(function(e){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=e()}else if(typeof define==="function"&&define.amd){define([],e)}else{var t;if(typeof window!=="undefined"){t=window}else if(typeof global!=="undefined"){t=global}else if(typeof self!=="undefined"){t=self}else{t=this}t.WebTorrent=e()}})(function(){var e,t,n;return function r(e,t,n){function i(o,s){if(!t[o]){if(!e[o]){var f=typeof require=="function"&&require;if(!s&&f)return f(o,!0);if(a)return a(o,!0);var c=new Error("Cannot find module '"+o+"'");throw c.code="MODULE_NOT_FOUND",c}var u=t[o]={exports:{}};e[o][0].call(u.exports,function(t){var n=e[o][1][t];return i(n?n:t)},u,u.exports,r,e,t,n)}return t[o].exports}var a=typeof require=="function"&&require;for(var o=0;o<n.length;o++)i(n[o]);return i}({1:[function(e,t,n){(function(n,r,i){t.exports=x;var a=e("create-torrent");var o=e("debug")("webtorrent");var s=e("bittorrent-dht/client");var f=e("events").EventEmitter;var c=e("xtend");var u=e("hat");var l=e("inherits");var p=e("load-ip-set");var d=e("run-parallel");var h=e("parse-torrent");var m=e("speedometer");var v=e("zero-fill");var g=e("./lib/fs-storage");var y=e("./lib/storage");var b=e("./lib/torrent");l(x,f);var w=e("./package.json").version;var _=w.match(/([0-9]+)/g).slice(0,2).map(v(2)).join("");function x(e){var t=this;if(!(t instanceof x))return new x(e);if(!e)e={};f.call(t);if(!o.enabled)t.setMaxListeners(0);t.destroyed=false;t.torrentPort=e.torrentPort||0;t.tracker=e.tracker!==undefined?e.tracker:true;t._rtcConfig=e.rtcConfig;t._wrtc=e.wrtc||r.WRTC;t.torrents=[];t.downloadSpeed=m();t.uploadSpeed=m();t.storage=typeof e.storage==="function"?e.storage:e.storage!==false&&typeof g==="function"?g:y;t.peerId=e.peerId===undefined?new i("-WW"+_+"-"+u(48),"utf8"):typeof e.peerId==="string"?new i(e.peerId,"hex"):e.peerId;t.peerIdHex=t.peerId.toString("hex");t.nodeId=e.nodeId===undefined?new i(u(160),"hex"):typeof e.nodeId==="string"?new i(e.nodeId,"hex"):e.nodeId;t.nodeIdHex=t.nodeId.toString("hex");if(e.dht!==false&&typeof s==="function"){t.dht=new s(c({nodeId:t.nodeId},e.dht));t.dht.listen(e.dhtPort)}o("new webtorrent (peerId %s, nodeId %s)",t.peerIdHex,t.nodeIdHex);if(typeof p==="function"){p(e.blocklist,{headers:{"user-agent":"WebTorrent (http://webtorrent.io)"}},function(e,n){if(e)return t.error("failed to load blocklist: "+e.message);t.blocked=n;a()})}else n.nextTick(a);function a(){if(t.destroyed)return;t.ready=true;t.emit("ready")}}Object.defineProperty(x.prototype,"ratio",{get:function(){var e=this;var t=e.torrents.reduce(function(e,t){return e+t.uploaded},0);var n=e.torrents.reduce(function(e,t){return e+t.downloaded},0)||1;return t/n}});x.prototype.get=function(e){var t=this;if(e instanceof b)return e;var n;try{n=h(e)}catch(r){return null}if(!n.infoHash)throw new Error("Invalid torrent identifier");for(var i=0,a=t.torrents.length;i<a;i++){var o=t.torrents[i];if(o.infoHash===n.infoHash)return o}return null};x.prototype.add=x.prototype.download=function(e,t,r){var i=this;if(i.destroyed)throw new Error("client is destroyed");o("add");if(typeof t==="function"){r=t;t={}}if(!t)t={};if(!t.storage)t.storage=i.storage;t.client=i;var a=i.get(e);function s(){o("on torrent");if(typeof r==="function")r(a)}if(a){if(a.ready)n.nextTick(s);else a.on("ready",s)}else{a=new b(e,t);i.torrents.push(a);a.on("error",function(e){i.emit("error",e,a);i.remove(a)});a.on("listening",function(e){i.emit("listening",e,a)});a.on("ready",function(){s();i.emit("torrent",a)})}return a};x.prototype.seed=function(e,t,n){var r=this;if(r.destroyed)throw new Error("client is destroyed");o("seed");if(typeof t==="function"){n=t;t={}}if(!t)t={};t.noVerify=true;t.createdBy="WebTorrent/"+w;var i;var s=r.add(undefined,t,function(e){var t=[function(t){e.storage.load(i,t)}];if(r.dht){t.push(function(t){e.on("dhtAnnounce",t)})}d(t,function(t){if(t)return r.emit("error",t);f();r.emit("seed",e)})});a.parseInput(e,t,function(n,o){if(n)return r.emit("error",n);i=o.map(function(e){return e.getStream});a(e,t,function(e,t){if(e)return r.emit("error",e);if(r.destroyed)return;var n=r.get(t);if(n){s.destroy();f();return}else{s._onTorrentId(t)}})});function f(){o("on seed");if(typeof n==="function")n(s)}return s};x.prototype.remove=function(e,t){var n=this;var r=n.get(e);if(!r)throw new Error("No torrent with id "+e);o("remove");n.torrents.splice(n.torrents.indexOf(r),1);r.destroy(t)};x.prototype.address=function(){var e=this;return{address:"0.0.0.0",family:"IPv4",port:e.torrentPort}};x.prototype.destroy=function(e){var t=this;t.destroyed=true;o("destroy");var n=t.torrents.map(function(e){return function(n){t.remove(e,n)}});if(t.dht){n.push(function(e){t.dht.destroy(e)})}d(n,e)}}).call(this,e("_process"),typeof global!=="undefined"?global:typeof self!=="undefined"?self:typeof window!=="undefined"?window:{},e("buffer").Buffer)},{"./lib/fs-storage":46,"./lib/storage":7,"./lib/torrent":8,"./package.json":209,_process:58,"bittorrent-dht/client":46,buffer:47,"create-torrent":79,debug:117,events:51,hat:124,inherits:125,"load-ip-set":46,"parse-torrent":132,"run-parallel":152,speedometer:158,xtend:207,"zero-fill":208}],2:[function(e,t,n){t.exports=f;var r=e("debug")("webtorrent:file-stream");var i=e("inherits");var a=e("path");var o=e("stream");var s=e("./media-stream");i(f,o.Readable);function f(e,t){var n=this;if(!(n instanceof f))return new f(e,t);o.Readable.call(n,t);r("new filestream %s",JSON.stringify(t));if(!t)t={};if(!t.start)t.start=0;if(!t.end)t.end=e.length-1;n.destroyed=false;n.length=t.end-t.start+1;var i=t.start+e.offset;var s=t.pieceLength;n.startPiece=i/s|0;n.endPiece=(t.end+e.offset)/s|0;n._extname=a.extname(e.name).toLowerCase();n._storage=e.storage;n._piece=n.startPiece;n._missing=n.length;n._reading=false;n._notifying=false;n._criticalLength=Math.min(1024*1024/s|0,2);n._offset=i-n.startPiece*s}f.prototype._read=function(){var e=this;r("_read");if(e._reading)return;e._reading=true;e.notify()};f.prototype.notify=function(){var e=this;r("notify");if(!e._reading||e._missing===0)return;if(!e._storage.bitfield.get(e._piece)){return e._storage.emit("critical",e._piece,e._piece+e._criticalLength)}if(e._notifying)return;e._notifying=true;var t=e._piece;r("before read %s",t);e._storage.read(e._piece++,function(n,i){r("after read %s (length %s) (err %s)",t,i.length,n&&n.message);e._notifying=false;if(e.destroyed)return;if(n){e._storage.emit("error",n);return e.destroy(n)}if(e._offset){i=i.slice(e._offset);e._offset=0}if(e._missing<i.length){i=i.slice(0,e._missing)}e._missing-=i.length;r("pushing buffer of length %s",i.length);e._reading=false;e.push(i);if(e._missing===0)e.push(null)})};f.prototype.pipe=function(e){var t=this;var n=o.Readable.prototype.pipe;if(e&&(e.nodeName==="VIDEO"||e.nodeName==="AUDIO")){var r={".webm":'video/webm; codecs="vorbis,vp8"',".mp4":'video/mp4; codecs="avc1.42c01e,mp4a.40.2"',".mp3":"audio/mpeg"}[t._extname];return n.call(t,new s(e,{type:r}))}else{return n.call(t,e)}};f.prototype.destroy=function(){var e=this;if(e.destroyed)return;e.destroyed=true;e._storage.emit("deselect",e.startPiece,e.endPiece,true)}},{"./media-stream":3,debug:117,inherits:125,path:57,stream:74}],3:[function(e,t,n){t.exports=f;var r=e("debug")("webtorrent:media-stream");var i=e("inherits");var a=e("once");var o=e("stream");var s=typeof window!=="undefined"&&window.MediaSource;i(f,o.Writable);function f(e,t){var n=this;if(!(n instanceof f))return new f(e,t);o.Writable.call(n,t);if(!s)throw new Error("web browser lacks MediaSource support");n.media=e;t=t||{};t.type=t.type||'video/webm; codecs="vorbis,vp8"';r("new mediastream %s %s",e,JSON.stringify(t));n._mediaSource=new s;n._sourceBuffer=null;n._cb=null;n.media.src=window.URL.createObjectURL(n._mediaSource);var i=a(function(){n._sourceBuffer=n._mediaSource.addSourceBuffer(t.type);n._sourceBuffer.addEventListener("updateend",n._flow.bind(n));n._flow()});n._mediaSource.addEventListener("webkitsourceopen",i,false);n._mediaSource.addEventListener("sourceopen",i,false);n.on("finish",function(){r("finish");n._mediaSource.endOfStream()});window.vs=n}f.prototype._write=function(e,t,n){var i=this;if(!i._sourceBuffer){i._cb=function(r){if(r)return n(r);i._write(e,t,n)};return}if(i._sourceBuffer.updating){return n(new Error("Cannot append buffer while source buffer updating"))}i._sourceBuffer.appendBuffer(e);r("appendBuffer %s",e.length);i._cb=n};f.prototype._flow=function(){var e=this;r("flow");if(e._cb){e._cb(null)}}},{debug:117,inherits:125,once:131,stream:74}],4:[function(e,t,n){t.exports={".aac":"audio/aac",".css":"text/css",".html":"text/html",".js":"application/javascript",".m4a":"audio/mp4",".md":"text/x-markdown",".mp3":"audio/mpeg",".mp4":"video/mp4",".oga":"audio/ogg",".ogg":"audio/ogg",".pdf":"application/pdf",".txt":"text/plain",".wav":"audio/wav",".webm":"video/webm"}},{}],5:[function(e,t,n){t.exports=r;function r(e,t){var n=this;n.swarm=e;n.numPieces=t;function r(e){e.on("have",function(e){n.pieces[e]++});e.on("bitfield",n.recalculate.bind(n));e.on("close",function(){for(var t=0;t<n.numPieces;++t){n.pieces[t]-=e.peerPieces.get(t)}})}n.swarm.wires.forEach(r);n.swarm.on("wire",function(e){n.recalculate();r(e)});n.recalculate()}r.prototype.recalculate=function(){var e=this;e.pieces=[];for(var t=0;t<e.numPieces;++t){e.pieces[t]=0}e.swarm.wires.forEach(function(t){for(var n=0;n<e.numPieces;++n){e.pieces[n]+=t.peerPieces.get(n)}})};r.prototype.getRarestPiece=function(e){var t=this;var n=[];var r=Infinity;e=e||function(){return true};for(var i=0;i<t.numPieces;++i){if(!e(i))continue;var a=t.pieces[i];if(a===r){n.push(i)}else if(a<r){n=[i];r=a}}if(n.length>0){return n[Math.random()*n.length|0]}else{return-1}}},{}],6:[function(e,t,n){var r=e("debug")("webtorrent:server");var i=e("http");var a=e("mime");var o=e("pump");var s=e("range-parser");var f=e("url");t.exports=function c(e,t){var n=i.createServer(t);n.on("connection",function(e){e.setTimeout(36e6)});n.on("request",function(t,n){r("onRequest");if(t.method==="OPTIONS"&&t.headers["access-control-request-headers"]){n.setHeader("Access-Control-Allow-Methods","POST, GET, OPTIONS");n.setHeader("Access-Control-Allow-Headers",t.headers["access-control-request-headers"]);n.setHeader("Access-Control-Max-Age","1728000");return n.end()}if(t.headers.origin){n.setHeader("Access-Control-Allow-Origin",t.headers.origin)}var i=f.parse(t.url).pathname;if(i==="/favicon.ico")return n.end();if(e.ready)c();else e.once("ready",c);function c(){if(i==="/"){n.setHeader("Content-Type","text/html");var f=e.files.map(function(e,t){return'<li><a href="/'+t+'">'+e.name+"</a></li>"}).join("<br>");return n.end("<h1>WebTorrent</h1><ol>"+f+"</ol>")}var c=Number(i.slice(1));if(Number.isNaN(c)||c>=e.files.length){n.statusCode=404;return n.end()}var u=e.files[c];n.setHeader("Accept-Ranges","bytes");n.setHeader("Content-Type",a.lookup(u.name));n.statusCode=200;n.setHeader("transferMode.dlna.org","Streaming");n.setHeader("contentFeatures.dlna.org","DLNA.ORG_OP=01;DLNA.ORG_CI=0;DLNA.ORG_FLAGS=01700000000000000000000000000000");var l;if(t.headers.range){n.statusCode=206;l=s(u.length,t.headers.range)[0];r("range %s",JSON.stringify(l));n.setHeader("Content-Range","bytes "+l.start+"-"+l.end+"/"+u.length);n.setHeader("Content-Length",l.end-l.start+1)}else{n.setHeader("Content-Length",u.length)}if(t.method==="HEAD")n.end();o(u.createReadStream(l),n)}});return n}},{debug:117,http:52,mime:126,pump:149,"range-parser":150,url:76}],7:[function(e,t,n){(function(n,r){t.exports=E;var i=e("bitfield");var a=e("block-stream2");var o=e("debug")("webtorrent:storage");var s=e("dezalgo");var f=e("end-of-stream");var c=e("events").EventEmitter;var u=e("./file-stream");var l=e("inherits");var p=e("./mime.json");var d=e("multistream");var h=e("once");var m=e("path");var v=e("simple-sha1");var g=16*1024;var y=0;var b=1;var w=2;function _(){}l(x,c);function x(e,t,n,r){var i=this;c.call(i);if(!o.enabled)i.setMaxListeners(0);i.index=e;i.hash=t;i.noVerify=!!r;if(typeof n==="number"){i.buffer=null;i.length=n}else{i.buffer=n;i.length=n.length}i._reset()}x.prototype.readBlock=function(e,t,n){var r=this;n=s(n);if(!r.buffer||!r._verifyOffset(e)){return n(new Error("invalid block offset "+e))}n(null,r.buffer.slice(e,e+t))};x.prototype.writeBlock=function(e,t,n){var r=this;n=s(n);if(!r._verifyOffset(e)||!r._verifyBlock(e,t)){return n(new Error("invalid block "+e+":"+t.length))}r._lazyAllocBuffer();var i=e/g;if(r.blocks[i]===w){return n(null)}t.copy(r.buffer,e);r.blocks[i]=w;r.blocksWritten+=1;if(r.blocksWritten===r.blocks.length){r.verify()}n(null)};x.prototype.reserveBlock=function(e){var t=this;var n=t.blocks.length;for(var r=0;r<n;r++){if(t.blocks[r]&&!e||t.blocks[r]===w){continue}t.blocks[r]=b;return{offset:r*g,length:r===n-1?t.length-r*g:g}}return null};x.prototype.cancelBlock=function(e){var t=this;if(!t._verifyOffset(e)){return false}var n=e/g;if(t.blocks[n]===b){t.blocks[n]=y}return true};x.prototype._reset=function(){var e=this;e.verified=false;e.blocks=new r(Math.ceil(e.length/g));e.blocks.fill(0);e.blocksWritten=0};x.prototype.verify=function(e){var t=this;e=e||t.buffer;if(t.verified||!e){return}if(t.noVerify){t.verified=true;n();return}v(e,function(e){t.verified=e===t.hash;n()});function n(){if(t.verified){t.emit("done")}else{t.emit("warning",new Error("piece "+t.index+" failed verification"));t._reset()}}};x.prototype._verifyOffset=function(e){var t=this;if(e%g===0){return true}else{t.emit("warning",new Error("invalid block offset "+e+", not multiple of "+g));return false}};x.prototype._verifyBlock=function(e,t){var n=this;if(t.length===g){return true}else if(t.length===n.length-e&&n.length-e<g){return true}else{n.emit("warning",new Error("invalid block size "+t.length));return false}};x.prototype._lazyAllocBuffer=function(){var e=this;if(!e.buffer){e.buffer=new r(e.length)}};l(k,c);function k(e,t,n,r){var i=this;c.call(i);if(!o.enabled)i.setMaxListeners(0);i.storage=e;i.name=t.name;i.path=t.path;i.length=t.length;i.offset=t.offset;i.pieces=n;i.pieceLength=r;i.done=false;i.pieces.forEach(function(e){e.on("done",function(){i._checkDone()})});i._checkDone()}k.prototype.select=function(){var e=this;if(e.pieces.length>0){var t=e.pieces[0].index;var n=e.pieces[e.pieces.length-1].index;e.storage.emit("select",t,n,false)}};k.prototype.deselect=function(){var e=this;if(e.pieces.length>0){var t=e.pieces[0].index;var n=e.pieces[e.pieces.length-1].index;e.storage.emit("deselect",t,n,false)}};k.prototype.createReadStream=function(e){var t=this;if(!e)e={};if(e.pieceLength==null)e.pieceLength=t.pieceLength;var n=new u(t,e);t.storage.emit("select",n.startPiece,n.endPiece,true,n.notify.bind(n));f(n,function(){t.storage.emit("deselect",n.startPiece,n.endPiece,true)});return n};k.prototype.getBlobURL=function(e){var t=this;if(typeof window==="undefined")throw new Error("browser-only method");t.getBuffer(function(n,r){if(n)return e(n);var i=p[m.extname(t.name).toLowerCase()];var a=i?new window.Blob([r],{type:i}):new window.Blob([r]);var o=window.URL.createObjectURL(a);e(null,o)})};k.prototype.getBuffer=function(e){var t=this;e=s(h(e));var n;if(t.storage.buffer){var i=function(){n=t.storage.buffer.slice(t.offset,t.offset+t.length);e(null,n)};if(t.done)i();else t.once("done",i)}else{n=new r(t.length);var a=0;t.createReadStream().on("data",function(e){e.copy(n,a);a+=e.length}).on("end",function(){e(null,n)}).on("error",e)}};k.prototype._checkDone=function(){var e=this;e.done=e.pieces.every(function(e){return e.verified});if(e.done){n.nextTick(function(){e.emit("done")})}};l(E,c);function E(e,t){var n=this;c.call(n);if(!o.enabled)n.setMaxListeners(0);if(!t)t={};n.bitfield=new i(e.pieces.length);n.done=false;n.closed=false;n.readonly=true;if(!t.nobuffer){n.buffer=new r(e.length)}var a=n.pieceLength=e.pieceLength;var s=e.lastPieceLength;var f=e.pieces.length;n.pieces=e.pieces.map(function(e,r){var i=r*a;var o=i+(r===f-1?s:a);var c=n.buffer?n.buffer.slice(i,o):o-i;var u=new x(r,e,c,!!t.noVerify);u.on("done",n._onPieceDone.bind(n,u));return u});n.files=e.files.map(function(e){var t=e.offset;var r=t+e.length-1;var i=t/a|0;var o=r/a|0;var s=n.pieces.slice(i,o+1);var f=new k(n,e,s,a);f.on("done",n._onFileDone.bind(n,f));return f})}E.BLOCK_LENGTH=g;E.prototype.load=function(e,t){var n=this;if(!Array.isArray(e))e=[e];t=h(t||function(){});var r=0;var i=new d(e);var o=new a(n.pieceLength,{zeroPadding:false});i.on("error",f);n.once("done",c);i.pipe(o).on("data",s).on("error",f);function s(e){var t=r;r+=1;var i=0;var o=new a(g,{zeroPadding:false});o.on("data",s);o.on("end",f);function s(e){var r=i*g;i+=1;n.writeBlock(t,r,e)}function f(){c()}function c(){o.removeListener("data",s);o.removeListener("end",f)}o.end(e)}function f(e){u();t(e)}function c(){u();t(null)}function u(){i.removeListener("error",f);o.removeListener("data",s);o.removeListener("error",f);n.removeListener("done",c)}};Object.defineProperty(E.prototype,"downloaded",{get:function(){var e=this;return e.pieces.reduce(function(e,t){return e+(t.verified?t.length:t.blocksWritten*g)},0)}});Object.defineProperty(E.prototype,"numMissing",{get:function(){var e=this;var t=e.pieces.length;for(var n=0,r=e.pieces.length;n<r;n++){t-=e.bitfield.get(n)}return t}});E.prototype.readBlock=function(e,t,n,r){var i=this;r=s(r);var a=i.pieces[e];if(!a)return r(new Error("invalid piece index "+e));a.readBlock(t,n,r)};E.prototype.writeBlock=function(e,t,n,r){var i=this;if(!r)r=_;r=s(r);if(i.readonly)return r(new Error("cannot write to readonly storage"));var a=i.pieces[e];if(!a)return r(new Error("invalid piece index "+e));a.writeBlock(t,n,r)};E.prototype.read=function(e,t,n,i){var a=this;if(typeof t==="function"){i=n;n=t;t=null}n=s(n);var o=a.pieces[e];if(!o){return n(new Error("invalid piece index "+e))}if(!o.verified&&!i){return n(new Error("Storage.read called on incomplete piece "+e))}var f=0;var c=o.length;if(t){f=t.offset||0;c=t.length||c}if(o.buffer){return n(null,o.buffer.slice(f,f+c))}var u=[];function l(){if(c<=0)return n(null,r.concat(u));var t=f;var i=Math.min(g,c);f+=i;c-=i;a.readBlock(e,t,i,function(e,t){if(e)return n(e);u.push(t);l()})}l()};E.prototype.reserveBlock=function(e,t){var n=this;var r=n.pieces[e];if(!r)return null;return r.reserveBlock(t)};E.prototype.cancelBlock=function(e,t){var n=this;var r=n.pieces[e];if(!r)return false;return r.cancelBlock(t)};E.prototype.remove=function(e){if(e)s(e)(null)};E.prototype.close=function(e){var t=this;t.closed=true;if(e)s(e)(null)};E.prototype._onPieceDone=function(e){var t=this;t.bitfield.set(e.index);o("piece done "+e.index+" ("+t.numMissing+" still missing)");t.emit("piece",e)};E.prototype._onFileDone=function(e){var t=this;o("file done "+e.name);t.emit("file",e);t._checkDone()};E.prototype._checkDone=function(){var e=this;if(!e.done&&e.files.every(function(e){return e.done})){e.done=true;e.emit("done")}}}).call(this,e("_process"),e("buffer").Buffer)},{"./file-stream":2,"./mime.json":4,_process:58,bitfield:10,"block-stream2":34,buffer:47,debug:117,dezalgo:120,"end-of-stream":123,events:51,inherits:125,multistream:128,once:131,path:57,"simple-sha1":156}],8:[function(e,t,n){(function(n,r){t.exports=I;var i=e("addr-to-ip-port");var a=e("create-torrent");var o=e("debug")("webtorrent:torrent");var s=e("torrent-discovery");var f=e("events").EventEmitter;var c=e("inherits");var u=e("run-parallel");var l=e("parse-torrent");var p=e("re-emitter");var d=e("bittorrent-swarm");var h=e("uniq");var m=e("ut_metadata");var v=e("ut_pex");var g=e("./rarity-map");var y=e("./server");var b=e("./storage");var w=128*1024;var _=3e4;var x=5e3;var k=3*b.BLOCK_LENGTH;var E=.5;var S=1;var A=1e4;var T=2;function C(){}c(I,f);function I(e,t){var n=this;f.call(n);if(!o.enabled)n.setMaxListeners(0);o("new torrent");n.opts=t;n.client=t.client;n.hotswapEnabled="hotswap"in t?t.hotswap:true;n.verify=t.verify;n.chokeTimeout=t.chokeTimeout||x;n.pieceTimeout=t.pieceTimeout||_;n.strategy=t.strategy||"sequential";n._rechokeNumSlots=t.uploads===false||t.uploads===0?0:+t.uploads||10;n._rechokeOptimisticWire=null;n._rechokeOptimisticTime=0;n._rechokeIntervalId=null;n.ready=false;n.destroyed=false;n.files=[];n.metadata=null;n.parsedTorrent=null;n.storage=null;n.numBlockedPeers=0;n._amInterested=false;n._selections=[];n._critical=[];n._storageImpl=t.storage||b;this._torrentFileURL=null;if(e)n._onTorrentId(e)}Object.defineProperty(I.prototype,"length",{get:function(){return this.parsedTorrent&&this.parsedTorrent.length||0}});Object.defineProperty(I.prototype,"timeRemaining",{get:function(){if(this.swarm.downloadSpeed()===0)return Infinity;else return(this.length-this.downloaded)/this.swarm.downloadSpeed()*1e3}});Object.defineProperty(I.prototype,"progress",{get:function(){return this.parsedTorrent&&this.downloaded/this.parsedTorrent.length||0}});Object.defineProperty(I.prototype,"downloaded",{get:function(){return this.storage&&this.storage.downloaded||0}});Object.defineProperty(I.prototype,"uploaded",{get:function(){return this.swarm.uploaded}});Object.defineProperty(I.prototype,"ratio",{get:function(){return this.uploaded&&this.downloaded/this.uploaded||0}});Object.defineProperty(I.prototype,"magnetURI",{get:function(){return l.toMagnetURI(this.parsedTorrent)}});Object.defineProperty(I.prototype,"torrentFile",{get:function(){return l.toTorrentFile(this.parsedTorrent)}});Object.defineProperty(I.prototype,"torrentFileURL",{get:function(){if(typeof window==="undefined")throw new Error("browser-only property");if(this._torrentFileURL)return this._torrentFileURL;this._torrentFileURL=window.URL.createObjectURL(new window.Blob([this.torrentFile],{type:"application/x-bittorrent"}));return this._torrentFileURL}});I.prototype._onTorrentId=function(e){var t=this;if(t.destroyed)return;var n=e&&e.parsedTorrent;if(n){t._onParsedTorrent(n)}else{l.remote(e,function(e,n){if(t.destroyed)return;if(e)return t._onError(e);t._onParsedTorrent(n)})}};I.prototype._onParsedTorrent=function(e){var t=this;if(t.destroyed)return;t.parsedTorrent=e;t.infoHash=e.infoHash;if(!t.infoHash){return t._onError(new Error("Malformed torrent data: Missing info hash."))