diff options
author | Feross Aboukhadijeh <feross@feross.org> | 2015-05-17 13:01:27 +0300 |
---|---|---|
committer | Feross Aboukhadijeh <feross@feross.org> | 2015-05-17 13:01:27 +0300 |
commit | cb80413d945a70e08be9d5fd69fa6aaffbce4d65 (patch) | |
tree | 6cee95e68e1ae95975be7145f6bb96e2b8d3d499 /webtorrent.min.js | |
parent | 5ba394e5bcc93927721238317e86b9254dc59eff (diff) |
build
Diffstat (limited to 'webtorrent.min.js')
-rw-r--r-- | webtorrent.min.js | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/webtorrent.min.js b/webtorrent.min.js index 50e1c4c..94d52a6 100644 --- a/webtorrent.min.js +++ b/webtorrent.min.js @@ -1,7 +1,7 @@ -(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,r;return function n(e,t,r){function i(a,s){if(!t[a]){if(!e[a]){var f=typeof require=="function"&&require;if(!s&&f)return f(a,!0);if(o)return o(a,!0);var u=new Error("Cannot find module '"+a+"'");throw u.code="MODULE_NOT_FOUND",u}var c=t[a]={exports:{}};e[a][0].call(c.exports,function(t){var r=e[a][1][t];return i(r?r:t)},c,c.exports,n,e,t,r)}return t[a].exports}var o=typeof require=="function"&&require;for(var a=0;a<r.length;a++)i(r[a]);return i}({1:[function(e,t,r){(function(r,n,i){t.exports=_;var o=e("create-torrent");var a=e("debug")("webtorrent");var s=e("bittorrent-dht/client");var f=e("events").EventEmitter;var u=e("xtend");var c=e("hat");var l=e("inherits");var h=e("load-ip-set");var d=e("run-parallel");var p=e("parse-torrent");var g=e("speedometer");var m=e("zero-fill");var v=e("./lib/fs-storage");var y=e("./lib/storage");var b=e("./lib/torrent");l(_,f);var w=e("./package.json").version.match(/([0-9]+)/g).slice(0,2).map(m(2)).join("");function _(e){var t=this;if(!(t instanceof _))return new _(e);if(!e)e={};f.call(t);if(!a.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||n.WRTC;t.torrents=[];t.downloadSpeed=g();t.uploadSpeed=g();t.storage=typeof e.storage==="function"?e.storage:e.storage!==false&&typeof v==="function"?v:y;t.peerId=e.peerId===undefined?new i("-WW"+w+"-"+c(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(c(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(u({nodeId:t.nodeId},e.dht));t.dht.listen(e.dhtPort)}a("new webtorrent (peerId %s, nodeId %s)",t.peerIdHex,t.nodeIdHex);if(typeof h==="function"){h(e.blocklist,{headers:{"user-agent":"WebTorrent (http://webtorrent.io)"}},function(e,r){if(e)return t.error("failed to load blocklist: "+e.message);t.blocked=r;o()})}else r.nextTick(o);function o(){if(t.destroyed)return;t.ready=true;t.emit("ready")}}Object.defineProperty(_.prototype,"ratio",{get:function(){var e=this;var t=e.torrents.reduce(function(e,t){return e+t.uploaded},0);var r=e.torrents.reduce(function(e,t){return e+t.downloaded},0)||1;return t/r}});_.prototype.get=function(e){var t=this;var r=p(e);if(!r.infoHash)throw new Error("Invalid torrent identifier");for(var n=0,i=t.torrents.length;n<i;n++){var o=t.torrents[n];if(o.infoHash===r.infoHash)return o}return null};_.prototype.add=_.prototype.download=function(e,t,r){var n=this;if(n.destroyed)throw new Error("client is destroyed");a("add");if(typeof t==="function"){r=t;t={}}if(!t)t={};t.client=n;t.storage=t.storage||n.storage;var i=new b(e,t);n.torrents.push(i);function o(e){if(i.infoHash===e.infoHash){r(i);n.removeListener("torrent",o)}}if(r)n.on("torrent",o);i.on("error",function(e){n.emit("error",e,i)});i.on("listening",function(e){n.emit("listening",e,i)});i.on("ready",function(){a("torrent");n.emit("torrent",i)});return i};_.prototype.seed=function(e,t,r){var n=this;if(n.destroyed)throw new Error("client is destroyed");a("seed");if(typeof t==="function"){r=t;t={}}if(!t)t={};t.noVerify=true;o.parseInput(e,t,function(i,a){if(i)return n.emit("error",i);var s=a.map(function(e){return e.getStream});o(e,t,function(e,i){if(e)return n.emit("error",e);if(n.destroyed)return;n.add(i,t,function(e){var t=[function(t){e.storage.load(s,t)}];if(n.dht){t.push(function(t){e.on("dhtAnnounce",t)})}d(t,function(t){if(t)return n.emit("error",t);if(r)r(e);n.emit("seed",e)})})})})};_.prototype.remove=function(e,t){var r=this;var n=r.get(e);if(!n)throw new Error("No torrent with id "+e);a("remove");r.torrents.splice(r.torrents.indexOf(n),1);n.destroy(t)};_.prototype.address=function(){var e=this;return{address:"0.0.0.0",family:"IPv4",port:e.torrentPort}};_.prototype.destroy=function(e){var t=this;t.destroyed=true;a("destroy");var r=t.torrents.map(function(e){return function(r){t.remove(e.infoHash,r)}});if(t.dht){r.push(function(e){t.dht.destroy(e)})}d(r,e)}}).call(this,e("_process"),typeof global!=="undefined"?global:typeof self!=="undefined"?self:typeof window!=="undefined"?window:{},e("buffer").Buffer)},{"./lib/fs-storage":44,"./lib/storage":5,"./lib/torrent":6,"./package.json":194,_process:52,"bittorrent-dht/client":44,buffer:45,"create-torrent":71,debug:108,events:49,hat:115,inherits:116,"load-ip-set":44,"parse-torrent":121,"run-parallel":136,speedometer:142,xtend:192,"zero-fill":193}],2:[function(e,t,r){t.exports=f;var n=e("debug")("webtorrent:file-stream");var i=e("inherits");var o=e("path");var a=e("stream");var s=e("./media-stream");i(f,a.Readable);function f(e,t){var r=this;if(!(r instanceof f))return new f(e,t);a.Readable.call(r,t);n("new filestream %s",JSON.stringify(t));if(!t)t={};if(!t.start)t.start=0;if(!t.end)t.end=e.length-1;r.length=t.end-t.start+1;var i=t.start+e.offset;var s=t.pieceLength;r.startPiece=i/s|0;r.endPiece=(t.end+e.offset)/s|0;r._extname=o.extname(e.name);r._storage=e.storage;r._piece=r.startPiece;r._missing=r.length;r._reading=false;r._notifying=false;r._destroyed=false;r._criticalLength=Math.min(1024*1024/s|0,2);r._offset=i-r.startPiece*s}f.prototype._read=function(){n("_read");var e=this;if(e._reading)return;e._reading=true;e.notify()};f.prototype.notify=function(){n("notify");var e=this;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;n("before read %s",t);e._storage.read(e._piece++,function(r,i){n("after read %s (length %s) (err %s)",t,i.length,r&&r.message);e._notifying=false;if(e._destroyed)return;if(r){e._storage.emit("error",r);return e.destroy(r)}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;n("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 r=a.Readable.prototype.pipe;if(e&&(e.nodeName==="VIDEO"||e.nodeName==="AUDIO")){var n={".webm":'video/webm; codecs="vorbis,vp8"',".mp4":'video/mp4; codecs="avc1.42c01e,mp4a.40.2"',".mp3":"audio/mpeg"}[t._extname];return r.call(t,new s(e,{type:n}))}else{return r.call(t,e)}};f.prototype.destroy=function(){var e=this;if(e._destroyed)return;e._destroyed=true}},{"./media-stream":3,debug:108,inherits:116,path:51,stream:68}],3:[function(e,t,r){t.exports=f;var n=e("debug")("webtorrent:media-stream");var i=e("inherits");var o=e("once");var a=e("stream");var s=typeof window!=="undefined"&&window.MediaSource;i(f,a.Writable);function f(e,t){var r=this;if(!(r instanceof f))return new f(e,t);a.Writable.call(r,t);if(!s)throw new Error("web browser lacks MediaSource support");r.media=e;t=t||{};t.type=t.type||'video/webm; codecs="vorbis,vp8"';n("new mediastream %s %s",e,JSON.stringify(t));r._mediaSource=new s;r._sourceBuffer=null;r._cb=null;r.media.src=window.URL.createObjectURL(r._mediaSource);var i=o(function(){r._sourceBuffer=r._mediaSource.addSourceBuffer(t.type);r._sourceBuffer.addEventListener("updateend",r._flow.bind(r));r._flow()});r._mediaSource.addEventListener("webkitsourceopen",i,false);r._mediaSource.addEventListener("sourceopen",i,false);r.on("finish",function(){n("finish");r._mediaSource.endOfStream()});window.vs=r}f.prototype._write=function(e,t,r){var i=this;if(!i._sourceBuffer){i._cb=function(n){if(n)return r(n);i._write(e,t,r)};return}if(i._sourceBuffer.updating){return r(new Error("Cannot append buffer while source buffer updating"))}i._sourceBuffer.appendBuffer(e);n("appendBuffer %s",e.length);i._cb=r};f.prototype._flow=function(){var e=this;n("flow");if(e._cb){e._cb(null)}}},{debug:108,inherits:116,once:120,stream:68}],4:[function(e,t,r){t.exports=n;function n(e,t){var r=this;r.swarm=e;r.numPieces=t;function n(e){e.on("have",function(e){r.pieces[e]++});e.on("bitfield",r.recalculate.bind(r));e.on("close",function(){for(var t=0;t<r.numPieces;++t){r.pieces[t]-=e.peerPieces.get(t)}})}r.swarm.wires.forEach(n);r.swarm.on("wire",function(e){r.recalculate();n(e)});r.recalculate()}n.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 r=0;r<e.numPieces;++r){e.pieces[r]+=t.peerPieces.get(r)}})};n.prototype.getRarestPiece=function(e){var t=this;var r=[];var n=Infinity;e=e||function(){return true};for(var i=0;i<t.numPieces;++i){if(!e(i))continue;var o=t.pieces[i];if(o===n){r.push(i)}else if(o<n){r=[i];n=o}}if(r.length>0){return r[Math.random()*r.length|0]}else{return-1}}},{}],5:[function(e,t,r){(function(r,n){t.exports=k;var i=e("bitfield");var o=e("block-stream2");var a=e("debug")("webtorrent:storage");var s=e("dezalgo");var f=e("end-of-stream");var u=e("events").EventEmitter;var c=e("./file-stream");var l=e("inherits");var h=e("multistream");var d=e("once");var p=e("simple-sha1");var g=16*1024;var m=0;var v=1;var y=2;function b(){}l(w,u);function w(e,t,r,n){var i=this;u.call(i);if(!a.enabled)i.setMaxListeners(0);i.index=e;i.hash=t;i.noVerify=!!n;if(typeof r==="number"){i.buffer=null;i.length=r}else{i.buffer=r;i.length=r.length}i._reset()}w.prototype.readBlock=function(e,t,r){var n=this;r=s(r);if(!n.buffer||!n._verifyOffset(e)){return r(new Error("invalid block offset "+e))}r(null,n.buffer.slice(e,e+t))};w.prototype.writeBlock=function(e,t,r){var n=this;r=s(r);if(!n._verifyOffset(e)||!n._verifyBlock(e,t)){return r(new Error("invalid block "+e+":"+t.length))}n._lazyAllocBuffer();var i=e/g;if(n.blocks[i]===y){return r(null)}t.copy(n.buffer,e);n.blocks[i]=y;n.blocksWritten+=1;if(n.blocksWritten===n.blocks.length){n.verify()}r(null)};w.prototype.reserveBlock=function(e){var t=this;var r=t.blocks.length;for(var n=0;n<r;n++){if(t.blocks[n]&&!e||t.blocks[n]===y){continue}t.blocks[n]=v;return{offset:n*g,length:n===r-1?t.length-n*g:g}}return null};w.prototype.cancelBlock=function(e){var t=this;if(!t._verifyOffset(e)){return false}var r=e/g;if(t.blocks[r]===v){t.blocks[r]=m}return true};w.prototype._reset=function(){var e=this;e.verified=false;e.blocks=new n(Math.ceil(e.length/g));e.blocks.fill(0);e.blocksWritten=0};w.prototype.verify=function(e){var t=this;e=e||t.buffer;if(t.verified||!e){return}if(t.noVerify){t.verified=true;r();return}p(e,function(e){t.verified=e===t.hash;r()});function r(){if(t.verified){t.emit("done")}else{t.emit("warning",new Error("piece "+t.index+" failed verification"));t._reset()}}};w.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}};w.prototype._verifyBlock=function(e,t){var r=this;if(t.length===g){return true}else if(t.length===r.length-e&&r.length-e<g){return true}else{r.emit("warning",new Error("invalid block size "+t.length));return false}};w.prototype._lazyAllocBuffer=function(){var e=this;if(!e.buffer){e.buffer=new n(e.length)}};l(_,u);function _(e,t,r,n){var i=this;u.call(i);if(!a.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=r;i.pieceLength=n;i.done=false;i.pieces.forEach(function(e){e.on("done",function(){i._checkDone()})});i._checkDone()}_.prototype.select=function(){var e=this;if(e.pieces.length>0){var t=e.pieces[0].index;var r=e.pieces[e.pieces.length-1].index;e.storage.emit("select",t,r,false)}};_.prototype.deselect=function(){var e=this;if(e.pieces.length>0){var t=e.pieces[0].index;var r=e.pieces[e.pieces.length-1].index;e.storage.emit("deselect",t,r,false)}};_.prototype.createReadStream=function(e){var t=this;if(!e)e={};if(e.pieceLength==null)e.pieceLength=t.pieceLength;var r=new c(t,e);t.storage.emit("select",r.startPiece,r.endPiece,true,r.notify.bind(r));f(r,function(){t.storage.emit("deselect",r.startPiece,r.endPiece,true)});return r};_.prototype.getBlobURL=function(e){var t=this;e=s(e);if(typeof window==="undefined"||window.URL===undefined||window.Blob===undefined){return e(new Error("file.blobURL requires window.URL and window.Blob support"))}var r=t.storage.buffer.slice(t.offset,t.offset+t.length);var n=window.URL.createObjectURL(new window.Blob([r]));e(null,n)};_.prototype.getBuffer=function(e){var t=this;e=s(d(e));var r;if(t.storage.buffer){r=t.storage.buffer.slice(t.offset,t.offset+t.length);e(null,r);return}r=new n(t.length);var i=0;t.createReadStream().on("data",function(e){e.copy(r,i);i+=e.length}).on("end",function(){e(null,r)}).on("error",e)};_.prototype._checkDone=function(){var e=this;e.done=e.pieces.every(function(e){return e.verified});if(e.done){r.nextTick(function(){e.emit("done")})}};l(k,u);function k(e,t){var r=this;u.call(r);if(!a.enabled)r.setMaxListeners(0);if(!t)t={};r.bitfield=new i(e.pieces.length);r.done=false;r.closed=false;r.readonly=true;if(!t.nobuffer){r.buffer=new n(e.length)}var o=r.pieceLength=e.pieceLength;var s=e.lastPieceLength;var f=e.pieces.length;r.pieces=e.pieces.map(function(e,n){var i=n*o;var a=i+(n===f-1?s:o);var u=r.buffer?r.buffer.slice(i,a):a-i;var c=new w(n,e,u,!!t.noVerify);c.on("done",r._onPieceDone.bind(r,c));return c});r.files=e.files.map(function(e){var t=e.offset;var n=t+e.length-1;var i=t/o|0;var a=n/o|0;var s=r.pieces.slice(i,a+1);var f=new _(r,e,s,o);f.on("done",r._onFileDone.bind(r,f));return f})}k.BLOCK_LENGTH=g;k.prototype.load=function(e,t){var r=this;if(!Array.isArray(e))e=[e];t=d(t||function(){});var n=0;var i=new h(e);var a=new o(r.pieceLength,{zeroPadding:false});i.on("error",f);r.once("done",u);i.pipe(a).on("data",s).on("error",f);function s(e){var t=n;n+=1;var i=0;var a=new o(g,{zeroPadding:false});a.on("data",s);a.on("end",f);function s(e){var n=i*g;i+=1;r.writeBlock(t,n,e)}function f(){u()}function u(){a.removeListener("data",s);a.removeListener("end",f)}a.end(e)}function f(e){c();t(e)}function u(){c();t(null)}function c(){i.removeListener("error",f);a.removeListener("data",s);a.removeListener("error",f);r.removeListener("done",u)}};Object.defineProperty(k.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(k.prototype,"numMissing",{get:function(){var e=this;var t=e.pieces.length;for(var r=0,n=e.pieces.length;r<n;r++){t-=e.bitfield.get(r)}return t}});k.prototype.readBlock=function(e,t,r,n){var i=this;n=s(n);var o=i.pieces[e];if(!o)return n(new Error("invalid piece index "+e));o.readBlock(t,r,n)};k.prototype.writeBlock=function(e,t,r,n){var i=this;if(!n)n=b;n=s(n);if(i.readonly)return n(new Error("cannot write to readonly storage"));var o=i.pieces[e];if(!o)return n(new Error("invalid piece index "+e));o.writeBlock(t,r,n)};k.prototype.read=function(e,t,r,i){var o=this;if(typeof t==="function"){i=r;r=t;t=null}r=s(r);var a=o.pieces[e];if(!a){return r(new Error("invalid piece index "+e))}if(!a.verified&&!i){return r(new Error("Storage.read called on incomplete piece "+e))}var f=0;var u=a.length;if(t){f=t.offset||0;u=t.length||u}if(a.buffer){return r(null,a.buffer.slice(f,f+u))}var c=[];function l(){if(u<=0)return r(null,n.concat(c));var t=f;var i=Math.min(g,u);f+=i;u-=i;o.readBlock(e,t,i,function(e,t){if(e)return r(e);c.push(t);l()})}l()};k.prototype.reserveBlock=function(e,t){var r=this;var n=r.pieces[e];if(!n)return null;return n.reserveBlock(t)};k.prototype.cancelBlock=function(e,t){var r=this;var n=r.pieces[e];if(!n)return false;return n.cancelBlock(t)};k.prototype.remove=function(e){if(e)s(e)(null)};k.prototype.close=function(e){var t=this;t.closed=true;if(e)s(e)(null)};k.prototype._onPieceDone=function(e){var t=this;t.bitfield.set(e.index);a("piece done "+e.index+" ("+t.numMissing+" still missing)");t.emit("piece",e)};k.prototype._onFileDone=function(e){var t=this;a("file done "+e.name);t.emit("file",e);t._checkDone()};k.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,_process:52,bitfield:8,"block-stream2":32,buffer:45,debug:108,dezalgo:111,"end-of-stream":114,events:49,inherits:116,multistream:117,once:120,"simple-sha1":140}],6:[function(e,t,r){(function(r,n){t.exports=R;var i=e("addr-to-ip-port");var o=e("create-torrent");var a=e("debug")("webtorrent:torrent");var s=e("torrent-discovery");var f=e("events").EventEmitter;var u=e("fs");var c=e("simple-get");var l=e("inherits");var h=e("run-parallel");var d=e("parse-torrent");var p=e("re-emitter");var g=e("bittorrent-swarm");var m=e("uniq");var v=e("ut_metadata");var y=e("ut_pex");var b=e("./rarity-map");var w=e("./server");var _=e("./storage");var k=128*1024;var E=1e4;var x=5e3;var S=3*_.BLOCK_LENGTH;var A=.5;var I=1;var C=1e4;var T=2;function L(){}l(R,f);function R(e,t){var i=this;f.call(i);if(!a.enabled)i.setMaxListeners(0);a("new torrent");i.opts=t;i.client=t.client;i.hotswapEnabled="hotswap"in t?t.hotswap:true;i.verify=t.verify;i.chokeTimeout=t.chokeTimeout||x;i.pieceTimeout=t.pieceTimeout||E;i.strategy=t.strategy||"sequential";i._rechokeNumSlots=t.uploads===false||t.uploads===0?0:+t.uploads||10;i._rechokeOptimisticWire=null;i._rechokeOptimisticTime=0;i._rechokeIntervalId=null;i.ready=false;i.files=[];i.metadata=null;i.parsedTorrent=null;i.storage=null;i.numBlockedPeers=0;i._amInterested=false;i._destroyed=false;i._selections=[];i._critical=[];i._storageImpl=t.storage||_;var s;try{s=e&&e.parsedTorrent||d(e)}catch(l){}if(s&&s.infoHash){h(s)}else if(typeof c==="function"&&/^https?:/.test(e)){c.concat({url:e,headers:{"user-agent":"WebTorrent (http://webtorrent.io)"}},function(e,t){if(e){e=new Error("Error downloading torrent: "+e.message);return i.emit("error",e)}h(t)})}else if(typeof u.readFile==="function"){u.readFile(e,function(e,t){if(e)return i.emit("error",new Error("Invalid torrent identifier"));h(t)})}else throw new Error("Invalid torrent identifier");function h(e){try{i.parsedTorrent=d(e)}catch(t){return i.emit("error",new Error("Malformed torrent data: "+t.message))}i.infoHash=i.parsedTorrent.infoHash;if(!i.infoHash){return i.emit("error",new Error("Malformed torrent data: Missing info hash."))}if(i.parsedTorrent.name)i.name=i.parsedTorrent.name;if(i.parsedTorrent.announce.length===0){i.parsedTorrent.announce=[].concat.apply([],o.announce)}if(n.WEBTORRENT_ANNOUNCE){n.WEBTORRENT_ANNOUNCE.forEach(function(e){i.parsedTorrent.announce.push(e)});m(i.parsedTorrent.announce)}i.swarm=new g(i.infoHash,i.client.peerId,{handshake:{dht:!!i.client.dht}});p(i.swarm,i,["warning","error"]);i.swarm.on("wire",i._onWire.bind(i));i.swarm.on("download",i.client.downloadSpeed.bind(i.client));i.swarm.on("upload",i.client.uploadSpeed.bind(i.client));i.swarm.listen(i.client.torrentPort,i._onSwarmListening.bind(i));r.nextTick(function(){i.emit("infoHash")})}}Object.defineProperty(R.prototype,"length",{get:function(){return this.parsedTorrent&&this.parsedTorrent.length||0}});Object.defineProperty(R.prototype,"timeRemaining",{get:function(){if(this.swarm.downloadSpeed()===0)return Infinity;else return(this.length-this.downloaded)/this.swarm.downloadSpeed()*1e3}});Object.defineProperty(R.prototype,"progress",{get:function(){return this.parsedTorrent&&this.downloaded/this.parsedTorrent.length||0}});Object.defineProperty(R.prototype,"downloaded",{get:function(){return this.storage&&this.storage.downloaded||0}});Object.defineProperty(R.prototype,"uploaded",{get:function(){return this.swarm.uploaded}});Object.defineProperty(R.prototype,"ratio",{get:function(){return this.uploaded&&this.downloaded/this.uploaded||0}});Object.defineProperty(R.prototype,"magnetURI",{get:function(){return d.toMagnetURI(this.parsedTorrent)}});R.