1 """

     2 Pages in Django can are served up with custom HTTP headers containing useful

     3 information about those pages -- namely, the content type and object ID.

     4 

     5 This module contains utility functions for retrieving and doing interesting

     6 things with these special "X-Headers" (so called because the HTTP spec demands

     7 that custom headers are prefixed with "X-").

     8 

     9 Next time you're at slashdot.org, watch out for X-Fry and X-Bender. :)

    10 """

    11 

    12 def populate_xheaders(request, response, model, object_id):

    13     """

    14     Adds the "X-Object-Type" and "X-Object-Id" headers to the given

    15     HttpResponse according to the given model and object_id -- but only if the

    16     given HttpRequest object has an IP address within the INTERNAL_IPS setting

    17     or if the request is from a logged in staff member.

    18     """

    19     from django.conf import settings

    20     if (request.META.get('REMOTE_ADDR') in settings.INTERNAL_IPS

    21             or (hasattr(request, 'user') and request.user.is_authenticated()

    22                 and request.user.is_staff)):

    23         response['X-Object-Type'] = "%s.%s" % (model._meta.app_label, model._meta.object_name.lower())

    24         response['X-Object-Id'] = str(object_id)