diff options
Diffstat (limited to 'tests/test_permissions.py')
| -rw-r--r-- | tests/test_permissions.py | 291 |
1 files changed, 291 insertions, 0 deletions
diff --git a/tests/test_permissions.py b/tests/test_permissions.py new file mode 100644 index 00000000..a2cb0c36 --- /dev/null +++ b/tests/test_permissions.py @@ -0,0 +1,291 @@ +from __future__ import unicode_literals +from django.contrib.auth.models import User, Permission, Group +from django.db import models +from django.test import TestCase +from django.utils import unittest +from rest_framework import generics, status, permissions, authentication, HTTP_HEADER_ENCODING +from rest_framework.compat import guardian, get_model_name +from rest_framework.filters import DjangoObjectPermissionsFilter +from rest_framework.test import APIRequestFactory +from tests.models import BasicModel +import base64 + +factory = APIRequestFactory() + +class RootView(generics.ListCreateAPIView): + model = BasicModel + authentication_classes = [authentication.BasicAuthentication] + permission_classes = [permissions.DjangoModelPermissions] + + +class InstanceView(generics.RetrieveUpdateDestroyAPIView): + model = BasicModel + authentication_classes = [authentication.BasicAuthentication] + permission_classes = [permissions.DjangoModelPermissions] + +root_view = RootView.as_view() +instance_view = InstanceView.as_view() + + +def basic_auth_header(username, password): + credentials = ('%s:%s' % (username, password)) + base64_credentials = base64.b64encode(credentials.encode(HTTP_HEADER_ENCODING)).decode(HTTP_HEADER_ENCODING) + return 'Basic %s' % base64_credentials + + +class ModelPermissionsIntegrationTests(TestCase): + def setUp(self): + User.objects.create_user('disallowed', 'disallowed@example.com', 'password') + user = User.objects.create_user('permitted', 'permitted@example.com', 'password') + user.user_permissions = [ + Permission.objects.get(codename='add_basicmodel'), + Permission.objects.get(codename='change_basicmodel'), + Permission.objects.get(codename='delete_basicmodel') + ] + user = User.objects.create_user('updateonly', 'updateonly@example.com', 'password') + user.user_permissions = [ + Permission.objects.get(codename='change_basicmodel'), + ] + + self.permitted_credentials = basic_auth_header('permitted', 'password') + self.disallowed_credentials = basic_auth_header('disallowed', 'password') + self.updateonly_credentials = basic_auth_header('updateonly', 'password') + + BasicModel(text='foo').save() + + def test_has_create_permissions(self): + request = factory.post('/', {'text': 'foobar'}, format='json', + HTTP_AUTHORIZATION=self.permitted_credentials) + response = root_view(request, pk=1) + self.assertEqual(response.status_code, status.HTTP_201_CREATED) + + def test_has_put_permissions(self): + request = factory.put('/1', {'text': 'foobar'}, format='json', + HTTP_AUTHORIZATION=self.permitted_credentials) + response = instance_view(request, pk='1') + self.assertEqual(response.status_code, status.HTTP_200_OK) + + def test_has_delete_permissions(self): + request = factory.delete('/1', HTTP_AUTHORIZATION=self.permitted_credentials) + response = instance_view(request, pk=1) + self.assertEqual(response.status_code, status.HTTP_204_NO_CONTENT) + + def test_does_not_have_create_permissions(self): + request = factory.post('/', {'text': 'foobar'}, format='json', + HTTP_AUTHORIZATION=self.disallowed_credentials) + response = root_view(request, pk=1) + self.assertEqual(response.status_code, status.HTTP_403_FORBIDDEN) + + def test_does_not_have_put_permissions(self): + request = factory.put('/1', {'text': 'foobar'}, format='json', + HTTP_AUTHORIZATION=self.disallowed_credentials) + response = instance_view(request, pk='1') + self.assertEqual(response.status_code, status.HTTP_403_FORBIDDEN) + + def test_does_not_have_delete_permissions(self): + request = factory.delete('/1', HTTP_AUTHORIZATION=self.disallowed_credentials) + response = instance_view(request, pk=1) + self.assertEqual(response.status_code, status.HTTP_403_FORBIDDEN) + + def test_has_put_as_create_permissions(self): + # User