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.setTorrent(e.infoHash);e.discovery.on("peer",e.addPeer.bind(e));p(e.discovery,e,["dhtAnnounce","warning","error"]);if(e.parsedTorrent.info)e._onMetadata(e.parsedTorrent);e.emit("listening",e.client.torrentPort)};R.prototype._onMetadata=function(e){var t=this;if(t.metadata||t._destroyed)return;a("got metadata");if(e&&e.infoHash){t.metadata=d.toTorrentFile(e);t.parsedTorrent=e}else{t.metadata=e;try{t.parsedTorrent=d(t.metadata)}catch(n){return t.emit("error",n)}}t.name=t.parsedTorrent.name;t.discovery.setTorrent(t.parsedTorrent);t.rarityMap=new b(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();a("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){r.nextTick(function(){a("verifying existing torrent data");var e=0;var r=0;h(t.storage.pieces.map(function(n){return function(i){t.storage.read(n.index,function(o,s){e+=1;t.emit("verifying",{percentDone:100*e/t.storage.pieces.length,percentVerified:100*r/t.storage.pieces.length});if(!o&&s){n.verify(s);r+=n.verified;a("piece "+(n.verified?"verified":"invalid")+" "+n.index)}i()},true)}}),t._onStorage.bind(t))})}else{r.nextTick(t._onStorage.bind(t))}r.nextTick(function(){t.emit("metadata")})};R.prototype.destroy=function(e){var t=this;a("destroy");t._destroyed=true;clearInterval(t._rechokeIntervalId);var r=[];if(t.swarm)r.push(function(e){t.swarm.destroy(e)});if(t.discovery)r.push(function(e){t.discovery.stop(e)});if(t.storage)r.push(function(e){t.storage.close(e)});h(r,e)};R.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}};R.prototype.select=function(e,t,r,n){var i=this;if(e>t||e<0||t>=i.storage.pieces.length){throw new Error("invalid selection ",e,":",t)}r=Number(r)||0;a("select %s-%s (priority %s)",e,t,r);i._selections.push({from:e,to:t,offset:0,priority:r,notify:n||L});i._selections.sort(function(e,t){return t.priority-e.priority});i._updateSelections()};R.prototype.deselect=function(e,t,r){var n=this;r=Number(r)||0;a("deselect %s-%s (priority %s)",e,t,r);for(var i=0;i<n._selections.length;++i){var o=n._selections[i];if(o.from===e&&o.to===t&&o.priority===r){n._selections.splice(i--,1);break}}n._updateSelections()};R.prototype.critical=function(e,t){var r=this;a("critical %s-%s",e,t);for(var n=e;n<=t;++n){r._critical[n]=true}r._updateSelections()};R.prototype._onWire=function(e,t){var r=this;if(t){var n=i(t);e.remoteAddress=n[0];e.remotePort=n[1]}e.use(v(r.metadata));if(!r.metadata){e.ut_metadata.on("metadata",function(e){a("got metadata via ut_metadata");r._onMetadata(e)});e.ut_metadata.fetch()}if(typeof y==="function"){e.use(y());e.ut_pex.on("peer",function(e){a("ut_pex: got peer: %s (from %s)",e,t);r.addPeer(e)});e.ut_pex.on("dropped",function(e){a("ut_pex: dropped peer: %s (from %s)",e,t);if(!(e in r.swarm._peers))r.swarm._removePeer(e)})}e.setKeepAlive(true);if(e.peerExtensions.dht&&r.client.dht&&r.client.dht.listening){e.port(r.client.dht.address().port)}e.on("port",function(e){a("port: %s (from %s)",e,t);var n=i(t);if(r.client.dht)r.client.dht.addNode(n[0]+":"+e)});e.on("timeout",function(){a("wire timeout (%s)",t);e.destroy()});e.setTimeout(r.pieceTimeout,true);if(r.metadata){r._onWireWithMetadata(e)}};R.prototype._onWireWithMetadata=function(e){var t=this;var r=null;var n=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{r=setTimeout(i,n);if(r.unref)r.unref()}}var o=0;function s(){if(e.peerPieces.length!==t.storage.pieces.length)return;for(;o<t.storage.pieces.length;++o){if(!e.peerPieces.get(o))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(r)});e.on("choke",function(){clearTimeout(r);r=setTimeout(i,n);if(r.unref)r.unref()});e.on("unchoke",function(){clearTimeout(r);t._update()});e.on("request",function(r,n,i,o){if(i>k){a("got invalid block size request %s (from %s)",i,e.remoteAddress+":"+e.remotePort);return e.destroy()}t.storage.readBlock(r,n,i,o)});e.bitfield(t.storage.bitfield);e.interested();r=setTimeout(i,n);if(r.unref)r.unref();e.isSeeder=false;s()};R.prototype._onStorage=function(){var e=this;if(e._destroyed)return;a("on storage");e.storage.readonly=false;e.select(0,e.storage.pieces.length-1,false);e._rechokeIntervalId=setInterval(e._rechoke.bind(e),C);if(e._rechokeIntervalId.unref)e._rechokeIntervalId.unref();r.nextTick(function(){e.ready=true;e.emit("ready")})};R.prototype._onStoragePiece=function(e){var t=this;a("piece done %s",e.index);t._reservations[e.index]=null;t.swarm.wires.forEach(function(t){t.have(e.index)});t._gcSelections()};R.prototype._updateSelections=function(){var e=this;if(!e.swarm||e._destroyed)return;if(!e.metadata)return e.once("metadata",e._updateSelections.bind(e));r.nextTick(e._gcSelections.bind(e));e._updateInterest();e._update()};R.prototype._gcSelections=function(){var e=this;for(var t=0;t<e._selections.length;t++){var r=e._selections[t];var n=r.offset;while(e.storage.bitfield.get(r.from+r.offset)&&r.from+r.offset<r.to){r.offset++}if(n!==r.offset)r.notify();if(r.to!==r.from+r.offset)continue;if(!e.storage.bitfield.get(r.from+r.offset))continue;e._selections.splice(t--,1);r.notify();e._updateInterest()}if(!e._selections.length)e.emit("idle")};R.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")};R.prototype._update=function(){var e=this;if(e._destroyed)return;P(e.swarm.wires,e._updateWire.bind(e))};R.prototype._updateWire=function(e){var t=this;if(e.peerChoking)return;if(!e.downloaded)return o();var r=B(e,A);if(e.requests.length>=r)return;var n=B(e,I);f(false)||f(true);function i(t,r,n,i){return function(o){return o>=t&&o<=r&&!(o in n)&&e.peerPieces.get(o)&&(!i||i(o))}}function o(){if(e.requests.length)return;for(var r=t._selections.length;r--;){var n=t._selections[r];var o;if(t.strategy==="rarest"){var a=n.from+n.offset;var s=n.to;var f=s-a+1;var u={};var c=0;var l=i(a,s,u);while(c<f){o=t.rarityMap.getRarestPiece(l);if(o<0)break;if(t._request(e,o,false))return;u[o]=true;c+=1}}else{for(o=n.to;o>=n.from+n.offset;--o){if(!e.peerPieces.get(o))continue;if(t._request(e,o,false))return}}}}function a(){var r=e.downloadSpeed()||1;if(r>S)return function(){return true};var n=Math.max(1,e.requests.length)*_.BLOCK_LENGTH/r;var i=10;var o=0;return function(e){if(!i||t.storage.bitfield.get(e))return true;var a=t.storage.pieces[e];var s=a.blocks.length-a.blocksWritten;for(;o<t.swarm.wires.length;o++){var f=t.swarm.wires[o];var u=f.downloadSpeed();if(u<S)continue;if(u<=r)continue;if(!f.peerPieces.get(e))continue;if((s-=u*n)>0)continue;i--;return false}return true}}function s(e){var r=e;for(var n=e;n<t._selections.length&&t._selections[n].priority;n++){r=n}var i=t._selections[e];t._selections[e]=t._selections[r];t._selections[r]=i}function f(r){if(e.requests.length>=n)return true;var o=a();for(var f=0;f<t._selections.length;f++){var u=t._selections[f];var c;if(t.strategy==="rarest"){var l=u.from+u.offset;var h=u.to;var d=h-l+1;var p={};var g=0;var m=i(l,h,p,o);while(g<d){c=t.rarityMap.getRarestPiece(m);if(c<0)break;while(t._request(e,c,t._critical[c]||r)){}if(e.requests.length<n){p[c]=true;g++;continue}if(u.priority)s(f);return true}}else{for(c=u.from+u.offset;c<=u.to;c++){if(!e.peerPieces.get(c)||!o(c))continue;while(t._request(e,c,t._critical[c]||r)){}if(e.requests.length<n)continue;if(u.priority)s(f);return true}}}return false}};R.prototype._rechoke=function(){var e=this;if(e._rechokeOptimisticTime>0)e._rechokeOptimisticTime-=1;else e._rechokeOptimisticWire=null;var t=[];e.swarm.wires.forEach(function(r){if(!r.isSeeder&&r!==e._rechokeOptimisticWire){t.push({wire:r,downloadSpeed:r.downloadSpeed(),uploadSpeed:r.uploadSpeed(),salt:Math.random(),isChoked:true})}});t.sort(a);var r=0;var n=0;for(;n<t.length&&r<e._rechokeNumSlots;++n){t[n].isChoked=false;if(t[n].wire.peerInterested)r+=1}if(!e._rechokeOptimisticWire&&n<t.length&&e._rechokeNumSlots){var i=t.slice(n).filter(function(e){return e.wire.peerInterested});var o=i[M(i.length)];if(o){o.isChoked=false;e._rechokeOptimisticWire=o.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 a(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}};R.prototype._hotswap=function(e,t){var r=this;if(!r.hotswapEnabled)return false;var n=e.downloadSpeed();if(n<_.BLOCK_LENGTH)return false;if(!r._reservations[t])return false;var i=r._reservations[t];if(!i){return false}var o=Infinity;var a;var s;for(s=0;s<i.length;s++){var f=i[s];if(!f||f===e)continue;var u=f.downloadSpeed();if(u>=S)continue;if(2*u>n||u>o)continue;a=f;o=u}if(!a)return false;for(s=0;s<i.length;s++){if(i[s]===a)i[s]=null}for(s=0;s<a.requests.length;s++){var c=a.requests[s];if(c.piece!==t)continue;r.storage.cancelBlock(t,c.offset)}r.emit("hotswap",a,e,t);return true};R.prototype._request=function(e,t,n){var i=this;var o=e.requests.length;if(i.storage.bitfield.get(t))return false;var s=B(e,I);if(o>=s)return false;var f=e.requests.length===0&&i.storage.numMissing<30;var u=i.storage.reserveBlock(t,f);if(!u&&!f&&n&&i._hotswap(e,t)){u=i.storage.reserveBlock(t,false)}if(!u)return false;var c=i._reservations[t];if(!c){c=i._reservations[t]=[]}var l=c.indexOf(null);if(l===-1)l=c.length;c[l]=e;function h(n,o){if(!i.ready){i.once("ready",function(){h(n,o)});return}if(c[l]===e)c[l]=null;if(n){a("error getting piece %s (offset: %s length: %s) from %s: %s",t,u.offset,u.length,e.remoteAddress+":"+e.remotePort,n.message);i.storage.cancelBlock(t,u.offset);r.nextTick(i._update.bind(i));return false}else{a("got piece %s (offset: %s length: %s) from %s",t,u.offset,u.length,e.remoteAddress+":"+e.remotePort);i.storage.writeBlock(t,u.offset,o,function(e){if(e){a("error writing block");i.storage.cancelBlock(t,u.offset)}r.nextTick(i._update.bind(i))})}}e.request(t,u.offset,u.length,h);return true};R.prototype.createServer=function(e){var t=this;if(typeof w==="function"){return new w(t,e)}};function B(e,t){return Math.ceil(2+t*e.downloadSpeed()/_.BLOCK_LENGTH)}function M(e){return Math.random()*e|0}function P(e,t){var r=e.map(function(e,t){return t});for(var n=r.length-1;n>0;--n){var i=M(n+1);var o=r[n];r[n]=r[i];r[i]=o}r.forEach(function(r){t(e[r],r,e)})}}).call(this,e("_process"),typeof global!=="undefined"?global:typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{"./rarity-map":4, -"./server":44,"./storage":5,_process:52,"addr-to-ip-port":7,"bittorrent-swarm":9,"create-torrent":71,debug:108,events:49,fs:43,inherits:116,"parse-torrent":121,"re-emitter":135,"run-parallel":136,"simple-get":44,"torrent-discovery":143,uniq:182,ut_metadata:183,ut_pex:44}],7:[function(e,t,r){var n=/^\[?([^\]]+)\]?:(\d+)$/;var i={};var o=0;t.exports=function a(e){if(o===1e5)i={};if(!i[e]){var t=n.exec(e);if(!t)throw new Error("invalid addr: "+e);i[e]=[t[1],Number(t[2])];o+=1}return i[e]};t.exports.reset=function s(){i={}}},{}],8:[function(e,t,r){(function(e){var r=typeof e!=="undefined"?e:typeof Int8Array!=="undefined"?Int8Array:function(e){var t=new Array(e);for(var r=0;r<e;r++)t[r]=0};function n(e,t){if(!(this instanceof n)){return new n(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 r(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}n.prototype.get=function(e){var t=e>>3;return t<this.buffer.length&&!!(this.buffer[t]&128>>e%8)};n.prototype.set=function(e,t){var r=e>>3;if(t||arguments.length===1){if(this.buffer.length<r+1)this._grow(Math.max(r+1,Math.min(2*this.buffer.length,this.grow)));this.buffer[r]|=128>>e%8}else if(r<this.buffer.length){this.buffer[r]&=~(128>>e%8)}};n.prototype._grow=function(e){if(this.buffer.length<e&&e<=this.grow){var t=new r(e);if(t.fill)t.fill(0);if(this.buffer.copy)this.buffer.copy(t,0);else{for(var n=0;n<this.buffer.length;n++){t[n]=this.buffer[n]}}this.buffer=t}};if(typeof t!=="undefined")t.exports=n}).call(this,e("buffer").Buffer)},{buffer:45}],9:[function(e,t,r){(function(r,n){t.exports=g;var i=e("addr-to-ip-port");var o=e("debug")("bittorrent-swarm");var a=e("dezalgo");var s=e("events").EventEmitter;var f=e("inherits");var u=e("net");var c=e("./lib/peer");var l=e("speedometer");var h=e("./lib/tcp-pool");var d=55;var p=[1e3,5e3,15e3];f(g,s);function g(e,t,r){var i=this;if(!(i instanceof g))return new g(e,t,r);s.call(i);i.infoHash=typeof e==="string"?new n(e,"hex"):e;i.infoHashHex=i.infoHash.toString("hex");i.peerId=typeof t==="string"?new n(t,"hex"):t;i.peerIdHex=i.peerId.toString("hex");if(!r)r={};o("new swarm (i %s p %s)",i.infoHashHex,i.peerIdHex);i.handshakeOpts=r.handshake;i.maxConns=r.maxConns!==undefined?r.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(g.prototype,"ratio",{get:function(){var e=this;return e.uploaded/e.downloaded||0}});Object.defineProperty(g.prototype,"numQueued",{get:function(){var e=this;return e._queue.length+(e._peersLength-e.numConns)}});Object.defineProperty(g.prototype,"numConns",{get:function(){var e=this;var t=0;for(var r in e._peers){var n=e._peers[r];if(n&&n.conn)t+=1}return t}});Object.defineProperty(g.prototype,"numPeers",{get:function(){var e=this;return e.wires.length}});g.prototype.addPeer=function(e){var t=this;if(t.destroyed){if(e&&e.destroy)e.destroy();return}if(typeof e==="string"&&!t._validAddr(e)){o("ignoring invalid peer %s (from swarm.addPeer)",e);return}var r=e&&e.id||e;if(t._peers[r])return;o("addPeer %s",r);var n;if(typeof e==="string"){n=c.createOutgoingTCPPeer(e,t);t._queue.push(n);t._drain()}else{n=c.createWebRTCPeer(e,t)}t._peers[n.id]=n;t._peersLength+=1};g.prototype._addIncomingPeer=function(e){var t=this;if(t.destroyed||t.paused)return e.destroy();if(!t._validAddr(e.addr)){o("ignoring invalid peer %s (from incoming)",e.addr);return e.destroy()}t._peers[e.id]=e;t._peersLength+=1};g.prototype._removePeer=function(e){var t=this;var r=t._peers[e];if(!r)return;o("_removePeer %s",e);t._peers[e]=null;t._peersLength-=1;r.destroy()};g.prototype.pause=function(){var e=this;if(e.destroyed)return;o("pause");e.paused=true};g.prototype.resume=function(){var e=this;if(e.destroyed)return;o("resume");e.paused=false;e._drain()};g.prototype.listen=function(e,t,n){var i=this;if(typeof t==="function"){n=t;t=undefined}if(n)n=a(n);if(i.listening)throw new Error("swarm already listening");if(r.browser){n()}else{i._port=e||h.getDefaultListenPort(i.infoHashHex);i._hostname=t;if(n)i.once("listening",n);o("listen %s",e);var s=h.addSwarm(i);i.server=s.server}};g.prototype._onListening=function(e){var t=this;t._port=e;t.listening=true;t.emit("listening")};g.prototype.address=function(){var e=this;return e.server.address()};g.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);o("destroy");for(var n in t._peers){t._removePeer(n)}h.removeSwarm(t);r.nextTick(function(){t.emit("close")})};g.prototype._drain=function(){var e=this;if(typeof u.connect!=="function"||e.destroyed||e.paused||e.numConns>=e.maxConns){return}o("drain (%s queued, %s/%s peers)",e.numQueued,e.numPeers,e.maxConns);var t=e._queue.shift();if(!t)return;o("tcp connect attempt to %s",t.addr);var r=i(t.addr);var n=t.conn=u.connect({port:r[1],host:r[0],localAddress:e._hostname});n.once("connect",function(){t.onConnect()});n.once("error",function(){t.destroy()});t.setTimeout();n.on("close",function(){if(e.destroyed||t.retries>=p.length){return}function r(){var r=c.createOutgoingTCPPeer(t.addr,e);r.retries=t.retries+1;e._queue.push(r);e._drain()}var n=setTimeout(r,p[t.retries]);if(n.unref)n.unref()})};g.prototype._onError=function(e){var t=this;t.emit("error",e);t.destroy()};g.prototype._validAddr=function(e){var t=this;var r=i(e);var n=r[0];var o=r[1];return o>0&&o<65535&&!(n==="127.0.0.1"&&o===t._port)}}).call(this,e("_process"),e("buffer").Buffer)},{"./lib/peer":10,"./lib/tcp-pool":11,_process:52,"addr-to-ip-port":44,buffer:45,debug:24,dezalgo:27,events:49,inherits:30,net:44,speedometer:31}],10:[function(e,t,r){var n=e("bittorrent-protocol");var i=25e3;r.createWebRTCPeer=function(e,t){var r=new o(e.id);r.conn=e;r.swarm=t;if(r.conn.connected){r.onConnect()}else{r.conn.once("connect",function(){r.onConnect()});r.conn.once("error",function(){r.destroy()});r.setTimeout()}return r};r.createIncomingTCPPeer=function(e,t){var r=new o(t);r.conn=e;r.addr=e.remoteAddress+":"+e.remotePort;r.onConnect();return r};r.createOutgoingTCPPeer=function(e,t){var r=new o(e);r.swarm=t;r.addr=e;return r};function o(e){var t=this;t.id=e;t.addr=null;t.conn=null;t.swarm=null;t.wire=null;t.destroyed=false;t.timeout=null;t.retries=0;t.gotHandshake=false;t.sentHandshake=false}o.prototype.onConnect=function(){var e=this;function t(){e.destroy()}var r=e.conn;r.once("end",t);r.once("close",t);r.once("finish",t);r.once("error",t);var i=e.wire=new n;i.once("end",t);i.once("finish",t);i.once("error",t);i.once("handshake",function(t){e.onHandshake(t)});e.setTimeout();r.pipe(i).pipe(r);if(e.swarm)e.handshake()};o.prototype.onHandshake=function(e){var t=this;if(!t.swarm)return;if(t.swarm.destroyed||e.toString("hex")!==t.swarm.infoHashHex){t.destroy();return}t.clearTimeout();t.gotHandshake=true;t.retries=0;t.wire.on("download",function(e){t.swarm.downloaded+=e;t.swarm.downloadSpeed(e);t.swarm.emit("download",e)});t.wire.on("upload",function(e){t.swarm.uploaded+=e;t.swarm.uploadSpeed(e);t.swarm.emit("upload",e)});if(!t.sentHandshake)t.handshake();t.swarm.wires.push(t.wire);var r=t.addr;if(!r&&t.conn.remoteAddress){r=t.conn.remoteAddress+":"+t.conn.remotePort}t.swarm.emit("wire",t.wire,r)};o.prototype.handshake=function(){var e=this;e.wire.handshake(e.swarm.infoHash,e.swarm.peerId,e.swarm.handshakeOpts);e.sentHandshake=true};o.prototype.setTimeout=function(){var e=this;if(e.timeout)clearTimeout(e.timeout);e.timeout=setTimeout(function(){e.destroy()},i);if(e.timeout.unref)e.timeout.unref()};o.prototype.clearTimeout=function(){var e=this;if(e.timeout)clearTimeout(e.timeout);e.timeout=null};o.prototype.destroy=function(){var e=this;if(e.destroyed)return;e.destroyed=true;if(e.conn)e.conn.destroy();e.swarm.wires.splice(e.swarm.wires.indexOf(e.wire),1);if(e.wire)e.wire.destroy();if(e.swarm){e.swarm._removePeer(e.id);e.swarm._drain()}if(e.timeout)clearTimeout(e.timeout);e.timeout=null;e.conn=null;e.swarm=null;e.wire=null}},{"bittorrent-protocol":12}],11:[function(e,t,r){(function(r){t.exports=s;var n=e("dezalgo");var i=e("net");var o=e("./peer");var a={};function s(e,t){var r=this;r.port=e;r.listening=false;r.swarms={};r.pendingConns=[];r.server=i.createServer();r.server.on("connection",function(e){r._onConnection(e)});r.server.on("error",function(e){r._onError(e)});r.server.on("listening",function(){r._onListening()});r.server.listen(r.port,t)}s.addSwarm=function(e){var t=a[e._port];if(!t)t=a[e._port]=new s(e._port,e._hostname);t.addSwarm(e);return t};s.removeSwarm=function(e){var t=a[e._port];if(!t)return;t.removeSwarm(e);var r=0;for(var n in t.swarms){var i=t.swarms[n];if(i)r+=1}if(r===0)t.destroy()};s.getDefaultListenPort=function(e){for(var t in a){var r=a[t];if(r&&!r.swarms[e])return r.port}return 0};s.prototype.addSwarm=function(e){var t=this;if(t.listening){r.nextTick(function(){e._onListening(t.port)})}if(t.swarms[e.infoHashHex]){r.