Make use of the new generic key_name by lookup up scope_path
This way base classes do not have to look up the 'scope' property,
instead they can rely on the base class to do it for them provided
they define the 'scope_logic' param.
Patch by: Sverre Rabbelier
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()