text: !function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var t;"undefined"!=typeof window?t=window:"undefined"!=typeof global?t=global:"undefined"!=typeof self&&(t=self),t.WebTorrent=e()}}(function(){return function e(t,n,r){function i(s,a){if(!n[s]){if(!t[s]){var c="function"==typeof require&&require;if(!a&&c)return c(s,!0);if(o)return o(s,!0);var u=new Error("Cannot find module '"+s+"'");throw u.code="MODULE_NOT_FOUND",u}var f=n[s]={exports:{}};t[s][0].call(f.exports,function(e){var n=t[s][1][e];return i(n?n:e)},f,f.exports,e,t,n,r)}return n[s].exports}for(var o="function"==typeof require&&require,s=0;s<r.length;s++)i(r[s]);return i}({1:[function(e,t){function n(e,t){var i=this;if(!(i instanceof n))return new n(e,t);s.Readable.call(i,t),r("new filestream %s",JSON.stringify(t)),t||(t={}),t.start||(t.start=0),t.end||(t.end=e.length-1),i.length=t.end-t.start+1;var a=t.start+e.offset,c=t.pieceLength;i.startPiece=a/c|0,i.endPiece=(t.end+e.offset)/c|0,i._extname=o.extname(e.name),i._storage=e.storage,i._piece=i.startPiece,i._missing=i.length,i._reading=!1,i._notifying=!1,i._destroyed=!1,i._criticalLength=Math.min(1048576/c|0,2),i._offset=a-i.startPiece*c}t.exports=n;var r=e("debug")("webtorrent:file-stream"),i=e("inherits"),o=e("path"),s=e("stream"),a=e("./video-stream");i(n,s.Readable),n.prototype._read=function(){r("_read");var e=this;e._reading||(e._reading=!0,e.notify())},n.prototype.notify=function(){r("notify");var e=this;if(e._reading&&0!==e._missing){if(!e._storage.bitfield.get(e._piece))return e._storage.emit("critical",e._piece,e._piece+e._criticalLength);if(!e._notifying){e._notifying=!0;var t=e._piece;r("before read %s",t),e._storage.read(e._piece++,function(n,i){if(r("after read %s (buffer.length %s) (err %s)",t,i.length,n&&n.message||n),e._notifying=!1,!e._destroyed){if(n)return e._storage.emit("error",n),e.destroy(n);e._offset&&(i=i.slice(e._offset),e._offset=0),e._missing<i.length&&(i=i.slice(0,e._missing)),e._missing-=i.length,r("pushing buffer of length %s",i.length),e._reading=!1,e.push(i),0===e._missing&&e.push(null)}})}}},n.prototype.pipe=function(e){var t=this,n=s.Readable.prototype.pipe;if(e&&"VIDEO"===e.nodeName){var r=".webm"===t._extname?'video/webm; codecs="vorbis,vp8"':".mp4"===t._extname?'video/mp4; codecs="avc1.42c01e,mp4a.40.2"':void 0;return n.call(t,new a(e,{type:r}))}return n.call(t,e)},n.prototype.destroy=function(){var e=this;e._destroyed||(e._destroyed=!0)}},{"./video-stream":5,debug:44,inherits:56,path:18,stream:31}],2:[function(e,t){function n(e,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)})}var r=this;r.swarm=e,r.numPieces=t,r.swarm.wires.forEach(n),r.swarm.on("wire",function(e){r.recalculate(),n(e)}),r.recalculate()}t.exports=n,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 n=0;n<e.numPieces;++n)e.pieces[n]+=t.peerPieces.get(n)})},n.prototype.getRarestPiece=function(e){var t=this,n=[],r=1/0;e=e||function(){return!0};for(var i=0;i<t.numPieces;++i)if(e(i)){var o=t.pieces[i];o===r?n.push(i):r>o&&(n=[i],r=o)}return n.length>0?n[Math.random()*n.length|0]:-1}},{}],3:[function(e,t){(function(n,r){function i(){}function o(e,t,n){var r=this;l.call(r),r.index=e,r.hash=t,"number"==typeof n?(r.buffer=null,r.length=n):(r.buffer=n,r.length=n.length),r._reset()}function s(e,t,n,r){var i=this;l.call(i),i.storage=e,i.name=t.name,i.path=t.path,i.length=t.length,i.offset=t.offset,i.pieces=n,i.pieceLength=r,i.done=!1,i.pieces.forEach(function(e){e.on("done",function(){i._checkDone()})}),i._checkDone()}function a(e,t){var n=this;l.call(n),t=t||{},n.bitfield=new c(e.pieces.length),n.done=!1,n.closed=!1,n.readonly=!0,t.nobuffer||(n.buffer=new r(e.length));var i=n.pieceLength=e.pieceLength,a=e.lastPieceLength,u=e.pieces.length;n.pieces=e.pieces.map(function(e,t){var r=t*i,s=r+(t===u-1?a:i),c=n.buffer?n.buffer.slice(r,s):s-r,f=new o(t,e,c);return f.on("done",n._onPieceDone.bind(n,f)),f}),n.files=e.files.map(function(e){var t=e.offset,r=t+e.length-1,o=t/i|0,a=r/i|0,c=n.pieces.slice(o,a+1),u=new s(n,e,c,i);return u.on("done",n._onFileDone.bind(n,u)),u})}t.exports=a;var c=e("bitfield"),u=e("block-stream"),f=e("debug")("webtorrent:storage"),h=e("dezalgo"),d=e("end-of-stream"),l=e("events").EventEmitter,p=e("extend.js"),g=e("./file-stream"),m=e("inherits"),_=e("multistream"),v=e("once"),y=e("git-sha1"),b=(e("stream"),16384),w=0,k=1,E=2;m(o,l),o.prototype.readBlock=function(e,t,n){var r=this;return n=h(n),r.buffer&&r._verifyOffset(e)?void n(null,r.buffer.slice(e,e+t)):n(new Error("invalid block offset "+e))},o.prototype.writeBlock=function(e,t,n){var r=this;if(n=h(n),!r._verifyOffset(e)||!r._verifyBlock(e,t))return n(new Error("invalid block "+e+":"+t.length));r._lazyAllocBuffer();var i=e/b;return r.blocks[i]===E?n(null):(t.copy(r.buffer,e),r.blocks[i]=E,r.blocksWritten+=1,r.blocksWritten===r.blocks.length&&r.verify(),void n(null))},o.prototype.reserveBlock=function(e){for(var t=this,n=t.blocks.length,r=0;n>r;r++)if((!t.blocks[r]||e)&&t.blocks[r]!==E)return t.blocks[r]=k,{offset:r*b,length:r===n-1?t.length-r*b:b};return null},o.prototype.cancelBlock=function(e){var t=this;if(!t.buffer||!t._verifyOffset(e))return!1;var n=e/b;return t.blocks[n]===k&&(t.blocks[n]=w),!0},o.prototype._reset=function(){var e=this;e.verified=!1,e.blocks=new r(Math.ceil(e.length/b)),e.blocks.fill(0),e.blocksWritten=0},o.prototype.verify=function(e){var t=this;e=e||t.buffer,!t.verified&&e&&(t.verified=y(e)===t.hash,t.verified?t.emit("done"):(t.emit("warning",new Error("piece "+t.index+" failed verification; "+y(e)+" expected "+t.hash)),t._reset()))},o.prototype._verifyOffset=function(e){var t=this;return e%b===0?!0:(t.emit("warning",new Error("piece "+t.index+" invalid offset "+e+" not multiple of "+b+" bytes")),!1)},o.prototype._verifyBlock=function(e,t){var n=this;return t.length===b?!0:t.length===n.length-e&&n.length-e<b?!0:(n.emit("warning",new Error("piece "+n.index+" invalid block of size "+t.length+" bytes")),!1)},o.prototype._lazyAllocBuffer=function(){var e=this;e.buffer||(e.buffer=new r(e.length))},m(s,l),s.prototype.select=function(){var