(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.pow,r=Math.floor,o=Math.abs,e=String.fromCharCode,s=Math.ceil,n=Math.max,d=Math.min,i;return function d(c,e,t){function r(s,o){if(!e[s]){if(!c[s]){var i="function"==typeof require&&require;if(!o&&i)return i(s,!0);if(n)return n(s,!0);var a=new Error("Cannot find module '"+s+"'");throw a.code="MODULE_NOT_FOUND",a}var p=e[s]={exports:{}};c[s][0].call(p.exports,function(t){var e=c[s][1][t];return r(e?e:t)},p,p.exports,d,c,e,t)}return e[s].exports}for(var n="function"==typeof require&&require,s=0;s<t.length;s++)r(t[s]);return r}({1:[function(e,t){function n(e,t){s.Readable.call(this,t),this.destroyed=!1,this._torrent=e._torrent;var 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=d(0|1048576/o,2)}t.exports=n;var r=e("debug")("webtorrent:file-stream"),o=e("inherits"),s=e("readable-stream");o(n,s.Readable),n.prototype._read=function(){this._reading||(this._reading=!0,this._notify())},n.prototype._notify=function(){var e=this;if(e._reading&&0!==e._missing){if(!e._torrent.bitfield.get(e._piece))return e._torrent.critical(e._piece,e._piece+e._criticalLength);if(!e._notifying){if(e._notifying=!0,e._torrent.destroyed)return e._destroy(new Error("Torrent removed"));var t=e._piece;e._torrent.store.get(t,function(n,o){return e._notifying=!1,e.destroyed?void 0:n?e._destroy(n):void(r("read %s (length %s) (err %s)",t,o.length,n&&n.message),e._offset&&(o=o.slice(e._offset),e._offset=0),e._missing<o.length&&(o=o.slice(0,e._missing)),e._missing-=o.length,r("pushing buffer of length %s",o.length),e._reading=!1,e.push(o),0===e._missing&&e.push(null))}),e._piece+=1}}},n.prototype.destroy=function(e){this._destroy(null,e)},n.prototype._destroy=function(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())}},{debug:33,inherits:44,"readable-stream":86}],2:[function(e,t){(function(n){function r(e,t){s.call(this),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;var 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"))}t.exports=r;var o=e("end-of-stream"),s=e("events").EventEmitter,i=e("./file-stream"),d=e("inherits"),a=e("path"),c=e("render-media"),p=e("readable-stream"),l=e("stream-to-blob"),u=e("stream-to-blob-url"),f=e("stream-with-known-length-to-buffer");d(r,s),Object.defineProperty(r.prototype,"downloaded",{get:function(){if(!this._torrent.bitfield)return 0;for(var e=0,t=this._startPiece;t<=this._endPiece;++t)if(this._torrent.bitfield.get(t))e+=t===this._endPiece?this._torrent.lastPieceLength:this._torrent.pieceLength;else{var n=this._torrent.pieces[t];e+=n.length-n.missing}return e}}),Object.defineProperty(r.prototype,"progress",{get:function(){return this.length?this.downloaded/this.length:0}}),r.prototype.select=function(e){0===this.length||this._torrent.select(this._startPiece,this._endPiece,e)},r.prototype.deselect=function(){0===this.length||this._torrent.deselect(this._startPiece,this._endPiece,!1)},r.prototype.createReadStream=function(e){var t=this;if(0===this.length){var r=new p.PassThrough;return n.nextTick(function(){r.end()}),r}var s=new i(t,e);return t._torrent.select(s._startPiece,s._endPiece,!0,function(){s._notify()}),o(s,function(){t._destroyed||!t._torrent.destroyed&&t._torrent.deselect(s._startPiece,s._endPiece,!0)}),s},r.prototype.getBuffer=function(e){f(this.createReadStream(),this.length,e)},r.prototype.getBlob=function(e){if("undefined"==typeof window)throw new Error("browser-only method");l(this.createReadStream(),this._getMimeType(),e)},r.prototype.getBlobURL=function(e){if("undefined"==typeof window)throw new Error("browser-only method");u(this.createReadStream(),this._getMimeType(),e)},r.prototype.appendTo=function(e,t,n){if("undefined"==typeof window)throw new Error("browser-only method");c.append(this,e,t,n)},r.prototype.renderTo=function(e,t,n){if("undefined"==typeof window)throw new Error("browser-only method");c.render(this,e,t,n)},r.prototype._getMimeType=function(){return c.mime[a.extname(this.name).toLowerCase()]},r.prototype._destroy=function(){this._destroyed=!0,this._torrent=null}}).call(this,e("_process"))},{"./file-stream":1,_process:69,"end-of-stream":36,events:37,inherits:44,path:66,"readable-stream":86,"render-media":87,"stream-to-blob":110,"stream-to-blob-url":109,"stream-with-known-length-to-buffer":111}],3:[function(e,t,n){function r(e,t){var n=this;n.id=e,n.type=t,i("new Peer %s",e),n.addr=null,n.conn=null,n.swarm=null,n.wire=null,n.connected=!1,n.destroyed=!1,n.timeout=null,n.retries=0,n.sentHandshake=!1}function o(){}var s=e("unordered-array-remove"),i=e("debug")("webtorrent:peer"),d=e("bittorrent-protocol"),a=e("./webconn");n.createWebRTCPeer=function(e,t){var n=new r(e.id,"webrtc");return n.conn=e,n.swarm=t,n.conn.connected?n.onConnect():(n.conn.once("connect",function(){n.onConnect()}),n.conn.once("error",function(e){n.destroy(e)}),n.startConnectTimeout()),n},n.createTCPIncomingPeer=function(e){var t=e.remoteAddress+":"+e.remotePort,n=new r(t,"tcpIncoming");return n.conn=e,n.addr=t,n.onConnect(),n},n.createTCPOutgoingPeer=function(e,t){var n=new r(e,"tcpOutgoing");return n.addr=e,n.swarm=t,n},n.createWebSeedPeer=function(e,t){var n=new r(e,"webSeed");return n.swarm=t,n.conn=new a(e,t),n.onConnect(),n},r.prototype.onConnect=function(){var e=this;if(!e.destroyed){e.connected=!0,i("Peer %s connected",e.id),clearTimeout(e.connectTimeout);var t=e.conn;t.once("end",function(){e.destroy()}),t.once("close",function(){e.destroy()}),t.once("finish",function(){e.destroy()}),t.once("error",function(t){e.destroy(t)});var n=e.wire=new d;n.type=e.type,n.once("end",function(){e.destroy()}),n.once("close",function(){e.destroy()}),n.once("finish",function(){e.destroy()}),n.once("error",function(t){e.destroy(t)}),n.once("handshake",function(t,n){e.onHandshake(t,n)}),e.startHandshakeTimeout(),t.pipe(n).pipe(t),e.swarm&&!e.sentHandshake&&e.handshake()}},r.prototype.onHandshake=function(e,t){var n=this;if(n.swarm&&!n.destroyed){if(n.swarm.destroyed)return n.destroy(new Error("swarm already destroyed"));if(e!==n.swarm.infoHash)return n.destroy(new Error("unexpected handshake info hash for this swarm"));if(t===n.swarm.peerId)return n.destroy(new Error("refusing to connect to ourselves"));i("Peer %s got handshake %s",n.id,e),clearTimeout(n.handshakeTimeout),n.retries=0;var r=n.addr;!r&&n.conn.remoteAddress&&(r=n.conn.remoteAddress+":"+n.conn.remotePort),n.swarm._onWire(n.wire,r),n.swarm&&!n.swarm.destroyed&&(n.sentHandshake||n.handshake())}},r.prototype.handshake=function(){var e=this,t={dht:!e.swarm.private&&!!e.swarm.client.dht};e.wire.handshake(e.swarm.infoHash,e.swarm.client.peerId,t),e.sentHandshake=!0},r.prototype.startConnectTimeout=function(){var e=this;clearTimeout(e.connectTimeout),e.connectTimeout=setTimeout(function(){e.destroy(new Error("connect timeout"))},"webrtc"===e.type?25000:5e3),e.connectTimeout.unref&&e.connectTimeout.unref()},r.prototype.startHandshakeTimeout=function(){var e=this;clearTimeout(e.handshakeTimeout),e.handshakeTimeout=setTimeout(function(){e.destroy(new Error("handshake timeout"))},25000),e.handshakeTimeout.unref&&e.handshakeTimeout.unref()},r.prototype.destroy=function(e){var t=this;if(!t.destroyed){t.destroyed=!0,t.connected=!1,i("destroy %s (error: %s)",t.id,e&&(e.message||e)),clearTimeout(t.connectTimeout),clearTimeout(t.handshakeTimeout);var n=t.swarm,r=t.conn,d=t.wire;t.swarm=null,t.conn=null,t.wire=null,n&&d&&s(n.wires,n.wires.indexOf(d)),r&&(r.on("error",o),r.destroy()),d&&d.destroy(),n&&n.removePeer(t.id)}}},{"./webconn":6,"bittorrent-protocol":14,debug:33,"unordered-array-remove":123}],4:[function(e,t){function n(e){var t=this;t._torrent=e,t._numPieces=e.pieces.length,t._pieces=[],t._onWire=function(e){t.recalculate(),t._initWire(e)},t._onWireHave=function(e){t._pieces[e]+=1},t._onWireBitfield=function(){t.recalculate()},t._torrent.wires.forEach(function(e){t._initWire(e)}),t._torrent.on("wire",t._onWire),t.recalculate()}function r(){return!0}t.exports=n,n.prototype.getRarestPiece=function(e){e||(e=r);for(var t=[],n=Infinity,o=0;o<this._numPieces;++o)if(e(o)){var s=this._pieces[o];s===n?t.push(o):s<n&&(t=[o],n=s)}return 0<t.length?t[0|Math.random()*t.length]:-1},n.prototype.destroy=function(){var e=this;e._torrent.removeListener("wire",e._onWire),e._torrent.wires.forEach(function(t){e._cleanupWireEvents(t)}),e._torrent=null,e._pieces=null,e._onWire=null,e._onWireHave=null,e._onWireBitfield=null},n.prototype._initWire=function(e){var t=this;e._onClose=function(){t._cleanupWireEvents(e);for(var n=0;n<this._numPieces;++n)t._pieces[n]-=e.peerPieces.get(n)},e.on("have",t._onWireHave),e.on("bitfield",t._onWireBitfield),e.once("close",e._onClose)},n.prototype.recalculate=function(){var e;for(e=0;e<this._numPieces;++e)this._pieces[e]=0;var t=this._torrent.wires.length;for(e=0;e<t;++e)for(var n=this._torrent.wires[e],r=0;r<this._numPieces;++r)this._pieces[r]+=n.peerPieces.get(r)},n.prototype._cleanupWireEvents=function(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(r,o){function i(e,t,n){_.call(this),this._debugId="unknown infohash",this.client=t,this.announce=n.announce,this.urlList=n.urlList,this.path=n.path,this._store=n.store||k,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=H(),this._uploadSpeed=H(),this._servers=[],this._xsRequests=[],this._fileModtimes=n.fileModtimes,null!