减速CDN

众嗦粥汁,cloudflare在国内甚至亚太地区的访问速度都很慢
自从开了小黄云,我的网站就没快过
在登录cloudflare的时候总是转半小时

方法:以毒攻毒

我们只需要用cloudflare的workers搭建一个代理即可告诉访问cloudflare

  1. 打开Workers和Pages这个栏目,然后点击上面的创建按钮,即可,右侧的请求数量是可以看到你今天的请求量,最多 每天10W次 的数量,不过放心,很难用到10w的。

点击

  1. 点击创建后,标签栏目上选择Pages,然后点击上传资产。

  1. 接下来就是创建项目,填写项目名称,可以随意起,填写完成后,点击创建项目。

  1. 创建完项目后,即可上传项目资产,,然后编辑workers.js如文末
    5.之后根据https://github.com/cmliu/edgetunnel 仓库的内容设置UUID

import { connect } from 'cloudflare:sockets';
let userID = '';
let proxyIP = '';
let DNS64Server = '';
//let sub = '';
let subConverter = atob('U1VCQVBJLkNNTGl1c3Nzcy5uZXQ=');
let subConfig = atob('aHR0cHM6Ly9yYXcuZ2l0aHVidXNlcmNvbnRlbnQuY29tL0FDTDRTU1IvQUNMNFNTUi9tYXN0ZXIvQ2xhc2gvY29uZmlnL0FDTDRTU1JfT25saW5lX01pbmlfTXVsdGlNb2RlLmluaQ==');
let subProtocol = 'https';
let subEmoji = 'true';
let socks5Address = '';
let parsedSocks5Address = {};
let enableSocks = false;
let enableHttp = false;
let noTLS = 'false';
const expire = 4102329600;//2099-12-31
let proxyIPs;
let socks5s;
let go2Socks5s = [

'*ttvnw.net',
'*tapecontent.net',
'*cloudatacdn.com',
'*.loadshare.org',

];
let addresses = [];
let addressesapi = [];
let addressesnotls = [];
let addressesnotlsapi = [];
let addressescsv = [];
let DLS = 8;
let remarkIndex = 1;//CSV备注所在列偏移量
let FileName = atob('ZWRnZXR1bm5lbA==');
let BotToken;
let ChatID;
let proxyhosts = [];
let proxyhostsURL = '';
let RproxyIP = 'false';
const httpPorts = ["8080", "8880", "2052", "2082", "2086", "2095"];
let httpsPorts = ["2053", "2083", "2087", "2096", "8443"];
let 有效时间 = 7;
let 更新时间 = 3;
let userIDLow;
let userIDTime = "";
let proxyIPPool = [];
let path = '/?ed=2560';
let 动态UUID;
let link = [];
let banHosts = [atob('c3BlZWQuY2xvdWRmbGFyZS5jb20=')];
let SCV = 'true';
let allowInsecure = '&allowInsecure=1';
export default {

async fetch(request, env, ctx) {
    try {
        const UA = request.headers.get('User-Agent') || 'null';
        const userAgent = UA.toLowerCase();
        userID = env.UUID || env.uuid || env.PASSWORD || env.pswd || userID;
        if (env.KEY || env.TOKEN || (userID && !isValidUUID(userID))) {
            动态UUID = env.KEY || env.TOKEN || userID;
            有效时间 = Number(env.TIME) || 有效时间;
            更新时间 = Number(env.UPTIME) || 更新时间;
            const userIDs = await 生成动态UUID(动态UUID);
            userID = userIDs[0];
            userIDLow = userIDs[1];
        }

        if (!userID) {
            return new Response('请设置你的UUID变量,或尝试重试部署,检查变量是否生效?', {
                status: 404,
                headers: {
                    "Content-Type": "text/plain;charset=utf-8",
                }
            });
        }
        const currentDate = new Date();
        currentDate.setHours(0, 0, 0, 0);
        const timestamp = Math.ceil(currentDate.getTime() / 1000);
        const fakeUserIDMD5 = await 双重哈希(`${userID}${timestamp}`);
        const fakeUserID = [
            fakeUserIDMD5.slice(0, 8),
            fakeUserIDMD5.slice(8, 12),
            fakeUserIDMD5.slice(12, 16),
            fakeUserIDMD5.slice(16, 20),
            fakeUserIDMD5.slice(20)
        ].join('-');

        const fakeHostName = `${fakeUserIDMD5.slice(6, 9)}.${fakeUserIDMD5.slice(13, 19)}`;

        proxyIP = env.PROXYIP || env.proxyip || proxyIP;
        proxyIPs = await 整理(proxyIP);
        proxyIP = proxyIPs[Math.floor(Math.random() * proxyIPs.length)];
        DNS64Server = env.DNS64 || env.NAT64 || (DNS64Server != '' ? DNS64Server : atob("ZG5zNjQuY21saXVzc3NzLm5ldA=="));
        socks5Address = env.HTTP || env.SOCKS5 || socks5Address;
        socks5s = await 整理(socks5Address);
        socks5Address = socks5s[Math.floor(Math.random() * socks5s.length)];
        enableHttp = env.HTTP ? true : socks5Address.toLowerCase().includes('http://');
        socks5Address = socks5Address.split('//')[1] || socks5Address;
        if (env.GO2SOCKS5) go2Socks5s = await 整理(env.GO2SOCKS5);
        if (env.CFPORTS) httpsPorts = await 整理(env.CFPORTS);
        if (env.BAN) banHosts = await 整理(env.BAN);
        if (socks5Address) {
            try {
                parsedSocks5Address = socks5AddressParser(socks5Address);
                RproxyIP = env.RPROXYIP || 'false';
                enableSocks = true;
            } catch (err) {
                let e = err;
                console.log(e.toString());
                RproxyIP = env.RPROXYIP || !proxyIP ? 'true' : 'false';
                enableSocks = false;
            }
        } else {
            RproxyIP = env.RPROXYIP || !proxyIP ? 'true' : 'false';
        }

        const upgradeHeader = request.headers.get('Upgrade');
        const url = new URL(request.url);
        if (!upgradeHeader || upgradeHeader !== 'websocket') {
            if (env.ADD) addresses = await 整理(env.ADD);
            if (env.ADDAPI) addressesapi = await 整理(env.ADDAPI);
            if (env.ADDNOTLS) addressesnotls = await 整理(env.ADDNOTLS);
            if (env.ADDNOTLSAPI) addressesnotlsapi = await 整理(env.ADDNOTLSAPI);
            if (env.ADDCSV) addressescsv = await 整理(env.ADDCSV);
            DLS = Number(env.DLS) || DLS;
            remarkIndex = Number(env.CSVREMARK) || remarkIndex;
            BotToken = env.TGTOKEN || BotToken;
            ChatID = env.TGID || ChatID;
            FileName = env.SUBNAME || FileName;
            subEmoji = env.SUBEMOJI || env.EMOJI || subEmoji;
            if (subEmoji == '0') subEmoji = 'false';
            if (env.LINK) link = await 整理(env.LINK);
            let sub = env.SUB || '';
            subConverter = env.SUBAPI || subConverter;
            if (subConverter.includes("http://")) {
                subConverter = subConverter.split("//")[1];
                subProtocol = 'http';
            } else {
                subConverter = subConverter.split("//")[1] || subConverter;
            }
            subConfig = env.SUBCONFIG || subConfig;
            if (url.searchParams.has('sub') && url.searchParams.get('sub') !== '') sub = url.searchParams.get('sub').toLowerCase();
            if (url.searchParams.has('notls')) noTLS = 'true';

            if (url.searchParams.has('proxyip')) {
                path = `/proxyip=${url.searchParams.get('proxyip')}`;
                RproxyIP = 'false';
            } else if (url.searchParams.has('socks5')) {
                path = `/?socks5=${url.searchParams.get('socks5')}`;
                RproxyIP = 'false';
            } else if (url.searchParams.has('socks')) {
                path = `/?socks5=${url.searchParams.get('socks')}`;
                RproxyIP = 'false';
            }

            SCV = env.SCV || SCV;
            if (!SCV || SCV == '0' || SCV == 'false') allowInsecure = '';
            else SCV = 'true';
            const 路径 = url.pathname.toLowerCase();
            if (路径 == '/') {
                if (env.URL302) return Response.redirect(env.URL302, 302);
                else if (env.URL) return await 代理URL(env.URL, url);
                else return new Response(JSON.stringify(request.cf, null, 4), {
                    status: 200,
                    headers: {
                        'content-type': 'application/json',
                    },
                });
            } else if (路径 == `/${fakeUserID}`) {
                const fakeConfig = await 生成配置信息(userID, request.headers.get('Host'), sub, 'CF-Workers-SUB', RproxyIP, url, fakeUserID, fakeHostName, env);
                return new Response(`${fakeConfig}`, { status: 200 });
            } else if (url.pathname == `/${动态UUID}/edit` || 路径 == `/${userID}/edit`) {
                return await KV(request, env);
            } else if (url.pathname == `/${动态UUID}/bestip` || 路径 == `/${userID}/bestip`) {
                return await bestIP(request, env);
            } else if (url.pathname == `/${动态UUID}` || 路径 == `/${userID}`) {
                await sendMessage(`#获取订阅 ${FileName}`, request.headers.get('CF-Connecting-IP'), `UA: ${UA}</tg-spoiler>\n域名: ${url.hostname}\n<tg-spoiler>入口: ${url.pathname + url.search}</tg-spoiler>`);
                const 维列斯Config = await 生成配置信息(userID, request.headers.get('Host'), sub, UA, RproxyIP, url, fakeUserID, fakeHostName, env);
                const now = Date.now();
                //const timestamp = Math.floor(now / 1000);
                const today = new Date(now);
                today.setHours(0, 0, 0, 0);
                const UD = Math.floor(((now - today.getTime()) / 86400000) * 24 * 1099511627776 / 2);
                let pagesSum = UD;
                let workersSum = UD;
                let total = 24 * 1099511627776;
                if (env.CF_EMAIL && env.CF_APIKEY) {
                    const usage = await getUsage(env.CF_ID, env.CF_EMAIL, env.CF_APIKEY, env.CF_ALL);
                    pagesSum = usage[1];
                    workersSum = usage[2];
                    total = env.CF_ALL ? Number(env.CF_ALL) : (1024 * 100); // 100K
                }
                if (userAgent && userAgent.includes('mozilla')) {
                    return new Response(维列斯Config, {
                        status: 200,
                        headers: {
                            "Content-Type": "text/html;charset=utf-8",
                            "Profile-Update-Interval": "6",
                            "Subscription-Userinfo": `upload=${pagesSum}; download=${workersSum}; total=${total}; expire=${expire}`,
                            "Cache-Control": "no-store",
                        }
                    });
                } else {
                    return new Response(维列斯Config, {
                        status: 200,
                        headers: {
                            "Content-Disposition": `attachment; filename=${FileName}; filename*=utf-8''${encodeURIComponent(FileName)}`,
                            //"Content-Type": "text/plain;charset=utf-8",
                            "Profile-Update-Interval": "6",
                            "Profile-web-page-url": request.url.includes('?') ? request.url.split('?')[0] : request.url,
                            "Subscription-Userinfo": `upload=${pagesSum}; download=${workersSum}; total=${total}; expire=${expire}`,
                        }
                    });
                }
            } else {
                if (env.URL302) return Response.redirect(env.URL302, 302);
                else if (env.URL) return await 代理URL(env.URL, url);
                else return new Response('不用怀疑!你UUID就是错的!!!', { status: 404 });
            }
        } else {
            socks5Address = url.searchParams.get('socks5') || socks5Address;
            if (new RegExp('/socks5=', 'i').test(url.pathname)) socks5Address = url.pathname.split('5=')[1];
            else if (new RegExp('/socks://', 'i').test(url.pathname) || new RegExp('/socks5://', 'i').test(url.pathname) || new RegExp('/http://', 'i').test(url.pathname)) {
                enableHttp = url.pathname.includes('http://');
                socks5Address = url.pathname.split('://')[1].split('#')[0];
                if (socks5Address.includes('@')) {
                    const lastAtIndex = socks5Address.lastIndexOf('@');
                    let userPassword = socks5Address.substring(0, lastAtIndex).replaceAll('%3D', '=');
                    const base64Regex = /^(?:[A-Z0-9+/]{4})*(?:[A-Z0-9+/]{2}==|[A-Z0-9+/]{3}=)?$/i;
                    if (base64Regex.test(userPassword) && !userPassword.includes(':')) userPassword = atob(userPassword);
                    socks5Address = `${userPassword}@${socks5Address.substring(lastAtIndex + 1)}`;
                }
                go2Socks5s = ['all in'];//开启全局SOCKS5
            }

            if (socks5Address) {
                try {
                    parsedSocks5Address = socks5AddressParser(socks5Address);
                    enableSocks = true;
                } catch (err) {
                    let e = err;
                    console.log(e.toString());
                    enableSocks = false;
                }
            } else {
                enableSocks = false;
            }

            if (url.searchParams.has('proxyip')) {
                proxyIP = url.searchParams.get('proxyip');
                enableSocks = false;
            } else if (new RegExp('/proxyip=', 'i').test(url.pathname)) {
                proxyIP = url.pathname.toLowerCase().split('/proxyip=')[1];
                enableSocks = false;
            } else if (new RegExp('/proxyip.', 'i').test(url.pathname)) {
                proxyIP = `proxyip.${url.pathname.toLowerCase().split("/proxyip.")[1]}`;
                enableSocks = false;
            } else if (new RegExp('/pyip=', 'i').test(url.pathname)) {
                proxyIP = url.pathname.toLowerCase().split('/pyip=')[1];
                enableSocks = false;
            }

            return await 维列斯OverWSHandler(request);
        }
    } catch (err) {
        let e = err;
        return new Response(e.toString());
    }
},

};

async function 维列斯OverWSHandler(request) {

// @ts-ignore
const webSocketPair = new WebSocketPair();
const [client, webSocket] = Object.values(webSocketPair);

// 接受 WebSocket 连接
webSocket.accept();

let address = '';
let portWithRandomLog = '';
// 日志函数,用于记录连接信息
const log = (/** @type {string} */ info, /** @type {string | undefined} */ event) => {
    console.log(`[${address}:${portWithRandomLog}] ${info}`, event || '');
};
// 获取早期数据头部,可能包含了一些初始化数据
const earlyDataHeader = request.headers.get('sec-websocket-protocol') || '';

// 创建一个可读的 WebSocket 流,用于接收客户端数据
const readableWebSocketStream = makeReadableWebSocketStream(webSocket, earlyDataHeader, log);

// 用于存储远程 Socket 的包装器
let remoteSocketWapper = {
    value: null,
};
// 标记是否为 DNS 查询
let isDns = false;

// WebSocket 数据流向远程服务器的管道
readableWebSocketStream.pipeTo(new WritableStream({
    async write(chunk, controller) {
        if (isDns) {
            // 如果是 DNS 查询,调用 DNS 处理函数
            return await handleDNSQuery(chunk, webSocket, null, log);
        }
        if (remoteSocketWapper.value) {
            // 如果已有远程 Socket,直接写入数据
            const writer = remoteSocketWapper.value.writable.getWriter()
            await writer.write(chunk);
            writer.releaseLock();
            return;
        }

        // 处理 维列斯 协议头部
        const {
            hasError,
            message,
            addressType,
            portRemote = 443,
            addressRemote = '',
            rawDataIndex,
            维列斯Version = new Uint8Array([0, 0]),
            isUDP,
        } = process维列斯Header(chunk, userID);
        // 设置地址和端口信息,用于日志
        address = addressRemote;
        portWithRandomLog = `${portRemote}--${Math.random()} ${isUDP ? 'udp ' : 'tcp '} `;
        if (hasError) {
            // 如果有错误,抛出异常
            throw new Error(message);
            return;
        }
        // 如果是 UDP 且端口不是 DNS 端口(53),则关闭连接
        if (isUDP) {
            if (portRemote === 53) {
                isDns = true;
            } else {
                throw new Error('UDP 代理仅对 DNS(53 端口)启用');
                return;
            }
        }
        // 构建 维列斯 响应头部
        const 维列斯ResponseHeader = new Uint8Array([维列斯Version[0], 0]);
        // 获取实际的客户端数据
        const rawClientData = chunk.slice(rawDataIndex);

        if (isDns) {
            // 如果是 DNS 查询,调用 DNS 处理函数
            return handleDNSQuery(rawClientData, webSocket, 维列斯ResponseHeader, log);
        }
        // 处理 TCP 出站连接
        if (!banHosts.includes(addressRemote)) {
            log(`处理 TCP 出站连接 ${addressRemote}:${portRemote}`);
            handleTCPOutBound(remoteSocketWapper, addressType, addressRemote, portRemote, rawClientData, webSocket, 维列斯ResponseHeader, log);
        } else {
            throw new Error(`黑名单关闭 TCP 出站连接 ${addressRemote}:${portRemote}`);
        }
    },
    close() {
        log(`readableWebSocketStream 已关闭`);
    },
    abort(reason) {
        log(`readableWebSocketStream 已中止`, JSON.stringify(reason));
    },
})).catch((err) => {
    log('readableWebSocketStream 管道错误', err);
});

// 返回一个 WebSocket 升级的响应
return new Response(null, {
    status: 101,
    // @ts-ignore
    webSocket: client,
});

}

async function handleTCPOutBound(remoteSocket, addressType, addressRemote, portRemote, rawClientData, webSocket, 维列斯ResponseHeader, log,) {

async function useSocks5Pattern(address) {
    if (go2Socks5s.includes(atob('YWxsIGlu')) || go2Socks5s.includes(atob('Kg=='))) return true;
    return go2Socks5s.some(pattern => {
        let regexPattern = pattern.replace(/\*/g, '.*');
        let regex = new RegExp(`^${regexPattern}$`, 'i');
        return regex.test(address);
    });
}

async function connectAndWrite(address, port, socks = false, http = false) {
    log(`connected to ${address}:${port}`);
    //if (/^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?).){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/.test(address)) address = `${atob('d3d3Lg==')}${address}${atob('LmlwLjA5MDIyNy54eXo=')}`;
    // 先确定连接方式,再创建连接
    const tcpSocket = socks
        ? (http ? await httpConnect(address, port, log) : await socks5Connect(addressType, address, port, log))
        : connect({ hostname: address, port: port });

    remoteSocket.value = tcpSocket;
    //log(`connected to ${address}:${port}`);
    const writer = tcpSocket.writable.getWriter();
    // 首次写入,通常是 TLS 客户端 Hello 消息
    await writer.write(rawClientData);
    writer.releaseLock();
    return tcpSocket;
}

async function nat64() {
    if (!useSocks) {
        const nat64Proxyip = `[${await resolveToIPv6(addressRemote)}]`;
        log(`NAT64 代理连接到 ${nat64Proxyip}:443`);
        tcpSocket = await connectAndWrite(nat64Proxyip, '443');
    }
    tcpSocket.closed.catch(error => {
        console.log('retry tcpSocket closed error', error);
    }).finally(() => {
        safeCloseWebSocket(webSocket);
    })
    remoteSocketToWS(tcpSocket, webSocket, 维列斯ResponseHeader, null, log);
}

