latest-v2.js

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this._events||(this._events={}),this._events[e]||(this._events[e]=[]),a(this._events[e])||(this._events[e]=[this._events[e]]),this._events[e]},o.listenerCount=function(e,t){var n;return n=e._events&&e._events[t]?"function"==typeof e._events[t]?1:e._events[t].length:0}},{__browserify_process:13}],9:[function(e,t){function n(e){var t=this;a.call(this),this.id=e.id,this.parent=e.parent,this.type=e.type||"video",this.oneway=e.oneway||!1,this.sharemyscreen=e.sharemyscreen||!1,this.browserPrefix=e.prefix,this.stream=e.stream,this.enableDataChannels=void 0===e.enableDataChannels?this.parent.config.enableDataChannels:e.enableDataChannels,this.receiveMedia=e.receiveMedia||this.parent.config.receiveMedia,this.channels={},this.sid=e.sid||Date.now().toString(),this.pc=new o(this.parent.config.peerConnectionConfig,this.parent.config.peerConnectionConstraints),this.pc.on("ice",this.onIceCandidate.bind(this)),this.pc.on("endOfCandidates",function(e){t.send("endOfCandidates",e)}),this.pc.on("offer",function(e){t.parent.config.nick&&(e.nick=t.parent.config.nick),t.send("offer",e)}),this.pc.on("answer",function(e){t.parent.config.nick&&(e.nick=t.parent.config.nick),t.send("answer",e)}),this.pc.on("addStream",this.handleRemoteStreamAdded.bind(this)),this.pc.on("addChannel",this.handleDataChannelAdded.bind(this)),this.pc.on("removeStream",this.handleStreamRemoved.bind(this)),this.pc.on("negotiationNeeded",this.emit.bind(this,"negotiationNeeded")),this.pc.on("iceConnectionStateChange",this.emit.bind(this,"iceConnectionStateChange")),this.pc.on("iceConnectionStateChange",function(){switch(t.pc.iceConnectionState){case"failed":"offer"===t.pc.pc.peerconnection.localDescription.type&&(t.parent.emit("iceFailed",t),t.send("connectivityError"))}}),this.pc.on("signalingStateChange",this.emit.bind(this,"signalingStateChange")),this.logger=this.parent.logger,"screen"===e.type?this.parent.localScreen&&this.sharemyscreen&&(this.logger.log("adding local screen stream to peer connection"),this.pc.addStream(this.parent.localScreen),this.broadcaster=e.broadcaster):this.parent.localStreams.forEach(function(e){t.pc.addStream(e)}),this.on("channelOpen",function(e){e.protocol===c&&(e.onmessage=function(n){var r=JSON.parse(n.data),i=new s.Receiver;i.receive(r,e),t.emit("fileTransfer",r,i),i.on("receivedFile",function(){i.channel.close()})})}),this.on("*",function(){t.parent.emit.apply(t.parent,arguments)})}var r=e("util"),i=e("webrtcsupport"),o=e("rtcpeerconnection"),a=e("wildemitter"),s=e("filetransfer"),c="https://simplewebrtc.com/protocol/filetransfer#inband-v1";r.inherits(n,a),n.prototype.handleMessage=function(e){var t=this;if(this.logger.log("getting",e.type,e),e.prefix&&(this.browserPrefix=e.prefix),"offer"===e.type)this.nick||(this.nick=e.payload.nick),delete e.payload.nick,this.pc.handleOffer(e.payload,function(e){e||t.pc.answer(function(){})});else if("answer"===e.type)this.nick||(this.nick=e.payload.nick),delete e.payload.nick,this.pc.handleAnswer(e.payload);else if("candidate"===e.type)this.pc.processIce(e.payload);else if("connectivityError"===e.type)this.parent.emit("connectivityError",t);else if("mute"===e.type)this.parent.emit("mute",{id:e.from,name:e.payload.name});else if("unmute"===e.type)this.parent.emit("unmute",{id:e.from,name:e.payload.name});else if("endOfCandidates"===e.type){var n=this.pc.pc.peerconnection.transceivers||[];n.forEach(function(e){e.iceTransport&&e.iceTransport.addRemoteCandidate({})})}},n.prototype.send=function(e,t){var n={to:this.id,sid:this.sid,broadcaster:this.broadcaster,roomType:this.type,type:e,payload:t,prefix:i.prefix};this.logger.log("sending",e,n),this.parent.emit("message",n)},n.prototype.sendDirectly=function(e,t,n){var r={type:t,payload:n};this.logger.log("sending via datachannel",e,t,r);var i=this.getDataChannel(e);return"open"!=i.readyState?!1:(i.send(JSON.stringify(r)),!0)},n.prototype._observeDataChannel=function(e){var t=this;e.onclose=this.emit.bind(this,"channelClose",e),e.onerror=this.emit.bind(this,"channelError",e),e.onmessage=function(n){t.emit("channelMessage",t,e.label,JSON.parse(n.data),e,n)},e.onopen=this.emit.bind(this,"channelOpen",e)},n.prototype.getDataChannel=function(e,t){if(!i.supportDataChannel)return this.emit("error",new Error("createDataChannel not supported"));var n=this.channels[e];return t||(t={}),n?n:(n=this.channels[e]=this.pc.createDataChannel(e,t),this._observeDataChannel(n),n)},n.prototype.onIceCandidate=function(e){if(!this.closed)if(e){var t=this.parent.config.peerConnectionConfig;"moz"===i.prefix&&t&&t.iceTransports&&e.candidate&&e.candidate.candidate&&e.candidate.candidate.indexOf(t.iceTransports)<0?this.logger.log("Ignoring ice candidate not matching pcConfig iceTransports type: ",t.iceTransports):this.send("candidate",e)}else this.logger.log("End of candidates.")},n.prototype.start=function(e){this.enableDataChannels&&this.getDataChannel(e),this.pc.offer(this.receiveMedia,function(){})},n.prototype.icerestart=function(){var e=this.receiveMedia;e.mandatory.IceRestart=!0,this.pc.offer(e,function(){})},n.prototype.end=function(){this.closed||(this.pc.close(),this.handleStreamRemoved())},n.prototype.handleRemoteStreamAdded=function(e){var t=this;this.stream?this.logger.warn("Already have a remote stream"):(this.stream=e.stream,this.stream.onended=function(){t.end()},this.parent.emit("peerStreamAdded",this))},n.prototype.handleStreamRemoved=function(){this.parent.peers.splice(this.parent.peers.indexOf(this),1),this.closed=!0,this.parent.emit("peerStreamRemoved",this)},n.prototype.handleDataChannelAdded=function(e){this.channels[e.label]=e,this._observeDataChannel(e)},n.prototype.sendFile=function(e){var t=new s.Sender,n=this.getDataChannel("filetransfer"+(new Date).getTime(),{protocol:c});return n.onopen=function(){n.send(JSON.stringify({size:e.size,name:e.name})),t.send(e,n)},n.onclose=function(){console.log("sender received transfer"),t.emit("complete")},t},t.exports=n},{filetransfer:14,rtcpeerconnection:15,util:8,webrtcsupport:5,wildemitter:4}],7:[function(e,t){var n=e("webrtc-adapter-test");t.exports=function(e,t,r){var i;window.URL;var o=t,a={autoplay:!0,mirror:!1,muted:!1,audio:!1,disableContextMenu:!1};if(r)for(i in r)a[i]=r[i];return o?"audio"===o.tagName.toLowerCase()&&(a.audio=!0):o=document.createElement(a.audio?"audio":"video"),a.disableContextMenu&&(o.oncontextmenu=function(e){e.preventDefault()}),a.autoplay&&(o.autoplay="autoplay"),a.muted&&(o.muted=!0),!a.audio&&a.mirror&&["","moz","webkit","o","ms"].forEach(function(e){var t=e?e+"Transform":"transform";o.style[t]="scaleX(-1)"}),n.attachMediaStream(o,e),o}},{"webrtc-adapter-test":16}],16:[function(t,n){"use strict";function r(e){return new Promise(function(t,n){i(e,t,n)})}var i=null,o=null,a=null,s=null,c=null,u=null,p={log:function(){"undefined"!=typeof n||"function"==typeof t&&"function"==typeof e||console.log.apply(console,arguments)},extractVersion:function(e,t,n){var r=e.match(t);return r&&r.length>=n&&parseInt(r[n],10)}};if("object"==typeof window&&(!window.HTMLMediaElement||"srcObject"in window.HTMLMediaElement.prototype||Object.defineProperty(window.HTMLMediaElement.prototype,"srcObject",{get:function(){return"mozSrcObject"in this?this.mozSrcObject:this._srcObject},set:function(e){"mozSrcObject"in this?this.mozSrcObject=e:(this._srcObject=e,this.src=URL.createObjectURL(e))}}),i=window.navigator&&window.navigator.getUserMedia),o=function(e,t){e.srcObject=t},a=function(e,t){e.srcObject=t.srcObject},"undefined"!=typeof window&&window.navigator)if(navigator.mozGetUserMedia){if(p.log("This appears to be Firefox"),s="firefox",c=p.extractVersion(navigator.userAgent,/Firefox\/([0-9]+)\./,1),u=31,window.RTCPeerConnection||(window.RTCPeerConnection=function(e,t){if(38>c&&e&&e.iceServers){for(var n=[],r=0;r<e.iceServers.length;r++){var i=e.iceServers[r];if(i.hasOwnProperty("urls"))for(var o=0;o<i.urls.length;o++){var a={url:i.urls[o]};0===i.urls[o].indexOf("turn")&&(a.username=i.username,a.credential=i.credential),n.push(a)}else n.push(e.iceServers[r])}e.iceServers=n}return new mozRTCPeerConnection(e,t)},window.RTCPeerConnection.prototype=mozRTCPeerConnection.prototype,mozRTCPeerConnection.generateCertificate&&Object.defineProperty(window.RTCPeerConnection,"generateCertificate",{get:function(){return arguments.length?mozRTCPeerConnection.generateCertificate.apply(null,arguments):mozRTCPeerConnection.generateCertificate}}),window.RTCSessionDescription=mozRTCSessionDescription,window.RTCIceCandidate=mozRTCIceCandidate),i=function(e,t,n){var r=function(e){if("object"!=typeof e||e.require)return e;var t=[];return Object.keys(e).forEach(function(n){if("require"!==n&&"advanced"!==n&&"mediaSource"!==n){var r=e[n]="object"==typeof e[n]?e[n]:{ideal:e[n]};if((void 0!==r.min||void 0!==r.max||void 0!==r.exact)&&t.push(n),void 0!==r.exact&&("number"==typeof r.exact?r.min=r.max=r.exact:e[n]=r.exact,delete r.exact),void 0!==r.ideal){e.advanced=e.advanced||[];var i={};i[n]="number"==typeof r.ideal?{min:r.ideal,max:r.ideal}:r.ideal,e.advanced.push(i),delete r.ideal,Object.keys(r).length||delete e[n]}}}),t.length&&(e.require=t),e};return 38>c&&(p.log("spec: "+JSON.stringify(e)),e.audio&&(e.audio=r(e.audio)),e.video&&(e.video=r(e.video)),p.log("ff37: "+JSON.stringify(e))),navigator.mozGetUserMedia(e,t,n)},navigator.getUserMedia=i,navigator.mediaDevices||(navigator.mediaDevices={getUserMedia:r,addEventListener:function(){},removeEventListener:function(){}}),navigator.mediaDevices.enumerateDevices=navigator.mediaDevices.enumerateDevices||function(){return new Promise(function(e){var t=[{kind:"audioinput",deviceId:"default",label:"",groupId:""},{kind:"videoinput",deviceId:"default",label:"",groupId:""}];e(t)})},41>c){var d=navigator.mediaDevices.enumerateDevices.bind(navigator.mediaDevices);navigator.mediaDevices.enumerateDevices=function(){return d().then(void 0,function(e){if("NotFoundError"===e.name)return[];throw e})}}}else if(navigator.webkitGetUserMedia&&window.webkitRTCPeerConnection){p.log("This appears to be Chrome"),s="chrome",c=p.extractVersion(navigator.userAgent,/Chrom(e|ium)\/([0-9]+)\./,2),u=38,window.RTCPeerConnection=function(e,t){e&&e.iceTransportPolicy&&(e.iceTransports=e.iceTransportPolicy);var n=new webkitRTCPeerConnection(e,t),r=n.getStats.bind(n);return n.getStats=function(e,t){var n=this,i=arguments;if(arguments.length>0&&"function"==typeof e)return r(e,t);var o=function(e){var t={},n=e.result();return n.forEach(function(e){var n={id:e.id,timestamp:e.timestamp,type:e.type};e.names().forEach(function(t){n[t]=e.stat(t)}),t[n.id]=n}),t};if(arguments.length>=2){var a=function(e){i[1](o(e))};return r.apply(this,[a,arguments[0]])}return new Promise(function(t,a){1===i.length&&null===e?r.apply(n,[function(e){t.apply(null,[o(e)])},a]):r.apply(n,[t,a])})},n},window.RTCPeerConnection.prototype=webkitRTCPeerConnection.prototype,webkitRTCPeerConnection.generateCertificate&&Object.defineProperty(window.RTCPeerConnection,"generateCertificate",{get:function(){return arguments.length?webkitRTCPeerConnection.generateCertificate.apply(null,arguments):webkitRTCPeerConnection.generateCertificate
}}),["createOffer","createAnswer"].forEach(function(e){var t=webkitRTCPeerConnection.prototype[e];webkitRTCPeerConnection.prototype[e]=function(){var e=this;if(arguments.length<1||1===arguments.length&&"object"==typeof arguments[0]){var n=1===arguments.length?arguments[0]:void 0;return new Promise(function(r,i){t.apply(e,[r,i,n])})}return t.apply(this,arguments)}}),["setLocalDescription","setRemoteDescription","addIceCandidate"].forEach(function(e){var t=webkitRTCPeerConnection.prototype[e];webkitRTCPeerConnection.prototype[e]=function(){var e=arguments,n=this;return new Promise(function(r,i){t.apply(n,[e[0],function(){r(),e.length>=2&&e[1].apply(null,[])},function(t){i(t),e.length>=3&&e[2].apply(null,[t])}])})}});var l=function(e){if("object"!=typeof e||e.mandatory||e.optional)return e;var t={};return Object.keys(e).forEach(function(n){if("require"!==n&&"advanced"!==n&&"mediaSource"!==n){var r="object"==typeof e[n]?e[n]:{ideal:e[n]};void 0!==r.exact&&"number"==typeof r.exact&&(r.min=r.max=r.exact);var i=function(e,t){return e?e+t.charAt(0).toUpperCase()+t.slice(1):"deviceId"===t?"sourceId":t};if(void 0!==r.ideal){t.optional=t.optional||[];var o={};"number"==typeof r.ideal?(o[i("min",n)]=r.ideal,t.optional.push(o),o={},o[i("max",n)]=r.ideal,t.optional.push(o)):(o[i("",n)]=r.ideal,t.optional.push(o))}void 0!==r.exact&&"number"!=typeof r.exact?(t.mandatory=t.mandatory||{},t.mandatory[i("",n)]=r.exact):["min","max"].forEach(function(e){void 0!==r[e]&&(t.mandatory=t.mandatory||{},t.mandatory[i(e,n)]=r[e])})}}),e.advanced&&(t.optional=(t.optional||[]).concat(e.advanced)),t};if(i=function(e,t,n){return e.audio&&(e.audio=l(e.audio)),e.video&&(e.video=l(e.video)),p.log("chrome: "+JSON.stringify(e)),navigator.webkitGetUserMedia(e,t,n)},navigator.getUserMedia=i,navigator.mediaDevices||(navigator.mediaDevices={getUserMedia:r,enumerateDevices:function(){return new Promise(function(e){var t={audio:"audioinput",video:"videoinput"};return MediaStreamTrack.getSources(function(n){e(n.map(function(e){return{label:e.label,kind:t[e.kind],deviceId:e.id,groupId:""}}))})})}}),navigator.mediaDevices.getUserMedia){var f=navigator.mediaDevices.getUserMedia.bind(navigator.mediaDevices);navigator.mediaDevices.getUserMedia=function(e){return p.log("spec:   "+JSON.stringify(e)),e.audio=l(e.audio),e.video=l(e.video),p.log("chrome: "+JSON.stringify(e)),f(e)}}else navigator.mediaDevices.getUserMedia=function(e){return r(e)};"undefined"==typeof navigator.mediaDevices.addEventListener&&(navigator.mediaDevices.addEventListener=function(){p.log("Dummy mediaDevices.addEventListener called.")}),"undefined"==typeof navigator.mediaDevices.removeEventListener&&(navigator.mediaDevices.removeEventListener=function(){p.log("Dummy mediaDevices.removeEventListener called.")}),o=function(e,t){c>=43?e.srcObject=t:"undefined"!=typeof e.src?e.src=URL.createObjectURL(t):p.log("Error attaching stream to element.")