bogart.file adds appropriate content type based on mime type of file …

…extension
nrstott · Sep 23, 2011 · 9d2ebf3 · 9d2ebf3
1 parent e2f54fe
commit 9d2ebf3
Show file tree

Hide file tree

Showing 2 changed files with 20 additions and 0 deletions.
diff --git a/examples/pipe-file.js b/examples/pipe-file.js
@@ -17,4 +17,10 @@ app.get('/image.jpg', function(req) {
   });
 });
 
+app.get('/cat.jpg', function(req) {
+	var filePath = path.join(__dirname, 'static-server', 'public', 'images', 'ninja-cat.jpg');
+
+  return bogart.file(filePath);
+});
+
 bogart.start(app);
diff --git a/lib/bogart.js b/lib/bogart.js
@@ -580,6 +580,16 @@ exports.pipe = function(stream, opts) {
   }
 };
 
+/**
+ * Get MIME type for a file extension
+ *
+ * @param {String} ext  File extension
+ * @returns {String}  MIME type of file extension.
+ */
+exports.mimeType = function(ext) {
+  return require("./mimetypes").mimeType(ext);
+};
+
 /**
  * Creates a JSGI response that streams a file
  *
@@ -589,6 +599,10 @@ exports.pipe = function(stream, opts) {
  * @returns {Promise} A promise for a JSGI response
  */
 exports.file = function(filePath, opts) {
+  opts = opts || {};
+  opts.headers = opts.headers || {};
+  opts.headers['Content-Type'] = opts.headers['Content-Type'] || exports.mimeType(path.extname(filePath));
+
   return exports.pipe(fs.createReadStream(filePath), opts);
 };