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CloudFlare Workers VLESS 永久免费节点搭建 前言近期很火的利用 CloudFlare Workers 搭建 VLESS 节点，支持自定义伪装网页，可以 CDN 自选域名，13个端口随便换。注册 CloudFlare相信很多人都有 CloudFlare 帐户，这里额外介绍一个临时邮箱地址，用于注册 CloudFlare。 临时邮箱：https://www.linshiyouxiang.net/CloudFlare Workers vless 代码部署登录 CloudFlare：https://dash.cloudflare.com/点击 Workers 和 Pages，点击 创建 Workers。 创建一个脚本名称，比如 vless，点击 部署。 点击 配置 Worker，点击 快速编辑。清除默认代码。将下面章节提到的代码，粘贴到代码框中。找到 let userID = 和 let proxyIP，更改 UUID 和推荐的 CDN 加速 IP。点击 保存并部署。以下介绍两组代码供选择使用，强烈建议更换默认的 userID，如果不更换，容易被扫描盗用。生成 UUID在线生成地址：https://1024tools.com/uuid打开 V2ray 客户端，选择 添加 VLESS 服务器，在弹出的对话框中，点击 生成 按钮，即可生成 UUID。CDN 加速 IPcdn-all.xn--b6gac.eu.org cdn.xn--b6gac.eu.org cdn-b100.xn--b6gac.eu.org edgetunnel.anycast.eu.org cdn.anycast.eu.org（亚洲地区） jp.cloudflarest.link achk.cloudflarest.link（阿里香港优选）vless 部署代码1代码引用地址：https://github.com/zizifn/edgetunnel/blob/main/src/worker-vless.js 注意：需要更改 UUID, 添加 proxyIP 地址。// <!--GAMFC-->version base on commit 43fad05dcdae3b723c53c226f8181fc5bd47223e, time is 2023-06-22 15:20:02 UTC<!--GAMFC-END-->. // @ts-ignore import from 'cloudflare:sockets'; // How to generate your own UUID: // [Windows] Press "Win + R", input cmd and run: Powershell -NoExit -Command "[guid]::NewGuid()" let userID = 'd342d11e-d424-4583-b36e-524ab1f0afa4'; let proxyIP = ''; if (!isValidUUID(userID)) { throw new Error('uuid is not valid'); } export default { /** * @param request * @param } env * @param ctx * @returns */ 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), ); case `/$`: { const vlessConfig = getVLESSConfig(userID, request.headers.get('Host')); return new Response(`$`, { status: 200, headers: { "Content-Type": "text/plain;charset=utf-8", } }); } default: return new Response('Not found', ); } } else { return await vlessOverWSHandler(request); } } catch (err) { /** @type */ let e = err; return new Response(e.toString()); } }, }; /** * * @param request */ async function vlessOverWSHandler(request) { /** @type */ // @ts-ignore const webSocketPair = new WebSocketPair(); const [client, webSocket] = Object.values(webSocketPair); webSocket.accept(); let address = ''; let portWithRandomLog = ''; const log = (/** @type */ info, /** @type */ event) => { console.log(`[$:$] $`, event || ''); }; const earlyDataHeader = request.headers.get('sec-websocket-protocol') || ''; const readableWebSocketStream = makeReadableWebSocketStream(webSocket, earlyDataHeader, log); /** @type }*/ let remoteSocketWapper = { value: null, }; let udpStreamWrite = null; let isDns = false; // ws --> remote readableWebSocketStream.pipeTo(new WritableStream({ async write(chunk, controller) { if (isDns && udpStreamWrite) { return udpStreamWrite(chunk); } if (remoteSocketWapper.value) { const writer = remoteSocketWapper.value.writable.getWriter() await writer.write(chunk); writer.releaseLock(); return; } const { hasError, message, portRemote = 443, addressRemote = '', rawDataIndex, vlessVersion = new Uint8Array([0, 0]), isUDP, } = processVlessHeader(chunk, userID); address = addressRemote; portWithRandomLog = `$--$ ${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 = 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 remoteSocket * @param addressRemote The remote address to connect to. * @param portRemote The remote port to connect to. * @param rawClientData The raw client data to write. * @param webSocket The WebSocket to pass the remote socket to. * @param vlessResponseHeader The VLESS response header. * @param log The logging function. * @returns The remote socket. */ async function