@liascript/exporter
Version:
A generic exporter for LiaScript
5 lines • 107 kB
JavaScript
!function(){var e="undefined"!=typeof globalThis?globalThis:"undefined"!=typeof self?self:"undefined"!=typeof window?window:"undefined"!=typeof global?global:{};function t(e,t,n,r){Object.defineProperty(e,t,{get:n,set:r,enumerable:!0,configurable:!0})}var n=e.parcelRequire55a5;n.register("9U0AO",(function(e,t){var r=n("9Klpk"),i=n("3bWnf"),o=n("kb0qF"),a=n("bWNdT"),s=n("cwBhL").Buffer,c=n("dwfPl"),u=n("gQh22"),l=n("h1Pcp"),d=n("bbor2"),f=n("3Uq0m")("p2pt"),h=function(e){"use strict";(0,o.default)(n,e);var t=(0,a.default)(n);function n(){var e,i=arguments.length>0&&void 0!==arguments[0]?arguments[0]:[],o=arguments.length>1&&void 0!==arguments[1]?arguments[1]:"";return(0,r.default)(this,n),(e=t.call(this)).announceURLs=i,e.trackers={},e.peers={},e.msgChunks={},e.responseWaiting={},o&&e.setIdentifier(o),e._peerIdBuffer=u(20),e._peerId=e._peerIdBuffer.toString("hex"),e._peerIdBinary=e._peerIdBuffer.toString("binary"),f("my peer id: "+e._peerId),e}return(0,i.default)(n,[{key:"setIdentifier",value:function(e){this.identifierString=e,this.infoHash=d.sync(e).toLowerCase(),this._infoHashBuffer=s.from(this.infoHash,"hex"),this._infoHashBinary=this._infoHashBuffer.toString("binary")}},{key:"start",value:function(){var e=this;this.on("peer",(function(t){var n=!1;e.peers[t.id]||(n=!0,e.peers[t.id]={},e.responseWaiting[t.id]={}),t.on("connect",(function(){e.peers[t.id][t.channelName]=t,n&&e.emit("peerconnect",t)})),t.on("data",(function(n){if(e.emit("data",t,n),n=n.toString(),f("got a message from "+t.id),"^"===n[0])try{n=JSON.parse(n.slice(1)),t.respond=e._peerRespond(t,n.id);var r=e._chunkHandler(n);!1!==r&&(n.o&&(r=JSON.parse(r)),e.responseWaiting[t.id][n.id]?(e.responseWaiting[t.id][n.id]([t,r]),delete e.responseWaiting[t.id][n.id]):e.emit("msg",t,r),e._destroyChunks(n.id))}catch(e){console.log(e)}})),t.on("error",(function(n){e._removePeer(t),f("Error in connection : "+n)})),t.on("close",(function(){e._removePeer(t),f("Connection closed with "+t.id)}))})),this.on("update",(function(t){var n=e.trackers[e.announceURLs.indexOf(t.announce)];e.emit("trackerconnect",n,e.getTrackerStats())})),this.on("warning",(function(t){e.emit("trackerwarning",t,e.getTrackerStats())})),this._fetchPeers()}},{key:"addTracker",value:function(e){if(-1!==this.announceURLs.indexOf(e))throw new Error("Tracker already added");var t=this.announceURLs.push(e);this.trackers[t]=new c(this,e),this.trackers[t].announce(this._defaultAnnounceOpts())}},{key:"removeTracker",value:function(e){var t=this.announceURLs.indexOf(e);if(-1===t)throw new Error("Tracker does not exist");this.trackers[t].peers=[],this.trackers[t].destroy(),delete this.trackers[t],delete this.announceURLs[t]}},{key:"_removePeer",value:function(e){if(!this.peers[e.id])return!1;delete this.peers[e.id][e.channelName],0===Object.keys(this.peers[e.id]).length&&(this.emit("peerclose",e),delete this.responseWaiting[e.id],delete this.peers[e.id])}},{key:"send",value:function(e,t){var n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:"",r=this;return new Promise((function(i,o){var a={id:""!==n?n:Math.floor(1e5*Math.random()+1e5),msg:t};"object"==typeof t&&(a.msg=JSON.stringify(t),a.o=1);try{if(!e.connected)for(var s in r.peers[e.id])if((e=r.peers[e.id][s]).connected)break;r.responseWaiting[e.id]||(r.responseWaiting[e.id]={}),r.responseWaiting[e.id][a.id]=i}catch(e){return o(Error("Connection to peer closed"+e))}for(var c=0,u="";a.msg.length>0;)a.c=c,u=a.msg.slice(16e3),a.msg=a.msg.slice(0,16e3),u||(a.last=!0),e.send("^"+JSON.stringify(a)),a.msg=u,c++;f("sent a message to "+e.id)}))}},{key:"requestMorePeers",value:function(){var e=this;return new Promise((function(t){for(var n in