_worker.js

let token = "";
export default {
	async fetch(request ,env) {
		const url = new URL(request.url);
		if(url.pathname !== '/'){
			let githubRawUrl = 'https://raw.githubusercontent.com';
			if (new RegExp(githubRawUrl, 'i').test(url.pathname)){
				githubRawUrl += url.pathname.split(githubRawUrl)[1];
			} else {
				if (env.GH_NAME) {
					githubRawUrl += '/' + env.GH_NAME;
					if (env.GH_REPO) {
						githubRawUrl += '/' + env.GH_REPO;
						if (env.GH_BRANCH) githubRawUrl += '/' + env.GH_BRANCH;
					}
				}
				githubRawUrl += url.pathname;
			}
			//console.log(githubRawUrl);
			if (env.GH_TOKEN && env.TOKEN){
				if (env.TOKEN == url.searchParams.get('token')) token = env.GH_TOKEN || token;
				else token = url.searchParams.get('token') || token;
			} else token = url.searchParams.get('token') || env.GH_TOKEN || env.TOKEN || token;
			
			const githubToken = token;
			//console.log(githubToken);
			if (!githubToken || githubToken == '') return new Response('TOKEN不能为空', { status: 400 });
			
			// 构建请求头
			const headers = new Headers();
			headers.append('Authorization', `token ${githubToken}`);

			// 发起请求
			const response = await fetch(githubRawUrl, { headers });

			// 检查请求是否成功 (状态码 200 到 299)
			if (response.ok) {
				return new Response(response.body, {
					status: response.status,
					headers: response.headers
				});
			} else {
				const errorText = env.ERROR || '无法获取文件，检查路径或TOKEN是否正确。';
				// 如果请求不成功，返回适当的错误响应
				return new Response(errorText, { status: response.status });
			}

		} else {
			const envKey = env.URL302 ? 'URL302' : (env.URL ? 'URL' : null);
			if (envKey) {
				const URLs = await ADD(env[envKey]);
				const URL = URLs[Math.floor(Math.random() * URLs.length)];
				return envKey === 'URL302' ? Response.redirect(URL, 302) : fetch(new Request(URL, request));
			}
			//首页改成一个nginx伪装页
			return new Response(await nginx(), {
				headers: {
					'Content-Type': 'text/html; charset=UTF-8',
				},
			});
		}
	}
};

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="http://nginx.org/">nginx.org</a>.<br/>
	Commercial support is available at
	<a href="http://nginx.com/">nginx.com</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
	//console.log(addtext);
	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(',');
	//console.log(add);
	return add ;
}