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};s.prototype.removeSwarm=function(e){var t=this;t.swarms[e.infoHashHex]=null};s.prototype.destroy=function(e){var t=this;if(e)e=n(e);t.listening=false;t.pendingConns.forEach(function(e){e.destroy()});a[t.port]=null;try{t.server.close(e)}catch(r){if(e)e(null)}};s.prototype._onListening=function(){var e=this;var t=e.server.address().port;if(t!==e.port){a[e.port]=null;e.port=t;a[e.port]=e}e.listening=true;for(var r in e.swarms){var n=e.swarms[r];if(n)n._onListening(e.port)}};s.prototype._onConnection=function(e){var t=this;t.pendingConns.push(e);e.once("close",r);function r(){t.pendingConns.splice(t.pendingConns.indexOf(e))}var n=o.createIncomingTCPPeer(e);n.wire.once("handshake",function(i){r();e.removeListener("close",r);var o=t.swarms[i.toString("hex")];if(o){n.swarm=o;o._addIncomingPeer(n);n.onHandshake(i)}else{n.destroy()}})};s.prototype._onError=function(e){var t=this;t.destroy();for(var r in t.swarms){var n=t.swarms[r];if(n){t.removeSwarm(n);n._onError(e)}}}}).call(this,e("_process"))},{"./peer":10,_process:52,dezalgo:27,net:44}],12:[function(e,t,r){(function(r){t.exports=w;var n=e("bitfield");var i=e("bencode");var o=e("debug")("bittorrent-protocol");var a=e("xtend");var s=e("inherits");var f=e("speedometer");var u=e("stream");var c=4e5;var l=new r("BitTorrent protocol");var h=new r([0,0,0,0]);var d=new r([0,0,0,1,0]);var p=new r([0,0,0,1,1]);var g=new r([0,0,0,1,2]);var m=new r([0,0,0,1,3]);var v=[0,0,0,0,0,0,0,0];var y=[0,0,0,3,9,0,0];function b(e,t,r,n){this.piece=e;this.offset=t;this.length=r;this.callback=n}s(w,u.Duplex);function w(){if(!(this instanceof w))return new w;u.Duplex.call(this);o("new wire");this.amChoking=true;this.amInterested=false;this.peerChoking=true;this.peerInterested=false;this.peerPieces=new n(0,{grow:c});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,h),6e4)};w.prototype.setTimeout=function(e,t){this._clearTimeout();this._timeoutMs=e;this._timeoutUnref=!!t;this._updateTimeout()};w.prototype.destroy=function(){this.destroyed=true;this.end()};w.prototype.end=function(){this._onUninterested();this._onChoke();u.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 r=this._nextExt;var n=new e(this);function i(){}if(typeof n.onHandshake!=="function"){n.onHandshake=i}if(typeof n.onExtendedHandshake!=="function"){n.onExtendedHandshake=i}if(typeof n.onMessage!=="function"){n.onMessage=i}this.extendedMapping[r]=t;this._ext[t]=n;this[t]=n;this._nextExt+=1};w.prototype.handshake=function(e,t,n){if(typeof e==="string")e=new r(e,"hex");if(typeof t==="string")t=new r(t,"hex");if(e.length!==20||t.length!==20){throw new Error("infoHash and peerId MUST have length 20")}var i=new r(v);i[5]|=16;if(n&&n.dht)i[7]|=1;this._push(r.concat([l,i,e,t]));this._handshakeSent=true;if(this.peerExtensions.extended){this._sendExtendedHandshake()}};w.prototype._sendExtendedHandshake=function(){var e=a(this.extendedHandshake);e.m={};for(var t in this.extendedMapping){var r=this.extendedMapping[t];e.m[r]=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(p)};w.prototype.interested=function(){if(this.amInterested)return;this.amInterested=true;this._push(g)};w.prototype.uninterested=function(){if(!this.amInterested)return;this.amInterested=false;this._push(m)};w.prototype.have=function(e){this._message(4,[e],null)};w.prototype.bitfield=function(e){if(!r.isBuffer(e))e=e.buffer;this._message(5,[],e)};w.prototype.request=function(e,t,r,n){if(!n)n=function(){};if(this._finished)return n(new Error("wire is closed"));if(this.peerChoking)return n(new Error("peer is choking"));this.requests.push(new b(e,t,r,n));this._updateTimeout();this._message(6,[e,t,r],null)};w.prototype.piece=function(e,t,r){this.uploaded+=r.length;this.uploadSpeed(r.length);this.emit("upload",r.length);this._message(7,[e,t],r)};w.prototype.cancel=function(e,t,r){this._callback(_(this.requests,e,t,r),new Error("request was cancelled"),null);this._message(8,[e,t,r],null)};w.prototype.port=function(e){var t=new r(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 n=new r([e]);var o=r.isBuffer(t)?t:i.encode(t);this._message(20,[],r.concat([n,o]))}else{throw new Error("Unrecognized extension: "+e)}};w.prototype._onKeepAlive=function(){this.emit("keep-alive")};w.prototype._onHandshake=function(e,t,r){this.peerId=t;this.peerExtensions=r;this.emit("handshake",e,t,r);var n;for(n in this._ext){this._ext[n].onHandshake(e,t,r)}if(r.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 n(e);this.emit("bitfield",this.peerPieces)};w.prototype._onRequest=function(e,t,r){if(this.amChoking)return;var n=function(n,o){if(i!==_(this.peerRequests,e,t,r))return;if(n)return;this.piece(e,t,o)}.bind(this);var i=new b(e,t,r,n);this.peerRequests.push(i);this.emit("request",e,t,r,n)};w.prototype._onPiece=function(e,t,r){this._callback(_(this.requests,e,t,r.length),null,r);this.downloaded+=r.length;this.downloadSpeed(r.length);this.emit("download",r.length);this.emit("piece",e,t,r)};w.prototype._onCancel=function(e,t,r){_(this.peerRequests,e,t,r);this.emit("cancel",e,t,r)};w.prototype._onPort=function(e){this.emit("port",e)};w.prototype._onExtended=function(e,t){var r,n;if(e===0&&(r=k(t))){this.peerExtendedHandshake=r;if(typeof r.m==="object"){for(n in r.m){this.peerExtendedMapping[n]=Number(r.m[n].toString())}}for(n in this._ext){if(this.peerExtendedMapping[n]){this._ext[n].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,n){this._bufferSize+=e.length;this._buffer.push(e);while(this._bufferSize>=this._parserSize){var i=this._buffer.length===1?this._buffer[0]:r.concat(this._buffer);this._bufferSize-=this._parserSize;this._buffer=this._bufferSize?[i.slice(this._parserSize)]:[];this._parser(i.slice(0,this._parserSize))}n(null)};w.prototype._read=function(){};w.prototype._callback=function(e,t,r){if(!e)return;this._clearTimeout();if(!this.peerChoking&&!this._finished)this._updateTimeout();e.callback(t,r)};w.prototype._clearTimeout=function(){if(!this._timeout)return;clearTimeout(this._timeout);this._timeout=null};w.prototype._updateTimeout=function(){if(!this._timeoutMs||!this.requests.length||this._timeout)return;this._timeout=setTimeout(this._onTimeout.bind(this),this._timeoutMs);if(this._timeoutUnref&&this._timeout.unref)this._timeout.unref()};w.prototype._parse=function(e,t){this._parserSize=e;this._parser=t};w.prototype._message=function(e,t,n){var i=n?n.length:0;var o=new r(5+4*t.length);o.writeUInt32BE(o.length+i-4,0);o[4]=e;for(var a=0;a<t.length;a++){o.writeUInt32BE(t[a],5+4*a)}this._push(o);if(n)this._push(n)};w.prototype._onmessagelength=function(e){var t=e.readUInt32BE(0);if(t>0){this._parse(t,this._onmessage)}else{this._onKeepAlive();this._parse(4,this._onmessagelength)}};w.prototype._onmessage=function(e){this._parse(4,this._onmessagelength);switch(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.emit("unknownmessage",e)}};w.prototype._parseHandshake=function(){this._parse(1,function(e){var t=e.readUInt8(0);this._parse(t+48,function(e){var r=e.slice(0,t);if(r.toString()!=="BitTorrent protocol"){o("Error: wire not speaking BitTorrent protocol (%s)",r.toString());this.end();return}e=e.slice(t);this._onHandshake(e.slice(8,28),e.slice(28,48),{dht:!!(e[7]&1),extended:!!(e[5]&16)});this._parse(4,this._onmessagelength)}.bind(this))}.bind(this))};w.prototype._onfinish=function(){this._finished=true;this.push(null);while(this.read()){}clearInterval(this._keepAlive);this._parse(Number.MAX_VALUE,function(){});this.peerRequests=[];while(this.requests.length){this._callback(this.requests.shift(),new Error("wire was closed"),null)}};function _(e,t,r,n){for(var i=0;i<e.length;i++){var o=e[i];if(o.piece!==t||o.offset!==r||o.length!==n)continue;if(i===0)e.shift();else e.splice(i,1);return o}return null}function k(e){try{return i.decode(e)}catch(t){console.warn(t)}}}).call(this,e("buffer").Buffer)},{bencode:13,bitfield:17,buffer:45,debug:18,inherits:21,speedometer:22,stream:68,xtend:23}],13:[function(e,t,r){t.exports={encode:e("./lib/encode"),decode:e("./lib/decode")}},{"./lib/decode":14,"./lib/encode":16}],14:[function(e,t,r){(function(r){var n=e("./dict");function i(e,t){i.position=0;i.encoding=t||null;i.data=!r.isBuffer(e)?new r(e):e;return i.next()}i.position=0;i.data=null;i.encoding=null;i.next=function(){switch(i.data[i.position]){case 100:return i.dictionary();break;case 108:return i.list();break;case 105:return i.integer();break;default:return i.bytes();break}};i.find=function(e){var t=i.position;var r=i.data.length;var n=i.data;while(t<r){if(n[t]===e)return t;t++}throw new Error('Invalid data: Missing delimiter "'+String.fromCharCode(e)+'" [0x'+e.toString(16)+"]")};i.dictionary=function(){i.position++;var e=new n;while(i.data[i.position]!==101){e.binarySet(i.bytes(),i.next())}i.position++;return 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n){case"string":r.bytes(t,n);break;case"number":r.number(t,n);break;case"object":n.constructor===Array?r.list(t,n):r.dict(t,n);break}};var n=new e("e"),i=new e("d"),o=new e("l");r.bytes=function(t,r){t.push(new e(e.byteLength(r)+":"+r))};r.number=function(t,n){var i=2147483648;var o=n/i<<0;var a=n%i<<0;var s=o*i+a;t.push(new e("i"+s+"e"));if(s!==n&&!r._floatConversionDetected){r._floatConversionDetected=true;console.warn('WARNING: Possible data corruption detected with value "'+n+'":','Bencoding only defines support for integers, value was converted to "'+s+'"');console.trace()}};r.dict=function(e,t){e.push(i);var o=0;var a;var s=Object.keys(t).sort();var f=s.length;for(;o<f;o++){a=s[o];r.bytes(e,a);r._encode(e,t[a])}e.push(n)};r.list=function(e,t){var i=0,a=1;var 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i=this._readableState;if(!i.readableListening){i.readableListening=true;i.emittedReadable=false;i.needReadable=true;if(!i.reading){var o=this;r.nextTick(function(){u("readable nexttick read 0");o.read(0)})}else if(i.length){b(this,i)}}}return n};l.prototype.addListener=l.prototype.on;l.prototype.resume=function(){var e=this._readableState;if(!e.flowing){u("resume");e.flowing=true;if(!e.reading){u("resume read 0");this.read(0)}x(this,e)}return this};function x(e,t){if(!t.resumeScheduled){t.resumeScheduled=true;r.nextTick(function(){S(e,t)})}}function S(e,t){t.resumeScheduled=false;e.emit("resume");A(e);if(t.flowing&&!t.reading)e.read(0)}l.prototype.pause=function(){u("call pause flowing=%j",this._readableState.flowing);if(false!==this._readableState.flowing){u("pause");this._readableState.flowing=false;this.emit("pause")}return this};function A(e){var t=e._readableState;u("flow",t.flowing);if(t.flowing){do{var r=e.read()}while(null!==r&&t.flowing)}}l.prototype.wrap=function(e){var 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t=e&&e.length;if(typeof e==="string"&&/magnet:/.test(e)){return n(e)}else if(typeof e==="string"&&(t===40||t===32)){return n("magnet:?xt=urn:btih:"+e)}else if(r.isBuffer(e)&&t===20){return n("magnet:?xt=urn:btih:"+e.toString("hex"))}else if(r.isBuffer(e)){return i(e)}else if(e&&e.infoHash){return e}else{throw new Error("Invalid torrent identifier")}};t.exports.toMagnetURI=n.encode;t.exports.toTorrentFile=i.encode}).call(this,e("buffer").Buffer)},{buffer:45,"magnet-uri":122,"parse-torrent-file":127}],122:[function(e,t,r){(function(r){t.exports=a;t.exports.decode=a;t.exports.encode=s;var n=e("thirty-two");var i=e("xtend");var o=e("uniq");function a(e){var t={};var i=e.split("magnet:?")[1];var a=i&&i.length>=0?i.split("&"):[];a.forEach(function(e){var r=e.split("=");if(r.length!==2)return;var n=r[0];var i=r[1];if(n==="dn")i=decodeURIComponent(i).replace(/\+/g," ");if(n==="tr"||n==="xs"||n==="as"||n==="ws"){i=decodeURIComponent(i)}if(n==="kt")i=decodeURIComponent(i).split("+");if(t[n]){if(Array.isArray(t[n])){t[n].push(i)}else{var o=t[n];t[n]=[o,i]}}else{t[n]=i}});var s;if(t.xt){var f=Array.isArray(t.xt)?t.xt:[t.xt];f.forEach(function(e){if(s=e.match(/^urn:btih:(.{40})/)){t.infoHash=new r(s[1],"hex").toString("hex")}else if(s=e.match(/^urn:btih:(.{32})/)){var i=n.decode(s[1]);t.infoHash=new r(i,"binary").toString("hex")}})}if(t.dn)t.name=t.dn;if(t.kt)t.keywords=t.kt;if(typeof t.tr==="string")t.announce=[t.tr];else if(Array.isArray(t.tr))t.announce=t.tr;else t.announce=[];o(t.announce);t.urlList=[];if(typeof t.as==="string"||Array.isArray(t.as)){t.urlList=t.urlList.concat(t.as)}if(typeof t.ws==="string"||Array.isArray(t.ws)){t.urlList=t.urlList.concat(t.ws)}return t}function s(e){e=i(e);if(e.infoHash)e.xt="urn:btih:"+e.infoHash;if(e.name)e.dn=e.name;if(e.keywords)e.kt=e.keywords;if(e.announce)e.tr=e.announce;if(e.urlList){e.ws=e.urlList;delete e.as}var t="magnet:?";Object.keys(e).filter(function(e){return e.length===2}).forEach(function(r,n){var i=Array.isArray(e[r])?e[r]:[e[r]];i.forEach(function(e,i){if((n>0||i>0)&&(r!=="kt"||i===0))t+="&";if(r==="dn")e=encodeURIComponent(e).replace(/%20/g,"+");if(r==="tr"||r==="xs"||r==="as"||r==="ws"){e=encodeURIComponent(e)}if(r==="kt")e=encodeURIComponent(e);if(r==="kt"&&i>0)t+="+"+e;else t+=r+"="+e})});return t}}).call(this,e("buffer").Buffer)},{buffer:45,"thirty-two":123,uniq:125,xtend:126}],123:[function(e,t,r){var n=e("./thirty-two");r.encode=n.encode;r.decode=n.decode},{"./thirty-two":124}],124:[function(e,t,r){(function(e){var t="ABCDEFGHIJKLMNOPQRSTUVWXYZ234567";var n=[255,255,26,27,28,29,30,31,255,255,255,255,255,255,255,255,255,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,255,255,255,255,255,255,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,255,255,255,255,255];function i(e){var t=Math.floor(e.length/5);return e.length%5==0?t:t+1}r.encode=function(r){var n=0;var o=0;var a=0;var s=0;var f=new e(i(r)*8);if(!e.isBuffer(r)){r=new e(r)}while(n<r.length){var u=r[n];if(a>3){s=u&255>>a;a=(a+5)%8;s=s<<a|(n+1<r.length?r[n+1]:0)>>8-a;n++}else{s=u>>8-(a+5)&31;a=(a+5)%8;if(a==0)n++}f[o]=t.charCodeAt(s);o++}for(n=o;n<f.length;n++)f[n]=61;return f};r.decode=function(t){var r=0;var i=0;var o;var a=0;if(!e.isBuffer(t)){t=new e(t)}var s=new e(Math.ceil(t.length*5/8));for(var f=0;f<t.length;f++){if(t[f]==61){break}var u=t[f]-48;if(u<n.length){i=n[u];if(r<=3){r=(r+5)%8;if(r==0){o|=i;s[a]=o;a++;o=0}else{o|=255&i<<8-r}}else{r=(r+5)%8;o|=255&i>>>r;s[a]=o;a++;o=255&i<<8-r}}else{throw new Error("Invalid input - it is not base32 encoded string")}}return s.slice(0,a)}}).call(this,e("buffer").Buffer)},{buffer:45}],125:[function(e,t,r){"use strict";function n(e,t){var r=1,n=e.length,i=e[0],o=e[0];for(var a=1;a<n;++a){o=i;i=e[a];if(t(i,o)){if(a===r){r++;continue}e[r++]=i}}e.length=r;return e}function i(e){var t=1,r=e.length,n=e[0],i=e[0];for(var o=1;o<r;++o,i=n){i=n;n=e[o];if(n!==i){if(o===t){t++;continue}e[t++]=n}}e.length=t;return e}function o(e,t,r){if(e.length===0){return e}if(t){if(!r){e.sort(t)}return n(e,t)}if(!r){e.sort()}return i(e)}t.exports=o},{}],126:[function(e,t,r){arguments[4][23][0].apply(r,arguments)},{dup:23}],127:[function(e,t,r){(function(r){t.exports=s;t.exports.decode=s;t.exports.encode=f;var n=e("bencode");var i=e("path");var o=e("simple-sha1");var a=e("uniq");function s(e){if(r.isBuffer(e)){e=n.decode(e)}l(e.info,"info");l(e.info.name,"info.name");l(e.info["piece length"],"info['piece length']");l(e.info.pieces,"info.pieces");if(e.info.files){e.info.files.forEach(function(e){l(typeof e.length==="number","info.files[0].length");l(e.path,"info.files[0].path")})}else{l(typeof e.info.length==="number","info.length")}var t={};t.info=e.info;t.infoBuffer=n.encode(e.info);t.infoHash=o.sync(t.infoBuffer);t.name=e.info.name.toString();t.private=!!e.info.private;if(e["creation date"])t.created=new Date(e["creation date"]*1e3);if(r.isBuffer(e.comment))t.comment=e.comment.toString();t.announce=[];if(e["announce-list"]){e["announce-list"].forEach(function(e){e.forEach(function(e){t.announce.push(e.toString())})})}else if(e.announce){t.announce.push(e.announce)}a(t.announce);if(r.isBuffer(e["url-list"])){e["url-list"]=e["url-list"].length>0?[e["url-list"]]:[]}t.urlList=(e["url-list"]||[]).map(function(e){return e.toString()});var s=e.info.files||[e.info];t.files=s.map(function(e,r){var n=[].concat(e.name||t.name,e.path||[]).map(function(e){return e.toString()});return{path:i.join.apply(null,[i.sep].concat(n)).slice(1),name:n[n.length-1],length:e.length,offset:s.slice(0,r).reduce(u,0)}});t.length=s.reduce(u,0);var f=t.files[t.files.length-1];t.pieceLength=e.info["piece length"];t.lastPieceLength=(f.offset+f.length)%t.pieceLength||t.pieceLength;t.pieces=c(e.info.pieces);return t}function f(e){var t={info:e.info};t["announce-list"]=e.announce.map(function(e){if(!t.announce)t.announce=e;e=new r(e,"utf8");return[e]});if(e.created){t["creation date"]=e.created.getTime()/1e3|0}return n.encode(t)}function u(e,t){return e+t.length}function c(e){var t=[];for(var r=0;r<e.length;r+=20){t.push(e.slice(r,r+20).toString("hex"))}return t}function l(e,t){if(!e)throw new Error("Torrent is missing required field: "+t)}}).call(this,e("buffer").Buffer)},{bencode:128,buffer:45,path:51,"simple-sha1":132,uniq:134}],128:[function(e,t,r){arguments[4][13][0].apply(r,arguments)},{"./lib/decode":129,"./lib/encode":131,dup:13}],129:[function(e,t,r){arguments[4][14][0].apply(r,arguments)},{"./dict":130,buffer:45,dup:14}],130:[function(e,t,r){arguments[4][15][0].apply(r,arguments)},{dup:15}],131:[function(e,t,r){arguments[4][16][0].apply(r,arguments)},{buffer:45,dup:16}],132:[function(e,t,r){arguments[4][106][0].apply(r,arguments)},{dup:106,rusha:133}],133:[function(e,t,r){arguments[4][107][0].apply(r,arguments)},{dup:107}],134:[function(e,t,r){arguments[4][125][0].apply(r,arguments)},{dup:125}],135:[function(e,t,r){t.exports=i;t.exports.filter=o;var n=e("events").EventEmitter;function i(e,t,r){if(!Array.isArray(r))r=[r];var n=[];r.forEach(function(r){var i=function(){var e=[].slice.call(arguments);e.unshift(r);t.emit.apply(t,e)};n.push(i);e.on(r,i)});return function i(){r.forEach(function(t,r){e.removeListener(t,n[r])})}}function o(e,t){var r=new n;i(e,r,t);return r}},{events:49}],136:[function(e,t,r){arguments[4][102][0].apply(r,arguments)},{dezalgo:137,dup:102}],137:[function(e,t,r){arguments[4][27][0].apply(r,arguments)},{asap:138,dup:27,wrappy:139}],138:[function(e,t,r){arguments[4][28][0].apply(r,arguments)},{_process:52,dup:28}],139:[function(e,t,r){arguments[4][29][0].apply(r,arguments)},{dup:29}],140:[function(e,t,r){arguments[4][106][0].apply(r,arguments)},{dup:106,rusha:141}],141:[function(e,t,r){arguments[4][107][0].apply(r,arguments)},{dup:107}],142:[function(e,t,r){arguments[4][22][0].apply(r,arguments)},{dup:22}],143:[function(e,t,r){(function(r){t.exports=c;var n=e("debug")("torrent-discovery");var i=e("bittorrent-dht/client");var o=e("events").EventEmitter;var a=e("xtend/mutable");var s=e("inherits");var f=e("re-emitter");var u=e("bittorrent-tracker/client");s(c,o);function c(e){var t=this;if(!(t instanceof c))return new c(e);o.call(t);a(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(!r.browser&&!t.port)throw new Error("port required");if(t.dht)t._createDHT(t.dhtPort)}c.