},a=function(e,t){c>=43?e.srcObject=t.srcObject:e.src=t.src}}else if(navigator.mediaDevices&&navigator.userAgent.match(/Edge\/(\d+).(\d+)$/)){if(p.log("This appears to be Edge"),s="edge",c=p.extractVersion(navigator.userAgent,/Edge\/(\d+).(\d+)$/,2),u=10547,window.RTCIceGatherer){var h=function(){return Math.random().toString(36).substr(2,10)},m=h(),g={};g.splitLines=function(e){return e.trim().split("\n").map(function(e){return e.trim()})},g.splitSections=function(e){var t=e.split("\r\nm=");return t.map(function(e,t){return(t>0?"m="+e:e).trim()+"\r\n"})},g.matchPrefix=function(e,t){return g.splitLines(e).filter(function(e){return 0===e.indexOf(t)})},g.parseCandidate=function(e){var t;t=0===e.indexOf("a=candidate:")?e.substring(12).split(" "):e.substring(10).split(" ");for(var n={foundation:t[0],component:t[1],protocol:t[2].toLowerCase(),priority:parseInt(t[3],10),ip:t[4],port:parseInt(t[5],10),type:t[7]},r=8;r<t.length;r+=2)switch(t[r]){case"raddr":n.relatedAddress=t[r+1];break;case"rport":n.relatedPort=parseInt(t[r+1],10);break;case"tcptype":n.tcpType=t[r+1]}return n},g.writeCandidate=function(e){var t=[];t.push(e.foundation),t.push(e.component),t.push(e.protocol.toUpperCase()),t.push(e.priority),t.push(e.ip),t.push(e.port);var n=e.type;return t.push("typ"),t.push(n),"host"!==n&&e.relatedAddress&&e.relatedPort&&(t.push("raddr"),t.push(e.relatedAddress),t.push("rport"),t.push(e.relatedPort)),e.tcpType&&"tcp"===e.protocol.toLowerCase()&&(t.push("tcptype"),t.push(e.tcpType)),"candidate:"+t.join(" ")},g.parseRtpMap=function(e){var t=e.substr(9).split(" "),n={payloadType:parseInt(t.shift(),10)};return t=t[0].split("/"),n.name=t[0],n.clockRate=parseInt(t[1],10),n.numChannels=3===t.length?parseInt(t[2],10):1,n},g.writeRtpMap=function(e){var t=e.payloadType;return void 0!==e.preferredPayloadType&&(t=e.preferredPayloadType),"a=rtpmap:"+t+" "+e.name+"/"+e.clockRate+(1!==e.numChannels?"/"+e.numChannels:"")+"\r\n"},g.parseFmtp=function(e){for(var t,n={},r=e.substr(e.indexOf(" ")+1).split(";"),i=0;i<r.length;i++)t=r[i].trim().split("="),n[t[0].trim()]=t[1];return n},g.writeFtmp=function(e){var t="",n=e.payloadType;if(void 0!==e.preferredPayloadType&&(n=e.preferredPayloadType),e.parameters&&e.parameters.length){var r=[];Object.keys(e.parameters).forEach(function(t){r.push(t+"="+e.parameters[t])}),t+="a=fmtp:"+n+" "+r.join(";")+"\r\n"}return t},g.parseRtcpFb=function(e){var t=e.substr(e.indexOf(" ")+1).split(" ");return{type:t.shift(),parameter:t.join(" ")}},g.writeRtcpFb=function(e){var t="",n=e.payloadType;return void 0!==e.preferredPayloadType&&(n=e.preferredPayloadType),e.rtcpFeedback&&e.rtcpFeedback.length&&e.rtcpFeedback.forEach(function(e){t+="a=rtcp-fb:"+n+" "+e.type+" "+e.parameter+"\r\n"}),t},g.parseSsrcMedia=function(e){var t=e.indexOf(" "),n={ssrc:e.substr(7,t-7)},r=e.indexOf(":",t);return r>-1?(n.attribute=e.substr(t+1,r-t-1),n.value=e.substr(r+1)):n.attribute=e.substr(t+1),n},g.getDtlsParameters=function(e,t){var n=g.splitLines(e);n=n.concat(g.splitLines(t));var r=n.filter(function(e){return 0===e.indexOf("a=fingerprint:")})[0].substr(14),i={role:"auto",fingerprints:[{algorithm:r.split(" ")[0],value:r.split(" ")[1]}]};return i},g.writeDtlsParameters=function(e,t){var n="a=setup:"+t+"\r\n";return e.fingerprints.forEach(function(e){n+="a=fingerprint:"+e.algorithm+" "+e.value+"\r\n"}),n},g.getIceParameters=function(e,t){var n=g.splitLines(e);n=n.concat(g.splitLines(t));var r={usernameFragment:n.filter(function(e){return 0===e.indexOf("a=ice-ufrag:")})[0].substr(12),password:n.filter(function(e){return 0===e.indexOf("a=ice-pwd:")})[0].substr(10)};return r},g.writeIceParameters=function(e){return"a=ice-ufrag:"+e.usernameFragment+"\r\n"+"a=ice-pwd:"+e.password+"\r\n"},g.parseRtpParameters=function(e){for(var t={codecs:[],headerExtensions:[],fecMechanisms:[],rtcp:[]},n=g.splitLines(e),r=n[0].split(" "),i=3;i<r.length;i++){var o=r[i],a=g.matchPrefix(e,"a=rtpmap:"+o+" ")[0];if(a){var s=g.parseRtpMap(a),c=g.matchPrefix(e,"a=fmtp:"+o+" ");s.parameters=c.length?g.parseFmtp(c[0]):{},s.rtcpFeedback=g.matchPrefix(e,"a=rtcp-fb:"+o+" ").map(g.parseRtcpFb),t.codecs.push(s)}}return t},g.writeRtpDescription=function(e,t){var n="";return n+="m="+e+" ",n+=t.codecs.length>0?"9":"0",n+=" UDP/TLS/RTP/SAVPF ",n+=t.codecs.map(function(e){return void 0!==e.preferredPayloadType?e.preferredPayloadType:e.payloadType}).join(" ")+"\r\n",n+="c=IN IP4 0.0.0.0\r\n",n+="a=rtcp:9 IN IP4 0.0.0.0\r\n",t.codecs.forEach(function(e){n+=g.writeRtpMap(e),n+=g.writeFtmp(e),n+=g.writeRtcpFb(e)}),n+="a=rtcp-mux\r\n"},g.writeSessionBoilerplate=function(){return"v=0\r\no=thisisadapterortc 8169639915646943137 2 IN IP4 127.0.0.1\r\ns=-\r\nt=0 0\r\n"},g.writeMediaSection=function(e,t,n,r){var i=g.writeRtpDescription(e.kind,t);if(i+=g.writeIceParameters(e.iceGatherer.getLocalParameters()),i+=g.writeDtlsParameters(e.dtlsTransport.getLocalParameters(),"offer"===n?"actpass":"active"),i+="a=mid:"+e.mid+"\r\n",i+=e.rtpSender&&e.rtpReceiver?"a=sendrecv\r\n":e.rtpSender?"a=sendonly\r\n":e.rtpReceiver?"a=recvonly\r\n":"a=inactive\r\n",e.rtpSender){var o="msid:"+r.id+" "+e.rtpSender.track.id+"\r\n";i+="a="+o,i+="a=ssrc:"+e.sendSsrc+" "+o}return i+="a=ssrc:"+e.sendSsrc+" cname:"+m+"\r\n"},g.getDirection=function(e,t){for(var n=g.splitLines(e),r=0;r<n.length;r++)switch(n[r]){case"a=sendrecv":case"a=sendonly":case"a=recvonly":case"a=inactive":return n[r].substr(2)}return t?g.getDirection(t):"sendrecv"},window.RTCIceCandidate||(window.RTCIceCandidate=function(e){return e}),window.RTCSessionDescription||(window.RTCSessionDescription=function(e){return e}),window.RTCPeerConnection=function(e){var t=this;if(this.onicecandidate=null,this.onaddstream=null,this.onremovestream=null,this.onsignalingstatechange=null,this.oniceconnectionstatechange=null,this.onnegotiationneeded=null,this.ondatachannel=null,this.localStreams=[],this.remoteStreams=[],this.getLocalStreams=function(){return t.localStreams},this.getRemoteStreams=function(){return t.remoteStreams},this.localDescription=new S({type:"",sdp:""}),this.remoteDescription=new S({type:"",sdp:""}),this.signalingState="stable",this.iceConnectionState="new",this.iceOptions={gatherPolicy:"all",iceServers:[]},e&&e.iceTransportPolicy)switch(e.iceTransportPolicy){case"all":case"relay":this.iceOptions.gatherPolicy=e.iceTransportPolicy;break;case"none":throw new TypeError('iceTransportPolicy "none" not supported')}e&&e.iceServers&&e.iceServers.forEach(function(e){if(e.urls){var n;n="string"==typeof e.urls?e.urls:e.urls[0],-1!==n.indexOf("transport=udp")&&t.iceServers.push({username:e.username,credential:e.credential,urls:n})}}),this.transceivers=[],this._localIceCandidatesBuffer=[]},window.RTCPeerConnection.prototype._emitBufferedCandidates=function(){var e=this;this._localIceCandidatesBuffer.forEach(function(t){null!==e.onicecandidate&&e.onicecandidate(t)}),this._localIceCandidatesBuffer=[]},window.RTCPeerConnection.prototype.addStream=function(e){this.localStreams.push(e.clone()),this._maybeFireNegotiationNeeded()},window.RTCPeerConnection.prototype.removeStream=function(e){var t=this.localStreams.indexOf(e);t>-1&&(this.localStreams.splice(t,1),this._maybeFireNegotiationNeeded())},window.RTCPeerConnection.prototype._getCommonCapabilities=function(e,t){var n={codecs:[],headerExtensions:[],fecMechanisms:[]};return e.codecs.forEach(function(e){for(var r=0;r<t.codecs.length;r++){var i=t.codecs[r];if(e.name.toLowerCase()===i.name.toLowerCase()&&e.clockRate===i.clockRate&&e.numChannels===i.numChannels){n.codecs.push(i);break}}}),e.headerExtensions.forEach(function(e){for(var r=0;r<t.headerExtensions.length;r++){var i=t.headerExtensions[r];if(e.uri===i.uri){n.headerExtensions.push(i);break}}}),n},window.RTCPeerConnection.prototype._createIceAndDtlsTransports=function(e,t){var n=this,r=new RTCIceGatherer(n.iceOptions),i=new RTCIceTransport(r);r.onlocalcandidate=function(o){var a={};a.candidate={sdpMid:e,sdpMLineIndex:t};var s=o.candidate;s&&0!==Object.keys(s).length?(s.component="RTCP"===i.component?2:1,a.candidate.candidate=g.writeCandidate(s)):(void 0===r.state&&(r.state="completed"),a.candidate.candidate="candidate:1 1 udp 1 0.0.0.0 9 typ endOfCandidates");var c=n.transceivers.every(function(e){return e.iceGatherer&&"completed"===e.iceGatherer.state});null!==n.onicecandidate&&(n.localDescription&&""===n.localDescription.type?(n._localIceCandidatesBuffer.push(a),c&&n._localIceCandidatesBuffer.push({})):(n.onicecandidate(a),c&&n.onicecandidate({})))},i.onicestatechange=function(){n._updateConnectionState()};var o=new RTCDtlsTransport(i);return o.ondtlsstatechange=function(){n._updateConnectionState()},o.onerror=function(){o.state="failed",n._updateConnectionState()},{iceGatherer:r,iceTransport:i,dtlsTransport:o}},window.RTCPeerConnection.prototype._transceive=function(e,t,n){var r=this._getCommonCapabilities(e.localCapabilities,e.remoteCapabilities);t&&e.rtpSender&&(r.encodings=[{ssrc:e.sendSsrc}],r.rtcp={cname:m,ssrc:e.recvSsrc},e.rtpSender.send(r)),n&&e.rtpReceiver&&(r.encodings=[{ssrc:e.recvSsrc}],r.rtcp={cname:e.cname,ssrc:e.sendSsrc},e.rtpReceiver.receive(r))},window.RTCPeerConnection.prototype.setLocalDescription=function(e){var t=this;if("offer"===e.type)this._pendingOffer&&(this.transceivers=this._pendingOffer,delete this._pendingOffer);else if("answer"===e.type){var n=g.splitSections(t.remoteDescription.sdp),r=n.shift();n.forEach(function(e,n){var i=t.transceivers[n],o=i.iceGatherer,a=i.iceTransport,s=i.dtlsTransport,c=i.localCapabilities,u=i.remoteCapabilities,p="0"===e.split("\n",1)[0].split(" ",2)[1];if(!p){var d=g.getIceParameters(e,r);a.start(o,d,"controlled");var l=g.getDtlsParameters(e,r);s.start(l);var f=t._getCommonCapabilities(c,u);t._transceive(i,f.codecs.length>0,!1)}})}switch(this.localDescription=e,e.type){case"offer":this._updateSignalingState("have-local-offer");break;case"answer":this._updateSignalingState("stable");break;default:throw new TypeError('unsupported type "'+e.type+'"')}var i=arguments.length>1&&"function"==typeof arguments[1];if(i){var o=arguments[1];window.setTimeout(function(){o(),t._emitBufferedCandidates()},0)}var a=Promise.resolve();return a.then(function(){i||window.setTimeout(t._emitBufferedCandidates.bind(t),0)}),a},window.RTCPeerConnection.prototype.setRemoteDescription=function(e){var t=this,n=new MediaStream,r=g.splitSections(e.sdp),i=r.shift();switch(r.forEach(function(r,o){var a,s,c,u,p,d,l,f,h,m,v,y=g.splitLines(r),b=y[0].substr(2).split(" "),w=b[0],S="0"===b[1],C=g.getDirection(r,i),k=g.parseRtpParameters(r);S||(m=g.getIceParameters(r,i),v=g.getDtlsParameters(r,i));var T,R=g.matchPrefix(r,"a=mid:")[0].substr(6),x=g.matchPrefix(r,"a=ssrc:").map(function(e){return g.parseSsrcMedia(e)}).filter(function(e){return"cname"===e.attribute})[0];if(x&&(f=parseInt(x.ssrc,10),T=x.value),"offer"===e.type){var E=t._createIceAndDtlsTransports(R,o);if(h=RTCRtpReceiver.getCapabilities(w),l=1001*(2*o+2),d=new RTCRtpReceiver(E.dtlsTransport,w),n.addTrack(d.track),t.localStreams.length>0&&t.localStreams[0].getTracks().length>=o){var P=t.localStreams[0].getTracks()[o];p=new RTCRtpSender(P,E.dtlsTransport)}t.transceivers[o]={iceGatherer:E.iceGatherer,iceTransport:E.iceTransport,dtlsTransport:E.dtlsTransport,localCapabilities:h,remoteCapabilities:k,rtpSender:p,rtpReceiver:d,kind:w,mid:R,cname:T,sendSsrc:l,recvSsrc:f},t._transceive(t.transceivers[o],!1,"sendrecv"===C||"sendonly"===C)}else"answer"!==e.type||S||(a=t.transceivers[o],s=a.iceGatherer,c=a.iceTransport,u=a.dtlsTransport,p=a.rtpSender,d=a.rtpReceiver,l=a.sendSsrc,h=a.localCapabilities,t.transceivers[o].recvSsrc=f,t.transceivers[o].remoteCapabilities=k,t.transceivers[o].cname=T,c.start(s,m,"controlling"),u.start(v),t._transceive(a,"sendrecv"===C||"recvonly"===C,"sendrecv"===C||"sendonly"===C),!d||"sendrecv"!==C&&"sendonly"!==C?delete a.rtpReceiver:n.addTrack(d.track))}),this.remoteDescription=e,e.type){case"offer":this._updateSignalingState("have-remote-offer");break;case"answer":this._updateSignalingState("stable");break;default:throw new TypeError('unsupported type "'+e.type+'"')}return window.setTimeout(function(){null!==t.onaddstream&&n.getTracks().length&&(t.remoteStreams.push(n),window.setTimeout(function(){t.onaddstream({stream:n})},0))},0),arguments.length>1&&"function"==typeof arguments[1]&&window.setTimeout(arguments[1],0),Promise.resolve()},window.RTCPeerConnection.prototype.close=function(){this.transceivers.forEach(function(e){e.iceTransport&&e.iceTransport.stop(),e.dtlsTransport&&e.dtlsTransport.stop(),e.rtpSender&&e.rtpSender.stop(),e.rtpReceiver&&e.rtpReceiver.stop()}),this._updateSignalingState("closed")},window.RTCPeerConnection.prototype._updateSignalingState=function(e){this.signalingState=e,null!==this.onsignalingstatechange&&this.onsignalingstatechange()},window.RTCPeerConnection.prototype._maybeFireNegotiationNeeded=function(){null!==this.onnegotiationneeded&&this.onnegotiationneeded()},window.RTCPeerConnection.prototype._updateConnectionState=function(){var e,t=this,n={"new":0,closed:0,connecting:0,checking:0,connected:0,completed:0,failed:0};this.transceivers.forEach(function(e){n[e.iceTransport.state]++,n[e.dtlsTransport.state]++}),n.connected+=n.completed,e="new",n.failed>0?e="failed":n.connecting>0||n.checking>0?e="connecting":n.disconnected>0?e="disconnected":n.new>0?e="new":(n.connecting>0||n.completed>0)&&(e="connected"),e!==t.iceConnectionState&&(t.iceConnectionState=e,null!==this.oniceconnectionstatechange&&this.oniceconnectionstatechange())},window.RTCPeerConnection.prototype.createOffer=function(){var e=this;if(this._pendingOffer)throw new Error("createOffer called while there is a pending offer.");var t;1===arguments.length&&"function"!=typeof arguments[0]?t=arguments[0]:3===arguments.length&&(t=arguments[2]);var n=[],r=0,i=0;if(this.localStreams.length&&(r=this.localStreams[0].getAudioTracks().length,i=this.localStreams[0].getVideoTracks().length),t){if(t.mandatory||t.optional)throw new TypeError("Legacy mandatory/optional constraints not supported.");void 0!==t.offerToReceiveAudio&&(r=t.offerToReceiveAudio),void 0!