--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/app/django/contrib/auth/middleware.py	Fri Jul 18 18:22:23 2008 +0000
@@ -0,0 +1,12 @@
+class LazyUser(object):
+    def __get__(self, request, obj_type=None):
+        if not hasattr(request, '_cached_user'):
+            from django.contrib.auth import get_user
+            request._cached_user = get_user(request)
+        return request._cached_user
+
+class AuthenticationMiddleware(object):
+    def process_request(self, request):
+        assert hasattr(request, 'session'), "The Django authentication middleware requires session middleware to be installed. Edit your MIDDLEWARE_CLASSES setting to insert 'django.contrib.sessions.middleware.SessionMiddleware'."
+        request.__class__.user = LazyUser()
+        return None