/**
 * 重试函数:当 Cloudflare 的 TCP Socket 没有传入数据时,我们尝试重定向 IP
 * 这可能是因为某些网络问题导致的连接失败
 */
async function retry() {
    if (enableSocks) {
        // 如果启用了 SOCKS5,通过 SOCKS5 代理重试连接
        tcpSocket = await connectAndWrite(addressRemote, portRemote, true, enableHttp);
    } else {
        // 否则,尝试使用预设的代理 IP(如果有)或原始地址重试连接
        if (!proxyIP || proxyIP == '') {
            proxyIP = atob('UFJPWFlJUC50cDEuMDkwMjI3Lnh5eg==');
        } else if (proxyIP.includes(']:')) {
            portRemote = proxyIP.split(']:')[1] || portRemote;
            proxyIP = proxyIP.split(']:')[0] + "]" || proxyIP;
        } else if (proxyIP.split(':').length === 2) {
            portRemote = proxyIP.split(':')[1] || portRemote;
            proxyIP = proxyIP.split(':')[0] || proxyIP;
        }
        if (proxyIP.includes('.tp')) portRemote = proxyIP.split('.tp')[1].split('.')[0] || portRemote;
        tcpSocket = await connectAndWrite(proxyIP.toLowerCase() || addressRemote, portRemote);
    }
    /* 无论重试是否成功,都要关闭 WebSocket(可能是为了重新建立连接)
    tcpSocket.closed.catch(error => {
        console.log('retry tcpSocket closed error', error);
    }).finally(() => {
        safeCloseWebSocket(webSocket);
    })
    */
    // 建立从远程 Socket 到 WebSocket 的数据流
    remoteSocketToWS(tcpSocket, webSocket, 维列斯ResponseHeader, nat64, log);
}

let useSocks = false;
if (go2Socks5s.length > 0 && enableSocks) useSocks = await useSocks5Pattern(addressRemote);
// 首次尝试连接远程服务器
let tcpSocket = await connectAndWrite(addressRemote, portRemote, useSocks, enableHttp);

// 当远程 Socket 就绪时,将其传递给 WebSocket
// 建立从远程服务器到 WebSocket 的数据流,用于将远程服务器的响应发送回客户端
// 如果连接失败或无数据,retry 函数将被调用进行重试
remoteSocketToWS(tcpSocket, webSocket, 维列斯ResponseHeader, retry, log);

}

function makeReadableWebSocketStream(webSocketServer, earlyDataHeader, log) {

// 标记可读流是否已被取消
let readableStreamCancel = false;

// 创建一个新的可读流
const stream = new ReadableStream({
    // 当流开始时的初始化函数
    start(controller) {
        // 监听 WebSocket 的消息事件
        webSocketServer.addEventListener('message', (event) => {
            // 如果流已被取消,不再处理新消息
            if (readableStreamCancel) {
                return;
            }
            const message = event.data;
            // 将消息加入流的队列中
            controller.enqueue(message);
        });

        // 监听 WebSocket 的关闭事件
        // 注意:这个事件意味着客户端关闭了客户端 -> 服务器的流
        // 但是,服务器 -> 客户端的流仍然打开,直到在服务器端调用 close()
        // WebSocket 协议要求在每个方向上都要发送单独的关闭消息,以完全关闭 Socket
        webSocketServer.addEventListener('close', () => {
            // 客户端发送了关闭信号,需要关闭服务器端
            safeCloseWebSocket(webSocketServer);
            // 如果流未被取消,则关闭控制器
            if (readableStreamCancel) {
                return;
            }
            controller.close();
        });

        // 监听 WebSocket 的错误事件
        webSocketServer.addEventListener('error', (err) => {
            log('WebSocket 服务器发生错误');
            // 将错误传递给控制器
            controller.error(err);
        });

        // 处理 WebSocket 0-RTT(零往返时间)的早期数据
        // 0-RTT 允许在完全建立连接之前发送数据,提高了效率
        const { earlyData, error } = base64ToArrayBuffer(earlyDataHeader);
        if (error) {
            // 如果解码早期数据时出错,将错误传递给控制器
            controller.error(error);
        } else if (earlyData) {
            // 如果有早期数据,将其加入流的队列中
            controller.enqueue(earlyData);
        }
    },

    // 当使用者从流中拉取数据时调用
    pull(controller) {
        // 这里可以实现反压机制
        // 如果 WebSocket 可以在流满时停止读取,我们就可以实现反压
        // 参考:https://streams.spec.whatwg.org/#example-rs-push-backpressure
    },

    // 当流被取消时调用
    cancel(reason) {
        // 流被取消的几种情况:
        // 1. 当管道的 WritableStream 有错误时,这个取消函数会被调用,所以在这里处理 WebSocket 服务器的关闭
        // 2. 如果 ReadableStream 被取消,所有 controller.close/enqueue 都需要跳过
        // 3. 但是经过测试,即使 ReadableStream 被取消,controller.error 仍然有效
        if (readableStreamCancel) {
            return;
        }
        log(`可读流被取消,原因是 ${reason}`);
        readableStreamCancel = true;
        // 安全地关闭 WebSocket
        safeCloseWebSocket(webSocketServer);
    }
});

return stream;

}

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

/**

  • 解析 维列斯 协议的头部数据
  • @param { ArrayBuffer} 维列斯Buffer 维列斯 协议的原始头部数据
  • @param {string} userID 用于验证的用户 ID
  • @returns {Object} 解析结果,包括是否有错误、错误信息、远程地址信息等
    */

function process维列斯Header(维列斯Buffer, userID) {

// 检查数据长度是否足够(至少需要 24 字节)
if (维列斯Buffer.byteLength < 24) {
    return {
        hasError: true,
        message: 'invalid data',
    };
}

// 解析 维列斯 协议版本(第一个字节)
const version = new Uint8Array(维列斯Buffer.slice(0, 1));

let isValidUser = false;
let isUDP = false;

// 验证用户 ID(接下来的 16 个字节)
function isUserIDValid(userID, userIDLow, buffer) {
    const userIDArray = new Uint8Array(buffer.slice(1, 17));
    const userIDString = stringify(userIDArray);
    return userIDString === userID || userIDString === userIDLow;
}

// 使用函数验证
isValidUser = isUserIDValid(userID, userIDLow, 维列斯Buffer);

// 如果用户 ID 无效,返回错误
if (!isValidUser) {
    return {
        hasError: true,
        message: `invalid user ${(new Uint8Array(维列斯Buffer.slice(1, 17)))}`,
    };
}

// 获取附加选项的长度(第 17 个字节)
const optLength = new Uint8Array(维列斯Buffer.slice(17, 18))[0];
// 暂时跳过附加选项

// 解析命令(紧跟在选项之后的 1 个字节)
// 0x01: TCP, 0x02: UDP, 0x03: MUX(多路复用)
const command = new Uint8Array(
    维列斯Buffer.slice(18 + optLength, 18 + optLength + 1)
)[0];

// 0x01 TCP
// 0x02 UDP
// 0x03 MUX
if (command === 1) {
    // TCP 命令,不需特殊处理
} else if (command === 2) {
    // UDP 命令
    isUDP = true;
} else {
    // 不支持的命令
    return {
        hasError: true,
        message: `command ${command} is not support, command 01-tcp,02-udp,03-mux`,
    };
}

// 解析远程端口(大端序,2 字节)
const portIndex = 18 + optLength + 1;
const portBuffer = 维列斯Buffer.slice(portIndex, portIndex + 2);
// port is big-Endian in raw data etc 80 == 0x005d
const portRemote = new DataView(portBuffer).getUint16(0);

// 解析地址类型和地址
let addressIndex = portIndex + 2;
const addressBuffer = new Uint8Array(
    维列斯Buffer.slice(addressIndex, addressIndex + 1)
);

// 地址类型:1-IPv4(4字节), 2-域名(可变长), 3-IPv6(16字节)
const addressType = addressBuffer[0];
let addressLength = 0;
let addressValueIndex = addressIndex + 1;
let addressValue = '';

switch (addressType) {
    case 1:
        // IPv4 地址
        addressLength = 4;
        // 将 4 个字节转为点分十进制格式
        addressValue = new Uint8Array(
            维列斯Buffer.slice(addressValueIndex, addressValueIndex + addressLength)
        ).join('.');
        break;
    case 2:
        // 域名
        // 第一个字节是域名长度
        addressLength = new Uint8Array(
            维列斯Buffer.slice(addressValueIndex, addressValueIndex + 1)
        )[0];
        addressValueIndex += 1;
        // 解码域名
        addressValue = new TextDecoder().decode(
            维列斯Buffer.slice(addressValueIndex, addressValueIndex + addressLength)
        );
        break;
    case 3:
        // IPv6 地址
        addressLength = 16;
        const dataView = new DataView(
            维列斯Buffer.slice(addressValueIndex, addressValueIndex + addressLength)
        );
        // 每 2 字节构成 IPv6 地址的一部分
        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:
        // 无效的地址类型
        return {
            hasError: true,
            message: `invild addressType is ${addressType}`,
        };
}

// 确保地址不为空
if (!addressValue) {
    return {
        hasError: true,
        message: `addressValue is empty, addressType is ${addressType}`,
    };
}

// 返回解析结果
return {
    hasError: false,
    addressRemote: addressValue,  // 解析后的远程地址
    addressType,                 // 地址类型
    portRemote,                 // 远程端口
    rawDataIndex: addressValueIndex + addressLength,  // 原始数据的实际起始位置
    维列斯Version: version,      // 维列斯 协议版本
    isUDP,                     // 是否是 UDP 请求
};

}

async function remoteSocketToWS(remoteSocket, webSocket, 维列斯ResponseHeader, retry, log) {

// 将数据从远程服务器转发到 WebSocket
let remoteChunkCount = 0;
let chunks = [];
/** @type {ArrayBuffer | null} */
let 维列斯Header = 维列斯ResponseHeader;
let hasIncomingData = false; // 检查远程 Socket 是否有传入数据

// 使用管道将远程 Socket 的可读流连接到一个可写流
await remoteSocket.readable
    .pipeTo(
        new WritableStream({
            start() {
                // 初始化时不需要任何操作
            },
            /**
             * 处理每个数据块
             * @param {Uint8Array} chunk 数据块
             * @param {*} controller 控制器
             */
            async write(chunk, controller) {
                hasIncomingData = true; // 标记已收到数据
                // remoteChunkCount++; // 用于流量控制,现在似乎不需要了

                // 检查 WebSocket 是否处于开放状态
                if (webSocket.readyState !== WS_READY_STATE_OPEN) {
                    controller.error(
                        'webSocket.readyState is not open, maybe close'
                    );
                }

                if (维列斯Header) {
                    // 如果有 维列斯 响应头部,将其与第一个数据块一起发送
                    webSocket.send(await new Blob([维列斯Header, chunk]).arrayBuffer());
                    维列斯Header = null; // 清空头部,之后不再发送
                } else {
                    // 直接发送数据块
                    // 以前这里有流量控制代码,限制大量数据的发送速率
                    // 但现在 Cloudflare 似乎已经修复了这个问题
                    // if (remoteChunkCount > 20000) {
                    //     // cf one package is 4096 byte(4kb),  4096 * 20000 = 80M
                    //     await delay(1);
                    // }
                    webSocket.send(chunk);
                }
            },
            close() {
                // 当远程连接的可读流关闭时
                log(`remoteConnection!.readable is close with hasIncomingData is ${hasIncomingData}`);
                // 不需要主动关闭 WebSocket,因为这可能导致 HTTP ERR_CONTENT_LENGTH_MISMATCH 问题
                // 客户端无论如何都会发送关闭事件
                // safeCloseWebSocket(webSocket);
            },
            abort(reason) {
                // 当远程连接的可读流中断时
                console.error(`remoteConnection!.readable abort`, reason);
            },
        })
    )
    .catch((error) => {
        // 捕获并记录任何异常
        console.error(
            `remoteSocketToWS has exception `,
            error.stack || error
        );
        // 发生错误时安全地关闭 WebSocket
        safeCloseWebSocket(webSocket);
    });

// 处理 Cloudflare 连接 Socket 的特殊错误情况
// 1. Socket.closed 将有错误
// 2. Socket.readable 将关闭,但没有任何数据
if (hasIncomingData === false && retry) {
    log(`retry`);
    retry(); // 调用重试函数,尝试重新建立连接
}

}

/**

  • 将 Base64 编码的字符串转换为 ArrayBuffer
  • @param {string} base64Str Base64 编码的输入字符串
  • @returns {{ earlyData: ArrayBuffer | undefined, error: Error | null }} 返回解码后的 ArrayBuffer 或错误
    */

function base64ToArrayBuffer(base64Str) {

// 如果输入为空,直接返回空结果
if (!base64Str) {
    return { earlyData: undefined, error: null };
}
try {
    // Go 语言使用了 URL 安全的 Base64 变体(RFC 4648)
    // 这种变体使用 '-' 和 '_' 来代替标准 Base64 中的 '+' 和 '/'
    // JavaScript 的 atob 函数不直接支持这种变体,所以我们需要先转换
    base64Str = base64Str.replace(/-/g, '+').replace(/_/g, '/');

    // 使用 atob 函数解码 Base64 字符串
    // atob 将 Base64 编码的 ASCII 字符串转换为原始的二进制字符串
    const decode = atob(base64Str);

    // 将二进制字符串转换为 Uint8Array
    // 这是通过遍历字符串中的每个字符并获取其 Unicode 编码值(0-255)来完成的
    const arryBuffer = Uint8Array.from(decode, (c) => c.charCodeAt(0));

    // 返回 Uint8Array 的底层 ArrayBuffer
    // 这是实际的二进制数据,可以用于网络传输或其他二进制操作
    return { earlyData: arryBuffer.buffer, error: null };
} catch (error) {
    // 如果在任何步骤中出现错误(如非法 Base64 字符),则返回错误
    return { earlyData: undefined, error };
}

}

/**

  • 这不是真正的 UUID 验证,而是一个简化的版本
  • @param {string} uuid 要验证的 UUID 字符串
  • @returns {boolean} 如果字符串匹配 UUID 格式则返回 true,否则返回 false
    */

function isValidUUID(uuid) {

// 定义一个正则表达式来匹配 UUID 格式
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;

// 使用正则表达式测试 UUID 字符串
return uuidRegex.test(uuid);

}

// WebSocket 的两个重要状态常量
const WS_READY_STATE_OPEN = 1; // WebSocket 处于开放状态,可以发送和接收消息
const WS_READY_STATE_CLOSING = 2; // WebSocket 正在关闭过程中

function safeCloseWebSocket(socket) {

try {
    // 只有在 WebSocket 处于开放或正在关闭状态时才调用 close()
    // 这避免了在已关闭或连接中的 WebSocket 上调用 close()
    if (socket.readyState === WS_READY_STATE_OPEN || socket.readyState === WS_READY_STATE_CLOSING) {
        socket.close();
    }
} catch (error) {
    // 记录任何可能发生的错误,虽然按照规范不应该有错误
    console.error('safeCloseWebSocket error', error);
}

}

// 预计算 0-255 每个字节的十六进制表示
const byteToHex = [];
for (let i = 0; i < 256; ++i) {

// (i + 256).toString(16) 确保总是得到两位数的十六进制
// .slice(1) 删除前导的 "1",只保留两位十六进制数
byteToHex.push((i + 256).toString(16).slice(1));

}

/**

  • 快速地将字节数组转换为 UUID 字符串,不进行有效性检查
  • 这是一个底层函数,直接操作字节,不做任何验证
  • @param {Uint8Array} arr 包含 UUID 字节的数组
  • @param {number} offset 数组中 UUID 开始的位置,默认为 0
  • @returns {string} UUID 字符串
    */

function unsafeStringify(arr, offset = 0) {

// 直接从查找表中获取每个字节的十六进制表示,并拼接成 UUID 格式
// 8-4-4-4-12 的分组是通过精心放置的连字符 "-" 实现的
// toLowerCase() 确保整个 UUID 是小写的
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();

}

/**

  • 将字节数组转换为 UUID 字符串,并验证其有效性
  • 这是一个安全的函数,它确保返回的 UUID 格式正确
  • @param {Uint8Array} arr 包含 UUID 字节的数组
  • @param {number} offset 数组中 UUID 开始的位置,默认为 0
  • @returns {string} 有效的 UUID 字符串
  • @throws {TypeError} 如果生成的 UUID 字符串无效
    */

function stringify(arr, offset = 0) {

// 使用不安全的函数快速生成 UUID 字符串
const uuid = unsafeStringify(arr, offset);
// 验证生成的 UUID 是否有效
if (!isValidUUID(uuid)) {
    // 原:throw TypeError("Stringified UUID is invalid");
    throw TypeError(`生成的 UUID 不符合规范 ${uuid}`);
    //uuid = userID;
}
return uuid;

}

/**

  • 处理 DNS 查询的函数
  • @param {ArrayBuffer} udpChunk - 客户端发送的 DNS 查询数据
  • @param {ArrayBuffer} 维列斯ResponseHeader - 维列斯 协议的响应头部数据
  • @param {(string)=> void} log - 日志记录函数
    */

async function handleDNSQuery(udpChunk, webSocket, 维列斯ResponseHeader, log) {

// 无论客户端发送到哪个 DNS 服务器,我们总是使用硬编码的服务器
// 因为有些 DNS 服务器不支持 DNS over TCP
try {
    // 选用 Google 的 DNS 服务器(注:后续可能会改为 Cloudflare 的 1.1.1.1)
    const dnsServer = '8.8.4.4'; // 在 Cloudflare 修复连接自身 IP 的 bug 后,将改为 1.1.1.1
    const dnsPort = 53; // DNS 服务的标准端口

    let 维列斯Header = 维列斯ResponseHeader; // 保存 维列斯 响应头部,用于后续发送

    // 与指定的 DNS 服务器建立 TCP 连接
    const tcpSocket = connect({
        hostname: dnsServer,
        port: dnsPort,
    });

    log(`连接到 ${dnsServer}:${dnsPort}`); // 记录连接信息
    const writer = tcpSocket.writable.getWriter();
    await writer.write(udpChunk); // 将客户端的 DNS 查询数据发送给 DNS 服务器
    writer.releaseLock(); // 释放写入器,允许其他部分使用

    // 将从 DNS 服务器接收到的响应数据通过 WebSocket 发送回客户端
    await tcpSocket.readable.pipeTo(new WritableStream({
        async write(chunk) {
            if (webSocket.readyState === WS_READY_STATE_OPEN) {
                if (维列斯Header) {
                    // 如果有 维列斯 头部,则将其与 DNS 响应数据合并后发送
                    webSocket.send(await new Blob([维列斯Header, chunk]).arrayBuffer());
                    维列斯Header = null; // 头部只发送一次,之后置为 null
                } else {
                    // 否则直接发送 DNS 响应数据
                    webSocket.send(chunk);
                }
            }
        },
        close() {
            log(`DNS 服务器(${dnsServer}) TCP 连接已关闭`); // 记录连接关闭信息
        },
        abort(reason) {
            console.error(`DNS 服务器(${dnsServer}) TCP 连接异常中断`, reason); // 记录异常中断原因
        },
    }));
} catch (error) {
    // 捕获并记录任何可能发生的错误
    console.error(
        `handleDNSQuery 函数发生异常,错误信息: ${error.message}`
    );
}