e=this;e.pieces.length>0&&e.storage.emit("select",e.pieces[0].index,e.pieces[e.pieces.length-1].index,!1)},s.prototype.deselect=function(){var e=this;e.pieces.length>0&&e.storage.emit("deselect",e.pieces[0].index,e.pieces[e.pieces.length-1].index,!1)},s.prototype.createReadStream=function(e){var t=this;f("createReadStream"),e=p({pieceLength:t.pieceLength},e);var n=new g(t,e);return t.storage.emit("select",n.startPiece,n.endPiece,!0,n.notify.bind(n)),d(n,function(){t.storage.emit("deselect",n.startPiece,n.endPiece,!0)}),n},s.prototype._checkDone=function(){var e=this;e.done=e.pieces.every(function(e){return e.verified}),e.done&&n.nextTick(function(){e.emit("done")})},m(a,l),a.BLOCK_LENGTH=b,a.prototype.load=function(e,t){var n=this;Array.isArray(e)||(e=[e]),t||(t=function(){}),t=v(t);var r=0;new _(e).pipe(new u(n.pieceLength,{nopad:!0})).on("data",function(e){var t=r;r+=1;var i=0,o=new u(b,{nopad:!0});o.on("data",function(e){var r=i*b;i+=1,n.writeBlock(t,r,e)}),o.end(e)}).on("end",function(){t(null)}).on("error",function(e){t(e)})},Object.defineProperty(a.prototype,"downloaded",{get:function(){var e=this;return e.pieces.reduce(function(e,t){return e+(t.verified?t.length:t.blocksWritten*b)},0)}}),Object.defineProperty(a.prototype,"numMissing",{get:function(){for(var e=this,t=e.pieces.length,n=0,r=e.pieces.length;r>n;n++)t-=e.bitfield.get(n);return t}}),a.prototype.readBlock=function(e,t,n,r){var i=this;r=h(r);var o=i.pieces[e];return o?void o.readBlock(t,n,r):r(new Error("invalid piece index "+e))},a.prototype.writeBlock=function(e,t,n,r){var o=this;if(r||(r=i),r=h(r),o.readonly)return r(new Error("cannot write to readonly storage"));var s=o.pieces[e];return s?void s.writeBlock(t,n,r):r(new Error("invalid piece index "+e))},a.prototype.read=function(e,t,n,i){function o(){if(0>=u)return n(null,r.concat(f));var t=c,i=Math.min(b,u);c+=i,u-=i,s.readBlock(e,t,i,function(e,t){return e?n(e):(f.push(t),void o())})}var s=this;"function"==typeof t&&(i=n,n=t,t=null),n=h(n);var a=s.pieces[e];if(!a)return n(new Error("invalid piece index "+e));if(!a.verified&&!i)return n(new Error("Storage.read called on incomplete piece "+e));var c=0,u=a.length;if(t&&(c=t.offset||0,u=t.length||u),a.buffer)return n(null,a.buffer.slice(c,c+u));var f=[];o()},a.prototype.reserveBlock=function(e,t){var n=this,r=n.pieces[e];return r?r.reserveBlock(t):null},a.prototype.cancelBlock=function(e,t){var n=this,r=n.pieces[e];return r?r.cancelBlock(t):!1},a.prototype.remove=function(e){e&&h(e)(null)},a.prototype.close=function(e){var t=this;t.closed=!0,e&&h(e)(null)},a.prototype._onPieceDone=function(e){var t=this;t.bitfield.set(e.index),f("piece done "+e.index+" ("+t.numMissing+" still missing)"),t.emit("piece",e)},a.prototype._onFileDone=function(e){var t=this;f("file done "+e.name),t.emit("file",e),t._checkDone()},a.prototype._checkDone=function(){var e=this;!e.done&&e.files.every(function(e){return e.done})&&(e.done=!0,e.emit("done"))}}).call(this,e("_process"),e("buffer").Buffer)},{"./file-stream":1,_process:19,bitfield:7,"block-stream":8,buffer:12,debug:44,dezalgo:47,"end-of-stream":50,events:16,"extend.js":51,"git-sha1":54,inherits:56,multistream:57,once:59,stream:31}],4:[function(e,t){(function(n){function r(){}function i(e,t){function r(e){o=m(e),i.infoHash=o.infoHash,o.name&&(i.name=o.name),i.swarm=new w(i.infoHash,i.client.peerId,{handshake:{dht:!!i.client.dht}}),v(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)),n.browser?i._onSwarmListening(o):i.swarm.listen(i.client.torrentPort,i._onSwarmListening.bind(i,o)),n.nextTick(function(){i.emit("infoHash")})}var i=this;h.call(i),u("new torrent"),i.client=t.client,i.hotswapEnabled="hotswap"in t?t.hotswap:!0,i.verify=t.verify,i.storageOpts=t.storageOpts,i.chokeTimeout=t.chokeTimeout||L,i.pieceTimeout=t.pieceTimeout||I,i.strategy=t.strategy||"sequential",i._rechokeNumSlots=t.uploads===!1||0===t.uploads?0:+t.uploads||10,i._rechokeOptimisticWire=null,i._rechokeOptimisticTime=0,i._rechokeIntervalId=null,i.ready=!1,i.files=[],i.metadata=null,i.parsedTorrent=null,i.storage=null,i.numBlockedPeers=0,i._amInterested=!1,i._destroyed=!1,i._selections=[],i._critical=[],i._storageImpl=t.storage||b;var o=m(e);if(o&&o.infoHash)r(o);else if("function"==typeof l.get&&/^https?:/.test(e))l.get(e,function(e){e.pipe(c(function(e){r(e)}))}).on("error",function(e){i.emit("error",new Error("error downloading torrent: "+e.message))});else{if("function"!=typeof d.readFile)throw new Error("invalid torrent id");d.readFile(e,function(e,t){return e?i.emit("error",new Error("invalid torrent id")):void r(t)})}}function o(e){return Math.random()*e|0}function s(e,t){for(var n=e.map(function(e,t){return t}),r=0,i=n.length;i>r;++r){var s=o(i),a=n[r];n[r]=n[s],n[s]=a}n.forEach(function(n){t(e[n],n,e)})}t.exports=i;var a=e("addr-to-ip-port"),c=e("concat-stream"),u=e("debug")("webtorrent:torrent"),f=e("torrent-discovery"),h=e("events").EventEmitter,d=e("fs"),l=e("http-https"),p=e("inherits"),g=e("run-parallel"),m=e("parse-torrent"),_=e("./rarity-map"),v=e("re-emitter"),y=e("./server"),b=e("./storage"),w=e("bittorrent-swarm"),k=e("ut_metadata"),E=e("ut_pex"),x=131072,S=5,I=1e4,L=5e3,A=3*b.BLOCK_LENGTH,B=1e4,T=2;p(i,h),Object.defineProperty(i.prototype,"length",{get:function(){return this.parsedTorrent&&this.parsedTorrent.length||0}}),Object.defineProperty(i.prototype,"timeRemaining",{get:function(){return 0===this.swarm.downloadSpeed()?1/0:(this.length-this.downloaded)/this.swarm.downloadSpeed()*1e3}}),Object.defineProperty(i.prototype,"progress",{get:function(){return this.parsedTorrent&&this.downloaded/this.parsedTorrent.length||0}}),Object.defineProperty(i.prototype,"downloaded",{get:function(){return this.storage&&this.storage.downloaded||0}}),Object.defineProperty(i.prototype,"uploaded",{get:function(){return this.swarm.uploaded}}),Object.defineProperty(i.prototype,"ratio",{get:function(){return this.uploaded&&this.downloaded/this.uploaded||0}}),i.prototype._onSwarmListening=function(e,t){var n=this;n._destroyed||(n.client.torrentPort=t,n.discovery=new