}if(t.parsedTorrent.name)t.name=t.parsedTorrent.name;if(t.opts.announce){t.parsedTorrent.announce=t.parsedTorrent.announce.concat(t.opts.announce)}if(r.WEBTORRENT_ANNOUNCE){t.parsedTorrent.announce=t.parsedTorrent.announce.concat(r.WEBTORRENT_ANNOUNCE)}if(t.parsedTorrent.announce.length===0){t.parsedTorrent.announce=a.announceList.map(function(e){return e[0]})}h(t.parsedTorrent.announce);t.swarm=new d(t.infoHash,t.client.peerId,{handshake:{dht:!!t.client.dht}});t.swarm.on("error",t._onError.bind(t));p(t.swarm,t,["warning"]);t.swarm.on("wire",t._onWire.bind(t));t.swarm.on("download",t.client.downloadSpeed.bind(t.client));t.swarm.on("upload",t.client.uploadSpeed.bind(t.client));t.swarm.listen(t.client.torrentPort,t._onSwarmListening.bind(t));n.nextTick(function(){if(t.destroyed)return;t.emit("infoHash",t.infoHash)})};I.prototype._onSwarmListening=function(){var e=this;if(e.destroyed)return;if(e.swarm.server)e.client.torrentPort=e.swarm.address().port;e.discovery=new s({announce:e.parsedTorrent.announce,dht:e.client.dht,tracker:e.client.tracker,peerId:e.client.peerId,port:e.client.torrentPort,rtcConfig:e.client._rtcConfig,wrtc:e.client._wrtc});e.discovery.on("error",e._onError.bind(e));e.discovery.setTorrent(e.infoHash);e.discovery.on("peer",e.addPeer.bind(e));p(e.discovery,e,["dhtAnnounce","warning"]);if(e.parsedTorrent.info)e._onMetadata(e.parsedTorrent);e.emit("listening",e.client.torrentPort)};I.prototype._onMetadata=function(e){var t=this;if(t.metadata||t.destroyed)return;o("got metadata");if(e&&e.infoHash){t.metadata=l.toTorrentFile(e);t.parsedTorrent=e}else{t.metadata=e;var r=t.parsedTorrent.announce;try{t.parsedTorrent=l(t.metadata)}catch(i){return t._onError(i)}t.parsedTorrent.announce=r}t.name=t.parsedTorrent.name;t.discovery.setTorrent(t.parsedTorrent);t.rarityMap=new g(t.swarm,t.parsedTorrent.pieces.length);t.storage=new t._storageImpl(t.parsedTorrent,t.opts);t.storage.on("piece",t._onStoragePiece.bind(t));t.storage.on("file",function(e){t.emit("file",e)});t._reservations=t.storage.pieces.map(function(){return[]});t.storage.on("done",function(){if(t.discovery.tracker)t.discovery.tracker.complete();o("torrent "+t.infoHash+" done");t.emit("done")});t.storage.on("select",t.select.bind(t));t.storage.on("deselect",t.deselect.bind(t));t.storage.on("critical",t.critical.bind(t));t.storage.files.forEach(function(e){t.files.push(e)});t.swarm.wires.forEach(function(e){if(e.ut_metadata)e.ut_metadata.setMetadata(t.metadata);t._onWireWithMetadata(e)});if(t.verify){n.nextTick(function(){o("verifying existing torrent data");var e=0;var n=0;u(t.storage.pieces.map(function(r){return function(i){t.storage.read(r.index,function(a,s){e+=1;t.emit("verifying",{percentDone:100*e/t.storage.pieces.length,percentVerified:100*n/t.storage.pieces.length});if(!a&&s){r.verify(s);n+=r.verified;o("piece "+(r.verified?"verified":"invalid")+" "+r.index)}i()},true)}}),t._onStorage.bind(t))})}else{n.nextTick(t._onStorage.bind(t))}n.nextTick(function(){t.emit("metadata")})};I.prototype.destroy=function(e){var t=this;if(t.destroyed)return;t.destroyed=true;o("destroy");if(t._rechokeIntervalId){clearInterval(t._rechokeIntervalId);t._rechokeIntervalId=null}if(t._torrentFileURL)window.URL.revokeObjectURL(t._torrentFileURL);var n=[];if(t.swarm)n.push(function(e){t.swarm.destroy(e)});if(t.discovery)n.push(function(e){t.discovery.stop(e)});if(t.storage)n.push(function(e){t.storage.close(e)});u(n,e)};I.prototype.addPeer=function(e){var t=this;if(typeof e==="string"&&t.client.blocked&&t.client.blocked.contains(i(e)[0])){t.numBlockedPeers+=1;t.emit("blockedPeer",e);return false}else{t.emit("peer",e);t.swarm.addPeer(e);return true}};I.prototype.select=function(e,t,n,r){var i=this;if(e>t||e<0||t>=i.storage.pieces.length){throw new Error("invalid selection ",e,":",t)}n=Number(n)||0;o("select %s-%s (priority %s)",e,t,n);i._selections.push({from:e,to:t,offset:0,priority:n,notify:r||C});i._selections.sort(function(e,t){return t.priority-e.priority});i._updateSelections()};I.prototype.deselect=function(e,t,n){var r=this;n=Number(n)||0;o("deselect %s-%s (priority %s)",e,t,n);for(var i=0;i<r._selections.length;++i){var a=r._selections[i];if(a.from===e&&a.to===t&&a.priority===n){r._selections.splice(i--,1);break}}r._updateSelections()};I.prototype.critical=function(e,t){var n=this;o("critical %s-%s",e,t);for(var r=e;r<=t;++r){n._critical[r]=true}n._updateSelections()};I.prototype._onWire=function(e,t){var n=this;o("got wire (%s)",t||"Unknown");if(t){var r=i(t);e.remoteAddress=r[0];e.remotePort=r[1]}e.use(m(n.metadata));if(!n.metadata){e.ut_metadata.on("metadata",function(e){o("got metadata via ut_metadata");n._onMetadata(e)});e.ut_metadata.fetch()}if(typeof v==="function"){e.use(v());e.ut_pex.on("peer",function(e){o("ut_pex: got peer: %s (from %s)",e,t);n.addPeer(e)});e.ut_pex.on("dropped",function(e){o("ut_pex: dropped peer: %s (from %s)",e,t);var r=n.swarm._peers[e];if(!r||!r.conn)n.swarm.removePeer(e)})}e.setKeepAlive(true);if(e.peerExtensions.dht&&n.client.dht&&n.client.dht.listening){e.port(n.client.dht.address().port)}e.on("port",function(t){if(!e.remoteAddress){o("ignoring port from peer with no address");return}o("port: %s (from %s)",t,e.remoteAddress+":"+e.remotePort);if(n.client.dht)n.client.dht.addNode(e.remoteAddress+":"+t)});e.on("timeout",function(){o("wire timeout (%s)",t);e.destroy()});e.setTimeout(n.pieceTimeout,true);if(n.metadata){n._onWireWithMetadata(e)}};I.prototype._onWireWithMetadata=function(e){var t=this;var n=null;var r=t.chokeTimeout;function i(){if(t.destroyed||e.destroyed)return;if(t.swarm.numQueued>2*(t.swarm.numConns-t.swarm.numPeers)&&e.amInterested){e.destroy()}else{n=setTimeout(i,r);if(n.unref)n.unref()}}var a=0;function s(){if(e.peerPieces.length!==t.storage.pieces.length)return;for(;a<t.storage.pieces.length;++a){if(!e.peerPieces.get(a))return}e.isSeeder=true;e.choke()}e.on("bitfield",function(){s();t._update()});e.on("have",function(){s();t._update()});e.once("interested",function(){e.unchoke()});e.on("close",function(){clearTimeout(n)});e.on("choke",function(){clearTimeout(n);n=setTimeout(i,r);if(n.unref)n.unref()});e.on("unchoke",function(){clearTimeout(n);t._update()});e.on("request",function(n,r,i,a){if(i>w){o("got invalid block size request %s (from %s)",i,e.remoteAddress+":"+e.remotePort);return e.destroy()}t.storage.readBlock(n,r,i,a)});e.bitfield(t.storage.bitfield);e.interested();n=setTimeout(i,r);if(n.unref)n.unref();e.isSeeder=false;s()};I.prototype._onStorage=function(){var e=this;if(e.destroyed)return;o("on storage");e.storage.readonly=false;e.select(0,e.storage.pieces.length-1,false);e._rechokeIntervalId=setInterval(e._rechoke.bind(e),A);if(e._rechokeIntervalId.unref)e._rechokeIntervalId.unref();n.nextTick(function(){e.ready=true;e.emit("ready")})};I.prototype._onStoragePiece=function(e){var t=this;o("piece done %s",e.index);t._reservations[e.index]=null;t.swarm.wires.forEach(function(t){t.have(e.index)});t._gcSelections()};I.prototype._updateSelections=function(){var e=this;if(!e.swarm||e.destroyed)return;if(!e.metadata)return e.once("metadata",e._updateSelections.bind(e));n.nextTick(e._gcSelections.bind(e));e._updateInterest();e._update()};I.prototype._gcSelections=function(){var e=this;for(var t=0;t<e._selections.length;t++){var n=e._selections[t];var r=n.offset;while(e.storage.bitfield.get(n.from+n.offset)&&n.from+n.offset<n.to){n.offset++}if(r!==n.offset)n.notify();if(n.to!==n.from+n.offset)continue;if(!e.storage.bitfield.get(n.from+n.offset))continue;e._selections.splice(t--,1);n.notify();e._updateInterest()}if(!e._selections.length)e.emit("idle")};I.prototype._updateInterest=function(){var e=this;var t=e._amInterested;e._amInterested=!!e._selections.length;e.swarm.wires.forEach(function(t){if(e._amInterested)t.interested();else t.uninterested()});if(t===e._amInterested)return;if(e._amInterested)e.emit("interested");else e.emit("uninterested")};I.prototype._update=function(){var e=this;if(e.destroyed)return;R(e.swarm.wires,e._updateWire.bind(e))};I.prototype._updateWire=function(e){var t=this;if(e.peerChoking)return;if(!e.downloaded)return a();var n=j(e,E);if(e.requests.length>=n)return;var r=j(e,S);f(false)||f(true);function i(t,n,r,i){return function(a){return a>=t&&a<=n&&!(a in r)&&e.peerPieces.get(a)&&(!i||i(a))}}function a(){if(e.requests.length)return;for(var n=t._selections.length;n--;){var r=t._selections[n];var a;if(t.strategy==="rarest"){var o=r.from+r.offset;var s=r.to;var f=s-o+1;var c={};var u=0;var l=i(o,s,c);while(u<f){a=t.rarityMap.getRarestPiece(l);if(a<0)break;if(t._request(e,a,false))return;c[a]=true;u+=1}}else{for(a=r.to;a>=r.from+r.offset;--a){if(!e.peerPieces.get(a))continue;if(t._request(e,a,false))return}}}}function o(){var n=e.downloadSpeed()||1;if(n>k)return function(){return true};var r=Math.max(1,e.requests.length)*b.BLOCK_LENGTH/n;var i=10;var a=0;return function(e){if(!i||t.storage.bitfield.get(e))return true;var o=t.storage.pieces[e];var s=o.blocks.length-o.blocksWritten;for(;a<t.swarm.wires.length;a++){var f=t.swarm.wires[a];var c=f.downloadSpeed();if(c<k)continue;if(c<=n)continue;if(!f.peerPieces.get(e))continue;if((s-=c*r)>0)continue;i--;return false}return true}}function s(e){var n=e;for(var r=e;r<t._selections.length&&t._selections[r].priority;r++){n=r}var i=t._selections[e];t._selections[e]=t._selections[n];t._selections[n]=i}function f(n){if(e.requests.length>=r)return true;var a=o();for(var f=0;f<t._selections.length;f++){var c=t._selections[f];var u;if(t.strategy==="rarest"){var l=c.from+c.offset;var p=c.to;var d=p-l+1;var h={};var m=0;var v=i(l,p,h,a);while(m<d){u=t.rarityMap.getRarestPiece(v);if(u<0)break;while(t._request(e,u,t._critical[u]||n)){}if(e.requests.length<r){h[u]=true;m++;continue}if(c.priority)s(f);return true}}else{for(u=c.from+c.offset;u<=c.to;u++){if(!e.peerPieces.get(u)||!a(u))continue;while(t._request(e,u,t._critical[u]||n)){}if(e.requests.length<r)continue;if(c.priority)s(f);return true}}}return false;
