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django/tests/auth_tests/test_mixins.py
Markus Holtermann e5cb4e1411 Fixed #24914 -- Added authentication mixins for CBVs
Added the mixins LoginRequiredMixin, PermissionRequiredMixin and
UserPassesTestMixin to contrib.auth as counterparts to the respective
view decorators.

The authentication mixins UserPassesTestMixin, LoginRequiredMixin and
PermissionRequiredMixin have been inspired by django-braces
<https://github.com/brack3t/django-braces/>

Thanks Raphael Michel for the initial patch, tests and docs on the PR
and Ana Balica, Kenneth Love, Marc Tamlyn, and Tim Graham for the
review.
2015-06-17 23:19:10 +02:00

252 lines
8.1 KiB
Python

from django.contrib.auth import models
from django.contrib.auth.mixins import (
LoginRequiredMixin, PermissionRequiredMixin, UserPassesTestMixin,
)
from django.contrib.auth.models import AnonymousUser
from django.core.exceptions import PermissionDenied
from django.http import HttpResponse
from django.test import RequestFactory, TestCase
from django.views.generic import View
class AlwaysTrueMixin(UserPassesTestMixin):
def test_func(self):
return True
class AlwaysFalseMixin(UserPassesTestMixin):
def test_func(self):
return False
class EmptyResponseView(View):
def get(self, request, *args, **kwargs):
return HttpResponse()
class AlwaysTrueView(AlwaysTrueMixin, EmptyResponseView):
pass
class AlwaysFalseView(AlwaysFalseMixin, EmptyResponseView):
pass
class StackedMixinsView1(LoginRequiredMixin, PermissionRequiredMixin, EmptyResponseView):
permission_required = ['auth.add_customuser', 'auth.change_customuser']
raise_exception = True
class StackedMixinsView2(PermissionRequiredMixin, LoginRequiredMixin, EmptyResponseView):
permission_required = ['auth.add_customuser', 'auth.change_customuser']
raise_exception = True
class AccessMixinTests(TestCase):
factory = RequestFactory()
def test_stacked_mixins_success(self):
user = models.User.objects.create(username='joe', password='qwerty')
perms = models.Permission.objects.filter(codename__in=('add_customuser', 'change_customuser'))
user.user_permissions.add(*perms)
request = self.factory.get('/rand')
request.user = user
view = StackedMixinsView1.as_view()
response = view(request)
self.assertEqual(response.status_code, 200)
view = StackedMixinsView2.as_view()
response = view(request)
self.assertEqual(response.status_code, 200)
def test_stacked_mixins_missing_permission(self):
user = models.User.objects.create(username='joe', password='qwerty')
perms = models.Permission.objects.filter(codename__in=('add_customuser',))
user.user_permissions.add(*perms)
request = self.factory.get('/rand')
request.user = user
view = StackedMixinsView1.as_view()
with self.assertRaises(PermissionDenied):
view(request)
view = StackedMixinsView2.as_view()
with self.assertRaises(PermissionDenied):
view(request)
def test_stacked_mixins_not_logged_in(self):
user = models.User.objects.create(username='joe', password='qwerty')
user.is_authenticated = lambda: False
perms = models.Permission.objects.filter(codename__in=('add_customuser', 'change_customuser'))
user.user_permissions.add(*perms)
request = self.factory.get('/rand')
request.user = user
view = StackedMixinsView1.as_view()
with self.assertRaises(PermissionDenied):
view(request)
view = StackedMixinsView2.as_view()
with self.assertRaises(PermissionDenied):
view(request)
class UserPassesTestTests(TestCase):
factory = RequestFactory()
def _test_redirect(self, view=None, url='/accounts/login/?next=/rand'):
if not view:
view = AlwaysFalseView.as_view()
request = self.factory.get('/rand')
request.user = AnonymousUser()
response = view(request)
self.assertEqual(response.status_code, 302)
self.assertEqual(response.url, url)
def test_default(self):
self._test_redirect()
def test_custom_redirect_url(self):
class AView(AlwaysFalseView):