==e&&this._onTorrentId(e),this._debug("new torrent")}function a(e,t){return 2+s(t*e.downloadSpeed()/U.BLOCK_LENGTH)}function c(e,t,n){return 1+s(t*e.downloadSpeed()/n)}function p(e){return 0|Math.random()*e}function l(){}t.exports=i;var u=e("addr-to-ip-port"),f=e("bitfield"),h=e("chunk-store-stream/write"),m=e("debug")("webtorrent:torrent"),g=e("torrent-discovery"),_=e("events").EventEmitter,y=e("xtend"),b=e("xtend/mutable"),w=e("fs"),k=e("fs-chunk-store"),x=e("simple-get"),v=e("immediate-chunk-store"),S=e("inherits"),C=e("multistream"),E=e("net"),B=e("os"),I=e("run-parallel"),L=e("run-parallel-limit"),T=e("parse-torrent"),A=e("path"),U=e("torrent-piece"),R=e("pump"),P=e("random-iterate"),O=e("simple-sha1"),H=e("speedometer"),M=e("uniq"),q=e("ut_metadata"),j=e("ut_pex"),N=e("./file"),F=e("./peer"),D=e("./rarity-map"),W=e("./server"),z=5e3,V=3*U.BLOCK_LENGTH,G=1,K=2,X=[1000,5000,15000],Y=e("../package.json").version,$="WebTorrent/"+Y+" (https://webtorrent.io)",Q;try{Q=A.join(w.statSync("/tmp")&&"/tmp","webtorrent")}catch(e){Q=A.join("function"==typeof B.tmpdir?B.tmpdir():"/","webtorrent")}S(i,_),Object.defineProperty(i.prototype,"timeRemaining",{get:function(){return this.done?0:0===this.downloadSpeed?Infinity:1e3*((this.length-this.downloaded)/this.downloadSpeed)}}),Object.defineProperty(i.prototype,"downloaded",{get:function(){if(!this.bitfield)return 0;for(var e=0,t=0,n=this.pieces.length;t<n;++t)if(this.bitfield.get(t))e+=t===n-1?this.lastPieceLength:this.pieceLength;else{var r=this.pieces[t];e+=r.length-r.missing}return e}}),Object.defineProperty(i.prototype,"downloadSpeed",{get:function(){return this._downloadSpeed()}}),Object.defineProperty(i.prototype,"uploadSpeed",{get:function(){return this._uploadSpeed()}}),Object.defineProperty(i.prototype,"progress",{get:function(){return this.length?this.downloaded/this.length:0}}),Object.defineProperty(i.prototype,"ratio",{get:function(){return this.uploaded/(this.received||1)}}),Object.defineProperty(i.prototype,"numPeers",{get:function(){return this.wires.length}}),Object.defineProperty(i.prototype,"torrentFileBlobURL",{get:function(){if("undefined"==typeof window)throw new Error("browser-only property");return this.torrentFile?URL.createObjectURL(new Blob([this.torrentFile],{type:"application/x-bittorrent"})):null}}),Object.defineProperty(i.prototype,"_numQueued",{get:function(){return this._queue.length+(this._peersLength-this._numConns)}}),Object.defineProperty(i.prototype,"_numConns",{get:function(){var e=this,t=0;for(var n in e._peers)e._peers[n].connected&&(t+=1);return t}}),Object.defineProperty(i.prototype,"swarm",{get:function(){return console.warn("WebTorrent: `torrent.swarm` is deprecated. Use `torrent` directly instead."),this}}),i.prototype._onTorrentId=function(e){var t=this;if(!t.destroyed){var n;try{n=T(e)}catch(e){}n?(t.infoHash=n.infoHash,t._debugId=n.infoHash.toString("hex").substring(0,7),r.nextTick(function(){t.destroyed||t._onParsedTorrent(n)})):T.remote(e,function(e,n){return t.destroyed?void 0:e?t._destroy(e):void t._onParsedTorrent(n)})}},i.prototype._onParsedTorrent=function(e){var t=this;if(!t.destroyed){if(t._processParsedTorrent(e),!t.infoHash)return t._destroy(new Error("Malformed torrent data: No info hash"));(t.path||(t.path=A.join(Q,t.infoHash)),t._rechokeIntervalId=setInterval(function(){t._rechoke()},1e4),t._rechokeIntervalId.unref&&t._rechokeIntervalId.unref(),t.emit("_infoHash",t.infoHash),!t.destroyed)&&(t.emit("infoHash",t.infoHash),t.destroyed||(t.client.listening?t._onListening():t.client.once("listening",function(){t._onListening()})))}},i.prototype._processParsedTorrent=function(e){this._debugId=e.infoHash.toString("hex").substring(0,7),this.announce&&(e.announce=e.announce.concat(this.announce)),this.client.tracker&&o.WEBTORRENT_ANNOUNCE&&!this.private&&(e.announce=e.announce.concat(o.WEBTORRENT_ANNOUNCE)),this.urlList&&(e.urlList=e.urlList.concat(this.urlList)),M(e.announce),M(e.urlList),b(this,e),this.magnetURI=T.toMagnetURI(e),this.torrentFile=T.toTorrentFile(e)},i.prototype._onListening=function(){function e(e){i._destroy(e)}function t(e){"string"==typeof e&&i.done||i.addPeer(e)}function r(){i.emit("trackerAnnounce"),0===i.numPeers&&i.emit("noPeers","tracker")}function o(){i.emit("dhtAnnounce"),0===i.numPeers&&i.emit("noPeers","dht")}function s(e){i.emit("warning",e)}var i=this;if(!(i.discovery||i.destroyed)){var d=i.client.tracker;d&&(d=y(i.client.tracker,{getAnnounceOpts:function(){var e={uploaded:i.uploaded,downloaded:i.downloaded,left:n(i.length-i.downloaded,0)};return i.client.tracker.getAnnounceOpts&&b(e,i.client.tracker.getAnnounceOpts()),i._getAnnounceOpts&&b(e,i._getAnnounceOpts()),e}})),i.discovery=new g({infoHash:i.infoHash,announce:i.announce,peerId:i.client.peerId,dht:!i.private&&i.client.dht,tracker:d,port:i.client.torrentPort,userAgent:$}),i.discovery.on("error",e),i.discovery.on("peer",t),i.discovery.on("trackerAnnounce",r),i.discovery.on("dhtAnnounce",o),i.discovery.on("warning",s),i.info?i._onMetadata(i):i.xs&&i._getMetadataFromServer()}},i.prototype._getMetadataFromServer=function(){function e(e,n){function r(r,o,s){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);var i;try{i=T(s)}catch(e){}return i?i.infoHash===t.infoHash?void(t._onMetadata(i),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);var o;try{o=x.concat({url:e,method:"GET",headers:{"user-agent":$}},r)}catch(r){return t.emit("warning",new Error("skipping invalid url xs param: "+e)),n(null)}t._xsRequests.push(o)}var t=this,n=Array.isArray(t.xs)?t.xs:[t.xs],r=n.map(function(t){return function(n){e(t,n)}});I(r)},i.prototype._onMetadata=function(e){var t=this;if(!(t.metadata||t.destroyed)){t._debug("got metadata"),t._xsRequests.forEach(function(e){e.abort()}),t._xsRequests=[];var n;if(e&&e.infoHash)n=e;else try{n=T(e)}catch(e){return t._destroy(e)}t._processParsedTorrent(n),t.metadata=t.torrentFile,t.client.enableWebSeeds&&t.urlList.forEach(function(e){t.addWebSeed(e)}),0!==t.pieces.length&&t.select(0,t.pieces.length-1,!1),t._rarityMap=new D(t),t.store=new v(new t._store(t.pieceLength,{torrent:{infoHash:t.infoHash},files:t.files.map(function(e){return{path:A.join(t.path,e.path),length:e.length,offset:e.offset}}),length:t.length})),t.files=t.files.map(function(e){return new N(t,e)}),t._hashes=t.pieces,t.pieces=t.pieces.map(function(e,n){var r=n===t.pieces.length-1?t.lastPieceLength:t.pieceLength;return new U(r)}),t._reservations=t.pieces.map(function(){return[]}),t.bitfield=new f(t.pieces.length),t.wires.forEach(function(e){e.ut_metadata&&e.ut_metadata.setMetadata(t.metadata),t._onWireWithMetadata(e)}),t._debug("verifying existing torrent data"),t._fileModtimes&&t._store===k?t.getFileModtimes(function(e,n){if(e)return t._destroy(e);var r=t.files.map(function(e,r){return n[r]===t._fileModtimes[r]}).every(function(e){return e});if(r){for(var o=0;o<t.pieces.length;o++)t._markVerified(o);t._onStore()}else t._verifyPieces()}):t._verifyPieces(),t.emit("metadata")}},i.prototype.getFileModtimes=function(e){var t=this,n=[];L(t.files.map(function(e,r){return function(o){w.stat(A.join(t.path,e.path),function(e,t){return e&&"ENOENT"!==e.code?o(e):void(n[r]=t&&t.mtime.getTime(),o(null))})}}),K,function(r){t._debug("done getting file modtimes"),e(r,n)})},i.prototype._verifyPieces=function(){var e=this;L(e.pieces.map(function(t,n){return function(t){return e.destroyed?t(new Error("torrent is destroyed")):void e.store.get(n,function(o,s){return e.destroyed?t(new Error("torrent is destroyed")):o?r.nextTick(t,null):void O(s,function(r){if(e.destroyed)return t(new Error("torrent is destroyed"));if(r===e._hashes[n]){if(!e.pieces[n])return;e._debug("piece verified %s",n),e._markVerified(n)}else e._debug("piece invalid %s",n);t(null)})})}}),K,function(t){return t?e._destroy(t):void(e._debug("done verifying"),e._onStore())})},i.prototype._markVerified=function(e){this.pieces[e]=null,this._reservations[e]=null,this.bitfield.set(e,!0)},i.prototype._onStore=function(){var e=this;e.destroyed||(e._debug("on store"),e.ready=!0,e.emit("ready"),e._checkDone(),e._updateSelections())},i.prototype.destroy=function(e){var t=this;t._destroy(null,e)},i.prototype._destroy=function(e,t){var n=this;if(!n.destroyed){for(var r in n.destroyed=!0,n._debug("destroy"),n.client._remove(n),clearInterval(n._rechokeIntervalId),n._xsRequests.forEach(function(e){e.abort()}),n._rarityMap&&n._rarityMap.destroy(),n._peers)n.removePeer(r);n.files.forEach(function(e){e instanceof N&&e._destroy()});var o=n._servers.map(function(e){return function(t){e.destroy(t)}});n.discovery&&o.push(function(e){n.discovery.destroy(e)}),n.store&&o.push(function(e){n.store.close(e)}),I(o,t),e&&(0===n.listenerCount("error")?n.client.emit("error",e):n.emit("error",e)),n.emit("close"),n.client=null,n.files=[],n.discovery=null,n.store=null,n._rarityMap=null,n._peers=null,n._servers=null,n._xsRequests=null}},i.prototype.addPeer=function(e){var t=this;if(t.destroyed)throw new Error("torrent is destroyed");if(!t.infoHash)throw new Error("addPeer() must not be called before the `infoHash` event");if(t.client.blocked){var n;if("string"==typeof e){var r;try{r=u(e)}catch(n){return t._debug("ignoring peer: invalid %s",e),t.emit("invalidPeer",e),!1}n=r[0]}else"string"==typeof e.remoteAddress&&(n=e.remoteAddress);if(n&&t.client.blocked.contains(n))return t._debug("ignoring peer: blocked %s",e),"string"!=typeof e&&e.destroy(),t.emit("blockedPeer",e),!1}var o=!!t._addPeer(e);return o?t.emit("peer",e):t.emit("invalidPeer",e),o},i.prototype._addPeer=function(e){var t=this;if(t.destroyed)return"string"!=typeof e&&e.destroy(),null;if("string"==typeof e&&!t._validAddr(e))return t._debug("ignoring peer: invalid %s",e),null;var n=e&&e.id||e;if(t._peers[n])return t._debug("ignoring peer: duplicate (%s)",n),"string"!=typeof e&&e.destroy(),null;if(t.paused)return t._debug("ignoring peer: torrent is paused"),"string"!