build

1 files changed, 1 insertions, 11 deletions

diff --git a/webtorrent.min.js b/webtorrent.min.js
index 9346d6b..1607068 100644
--- a/webtorrent.min.js
+++ b/webtorrent.min.js
@@ -1,11 +1 @@
-(function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var t;t="undefined"==typeof window?"undefined"==typeof global?"undefined"==typeof self?this:self:global:window,t.WebTorrent=e()}})(function(){var t=Math.abs,n=Math.pow,r=Math.floor,o=String.fromCharCode,a=Math.ceil,d=Math.max,s=Math.min,l;return function(){function d(s,e,n){function t(o,i){if(!e[o]){if(!s[o]){var l="function"==typeof require&&require;if(!i&&l)return l(o,!0);if(r)return r(o,!0);var c=new Error("Cannot find module '"+o+"'");throw c.code="MODULE_NOT_FOUND",c}var a=e[o]={exports:{}};s[o][0].call(a.exports,function(e){var r=s[o][1][e];return t(r||e)},a,a.exports,d,s,e,n)}return e[o].exports}for(var r="function"==typeof require&&require,o=0;o<n.length;o++)t(n[o]);return t}return d}()({1:[function(e,t){const n=e("debug")("webtorrent:file-stream"),r=e("readable-stream");class o extends r.Readable{constructor(e,t){super(t),this.destroyed=!1,this._torrent=e._torrent;const n=t&&t.start||0,r=t&&t.end&&t.end<e.length?t.end:e.length-1,o=e._torrent.pieceLength;this._startPiece=0|(n+e.offset)/o,this._endPiece=0|(r+e.offset)/o,this._piece=this._startPiece,this._offset=n+e.offset-this._startPiece*o,this._missing=r-n+1,this._reading=!1,this._notifying=!1,this._criticalLength=s(0|1048576/o,2)}_read(){this._reading||(this._reading=!0,this._notify())}_notify(){if(!this._reading||0===this._missing)return;if(!this._torrent.bitfield.get(this._piece))return this._torrent.critical(this._piece,this._piece+this._criticalLength);if(this._notifying)return;if(this._notifying=!0,this._torrent.destroyed)return this._destroy(new Error("Torrent removed"));const e=this._piece;this._torrent.store.get(e,(t,r)=>(this._notifying=!1,this.destroyed?void 0:t?this._destroy(t):void(n("read %s (length %s) (err %s)",e,r.length,t&&t.message),this._offset&&(r=r.slice(this._offset),this._offset=0),this._missing<r.length&&(r=r.slice(0,this._missing)),this._missing-=r.length,n("pushing buffer of length %s",r.length),this._reading=!1,this.push(r),0===this._missing&&this.push(null)))),this._piece+=1}destroy(e){this._destroy(null,e)}_destroy(e,t){this.destroyed||(this.destroyed=!0,!this._torrent.destroyed&&this._torrent.deselect(this._startPiece,this._endPiece,!0),e&&this.emit("error",e),this.emit("close"),t&&t())}}t.exports=o},{debug:33,"readable-stream":90}],2:[function(e,t){(function(n){const{EventEmitter:r}=e("events"),{PassThrough:o}=e("readable-stream"),i=e("end-of-stream"),a=e("path"),l=e("render-media"),c=e("stream-to-blob"),u=e("stream-to-blob-url"),f=e("stream-with-known-length-to-buffer"),p=e("./file-stream");class h extends r{constructor(e,t){super(),this._torrent=e,this._destroyed=!1,this.name=t.name,this.path=t.path,this.length=t.length,this.offset=t.offset,this.done=!1;const n=t.offset,r=n+t.length-1;this._startPiece=0|n/this._torrent.pieceLength,this._endPiece=0|r/this._torrent.pieceLength,0===this.length&&(this.done=!0,this.emit("done"))}get downloaded(){if(!this._torrent.bitfield)return 0;const{pieces:e,bitfield:t,pieceLength:n}=this._torrent,{_startPiece:r,_endPiece:o}=this,i=e[r];let a=t.get(r)?n-this.offset%n:d(i.length-i.missing-this.offset,0);for(let i=r+1;i<=o;++i)if(t.get(i))a+=n;else{const t=e[i];a+=t.length-t.missing}return s(a,this.length)}get progress(){return this.length?this.downloaded/this.length:0}select(e){0===this.length||this._torrent.select(this._startPiece,this._endPiece,e)}deselect(){0===this.length||this._torrent.deselect(this._startPiece,this._endPiece,!1)}createReadStream(e){if(0===this.length){const e=new o;return n.nextTick(()=>{e.end()}),e}const t=new p(this,e);return this._torrent.select(t._startPiece,t._endPiece,!0,()=>{t._notify()}),i(t,()=>{this._destroyed||!this._torrent.destroyed&&this._torrent.deselect(t._startPiece,t._endPiece,!0)}),t}getBuffer(e){f(this.createReadStream(),this.length,e)}getBlob(e){if("undefined"==typeof window)throw new Error("browser-only method");c(this.createReadStream(),this._getMimeType()).then(t=>e(null,t),e)}getBlobURL(e){if("undefined"==typeof window)throw new Error("browser-only method");u(this.createReadStream(),this._getMimeType(),e)}appendTo(e,t,n){if("undefined"==typeof window)throw new Error("browser-only method");l.append(this,e,t,n)}renderTo(e,t,n){if("undefined"==typeof window)throw new Error("browser-only method");l.render(this,e,t,n)}_getMimeType(){return l.mime[a.extname(this.name).toLowerCase()]}_destroy(){this._destroyed=!0,this._torrent=null}}t.exports=h}).call(this,e("_process"))},{"./file-stream":1,_process:67,"end-of-stream":35,events:36,path:64,"readable-stream":90,"render-media":91,"stream-to-blob":120,"stream-to-blob-url":118,"stream-with-known-length-to-buffer":121}],3:[function(e,t,n){const r=e("unordered-array-remove"),o=e("debug")("webtorrent:peer"),i=e("bittorrent-protocol"),a=e("./webconn");n.createWebRTCPeer=(e,t)=>{const n=new d(e.id,"webrtc");return n.conn=e,n.swarm=t,n.conn.connected?n.onConnect():(n.conn.once("connect",()=>{n.onConnect()}),n.conn.once("error",e=>{n.destroy(e)}),n.startConnectTimeout()),n},n.createTCPIncomingPeer=e=>{const t=`${e.remoteAddress}:${e.remotePort}`,n=new d(t,"tcpIncoming");return n.conn=e,n.addr=t,n.onConnect(),n},n.createTCPOutgoingPeer=(e,t)=>{const n=new d(e,"tcpOutgoing");return n.addr=e,n.swarm=t,n},n.createWebSeedPeer=(e,t)=>{const n=new d(e,"webSeed");return n.swarm=t,n.conn=new a(e,t),n.onConnect(),n};class d{constructor(e,t){this.id=e,this.type=t,o("new %s Peer %s",t,e),this.addr=null,this.conn=null,this.swarm=null,this.wire=null,this.connected=!1,this.destroyed=!1,this.timeout=null,this.retries=0,this.sentHandshake=!1}onConnect(){if(!this.destroyed){this.connected=!0,o("Peer %s connected",this.id),clearTimeout(this.connectTimeout);const e=this.conn;e.once("end",()=>{this.destroy()}),e.once("close",()=>{this.destroy()}),e.once("finish",()=>{this.destroy()}),e.once("error",e=>{this.destroy(e)});const t=this.wire=new i;t.type=this.type,t.once("end",()=>{this.destroy()}),t.once("close",()=>{this.destroy()}),t.once("finish",()=>{this.destroy()}),t.once("error",e=>{this.destroy(e)}),t.once("handshake",(e,t)=>{this.onHandshake(e,t)}),this.startHandshakeTimeout(),e.pipe(t).pipe(e),this.swarm&&!this.sentHandshake&&this.handshake()}}onHandshake(e,t){if(!this.swarm)return;if(this.destroyed)return;if(this.swarm.destroyed)return this.destroy(new Error("swarm already destroyed"));if(e!==this.swarm.infoHash)return this.destroy(new Error("unexpected handshake info hash for this swarm"));if(t===this.swarm.peerId)return this.destroy(new Error("refusing to connect to ourselves"));o("Peer %s got handshake %s",this.id,e),clearTimeout(this.handshakeTimeout),this.retries=0;let n=this.addr;!n&&this.conn.remoteAddress&&this.conn.remotePort&&(n=`${this.conn.remoteAddress}:${this.conn.remotePort}`),this.swarm._onWire(this.wire,n);this.swarm&&!this.swarm.destroyed&&(this.sentHandshake||this.handshake())}handshake(){const e={dht:!this.swarm.private&&!!this.swarm.client.dht};this.wire.handshake(this.swarm.infoHash,this.swarm.client.peerId,e),this.sentHandshake=!0}startConnectTimeout(){clearTimeout(this.connectTimeout),this.connectTimeout=setTimeout(()=>{this.destroy(new Error("connect timeout"))},"webrtc"===this.type?25e3:5e3),this.connectTimeout.unref&&this.connectTimeout.unref()}startHandshakeTimeout(){clearTimeout(this.handshakeTimeout),this.handshakeTimeout=setTimeout(()=>{this.destroy(new Error("handshake timeout"))},25e3),this.handshakeTimeout.unref&&this.handshakeTimeout.unref()}destroy(e){if(this.destroyed)return;this.destroyed=!0,this.connected=!1,o("destroy %s (error: %s)",this.id,e&&(e.message||e)),clearTimeout(this.connectTimeout),clearTimeout(this.handshakeTimeout);const t=this.swarm,n=this.conn,i=this.wire;this.swarm=null,this.conn=null,this.wire=null,t&&i&&r(t.wires,t.wires.indexOf(i)),n&&(n.on("error",()=>{}),n.destroy()),i&&i.destroy(),t&&t.removePeer(this.id)}}},{"./webconn":6,"bittorrent-protocol":14,debug:33,"unordered-array-remove":133}],4:[function(e,t){t.exports=class{constructor(e){this._torrent=e,this._numPieces=e.pieces.length,this._pieces=Array(this._numPieces),this._onWire=e=>{this.recalculate(),this._initWire(e)},this._onWireHave=e=>{this._pieces[e]+=1},this._onWireBitfield=()=>{this.recalculate()},this._torrent.wires.forEach(e=>{this._initWire(e)}),this._torrent.on("wire",this._onWire),this.recalculate()}getRarestPiece(e){let t=[],n=1/0;for(let r=0;r<this._numPieces;++r){if(e&&!e(r))continue;const o=this._pieces[r];o===n?t.push(r):o<n&&(t=[r],n=o)}return t.length?t[0|Math.random()*t.length]:-1}destroy(){this._torrent.removeListener("wire",this._onWire),this._torrent.wires.forEach(e=>{this._cleanupWireEvents(e)}),this._torrent=null,this._pieces=null,this._onWire=null,this._onWireHave=null,this._onWireBitfield=null}_initWire(e){e._onClose=()=>{this._cleanupWireEvents(e);for(let t=0;t<this._numPieces;++t)this._pieces[t]-=e.peerPieces.get(t)},e.on("have",this._onWireHave),e.on("bitfield",this._onWireBitfield),e.once("close",e._onClose)}recalculate(){this._pieces.fill(0);for(const e of this._torrent.wires)for(let t=0;t<this._numPieces;++t)this._pieces[t]+=e.peerPieces.get(t)}_cleanupWireEvents(e){e.removeListener("have",this._onWireHave),e.removeListener("bitfield",this._onWireBitfield),e._onClose&&e.removeListener("close",e._onClose),e._onClose=null}}},{}],5:[function(e,t){(function(n,r){function o(e,t){return 2+a(t*e.downloadSpeed()/I.BLOCK_LENGTH)}function l(e,t,n){return 1+a(t*e.downloadSpeed()/n)}function c(e){return 0|Math.random()*e}function u(){}const f=e("addr-to-ip-port"),p=e("bitfield"),h=e("chunk-store-stream/write"),m=e("debug")("webtorrent:torrent"),g=e("torrent-discovery"),_=e("events").EventEmitter,b=e("fs"),i=e("fs-chunk-store"),y=e("simple-get"),w=e("immediate-chunk-store"),k=e("multistream"),x=e("net"),S=e("os"),E=e("run-parallel"),v=e("run-parallel-limit"),C=e("parse-torrent"),L=e("path"),I=e("torrent-piece"),T=e("pump"),R=e("random-iterate"),B=e("simple-sha1"),A=e("speedometer"),U=e("uniq"),P=e("ut_metadata"),M=e("ut_pex"),O=e("parse-numeric-range"),N=e("./file"),q=e("./peer"),H=e("./rarity-map"),j=e("./server"),D=5e3,F=3*I.BLOCK_LENGTH,W=1,z=n.browser?1/0:2,V=[1e3,5e3,15e3],G=e("../package.json").version,K=`WebTorrent/${G} (https://webtorrent.io)`;let Y;try{Y=L.join(b.statSync("/tmp")&&"/tmp","webtorrent")}catch(e){Y=L.join("function"==typeof S.tmpdir?S.tmpdir():"/","webtorrent")}class X extends _{constructor(e,t,n){super(),this._debugId="unknown infohash",this.client=t,this.announce=n.announce,this.urlList=n.urlList,this.path=n.path,this.skipVerify=!!n.skipVerify,this._store=n.store||i,this._getAnnounceOpts=n.getAnnounceOpts,this.strategy=n.strategy||"sequential",this.maxWebConns=n.maxWebConns||4,this._rechokeNumSlots=!1===n.uploads||0===n.uploads?0:+n.uploads||10,this._rechokeOptimisticWire=null,this._rechokeOptimisticTime=0,this._rechokeIntervalId=null,this.ready=!1,this.destroyed=!1,this.paused=!1,this.done=!1,this.metadata=null,this.store=null,this.files=[],this.pieces=[],this._amInterested=!1,this._selections=[],this._critical=[],this.wires=[],this._queue=[],this._peers={},this._peersLength=0,this.received=0,this.uploaded=0,this._downloadSpeed=A(),this._uploadSpeed=A(),this._servers=[],this._xsRequests=[],this._fileModtimes=n.fileModtimes,null!==e&&this._onTorrentId(e),this._debug("new torrent")}get timeRemaining(){return this.done?0:0===this.downloadSpeed?1/0:1e3*((this.length-this.downloaded)/this.downloadSpeed)}get downloaded(){if(!this.bitfield)return 0;let e=0;for(let t=0,n=this.pieces.length;t<n;++t)if(this.bitfield.get(t))e+=t==n-1?this.lastPieceLength:this.pieceLength;else{const n=this.pieces[t];e+=n.length-n.missing}return e}get downloadSpeed(){return this._downloadSpeed()}get uploadSpeed(){return this._uploadSpeed()}get progress(){return this.length?this.downloaded/this.length:0}get ratio(){return this.uploaded/(this.received||1)}get numPeers(){return this.wires.length}get torrentFileBlobURL(){if("undefined"==typeof window)throw new Error("browser-only property");return this.torrentFile?URL.createObjectURL(new Blob([this.torrentFile],{type:"application/x-bittorrent"})):null}get _numQueued(){return this._queue.length+(this._peersLength-this._numConns)}get _numConns(){let e=0;for(const t in this._peers)this._peers[t].connected&&(e+=1);return e}get swarm(){return console.warn("WebTorrent: `torrent.swarm` is deprecated. Use `torrent` directly instead."),this}_onTorrentId(e){if(this.destroyed)return;let t;try{t=C(e)}catch(e){}t?(this.infoHash=t.infoHash,this._debugId=t.infoHash.toString("hex").substring(0,7),n.nextTick(()=>{this.destroyed||this._onParsedTorrent(t)})):C.remote(e,(e,t)=>this.destroyed?void 0:e?this._destroy(e):void this._onParsedTorrent(t))}_onParsedTorrent(e){if(!this.destroyed){if(this._processParsedTorrent(e),!this.infoHash)return this._destroy(new Error("Malformed torrent data: No info hash"));(this.path||(this.path=L.join(Y,this.infoHash)),this._rechokeIntervalId=setInterval(()=>{this._rechoke()},1e4),this._rechokeIntervalId.unref&&this._rechokeIntervalId.unref(),this.emit("_infoHash",this.infoHash),!this.destroyed)&&(this.emit("infoHash",this.infoHash),this.destroyed||(this.client.listening?this._onListening():this.client.once("listening",()=>{this._onListening()})))}}_processParsedTorrent(e){this._debugId=e.infoHash.toString("hex").substring(0,7),this.announce&&(e.announce=e.announce.concat(this.announce)),this.client.tracker&&r.WEBTORRENT_ANNOUNCE&&!this.private&&(e.announce=e.announce.concat(r.WEBTORRENT_ANNOUNCE)),this.urlList&&(e.urlList=e.urlList.concat(this.urlList)),U(e.announce),U(e.urlList),Object.assign(this,e),this.magnetURI=C.toMagnetURI(e),this.torrentFile=C.toTorrentFile(e)}_onListening(){if(this.discovery||this.destroyed)return;let e=this.client.tracker;e&&(e=Object.assign({},this.client.tracker,{getAnnounceOpts:()=>{const e={uploaded:this.uploaded,downloaded:this.downloaded,left:d(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 g({infoHash:this.infoHash,announce:this.announce,peerId:this.client.peerId,dht:!this.private&&this.client.dht,tracker:e,port:this.client.torrentPort,userAgent:K}),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(){function e(e,n){function r(r,o,i){if(t.destroyed)return n(null);if(t.metadata)return n(null);if(r)return t.emit("warning",new Error(`http error from xs param: ${e}`)),n(null);if(200!==o.statusCode)return t.emit("warning",new Error(`non-200 status code ${o.statusCode} from xs param: ${e}`)),n(null);let a;try{a=C(i)}catch(e){}return a?a.infoHash===t.infoHash?void(t._onMetadata(a),n(null)):(t.emit("warning",new Error(`got torrent file with incorrect info hash from xs param: ${e}`)),n(null)):(t.emit("warning",new Error(`got invalid torrent file from xs param: ${e}`)),n(null))}if(0!==e.indexOf("http://")&&0!==e.indexOf("https://"))return t.emit("warning",new Error(`skipping non-http xs param: ${e}`)),n(null);let o;try{o=y.concat({url:e,method:"GET",headers:{"user-agent":K}},r)}catch(r){return t.emit("warning",new Error(`skipping invalid url xs param: ${e}`)),n(null)}t._xsRequests.push(o)}const t=this,n=Array.isArray(this.xs)?this.xs:[this.xs],r=n.map(t=>n=>{e(t,n)});E(r)}_onMetadata(e){if(this.metadata||this.destroyed)return;this._debug("got metadata"),this._xsRequests.forEach(e=>{e.abort()}),this._xsRequests=[];let t;if(e&&e.infoHash)t=e;else try{t=C(e)}catch(e){return this._destroy(e)}if(this._processParsedTorrent(t),this.metadata=this.torrentFile,this.client.enableWebSeeds&&this.urlList.forEach(e=>{this.addWebSeed(e)}),this._rarityMap=new H(this),this.store=new w(new this._store(this.pieceLength,{torrent:{infoHash:this.infoHash},files:this.files.map(e=>({path:L.join(this.path,e.path),length:e.length,offset:e.offset})),length:this.length,name:this.infoHash})),this.files=this.files.map(e=>new N(this,e)),this.so){const e=O.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 I(n)}),this._reservations=this.pieces.map(()=>[]),this.bitfield=new p(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=>e?this._destroy(e):void(this._debug("done verifying"),this._onStore());this._debug("verifying existing torrent data"),this._fileModtimes&&this._store===i?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=[];v(this.files.map((e,n)=>r=>{b.stat(L.join(this.path,e.path),(e,o)=>e&&"ENOENT"!==e.code?r(e):void(t[n]=o&&o.mtime.getTime(),r(null)))}),z,n=>{this._debug("done getting file modtimes"),e(n,t)})}_verifyPieces(e){v(this.pieces.map((e,t)=>e=>this.destroyed?e(new Error("torrent is destroyed")):void this.store.get(t,(r,o)=>this.destroyed?e(new Error("torrent is destroyed")):r?n.nextTick(e,null):void B(o,n=>{if(this.destroyed)return e(new Error("torrent is destroyed"));if(n===this._hashes[t]){if(!this.pieces[t])return;this._debug("piece verified %s",t),this._markVerified(t)}else this._debug("piece invalid %s",t);e(null)}))),z,e)}rescanFiles(e){if(this.destroyed)throw new Error("torrent is destroyed");e||(e=u),this._verifyPieces(t=>t?(this._destroy(t),e(t)):void(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){for(const e in this.destroyed=!0,this._debug("destroy"),this.client._remove(this),clearInterval(this._rechokeIntervalId),this._xsRequests.forEach(e=>{e.abort()}),this._rarityMap&&this._rarityMap.destroy(),this._peers)this.removePeer(e);this.files.forEach(e=>{e instanceof N&&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)}),E(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(t){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 e;if("string"==typeof t){let n;try{n=f(t)}catch(n){return this._debug("ignoring peer: invalid %s",t),this.emit("invalidPeer",t),!1}e=n[0]}else"string"==typeof t.remoteAddress&&(e=t.remoteAddress);if(e&&this.client.blocked.contains(e))return this._debug("ignoring peer: blocked %s",t),"string"!=typeof t&&t.destroy(),this.emit("blockedPeer",t),!1}const n=!!this._addPeer(t);return n?this.emit("peer",t):this.emit("invalidPeer",t),n}_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;this._debug("add peer %s",t);let n;return n="string"==typeof e?q.createTCPOutgoingPeer(e,this):q.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=q.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")):void(this._debug("add incoming peer %s",e.id),this._peers[e.id]=e,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(0>e||t<e||this.pieces.length<=t)throw new Error(`invalid selection ${e} : ${t}`);n=+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||u}),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=+n||0,this._debug("deselect %s-%s (priority %s)",e,t,n);for(let r=0;r<this._selections.length;++r){const o=this._selections[r];if(o.from===e&&o.to===t&&o.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,t){if(this._debug("got wire %s (%s)",e._debugId,t||"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),t){const n=f(t);e.remoteAddress=n[0],e.remotePort=n[1]}this.client.dht&&this.client.dht.listening&&e.on("port",n=>this.destroyed||this.client.dht.destroyed?void 0:e.remoteAddress?0===n||65536<n?this._debug("ignoring invalid PORT from peer"):void(this._debug("port: %s (from %s)",n,t),this.client.dht.addNode({host:e.remoteAddress,port:n})):this._debug("ignoring PORT from peer with no address")),e.on("timeout",()=>{this._debug("wire timeout (%s)",t),e.destroy()}),e.setTimeout(3e4,!0),e.setKeepAlive(!0),e.use(P(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 M||this.private||(e.use(M()),e.ut_pex.on("peer",e=>{this.done||(this._debug("ut_pex: got peer: %s (from %s)",e,t),this.addPeer(e))}),e.ut_pex.on("dropped",e=>{const n=this._peers[e];n&&!n.connected&&(this._debug("ut_pex: dropped peer: %s (from %s)",e,t),this.removePeer(e))}),e.once("close",()=>{e.ut_pex.reset()})),this.emit("wire",e,t),this.metadata&&n.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 o=()=>{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",()=>{o(),this._update()}),e.on("have",()=>{o(),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,o)=>r>131072?e.destroy():void(this.pieces[t]||this.store.get(t,{offset:n,length:r},o))),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.isSeeder=!1,o()}_updateSelections(){!this.ready||this.destroyed||(n.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;for(;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){const e=R(this.wires);for(let t;t=e();)this._updateWireWrapper(t)}}_updateWireWrapper(e){const t=this;"undefined"!=typeof window&&"function"==typeof window.requestIdleCallback?window.requestIdleCallback(function(){t._updateWire(e)}):t._updateWire(e)}_updateWire(e){function t(t,n,r,o){return a=>a>=t&&a<=n&&!(a in r)&&e.peerPieces.get(a)&&(!o||o(a))}function n(){const t=e.downloadSpeed()||1;if(t>F)return()=>!0;const n=d(1,e.requests.length)*I.BLOCK_LENGTH/t;let r=10,o=0;return e=>{if(!r||a.bitfield.get(e))return!0;for(let i=a.pieces[e].missing;o<a.wires.length;o++){const d=a.wires[o],s=d.downloadSpeed();if(!(s<F)&&!(s<=t)&&d.peerPieces.get(e)&&!(0<(i-=s*n)))return r--,!1}return!0}}function r(e){let t=e;for(let n=e;n<a._selections.length&&a._selections[n].priority;n++)t=n;const n=a._selections[e];a._selections[e]=a._selections[t],a._selections[t]=n}function i(o){if(e.requests.length>=l)return!0;const d=n();for(let n=0;n<a._selections.length;n++){const i=a._selections[n];let s;if("rarest"===a.strategy){const c=i.from+i.offset,u=i.to,f={};let p=0;for(const h=t(c,u,f,d);p<u-c+1&&(s=a._rarityMap.getRarestPiece(h),!(0>s));){for(;a._request(e,s,a._critical[s]||o););if(e.requests.length<l){f[s]=!0,p++;continue}return i.priority&&r(n),!0}}else for(s=i.from+i.offset;s<=i.to;s++)if(e.peerPieces.get(s)&&d(s)){for(;a._request(e,s,a._critical[s]||o););if(!(e.requests.length<l))return i.priority&&r(n),!0}}return!1}const a=this;if(e.peerChoking)return;if(!e.downloaded)return function(){if(!e.requests.length)for(let n=a._selections.length;n--;){const r=a._selections[n];let o;if("rarest"===a.strategy){const n=r.from+r.offset,i=r.to,d={};let s=0;for(const r=t(n,i,d);s<i-n+1&&(o=a._rarityMap.getRarestPiece(r),!(0>o));){if(a._request(e,o,!1))return;d[o]=!0,s+=1}}else for(o=r.to;o>=r.from+r.offset;--o)if(e.peerPieces.get(o)&&a._request(e,o,!1))return}}();const s=o(e,.5);if(e.requests.length>=s)return;const l=o(e,W);i(!1)||i(!0)}_rechoke(){if(!this.ready)return;0<this._rechokeOptimisticTime?