}

/**

  • 建立 SOCKS5 代理连接
  • @param {number} addressType 目标地址类型(1: IPv4, 2: 域名, 3: IPv6)
  • @param {string} addressRemote 目标地址(可以是 IP 或域名)
  • @param {number} portRemote 目标端口
  • @param {function} log 日志记录函数
    */

async function socks5Connect(addressType, addressRemote, portRemote, log) {

const { username, password, hostname, port } = parsedSocks5Address;
// 连接到 SOCKS5 代理服务器
const socket = connect({
    hostname, // SOCKS5 服务器的主机名
    port,    // SOCKS5 服务器的端口
});

// 请求头格式(Worker -> SOCKS5 服务器):
// +----+----------+----------+
// |VER | NMETHODS | METHODS  |
// +----+----------+----------+
// | 1  |    1     | 1 to 255 |
// +----+----------+----------+

// https://en.wikipedia.org/wiki/SOCKS#SOCKS5
// METHODS 字段的含义:
// 0x00 不需要认证
// 0x02 用户名/密码认证 https://datatracker.ietf.org/doc/html/rfc1929
const socksGreeting = new Uint8Array([5, 2, 0, 2]);
// 5: SOCKS5 版本号, 2: 支持的认证方法数, 0和2: 两种认证方法(无认证和用户名/密码)

const writer = socket.writable.getWriter();

await writer.write(socksGreeting);
log('已发送 SOCKS5 问候消息');

const reader = socket.readable.getReader();
const encoder = new TextEncoder();
let res = (await reader.read()).value;
// 响应格式(SOCKS5 服务器 -> Worker):
// +----+--------+
// |VER | METHOD |
// +----+--------+
// | 1  |   1    |
// +----+--------+
if (res[0] !== 0x05) {
    log(`SOCKS5 服务器版本错误: 收到 ${res[0]},期望是 5`);
    return;
}
if (res[1] === 0xff) {
    log("服务器不接受任何认证方法");
    return;
}

// 如果返回 0x0502,表示需要用户名/密码认证
if (res[1] === 0x02) {
    log("SOCKS5 服务器需要认证");
    if (!username || !password) {
        log("请提供用户名和密码");
        return;
    }
    // 认证请求格式:
    // +----+------+----------+------+----------+
    // |VER | ULEN |  UNAME   | PLEN |  PASSWD  |
    // +----+------+----------+------+----------+
    // | 1  |  1   | 1 to 255 |  1   | 1 to 255 |
    // +----+------+----------+------+----------+
    const authRequest = new Uint8Array([
        1,                   // 认证子协议版本
        username.length,    // 用户名长度
        ...encoder.encode(username), // 用户名
        password.length,    // 密码长度
        ...encoder.encode(password)  // 密码
    ]);
    await writer.write(authRequest);
    res = (await reader.read()).value;
    // 期望返回 0x0100 表示认证成功
    if (res[0] !== 0x01 || res[1] !== 0x00) {
        log("SOCKS5 服务器认证失败");
        return;
    }
}

// 请求数据格式(Worker -> SOCKS5 服务器):
// +----+-----+-------+------+----------+----------+
// |VER | CMD |  RSV  | ATYP | DST.ADDR | DST.PORT |
// +----+-----+-------+------+----------+----------+
// | 1  |  1  | X'00' |  1   | Variable |    2     |
// +----+-----+-------+------+----------+----------+
// ATYP: 地址类型
// 0x01: IPv4 地址
// 0x03: 域名
// 0x04: IPv6 地址
// DST.ADDR: 目标地址
// DST.PORT: 目标端口(网络字节序)

// addressType
// 1 --> IPv4  地址长度 = 4
// 2 --> 域名
// 3 --> IPv6  地址长度 = 16
let DSTADDR;    // DSTADDR = ATYP + DST.ADDR
switch (addressType) {
    case 1: // IPv4
        DSTADDR = new Uint8Array(
            [1, ...addressRemote.split('.').map(Number)]
        );
        break;
    case 2: // 域名
        DSTADDR = new Uint8Array(
            [3, addressRemote.length, ...encoder.encode(addressRemote)]
        );
        break;
    case 3: // IPv6
        DSTADDR = new Uint8Array(
            [4, ...addressRemote.split(':').flatMap(x => [parseInt(x.slice(0, 2), 16), parseInt(x.slice(2), 16)])]
        );
        break;
    default:
        log(`无效的地址类型: ${addressType}`);
        return;
}
const socksRequest = new Uint8Array([5, 1, 0, ...DSTADDR, portRemote >> 8, portRemote & 0xff]);
// 5: SOCKS5版本, 1: 表示CONNECT请求, 0: 保留字段
// ...DSTADDR: 目标地址, portRemote >> 8 和 & 0xff: 将端口转为网络字节序
await writer.write(socksRequest);
log('已发送 SOCKS5 请求');

res = (await reader.read()).value;
// 响应格式(SOCKS5 服务器 -> Worker):
//  +----+-----+-------+------+----------+----------+
// |VER | REP |  RSV  | ATYP | BND.ADDR | BND.PORT |
// +----+-----+-------+------+----------+----------+
// | 1  |  1  | X'00' |  1   | Variable |    2     |
// +----+-----+-------+------+----------+----------+
if (res[1] === 0x00) {
    log("SOCKS5 连接已建立");
} else {
    log("SOCKS5 连接建立失败");
    return;
}
writer.releaseLock();
reader.releaseLock();
return socket;

}

/**

  • 建立 HTTP 代理连接
  • @param {string} addressRemote 目标地址(可以是 IP 或域名)
  • @param {number} portRemote 目标端口
  • @param {function} log 日志记录函数
    */

async function httpConnect(addressRemote, portRemote, log) {

const { username, password, hostname, port } = parsedSocks5Address;
const sock = await connect({
    hostname: hostname,
    port: port
});

// 构建HTTP CONNECT请求
let connectRequest = `CONNECT ${addressRemote}:${portRemote} HTTP/1.1\r\n`;
connectRequest += `Host: ${addressRemote}:${portRemote}\r\n`;

// 添加代理认证(如果需要)
if (username && password) {
    const authString = `${username}:${password}`;
    const base64Auth = btoa(authString);
    connectRequest += `Proxy-Authorization: Basic ${base64Auth}\r\n`;
}

connectRequest += `User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36\r\n`;
connectRequest += `Proxy-Connection: Keep-Alive\r\n`;
connectRequest += `Connection: Keep-Alive\r\n`; // 添加标准 Connection 头
connectRequest += `\r\n`;

log(`正在连接到 ${addressRemote}:${portRemote} 通过代理 ${hostname}:${port}`);

try {
    // 发送连接请求
    const writer = sock.writable.getWriter();
    await writer.write(new TextEncoder().encode(connectRequest));
    writer.releaseLock();
} catch (err) {
    console.error('发送HTTP CONNECT请求失败:', err);
    throw new Error(`发送HTTP CONNECT请求失败: ${err.message}`);
}

// 读取HTTP响应
const reader = sock.readable.getReader();
let respText = '';
let connected = false;
let responseBuffer = new Uint8Array(0);

try {
    while (true) {
        const { value, done } = await reader.read();
        if (done) {
            console.error('HTTP代理连接中断');
            throw new Error('HTTP代理连接中断');
        }

        // 合并接收到的数据
        const newBuffer = new Uint8Array(responseBuffer.length + value.length);
        newBuffer.set(responseBuffer);
        newBuffer.set(value, responseBuffer.length);
        responseBuffer = newBuffer;

        // 将收到的数据转换为文本
        respText = new TextDecoder().decode(responseBuffer);

        // 检查是否收到完整的HTTP响应头
        if (respText.includes('\r\n\r\n')) {
            // 分离HTTP头和可能的数据部分
            const headersEndPos = respText.indexOf('\r\n\r\n') + 4;
            const headers = respText.substring(0, headersEndPos);

            log(`收到HTTP代理响应: ${headers.split('\r\n')[0]}`);

            // 检查响应状态
            if (headers.startsWith('HTTP/1.1 200') || headers.startsWith('HTTP/1.0 200')) {
                connected = true;

                // 如果响应头之后还有数据,我们需要保存这些数据以便后续处理
                if (headersEndPos < responseBuffer.length) {
                    const remainingData = responseBuffer.slice(headersEndPos);
                    // 创建一个缓冲区来存储这些数据,以便稍后使用
                    const dataStream = new ReadableStream({
                        start(controller) {
                            controller.enqueue(remainingData);
                        }
                    });

                    // 创建一个新的TransformStream来处理额外数据
                    const { readable, writable } = new TransformStream();
                    dataStream.pipeTo(writable).catch(err => console.error('处理剩余数据错误:', err));

                    // 替换原始readable流
                    // @ts-ignore
                    sock.readable = readable;
                }
            } else {
                const errorMsg = `HTTP代理连接失败: ${headers.split('\r\n')[0]}`;
                console.error(errorMsg);
                throw new Error(errorMsg);
            }
            break;
        }
    }
} catch (err) {
    reader.releaseLock();
    throw new Error(`处理HTTP代理响应失败: ${err.message}`);
}

reader.releaseLock();

if (!connected) {
    throw new Error('HTTP代理连接失败: 未收到成功响应');
}

log(`HTTP代理连接成功: ${addressRemote}:${portRemote}`);
return sock;

}

/**

  • SOCKS5 代理地址解析器
  • 此函数用于解析 SOCKS5 代理地址字符串,提取出用户名、密码、主机名和端口号
  • @param {string} address SOCKS5 代理地址,格式可以是:
    • "username:password@hostname:port" (带认证)
    • "hostname:port" (不需认证)
    • "username:password@[ipv6]:port" (IPv6 地址需要用方括号括起来)
      */

function socks5AddressParser(address) {

// 使用 "@" 分割地址,分为认证部分和服务器地址部分
const lastAtIndex = address.lastIndexOf("@");
let [latter, former] = lastAtIndex === -1 ? [address, undefined] : [address.substring(lastAtIndex + 1), address.substring(0, lastAtIndex)];
let username, password, hostname, port;

// 如果存在 former 部分,说明提供了认证信息
if (former) {
    const formers = former.split(":");
    if (formers.length !== 2) {
        throw new Error('无效的 SOCKS 地址格式:认证部分必须是 "username:password" 的形式');
    }
    [username, password] = formers;
}

// 解析服务器地址部分
const latters = latter.split(":");
// 检查是否是IPv6地址带端口格式 [xxx]:port
if (latters.length > 2 && latter.includes("]:")) {
    // IPv6地址带端口格式:[2001:db8::1]:8080
    port = Number(latter.split("]:")[1].replace(/[^\d]/g, ''));
    hostname = latter.split("]:")[0] + "]"; // 正确提取hostname部分
} else if (latters.length === 2) {
    // IPv4地址带端口或域名带端口
    port = Number(latters.pop().replace(/[^\d]/g, ''));
    hostname = latters.join(":");
} else {
    port = 80;
    hostname = latter;
}

if (isNaN(port)) {
    throw new Error('无效的 SOCKS 地址格式:端口号必须是数字');
}

// 处理 IPv6 地址的特殊情况
// IPv6 地址包含多个冒号,所以必须用方括号括起来,如 [2001:db8::1]
const regex = /^\[.*\]$/;
if (hostname.includes(":") && !regex.test(hostname)) {
    throw new Error('无效的 SOCKS 地址格式:IPv6 地址必须用方括号括起来,如 [2001:db8::1]');
}

//if (/^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?).){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/.test(hostname)) hostname = `${atob('d3d3Lg==')}${hostname}${atob('LmlwLjA5MDIyNy54eXo=')}`;
// 返回解析后的结果
return {
    username,  // 用户名,如果没有则为 undefined
    password,  // 密码,如果没有则为 undefined
    hostname,  // 主机名,可以是域名、IPv4 或 IPv6 地址
    port,     // 端口号,已转换为数字类型
}

}

/**

  • 恢复被伪装的信息
  • 这个函数用于将内容中的假用户ID和假主机名替换回真实的值
  • @param {string} content 需要处理的内容
  • @param {string} userID 真实的用户ID
  • @param {string} hostName 真实的主机名
  • @param {boolean} isBase64 内容是否是Base64编码的
  • @returns {string} 恢复真实信息后的内容
    */

function 恢复伪装信息(content, userID, hostName, fakeUserID, fakeHostName, isBase64) {

if (isBase64) content = atob(content);  // 如果内容是Base64编码的,先解码

// 使用正则表达式全局替换('g'标志)
// 将所有出现的假用户ID和假主机名替换为真实的值
content = content.replace(new RegExp(fakeUserID, 'g'), userID)
    .replace(new RegExp(fakeHostName, 'g'), hostName);

if (isBase64) content = btoa(content);  // 如果原内容是Base64编码的,处理完后再次编码

return content;

}

/**

  • 双重MD5哈希函数
  • 这个函数对输入文本进行两次MD5哈希,增强安全性
  • 第二次哈希使用第一次哈希结果的一部分作为输入
  • @param {string} 文本 要哈希的文本
  • @returns {Promise} 双重哈希后的小写十六进制字符串
    */

async function 双重哈希(文本) {

const 编码器 = new TextEncoder();

const 第一次哈希 = await crypto.subtle.digest('MD5', 编码器.encode(文本));
const 第一次哈希数组 = Array.from(new Uint8Array(第一次哈希));
const 第一次十六进制 = 第一次哈希数组.map(字节 => 字节.toString(16).padStart(2, '0')).join('');

const 第二次哈希 = await crypto.subtle.digest('MD5', 编码器.encode(第一次十六进制.slice(7, 27)));
const 第二次哈希数组 = Array.from(new Uint8Array(第二次哈希));
const 第二次十六进制 = 第二次哈希数组.map(字节 => 字节.toString(16).padStart(2, '0')).join('');

return 第二次十六进制.toLowerCase();

}

async function 代理URL(代理网址, 目标网址) {

const 网址列表 = await 整理(代理网址);
const 完整网址 = 网址列表[Math.floor(Math.random() * 网址列表.length)];

// 解析目标 URL
let 解析后的网址 = new URL(完整网址);
console.log(解析后的网址);
// 提取并可能修改 URL 组件
let 协议 = 解析后的网址.protocol.slice(0, -1) || 'https';
let 主机名 = 解析后的网址.hostname;
let 路径名 = 解析后的网址.pathname;
let 查询参数 = 解析后的网址.search;

// 处理路径名
if (路径名.charAt(路径名.length - 1) == '/') {
    路径名 = 路径名.slice(0, -1);
}
路径名 += 目标网址.pathname;

// 构建新的 URL
let 新网址 = `${协议}://${主机名}${路径名}${查询参数}`;

// 反向代理请求
let 响应 = await fetch(新网址);

// 创建新的响应
let 新响应 = new Response(响应.body, {
    status: 响应.status,
    statusText: 响应.statusText,
    headers: 响应.headers
});

// 添加自定义头部,包含 URL 信息
//新响应.headers.set('X-Proxied-By', 'Cloudflare Worker');
//新响应.headers.set('X-Original-URL', 完整网址);
新响应.headers.set('X-New-URL', 新网址);

return 新响应;

}

const 啥啥啥_写的这是啥啊 = atob('ZG14bGMzTT0=');
function 配置信息(UUID, 域名地址) {

const 协议类型 = atob(啥啥啥_写的这是啥啊);

const 别名 = FileName;
let 地址 = 域名地址;
let 端口 = 443;

const 用户ID = UUID;
const 加密方式 = 'none';

const 传输层协议 = 'ws';
const 伪装域名 = 域名地址;
const 路径 = path;

let 传输层安全 = ['tls', true];
const SNI = 域名地址;
const 指纹 = 'randomized';

if (域名地址.includes('.workers.dev')) {
    地址 = atob('dmlzYS5jbg==');
    端口 = 80;
    传输层安全 = ['', false];
}

const 威图瑞 = `${协议类型}://${用户ID}@${地址}:${端口}\u003f\u0065\u006e\u0063\u0072\u0079` + 'p' + `${atob('dGlvbj0=') + 加密方式}\u0026\u0073\u0065\u0063\u0075\u0072\u0069\u0074\u0079\u003d${传输层安全[0]}&sni=${SNI}&fp=${指纹}&type=${传输层协议}&host=${伪装域名}&path=${encodeURIComponent(路径) + allowInsecure}&fragment=1,40-60,30-50,tlshello#${encodeURIComponent(别名)}`;
const 猫猫猫 = `- {name: ${FileName}, server: ${地址}, port: ${端口}, type: ${协议类型}, uuid: ${用户ID}, tls: ${传输层安全[1]}, alpn: [h3], udp: false, sni: ${SNI}, tfo: false, skip-cert-verify: ${SCV}, servername: ${伪装域名}, client-fingerprint: ${指纹}, network: ${传输层协议}, ws-opts: {path: "${路径}", headers: {${伪装域名}}}}`;
return [威图瑞, 猫猫猫];

}

let subParams = ['sub', 'base64', 'b64', 'clash', 'singbox', 'sb'];
const cmad = decodeURIComponent(atob('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'));
/**

  • @param {string} userID
  • @param {string | null} hostName
  • @param {string} sub
  • @param {string} UA
  • @returns {Promise}
    */

async function 生成配置信息(userID, hostName, sub, UA, RproxyIP, _url, fakeUserID, fakeHostName, env) {

if (sub) {
    const match = sub.match(/^(?:https?:\/\/)?([^\/]+)/);
    if (match) {
        sub = match[1];
    }
    const subs = await 整理(sub);
    if (subs.length > 1) sub = subs[0];
} else {
    if (env.KV) {
        await 迁移地址列表(env);
        const 优选地址列表 = await env.KV.get('ADD.txt');
        if (优选地址列表) {
            const 优选地址数组 = await 整理(优选地址列表);
            const 分类地址 = {
                接口地址: new Set(),
                链接地址: new Set(),
                优选地址: new Set()
            };

            for (const 元素 of 优选地址数组) {
                if (元素.startsWith('https://')) {
                    分类地址.接口地址.add(元素);
                } else if (元素.includes('://')) {
                    分类地址.链接地址.add(元素);
                } else {
                    分类地址.优选地址.add(元素);
                }
            }

            addressesapi = [...分类地址.接口地址];
            link = [...分类地址.链接地址];
            addresses = [...分类地址.优选地址];
        }
    }

    if ((addresses.length + addressesapi.length + addressesnotls.length + addressesnotlsapi.length + addressescsv.length) == 0) {
        // 定义 Cloudflare IP 范围的 CIDR 列表
        let cfips = [
            '103.21.244.0/24',
            '104.16.0.0/13',
            '104.24.0.0/14',
            '172.64.0.0/14',
            '104.16.0.0/14',
            '104.24.0.0/15',
            '141.101.64.0/19',
            '172.64.0.0/14',
            '188.114.96.0/21',
            '190.93.240.0/21',
            '162.159.152.0/23',
            '104.16.0.0/13',
            '104.24.0.0/14',
            '172.64.0.0/14',
            '104.16.0.0/14',
            '104.24.0.0/15',
            '141.101.64.0/19',
            '172.64.0.0/14',
            '188.114.96.0/21',
            '190.93.240.0/21',
        ];