==t.offerToReceiveVideo&&(i=t.offerToReceiveVideo)}for(this.localStreams.length&&this.localStreams[0].getTracks().forEach(function(e){n.push({kind:e.kind,track:e,wantReceive:"audio"===e.kind?r>0:i>0}),"audio"===e.kind?r--:"video"===e.kind&&i--});r>0||i>0;)r>0&&(n.push({kind:"audio",wantReceive:!0}),r--),i>0&&(n.push({kind:"video",wantReceive:!0}),i--);var o=g.writeSessionBoilerplate(),a=[];n.forEach(function(t,n){var r,i,s=t.track,c=t.kind,u=h(),p=e._createIceAndDtlsTransports(u,n),d=RTCRtpSender.getCapabilities(c),l=1001*(2*n+1);s&&(r=new RTCRtpSender(s,p.dtlsTransport)),t.wantReceive&&(i=new RTCRtpReceiver(p.dtlsTransport,c)),a[n]={iceGatherer:p.iceGatherer,iceTransport:p.iceTransport,dtlsTransport:p.dtlsTransport,localCapabilities:d,remoteCapabilities:null,rtpSender:r,rtpReceiver:i,kind:c,mid:u,sendSsrc:l,recvSsrc:null};var f=a[n];o+=g.writeMediaSection(f,f.localCapabilities,"offer",e.localStreams[0])}),this._pendingOffer=a;var s=new S({type:"offer",sdp:o});return arguments.length&&"function"==typeof arguments[0]&&window.setTimeout(arguments[0],0,s),Promise.resolve(s)},window.RTCPeerConnection.prototype.createAnswer=function(){var e,t=this;1===arguments.length&&"function"!=typeof arguments[0]?e=arguments[0]:3===arguments.length&&(e=arguments[2]);var n=g.writeSessionBoilerplate();this.transceivers.forEach(function(e){var r=t._getCommonCapabilities(e.localCapabilities,e.remoteCapabilities);n+=g.writeMediaSection(e,r,"answer",t.localStreams[0])});var r=new S({type:"answer",sdp:n});return arguments.length&&"function"==typeof arguments[0]&&window.setTimeout(arguments[0],0,r),Promise.resolve(r)},window.RTCPeerConnection.prototype.addIceCandidate=function(e){var t=e.sdpMLineIndex;if(e.sdpMid)for(var n=0;n<this.transceivers.length;n++)if(this.transceivers[n].mid===e.sdpMid){t=n;break}var r=this.transceivers[t];if(r){var i=Object.keys(e.candidate).length>0?g.parseCandidate(e.candidate):{};if("tcp"===i.protocol&&0===i.port)return;if("1"!==i.component)return;"endOfCandidates"===i.type&&(i={}),r.iceTransport.addRemoteCandidate(i)}return arguments.length>1&&"function"==typeof arguments[1]&&window.setTimeout(arguments[1],0),Promise.resolve()},window.RTCPeerConnection.prototype.getStats=function(){var e=[];this.transceivers.forEach(function(t){["rtpSender","rtpReceiver","iceGatherer","iceTransport","dtlsTransport"].forEach(function(n){t[n]&&e.push(t[n].getStats())})});var t=arguments.length>1&&"function"==typeof arguments[1]&&arguments[1];return new Promise(function(n){var r={};Promise.all(e).then(function(e){e.forEach(function(e){Object.keys(e).forEach(function(t){r[t]=e[t]})}),t&&window.setTimeout(t,0,r),n(r)})})}}}else p.log("Browser does not appear to be WebRTC-capable");else p.log("This does not appear to be a browser"),s="not a browser";"object"!=typeof window||!window.RTCPeerConnection||"ontrack"in window.RTCPeerConnection.prototype||Object.defineProperty(window.RTCPeerConnection.prototype,"ontrack",{get:function(){return this._ontrack},set:function(e){var t=this;this._ontrack&&(this.removeEventListener("track",this._ontrack),this.removeEventListener("addstream",this._ontrackpoly)),this.addEventListener("track",this._ontrack=e),this.addEventListener("addstream",this._ontrackpoly=function(e){"chrome"===s&&e.stream.addEventListener("addtrack",function(n){var r=new Event("track");r.track=n.track,r.receiver={track:n.track},r.streams=[e.stream],t.dispatchEvent(r)}),e.stream.getTracks().forEach(function(t){var n=new Event("track");n.track=t,n.receiver={track:t},n.streams=[e.stream],this.dispatchEvent(n)}.bind(this))}.bind(this))}});var v={};try{Object.defineProperty(v,"version",{set:function(e){c=e}})}catch(y){}if("undefined"!=typeof n){var b,w,S;"undefined"!=typeof window&&(b=window.RTCPeerConnection,w=window.RTCIceCandidate,S=window.RTCSessionDescription),n.exports={RTCPeerConnection:b,RTCIceCandidate:w,RTCSessionDescription:S,getUserMedia:i,attachMediaStream:o,reattachMediaStream:a,webrtcDetectedBrowser:s,webrtcDetectedVersion:c,webrtcMinimumVersion:u,webrtcTesting:v,webrtcUtils:p}}else"function"==typeof t&&"function"==typeof e&&e([],function(){return{RTCPeerConnection:window.RTCPeerConnection,RTCIceCandidate:window.RTCIceCandidate,RTCSessionDescription:window.RTCSessionDescription,getUserMedia:i,attachMediaStream:o,reattachMediaStream:a,webrtcDetectedBrowser:s,webrtcDetectedVersion:c,webrtcMinimumVersion:u,webrtcTesting:v,webrtcUtils:p}})},{}],17:[function(e,t){var n,r;window.mozRTCPeerConnection||navigator.mozGetUserMedia?(n="moz",r=parseInt(navigator.userAgent.match(/Firefox\/([0-9]+)\./)[1],10)):(window.webkitRTCPeerConnection||navigator.webkitGetUserMedia)&&(n="webkit",r=navigator.userAgent.match(/Chrom(e|ium)/)&&parseInt(navigator.userAgent.match(/Chrom(e|ium)\/([0-9]+)\./)[2],10));var i=window.mozRTCPeerConnection||window.webkitRTCPeerConnection,o=window.mozRTCIceCandidate||window.RTCIceCandidate,a=window.mozRTCSessionDescription||window.RTCSessionDescription,s=window.webkitMediaStream||window.MediaStream,c="https:"===window.location.protocol&&("webkit"===n&&r>=26||"moz"===n&&r>=33),u=window.AudioContext||window.webkitAudioContext,p=document.createElement("video"),d=p&&p.canPlayType&&"probably"===p.canPlayType('video/webm; codecs="vp8", vorbis'),l=navigator.getUserMedia||navigator.webkitGetUserMedia||navigator.msGetUserMedia||navigator.mozGetUserMedia;t.exports={prefix:n,browserVersion:r,support:!!i&&d&&!!l,supportRTCPeerConnection:!!i,supportVp8:d,supportGetUserMedia:!!l,supportDataChannel:!!(i&&i.prototype&&i.prototype.createDataChannel),supportWebAudio:!(!u||!u.prototype.createMediaStreamSource),supportMediaStream:!(!s||!s.prototype.removeTrack),supportScreenSharing:!!c,dataChannel:!!(i&&i.prototype&&i.prototype.createDataChannel),webAudio:!(!u||!u.prototype.createMediaStreamSource),mediaStream:!(!s||!s.prototype.removeTrack),screenSharing:!!c,AudioContext:u,PeerConnection:i,SessionDescription:a,IceCandidate:o,MediaStream:s,getUserMedia:l}},{}],10:[function(e,t){function n(e){c.call(this);var t,n=this.config={autoAdjustMic:!1,detectSpeakingEvents:!1,audioFallback:!1,media:{audio:!0,video:!0},logger:p};for(t in e)this.config[t]=e[t];this.logger=n.logger,this._log=this.logger.log.bind(this.logger,"LocalMedia:"),this._logerror=this.logger.error.bind(this.logger,"LocalMedia:"),this.screenSharingSupport=o.screenSharing,this.localStreams=[],this.localScreens=[],o.support||this._logerror("Your browser does not support local media capture.")}var r=e("util"),i=e("hark"),o=e("webrtcsupport"),a=e("getusermedia"),s=e("getscreenmedia"),c=e("wildemitter"),u=e("mediastream-gain"),p=e("mockconsole");r.inherits(n,c),n.prototype.start=function(e,t){var n=this,r=e||this.config.media;a(r,function(e,i){if(e){if(n.config.audioFallback&&"DevicesNotFoundError"===e.name&&r.video!==!1)return r.video=!1,n.start(r,t),void 0}else r.audio&&n.config.detectSpeakingEvents&&n.setupAudioMonitor(i,n.config.harkOptions),n.localStreams.push(i),n.config.autoAdjustMic&&(n.gainController=new u(i),n.setMicIfEnabled(.5)),i.onended=function(){},n.emit("localStream",i);return t?t(e,i):void 0})},n.prototype.stop=function(e){var t=this;if(e){e.getTracks().forEach(function(e){e.stop()});var n=t.localStreams.indexOf(e);n>-1?(t.emit("localStreamStopped",e),t.localStreams=t.localStreams.splice(n,1)):(n=t.localScreens.indexOf(e),n>-1&&(t.emit("localScreenStopped",e),t.localScreens=t.localScreens.splice(n,1)))}else this.stopStreams(),this.stopScreenShare()},n.prototype.stopStreams=function(){var e=this;this.audioMonitor&&(this.audioMonitor.stop(),delete this.audioMonitor),this.localStreams.forEach(function(t){t.getTracks().forEach(function(e){e.stop()}),e.emit("localStreamStopped",t)}),this.localStreams=[]},n.prototype.startScreenShare=function(e){var t=this;s(function(n,r){return n||(t.localScreens.push(r),r.onended=function(){var e=t.localScreens.indexOf(r);e>-1&&t.localScreens.splice(e,1),t.emit("localScreenStopped",r)},t.emit("localScreen",r)),e?e(n,r):void 0})},n.prototype.stopScreenShare=function(e){var t=this;e?(e.getTracks().forEach(function(e){e.stop()}),this.emit("localScreenStopped",e)):(this.localScreens.forEach(function(e){e.getTracks().forEach(function(e){e.stop()}),t.emit("localScreenStopped",e)}),this.localScreens=[])},n.prototype.mute=function(){this._audioEnabled(!1),this.hardMuted=!0,this.emit("audioOff")},n.prototype.unmute=function(){this._audioEnabled(!0),this.hardMuted=!1,this.emit("audioOn")},n.prototype.setupAudioMonitor=function(e,t){this._log("Setup audio");var n,r=this.audioMonitor=i(e,t),o=this;r.on("speaking",function(){o.emit("speaking"),o.hardMuted||o.setMicIfEnabled(1)}),r.on("stopped_speaking",function(){n&&clearTimeout(n),n=setTimeout(function(){o.emit("stoppedSpeaking"),o.hardMuted||o.setMicIfEnabled(.5)},1e3)}),r.on("volume_change",function(e,t){o.emit("volumeChange",e,t)})},n.prototype.setMicIfEnabled=function(e){this.config.autoAdjustMic&&this.gainController.setGain(e)},n.prototype.pauseVideo=function(){this._videoEnabled(!1),this.emit("videoOff")},n.prototype.resumeVideo=function(){this._videoEnabled(!0),this.emit("videoOn")},n.prototype.pause=function(){this.mute(),this.pauseVideo()},n.prototype.resume=function(){this.unmute(),this.resumeVideo()},n.prototype._audioEnabled=function(e){this.setMicIfEnabled(e?1:0),this.localStreams.forEach(function(t){t.getAudioTracks().forEach(function(t){t.enabled=!!e})})},n.prototype._videoEnabled=function(e){this.localStreams.forEach(function(t){t.getVideoTracks().forEach(function(t){t.enabled=!!e})})},n.prototype.isAudioEnabled=function(){var e=!0;return this.localStreams.forEach(function(t){t.getAudioTracks().forEach(function(t){e=e&&t.enabled})}),e},n.prototype.isVideoEnabled=function(){var e=!0;return this.localStreams.forEach(function(t){t.getVideoTracks().forEach(function(t){e=e&&t.enabled})}),e},n.prototype.startLocalMedia=n.prototype.start,n.prototype.stopLocalMedia=n.prototype.stop,Object.defineProperty(n.prototype,"localStream",{get:function(){return this.localStreams.length>0?this.localStreams[0]:null}}),Object.defineProperty(n.prototype,"localScreen",{get:function(){return this.localScreens.length>0?this.localScreens[0]:null}}),t.exports=n},{getscreenmedia:20,getusermedia:19,hark:18,"mediastream-gain":21,mockconsole:6,util:8,webrtcsupport:17,wildemitter:4}],22:[function(e,t){function n(e,t,n){return e.on(t,n),{destroy:function(){e.removeListener(t,n)}}}t.exports=n},{}],11:[function(e,t,n){function r(e,t){"object"==typeof e&&(t=e,e=void 0),t=t||{};var n,r=i(e),o=r.source,u=r.id,p=r.path,d=c[u]&&p in c[u].nsps,l=t.forceNew||t["force new connection"]||!1===t.multiplex||d;return l?(s("ignoring socket cache for %s",o),n=a(o,t)):(c[u]||(s("new io instance for %s",o),c[u]=a(o,t)),n=c[u]),n.socket(r.path)}var i=e("./url"),o=e("socket.io-parser"),a=e("./manager"),s=e("debug")("socket.io-client");t.exports=n=r;var c=n.managers={};n.protocol=o.protocol,n.connect=r,n.Manager=e("./manager"),n.Socket=e("./socket")},{"./manager":24,"./socket":25,"./url":23,debug:26,"socket.io-parser":27}],14:[function(e,t){function n(e){i.call(this);var t=e||{};this.config={chunksize:16384,pacing:0};var n;for(n in t)this.config[n]=t[n];this.file=null,this.channel=null}function r(){i.call(this),this.receiveBuffer=[],this.received=0,this.metadata={},this.channel=null}var i=e("wildemitter"),o=e("util");o.inherits(n,i),n.prototype.send=function(e,t){var n=this;this.file=e,this.channel=t;var r=function(t){var i=new window.FileReader;i.onload=function(){return function(i){n.channel.send(i.target.result),n.emit("progress",t,e.size,i.target.result),e.size>t+i.target.result.byteLength?window.setTimeout(r,n.config.pacing,t+n.config.chunksize):(n.emit("progress",e.size,e.size,null),n.emit("sentFile"))}}(e);var o=e.slice(t,t+n.config.chunksize);i.readAsArrayBuffer(o)};window.setTimeout(r,0,0)},o.inherits(r,i),r.prototype.receive=function(e,t){var n=this;e&&(this.metadata=e),this.channel=t,t.binaryType="arraybuffer",this.channel.onmessage=function(e){var t=e.data.byteLength;n.received+=t,n.receiveBuffer.push(e.data),n.emit("progress",n.received,n.metadata.size,e.data),n.received===n.metadata.size?(n.emit("receivedFile",new window.Blob(n.receiveBuffer),n.metadata),n.receiveBuffer=[]):n.received>n.metadata.size&&(console.error("received more than expected, discarding..."),n.receiveBuffer=[])}},t.exports={},t.exports.support="undefined"!=typeof window&&window&&window.File&&window.FileReader&&window.Blob,t.exports.Sender=n,t.exports.Receiver=r},{util:8,wildemitter:4}],15:[function(e,t){function n(e,t,n){var r,i=this;s.call(this),e=e||{},e.iceServers=e.iceServers||[],this.enableChromeNativeSimulcast=!1,t&&t.optional&&"chrome"===u.webrtcDetectedBrowser&&null===navigator.appVersion.match(/Chromium\//)&&t.optional.forEach(function(e){e.enableChromeNativeSimulcast&&(i.enableChromeNativeSimulcast=!0)}),this.enableMultiStreamHacks=!1,t&&t.optional&&"chrome"===u.webrtcDetectedBrowser&&t.optional.forEach(function(e){e.enableMultiStreamHacks&&(i.enableMultiStreamHacks=!0)}),this.restrictBandwidth=0,t&&t.optional&&t.optional.forEach(function(e){e.andyetRestrictBandwidth&&(i.restrictBandwidth=e.andyetRestrictBandwidth)}),this.batchIceCandidates=0,t&&t.optional&&t.optional.forEach(function(e){e.andyetBatchIce&&(i.batchIceCandidates=e.andyetBatchIce)}),this.batchedIceCandidates=[],t&&t.optional&&"chrome"===u.webrtcDetectedBrowser&&t.optional.forEach(function(e){e.andyetFasterICE&&(i.eliminateDuplicateCandidates=e.andyetFasterICE)}),t&&t.optional&&t.optional.forEach(function(e){e.andyetDontSignalCandidates&&(i.dontSignalCandidates=e.andyetDontSignalCandidates)}),this.assumeSetLocalSuccess=!1,t&&t.optional&&t.optional.forEach(function(e){e.andyetAssumeSetLocalSuccess&&(i.assumeSetLocalSuccess=e.andyetAssumeSetLocalSuccess)}),"firefox"===u.webrtcDetectedBrowser&&t&&t.optional&&(this.wtFirefox=0,t.optional.forEach(function(e){e.andyetFirefoxMakesMeSad&&(i.wtFirefox=e.andyetFirefoxMakesMeSad,i.wtFirefox>0&&(i.firefoxcandidatebuffer=[]))})),this.pc=new c(e,t,n),this.getLocalStreams=this.pc.getLocalStreams.bind(this.pc),this.getRemoteStreams=this.pc.getRemoteStreams.bind(this.pc),this.addStream=this.pc.addStream.bind(this.pc),this.removeStream=this.pc.removeStream.bind(this.pc),this.pc.on("*",function(){i.emit.apply(i,arguments)}),this.pc.onremovestream=this.emit.bind(this,"removeStream"),this.pc.onaddstream=this.emit.bind(this,"addStream"),this.pc.onnegotiationneeded=this.emit.bind(this,"negotiationNeeded"),this.pc.oniceconnectionstatechange=this.emit.bind(this,"iceConnectionStateChange"),this.pc.onsignalingstatechange=this.emit.bind(this,"signalingStateChange"),this.pc.onicecandidate=this._onIce.bind(this),this.pc.ondatachannel=this._onDataChannel.bind(this),this.localDescription={contents:[]},this.remoteDescription={contents:[]},this.activeChannel=n,this.config={debug:!1,ice:{},sid:"",isInitiator:!0,sdpSessionID:Date.now(),useJingle:!1};for(r in e)this.config[r]=e[r];this.config.debug&&this.on("*",function(){var t=e.logger||console;t.log("PeerConnection event:",arguments)