only has update permissions - should be able to update an entity. + request = factory.put('/1', {'text': 'foobar'}, format='json', + HTTP_AUTHORIZATION=self.updateonly_credentials) + response = instance_view(request, pk='1') + self.assertEqual(response.status_code, status.HTTP_200_OK) + + # But if PUTing to a new entity, permission should be denied. + request = factory.put('/2', {'text': 'foobar'}, format='json', + HTTP_AUTHORIZATION=self.updateonly_credentials) + response = instance_view(request, pk='2') + self.assertEqual(response.status_code, status.HTTP_403_FORBIDDEN) + + def test_options_permitted(self): + request = factory.options('/', + HTTP_AUTHORIZATION=self.permitted_credentials) + response = root_view(request, pk='1') + self.assertEqual(response.status_code, status.HTTP_200_OK) + self.assertIn('actions', response.data) + self.assertEqual(list(response.data['actions'].keys()), ['POST']) + + request = factory.options('/1', + HTTP_AUTHORIZATION=self.permitted_credentials) + response = instance_view(request, pk='1') + self.assertEqual(response.status_code, status.HTTP_200_OK) + self.assertIn('actions', response.data) + self.assertEqual(list(response.data['actions'].keys()), ['PUT']) + + def test_options_disallowed(self): + request = factory.options('/', + HTTP_AUTHORIZATION=self.disallowed_credentials) + response = root_view(request, pk='1') + self.assertEqual(response.status_code, status.HTTP_200_OK) + self.assertNotIn('actions', response.data) + + request = factory.options('/1', + HTTP_AUTHORIZATION=self.disallowed_credentials) + response = instance_view(request, pk='1') + self.assertEqual(response.status_code, status.HTTP_200_OK) + self.assertNotIn('actions', response.data) + + def test_options_updateonly(self): + request = factory.options('/', + HTTP_AUTHORIZATION=self.updateonly_credentials) + response = root_view(request, pk='1') + self.assertEqual(response.status_code, status.HTTP_200_OK) + self.assertNotIn('actions', response.data) + + request = factory.options('/1', + HTTP_AUTHORIZATION=self.updateonly_credentials) + response = instance_view(request, pk='1') + self.assertEqual(response.status_code, status.HTTP_200_OK) + self.assertIn('actions', response.data) + self.assertEqual(list(response.data['actions'].keys()), ['PUT']) + + +class BasicPermModel(models.Model): + text = models.CharField(max_length=100) + + class Meta: + app_label = 'tests' + permissions = ( + ('view_basicpermmodel', 'Can view basic perm model'), + # add, change, delete built in to django + ) + +# Custom object-level permission, that includes 'view' permissions +class ViewObjectPermissions(permissions.DjangoObjectPermissions): + perms_map = { + 'GET': ['%(app_label)s.view_%(model_name)s'], + 'OPTIONS': ['%(app_label)s.view_%(model_name)s'], + 'HEAD': ['%(app_label)s.view_%(model_name)s'], + 'POST': ['%(app_label)s.add_%(model_name)s'], + 'PUT': ['%(app_label)s.change_%(model_name)s'], + 'PATCH': ['%(app_label)s.change_%(model_name)s'], + 'DELETE': ['%(app_label)s.delete_%(model_name)s'], + } + + +class ObjectPermissionInstanceView(generics.RetrieveUpdateDestroyAPIView): + model = BasicPermModel + authentication_classes = [authentication.BasicAuthentication] + permission_classes = [ViewObjectPermissions] + +object_permissions_view = ObjectPermissionInstanceView.as_view() + + +class ObjectPermissionListView(generics.ListAPIView): + model = BasicPermModel + authentication_classes = [authentication.BasicAuthentication] + permission_classes = [ViewObjectPermissions] + +object_permissions_list_view = ObjectPermissionListView.as_view() + + +@unittest.skipUnless(guardian, 'django-guardian not installed') +class ObjectPermissionsIntegrationTests(TestCase): + """ + Integration tests for the object level permissions API. + """ + def setUp(self): + from guardian.shortcuts import assign_perm + + # create users + create = User.objects.create_user + users = { + 'fullaccess': create('fullaccess', 'fullaccess@example.com', 'password'), + 'readonly': create('readonly', 'readonly@example.com', 'password'), + 'writeonly': create('writeonly', 'writeonly@example.com', 'password'), + 'deleteonly': create('deleteonly', 'deleteonly@example.com', 'password'), + } + + # give everyone model level permissions, as we are not testing those + everyone = Group.objects.create(name='everyone') + model_name = get_model_name(BasicPermModel) + app_label = BasicPermModel._meta.app_label + f = '{0}_{1}'.format + perms = { + 'view': f('view', model_name), + 'change': f('change', model_name), + 'delete': f('delete', model_name) + } + for perm in perms.values(): + perm = '{0}.