handleTCPOutBound(remoteSocket, addressRemote, portRemote, rawClientData, webSocket, vlessResponseHeader, log,) { async function connectAndWrite(address, port) { /** @type */ const tcpSocket = connect({ hostname: address, port: port, }); remoteSocket.value = tcpSocket; log(`connected to $:$`); 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 webSocketServer * @param earlyDataHeader for ws 0rtt * @param 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 = 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 $`) 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 vlessBuffer * @param 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 $ 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 $`, }; } if (!addressValue) { return { hasError: true, message: `addressValue is empty, addressType is $`, }; } return { hasError: false, addressRemote: addressValue, addressType, portRemote, rawDataIndex: addressValueIndex + addressLength, vlessVersion: version, isUDP, }; } /** * * @param remoteSocket * @param webSocket * @param vlessResponseHeader * @param retry * @param log */ async function remoteSocketToWS(remoteSocket, webSocket, vlessResponseHeader, retry, log) { // remote--> ws let remoteChunkCount = 0; let chunks = []; /** @type */ let vlessHeader = vlessResponseHeader; let hasIncomingData = false; // check if remoteSocket has incoming data await remoteSocket.readable .pipeTo( new WritableStream({ start() { }, /** * * @param 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 $`); // safeCloseWebSocket(webSocket); // no need server close websocket frist for some case will casue HTTP ERR_CONTENT_LENGTH_MISMATCH issue, client will send close event anyway. }, abort(reason) { console.error(`remoteConnection!.readable abort`, reason); }, }) ) .catch((error) => { console.error( `remoteSocketToWS has exception `, error.stack || error ); safeCloseWebSocket(webSocket); }); // seems is cf connect socket have error, // 1. Socket.closed will have error // 2. Socket.readable will be close without any data coming if (hasIncomingData === false && retry) { log(`retry`) retry(); } } /** * * @param base64Str * @returns */ function base64ToArrayBuffer(base64Str) { if (!base64Str) { return ; } try { // go use modified Base64 for URL rfc4648 which js atob not support base64Str = base64Str.replace(/-/g, '+').replace(/_/g, '/'); const decode = atob(base64Str); const arryBuffer = Uint8Array.from(decode, (c) => c.charCodeAt(0)); return ; } catch (error) { return ; } } /** * This is not real UUID validation * @param uuid */ function isValidUUID(uuid) { const uuidRegex = /^[0-9a-f]-[0-9a-f]-[4][0-9a-f]-[89ab][0-9a-f]-[0-9a-f]$/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 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); } } const byteToHex = []; for (let i = 0; i < 256; ++i) { byteToHex.push((i + 256).toString(16).slice(1)); } function unsafeStringify(arr, offset = 0) { return (byteToHex[arr[offset + 0]] + byteToHex[arr[offset + 1]] + byteToHex[arr[offset + 2]] + byteToHex[arr[offset + 3]] + "-" + byteToHex[arr[offset + 4]] + byteToHex[arr[offset + 5]] + "-" + byteToHex[arr[offset + 6]] + byteToHex[arr[offset + 7]] + "-" + byteToHex[arr[offset + 8]] + byteToHex[arr[offset + 9]] + "-" + byteToHex[arr[offset + 10]] + byteToHex[arr[offset + 11]] + byteToHex[arr[offset + 12]] + byteToHex[arr[offset + 13]] + byteToHex[arr[offset + 14]] + byteToHex[arr[offset + 15]]).toLowerCase(); } function stringify(arr, offset = 0) { const uuid = unsafeStringify(arr, offset); if (!isValidUUID(uuid)) { throw TypeError("Stringified UUID is invalid"); } return uuid; } /** * * @param webSocket * @param vlessResponseHeader * @param 