大佬你的代码总是不通，这个代码就好用点，不知道哪里不一样

总觉得有点不对劲，不如另一个代码的好用，这个一直不通

// version base on commit 43fad05dcdae3b723c53c226f8181fc5bd47223e, time is 2023-06-22 15:20:02 UTC. // @ts-ignore import { connect } from 'cloudflare:sockets';

// How to generate your own UUID: // [Windows] Press "Win + R", input cmd and run: Powershell -NoExit -Command "[guid]::NewGuid()" let userID = 'xxxx-xxxx-xxxx-xxxx-xxxxxxxxx';

let proxyIP = 'cdn-all.xn--b6gac.eu.org';

if (!isValidUUID(userID)) { throw new Error('uuid is not valid'); }

export default { /**

@param {import("@cloudflare/workers-types").Request} request
@param {{UUID: string, PROXYIP: string}} env
@param {import("@cloudflare/workers-types").ExecutionContext} ctx
@returns {Promise} */ async fetch(request, env, ctx) { try { userID = env.UUID || userID; proxyIP = env.PROXYIP || proxyIP; const upgradeHeader = request.headers.get('Upgrade'); if (!upgradeHeader || upgradeHeader !== 'websocket') { const url = new URL(request.url); switch (url.pathname) { case '/': return new Response(JSON.stringify(request.cf), { status: 200 }); case /${userID}: { const vlessConfig = getVLESSConfig(userID, request.headers.get('Host')); return new Response(${vlessConfig}, { status: 200, headers: { "Content-Type": "text/plain;charset=utf-8", } }); } default: return new Response('Not found', { status: 404 }); } } else { return await vlessOverWSHandler(request); } } catch (err) { /* @type {Error} / let e = err; return new Response(e.toString()); } }, };

/**

@param {import("@cloudflare/workers-types").Request} request */ async function vlessOverWSHandler(request) {

/* @type {import("@cloudflare/workers-types").WebSocket[]} / // @ts-ignore const webSocketPair = new WebSocketPair(); const [client, webSocket] = Object.values(webSocketPair);

webSocket.accept();

const readableWebSocketStream = makeReadableWebSocketStream(webSocket, earlyDataHeader, log);

/* @type {{ value: import("@cloudflare/workers-types").Socket | null}}/ let remoteSocketWapper = { value: null, }; let udpStreamWrite = null; let isDns = false;

// ws --> remote readableWebSocketStream.pipeTo(new WritableStream({ async write(chunk, controller) { if (isDns && udpStreamWrite) { return udpStreamWrite(chunk); } if (remoteSocketWapper.value) { const writer = remoteSocketWapper.value.writable.getWriter() await writer.write(chunk); writer.releaseLock(); return; }

    const {
        hasError,
        message,
        portRemote = 443,
        addressRemote = '',
        rawDataIndex,
        vlessVersion = new Uint8Array([0, 0]),
        isUDP,
    } = processVlessHeader(chunk, userID);
    address = addressRemote;
    portWithRandomLog = `${portRemote}--${Math.random()} ${isUDP ? 'udp ' : 'tcp '
        } `;
    if (hasError) {
        // controller.error(message);
        throw new Error(message); // cf seems has bug, controller.error will not end stream
        // webSocket.close(1000, message);
        return;
    }
    // if UDP but port not DNS port, close it
    if (isUDP) {
        if (portRemote === 53) {
            isDns = true;
        } else {
            // controller.error('UDP proxy only enable for DNS which is port 53');
            throw new Error('UDP proxy only enable for DNS which is port 53'); // cf seems has bug, controller.error will not end stream
            return;
        }
    }
    // ["version", "附加信息长度 N"]
    const vlessResponseHeader = new Uint8Array([vlessVersion[0], 0]);
    const rawClientData = chunk.slice(rawDataIndex);

    // TODO: support udp here when cf runtime has udp support
    if (isDns) {
        const { write } = await handleUDPOutBound(webSocket, vlessResponseHeader, log);
        udpStreamWrite = write;
        udpStreamWrite(rawClientData);
        return;
    }
    handleTCPOutBound(remoteSocketWapper, addressRemote, portRemote, rawClientData, webSocket, vlessResponseHeader, log);
},
close() {
    log(`readableWebSocketStream is close`);
},
abort(reason) {
    log(`readableWebSocketStream is abort`, JSON.stringify(reason));
},

