Cloudflare使用Workers设置反代

登录与注册

部署Workers

登录进去后点击【Workers和 Pages】，然后点击【创建】

点击【创建Workers】

然后先设置一下域名，然后点击【部署】

然后就可以配置反代代码了，有两种反代代码，自行选择。

反代代码1

// 代理网站
const upstream = 'xxx-my.sharepoint.com'

// 代理网站的目录
const upstream_path = '/'

// 手机用户代理网站
const upstream_mobile = 'xxx-my.sharepoint.com'

// 屏蔽国家和地区
const blocked_region = ['KP', 'SY', 'PK', 'CU']

// 屏蔽 IP 地址
const blocked_ip_address = ['0.0.0.0', '127.0.0.1']

// 源站是否开启 HTTPS
const https = true

// 是否允许浏览器缓存
const disable_cache = false

// 文本替换
const replace_dict = {
    '$upstream': '$custom_domain',
    '//sharepoint.com': ''
}

// 以下无需修改
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_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', upstream_domain);
        new_request_headers.set('Referer', url.protocol + '//' + url_hostname);

        let original_response = await fetch(url.href, {
            method: method,
            headers: new_request_headers
        })

        connection_upgrade = new_request_headers.get("Upgrade");
        if (connection_upgrade && connection_upgrade.toLowerCase() == "websocket") {
            return original_response;
        }

        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;

        if (disable_cache) {
            new_response_headers.set('Cache-Control', 'no-store');
        }

        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');

        if (new_response_headers.get("x-pjax-url")) {
            new_response_headers.set("x-pjax-url", response_headers.get("x-pjax-url").replace("//" + upstream_domain, "//" + url_hostname));
        }

        const content_type = new_response_headers.get('content-type');
        if (content_type != null && 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;
}

反代代码2

addEventListener('fetch', event => {
	event.respondWith(handleRequest(event.request))
  })
  const specialCases = {
	"*": {
	  "Origin": "DELETE",
	  "Referer": "DELETE"
	}
  }
  function handleSpecialCases(request) {
	const url = new URL(request.url);
	const rules = specialCases[url.hostname] || specialCases["*"];
	for (const [key, value] of Object.entries(rules)) {
	  switch (value) {
		case "KEEP":
		  break;
		case "DELETE":
		  request.headers.delete(key);
		  break;
		default:
		  request.headers.set(key, value);
		  break;
	  }
	}
  }
  async function handleRequest(request) {
	const url = new URL(request.url);
	if (url.pathname === "/") {
	  return new Response(`<!DOCTYPE html>
  <html lang="zh-CN">
  
  <head>
	<meta charset="UTF-8">
	<title>转发服务使用指南</title>
	<style>
	  body {
		font-family: Arial, sans-serif;
		margin: 0;
		padding: 0;
		background: #f4f4f4;
	  }
  
	  .container {
		width: 80%;
		margin: auto;
		overflow: hidden;
	  }
  
	  header {
		background: #333;
		color: #fff;
		padding: 20px;
		text-align: center;
	  }
  
	  section {
		padding: 20px;
		margin-bottom: 20px;
	  }
  
	  .example {
		background: #fff;
		padding: 20px;
		border-radius: 4px;
	  }
  
	  h2 {
		color: #333;
	  }
  
	  code {
		background: #ddd;
		padding: 2px 6px;
		border-radius: 4px;
		display: inline-block;
		margin: 0 5px;
	  }
	</style>
  </head>
  
  <body>
	<header>
	  <h1>转发服务使用指南</h1>
	</header>
	<div class="container">
	  <section>
		<h2>简介</h2>
		<p>本服务是一个轻量级的https请求转发代理，可以帮助您绕过某些网络限制，或者在开发过程中模拟https请求。该转发接口基于Cloudflare构建，以提供快速且安全的服务体验。</p>
	  </section>
	  <section>
		<h2>服务域名</h2>
		<ul>
		  <li><strong>通用转发服务：</strong><code>https://f.ksmlc.us.kg/</code></li>
		</ul>
	  </section>
	  <section>
	  	<h2>如何使用转发服务</h2>
		<section class="example">
		  <h3>通用转发示例</h3>
		  <p><strong>转发服务域名：</strong><code>https://f.ksmlc.us.kg/</code></p>
		  <p><strong>示例1：</strong>要访问<code>https://example.com/</code>，请使用以下URL：</p>
		  <p><code>https://f.ksmlc.us.kg/https://example.com/</code></p>
		  <p><strong>示例2：</strong>要下载<code>https://cloud.ksmlc.cn/f/bmlsD/Clash.Verge_2.0.1_x64-setup.exe</code>，请使用以下URL：</p>
		  <p><code>https://f.ksmlc.us.kg/https://cloud.ksmlc.cn/f/bmlsD/Clash.Verge_2.0.1_x64-setup.exe</code></p>
	  	  <p><strong>总结：</strong>转发服务域名+访问的地址</p>
		  </section>
	  </section>
	</div>
  </body>
  
  </html>`,{
	headers: {
	  'content-type': 'text/html;charset=UTF-8',
	},
	status: 200 // 确保状态码是200
  });
	};
	const actualUrlStr = url.pathname.replace("/", "") + url.search + url.hash;
	const actualUrl = new URL(actualUrlStr);
	const modifiedRequest = new Request(actualUrl, {
	  headers: request.headers,
	  method: request.method,
	  body: request.body,
	  redirect: 'follow'
	});
	handleSpecialCases(modifiedRequest);
	const response = await fetch(modifiedRequest);
	const modifiedResponse = new Response(response.body, response);
	modifiedResponse.headers.set('Access-Control-Allow-Origin', '*');
	return modifiedResponse;
  }

我这里以反代OneDrive为例，然后点击右边的【部署】即可完成反代。