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webtorrent

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Streaming torrent client

webtorrent.io

webtorrent/webtorrent

1 lines • 218 kB
1
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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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t)Object.defineProperty(e,i,{value:t[i],enumerable:!0,configurable:!0});return e}e.exports=function(e,i,s){if(!e||"string"==typeof e)throw new TypeError("Please pass an Error to err-code");s||(s={}),"object"==typeof i&&(s=i,i=""),i&&(s.code=i);try{return t(e,s)}catch(i){s.message=e.message,s.stack=e.stack;const n=function(){};n.prototype=Object.create(Object.getPrototypeOf(e));return t(new n,s)}}},6458:(e,t,i)=>{i.d(t,{A:()=>O});var s=i(988),n=i(3033),r=i(7264),o=i(7833),a=i(8727),h=i(8179),l=i(9639),c=i(1035),d=i(1314);const u=o("bittorrent-protocol"),p=(0,l.L0)("BitTorrent protocol"),f=new Uint8Array([0,0,0,0]),m=new Uint8Array([0,0,0,1,0]),_=new Uint8Array([0,0,0,1,1]),g=new Uint8Array([0,0,0,1,2]),y=new Uint8Array([0,0,0,1,3]),w=[0,0,0,0,0,0,0,0],b=[0,0,0,3,9,0,0],v=new Uint8Array([0,0,0,1,14]),k=new Uint8Array([0,0,0,1,15]),x=new Uint8Array([0,0,0,0,0,0,0,0]),S=new Uint8Array([0,0,1,2]),E=new Uint8Array([0,0,0,2]);function C(e,t){for(let i=e.length;i--;)e[i]^=t[i];return e}function A(e,t=0){return e[t]<<24|e[t+1]<<16|e[t+2]<<8|e[t+3]}function P(e,t,i){e[t]=i>>>24&255,e[t+1]=i>>>16&255,e[t+2]=i>>>8&255,e[t+3]=255&i}class T{constructor(e,t,i,s){this.piece=e,this.offset=t,this.length=i,this.callback=s}}class I{constructor(){this.buffer=new Uint8Array}get(e){return!0}set(e){}}class L extends h.Duplex{constructor(e=null,t=0,i=!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=i,i?(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 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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)),i=C(await(0,l.tW)((0,l.fk)(this._utfToHex("req2")+e)),await(0,l.tW)((0,l.fk)(this._utfToHex("req3")+this._sharedSecret))),s=new DataView((0,l.po)(2).buffer).getUint16(0)%512,n=(0,l.po)(s);let r=new Uint8Array(14+s+2);r.set(x),r.set(S,8);const o=new DataView(r.buffer);o.setInt16(12,s),n.copy(r,14),o.setInt16(14+s,0),r=this._encryptHandshake(r),this._push((0,l.xW)([t,i,r]))}async sendPe4(e){await this.setEncrypt(this._sharedSecret,e);const t=new DataView((0,l.po)(2).buffer).getUint16(0)%512,i=(0,l.po)(t);let s=new Uint8Array(14+t);const n=new DataView(s.buffer);s.set(x),s.set(E,8),n.setInt16(12,t),s.set(i,14),s=this._encryptHandshake(s),this._push(s),this._cryptoHandshakeDone=!0,this._debug("completed crypto handshake")}handshake(e,t,i){let s,n;if("string"==typeof e?(e=e.toLowerCase(),s=(0,l.fk)(e)):(s=e,e=(0,l.V5)(s)),"string"==typeof t?n=(0,l.fk)(t):(n=t,t=(0,l.V5)(n)),this._infoHash=s,20!==s.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,i);const r=new Uint8Array(w);this.extensions={extended:!0,dht:!(!i||!i.dht),fast:!(!i||!i.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,s,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 i=this.extendedMapping[t];e.m[i]=Number(t)}this.extended(0,s.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,i,s){return s||(s=()=>{}),this._finished?s(new Error("wire is closed")):!this.peerChoking||this.hasFast&&this.peerAllowedFastSet.includes(e)?