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 $`); if (isVlessHeaderSent) { webSocket.send(await new Blob([udpSizeBuffer, dnsQueryResult]).arrayBuffer()); } else { webSocket.send(await new Blob([vlessResponseHeader, udpSizeBuffer, dnsQueryResult]).arrayBuffer()); isVlessHeaderSent = true; } } } })).catch((error) => { log('dns udp has error' + error) }); const writer = transformStream.writable.getWriter(); return { /** * * @param chunk */ write(chunk) { writer.write(chunk); } }; } /** * * @param userID * @param hostName * @returns */ function getVLESSConfig(userID, hostName) { const vlessMain = `vless://$@$:443?encryption=none&security=tls&sni=$&fp=randomized&type=ws&host=$&path=%2F%3Fed%3D2048#$` return ` ################################################################ v2ray --------------------------------------------------------------- $ --------------------------------------------------------------- ################################################################ clash-meta --------------------------------------------------------------- - type: vless name: $ server: $ port: 443 uuid: $ network: ws tls: true udp: false sni: $ client-fingerprint: chrome ws-opts: path: "/?ed=2048" headers: host: $ --------------------------------------------------------------- ################################################################ `; }vless 部署代码2代码引用地址：https://github.com/yonggekkk/CF-workers-pages-vless/blob/main/\_worker.js需要更改 UUID自带 CloudFlare 证书的 proxyIP 地址代码104行，支持自定义伪装网页，修改对应的网页地址即可。代码中地址为 CCTV 官网// <!--GAMFC-->version base on commit 43fad05dcdae3b723c53c226f8181fc5bd47223e, time is 2023-06-22 15:20:02 UTC<!--GAMFC-END-->. // @ts-ignore import from 'cloudflare:sockets'; // How to generate your own UUID: // [Windows] Press "Win + R", input cmd and run: Powershell -NoExit -Command "[guid]::NewGuid()" let userID = 'd342d11e-d424-4583-b36e-524ab1f0afa4'; const proxyIPs = ['cdn-all.xn--b6gac.eu.org', 'cdn-all.xijingping.link', 'cdn.xn--b6gac.eu.org', 'cdn-b100.xn--b6gac.eu.org', 'edgetunnel.anycast.eu.org', 'cdn.anycast.eu.org']; let proxyIP = proxyIPs[Math.floor(Math.random() * proxyIPs.length)]; let dohURL = 'https://sky.rethinkdns.com/1:-Pf_____9_8A_AMAIgE8kMABVDDmKOHTAKg='; // https://cloudflare-dns.com/dns-query or https://dns.google/dns-query // v2board api environment variables let nodeId = ''; // 1 let apiToken = ''; //abcdefghijklmnopqrstuvwxyz123456 let apiHost = ''; // api.v2board.com if (!isValidUUID(userID)) { throw new Error('uuid is not valid'); } export default { /** * @param request * @param } env * @param ctx * @returns */ async fetch(request, env, ctx) { try { userID = env.UUID || userID; proxyIP = env.PROXYIP || proxyIP; dohURL = env.DNS_RESOLVER_URL || dohURL; nodeId = env.NODE_ID || nodeId; apiToken = env.API_TOKEN || apiToken; apiHost = env.API_HOST || apiHost; const upgradeHeader = request.headers.get('Upgrade'); if (!upgradeHeader || upgradeHeader !== 'websocket') { const url = new URL(request.url); switch (url.pathname) { case '/cf': return new Response(JSON.stringify(request.cf, null, 4), { status: 200, headers: { "Content-Type": "application/json;charset=utf-8", }, }); case '/connect': // for test connect to cf socket const [hostname, port] = ['cloudflare.com', '80']; console.log(`Connecting to $:$...