前言
今天教大家一种新的关于 CloudFlare Worker 的玩法 - 利用 Cloudflare Worker 搭建镜像网站!
CloudFlare Worker 每天免费 10万次 请求也足以应对个人使用或者是小范围分享了
搭建教程
- 点击 创建
Worker
- 将原有的示例代码全部删除
将下方代码全部粘贴到代码框里,如下图所示:
♾️ js 代码:// 反代目标网站. const upstream = 'lb5.net' // 反代目标网站的移动版. const upstream_mobile = 'lb5.net' // 访问区域黑名单(按需设置). const blocked_region = ['TK'] // IP地址黑名单(按需设置). const blocked_ip_address = ['0.0.0.0', '127.0.0.1'] // 路径替换. const replace_dict = { '$upstream': '$custom_domain', '//archiveofourown.org': '' } 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)) { var upstream_domain = upstream; } else { var 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('cache-control' ,'public, max-age=14400') 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; }
- 粘贴好后按需修改下方参数,修改好之后,点击 保存并部署
const upstream = '反代目标网站'
const upstream_mobile = '反代目标网站的移动版'
const blocked_region = ['访问区域黑名单(按需设置)']
const blocked_ip_address = ['IP地址黑名单(按需设置)', '127.0.0.1']
const replace_dict = 路径替换