[proposal] Create extension to Python Cookie module

Here is some code (credits to the guys at pocoo.org for the solution). This is just an example solution, thus no diff (as I'd have to install trunk to do the diff :P). If it's accepted I can create a patch.

# Code modifications credit to pocoo.org team
from Cookie import SimpleCookie, Morsel, CookieError

def parse_cookie(cookie):
    if cookie == '':
        return {}
    c = _ExtendedSimpleCookie()
    c.load(cookie)
    cookiedict = {}
    for key, value in c.iteritems():
        try:
            cookiedict[key] = value.value.decode('utf-8', 'ignore')
        except AttributeError:
            pass
    return cookiedict

class _ExtendedMorsel(Morsel):
    """
    Subclass of regular morsels for simpler usage and support of the
    nonstandard but useful http only header.
    """
    _reserved = {'httponly': 'HttpOnly'}
    _reserved.update(Morsel._reserved)

    def __init__(self, name=None, value=None):
        Morsel.__init__(self)
        if name is not None:
            self.set(name, value, value)

    def OutputString(self, attrs=None):
        httponly = self.pop('httponly', False)
        result = Morsel.OutputString(self, attrs).rstrip('\t ;')
        if httponly:
            result += '; HttpOnly'
        return result

    def set(self, *args, **kwargs):
        try:
            Morsel.set(self, *args, **kwargs)
        except CookieError:
            pass

class _ExtendedSimpleCookie(SimpleCookie):

    def _BaseCookie__set(self, key, real_value, coded_value):
        morsel = self.get(key, _ExtendedMorsel())
        morsel.set(key, real_value, coded_value)
        dict.__setitem__(self, key, morsel)

There's a ticket already for HttpOnly?, #3304. This patch looks nicer.

This is probably a someday/maybe feature. However, in the sample code given, trying to decode the cookie value as UTF-8 (or with any encoding) isn't correct. Cookie data should be treated as opaque, because there's no uniformly respected standard for encoding there. It's up to the client app to make sure that ASCII data is sent out and then decode it as appropriate.

My "parse_cookie" patch