=typeof e&&e.destroy(),null;t._debug("add peer %s",n);var r;return r="string"==typeof e?F.createTCPOutgoingPeer(e,t):F.createWebRTCPeer(e,t),t._peers[r.id]=r,t._peersLength+=1,"string"==typeof e&&(t._queue.push(r),t._drain()),r},i.prototype.addWebSeed=function(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);var t=F.createWebSeedPeer(e,this);this._peers[t.id]=t,this._peersLength+=1,this.emit("peer",e)},i.prototype._addIncomingPeer=function(e){var t=this;return t.destroyed?e.destroy(new Error("torrent is destroyed")):t.paused?e.destroy(new Error("torrent is paused")):void(this._debug("add incoming peer %s",e.id),t._peers[e.id]=e,t._peersLength+=1)},i.prototype.removePeer=function(e){var t=this,n=e&&e.id||e;e=t._peers[n];e&&(this._debug("removePeer %s",n),delete t._peers[n],t._peersLength-=1,e.destroy(),t._drain())},i.prototype.select=function(e,t,n,r){var o=this;if(o.destroyed)throw new Error("torrent is destroyed");if(0>e||t<e||o.pieces.length<=t)throw new Error("invalid selection ",e,":",t);n=+n||0,o._debug("select %s-%s (priority %s)",e,t,n),o._selections.push({from:e,to:t,offset:0,priority:n,notify:r||l}),o._selections.sort(function(e,t){return t.priority-e.priority}),o._updateSelections()},i.prototype.deselect=function(e,t,n){var r=this;if(r.destroyed)throw new Error("torrent is destroyed");n=+n||0,r._debug("deselect %s-%s (priority %s)",e,t,n);for(var o=0,i;o<r._selections.length;++o)if(i=r._selections[o],i.from===e&&i.to===t&&i.priority===n){r._selections.splice(o,1);break}r._updateSelections()},i.prototype.critical=function(e,t){var n=this;if(n.destroyed)throw new Error("torrent is destroyed");n._debug("critical %s-%s",e,t);for(var r=e;r<=t;++r)n._critical[r]=!0;n._updateSelections()},i.prototype._onWire=function(e,t){var n=this;if(n._debug("got wire %s (%s)",e._debugId,t||"Unknown"),e.on("download",function(e){n.destroyed||(n.received+=e,n._downloadSpeed(e),n.client._downloadSpeed(e),n.emit("download",e),n.client.emit("download",e))}),e.on("upload",function(e){n.destroyed||(n.uploaded+=e,n._uploadSpeed(e),n.client._uploadSpeed(e),n.emit("upload",e),n.client.emit("upload",e))}),n.wires.push(e),t){var o=u(t);e.remoteAddress=o[0],e.remotePort=o[1]}n.client.dht&&n.client.dht.listening&&e.on("port",function(r){return n.destroyed||n.client.dht.destroyed?void 0:e.remoteAddress?0===r||65536<r?n._debug("ignoring invalid PORT from peer"):void(n._debug("port: %s (from %s)",r,t),n.client.dht.addNode({host:e.remoteAddress,port:r})):n._debug("ignoring PORT from peer with no address")}),e.on("timeout",function(){n._debug("wire timeout (%s)",t),e.destroy()}),e.setTimeout(3e4,!0),e.setKeepAlive(!0),e.use(q(n.metadata)),e.ut_metadata.on("warning",function(e){n._debug("ut_metadata warning: %s",e.message)}),n.metadata||(e.ut_metadata.on("metadata",function(e){n._debug("got metadata via ut_metadata"),n._onMetadata(e)}),e.ut_metadata.fetch()),"function"!=typeof j||n.private||(e.use(j()),e.ut_pex.on("peer",function(e){n.done||(n._debug("ut_pex: got peer: %s (from %s)",e,t),n.addPeer(e))}),e.ut_pex.on("dropped",function(e){var r=n._peers[e];r&&!r.connected&&(n._debug("ut_pex: dropped peer: %s (from %s)",e,t),n.removePeer(e))}),e.once("close",function(){e.ut_pex.reset()})),n.emit("wire",e,t),n.metadata&&r.nextTick(function(){n._onWireWithMetadata(e)})},i.prototype._onWireWithMetadata=function(e){function t(){r.destroyed||e.destroyed||(r._numQueued>2*(r._numConns-r.numPeers)&&e.amInterested?e.destroy():(o=setTimeout(t,z),o.unref&&o.unref()))}function n(){if(e.peerPieces.buffer.length===r.bitfield.buffer.length){for(s=0;s<r.pieces.length;++s)if(!e.peerPieces.get(s))return;e.isSeeder=!0,e.choke()}}var r=this,o=null,s;e.on("bitfield",function(){n(),r._update()}),e.on("have",function(){n(),r._update()}),e.once("interested",function(){e.unchoke()}),e.once("close",function(){clearTimeout(o)}),e.on("choke",function(){clearTimeout(o),o=setTimeout(t,z),o.unref&&o.unref()}),e.on("unchoke",function(){clearTimeout(o),r._update()}),e.on("request",function(t,n,o,s){return o>131072?e.destroy():void(r.pieces[t]||r.store.get(t,{offset:n,length:o},s))}),e.bitfield(r.bitfield),e.interested(),e.peerExtensions.dht&&r.client.dht&&r.client.dht.listening&&e.port(r.client.dht.address().port),"webSeed"!==e.type&&(o=setTimeout(t,z),o.unref&&o.unref()),e.isSeeder=!1,n()},i.prototype._updateSelections=function(){var e=this;!e.ready||e.destroyed||(r.nextTick(function(){e._gcSelections()}),e._updateInterest(),e._update())},i.prototype._gcSelections=function(){for(var e=this,t=0;t<e._selections.length;++t){for(var n=e._selections[t],r=n.offset;e.bitfield.get(n.from+n.offset)&&n.from+n.offset<n.to;)n.offset+=1;r!==n.offset&&n.notify(),n.to===n.from+n.offset&&e.bitfield.get(n.from+n.offset)&&(e._selections.splice(t,1),t-=1,n.notify(),e._updateInterest())}e._selections.length||e.emit("idle")},i.prototype._updateInterest=function(){var e=this,t=e._amInterested;e._amInterested=!!e._selections.length,e.wires.forEach(function(t){e._amInterested?t.interested():t.uninterested()});t===e._amInterested||(e._amInterested?e.emit("interested"):e.emit("uninterested"))},i.prototype._update=function(){var e=this;if(!e.destroyed)for(var t=P(e.wires),n;n=t();)e._updateWire(n)},i.prototype._updateWire=function(e){function t(t,n,r,o){return function(s){return s>=t&&s<=n&&!(s in r)&&e.peerPieces.get(s)&&(!o||o(s))}}function r(){if(!e.requests.length)for(var n=d._selections.length;n--;){var r=d._selections[n],o;if("rarest"===d.strategy)for(var s=r.from+r.offset,i=r.to,a={},c=0,p=t(s,i,a);c<i-s+1&&(o=d._rarityMap.getRarestPiece(p),!(0>o));){if(d._request(e,o,!1))return;a[o]=!0,c+=1}else for(o=r.to;o>=r.from+r.offset;--o)if(e.peerPieces.get(o)&&d._request(e,o,!1))return}}function o(){var t=e.downloadSpeed()||1;if(t>V)return function(){return!0};var r=n(1,e.requests.length)*U.BLOCK_LENGTH/t,o=10,s=0;return function(e){if(!o||d.bitfield.get(e))return!0;for(var n=d.pieces[e].missing;s<d.wires.length;s++){var i=d.wires[s],a=i.downloadSpeed();if(!(a<V)&&!(a<=t)&&i.peerPieces.get(e)&&!(0<(n-=a*r)))return o--,!1}return!0}}function s(e){for(var t=e,n=e;n<d._selections.length&&d._selections[n].priority;n++)t=n;var r=d._selections[e];d._selections[e]=d._selections[t],d._selections[t]=r}function i(n){if(e.requests.length>=p)return!0;for(var r=o(),a=0;a<d._selections.length;a++){var i=d._selections[a],c;if("rarest"===d.strategy)for(var l=i.from+i.offset,u=i.to,f={},h=0,m=t(l,u,f,r);h<u-l+1&&(c=d._rarityMap.getRarestPiece(m),!(0>c));){for(;d._request(e,c,d._critical[c]||n););if(e.requests.length<p){f[c]=!0,h++;continue}return i.priority&&s(a),!0}else for(c=i.from+i.offset;c<=i.to;c++)if(e.peerPieces.get(c)&&r(c)){for(;d._request(e,c,d._critical[c]||n););if(!(e.requests.length<p))return i.priority&&s(a),!0}}return!1}var d=this;if(!e.peerChoking){if(!e.downloaded)return r();var c=a(e,0.5);if(!(e.requests.length>=c)){var p=a(e,G);i(!1)||i(!0)}}},i.prototype._rechoke=function(){function e(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}var t=this;if(t.ready){0<t._rechokeOptimisticTime?t._rechokeOptimisticTime-=1:t._rechokeOptimisticWire=null;var n=[];t.wires.forEach(function(e){e.isSeeder||e===t._rechokeOptimisticWire||n.push({wire:e,downloadSpeed:e.downloadSpeed(),uploadSpeed:e.uploadSpeed(),salt:Math.random(),isChoked:!0})}),n.sort(e);for(var r=0,o=0;o<n.length&&r<t._rechokeNumSlots;++o)n[o].isChoked=!1,n[o].wire.peerInterested&&(r+=1);if(!t._rechokeOptimisticWire&&o<n.length&&t._rechokeNumSlots){var s=n.slice(o).filter(function(e){return e.wire.peerInterested}),i=s[p(s.length)];i&&(i.isChoked=!1,t._rechokeOptimisticWire=i.wire,t._rechokeOptimisticTime=2)}n.forEach(function(e){e.wire.amChoking!==e.isChoked&&(e.isChoked?e.wire.choke():e.wire.unchoke())})}},i.prototype._hotswap=function(e,t){var n=this,o=e.downloadSpeed();if(o<U.BLOCK_LENGTH)return!1;if(!n._reservations[t])return!1;var s=n._reservations[t];if(!s)return!1;var d=Infinity,a,c;for(c=0;c<s.length;c++){var i=s[c];if(i&&i!==e){var p=i.downloadSpeed();p>=V||2*p>o||p>d||(a=i,d=p)}}if(!a)return!1;for(c=0;c<s.length;c++)s[c]===a&&(s[c]=null);for(c=0;c<a.requests.length;c++){var l=a.requests[c];l.piece===t&&n.pieces[t].cancel(0|l.offset/U.BLOCK_LENGTH)}return n.emit("hotswap",a,e,t),!0},i.prototype._request=function(e,t,n){function o(){r.nextTick(function(){s._update()})}var s=this,p=e.requests.length,l="webSeed"===e.type;if(s.bitfield.get(t))return!1;var u=l?d(c(e,G,s.pieceLength),s.maxWebConns):a(e,G);if(p>=u)return!1;var f=s.pieces[t],h=l?f.reserveRemaining():f.reserve();if(-1===h&&n&&s._hotswap(e,t)&&(h=l?f.reserveRemaining():f.reserve()),-1===h)return!1;var m=s._reservations[t];m||(m=s._reservations[t]=[]);var g=m.indexOf(null);-1===g&&(g=m.length),m[g]=e;var i=f.chunkOffset(h),_=l?f.chunkLengthRemaining(h):f.chunkLength(h);return e.request(t,i,_,function n(r,d){if(!s.destroyed){if(!s.ready)return s.once("ready",function(){n(r,d)});if(m[g]===e&&(m[g]=null),f!==s.pieces[t])return o();if(r)return s._debug("error getting piece %s (offset: %s length: %s) from %s: %s",t,i,_,e.remoteAddress+":"+e.remotePort,r.message),l?f.cancelRemaining(h):f.cancel(h),void o();if(s._debug("got piece %s (offset: %s length: %s) from %s",t,i,_,e.remoteAddress+":"+e.remotePort),!f.set(h,d,e))return o();var a=f.flush();O(a,function(e){if(!s.destroyed){if(e===s._hashes[t]){if(!s.pieces[t])return;s._debug("piece verified %s",t),s.pieces[t]=null,s._reservations[t]=null,s.bitfield.set(t,!0),s.store.put(t,a),s.wires.forEach(function(e){e.have(t)}),s._checkDone()&&!s.destroyed&&s.discovery.complete()}else s.pieces[t]=new U(f.length),s.emit("warning",new Error("Piece "+t+" failed verification"));o()}})}}),!0},i.prototype._checkDone=function(){var e=this;if(!e.destroyed){e.files.forEach(function(t){if(!t.done){for(var n=t._startPiece;n<=t._endPiece;++n)if(!e.bitfield.get(n))return;t.done=!0,t.emit("done"),e._debug("file done: "+t.name)}});for(var t=!0,n=0,r;n<e._selections.length;n++){r=e._selections[n];for(var o=r.from;o<=r.to;o++)if(!e.bitfield.get(o)){t=!1;break}if(!t)break}return!e.done&&t&&(e.done=!0,e._debug("torrent done: "+e.infoHash),e.emit("done")),e._gcSelections(),t}},i.prototype.load=function(e,t){var n=this;if(n.destroyed)throw new Error("torrent is destroyed");if(!n.ready)return n.once("ready",function(){n.load(e,t)});Array.isArray(e)||(e=[e]),t||(t=l);var r=new C(e),o=new h(n.store,n.pieceLength);R(r,o,function(e){return e?t(e):void(n.pieces.forEach(function(e,t){n.pieces[t]=null,n._reservations[t]=null,n.bitfield.set(t,!0)}),n._checkDone(),t(null))})},i.prototype.createServer=function(e){if("function"!