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/*! simple-peer. MIT License. Feross Aboukhadijeh <https://feross.org/opensource> */
const r=n("34eb")("simple-peer"),i=n("de83"),o=n("11dc"),s=n("e372"),a=n("8712"),c=n("b6aa"),{Buffer:h}=n("b639"),u=65536,f=5e3,d=5e3;function l(e){return e.replace(/a=ice-options:trickle\s\n/g,"")}function p(e){console.warn(e)}class g extends s.Duplex{constructor(e){if(e=Object.assign({allowHalfOpen:!1},e),super(e),this._id=o(4).toString("hex").slice(0,7),this._debug("new peer %o",e),this.channelName=e.initiator?e.channelName||o(20).toString("hex"):null,this.initiator=e.initiator||!1,this.channelConfig=e.channelConfig||g.channelConfig,this.channelNegotiated=this.channelConfig.negotiated,this.config=Object.assign({},g.config,e.config),this.offerOptions=e.offerOptions||{},this.answerOptions=e.answerOptions||{},this.sdpTransform=e.sdpTransform||(e=>e),this.streams=e.streams||(e.stream?[e.stream]:[]),this.trickle=void 0===e.trickle||e.trickle,this.allowHalfTrickle=void 0!==e.allowHalfTrickle&&e.allowHalfTrickle,this.iceCompleteTimeout=e.iceCompleteTimeout||f,this.destroyed=!1,this.destroying=!1,this._connected=!1,this.remoteAddress=void 0,this.remoteFamily=void 0,this.remotePort=void 0,this.localAddress=void 0,this.localFamily=void 0,this.localPort=void 0,this._wrtc=e.wrtc&&"object"===typeof e.wrtc?e.wrtc:i(),!this._wrtc)throw"undefined"===typeof window?c(new Error("No WebRTC support: Specify `opts.wrtc` option in this environment"),"ERR_WEBRTC_SUPPORT"):c(new Error("No WebRTC support: Not a supported browser"),"ERR_WEBRTC_SUPPORT");this._pcReady=!1,this._channelReady=!1,this._iceComplete=!1,this._iceCompleteTimer=null,this._channel=null,this._pendingCandidates=[],this._isNegotiating=!1,this._firstNegotiation=!0,this._batchedNegotiation=!1,this._queuedNegotiation=!1,this._sendersAwaitingStable=[],this._senderMap=new Map,this._closingInterval=null,this._remoteTracks=[],this._remoteStreams=[],this._chunk=null,this._cb=null,this._interval=null;try{this._pc=new this._wrtc.RTCPeerConnection(this.config)}catch(t){return void this.destroy(c(t,"ERR_PC_CONSTRUCTOR"))}this._isReactNativeWebrtc="number"===typeof this._pc._peerConnectionId,this._pc.oniceconnectionstatechange=()=>{this._onIceStateChange()},this._pc.onicegatheringstatechange=()=>{this._onIceStateChange()},this._pc.onconnectionstatechange=()=>{this._onConnectionStateChange()},this._pc.onsignalingstatechange=()=>{this._onSignalingStateChange()},this._pc.onicecandidate=e=>{this._onIceCandidate(e)},"object"===typeof this._pc.peerIdentity&&this._pc.peerIdentity.catch(e=>{this.destroy(c(e,"ERR_PC_PEER_IDENTITY"))}),this.initiator||this.channelNegotiated?this._setupData({channel:this._pc.createDataChannel(this.channelName,this.channelConfig)}):this._pc.ondatachannel=e=>{this._setupData(e)},this.streams&&this.streams.forEach(e=>{this.addStream(e)}),this._pc.ontrack=e=>{this._onTrack(e)},this._debug("initial negotiation"),this._needsNegotiation(),this._onFinishBound=()=>{this._onFinish()},this.once("finish",this._onFinishBound)}get bufferSize(){return this._channel&&this._channel.bufferedAmount||0}get connected(){return this._connected&&"open"===this._channel.readyState}address(){return{port:this.localPort,family:this.localFamily,address:this.localAddress}}signal(e){if(!this.destroying){if(this.destroyed)throw c(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(()=>{this.destroyed||(this._pendingCandidates.forEach(e=>{this._addIceCandidate(e)}),this._pendingCandidates=[],"offer"===this._pc.remoteDescription.type&&this._createAnswer())}).catch(e=>{this.destroy(c(e,"ERR_SET_REMOTE_DESCRIPTION"))}),e.sdp||e.candidate||e.renegotiate||e.transceiverRequest||this.destroy(c(new Error("signal() called with invalid signal data"),"ERR_SIGNALING"))}}_addIceCandidate(e){const t=new this._wrtc.RTCIceCandidate(e);this._pc.addIceCandidate(t).catch(e=>{!t.address||t.address.endsWith(".local")?p("Ignoring unsupported ICE candidate."):this.destroy(c(e,"ERR_ADD_ICE_CANDIDATE"))})}send(e){if(!this.destroying){if(this.destroyed)throw c(new Error("cannot send after peer is destroyed"),"ERR_DESTROYED");this._channel.send(e)}}addTransceiver(e,t){if(!this.destroying){if(this.destroyed)throw c(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(n){this.destroy(c(n,"ERR_ADD_TRANSCEIVER"))}else this.emit("signal",{type:"transceiverRequest",transceiverRequest:{kind:e,init:t}})}}addStream(e){if(!this.destroying){if(this.destroyed)throw c(new Error("cannot addStream after peer is destroyed"),"ERR_DESTROYED");this._debug("addStream()"),e.getTracks().forEach(t=>{this.addTrack(t,e)})}}addTrack(e,t){if(this.destroying)return;if(this.destroyed)throw c(new Error("cannot addTrack after peer is destroyed"),"ERR_DESTROYED");this._debug("addTrack()");const n=this._senderMap.get(e)||new Map;let r=n.get(t);if(r)throw r.removed?c(new Error("Track has been removed. You should enable/disable tracks that you want to re-add."),"ERR_SENDER_REMOVED"):c(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()}replaceTrack(e,t,n){if(this.destroying)return;if(this.destroyed)throw c(new Error("cannot replaceTrack after peer is destroyed"),"ERR_DESTROYED");this._debug("replaceTrack()");const r=this._senderMap.get(e),i=r?r.get(n):null;if(!i)throw c(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(c(new Error("replaceTrack is not supported in this browser"),"ERR_UNSUPPORTED_REPLACETRACK"))}removeTrack(e,t){if(this.destroying)return;if(this.destroyed)throw c(new Error("cannot removeTrack after peer is destroyed"),"ERR_DESTROYED");this._debug("removeSender()");const n=this._senderMap.get(e),r=n?n.get(t):null;if(!r)throw c(new Error("Cannot remove track that was never added."),"ERR_TRACK_NOT_ADDED");try{r.removed=!0,this._pc.removeTrack(r)}catch(i){"NS_ERROR_UNEXPECTED"===i.name?this._sendersAwaitingStable.push(r):this.destroy(c(i,"ERR_REMOVE_TRACK"))}this._needsNegotiation()}removeStream(e){if(!this.destroying){if(this.destroyed)throw c(new Error("cannot removeStream after peer is destroyed"),"ERR_DESTROYED");this._debug("removeSenders()"),e.getTracks().forEach(t=>{this.removeTrack(t,e)})}}_needsNegotiation(){this._debug("_needsNegotiation"),this._batchedNegotiation||(this._batchedNegotiation=!0,a(()=>{this._batchedNegotiation=!1,this.initiator||!this._firstNegotiation?(this._debug("starting batched negotiation"),this.negotiate()):this._debug("non-initiator initial negotiation request discarded"),this._firstNegotiation=!1}))}negotiate(){if(!this.destroying){if(this.destroyed)throw c(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(()=>{this._createOffer()},0)):this._isNegotiating?(this._queuedNegotiation=!0,this._debug("already negotiating, queueing")):(this._debug("requesting negotiation from initiator"),this.emit("signal",{type:"renegotiate",renegotiate:!0})),this._isNegotiating=!0}}destroy(e){this._destroy(e,()=>{})}_destroy(e,t){this.destroyed||this.destroying||(this.destroying=!0,this._debug("destroying (error: %s)",e&&(e.message||e)),a(()=>{if(this.destroyed=!0,this.destroying=!1,this._debug("destroy (error: %s)",e&&(e.message||e)),this.readable=this.writable=!1,this._readableState.ended||this.push(null),this._writableState.finished||this.end(),this._connected=!1,this._pcReady=!1,this._channelReady=!1,this._remoteTracks=null,this._remoteStreams=null,this._senderMap=null,clearInterval(this._closingInterval),this._closingInterval=null,clearInterval(this._interval),this._interval=null,this._chunk=null,this._cb=null,this._onFinishBound&&this.removeListener("finish",this._onFinishBound),this._onFinishBound=null,this._channel){try{this._channel.close()}catch(e){}this._channel.onmessage=null,this._channel.onopen=null,this._channel.onclose=null,this._channel.onerror=null}if(this._pc){try{this._pc.close()}catch(e){}this._pc.oniceconnectionstatechange=null,this._pc.onicegatheringstatechange=null,this._pc.onsignalingstatechange=null,this._pc.onicecandidate=null,this._pc.ontrack=null,this._pc.ondatachannel=null}this._pc=null,this._channel=null,e&&this.emit("error",e),this.emit("close"),t()}))}_setupData(e){if(!e.channel)return this.destroy(c(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=u),this.channelName=this._channel.label,this._channel.onmessage=e=>{this._onChannelMessage(e)},this._channel.onbufferedamountlow=()=>{this._onChannelBufferedAmountLow()},this._channel.onopen=()=>{this._onChannelOpen()},this._channel.onclose=()=>{this._onChannelClose()},this._channel.onerror=e=>{const t=e.error instanceof Error?e.error:new Error(`Datachannel error: ${e.message} ${e.filename}:${e.lineno}:${e.colno}`);this.destroy(c(t,"ERR_DATA_CHANNEL"))};let t=!1;this._closingInterval=setInterval(()=>{this._channel&&"closing"===this._channel.readyState?