反向代理

反代整个网站

// 替换成你想镜像的站点
const upstream = 'www.google.com'

// 如果那个站点有专门的移动适配站点，否则保持和上面一致

const upstream_mobile = 'www.google.com'

// 你希望禁止哪些国家访问

const blocked_region = ['RU']

// 禁止自访问

const blocked_ip_address = ['0.0.0.0', '127.0.0.1']

// 替换成你想镜像的站点

const replace_dict = {

    '$upstream': '$custom_domain',

    '//www.google.com': ''

}

//以下内容都不用动

addEventListener('fetch', event => {

    event.respondWith(fetchAndApply(event.request));

})

async function fetchAndApply(request) {

    const region = request.headers.get('cf-ipcountry').toUpperCase();

    const ip_address = request.headers.get('cf-connecting-ip');

    const user_agent = request.headers.get('user-agent');

    let response = null;

    let url = new URL(request.url);

    let url_host = url.host;

    if (url.protocol == 'http:') {

        url.protocol = 'https:'

        response = Response.redirect(url.href);

        return response;

    }

    if (await device_status(user_agent)) {

        upstream_domain = upstream

    } else {

        upstream_domain = upstream_mobile

    }

    url.host = upstream_domain;

    if (blocked_region.includes(region)) {

        response = new Response('Access denied: WorkersProxy is not available in your region yet.', {

            status: 403

        });

    } else if(blocked_ip_address.includes(ip_address)){

        response = new Response('Access denied: Your IP address is blocked by WorkersProxy.', {

            status: 403

        });

    } else{

        let method = request.method;

        let request_headers = request.headers;

        let new_request_headers = new Headers(request_headers);

        new_request_headers.set('Host', upstream_domain);

        new_request_headers.set('Referer', url.href);

        let original_response = await fetch(url.href, {

            method: method,

            headers: new_request_headers

        })

        let original_response_clone = original_response.clone();

        let original_text = null;

        let response_headers = original_response.headers;

        let new_response_headers = new Headers(response_headers);

        let status = original_response.status;

        new_response_headers.set('access-control-allow-origin', '*');

        new_response_headers.set('access-control-allow-credentials', true);

        new_response_headers.delete('content-security-policy');

        new_response_headers.delete('content-security-policy-report-only');

        new_response_headers.delete('clear-site-data');

        const content_type = new_response_headers.get('content-type');

        if (content_type.includes('text/html') && content_type.includes('UTF-8')) {

            original_text = await replace_response_text(original_response_clone, upstream_domain, url_host);

        } else {

            original_text = original_response_clone.body

        }

        response = new Response(original_text, {

            status,

            headers: new_response_headers

        })

    }

    return response;

}

async function replace_response_text(response, upstream_domain, host_name) {

    let text = await response.text()

    var i, j;

    for (i in replace_dict) {

        j = replace_dict[i]

        if (i == '$upstream') {

            i = upstream_domain

        } else if (i == '$custom_domain') {

            i = host_name

        }

        if (j == '$upstream') {

            j = upstream_domain

        } else if (j == '$custom_domain') {

            j = host_name

        }

        let re = new RegExp(i, 'g')

        text = text.replace(re, j);

    }

    return text;

}

async function device_status (user_agent_info) {

    var agents = ["Android", "iPhone", "SymbianOS", "Windows Phone", "iPad", "iPod"];

    var flag = true;

    for (var v = 0; v < agents.length; v++) { if (user_agent_info.indexOf(agents[v]) > 0) {

            flag = false;

            break;

        }

    }

    return flag;

}

反代网站带密码

// 替换成你想镜像的站点

const upstream = 'google.com'

// 如果那个站点有专门的移动适配站点，否则保持和上面一致

const upstream_mobile = 'm.google.com'

// 密码访问

const openAuth = false

const username = 'username'

const password = 'password'

// 你希望禁止哪些国家访问

const blocked_region = ['RU']

// 禁止自访问

const blocked_ip_address = ['0.0.0.0', '127.0.0.1']

// 替换成你想镜像的站点

const replace_dict = {

    '$upstream': '$custom_domain',

    '//google.com': ''