}};I.prototype._rechoke=function(){var e=this;if(e._rechokeOptimisticTime>0)e._rechokeOptimisticTime-=1;else e._rechokeOptimisticWire=null;var t=[];e.swarm.wires.forEach(function(n){if(!n.isSeeder&&n!==e._rechokeOptimisticWire){t.push({wire:n,downloadSpeed:n.downloadSpeed(),uploadSpeed:n.uploadSpeed(),salt:Math.random(),isChoked:true})}});t.sort(o);var n=0;var r=0;for(;r<t.length&&n<e._rechokeNumSlots;++r){t[r].isChoked=false;if(t[r].wire.peerInterested)n+=1}if(!e._rechokeOptimisticWire&&r<t.length&&e._rechokeNumSlots){var i=t.slice(r).filter(function(e){return e.wire.peerInterested});var a=i[L(i.length)];if(a){a.isChoked=false;e._rechokeOptimisticWire=a.wire;e._rechokeOptimisticTime=T}}t.forEach(function(e){if(e.wire.amChoking!==e.isChoked){if(e.isChoked)e.wire.choke();else e.wire.unchoke()}});function o(e,t){if(e.downloadSpeed!==t.downloadSpeed){return t.downloadSpeed-e.downloadSpeed}if(e.uploadSpeed!==t.uploadSpeed){return t.uploadSpeed-e.uploadSpeed}if(e.wire.amChoking!==t.wire.amChoking){return e.wire.amChoking?1:-1}return e.salt-t.salt}};I.prototype._hotswap=function(e,t){var n=this;if(!n.hotswapEnabled)return false;var r=e.downloadSpeed();if(r<b.BLOCK_LENGTH)return false;if(!n._reservations[t])return false;var i=n._reservations[t];if(!i){return false}var a=Infinity;var o;var s;for(s=0;s<i.length;s++){var f=i[s];if(!f||f===e)continue;var c=f.downloadSpeed();if(c>=k)continue;if(2*c>r||c>a)continue;o=f;a=c}if(!o)return false;for(s=0;s<i.length;s++){if(i[s]===o)i[s]=null}for(s=0;s<o.requests.length;s++){var u=o.requests[s];if(u.piece!==t)continue;n.storage.cancelBlock(t,u.offset)}n.emit("hotswap",o,e,t);return true};I.prototype._request=function(e,t,r){var i=this;var a=e.requests.length;if(i.storage.bitfield.get(t))return false;var s=j(e,S);if(a>=s)return false;var f=e.requests.length===0&&i.storage.numMissing<30;var c=i.storage.reserveBlock(t,f);if(!c&&!f&&r&&i._hotswap(e,t)){c=i.storage.reserveBlock(t,false)}if(!c)return false;var u=i._reservations[t];if(!u){u=i._reservations[t]=[]}var l=u.indexOf(null);if(l===-1)l=u.length;u[l]=e;function p(r,a){if(!i.ready){i.once("ready",function(){p(r,a)});return}if(u[l]===e)u[l]=null;if(r){o("error getting piece %s (offset: %s length: %s) from %s: %s",t,c.offset,c.length,e.remoteAddress+":"+e.remotePort,r.message);i.storage.cancelBlock(t,c.offset);n.nextTick(i._update.bind(i));return false}else{o("got piece %s (offset: %s length: %s) from %s",t,c.offset,c.length,e.remoteAddress+":"+e.remotePort);i.storage.writeBlock(t,c.offset,a,function(e){if(e){o("error writing block");i.storage.cancelBlock(t,c.offset)}n.nextTick(i._update.bind(i))})}}e.request(t,c.offset,c.length,p);return true};I.prototype.createServer=function(e){var t=this;if(typeof y==="function"){return new y(t,e)}};I.prototype._onError=function(e){var t=this;o("torrent error: %s",e.message||e);t.emit("error",e);t.destroy()};function j(e,t){return Math.ceil(2+t*e.downloadSpeed()/b.BLOCK_LENGTH)}function L(e){return Math.random()*e|0}function R(e,t){var n=e.map(function(e,t){return t});for(var r=n.length-1;r>0;--r){var i=L(r+1);var a=n[r];n[r]=n[i];n[i]=a}n.forEach(function(n){t(e[n],n,e)})}}).call(this,e("_process"),typeof global!=="undefined"?global:typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{"./rarity-map":5,"./server":6,"./storage":7,_process:58,"addr-to-ip-port":9,"bittorrent-swarm":11,"create-torrent":79,debug:117,events:51,inherits:125,"parse-torrent":132,"re-emitter":151,"run-parallel":152,"torrent-discovery":159,uniq:197,ut_metadata:198,ut_pex:46}],9:[function(e,t,n){var r=/^\[?([^\]]+)\]?:(\d+)$/;var i={};var a=0;t.exports=function o(e){if(a===1e5)i={};if(!i[e]){var t=r.exec(e);if(!t)throw new Error("invalid addr: "+e);i[e]=[t[1],Number(t[2])];a+=1}return i[e]};t.exports.reset=function s(){i={}}},{}],10:[function(e,t,n){(function(e){var n=typeof e!=="undefined"?e:typeof Int8Array!=="undefined"?Int8Array:function(e){var t=new Array(e);for(var n=0;n<e;n++)t[n]=0};function r(e,t){if(!(this instanceof r)){return new r(e,t)}if(arguments.length===0){e=0}this.grow=t&&(isFinite(t.grow)&&i(t.grow)||t.grow)||0;if(typeof e==="number"||e===undefined){e=new n(i(e));if(e.fill)e.fill(0)}this.buffer=e}function i(e){var t=e>>3;if(e%8!==0)t++;return t}r.prototype.get=function(e){var t=e>>3;return t<this.buffer.length&&!!(this.buffer[t]&128>>e%8)};r.prototype.set=function(e,t){var n=e>>3;if(t||arguments.length===1){if(this.buffer.length<n+1)this._grow(Math.max(n+1,Math.min(2*this.buffer.length,this.grow)));this.buffer[n]|=128>>e%8}else if(n<this.buffer.length){this.buffer[n]&=~(128>>e%8)}};r.prototype._grow=function(e){if(this.buffer.length<e&&e<=this.grow){var t=new n(e);if(t.fill)t.fill(0);if(this.buffer.copy)this.buffer.copy(t,0);else{for(var r=0;r<this.buffer.length;r++){t[r]=this.buffer[r]}}this.buffer=t}};if(typeof t!=="undefined")t.exports=r}).call(this,e("buffer").Buffer)},{buffer:47}],11:[function(e,t,n){(function(n,r){t.exports=m;var i=e("addr-to-ip-port");var a=e("debug")("bittorrent-swarm");var o=e("dezalgo");var s=e("events").EventEmitter;var f=e("inherits");var c=e("net");var u=e("./lib/peer");var l=e("speedometer");var p=e("./lib/tcp-pool");var d=55;var h=[1e3,5e3,15e3];f(m,s);function m(e,t,n){var i=this;if(!(i instanceof m))return new m(e,t,n);s.call(i);i.infoHash=typeof e==="string"?new r(e,"hex"):e;i.infoHashHex=i.infoHash.toString("hex");i.peerId=typeof t==="string"?new r(t,"hex"):t;i.peerIdHex=i.peerId.toString("hex");if(!n)n={};a("new swarm (i %s p %s)",i.infoHashHex,i.peerIdHex);i.handshakeOpts=n.handshake;i.maxConns=n.maxConns!==undefined?n.maxConns:d;i.destroyed=false;i.listening=false;i.paused=false;i.server=null;i.wires=[];i._queue=[];i._peers={};i._peersLength=0;i._port=0;i.downloaded=0;i.uploaded=0;i.downloadSpeed=l();i.uploadSpeed=l()}Object.defineProperty(m.prototype,"ratio",{get:function(){var e=this;return e.uploaded/e.downloaded||0}});Object.defineProperty(m.prototype,"numQueued",{get:function(){var e=this;return e._queue.length+(e._peersLength-e.numConns)}});Object.defineProperty(m.prototype,"numConns",{get:function(){var e=this;var t=0;for(var n in e._peers){var r=e._peers[n];if(r&&r.conn)t+=1}return t}});Object.defineProperty(m.prototype,"numPeers",{get:function(){var e=this;return e.wires.length}});m.prototype.addPeer=function(e){var t=this;if(t.destroyed){if(e&&e.destroy)e.destroy(new Error("swarm already destroyed"));return}if(typeof e==="string"&&!t._validAddr(e)){a("ignoring invalid peer %s (from swarm.addPeer)",e);return}var n=e&&e.id||e;if(t._peers[n])return;a("addPeer %s",n);var r;if(typeof e==="string"){r=u.createOutgoingTCPPeer(e,t);t._queue.push(r);t._drain()}else{r=u.createWebRTCPeer(e,t)}t._peers[r.id]=r;t._peersLength+=1};m.prototype._addIncomingPeer=function(e){var t=this;if(t.destroyed)return e.destroy(new Error("swarm already destroyed"));if(t.paused)return e.destroy(new Error("swarm paused"));if(!t._validAddr(e.addr)){return e.destroy(new Error("invalid addr "+e.addr+" (from incoming)"))}a("_addIncomingPeer %s",e.id);t._peers[e.id]=e;t._peersLength+=1};m.prototype.removePeer=function(e){var t=this;var n=t._peers[e];if(!n)return;a("removePeer %s",e);t._peers[e]=null;t._peersLength-=1;n.destroy()};m.prototype.pause=function(){var e=this;if(e.destroyed)return;a("pause");e.paused=true};m.prototype.resume=function(){var e=this;if(e.destroyed)return;a("resume");e.paused=false;e._drain()};m.prototype.listen=function(e,t,r){var i=this;if(typeof t==="function"){r=t;t=undefined}if(r)r=o(r);if(i.listening)throw new Error("swarm already listening");if(n.browser){r()}else{i._port=e||p.getDefaultListenPort(i.infoHashHex);i._hostname=t;if(r)i.once("listening",r);a("listen %s",e);var s=p.addSwarm(i);i.server=s.server}};m.prototype._onListening=function(e){var t=this;t._port=e;t.listening=true;t.emit("listening")};m.prototype.address=function(){var e=this;return e.server.address()};m.prototype.destroy=function(e){var t=this;if(t.destroyed)return;t.destroyed=true;t.listening=false;t.paused=false;if(e)t.once("close",e);a("destroy");for(var n in t._peers){t.removePeer(n)}p.removeSwarm(t,function(){t.emit("close")})};m.prototype._drain=function(){var e=this;a("_drain numConns %s maxConns %s",e.numConns,e.maxConns);if(typeof c.connect!=="function"||e.destroyed||e.paused||e.numConns>=e.maxConns){return}a("drain (%s queued, %s/%s peers)",e.numQueued,e.numPeers,e.maxConns);var t=e._queue.shift();if(!t)return;a("tcp connect attempt to %s",t.addr);var n=i(t.addr);var r=n[0];var o=n[1];var s=t.conn=c.connect({host:r,port:o,localAddress:e._hostname});s.once("connect",function(){t.onConnect()});s.once("error",function(e){t.destroy(e)});t.setConnectTimeout();s.on("close",function(){if(e.destroyed)return;if(t.retries>=h.length){a("conn %s closed: will not re-add (max %s attempts)",t.addr,h.length);return}function n(){var n=u.createOutgoingTCPPeer(t.addr,e);n.retries=t.retries+1;e._queue.push(n);e._drain()}var r=h[t.retries];a("conn %s closed: will re-add to queue in %sms (attempt %s)",t.addr,r,t.retries+1);var i=setTimeout(n,r);if(i.unref)i.unref()})};m.prototype._onError=function(e){var t=this;t.emit("error",e);t.destroy()};m.prototype._validAddr=function(e){var t=this;var n=i(e);var r=n[0];var a=n[1];return a>0&&a<65535&&!(r==="127.0.0.1"&&a===t._port)}}).call(this,e("_process"),e("buffer").Buffer)},{"./lib/peer":12,"./lib/tcp-pool":13,_process:58,"addr-to-ip-port":46,buffer:47,debug:26,dezalgo:29,events:51,inherits:32,net:46,speedometer:33}],12:[function(e,t,n){var r=e("debug")("bittorrent-swarm:peer");var i=e("bittorrent-protocol");var a=25e3;var o=25e3;n.createWebRTCPeer=function(e,t){var n=new s(e.id);n.conn=e;n.swarm=t;if(n.conn.connected){n.onConnect()}else{n.conn.once("connect",function(){n.onConnect()});n.conn.once("error",function(e){n.destroy(e)});n.setConnectTimeout()}return n};n.createIncomingTCPPeer=function(e){var t=e.remoteAddress+":"+e.remotePort;var n=new s(t);n.conn=e;n.addr=t;n.onConnect();return n};n.createOutgoingTCPPeer=function(e,t){var n=new s(e);n.swarm=t;n.addr=e;return n};function s(e){var t=this;t.id=e;r("new Peer %s",e);t.addr=null;t.conn=null;t.swarm=null;t.wire=null;t.destroyed=false;t.timeout=null;t.retries=0;t.sentHandshake=false}s.prototype.onConnect=function(){var e=this;r("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 i;n.once("end",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.setHandshakeTimeout();t.pipe(n).pipe(t);if(e.swarm)e.handshake()};s.prototype.onHandshake=function(e,t){var n=this;if(!n.swarm)return;var i=e.toString("hex");var a=t.toString("hex");if(n.swarm.destroyed)return n.destroy(new Error("swarm already destroyed"));if(i!==n.swarm.infoHashHex){return n.destroy(new Error("unexpected handshake info hash for this swarm"))}if(a===n.swarm.peerIdHex){return n.destroy(new Error("refusing to handshake with self"))}r("Peer %s got handshake %s",n.id,i);clearTimeout(n.handshakeTimeout);n.retries=0;n.wire.on("download",function(e){n.swarm.downloaded+=e;n.swarm.downloadSpeed(e);n.swarm.emit("download",e)});n.wire.on("upload",function(e){n.swarm.uploaded+=e;n.swarm.uploadSpeed(e);n.swarm.emit("upload",e)});if(!n.sentHandshake)n.handshake();n.swarm.wires.push(n.wire);var o=n.addr;if(!o&&n.conn.remoteAddress){o=n.conn.remoteAddress+":"+n.conn.remotePort}n.swarm.emit("wire",n.wire,o)};s.prototype.handshake=function(){var e=this;e.wire.handshake(e.swarm.infoHash,e.swarm.peerId,e.swarm.handshakeOpts);e.sentHandshake=true};s.prototype.setConnectTimeout=function(){var e=this;clearTimeout(e.connectTimeout);e.connectTimeout=setTimeout(function(){e.destroy(new Error("connect timeout"))},a);if(e.connectTimeout.unref)e.connectTimeout.unref()};s.prototype.setHandshakeTimeout=function(){var e=this;clearTimeout(e.handshakeTimeout);e.handshakeTimeout=setTimeout(function(){e.destroy(new Error("handshake timeout"))},o);if(e.handshakeTimeout.unref)e.handshakeTimeout.unref()};s.prototype.destroy=function(e){var t=this;if(t.destroyed)return;t.destroyed=true;r("destroy Peer %s (error: %s)",t.id,e&&(e.message||e));if(t.swarm)t.swarm.wires.splice(t.swarm.wires.indexOf(t.wire),1);if(t.conn)t.conn.destroy();if(t.wire)t.wire.destroy();if(t.swarm){t.swarm.removePeer(t.id);t.swarm._drain()}clearTimeout(t.connectTimeout);clearTimeout(t.handshakeTimeout);t.conn=null;t.swarm=null;t.wire=null}},{"bittorrent-protocol":14,debug:26}],13:[function(e,t,n){(function(n){t.exports=f;var