        // 生成符合给定 CIDR 范围的随机 IP 地址
        function generateRandomIPFromCIDR(cidr) {
            const [base, mask] = cidr.split('/');
            const baseIP = base.split('.').map(Number);
            const subnetMask = 32 - parseInt(mask, 10);
            const maxHosts = Math.pow(2, subnetMask) - 1;
            const randomHost = Math.floor(Math.random() * maxHosts);

            const randomIP = baseIP.map((octet, index) => {
                if (index < 2) return octet;
                if (index === 2) return (octet & (255 << (subnetMask - 8))) + ((randomHost >> 8) & 255);
                return (octet & (255 << subnetMask)) + (randomHost & 255);
            });

            return randomIP.join('.');
        }
        addresses = addresses.concat('127.0.0.1:1234#CFnat');
        let counter = 1;
        if (hostName.includes("worker") || hostName.includes("notls")) {
            const randomPorts = httpPorts.concat('80');
            addressesnotls = addressesnotls.concat(
                cfips.map(cidr => generateRandomIPFromCIDR(cidr) + ':' + randomPorts[Math.floor(Math.random() * randomPorts.length)] + '#CF随机节点' + String(counter++).padStart(2, '0'))
            );
        } else {
            const randomPorts = httpsPorts.concat('443');
            addresses = addresses.concat(
                cfips.map(cidr => generateRandomIPFromCIDR(cidr) + ':' + randomPorts[Math.floor(Math.random() * randomPorts.length)] + '#CF随机节点' + String(counter++).padStart(2, '0'))
            );
        }
    }
}

const uuid = (_url.pathname == `/${动态UUID}`) ? 动态UUID : userID;
const userAgent = UA.toLowerCase();
const Config = 配置信息(userID, hostName);
const v2ray = Config[0];
const clash = Config[1];
let proxyhost = "";
if (hostName.includes(".workers.dev")) {
    if (proxyhostsURL && (!proxyhosts || proxyhosts.length == 0)) {
        try {
            const response = await fetch(proxyhostsURL);

            if (!response.ok) {
                console.error('获取地址时出错:', response.status, response.statusText);
                return; // 如果有错误,直接返回
            }

            const text = await response.text();
            const lines = text.split('\n');
            // 过滤掉空行或只包含空白字符的行
            const nonEmptyLines = lines.filter(line => line.trim() !== '');

            proxyhosts = proxyhosts.concat(nonEmptyLines);
        } catch (error) {
            //console.error('获取地址时出错:', error);
        }
    }
    if (proxyhosts.length != 0) proxyhost = proxyhosts[Math.floor(Math.random() * proxyhosts.length)] + "/";
}

if (userAgent.includes('mozilla') && !subParams.some(_searchParams => _url.searchParams.has(_searchParams))) {
    const newSocks5s = socks5s.map(socks5Address => {
        if (socks5Address.includes('@')) return socks5Address.split('@')[1];
        else if (socks5Address.includes('//')) return socks5Address.split('//')[1];
        else return socks5Address;
    });

    let socks5List = '';
    if (go2Socks5s.length > 0 && enableSocks) {
        socks5List = `${(enableHttp ? "HTTP" : "Socks5") + decodeURIComponent('%EF%BC%88%E7%99%BD%E5%90%8D%E5%8D%95%EF%BC%89%3A%20')}`;
        if (go2Socks5s.includes(atob('YWxsIGlu')) || go2Socks5s.includes(atob('Kg=='))) socks5List += `${decodeURIComponent('%E6%89%80%E6%9C%89%E6%B5%81%E9%87%8F')}<br>`;
        else socks5List += `<br>&nbsp;&nbsp;${go2Socks5s.join('<br>&nbsp;&nbsp;')}<br>`;
    }

    let 订阅器 = '<br>';
    if (sub) {
        if (enableSocks) 订阅器 += `CFCDN(访问方式): ${enableHttp ? "HTTP" : "Socks5"}<br>&nbsp;&nbsp;${newSocks5s.join('<br>&nbsp;&nbsp;')}<br>${socks5List}`;
        else if (proxyIP && proxyIP != '') 订阅器 += `CFCDN(访问方式): ProxyIP<br>&nbsp;&nbsp;${proxyIPs.join('<br>&nbsp;&nbsp;')}<br>`;
        else if (RproxyIP == 'true') 订阅器 += `CFCDN(访问方式): 自动获取ProxyIP<br>`;
        else 订阅器 += `CFCDN(访问方式): 无法访问, 需要您设置 proxyIP/PROXYIP !!!<br>`
        订阅器 += `<br>SUB(优选订阅生成器): ${sub}`;
    } else {
        if (enableSocks) 订阅器 += `CFCDN(访问方式): ${enableHttp ? "HTTP" : "Socks5"}<br>&nbsp;&nbsp;${newSocks5s.join('<br>&nbsp;&nbsp;')}<br>${socks5List}`;
        else if (proxyIP && proxyIP != '') 订阅器 += `CFCDN(访问方式): ProxyIP<br>&nbsp;&nbsp;${proxyIPs.join('<br>&nbsp;&nbsp;')}<br>`;
        else 订阅器 += `CFCDN(访问方式): 无法访问, 需要您设置 proxyIP/PROXYIP !!!<br>`;
        let 判断是否绑定KV空间 = '';
        if (env.KV) 判断是否绑定KV空间 = ` [<a href='${_url.pathname}/edit'>编辑优选列表</a>]  [<a href='${_url.pathname}/bestip'>在线优选IP</a>]`;
        订阅器 += `<br>您的订阅内容由 内置 addresses/ADD* 参数变量提供${判断是否绑定KV空间}<br>`;
        if (addresses.length > 0) 订阅器 += `ADD(TLS优选域名&IP): <br>&nbsp;&nbsp;${addresses.join('<br>&nbsp;&nbsp;')}<br>`;
        if (addressesnotls.length > 0) 订阅器 += `ADDNOTLS(noTLS优选域名&IP): <br>&nbsp;&nbsp;${addressesnotls.join('<br>&nbsp;&nbsp;')}<br>`;
        if (addressesapi.length > 0) 订阅器 += `ADDAPI(TLS优选域名&IP 的 API): <br>&nbsp;&nbsp;${addressesapi.join('<br>&nbsp;&nbsp;')}<br>`;
        if (addressesnotlsapi.length > 0) 订阅器 += `ADDNOTLSAPI(noTLS优选域名&IP 的 API): <br>&nbsp;&nbsp;${addressesnotlsapi.join('<br>&nbsp;&nbsp;')}<br>`;
        if (addressescsv.length > 0) 订阅器 += `ADDCSV(IPTest测速csv文件 限速 ${DLS} ): <br>&nbsp;&nbsp;${addressescsv.join('<br>&nbsp;&nbsp;')}<br>`;
    }

    if (动态UUID && _url.pathname !== `/${动态UUID}`) 订阅器 = '';
    else 订阅器 += `<br>SUBAPI(订阅转换后端): <a href='${subProtocol}://${subConverter}/version' target="_blank" rel="noopener noreferrer">${subProtocol}://${subConverter}</a><br>SUBCONFIG(订阅转换配置文件): <a href='${subConfig}' target="_blank" rel="noopener noreferrer">${subConfig}</a>`;
    const 动态UUID信息 = (uuid != userID) ? `TOKEN: ${uuid}<br>UUIDNow: ${userID}<br>UUIDLow: ${userIDLow}<br>${userIDTime}TIME(动态UUID有效时间): ${有效时间} 天<br>UPTIME(动态UUID更新时间): ${更新时间} 时(北京时间)<br><br>` : `${userIDTime}`;
    const 节点配置页 = `
        ################################################################<br>
        Subscribe / sub 订阅地址, 点击链接自动 <strong>复制订阅链接</strong> 并 <strong>生成订阅二维码</strong> <br>
        ---------------------------------------------------------------<br>
        自适应订阅地址:<br>
        <a href="javascript:void(0)" onclick="copyToClipboard('https://${proxyhost}${hostName}/${uuid}?sub','qrcode_0')" style="color:blue;text-decoration:underline;cursor:pointer;">https://${proxyhost}${hostName}/${uuid}</a><br>
        <div id="qrcode_0" style="margin: 10px 10px 10px 10px;"></div>
        Base64订阅地址:<br>
        <a href="javascript:void(0)" onclick="copyToClipboard('https://${proxyhost}${hostName}/${uuid}?b64','qrcode_1')" style="color:blue;text-decoration:underline;cursor:pointer;">https://${proxyhost}${hostName}/${uuid}?b64</a><br>
        <div id="qrcode_1" style="margin: 10px 10px 10px 10px;"></div>
        clash订阅地址:<br>
        <a href="javascript:void(0)" onclick="copyToClipboard('https://${proxyhost}${hostName}/${uuid}?clash','qrcode_2')" style="color:blue;text-decoration:underline;cursor:pointer;">https://${proxyhost}${hostName}/${uuid}?clash</a><br>
        <div id="qrcode_2" style="margin: 10px 10px 10px 10px;"></div>
        singbox订阅地址:<br>
        <a href="javascript:void(0)" onclick="copyToClipboard('https://${proxyhost}${hostName}/${uuid}?sb','qrcode_3')" style="color:blue;text-decoration:underline;cursor:pointer;">https://${proxyhost}${hostName}/${uuid}?sb</a><br>
        <div id="qrcode_3" style="margin: 10px 10px 10px 10px;"></div>
        loon订阅地址:<br>
        <a href="javascript:void(0)" onclick="copyToClipboard('https://${proxyhost}${hostName}/${uuid}?loon','qrcode_5')" style="color:blue;text-decoration:underline;cursor:pointer;">https://${proxyhost}${hostName}/${uuid}?loon</a><br>
        <div id="qrcode_5" style="margin: 10px 10px 10px 10px;"></div>
        <strong><a href="javascript:void(0);" id="noticeToggle" onclick="toggleNotice()">实用订阅技巧∨</a></strong><br>
            <div id="noticeContent" class="notice-content" style="display: none;">
                <strong>1.</strong> 如您使用的是 PassWall、PassWall2 路由插件,订阅编辑的 <strong>用户代理(User-Agent)</strong> 设置为 <strong>PassWall</strong> 即可;<br>
                <br>
                <strong>2.</strong> 如您使用的是 SSR+ 路由插件,推荐使用 <strong>Base64订阅地址</strong> 进行订阅;<br>
                <br>
                <strong>3.</strong> 快速切换 <a href='${atob('aHR0cHM6Ly9naXRodWIuY29tL2NtbGl1L1dvcmtlclZsZXNzMnN1Yg==')}'>优选订阅生成器</a> 至:sub.google.com,您可将"?sub=sub.google.com"参数添加到链接末尾,例如:<br>
                &nbsp;&nbsp;https://${proxyhost}${hostName}/${uuid}<strong>?sub=sub.google.com</strong><br>
                <br>
                <strong>4.</strong> 快速更换 PROXYIP 至:proxyip.cmliussss.net:443,您可将"?proxyip=proxyip.cmliussss.net:443"参数添加到链接末尾,例如:<br>
                &nbsp;&nbsp; https://${proxyhost}${hostName}/${uuid}<strong>?proxyip=proxyip.cmliussss.net:443</strong><br>
                <br>
                <strong>5.</strong> 快速更换 SOCKS5 至:user:password@127.0.0.1:1080,您可将"?socks5=user:password@127.0.0.1:1080"参数添加到链接末尾,例如:<br>
                &nbsp;&nbsp;https://${proxyhost}${hostName}/${uuid}<strong>?socks5=user:password@127.0.0.1:1080</strong><br>
                <br>
                <strong>6.</strong> 如需指定多个参数则需要使用'&'做间隔,例如:<br>
                &nbsp;&nbsp;https://${proxyhost}${hostName}/${uuid}?sub=sub.google.com<strong>&</strong>proxyip=proxyip.cmliussss.net<br>
            </div>
        <script src="https://cdn.jsdelivr.net/npm/@keeex/qrcodejs-kx@1.0.2/qrcode.min.js"></script>
        <script>
        function copyToClipboard(text, qrcode) {
            navigator.clipboard.writeText(text).then(() => {
                alert('已复制到剪贴板');
            }).catch(err => {
                console.error('复制失败:', err);
            });
            const qrcodeDiv = document.getElementById(qrcode);
            qrcodeDiv.innerHTML = '';
            new QRCode(qrcodeDiv, {
                text: text,
                width: 220, // 调整宽度
                height: 220, // 调整高度
                colorDark: "#000000", // 二维码颜色
                colorLight: "#ffffff", // 背景颜色
                correctLevel: QRCode.CorrectLevel.Q, // 设置纠错级别
                scale: 1 // 调整像素颗粒度
            });
        }

        function toggleNotice() {
            const noticeContent = document.getElementById('noticeContent');
            const noticeToggle = document.getElementById('noticeToggle');
            if (noticeContent.style.display === 'none') {
                noticeContent.style.display = 'block';
                noticeToggle.textContent = '实用订阅技巧∧';
            } else {
                noticeContent.style.display = 'none'; 
                noticeToggle.textContent = '实用订阅技巧∨';
            }
        }
        </script>
        ---------------------------------------------------------------<br>
        ################################################################<br>
        ${FileName} 配置信息<br>
        ---------------------------------------------------------------<br>
        ${动态UUID信息}HOST: ${hostName}<br>
        UUID: ${userID}<br>
        FKID: ${fakeUserID}<br>
        UA: ${UA}<br>
        SCV(跳过TLS证书验证): ${SCV}<br>
        ${订阅器}<br>
        ---------------------------------------------------------------<br>
        ################################################################<br>
        v2ray<br>
        ---------------------------------------------------------------<br>
        <a href="javascript:void(0)" onclick="copyToClipboard('${v2ray}','qrcode_v2ray')" style="color:blue;text-decoration:underline;cursor:pointer;">${v2ray}</a><br>
        <div id="qrcode_v2ray" style="margin: 10px 10px 10px 10px;"></div>
        ---------------------------------------------------------------<br>
        ################################################################<br>
        clash-meta<br>
        ---------------------------------------------------------------<br>
        ${clash}<br>
        ---------------------------------------------------------------<br>
        ################################################################<br>
        ${cmad}
        `;
    return `<div style="font-size:13px;">${节点配置页}</div>`;
} else {
    if (typeof fetch != 'function') {
        return 'Error: fetch is not available in this environment.';
    }

    let newAddressesapi = [];
    let newAddressescsv = [];
    let newAddressesnotlsapi = [];
    let newAddressesnotlscsv = [];

    // 如果是使用默认域名,则改成一个workers的域名,订阅器会加上代理
    if (hostName.includes(".workers.dev")) {
        noTLS = 'true';
        fakeHostName = `${fakeHostName}.workers.dev`;
        newAddressesnotlsapi = await 整理优选列表(addressesnotlsapi);
        newAddressesnotlscsv = await 整理测速结果('FALSE');
    } else if (hostName.includes(".pages.dev")) {
        fakeHostName = `${fakeHostName}.pages.dev`;
    } else if (hostName.includes("worker") || hostName.includes("notls") || noTLS == 'true') {
        noTLS = 'true';
        fakeHostName = `notls${fakeHostName}.net`;
        newAddressesnotlsapi = await 整理优选列表(addressesnotlsapi);
        newAddressesnotlscsv = await 整理测速结果('FALSE');
    } else {
        fakeHostName = `${fakeHostName}.xyz`
    }
    console.log(`虚假HOST: ${fakeHostName}`);
    let url = `${subProtocol}://${sub}/sub?host=${fakeHostName}&uuid=${fakeUserID + atob('JmVkZ2V0dW5uZWw9Y21saXUmcHJveHlpcD0=') + RproxyIP}&path=${encodeURIComponent(path)}`;
    let isBase64 = true;

    if (!sub || sub == "") {
        if (hostName.includes('workers.dev')) {
            if (proxyhostsURL && (!proxyhosts || proxyhosts.length == 0)) {
                try {
                    const response = await fetch(proxyhostsURL);

                    if (!response.ok) {
                        console.error('获取地址时出错:', response.status, response.statusText);
                        return; // 如果有错误,直接返回
                    }

                    const text = await response.text();
                    const lines = text.split('\n');
                    // 过滤掉空行或只包含空白字符的行
                    const nonEmptyLines = lines.filter(line => line.trim() !== '');

                    proxyhosts = proxyhosts.concat(nonEmptyLines);
                } catch (error) {
                    console.error('获取地址时出错:', error);
                }
            }
            // 使用Set对象去重
            proxyhosts = [...new Set(proxyhosts)];
        }

        newAddressesapi = await 整理优选列表(addressesapi);
        newAddressescsv = await 整理测速结果('TRUE');
        url = `https://${hostName}/${fakeUserID + _url.search}`;
        if (hostName.includes("worker") || hostName.includes("notls") || noTLS == 'true') {
            if (_url.search) url += '&notls';
            else url += '?notls';
        }
        console.log(`虚假订阅: ${url}`);
    }

    if (!userAgent.includes(('CF-Workers-SUB').toLowerCase()) && !_url.searchParams.has('b64') && !_url.searchParams.has('base64')) {
        if ((userAgent.includes('clash') && !userAgent.includes('nekobox')) || (_url.searchParams.has('clash') && !userAgent.includes('subconverter'))) {
            url = `${subProtocol}://${subConverter}/sub?target=clash&url=${encodeURIComponent(url)}&insert=false&config=${encodeURIComponent(subConfig)}&emoji=${subEmoji}&list=false&tfo=false&scv=${SCV}&fdn=false&sort=false&new_name=true`;
            isBase64 = false;
        } else if (userAgent.includes('sing-box') || userAgent.includes('singbox') || ((_url.searchParams.has('singbox') || _url.searchParams.has('sb')) && !userAgent.includes('subconverter'))) {
            url = `${subProtocol}://${subConverter}/sub?target=singbox&url=${encodeURIComponent(url)}&insert=false&config=${encodeURIComponent(subConfig)}&emoji=${subEmoji}&list=false&tfo=false&scv=${SCV}&fdn=false&sort=false&new_name=true`;
            isBase64 = false;
        } else if (userAgent.includes('loon') || (_url.searchParams.has('loon') && !userAgent.includes('subconverter'))) {
            url = `${subProtocol}://${subConverter}/sub?target=loon&url=${encodeURIComponent(url)}&insert=false&config=${encodeURIComponent(subConfig)}&emoji=${subEmoji}&list=false&tfo=false&scv=${SCV}&fdn=false&sort=false&new_name=true`;
            isBase64 = false;
        }
    }

    try {
        let content;
        if ((!sub || sub == "") && isBase64 == true) {
            content = await 生成本地订阅(fakeHostName, fakeUserID, noTLS, newAddressesapi, newAddressescsv, newAddressesnotlsapi, newAddressesnotlscsv);
        } else {
            const response = await fetch(url, {
                headers: {
                    'User-Agent': UA + atob('IENGLVdvcmtlcnMtZWRnZXR1bm5lbC9jbWxpdQ==')
                }
            });
            content = await response.text();
        }

        if (_url.pathname == `/${fakeUserID}`) return content;

        return 恢复伪装信息(content, userID, hostName, fakeUserID, fakeHostName, isBase64);

    } catch (error) {
        console.error('Error fetching content:', error);
        return `Error fetching content: ${error.message}`;
    }
}

}

async function 整理优选列表(api) {

if (!api || api.length === 0) return [];

let newapi = "";