=typeof W)throw new Error("node.js-only method");if(this.destroyed)throw new Error("torrent is destroyed");var t=new W(this,e);return this._servers.push(t),t},i.prototype.pause=function(){this.destroyed||(this._debug("pause"),this.paused=!0)},i.prototype.resume=function(){this.destroyed||(this._debug("resume"),this.paused=!1,this._drain())},i.prototype._debug=function(){if(!this.destroyed){var e=[].slice.call(arguments);e[0]="["+this.client._debugId+"] ["+this._debugId+"] "+e[0],m.apply(null,e)}},i.prototype._drain=function(){var e=this;if(this._debug("_drain numConns %s maxConns %s",e._numConns,e.client.maxConns),!("function"!=typeof E.connect||e.destroyed||e.paused||e._numConns>=e.client.maxConns)){this._debug("drain (%s queued, %s/%s peers)",e._numQueued,e.numPeers,e.client.maxConns);var t=e._queue.shift();if(t){this._debug("tcp connect attempt to %s",t.addr);var n=u(t.addr),r={host:n[0],port:n[1]},o=t.conn=E.connect(r);o.once("connect",function(){t.onConnect()}),o.once("error",function(e){t.destroy(e)}),t.startConnectTimeout(),o.on("close",function(){if(!e.destroyed){if(t.retries>=X.length)return void e._debug("conn %s closed: will not re-add (max %s attempts)",t.addr,X.length);var n=X[t.retries];e._debug("conn %s closed: will re-add to queue in %sms (attempt %s)",t.addr,n,t.retries+1);var r=setTimeout(function(){var n=e._addPeer(t.addr);n&&(n.retries=t.retries+1)},n);r.unref&&r.unref()}})}}},i.prototype._validAddr=function(e){var t;try{t=u(e)}catch(t){return!1}var n=t[0],r=t[1];return 0<r&&65535>r&&("127.0.0.1"!==n||r!==this.client.torrentPort)}}).call(this,e("_process"),"undefined"==typeof global?"undefined"==typeof self?"undefined"==typeof window?{}:window:self:global)},{"../package.json":136,"./file":2,"./peer":3,"./rarity-map":4,"./server":25,_process:69,"addr-to-ip-port":7,bitfield:13,"chunk-store-stream/write":29,debug:33,events:37,fs:26,"fs-chunk-store":53,"immediate-chunk-store":43,inherits:44,multistream:61,net:25,os:25,"parse-torrent":65,path:66,pump:70,"random-iterate":75,"run-parallel":92,"run-parallel-limit":91,"simple-get":96,"simple-sha1":100,speedometer:104,"torrent-discovery":116,"torrent-piece":119,uniq:122,ut_metadata:126,ut_pex:25,xtend:133,"xtend/mutable":134}],6:[function(e,t){function r(e,t){l.call(this),this.url=e,this.webPeerId=p.sync(e),this._torrent=t,this._init()}t.exports=r;var o=e("bitfield"),s=e("safe-buffer").Buffer,i=e("debug")("webtorrent:webconn"),a=e("simple-get"),c=e("inherits"),p=e("simple-sha1"),l=e("bittorrent-protocol"),u=e("../package.json").version;c(r,l),r.prototype._init=function(){var e=this;e.setKeepAlive(!0),e.once("handshake",function(t){if(!e.destroyed){e.handshake(t,e.webPeerId);for(var n=e._torrent.pieces.length,r=new o(n),s=0;s<=n;s++)r.set(s,!0);e.bitfield(r)}}),e.once("interested",function(){i("interested"),e.unchoke()}),e.on("uninterested",function(){i("uninterested")}),e.on("choke",function(){i("choke")}),e.on("unchoke",function(){i("unchoke")}),e.on("bitfield",function(){i("bitfield")}),e.on("request",function(t,n,r,o){i("request pieceIndex=%d offset=%d length=%d",t,n,r),e.httpRequest(t,n,r,o)})},r.prototype.httpRequest=function(e,t,r,o){var c=this,p=e*c._torrent.pieceLength,l=p+t,f=l+r-1,h=c._torrent.files,m;if(1>=h.length)m=[{url:c.url,start:l,end:f}];else{var g=h.filter(function(e){return e.offset<=f&&e.offset+e.length>l});if(1>g.length)return o(new Error("Could not find file corresponnding to web seed range request"));m=g.map(function(e){var t=e.offset+e.length-1,r=c.url+("/"===c.url[c.url.length-1]?"":"/")+e.path;return{url:r,fileOffsetInRange:n(e.offset-l,0),start:n(l-e.offset,0),end:d(t,f-e.offset)}})}var _=0,y=!1,b;1<m.length&&(b=s.alloc(r)),m.forEach(function(n){function s(e,t){return 200>e.statusCode||300<=e.statusCode?(y=!0,o(new Error("Unexpected HTTP status code "+e.statusCode))):void(i("Got data of length %d",t.length),1===m.length?o(null,t):(t.copy(b,n.fileOffsetInRange),++_===m.length&&o(null,b)))}var d=n.url,c=n.start,p=n.end;i("Requesting url=%s pieceIndex=%d offset=%d length=%d start=%d end=%d",d,e,t,r,c,p);var l={url:d,method:"GET",headers:{"user-agent":"WebTorrent/"+u+" (https://webtorrent.io)",range:"bytes="+c+"-"+p}};a.concat(l,function(e,t,n){return y?void 0:e?"undefined"==typeof window||d.startsWith(window.location.origin+"/")?(y=!0,o(e)):a.head(d,function(t,n){return y?void 0:t?(y=!0,o(t)):200>n.statusCode||300<=n.statusCode?(y=!0,o(new Error("Unexpected HTTP status code "+n.statusCode))):n.url===d?(y=!0,o(e)):void(l.url=n.url,a.concat(l,function(e,t,n){return y?void 0:e?(y=!0,o(e)):void s(t,n)}))}):void s(t,n)})})},r.prototype.destroy=function(){l.prototype.destroy.call(this),this._torrent=null}},{"../package.json":136,bitfield:13,"bittorrent-protocol":14,debug:33,inherits:44,"safe-buffer":94,"simple-get":96,"simple-sha1":100}],7:[function(e,t){var n=/^\[?([^\]]+)\]?:(\d+)$/,r={},o=0;t.exports=function(e){if(1e5==o&&t.exports.reset(),!r[e]){var s=n.exec(e);if(!s)throw new Error("invalid addr: "+e);r[e]=[s[1],+s[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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r=0,s=t.length;for(e.push(d);r<s;r++)null!=t[r]&&n._encode(e,t[r]);e.push(o)},t.exports=n},{"safe-buffer":94}],11:[function(e,t){var n=t.exports;n.encode=e("./encode"),n.decode=e("./decode"),n.byteLength=n.encodingLength=function(e){return n.encode(e).length}},{"./decode":9,"./encode":10}],12:[function(e,t){t.exports=function(e,t,n,r,o){var s,i;if(void 0===r)r=0;else if(r|=0,0>r||r>=e.length)throw new RangeError("invalid lower bound");if(void 0===o)o=e.length-1;else if(o|=0,o<r||o>=e.length)throw new RangeError("invalid upper bound");for(;r<=o;)if(s=r+(o-r>>1),i=+n(e[s],t,s,e),0>i)r=s+1;else if(0<i)o=s-1;else return s;return~r}},{}],13:[function(e,t){(function(e){function r(e,t){return this instanceof r?void(0===arguments.length&&(e=0),this.grow=t&&(isFinite(t.grow)&&o(t.grow)||t.grow)||0,("number"==typeof e||e===void 0)&&(e=new s(o(e)),e.fill&&!e._isBuffer&&e.fill(0)),this.buffer=e):new r(e,t)}function o(e){var t=e>>3;return 0!=e%8&&t++,t}var s="undefined"==typeof 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e?r=a.from(e,"hex"):(r=e,e=r.toString("hex")),"string"==typeof t?o=a.from(t,"hex"):(o=t,t=o.toString("hex")),20!==r.length||20!==o.length)throw new Error("infoHash and peerId MUST have length 20");this._debug("handshake i=%s p=%s exts=%o",e,t,n);var s=a.from(x);s[5]|=16,n&&n.dht&&(s[7]|=1),this._push(a.concat([g,s,r,o])),this._handshakeSent=!0,this.peerExtensions.extended&&!this._extendedHandshakeSent&&this._sendExtendedHandshake()},r.prototype._sendExtendedHandshake=function(){var e=p(this.extendedHandshake);for(var t in e.m={},this.extendedMapping){var n=this.extendedMapping[t];e.m[n]=+t}this.extended(0,i.encode(e)),this._extendedHandshakeSent=!0},r.prototype.choke=function(){if(!this.amChoking){for(this.amChoking=!0,this._debug("choke");this.peerRequests.length;)this.peerRequests.pop();this._push(y)}},r.prototype.unchoke=function(){this.amChoking&&(this.amChoking=!1,this._debug("unchoke"),this._push(b))},r.prototype.interested=function(){this.amInterested||(this.amInterested=!0,this._debug("interested"),this._push(w))},r.prototype.uninterested=function(){this.amInterested&&(this.amInterested=!1,this._debug("uninterested"),this._push(k))},r.prototype.have=function(e){this._debug("have %d",e),this._message(4,[e],null)},r.prototype.bitfield=function(e){this._debug("bitfield"),a.isBuffer(e)||(e=e.buffer),this._message(5,[],e)},r.prototype.request=function(e,t,r,o){return o||(o=function(){}),this._finished?o(new Error("wire is closed")):this.peerChoking?o(new Error("peer is choking")):void(this._debug("request index=%d offset=%d length=%d",e,t,r),this.requests.push(new n(e,t,r,o)),this._updateTimeout(),this._message(6,[e,t,r],null))},r.prototype.piece=function(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)},r.prototype.cancel=function(e,t,n){this._debug("cancel index=%d offset=%d length=%d",e,t,n),this._callback(o(this.requests,e,t,n),new Error("request was cancelled"),null),this._message(8,[e,t,n],null)},r.prototype.port=function(e){this._debug("port %d",e);var t=a.from(v);t.writeUInt16BE(e,5),this._push(t)},r.prototype.extended=function(e,t){if(this._debug("extended ext=%s",e),"string"==typeof e&&this.peerExtendedMapping[e]&&(e=this.peerExtendedMapping[e]),"number"==typeof e){var n=a.from([e]),r=a.isBuffer(t)?t:i.encode(t);this._message(20,[],a.concat([n,r]))}else throw new Error("Unrecognized extension: "+e)},r.prototype._read=function(){},r.prototype._message=function(e,t,n){var r=n?n.length:0,o=a.allocUnsafe(5+4*t.length);o.writeUInt32BE(o.length+r-4,0),o[4]=e;for(var s=0;s<t.length;s++)o.writeUInt32BE(t[s],5+4*s);this._push(o),n&&this._push(n)},r.prototype._push=function(e){return this._finished?void 0:this.push(e)},r.prototype._onKeepAlive=function(){this._debug("got keep-alive"),this.emit("keep-alive")},r.prototype._onHandshake=function(e,t,n){var 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 s in this._ext)this._ext[s].onHandshake(r,o,n);n.extended&&this._handshakeSent&&!this._extendedHandshakeSent&&this._sendExtendedHandshake()},r.prototype._onChoke=function(){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)},r.prototype._onUnchoke=function(){this.peerChoking=!1,this._debug("got 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offset=%d",e,t),this._callback(o(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)},r.prototype._onCancel=function(e,t,n){this._debug("got cancel index=%d offset=%d length=%d",e,t,n),o(this.peerRequests,e,t,n),this.emit("cancel",e,t,n)},r.prototype._onPort=function(e){this._debug("got port %d",e),this.emit("port",e)},r.prototype._onExtended=function(e,t){if(0===e){var n;try{n=i.decode(t)}catch(e){this._debug("ignoring invalid extended handshake: %s",e.message||e)}if(!n)return;this.peerExtendedHandshake=n;if("object"==typeof n.m)for(var r in n.m)this.peerExtendedMapping[r]=+n.m[r].toString();for(r in this._ext)this.peerExtendedMapping[r]&&this._ext[r].onExtendedHandshake(this.peerExtendedHandshake);this._debug("got extended handshake"),this.emit("extended","handshake",this.peerExtendedHandshake)}else this.extendedMapping[e]&&(e=this.extendedMapping[e],this._ext[e]&&this._ext[e].onMessage(t)),this._debug("got extended message ext=%s",e),this.emit("extended",e,t)},r.prototype._onTimeout=function(){this._debug("request timed out"),this._callback(this.requests.shift(),new Error("request has timed out"),null),this.emit("timeout")},r.prototype._write=function(e,t,n){for(this._bufferSize+=e.length,this._buffer.push(e);this._bufferSize>=this._parserSize;){var r=1===this._buffer.length?this._buffer[0]:a.concat(this._buffer);this._bufferSize-=this._parserSize,this._buffer=this._bufferSize?