2008-12-03 06:40:00 +08:00
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# -*- coding: utf-8 -*-
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from django.test import TestCase
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2008-12-03 07:00:06 +08:00
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from django.http import HttpRequest, HttpResponse, HttpResponseForbidden
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2008-12-03 08:34:18 +08:00
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from django.contrib.csrf.middleware import CsrfMiddleware, _make_token, csrf_exempt
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2008-12-03 06:40:00 +08:00
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from django.conf import settings
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2008-12-03 08:31:31 +08:00
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2008-12-03 08:34:18 +08:00
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def post_form_response():
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resp = HttpResponse(content="""
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<html><body><form method="POST"><input type="text" /></form></body></html>
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""", mimetype="text/html")
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return resp
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def test_view(request):
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return post_form_response()
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2008-12-03 06:40:00 +08:00
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class CsrfMiddlewareTest(TestCase):
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_session_id = "1"
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2008-12-03 07:00:06 +08:00
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def _get_GET_no_session_request(self):
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2008-12-03 06:40:00 +08:00
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return HttpRequest()
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2008-12-03 07:00:06 +08:00
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def _get_GET_session_request(self):
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req = self._get_GET_no_session_request()
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2008-12-03 06:40:00 +08:00
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req.COOKIES[settings.SESSION_COOKIE_NAME] = self._session_id
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return req
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2008-12-03 07:00:06 +08:00
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def _get_POST_session_request(self):
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req = self._get_GET_session_request()
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req.method = "POST"
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return req
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def _get_POST_no_session_request(self):
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req = self._get_GET_no_session_request()
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req.method = "POST"
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return req
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def _get_POST_session_request_with_token(self):
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req = self._get_POST_session_request()
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req.POST['csrfmiddlewaretoken'] = _make_token(self._session_id)
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return req
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2008-12-03 06:40:00 +08:00
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def _get_post_form_response(self):
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2008-12-03 08:34:18 +08:00
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return post_form_response()
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2008-12-03 06:40:00 +08:00
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def _get_new_session_response(self):
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resp = self._get_post_form_response()
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resp.cookies[settings.SESSION_COOKIE_NAME] = self._session_id
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return resp
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def _check_token_present(self, response):
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self.assertContains(response, "name='csrfmiddlewaretoken' value='%s'" % _make_token(self._session_id))
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2008-12-03 08:31:31 +08:00
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def get_view(self):
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return test_view
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2008-12-03 08:31:31 +08:00
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2008-12-03 07:00:06 +08:00
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# Check the post processing
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def test_process_response_no_session(self):
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"""
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Check the the post-processor does nothing if no session active
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"""
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2008-12-03 07:00:06 +08:00
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req = self._get_GET_no_session_request()
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2008-12-03 06:40:00 +08:00
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resp = self._get_post_form_response()
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2009-02-08 03:32:37 +08:00
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resp_content = resp.content # needed because process_response modifies resp
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2008-12-03 06:40:00 +08:00
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resp2 = CsrfMiddleware().process_response(req, resp)
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self.assertEquals(resp_content, resp2.content)
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def test_process_response_existing_session(self):
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"""
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Check that the token is inserted if there is an existing session
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"""
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2008-12-03 07:00:06 +08:00
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req = self._get_GET_session_request()
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2008-12-03 06:40:00 +08:00
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resp = self._get_post_form_response()
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2009-02-08 03:32:37 +08:00
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resp_content = resp.content # needed because process_response modifies resp
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2008-12-03 06:40:00 +08:00
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resp2 = CsrfMiddleware().process_response(req, resp)
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self.assertNotEqual(resp_content, resp2.content)
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self._check_token_present(resp2)
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def test_process_response_new_session(self):
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"""
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Check that the token is inserted if there is a new session being started
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"""
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req = self._get_GET_no_session_request() # no session in request
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2008-12-03 06:40:00 +08:00
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resp = self._get_new_session_response() # but new session started
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2009-02-08 03:32:37 +08:00
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resp_content = resp.content # needed because process_response modifies resp
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2008-12-03 06:40:00 +08:00
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resp2 = CsrfMiddleware().process_response(req, resp)
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self.assertNotEqual(resp_content, resp2.content)
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self._check_token_present(resp2)
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2008-12-03 07:00:06 +08:00
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2009-02-08 01:47:02 +08:00
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def test_process_response_exempt_view(self):
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"""
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Check that no post processing is done for an exempt view
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"""
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2009-02-08 01:47:02 +08:00
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req = self._get_POST_session_request()
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resp = csrf_exempt(self.get_view())(req)
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resp_content = resp.content
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resp2 = CsrfMiddleware().process_response(req, resp)
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self.assertEquals(resp_content, resp2.content)
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2008-12-03 07:00:06 +08:00
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# Check the request processing
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def test_process_request_no_session(self):
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"""
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Check that if no session is present, the middleware does nothing.
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to the incoming request.
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"""
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req = self._get_POST_no_session_request()
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req2 = CsrfMiddleware().process_view(req, self.get_view(), (), {})
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self.assertEquals(None, req2)
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def test_process_request_session_no_token(self):
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"""
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Check that if a session is present but no token, we get a 'forbidden'
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"""
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req = self._get_POST_session_request()
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req2 = CsrfMiddleware().process_view(req, self.get_view(), (), {})
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self.assertEquals(HttpResponseForbidden, req2.__class__)
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def test_process_request_session_and_token(self):
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"""
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Check that if a session is present and a token, the middleware lets it through
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"""
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req = self._get_POST_session_request_with_token()
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req2 = CsrfMiddleware().process_view(req, self.get_view(), (), {})
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2008-12-03 07:00:06 +08:00
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self.assertEquals(None, req2)
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2008-12-03 08:34:18 +08:00
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def test_process_request_session_no_token_exempt_view(self):
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"""
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Check that if a session is present and no token, but the csrf_exempt
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decorator has been applied to the view, the middleware lets it through
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"""
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req = self._get_POST_session_request()
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req2 = CsrfMiddleware().process_view(req, csrf_exempt(self.get_view()), (), {})
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self.assertEquals(None, req2)
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def test_ajax_exemption(self):
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"""
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Check that AJAX requests are automatically exempted.
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"""
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req = self._get_POST_session_request()
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req.META['HTTP_X_REQUESTED_WITH'] = 'XMLHttpRequest'
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req2 = CsrfMiddleware().process_view(req, self.get_view(), (), {})
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self.assertEquals(None, req2)
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