webtorrent/dist/webtorrent.min.js

Streaming torrent client

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a.A(this.type,this.retries,f);t.once("end",(()=>{this.destroy()})),t.once("close",(()=>{this.destroy()})),t.once("finish",(()=>{this.destroy()})),t.once("error",(e=>{this.destroy(e)})),t.once("pe1",(()=>{this.onPe1()})),t.once("pe2",(()=>{this.onPe2()})),t.once("pe3",(()=>{this.onPe3()})),t.once("pe4",(()=>{this.onPe4()})),t.once("handshake",((e,t)=>{this.onHandshake(e,t)})),this.startHandshakeTimeout(),this.setThrottlePipes(),this.swarm&&("tcpOutgoing"===this.type?f&&0===this.retries&&!this.sentPe1?this.sendPe1():this.sentHandshake||this.handshake():"tcpIncoming"===this.type||this.sentHandshake||this.handshake())}sendPe1(){this.wire.sendPe1(),this.sentPe1=!0}onPe1(){this.sendPe2()}sendPe2(){this.wire.sendPe2(),this.sentPe2=!0}onPe2(){this.sendPe3()}sendPe3(){this.wire.sendPe3(this.swarm.infoHash),this.sentPe3=!0}onPe3(e){this.swarm&&(this.swarm.infoHashHash!==e&&this.destroy(new Error("unexpected crypto handshake info hash for this 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s=this.addr;!s&&this.conn.remoteAddress&&this.conn.remotePort&&(s=`${this.conn.remoteAddress}:${this.conn.remotePort}`),this.swarm._onWire(this.wire,s),this.swarm&&!this.swarm.destroyed&&(this.sentHandshake||this.handshake())}handshake(){const e={dht:!this.swarm.private&&!!this.swarm.client.dht,fast:!0};this.wire.handshake(this.swarm.infoHash,this.swarm.client.peerId,e),this.sentHandshake=!0}startConnectTimeout(){clearTimeout(this.connectTimeout);const e={webrtc:25e3,tcpOutgoing:5e3,utpOutgoing:5e3};this.connectTimeout=setTimeout((()=>{this.destroy(new Error("connect timeout"))}),e[this.type]),this.connectTimeout.unref&&this.connectTimeout.unref()}startHandshakeTimeout(){clearTimeout(this.handshakeTimeout),this.handshakeTimeout=setTimeout((()=>{this.destroy(new Error("handshake timeout"))}),25e3),this.handshakeTimeout.unref&&this.handshakeTimeout.unref()}destroy(e){if(this.destroyed)return;this.destroyed=!0,this.connected=!1,p("destroy %s %s (error: %s)",this.type,this.id,e&&(e.message||e)),clearTimeout(this.connectTimeout),clearTimeout(this.handshakeTimeout);const t=this.swarm,s=this.conn,i=this.wire;this.swarm=null,this.conn=null,this.wire=null,t&&i&&r(t.wires,t.wires.indexOf(i)),s&&(s.on("error",(()=>{})),s.destroy()),i&&i.destroy(),t&&t.removePeer(this.id)}}_.TYPE_TCP_INCOMING=h,_.TYPE_TCP_OUTGOING=l,_.TYPE_UTP_INCOMING=c,_.TYPE_UTP_OUTGOING=d,_.TYPE_WEBRTC="webrtc",_.TYPE_WEBSEED=u,_.SOURCE_MANUAL="manual",_.SOURCE_TRACKER="tracker",_.SOURCE_DHT="dht",_.SOURCE_LSD="lsd",_.SOURCE_UT_PEX="ut_pex",_.createWebRTCPeer=(e,t,s,i=null)=>{const n=new _(e.id,"webrtc");if(n.conn=e,n.swarm=t,n.throttleGroups=s,n.source=i,n.conn.connected)n.onConnect();else{const e=()=>{n.conn.removeListener("connect",t),n.conn.removeListener("error",s)},t=()=>{e(),n.onConnect()},s=t=>{e(),n.destroy(t)};n.conn.once("connect",t),n.conn.once("error",s),n.startConnectTimeout()}return