f({announce:e.announce,dht:n.client.dht,tracker:n.client.tracker,peerId:n.client.peerId,port:t}),n.discovery.setTorrent(n.infoHash),n.discovery.on("peer",n.addPeer.bind(n)),v(n.discovery,n,["dhtAnnounce","warning","error"]),e.info&&n._onMetadata(e),n.emit("listening",t))},i.prototype._onMetadata=function(e){var t=this;if(!t.metadata&&!t._destroyed){if(u("got metadata"),e&&e.infoHash)t.metadata=m.toBuffer(e),t.parsedTorrent=e;else{t.metadata=e;try{t.parsedTorrent=m(t.metadata)}catch(r){return t.emit("error",r)}}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.storageOpts),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(){t.discovery.tracker&&t.discovery.tracker.complete(),u("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){e.ut_metadata&&e.ut_metadata.setMetadata(t.metadata),t._onWireWithMetadata(e)}),n.nextTick(t.verify?function(){u("verifying existing torrent data");var e=0,n=0;g(t.storage.pieces.map(function(r){return function(i){t.storage.read(r.index,function(o,s){e+=1,t.emit("verifying",{percentDone:100*e/t.storage.pieces.length,percentVerified:100*n/t.storage.pieces.length}),!o&&s&&(r.verify(s),n+=r.verified,u("piece "+(r.verified?"verified":"invalid")+" "+r.index)),i()},!0)}}),t._onStorage.bind(t))}:t._onStorage.bind(t)),n.nextTick(function(){t.emit("metadata")})}},i.prototype.destroy=function(e){var t=this;u("destroy"),t._destroyed=!0,clearInterval(t._rechokeIntervalId);var n=[];t.swarm&&n.push(function(e){t.swarm.destroy(e)}),t.discovery&&n.push(function(e){t.discovery.stop(e)}),t.storage&&n.push(function(e){t.storage.close(e)}),g(n,e)},i.prototype.addPeer=function(e){var t=this;"string"==typeof e&&t.client.blocked&&t.client.blocked.contains(a(e)[0])?(t.numBlockedPeers+=1,t.emit("blocked-peer",e)):(t.emit("peer",e),t.swarm.addPeer(e))},i.prototype.select=function(e,t,n,i){var o=this;if(e>t||0>e||t>=o.storage.pieces.length)throw new Error("invalid selection ",e,":",t);n=Number(n)||0,u("select %s-%s (priority %s)",e,t,n),o._selections.push({from:e,to:t,offset:0,priority:n,notify:i||r}),o._selections.sort(function(e,t){return t.priority-e.priority}),o._updateSelections()},i.prototype.deselect=function(e,t,n){var r=this;n=Number(n)||0,u("deselect %s-%s (priority %s)",e,t,n);for(var i=0;i<r._selections.length;++i){var o=r._selections[i];if(o.from===e&&o.to===t&&o.priority===n){r._selections.splice(i--,1);break}}r._updateSelections()},i.prototype.critical=function(e,t){var n=this;u("critical %s-%s",e,t);for(var r=e;t>=r;++r)n._critical[r]=!0;n._updateSelections()},i.prototype._onWire=function(e){var t=this;e.use(k(t.metadata)),t.metadata||(e.ut_metadata.on("metadata",function(e){u("got metadata via ut_metadata"),t._onMetadata(e)}),e.ut_metadata.fetch()),"function"==typeof E&&e.use(E()),e.ut_pex&&e.ut_pex.on("peer",function(e){u("got peer via ut_pex "+e),t.addPeer(e)}),e.ut_pex&&e.ut_pex.on("dropped",function(e){e in t.swarm._peers||t.swarm.removePeer(e)}),e.setKeepAlive(!0),e.peerExtensions.dht&&t.client.dht&&t.client.dht.port&&e.port(t.client.dht.port),e.on("port",function(){u("port message from "+e.remoteAddress)}),e.on("timeout",function(){u("wire timeout from "+e.remoteAddress),e.destroy()}),e.setTimeout(t.pieceTimeout),t.metadata&&t._onWireWithMetadata(e)},i.prototype._onWireWithMetadata=function(e){function t(){r._destroyed||e._destroyed||(r.swarm.numQueued>2*(r.swarm.numConns-r.swarm.numPeers)&&e.amInterested?e.destroy():i=setTimeout(t,o))}function n(){if(e.peerPieces.length===r.storage.pieces.length){for(;s<r.storage.pieces.length;++s)if(!e.peerPieces.get(s))return;e.isSeeder=!0,e.choke()}}var r=this,i=null,o=r.chokeTimeout,s=0;e.on("bitfield",function(){n(),r._update()}),e.on("have",function(){n(),r._update()}),e.once("interested",function(){e.unchoke()}),e.on("close",function(){clearTimeout(i)}),e.on("choke",function(){clearTimeout(i),i=setTimeout(t,o)}),e.on("unchoke",function(){clearTimeout(i),r._update()}),e.on("request",function(t,n,i,o){return i>x?(u(e.remoteAddress,"requested invalid block size",i),e.destroy()):void r.storage.readBlock(t,n,i,o)}),e.bitfield(r.storage.bitfield),e.interested(),i=setTimeout(t,o),e.isSeeder=!1,n()},i.prototype._onStorage=function(){var e=this;u("on storage"),e.storage.readonly=!1,e.select(0,e.storage.pieces.length-1,!1),e._rechokeIntervalId=setInterval(e._rechoke.bind(e),B),e._rechokeIntervalId.unref&&e._rechokeIntervalId.unref(),n.nextTick(function(){e.ready=!0,e.emit("ready")})},i.prototype._onStoragePiece=function(e){var t=this;u("piece done %s",e.index),t._reservations[e.index]=null,t.swarm.wires.forEach(function(t){t.have(e.index)}),t._gcSelections()},i.prototype._updateSelections=function(){var e=this;if(e.swarm&&!e._destroyed){if(!e.metadata)return e.once("metadata",e._updateSelections.bind(e));n.nextTick(e._gcSelections.bind(e)),e._updateInterest(),e._update()}},i.prototype._gcSelections=function(){for(var e=this,t=0;t<e._selections.length;t++){for(var n=e._selections[t],r=n.offset;e.storage.bitfield.get(n.from+n.offset)&&n.from+n.offset<n.to;)n.offset++;r!==n.offset&&n.notify(),n.to===n.from+n.offset&&e.storage.bitfield.get(n.from+n.offset)&&(e._selections.splice(t--,1),n.notify(),e._updateInterest())}e._selections.length||e.emit("idle")},i.prototype._updateInterest=function(){var e=this,t=e._amInterested;e._amInterested=!!e._selections.length,e.swarm.wires.forEach(function(t){e._amInterested?t.interested():t.uninterested()}),t!==e._amInterested&&e.emit(e._amInterested?"interested":"uninterested")},i.prototype._update=function(){var e=this;e._destroyed||s(e.swarm.wires,e._updateWire.bind(e))},i.prototype._updateWire=function(e){function t(t,n,r,i){return function(o){return o>=t&&n>=o&&!(o in r)&&e.peerPieces.get(o)&&(!i||i(o))}}function n(){if(!e.requests.length)for(var n=s._selections.length;n--;){var r,i=s._selections[n];if("rarest"===s.strategy)for(var o=i.from+i.offset,a=i.to,c=a-o+1,u={},f=0,h=t(o,a,u);c>f&&(r=s.rarityMap.getRarestPiece(h),!(0>r));){if(s._request(e,r,!1))return;u[r]=!0,f+=1}else for(r=i.to;r>=i.from+i.offset;--r)if(e.peerPieces.get(r)&&s._request(e,r,!1))return}}function r(){var t=e.downloadSpeed()||1;if(t>A)return function(){return!0};var n=S*b.BLOCK_LENGTH/t,r=10,i=0;return function(e){if(!r||s.storage.bitfield.get(e))return!0;for(var 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e=this;e.ready=!0,e.emit("ready")},i.prototype._onSocketWarning=function(e){s("tracker warning %s",e.message)},i.prototype._onSocketMessage=function(e){var t=this;if("object"!