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(function(e,t){return e.downloadSpeed===t.downloadSpeed?e.uploadSpeed===t.uploadSpeed?e.wire.amChoking===t.wire.amChoking?e.salt-t.salt:e.wire.amChoking?1:-1:t.uploadSpeed-e.uploadSpeed:t.downloadSpeed-e.downloadSpeed});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[c(t.length)];r&&(r.isChoked=!1,this._rechokeOptimisticWire=r.wire,this._rechokeOptimisticTime=2)}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<I.BLOCK_LENGTH)return!1;if(!this._reservations[t])return!1;const o=this._reservations[t];if(!o)return!1;let r=1/0,a,d;for(d=0;d<o.length;d++){const t=o[d];if(!t||t===e)continue;const i=t.downloadSpeed();i>=F||2*i>n||i>r||(a=t,r=i)}if(!a)return!1;for(d=0;d<o.length;d++)o[d]===a&&(o[d]=null);for(d=0;d<a.requests.length;d++){const e=a.requests[d];e.piece===t&&this.pieces[t].cancel(0|e.offset/I.BLOCK_LENGTH)}return this.emit("hotswap",a,e,t),!0}_request(e,t,a){function d(){n.nextTick(()=>{c._update()})}const c=this,u=e.requests.length,f="webSeed"===e.type;if(c.bitfield.get(t))return!1;const p=f?s(l(e,W,c.pieceLength),c.maxWebConns):o(e,W);if(u>=p)return!1;const h=c.pieces[t];let m=f?h.reserveRemaining():h.reserve();if(-1===m&&a&&c._hotswap(e,t)&&(m=f?h.reserveRemaining():h.reserve()),-1===m)return!1;let g=c._reservations[t];g||(g=c._reservations[t]=[]);let _=g.indexOf(null);-1===_&&(_=g.length),g[_]=e;const b=h.chunkOffset(m),y=f?h.chunkLengthRemaining(m):h.chunkLength(m);return e.request(t,b,y,function n(r,o){if(c.destroyed)return;if(!c.ready)return c.once("ready",()=>{n(r,o)});if(g[_]===e&&(g[_]=null),h!==c.pieces[t])return d();if(r)return c._debug("error getting piece %s (offset: %s length: %s) from %s: %s",t,b,y,`${e.remoteAddress}:${e.remotePort}`,r.message),f?h.cancelRemaining(m):h.cancel(m),void d();if(c._debug("got piece %s (offset: %s length: %s) from %s",t,b,y,`${e.remoteAddress}:${e.remotePort}`),!h.set(m,o,e))return d();const i=h.flush();B(i,e=>{if(!c.destroyed){if(e===c._hashes[t]){if(!c.pieces[t])return;c._debug("piece verified %s",t),c.pieces[t]=null,c._reservations[t]=null,c.bitfield.set(t,!0),c.store.put(t,i),c.wires.forEach(e=>{e.have(t)}),c._checkDone()&&!c.destroyed&&c.discovery.complete()}else c.pieces[t]=new I(h.length),c.emit("warning",new Error(`Piece ${t} failed verification`));d()}})}),!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: ${this.infoHash}`),this.emit("done")),this._gcSelections(),e}load(e,t){if(this.destroyed)throw new Error("torrent is destroyed");if(!this.ready)return this.once("ready",()=>{this.load(e,t)});Array.isArray(e)||(e=[e]),t||(t=u);const n=new k(e),r=new h(this.store,this.pieceLength);T(n,r,e=>e?t(e):void(this._markAllVerified(),this._checkDone(),t(null)))}createServer(e){if("function"!=typeof j)throw new Error("node.js-only method");if(this.destroyed)throw new Error("torrent is destroyed");const t=new j(this,e);return this._servers.push(t),t}pause(){this.destroyed||(this._debug("pause"),this.paused=!0)}resume(){this.destroyed||(this._debug("resume"),this.paused=!1,this._drain())}_debug(){const e=[].slice.call(arguments);e[0]=`[${this.client._debugId}] [${this._debugId}] ${e[0]}`,m(...e)}_drain(){if(this._debug("_drain numConns %s maxConns %s",this._numConns,this.client.maxConns),"function"!=typeof x.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=f(e.addr),n={host:t[0],port:t[1]},r=e.conn=x.connect(n);r.once("connect",()=>{e.onConnect()}),r.once("error",t=>{e.destroy(t)}),e.startConnectTimeout(),r.on("close",()=>{if(!this.destroyed){if(e.retries>=V.length)return void this._debug("conn %s closed: will not re-add (max %s attempts)",e.addr,V.length);const t=V[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=f(e)}catch(t){return!1}const n=t[0],r=t[1];return 0<r&&65535>r&&("127.0.0.1"!==n||r!==this.client.torrentPort)}}t.exports=X}).call(this,e("_process"),"undefined"==typeof global?"undefined"==typeof self?"undefined"==typeof window?{}:window:self:global)},{"../package.json":142,"./file":2,"./peer":3,"./rarity-map":4,"./server":21,_process:67,"addr-to-ip-port":7,bitfield:13,"chunk-store-stream/write":29,debug:33,events:36,fs:22,"fs-chunk-store":51,"immediate-chunk-store":41,multistream:59,net:21,os:21,"parse-numeric-range":62,"parse-torrent":63,path:64,pump:68,"random-iterate":73,"run-parallel":94,"run-parallel-limit":93,"simple-get":98,"simple-sha1":100,speedometer:102,"torrent-discovery":128,"torrent-piece":129,uniq:132,ut_metadata:136,ut_pex:21}],6:[function(e,t){const n=e("bitfield"),r=e("safe-buffer").Buffer,o=e("debug")("webtorrent:webconn"),i=e("simple-get"),a=e("simple-sha1"),l=e("bittorrent-protocol"),c=e("../package.json").version;t.exports=class extends l{constructor(e,t){super(),this.url=e,this.webPeerId=a.sync(e),this._torrent=t,this._init()}_init(){this.setKeepAlive(!0),this.once("handshake",e=>{if(this.destroyed)return;this.handshake(e,this.webPeerId);const t=this._torrent.pieces.length,r=new n(t);for(let n=0;n<=t;n++)r.set(n,!0);this.bitfield(r)}),this.once("interested",()=>{o("interested"),this.unchoke()}),this.on("uninterested",()=>{o("uninterested")}),this.on("choke",()=>{o("choke")}),this.on("unchoke",()=>{o("unchoke")}),this.on("bitfield",()=>{o("bitfield")}),this.on("request",(e,t,n,r)=>{o("request pieceIndex=%d offset=%d length=%d",e,t,n),this.httpRequest(e,t,n,r)})}httpRequest(e,t,n,a){const l=e*this._torrent.pieceLength,u=l+t,f=u+n-1,p=this._torrent.files;let h;if(1>=p.length)h=[{url:this.url,start:u,end:f}];else{const e=p.filter(e=>e.offset<=f&&e.offset+e.length>u);if(1>e.length)return a(new Error("Could not find file corresponnding to web seed range request"));h=e.map(e=>{const t=e.offset+e.length-1,n=this.url+("/"===this.url[this.url.length-1]?"":"/")+e.path;return{url:n,fileOffsetInRange:d(e.offset-u,0),start:d(u-e.offset,0),end:s(t,f-e.offset)}})}let m=0,g=!1,_;1<h.length&&(_=r.alloc(n)),h.forEach(r=>{function d(e,t){return 200>e.statusCode||300<=e.statusCode?(g=!0,a(new Error(`Unexpected HTTP status code ${e.statusCode}`))):void(o("Got data of length %d",t.length),1===h.length?a(null,t):(t.copy(_,r.fileOffsetInRange),++m===h.length&&a(null,_)))}const s=r.url,l=r.start,u=r.end;o("Requesting url=%s pieceIndex=%d offset=%d length=%d start=%d end=%d",s,e,t,n,l,u);const f={url:s,method:"GET",headers:{"user-agent":`WebTorrent/${c} (https://webtorrent.io)`,range:`bytes=${l}-${u}`}};i.concat(f,(e,t,n)=>g?void 0:e?"undefined"==typeof window||s.startsWith(`${window.location.origin}/`)?(g=!0,a(e)):i.head(s,(t,n)=>g?void 0:t?(g=!0,a(t)):200>n.statusCode||300<=n.statusCode?(g=!0,a(new Error(`Unexpected HTTP status code ${n.statusCode}`))):n.url===s?(g=!0,a(e)):void(f.url=n.url,i.concat(f,(e,t,n)=>g?void 0:e?(g=!0,a(e)):void d(t,n)))):void d(t,n))})}destroy(){super.destroy(),this._torrent=null}}},{"../package.json":142,bitfield:13,"bittorrent-protocol":14,debug:33,"safe-buffer":96,"simple-get":98,"simple-sha1":100}],7:[function(e,t){const n=/^\[?([^\]]+)\]?:(\d+)$/;let r={},o=0;t.exports=function(e){if(1e5===o&&t.exports.reset(),!r[e]){const t=n.exec(e);if(!t)throw new Error(`invalid addr: ${e}`);r[e]=[t[1],+t[2]],o+=1}return r[e]},t.exports.reset=function(){r={},o=0}},{}],8:[function(e,t,n){'use strict';function r(e){var t=e.length;if(0<t%4)throw new Error("Invalid string. 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a=101;r.bytes=0,r.position=0,r.data=null,r.encoding=null,r.next=function(){switch(r.data[r.position]){case 100:return r.dictionary();case 108:return r.list();case 105:return r.integer();default:return r.buffer();}},r.find=function(e){for(var t=r.position,n=r.data.length,a=r.data;t<n;){if(a[t]===e)return t;t++}throw new Error("Invalid data: Missing delimiter \""+o(e)+"\" [0x"+e.toString(16)+"]")},r.dictionary=function(){r.position++;for(var e={};r.data[r.position]!==a;)e[r.buffer()]=r.next();return r.position++,e},r.list=function(){r.position++;for(var e=[];r.data[r.position]!==a;)e.push(r.next());return r.position++,e},r.integer=function(){var e=r.find(a),t=n(r.data,r.position+1,e);return r.position+=e+1-r.position,t},r.buffer=function(){var e=r.find(58),t=n(r.data,r.position,e),o=++e+t;return r.position=o,r.encoding?r.data.toString(r.encoding,e,o):r.data.slice(e,o)},t.exports=r},{"safe-buffer":96}],10:[function(e,t){function n(e,t,o){var i=[],a=null;return n._encode(i,e),a=r.concat(i),n.bytes=a.length,r.isBuffer(t)?(a.copy(t,o),t):a}var r=e("safe-buffer").Buffer;n.bytes=-1,n._floatConversionDetected=!1,n.getType=function(e){return r.isBuffer(e)?"buffer":Array.isArray(e)?"array":ArrayBuffer.isView(e)?"arraybufferview":e instanceof Number?"number":e instanceof Boolean?"boolean":e instanceof ArrayBuffer?"arraybuffer":typeof e},n._encode=function(e,t){if(null!=t)switch(n.getType(t)){case"buffer":n.buffer(e,t);break;case"object":n.dict(e,t);break;case"array":n.list(e,t);break;case"string":n.string(e,t);break;case"number":n.number(e,t);break;case"boolean":n.number(e,t);break;case"arraybufferview":n.buffer(e,r.from(t.buffer,t.byteOffset,t.byteLength));break;case"arraybuffer":n.buffer(e,r.from(t));}};var o=r.from("e"),i=r.from("d"),a=r.from("l");n.buffer=function(e,t){e.push(r.from(t.length+":"),t)},n.string=function(e,t){e.push(r.from(r.byteLength(t)+":"+t))},n.number=function(e,t){var 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protocol"),u=n.from([0,0,0,0]),f=n.from([0,0,0,1,0]),p=n.from([0,0,0,1,1]),h=n.from([0,0,0,1,2]),m=n.from([0,0,0,1,3]),g=[0,0,0,0,0,0,0,0],_=[0,0,0,3,9,0,0];class b{constructor(e,t,n,r){this.piece=e,this.offset=t,this.length=n,this.callback=r}}class y extends l.Duplex{constructor(){super(),this._debugId=d(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 i(0,{grow:4e5}),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=s(),this.downloadSpeed=s(),this._keepAliveInterval=null,this._timeout=null,this._timeoutMs=0,this.destroyed=!1,this._finished=!1,this._parserSize=0,this._parser=null,this._buffer=[],this._bufferSize=0,this.on("finish",this._onFinish),this._parseHandshake()}setKeepAlive(e){this._debug("setKeepAlive %s",e),clearInterval(this._keepAliveInterval);!1===e||(this._keepAliveInterval=setInterval(()=>{this.keepAlive()},55e3))}setTimeout(e,t){this._debug("setTimeout ms=%d unref=%s",e,t),this._clearTimeout(),this._timeoutMs=e,this._timeoutUnref=!!t,this._updateTimeout()}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){function t(){}const n=e.prototype.name;if(!n)throw new Error("Extension class requires a \"name\" property on the prototype");this._debug("use extension.name=%s",n);const r=this._nextExt,o=new e(this);"function"!=typeof o.onHandshake&&(o.onHandshake=t),"function"!=typeof o.onExtendedHandshake&&(o.onExtendedHandshake=t),"function"!=typeof o.onMessage&&(o.onMessage=t),this.extendedMapping[r]=n,this._ext[n]=o,this[n]=o,this._nextExt+=1}keepAlive(){this._debug("keep-alive"),this._push(u)}handshake(e,t,r){let o,i;if("string"==typeof e?(e=e.toLowerCase(),o=n.from(e,"hex")):(o=e,e=o.toString("hex")),"string"==typeof t?i=n.from(t,"hex"):(i=t,t=i.toString("hex")),20!==o.length||20!==i.length)throw new Error("infoHash and peerId MUST have length 20");this._debug("handshake i=%s p=%s exts=%o",e,t,r);const a=n.from(g);a[5]|=16,r&&r.dht&&(a[7]|=1),this._push(n.concat([c,a,o,i])),this._handshakeSent=!0,this.peerExtensions.extended&&!this._extendedHandshakeSent&&this._sendExtendedHandshake()}_sendExtendedHandshake(){const e=Object.assign({},this.extendedHandshake);for(const t in e.m={},this.extendedMapping){const n=this.extendedMapping[t];e.m[n]=+t}this.extended(0,o.encode(e)),this._extendedHandshakeSent=!0}choke(){if(!this.amChoking){for(this.amChoking=!0,this._debug("choke");this.peerRequests.length;)this.peerRequests.pop();this._push(f)}}unchoke(){this.amChoking&&(this.amChoking=!1,this._debug("unchoke"),this._push(p))}interested(){this.amInterested||(this.amInterested=!0,this._debug("interested"),this._push(h))}uninterested(){this.amInterested&&(this.amInterested=!1,this._debug("uninterested"),this._push(m))}have(e){this._debug("have %d",e),this._message(4,[e],null)}bitfield(e){this._debug("bitfield"),n.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")):void(this._debug("request index=%d offset=%d length=%d",e,t,n),this.requests.push(new b(e,t,n,r)),this._updateTimeout(),this._message(6,[e,t,n],null))}piece(e,t,n){this._debug("piece index=%d offset=%d",e,t),this.uploaded+=n.length,this.uploadSpeed(n.length),this.emit("upload",n.length),this._message(7,[e,t],n)}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 t=n.from(_);t.writeUInt16BE(e,5),this._push(t)}extended(e,t){if(this._debug("extended ext=%s",e),"string"==typeof e&&this.peerExtendedMapping[e]&&(e=this.peerExtendedMapping[e]),"number"==typeof e){const r=n.from([e]),i=n.isBuffer(t)?t:o.encode(t);this._message(20,[],n.concat([r,i]))}else throw new Error(`Unrecognized extension: ${e}`)}_read(){}_message(e,t,r){const o=r?r.length:0,a=n.allocUnsafe(5+4*t.length);a.writeUInt32BE(a.length+o-4,0),a[4]=e;for(let n=0;n<t.length;n++)a.writeUInt32BE(t[n],5+4*n);this._push(a),r&&this._push(r)}_push(e){return this._finished?void 0:this.push(e)}_onKeepAlive(){this._debug("got keep-alive"),this.emit("keep-alive")}_onHandshake(e,t,n){const r=e.toString("hex"),o=t.toString("hex");this._debug("got handshake i=%s p=%s exts=%o",r,o,n),this.peerId=o,this.peerIdBuffer=t,this.peerExtensions=n,this.emit("handshake",r,o,n);for(var i in this._ext)this._ext[i].onHandshake(r,o,n);n.extended&&this._handshakeSent&&!this._extendedHandshakeSent&&this._sendExtendedHandshake()}_onChoke(){for(this.peerChoking=!0,this._debug("got choke"),this.emit("choke");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 i(e),this._debug("got bitfield"),this.emit("bitfield",this.peerPieces)}_onRequest(e,t,n){if(!this.amChoking){this._debug("got request index=%d offset=%d length=%d",e,t,n);const o=(o,i)=>r===this._pull(this.peerRequests,e,t,n)?o?this._debug("error satisfying request index=%d offset=%d length=%d (%s)",e,t,n,o.message):void this.piece(e,t,i):void 0;var r=new b(e,t,n,o);this.peerRequests.push(r),this.emit("request",e,t,n,o)}}_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;try{e=o.decode(t)}catch(e){this._debug("ignoring invalid extended handshake: %s",e.message||e)}if(!e)return;this.peerExtendedHandshake=e;if("object"==typeof e.m)for(var n in e.m)this.peerExtendedMapping[n]=+e.m[n].toString();for(n in this._ext)this.peerExtendedMapping[n]&&this._ext[n].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,t,r){for(this._bufferSize+=e.length,this._buffer.push(e);this._bufferSize>=this._parserSize;){const e=1===this._buffer.length?this._buffer[0]:n.concat(this._buffer);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._clearTimeout(),!this.peerChoking&&!this._finished&&this._updateTimeout(),e.callback(t,n))}_clearTimeout(){this._timeout&&(clearTimeout(this._timeout),this._timeout=null)}_updateTimeout(){this._timeoutMs&&this.requests.length&&!this._timeout&&(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);0<t?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 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);return"BitTorrent protocol"===n.toString()?void(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)):(this._debug("Error: wire not speaking BitTorrent protocol (%s)",n.toString()),void this.end())})})}_onFinish(){for(this._finished=!0,this.push(null);this.read(););for(clearInterval(this._keepAliveInterval),this._parse(Number.MAX_VALUE,()=>{});this.peerRequests.length;)this.peerRequests.pop();for(;this.requests.length;)this._callback(this.requests.pop(),new Error("wire was closed"),null)}_debug(...e){e[0]=`[${this._debugId}] ${e[0]}`,a(...e)}_pull(e,t,n,o){for(let a=0;a<e.length;a++){const i=e[a];if(i.piece===t&&i.offset===n&&i.length===o)return r(e,a),i}return null}}t.exports=y}).call(this,e("buffer").Buffer)},{bencode:11,bitfield:13,buffer:27,debug:33,randombytes:74,"readable-stream":90,speedometer:102,"unordered-array-remove":133}],15:[function(e,t){(function(n){const{Buffer:r}=e("safe-buffer"),o=e("debug")("bittorrent-tracker:client"),i=e("events"),a=e("once"),d=e("run-parallel"),s=e("simple-peer"),l=e("uniq"),c=e("url").URL,u=e("./lib/common"),f=e("./lib/client/http-tracker"),p=e("./lib/client/udp-tracker"),h=e("./lib/client/websocket-tracker");class m extends i{constructor(e={}){if(super(),!e.peerId)throw new Error("Option `peerId` is required");if(!e.infoHash)throw new Error("Option `infoHash` is required");if(!e.announce)throw new Error("Option `announce` is required");if(!n.browser&&!e.port)throw new Error("Option `port` is required");this.peerId="string"==typeof e.peerId?e.peerId:e.peerId.toString("hex"),this._peerIdBuffer=r.from(this.peerId,"hex"),this._peerIdBinary=this._peerIdBuffer.toString("binary"),this.infoHash="string"==typeof e.infoHash?e.infoHash.toLowerCase():e.infoHash.toString("hex"),this._infoHashBuffer=r.from(this.infoHash,"hex"),this._infoHashBinary=this._infoHashBuffer.toString("binary"),o("new client %s",this.infoHash),this.destroyed=!1,this._port=e.port,this._getAnnounceOpts=e.getAnnounceOpts,this._rtcConfig=e.rtcConfig,this._userAgent=e.userAgent,this._wrtc="function"==typeof e.wrtc?e.wrtc():e.wrtc;let t="string"==typeof e.announce?[e.announce]:null==e.announce?[]:e.announce;t=t.map(e=>(e=e.toString(),"/"===e[e.length-1]&&(e=e.substring(0,e.length-1)),e)),t=l(t);const i=!1!==this._wrtc&&(!!this._wrtc||s.WEBRTC_SUPPORT),a=e=>{n.nextTick(()=>{this.emit("warning",e)})};this._trackers=t.map(e=>{let t;try{t=new c(e)}catch(t){return a(new Error(`Invalid tracker URL: ${e}`)),null}const n=t.port;if(0>n||65535<n)return a(new Error(`Invalid tracker port: ${e}`)),null;const r=t.protocol;return("http:"===r||"https:"===r)&&"function"==typeof f?new f(this,e):"udp:"===r&&"function"==typeof p?new p(this,e):("ws:"===r||"wss:"===r)&&i?"ws:"===r&&"undefined"!=typeof window&&"https:"===window.location.protocol?(a(new Error(`Unsupported tracker protocol: ${e}`)),null):new h(this,e):(a(new Error(`Unsupported tracker protocol: ${e}`)),null)}).filter(Boolean)}start(e){o("send `start`"),e=this._defaultAnnounceOpts(e),e.event="started",this._announce(e),this._trackers.forEach(e=>{e.setInterval()})}stop(e){o("send `stop`"),e=this._defaultAnnounceOpts(e),e.event="stopped",this._announce(e)}complete(e){o("send `complete`"),e||(e={}),e=this._defaultAnnounceOpts(e),e.event="completed",this._announce(e)}update(e){o("send `update`"),e=this._defaultAnnounceOpts(e),e.event&&delete e.event,this._announce(e)}_announce(e){this._trackers.forEach(t=>{t.announce(e)})}scrape(e){o("send `scrape`"),e||(e={}),this._trackers.forEach(t=>{t.scrape(e)})}setInterval(e){o("setInterval %d",e),this._trackers.forEach(t=>{t.setInterval(e)})}destroy(e){if(!this.destroyed){this.destroyed=!0,o("destroy");const t=this._trackers.map(e=>t=>{e.destroy(t)});d(t,e),this._trackers=[],this._getAnnounceOpts=null}}_defaultAnnounceOpts(e={}){return null==e.numwant&&(e.numwant=u.DEFAULT_ANNOUNCE_PEERS),null==e.uploaded&&(e.uploaded=0),null==e.downloaded&&(e.downloaded=0),this._getAnnounceOpts&&(e=Object.assign({},e,this._getAnnounceOpts())),e}}m.scrape=(e,t)=>{if(t=a(t),!e.infoHash)throw new Error("Option `infoHash` is required");if(!e.announce)throw new Error("Option `announce` is required");const n=Object.assign({},e,{infoHash:Array.isArray(e.infoHash)?e.infoHash[0]:e.infoHash,peerId:r.from("01234567890123456789"),port:6881}),o=new m(n);o.once("error",t),o.once("warning",t);let i=Array.isArray(e.infoHash)?e.infoHash.length:1;const d={};return o.on("scrape",e=>{if(i-=1,d[e.infoHash]=e,0===i){o.destroy();const e=Object.keys(d);1===e.length?t(null,d[e[0]]):t(null,d)}}),e.infoHash=Array.isArray(e.infoHash)?e.infoHash.map(e=>r.from(e,"hex")):r.from(e.infoHash,"hex"),o.scrape({infoHash:e.infoHash}),o},t.exports=m}).call(this,e("_process"))},{"./lib/client/http-tracker":21,"./lib/client/udp-tracker":21,"./lib/client/websocket-tracker":17,"./lib/common":18,_process:67,debug:33,events:36,once:61,"run-parallel":94,"safe-buffer":96,"simple-peer":99,uniq:132,url:134}],16:[function(e,t){const n=e("events");t.exports=class extends n{constructor(e,t){super(),this.client=e,this.announceUrl=t,this.interval=null,this.destroyed=!1}setInterval(e){null==e&&(e=this.DEFAULT_ANNOUNCE_INTERVAL),clearInterval(this.interval),e&&(this.interval=setInterval(()=>{this.announce(this.client._defaultAnnounceOpts())},e),this.interval.unref&&this.interval.unref())}}},{events:36}],17:[function(e,t){function o(){}const i=e("debug")("bittorrent-tracker:websocket-tracker"),a=e("simple-peer"),d=e("randombytes"),l=e("simple-websocket"),c=e("../common"),u=e("./tracker"),f={};class p extends u{constructor(e,t,n){super(e,t),i("new websocket tracker %s",t),this.peers={},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;if(!this.socket.connected)return void this.socket.once("connect",()=>{this.announce(e)});const t=Object.assign({},e,{action:"announce",info_hash:this.client._infoHashBinary,peer_id:this.client._peerIdBinary});if(this._trackerId&&(t.trackerid=this._trackerId),"stopped"===e.event||"completed"===e.event)this._send(t);else{const n=s(e.numwant,10);this._generateOffers(n,e=>{t.numwant=n,t.offers=e,this._send(t)})}}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)&&0<e.infoHash.length?e.infoHash.map(e=>e.toString("binary")):e.infoHash&&e.infoHash.toString("binary")||this.client._infoHashBinary;this._send({action:"scrape",info_hash:t})}destroy(e=o){function t(){r&&(clearTimeout(r),r=null),n.removeListener("data",t),n.destroy(),n=null}if(this.destroyed)return e(null);for(const t in this.destroyed=!0,clearInterval(this.interval),clearTimeout(this.reconnectTimer),this.peers){const e=this.peers[t];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,f[this.announceUrl]&&(f[this.announceUrl].consumers-=1),0<f[this.announceUrl].consumers)return e();let n=f[this.announceUrl];if(delete f[this.announceUrl],n.on("error",o),n.once("close",e),!this.expectingResponse)return t();var r=setTimeout(t,c.DESTROY_TIMEOUT);n.once("data",t)}_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=f[this.announceUrl],this.socket?f[this.announceUrl].consumers+=1:(this.socket=f[this.announceUrl]=new l(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(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: ${e.action}`))}}_onAnnounceResponse(e){if(e.info_hash!==this.client._infoHashBinary)return void i("ignoring websocket data from %s for %s (looking for %s: reused socket)",this.announceUrl,c.binaryToHex(e.info_hash),this.client.infoHash);if(e.peer_id&&e.peer_id===this.client._peerIdBinary)return;i("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 r=e.interval||e["min interval"];r&&this.setInterval(1e3*r);const o=e["tracker id"];if(o&&(this._trackerId=o),null!=e.complete){const t=Object.assign({},e,{announce:this.announceUrl,infoHash:c.binaryToHex(e.info_hash)});this.client.emit("update",t)}let a;if(e.offer&&e.peer_id&&(i("creating peer (from remote offer)"),a=this._createPeer(),a.id=c.binaryToHex(e.peer_id),a.once("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)}),a.signal(e.offer),this.client.emit("peer",a)),e.answer&&e.peer_id){const t=c.binaryToHex(e.offer_id);a=this.peers[t],a?