// Docker镜像仓库主机地址
let hub_host = '';
// Docker认证服务器地址
const auth_url = '';
// 自定义的工作服务器地址
let workers_url = '';
let 屏蔽爬虫UA = ['netcraft'];
// 根据主机名选择对应的上游地址
function routeByHosts(host) {
// 定义路由表
const routes = {
// 生产环境
"quay": "",
"gcr": "",
"k8s-gcr": "",
"k8s": "registry.",
"ghcr": "",
"cloudsmith": "",
// 测试环境
"test": "",
};
if (host in routes) return [routes[host], false];
else return [hub_host, true];
}
/** @type {RequestInit} */
const PREFLIGHT_INIT = {
// 预检请求配置
headers: new Headers({
'access-control-allow-origin': '*', // 允许所有来源
'access-control-allow-methods': 'GET,POST,PUT,PATCH,TRACE,DELETE,HEAD,OPTIONS', // 允许的HTTP方法
'access-control-max-age': '1728000', // 预检请求的缓存时间
}),
};
/**
* 构造响应
* @param {any} body 响应体
* @param {number} status 响应状态码
* @param {Object<string, string>} headers 响应头
*/
function makeRes(body, status = 200, headers = {}) {
headers['access-control-allow-origin'] = '*'; // 允许所有来源
return new Response(body, { status, headers }); // 返回新构造的响应
}
/**
* 构造新的URL对象
* @param {string} urlStr URL字符串
*/
function newUrl(urlStr) {
try {
return new URL(urlStr); // 尝试构造新的URL对象
} catch (err) {
return null; // 构造失败返回null
}
}
function isUUID(uuid) {
// 定义一个正则表达式来匹配 UUID 格式
const uuidRegex = /^[0-9a-f]{8}-[0-9a-f]{4}-[4][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i;
// 使用正则表达式测试 UUID 字符串
return uuidRegex.test(uuid);
}
async function nginx() {
const text = `
<!DOCTYPE html>
<html>
<head>
<title>Welcome to nginx!</title>
<style>
body {
width: 35em;
margin: 0 auto;
font-family: Tahoma, Verdana, Arial, sans-serif;
}
</style>
</head>
<body>
<h1>Welcome to nginx!</h1>
<p>If you see this page, the nginx web server is successfully installed and
working. Further configuration is required.</p>
<p>For online documentation and support please refer to
<a href="/"></a>.<br/>
Commercial support is available at
<a href="/"></a>.</p>
<p><em>Thank you for using nginx.</em></p>
</body>
</html>
`;
return text;
}
async function ADD(envadd) {
var addtext = envadd.replace(/[ |"'\r\n]+/g, ',').replace(/,+/g, ','); // 将空格、双引号、单引号和换行符替换为逗号
if (addtext.charAt(0) == ',') addtext = addtext.slice(1);
if (addtext.charAt(addtext.length - 1) == ',') addtext = addtext.slice(0, addtext.length - 1);
const add = addtext.split(',');
return add;
}
/**
* 处理HTTP请求
* @param {Request} req 请求对象
* @param {string} pathname 请求路径
*/
function httpHandler(req, pathname) {
const reqHdrRaw = req.headers;
// 处理预检请求
if (req.method === 'OPTIONS' &&
reqHdrRaw.has('access-control-request-headers')
) {
return new Response(null, PREFLIGHT_INIT);
}
let rawLen = '';
const reqHdrNew = new Headers(reqHdrRaw);
let urlStr = pathname;
const urlObj = newUrl(urlStr);
/** @type {RequestInit} */
const reqInit = {
method: req.method,
headers: reqHdrNew,
redirect: 'follow',
body: req.body
};
return proxy(urlObj, reqInit, rawLen);
}
/**
* 代理请求
* @param {URL} urlObj URL对象
* @param {RequestInit} reqInit 请求初始化对象
* @param {string} rawLen 原始长度
*/
async function proxy(urlObj, reqInit, rawLen) {
const res = await fetch(urlObj.href, reqInit);
const resHdrOld = res.headers;
const resHdrNew = new Headers(resHdrOld);
// 验证长度
if (rawLen) {
const newLen = resHdrOld.get('content-length') || '';
const badLen = (rawLen !== newLen);
if (badLen) {
return makeRes(res.body, 400, {
'--error': `bad len: ${newLen}, except: ${rawLen}`,
'access-control-expose-headers': '--error',
});
}
}
const status = res.status;
resHdrNew.set('access-control-expose-headers', '*');
resHdrNew.set('access-control-allow-origin', '*');
resHdrNew.set('Cache-Control', 'max-age=1500');
// 删除不必要的头
resHdrNew.delete('content-security-policy');
resHdrNew.delete('content-security-policy-report-only');
resHdrNew.delete('clear-site-data');
return new Response(res.body, {
status,
headers: resHdrNew
});
}
addEventListener('fetch', event => {
event.respondWith(handleRequest(event.request, event));
});
async function handleRequest(request, event) {
const env = event.env;
// 获取当前时间
const now = new Date();
const currentHour = now.getUTCHours(); // 使用UTC时间
// 检查当前时间是否在1到10点之间
if (currentHour <= 10 || currentHour >= 1) {
return new Response(`<html><body><h1>Current Time: ${()}</h1></body></html>`, {
headers: { 'Content-Type': 'text/html; charset=UTF-8' },
});
}
const getReqHeader = (key) => request.headers.get(key); // 获取请求头