e.trackers)e.trackers[n].announce(e._defaultAnnounceOpts());t(e.peers)}))}},{key:"getTrackerStats",value:function(){var e=0;for(var t in this.trackers)this.trackers[t].socket&&this.trackers[t].socket.connected&&e++;return{connected:e,total:this.announceURLs.length}}},{key:"destroy",value:function(){var e;for(e in this.peers)for(var t in this.peers[e])this.peers[e][t].destroy();for(e in this.trackers)this.trackers[e].destroy()}},{key:"_peerRespond",value:function(e,t){var n=this;return function(r){return n.send(e,r,t)}}},{key:"_chunkHandler",value:function(e){return this.msgChunks[e.id]||(this.msgChunks[e.id]=[]),this.msgChunks[e.id][e.c]=e.msg,!!e.last&&this.msgChunks[e.id].join("")}},{key:"_destroyChunks",value:function(e){delete this.msgChunks[e]}},{key:"_defaultAnnounceOpts",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};return null==e.numwant&&(e.numwant=50),null==e.uploaded&&(e.uploaded=0),null==e.downloaded&&(e.downloaded=0),e}},{key:"_fetchPeers",value:function(){for(var e in this.announceURLs)this.trackers[e]=new c(this,this.announceURLs[e]),this.trackers[e].announce(this._defaultAnnounceOpts())}}]),n}(l);e.exports=h})),n.register("dwfPl",(function(e,t){var r=n("9Klpk"),i=n("3bWnf"),o=n("kb0qF"),a=n("bWNdT"),s=n("fElHP"),c=n("3Uq0m")("bittorrent-tracker:websocket-tracker"),u=n("6KQef"),l=n("gQh22"),d=n("fR1r3"),f=n("lfll6"),h=n("5WITx"),p=n("fXqp1"),g={},_=function(e){"use strict";(0,o.default)(n,e);var t=(0,a.default)(n);function n(e,i){var o;return(0,r.default)(this,n),o=t.call(this,e,i),c("new websocket tracker %s",i),o.peers={},o.socket=null,o.reconnecting=!1,o.retries=0,o.reconnectTimer=null,o.expectingResponse=!1,o._openSocket(),o}return(0,i.default)(n,[{key:"announce",value:function(e){var t=this;if(!this.destroyed&&!this.reconnecting)if(this.socket.connected){var n=Object.assign({},e,{action:"announce",info_hash:this.client._infoHashBinary,peer_id:this.client._peerIdBinary});if(this._trackerId&&(n.trackerid=this._trackerId),"stopped"===e.event||"completed"===e.event)this._send(n);else{var r=Math.min(e.numwant,5);this._generateOffers(r,(function(e){n.numwant=r,n.offers=e,t._send(n)}))}}else this.socket.once("connect",(function(){t.announce(e)}))}},{key:"scrape",value:function(e){var t=this;if(!this.destroyed&&!this.reconnecting)if(this.socket.connected){var n={action:"scrape",info_hash:Array.isArray(e.infoHash)&&e.infoHash.length>0?e.infoHash.map((function(e){return e.toString("binary")})):e.infoHash&&e.infoHash.toString("binary")||this.client._infoHashBinary};this._send(n)}else this.socket.once("connect",(function(){t.scrape(e)}))}},{key:"destroy",value:function(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:y;if(this.destroyed)return e(null);for(var t in this.destroyed=!0,clearInterval(this.interval),clearTimeout(this.reconnectTimer),this.peers){var n=this.peers[t];clearTimeout(n.trackerTimeout),n.destroy()}if(this.peers=null,this.socket&&(this.socket.removeListener("connect",this._onSocketConnectBound),this.socket.removeListener("data",this._onSocketDataBound),this.socket.removeListener("close",this._onSocketCloseBound),this.socket.removeListener("error",this._onSocketErrorBound),this.socket=null),this._onSocketConnectBound=null,this._onSocketErrorBound=null,this._onSocketDataBound=null,this._onSocketCloseBound=null,g[this.announceUrl]&&(g[this.announceUrl].consumers-=1),g[this.announceUrl].consumers>0)return e();var r,i=g[this.announceUrl];if(delete g[this.announceUrl],i.on("error",y),i.once("close",e),!this.expectingResponse)return o();function o(){r&&(clearTimeout(r),r=null),i.removeListener("data",o),i.destroy(),i=null}r=setTimeout(o,h.DESTROY_TIMEOUT),i.once("data",o)}},{key:"_openSocket",value:function(){var e=this;if(this.destroyed=!1,this.peers||(this.peers={}),this._onSocketConnectBound=function(){e._onSocketConnect()},this._onSocketErrorBound=function(t){e._onSocketError(t)},this._onSocketDataBound=function(t){e._onSocketData(t)},this._onSocketCloseBound=function(){e._onSocketClose()},this.socket=g[this.announceUrl],this.socket)g[this.announceUrl].consumers+=1,this.socket.connected&&this._onSocketConnectBound();else{var t,n=new URL(this.announceUrl);this.client._proxyOpts&&!