=typeof e||null===e)return t.client.emit("warning",new Error("Invalid tracker response"));if(e.info_hash===t.client._infoHash.toString("binary")){s("received %s from %s",JSON.stringify(e),t._announceUrl);var n=e["failure reason"];if(n)return t.client.emit("warning",new Error(n));var r=e["warning message"];r&&t.client.emit("warning",new Error(r));var i=e.interval||e["min interval"];i&&!t._opts.interval&&0!==t._intervalMs&&t.setInterval(1e3*i);var a=e["tracker id"];a&&(t._trackerId=a),e.complete&&t.client.emit("update",{announce:t._announceUrl,complete:e.complete,incomplete:e.incomplete});var u;e.offer&&(u=new h({trickle:!1}),u.id=o(e.peer_id),u.once("signal",function(n){var r={info_hash:t.client._infoHash.toString("binary"),peer_id:t.client._peerId.toString("binary"),to_peer_id:e.peer_id};t._trackerId&&(r.trackerid=t._trackerId),t._send(c({answer:n,offer_id:e.offer_id},r))}),u.signal(e.offer),t.client.emit("peer",u)),e.answer&&(u=t._peers[e.offer_id],u&&(u.signal(e.answer),t.client.emit("peer",u)))}},i.prototype._announce=function(e){var t=this;return t.ready?void t._generateOffers(function(n){e=c({uploaded:0,downloaded:0,info_hash:t.client._infoHash.toString("binary"),peer_id:t.client._peerId.toString("binary"),offers:n},e),null!=t.client.torrentLength&&null==e.left&&(e.left=t.client.torrentLength-(e.downloaded||0)),t._trackerId&&(e.trackerid=t._trackerId),t._send(e)}):t._init(t._announce.bind(t,e))},i.prototype._send=function(e){var t=this;s("send %s",JSON.stringify(e)),t._socket.send(e)},i.prototype._generateOffers=function(e){function t(){var e=u(160),t=r._peers[e]=new h({initiator:!0,trickle:!1});t.once("signal",function(t){i.push({offer:t,offer_id:e}),n()})}function n(){i.length===r.client._numWant&&(s("generated %s offers",r.client._numWant),e(i))}var r=this,i=[];s("generating %s offers",r.client._numWant);for(var o=0;o<r.client._numWant;++o)t()},i.prototype.setInterval=function(e){var t=this;clearInterval(t._interval),t._intervalMs=e,e&&(t._interval=setInterval(t.update.bind(t),t._intervalMs))}}).call(this,e("buffer").Buffer)},{buffer:12,debug:44,events:16,"extend.js":51,hat:55,inherits:56,"simple-peer":73,"simple-websocket":76}],73:[function(e,t){function n(e){return this instanceof n?(o.call(this),e=s({initiator:!1,stream:!1,config:n.config,constraints:n.constraints,channelName:e&&e.initiator?a(160):null,trickle:!0},e),s(this,e),i("new peer initiator: %s channelName: %s",this.initiator,this.channelName),this.destroyed=!1,this.ready=!1,this._pcReady=!1,this._channelReady=!1,this._dataStreams=[],this._iceComplete=!1,this._pc=new l(this.config,this.constraints),this._pc.oniceconnectionstatechange=this._onIceConnectionStateChange.bind(this),this._pc.onsignalingstatechange=this._onSignalingStateChange.bind(this),this._pc.onicecandidate=this._onIceCandidate.bind(this),this._channel=null,this.stream&&this._setupVideo(this.stream),void(this.initiator?(this._setupData({channel:this._pc.createDataChannel(this.channelName)}),this._pc.onnegotiationneeded=f(function(){this._pc.createOffer(function(e){this._pc.setLocalDescription(e);var t=function(){this.emit("signal",this._pc.localDescription||e)}.bind(this);this.trickle||this._iceComplete?t():this.once("_iceComplete",t)}.bind(this),this._onError.bind(this))}.bind(this)),window.mozRTCPeerConnection&&setTimeout(this._pc.onnegotiationneeded.bind(this._pc),0)):this._pc.ondatachannel=this._setupData.bind(this))):new n(e)}function r(e){h.Duplex.call(this,e),this._peer=e._peer,i("new stream")}t.exports=n;var i=e("debug")("simple-peer"),o=e("events").EventEmitter,s=e("extend.js"),a=e("hat"),c=e("inherits"),u=e("is-typedarray"),f=e("once"),h=e("stream"),d=e("typedarray-to-buffer"),l="undefined"!=typeof window&&(window.mozRTCPeerConnection||window.RTCPeerConnection||window.webkitRTCPeerConnection),p="undefined"!=typeof window&&(window.mozRTCSessionDescription||window.RTCSessionDescription||window.webkitRTCSessionDescription),g="undefined"!=typeof window&&(window.mozRTCIceCandidate||window.RTCIceCandidate||window.webkitRTCIceCandidate);c(n,o),n.config={iceServers:[{url:"stun:23.21.150.121"}]},n.constraints={},n.prototype.send=function(e,t){return this._channelReady?(i("send %s",e),this._channel.send(u.strict(e)||e instanceof ArrayBuffer||e instanceof Blob||"string"==typeof e?e:JSON.stringify(e)),void(t&&t(null))):this.once("ready",this.send.bind(this,e,t))},n.prototype.signal=function(e){if(!this.destroyed){if("string"==typeof e)try{e=JSON.parse(e)}catch(t){e={}}if(i("signal %s",JSON.stringify(e)),e.sdp&&this._pc.setRemoteDescription(new p(e),function(){var e="offer"===this._pc.remoteDescription.type;e&&this._pc.createAnswer(function(e){this._pc.setLocalDescription(e);var t=function(){this.emit("signal",this._pc.localDescription||e)}.bind(this);this.trickle||this._iceComplete?t():this.once("_iceComplete",t)}.bind(this),this._onError.bind(this))}.bind(this),this._onError.bind(this)),e.candidate)try{this._pc.addIceCandidate(new g(e.candidate))}catch(t){this.destroy(new Error("error adding candidate, "+t.message))}e.sdp||e.candidate||this.destroy(new Error("signal() called with invalid signal data"))}},n.prototype.destroy=function(e,t){if(!this.destroyed){if(i("destroy (error: %s)",e&&e.message),this.destroyed=!0,this.ready=!1,"function"==typeof e&&(t=e,e=null),t&&this.once("close",t),this._pc){try{this._pc.close()}catch(e){}this._pc.oniceconnectionstatechange=null,this._pc.onsignalingstatechange=null,this._pc.onicecandidate=null}if(this._channel){try{this._channel.close()}catch(e){}this._channel.onmessage=null,this._channel.onopen=null,this._channel.onclose=null}this._pc=null,this._channel=null,this._dataStreams.forEach(function(t){e&&t.emit("error",e),t._readableState.ended||t.push(null),t._writableState.finished||t.end()}),this._dataStreams=[],e&&this.emit("error",e),this.emit("close")}},n.prototype.getDataStream=function(e){if(this.destroyed)throw