n},_.createTCPIncomingPeer=(e,t)=>_._createIncomingPeer(e,h,t),_.createUTPIncomingPeer=(e,t)=>_._createIncomingPeer(e,c,t),_.createTCPOutgoingPeer=(e,t,s,i)=>_._createOutgoingPeer(e,t,l,s,i),_.createUTPOutgoingPeer=(e,t,s,i)=>_._createOutgoingPeer(e,t,d,s,i),_._createIncomingPeer=(e,t,s)=>{const i=`${e.remoteAddress}:${e.remotePort}`,n=new _(i,t);return n.conn=e,n.addr=i,n.throttleGroups=s,n.onConnect(),n},_._createOutgoingPeer=(e,t,s,i,n=null)=>{const r=new _(e,s);return r.addr=e,r.swarm=t,r.throttleGroups=i,r.source=n,r},_.createWebSeedPeer=(e,t,s,i)=>{const n=new _(t,u);return n.swarm=s,n.conn=e,n.throttleGroups=i,n.onConnect(),n}},5809:e=>{e.exports=class{constructor(e){if(!(e>0)||e-1&e)throw new Error("Max size for a FixedFIFO should be a power of two");this.buffer=new Array(e),this.mask=e-1,this.top=0,this.btm=0,this.next=null}clear(){this.top=this.btm=0,this.next=null,this.buffer.fill(void 0)}push(e){return void 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P{constructor(e,t,s,i){this.piece=e,this.offset=t,this.length=s,this.callback=i}}class A{constructor(){this.buffer=new Uint8Array}get(e){return!0}set(e){}}class T extends h.Duplex{constructor(e=null,t=0,s=!1){super(),this._debugId=(0,l.V5)((0,l.po)(4)),this._debug("new wire"),this.peerId=null,this.peerIdBuffer=null,this.type=e,this.amChoking=!0,this.amInterested=!1,this.peerChoking=!0,this.peerInterested=!1,this.peerPieces=new n.A(0,{grow:4e5}),this.extensions={},this.peerExtensions={},this.requests=[],this.peerRequests=[],this.extendedMapping={},this.peerExtendedMapping={},this.extendedHandshake={},this.peerExtendedHandshake={},this.hasFast=!1,this.allowedFastSet=[],this.peerAllowedFastSet=[],this._ext={},this._nextExt=1,this.uploaded=0,this.downloaded=0,this.uploadSpeed=c(),this.downloadSpeed=c(),this._keepAliveInterval=null,this._timeout=null,this._timeoutMs=0,this._timeoutExpiresAt=null,this._finished=!1,this._parserSize=0,this._parser=null,this._buffer=[],this._bufferSize=0,this._peEnabled=s,s?(this._dh=r.createDiffieHellman("ffffffffffffffffc90fdaa22168c234c4c6628b80dc1cd129024e088a67cc74020bbea63b139b22514a08798e3404ddef9519b3cd3a431b302b0a6df25f14374fe1356d6d51c245e485b576625e7ec6f44c42e9a63a36210000000000090563","hex",2),this._myPubKey=this._dh.generateKeys("hex")):this._myPubKey=null,this._peerPubKey=null,this._sharedSecret=null,this._peerCryptoProvide=[],this._cryptoHandshakeDone=!1,this._cryptoSyncPattern=null,this._waitMaxBytes=null,this._encryptionMethod=null,this._encryptGenerator=null,this._decryptGenerator=null,this._setGenerators=!1,this.once("finish",(()=>this._onFinish())),this.on("finish",this._onFinish),this._debug("type:",this.type),"tcpIncoming"===this.type&&this._peEnabled?this._determineHandshakeType():"tcpOutgoing"===this.type&&this._peEnabled&&0===t?this._parsePe2():this._parseHandshake(null)}setKeepAlive(e){this._debug("setKeepAlive %s",e),clearInterval(this._keepAliveInterval),!1!