(a.id=c.binaryToHex(e.peer_id),a.signal(e.answer),this.client.emit("peer",a),clearTimeout(a.trackerTimeout),a.trackerTimeout=null,delete this.peers[t]):i(`got unexpected answer: ${JSON.stringify(e.answer)}`)}}_onScrapeResponse(e){e=e.files||{};const t=Object.keys(e);return 0===t.length?void this.client.emit("warning",new Error("invalid scrape response")):void t.forEach(t=>{const n=Object.assign(e[t],{announce:this.announceUrl,infoHash:c.binaryToHex(t)});this.client.emit("scrape",n)})}_onSocketClose(){this.destroyed||(this.destroy(),this._startReconnectTimer())}_onSocketError(e){this.destroyed||(this.destroy(),this.client.emit("warning",e),this._startReconnectTimer())}_startReconnectTimer(){const e=r(Math.random()*120000)+s(n(2,this.retries)*10000,1800000);this.reconnecting=!0,clearTimeout(this.reconnectTimer),this.reconnectTimer=setTimeout(()=>{this.retries++,this._openSocket()},e),this.reconnectTimer.unref&&this.reconnectTimer.unref(),i("reconnecting socket in %s ms",e)}_send(e){if(!this.destroyed){this.expectingResponse=!0;const t=JSON.stringify(e);i("send %s",t),this.socket.send(t)}}_generateOffers(e,t){function n(){const e=d(20).toString("hex");i("creating peer (from _generateOffers)");const t=o.peers[e]=o._createPeer({initiator:!0});t.once("signal",t=>{a.push({offer:t,offer_id:c.hexToBinary(e)}),r()}),t.trackerTimeout=setTimeout(()=>{i("tracker timeout: destroying peer"),t.trackerTimeout=null,delete o.peers[e],t.destroy()},50000),t.trackerTimeout.unref&&t.trackerTimeout.unref()}function r(){a.length===e&&(i("generated %s offers",e),t(a))}const o=this,a=[];i("generating %s offers",e);for(let r=0;r<e;++r)n();r()}_createPeer(e){function t(e){r.client.emit("warning",new Error(`Connection error: ${e.message}`)),o.destroy()}function n(){o.removeListener("error",t),o.removeListener("connect",n)}const r=this;e=Object.assign({trickle:!1,config:r.client._rtcConfig,wrtc:r.client._wrtc},e);const o=new a(e);return o.once("error",t),o.once("connect",n),o}}p.prototype.DEFAULT_ANNOUNCE_INTERVAL=30000,p._socketPool=f,t.exports=p},{"../common":18,"./tracker":16,debug:33,randombytes:74,"simple-peer":99,"simple-websocket":101}],18:[function(e,t,n){var r=e("safe-buffer").Buffer;n.DEFAULT_ANNOUNCE_PEERS=50,n.MAX_ANNOUNCE_PEERS=82,n.binaryToHex=function(e){return"string"!=typeof 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n=e.toString("ascii",0,4),r=e.readUInt32BE(4),o=[],a=8;a<e.length;a+=4)o.push(e.toString("ascii",a,a+4));return{brand:n,brandVersion:r,compatibleBrands:o}},n.ftyp.encodingLength=function(e){return 8+4*(e.compatibleBrands||[]).length},n.mvhd={},n.mvhd.encode=function(e,t,r){return t=t?t.slice(r):w(96),i(e.ctime||new Date,t,0),i(e.mtime||new Date,t,4),t.writeUInt32BE(e.timeScale||0,8),t.writeUInt32BE(e.duration||0,12),d(e.preferredRate||0,t,16),l(e.preferredVolume||0,t,20),o(t,22,32),c(e.matrix,t,32),t.writeUInt32BE(e.previewTime||0,68),t.writeUInt32BE(e.previewDuration||0,72),t.writeUInt32BE(e.posterTime||0,76),t.writeUInt32BE(e.selectionTime||0,80),t.writeUInt32BE(e.selectionDuration||0,84),t.writeUInt32BE(e.currentTime||0,88),t.writeUInt32BE(e.nextTrackId||0,92),n.mvhd.encode.bytes=96,t},n.mvhd.decode=function(e,t){return e=e.slice(t),{ctime:h(e,0),mtime:h(e,4),timeScale:e.readUInt32BE(8),duration:e.readUInt32BE(12),preferredRate:m(e,16),preferredVolume:g(e,20),matrix:f(e.slice(32,68)),previewTime:e.readUInt32BE(68),previewDuration:e.readUInt32BE(72),posterTime:e.readUInt32BE(76),selectionTime:e.readUInt32BE(80),selectionDuration:e.readUInt32BE(84),currentTime:e.readUInt32BE(88),nextTrackId:e.readUInt32BE(92)}},n.mvhd.encodingLength=function(){return 96},n.tkhd={},n.tkhd.encode=function(e,t,r){return t=t?t.slice(r):w(80),i(e.ctime||new Date,t,0),i(e.mtime||new Date,t,4),t.writeUInt32BE(e.trackId||0,8),o(t,12,16),t.writeUInt32BE(e.duration||0,16),o(t,20,28),t.writeUInt16BE(e.layer||0,28),t.writeUInt16BE(e.alternateGroup||0,30),t.writeUInt16BE(e.volume||0,32),c(e.matrix,t,36),t.writeUInt32BE(e.trackWidth||0,72),t.writeUInt32BE(e.trackHeight||0,76),n.tkhd.encode.bytes=80,t},n.tkhd.decode=function(e,t){return e=e.slice(t),{ctime:h(e,0),mtime:h(e,4),trackId:e.readUInt32BE(8),duration:e.readUInt32BE(16),layer:e.readUInt16BE(28),alternateGroup:e.readUInt16BE(30),volume:e.readUInt16BE(32),matrix:f(e.slice(36,72)),trackWidth:e.readUInt32BE(72),trackHeight:e.readUInt32BE(76)}},n.tkhd.encodingLength=function(){return 80},n.mdhd={},n.mdhd.encode=function(e,t,r){return 1===e.version?(t=t?t.slice(r):w(32),a(e.ctime||new Date,t,0),a(e.mtime||new Date,t,8),t.writeUInt32BE(e.timeScale||0,16),t.writeUIntBE(e.duration||0,20,6),t.writeUInt16BE(e.language||0,28),t.writeUInt16BE(e.quality||0,30),n.mdhd.encode.bytes=32,t):(t=t?t.slice(r):w(20),i(e.ctime||new Date,t,0),i(e.mtime||new Date,t,4),t.writeUInt32BE(e.timeScale||0,8),t.writeUInt32BE(e.duration||0,12),t.writeUInt16BE(e.language||0,16),t.writeUInt16BE(e.quality||0,18),n.mdhd.encode.bytes=20,t)},n.mdhd.decode=function(e,t,n){e=e.slice(t);return 20!=n-t?{ctime:p(e,0),mtime:p(e,8),timeScale:e.readUInt32BE(16),duration:e.readUIntBE(20,6),language:e.readUInt16BE(28),quality:e.readUInt16BE(30)}:{ctime:h(e,0),mtime:h(e,4),timeScale:e.readUInt32BE(8),duration:e.readUInt32BE(12),language:e.readUInt16BE(16),quality:e.readUInt16BE(18)}},n.mdhd.encodingLength=function(e){return 1===e.version?32:20},n.vmhd={},n.vmhd.encode=function(e,t,r){t=t?t.slice(r):w(8),t.writeUInt16BE(e.graphicsMode||0,0);var o=e.opcolor||[0,0,0];return t.writeUInt16BE(o[0],2),t.writeUInt16BE(o[1],4),t.writeUInt16BE(o[2],6),n.vmhd.encode.bytes=8,t},n.vmhd.decode=function(e,t){return e=e.slice(t),{graphicsMode:e.readUInt16BE(0),opcolor:[e.readUInt16BE(2),e.readUInt16BE(4),e.readUInt16BE(6)]}},n.vmhd.encodingLength=function(){return 8},n.smhd={},n.smhd.encode=function(e,t,r){return t=t?t.slice(r):w(4),t.writeUInt16BE(e.balance||0,0),o(t,2,4),n.smhd.encode.bytes=4,t},n.smhd.decode=function(e,t){return e=e.slice(t),{balance:e.readUInt16BE(0)}},n.smhd.encodingLength=function(){return 4},n.stsd={},n.stsd.encode=function(e,t,r){t=t?t.slice(r):w(n.stsd.encodingLength(e));var o=e.entries||[];t.writeUInt32BE(o.length,0);for(var a=4,d=0,s;d<o.length;d++)s=o[d],b.encode(s,t,a),a+=b.encode.bytes;return n.stsd.encode.bytes=a,t},n.stsd.decode=function(e,t,n){e=e.slice(t);for(var r=e.readUInt32BE(0),o=Array(r),a=4,d=0,s;d<r;d++)s=b.decode(e,a,n),o[d]=s,a+=s.length;return{entries:o}},n.stsd.encodingLength=function(e){var t=4;if(!e.entries)return t;for(var n=0;n<e.entries.length;n++)t+=b.encodingLength(e.entries[n]);return t},n.avc1=n.VisualSampleEntry={},n.VisualSampleEntry.encode=function(e,t,r){t=t?t.slice(r):w(n.VisualSampleEntry.encodingLength(e)),o(t,0,6),t.writeUInt16BE(e.dataReferenceIndex||0,6),o(t,8,24),t.writeUInt16BE(e.width||0,24),t.writeUInt16BE(e.height||0,26),t.writeUInt32BE(e.hResolution||4718592,28),t.writeUInt32BE(e.vResolution||4718592,32),o(t,36,40),t.writeUInt16BE(e.frameCount||1,40);var i=e.compressorName||"",a=s(i.length,31);t.writeUInt8(a,42),t.write(i,43,a,"utf8"),t.writeUInt16BE(e.depth||24,74),t.writeInt16BE(-1,76);var d=78,l=e.children||[];l.forEach(function(e){b.encode(e,t,d),d+=b.encode.bytes}),n.VisualSampleEntry.encode.bytes=d},n.VisualSampleEntry.decode=function(e,t,n){e=e.slice(t);for(var r=n-t,o=s(e.readUInt8(42),31),i={dataReferenceIndex:e.readUInt16BE(6),width:e.readUInt16BE(24),height:e.readUInt16BE(26),hResolution:e.readUInt32BE(28),vResolution:e.readUInt32BE(32),frameCount:e.readUInt16BE(40),compressorName:e.toString("utf8",43,43+o),depth:e.readUInt16BE(74),children:[]},a=78;8<=r-a;){var d=b.decode(e,a,r);i.children.push(d),i[d.type]=d,a+=d.length}return i},n.VisualSampleEntry.encodingLength=function(e){var t=78,n=e.children||[];return n.forEach(function(e){t+=b.encodingLength(e)}),t},n.avcC={},n.avcC.encode=function(e,t,r){t=t?t.slice(r):w(e.buffer.length),e.buffer.copy(t),n.avcC.encode.bytes=e.buffer.length},n.avcC.decode=function(e,t,n){return e=e.slice(t,n),{mimeCodec:e.toString("hex",1,4),buffer:k(e)}},n.avcC.encodingLength=function(e){return e.buffer.length},n.mp4a=n.AudioSampleEntry={},n.AudioSampleEntry.encode=function(e,t,r){t=t?t.slice(r):w(n.AudioSampleEntry.encodingLength(e)),o(t,0,6),t.writeUInt16BE(e.dataReferenceIndex||0,6),o(t,8,16),t.writeUInt16BE(e.channelCount||2,16),t.writeUInt16BE(e.sampleSize||16,18),o(t,20,24),t.writeUInt32BE(e.sampleRate||0,24);var i=28,a=e.children||[];a.forEach(function(e){b.encode(e,t,i),i+=b.encode.bytes}),n.AudioSampleEntry.encode.bytes=i},n.AudioSampleEntry.decode=function(e,t,n){e=e.slice(t,n);for(var r=n-t,o={dataReferenceIndex:e.readUInt16BE(6),channelCount:e.readUInt16BE(16),sampleSize:e.readUInt16BE(18),sampleRate:e.readUInt32BE(24),children:[]},i=28;8<=r-i;){var a=b.decode(e,i,r);o.children.push(a),o[a.type]=a,i+=a.length}return o},n.AudioSampleEntry.encodingLength=function(e){var t=28,n=e.children||[];return n.forEach(function(e){t+=b.encodingLength(e)}),t},n.esds={},n.esds.encode=function(e,t,r){t=t?t.slice(r):w(e.buffer.length),e.buffer.copy(t,0),n.esds.encode.bytes=e.buffer.length},n.esds.decode=function(e,t,n){e=e.slice(t,n);var r=y.Descriptor.decode(e,0,e.length),o="ESDescriptor"===r.tagName?r:{},i=o.DecoderConfigDescriptor||{},a=i.oti||0,d=i.DecoderSpecificInfo,s=d?(248&d.buffer.readUInt8(0))>>3:0,l=null;return a&&(l=a.toString(16),s&&(l+="."+s)),{mimeCodec:l,buffer:k(e.slice(0))}},n.esds.encodingLength=function(e){return e.buffer.length},n.stsz={},n.stsz.encode=function(e,t,r){var o=e.entries||[];t=t?t.slice(r):w(n.stsz.encodingLength(e)),t.writeUInt32BE(0,0),t.writeUInt32BE(o.length,4);for(var a=0;a<o.length;a++)t.writeUInt32BE(o[a],4*a+8);return n.stsz.encode.bytes=8+4*o.length,t},n.stsz.decode=function(e,t){e=e.slice(t);for(var n=e.readUInt32BE(0),r=e.readUInt32BE(4),o=Array(r),a=0;a<r;a++)o[a]=0===n?e.readUInt32BE(4*a+8):n;return{entries:o}},n.stsz.encodingLength=function(e){return 8+4*e.entries.length},n.stss=n.stco={},n.stco.encode=function(e,t,r){var o=e.entries||[];t=t?t.slice(r):w(n.stco.encodingLength(e)),t.writeUInt32BE(o.length,0);for(var a=0;a<o.length;a++)t.writeUInt32BE(o[a],4*a+4);return n.stco.encode.bytes=4+4*o.length,t},n.stco.decode=function(e,t){e=e.slice(t);for(var n=e.readUInt32BE(0),r=Array(n),o=0;o<n;o++)r[o]=e.readUInt32BE(4*o+4);return{entries:r}},n.stco.encodingLength=function(e){return 4+4*e.entries.length},n.co64={},n.co64.encode=function(e,t,r){var o=e.entries||[];t=t?t.slice(r):w(n.co64.encodingLength(e)),t.writeUInt32BE(o.length,0);for(var a=0;a<o.length;a++)x.encode(o[a],t,8*a+4);return n.co64.encode.bytes=4+8*o.length,t},n.co64.decode=function(e,t){e=e.slice(t);for(var n=e.readUInt32BE(0),r=Array(n),o=0;o<n;o++)r[o]=x.decode(e,8*o+4);return{entries:r}},n.co64.encodingLength=function(e){return 4+8*e.entries.length},n.stts={},n.stts.encode=function(e,t,r){var o=e.entries||[];t=t?t.slice(r):w(n.stts.encodingLength(e)),t.writeUInt32BE(o.length,0);for(var a=0,d;a<o.length;a++)d=8*a+4,t.writeUInt32BE(o[a].count||0,d),t.writeUInt32BE(o[a].duration||0,d+4);return n.stts.encode.bytes=4+8*e.entries.length,t},n.stts.decode=function(e,t){e=e.slice(t);for(var n=e.readUInt32BE(0),r=Array(n),o=0,a;o<n;o++)a=8*o+4,r[o]={count:e.readUInt32BE(a),duration:e.readUInt32BE(a+4)};return{entries:r}},n.stts.encodingLength=function(e){return 4+8*e.entries.length},n.ctts={},n.ctts.encode=function(e,t,r){var o=e.entries||[];t=t?t.slice(r):w(n.ctts.encodingLength(e)),t.writeUInt32BE(o.length,0);for(var a=0,d;a<o.length;a++)d=8*a+4,t.writeUInt32BE(o[a].count||0,d),t.writeUInt32BE(o[a].compositionOffset||0,d+4);return n.ctts.encode.bytes=4+8*o.length,t},n.ctts.decode=function(e,t){e=e.slice(t);for(var n=e.readUInt32BE(0),r=Array(n),o=0,a;o<n;o++)a=8*o+4,r[o]={count:e.readUInt32BE(a),compositionOffset:e.readInt32BE(a+4)};return{entries:r}},n.ctts.encodingLength=function(e){return 4+8*e.entries.length},n.stsc={},n.stsc.encode=function(e,t,r){var o=e.entries||[];t=t?t.slice(r):w(n.stsc.encodingLength(e)),t.writeUInt32BE(o.length,0);for(var a=0,d;a<o.length;a++)d=12*a+4,t.writeUInt32BE(o[a].firstChunk||0,d),t.writeUInt32BE(o[a].samplesPerChunk||0,d+4),t.writeUInt32BE(o[a].sampleDescriptionId||0,d+8);return n.stsc.encode.bytes=4+12*o.length,t},n.stsc.decode=function(e,t){e=e.slice(t);for(var n=e.readUInt32BE(0),r=Array(n),o=0,a;o<n;o++)a=12*o+4,r[o]={firstChunk:e.readUInt32BE(a),samplesPerChunk:e.readUInt32BE(a+4),sampleDescriptionId:e.readUInt32BE(a+8)};return{entries:r}},n.stsc.encodingLength=function(e){return 4+12*e.entries.length},n.dref={},n.dref.encode=function(e,t,r){t=t?t.slice(r):w(n.dref.encodingLength(e));var o=e.entries||[];t.writeUInt32BE(o.length,0);for(var a=4,d=0;d<o.length;d++){var s=o[d],l=(s.buf?s.buf.length:0)+4+4;t.writeUInt32BE(l,a),a+=4,t.write(s.type,a,4,"ascii"),a+=4,s.buf&&(s.buf.copy(t,a),a+=s.buf.length)}return n.dref.encode.bytes=a,t},n.dref.decode=function(e,t){e=e.slice(t);for(var n=e.readUInt32BE(0),r=Array(n),o=4,a=0;a<n;a++){var d=e.readUInt32BE(o),s=e.toString("ascii",o+4,o+8),l=e.slice(o+8,o+d);o+=d,r[a]={type:s,buf:l}}return{entries:r}},n.dref.encodingLength=function(e){var t=4;if(!e.entries)return t;for(var n=0,r;n<e.entries.length;n++)r=e.entries[n].buf,t+=(r?r.length:0)+4+4;return t},n.elst={},n.elst.encode=function(e,t,r){var o=e.entries||[];t=t?t.slice(r):w(n.elst.encodingLength(e)),t.writeUInt32BE(o.length,0);for(var 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s.decodeWithoutHeaders(r,e,t+r.headersLen,t+r.length)},s.decodeWithoutHeaders=function(e,t,n,r){n=n||0,r=r||t.length;var o=e.type,d={};if(l[o]){d.otherBoxes=[];for(var c=l[o],u=n,f;8<=r-u;)if(f=s.decode(t,u,r),u+=f.length,0<=c.indexOf(f.type))d[f.type]=f;else if(0<=c.indexOf(f.type+"s")){var p=f.type+"s",h=d[p]=d[p]||[];h.push(f)}else d.otherBoxes.push(f)}else if(a[o]){var m=a[o].decode;d=m(t,n,r)}else d.buffer=i(t.slice(n,r));return d.length=e.length,d.contentLen=e.contentLen,d.type=e.type,d.version=e.version,d.flags=e.flags,d},s.encodingLength=function(e){var t=e.type,n=8;if(a.fullBoxes[t]&&(n+=4),l[t]){var r=l[t];r.forEach(function(t){if(5===t.length){var r=e[t]||[];t=t.substr(0,4),r.forEach(function(e){e.type=t,n+=s.encodingLength(e)})}else if(e[t]){var o=e[t];o.type=t,n+=s.encodingLength(o)}}),e.otherBoxes&&e.otherBoxes.forEach(function(e){n+=s.encodingLength(e)})}else if(a[t])n+=a[t].encodingLength(e);else if(e.buffer)n+=e.buffer.length;else throw new Error("Either `type` must be 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t.long?i(e):o(e);throw new Error("val is not a non-empty string or a valid number. val="+JSON.stringify(e))}},{}],59:[function(e,t){function n(e,t){var i=this;return i instanceof n?void(d.Readable.call(i,t),i.destroyed=!1,i._drained=!1,i._forwarding=!1,i._current=null,i._toStreams2=t&&t.objectMode?r:o,"function"==typeof e?i._queue=e:(i._queue=e.map(i._toStreams2),i._queue.forEach(function(e){"function"!=typeof e&&i._attachErrorListener(e)})),i._next()):new n(e,t)}function r(e){return i(e,{objectMode:!0,highWaterMark:16})}function o(e){return i(e)}function i(e,t){if(!e||"function"==typeof e||e._readableState)return e;var n=new d.Readable(t).wrap(e);return e.destroy&&(n.destroy=e.destroy.bind(e)),n}t.exports=n;var a=e("inherits"),d=e("readable-stream");a(n,d.Readable),n.obj=function(e){return new n(e,{objectMode:!0,highWaterMark:16})},n.prototype._read=function(){this._drained=!0,this._forward()},n.prototype._forward=function(){if(!this._forwarding&&this._drained&&this._current){this._forwarding=!0;for(var e;null!==(e=this._current.read())&&this._drained;)this._drained=this.push(e);this._forwarding=!1}},n.prototype.destroy=function(e){this.destroyed||(this.destroyed=!0,this._current&&this._current.destroy&&this._current.destroy(),"function"!=typeof this._queue&&this._queue.forEach(function(e){e.destroy&&e.destroy()}),e&&this.emit("error",e),this.emit("close"))},n.prototype._next=function(){var e=this;if(e._current=null,"function"==typeof e._queue)e._queue(function(t,n){return t?e.destroy(t):void(n=e._toStreams2(n),e._attachErrorListener(n),e._gotNextStream(n))});else{var t=e._queue.shift();"function"==typeof t&&(t=e._toStreams2(t()),e._attachErrorListener(t)),e._gotNextStream(t)}},n.prototype._gotNextStream=function(e){function t(){o._forward()}function 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t=this;if(!e.channel)return t.destroy(i("Data channel event is missing `channel` property","ERR_DATA_CHANNEL"));t._channel=e.channel,t._channel.binaryType="arraybuffer","number"==typeof t._channel.bufferedAmountLowThreshold&&(t._channel.bufferedAmountLowThreshold=f),t.channelName=t._channel.label,t._channel.onmessage=function(e){t._onChannelMessage(e)},t._channel.onbufferedamountlow=function(){t._onChannelBufferedAmountLow()},t._channel.onopen=function(){t._onChannelOpen()},t._channel.onclose=function(){t._onChannelClose()},t._channel.onerror=function(e){t.destroy(i(e,"ERR_DATA_CHANNEL"))};var n=!1;t._closingInterval=setInterval(function(){t._channel&&"closing"===t._channel.readyState?(n&&t._onChannelClose(),n=!0):n=!1},5000)},r.prototype._read=function(){},r.prototype._write=function(e,t,n){var r=this;if(r.destroyed)return n(i("cannot write after peer is destroyed","ERR_DATA_CHANNEL"));if(r._connected){try{r.send(e)}catch(e){return r.destroy(i(e,"ERR_DATA_CHANNEL"))}r._channel.bufferedAmount>f?(r._debug("start backpressure: bufferedAmount %d",r._channel.bufferedAmount),r._cb=n):n(null)}else r._debug("write before connect"),r._chunk=e,r._cb=n},r.prototype._onFinish=function(){function e(){setTimeout(function(){t.destroy()},1e3)}var t=this;t.destroyed||(t._connected?e():t.once("connect",e))},r.prototype._startIceCompleteTimeout=function(){var e=this;e.destroyed||e._iceCompleteTimer||(e._debug("started iceComplete timeout"),e._iceCompleteTimer=setTimeout(function(){e._iceComplete||(e._iceComplete=!0,e._debug("iceComplete timeout completed"),e.emit("iceTimeout"),e.emit("_iceComplete"))},e.iceCompleteTimeout))},r.prototype._createOffer=function(){var e=this;e.destroyed||e._pc.createOffer(e.offerOptions).then(function(t){function n(){if(!e.destroyed){var n=e._pc.localDescription||t;e._debug("signal"),e.emit("signal",{type:n.type,sdp:n.sdp})}}e.destroyed||(!e.trickle&&!e.allowHalfTrickle&&(t.sdp=o(t.sdp)),t.sdp=e.sdpTransform(t.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(i(t,"ERR_SET_LOCAL_DESCRIPTION"))}))}).catch(function(t){e.destroy(i(t,"ERR_CREATE_OFFER"))})},r.prototype._requestMissingTransceivers=function(){var e=this;e._pc.getTransceivers&&e._pc.getTransceivers().forEach(t=>{t.mid||!t.sender.track||t.requested||(t.requested=!0,e.addTransceiver(t.sender.track.kind))})},r.prototype._createAnswer=function(){var e=this;e.destroyed||e._pc.createAnswer(e.answerOptions).then(function(t){function n(){if(!e.destroyed){var 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e.googLocalAddress&&(n=e.googLocalAddress.split(":"),t.localAddress=n[0],t.localPort=+n[1]),t.localAddress&&(t.localFamily=t.localAddress.includes(":")?"IPv6":"IPv4");var r=a[e.remoteCandidateId];r&&(r.ip||r.address)?(t.remoteAddress=r.ip||r.address,t.remotePort=+r.port):r&&r.ipAddress?(t.remoteAddress=r.ipAddress,t.remotePort=+r.portNumber):"string"==typeof e.googRemoteAddress&&(r=e.googRemoteAddress.split(":"),t.remoteAddress=r[0],t.remotePort=+r[1]),t.remoteAddress&&(t.remoteFamily=t.remoteAddress.includes(":")?"IPv6":"IPv4"),t._debug("connect local: %s:%s remote: %s:%s",t.localAddress,t.localPort,t.remoteAddress,t.remotePort)}if(!t.destroyed){n&&(r=[]);var a={},d={},s={},l=!1;if(r.forEach(function(e){("remotecandidate"===e.type||"remote-candidate"===e.type)&&(a[e.id]=e),("localcandidate"===e.type||"local-candidate"===e.type)&&(d[e.id]=e),("candidatepair"===e.type||"candidate-pair"===e.type)&&(s[e.id]=e)}),r.forEach(function(e){"transport"===e.type&&e.selectedCandidatePairId&&o(s[e.selectedCandidatePairId]),("googCandidatePair"===e.type&&"true"===e.googActiveConnection||("candidatepair"===e.type||"candidate-pair"===e.type)&&e.selected)&&o(e)}),!l&&(!Object.keys(s).length||Object.keys(d).length))return void setTimeout(e,100);if(t._connecting=!1,t._connected=!0,t._chunk){try{t.send(t._chunk)}catch(e){return t.destroy(i(e,"ERR_DATA_CHANNEL"))}t._chunk=null,t._debug("sent chunk from \"write before connect\"");var c=t._cb;t._cb=null,c(null)}"number"!=typeof t._channel.bufferedAmountLowThreshold&&(t._interval=setInterval(function(){t._onInterval()},150),t._interval.unref&&t._interval.unref()),t._debug("connect"),t.emit("connect")}})}var t=this;t._debug("maybeReady pc %s channel %s",t._pcReady,t._channelReady);t._connected||t._connecting||!t._pcReady||!t._channelReady||(t._connecting=!0,e())},r.prototype._onInterval=function(){var e=this;e._cb&&e._channel&&!(e._channel.bufferedAmount>f)&&e._onChannelBufferedAmountLow()},r.prototype._onSignalingStateChange=function(){var e=this;e.destroyed||("stable"===e._pc.signalingState&&!e._firstStable&&(e._isNegotiating=!1,e._debug("flushing sender queue",e._sendersAwaitingStable),e._sendersAwaitingStable.forEach(function(t){e._pc.removeTrack(t),e._queuedNegotiation=!0}),e._sendersAwaitingStable=[],e._queuedNegotiation&&(e._debug("flushing negotiation queue"),e._queuedNegotiation=!1,e._needsNegotiation()),e._debug("negotiate"),e.emit("negotiate")),e._firstStable=!1,e._debug("signalingStateChange %s",e._pc.signalingState),e.emit("signalingStateChange",e._pc.signalingState))},r.prototype._onIceCandidate=function(e){var t=this;t.destroyed||(e.candidate&&t.trickle?t.emit("signal",{candidate:{candidate:e.candidate.candidate,sdpMLineIndex:e.candidate.sdpMLineIndex,sdpMid:e.candidate.sdpMid}}):!e.candidate&&!t._iceComplete&&(t._iceComplete=!0,t.emit("_iceComplete")),e.candidate&&t._startIceCompleteTimeout())},r.prototype._onChannelMessage=function(e){var t=this;if(!t.destroyed){var r=e.data;r instanceof ArrayBuffer&&(r=n.from(r)),t.push(r)}},r.prototype._onChannelBufferedAmountLow=function(){var e=this;if(!e.destroyed&&e._cb){e._debug("ending backpressure: bufferedAmount %d",e._channel.bufferedAmount);var t=e._cb;e._cb=null,t(null)}},r.prototype._onChannelOpen=function(){var e=this;e._connected||e.destroyed||(e._debug("on channel open"),e._channelReady=!0,e._maybeReady())},r.prototype._onChannelClose=function(){var e=this;e.destroyed||(e._debug("on channel close"),e.destroy())},r.prototype._onTrack=function(e){var t=this;t.destroyed||e.streams.forEach(function(n){t._debug("on 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n.search=e.search,n.query=e.query,d.isNull(n.pathname)&&d.isNull(n.search)||(n.path=(n.pathname?n.pathname:"")+(n.search?n.search:"")),n.href=n.format(),n}if(!C.length)return n.pathname=null,n.path=n.search?"/"+n.search:null,n.href=n.format(),n;for(var T=C.slice(-1)[0],R=(n.host||e.host||1<C.length)&&("."===T||".."===T)||""===T,B=0,A=C.length;0<=A;A--)T=C[A],"."===T?C.splice(A,1):".."===T?(C.splice(A,1),B++):B&&(C.splice(A,1),B--);if(!S&&!E)for(;B--;B)C.unshift("..");S&&""!==C[0]&&(!C[0]||"/"!==C[0].charAt(0))&&C.unshift(""),R&&"/"!