { - throw makeError('Track has been removed. You should enable/disable tracks that you want to re-add.', 'ERR_SENDER_REMOVED') - } else { - throw makeError('Track has already been added to that stream.', 'ERR_SENDER_ALREADY_ADDED') - } - } - - /** - * Replace a MediaStreamTrack by another in the connection. - * @param {MediaStreamTrack} oldTrack - * @param {MediaStreamTrack} newTrack - * @param {MediaStream} stream - */ - replaceTrack (oldTrack, newTrack, stream) { - this._debug('replaceTrack()') - - var submap = this._senderMap.get(oldTrack) - var sender = submap ? submap.get(stream) : null - if (!sender) { - throw makeError('Cannot replace track that was never added.', 'ERR_TRACK_NOT_ADDED') - } - if (newTrack) this._senderMap.set(newTrack, submap) - - if (sender.replaceTrack != null) { - sender.replaceTrack(newTrack) - } else { - this.destroy(makeError('replaceTrack is not supported in this browser', 'ERR_UNSUPPORTED_REPLACETRACK')) - } - } - - /** - * Remove a MediaStreamTrack from the connection. - * @param {MediaStreamTrack} track - * @param {MediaStream} stream - */ - removeTrack (track, stream) { - this._debug('removeSender()') - - var submap = this._senderMap.get(track) - var sender = submap ? submap.get(stream) : null - if (!sender) { - throw makeError('Cannot remove track that was never added.', 'ERR_TRACK_NOT_ADDED') - } - try { - sender.removed = true - this._pc.removeTrack(sender) - } catch (err) { - if (err.name === 'NS_ERROR_UNEXPECTED') { - this._sendersAwaitingStable.push(sender) // HACK: Firefox must wait until (signalingState === stable) https://bugzilla.mozilla.org/show_bug.cgi?id=1133874 - } else { - this.destroy(makeError(err, 'ERR_REMOVE_TRACK')) - } - } - this._needsNegotiation() - } - - /** - * Remove a MediaStream from the connection. - * @param {MediaStream} stream - */ - removeStream (stream) { - this._debug('removeSenders()') - - stream.getTracks().forEach(track => { - this.removeTrack(track, stream) - }) - } - - _needsNegotiation () { - this._debug('_needsNegotiation') - if (this._batchedNegotiation) return // batch synchronous renegotiations - this._batchedNegotiation = true - queueMicrotask(() => { - this._batchedNegotiation = false - this._debug('starting batched negotiation') - this.negotiate() - }) - } - - negotiate () { - this._debug('negotiate') - this.emit('negotiate') - - if (this.initiator) { - if (this._isNegotiating) { - this._queuedNegotiation = true - this._debug('already negotiating, queueing') - } else { - this._debug('start negotiation') - setTimeout(() => { // HACK: Chrome crashes if we immediately call createOffer - this._createOffer() - }, 0) - } - } else { - if (this._isNegotiating) { - this._queuedNegotiation = true - this._debug('already negotiating, queueing') - } else { - this._debug('requesting negotiation from initiator') - this.emit('signal', { // request initiator to renegotiate - type: 'renegotiate', - renegotiate: true - }) - } - } - this._isNegotiating = true - } - - // TODO: Delete this method once readable-stream is updated to contain a default - // implementation of destroy() that automatically calls _destroy() - // See: https://github.com/nodejs/readable-stream/issues/283 - destroy (err) { - this._destroy(err, () => {}) - } - - _destroy (err, cb) { - if (this.destroyed) return - - this._debug('destroy (error: %s)', err && (err.message || err)) - - this.readable = this.writable = false - - if (!this._readableState.ended) this.push(null) - if (!this._writableState.finished) this.end() - - this.destroyed = true - this._connected = false - this._pcReady = false - this._channelReady = false - this._remoteTracks = null - this._remoteStreams = null - this._senderMap = null - - clearInterval(this._closingInterval) - this._closingInterval = null - - clearInterval(this._interval) - this._interval = null - this._chunk = null - this._cb = null - - if (this._onFinishBound) this.removeListener('finish', this._onFinishBound) - this._onFinishBound = null - - if (this._channel) { - try { - this._channel.close() - } catch (err) {} - - this._channel.onmessage = null - this._channel.onopen = null - this._channel.onclose = null - this._channel.onerror = null - } - if (this._pc) { - try { - this._pc.close() - } catch (err) {} - - this._pc.oniceconnectionstatechange = null - this._pc.onicegatheringstatechange = null - this._pc.onsignalingstatechange = null - this._pc.onicecandidate = null - this._pc.ontrack = null - this._pc.ondatachannel = null - } - this._pc = null - this._channel = null - - if (err) this.emit('error', err) - this.emit('close') - cb() - } - - _setupData (event) { - if (!event.channel) { - // In some situations `pc.createDataChannel()` returns `undefined` (in wrtc), - // which is invalid behavior. Handle it gracefully. - // See: https://github.com/feross/simple-peer/issues/163 - return this.destroy(makeError('Data channel event is missing `channel` property', 'ERR_DATA_CHANNEL')) - } - - this._channel = event.channel - this._channel.binaryType = 'arraybuffer' - - if (typeof this._channel.bufferedAmountLowThreshold === 'number') { - this._channel.bufferedAmountLowThreshold = MAX_BUFFERED_AMOUNT - } - - this.channelName = this._channel.label - - this._channel.onmessage = event => { - this._onChannelMessage(event) - } - this._channel.onbufferedamountlow = () => { - this._onChannelBufferedAmountLow() - } - this._channel.onopen = () => { - this._onChannelOpen() - } - this._channel.onclose = () => { - this._onChannelClose() - } - this._channel.onerror = err => { - this.destroy(makeError(err, 'ERR_DATA_CHANNEL')) - } - - // HACK: Chrome will sometimes get stuck in readyState "closing", let's check for this condition - // https://bugs.chromium.org/p/chromium/issues/detail?id=882743 - var isClosing = false - this._closingInterval = setInterval(() => { // No "onclosing" event - if (this._channel && this._channel.readyState === 'closing') { - if (isClosing) this._onChannelClose() // closing timed out: equivalent to onclose firing - isClosing = true - } else { - isClosing = false - } - }, CHANNEL_CLOSING_TIMEOUT) - } - - _read () {} - - _write (chunk, encoding, cb) { - if (this.destroyed) return cb(makeError('cannot write after peer is destroyed', 'ERR_DATA_CHANNEL')) - - if (this._connected) { - try { - this.send(chunk) - } catch (err) { - return this.destroy(makeError(err, 'ERR_DATA_CHANNEL')) - } - if (this._channel.bufferedAmount > MAX_BUFFERED_AMOUNT) { - this._debug('start backpressure: bufferedAmount %d', this._channel.bufferedAmount) - this._cb = cb - } else { - cb(null) - } - } else { - this._debug('write before connect') - this._chunk = chunk - this._cb = cb - } - } - - // When stream finishes writing, close socket. Half open connections are not - // supported. - _onFinish () { - if (this.destroyed) return - - // Wait a bit before destroying so the socket flushes. - // TODO: is there a more reliable way to accomplish this? - const destroySoon = () => { - setTimeout(() => this.destroy(), 1000) - } - - if (this._connected) { - destroySoon() - } else { - this.once('connect', destroySoon) - } - } - - _startIceCompleteTimeout () { - if (this.destroyed) return - if (this._iceCompleteTimer) return - this._debug('started iceComplete timeout') - this._iceCompleteTimer = setTimeout(() => { - if (!this._iceComplete) { - this._iceComplete = true - this._debug('iceComplete timeout completed') - this.emit('iceTimeout') - this.emit('_iceComplete') - } - }, this.iceCompleteTimeout) - } - - _createOffer () { - if (this.destroyed) return - - this._pc.createOffer(this.offerOptions) - .then(offer => { - if (this.destroyed) return - if (!this.trickle && !this.allowHalfTrickle) offer.sdp = filterTrickle(offer.sdp) - offer.sdp = this.sdpTransform(offer.sdp) - - const sendOffer = () => { - if (this.destroyed) return - var signal = this._pc.localDescription || offer - this._debug('signal') - this.emit('signal', { - type: signal.type, - sdp: signal.sdp - }) - } - - const onSuccess = () => { - this._debug('createOffer success') - if (this.destroyed) return - if (this.trickle || this._iceComplete) sendOffer() - else this.once('_iceComplete', sendOffer) // wait for candidates - } - - const onError = err => { - this.destroy(makeError(err, 'ERR_SET_LOCAL_DESCRIPTION')) - } - - this._pc.setLocalDescription(offer) - .then(onSuccess) - .catch(onError) - }) - .catch(err => { - this.destroy(makeError(err, 'ERR_CREATE_OFFER')) - }) - } - - _requestMissingTransceivers () { - if (this._pc.getTransceivers) { - this._pc.getTransceivers().forEach(transceiver => { - if (!transceiver.mid && transceiver.sender.track && !transceiver.requested) { - transceiver.requested = true // HACK: Safari returns negotiated transceivers with a null mid - this.addTransceiver(transceiver.sender.track.kind) - } - }) - } - } - - _createAnswer () { - if (this.destroyed) return - - this._pc.createAnswer(this.answerOptions) - .then(answer => { - if (this.destroyed) return - if (!this.trickle && !this.allowHalfTrickle) answer.sdp = filterTrickle(answer.sdp) - answer.sdp = this.sdpTransform(answer.sdp) - - const sendAnswer = () => { - if (this.destroyed) return - var signal = this._pc.localDescription || answer - this._debug('signal') - this.emit('signal', { - type: signal.type, - sdp: signal.sdp - }) - if (!this.initiator) this._requestMissingTransceivers() - } - - const onSuccess = () => { - if (this.destroyed) return - if (this.trickle || this._iceComplete) sendAnswer() - else this.once('_iceComplete', sendAnswer) - } - - const onError = err => { - this.destroy(makeError(err, 'ERR_SET_LOCAL_DESCRIPTION')) - } - - this._pc.setLocalDescription(answer) - .then(onSuccess) - .catch(onError) - }) - .catch(err => { - this.destroy(makeError(err, 'ERR_CREATE_ANSWER')) - }) - } - - _onConnectionStateChange () { - if (this.destroyed) return - if (this._pc.connectionState === 'failed') { - // Do nothing, just wait for ice restart - // this.destroy(makeError('Connection failed.', 'ERR_CONNECTION_FAILURE')) - } - } - - _onIceStateChange () { - if (this.destroyed) return - var iceConnectionState = this._pc.iceConnectionState - var iceGatheringState = this._pc.iceGatheringState - - this._debug( - 'iceStateChange (connection: %s) (gathering: %s)', - iceConnectionState, - iceGatheringState - ) - this.emit('iceStateChange', iceConnectionState, iceGatheringState) - - if (iceConnectionState === 'connected' || iceConnectionState === 'completed') { - this._pcReady = true - this._isRestartingIce = false - this._maybeReady() - } - // Should we also include disconnected? - if (iceConnectionState === 'disconnected' || iceConnectionState === 'failed') { - if (this.initiator && !this._isRestartingIce) { - // Restart - this._isNegotiating = false - this._isRestartingIce = true - this._debug('ICE restart triggered.') - this._pc.restartIce() - // Terminate current negotiating - this._needsNegotiation() - // Timeout after some time if we haven't connected yet - this._startIceFailureRecoveryTimeout() - } - } - if (iceConnectionState === 'closed') { - this.destroy(makeError('Ice connection closed.', 'ERR_ICE_CONNECTION_CLOSED')) - } - } - - getStats (cb) { - // statreports can come with a value array instead of properties - const flattenValues = report => { - if (Object.prototype.toString.call(report.values) === '[object Array]') { - report.values.forEach(value => { - Object.assign(report, value) - }) - } - return report - } - - // Promise-based getStats() (standard) - if (this._pc.getStats.length === 0 || this._isReactNativeWebrtc) { - this._pc.getStats() - .then(res => { - var reports = [] - res.forEach(report => { - reports.push(flattenValues(report)) - }) - cb(null, reports) - }, err => cb(err)) - - // Single-parameter callback-based getStats() (non-standard) - } else if (this._pc.getStats.length > 0) { - this._pc.getStats(res => { - // If we destroy connection in `connect` callback this code might happen to run when actual connection is already closed - if (this.destroyed) return - - var reports = [] - res.result().forEach(result => { - var report = {} - result.names().forEach(name => { - report[name] = result.stat(name) - }) - report.id = result.id - report.type = result.type - report.timestamp = result.timestamp - reports.push(flattenValues(report)) - }) - cb(null, reports) - }, err => cb(err)) - - // Unknown browser, skip getStats() since it's anyone's guess which style of - // getStats() they implement. - } else { - cb(null, []) - } - } - - _maybeReady () { - this._debug('maybeReady pc %s channel %s', this._pcReady, this._channelReady) - if (this._connected || this._connecting || !this._pcReady || !this._channelReady) return - - this._connecting = true - - // HACK: We can't rely on order here, for details see https://github.com/js-platform/node-webrtc/issues/339 - const findCandidatePair = () => { - if (this.destroyed) return - - this.getStats((err, items) => { - if (this.destroyed) return - - // Treat getStats error as non-fatal. It's not essential. - if (err) items = [] - - var remoteCandidates = {} - var localCandidates = {} - var candidatePairs = {} - var foundSelectedCandidatePair = false - - items.forEach(item => { - // TODO: Once all browsers support the hyphenated stats report types, remove - // the non-hypenated ones - if (item.type === 'remotecandidate' || item.type === 'remote-candidate') { - remoteCandidates[item.id] = item - } - if (item.type === 'localcandidate' || item.type === 'local-candidate') { - localCandidates[item.id] = item - } - if (item.type === 'candidatepair' || item.type === 'candidate-pair') { - candidatePairs[item.id] = item - } - }) - - const setSelectedCandidatePair = selectedCandidatePair => { - foundSelectedCandidatePair = true - - var local = localCandidates[selectedCandidatePair.localCandidateId] - - if (local && (local.ip || local.address)) { - // Spec - this.localAddress = local.ip || local.address - this.localPort = Number(local.port) - } else if (local && local.ipAddress) { - // Firefox - this.localAddress = local.ipAddress - this.localPort = Number(local.portNumber) - } else if (typeof selectedCandidatePair.googLocalAddress === 'string') { - // TODO: remove this once Chrome 58 is released - local = selectedCandidatePair.googLocalAddress.split(':') - this.localAddress = local[0] - this.localPort = Number(local[1]) - } - if (this.localAddress) { - this.localFamily = this.localAddress.includes(':') ? 'IPv6' : 'IPv4' - } - - var remote = remoteCandidates[selectedCandidatePair.remoteCandidateId] - - if (remote && (remote.ip || remote.address)) { - // Spec - this.remoteAddress = remote.ip || remote.address - this.remotePort = Number(remote.port) - } else if (remote && remote.ipAddress) { - // Firefox - this.remoteAddress = remote.ipAddress - this.remotePort = Number(remote.portNumber) - } else if (typeof selectedCandidatePair.googRemoteAddress === 'string') { - // TODO: remove this once Chrome 58 is released - remote = selectedCandidatePair.googRemoteAddress.split(':') - this.remoteAddress = remote[0] - this.remotePort = Number(remote[1]) - } - if (this.remoteAddress) { - this.remoteFamily = this.remoteAddress.includes(':') ? 'IPv6' : 'IPv4' - } - - this._debug( - 'connect local: %s:%s remote: %s:%s', - this.localAddress, this.localPort, this.remoteAddress, this.remotePort - ) - } - - items.forEach(item => { - // Spec-compliant - if (item.type === 'transport' && item.selectedCandidatePairId) { - setSelectedCandidatePair(candidatePairs[item.selectedCandidatePairId]) - } - - // Old implementations - if ( - (item.type === 'googCandidatePair' && item.googActiveConnection === 'true') || - ((item.type === 'candidatepair' || item.type === 'candidate-pair') && item.selected) - ) { - setSelectedCandidatePair(item) - } - }) - - // Ignore candidate pair selection in browsers like Safari 11 that do not have any local or remote candidates - // But wait until at least 1 candidate pair is available - if (!foundSelectedCandidatePair && (!Object.keys(candidatePairs).length || Object.keys(localCandidates).length)) { - setTimeout(findCandidatePair, 100) - return - } else { - this._connecting = false - this._connected = true - } - - if (this._chunk) { - try { - this.send(this._chunk) - } catch (err) { - return this.destroy(makeError(err, 'ERR_DATA_CHANNEL')) - } - this._chunk = null - this._debug('sent chunk from "write before connect"') - - var cb = this._cb - this._cb = null - cb(null) - } - - // If `bufferedAmountLowThreshold` and 'onbufferedamountlow' are unsupported, - // fallback to using setInterval to implement backpressure. - if (typeof this._channel.bufferedAmountLowThreshold !== 'number') { - this._interval = setInterval(() => this._onInterval(), 150) - if (this._interval.unref) this._interval.unref() - } - - this._debug('connect') - this.emit('connect') - }) - } - findCandidatePair() - } - - _onInterval () { - if (!this._cb || !this._channel || this._channel.bufferedAmount > MAX_BUFFERED_AMOUNT) { - return - } - this._onChannelBufferedAmountLow() - } - - _onSignalingStateChange () { - if (this.destroyed) return - - if (this._pc.signalingState === 'stable' && !this._firstStable) { - this._firstStable = false - this._isNegotiating = false - - // HACK: Firefox doesn't yet support removing tracks when signalingState !== 'stable' - this._debug('flushing sender queue', this._sendersAwaitingStable) - this._sendersAwaitingStable.forEach(sender => { - this._pc.removeTrack(sender) - this._queuedNegotiation = true - }) - this._sendersAwaitingStable = [] - - if (this._queuedNegotiation) { - this._debug('flushing negotiation queue') - this._queuedNegotiation = false - this._needsNegotiation() // negotiate again - } - } - - this._debug('signalingStateChange %s', this._pc.signalingState) - this.emit('signalingStateChange', this._pc.signalingState) - } - - _onIceCandidate (event) { - if (this.destroyed) return - if (event.candidate && this.trickle) { - this.emit('signal', { - type: 'candidate', - candidate: { - candidate: event.candidate.candidate, - sdpMLineIndex: event.candidate.sdpMLineIndex, - sdpMid: event.candidate.sdpMid - } - }) - } else if (!event.candidate && !this._iceComplete) { - this._iceComplete = true - this.emit('_iceComplete') - } - // as soon as we've received one valid candidate start timeout - if (event.candidate) { - this._startIceCompleteTimeout() - } - } - - _onChannelMessage (event) { - if (this.destroyed) return - var data = event.data - if (data instanceof ArrayBuffer) data = Buffer.from(data) - this.push(data) - } - - _onChannelBufferedAmountLow () { - if (this.destroyed || !this._cb) return - this._debug('ending backpressure: bufferedAmount %d', this._channel.bufferedAmount) - var cb = this._cb - this._cb = null - cb(null) - } - - _onChannelOpen () { - if (this._connected || this.destroyed) return - this._debug('on channel open') - this._channelReady = true - this._maybeReady() - } - - _onChannelClose () { - if (this.destroyed) return - this._debug('on channel close') - this.destroy() - } - - _onTrack (event) { - if (this.destroyed) return - - event.streams.forEach(eventStream => { - this._debug('on track') - this.emit('track', event.track, eventStream) - - this._remoteTracks.push({ - track: event.track, - stream: eventStream - }) - - if (this._remoteStreams.some(remoteStream => { - return remoteStream.id === eventStream.id - })) return // Only fire one 'stream' event, even though there may be multiple tracks per stream - - this._remoteStreams.push(eventStream) - queueMicrotask(() => { - this._debug('on stream') - this.emit('stream', eventStream) // ensure all tracks have been added - }) - }) - } - - _debug () { - var args = [].slice.call(arguments) - args[0] = '[' + this._id + '] ' + args[0] - debug.apply(null, args) - } - - _startIceFailureRecoveryTimeout () { - if (this.destroyed) return - if (this._iceFailureRecoveryTimer) return - this._debug('started iceFailureRecovery timeout') - this._iceFailureRecoveryTimer = setTimeout(() => { - let hasFailedToRecover = !this._iceComplete && !