(t&&this._onChannelClose(),t=!0):t=!1},d)}_read(){}_write(e,t,n){if(this.destroyed)return n(c(new Error("cannot write after peer is destroyed"),"ERR_DATA_CHANNEL"));if(this._connected){try{this.send(e)}catch(r){return this.destroy(c(r,"ERR_DATA_CHANNEL"))}this._channel.bufferedAmount>u?(this._debug("start backpressure: bufferedAmount %d",this._channel.bufferedAmount),this._cb=n):n(null)}else this._debug("write before connect"),this._chunk=e,this._cb=n}_onFinish(){if(this.destroyed)return;const e=()=>{setTimeout(()=>this.destroy(),1e3)};this._connected?e():this.once("connect",e)}_startIceCompleteTimeout(){this.destroyed||this._iceCompleteTimer||(this._debug("started iceComplete timeout"),this._iceCompleteTimer=setTimeout(()=>{this._iceComplete||(this._iceComplete=!0,this._debug("iceComplete timeout completed"),this.emit("iceTimeout"),this.emit("_iceComplete"))},this.iceCompleteTimeout))}_createOffer(){this.destroyed||this._pc.createOffer(this.offerOptions).then(e=>{if(this.destroyed)return;this.trickle||this.allowHalfTrickle||(e.sdp=l(e.sdp)),e.sdp=this.sdpTransform(e.sdp);const t=()=>{if(this.destroyed)return;const t=this._pc.localDescription||e;this._debug("signal"),this.emit("signal",{type:t.type,sdp:t.sdp})},n=()=>{this._debug("createOffer success"),this.destroyed||(this.trickle||this._iceComplete?t():this.once("_iceComplete",t))},r=e=>{this.destroy(c(e,"ERR_SET_LOCAL_DESCRIPTION"))};this._pc.setLocalDescription(e).then(n).catch(r)}).catch(e=>{this.destroy(c(e,"ERR_CREATE_OFFER"))})}_requestMissingTransceivers(){this._pc.getTransceivers&&this._pc.getTransceivers().forEach(e=>{e.mid||!e.sender.track||e.requested||(e.requested=!0,this.addTransceiver(e.sender.track.kind))})}_createAnswer(){this.destroyed||this._pc.createAnswer(this.answerOptions).then(e=>{if(this.destroyed)return;this.trickle||this.allowHalfTrickle||(e.sdp=l(e.sdp)),e.sdp=this.sdpTransform(e.sdp);const t=()=>{if(this.destroyed)return;const t=this._pc.localDescription||e;this._debug("signal"),this.emit("signal",{type:t.type,sdp:t.sdp}),this.initiator||this._requestMissingTransceivers()},n=()=>{this.destroyed||(this.trickle||this._iceComplete?t():this.once("_iceComplete",t))},r=e=>{this.destroy(c(e,"ERR_SET_LOCAL_DESCRIPTION"))};this._pc.setLocalDescription(e).then(n).catch(r)}).catch(e=>{this.destroy(c(e,"ERR_CREATE_ANSWER"))})}_onConnectionStateChange(){this.destroyed||"failed"===this._pc.connectionState&&this.destroy(c(new Error("Connection failed."),"ERR_CONNECTION_FAILURE"))}_onIceStateChange(){if(this.destroyed)return;const e=this._pc.iceConnectionState,t=this._pc.iceGatheringState;this._debug("iceStateChange (connection: %s) (gathering: %s)",e,t),this.emit("iceStateChange",e,t),"connected"!==e&&"completed"!==e||(this._pcReady=!0,this._maybeReady()),"failed"===e&&this.destroy(c(new Error("Ice connection failed."),"ERR_ICE_CONNECTION_FAILURE")),"closed"===e&&this.destroy(c(new Error("Ice connection closed."),"ERR_ICE_CONNECTION_CLOSED"))}getStats(e){const t=e=>("[object Array]"===Object.prototype.toString.call(e.values)&&e.values.forEach(t=>{Object.assign(e,t)}),e);0===this._pc.getStats.length||this._isReactNativeWebrtc?this._pc.getStats().then(n=>{const r=[];n.forEach(e=>{r.push(t(e))}),e(null,r)},t=>e(t)):this._pc.getStats.length>0?this._pc.getStats(n=>{if(this.destroyed)return;const r=[];n.result().forEach(e=>{const n={};e.names().forEach(t=>{n[t]=e.stat(t)}),n.id=e.id,n.type=e.type,n.timestamp=e.timestamp,r.push(t(n))}),e(null,r)},t=>e(t)):e(null,[])}_maybeReady(){if(this._debug("maybeReady pc %s channel %s",this._pcReady,this._channelReady),this._connected||this._connecting||!this._pcReady||!this._channelReady)return;this._connecting=!0;const e=()=>{this.destroyed||this.getStats((t,n)=>{if(this.destroyed)return;t&&(n=[]);const r={},i={},o={};let s=!1;n.forEach(e=>{"remotecandidate"!==e.type&&"remote-candidate"!==e.type||(r[e.id]=e),"localcandidate"!==e.type&&"local-candidate"!==e.type||(i[e.id]=e),"candidatepair"!==e.type&&"candidate-pair"!==e.type||(o[e.id]=e)});const a=e=>{s=!0;let t=i[e.localCandidateId];t&&(t.ip||t.address)?(this.localAddress=t.ip||t.address,this.localPort=Number(t.port)):t&&t.ipAddress?(this.localAddress=t.ipAddress,this.localPort=Number(t.portNumber)):"string"===typeof e.googLocalAddress&&(t=e.googLocalAddress.split(":"),this.localAddress=t[0],this.localPort=Number(t[1])),this.localAddress&&(this.localFamily=this.localAddress.includes(":")?"IPv6":"IPv4");let n=r[e.remoteCandidateId];n&&(n.ip||n.address)?(this.remoteAddress=n.ip||n.address,this.remotePort=Number(n.port)):n&&n.ipAddress?(this.remoteAddress=n.ipAddress,this.remotePort=Number(n.portNumber)):"string"===typeof e.googRemoteAddress&&(n=e.googRemoteAddress.split(":"),this.remoteAddress=n[0],this.remotePort=Number(n[1])),this.remoteAddress&&(this.remoteFamily=this.remoteAddress.includes(":")?"IPv6":"IPv4"),this._debug("connect local: %s:%s remote: %s:%s",this.localAddress,this.localPort,this.remoteAddress,this.remotePort)};if(n.forEach(e=>{"transport"===e.type&&e.selectedCandidatePairId&&a(o[e.selectedCandidatePairId]),("googCandidatePair"===e.type&&"true"===e.googActiveConnection||("candidatepair"===e.type||"candidate-pair"===e.type)&&e.selected)&&a(e)}),s||Object.keys(o).length&&!Object.keys(i).length){if(this._connecting=!1,this._connected=!0,this._chunk){try{this.send(this._chunk)}catch(t){return this.destroy(c(t,"ERR_DATA_CHANNEL"))}this._chunk=null,this._debug('sent chunk from "write before connect"');const e=this._cb;this._cb=null,e(null)}"number"!==typeof this._channel.bufferedAmountLowThreshold&&(this._interval=setInterval(()=>this._onInterval(),150),this._interval.unref&&this._interval.unref()),this._debug("connect"),this.emit("connect")}else setTimeout(e,100)})};e()}_onInterval(){!this._cb||!this._channel||this._channel.bufferedAmount>u||this._onChannelBufferedAmountLow()}_onSignalingStateChange(){this.destroyed||("stable"===this._pc.signalingState&&(this._isNegotiating=!1,this._debug("flushing sender queue",this._sendersAwaitingStable),this._sendersAwaitingStable.forEach(e=>{this._pc.removeTrack(e),this._queuedNegotiation=!0}),this._sendersAwaitingStable=[],this._queuedNegotiation?(this._debug("flushing negotiation queue"),this._queuedNegotiation=!1,this._needsNegotiation()):(this._debug("negotiated"),this.emit("negotiated"))),this._debug("signalingStateChange %s",this._pc.signalingState),this.emit("signalingStateChange",this._pc.signalingState))}_onIceCandidate(e){this.destroyed||(e.candidate&&this.trickle?this.emit("signal",{type:"candidate",candidate:{candidate:e.candidate.candidate,sdpMLineIndex:e.candidate.sdpMLineIndex,sdpMid:e.candidate.sdpMid}}):e.candidate||this._iceComplete||(this._iceComplete=!0,this.emit("_iceComplete")),e.candidate&&this._startIceCompleteTimeout())}_onChannelMessage(e){if(this.destroyed)return;let t=e.data;t instanceof ArrayBuffer&&(t=h.from(t)),this.push(t)}_onChannelBufferedAmountLow(){if(this.destroyed||!this._cb)return;this._debug("ending backpressure: bufferedAmount %d",this._channel.bufferedAmount);const e=this._cb;this._cb=null,e(null)}_onChannelOpen(){this._connected||this.destroyed||(this._debug("on channel open"),this._channelReady=!0,this._maybeReady())}_onChannelClose(){this.destroyed||(this._debug("on channel close"),this.destroy())}_onTrack(e){this.destroyed||e.streams.forEach(t=>{this._debug("on track"),this.emit("track",e.track,t),this._remoteTracks.push({track:e.track,stream:t}),this._remoteStreams.some(e=>e.id===t.id)||(this._remoteStreams.push(t),a(()=>{this._debug("on stream"),this.emit("stream",t)}))})}_debug(){const e=[].slice.call(arguments);e[0]="["+this._id+"] "+e[0],r.apply(null,e)}}g.WEBRTC_SUPPORT=!!i(),g.config={iceServers:[{urls:["stun:stun.l.google.com:19302","stun:global.stun.twilio.com:3478"]}],sdpSemantics:"unified-plan"},g.channelConfig={},e.exports=g},"06cf":function(e,t,n){var r=n("83ab"),i=n("d1e7"),o=n("5c6c"),s=n("fc6a"),a=n("a04b"),c=n("5135"),h=n("0cfb"),u=Object.getOwnPropertyDescriptor;t.f=r?u:function(e,t){if(e=s(e),t=a(t),h)try{return u(e,t)}catch(n){}if(c(e,t))return o(!i.f.call(e,t),e[t])}},"0774":function(e,t,n){var r=n("42a7"),i="123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";e.exports=r(i)},"07c6":function(e,t){e.exports=function(){throw new Error("Readable.from is not available in the browser")}},"0809":function(e,t,n){(function(t){/*! bittorrent-protocol. MIT License. WebTorrent LLC <https://webtorrent.io/opensource> */