==C.join("/").substr(-1)&&C.push("");var U=""===C[0]||C[0]&&"/"===C[0].charAt(0);if(L){n.hostname=n.host=U?"":C.length?C.shift():"";var I=!!(n.host&&0<n.host.indexOf("@"))&&n.host.split("@");I&&(n.auth=I.shift(),n.host=n.hostname=I.shift())}return S=S||n.host&&C.length,S&&!U&&C.unshift(""),C.length?n.pathname=C.join("/"):(n.pathname=null,n.path=null),d.isNull(n.pathname)&&d.isNull(n.search)||(n.path=(n.pathname?n.pathname:"")+(n.search?n.search:"")),n.auth=e.auth||n.auth,n.slashes=n.slashes||e.slashes,n.href=n.format(),n},r.prototype.parseHost=function(){var e=this.host,t=u.exec(e);t&&(t=t[0],":"!==t&&(this.port=t.substr(1)),e=e.substr(0,e.length-t.length)),e&&(this.hostname=e)}},{"./util":135,punycode:69,querystring:72}],135:[function(e,t){'use strict';t.exports={isString:function(e){return"string"==typeof e},isObject:function(e){return"object"==typeof e&&null!==e},isNull:function(e){return null===e},isNullOrUndefined:function(e){return null==e}}},{}],136:[function(e,t){(function(n){const{EventEmitter:r}=e("events"),o=e("bencode"),i=e("bitfield"),d=e("debug")("ut_metadata"),s=e("simple-sha1"),l=1E3,c=16384;t.exports=e=>{class t extends r{constructor(t){super(),this._wire=t,this._fetching=!1,this._metadataComplete=!1,this._metadataSize=null,this._remainingRejects=null,this._bitfield=new i(0,{grow:l}),n.isBuffer(e)&&this.setMetadata(e)}onHandshake(e,t,n){this._infoHash=e}onExtendedHandshake(e){return e.m&&e.m.ut_metadata?e.metadata_size?"number"!=typeof e.metadata_size||1E7<e.metadata_size||0>=e.metadata_size?this.emit("warning",new Error("Peer gave invalid metadata size")):void(this._metadataSize=e.metadata_size,this._numPieces=a(this._metadataSize/c),this._remainingRejects=2*this._numPieces,this._fetching&&this._requestPieces()):this.emit("warning",new Error("Peer does not have metadata")):this.emit("warning",new Error("Peer does not support ut_metadata"))}onMessage(e){let t,n;try{const r=e.toString(),i=r.indexOf("ee")+2;t=o.decode(r.substring(0,i)),n=e.slice(i)}catch(e){return}switch(t.msg_type){case 0:this._onRequest(t.piece);break;case 1:this._onData(t.piece,n,t.total_size);break;case 2:this._onReject(t.piece);}}fetch(){this._metadataComplete||(this._fetching=!0,this._metadataSize&&this._requestPieces())}cancel(){this._fetching=!1}setMetadata(e){if(this._metadataComplete)return!0;d("set metadata");try{const t=o.decode(e).info;t&&(e=o.encode(t))}catch(e){}return!(this._infoHash&&this._infoHash!==s.sync(e))&&(this.cancel(),this.metadata=e,this._metadataComplete=!0,this._metadataSize=this.metadata.length,this._wire.extendedHandshake.metadata_size=this._metadataSize,this.emit("metadata",o.encode({info:o.decode(this.metadata)})),!0)}_send(e,t){let r=o.encode(e);n.isBuffer(t)&&(r=n.concat([r,t])),this._wire.extended("ut_metadata",r)}_request(e){this._send({msg_type:0,piece:e})}_data(e,t,n){const r={msg_type:1,piece:e};"number"==typeof n&&(r.total_size=n),this._send(r,t)}_reject(e){this._send({msg_type:2,piece:e})}_onRequest(e){if(!this._metadataComplete)return void this._reject(e);const t=e*c;let n=t+c;n>this._metadataSize&&(n=this._metadataSize);const r=this.metadata.slice(t,n);this._data(e,r,this._metadataSize)}_onData(e,t,n){t.length>c||(t.copy(this.metadata,e*c),this._bitfield.set(e),this._checkDone())}_onReject(e){0<this._remainingRejects&&this._fetching?(this._request(e),this._remainingRejects-=1):this.emit("warning",new Error("Peer sent \"reject\" too much"))}_requestPieces(){this.metadata=n.alloc(this._metadataSize);for(let e=0;e<this._numPieces;e++)this._request(e)}_checkDone(){let e=!0;for(let t=0;t<this._numPieces;t++)if(!this._bitfield.get(t)){e=!1;break}if(e){const e=this.setMetadata(this.metadata);e||this._failedMetadata()}}_failedMetadata(){this._bitfield=new i(0,{grow:l}),this._remainingRejects-=this._numPieces,0<this._remainingRejects?this._requestPieces():this.emit("warning",new Error("Peer sent invalid metadata"))}}return t.prototype.name="ut_metadata",t}}).call(this,e("buffer").Buffer)},{bencode:11,bitfield:13,buffer:27,debug:33,events:36,"simple-sha1":100}],137:[function(e,t){(function(e){function n(t){try{if(!e.localStorage)return!1}catch(e){return!1}var n=e.localStorage[t];return null!=n&&"true"===(n+"").toLowerCase()}t.exports=function(e,t){function r(){if(!o){if(n("throwDeprecation"))throw new Error(t);else n("traceDeprecation")?console.trace(t):console.warn(t);o=!0}return e.apply(this,arguments)}if(n("noDeprecation"))return e;var o=!1;return r}}).call(this,"undefined"==typeof global?"undefined"==typeof self?"undefined"==typeof window?{}:window:self:global)},{}],138:[function(e,t){(function(n){function o(){return{version:0,flags:0,entries:[]}}const i=e("binary-search"),a=e("events"),d=e("mp4-stream"),s=e("mp4-box-encoding"),l=e("range-slice-stream");class c{constructor(e,t){this._entries=e,this._countName=t||"count",this._index=0,this._offset=0,this.value=this._entries[0]}inc(){this._offset++,this._offset>=this._entries[this._index][this._countName]&&(this._index++,this._offset=0),this.value=this._entries[this._index]}}t.exports=class extends a{constructor(e){super(),this._tracks=[],this._file=e,this._decoder=null,this._findMoov(0)}_findMoov(e){this._decoder&&this._decoder.destroy();let t=0;this._decoder=d.decode();const n=this._file.createReadStream({start:e});n.pipe(this._decoder);const r=o=>{"moov"===o.type?(this._decoder.removeListener("box",r),this._decoder.decode(e=>{n.destroy();try{this._processMoov(e)}catch(e){e.message=`Cannot parse mp4 file: ${e.message}`,this.emit("error",e)}})):o.length<4096?(t+=o.length,this._decoder.ignore()):(this._decoder.removeListener("box",r),t+=o.length,n.destroy(),this._decoder.destroy(),this._findMoov(e+t))};this._decoder.on("box",r)}_processMoov(e){const t=e.traks;this._tracks=[],this._hasVideo=!1,this._hasAudio=!1;for(let n=0;n<t.length;n++){const i=t[n],a=i.mdia.minf.stbl,d=a.stsd.entries[0],s=i.mdia.hdlr.handlerType;let l,u;if("vide"===s&&"avc1"===d.type){if(this._hasVideo)continue;this._hasVideo=!0,l="avc1",d.avcC&&(l+=`.${d.avcC.mimeCodec}`),u=`video/mp4; codecs="${l}"`}else if("soun"===s&&"mp4a"===d.type){if(this._hasAudio)continue;this._hasAudio=!0,l="mp4a",d.esds&&d.esds.mimeCodec&&(l+=`.${d.esds.mimeCodec}`),u=`audio/mp4; codecs="${l}"`}else continue;const f=[];let p=0,h=0,m=0,g=0,_=0,b=0;const y=new c(a.stts.entries);let w=null;a.ctts&&(w=new c(a.ctts.entries));for(let e=0;;){var r=a.stsc.entries[_];const t=a.stsz.entries[p],n=y.value.duration,o=w?w.value.compositionOffset:0;let i=!0;a.stss&&(i=a.stss.entries[e]===p+1);const d=a.stco||a.co64;if(f.push({size:t,duration:n,dts:b,presentationOffset:o,sync:i,offset:g+d.entries[m]}),p++,p>=a.stsz.entries.length)break;if(h++,g+=t,h>=r.samplesPerChunk){h=0,g=0,m++;const e=a.stsc.entries[_+1];e&&m+1>=e.firstChunk&&_++}b+=n,y.inc(),w&&w.inc(),i&&e++}i.mdia.mdhd.duration=0,i.tkhd.duration=0;const k=r.sampleDescriptionId,x={type:"moov",mvhd:e.mvhd,traks:[{tkhd:i.tkhd,mdia:{mdhd:i.mdia.mdhd,hdlr:i.mdia.hdlr,elng:i.mdia.elng,minf:{vmhd:i.mdia.minf.vmhd,smhd:i.mdia.minf.smhd,dinf:i.mdia.minf.dinf,stbl:{stsd:a.stsd,stts:o(),ctts:o(),stsc:o(),stsz:o(),stco:o(),stss:o()}}}}],mvex:{mehd:{fragmentDuration:e.mvhd.duration},trexs:[{trackId:i.tkhd.trackId,defaultSampleDescriptionIndex:k,defaultSampleDuration:0,defaultSampleSize:0,defaultSampleFlags:0}]}};this._tracks.push({fragmentSequence:1,trackId:i.tkhd.trackId,timeScale:i.mdia.mdhd.timeScale,samples:f,currSample:null,currTime:null,moov:x,mime:u})}if(0===this._tracks.length)return void this.emit("error",new Error("no playable tracks"));e.mvhd.duration=0,this._ftyp={type:"ftyp",brand:"iso5",brandVersion:0,compatibleBrands:["iso5"]};const i=s.encode(this._ftyp),a=this._tracks.map(e=>{const t=s.encode(e.moov);return{mime:e.mime,init:n.concat([i,t])}});this.emit("ready",a)}seek(e){if(!this._tracks)throw new Error("Not ready yet; wait for 'ready' event");this._fileStream&&(this._fileStream.destroy(),this._fileStream=null);let t=-1;if(this._tracks.map((n,r)=>{n.outStream&&n.outStream.destroy(),n.inStream&&(n.inStream.destroy(),n.inStream=null);const o=n.outStream=d.encode(),i=this._generateFragment(r,e);if(!i)return o.finalize();(-1===t||i.ranges[0].start<t)&&(t=i.ranges[0].start);const a=e=>{o.destroyed||o.box(e.moof,t=>{if(t)return this.emit("error",t);if(!o.destroyed){const t=n.inStream.slice(e.ranges);t.pipe(o.mediaData(e.length,e=>{if(e)return this.emit("error",e);if(!o.destroyed){const e=this._generateFragment(r);return e?void a(e):o.finalize()}}))}})};a(i)}),0<=t){const e=this._fileStream=this._file.createReadStream({start:t});this._tracks.forEach(n=>{n.inStream=new l(t,{highWaterMark:1e7}),e.pipe(n.inStream)})}return this._tracks.map(e=>e.outStream)}_findSampleBefore(e,t){const n=this._tracks[e],o=r(n.timeScale*t);let a=i(n.samples,o,(e,n)=>{const t=e.dts+e.presentationOffset;return t-n});for(-1===a?a=0:0>a&&(a=-a-2);!n.samples[a].sync;)a--;return a}_generateFragment(e,t){const n=this._tracks[e];let r;if(r=void 0===t?n.currSample:this._findSampleBefore(e,t),r>=n.samples.length)return null;const o=n.samples[r].dts;let i=0;const a=[];for(var d=r;d<n.samples.length;d++){const e=n.samples[d];if(e.sync&&e.dts-o>=n.timeScale*1)break;i+=e.size;const t=a.length-1;0>t||a[t].end!==e.offset?a.push({start:e.offset,end:e.offset+e.size}):a[t].end+=e.size}return n.currSample=d,{moof:this._generateMoof(e,r,d),ranges:a,length:i}}_generateMoof(e,t,n){const r=this._tracks[e],o=[];let i=0;for(let a=t;a<n;a++){const e=r.samples[a];0>e.presentationOffset&&(i=1),o.push({sampleDuration:e.duration,sampleSize:e.size,sampleFlags:e.sync?33554432:16842752,sampleCompositionTimeOffset:e.presentationOffset})}const a={type:"moof",mfhd:{sequenceNumber:r.fragmentSequence++},trafs:[{tfhd:{flags:131072,trackId:r.trackId},tfdt:{baseMediaDecodeTime:r.samples[t].dts},trun:{flags:3841,dataOffset:8,entries:o,version:i}}]};return a.trafs[0].trun.dataOffset+=s.encodingLength(a),a}}}).call(this,e("buffer").Buffer)},{"binary-search":12,buffer:27,events:36,"mp4-box-encoding":54,"mp4-stream":57,"range-slice-stream":75}],139:[function(e,t){function n(e,t,o={}){return this instanceof n?void(this.detailedError=null,this._elem=t,this._elemWrapper=new r(t),this._waitingFired=!1,this._trackMeta=null,this._file=e,this._tracks=null,"none"!==this._elem.preload&&this._createMuxer(),this._onError=()=>{this.detailedError=this._elemWrapper.detailedError,this.destroy()},this._onWaiting=()=>{this._waitingFired=!0,this._muxer?this._tracks&&this._pump():this._createMuxer()},t.autoplay&&(t.preload="auto"),t.addEventListener("waiting",this._onWaiting),t.addEventListener("error",this._onError)):(console.warn("don't invoked VideoStream without 'new'"),new n(e,t,o))}const r=e("mediasource"),o=e("pump"),i=e("./mp4-remuxer");n.prototype={_createMuxer(){this._muxer=new i(this._file),this._muxer.on("ready",e=>{this._tracks=e.map(e=>{const t=this._elemWrapper.createWriteStream(e.mime);t.on("error",e=>{this._elemWrapper.error(e)});const n={muxed:null,mediaSource:t,initFlushed:!1,onInitFlushed:null};return t.write(e.init,e=>{n.initFlushed=!0,n.onInitFlushed&&n.onInitFlushed(e)}),n}),(this._waitingFired||"auto"===this._elem.preload)&&this._pump()}),this._muxer.on("error",e=>{this._elemWrapper.error(e)})},_pump(){const e=this._muxer.seek(this._elem.currentTime,!this._tracks);this._tracks.forEach((t,n)=>{const r=()=>{t.muxed&&(t.muxed.destroy(),t.mediaSource=this._elemWrapper.createWriteStream(t.mediaSource),t.mediaSource.on("error",e=>{this._elemWrapper.error(e)})),t.muxed=e[n],o(t.muxed,t.mediaSource)};t.initFlushed?r():t.onInitFlushed=e=>e?void this._elemWrapper.error(e):void r()})},destroy(){this.destroyed||(this.destroyed=!0,this._elem.removeEventListener("waiting",this._onWaiting),this._elem.removeEventListener("error",this._onError),this._tracks&&this._tracks.forEach(e=>{e.muxed&&e.muxed.destroy()}),this._elem.src="")}},t.exports=n},{"./mp4-remuxer":138,mediasource:50,pump:68}],140:[function(e,t){function n(e,t){function r(){for(var t=Array(arguments.length),n=0;n<t.length;n++)t[n]=arguments[n];var r=e.apply(this,t),o=t[t.length-1];return"function"==typeof r&&r!==o&&Object.keys(o).forEach(function(e){r[e]=o[e]}),r}if(e&&t)return n(e)(t);if("function"!=typeof e)throw new TypeError("need wrapper function");return Object.keys(e).forEach(function(t){r[t]=e[t]}),r}t.exports=n},{}],141:[function(e,t){t.exports=function(){for(var e={},t=0,r;t<arguments.length;t++)for(var o in r=arguments[t],r)n.call(r,o)&&(e[o]=r[o]);return e};var n=Object.prototype.hasOwnProperty},{}],142:[function(e,t){t.exports={version:"0.106.0"}},{}],143:[function(e,t){(function(n,r){function o(e){return"object"==typeof e&&null!=e&&"function"==typeof e.pipe}function i(e){return"undefined"!=typeof FileList&&e instanceof FileList}const{Buffer:a}=e("safe-buffer"),{EventEmitter:d}=e("events"),s=e("simple-concat"),l=e("create-torrent"),c=e("debug")("webtorrent"),u=e("bittorrent-dht/client"),f=e("load-ip-set"),p=e("run-parallel"),h=e("parse-torrent"),m=e("path"),g=e("simple-peer"),_=e("randombytes"),b=e("speedometer"),y=e("./lib/tcp-pool"),w=e("./lib/torrent"),k=e("./package.json").version,x=k.replace(/\d*./g,e=>`0${e%100}`.slice(-2)).slice(0,4);class S extends d{constructor(e={}){super(),this.peerId="string"==typeof e.peerId?e.peerId:a.isBuffer(e.peerId)?e.peerId.toString("hex"):a.from(`-WW${x}-`+_(9).toString("base64")).toString("hex"),this.peerIdBuffer=a.from(this.peerId,"hex"),this.nodeId="string"==typeof e.nodeId?e.nodeId:a.isBuffer(e.nodeId)?e.nodeId.toString("hex"):_(20).toString("hex"),this.nodeIdBuffer=a.from(this.nodeId,"hex"),this._debugId=this.peerId.toString("hex").substring(0,7),this.destroyed=!1,this.listening=!1,this.torrentPort=e.torrentPort||0,this.dhtPort=e.dhtPort||0,this.tracker=e.tracker===void 0?{}:e.tracker,this.torrents=[],this.maxConns=+e.maxConns||55,this._debug("new webtorrent (peerId %s, nodeId %s, port %s)",this.peerId,this.nodeId,this.torrentPort),this.tracker&&("object"!=typeof this.tracker&&(this.tracker={}),e.rtcConfig&&(console.warn("WebTorrent: opts.rtcConfig is deprecated. Use opts.tracker.rtcConfig instead"),this.tracker.rtcConfig=e.rtcConfig),e.wrtc&&(console.warn("WebTorrent: opts.wrtc is deprecated. Use opts.tracker.wrtc instead"),this.tracker.wrtc=e.wrtc),r.WRTC&&!this.tracker.wrtc&&(this.tracker.wrtc=r.WRTC)),"function"==typeof y?this._tcpPool=new y(this):n.nextTick(()=>{this._onListening()}),this._downloadSpeed=b(),this._uploadSpeed=b(),!1!==e.dht&&"function"==typeof u?(this.dht=new u(Object.assign({},{nodeId:this.nodeId},e.dht)),this.dht.once("error",e=>{this._destroy(e)}),this.dht.once("listening",()=>{const e=this.dht.address();e&&(this.dhtPort=e.port)}),this.dht.setMaxListeners(0),this.dht.listen(this.dhtPort)):this.dht=!1,this.enableWebSeeds=!1!==e.webSeeds;const t=()=>{this.destroyed||(this.ready=!0,this.emit("ready"))};"function"==typeof f&&null!=e.blocklist?f(e.blocklist,{headers:{"user-agent":`WebTorrent/${k} (https://webtorrent.io)`}},(e,n)=>e?this.error(`Failed to load blocklist: ${e.message}`):void(this.blocked=n,t())):n.nextTick(t)}get downloadSpeed(){return this._downloadSpeed()}get uploadSpeed(){return this._uploadSpeed()}get progress(){const e=this.torrents.filter(e=>1!==e.progress),t=e.reduce((e,t)=>e+t.downloaded,0),n=e.reduce((e,t)=>e+(t.length||0),0)||1;return t/n}get ratio(){const e=this.torrents.reduce((e,t)=>e+t.uploaded,0),t=this.torrents.reduce((e,t)=>e+t.received,0)||1;return e/t}get(e){if(!(e instanceof w)){let t;try{t=h(e)}catch(e){}if(!t)return null;if(!t.infoHash)throw new Error("Invalid torrent identifier");for(const e of this.torrents)if(e.infoHash===t.infoHash)return e}else if(this.torrents.includes(e))return e;return null}download(e,t,n){return console.warn("WebTorrent: client.download() is deprecated. 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e}(r.info.pieces),a}(n);if(n&&n.infoHash)return n.infoHash=n.infoHash.toLowerCase(),n.announce||(n.announce=[]),"string"==typeof n.announce&&(n.announce=[n.announce]),n.urlList||(n.urlList=[]),n;throw new Error("Invalid torrent identifier")}function l(n,e){return n+e.length}function t(n,e){if(!n)throw new Error(`Torrent is missing required field: ${e}`)}(Zo=a).remote=function(e,d){function r(n){try{t=a(n)}catch(e){return d(e)}t&&t.infoHash?d(null,t):d(new Error("Invalid torrent identifier"))}let t;if("function"!=typeof d)throw new Error("second argument must be a Function");try{t=a(e)}catch(e){}t&&t.infoHash?o.nextTick(()=>{d(null,t)}):"undefined"!=typeof Blob&&e instanceof Blob?zo(e,(n,e)=>n?d(new Error(`Error converting Blob: ${n.message}`)):void r(e)):"function"==typeof nr&&/^https?:/.test(e)?nr.concat({url:e,timeout:3e4,headers:{"user-agent":"WebTorrent (https://webtorrent.io)"}},(o,e,t)=>o?d(new Error(`Error downloading torrent: ${o.message}`)):void r(t)):"function"==typeof St.readFile&&"string"==typeof e?St.readFile(e,(n,e)=>n?d(new Error("Invalid torrent identifier")):void r(e)):o.nextTick(()=>{d(new Error("Invalid torrent identifier"))})},Zo.toMagnetURI=ar.encode,Zo.toTorrentFile=function(t){const r={info:t.info};return r["announce-list"]=(t.announce||[]).map(t=>(r.announce||(r.announce=t),[t=d.from(t,"utf8")])),r["url-list"]=t.urlList||[],void 0!==t.private&&(r.private=+t.private),t.created&&(r["creation date"]=0|t.created.getTime()/1e3),t.createdBy&&(r["created by"]=t.createdBy),t.comment&&(r.comment=t.comment),te.encode(r)},d.alloc(0)}).call(this,pe,p({}).Buffer);var ed=function(){if("undefined"==typeof window)return null;var t={RTCPeerConnection:window.RTCPeerConnection||window.mozRTCPeerConnection||window.webkitRTCPeerConnection,RTCSessionDescription:window.RTCSessionDescription||window.mozRTCSessionDescription||window.webkitRTCSessionDescription,RTCIceCandidate:window.RTCIceCandidate||window.mozRTCIceCandidate||window.webkitRTCIceCandidate};return t.RTCPeerConnection?t:null},ur={};(function(d,e){"use strict";var a=j.Buffer,n=e.crypto||e.msCrypto;ur=n&&n.getRandomValues?function(e,t){if(4294967295<e)throw new RangeError("requested too many random bytes");var r=a.allocUnsafe(e);if(0<e)if(65536<e)for(var i=0;i<e;i+=65536)n.getRandomValues(r.slice(i,i+65536));else n.getRandomValues(r);return"function"==typeof t?d.nextTick(function(){t(null,r)}):r}:function(){throw new Error("Secure random number generation is not supported by this browser.\nUse Chrome, Firefox or Internet Explorer 11")}}).call(this,pe,"undefined"==typeof global?"undefined"==typeof self?"undefined"==typeof window?{}:window:self:global);var td={};(function(o){function n(r){var o=this;if(!(o instanceof n))return new n(r);if(o._id=ur(4).toString("hex").slice(0,7),o._debug("new peer %o",r),r=Object.assign({allowHalfOpen:!1},r),st.Duplex.call(o,r),o.channelName=r.initiator?r.channelName||ur(20).toString("hex"):null,o.initiator=r.initiator||!1,o.channelConfig=r.channelConfig||n.channelConfig,o.config=Object.assign({},n.config,r.config),o.offerOptions=r.offerOptions||{},o.answerOptions=r.answerOptions||{},o.sdpTransform=r.sdpTransform||function(t){return t},o.streams=r.streams||(r.stream?[r.stream]:[]),o.trickle=void 0===r.trickle||r.trickle,o.allowHalfTrickle=void 0!==r.allowHalfTrickle&&r.allowHalfTrickle,o.iceCompleteTimeout=r.iceCompleteTimeout||5000,o.destroyed=!1,o._connected=!1,o.remoteAddress=void 0,o.remoteFamily=void 0,o.remotePort=void 0,o.localAddress=void 0,o.localFamily=void 0,o.localPort=void 0,o._wrtc=r.wrtc&&"object"==typeof r.wrtc?r.wrtc:ed(),!o._wrtc)throw"undefined"==typeof window?d("No WebRTC support: Specify `opts.wrtc` option in this environment","ERR_WEBRTC_SUPPORT"):d("No WebRTC support: Not a supported browser","ERR_WEBRTC_SUPPORT");o._pcReady=!1,o._channelReady=!1,o._iceComplete=!1,o._iceCompleteTimer=null,o._channel=null,o._pendingCandidates=[],o._isNegotiating=!o.initiator,o._batchedNegotiation=!1,o._queuedNegotiation=!1,o._sendersAwaitingStable=[],o._senderMap=new Map,o._firstStable=!0,o._closingInterval=null,o._remoteTracks=[],o._remoteStreams=[],o._chunk=null,o._cb=null,o._interval=null;try{o._pc=new o._wrtc.RTCPeerConnection(o.config)}catch(e){return void setTimeout(()=>o.destroy(e),0)}o._isReactNativeWebrtc="number"==typeof o._pc._peerConnectionId,o._pc.oniceconnectionstatechange=function(){o._onIceStateChange()},o._pc.onicegatheringstatechange=function(){o._onIceStateChange()},o._pc.onsignalingstatechange=function(){o._onSignalingStateChange()},o._pc.onicecandidate=function(t){o._onIceCandidate(t)},o.initiator?o._setupData({channel:o._pc.createDataChannel(o.channelName,o.channelConfig)}):o._pc.ondatachannel=function(t){o._setupData(t)},o.streams&&o.streams.forEach(function(t){o.addStream(t)}),o._pc.ontrack=function(t){o._onTrack(t)},o.initiator&&o._needsNegotiation(),o._onFinishBound=function(){o._onFinish()},o.once("finish",o._onFinishBound)}function r(t){return t.replace(/a=ice-options:trickle\s\n/g,"")}function d(r,e){var t=new Error(r);return t.code=e,t}td=n;var a=jo("simple-peer");Me(n,st.Duplex),n.WEBRTC_SUPPORT=!!ed(),n.config={iceServers:[{urls:"stun:stun.l.google.com:19302"},{urls:"stun:global.stun.twilio.com:3478?transport=udp"}],sdpSemantics:"unified-plan"},n.channelConfig={},Object.defineProperty(n.prototype,"bufferSize",{get:function(){return this._channel&&this._channel.bufferedAmount||0}}),Object.defineProperty(n.prototype,"connected",{get:function(){return this._connected&&"open"===this._channel.readyState}}),n.prototype.address=function(){return{port:this.localPort,family:this.localFamily,address:this.localAddress}},n.prototype.signal=function(n){var r=this;if(r.destroyed)throw d("cannot signal after peer is destroyed","ERR_SIGNALING");if("string"==typeof n)try{n=JSON.parse(n)}catch(e){n={}}r._debug("signal()"),n.renegotiate&&r.initiator&&(r._debug("got request to renegotiate"),r._needsNegotiation()),n.transceiverRequest&&r.initiator&&(r._debug("got request for transceiver"),r.addTransceiver(n.transceiverRequest.kind,n.transceiverRequest.init)),n.candidate&&(r._pc.localDescription&&r._pc.localDescription.type&&r._pc.remoteDescription&&r._pc.remoteDescription.type?r._addIceCandidate(n.candidate):r._pendingCandidates.push(n.candidate)),n.sdp&&r._pc.setRemoteDescription(new r._wrtc.RTCSessionDescription(n)).then(function(){r.destroyed||(r._pendingCandidates.forEach(function(t){r._addIceCandidate(t)}),r._pendingCandidates=[],"offer"===r._pc.remoteDescription.type&&r._createAnswer())}).catch(function(t){r.destroy(d(t,"ERR_SET_REMOTE_DESCRIPTION"))}),n.sdp||n.candidate||n.renegotiate||n.transceiverRequest||r.destroy(d("signal() called with invalid signal data","ERR_SIGNALING"))},n.prototype._addIceCandidate=function(r){var o=this,t=new o._wrtc.RTCIceCandidate(r);o._pc.addIceCandidate(t).catch(function(n){!t.address||t.address.endsWith(".local")?