setup reverse cf proxy

Author: shiwenzhe

config.json

@@ -1,5 +1,8 @@
 {
-  "pfx": "https://test-routes-lyart.now.sh/proxy-http/node-webproxy.herokuapp.com",
+  "pfx1": "https://test-routes-lyart.vercel.app/proxy-https/node-webproxy.herokuapp.com",
   "local_port": 6668,
-  "remote_port": 80
+  "remote_port": 80,
+  "cfOrigin": "",
+  "cfip": "",
+  "cfPort": 8866
 }

local-cf.js

@@ -0,0 +1,32 @@
+var httpProxy = require('http-proxy');
+const http = require('http');
+const conf = require('./config.json')
+
+const staticLookup = (ip, v) => (hostname, opts, cb) => cb(null, ip, v || 4);
+
+function encryptUrl(str) {
+  const a = str.split('').reverse().join('');
+  return encodeURIComponent(a);
+}
+
+const httpAgent = new http.Agent({
+  keepAlive: true,
+  keepAliveMsecs: 50 * 1000,
+  lookup: staticLookup(conf.cfip, 4),
+});
+
+const proxy = httpProxy.createProxyServer(); // See (†)
+
+const server = http.createServer(function (req, res) {
+  const url1 = req.url.replace(/^\//, '')
+  req.url = '/' + encryptUrl(url1)
+
+  proxy.web(req, res, {
+    target: conf.cfOrigin,
+    agent: httpAgent,
+    changeOrigin: true,
+    toProxy: true,
+  });
+});
+
+server.listen(8866);

package-lock.json

@@ -11,6 +11,7 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
+    "http-proxy": "^1.18.1",
     "know-your-http-well": "^0.5.0",
     "lodash": "^4.17.4",
     "node-fetch": "^2.6.0",