const r=n("d05a"),i=n("8fe2"),o=n("d329"),s=n("34eb")("bittorrent-protocol"),a=n("11dc"),c=n("7b03"),h=n("e372"),u=4e5,f=55e3,d=2e4,l=1e3,p=t.from("BitTorrent protocol"),g=t.from([0,0,0,0]),_=t.from([0,0,0,1,0]),y=t.from([0,0,0,1,1]),m=t.from([0,0,0,1,2]),b=t.from([0,0,0,1,3]),w=t.alloc(d,255),v=[0,0,0,0,0,0,0,0],E=[0,0,0,3,9,0,0];class T{constructor(e,t,n,r){this.piece=e,this.offset=t,this.length=n,this.callback=r}}class R extends h.Duplex{constructor(){super(),this._debugId=a(4).toString("hex"),this._debug("new wire"),this.peerId=null,this.peerIdBuffer=null,this.type=null,this.amChoking=!0,this.amInterested=!1,this.peerChoking=!0,this.peerInterested=!1,this.peerPieces=new o(0,{grow:u}),this.peerExtensions={},this.requests=[],this.peerRequests=[],this.extendedMapping={},this.peerExtendedMapping={},this.extendedHandshake={},this.peerExtendedHandshake={},this._ext={},this._nextExt=1,this.uploaded=0,this.downloaded=0,this.uploadSpeed=c(),this.downloadSpeed=c(),this._keepAliveInterval=null,this._timeout=null,this._timeoutMs=0,this._timeoutExpiresAt=null,this.destroyed=!1,this._finished=!1,this._parserSize=0,this._parser=null,this._buffer=[],this._bufferSize=0,this._fakeDataInterval=null,this.once("finish",()=>this._onFinish()),this._parseHandshake()}setKeepAlive(e){this._debug("setKeepAlive %s",e),clearInterval(this._keepAliveInterval),!1!==e&&(this._keepAliveInterval=setInterval(()=>{this.keepAlive()},f))}setFakeData(e){this._debug("setFakeData %s",e),clearInterval(this._fakeDataInterval),!1!==e&&(this._fakeDataInterval=setInterval(this.sendFakeData.bind(this),l))}setTimeout(e,t){this._debug("setTimeout ms=%d unref=%s",e,t),this._timeoutMs=e,this._timeoutUnref=!!t,this._resetTimeout(!0)}destroy(){this.destroyed||(this.destroyed=!0,this._debug("destroy"),this.emit("close"),this.end())}end(...e){this._debug("end"),this._onUninterested(),this._onChoke(),super.end(...e)}use(e){const t=e.prototype.name;if(!t)throw new Error('Extension class requires a "name" property on the prototype');this._debug("use extension.name=%s",t);const n=this._nextExt,r=new e(this);function i(){}"function"!==typeof r.onHandshake&&(r.onHandshake=i),"function"!==typeof r.onExtendedHandshake&&(r.onExtendedHandshake=i),"function"!==typeof r.onMessage&&(r.onMessage=i),this.extendedMapping[n]=t,this._ext[t]=r,this[t]=r,this._nextExt+=1}keepAlive(){this._debug("keep-alive"),this._push(g)}sendFakeData(){this._debug("fake-data"),this._message(13,[],w),this.uploaded+=w.length,this.uploadSpeed(w.length),this.emit("upload",w.length)}handshake(e,n,r){let i,o;if("string"===typeof e?(e=e.toLowerCase(),i=t.from(e,"hex")):(i=e,e=i.toString("hex")),"string"===typeof n?o=t.from(n,"hex"):(o=n,n=o.toString("hex")),20!==i.length||20!==o.length)throw new Error("infoHash and peerId MUST have length 20");this._debug("handshake i=%s p=%s exts=%o",e,n,r);const s=t.from(v);s[5]|=16,r&&r.dht&&(s[7]|=1),this._push(t.concat([p,s,i,o])),this._handshakeSent=!0,this.peerExtensions.extended&&!this._extendedHandshakeSent&&this._sendExtendedHandshake()}_sendExtendedHandshake(){const e=Object.assign({},this.extendedHandshake);e.m={};for(const t in this.extendedMapping){const n=this.extendedMapping[t];e.m[n]=Number(t)}this.extended(0,i.encode(e)),this._extendedHandshakeSent=!0}choke(){if(!this.amChoking){this.amChoking=!0,this._debug("choke");while(this.peerRequests.length)this.peerRequests.pop();this._push(_)}}unchoke(){this.amChoking&&(this.amChoking=!1,this._debug("unchoke"),this._push(y))}interested(){this.amInterested||(this.amInterested=!0,this._debug("interested"),this._push(m))}uninterested(){this.amInterested&&(this.amInterested=!1,this._debug("uninterested"),this._push(b))}have(e){this._debug("have %d",e),this._message(4,[e],null)}bitfield(e){this._debug("bitfield"),t.isBuffer(e)||(e=e.buffer),this._message(5,[],e)}request(e,t,n,r){return r||(r=()=>{}),this._finished?r(new Error("wire is closed")):this.peerChoking?r(new Error("peer is choking")):(this._debug("request index=%d offset=%d length=%d",e,t,n),this.requests.push(new T(e,t,n,r)),this._timeout||this._resetTimeout(!0),void this._message(6,[e,t,n],null))}piece(e,t,n){this._debug("piece index=%d offset=%d",e,t),this._message(7,[e,t],n),this.uploaded+=n.length,this.uploadSpeed(n.length),this.emit("upload",n.length)}cancel(e,t,n){this._debug("cancel index=%d offset=%d length=%d",e,t,n),this._callback(this._pull(this.requests,e,t,n),new Error("request was cancelled"),null),this._message(8,[e,t,n],null)}port(e){this._debug("port %d",e);const n=t.from(E);n.writeUInt16BE(e,5),this._push(n)}extended(e,n){if(this._debug("extended ext=%s",e),"string"===typeof e&&this.peerExtendedMapping[e]&&(e=this.peerExtendedMapping[e]),"number"!==typeof e)throw new Error("Unrecognized extension: "+e);{const r=t.from([e]),o=t.isBuffer(n)?n:i.encode(n);this._message(20,[],t.concat([r,o]))}}_read(){}_message(e,n,r){const i=r?r.length:0,o=t.allocUnsafe(5+4*n.length);o.writeUInt32BE(o.length+i-4,0),o[4]=e;for(let t=0;t<n.length;t++)o.writeUInt32BE(n[t],5+4*t);this._push(o),r&&this._push(r)}_push(e){if(!this._finished)return this.push(e)}_onKeepAlive(){this._debug("got keep-alive"),this.emit("keep-alive")}_onFakeData(e){this._debug("got fake-data"),this.downloaded+=e.length,this.downloadSpeed(e.length),this.emit("download",e.length)}_onHandshake(e,t,n){const r=e.toString("hex"),i=t.toString("hex");let o;for(o in this._debug("got handshake i=%s p=%s exts=%o",r,i,n),this.peerId=i,this.peerIdBuffer=t,this.peerExtensions=n,this.emit("handshake",r,i,n),this._ext)this._ext[o].onHandshake(r,i,n);n.extended&&this._handshakeSent&&!this._extendedHandshakeSent&&this._sendExtendedHandshake()}_onChoke(){this.peerChoking=!0,this._debug("got choke"),this.emit("choke");while(this.requests.length)this._callback(this.requests.pop(),new Error("peer is choking"),null)}_onUnchoke(){this.peerChoking=!1,this._debug("got unchoke"),this.emit("unchoke")}_onInterested(){this.peerInterested=!0,this._debug("got interested"),this.emit("interested")}_onUninterested(){this.peerInterested=!1,this._debug("got uninterested"),this.emit("uninterested")}_onHave(e){this.peerPieces.get(e)||(this._debug("got have %d",e),this.peerPieces.set(e,!0),this.emit("have",e))}_onBitField(e){this.peerPieces=new o(e),this._debug("got bitfield"),this.emit("bitfield",this.peerPieces)}_onRequest(e,t,n){if(this.amChoking)return;this._debug("got request index=%d offset=%d length=%d",e,t,n);const r=(r,o)=>{if(i===this._pull(this.peerRequests,e,t,n))return r?this._debug("error satisfying request index=%d offset=%d length=%d (%s)",e,t,n,r.message):void this.piece(e,t,o)},i=new T(e,t,n,r);this.peerRequests.push(i),this.emit("request",e,t,n,r)}_onPiece(e,t,n){this._debug("got piece index=%d offset=%d",e,t),this._callback(this._pull(this.requests,e,t,n.length),null,n),this.downloaded+=n.length,this.downloadSpeed(n.length),this.emit("download",n.length),this.emit("piece",e,t,n)}_onCancel(e,t,n){this._debug("got cancel index=%d offset=%d length=%d",e,t,n),this._pull(this.peerRequests,e,t,n),this.emit("cancel",e,t,n)}_onPort(e){this._debug("got port %d",e),this.emit("port",e)}_onExtended(e,t){if(0===e){let e,r;try{e=i.decode(t)}catch(n){this._debug("ignoring invalid extended handshake: %s",n.message||n)}if(!e)return;if(this.peerExtendedHandshake=e,"object"===typeof e.m)for(r in e.m)this.peerExtendedMapping[r]=Number(e.m[r].toString());for(r in this._ext)this.peerExtendedMapping[r]&&this._ext[r].onExtendedHandshake(this.peerExtendedHandshake);this._debug("got extended handshake"),this.emit("extended","handshake",this.peerExtendedHandshake)}else this.extendedMapping[e]&&(e=this.extendedMapping[e],this._ext[e]&&this._ext[e].onMessage(t)),this._debug("got extended message ext=%s",e),this.emit("extended",e,t)}_onTimeout(){this._debug("request timed out"),this._callback(this.requests.shift(),new Error("request has timed out"),null),this.emit("timeout")}_write(e,n,r){this._bufferSize+=e.length,this._buffer.push(e);while(this._bufferSize>=this._parserSize){const e=1===this._buffer.length?this._buffer[0]:t.concat(this._buffer,this._bufferSize);this._bufferSize-=this._parserSize,this._buffer=this._bufferSize?