new Error("peer is destroyed");var t=new r(s({_peer:this},e));return this._dataStreams.push(t),t},n.prototype._setupData=function(e){this._channel=e.channel,this.channelName=this._channel.label,this._channel.binaryType="arraybuffer",this._channel.onmessage=this._onChannelMessage.bind(this),this._channel.onopen=this._onChannelOpen.bind(this),this._channel.onclose=this._onChannelClose.bind(this)},n.prototype._setupVideo=function(e){this._pc.addStream(e),this._pc.onaddstream=this._onAddStream.bind(this)},n.prototype._onIceConnectionStateChange=function(){var e=this._pc.iceGatheringState,t=this._pc.iceConnectionState;this.emit("iceConnectionStateChange",e,t),i("iceConnectionStateChange %s %s",e,t),("connected"===t||"completed"===t)&&(this._pcReady=!0,this._maybeReady()),("disconnected"===t||"closed"===t)&&this.destroy()},n.prototype._maybeReady=function(){i("maybeReady pc %s channel %s",this._pcReady,this._channelReady),!this.ready&&this._pcReady&&this._channelReady&&(i("ready"),this.ready=!0,this.emit("ready"))},n.prototype._onSignalingStateChange=function(){this.emit("signalingStateChange",this._pc.signalingState),i("signalingStateChange %s",this._pc.signalingState)},n.prototype._onIceCandidate=function(e){e.candidate&&this.trickle?this.emit("signal",{candidate:e.candidate}):e.candidate||(this._iceComplete=!0,this.emit("_iceComplete"))},n.prototype._onChannelMessage=function(e){if(!this.destroyed){var t=e.data;if(i("receive %s",t),t instanceof ArrayBuffer)t=d(new Uint8Array(t)),this.emit("message",t);else try{this.emit("message",JSON.parse(t))}catch(n){this.emit("message",t)}this._dataStreams.forEach(function(e){e.push(t)})}},n.prototype._onChannelOpen=function(){this._channelReady=!0,this._maybeReady()},n.prototype._onChannelClose=function(){this._channelReady=!1,this.destroy()},n.prototype._onAddStream=function(e){this.emit("stream",e.stream)},n.prototype._onError=function(e){i("error %s",e.message),this.destroy(e)},c(r,h.Duplex),r.prototype.destroy=function(){this._peer.destroy()},r.prototype._read=function(){},r.prototype._write=function(e,t,n){this._peer.send(e,n)}},{debug:44,events:16,"extend.js":51,hat:55,inherits:56,"is-typedarray":74,once:59,stream:31,"typedarray-to-buffer":75}],74:[function(e,t){function n(e){return r(e)||i(e)}function r(e){return e instanceof Int8Array||e instanceof Int16Array||e instanceof Int32Array||e instanceof Uint8Array||e instanceof Uint16Array||e instanceof Uint32Array||e instanceof Float32Array||e instanceof Float64Array}function i(e){return s[o.call(e)]}t.exports=n,n.strict=r,n.loose=i;var o=Object.prototype.toString,s={"[object Int8Array]":!0,"[object Int16Array]":!0,"[object Int32Array]":!0,"[object Uint8Array]":!0,"[object Uint16Array]":!0,"[object Uint32Array]":!0,"[object Float32Array]":!0,"[object Float64Array]":!0}},{}],75:[function(e,t){t.exports=e(39)},{"/Users/feross/code/webtorrent/node_modules/create-torrent/node_modules/filestream/node_modules/typedarray-to-buffer/index.js":39,buffer:12}],76:[function(e,t){function n(e,t){return this instanceof n?(r.call(this),t||(t={}),this._url=e,this._reconnect=void 0!==t.reconnect?t.reconnect:s,void this._init()):new n(e,t)}t.exports=n;var r=e("events").EventEmitter,i=e("inherits"),o=e("once"),s=5e3;i(n,r),n.prototype.send=function(e){this._ws&&this._ws.readyState===WebSocket.OPEN&&("object"==typeof e&&(e=JSON.stringify(e)),this._ws.send(e))},n.prototype.destroy=function(e){e&&this.once("close",e);try{this._ws.close()}catch(t){this._onclose()}},n.prototype._init=function(){this._errored=!1,this._ws=new WebSocket(this._url),this._ws.onopen=this._onopen.bind(this),this._ws.onmessage=this._onmessage.bind(this),this._ws.onclose=this._onclose.bind(this),this._ws.onerror=o(this._onerror.bind(this))},n.prototype._onopen=function(){this.emit("ready")},n.prototype._onerror=function(e){this._errored=!0,this.destroy(),this._reconnect?(this._timeout=setTimeout(this._init.bind(this),this._reconnect),this.emit("warning",e)):this.emit("error",e)},n.prototype._onmessage=function(e){var t=e.data;try{t=JSON.parse(e.data)}catch(n){}this.emit("message",t)},n.prototype._onclose=function(){clearTimeout(this._timeout),this._ws&&(this._ws.onopen=null,this._ws.onerror=null,this._ws.onmessage=null,this._ws.onclose=null),this._ws=null,this._errored||this.emit("close")}},{events:16,inherits:56,once:59}],77:[function(e,t){(function(n){var r=e("bencode"),i=e("bitfield"),o=e("events").EventEmitter,s=e("inherits"),a=e("git-sha1"),c=1e7,u=1e3,f=16384;t.exports=function(e){function t(t){o.call(this),this._wire=t,this._metadataComplete=!1,this._metadataSize=null,this._remainingRejects=null,this._fetching=!1,this._bitfield=new i(0,{grow:u}),n.isBuffer(e)&&this.setMetadata(e)}return s(t,o),t.prototype.name="ut_metadata",t.prototype.onHandshake=function(e){this._infoHash=e,this._infoHashHex=e.toString("hex")},t.prototype.onExtendedHandshake=function(e){return e.m&&e.m.ut_metadata?e.metadata_size?e.metadata_size>c?this.emit("warning",new Error("Peer gave maliciously large metadata size")):(this._metadataSize=e.metadata_size,this._numPieces=Math.ceil(this._metadataSize/f),this._remainingRejects=2*this._numPieces,void(this._fetching&&this._requestPieces())):this.emit("warning",new Error("Peer does not have metadata")):this.emit("warning",new Error("Peer does not support ut_metadata"))},t.prototype.onMessage=function(e){var t,n;try{var i=e.toString(),o=i.indexOf("ee")+2;t=r.decode(i.substring(0,o)),n=e.slice(o)}catch(s){return}switch(t.msg_type){case 0:this._onRequest(t.piece);break;case 1:this._onData(t.piece,n,t.total_size);break;case 2:this._onReject(t.piece)}},t.prototype.fetch=function(){this._metadataComplete||(this._fetching=!0,this._metadataSize&&this._requestPieces())},t.prototype.cancel=function(){this._fetching=!1},t.prototype.setMetadata=function(e){if(this._metadataComplete)return!0;try{var t=r.decode(e).info;t&&(e=r.encode(t))}catch(n){}return this._infoHashHex&&this._infoHashHex!