// 创建一个AbortController对象,用于控制fetch请求的取消
const controller = new AbortController();

const timeout = setTimeout(() => {
    controller.abort(); // 取消所有请求
}, 2000); // 2秒后触发

try {
    // 使用Promise.allSettled等待所有API请求完成,无论成功或失败
    // 对api数组进行遍历,对每个API地址发起fetch请求
    const responses = await Promise.allSettled(api.map(apiUrl => fetch(apiUrl, {
        method: 'get',
        headers: {
            'Accept': 'text/html,application/xhtml+xml,application/xml;',
            'User-Agent': atob('Q0YtV29ya2Vycy1lZGdldHVubmVsL2NtbGl1')
        },
        signal: controller.signal // 将AbortController的信号量添加到fetch请求中,以便于需要时可以取消请求
    }).then(response => response.ok ? response.text() : Promise.reject())));

    // 遍历所有响应
    for (const [index, response] of responses.entries()) {
        // 检查响应状态是否为'fulfilled',即请求成功完成
        if (response.status === 'fulfilled') {
            // 获取响应的内容
            const content = await response.value;

            const lines = content.split(/\r?\n/);
            let 节点备注 = '';
            let 测速端口 = '443';

            if (lines[0].split(',').length > 3) {
                const idMatch = api[index].match(/id=([^&]*)/);
                if (idMatch) 节点备注 = idMatch[1];

                const portMatch = api[index].match(/port=([^&]*)/);
                if (portMatch) 测速端口 = portMatch[1];

                for (let i = 1; i < lines.length; i++) {
                    const columns = lines[i].split(',')[0];
                    if (columns) {
                        newapi += `${columns}:${测速端口}${节点备注 ? `#${节点备注}` : ''}\n`;
                        if (api[index].includes('proxyip=true')) proxyIPPool.push(`${columns}:${测速端口}`);
                    }
                }
            } else {
                // 验证当前apiUrl是否带有'proxyip=true'
                if (api[index].includes('proxyip=true')) {
                    // 如果URL带有'proxyip=true',则将内容添加到proxyIPPool
                    proxyIPPool = proxyIPPool.concat((await 整理(content)).map(item => {
                        const baseItem = item.split('#')[0] || item;
                        if (baseItem.includes(':')) {
                            const port = baseItem.split(':')[1];
                            if (!httpsPorts.includes(port)) {
                                return baseItem;
                            }
                        } else {
                            return `${baseItem}:443`;
                        }
                        return null; // 不符合条件时返回 null
                    }).filter(Boolean)); // 过滤掉 null 值
                }
                // 将内容添加到newapi中
                newapi += content + '\n';
            }
        }
    }
} catch (error) {
    console.error(error);
} finally {
    // 无论成功或失败,最后都清除设置的超时定时器
    clearTimeout(timeout);
}

const newAddressesapi = await 整理(newapi);

// 返回处理后的结果
return newAddressesapi;

}

async function 整理测速结果(tls) {

if (!addressescsv || addressescsv.length === 0) {
    return [];
}

let newAddressescsv = [];

for (const csvUrl of addressescsv) {
    try {
        const response = await fetch(csvUrl);

        if (!response.ok) {
            console.error('获取CSV地址时出错:', response.status, response.statusText);
            continue;
        }

        const text = await response.text();// 使用正确的字符编码解析文本内容
        let lines;
        if (text.includes('\r\n')) {
            lines = text.split('\r\n');
        } else {
            lines = text.split('\n');
        }

        // 检查CSV头部是否包含必需字段
        const header = lines[0].split(',');
        const tlsIndex = header.indexOf('TLS');

        const ipAddressIndex = 0;// IP地址在 CSV 头部的位置
        const portIndex = 1;// 端口在 CSV 头部的位置
        const dataCenterIndex = tlsIndex + remarkIndex; // 数据中心是 TLS 的后一个字段

        if (tlsIndex === -1) {
            console.error('CSV文件缺少必需的字段');
            continue;
        }

        // 从第二行开始遍历CSV行
        for (let i = 1; i < lines.length; i++) {
            const columns = lines[i].split(',');
            const speedIndex = columns.length - 1; // 最后一个字段
            // 检查TLS是否为"TRUE"且速度大于DLS
            if (columns[tlsIndex].toUpperCase() === tls && parseFloat(columns[speedIndex]) > DLS) {
                const ipAddress = columns[ipAddressIndex];
                const port = columns[portIndex];
                const dataCenter = columns[dataCenterIndex];

                const formattedAddress = `${ipAddress}:${port}#${dataCenter}`;
                newAddressescsv.push(formattedAddress);
                if (csvUrl.includes('proxyip=true') && columns[tlsIndex].toUpperCase() == 'true' && !httpsPorts.includes(port)) {
                    // 如果URL带有'proxyip=true',则将内容添加到proxyIPPool
                    proxyIPPool.push(`${ipAddress}:${port}`);
                }
            }
        }
    } catch (error) {
        console.error('获取CSV地址时出错:', error);
        continue;
    }
}

return newAddressescsv;

}

function 生成本地订阅(host, UUID, noTLS, newAddressesapi, newAddressescsv, newAddressesnotlsapi, newAddressesnotlscsv) {

const regex = /^(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}|\[.*\]):?(\d+)?#?(.*)?$/;
addresses = addresses.concat(newAddressesapi);
addresses = addresses.concat(newAddressescsv);
let notlsresponseBody;
if (noTLS == 'true') {
    addressesnotls = addressesnotls.concat(newAddressesnotlsapi);
    addressesnotls = addressesnotls.concat(newAddressesnotlscsv);
    const uniqueAddressesnotls = [...new Set(addressesnotls)];

    notlsresponseBody = uniqueAddressesnotls.map(address => {
        let port = "-1";
        let addressid = address;

        const match = addressid.match(regex);
        if (!match) {
            if (address.includes(':') && address.includes('#')) {
                const parts = address.split(':');
                address = parts[0];
                const subParts = parts[1].split('#');
                port = subParts[0];
                addressid = subParts[1];
            } else if (address.includes(':')) {
                const parts = address.split(':');
                address = parts[0];
                port = parts[1];
            } else if (address.includes('#')) {
                const parts = address.split('#');
                address = parts[0];
                addressid = parts[1];
            }

            if (addressid.includes(':')) {
                addressid = addressid.split(':')[0];
            }
        } else {
            address = match[1];
            port = match[2] || port;
            addressid = match[3] || address;
        }

        if (!isValidIPv4(address) && port == "-1") {
            for (let httpPort of httpPorts) {
                if (address.includes(httpPort)) {
                    port = httpPort;
                    break;
                }
            }
        }
        if (port == "-1") port = "80";

        let 伪装域名 = host;
        let 最终路径 = path;
        let 节点备注 = '';
        const 协议类型 = atob(啥啥啥_写的这是啥啊);

        const 维列斯Link = `${协议类型}://${UUID}@${address}:${port + atob('P2VuY3J5cHRpb249bm9uZSZzZWN1cml0eT0mdHlwZT13cyZob3N0PQ==') + 伪装域名}&path=${encodeURIComponent(最终路径)}#${encodeURIComponent(addressid + 节点备注)}`;

        return 维列斯Link;

    }).join('\n');

}

// 使用Set对象去重
const uniqueAddresses = [...new Set(addresses)];

const responseBody = uniqueAddresses.map(address => {
    let port = "-1";
    let addressid = address;

    const match = addressid.match(regex);
    if (!match) {
        if (address.includes(':') && address.includes('#')) {
            const parts = address.split(':');
            address = parts[0];
            const subParts = parts[1].split('#');
            port = subParts[0];
            addressid = subParts[1];
        } else if (address.includes(':')) {
            const parts = address.split(':');
            address = parts[0];
            port = parts[1];
        } else if (address.includes('#')) {
            const parts = address.split('#');
            address = parts[0];
            addressid = parts[1];
        }

        if (addressid.includes(':')) {
            addressid = addressid.split(':')[0];
        }
    } else {
        address = match[1];
        port = match[2] || port;
        addressid = match[3] || address;
    }

    if (!isValidIPv4(address) && port == "-1") {
        for (let httpsPort of httpsPorts) {
            if (address.includes(httpsPort)) {
                port = httpsPort;
                break;
            }
        }
    }
    if (port == "-1") port = "443";

    let 伪装域名 = host;
    let 最终路径 = path;
    let 节点备注 = '';
    const matchingProxyIP = proxyIPPool.find(proxyIP => proxyIP.includes(address));
    if (matchingProxyIP) 最终路径 = `/proxyip=${matchingProxyIP}`;

    if (proxyhosts.length > 0 && (伪装域名.includes('.workers.dev'))) {
        最终路径 = `/${伪装域名}${最终路径}`;
        伪装域名 = proxyhosts[Math.floor(Math.random() * proxyhosts.length)];
        节点备注 = ` 已启用临时域名中转服务,请尽快绑定自定义域!`;
    }

    const 协议类型 = atob(啥啥啥_写的这是啥啊);
    const 维列斯Link = `${协议类型}://${UUID}@${address}:${port + atob('P2VuY3J5cHRpb249bm9uZSZzZWN1cml0eT10bHMmc25pPQ==') + 伪装域名}&fp=random&type=ws&host=${伪装域名}&path=${encodeURIComponent(最终路径) + allowInsecure}&fragment=1,40-60,30-50,tlshello#${encodeURIComponent(addressid + 节点备注)}`;

    return 维列斯Link;
}).join('\n');

let base64Response = responseBody; // 重新进行 Base64 编码
if (noTLS == 'true') base64Response += `\n${notlsresponseBody}`;
if (link.length > 0) base64Response += '\n' + link.join('\n');
return btoa(base64Response);

}

async function 整理(内容) {

// 将制表符、双引号、单引号和换行符都替换为逗号
// 然后将连续的多个逗号替换为单个逗号
var 替换后的内容 = 内容.replace(/[    |"'\r\n]+/g, ',').replace(/,+/g, ',');

// 删除开头和结尾的逗号(如果有的话)
if (替换后的内容.charAt(0) == ',') 替换后的内容 = 替换后的内容.slice(1);
if (替换后的内容.charAt(替换后的内容.length - 1) == ',') 替换后的内容 = 替换后的内容.slice(0, 替换后的内容.length - 1);

// 使用逗号分割字符串,得到地址数组
const 地址数组 = 替换后的内容.split(',');

return 地址数组;

}

async function sendMessage(type, ip, add_data = "") {

if (!BotToken || !ChatID) return;

try {
    let msg = "";
    const response = await fetch(`http://ip-api.com/json/${ip}?lang=zh-CN`);
    if (response.ok) {
        const ipInfo = await response.json();
        msg = `${type}\nIP: ${ip}\n国家: ${ipInfo.country}\n<tg-spoiler>城市: ${ipInfo.city}\n组织: ${ipInfo.org}\nASN: ${ipInfo.as}\n${add_data}`;
    } else {
        msg = `${type}\nIP: ${ip}\n<tg-spoiler>${add_data}`;
    }

    const url = `https://api.telegram.org/bot${BotToken}/sendMessage?chat_id=${ChatID}&parse_mode=HTML&text=${encodeURIComponent(msg)}`;
    return fetch(url, {
        method: 'GET',
        headers: {
            'Accept': 'text/html,application/xhtml+xml,application/xml;',
            'Accept-Encoding': 'gzip, deflate, br',
            'User-Agent': 'Mozilla/5.0 Chrome/90.0.4430.72'
        }
    });
} catch (error) {
    console.error('Error sending message:', error);
}

}

function isValidIPv4(address) {

const ipv4Regex = /^(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/;
return ipv4Regex.test(address);

}

function 生成动态UUID(密钥) {

const 时区偏移 = 8; // 北京时间相对于UTC的时区偏移+8小时
const 起始日期 = new Date(2007, 6, 7, 更新时间, 0, 0); // 固定起始日期为2007年7月7日的凌晨3点
const 一周的毫秒数 = 1000 * 60 * 60 * 24 * 有效时间;

function 获取当前周数() {
    const 现在 = new Date();
    const 调整后的现在 = new Date(现在.getTime() + 时区偏移 * 60 * 60 * 1000);
    const 时间差 = Number(调整后的现在) - Number(起始日期);
    return Math.ceil(时间差 / 一周的毫秒数);
}

function 生成UUID(基础字符串) {
    const 哈希缓冲区 = new TextEncoder().encode(基础字符串);
    return crypto.subtle.digest('SHA-256', 哈希缓冲区).then((哈希) => {
        const 哈希数组 = Array.from(new Uint8Array(哈希));
        const 十六进制哈希 = 哈希数组.map(b => b.toString(16).padStart(2, '0')).join('');
        return `${十六进制哈希.substr(0, 8)}-${十六进制哈希.substr(8, 4)}-4${十六进制哈希.substr(13, 3)}-${(parseInt(十六进制哈希.substr(16, 2), 16) & 0x3f | 0x80).toString(16)}${十六进制哈希.substr(18, 2)}-${十六进制哈希.substr(20, 12)}`;
    });
}

const 当前周数 = 获取当前周数(); // 获取当前周数
const 结束时间 = new Date(起始日期.getTime() + 当前周数 * 一周的毫秒数);

// 生成两个 UUID
const 当前UUIDPromise = 生成UUID(密钥 + 当前周数);
const 上一个UUIDPromise = 生成UUID(密钥 + (当前周数 - 1));

// 格式化到期时间
const 到期时间UTC = new Date(结束时间.getTime() - 时区偏移 * 60 * 60 * 1000); // UTC时间
const 到期时间字符串 = `到期时间(UTC): ${到期时间UTC.toISOString().slice(0, 19).replace('T', ' ')} (UTC+8): ${结束时间.toISOString().slice(0, 19).replace('T', ' ')}\n`;

return Promise.all([当前UUIDPromise, 上一个UUIDPromise, 到期时间字符串]);

}

async function 迁移地址列表(env, txt = 'ADD.txt') {

const 旧数据 = await env.KV.get(`/${txt}`);
const 新数据 = await env.KV.get(txt);

if (旧数据 && !新数据) {
    // 写入新位置
    await env.KV.put(txt, 旧数据);
    // 删除旧数据
    await env.KV.delete(`/${txt}`);
    return true;
}
return false;

}

async function KV(request, env, txt = 'ADD.txt') {

try {
    // POST请求处理
    if (request.method === "POST") {
        if (!env.KV) return new Response("未绑定KV空间", { status: 400 });
        try {
            const content = await request.text();
            await env.KV.put(txt, content);
            return new Response("保存成功");
        } catch (error) {
            console.error('保存KV时发生错误:', error);
            return new Response("保存失败: " + error.message, { status: 500 });
        }
    }

    // GET请求部分
    let content = '';
    let hasKV = !!env.KV;

    if (hasKV) {
        try {
            content = await env.KV.get(txt) || '';
        } catch (error) {
            console.error('读取KV时发生错误:', error);
            content = '读取数据时发生错误: ' + error.message;
        }
    }

    const html = `
        <!DOCTYPE html>
        <html>
        <head>
            <title>优选订阅列表</title>
            <meta charset="utf-8">
            <meta name="viewport" content="width=device-width, initial-scale=1">
            <style>
                body {
                    margin: 0;
                    padding: 15px; /* 调整padding */
                    box-sizing: border-box;
                    font-size: 13px; /* 设置全局字体大小 */
                }
                .editor-container {
                    width: 100%;
                    max-width: 100%;
                    margin: 0 auto;
                }
                .editor {
                    width: 100%;
                    height: 520px; /* 调整高度 */
                    margin: 15px 0; /* 调整margin */
                    padding: 10px; /* 调整padding */
                    box-sizing: border-box;
                    border: 1px solid #ccc;
                    border-radius: 4px;
                    font-size: 13px;
                    line-height: 1.5;
                    overflow-y: auto;
                    resize: none;
                }
                .save-container {
                    margin-top: 8px; /* 调整margin */
                    display: flex;
                    align-items: center;
                    gap: 10px; /* 调整gap */
                }
                .save-btn, .back-btn {
                    padding: 6px 15px; /* 调整padding */
                    color: white;
                    border: none;
                    border-radius: 4px;
                    cursor: pointer;
                }
                .save-btn {
                    background: #4CAF50;
                }
                .save-btn:hover {
                    background: #45a049;
                }
                .back-btn {
                    background: #666;
                }
                .back-btn:hover {
                    background: #555;
                }
                .bestip-btn {
                    background: #2196F3;
                    padding: 6px 15px;
                    color: white;
                    border: none;
                    border-radius: 4px;
                    cursor: pointer;
                }
                .bestip-btn:hover {
                    background: #1976D2;
                }
                .save-status {
                    color: #666;
                }
                .notice-content {
                    display: none;
                    margin-top: 10px;
                    font-size: 13px;
                    color: #333;
                }
            </style>
        </head>
        <body>
            ################################################################<br>
            ${FileName} 优选订阅列表:<br>
            ---------------------------------------------------------------<br>
            &nbsp;&nbsp;<strong><a href="javascript:void(0);" id="noticeToggle" onclick="toggleNotice()">注意事项∨</a></strong><br>
            <div id="noticeContent" class="notice-content">
                ${decodeURIComponent(atob('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'))}
            </div>
            <div class="editor-container">
                ${hasKV ? `
                <textarea class="editor" 
                    placeholder="${decodeURIComponent(atob('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'))}"
                    id="content">${content}</textarea>
                <div class="save-container">
                    <button class="back-btn" onclick="goBack()">返回配置页</button>
                    <button class="bestip-btn" onclick="goBestIP()">在线优选IP</button>
                    <button class="save-btn" onclick="saveContent(this)">保存</button>
                    <span class="save-status" id="saveStatus"></span>
                </div>
                <br>
                ################################################################<br>
                ${cmad}
                ` : '<p>未绑定KV空间</p>'}
            </div>
    
            <script>
            if (document.querySelector('.editor')) {
                let timer;
                const textarea = document.getElementById('content');
                const originalContent = textarea.value;
    
                function goBack() {
                    const currentUrl = window.location.href;
                    const parentUrl = currentUrl.substring(0, currentUrl.lastIndexOf('/'));
                    window.location.href = parentUrl;
                }
    
                function goBestIP() {
                    const currentUrl = window.location.href;
                    const parentUrl = currentUrl.substring(0, currentUrl.lastIndexOf('/'));
                    window.location.href = parentUrl + '/bestip';
                }
    
                function replaceFullwidthColon() {
                    const text = textarea.value;
                    textarea.value = text.replace(/:/g, ':');
                }
                
                function saveContent(button) {
                    try {
                        const updateButtonText = (step) => {
                            button.textContent = \`保存中: \${step}\`;
                        };
                        // 检测是否为iOS设备
                        const isIOS = /iPad|iPhone|iPod/.test(navigator.userAgent);
                        
