Serve fonts

src/serve_font.js

@@ -0,0 +1,42 @@
+'use strict';
+
+var path = require('path'),
+    fs = require('fs');
+
+var clone = require('clone'),
+    express = require('express');
+
+
+module.exports = function(fontPath, allowedFonts) {
+  var app = express().disable('x-powered-by');
+
+  var rootPath = path.join(process.cwd(), fontPath || '');
+
+  app.get('/fonts/:fontstack/:range([\\d]+-[\\d]+).pbf',
+      function(req, res, next) {
+    var fontstack = decodeURI(req.params.fontstack);
+    var range = req.params.range;
+
+    var fonts = fontstack.split(',');
+    if (fonts.length == 1) {
+      if (allowedFonts[fonts[0]]) {
+        var filename = rootPath + '/' + fonts[0] + '/' + range + '.pbf';
+        return fs.readFile(filename, function(err, data) {
+          if (err) {
+            console.log('Font load error:', filename);
+            return res.status(404).send('File not found');
+          } else {
+            res.header('Content-type', 'application/x-protobuf');
+            return res.send(data);
+          }
+        });
+      } else {
+        return res.status(403).send('Forbidden');
+      }
+    } else {
+      return res.status(501).send('Not Yet Implemented');
+    }
+  });
+
+  return app;
+};