Merge pull request #129 from makenosound/master

Add config option for `tileHost`

README.md

@@ -132,10 +132,34 @@ as localhost, specify that hostname when you run TileStream:
     tilestream --host 127.0.0.1
     tilestream --host yourhost.com
 
-
 In these examples, you would only be able to access tilestream from `127.0.0.1`
 or `yourhost.com`, respectively, due to security restrictions.
 
+You can also specify the hostname TileStream should use for URLs in its
+responses by setting a custom `tileHost` value:
+
+    tilestream --tileHost yourhost.com
+    ./index.js start --tileHost="yourhost.com"
+
+This is useful if you want to sit your TileStream server behind a proxy (such as
+nginx) and restrict direct access to TileStream:
+
+    tilestream --tileHost yourhost.com --host 127.0.0.1
+    ./index.js start --tileHost="yourhost.com" --host="127.0.0.1"
+
+These configuration flags can also be set using a JSON file:
+
+    ./index.js start --config config.json
+
+Where `config.json` is something like:
+
+    {
+      "host": ["127.0.0.1"],
+      "tileHost": "yourhost.com",
+      "tilePort": 8888,
+      "uiPort": 8888
+    }
+
 
 Usage
 -----

commands/global.bones

@@ -12,6 +12,12 @@ Bones.Command.options['tilePort'] = {
     'default': 8888
 };
 
+Bones.Command.options['tileHost'] = {
+    'title': 'tileHost=[host]',
+    'description': 'Tile hostname',
+    'default': 'req.headers.host'
+};
+
 Bones.Command.options['subdomains'] = {
     'title': 'subdomains=[list]',
     'description': 'Comma separated list of subdomains to use for tiles.'

servers/Host.bones

@@ -31,7 +31,7 @@ server.prototype.hostInfo = function(req, res, next) {
 
     if (req.headers && req.headers.host && !req.query.uiHost) {
         req.query.uiHost = req.headers.host;
-        req.query.tileHost = [req.headers.host];
+        req.query.tileHost = this.config.tileHost || [req.headers.host];
         if (subdomains) {
             // Add subdomains for tiles.
             var basehost = this.removeTileSubdomain(req.headers.host);