})).catch((err) => { log('readableWebSocketStream pipeTo error', err); });

return new Response(null, { status: 101, // @ts-ignore webSocket: client, }); }

/**

Handles outbound TCP connections.
@param {any} remoteSocket
@param {string} addressRemote The remote address to connect to.
@param {number} portRemote The remote port to connect to.
@param {Uint8Array} rawClientData The raw client data to write.
@param {import("@cloudflare/workers-types").WebSocket} webSocket The WebSocket to pass the remote socket to.
@param {Uint8Array} vlessResponseHeader The VLESS response header.
@param {function} log The logging function.
@returns {Promise} The remote socket. */ async function handleTCPOutBound(remoteSocket, addressRemote, portRemote, rawClientData, webSocket, vlessResponseHeader, log,) { async function connectAndWrite(address, port) { /* @type {import("@cloudflare/workers-types").Socket} / const tcpSocket = connect({ hostname: address, port: port, }); remoteSocket.value = tcpSocket; log(connected to ${address}:${port}); const writer = tcpSocket.writable.getWriter(); await writer.write(rawClientData); // first write, nomal is tls client hello writer.releaseLock(); return tcpSocket; }

// if the cf connect tcp socket have no incoming data, we retry to redirect ip async function retry() { const tcpSocket = await connectAndWrite(proxyIP || addressRemote, portRemote) // no matter retry success or not, close websocket tcpSocket.closed.catch(error => { console.log('retry tcpSocket closed error', error); }).finally(() => { safeCloseWebSocket(webSocket); }) remoteSocketToWS(tcpSocket, webSocket, vlessResponseHeader, null, log); }

const tcpSocket = await connectAndWrite(addressRemote, portRemote);

// when remoteSocket is ready, pass to websocket // remote--> ws remoteSocketToWS(tcpSocket, webSocket, vlessResponseHeader, retry, log); }

/**

@param {import("@cloudflare/workers-types").WebSocket} webSocketServer
@param {string} earlyDataHeader for ws 0rtt

@param {(info: string)=> void} log for ws 0rtt */ function makeReadableWebSocketStream(webSocketServer, earlyDataHeader, log) { let readableStreamCancel = false; const stream = new ReadableStream({ start(controller) { webSocketServer.addEventListener('message', (event) => { if (readableStreamCancel) { return; } const message = event.data; controller.enqueue(message); });

    // The event means that the client closed the client -> server stream.
    // However, the server -> client stream is still open until you call close() on the server side.
    // The WebSocket protocol says that a separate close message must be sent in each direction to fully close the socket.
    webSocketServer.addEventListener('close', () => {
        // client send close, need close server
        // if stream is cancel, skip controller.close
        safeCloseWebSocket(webSocketServer);
        if (readableStreamCancel) {
            return;
        }
        controller.close();
    }
    );
    webSocketServer.addEventListener('error', (err) => {
        log('webSocketServer has error');
        controller.error(err);
    }
    );
    // for ws 0rtt
    const { earlyData, error } = base64ToArrayBuffer(earlyDataHeader);
    if (error) {
        controller.error(error);
    } else if (earlyData) {
        controller.enqueue(earlyData);
    }
},

pull(controller) {
    // if ws can stop read if stream is full, we can implement backpressure
    // https://streams.spec.whatwg.org/#example-rs-push-backpressure
},
cancel(reason) {
    // 1. pipe WritableStream has error, this cancel will called, so ws handle server close into here
    // 2. if readableStream is cancel, all controller.close/enqueue need skip,
    // 3. but from testing controller.error still work even if readableStream is cancel
    if (readableStreamCancel) {
        return;
    }
    log(`ReadableStream was canceled, due to ${reason}`)
    readableStreamCancel = true;
    safeCloseWebSocket(webSocketServer);
}

});

return stream;

}

// https://xtls.github.io/development/protocols/vless.html // https://github.com/zizifn/excalidraw-backup/blob/main/v2ray-protocol.excalidraw

/**

@param { ArrayBuffer} vlessBuffer
@param {string} userID
@returns */ function processVlessHeader( vlessBuffer, userID ) { if (vlessBuffer.byteLength < 24) { return { hasError: true, message: 'invalid data', }; } const version = new Uint8Array(vlessBuffer.slice(0, 1)); let isValidUser = false; let isUDP = false; if (stringify(new Uint8Array(vlessBuffer.slice(1, 17))) === userID) { isValidUser = true; } if (!isValidUser) { return { hasError: true, message: 'invalid user', }; }

const optLength = new Uint8Array(vlessBuffer.slice(17, 18))[0]; //skip opt for now

const command = new Uint8Array( vlessBuffer.slice(18 + optLength, 18 + optLength + 1) )[0];