[e.slice(this._parserSize)]:[],this._parser(e.slice(0,this._parserSize))}r(null)}_callback(e,t,n){e&&(this._resetTimeout(!this.peerChoking&&!this._finished),e.callback(t,n))}_resetTimeout(e){if(!e||!this._timeoutMs||!this.requests.length)return clearTimeout(this._timeout),this._timeout=null,void(this._timeoutExpiresAt=null);const t=Date.now()+this._timeoutMs;if(this._timeout){if(t-this._timeoutExpiresAt<.05*this._timeoutMs)return;clearTimeout(this._timeout)}this._timeoutExpiresAt=t,this._timeout=setTimeout(()=>this._onTimeout(),this._timeoutMs),this._timeoutUnref&&this._timeout.unref&&this._timeout.unref()}_parse(e,t){this._parserSize=e,this._parser=t}_onMessageLength(e){const t=e.readUInt32BE(0);t>0?this._parse(t,this._onMessage):(this._onKeepAlive(),this._parse(4,this._onMessageLength))}_onMessage(e){switch(this._parse(4,this._onMessageLength),e[0]){case 0:return this._onChoke();case 1:return this._onUnchoke();case 2:return this._onInterested();case 3:return this._onUninterested();case 4:return this._onHave(e.readUInt32BE(1));case 5:return this._onBitField(e.slice(1));case 6:return this._onRequest(e.readUInt32BE(1),e.readUInt32BE(5),e.readUInt32BE(9));case 7:return this._onPiece(e.readUInt32BE(1),e.readUInt32BE(5),e.slice(9));case 8:return this._onCancel(e.readUInt32BE(1),e.readUInt32BE(5),e.readUInt32BE(9));case 9:return this._onPort(e.readUInt16BE(1));case 13:return this._onFakeData(e);case 20:return this._onExtended(e.readUInt8(1),e.slice(2));default:return this._debug("got unknown message"),this.emit("unknownmessage",e)}}_parseHandshake(){this._parse(1,e=>{const t=e.readUInt8(0);this._parse(t+48,e=>{const n=e.slice(0,t);if("BitTorrent protocol"!==n.toString())return this._debug("Error: wire not speaking BitTorrent protocol (%s)",n.toString()),void this.end();e=e.slice(t),this._onHandshake(e.slice(8,28),e.slice(28,48),{dht:!!(1&e[7]),extended:!!(16&e[5])}),this._parse(4,this._onMessageLength)})})}_onFinish(){this._finished=!0,this.push(null);while(this.read());clearInterval(this._keepAliveInterval),clearInterval(this._fakeDataInterval),this._parse(Number.MAX_VALUE,()=>{});while(this.peerRequests.length)this.peerRequests.pop();while(this.requests.length)this._callback(this.requests.pop(),new Error("wire was closed"),null)}_debug(...e){e[0]=`[${this._debugId}] ${e[0]}`,s(...e)}_pull(e,t,n,i){for(let o=0;o<e.length;o++){const s=e[o];if(s.piece===t&&s.offset===n&&s.length===i)return r(e,o),s}return null}}e.exports=R}).call(this,n("b639").Buffer)},"0b25":function(e,t,n){var r=n("a691"),i=n("50c4");e.exports=function(e){if(void 0===e)return 0;var t=r(e),n=i(t);if(t!==n)throw RangeError("Wrong length or index");return n}},"0b42":function(e,t,n){var r=n("861d"),i=n("e8b5"),o=n("b622"),s=o("species");e.exports=function(e){var t;return i(e)&&(t=e.constructor,"function"!=typeof t||t!==Array&&!i(t.prototype)?r(t)&&(t=t[s],null===t&&(t=void 0)):t=void 0),void 0===t?Array:t}},"0cfb":function(e,t,n){var r=n("83ab"),i=n("d039"),o=n("cc12");e.exports=!r&&!i((function(){return 7!=Object.defineProperty(o("div"),"a",{get:function(){return 7}}).a}))},"0d31":function(e,t,n){"use strict";var r=n("ade3"),i=n("3d15"),o=n("faa1"),s=n.n(o),a=n("517b"),c=n("ad2b"),h=n.n(c),u=n("8c32"),f=n("a5a5"),d=n("81e8"),l=n("c4d1");n("5cc6"),n("219c");const p=16,g="AES-CTR";async function _(e){return crypto.subtle.importKey("raw",e,g,!1,["decrypt"])}async function y(e,t,n){const r=Math.floor(n/p),i=n%p,o=b(r),s={name:g,counter:o,length:128};if(i>0){const e=new ArrayBuffer(i);t=m(e,t)}let a=await crypto.subtle.decrypt(s,e,t);return i>0&&(a=a.slice(i)),new Uint8Array(a)}function m(e,t){const n=new Uint8Array(e.byteLength+t.byteLength);return n.set(new Uint8Array(e),0),n.set(new Uint8Array(t),e.byteLength),n.buffer}function b(e){const t=new DataView(new ArrayBuffer(16));for(let n=15;n>=0;--n)t.setUint8(n,e%256),e>>=8;return t.buffer}var w={importSubtleKey:_,decrypt:y},v=n("d1a0"),E=n("5de4"),T=n("b944"),R=n.n(T),S=n("8707");function I(e){const t=S["Buffer"].from(e,"base64"),n=R()(t);return n}function O(e,t,n){const r=1,i=E["i"].asNumber("webseed",r),o={_arc_client:t,propertyId:n};e.urlList=e.urlList.slice(0,i).map(e=>k(e,o)),e.announce=e.announce.map(()=>"wss://tkr.arc.io/announce")}function k(e,t={}){const n=new URL(e);for(const[r,i]of Object.entries(t))n.searchParams.set(r,i);if("https://webseed.arc.io"!==n.origin){const{hostname:e,port:t}=new URL("https://webseed.arc.io");n.hostname=e,n.port=t}return n.href}var A=n("0ecd");class C{constructor(e){this.storeAsync=e,this.mem=[]}async get(e,t,n){if("function"===typeof t)return this.get(e,null,t);const r=(null===t||void 0===t?void 0:t.offset)||0,i=(null===t||void 0===t?void 0:t.length)&&r+t.length,o=this.mem[e];if(o)return n(null,t?o.slice(r,i):o);(await this.storeAsync).get(e,t,n)}async put(e,t,n){this.mem[e]=t,(await this.storeAsync).put(e,t,t=>{this.mem[e]=null,n&&n(t)})}async remove(e,t){(await this.storeAsync).remove(e,t)}async close(e){(await this.storeAsync).close(e)}async destroy(e){(await this.storeAsync).destroy(e)}}var x=C;const N=n("34eb")("arc:p2p-client"),P=(console.log,64);s.a.defaultMaxListeners=1/0;class L{constructor(){Object(r["a"])(this,"nodeId",null),Object(r["a"])(this,"propertyId",null),Object(r["a"])(this,"broker",null),Object(r["a"])(this,"reporter",null),Object(r["a"])(this,"overmindClient",null),Object(r["a"])(this,"_statusReportCount",0),Object(r["a"])(this,"_createdAt",new Date),Object(r["a"])(this,"isViableSeeder",null),Object(r["a"])(this,"isDestroyed",!1),Object(r["a"])(this,"cleanupFns",[]),Object(d["a"])(),this._createTorrentClient()}_createTorrentClient(){if(!h.a.WEBRTC_SUPPORT)throw new Error("No WebRTC support.");this.torrentClient=new h.a({dht:!1,tracker:{trickle:E["i"].isTruthy("trickle",!0),rtcConfig:{iceCandidatePoolSize:3},getAnnounceOpts(){return{numwant:E["i"].asNumber("numwant",10)}}},webSeeds:!0,maxConns:P}).on("error",e=>{N("Error",e),l["a"].captureException(e)})}setNodeId(e){this.nodeId=e}setPropertyId(e){this.propertyId=e}setBroker(e){this.broker=e,this.setBrokerPromise(Promise.resolve(e))}setBrokerPromise(e){this.brokerPromise=e}setReporter(e){this.reporter=e}setOvermindClient(e){this.overmindClient=e}async startTorrentingFile(e,t,n={}){const{fid:r,torrentFileObj:i,cipherKey:o=null}=e;let s;if(n.skipWaitingForBroker){const t=this.brokerPromise.then(t=>t.createStore(e));s=new x(t)}else{const t=await this.brokerPromise;s=await t.createStore(e)}n={maxWebConns:6,store:function(){return s},...n},O(i,t,this.propertyId);let a=this.torrentClient.get(i);if(null!==a){if(a._arc_isLocked)return a;await this.stopTorrentingFile(a)}if(a=await this._addTorrent(r,t,i,n),this.reporter&&this._addDataTransferReportHooks(r,a,t),o){const e=await w.importSubtleKey(o);a._arc_decrypt=(t,n)=>{const r=n*a.pieceLength;return w.decrypt(e,t,r)}}return a}_addTorrent(e,t,n,r){const i=this.torrentClient.add(n,r);i.on("upload",Object(a["a"])(()=>{const{uploaded:t,uploadSpeed:n}=i;N(`fid ${e} uploaded ${t} @ ${n/1e3} kBps`)},500)).on("download",Object(a["a"])(()=>{const{downloaded:t,downloadSpeed:n}=i;N(`fid ${e} downloaded ${t} @ ${n/1e3} kBps`)},500)).on("wire",(e,t)=>{e.once("download",()=>{const t="webSeed"===e.type?"http":"p2p";o.markOnce(t+"_1st_byte")})}).on("peer",e=>{}).on("invalidPeer",e=>{}).on("noPeers",e=>{o.markOnce("no_peers")}).on("error",t=>{N(`fid ${e} torrent error`,t),l["a"].captureException(t)}).on("warning",t=>{N(`fid ${e} torrent warning: ${t}`),/Cannot create so many PeerConnections/.test(t)||/failed verification/.test(t)}),i._arc_fid=e,i._arc_client=t,i._arc_isLocked=t!==f["p"];const o=new v["b"]({id:"torrent_"+e,enabled:t!