r=e("debug")("bittorrent-swarm:tcp-pool");var i=e("dezalgo");var a=e("net");var o=e("./peer");var s={};function f(e,t){var n=this;n.port=e;n.listening=false;n.swarms={};r("new TCPPool (port: %s, hostname: %s)",e,t);n.pendingConns=[];n.server=a.createServer();n.server.on("connection",function(e){n._onConnection(e)});n.server.on("error",function(e){n._onError(e)});n.server.on("listening",function(){n._onListening()});n.server.listen(n.port,t)}f.addSwarm=function(e){var t=s[e._port];if(!t)t=s[e._port]=new f(e._port,e._hostname);t.addSwarm(e);return t};f.removeSwarm=function(e,t){var r=s[e._port];if(!r)return t();r.removeSwarm(e);var i=0;for(var a in r.swarms){var o=r.swarms[a];if(o)i+=1}if(i===0)r.destroy(t);else n.nextTick(t)};f.getDefaultListenPort=function(e){for(var t in s){var n=s[t];if(n&&!n.swarms[e])return n.port}return 0};f.prototype.addSwarm=function(e){var t=this;if(t.swarms[e.infoHashHex]){n.nextTick(function(){e._onError(new Error("There is already a swarm with info hash "+e.infoHashHex+" "+"listening on port "+e._port))});return}t.swarms[e.infoHashHex]=e;if(t.listening){n.nextTick(function(){e._onListening(t.port)})}r("add swarm %s to tcp pool %s",e.infoHashHex,t.port)};f.prototype.removeSwarm=function(e){var t=this;r("remove swarm %s from tcp pool %s",e.infoHashHex,t.port);t.swarms[e.infoHashHex]=null};f.prototype.destroy=function(e){var t=this;if(e)e=i(e);r("destroy tcp pool %s",t.port);t.listening=false;t.pendingConns.forEach(function(e){e.destroy()});s[t.port]=null;try{t.server.close(e)}catch(n){if(e)e(null)}};f.prototype._onListening=function(){var e=this;var t=e.server.address().port;r("tcp pool listening on %s",t);if(t!==e.port){s[e.port]=null;e.port=t;s[e.port]=e}e.listening=true;for(var n in e.swarms){var i=e.swarms[n];if(i)i._onListening(e.port)}};f.prototype._onConnection=function(e){var t=this;t.pendingConns.push(e);e.once("close",n);function n(){t.pendingConns.splice(t.pendingConns.indexOf(e))}var r=o.createIncomingTCPPeer(e);r.wire.once("handshake",function(i,a){var o=i.toString("hex");n();e.removeListener("close",n);var s=t.swarms[o];if(s){r.swarm=s;s._addIncomingPeer(r);r.onHandshake(i,a)}else{var f=new Error("Unexpected info hash "+o+" from incoming peer "+r.id+": destroying peer");r.destroy(f)}})};f.prototype._onError=function(e){var t=this;t.destroy();for(var n in t.swarms){var r=t.swarms[n];if(r){t.removeSwarm(r);r._onError(e)}}}}).call(this,e("_process"))},{"./peer":12,_process:58,debug:26,dezalgo:29,net:46}],14:[function(e,t,n){(function(n){t.exports=w;var r=e("bitfield");var i=e("bencode");var a=e("debug")("bittorrent-protocol");var o=e("xtend");var s=e("inherits");var f=e("speedometer");var c=e("stream");var u=4e5;var l=new n("BitTorrent protocol");var p=new n([0,0,0,0]);var d=new n([0,0,0,1,0]);var h=new n([0,0,0,1,1]);var m=new n([0,0,0,1,2]);var v=new n([0,0,0,1,3]);var g=[0,0,0,0,0,0,0,0];var y=[0,0,0,3,9,0,0];function b(e,t,n,r){this.piece=e;this.offset=t;this.length=n;this.callback=r}s(w,c.Duplex);function w(){if(!(this instanceof w))return new w;c.Duplex.call(this);a("new wire");this.amChoking=true;this.amInterested=false;this.peerChoking=true;this.peerInterested=false;this.peerPieces=new r(0,{grow:u});this.peerExtensions={};this.requests=[];this.peerRequests=[];this.extendedMapping={};this.peerExtendedMapping={};this.extendedHandshake={};this.peerExtendedHandshake={};this._ext={};this._nextExt=1;this.uploaded=0;this.downloaded=0;this.uploadSpeed=f();this.downloadSpeed=f();this._keepAlive=null;this._timeout=null;this._timeoutMs=0;this.destroyed=false;this._finished=false;this._buffer=[];this._bufferSize=0;this._parser=null;this._parserSize=0;this.on("finish",this._onfinish);this._parseHandshake()}w.prototype.setKeepAlive=function(e){clearInterval(this._keepAlive);if(e===false)return;this._keepAlive=setInterval(this._push.bind(this,p),6e4)};w.prototype.setTimeout=function(e,t){this._clearTimeout();this._timeoutMs=e;this._timeoutUnref=!!t;this._updateTimeout()};w.prototype.destroy=function(){if(this.destroyed)return;this.destroyed=true;a("destroy");this.end()};w.prototype.end=function(){this._onUninterested();this._onChoke();c.Duplex.prototype.end.apply(this,arguments)};w.prototype.use=function(e){var t=e.prototype.name;if(!t){throw new Error("Extension API requires a named function, e.g. function name() {}")}var n=this._nextExt;var r=new e(this);function i(){}if(typeof r.onHandshake!=="function"){r.onHandshake=i}if(typeof r.onExtendedHandshake!=="function"){r.onExtendedHandshake=i}if(typeof r.onMessage!=="function"){r.onMessage=i}this.extendedMapping[n]=t;this._ext[t]=r;this[t]=r;this._nextExt+=1};w.prototype.handshake=function(e,t,r){if(typeof e==="string")e=new n(e,"hex");if(typeof t==="string")t=new n(t,"hex");if(e.length!==20||t.length!==20){throw new Error("infoHash and peerId MUST have length 20")}var i=new n(g);i[5]|=16;if(r&&r.dht)i[7]|=1;this._push(n.concat([l,i,e,t]));this._handshakeSent=true;if(this.peerExtensions.extended){this._sendExtendedHandshake()}};w.prototype._sendExtendedHandshake=function(){var e=o(this.extendedHandshake);e.m={};for(var t in this.extendedMapping){var n=this.extendedMapping[t];e.m[n]=Number(t)}this.extended(0,i.encode(e))};w.prototype.choke=function(){if(this.amChoking)return;this.amChoking=true;this.peerRequests.splice(0,this.peerRequests.length);this._push(d)};w.prototype.unchoke=function(){if(!this.amChoking)return;this.amChoking=false;this._push(h)};w.prototype.interested=function(){if(this.amInterested)return;this.amInterested=true;this._push(m)};w.prototype.uninterested=function(){if(!this.amInterested)return;this.amInterested=false;this._push(v)};w.prototype.have=function(e){this._message(4,[e],null)};w.prototype.bitfield=function(e){if(!n.isBuffer(e))e=e.buffer;this._message(5,[],e)};w.prototype.request=function(e,t,n,r){if(!r)r=function(){};if(this._finished)return r(new Error("wire is closed"));if(this.peerChoking)return r(new Error("peer is choking"));this.requests.push(new b(e,t,n,r));this._updateTimeout();this._message(6,[e,t,n],null)};w.prototype.piece=function(e,t,n){this.uploaded+=n.length;this.uploadSpeed(n.length);this.emit("upload",n.length);this._message(7,[e,t],n)};w.prototype.cancel=function(e,t,n){this._callback(_(this.requests,e,t,n),new Error("request was cancelled"),null);this._message(8,[e,t,n],null)};w.prototype.port=function(e){var t=new n(y);t.writeUInt16BE(e,5);this._push(t)};w.prototype.extended=function(e,t){if(typeof e==="string"&&this.peerExtendedMapping[e]){e=this.peerExtendedMapping[e]}if(typeof e==="number"){var r=new n([e]);var a=n.isBuffer(t)?t:i.encode(t);this._message(20,[],n.concat([r,a]))}else{throw new Error("Unrecognized extension: "+e)}};w.prototype._onKeepAlive=function(){this.emit("keep-alive")};w.prototype._onHandshake=function(e,t,n){this.peerId=t;this.peerExtensions=n;this.emit("handshake",e,t,n);var r;for(r in this._ext){this._ext[r].onHandshake(e,t,n)}if(n.extended&&this._handshakeSent){this._sendExtendedHandshake()}};w.prototype._onChoke=function(){this.peerChoking=true;this.emit("choke");while(this.requests.length){this._callback(this.requests.shift(),new Error("peer is choking"),null)}};w.prototype._onUnchoke=function(){this.peerChoking=false;this.emit("unchoke")};w.prototype._onInterested=function(){this.peerInterested=true;this.emit("interested")};w.prototype._onUninterested=function(){this.peerInterested=false;this.emit("uninterested")};w.prototype._onHave=function(e){if(this.peerPieces.get(e))return;this.peerPieces.set(e,true);this.emit("have",e)};w.prototype._onBitField=function(e){this.peerPieces=new r(e);this.emit("bitfield",this.peerPieces)};w.prototype._onRequest=function(e,t,n){if(this.amChoking)return;var r=function(r,a){if(i!==_(this.peerRequests,e,t,n))return;if(r)return;this.piece(e,t,a)}.bind(this);var i=new b(e,t,n,r);this.peerRequests.push(i);this.emit("request",e,t,n,r)};w.prototype._onPiece=function(e,t,n){this._callback(_(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)};w.prototype._onCancel=function(e,t,n){_(this.peerRequests,e,t,n);this.emit("cancel",e,t,n)};w.prototype._onPort=function(e){this.emit("port",e)};w.prototype._onExtended=function(e,t){var n,r;if(e===0&&(n=x(t))){this.peerExtendedHandshake=n;if(typeof n.m==="object"){for(r in n.m){this.peerExtendedMapping[r]=Number(n.m[r].toString())}}for(r in this._ext){if(this.peerExtendedMapping[r]){this._ext[r].onExtendedHandshake(this.peerExtendedHandshake)}}this.emit("extended","handshake",this.peerExtendedHandshake)}else{if(this.extendedMapping[e]){e=this.extendedMapping[e];if(this._ext[e]){this._ext[e].onMessage(t)}}this.emit("extended",e,t)}};w.prototype._onTimeout=function(){this._callback(this.requests.shift(),new Error("request has timed out"),null);this.emit("timeout")};w.prototype._push=function(e){if(this._finished)return;return this.push(e)};w.prototype._write=function(e,t,r){this._bufferSize+=e.length;this._buffer.push(e);while(this._bufferSize>=this._parserSize){var 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t=t.split("-"),r=parseInt(t[0],10),i=parseInt(t[1],10);if(isNaN(r)){r=e-i;i=e-1}else if(isNaN(i)){i=e-1}if(i>e-1)i=e-1;if(isNaN(r)||isNaN(i)||r>i||r<0)n=false;return{start:r,end:i}});i.type=t.slice(0,r);return n?i:-1}},{}],151:[function(e,t,n){t.exports=i;t.exports.filter=a;var r=e("events").EventEmitter;function i(e,t,n){if(!Array.isArray(n))n=[n];var r=[];n.forEach(function(n){var i=function(){var e=[].slice.call(arguments);e.unshift(n);t.emit.apply(t,e)};r.push(i);e.on(n,i)});return function i(){n.forEach(function(t,n){e.removeListener(t,r[n])})}}function a(e,t){var n=new r;i(e,n,t);return n}},{events:51}],152:[function(e,t,n){arguments[4][111][0].apply(n,arguments)},{dezalgo:153,dup:111}],153:[function(e,t,n){arguments[4][29][0].apply(n,arguments)},{asap:154,dup:29,wrappy:155}],154:[function(e,t,n){arguments[4][30][0].apply(n,arguments)},{_process:58,dup:30}],155:[function(e,t,n){arguments[4][31][0].apply(n,arguments)},{dup:31}],156:[function(e,t,n){arguments[4][115][0].apply(n,arguments)},{dup:115,rusha:157}],157:[function(e,t,n){arguments[4][116][0].apply(n,arguments)},{dup:116}],158:[function(e,t,n){arguments[4][24][0].apply(n,arguments)},{dup:24}],159:[function(e,t,n){(function(n){t.exports=u;var r=e("debug")("torrent-discovery");var i=e("bittorrent-dht/client");var a=e("events").EventEmitter;var o=e("xtend/mutable");var s=e("inherits");var f=e("re-emitter");var c=e("bittorrent-tracker/client");s(u,a);function u(e){var t=this;if(!(t instanceof u))return new u(e);a.call(t);o(t,{announce:[],dht:typeof i==="function",rtcConfig:null,peerId:null,port:0,tracker:true,wrtc:null},e);t._externalDHT=typeof t.dht==="object";t._performedDHTLookup=false;if(!t.peerId)throw new Error("peerId required");if(!n.browser&&!t.port)throw new Error("port required");if(t.dht)t._createDHT(t.dhtPort)}u.prototype.setTorrent=function(e){var t=this;if(t.torrent)return;if(e&&e.infoHash){t.torrent=e;t.infoHash=e.infoHash}else{if(t.infoHash)return;t.infoHash=e}r("setTorrent %s",t.infoHash);if(t.tracker&&t.tracker!