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}n("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))}};c.prototype.stop=function(e){var t=this;if(t.tracker&&t.tracker.stop)t.tracker.stop();if(!t._externalDHT&&t.dht&&t.dht.destroy)t.dht.destroy(e);else r.nextTick(function(){e(null)})};c.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,r){if(r===t.infoHash)t.emit("peer",e)});if(!t._externalDHT)t.dht.listen(e)};c.prototype._createTracker=function(){var e=this;if(!e.tracker)return;var t=e.torrent||{infoHash:e.infoHash,announce:e.announce};var r={rtcConfig:e.rtcConfig,wrtc:e.wrtc};e.tracker=new u(e.peerId,e.port,t,r);f(e.tracker,e,["peer","warning","error"]);e.tracker.start()};c.prototype._dhtLookupAndAnnounce=function(){var e=this;if(e._performedDHTLookup)return;e._performedDHTLookup=true;n("dht lookup");e.dht.lookup(e.infoHash,function(t){if(t||!e.port)return;n("dht announce");e.dht.announce(e.infoHash,e.port,function(){n("dht announce complete");e.emit("dhtAnnounce")})})}}).call(this,e("_process"))},{_process:52,"bittorrent-dht/client":44,"bittorrent-tracker/client":144,debug:176,events:49,inherits:179,"re-emitter":180,"xtend/mutable":181}],144:[function(e,t,r){(function(r){t.exports=h;var n=e("debug")("bittorrent-tracker");var i=e("events").EventEmitter;var o=e("inherits");var a=e("once");var s=e("url");var f=e("./lib/common");var u=e("./lib/http-tracker");var c=e("./lib/udp-tracker");var l=e("./lib/websocket-tracker");o(h,i);function h(e,t,o,a){var d=this;if(!(d instanceof h))return new h(e,t,o,a);i.call(d);if(!a)a={};d._peerId=r.isBuffer(e)?e:new r(e,"hex");d._port=t;d._infoHash=r.isBuffer(o.infoHash)?o.infoHash:new r(o.infoHash,"hex");d.torrentLength=o.length;d._rtcConfig=a.rtcConfig;d._wrtc=a.wrtc;d._numWant=a.numWant||f.DEFAULT_ANNOUNCE_PEERS;d._intervalMs=a.interval||f.DEFAULT_ANNOUNCE_INTERVAL;n("new client %s",d._infoHash.toString("hex"));if(typeof o.announce==="string")o.announce=[o.announce];if(o.announce==null)o.announce=[];var p={interval:d._intervalMs};var g=!!d._wrtc||typeof window!=="undefined";d._trackers=o.announce.map(function(e){var t=s.parse(e).protocol;if((t==="http:"||t==="https:")&&typeof u==="function"){return new u(d,e,p)}else if(t==="udp:"&&typeof c==="function"){return new c(d,e,p)}else if((t==="ws:"||t==="wss:")&&g){return new l(d,e,p)}return null}).filter(Boolean)}h.scrape=function(e,t,n){n=a(n);var i=new r("01234567890123456789");var o=6881;var s={infoHash:Array.isArray(t)?t[0]:t,announce:[e]};var f=new h(i,o,s);f.once("error",n);var u=Array.isArray(t)?t.length:1;var c={};f.on("scrape",function(e){u-=1;c[e.infoHash]=e;if(u===0){f.destroy();var t=Object.keys(c);if(t.length===1){n(null,c[t[0]])}else{n(null,c)}}});t=Array.isArray(t)?t.map(function(e){return new r(e,"hex")}):new r(t,"hex");f.scrape({infoHash:t})};h.prototype.start=function(e){var t=this;n("send `start`");e=t._defaultAnnounceOpts(e);e.event="started";t._announce(e);t._trackers.forEach(function(e){e.setInterval(t._intervalMs)})};h.prototype.stop=function(e){var t=this;n("send `stop`");e=t._defaultAnnounceOpts(e);e.event="stopped";t._announce(e);t.destroy()};h.prototype.complete=function(e){var t=this;n("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)};h.prototype.update=function(e){var t=this;n("send `update`");e=t._defaultAnnounceOpts(e);if(e.event)delete e.event;t._announce(e)};h.prototype._announce=function(e){var t=this;t._trackers.forEach(function(t){t.announce(e)})};h.prototype.scrape=function(e){var t=this;n("send `scrape`");if(!e)e={};t._trackers.forEach(function(t){t.scrape(e)})};h.prototype.setInterval=function(e){var t=this;n("setInterval");t._intervalMs=e;t._trackers.forEach(function(t){t.setInterval(e)})};h.prototype.destroy=function(){var e=this;n("destroy");e._trackers.forEach(function(e){if(e.destroy)e.destroy();e.setInterval(0)})};h.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("buffer").Buffer)},{"./lib/common":146,"./lib/http-tracker":44,"./lib/udp-tracker":44,"./lib/websocket-tracker":147,buffer:45,debug:148,events:49,inherits:152,once:154,url:70}],145:[function(e,t,r){(function(t){var n=e("querystring");r.IPV4_RE=/^[\d\.]+$/;r.IPV6_RE=/^[\da-fA-F:]+$/;r.CONNECTION_ID=t.concat([i(1047),i(655366528)]);r.ACTIONS={CONNECT:0,ANNOUNCE:1,SCRAPE:2,ERROR:3};r.EVENTS={update:0,completed:1,started:2,stopped:3};r.EVENT_IDS={0:"update",1:"completed",2:"started",3:"stopped"};r.EVENT_NAMES={update:"update",completed:"complete",started:"start",stopped:"stop"};function i(e){var r=new t(4);r.writeUInt32BE(e,0);return r}r.toUInt32=i;r.querystringParse=function(e){var t=n.unescape;n.unescape=unescape;var r=n.parse(e);n.unescape=t;return r};r.querystringStringify=function(e){var t=n.escape;n.escape=escape;var r=n.stringify(e);r=r.replace(/[\@\*\/\+]/g,function(e){return"%"+e.charCodeAt(0).toString(16).toUpperCase()});n.escape=t;return r}}).call(this,e("buffer").Buffer)},{buffer:45,querystring:56}],146:[function(e,t,r){(function(t){var n=e("xtend/mutable");r.DEFAULT_ANNOUNCE_INTERVAL=30*60*1e3;r.DEFAULT_ANNOUNCE_PEERS=50;r.MAX_ANNOUNCE_PEERS=82;r.binaryToHex=function(e){return new t(e,"binary").toString("hex")};r.hexToBinary=function(e){return new t(e,"hex").toString("binary")};var i=e("./common-node");n(r,i)}).call(this,e("buffer").Buffer)},{"./common-node":145,buffer:45,"xtend/mutable":175}],147:[function(e,t,r){t.exports=l;var n=e("debug")("bittorrent-tracker:websocket-tracker");var i=e("events").EventEmitter;var o=e("hat");var a=e("inherits");var s=e("simple-peer");var f=e("simple-websocket");var u=e("./common");var c={};a(l,i);function l(e,t,r){var o=this;i.call(o);n("new websocket tracker %s",t);o.client=e;o._opts=r;o._announceUrl=t;o._peers={};o._socket=null;o._intervalMs=o.client._intervalMs;o._interval=null;if(c[t])o._socket=c[t];else o._socket=c[t]=new f(t);o._socket.on("error",o._onSocketError.bind(o));o._socket.on("data",o._onSocketData.bind(o))}l.prototype.announce=function(e){var t=this;if(!t._socket.connected){return t._socket.on("connect",t.announce.bind(t,e))}e.info_hash=t.client._infoHash.toString("binary");e.peer_id=t.client._peerId.toString("binary");if(e.numWant>5)e.numWant=5;t._generateOffers(e.numWant,function(r){e.offers=r;if(t._trackerId){e.trackerid=t._trackerId}t._send(e)})};l.prototype.scrape=function(e){var t=this;t._onSocketError(new Error("scrape not supported "+t._announceUrl))};l.prototype.setInterval=function(e){var t=this;clearInterval(t._interval);t._intervalMs=e;if(e){var r=t.announce.bind(t,t.client._defaultAnnounceOpts());t._interval=setInterval(r,t._intervalMs)}};l.prototype._onSocketError=function(e){var t=this;t.client.emit("error",e)};l.prototype._onSocketData=function(e){var t=this;if(!(typeof e==="object"&&e!==null)){return t.client.emit("warning",new Error("Invalid tracker response"))}if(e.info_hash!==t.client._infoHash.toString("binary")){return t.client.emit("warning",new Error("Invalid tracker response"))}n("received %s from %s",JSON.stringify(e),t._announceUrl);var r=e["failure reason"];if(r)return t.client.emit("warning",new Error(r));var i=e["warning message"];if(i)t.client.emit("warning",new Error(i));var o=e.interval||e["min interval"];if(o&&!t._opts.interval&&t._intervalMs!==0){t.setInterval(o*1e3)}var a=e["tracker id"];if(a){t._trackerId=a}if(e.complete){t.client.emit("update",{announce:t._announceUrl,complete:e.complete,incomplete:e.incomplete})}var f;if(e.offer){f=new s({trickle:false,config:t.client._rtcConfig,wrtc:t.client._wrtc});f.id=u.binaryToHex(e.peer_id);f.once("signal",function(r){var n={info_hash:t.client._infoHash.toString("binary"),peer_id:t.client._peerId.toString("binary"),to_peer_id:e.peer_id,answer:r,offer_id:e.offer_id};if(t._trackerId)n.trackerid=t._trackerId;t._send(n)});f.signal(e.offer);t.client.emit("peer",f)}if(e.answer){f=t._peers[u.binaryToHex(e.offer_id)];if(f){f.id=u.binaryToHex(e.peer_id);f.signal(e.answer);t.client.emit("peer",f)}else{n("got unexpected answer: "+JSON.stringify(e.answer))}}};l.prototype._send=function(e){var t=this;var r=JSON.stringify(e);n("send %s",r);t._socket.send(r)};l.prototype._generateOffers=function(e,t){var r=this;var i=[];n("generating %s offers",e);for(var a=0;a<e;++a){f()}function f(){var e=o(160);var t=r._peers[e]=new s({initiator:true,trickle:false,config:r.client._rtcConfig,wrtc:r.client._wrtc});t.once("signal",function(t){i.push({offer:t,offer_id:u.hexToBinary(e)});c()})}function c(){if(i.length===e){n("generated %s offers",e);t(i)}}}},{"./common":146,debug:148,events:49,hat:151,inherits:152,"simple-peer":155,"simple-websocket":167}],148:[function(e,t,r){arguments[4][18][0].apply(r,arguments)},{"./debug":149,dup:18}],149:[function(e,t,r){arguments[4][19][0].apply(r,arguments)},{dup:19,ms:150}],150:[function(e,t,r){arguments[4][20][0].apply(r,arguments)},{dup:20}],151:[function(e,t,r){arguments[4][115][0].apply(r,arguments)},{dup:115}],152:[function(e,t,r){arguments[4][21][0].apply(r,arguments)},{dup:21}],153:[function(e,t,r){arguments[4][29][0].apply(r,arguments)},{dup:29}],154:[function(e,t,r){arguments[4][99][0].apply(r,arguments)},{dup:99,wrappy:153}],155:[function(e,t,r){(function(r){t.exports=l;var n=e("debug")("simple-peer");var i=e("xtend/mutable");var o=e("hat");var a=e("inherits");var s=e("is-typedarray");var f=e("once");var u=e("stream");var c=e("typedarray-to-buffer");a(l,u.Duplex);function l(e){var t=this;if(!(t instanceof l))return new l(e);if(!e)e={};i(t,{initiator:false,stream:false,config:l.config,constraints:l.constraints,channelName:e&&e.initiator?o(160):null,channelConfig:l.channelConfig,trickle:true,allowHalfOpen:false,highWaterMark:1024*1024},e);u.Duplex.call(t,e);var r=e.wrtc||h();if(!r&&typeof window==="undefined"){throw new Error("Missing WebRTC support - You must supply "+"`opts.wrtc` in this environment")}else if(!r){throw new Error("Missing WebRTC support - is this a supported browser?")}t._wrtc=r;t._debug("new peer (initiator: %s)",t.initiator);t.destroyed=false;t.connected=false;t.remoteAddress=undefined;t.remoteFamily=undefined;t.remotePort=undefined;t.localAddress=undefined;t.localPort=undefined;t._pcReady=false;t._channelReady=false;t._iceComplete=false;t._channel=null;t._chunk=null;t._cb=null;t._interval;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=f(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)})}})}l.WEBRTC_SUPPORT=!!h();l.config={iceServers:[{url:"stun:23.21.150.121",urls:"stun:23.21.150.121"}]};l.constraints={};l.channelConfig={};Object.defineProperty(l.prototype,"bufferSize",{get:function(){var e=this;return e._channel&&e._channel.bufferedAmount||0}});l.prototype.address=function(){var e=this;return{port:e.localPort,family:"IPv4",address:e.localAddress}};l.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(r){e={}}}t._debug("signal()");if(e.sdp){t._pc.setRemoteDescription(new t._wrtc.RTCSessionDescription(e),function(){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(r){t._destroy(new Error("error adding candidate: "+r.message))}}if(!e.sdp&&!e.candidate){t._destroy(new Error("signal() called with invalid signal data"))}};l.prototype.send=function(e){var t=this;if(!s.strict(e)&&!(e instanceof ArrayBuffer)&&!r.isBuffer(e)&&typeof e!=="string"&&(typeof Blob==="undefined"||!(e instanceof Blob))){e=JSON.stringify(e)}if(r.isBuffer(e)&&!s.strict(e)){e=new Uint8Array(e)}var n=e.length||e.byteLength||e.size;t._channel.send(e);t._debug("write: %d bytes",n)};l.prototype.destroy=function(e){var t=this;t._destroy(null,e)};l.prototype._destroy=function(e,t){var r=this;if(r.destroyed)return;if(t)r.once("close",t);r._debug("destroy (error: %s)",e&&e.message);r.destroyed=true;r.connected=false;r._pcReady=false;r._channelReady=false;clearInterval(r._interval);r._interval=null;r._chunk=null;r._cb=null;if(r._pc){try{r._pc.close()}catch(e){}r._pc.oniceconnectionstatechange=null;r._pc.onsignalingstatechange=null;r._pc.onicecandidate=null}if(r._channel){try{r._channel.close()}catch(e){}r._channel.onmessage=null;r._channel.onopen=null;r._channel.onclose=null}r._pc=null;r._channel=null;r.readable=r.writable=false;if(!r._readableState.ended)r.push(null);if(!r._writableState.finished)r.end();if(e)r.emit("error",e);r.emit("close")};l.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)};l.prototype._read=function(){};l.prototype._write=function(e,t,r){var n=this;if(n.destroyed)return r(new Error("cannot write after peer is destroyed"));if(n.connected){n.send(e);if(n._channel.bufferedAmount){n._debug("start backpressure: bufferedAmount %d",n._channel.bufferedAmount);n._cb=r}else{r(null)}}else{n._debug("write before connect");n._chunk=e;n._cb=r}};l.prototype._createOffer=function(){var e=this;if(e.destroyed)return;e._pc.createOffer(function(t){if(e.destroyed)return;d(t);e._pc.setLocalDescription(t,p,e._onError.bind(e));var r=function(){e._debug("signal");e.emit("signal",e._pc.localDescription||t)};if(e.trickle||e._iceComplete)r();else e.once("_iceComplete",r)},e._onError.bind(e),e.offerConstraints)};l.prototype._createAnswer=function(){var e=this;if(e.destroyed)return;e._pc.createAnswer(function(t){if(e.destroyed)return;d(t);e._pc.setLocalDescription(t,p,e._onError.bind(e));var r=function(){e._debug("signal");e.emit("signal",e._pc.localDescription||t)};if(e.trickle||e._iceComplete)r();else e.once("_iceComplete",r)},e._onError.bind(e),e.answerConstraints)};l.prototype._onIceConnectionStateChange=function(){var e=this;if(e.destroyed)return;var t=e._pc.iceGatheringState;var r=e._pc.iceConnectionState;e._debug("iceConnectionStateChange %s %s",t,r);e.emit("iceConnectionStateChange",t,r);if(r==="connected"||r==="completed"){e._pcReady=true;e._maybeReady()}if(r==="closed"){e._destroy()}};l.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 r=[];e.forEach(function(e){r.push(e)});t(r)},e._onError.bind(e))}else{e._pc.getStats(function(e){var r=[];e.result().forEach(function(e){var t={};e.names().forEach(function(r){t[r]=e.stat(r)});t.id=e.id;t.type=e.type;t.timestamp=e.timestamp;r.push(t)});t(r)})}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 r=e._cb;e._cb=null;r(null)}e._interval=setInterval(function(){if(!e._cb||!e._channel||e._channel.bufferedAmount)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")}};l.prototype._onSignalingStateChange=function(){var e=this;if(e.destroyed)return;e._debug("signalingStateChange %s",e._pc.signalingState);e.emit("signalingStateChange",e._pc.signalingState)};l.prototype._onIceCandidate=function(e){var t=this;if(t.destroyed)return;if(e.candidate&&t.trickle){t.emit("signal",{candidate:e.candidate})}else if(!e.candidate){t._iceComplete=true;t.emit("_iceComplete")}};l.prototype._onChannelMessage=function(e){var t=this;if(t.destroyed)return;var r=e.data;t._debug("read: %d bytes",r.byteLength||r.length);if(r instanceof ArrayBuffer){r=c(new Uint8Array(r));t.push(r)}else{try{r=JSON.parse(r)}catch(n){}t.emit("data",r)}};l.prototype._onChannelOpen=function(){var e=this;if(e.connected||e.destroyed)return;e._debug("on channel open");e._channelReady=true;e._maybeReady()};l.prototype._onChannelClose=function(){var e=this;if(e.destroyed)return;e._debug("on channel close");e._destroy()};l.prototype._onAddStream=function(e){var t=this;if(t.destroyed)return;t._debug("on add stream");t.emit("stream",e.stream)};l.prototype._onError=function(e){var t=this;if(t.destroyed)return;t._debug("error %s",e.message||e);t._destroy(e)};l.prototype._debug=function(){var e=this; -var t=[].slice.call(arguments);var r=e.channelName&&e.channelName.substring(0,7);t[0]="["+r+"] "+t[0];n.apply(null,t)};function h(){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 d(e){var t=e.sdp.split("b=AS:30");if(t.length>1)e.sdp=t[0]+"b=AS:1638400"+t[1]}function p(){}}).call(this,e("buffer").Buffer)},{buffer:45,debug:156,hat:159,inherits:160,"is-typedarray":161,once:163,stream:68,"typedarray-to-buffer":164,"xtend/mutable":166}],156:[function(e,t,r){arguments[4][18][0].apply(r,arguments)},{"./debug":157,dup:18}],157:[function(e,t,r){arguments[4][19][0].apply(r,arguments)},{dup:19,ms:158}],158:[function(e,t,r){arguments[4][20][0].apply(r,arguments)},{dup:20}],159:[function(e,t,r){arguments[4][115][0].apply(r,arguments)},{dup:115}],160:[function(e,t,r){arguments[4][21][0].apply(r,arguments)},{dup:21}],161:[function(e,t,r){arguments[4][93][0].apply(r,arguments)},{dup:93}],162:[function(e,t,r){arguments[4][29][0].apply(r,arguments)},{dup:29}],163:[function(e,t,r){arguments[4][99][0].apply(r,arguments)},{dup:99,wrappy:162}],164:[function(e,t,r){arguments[4][92][0].apply(r,arguments)},{buffer:45,dup:92,"is-typedarray":165}],165:[function(e,t,r){arguments[4][93][0].apply(r,arguments)},{dup:93}],166:[function(e,t,r){t.exports=n;function n(e){for(var t=1;t<arguments.length;t++){var r=arguments[t];for(var n in r){if(r.hasOwnProperty(n)){e[n]=r[n]}}}return e}},{}],167:[function(e,t,r){(function(r){t.exports=c;var n=e("debug")("simple-websocket");var i=e("inherits");var o=e("is-typedarray");var a=e("stream");var s=e("typedarray-to-buffer");var f=e("ws");var u=typeof window!=="undefined"?window.WebSocket:f;i(c,a.Duplex);function c(e,t){var r=this;if(!(r instanceof c))return new c(e,t);if(!t)t={};n("new websocket: %s %o",e,t);t.allowHalfOpen=false;a.Duplex.call(r,t);r.url=e;r.connected=false;r.destroyed=false;r._chunk=null;r._cb=null;r._interval=null;r._ws=new u(r.url);r._ws.binaryType="arraybuffer";r._ws.onopen=r._onOpen.bind(r);r._ws.onmessage=r._onMessage.bind(r);r._ws.onclose=r._onClose.bind(r);r._ws.onerror=r._onError.bind(r);r.on("finish",function(){if(r.connected){setTimeout(function(){r._destroy()},100)}else{r.once("connect",function(){setTimeout(function(){r._destroy()},100)})}})}c.prototype.send=function(e){var t=this;if(!o.strict(e)&&!(e instanceof ArrayBuffer)&&!r.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);n("write: %d bytes",i)};c.prototype.destroy=function(e){var t=this;t._destroy(null,e)};c.prototype._destroy=function(e,t){var r=this;if(r.destroyed)return;if(t)r.once("close",t);n("destroy (error: %s)",e&&e.message);r.connected=false;r.destroyed=true;clearInterval(r._interval);r._interval=null;r._chunk=null;r._cb=null;if(r._ws){try{r._ws.close()}catch(e){}r._ws.onopen=null;r._ws.onmessage=null;r._ws.onclose=null;r._ws.onerror=null}r._ws=null;this.readable=this.writable=false;if(!r._readableState.ended)r.push(null);if(!r._writableState.finished)r.end();if(e)r.emit("error",e);r.emit("close")};c.prototype._read=function(){};c.prototype._write=function(e,t,r){var i=this;if(i.destroyed)return r(new Error("cannot write after socket is destroyed"));if(i.connected){i.send(e);if(typeof f!=="function"&&i._ws.bufferedAmount){n("start backpressure: bufferedAmount %d",i._ws.bufferedAmount);i._cb=r}else{r(null)}}else{n("write before connect");i._chunk=e;i._cb=r}};c.prototype._onMessage=function(e){var t=this;if(t.destroyed)return;var i=e.data;n("read: %d bytes",i.byteLength||i.length);if(i instanceof ArrayBuffer){i=s(new Uint8Array(i));t.push(i)}else if(r.isBuffer(i)){t.push(i)}else{try{i=JSON.parse(i)}catch(o){}t.emit("data",i)}};c.