==e&&(this._keepAliveInterval=setInterval((()=>{this.keepAlive()}),55e3))}setTimeout(e,t){this._debug("setTimeout ms=%d unref=%s",e,t),this._timeoutMs=e,this._timeoutUnref=!!t,this._resetTimeout(!0)}destroy(){if(!this.destroyed)return this._debug("destroy"),this.end(),this}end(e){if(!this.destroyed&&!this.destroying)return this._debug("end"),this._onUninterested(),this._onChoke(),super.end(e)}use(e){const t=e.prototype.name;if(!t)throw new Error('Extension class requires a "name" property on the prototype');this._debug("use extension.name=%s",t);const s=this._nextExt,i=new e(this);function n(){}"function"!=typeof i.onHandshake&&(i.onHandshake=n),"function"!=typeof i.onExtendedHandshake&&(i.onExtendedHandshake=n),"function"!=typeof i.onMessage&&(i.onMessage=n),this.extendedMapping[s]=t,this._ext[t]=i,this[t]=i,this._nextExt+=1}keepAlive(){this._debug("keep-alive"),this._push(f)}sendPe1(){if(this._peEnabled){const e=Math.floor(513*Math.random()),t=(0,l.po)(e);this._push((0,l.xW)([(0,l.fk)(this._myPubKey),t]))}}sendPe2(){const e=Math.floor(513*Math.random()),t=(0,l.po)(e);this._push((0,l.xW)([(0,l.fk)(this._myPubKey),t]))}async sendPe3(e){await this.setEncrypt(this._sharedSecret,e);const t=await(0,l.tW)((0,l.fk)(this._utfToHex("req1")+this._sharedSecret)),s=C(await(0,l.tW)((0,l.fk)(this._utfToHex("req2")+e)),await(0,l.tW)((0,l.fk)(this._utfToHex("req3")+this._sharedSecret))),i=new DataView((0,l.po)(2).buffer).getUint16(0)%512,n=(0,l.po)(i);let r=new Uint8Array(14+i+2);r.set(x),r.set(S,8);const o=new DataView(r.buffer);o.setInt16(12,i),n.copy(r,14),o.setInt16(14+i,0),r=this._encryptHandshake(r),this._push((0,l.xW)([t,s,r]))}async sendPe4(e){await this.setEncrypt(this._sharedSecret,e);const t=new DataView((0,l.po)(2).buffer).getUint16(0)%512,s=(0,l.po)(t);let i=new Uint8Array(14+t);const n=new DataView(i.buffer);i.set(x),i.set(E,8),n.setInt16(12,t),i.set(s,14),i=this._encryptHandshake(i),this._push(i),this._cryptoHandshakeDone=!0,this._debug("completed crypto handshake")}handshake(e,t,s){let i,n;if("string"==typeof e?(e=e.toLowerCase(),i=(0,l.fk)(e)):(i=e,e=(0,l.V5)(i)),"string"==typeof t?n=(0,l.fk)(t):(n=t,t=(0,l.V5)(n)),this._infoHash=i,20!==i.length||20!==n.length)throw new Error("infoHash and peerId MUST have length 20");this._debug("handshake i=%s p=%s exts=%o",e,t,s);const r=new Uint8Array(w);this.extensions={extended:!0,dht:!(!s||!s.dht),fast:!(!s||!s.fast)},r[5]|=16,this.extensions.dht&&(r[7]|=1),this.extensions.fast&&(r[7]|=4),this.extensions.fast&&this.peerExtensions.fast&&(this._debug("fast extension is enabled"),this.hasFast=!0),this._push((0,l.xW)([p,r,i,n])),this._handshakeSent=!0,this.peerExtensions.extended&&!this._extendedHandshakeSent&&this._sendExtendedHandshake()}_sendExtendedHandshake(){const e=Object.assign({},this.extendedHandshake);e.m={};for(const t in this.extendedMapping){const s=this.extendedMapping[t];e.m[s]=Number(t)}this.extended(0,i.A.encode(e)),this._extendedHandshakeSent=!0}choke(){if(!this.amChoking)if(this.amChoking=!0,this._debug("choke"),this._push(m),this.hasFast){let e=0;for(;this.peerRequests.length>e;){const t=this.peerRequests[e];this.allowedFastSet.includes(t.piece)?