                        // 仅在非iOS设备上执行replaceFullwidthColon
                        if (!isIOS) {
                            replaceFullwidthColon();
                        }
                        updateButtonText('开始保存');
                        button.disabled = true;
                        // 获取textarea内容和原始内容
                        const textarea = document.getElementById('content');
                        if (!textarea) {
                            throw new Error('找不到文本编辑区域');
                        }
                        updateButtonText('获取内容');
                        let newContent;
                        let originalContent;
                        try {
                            newContent = textarea.value || '';
                            originalContent = textarea.defaultValue || '';
                        } catch (e) {
                            console.error('获取内容错误:', e);
                            throw new Error('无法获取编辑内容');
                        }
                        updateButtonText('准备状态更新函数');
                        const updateStatus = (message, isError = false) => {
                            const statusElem = document.getElementById('saveStatus');
                            if (statusElem) {
                                statusElem.textContent = message;
                                statusElem.style.color = isError ? 'red' : '#666';
                            }
                        };
                        updateButtonText('准备按钮重置函数');
                        const resetButton = () => {
                            button.textContent = '保存';
                            button.disabled = false;
                        };
                        if (newContent !== originalContent) {
                            updateButtonText('发送保存请求');
                            fetch(window.location.href, {
                                method: 'POST',
                                body: newContent,
                                headers: {
                                    'Content-Type': 'text/plain;charset=UTF-8'
                                },
                                cache: 'no-cache'
                            })
                            .then(response => {
                                updateButtonText('检查响应状态');
                                if (!response.ok) {
                                    throw new Error(\`HTTP error! status: \${response.status}\`);
                                }
                                updateButtonText('更新保存状态');
                                const now = new Date().toLocaleString();
                                document.title = \`编辑已保存 \${now}\`;
                                updateStatus(\`已保存 \${now}\`);
                            })
                            .catch(error => {
                                updateButtonText('处理错误');
                                console.error('Save error:', error);
                                updateStatus(\`保存失败: \${error.message}\`, true);
                            })
                            .finally(() => {
                                resetButton();
                            });
                        } else {
                            updateButtonText('检查内容变化');
                            updateStatus('内容未变化');
                            resetButton();
                        }
                    } catch (error) {
                        console.error('保存过程出错:', error);
                        button.textContent = '保存';
                        button.disabled = false;
                        const statusElem = document.getElementById('saveStatus');
                        if (statusElem) {
                            statusElem.textContent = \`错误: \${error.message}\`;
                            statusElem.style.color = 'red';
                        }
                    }
                }
    
                textarea.addEventListener('blur', saveContent);
                textarea.addEventListener('input', () => {
                    clearTimeout(timer);
                    timer = setTimeout(saveContent, 5000);
                });
            }
    
            function toggleNotice() {
                const noticeContent = document.getElementById('noticeContent');
                const noticeToggle = document.getElementById('noticeToggle');
                if (noticeContent.style.display === 'none' || noticeContent.style.display === '') {
                    noticeContent.style.display = 'block';
                    noticeToggle.textContent = '注意事项∧';
                } else {
                    noticeContent.style.display = 'none';
                    noticeToggle.textContent = '注意事项∨';
                }
            }
    
            // 初始化 noticeContent 的 display 属性
            document.addEventListener('DOMContentLoaded', () => {
                document.getElementById('noticeContent').style.display = 'none';
            });
            </script>
        </body>
        </html>
    `;

    return new Response(html, {
        headers: { "Content-Type": "text/html;charset=utf-8" }
    });
} catch (error) {
    console.error('处理请求时发生错误:', error);
    return new Response("服务器错误: " + error.message, {
        status: 500,
        headers: { "Content-Type": "text/plain;charset=utf-8" }
    });
}

}

async function resolveToIPv6(target) {

// 检查是否为IPv4
function isIPv4(str) {
    const parts = str.split('.');
    return parts.length === 4 && parts.every(part => {
        const num = parseInt(part, 10);
        return num >= 0 && num <= 255 && part === num.toString();
    });
}

// 检查是否为IPv6
function isIPv6(str) {
    return str.includes(':') && /^[0-9a-fA-F:]+$/.test(str);
}

// 获取域名的IPv4地址
async function fetchIPv4(domain) {
    const url = `https://cloudflare-dns.com/dns-query?name=${domain}&type=A`;
    const response = await fetch(url, {
        headers: { 'Accept': 'application/dns-json' }
    });

    if (!response.ok) throw new Error('DNS查询失败');

    const data = await response.json();
    const ipv4s = (data.Answer || [])
        .filter(record => record.type === 1)
        .map(record => record.data);

    if (ipv4s.length === 0) throw new Error('未找到IPv4地址');
    return ipv4s[Math.floor(Math.random() * ipv4s.length)];
}

// 查询NAT64 IPv6地址
async function queryNAT64(domain) {
    const socket = connect({
        hostname: isIPv6(DNS64Server) ? `[${DNS64Server}]` : DNS64Server,
        port: 53
    });

    const writer = socket.writable.getWriter();
    const reader = socket.readable.getReader();

    try {
        // 发送DNS查询
        const query = buildDNSQuery(domain);
        const queryWithLength = new Uint8Array(query.length + 2);
        queryWithLength[0] = query.length >> 8;
        queryWithLength[1] = query.length & 0xFF;
        queryWithLength.set(query, 2);
        await writer.write(queryWithLength);

        // 读取响应
        const response = await readDNSResponse(reader);
        const ipv6s = parseIPv6(response);

        return ipv6s.length > 0 ? ipv6s[0] : '未找到IPv6地址';
    } finally {
        await writer.close();
        await reader.cancel();
    }
}

// 构建DNS查询包
function buildDNSQuery(domain) {
    const buffer = new ArrayBuffer(512);
    const view = new DataView(buffer);
    let offset = 0;

    // DNS头部
    view.setUint16(offset, Math.floor(Math.random() * 65536)); offset += 2; // ID
    view.setUint16(offset, 0x0100); offset += 2; // 标志
    view.setUint16(offset, 1); offset += 2; // 问题数
    view.setUint16(offset, 0); offset += 6; // 答案数/权威数/附加数

    // 域名编码
    for (const label of domain.split('.')) {
        view.setUint8(offset++, label.length);
        for (let i = 0; i < label.length; i++) {
            view.setUint8(offset++, label.charCodeAt(i));
        }
    }
    view.setUint8(offset++, 0); // 结束标记

    // 查询类型和类
    view.setUint16(offset, 28); offset += 2; // AAAA记录
    view.setUint16(offset, 1); offset += 2; // IN类

    return new Uint8Array(buffer, 0, offset);
}

// 读取DNS响应
async function readDNSResponse(reader) {
    const chunks = [];
    let totalLength = 0;
    let expectedLength = null;

    while (true) {
        const { value, done } = await reader.read();
        if (done) break;

        chunks.push(value);
        totalLength += value.length;

        if (expectedLength === null && totalLength >= 2) {
            expectedLength = (chunks[0][0] << 8) | chunks[0][1];
        }

        if (expectedLength !== null && totalLength >= expectedLength + 2) {
            break;
        }
    }

    // 合并数据并跳过长度前缀
    const fullResponse = new Uint8Array(totalLength);
    let offset = 0;
    for (const chunk of chunks) {
        fullResponse.set(chunk, offset);
        offset += chunk.length;
    }

    return fullResponse.slice(2);
}

// 解析IPv6地址
function parseIPv6(response) {
    const view = new DataView(response.buffer);
    let offset = 12; // 跳过DNS头部

    // 跳过问题部分
    while (view.getUint8(offset) !== 0) {
        offset += view.getUint8(offset) + 1;
    }
    offset += 5;

    const answers = [];
    const answerCount = view.getUint16(6); // 答案数量

    for (let i = 0; i < answerCount; i++) {
        // 跳过名称
        if ((view.getUint8(offset) & 0xC0) === 0xC0) {
            offset += 2;
        } else {
            while (view.getUint8(offset) !== 0) {
                offset += view.getUint8(offset) + 1;
            }
            offset++;
        }

        const type = view.getUint16(offset); offset += 2;
        offset += 6; // 跳过类和TTL
        const dataLength = view.getUint16(offset); offset += 2;

        if (type === 28 && dataLength === 16) { // AAAA记录
            const parts = [];
            for (let j = 0; j < 8; j++) {
                parts.push(view.getUint16(offset + j * 2).toString(16));
            }
            answers.push(parts.join(':'));
        }
        offset += dataLength;
    }

    return answers;
}

function convertToNAT64IPv6(ipv4Address) {
    const parts = ipv4Address.split('.');
    if (parts.length !== 4) {
        throw new Error('无效的IPv4地址');
    }

    // 将每个部分转换为16进制
    const hex = parts.map(part => {
        const num = parseInt(part, 10);
        if (num < 0 || num > 255) {
            throw new Error('无效的IPv4地址段');
        }
        return num.toString(16).padStart(2, '0');
    });

    // 构造NAT64
    return DNS64Server.split('/96')[0] + hex[0] + hex[1] + ":" + hex[2] + hex[3];
}

try {
    // 判断输入类型并处理
    if (isIPv6(target)) return target; // IPv6直接返回
    const ipv4 = isIPv4(target) ? target : await fetchIPv4(target);
    const nat64 = DNS64Server.endsWith('/96') ? convertToNAT64IPv6(ipv4) : await queryNAT64(ipv4 + atob('LmlwLjA5MDIyNy54eXo='));
    return isIPv6(nat64) ? nat64 : atob('cHJveHlpcC5jbWxpdXNzc3MubmV0');
} catch (error) {
    console.error('解析错误:', error);
    return atob('cHJveHlpcC5jbWxpdXNzc3MubmV0');;
}

}

async function bestIP(request, env, txt = 'ADD.txt') {

const country = request.cf?.country || 'CN';
const url = new URL(request.url);

async function GetCFIPs(ipSource = 'official', targetPort = '443') {
    try {
        let response;
        if (ipSource === 'as13335') {
            // AS13335列表
            response = await fetch('https://raw.githubusercontent.com/ipverse/asn-ip/master/as/13335/ipv4-aggregated.txt');
        } else if (ipSource === 'as209242') {
            // AS209242列表
            response = await fetch('https://raw.githubusercontent.com/ipverse/asn-ip/master/as/209242/ipv4-aggregated.txt');
        } else if (ipSource === 'as24429') {
            // AS24429列表
            response = await fetch('https://raw.githubusercontent.com/ipverse/asn-ip/master/as/24429/ipv4-aggregated.txt');
        } else if (ipSource === 'as199524') {
            // AS199524列表
            response = await fetch('https://raw.githubusercontent.com/ipverse/asn-ip/master/as/199524/ipv4-aggregated.txt');
        } else if (ipSource === 'cm') {
            // CM整理列表
            response = await fetch('https://raw.githubusercontent.com/cmliu/cmliu/main/CF-CIDR.txt');
        } else if (ipSource === 'proxyip') {
            // 反代IP列表 (直接IP,非CIDR)
            response = await fetch('https://raw.githubusercontent.com/cmliu/ACL4SSR/main/baipiao.txt');
            const text = response.ok ? await response.text() : '';

            // 解析并过滤符合端口的IP
            const allLines = text.split('\n')
                .map(line => line.trim())
                .filter(line => line && !line.startsWith('#'));

            const validIps = [];

            for (const line of allLines) {
                const parsedIP = parseProxyIPLine(line, targetPort);
                if (parsedIP) {
                    validIps.push(parsedIP);
                }
            }

            console.log(`反代IP列表解析完成,端口${targetPort}匹配到${validIps.length}个有效IP`);

            // 如果超过1000个IP,随机选择1000个
            if (validIps.length > 1000) {
                const shuffled = [...validIps].sort(() => 0.5 - Math.random());
                const selectedIps = shuffled.slice(0, 1000);
                console.log(`IP数量超过1000个,随机选择了${selectedIps.length}个IP`);
                return selectedIps;
            } else {
                return validIps;
            }
        } else {
            // CF官方列表 (默认)
            response = await fetch('https://www.cloudflare.com/ips-v4/');
        }

        const text = response.ok ? await response.text() : `173.245.48.0/20

103.21.244.0/22
103.22.200.0/22
103.31.4.0/22
141.101.64.0/18
108.162.192.0/18
190.93.240.0/20
188.114.96.0/20
197.234.240.0/22
198.41.128.0/17
162.158.0.0/15
104.16.0.0/13
104.24.0.0/14
172.64.0.0/13
131.0.72.0/22`;

        const cidrs = text.split('\n').filter(line => line.trim() && !line.startsWith('#'));

        const ips = new Set(); // 使用Set去重
        const targetCount = 1000;
        let round = 1;

        // 不断轮次生成IP直到达到目标数量
        while (ips.size < targetCount) {
            console.log(`第${round}轮生成IP,当前已有${ips.size}个`);

            // 每轮为每个CIDR生成指定数量的IP
            for (const cidr of cidrs) {
                if (ips.size >= targetCount) break;

                const cidrIPs = generateIPsFromCIDR(cidr.trim(), round);
                cidrIPs.forEach(ip => ips.add(ip));

                console.log(`CIDR ${cidr} 第${round}轮生成${cidrIPs.length}个IP,总计${ips.size}个`);
            }

            round++;

            // 防止无限循环
            if (round > 100) {
                console.warn('达到最大轮次限制,停止生成');
                break;
            }
        }

        console.log(`最终生成${ips.size}个不重复IP`);
        return Array.from(ips).slice(0, targetCount);
    } catch (error) {
        console.error('获取CF IPs失败:', error);
        return [];
    }
}

// 新增:解析反代IP行的函数
function parseProxyIPLine(line, targetPort) {
    try {
        // 移除首尾空格
        line = line.trim();
        if (!line) return null;

        let ip = '';
        let port = '';
        let comment = '';

        // 处理注释部分
        if (line.includes('#')) {
            const parts = line.split('#');
            const mainPart = parts[0].trim();
            comment = parts[1].trim();

            // 检查主要部分是否包含端口
            if (mainPart.includes(':')) {
                const ipPortParts = mainPart.split(':');
                if (ipPortParts.length === 2) {
                    ip = ipPortParts[0].trim();
                    port = ipPortParts[1].trim();
                } else {
                    // 格式不正确,如":844347.254.171.15:8443"
                    console.warn(`无效的IP:端口格式: ${line}`);
                    return null;
                }
            } else {
                // 没有端口,默认443
                ip = mainPart;
                port = '443';
            }
        } else {
            // 没有注释
            if (line.includes(':')) {
                const ipPortParts = line.split(':');
                if (ipPortParts.length === 2) {
                    ip = ipPortParts[0].trim();
                    port = ipPortParts[1].trim();
                } else {
                    // 格式不正确
                    console.warn(`无效的IP:端口格式: ${line}`);
                    return null;
                }
            } else {
                // 只有IP,默认443端口
                ip = line;
                port = '443';
            }
        }

        // 验证IP格式
        if (!isValidIP(ip)) {
            console.warn(`无效的IP地址: ${ip} (来源行: ${line})`);
            return null;
        }

        // 验证端口格式
        const portNum = parseInt(port);
        if (isNaN(portNum) || portNum < 1 || portNum > 65535) {
            console.warn(`无效的端口号: ${port} (来源行: ${line})`);
            return null;
        }

        // 检查端口是否匹配
        if (port !== targetPort) {
            return null; // 端口不匹配,过滤掉
        }

        // 构建返回格式
        if (comment) {
            return `${ip}:${port}#${comment}`;
        } else {
            return `${ip}:${port}`;
        }

    } catch (error) {
        console.error(`解析IP行失败: ${line}`, error);
        return null;
    }
}

// 新增:验证IP地址格式的函数
function isValidIP(ip) {
    const ipRegex = /^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/;
    const match = ip.match(ipRegex);

    if (!match) return false;

    // 检查每个数字是否在0-255范围内
    for (let i = 1; i <= 4; i++) {
        const num = parseInt(match[i]);
        if (num < 0 || num > 255) {
            return false;
        }
    }

    return true;
}

function generateIPsFromCIDR(cidr, count = 1) {
    const [network, prefixLength] = cidr.split('/');
    const prefix = parseInt(prefixLength);

    // 将IP地址转换为32位整数
    const ipToInt = (ip) => {
        return ip.split('.').reduce((acc, octet) => (acc << 8) + parseInt(octet), 0) >>> 0;
    };

    // 将32位整数转换为IP地址
    const intToIP = (int) => {
        return [
            (int >>> 24) & 255,
            (int >>> 16) & 255,
            (int >>> 8) & 255,
            int & 255
        ].join('.');
    };

    const networkInt = ipToInt(network);
    const hostBits = 32 - prefix;
    const numHosts = Math.pow(2, hostBits);

    // 限制生成数量不超过该CIDR的可用主机数
    const maxHosts = numHosts - 2; // -2 排除网络地址和广播地址
    const actualCount = Math.min(count, maxHosts);
    const ips = new Set();

    // 如果可用主机数太少,直接返回空数组
    if (maxHosts <= 0) {
        return [];
    }

    // 生成指定数量的随机IP
    let attempts = 0;
    const maxAttempts = actualCount * 10; // 防止无限循环

    while (ips.size < actualCount && attempts < maxAttempts) {
        const randomOffset = Math.floor(Math.random() * maxHosts) + 1; // +1 避免网络地址
        const randomIP = intToIP(networkInt + randomOffset);
        ips.add(randomIP);
        attempts++;
    }

    return Array.from(ips);
}

// POST请求处理
if (request.method === "POST") {
    if (!env.KV) return new Response("未绑定KV空间", { status: 400 });

    try {
        const contentType = request.headers.get('Content-Type');

        // 处理JSON格式的保存/追加请求
        if (contentType && contentType.includes('application/json')) {
            const data = await request.json();
            const action = url.searchParams.get('action') || 'save';

            if (!data.ips || !Array.isArray(data.ips)) {
                return new Response(JSON.stringify({ error: 'Invalid IP list' }), {
                    status: 400,
                    headers: { 'Content-Type': 'application/json' }
                });
            }

            if (action === 'append') {
                // 追加模式
                const existingContent = await env.KV.get(txt) || '';
                const newContent = data.ips.join('\n');

                // 合并内容并去重
                const existingLines = existingContent ?
                    existingContent.split('\n').map(line => line.trim()).filter(line => line) :
                    [];
                const newLines = newContent.split('\n').map(line => line.trim()).filter(line => line);

                // 使用Set进行去重
                const allLines = [...existingLines, ...newLines];
                const uniqueLines = [...new Set(allLines)];
                const combinedContent = uniqueLines.join('\n');

                // 检查合并后的内容大小
                if (combinedContent.length > 24 * 1024 * 1024) {
                    return new Response(JSON.stringify({
                        error: `追加失败:合并后内容过大(${(combinedContent.length / 1024 / 1024).toFixed(2)}MB),超过KV存储限制(24MB)`
                    }), {
                        status: 400,
                        headers: { 'Content-Type': 'application/json' }
                    });
                }

                await env.KV.put(txt, combinedContent);

                const addedCount = uniqueLines.length - existingLines.length;
                const duplicateCount = newLines.length - addedCount;

                let message = `成功追加 ${addedCount} 个新的优选IP(原有 ${existingLines.length} 个,现共 ${uniqueLines.length} 个)`;
                if (duplicateCount > 0) {
                    message += `,已去重 ${duplicateCount} 个重复项`;
                }

                return new Response(JSON.stringify({
                    success: true,
                    message: message
                }), {
                    headers: { 'Content-Type': 'application/json' }
                });
            } else {
                // 保存模式(覆盖)
                const content = data.ips.join('\n');

                // 检查内容大小
                if (content.length > 24 * 1024 * 1024) {
                    return new Response(JSON.stringify({
                        error: '内容过大,超过KV存储限制(24MB)'
                    }), {
                        status: 400,
                        headers: { 'Content-Type': 'application/json' }
                    });
                }

                await env.KV.put(txt, content);

                return new Response(JSON.stringify({
                    success: true,
                    message: `成功保存 ${data.ips.length} 个优选IP`
                }), {
                    headers: { 'Content-Type': 'application/json' }
                });
            }
        } else {
            // 处理普通文本格式的保存请求(兼容原有功能)
            const content = await request.text();
            await env.KV.put(txt, content);
            return new Response("保存成功");
        }