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;n('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)return;n("ending backpressure: bufferedAmount %d",e._ws.bufferedAmount);var t=e._cb;e._cb=null;t(null)},150);if(e._interval.unref)e._interval.unref()}n("connect");e.emit("connect")};c.prototype._onClose=function(){var e=this;if(e.destroyed)return;n("on close");e._destroy()};c.prototype._onError=function(){var e=this;if(e.destroyed)return;var t=new Error("connection error to "+e.url);n("error: %s",t.message||t);e._destroy(t)}}).call(this,e("buffer").Buffer)},{buffer:45,debug:168,inherits:171,"is-typedarray":172,stream:68,"typedarray-to-buffer":173,ws:44}],168:[function(e,t,r){arguments[4][18][0].apply(r,arguments)},{"./debug":169,dup:18}],169:[function(e,t,r){arguments[4][19][0].apply(r,arguments)},{dup:19,ms:170}],170:[function(e,t,r){arguments[4][20][0].apply(r,arguments)},{dup:20}],171:[function(e,t,r){arguments[4][21][0].apply(r,arguments)},{dup:21}],172:[function(e,t,r){arguments[4][93][0].apply(r,arguments)},{dup:93}],173:[function(e,t,r){arguments[4][92][0].apply(r,arguments)},{buffer:45,dup:92,"is-typedarray":174}],174:[function(e,t,r){arguments[4][93][0].apply(r,arguments)},{dup:93}],175:[function(e,t,r){arguments[4][166][0].apply(r,arguments)},{dup:166}],176:[function(e,t,r){arguments[4][18][0].apply(r,arguments)},{"./debug":177,dup:18}],177:[function(e,t,r){arguments[4][19][0].apply(r,arguments)},{dup:19,ms:178}],178:[function(e,t,r){arguments[4][20][0].apply(r,arguments)},{dup:20}],179:[function(e,t,r){arguments[4][21][0].apply(r,arguments)},{dup:21}],180:[function(e,t,r){arguments[4][135][0].apply(r,arguments)},{dup:135,events:49}],181:[function(e,t,r){arguments[4][166][0].apply(r,arguments)},{dup:166}],182:[function(e,t,r){arguments[4][125][0].apply(r,arguments)},{dup:125}],183:[function(e,t,r){(function(r){var n=e("bencode");var i=e("bitfield");var o=e("events").EventEmitter;var a=e("inherits");var s=e("simple-sha1");var f=1e7;var u=1e3;var c=16*1024;t.exports=function(e){a(t,o);function t(t){o.call(this);this._wire=t;this._metadataComplete=false;this._metadataSize=null;this._remainingRejects=null;this._fetching=false;this._bitfield=new i(0,{grow:u});if(r.isBuffer(e)){this.setMetadata(e)}}t.prototype.name="ut_metadata";t.prototype.onHandshake=function(e,t,r){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/c);this._remainingRejects=this._numPieces*2;if(this._fetching){this._requestPieces()}};t.prototype.onMessage=function(e){var t,r;try{var i=e.toString();var o=i.indexOf("ee")+2;t=n.decode(i.substring(0,o));r=e.slice(o)}catch(a){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);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=n.decode(e).info;if(t){e=n.encode(t)}}catch(r){}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",n.encode({info:n.decode(this.metadata)}));return true};t.prototype._send=function(e,t){var i=n.encode(e);if(r.isBuffer(t)){i=r.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,r){var n={msg_type:1,piece:e};if(typeof r==="number"){n.total_size=r}this._send(n,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*c;var r=t+c;if(r>this._metadataSize){r=this._metadataSize}var n=this.metadata.slice(t,r);this._data(e,n,this._metadataSize)};t.prototype._onData=function(e,t,r){if(t.length>c){return}t.copy(this.metadata,e*c);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 r(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 r=this.setMetadata(this.metadata);if(!r){this._failedMetadata()}};t.prototype._failedMetadata=function(){this._bitfield=new i(0,{grow:u});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:184,bitfield:188,buffer:45,events:49,inherits:189,"simple-sha1":190}],184:[function(e,t,r){arguments[4][13][0].apply(r,arguments)},{"./lib/decode":185,"./lib/encode":187,dup:13}],185:[function(e,t,r){arguments[4][14][0].apply(r,arguments)},{"./dict":186,buffer:45,dup:14}],186:[function(e,t,r){arguments[4][15][0].apply(r,arguments)},{dup:15}],187:[function(e,t,r){arguments[4][16][0].apply(r,arguments)},{buffer:45,dup:16}],188:[function(e,t,r){arguments[4][8][0].apply(r,arguments)},{buffer:45,dup:8}],189:[function(e,t,r){arguments[4][21][0].apply(r,arguments)},{dup:21}],190:[function(e,t,r){arguments[4][106][0].apply(r,arguments)},{dup:106,rusha:191}],191:[function(e,t,r){arguments[4][107][0].apply(r,arguments)},{dup:107}],192:[function(e,t,r){arguments[4][23][0].apply(r,arguments)},{dup:23}],193:[function(e,t,r){t.exports=function n(e,t,r){if(t===undefined){return function(t,r){return n(e,t,r)}}if(r===undefined)r="0";e-=t.toString().length;if(e>0)return new Array(e+(/\./.test(t)?2:1)).join(r)+t;return t+""}},{}],194:[function(e,t,r){t.exports={name:"webtorrent",description:"Streaming torrent client",version:"0.40.0",author:{name:"Feross Aboukhadijeh",email:"feross@feross.org",url:"http://feross.org/"},bin:{webtorrent:"./bin/cmd.js"},browser:{"./lib/fs-storage":false,"./server":false,"bittorrent-dht/client":false,"load-ip-set":false,"simple-get":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":"^4.0.0","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":"^5.0.0","pretty-bytes":"^1.0.1",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-get":"^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",standard:"^3.1.1",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)}); +(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,r;return function n(e,t,r){function i(a,s){if(!t[a]){if(!e[a]){var f=typeof require=="function"&&require;if(!s&&f)return f(a,!0);if(o)return o(a,!0);var u=new Error("Cannot find module '"+a+"'");throw u.code="MODULE_NOT_FOUND",u}var c=t[a]={exports:{}};e[a][0].call(c.exports,function(t){var r=e[a][1][t];return i(r?r:t)},c,c.exports,n,e,t,r)}return t[a].exports}var o=typeof require=="function"&&require;for(var a=0;a<r.length;a++)i(r[a]);return i}({1:[function(e,t,r){(function(r,n,i){t.exports=w;var o=e("create-torrent");var a=e("debug")("webtorrent");var s=e("bittorrent-dht/client");var f=e("events").EventEmitter;var u=e("xtend");var c=e("hat");var l=e("inherits");var h=e("load-ip-set");var d=e("run-parallel");var p=e("parse-torrent");var g=e("speedometer");var m=e("zero-fill");var v=e("./lib/fs-storage");var y=e("./lib/storage");var _=e("./lib/torrent");l(w,f);var b=e("./package.json").version.match(/([0-9]+)/g).slice(0,2).map(m(2)).join("");function w(e){var t=this;if(!(t instanceof w))return new w(e);if(!e)e={};f.call(t);if(!a.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||n.WRTC;t.torrents=[];t.downloadSpeed=g();t.uploadSpeed=g();t.storage=typeof e.storage==="function"?e.storage:e.storage!==false&&typeof v==="function"?v:y;t.peerId=e.peerId===undefined?new i("-WW"+b+"-"+c(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(c(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(u({nodeId:t.nodeId},e.dht));t.dht.listen(e.dhtPort)}a("new webtorrent (peerId %s, nodeId %s)",t.peerIdHex,t.nodeIdHex);if(typeof h==="function"){h(e.blocklist,{headers:{"user-agent":"WebTorrent (http://webtorrent.io)"}},function(e,r){if(e)return t.error("failed to load blocklist: "+e.message);t.blocked=r;o()})}else r.nextTick(o);function o(){if(t.destroyed)return;t.ready=true;t.emit("ready")}}Object.defineProperty(w.prototype,"ratio",{get:function(){var e=this;var t=e.torrents.reduce(function(e,t){return e+t.uploaded},0);var r=e.torrents.reduce(function(e,t){return e+t.downloaded},0)||1;return t/r}});w.prototype.get=function(e){var t=this;var r=p(e);if(!r.infoHash)throw new Error("Invalid torrent identifier");for(var n=0,i=t.torrents.length;n<i;n++){var o=t.torrents[n];if(o.infoHash===r.infoHash)return o}return null};w.prototype.add=w.prototype.download=function(e,t,r){var n=this;if(n.destroyed)throw new Error("client is destroyed");a("add");if(typeof t==="function"){r=t;t={}}if(!t)t={};t.client=n;t.storage=t.storage||n.storage;var i=new _(e,t);n.torrents.push(i);function o(e){if(i.infoHash===e.infoHash){r(i);n.removeListener("torrent",o)}}if(r)n.on("torrent",o);i.on("error",function(e){n.emit("error",e,i)});i.on("listening",function(e){n.emit("listening",e,i)});i.on("ready",function(){a("torrent");n.emit("torrent",i)});return i};w.prototype.seed=function(e,t,r){var n=this;if(n.destroyed)throw new Error("client is destroyed");a("seed");if(typeof t==="function"){r=t;t={}}if(!t)t={};t.noVerify=true;o.parseInput(e,t,function(i,a){if(i)return n.emit("error",i);var s=a.map(function(e){return e.getStream});o(e,t,function(e,i){if(e)return n.emit("error",e);if(n.destroyed)return;n.add(i,t,function(e){var t=[function(t){e.storage.load(s,t)}];if(n.dht){t.push(function(t){e.on("dhtAnnounce",t)})}d(t,function(t){if(t)return n.emit("error",t);if(r)r(e);n.emit("seed",e)})})})})};w.prototype.remove=function(e,t){var r=this;var n=r.get(e);if(!n)throw new Error("No torrent with id "+e);a("remove");r.torrents.splice(r.torrents.indexOf(n),1);n.destroy(t)};w.prototype.address=function(){var e=this;return{address:"0.0.0.0",family:"IPv4",port:e.torrentPort}};w.prototype.destroy=function(e){var t=this;t.destroyed=true;a("destroy");var r=t.torrents.map(function(e){return function(r){t.remove(e.infoHash,r)}});if(t.dht){r.push(function(e){t.dht.destroy(e)})}d(r,e)}}).call(this,e("_process"),typeof global!=="undefined"?global:typeof self!=="undefined"?self:typeof window!=="undefined"?window:{},e("buffer").Buffer)},{"./lib/fs-storage":44,"./lib/storage":5,"./lib/torrent":6,"./package.json":194,_process:52,"bittorrent-dht/client":44,buffer:45,"create-torrent":71,debug:108,events:49,hat:115,inherits:116,"load-ip-set":44,"parse-torrent":121,"run-parallel":136,speedometer:142,xtend:192,"zero-fill":193}],2:[function(e,t,r){t.exports=f;var n=e("debug")("webtorrent:file-stream");var i=e("inherits");var o=e("path");var a=e("stream");var s=e("./media-stream");i(f,a.Readable);function f(e,t){var r=this;if(!(r instanceof f))return new f(e,t);a.Readable.call(r,t);n("new filestream %s",JSON.stringify(t));if(!t)t={};if(!t.start)t.start=0;if(!t.end)t.end=e.length-1;r.length=t.end-t.start+1;var i=t.start+e.offset;var s=t.pieceLength;r.startPiece=i/s|0;r.endPiece=(t.end+e.offset)/s|0;r._extname=o.extname(e.name);r._storage=e.storage;r._piece=r.startPiece;r._missing=r.length;r._reading=false;r._notifying=false;r._destroyed=false;r._criticalLength=Math.min(1024*1024/s|0,2);r._offset=i-r.startPiece*s}f.prototype._read=function(){n("_read");var e=this;if(e._reading)return;e._reading=true;e.notify()};f.prototype.notify=function(){n("notify");var e=this;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;n("before read %s",t);e._storage.read(e._piece++,function(r,i){n("after read %s (length %s) (err %s)",t,i.length,r&&r.message);e._notifying=false;if(e._destroyed)return;if(r){e._storage.emit("error",r);return e.destroy(r)}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;n("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 r=a.Readable.prototype.pipe;if(e&&(e.nodeName==="VIDEO"||e.nodeName==="AUDIO")){var n={".webm":'video/webm; codecs="vorbis,vp8"',".mp4":'video/mp4; codecs="avc1.42c01e,mp4a.40.2"',".mp3":"audio/mpeg"}[t._extname];return r.call(t,new s(e,{type:n}))}else{return r.call(t,e)}};f.prototype.destroy=function(){var e=this;if(e._destroyed)return;e._destroyed=true}},{"./media-stream":3,debug:108,inherits:116,path:51,stream:68}],3:[function(e,t,r){t.exports=f;var n=e("debug")("webtorrent:media-stream");var i=e("inherits");var o=e("once");var a=e("stream");var s=typeof window!=="undefined"&&window.MediaSource;i(f,a.Writable);function f(e,t){var r=this;if(!(r instanceof f))return new f(e,t);a.Writable.call(r,t);if(!s)throw new Error("web browser lacks MediaSource support");r.media=e;t=t||{};t.type=t.type||'video/webm; codecs="vorbis,vp8"';n("new mediastream %s %s",e,JSON.stringify(t));r._mediaSource=new s;r._sourceBuffer=null;r._cb=null;r.media.src=window.URL.createObjectURL(r._mediaSource);var i=o(function(){r._sourceBuffer=r._mediaSource.addSourceBuffer(t.type);r._sourceBuffer.addEventListener("updateend",r._flow.bind(r));r._flow()});r._mediaSource.addEventListener("webkitsourceopen",i,false);r._mediaSource.addEventListener("sourceopen",i,false);r.on("finish",function(){n("finish");r._mediaSource.endOfStream()});window.vs=r}f.prototype._write=function(e,t,r){var i=this;if(!i._sourceBuffer){i._cb=function(n){if(n)return r(n);i._write(e,t,r)};return}if(i._sourceBuffer.updating){return r(new Error("Cannot append buffer while source buffer updating"))}i._sourceBuffer.appendBuffer(e);n("appendBuffer %s",e.length);i._cb=r};f.prototype._flow=function(){var e=this;n("flow");if(e._cb){e._cb(null)}}},{debug:108,inherits:116,once:120,stream:68}],4:[function(e,t,r){t.exports=n;function n(e,t){var r=this;r.swarm=e;r.numPieces=t;function n(e){e.on("have",function(e){r.pieces[e]++});e.on("bitfield",r.recalculate.bind(r));e.on("close",function(){for(var t=0;t<r.numPieces;++t){r.pieces[t]-=e.peerPieces.get(t)}})}r.swarm.wires.forEach(n);r.swarm.on("wire",function(e){r.recalculate();n(e)});r.recalculate()}n.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 r=0;r<e.numPieces;++r){e.pieces[r]+=t.peerPieces.get(r)}})};n.prototype.getRarestPiece=function(e){var t=this;var r=[];var n=Infinity;e=e||function(){return true};for(var i=0;i<t.numPieces;++i){if(!e(i))continue;var o=t.pieces[i];if(o===n){r.push(i)}else if(o<n){r=[i];n=o}}if(r.length>0){return r[Math.random()*r.length|0]}else{return-1}}},{}],5:[function(e,t,r){(function(r,n){t.exports=k;var i=e("bitfield");var o=e("block-stream2");var a=e("debug")("webtorrent:storage");var s=e("dezalgo");var f=e("end-of-stream");var u=e("events").EventEmitter;var c=e("./file-stream");var l=e("inherits");var h=e("multistream");var d=e("once");var p=e("simple-sha1");var g=16*1024;var m=0;var v=1;var y=2;function _(){}l(b,u);function b(e,t,r,n){var i=this;u.call(i);if(!a.enabled)i.setMaxListeners(0);i.index=e;i.hash=t;i.noVerify=!!n;if(typeof r==="number"){i.buffer=null;i.length=r}else{i.buffer=r;i.length=r.length}i._reset()}b.prototype.readBlock=function(e,t,r){var n=this;r=s(r);if(!n.buffer||!n._verifyOffset(e)){return r(new Error("invalid block offset "+e))}r(null,n.buffer.slice(e,e+t))};b.prototype.writeBlock=function(e,t,r){var n=this;r=s(r);if(!n._verifyOffset(e)||!n._verifyBlock(e,t)){return r(new Error("invalid block "+e+":"+t.length))}n._lazyAllocBuffer();var i=e/g;if(n.blocks[i]===y){return r(null)}t.copy(n.buffer,e);n.blocks[i]=y;n.blocksWritten+=1;if(n.blocksWritten===n.blocks.length){n.verify()}r(null)};b.prototype.reserveBlock=function(e){var t=this;var r=t.blocks.length;for(var n=0;n<r;n++){if(t.blocks[n]&&!e||t.blocks[n]===y){continue}t.blocks[n]=v;return{offset:n*g,length:n===r-1?t.length-n*g:g}}return null};b.prototype.cancelBlock=function(e){var t=this;if(!t._verifyOffset(e)){return false}var r=e/g;if(t.blocks[r]===v){t.blocks[r]=m}return true};b.prototype._reset=function(){var e=this;e.verified=false;e.blocks=new n(Math.ceil(e.length/g));e.blocks.fill(0);e.blocksWritten=0};b.prototype.verify=function(e){var t=this;e=e||t.buffer;if(t.verified||!e){return}if(t.noVerify){t.verified=true;r();return}p(e,function(e){t.verified=e===t.hash;r()});function r(){if(t.verified){t.emit("done")}else{t.emit("warning",new Error("piece "+t.index+" failed verification"));t._reset()}}};b.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}};b.prototype._verifyBlock=function(e,t){var r=this;if(t.length===g){return true}else if(t.length===r.length-e&&r.length-e<g){return true}else{r.emit("warning",new Error("invalid block size "+t.length));return false}};b.prototype._lazyAllocBuffer=function(){var e=this;if(!e.buffer){e.buffer=new n(e.length)}};l(w,u);function w(e,t,r,n){var i=this;u.call(i);if(!a.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=r;i.pieceLength=n;i.done=false;i.pieces.forEach(function(e){e.on("done",function(){i._checkDone()})});i._checkDone()}w.prototype.select=function(){var e=this;if(e.pieces.length>0){var t=e.pieces[0].index;var r=e.pieces[e.pieces.length-1].index;e.storage.emit("select",t,r,false)}};w.prototype.deselect=function(){var e=this;if(e.pieces.length>0){var t=e.pieces[0].index;var r=e.pieces[e.pieces.length-1].index;e.storage.emit("deselect",t,r,false)}};w.prototype.createReadStream=function(e){var t=this;if(!e)e={};if(e.pieceLength==null)e.pieceLength=t.pieceLength;var r=new c(t,e);t.storage.emit("select",r.startPiece,r.endPiece,true,r.notify.bind(r));f(r,function(){t.storage.emit("deselect",r.startPiece,r.endPiece,true)});return r};w.prototype.getBlobURL=function(e){var t=this;e=s(e);if(typeof window==="undefined"||window.URL===undefined||window.Blob===undefined){return e(new Error("file.blobURL requires window.URL and window.Blob support"))}function r(t,r){if(t)return e(t);var n=window.URL.createObjectURL(new window.Blob([r]));e(null,n)}if(t.storage.buffer){var n=function(){r(null,t.storage.buffer.slice(t.offset,t.offset+t.length))};if(t.done)n();else t.once("done",n)}else{t.getBuffer(r)}};w.prototype.getBuffer=function(e){var t=this;e=s(d(e));var r;if(t.storage.buffer){var i=function(){r=t.storage.buffer.slice(t.offset,t.offset+t.length);e(null,r)};if(t.done)i();else t.once("done",i)}else{r=new n(t.length);var o=0;t.createReadStream().on("data",function(e){e.copy(r,o);o+=e.length}).on("end",function(){e(null,r)}).on("error",e)}};w.prototype._checkDone=function(){var e=this;e.done=e.pieces.every(function(e){return e.verified});if(e.done){r.nextTick(function(){e.emit("done")})}};l(k,u);function k(e,t){var r=this;u.call(r);if(!a.enabled)r.setMaxListeners(0);if(!t)t={};r.bitfield=new i(e.pieces.length);r.done=false;r.closed=false;r.readonly=true;if(!t.nobuffer){r.buffer=new n(e.length)}var o=r.pieceLength=e.pieceLength;var s=e.lastPieceLength;var f=e.pieces.length;r.pieces=e.pieces.map(function(e,n){var i=n*o;var a=i+(n===f-1?s:o);var u=r.buffer?r.buffer.slice(i,a):a-i;var c=new b(n,e,u,!!t.noVerify);c.on("done",r._onPieceDone.bind(r,c));return c});r.files=e.files.map(function(e){var t=e.offset;var n=t+e.length-1;var i=t/o|0;var a=n/o|0;var s=r.pieces.slice(i,a+1);var f=new w(r,e,s,o);f.on("done",r._onFileDone.bind(r,f));return f})}k.BLOCK_LENGTH=g;k.prototype.load=function(e,t){var r=this;if(!Array.isArray(e))e=[e];t=d(t||function(){});var n=0;var i=new h(e);var a=new o(r.pieceLength,{zeroPadding:false});i.on("error",f);r.once("done",u);i.pipe(a).on("data",s).on("error",f);function s(e){var t=n;n+=1;var i=0;var a=new o(g,{zeroPadding:false});a.on("data",s);a.on("end",f);function s(e){var n=i*g;i+=1;r.writeBlock(t,n,e)}function f(){u()}function u(){a.removeListener("data",s);a.removeListener("end",f)}a.end(e)}function f(e){c();t(e)}function u(){c();t(null)}function c(){i.removeListener("error",f);a.removeListener("data",s);a.removeListener("error",f);r.removeListener("done",u)}};Object.defineProperty(k.