[r.slice(this._parserSize)]:[],this._parser(r.slice(0,this._parserSize))}n(null)},r.prototype._callback=function(e,t,n){e&&(this._clearTimeout(),!this.peerChoking&&!this._finished&&this._updateTimeout(),e.callback(t,n))},r.prototype._clearTimeout=function(){this._timeout&&(clearTimeout(this._timeout),this._timeout=null)},r.prototype._updateTimeout=function(){var e=this;e._timeoutMs&&e.requests.length&&!e._timeout&&(e._timeout=setTimeout(function(){e._onTimeout()},e._timeoutMs),e._timeoutUnref&&e._timeout.unref&&e._timeout.unref())},r.prototype._parse=function(e,t){this._parserSize=e,this._parser=t},r.prototype._onMessageLength=function(e){var t=e.readUInt32BE(0);0<t?this._parse(t,this._onMessage):(this._onKeepAlive(),this._parse(4,this._onMessageLength))},r.prototype._onMessage=function(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);}},r.prototype._parseHandshake=function(){var e=this;e._parse(1,function(t){var n=t.readUInt8(0);e._parse(n+48,function(t){var r=t.slice(0,n);return"BitTorrent protocol"===r.toString()?void(t=t.slice(n),e._onHandshake(t.slice(8,28),t.slice(28,48),{dht:!!(1&t[7]),extended:!!(16&t[5])}),e._parse(4,e._onMessageLength)):(e._debug("Error: wire not speaking BitTorrent protocol (%s)",r.toString()),void e.end())})})},r.prototype._onFinish=function(){for(this._finished=!0,this.push(null);this.read(););for(clearInterval(this._keepAliveInterval),this._parse(Number.MAX_VALUE,function(){});this.peerRequests.length;)this.peerRequests.pop();for(;this.requests.length;)this._callback(this.requests.pop(),new Error("wire was closed"),null)},r.prototype._debug=function(){var e=[].slice.call(arguments);e[0]="["+this._debugId+"] 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window&&window.process&&"renderer"===window.process.type||"undefined"!=typeof document&&document.documentElement&&document.documentElement.style&&document.documentElement.style.WebkitAppearance||"undefined"!=typeof window&&window.console&&(window.console.firebug||window.console.exception&&window.console.table)||"undefined"!=typeof navigator&&navigator.userAgent&&navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/)&&31<=parseInt(RegExp.$1,10)||"undefined"!=typeof navigator&&navigator.userAgent&&navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/)},n.storage="undefined"!=typeof chrome&&"undefined"!=typeof chrome.storage?chrome.storage.local:function(){try{return window.localStorage}catch(t){}}(),n.colors=["lightseagreen","forestgreen","goldenrod","dodgerblue","darkorchid","crimson"],n.formatters.j=function(e){try{return JSON.stringify(e)}catch(e){return"[UnexpectedJSONParseError]: 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required");d.peerId="string"==typeof e.peerId?e.peerId:e.peerId.toString("hex"),d._peerIdBuffer=o.from(d.peerId,"hex"),d._peerIdBinary=d._peerIdBuffer.toString("binary"),d.infoHash="string"==typeof e.infoHash?e.infoHash:e.infoHash.toString("hex"),d._infoHashBuffer=o.from(d.infoHash,"hex"),d._infoHashBinary=d._infoHashBuffer.toString("binary"),s("new client %s",d.infoHash),d.destroyed=!1,d._port=e.port,d._getAnnounceOpts=e.getAnnounceOpts,d._rtcConfig=e.rtcConfig,d._userAgent=e.userAgent,d._wrtc="function"==typeof e.wrtc?e.wrtc():e.wrtc;var a="string"==typeof e.announce?[e.announce]:null==e.announce?[]:e.announce;a=a.map(function(e){return e=e.toString(),"/"===e[e.length-1]&&(e=e.substring(0,e.length-1)),e}),a=u(a);var c=!1!==d._wrtc&&(!!d._wrtc||l.WEBRTC_SUPPORT);d._trackers=a.map(function(e){var n=f.parse(e).protocol;return("http:"===n||"https:"===n)&&"function"==typeof m?new m(d,e):"udp:"===n&&"function"==typeof g?new g(d,e):("ws:"===n||"wss:"===n)&&c?"ws:"===n&&"undefined"!=typeof window&&"https:"===window.location.protocol?(t(new Error("Unsupported tracker protocol: "+e)),null):new _(d,e):(t(new Error("Unsupported tracker protocol: "+e)),null)}).filter(Boolean)}t.exports=r;var o=e("safe-buffer").Buffer,s=e("debug")("bittorrent-tracker:client"),i=e("events").EventEmitter,d=e("xtend"),a=e("inherits"),c=e("once"),p=e("run-parallel"),l=e("simple-peer"),u=e("uniq"),f=e("url"),h=e("./lib/common"),m=e("./lib/client/http-tracker"),g=e("./lib/client/udp-tracker"),_=e("./lib/client/websocket-tracker");a(r,i),r.scrape=function(e,t){if(t=c(t),!e.infoHash)throw new Error("Option `infoHash` is required");if(!e.announce)throw new Error("Option `announce` is required");var n=d(e,{infoHash:Array.isArray(e.infoHash)?e.infoHash[0]:e.infoHash,peerId:o.from("01234567890123456789"),port:6881}),s=new r(n);s.once("error",t),s.once("warning",t);var i=Array.isArray(e.infoHash)?e.infoHash.length:1,a={};return s.on("scrape",function(e){if(i-=1,a[e.infoHash]=e,0===i){s.destroy();var n=Object.keys(a);1===n.length?t(null,a[n[0]]):t(null,a)}}),e.infoHash=Array.isArray(e.infoHash)?e.infoHash.map(function(e){return o.from(e,"hex")}):o.from(e.infoHash,"hex"),s.scrape({infoHash:e.infoHash}),s},r.prototype.start=function(e){var t=this;s("send `start`"),e=t._defaultAnnounceOpts(e),e.event="started",t._announce(e),t._trackers.forEach(function(e){e.setInterval()})},r.prototype.stop=function(e){var t=this;s("send `stop`"),e=t._defaultAnnounceOpts(e),e.event="stopped",t._announce(e)},r.prototype.complete=function(e){var t=this;s("send `complete`"),e||(e={}),e=t._defaultAnnounceOpts(e),e.event="completed",t._announce(e)},r.prototype.update=function(e){var t=this;s("send `update`"),e=t._defaultAnnounceOpts(e),e.event&&delete e.event,t._announce(e)},r.prototype._announce=function(e){var t=this;t._trackers.forEach(function(t){t.announce(e)})},r.prototype.scrape=function(e){var t=this;s("send `scrape`"),e||(e={}),t._trackers.forEach(function(t){t.scrape(e)})},r.prototype.setInterval=function(e){var t=this;s("setInterval %d",e),t._trackers.forEach(function(t){t.setInterval(e)})},r.prototype.destroy=function(e){var t=this;if(!t.destroyed){t.destroyed=!0,s("destroy");var n=t._trackers.map(function(e){return function(t){e.destroy(t)}});p(n,e),t._trackers=[],t._getAnnounceOpts=null}},r.prototype._defaultAnnounceOpts=function(e){var t=this;return e||(e={}),null==e.numwant&&(e.numwant=h.DEFAULT_ANNOUNCE_PEERS),null==e.uploaded&&(e.uploaded=0),null==e.downloaded&&(e.downloaded=0),t._getAnnounceOpts&&(e=d(e,t._getAnnounceOpts())),e}}).call(this,e("_process"))},{"./lib/client/http-tracker":25,"./lib/client/udp-tracker":25,"./lib/client/websocket-tracker":19,"./lib/common":20,_process:69,debug:21,events:37,inherits:44,once:63,"run-parallel":92,"safe-buffer":94,"simple-peer":97,uniq:122,url:124,xtend:133}],18:[function(e,t){function n(e,t){var n=this;r.call(n),n.client=e,n.announceUrl=t,n.interval=null,n.destroyed=!1}t.exports=n;var r=e("events").EventEmitter,o=e("inherits");o(n,r),n.prototype.setInterval=function(e){var t=this;null==e&&(e=t.DEFAULT_ANNOUNCE_INTERVAL),clearInterval(t.interval),e&&(t.interval=setInterval(function(){t.announce(t.client._defaultAnnounceOpts())},e),t.interval.unref&&t.interval.unref())}},{events:37,inherits:44}],19:[function(e,n){function o(e,t){var n=this;h.call(n,e,t),a("new websocket tracker %s",t),n.peers={},n.socket=null,n.reconnecting=!1,n.retries=0,n.reconnectTimer=null,n.expectingResponse=!1,n._openSocket()}function s(){}n.exports=o;var a=e("debug")("bittorrent-tracker:websocket-tracker"),i=e("xtend"),c=e("inherits"),p=e("simple-peer"),l=e("randombytes"),u=e("simple-websocket"),f=e("../common"),h=e("./tracker"),m={};c(o,h),o.prototype.DEFAULT_ANNOUNCE_INTERVAL=30000,o.prototype.announce=function(e){var t=this;if(!(t.destroyed||t.reconnecting)){if(!t.socket.connected)return void t.socket.once("connect",function(){t.announce(e)});var n=i(e,{action:"announce",info_hash:t.client._infoHashBinary,peer_id:t.client._peerIdBinary});if(t._trackerId&&(n.trackerid=t._trackerId),"stopped"===e.event||"completed"===e.event)t._send(n);else{var r=d(e.numwant,10);t._generateOffers(r,function(e){n.numwant=r,n.offers=e,t._send(n)})}}},o.prototype.scrape=function(e){var t=this;if(!