++e:this.reject(t.piece,t.offset,t.length)}}else for(;this.peerRequests.length;)this.peerRequests.pop()}unchoke(){this.amChoking&&(this.amChoking=!1,this._debug("unchoke"),this._push(_))}interested(){this.amInterested||(this.amInterested=!0,this._debug("interested"),this._push(g))}uninterested(){this.amInterested&&(this.amInterested=!1,this._debug("uninterested"),this._push(y))}have(e){this._debug("have %d",e),this._message(4,[e],null)}bitfield(e){this._debug("bitfield"),ArrayBuffer.isView(e)||(e=e.buffer),this._message(5,[],e)}request(e,t,s,i){return i||(i=()=>{}),this._finished?i(new Error("wire is closed")):!this.peerChoking||this.hasFast&&this.peerAllowedFastSet.includes(e)?(this._debug("request index=%d offset=%d length=%d",e,t,s),this.requests.push(new P(e,t,s,i)),this._timeout||this._resetTimeout(!0),void this._message(6,[e,t,s],null)):i(new Error("peer is choking"))}piece(e,t,s){this._debug("piece index=%d offset=%d",e,t),this._message(7,[e,t],s),this.uploaded+=s.length,this.uploadSpeed(s.length),this.emit("upload",s.length)}cancel(e,t,s){this._debug("cancel index=%d offset=%d length=%d",e,t,s),this._callback(this._pull(this.requests,e,t,s),new Error("request was cancelled"),null),this._message(8,[e,t,s],null)}port(e){this._debug("port %d",e);const t=new Uint8Array(b);new DataView(t.buffer).setUint16(5,e),this._push(t)}suggest(e){if(!this.hasFast)throw Error("fast extension is disabled");this._debug("suggest %d",e),this._message(13,[e],null)}haveAll(){if(!this.hasFast)throw Error("fast extension is disabled");this._debug("have-all"),this._push(v)}haveNone(){if(!this.hasFast)throw Error("fast extension is disabled");this._debug("have-none"),this._push(k)}reject(e,t,s){if(!this.hasFast)throw Error("fast extension is disabled");this._debug("reject index=%d offset=%d length=%d",e,t,s),this._pull(this.peerRequests,e,t,s),this._message(16,[e,t,s],null)}allowedFast(e){if(!this.hasFast)throw Error("fast extension is disabled");this._debug("allowed-fast %d",e),this.allowedFastSet.includes(e)||this.allowedFastSet.push(e),this._message(17,[e],null)}extended(e,t){if(this._debug("extended ext=%s",e),"string"==typeof e&&this.peerExtendedMapping[e]&&(e=this.peerExtendedMapping[e]),"number"!=typeof e)throw new Error(`Unrecognized extension: ${e}`);{const s=new Uint8Array([e]),n=ArrayBuffer.isView(t)?t:i.A.encode(t);this._message(20,[],(0,l.xW)([s,n]))}}async setEncrypt(e,t){let s,i,n,r;switch(this.type){case"tcpIncoming":s=await(0,l.tW)((0,l.fk)(this._utfToHex("keyB")+e+t)),n=await(0,l.tW)((0,l.fk)(this._utfToHex("keyA")+e+t)),i=[];for(const e of s.values())i.push(e);r=[];for(const e of n.values())r.push(e);this._encryptGenerator=new a(i),this._decryptGenerator=new a(r);break;case"tcpOutgoing":s=await(0,l.tW)((0,l.fk)(this._utfToHex("keyA")+e+t)),n=await(0,l.tW)((0,l.fk)(this._utfToHex("keyB")+e+t)),i=[];for(const e of s.values())i.push(e);r=[];for(const e of n.values())r.push(e);this._encryptGenerator=new a(i),this._decryptGenerator=new a(r);break;default:return!1}for(let e=0;e<1024;e++)this._encryptGenerator.randomByte(),this._decryptGenerator.randomByte();return this._setGenerators=!0,!0}_message(e,t,s){const i=s?s.length:0,n=new Uint8Array(5+4*t.length),r=new DataView(n.buffer);r.setUint32(0,n.length+i-4),n[4]=e;for(let