==true){t.tracker.torrentLength=e.length}else{t._createTracker()}if(t.dht){if(t.dht.ready)t._dhtLookupAndAnnounce();else t.dht.on("ready",t._dhtLookupAndAnnounce.bind(t))}};u.prototype.stop=function(e){var t=this;if(t.tracker){if(t.tracker.stop)t.tracker.stop();if(t.tracker.destroy)t.tracker.destroy()}if(!t._externalDHT&&t.dht&&t.dht.destroy)t.dht.destroy(e);else n.nextTick(function(){e(null)})};u.prototype._createDHT=function(e){var t=this;if(!t._externalDHT)t.dht=new i;f(t.dht,t,["error","warning"]);t.dht.on("peer",function(e,n){if(n===t.infoHash)t.emit("peer",e)});if(!t._externalDHT)t.dht.listen(e)};u.prototype._createTracker=function(){var e=this;if(!e.tracker)return;var t=e.torrent||{infoHash:e.infoHash,announce:e.announce};var n={rtcConfig:e.rtcConfig,wrtc:e.wrtc};e.tracker=new c(e.peerId,e.port,t,n);f(e.tracker,e,["peer","warning","error"]);e.tracker.start()};u.prototype._dhtLookupAndAnnounce=function(){var e=this;if(e._performedDHTLookup)return;e._performedDHTLookup=true;r("dht lookup");e.dht.lookup(e.infoHash,function(t){if(t||!e.port)return;r("dht announce");e.dht.announce(e.infoHash,e.port,function(){r("dht announce complete");e.emit("dhtAnnounce")})})}}).call(this,e("_process"))},{_process:58,"bittorrent-dht/client":46,"bittorrent-tracker/client":160,debug:191,events:51,inherits:194,"re-emitter":195,"xtend/mutable":196}],160:[function(e,t,n){(function(n,r){t.exports=d;var i=e("debug")("bittorrent-tracker");var a=e("events").EventEmitter;var o=e("inherits");var s=e("once");var f=e("url");var c=e("./lib/common");var u=e("./lib/http-tracker");var l=e("./lib/udp-tracker");var p=e("./lib/websocket-tracker");o(d,a);function d(e,t,o,s){var h=this;if(!(h instanceof d))return new d(e,t,o,s);a.call(h);if(!s)s={};h._peerId=r.isBuffer(e)?e:new r(e,"hex");h._peerIdHex=h._peerId.toString("hex");h._peerIdBinary=h._peerId.toString("binary");h._infoHash=r.isBuffer(o.infoHash)?o.infoHash:new r(o.infoHash,"hex");h._infoHashHex=h._infoHash.toString("hex");h._infoHashBinary=h._infoHash.toString("binary");h._port=t;h.torrentLength=o.length;h._rtcConfig=s.rtcConfig;h._wrtc=s.wrtc;h._numWant=s.numWant||c.DEFAULT_ANNOUNCE_PEERS;h._intervalMs=s.interval||c.DEFAULT_ANNOUNCE_INTERVAL;i("new client %s",h._infoHashHex);var m={interval:h._intervalMs};var v=!!h._wrtc||typeof window!=="undefined";var g=typeof o.announce==="string"?[o.announce]:o.announce==null?[]:o.announce;h._trackers=g.map(function(e){e=e.toString();var t=f.parse(e).protocol;if((t==="http:"||t==="https:")&&typeof u==="function"){return new u(h,e,m)}else if(t==="udp:"&&typeof l==="function"){return new l(h,e,m)}else if((t==="ws:"||t==="wss:")&&v){return new p(h,e,m)}else{n.nextTick(function(){var t=new Error("unsupported tracker protocol for "+e);h.emit("warning",t)})}return null}).filter(Boolean)}d.scrape=function(e,t,n){n=s(n);var i=new r("01234567890123456789");var a=6881;var o={infoHash:Array.isArray(t)?t[0]:t,announce:[e]};var f=new d(i,a,o);f.once("error",n);var c=Array.isArray(t)?t.length:1;var u={};f.on("scrape",function(e){c-=1;u[e.infoHash]=e;if(c===0){f.destroy();var t=Object.keys(u);if(t.length===1){n(null,u[t[0]])}else{n(null,u)}}});t=Array.isArray(t)?t.map(function(e){return new r(e,"hex")}):new r(t,"hex");f.scrape({infoHash:t})};d.prototype.start=function(e){var t=this;i("send `start`");e=t._defaultAnnounceOpts(e);e.event="started";t._announce(e);t._trackers.forEach(function(e){e.setInterval(t._intervalMs)})};d.prototype.stop=function(e){var t=this;i("send `stop`");e=t._defaultAnnounceOpts(e);e.event="stopped";t._announce(e)};d.prototype.complete=function(e){var t=this;i("send `complete`");if(!e)e={};if(e.downloaded==null&&t.torrentLength!=null){e.downloaded=t.torrentLength}e=t._defaultAnnounceOpts(e);e.event="completed";t._announce(e)};d.prototype.update=function(e){var t=this;i("send `update`");e=t._defaultAnnounceOpts(e);if(e.event)delete e.event;t._announce(e)};d.prototype._announce=function(e){var t=this;t._trackers.forEach(function(t){t.announce(e)})};d.prototype.scrape=function(e){var t=this;i("send `scrape`");if(!e)e={};t._trackers.forEach(function(t){t.scrape(e)})};d.prototype.setInterval=function(e){var t=this;i("setInterval");t._intervalMs=e;t._trackers.forEach(function(t){t.setInterval(e)})};d.prototype.destroy=function(){var e=this;i("destroy");e._trackers.forEach(function(e){e.destroy();e.setInterval(0)});e._trackers=[]};d.prototype._defaultAnnounceOpts=function(e){var t=this;if(!e)e={};if(e.numWant==null)e.numWant=t._numWant;if(e.uploaded==null)e.uploaded=0;if(e.downloaded==null)e.downloaded=0;if(e.left==null&&t.torrentLength!=null){e.left=t.torrentLength-e.downloaded}return e}}).call(this,e("_process"),e("buffer").Buffer)},{"./lib/common":162,"./lib/http-tracker":46,"./lib/udp-tracker":46,"./lib/websocket-tracker":163,_process:58,buffer:47,debug:164,events:51,inherits:168,once:170,url:76}],161:[function(e,t,n){(function(t){var r=e("querystring");n.IPV4_RE=/^[\d\.]+$/;n.IPV6_RE=/^[\da-fA-F:]+$/;n.CONNECTION_ID=t.concat([i(1047),i(655366528)]);n.ACTIONS={CONNECT:0,ANNOUNCE:1,SCRAPE:2,ERROR:3};n.EVENTS={update:0,completed:1,started:2,stopped:3};n.EVENT_IDS={0:"update",1:"completed",2:"started",3:"stopped"};n.EVENT_NAMES={update:"update",completed:"complete",started:"start",stopped:"stop"};function i(e){var n=new t(4);n.writeUInt32BE(e,0);return n}n.toUInt32=i;n.querystringParse=function(e){var t=r.unescape;r.unescape=unescape;var n=r.parse(e);r.unescape=t;return n};n.querystringStringify=function(e){var t=r.escape;r.escape=escape;var n=r.stringify(e);n=n.replace(/[\@\*\/\+]/g,function(e){return"%"+e.charCodeAt(0).toString(16).toUpperCase()});r.escape=t;return n}}).call(this,e("buffer").Buffer)},{buffer:47,querystring:62}],162:[function(e,t,n){(function(t){var r=e("xtend/mutable");n.DEFAULT_ANNOUNCE_INTERVAL=30*60*1e3;n.DEFAULT_ANNOUNCE_PEERS=50;n.MAX_ANNOUNCE_PEERS=82;n.binaryToHex=function(e){return new t(e,"binary").toString("hex")};n.hexToBinary=function(e){return new t(e,"hex").toString("binary")};var i=e("./common-node");r(n,i)}).call(this,e("buffer").Buffer)},{"./common-node":161,buffer:47,"xtend/mutable":190}],163:[function(e,t,n){t.exports=d;var r=e("debug")("bittorrent-tracker:websocket-tracker");var i=e("events").EventEmitter;var a=e("hat");var o=e("inherits");var s=e("simple-peer");var f=e("simple-websocket");var c=e("./common");var u={};var l=30*1e3;var p=5*1e3;o(d,i);function d(e,t,n){var a=this;i.call(a);r("new websocket tracker %s",t);a.client=e;a.destroyed=false;a._opts=n;if(t[t.length-1]==="/"){t=t.substring(0,t.length-1)}a._announceUrl=t;a._peers={};a._socket=null;a._intervalMs=a.client._intervalMs;a._interval=null;a._openSocket()}d.prototype.announce=function(e){var t=this;if(t.destroyed)return;if(!t._socket.connected){return t._socket.once("connect",t.announce.bind(t,e))}e.info_hash=t.client._infoHashBinary;e.peer_id=t.client._peerIdBinary;if(e.numWant>10)e.numWant=10;t._generateOffers(e.numWant,function(n){e.offers=n;if(t._trackerId){e.trackerid=t._trackerId}t._send(e)})};d.prototype.scrape=function(e){var t=this;if(t.destroyed)return;t._onSocketError(new Error("scrape not supported "+t._announceUrl))};d.prototype.setInterval=function(e){var t=this;clearInterval(t._interval);t._intervalMs=e;if(e){var n=t.announce.bind(t,t.client._defaultAnnounceOpts());t._interval=setInterval(n,t._intervalMs)}};d.prototype.destroy=function(){var e=this;if(e.destroyed)return;e.destroyed=true;e._socket.removeListener("data",e._onSocketDataBound);e._socket.removeListener("close",e._onSocketCloseBound);e._socket.removeListener("error",e._onSocketErrorBound);e._onSocketErrorBound=null;e._onSocketDataBound=null;e._onSocketCloseBound=null;e._socket.on("error",h);try{e._socket.close()}catch(t){}e._socket=null};d.prototype._openSocket=function(){var e=this;e._onSocketErrorBound=e._onSocketError.bind(e);e._onSocketDataBound=e._onSocketData.bind(e);e._onSocketCloseBound=e._onSocketClose.bind(e);e._socket=u[e._announceUrl];if(!e._socket){e._socket=u[e._announceUrl]=new f(e._announceUrl)}e._socket.on("data",e._onSocketDataBound);e._socket.on("close",e._onSocketCloseBound);e._socket.on("error",e._onSocketErrorBound)};d.prototype._onSocketData=function(e){var t=this;if(t.destroyed)return;if(!(typeof e==="object"&&e!==null)){return t.client.emit("warning",new Error("Invalid tracker response"))}if(e.info_hash!==t.client._infoHashBinary){r("ignoring websocket data from %s for %s (looking for %s: reused socket)",t._announceUrl,c.binaryToHex(e.info_hash),t.client._infoHashHex);return}if(e.peer_id&&e.peer_id===t.client._peerIdBinary){return}r("received %s from %s for %s",JSON.stringify(e),t._announceUrl,t.client._infoHashHex);var n=e["failure reason"];if(n)return t.client.emit("warning",new Error(n));var i=e["warning message"];if(i)t.client.emit("warning",new Error(i));var a=e.interval||e["min interval"];if(a&&!t._opts.interval&&t._intervalMs!==0){t.setInterval(a*1e3)}var o=e["tracker id"];if(o){t._trackerId=o}if(e.complete){t.client.emit("update",{announce:t._announceUrl,complete:e.complete,incomplete:e.incomplete})}var f;if(e.offer&&e.peer_id){f=new s({trickle:false,config:t.client._rtcConfig,wrtc:t.client._wrtc});f.id=c.binaryToHex(e.peer_id);f.once("signal",function(n){var r={info_hash:t.client._infoHashBinary,peer_id:t.client._peerIdBinary,to_peer_id:e.peer_id,answer:n,offer_id:e.offer_id};if(t._trackerId)r.trackerid=t._trackerId;t._send(r)});f.signal(e.offer);t.client.emit("peer",f)}if(e.answer&&e.peer_id){f=t._peers[c.binaryToHex(e.offer_id)];if(f){f.id=c.binaryToHex(e.peer_id);f.signal(e.answer);t.client.emit("peer",f)}else{r("got unexpected answer: "+JSON.stringify(e.answer))}}};d.prototype._onSocketClose=function(){var e=this;if(e.destroyed)return;e.destroy();e._startReconnectTimer()};d.prototype._onSocketError=function(e){var t=this;if(t.destroyed)return;t.destroy();t.client.emit("warning",e);t._startReconnectTimer()};d.prototype._startReconnectTimer=function(){var e=this;var t=Math.floor(Math.random()*l)+p;setTimeout(function(){e.destroyed=false;e._openSocket()},t);r("reconnecting socket in %s ms",t)};d.prototype._send=function(e){var t=this;if(t.destroyed)return;var n=JSON.stringify(e);r("send %s",n);t._socket.send(n)};d.prototype._generateOffers=function(e,t){var n=this;var i=[];r("generating %s offers",e);for(var o=0;o<e;++o){f()}function f(){var e=a(160);var t=n._peers[e]=new s({initiator:true,trickle:false,config:n.client._rtcConfig,wrtc:n.client._wrtc});t.once("signal",function(t){i.push({offer:t,offer_id:c.hexToBinary(e)});u()})}function u(){if(i.length===e){r("generated %s offers",e);t(i)}}};function h(){}},{"./common":162,debug:164,events:51,hat:167,inherits:168,"simple-peer":171,"simple-websocket":182}],164:[function(e,t,n){arguments[4][117][0].apply(n,arguments)},{"./debug":165,dup:117}],165:[function(e,t,n){arguments[4][21][0].apply(n,arguments)},{dup:21,ms:166}],166:[function(e,t,n){arguments[4][119][0].apply(n,arguments)},{dup:119}],167:[function(e,t,n){arguments[4][124][0].apply(n,arguments)},{dup:124}],168:[function(e,t,n){arguments[4][23][0].apply(n,arguments)},{dup:23}],169:[function(e,t,n){arguments[4][31][0].apply(n,arguments)},{dup:31}],170:[function(e,t,n){arguments[4][108][0].apply(n,arguments)},{dup:108,wrappy:169}],171:[function(e,t,n){(function(n){t.exports=u;var r=e("debug")("simple-peer");var i=e("hat");var a=e("inherits");var o=e("is-typedarray");var s=e("once");var f=e("stream");var c=e("typedarray-to-buffer");a(u,f.Duplex);function u(e){var t=this;if(!