{1}'.format(app_label, perm) + assign_perm(perm, everyone) + everyone.user_set.add(*users.values()) + + # appropriate object level permissions + readers = Group.objects.create(name='readers') + writers = Group.objects.create(name='writers') + deleters = Group.objects.create(name='deleters') + + model = BasicPermModel.objects.create(text='foo') + + assign_perm(perms['view'], readers, model) + assign_perm(perms['change'], writers, model) + assign_perm(perms['delete'], deleters, model) + + readers.user_set.add(users['fullaccess'], users['readonly']) + writers.user_set.add(users['fullaccess'], users['writeonly']) + deleters.user_set.add(users['fullaccess'], users['deleteonly']) + + self.credentials = {} + for user in users.values(): + self.credentials[user.username] = basic_auth_header(user.username, 'password') + + # Delete + def test_can_delete_permissions(self): + request = factory.delete('/1', HTTP_AUTHORIZATION=self.credentials['deleteonly']) + response = object_permissions_view(request, pk='1') + self.assertEqual(response.status_code, status.HTTP_204_NO_CONTENT) + + def test_cannot_delete_permissions(self): + request = factory.delete('/1', HTTP_AUTHORIZATION=self.credentials['readonly']) + response = object_permissions_view(request, pk='1') + self.assertEqual(response.status_code, status.HTTP_403_FORBIDDEN) + + # Update + def test_can_update_permissions(self): + request = factory.patch('/1', {'text': 'foobar'}, format='json', + HTTP_AUTHORIZATION=self.credentials['writeonly']) + response = object_permissions_view(request, pk='1') + self.assertEqual(response.status_code, status.HTTP_200_OK) + self.assertEqual(response.data.get('text'), 'foobar') + + def test_cannot_update_permissions(self): + request = factory.patch('/1', {'text': 'foobar'}, format='json', + HTTP_AUTHORIZATION=self.credentials['deleteonly']) + response = object_permissions_view(request, pk='1') + self.assertEqual(response.status_code, status.HTTP_404_NOT_FOUND) + + def test_cannot_update_permissions_non_existing(self): + request = factory.patch('/999', {'text': 'foobar'}, format='json', + HTTP_AUTHORIZATION=self.credentials['deleteonly']) + response = object_permissions_view(request, pk='999') + self.assertEqual(response.status_code, status.HTTP_404_NOT_FOUND) + + # Read + def test_can_read_permissions(self): + request = factory.get('/1', HTTP_AUTHORIZATION=self.credentials['readonly']) + response = object_permissions_view(request, pk='1') + self.assertEqual(response.status_code, status.HTTP_200_OK) + + def test_cannot_read_permissions(self): + request = factory.get('/1', HTTP_AUTHORIZATION=self.credentials['writeonly']) + response = object_permissions_view(request, pk='1') + self.assertEqual(response.status_code, status.HTTP_404_NOT_FOUND) + + # Read list + def test_can_read_list_permissions(self): + request = factory.get('/', HTTP_AUTHORIZATION=self.credentials['readonly']) + object_permissions_list_view.cls.filter_backends = (DjangoObjectPermissionsFilter,) + response = object_permissions_list_view(request) + self.assertEqual(response.status_code, status.HTTP_200_OK) + self.assertEqual(response.data[0].get('id'), 1) + + def test_cannot_read_list_permissions(self): + request = factory.get('/', HTTP_AUTHORIZATION=self.credentials['writeonly']) + object_permissions_list_view.cls.filter_backends = (DjangoObjectPermissionsFilter,) + response = object_permissions_list_view(request) + self.assertEqual(response.status_code, status.HTTP_200_OK) + self.assertListEqual(response.data, []) |