==a(e)?!1:(this.cancel(),this.metadata=e,this._metadataComplete=!0,this._metadataSize=this.metadata.length,this._wire.extendedHandshake.metadata_size=this._metadataSize,this.emit("metadata",r.encode({info:r.decode(this.metadata)})),!0)},t.prototype._send=function(e,t){var i=r.encode(e);n.isBuffer(t)&&(i=n.concat([i,t])),this._wire.extended("ut_metadata",i)},t.prototype._request=function(e){this._send({msg_type:0,piece:e})},t.prototype._data=function(e,t,n){var r={msg_type:1,piece:e};"number"==typeof n&&(r.total_size=n),this._send(r,t)},t.prototype._reject=function(e){this._send({msg_type:2,piece:e})},t.prototype._onRequest=function(e){if(!this._metadataComplete)return void this._reject(e);var t=e*f,n=t+f;n>this._metadataSize&&(n=this._metadataSize);var r=this.metadata.slice(t,n);this._data(e,r,this._metadataSize)},t.prototype._onData=function(e,t){t.length>f||(t.copy(this.metadata,e*f),this._bitfield.set(e),this._checkDone())},t.prototype._onReject=function(e){this._remainingRejects>0&&this._fetching?(this._request(e),this._remainingRejects-=1):this.emit("warning",new Error('Peer sent "reject" too much'))},t.prototype._requestPieces=function(){this.metadata=new n(this._metadataSize);for(var e=0;e<this._numPieces;e++)this._request(e)},t.prototype._checkDone=function(){for(var e=!0,t=0;t<this._numPieces;t++)if(!this._bitfield.get(t)){e=!1;break}if(e){var n=this.setMetadata(this.metadata);n||this._failedMetadata()}},t.prototype._failedMetadata=function(){this._bitfield=new i(0,{grow:u}),this._remainingRejects-=this._numPieces,this._remainingRejects>0?this._requestPieces():this.emit("warning",new Error("Peer sent invalid metadata"))},t}}).call(this,e("buffer").Buffer)},{bencode:78,bitfield:7,buffer:12,events:16,"git-sha1":54,inherits:56}],78:[function(e,t){t.exports=e(36)},{"./lib/decode":79,"./lib/encode":80,"/Users/feross/code/webtorrent/node_modules/create-torrent/node_modules/bencode/bencode.js":36}],79:[function(e,t){t.exports=e(37)},{"/Users/feross/code/webtorrent/node_modules/create-torrent/node_modules/bencode/lib/decode.js":37,buffer:12}],80:[function(e,t){t.exports=e(38)},{"/Users/feross/code/webtorrent/node_modules/create-torrent/node_modules/bencode/lib/encode.js":38,buffer:12}],81:[function(e,t){(function(n){function r(e,t,n){this.swarm=e,this.stream=t,this.id=n;var r=this.wire=new f;this.timeout=null,this.handshaked=!1,this.paused=!0;var i=c(function(){this.handshaked&&this.swarm.wires.splice(this.swarm.wires.indexOf(this.wire),1),this.destroy(),this.swarm._drain(),this.swarm._peers[this.id]=null}.bind(this));t.once("end",i),t.once("error",i),t.once("close",i),t.once("finish",i),r.once("end",i),r.once("close",i),r.once("error",i),r.once("finish",i),r.on("handshake",this._onHandshake.bind(this)),t.pipe(r).pipe(t)}function i(e,t,r){return this instanceof i?(s.call(this),r||(r={}),this.infoHash="string"==typeof e?new n(e,"hex"):e,this.infoHashHex=this.infoHash.toString("hex"),this.peerId="string"==typeof t?new n(t,"utf8"):t,this.peerIdHex=this.peerId.toString("hex"),o("new swarm i %s p %s",this.infoHashHex,this.peerIdHex),this.handshake=r.handshake,this.maxPeers=r.maxPeers||h,this.downloaded=0,this.uploaded=0,this.downloadSpeed=u(),this.uploadSpeed=u(),this.wires=[],this._queue=[],this._peers={},this.paused=!1,void(this.destroyed=!1)):new i(e,t,r)}t.exports=i;var o=e("debug")("webtorrent-swarm"),s=e("events").EventEmitter,a=e("inherits"),c=e("once"),u=e("speedometer"),f=e("bittorrent-protocol"),h=30,d=25e3;r.prototype.destroy=function(){o("peer destroy"),this.stream&&this.stream.destroy(),this.wire&&this.wire.destroy(),this.timeout&&clearTimeout(this.timeout),this.stream=null,this.wire=null,this.timeout=null},r.prototype.handshake=function(){this.paused=!1,this.wire.handshake(this.swarm.infoHash,this.swarm.peerId,this.swarm.handshake),o("sent handshake i %s p %s",this.swarm.infoHashHex,this.swarm.peerIdHex),this.handshaked||(this.timeout=setTimeout(function(){this.destroy()}.bind(this),d))},r.prototype._onHandshake=function(e){var t=e.toString("hex");return o("got handshake %s",t),this.swarm.destroyed||t!==this.swarm.infoHashHex?this.destroy():(this.handshaked=!0,clearTimeout(this.timeout),this.wire.on("download",function(e){this.swarm.downloaded+=e,this.swarm.downloadSpeed(e),this.swarm.emit("download",e)}.bind(this)),this.wire.on("upload",function(e){this.swarm.uploaded+=e,this.swarm.uploadSpeed(e),this.swarm.emit("upload",e)}.bind(this)),this.swarm.wires.push(this.wire),void this.swarm.emit("wire",this.wire))},a(i,s),Object.defineProperty(i.prototype,"ratio",{get:function(){return 0===this.downloaded?0:this.uploaded/this.downloaded}}),Object.defineProperty(i.prototype,"numQueued",{get:function(){return this._queue.length}}),Object.defineProperty(i.prototype,"numPeers",{get:function(){return this.wires.length}}),i.prototype.addPeer=function(e){if(!this.destroyed&&!this._peers[e.id]){var t=e.getDataStream(),n=new r(this,t,e.id);this._peers[e.id]=n,this._queue.push(n),this._drain()}},i.prototype.pause=function(){o("pause"),this.paused=!0},i.prototype.resume=function(){o("resume"),this.paused=!1,this._drain()},i.prototype.removePeer=function(e){o("removePeer %s",e),this._removePeer(e),this._drain()},i.prototype._removePeer=function(e){o("_removePeer %s",e),e.destroy()},i.prototype.destroy=function(e){if(!this.destroyed){this.destroyed=!0,e&&this.once("close",e),o("destroy");