("Ignoring unsupported ICE candidate.",console.warn("Ignoring unsupported ICE candidate.")):o.destroy(d(n,"ERR_ADD_ICE_CANDIDATE"))})},n.prototype.send=function(t){this._channel.send(t)},n.prototype.addTransceiver=function(n,e){if(this._debug("addTransceiver()"),this.initiator)try{this._pc.addTransceiver(n,e),this._needsNegotiation()}catch(e){this.destroy(e)}else this.emit("signal",{transceiverRequest:{kind:n,init:e}})},n.prototype.addStream=function(r){var e=this;e._debug("addStream()"),r.getTracks().forEach(function(t){e.addTrack(t,r)})},n.prototype.addTrack=function(o,e){this._debug("addTrack()");var t=this._senderMap.get(o)||new Map,n=t.get(e);n?n.removed?this.destroy(d("Track has been removed. You should enable/disable tracks that you want to re-add.","ERR_SENDER_REMOVED")):this.destroy(d("Track has already been added to that stream.","ERR_SENDER_ALREADY_ADDED")):(n=this._pc.addTrack(o,e),t.set(e,n),this._senderMap.set(o,t),this._needsNegotiation())},n.prototype.replaceTrack=function(o,e,t){this._debug("replaceTrack()");var n=this._senderMap.get(o),r=n?n.get(t):null;r||this.destroy(d("Cannot replace track that was never added.","ERR_TRACK_NOT_ADDED")),e&&this._senderMap.set(e,n),null==r.replaceTrack?this.destroy(d("replaceTrack is not supported in this browser","ERR_UNSUPPORTED_REPLACETRACK")):r.replaceTrack(e)},n.prototype.removeTrack=function(o,e){this._debug("removeSender()");var t=this._senderMap.get(o),n=t?t.get(e):null;n||this.destroy(d("Cannot remove track that was never added.","ERR_TRACK_NOT_ADDED"));try{n.removed=!0,this._pc.removeTrack(n)}catch(e){"NS_ERROR_UNEXPECTED"===e.name?this._sendersAwaitingStable.push(n):this.destroy(e)}this._needsNegotiation()},n.prototype.removeStream=function(r){var e=this;e._debug("removeSenders()"),r.getTracks().forEach(function(t){e.removeTrack(t,r)})},n.prototype._needsNegotiation=function(){var t=this;t._debug("_needsNegotiation"),t._batchedNegotiation||(t._batchedNegotiation=!0,setTimeout(function(){t._batchedNegotiation=!1,t._debug("starting batched negotiation"),t.negotiate()},0))},n.prototype.negotiate=function(){var t=this;t.initiator?t._isNegotiating?(t._queuedNegotiation=!0,t._debug("already negotiating, queueing")):(t._debug("start negotiation"),setTimeout(()=>{t._createOffer()},0)):t._isNegotiating||(t._debug("requesting negotiation from initiator"),t.emit("signal",{renegotiate:!0})),t._isNegotiating=!0},n.prototype.destroy=function(t){this._destroy(t,function(){})},n.prototype._destroy=function(n,e){if(!this.destroyed){if(this._debug("destroy (error: %s)",n&&(n.message||n)),this.readable=this.writable=!1,this._readableState.ended||this.push(null),this._writableState.finished||this.end(),this.destroyed=!0,this._connected=!1,this._pcReady=!1,this._channelReady=!1,this._remoteTracks=null,this._remoteStreams=null,this._senderMap=null,clearInterval(this._closingInterval),this._closingInterval=null,clearInterval(this._interval),this._interval=null,this._chunk=null,this._cb=null,this._onFinishBound&&this.removeListener("finish",this._onFinishBound),this._onFinishBound=null,this._channel){try{this._channel.close()}catch(t){}this._channel.onmessage=null,this._channel.onopen=null,this._channel.onclose=null,this._channel.onerror=null}if(this._pc){try{this._pc.close()}catch(t){}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,n&&this.emit("error",n),this.emit("close"),e()}},n.prototype._setupData=function(r){var o=this;if(!r.channel)return o.destroy(d("Data channel event is missing `channel` property","ERR_DATA_CHANNEL"));o._channel=r.channel,o._channel.binaryType="arraybuffer","number"==typeof o._channel.bufferedAmountLowThreshold&&(o._channel.bufferedAmountLowThreshold=65536),o.channelName=o._channel.label,o._channel.onmessage=function(t){o._onChannelMessage(t)},o._channel.onbufferedamountlow=function(){o._onChannelBufferedAmountLow()},o._channel.onopen=function(){o._onChannelOpen()},o._channel.onclose=function(){o._onChannelClose()},o._channel.onerror=function(t){o.destroy(d(t,"ERR_DATA_CHANNEL"))};var e=!1;o._closingInterval=setInterval(function(){o._channel&&"closing"===o._channel.readyState?(e&&o._onChannelClose(),e=!0):e=!1},5e3)},n.prototype._read=function(){},n.prototype._write=function(r,e,t){if(this.destroyed)return t(d("cannot write after peer is destroyed","ERR_DATA_CHANNEL"));if(this._connected){try{this.send(r)}catch(e){return this.destroy(d(e,"ERR_DATA_CHANNEL"))}65536<this._channel.bufferedAmount?(this._debug("start backpressure: bufferedAmount %d",this._channel.bufferedAmount),this._cb=t):t(null)}else this._debug("write before connect"),this._chunk=r,this._cb=t},n.prototype._onFinish=function(){function n(){setTimeout(function(){t.destroy()},1e3)}var t=this;t.destroyed||(t._connected?n():t.once("connect",n))},n.prototype._startIceCompleteTimeout=function(){var t=this;t.destroyed||t._iceCompleteTimer||(t._debug("started iceComplete timeout"),t._iceCompleteTimer=setTimeout(function(){t._iceComplete||(t._iceComplete=!0,t._debug("iceComplete timeout completed"),t.emit("iceTimeout"),t.emit("_iceComplete"))},t.iceCompleteTimeout))},n.prototype._createOffer=function(){var o=this;o.destroyed||o._pc.createOffer(o.offerOptions).then(function(e){function t(){if(!o.destroyed){var t=o._pc.localDescription||e;o._debug("signal"),o.emit("signal",{type:t.type,sdp:t.sdp})}}o.destroyed||(o.trickle||o.allowHalfTrickle||(e.sdp=r(e.sdp)),e.sdp=o.sdpTransform(e.sdp),o._pc.setLocalDescription(e).then(function(){o._debug("createOffer success"),o.destroyed||(o.trickle||o._iceComplete?t():o.once("_iceComplete",t))}).catch(function(e){o.destroy(d(e,"ERR_SET_LOCAL_DESCRIPTION"))}))}).catch(function(e){o.destroy(d(e,"ERR_CREATE_OFFER"))})},n.prototype._requestMissingTransceivers=function(){var n=this;n._pc.getTransceivers&&n._pc.getTransceivers().forEach(e=>{e.mid||!e.sender.track||e.requested||(e.requested=!0,n.addTransceiver(e.sender.track.kind))})},n.prototype._createAnswer=function(){var o=this;o.destroyed||o._pc.createAnswer(o.answerOptions).then(function(e){function t(){if(!o.destroyed){var t=o._pc.localDescription||e;o._debug("signal"),o.emit("signal",{type:t.type,sdp:t.sdp}),o.initiator||o._requestMissingTransceivers()}}o.destroyed||(o.trickle||o.allowHalfTrickle||(e.sdp=r(e.sdp)),e.sdp=o.sdpTransform(e.sdp),o._pc.setLocalDescription(e).then(function(){o.destroyed||(o.trickle||o._iceComplete?t():o.once("_iceComplete",t))}).catch(function(e){o.destroy(d(e,"ERR_SET_LOCAL_DESCRIPTION"))}))}).catch(function(e){o.destroy(d(e,"ERR_CREATE_ANSWER"))})},n.prototype._onIceStateChange=function(){if(!this.destroyed){var n=this._pc.iceConnectionState,e=this._pc.iceGatheringState;this._debug("iceStateChange (connection: %s) (gathering: %s)",n,e),this.emit("iceStateChange",n,e),"connected"!==n&&"completed"!==n||(this._pcReady=!0,this._maybeReady()),"failed"===n&&this.destroy(d("Ice connection failed.","ERR_ICE_CONNECTION_FAILURE")),"closed"===n&&this.destroy(d("Ice connection closed.","ERR_ICE_CONNECTION_CLOSED"))}},n.prototype.getStats=function(o){function d(n){return"[object Array]"===Object.prototype.toString.call(n.values)&&n.values.forEach(function(e){Object.assign(n,e)}),n}var e=this;0===e._pc.getStats.length?e._pc.getStats().then(function(e){var t=[];e.forEach(function(n){t.push(d(n))}),o(null,t)},function(e){o(e)}):e._isReactNativeWebrtc?e._pc.getStats(null,function(e){var t=[];e.forEach(function(n){t.push(d(n))}),o(null,t)},function(e){o(e)}):0<e._pc.getStats.length?e._pc.getStats(function(t){if(!e.destroyed){var n=[];t.result().forEach(function(r){var e={};r.names().forEach(function(t){e[t]=r.stat(t)}),e.id=r.id,e.type=r.type,e.timestamp=r.timestamp,n.push(d(e))}),o(null,n)}},function(e){o(e)}):o(null,[])},n.prototype._maybeReady=function(){var s=this;s._debug("maybeReady pc %s channel %s",s._pcReady,s._channelReady),!s._connected&&!s._connecting&&s._pcReady&&s._channelReady&&(s._connecting=!0,function e(){s.destroyed||s.getStats(function(t,n){function l(e){a=!0;var t=i[e.localCandidateId];t&&(t.ip||t.address)?(s.localAddress=t.ip||t.address,s.localPort=+t.port):t&&t.ipAddress?(s.localAddress=t.ipAddress,s.localPort=+t.portNumber):"string"==typeof e.googLocalAddress&&(t=e.googLocalAddress.split(":"),s.localAddress=t[0],s.localPort=+t[1]),s.localAddress&&(s.localFamily=s.localAddress.includes(":")?"IPv6":"IPv4");var o=u[e.remoteCandidateId];o&&(o.ip||o.address)?(s.remoteAddress=o.ip||o.address,s.remotePort=+o.port):o&&o.ipAddress?(s.remoteAddress=o.ipAddress,s.remotePort=+o.portNumber):"string"==typeof e.googRemoteAddress&&(o=e.googRemoteAddress.split(":"),s.remoteAddress=o[0],s.remotePort=+o[1]),s.remoteAddress&&(s.remoteFamily=s.remoteAddress.includes(":")?"IPv6":"IPv4"),s._debug("connect local: %s:%s remote: %s:%s",s.localAddress,s.localPort,s.remoteAddress,s.remotePort)}if(!s.destroyed){t&&(n=[]);var u={},i={},o={},a=!1;if(n.forEach(function(t){"remotecandidate"!==t.type&&"remote-candidate"!==t.type||(u[t.id]=t),"localcandidate"!==t.type&&"local-candidate"!==t.type||(i[t.id]=t),"candidatepair"!==t.type&&"candidate-pair"!==t.type||(o[t.id]=t)}),n.forEach(function(t){"transport"===t.type&&t.selectedCandidatePairId&&l(o[t.selectedCandidatePairId]),("googCandidatePair"===t.type&&"true"===t.googActiveConnection||("candidatepair"===t.type||"candidate-pair"===t.type)&&t.selected)&&l(t)}),a||Object.keys(o).length&&!Object.keys(i).length){if(s._connecting=!1,s._connected=!0,s._chunk){try{s.send(s._chunk)}catch(e){return s.destroy(d(e,"ERR_DATA_CHANNEL"))}s._chunk=null,s._debug("sent chunk from \"write before connect\"");var f=s._cb;s._cb=null,f(null)}"number"!=typeof s._channel.bufferedAmountLowThreshold&&(s._interval=setInterval(function(){s._onInterval()},150),s._interval.unref&&s._interval.unref()),s._debug("connect"),s.emit("connect")}else setTimeout(e,100)}})}())},n.prototype._onInterval=function(){this._cb&&this._channel&&!(65536<this._channel.bufferedAmount)&&this._onChannelBufferedAmountLow()},n.prototype._onSignalingStateChange=function(){var n=this;n.destroyed||("stable"!==n._pc.signalingState||n._firstStable||(n._isNegotiating=!1,n._debug("flushing sender queue",n._sendersAwaitingStable),n._sendersAwaitingStable.forEach(function(e){n._pc.removeTrack(e),n._queuedNegotiation=!0}),n._sendersAwaitingStable=[],n._queuedNegotiation&&(n._debug("flushing negotiation queue"),n._queuedNegotiation=!1,n._needsNegotiation()),n._debug("negotiate"),n.emit("negotiate")),n._firstStable=!1,n._debug("signalingStateChange %s",n._pc.signalingState),n.emit("signalingStateChange",n._pc.signalingState))},n.prototype._onIceCandidate=function(t){this.destroyed||(t.candidate&&this.trickle?this.emit("signal",{candidate:{candidate:t.candidate.candidate,sdpMLineIndex:t.candidate.sdpMLineIndex,sdpMid:t.candidate.sdpMid}}):t.candidate||this._iceComplete||(this._iceComplete=!0,this.emit("_iceComplete")),t.candidate&&this._startIceCompleteTimeout())},n.prototype._onChannelMessage=function(e){if(!this.destroyed){var t=e.data;t instanceof ArrayBuffer&&(t=o.from(t)),this.push(t)}},n.prototype._onChannelBufferedAmountLow=function(){if(!this.destroyed&&this._cb){this._debug("ending backpressure: bufferedAmount %d",this._channel.bufferedAmount);var t=this._cb;this._cb=null,t(null)}},n.prototype._onChannelOpen=function(){this._connected||this.destroyed||(this._debug("on channel open"),this._channelReady=!0,this._maybeReady())},n.prototype._onChannelClose=function(){this.destroyed||(this._debug("on channel close"),this.destroy())},n.prototype._onTrack=function(r){var e=this;e.destroyed||r.streams.forEach(function(t){e._debug("on track"),e.emit("track",r.track,t),e._remoteTracks.push({track:r.track,stream:t}),e._remoteStreams.some(function(n){return n.id===t.id})||(e._remoteStreams.push(t),setTimeout(function(){e.emit("stream",t)},0))})},n.prototype._debug=function(){var t=[].slice.call(arguments);t[0]="["+this._id+"] "+t[0],a.apply(null,t)}}).call(this,p({}).Buffer);var nd,rd=1,od=function(){rd=65535&rd+1},gr=function(o){nd||(nd=setInterval(od,250)).unref&&nd.unref();var d=4*(o||5),t=[0],n=1,l=65535&rd-1;return function(r){var e=65535&rd-l;for(e>d&&(e=d),l=rd;e--;)n==d&&(n=0),t[n]=t[0==n?d-1:n-1],n++;r&&(t[n-1]+=r);var i=t[n-1],o=t.length<d?0:t[n==d?0:n];return 4>t.length?i:4*(i-o)/t.length}},mr={};const dd=/^\[?([^\]]+)\]?:(\d+)$/;let yr={},ad=0;(mr=function(n){if(1e5==ad&&mr.reset(),!yr[n]){const e=dd.exec(n);if(!e)throw new Error(`invalid addr: ${n}`);yr[n]=[e[1],+e[2]],ad+=1}return yr[n]}).reset=function(){yr={},ad=0};var id={exports:{}};id.exports=class{constructor(r=0,e){const t=null!=e&&e.grow;this.grow=t&&isFinite(t)&&Dn(t)||t||0,this.buffer="number"==typeof r?new Uint8Array(Dn(r)):r}get(n){const e=n>>3;return e<this.buffer.length&&!!(this.buffer[e]&128>>n%8)}set(r,e=!0){const t=r>>3;if(e){if(this.buffer.length<t+1){const n=to(t+1,ao(2*this.buffer.length,this.grow));if(n<=this.grow){const e=new Uint8Array(n);e.set(this.buffer),this.buffer=e}}this.buffer[t]|=128>>r%8}else t<this.buffer.length&&(this.buffer[t]&=~(128>>r%8))}},id=id.exports;var sd=class extends st.Writable{constructor(o,e,d={}){if(super(d),!o||!o.put||!o.get)throw new Error("First argument must be an abstract-chunk-store compliant store");if(!(e=+e))throw new Error("Second argument must be a chunk length");this._blockstream=new Io(e,{zeroPadding:!1}),this._outstandingPuts=0;let n=0;this._blockstream.on("data",e=>{this.destroyed||(this._outstandingPuts+=1,o.put(n,e,()=>{this._outstandingPuts-=1,0===this._outstandingPuts&&"function"==typeof this._finalCb&&(this._finalCb(null),this._finalCb=null)}),n+=1)}).on("error",t=>{this.destroy(t)})}_write(r,e,t){this._blockstream.write(r,e,t)}_final(t){this._blockstream.end(),this._blockstream.once("end",()=>{0===this._outstandingPuts?t(null):this._finalCb=t})}destroy(t){this.destroyed||(this.destroyed=!0,t&&this.emit("error",t),this.emit("close"))}},kr={};(function(n){kr.DEFAULT_ANNOUNCE_PEERS=50,kr.binaryToHex=function(e){return"string"!=typeof e&&(e=e+""),n.from(e,"binary").toString("hex")},kr.hexToBinary=function(e){return"string"!=typeof e&&(e=e+""),n.from(e,"hex").toString("binary")},Object.assign(kr,oe)}).call(this,p({}).Buffer);var Sr={};(function(o,d){const t=jo("simple-websocket"),e=WebSocket,r=65536;class n extends st.Duplex{constructor(n={}){if("string"==typeof n&&(n={url:n}),super(n=Object.assign({allowHalfOpen:!1},n)),null==n.url&&null==n.socket)throw new Error("Missing required `url` or `socket` option");if(null!=n.url&&null!=n.socket)throw new Error("Must specify either `url` or `socket` option, not both");if(this._id=ur(4).toString("hex").slice(0,7),this._debug("new websocket: %o",n),this.connected=!1,this.destroyed=!1,this._chunk=null,this._cb=null,this._interval=null,n.socket)this.url=n.socket.url,this._ws=n.socket;else{this.url=n.url;try{this._ws=new e(n.url)}catch(e){return void o.nextTick(()=>this.destroy(e))}}this._ws.binaryType="arraybuffer",this._ws.onopen=()=>{this._onOpen()},this._ws.onmessage=t=>{this._onMessage(t)},this._ws.onclose=()=>{this._onClose()},this._ws.onerror=()=>{this.destroy(new Error("connection error to "+this.url))},this._onFinishBound=()=>{this._onFinish()},this.once("finish",this._onFinishBound)}send(t){this._ws.send(t)}destroy(t){this._destroy(t,()=>{})}_destroy(n,r){if(!this.destroyed){if(this._debug("destroy (error: %s)",n&&(n.message||n)),this.readable=this.writable=!1,this._readableState.ended||this.push(null),this._writableState.finished||this.end(),this.connected=!1,this.destroyed=!0,clearInterval(this._interval),this._interval=null,this._chunk=null,this._cb=null,this._onFinishBound&&this.removeListener("finish",this._onFinishBound),this._onFinishBound=null,this._ws){const r=this._ws,t=()=>{r.onclose=null};if(r.readyState===e.CLOSED)t();else try{r.onclose=t,r.close()}catch(n){t()}r.onopen=null,r.onmessage=null,r.onerror=()=>{}}if(this._ws=null,n){if("undefined"!=typeof DOMException&&n instanceof DOMException){const e=n.code;(n=new Error(n.message)).code=e}this.emit("error",n)}this.emit("close"),r()}}_read(){}_write(o,e,t){if(this.destroyed)return t(new Error("cannot write after socket is destroyed"));if(this.connected){try{this.send(o)}catch(e){return this.destroy(e)}this._ws.bufferedAmount>r?(this._debug("start backpressure: bufferedAmount %d",this._ws.bufferedAmount),this._cb=t):t(null)}else this._debug("write before connect"),this._chunk=o,this._cb=t}_onFinish(){if(!this.destroyed){const t=()=>{setTimeout(()=>this.destroy(),1e3)};this.connected?t():this.once("connect",t)}}_onMessage(t){if(this.destroyed)return;let e=t.data;e instanceof ArrayBuffer&&(e=d.from(e)),this.push(e)}_onOpen(){if(!this.connected&&!this.destroyed){if(this.connected=!0,this._chunk){try{this.send(this._chunk)}catch(e){return this.destroy(e)}this._chunk=null,this._debug("sent chunk from \"write before connect\"");const t=this._cb;this._cb=null,t(null)}this._interval=setInterval(()=>this._onInterval(),150),this._interval.unref&&this._interval.unref(),this._debug("connect"),this.emit("connect")}}_onInterval(){if(this._cb&&this._ws&&!(this._ws.bufferedAmount>r)){this._debug("ending backpressure: bufferedAmount %d",this._ws.bufferedAmount);const t=this._cb;this._cb=null,t(null)}}_onClose(){this.destroyed||(this._debug("on close"),this.destroy())}_debug(){const n=[].slice.call(arguments);n[0]="["+this._id+"] "+n[0],t.apply(null,n)}}n.WEBSOCKET_SUPPORT=!!e,Sr=n}).call(this,pe,p({}).Buffer);var ld=class extends m{constructor(n,e){super(),this.client=n,this.announceUrl=e,this.interval=null,this.destroyed=!1}setInterval(t){null==t&&(t=this.DEFAULT_ANNOUNCE_INTERVAL),clearInterval(this.interval),t&&(this.interval=setInterval(()=>{this.announce(this.client._defaultAnnounceOpts())},t),this.interval.unref&&this.interval.unref())}},xr={};const cd=jo("bittorrent-tracker:websocket-tracker"),Ar={};class Ir extends ld{constructor(r,e,t){super(r,e),cd("new websocket tracker %s",e),this.peers={},this.socket=null,this.reconnecting=!1,this.retries=0,this.reconnectTimer=null,this.expectingResponse=!1,this._openSocket()}announce(r){if(this.destroyed||this.reconnecting)return;if(!this.socket.connected)return void this.socket.once("connect",()=>{this.announce(r)});const o=Object.assign({},r,{action:"announce",info_hash:this.client._infoHashBinary,peer_id:this.client._peerIdBinary});if(this._trackerId&&(o.trackerid=this._trackerId),"stopped"===r.event||"completed"===r.event)this._send(o);else{const t=ao(r.numwant,10);this._generateOffers(t,n=>{o.numwant=t,o.offers=n,this._send(o)})}}scrape(n){if(!(this.destroyed||this.reconnecting)){if(!this.socket.connected)return void this.socket.once("connect",()=>{this.scrape(n)});const e={action:"scrape",info_hash:Array.isArray(n.infoHash)&&0<n.infoHash.length?n.infoHash.map(t=>t.toString("binary")):n.infoHash&&n.infoHash.toString("binary")||this.client._infoHashBinary};this._send(e)}}destroy(o=Zn){function e(){d&&(clearTimeout(d),d=null),r.removeListener("data",e),r.destroy(),r=null}if(this.destroyed)return o(null);for(const t in this.destroyed=!0,clearInterval(this.interval),clearTimeout(this.reconnectTimer),this.peers){const 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,Ar[this.announceUrl]&&(Ar[this.announceUrl].consumers-=1),0<Ar[this.announceUrl].consumers)return o();let r=Ar[this.announceUrl];if(delete Ar[this.announceUrl],r.on("error",Zn),r.once("close",o),!this.expectingResponse)return e();var d=setTimeout(e,kr.DESTROY_TIMEOUT);r.once("data",e)}_openSocket(){this.destroyed=!1,this.peers||(this.peers={}),this._onSocketConnectBound=()=>{this._onSocketConnect()},this._onSocketErrorBound=t=>{this._onSocketError(t)},this._onSocketDataBound=t=>{this._onSocketData(t)},this._onSocketCloseBound=()=>{this._onSocketClose()},this.socket=Ar[this.announceUrl],this.socket?Ar[this.announceUrl].consumers+=1:(this.socket=Ar[this.announceUrl]=new Sr(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(t){if(!this.destroyed){this.expectingResponse=!1;try{t=JSON.parse(t)}catch(e){return void this.client.emit("warning",new Error("Invalid tracker response"))}"announce"===t.action?this._onAnnounceResponse(t):"scrape"===t.action?this._onScrapeResponse(t):this._onSocketError(new Error(`invalid action in WS response: ${t.action}`))}}_onAnnounceResponse(o){if(o.info_hash!==this.client._infoHashBinary)return void cd("ignoring websocket data from %s for %s (looking for %s: reused socket)",this.announceUrl,kr.binaryToHex(o.info_hash),this.client.infoHash);if(o.peer_id&&o.peer_id===this.client._peerIdBinary)return;cd("received %s from %s for %s",JSON.stringify(o),this.announceUrl,this.client.infoHash);const e=o["failure reason"];if(e)return this.client.emit("warning",new Error(e));const t=o["warning message"];t&&this.client.emit("warning",new Error(t));const n=o.interval||o["min interval"];n&&this.setInterval(1e3*n);const r=o["tracker id"];if(r&&(this._trackerId=r),null!=o.complete){const e=Object.assign({},o,{announce:this.announceUrl,infoHash:kr.binaryToHex(o.info_hash)});this.client.emit("update",e)}let d;if(o.offer&&o.peer_id&&(cd("creating peer (from remote offer)"),(d=this._createPeer()).id=kr.binaryToHex(o.peer_id),d.once("signal",e=>{const t={action:"announce",info_hash:this.client._infoHashBinary,peer_id:this.client._peerIdBinary,to_peer_id:o.peer_id,answer:e,offer_id:o.offer_id};this._trackerId&&(t.trackerid=this._trackerId),this._send(t)}),d.signal(o.offer),this.client.emit("peer",d)),o.answer&&o.peer_id){const e=kr.binaryToHex(o.offer_id);(d=this.peers[e])?(d.id=kr.binaryToHex(o.peer_id),d.signal(o.answer),this.client.emit("peer",d),clearTimeout(d.trackerTimeout),d.trackerTimeout=null,delete this.peers[e]):cd(`got unexpected answer: ${JSON.stringify(o.answer)}`)}}_onScrapeResponse(r){r=r.files||{};const n=Object.keys(r);0===n.length?this.client.emit("warning",new Error("invalid scrape response")):n.forEach(e=>{const t=Object.assign(r[e],{announce:this.announceUrl,infoHash:kr.binaryToHex(e)});this.client.emit("scrape",t)})}_onSocketClose(){this.destroyed||(this.destroy(),this._startReconnectTimer())}_onSocketError(t){this.destroyed||(this.destroy(),this.client.emit("warning",t),this._startReconnectTimer())}_startReconnectTimer(){const t=io(Math.random()*12e4)+ao(no(2,this.retries)*1e4,18e5);this.reconnecting=!0,clearTimeout(this.reconnectTimer),this.reconnectTimer=setTimeout(()=>{this.retries++,this._openSocket()},t),this.reconnectTimer.unref&&this.reconnectTimer.unref(),cd("reconnecting socket in %s ms",t)}_send(n){if(!this.destroyed){this.expectingResponse=!0;const e=JSON.stringify(n);cd("send %s",e),this.socket.send(e)}}_generateOffers(d,e){function t(){const r=ur(20).toString("hex");cd("creating peer (from _generateOffers)");const e=a.peers[r]=a._createPeer({initiator:!0});e.once("signal",e=>{n.push({offer:e,offer_id:kr.hexToBinary(r)}),o()}),e.trackerTimeout=setTimeout(()=>{cd("tracker timeout: destroying peer"),e.trackerTimeout=null,delete a.peers[r],e.destroy()},5e4),e.trackerTimeout.unref&&e.trackerTimeout.unref()}function o(){n.length===d&&(cd("generated %s offers",d),e(n))}const a=this,n=[];cd("generating %s offers",d);for(let n=0;n<d;++n)t();o()}_createPeer(o){function d(n){r.client.emit("warning",new Error(`Connection error: ${n.message}`)),t.destroy()}const r=this;o=Object.assign({trickle:!1,config:r.client._rtcConfig,wrtc:r.client._wrtc},o);const t=new td(o);return t.once("error",d),t.once("connect",function n(){t.removeListener("error",d),t.removeListener("connect",n)}),t}}Ir.prototype.DEFAULT_ANNOUNCE_INTERVAL=3e4,Ir._socketPool=Ar,xr=Ir;var Or={};(function(d,l){const a=jo("bittorrent-tracker:client");class t extends m{constructor(e={}){if(super(),!e.peerId)throw new Error("Option `peerId` is required");if(!e.infoHash)throw new Error("Option `infoHash` is required");if(!e.announce)throw new Error("Option `announce` is required");if(!d.browser&&!e.port)throw new Error("Option `port` is required");this.peerId="string"==typeof e.peerId?e.peerId:e.peerId.toString("hex"),this._peerIdBuffer=l.from(this.peerId,"hex"),this._peerIdBinary=this._peerIdBuffer.toString("binary"),this.infoHash="string"==typeof e.infoHash?e.infoHash.toLowerCase():e.infoHash.toString("hex"),this._infoHashBuffer=l.from(this.infoHash,"hex"),this._infoHashBinary=this._infoHashBuffer.toString("binary"),a("new client %s",this.infoHash),this.destroyed=!1,this._port=e.port,this._getAnnounceOpts=e.getAnnounceOpts,this._rtcConfig=e.rtcConfig,this._userAgent=e.userAgent,this._wrtc="function"==typeof e.wrtc?e.wrtc():e.wrtc;let t="string"==typeof e.announce?