(t="wss:"===n.protocol?this.client._proxyOpts.httpsAgent:this.client._proxyOpts.httpAgent)&&this.client._proxyOpts.socksProxy&&(t=new f.Agent(s(this.client._proxyOpts.socksProxy),"wss:"===n.protocol)),this.socket=g[this.announceUrl]=new d({url:this.announceUrl,agent:t}),this.socket.consumers=1,this.socket.once("connect",this._onSocketConnectBound)}this.socket.on("data",this._onSocketDataBound),this.socket.once("close",this._onSocketCloseBound),this.socket.once("error",this._onSocketErrorBound)}},{key:"_onSocketConnect",value:function(){this.destroyed||this.reconnecting&&(this.reconnecting=!1,this.retries=0,this.announce(this.client._defaultAnnounceOpts()))}},{key:"_onSocketData",value:function(e){if(!this.destroyed){this.expectingResponse=!1;try{e=JSON.parse(e)}catch(e){return void this.client.emit("warning",new Error("Invalid tracker response"))}"announce"===e.action?this._onAnnounceResponse(e):"scrape"===e.action?this._onScrapeResponse(e):this._onSocketError(new Error("invalid action in WS response: ".concat(e.action)))}}},{key:"_onAnnounceResponse",value:function(e){var t=this;if(e.info_hash===this.client._infoHashBinary){if(!e.peer_id||e.peer_id!==this.client._peerIdBinary){c("received %s from %s for %s",JSON.stringify(e),this.announceUrl,this.client.infoHash);var n=e["failure reason"];if(n)return this.client.emit("warning",new Error(n));var r=e["warning message"];r&&this.client.emit("warning",new Error(r));var i=e.interval||e["min interval"];i&&this.setInterval(1e3*i);var o,a=e["tracker id"];if(a&&(this._trackerId=a),null!=e.complete){var s=Object.assign({},e,{announce:this.announceUrl,infoHash:h.binaryToHex(e.info_hash)});this.client.emit("update",s)}if(e.offer&&e.peer_id&&(c("creating peer (from remote offer)"),(o=this._createPeer()).id=h.binaryToHex(e.peer_id),o.once("signal",(function(n){var r={action:"announce",info_hash:t.client._infoHashBinary,peer_id:t.client._peerIdBinary,to_peer_id:e.peer_id,answer:n,offer_id:e.offer_id};t._trackerId&&(r.trackerid=t._trackerId),t._send(r)})),this.client.emit("peer",o),o.signal(e.offer)),e.answer&&e.peer_id){var u=h.binaryToHex(e.offer_id);(o=this.peers[u])?(o.id=h.binaryToHex(e.peer_id),this.client.emit("peer",o),o.signal(e.answer),clearTimeout(o.trackerTimeout),o.trackerTimeout=null,delete this.peers[u]):c("got unexpected answer: ".concat(JSON.stringify(e.answer)))}}}else c("ignoring websocket data from %s for %s (looking for %s: reused socket)",this.announceUrl,h.binaryToHex(e.info_hash),this.client.infoHash)}},{key:"_onScrapeResponse",value:function(e){var t=this;e=e.files||{};var n=Object.keys(e);0!==n.length?n.forEach((function(n){var r=Object.assign(e[n],{announce:t.announceUrl,infoHash:h.binaryToHex(n)});t.client.emit("scrape",r)})):this.client.emit("warning",new Error("invalid scrape response"))}},{key:"_onSocketClose",value:function(){this.destroyed||(this.destroy(),this._startReconnectTimer())}},{key:"_onSocketError",value:function(e){this.destroyed||(this.destroy(),this.client.emit("warning",e),this._startReconnectTimer())}},{key:"_startReconnectTimer",value:function(){var e=this,t=Math.floor(3e5*Math.random())+Math.min(1e4*Math.pow(2,this.retries),36e5);this.reconnecting=!0,clearTimeout(this.reconnectTimer),this.reconnectTimer=setTimeout((function(){e.retries++,e._openSocket()}),t),this.reconnectTimer.unref&&this.reconnectTimer.unref(),c("reconnecting socket in %s