3 files changed, 64 insertions, 34 deletions
diff --git a/go/README b/go/README
deleted file mode 100644
index 78f6b195..00000000
--- a/go/README
+++ /dev/null
@@ -1,25 +0,0 @@
-go - minimalistic uri shortener
-
-# installation
-    npm install
-
-  optionally
-    npm install hiredis
-
-# run service
-    PORT=1337 node .
-
-# add uri
-    curl -F uri=https://mywaytoolonguri http://localhost:1337
-
-  this will give you a relative shortened uri.
-
-# resolve uri
-
-  curl -L http://localhost:1337/shortened-relative-uri
-
-# clear database
-
-    redis-cli keys 'go:*' | xargs redis-cli del
-
-  if you have changed `redisPrefix`, then use that instead of `go:`.
diff --git a/go/README.markdown b/go/README.markdown
new file mode 100644
index 00000000..11a31975
--- /dev/null
+++ b/go/README.markdown
@@ -0,0 +1,34 @@
+# go - minimalistic uri shortener
+
+## install dependencies
+
+    npm install
+
+  apparently you can also
+
+    npm install hiredis
+
+  for more awesome.
+
+## run service
+
+    HOSTN=go PORT=80 node .
+
+  if you omit `HOSTN`, then relative shortened uris will be generated.
+  if you omit `PORT`, then it's `1337`.
+
+## add uri
+
+    curl -F uri=https://mywaytoolonguri http://go
+
+  this will give you a shortened uri.
+
+## resolve uri
+
+    curl -L http://go/1
+
+## clear database
+
+    redis-cli keys 'go:*' | xargs redis-cli del
+
+  if you have changed `redisPrefix`, then use that instead of `go:`.
diff --git a/go/index.js b/go/index.js
index 470010a9..16b6df98 100644
--- a/go/index.js
+++ b/go/index.js
@@ -1,13 +1,31 @@
+// configuration (and defaults)
+var hostname = process.env.HOSTN;
 var httpPort = process.env.PORT || 1337;
 var redisPrefix = 'go:';
-
+
+
+// automatic configuration
+var uriPrefix = '';
+if (hostname) {
+  uriPrefix += 'http://' + hostname;
+  if (httpPort != 80) {
+    uriPrefix += ':' + httpPort;
+  }
+}
+
+
+// load libraries
 var http = require('http');
 var formidable = require('formidable');
 var redis = require('redis');
-
+
+
+// instantiate components
 var redisClient = redis.createClient();
 var httpServer = http.createServer(listener);
-
+
+
+// setup compoments
 redisClient.on('error', function (err) {
   console.log('redis made a bubu:', err.message);
   process.exit(23);
@@ -15,7 +33,9 @@ redisClient.on('error', function (err) {
 httpServer.listen(httpPort, function () {
   console.log('http server listening on port', httpPort);
 });
-
+
+
+// http handler
 function listener (req, res) {
   if (req.method === 'POST' && req.url === '/') {
     return create(req, res);
@@ -25,7 +45,7 @@ function listener (req, res) {
     return methodNotAllowed(req, res);
   }
 }
-
+
 function create (req, res) {
   redisClient.incr(redisPrefix + 'index', function (err, reply) {
     if (err) {
@@ -41,8 +61,9 @@ function create (req, res) {
 
       var uri = fields.uri;
       // TODO check uri(?)
-      var shortUri = '/' + reply;
-      var key = redisPrefix + shortUri;
+      var shortPath = '/' + reply;
+      var shortUri = uriPrefix + shortPath;
+      var key = redisPrefix + shortPath;
 
       redisClient.set(key, uri, function (error) {
         if (error) {
@@ -55,7 +76,7 @@ function create (req, res) {
     });
   });
 }
-
+
 function retrieve (req, res) {
   var key = redisPrefix + req.url;
   redisClient.get(key, function (error, reply) {
@@ -75,7 +96,7 @@ function retrieve (req, res) {
     return res.end();
   });
 }
-
+
 function methodNotAllowed (req, res) {
   res.writeHead(405, { 'content-type': 'text/plain' });
   return res.end('method not allowed\r\n');