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(k.prototype,"numMissing",{get:function(){var e=this;var t=e.pieces.length;for(var r=0,n=e.pieces.length;r<n;r++){t-=e.bitfield.get(r)}return t}});k.prototype.readBlock=function(e,t,r,n){var i=this;n=s(n);var o=i.pieces[e];if(!o)return n(new Error("invalid piece index "+e));o.readBlock(t,r,n)};k.prototype.writeBlock=function(e,t,r,n){var i=this;if(!n)n=_;n=s(n);if(i.readonly)return n(new Error("cannot write to readonly storage"));var o=i.pieces[e];if(!o)return n(new Error("invalid piece index "+e));o.writeBlock(t,r,n)};k.prototype.read=function(e,t,r,i){var o=this;if(typeof t==="function"){i=r;r=t;t=null}r=s(r);var a=o.pieces[e];if(!a){return r(new Error("invalid piece index "+e))}if(!a.verified&&!i){return r(new Error("Storage.read called on incomplete piece "+e))}var f=0;var u=a.length;if(t){f=t.offset||0;u=t.length||u}if(a.buffer){return r(null,a.buffer.slice(f,f+u))}var c=[];function l(){if(u<=0)return r(null,n.concat(c));var t=f;var i=Math.min(g,u);f+=i;u-=i;o.readBlock(e,t,i,function(e,t){if(e)return r(e);c.push(t);l()})}l()};k.prototype.reserveBlock=function(e,t){var r=this;var n=r.pieces[e];if(!n)return null;return n.reserveBlock(t)};k.prototype.cancelBlock=function(e,t){var r=this;var n=r.pieces[e];if(!n)return false;return n.cancelBlock(t)};k.prototype.remove=function(e){if(e)s(e)(null)};k.prototype.close=function(e){var t=this;t.closed=true;if(e)s(e)(null)};k.prototype._onPieceDone=function(e){var t=this;t.bitfield.set(e.index);a("piece done "+e.index+" ("+t.numMissing+" still missing)");t.emit("piece",e)};k.prototype._onFileDone=function(e){var t=this;a("file done "+e.name);t.emit("file",e);t._checkDone()};k.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,_process:52,bitfield:8,"block-stream2":32,buffer:45,debug:108,dezalgo:111,"end-of-stream":114,events:49,inherits:116,multistream:117,once:120,"simple-sha1":140}],6:[function(e,t,r){(function(r,n){t.exports=B;var i=e("addr-to-ip-port");var o=e("create-torrent");var a=e("debug")("webtorrent:torrent");var s=e("torrent-discovery");var f=e("events").EventEmitter;var u=e("fs");var c=e("simple-get");var l=e("inherits");var h=e("run-parallel");var d=e("parse-torrent");var p=e("re-emitter");var g=e("bittorrent-swarm");var m=e("uniq");var v=e("ut_metadata");var y=e("ut_pex");var _=e("./rarity-map");var b=e("./server");var w=e("./storage");var k=128*1024;var E=1e4;var x=5e3;var S=3*w.BLOCK_LENGTH;var A=.5;var I=1;var C=1e4;var T=2;function L(){}l(B,f);function B(e,t){var i=this;f.call(i);if(!a.enabled)i.setMaxListeners(0);a("new torrent");i.opts=t;i.client=t.client;i.hotswapEnabled="hotswap"in t?t.hotswap:true;i.verify=t.verify;i.chokeTimeout=t.chokeTimeout||x;i.pieceTimeout=t.pieceTimeout||E;i.strategy=t.strategy||"sequential";i._rechokeNumSlots=t.uploads===false||t.uploads===0?0:+t.uploads||10;i._rechokeOptimisticWire=null;i._rechokeOptimisticTime=0;i._rechokeIntervalId=null;i.ready=false;i.files=[];i.metadata=null;i.parsedTorrent=null;i.storage=null;i.numBlockedPeers=0;i._amInterested=false;i._destroyed=false;i._selections=[];i._critical=[];i._storageImpl=t.storage||w;var s;try{s=e&&e.parsedTorrent||d(e)}catch(l){}if(s&&s.infoHash){h(s)}else if(typeof c==="function"&&/^https?:/.test(e)){c.concat({url:e,headers:{"user-agent":"WebTorrent (http://webtorrent.io)"}},function(e,t){if(e){e=new Error("Error downloading torrent: "+e.message);return i.emit("error",e)}h(t)})}else if(typeof u.readFile==="function"){u.readFile(e,function(e,t){if(e)return i.emit("error",new Error("Invalid torrent identifier"));h(t)})}else throw new Error("Invalid torrent identifier");function h(e){try{i.parsedTorrent=d(e)}catch(t){return i.emit("error",new Error("Malformed torrent data: "+t.message))}i.infoHash=i.parsedTorrent.infoHash;if(!i.infoHash){return i.emit("error",new Error("Malformed torrent data: Missing info hash."))}if(i.parsedTorrent.name)i.name=i.parsedTorrent.name;if(i.parsedTorrent.announce.length===0){i.parsedTorrent.announce=[].concat.apply([],o.announce)}if(n.WEBTORRENT_ANNOUNCE){n.WEBTORRENT_ANNOUNCE.forEach(function(e){i.parsedTorrent.announce.push(e)});m(i.parsedTorrent.announce)}i.swarm=new g(i.infoHash,i.client.peerId,{handshake:{dht:!!i.client.dht}});p(i.swarm,i,["warning","error"]);i.swarm.on("wire",i._onWire.bind(i));i.swarm.on("download",i.client.downloadSpeed.bind(i.client));i.swarm.on("upload",i.client.uploadSpeed.bind(i.client));i.swarm.listen(i.client.torrentPort,i._onSwarmListening.bind(i));r.nextTick(function(){i.emit("infoHash")})}}Object.defineProperty(B.prototype,"length",{get:function(){return this.parsedTorrent&&this.parsedTorrent.length||0}});Object.defineProperty(B.prototype,"timeRemaining",{get:function(){if(this.swarm.downloadSpeed()===0)return Infinity;else return(this.length-this.downloaded)/this.swarm.downloadSpeed()*1e3}});Object.defineProperty(B.prototype,"progress",{get:function(){return this.parsedTorrent&&this.downloaded/this.parsedTorrent.length||0}});Object.defineProperty(B.prototype,"downloaded",{get:function(){return this.storage&&this.storage.downloaded||0}});Object.defineProperty(B.prototype,"uploaded",{get:function(){return this.swarm.uploaded}});Object.defineProperty(B.prototype,"ratio",{get:function(){return this.uploaded&&this.downloaded/this.uploaded||0}});Object.defineProperty(B.prototype,"magnetURI",{get:function(){return d.toMagnetURI(this.parsedTorrent)}});B.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.setTorrent(e.infoHash);e.discovery.on("peer",e.addPeer.bind(e));p(e.discovery,e,["dhtAnnounce","warning","error"]);if(e.parsedTorrent.info)e._onMetadata(e.parsedTorrent);e.emit("listening",e.client.torrentPort)};B.prototype._onMetadata=function(e){var t=this;if(t.metadata||t._destroyed)return;a("got metadata");if(e&&e.infoHash){t.metadata=d.toTorrentFile(e);t.parsedTorrent=e}else{t.metadata=e;try{t.parsedTorrent=d(t.metadata)}catch(n){return t.emit("error",n)}}t.name=t.parsedTorrent.name;t.discovery.setTorrent(t.parsedTorrent);t.rarityMap=new _(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();a("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){r.nextTick(function(){a("verifying existing torrent data");var e=0;var r=0;h(t.storage.pieces.map(function(n){return function(i){t.storage.read(n.index,function(o,s){e+=1;t.emit("verifying",{percentDone:100*e/t.storage.pieces.length,percentVerified:100*r/t.storage.pieces.length});if(!o&&s){n.verify(s);r+=n.verified;a("piece "+(n.verified?"verified":"invalid")+" "+n.index)}i()},true)}}),t._onStorage.bind(t))})}else{r.nextTick(t._onStorage.bind(t))}r.nextTick(function(){t.emit("metadata")})};B.prototype.destroy=function(e){var t=this;a("destroy");t._destroyed=true;clearInterval(t._rechokeIntervalId);var r=[];if(t.swarm)r.push(function(e){t.swarm.destroy(e)});if(t.discovery)r.push(function(e){t.discovery.stop(e)});if(t.storage)r.push(function(e){t.storage.close(e)});h(r,e)};B.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}};B.prototype.select=function(e,t,r,n){var i=this;if(e>t||e<0||t>=i.storage.pieces.length){throw new Error("invalid selection ",e,":",t)}r=Number(r)||0;a("select %s-%s (priority %s)",e,t,r);i._selections.push({from:e,to:t,offset:0,priority:r,notify:n||L});i._selections.sort(function(e,t){return t.priority-e.priority});i._updateSelections()};B.prototype.deselect=function(e,t,r){var n=this;r=Number(r)||0;a("deselect %s-%s (priority %s)",e,t,r);for(var i=0;i<n._selections.length;++i){var o=n._selections[i];if(o.from===e&&o.to===t&&o.priority===r){n._selections.splice(i--,1);break}}n._updateSelections()};B.prototype.critical=function(e,t){var r=this;a("critical %s-%s",e,t);for(var n=e;n<=t;++n){r._critical[n]=true}r._updateSelections()};B.prototype._onWire=function(e,t){var r=this;if(t){var n=i(t);e.remoteAddress=n[0];e.remotePort=n[1]}e.use(v(r.metadata));if(!r.metadata){e.ut_metadata.on("metadata",function(e){a("got metadata via ut_metadata");r._onMetadata(e)});e.ut_metadata.fetch()}if(typeof y==="function"){e.use(y());e.ut_pex.on("peer",function(e){a("ut_pex: got peer: %s (from %s)",e,t);r.addPeer(e)});e.ut_pex.on("dropped",function(e){a("ut_pex: dropped peer: %s (from %s)",e,t);if(!(e in r.swarm._peers))r.swarm._removePeer(e)})}e.setKeepAlive(true);if(e.peerExtensions.dht&&r.client.dht&&r.client.dht.listening){e.port(r.client.dht.address().port)}e.on("port",function(e){a("port: %s (from %s)",e,t);var n=i(t);if(r.client.dht)r.client.dht.addNode(n[0]+":"+e)});e.on("timeout",function(){a("wire timeout (%s)",t);e.destroy()});e.setTimeout(r.pieceTimeout,true);if(r.metadata){r._onWireWithMetadata(e)}};B.prototype._onWireWithMetadata=function(e){var t=this;var r=null;var n=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{r=setTimeout(i,n);if(r.unref)r.unref()}}var o=0;function s(){if(e.peerPieces.length!==t.storage.pieces.length)return;for(;o<t.storage.pieces.length;++o){if(!e.peerPieces.get(o))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(r)});e.on("choke",function(){clearTimeout(r);r=setTimeout(i,n);if(r.unref)r.unref()});e.on("unchoke",function(){clearTimeout(r);t._update()});e.on("request",function(r,n,i,o){if(i>k){a("got invalid block size request %s (from %s)",i,e.remoteAddress+":"+e.remotePort);return e.destroy()}t.storage.readBlock(r,n,i,o)});e.bitfield(t.storage.bitfield);e.interested();r=setTimeout(i,n);if(r.unref)r.unref();e.isSeeder=false;s()};B.prototype._onStorage=function(){var e=this;if(e._destroyed)return;a("on storage");e.storage.readonly=false;e.select(0,e.storage.pieces.length-1,false);e._rechokeIntervalId=setInterval(e._rechoke.bind(e),C);if(e._rechokeIntervalId.unref)e._rechokeIntervalId.unref();r.nextTick(function(){e.ready=true;e.emit("ready")})};B.prototype._onStoragePiece=function(e){var t=this;a("piece done %s",e.index);t._reservations[e.index]=null;t.swarm.wires.forEach(function(t){t.have(e.index)});t._gcSelections()};B.prototype._updateSelections=function(){var e=this;if(!e.swarm||e._destroyed)return;if(!e.metadata)return e.once("metadata",e._updateSelections.bind(e));r.nextTick(e._gcSelections.bind(e));e._updateInterest();e._update()};B.prototype._gcSelections=function(){var e=this;for(var t=0;t<e._selections.length;t++){var r=e._selections[t];var n=r.offset;while(e.storage.bitfield.get(r.from+r.offset)&&r.from+r.offset<r.to){r.offset++}if(n!==r.offset)r.notify();if(r.to!==r.from+r.offset)continue;if(!e.storage.bitfield.get(r.from+r.offset))continue;e._selections.splice(t--,1);r.notify();e._updateInterest()}if(!e._selections.length)e.emit("idle")};B.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")};B.prototype._update=function(){var e=this;if(e._destroyed)return;P(e.swarm.wires,e._updateWire.bind(e))};B.prototype._updateWire=function(e){var t=this;if(e.peerChoking)return;if(!e.downloaded)return o();var r=R(e,A);if(e.requests.length>=r)return;var n=R(e,I);f(false)||f(true);function i(t,r,n,i){return function(o){return o>=t&&o<=r&&!(o in n)&&e.peerPieces.get(o)&&(!i||i(o))}}function o(){if(e.requests.length)return;for(var r=t._selections.length;r--;){var n=t._selections[r];var o;if(t.strategy==="rarest"){var a=n.from+n.offset;var s=n.to;var f=s-a+1;var u={};var c=0;var l=i(a,s,u);while(c<f){o=t.rarityMap.getRarestPiece(l);if(o<0)break;if(t._request(e,o,false))return;u[o]=true;c+=1}}else{for(o=n.to;o>=n.from+n.offset;--o){if(!e.peerPieces.get(o))continue;if(t._request(e,o,false))return}}}}function a(){var r=e.downloadSpeed()||1;if(r>S)return function(){return true};var n=Math.max(1,e.requests.length)*w.BLOCK_LENGTH/r;var i=10;var o=0;return function(e){if(!i||t.storage.bitfield.get(e))return true;var a=t.storage.pieces[e];var s=a.blocks.length-a.blocksWritten;for(;o<t.swarm.wires.length;o++){var f=t.swarm.wires[o];var u=f.downloadSpeed();if(u<S)continue;if(u<=r)continue;if(!f.peerPieces.get(e))continue;if((s-=u*n)>0)continue;i--;return false}return true}}function s(e){var r=e;for(var n=e;n<t._selections.length&&t._selections[n].priority;n++){r=n}var i=t._selections[e];t._selections[e]=t._selections[r];t._selections[r]=i}function f(r){if(e.requests.length>=n)return true;var o=a();for(var f=0;f<t._selections.length;f++){var u=t._selections[f];var c;if(t.strategy==="rarest"){var l=u.from+u.offset;var h=u.to;var d=h-l+1;var p={};var g=0;var m=i(l,h,p,o);while(g<d){c=t.rarityMap.getRarestPiece(m);if(c<0)break;while(t._request(e,c,t._critical[c]||r)){}if(e.requests.length<n){p[c]=true;g++;continue}if(u.priority)s(f);return true}}else{for(c=u.from+u.offset;c<=u.to;c++){if(!e.peerPieces.get(c)||!o(c))continue;while(t._request(e,c,t._critical[c]||r)){}if(e.requests.length<n)continue;if(u.priority)s(f);return true}}}return false}};B.prototype._rechoke=function(){var e=this;if(e._rechokeOptimisticTime>0)e._rechokeOptimisticTime-=1;else e._rechokeOptimisticWire=null;var t=[];e.swarm.wires.forEach(function(r){if(!r.isSeeder&&r!==e._rechokeOptimisticWire){t.push({wire:r,downloadSpeed:r.downloadSpeed(),uploadSpeed:r.uploadSpeed(),salt:Math.random(),isChoked:true})}});t.sort(a);var r=0;var n=0;for(;n<t.length&&r<e._rechokeNumSlots;++n){t[n].isChoked=false;if(t[n].wire.peerInterested)r+=1}if(!e._rechokeOptimisticWire&&n<t.length&&e._rechokeNumSlots){var i=t.slice(n).filter(function(e){return e.wire.peerInterested});var o=i[M(i.length)];if(o){o.isChoked=false;e._rechokeOptimisticWire=o.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 a(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}};B.prototype._hotswap=function(e,t){var r=this;if(!r.hotswapEnabled)return false;var n=e.downloadSpeed();if(n<w.BLOCK_LENGTH)return false;if(!r._reservations[t])return false;var i=r._reservations[t];if(!i){return false}var o=Infinity;var a;var s;for(s=0;s<i.length;s++){var f=i[s];if(!f||f===e)continue;var u=f.downloadSpeed();if(u>=S)continue;if(2*u>n||u>o)continue;a=f;o=u}if(!a)return false;for(s=0;s<i.length;s++){if(i[s]===a)i[s]=null}for(s=0;s<a.requests.length;s++){var c=a.requests[s];if(c.piece!==t)continue;r.storage.cancelBlock(t,c.offset)}r.emit("hotswap",a,e,t);return true};B.prototype._request=function(e,t,n){var i=this;var o=e.requests.length;if(i.storage.bitfield.get(t))return false;var s=R(e,I);if(o>=s)return false;var f=e.requests.length===0&&i.storage.numMissing<30;var u=i.storage.reserveBlock(t,f);if(!u&&!f&&n&&i._hotswap(e,t)){u=i.storage.reserveBlock(t,false)}if(!u)return false;var c=i._reservations[t];if(!c){c=i._reservations[t]=[]}var l=c.indexOf(null);if(l===-1)l=c.length;c[l]=e;function h(n,o){if(!i.ready){i.once("ready",function(){h(n,o)});return}if(c[l]===e)c[l]=null;if(n){a("error getting piece %s (offset: %s length: %s) from %s: %s",t,u.offset,u.length,e.remoteAddress+":"+e.remotePort,n.message);i.storage.cancelBlock(t,u.offset);r.nextTick(i._update.bind(i));return false}else{a("got piece %s (offset: %s length: %s) from %s",t,u.offset,u.length,e.remoteAddress+":"+e.remotePort);i.storage.writeBlock(t,u.offset,o,function(e){if(e){a("error writing block");i.storage.cancelBlock(t,u.offset)}r.nextTick(i._update.bind(i))})}}e.request(t,u.offset,u.length,h);return true};B.prototype.createServer=function(e){var t=this;if(typeof b==="function"){return new b(t,e)}};function R(e,t){return Math.ceil(2+t*e.downloadSpeed()/w.BLOCK_LENGTH)}function M(e){return Math.random()*e|0}function P(e,t){var r=e.map(function(e,t){return t});for(var n=r.length-1;n>0;--n){var i=M(n+1);var o=r[n];r[n]=r[i];r[i]=o; +}r.forEach(function(r){t(e[r],r,e)})}}).call(this,e("_process"),typeof global!=="undefined"?global:typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{"./rarity-map":4,"./server":44,"./storage":5,_process:52,"addr-to-ip-port":7,"bittorrent-swarm":9,"create-torrent":71,debug:108,events:49,fs:43,inherits:116,"parse-torrent":121,"re-emitter":135,"run-parallel":136,"simple-get":44,"torrent-discovery":143,uniq:182,ut_metadata:183,ut_pex:44}],7:[function(e,t,r){var n=/^\[?([^\]]+)\]?:(\d+)$/;var i={};var o=0;t.exports=function a(e){if(o===1e5)i={};if(!i[e]){var t=n.exec(e);if(!t)throw new Error("invalid addr: "+e);i[e]=[t[1],Number(t[2])];o+=1}return i[e]};t.exports.reset=function s(){i={}}},{}],8:[function(e,t,r){(function(e){var r=typeof e!=="undefined"?e:typeof Int8Array!=="undefined"?Int8Array:function(e){var t=new Array(e);for(var r=0;r<e;r++)t[r]=0};function n(e,t){if(!(this instanceof n)){return new n(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 r(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}n.prototype.get=function(e){var t=e>>3;return t<this.buffer.length&&!!(this.buffer[t]&128>>e%8)};n.prototype.set=function(e,t){var r=e>>3;if(t||arguments.length===1){if(this.buffer.length<r+1)this._grow(Math.max(r+1,Math.min(2*this.buffer.length,this.grow)));this.buffer[r]|=128>>e%8}else if(r<this.buffer.length){this.buffer[r]&=~(128>>e%8)}};n.prototype._grow=function(e){if(this.buffer.length<e&&e<=this.grow){var t=new r(e);if(t.fill)t.fill(0);if(this.buffer.copy)this.buffer.copy(t,0);else{for(var n=0;n<this.buffer.length;n++){t[n]=this.buffer[n]}}this.buffer=t}};if(typeof t!=="undefined")t.exports=n}).call(this,e("buffer").Buffer)},{buffer:45}],9:[function(e,t,r){(function(r,n){t.exports=g;var i=e("addr-to-ip-port");var o=e("debug")("bittorrent-swarm");var a=e("dezalgo");var s=e("events").EventEmitter;var f=e("inherits");var u=e("net");var c=e("./lib/peer");var l=e("speedometer");var h=e("./lib/tcp-pool");var d=55;var p=[1e3,5e3,15e3];f(g,s);function g(e,t,r){var i=this;if(!(i instanceof g))return new g(e,t,r);s.call(i);i.infoHash=typeof e==="string"?new n(e,"hex"):e;i.infoHashHex=i.infoHash.toString("hex");i.peerId=typeof t==="string"?new n(t,"hex"):t;i.peerIdHex=i.peerId.toString("hex");if(!r)r={};o("new swarm (i %s p %s)",i.infoHashHex,i.peerIdHex);i.handshakeOpts=r.handshake;i.maxConns=r.maxConns!==undefined?r.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(g.prototype,"ratio",{get:function(){var e=this;return e.uploaded/e.downloaded||0}});Object.defineProperty(g.prototype,"numQueued",{get:function(){var e=this;return e._queue.length+(e._peersLength-e.numConns)}});Object.defineProperty(g.prototype,"numConns",{get:function(){var e=this;var t=0;for(var r in e._peers){var n=e._peers[r];if(n&&n.conn)t+=1}return t}});Object.defineProperty(g.prototype,"numPeers",{get:function(){var e=this;return e.wires.length}});g.prototype.addPeer=function(e){var t=this;if(t.destroyed){if(e&&e.destroy)e.destroy();return}if(typeof e==="string"&&!t._validAddr(e)){o("ignoring invalid peer %s (from swarm.addPeer)",e);return}var r=e&&e.id||e;if(t._peers[r])return;o("addPeer %s",r);var n;if(typeof e==="string"){n=c.createOutgoingTCPPeer(e,t);t._queue.push(n);t._drain()}else{n=c.createWebRTCPeer(e,t)}t._peers[n.id]=n;t._peersLength+=1};g.prototype._addIncomingPeer=function(e){var t=this;if(t.destroyed||t.paused)return e.destroy();if(!t._validAddr(e.addr)){o("ignoring invalid peer %s (from incoming)",e.addr);return e.destroy()}t._peers[e.id]=e;t._peersLength+=1};g.prototype._removePeer=function(e){var t=this;var r=t._peers[e];if(!r)return;o("_removePeer %s",e);t._peers[e]=null;t._peersLength-=1;r.destroy()};g.prototype.pause=function(){var e=this;if(e.destroyed)return;o("pause");e.paused=true};g.prototype.resume=function(){var e=this;if(e.destroyed)return;o("resume");e.paused=false;e._drain()};g.prototype.listen=function(e,t,n){var i=this;if(typeof t==="function"){n=t;t=undefined}if(n)n=a(n);if(i.listening)throw new Error("swarm already listening");if(r.browser){n()}else{i._port=e||h.getDefaultListenPort(i.infoHashHex);i._hostname=t;if(n)i.once("listening",n);o("listen %s",e);var s=h.addSwarm(i);i.server=s.server}};g.prototype._onListening=function(e){var t=this;t._port=e;t.listening=true;t.emit("listening")};g.prototype.address=function(){var e=this;return e.server.address()};g.