(t instanceof u))return new u(e);t._debug("new peer %o",e);if(!e)e={};e.allowHalfOpen=false;if(e.highWaterMark==null)e.highWaterMark=1024*1024;f.Duplex.call(t,e);t.initiator=e.initiator||false;t.channelConfig=e.channelConfig||u.channelConfig;t.channelName=e.channelName||i(160);if(!e.initiator)t.channelName=null;t.config=e.config||u.config;t.constraints=e.constraints||u.constraints;t.reconnectTimer=e.reconnectTimer||0;t.sdpTransform=e.sdpTransform||function(e){return e};t.stream=e.stream||false;t.trickle=e.trickle!==undefined?e.trickle:true;t.destroyed=false;t.connected=false;t.remoteAddress=undefined;t.remoteFamily=undefined;t.remotePort=undefined;t.localAddress=undefined;t.localPort=undefined;t._wrtc=e.wrtc||l();if(!t._wrtc){if(typeof window==="undefined"){throw new Error("No WebRTC support: Specify `opts.wrtc` option in this environment")}else{throw new Error("No WebRTC support: Not a supported browser")}}t._maxBufferedAmount=e.highWaterMark;t._pcReady=false;t._channelReady=false;t._iceComplete=false;t._channel=null;t._chunk=null;t._cb=null;t._interval=null;t._reconnectTimeout=null;t._pc=new t._wrtc.RTCPeerConnection(t.config,t.constraints);t._pc.oniceconnectionstatechange=t._onIceConnectionStateChange.bind(t);t._pc.onsignalingstatechange=t._onSignalingStateChange.bind(t);t._pc.onicecandidate=t._onIceCandidate.bind(t);if(t.stream)t._pc.addStream(t.stream);t._pc.onaddstream=t._onAddStream.bind(t);if(t.initiator){t._setupData({channel:t._pc.createDataChannel(t.channelName,t.channelConfig)});t._pc.onnegotiationneeded=s(t._createOffer.bind(t));if(typeof window==="undefined"||!window.webkitRTCPeerConnection){t._pc.onnegotiationneeded()}}else{t._pc.ondatachannel=t._setupData.bind(t)}t.on("finish",function(){if(t.connected){setTimeout(function(){t._destroy()},100)}else{t.once("connect",function(){setTimeout(function(){t._destroy()},100)})}})}u.WEBRTC_SUPPORT=!!l();u.config={iceServers:[{url:"stun:23.21.150.121",urls:"stun:23.21.150.121"}]};u.constraints={};u.channelConfig={};Object.defineProperty(u.prototype,"bufferSize",{get:function(){var e=this;return e._channel&&e._channel.bufferedAmount||0}});u.prototype.address=function(){var e=this;return{port:e.localPort,family:"IPv4",address:e.localAddress}};u.prototype.signal=function(e){var t=this;if(t.destroyed)throw new Error("cannot signal after peer is destroyed");if(typeof e==="string"){try{e=JSON.parse(e)}catch(n){e={}}}t._debug("signal()");if(e.sdp){t._pc.setRemoteDescription(new t._wrtc.RTCSessionDescription(e),function(){if(t.destroyed)return;if(t._pc.remoteDescription.type==="offer")t._createAnswer()},t._onError.bind(t))}if(e.candidate){try{t._pc.addIceCandidate(new t._wrtc.RTCIceCandidate(e.candidate),p,t._onError.bind(t))}catch(n){t._destroy(new Error("error adding candidate: "+n.message))}}if(!e.sdp&&!e.candidate){t._destroy(new Error("signal() called with invalid signal data"))}};u.prototype.send=function(e){var t=this;if(!o.strict(e)&&!(e instanceof ArrayBuffer)&&!n.isBuffer(e)&&typeof e!=="string"&&(typeof Blob==="undefined"||!(e instanceof Blob))){e=JSON.stringify(e)}if(n.isBuffer(e)&&!o.strict(e)){e=new Uint8Array(e)}var r=e.length||e.byteLength||e.size;t._channel.send(e);t._debug("write: %d bytes",r)};u.prototype.destroy=function(e){var t=this;t._destroy(null,e)};u.prototype._destroy=function(e,t){var n=this;if(n.destroyed)return;if(t)n.once("close",t);n._debug("destroy (error: %s)",e&&e.message);n.readable=n.writable=false;if(!n._readableState.ended)n.push(null);if(!n._writableState.finished)n.end();n.destroyed=true;n.connected=false;n._pcReady=false;n._channelReady=false;n._chunk=null;n._cb=null;clearInterval(n._interval);clearTimeout(n._reconnectTimeout);if(n._pc){try{n._pc.close()}catch(e){}n._pc.oniceconnectionstatechange=null;n._pc.onsignalingstatechange=null;n._pc.onicecandidate=null}if(n._channel){try{n._channel.close()}catch(e){}n._channel.onmessage=null;n._channel.onopen=null;n._channel.onclose=null}n._pc=null;n._channel=null;if(e)n.emit("error",e);n.emit("close")};u.prototype._setupData=function(e){var t=this;t._channel=e.channel;t.channelName=t._channel.label;t._channel.binaryType="arraybuffer";t._channel.onmessage=t._onChannelMessage.bind(t);t._channel.onopen=t._onChannelOpen.bind(t);t._channel.onclose=t._onChannelClose.bind(t)};u.prototype._read=function(){};u.prototype._write=function(e,t,n){var r=this;if(r.destroyed)return n(new Error("cannot write after peer is destroyed"));if(r.connected){r.send(e);if(r._channel.bufferedAmount>r._maxBufferedAmount){r._debug("start backpressure: bufferedAmount %d",r._channel.bufferedAmount);r._cb=n}else{n(null)}}else{r._debug("write before connect");r._chunk=e;r._cb=n}};u.prototype._createOffer=function(){var e=this;if(e.destroyed)return;e._pc.createOffer(function(t){if(e.destroyed)return;t.sdp=e.sdpTransform(t.sdp);e._pc.setLocalDescription(t,p,e._onError.bind(e));var n=function(){var n=e._pc.localDescription||t;e._debug("signal");e.emit("signal",{type:n.type,sdp:n.sdp})};if(e.trickle||e._iceComplete)n();else e.once("_iceComplete",n)},e._onError.bind(e),e.offerConstraints)};u.prototype._createAnswer=function(){var e=this;if(e.destroyed)return;e._pc.createAnswer(function(t){if(e.destroyed)return;t.sdp=e.sdpTransform(t.sdp);e._pc.setLocalDescription(t,p,e._onError.bind(e));var n=function(){var n=e._pc.localDescription||t;e._debug("signal");e.emit("signal",{type:n.type,sdp:n.sdp})};if(e.trickle||e._iceComplete)n();else e.once("_iceComplete",n)},e._onError.bind(e),e.answerConstraints)};u.prototype._onIceConnectionStateChange=function(){var e=this;if(e.destroyed)return;var t=e._pc.iceGatheringState;var n=e._pc.iceConnectionState;e._debug("iceConnectionStateChange %s %s",t,n);e.emit("iceConnectionStateChange",t,n);if(n==="connected"||n==="completed"){clearTimeout(e._reconnectTimeout);e._pcReady=true;e._maybeReady()}if(n==="disconnected"){if(e.reconnectTimer){clearTimeout(e._reconnectTimeout);e._reconnectTimeout=setTimeout(function(){e._destroy()},e.reconnectTimer)}else{e._destroy()}}if(n==="closed"){e._destroy()}};u.prototype._maybeReady=function(){var e=this;e._debug("maybeReady pc %s channel %s",e._pcReady,e._channelReady);if(e.connected||e._connecting||!e._pcReady||!e._channelReady)return;e._connecting=true;if(typeof window!=="undefined"&&!!window.mozRTCPeerConnection){e._pc.getStats(null,function(e){var n=[];e.forEach(function(e){n.push(e)});t(n)},e._onError.bind(e))}else{e._pc.getStats(function(e){var n=[];e.result().forEach(function(e){var t={};e.names().forEach(function(n){t[n]=e.stat(n)});t.id=e.id;t.type=e.type;t.timestamp=e.timestamp;n.push(t)});t(n)})}function t(t){t.forEach(function(t){if(t.type==="remotecandidate"){e.remoteAddress=t.ipAddress;e.remoteFamily="IPv4";e.remotePort=Number(t.portNumber);e._debug("connect remote: %s:%s (%s)",e.remoteAddress,e.remotePort,e.remoteFamily)}else if(t.type==="localcandidate"&&t.candidateType==="host"){e.localAddress=t.ipAddress;e.localPort=Number(t.portNumber);e._debug("connect local: %s:%s",e.localAddress,e.localPort)}});e._connecting=false;e.connected=true;if(e._chunk){e.send(e._chunk);e._chunk=null;e._debug('sent chunk from "write before connect"');var n=e._cb;e._cb=null;n(null)}e._interval=setInterval(function(){if(!e._cb||!e._channel||e._channel.bufferedAmount>e._maxBufferedAmount)return;e._debug("ending backpressure: bufferedAmount %d",e._channel.bufferedAmount);var t=e._cb;e._cb=null;t(null)},150);if(e._interval.unref)e._interval.unref();e._debug("connect");e.emit("connect")}};u.prototype._onSignalingStateChange=function(){var e=this;if(e.destroyed)return;e._debug("signalingStateChange %s",e._pc.signalingState);e.emit("signalingStateChange",e._pc.signalingState)};u.prototype._onIceCandidate=function(e){var t=this;if(t.destroyed)return;if(e.candidate&&t.trickle){t.emit("signal",{candidate:{candidate:e.candidate.candidate,sdpMLineIndex:e.candidate.sdpMLineIndex,sdpMid:e.candidate.sdpMid}})}else if(!e.candidate){t._iceComplete=true;t.emit("_iceComplete")}};u.prototype._onChannelMessage=function(e){var t=this;if(t.destroyed)return;var n=e.data;t._debug("read: %d bytes",n.byteLength||n.length);if(n instanceof ArrayBuffer){n=c(new Uint8Array(n));t.push(n)}else{try{n=JSON.parse(n)}catch(r){}t.emit("data",n)}};u.prototype._onChannelOpen=function(){var e=this;if(e.connected||e.destroyed)return;e._debug("on channel open");e._channelReady=true;e._maybeReady()};u.prototype._onChannelClose=function(){var e=this;if(e.destroyed)return;e._debug("on channel close");e._destroy()};u.prototype._onAddStream=function(e){var t=this;if(t.destroyed)return;t._debug("on add stream");t.emit("stream",e.stream)};u.prototype._onError=function(e){var t=this;if(t.destroyed)return;t._debug("error %s",e.message||e);t._destroy(e)};u.prototype._debug=function(){var e=this;var t=[].slice.call(arguments);var n=e.channelName&&e.channelName.substring(0,7);t[0]="["+n+"] "+t[0];r.apply(null,t)};function l(){if(typeof window==="undefined")return null;var e={RTCPeerConnection:window.mozRTCPeerConnection||window.RTCPeerConnection||window.webkitRTCPeerConnection,RTCSessionDescription:window.mozRTCSessionDescription||window.RTCSessionDescription||window.webkitRTCSessionDescription,RTCIceCandidate:window.mozRTCIceCandidate||window.RTCIceCandidate||window.webkitRTCIceCandidate};if(!e.RTCPeerConnection)return null;return e}function p(){}}).call(this,e("buffer").Buffer)},{buffer:47,debug:172,hat:175,inherits:176,"is-typedarray":177,once:179,stream:74,"typedarray-to-buffer":180}],172:[function(e,t,n){arguments[4][117][0].apply(n,arguments)},{"./debug":173,dup:117}],173:[function(e,t,n){arguments[4][21][0].apply(n,arguments)},{dup:21,ms:174}],174:[function(e,t,n){arguments[4][119][0].apply(n,arguments)},{dup:119}],175:[function(e,t,n){arguments[4][124][0].apply(n,arguments)},{dup:124}],176:[function(e,t,n){arguments[4][23][0].apply(n,arguments)},{dup:23}],177:[function(e,t,n){t.exports=a;a.strict=o;a.loose=s;var r=Object.prototype.toString;var i={"[object Int8Array]":true,"[object Int16Array]":true,"[object Int32Array]":true,"[object Uint8Array]":true,"[object Uint8ClampedArray]":true,"[object Uint16Array]":true,"[object Uint32Array]":true,"[object Float32Array]":true,"[object Float64Array]":true};function a(e){return o(e)||s(e)}function o(e){return e instanceof Int8Array||e instanceof Int16Array||e instanceof Int32Array||e instanceof Uint8Array||e instanceof Uint8ClampedArray||e instanceof Uint16Array||e instanceof Uint32Array||e instanceof Float32Array||e instanceof Float64Array}function s(e){return i[r.call(e)]}},{}],178:[function(e,t,n){arguments[4][31][0].apply(n,arguments)},{dup:31}],179:[function(e,t,n){arguments[4][108][0].apply(n,arguments)},{dup:108,wrappy:178}],180:[function(e,t,n){arguments[4][100][0].apply(n,arguments)},{buffer:47,dup:100,"is-typedarray":181}],181:[function(e,t,n){arguments[4][177][0].apply(n,arguments)},{dup:177}],182:[function(e,t,n){(function(n){t.exports=u;var r=e("debug")("simple-websocket");var i=e("inherits");var a=e("is-typedarray");var o=e("stream");var s=e("typedarray-to-buffer");var f=e("ws");var c=typeof window!