pathnameOnly flag added. Ignores hostname and applies routing table to the paths being requested.

Author: mikkel

lib/node-http-proxy/proxy-table.js

@@ -34,6 +34,7 @@ var util = require('util'),
 // #### @router {Object} Object containing the host based routes
 // #### @silent {Boolean} Value indicating whether we should suppress logs
 // #### @hostnameOnly {Boolean} Value indicating if we should route based on __hostname string only__
+// #### @pathnameOnly {Boolean} Value indicating if we should route based on only the pathname.  __This causes hostnames to be ignored.__.  Using this along with hostnameOnly wont work at all.
 // Constructor function for the ProxyTable responsible for getting
 // locations of proxy targets based on ServerRequest headers; specifically
 // the HTTP host header.
@@ -43,6 +44,7 @@ var ProxyTable = exports.ProxyTable = function (options) {
 
   this.silent       = options.silent || options.silent !== true;
   this.target       = options.target || {};
+  this.pathnameOnly = options.pathnameOnly === true;
   this.hostnameOnly = options.hostnameOnly === true;
 
   if (typeof options.router === 'object') {
@@ -164,8 +166,9 @@ ProxyTable.prototype.getProxyLocation = function (req) {
     return null;
   }
 
-  var target = req.headers.host.split(':')[0];
+  var targetHost = req.headers.host.split(':')[0];
   if (this.hostnameOnly === true) {
+    var target = targetHost;
     if (this.router.hasOwnProperty(target)) {
       var location = this.router[target].split(':'),
           host = location[0],
@@ -177,8 +180,24 @@ ProxyTable.prototype.getProxyLocation = function (req) {
       };
     }
   }
+  else if (this.pathnameOnly === true) {
+    var target = req.url;
+    for (var i in this.routes) {
+        var route = this.routes[i];
+        if (target.match(route.source.regexp)) {
+            req.url = url.format(target.replace(route.source.regexp, ''));
+            return {
+              protocol: route.target.url.protocol.replace(':', ''),
+              host: route.target.url.hostname,
+              port: route.target.url.port
+                || (this.target.https ? 443 : 80)
+            };
+        }
+    }
+
+  }
   else {
-    target += req.url;
+    var target = targetHost + req.url;
     for (var i in this.routes) {
       var route = this.routes[i];
       if (target.match(route.source.regexp)) {

test/http/routing-table-test.js

@@ -43,6 +43,14 @@ vows.describe(helpers.describe('routing-table')).addBatch({
         "bar.com": "127.0.0.1:{PORT}"
       }
     }),
+    "using pathnameOnly": macros.http.assertProxiedToRoutes({
+      pathnameOnly: true,
+      routes: {
+        "/foo": "127.0.0.1:{PORT}",
+        "/bar": "127.0.0.1:{PORT}",
+        "/pizza": "127.0.0.1:{PORT}"
+      }
+    }),
     "using a routing file": macros.http.assertProxiedToRoutes({
       filename: routeFile,
       routes: {

test/macros/http.js

@@ -262,6 +262,7 @@ exports.assertProxiedToRoutes = function (options, nested) {
     //
     proxy = {
       hostnameOnly: options.hostnameOnly,
+      pathnameOnly: options.pathnameOnly,
       router: options.routes
     };
   }