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);o("destroy");for(var n in t._peers){t._removePeer(n)}h.removeSwarm(t);r.nextTick(function(){t.emit("close")})};g.prototype._drain=function(){var e=this;if(typeof u.connect!=="function"||e.destroyed||e.paused||e.numConns>=e.maxConns){return}o("drain (%s queued, %s/%s peers)",e.numQueued,e.numPeers,e.maxConns);var t=e._queue.shift();if(!t)return;o("tcp connect attempt to %s",t.addr);var r=i(t.addr);var n=t.conn=u.connect({port:r[1],host:r[0],localAddress:e._hostname});n.once("connect",function(){t.onConnect()});n.once("error",function(){t.destroy()});t.setTimeout();n.on("close",function(){if(e.destroyed||t.retries>=p.length){return}function r(){var r=c.createOutgoingTCPPeer(t.addr,e);r.retries=t.retries+1;e._queue.push(r);e._drain()}var n=setTimeout(r,p[t.retries]);if(n.unref)n.unref()})};g.prototype._onError=function(e){var t=this;t.emit("error",e);t.destroy()};g.prototype._validAddr=function(e){var t=this;var r=i(e);var n=r[0];var o=r[1];return o>0&&o<65535&&!(n==="127.0.0.1"&&o===t._port)}}).call(this,e("_process"),e("buffer").Buffer)},{"./lib/peer":10,"./lib/tcp-pool":11,_process:52,"addr-to-ip-port":44,buffer:45,debug:24,dezalgo:27,events:49,inherits:30,net:44,speedometer:31}],10:[function(e,t,r){var n=e("bittorrent-protocol");var i=25e3;r.createWebRTCPeer=function(e,t){var r=new o(e.id);r.conn=e;r.swarm=t;if(r.conn.connected){r.onConnect()}else{r.conn.once("connect",function(){r.onConnect()});r.conn.once("error",function(){r.destroy()});r.setTimeout()}return r};r.createIncomingTCPPeer=function(e,t){var r=new o(t);r.conn=e;r.addr=e.remoteAddress+":"+e.remotePort;r.onConnect();return r};r.createOutgoingTCPPeer=function(e,t){var r=new o(e);r.swarm=t;r.addr=e;return r};function o(e){var t=this;t.id=e;t.addr=null;t.conn=null;t.swarm=null;t.wire=null;t.destroyed=false;t.timeout=null;t.retries=0;t.gotHandshake=false;t.sentHandshake=false}o.prototype.onConnect=function(){var e=this;function t(){e.destroy()}var r=e.conn;r.once("end",t);r.once("close",t);r.once("finish",t);r.once("error",t);var i=e.wire=new n;i.once("end",t);i.once("finish",t);i.once("error",t);i.once("handshake",function(t){e.onHandshake(t)});e.setTimeout();r.pipe(i).pipe(r);if(e.swarm)e.handshake()};o.prototype.onHandshake=function(e){var t=this;if(!t.swarm)return;if(t.swarm.destroyed||e.toString("hex")!==t.swarm.infoHashHex){t.destroy();return}t.clearTimeout();t.gotHandshake=true;t.retries=0;t.wire.on("download",function(e){t.swarm.downloaded+=e;t.swarm.downloadSpeed(e);t.swarm.emit("download",e)});t.wire.on("upload",function(e){t.swarm.uploaded+=e;t.swarm.uploadSpeed(e);t.swarm.emit("upload",e)});if(!t.sentHandshake)t.handshake();t.swarm.wires.push(t.wire);var r=t.addr;if(!r&&t.conn.remoteAddress){r=t.conn.remoteAddress+":"+t.conn.remotePort}t.swarm.emit("wire",t.wire,r)};o.prototype.handshake=function(){var e=this;e.wire.handshake(e.swarm.infoHash,e.swarm.peerId,e.swarm.handshakeOpts);e.sentHandshake=true};o.prototype.setTimeout=function(){var e=this;if(e.timeout)clearTimeout(e.timeout);e.timeout=setTimeout(function(){e.destroy()},i);if(e.timeout.unref)e.timeout.unref()};o.prototype.clearTimeout=function(){var e=this;if(e.timeout)clearTimeout(e.timeout);e.timeout=null};o.prototype.destroy=function(){var e=this;if(e.destroyed)return;e.destroyed=true;if(e.conn)e.conn.destroy();e.swarm.wires.splice(e.swarm.wires.indexOf(e.wire),1);if(e.wire)e.wire.destroy();if(e.swarm){e.swarm._removePeer(e.id);e.swarm._drain()}if(e.timeout)clearTimeout(e.timeout);e.timeout=null;e.conn=null;e.swarm=null;e.wire=null}},{"bittorrent-protocol":12}],11:[function(e,t,r){(function(r){t.exports=s;var n=e("dezalgo");var i=e("net");var o=e("./peer");var a={};function s(e,t){var r=this;r.port=e;r.listening=false;r.swarms={};r.pendingConns=[];r.server=i.createServer();r.server.on("connection",function(e){r._onConnection(e)});r.server.on("error",function(e){r._onError(e)});r.server.on("listening",function(){r._onListening()});r.server.listen(r.port,t)}s.addSwarm=function(e){var t=a[e._port];if(!t)t=a[e._port]=new s(e._port,e._hostname);t.addSwarm(e);return t};s.removeSwarm=function(e){var t=a[e._port];if(!t)return;t.removeSwarm(e);var r=0;for(var n in t.swarms){var i=t.swarms[n];if(i)r+=1}if(r===0)t.destroy()};s.getDefaultListenPort=function(e){for(var t in a){var r=a[t];if(r&&!r.swarms[e])return r.port}return 0};s.prototype.addSwarm=function(e){var t=this;if(t.listening){r.nextTick(function(){e._onListening(t.port)})}if(t.swarms[e.infoHashHex]){r.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};s.prototype.removeSwarm=function(e){var t=this;t.swarms[e.infoHashHex]=null};s.prototype.destroy=function(e){var t=this;if(e)e=n(e);t.listening=false;t.pendingConns.forEach(function(e){e.destroy()});a[t.port]=null;try{t.server.close(e)}catch(r){if(e)e(null)}};s.prototype._onListening=function(){var e=this;var t=e.server.address().port;if(t!==e.port){a[e.port]=null;e.port=t;a[e.port]=e}e.listening=true;for(var r in e.swarms){var n=e.swarms[r];if(n)n._onListening(e.port)}};s.prototype._onConnection=function(e){var t=this;t.pendingConns.push(e);e.once("close",r);function r(){t.pendingConns.splice(t.pendingConns.indexOf(e))}var n=o.createIncomingTCPPeer(e);n.wire.once("handshake",function(i){r();e.removeListener("close",r);var o=t.swarms[i.toString("hex")];if(o){n.swarm=o;o._addIncomingPeer(n);n.onHandshake(i)}else{n.destroy()}})};s.prototype._onError=function(e){var t=this;t.destroy();for(var r in t.swarms){var n=t.swarms[r];if(n){t.removeSwarm(n);n._onError(e)}}}}).call(this,e("_process"))},{"./peer":10,_process:52,dezalgo:27,net:44}],12:[function(e,t,r){(function(r){t.exports=b;var n=e("bitfield");var i=e("bencode");var o=e("debug")("bittorrent-protocol");var a=e("xtend");var s=e("inherits");var f=e("speedometer");var u=e("stream");var c=4e5;var l=new r("BitTorrent protocol");var h=new r([0,0,0,0]);var d=new r([0,0,0,1,0]);var p=new r([0,0,0,1,1]);var g=new r([0,0,0,1,2]);var m=new r([0,0,0,1,3]);var v=[0,0,0,0,0,0,0,0];var y=[0,0,0,3,9,0,0];function _(e,t,r,n){this.piece=e;this.offset=t;this.length=r;this.callback=n}s(b,u.Duplex);function b(){if(!(this instanceof b))return new b;u.Duplex.call(this);o("new wire");this.amChoking=true;this.amInterested=false;this.peerChoking=true;this.peerInterested=false;this.peerPieces=new n(0,{grow:c});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()}b.prototype.setKeepAlive=function(e){clearInterval(this._keepAlive);if(e===false)return;this._keepAlive=setInterval(this._push.bind(this,h),6e4)};b.prototype.setTimeout=function(e,t){this._clearTimeout();this._timeoutMs=e;this._timeoutUnref=!!t;this._updateTimeout()};b.prototype.destroy=function(){this.destroyed=true;this.end()};b.prototype.end=function(){this._onUninterested();this._onChoke();u.Duplex.prototype.end.apply(this,arguments)};b.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 r=this._nextExt;var n=new e(this);function i(){}if(typeof n.onHandshake!=="function"){n.onHandshake=i}if(typeof n.onExtendedHandshake!=="function"){n.onExtendedHandshake=i}if(typeof n.onMessage!=="function"){n.onMessage=i}this.extendedMapping[r]=t;this._ext[t]=n;this[t]=n;this._nextExt+=1};b.prototype.handshake=function(e,t,n){if(typeof e==="string")e=new r(e,"hex");if(typeof t==="string")t=new r(t,"hex");if(e.length!==20||t.length!==20){throw new Error("infoHash and peerId MUST have length 20")}var i=new r(v);i[5]|=16;if(n&&n.dht)i[7]|=1;this._push(r.concat([l,i,e,t]));this._handshakeSent=true;if(this.peerExtensions.extended){this._sendExtendedHandshake()}};b.prototype._sendExtendedHandshake=function(){var e=a(this.extendedHandshake);e.m={};for(var t in this.extendedMapping){var r=this.extendedMapping[t];e.m[r]=Number(t)}this.extended(0,i.encode(e))};b.prototype.choke=function(){if(this.amChoking)return;this.amChoking=true;this.peerRequests.splice(0,this.peerRequests.length);this._push(d)};b.prototype.unchoke=function(){if(!this.amChoking)return;this.amChoking=false;this._push(p)};b.prototype.interested=function(){if(this.amInterested)return;this.amInterested=true;this._push(g)};b.prototype.uninterested=function(){if(!this.amInterested)return;this.amInterested=false;this._push(m)};b.prototype.have=function(e){this._message(4,[e],null)};b.prototype.bitfield=function(e){if(!r.isBuffer(e))e=e.buffer;this._message(5,[],e)};b.prototype.request=function(e,t,r,n){if(!n)n=function(){};if(this._finished)return n(new Error("wire is closed"));if(this.peerChoking)return n(new Error("peer is choking"));this.requests.push(new _(e,t,r,n));this._updateTimeout();this._message(6,[e,t,r],null)};b.prototype.piece=function(e,t,r){this.uploaded+=r.length;this.uploadSpeed(r.length);this.emit("upload",r.length);this._message(7,[e,t],r)};b.prototype.cancel=function(e,t,r){this._callback(w(this.requests,e,t,r),new Error("request was cancelled"),null);this._message(8,[e,t,r],null)};b.prototype.port=function(e){var t=new r(y);t.writeUInt16BE(e,5);this._push(t)};b.prototype.extended=function(e,t){if(typeof e==="string"&&this.peerExtendedMapping[e]){e=this.peerExtendedMapping[e]}if(typeof e==="number"){var n=new r([e]);var o=r.isBuffer(t)?t:i.encode(t);this._message(20,[],r.concat([n,o]))}else{throw new Error("Unrecognized extension: "+e)}};b.prototype._onKeepAlive=function(){this.emit("keep-alive")};b.prototype._onHandshake=function(e,t,r){this.peerId=t;this.peerExtensions=r;this.emit("handshake",e,t,r);var n;for(n in this._ext){this._ext[n].onHandshake(e,t,r)}if(r.extended&&this._handshakeSent){this._sendExtendedHandshake()}};b.prototype._onChoke=function(){this.peerChoking=true;this.emit("choke");while(this.requests.length){this._callback(this.requests.shift(),new Error("peer is choking"),null)}};b.prototype._onUnchoke=function(){this.peerChoking=false;this.emit("unchoke")};b.prototype._onInterested=function(){this.peerInterested=true;this.emit("interested")};b.prototype._onUninterested=function(){this.peerInterested=false;this.emit("uninterested")};b.prototype._onHave=function(e){if(this.peerPieces.get(e))return;this.peerPieces.set(e,true);this.emit("have",e)};b.prototype._onBitField=function(e){this.peerPieces=new n(e);this.emit("bitfield",this.peerPieces)};b.prototype._onRequest=function(e,t,r){if(this.amChoking)return;var n=function(n,o){if(i!==w(this.peerRequests,e,t,r))return;if(n)return;this.piece(e,t,o)}.bind(this);var i=new 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i=this._readableState;if(n.needTransform||i.needReadable||i.length<i.highWaterMark)this._read(i.highWaterMark)}};s.prototype._read=function(e){var t=this._transformState;if(t.writechunk!==null&&t.writecb&&!t.transforming){t.transforming=true;this._transform(t.writechunk,t.writeencoding,t.afterTransform)}else{t.needTransform=true}};function f(e,t){if(t)return e.emit("error",t);var r=e._writableState;var n=e._readableState;var i=e._transformState;if(r.length)throw new Error("calling transform done when ws.length != 0");if(i.transforming)throw new Error("calling transform done when still transforming");return e.push(null)}},{"./_stream_duplex":34,"core-util-is":39,inherits:116}],38:[function(e,t,r){(function(r){t.exports=f;var n=e("buffer").Buffer;f.WritableState=s;var i=e("core-util-is");i.inherits=e("inherits");var o=e("stream");i.inherits(f,o);function a(e,t,r){this.chunk=e;this.encoding=t;this.callback=r}function s(e,t){e=e||{};var 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i=n.isEncoding||function(e){switch(e&&e.toLowerCase()){case"hex":case"utf8":case"utf-8":case"ascii":case"binary":case"base64":case"ucs2":case"ucs-2":case"utf16le":case"utf-16le":case"raw":return true;default:return false}};function o(e){if(e&&!i(e)){throw new Error("Unknown encoding: "+e)}}var a=r.StringDecoder=function(e){this.encoding=(e||"utf8").toLowerCase().replace(/[-_]/,"");o(e);switch(this.encoding){case"utf8":this.surrogateSize=3;break;case"ucs2":case"utf16le":this.surrogateSize=2;this.detectIncompleteChar=f;break;case"base64":this.surrogateSize=3;this.detectIncompleteChar=u;break;default:this.write=s;return}this.charBuffer=new n(6);this.charReceived=0;this.charLength=0};a.prototype.write=function(e){var t="";while(this.charLength){var r=e.length>=this.charLength-this.charReceived?this.charLength-this.charReceived:e.length;e.copy(this.charBuffer,this.charReceived,0,r);this.charReceived+=r;if(this.charReceived<this.charLength){return""}e=e.slice(r,e.length);t=this.charBuffer.slice(0,this.charLength).toString(this.encoding);var n=t.charCodeAt(t.length-1);if(n>=55296&&n<=56319){this.charLength+=this.surrogateSize;t="";continue}this.charReceived=this.charLength=0;if(e.length===0){return t}break}this.detectIncompleteChar(e);var i=e.length;if(this.charLength){e.copy(this.charBuffer,0,e.length-this.charReceived,i);i-=this.charReceived}t+=e.toString(this.encoding,0,i);var i=t.length-1;var n=t.charCodeAt(i);if(n>=55296&&n<=56319){var o=this.surrogateSize;this.charLength+=o;this.charReceived+=o;this.charBuffer.copy(this.charBuffer,o,0,o);e.copy(this.charBuffer,0,0,o);return t.substring(0,i)}return t};a.prototype.detectIncompleteChar=function(e){var t=e.length>=3?3:e.length;for(;t>0;t--){var 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c(e);o.call(t);a(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(!r.browser&&!t.port)throw new Error("port required");if(t.dht)t._createDHT(t.dhtPort)}c.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}n("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))}};c.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 r.nextTick(function(){e(null)})};c.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,r){if(r===t.infoHash)t.emit("peer",e)});if(!t._externalDHT)t.dht.listen(e)};c.prototype._createTracker=function(){var e=this;if(!e.tracker)return;var t=e.torrent||{infoHash:e.infoHash,announce:e.announce};var r={rtcConfig:e.rtcConfig,wrtc:e.wrtc};e.tracker=new u(e.peerId,e.port,t,r);f(e.tracker,e,["peer","warning","error"]);e.tracker.start()};c.prototype._dhtLookupAndAnnounce=function(){var e=this;if(e._performedDHTLookup)return;e._performedDHTLookup=true;n("dht lookup");e.dht.lookup(e.infoHash,function(t){if(t||!e.port)return;n("dht announce");e.dht.announce(e.infoHash,e.port,function(){n("dht announce complete");e.emit("dhtAnnounce")})})}}).call(this,e("_process"))},{_process:52,"bittorrent-dht/client":44,"bittorrent-tracker/client":144,debug:176,events:49,inherits:179,"re-emitter":180,"xtend/mutable":181}],144:[function(e,t,r){(function(r){t.exports=h;var n=e("debug")("bittorrent-tracker");var i=e("events").EventEmitter;var o=e("inherits");var a=e("once");var s=e("url");var f=e("./lib/common");var u=e("./lib/http-tracker");var c=e("./lib/udp-tracker");var l=e("./lib/websocket-tracker");o(h,i);function h(e,t,o,a){var d=this;if(!(d instanceof h))return new h(e,t,o,a);i.call(d);if(!a)a={};d._peerId=r.isBuffer(e)?e:new r(e,"hex");d._port=t;d._infoHash=r.isBuffer(o.infoHash)?o.infoHash:new r(o.infoHash,"hex");d.torrentLength=o.length;d._rtcConfig=a.rtcConfig;d._wrtc=a.wrtc;d._numWant=a.numWant||f.DEFAULT_ANNOUNCE_PEERS;d._intervalMs=a.interval||f.DEFAULT_ANNOUNCE_INTERVAL;n("new client %s",d._infoHash.toString("hex"));var p={interval:d._intervalMs};var g=!!d._wrtc||typeof window!=="undefined";var m=typeof o.announce==="string"?[o.announce]:o.announce==null?[]:o.announce;d._trackers=m.map(function(e){var t=s.parse(e).protocol;if((t==="http:"||t==="https:")&&typeof u==="function"){return new u(d,e,p)}else if(t==="udp:"&&typeof c==="function"){return new c(d,e,p)}else if((t==="ws:"||t==="wss:")&&g){return new l(d,e,p)}return null}).filter(Boolean)}h.scrape=function(e,t,n){n=a(n);var i=new r("01234567890123456789");var o=6881;var s={infoHash:Array.isArray(t)?t[0]:t,announce:[e]};var f=new h(i,o,s);f.once("error",n);var u=Array.isArray(t)?t.length:1;var c={};f.on("scrape",function(e){u-=1;c[e.infoHash]=e;if(u===0){f.destroy();var t=Object.keys(c);if(t.length===1){n(null,c[t[0]])}else{n(null,c)}}});t=Array.isArray(t)?t.map(function(e){return new r(e,"hex")}):new r(t,"hex");f.scrape({infoHash:t})};h.prototype.start=function(e){var t=this;n("send `start`");e=t._defaultAnnounceOpts(e);e.event="started";t._announce(e);t._trackers.forEach(function(e){e.setInterval(t._intervalMs)})};h.prototype.stop=function(e){var t=this;n("send `stop`");e=t._defaultAnnounceOpts(e);e.event="stopped";t._announce(e)};h.prototype.complete=function(e){var t=this;n("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)};h.prototype.update=function(e){var t=this;n("send `update`");e=t._defaultAnnounceOpts(e);if(e.event)delete e.event;t._announce(e)};h.prototype._announce=function(e){var t=this;t._trackers.forEach(function(t){t.announce(e)})};h.prototype.scrape=function(e){var t=this;n("send `scrape`");if(!e)e={};t._trackers.forEach(function(t){t.scrape(e)})};h.prototype.setInterval=function(e){var t=this;n("setInterval");t._intervalMs=e;t._trackers.forEach(function(t){t.setInterval(e)})};h.prototype.destroy=function(){var e=this;n("destroy");e._trackers.forEach(function(e){e.destroy();e.setInterval(0)});e._trackers=[]};h.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("buffer").Buffer)},{"./lib/common":146,"./lib/http-tracker":44,"./lib/udp-tracker":44,"./lib/websocket-tracker":147,buffer:45,debug:148,events:49,inherits:152,once:154,url:70}],145:[function(e,t,r){(function(t){var n=e("querystring");r.IPV4_RE=/^[\d\.]