(iceConnectionState === 'connected' || iceConnectionState === 'completed') - - if (hasFailedToRecover) { - this._debug('iceFailureRecovery timeout completed') - this.destroy(makeError('Ice connection failed.', 'ERR_ICE_CONNECTION_FAILURE')) - } - }, this.iceFailureRecoveryTimeout) - } -} - -Peer.WEBRTC_SUPPORT = !!getBrowserRTC() - -/** - * Expose peer and data channel config for overriding all Peer - * instances. Otherwise, just set opts.config or opts.channelConfig - * when constructing a Peer. - */ -Peer.config = { - iceServers: [ - { - urls: [ - 'stun:stun.l.google.com:19302', - 'stun:global.stun.twilio.com:3478' - ] - } - ], - sdpSemantics: 'unified-plan' -} - -Peer.channelConfig = {} - -module.exports = Peer From 8b52a69f4fea889b972683096c906a8b0d8e0e07 Mon Sep 17 00:00:00 2001 From: Kyle Worcester-Moore <16263357+KW-M@users.noreply.github.com> Date: Sat, 7 Sep 2024 10:51:23 -0700 Subject: [PATCH 18/30] rename index.js to full.js and add formating config to faciltate merging --- .vscode/settings.json | 6 + full.js | 1057 +++++++++++++++++++++++++++++++++++++++++ index.js | 1057 ----------------------------------------- 3 files changed, 1063 insertions(+), 1057 deletions(-) create mode 100644 .vscode/settings.json create mode 100644 full.js diff --git a/.vscode/settings.json b/.vscode/settings.json new file mode 100644 index 00000000..81b1caf7 --- /dev/null +++ b/.vscode/settings.json @@ -0,0 +1,6 @@ +{ + "typescript.format.insertSpaceBeforeFunctionParenthesis": true, + "typescript.format.insertSpaceAfterConstructor": true, + "javascript.format.insertSpaceBeforeFunctionParenthesis": true, + "javascript.format.insertSpaceAfterConstructor": true +} diff --git a/full.js b/full.js new file mode 100644 index 00000000..7ab9c624 --- /dev/null +++ b/full.js @@ -0,0 +1,1057 @@ +/*! simple-peer. MIT License. Feross Aboukhadijeh */ +const debug = require('debug')('simple-peer') +const getBrowserRTC = require('get-browser-rtc') +const randombytes = require('randombytes') +const stream = require('readable-stream') +const queueMicrotask = require('queue-microtask') // TODO: remove when Node 10 is not supported +const errCode = require('err-code') +const { Buffer } = require('buffer') + +const MAX_BUFFERED_AMOUNT = 64 * 1024 +const ICECOMPLETE_TIMEOUT = 5 * 1000 +const CHANNEL_CLOSING_TIMEOUT = 5 * 1000 + +// HACK: Filter trickle lines when trickle is disabled #354 +function filterTrickle (sdp) { + return sdp.replace(/a=ice-options:trickle\s\n/g, '') +} + +function warn (message) { + console.warn(message) +} + +/** + * WebRTC peer connection. Same API as node core `net.Socket`, plus a few extra methods. + * Duplex stream. + * @param {Object} opts + */ +class Peer extends stream.Duplex { + constructor (opts) { + opts = Object.assign({ + allowHalfOpen: false + }, opts) + + super(opts) + + this._id = randombytes(4).toString('hex').slice(0, 7) + this._debug('new peer %o', opts) + + this.channelName = opts.initiator + ? opts.channelName || randombytes(20).toString('hex') + : null + + this.initiator = opts.initiator || false + this.channelConfig = opts.channelConfig || Peer.channelConfig + this.channelNegotiated = this.channelConfig.negotiated + this.config = Object.assign({}, Peer.config, opts.config) + this.offerOptions = opts.offerOptions || {} + this.answerOptions = opts.answerOptions || {} + this.sdpTransform = opts.sdpTransform || (sdp => sdp) + this.streams = opts.streams || (opts.stream ? [opts.stream] : []) // support old "stream" option + this.trickle = opts.trickle !== undefined ? opts.trickle : true + this.allowHalfTrickle = opts.allowHalfTrickle !== undefined ? opts.allowHalfTrickle : false + this.iceCompleteTimeout = opts.iceCompleteTimeout || ICECOMPLETE_TIMEOUT + this.iceRestartEnabled = 'iceRestartEnabled' in opts ? opts.iceRestartEnabled : true + + this.destroyed = false + this.destroying = false + this._connected = false + + this.remoteAddress = undefined + this.remoteFamily = undefined + this.remotePort = undefined + this.localAddress = undefined + this.localFamily = undefined + this.localPort = undefined + + this._wrtc = (opts.wrtc && typeof opts.wrtc === 'object') + ? opts.wrtc + : getBrowserRTC() + + if (!this._wrtc) { + if (typeof window === 'undefined') { + throw errCode(new Error('No WebRTC support: Specify `opts.wrtc` option in this environment'), 'ERR_WEBRTC_SUPPORT') + } else { + throw errCode(new Error('No WebRTC support: Not a supported browser'), 'ERR_WEBRTC_SUPPORT') + } + } + + this._pcReady = false + this._channelReady = false + this._iceComplete = false // ice candidate trickle done (got null candidate) + this._iceCompleteTimer = null // send an offer/answer anyway after some timeout + this._channel = null + this._pendingCandidates = [] + + this._isNegotiating = false // is this peer waiting for negotiation to complete? + this._firstNegotiation = true + this._batchedNegotiation = false // batch synchronous negotiations + this._queuedNegotiation = false // is there a queued negotiation request? + this._sendersAwaitingStable = [] + this._senderMap = new Map() + this._closingInterval = null + + this._remoteTracks = [] + this._remoteStreams = [] + + this._chunk = null + this._cb = null + this._interval = null + + try { + this._pc = new (this._wrtc.RTCPeerConnection)(this.config) + } catch (err) { + this.destroy(errCode(err, 'ERR_PC_CONSTRUCTOR')) + return + } + + // We prefer feature detection whenever possible, but sometimes that's not + // possible for certain implementations. + this._isReactNativeWebrtc = typeof this._pc._peerConnectionId === 'number' + + this._pc.oniceconnectionstatechange = () => { + this._onIceStateChange() + } + this._pc.onicegatheringstatechange = () => { + this._onIceStateChange() + } + this._pc.onconnectionstatechange = () => { + this._onConnectionStateChange() + } + this._pc.onsignalingstatechange = () => { + this._onSignalingStateChange() + } + this._pc.onicecandidate = event => { + this._onIceCandidate(event) + } + + // HACK: Fix for odd Firefox behavior, see: https://github.com/feross/simple-peer/pull/783 + if (typeof this._pc.peerIdentity === 'object') { + this._pc.peerIdentity.catch(err => { + this.destroy(errCode(err, 'ERR_PC_PEER_IDENTITY')) + }) + } + + // Other spec events, unused by this implementation: + // - onconnectionstatechange + // - onicecandidateerror + // - onfingerprintfailure + // - onnegotiationneeded + + if (this.initiator || this.channelNegotiated) { + this._setupData({ + channel: this._pc.createDataChannel(this.channelName, this.channelConfig) + }) + } else { + this._pc.ondatachannel = event => { + this._setupData(event) + } + } + + if (this.streams) { + this.streams.forEach(stream => { + this.addStream(stream) + }) + } + this._pc.ontrack = event => { + this._onTrack(event) + } + + this._debug('initial negotiation') + this._needsNegotiation() + + this._onFinishBound = () => { + this._onFinish() + } + this.once('finish', this._onFinishBound) + } + + get bufferSize () { + return (this._channel && this._channel.bufferedAmount) || 0 + } + + // HACK: it's possible channel.readyState is "closing" before peer.destroy() fires + // https://bugs.chromium.org/p/chromium/issues/detail?id=882743 + get connected () { + return (this._connected && this._channel.readyState === 'open') + } + + address () { + return { port: this.localPort, family: this.localFamily, address: this.localAddress } + } + + signal (data) { + if (this.destroyed) throw errCode(new Error('cannot signal after peer is destroyed'), 'ERR_SIGNALING') + if (typeof data === 'string') { + try { + data = JSON.parse(data) + } catch (err) { + data = {} + } + } + this._debug('signal()') + + if (data.renegotiate && this.initiator) { + this._debug('got request to renegotiate') + this._needsNegotiation() + } + if (data.transceiverRequest && this.initiator) { + this._debug('got request for transceiver') + this.addTransceiver(data.transceiverRequest.kind, data.transceiverRequest.init) + } + if (data.candidate) { + if (this._pc.remoteDescription && this._pc.remoteDescription.type) { + this._addIceCandidate(data.candidate) + } else { + this._pendingCandidates.push(data.candidate) + } + } + if (data.sdp) { + this._pc.setRemoteDescription(new (this._wrtc.RTCSessionDescription)(data)) + .then(() => { + if (this.destroyed) return + + this._pendingCandidates.forEach(candidate => { + this._addIceCandidate(candidate) + }) + this._pendingCandidates = [] + + if (this._pc.remoteDescription.type === 'offer') this._createAnswer() + }) + .catch(err => { + this.destroy(errCode(err, 'ERR_SET_REMOTE_DESCRIPTION')) + }) + } + if (!data.sdp && !data.candidate && !data.renegotiate && !data.transceiverRequest) { + this.destroy(errCode(new Error('signal() called with invalid signal data'), 'ERR_SIGNALING')) + } + } + + _addIceCandidate (candidate) { + const iceCandidateObj = new this._wrtc.RTCIceCandidate(candidate) + this._pc.addIceCandidate(iceCandidateObj) + .catch(err => { + if (!iceCandidateObj.address || iceCandidateObj.address.endsWith('.local')) { + warn('Ignoring unsupported ICE candidate.') + } else { + this.destroy(errCode(err, 'ERR_ADD_ICE_CANDIDATE')) + } + }) + } + + /** + * Send text/binary data to the remote peer. + * @param {ArrayBufferView|ArrayBuffer|Buffer|string|Blob} chunk + */ + send (chunk) { + this._channel.send(chunk) + } + + /** + * Add a Transceiver to the connection. + * @param {String} kind + * @param {Object} init + */ + addTransceiver (kind, init) { + this._debug('addTransceiver()') + + if (this.initiator) { + try { + this._pc.addTransceiver(kind, init) + this._needsNegotiation() + } catch (err) { + this.destroy(errCode(err, 'ERR_ADD_TRANSCEIVER')) + } + } else { + this.emit('signal', { // request initiator to renegotiate + type: 'transceiverRequest', + transceiverRequest: { kind, init } + }) + } + } + + /** + * Add a MediaStream to the connection. + * @param {MediaStream} stream + */ + addStream (stream) { + this._debug('addStream()') + + stream.getTracks().forEach(track => { + this.addTrack(track, stream) + }) + } + + /** + * Add a MediaStreamTrack to the connection. + * @param {MediaStreamTrack} track + * @param {MediaStream} stream + */ + addTrack (track, stream) { + this._debug('addTrack()') + + const submap = this._senderMap.get(track) || new Map() // nested Maps map [track, stream] to sender + let sender = submap.get(stream) + if (!sender) { + sender = this._pc.addTrack(track, stream) + submap.set(stream, sender) + this._senderMap.set(track, submap) + this._needsNegotiation() + } else if (sender.removed) { + throw errCode(new Error('Track has been removed. You should enable/disable tracks that you want to re-add.'), 'ERR_SENDER_REMOVED') + } else { + throw errCode(new Error('Track has already been added to that stream.'), 'ERR_SENDER_ALREADY_ADDED') + } + } + + /** + * Replace a MediaStreamTrack by another in the connection. + * @param {MediaStreamTrack} oldTrack + * @param {MediaStreamTrack} newTrack + * @param {MediaStream} stream + */ + replaceTrack (oldTrack, newTrack, stream) { + this._debug('replaceTrack()') + + const submap = this._senderMap.get(oldTrack) + const sender = submap ? submap.get(stream) : null + if (!sender) { + throw errCode(new Error('Cannot replace track that was never added.'), 'ERR_TRACK_NOT_ADDED') + } + if (newTrack) this._senderMap.set(newTrack, submap) + + if (sender.replaceTrack != null) { + sender.replaceTrack(newTrack) + } else { + this.destroy(errCode(new Error('replaceTrack is not supported in this browser'), 'ERR_UNSUPPORTED_REPLACETRACK')) + } + } + + /** + * Remove a MediaStreamTrack from the connection. + * @param {MediaStreamTrack} track + * @param {MediaStream} stream + */ + removeTrack (track, stream) { + this._debug('removeSender()') + + const submap = this._senderMap.get(track) + const sender = submap ? submap.get(stream) : null + if (!sender) { + throw errCode(new Error('Cannot remove track that was never added.'), 'ERR_TRACK_NOT_ADDED') + } + try { + sender.removed = true + this._pc.removeTrack(sender) + } catch (err) { + if (err.name === 'NS_ERROR_UNEXPECTED') { + this._sendersAwaitingStable.push(sender) // HACK: Firefox must wait until (signalingState === stable) https://bugzilla.mozilla.org/show_bug.cgi?id=1133874 + } else { + this.destroy(errCode(err, 'ERR_REMOVE_TRACK')) + } + } + this._needsNegotiation() + } + + /** + * Remove a MediaStream from the connection. + * @param {MediaStream} stream + */ + removeStream (stream) { + this._debug('removeSenders()') + + stream.getTracks().forEach(track => { + this.removeTrack(track, stream) + }) + } + + _needsNegotiation () { + this._debug('_needsNegotiation') + if (this._batchedNegotiation) return // batch synchronous renegotiations + this._batchedNegotiation = true + queueMicrotask(() => { + this._batchedNegotiation = false + if (this.initiator || !this._firstNegotiation) { + this._debug('starting batched negotiation') + this.negotiate(this._isRestarting) + } else { + this._debug('non-initiator initial negotiation request discarded') + } + this._firstNegotiation = false + }) + } + + negotiate (restart = false) { + if (this.initiator) { + if (this._isNegotiating) { + this._queuedNegotiation = true + this._debug('already negotiating, queueing') + } else { + this._debug('start negotiation') + setTimeout(() => { // HACK: Chrome crashes if we immediately call createOffer + this._createOffer(restart) + }, 0) + } + this._isRestarting = restart + } else { + if (this._isNegotiating) { + this._queuedNegotiation = true + this._debug('already negotiating, queueing') + } else { + this._debug('requesting negotiation from initiator') + this.emit('signal', { // request initiator to renegotiate + type: 'renegotiate', + renegotiate: true + }) + } + } + this._isNegotiating = true + } + + restart () { + if (this.initiator) { + if (this._isRestarting) { + this._debug('already restarting, ignoring') + } else { + this._pc.restartIce() + } + } + } + + // TODO: Delete this method once readable-stream is updated to contain a default + // implementation of destroy() that automatically calls _destroy() + // See: https://github.com/nodejs/readable-stream/issues/283 + destroy (err) { + this._destroy(err, () => { }) + } + + _destroy (err, cb) { + if (this.destroyed || this.destroying) return + this.destroying = true + + this._debug('destroying (error: %s)', err && (err.message || err)) + + queueMicrotask(() => { // allow events concurrent with the call to _destroy() to fire (see #692) + this.destroyed = true + this.destroying = false + + this._debug('destroy (error: %s)', err && (err.message || err)) + + this.readable = this.writable = false + + if (!this._readableState.ended) this.push(null) + if (!this._writableState.finished) this.end() + + this._connected = false + this._pcReady = false + this._channelReady = false + this._remoteTracks = null + this._remoteStreams = null + this._senderMap = null + + clearInterval(this._closingInterval) + this._closingInterval = null + + clearInterval(this._interval) + this._interval = null + this._chunk = null + this._cb = null + + if (this._onFinishBound) this.removeListener('finish', this._onFinishBound) + this._onFinishBound = null + + if (this._channel) { + try { + this._channel.close() + } catch (err) { } + + // allow events concurrent with destruction to be handled + this._channel.onmessage = null + this._channel.onopen = null + this._channel.onclose = null + this._channel.onerror = null + } + if (this._pc) { + try { + this._pc.close() + } catch (err) { } + + // allow events concurrent with destruction to be handled + this._pc.oniceconnectionstatechange = null + this._pc.onicegatheringstatechange = null + this._pc.onsignalingstatechange = null + this._pc.onicecandidate = null + this._pc.ontrack = null + this._pc.ondatachannel = null + } + this._pc = null + this._channel = null + + if (err) this.emit('error', err) + this.emit('close') + cb() + }) + } + + _setupData (event) { + if (!event.channel) { + // In some situations `pc.createDataChannel()` returns `undefined` (in wrtc), + // which is invalid behavior. Handle it gracefully. + // See: https://github.com/feross/simple-peer/issues/163 + return this.destroy(errCode(new Error('Data channel event is missing `channel` property'), 'ERR_DATA_CHANNEL')) + } + + this._channel = event.channel + this._channel.binaryType = 'arraybuffer' + + if (typeof this._channel.bufferedAmountLowThreshold === 'number') { + this._channel.bufferedAmountLowThreshold = MAX_BUFFERED_AMOUNT + } + + this.channelName = this._channel.label + + this._channel.onmessage = event => { + this._onChannelMessage(event) + } + this._channel.onbufferedamountlow = () => { + this._onChannelBufferedAmountLow() + } + this._channel.onopen = () => { + this._onChannelOpen() + } + this._channel.onclose = () => { + this._onChannelClose() + } + this._channel.onerror = event => { + const err = event.error instanceof Error + ? event.error + : new Error(`Datachannel error: ${event.message} ${event.filename}:${event.lineno}:${event.colno}`) + this.destroy(errCode(err, 'ERR_DATA_CHANNEL')) + } + + // HACK: Chrome will sometimes get stuck in readyState "closing", let's check for this condition + // https://bugs.chromium.org/p/chromium/issues/detail?id=882743 + let isClosing = false + this._closingInterval = setInterval(() => { // No "onclosing" event + if (this._channel && this._channel.readyState === 'closing') { + if (isClosing) this._onChannelClose() // closing timed out: equivalent to onclose firing + isClosing = true + } else { + isClosing = false + } + }, CHANNEL_CLOSING_TIMEOUT) + } + + _read () { } + + _write (chunk, encoding, cb) { + if (this.destroyed) return cb(errCode(new Error('cannot write after peer is destroyed'), 'ERR_DATA_CHANNEL')) + + if (this._connected) { + try { + this.send(chunk) + } catch (err) { + return this.destroy(errCode(err, 'ERR_DATA_CHANNEL')) + } + if (this._channel.bufferedAmount > MAX_BUFFERED_AMOUNT) { + this._debug('start backpressure: bufferedAmount %d', this._channel.bufferedAmount) + this._cb = cb + } else { + cb(null) + } + } else { + this._debug('write before connect') + this._chunk = chunk + this._cb = cb + } + } + + // When stream finishes writing, close socket. Half open connections are not + // supported. + _onFinish () { + if (this.destroyed) return + + // Wait a bit before destroying so the socket flushes. + // TODO: is there a more reliable way to accomplish this? + const destroySoon = () => { + setTimeout(() => this.destroy(), 1000) + } + + if (this._connected) { + destroySoon() + } else { + this.once('connect', destroySoon) + } + } + + _startIceCompleteTimeout () { + if (this.destroyed) return + if (this._iceCompleteTimer) return + this._debug('started iceComplete timeout') + this._iceCompleteTimer = setTimeout(() => { + if (!this._iceComplete) { + this._iceComplete = true + this._debug('iceComplete timeout completed') + this.emit('iceTimeout') + this.emit('_iceComplete') + } + }, this.iceCompleteTimeout) + } + + _createOffer () { + if (this.destroyed) return + + this._pc.createOffer(this.offerOptions) + .then(offer => { + if (this.destroyed) return + if (!this.trickle && !this.allowHalfTrickle) offer.sdp = filterTrickle(offer.sdp) + offer.sdp = this.sdpTransform(offer.sdp) + + const sendOffer = () => { + if (this.destroyed) return + const signal = this._pc.localDescription || offer + this._debug('signal') + this.emit('signal', { + type: signal.type, + sdp: signal.sdp + }) + } + + const onSuccess = () => { + this._debug('createOffer success') + if (this.destroyed) return + if (this.trickle || this._iceComplete) sendOffer() + else this.once('_iceComplete', sendOffer) // wait for candidates + } + + const onError = err => { + this.destroy(errCode(err, 'ERR_SET_LOCAL_DESCRIPTION')) + } + + this._pc.setLocalDescription(offer) + .then(onSuccess) + .catch(onError) + }) + .catch(err => { + this.destroy(errCode(err, 'ERR_CREATE_OFFER')) + }) + } + + _requestMissingTransceivers () { + if (this._pc.getTransceivers) { + this._pc.getTransceivers().forEach(transceiver => { + if (!transceiver.mid && transceiver.sender.track && !transceiver.requested) { + transceiver.requested = true // HACK: Safari returns negotiated transceivers with a null mid + this.addTransceiver(transceiver.sender.track.kind) + } + }) + } + } + + _createAnswer () { + if (this.destroyed) return + + this._pc.createAnswer(this.answerOptions) + .then(answer => { + if (this.destroyed) return + if (!this.trickle && !this.allowHalfTrickle) answer.sdp = filterTrickle(answer.sdp) + answer.sdp = this.sdpTransform(answer.sdp) + + const sendAnswer = () => { + if (this.destroyed) return + const signal = this._pc.localDescription || answer + this._debug('signal') + this.emit('signal', { + type: signal.type, + sdp: signal.sdp + }) + if (!this.initiator) this._requestMissingTransceivers() + } + + const onSuccess = () => { + if (this.destroyed) return + if (this.trickle || this._iceComplete) sendAnswer() + else this.once('_iceComplete', sendAnswer) + } + + const onError = err => { + this.destroy(errCode(err, 'ERR_SET_LOCAL_DESCRIPTION')) + } + + this._pc.setLocalDescription(answer) + .then(onSuccess) + .catch(onError) + }) + .catch(err => { + this.destroy(errCode(err, 'ERR_CREATE_ANSWER')) + }) + } + + _onConnectionStateChange () { + if (this.destroyed) return + if (this._pc.connectionState === 'failed' && !this.iceRestartEnabled) { + this.destroy(errCode(new Error('Connection failed.'), 'ERR_CONNECTION_FAILURE')) + } else if (this._pc.connectionState === 'failed' && this.iceRestartEnabled) { + this._pc.restartIce() + } + } + + _onIceStateChange () { + if (this.destroyed) return + const iceConnectionState = this._pc.iceConnectionState + const iceGatheringState = this._pc.iceGatheringState + + this._debug( + 'iceStateChange (connection: %s) (gathering: %s)', + iceConnectionState, + iceGatheringState + ) + this.emit('iceStateChange', iceConnectionState, iceGatheringState) + + if (iceConnectionState === 'connected' || iceGatheringState === 'completed') { + this._isRestarting = false + this._pcReady = true + this._maybeReady() + } + + if (iceConnectionState === 'failed' && this.iceRestartEnabled) { + if (this.initiator && !this._isRestarting) { + this._isNegotiating = false + this._isRestarting = true + + this._needsNegotiation() + } + } else if (iceConnectionState === 'failed' && !this.iceRestartEnabled) { + this.destroy(errCode(new Error('Ice connection failed.'), 'ERR_ICE_CONNECTION_FAILURE')) + } + if (iceConnectionState === 'closed') { + this.destroy(errCode(new Error('Ice connection closed.'), 'ERR_ICE_CONNECTION_CLOSED')) + } + } + + getStats (cb) { + // statreports can come with a value array instead of properties + const flattenValues = report => { + if (Object.prototype.toString.call(report.values) === '[object Array]') { + report.values.forEach(value => { + Object.assign(report, value) + }) + } + return report + } + + // Promise-based getStats() (standard) + if (this._pc.getStats.length === 0 || this._isReactNativeWebrtc) { + this._pc.getStats() + .then(res => { + const reports = [] + res.forEach(report => { + reports.push(flattenValues(report)) + }) + cb(null, reports) + }, err => cb(err)) + + // Single-parameter callback-based getStats() (non-standard) + } else if (this._pc.getStats.length > 0) { + this._pc.getStats(res => { + // If we destroy connection in `connect` callback this code might happen to run when actual connection is already closed + if (this.destroyed) return + + const reports = [] + res.result().forEach(result => { + const report = {} + result.names().forEach(name => { + report[name] = result.stat(name) + }) + report.id = result.id + report.type = result.type + report.timestamp = result.timestamp + reports.push(flattenValues(report)) + }) + cb(null, reports) + }, err => cb(err)) + + // Unknown browser, skip getStats() since it's anyone's guess which style of + // getStats() they implement. + } else { + cb(null, []) + } + } + + _maybeReady () { + this._debug('maybeReady pc %s channel %s', this._pcReady, this._channelReady) + if (((this._connected || this._connecting) && !this._isRestarting) || !this._pcReady || !this._channelReady) return + + this._connecting = true + + // HACK: We can't rely on order here, for details see https://github.com/js-platform/node-webrtc/issues/339 + const findCandidatePair = () => { + if (this.destroyed) return + + this.getStats((err, items) => { + if (this.destroyed) return + + // Treat getStats error as non-fatal. It's not essential. + if (err) items = [] + + const remoteCandidates = {} + const localCandidates = {} + const candidatePairs = {} + let foundSelectedCandidatePair = false + + items.forEach(item => { + // TODO: Once all browsers support the hyphenated stats report types, remove + // the non-hypenated ones + if (item.type === 'remotecandidate' || item.type === 'remote-candidate') { + remoteCandidates[item.id] = item + } + if (item.type === 'localcandidate' || item.type === 'local-candidate') { + localCandidates[item.id] = item + } + if (item.type === 'candidatepair' || item.type === 'candidate-pair') { + candidatePairs[item.id] = item + } + }) + + const setSelectedCandidatePair = selectedCandidatePair => { + foundSelectedCandidatePair = true + + let local = localCandidates[selectedCandidatePair.localCandidateId] + + if (local && (local.ip || local.address)) { + // Spec + this.localAddress = local.ip || local.address + this.localPort = Number(local.port) + } else if (local && local.ipAddress) { + // Firefox + this.localAddress = local.ipAddress + this.localPort = Number(local.portNumber) + } else if (typeof selectedCandidatePair.googLocalAddress === 'string') { + // TODO: remove this once Chrome 58 is released + local = selectedCandidatePair.googLocalAddress.split(':') + this.localAddress = local[0] + this.localPort = Number(local[1]) + } + if (this.localAddress) { + this.localFamily = this.localAddress.includes(':') ? 'IPv6' : 'IPv4' + } + + let remote = remoteCandidates[selectedCandidatePair.remoteCandidateId] + + if (remote && (remote.ip || remote.address)) { + // Spec + this.remoteAddress = remote.ip || remote.address + this.remotePort = Number(remote.port) + } else if (remote && remote.ipAddress) { + // Firefox + this.remoteAddress = remote.ipAddress + this.remotePort = Number(remote.portNumber) + } else if (typeof selectedCandidatePair.googRemoteAddress === 'string') { + // TODO: remove this once Chrome 58 is released + remote = selectedCandidatePair.googRemoteAddress.split(':') + this.remoteAddress = remote[0] + this.remotePort = Number(remote[1]) + } + if (this.remoteAddress) { + this.remoteFamily = this.remoteAddress.includes(':') ? 'IPv6' : 'IPv4' + } + + this._debug( + 'connect local: %s:%s remote: %s:%s', + this.localAddress, + this.localPort, + this.remoteAddress, + this.remotePort + ) + } + + items.forEach(item => { + // Spec-compliant + if (item.type === 'transport' && item.selectedCandidatePairId) { + setSelectedCandidatePair(candidatePairs[item.selectedCandidatePairId]) + } + + // Old implementations + if ( + (item.type === 'googCandidatePair' && item.googActiveConnection === 'true') || + ((item.type === 'candidatepair' || item.type === 'candidate-pair') && item.selected) + ) { + setSelectedCandidatePair(item) + } + }) + + // Ignore candidate pair selection in browsers like Safari 11 that do not have any local or remote candidates + // But wait until at least 1 candidate pair is available + if (!foundSelectedCandidatePair && (!Object.keys(candidatePairs).length || Object.keys(localCandidates).length)) { + setTimeout(findCandidatePair, 100) + return + } else { + this._connecting = false + this._connected = true + } + + if (this._chunk) { + try { + this.send(this._chunk) + } catch (err) { + return this.destroy(errCode(err, 'ERR_DATA_CHANNEL')) + } + this._chunk = null + this._debug('sent chunk from "write before connect"') + + const cb = this._cb + this._cb = null + cb(null) + } + + // If `bufferedAmountLowThreshold` and 'onbufferedamountlow' are unsupported, + // fallback to using setInterval to implement backpressure. + if (typeof this._channel.bufferedAmountLowThreshold !== 'number') { + this._interval = setInterval(() => this._onInterval(), 150) + if (this._interval.unref) this._interval.unref() + } + + this._debug('connect') + this.emit('connect') + }) + } + findCandidatePair() + } + + _onInterval () { + if (!this._cb || !this._channel || this._channel.bufferedAmount > MAX_BUFFERED_AMOUNT) { + return + } + this._onChannelBufferedAmountLow() + } + + _onSignalingStateChange () { + if (this.destroyed) return + + if (this._pc.signalingState === 'stable') { + this._isNegotiating = false + + // HACK: Firefox doesn't yet support removing tracks when signalingState !== 'stable' + this._debug('flushing sender queue', this._sendersAwaitingStable) + this._sendersAwaitingStable.forEach(sender => { + this._pc.removeTrack(sender) + this._queuedNegotiation = true + }) + this._sendersAwaitingStable = [] + + if (this._queuedNegotiation) { + this._debug('flushing negotiation queue') + this._queuedNegotiation = false + this._needsNegotiation() // negotiate again + } else { + this._debug('negotiated') + this.emit('negotiated') + } + } + + this._debug('signalingStateChange %s', this._pc.signalingState) + this.emit('signalingStateChange', this._pc.signalingState) + } + + _onIceCandidate (event) { + if (this.destroyed) return + if (event.candidate && this.trickle) { + this.emit('signal', { + type: 'candidate', + candidate: { + candidate: event.candidate.candidate, + sdpMLineIndex: event.candidate.sdpMLineIndex, + sdpMid: event.candidate.sdpMid + } + }) + } else if (!event.candidate && !this._iceComplete) { + this._iceComplete = true + this.emit('_iceComplete') + } + // as soon as we've received one valid candidate start timeout + if (event.candidate) { + this._startIceCompleteTimeout() + } + } + + _onChannelMessage (event) { + if (this.destroyed) return + let data = event.data + if (data instanceof ArrayBuffer) data = Buffer.from(data) + this.push(data) + } + + _onChannelBufferedAmountLow () { + if (this.destroyed || !this._cb) return + this._debug('ending backpressure: bufferedAmount %d', this._channel.bufferedAmount) + const cb = this._cb + this._cb = null + cb(null) + } + + _onChannelOpen () { + if (this._connected || this.destroyed) return + this._debug('on channel open') + this._channelReady = true + this._maybeReady() + } + + _onChannelClose () { + if (this.destroyed) return + this._debug('on channel close') + this.destroy() + } + + _onTrack (event) { + if (this.destroyed) return + + event.streams.forEach(eventStream => { + this._debug('on track') + this.emit('track', event.track, eventStream) + + this._remoteTracks.push({ + track: event.track, + stream: eventStream + }) + + if (this._remoteStreams.some(remoteStream => { + return remoteStream.id === eventStream.id + })) return // Only fire one 'stream' event, even though there may be multiple tracks per stream + + this._remoteStreams.push(eventStream) + queueMicrotask(() => { + this._debug('on stream') + this.emit('stream', eventStream) // ensure all tracks have been added + }) + }) + } + + _debug () { + const args = [].slice.call(arguments) + args[0] = '[' + this._id + '] ' + args[0] + debug.apply(null, args) + } +} + +Peer.WEBRTC_SUPPORT = !!getBrowserRTC() + +/** + * Expose peer and data channel config for overriding all Peer + * instances. Otherwise, just set opts.config or opts.channelConfig + * when constructing a Peer. + */ +Peer.config = { + iceServers: [ + { + urls: [ + 'stun:stun.l.google.com:19302', + 'stun:global.stun.twilio.com:3478' + ] + } + ], + sdpSemantics: 'unified-plan' +} + +Peer.channelConfig = {} + +module.exports = Peer diff --git a/index.js b/index.js index 7ab9c624..e69de29b 100644 --- a/index.js +++ b/index.js @@ -1,1057 +0,0 @@ -/*! simple-peer. MIT License. Feross Aboukhadijeh */ -const debug = require('debug')('simple-peer') -const getBrowserRTC = require('get-browser-rtc') -const randombytes = require('randombytes') -const stream = require('readable-stream') -const queueMicrotask = require('queue-microtask') // TODO: remove when Node 10 is not supported -const errCode = require('err-code') -const { Buffer } = require('buffer') - -const MAX_BUFFERED_AMOUNT = 64 * 1024 -const ICECOMPLETE_TIMEOUT = 5 * 1000 -const CHANNEL_CLOSING_TIMEOUT = 5 * 1000 - -// HACK: Filter trickle lines when trickle is disabled #354 -function filterTrickle (sdp) { - return sdp.replace(/a=ice-options:trickle\s\n/g, '') -} - -function warn (message) { - console.warn(message) -} - -/** - * WebRTC peer connection. Same API as node core `net.Socket`, plus a few extra methods. - * Duplex stream. - * @param {Object} opts - */ -class Peer extends stream.Duplex { - constructor (opts) { - opts = Object.assign({ - allowHalfOpen: false - }, opts) - - super(opts) - - this._id = randombytes(4).toString('hex').slice(0, 7) - this._debug('new peer %o', opts) - - this.channelName = opts.initiator - ? opts.channelName || randombytes(20).toString('hex') - : null - - this.initiator = opts.initiator || false - this.channelConfig = opts.channelConfig || Peer.channelConfig - this.channelNegotiated = this.channelConfig.negotiated - this.config = Object.assign({}, Peer.config, opts.config) - this.offerOptions = opts.offerOptions || {} - this.answerOptions = opts.answerOptions || {} - this.sdpTransform = opts.sdpTransform || (sdp => sdp) - this.streams = opts.streams || (opts.stream ? [opts.stream] : []) // support old "stream" option - this.trickle = opts.trickle !== undefined ? opts.trickle : true - this.allowHalfTrickle = opts.allowHalfTrickle !== undefined ? opts.allowHalfTrickle : false - this.iceCompleteTimeout = opts.iceCompleteTimeout || ICECOMPLETE_TIMEOUT - this.iceRestartEnabled = 'iceRestartEnabled' in opts ? opts.iceRestartEnabled : true - - this.destroyed = false - this.destroying = false - this._connected = false - - this.remoteAddress = undefined - this.remoteFamily = undefined - this.remotePort = undefined - this.localAddress = undefined - this.localFamily = undefined - this.localPort = undefined - - this._wrtc = (opts.wrtc && typeof opts.wrtc === 'object') - ? opts.wrtc - : getBrowserRTC() - - if (!this._wrtc) { - if (typeof window === 'undefined') { - throw errCode(new Error('No WebRTC support: Specify `opts.wrtc` option in this environment'), 'ERR_WEBRTC_SUPPORT') - } else { - throw errCode(new Error('No WebRTC support: Not a supported browser'), 'ERR_WEBRTC_SUPPORT') - } - } - - this._pcReady = false - this._channelReady = false - this._iceComplete = false // ice candidate trickle done (got null candidate) - this._iceCompleteTimer = null // send an offer/answer anyway after some timeout - this._channel = null - this._pendingCandidates = [] - - this._isNegotiating = false // is this peer waiting for negotiation to complete? - this._firstNegotiation = true - this._batchedNegotiation = false // batch synchronous negotiations - this._queuedNegotiation = false // is there a queued negotiation request? - this._sendersAwaitingStable = [] - this._senderMap = new Map() - this._closingInterval = null - - this._remoteTracks = [] - this._remoteStreams = [] - - this._chunk = null - this._cb = null - this._interval = null - - try { - this._pc = new (this._wrtc.RTCPeerConnection)(this.config) - } catch (err) { - this.destroy(errCode(err, 'ERR_PC_CONSTRUCTOR')) - return - } - - // We prefer feature detection whenever possible, but sometimes that's not - // possible for certain implementations. - this._isReactNativeWebrtc = typeof this._pc._peerConnectionId === 'number' - - this._pc.oniceconnectionstatechange = () => { - this._onIceStateChange() - } - this._pc.onicegatheringstatechange = () => { - this._onIceStateChange() - } - this._pc.onconnectionstatechange = () => { - this._onConnectionStateChange() - } - this._pc.onsignalingstatechange = () => { - this._onSignalingStateChange() - } - this._pc.onicecandidate = event => { - this._onIceCandidate(event) - } - - // HACK: Fix for odd Firefox behavior, see: https://github.com/feross/simple-peer/pull/783 - if (typeof this._pc.peerIdentity === 'object') { - this._pc.peerIdentity.catch(err => { - this.destroy(errCode(err, 'ERR_PC_PEER_IDENTITY')) - }) - } - - // Other spec events, unused by this implementation: - // - onconnectionstatechange - // - onicecandidateerror - // - onfingerprintfailure - // - onnegotiationneeded - - if (this.initiator || this.channelNegotiated) { - this._setupData({ - channel: this._pc.createDataChannel(this.channelName, this.channelConfig) - }) - } else { - this._pc.ondatachannel = event => { - this._setupData(event) - } - } - - if (this.streams) { - this.streams.forEach(stream => { - this.addStream(stream) - }) - } - this._pc.ontrack = event => { - this._onTrack(event) - } - - this._debug('initial negotiation') - this._needsNegotiation() - - this._onFinishBound = () => { - this._onFinish() - } - this.once('finish', this._onFinishBound) - } - - get bufferSize () { - return (this._channel && this._channel.bufferedAmount) || 0 - } - - // HACK: it's possible channel.readyState is "closing" before peer.destroy() fires - // https://bugs.chromium.org/p/chromium/issues/detail?id=882743 - get connected () { - return (this._connected && this._channel.readyState === 'open') - } - - address () { - return { port: this.localPort, family: this.localFamily, address: this.localAddress } - } - - signal (data) { - if (this.destroyed) throw errCode(new Error('cannot signal after peer is destroyed'), 'ERR_SIGNALING') - if (typeof data === 'string') { - try { - data = JSON.parse(data) - } catch (err) { - data = {} - } - } - this._debug('signal()') - - if (data.renegotiate && this.initiator) { - this._debug('got request to renegotiate') - this._needsNegotiation() - } - if (data.transceiverRequest && this.initiator) { - this._debug('got request for transceiver') - this.addTransceiver(data.transceiverRequest.kind, data.transceiverRequest.init) - } - if (data.candidate) { - if (this._pc.remoteDescription && this._pc.remoteDescription.type) { - this._addIceCandidate(data.candidate) - } else { - this._pendingCandidates.push(data.candidate) - } - } - if (data.sdp) { - this._pc.setRemoteDescription(new (this._wrtc.RTCSessionDescription)(data)) - .then(() => { - if (this.destroyed) return - - this._pendingCandidates.forEach(candidate => { - this._addIceCandidate(candidate) - }) - this._pendingCandidates = [] - - if (this._pc.remoteDescription.type === 'offer') this._createAnswer() - }) - .catch(err => { - this.destroy(errCode(err, 'ERR_SET_REMOTE_DESCRIPTION')) - }) - } - if (!data.sdp && !data.candidate && !data.renegotiate && !data.transceiverRequest) { - this.destroy(errCode(new Error('signal() called with invalid signal data'), 'ERR_SIGNALING')) - } - } - - _addIceCandidate (candidate) { - const iceCandidateObj = new this._wrtc.RTCIceCandidate(candidate) - this._pc.addIceCandidate(iceCandidateObj) - .catch(err => { - if (!iceCandidateObj.address || iceCandidateObj.address.endsWith('.local')) { - warn('Ignoring unsupported ICE candidate.') - } else { - this.destroy(errCode(err, 'ERR_ADD_ICE_CANDIDATE')) - } - }) - } - - /** - * Send text/binary data to the remote peer. - * @param {ArrayBufferView|ArrayBuffer|Buffer|string|Blob} chunk - */ - send (chunk) { - this._channel.send(chunk) - } - - /** - * Add a Transceiver to the connection. - * @param {String} kind - * @param {Object} init - */ - addTransceiver (kind, init) { - this._debug('addTransceiver()') - - if (this.initiator) { - try { - this._pc.addTransceiver(kind, init) - this._needsNegotiation() - } catch (err) { - this.destroy(errCode(err, 'ERR_ADD_TRANSCEIVER')) - } - } else { - this.emit('signal', { // request initiator to renegotiate - type: 'transceiverRequest', - transceiverRequest: { kind, init } - }) - } - } - - /** - * Add a MediaStream to the connection. - * @param {MediaStream} stream - */ - addStream (stream) { - this._debug('addStream()') - - stream.getTracks().forEach(track => { - this.addTrack(track, stream) - }) - } - - /** - * Add a MediaStreamTrack to the connection. - * @param {MediaStreamTrack} track - * @param {MediaStream} stream - */ - addTrack (track, stream) { - this._debug('addTrack()') - - const submap = this._senderMap.get(track) || new Map() // nested Maps map [track, stream] to sender - let sender = submap.get(stream) - if (!sender) { - sender = this._pc.addTrack(track, stream) - submap.set(stream, sender) - this._senderMap.set(track, submap) - this._needsNegotiation() - } else if (sender.removed) { - throw errCode(new Error('Track has been removed. You should enable/disable tracks that you want to re-add.'), 'ERR_SENDER_REMOVED') - } else { - throw errCode(new Error('Track has already been added to that stream.'), 'ERR_SENDER_ALREADY_ADDED') - } - } - - /** - * Replace a MediaStreamTrack by another in the connection. - * @param {MediaStreamTrack} oldTrack - * @param {MediaStreamTrack} newTrack - * @param {MediaStream} stream - */ - replaceTrack (oldTrack, newTrack, stream) { - this._debug('replaceTrack()') - - const submap = this._senderMap.get(oldTrack) - const sender = submap ? submap.get(stream) : null - if (!sender) { - throw errCode(new Error('Cannot replace track that was never added.'), 'ERR_TRACK_NOT_ADDED') - } - if (newTrack) this._senderMap.set(newTrack, submap) - - if (sender.replaceTrack != null) { - sender.replaceTrack(newTrack) - } else { - this.destroy(errCode(new Error('replaceTrack is not supported in this browser'), 'ERR_UNSUPPORTED_REPLACETRACK')) - } - } - - /** - * Remove a MediaStreamTrack from the connection. - * @param {MediaStreamTrack} track - * @param {MediaStream} stream - */ - removeTrack (track, stream) { - this._debug('removeSender()') - - const submap = this._senderMap.get(track) - const sender = submap ? submap.get(stream) : null - if (!sender) { - throw errCode(new Error('Cannot remove track that was never added.'), 'ERR_TRACK_NOT_ADDED') - } - try { - sender.removed = true - this._pc.removeTrack(sender) - } catch (err) { - if (err.name === 'NS_ERROR_UNEXPECTED') { - this._sendersAwaitingStable.push(sender) // HACK: Firefox must wait until (signalingState === stable) https://bugzilla.mozilla.org/show_bug.cgi?id=1133874 - } else { - this.destroy(errCode(err, 'ERR_REMOVE_TRACK')) - } - } - this._needsNegotiation() - } - - /** - * Remove a MediaStream from the connection. - * @param {MediaStream} stream - */ - removeStream (stream) { - this._debug('removeSenders()') - - stream.getTracks().forEach(track => { - this.removeTrack(track, stream) - }) - } - - _needsNegotiation () { - this._debug('_needsNegotiation') - if (this._batchedNegotiation) return // batch synchronous renegotiations - this._batchedNegotiation = true - queueMicrotask(() => { - this._batchedNegotiation = false - if (this.initiator || !this._firstNegotiation) { - this._debug('starting batched negotiation') - this.negotiate(this._isRestarting) - } else { - this._debug('non-initiator initial negotiation request discarded') - } - this._firstNegotiation = false - }) - } - - negotiate (restart = false) { - if (this.initiator) { - if (this._isNegotiating) { - this._queuedNegotiation = true - this._debug('already negotiating, queueing') - } else { - this._debug('start negotiation') - setTimeout(() => { // HACK: Chrome crashes if we immediately call createOffer - this._createOffer(restart) - }, 0) - } - this._isRestarting = restart - } else { - if (this._isNegotiating) { - this._queuedNegotiation = true - this._debug('already negotiating, queueing') - } else { - this._debug('requesting negotiation from initiator') - this.emit('signal', { // request initiator to renegotiate - type: 'renegotiate', - renegotiate: true - }) - } - } - this._isNegotiating = true - } - - restart () { - if (this.initiator) { - if (this._isRestarting) { - this._debug('already restarting, ignoring') - } else { - this._pc.restartIce() - } - } - } - - // TODO: Delete this method once readable-stream is updated to contain a default - // implementation of destroy() that automatically calls _destroy() - // See: https://github.com/nodejs/readable-stream/issues/283 - destroy (err) { - this._destroy(err, () => { }) - } - - _destroy (err, cb) { - if (this.destroyed || this.destroying) return - this.destroying = true - - this._debug('destroying (error: %s)', err && (err.message || err)) - - queueMicrotask(() => { // allow events concurrent with the call to _destroy() to fire (see #692) - this.destroyed = true - this.destroying = false - - this._debug('destroy (error: %s)', err && (err.message || err)) - - this.readable = this.writable = false - - if (!this._readableState.ended) this.push(null) - if (!this._writableState.finished) this.end() - - this._connected = false - this._pcReady = false - this._channelReady = false - this._remoteTracks = null - this._remoteStreams = null - this._senderMap = null - - clearInterval(this._closingInterval) - this._closingInterval = null - - clearInterval(this._interval) - this._interval = null - this._chunk = null - this._cb = null - - if (this._onFinishBound) this.removeListener('finish', this._onFinishBound) - this._onFinishBound = null - - if (this._channel) { - try { - this._channel.close() - } catch (err) { } - - // allow events concurrent with destruction to be handled - this._channel.onmessage = null - this._channel.onopen = null - this._channel.onclose = null - this._channel.onerror = null - } - if (this._pc) { - try { - this._pc.close() - } catch (err) { } - - // allow events concurrent with destruction to be handled - this._pc.oniceconnectionstatechange = null - this._pc.onicegatheringstatechange = null - this._pc.onsignalingstatechange = null - this._pc.onicecandidate = null - this._pc.ontrack = null - this._pc.ondatachannel = null - } - this._pc = null - this._channel = null - - if (err) this.emit('error', err) - this.emit('close') - cb() - }) - } - - _setupData (event) { - if (!event.channel) { - // In some situations `pc.createDataChannel()` returns `undefined` (in wrtc), - // which is invalid behavior. Handle it gracefully. - // See: https://github.com/feross/simple-peer/issues/163 - return this.destroy(errCode(new Error('Data channel event is missing `channel` property'), 'ERR_DATA_CHANNEL')) - } - - this._channel = event.channel - this._channel.binaryType = 'arraybuffer' - - if (typeof this._channel.bufferedAmountLowThreshold === 'number') { - this._channel.bufferedAmountLowThreshold = MAX_BUFFERED_AMOUNT - } - - this.channelName = this._channel.label - - this._channel.onmessage = event => { - this._onChannelMessage(event) - } - this._channel.onbufferedamountlow = () => { - this._onChannelBufferedAmountLow() - } - this._channel.onopen = () => { - this._onChannelOpen() - } - this._channel.onclose = () => { - this._onChannelClose() - } - this._channel.onerror = event => { - const err = event.error instanceof Error - ? event.error - : new Error(`Datachannel error: ${event.message} ${event.filename}:${event.lineno}:${event.colno}`) - this.destroy(errCode(err, 'ERR_DATA_CHANNEL')) - } - - // HACK: Chrome will sometimes get stuck in readyState "closing", let's check for this condition - // https://bugs.chromium.org/p/chromium/issues/detail?id=882743 - let isClosing = false - this._closingInterval = setInterval(() => { // No "onclosing" event - if (this._channel && this._channel.readyState === 'closing') { - if (isClosing) this._onChannelClose() // closing timed out: equivalent to onclose firing - isClosing = true - } else { - isClosing = false - } - }, CHANNEL_CLOSING_TIMEOUT) - } - - _read () { } - - _write (chunk, encoding, cb) { - if (this.destroyed) return cb(errCode(new Error('cannot write after peer is destroyed'), 'ERR_DATA_CHANNEL')) - - if (this._connected) { - try { - this.send(chunk) - } catch (err) { - return this.destroy(errCode(err, 'ERR_DATA_CHANNEL')) - } - if (this._channel.bufferedAmount > MAX_BUFFERED_AMOUNT) { - this._debug('start backpressure: bufferedAmount %d', this._channel.bufferedAmount) - this._cb = cb - } else { - cb(null) - } - } else { - this._debug('write before connect') - this._chunk = chunk - this._cb = cb - } - } - - // When stream finishes writing, close socket. Half open connections are not - // supported. - _onFinish () { - if (this.destroyed) return - - // Wait a bit before destroying so the socket flushes. - // TODO: is there a more reliable way to accomplish this? - const destroySoon = () => { - setTimeout(() => this.destroy(), 1000) - } - - if (this._connected) { - destroySoon() - } else { - this.once('connect', destroySoon) - } - } - - _startIceCompleteTimeout () { - if (this.destroyed) return - if (this._iceCompleteTimer) return - this._debug('started iceComplete timeout') - this._iceCompleteTimer = setTimeout(() => { - if (!this._iceComplete) { - this._iceComplete = true - this._debug('iceComplete timeout completed') - this.emit('iceTimeout') - this.emit('_iceComplete') - } - }, this.iceCompleteTimeout) - } - - _createOffer () { - if (this.destroyed) return - - this._pc.createOffer(this.offerOptions) - .then(offer => { - if (this.destroyed) return - if (!this.trickle && !this.allowHalfTrickle) offer.sdp = filterTrickle(offer.sdp) - offer.sdp = this.sdpTransform(offer.sdp) - - const sendOffer = () => { - if (this.destroyed) return - const signal = this._pc.localDescription || offer - this._debug('signal') - this.emit('signal', { - type: signal.type, - sdp: signal.sdp - }) - } - - const onSuccess = () => { - this._debug('createOffer success') - if (this.destroyed) return - if (this.trickle || this._iceComplete) sendOffer() - else this.once('_iceComplete', sendOffer) // wait for candidates - } - - const onError = err => { - this.destroy(errCode(err, 'ERR_SET_LOCAL_DESCRIPTION')) - } - - this._pc.setLocalDescription(offer) - .then(onSuccess) - .catch(onError) - }) - .catch(err => { - this.destroy(errCode(err, 'ERR_CREATE_OFFER')) - }) - } - - _requestMissingTransceivers () { - if (this._pc.getTransceivers) { - this._pc.getTransceivers().forEach(transceiver => { - if (!transceiver.mid && transceiver.sender.track && !transceiver.requested) { - transceiver.requested = true // HACK: Safari returns negotiated transceivers with a null mid - this.addTransceiver(transceiver.sender.track.kind) - } - }) - } - } - - _createAnswer () { - if (this.destroyed) return - - this._pc.createAnswer(this.answerOptions) - .then(answer => { - if (this.destroyed) return - if (!this.trickle && !this.allowHalfTrickle) answer.sdp = filterTrickle(answer.sdp) - answer.sdp = this.sdpTransform(answer.sdp) - - const sendAnswer = () => { - if (this.destroyed) return - const signal = this._pc.localDescription || answer - this._debug('signal') - this.emit('signal', { - type: signal.type, - sdp: signal.sdp - }) - if (!this.initiator) this._requestMissingTransceivers() - } - - const onSuccess = () => { - if (this.destroyed) return - if (this.trickle || this._iceComplete) sendAnswer() - else this.once('_iceComplete', sendAnswer) - } - - const onError = err => { - this.destroy(errCode(err, 'ERR_SET_LOCAL_DESCRIPTION')) - } - - this._pc.setLocalDescription(answer) - .then(onSuccess) - .catch(onError) - }) - .catch(err => { - this.destroy(errCode(err, 'ERR_CREATE_ANSWER')) - }) - } - - _onConnectionStateChange () { - if (this.destroyed) return - if (this._pc.connectionState === 'failed' && !this.iceRestartEnabled) { - this.destroy(errCode(new Error('Connection failed.'), 'ERR_CONNECTION_FAILURE')) - } else if (this._pc.connectionState === 'failed' && this.iceRestartEnabled) { - this._pc.restartIce() - } - } - - _onIceStateChange () { - if (this.destroyed) return - const iceConnectionState = this._pc.iceConnectionState - const iceGatheringState = this._pc.iceGatheringState - - this._debug( - 'iceStateChange (connection: %s) (gathering: %s)', - iceConnectionState, - iceGatheringState - ) - this.emit('iceStateChange', iceConnectionState, iceGatheringState) - - if (iceConnectionState === 'connected' || iceGatheringState === 'completed') { - this._isRestarting = false - this._pcReady = true - this._maybeReady() - } - - if (iceConnectionState === 'failed' && this.iceRestartEnabled) { - if (this.initiator && !this._isRestarting) { - this._isNegotiating = false - this._isRestarting = true - - this._needsNegotiation() - } - } else if (iceConnectionState === 'failed' && !this.iceRestartEnabled) { - this.destroy(errCode(new Error('Ice connection failed.'), 'ERR_ICE_CONNECTION_FAILURE')) - } - if (iceConnectionState === 'closed') { - this.destroy(errCode(new Error('Ice connection closed.'), 'ERR_ICE_CONNECTION_CLOSED')) - } - } - - getStats (cb) { - // statreports can come with a value array instead of properties - const flattenValues = report => { - if (Object.prototype.toString.call(report.values) === '[object Array]') { - report.values.forEach(value => { - Object.assign(report, value) - }) - } - return report - } - - // Promise-based getStats() (standard) - if (this._pc.getStats.length === 0 || this._isReactNativeWebrtc) { - this._pc.getStats() - .then(res => { - const reports = [] - res.forEach(report => { - reports.push(flattenValues(report)) - }) - cb(null, reports) - }, err => cb(err)) - - // Single-parameter callback-based getStats() (non-standard) - } else if (this._pc.getStats.length > 0) { - this._pc.getStats(res => { - // If we destroy connection in `connect` callback this code might happen to run when actual connection is already closed - if (this.destroyed) return - - const reports = [] - res.result().forEach(result => { - const report = {} - result.names().forEach(name => { - report[name] = result.stat(name) - }) - report.id = result.id - report.type = result.type - report.timestamp = result.timestamp - reports.push(flattenValues(report)) - }) - cb(null, reports) - }, err => cb(err)) - - // Unknown browser, skip getStats() since it's anyone's guess which style of - // getStats() they implement. - } else { - cb(null, []) - } - } - - _maybeReady () { - this._debug('maybeReady pc %s channel %s', this._pcReady, this._channelReady) - if (((this._connected || this._connecting) && !this._isRestarting) || !this._pcReady || !this._channelReady) return - - this._connecting = true - - // HACK: We can't rely on order here, for details see https://github.com/js-platform/node-webrtc/issues/339 - const findCandidatePair = () => { - if (this.destroyed) return - - this.getStats((err, items) => { - if (this.destroyed) return - - // Treat getStats error as non-fatal. It's not essential. - if (err) items = [] - - const remoteCandidates = {} - const localCandidates = {} - const candidatePairs = {} - let foundSelectedCandidatePair = false - - items.forEach(item => { - // TODO: Once all browsers support the hyphenated stats report types, remove - // the non-hypenated ones - if (item.type === 'remotecandidate' || item.type === 'remote-candidate') { - remoteCandidates[item.id] = item - } - if (item.type === 'localcandidate' || item.type === 'local-candidate') { - localCandidates[item.id] = item - } - if (item.type === 'candidatepair' || item.type === 'candidate-pair') { - candidatePairs[item.id] = item - } - }) - - const setSelectedCandidatePair = selectedCandidatePair => { - foundSelectedCandidatePair = true - - let local = localCandidates[selectedCandidatePair.localCandidateId] - - if (local && (local.ip || local.address)) { - // Spec - this.localAddress = local.ip || local.address - this.localPort = Number(local.port) - } else if (local && local.ipAddress) { - // Firefox - this.localAddress = local.ipAddress - this.localPort = Number(local.portNumber) - } else if (typeof selectedCandidatePair.googLocalAddress === 'string') { - // TODO: remove this once Chrome 58 is released - local = selectedCandidatePair.googLocalAddress.split(':') - this.localAddress = local[0] - this.localPort = Number(local[1]) - } - if (this.localAddress) { - this.localFamily = this.localAddress.includes(':') ? 'IPv6' : 'IPv4' - } - - let remote = remoteCandidates[selectedCandidatePair.remoteCandidateId] - - if (remote && (remote.ip || remote.address)) { - // Spec - this.remoteAddress = remote.ip || remote.address - this.remotePort = Number(remote.port) - } else if (remote && remote.ipAddress) { - // Firefox - this.remoteAddress = remote.ipAddress - this.remotePort = Number(remote.portNumber) - } else if (typeof selectedCandidatePair.googRemoteAddress === 'string') { - // TODO: remove this once Chrome 58 is released - remote = selectedCandidatePair.googRemoteAddress.split(':') - this.remoteAddress = remote[0] - this.remotePort = Number(remote[1]) - } - if (this.remoteAddress) { - this.remoteFamily = this.remoteAddress.includes(':') ? 'IPv6' : 'IPv4' - } - - this._debug( - 'connect local: %s:%s remote: %s:%s', - this.localAddress, - this.localPort, - this.remoteAddress, - this.remotePort - ) - } - - items.forEach(item => { - // Spec-compliant - if (item.type === 'transport' && item.selectedCandidatePairId) { - setSelectedCandidatePair(candidatePairs[item.selectedCandidatePairId]) - } - - // Old implementations - if ( - (item.type === 'googCandidatePair' && item.googActiveConnection === 'true') || - ((item.type === 'candidatepair' || item.type === 'candidate-pair') && item.selected) - ) { - setSelectedCandidatePair(item) - } - }) - - // Ignore candidate pair selection in browsers like Safari 11 that do not have any local or remote candidates - // But wait until at least 1 candidate pair is available - if (!foundSelectedCandidatePair && (!Object.keys(candidatePairs).length || Object.keys(localCandidates).length)) { - setTimeout(findCandidatePair, 100) - return - } else { - this._connecting = false - this._connected = true - } - - if (this._chunk) { - try { - this.send(this._chunk) - } catch (err) { - return this.destroy(errCode(err, 'ERR_DATA_CHANNEL')) - } - this._chunk = null - this._debug('sent chunk from "write before connect"') - - const cb = this._cb - this._cb = null - cb(null) - } - - // If `bufferedAmountLowThreshold` and 'onbufferedamountlow' are unsupported, - // fallback to using setInterval to implement backpressure. - if (typeof this._channel.bufferedAmountLowThreshold !== 'number') { - this._interval = setInterval(() => this._onInterval(), 150) - if (this._interval.unref) this._interval.unref() - } - - this._debug('connect') - this.emit('connect') - }) - } - findCandidatePair() - } - - _onInterval () { - if (!this._cb || !this._channel || this._channel.bufferedAmount > MAX_BUFFERED_AMOUNT) { - return - } - this._onChannelBufferedAmountLow() - } - - _onSignalingStateChange () { - if (this.destroyed) return - - if (this._pc.signalingState === 'stable') { - this._isNegotiating = false - - // HACK: Firefox doesn't yet support removing tracks when signalingState !== 'stable' - this._debug('flushing sender queue', this._sendersAwaitingStable) - this._sendersAwaitingStable.forEach(sender => { - this._pc.removeTrack(sender) - this._queuedNegotiation = true - }) - this._sendersAwaitingStable = [] - - if (this._queuedNegotiation) { - this._debug('flushing negotiation queue') - this._queuedNegotiation = false - this._needsNegotiation() // negotiate again - } else { - this._debug('negotiated') - this.emit('negotiated') - } - } - - this._debug('signalingStateChange %s', this._pc.signalingState) - this.emit('signalingStateChange', this._pc.signalingState) - } - - _onIceCandidate (event) { - if (this.destroyed) return - if (event.candidate && this.trickle) { - this.emit('signal', { - type: 'candidate', - candidate: { - candidate: event.candidate.candidate, - sdpMLineIndex: event.candidate.sdpMLineIndex, - sdpMid: event.candidate.sdpMid - } - }) - } else if (!event.candidate && !this._iceComplete) { - this._iceComplete = true - this.emit('_iceComplete') - } - // as soon as we've received one valid candidate start timeout - if (event.candidate) { - this._startIceCompleteTimeout() - } - } - - _onChannelMessage (event) { - if (this.destroyed) return - let data = event.data - if (data instanceof ArrayBuffer) data = Buffer.from(data) - this.push(data) - } - - _onChannelBufferedAmountLow () { - if (this.destroyed || !this._cb) return - this._debug('ending backpressure: bufferedAmount %d', this._channel.bufferedAmount) - const cb = this._cb - this._cb = null - cb(null) - } - - _onChannelOpen () { - if (this._connected || this.destroyed) return - this._debug('on channel open') - this._channelReady = true - this._maybeReady() - } - - _onChannelClose () { - if (this.destroyed) return - this._debug('on channel close') - this.destroy() - } - - _onTrack (event) { - if (this.destroyed) return - - event.streams.forEach(eventStream => { - this._debug('on track') - this.emit('track', event.track, eventStream) - - this._remoteTracks.push({ - track: event.track, - stream: eventStream - }) - - if (this._remoteStreams.some(remoteStream => { - return remoteStream.id === eventStream.id - })) return // Only fire one 'stream' event, even though there may be multiple tracks per stream - - this._remoteStreams.push(eventStream) - queueMicrotask(() => { - this._debug('on stream') - this.emit('stream', eventStream) // ensure all tracks have been added - }) - }) - } - - _debug () { - const args = [].slice.call(arguments) - args[0] = '[' + this._id + '] ' + args[0] - debug.apply(null, args) - } -} - -Peer.WEBRTC_SUPPORT = !!getBrowserRTC() - -/** - * Expose peer and data channel config for overriding all Peer - * instances. Otherwise, just set opts.config or opts.channelConfig - * when constructing a Peer. - */ -Peer.config = { - iceServers: [ - { - urls: [ - 'stun:stun.l.google.com:19302', - 'stun:global.stun.twilio.com:3478' - ] - } - ], - sdpSemantics: 'unified-plan' -} - -Peer.channelConfig = {} - -module.exports = Peer From 932f6996442435d485f572ac1e24bd2f3c465802 Mon Sep 17 00:00:00 2001 From: Kyle Worcester-Moore <16263357+KW-M@users.noreply.github.com> Date: Tue, 1 Oct 2024 12:51:15 -0700 Subject: [PATCH 19/30] Better handling of the _iceComplete flag to support ice recovery --- full.js | 28 ++++++++++++++++++++-------- test/negotiation.js | 2 +- 2 files changed, 21 insertions(+), 9 deletions(-) diff --git a/full.js b/full.js index 1110ce99..9022cdcb 100644 --- a/full.js +++ b/full.js @@ -438,10 +438,12 @@ class Peer extends Duplex { this._debug('Already restarting ice, ignoring restartIce()') return false; } else { + this._iceComplete = false // Reset iceComplete + this._iceCompleteTimer = null // Clear iceCompleteTimeout too this._isNegotiating = false // allow renegotiation and createOffer to happen this._isRestartingIce = true; if (this._pc.restartIce) this._pc.restartIce() - this._needsNegotiation() // Terminate current negotiating cycle and start a new one + this._needsNegotiation() // Start a new negotiating cycle return true } } @@ -712,11 +714,11 @@ class Peer extends Duplex { if (this._pc.connectionState === 'failed' && !this.iceRestartEnabled) { this.