e=0;e<t.length;e++)r.setUint32(5+4*e,t[e]);this._push(n),s&&this._push(s)}_push(e){if(!this._finished)return 2===this._encryptionMethod&&this._cryptoHandshakeDone&&(e=this._encrypt(e)),this.push(e)}_onKeepAlive(){this._debug("got keep-alive"),this.emit("keep-alive")}_onPe1(e){this._peerPubKey=(0,l.V5)(e),this._sharedSecret=this._dh.computeSecret(this._peerPubKey,"hex","hex"),this.emit("pe1")}_onPe2(e){this._peerPubKey=(0,l.V5)(e),this._sharedSecret=this._dh.computeSecret(this._peerPubKey,"hex","hex"),this.emit("pe2")}async _onPe3(e){const t=await(0,l.V5)(this._utfToHex("req3")+this._sharedSecret),s=(0,l.V5)(C(t,e));this.emit("pe3",s)}_onPe3Encrypted(e,t){if(!(0,l.LC)(e,x))return this._debug("Error: verification constant did not match"),void this.destroy();for(const e of t.values())0!==e&&this._peerCryptoProvide.push(e);this._peerCryptoProvide.includes(2)?this._encryptionMethod=2:(this._debug("Error: RC4 encryption method not provided by peer"),this.destroy())}_onPe4(e){this._encryptionMethod=e[3],S.includes(this._encryptionMethod)||(this._debug("Error: peer selected invalid crypto method"),this.destroy()),this._cryptoHandshakeDone=!0,this._debug("crypto handshake done"),this.emit("pe4")}_onHandshake(e,t,s){const i=(0,l.V5)(e),n=(0,l.V5)(t);this._debug("got handshake i=%s p=%s exts=%o",i,n,s),this.peerId=n,this.peerIdBuffer=t,this.peerExtensions=s,this.extensions.fast&&this.peerExtensions.fast&&(this._debug("fast extension is enabled"),this.hasFast=!0),this.emit("handshake",i,n,s);for(const e in this._ext)this._ext[e].onHandshake(i,n,s);s.extended&&this._handshakeSent&&!this._extendedHandshakeSent&&this._sendExtendedHandshake()}_onChoke(){if(this.peerChoking=!0,this._debug("got choke"),this.emit("choke"),!this.hasFast)for(;this.requests.length;)this._callback(this.requests.pop(),new Error("peer is choking"),null)}_onUnchoke(){this.peerChoking=!1,this._debug("got unchoke"),this.emit("unchoke")}_onInterested(){this.peerInterested=!0,this._debug("got interested"),this.emit("interested")}_onUninterested(){this.peerInterested=!1,this._debug("got uninterested"),this.emit("uninterested")}_onHave(e){this.peerPieces.get(e)||(this._debug("got have %d",e),this.peerPieces.set(e,!0),this.emit("have",e))}_onBitField(e){this.peerPieces=new n.A(e),this._debug("got bitfield"),this.emit("bitfield",this.peerPieces)}_onRequest(e,t,s){if(this.amChoking&&(!this.hasFast||!this.allowedFastSet.includes(e)))return void(this.hasFast&&this.reject(e,t,s));this._debug("got request index=%d offset=%d length=%d",e,t,s);const i=(i,r)=>{if(n===this._pull(this.peerRequests,e,t,s))return i?(this._debug("error satisfying request index=%d offset=%d length=%d (%s)",e,t,s,i.message),void(this.hasFast&&this.reject(e,t,s))):void this.piece(e,t,r)},n=new P(e,t,s,i);this.peerRequests.push(n),this.emit("request",e,t,s,i)}_onPiece(e,t,s){this._debug("got piece index=%d offset=%d",e,t),this._callback(this._pull(this.requests,e,t,s.length),null,s),this.downloaded+=s.length,this.downloadSpeed(s.length),this.emit("download",s.length),this.emit("piece",e,t,s)}_onCancel(e,t,s){this._debug("got