// 0x01 TCP // 0x02 UDP // 0x03 MUX if (command === 1) { } else if (command === 2) { isUDP = true; } else { return { hasError: true, message: command ${command} is not support, command 01-tcp,02-udp,03-mux, }; } const portIndex = 18 + optLength + 1; const portBuffer = vlessBuffer.slice(portIndex, portIndex + 2); // port is big-Endian in raw data etc 80 == 0x005d const portRemote = new DataView(portBuffer).getUint16(0);

let addressIndex = portIndex + 2; const addressBuffer = new Uint8Array( vlessBuffer.slice(addressIndex, addressIndex + 1) );

// 1--> ipv4 addressLength =4 // 2--> domain name addressLength=addressBuffer[1] // 3--> ipv6 addressLength =16 const addressType = addressBuffer[0]; let addressLength = 0; let addressValueIndex = addressIndex + 1; let addressValue = ''; switch (addressType) { case 1: addressLength = 4; addressValue = new Uint8Array( vlessBuffer.slice(addressValueIndex, addressValueIndex + addressLength) ).join('.'); break; case 2: addressLength = new Uint8Array( vlessBuffer.slice(addressValueIndex, addressValueIndex + 1) )[0]; addressValueIndex += 1; addressValue = new TextDecoder().decode( vlessBuffer.slice(addressValueIndex, addressValueIndex + addressLength) ); break; case 3: addressLength = 16; const dataView = new DataView( vlessBuffer.slice(addressValueIndex, addressValueIndex + addressLength) ); // 2001:0db8:85a3:0000:0000:8a2e:0370:7334 const ipv6 = []; for (let i = 0; i < 8; i++) { ipv6.push(dataView.getUint16(i * 2).toString(16)); } addressValue = ipv6.join(':'); // seems no need add [] for ipv6 break; default: return { hasError: true, message: invild addressType is ${addressType}, }; } if (!addressValue) { return { hasError: true, message: addressValue is empty, addressType is ${addressType}, }; }

return { hasError: false, addressRemote: addressValue, addressType, portRemote, rawDataIndex: addressValueIndex + addressLength, vlessVersion: version, isUDP, }; }

/**

@param {import("@cloudflare/workers-types").Socket} remoteSocket
@param {import("@cloudflare/workers-types").WebSocket} webSocket
@param {ArrayBuffer} vlessResponseHeader
@param {(() => Promise) | null} retry
@param {} log / async function remoteSocketToWS(remoteSocket, webSocket, vlessResponseHeader, retry, log) { // remote--> ws let remoteChunkCount = 0; let chunks = []; /* @type {ArrayBuffer | null} / let vlessHeader = vlessResponseHeader; let hasIncomingData = false; // check if remoteSocket has incoming data await remoteSocket.readable .pipeTo( new WritableStream({ start() { }, /**
- @param {Uint8Array} chunk
- @param {} controller / async write(chunk, controller) { hasIncomingData = true; // remoteChunkCount++; if (webSocket.readyState !== WS_READY_STATE_OPEN) { controller.error( 'webSocket.readyState is not open, maybe close' ); } if (vlessHeader) { webSocket.send(await new Blob([vlessHeader, chunk]).arrayBuffer()); vlessHeader = null; } else { // seems no need rate limit this, CF seems fix this??.. // if (remoteChunkCount > 20000) { // // cf one package is 4096 byte(4kb), 4096 * 20000 = 80M // await delay(1); // } webSocket.send(chunk); } }, close() { log(remoteConnection!.readable is close with hasIncomingData is ${hasIncomingData}); // safeCloseWebSocket(webSocket); // no need server close websocket frist for some case will casue HTTP ERR_CONTENT_LENGTH_MISMATCH issue, client will send close event anyway. }, abort(reason) { console.error(remoteConnection!.readable abort, reason); }, }) ) .catch((error) => { console.error( remoteSocketToWS has exception, error.stack || error ); safeCloseWebSocket(webSocket); });
// seems is cf connect socket have error, // 1. Socket.closed will have error // 2. Socket.readable will be close without any data coming if (hasIncomingData === false && retry) { log(retry) retry(); } }

