app/django/core/xheaders.py
author Daniel Hans <Daniel.M.Hans@gmail.com>
Tue, 03 Nov 2009 00:50:23 +0100
changeset 3075 1e78db95e38a
parent 54 03e267d67478
permissions -rw-r--r--
getListContentForData function added to lists helper. It allows to manually set a list of entities which is to be displayed on the view. Previously, the only function was getListContent, but it retrived data on its own by a single query. The new function can be useful whenever it is impossible or very awkward to obtain entities in such a way (for example more sophisticated SQL statements). Additionally, the getListContent function is reconstructed so that it collects the data first and then calls getListContentForData.

"""
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)