1 files changed, 41 insertions, 0 deletions
diff --git a/mediagoblin/tools/json.py b/mediagoblin/tools/json.py
new file mode 100644
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+++ b/mediagoblin/tools/json.py
@@ -0,0 +1,41 @@
+# GNU MediaGoblin -- federated, autonomous media hosting
+# Copyright (C) 2011, 2012 MediaGoblin contributors.  See AUTHORS.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import json
+
+from werkzeug.wrappers import Response
+
+def json_response(serializable, _disable_cors=False, *args, **kw):
+    '''
+    Serializes a json objects and returns a werkzeug Response object with the
+    serialized value as the response body and Content-Type: application/json.
+
+    :param serializable: A json-serializable object
+
+    Any extra arguments and keyword arguments are passed to the
+    Response.__init__ method.
+    '''
+    response = Response(json.dumps(serializable), *args, content_type='application/json', **kw)
+
+    if not _disable_cors:
+        cors_headers = {
+                'Access-Control-Allow-Origin': '*',
+                'Access-Control-Allow-Methods': 'POST, GET, OPTIONS',
+                'Access-Control-Allow-Headers': 'Content-Type, X-Requested-With'}
+        for key, value in cors_headers.iteritems():
+            response.headers.set(key, value)
+
+    return response