==f["p"]});return o.mark("add"),N("Torrent",e,i,r),new Promise(e=>{i.once("ready",()=>e(i))})}_addDataTransferReportHooks(e,t,n){const{reporter:r}=this;t.on("wire",i=>{if("webSeed"===i.type)return;t._rechoke();const o=t.client.peerId,s=t._peers[i.peerId].conn.channelName;function a(){r.reportDataTransfer(s,i.type,e,o,i.peerId,i.uploaded,i.downloaded,n)}i.on("upload",a),i.on("download",a),i.once("close",()=>r.closeDataTransfer(s))})}async stopTorrentingFile(e){return new Promise(t=>{this.torrentClient.remove(e,t)})}async getProxiedFile(e,t,n){const r=await this.startTorrentingFile(e,t,n),o=Object.values(r._peers).find(e=>"webSeed"===e.type);if(o&&o.conn&&!o.conn._isMonkeyPatched){const{conn:e}=o;e._isMonkeyPatched=!0,e.httpRequest=(()=>{const 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required");if(!t.browser&&!e.port)throw new Error("Option `port` is required");this.peerId="string"===typeof e.peerId?e.peerId:e.peerId.toString("hex"),this.infoHash="string"===typeof e.infoHash?e.infoHash.toLowerCase():e.infoHash.toString("hex"),this._port=e.port,this._userAgent=e.userAgent,this.destroyed=!1,this._announce=e.announce||[],this._intervalMs=e.intervalMs||9e5,this._trackerOpts=null,this._dhtAnnouncing=!1,this._dhtTimeout=!1,this._internalDHT=!1,this._onWarning=e=>{this.emit("warning",e)},this._onError=e=>{this.emit("error",e)},this._onDHTPeer=(e,t)=>{t.toString("hex")===this.infoHash&&this.emit("peer",`${e.host}:${e.port}`,"dht")},this._onTrackerPeer=e=>{this.emit("peer",e,"tracker")},this._onTrackerAnnounce=()=>{this.emit("trackerAnnounce")};const n=(e,t)=>{const n=new i(t);return n.on("warning",this._onWarning),n.on("error",this._onError),n.listen(e),this._internalDHT=!0,n};!1===e.tracker?this.tracker=null:e.tracker&&"object"===typeof e.tracker?(this._trackerOpts=Object.assign({},e.tracker),this.tracker=this._createTracker()):this.tracker=this._createTracker(),!1===e.dht||"function"!==typeof i?this.dht=null:e.dht&&"function"===typeof e.dht.addNode?this.dht=e.dht:e.dht&&"object"===typeof e.dht?this.dht=n(e.dhtPort,e.dht):this.dht=n(e.dhtPort),this.dht&&(this.dht.on("peer",this._onDHTPeer),this._dhtAnnounce())}updatePort(e){e!==this._port&&(this._port=e,this.dht&&this._dhtAnnounce(),this.tracker&&(this.tracker.stop(),this.tracker.destroy(()=>{this.tracker=this._createTracker()})))}complete(e){this.tracker&&this.tracker.complete(e)}destroy(e){if(this.destroyed)return;this.destroyed=!0,clearTimeout(this._dhtTimeout);const t=[];this.tracker&&(this.tracker.stop(),this.tracker.removeListener("warning",this._onWarning),this.tracker.removeListener("error",this._onError),this.tracker.removeListener("peer",this._onTrackerPeer),this.tracker.removeListener("update",this._onTrackerAnnounce),t.push(e=>{this.tracker.destroy(e)})),this.dht&&this.dht.removeListener("peer",this._onDHTPeer),this._internalDHT&&(this.dht.removeListener("warning",this._onWarning),this.dht.removeListener("error",this._onError),t.push(e=>{this.dht.destroy(e)})),s(t,e),this.dht=null,this.tracker=null,this._announce=null}_createTracker(){const e=Object.assign({},this._trackerOpts,{infoHash:this.infoHash,announce:this._announce,peerId:this.peerId,port:this._port,userAgent:this._userAgent}),t=new a(e);return t.on("warning",this._onWarning),t.on("error",this._onError),t.on("peer",this._onTrackerPeer),t.on("update",this._onTrackerAnnounce),t.setInterval(this._intervalMs),t.start(),t}_dhtAnnounce(){this._dhtAnnouncing||(r("dht announce"),this._dhtAnnouncing=!0,clearTimeout(this._dhtTimeout),this.dht.announce(this.infoHash,this._port,e=>{this._dhtAnnouncing=!1,r("dht announce complete"),e&&this.emit("warning",e),this.emit("dhtAnnounce"),this.destroyed||(this._dhtTimeout=setTimeout(()=>{this._dhtAnnounce()},this._intervalMs+Math.floor(Math.random()*this._intervalMs/5)),this._dhtTimeout.unref&&this._dhtTimeout.unref())}))}}e.exports=c}).call(this,n("4362"))},"182d":function(e,t,n){var r=n("f8cd");e.exports=function(e,t){var n=r(e);if(n%t)throw RangeError("Wrong offset");return n}},"190a":function(e,t,n){"use strict";n.d(t,"a",(function(){return d}));var r=n("a5a5"),i=n("8c32"),o=n("a59c"),s=n("5de4"),a=n("5ff7");Object.freeze({FOCUS:"focus",BLUR:"blur",UNLOAD:"unload"});const c=a["a"].NODE_REPORT_MAILBOX_ORIGIN+"/mailbox",h=1e3,u=36e5;class f{constructor(){this.pageActivityDocId=Object(o["a"])(),this.isFocused=!0,this.hasReportedPageUnload=!1,this.xferReports={},this.trackerSocket=null}setNodeId(e){this.myNodeId=e}setPropertyId(e){this.propertyId=e}setPropertySessionId(e){this.propertySessionId=e}setTrackerSocket(e){this.trackerSocket=e}async reportPageFocus(e,t){this.isFocused=!0}async reportPageBlur(e,t){this.isFocused=!1,this.hasReportedPageUnload}reportPropertySessionOnUnload(){this.hasReportedPageUnload=!0;const e={nodeId:this.myNodeId,propertyId:this.propertyId,propertySessionId:this.propertySessionId,origins:[location.origin],status:"close"};this._reportOnUnload(r["m"],e)}async reportDataTransfer(e,t,n,i,o,s,a,c){e in this.xferReports||(this.xferReports[e]={writes:[],transferCreatedAt:Date.now(),sentAt:null,flushTimeoutId:null,index:0});const f=this.xferReports[e],d={transferId:e,myNodeId:this.myNodeId,propertyId:this.propertyId,numBytesDownloaded:a,numBytesUploaded:s,fid:n,myPeerId:i,peerPeerId:o,connectionType:t,arcClient:c,index:f.index,transferCreatedAt:f.transferCreatedAt,createdAt:Date.now()};f.writes.splice(0),f.writes.push(d);const l=n===r["a"],p=l?u:h;this._canSendXferReport(f,p)&&this._sendXferReport(f),l||(clearTimeout(f.flushTimeoutId),f.flushTimeoutId=setTimeout(()=>{this._sendXferReport(f)},2e3))}_canSendXferReport(e,t=h){const n=e.sentAt,r=!n||new Date-n>t;return r}async _sendXferReport(e){const t=e.writes.splice(0);if(t.length)if(e.index++,e.sentAt=new Date,this.trackerSocket.readyState===WebSocket.OPEN){const e=JSON.stringify({action:"transferReport",transfers:t});this.trackerSocket.send(e)}else await this._sendRequest(r["o"],"POST",{transfers:t})}_getPendingXferReports(){const e=[];for(const t of Object.values(this.xferReports)){const n=t.writes.splice(0);e.push(...n)}return 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charset=UTF-8"),n.send(JSON.stringify(t))}_reportOnUnload_sendBeacon(e,t){const n={type:"text/plain"},r=new Blob([JSON.stringify(t)],n),o=navigator.sendBeacon(e,r);o||Object(i["c"])("navigator.sendBeacon() failed to queue a request. Why?")}async destroy(){clearTimeout(this.flushTimeoutId)}}const d=new f},"19aa":function(e,t){e.exports=function(e,t,n){if(!(e instanceof t))throw TypeError("Incorrect "+(n?n+" ":"")+"invocation");return e}},"1be4":function(e,t,n){var r=n("d066");e.exports=r("document","documentElement")},"1c0b":function(e,t){e.exports=function(e){if("function"!=typeof e)throw TypeError(String(e)+" is not a function");return e}},"1c7e":function(e,t,n){var r=n("b622"),i=r("iterator"),o=!1;try{var s=0,a={next:function(){return{done:!!s++}},return:function(){o=!0}};a[i]=function(){return this},Array.from(a,(function(){throw 2}))}catch(c){}e.exports=function(e,t){if(!t&&!o)return!1;var n=!1;try{var r={};r[i]=function(){return{next:function(){return{done:n=!0}}}},e(r)}catch(c){}return n}},"1d80":function(e,t){e.exports=function(e){if(void 0==e)throw TypeError("Can't call method on "+e);return e}},"1e48":function(e,t,n){(function(e){t.DEFAULT_ANNOUNCE_PEERS=50,t.MAX_ANNOUNCE_PEERS=82,t.binaryToHex=t=>("string"!==typeof t&&(t=String(t)),e.from(t,"binary").toString("hex")),t.hexToBinary=t=>("string"!==typeof t&&(t=String(t)),e.from(t,"hex").toString("binary"));const r=n(3);Object.assign(t,r)}).call(this,n("b639").Buffer)},"1f4f":function(e,t,n){const r=n("34eb")("bittorrent-tracker:websocket-tracker"),i=n("051a"),o=n("11dc"),s=n("8fe5"),a=n("1e48"),c=n("8091"),h={},u=1e4,f=18e5,d=12e4,l=5e4,p=1e4,g=/a=ice-options:trickle\s\n/;class _ extends c{constructor(e,t,n){super(e,t),r("new websocket tracker %s",t),this.trickle=void 0!==n.trickle&&n.trickle,this.peers={},this.pendingWrites=[],this.socket=null,this.reconnecting=!1,this.retries=0,this.reconnectTimer=null,this.expectingResponse=!1,this._openSocket()}announce(e){if(this.destroyed||this.reconnecting)return;this.socket.connected||this.socket.once("connect",()=>{while(this.pendingWrites.length){const e=this.pendingWrites.shift();this._send(e)}});const t={action:"announce",info_hash:this.client._infoHashBinary,peer_id:this.client._peerIdBinary},n=Object.assign({},e,t);if(this._trackerId&&(n.trackerid=this._trackerId),"stopped"===e.event||"completed"===e.event)this._send(n);else if(this.trickle){const r=Math.min(e.numwant,10);this._generateTrickleOffers(r,e=>{n.numwant=r,n.offers=e,this._send(n)},e=>{const n=Object.assign({},t);n.offers=[e],n.event="trickle",this._send(n)})}else{const t=Math.min(e.numwant,10);this._generateOffers(t,e=>{n.numwant=t,n.offers=e,this._send(n)})}}scrape(e){if(this.destroyed||this.reconnecting)return;if(!this.socket.connected)return void this.socket.once("connect",()=>{this.scrape(e)});const t=Array.isArray(e.infoHash)&&e.infoHash.length>0?e.infoHash.map(e=>e.toString("binary")):e.infoHash&&e.infoHash.toString("binary")||this.client._infoHashBinary,n={action:"scrape",info_hash:t};this._send(n)}destroy(e=y){if(this.destroyed)return e(null);this.destroyed=!0,clearInterval(this.interval),clearTimeout(this.reconnectTimer);for(const i in this.peers){const e=this.peers[i];clearTimeout(e.trackerTimeout),e.