ms",t)}},{key:"_send",value:function(e){if(!this.destroyed){this.expectingResponse=!0;var t=JSON.stringify(e);c("send %s",t),this.socket.send(t)}}},{key:"_generateOffers",value:function(e,t){var n=function(){var e=l(20).toString("hex");c("creating peer (from _generateOffers)");var t=i.peers[e]=i._createPeer({initiator:!0});t.once("signal",(function(t){o.push({offer:t,offer_id:h.hexToBinary(e)}),r()})),t.trackerTimeout=setTimeout((function(){c("tracker timeout: destroying peer"),t.trackerTimeout=null,delete i.peers[e],t.destroy()}),5e4),t.trackerTimeout.unref&&t.trackerTimeout.unref()},r=function(){o.length===e&&(c("generated %s offers",e),t(o))},i=this,o=[];c("generating %s offers",e);for(var a=0;a<e;++a)n();r()}},{key:"_createPeer",value:function(e){var t=function(e){n.client.emit("warning",new Error("Connection error: ".concat(e.message))),r.destroy()},n=this;e=Object.assign({trickle:!1,config:n.client._rtcConfig,wrtc:n.client._wrtc},e);var r=new u(e);return r.once("error",t),r.once("connect",(function e(){r.removeListener("error",t),r.removeListener("connect",e)})),r}}]),n}(p);function y(){}_.prototype.DEFAULT_ANNOUNCE_INTERVAL=3e4,_._socketPool=g,e.exports=_})),n.register("fElHP",(function(e,t){var r=n("cwBhL").Buffer,i=function(){"use strict";var e,t,n,i=function(e,t){return null!=t&&e instanceof t},o=function(e){return Object.prototype.toString.call(e)},a=function(e){var t="";return e.global&&(t+="g"),e.ignoreCase&&(t+="i"),e.multiline&&(t+="m"),t};try{e=Map}catch(t){e=function(){}}try{t=Set}catch(e){t=function(){}}try{n=Promise}catch(e){n=function(){}}function s(o,c,u,l,d){"object"==typeof c&&(u=c.depth,l=c.prototype,d=c.includeNonEnumerable,c=c.circular);var f=[],h=[],p=void 0!==r;return void 0===c&&(c=!0),void 0===u&&(u=1/0),function o(u,g){if(null===u)return null;if(0===g)return u;var _,y;if("object"!=typeof u)return u;if(i(u,e))_=new e;else if(i(u,t))_=new t;else if(i(u,n))_=new n((function(e,t){u.then((function(t){e(o(t,g-1))}),(function(e){t(o(e,g-1))}))}));else if(s.__isArray(u))_=[];else if(s.__isRegExp(u))_=new RegExp(u.source,a(u)),u.lastIndex&&(_.lastIndex=u.lastIndex);else if(s.__isDate(u))_=new Date(u.getTime());else{if(p&&r.isBuffer(u))return _=r.allocUnsafe?r.allocUnsafe(u.length):new r(u.length),u.copy(_),_;i(u,Error)?_=Object.create(u):void 0===l?(y=Object.getPrototypeOf(u),_=Object.create(y)):(_=Object.create(l),y=l)}if(c){var v=f.indexOf(u);if(-1!=v)return h[v];f.push(u),h.push(_)}for(var b in i(u,e)&&u.forEach((function(e,t){var n=o(t,g-1),r=o(e,g-1);_.set(n,r)})),i(u,t)&&u.forEach((function(e){var t=o(e,g-1);_.add(t)})),u){var m;y&&(m=Object.getOwnPropertyDescriptor(y,b)),m&&null==m.set||(_[b]=o(u[b],g-1))}if(Object.getOwnPropertySymbols){var w=Object.getOwnPropertySymbols(u);for(b=0;b<w.length;b++){var k=w[b];(!(C=Object.getOwnPropertyDescriptor(u,k))||C.enumerable||d)&&(_[k]=o(u[k],g-1),C.enumerable||Object.defineProperty(_,k,{enumerable:!1}))}}if(d){var S=Object.getOwnPropertyNames(u);for(b=0;b<S.length;b++){var C,E=S[b];(C=Object.getOwnPropertyDescriptor(u,E))&&C.enumerable||(_[E]=o(u[E],g-1),Object.defineProperty(_,E,{enumerable:!1}))}}return _}(o,u)}return s.clonePrototype=function(e){if(null===e)return null;var t=function(){};return t.prototype=e,new t},s.__objToStr=o,s.__isDate=function(e){return"object"==typeof e&&"[object Date]"===o(e)},s.__isArray=function(e){return"object"==typeof e&&"[object Array]"===o(e)},s.__isRegExp=function(e){return"object"==typeof e&&"[object RegExp]"===o(e)},s.__getRegExpFlags=a,s}();e.exports&&(e.exports=i)})),n.register("3Uq0m",(function(e,t){var r,i=n("84cK9");e.exports.formatArgs=function(t){if(t[0]=(this.useColors?"%c":"")+this.namespace+(this.useColors?" %c":" ")+t[0]+(this.useColors?"