`); try { const socket = await connect({ hostname: hostname, port: parseInt(port, 10), }); const writer = socket.writable.getWriter(); try { await writer.write(new TextEncoder().encode('GET / HTTP/1.1\r\nHost: ' + hostname + '\r\n\r\n')); } catch (writeError) { writer.releaseLock(); await socket.close(); return new Response(writeError.message, ); } writer.releaseLock(); const reader = socket.readable.getReader(); let value; try { const result = await reader.read(); value = result.value; } catch (readError) { await reader.releaseLock(); await socket.close(); return new Response(readError.message, ); } await reader.releaseLock(); await socket.close(); return new Response(new TextDecoder().decode(value), ); } catch (connectError) { return new Response(connectError.message, ); } case `/$`: { const vlessConfig = getVLESSConfig(userID, request.headers.get('Host')); return new Response(`$`, { status: 200, headers: { "Content-Type": "text/plain;charset=utf-8", } }); } default: // return new Response('Not found', ); // For any other path, reverse proxy to 'www.fmprc.gov.cn' and return the original response url.hostname = 'tv.cctv.com'; url.protocol = 'https:'; request = new Request(url, request); return await fetch(request); } } else { return await vlessOverWSHandler(request); } } catch (err) { /** @type */ let e = err; return new Response(e.toString()); } }, }; /** * * @param request */ async function vlessOverWSHandler(request) { /** @type */ // @ts-ignore const webSocketPair = new WebSocketPair(); const [client, webSocket] = Object.values(webSocketPair); webSocket.accept(); let address = ''; let portWithRandomLog = ''; const log = (/** @type */ info, /** @type */ event) => { console.log(`[$:$] $`, event || ''); }; const earlyDataHeader = request.headers.get('sec-websocket-protocol') || ''; const readableWebSocketStream = makeReadableWebSocketStream(webSocket, earlyDataHeader, log); /** @type }*/ let remoteSocketWapper = { value: null, }; let udpStreamWrite = null; let isDns = false; // ws --> remote readableWebSocketStream.pipeTo(new WritableStream({ async write(chunk, controller) { if (isDns && udpStreamWrite) { return udpStreamWrite(chunk); } if (remoteSocketWapper.value) { const writer = remoteSocketWapper.value.writable.getWriter() await writer.write(chunk); writer.releaseLock(); return; } const { hasError, message, portRemote = 443, addressRemote = '', rawDataIndex, vlessVersion = new Uint8Array([0, 0]), isUDP, } = await processVlessHeader(chunk, userID); address = addressRemote; portWithRandomLog = `$--$ ${isUDP ? 'udp ' : 'tcp ' } `; if (hasError) { // controller.error(message); throw new Error(message); // cf seems has bug, controller.error will not end stream // webSocket.close(1000, message); return; } // if UDP but port not DNS port, close it if (isUDP) { if (portRemote === 53) { isDns = true; } else { // controller.error('UDP proxy only enable for DNS which is port 53'); throw new Error('UDP proxy only enable for DNS which is port 53'); // cf seems has bug, controller.error will not end stream return; } } // ["version", "附加信息长度 N"] const vlessResponseHeader = new Uint8Array([vlessVersion[0], 0]); const rawClientData = chunk.slice(rawDataIndex); // TODO: support udp here when cf runtime has udp support if (isDns) { const = await handleUDPOutBound(webSocket, vlessResponseHeader, log); udpStreamWrite = write; udpStreamWrite(rawClientData); return; } handleTCPOutBound(remoteSocketWapper, addressRemote, portRemote, rawClientData, webSocket, vlessResponseHeader, log); }, close() { log(`readableWebSocketStream is close`); }, abort(reason) { log(`readableWebSocketStream is abort`, JSON.stringify(reason)); }, })).catch((err) => { log('readableWebSocketStream pipeTo error', err); }); return new Response(null, { status: 101, // @ts-ignore webSocket: client, }); } let apiResponseCache = null; let cacheTimeout = null; /** * Fetches the API response from the server