}),this.hadLocalStunCandidate=!1,this.hadRemoteStunCandidate=!1,this.hadLocalRelayCandidate=!1,this.hadRemoteRelayCandidate=!1,this.hadLocalIPv6Candidate=!1,this.hadRemoteIPv6Candidate=!1,this._remoteDataChannels=[],this._localDataChannels=[],this._candidateBuffer=[]}var r=e("util"),i=e("lodash.foreach"),o=e("lodash.pluck"),a=e("sdp-jingle-json"),s=e("wildemitter"),c=e("traceablepeerconnection"),u=e("webrtc-adapter");r.inherits(n,s),Object.defineProperty(n.prototype,"signalingState",{get:function(){return this.pc.signalingState}}),Object.defineProperty(n.prototype,"iceConnectionState",{get:function(){return this.pc.iceConnectionState}}),n.prototype._role=function(){return this.isInitiator?"initiator":"responder"},n.prototype.addStream=function(e){this.localStream=e,this.pc.addStream(e)},n.prototype._checkLocalCandidate=function(e){var t=a.toCandidateJSON(e);"srflx"==t.type?this.hadLocalStunCandidate=!0:"relay"==t.type&&(this.hadLocalRelayCandidate=!0),-1!=t.ip.indexOf(":")&&(this.hadLocalIPv6Candidate=!0)},n.prototype._checkRemoteCandidate=function(e){var t=a.toCandidateJSON(e);"srflx"==t.type?this.hadRemoteStunCandidate=!0:"relay"==t.type&&(this.hadRemoteRelayCandidate=!0),-1!=t.ip.indexOf(":")&&(this.hadRemoteIPv6Candidate=!0)},n.prototype.processIce=function(e,t){t=t||function(){};var n=this;if("closed"===this.pc.signalingState)return t();if(e.contents||e.jingle&&e.jingle.contents){var r=o(this.remoteDescription.contents,"name"),i=e.contents||e.jingle.contents;i.forEach(function(e){var t=e.transport||{},i=t.candidates||[],o=r.indexOf(e.name),s=e.name;i.forEach(function(e){var t=a.toCandidateSDP(e)+"\r\n";n.pc.addIceCandidate(new RTCIceCandidate({candidate:t,sdpMLineIndex:o,sdpMid:s}),function(){},function(e){n.emit("error",e)}),n._checkRemoteCandidate(t)})})}else{if(e.candidate&&0!==e.candidate.candidate.indexOf("a=")&&(e.candidate.candidate="a="+e.candidate.candidate),this.wtFirefox&&null!==this.firefoxcandidatebuffer&&this.pc.localDescription&&"offer"===this.pc.localDescription.type)return this.firefoxcandidatebuffer.push(e.candidate),t();n.pc.addIceCandidate(new RTCIceCandidate(e.candidate),function(){},function(e){n.emit("error",e)}),n._checkRemoteCandidate(e.candidate.candidate)}t()},n.prototype.offer=function(e,t){var n=this,r=2===arguments.length,o=r&&e?e:{offerToReceiveAudio:1,offerToReceiveVideo:1};return t=r?t:e,t=t||function(){},"closed"===this.pc.signalingState?t("Already closed"):(this.pc.createOffer(function(e){var r={type:"offer",sdp:e.sdp};n.assumeSetLocalSuccess&&(n.emit("offer",r),t(null,r)),n._candidateBuffer=[],n.pc.setLocalDescription(e,function(){var o;n.config.useJingle&&(o=a.toSessionJSON(e.sdp,{role:n._role(),direction:"outgoing"}),o.sid=n.config.sid,n.localDescription=o,i(o.contents,function(e){var t=e.transport||{};t.ufrag&&(n.config.ice[e.name]={ufrag:t.ufrag,pwd:t.pwd})}),r.jingle=o),r.sdp.split("\r\n").forEach(function(e){0===e.indexOf("a=candidate:")&&n._checkLocalCandidate(e)}),n.assumeSetLocalSuccess||(n.emit("offer",r),t(null,r))},function(e){n.emit("error",e),t(e)})},function(e){n.emit("error",e),t(e)},o),void 0)},n.prototype.handleOffer=function(e,t){t=t||function(){};var n=this;if(e.type="offer",e.jingle){if(this.enableChromeNativeSimulcast&&e.jingle.contents.forEach(function(e){"video"===e.name&&(e.description.googConferenceFlag=!0)}),this.enableMultiStreamHacks&&e.jingle.contents.forEach(function(e){if("video"===e.name){var t=e.description.sources||[];(0===t.length||"3735928559"!==t[0].ssrc)&&(t.unshift({ssrc:"3735928559",parameters:[{key:"cname",value:"deadbeef"},{key:"msid",value:"mixyourfecintothis please"}]}),e.description.sources=t)}}),n.restrictBandwidth>0&&e.jingle.contents.length>=2&&"video"===e.jingle.contents[1].name){var r=e.jingle.contents[1],i=r.description&&r.description.bandwidth;i||(e.jingle.contents[1].description.bandwidth={type:"AS",bandwidth:n.restrictBandwidth.toString()},e.sdp=a.toSessionSDP(e.jingle,{sid:n.config.sdpSessionID,role:n._role(),direction:"outgoing"}))}e.sdp=a.toSessionSDP(e.jingle,{sid:n.config.sdpSessionID,role:n._role(),direction:"incoming"}),n.remoteDescription=e.jingle}e.sdp.split("\r\n").forEach(function(e){0===e.indexOf("a=candidate:")&&n._checkRemoteCandidate(e)}),n.pc.setRemoteDescription(new RTCSessionDescription(e),function(){t()},t)},n.prototype.answerAudioOnly=function(e){var t={mandatory:{OfferToReceiveAudio:!0,OfferToReceiveVideo:!1}};this._answer(t,e)},n.prototype.answerBroadcastOnly=function(e){var t={mandatory:{OfferToReceiveAudio:!1,OfferToReceiveVideo:!1}};this._answer(t,e)},n.prototype.answer=function(e,t){var n=2===arguments.length,r=n?t:e,i=n&&e?e:{mandatory:{OfferToReceiveAudio:!0,OfferToReceiveVideo:!0}};this._answer(i,r)},n.prototype.handleAnswer=function(e,t){t=t||function(){};var n=this;e.jingle&&(e.sdp=a.toSessionSDP(e.jingle,{sid:n.config.sdpSessionID,role:n._role(),direction:"incoming"}),n.remoteDescription=e.jingle),e.sdp.split("\r\n").forEach(function(e){0===e.indexOf("a=candidate:")&&n._checkRemoteCandidate(e)}),n.pc.setRemoteDescription(new RTCSessionDescription(e),function(){n.wtFirefox&&window.setTimeout(function(){n.firefoxcandidatebuffer.forEach(function(e){n.pc.addIceCandidate(new RTCIceCandidate(e),function(){},function(e){n.emit("error",e)}),n._checkRemoteCandidate(e.candidate)}),n.firefoxcandidatebuffer=null},n.wtFirefox),t(null)},t)},n.prototype.close=function(){this.pc.close(),this._localDataChannels=[],this._remoteDataChannels=[],this.emit("close")},n.prototype._answer=function(e,t){t=t||function(){};var n=this;if(!this.pc.remoteDescription)throw new Error("remoteDescription not set");return"closed"===this.pc.signalingState?t("Already closed"):(n.pc.createAnswer(function(e){var r=[];if(n.enableChromeNativeSimulcast&&(e.jingle=a.toSessionJSON(e.sdp,{role:n._role(),direction:"outgoing"}),e.jingle.contents.length>=2&&"video"===e.jingle.contents[1].name)){var i=e.jingle.contents[1].description.sourceGroups||[],o=!1;if(i.forEach(function(e){"SIM"==e.semantics&&(o=!0)}),!o&&e.jingle.contents[1].description.sources.length){var s=JSON.parse(JSON.stringify(e.jingle.contents[1].description.sources[0]));s.ssrc=""+Math.floor(4294967295*Math.random()),e.jingle.contents[1].description.sources.push(s),r.push(e.jingle.contents[1].description.sources[0].ssrc),r.push(s.ssrc),i.push({semantics:"SIM",sources:r});var c=JSON.parse(JSON.stringify(s));c.ssrc=""+Math.floor(4294967295*Math.random()),e.jingle.contents[1].description.sources.push(c),i.push({semantics:"FID",sources:[s.ssrc,c.ssrc]}),e.jingle.contents[1].description.sourceGroups=i,e.sdp=a.toSessionSDP(e.jingle,{sid:n.config.sdpSessionID,role:n._role(),direction:"outgoing"})}}var u={type:"answer",sdp:e.sdp};n.assumeSetLocalSuccess&&(n.emit("answer",u),t(null,u)),n._candidateBuffer=[],n.pc.setLocalDescription(e,function(){if(n.config.useJingle){var r=a.toSessionJSON(e.sdp,{role:n._role(),direction:"outgoing"});r.sid=n.config.sid,n.localDescription=r,u.jingle=r}n.enableChromeNativeSimulcast&&(u.jingle||(u.jingle=a.toSessionJSON(e.sdp,{role:n._role(),direction:"outgoing"})),u.jingle.contents[1].description.sources.forEach(function(e,t){e.parameters=e.parameters.map(function(e){return"msid"===e.key&&(e.value+="-"+Math.floor(t/2)),e})}),u.sdp=a.toSessionSDP(u.jingle,{sid:n.sdpSessionID,role:n._role(),direction:"outgoing"})),u.sdp.split("\r\n").forEach(function(e){0===e.indexOf("a=candidate:")&&n._checkLocalCandidate(e)}),n.assumeSetLocalSuccess||(n.emit("answer",u),t(null,u))},function(e){n.emit("error",e),t(e)})},function(e){n.emit("error",e),t(e)},e),void 0)},n.prototype._onIce=function(e){var t=this;if(e.candidate){if(this.dontSignalCandidates)return;var n=e.candidate,r={candidate:{candidate:n.candidate,sdpMid:n.sdpMid,sdpMLineIndex:n.sdpMLineIndex}};this._checkLocalCandidate(n.candidate);var o,s,c=a.toCandidateJSON(n.candidate);if(this.eliminateDuplicateCandidates&&"relay"===c.type&&(o=this._candidateBuffer.filter(function(e){return"relay"===e.type}).map(function(e){return e.foundation+":"+e.component}),s=o.indexOf(c.foundation+":"+c.component),s>-1&&c.priority>>24>=o[s].priority>>24))return;if("max-bundle"===this.config.bundlePolicy&&(o=this._candidateBuffer.filter(function(e){return c.type===e.type}).map(function(e){return e.address+":"+e.port}),s=o.indexOf(c.address+":"+c.port),s>-1))return;if("require"===this.config.rtcpMuxPolicy&&"2"===c.component)return;if(this._candidateBuffer.push(c),t.config.useJingle){if(n.sdpMid||(n.sdpMid=t.pc.remoteDescription&&"offer"===t.pc.remoteDescription.type?t.remoteDescription.contents[n.sdpMLineIndex].name:t.localDescription.contents[n.sdpMLineIndex].name),!t.config.ice[n.sdpMid]){var u=a.toSessionJSON(t.pc.localDescription.sdp,{role:t._role(),direction:"outgoing"});i(u.contents,function(e){var n=e.transport||{};n.ufrag&&(t.config.ice[e.name]={ufrag:n.ufrag,pwd:n.pwd})})}if(r.jingle={contents:[{name:n.sdpMid,creator:t._role(),transport:{transType:"iceUdp",ufrag:t.config.ice[n.sdpMid].ufrag,pwd:t.config.ice[n.sdpMid].pwd,candidates:[c]}}]},t.batchIceCandidates>0)return 0===t.batchedIceCandidates.length&&window.setTimeout(function(){var e={};t.batchedIceCandidates.forEach(function(t){t=t.contents[0],e[t.name]||(e[t.name]=t),e[t.name].transport.candidates.push(t.transport.candidates[0])});var n={jingle:{contents:[]}};Object.keys(e).forEach(function(t){n.jingle.contents.push(e[t])}),t.batchedIceCandidates=[],t.emit("ice",n)},t.batchIceCandidates),t.batchedIceCandidates.push(r.jingle),void 0}this.emit("ice",r)}else this.emit("endOfCandidates")},n.prototype._onDataChannel=function(e){var t=e.channel;this._remoteDataChannels.push(t),this.emit("addChannel",t)},n.prototype.createDataChannel=function(e,t){var n=this.pc.createDataChannel(e,t);return this._localDataChannels.push(n),n},n.prototype.getStats=function(e){this.pc.getStats(null,function(t){e(null,t)},function(t){e(t)})},t.exports=n},{"lodash.foreach":32,"lodash.pluck":31,"sdp-jingle-json":28,traceablepeerconnection:29,util:8,"webrtc-adapter":30,wildemitter:4}],21:[function(e,t){function n(e){if(this.support=r.webAudio&&r.mediaStream,this.gain=1,this.support){var t=this.context=new r.AudioContext;this.microphone=t.createMediaStreamSource(e),this.gainFilter=t.createGain(),this.destination=t.createMediaStreamDestination(),this.outputStream=this.destination.stream,this.microphone.connect(this.gainFilter),this.gainFilter.connect(this.destination),e.addTrack(this.outputStream.getAudioTracks()[0]),e.removeTrack(e.getAudioTracks()[0])}this.stream=e}var r=e("webrtcsupport");n.prototype.setGain=function(e){this.support&&(this.gainFilter.gain.value=e,this.gain=e)},n.prototype.getGain=function(){return this.gain},n.prototype.off=function(){return this.setGain(0)},n.prototype.on=function(){this.setGain(1)},t.exports=n},{webrtcsupport:33}],26:[function(e,t,n){function r(){return"WebkitAppearance"in document.documentElement.style||window.console&&(console.firebug||console.exception&&console.table)||navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/)&&parseInt(RegExp.$1,10)>=31}function i(){var e=arguments,t=this.useColors;if(e[0]=(t?"%c":"")+this.namespace+(t?" %c":" ")+e[0]+(t?"%c ":" ")+"+"+n.humanize(this.diff),!t)return e;var r="color: "+this.color;e=[e[0],r,"color: inherit"].concat(Array.prototype.slice.call(e,1));var i=0,o=0;return e[0].replace(/%[a-z%]/g,function(e){"%%"!==e&&(i++,"%c"===e&&(o=i))}),e.splice(o,0,r),e}function o(){return"object"==typeof console&&console.log&&Function.prototype.apply.call(console.log,console,arguments)}function a(e){try{null==e?n.storage.removeItem("debug"):n.storage.debug=e}catch(t){}}function s(){var e;try{e=n.storage.debug}catch(t){}return e}function c(){try{return window.localStorage}catch(e){}}n=t.exports=e("./debug"),n.log=o,n.formatArgs=i,n.save=a,n.load=s,n.useColors=r,n.storage="undefined"!=typeof chrome&&"undefined"!=typeof chrome.storage?chrome.storage.local:c(),n.colors=["lightseagreen","forestgreen","goldenrod","dodgerblue","darkorchid","crimson"],n.formatters.j=function(e){return JSON.stringify(e)},n.enable(s())},{"./debug":34}],23:[function(e,t){function n(e,t){var n=e,t=t||r.location;null==e&&(e=t.protocol+"//"+t.host),"string"==typeof e&&("/"==e.charAt(0)&&(e="/"==e.charAt(1)?t.protocol+e:t.host+e),/^(https?|wss?):\/\//.test(e)||(o("protocol-less url %s",e),e="undefined"!=typeof t?t.protocol+"//"+e:"https://"+e),o("parse %s",e),n=i(e)),n.port||(/^(http|ws)$/.test(n.protocol)?n.port="80":/^(http|ws)s$/.test(n.protocol)&&(n.port="443")),n.path=n.path||"/";var a=-1!==n.host.indexOf(":"),s=a?"["+n.host+"]":n.host;return n.id=n.protocol+"://"+s+":"+n.port,n.href=n.protocol+"://"+s+(t&&t.port==n.port?"":":"+n.port),n}var r=self,i=e("parseuri"),o=e("debug")("socket.io-client:url");t.exports=n},{debug:26,parseuri:35}],24:[function(e,t){function n(e,t){return this instanceof n?(e&&"object"==typeof e&&(t=e,e=void 0),t=t||{},t.path=t.path||"/socket.io",this.nsps={},this.subs=[],this.opts=t,this.reconnection(t.reconnection!