}

function unauthorized() {

  return new Response('Unauthorized', {

    headers: {

      'WWW-Authenticate': 'Basic realm="goindex"',

      'Access-Control-Allow-Origin': '*'

    },

    status: 401

  });

}

function parseBasicAuth(auth) {

    try {

      return atob(auth.split(' ').pop()).split(':');

    } catch (e) {

      return [];

    }

}

function doBasicAuth(request) {

  const auth = request.headers.get('Authorization');

  if (!auth || !/^Basic [A-Za-z0-9._~+/-]+=*$/i.test(auth)) {

    return false;

  }

  const [user, pass] = parseBasicAuth(auth);

  return user === username && pass === password;

}

async function fetchAndApply(request) {

  if (request.method === 'OPTIONS') // allow preflight request

    return new Response('', {

      status: 200,

      headers: {

        'Access-Control-Allow-Origin': '*',

        'Access-Control-Allow-Headers': '*',

        'Access-Control-Allow-Methods': 'GET, POST, PUT, HEAD, OPTIONS'

      }

    });

  if (openAuth && !doBasicAuth(request)) {

    return unauthorized();

  }

    const region = request.headers.get('cf-ipcountry').toUpperCase();

    const ip_address = request.headers.get('cf-connecting-ip');

    const user_agent = request.headers.get('user-agent');

    let response = null;

    let url = new URL(request.url);

    let url_host = url.host;

    if (url.protocol == 'http:') {

        url.protocol = 'https:'

        response = Response.redirect(url.href);

        return response;

    }

    if (await device_status(user_agent)) {

        upstream_domain = upstream

    } else {

        upstream_domain = upstream_mobile

    }

    url.host = upstream_domain;

    if (blocked_region.includes(region)) {

        response = new Response('Access denied: WorkersProxy is not available in your region yet.', {

            status: 403

        });

    } else if(blocked_ip_address.includes(ip_address)){

        response = new Response('Access denied: Your IP address is blocked by WorkersProxy.', {

            status: 403

        });

    } else{

        let method = request.method;

        let request_headers = request.headers;

        let new_request_headers = new Headers(request_headers);

        new_request_headers.set('Host', upstream_domain);

        new_request_headers.set('Referer', url.href);

        let original_response = await fetch(url.href, {

            method: method,

            headers: new_request_headers

        })

        let original_response_clone = original_response.clone();

        let original_text = null;

        let response_headers = original_response.headers;

        let new_response_headers = new Headers(response_headers);

        let status = original_response.status;

        new_response_headers.set('access-control-allow-origin', '*');

        new_response_headers.set('access-control-allow-credentials', true);

        new_response_headers.delete('content-security-policy');

        new_response_headers.delete('content-security-policy-report-only');

        new_response_headers.delete('clear-site-data');

        const content_type = new_response_headers.get('content-type');

        if (content_type.includes('text/html') && content_type.includes('UTF-8')) {

            original_text = await replace_response_text(original_response_clone, upstream_domain, url_host);

        } else {

            original_text = original_response_clone.body

        }

        response = new Response(original_text, {

            status,

            headers: new_response_headers

        })

    }

    return response;

}

addEventListener('fetch', event => {

    event.respondWith(fetchAndApply(event.request).catch(err => {

      console.error(err);

      new Response(JSON.stringify(err.stack), {

        status: 500,

        headers: {

          'Content-Type': 'application/json'

        }

      });

    }));

})

async function replace_response_text(response, upstream_domain, host_name) {

    let text = await response.text()

    var i, j;

    for (i in replace_dict) {

        j = replace_dict[i]

        if (i == '$upstream') {

            i = upstream_domain

        } else if (i == '$custom_domain') {

            i = host_name

        }

        if (j == '$upstream') {

            j = upstream_domain

        } else if (j == '$custom_domain') {

            j = host_name

        }

        let re = new RegExp(i, 'g')

        text = text.replace(re, j);

    }

    return text;

}

async function device_status (user_agent_info) {

    var agents = ["Android", "iPhone", "SymbianOS", "Windows Phone", "iPad", "iPod"];

    var flag = true;

    for (var v = 0; v < agents.length; v++) { if (user_agent_info.indexOf(agents[v]) > 0) {

            flag = false;

            break;

