Add content-type to responses

* fixes bug 928055

Change-Id: Id86a9b3361d27493ed5ef175462aa1d4c1001bf4

keystone/common/wsgi.py

@@ -177,10 +177,13 @@ class Application(BaseApplication):
         elif isinstance(result, webob.exc.WSGIHTTPException):
             return result
 
-        return self._serialize(result)
+        response = webob.Response()
+        self._serialize(response, result)
+        return response
 
-    def _serialize(self, result):
-        return json.dumps(result, cls=utils.SmarterEncoder)
+    def _serialize(self, response, result):
+        response.content_type = 'application/json'
+        response.body = json.dumps(result, cls=utils.SmarterEncoder)
 
     def _normalize_arg(self, arg):
         return str(arg).replace(':', '_').replace('-', '_')

tests/test_wsgi.py

@@ -0,0 +1,25 @@
+import webob
+
+from keystone import test
+from keystone.common import wsgi
+
+
+class FakeApp(wsgi.Application):
+    def index(self, context):
+        return {'a': 'b'}
+
+
+class ApplicationTest(test.TestCase):
+    def setUp(self):
+        self.app = FakeApp()
+
+    def _make_request(self):
+        req = webob.Request.blank('/')
+        args = {'action': 'index', 'controller': self.app}
+        req.environ['wsgiorg.routing_args'] = [None, args]
+        return req
+
+    def test_response_content_type(self):
+        req = self._make_request()
+        resp = req.get_response(self.app)
+        self.assertEqual(resp.content_type, 'application/json')