==!1),this.reconnectionAttempts(t.reconnectionAttempts||1/0),this.reconnectionDelay(t.reconnectionDelay||1e3),this.reconnectionDelayMax(t.reconnectionDelayMax||5e3),this.randomizationFactor(t.randomizationFactor||.5),this.backoff=new d({min:this.reconnectionDelay(),max:this.reconnectionDelayMax(),jitter:this.randomizationFactor()}),this.timeout(null==t.timeout?2e4:t.timeout),this.readyState="closed",this.uri=e,this.connecting=[],this.lastPing=null,this.encoding=!1,this.packetBuffer=[],this.encoder=new a.Encoder,this.decoder=new a.Decoder,this.autoConnect=t.autoConnect!==!1,this.autoConnect&&this.open(),void 0):new n(e,t)}var r=e("engine.io-client"),i=e("./socket"),o=e("component-emitter"),a=e("socket.io-parser"),s=e("./on"),c=e("component-bind"),u=e("debug")("socket.io-client:manager"),p=e("indexof"),d=e("backo2"),l=Object.prototype.hasOwnProperty;t.exports=n,n.prototype.emitAll=function(){this.emit.apply(this,arguments);for(var e in this.nsps)l.call(this.nsps,e)&&this.nsps[e].emit.apply(this.nsps[e],arguments)},n.prototype.updateSocketIds=function(){for(var e in this.nsps)l.call(this.nsps,e)&&(this.nsps[e].id=this.engine.id)},o(n.prototype),n.prototype.reconnection=function(e){return arguments.length?(this._reconnection=!!e,this):this._reconnection},n.prototype.reconnectionAttempts=function(e){return arguments.length?(this._reconnectionAttempts=e,this):this._reconnectionAttempts},n.prototype.reconnectionDelay=function(e){return arguments.length?(this._reconnectionDelay=e,this.backoff&&this.backoff.setMin(e),this):this._reconnectionDelay},n.prototype.randomizationFactor=function(e){return arguments.length?(this._randomizationFactor=e,this.backoff&&this.backoff.setJitter(e),this):this._randomizationFactor},n.prototype.reconnectionDelayMax=function(e){return arguments.length?(this._reconnectionDelayMax=e,this.backoff&&this.backoff.setMax(e),this):this._reconnectionDelayMax},n.prototype.timeout=function(e){return arguments.length?(this._timeout=e,this):this._timeout},n.prototype.maybeReconnectOnOpen=function(){!this.reconnecting&&this._reconnection&&0===this.backoff.attempts&&this.reconnect()},n.prototype.open=n.prototype.connect=function(e){if(u("readyState %s",this.readyState),~this.readyState.indexOf("open"))return this;u("opening %s",this.uri),this.engine=r(this.uri,this.opts);var t=this.engine,n=this;this.readyState="opening",this.skipReconnect=!1;var i=s(t,"open",function(){n.onopen(),e&&e()}),o=s(t,"error",function(t){if(u("connect_error"),n.cleanup(),n.readyState="closed",n.emitAll("connect_error",t),e){var r=new Error("Connection error");r.data=t,e(r)}else n.maybeReconnectOnOpen()});if(!1!==this._timeout){var a=this._timeout;u("connect attempt will timeout after %d",a);var c=setTimeout(function(){u("connect attempt timed out after %d",a),i.destroy(),t.close(),t.emit("error","timeout"),n.emitAll("connect_timeout",a)},a);this.subs.push({destroy:function(){clearTimeout(c)}})}return this.subs.push(i),this.subs.push(o),this},n.prototype.onopen=function(){u("open"),this.cleanup(),this.readyState="open",this.emit("open");var e=this.engine;this.subs.push(s(e,"data",c(this,"ondata"))),this.subs.push(s(e,"ping",c(this,"onping"))),this.subs.push(s(e,"pong",c(this,"onpong"))),this.subs.push(s(e,"error",c(this,"onerror"))),this.subs.push(s(e,"close",c(this,"onclose"))),this.subs.push(s(this.decoder,"decoded",c(this,"ondecoded")))},n.prototype.onping=function(){this.lastPing=new Date,this.emitAll("ping")},n.prototype.onpong=function(){this.emitAll("pong",new Date-this.lastPing)},n.prototype.ondata=function(e){this.decoder.add(e)},n.prototype.ondecoded=function(e){this.emit("packet",e)},n.prototype.onerror=function(e){u("error",e),this.emitAll("error",e)},n.prototype.socket=function(e){function t(){~p(r.connecting,n)||r.connecting.push(n)}var n=this.nsps[e];if(!n){n=new i(this,e),this.nsps[e]=n;var r=this;n.on("connecting",t),n.on("connect",function(){n.id=r.engine.id}),this.autoConnect&&t()}return n},n.prototype.destroy=function(e){var t=p(this.connecting,e);~t&&this.connecting.splice(t,1),this.connecting.length||this.close()},n.prototype.packet=function(e){u("writing packet %j",e);var t=this;t.encoding?t.packetBuffer.push(e):(t.encoding=!0,this.encoder.encode(e,function(n){for(var r=0;r<n.length;r++)t.engine.write(n[r],e.options);t.encoding=!1,t.processPacketQueue()}))},n.prototype.processPacketQueue=function(){if(this.packetBuffer.length>0&&!this.encoding){var e=this.packetBuffer.shift();this.packet(e)}},n.prototype.cleanup=function(){u("cleanup");for(var e;e=this.subs.shift();)e.destroy();this.packetBuffer=[],this.encoding=!1,this.lastPing=null,this.decoder.destroy()},n.prototype.close=n.prototype.disconnect=function(){u("disconnect"),this.skipReconnect=!0,this.reconnecting=!1,"opening"==this.readyState&&this.cleanup(),this.backoff.reset(),this.readyState="closed",this.engine&&this.engine.close()},n.prototype.onclose=function(e){u("onclose"),this.cleanup(),this.backoff.reset(),this.readyState="closed",this.emit("close",e),this._reconnection&&!this.skipReconnect&&this.reconnect()},n.prototype.reconnect=function(){if(this.reconnecting||this.skipReconnect)return this;var e=this;if(this.backoff.attempts>=this._reconnectionAttempts)u("reconnect failed"),this.backoff.reset(),this.emitAll("reconnect_failed"),this.reconnecting=!1;else{var t=this.backoff.duration();u("will wait %dms before reconnect attempt",t),this.reconnecting=!0;var n=setTimeout(function(){e.skipReconnect||(u("attempting reconnect"),e.emitAll("reconnect_attempt",e.backoff.attempts),e.emitAll("reconnecting",e.backoff.attempts),e.skipReconnect||e.open(function(t){t?(u("reconnect attempt error"),e.reconnecting=!1,e.reconnect(),e.emitAll("reconnect_error",t.data)):(u("reconnect success"),e.onreconnect())}))},t);this.subs.push({destroy:function(){clearTimeout(n)}})}},n.prototype.onreconnect=function(){var e=this.backoff.attempts;this.reconnecting=!1,this.backoff.reset(),this.updateSocketIds(),this.emitAll("reconnect",e)}},{"./on":22,"./socket":25,backo2:40,"component-bind":38,"component-emitter":36,debug:26,"engine.io-client":37,indexof:39,"socket.io-parser":27}],25:[function(e,t,n){function r(e,t){this.io=e,this.nsp=t,this.json=this,this.ids=0,this.acks={},this.receiveBuffer=[],this.sendBuffer=[],this.connected=!1,this.disconnected=!0,this.io.autoConnect&&this.open()}var i=e("socket.io-parser"),o=e("component-emitter"),a=e("to-array"),s=e("./on"),c=e("component-bind"),u=e("debug")("socket.io-client:socket"),p=e("has-binary");t.exports=n=r;var d={connect:1,connect_error:1,connect_timeout:1,connecting:1,disconnect:1,error:1,reconnect:1,reconnect_attempt:1,reconnect_failed:1,reconnect_error:1,reconnecting:1,ping:1,pong:1},l=o.prototype.emit;o(r.prototype),r.prototype.subEvents=function(){if(!this.subs){var e=this.io;this.subs=[s(e,"open",c(this,"onopen")),s(e,"packet",c(this,"onpacket")),s(e,"close",c(this,"onclose"))]}},r.prototype.open=r.prototype.connect=function(){return this.connected?this:(this.subEvents(),this.io.open(),"open"==this.io.readyState&&this.onopen(),this.emit("connecting"),this)},r.prototype.send=function(){var e=a(arguments);return e.unshift("message"),this.emit.apply(this,e),this},r.prototype.emit=function(e){if(d.hasOwnProperty(e))return l.apply(this,arguments),this;var t=a(arguments),n=i.EVENT;p(t)&&(n=i.BINARY_EVENT);var r={type:n,data:t};return r.options={},r.options.compress=!this.flags||!1!==this.flags.compress,"function"==typeof t[t.length-1]&&(u("emitting packet with ack id %d",this.ids),this.acks[this.ids]=t.pop(),r.id=this.ids++),this.connected?this.packet(r):this.sendBuffer.push(r),delete this.flags,this},r.prototype.packet=function(e){e.nsp=this.nsp,this.io.packet(e)},r.prototype.onopen=function(){u("transport is open - connecting"),"/"!=this.nsp&&this.packet({type:i.CONNECT})},r.prototype.onclose=function(e){u("close (%s)",e),this.connected=!1,this.disconnected=!0,delete this.id,this.emit("disconnect",e)},r.prototype.onpacket=function(e){if(e.nsp==this.nsp)switch(e.type){case i.CONNECT:this.onconnect();break;case i.EVENT:this.onevent(e);break;case i.BINARY_EVENT:this.onevent(e);break;case i.ACK:this.onack(e);break;case i.BINARY_ACK:this.onack(e);break;case i.DISCONNECT:this.ondisconnect();break;case i.ERROR:this.emit("error",e.data)}},r.prototype.onevent=function(e){var t=e.data||[];u("emitting event %j",t),null!=e.id&&(u("attaching ack callback to event"),t.push(this.ack(e.id))),this.connected?l.apply(this,t):this.receiveBuffer.push(t)},r.prototype.ack=function(e){var t=this,n=!1;return function(){if(!n){n=!0;var r=a(arguments);u("sending ack %j",r);var o=p(r)?i.BINARY_ACK:i.ACK;t.packet({type:o,id:e,data:r})}}},r.prototype.onack=function(e){var t=this.acks[e.id];"function"==typeof t?(u("calling ack %s with %j",e.id,e.data),t.apply(this,e.data),delete this.acks[e.id]):u("bad ack %s",e.id)},r.prototype.onconnect=function(){this.connected=!0,this.disconnected=!1,this.emit("connect"),this.emitBuffered()},r.prototype.emitBuffered=function(){var e;for(e=0;e<this.receiveBuffer.length;e++)l.apply(this,this.receiveBuffer[e]);for(this.receiveBuffer=[],e=0;e<this.sendBuffer.length;e++)this.packet(this.sendBuffer[e]);this.sendBuffer=[]},r.prototype.ondisconnect=function(){u("server disconnect (%s)",this.nsp),this.destroy(),this.onclose("io server disconnect")},r.prototype.destroy=function(){if(this.subs){for(var e=0;e<this.subs.length;e++)this.subs[e].destroy();this.subs=null}this.io.destroy(this)},r.prototype.close=r.prototype.disconnect=function(){return this.connected&&(u("performing disconnect (%s)",this.nsp),this.packet({type:i.DISCONNECT})),this.destroy(),this.connected&&this.onclose("io client disconnect"),this},r.prototype.compress=function(e){return this.flags=this.flags||{},this.flags.compress=e,this}},{"./on":22,"component-bind":38,"component-emitter":36,debug:26,"has-binary":42,"socket.io-parser":27,"to-array":41}],28:[function(e,t,n){var r=e("./lib/tosdp"),i=e("./lib/tojson");n.toIncomingSDPOffer=function(e){return r.toSessionSDP(e,{role:"responder",direction:"incoming"})},n.toOutgoingSDPOffer=function(e){return r.toSessionSDP(e,{role:"initiator",direction:"outgoing"})},n.toIncomingSDPAnswer=function(e){return r.toSessionSDP(e,{role:"initiator",direction:"incoming"})},n.toOutgoingSDPAnswer=function(e){return r.toSessionSDP(e,{role:"responder",direction:"outgoing"})},n.toIncomingMediaSDPOffer=function(e){return r.toMediaSDP(e,{role:"responder",direction:"incoming"})},n.toOutgoingMediaSDPOffer=function(e){return r.toMediaSDP(e,{role:"initiator",direction:"outgoing"})},n.toIncomingMediaSDPAnswer=function(e){return r.toMediaSDP(e,{role:"initiator",direction:"incoming"})},n.toOutgoingMediaSDPAnswer=function(e){return r.toMediaSDP(e,{role:"responder",direction:"outgoing"})},n.toCandidateSDP=r.toCandidateSDP,n.toMediaSDP=r.toMediaSDP,n.toSessionSDP=r.toSessionSDP,n.toIncomingJSONOffer=function(e,t){return i.toSessionJSON(e,{role:"responder",direction:"incoming",creators:t})},n.toOutgoingJSONOffer=function(e,t){return i.toSessionJSON(e,{role:"initiator",direction:"outgoing",creators:t})},n.toIncomingJSONAnswer=function(e,t){return i.toSessionJSON(e,{role:"initiator",direction:"incoming",creators:t})},n.toOutgoingJSONAnswer=function(e,t){return i.toSessionJSON(e,{role:"responder",direction:"outgoing",creators:t})},n.toIncomingMediaJSONOffer=function(e,t){return i.toMediaJSON(e,{role:"responder",direction:"incoming",creator:t})},n.toOutgoingMediaJSONOffer=function(e,t){return i.toMediaJSON(e,{role:"initiator",direction:"outgoing",creator:t})},n.toIncomingMediaJSONAnswer=function(e,t){return i.toMediaJSON(e,{role:"initiator",direction:"incoming",creator:t})},n.toOutgoingMediaJSONAnswer=function(e,t){return i.toMediaJSON(e,{role:"responder",direction:"outgoing",creator:t})},n.toCandidateJSON=i.toCandidateJSON,n.toMediaJSON=i.toMediaJSON,n.toSessionJSON=i.toSessionJSON},{"./lib/tojson":44,"./lib/tosdp":43}],33:[function(e,t){var n,r;window.mozRTCPeerConnection||navigator.mozGetUserMedia?(n="moz",r=parseInt(navigator.userAgent.match(/Firefox\/([0-9]+)\./)[1],10)):(window.webkitRTCPeerConnection||navigator.webkitGetUserMedia)&&(n="webkit",r=navigator.userAgent.match(/Chrom(e|ium)/)&&parseInt(navigator.userAgent.match(/Chrom(e|ium)\/([0-9]+)\./)[2],10));var i=window.mozRTCPeerConnection||window.webkitRTCPeerConnection,o=window.mozRTCIceCandidate||window.RTCIceCandidate,a=window.mozRTCSessionDescription||window.RTCSessionDescription,s=window.webkitMediaStream||window.MediaStream,c="https:"===window.location.protocol&&("webkit"===n&&r>=26||"moz"===n&&r>=33),u=window.AudioContext||window.webkitAudioContext,p=document.createElement("video"),d=p&&p.canPlayType&&"probably"===p.canPlayType('video/webm; codecs="vp8", vorbis'),l=navigator.getUserMedia||navigator.webkitGetUserMedia||navigator.msGetUserMedia||navigator.mozGetUserMedia;t.exports={prefix:n,browserVersion:r,support:!!i&&d&&!!l,supportRTCPeerConnection:!!i,supportVp8:d,supportGetUserMedia:!!l,supportDataChannel:!!(i&&i.prototype&&i.prototype.createDataChannel),supportWebAudio:!(!u||!u.prototype.createMediaStreamSource),supportMediaStream:!(!s||!s.prototype.removeTrack),supportScreenSharing:!!c,dataChannel:!!(i&&i.prototype&&i.prototype.createDataChannel),webAudio:!(!u||!u.prototype.createMediaStreamSource),mediaStream:!(!s||!s.prototype.removeTrack),screenSharing:!!c,AudioContext:u,PeerConnection:i,SessionDescription:a,IceCandidate:o,MediaStream:s,getUserMedia:l}},{}],19:[function(e,t){e("webrtc-adapter"),t.exports=function(e,t){var n,r=2===arguments.length,i={video:!0,audio:!0},o="PermissionDeniedError",a="PERMISSION_DENIED",s="ConstraintNotSatisfiedError";return r||(t=e,e=i),"undefined"!=typeof navigator&&navigator.getUserMedia?e.audio||e.video?(localStorage&&"true"===localStorage.useFirefoxFakeDevice&&(e.fake=!0),navigator.mediaDevices.getUserMedia(e).then(function(e){t(null,e)}).catch(function(e){var n;"string"==typeof e?