(t.destroyed||t.reconnecting)){if(!t.socket.connected)return void t.socket.once("connect",function(){t.scrape(e)});var n=Array.isArray(e.infoHash)&&0<e.infoHash.length?e.infoHash.map(function(e){return e.toString("binary")}):e.infoHash&&e.infoHash.toString("binary")||t.client._infoHashBinary;t._send({action:"scrape",info_hash:n})}},o.prototype.destroy=function(e){function t(){d&&(clearTimeout(d),d=null),i.removeListener("data",t),i.destroy(),i=null}var n=this;if(e||(e=s),n.destroyed)return e(null);for(var r in n.destroyed=!0,clearInterval(n.interval),clearTimeout(n.reconnectTimer),n.peers){var o=n.peers[r];clearTimeout(o.trackerTimeout),o.destroy()}if(n.peers=null,n.socket&&(n.socket.removeListener("connect",n._onSocketConnectBound),n.socket.removeListener("data",n._onSocketDataBound),n.socket.removeListener("close",n._onSocketCloseBound),n.socket.removeListener("error",n._onSocketErrorBound),n.socket=null),n._onSocketConnectBound=null,n._onSocketErrorBound=null,n._onSocketDataBound=null,n._onSocketCloseBound=null,m[n.announceUrl]&&(m[n.announceUrl].consumers-=1),0<m[n.announceUrl].consumers)return e();var i=m[n.announceUrl];if(delete m[n.announceUrl],i.on("error",s),i.once("close",e),!n.expectingResponse)return t();var d=setTimeout(t,f.DESTROY_TIMEOUT);i.once("data",t)},o.prototype._openSocket=function(){var e=this;e.destroyed=!1,e.peers||(e.peers={}),e._onSocketConnectBound=function(){e._onSocketConnect()},e._onSocketErrorBound=function(t){e._onSocketError(t)},e._onSocketDataBound=function(t){e._onSocketData(t)},e._onSocketCloseBound=function(){e._onSocketClose()},e.socket=m[e.announceUrl],e.socket?m[e.announceUrl].consumers+=1:(e.socket=m[e.announceUrl]=new u(e.announceUrl),e.socket.consumers=1,e.socket.once("connect",e._onSocketConnectBound)),e.socket.on("data",e._onSocketDataBound),e.socket.once("close",e._onSocketCloseBound),e.socket.once("error",e._onSocketErrorBound)},o.prototype._onSocketConnect=function(){var e=this;e.destroyed||e.reconnecting&&(e.reconnecting=!1,e.retries=0,e.announce(e.client._defaultAnnounceOpts()))},o.prototype._onSocketData=function(e){var t=this;if(!t.destroyed){t.expectingResponse=!1;try{e=JSON.parse(e)}catch(e){return void t.client.emit("warning",new Error("Invalid tracker response"))}"announce"===e.action?t._onAnnounceResponse(e):"scrape"===e.action?t._onScrapeResponse(e):t._onSocketError(new Error("invalid action in WS response: "+e.action))}},o.prototype._onAnnounceResponse=function(e){var t=this;if(e.info_hash!==t.client._infoHashBinary)return void a("ignoring websocket data from %s for %s (looking for %s: reused socket)",t.announceUrl,f.binaryToHex(e.info_hash),t.client.infoHash);if(!(e.peer_id&&e.peer_id===t.client._peerIdBinary)){a("received %s from %s for %s",JSON.stringify(e),t.announceUrl,t.client.infoHash);var n=e["failure reason"];if(n)return t.client.emit("warning",new Error(n));var r=e["warning message"];r&&t.client.emit("warning",new Error(r));var o=e.interval||e["min interval"];o&&t.setInterval(1e3*o);var s=e["tracker id"];if(s&&(t._trackerId=s),null!=e.complete){var i=Object.assign({},e,{announce:t.announceUrl,infoHash:f.binaryToHex(e.info_hash)});t.client.emit("update",i)}var d;if(e.offer&&e.peer_id&&(a("creating peer (from remote offer)"),d=t._createPeer(),d.id=f.binaryToHex(e.peer_id),d.once("signal",function(n){var r={action:"announce",info_hash:t.client._infoHashBinary,peer_id:t.client._peerIdBinary,to_peer_id:e.peer_id,answer:n,offer_id:e.offer_id};t._trackerId&&(r.trackerid=t._trackerId),t._send(r)}),d.signal(e.offer),t.client.emit("peer",d)),e.answer&&e.peer_id){var c=f.binaryToHex(e.offer_id);d=t.peers[c],d?(d.id=f.binaryToHex(e.peer_id),d.signal(e.answer),t.client.emit("peer",d),clearTimeout(d.trackerTimeout),d.trackerTimeout=null,delete t.peers[c]):a("got unexpected answer: "+JSON.stringify(e.answer))}}},o.prototype._onScrapeResponse=function(e){var t=this;e=e.files||{};var n=Object.keys(e);return 0===n.length?void t.client.emit("warning",new Error("invalid scrape response")):void n.forEach(function(n){var r=Object.assign(e[n],{announce:t.announceUrl,infoHash:f.binaryToHex(n)});t.client.emit("scrape",r)})},o.prototype._onSocketClose=function(){var e=this;e.destroyed||(e.destroy(),e._startReconnectTimer())},o.prototype._onSocketError=function(e){var t=this;t.destroyed||(t.destroy(),t.client.emit("warning",e),t._startReconnectTimer())},o.prototype._startReconnectTimer=function(){var e=this,n=r(Math.random()*30000)+d(t(2,e.retries)*15000,1800000);e.reconnecting=!0,clearTimeout(e.reconnectTimer),e.reconnectTimer=setTimeout(function(){e.retries++,e._openSocket()},n),e.reconnectTimer.unref&&e.reconnectTimer.unref(),a("reconnecting socket in %s ms",n)},o.prototype._send=function(e){var t=this;if(!t.destroyed){t.expectingResponse=!0;var n=JSON.stringify(e);a("send %s",n),t.socket.send(n)}},o.prototype._generateOffers=function(e,t){function n(){var e=l(20).toString("hex");a("creating peer (from _generateOffers)");var t=o.peers[e]=o._createPeer({initiator:!0});t.once("signal",function(t){s.push({offer:t,offer_id:f.hexToBinary(e)}),r()}),t.trackerTimeout=setTimeout(function(){a("tracker timeout: destroying 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e&&(e+=""),r.from(e,"hex").toString("binary")};var s=e("./common-node");o(n,s)},{"./common-node":25,"safe-buffer":94,"xtend/mutable":134}],21:[function(e,t,n){arguments[4][15][0].apply(n,arguments)},{"./debug":22,_process:69,dup:15}],22:[function(e,t,n){arguments[4][16][0].apply(n,arguments)},{dup:16,ms:60}],23:[function(e,t){(function(n){t.exports=function(e,t){function r(s){o.removeEventListener("loadend",r,!1),s.error?t(s.error):t(null,new n(o.result))}if("undefined"==typeof Blob||!(e instanceof Blob))throw new Error("first argument must be a Blob");if("function"!=typeof t)throw new Error("second argument must be a function");var o=new FileReader;o.addEventListener("loadend",r,!1),o.readAsArrayBuffer(e)}}).call(this,e("buffer").Buffer)},{buffer:27}],24:[function(e,t){(function(n){function r(e,t){return this instanceof r?void(s.call(this),!t&&(t={}),"object"==typeof 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r=n-t,o={dataReferenceIndex:e.readUInt16BE(6),channelCount:e.readUInt16BE(16),sampleSize:e.readUInt16BE(18),sampleRate:e.readUInt32BE(24),children:[]},s=28;8<=r-s;){var i=g.decode(e,s,r);o.children.push(i),o[i.type]=i,s+=i.length}return o},n.AudioSampleEntry.encodingLength=function(e){var t=28,n=e.children||[];return n.forEach(function(e){t+=g.encodingLength(e)}),t},n.esds={},n.esds.encode=function(e,r,o){r=r?r.slice(o):t(e.buffer.length),e.buffer.copy(r,0),n.esds.encode.bytes=e.buffer.length},n.esds.decode=function(e,n,r){e=e.slice(n,r);var o=_.Descriptor.decode(e,0,e.length),s="ESDescriptor"===o.tagName?o:{},i=s.DecoderConfigDescriptor||{},d=i.oti||0,a=i.DecoderSpecificInfo,c=a?(248&a.buffer.readUInt8(0))>>3:0,p=null;return d&&(p=d.toString(16),c&&(p+="."+c)),{mimeCodec:p,buffer:new t(e.slice(0))}},n.esds.encodingLength=function(e){return e.buffer.length},n.stsz={},n.stsz.encode=function(e,r,o){var s=e.entries||[];r=r?r.slice(o):t(n.stsz.encodingLength(e)),r.writeUInt32BE(0,0),r.writeUInt32BE(s.length,4);for(var d=0;d<s.length;d++)r.writeUInt32BE(s[d],4*d+8);return n.stsz.encode.bytes=8+4*s.length,r},n.stsz.decode=function(e,t){e=e.slice(t);for(var n=e.readUInt32BE(0),r=e.readUInt32BE(4),o=Array(r),s=0;s<r;s++)o[s]=0===n?e.readUInt32BE(4*s+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,r,o){var s=e.entries||[];r=r?r.slice(o):new t(n.stco.encodingLength(e)),r.writeUInt32BE(s.length,0);for(var d=0;d<s.length;d++)r.writeUInt32BE(s[d],4*d+4);return n.stco.encode.bytes=4+4*s.length,r},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.stts={},n.stts.encode=function(e,r,o){var s=e.entries||[];r=r?r.slice(o):new t(n.stts.encodingLength(e)),r.writeUInt32BE(s.length,0);for(var d=0,i;d<s.length;d++)i=8*d+4,r.writeUInt32BE(s[d].count||0,i),r.writeUInt32BE(s[d].duration||0,i+4);return n.stts.encode.bytes=4+8*e.entries.length,r},n.stts.decode=function(e,t){e=e.slice(t);for(var n=e.readUInt32BE(0),r=Array(n),o=0,s;o<n;o++)s=8*o+4,r[o]={count:e.readUInt32BE(s),duration:e.readUInt32BE(s+4)};return{entries:r}},n.stts.encodingLength=function(e){return 4+8*e.entries.length},n.ctts={},n.ctts.encode=function(e,r,o){var s=e.entries||[];r=r?r.slice(o):new t(n.ctts.encodingLength(e)),r.writeUInt32BE(s.length,0);for(var d=0,i;d<s.length;d++)i=8*d+4,r.writeUInt32BE(s[d].count||0,i),r.writeUInt32BE(s[d].compositionOffset||0,i+4);return n.ctts.encode.bytes=4+8*s.length,r},n.ctts.decode=function(e,t){e=e.slice(t);for(var n=e.readUInt32BE(0),r=Array(n),o=0,s;o<n;o++)s=8*o+4,r[o]={count:e.readUInt32BE(s),compositionOffset:e.readInt32BE(s+4)};return{entries:r}},n.ctts.encodingLength=function(e){return 4+8*e.entries.length},n.stsc={},n.stsc.encode=function(e,r,o){var s=e.entries||[];r=r?r.slice(o):new t(n.stsc.encodingLength(e)),r.writeUInt32BE(s.length,0);for(var d=0,i;d<s.length;d++)i=12*d+4,r.writeUInt32BE(s[d].firstChunk||0,i),r.writeUInt32BE(s[d].samplesPerChunk||0,i+4),r.writeUInt32BE(s[d].sampleDescriptionId||0,i+8);return n.stsc.encode.bytes=4+12*s.length,r},n.stsc.decode=function(e,t){e=e.slice(t);for(var n=e.readUInt32BE(0),r=Array(n),o=0,s;o<n;o++)s=12*o+4,r[o]={firstChunk:e.readUInt32BE(s),samplesPerChunk:e.readUInt32BE(s+4),sampleDescriptionId:e.readUInt32BE(s+8)};return{entries:r}},n.stsc.encodingLength=function(e){return 4+12*e.entries.length},n.dref={},n.dref.encode=function(e,r,o){r=r?r.slice(o):new t(n.dref.encodingLength(e));var s=e.entries||[];r.writeUInt32BE(s.length,0);for(var d=4,a=0;a<s.length;a++){var i=s[a],c=(i.buf?i.buf.length:0)+4+4;r.writeUInt32BE(c,d),d+=4,r.write(i.type,d,4,"ascii"),d+=4,i.buf&&(i.buf.copy(r,d),d+=i.buf.length)}return 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4+12*e.entries.length},n.hdlr={},n.hdlr.encode=function(e,r,o){r=r?r.slice(o):new t(n.hdlr.encodingLength(e));var s=21+(e.name||"").length;return r.fill(0,0,s),r.write(e.handlerType||"",4,4,"ascii"),p(e.name||"",r,20),n.hdlr.encode.bytes=s,r},n.hdlr.decode=function(e,t,n){return e=e.slice(t),{handlerType:e.toString("ascii",4,8),name:m(e,20,n)}},n.hdlr.encodingLength=function(e){return 21+(e.name||"").length},n.mehd={},n.mehd.encode=function(e,r,o){return r=r?r.slice(o):new t(4),r.writeUInt32BE(e.fragmentDuration||0,0),n.mehd.encode.bytes=4,r},n.mehd.decode=function(e,t){return e=e.slice(t),{fragmentDuration:e.readUInt32BE(0)}},n.mehd.encodingLength=function(){return 4},n.trex={},n.trex.encode=function(e,r,o){return r=r?r.slice(o):new 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t=[],n=0;n<e.length;n+=20)t.push(e.slice(n,n+20).toString("hex"));return t}function i(e,t){if(!e)throw new Error("Torrent is missing required field: "+t)}t.exports=r,t.exports.decode=r,t.exports.encode=function(e){var t={info:e.info};return t["announce-list"]=(e.announce||[]).map(function(e){return t.announce||(t.announce=e),e=n.from(e,"utf8"),[e]}),t["url-list"]=e.urlList||[],e.created&&(t["creation date"]=0|e.created.getTime()/1e3),e.createdBy&&(t["created by"]=e.createdBy),e.comment&&(t.comment=e.comment),d.encode(t)};var d=e("bencode"),a=e("path"),c=e("simple-sha1"),p=e("uniq")}).call(this,e("buffer").Buffer)},{bencode:11,buffer:27,path:66,"simple-sha1":100,uniq:122}],65:[function(e,t){(function(n,r){function o(e){if("string"==typeof e&&/^(stream-)?magnet:/.test(e))return c(e);if("string"==typeof e&&(/^[a-f0-9]{40}$/i.test(e)||/^[a-z2-7]{32}$/i.test(e)))return c("magnet:?xt=urn:btih:"+e);if(r.isBuffer(e)&&20===e.length)return 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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(!S.length)return n.pathname=null,n.path=n.search?"