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,h[this.announceUrl]&&(h[this.announceUrl].consumers-=1),h[this.announceUrl].consumers>0)return e();let t=h[this.announceUrl];delete h[this.announceUrl],t.on("error",y),t.once("close",e);let n=null;if(!this.expectingResponse)return r();function r(){n&&(clearTimeout(n),n=null),t.removeListener("data",r),t.destroy(),t=null}n=setTimeout(r,a.DESTROY_TIMEOUT),t.once("data",r)}_openSocket(){this.destroyed=!1,this.peers||(this.peers={}),this._onSocketConnectBound=()=>{this._onSocketConnect()},this._onSocketErrorBound=e=>{this._onSocketError(e)},this._onSocketDataBound=e=>{this._onSocketData(e)},this._onSocketCloseBound=()=>{this._onSocketClose()},this.socket=h[this.announceUrl],this.socket?(h[this.announceUrl].consumers+=1,this.socket.connected&&this._onSocketConnectBound()):(this.socket=h[this.announceUrl]=new s(this.announceUrl),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)}_onSocketConnect(){this.destroyed||this.reconnecting&&(this.reconnecting=!1,this.retries=0,this.announce(this.client._defaultAnnounceOpts()))}_onSocketData(e){if(!this.destroyed){this.expectingResponse=!1;try{e=JSON.parse(e)}catch(t){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: "+e.action))}}_onAnnounceResponse(e){if(e.info_hash!==this.client._infoHashBinary)return void r("ignoring websocket data from %s for %s (looking for %s: reused socket)",this.announceUrl,a.binaryToHex(e.info_hash),this.client.infoHash);if(e.peer_id&&e.peer_id===this.client._peerIdBinary)return;r("received %s from %s for %s",JSON.stringify(e),this.announceUrl,this.client.infoHash);const t=e["failure reason"];if(t)return this.client.emit("warning",new Error(t));const n=e["warning message"];n&&this.client.emit("warning",new Error(n));const i=e.interval||e["min interval"];i&&this.setInterval(1e3*i);const o=e["tracker id"];if(o&&(this._trackerId=o),null!=e.complete){const t=Object.assign({},e,{announce:this.announceUrl,infoHash:a.binaryToHex(e.info_hash)});this.client.emit("update",t)}let s;if(e.offer&&e.peer_id){const t=a.binaryToHex(e.offer_id),{sdp:n,candidate:i}=e.offer,o=g.test(n);if(n){r("creating peer (from remote offer)"),s=this._createPeer({trickle:this.trickle}),s.id=a.binaryToHex(e.peer_id);const n=s.trickle?"on":"once";s[n]("signal",t=>{const n={action:"announce",info_hash:this.client._infoHashBinary,peer_id:this.client._peerIdBinary,to_peer_id:e.peer_id,answer:t,offer_id:e.offer_id};this._trackerId&&(n.trackerid=this._trackerId),this._send(n)}),o&&(this.peers[t]=s),this.client.emit("peer",s)}else s=this.peers[t],s&&this._setPeerTrickleTimeout(s,t);(n||i)&&s&&!s.destroyed&&s.signal(e.offer)}if(e.answer&&e.peer_id){const t=a.binaryToHex(e.offer_id);if(s=this.peers[t],s){s.id=a.binaryToHex(e.peer_id),s.destroyed||s.signal(e.answer),clearTimeout(s.trackerTimeout),s.trackerTimeout=null;const{sdp:n,candidate:r}=e.answer,i=g.test(n);n&&this.client.emit("peer",s),i||r?this._setPeerTrickleTimeout(s,t):delete this.peers[t]}else r("got unexpected answer: "+JSON.stringify(e.answer))}}_onScrapeResponse(e){e=e.files||{};const t=Object.keys(e);0!==t.length?t.forEach(t=>{const n=Object.assign(e[t],{announce:this.announceUrl,infoHash:a.binaryToHex(t)});this.client.emit("scrape",n)}):this.client.emit("warning",new Error("invalid scrape response"))}_onSocketClose(){this.destroyed||(this.destroy(),this._startReconnectTimer())}_onSocketError(e){this.destroyed||(this.destroy(),this.client.emit("warning",e),this._startReconnectTimer())}_startReconnectTimer(){const e=Math.floor(Math.random()*d)+Math.min(Math.pow(2,this.retries)*u,f);this.reconnecting=!0,clearTimeout(this.reconnectTimer),this.reconnectTimer=setTimeout(()=>{this.retries++,this._openSocket()},e),this.reconnectTimer.unref&&this.reconnectTimer.unref(),r("reconnecting socket in %s ms",e)}_send(e){if(this.destroyed)return;if(!this.socket.connected)return void this.pendingWrites.push(e);this.expectingResponse=!0;const t=JSON.stringify(e);r("send %s",t),this.socket.send(t)}_generateOffers(e,t){const n=this,i=[];r("generating %s offers",e);for(let r=0;r<e;++r)s();function s(){const e=o(20).toString("hex");r("creating peer (from _generateOffers)");const t=n.peers[e]=n._createPeer({initiator:!0});t.once("signal",t=>{i.push({offer:t,offer_id:a.hexToBinary(e)}),c()}),t.trackerTimeout=setTimeout(()=>{r("tracker timeout: destroying peer"),t.trackerTimeout=null,delete n.peers[e],t.destroy()},l),t.trackerTimeout.unref&&t.trackerTimeout.unref()}function c(){i.length===e&&(r("generated %s offers",e),t(i))}c()}_generateTrickleOffers(e,t,n){const i=this,s=[],c=[];let h=!1;r("generating %s trickle offers",e);for(let r=0;r<e;++r)u();function u(){const e=o(20).toString("hex"),t=a.hexToBinary(e);r("creating peer (from _generateTrickleOffers)");const u={initiator:!0,trickle:!0},d=i.peers[e]=i._createPeer(u);d.on("signal",e=>{const r={offer:e,offer_id:t};e.sdp?(s.push(r),f()):h?n(r):c.push(r)}),d.trackerTimeout=setTimeout(()=>{r("tracker timeout: destroying peer"),d.trackerTimeout=null,delete i.peers[e],d.destroy()},l),d.trackerTimeout.unref&&d.trackerTimeout.unref()}function f(){s.length===e&&(r("generated %s 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const i=n("8fe2"),o=n("4947"),s=n("3e8f"),a=n("c7ba"),c=n("83cc"),h=n("df7c"),u=n("2a3b");function f(e){if("string"===typeof e&&/^(stream-)?magnet:/.test(e)){const t=c(e);if(!t.infoHash)throw new Error("Invalid torrent identifier");return t}if("string"===typeof e&&(/^[a-f0-9]{40}$/i.test(e)||/^[a-z2-7]{32}$/i.test(e)))return c("magnet:?xt=urn:btih:"+e);if(t.isBuffer(e)&&20===e.length)return c("magnet:?xt=urn:btih:"+e.toString("hex"));if(t.isBuffer(e))return l(e);if(e&&e.infoHash)return e.infoHash=e.infoHash.toLowerCase(),e.announce||(e.announce=[]),"string"===typeof e.announce&&(e.announce=[e.announce]),e.urlList||(e.urlList=[]),e;throw new Error("Invalid torrent identifier")}function d(e,t){let n;if("function"!==typeof t)throw new Error("second argument must be a Function");try{n=f(e)}catch(c){}function i(e){try{n=f(e)}catch(c){return t(c)}n&&n.infoHash?t(null,n):t(new Error("Invalid torrent identifier"))}n&&n.infoHash?r.nextTick(()=>{t(null,n)}):g(e)?o(e,(e,n)=>{if(e)return t(new 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e={uploaded:this.uploaded,downloaded:this.downloaded,left:Math.max(this.length-this.downloaded,0)};return this.client.tracker.getAnnounceOpts&&Object.assign(e,this.client.tracker.getAnnounceOpts()),this._getAnnounceOpts&&Object.assign(e,this._getAnnounceOpts()),e}})),this.discovery=new c({infoHash:this.infoHash,announce:this.announce,peerId:this.client.peerId,dht:!this.private&&this.client.dht,tracker:e,port:this.client.torrentPort,userAgent:$}),this.discovery.on("error",e=>{this._destroy(e)}),this.discovery.on("peer",e=>{"string"===typeof e&&this.done||this.addPeer(e)}),this.discovery.on("trackerAnnounce",()=>{this.emit("trackerAnnounce"),0===this.numPeers&&this.emit("noPeers","tracker")}),this.discovery.on("dhtAnnounce",()=>{this.emit("dhtAnnounce"),0===this.numPeers&&this.emit("noPeers","dht")}),this.discovery.on("warning",e=>{this.emit("warning",e)}),this.info?this._onMetadata(this):this.xs&&this._getMetadataFromServer()}_getMetadataFromServer(){const e=this,t=Array.isArray(this.xs)?this.xs:[this.xs],n=t.map(e=>t=>{r(e,t)});function r(t,n){if(0!==t.indexOf("http://")&&0!==t.indexOf("https://"))return e.emit("warning",new Error("skipping non-http xs param: "+t)),n(null);const r={url:t,method:"GET",headers:{"user-agent":$}};let i;try{i=d.concat(r,o)}catch(Z){return e.emit("warning",new Error("skipping invalid url xs param: "+t)),n(null)}function o(r,i,o){if(e.destroyed)return n(null);if(e.metadata)return n(null);if(r)return e.emit("warning",new Error("http error from xs param: "+t)),n(null);if(200!==i.statusCode)return e.emit("warning",new Error(`non-200 status code ${i.statusCode} from xs param: ${t}`)),n(null);let s;try{s=b(o)}catch(r){}return s?s.infoHash!==e.infoHash?