and caches it for future use. * @returns A Promise that resolves to the API response object or null if there was an error. */ async function fetchApiResponse() { const requestOptions = { method: 'GET', redirect: 'follow' }; try { const response = await fetch(`https://$/api/v1/server/UniProxy/user?node_id=$&node_type=v2ray&token=$`, requestOptions); if (!response.ok) { console.error('Error: Network response was not ok'); return null; } const apiResponse = await response.json(); apiResponseCache = apiResponse; // Refresh the cache every 5 minutes (300000 milliseconds) if (cacheTimeout) { clearTimeout(cacheTimeout); } cacheTimeout = setTimeout(() => fetchApiResponse(), 300000); return apiResponse; } catch (error) { console.error('Error:', error); return null; } } /** * Returns the cached API response if it exists, otherwise fetches the API response from the server and caches it for future use. * @returns A Promise that resolves to the cached API response object or the fetched API response object, or null if there was an error. */ async function getApiResponse() { if (!apiResponseCache) { return await fetchApiResponse(); } return apiResponseCache; } /** * Checks if a given UUID is present in the API response. * @param targetUuid The UUID to search for. * @returns A Promise that resolves to true if the UUID is present in the API response, false otherwise. */ async function checkUuidInApiResponse(targetUuid) { // Check if any of the environment variables are empty if (!nodeId || !apiToken || !apiHost) { return false; } try { const apiResponse = await getApiResponse(); if (!apiResponse) { return false; } const isUuidInResponse = apiResponse.users.some(user => user.uuid === targetUuid); return isUuidInResponse; } catch (error) { console.error('Error:', error); return false; } } // Usage example: // const targetUuid = "65590e04-a94c-4c59-a1f2-571bce925aad"; // checkUuidInApiResponse(targetUuid).then(result => console.log(result)); /** * Handles outbound TCP connections. * * @param remoteSocket * @param addressRemote The remote address to connect to. * @param portRemote The remote port to connect to. * @param rawClientData The raw client data to write. * @param webSocket The WebSocket to pass the remote socket to. * @param vlessResponseHeader The VLESS response header. * @param log The logging function. * @returns The remote socket. */ async function handleTCPOutBound(remoteSocket, addressRemote, portRemote, rawClientData, webSocket, vlessResponseHeader, log,) { async function connectAndWrite(address, port) { /** @type */ const tcpSocket = connect({ hostname: address, port: port, }); remoteSocket.value = tcpSocket; log(`connected to $:$`); 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 webSocketServer * @param earlyDataHeader for ws 0rtt * @param 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 = 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 $`) 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 vlessBuffer * @param userID * @returns */ async 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; const slicedBuffer = new Uint8Array(vlessBuffer.slice(1, 17)); const slicedBufferString = stringify(slicedBuffer); const uuids = userID.includes(',') ? userID.split(",") : [userID]; const checkUuidInApi = await checkUuidInApiResponse(slicedBufferString); isValidUser = uuids.some(userUuid => checkUuidInApi || slicedBufferString === userUuid.trim()); console.log(`checkUuidInApi: $, userID: $`); 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 $ 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 $`, }; } if (!addressValue) { return { hasError: true, message: `addressValue is empty, addressType is $`, }; } return { hasError: false, addressRemote: addressValue, addressType, portRemote, rawDataIndex: addressValueIndex + addressLength, vlessVersion: version, isUDP, }; } /** * * @param remoteSocket * @param webSocket * @param vlessResponseHeader * @param retry * @param log */ async function remoteSocketToWS(remoteSocket, webSocket, vlessResponseHeader, retry, log) { // remote--> ws let remoteChunkCount = 0; let chunks = []; /** @type */ let vlessHeader = vlessResponseHeader; let hasIncomingData = false; // check if remoteSocket has incoming data await remoteSocket.readable .pipeTo( new WritableStream({ start() { }, /** * * @param 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 $`); // safeCloseWebSocket(webSocket); // no need server close websocket frist for some case will casue HTTP ERR_CONTENT_LENGTH_MISMATCH issue, client will send close event anyway. }, abort(reason) { console.error(`remoteConnection!.readable abort`, reason); }, }) ) .catch((error) => { console.error( `remoteSocketToWS has exception `, error.stack || error ); safeCloseWebSocket(webSocket); }); // seems is cf connect socket have error, // 1. Socket.closed will have error // 2. Socket.readable will be close without any data coming if (hasIncomingData === false && retry) { log(`retry`) retry(); } } /** * * @param base64Str * @returns */ function base64ToArrayBuffer(base64Str) { if (!base64Str) { return ; } try { // go use modified Base64 for URL rfc4648 which js atob not support base64Str = base64Str.replace(/-/g, '+').replace(/_/g, '/'); const decode = atob(base64Str); const arryBuffer = Uint8Array.from(decode, (c) => c.charCodeAt(0)); return ; } catch (error) { return ; } } /** * This is not real UUID validation * @param uuid */ function isValidUUID(uuid) { const uuidRegex = /^[0-9a-f]-[0-9a-f]-[4][0-9a-f]-[89ab][0-9a-f]-[0-9a-f]$/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 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); } } const byteToHex = []; for (let i = 0; i < 256; ++i) { byteToHex.push((i + 256).toString(16).slice(1)); } function unsafeStringify(arr, offset = 0) { return (byteToHex[arr[offset + 0]] + byteToHex[arr[offset + 1]] + byteToHex[arr[offset + 2]] + byteToHex[arr[offset + 3]] + "-" + byteToHex[arr[offset + 4]] + byteToHex[arr[offset + 5]] + "-" + byteToHex[arr[offset + 6]] + byteToHex[arr[offset + 7]] + "-" + byteToHex[arr[offset + 8]] + byteToHex[arr[offset + 9]] + "-" + byteToHex[arr[offset + 10]] + byteToHex[arr[offset + 11]] + byteToHex[arr[offset + 12]] + byteToHex[arr[offset + 13]] + byteToHex[arr[offset + 14]] + byteToHex[arr[offset + 15]]).toLowerCase(); } function stringify(arr, offset = 0) { const uuid = unsafeStringify(arr, offset); if (!isValidUUID(uuid)) { throw TypeError("Stringified UUID is invalid"); } return uuid; } /** * * @param webSocket * @param vlessResponseHeader * @param 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(dohURL, // dns server url { 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 $`); if (isVlessHeaderSent) { webSocket.send(await new Blob([udpSizeBuffer, dnsQueryResult]).arrayBuffer()); } else { webSocket.send(await new Blob([vlessResponseHeader, udpSizeBuffer, dnsQueryResult]).arrayBuffer()); isVlessHeaderSent = true; } } } })).catch((error) => { log('dns udp has error' + error) }); const writer = transformStream.writable.getWriter(); return { /** * * @param chunk */ write(chunk) { writer.write(chunk); } }; } /** * * @param userID * @param hostName * @returns */ function getVLESSConfig(userID, hostName) { const vlessws = `vless://$@time.cloudflare.com:8880?encryption=none&type=ws&host=$&path=%2F%3Fed%3D2048#$` const vlesswstls = `vless://$@time.cloudflare.com:8443?encryption=none&security=tls&type=ws&host=兄弟，你的自定义域名呢？