app/django/http/utils.py
author Augie Fackler <durin42@gmail.com>
Sun, 21 Sep 2008 02:16:00 +0000
changeset 180 a1c6123f9d06
parent 54 03e267d67478
child 323 ff1a9aa48cfd
permissions -rw-r--r--
Two changes to ease CI: 1) If pysvn is missing, the tests for svn_helper don't run and pollute the output 2) svn_helper no longer depends on being located at trunk/scripts/ Patch by: Augie Fackler Review by: Todd Larsen Review Issue: 802 Reviewed URL: http://codereviews.googleopensourceprograms.com/802

"""
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