    } catch (error) {
        console.error('处理POST请求时发生错误:', error);
        return new Response(JSON.stringify({
            error: '操作失败: ' + error.message
        }), {
            status: 500,
            headers: { 'Content-Type': 'application/json' }
        });
    }
}

// GET请求部分
let content = '';
let hasKV = !!env.KV;

if (hasKV) {
    try {
        content = await env.KV.get(txt) || '';
    } catch (error) {
        console.error('读取KV时发生错误:', error);
        content = '读取数据时发生错误: ' + error.message;
    }
}

// 移除初始IP加载,改为在前端动态加载
const cfIPs = []; // 初始为空数组

// 判断是否为中国用户
const isChina = country === 'CN';
const countryDisplayClass = isChina ? '' : 'proxy-warning';
const countryDisplayText = isChina ? `${country}` : `${country} ⚠️`;

const html = `
<!DOCTYPE html>
<html>
<head>
<title>Cloudflare IP优选</title>
<style>
    body {
        width: 80%;
        margin: 0 auto;
        font-family: Tahoma, Verdana, Arial, sans-serif;
        padding: 20px;
    }
    .ip-list {
        background-color: #f5f5f5;
        padding: 10px;
        border-radius: 5px;
        max-height: 400px;
        overflow-y: auto;
    }
    .ip-item {
        margin: 2px 0;
        font-family: monospace;
    }
    .stats {
        background-color: #e3f2fd;
        padding: 15px;
        border-radius: 5px;
        margin: 20px 0;
    }
    .test-info {
        margin-top: 15px;
        padding: 12px;
        background-color: #f3e5f5;
        border: 1px solid #ce93d8;
        border-radius: 6px;
        color: #4a148c;
    }
    .test-info p {
        margin: 0;
        font-size: 14px;
        line-height: 1.5;
    }
    .proxy-warning {
        color: #d32f2f !important;
        font-weight: bold !important;
        font-size: 1.1em;
    }
    .warning-notice {
        background-color: #ffebee;
        border: 2px solid #f44336;
        border-radius: 8px;
        padding: 15px;
        margin: 15px 0;
        color: #c62828;
    }
    .warning-notice h3 {
        margin: 0 0 10px 0;
        color: #d32f2f;
        font-size: 1.2em;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .warning-notice p {
        margin: 8px 0;
        line-height: 1.5;
    }
    .warning-notice ul {
        margin: 10px 0 10px 20px;
        line-height: 1.6;
    }
    .test-controls {
        margin: 20px 0;
        padding: 15px;
        background-color: #f9f9f9;
        border-radius: 5px;
    }
    .port-selector {
        margin: 10px 0;
    }
    .port-selector label {
        font-weight: bold;
        margin-right: 10px;
    }
    .port-selector select {
        padding: 5px 10px;
        font-size: 14px;
        border: 1px solid #ccc;
        border-radius: 3px;
    }
    .button-group {
        display: flex;
        gap: 10px;
        flex-wrap: wrap;
        margin-top: 15px;
    }
    .test-button {
        background-color: #4CAF50;
        color: white;
        padding: 15px 32px;
        text-align: center;
        text-decoration: none;
        display: inline-block;
        font-size: 16px;
        cursor: pointer;
        border: none;
        border-radius: 4px;
        transition: background-color 0.3s;
    }
    .test-button:disabled {
        background-color: #cccccc;
        cursor: not-allowed;
    }
    .save-button {
        background-color: #2196F3;
        color: white;
        padding: 15px 32px;
        text-align: center;
        text-decoration: none;
        display: inline-block;
        font-size: 16px;
        cursor: pointer;
        border: none;
        border-radius: 4px;
        transition: background-color 0.3s;
    }
    .save-button:disabled {
        background-color: #cccccc;
        cursor: not-allowed;
    }
    .save-button:not(:disabled):hover {
        background-color: #1976D2;
    }
    .append-button {
        background-color: #FF9800;
        color: white;
        padding: 15px 32px;
        text-align: center;
        text-decoration: none;
        display: inline-block;
        font-size: 16px;
        cursor: pointer;
        border: none;
        border-radius: 4px;
        transition: background-color 0.3s;
    }
    .append-button:disabled {
        background-color: #cccccc;
        cursor: not-allowed;
    }
    .append-button:not(:disabled):hover {
        background-color: #F57C00;
    }
    .edit-button {
        background-color: #9C27B0;
        color: white;
        padding: 15px 32px;
        text-align: center;
        text-decoration: none;
        display: inline-block;
        font-size: 16px;
        cursor: pointer;
        border: none;
        border-radius: 4px;
        transition: background-color 0.3s;
    }
    .edit-button:hover {
        background-color: #7B1FA2;
    }
    .back-button {
        background-color: #607D8B;
        color: white;
        padding: 15px 32px;
        text-align: center;
        text-decoration: none;
        display: inline-block;
        font-size: 16px;
        cursor: pointer;
        border: none;
        border-radius: 4px;
        transition: background-color 0.3s;
    }
    .back-button:hover {
        background-color: #455A64;
    }
    .save-warning {
        margin-top: 10px;
        background-color: #fff3e0;
        border: 2px solid #ff9800;
        border-radius: 6px;
        padding: 12px;
        color: #e65100;
        font-weight: bold;
    }
    .save-warning small {
        font-size: 14px;
        line-height: 1.5;
        display: block;
    }
    .message {
        padding: 10px;
        margin: 10px 0;
        border-radius: 4px;
        display: none;
    }
    .message.success {
        background-color: #d4edda;
        color: #155724;
        border: 1px solid #c3e6cb;
    }
    .message.error {
        background-color: #f8d7da;
        color: #721c24;
        border: 1px solid #f5c6cb;
    }
    .progress {
        width: 100%;
        background-color: #f0f0f0;
        border-radius: 5px;
        margin: 10px 0;
    }
    .progress-bar {
        width: 0%;
        height: 20px;
        background-color: #4CAF50;
        border-radius: 5px;
        transition: width 0.3s;
    }
    .good-latency { color: #4CAF50; font-weight: bold; }
    .medium-latency { color: #FF9800; font-weight: bold; }
    .bad-latency { color: #f44336; font-weight: bold; }
    .show-more-section {
        text-align: center;
        margin: 10px 0;
        padding: 10px;
        background-color: #f0f0f0;
        border-radius: 5px;
    }
    .show-more-btn {
        background-color: #607D8B;
        color: white;
        padding: 8px 20px;
        border: none;
        border-radius: 4px;
        cursor: pointer;
        font-size: 14px;
        transition: background-color 0.3s;
    }
    .show-more-btn:hover {
        background-color: #455A64;
    }
    .ip-display-info {
        font-size: 12px;
        color: #666;
        margin-bottom: 5px;
    }
    .save-tip {
        margin-top: 15px;
        padding: 12px;
        background-color: #e8f5e8;
        border: 1px solid #4CAF50;
        border-radius: 6px;
        color: #2e7d32;
        font-size: 14px;
        line-height: 1.5;
    }
    .save-tip strong {
        color: #1b5e20;
    }
    .warm-tips {
        margin: 20px 0;
        padding: 15px;
        background-color: #fff3e0;
        border: 2px solid #ff9800;
        border-radius: 8px;
        color: #e65100;
    }
    .warm-tips h3 {
        margin: 0 0 10px 0;
        color: #f57c00;
        font-size: 1.1em;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .warm-tips p {
        margin: 8px 0;
        line-height: 1.6;
        font-size: 14px;
    }
    .warm-tips ul {
        margin: 10px 0 10px 20px;
        line-height: 1.6;
    }
    .warm-tips li {
        margin: 5px 0;
        font-size: 14px;
    }
    .warm-tips strong {
        color: #e65100;
        font-weight: bold;
    }
</style>
</head>
<body>
<h1>在线优选IP</h1>

${!isChina ? `
<div class="warning-notice">
    <h3>🚨 代理检测警告</h3>
    <p><strong>检测到您当前很可能处于代理/VPN环境中!</strong></p>
    <p>在代理状态下进行的IP优选测试结果将不准确,可能导致:</p>
    <ul>
        <li>延迟数据失真,无法反映真实网络状况</li>
        <li>优选出的IP在直连环境下表现不佳</li>
        <li>测试结果对实际使用场景参考价值有限</li>
    </ul>
    <p><strong>建议操作:</strong>请关闭所有代理软件(VPN、科学上网工具等),确保处于直连网络环境后重新访问本页面。</p>
</div>
` : ''}

<div class="stats">
    <h2>统计信息</h2>
    <p><strong>您的国家:</strong><span class="${countryDisplayClass}">${countryDisplayText}</span></p>
    <p><strong>获取到的IP总数:</strong><span id="ip-count">点击开始测试后加载</span></p>
    <p><strong>测试进度:</strong><span id="progress-text">未开始</span></p>
    <div class="progress">
        <div class="progress-bar" id="progress-bar"></div>
    </div>
    <div class="test-info">
        <p><strong>📊 测试说明:</strong>当前优选方式仅进行网络延迟测试,主要评估连接响应速度,并未包含带宽速度测试。延迟测试可快速筛选出响应最快的IP节点,适合日常使用场景的初步优选。</p>
    </div>
</div>

<div class="warm-tips" id="warm-tips">
    <h3>💡 温馨提示</h3>
    <p><strong>优选完成但测试"真连接延迟"为 -1?</strong>这很有可能是您的网络运营商对你的请求进行了阻断。</p>
    <p><strong>建议尝试以下解决方案:</strong></p>
    <ul>
        <li><strong>更换端口:</strong>尝试使用其他端口(如 2053、2083、2087、2096、8443)</li>
        <li><strong>更换IP库:</strong>切换到不同的IP来源(CM整理列表、AS13335、AS209242列表等,但如果你不明白AS24429和AS199524意味着什么,那就不要选。)</li>
        <li><strong>更换自定义域名:</strong>如果您使用的还是免费域名,那么您更应该尝试一下更换自定义域</li>
    </ul>
    <p>💡 <strong>小贴士:</strong>不同地区和网络环境对各端口的支持情况可能不同,多尝试几个端口组合通常能找到适合的IP。</p>
</div>

<div class="test-controls">
    <div class="port-selector">
        <label for="ip-source-select">IP库:</label>
        <select id="ip-source-select">
            <option value="official">CF官方列表</option>
            <option value="cm">CM整理列表</option>
            <option value="as13335">AS13335列表</option>
            <option value="as209242">AS209242列表</option>
            <option value="as24429">AS24429列表(Alibaba)</option>
            <option value="as199524">AS199524列表(G-Core)</option>
            <option value="proxyip">反代IP列表</option>
        </select>

        <label for="port-select" style="margin-left: 20px;">端口:</label>
        <select id="port-select">
            <option value="443">443</option>
            <option value="2053">2053</option>
            <option value="2083">2083</option>
            <option value="2087">2087</option>
            <option value="2096">2096</option>
            <option value="8443">8443</option>
        </select>
    </div>
    <div class="button-group">
        <button class="test-button" id="test-btn" onclick="startTest()">开始延迟测试</button>
        <button class="save-button" id="save-btn" onclick="saveIPs()" disabled>覆盖保存优选IP</button>
        <button class="append-button" id="append-btn" onclick="appendIPs()" disabled>追加保存优选IP</button>
        <button class="edit-button" id="edit-btn" onclick="goEdit()">编辑优选列表</button>
        <button class="back-button" id="back-btn" onclick="goBack()">返回配置页</button>
    </div>
    <div class="save-warning">
        <small>⚠️ 重要提醒:"覆盖保存优选IP"会完全覆盖当前 addresses/ADD 优选内容,请慎重考虑!建议优先使用"追加保存优选IP"功能。</small>
    </div>
    <div class="save-tip">
        <strong>💡 保存提示:</strong>[<strong>覆盖保存优选IP</strong>] 和 [<strong>追加保存优选IP</strong>] 功能仅会保存延迟最低的<strong>前16个优选IP</strong>。如需添加更多IP或进行自定义编辑,请使用 [<strong>编辑优选列表</strong>] 功能。
    </div>
    <div id="message" class="message"></div>
</div>

<h2>IP列表 <span id="result-count"></span></h2>
<div class="ip-display-info" id="ip-display-info"></div>
<div class="ip-list" id="ip-list">
    <div class="ip-item">请选择端口和IP库,然后点击"开始延迟测试"加载IP列表</div>
</div>
<div class="show-more-section" id="show-more-section" style="display: none;">
    <button class="show-more-btn" id="show-more-btn" onclick="toggleShowMore()">显示更多</button>
</div>

<script>
    let originalIPs = []; // 改为动态加载
    let testResults = [];
    let displayedResults = []; // 新增:存储当前显示的结果
    let showingAll = false; // 新增:标记是否显示全部内容
    let currentDisplayType = 'loading'; // 新增:当前显示类型 'loading' | 'results'
    
    // 新增:本地存储管理
    const StorageKeys = {
        PORT: 'cf-ip-test-port',
        IP_SOURCE: 'cf-ip-test-source'
    };
    
    // 初始化页面设置
    function initializeSettings() {
        const portSelect = document.getElementById('port-select');
        const ipSourceSelect = document.getElementById('ip-source-select');
        
        // 从本地存储读取上次的选择
        const savedPort = localStorage.getItem(StorageKeys.PORT);
        const savedIPSource = localStorage.getItem(StorageKeys.IP_SOURCE);
        
        // 恢复端口选择
        if (savedPort && portSelect.querySelector(\`option[value="\${savedPort}"]\`)) {
            portSelect.value = savedPort;
        } else {
            portSelect.value = '8443'; // 默认值
        }
        
        // 恢复IP库选择
        if (savedIPSource && ipSourceSelect.querySelector(\`option[value="\${savedIPSource}"]\`)) {
            ipSourceSelect.value = savedIPSource;
        } else {
            ipSourceSelect.value = 'official'; // 默认值改为CF官方列表
        }
        
        // 添加事件监听器保存选择
        portSelect.addEventListener('change', function() {
            localStorage.setItem(StorageKeys.PORT, this.value);
        });
        
        ipSourceSelect.addEventListener('change', function() {
            localStorage.setItem(StorageKeys.IP_SOURCE, this.value);
        });
    }
    
    // 页面加载完成后初始化设置
    document.addEventListener('DOMContentLoaded', initializeSettings);
    
    // 新增:切换显示更多/更少
    function toggleShowMore() {
        // 在测试过程中不允许切换显示
        if (currentDisplayType === 'testing') {
            return;
        }
        
        showingAll = !showingAll;
        
        if (currentDisplayType === 'loading') {
            displayLoadedIPs();
        } else if (currentDisplayType === 'results') {
            displayResults();
        }
    }
    
    // 新增:显示加载的IP列表
    function displayLoadedIPs() {
        const ipList = document.getElementById('ip-list');
        const showMoreSection = document.getElementById('show-more-section');
        const showMoreBtn = document.getElementById('show-more-btn');
        const ipDisplayInfo = document.getElementById('ip-display-info');
        
        if (originalIPs.length === 0) {
            ipList.innerHTML = '<div class="ip-item">加载IP列表失败,请重试</div>';
            showMoreSection.style.display = 'none';
            ipDisplayInfo.textContent = '';
            return;
        }
        
        const displayCount = showingAll ? originalIPs.length : Math.min(originalIPs.length, 16);
        const displayIPs = originalIPs.slice(0, displayCount);
        
        // 更新显示信息
        if (originalIPs.length <= 16) {
            ipDisplayInfo.textContent = \`显示全部 \${originalIPs.length} 个IP\`;
            showMoreSection.style.display = 'none';
        } else {
            ipDisplayInfo.textContent = \`显示前 \${displayCount} 个IP,共加载 \${originalIPs.length} 个IP\`;
            // 只在非测试状态下显示"显示更多"按钮
            if (currentDisplayType !== 'testing') {
                showMoreSection.style.display = 'block';
                showMoreBtn.textContent = showingAll ? '显示更少' : '显示更多';
                showMoreBtn.disabled = false;
            } else {
                showMoreSection.style.display = 'none';
            }
        }
        
        // 显示IP列表
        ipList.innerHTML = displayIPs.map(ip => \`<div class="ip-item">\${ip}</div>\`).join('');
    }
    
    function showMessage(text, type = 'success') {
        const messageDiv = document.getElementById('message');
        messageDiv.textContent = text;
        messageDiv.className = \`message \${type}\`;
        messageDiv.style.display = 'block';
        
        // 3秒后自动隐藏消息
        setTimeout(() => {
            messageDiv.style.display = 'none';
        }, 3000);
    }
    
    function updateButtonStates() {
        const saveBtn = document.getElementById('save-btn');
        const appendBtn = document.getElementById('append-btn');
        const hasResults = displayedResults.length > 0;
        
        saveBtn.disabled = !hasResults;
        appendBtn.disabled = !hasResults;
    }
    
    function disableAllButtons() {
        const testBtn = document.getElementById('test-btn');
        const saveBtn = document.getElementById('save-btn');
        const appendBtn = document.getElementById('append-btn');
        const editBtn = document.getElementById('edit-btn');
        const backBtn = document.getElementById('back-btn');
        const portSelect = document.getElementById('port-select');
        const ipSourceSelect = document.getElementById('ip-source-select');
        
        testBtn.disabled = true;
        saveBtn.disabled = true;
        appendBtn.disabled = true;
        editBtn.disabled = true;
        backBtn.disabled = true;
        portSelect.disabled = true;
        ipSourceSelect.disabled = true;
    }
    
    function enableButtons() {
        const testBtn = document.getElementById('test-btn');
        const editBtn = document.getElementById('edit-btn');
        const backBtn = document.getElementById('back-btn');
        const portSelect = document.getElementById('port-select');
        const ipSourceSelect = document.getElementById('ip-source-select');
        
        testBtn.disabled = false;
        editBtn.disabled = false;
        backBtn.disabled = false;
        portSelect.disabled = false;
        ipSourceSelect.disabled = false;
        updateButtonStates();
    }
    
    async function saveIPs() {
        if (displayedResults.length === 0) {
            showMessage('没有可保存的IP结果', 'error');
            return;
        }
        
        const saveBtn = document.getElementById('save-btn');
        const originalText = saveBtn.textContent;
        
        // 禁用所有按钮
        disableAllButtons();
        saveBtn.textContent = '保存中...';
        
        try {
            // 只保存前16个最优IP
            const saveCount = Math.min(displayedResults.length, 16);
            const ips = displayedResults.slice(0, saveCount).map(result => result.display);
            
            const response = await fetch('?action=save', {
                method: 'POST',
                headers: {
                    'Content-Type': 'application/json'
                },
                body: JSON.stringify({ ips })
            });
            
            const data = await response.json();
            
            if (data.success) {
                showMessage(\`\${data.message}(已保存前\${saveCount}个最优IP)\`, 'success');
            } else {
                showMessage(data.error || '保存失败', 'error');
            }
            