[e.announce]:null==e.announce?[]:e.announce;t=t.map(t=>("/"===(t=t.toString())[t.length-1]&&(t=t.substring(0,t.length-1)),t)),t=or(t);const c=!1!==this._wrtc&&(!!this._wrtc||td.WEBRTC_SUPPORT),s=e=>{d.nextTick(()=>{this.emit("warning",e)})};this._trackers=t.map(o=>{let e;try{e=new URL(o)}catch(e){return s(new Error(`Invalid tracker URL: ${o}`)),null}const d=e.port;if(0>d||65535<d)return s(new Error(`Invalid tracker port: ${o}`)),null;const n=e.protocol;return"http:"!==n&&"https:"!==n||!0?"udp:"===n&&!1?new oe(this,o):("ws:"===n||"wss:"===n)&&c?"ws:"===n&&"undefined"!=typeof window&&"https:"===window.location.protocol?(s(new Error(`Unsupported tracker protocol: ${o}`)),null):new xr(this,o):(s(new Error(`Unsupported tracker protocol: ${o}`)),null):new oe(this,o)}).filter(Boolean)}start(t){a("send `start`"),(t=this._defaultAnnounceOpts(t)).event="started",this._announce(t),this._trackers.forEach(t=>{t.setInterval()})}stop(t){a("send `stop`"),(t=this._defaultAnnounceOpts(t)).event="stopped",this._announce(t)}complete(t){a("send `complete`"),t||(t={}),(t=this._defaultAnnounceOpts(t)).event="completed",this._announce(t)}update(t){a("send `update`"),(t=this._defaultAnnounceOpts(t)).event&&delete t.event,this._announce(t)}_announce(n){this._trackers.forEach(e=>{e.announce(n)})}scrape(n){a("send `scrape`"),n||(n={}),this._trackers.forEach(e=>{e.scrape(n)})}setInterval(n){a("setInterval %d",n),this._trackers.forEach(e=>{e.setInterval(n)})}destroy(n){if(!this.destroyed){this.destroyed=!0,a("destroy");const e=this._trackers.map(n=>e=>{n.destroy(e)});Oo(e,n),this._trackers=[],this._getAnnounceOpts=null}}_defaultAnnounceOpts(t={}){return null==t.numwant&&(t.numwant=kr.DEFAULT_ANNOUNCE_PEERS),null==t.uploaded&&(t.uploaded=0),null==t.downloaded&&(t.downloaded=0),this._getAnnounceOpts&&(t=Object.assign({},t,this._getAnnounceOpts())),t}}t.scrape=(r,d)=>{if(d=Ot(d),!r.infoHash)throw new Error("Option `infoHash` is required");if(!r.announce)throw new Error("Option `announce` is required");const e=Object.assign({},r,{infoHash:Array.isArray(r.infoHash)?r.infoHash[0]:r.infoHash,peerId:l.from("01234567890123456789"),port:6881}),i=new t(e);i.once("error",d),i.once("warning",d);let s=Array.isArray(r.infoHash)?r.infoHash.length:1;const c={};return i.on("scrape",t=>{if(s-=1,c[t.infoHash]=t,0===s){i.destroy();const t=Object.keys(c);1===t.length?d(null,c[t[0]]):d(null,c)}}),r.infoHash=Array.isArray(r.infoHash)?r.infoHash.map(t=>l.from(t,"hex")):l.from(r.infoHash,"hex"),i.scrape({infoHash:r.infoHash}),i},Or=t}).call(this,pe,p({}).Buffer);var ud={};(function(r){const o=jo("torrent-discovery"),e=m.EventEmitter;ud=class extends e{constructor(e){if(super(),!e.peerId)throw new Error("Option `peerId` is required");if(!e.infoHash)throw new Error("Option `infoHash` is required");if(!r.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=t=>{this.emit("warning",t)},this._onError=t=>{this.emit("error",t)},this._onDHTPeer=(n,e)=>{e.toString("hex")===this.infoHash&&this.emit("peer",`${n.host}:${n.port}`,"dht")},this._onTrackerPeer=t=>{this.emit("peer",t,"tracker")},this._onTrackerAnnounce=()=>{this.emit("trackerAnnounce")};const t=(r,e)=>{const t=new oe(e);return t.on("warning",this._onWarning),t.on("error",this._onError),t.listen(r),this._internalDHT=!0,t};!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(),this.dht=!1!==e.dht&&0?e.dht&&"function"==typeof e.dht.addNode?e.dht:e.dht&&"object"==typeof e.dht?t(e.dhtPort,e.dht):t(e.dhtPort):null,this.dht&&(this.dht.on("peer",this._onDHTPeer),this._dhtAnnounce())}updatePort(t){t!==this._port&&(this._port=t,this.dht&&this._dhtAnnounce(),this.tracker&&(this.tracker.stop(),this.tracker.destroy(()=>{this.tracker=this._createTracker()})))}complete(t){this.tracker&&this.tracker.complete(t)}destroy(n){if(!this.destroyed){this.destroyed=!0,clearTimeout(this._dhtTimeout);const e=[];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),e.push(t=>{this.tracker.destroy(t)})),this.dht&&this.dht.removeListener("peer",this._onDHTPeer),this._internalDHT&&(this.dht.removeListener("warning",this._onWarning),this.dht.removeListener("error",this._onError),e.push(t=>{this.dht.destroy(t)})),Oo(e,n),this.dht=null,this.tracker=null,this._announce=null}}_createTracker(){const n=Object.assign({},this._trackerOpts,{infoHash:this.infoHash,announce:this._announce,peerId:this.peerId,port:this._port,userAgent:this._userAgent}),e=new Or(n);return e.on("warning",this._onWarning),e.on("error",this._onError),e.on("peer",this._onTrackerPeer),e.on("update",this._onTrackerAnnounce),e.setInterval(this._intervalMs),e.start(),e}_dhtAnnounce(){this._dhtAnnouncing||(o("dht announce"),this._dhtAnnouncing=!0,clearTimeout(this._dhtTimeout),this.dht.announce(this.infoHash,this._port,t=>{this._dhtAnnouncing=!1,o("dht announce complete"),t&&this.emit("warning",t),this.emit("dhtAnnounce"),this.destroyed||(this._dhtTimeout=setTimeout(()=>{this._dhtAnnounce()},this._intervalMs+io(Math.random()*this._intervalMs/5)),this._dhtTimeout.unref&&this._dhtTimeout.unref())}))}}}).call(this,pe);var fd={};(function(o){function r(t,e){if(!(this instanceof r))return new r(t,e);if(e||(e={}),this.chunkLength=+t,!this.chunkLength)throw new Error("First argument must be a chunk length");this.chunks=[],this.closed=!1,this.length=+e.length||1/0,this.length!==1/0&&(this.lastChunkLength=this.length%this.chunkLength||this.chunkLength,this.lastChunkIndex=eo(this.length/this.chunkLength)-1)}function d(e,t,n){o.nextTick(function(){e&&e(t,n)})}fd=r,r.prototype.put=function(n,e,t){if(this.closed)return d(t,new Error("Storage is closed"));var r=n===this.lastChunkIndex;return 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this._writeBuffer=r,void(this._writeCb=l);n?l():this._ondrain(l)}}_buffer(e,t){this._missing=e,this._buf=o.alloc(e),this._cb=t}_stream(o,e){return this._missing=o,this._str=new a(this),this._ondrain=(t=this._str,d="drain",i=null,t.on(d,function(n){if(i){var e=i;i=null,e(n)}}),function(t){i=t}),this._pending++,this._str.on("end",()=>{this._pending--,this._kick()}),this._cb=e,this._str;var t,d,i}_readBox(){const e=(t,n)=>{this._buffer(t,t=>{n=n?o.concat([n,t]):t;var r=d.readHeaders(n);"number"==typeof r?e(r-n.length,n):(this._pending++,this._headers=r,this.emit("box",r))})};e(8)}stream(){if(!this._headers)throw new Error("this function can only be called once after 'box' is emitted");var t=this._headers;return this._headers=null,this._stream(t.contentLen,null)}decode(n){if(!this._headers)throw new Error("this function can only be called once after 'box' is emitted");var e=this._headers;this._headers=null,this._buffer(e.contentLen,t=>{var r=d.decodeWithoutHeaders(e,t);n(r),this._pending--,this._kick()})}ignore(){if(!this._headers)throw new Error("this function can only be called once after 'box' is emitted");var t=this._headers;this._headers=null,this._missing=t.contentLen,0===this._missing&&(this._ignoreEmpty=!0),this._cb=()=>{this._pending--,this._kick()}}_kick(){if(!this._pending&&(this._buf||this._str||this._readBox(),this._writeBuffer)){var n=this._writeCb,e=this._writeBuffer;this._writeBuffer=null,this._writeCb=null,this._write(e,null,n)}}}}).call(this,p({}).Buffer);var Bd={};(function(d,e){function n(){}var a=lo({});class r extends st.PassThrough{constructor(t){super(),this._parent=t,this.destroyed=!1}destroy(t){this.destroyed||(this.destroyed=!0,this._parent.destroy(t),t&&this.emit("error",t),this.emit("close"))}}Bd=class extends st.Readable{constructor(t){super(t),this.destroyed=!1,this._finalized=!1,this._reading=!1,this._stream=null,this._drain=null,this._want=!1,this._onreadable=()=>{this._want&&(this._want=!1,this._read())},this._onend=()=>{this._stream=null}}mdat(n,e){this.mediaData(n,e)}mediaData(o,e){var t=new r(this);return this.box({type:"mdat",contentLength:o,encodeBufferLen:8,stream:t},e),t}box(r,t){if(t||(t=n),this.destroyed)return t(new Error("Encoder is destroyed"));var i;if(r.encodeBufferLen&&(i=e.alloc(r.encodeBufferLen)),r.stream)r.buffer=null,i=a.encode(r,i),this.push(i),this._stream=r.stream,this._stream.on("readable",this._onreadable),this._stream.on("end",this._onend),this._stream.on("end",t),this._forward();else{if(i=a.encode(r,i),this.push(i))return d.nextTick(t);this._drain=t}}destroy(n){if(!this.destroyed){if(this.destroyed=!0,this._stream&&this._stream.destroy&&this._stream.destroy(),this._stream=null,this._drain){var e=this._drain;this._drain=null,e(n)}n&&this.emit("error",n),this.emit("close")}}finalize(){this._finalized=!0,this._stream||this._drain||this.push(null)}_forward(){if(this._stream)for(;!this.destroyed;){var t=this._stream.read();if(!t)return void(this._want=!!this._stream);if(!this.push(t))return}}_read(){if(!this._reading&&!this.destroyed){if(this._reading=!0,this._stream&&this._forward(),this._drain){var t=this._drain;this._drain=null,t()}this._reading=!1,this._finalized&&this.push(null)}}}}).call(this,pe,p({}).Buffer);var Id={decode:t=>new Td(t),encode:t=>new Bd(t)};const{Writable:Rd,PassThrough:Ad}=st;var Ud=class extends Rd{constructor(n,e={}){super(e),this.destroyed=!1,this._queue=[],this._position=n||0,this._cb=null,this._buffer=null,this._out=null}_write(d,o,a){let n=!0;for(;;){if(this.destroyed)return;if(0===this._queue.length)return this._buffer=d,void(this._cb=a);this._buffer=null;var l=this._queue[0];const e=to(l.start-this._position,0),t=l.end-this._position;if(e>=d.length)return this._position+=d.length,a(null);let r;if(t>d.length){this._position+=d.length,r=0===e?d:d.slice(e),n=l.stream.write(r)&&n;break}this._position+=t,r=0===e&&t===d.length?d:d.slice(e,t),n=l.stream.write(r)&&n,l.last&&l.stream.end(),d=d.slice(t),this._queue.shift()}n?a(null):l.stream.once("drain",a.bind(null,null))}slice(o){if(this.destroyed)return null;Array.isArray(o)||(o=[o]);const d=new Ad;return o.forEach((e,t)=>{this._queue.push({start:e.start,end:e.end,stream:d,last:t===o.length-1})}),this._buffer&&this._write(this._buffer,null,this._cb),d}destroy(t){this.destroyed||(this.destroyed=!0,t&&this.emit("error",t))}},Pd={};(function(d){const l=lo({});class w{constructor(n,e){this._entries=n,this._countName=e||"count",this._index=0,this._offset=0,this.value=this._entries[0]}inc(){this._offset++,this._offset>=this._entries[this._index][this._countName]&&(this._index++,this._offset=0),this.value=this._entries[this._index]}}Pd=class extends m{constructor(t){super(),this._tracks=[],this._file=t,this._decoder=null,this._findMoov(0)}_findMoov(o){this._decoder&&this._decoder.destroy();let e=0;this._decoder=Id.decode();const d=this._file.createReadStream({start:o});d.pipe(this._decoder);const n=t=>{"moov"===t.type?(this._decoder.removeListener("box",n),this._decoder.decode(t=>{d.destroy();try{this._processMoov(t)}catch(e){e.message=`Cannot parse mp4 file: ${e.message}`,this.emit("error",e)}})):4096>t.length?(e+=t.length,this._decoder.ignore()):(this._decoder.removeListener("box",n),e+=t.length,d.destroy(),this._decoder.destroy(),this._findMoov(o+e))};this._decoder.on("box",n)}_processMoov(r){const t=r.traks;this._tracks=[],this._hasVideo=!1,this._hasAudio=!1;for(let i=0;i<t.length;i++){const e=t[i],s=e.mdia.minf.stbl,n=s.stsd.entries[0],o=e.mdia.hdlr.handlerType;let a,c;if("vide"===o&&"avc1"===n.type){if(this._hasVideo)continue;this._hasVideo=!0,a="avc1",n.avcC&&(a+=`.${n.avcC.mimeCodec}`),c=`video/mp4; codecs="${a}"`}else{if("soun"!==o||"mp4a"!==n.type)continue;if(this._hasAudio)continue;this._hasAudio=!0,a="mp4a",n.esds&&n.esds.mimeCodec&&(a+=`.${n.esds.mimeCodec}`),c=`audio/mp4; codecs="${a}"`}const u=[];let d=0,l=0,f=0,p=0,h=0,g=0;const m=new w(s.stts.entries);let _=null;s.ctts&&(_=new w(s.ctts.entries));for(let o=0;;){var S=s.stsc.entries[h];const a=s.stsz.entries[d],e=m.value.duration,t=_?_.value.compositionOffset:0;let n=!0;s.stss&&(n=s.stss.entries[o]===d+1);const r=s.stco||s.co64;if(u.push({size:a,duration:e,dts:g,presentationOffset:t,sync:n,offset:p+r.entries[f]}),++d>=s.stsz.entries.length)break;if(p+=a,++l>=S.samplesPerChunk){l=0,p=0,f++;const t=s.stsc.entries[h+1];t&&f+1>=t.firstChunk&&h++}g+=e,m.inc(),_&&_.inc(),n&&o++}e.mdia.mdhd.duration=0,e.tkhd.duration=0;const b=S.sampleDescriptionId,y={type:"moov",mvhd:r.mvhd,traks:[{tkhd:e.tkhd,mdia:{mdhd:e.mdia.mdhd,hdlr:e.mdia.hdlr,elng:e.mdia.elng,minf:{vmhd:e.mdia.minf.vmhd,smhd:e.mdia.minf.smhd,dinf:e.mdia.minf.dinf,stbl:{stsd:s.stsd,stts:{version:0,flags:0,entries:[]},ctts:{version:0,flags:0,entries:[]},stsc:{version:0,flags:0,entries:[]},stsz:{version:0,flags:0,entries:[]},stco:{version:0,flags:0,entries:[]},stss:{version:0,flags:0,entries:[]}}}}}],mvex:{mehd:{fragmentDuration:r.mvhd.duration},trexs:[{trackId:e.tkhd.trackId,defaultSampleDescriptionIndex:b,defaultSampleDuration:0,defaultSampleSize:0,defaultSampleFlags:0}]}};this._tracks.push({fragmentSequence:1,trackId:e.tkhd.trackId,timeScale:e.mdia.mdhd.timeScale,samples:u,currSample:null,currTime:null,moov:y,mime:c})}if(0===this._tracks.length)return void this.emit("error",new Error("no playable tracks"));r.mvhd.duration=0,this._ftyp={type:"ftyp",brand:"iso5",brandVersion:0,compatibleBrands:["iso5"]};const e=l.encode(this._ftyp),n=this._tracks.map(n=>{const t=l.encode(n.moov);return{mime:n.mime,init:d.concat([e,t])}});this.emit("ready",n)}seek(d){if(!this._tracks)throw new Error("Not ready yet; wait for 'ready' event");this._fileStream&&(this._fileStream.destroy(),this._fileStream=null);let a=-1;if(this._tracks.map((l,e)=>{l.outStream&&l.outStream.destroy(),l.inStream&&(l.inStream.destroy(),l.inStream=null);const n=l.outStream=Id.encode(),t=this._generateFragment(e,d);if(!t)return n.finalize();(-1===a||t.ranges[0].start<a)&&(a=t.ranges[0].start);const r=o=>{n.destroyed||n.box(o.moof,d=>d?this.emit("error",d):void(n.destroyed||l.inStream.slice(o.ranges).pipe(n.mediaData(o.length,t=>{if(t)return this.emit("error",t);if(!n.destroyed){const o=this._generateFragment(e);return o?void r(o):n.finalize()}}))))};r(t)}),0<=a){const t=this._fileStream=this._file.createReadStream({start:a});this._tracks.forEach(e=>{e.inStream=new Ud(a,{highWaterMark:1e7}),t.pipe(e.inStream)})}return this._tracks.map(t=>t.outStream)}_findSampleBefore(o,e){const t=this._tracks[o],n=io(t.timeScale*e);let r=function(d,e,t,n,a){var l,c;if(void 0===n)n=0;else if(0>(n|=0)||n>=d.length)throw new RangeError("invalid lower bound");if(void 0===a)a=d.length-1;else if((a|=0)<n||a>=d.length)throw new RangeError("invalid upper bound");for(;n<=a;)if(0>(c=+t(d[l=n+(a-n>>>1)],e,l,d)))n=l+1;else{if(!(0<c))return l;a=l-1}return~n}(t.samples,n,(n,e)=>n.dts+n.presentationOffset-e);for(-1===r?r=0:0>r&&(r=-r-2);!t.samples[r].sync;)r--;return r}_generateFragment(d,e){const l=this._tracks[d];let t;if((t=void 0===e?l.currSample:this._findSampleBefore(d,e))>=l.samples.length)return null;const n=l.samples[t].dts;let i=0;const c=[];for(var o=t;o<l.samples.length;o++){const r=l.samples[o];if(r.sync&&r.dts-n>=1*l.timeScale)break;i+=r.size;const e=c.length-1;0>e||c[e].end!==r.offset?c.push({start:r.offset,end:r.offset+r.size}):c[e].end+=r.size}return l.currSample=o,{moof:this._generateMoof(d,t,o),ranges:c,length:i}}_generateMoof(n,e,t){const r=this._tracks[n],d=[];let i=0;for(let o=e;o<t;o++){const t=r.samples[o];0>t.presentationOffset&&(i=1),d.push({sampleDuration:t.duration,sampleSize:t.size,sampleFlags:t.sync?33554432:16842752,sampleCompositionTimeOffset:t.presentationOffset})}const s={type:"moof",mfhd:{sequenceNumber:r.fragmentSequence++},trafs:[{tfhd:{flags:131072,trackId:r.trackId},tfdt:{baseMediaDecodeTime:r.samples[e].dts},trun:{flags:3841,dataOffset:8,entries:d,version:i}}]};return s.trafs[0].trun.dataOffset+=l.encodingLength(s),s}}}).call(this,p({}).Buffer);var Md={};Ur.prototype={_createMuxer(){this._muxer=new Pd(this._file),this._muxer.on("ready",t=>{this._tracks=t.map(r=>{const e=this._elemWrapper.createWriteStream(r.mime);e.on("error",t=>{this._elemWrapper.error(t)});const t={muxed:null,mediaSource:e,initFlushed:!1,onInitFlushed:null};return e.write(r.init,n=>{t.initFlushed=!0,t.onInitFlushed&&t.onInitFlushed(n)}),t}),(this._waitingFired||"auto"===this._elem.preload)&&this._pump()}),this._muxer.on("error",t=>{this._elemWrapper.error(t)})},_pump(){const r=this._muxer.seek(this._elem.currentTime,!this._tracks);this._tracks.forEach((e,t)=>{const n=()=>{e.muxed&&(e.muxed.destroy(),e.mediaSource=this._elemWrapper.createWriteStream(e.mediaSource),e.mediaSource.on("error",t=>{this._elemWrapper.error(t)})),e.muxed=r[t],Yr(e.muxed,e.mediaSource)};e.initFlushed?n():e.onInitFlushed=t=>{t?this._elemWrapper.error(t):n()}})},destroy(){this.destroyed||(this.destroyed=!0,this._elem.removeEventListener("waiting",this._onWaiting),this._elem.removeEventListener("error",this._onError),this._tracks&&this._tracks.forEach(t=>{t.muxed&&t.muxed.destroy()}),this._elem.src="")}},Md=Ur;var Od={render:function(o,e,d,a){"function"==typeof d&&(a=d,d={}),d||(d={}),a||(a=function(){}),Fr(o),Wr(d),"string"==typeof e&&(e=document.querySelector(e)),Mr(o,function(t){if(e.nodeName!==t.toUpperCase()){var n=pt.extname(o.name).toLowerCase();throw new Error("Cannot render \""+n+"\" inside a \""+e.nodeName.toLowerCase()+"\" element, expected \""+t+"\"")}return e},d,a)},append:function(o,d,a,s){function l(t){var e=document.createElement(t);return d.appendChild(e),e}if("function"==typeof a&&(s=a,a={}),a||(a={}),s||(s=function(){}),Fr(o),Wr(a),"string"==typeof d&&(d=document.querySelector(d)),d&&("VIDEO"===d.nodeName||"AUDIO"===d.nodeName))throw new Error("Invalid video/audio node argument. Argument must be root element that video/audio tag will be appended to.");Mr(o,function(t){return"video"===t||"audio"===t?function(t){var e=l(t);return a.autoplay&&(e.autoplay=!0),a.muted&&(e.muted=!0),a.controls&&(e.controls=!0),d.appendChild(e),e}(t):l(t)},a,function(n,e){n&&e&&e.remove(),s(n,e)})},mime:{".3gp":"video/3gpp",".aac":"audio/aac",".aif":"audio/x-aiff",".aiff":"audio/x-aiff",".atom":"application/atom+xml",".avi":"video/x-msvideo",".bmp":"image/bmp",".bz2":"application/x-bzip2",".conf":"text/plain",".css":"text/css",".csv":"text/plain",".diff":"text/x-diff",".doc":"application/msword",".flv":"video/x-flv",".gif":"image/gif",".gz":"application/x-gzip",".htm":"text/html",".html":"text/html",".ico":"image/vnd.microsoft.icon",".ics":"text/calendar",".iso":"application/octet-stream",".jar":"application/java-archive",".jpeg":"image/jpeg",".jpg":"image/jpeg",".js":"application/javascript",".json":"application/json",".less":"text/css",".log":"text/plain",".m3u":"audio/x-mpegurl",".m4a":"audio/x-m4a",".m4b":"audio/mp4",".m4p":"audio/mp4",".m4v":"video/x-m4v",".manifest":"text/cache-manifest",".markdown":"text/x-markdown",".mathml":"application/mathml+xml",".md":"text/x-markdown",".mid":"audio/midi",".midi":"audio/midi",".mov":"video/quicktime",".mp3":"audio/mpeg",".mp4":"video/mp4",".mp4v":"video/mp4",".mpeg":"video/mpeg",".mpg":"video/mpeg",".odp":"application/vnd.oasis.opendocument.presentation",".ods":"application/vnd.oasis.opendocument.spreadsheet",".odt":"application/vnd.oasis.opendocument.text",".oga":"audio/ogg",".ogg":"application/ogg",".pdf":"application/pdf",".png":"image/png",".pps":"application/vnd.ms-powerpoint",".ppt":"application/vnd.ms-powerpoint",".ps":"application/postscript",".psd":"image/vnd.adobe.photoshop",".qt":"video/quicktime",".rar":"application/x-rar-compressed",".rdf":"application/rdf+xml",".rss":"application/rss+xml",".rtf":"application/rtf",".svg":"image/svg+xml",".svgz":"image/svg+xml",".swf":"application/x-shockwave-flash",".tar":"application/x-tar",".tbz":"application/x-bzip-compressed-tar",".text":"text/plain",".tif":"image/tiff",".tiff":"image/tiff",".torrent":"application/x-bittorrent",".ttf":"application/x-font-ttf",".txt":"text/plain",".wav":"audio/wav",".webm":"video/webm",".wma":"audio/x-ms-wma",".wmv":"video/x-ms-wmv",".xls":"application/vnd.ms-excel",".xml":"application/xml",".yaml":"text/yaml",".yml":"text/yaml",".zip":"application/zip"}},Nd=jo("render-media"),Hd=[".m4a",".m4b",".m4p",".m4v",".mp4"],Dd=[".m4v",".mkv",".mp4",".webm"],qd=[].concat(Dd,[".m4a",".m4b",".m4p",".mp3"]),Fd=[".mov",".ogv"],Wd=[".aac",".oga",".ogg",".wav",".flac"],jd=[".bmp",".gif",".jpeg",".jpg",".png",".svg"],zd=[".css",".html",".js",".md",".pdf",".txt"],Vd="undefined"!