(n=new Error("MediaStreamError"),n.name=e===o||e===a?o:s):(n=e,n.name||(e.name=n[o]?o:s)),t(n)}),void 0):(n=new Error("MediaStreamError"),n.name="NoMediaRequestedError",setTimeout(function(){t(n)},0)):(n=new Error("MediaStreamError"),n.name="NotSupportedError",setTimeout(function(){t(n)},0))}},{"webrtc-adapter":30}],18:[function(e,t){function n(e,t){var n=-1/0;e.getFloatFrequencyData(t);for(var r=4,i=t.length;i>r;r++)t[r]>n&&t[r]<0&&(n=t[r]);return n}var r=e("wildemitter"),i=window.AudioContext||window.webkitAudioContext,o=null;t.exports=function(e,t){var a=new r;if(!i)return a;var t=t||{},s=t.smoothing||.1,c=t.interval||50,u=t.threshold,p=t.play,d=t.history||10,l=!0;o||(o=new i);var f,h,m;m=o.createAnalyser(),m.fftSize=512,m.smoothingTimeConstant=s,h=new Float32Array(m.fftSize),e.jquery&&(e=e[0]),e instanceof HTMLAudioElement||e instanceof HTMLVideoElement?(f=o.createMediaElementSource(e),"undefined"==typeof p&&(p=!0),u=u||-50):(f=o.createMediaStreamSource(e),u=u||-50),f.connect(m),p&&m.connect(o.destination),a.speaking=!1,a.setThreshold=function(e){u=e},a.setInterval=function(e){c=e},a.stop=function(){l=!1,a.emit("volume_change",-100,u),a.speaking&&(a.speaking=!1,a.emit("stopped_speaking"))},a.speakingHistory=[];for(var g=0;d>g;g++)a.speakingHistory.push(0);var v=function(){setTimeout(function(){if(l){var e=n(m,h);a.emit("volume_change",e,u);var t=0;if(e>u&&!a.speaking){for(var r=a.speakingHistory.length-3;r<a.speakingHistory.length;r++)t+=a.speakingHistory[r];t>=2&&(a.speaking=!0,a.emit("speaking"))}else if(u>e&&a.speaking){for(var r=0;r<a.speakingHistory.length;r++)t+=a.speakingHistory[r];0==t&&(a.speaking=!1,a.emit("stopped_speaking"))}a.speakingHistory.shift(),a.speakingHistory.push(0+(e>u)),v()}},c)};return v(),a}},{wildemitter:4}],20:[function(e,t){var n=e("getusermedia"),r={};t.exports=function(e,t){var i,o=2===arguments.length,a=o?t:e;if("undefined"==typeof window||"http:"===window.location.protocol)return i=new Error("NavigatorUserMediaError"),i.name="HTTPS_REQUIRED",a(i);if(window.navigator.userAgent.match("Chrome")){var s=parseInt(window.navigator.userAgent.match(/Chrome\/(.*) /)[1],10),c=33,u=!window.chrome.webstore;if(window.navigator.userAgent.match("Linux")&&(c=35),sessionStorage.getScreenMediaJSExtensionId)chrome.runtime.sendMessage(sessionStorage.getScreenMediaJSExtensionId,{type:"getScreen",id:1},null,function(t){if(t&&""!==t.sourceId)e=o&&e||{audio:!1,video:{mandatory:{chromeMediaSource:"desktop",maxWidth:window.screen.width,maxHeight:window.screen.height,maxFrameRate:3},optional:[{googLeakyBucket:!0},{googTemporalLayeredScreencast:!0}]}},e.video.mandatory.chromeMediaSourceId=t.sourceId,n(e,a);else{var r=new Error("NavigatorUserMediaError");r.name="PERMISSION_DENIED",a(r)}});else if(window.cefGetScreenMedia)window.cefGetScreenMedia(function(t){if(t)e=o&&e||{audio:!1,video:{mandatory:{chromeMediaSource:"desktop",maxWidth:window.screen.width,maxHeight:window.screen.height,maxFrameRate:3},optional:[{googLeakyBucket:!0},{googTemporalLayeredScreencast:!0}]}},e.video.mandatory.chromeMediaSourceId=t,n(e,a);else{var r=new Error("cefGetScreenMediaError");r.name="CEF_GETSCREENMEDIA_CANCELED",a(r)}});else if(u||s>=26&&c>=s)e=o&&e||{video:{mandatory:{googLeakyBucket:!0,maxWidth:window.screen.width,maxHeight:window.screen.height,maxFrameRate:3,chromeMediaSource:"screen"}}},n(e,a);else{var p=window.setTimeout(function(){return i=new Error("NavigatorUserMediaError"),i.name="EXTENSION_UNAVAILABLE",a(i)},1e3);r[p]=[a,o?e:null],window.postMessage({type:"getScreen",id:p},"*")}}else if(window.navigator.userAgent.match("Firefox")){var d=parseInt(window.navigator.userAgent.match(/Firefox\/(.*)/)[1],10);d>=33?(e=o&&e||{video:{mozMediaSource:"screen",mediaSource:"screen"}},n(e,function(e,t){if(a(e,t),!e)var n=t.currentTime,r=window.setInterval(function(){t||window.clearInterval(r),t.currentTime==n&&(window.clearInterval(r),t.onended&&t.onended()),n=t.currentTime},500)})):(i=new Error("NavigatorUserMediaError"),i.name="EXTENSION_UNAVAILABLE")}},window.addEventListener("message",function(e){if(e.origin==window.location.origin)if("gotScreen"==e.data.type&&r[e.data.id]){var t=r[e.data.id],i=t[1],o=t[0];if(delete r[e.data.id],""===e.data.sourceId){var a=new Error("NavigatorUserMediaError");a.name="PERMISSION_DENIED",o(a)}else i=i||{audio:!1,video:{mandatory:{chromeMediaSource:"desktop",maxWidth:window.screen.width,maxHeight:window.screen.height,maxFrameRate:3},optional:[{googLeakyBucket:!0},{googTemporalLayeredScreencast:!0}]}},i.video.mandatory.chromeMediaSourceId=e.data.sourceId,n(i,o)}else"getScreenPending"==e.data.type&&window.clearTimeout(e.data.id)})},{getusermedia:19}],36:[function(e,t){function n(e){return e?r(e):void 0}function r(e){for(var t in n.prototype)e[t]=n.prototype[t];return e}t.exports=n,n.prototype.on=n.prototype.addEventListener=function(e,t){return this._callbacks=this._callbacks||{},(this._callbacks["$"+e]=this._callbacks["$"+e]||[]).push(t),this},n.prototype.once=function(e,t){function n(){this.off(e,n),t.apply(this,arguments)}return n.fn=t,this.on(e,n),this},n.prototype.off=n.prototype.removeListener=n.prototype.removeAllListeners=n.prototype.removeEventListener=function(e,t){if(this._callbacks=this._callbacks||{},0==arguments.length)return this._callbacks={},this;
var n=this._callbacks["$"+e];if(!n)return this;if(1==arguments.length)return delete this._callbacks["$"+e],this;for(var r,i=0;i<n.length;i++)if(r=n[i],r===t||r.fn===t){n.splice(i,1);break}return this},n.prototype.emit=function(e){this._callbacks=this._callbacks||{};var t=[].slice.call(arguments,1),n=this._callbacks["$"+e];if(n){n=n.slice(0);for(var r=0,i=n.length;i>r;++r)n[r].apply(this,t)}return this},n.prototype.listeners=function(e){return this._callbacks=this._callbacks||{},this._callbacks["$"+e]||[]},n.prototype.hasListeners=function(e){return!!this.listeners(e).length}},{}],45:[function(e,t){function n(e){return r.Buffer&&r.Buffer.isBuffer(e)||r.ArrayBuffer&&e instanceof ArrayBuffer}var r=self;t.exports=n},{}],35:[function(e,t){var n=/^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/,r=["source","protocol","authority","userInfo","user","password","host","port","relative","path","directory","file","query","anchor"];t.exports=function(e){var t=e,i=e.indexOf("["),o=e.indexOf("]");-1!=i&&-1!=o&&(e=e.substring(0,i)+e.substring(i,o).replace(/:/g,";")+e.substring(o,e.length));for(var a=n.exec(e||""),s={},c=14;c--;)s[r[c]]=a[c]||"";return-1!=i&&-1!=o&&(s.source=t,s.host=s.host.substring(1,s.host.length-1).replace(/;/g,":"),s.authority=s.authority.replace("[","").replace("]","").replace(/;/g,":"),s.ipv6uri=!0),s}},{}],30:[function(e,t){"use strict";!function(){var n=e("./utils").log,r=e("./utils").browserDetails;t.exports.browserDetails=r,t.exports.extractVersion=e("./utils").extractVersion,t.exports.disableLog=e("./utils").disableLog,r.version<r.minVersion&&n("Browser: "+r.browser+" Version: "+r.version+" <"+" minimum supported version: "+r.minVersion+"\n some things might not work!");var i=e("./chrome/chrome_shim")||null,o=e("./edge/edge_shim")||null,a=e("./firefox/firefox_shim")||null;switch(r.browser){case"chrome":if(!i||!i.shimPeerConnection)return n("Chrome shim is not included in this adapter release."),void 0;n("adapter.js shimming chrome!"),t.exports.browserShim=i,i.shimGetUserMedia(),i.shimSourceObject(),i.shimPeerConnection(),i.shimOnTrack();break;case"edge":if(!o||!o.shimPeerConnection)return n("MS edge shim is not included in this adapter release."),void 0;n("adapter.js shimming edge!"),t.exports.browserShim=o,o.shimPeerConnection();break;case"firefox":if(!a||!a.shimPeerConnection)return n("Firefox shim is not included in this adapter release."),void 0;n("adapter.js shimming firefox!"),t.exports.browserShim=a,a.shimGetUserMedia(),a.shimSourceObject(),a.shimPeerConnection(),a.shimOnTrack();break;default:n("Unsupported browser!")}}()},{"./chrome/chrome_shim":47,"./edge/edge_shim":48,"./firefox/firefox_shim":49,"./utils":46}],39:[function(e,t){var n=[].indexOf;t.exports=function(e,t){if(n)return e.indexOf(t);for(var r=0;r<e.length;++r)if(e[r]===t)return r;return-1}},{}],38:[function(e,t){var n=[].slice;t.exports=function(e,t){if("string"==typeof t&&(t=e[t]),"function"!=typeof t)throw new Error("bind() requires a function");var r=n.call(arguments,2);return function(){return t.apply(e,r.concat(n.call(arguments)))}}},{}],40:[function(e,t){function n(e){e=e||{},this.ms=e.min||100,this.max=e.max||1e4,this.factor=e.factor||2,this.jitter=e.jitter>0&&e.jitter<=1?e.jitter:0,this.attempts=0}t.exports=n,n.prototype.duration=function(){var e=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var t=Math.random(),n=Math.floor(t*this.jitter*e);e=0==(1&Math.floor(10*t))?e-n:e+n}return 0|Math.min(e,this.max)},n.prototype.reset=function(){this.attempts=0},n.prototype.setMin=function(e){this.ms=e},n.prototype.setMax=function(e){this.max=e},n.prototype.setJitter=function(e){this.jitter=e}},{}],41:[function(e,t){function n(e,t){var n=[];t=t||0;for(var r=t||0;r<e.length;r++)n[r-t]=e[r];return n}t.exports=n},{}],46:[function(e,t){"use strict";var n=!1,r={disableLog:function(e){return"boolean"!=typeof e?new Error("Argument type: "+typeof e+". Please use a boolean."):(n=e,e?"adapter.js logging disabled":"adapter.js logging enabled")},log:function(){if("object"==typeof window){if(n)return;console.log.apply(console,arguments)}},extractVersion:function(e,t,n){var r=e.match(t);return r&&r.length>=n&&parseInt(r[n],10)},detectBrowser:function(){var e={};return e.browser=null,e.version=null,e.minVersion=null,"undefined"!=typeof window&&window.navigator?navigator.mozGetUserMedia?(e.browser="firefox",e.version=this.extractVersion(navigator.userAgent,/Firefox\/([0-9]+)\./,1),e.minVersion=31,e):navigator.webkitGetUserMedia&&window.webkitRTCPeerConnection?(e.browser="chrome",e.version=this.extractVersion(navigator.userAgent,/Chrom(e|ium)\/([0-9]+)\./,2),e.minVersion=38,e):navigator.mediaDevices&&navigator.userAgent.match(/Edge\/(\d+).(\d+)$/)?(e.browser="edge",e.version=this.extractVersion(navigator.userAgent,/Edge\/(\d+).(\d+)$/,2),e.minVersion=10547,e):(e.browser="Not a supported browser.",e):(e.browser="Not a supported browser.",e)}};t.exports={log:r.log,disableLog:r.disableLog,browserDetails:r.detectBrowser(),extractVersion:r.extractVersion}},{}],50:[function(e,t){function n(e){return e?r(e):void 0}function r(e){for(var t in n.prototype)e[t]=n.prototype[t];return e}t.exports=n,n.prototype.on=n.prototype.addEventListener=function(e,t){return this._callbacks=this._callbacks||{},(this._callbacks[e]=this._callbacks[e]||[]).push(t),this},n.prototype.once=function(e,t){function n(){r.off(e,n),t.apply(this,arguments)}var r=this;return this._callbacks=this._callbacks||{},n.fn=t,this.on(e,n),this},n.prototype.off=n.prototype.removeListener=n.prototype.removeAllListeners=n.prototype.removeEventListener=function(e,t){if(this._callbacks=this._callbacks||{},0==arguments.length)return this._callbacks={},this;var n=this._callbacks[e];if(!n)return this;if(1==arguments.length)return delete this._callbacks[e],this;for(var r,i=0;i<n.length;i++)if(r=n[i],r===t||r.fn===t){n.splice(i,1);break}return this},n.prototype.emit=function(e){this._callbacks=this._callbacks||{};var t=[].slice.call(arguments,1),n=this._callbacks[e];if(n){n=n.slice(0);for(var r=0,i=n.length;i>r;++r)n[r].apply(this,t)}return this},n.prototype.listeners=function(e){return this._callbacks=this._callbacks||{},this._callbacks[e]||[]},n.prototype.hasListeners=function(e){return!!this.listeners(e).length}},{}],27:[function(e,t,n){function r(){}function i(e){var t="",r=!1;return t+=e.type,(n.BINARY_EVENT==e.type||n.BINARY_ACK==e.type)&&(t+=e.attachments,t+="-"),e.nsp&&"/"!=e.nsp&&(r=!0,t+=e.nsp),null!=e.id&&(r&&(t+=",",r=!1),t+=e.id),null!=e.data&&(r&&(t+=","),t+=d.stringify(e.data)),p("encoded %j as %s",e,t),t}function o(e,t){function n(e){var n=f.deconstructPacket(e),r=i(n.packet),o=n.buffers;o.unshift(r),t(o)}f.removeBlobs(e,n)}function a(){this.reconstructor=null}function s(e){var t={},r=0;if(t.type=Number(e.charAt(0)),null==n.types[t.type])return u();if(n.BINARY_EVENT==t.type||n.BINARY_ACK==t.type){for(var i="";"-"!=e.charAt(++r)&&(i+=e.charAt(r),r!=e.length););if(i!=Number(i)||"-"!=e.charAt(r))throw new Error("Illegal attachments");t.attachments=Number(i)}if("/"==e.charAt(r+1))for(t.nsp="";++r;){var o=e.charAt(r);if(","==o)break;if(t.nsp+=o,r==e.length)break}else t.nsp="/";var a=e.charAt(r+1);if(""!==a&&Number(a)==a){for(t.id="";++r;){var o=e.charAt(r);if(null==o||Number(o)!=o){--r;break}if(t.id+=e.charAt(r),r==e.length)break}t.id=Number(t.id)}if(e.charAt(++r))try{t.data=d.parse(e.substr(r))}catch(s){return u()}return p("decoded %s as %j",e,t),t}function c(e){this.reconPack=e,this.buffers=[]}function u(){return{type:n.ERROR,data:"parser error"}}var p=e("debug")("socket.io-parser"),d=e("json3");e("isarray");var l=e("component-emitter"),f=e("./binary"),h=e("./is-buffer");n.protocol=4,n.types=["CONNECT","DISCONNECT","EVENT","ACK","ERROR","BINARY_EVENT","BINARY_ACK"],n.CONNECT=0,n.DISCONNECT=1,n.EVENT=2,n.ACK=3,n.ERROR=4,n.BINARY_EVENT=5,n.BINARY_ACK=6,n.Encoder=r,n.Decoder=a,r.prototype.encode=function(e,t){if(p("encoding packet %j",e),n.BINARY_EVENT==e.type||n.BINARY_ACK==e.type)o(e,t);else{var r=i(e);t([r])}},l(a.prototype),a.prototype.add=function(e){var t;if("string"==typeof e)t=s(e),n.BINARY_EVENT==t.type||n.BINARY_ACK==t.type?(this.reconstructor=new c(t),0===this.reconstructor.reconPack.attachments&&this.emit("decoded",t)):this.emit("decoded",t);else{if(!h(e)&&!e.base64)throw new Error("Unknown type: "+e);if(!this.reconstructor)throw new Error("got binary data when not reconstructing a packet");t=this.reconstructor.takeBinaryData(e),t&&(this.reconstructor=null,this.emit("decoded",t))}},a.prototype.destroy=function(){this.reconstructor&&this.reconstructor.finishedReconstruction()},c.prototype.takeBinaryData=function(e){if(this.buffers.push(e),this.buffers.length==this.reconPack.attachments){var t=f.reconstructPacket(this.reconPack,this.buffers);return this.finishedReconstruction(),t}return null},c.prototype.finishedReconstruction=function(){this.reconPack=null,this.buffers=[]}},{"./binary":51,"./is-buffer":45,"component-emitter":50,debug:26,isarray:52,json3:53}],43:[function(e,t,n){var r=e("./senders");n.toSessionSDP=function(e,t){t.role||"initiator",t.direction||"outgoing";var r=t.sid||e.sid||Date.now(),i=t.time||Date.now(),o=["v=0","o=- "+r+" "+i+" IN IP4 0.0.0.0","s=-","t=0 0"],a=e.contents||[],s=!1;a.forEach(function(e){e.description.sources&&e.description.sources.length&&(s=!0)}),s&&o.push("a=msid-semantic: WMS *");var c=e.groups||[];return c.forEach(function(e){o.push("a=group:"+e.semantics+" "+e.contents.join(" "))}),a.forEach(function(e){o.push(n.toMediaSDP(e,t))}),o.join("\r\n")+"\r\n"},n.toMediaSDP=function(e,t){var i=[],o=t.role||"initiator",a=t.direction||"outgoing",s=e.description,c=e.transport,u=s.payloads||[],p=c&&c.fingerprints||[],d=[];if("datachannel"==s.descType?