%c ":" ")+"+"+e.exports.humanize(this.diff),this.useColors){var n="color: "+this.color;t.splice(1,0,n,"color: inherit");var r=0,i=0;t[0].replace(/%[a-zA-Z%]/g,(function(e){"%%"!==e&&(r++,"%c"===e&&(i=r))})),t.splice(i,0,n)}},e.exports.save=function(t){try{t?e.exports.storage.setItem("debug",t):e.exports.storage.removeItem("debug")}catch(e){}},e.exports.load=function(){var t;try{t=e.exports.storage.getItem("debug")}catch(e){}return!t&&void 0!==i&&"env"in i&&(t=void 0),t},e.exports.useColors=function(){return!("undefined"==typeof window||!window.process||"renderer"!==window.process.type&&!window.process.__nwjs)||("undefined"==typeof navigator||!navigator.userAgent||!navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/))&&("undefined"!=typeof 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/*! simple-peer. MIT License. Feross Aboukhadijeh <https://feross.org/opensource> */
var r=n("9Klpk"),i=n("3bWnf"),o=n("kb0qF"),a=n("1Qswt"),s=n("bWNdT"),c=n("3Uq0m")("simple-peer"),u=n("jttaJ"),l=n("gQh22"),d=n("dBbLm"),f=n("cfDOX"),h=n("6GRLr"),p=n("cwBhL").Buffer,g=65536;function _(e){return e.replace(/a=ice-options:trickle\s\n/g,"")}var y=function(e){"use strict";(0,o.default)(n,e);var t=(0,s.default)(n);function n(e){var i;if((0,r.default)(this,n),e=Object.assign({allowHalfOpen:!1},e),(i=t.call(this,e))._id=l(4).toString("hex").slice(0,7),i._debug("new peer %o",e),i.channelName=e.initiator?e.channelName||l(20).toString("hex"):null,i.initiator=e.initiator||!1,i.channelConfig=e.channelConfig||n.channelConfig,i.channelNegotiated=i.channelConfig.negotiated,i.config=Object.assign({},n.config,e.config),i.offerOptions=e.offerOptions||{},i.answerOptions=e.answerOptions||{},i.sdpTransform=e.sdpTransform||function(e){return e},i.streams=e.streams||(e.stream?[e.stream]:[]),i.trickle=void 0===e.trickle||e.trickle,i.allowHalfTrickle=void 0!==e.allowHalfTrickle&&e.allowHalfTrickle,i.iceCompleteTimeout=e.iceCompleteTimeout||5e3,i.destroyed=!1,i.destroying=!1,i._connected=!1,i.remoteAddress=void 0,i.remoteFamily=void 0,i.remotePort=void 0,i.localAddress=void 0,i.localFamily=void 0,i.localPort=void 0,i._wrtc=e.wrtc&&"object"==typeof e.wrtc?e.wrtc:u(),!i._wrtc)throw"undefined"==typeof window?h(new Error("No WebRTC support: Specify `opts.wrtc` option in this environment"),"ERR_WEBRTC_SUPPORT"):h(new Error("No WebRTC support: Not a supported browser"),"ERR_WEBRTC_SUPPORT");i._pcReady=!1,i._channelReady=!1,i._iceComplete=!1,i._iceCompleteTimer=null,i._channel=null,i._pendingCandidates=[],i._isNegotiating=!1,i._firstNegotiation=!0,i._batchedNegotiation=!1,i._queuedNegotiation=!1,i._sendersAwaitingStable=[],i._senderMap=new Map,i._closingInterval=null,i._remoteTracks=[],i._remoteStreams=[],i._chunk=null,i._cb=null,i._interval=null;try{i._pc=new i._wrtc.RTCPeerConnection(i.config)}catch(e){return i.destroy(h(e,"ERR_PC_CONSTRUCTOR")),(0,a.default)(i)}return i._isReactNativeWebrtc="number"==typeof i._pc._peerConnectionId,i._pc.oniceconnectionstatechange=function(){i._onIceStateChange()},i._pc.onicegatheringstatechange=function(){i._onIceStateChange()},i._pc.onconnectionstatechange=function(){i._onConnectionStateChange()},i._pc.onsignalingstatechange=function(){i._onSignalingStateChange()},i._pc.onicecandidate=function(e){i._onIceCandidate(e)},"object"==typeof i._pc.peerIdentity&&i._pc.peerIdentity.catch((function(e){i.destroy(h(e,"ERR_PC_PEER_IDENTITY"))})),i.initiator||i.channelNegotiated?i._setupData({channel:i._pc.createDataChannel(i.channelName,i.channelConfig)}):i._pc.ondatachannel=function(e){i._setupData(e)},i.streams&&i.streams.forEach((function(e){i.addStream(e)})),i._pc.ontrack=function(e){i._onTrack(e)},i._debug("initial negotiation"),i._needsNegotiation(),i._onFinishBound=function(){i._onFinish()},i.once("finish",i._onFinishBound),i}return(0,i.default)(n,[{key:"bufferSize",get:function(){return