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from unittest import mock
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, SimpleTestCase, 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_tests.add_customuser", "auth_tests.change_customuser"]
raise_exception = True
class StackedMixinsView2(
PermissionRequiredMixin, LoginRequiredMixin, EmptyResponseView
):
permission_required = ["auth_tests.add_customuser", "auth_tests.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_access_mixin_permission_denied_response(self):
user = models.User.objects.create(username="joe", password="qwerty")
# Authenticated users receive PermissionDenied.
request = self.factory.get("/rand")
request.user = user
view = AlwaysFalseView.as_view()
with self.assertRaises(PermissionDenied):
view(request)
# Anonymous users are redirected to the login page.
request.user = AnonymousUser()
response = view(request)
self.assertEqual(response.status_code, 302)
self.assertEqual(response.url, "/accounts/login/?next=/rand")
def test_access_mixin_permission_denied_remote_login_url(self):
class AView(AlwaysFalseView):
login_url = "https://www.remote.example.com/login"
view = AView.as_view()
request = self.factory.get("/rand")
request.user = AnonymousUser()
response = view(request)
self.assertEqual(response.status_code, 302)
self.assertEqual(
response.url,
"https://www.remote.example.com/login?next=http%3A//testserver/rand",
)
@mock.patch.object(models.User, "is_authenticated", False)
def test_stacked_mixins_not_logged_in(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()
with self.assertRaises(PermissionDenied):
view(request)
view = StackedMixinsView2.as_view()
with self.assertRaises(PermissionDenied):
view(request)
class UserPassesTestTests(SimpleTestCase):
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()
with 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.assertRaisesMessage(PermissionDenied, msg):
view(request)
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.assertRaisesMessage(PermissionDenied, msg):
view(request)
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):
"""
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_tests.add_customuser",
"auth_tests.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_tests.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_tests.add_customuser",
"auth_tests.change_customuser",
"nonexistent-permission",
]
# Authenticated users receive PermissionDenied.
request = self.factory.get("/rand")
request.user = self.user
with self.assertRaises(PermissionDenied):
AView.as_view()(request)
# Anonymous users are redirected to the login page.
request.user = AnonymousUser()
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_tests.add_customuser",
"auth_tests.change_customuser",
"nonexistent-permission",
]
raise_exception = True
request = self.factory.get("/rand")
request.user = self.user
with self.assertRaises(PermissionDenied):
AView.as_view()(request)
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