__destroy(errCode(new Error('Connection failed.'), 'ERR_CONNECTION_FAILURE')) } else if (this._pc.connectionState === 'failed' && this.iceRestartEnabled) { + // Timesout and calls __destroy() after some time if we dont re-establish connection (must get called b4 restartIce()) + this._startIceFailureRecoveryTimeout() if (this.initiator && !this._isRestartingIce) { this.restartIce() } - // Timesout and calls __destroy() after some time if we haven't re-established connection - this._startIceFailureRecoveryTimeout() } else if (this._pc.connectionState === 'disconnected' && this.iceRestartEnabled === 'onDisconnect') { if (this.initiator && !this._isRestartingIce) { this.restartIce() @@ -736,22 +738,27 @@ class Peer extends Duplex { ) this.emit('iceStateChange', iceConnectionState, iceGatheringState) + if (iceGatheringState === 'complete') { + this._iceComplete = true + } + if (iceConnectionState === 'connected' || iceConnectionState === 'completed') { if (this._iceFailureRecoveryTimer) { clearTimeout(this._iceFailureRecoveryTimer) this._iceFailureRecoveryTimer = null } + this._iceComplete = true this._isRestartingIce = false this._pcReady = true this._maybeReady() } if (iceConnectionState === 'failed' && this.iceRestartEnabled) { + // Timesout and calls __destroy() after some time if we dont re-establish connection (must get called b4 restartIce()) + this._startIceFailureRecoveryTimeout() if (this.initiator && !this._isRestartingIce) { this.restartIce() } - // Timesout and calls __destroy() after some time if we haven't re-established connection - this._startIceFailureRecoveryTimeout() } else if (iceConnectionState === 'disconnected' && this.iceRestartEnabled === 'onDisconnect') { if (this.initiator && !this._isRestartingIce) { this.restartIce() @@ -1075,11 +1082,16 @@ class Peer extends Duplex { if (this.destroyed) return if (this._iceFailureRecoveryTimer) return this._debug('started iceFailureRecovery timeout') + this._iceComplete = false // Reset iceComplete + this._iceCompleteTimer = null // Clear iceCompleteTimeout too this._iceFailureRecoveryTimer = setTimeout(() => { - let hasFailedToRecover = !this._iceComplete && !(iceConnectionState === 'connected' || iceConnectionState === 'completed') + const iceConnectionState = this._pc.iceConnectionState + const iceGatheringState = this._pc.iceGatheringState + this._debug('checking iceFailureRecovery timeout', iceConnectionState, iceGatheringState, this._iceComplete) + let hasFailedToRecover = !(iceConnectionState === 'connected' || iceConnectionState === 'completed') if (hasFailedToRecover) { - this._debug('iceFailureRecovery timeout completed') - this.destroy(makeError('Ice connection failed.', 'ERR_ICE_CONNECTION_FAILURE')) + this._debug('iceFailureRecovery timeout completed - failed') + this.__destroy(errCode(new Error('Ice connection recovery failed.'), 'ERR_ICE_CONNECTION_FAILURE')) } }, this.iceFailureRecoveryTimeout) } diff --git a/test/negotiation.js b/test/negotiation.js index 8893b1fd..c71c94a8 100644 --- a/test/negotiation.js +++ b/test/negotiation.js @@ -219,7 +219,7 @@ test('renegotiation after restart', function (t) { peer2.on('stream', function () { t.pass('got peer2 stream') - peer1.restart() + peer1.restartIce() }) let tracks = 1 From 341f2ea4a6a4b35819bbc8315acf30c84747e0b5 Mon Sep 17 00:00:00 2001 From: Kyle Worcester-Moore <16263357+KW-M@users.noreply.github.com> Date: Tue, 1 Oct 2024 15:10:23 -0700 Subject: [PATCH 20/30] Make iceRestartEnabled option more explicit. Make IceFailureRecoveryTimeout option apply to manual ice restart as well. --- full.js | 62 ++++++++++++++++++++++++++++++++++++--------------------- 1 file changed, 39 insertions(+), 23 deletions(-) diff --git a/full.js b/full.js index 9022cdcb..419b8b2f 100644 --- a/full.js +++ b/full.js @@ -58,8 +58,8 @@ class Peer extends Duplex { this.iceCompleteTimeout = opts.iceCompleteTimeout || ICECOMPLETE_TIMEOUT // Ice restart often only makes sense if trickle is enabled https://github.com/feross/simple-peer/issues/579 - this.iceRestartEnabled = opts.iceRestartEnabled !== undefined ? opts.iceRestartEnabled : (this.trickle === true) - this.iceFailureRecoveryTimeout = opts.iceFailureRecoveryTimeout || ICEFAILURE_RECOVERY_TIMEOUT // how long to wait for recovery from failed state + this.iceRestartEnabled = opts.iceRestartEnabled ?? ((this.trickle === true) ? "onFailure" : false) + this.iceFailureRecoveryTimeout = opts.iceFailureRecoveryTimeout ?? ICEFAILURE_RECOVERY_TIMEOUT // how long to wait for recovery from failed state this._iceFailureRecoveryTimer = null this._destroying = false @@ -430,6 +430,16 @@ class Peer extends Duplex { this._isNegotiating = true } + /** + * Trigger an ICE Restart on the WebRTC connection. + * This will re-gather network candidates and negotiate the best network route between peers. + * Useful for re-establishing connection or improving latency between peers when networks change. + * ICE Restarts should not cause media or data pauses, unless the connection cannot be established. + * + * @warn Ice restarts are only allowed on the initiator peer! + * @returns {boolean} - Returns true if ice restart was initiated successfully; + * false if the connection is not the initiator or is already doing an ice restart. + */ restartIce () { if (!this.initiator) { this._debug('restartIce() only works for the initiator') @@ -439,7 +449,8 @@ class Peer extends Duplex { return false; } else { this._iceComplete = false // Reset iceComplete - this._iceCompleteTimer = null // Clear iceCompleteTimeout too + clearTimeout(this._iceCompleteTimer) // Clear _iceCompleteTimer too + this._iceCompleteTimer = null // Clear _iceCompleteTimer too this._isNegotiating = false // allow renegotiation and createOffer to happen this._isRestartingIce = true; if (this._pc.restartIce) this._pc.restartIce() @@ -711,15 +722,18 @@ class Peer extends Duplex { _onConnectionStateChange () { if (this.destroyed || this._destroying) return - if (this._pc.connectionState === 'failed' && !this.iceRestartEnabled) { - this.__destroy(errCode(new Error('Connection failed.'), 'ERR_CONNECTION_FAILURE')) - } else if (this._pc.connectionState === 'failed' && this.iceRestartEnabled) { - // Timesout and calls __destroy() after some time if we dont re-establish connection (must get called b4 restartIce()) - this._startIceFailureRecoveryTimeout() - if (this.initiator && !this._isRestartingIce) { - this.restartIce() + if (this._pc.connectionState === 'failed') { + if (this.iceRestartEnabled || this._isRestartingIce) { + this._startIceFailureRecoveryTimeout() + } else { + return this.__destroy(errCode(new Error('Connection failed.'), 'ERR_CONNECTION_FAILURE')) } - } else if (this._pc.connectionState === 'disconnected' && this.iceRestartEnabled === 'onDisconnect') { + } + + if ( + (this._pc.connectionState === 'failed' && this.iceRestartEnabled === 'onFailure') || + (this._pc.connectionState === 'disconnected' && this.iceRestartEnabled === 'onDisconnect') + ) { if (this.initiator && !this._isRestartingIce) { this.restartIce() } @@ -753,21 +767,21 @@ class Peer extends Duplex { this._maybeReady() } - if (iceConnectionState === 'failed' && this.iceRestartEnabled) { - // Timesout and calls __destroy() after some time if we dont re-establish connection (must get called b4 restartIce()) + if (iceConnectionState === 'closed') { + this.__destroy(errCode(new Error('Ice connection closed.'), 'ERR_ICE_CONNECTION_CLOSED')) + } else if (iceConnectionState === 'failed' && !this.iceRestartEnabled && !this._isRestartingIce) { + this.__destroy(errCode(new Error('Ice connection failed.'), 'ERR_ICE_CONNECTION_FAILURE')) + } else if (iceConnectionState === 'failed' && (this.iceRestartEnabled || this._isRestartingIce)) { this._startIceFailureRecoveryTimeout() + } + + if ( + (iceConnectionState === 'failed' && this.iceRestartEnabled === 'onFailure') || + (iceConnectionState === 'disconnected' && this.iceRestartEnabled === 'onDisconnect') + ) { if (this.initiator && !this._isRestartingIce) { this.restartIce() } - } else if (iceConnectionState === 'disconnected' && this.iceRestartEnabled === 'onDisconnect') { - if (this.initiator && !this._isRestartingIce) { - this.restartIce() - } - } else if (iceConnectionState === 'failed' && !this.iceRestartEnabled) { - this.__destroy(errCode(new Error('Ice connection failed.'), 'ERR_ICE_CONNECTION_FAILURE')) - } - if (iceConnectionState === 'closed') { - this.__destroy(errCode(new Error('Ice connection closed.'), 'ERR_ICE_CONNECTION_CLOSED')) } } @@ -1078,12 +1092,14 @@ class Peer extends Duplex { Debug.apply(null, args) } + /** Timesout and calls __destroy() after some time if we dont re-establish connection (must get called before restartIce()) */ _startIceFailureRecoveryTimeout () { if (this.destroyed) return if (this._iceFailureRecoveryTimer) return this._debug('started iceFailureRecovery timeout') this._iceComplete = false // Reset iceComplete - this._iceCompleteTimer = null // Clear iceCompleteTimeout too + clearTimeout(this._iceCompleteTimer) // Clear _iceCompleteTimer too + this._iceCompleteTimer = null // Clear _iceCompleteTimer too this._iceFailureRecoveryTimer = setTimeout(() => { const iceConnectionState = this._pc.iceConnectionState const iceGatheringState = this._pc.iceGatheringState From d3b42d47b0e222eb42b4fa0de0a85b578daf8a83 Mon Sep 17 00:00:00 2001 From: Kyle Worcester-Moore <16263357+KW-M@users.noreply.github.com> Date: Tue, 1 Oct 2024 18:49:35 -0700 Subject: [PATCH 21/30] Allow manaual restartIce() calls to restart the IceFailureRecoveryTimeout - This allows any calls to restartIce() after ice failure to continue uninterupted. --- full.js | 52 +++++++++++++++++++++++++++++++--------------------- 1 file changed, 31 insertions(+), 21 deletions(-) diff --git a/full.js b/full.js index 419b8b2f..1f20c60c 100644 --- a/full.js +++ b/full.js @@ -448,6 +448,13 @@ class Peer extends Duplex { this._debug('Already restarting ice, ignoring restartIce()') return false; } else { + if (this._iceFailureRecoveryTimer != null) { + // restart the recovery timer when restartIce() is manually called, + // this._iceFailureRecoveryTimer being non-null indicates that ice previously entered the failed state and has not recovered. + clearTimeout(this._iceFailureRecoveryTimer) + this._iceFailureRecoveryTimer = null; + this._startIceFailureRecoveryTimeout() + } this._iceComplete = false // Reset iceComplete clearTimeout(this._iceCompleteTimer) // Clear _iceCompleteTimer too this._iceCompleteTimer = null // Clear _iceCompleteTimer too @@ -459,6 +466,29 @@ class Peer extends Duplex { } } + /** + * calls __destroy() after the iceFailureRecoveryTimeout time if we dont + * re-establish connection (this function is called once ice enters the failed state) + **/ + _startIceFailureRecoveryTimeout () { + if (this.destroyed) return + if (this._iceFailureRecoveryTimer != null) return + this._debug('started iceFailureRecovery timeout') + this._iceComplete = false // Reset iceComplete + clearTimeout(this._iceCompleteTimer) // Clear _iceCompleteTimer too + this._iceCompleteTimer = null // Clear _iceCompleteTimer too + this._iceFailureRecoveryTimer = setTimeout(() => { + const iceConnectionState = this._pc.iceConnectionState + const iceGatheringState = this._pc.iceGatheringState + this._debug('checking iceFailureRecovery timeout', iceConnectionState, iceGatheringState, this._iceComplete) + let hasFailedToRecover = !(iceConnectionState === 'connected' || iceConnectionState === 'completed') + if (hasFailedToRecover) { + this._debug('iceFailureRecovery timeout completed - failed') + this.__destroy(errCode(new Error('Ice connection recovery failed.'), 'ERR_ICE_CONNECTION_FAILURE')) + } + }, this.iceFailureRecoveryTimeout) + } + _final (cb) { if (!this._readableState.ended) this.push(null) cb(null) @@ -757,7 +787,7 @@ class Peer extends Duplex { } if (iceConnectionState === 'connected' || iceConnectionState === 'completed') { - if (this._iceFailureRecoveryTimer) { + if (this._iceFailureRecoveryTimer != null) { clearTimeout(this._iceFailureRecoveryTimer) this._iceFailureRecoveryTimer = null } @@ -1091,26 +1121,6 @@ class Peer extends Duplex { args[0] = '[' + this._id + '] ' + args[0] Debug.apply(null, args) } - - /** Timesout and calls __destroy() after some time if we dont re-establish connection (must get called before restartIce()) */ - _startIceFailureRecoveryTimeout () { - if (this.destroyed) return - if (this._iceFailureRecoveryTimer) return - this._debug('started iceFailureRecovery timeout') - this._iceComplete = false // Reset iceComplete - clearTimeout(this._iceCompleteTimer) // Clear _iceCompleteTimer too - this._iceCompleteTimer = null // Clear _iceCompleteTimer too - this._iceFailureRecoveryTimer = setTimeout(() => { - const iceConnectionState = this._pc.iceConnectionState - const iceGatheringState = this._pc.iceGatheringState - this._debug('checking iceFailureRecovery timeout', iceConnectionState, iceGatheringState, this._iceComplete) - let hasFailedToRecover = !(iceConnectionState === 'connected' || iceConnectionState === 'completed') - if (hasFailedToRecover) { - this._debug('iceFailureRecovery timeout completed - failed') - this.__destroy(errCode(new Error('Ice connection recovery failed.'), 'ERR_ICE_CONNECTION_FAILURE')) - } - }, this.iceFailureRecoveryTimeout) - } } Peer.WEBRTC_SUPPORT = !!RTCPeerConnection From a987286973995db052457ede873c2c580ff3577b Mon Sep 17 00:00:00 2001 From: Kyle Worcester-Moore <16263357+KW-M@users.noreply.github.com> Date: Thu, 24 Oct 2024 10:32:16 -0700 Subject: [PATCH 22/30] fix: _iceComplete event not emmited with trickle disabled & varous checks for destryed & _destroying. --- full.js | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/full.js b/full.js index 1f20c60c..8cf8f417 100644 --- a/full.js +++ b/full.js @@ -57,8 +57,9 @@ class Peer extends Duplex { this.allowHalfTrickle = opts.allowHalfTrickle !== undefined ? opts.allowHalfTrickle : false this.iceCompleteTimeout = opts.iceCompleteTimeout || ICECOMPLETE_TIMEOUT - // Ice restart often only makes sense if trickle is enabled https://github.com/feross/simple-peer/issues/579 - this.iceRestartEnabled = opts.iceRestartEnabled ?? ((this.trickle === true) ? "onFailure" : false) + // Ice restart often only makes sense if trickle is enabled, and isn't currently supported in wrtc node polyfill https://github.com/feross/simple-peer/issues/579 + this.iceRestartEnabled = opts.iceRestartEnabled ?? ((this.trickle === true && !opts.wrtc) ? "onFailure" : false) + if (this.iceRestartEnabled === true) this.iceRestartEnabled = "onFailure" // default to "onFailure" if user mistakenly passes true instead of a string this.iceFailureRecoveryTimeout = opts.iceFailureRecoveryTimeout ?? ICEFAILURE_RECOVERY_TIMEOUT // how long to wait for recovery from failed state this._iceFailureRecoveryTimer = null @@ -441,6 +442,7 @@ class Peer extends Duplex { * false if the connection is not the initiator or is already doing an ice restart. */ restartIce () { + if (this.destroyed || this._destroying) return false; if (!this.initiator) { this._debug('restartIce() only works for the initiator') return false; @@ -449,8 +451,8 @@ class Peer extends Duplex { return false; } else { if (this._iceFailureRecoveryTimer != null) { - // restart the recovery timer when restartIce() is manually called, - // this._iceFailureRecoveryTimer being non-null indicates that ice previously entered the failed state and has not recovered. + // Restart the recovery timer when restartIce() is manually called, + // Note: this._iceFailureRecoveryTimer being non-null indicates that ice previously entered the failed state and has not recovered by now. clearTimeout(this._iceFailureRecoveryTimer) this._iceFailureRecoveryTimer = null; this._startIceFailureRecoveryTimeout() @@ -471,7 +473,7 @@ class Peer extends Duplex { * re-establish connection (this function is called once ice enters the failed state) **/ _startIceFailureRecoveryTimeout () { - if (this.destroyed) return + if (this.destroyed || this._destroying) return if (this._iceFailureRecoveryTimer != null) return this._debug('started iceFailureRecovery timeout') this._iceComplete = false // Reset iceComplete @@ -784,6 +786,7 @@ class Peer extends Duplex { if (iceGatheringState === 'complete') { this._iceComplete = true + this.emit('_iceComplete') } if (iceConnectionState === 'connected' || iceConnectionState === 'completed') { @@ -791,10 +794,11 @@ class Peer extends Duplex { clearTimeout(this._iceFailureRecoveryTimer) this._iceFailureRecoveryTimer = null } - this._iceComplete = true - this._isRestartingIce = false this._pcReady = true + this._iceComplete = true + this.emit('_iceComplete') this._maybeReady() + this._isRestartingIce = false } if (iceConnectionState === 'closed') { @@ -866,7 +870,7 @@ class Peer extends Duplex { _maybeReady () { this._debug('maybeReady pc %s channel %s', this._pcReady, this._channelReady) - if (((this._connected || this._connecting) && !this._isRestartingIce) || !this._pcReady || !this._channelReady) return + if ((this._connected && !this._isRestartingIce) || this._connecting || !this._pcReady || !this._channelReady) return this._connecting = true From 159d39bc52e52284a8e214189342081d4094a0c8 Mon Sep 17 00:00:00 2001 From: Kyle Worcester-Moore <16263357+KW-M@users.noreply.github.com> Date: Thu, 24 Oct 2024 21:07:50 -0700 Subject: [PATCH 23/30] Update README to show new ICE Restart options. --- README.md | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/README.md b/README.md index 6a20dc8a..74b536db 100644 --- a/README.md +++ b/README.md @@ -279,7 +279,9 @@ If `opts` is specified, then the default options (shown below) will be overridde trickle: true, allowHalfTrickle: false, wrtc: {}, // RTCPeerConnection/RTCSessionDescription/RTCIceCandidate - objectMode: false + objectMode: false, + iceRestartEnabled: "onFailure", + iceFailureRecoveryTimeout: 5000 } ``` @@ -302,6 +304,13 @@ The options do the following: - `objectMode` - set to `true` to create the stream in [Object Mode](https://nodejs.org/api/stream.html#stream_object_mode). In this mode, incoming string data is not automatically converted to `Buffer` objects. +- `iceRestartEnabled` - attempt to automatically reconnect if the network path between peers changes. Warning: may crash firefox versions <= 47 + - Set to "onDisconnect" to attempt reconnection when ICE state changes to disconnected (connection dropped temporarily and may not need restart) + - Set to "onFailure" to trigger reconnection when ICE state changes to failed (connection path fully broken, reconnection required). + - Set to `false` to disable automatic ICE restart - ICE restart can still be triggered manually using `peer.restartIce()` + +- `iceFailureRecoveryTimeout` - miliseconds to wait for ICE restart to complete after the ICE state reaches "failed". + ### `peer.signal(data)` Call this method whenever the remote peer emits a `peer.on('signal')` event. From 1b563bbe897f282155427446cceffad4aa7509f3 Mon Sep 17 00:00:00 2001 From: Kyle Worcester-Moore <16263357+KW-M@users.noreply.github.com> Date: Thu, 24 Oct 2024 21:09:40 -0700 Subject: [PATCH 24/30] Improve JSDoc comments and typing for better editor intelisense. --- full.js | 42 +++++++++++++++++++++++++++++++++--------- 1 file changed, 33 insertions(+), 9 deletions(-) diff --git a/full.js b/full.js index 8cf8f417..f822c692 100644 --- a/full.js +++ b/full.js @@ -5,6 +5,27 @@ import { Duplex } from 'streamx' import errCode from 'err-code' import { randomBytes, arr2hex, text2arr } from 'uint8-util' +/** Type Definitions + * Simple Peer Options: + * @typedef {{ + * initiator: boolean; + * channelName?: string; + * channelConfig?: RTCDataChannelInit; + * config?: RTCConfiguration; + * offerOptions?: RTCOfferOptions; + * answerOptions?: RTCAnswerOptions; + * sdpTransform?: (string) => string; + * wrtc?: { RTCPeerConnection: function, RTCSessionDescription: function, RTCIceCandidate: function }; + * stream?: false | MediaStream; + * streams?: MediaStream[]; + * trickle?: boolean; + * allowHalfTrickle?: boolean; + * objectMode?: boolean; + * iceRestartEnabled?: false | "onFailure" | "onDisconnect"; + * iceFailureRecoveryTimeout?: number; //miliseconds to wait for ice restart to complete after the ice state reaches "failed". + * }} SimplePeerOptions + */ + const Debug = debug('simple-peer') const MAX_BUFFERED_AMOUNT = 64 * 1024 @@ -24,11 +45,16 @@ function warn (message) { /** * WebRTC peer connection. Same API as node core `net.Socket`, plus a few extra methods. * Duplex stream. - * @param {Object} opts + * @param {SimplePeerOptions} opts */ class Peer extends Duplex { + /** @type {RTCPeerConnection} */ _pc + + /** Create a new Simple Peer instance. + * @param {SimplePeerOptions} opts + */ constructor (opts) { opts = Object.assign({ allowHalfOpen: false @@ -433,13 +459,11 @@ class Peer extends Duplex { /** * Trigger an ICE Restart on the WebRTC connection. - * This will re-gather network candidates and negotiate the best network route between peers. + * This will re-gather network candidates and find the best network route between peers. * Useful for re-establishing connection or improving latency between peers when networks change. - * ICE Restarts should not cause media or data pauses, unless the connection cannot be established. - * + * ICE Restarts should not cause media or data pauses, unless the connection cannot be re-established. * @warn Ice restarts are only allowed on the initiator peer! - * @returns {boolean} - Returns true if ice restart was initiated successfully; - * false if the connection is not the initiator or is already doing an ice restart. + * @returns {boolean} - Returns true if ice restart was initiated successfully; false if conditions aren't met for ice restart (not the initiator, already restarting ice, destroyed(ing) peer). */ restartIce () { if (this.destroyed || this._destroying) return false; @@ -452,7 +476,7 @@ class Peer extends Duplex { } else { if (this._iceFailureRecoveryTimer != null) { // Restart the recovery timer when restartIce() is manually called, - // Note: this._iceFailureRecoveryTimer being non-null indicates that ice previously entered the failed state and has not recovered by now. + // Note: this._iceFailureRecoveryTimer being non-null indicates that ice has previously entered the failed state and has not recovered by now. clearTimeout(this._iceFailureRecoveryTimer) this._iceFailureRecoveryTimer = null; this._startIceFailureRecoveryTimeout() @@ -628,8 +652,8 @@ class Peer extends Duplex { } } - // When stream finishes writing, close socket. Half open connections are not - // supported. + /** When stream finishes writing, close socket. Half open connections are not + supported. */ _onFinish () { if (this.destroyed) return From e3d81aa03ac3b2c768817cb73784645d3ec1a88c Mon Sep 17 00:00:00 2001 From: Kyle Worcester-Moore <16263357+KW-M@users.noreply.github.com> Date: Sat, 26 Oct 2024 16:38:10 -0700 Subject: [PATCH 25/30] allow _maybeReady() to run again after initial connection for updating canidates after ice reconnection. add 'reconnect' event to better signal this event. rename _iceComplete flag to _iceGatheringComplete to better reflect its purpose. --- README.md | 6 ++++ full.js | 94 ++++++++++++++++++++++++++++++++++--------------------- 2 files changed, 64 insertions(+), 36 deletions(-) diff --git a/README.md b/README.md index 74b536db..c712f6a4 100644 --- a/README.md +++ b/README.md @@ -441,6 +441,12 @@ peer.on('stream', stream => { Received a remote audio/video track. Streams may contain multiple tracks. +### `peer.on('reconnect', () => {})` + +Fired when the peer connection has been re-established after a temporary disconnection due to network changes (ICE Restart) or, in some cases, successful renegotiation. + +The connection is ready to use. The local and remote network canidates & IP addresses may have changed. + ### `peer.on('close', () => {})` Called when the peer connection has closed. diff --git a/full.js b/full.js index f822c692..c12133f5 100644 --- a/full.js +++ b/full.js @@ -91,6 +91,8 @@ class Peer extends Duplex { this._destroying = false this._connected = false + this._connecting = false + this._connectedOnce = false this.remoteAddress = undefined this.remoteFamily = undefined @@ -109,13 +111,13 @@ class Peer extends Duplex { this._pcReady = false this._channelReady = false - this._iceComplete = false // ice candidate trickle done (got null candidate) - this._iceCompleteTimer = null // send an offer/answer anyway after some timeout + this._iceGatheringComplete = false // ice candidate trickle done (got null candidate) + this._iceGatheringCompleteTimer = null // send an offer/answer anyway after some timeout this._channel = null this._pendingCandidates = [] this._isNegotiating = false // is this peer waiting for negotiation to complete? - this._isRestartingIce = false // turned true while restarting and false when connected + this._isRestartingIce = false // is true while restarting ice and false once connected (only on initiator side) this._firstNegotiation = true this._batchedNegotiation = false // batch synchronous negotiations this._queuedNegotiation = false // is there a queued negotiation request? @@ -474,6 +476,7 @@ class Peer extends Duplex { this._debug('Already restarting ice, ignoring restartIce()') return false; } else { + this._debug('Restarting ICE') if (this._iceFailureRecoveryTimer != null) { // Restart the recovery timer when restartIce() is manually called, // Note: this._iceFailureRecoveryTimer being non-null indicates that ice has previously entered the failed state and has not recovered by now. @@ -481,9 +484,9 @@ class Peer extends Duplex { this._iceFailureRecoveryTimer = null; this._startIceFailureRecoveryTimeout() } - this._iceComplete = false // Reset iceComplete - clearTimeout(this._iceCompleteTimer) // Clear _iceCompleteTimer too - this._iceCompleteTimer = null // Clear _iceCompleteTimer too + this._iceGatheringComplete = false // Reset iceComplete + clearTimeout(this._iceGatheringCompleteTimer) // Clear _iceGatheringCompleteTimer too + this._iceGatheringCompleteTimer = null // Clear _iceGatheringCompleteTimer too this._isNegotiating = false // allow renegotiation and createOffer to happen this._isRestartingIce = true; if (this._pc.restartIce) this._pc.restartIce() @@ -500,13 +503,13 @@ class Peer extends Duplex { if (this.destroyed || this._destroying) return if (this._iceFailureRecoveryTimer != null) return this._debug('started iceFailureRecovery timeout') - this._iceComplete = false // Reset iceComplete - clearTimeout(this._iceCompleteTimer) // Clear _iceCompleteTimer too - this._iceCompleteTimer = null // Clear _iceCompleteTimer too + this._iceGatheringComplete = false // Reset iceComplete + clearTimeout(this._iceGatheringCompleteTimer) // Clear _iceGatheringCompleteTimer too + this._iceGatheringCompleteTimer = null // Clear _iceGatheringCompleteTimer too this._iceFailureRecoveryTimer = setTimeout(() => { const iceConnectionState = this._pc.iceConnectionState const iceGatheringState = this._pc.iceGatheringState - this._debug('checking iceFailureRecovery timeout', iceConnectionState, iceGatheringState, this._iceComplete) + this._debug('checking iceFailureRecovery timeout', iceConnectionState, iceGatheringState, this._iceGatheringComplete) let hasFailedToRecover = !(iceConnectionState === 'connected' || iceConnectionState === 'completed') if (hasFailedToRecover) { this._debug('iceFailureRecovery timeout completed - failed') @@ -672,14 +675,13 @@ class Peer extends Duplex { _startIceCompleteTimeout () { if (this.destroyed) return - if (this._iceCompleteTimer) return + if (this._iceGatheringCompleteTimer) return this._debug('started iceComplete timeout') - this._iceCompleteTimer = setTimeout(() => { - if (!this._iceComplete) { - this._iceComplete = true + this._iceGatheringCompleteTimer = setTimeout(() => { + if (!this._iceGatheringComplete) { this._debug('iceComplete timeout completed') this.emit('iceTimeout') - this.emit('_iceComplete') + this._onIceGatheringComplete(); } }, this.iceCompleteTimeout) } @@ -709,8 +711,8 @@ class Peer extends Duplex { const onSuccess = () => { this._debug('createOffer success') if (this.destroyed) return - if (this.trickle || this._iceComplete) sendOffer() - else this.once('_iceComplete', sendOffer) // wait for candidates + if (this.trickle || this._iceGatheringComplete) sendOffer() + else this.once('_iceGatheringComplete', sendOffer) // wait for candidates } const onError = err => { @@ -759,8 +761,8 @@ class Peer extends Duplex { const onSuccess = () => { if (this.destroyed) return - if (this.trickle || this._iceComplete) sendAnswer() - else this.once('_iceComplete', sendAnswer) + if (this.trickle || this._iceGatheringComplete) sendAnswer() + else this.once('_iceGatheringComplete', sendAnswer) } const onError = err => { @@ -778,6 +780,12 @@ class Peer extends Duplex { _onConnectionStateChange () { if (this.destroyed || this._destroying) return + this._debug('_onConnectionStateChange ' + this._pc.connectionState) + + if (this._pc.connectionState !== "connected") { + this._connected = false + } + if (this._pc.connectionState === 'failed') { if (this.iceRestartEnabled || this._isRestartingIce) { this._startIceFailureRecoveryTimeout() @@ -809,8 +817,7 @@ class Peer extends Duplex { this.emit('iceStateChange', iceConnectionState, iceGatheringState) if (iceGatheringState === 'complete') { - this._iceComplete = true - this.emit('_iceComplete') + this._onIceGatheringComplete(); } if (iceConnectionState === 'connected' || iceConnectionState === 'completed') { @@ -819,10 +826,8 @@ class Peer extends Duplex { this._iceFailureRecoveryTimer = null } this._pcReady = true - this._iceComplete = true - this.emit('_iceComplete') - this._maybeReady() this._isRestartingIce = false + this._maybeReady() } if (iceConnectionState === 'closed') { @@ -843,6 +848,16 @@ class Peer extends Duplex { } } + _onIceGatheringComplete () { + if (!this._iceGatheringComplete) { + this._debug('iceGatheringComplete') + this._iceGatheringComplete = true + this.emit('_iceGatheringComplete') + clearTimeout(this._iceGatheringCompleteTimer) + this._iceGatheringCompleteTimer = null + } + } + getStats (cb) { // statreports can come with a value array instead of properties const flattenValues = report => { @@ -894,7 +909,7 @@ class Peer extends Duplex { _maybeReady () { this._debug('maybeReady pc %s channel %s', this._pcReady, this._channelReady) - if ((this._connected && !this._isRestartingIce) || this._connecting || !this._pcReady || !this._channelReady) return + if (this._connecting || !this._pcReady || !this._channelReady) return this._connecting = true @@ -1018,15 +1033,22 @@ class Peer extends Duplex { cb(null) } - // If `bufferedAmountLowThreshold` and 'onbufferedamountlow' are unsupported, - // fallback to using setInterval to implement backpressure. - if (typeof this._channel.bufferedAmountLowThreshold !== 'number') { - this._interval = setInterval(() => this._onInterval(), 150) - if (this._interval.unref) this._interval.unref() - } + if (!this._connectedOnce) { + this._connectedOnce = true - this._debug('connect') - this.emit('connect') + // If `bufferedAmountLowThreshold` and 'onbufferedamountlow' are unsupported, + // fallback to using setInterval to implement backpressure. + if (typeof this._channel.bufferedAmountLowThreshold !== 'number') { + this._interval = setInterval(() => this._onInterval(), 150) + if (this._interval.unref) this._interval.unref() + } + + this._debug('connect') + this.emit('connect') + } else { + this._debug('reconnect') + this.emit('reconnect') + } }) } findCandidatePair() @@ -1078,9 +1100,9 @@ class Peer extends Duplex { sdpMid: event.candidate.sdpMid } }) - } else if (!event.candidate && !this._iceComplete) { - this._iceComplete = true - this.emit('_iceComplete') + } else if (!event.candidate && !this._iceGatheringComplete) { + // a null ICE candidate indicates that the ice gathering process is finished + this._onIceGatheringComplete() } // as soon as we've received one valid candidate start timeout if (event.candidate) { From cc7bca6ce2db54a311af800076614252eea7f76d Mon Sep 17 00:00:00 2001 From: Kyle Worcester-Moore <16263357+KW-M@users.noreply.github.com> Date: Sat, 26 Oct 2024 17:09:38 -0700 Subject: [PATCH 26/30] Copy ice restart changes from full.js to lite.js --- lite.js | 201 ++++++++++++++++++++++++++++++++++++++++++++++---------- 1 file changed, 165 insertions(+), 36 deletions(-) diff --git a/lite.js b/lite.js index d8b15b8c..159f5d71 100644 --- a/lite.js +++ b/lite.js @@ -10,6 +10,7 @@ const Debug = debug('simple-peer') const MAX_BUFFERED_AMOUNT = 64 * 1024 const ICECOMPLETE_TIMEOUT = 5 * 1000 const CHANNEL_CLOSING_TIMEOUT = 5 * 1000 +const ICEFAILURE_RECOVERY_TIMEOUT = 5 * 1000 // HACK: Filter trickle lines when trickle is disabled #354 function filterTrickle (sdp) { @@ -26,8 +27,10 @@ function warn (message) { * @param {Object} opts */ class Peer extends Duplex { + /** @type {RTCPeerConnection} */ _pc + constructor (opts) { opts = Object.assign({ allowHalfOpen: false @@ -54,9 +57,16 @@ class Peer extends Duplex { this.trickle = opts.trickle !== undefined ? opts.trickle : true this.allowHalfTrickle = opts.allowHalfTrickle !== undefined ? opts.allowHalfTrickle : false this.iceCompleteTimeout = opts.iceCompleteTimeout || ICECOMPLETE_TIMEOUT + // Ice restart often only makes sense if trickle is enabled, and isn't currently supported in wrtc node polyfill https://github.com/feross/simple-peer/issues/579 + this.iceRestartEnabled = opts.iceRestartEnabled ?? ((this.trickle === true && !opts.wrtc) ? "onFailure" : false) + if (this.iceRestartEnabled === true) this.iceRestartEnabled = "onFailure" // default to "onFailure" if user mistakenly passes true instead of a string + this.iceFailureRecoveryTimeout = opts.iceFailureRecoveryTimeout ?? ICEFAILURE_RECOVERY_TIMEOUT // how long to wait for recovery from failed state + this._iceFailureRecoveryTimer = null this._destroying = false this._connected = false + this._connecting = false + this._connectedOnce = false this.remoteAddress = undefined this.remoteFamily = undefined @@ -75,12 +85,13 @@ class Peer extends Duplex { this._pcReady = false this._channelReady = false - this._iceComplete = false // ice candidate trickle done (got null candidate) - this._iceCompleteTimer = null // send an offer/answer anyway after some timeout + this._iceGatheringComplete = false // ice candidate trickle done (got null candidate) + this._iceGatheringCompleteTimer = null // send an offer/answer anyway after some timeout this._channel = null this._pendingCandidates = [] this._isNegotiating = false // is this peer waiting for negotiation to complete? + this._isRestartingIce = false // is true while restarting ice and false once connected (only on initiator side) this._firstNegotiation = true this._batchedNegotiation = false // batch synchronous negotiations this._queuedNegotiation = false // is there a queued negotiation request? @@ -282,6 +293,66 @@ class Peer extends Duplex { this._isNegotiating = true } + /** + * Trigger an ICE Restart on the WebRTC connection. + * This will re-gather network candidates and find the best network route between peers. + * Useful for re-establishing connection or improving latency between peers when networks change. + * ICE Restarts should not cause media or data pauses, unless the connection cannot be re-established. + * @warn Ice restarts are only allowed on the initiator peer! + * @returns {boolean} - Returns true if ice restart was initiated successfully; false if conditions aren't met for ice restart (not the initiator, already restarting ice, destroyed(ing) peer). + */ + restartIce () { + if (this.destroyed || this._destroying) return false; + if (!this.initiator) { + this._debug('restartIce() only works for the initiator') + return false; + } if (this._isRestartingIce) { + this._debug('Already restarting ice, ignoring restartIce()') + return false; + } else { + this._debug('Restarting ICE') + if (this._iceFailureRecoveryTimer != null) { + // Restart the recovery timer when restartIce() is manually called, + // Note: this._iceFailureRecoveryTimer being non-null indicates that ice has previously entered the failed state and has not recovered by now. + clearTimeout(this._iceFailureRecoveryTimer) + this._iceFailureRecoveryTimer = null; + this._startIceFailureRecoveryTimeout() + } + this._iceGatheringComplete = false // Reset iceComplete + clearTimeout(this._iceGatheringCompleteTimer) // Clear _iceGatheringCompleteTimer too + this._iceGatheringCompleteTimer = null // Clear _iceGatheringCompleteTimer too + this._isNegotiating = false // allow renegotiation and createOffer to happen + this._isRestartingIce = true; + if (this._pc.restartIce) this._pc.restartIce() + this._needsNegotiation() // Start a new negotiating cycle + return true + } + } + + /** + * calls __destroy() after the iceFailureRecoveryTimeout time if we dont + * re-establish connection (this function is called once ice enters the failed state) + **/ + _startIceFailureRecoveryTimeout () { + if (this.destroyed || this._destroying) return + if (this._iceFailureRecoveryTimer != null) return + this._debug('started iceFailureRecovery timeout') + this._iceGatheringComplete = false // Reset iceComplete + clearTimeout(this._iceGatheringCompleteTimer) // Clear _iceGatheringCompleteTimer too + this._iceGatheringCompleteTimer = null // Clear _iceGatheringCompleteTimer too + this._iceFailureRecoveryTimer = setTimeout(() => { + const iceConnectionState = this._pc.iceConnectionState + const iceGatheringState = this._pc.iceGatheringState + this._debug('checking iceFailureRecovery timeout', iceConnectionState, iceGatheringState, this._iceGatheringComplete) + let hasFailedToRecover = !(iceConnectionState === 'connected' || iceConnectionState === 'completed') + if (hasFailedToRecover) { + this._debug('iceFailureRecovery timeout completed - failed') + this.__destroy(errCode(new Error('Ice connection recovery failed.'), 'ERR_ICE_CONNECTION_FAILURE')) + } + }, this.iceFailureRecoveryTimeout) + } + + _final (cb) { if (!this._readableState.ended) this.push(null) cb(null) @@ -289,7 +360,7 @@ class Peer extends Duplex { __destroy (err) { this.end() - this._destroy(() => {}, err) + this._destroy(() => { }, err) } _destroy (cb, err) { @@ -320,7 +391,7 @@ class Peer extends Duplex { if (this._channel) { try { this._channel.close() - } catch (err) {} + } catch (err) { } // allow events concurrent with destruction to be handled this._channel.onmessage = null @@ -331,7 +402,7 @@ class Peer extends Duplex { if (this._pc) { try { this._pc.close() - } catch (err) {} + } catch (err) { } // allow events concurrent with destruction to be handled this._pc.oniceconnectionstatechange = null @@ -419,8 +490,8 @@ class Peer extends Duplex { } } - // When stream finishes writing, close socket. Half open connections are not - // supported. + /** When stream finishes writing, close socket. Half open connections are not + supported. */ _onFinish () { if (this.destroyed) return @@ -439,14 +510,13 @@ class Peer extends Duplex { _startIceCompleteTimeout () { if (this.destroyed) return - if (this._iceCompleteTimer) return + if (this._iceGatheringCompleteTimer) return this._debug('started iceComplete timeout') - this._iceCompleteTimer = setTimeout(() => { - if (!this._iceComplete) { - this._iceComplete = true + this._iceGatheringCompleteTimer = setTimeout(() => { + if (!this._iceGatheringComplete) { this._debug('iceComplete timeout completed') this.emit('iceTimeout') - this.emit('_iceComplete') + this._onIceGatheringComplete(); } }, this.iceCompleteTimeout) } @@ -454,7 +524,10 @@ class Peer extends Duplex { _createOffer () { if (this.destroyed) return - this._pc.createOffer(this.offerOptions) + const offerOptions = Object.assign({}, this.offerOptions) // copy offer options + if (this._isRestartingIce) this.offerOptions.iceRestart = true + + this._pc.createOffer(offerOptions) .then(offer => { if (this.destroyed) return if (!this.trickle && !this.allowHalfTrickle) offer.sdp = filterTrickle(offer.sdp) @@ -473,8 +546,8 @@ class Peer extends Duplex { const onSuccess = () => { this._debug('createOffer success') if (this.destroyed) return - if (this.trickle || this._iceComplete) sendOffer() - else this.once('_iceComplete', sendOffer) // wait for candidates + if (this.trickle || this._iceGatheringComplete) sendOffer() + else this.once('_iceGatheringComplete', sendOffer) // wait for candidates } const onError = err => { @@ -512,8 +585,8 @@ class Peer extends Duplex { const onSuccess = () => { if (this.destroyed) return - if (this.trickle || this._iceComplete) sendAnswer() - else this.once('_iceComplete', sendAnswer) + if (this.trickle || this._iceGatheringComplete) sendAnswer() + else this.once('_iceGatheringComplete', sendAnswer) } const onError = err => { @@ -531,8 +604,27 @@ class Peer extends Duplex { _onConnectionStateChange () { if (this.destroyed || this._destroying) return + this._debug('_onConnectionStateChange ' + this._pc.connectionState) + + if (this._pc.connectionState !