// 泛域名反代
// 在环境变量中添加 @域名前缀，例如@github=https://github.com/,则访问https://github.xxxx.xxx/时，实际访问https://github.com/

export default {
    async fetch(request, env) {
        const url = new URL(request.url);
        new URL(request.url)
        let name = url.hostname.split('.')[0];
        let target = env['@' + name];
        if (!target) {
            return new Response('Not Found', {
                status: 404
            });
        }
        return fetch(new Request(target + url.pathname + url.search, {
            body: request.body,
            headers: request.headers,
            method: request.method,
            redirect: request.redirect
        }));
    }
};