  for(var t in this._peers)this._removePeer(t);this.emit("close")}},i.prototype._drain=function(){if(!(this.paused||this.destroyed||this.numPeers>=this.maxPeers)){o("drain %s queued %s peers %s max",this.numQueued,this.numPeers,this.maxPeers);var e=this._queue.shift();e&&e.handshake()}}}).call(this,e("buffer").Buffer)},{"bittorrent-protocol":82,buffer:12,debug:44,events:16,inherits:56,once:59,speedometer:70}],82:[function(e,t){(function(n){function r(e,t,n,r){this.piece=e,this.offset=t,this.length=n,this.callback=r}function i(){return this instanceof i?(l.Duplex.call(this),u("new wire"),this.amChoking=!0,this.amInterested=!1,this.peerChoking=!0,this.peerInterested=!1,this.peerPieces=new a(0,{grow:p}),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=d(),this.downloadSpeed=d(),this._keepAlive=null,this._timeout=null,this._timeoutMs=0,this.destroyed=!1,this._finished=!1,this._buffer=[],this._bufferSize=0,this._parser=null,this._parserSize=0,this.on("finish",this._onfinish),void this._parseHandshake()):new i}function o(e,t,n,r){for(var i=0;i<e.length;i++){var o=e[i];if(o.piece===t&&o.offset===n&&o.length===r)return 0===i?e.shift():e.splice(i,1),o}return null}function s(e){try{return c.decode(e)}catch(t){console.warn(t)}}t.exports=i;var a=e("bitfield"),c=e("bencode"),u=e("debug")("bittorrent-protocol"),f=e("extend.js"),h=e("inherits"),d=e("speedometer"),l=e("stream"),p=4e5,g=new n("BitTorrent protocol"),m=new n([0,0,0,0]),_=new n([0,0,0,1,0]),v=new n([0,0,0,1,1]),y=new n([0,0,0,1,2]),b=new n([0,0,0,1,3]),w=[0,0,0,0,0,0,0,0],k=[0,0,0,3,9,0,0];h(i,l.Duplex),i.prototype.setKeepAlive=function(e){clearInterval(this._keepAlive),e!==!1&&(this._keepAlive=setInterval(this._push.bind(this,m),6e4))},i.prototype.setTimeout=function(e){this._clearTimeout(),this._timeoutMs=e,this._updateTimeout()},i.prototype.destroy=function(){this.destroyed=!0,this.end()},i.prototype.end=function(){this._onUninterested(),this._onChoke(),l.Duplex.prototype.end.apply(this,arguments)},i.prototype.use=function(e){function t(){}var n=e.name||e.prototype.name;if(!n)throw new Error("Extension API requires a named function, e.g. function name() {}");var r=this._nextExt,i=new e(this);"function"!=typeof i.onHandshake&&(i.onHandshake=t),"function"!=typeof i.onExtendedHandshake&&(i.onExtendedHandshake=t),"function"!=typeof i.onMessage&&(i.onMessage=t),this.extendedMapping[r]=n,this._ext[n]=i,this[n]=i,this._nextExt+=1},i.prototype.handshake=function(e,t,r){if("string"==typeof e&&(e=new n(e,"hex")),"string"==typeof t&&(t=new n(t,"hex")),20!==e.length||20!==t.length)throw new Error("infoHash and peerId MUST have length 20");var i=new n(w);i[5]|=16,r&&r.dht&&(i[7]|=1),this._push(n.concat([g,i,e,t]))},i.prototype.choke=function(){if(!this.amChoking){for(this.amChoking=!0;this.peerRequests.length;)this.peerRequests.pop();this._push(_)}},i.prototype.unchoke=function(){this.amChoking&&(this.amChoking=!1,this._push(v))},i.prototype.interested=function(){this.amInterested||(this.amInterested=!0,this._push(y))},i.prototype.uninterested=function(){this.amInterested&&(this.amInterested=!1,this._push(b))},i.prototype.have=function(e){this._message(4,[e],null)},i.prototype.bitfield=function(e){n.isBuffer(e)||(e=e.buffer),this._message(5,[],e)},i.prototype.request=function(e,t,n,i){return i||(i=function(){}),this._finished?i(new Error("wire is closed")):this.peerChoking?i(new Error("peer is choking")):(this.requests.push(new r(e,t,n,i)),this._updateTimeout(),void this._message(6,[e,t,n],null))},i.prototype.piece=function(e,t,n){this.uploaded+=n.length,this.uploadSpeed(n.length),this.emit("upload",n.length),this._message(7,[e,t],n)},i.prototype.cancel=function(e,t,n){this._callback(o(this.requests,e,t,n),new Error("request was cancelled"),null),this._message(8,[e,t,n],null)},i.prototype.port=function(e){var t=new n(k);t.writeUInt16BE(e,5),this._push(t)},i.prototype.extended=function(e,t){if("string"==typeof e&&this.peerExtendedMapping[e]&&(e=this.peerExtendedMapping[e]),"number"==typeof e){var r=new n([e]),i=n.isBuffer(t)?t:c.encode(t);this._message(20,[],n.concat([r,i]))}else console.warn("Skipping extension",e)},i.prototype._onKeepAlive=function(){this.emit("keep-alive")},i.prototype._onHandshake=function(e,t,n){this.peerId=t,this.peerExtensions=n,this.emit("handshake",e,t,n);var r;for(r in this._ext)this._ext[r].onHandshake(e,t,n);if(n.extended){var i=f({},this.extendedHandshake);i.m={};for(var o in this.extendedMapping)r=this.extendedMapping[o],i.m[r]=Number(o);this.extended(0,c.encode(i))}},i.prototype._onChoke=function(){for(this.peerChoking=!0,this.emit("choke");this.requests.length;)this._callback(this.requests.shift(),new Error("peer is choking"),null)},i.prototype._onUnchoke=function(){this.peerChoking=!1,this.emit("unchoke")},i.prototype._onInterested=function(){this.peerInterested=!0,this.emit("interested")},i.prototype._onUninterested=function(){this.peerInterested=!1,this.emit("uninterested")},i.prototype._onHave=function(e){this.peerPieces.get(e)||(this.peerPieces.set(e,!0),this.emit("have",e))},i.prototype._onBitField=function(e){this.peerPieces=new a(e),this.emit("bitfield",this.peerPieces)},i.prototype._onRequest=function(e,t,n){if(!this.amChoking){var i=function(r,i){s===o(this.peerRequests,e,t,n)&&(r||this.piece(e,t,i))}.bind(this),s=new r(e,t,n,i);this.peerRequests.push(s),this.emit("request",e,t,n,i)}},i.prototype._onPiece=function(e,t,n){this._callback(o(this.requests,e,t,n.length),null,n),this.downloaded+=n.length,this.downloadSpeed(n.length),this.emit("download",n.length),this.emit("piece",e,t,n)},i.prototype._onCancel=function(e,t,n){o(this.peerRequests,e,t,n),this.emit("cancel",e,t,n)},i.prototype._onPort=function(e){this.emit("port",e)},i.prototype._onExtended=function(e,t){var n,r;if(0===e&&(n=s(t))){if(this.peerExtendedHandshake=n,"object"==typeof n.m)for(r in n.m)this.peerExtendedMapping[r]=Number(n.m[r].toString());for(r in this._ext)this.peerExtendedMapping[r]&&this._ext[r].onExtendedHandshake(this.peerExtendedHandshake);this.emit("extended","handshake",this.peerExtendedHandshake)}else this.extendedMapping[e]&&(e=this.extendedMapping[e],this._ext[e]&&this._ext[e].onMessage(t)),this.emit("extended",e,t)},i.prototype._onTimeout=function(){this._callback(this.requests.shift(),new Error("request has timed out"),null),this.emit("timeout")},i.prototype._push=function(e){return this._finished?void 0:this.push(e)},i.prototype._write=function(e,t,r){for(this._bufferSize+=e.length,this._buffer.push(e);this._bufferSize>=this._parserSize;){var i=1===this._buffer.length?this._buffer[0]:n.concat(this._buffer);this._bufferSize-=this._parserSize,this._buffer=this._bufferSize?