/"+n.search:null,n.href=n.format(),n;for(var B=S.slice(-1)[0],I=(n.host||e.host||1<S.length)&&("."===B||".."===B)||""===B,L=0,T=S.length;0<=T;T--)B=S[T],"."===B?S.splice(T,1):".."===B?(S.splice(T,1),L++):L&&(S.splice(T,1),L--);if(!x&&!v)for(;L--;L)S.unshift("..");x&&""!==S[0]&&(!S[0]||"/"!==S[0].charAt(0))&&S.unshift(""),I&&"/"!==S.join("/").substr(-1)&&S.push("");var i=""===S[0]||S[0]&&"/"===S[0].charAt(0);if(C){n.hostname=n.host=i?"":S.length?S.shift():"";var E=n.host&&0<n.host.indexOf("@")&&n.host.split("@");E&&(n.auth=E.shift(),n.host=n.hostname=E.shift())}return x=x||n.host&&S.length,x&&!i&&S.unshift(""),S.length?n.pathname=S.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=i.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":125,punycode:71,querystring:74}],125:[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}}},{}],126:[function(e,t){var n=e("bencode"),r=e("bitfield"),o=e("safe-buffer").Buffer,i=e("debug")("ut_metadata"),d=e("events").EventEmitter,a=e("inherits"),c=e("simple-sha1"),p=1e3,l=16384;t.exports=function(e){function t(t){d.call(this),this._wire=t,this._metadataComplete=!1,this._metadataSize=null,this._remainingRejects=null,this._fetching=!1,this._bitfield=new r(0,{grow:p}),o.isBuffer(e)&&this.setMetadata(e)}return a(t,d),t.prototype.name="ut_metadata",t.prototype.onHandshake=function(e){this._infoHash=e},t.prototype.onExtendedHandshake=function(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=s(this._metadataSize/l),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"))},t.prototype.onMessage=function(e){var t,r;try{var o=e.toString(),s=o.indexOf("ee")+2;t=n.decode(o.substring(0,s)),r=e.slice(s)}catch(e){return}switch(t.msg_type){case 0:this._onRequest(t.piece);break;case 1:this._onData(t.piece,r,t.total_size);break;case 2:this._onReject(t.piece);}},t.prototype.fetch=function(){this._metadataComplete||(this._fetching=!0,this._metadataSize&&this._requestPieces())},t.prototype.cancel=function(){this._fetching=!1},t.prototype.setMetadata=function(e){if(this._metadataComplete)return!0;i("set metadata");try{var t=n.decode(e).info;t&&(e=n.encode(t))}catch(e){}return this._infoHash&&this._infoHash!==c.sync(e)?!1:(this.cancel(),this.metadata=e,this._metadataComplete=!0,this._metadataSize=this.metadata.length,this._wire.extendedHandshake.metadata_size=this._metadataSize,this.emit("metadata",n.encode({info:n.decode(this.metadata)})),!0)},t.prototype._send=function(e,t){var r=n.encode(e);o.isBuffer(t)&&(r=o.concat([r,t])),this._wire.extended("ut_metadata",r)},t.prototype._request=function(e){this._send({msg_type:0,piece:e})},t.prototype._data=function(e,t,n){var r={msg_type:1,piece:e};"number"==typeof n&&(r.total_size=n),this._send(r,t)},t.prototype._reject=function(e){this._send({msg_type:2,piece:e})},t.prototype._onRequest=function(e){if(!this._metadataComplete)return void this._reject(e);var t=e*l,n=t+l;n>this._metadataSize&&(n=this._metadataSize);var r=this.metadata.slice(t,n);this._data(e,r,this._metadataSize)},t.prototype._onData=function(e,t){t.length>l||(t.copy(this.metadata,e*l),this._bitfield.set(e),this._checkDone())},t.prototype._onReject=function(e){0<this._remainingRejects&&this._fetching?(this._request(e),this._remainingRejects-=1):this.emit("warning",new Error("Peer sent \"reject\" too much"))},t.prototype._requestPieces=function(){this.metadata=o.alloc(this._metadataSize);for(var e=0;e<this._numPieces;e++)this._request(e)},t.prototype._checkDone=function(){for(var e=!0,t=0;t<this._numPieces;t++)if(!this._bitfield.get(t)){e=!1;break}if(e){var n=this.setMetadata(this.metadata);n||this._failedMetadata()}},t.prototype._failedMetadata=function(){this._bitfield=new r(0,{grow:p}),this._remainingRejects-=this._numPieces,0<this._remainingRejects?this._requestPieces():this.emit("warning",new Error("Peer sent invalid metadata"))},t}},{bencode:11,bitfield:13,debug:127,events:37,inherits:44,"safe-buffer":94,"simple-sha1":100}],127:[function(e,t,n){arguments[4][15][0].apply(n,arguments)},{"./debug":128,_process:69,dup:15}],128:[function(e,t,n){arguments[4][16][0].apply(n,arguments)},{dup:16,ms:60}],129:[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){if(n("noDeprecation"))return e;var r=!1;return function(){if(!r){if(n("throwDeprecation"))throw new Error(t);else n("traceDeprecation")?console.trace(t):console.warn(t);r=!0}return e.apply(this,arguments)}}}).call(this,"undefined"==typeof global?"undefined"==typeof self?"undefined"==typeof window?{}:window:self:global)},{}],130:[function(e,t){(function(n){function o(e){var t=this;a.call(t),t._tracks=[],t._fragmentSequence=1,t._file=e,t._decoder=null,t._findMoov(0)}function s(e,t){var n=this;n._entries=e,n._countName=t||"count",n._index=0,n._offset=0,n.value=n._entries[0]}function d(){return{version:0,flags:0,entries:[]}}var i=e("binary-search"),a=e("events").EventEmitter,c=e("inherits"),p=e("mp4-stream"),l=e("mp4-box-encoding"),u=e("range-slice-stream");t.exports=o,c(o,a),o.prototype._findMoov=function(e){var t=this;t._decoder&&t._decoder.destroy(),t._decoder=p.decode();var n=t._file.createReadStream({start:e});n.pipe(t._decoder),t._decoder.once("box",function(r){"moov"===r.type?t._decoder.decode(function(e){n.destroy();try{t._processMoov(e)}catch(e){e.message="Cannot parse mp4 file: "+e.message,t.emit("error",e)}}):(n.destroy(),t._findMoov(e+r.length))})},s.prototype.inc=function(){var e=this;e._offset++,e._offset>=e._entries[e._index][e._countName]&&(e._index++,e._offset=0),e.value=e._entries[e._index]},o.prototype._processMoov=function(e){var t=this,r=e.traks;t._tracks=[],t._hasVideo=!1,t._hasAudio=!1;for(var o=0;o<r.length;o++){var i=r[o],a=i.mdia.minf.stbl,c=a.stsd.entries[0],p=i.mdia.hdlr.handlerType,u,f;if("vide"===p&&"avc1"===c.type){if(t._hasVideo)continue;t._hasVideo=!0,u="avc1",c.avcC&&(u+="."+c.avcC.mimeCodec),f="video/mp4; codecs=\""+u+"\""}else if("soun"===p&&"mp4a"===c.type){if(t._hasAudio)continue;t._hasAudio=!0,u="mp4a",c.esds&&c.esds.mimeCodec&&(u+="."+c.esds.mimeCodec),f="audio/mp4; codecs=\""+u+"\""}else continue;var h=[],m=0,g=0,_=0,y=0,b=0,w=0,k=new s(a.stts.entries),x=null;a.ctts&&(x=new s(a.ctts.entries));for(var v=0;;){var S=a.stsc.entries[b],C=a.stsz.entries[m],E=k.value.duration,B=x?x.value.compositionOffset:0,I=!0;if(a.stss&&(I=a.stss.entries[v]===m+1),h.push({size:C,duration:E,dts:w,presentationOffset:B,sync:I,offset:y+a.stco.entries[_]}),m++,m>=a.stsz.entries.length)break;if(g++,y+=C,g>=S.samplesPerChunk){g=0,y=0,_++;var L=a.stsc.entries[b+1];L&&_+1>=L.firstChunk&&b++}w+=E,k.inc(),x&&x.inc(),I&&v++}i.mdia.mdhd.duration=0,i.tkhd.duration=0;var T=S.sampleDescriptionId,A={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:d(),ctts:d(),stsc:d(),stsz:d(),stco:d(),stss:d()}}}}],mvex:{mehd:{fragmentDuration:e.mvhd.duration},trexs:[{trackId:i.tkhd.trackId,defaultSampleDescriptionIndex:T,defaultSampleDuration:0,defaultSampleSize:0,defaultSampleFlags:0}]}};t._tracks.push({trackId:i.tkhd.trackId,timeScale:i.mdia.mdhd.timeScale,samples:h,currSample:null,currTime:null,moov:A,mime:f})}if(0===t._tracks.length)return void t.emit("error",new Error("no playable tracks"));e.mvhd.duration=0,t._ftyp={type:"ftyp",brand:"iso5",brandVersion:0,compatibleBrands:["iso5"]};var U=l.encode(t._ftyp),R=t._tracks.map(function(e){var t=l.encode(e.moov);return{mime:e.mime,init:n.concat([U,t])}});t.emit("ready",R)},o.prototype.seek=function(e){var t=this;if(!t._tracks)throw new Error("Not ready yet; wait for 'ready' event");t._fileStream&&(t._fileStream.destroy(),t._fileStream=null);var n=-1;if(t._tracks.map(function(r,o){function s(e){i.destroyed||i.box(e.moof,function(n){if(n)return t.emit("error",n);if(!i.destroyed){var d=r.inStream.slice(e.ranges);d.pipe(i.mediaData(e.length,function(e){if(e)return t.emit("error",e);if(!i.destroyed){var n=t._generateFragment(o);return n?void s(n):i.finalize()}}))}})}r.outStream&&r.outStream.destroy(),r.inStream&&(r.inStream.destroy(),r.inStream=null);var i=r.outStream=p.encode(),d=t._generateFragment(o,e);return d?void((-1==n||d.ranges[0].start<n)&&(n=d.ranges[0].start),s(d)):i.finalize()}),0<=n){var r=t._fileStream=t._file.createReadStream({start:n});t._tracks.forEach(function(e){e.inStream=new u(n,{highWaterMark:1e7}),r.pipe(e.inStream)})}return t._tracks.map(function(e){return e.outStream})},o.prototype._findSampleBefore=function(e,t){var n=this,o=n._tracks[e],s=r(o.timeScale*t),d=i(o.samples,s,function(e,n){var t=e.dts+e.presentationOffset;return t-n});for(-1===d?d=0:0>d&&(d=-d-2);!o.samples[d].sync;)d--;return d};o.prototype._generateFragment=function(e,t){var n=this,r=n._tracks[e],o;if(o=void 0===t?r.currSample:n._findSampleBefore(e,t),o>=r.samples.length)return null;for(var s=r.samples[o].dts,i=0,d=[],a=o,c;a<r.samples.length&&(c=r.samples[a],!(c.sync&&c.dts-s>=r.timeScale*1));a++){i+=c.size;var p=d.length-1;0>p||d[p].end!