Fixed #12066 - Moved auth context processor from core to the auth app. Thanks, Rob Hudson.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@12466 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/core/context_processors.py

@@ -9,38 +9,25 @@ RequestContext.
 
 from django.conf import settings
 from django.middleware.csrf import get_token
-from django.utils.functional import lazy, memoize, SimpleLazyObject
-from django.contrib import messages
+from django.utils.functional import lazy
 
 def auth(request):
     """
-    Returns context variables required by apps that use Django's authentication
-    system.
+    DEPRECATED. This context processor is the old location, and has been moved
+    to `django.contrib.auth.context_processors`.
 
-    If there is no 'user' attribute in the request, uses AnonymousUser (from
-    django.contrib.auth).
+    This function still exists for backwards-compatibility; it will be removed
+    in Django 1.4.
     """
-    # If we access request.user, request.session is accessed, which results in
-    # 'Vary: Cookie' being sent in every request that uses this context
-    # processor, which can easily be every request on a site if
-    # TEMPLATE_CONTEXT_PROCESSORS has this context processor added.  This kills
-    # the ability to cache.  So, we carefully ensure these attributes are lazy.
-    # We don't use django.utils.functional.lazy() for User, because that
-    # requires knowing the class of the object we want to proxy, which could
-    # break with custom auth backends.  LazyObject is a less complete but more
-    # flexible solution that is a good enough wrapper for 'User'.
-    def get_user():
-        if hasattr(request, 'user'):
-            return request.user
-        else:
-            from django.contrib.auth.models import AnonymousUser
-            return AnonymousUser()
-
-    return {
-        'user': SimpleLazyObject(get_user),
-        'messages': messages.get_messages(request),
-        'perms': lazy(lambda: PermWrapper(get_user()), PermWrapper)(),
-    }
+    import warnings
+    warnings.warn(
+        "The context processor at `django.core.context_processors.auth` is " \
+        "deprecated; use the path `django.contrib.auth.context_processors.auth` " \
+        "instead.",
+        PendingDeprecationWarning
+    )
+    from django.contrib.auth.context_processors import auth as auth_context_processor
+    return auth_context_processor(request)
 
 def csrf(request):
     """