[i.slice(this._parserSize)]:[],this._parser(i.slice(0,this._parserSize))}r(null)},i.prototype._read=function(){},i.prototype._callback=function(e,t,n){e&&(this._clearTimeout(),this.peerChoking||this._finished||this._updateTimeout(),e.callback(t,n))},i.prototype._clearTimeout=function(){this._timeout&&(clearTimeout(this._timeout),this._timeout=null)},i.prototype._updateTimeout=function(){this._timeoutMs&&this.requests.length&&!this._timeout&&(this._timeout=setTimeout(this._onTimeout.bind(this),this._timeoutMs))},i.prototype._parse=function(e,t){this._parserSize=e,this._parser=t},i.prototype._message=function(e,t,r){var i=r?r.length:0,o=new n(5+4*t.length);o.writeUInt32BE(o.length+i-4,0),o[4]=e;for(var s=0;s<t.length;s++)o.writeUInt32BE(t[s],5+4*s);this._push(o),r&&this._push(r)},i.prototype._onmessagelength=function(e){var t=e.readUInt32BE(0);t>0?this._parse(t,this._onmessage):(this._onKeepAlive(),this._parse(4,this._onmessagelength))},i.prototype._onmessage=function(e){switch(this._parse(4,this._onmessagelength),e[0]){case 0:return this._onChoke();case 1:return this._onUnchoke();case 2:return this._onInterested();case 3:return this._onUninterested();case 4:return this._onHave(e.readUInt32BE(1));case 5:return this._onBitField(e.slice(1));case 6:return this._onRequest(e.readUInt32BE(1),e.readUInt32BE(5),e.readUInt32BE(9));case 7:return this._onPiece(e.readUInt32BE(1),e.readUInt32BE(5),e.slice(9));case 8:return this._onCancel(e.readUInt32BE(1),e.readUInt32BE(5),e.readUInt32BE(9));case 9:return this._onPort(e.readUInt16BE(1));case 20:return this._onExtended(e.readUInt8(1),e.slice(2))}this.emit("unknownmessage",e)},i.prototype._parseHandshake=function(){this._parse(1,function(e){var t=e.readUInt8(0);this._parse(t+48,function(e){var n=e.slice(0,t);return"BitTorrent protocol"!==n.toString()?(u("Error: wire not speaking BitTorrent protocol (%s)",n.toString()),void this.end()):(e=e.slice(t),this._onHandshake(e.slice(8,28),e.slice(28,48),{dht:!!(1&e[7]),extended:!!(16&e[5])}),void this._parse(4,this._onmessagelength))}.bind(this))}.bind(this))},i.prototype._onfinish=function(){for(this._finished=!0,this.push(null);this.read(););for(clearInterval(this._keepAlive),this._parse(Number.MAX_VALUE,function(){}),this.peerRequests=[];this.requests.length;)this._callback(this.requests.shift(),new Error("wire was closed"),null)}}).call(this,e("buffer").Buffer)},{bencode:83,bitfield:7,buffer:12,debug:44,"extend.js":51,inherits:56,speedometer:70,stream:31}],83:[function(e,t){t.exports=e(36)},{"./lib/decode":84,"./lib/encode":85,"/Users/feross/code/webtorrent/node_modules/create-torrent/node_modules/bencode/bencode.js":36}],84:[function(e,t){t.exports=e(37)},{"/Users/feross/code/webtorrent/node_modules/create-torrent/node_modules/bencode/lib/decode.js":37,buffer:12}],85:[function(e,t){t.exports=e(38)},{"/Users/feross/code/webtorrent/node_modules/create-torrent/node_modules/bencode/lib/encode.js":38,buffer:12}],86:[function(e,t){(function(n,r){function i(e){function t(){o.ready=!0,o.emit("ready")}var o=this;return o instanceof i?(e||(e={}),u.call(o),o.torrentPort=e.torrentPort||0,o.tracker=void 0!==e.tracker?e.tracker:!0,o.torrents=[],o.downloadSpeed=v(),o.uploadSpeed=v(),o.storage="function"==typeof e.storage?e.storage:e.storage!==!1&&"function"==typeof d?d:y,o.peerId=void 0===e.peerId?new r("-WW0001-"+l(48),"utf8"):"string"==typeof e.peerId?new r(e.peerId,"utf8"):e.peerId,o.peerIdHex=o.peerId.toString("hex"),o.nodeId=void 0===e.nodeId?new r(l(160),"hex"):"string"==typeof e.nodeId?new r(e.nodeId,"hex"):e.nodeId,o.nodeIdHex=o.nodeId.toString("hex"),e.dht!==!1&&"function"==typeof c&&(o.dht=new c(f({nodeId:o.nodeId},e.dht)),o.dht.listen(e.dhtPort)),a("new webtorrent (peerId %s, nodeId %s)",o.peerIdHex,o.nodeIdHex),void("function"==typeof g?g(e.blocklist,function(e,n){o.blocked=n,t()}):n.nextTick(t))):new i(e)}function o(e){return"undefined"!=typeof Blob&&e instanceof Blob}t.exports=i;var s=e("create-torrent"),a=e("debug")("webtorrent"),c=e("bittorrent-dht/client"),u=e("events").EventEmitter,f=e("extend.js"),h=e("filestream/read"),d=e("./lib/fs-storage"),l=e("hat"),p=e("inherits"),g=e("load-ip-set"),m=e("run-parallel"),_=e("parse-torrent"),v=e("speedometer"),y=e("./lib/storage"),b=e("stream"),w=e("./lib/torrent");p(i,u),Object.defineProperty(i.prototype,"ratio",{get:function(){var e=this,t=e.torrents.reduce(function(e,t){return e+t.uploaded},0),n=e.torrents.reduce(function(e,t){return e+t.downloaded},0)||1;return t/n}}),i.prototype.get=function(e){var t=this,n=_(e);if(!n||!n.infoHash)return null;for(var r=0,i=t.torrents.length;i>r;r++){var o=t.torrents[r];if(o.infoHash===n.infoHash)return o}return null},i.prototype.add=i.prototype.download=function(e,t,n){function r(e){o.infoHash===e.infoHash&&(n(o),i.removeListener("torrent",r))}var i=this;a("add %s",e),"function"==typeof t&&(n=t,t={}),t||(t={}),t.client=i,t.storage=t.storage||i.storage;var o=new w(e,f({client:i},t));return i.torrents.push(o),n&&i.on("torrent",r),o.on("error",function(e){i.emit("error",e,o)}),o.on("listening",function(e){i.emit("listening",e,o)}),o.on("ready",function(){a("torrent"),i.emit("torrent",o)}),o},i.prototype.seed=function(e,t,n){function i(e){c.infoHash===e.infoHash&&(n(c),a.removeListener("seed",i))}var a=this;"function"==typeof t&&(n=t,t={}),"undefined"!=typeof FileList&&e instanceof FileList&&(e=Array.prototype.slice.call(e)),(o(e)||r.isBuffer(e))&&(e=[e]);var c,u=e.map(function(e){if(o(e))return new h(e);if(r.isBuffer(e)){var t=new b.PassThrough;return t.end(e),t}throw new Error("unsupported input type to `seed`")});s(e,t,function(e,n){return e?a.emit("error",e):void a.add(n,t,function(e){c=e,c.storage.load(u,function(e){return e?a.emit("error",e):void a.emit("seed",c)})})}),n&&a.on("seed",i)},i.prototype.remove=function(e,t){var n=this,r=n.get(e);if(!r)throw new Error("No torrent with id "+e);a("remove"),n.torrents.splice(n.torrents.indexOf(r),1),r.destroy(t)},i.prototype.destroy=function(e){var t=this;a("destroy");var n=t.torrents.map(function(e){return function(n){t.remove(e.infoHash,n)}});t.dht&&n.push(function(e){t.dht.destroy(e)}),m(n,e)}}).call(this,e("_process"),e("buffer").Buffer)},{"./lib/fs-storage":11,"./lib/storage":3,"./lib/torrent":4,_process:19,"bittorrent-dht/client":11,buffer:12,"create-torrent":35,debug:44,events:16,"extend.js":51,"filestream/read":53,hat:55,inherits:56,"load-ip-set":11,"parse-torrent":60,"run-parallel":69,speedometer:70,stream:31}]},{},[86])(86)});