cancel index=%d offset=%d length=%d",e,t,s),this._pull(this.peerRequests,e,t,s),this.emit("cancel",e,t,s)}_onPort(e){this._debug("got port %d",e),this.emit("port",e)}_onSuggest(e){if(!this.hasFast)return this._debug("Error: got suggest whereas fast extension is disabled"),void this.destroy();this._debug("got suggest %d",e),this.emit("suggest",e)}_onHaveAll(){if(!this.hasFast)return this._debug("Error: got have-all whereas fast extension is disabled"),void this.destroy();this._debug("got have-all"),this.peerPieces=new A,this.emit("have-all")}_onHaveNone(){if(!this.hasFast)return this._debug("Error: got have-none whereas fast extension is disabled"),void this.destroy();this._debug("got have-none"),this.emit("have-none")}_onReject(e,t,s){if(!this.hasFast)return this._debug("Error: got reject whereas fast extension is disabled"),void this.destroy();this._debug("got reject index=%d offset=%d length=%d",e,t,s),this._callback(this._pull(this.requests,e,t,s),new Error("request was rejected"),null),this.emit("reject",e,t,s)}_onAllowedFast(e){if(!this.hasFast)return this._debug("Error: got allowed-fast whereas fast extension is disabled"),void this.destroy();this._debug("got allowed-fast %d",e),this.peerAllowedFastSet.includes(e)||this.peerAllowedFastSet.push(e),this.peerAllowedFastSet.length>100&&this.peerAllowedFastSet.shift(),this.emit("allowed-fast",e)}_onExtended(e,t){if(0===e){let e;try{e=i.A.decode(t)}catch(e){this._debug("ignoring invalid extended handshake: %s",e.message||e)}if(!e)return;if(this.peerExtendedHandshake=e,"object"==typeof e.m)for(const t in e.m)this.peerExtendedMapping[t]=Number(e.m[t].toString());for(const e in this._ext)this.peerExtendedMapping[e]&&this._ext[e].onExtendedHandshake(this.peerExtendedHandshake);this._debug("got extended handshake"),this.emit("extended","handshake",this.peerExtendedHandshake)}else this.extendedMapping[e]&&(e=this.extendedMapping[e],this._ext[e]&&this._ext[e].onMessage(t)),this._debug("got extended message ext=%s",e),this.emit("extended",e,t)}_onTimeout(){this._debug("request timed out"),this._callback(this.requests.shift(),new Error("request has timed out"),null),this.emit("timeout")}_write(e,t){if(2===this._encryptionMethod&&this._cryptoHandshakeDone&&(e=this._decrypt(e)),this._bufferSize+=e.length,this._buffer.push(e),this._buffer.length>1&&(this._buffer=[(0,l.xW)(this._buffer,this._bufferSize)]),this._cryptoSyncPattern){const t=this._buffer[0].indexOf(this._cryptoSyncPattern);if(-1!==t)this._buffer[0]=this._buffer[0].slice(t+this._cryptoSyncPattern.length),this._bufferSize-=t+this._cryptoSyncPattern.length,this._cryptoSyncPattern=null;else if(this._bufferSize+e.length>this._waitMaxBytes+this._cryptoSyncPattern.length)return this._debug("Error: could not resynchronize"),void this.destroy()}for(;this._bufferSize>=this._parserSize&&!this._cryptoSyncPattern;)if(0===this._parserSize)this._parser(new Uint8Array);else{const e=this._buffer[0];this._bufferSize-=this._parserSize,this._buffer=this._bufferSize?