(this._debug("request index=%d offset=%d length=%d",e,t,i),this.requests.push(new T(e,t,i,s)),this._timeout||this._resetTimeout(!0),void this._message(6,[e,t,i],null)):s(new Error("peer is choking"))}piece(e,t,i){this._debug("piece index=%d offset=%d",e,t),this._message(7,[e,t],i),this.uploaded+=i.length,this.uploadSpeed(i.length),this.emit("upload",i.length)}cancel(e,t,i){this._debug("cancel index=%d offset=%d length=%d",e,t,i),this._callback(this._pull(this.requests,e,t,i),new Error("request was cancelled"),null),this._message(8,[e,t,i],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,i){if(!this.hasFast)throw Error("fast extension is disabled");this._debug("reject index=%d offset=%d length=%d",e,t,i),this._pull(this.peerRequests,e,t,i),this._message(16,[e,t,i],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 i=new Uint8Array([e]),n=ArrayBuffer.isView(t)?t:s.A.encode(t);this._message(20,[],(0,l.xW)([i,n]))}}async setEncrypt(e,t){if(!this.type.startsWith("tcp"))return!1;const i="tcpOutgoing"===this.type,s=new a([...await(0,l.tW)((0,l.fk)(this._utfToHex("keyA")+e+t))]),n=new a([...await(0,l.tW)((0,l.fk)(this._utfToHex("keyB")+e+t))]);this._encryptGenerator=i?s:n,this._decryptGenerator=i?n:s;for(let e=0;e<1024;e++)this._encryptGenerator.randomByte(),this._decryptGenerator.randomByte();return this._setGenerators=!0,this.emit("_generators"),!0}_message(e,t,i){const s=i?i.length:0,n=new Uint8Array(5+4*t.length);P(n,0,n.length+s-4),n[4]=e;for(let e=0;e<t.length;e++)P(n,5+4*e,t[e]);this._push(n),i&&this._push(i)}_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.tW)((0,l.fk)(this._utfToHex("req3")+this._sharedSecret)),i=(0,l.V5)(C(t,e));this.emit("pe3",i)}_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,i){const s=(0,l.V5)(e),n=(0,l.V5)(t);this._debug("got handshake i=%s p=%s exts=%o",s,n,i),this.peerId=n,this.peerIdBuffer=t,this.peerExtensions=i,this.extensions.fast&&this.peerExtensions.fast&&(this._debug("fast extension is enabled"),this.hasFast=!0),this.emit("handshake",s,n,i);for(const e in this._ext)this._ext[e].onHandshake(s,n,i);i.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,i){if(this.amChoking&&(!this.hasFast||!this.allowedFastSet.includes(e)))return void(this.hasFast&&this.reject(e,t,i));this._debug("got request index=%d offset=%d length=%d",e,t,i);const s=(s,r)=>{if(n===this._pull(this.peerRequests,e,t,i))return s?(this._debug("error satisfying request index=%d offset=%d length=%d (%s)",e,t,i,s.message),void(this.hasFast&&this.reject(e,t,i))):void this.piece(e,t,r)},n=new T(e,t,i,s);this.peerRequests.push(n),this.emit("request",e,t,i,s)}_onPiece(e,t,i){this._debug("got piece index=%d offset=%d",e,t),this._callback(this._pull(this.requests,e,t,i.length),null,i),this.downloaded+=i.length,this.downloadSpeed(i.length),this.emit("download",i.length),this.emit("piece",e,t,i)}_onCancel(e,t,i){this._debug("got cancel index=%d offset=%d length=%d",e,t,i),this._pull(this.peerRequests,e,t,i),this.emit("cancel",e,t,i)}_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 I,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,i){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,i),this._callback(this._pull(this.requests,e,t,i),new Error("request was rejected"),null),this.emit("reject",e,t,i)}_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=s.