app/django/core/xheaders.py
author Daniel Bentley <dbentley@google.com>
Sun, 12 Apr 2009 09:06:45 +0000
changeset 2168 ef7222d4847f
parent 54 03e267d67478
permissions -rw-r--r--
Use offset_linkid instead of offset to scan >1000 entities. this is a first-cut. It works in all the ways I could make earlier versions fail. It passes link_id as URL parameters. It also has a new class LinkCreator which makes the main body of getListContents even easier to write. I wasn't sure if link_id's could have non alphanumeric characters; if so, they need to be URL encoded/decoded. I also need to go and remove any mention of raw offsets now, because we don't use them. I believe I've talked about this approach with a few of you and it sounded reasonable. Feel free to roll-back/fix/amend/comment-for-me-to-fix. This is my first big-logic-change to Melange. Patch by: Dan Bentley

"""
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)