+$/;r.IPV6_RE=/^[\da-fA-F:]+$/;r.CONNECTION_ID=t.concat([i(1047),i(655366528)]);r.ACTIONS={CONNECT:0,ANNOUNCE:1,SCRAPE:2,ERROR:3};r.EVENTS={update:0,completed:1,started:2,stopped:3};r.EVENT_IDS={0:"update",1:"completed",2:"started",3:"stopped"};r.EVENT_NAMES={update:"update",completed:"complete",started:"start",stopped:"stop"};function i(e){var r=new t(4);r.writeUInt32BE(e,0);return r}r.toUInt32=i;r.querystringParse=function(e){var t=n.unescape;n.unescape=unescape;var r=n.parse(e);n.unescape=t;return r};r.querystringStringify=function(e){var t=n.escape;n.escape=escape;var r=n.stringify(e);r=r.replace(/[\@\*\/\+]/g,function(e){return"%"+e.charCodeAt(0).toString(16).toUpperCase()});n.escape=t;return r}}).call(this,e("buffer").Buffer)},{buffer:45,querystring:56}],146:[function(e,t,r){(function(t){var n=e("xtend/mutable");r.DEFAULT_ANNOUNCE_INTERVAL=30*60*1e3;r.DEFAULT_ANNOUNCE_PEERS=50;r.MAX_ANNOUNCE_PEERS=82;r.binaryToHex=function(e){return new t(e,"binary").toString("hex")};r.hexToBinary=function(e){return new t(e,"hex").toString("binary")};var i=e("./common-node");n(r,i)}).call(this,e("buffer").Buffer)},{"./common-node":145,buffer:45,"xtend/mutable":175}],147:[function(e,t,r){t.exports=h;var n=e("debug")("bittorrent-tracker:websocket-tracker");var i=e("events").EventEmitter;var o=e("hat");var a=e("inherits");var s=e("simple-peer");var f=e("simple-websocket");var u=e("./common");var c=30*1e3;var l=5*1e3;a(h,i);function h(e,t,r){var o=this;i.call(o);n("new websocket tracker %s",t);o.client=e;o.destroyed=false;o._opts=r;o._announceUrl=t;o._peers={};o._socket=null;o._intervalMs=o.client._intervalMs;o._interval=null;o._openSocket()}h.prototype.announce=function(e){var t=this;if(!t._socket.connected){return t._socket.once("connect",t.announce.bind(t,e))}e.info_hash=t.client._infoHash.toString("binary");e.peer_id=t.client._peerId.toString("binary");if(e.numWant>5)e.numWant=5;t._generateOffers(e.numWant,function(r){e.offers=r;if(t._trackerId){e.trackerid=t._trackerId}t._send(e)})};h.prototype.scrape=function(e){var t=this;t._onSocketError(new Error("scrape not supported "+t._announceUrl))};h.prototype.setInterval=function(e){var t=this;clearInterval(t._interval);t._intervalMs=e;if(e){var r=t.announce.bind(t,t.client._defaultAnnounceOpts());t._interval=setInterval(r,t._intervalMs)}};h.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;try{e._socket.close()}catch(t){}e._socket=null};h.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=new f(e._announceUrl+"?"+o(40));e._socket.on("data",e._onSocketDataBound);e._socket.on("close",e._onSocketCloseBound);e._socket.on("error",e._onSocketErrorBound)};h.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._infoHash.toString("binary")){return t.client.emit("warning",new Error("Invalid tracker response"))}n("received %s from %s",JSON.stringify(e),t._announceUrl);var r=e["failure reason"];if(r)return t.client.emit("warning",new Error(r));var i=e["warning message"];if(i)t.client.emit("warning",new Error(i));var o=e.interval||e["min interval"];if(o&&!t._opts.interval&&t._intervalMs!==0){t.setInterval(o*1e3)}var a=e["tracker id"];if(a){t._trackerId=a}if(e.complete){t.client.emit("update",{announce:t._announceUrl,complete:e.complete,incomplete:e.incomplete})}var f;if(e.offer){f=new s({trickle:false,config:t.client._rtcConfig,wrtc:t.client._wrtc});f.id=u.binaryToHex(e.peer_id);f.once("signal",function(r){var n={info_hash:t.client._infoHash.toString("binary"),peer_id:t.client._peerId.toString("binary"),to_peer_id:e.peer_id,answer:r,offer_id:e.offer_id};if(t._trackerId)n.trackerid=t._trackerId;t._send(n)});f.signal(e.offer);t.client.emit("peer",f)}if(e.answer){f=t._peers[u.binaryToHex(e.offer_id)];if(f){f.id=u.binaryToHex(e.peer_id);f.signal(e.answer);t.client.emit("peer",f)}else{n("got unexpected answer: "+JSON.stringify(e.answer))}}};h.prototype._onSocketClose=function(){var e=this;e.destroy();var t=Math.floor(Math.random()*c)+l;setTimeout(function(){e._openSocket()},t);n("reconnecting socket in %s ms",t)};h.prototype._onSocketError=function(e){var t=this;if(t.destroyed)return;t.client.emit("error",e)};h.prototype._send=function(e){var t=this;if(t.destroyed)return;var r=JSON.stringify(e);n("send %s",r);t._socket.send(r)};h.prototype._generateOffers=function(e,t){var r=this;var i=[];n("generating %s offers",e);for(var a=0;a<e;++a){f()}function f(){var e=o(160);var t=r._peers[e]=new s({initiator:true,trickle:false,config:r.client._rtcConfig,wrtc:r.client._wrtc});t.once("signal",function(t){i.push({offer:t,offer_id:u.hexToBinary(e)});c()})}function c(){if(i.length===e){n("generated %s offers",e);t(i)}}}},{"./common":146,debug:148,events:49,hat:151,inherits:152,"simple-peer":155,"simple-websocket":167}],148:[function(e,t,r){arguments[4][18][0].apply(r,arguments)},{"./debug":149,dup:18}],149:[function(e,t,r){arguments[4][19][0].apply(r,arguments)},{dup:19,ms:150}],150:[function(e,t,r){arguments[4][20][0].apply(r,arguments)},{dup:20}],151:[function(e,t,r){arguments[4][115][0].apply(r,arguments)},{dup:115}],152:[function(e,t,r){arguments[4][21][0].apply(r,arguments)},{dup:21}],153:[function(e,t,r){arguments[4][29][0].apply(r,arguments)},{dup:29}],154:[function(e,t,r){arguments[4][99][0].apply(r,arguments)},{dup:99,wrappy:153}],155:[function(e,t,r){(function(r){t.exports=l;var n=e("debug")("simple-peer");var i=e("xtend/mutable");var o=e("hat");var a=e("inherits");var s=e("is-typedarray");var f=e("once");var u=e("stream");var c=e("typedarray-to-buffer");a(l,u.Duplex);function l(e){var t=this;if(!(t instanceof l))return new l(e);if(!e)e={};i(t,{initiator:false,stream:false,config:l.config,constraints:l.constraints,channelName:e&&e.initiator?o(160):null,channelConfig:l.channelConfig,trickle:true,allowHalfOpen:false,highWaterMark:1024*1024},e);u.Duplex.call(t,e);var r=e.wrtc||h();if(!r&&typeof window==="undefined"){throw new Error("Missing WebRTC support - You must supply "+"`opts.wrtc` in this environment")}else if(!r){throw new Error("Missing WebRTC support - is this a supported browser?")}t._wrtc=r;t._debug("new peer (initiator: %s)",t.initiator);t.destroyed=false;t.connected=false;t.remoteAddress=undefined;t.remoteFamily=undefined;t.remotePort=undefined;t.localAddress=undefined;t.localPort=undefined;t._pcReady=false;t._channelReady=false;t._iceComplete=false;t._channel=null;t._chunk=null;t._cb=null;t._interval;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=f(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)})}})}l.WEBRTC_SUPPORT=!!h();l.config={iceServers:[{url:"stun:23.21.150.121",urls:"stun:23.21.150.121"}]};l.constraints={};l.channelConfig={};Object.defineProperty(l.prototype,"bufferSize",{get:function(){var e=this;return e._channel&&e._channel.bufferedAmount||0}});l.prototype.address=function(){var e=this;return{port:e.localPort,family:"IPv4",address:e.localAddress}};l.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(r){e={}}}t._debug("signal()");if(e.sdp){t._pc.setRemoteDescription(new t._wrtc.RTCSessionDescription(e),function(){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(r){t._destroy(new Error("error adding candidate: "+r.message))}}if(!e.sdp&&!e.candidate){t._destroy(new Error("signal() called with invalid signal data"))}};l.prototype.send=function(e){var t=this;if(!s.strict(e)&&!(e instanceof ArrayBuffer)&&!r.isBuffer(e)&&typeof e!=="string"&&(typeof Blob==="undefined"||!(e instanceof Blob))){e=JSON.stringify(e)}if(r.isBuffer(e)&&!s.strict(e)){e=new Uint8Array(e)}var n=e.length||e.byteLength||e.size;t._channel.send(e);t._debug("write: %d bytes",n)};l.prototype.destroy=function(e){var t=this;t._destroy(null,e)};l.prototype._destroy=function(e,t){var r=this;if(r.destroyed)return;if(t)r.once("close",t);r._debug("destroy (error: %s)",e&&e.message);r.destroyed=true;r.connected=false;r._pcReady=false;r._channelReady=false;clearInterval(r._interval);r._interval=null;r._chunk=null;r._cb=null;if(r._pc){try{r._pc.close()}catch(e){}r._pc.oniceconnectionstatechange=null;r._pc.onsignalingstatechange=null;r._pc.onicecandidate=null}if(r._channel){try{r._channel.close()}catch(e){}r._channel.onmessage=null;r._channel.onopen=null;r._channel.onclose=null}r._pc=null;r._channel=null;r.readable=r.writable=false;if(!r._readableState.ended)r.push(null);if(!r._writableState.finished)r.end();if(e)r.emit("error",e);r.emit("close")};l.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)};l.prototype._read=function(){};l.prototype._write=function(e,t,r){var n=this;if(n.destroyed)return r(new Error("cannot write after peer is destroyed"));if(n.connected){n.send(e);if(n._channel.bufferedAmount){n._debug("start backpressure: bufferedAmount %d",n._channel.bufferedAmount);n._cb=r}else{r(null)}}else{n._debug("write before connect");n._chunk=e;n._cb=r}};l.prototype._createOffer=function(){var e=this;if(e.destroyed)return;e._pc.createOffer(function(t){if(e.destroyed)return;d(t);e._pc.setLocalDescription(t,p,e._onError.bind(e));var r=function(){e._debug("signal");e.emit("signal",e._pc.localDescription||t)};if(e.trickle||e._iceComplete)r();else e.once("_iceComplete",r)},e._onError.bind(e),e.offerConstraints)};l.prototype._createAnswer=function(){var e=this;if(e.destroyed)return;e._pc.createAnswer(function(t){if(e.destroyed)return;d(t);e._pc.setLocalDescription(t,p,e._onError.bind(e));var r=function(){e._debug("signal");e.emit("signal",e._pc.localDescription||t)};if(e.trickle||e._iceComplete)r();else e.once("_iceComplete",r)},e._onError.bind(e),e.answerConstraints)};l.prototype._onIceConnectionStateChange=function(){var e=this;if(e.destroyed)return;var t=e._pc.iceGatheringState;var r=e._pc.iceConnectionState;e._debug("iceConnectionStateChange %s %s",t,r);e.emit("iceConnectionStateChange",t,r);if(r==="connected"||r==="completed"){e._pcReady=true;e._maybeReady()}if(r==="closed"){e._destroy()}};l.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 r=[];e.forEach(function(e){r.push(e)});t(r)},e._onError.bind(e))}else{e._pc.getStats(function(e){var r=[];e.result().forEach(function(e){var t={};e.names().forEach(function(r){t[r]=e.stat(r)});t.id=e.id;t.type=e.type;t.timestamp=e.timestamp;r.push(t)});t(r)})}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 r=e._cb;e._cb=null;r(null)}e._interval=setInterval(function(){if(!e._cb||!e._channel||e._channel.bufferedAmount)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")}};l.prototype._onSignalingStateChange=function(){ +var e=this;if(e.destroyed)return;e._debug("signalingStateChange %s",e._pc.signalingState);e.emit("signalingStateChange",e._pc.signalingState)};l.prototype._onIceCandidate=function(e){var t=this;if(t.destroyed)return;if(e.candidate&&t.trickle){t.emit("signal",{candidate:e.candidate})}else if(!e.candidate){t._iceComplete=true;t.emit("_iceComplete")}};l.prototype._onChannelMessage=function(e){var t=this;if(t.destroyed)return;var r=e.data;t._debug("read: %d bytes",r.byteLength||r.length);if(r instanceof ArrayBuffer){r=c(new Uint8Array(r));t.push(r)}else{try{r=JSON.parse(r)}catch(n){}t.emit("data",r)}};l.prototype._onChannelOpen=function(){var e=this;if(e.connected||e.destroyed)return;e._debug("on channel open");e._channelReady=true;e._maybeReady()};l.prototype._onChannelClose=function(){var e=this;if(e.destroyed)return;e._debug("on channel close");e._destroy()};l.prototype._onAddStream=function(e){var t=this;if(t.destroyed)return;t._debug("on add stream");t.emit("stream",e.stream)};l.prototype._onError=function(e){var t=this;if(t.destroyed)return;t._debug("error %s",e.message||e);t._destroy(e)};l.prototype._debug=function(){var e=this;var t=[].slice.call(arguments);var r=e.channelName&&e.channelName.substring(0,7);t[0]="["+r+"] "+t[0];n.apply(null,t)};function h(){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 d(e){var t=e.sdp.split("b=AS:30");if(t.length>1)e.sdp=t[0]+"b=AS:1638400"+t[1]}function p(){}}).call(this,e("buffer").Buffer)},{buffer:45,debug:156,hat:159,inherits:160,"is-typedarray":161,once:163,stream:68,"typedarray-to-buffer":164,"xtend/mutable":166}],156:[function(e,t,r){arguments[4][18][0].apply(r,arguments)},{"./debug":157,dup:18}],157:[function(e,t,r){arguments[4][19][0].apply(r,arguments)},{dup:19,ms:158}],158:[function(e,t,r){arguments[4][20][0].apply(r,arguments)},{dup:20}],159:[function(e,t,r){arguments[4][115][0].apply(r,arguments)},{dup:115}],160:[function(e,t,r){arguments[4][21][0].apply(r,arguments)},{dup:21}],161:[function(e,t,r){arguments[4][93][0].apply(r,arguments)},{dup:93}],162:[function(e,t,r){arguments[4][29][0].apply(r,arguments)},{dup:29}],163:[function(e,t,r){arguments[4][99][0].apply(r,arguments)},{dup:99,wrappy:162}],164:[function(e,t,r){arguments[4][92][0].apply(r,arguments)},{buffer:45,dup:92,"is-typedarray":165}],165:[function(e,t,r){arguments[4][93][0].apply(r,arguments)},{dup:93}],166:[function(e,t,r){t.exports=n;function n(e){for(var t=1;t<arguments.length;t++){var r=arguments[t];for(var n in r){if(r.hasOwnProperty(n)){e[n]=r[n]}}}return e}},{}],167:[function(e,t,r){(function(r){t.exports=c;var n=e("debug")("simple-websocket");var i=e("inherits");var o=e("is-typedarray");var a=e("stream");var s=e("typedarray-to-buffer");var f=e("ws");var u=typeof window!=="undefined"?window.WebSocket:f;i(c,a.Duplex);function c(e,t){var r=this;if(!(r instanceof c))return new c(e,t);if(!t)t={};n("new websocket: %s %o",e,t);t.allowHalfOpen=false;a.Duplex.call(r,t);r.url=e;r.connected=false;r.destroyed=false;r._chunk=null;r._cb=null;r._interval=null;r._ws=window.ws=new u(r.url);r._ws.binaryType="arraybuffer";r._ws.onopen=r._onOpen.bind(r);r._ws.onmessage=r._onMessage.bind(r);r._ws.onclose=r._onClose.bind(r);r._ws.onerror=r._onError.bind(r);r.on("finish",function(){if(r.connected){setTimeout(function(){r._destroy()},100)}else{r.once("connect",function(){setTimeout(function(){r._destroy()},100)})}})}c.prototype.send=function(e){var t=this;if(!o.strict(e)&&!(e instanceof ArrayBuffer)&&!r.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);n("write: %d bytes",i)};c.prototype.destroy=function(e){var t=this;t._destroy(null,e)};c.prototype._destroy=function(e,t){var r=this;if(r.destroyed)return;if(t)r.once("close",t);n("destroy (error: %s)",e&&e.message);if(!r._readableState.ended)r.push(null);if(!r._writableState.finished)r.end();r.connected=false;r.destroyed=true;clearInterval(r._interval);r._interval=null;r._chunk=null;r._cb=null;if(r._ws){try{r._ws.close()}catch(e){}r._ws.onopen=null;r._ws.onmessage=null;r._ws.onclose=null;r._ws.onerror=null}r._ws=null;this.readable=this.writable=false;if(e)r.emit("error",e);r.emit("close")};c.prototype._read=function(){};c.prototype._write=function(e,t,r){var i=this;if(i.destroyed)return r(new Error("cannot write after socket is destroyed"));if(i.connected){i.send(e);if(typeof f!=="function"&&i._ws.bufferedAmount){n("start backpressure: bufferedAmount %d",i._ws.bufferedAmount);i._cb=r}else{r(null)}}else{n("write before connect");i._chunk=e;i._cb=r}};c.prototype._onMessage=function(e){var t=this;if(t.destroyed)return;var i=e.data;n("read: %d bytes",i.byteLength||i.length);if(i instanceof ArrayBuffer){i=s(new Uint8Array(i));t.push(i)}else if(r.isBuffer(i)){t.push(i)}else{try{i=JSON.parse(i)}catch(o){}t.emit("data",i)}};c.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;n('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)return;n("ending backpressure: bufferedAmount %d",e._ws.bufferedAmount);var t=e._cb;e._cb=null;t(null)},150);if(e._interval.unref)e._interval.unref()}n("connect");e.emit("connect")};c.prototype._onClose=function(){var e=this;if(e.destroyed)return;n("on close");e._destroy()};c.prototype._onError=function(){var e=this;if(e.destroyed)return;var t=new Error("connection error to "+e.url);n("error: %s",t.message||t);e._destroy(t)}}).call(this,e("buffer").Buffer)},{buffer:45,debug:168,inherits:171,"is-typedarray":172,stream:68,"typedarray-to-buffer":173,ws:44}],168:[function(e,t,r){arguments[4][18][0].apply(r,arguments)},{"./debug":169,dup:18}],169:[function(e,t,r){arguments[4][19][0].apply(r,arguments)},{dup:19,ms:170}],170:[function(e,t,r){arguments[4][20][0].apply(r,arguments)},{dup:20}],171:[function(e,t,r){arguments[4][21][0].apply(r,arguments)},{dup:21}],172:[function(e,t,r){arguments[4][93][0].apply(r,arguments)},{dup:93}],173:[function(e,t,r){arguments[4][92][0].apply(r,arguments)},{buffer:45,dup:92,"is-typedarray":174}],174:[function(e,t,r){arguments[4][93][0].apply(r,arguments)},{dup:93}],175:[function(e,t,r){arguments[4][166][0].apply(r,arguments)},{dup:166}],176:[function(e,t,r){arguments[4][18][0].apply(r,arguments)},{"./debug":177,dup:18}],177:[function(e,t,r){arguments[4][19][0].apply(r,arguments)},{dup:19,ms:178}],178:[function(e,t,r){arguments[4][20][0].apply(r,arguments)},{dup:20}],179:[function(e,t,r){arguments[4][21][0].apply(r,arguments)},{dup:21}],180:[function(e,t,r){arguments[4][135][0].apply(r,arguments)},{dup:135,events:49}],181:[function(e,t,r){arguments[4][166][0].apply(r,arguments)},{dup:166}],182:[function(e,t,r){arguments[4][125][0].apply(r,arguments)},{dup:125}],183:[function(e,t,r){(function(r){var n=e("bencode");var i=e("bitfield");var o=e("events").EventEmitter;var a=e("inherits");var s=e("simple-sha1");var f=1e7;var u=1e3;var c=16*1024;t.exports=function(e){a(t,o);function t(t){o.call(this);this._wire=t;this._metadataComplete=false;this._metadataSize=null;this._remainingRejects=null;this._fetching=false;this._bitfield=new i(0,{grow:u});if(r.isBuffer(e)){this.setMetadata(e)}}t.prototype.name="ut_metadata";t.prototype.onHandshake=function(e,t,r){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/c);this._remainingRejects=this._numPieces*2;if(this._fetching){this._requestPieces()}};t.prototype.onMessage=function(e){var t,r;try{var i=e.toString();var o=i.indexOf("ee")+2;t=n.decode(i.substring(0,o));r=e.slice(o)}catch(a){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);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=n.decode(e).info;if(t){e=n.encode(t)}}catch(r){}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",n.encode({info:n.decode(this.metadata)}));return true};t.prototype._send=function(e,t){var i=n.encode(e);if(r.isBuffer(t)){i=r.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,r){var n={msg_type:1,piece:e};if(typeof r==="number"){n.total_size=r}this._send(n,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*c;var r=t+c;if(r>this._metadataSize){r=this._metadataSize}var n=this.metadata.slice(t,r);this._data(e,n,this._metadataSize)};t.prototype._onData=function(e,t,r){if(t.length>c){return}t.copy(this.metadata,e*c);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 r(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 r=this.setMetadata(this.metadata);if(!r){this._failedMetadata()}};t.prototype._failedMetadata=function(){this._bitfield=new i(0,{grow:u});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:184,bitfield:188,buffer:45,events:49,inherits:189,"simple-sha1":190}],184:[function(e,t,r){arguments[4][13][0].apply(r,arguments)},{"./lib/decode":185,"./lib/encode":187,dup:13}],185:[function(e,t,r){arguments[4][14][0].apply(r,arguments)},{"./dict":186,buffer:45,dup:14}],186:[function(e,t,r){arguments[4][15][0].apply(r,arguments)},{dup:15}],187:[function(e,t,r){arguments[4][16][0].apply(r,arguments)},{buffer:45,dup:16}],188:[function(e,t,r){arguments[4][8][0].apply(r,arguments)},{buffer:45,dup:8}],189:[function(e,t,r){arguments[4][21][0].apply(r,arguments)},{dup:21}],190:[function(e,t,r){arguments[4][106][0].apply(r,arguments)},{dup:106,rusha:191}],191:[function(e,t,r){arguments[4][107][0].apply(r,arguments)},{dup:107}],192:[function(e,t,r){arguments[4][23][0].apply(r,arguments)},{dup:23}],193:[function(e,t,r){t.exports=function n(e,t,r){if(t===undefined){return function(t,r){return n(e,t,r)}}if(r===undefined)r="0";e-=t.toString().length;if(e>0)return new Array(e+(/\./.test(t)?2:1)).join(r)+t;return t+""}},{}],194:[function(e,t,r){t.exports={name:"webtorrent",description:"Streaming torrent client",version:"0.40.1",author:{name:"Feross 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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)}); |