login_url = '/login/'
self._test_redirect(AView.as_view(), '/login/?next=/rand')
def test_custom_redirect_parameter(self):
class AView(AlwaysFalseView):
redirect_field_name = 'goto'
self._test_redirect(AView.as_view(), '/accounts/login/?goto=/rand')
def test_no_redirect_parameter(self):
class AView(AlwaysFalseView):
redirect_field_name = None
self._test_redirect(AView.as_view(), '/accounts/login/')
def test_raise_exception(self):
class AView(AlwaysFalseView):
raise_exception = True
request = self.factory.get('/rand')
request.user = AnonymousUser()
self.assertRaises(PermissionDenied, AView.as_view(), request)
def test_raise_exception_custom_message(self):
msg = "You don't have access here"
class AView(AlwaysFalseView):
raise_exception = True
permission_denied_message = msg
request = self.factory.get('/rand')
request.user = AnonymousUser()
view = AView.as_view()
with self.assertRaises(PermissionDenied) as cm:
view(request)
self.assertEqual(cm.exception.args[0], msg)
def test_raise_exception_custom_message_function(self):
msg = "You don't have access here"
class AView(AlwaysFalseView):
raise_exception = True
def get_permission_denied_message(self):
return msg
request = self.factory.get('/rand')
request.user = AnonymousUser()
view = AView.as_view()
with self.assertRaises(PermissionDenied) as cm:
view(request)
self.assertEqual(cm.exception.args[0], msg)
def test_user_passes(self):
view = AlwaysTrueView.as_view()
request = self.factory.get('/rand')
request.user = AnonymousUser()
response = view(request)
self.assertEqual(response.status_code, 200)
class LoginRequiredMixinTests(TestCase):
factory = RequestFactory()
@classmethod
def setUpTestData(cls):
cls.user = models.User.objects.create(username='joe', password='qwerty')
def test_login_required(self):
"""
Check that login_required works on a simple view wrapped in a
login_required decorator.
"""
class AView(LoginRequiredMixin, EmptyResponseView):
pass
view = AView.as_view()
request = self.factory.get('/rand')
request.user = AnonymousUser()
response = view(request)
self.assertEqual(response.status_code, 302)
self.assertEqual('/accounts/login/?next=/rand', response.url)
request = self.factory.get('/rand')
request.user = self.user
response = view(request)
self.assertEqual(response.status_code, 200)
class PermissionsRequiredMixinTests(TestCase):
factory = RequestFactory()
@classmethod
def setUpTestData(cls):
cls.user = models.User.objects.create(username='joe', password='qwerty')
perms = models.Permission.objects.filter(codename__in=('add_customuser', 'change_customuser'))
cls.user.user_permissions.add(*perms)
def test_many_permissions_pass(self):
class AView(PermissionRequiredMixin, EmptyResponseView):
permission_required = ['auth.add_customuser', 'auth.change_customuser']
request = self.factory.get('/rand')
request.user = self.user
resp = AView.as_view()(request)
self.assertEqual(resp.status_code, 200)
def test_single_permission_pass(self):
class AView(PermissionRequiredMixin, EmptyResponseView):
permission_required = 'auth.add_customuser'
request = self.factory.get('/rand')
request.user = self.user
resp = AView.as_view()(request)
self.assertEqual(resp.status_code, 200)
def test_permissioned_denied_redirect(self):
class AView(PermissionRequiredMixin, EmptyResponseView):
permission_required = ['auth.add_customuser', 'auth.change_customuser', 'non-existent-permission']
request = self.factory.get('/rand')
request.user = self.user
resp = AView.as_view()(request)
self.assertEqual(resp.status_code, 302)
def test_permissioned_denied_exception_raised(self):
class AView(PermissionRequiredMixin, EmptyResponseView):
permission_required = ['auth.add_customuser', 'auth.change_customuser', 'non-existent-permission']
raise_exception = True
request = self.factory.get('/rand')
request.user = self.user
self.assertRaises(PermissionDenied, AView.as_view(), request)