        }

    }

    return flag;

}

反代网站指定目录

// 你要镜像的网站.

const upstream = 'objectstorage.ap-seoul-1.oraclecloud.com'

// 镜像网站的目录，比如你想镜像某个网站的二级目录则填写二级目录的目录名，镜像 google 用不到，默认即可.

const upstream_path = '/test/'

// 镜像站是否有手机访问专用网址，没有则填一样的.

const upstream_mobile = 'objectstorage.ap-seoul-1.oraclecloud.com'

// 屏蔽国家和地区.

const blocked_region = ['']

// 屏蔽 IP 地址.

const blocked_ip_address = ['0.0.0.0', '127.0.0.1']

// 镜像站是否开启 HTTPS.

const https = true

// 文本替换.填你要镜像的网站

const replace_dict = {

    '$upstream': '$custom_domain',

    '//objectstorage.ap-seoul-1.oraclecloud.com': ''

}

// 以下保持默认，不要动

addEventListener('fetch', event => {

    event.respondWith(fetchAndApply(event.request));

})

async function fetchAndApply(request) {

    const region = request.headers.get('cf-ipcountry').toUpperCase();

    const ip_address = request.headers.get('cf-connecting-ip');

    const user_agent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.149 Safari/537.36"

    let response = null;

    let url = new URL(request.url);

    let url_hostname = url.hostname;

    if (https == true) {

        url.protocol = 'https:';

    } else {

        url.protocol = 'http:';

    }

    if (await device_status(user_agent)) {

        var upstream_domain = upstream;

    } else {

        var upstream_domain = upstream_mobile;

    }

    url.host = upstream_domain;

    if (url.pathname == '/') {

        url.pathname = upstream_path;

    } else {

        url.pathname = upstream_path + url.pathname;

    }

    if (blocked_region.includes(region)) {

        response = new Response('Access denied: WorkersProxy is not available in your region yet.', {

            status: 403

        });

    } else if (blocked_ip_address.includes(ip_address)) {

        response = new Response('Access denied: Your IP address is blocked by WorkersProxy.', {

            status: 403

        });

    } else {

        let method = request.method;

        let request_headers = request.headers;

        let new_request_headers = new Headers(request_headers);

        new_request_headers.set('Host', url.hostname);

        new_request_headers.set('Referer', url.hostname);

        let original_response = await fetch(url.href, {

            method: method,

            headers: new_request_headers

        })

        let original_response_clone = original_response.clone();

        let original_text = null;

        let response_headers = original_response.headers;

        let new_response_headers = new Headers(response_headers);

        let status = original_response.status;

        new_response_headers.set('access-control-allow-origin', '*');

        new_response_headers.set('access-control-allow-credentials', true);

        new_response_headers.delete('content-security-policy');

        new_response_headers.delete('content-security-policy-report-only');

        new_response_headers.delete('clear-site-data');

        const content_type = new_response_headers.get('content-type');

        if (content_type.includes('text/html') && content_type.includes('UTF-8')) {

            original_text = await replace_response_text(original_response_clone, upstream_domain, url_hostname);

        } else {

            original_text = original_response_clone.body

        }

        response = new Response(original_text, {

            status,

            headers: new_response_headers

        })

    }

    return response;

}

async function replace_response_text(response, upstream_domain, host_name) {

    let text = await response.text()

    var i, j;

    for (i in replace_dict) {

        j = replace_dict[i]

        if (i == '$upstream') {

            i = upstream_domain

        } else if (i == '$custom_domain') {

            i = host_name

        }

        if (j == '$upstream') {

            j = upstream_domain

        } else if (j == '$custom_domain') {

            j = host_name

        }

        let re = new RegExp(i, 'g')

        text = text.replace(re, j);

    }

    return text;

}

async function device_status(user_agent_info) {

    var agents = ["Android", "iPhone", "SymbianOS", "Windows Phone", "iPad", "iPod"];

    var flag = true;

    for (var v = 0; v < agents.length; v++) {

        if (user_agent_info.indexOf(agents[v]) > 0) {

            flag = false;

            break;

        }

    }

    return flag;

}