this._channel&&this._channel.bufferedAmount||0}},{key:"connected",get:function(){return this._connected&&"open"===this._channel.readyState}},{key:"address",value:function(){return{port:this.localPort,family:this.localFamily,address:this.localAddress}}},{key:"signal",value:function(e){var t=this;if(!this.destroying){if(this.destroyed)throw h(new Error("cannot signal after peer is destroyed"),"ERR_DESTROYED");if("string"==typeof e)try{e=JSON.parse(e)}catch(t){e={}}this._debug("signal()"),e.renegotiate&&this.initiator&&(this._debug("got request to renegotiate"),this._needsNegotiation()),e.transceiverRequest&&this.initiator&&(this._debug("got request for transceiver"),this.addTransceiver(e.transceiverRequest.kind,e.transceiverRequest.init)),e.candidate&&(this._pc.remoteDescription&&this._pc.remoteDescription.type?this._addIceCandidate(e.candidate):this._pendingCandidates.push(e.candidate)),e.sdp&&this._pc.setRemoteDescription(new this._wrtc.RTCSessionDescription(e)).then((function(){t.destroyed||(t._pendingCandidates.forEach((function(e){t._addIceCandidate(e)})),t._pendingCandidates=[],"offer"===t._pc.remoteDescription.type&&t._createAnswer())})).catch((function(e){t.destroy(h(e,"ERR_SET_REMOTE_DESCRIPTION"))})),e.sdp||e.candidate||e.renegotiate||e.transceiverRequest||this.destroy(h(new Error("signal() called with invalid signal data"),"ERR_SIGNALING"))}}},{key:"_addIceCandidate",value:function(e){var t=this,n=new this._wrtc.RTCIceCandidate(e);this._pc.addIceCandidate(n).catch((function(e){!n.address||n.address.endsWith(".local")?("Ignoring unsupported ICE candidate.",console.warn("Ignoring unsupported ICE candidate.")):t.destroy(h(e,"ERR_ADD_ICE_CANDIDATE"))}))}},{key:"send",value:function(e){if(!this.destroying){if(this.destroyed)throw h(new Error("cannot send after peer is destroyed"),"ERR_DESTROYED");this._channel.send(e)}}},{key:"addTransceiver",value:function(e,t){if(!this.destroying){if(this.destroyed)throw h(new Error("cannot addTransceiver after peer is destroyed"),"ERR_DESTROYED");if(this._debug("addTransceiver()"),this.initiator)try{this._pc.addTransceiver(e,t),this._needsNegotiation()}catch(e){this.destroy(h(e,"ERR_ADD_TRANSCEIVER"))}else this.emit("signal",{type:"transceiverRequest",transceiverRequest:{kind:e,init:t}})}}},{key:"addStream",value:function(e){var t=this;if(!this.destroying){if(this.destroyed)throw h(new Error("cannot addStream after peer is destroyed"),"ERR_DESTROYED");this._debug("addStream()"),e.getTracks().forEach((function(n){t.addTrack(n,e)}))}}},{key:"addTrack",value:function(e,t){if(!this.destroying){if(this.destroyed)throw h(new Error("cannot addTrack after peer is destroyed"),"ERR_DESTROYED");this._debug("addTrack()");var n=this._senderMap.get(e)||new Map,r=n.get(t);if(r)throw r.removed?h(new Error("Track has been removed. You should enable/disable tracks that you want to re-add."),"ERR_SENDER_REMOVED"):h(new Error("Track has already been added to that stream."),"ERR_SENDER_ALREADY_ADDED");r=this._pc.addTrack(e,t),n.set(t,r),this._senderMap.set(e,n),this._needsNegotiation()}}},{key:"replaceTrack",value:function(e,t,n){if(!this.destroying){if(this.destroyed)throw h(new Error("cannot replaceTrack after peer is destroyed"),"ERR_DESTROYED");this._debug("replaceTrack()");var r=this._senderMap.get(e),i=r?r.get(n):null;if(!i)throw h(new Error("Cannot replace track that was never added."),"ERR_TRACK_NOT_ADDED");t&&this._senderMap.set(t,r),null!