app/django/http/utils.py
author Pawel Solyga <Pawel.Solyga@gmail.com>
Fri, 12 Sep 2008 16:33:04 +0000
changeset 135 a7ccde9d9eed
parent 54 03e267d67478
child 323 ff1a9aa48cfd
permissions -rw-r--r--
Fixed one typo in response_helpers which caused is_admin context variable not to work correctly. Created new checkLinkNameForId function that checks if link_name is correct when creating new user and modifying existing one. This is now used for validation instead of doesLinkNameBelongToId in UserForm clean_link_name function. The previous validation function didn't allow to create new users and modify linkname of existing ones. Additionally I created new doesLinkNameExist helper function.

"""
Functions that modify an HTTP request or response in some way.
"""

# This group of functions are run as part of the response handling, after
# everything else, including all response middleware. Think of them as
# "compulsory response middleware". Be careful about what goes here, because
# it's a little fiddly to override this behavior, so they should be truly
# universally applicable.

def fix_location_header(request, response):
    """
    Ensures that we always use an absolute URI in any location header in the
    response. This is required by RFC 2616, section 14.30.

    Code constructing response objects is free to insert relative paths, as
    this function converts them to absolute paths.
    """
    if 'Location' in response and request.get_host():
        response['Location'] = request.build_absolute_uri(response['Location'])
    return response

def conditional_content_removal(request, response):
    """
    Removes the content of responses for HEAD requests, 1xx, 204 and 304
    responses. Ensures compliance with RFC 2616, section 4.3.
    """
    if 100 <= response.status_code < 200 or response.status_code in (204, 304):
       response.content = ''
       response['Content-Length'] = 0
    if request.method == 'HEAD':
        response.content = ''
    return response