(d.push("application"),d.push("1"),d.push("DTLS/SCTP"),c.sctp&&c.sctp.forEach(function(e){d.push(e.number)})):(d.push(s.media),d.push("1"),p.length>0?d.push("UDP/TLS/RTP/SAVPF"):s.encryption&&s.encryption.length>0?d.push("RTP/SAVPF"):d.push("RTP/AVPF"),u.forEach(function(e){d.push(e.id)})),i.push("m="+d.join(" ")),i.push("c=IN IP4 0.0.0.0"),s.bandwidth&&s.bandwidth.type&&s.bandwidth.bandwidth&&i.push("b="+s.bandwidth.type+":"+s.bandwidth.bandwidth),"rtp"==s.descType&&i.push("a=rtcp:1 IN IP4 0.0.0.0"),c){c.ufrag&&i.push("a=ice-ufrag:"+c.ufrag),c.pwd&&i.push("a=ice-pwd:"+c.pwd);var l=!1;p.forEach(function(e){i.push("a=fingerprint:"+e.hash+" "+e.value),e.setup&&!l&&i.push("a=setup:"+e.setup)}),c.sctp&&c.sctp.forEach(function(e){i.push("a=sctpmap:"+e.number+" "+e.protocol+" "+e.streams)})}"rtp"==s.descType&&i.push("a="+(r[o][a][e.senders]||"sendrecv")),i.push("a=mid:"+e.name),s.sources&&s.sources.length&&(s.sources[0].parameters||[]).forEach(function(e){"msid"===e.key&&i.push("a=msid:"+e.value)}),s.mux&&i.push("a=rtcp-mux");var f=s.encryption||[];f.forEach(function(e){i.push("a=crypto:"+e.tag+" "+e.cipherSuite+" "+e.keyParams+(e.sessionParams?" "+e.sessionParams:""))}),s.googConferenceFlag&&i.push("a=x-google-flag:conference"),u.forEach(function(e){var t="a=rtpmap:"+e.id+" "+e.name+"/"+e.clockrate;if(e.channels&&"1"!=e.channels&&(t+="/"+e.channels),i.push(t),e.parameters&&e.parameters.length){var n=["a=fmtp:"+e.id],r=[];e.parameters.forEach(function(e){r.push((e.key?e.key+"=":"")+e.value)}),n.push(r.join(";")),i.push(n.join(" "))}e.feedback&&e.feedback.forEach(function(t){"trr-int"===t.type?i.push("a=rtcp-fb:"+e.id+" trr-int "+(t.value?t.value:"0")):i.push("a=rtcp-fb:"+e.id+" "+t.type+(t.subtype?" "+t.subtype:""))})}),s.feedback&&s.feedback.forEach(function(e){"trr-int"===e.type?i.push("a=rtcp-fb:* trr-int "+(e.value?e.value:"0")):i.push("a=rtcp-fb:* "+e.type+(e.subtype?" "+e.subtype:""))});var h=s.headerExtensions||[];h.forEach(function(e){i.push("a=extmap:"+e.id+(e.senders?"/"+r[o][a][e.senders]:"")+" "+e.uri)});var m=s.sourceGroups||[];m.forEach(function(e){i.push("a=ssrc-group:"+e.semantics+" "+e.sources.join(" "))});var g=s.sources||[];g.forEach(function(e){for(var t=0;t<e.parameters.length;t++){var n=e.parameters[t];i.push("a=ssrc:"+(e.ssrc||s.ssrc)+" "+n.key+(n.value?":"+n.value:""))}});var v=c.candidates||[];return v.forEach(function(e){i.push(n.toCandidateSDP(e))}),i.join("\r\n")},n.toCandidateSDP=function(e){var t=[];t.push(e.foundation),t.push(e.component),t.push(e.protocol.toUpperCase()),t.push(e.priority),t.push(e.ip),t.push(e.port);var n=e.type;return t.push("typ"),t.push(n),("srflx"===n||"prflx"===n||"relay"===n)&&e.relAddr&&e.relPort&&(t.push("raddr"),t.push(e.relAddr),t.push("rport"),t.push(e.relPort)),e.tcpType&&"TCP"==e.protocol.toUpperCase()&&(t.push("tcptype"),t.push(e.tcpType)),t.push("generation"),t.push(e.generation||"0"),"a=candidate:"+t.join(" ")}},{"./senders":54}],44:[function(e,t,n){var r=e("./senders"),i=e("./parsers"),o=Math.random();n._setIdCounter=function(e){o=e},n.toSessionJSON=function(e,t){var r,o=t.creators||[],a=t.role||"initiator",s=t.direction||"outgoing",c=e.split("\r\nm=");for(r=1;r<c.length;r++)c[r]="m="+c[r],r!==c.length-1&&(c[r]+="\r\n");var u=c.shift()+"\r\n",p=i.lines(u),d={},l=[];for(r=0;r<c.length;r++)l.push(n.toMediaJSON(c[r],u,{role:a,direction:s,creator:o[r]||"initiator"}));d.contents=l;var f=i.findLines("a=group:",p);return f.length&&(d.groups=i.groups(f)),d},n.toMediaJSON=function(e,t,o){var a=o.creator||"initiator",s=o.role||"initiator",c=o.direction||"outgoing",u=i.lines(e),p=i.lines(t),d=i.mline(u[0]),l={creator:a,name:d.media,description:{descType:"rtp",media:d.media,payloads:[],encryption:[],feedback:[],headerExtensions:[]},transport:{transType:"iceUdp",candidates:[],fingerprints:[]}};"application"==d.media&&(l.description={descType:"datachannel"},l.transport.sctp=[]);var f=l.description,h=l.transport,m=i.findLine("a=mid:",u);if(m&&(l.name=m.substr(6)),i.findLine("a=sendrecv",u,p)?l.senders="both":i.findLine("a=sendonly",u,p)?l.senders=r[s][c].sendonly:i.findLine("a=recvonly",u,p)?l.senders=r[s][c].recvonly:i.findLine("a=inactive",u,p)&&(l.senders="none"),"rtp"==f.descType){var g=i.findLine("b=",u);g&&(f.bandwidth=i.bandwidth(g));var v=i.findLine("a=ssrc:",u);v&&(f.ssrc=v.substr(7).split(" ")[0]);var y=i.findLines("a=rtpmap:",u);y.forEach(function(e){var t=i.rtpmap(e);t.parameters=[],t.feedback=[];var n=i.findLines("a=fmtp:"+t.id,u);n.forEach(function(e){t.parameters=i.fmtp(e)});var r=i.findLines("a=rtcp-fb:"+t.id,u);r.forEach(function(e){t.feedback.push(i.rtcpfb(e))}),f.payloads.push(t)});var b=i.findLines("a=crypto:",u,p);b.forEach(function(e){f.encryption.push(i.crypto(e))}),i.findLine("a=rtcp-mux",u)&&(f.mux=!0);var w=i.findLines("a=rtcp-fb:*",u);w.forEach(function(e){f.feedback.push(i.rtcpfb(e))});var S=i.findLines("a=extmap:",u);S.forEach(function(e){var t=i.extmap(e);t.senders=r[s][c][t.senders],f.headerExtensions.push(t)});var C=i.findLines("a=ssrc-group:",u);f.sourceGroups=i.sourceGroups(C||[]);var k=i.findLines("a=ssrc:",u),T=f.sources=i.sources(k||[]),R=i.findLine("a=msid:",u);if(R){var x=i.msid(R);["msid","mslabel","label"].forEach(function(e){for(var t=0;t<T.length;t++){for(var n=!1,r=0;r<T[t].parameters.length;r++)T[t].parameters[r].key===e&&(n=!0);n||T[t].parameters.push({key:e,value:x[e]})}})}i.findLine("a=x-google-flag:conference",u,p)&&(f.googConferenceFlag=!0)}var E=i.findLines("a=fingerprint:",u,p),P=i.findLine("a=setup:",u,p);E.forEach(function(e){var t=i.fingerprint(e);P&&(t.setup=P.substr(8)),h.fingerprints.push(t)});var O=i.findLine("a=ice-ufrag:",u,p),_=i.findLine("a=ice-pwd:",u,p);if(O&&_){h.ufrag=O.substr(12),h.pwd=_.substr(10),h.candidates=[];var D=i.findLines("a=candidate:",u,p);D.forEach(function(e){h.candidates.push(n.toCandidateJSON(e))})}if("datachannel"==f.descType){var j=i.findLines("a=sctpmap:",u);j.forEach(function(e){var t=i.sctpmap(e);h.sctp.push(t)})}return l},n.toCandidateJSON=function(e){var t=i.candidate(e.split("\r\n")[0]);return t.id=(o++).toString(36).substr(0,12),t}},{"./parsers":55,"./senders":54}],29:[function(e,t){function n(e){return{type:e.type,sdp:e.sdp}}function r(e){var t={label:e.id};return e.getAudioTracks().length&&(t.audio=e.getAudioTracks().map(function(e){return e.id})),e.getVideoTracks().length&&(t.video=e.getVideoTracks().map(function(e){return e.id})),t}function i(e,t){var n=this;a.call(this),this.peerconnection=new window.RTCPeerConnection(e,t),this.trace=function(e,t){n.emit("PeerConnectionTrace",{time:new 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n={foundation:t[0],component:t[1],protocol:t[2].toLowerCase(),priority:t[3],ip:t[4],port:t[5],type:t[7],generation:"0"},r=8;r<t.length;r+=2)"raddr"===t[r]?n.relAddr=t[r+1]:"rport"===t[r]?n.relPort=t[r+1]:"generation"===t[r]?n.generation=t[r+1]:"tcptype"===t[r]&&(n.tcpType=t[r+1]);return n.network="1",n},n.sourceGroups=function(e){for(var t=[],n=0;n<e.length;n++){var r=e[n].substr(13).split(" ");t.push({semantics:r.shift(),sources:r})}return t},n.sources=function(e){for(var t=[],n={},r=0;r<e.length;r++){var i=e[r].substr(7).split(" "),o=i.shift();if(!n[o]){var a={ssrc:o,parameters:[]};t.push(a),n[o]=a}i=i.join(" ").split(":");var s=i.shift(),c=i.join(":")||null;n[o].parameters.push({key:s,value:c})}return t},n.groups=function(e){for(var t,n=[],r=0;r<e.length;r++)t=e[r].substr(8).split(" "),n.push({semantics:t.shift(),contents:t});return n},n.bandwidth=function(e){var t=e.substr(2).split(":"),n={};return n.type=t.shift(),n.bandwidth=t.shift(),n},n.msid=function(e){var t=e.substr(7),n=t.split(" ");return{msid:t,mslabel:n[0],label:n[1]}}},{}],49:[function(e,t){"use strict";var n=e("../utils").log,r=e("../utils").browserDetails,i={shimOnTrack:function(){"object"!=typeof window||!window.RTCPeerConnection||"ontrack"in window.RTCPeerConnection.prototype||Object.defineProperty(window.RTCPeerConnection.prototype,"ontrack",{get:function(){return this._ontrack},set:function(e){this._ontrack&&(this.removeEventListener("track",this._ontrack),this.removeEventListener("addstream",this._ontrackpoly)),this.addEventListener("track",this._ontrack=e),this.addEventListener("addstream",this._ontrackpoly=function(e){e.stream.getTracks().forEach(function(t){var n=new Event("track");n.track=t,n.receiver={track:t},n.streams=[e.stream],this.dispatchEvent(n)}.bind(this))}.bind(this))}})},shimSourceObject:function(){"object"==typeof window&&(!window.HTMLMediaElement||"srcObject"in window.HTMLMediaElement.prototype||Object.defineProperty(window.HTMLMediaElement.prototype,"srcObject",{get:function(){return this.mozSrcObject},set:function(e){this.mozSrcObject=e}}))},shimPeerConnection:function(){window.RTCPeerConnection||(window.RTCPeerConnection=function(e,t){if(r.version<38&&e&&e.iceServers){for(var n=[],i=0;i<e.iceServers.length;i++){var o=e.iceServers[i];if(o.hasOwnProperty("urls"))for(var a=0;a<o.urls.length;a++){var s={url:o.urls[a]};0===o.urls[a].indexOf("turn")&&(s.username=o.username,s.credential=o.credential),n.push(s)}else n.push(e.iceServers[i])}e.iceServers=n}return new mozRTCPeerConnection(e,t)},window.RTCPeerConnection.prototype=mozRTCPeerConnection.prototype,mozRTCPeerConnection.generateCertificate&&Object.defineProperty(window.RTCPeerConnection,"generateCertificate",{get:function(){return 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"+JSON.stringify(e))),navigator.mozGetUserMedia(e,t,i)};navigator.getUserMedia=e;var t=function(e){return new Promise(function(t,n){navigator.getUserMedia(e,t,n)})};if(navigator.mediaDevices||(navigator.mediaDevices={getUserMedia:t,addEventListener:function(){},removeEventListener:function(){}}),navigator.mediaDevices.enumerateDevices=navigator.mediaDevices.enumerateDevices||function(){return new Promise(function(e){var t=[{kind:"audioinput",deviceId:"default",label:"",groupId:""},{kind:"videoinput",deviceId:"default",label:"",groupId:""}];e(t)})},r.version<41){var i=navigator.mediaDevices.enumerateDevices.bind(navigator.mediaDevices);navigator.mediaDevices.enumerateDevices=function(){return i().then(void 0,function(e){if("NotFoundError"===e.name)return[];throw e})}}},attachMediaStream:function(e,t){n("DEPRECATED, attachMediaStream will soon be removed."),e.srcObject=t},reattachMediaStream:function(e,t){n("DEPRECATED, reattachMediaStream will soon be removed."),e.srcObject=t.srcObject}};t.exports={shimOnTrack:i.shimOnTrack,shimSourceObject:i.shimSourceObject,shimPeerConnection:i.shimPeerConnection,shimGetUserMedia:i.shimGetUserMedia,attachMediaStream:i.attachMediaStream,reattachMediaStream:i.reattachMediaStream}},{"../utils":46}],48:[function(e,t){"use strict";var n=e("./edge_sdp"),r=e("../utils").log;e("../utils").browserDetails;var i={shimPeerConnection:function(){window.RTCIceGatherer&&(window.RTCIceCandidate||(window.RTCIceCandidate=function(e){return e}),window.RTCSessionDescription||(window.RTCSessionDescription=function(e){return e})),window.RTCPeerConnection=function(e){var t=this;if(this.onicecandidate=null,this.onaddstream=null,this.onremovestream=null,this.onsignalingstatechange=null,this.oniceconnectionstatechange=null,this.onnegotiationneeded=null,this.ondatachannel=null,this.localStreams=[],this.remoteStreams=[],this.getLocalStreams=function(){return t.localStreams},this.getRemoteStreams=function(){return t.remoteStreams},this.localDescription=new RTCSessionDescription({type:"",sdp:""}),this.remoteDescription=new RTCSessionDescription({type:"",sdp:""}),this.signalingState="stable",this.iceConnectionState="new",this.iceOptions={gatherPolicy:"all",iceServers:[]},e&&e.iceTransportPolicy)switch(e.iceTransportPolicy){case"all":case"relay":this.iceOptions.gatherPolicy=e.iceTransportPolicy;break;case"none":throw new TypeError('iceTransportPolicy "none" not supported')}e&&e.iceServers&&(this.iceOptions.iceServers=e.iceServers.filter(function(e){return e&&e.urls?(e.urls=e.urls.filter(function(e){return-1!==e.indexOf("transport=udp")})[0],!0):!1})),this.transceivers=[],this._localIceCandidatesBuffer=[]},window.RTCPeerConnection.prototype._emitBufferedCandidates=function(){var e=this;this._localIceCandidatesBuffer.forEach(function(t){null!==e.onicecandidate&&e.onicecandidate(t)}),this._localIceCandidatesBuffer=[]},window.RTCPeerConnection.prototype.addStream=function(e){this.localStreams.push(e.clone()),this._maybeFireNegotiationNeeded()},window.RTCPeerConnection.prototype.removeStream=function(e){var t=this.localStreams.indexOf(e);t>-1&&(this.localStreams.splice(t,1),this._maybeFireNegotiationNeeded())},window.RTCPeerConnection.prototype._getCommonCapabilities=function(e,t){var n={codecs:[],headerExtensions:[],fecMechanisms:[]};return e.codecs.forEach(function(e){for(var r=0;r<t.codecs.length;r++){var i=t.codecs[r];if(e.name.toLowerCase()===i.name.toLowerCase()&&e.clockRate===i.clockRate&&e.numChannels===i.numChannels){n.codecs.push(i);break}}}),e.headerExtensions.forEach(function(e){for(var r=0;r<t.headerExtensions.length;r++){var i=t.headerExtensions[r];if(e.uri===i.uri){n.headerExtensions.push(i);break}}}),n},window.RTCPeerConnection.prototype._createIceAndDtlsTransports=function(e,t){var r=this,i=new RTCIceGatherer(r.iceOptions),o=new RTCIceTransport(i);i.onlocalcandidate=function(a){var s={};s.candidate={sdpMid:e,sdpMLineIndex:t};var c=a.candidate;c&&0!==Object.keys(c).length?(c.component="RTCP"===o.component?2:1,s.candidate.candidate=n.writeCandidate(c)):(void 0===i.state&&(i.state="completed"),s.candidate.candidate="candidate:1 1 udp 1 0.0.0.0 9 typ endOfCandidates");var u=r.transceivers.every(function(e){return e.iceGatherer&&"completed"===e.iceGatherer.state});null!