node-proxy-dokku

commit b0d0e77f14bf94c6c3fac41a5273968548779353
parent 9c93d9b4f14020b55dae512c508fa829ecbbd3f4
Author: Robin Bron <robin@finwo.nl>
Date:   Tue,  4 Oct 2016 16:20:15 +0200

Working version

Diffstat:
M
.gitignore
 | 
3
+++
A
Procfile
 | 
1
+
A
index.js
 | 
63
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
A
package.json
 | 
27
+++++++++++++++++++++++++++

4 files changed, 94 insertions(+), 0 deletions(-)
diff --git a/.gitignore b/.gitignore
@@ -35,3 +35,6 @@ jspm_packages
 
 # Optional REPL history
 .node_repl_history
+
+# Editor files
+.idea
diff --git a/Procfile b/Procfile
@@ -0,0 +1 @@
+web: forever index.js
diff --git a/index.js b/index.js
@@ -0,0 +1,63 @@
+var http      = require('http'),
+    httpProxy = require('http-proxy');
+
+var port        = process.env.PORT || 3000,
+    proxies     = {},
+    commonRegex = {
+      targetHost: new RegExp('(.*)(localhost|'+(process.env.DOMAIN)+')', 'i'),
+      dotProtocol: /^(https?)\./i,
+      trimDots: /(^\.|\.$)/g,
+      protocol: /^https?:\/\//i
+    };
+
+function error_500(res) {
+  res.writeHead(500, {
+    'Content-Type': 'text/plain'
+  });
+  res.end('Internal server error');
+}
+
+var server = http.createServer(function(req, res) {
+  // HTTP
+
+  // Let's get the target host
+  var targetHost = commonRegex.targetHost.exec(req.headers.host)[1] || null,
+      proto      = commonRegex.dotProtocol.test(targetHost);
+
+  // Fix the protocol
+  if (proto) {
+    targetHost = targetHost.replace(commonRegex.dotProtocol, function() {
+      return arguments[1]+'://';
+    });
+  } else {
+    targetHost = 'http://' + targetHost;
+  }
+
+  // Strip surrounding dots
+  targetHost = targetHost.replace(commonRegex.trimDots, '');
+
+  // Check if we have a proxy for this yet
+  if (!proxies[targetHost]) {
+    try {
+      proxies[targetHost] = new httpProxy.createProxyServer({
+        target:targetHost,
+        autoRewrite: true,
+        cookieDomainRewrite: req.headers.host
+      });
+    } catch(e) {
+      console.log(e);
+      proxies[targetHost] = null;
+    }
+  }
+
+  // And proxy the request
+  req.headers.host = targetHost.replace(commonRegex.protocol, '');
+  proxies[targetHost].web(req, res);
+});
+
+server.on('upgrade', function(req, socket, head) {
+  // Websockets
+});
+
+server.listen(port);
+console.log("Server now listening on port", port);
diff --git a/package.json b/package.json
@@ -0,0 +1,27 @@
+{
+  "name": "node-proxy-dokku",
+  "version": "1.0.0",
+  "description": "Nodejs HTTP(S) proxy based on node-proxy & environment variables",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/finwo/node-proxy-dokku.git"
+  },
+  "keywords": [
+    "proxy"
+  ],
+  "author": "Robin Bron",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/finwo/node-proxy-dokku/issues"
+  },
+  "homepage": "https://github.com/finwo/node-proxy-dokku#readme",
+  "dependencies": {
+    "forever": "^0.15.2",
+    "http": "0.0.0",
+    "http-proxy": "^1.15.1"
+  }
+}