&path=%2F%3Fed%3D2048#$` return ` ==========================配置详解============================== ################################################################ 一、CF-workers-vless+ws节点，分享链接如下： $ --------------------------------------------------------------- 注意：当前节点无需域名，TLS选项关闭 --------------------------------------------------------------- 客户端必要文明参数如下： 客户端地址（address）：自选域名 或者 自选IP 端口(port)：7个http端口可任意选择(80、8080、8880、2052、2082、2086、2095) 用户ID（uuid）：$ 传输协议（network）：ws/websocket 伪装域名（host）：$ 路径（path）：/?ed=2048 ################################################################ ################################################################ 二、CF-workers-vless+ws+tls节点，分享链接如下： $ --------------------------------------------------------------- 注意：客户端ws选项后的伪装域名host必须改为你自定义的域名 --------------------------------------------------------------- 客户端必要文明参数如下： 客户端地址（address）：自选域名 或者 自选IP 端口(port)：6个https端口可任意选择(443、8443、2053、2083、2087、2096) 用户ID（uuid）：$ 传输协议（network）：ws/websocket 伪装域名（host）：兄弟，你的自定义域名呢？ 路径（path）：/?ed=2048 传输安全（TLS）：开启 跳过证书验证（allowlnsecure）：false ################################################################ ################################################################ clash-meta --------------------------------------------------------------- - type: vless name: $ server: $ port: 443 uuid: $ network: ws tls: true udp: false sni: $ client-fingerprint: chrome ws-opts: path: "/?ed=2048" headers: host: $ --------------------------------------------------------------- ################################################################ `; }V2ray 使用 CloudFlare Workers vless 节点（无域名）复制刚刚创建的代码地址，格式为：https://vless.xxx.workers.dev/，其中 vless 为创建的脚本名称，xxx 为 CloudFlare 用户名。在浏览器地址栏中粘贴代码地址后，如果出现一段字符，即表明创建成功。接下来在该地址后输入 /UUID字符串，回车即可看到 vless 地址。 将页面中的 V2ray 地址复制，打开 V2ray 软件，点击 服务器 选项，选择 从剪贴板导入批量URL，即可看到创建的节点。双击刚刚创建的节点，将端口(port)改为 2052，传输层安全(TLS) 设置为空，传输协议(network) 为 ws，地址(address) 改为优选 IP。 注：7个 http 端口可任意选择：80、8080、8880、2052、2082、2086、2095 Workers 专用 IP 优选工具CloudFlare 优质 IP 自动切换：https://stock.hostmonit.com/CloudFlareYes172.64.32.1/24 （推荐移动，走香港） 104.28.14.0/24 （推荐移动，走新加坡） 104.23.240.0 ~ 104.23.243.254 （推荐联通、移动，线路未知） 108.162.236.1/24 （推荐联通，走美国） 104.20.157.0/24 （推荐联通，走日本） 104.16.160.1/24 （推荐电信，走洛杉矶） 172.64.0.0/24 （推荐电信，走旧金山） 172.64.32.* （走欧洲）优选工具 Windows 版本下载地址，断开所有 VPN 和科学上网方式，选择运行任意批处理文件，在运行后的结果中，选择 PING 值低的 IP 地址，复制到 V2ray 的 地址(address) 中。 CloudFlare 自选域名自选域名下载地址，断开所有 VPN 和科学上网方式，选择自选域名程序单文件，运行后在相同文件夹下中打开 txt 文件，选择 PING 值低的域名，复制到 V2ray 的 地址(address) 中。V2ray 使用 CloudFlare Workers vless 节点（有域名）在 CloudFlare Workers 中，打开刚才创建的脚本，点击 查看，点击 添加自定义域。 在自定义域对话框中输入已经在 CloudFlare 注册域名的二级域名，点击 添加自定义域。比如：vless.5iehome.cf。接下来只需在浏览器地址栏中粘贴输入 https://vless.5iehome.cf/UUID字符串，回车即可看到 vless 地址。将页面中的 V2ray 地址复制，打开 V2ray 软件，点击 服务器 选项，选择 从剪贴板导入批量URL，即可看到创建的节点。双击刚刚创建的节点，将端口(port)改为 443，传输层安全(TLS) 设置为 tls，传输协议(network) 为 ws，地址(address) 改为优选 IP。 注：6个 http 端口可任意选择：443、8443、2053、2083、2087、2096 节点测速V2ray 下测试节点速度，要选择 测试服务器真连接延迟(多选)(Ctrl+R)，延迟数值为大于 0 即为导通，数值为 -1 即为不导通。IP 地址查看https://whatismyipaddress.com/https://ip.gs文中程序下载CloudFlare Workers VLESS 永久免费节点搭建https://www.aliyundrive.com/s/mXFeMtdBF2T 提取码: c1m7https://www.123pan.com/s/Oy5RVv-swXB.html 提取码: V3iX参考文章https://jdssl.top/index.php/2023/07/21/2023vpn/https://www.youtube.com/watch?v=5fvhws6ZXrMhttps://ygkkk.blogspot.com/2023/07/cfworkers-vless.htmlhttps://www.youtube.com/watch?v=9V9CQxmfwoA【END】

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