(e.emit("warning",new Error("got torrent file with incorrect info hash from xs param: "+t)),n(null)):(e._onMetadata(s),void n(null)):(e.emit("warning",new Error("got invalid torrent file from xs param: "+t)),n(null))}e._xsRequests.push(i)}y(n)}_onMetadata(e){if(this.metadata||this.destroyed)return;let t;if(this._debug("got metadata"),this._xsRequests.forEach(e=>{e.abort()}),this._xsRequests=[],e&&e.infoHash)t=e;else try{t=b(e)}catch(Z){return this._destroy(Z)}if(this._processParsedTorrent(t),this.metadata=this.torrentFile,this.client.enableWebSeeds&&this.urlList.forEach(e=>{this.addWebSeed(e)}),this._rarityMap=new N(this),this.store=new l(new this._store(this.pieceLength,{torrent:{infoHash:this.infoHash},files:this.files.map(e=>({path:w.join(this.path,e.path),length:e.length,offset:e.offset})),length:this.length,name:this.infoHash})),this.files=this.files.map(e=>new C(this,e)),this.so){const e=A.parse(this.so);this.files.forEach((t,n)=>{e.includes(n)&&this.files[n].select(!0)})}else 0!==this.pieces.length&&this.select(0,this.pieces.length-1,!1);if(this._hashes=this.pieces,this.pieces=this.pieces.map((e,t)=>{const n=t===this.pieces.length-1?this.lastPieceLength:this.pieceLength;return new v(n)}),this._reservations=this.pieces.map(()=>[]),this.bitfield=new o(this.pieces.length),this.wires.forEach(e=>{e.ut_metadata&&e.ut_metadata.setMetadata(this.metadata),this._onWireWithMetadata(e)}),this.skipVerify)this._markAllVerified(),this._onStore();else{const e=e=>{if(e)return this._destroy(e);this._debug("done verifying"),this._onStore()};this._debug("verifying existing torrent data"),this._fileModtimes&&this._store===f?this.getFileModtimes((t,n)=>{if(t)return this._destroy(t);const r=this.files.map((e,t)=>n[t]===this._fileModtimes[t]).every(e=>e);r?(this._markAllVerified(),this._onStore()):this._verifyPieces(e)}):this._verifyPieces(e)}this.emit("metadata")}getFileModtimes(e){const t=[];m(this.files.map((e,n)=>r=>{u.stat(w.join(this.path,e.path),(e,i)=>{if(e&&"ENOENT"!==e.code)return r(e);t[n]=i&&i.mtime.getTime(),r(null)})}),G,n=>{this._debug("done getting file modtimes"),e(n,t)})}_verifyPieces(e){m(this.pieces.map((e,n)=>e=>{if(this.destroyed)return e(new Error("torrent is destroyed"));this.store.get(n,(r,i)=>this.destroyed?e(new Error("torrent is destroyed")):r?t.nextTick(e,null):void R(i,t=>{if(this.destroyed)return e(new Error("torrent is destroyed"));if(t===this._hashes[n]){if(!this.pieces[n])return e(null);this._debug("piece verified %s",n),this._markVerified(n)}else this._debug("piece invalid %s",n);e(null)}))}),G,e)}rescanFiles(e){if(this.destroyed)throw new Error("torrent is destroyed");e||(e=J),this._verifyPieces(t=>{if(t)return this._destroy(t),e(t);this._checkDone(),e(null)})}_markAllVerified(){for(let e=0;e<this.pieces.length;e++)this._markVerified(e)}_markVerified(e){this.pieces[e]=null,this._reservations[e]=null,this.bitfield.set(e,!0)}_onStore(){this.destroyed||(this._debug("on store"),this.ready=!0,this.emit("ready"),this._checkDone(),this._updateSelections())}destroy(e){this._destroy(null,e)}_destroy(e,t){if(this.destroyed)return;this.destroyed=!0,this._debug("destroy"),this.client._remove(this),clearInterval(this._rechokeIntervalId),this._xsRequests.forEach(e=>{e.abort()}),this._rarityMap&&this._rarityMap.destroy();for(const r in this._peers)this.removePeer(r);this.files.forEach(e=>{e instanceof C&&e._destroy()});const n=this._servers.map(e=>t=>{e.destroy(t)});this.discovery&&n.push(e=>{this.discovery.destroy(e)}),this.store&&n.push(e=>{this.store.close(e)}),y(n,t),e&&(0===this.listenerCount("error")?this.client.emit("error",e):this.emit("error",e)),this.emit("close"),this.client=null,this.files=[],this.discovery=null,this.store=null,this._rarityMap=null,this._peers=null,this._servers=null,this._xsRequests=null}addPeer(e){if(this.destroyed)throw new Error("torrent is destroyed");if(!this.infoHash)throw new Error("addPeer() must not be called before the `infoHash` event");if(this.client.blocked){let t;if("string"===typeof e){let r;try{r=i(e)}catch(n){return this._debug("ignoring peer: invalid %s",e),this.emit("invalidPeer",e),!1}t=r[0]}else"string"===typeof e.remoteAddress&&(t=e.remoteAddress);if(t&&this.client.blocked.contains(t))return this._debug("ignoring peer: blocked %s",e),"string"!==typeof e&&e.destroy(),this.emit("blockedPeer",e),!1}const t=!!this._addPeer(e);return t?this.emit("peer",e):this.emit("invalidPeer",e),t}_addPeer(e){if(this.destroyed)return"string"!==typeof e&&e.destroy(),null;if("string"===typeof e&&!this._validAddr(e))return this._debug("ignoring peer: invalid %s",e),null;const t=e&&e.id||e;if(this._peers[t])return this._debug("ignoring peer: duplicate (%s)",t),"string"!==typeof e&&e.destroy(),null;if(this.paused)return this._debug("ignoring peer: torrent is paused"),"string"!==typeof e&&e.destroy(),null;let n;return this._debug("add peer %s",t),n="string"===typeof e?x.createTCPOutgoingPeer(e,this):x.createWebRTCPeer(e,this),this._peers[n.id]=n,this._peersLength+=1,"string"===typeof e&&(this._queue.push(n),this._drain()),n}addWebSeed(e){if(this.destroyed)throw new Error("torrent is destroyed");if(!/^https?:\/\/.+/.test(e))return this.emit("warning",new Error("ignoring invalid web seed: "+e)),void this.emit("invalidPeer",e);if(this._peers[e])return this.emit("warning",new Error("ignoring duplicate web seed: "+e)),void this.emit("invalidPeer",e);this._debug("add web seed %s",e);const t=x.createWebSeedPeer(e,this);this._peers[t.id]=t,this._peersLength+=1,this.emit("peer",e)}_addIncomingPeer(e){return this.destroyed?e.destroy(new Error("torrent is destroyed")):this.paused?e.destroy(new Error("torrent is paused")):(this._debug("add incoming peer %s",e.id),this._peers[e.id]=e,void(this._peersLength+=1))}removePeer(e){const t=e&&e.id||e;e=this._peers[t],e&&(this._debug("removePeer %s",t),delete this._peers[t],this._peersLength-=1,e.destroy(),this._drain())}select(e,t,n,r){if(this.destroyed)throw new Error("torrent is destroyed");if(e<0||t<e||this.pieces.length<=t)throw new Error(`invalid selection ${e} : ${t}`);n=Number(n)||0,this._debug("select %s-%s (priority %s)",e,t,n),this._selections.push({from:e,to:t,offset:0,priority:n,notify:r||J}),this._selections.sort((e,t)=>t.priority-e.priority),this._updateSelections()}deselect(e,t,n){if(this.destroyed)throw new Error("torrent is destroyed");n=Number(n)||0,this._debug("deselect %s-%s (priority %s)",e,t,n);for(let r=0;r<this._selections.length;++r){const i=this._selections[r];if(i.from===e&&i.to===t&&i.priority===n){this._selections.splice(r,1);break}}this._updateSelections()}critical(e,t){if(this.destroyed)throw new Error("torrent is destroyed");this._debug("critical %s-%s",e,t);for(let n=e;n<=t;++n)this._critical[n]=!0;this._updateSelections()}_onWire(e,n){if(this._debug("got wire %s (%s)",e._debugId,n||"Unknown"),e.on("download",e=>{this.destroyed||(this.received+=e,this._downloadSpeed(e),this.client._downloadSpeed(e),this.emit("download",e),this.client.emit("download",e))}),e.on("upload",e=>{this.destroyed||(this.uploaded+=e,this._uploadSpeed(e),this.client._uploadSpeed(e),this.emit("upload",e),this.client.emit("upload",e))}),this.wires.push(e),n){const t=i(n);e.remoteAddress=t[0],e.remotePort=t[1]}this.client.dht&&this.client.dht.listening&&e.on("port",t=>{if(!this.destroyed&&!this.client.dht.destroyed){if(!e.remoteAddress)return this._debug("ignoring PORT from peer with no address");if(0===t||t>65536)return this._debug("ignoring invalid PORT from peer");this._debug("port: %s (from %s)",t,n),this.client.dht.addNode({host:e.remoteAddress,port:t})}}),e.on("timeout",()=>{this._debug("wire timeout (%s)",n),e.destroy()}),e.setTimeout(M,!0),e.setKeepAlive(!0),this.isFake&&e.setFakeData(!0),e.use(O(this.metadata)),e.ut_metadata.on("warning",e=>{this._debug("ut_metadata warning: %s",e.message)}),this.metadata||(e.ut_metadata.on("metadata",e=>{this._debug("got metadata via ut_metadata"),this._onMetadata(e)}),e.ut_metadata.fetch()),"function"!==typeof k||this.private||(e.use(k()),e.ut_pex.on("peer",e=>{this.done||(this._debug("ut_pex: got peer: %s (from %s)",e,n),this.addPeer(e))}),e.ut_pex.on("dropped",e=>{const t=this._peers[e];t&&!t.connected&&(this._debug("ut_pex: dropped peer: %s (from %s)",e,n),this.removePeer(e))}),e.once("close",()=>{e.ut_pex.reset()})),this.emit("wire",e,n),this.metadata&&t.nextTick(()=>{this._onWireWithMetadata(e)})}_onWireWithMetadata(e){let t=null;const n=()=>{this.destroyed||e.destroyed||(this._numQueued>2*(this._numConns-this.numPeers)&&e.amInterested?e.destroy():(t=setTimeout(n,D),t.unref&&t.unref()))};let r;const i=()=>{if(e.peerPieces.buffer.length===this.bitfield.buffer.length){for(r=0;r<this.pieces.length;++r)if(!e.peerPieces.get(r))return;e.isSeeder=!0,e.choke()}};e.on("bitfield",()=>{i(),this._update()}),e.on("have",()=>{i(),this._update()}),e.once("interested",()=>{e.unchoke()}),e.once("close",()=>{clearTimeout(t)}),e.on("choke",()=>{clearTimeout(t),t=setTimeout(n,D),t.unref&&t.unref()}),e.on("unchoke",()=>{clearTimeout(t),this._update()}),e.on("request",(t,n,r,i)=>{if(r>L)return e.destroy();this.pieces[t]||this.store.get(t,{offset:n,length:r},i)}),e.bitfield(this.bitfield),e.uninterested(),e.peerExtensions.dht&&this.client.dht&&this.client.dht.listening&&e.port(this.client.dht.address().port),"webSeed"!