之前看到了一个帖子：
发现这代码功能不全，没有我的全（喜
那么今天分享一下我的workers代码：
// 反代目标网站.
const upstream = 'github.com';
// 反代目标网站的移动版.
const upstream_mobile = 'github.com';
// 访问区域黑名单（按需设置）.
const blocked_region = [''];
// 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', // 将"$upstream"替换为"$custom_domain"
'//github.com': '' // 移除路径中的"//github.com"
};
addEventListener('fetch', event => {
event.respondWith(fetchAndApply(event.request));
});
async function fetchAndApply(request) {
const region = request.headers.get('cf-ipcountry').toUpperCase(); // 获取访问者所在的地区
const ip_address = request.headers.get('cf-connecting-ip'); // 获取访问者的IP地址
const user_agent = request.headers.get('user-agent'); // 获取访问者的User-Agent头部信息
let response = null;
let url = new URL(request.url);
let url_host = url.host;
if (url.protocol == 'http:') { // 如果请求协议是HTTP，则重定向到HTTPS
url.protocol = 'https:';
response = Response.redirect(url.href);
return response;
}
if (await device_status(user_agent)) { // 判断是否为移动设备
var upstream_domain = upstream;
} else {
var upstream_domain = upstream_mobile;
}
url.host = upstream_domain;
if (blocked_region.includes(region)) { // 检查访问区域是否在黑名单中
response = new Response('Access denied: WorkersProxy is not available in your region yet.', {
status: 403
});
} else if (blocked_ip_address.includes(ip_address)){ // 检查IP地址是否在黑名单中
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); // 设置请求头的Host字段为反代目标网站的域名
new_request_headers.set('Referer', url.href); // 设置请求头的Referer字段为当前请求的URL
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;
// 修改响应头的设置
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 && content_type.includes('text/html') && content_type.includes('UTF-8')) {
original_text = await replace_response_text(original_response_clone, upstream_domain, url_host); // 替换响应中的文本内容
} 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();
for (let i in replace_dict) {
let 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); // 使用正则表达式替换文本内容
}
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;
}
功能比前面那个帖子强一点，但是要注意以下几点：
- 代码不是我写的，出了问题甭来找我
- 原作者无法考证，我记得原作者已被删库
- 有些网站会不正常，这是因为网站加了反爬虫之类的措施
代码是可以设置的，也可以代理其他网站（谷歌就算了，cloudflare workers被白嫖了之后那些用户不停拿来访问谷歌，于是谷歌干脆封了cf的ip）
具体怎么设置请看注释
如何注册cf、添加workers应该不用教了吧