[e.slice(this._parserSize)]:[],this._parser(e.slice(0,this._parserSize))}t(null)}_callback(e,t,s){e&&(this._resetTimeout(!this.peerChoking&&!this._finished),e.callback(t,s))}_resetTimeout(e){if(!e||!this._timeoutMs||!this.requests.length)return clearTimeout(this._timeout),this._timeout=null,void(this._timeoutExpiresAt=null);const t=Date.now()+this._timeoutMs;if(this._timeout){if(t-this._timeoutExpiresAt<.05*this._timeoutMs)return;clearTimeout(this._timeout)}this._timeoutExpiresAt=t,this._timeout=setTimeout((()=>this._onTimeout()),this._timeoutMs),this._timeoutUnref&&this._timeout.unref&&this._timeout.unref()}_parse(e,t){this._parserSize=e,this._parser=t}_parseUntil(e,t){this._cryptoSyncPattern=e,this._waitMaxBytes=t}_onMessageLength(e){const t=new DataView(e.buffer,e.byteOffset,e.byteLength).getUint32(0);t>0?this._parse(t,this._onMessage):(this._onKeepAlive(),this._parse(4,this._onMessageLength))}_onMessage(e){this._parse(4,this._onMessageLength);const t=new DataView(e.buffer,e.byteOffset,e.byteLength);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(t.getUint32(1));case 5:return this._onBitField(e.slice(1));case 6:return this._onRequest(t.getUint32(1),t.getUint32(5),t.getUint32(9));case 7:return this._onPiece(t.getUint32(1),t.getUint32(5),e.slice(9));case 8:return this._onCancel(t.getUint32(1),t.getUint32(5),t.getUint32(9));case 9:return this._onPort(t.getUint16(1));case 13:return this._onSuggest(t.getUint32(1));case 14:return this._onHaveAll();case 15:return this._onHaveNone();case 16:return this._onReject(t.getUint32(1),t.getUint32(5),t.getUint32(9));case 17:return this._onAllowedFast(t.getUint32(1));case 20:return this._onExtended(e[1],e.slice(2));default:return this._debug("got unknown message"),this.emit("unknownmessage",e)}}_determineHandshakeType(){this._parse(1,(e=>{const t=e[0];19===t?this._parse(t+48,this._onHandshakeBuffer):this._parsePe1(e)}))}_parsePe1(e){this._parse(95,(t=>{this._onPe1((0,l.xW)([e,t])),this._parsePe3()}))}_parsePe2(){this._parse(96,(e=>{for(this._onPe2(e);!this._setGenerators;);this._parsePe4()}))}async _parsePe3(){const e=await(0,l.tW)((0,l.fk)(this._utfToHex("req1")+this._sharedSecret));this._parseUntil(e,512),this._parse(20,(e=>{for(this._onPe3(e);!this._setGenerators;);this._parsePe3Encrypted()}))}_parsePe3Encrypted(){this._parse(14,(e=>{const t=this._decryptHandshake(e.slice(0,8)),s=this._decryptHandshake(e.slice(8,12)),i=new DataView(this._decryptHandshake(e.slice(12,14)).buffer).getUint16(0);this._parse(i,(e=>{e=this._decryptHandshake(e),this._parse(2,(i=>{const n=new DataView(this._decryptHandshake(i).buffer).getUint16(0);this._parse(n,(i=>{i=this._decryptHandshake(i),this._onPe3Encrypted(t,s,e,i);const r=n?i[0]:null,o=n?i.slice(1,20):null;19===r&&"BitTorrent protocol"===(0,l.dU)(o)?this._onHandshakeBuffer(i.slice(1)):this._parseHandshake()}))}))}))}))}_parsePe4(){const e=this._decryptHandshake(x);this._parseUntil(e,512),this._parse(6,(e=>{const t=this._decryptHandshake(e.slice(0,4)),s=new DataView(this._decryptHandshake(e.slice(4,6)).buffer).getUint16(0);this._parse(s,(e=>{this._decryptHandshake(e),this._onPe4(t),this._parseHandshake(null)}))}))}_parseHandshake(){this._parse(1,(e=>{const t=e[0];if(19!