--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/app/django/core/xheaders.py	Fri Jul 18 18:22:23 2008 +0000
@@ -0,0 +1,24 @@
+"""
+Pages in Django can are served up with custom HTTP headers containing useful
+information about those pages -- namely, the content type and object ID.
+
+This module contains utility functions for retrieving and doing interesting
+things with these special "X-Headers" (so called because the HTTP spec demands
+that custom headers are prefixed with "X-").
+
+Next time you're at slashdot.org, watch out for X-Fry and X-Bender. :)
+"""
+
+def populate_xheaders(request, response, model, object_id):
+    """
+    Adds the "X-Object-Type" and "X-Object-Id" headers to the given
+    HttpResponse according to the given model and object_id -- but only if the
+    given HttpRequest object has an IP address within the INTERNAL_IPS setting
+    or if the request is from a logged in staff member.
+    """
+    from django.conf import settings
+    if (request.META.get('REMOTE_ADDR') in settings.INTERNAL_IPS
+            or (hasattr(request, 'user') and request.user.is_authenticated()
+                and request.user.is_staff)):
+        response['X-Object-Type'] = "%s.%s" % (model._meta.app_label, model._meta.object_name.lower())
+        response['X-Object-Id'] = str(object_id)