/**

@param {string} base64Str
@returns */ function base64ToArrayBuffer(base64Str) { if (!base64Str) { return { error: null }; } try { // go use modified Base64 for URL rfc4648 which js atob not support base64Str = base64Str.replace(/-/g, '+').replace(/_/g, '/'); const decode = atob(base64Str); const arryBuffer = Uint8Array.from(decode, (c) => c.charCodeAt(0)); return { earlyData: arryBuffer.buffer, error: null }; } catch (error) { return { error }; } }

/**

This is not real UUID validation
@param {string} uuid */ function isValidUUID(uuid) { const uuidRegex = /^[0-9a-f]{8}-[0-9a-f]{4}-[4][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i; return uuidRegex.test(uuid); }

const WS_READY_STATE_OPEN = 1; const WS_READY_STATE_CLOSING = 2; /**

Normally, WebSocket will not has exceptions when close.
@param {import("@cloudflare/workers-types").WebSocket} socket */ function safeCloseWebSocket(socket) { try { if (socket.readyState === WS_READY_STATE_OPEN || socket.readyState === WS_READY_STATE_CLOSING) { socket.close(); } } catch (error) { console.error('safeCloseWebSocket error', error); } }

/**

@param {import("@cloudflare/workers-types").WebSocket} webSocket
@param {ArrayBuffer} vlessResponseHeader
@param {(string)=> void} log */ async function handleUDPOutBound(webSocket, vlessResponseHeader, log) {

let isVlessHeaderSent = false; const transformStream = new TransformStream({ start(controller) {
```
},
transform(chunk, controller) {
    // udp message 2 byte is the the length of udp data
    // TODO: this should have bug, beacsue maybe udp chunk can be in two websocket message
    for (let index = 0; index < chunk.byteLength;) {
        const lengthBuffer = chunk.slice(index, index + 2);
        const udpPakcetLength = new DataView(lengthBuffer).getUint16(0);
        const udpData = new Uint8Array(
            chunk.slice(index + 2, index + 2 + udpPakcetLength)
        );
        index = index + 2 + udpPakcetLength;
        controller.enqueue(udpData);
    }
},
flush(controller) {
}
```
});

// only handle dns udp for now transformStream.readable.pipeTo(new WritableStream({ async write(chunk) { const resp = await fetch('https://1.1.1.1/dns-query', { method: 'POST', headers: { 'content-type': 'application/dns-message', }, body: chunk, }) const dnsQueryResult = await resp.arrayBuffer(); const udpSize = dnsQueryResult.byteLength; // console.log([...new Uint8Array(dnsQueryResult)].map((x) => x.toString(16))); const udpSizeBuffer = new Uint8Array([(udpSize >> 8) & 0xff, udpSize & 0xff]); if (webSocket.readyState === WS_READY_STATE_OPEN) { log(doh success and dns message length is ${udpSize}); if (isVlessHeaderSent) { webSocket.send(await new Blob([udpSizeBuffer, dnsQueryResult]).arrayBuffer()); } else { webSocket.send(await new Blob([vlessResponseHeader, udpSizeBuffer, dnsQueryResult]).arrayBuffer()); isVlessHeaderSent = true; } } } })).catch((error) => { log('dns udp has error' + error) });

const writer = transformStream.writable.getWriter();

return { /**
- @param {Uint8Array} chunk */ write(chunk) { writer.write(chunk); } }; }

/**

@param {string} userID
@param {string | null} hostName
@returns {string} */ function getVLESSConfig(userID, hostName) { const vlessMain = vless://${userID}@${hostName}:443?encryption=none&security=tls&sni=${hostName}&fp=randomized&type=ws&host=${hostName}&path=%2F%3Fed%3D2048#${hostName} return ` ################################################################ v2ray

${vlessMain}

################################################################ clash-meta
- type: vless name: ${hostName} server: ${hostName} port: 443 uuid: ${userID} network: ws tls: true udp: false sni: ${hostName} client-fingerprint: chrome ws-opts: path: "/?ed=2048" headers: host: ${hostName}
  
  ################################################################ `; }

3Kmfi6HP / EDtunnel

大佬你的代码总是不通，这个代码就好用点，不知道哪里不一样 #32

${vlessMain}

################################################################ clash-meta

type: vless name: ${hostName} server: ${hostName} port: 443 uuid: ${userID} network: ws tls: true udp: false sni: ${hostName} client-fingerprint: chrome ws-opts: path: "/?ed=2048" headers: host: ${hostName}