=typeof window&&window.MediaSource,Gd={};(function(o){Gd=function(e,t,n){n=Ot(n);var d=o.alloc(t),a=0;e.on("data",function(t){t.copy(d,a),a+=t.length}).on("end",function(){n(null,d)}).on("error",n)}}).call(this,p({}).Buffer);const Kd=jo("webtorrent:file-stream");var Yd=class extends st.Readable{constructor(o,e){super(e),this.destroyed=!1,this._torrent=o._torrent;const t=e&&e.start||0,n=e&&e.end&&e.end<o.length?e.end:o.length-1,r=o._torrent.pieceLength;this._startPiece=0|(t+o.offset)/r,this._endPiece=0|(n+o.offset)/r,this._piece=this._startPiece,this._offset=t+o.offset-this._startPiece*r,this._missing=n-t+1,this._reading=!1,this._notifying=!1,this._criticalLength=ao(0|1048576/r,2)}_read(){this._reading||(this._reading=!0,this._notify())}_notify(){if(!this._reading||0===this._missing)return;if(!this._torrent.bitfield.get(this._piece))return this._torrent.critical(this._piece,this._piece+this._criticalLength);if(this._notifying)return;if(this._notifying=!0,this._torrent.destroyed)return this._destroy(new Error("Torrent removed"));const r=this._piece;this._torrent.store.get(r,(e,t)=>{if(this._notifying=!1,!this.destroyed){if(e)return this._destroy(e);Kd("read %s (length %s) (err %s)",r,t.length,e&&e.message),this._offset&&(t=t.slice(this._offset),this._offset=0),this._missing<t.length&&(t=t.slice(0,this._missing)),this._missing-=t.length,Kd("pushing buffer of length %s",t.length),this._reading=!1,this.push(t),0===this._missing&&this.push(null)}}),this._piece+=1}destroy(t){this._destroy(null,t)}_destroy(n,e){this.destroyed||(this.destroyed=!0,this._torrent.destroyed||this._torrent.deselect(this._startPiece,this._endPiece,!0),n&&this.emit("error",n),this.emit("close"),e&&e())}},$d={};(function(r){const{EventEmitter:e}=m,{PassThrough:o}=st;$d=class extends e{constructor(o,e){super(),this._torrent=o,this._destroyed=!1,this.name=e.name,this.path=e.path,this.length=e.length,this.offset=e.offset,this.done=!1;const t=e.offset,n=t+e.length-1;this._startPiece=0|t/this._torrent.pieceLength,this._endPiece=0|n/this._torrent.pieceLength,0===this.length&&(this.done=!0,this.emit("done"))}get downloaded(){if(!this._torrent.bitfield)return 0;const{pieces:d,bitfield:e,pieceLength:t}=this._torrent,{_startPiece:n,_endPiece:r}=this,a=d[n];let i=e.get(n)?t-this.offset%t:to(a.length-a.missing-this.offset,0);for(let o=n+1;o<=r;++o)if(e.get(o))i+=t;else{const e=d[o];i+=e.length-e.missing}return ao(i,this.length)}get progress(){return this.length?this.downloaded/this.length:0}select(t){0!==this.length&&this._torrent.select(this._startPiece,this._endPiece,t)}deselect(){0!==this.length&&this._torrent.deselect(this._startPiece,this._endPiece,!1)}createReadStream(e){if(0===this.length){const e=new o;return r.nextTick(()=>{e.end()}),e}const t=new Yd(this,e);return this._torrent.select(t._startPiece,t._endPiece,!0,()=>{t._notify()}),Kr(t,()=>{this._destroyed||this._torrent.destroyed||this._torrent.deselect(t._startPiece,t._endPiece,!0)}),t}getBuffer(t){Gd(this.createReadStream(),this.length,t)}getBlob(n){if("undefined"==typeof window)throw new Error("browser-only method");(function(o,r){if(null!=r&&"string"!=typeof r)throw new Error("Invalid mimetype, expected string.");return new Promise((t,e)=>{const n=[];o.on("data",t=>n.push(t)).once("end",()=>{const o=null==r?new Blob(n):new Blob(n,{type:r});t(o)}).once("error",e)})})(this.createReadStream(),this._getMimeType()).then(e=>n(null,e),n)}getBlobURL(t){if("undefined"==typeof window)throw new Error("browser-only method");Sd(this.createReadStream(),this._getMimeType(),t)}appendTo(r,e,t){if("undefined"==typeof window)throw new Error("browser-only method");Od.append(this,r,e,t)}renderTo(r,e,t){if("undefined"==typeof window)throw new Error("browser-only method");Od.render(this,r,e,t)}_getMimeType(){return Od.mime[pt.extname(this.name).toLowerCase()]}_destroy(){this._destroyed=!0,this._torrent=null}}}).call(this,pe);var Xd=function(o,e){if(!(e>=o.length||0>e)){var t=o.pop();if(e<o.length){var n=o[e];return o[e]=t,n}return t}},Qd={};(function(d){const l=jo("bittorrent-protocol"),e=d.from("\x13BitTorrent protocol"),t=d.from([0,0,0,0]),n=d.from([0,0,0,1,0]),r=d.from([0,0,0,1,1]),i=d.from([0,0,0,1,2]),o=d.from([0,0,0,1,3]),f=[0,0,0,0,0,0,0,0],a=[0,0,0,3,9,0,0];class s{constructor(o,e,t,n){this.piece=o,this.offset=e,this.length=t,this.callback=n}}Qd=class extends st.Duplex{constructor(){super(),this._debugId=ur(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 id(0,{grow:4e5}),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=gr(),this.downloadSpeed=gr(),this._keepAliveInterval=null,this._timeout=null,this._timeoutMs=0,this.destroyed=!1,this._finished=!1,this._parserSize=0,this._parser=null,this._buffer=[],this._bufferSize=0,this.on("finish",this._onFinish),this._parseHandshake()}setKeepAlive(t){this._debug("setKeepAlive %s",t),clearInterval(this._keepAliveInterval),!1!==t&&(this._keepAliveInterval=setInterval(()=>{this.keepAlive()},55e3))}setTimeout(n,e){this._debug("setTimeout ms=%d unref=%s",n,e),this._clearTimeout(),this._timeoutMs=n,this._timeoutUnref=!!e,this._updateTimeout()}destroy(){this.destroyed||(this.destroyed=!0,this._debug("destroy"),this.emit("close"),this.end())}end(...t){this._debug("end"),this._onUninterested(),this._onChoke(),super.end(...t)}use(o){function e(){}const d=o.prototype.name;if(!d)throw new Error("Extension class requires a \"name\" property on the prototype");this._debug("use extension.name=%s",d);const t=this._nextExt,n=new o(this);"function"!=typeof n.onHandshake&&(n.onHandshake=e),"function"!=typeof n.onExtendedHandshake&&(n.onExtendedHandshake=e),"function"!=typeof n.onMessage&&(n.onMessage=e),this.extendedMapping[t]=d,this._ext[d]=n,this[d]=n,this._nextExt+=1}keepAlive(){this._debug("keep-alive"),this._push(t)}handshake(n,l,c){let i,u;if("string"==typeof n?(n=n.toLowerCase(),i=d.from(n,"hex")):n=(i=n).toString("hex"),"string"==typeof l?u=d.from(l,"hex"):l=(u=l).toString("hex"),20!==i.length||20!==u.length)throw new Error("infoHash and peerId MUST have length 20");this._debug("handshake i=%s p=%s exts=%o",n,l,c);const p=d.from(f);p[5]|=16,c&&c.dht&&(p[7]|=1),this._push(d.concat([e,p,i,u])),this._handshakeSent=!0,this.peerExtensions.extended&&!this._extendedHandshakeSent&&this._sendExtendedHandshake()}_sendExtendedHandshake(){const r=Object.assign({},this.extendedHandshake);for(const e in r.m={},this.extendedMapping){const t=this.extendedMapping[e];r.m[t]=+e}this.extended(0,te.encode(r)),this._extendedHandshakeSent=!0}choke(){if(!this.amChoking){for(this.amChoking=!0,this._debug("choke");this.peerRequests.length;)this.peerRequests.pop();this._push(n)}}unchoke(){this.amChoking&&(this.amChoking=!1,this._debug("unchoke"),this._push(r))}interested(){this.amInterested||(this.amInterested=!0,this._debug("interested"),this._push(i))}uninterested(){this.amInterested&&(this.amInterested=!1,this._debug("uninterested"),this._push(o))}have(t){this._debug("have %d",t),this._message(4,[t],null)}bitfield(e){this._debug("bitfield"),d.isBuffer(e)||(e=e.buffer),this._message(5,[],e)}request(o,e,t,n){return n||(n=()=>{}),this._finished?n(new Error("wire is closed")):this.peerChoking?n(new Error("peer is choking")):(this._debug("request index=%d offset=%d length=%d",o,e,t),this.requests.push(new s(o,e,t,n)),this._updateTimeout(),void this._message(6,[o,e,t],null))}piece(r,e,t){this._debug("piece index=%d offset=%d",r,e),this.uploaded+=t.length,this.uploadSpeed(t.length),this.emit("upload",t.length),this._message(7,[r,e],t)}cancel(r,e,t){this._debug("cancel index=%d offset=%d length=%d",r,e,t),this._callback(this._pull(this.requests,r,e,t),new Error("request was cancelled"),null),this._message(8,[r,e,t],null)}port(e){this._debug("port %d",e);const t=d.from(a);t.writeUInt16BE(e,5),this._push(t)}extended(e,o){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 t=d.from([e]),n=d.isBuffer(o)?o:te.encode(o);this._message(20,[],d.concat([t,n]))}}_read(){}_message(e,t,n){const r=n?n.length:0,o=d.allocUnsafe(5+4*t.length);o.writeUInt32BE(o.length+r-4,0),o[4]=e;for(let r=0;r<t.length;r++)o.writeUInt32BE(t[r],5+4*r);this._push(o),n&&this._push(n)}_push(t){if(!this._finished)return this.push(t)}_onKeepAlive(){this._debug("got keep-alive"),this.emit("keep-alive")}_onHandshake(o,e,t){const n=o.toString("hex"),r=e.toString("hex");for(var d in this._debug("got handshake i=%s p=%s exts=%o",n,r,t),this.peerId=r,this.peerIdBuffer=e,this.peerExtensions=t,this.emit("handshake",n,r,t),this._ext)this._ext[d].onHandshake(n,r,t);t.extended&&this._handshakeSent&&!this._extendedHandshakeSent&&this._sendExtendedHandshake()}_onChoke(){for(this.peerChoking=!0,this._debug("got choke"),this.emit("choke");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(t){this.peerPieces.get(t)||(this._debug("got have %d",t),this.peerPieces.set(t,!0),this.emit("have",t))}_onBitField(t){this.peerPieces=new id(t),this._debug("got bitfield"),this.emit("bitfield",this.peerPieces)}_onRequest(o,e,t){if(!this.amChoking){this._debug("got request index=%d offset=%d length=%d",o,e,t);const d=(d,r)=>{if(n===this._pull(this.peerRequests,o,e,t))return d?this._debug("error satisfying request index=%d offset=%d length=%d (%s)",o,e,t,d.message):void this.piece(o,e,r)};var n=new s(o,e,t,d);this.peerRequests.push(n),this.emit("request",o,e,t,d)}}_onPiece(r,e,t){this._debug("got piece index=%d offset=%d",r,e),this._callback(this._pull(this.requests,r,e,t.length),null,t),this.downloaded+=t.length,this.downloadSpeed(t.length),this.emit("download",t.length),this.emit("piece",r,e,t)}_onCancel(r,e,t){this._debug("got cancel index=%d offset=%d length=%d",r,e,t),this._pull(this.peerRequests,r,e,t),this.emit("cancel",r,e,t)}_onPort(t){this._debug("got port %d",t),this.emit("port",t)}_onExtended(n,r){if(0===n){let t,e;try{t=te.decode(r)}catch(e){this._debug("ignoring invalid extended handshake: %s",e.message||e)}if(!t)return;if(this.peerExtendedHandshake=t,"object"==typeof t.m)for(e in t.m)this.peerExtendedMapping[e]=+t.m[e].toString();for(e in this._ext)this.peerExtendedMapping[e]&&this._ext[e].onExtendedHandshake(this.peerExtendedHandshake);this._debug("got extended handshake"),this.emit("extended","handshake",this.peerExtendedHandshake)}else this.extendedMapping[n]&&(n=this.extendedMapping[n],this._ext[n]&&this._ext[n].onMessage(r)),this._debug("got extended message ext=%s",n),this.emit("extended",n,r)}_onTimeout(){this._debug("request timed out"),this._callback(this.requests.shift(),new Error("request has timed out"),null),this.emit("timeout")}_write(e,t,n){for(this._bufferSize+=e.length,this._buffer.push(e);this._bufferSize>=this._parserSize;){const e=1===this._buffer.length?this._buffer[0]:d.concat(this._buffer);this._bufferSize-=this._parserSize,this._buffer=this._bufferSize?[e.slice(this._parserSize)]:[],this._parser(e.slice(0,this._parserSize))}n(null)}_callback(r,e,t){r&&(this._clearTimeout(),this.peerChoking||this._finished||this._updateTimeout(),r.callback(e,t))}_clearTimeout(){this._timeout&&(clearTimeout(this._timeout),this._timeout=null)}_updateTimeout(){this._timeoutMs&&this.requests.length&&!this._timeout&&(this._timeout=setTimeout(()=>this._onTimeout(),this._timeoutMs),this._timeoutUnref&&this._timeout.unref&&this._timeout.unref())}_parse(n,e){this._parserSize=n,this._parser=e}_onMessageLength(n){const e=n.readUInt32BE(0);0<e?this._parse(e,this._onMessage):(this._onKeepAlive(),this._parse(4,this._onMessageLength))}_onMessage(t){switch(this._parse(4,this._onMessageLength),t[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(t.readUInt32BE(1));case 5:return this._onBitField(t.slice(1));case 6:return this._onRequest(t.readUInt32BE(1),t.readUInt32BE(5),t.readUInt32BE(9));case 7:return this._onPiece(t.readUInt32BE(1),t.readUInt32BE(5),t.slice(9));case 8:return this._onCancel(t.readUInt32BE(1),t.readUInt32BE(5),t.readUInt32BE(9));case 9:return this._onPort(t.readUInt16BE(1));case 20:return this._onExtended(t.readUInt8(1),t.slice(2));default:return this._debug("got unknown message"),this.emit("unknownmessage",t);}}_parseHandshake(){this._parse(1,n=>{const r=n.readUInt8(0);this._parse(r+48,t=>{const o=t.slice(0,r);return"BitTorrent protocol"===o.toString()?void(t=t.slice(r),this._onHandshake(t.slice(8,28),t.slice(28,48),{dht:!!(1&t[7]),extended:!!(16&t[5])}),this._parse(4,this._onMessageLength)):(this._debug("Error: wire not speaking BitTorrent protocol (%s)",o.toString()),void this.end())})})}_onFinish(){for(this._finished=!0,this.push(null);this.read(););for(clearInterval(this._keepAliveInterval),this._parse(Number.MAX_VALUE,()=>{});this.peerRequests.length;)this.peerRequests.pop();for(;this.requests.length;)this._callback(this.requests.pop(),new Error("wire was closed"),null)}_debug(...t){t[0]=`[${this._debugId}] ${t[0]}`,l(...t)}_pull(o,e,t,n){for(let r=0;r<o.length;r++){const d=o[r];if(d.piece===e&&d.offset===t&&d.length===n)return Xd(o,r),d}return null}}}).call(this,p({}).Buffer);var Jd={};(function(n){const m=jo("webtorrent:webconn");Jd=class extends Qd{constructor(n,e){super(),this.url=n,this.webPeerId=qo.sync(n),this._torrent=e,this._init()}_init(){this.setKeepAlive(!0),this.once("handshake",t=>{if(!this.destroyed){this.handshake(t,this.webPeerId);const e=this._torrent.pieces.length,n=new id(e);for(let t=0;t<=e;t++)n.set(t,!0);this.bitfield(n)}}),this.once("interested",()=>{m("interested"),this.unchoke()}),this.on("uninterested",()=>{m("uninterested")}),this.on("choke",()=>{m("choke")}),this.on("unchoke",()=>{m("unchoke")}),this.on("bitfield",()=>{m("bitfield")}),this.on("request",(t,e,n,r)=>{m("request pieceIndex=%d offset=%d length=%d",t,e,n),this.httpRequest(t,e,n,r)})}httpRequest(t,r,i,s){const o=t*this._torrent.pieceLength+r,a=o+i-1,p=this._torrent.files;let c;if(1>=p.length)c=[{url:this.url,start:o,end:a}];else{const t=p.filter(t=>t.offset<=a&&t.offset+t.length>o);if(1>t.length)return s(new Error("Could not find file corresponnding to web seed range request"));c=t.map(n=>{const e=n.offset+n.length-1;return{url:this.url+("/"===this.url[this.url.length-1]?"":"/")+n.path,fileOffsetInRange:to(n.offset-o,0),start:to(o-n.offset,0),end:ao(e,a-n.offset)}})}let h,g=0,_=!1;1<c.length&&(h=n.alloc(i)),c.forEach(o=>{function d(e,t){return 200>e.statusCode||300<=e.statusCode?(_=!0,s(new Error(`Unexpected HTTP status code ${e.statusCode}`))):void(m("Got data of length %d",t.length),1===c.length?s(null,t):(t.copy(h,o.fileOffsetInRange),++g===c.length&&s(null,h)))}const l=o.url,e=o.start,n=o.end;m("Requesting url=%s pieceIndex=%d offset=%d length=%d start=%d end=%d",l,t,r,i,e,n);const a={url:l,method:"GET",headers:{"user-agent":`WebTorrent/${"0.107.0"} (https://webtorrent.io)`,range:`bytes=${e}-${n}`}};nr.concat(a,(r,e,t)=>{if(!_)return r?"undefined"==typeof window||l.startsWith(`${window.location.origin}/`)?(_=!0,s(r)):nr.head(l,(e,t)=>{if(!_){if(e)return _=!0,s(e);if(200>t.statusCode||300<=t.statusCode)return _=!0,s(new Error(`Unexpected HTTP status code ${t.statusCode}`));if(t.url===l)return _=!0,s(r);a.url=t.url,nr.concat(a,(r,e,t)=>{if(!_)return r?(_=!0,s(r)):void d(e,t)})}}):void d(e,t)})})}destroy(){super.destroy(),this._torrent=null}}}).call(this,p({}).Buffer);var Zd={};const ea=jo("webtorrent:peer");Zd.createWebRTCPeer=(r,e)=>{const t=new ta(r.id,"webrtc");return t.conn=r,t.swarm=e,t.conn.connected?t.onConnect():(t.conn.once("connect",()=>{t.onConnect()}),t.conn.once("error",n=>{t.destroy(n)}),t.startConnectTimeout()),t},Zd.createTCPOutgoingPeer=(r,e)=>{const t=new ta(r,"tcpOutgoing");return t.addr=r,t.swarm=e,t},Zd.createWebSeedPeer=(r,e)=>{const t=new ta(r,"webSeed");return t.swarm=e,t.conn=new Jd(r,e),t.onConnect(),t};class ta{constructor(n,e){this.id=n,this.type=e,ea("new %s Peer %s",e,n),this.addr=null,this.conn=null,this.swarm=null,this.wire=null,this.connected=!1,this.destroyed=!1,this.timeout=null,this.retries=0,this.sentHandshake=!1}onConnect(){if(!this.destroyed){this.connected=!0,ea("Peer %s connected",this.id),clearTimeout(this.connectTimeout);const n=this.conn;n.once("end",()=>{this.destroy()}),n.once("close",()=>{this.destroy()}),n.once("finish",()=>{this.destroy()}),n.once("error",t=>{this.destroy(t)});const e=this.wire=new Qd;e.type=this.type,e.once("end",()=>{this.destroy()}),e.once("close",()=>{this.destroy()}),e.once("finish",()=>{this.destroy()}),e.once("error",t=>{this.destroy(t)}),e.once("handshake",(n,e)=>{this.onHandshake(n,e)}),this.startHandshakeTimeout(),n.pipe(e).pipe(n),this.swarm&&!this.sentHandshake&&this.handshake()}}onHandshake(r,e){if(!this.swarm)return;if(this.destroyed)return;if(this.swarm.destroyed)return this.destroy(new Error("swarm already destroyed"));if(r!==this.swarm.infoHash)return this.destroy(new Error("unexpected handshake info hash for this swarm"));if(e===this.swarm.peerId)return this.destroy(new Error("refusing to connect to ourselves"));ea("Peer %s got handshake %s",this.id,r),clearTimeout(this.handshakeTimeout),this.retries=0;let t=this.addr;!t&&this.conn.remoteAddress&&this.conn.remotePort&&(t=`${this.conn.remoteAddress}:${this.conn.remotePort}`),this.swarm._onWire(this.wire,t),this.swarm&&!this.swarm.destroyed&&(this.sentHandshake||this.handshake())}handshake(){const t={dht:!this.swarm.private&&!!this.swarm.client.dht};this.wire.handshake(this.swarm.infoHash,this.swarm.client.peerId,t),this.sentHandshake=!0}startConnectTimeout(){clearTimeout(this.connectTimeout),this.connectTimeout=setTimeout(()=>{this.destroy(new Error("connect timeout"))},"webrtc"===this.type?25e3:5e3),this.connectTimeout.unref&&this.connectTimeout.unref()}startHandshakeTimeout(){clearTimeout(this.handshakeTimeout),this.handshakeTimeout=setTimeout(()=>{this.destroy(new Error("handshake timeout"))},25e3),this.handshakeTimeout.unref&&this.handshakeTimeout.unref()}destroy(o){if(!this.destroyed){this.destroyed=!0,this.connected=!1,ea("destroy %s (error: %s)",this.id,o&&(o.message||o)),clearTimeout(this.connectTimeout),clearTimeout(this.handshakeTimeout);const e=this.swarm,t=this.conn,n=this.wire;this.swarm=null,this.conn=null,this.wire=null,e&&n&&Xd(e.wires,e.wires.indexOf(n)),t&&(t.on("error",()=>{}),t.destroy()),n&&n.destroy(),e&&e.removePeer(this.id)}}}var na={};(function(d,a){function g(n,e){return 2+eo(e*n.downloadSpeed()/md.BLOCK_LENGTH)}function l(){}const t=jo("webtorrent:torrent"),e=m.EventEmitter,u=3*md.BLOCK_LENGTH,n=d.browser?1/0:2,r=[1e3,5e3,15e3];let o;try{o=pt.join(St.statSync("/tmp")&&"/tmp","webtorrent")}catch(e){o=pt.join("function"==typeof oe.tmpdir?oe.tmpdir():"/","webtorrent")}na=class extends e{constructor(r,e,t){super(),this._debugId="unknown infohash",this.client=e,this.announce=t.announce,this.urlList=t.urlList,this.path=t.path,this.skipVerify=!!t.skipVerify,this._store=t.store||fd,this._getAnnounceOpts=t.getAnnounceOpts,this.strategy=t.strategy||"sequential",this.maxWebConns=t.maxWebConns||4,this._rechokeNumSlots=!1===t.uploads||0===t.uploads?0:+t.uploads||10,this._rechokeOptimisticWire=null,this._rechokeOptimisticTime=0,this._rechokeIntervalId=null,this.ready=!1,this.destroyed=!1,this.paused=!1,this.done=!1,this.metadata=null,this.store=null,this.files=[],this.pieces=[],this._amInterested=!1,this._selections=[],this._critical=[],this.wires=[],this._queue=[],this._peers={},this._peersLength=0,this.received=0,this.uploaded=0,this._downloadSpeed=gr(),this._uploadSpeed=gr(),this._servers=[],this._xsRequests=[],this._fileModtimes=t.fileModtimes,null!==r&&this._onTorrentId(r),this._debug("new torrent")}get timeRemaining(){return this.done?0:0===this.downloadSpeed?1/0:1e3*((this.length-this.downloaded)/this.downloadSpeed)}get downloaded(){if(!this.bitfield)return 0;let r=0;for(let e=0,t=this.pieces.length;e<t;++e)if(this.bitfield.get(e))r+=e==t-1?this.lastPieceLength:this.pieceLength;else{const t=this.pieces[e];r+=t.length-t.missing}return r}get downloadSpeed(){return this._downloadSpeed()}get uploadSpeed(){return this._uploadSpeed()}get progress(){return this.length?this.downloaded/this.length:0}get ratio(){return this.uploaded/(this.received||1)}get numPeers(){return this.wires.length}get torrentFileBlobURL(){if("undefined"==typeof window)throw new Error("browser-only property");return this.torrentFile?URL.createObjectURL(new Blob([this.torrentFile],{type:"application/x-bittorrent"})):null}get _numQueued(){return this._queue.length+(this._peersLength-this._numConns)}get _numConns(){let n=0;for(const e in this._peers)this._peers[e].connected&&(n+=1);return n}get swarm(){return console.warn("WebTorrent: `torrent.swarm` is deprecated. Use `torrent` directly instead."),this}_onTorrentId(e){if(this.destroyed)return;let t;try{t=Zo(e)}catch(e){}t?(this.infoHash=t.infoHash,this._debugId=t.infoHash.toString("hex").substring(0,7),d.nextTick(()=>{this.destroyed||this._onParsedTorrent(t)})):Zo.remote(e,(n,e)=>{if(!this.destroyed)return n?this._destroy(n):void this._onParsedTorrent(e)})}_onParsedTorrent(t){if(!this.destroyed){if(this._processParsedTorrent(t),!this.infoHash)return this._destroy(new Error("Malformed torrent data: No info hash"));this.path||(this.path=pt.join(o,this.infoHash)),this._rechokeIntervalId=setInterval(()=>{this._rechoke()},1e4),this._rechokeIntervalId.unref&&this._rechokeIntervalId.unref(),this.emit("_infoHash",this.infoHash),this.destroyed||(this.emit("infoHash",this.infoHash),this.destroyed||(this.client.listening?this._onListening():this.client.once("listening",()=>{this._onListening()})))}}_processParsedTorrent(t){this._debugId=t.infoHash.toString("hex").substring(0,7),this.announce&&(t.announce=t.announce.concat(this.announce)),this.client.tracker&&a.WEBTORRENT_ANNOUNCE&&!this.private&&(t.announce=t.announce.concat(a.WEBTORRENT_ANNOUNCE)),this.urlList&&(t.urlList=t.urlList.concat(this.urlList)),or(t.announce),or(t.urlList),Object.assign(this,t),this.magnetURI=Zo.toMagnetURI(t),this.torrentFile=Zo.toTorrentFile(t)}_onListening(){if(this.discovery||this.destroyed)return;let t=this.client.tracker;t&&(t=Object.assign({},this.client.tracker,{getAnnounceOpts:()=>{const t={uploaded:this.uploaded,downloaded:this.downloaded,left:to(this.length-this.downloaded,0)};return this.client.tracker.getAnnounceOpts&&Object.assign(t,this.client.tracker.getAnnounceOpts()),this._getAnnounceOpts&&Object.assign(t,this._getAnnounceOpts()),t}})),this.discovery=new ud({infoHash:this.infoHash,announce:this.announce,peerId:this.client.peerId,dht:!this.private&&this.client.dht,tracker:t,port:this.client.torrentPort,userAgent:`WebTorrent/${"0.107.0"} (https://webtorrent.io)`}),this.discovery.on("error",t=>{this._destroy(t)}),this.discovery.on("peer",t=>{"string"==typeof t&&this.done||this.addPeer(t)}),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",t=>{this.emit("warning",t)}),this.info?this._onMetadata(this):this.xs&&this._getMetadataFromServer()}_getMetadataFromServer(){const d=this,e=(Array.isArray(this.xs)?this.xs:[this.xs]).map(e=>t=>{!function(e,t){if(0!==e.indexOf("http://")&&0!==e.indexOf("https://"))return d.emit("warning",new Error(`skipping non-http xs param: ${e}`)),t(null);let n;try{n=nr.concat({url:e,method:"GET",headers:{"user-agent":"WebTorrent/0.107.0 (https://webtorrent.io)"}},function(n,r,a){if(d.destroyed)return t(null);if(d.metadata)return t(null);if(n)return d.emit("warning",new Error(`http error from xs param: ${e}`)),t(null);if(200!==r.statusCode)return d.emit("warning",new Error(`non-200 status code ${r.statusCode} from xs param: ${e}`)),t(null);let i;try{i=Zo(a)}catch(e){}return i?i.infoHash===d.infoHash?