        } catch (error) {
            showMessage('保存失败: ' + error.message, 'error');
        } finally {
            saveBtn.textContent = originalText;
            enableButtons();
        }
    }
    
    async function appendIPs() {
        if (displayedResults.length === 0) {
            showMessage('没有可追加的IP结果', 'error');
            return;
        }
        
        const appendBtn = document.getElementById('append-btn');
        const originalText = appendBtn.textContent;
        
        // 禁用所有按钮
        disableAllButtons();
        appendBtn.textContent = '追加中...';
        
        try {
            // 只追加前16个最优IP
            const saveCount = Math.min(displayedResults.length, 16);
            const ips = displayedResults.slice(0, saveCount).map(result => result.display);
            
            const response = await fetch('?action=append', {
                method: 'POST',
                headers: {
                    'Content-Type': 'application/json'
                },
                body: JSON.stringify({ ips })
            });
            
            const data = await response.json();
            
            if (data.success) {
                showMessage(\`\${data.message}(已追加前\${saveCount}个最优IP)\`, 'success');
            } else {
                showMessage(data.error || '追加失败', 'error');
            }
            
        } catch (error) {
            showMessage('追加失败: ' + error.message, 'error');
        } finally {
            appendBtn.textContent = originalText;
            enableButtons();
        }
    }
    
    function goEdit() {
        const currentUrl = window.location.href;
        const parentUrl = currentUrl.substring(0, currentUrl.lastIndexOf('/'));
        window.location.href = parentUrl + '/edit';
    }
    
    function goBack() {
        const currentUrl = window.location.href;
        const parentUrl = currentUrl.substring(0, currentUrl.lastIndexOf('/'));
        window.location.href = parentUrl;
    }
    
    async function testIP(ip, port) {
        const timeout = 999;
        
        // 解析IP格式
        const parsedIP = parseIPFormat(ip, port);
        if (!parsedIP) {
            return null;
        }
        
        // 第一次测试
        const firstResult = await singleTest(parsedIP.host, parsedIP.port, timeout);
        if (!firstResult) {
            return null; // 第一次测试失败,直接返回
        }
        
        // 第一次测试成功,再进行第二次测试
        console.log(\`IP \${parsedIP.host}:\${parsedIP.port} 第一次测试成功: \${firstResult.latency}ms,进行第二次测试...\`);
        
        const results = [firstResult];
        
        // 进行第二次测试
        const secondResult = await singleTest(parsedIP.host, parsedIP.port, timeout);
        if (secondResult) {
            results.push(secondResult);
            console.log(\`IP \${parsedIP.host}:\${parsedIP.port} 第二次测试: \${secondResult.latency}ms\`);
        }
        
        // 取最低延迟
        const bestResult = results.reduce((best, current) => 
            current.latency < best.latency ? current : best
        );
        
        const displayLatency = Math.floor(bestResult.latency / 2);
        
        console.log(\`IP \${parsedIP.host}:\${parsedIP.port} 最终结果: \${displayLatency}ms (原始: \${bestResult.latency}ms, 共\${results.length}次有效测试)\`);
        
        // 生成显示格式
        const comment = parsedIP.comment || 'CF优选IP';
        const display = \`\${parsedIP.host}:\${parsedIP.port}#\${comment} \${displayLatency}ms\`;
        
        return {
            ip: parsedIP.host,
            port: parsedIP.port,
            latency: displayLatency,
            originalLatency: bestResult.latency,
            testCount: results.length,
            comment: comment,
            display: display
        };
    }
    
    // 新增:解析IP格式的函数
    function parseIPFormat(ipString, defaultPort) {
        try {
            let host, port, comment;
            
            // 先处理注释部分(#之后的内容)
            let mainPart = ipString;
            if (ipString.includes('#')) {
                const parts = ipString.split('#');
                mainPart = parts[0];
                comment = parts[1];
            }
            
            // 处理端口部分
            if (mainPart.includes(':')) {
                const parts = mainPart.split(':');
                host = parts[0];
                port = parseInt(parts[1]);
            } else {
                host = mainPart;
                port = parseInt(defaultPort);
            }
            
            // 验证IP格式
            if (!host || !port || isNaN(port)) {
                return null;
            }
            
            return {
                host: host.trim(),
                port: port,
                comment: comment ? comment.trim() : null
            };
        } catch (error) {
            console.error('解析IP格式失败:', ipString, error);
            return null;
        }
    }
    
    async function singleTest(ip, port, timeout) {
        const startTime = Date.now();
        
        try {
            const controller = new AbortController();
            const timeoutId = setTimeout(() => controller.abort(), timeout);
            
            const response = await fetch(\`https://\${ip}:\${port}/cdn-cgi/trace\`, {
                signal: controller.signal,
                mode: 'cors'
            });
            
            clearTimeout(timeoutId);
            // 如果请求成功了,说明这个IP不是我们要的
            return null;
            
        } catch (error) {
            const latency = Date.now() - startTime;
            
            // 检查是否是真正的超时(接近设定的timeout时间)
            if (latency >= timeout - 50) {
                return null;
            }
            
            // 检查是否是 Failed to fetch 错误(通常是SSL/证书错误)
            if (error.name === 'TypeError' && error.message.includes('Failed to fetch')) {
                return {
                    ip: ip,
                    port: port,
                    latency: latency
                };
            }
            
            return null;
        }
    }
    
    async function testIPsWithConcurrency(ips, port, maxConcurrency = 32) {
        const results = [];
        const totalIPs = ips.length;
        let completedTests = 0;
        
        const progressBar = document.getElementById('progress-bar');
        const progressText = document.getElementById('progress-text');
        
        // 创建工作队列
        let index = 0;
        
        async function worker() {
            while (index < ips.length) {
                const currentIndex = index++;
                const ip = ips[currentIndex];
                
                const result = await testIP(ip, port);
                if (result) {
                    results.push(result);
                }
                
                completedTests++;
                
                // 更新进度
                const progress = (completedTests / totalIPs) * 100;
                progressBar.style.width = progress + '%';
                progressText.textContent = \`\${completedTests}/\${totalIPs} (\${progress.toFixed(1)}%) - 有效IP: \${results.length}\`;
            }
        }
        
        // 创建工作线程
        const workers = Array(Math.min(maxConcurrency, ips.length))
            .fill()
            .map(() => worker());
        
        await Promise.all(workers);
        
        return results;
    }
    
    async function startTest() {
        const testBtn = document.getElementById('test-btn');
        const portSelect = document.getElementById('port-select');
        const ipSourceSelect = document.getElementById('ip-source-select');
        const progressBar = document.getElementById('progress-bar');
        const progressText = document.getElementById('progress-text');
        const ipList = document.getElementById('ip-list');
        const resultCount = document.getElementById('result-count');
        const ipCount = document.getElementById('ip-count');
        const ipDisplayInfo = document.getElementById('ip-display-info');
        const showMoreSection = document.getElementById('show-more-section');
        
        const selectedPort = portSelect.value;
        const selectedIPSource = ipSourceSelect.value;
        
        // 保存当前选择到本地存储
        localStorage.setItem(StorageKeys.PORT, selectedPort);
        localStorage.setItem(StorageKeys.IP_SOURCE, selectedIPSource);
        
        testBtn.disabled = true;
        testBtn.textContent = '加载IP列表...';
        portSelect.disabled = true;
        ipSourceSelect.disabled = true;
        testResults = [];
        displayedResults = []; // 重置显示结果
        showingAll = false; // 重置显示状态
        currentDisplayType = 'loading'; // 设置当前显示类型
        ipList.innerHTML = '<div class="ip-item">正在加载IP列表,请稍候...</div>';
        ipDisplayInfo.textContent = '';
        showMoreSection.style.display = 'none';
        updateButtonStates(); // 更新按钮状态
        
        // 重置进度条
        progressBar.style.width = '0%';
        
        // 根据IP库类型显示对应的加载信息
        let ipSourceName = '';
        switch(selectedIPSource) {
            case 'official':
                ipSourceName = 'CF官方';
                break;
            case 'cm':
                ipSourceName = 'CM整理';
                break;
            case 'as13335':
                ipSourceName = 'CF全段';
                break;
            case 'as209242':
                ipSourceName = 'CF非官方';
                break;
            case 'as24429':
                ipSourceName = 'Alibaba';
                break;
            case 'as199524':
                ipSourceName = 'G-Core';
                break;
            case 'proxyip':
                ipSourceName = '反代IP';
                break;
            default:
                ipSourceName = '未知';
        }
        
        progressText.textContent = \`正在加载 \${ipSourceName} IP列表...\`;
        
        // 加载IP列表
        originalIPs = await loadIPs(selectedIPSource, selectedPort);

        if (originalIPs.length === 0) {
            ipList.innerHTML = '<div class="ip-item">加载IP列表失败,请重试</div>';
            ipCount.textContent = '0 个';
            testBtn.disabled = false;
            testBtn.textContent = '开始延迟测试';
            portSelect.disabled = false;
            ipSourceSelect.disabled = false;
            progressText.textContent = '加载失败';
            return;
        }
        
        // 更新IP数量显示
        ipCount.textContent = \`\${originalIPs.length} 个\`;
        
        // 显示加载的IP列表(默认显示前16个)
        displayLoadedIPs();
        
        // 开始测试
        testBtn.textContent = '测试中...';
        progressText.textContent = \`开始测试端口 \${selectedPort}...\`;
        currentDisplayType = 'testing'; // 切换到测试状态
        
        // 在测试开始时隐藏显示更多按钮
        showMoreSection.style.display = 'none';
        
        // 使用16个并发线程测试
        const results = await testIPsWithConcurrency(originalIPs, selectedPort, 16);
        
        // 按延迟排序
        testResults = results.sort((a, b) => a.latency - b.latency);
        
        // 显示结果
        currentDisplayType = 'results'; // 切换到结果显示状态
        showingAll = false; // 重置显示状态
        displayResults();
        
        testBtn.disabled = false;
        testBtn.textContent = '重新测试';
        portSelect.disabled = false;
        ipSourceSelect.disabled = false;
        progressText.textContent = \`完成 - 有效IP: \${testResults.length}/\${originalIPs.length} (端口: \${selectedPort}, IP库: \${ipSourceName})\`;
    }
    
    // 新增:加载IP列表的函数
    async function loadIPs(ipSource, port) {
        try {
            const response = await fetch(\`?loadIPs=\${ipSource}&port=\${port}\`, {
                method: 'GET'
            });
            
            if (!response.ok) {
                throw new Error('Failed to load IPs');
            }
            
            const data = await response.json();
            return data.ips || [];
        } catch (error) {
            console.error('加载IP列表失败:', error);
            return [];
        }
    }
    
    function displayResults() {
        const ipList = document.getElementById('ip-list');
        const resultCount = document.getElementById('result-count');
        const showMoreSection = document.getElementById('show-more-section');
        const showMoreBtn = document.getElementById('show-more-btn');
        const ipDisplayInfo = document.getElementById('ip-display-info');
        
        if (testResults.length === 0) {
            ipList.innerHTML = '<div class="ip-item">未找到有效的IP</div>';
            resultCount.textContent = '';
            ipDisplayInfo.textContent = '';
            showMoreSection.style.display = 'none';
            displayedResults = [];
            updateButtonStates();
            return;
        }
        
        // 确定显示数量
        const maxDisplayCount = showingAll ? testResults.length : Math.min(testResults.length, 16);
        displayedResults = testResults.slice(0, maxDisplayCount);
        
        // 更新结果计数显示
        if (testResults.length <= 16) {
            resultCount.textContent = \`(共测试出 \${testResults.length} 个有效IP)\`;
            ipDisplayInfo.textContent = \`显示全部 \${testResults.length} 个测试结果\`;
            showMoreSection.style.display = 'none';
        } else {
            resultCount.textContent = \`(共测试出 \${testResults.length} 个有效IP)\`;
            ipDisplayInfo.textContent = \`显示前 \${maxDisplayCount} 个测试结果,共 \${testResults.length} 个有效IP\`;
            showMoreSection.style.display = 'block';
            showMoreBtn.textContent = showingAll ? '显示更少' : '显示更多';
            showMoreBtn.disabled = false; // 确保在结果显示时启用按钮
        }
        
        const resultsHTML = displayedResults.map(result => {
            let className = 'good-latency';
            if (result.latency > 200) className = 'bad-latency';
            else if (result.latency > 100) className = 'medium-latency';
            
            return \`<div class="ip-item \${className}">\${result.display}</div>\`;
        }).join('');
        
        ipList.innerHTML = resultsHTML;
        updateButtonStates();
    }
</script>

</body>
</html>
`;

// 处理加载IP的请求
if (url.searchParams.get('loadIPs')) {
    const ipSource = url.searchParams.get('loadIPs');
    const port = url.searchParams.get('port') || '443';
    const ips = await GetCFIPs(ipSource, port);

    return new Response(JSON.stringify({ ips }), {
        headers: {
            'Content-Type': 'application/json',
        },
    });
}

return new Response(html, {
    headers: {
        'Content-Type': 'text/html; charset=UTF-8',
    },
});

}

/**

  • 获取 Cloudflare 账户今日使用量统计
  • @param {string} accountId - 账户ID(可选,如果没有会自动获取)
  • @param {string} email - Cloudflare 账户邮箱
  • @param {string} apikey - Cloudflare API 密钥
  • @param {number} all - 总限额,默认10万次
  • @returns {Array} [总限额, Pages请求数, Workers请求数, 总请求数]
    */

async function getUsage(accountId, email, apikey, all = 100000) {

/**
 * 获取 Cloudflare 账户ID
 * @param {string} email - 账户邮箱
 * @param {string} apikey - API密钥
 * @param {number} accountIndex - 取第几个账户,默认第0个
 * @returns {string} 账户ID
 */
async function getAccountId(email, apikey) {
    console.log('正在获取账户信息...');

    const response = await fetch("https://api.cloudflare.com/client/v4/accounts", {
        method: "GET",
        headers: {
            "Content-Type": "application/json",
            "X-AUTH-EMAIL": email,
            "X-AUTH-KEY": apikey,
        }
    });

    if (!response.ok) {
        const errorText = await response.text();
        console.error(`获取账户信息失败: ${response.status} ${response.statusText}`, errorText);
        throw new Error(`Cloudflare API 请求失败: ${response.status} ${response.statusText} - ${errorText}`);
    }

    const res = await response.json();
    //console.log(res);

    let accountIndex = 0; // 默认取第一个账户
    let foundMatch = false; // 标记是否找到匹配的账户

    // 如果有多个账户,智能匹配包含邮箱前缀的账户
    if (res?.result && res.result.length > 1) {
        console.log(`发现 ${res.result.length} 个账户,正在智能匹配...`);

        // 提取邮箱前缀并转为小写
        const emailPrefix = email.toLowerCase();
        console.log(`邮箱: ${emailPrefix}`);

        // 遍历所有账户,寻找名称开头包含邮箱前缀的账户
        for (let i = 0; i < res.result.length; i++) {
            const accountName = res.result[i]?.name?.toLowerCase() || '';
            console.log(`检查账户 ${i}: ${res.result[i]?.name}`);

            // 检查账户名称开头是否包含邮箱前缀
            if (accountName.startsWith(emailPrefix)) {
                accountIndex = i;
                foundMatch = true;
                console.log(`✅ 找到匹配账户,使用第 ${i} 个账户`);
                break;
            }
        }

        // 如果遍历完还没找到匹配的,使用默认值0
        if (!foundMatch) {
            console.log('❌ 未找到匹配的账户,使用默认第 0 个账户');
        }
    } else if (res?.result && res.result.length === 1) {
        console.log('只有一个账户,使用第 0 个账户');
        foundMatch = true;
    }

    const name = res?.result?.[accountIndex]?.name;
    const id = res?.result?.[accountIndex]?.id;

    console.log(`最终选择账户 ${accountIndex} - 名称: ${name}, ID: ${id}`);

    if (!id) {
        throw new Error("找不到有效的账户ID,请检查API权限");
    }

    return id;
}

try {
    // 如果没有提供账户ID,就自动获取
    if (!accountId) {
        console.log('未提供账户ID,正在自动获取...');
        accountId = await getAccountId(email, apikey);
    }

    // 设置查询时间范围:今天0点到现在
    const now = new Date();
    const endDate = now.toISOString(); // 结束时间:现在

    // 设置开始时间为今天凌晨0点
    now.setUTCHours(0, 0, 0, 0);
    const startDate = now.toISOString(); // 开始时间:今天0点

    console.log(`查询时间范围: ${startDate} 到 ${endDate}`);

    // 向 Cloudflare GraphQL API 发送请求,获取今日使用量
    const response = await fetch("https://api.cloudflare.com/client/v4/graphql", {
        method: "POST",
        headers: {
            "Content-Type": "application/json",
            "X-AUTH-EMAIL": email,
            "X-AUTH-KEY": apikey,
        },
        body: JSON.stringify({
            // GraphQL 查询语句:获取 Pages 和 Workers 的请求数统计
            query: `query getBillingMetrics($accountId: String!, $filter: AccountWorkersInvocationsAdaptiveFilter_InputObject) {
                viewer {
                    accounts(filter: {accountTag: $accountId}) {
                        pagesFunctionsInvocationsAdaptiveGroups(limit: 1000, filter: $filter) {
                            sum {
                                requests
                            }
                        }
                        workersInvocationsAdaptive(limit: 10000, filter: $filter) {
                            sum {
                                requests
                            }
                        }
                    }
                }
            }`,
            variables: {
                accountId: accountId,
                filter: {
                    datetime_geq: startDate, // 大于等于开始时间
                    datetime_leq: endDate    // 小于等于结束时间
                },
            },
        }),
    });

    // 检查API请求是否成功
    if (!response.ok) {
        const errorText = await response.text();
        console.error(`GraphQL查询失败: ${response.status} ${response.statusText}`, errorText);
        console.log('返回默认值:全部为0');
        return [all, 0, 0, 0];
    }

    const res = await response.json();

    // 检查GraphQL响应是否有错误
    if (res.errors && res.errors.length > 0) {
        console.error('GraphQL查询错误:', res.errors[0].message);
        console.log('返回默认值:全部为0');
        return [all, 0, 0, 0];
    }

    // 从响应中提取账户数据
    const accounts = res?.data?.viewer?.accounts?.[0];

    if (!accounts) {
        console.warn('未找到账户数据');
        return [all, 0, 0, 0];
    }

    // 计算 Pages 请求数(Cloudflare Pages 的请求统计)
    const pagesArray = accounts?.pagesFunctionsInvocationsAdaptiveGroups || [];
    const pages = pagesArray.reduce((total, item) => {
        return total + (item?.sum?.requests || 0);
    }, 0);

    // 计算 Workers 请求数(Cloudflare Workers 的请求统计)
    const workersArray = accounts?.workersInvocationsAdaptive || [];
    const workers = workersArray.reduce((total, item) => {
        return total + (item?.sum?.requests || 0);
    }, 0);

    // 计算总请求数
    const total = pages + workers;

    console.log(`统计结果 - Pages: ${pages}, Workers: ${workers}, 总计: ${total}`);

    // 返回格式:[总限额, Pages请求数, Workers请求数, 总请求数]
    return [all, pages || 0, workers || 0, total || 0];

} catch (error) {
    console.error('获取使用量时发生错误:', error.message);
    // 发生错误时返回默认值
    return [all, 0, 0, 0];
}

}

最后修改:2025 年 07 月 15 日
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