91 lines
3.1 KiB
JavaScript
91 lines
3.1 KiB
JavaScript
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// odd, 单日
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const SingleDay = 'https://aaa1.herokuapp.com'
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// even, 双日
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const DoubleDay = 'https://bbb2.herokuapp.com'
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//const SingleDay = 'https://153xxxxx0.cn-hongkong.fc.aliyuncs.com/2016-08-15/proxy/onedrive/xxx/'
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//const DoubleDay = 'https://153xxxxx0.cn-hongkong.fc.aliyuncs.com/2016-08-15/proxy/onedrive/xxx/'
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// CF proxy all, 一切给CF代理，true/false
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const CFproxy = true
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// Used in cloudflare workers, odd or even days point to 2 heroku account.
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// 由于heroku不绑卡不能自定义域名，就算绑卡后https也不方便
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// 另外免费套餐每月550小时，有些人不够用
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// 于是在CF Workers使用此代码，分单双日拉取不同heroku帐号下的相同网页
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// 只改上面，下面不用动
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addEventListener('fetch', event => {
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let url=new URL(event.request.url);
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if (url.protocol == 'http:') {
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url.protocol = 'https:'
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event.respondWith( Response.redirect(url.href) )
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} else {
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let response = null;
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let nd = new Date();
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if (nd.getDate()%2) {
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host = SingleDay
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} else {
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host = DoubleDay
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}
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if (host.substr(0, 7)!='http://'&&host.substr(0, 8)!='https://') host = 'http://' + host;
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response = fetchAndApply(host, event.request);
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event.respondWith( response );
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}
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})
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async function fetchAndApply(host, request) {
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let f_url = new URL(request.url);
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let a_url = new URL(host);
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let replace_path = a_url.pathname;
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if (replace_path.substr(replace_path.length-1)!='/') replace_path += '/';
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let replaced_path = '/';
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let query = f_url.search;
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let path = f_url.pathname;
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if (host.substr(host.length-1)=='/') path = path.substr(1);
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f_url.href = host + path + query;
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let response = null;
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if (!CFproxy) {
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response = await fetch(f_url, request);
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} else {
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let method = request.method;
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let body = request.body;
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let request_headers = request.headers;
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let new_request_headers = new Headers(request_headers);
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new_request_headers.set('Host', f_url.host);
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new_request_headers.set('Referer', request.url);
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response = await fetch(f_url.href, {
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method: method,
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body: body,
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headers: new_request_headers
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});
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}
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let out_headers = new Headers(response.headers);
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if (out_headers.get('Content-Disposition')=='attachment') out_headers.delete('Content-Disposition');
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let out_body = null;
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let contentType = out_headers.get('Content-Type');
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if (contentType.includes("application/text")) {
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out_body = await response.text();
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while (out_body.includes(replace_path)) out_body = out_body.replace(replace_path, replaced_path);
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} else if (contentType.includes("text/html")) {
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out_body = await response.text();
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while (replace_path!='/'&&out_body.includes(replace_path)) out_body = out_body.replace(replace_path, replaced_path);
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} else {
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out_body = await response.body;
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}
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let out_response = new Response(out_body, {
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status: response.status,
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headers: out_headers
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})
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return out_response;
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}
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