==e.type?(t=setTimeout(n,D),t.unref&&t.unref()):e.interested(),e.isSeeder=!1,i()}_updateSelections(){this.ready&&!this.destroyed&&(t.nextTick(()=>{this._gcSelections()}),this._updateInterest(),this._update())}_gcSelections(){for(let e=0;e<this._selections.length;++e){const t=this._selections[e],n=t.offset;while(this.bitfield.get(t.from+t.offset)&&t.from+t.offset<t.to)t.offset+=1;n!==t.offset&&t.notify(),t.to===t.from+t.offset&&(this.bitfield.get(t.from+t.offset)&&(this._selections.splice(e,1),e-=1,t.notify(),this._updateInterest()))}this._selections.length||this.emit("idle")}_updateInterest(){const e=this._amInterested;this._amInterested=!!this._selections.length,this.wires.forEach(e=>{let t=!1;for(let n=0;n<this.pieces.length;++n)if(this.pieces[n]&&e.peerPieces.get(n)){t=!0;break}t?e.interested():e.uninterested()}),e!==this._amInterested&&(this._amInterested?this.emit("interested"):this.emit("uninterested"))}_update(){if(this.destroyed)return;const e=T(this.wires);let t;while(t=e())this._updateWireWrapper(t)}_updateWireWrapper(e){const t=this;"undefined"!==typeof window&&"function"===typeof window.requestIdleCallback?window.requestIdleCallback((function(){t._updateWire(e)}),{timeout:250}):t._updateWire(e)}_updateWire(e){const t=this;if(e.peerChoking)return;if(!e.downloaded)return o();const n=V(e,B);if(e.requests.length>=n)return;const r=V(e,j);function i(t,n,r,i){return o=>o>=t&&o<=n&&!(o in r)&&e.peerPieces.get(o)&&(!i||i(o))}function o(){if(e.requests.length)return;let n=t._selections.length;while(n--){const r=t._selections[n];let o;if("rarest"===t.strategy){const n=r.from+r.offset,s=r.to,a=s-n+1,c={};let h=0;const u=i(n,s,c);while(h<a){if(o=t._rarityMap.getRarestPiece(u),o<0)break;if(t._request(e,o,!1))return;c[o]=!0,h+=1}}else for(o=r.to;o>=r.from+r.offset;--o)if(e.peerPieces.get(o)&&t._request(e,o,!1))return}}function s(){const n=e.downloadSpeed()||1;if(n>U)return()=>!0;const r=Math.max(1,e.requests.length)*v.BLOCK_LENGTH/n;let i=10,o=0;return e=>{if(!i||t.bitfield.get(e))return!0;let s=t.pieces[e].missing;for(;o<t.wires.length;o++){const a=t.wires[o],c=a.downloadSpeed();if(!(c<U)&&(!(c<=n)&&a.peerPieces.get(e)&&!((s-=c*r)>0)))return i--,!1}return!0}}function a(e){let n=e;for(let i=e;i<t._selections.length&&t._selections[i].priority;i++)n=i;const r=t._selections[e];t._selections[e]=t._selections[n],t._selections[n]=r}function c(n){if(e.requests.length>=r)return!0;const o=s();for(let s=0;s<t._selections.length;s++){const c=t._selections[s];let h;if("rarest"===t.strategy){const u=c.from+c.offset,f=c.to,d=f-u+1,l={};let p=0;const g=i(u,f,l,o);while(p<d){if(h=t._rarityMap.getRarestPiece(g),h<0)break;while(t._request(e,h,t._critical[h]||n));if(!(e.requests.length<r))return c.priority&&a(s),!0;l[h]=!0,p++}}else for(h=c.from+c.offset;h<=c.to;h++)if(e.peerPieces.get(h)&&o(h)){while(t._request(e,h,t._critical[h]||n));if(!(e.requests.length<r))return c.priority&&a(s),!0}}return!1}c(!1)||c(!0)}_rechoke(){if(!this.ready)return;this._rechokeOptimisticTime>0?this._rechokeOptimisticTime-=1:this._rechokeOptimisticWire=null;const e=[];this.wires.forEach(t=>{t.isSeeder||t===this._rechokeOptimisticWire||e.push({wire:t,downloadSpeed:t.downloadSpeed(),uploadSpeed:t.uploadSpeed(),salt:Math.random(),isChoked:!0})}),e.sort(r);let t=0,n=0;for(;n<e.length&&t<this._rechokeNumSlots;++n)e[n].isChoked=!1,e[n].wire.peerInterested&&(t+=1);if(!this._rechokeOptimisticWire&&n<e.length&&this._rechokeNumSlots){const t=e.slice(n).filter(e=>e.wire.peerInterested),r=t[K(t.length)];r&&(r.isChoked=!1,this._rechokeOptimisticWire=r.wire,this._rechokeOptimisticTime=H)}function r(e,t){return e.downloadSpeed!==t.downloadSpeed?t.downloadSpeed-e.downloadSpeed:e.uploadSpeed!==t.uploadSpeed?t.uploadSpeed-e.uploadSpeed:e.wire.amChoking!==t.wire.amChoking?e.wire.amChoking?1:-1:e.salt-t.salt}e.forEach(e=>{e.wire.amChoking!==e.isChoked&&(e.isChoked?e.wire.choke():e.wire.unchoke())})}_hotswap(e,t){const n=e.downloadSpeed();if(n<v.BLOCK_LENGTH)return!1;if(!this._reservations[t])return!1;const r=this._reservations[t];if(!r)return!1;let i,o,s=1/0;for(o=0;o<r.length;o++){const t=r[o];if(!t||t===e)continue;const a=t.downloadSpeed();a>=U||(2*a>n||a>s||(i=t,s=a))}if(!i)return!1;for(o=0;o<r.length;o++)r[o]===i&&(r[o]=null);for(o=0;o<i.requests.length;o++){const e=i.requests[o];e.piece===t&&this.pieces[t].cancel(e.offset/v.BLOCK_LENGTH|0)}return this.emit("hotswap",i,e,t),!0}_request(e,n,r){const i=this,o=e.requests.length,s="webSeed"===e.type;if(i.bitfield.get(n))return!1;const a=s?Math.min(X(e,j,i.pieceLength),i.maxWebConns):V(e,j);if(o>=a)return!1;const c=i.pieces[n];let h=s?c.reserveRemaining():c.reserve();if(-1===h&&r&&i._hotswap(e,n)&&(h=s?c.reserveRemaining():c.reserve()),-1===h)return!1;let u=i._reservations[n];u||(u=i._reservations[n]=[]);let f=u.indexOf(null);-1===f&&(f=u.length),u[f]=e;const d=c.chunkOffset(h),l=s?c.chunkLengthRemaining(h):c.chunkLength(h);function p(){t.nextTick(()=>{i._update()})}return e.request(n,d,l,(function t(r,o){if(i.destroyed)return;if(!i.ready)return i.once("ready",()=>{t(r,o)});if(u[f]===e&&(u[f]=null),c!==i.pieces[n])return p();if(r)return i._debug("error getting piece %s (offset: %s length: %s) from %s: %s",n,d,l,`${e.remoteAddress}:${e.remotePort}`,r.message),s?c.cancelRemaining(h):c.cancel(h),void p();if(i._debug("got piece %s (offset: %s length: %s) from %s",n,d,l,`${e.remoteAddress}:${e.remotePort}`),!c.set(h,o,e))return p();const a=c.flush();R(a,e=>{if(!i.destroyed){if(e===i._hashes[n]){if(!i.pieces[n])return;i._debug("piece verified %s",n),i.pieces[n]=null,i._reservations[n]=null,i.bitfield.set(n,!0),i.store.put(n,a),i.wires.forEach(e=>{e.have(n)}),i._checkDone()&&!i.destroyed&&i.discovery.complete()}else i.pieces[n]=new v(c.length),i.emit("warning",new Error(`Piece ${n} failed verification`));p()}})})),!0}_checkDone(){if(this.destroyed)return;this.files.forEach(e=>{if(!e.done){for(let t=e._startPiece;t<=e._endPiece;++t)if(!this.bitfield.get(t))return;e.done=!0,e.emit("done"),this._debug("file done: "+e.name)}});let e=!0;for(let t=0;t<this._selections.length;t++){const n=this._selections[t];for(let t=n.from;t<=n.to;t++)if(!this.bitfield.get(t)){e=!1;break}if(!e)break}return!this.done&&e&&(this.done=!0,this._debug("torrent done: "+this.infoHash),this.emit("done")),this._gcSelections(),e}load(e,t){if(this.destroyed)throw new Error("torrent is destroyed");if(!this.ready)return this.once("ready",()=>{this.load(e,t)});Array.isArray(e)||(e=[e]),t||(t=J);const n=new p(e),r=new s(this.store,this.pieceLength);E(n,r,e=>{if(e)return t(e);this._markAllVerified(),this._checkDone(),t(null)})}createServer(e){if("function"!==typeof P)throw new Error("node.js-only method");if(this.destroyed)throw new Error("torrent is destroyed");const t=new P(this,e);return this._servers.push(t),t}pause(){this.destroyed||(this._debug("pause"),this.paused=!0)}resume(){this.destroyed||(this._debug("resume"),this.paused=!1,this._drain())}_debug(){const e=[].slice.call(arguments);e[0]=`[${this.client._debugId}] [${this._debugId}] ${e[0]}`,a(...e)}_drain(){if(this._debug("_drain numConns %s maxConns %s",this._numConns,this.client.maxConns),"function"!==typeof g.connect||this.destroyed||this.paused||this._numConns>=this.client.maxConns)return;this._debug("drain (%s queued, %s/%s peers)",this._numQueued,this.numPeers,this.client.maxConns);const e=this._queue.shift();if(!e)return;this._debug("tcp connect attempt to %s",e.addr);const t=i(e.addr),n={host:t[0],port:t[1]},r=e.conn=g.connect(n);r.once("connect",()=>{e.onConnect()}),r.once("error",t=>{e.destroy(t)}),e.startConnectTimeout(),r.on("close",()=>{if(this.destroyed)return;if(e.retries>=W.length)return void this._debug("conn %s closed: will not re-add (max %s attempts)",e.addr,W.length);const t=W[e.retries];this._debug("conn %s closed: will re-add to queue in %sms (attempt %s)",e.addr,t,e.retries+1);const n=setTimeout(()=>{const t=this._addPeer(e.addr);t&&(t.retries=e.retries+1)},t);n.unref&&n.unref()})}_validAddr(e){let t;try{t=i(e)}catch(o){return!1}const 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