== "connected") { + this._connected = false + } + if (this._pc.connectionState === 'failed') { - this.__destroy(errCode(new Error('Connection failed.'), 'ERR_CONNECTION_FAILURE')) + if (this.iceRestartEnabled || this._isRestartingIce) { + this._startIceFailureRecoveryTimeout() + } else { + return this.__destroy(errCode(new Error('Connection failed.'), 'ERR_CONNECTION_FAILURE')) + } + } + + if ( + (this._pc.connectionState === 'failed' && this.iceRestartEnabled === 'onFailure') || + (this._pc.connectionState === 'disconnected' && this.iceRestartEnabled === 'onDisconnect') + ) { + if (this.initiator && !this._isRestartingIce) { + this.restartIce() + } } } @@ -548,15 +640,45 @@ class Peer extends Duplex { ) this.emit('iceStateChange', iceConnectionState, iceGatheringState) + if (iceGatheringState === 'complete') { + this._onIceGatheringComplete(); + } + if (iceConnectionState === 'connected' || iceConnectionState === 'completed') { + if (this._iceFailureRecoveryTimer != null) { + clearTimeout(this._iceFailureRecoveryTimer) + this._iceFailureRecoveryTimer = null + } this._pcReady = true + this._isRestartingIce = false this._maybeReady() } - if (iceConnectionState === 'failed') { - this.__destroy(errCode(new Error('Ice connection failed.'), 'ERR_ICE_CONNECTION_FAILURE')) - } + if (iceConnectionState === 'closed') { this.__destroy(errCode(new Error('Ice connection closed.'), 'ERR_ICE_CONNECTION_CLOSED')) + } else if (iceConnectionState === 'failed' && !this.iceRestartEnabled && !this._isRestartingIce) { + this.__destroy(errCode(new Error('Ice connection failed.'), 'ERR_ICE_CONNECTION_FAILURE')) + } else if (iceConnectionState === 'failed' && (this.iceRestartEnabled || this._isRestartingIce)) { + this._startIceFailureRecoveryTimeout() + } + + if ( + (iceConnectionState === 'failed' && this.iceRestartEnabled === 'onFailure') || + (iceConnectionState === 'disconnected' && this.iceRestartEnabled === 'onDisconnect') + ) { + if (this.initiator && !this._isRestartingIce) { + this.restartIce() + } + } + } + + _onIceGatheringComplete () { + if (!this._iceGatheringComplete) { + this._debug('iceGatheringComplete') + this._iceGatheringComplete = true + this.emit('_iceGatheringComplete') + clearTimeout(this._iceGatheringCompleteTimer) + this._iceGatheringCompleteTimer = null } } @@ -582,7 +704,7 @@ class Peer extends Duplex { cb(null, reports) }, err => cb(err)) - // Single-parameter callback-based getStats() (non-standard) + // Single-parameter callback-based getStats() (non-standard) } else if (this._pc.getStats.length > 0) { this._pc.getStats(res => { // If we destroy connection in `connect` callback this code might happen to run when actual connection is already closed @@ -602,8 +724,8 @@ class Peer extends Duplex { cb(null, reports) }, err => cb(err)) - // Unknown browser, skip getStats() since it's anyone's guess which style of - // getStats() they implement. + // Unknown browser, skip getStats() since it's anyone's guess which style of + // getStats() they implement. } else { cb(null, []) } @@ -611,7 +733,7 @@ class Peer extends Duplex { _maybeReady () { this._debug('maybeReady pc %s channel %s', this._pcReady, this._channelReady) - if (this._connected || this._connecting || !this._pcReady || !this._channelReady) return + if (this._connecting || !this._pcReady || !this._channelReady) return this._connecting = true @@ -735,15 +857,22 @@ class Peer extends Duplex { cb(null) } - // If `bufferedAmountLowThreshold` and 'onbufferedamountlow' are unsupported, - // fallback to using setInterval to implement backpressure. - if (typeof this._channel.bufferedAmountLowThreshold !== 'number') { - this._interval = setInterval(() => this._onInterval(), 150) - if (this._interval.unref) this._interval.unref() - } + if (!this._connectedOnce) { + this._connectedOnce = true + + // If `bufferedAmountLowThreshold` and 'onbufferedamountlow' are unsupported, + // fallback to using setInterval to implement backpressure. + if (typeof this._channel.bufferedAmountLowThreshold !== 'number') { + this._interval = setInterval(() => this._onInterval(), 150) + if (this._interval.unref) this._interval.unref() + } - this._debug('connect') - this.emit('connect') + this._debug('connect') + this.emit('connect') + } else { + this._debug('reconnect') + this.emit('reconnect') + } }) } findCandidatePair() @@ -795,9 +924,9 @@ class Peer extends Duplex { sdpMid: event.candidate.sdpMid } }) - } else if (!event.candidate && !this._iceComplete) { - this._iceComplete = true - this.emit('_iceComplete') + } else if (!event.candidate && !this._iceGatheringComplete) { + // a null ICE candidate indicates that the ice gathering process is finished + this._onIceGatheringComplete() } // as soon as we've received one valid candidate start timeout if (event.candidate) { From 8511707a9496efb74f94811bac00810cee937fc3 Mon Sep 17 00:00:00 2001 From: Kyle Worcester-Moore <16263357+KW-M@users.noreply.github.com> Date: Sat, 26 Oct 2024 17:11:21 -0700 Subject: [PATCH 27/30] Update ice restart test case. All tests passing on MacOS latest Firefox, Chromium, Safari, & Brave --- test/negotiation.js | 106 +++++++++++++++++++++++++++++++++++--------- 1 file changed, 85 insertions(+), 21 deletions(-) diff --git a/test/negotiation.js b/test/negotiation.js index c71c94a8..ed75b300 100644 --- a/test/negotiation.js +++ b/test/negotiation.js @@ -193,11 +193,16 @@ test('negotiated channels', function (t) { }) }) -test('renegotiation after restart', function (t) { - t.plan(4) +test('ice restart causes renegotiation', function (t) { + if (!process.browser) return t.end() + t.plan(8) + t.timeoutAfter(20000) + + const peer1 = new Peer({ initiator: true, iceRestartEnabled: "onDisconnect" }) + const peer2 = new Peer({ iceRestartEnabled: "onDisconnect" }) - const peer1 = new Peer({ config, initiator: true, wrtc: common.wrtc }) - const peer2 = new Peer({ config, wrtc: common.wrtc }) + // peer1._debug = (...args) => { console.log('peer1 ' + args.shift(), ...args) } + // peer2._debug = (...args) => { console.log('peer2 ' + args.shift(), ...args) } peer1.on('signal', function (data) { if (!peer2.destroyed) peer2.signal(data) @@ -206,24 +211,83 @@ test('renegotiation after restart', function (t) { if (!peer1.destroyed) peer1.signal(data) }) - peer1.on('connect', function () { - peer1.addStream(common.getMediaStream()) - }) - peer2.on('connect', function () { - peer2.addStream(common.getMediaStream()) - }) + peer1.once('connect', tryTest) + peer2.once('connect', tryTest) - peer1.on('stream', function () { - t.pass('got peer1 stream') - }) + function tryTest () { + if (!peer1.connected || !peer2.connected) return - peer2.on('stream', function () { - t.pass('got peer2 stream') - peer1.restartIce() - }) + peer1.restartIce(); + setTimeout(() => { + t.equal(peer1.restartIce(), false, 'peer1 calling restartIce() again in quick succession should return false because we are already restarting ice') + }, 0) // test that calling restartIce multiple times doesn't break anything + t.equal(peer2.restartIce(), false, 'peer2 restartIce should return false because peer2 is not the initiator') - let tracks = 1 - peer2.on('track', function () { - t.pass(`got peer2 track ${tracks++}`) - }) + peer1.once('reconnect', function () { + t.pass('peer1 reconnect after ice restart') + }) + + peer2.once('reconnect', function () { + t.pass('peer2 reconnect after ice restart') + }) + + peer1.once('connect', function () { + t.fail('peer1 connect event after ice restart, should be reconnect') + }) + + peer2.once('connect', function () { + t.fail('peer2 connect event after ice restart, should be reconnect') + }) + + function onPeer1SignalState (state) { + if (state === 'stable') { + t.pass('peer1 stable after ice restart') + peer1.removeListener('signalingStateChange', onPeer1SignalState) + } else { + console.log('peer1 signalingStatechange = ' + state) + } + } + + function onPeer2SignalState(state) { + if (state === 'stable') { + t.pass('peer2 stable after ice restart') + peer2.removeListener('signalingStateChange', onPeer2SignalState) + } else { + console.log('peer2 signalingStatechange = ' + state) + } + } + + peer1.on('signalingStateChange', onPeer1SignalState) + peer2.on('signalingStateChange', onPeer2SignalState) + + function onPeer1IceStateChange(state, gatheringState) { + if (state === 'connected' && gatheringState === 'complete') { + t.pass('peer1 got ice connected state after ice restart') + peer1.removeListener('iceStateChange', onPeer1IceStateChange) + } else { + console.log('peer1 iceStatechange: ice = ' + state + ', gathering = ' + gatheringState) + } + } + + function onPeer2IceStateChange(state, gatheringState) { + if (state === 'connected' && gatheringState === 'complete') { + t.pass('peer2 got ice connected state after ice restart') + peer2.removeListener('iceStateChange', onPeer2IceStateChange) + } else { + console.log('peer2 iceStatechange: ice = ' + state + ', gathering = ' + gatheringState) + } + } + + peer1.on('iceStateChange', onPeer1IceStateChange) + peer2.on('iceStateChange', onPeer2IceStateChange) + + peer1.on('_iceGatheringComplete', function () { + console.log('peer1 _iceGatheringComplete') + }) + + peer2.on('_iceGatheringComplete', function () { + console.log('peer2 _iceGatheringComplete') + }) + + } }) From 7440aeec6a5d242642b7774e0f440ae18533bccd Mon Sep 17 00:00:00 2001 From: Kyle Worcester-Moore <16263357+KW-M@users.noreply.github.com> Date: Sat, 26 Oct 2024 19:01:12 -0700 Subject: [PATCH 28/30] Update jsDoc typing comments to apply to full.js, index.js and lite.js --- full.js | 19 +------------------ index.js | 13 ++++++++++++- lite.js | 25 ++++++++++++++++++++++++- 3 files changed, 37 insertions(+), 20 deletions(-) diff --git a/full.js b/full.js index c12133f5..cbf05c7c 100644 --- a/full.js +++ b/full.js @@ -6,24 +6,7 @@ import errCode from 'err-code' import { randomBytes, arr2hex, text2arr } from 'uint8-util' /** Type Definitions - * Simple Peer Options: - * @typedef {{ - * initiator: boolean; - * channelName?: string; - * channelConfig?: RTCDataChannelInit; - * config?: RTCConfiguration; - * offerOptions?: RTCOfferOptions; - * answerOptions?: RTCAnswerOptions; - * sdpTransform?: (string) => string; - * wrtc?: { RTCPeerConnection: function, RTCSessionDescription: function, RTCIceCandidate: function }; - * stream?: false | MediaStream; - * streams?: MediaStream[]; - * trickle?: boolean; - * allowHalfTrickle?: boolean; - * objectMode?: boolean; - * iceRestartEnabled?: false | "onFailure" | "onDisconnect"; - * iceFailureRecoveryTimeout?: number; //miliseconds to wait for ice restart to complete after the ice state reaches "failed". - * }} SimplePeerOptions + * @typedef {import('./index.js').SimplePeerOptions} SimplePeerOptions */ const Debug = debug('simple-peer') diff --git a/index.js b/index.js index 0a1aa0c7..f8804304 100644 --- a/index.js +++ b/index.js @@ -2,12 +2,23 @@ import Lite from './lite.js' import errCode from 'err-code' +/** Type Definitions + * @typedef {import('./lite.js').SimplePeerLiteOptions & { + * stream?: false | MediaStream; + * streams?: MediaStream[]; + * }} SimplePeerOptions + */ + /** * WebRTC peer connection. Same API as node core `net.Socket`, plus a few extra methods. * Duplex stream. - * @param {Object} opts + * @param {SimplePeerOptions} opts */ class Peer extends Lite { + + /** Create a new Simple Peer instance. + * @param {SimplePeerOptions} opts + */ constructor (opts = {}) { super(opts) if (!this._pc) return diff --git a/lite.js b/lite.js index 159f5d71..f11b4f4a 100644 --- a/lite.js +++ b/lite.js @@ -5,6 +5,25 @@ import { Duplex } from 'streamx' import errCode from 'err-code' import { randomBytes, arr2hex, text2arr } from 'uint8-util' +/** Type Definitions + * Simple Peer Lite Options: + * @typedef {{ + * initiator: boolean; + * channelName?: string; + * channelConfig?: RTCDataChannelInit; + * config?: RTCConfiguration; + * offerOptions?: RTCOfferOptions; + * answerOptions?: RTCAnswerOptions; + * sdpTransform?: (string) => string; + * wrtc?: { RTCPeerConnection: function, RTCSessionDescription: function, RTCIceCandidate: function }; + * trickle?: boolean; + * allowHalfTrickle?: boolean; + * objectMode?: boolean; + * iceRestartEnabled?: false | "onFailure" | "onDisconnect"; + * iceFailureRecoveryTimeout?: number; //miliseconds to wait for ice restart to complete after the ice state reaches "failed". + * }} SimplePeerLiteOptions + */ + const Debug = debug('simple-peer') const MAX_BUFFERED_AMOUNT = 64 * 1024 @@ -24,13 +43,16 @@ function warn (message) { /** * WebRTC peer connection. Same API as node core `net.Socket`, plus a few extra methods. * Duplex stream. - * @param {Object} opts + * @param {SimplePeerOptions} opts */ class Peer extends Duplex { /** @type {RTCPeerConnection} */ _pc + /** Create a new Simple Peer instance. + * @param {SimplePeerOptions} opts + */ constructor (opts) { opts = Object.assign({ allowHalfOpen: false @@ -57,6 +79,7 @@ class Peer extends Duplex { this.trickle = opts.trickle !== undefined ? opts.trickle : true this.allowHalfTrickle = opts.allowHalfTrickle !== undefined ? opts.allowHalfTrickle : false this.iceCompleteTimeout = opts.iceCompleteTimeout || ICECOMPLETE_TIMEOUT + // Ice restart often only makes sense if trickle is enabled, and isn't currently supported in wrtc node polyfill https://github.com/feross/simple-peer/issues/579 this.iceRestartEnabled = opts.iceRestartEnabled ?? ((this.trickle === true && !opts.wrtc) ? "onFailure" : false) if (this.iceRestartEnabled === true) this.iceRestartEnabled = "onFailure" // default to "onFailure" if user mistakenly passes true instead of a string From 908e9670df63b242f319572b4c6c31c633a31714 Mon Sep 17 00:00:00 2001 From: Kyle Worcester-Moore <16263357+KW-M@users.noreply.github.com> Date: Wed, 4 Dec 2024 06:02:07 -0800 Subject: [PATCH 29/30] switch to preliminary promise based ice recovery api --- full.js | 274 ++++++++++++++++++++++++++++++++++++-------------------- 1 file changed, 177 insertions(+), 97 deletions(-) diff --git a/full.js b/full.js index cbf05c7c..fe4bd8e2 100644 --- a/full.js +++ b/full.js @@ -66,16 +66,20 @@ class Peer extends Duplex { this.allowHalfTrickle = opts.allowHalfTrickle !== undefined ? opts.allowHalfTrickle : false this.iceCompleteTimeout = opts.iceCompleteTimeout || ICECOMPLETE_TIMEOUT - // Ice restart often only makes sense if trickle is enabled, and isn't currently supported in wrtc node polyfill https://github.com/feross/simple-peer/issues/579 - this.iceRestartEnabled = opts.iceRestartEnabled ?? ((this.trickle === true && !opts.wrtc) ? "onFailure" : false) - if (this.iceRestartEnabled === true) this.iceRestartEnabled = "onFailure" // default to "onFailure" if user mistakenly passes true instead of a string - this.iceFailureRecoveryTimeout = opts.iceFailureRecoveryTimeout ?? ICEFAILURE_RECOVERY_TIMEOUT // how long to wait for recovery from failed state - this._iceFailureRecoveryTimer = null + // // Ice restart often only makes sense if trickle is enabled, and isn't currently supported in wrtc node polyfill https://github.com/feross/simple-peer/issues/579 + // this.iceRestartEnabled = opts.iceRestartEnabled ?? ((this.trickle === true && !opts.wrtc) ? "onFailure" : false) + // if (this.iceRestartEnabled === true) this.iceRestartEnabled = "onFailure" // default to "onFailure" if user mistakenly passes true instead of a string + // this.iceFailureRecoveryTimeout = opts.iceFailureRecoveryTimeout ?? ICEFAILURE_RECOVERY_TIMEOUT // how long to wait for recovery from failed state + // this._iceFailureRecoveryTimer = null + + // What to do when the connection has dropped and will not recover (ICE reaches failed state) - must be an async function or a function that returns a promise. + this.recoveryAction = opts.recoveryAction ?? this._defaultRecoveryAction this._destroying = false this._connected = false this._connecting = false this._connectedOnce = false + this._iceUFrag = undefined this.remoteAddress = undefined this.remoteFamily = undefined @@ -92,15 +96,16 @@ class Peer extends Duplex { } } - this._pcReady = false this._channelReady = false - this._iceGatheringComplete = false // ice candidate trickle done (got null candidate) - this._iceGatheringCompleteTimer = null // send an offer/answer anyway after some timeout + this._iceComplete = false // ice candidate trickle done (got null candidate) + this._iceCompleteTimer = null // send an offer/answer anyway after some timeout this._channel = null this._pendingCandidates = [] this._isNegotiating = false // is this peer waiting for negotiation to complete? + this._shouldRestartIce = false // should ice be restarted on the next negotiation? this._isRestartingIce = false // is true while restarting ice and false once connected (only on initiator side) + this._isRecoveringIceFailure = false // is true while recovering from ice failure (the promise returned by recoveryAction is pending) this._firstNegotiation = true this._batchedNegotiation = false // batch synchronous negotiations this._queuedNegotiation = false // is there a queued negotiation request? @@ -247,6 +252,29 @@ class Peer extends Duplex { _addIceCandidate (candidate) { const iceCandidateObj = new RTCIceCandidate(candidate) + + // Detect a remote ice restart: Ice restart will cause incoming ice candidates to use a new username fragment (ufrag) + let uFrag = iceCandidateObj.usernameFragment + if (!uFrag) { + const candidateStr = iceCandidateObj.candidate + const uFragStart = candidateStr.indexOf('ufrag') + 6 + if (uFragStart > 5) { + const uFragEnd = candidateStr.indexOf(' ', uFragStart) + uFrag = candidateStr.slice(uFragStart, uFragEnd > 0 ? uFragEnd : undefined) + } + } + if (uFrag && uFrag !== this._iceUFrag) { + if (this._iceUFrag !