==c.offset?d.push({start:c.offset,end:c.offset+c.size}):d[p].end+=c.size}return r.currSample=a,{moof:n._generateMoof(e,o,a),ranges:d,length:i}},o.prototype._generateMoof=function(e,t,n){for(var r=this,o=r._tracks[e],s=[],i=t,d;i<n;i++)d=o.samples[i],s.push({sampleDuration:d.duration,sampleSize:d.size,sampleFlags:d.sync?33554432:16842752,sampleCompositionTimeOffset:d.presentationOffset});var a={type:"moof",mfhd:{sequenceNumber:r._fragmentSequence++},trafs:[{tfhd:{flags:131072,trackId:o.trackId},tfdt:{baseMediaDecodeTime:o.samples[t].dts},trun:{flags:3841,dataOffset:8,entries:s}}]};return a.trafs[0].trun.dataOffset+=l.encodingLength(a),a}}).call(this,e("buffer").Buffer)},{"binary-search":12,buffer:27,events:37,inherits:44,"mp4-box-encoding":56,"mp4-stream":59,"range-slice-stream":77}],131:[function(e,t){function n(e,t,o){var s=this;return this instanceof n?void(o=o||{},s.detailedError=null,s._elem=t,s._elemWrapper=new r(t),s._waitingFired=!1,s._trackMeta=null,s._file=e,s._tracks=null,"none"!==s._elem.preload&&s._createMuxer(),s._onError=function(){s.detailedError=s._elemWrapper.detailedError,s.destroy()},s._onWaiting=function(){s._waitingFired=!0,s._muxer?s._tracks&&s._pump():s._createMuxer()},s._elem.addEventListener("waiting",s._onWaiting),s._elem.addEventListener("error",s._onError)):new n(e,t,o)}var r=e("mediasource"),o=e("pump"),s=e("./mp4-remuxer");t.exports=n,n.prototype._createMuxer=function(){var e=this;e._muxer=new s(e._file),e._muxer.on("ready",function(t){e._tracks=t.map(function(t){var n=e._elemWrapper.createWriteStream(t.mime);n.on("error",function(t){e._elemWrapper.error(t)});var r={muxed:null,mediaSource:n,initFlushed:!1,onInitFlushed:null};return n.write(t.init,function(e){r.initFlushed=!0,r.onInitFlushed&&r.onInitFlushed(e)}),r}),(e._waitingFired||"auto"===e._elem.preload)&&e._pump()}),e._muxer.on("error",function(t){e._elemWrapper.error(t)})},n.prototype._pump=function(){var e=this,t=e._muxer.seek(e._elem.currentTime,!e._tracks);e._tracks.forEach(function(n,r){var s=function(){n.muxed&&(n.muxed.destroy(),n.mediaSource=e._elemWrapper.createWriteStream(n.mediaSource),n.mediaSource.on("error",function(t){e._elemWrapper.error(t)})),n.muxed=t[r],o(n.muxed,n.mediaSource)};n.initFlushed?s():n.onInitFlushed=function(t){return t?void e._elemWrapper.error(t):void s()}})},n.prototype.destroy=function(){var e=this;e.destroyed||(e.destroyed=!0,e._elem.removeEventListener("waiting",e._onWaiting),e._elem.removeEventListener("error",e._onError),e._tracks&&e._tracks.forEach(function(e){e.muxed.destroy()}),e._elem.src="")}},{"./mp4-remuxer":130,mediasource:52,pump:70}],132:[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},{}],133:[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},{}],134:[function(e,t){t.exports=function(e){for(var t=1,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},{}],135:[function(e,t){t.exports=function e(t,n,r){return void 0===n?function(n,r){return e(t,n,r)}:(void 0===r&&(r="0"),t-=n.toString().length,0<t?Array(t+(/\./.test(n)?2:1)).join(r)+n:n+"")}},{}],136:[function(e,t){t.exports={version:"0.98.20"}},{}],137:[function(e,t){(function(n,r){function o(e){function t(){s.destroyed||(s.ready=!0,s.emit("ready"))}var s=this;return s instanceof o?void(u.call(s),!e&&(e={}),s.peerId="string"==typeof e.peerId?e.peerId:d.isBuffer(e.peerId)?e.peerId.toString("hex"):d.from(B+w(9).toString("base64")).toString("hex"),s.peerIdBuffer=d.from(s.peerId,"hex"),s.nodeId="string"==typeof e.nodeId?e.nodeId:d.isBuffer(e.nodeId)?e.nodeId.toString("hex"):w(20).toString("hex"),s.nodeIdBuffer=d.from(s.nodeId,"hex"),s._debugId=s.peerId.toString("hex").substring(0,7),s.destroyed=!1,s.listening=!1,s.torrentPort=e.torrentPort||0,s.dhtPort=e.dhtPort||0,s.tracker=e.tracker===void 0?{}:e.tracker,s.torrents=[],s.maxConns=+e.maxConns||55,s._debug("new webtorrent (peerId %s, nodeId %s, port %s)",s.peerId,s.nodeId,s.torrentPort),s.tracker&&("object"!=typeof s.tracker&&(s.tracker={}),e.rtcConfig&&(console.warn("WebTorrent: opts.rtcConfig is deprecated. Use opts.tracker.rtcConfig instead"),s.tracker.rtcConfig=e.rtcConfig),e.wrtc&&(console.warn("WebTorrent: opts.wrtc is deprecated. Use opts.tracker.wrtc instead"),s.tracker.wrtc=e.wrtc),r.WRTC&&!s.tracker.wrtc&&(s.tracker.wrtc=r.WRTC)),"function"==typeof v?s._tcpPool=new v(s):n.nextTick(function(){s._onListening()}),s._downloadSpeed=k(),s._uploadSpeed=k(),!1!==e.dht&&"function"==typeof l?(s.dht=new l(f({nodeId:s.nodeId},e.dht)),s.dht.once("error",function(e){s._destroy(e)}),s.dht.once("listening",function(){var e=s.dht.address();e&&(s.dhtPort=e.port)}),s.dht.setMaxListeners(0),s.dht.listen(s.dhtPort)):s.dht=!1,s.enableWebSeeds=!1!==e.webSeeds,"function"==typeof m&&null!=e.blocklist?m(e.blocklist,{headers:{"user-agent":"WebTorrent/"+C+" (https://webtorrent.io)"}},function(e,n){return e?s.error("Failed to load blocklist: "+e.message):void(s.blocked=n,t())}):n.nextTick(t)):new o(e)}function s(e){return"object"==typeof e&&null!=e&&"function"==typeof e.pipe}function i(e){return"undefined"!=typeof FileList&&e instanceof FileList}t.exports=o;var d=e("safe-buffer").Buffer,a=e("simple-concat"),c=e("create-torrent"),p=e("debug")("webtorrent"),l=e("bittorrent-dht/client"),u=e("events").EventEmitter,f=e("xtend"),h=e("inherits"),m=e("load-ip-set"),g=e("run-parallel"),_=e("parse-torrent"),y=e("path"),b=e("simple-peer"),w=e("randombytes"),k=e("speedometer"),x=e("zero-fill"),v=e("./lib/tcp-pool"),S=e("./lib/torrent"),C=e("./package.json").version,E=C.match(/([0-9]+)/g).slice(0,2).map(function(e){return x(2,e)}).join(""),B="-WW"+E+"-";h(o,u),o.WEBRTC_SUPPORT=b.WEBRTC_SUPPORT,Object.defineProperty(o.prototype,"downloadSpeed",{get:function(){return this._downloadSpeed()}}),Object.defineProperty(o.prototype,"uploadSpeed",{get:function(){return this._uploadSpeed()}}),Object.defineProperty(o.prototype,"progress",{get:function(){var e=this.torrents.filter(function(e){return 1!==e.progress}),t=e.reduce(function(e,t){return e+t.downloaded},0),n=e.reduce(function(e,t){return e+(t.length||0)},0)||1;return t/n}}),Object.defineProperty(o.prototype,"ratio",{get:function(){var e=this.torrents.reduce(function(e,t){return e+t.uploaded},0),t=this.torrents.reduce(function(e,t){return e+t.received},0)||1;return e/t}}),o.prototype.get=function(e){var t=this,n=t.torrents.length,r,o;if(e instanceof S){for(r=0;r<n;r++)if(o=t.torrents[r],o===e)return o;}else{var s;try{s=_(e)}catch(e){}if(!s)return null;if(!s.infoHash)throw new Error("Invalid torrent identifier");for(r=0;r<n;r++)if(o=t.torrents[r],o.infoHash===s.infoHash)return o}return null},o.prototype.download=function(e,t,n){return console.warn("WebTorrent: client.download() is deprecated. Use client.add() instead"),this.add(e,t,n)},o.prototype.add=function(e,t,n){function r(){if(!d.destroyed)for(var e=0,n=d.torrents.length,r;e<n;e++)if(r=d.torrents[e],r.infoHash===a.infoHash&&r!==a)return void a._destroy(new Error("Cannot add duplicate torrent "+a.infoHash))}function o(){d.destroyed||("function"==typeof n&&n(a),d.emit("torrent",a))}function s(){a.removeListener("_infoHash",r),a.removeListener("ready",o),a.removeListener("close",s)}var d=this;if(d.destroyed)throw new Error("client is destroyed");if("function"==typeof t)return d.add(e,null,t);d._debug("add"),t=t?f(t):{};var a=new S(e,d,t);return d.torrents.push(a),a.once("_infoHash",r),a.once("ready",o),a.once("close",s),a},o.prototype.seed=function(e,t,n){function r(e){o._debug("on seed"),"function"==typeof n&&n(e),e.emit("seed"),o.emit("seed",e)}var o=this;if(o.destroyed)throw new Error("client is destroyed");if("function"==typeof t)return o.seed(e,null,t);o._debug("seed"),t=t?f(t):{},"string"==typeof e&&(t.path=y.dirname(e)),t.createdBy||(t.createdBy="WebTorrent/"+E);var d=o.add(null,t,function(e){var t=[function(t){e.load(p,t)}];o.dht&&t.push(function(t){e.once("dhtAnnounce",t)}),g(t,function(t){return o.destroyed?void 0:t?e._destroy(t):void r(e)})}),p;return i(e)&&(e=Array.prototype.slice.call(e)),Array.isArray(e)||(e=[e]),g(e.map(function(e){return function(t){s(e)?a(e,t):t(null,e)}}),function(e,n){return o.destroyed?void 0:e?d._destroy(e):void c.parseInput(n,t,function(e,r){return o.destroyed?void 0:e?d._destroy(e):void(p=r.map(function(e){return e.getStream}),c(n,t,function(e,t){if(!o.destroyed){if(e)return d._destroy(e);var n=o.get(t);n?d._destroy(new Error("Cannot add duplicate torrent "+n.infoHash)):d._onTorrentId(t)}}))})}),d},o.prototype.remove=function(e,t){this._debug("remove");var n=this.get(e);if(!n)throw new Error("No torrent with id "+e);this._remove(e,t)},o.prototype._remove=function(e,t){var n=this.get(e);n&&(this.torrents.splice(this.torrents.indexOf(n),1),n.destroy(t))},o.prototype.address=function(){return this.listening?this._tcpPool?this._tcpPool.server.address():{address:"0.0.0.0",family:"IPv4",port:0}:null},o.prototype.destroy=function(e){if(this.destroyed)throw new Error("client already destroyed");this._destroy(null,e)},o.prototype._destroy=function(e,t){var n=this;n._debug("client destroy"),n.destroyed=!0;var r=n.torrents.map(function(e){return function(t){e.destroy(t)}});n._tcpPool&&r.push(function(e){n._tcpPool.destroy(e)}),n.dht&&r.push(function(e){n.dht.destroy(e)}),g(r,t),e&&n.emit("error",e),n.torrents=[],n._tcpPool=null,n.dht=null},o.prototype._onListening=function(){if(this._debug("listening"),this.listening=!0,this._tcpPool){var e=this._tcpPool.server.address();e&&(this.torrentPort=e.port)}this.emit("listening")},o.prototype._debug=function(){var e=[].slice.call(arguments);e[0]="["+this._debugId+"] "+e[0],p.apply(null,e)}}).call(this,e("_process"),"undefined"==typeof global?"undefined"==typeof self?"undefined"==typeof window?{}:window:self:global)},{"./lib/tcp-pool":25,"./lib/torrent":5,"./package.json":136,_process:69,"bittorrent-dht/client":25,"create-torrent":32,debug:33,events:37,inherits:44,"load-ip-set":25,"parse-torrent":65,path:66,randombytes:76,"run-parallel":92,"safe-buffer":94,"simple-concat":95,"simple-peer":97,speedometer:104,xtend:133,"zero-fill":135}]},{},[137])(137)});