=i.replaceTrack?i.replaceTrack(t):this.destroy(h(new Error("replaceTrack is not supported in this browser"),"ERR_UNSUPPORTED_REPLACETRACK"))}}},{key:"removeTrack",value:function(e,t){if(!this.destroying){if(this.destroyed)throw h(new Error("cannot removeTrack after peer is destroyed"),"ERR_DESTROYED");this._debug("removeSender()");var n=this._senderMap.get(e),r=n?n.get(t):null;if(!r)throw h(new Error("Cannot remove track that was never added."),"ERR_TRACK_NOT_ADDED");try{r.removed=!0,this._pc.removeTrack(r)}catch(e){"NS_ERROR_UNEXPECTED"===e.name?this._sendersAwaitingStable.push(r):this.destroy(h(e,"ERR_REMOVE_TRACK"))}this._needsNegotiation()}}},{key:"removeStream",value:function(e){var t=this;if(!this.destroying){if(this.destroyed)throw h(new Error("cannot removeStream after peer is destroyed"),"ERR_DESTROYED");this._debug("removeSenders()"),e.getTracks().forEach((function(n){t.removeTrack(n,e)}))}}},{key:"_needsNegotiation",value:function(){var e=this;this._debug("_needsNegotiation"),this._batchedNegotiation||(this._batchedNegotiation=!0,f((function(){e._batchedNegotiation=!1,e.initiator||!e._firstNegotiation?(e._debug("starting batched negotiation"),e.negotiate()):e._debug("non-initiator initial negotiation request discarded"),e._firstNegotiation=!1})))}},{key:"negotiate",value:function(){var e=this;if(!this.destroying){if(this.destroyed)throw h(new Error("cannot negotiate after peer is destroyed"),"ERR_DESTROYED");this.initiator?this._isNegotiating?(this._queuedNegotiation=!0,this._debug("already negotiating, queueing")):(this._debug("start negotiation"),setTimeout((function(){e._createOffer()}),0)):this._isNegotiating?(this._queuedNegotiation=!0,this._debug("already negotiating, queueing")):(this._debug("requesting negotiation from initiator"),this.emit("signal",{type:"renegotiate",renegotiate:!0})),this._isNegotiating=!0}}},{key:"destroy",value:function(e){this._destroy(e,(function(){}))}},{key:"_destroy",value:function(e,t){var n=this;this.destroyed||this.destroying||(this.destroying=!0,this._debug("destroying (error: %s)",e&&(e.message||e)),f((function(){if(n.destroyed=!0,n.destroying=!1,n._debug("destroy (error: %s)",e&&(e.message||e)),n.readable=n.writable=!1,n._readableState.ended||n.push(null),n._writableState.finished||n.end(),n._connected=!1,n._pcReady=!1,n._channelReady=!1,n._remoteTracks=null,n._remoteStreams=null,n._senderMap=null,clearInterval(n._closingInterval),n._closingInterval=null,clearInterval(n._interval),n._interval=null,n._chunk=null,n._cb=null,n._onFinishBound&&n.removeListener("finish",n._onFinishBound),n._onFinishBound=null,n._channel){try{n._channel.close()}catch(e){}n._channel.onmessage=null,n._channel.onopen=null,n._channel.onclose=null,n._channel.onerror=null}if(n._pc){try{n._pc.close()}catch(e){}n._pc.oniceconnectionstatechange=null,n._pc.onicegatheringstatechange=null,n._pc.onsignalingstatechange=null,n._pc.onicecandidate=null,n._pc.ontrack=null,n._pc.ondatachannel=null}n._pc=null,n._channel=null,e&&n.emit("error",e),n.emit("close"),t()})))}},{key:"_setupData",value:function(e){var t=this;if(!e.channel)return this.destroy(h(new Error("Data channel event is missing `channel` property"),"ERR_DATA_CHANNEL"));this._channel=e.channel,this._channel.binaryType="arraybuffer","number"==typeof this._channel.bufferedAmountLowThreshold&&(this._channel.bufferedAmountLowThreshold=g),this.channelName=this._channel.label,this._channel.onmessage=function(e){t._onChannelMessage(e)},this._channel.onbufferedamountlow=function(){t._onChannelBufferedAmountLow()},this._channel.onopen=function(){t._onChannelOpen()},this._channel.onclose=function(){t._onChannelClose()},this._channel.onerror=function(e){var n=e.error instanceof Error?e.error:new Error("Datachannel error: ".concat(e.message," ").concat(e.filename,":").concat(e.lineno,":").concat(e.colno));t.destroy(h(n,"ERR_DATA_CHANNEL"))};var n=!1;this._closingInterval=setInterval((function(){t._channel&&"closing"===t._channel.readyState?(n&&t._onChannelClose(),n=!0):n=!1}),5e3)}},{key:"_read",value:function(){}},{key:"_write",value:function(e,t,n){if(this.destroyed)return n(h(new Error("cannot write after peer is destroyed"),"ERR_DATA_CHANNEL"));if(this._connected){try{this.send(e)}catch(e){return this.destroy(h(e,"ERR_DATA_CHANNEL"))}this._channel.bufferedAmount>g?