(d._onMetadata(i),void t(null)):(d.emit("warning",new Error(`got torrent file with incorrect info hash from xs param: ${e}`)),t(null)):(d.emit("warning",new Error(`got invalid torrent file from xs param: ${e}`)),t(null))})}catch(n){return d.emit("warning",new Error(`skipping invalid url xs param: ${e}`)),t(null)}d._xsRequests.push(n)}(e,t)});Oo(e)}_onMetadata(n){if(this.metadata||this.destroyed)return;let e;if(this._debug("got metadata"),this._xsRequests.forEach(t=>{t.abort()}),this._xsRequests=[],n&&n.infoHash)e=n;else try{e=Zo(n)}catch(e){return this._destroy(e)}if(this._processParsedTorrent(e),this.metadata=this.torrentFile,this.client.enableWebSeeds&&this.urlList.forEach(t=>{this.addWebSeed(t)}),this._rarityMap=new class{constructor(t){this._torrent=t,this._numPieces=t.pieces.length,this._pieces=Array(this._numPieces),this._onWire=t=>{this.recalculate(),this._initWire(t)},this._onWireHave=t=>{this._pieces[t]+=1},this._onWireBitfield=()=>{this.recalculate()},this._torrent.wires.forEach(t=>{this._initWire(t)}),this._torrent.on("wire",this._onWire),this.recalculate()}getRarestPiece(o){let e=[],d=1/0;for(let t=0;t<this._numPieces;++t){if(o&&!o(t))continue;const n=this._pieces[t];n===d?e.push(t):n<d&&(e=[t],d=n)}return e.length?e[0|Math.random()*e.length]:-1}destroy(){this._torrent.removeListener("wire",this._onWire),this._torrent.wires.forEach(t=>{this._cleanupWireEvents(t)}),this._torrent=null,this._pieces=null,this._onWire=null,this._onWireHave=null,this._onWireBitfield=null}_initWire(n){n._onClose=()=>{this._cleanupWireEvents(n);for(let e=0;e<this._numPieces;++e)this._pieces[e]-=n.peerPieces.get(e)},n.on("have",this._onWireHave),n.on("bitfield",this._onWireBitfield),n.once("close",n._onClose)}recalculate(){this._pieces.fill(0);for(const n of this._torrent.wires)for(let e=0;e<this._numPieces;++e)this._pieces[e]+=n.peerPieces.get(e)}_cleanupWireEvents(t){t.removeListener("have",this._onWireHave),t.removeListener("bitfield",this._onWireBitfield),t._onClose&&t.removeListener("close",t._onClose),t._onClose=null}}(this),this.store=new pd(new this._store(this.pieceLength,{torrent:{infoHash:this.infoHash},files:this.files.map(t=>({path:pt.join(this.path,t.path),length:t.length,offset:t.offset})),length:this.length,name:this.infoHash})),this.files=this.files.map(t=>new $d(this,t)),this.so){const r=yd.parse(this.so);this.files.forEach((e,t)=>{r.includes(t)&&this.files[t].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((r,e)=>{const t=e===this.pieces.length-1?this.lastPieceLength:this.pieceLength;return new md(t)}),this._reservations=this.pieces.map(()=>[]),this.bitfield=new id(this.pieces.length),this.wires.forEach(t=>{t.ut_metadata&&t.ut_metadata.setMetadata(this.metadata),this._onWireWithMetadata(t)}),this.skipVerify)this._markAllVerified(),this._onStore();else{const r=t=>t?this._destroy(t):void(this._debug("done verifying"),this._onStore());this._debug("verifying existing torrent data"),this._fileModtimes&&this._store===fd?this.getFileModtimes((e,o)=>e?this._destroy(e):void(this.files.map((n,e)=>o[e]===this._fileModtimes[e]).every(t=>t)?(this._markAllVerified(),this._onStore()):this._verifyPieces(r))):this._verifyPieces(r)}this.emit("metadata")}getFileModtimes(r){const o=[];zr(this.files.map((t,d)=>n=>{St.stat(pt.join(this.path,t.path),(t,e)=>t&&"ENOENT"!==t.code?n(t):void(o[d]=e&&e.mtime.getTime(),n(null)))}),n,e=>{this._debug("done getting file modtimes"),r(e,o)})}_verifyPieces(e){zr(this.pieces.map((e,r)=>n=>this.destroyed?n(new Error("torrent is destroyed")):void this.store.get(r,(e,t)=>this.destroyed?n(new Error("torrent is destroyed")):e?d.nextTick(n,null):void qo(t,t=>{if(this.destroyed)return n(new Error("torrent is destroyed"));if(t===this._hashes[r]){if(!this.pieces[r])return;this._debug("piece verified %s",r),this._markVerified(r)}else this._debug("piece invalid %s",r);n(null)}))),n,e)}rescanFiles(n){if(this.destroyed)throw new Error("torrent is destroyed");n||(n=l),this._verifyPieces(e=>e?(this._destroy(e),n(e)):void(this._checkDone(),n(null)))}_markAllVerified(){for(let t=0;t<this.pieces.length;t++)this._markVerified(t)}_markVerified(t){this.pieces[t]=null,this._reservations[t]=null,this.bitfield.set(t,!0)}_onStore(){this.destroyed||(this._debug("on store"),this.ready=!0,this.emit("ready"),this._checkDone(),this._updateSelections())}destroy(t){this._destroy(null,t)}_destroy(r,e){if(!this.destroyed){for(const e in this.destroyed=!0,this._debug("destroy"),this.client._remove(this),clearInterval(this._rechokeIntervalId),this._xsRequests.forEach(t=>{t.abort()}),this._rarityMap&&this._rarityMap.destroy(),this._peers)this.removePeer(e);this.files.forEach(t=>{t instanceof $d&&t._destroy()});const t=this._servers.map(n=>e=>{n.destroy(e)});this.discovery&&t.push(t=>{this.discovery.destroy(t)}),this.store&&t.push(t=>{this.store.close(t)}),Oo(t,e),r&&(0===this.listenerCount("error")?this.client.emit("error",r):this.emit("error",r)),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(r){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 e;if("string"==typeof r){let t;try{t=mr(r)}catch(e){return this._debug("ignoring peer: invalid %s",r),this.emit("invalidPeer",r),!1}e=t[0]}else"string"==typeof r.remoteAddress&&(e=r.remoteAddress);if(e&&this.client.blocked.contains(e))return this._debug("ignoring peer: blocked %s",r),"string"!=typeof r&&r.destroy(),this.emit("blockedPeer",r),!1}const e=!!this._addPeer(r);return e?this.emit("peer",r):this.emit("invalidPeer",r),e}_addPeer(r){if(this.destroyed)return"string"!=typeof r&&r.destroy(),null;if("string"==typeof r&&!this._validAddr(r))return this._debug("ignoring peer: invalid %s",r),null;const e=r&&r.id||r;if(this._peers[e])return this._debug("ignoring peer: duplicate (%s)",e),"string"!=typeof r&&r.destroy(),null;if(this.paused)return this._debug("ignoring peer: torrent is paused"),"string"!=typeof r&&r.destroy(),null;let t;return this._debug("add peer %s",e),t="string"==typeof r?Zd.createTCPOutgoingPeer(r,this):Zd.createWebRTCPeer(r,this),this._peers[t.id]=t,this._peersLength+=1,"string"==typeof r&&(this._queue.push(t),this._drain()),t}addWebSeed(n){if(this.destroyed)throw new Error("torrent is destroyed");if(!/^https?:\/\/.+/.test(n))return this.emit("warning",new Error(`ignoring invalid web seed: ${n}`)),void this.emit("invalidPeer",n);if(this._peers[n])return this.emit("warning",new Error(`ignoring duplicate web seed: ${n}`)),void this.emit("invalidPeer",n);this._debug("add web seed %s",n);const e=Zd.createWebSeedPeer(n,this);this._peers[e.id]=e,this._peersLength+=1,this.emit("peer",n)}_addIncomingPeer(t){return this.destroyed?t.destroy(new Error("torrent is destroyed")):this.paused?t.destroy(new Error("torrent is paused")):(this._debug("add incoming peer %s",t.id),this._peers[t.id]=t,void(this._peersLength+=1))}removePeer(n){const r=n&&n.id||n;(n=this._peers[r])&&(this._debug("removePeer %s",r),delete this._peers[r],this._peersLength-=1,n.destroy(),this._drain())}select(o,e,t,d){if(this.destroyed)throw new Error("torrent is destroyed");if(0>o||e<o||this.pieces.length<=e)throw new Error(`invalid selection ${o} : ${e}`);t=+t||0,this._debug("select %s-%s (priority %s)",o,e,t),this._selections.push({from:o,to:e,offset:0,priority:t,notify:d||l}),this._selections.sort((n,e)=>e.priority-n.priority),this._updateSelections()}deselect(o,e,t){if(this.destroyed)throw new Error("torrent is destroyed");t=+t||0,this._debug("deselect %s-%s (priority %s)",o,e,t);for(let n=0;n<this._selections.length;++n){const r=this._selections[n];if(r.from===o&&r.to===e&&r.priority===t){this._selections.splice(n,1);break}}this._updateSelections()}critical(r,e){if(this.destroyed)throw new Error("torrent is destroyed");this._debug("critical %s-%s",r,e);for(let t=r;t<=e;++t)this._critical[t]=!0;this._updateSelections()}_onWire(r,t){if(this._debug("got wire %s (%s)",r._debugId,t||"Unknown"),r.on("download",t=>{this.destroyed||(this.received+=t,this._downloadSpeed(t),this.client._downloadSpeed(t),this.emit("download",t),this.client.emit("download",t))}),r.on("upload",t=>{this.destroyed||(this.uploaded+=t,this._uploadSpeed(t),this.client._uploadSpeed(t),this.emit("upload",t),this.client.emit("upload",t))}),this.wires.push(r),t){const n=mr(t);r.remoteAddress=n[0],r.remotePort=n[1]}this.client.dht&&this.client.dht.listening&&r.on("port",n=>{if(!this.destroyed&&!this.client.dht.destroyed){if(!r.remoteAddress)return this._debug("ignoring PORT from peer with no address");if(0===n||65536<n)return this._debug("ignoring invalid PORT from peer");this._debug("port: %s (from %s)",n,t),this.client.dht.addNode({host:r.remoteAddress,port:n})}}),r.on("timeout",()=>{this._debug("wire timeout (%s)",t),r.destroy()}),r.setTimeout(3e4,!0),r.setKeepAlive(!0),r.use(bd(this.metadata)),r.ut_metadata.on("warning",t=>{this._debug("ut_metadata warning: %s",t.message)}),this.metadata||(r.ut_metadata.on("metadata",t=>{this._debug("got metadata via ut_metadata"),this._onMetadata(t)}),r.ut_metadata.fetch()),!0,this.emit("wire",r,t),this.metadata&&d.nextTick(()=>{this._onWireWithMetadata(r)})}_onWireWithMetadata(o){let e=null;const d=()=>{this.destroyed||o.destroyed||(this._numQueued>2*(this._numConns-this.numPeers)&&o.amInterested?o.destroy():(e=setTimeout(d,5e3)).unref&&e.unref())};let n;const a=()=>{if(o.peerPieces.buffer.length===this.bitfield.buffer.length){for(n=0;n<this.pieces.length;++n)if(!o.peerPieces.get(n))return;o.isSeeder=!0,o.choke()}};o.on("bitfield",()=>{a(),this._update()}),o.on("have",()=>{a(),this._update()}),o.once("interested",()=>{o.unchoke()}),o.once("close",()=>{clearTimeout(e)}),o.on("choke",()=>{clearTimeout(e),(e=setTimeout(d,5e3)).unref&&e.unref()}),o.on("unchoke",()=>{clearTimeout(e),this._update()}),o.on("request",(e,t,n,r)=>131072<n?o.destroy():void(this.pieces[e]||this.store.get(e,{offset:t,length:n},r))),o.bitfield(this.bitfield),o.uninterested(),o.peerExtensions.dht&&this.client.dht&&this.client.dht.listening&&o.port(this.client.dht.address().port),"webSeed"!==o.type&&(e=setTimeout(d,5e3)).unref&&e.unref(),o.isSeeder=!1,a()}_updateSelections(){this.ready&&!this.destroyed&&(d.nextTick(()=>{this._gcSelections()}),this._updateInterest(),this._update())}_gcSelections(){for(let r=0;r<this._selections.length;++r){const e=this._selections[r],t=e.offset;for(;this.bitfield.get(e.from+e.offset)&&e.from+e.offset<e.to;)e.offset+=1;t!==e.offset&&e.notify(),e.to===e.from+e.offset&&this.bitfield.get(e.from+e.offset)&&(this._selections.splice(r,1),r-=1,e.notify(),this._updateInterest())}this._selections.length||this.emit("idle")}_updateInterest(){const t=this._amInterested;this._amInterested=!!this._selections.length,this.wires.forEach(r=>{let e=!1;for(let t=0;t<this.pieces.length;++t)if(this.pieces[t]&&r.peerPieces.get(t)){e=!0;break}e?r.interested():r.uninterested()}),t!==this._amInterested&&(this._amInterested?this.emit("interested"):this.emit("uninterested"))}_update(){if(!this.destroyed){const t=(o=this.wires,d=0,function(){if(d===o.length)return null;var t=o.length-d,e=0|Math.random()*t,n=o[d+e],r=o[d];return o[d]=n,o[d+e]=r,d++,n});var o,d;for(let e;e=t();)this._updateWireWrapper(e)}}_updateWireWrapper(n){const e=this;"undefined"!=typeof window&&"function"==typeof window.requestIdleCallback?window.requestIdleCallback(function(){e._updateWire(n)}):e._updateWire(n)}_updateWire(d){function e(e,t,n,r){return o=>o>=e&&o<=t&&!(o in n)&&d.peerPieces.get(o)&&(!r||r(o))}function s(t){let e=t;for(let n=t;n<l._selections.length&&l._selections[n].priority;n++)e=n;const o=l._selections[t];l._selections[t]=l._selections[e],l._selections[e]=o}function o(t){if(d.requests.length>=m)return!0;const n=function(){const t=d.downloadSpeed()||1;if(t>u)return()=>!0;const n=to(1,d.requests.length)*md.BLOCK_LENGTH/t;let r=10,i=0;return o=>{if(!r||l.bitfield.get(o))return!0;for(let e=l.pieces[o].missing;i<l.wires.length;i++){const d=l.wires[i],a=d.downloadSpeed();if(!(a<u)&&!(a<=t)&&d.peerPieces.get(o)&&!(0<(e-=a*n)))return r--,!1}return!0}}();for(let r=0;r<l._selections.length;r++){const o=l._selections[r];let a;if("rarest"===l.strategy){const i=o.from+o.offset,c=o.to,u={};let f=0;for(const p=e(i,c,u,n);f<c-i+1&&!(0>(a=l._rarityMap.getRarestPiece(p)));){for(;l._request(d,a,l._critical[a]||t););if(!(d.requests.length<m))return o.priority&&s(r),!0;u[a]=!0,f++}}else for(a=o.from+o.offset;a<=o.to;a++)if(d.peerPieces.get(a)&&n(a)){for(;l._request(d,a,l._critical[a]||t););if(!(d.requests.length<m))return o.priority&&s(r),!0}}return!1}const l=this;if(d.peerChoking)return;if(!d.downloaded)return function(){if(!d.requests.length)for(let t=l._selections.length;t--;){const a=l._selections[t];let r;if("rarest"===l.strategy){const t=a.from+a.offset,n=a.to,o={};let i=0;for(const a=e(t,n,o);i<n-t+1&&!(0>(r=l._rarityMap.getRarestPiece(a)));){if(l._request(d,r,!1))return;o[r]=!0,i+=1}}else for(r=a.to;r>=a.from+a.offset;--r)if(d.peerPieces.get(r)&&l._request(d,r,!1))return}}();const t=g(d,.5);if(d.requests.length>=t)return;const m=g(d,1);o(!1)||o(!0)}_rechoke(){if(!this.ready)return;0<this._rechokeOptimisticTime?this._rechokeOptimisticTime-=1:this._rechokeOptimisticWire=null;const o=[];this.wires.forEach(e=>{e.isSeeder||e===this._rechokeOptimisticWire||o.push({wire:e,downloadSpeed:e.downloadSpeed(),uploadSpeed:e.uploadSpeed(),salt:Math.random(),isChoked:!0})}),o.sort(function(n,e){return n.downloadSpeed===e.downloadSpeed?n.uploadSpeed===e.uploadSpeed?n.wire.amChoking===e.wire.amChoking?n.salt-e.salt:n.wire.amChoking?1:-1:e.uploadSpeed-n.uploadSpeed:e.downloadSpeed-n.downloadSpeed});let e=0,d=0;for(;d<o.length&&e<this._rechokeNumSlots;++d)o[d].isChoked=!1,o[d].wire.peerInterested&&(e+=1);if(!this._rechokeOptimisticWire&&d<o.length&&this._rechokeNumSlots){const e=o.slice(d).filter(t=>t.wire.peerInterested),t=e[(a=e.length,0|Math.random()*a)];t&&(t.isChoked=!1,this._rechokeOptimisticWire=t.wire,this._rechokeOptimisticTime=2)}var a;o.forEach(t=>{t.wire.amChoking!==t.isChoked&&(t.isChoked?t.wire.choke():t.wire.unchoke())})}_hotswap(d,i){const e=d.downloadSpeed();if(e<md.BLOCK_LENGTH)return!1;if(!this._reservations[i])return!1;const n=this._reservations[i];if(!n)return!1;let r,l,c=1/0;for(l=0;l<n.length;l++){const o=n[l];if(!o||o===d)continue;const t=o.downloadSpeed();t>=u||2*t>e||t>c||(r=o,c=t)}if(!r)return!1;for(l=0;l<n.length;l++)n[l]===r&&(n[l]=null);for(l=0;l<r.requests.length;l++){const t=r.requests[l];t.piece===i&&this.pieces[i].cancel(0|t.offset/md.BLOCK_LENGTH)}return this.emit("hotswap",r,d,i),!0}_request(m,t,e){function n(){d.nextTick(()=>{p._update()})}const p=this,r=m.requests.length,i="webSeed"===m.type;if(p.bitfield.get(t))return!1;if(r>=(i?ao(function(r,e,t){return 1+eo(1*r.downloadSpeed()/t)}(m,0,p.pieceLength),p.maxWebConns):g(m,1)))return!1;const o=p.pieces[t];let a=i?o.reserveRemaining():o.reserve();if(-1===a&&e&&p._hotswap(m,t)&&(a=i?o.reserveRemaining():o.reserve()),-1===a)return!1;let _=p._reservations[t];_||(_=p._reservations[t]=[]);let b=_.indexOf(null);-1===b&&(b=_.length),_[b]=m;const y=o.chunkOffset(a),l=i?o.chunkLengthRemaining(a):o.chunkLength(a);return m.request(t,y,l,function d(e,r){if(p.destroyed)return;if(!p.ready)return p.once("ready",()=>{d(e,r)});if(_[b]===m&&(_[b]=null),o!==p.pieces[t])return n();if(e)return p._debug("error getting piece %s (offset: %s length: %s) from %s: %s",t,y,l,`${m.remoteAddress}:${m.remotePort}`,e.message),i?o.cancelRemaining(a):o.cancel(a),void n();if(p._debug("got piece %s (offset: %s length: %s) from %s",t,y,l,`${m.remoteAddress}:${m.remotePort}`),!o.set(a,r,m))return n();const s=o.flush();qo(s,r=>{if(!p.destroyed){if(r===p._hashes[t]){if(!p.pieces[t])return;p._debug("piece verified %s",t),p.pieces[t]=null,p._reservations[t]=null,p.bitfield.set(t,!0),p.store.put(t,s),p.wires.forEach(n=>{n.have(t)}),p._checkDone()&&!p.destroyed&&p.discovery.complete()}else p.pieces[t]=new md(o.length),p.emit("warning",new Error(`Piece ${t} failed verification`));n()}})}),!0}_checkDone(){if(this.destroyed)return;this.files.forEach(n=>{if(!n.done){for(let e=n._startPiece;e<=n._endPiece;++e)if(!this.bitfield.get(e))return;n.done=!0,n.emit("done"),this._debug(`file done: ${n.name}`)}});let r=!0;for(let e=0;e<this._selections.length;e++){const o=this._selections[e];for(let e=o.from;e<=o.to;e++)if(!this.bitfield.get(e)){r=!1;break}if(!r)break}return!this.done&&r&&(this.done=!0,this._debug(`torrent done: ${this.infoHash}`),this.emit("done")),this._gcSelections(),r}load(o,d){if(this.destroyed)throw new Error("torrent is destroyed");if(!this.ready)return this.once("ready",()=>{this.load(o,d)});Array.isArray(o)||(o=[o]),d||(d=l);const a=new hd(o),n=new sd(this.store,this.pieceLength);Yr(a,n,t=>t?d(t):void(this._markAllVerified(),this._checkDone(),d(null)))}createServer(t){throw new Error("node.js-only method")}pause(){this.destroyed||(this._debug("pause"),this.paused=!0)}resume(){this.destroyed||(this._debug("resume"),this.paused=!1,this._drain())}_debug(){const n=[].slice.call(arguments);n[0]=`[${this.client._debugId}] [${this._debugId}] ${n[0]}`,t(...n)}_drain(){if(this._debug("_drain numConns %s maxConns %s",this._numConns,this.client.maxConns),"function"!=typeof oe.connect||this.destroyed||this.paused||this._numConns>=this.client.maxConns)return;this._debug("drain (%s queued, %s/%s peers)",this._numQueued,this.numPeers,this.client.maxConns);const o=this._queue.shift();if(o){this._debug("tcp connect attempt to %s",o.addr);const e=mr(o.addr),t={host:e[0],port:e[1]},n=o.conn=oe.connect(t);n.once("connect",()=>{o.onConnect()}),n.once("error",e=>{o.destroy(e)}),o.startConnectTimeout(),n.on("close",()=>{if(!this.destroyed){if(o.retries>=r.length)return void this._debug("conn %s closed: will not re-add (max %s attempts)",o.addr,r.length);const e=r[o.retries];this._debug("conn %s closed: will re-add to queue in %sms (attempt %s)",o.addr,e,o.retries+1);const t=setTimeout(()=>{const e=this._addPeer(o.addr);e&&(e.retries=o.retries+1)},e);t.unref&&t.unref()}})}}_validAddr(o){let e;try{e=mr(o)}catch(e){return!1}const d=e[0],n=e[1];return 0<n&&65535>n&&("127.0.0.1"!==d||n!==this.client.torrentPort)}}}).call(this,pe,"undefined"==typeof global?"undefined"==typeof self?"undefined"==typeof window?{}:window:self:global);var ra={};return function(d,e,t){const{EventEmitter:n}=m,r=jo("webtorrent"),l="0.107.0".replace(/\d*./g,t=>`0${t%100}`.slice(-2)).slice(0,4);class o extends n{constructor(n={}){super(),this.peerId="string"==typeof n.peerId?n.peerId:t.isBuffer(n.peerId)?n.peerId.toString("hex"):t.from(`-WW${l}-`+ur(9).toString("base64")).toString("hex"),this.peerIdBuffer=t.from(this.peerId,"hex"),this.nodeId="string"==typeof n.nodeId?n.nodeId:t.isBuffer(n.nodeId)?n.nodeId.toString("hex"):ur(20).toString("hex"),this.nodeIdBuffer=t.from(this.nodeId,"hex"),this._debugId=this.peerId.toString("hex").substring(0,7),this.destroyed=!1,this.listening=!1,this.torrentPort=n.torrentPort||0,this.dhtPort=n.dhtPort||0,this.tracker=void 0===n.tracker?{}:n.tracker,this.torrents=[],this.maxConns=+n.maxConns||55,this._debug("new webtorrent (peerId %s, nodeId %s, port %s)",this.peerId,this.nodeId,this.torrentPort),this.tracker&&("object"!=typeof this.tracker&&(this.tracker={}),n.rtcConfig&&(console.warn("WebTorrent: opts.rtcConfig is deprecated. Use opts.tracker.rtcConfig instead"),this.tracker.rtcConfig=n.rtcConfig),n.wrtc&&(console.warn("WebTorrent: opts.wrtc is deprecated. Use opts.tracker.wrtc instead"),this.tracker.wrtc=n.wrtc),e.WRTC&&!this.tracker.wrtc&&(this.tracker.wrtc=e.WRTC)),d.nextTick(()=>{this._onListening()}),this._downloadSpeed=gr(),this._uploadSpeed=gr(),!1!==n.dht&&!1?(this.dht=new oe(Object.assign({},{nodeId:this.nodeId},n.dht)),this.dht.once("error",t=>{this._destroy(t)}),this.dht.once("listening",()=>{const t=this.dht.address();t&&(this.dhtPort=t.port)}),this.dht.setMaxListeners(0),this.dht.listen(this.dhtPort)):this.dht=!1,this.enableWebSeeds=!1!==n.webSeeds;const r=()=>{this.destroyed||(this.ready=!0,this.emit("ready"))};d.nextTick(r)}get downloadSpeed(){return this._downloadSpeed()}get uploadSpeed(){return this._uploadSpeed()}get progress(){const t=this.torrents.filter(t=>1!==t.progress);return t.reduce((n,e)=>n+e.downloaded,0)/(t.reduce((n,e)=>n+(e.length||0),0)||1)}get ratio(){return this.torrents.reduce((n,e)=>n+e.uploaded,0)/(this.torrents.reduce((n,e)=>n+e.received,0)||1)}get(t){if(!(t instanceof na)){let n;try{n=Zo(t)}catch(e){}if(!n)return null;if(!n.infoHash)throw new Error("Invalid torrent identifier");for(const t of this.torrents)if(t.infoHash===n.infoHash)return t}else if(this.torrents.includes(t))return t;return null}download(r,e,t){return console.warn("WebTorrent: client.download() is deprecated. Use client.add() instead"),this.add(r,e,t)}add(o,e={},d){if(this.destroyed)throw new Error("client is destroyed");"function"==typeof e&&([e,d]=[{},e]);const a=()=>{if(!this.destroyed)for(const t of this.torrents)if(t.infoHash===i.infoHash&&t!==i)return void i._destroy(new Error(`Cannot add duplicate torrent ${i.infoHash}`))},r=()=>{this.destroyed||("function"==typeof d&&d(i),this.emit("torrent",i))};this._debug("add"),e=e?Object.assign({},e):{};const i=new na(o,this,e);return this.torrents.push(i),i.once("_infoHash",a),i.once("ready",r),i.once("close",function t(){i.removeListener("_infoHash",a),i.removeListener("ready",r),i.removeListener("close",t)}),i}seed(o,d,c){if(this.destroyed)throw new Error("client is destroyed");"function"==typeof d&&([d,c]=[{},d]),this._debug("seed"),(d=d?Object.assign({},d):{}).skipVerify=!0;const u="string"==typeof o;u&&(d.path=pt.dirname(o)),d.createdBy||(d.createdBy=`WebTorrent/${l}`);const r=t=>{this._debug("on seed"),"function"==typeof c&&c(t),t.emit("seed"),this.emit("seed",t)},i=this.add(null,d,n=>{const e=[e=>u?e():void n.load(s,e)];this.dht&&e.push(e=>{n.once("dhtAnnounce",e)}),Oo(e,e=>{if(!this.destroyed)return e?n._destroy(e):void r(n)})});let s;return"undefined"!=typeof FileList&&o instanceof FileList?o=Array.from(o):Array.isArray(o)||(o=[o]),Oo(o.map(n=>e=>{(function(){return"object"==typeof n&&null!=n&&"function"==typeof n.pipe})()?q(n,e):e(null,n)}),(t,o)=>{if(!this.destroyed)return t?i._destroy(t):void Wo.parseInput(o,d,(t,e)=>{if(!this.destroyed){if(t)return i._destroy(t);s=e.map(t=>t.getStream),Wo(o,d,(r,e)=>{if(!this.destroyed){if(r)return i._destroy(r);const t=this.get(e);t?i._destroy(new Error(`Cannot add duplicate torrent ${t.infoHash}`)):i._onTorrentId(e)}})}})}),i}remove(n,e){if(this._debug("remove"),!this.get(n))throw new Error(`No torrent with id ${n}`);this._remove(n,e)}_remove(r,e){const t=this.get(r);t&&(this.torrents.splice(this.torrents.indexOf(t),1),t.destroy(e))}address(){return this.listening?this._tcpPool?this._tcpPool.server.address():{address:"0.0.0.0",family:"IPv4",port:0}:null}destroy(t){if(this.destroyed)throw new Error("client already destroyed");this._destroy(null,t)}_destroy(r,e){this._debug("client destroy"),this.destroyed=!0;const t=this.torrents.map(n=>e=>{n.destroy(e)});this._tcpPool&&t.push(t=>{this._tcpPool.destroy(t)}),this.dht&&t.push(t=>{this.dht.destroy(t)}),Oo(t,e),r&&this.emit("error",r),this.torrents=[],this._tcpPool=null,this.dht=null}_onListening(){if(this._debug("listening"),this.listening=!0,this._tcpPool){const t=this._tcpPool.server.address();t&&(this.torrentPort=t.port)}this.emit("listening")}_debug(){const t=[].slice.call(arguments);t[0]=`[${this._debugId}] ${t[0]}`,r(...t)}}o.WEBRTC_SUPPORT=td.WEBRTC_SUPPORT,o.VERSION="0.107.0",ra=o}.call(this,pe,"undefined"==typeof global?"undefined"==typeof self?"undefined"==typeof window?{}:window:self:global,p({}).Buffer),ra});
\ No newline at end of file