==t)return this._debug("Error: wire not speaking BitTorrent protocol (%s)",t.toString()),void this.end();this._parse(t+48,this._onHandshakeBuffer)}))}_onHandshakeBuffer(e){const t=e.slice(0,19);if("BitTorrent protocol"!==(0,l.dU)(t))return this._debug("Error: wire not speaking BitTorrent protocol (%s)",(0,l.dU)(t)),void this.end();e=e.slice(19),this._onHandshake(e.slice(8,28),e.slice(28,48),{dht:!!(1&e[7]),fast:!!(4&e[7]),extended:!!(16&e[5])}),this._parse(4,this._onMessageLength)}_onFinish(){for(this._finished=!0,this.push(null);this.read(););for(clearInterval(this._keepAliveInterval),this._parse(Number.MAX_VALUE,(()=>{}));this.peerRequests.length;)this.peerRequests.pop();for(;this.requests.length;)this._callback(this.requests.pop(),new Error("wire was closed"),null)}_debug(...e){e[0]=`[${this._debugId}] ${e[0]}`,u(...e)}_pull(e,t,s,i){for(let n=0;n<e.length;n++){const r=e[n];if(r.piece===t&&r.offset===s&&r.length===i)return d(e,n),r}return null}_encryptHandshake(e){const t=new Uint8Array(e);if(!this._encryptGenerator)return this._debug("Warning: Encrypting without any generator"),t;for(let s=0;s<e.length;s++){const e=this._encryptGenerator.randomByte();t[s]=t[s]^e}return t}_encrypt(e){const t=new Uint8Array(e);if(!this._encryptGenerator||2!==this._encryptionMethod)return t;for(let s=0;s<e.length;s++){const e=this._encryptGenerator.randomByte();t[s]=t[s]^e}return t}_decryptHandshake(e){const t=new Uint8Array(e);if(!this._decryptGenerator)return this._debug("Warning: Decrypting without any generator"),t;for(let s=0;s<e.length;s++){const e=this._decryptGenerator.randomByte();t[s]=t[s]^e}return t}_decrypt(e){const t=new Uint8Array(e);if(!this._decryptGenerator||2!==this._encryptionMethod)return t;for(let s=0;s<e.length;s++){const e=this._decryptGenerator.randomByte();t[s]=t[s]^e}return t}_utfToHex(e){return(0,l.V5)((0,l.L0)(e))}}const I=T},6585:e=>{var t=1e3,s=60*t,i=60*s,n=24*i,r=7*n,o=365.25*n;function a(e,t,s,i){var n=t>=1.5*s;return Math.round(e/s)+" "+i+(n?"s":"")}e.exports=function(e,h){h=h||{};var l=typeof e;if("string"===l&&e.length>0)return function(e){if((e=String(e)).length>100)return;var a=/^(-?(?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(e);if(!a)return;var h=parseFloat(a[1]);switch((a[2]||"ms").toLowerCase()){case"years":case"year":case"yrs":case"yr":case"y":return h*o;case"weeks":case"week":case"w":return h*r;case"days":case"day":case"d":return h*n;case"hours":case"hour":case"hrs":case"hr":case"h":return h*i;case"minutes":case"minute":case"mins":case"min":case"m":return h*s;case"seconds":case"second":case"secs":case"sec":case"s":return h*t;case"milliseconds":case"millisecond":case"msecs":case"msec":case"ms":return h;default:return}}(e);if("number"===l&&isFinite(e))return h.long?function(e){var r=Math.abs(e);if(r>=n)return a(e,r,n,"day");if(r>=i)return a(e,r,i,"hour");if(r>=s)return a(e,r,s,"minute");if(r>=t)return a(e,r,t,"second");return e+" ms"}(e):function(e){var r=Math.abs(e);if(r>=n)return Math.round(e/n)+"d";if(r>=i)return Math.round(e/i)+"h";if(r>=s)return Math.round(e/s)+"m";i