(this._debug("start backpressure: bufferedAmount %d",this._channel.bufferedAmount),this._cb=n):n(null)}else this._debug("write before connect"),this._chunk=e,this._cb=n}},{key:"_onFinish",value:function(){var e=this;if(!this.destroyed){var t=function(){setTimeout((function(){return e.destroy()}),1e3)};this._connected?t():this.once("connect",t)}}},{key:"_startIceCompleteTimeout",value:function(){var e=this;this.destroyed||this._iceCompleteTimer||(this._debug("started iceComplete timeout"),this._iceCompleteTimer=setTimeout((function(){e._iceComplete||(e._iceComplete=!0,e._debug("iceComplete timeout completed"),e.emit("iceTimeout"),e.emit("_iceComplete"))}),this.iceCompleteTimeout))}},{key:"_createOffer",value:function(){var e=this;this.destroyed||this._pc.createOffer(this.offerOptions).then((function(t){if(!e.destroyed){e.trickle||e.allowHalfTrickle||(t.sdp=_(t.sdp)),t.sdp=e.sdpTransform(t.sdp);var n=function(){if(!e.destroyed){var n=e._pc.localDescription||t;e._debug("signal"),e.emit("signal",{type:n.type,sdp:n.sdp})}};e._pc.setLocalDescription(t).then((function(){e._debug("createOffer success"),e.destroyed||(e.trickle||e._iceComplete?n():e.once("_iceComplete",n))})).catch((function(t){e.destroy(h(t,"ERR_SET_LOCAL_DESCRIPTION"))}))}})).catch((function(t){e.destroy(h(t,"ERR_CREATE_OFFER"))}))}},{key:"_requestMissingTransceivers",value:function(){var e=this;this._pc.getTransceivers&&this._pc.getTransceivers().forEach((function(t){t.mid||!t.sender.track||t.requested||(t.requested=!0,e.addTransceiver(t.sender.track.kind))}))}},{key:"_createAnswer",value:function(){var e=this;this.destroyed||this._pc.createAnswer(this.answerOptions).then((function(t){if(!e.destroyed){e.trickle||e.allowHalfTrickle||(t.sdp=_(t.sdp)),t.sdp=e.sdpTransform(t.sdp);var n=function(){if(!e.destroyed){var n=e._pc.localDescription||t;e._debug("signal"),e.emit("signal",{type:n.type,sdp:n.sdp}),e.initiator||e._requestMissingTransceivers()}};e._pc.setLocalDescription(t).then((function(){e.destroyed||(e.trickle||e._iceComplete?n():e.once("_iceComplete",n))})).catch((function(t){e.destroy(h(t,"ERR_SET_LOCAL_DESCRIPTION"))}))}})).catch((function(t){e.destroy(h(t,"ERR_CREATE_ANSWER"))}))}},{key:"_onConnectionStateChange",value:function(){this.destroyed||"failed"===this._pc.connectionState&&this.destroy(h(new Error("Connection failed."),"ERR_CONNECTION_FAILURE"))}},{key:"_onIceStateChange",value:function(){if(!this.destroyed){var e=this._pc.iceConnectionState,t=this._pc.iceGatheringState;this._debug("iceStateChange (connection: %s) (gathering: 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e(t)})):e(null,[])}},{key:"_maybeReady",value:function(){var e=this;if(this._debug("maybeReady pc %s channel %s",this._pcReady,this._channelReady),!this._connected&&!this._connecting&&this._pcReady&&this._channelReady){this._connecting=!0;var t=function(){e.destroyed||e.getStats((function(n,r){if(!e.destroyed){n&&(r=[]);var i={},o={},a={},s=!1;r.forEach((function(e){"remotecandidate"!==e.type&&"remote-candidate"!==e.type||(i[e.id]=e),"localcandidate"!==e.type&&"local-candidate"!==e.type||(o[e.id]=e),"candidatepair"!==e.type&&"candidate-pair"!==e.type||(a[e.id]=e)}));var c=function(t){s=!0;var n=o[t.localCandidateId];n&&(n.ip||n.address)?(e.localAddress=n.ip||n.address,e.localPort=Number(n.port)):n&&n.ipAddress?(e.localAddress=n.ipAddress,e.localPort=Number(n.portNumber)):"string"==typeof t.googLocalAddress&&(n=t.googLocalAddress.split(":"),e.localAddress=n[0],e.localPort=Number(n[1])),e.localAddress&&(e.localFamily=e.localAddress.includes(":")?"IPv6":"IPv4");var 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