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.subarray(this._parserSize)]:[],this._parser(e.subarray(0,this._parserSize))}t(null)}_callback(e,t,i){e&&(this._resetTimeout(!this.peerChoking&&!this._finished),e.callback(t,i))}_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=A(e);t>0?this._parse(t,this._onMessage):(this._onKeepAlive(),this._parse(4,this._onMessageLength))}_onMessage(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(A(e,1));case 5:return this._onBitField(e.subarray(1));case 6:return this._onRequest(A(e,1),A(e,5),A(e,9));case 7:return this._onPiece(A(e,1),A(e,5),e.subarray(9));case 8:return this._onCancel(A(e,1),A(e,5),A(e,9));case 9:return this._onPort(e[1]<<8|e[2]);case 13:return this._onSuggest(A(e,1));case 14:return this._onHaveAll();case 15:return this._onHaveNone();case 16:return this._onReject(A(e,1),A(e,5),A(e,9));case 17:return this._onAllowedFast(A(e,1));case 20:return this._onExtended(e[1],e.subarray(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,async e=>{this._onPe2(e),this._setGenerators||await new Promise(e=>this.once("_generators",e)),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,async e=>{this._onPe3(e),this._setGenerators||await new Promise(e=>this.once("_generators",e)),this._parsePe3Encrypted()})}_parsePe3Encrypted(){this._parse(14,e=>{const t=this._decryptHandshake(e.slice(0,8)),i=this._decryptHandshake(e.slice(8,12)),s=new DataView(this._decryptHandshake(e.slice(12,14)).buffer).getUint16(0);this._parse(s,e=>{e=this._decryptHandshake(e),this._parse(2,s=>{const n=new DataView(this._decryptHandshake(s).buffer).getUint16(0);this._parse(n,s=>{s=this._decryptHandshake(s),this._onPe3Encrypted(t,i,e,s);const r=n?s[0]:null,o=n?s.slice(1,20):null;19===r&&"BitTorrent protocol"===(0,l.dU)(o)?this._onHandshakeBuffer(s.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)),i=new DataView(this._decryptHandshake(e.slice(4,6)).buffer).getUint16(0);this._parse(i,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}] ${e[0]}`,u(...e)}_pull(e,t,i,s){for(let n=0;n<e.length;n++){const r=e[n];if(r.piece===t&&r.offset===i&&r.length===s)return d(e,n),r}return null}_encryptHandshake(e){const t=new Uint8Array(e);if(!this._encryptGenerator)return this._debug("Warning: Encrypting without any generator"),t;for(let i=0;i<e.length;i++){const e=this._encryptGenerator.randomByte();t[i]=t[i]^e}return t}_encrypt(e){const t=new Uint8Array(e);if(!this._encryptGenerator||2!==this._encryptionMethod)return t;for(let i=0;i<e.length;i++){const e=this._encryptGenerator.randomByte();t[i]=t[i]^e}return t}_decryptHandshake(e){const t=new Uint8Array(e);if(!this._decryptGenerator)return this._debug("Warning: Decrypting without any generator"),t;for(let i=0;i<e.length;i++){const e=this._decryptGenerator.randomByte();t[i]=t[i]^e}return t}_decrypt(e){const t=new Uint8Array(e);if(!this._decryptGenerator||2!==this._encryptionMethod)return t;for(let i=0;i<e.length;i++){const e=this._decryptGenerator.randomByte();t[i]=t[i]^e}return t}_utfToHex(e){return(0,l.V5)((0,l.L0)(e))}}const O=L},6585:e=>{var t=1e3,i=60*t,s=60*i,n=24*s,r=7*n,o=365.25*n;function a(e,t,i,s){var n=t>=1.5*i;return Math.round(e/i)+" "+s+(n?"s":"")}e.exports=function(e,h){h=h||{};var l=typeof e;if("string"===l&&e.length>0)return function(e){if((e=String(e)).length>100)return;var a=/^(-?(?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/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*s;case"minutes":case"minute":case"mins":case"min":case"m":return h*i;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>=s)return a(e,r,s,"hour");if(r>=i)return a(e,r,i,"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>=s)return Math.round(e/s)+"h";if(r>=i)return Math.round(e/i)+"m";if(r>=t)return Math.round(e/t)+"s";return e+"ms"}(e);throw new Error("val is not a non-empty string or a valid number. val="+JSON.stringify(e))}},6587:e=>{e.exports=function e(t,i){if(t&&i)return e(t)(i);if("function"!=typeof t)throw new TypeError("need wrapper function");return Object.keys(t).f