==r.onicecandidate&&(r.localDescription&&""===r.localDescription.type?(r._localIceCandidatesBuffer.push(s),u&&r._localIceCandidatesBuffer.push({})):(r.onicecandidate(s),u&&r.onicecandidate({})))},o.onicestatechange=function(){r._updateConnectionState()};var a=new RTCDtlsTransport(o);return a.ondtlsstatechange=function(){r._updateConnectionState()},a.onerror=function(){a.state="failed",r._updateConnectionState()},{iceGatherer:i,iceTransport:o,dtlsTransport:a}},window.RTCPeerConnection.prototype._transceive=function(e,t,r){var i=this._getCommonCapabilities(e.localCapabilities,e.remoteCapabilities);t&&e.rtpSender&&(i.encodings=[{ssrc:e.sendSsrc}],i.rtcp={cname:n.localCName,ssrc:e.recvSsrc},e.rtpSender.send(i)),r&&e.rtpReceiver&&(i.encodings=[{ssrc:e.recvSsrc}],i.rtcp={cname:e.cname,ssrc:e.sendSsrc},e.rtpReceiver.receive(i))},window.RTCPeerConnection.prototype.setLocalDescription=function(e){var t=this;if("offer"===e.type)this._pendingOffer&&(this.transceivers=this._pendingOffer,delete this._pendingOffer);else if("answer"===e.type){var r=n.splitSections(t.remoteDescription.sdp),i=r.shift();r.forEach(function(e,r){var o=t.transceivers[r],a=o.iceGatherer,s=o.iceTransport,c=o.dtlsTransport,u=o.localCapabilities,p=o.remoteCapabilities,d="0"===e.split("\n",1)[0].split(" 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"),w=b[0],S="0"===b[1],C=n.getDirection(i,o),k=n.parseRtpParameters(i);S||(g=n.getIceParameters(i,o),v=n.getDtlsParameters(i,o));var T,R=n.matchPrefix(i,"a=mid:")[0].substr(6),x=n.matchPrefix(i,"a=ssrc:").map(function(e){return n.parseSsrcMedia(e)}).filter(function(e){return"cname"===e.attribute})[0];if(x&&(h=parseInt(x.ssrc,10),T=x.value),"offer"===e.type){var E=t._createIceAndDtlsTransports(R,a);if(m=RTCRtpReceiver.getCapabilities(w),f=1001*(2*a+2),l=new RTCRtpReceiver(E.dtlsTransport,w),r.addTrack(l.track),t.localStreams.length>0&&t.localStreams[0].getTracks().length>=a){var P=t.localStreams[0].getTracks()[a];d=new RTCRtpSender(P,E.dtlsTransport)}t.transceivers[a]={iceGatherer:E.iceGatherer,iceTransport:E.iceTransport,dtlsTransport:E.dtlsTransport,localCapabilities:m,remoteCapabilities:k,rtpSender:d,rtpReceiver:l,kind:w,mid:R,cname:T,sendSsrc:f,recvSsrc:h},t._transceive(t.transceivers[a],!1,"sendrecv"===C||"sendonly"===C)}else"answer"!==e.type||S||(s=t.transceivers[a],c=s.iceGatherer,u=s.iceTransport,p=s.dtlsTransport,d=s.rtpSender,l=s.rtpReceiver,f=s.sendSsrc,m=s.localCapabilities,t.transceivers[a].recvSsrc=h,t.transceivers[a].remoteCapabilities=k,t.transceivers[a].cname=T,u.start(c,g,"controlling"),p.start(v),t._transceive(s,"sendrecv"===C||"recvonly"===C,"sendrecv"===C||"sendonly"===C),!l||"sendrecv"!==C&&"sendonly"!==C?delete s.rtpReceiver:r.addTrack(l.track))}),this.remoteDescription=e,e.type){case"offer":this._updateSignalingState("have-remote-offer");break;case"answer":this._updateSignalingState("stable");break;default:throw new TypeError('unsupported type "'+e.type+'"')}return window.setTimeout(function(){null!==t.onaddstream&&r.getTracks().length&&(t.remoteStreams.push(r),window.setTimeout(function(){t.onaddstream({stream:r})},0))},0),arguments.length>1&&"function"==typeof arguments[1]&&window.setTimeout(arguments[1],0),Promise.resolve()},window.RTCPeerConnection.prototype.close=function(){this.transceivers.forEach(function(e){e.iceTransport&&e.iceTransport.stop(),e.dtlsTransport&&e.dtlsTransport.stop(),e.rtpSender&&e.rtpSender.stop(),e.rtpReceiver&&e.rtpReceiver.stop()}),this._updateSignalingState("closed")},window.RTCPeerConnection.prototype._updateSignalingState=function(e){this.signalingState=e,null!==this.onsignalingstatechange&&this.onsignalingstatechange()},window.RTCPeerConnection.prototype._maybeFireNegotiationNeeded=function(){null!==this.onnegotiationneeded&&this.onnegotiationneeded()},window.RTCPeerConnection.prototype._updateConnectionState=function(){var e,t=this,n={"new":0,closed:0,connecting:0,checking:0,connected:0,completed:0,failed:0};this.transceivers.forEach(function(e){n[e.iceTransport.state]++,n[e.dtlsTransport.state]++}),n.connected+=n.completed,e="new",n.failed>0?e="failed":n.connecting>0||n.checking>0?e="connecting":n.disconnected>0?e="disconnected":n["new"]>0?e="new":(n.connecting>0||n.completed>0)&&(e="connected"),e!==t.iceConnectionState&&(t.iceConnectionState=e,null!==this.oniceconnectionstatechange&&this.oniceconnectionstatechange())},window.RTCPeerConnection.prototype.createOffer=function(){var e=this;if(this._pendingOffer)throw new Error("createOffer called while there is a pending offer.");var t;1===arguments.length&&"function"!=typeof arguments[0]?t=arguments[0]:3===arguments.length&&(t=arguments[2]);var r=[],i=0,o=0;if(this.localStreams.length&&(i=this.localStreams[0].getAudioTracks().length,o=this.localStreams[0].getVideoTracks().length),t){if(t.mandatory||t.optional)throw new TypeError("Legacy mandatory/optional 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h=s[r];a+=n.writeMediaSection(h,h.localCapabilities,"offer",e.localStreams[0])}),this._pendingOffer=s;var c=new RTCSessionDescription({type:"offer",sdp:a});return arguments.length&&"function"==typeof arguments[0]&&window.setTimeout(arguments[0],0,c),Promise.resolve(c)},window.RTCPeerConnection.prototype.createAnswer=function(){var e,t=this;1===arguments.length&&"function"!=typeof arguments[0]?e=arguments[0]:3===arguments.length&&(e=arguments[2]);var r=n.writeSessionBoilerplate();this.transceivers.forEach(function(e){var i=t._getCommonCapabilities(e.localCapabilities,e.remoteCapabilities);r+=n.writeMediaSection(e,i,"answer",t.localStreams[0])});var i=new RTCSessionDescription({type:"answer",sdp:r});return arguments.length&&"function"==typeof arguments[0]&&window.setTimeout(arguments[0],0,i),Promise.resolve(i)},window.RTCPeerConnection.prototype.addIceCandidate=function(e){var t=e.sdpMLineIndex;if(e.sdpMid)for(var 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navigator&&/gecko/i.test(navigator.userAgent);r&&setTimeout(function(){var e=document.createElement("iframe");document.body.appendChild(e),document.body.removeChild(e)},100)},r.prototype.doWrite=function(e,t){function n(){r(),t()}function r(){if(i.iframe)try{i.form.removeChild(i.iframe)}catch(e){i.onError("jsonp polling iframe removal error",e)}try{var t='<iframe src="javascript:0" name="'+i.iframeId+'">';o=document.createElement(t)}catch(e){o=document.createElement("iframe"),o.name=i.iframeId,o.src="javascript:0"}o.id=i.iframeId,i.form.appendChild(o),i.iframe=o}var i=this;if(!this.form){var o,a=document.createElement("form"),s=document.createElement("textarea"),p=this.iframeId="eio_iframe_"+this.index;a.className="socketio",a.style.position="absolute",a.style.top="-1000px",a.style.left="-1000px",a.target=p,a.method="POST",a.setAttribute("accept-charset","utf-8"),s.name="d",a.appendChild(s),document.body.appendChild(a),this.form=a,this.area=s}this.form.action=this.uri(),r(),e=e.replace(u,"\\\n"),this.area.value=e.replace(c,"\\n");try{this.form.submit()}catch(d){}this.iframe.attachEvent?this.iframe.onreadystatechange=function(){"complete"==i.iframe.readyState&&n()}:this.iframe.onload=n}},{"./polling":94,"component-inherit":95}],75:[function(e,t){function n(e){var t=e&&e.forceBase64;t&&(this.supportsBinary=!1),this.perMessageDeflate=e.perMessageDeflate,i.call(this,e)}var r=self,i=e("../transport"),o=e("engine.io-parser"),a=e("parseqs"),s=e("component-inherit"),c=e("yeast"),u=e("debug")("engine.io-client:websocket"),p=r.WebSocket||r.MozWebSocket,d=p;if(!d&&"undefined"==typeof window)try{d=e("ws")}catch(l){}t.exports=n,s(n,i),n.prototype.name="websocket",n.prototype.supportsBinary=!0,n.prototype.doOpen=function(){if(this.check()){var e=this.uri(),t=void 0,n={agent:this.agent,perMessageDeflate:this.perMessageDeflate};n.pfx=this.pfx,n.key=this.key,n.passphrase=this.passphrase,n.cert=this.cert,n.ca=this.ca,n.ciphers=this.ciphers,n.rejectUnauthorized=this.rejectUnauthorized,this.extraHeaders&&(n.headers=this.extraHeaders),this.ws=p?new d(e):new d(e,t,n),void 0===this.ws.binaryType&&(this.supportsBinary=!1),this.ws.supports&&this.ws.supports.binary?(this.supportsBinary=!0,this.ws.binaryType="buffer"):this.ws.binaryType="arraybuffer",this.addEventListeners()}},n.prototype.addEventListeners=function(){var e=this;this.ws.onopen=function(){e.onOpen()},this.ws.onclose=function(){e.onClose()},this.ws.onmessage=function(t){e.onData(t.data)},this.ws.onerror=function(t){e.onError("websocket error",t)}},"undefined"!=typeof navigator&&/iPad|iPhone|iPod/i.test(navigator.userAgent)&&(n.prototype.onData=function(e){var t=this;setTimeout(function(){i.prototype.onData.call(t,e)},0)}),n.prototype.write=function(e){function t(){n.emit("flush"),setTimeout(function(){n.writable=!0,n.emit("drain")},0)}var n=this;this.writable=!1;for(var i=e.length,a=0,s=i;s>a;a++)!function(e){o.encodePacket(e,n.supportsBinary,function(o){if(!p){var a={};if(e.options&&(a.compress=e.options.compress),n.perMessageDeflate){var s="string"==typeof o?r.Buffer.byteLength(o):o.length;s<n.perMessageDeflate.threshold&&(a.compress=!1)}}try{p?n.ws.send(o):n.ws.send(o,a)}catch(c){u("websocket closed before onclose event")}--i||t()})}(e[a])},n.prototype.onClose=function(){i.prototype.onClose.call(this)},n.prototype.doClose=function(){"undefined"!=typeof this.ws&&this.ws.close()},n.prototype.uri=function(){var e=this.query||{},t=this.secure?"wss":"ws",n="";this.port&&("wss"==t&&443!=this.port||"ws"==t&&80!=this.port)&&(n=":"+this.port),this.timestampRequests&&(e[this.timestampParam]=c()),this.supportsBinary||(e.b64=1),e=a.encode(e),e.length&&(e="?"+e);var r=-1!==this.hostname.indexOf(":");return t+"://"+(r?"["+this.hostname+"]":this.hostname)+n+this.path+e},n.prototype.check=function(){return!(!d||"__initialize"in d&&this.name===n.prototype.name)}},{"../transport":77,"component-inherit":95,debug:26,"engine.io-parser":70,parseqs:79,ws:85,yeast:96}],93:[function(e,t){function n(e){return"number"==typeof e&&e>-1&&0==e%1&&o>=e}function r(e){return!!e&&"object"==typeof e}function i(e){return r(e)&&n(e.length)&&!!O[D.call(e)]}var o=9007199254740991,a="[object Arguments]",s="[object Array]",c="[object Boolean]",u="[object Date]",p="[object Error]",d="[object Function]",l="[object Map]",f="[object Number]",h="[object Object]",m="[object RegExp]",g="[object Set]",v="[object String]",y="[object WeakMap]",b="[object ArrayBuffer]",w="[object Float32Array]",S="[object Float64Array]",C="[object Int8Array]",k="[object Int16Array]",T="[object Int32Array]",R="[object Uint8Array]",x="[object Uint8ClampedArray]",E="[object Uint16Array]",P="[object Uint32Array]",O={};O[w]=O[S]=O[C]=O[k]=O[T]=O[R]=O[x]=O[E]=O[P]=!0,O[a]=O[s]=O[b]=O[c]=O[u]=O[p]=O[d]=O[l]=O[f]=O[h]=O[m]=O[g]=O[v]=O[y]=!1;var _=Object.prototype,D=_.toString;t.exports=i},{}],96:[function(e,t){"use strict";function n(e){var t="";do t=a[e%s]+t,e=Math.floor(e/s);while(e>0);return t}function r(e){var t=0;for(p=0;p<e.length;p++)t=t*s+c[e.charAt(p)];return t}function i(){var e=n(+new Date);return e!==o?(u=0,o=e):e+"."+n(u++)}for(var o,a="0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_".split(""),s=64,c={},u=0,p=0;s>p;p++)c[a[p]]=p;i.encode=n,i.decode=r,t.exports=i},{}],86:[function(e,t){function n(e){function t(e){if(!e)return!1;if(r.Buffer&&r.Buffer.isBuffer(e)||r.ArrayBuffer&&e instanceof ArrayBuffer||r.Blob&&e instanceof Blob||r.File&&e instanceof File)return!0;if(i(e)){for(var n=0;n<e.length;n++)if(t(e[n]))return!0}else if(e&&"object"==typeof e){e.toJSON&&(e=e.toJSON());for(var o in e)if(Object.prototype.hasOwnProperty.call(e,o)&&t(e[o]))return!0}return!1}return t(e)}var r=self,i=e("isarray");t.exports=n},{isarray:52}],95:[function(e,t){t.exports=function(e,t){var n=function(){};n.prototype=t.prototype,e.prototype=new n,e.prototype.constructor=e}},{}],94:[function(e,t){function n(e){var t=e&&e.forceBase64;(!u||t)&&(this.supportsBinary=!1),r.call(this,e)}var r=e("../transport"),i=e("parseqs"),o=e("engine.io-parser"),a=e("component-inherit"),s=e("yeast"),c=e("debug")("engine.io-client:polling");t.exports=n;var u=function(){var t=e("xmlhttprequest-ssl"),n=new t({xdomain:!1});return null!=n.responseType}();a(n,r),n.prototype.name="polling",n.prototype.doOpen=function(){this.poll()},n.prototype.pause=function(e){function t(){c("paused"),n.readyState="paused",e()}var n=this;if(this.readyState="pausing",this.polling||!this.writable){var r=0;this.polling&&(c("we are currently polling - waiting to pause"),r++,this.once("pollComplete",function(){c("pre-pause polling complete"),--r||t()})),this.writable||(c("we are currently writing - waiting to pause"),r++,this.once("drain",function(){c("pre-pause writing complete"),--r||t()}))}else t()},n.prototype.poll=function(){c("polling"),this.polling=!0,this.doPoll(),this.emit("poll")},n.prototype.onData=function(e){var t=this;c("polling got data %s",e);var n=function(e){return"opening"==t.readyState&&t.onOpen(),"close"==e.type?(t.onClose(),!1):(t.onPacket(e),void 0)};o.decodePayload(e,this.socket.binaryType,n),"closed"!=this.readyState&&(this.polling=!1,this.emit("pollComplete"),"open"==this.readyState?this.poll():c('ignoring poll - transport state "%s"',this.readyState))},n.prototype.doClose=function(){function e(){c("writing close packet"),t.write([{type:"close"}])}var t=this;"open"==this.readyState?(c("transport open - closing"),e()):(c("transport not open - deferring close"),this.once("open",e))},n.prototype.write=function(e){var t=this;this.writable=!1;var n=function(){t.writable=!0,t.emit("drain")},t=this;o.encodePayload(e,this.supportsBinary,function(e){t.doWrite(e,n)})},n.prototype.uri=function(){var e=this.query||{},t=this.secure?"https":"http",n="";!1!==this.timestampRequests&&(e[this.timestampParam]=s()),this.supportsBinary||e.sid||(e.b64=1),e=i.encode(e),this.port&&("https"==t&&443!=this.port||"http"==t&&80!=this.port)&&(n=":"+this.port),e.length&&(e="?"+e);var r=-1!==this.hostname.indexOf(":");return t+"://"+(r?"["+this.hostname+"]":this.hostname)+n+this.path+e}},{"../transport":77,"component-inherit":95,debug:26,"engine.io-parser":70,parseqs:79,"xmlhttprequest-ssl":72,yeast:96}]},{},[1])(1)});