=="undefined"?window.WebSocket:f;i(u,o.Duplex);function u(e,t){var n=this;if(!(n instanceof u))return new u(e,t);if(!t)t={};r("new websocket: %s %o",e,t);t.allowHalfOpen=false;if(t.highWaterMark==null)t.highWaterMark=1024*1024;o.Duplex.call(n,t);n.url=e;n.connected=false;n.destroyed=false;n._maxBufferedAmount=t.highWaterMark;n._chunk=null;n._cb=null;n._interval=null;n._ws=new c(n.url);n._ws.binaryType="arraybuffer";n._ws.onopen=n._onOpen.bind(n);n._ws.onmessage=n._onMessage.bind(n);n._ws.onclose=n._onClose.bind(n);n._ws.onerror=n._onError.bind(n);n.on("finish",function(){if(n.connected){setTimeout(function(){n._destroy()},100)}else{n.once("connect",function(){setTimeout(function(){n._destroy()},100)})}})}u.prototype.send=function(e){var t=this;if(!a.strict(e)&&!(e instanceof ArrayBuffer)&&!n.isBuffer(e)&&typeof e!=="string"&&(typeof Blob==="undefined"||!(e instanceof Blob))){e=JSON.stringify(e)}var i=e.length||e.byteLength||e.size;t._ws.send(e);r("write: %d bytes",i)};u.prototype.destroy=function(e){var t=this;t._destroy(null,e)};u.prototype._destroy=function(e,t){var n=this;if(n.destroyed)return;if(t)n.once("close",t);r("destroy (error: %s)",e&&e.message);this.readable=this.writable=false;if(!n._readableState.ended)n.push(null);if(!n._writableState.finished)n.end();n.connected=false;n.destroyed=true;clearInterval(n._interval);n._interval=null;n._chunk=null;n._cb=null;if(n._ws){try{n._ws.close()}catch(e){}n._ws.onopen=null;n._ws.onmessage=null;n._ws.onclose=null;n._ws.onerror=null}n._ws=null;if(e)n.emit("error",e);n.emit("close")};u.prototype._read=function(){};u.prototype._write=function(e,t,n){var i=this;if(i.destroyed)return n(new Error("cannot write after socket is destroyed"));if(i.connected){i.send(e);if(typeof f!=="function"&&i._ws.bufferedAmount>i._maxBufferedAmount){r("start backpressure: bufferedAmount %d",i._ws.bufferedAmount);i._cb=n}else{n(null)}}else{r("write before connect");i._chunk=e;i._cb=n}};u.prototype._onMessage=function(e){var t=this;if(t.destroyed)return;var i=e.data;r("read: %d bytes",i.byteLength||i.length);if(i instanceof ArrayBuffer){i=s(new Uint8Array(i));t.push(i)}else if(n.isBuffer(i)){t.push(i)}else{try{i=JSON.parse(i)}catch(a){}t.emit("data",i)}};u.prototype._onOpen=function(){var e=this;if(e.connected||e.destroyed)return;e.connected=true;if(e._chunk){e.send(e._chunk);e._chunk=null;r('sent chunk from "write before connect"');var t=e._cb;e._cb=null;t(null)}if(typeof f!=="function"){e._interval=setInterval(function(){if(!e._cb||!e._ws||e._ws.bufferedAmount>e._maxBufferedAmount){return}r("ending backpressure: bufferedAmount %d",e._ws.bufferedAmount);var t=e._cb;e._cb=null;t(null)},150);if(e._interval.unref)e._interval.unref()}r("connect");e.emit("connect")};u.prototype._onClose=function(){var e=this;if(e.destroyed)return;r("on close");e._destroy()};u.prototype._onError=function(){var e=this;if(e.destroyed)return;var t=new Error("connection error to "+e.url);r("error: %s",t.message||t);e._destroy(t)}}).call(this,e("buffer").Buffer)},{buffer:47,debug:183,inherits:186,"is-typedarray":187,stream:74,"typedarray-to-buffer":188,ws:46}],183:[function(e,t,n){arguments[4][117][0].apply(n,arguments)},{"./debug":184,dup:117}],184:[function(e,t,n){arguments[4][21][0].apply(n,arguments)},{dup:21,ms:185}],185:[function(e,t,n){arguments[4][119][0].apply(n,arguments)},{dup:119}],186:[function(e,t,n){arguments[4][23][0].apply(n,arguments)},{dup:23}],187:[function(e,t,n){arguments[4][177][0].apply(n,arguments)},{dup:177}],188:[function(e,t,n){arguments[4][100][0].apply(n,arguments)},{buffer:47,dup:100,"is-typedarray":189}],189:[function(e,t,n){arguments[4][177][0].apply(n,arguments)},{dup:177}],190:[function(e,t,n){t.exports=r;function r(e){for(var t=1;t<arguments.length;t++){var n=arguments[t];for(var r in n){if(n.hasOwnProperty(r)){e[r]=n[r]}}}return e}},{}],191:[function(e,t,n){arguments[4][20][0].apply(n,arguments)},{"./debug":192,dup:20}],192:[function(e,t,n){arguments[4][21][0].apply(n,arguments)},{dup:21,ms:193}],193:[function(e,t,n){arguments[4][22][0].apply(n,arguments)},{dup:22}],194:[function(e,t,n){arguments[4][23][0].apply(n,arguments)},{dup:23}],195:[function(e,t,n){arguments[4][151][0].apply(n,arguments)},{dup:151,events:51}],196:[function(e,t,n){arguments[4][190][0].apply(n,arguments)},{dup:190}],197:[function(e,t,n){arguments[4][139][0].apply(n,arguments)},{dup:139}],198:[function(e,t,n){(function(n){var r=e("bencode");var i=e("bitfield");var a=e("events").EventEmitter;var o=e("inherits");var s=e("simple-sha1");var f=1e7;var c=1e3;var u=16*1024;t.exports=function(e){o(t,a);function t(t){a.call(this);this._wire=t;this._metadataComplete=false;this._metadataSize=null;this._remainingRejects=null;this._fetching=false;this._bitfield=new i(0,{grow:c});if(n.isBuffer(e)){this.setMetadata(e)}}t.prototype.name="ut_metadata";
t.prototype.onHandshake=function(e,t,n){this._infoHash=e;this._infoHashHex=e.toString("hex")};t.prototype.onExtendedHandshake=function(e){if(!e.m||!e.m.ut_metadata){return this.emit("warning",new Error("Peer does not support ut_metadata"))}if(!e.metadata_size){return this.emit("warning",new Error("Peer does not have metadata"))}if(e.metadata_size>f){return this.emit("warning",new Error("Peer gave maliciously large metadata size"))}this._metadataSize=e.metadata_size;this._numPieces=Math.ceil(this._metadataSize/u);this._remainingRejects=this._numPieces*2;if(this._fetching){this._requestPieces()}};t.prototype.onMessage=function(e){var t,n;try{var i=e.toString();var a=i.indexOf("ee")+2;t=r.decode(i.substring(0,a));n=e.slice(a)}catch(o){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);break}};t.prototype.fetch=function(){if(this._metadataComplete){return}this._fetching=true;if(this._metadataSize){this._requestPieces()}};t.prototype.cancel=function(){this._fetching=false};t.prototype.setMetadata=function(e){if(this._metadataComplete)return true;try{var t=r.decode(e).info;if(t){e=r.encode(t)}}catch(n){}if(this._infoHashHex&&this._infoHashHex!==s.sync(e)){return false}this.cancel();this.metadata=e;this._metadataComplete=true;this._metadataSize=this.metadata.length;this._wire.extendedHandshake.metadata_size=this._metadataSize;this.emit("metadata",r.encode({info:r.decode(this.metadata)}));return true};t.prototype._send=function(e,t){var i=r.encode(e);if(n.isBuffer(t)){i=n.concat([i,t])}this._wire.extended("ut_metadata",i)};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};if(typeof n==="number"){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){this._reject(e);return}var t=e*u;var n=t+u;if(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,n){if(t.length>u){return}t.copy(this.metadata,e*u);this._bitfield.set(e);this._checkDone()};t.prototype._onReject=function(e){if(this._remainingRejects>0&&this._fetching){this._request(e);this._remainingRejects-=1}else{this.emit("warning",new Error('Peer sent "reject" too much'))}};t.prototype._requestPieces=function(){this.metadata=new n(this._metadataSize);for(var e=0;e<this._numPieces;e++){this._request(e)}};t.prototype._checkDone=function(){var e=true;for(var t=0;t<this._numPieces;t++){if(!this._bitfield.get(t)){e=false;break}}if(!e)return;var n=this.setMetadata(this.metadata);if(!n){this._failedMetadata()}};t.prototype._failedMetadata=function(){this._bitfield=new i(0,{grow:c});this._remainingRejects-=this._numPieces;if(this._remainingRejects>0){this._requestPieces()}else{this.emit("warning",new Error("Peer sent invalid metadata"))}};return t}}).call(this,e("buffer").Buffer)},{bencode:199,bitfield:203,buffer:47,events:51,inherits:204,"simple-sha1":205}],199:[function(e,t,n){arguments[4][15][0].apply(n,arguments)},{"./lib/decode":200,"./lib/encode":202,dup:15}],200:[function(e,t,n){arguments[4][16][0].apply(n,arguments)},{"./dict":201,buffer:47,dup:16}],201:[function(e,t,n){arguments[4][17][0].apply(n,arguments)},{dup:17}],202:[function(e,t,n){arguments[4][18][0].apply(n,arguments)},{buffer:47,dup:18}],203:[function(e,t,n){arguments[4][10][0].apply(n,arguments)},{buffer:47,dup:10}],204:[function(e,t,n){arguments[4][23][0].apply(n,arguments)},{dup:23}],205:[function(e,t,n){arguments[4][115][0].apply(n,arguments)},{dup:115,rusha:206}],206:[function(e,t,n){arguments[4][116][0].apply(n,arguments)},{dup:116}],207:[function(e,t,n){arguments[4][25][0].apply(n,arguments)},{dup:25}],208:[function(e,t,n){t.exports=function r(e,t,n){if(t===undefined){return function(t,n){return r(e,t,n)}}if(n===undefined)n="0";e-=t.toString().length;if(e>0)return new Array(e+(/\./.test(t)?2:1)).join(n)+t;return t+""}},{}],209:[function(e,t,n){t.exports={name:"webtorrent",description:"Streaming torrent client",version:"0.49.1",author:{name:"Feross Aboukhadijeh",email:"feross@feross.org",url:"http://feross.org/"},bin:{webtorrent:"./bin/cmd.js"},browser:{"./lib/fs-storage":false,"./lib/server":false,"bittorrent-dht/client":false,"load-ip-set":false,ut_pex:false},bugs:{url:"https://github.com/feross/webtorrent/issues"},dependencies:{"addr-to-ip-port":"^1.0.1",bitfield:"^1.0.2","bittorrent-dht":"^3.0.0","bittorrent-swarm":"^5.0.0","block-stream2":"^1.0.0",clivas:"^0.2.0","create-torrent":"^3.4.0",debug:"^2.1.0",dezalgo:"^1.0.1","end-of-stream":"^1.0.0",hat:"0.0.3",inherits:"^2.0.1",inquirer:"^0.8.0","load-ip-set":"^1.0.3",mime:"^1.2.11",minimist:"^1.1.0",mkdirp:"^0.5.0",moment:"^2.8.3",multistream:"^1.4.2","network-address":"^1.0.0",once:"^1.3.1","parse-torrent":"^5.1.0","pretty-bytes":"^2.0.1",pump:"^1.0.0","random-access-file":"^0.3.1","range-parser":"^1.0.2","re-emitter":"^1.0.0",rimraf:"^2.2.5","run-parallel":"^1.0.0","simple-sha1":"^2.0.0",speedometer:"^0.1.2",thunky:"^0.1.0","torrent-discovery":"^3.0.0",uniq:"^1.0.1",ut_metadata:"^2.1.0",ut_pex:"^1.0.1","windows-no-runnable":"0.0.6",xtend:"^4.0.0","zero-fill":"^2.2.0"},devDependencies:{"bittorrent-tracker":"^4.0.0",brfs:"^1.2.0",browserify:"^10.0.0","run-auto":"^1.0.0","simple-get":"^1.0.0",standard:"^4.0.1",tape:"^4.0.0","uglify-js":"^2.4.15",zelda:"^2.0.0",zuul:"^3.0.0"},homepage:"http://webtorrent.io",keywords:["torrent","bittorrent","bittorrent client","streaming","download","webrtc","webrtc data","webtorrent","mad science"],license:"MIT",main:"index.js",optionalDependencies:{"airplay-js":"^0.2.3","chromecast-js":"^0.1.4",nodebmc:"0.0.5"},repository:{type:"git",url:"git://github.com/feross/webtorrent.git"},scripts:{build:"browserify -s WebTorrent -e ./ | uglifyjs -m > webtorrent.min.js","build-debug":"browserify -s WebTorrent -e ./ > webtorrent.debug.js",size:"npm run build && cat webtorrent.min.js | gzip | wc -c",test:"standard && node ./bin/test.js","test-browser":"zuul -- test/basic.js","test-browser-local":"zuul --local -- test/basic.js","test-node":"tape test/*.js"}}},{}]},{},[1])(1)});