From 0d2f38af370461e1e0d789e6d2929fdc3eac5256 Mon Sep 17 00:00:00 2001
From: qkqpttgf <45693631+qkqpttgf@users.noreply.github.com>
Date: Thu, 28 Oct 2021 10:56:24 +0800
Subject: [PATCH] Create CFWorkers_rand.js

---
 CFWorkers_rand.js | 113 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 113 insertions(+)
 create mode 100644 CFWorkers_rand.js

diff --git a/CFWorkers_rand.js b/CFWorkers_rand.js
new file mode 100644
index 0000000..04704d9
--- /dev/null
+++ b/CFWorkers_rand.js
@@ -0,0 +1,113 @@
+
+// Hosts Array
+// 服务器数组
+const H = [
+    'https://herooneindex.herokuapp.com/',
+    'https://onemanager.glitch.me/',
+    'https://onemanager-php.vercel.app/'
+]
+
+// View Type
+// 1 , only first host,
+//     只第一条Host记录有用
+// 2 , view top 2 host as odd/even days,
+//     只有前两条记录有效，分别单双日运行
+// 3 , view random host
+//     所有记录随机访问
+const T = 1
+
+// CF proxy all, true/false
+// 一切给CF代理，true或false
+const CFproxy = true
+
+// Used in cloudflare workers
+// // // // // //
+
+addEventListener('fetch', event => {
+    let url=new URL(event.request.url);
+    if (url.protocol == 'http:') {
+        // force HTTPS
+        url.protocol = 'https:'
+        event.respondWith( Response.redirect(url.href) )
+    } else {
+        let host = null;
+        if (T===1) {
+            host = H[0];
+        }
+        if (T===2) {
+            host = H[new Date().getDate()%2];
+        }
+        if (T===3) {
+            let n = H.length;
+            host = H[Math.round(Math.random()*n*10)%n];
+        }
+        //console.log(host)
+        if (host.substr(0, 7)!='http://'&&host.substr(0, 8)!='https://') host = 'http://' + host;
+
+        let response = fetchAndApply(host, event.request);
+
+        event.respondWith( response );
+    }
+})
+
+async function fetchAndApply(host, request) {
+    let f_url = new URL(request.url);
+    let a_url = new URL(host);
+    let replace_path = a_url.pathname;
+    if (replace_path.substr(replace_path.length-1)!='/') replace_path += '/';
+    let replaced_path = '/';
+    let query = f_url.search;
+    let path = f_url.pathname;
+    if (host.substr(host.length-1)=='/') path = path.substr(1);
+    f_url.href = host + path + query;
+
+    let response = null;
+    if (!CFproxy) {
+        response = await fetch(f_url, request);
+    } else {
+        let method = request.method;
+        let body = request.body;
+        let request_headers = request.headers;
+        let new_request_headers = new Headers(request_headers);
+        new_request_headers.set('Host', f_url.host);
+        new_request_headers.set('Referer', request.url);
+        response = await fetch(f_url.href, {
+            /*cf: {
+                cacheEverything: true,
+                cacheTtl: 1000,
+                mirage: true,
+                polish: "on",
+                minify: {
+                    javascript: true,
+                    css: true,
+                    html: true,
+                }
+            },*/
+            method: method,
+            body: body,
+            headers: new_request_headers
+        });
+    }
+
+    let out_headers = new Headers(response.headers);
+    if (out_headers.get('Content-Disposition')=='attachment') out_headers.delete('Content-Disposition');
+    let out_body = null;
+    let contentType = out_headers.get('Content-Type');
+    if (contentType.includes("application/text")) {
+        out_body = await response.text();
+        while (replace_path!='/'&&out_body.includes(replace_path)) out_body = out_body.replace(replace_path, replaced_path);
+    } else if (contentType.includes("text/html")) {
+        //f_url.href + 
+        out_body = await response.text();
+        while (replace_path!='/'&&out_body.includes(replace_path)) out_body = out_body.replace(replace_path, replaced_path);
+    } else {
+        out_body = await response.body;
+    }
+
+    let out_response = new Response(out_body, {
+        status: response.status,
+        headers: out_headers
+    })
+
+    return out_response;
+}