如何快速建立一个属于自己的Google镜像站点?
正常利用一台位于境外的服务器对“google.com”部署反向代理,那么问题来了,现如今的GFW当然不会让你轻而易举的搭建这类代理,如果你将VPS[尤指阿里、腾讯这种国内厂商以及一只被GFW特殊照顾的搬瓦工]直接裸奔代理的话,毫无疑问你将遭遇无情的TCP封禁。【准确点说,在我作死测试了三台部署于香港的阿里云VPS后,会禁封掉这个端口,几天,几个月后佛系解封】
那么就没有解决办法了嘛?既出此文,答案必然是否定的咯!
全球最富盛名的始终提供免费CDN的服务商CloudFlare就是一个解决办法,
通过域名CNAME指向CF的CDN就可以实现防封,但是大多数小伙伴们并不会为了一个谷歌镜像就去购买一台VPS,那么,那么,那么终极解决方案也就来了:
CloudFlare Workers,这是一个能免费托管平台,并赠送访问域名。那么欲成此事必先了解他是什么
Cloudflare Workers 的名字来源于 Web Workers 以及更特别的 Service Workers,
这个 W3C 标准API 针对的是在浏览器后台运行并拦截 HTTP 请求的脚本。
Cloudflare Workers 是使用同样的标准API编写的,但是在、Cloudflare 的服务器上运行,而不是在浏览器中。
首先我来丢颗糖,基于CF Pro支持观看油管的演示站
OK,一切准备就绪,开工!
0.登录CloudFlare
1.再打开位于网页右部的“Workers”
2.根据系统提示创建好自己的子域名
3.点击“Create a Worker”
4.在代码栏内粘贴以下源码
// Website you intended to retrieve for users. const upstream = 'www.google.com' // Website you intended to retrieve for users using mobile devices. const upstream_mobile = 'www.google.com' // Countries and regions where you wish to suspend your service. const blocked_region = ['KP', 'SY', 'PK', 'CU'] // IP addresses which you wish to block from using your service. const blocked_ip_address = ['0.0.0.0', '127.0.0.1'] // Replace texts. const replace_dict = { '$upstream': '$custom_domain', '//google.com': '' } 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; }

通过配置地址和IP地址过滤器可以禁止特定国家或地区使用反代服务;利用移动重定向器可以根据用户的设备来分发不同的网页。
By 团队成员——血狼
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