== undefined) { + this._iceComplete = false // Reset iceComplete + this._isRestartingIce = true + this._debug('Remote ICE username fragment changed: ' + this._iceUFrag + "->" + uFrag) + } + this._iceUFrag = uFrag + } + + this._debug('Remote ICE username fragment: ' + this._iceUFrag + ' - usernameFragment: ' + uFrag) + + // Add the candidate to the remote peer this._pc.addIceCandidate(iceCandidateObj) .catch(err => { if (!iceCandidateObj.address || iceCandidateObj.address.endsWith('.local')) { @@ -460,45 +488,92 @@ class Peer extends Duplex { return false; } else { this._debug('Restarting ICE') - if (this._iceFailureRecoveryTimer != null) { - // Restart the recovery timer when restartIce() is manually called, - // Note: this._iceFailureRecoveryTimer being non-null indicates that ice has previously entered the failed state and has not recovered by now. - clearTimeout(this._iceFailureRecoveryTimer) - this._iceFailureRecoveryTimer = null; - this._startIceFailureRecoveryTimeout() - } - this._iceGatheringComplete = false // Reset iceComplete - clearTimeout(this._iceGatheringCompleteTimer) // Clear _iceGatheringCompleteTimer too - this._iceGatheringCompleteTimer = null // Clear _iceGatheringCompleteTimer too + // if (this._iceFailureRecoveryTimer != null) { + // // Restart the recovery timer when restartIce() is manually called, + // // Note: this._iceFailureRecoveryTimer being non-null indicates that ice has previously entered the failed state and has not recovered by now. + // clearTimeout(this._iceFailureRecoveryTimer) + // this._iceFailureRecoveryTimer = null; + // this._startIceFailureRecoveryTimeout() + // } + this._iceComplete = false // Reset iceComplete + clearTimeout(this._iceCompleteTimer) // Clear _iceCompleteTimer too + this._iceCompleteTimer = null // Clear _iceCompleteTimer too this._isNegotiating = false // allow renegotiation and createOffer to happen this._isRestartingIce = true; if (this._pc.restartIce) this._pc.restartIce() + this._shouldRestartIce = (this.initiator == true); this._needsNegotiation() // Start a new negotiating cycle return true } } + /** returns true when an ice restart has started and not completed */ + isIceRestartInProgress () { + return this._isRestartingIce; + } + /** - * calls __destroy() after the iceFailureRecoveryTimeout time if we dont - * re-establish connection (this function is called once ice enters the failed state) + * calls the configured recoveryAction function or promise, waits for it to complete, + * and then checks if the connection is re-estabilshed and otherwise destroys the peer + * @param {string} errorCode - error code to be used in case of failure eg: 'ERR_ICE_CONNECTION_FAILURE' **/ - _startIceFailureRecoveryTimeout () { + _onConnectionFailure (errorCode) { if (this.destroyed || this._destroying) return - if (this._iceFailureRecoveryTimer != null) return - this._debug('started iceFailureRecovery timeout') - this._iceGatheringComplete = false // Reset iceComplete - clearTimeout(this._iceGatheringCompleteTimer) // Clear _iceGatheringCompleteTimer too - this._iceGatheringCompleteTimer = null // Clear _iceGatheringCompleteTimer too - this._iceFailureRecoveryTimer = setTimeout(() => { - const iceConnectionState = this._pc.iceConnectionState - const iceGatheringState = this._pc.iceGatheringState - this._debug('checking iceFailureRecovery timeout', iceConnectionState, iceGatheringState, this._iceGatheringComplete) - let hasFailedToRecover = !(iceConnectionState === 'connected' || iceConnectionState === 'completed') - if (hasFailedToRecover) { - this._debug('iceFailureRecovery timeout completed - failed') - this.__destroy(errCode(new Error('Ice connection recovery failed.'), 'ERR_ICE_CONNECTION_FAILURE')) + const iceConnectionState = this._pc.iceConnectionState + const iceGatheringState = this._pc.iceGatheringState + this._debug('onIceFailure', iceConnectionState, iceGatheringState, this._iceComplete) + if (this._isRecoveringIceFailure) return + if (this.recoveryAction && typeof this.recoveryAction == 'function') { + this._debug('Attempting recovery...') + this._isRecoveringIceFailure = true + this.recoveryAction(this).then(() => { + this._debug('Recovery finished') + this._isRecoveringIceFailure = false + this._maybeReady() + }).catch((err) => { + this._isRecoveringIceFailure = false + this._debug('Recovery failed: ' + err + errCode) + this.__destroy(errCode(err, errorCode)) + }) + } else { + this.__destroy(errCode(new Error('Recovery action not set.'), errorCode)) + } + // let hasFailedToRecover = !(iceConnectionState === 'connected' || iceConnectionState === 'completed') + // if (hasFailedToRecover) { + // this.__destroy(errCode(new Error('Recovery action failed.'), 'ERR_ICE_CONNECTION_FAILURE')) + // } + // this._iceComplete = false // Reset iceComplete + // clearTimeout(this._iceCompleteTimer) // Clear _iceCompleteTimer too + // this._iceCompleteTimer = null // Clear _iceCompleteTimer too + // this._iceFailureRecoveryTimer = setTimeout(() => { + + } + + /** + * Default action to run when an ice connection failure is detected. + * This function will attempt to restart ice and wait for the connection to re-establish. + * If the connection is not re-established within a timeout, the promise rejects and the peer will be destroyed. + * @param {Peer} thisPeer - The peer the recovery action is being called on + */ + async _defaultRecoveryAction (thisPeer) { + if (!thisPeer.trickle) thisPeer.__destroy(errCode(new Error('Connection Failed - Not doing recovery b/c trickle disabled.'), 'ERR_ICE_CONNECTION_FAILURE')) + if (thisPeer.opts.wrtc) thisPeer.__destroy(errCode(new Error('Connection Failed - Not doing recovery b/c lack of support in wrtc.'), 'ERR_ICE_CONNECTION_FAILURE')) + await new Promise((resolve, reject) => { + if(thisPeer.initiator) thisPeer.restartIce() + const onIceStateChange = (iceConnectionState, iceGatheringState) => { + if (iceConnectionState === 'connected' || iceConnectionState === 'completed') { + resolve() + } else if (iceConnectionState === 'failed') { + reject(new Error('Recovery Ice Failed')) + } else return; + thisPeer.off('iceStateChange', onIceStateChange) } - }, this.iceFailureRecoveryTimeout) + thisPeer.on('iceStateChange', onIceStateChange) + setTimeout(() => { + thisPeer.off('iceStateChange', onIceStateChange) + reject(new Error('Recovery Timeout')) + }, ICEFAILURE_RECOVERY_TIMEOUT) // Arbitrary timeout, can be adjusted by supplying your own recoveryAction function or promise + }) } _final (cb) { @@ -519,7 +594,6 @@ class Peer extends Duplex { setTimeout(() => { // allow events concurrent with the call to _destroy() to fire (see #692) this._connected = false - this._pcReady = false this._channelReady = false this._remoteTracks = null this._remoteStreams = null @@ -539,7 +613,7 @@ class Peer extends Duplex { if (this._channel) { try { this._channel.close() - } catch (err) { } + } catch (err) {} // allow events concurrent with destruction to be handled this._channel.onmessage = null @@ -550,7 +624,7 @@ class Peer extends Duplex { if (this._pc) { try { this._pc.close() - } catch (err) { } + } catch (err) {} // allow events concurrent with destruction to be handled this._pc.oniceconnectionstatechange = null @@ -658,13 +732,13 @@ class Peer extends Duplex { _startIceCompleteTimeout () { if (this.destroyed) return - if (this._iceGatheringCompleteTimer) return + if (this._iceCompleteTimer) return this._debug('started iceComplete timeout') - this._iceGatheringCompleteTimer = setTimeout(() => { - if (!this._iceGatheringComplete) { + this._iceCompleteTimer = setTimeout(() => { + if (!this._iceComplete) { this._debug('iceComplete timeout completed') this.emit('iceTimeout') - this._onIceGatheringComplete(); + this._onIceComplete(); } }, this.iceCompleteTimeout) } @@ -672,8 +746,10 @@ class Peer extends Duplex { _createOffer () { if (this.destroyed) return - const offerOptions = Object.assign({}, this.offerOptions) // copy offer options - if (this._isRestartingIce) this.offerOptions.iceRestart = true + const offerOptions = Object.assign({ + iceRestart: this._shouldRestartIce + }, this.offerOptions) // copy offer options + this._shouldRestartIce = false this._pc.createOffer(offerOptions) .then(offer => { @@ -694,8 +770,8 @@ class Peer extends Duplex { const onSuccess = () => { this._debug('createOffer success') if (this.destroyed) return - if (this.trickle || this._iceGatheringComplete) sendOffer() - else this.once('_iceGatheringComplete', sendOffer) // wait for candidates + if (this.trickle || this._iceComplete) sendOffer() + else this.once('_iceComplete', sendOffer) // wait for candidates } const onError = err => { @@ -744,8 +820,8 @@ class Peer extends Duplex { const onSuccess = () => { if (this.destroyed) return - if (this.trickle || this._iceGatheringComplete) sendAnswer() - else this.once('_iceGatheringComplete', sendAnswer) + if (this.trickle || this._iceComplete) sendAnswer() + else this.once('_iceComplete', sendAnswer) } const onError = err => { @@ -770,20 +846,21 @@ class Peer extends Duplex { } if (this._pc.connectionState === 'failed') { - if (this.iceRestartEnabled || this._isRestartingIce) { - this._startIceFailureRecoveryTimeout() - } else { - return this.__destroy(errCode(new Error('Connection failed.'), 'ERR_CONNECTION_FAILURE')) - } - } - - if ( - (this._pc.connectionState === 'failed' && this.iceRestartEnabled === 'onFailure') || - (this._pc.connectionState === 'disconnected' && this.iceRestartEnabled === 'onDisconnect') - ) { - if (this.initiator && !this._isRestartingIce) { - this.restartIce() - } + this._onConnectionFailure('ERR_CONNECTION_FAILURE') + // if (this.iceRestartEnabled || this._isRestartingIce) { + // this._startIceFailureRecoveryTimeout() + // } else { + // return this.__destroy(errCode(new Error('Connection failed.'), 'ERR_CONNECTION_FAILURE')) + // } + // } + + // if ( + // (this._pc.connectionState === 'failed' && this.iceRestartEnabled === 'onFailure') || + // (this._pc.connectionState === 'disconnected' && this.iceRestartEnabled === 'onDisconnect') + // ) { + // if (this.initiator && !this._isRestartingIce) { + // this.restartIce() + // } } } @@ -800,44 +877,46 @@ class Peer extends Duplex { this.emit('iceStateChange', iceConnectionState, iceGatheringState) if (iceGatheringState === 'complete') { - this._onIceGatheringComplete(); + this._onIceComplete(); } if (iceConnectionState === 'connected' || iceConnectionState === 'completed') { - if (this._iceFailureRecoveryTimer != null) { - clearTimeout(this._iceFailureRecoveryTimer) - this._iceFailureRecoveryTimer = null - } - this._pcReady = true this._isRestartingIce = false + this._shouldRestartIce = false this._maybeReady() } - - if (iceConnectionState === 'closed') { + else if (iceConnectionState === 'failed') { + this._onConnectionFailure('ERR_ICE_CONNECTION_FAILURE') + } + else if (iceConnectionState === 'closed') { this.__destroy(errCode(new Error('Ice connection closed.'), 'ERR_ICE_CONNECTION_CLOSED')) - } else if (iceConnectionState === 'failed' && !this.iceRestartEnabled && !this._isRestartingIce) { - this.__destroy(errCode(new Error('Ice connection failed.'), 'ERR_ICE_CONNECTION_FAILURE')) - } else if (iceConnectionState === 'failed' && (this.iceRestartEnabled || this._isRestartingIce)) { - this._startIceFailureRecoveryTimeout() } - if ( - (iceConnectionState === 'failed' && this.iceRestartEnabled === 'onFailure') || - (iceConnectionState === 'disconnected' && this.iceRestartEnabled === 'onDisconnect') - ) { - if (this.initiator && !this._isRestartingIce) { - this.restartIce() - } - } + + // this.__destroy(errCode(new Error('Ice connection failed.'), 'ERR_ICE_CONNECTION_FAILURE')) + // else if (iceConnectionState === 'failed' && (this.iceRestartEnabled || this._isRestartingIce)) { + // this._startIceFailureRecoveryTimeout() + // } + + // if ( + // (iceConnectionState === 'failed' && this.iceRestartEnabled === 'onFailure') || + // (iceConnectionState === 'disconnected' && this.iceRestartEnabled === 'onDisconnect') + // ) { + // if (this.initiator && !this._isRestartingIce) { + // this.restartIce() + // } + // } } - _onIceGatheringComplete () { - if (!this._iceGatheringComplete) { - this._debug('iceGatheringComplete') - this._iceGatheringComplete = true - this.emit('_iceGatheringComplete') - clearTimeout(this._iceGatheringCompleteTimer) - this._iceGatheringCompleteTimer = null + _onIceComplete () { + if (!this._iceComplete) { + this._iceComplete = true + this._isRestartingIce = false + this._shouldRestartIce = false + this._debug('iceComplete') + this.emit('_iceComplete') + clearTimeout(this._iceCompleteTimer) + this._iceCompleteTimer = null } } @@ -863,7 +942,7 @@ class Peer extends Duplex { cb(null, reports) }, err => cb(err)) - // Single-parameter callback-based getStats() (non-standard) + // Single-parameter callback-based getStats() (non-standard) } else if (this._pc.getStats.length > 0) { this._pc.getStats(res => { // If we destroy connection in `connect` callback this code might happen to run when actual connection is already closed @@ -883,17 +962,18 @@ class Peer extends Duplex { cb(null, reports) }, err => cb(err)) - // Unknown browser, skip getStats() since it's anyone's guess which style of - // getStats() they implement. + // Unknown browser, skip getStats() since it's anyone's guess which style of + // getStats() they implement. } else { cb(null, []) } } _maybeReady () { - this._debug('maybeReady pc %s channel %s', this._pcReady, this._channelReady) - if (this._connecting || !this._pcReady || !this._channelReady) return - + const iceConnectionState = this._pc.iceConnectionState + const pcReady = iceConnectionState === 'connected' || iceConnectionState === 'completed' + this._debug('maybeReady pc %s channel %s', pcReady, this._channelReady) + if (this._connecting || !pcReady || !this._channelReady) return this._connecting = true // HACK: We can't rely on order here, for details see https://github.com/js-platform/node-webrtc/issues/339 @@ -1083,9 +1163,9 @@ class Peer extends Duplex { sdpMid: event.candidate.sdpMid } }) - } else if (!event.candidate && !this._iceGatheringComplete) { + } else if (!event.candidate && !this._iceComplete) { // a null ICE candidate indicates that the ice gathering process is finished - this._onIceGatheringComplete() + this._onIceComplete() } // as soon as we've received one valid candidate start timeout if (event.candidate) { From 439d8a28c3964ec0d7fa562d7b952d4f94de6032 Mon Sep 17 00:00:00 2001 From: Kyle Worcester-Moore <16263357+KW-M@users.noreply.github.com> Date: Fri, 14 Mar 2025 12:40:31 -0700 Subject: [PATCH 30/30] Fix remote ice restart detection in firefox, cleanup dead code. --- full.js | 95 +++++++++++++++++---------------------------------------- 1 file changed, 28 insertions(+), 67 deletions(-) diff --git a/full.js b/full.js index fe4bd8e2..9925bdbe 100644 --- a/full.js +++ b/full.js @@ -15,6 +15,7 @@ const MAX_BUFFERED_AMOUNT = 64 * 1024 const ICECOMPLETE_TIMEOUT = 5 * 1000 const CHANNEL_CLOSING_TIMEOUT = 5 * 1000 const ICEFAILURE_RECOVERY_TIMEOUT = 5 * 1000 +const ICE_UFRAG_STRING = 'a=ice-ufrag:' // HACK: Filter trickle lines when trickle is disabled #354 function filterTrickle (sdp) { @@ -66,12 +67,6 @@ class Peer extends Duplex { this.allowHalfTrickle = opts.allowHalfTrickle !== undefined ? opts.allowHalfTrickle : false this.iceCompleteTimeout = opts.iceCompleteTimeout || ICECOMPLETE_TIMEOUT - // // Ice restart often only makes sense if trickle is enabled, and isn't currently supported in wrtc node polyfill https://github.com/feross/simple-peer/issues/579 - // this.iceRestartEnabled = opts.iceRestartEnabled ?? ((this.trickle === true && !opts.wrtc) ? "onFailure" : false) - // if (this.iceRestartEnabled === true) this.iceRestartEnabled = "onFailure" // default to "onFailure" if user mistakenly passes true instead of a string - // this.iceFailureRecoveryTimeout = opts.iceFailureRecoveryTimeout ?? ICEFAILURE_RECOVERY_TIMEOUT // how long to wait for recovery from failed state - // this._iceFailureRecoveryTimer = null - // What to do when the connection has dropped and will not recover (ICE reaches failed state) - must be an async function or a function that returns a promise. this.recoveryAction = opts.recoveryAction ?? this._defaultRecoveryAction @@ -239,6 +234,19 @@ class Peer extends Duplex { }) this._pendingCandidates = [] + // Detect a remote ice restart: Ice restart will cause incoming ice candidates to use a new username fragment (ufrag) + const sdp = this._pc.remoteDescription.sdp; + const iceuFragSdpStartPos = sdp.indexOf(ICE_UFRAG_STRING) + if (iceuFragSdpStartPos !== -1) { + const uFragStart = iceuFragSdpStartPos + ICE_UFRAG_STRING.length + const uFragEnd = sdp.indexOf('\n', uFragStart) + const uFragStr = sdp.slice(uFragStart, uFragEnd > 0 ? uFragEnd : undefined).trim() + this._debug('Remote ICE username fragment (from sdp): ' + uFragStr) + this._updateUFrag(uFragStr) + } else { + this._debug('No remote ICE username fragment found in sdp:', sdp) + } + if (this._pc.remoteDescription.type === 'offer') this._createAnswer() }) .catch(err => { @@ -253,27 +261,6 @@ class Peer extends Duplex { _addIceCandidate (candidate) { const iceCandidateObj = new RTCIceCandidate(candidate) - // Detect a remote ice restart: Ice restart will cause incoming ice candidates to use a new username fragment (ufrag) - let uFrag = iceCandidateObj.usernameFragment - if (!uFrag) { - const candidateStr = iceCandidateObj.candidate - const uFragStart = candidateStr.indexOf('ufrag') + 6 - if (uFragStart > 5) { - const uFragEnd = candidateStr.indexOf(' ', uFragStart) - uFrag = candidateStr.slice(uFragStart, uFragEnd > 0 ? uFragEnd : undefined) - } - } - if (uFrag && uFrag !== this._iceUFrag) { - if (this._iceUFrag !== undefined) { - this._iceComplete = false // Reset iceComplete - this._isRestartingIce = true - this._debug('Remote ICE username fragment changed: ' + this._iceUFrag + "->" + uFrag) - } - this._iceUFrag = uFrag - } - - this._debug('Remote ICE username fragment: ' + this._iceUFrag + ' - usernameFragment: ' + uFrag) - // Add the candidate to the remote peer this._pc.addIceCandidate(iceCandidateObj) .catch(err => { @@ -470,6 +457,18 @@ class Peer extends Duplex { this._isNegotiating = true } + _updateUFrag (uFrag) { + if (uFrag && uFrag !== this._iceUFrag) { + if (this._iceUFrag !== undefined) { + this._iceComplete = false // Reset iceComplete + this._isRestartingIce = true + this.emit("restartingIce", true) + this._debug('Remote ICE username fragment changed: ' + this._iceUFrag + "->" + uFrag) + } + this._iceUFrag = uFrag + } + } + /** * Trigger an ICE Restart on the WebRTC connection. * This will re-gather network candidates and find the best network route between peers. @@ -500,6 +499,7 @@ class Peer extends Duplex { this._iceCompleteTimer = null // Clear _iceCompleteTimer too this._isNegotiating = false // allow renegotiation and createOffer to happen this._isRestartingIce = true; + this.emit("restartingIce", true) if (this._pc.restartIce) this._pc.restartIce() this._shouldRestartIce = (this.initiator == true); this._needsNegotiation() // Start a new negotiating cycle @@ -538,15 +538,6 @@ class Peer extends Duplex { } else { this.__destroy(errCode(new Error('Recovery action not set.'), errorCode)) } - // let hasFailedToRecover = !(iceConnectionState === 'connected' || iceConnectionState === 'completed') - // if (hasFailedToRecover) { - // this.__destroy(errCode(new Error('Recovery action failed.'), 'ERR_ICE_CONNECTION_FAILURE')) - // } - // this._iceComplete = false // Reset iceComplete - // clearTimeout(this._iceCompleteTimer) // Clear _iceCompleteTimer too - // this._iceCompleteTimer = null // Clear _iceCompleteTimer too - // this._iceFailureRecoveryTimer = setTimeout(() => { - } /** @@ -557,7 +548,6 @@ class Peer extends Duplex { */ async _defaultRecoveryAction (thisPeer) { if (!thisPeer.trickle) thisPeer.__destroy(errCode(new Error('Connection Failed - Not doing recovery b/c trickle disabled.'), 'ERR_ICE_CONNECTION_FAILURE')) - if (thisPeer.opts.wrtc) thisPeer.__destroy(errCode(new Error('Connection Failed - Not doing recovery b/c lack of support in wrtc.'), 'ERR_ICE_CONNECTION_FAILURE')) await new Promise((resolve, reject) => { if(thisPeer.initiator) thisPeer.restartIce() const onIceStateChange = (iceConnectionState, iceGatheringState) => { @@ -845,22 +835,8 @@ class Peer extends Duplex { this._connected = false } - if (this._pc.connectionState === 'failed') { + if (this._pc.connectionState === 'failed' && this._pc.iceConnectionState === 'failed') { this._onConnectionFailure('ERR_CONNECTION_FAILURE') - // if (this.iceRestartEnabled || this._isRestartingIce) { - // this._startIceFailureRecoveryTimeout() - // } else { - // return this.__destroy(errCode(new Error('Connection failed.'), 'ERR_CONNECTION_FAILURE')) - // } - // } - - // if ( - // (this._pc.connectionState === 'failed' && this.iceRestartEnabled === 'onFailure') || - // (this._pc.connectionState === 'disconnected' && this.iceRestartEnabled === 'onDisconnect') - // ) { - // if (this.initiator && !this._isRestartingIce) { - // this.restartIce() - // } } } @@ -891,21 +867,6 @@ class Peer extends Duplex { else if (iceConnectionState === 'closed') { this.__destroy(errCode(new Error('Ice connection closed.'), 'ERR_ICE_CONNECTION_CLOSED')) } - - - // this.__destroy(errCode(new Error('Ice connection failed.'), 'ERR_ICE_CONNECTION_FAILURE')) - // else if (iceConnectionState === 'failed' && (this.iceRestartEnabled || this._isRestartingIce)) { - // this._startIceFailureRecoveryTimeout() - // } - - // if ( - // (iceConnectionState === 'failed' && this.iceRestartEnabled === 'onFailure') || - // (iceConnectionState === 'disconnected' && this.iceRestartEnabled === 'onDisconnect') - // ) { - // if (this.initiator && !this._isRestartingIce) { - // this.restartIce() - // } - // } } _onIceComplete () {