1 files changed, 36 insertions, 0 deletions
diff --git a/appengine_django/auth/middleware.py b/appengine_django/auth/middleware.py
new file mode 100644
index 0000000..a727e47
--- /dev/null
+++ b/appengine_django/auth/middleware.py
@@ -0,0 +1,36 @@
+# Copyright 2008 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from django.contrib.auth.models import AnonymousUser
+
+from google.appengine.api import users
+
+from appengine_django.auth.models import User
+
+
+class LazyUser(object):
+  def __get__(self, request, obj_type=None):
+    if not hasattr(request, '_cached_user'):
+      user = users.get_current_user()
+      if user:
+        request._cached_user = User.get_djangouser_for_user(user)
+      else:
+        request._cached_user = AnonymousUser()
+    return request._cached_user
+
+
+class AuthenticationMiddleware(object):
+  def process_request(self, request):
+    request.__class__.user = LazyUser()
+    return None