let url = new URL(request.url); // 解析请求URL
const userAgentHeader = request.headers.get('User-Agent');
const userAgent = userAgentHeader ? userAgentHeader.toLowerCase() : "null";
if (env && env.UA) 屏蔽爬虫UA = 屏蔽爬虫UA.concat(await ADD(env.UA));
workers_url = `https://${}`;
const pathname = url.pathname;
const hostname = url.searchParams.get('hubhost') || url.hostname;
const hostTop = hostname.split('.')[0];// 获取主机名的第一部分
const checkHost = routeByHosts(hostTop);
hub_host = checkHost[0]; // 获取上游地址
const fakePage = checkHost[1];
console.log(`域名头部: ${hostTop}\n反代地址: ${hub_host}\n伪装首页: ${fakePage}`);
const isUuid = isUUID(pathname.split('/')[1].split('/')[0]);
if (屏蔽爬虫UA.some(fxxk => userAgent.includes(fxxk)) && 屏蔽爬虫UA.length > 0) {
//首页改成一个nginx伪装页
return new Response(await nginx(), {
headers: {
'Content-Type': 'text/html; charset=UTF-8',
},
});
}
const conditions = [
isUuid,
pathname.includes('/_'),
pathname.includes('/r'),
pathname.includes('/v2/user'),
pathname.includes('/v2/orgs'),
pathname.includes('/v2/_catalog'),
pathname.includes('/v2/categories'),
pathname.includes('/v2/feature-flags'),
pathname.includes('search'),
pathname.includes('source'),
pathname === '/',
pathname === '/',
pathname === '/auth/profile',
];
if (conditions.some(condition => condition) && (fakePage === true || hostTop == 'docker')) {
if (env && env.URL302) {
return Response.redirect(env.URL302, 302);
} else if (env && env.URL) {
if (env.URL.toLowerCase() == 'nginx') {
//首页改成一个nginx伪装页
return new Response(await nginx(), {
headers: {
'Content-Type': 'text/html; charset=UTF-8',
},
});
} else return fetch(new Request(env.URL, request));
}
const newUrl = new URL("" + pathname + url.search);
// 复制原始请求的标头
const headers = new Headers(request.headers);
// 确保 Host 头部被替换为
headers.set('Host', '');
const newRequest = new Request(newUrl, {
method: request.method,
headers: headers,
body: request.method !== 'GET' && request.method !== 'HEAD' ? await request.blob() : null,
redirect: 'follow'
});
return fetch(newRequest);
}
// 修改包含 %2F 和 %3A 的请求
if (!/%2F/.test(url.search) && /%3A/.test(url.toString())) {
let modifiedUrl = url.toString().replace(/%3A(?=.*?&)/, '%3Alibrary%2F');
url = new URL(modifiedUrl);
console.log(`handle_url: ${url}`);
}
// 处理token请求
if (url.pathname.includes('/token')) {
let token_parameter = {
headers: {
'Host': '',
'User-Agent': getReqHeader("User-Agent"),
'Accept': getReqHeader("Accept"),
'Accept-Language': getReqHeader("Accept-Language"),
'Accept-Encoding': getReqHeader("Accept-Encoding"),
'Connection': 'keep-alive',
'Cache-Control': 'max-age=0'
}
};
let token_url = auth_url + url.pathname + url.search;
return fetch(new Request(token_url, request), token_parameter);
}
// 修改 /v2/ 请求路径
if (/^\/v2\/[^/]+\/[^/]+\/[^/]+$/.test(url.pathname) && !/^\/v2\/library/.test(url.pathname)) {
url.pathname = url.pathname.replace(/\/v2\//, '/v2/library/');
console.log(`modified_url: ${}`);
}
// 更改请求的主机名
url.hostname = hub_host;
// 构造请求参数
let parameter = {
headers: {
'Host': hub_host,
'User-Agent': getReqHeader("User-Agent"),
'Accept': getReqHeader("Accept"),
'Accept-Language': getReqHeader("Accept-Language"),
'Accept-Encoding': getReqHeader("Accept-Encoding"),
'Connection': 'keep-alive',
'Cache-Control': 'max-age=0'
},
cacheTtl: 3600 // 缓存时间
};
// 添加Authorization头
if (request.headers.has("Authorization")) {
parameter.headers.Authorization = getReqHeader("Authorization");
}
// 发起请求并处理响应
let original_response = await fetch(new Request(url, request), parameter);
let original_response_clone = original_response.clone();
let original_text = original_response_clone.body;
let response_headers = original_response.headers;
let new_response_headers = new Headers(response_headers);
let status = original_response.status;
// 修改 Www-Authenticate 头
if (new_response_headers.get("Www-Authenticate")) {
let auth = new_response_headers.get("Www-Authenticate");
let re = new RegExp(auth_url, 'g');
new_response_headers.set("Www-Authenticate", response_headers.get("Www-Authenticate").replace(re, workers_url));
}
// 处理重定向
if (new_response_headers.get("Location")) {
return httpHandler(request, new_response_headers.get("Location"));
}
// 返回修改后的响应
let response = new Response(original_text, {
status,
headers: new_response_headers
});
return response;
}