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Code Issues 25 Releases Wiki Activity

Removed Django 1.2 compatibility fallback for form wizard hash

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git-svn-id: http://code.djangoproject.com/svn/django/trunk@15951 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Luke Plant 2011-03-30 17:34:49 +00:00
parent 25aaa359a2
commit fa4bbfcbfb
3 changed files with 3 additions and 60 deletions
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39
django/contrib/formtools/tests/__init__.py
View File

@ -249,14 +249,6 @@ class WizardClass(wizard.FormWizard):
return http.HttpResponse(success_string)
class UserSecuredWizardClass(WizardClass):
"""
Wizard with a custum security_hash method
"""
def security_hash(self, request, form):
return "123"
class DummyRequest(http.HttpRequest):
def __init__(self, POST=None):
@ -310,36 +302,7 @@ class WizardTests(TestCase):
"wizard_step": "1"})
self.assertEqual(0, response.context['step0'])
def test_good_hash_django12(self):
"""
Form should advance if the hash is present and good, as calculated using
django 1.2 method.
"""
# We are hard-coding a hash value here, but that is OK, since we want to
# ensure that we don't accidentally change the algorithm.
data = {"0-field": "test",
"1-field": "test2",
"hash_0": "2fdbefd4c0cad51509478fbacddf8b13",
"wizard_step": "1"}
response = self.client.post('/wizard/', data)
self.assertEqual(2, response.context['step0'])
def test_good_hash_django12_subclass(self):
"""
The Django 1.2 method of calulating hashes should *not* be used as a
fallback if the FormWizard subclass has provided their own method
of calculating a hash.
"""
# We are hard-coding a hash value here, but that is OK, since we want to
# ensure that we don't accidentally change the algorithm.
data = {"0-field": "test",
"1-field": "test2",
"hash_0": "2fdbefd4c0cad51509478fbacddf8b13",
"wizard_step": "1"}
response = self.client.post('/wizard2/', data)
self.assertEqual(0, response.context['step0'])
def test_good_hash_current(self):
def test_good_hash(self):
"""
Form should advance if the hash is present and good, as calculated using
current method.

3
django/contrib/formtools/tests/urls.py
View File

@ -11,7 +11,4 @@ urlpatterns = patterns('',
(r'^wizard/$', WizardClass([WizardPageOneForm,
WizardPageTwoForm,
WizardPageThreeForm])),
(r'^wizard2/$', UserSecuredWizardClass([WizardPageOneForm,
WizardPageTwoForm,
WizardPageThreeForm]))
)

21
django/contrib/formtools/wizard.py
View File

@ -11,7 +11,7 @@ except ImportError:
from django import forms
from django.conf import settings
from django.contrib.formtools.utils import security_hash, form_hmac
from django.contrib.formtools.utils import form_hmac
from django.http import Http404
from django.shortcuts import render_to_response
from django.template.context import RequestContext
@ -58,24 +58,7 @@ class FormWizard(object):
def _check_security_hash(self, token, request, form):
expected = self.security_hash(request, form)
if constant_time_compare(token, expected):
return True
else:
# Fall back to Django 1.2 method, for compatibility with forms that
# are in the middle of being used when the upgrade occurs. However,
# we don't want to do this fallback if a subclass has provided their
# own security_hash method - because they might have implemented a
# more secure method, and this would punch a hole in that.
# PendingDeprecationWarning <- left here to remind us that this
# compatibility fallback should be removed in Django 1.5
FormWizard_expected = FormWizard.security_hash(self, request, form)
if expected == FormWizard_expected:
# They didn't override security_hash, do the fallback:
old_expected = security_hash(request, form)
return constant_time_compare(token, old_expected)
else:
return False
return constant_time_compare(token, expected)
@method_decorator(csrf_protect)
def __call__(self, request, *args, **kwargs):