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from asgiref.sync import iscoroutinefunction
from django.conf import settings
from django.http import HttpRequest, HttpResponse
from django.test import SimpleTestCase
from django.views.decorators.csrf import (
csrf_exempt,
csrf_protect,
ensure_csrf_cookie,
requires_csrf_token,
)
CSRF_TOKEN = "1bcdefghij2bcdefghij3bcdefghij4bcdefghij5bcdefghij6bcdefghijABCD"
class CsrfTestMixin:
def get_request(self, token=CSRF_TOKEN):
request = HttpRequest()
request.method = "POST"
if token:
request.POST["csrfmiddlewaretoken"] = token
request.COOKIES[settings.CSRF_COOKIE_NAME] = token
return request
class CsrfProtectTests(CsrfTestMixin, SimpleTestCase):
def test_wrapped_sync_function_is_not_coroutine_function(self):
def sync_view(request):
return HttpResponse()
wrapped_view = csrf_protect(sync_view)
self.assertIs(iscoroutinefunction(wrapped_view), False)
def test_wrapped_async_function_is_coroutine_function(self):
async def async_view(request):
return HttpResponse()
wrapped_view = csrf_protect(async_view)
self.assertIs(iscoroutinefunction(wrapped_view), True)
def test_csrf_protect_decorator(self):
@csrf_protect
def sync_view(request):
return HttpResponse()
request = self.get_request()
response = sync_view(request)
self.assertEqual(response.status_code, 200)
self.assertIs(request.csrf_processing_done, True)
with self.assertLogs("django.security.csrf", "WARNING"):
request = self.get_request(token=None)
response = sync_view(request)
self.assertEqual(response.status_code, 403)
async def test_csrf_protect_decorator_async_view(self):
@csrf_protect
async def async_view(request):
return HttpResponse()
request = self.get_request()
response = await async_view(request)
self.assertEqual(response.status_code, 200)
self.assertIs(request.csrf_processing_done, True)
with self.assertLogs("django.security.csrf", "WARNING"):
request = self.get_request(token=None)
response = await async_view(request)
self.assertEqual(response.status_code, 403)
class RequiresCsrfTokenTests(CsrfTestMixin, SimpleTestCase):
def test_wrapped_sync_function_is_not_coroutine_function(self):
def sync_view(request):
return HttpResponse()
wrapped_view = requires_csrf_token(sync_view)
self.assertIs(iscoroutinefunction(wrapped_view), False)
def test_wrapped_async_function_is_coroutine_function(self):
async def async_view(request):
return HttpResponse()
wrapped_view = requires_csrf_token(async_view)
self.assertIs(iscoroutinefunction(wrapped_view), True)
def test_requires_csrf_token_decorator(self):
@requires_csrf_token
def sync_view(request):
return HttpResponse()
request = self.get_request()
response = sync_view(request)
self.assertEqual(response.status_code, 200)
self.assertIs(request.csrf_processing_done, True)
with self.assertNoLogs("django.security.csrf", "WARNING"):
request = self.get_request(token=None)
response = sync_view(request)
self.assertEqual(response.status_code, 200)
async def test_requires_csrf_token_decorator_async_view(self):
@requires_csrf_token
async def async_view(request):
return HttpResponse()
request = self.get_request()
response = await async_view(request)
self.assertEqual(response.status_code, 200)
self.assertIs(request.csrf_processing_done, True)
with self.assertNoLogs("django.security.csrf", "WARNING"):
request = self.get_request(token=None)
response = await async_view(request)
self.assertEqual(response.status_code, 200)
class EnsureCsrfCookieTests(CsrfTestMixin, SimpleTestCase):
def test_wrapped_sync_function_is_not_coroutine_function(self):
def sync_view(request):
return HttpResponse()
wrapped_view = ensure_csrf_cookie(sync_view)
self.assertIs(iscoroutinefunction(wrapped_view), False)
def test_wrapped_async_function_is_coroutine_function(self):
async def async_view(request):
return HttpResponse()
wrapped_view = ensure_csrf_cookie(async_view)
self.assertIs(iscoroutinefunction(wrapped_view), True)
def test_ensure_csrf_cookie_decorator(self):
@ensure_csrf_cookie
def sync_view(request):
return HttpResponse()
request = self.get_request()
response = sync_view(request)
self.assertEqual(response.status_code, 200)
self.assertIs(request.csrf_processing_done, True)
with self.assertNoLogs("django.security.csrf", "WARNING"):
request = self.get_request(token=None)
response = sync_view(request)
self.assertEqual(response.status_code, 200)
async def test_ensure_csrf_cookie_decorator_async_view(self):
@ensure_csrf_cookie
async def async_view(request):
return HttpResponse()
request = self.get_request()
response = await async_view(request)
self.assertEqual(response.status_code, 200)
self.assertIs(request.csrf_processing_done, True)
with self.assertNoLogs("django.security.csrf", "WARNING"):
request = self.get_request(token=None)
response = await async_view(request)
self.assertEqual(response.status_code, 200)
class CsrfExemptTests(SimpleTestCase):
def test_wrapped_sync_function_is_not_coroutine_function(self):
def sync_view(request):
return HttpResponse()
wrapped_view = csrf_exempt(sync_view)
self.assertIs(iscoroutinefunction(wrapped_view), False)
def test_wrapped_async_function_is_coroutine_function(self):
async def async_view(request):
return HttpResponse()
wrapped_view = csrf_exempt(async_view)
self.assertIs(iscoroutinefunction(wrapped_view), True)
def test_csrf_exempt_decorator(self):
@csrf_exempt
def sync_view(request):
return HttpResponse()
self.assertIs(sync_view.csrf_exempt, True)
self.assertIsInstance(sync_view(HttpRequest()), HttpResponse)
async def test_csrf_exempt_decorator_async_view(self):
@csrf_exempt
async def async_view(request):
return HttpResponse()
self.assertIs(async_view.csrf_exempt, True)
self.assertIsInstance(await async_view(HttpRequest()), HttpResponse)
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