app/django/contrib/formtools/utils.py
author Pawel Solyga <Pawel.Solyga@gmail.com>
Thu, 02 Apr 2009 10:11:38 +0000
changeset 2051 cecbef1289a5
parent 323 ff1a9aa48cfd
permissions -rw-r--r--
Make the mentor and organization admin comment submission on student proposal nicer. Now drop down box allows you to select comment type and based on selected type and your current Role shows you available comment options. Left TODO to put inline JS into separate JS file. Patch by: Tim Ansell (small fixes by Pawel Solyga) Reviewed by: Pawel Solyga

try:
    import cPickle as pickle
except ImportError:
    import pickle

from django.conf import settings
from django.utils.hashcompat import md5_constructor
from django.forms import BooleanField

def security_hash(request, form, *args):
    """
    Calculates a security hash for the given Form instance.

    This creates a list of the form field names/values in a deterministic
    order, pickles the result with the SECRET_KEY setting, then takes an md5
    hash of that.
    """

    data = [(bf.name, bf.field.clean(bf.data) or '') for bf in form]
    data.extend(args)
    data.append(settings.SECRET_KEY)

    # Use HIGHEST_PROTOCOL because it's the most efficient. It requires
    # Python 2.3, but Django requires 2.3 anyway, so that's OK.
    pickled = pickle.dumps(data, pickle.HIGHEST_PROTOCOL)

    return md5_constructor(pickled).hexdigest()