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225 lines
9.1 KiB
Python
225 lines
9.1 KiB
Python
from django.http import HttpResponse
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from django.test import RequestFactory, SimpleTestCase
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from django.test.utils import override_settings
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class SecurityMiddlewareTest(SimpleTestCase):
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@property
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def middleware(self):
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from django.middleware.security import SecurityMiddleware
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return SecurityMiddleware()
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@property
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def secure_request_kwargs(self):
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return {"wsgi.url_scheme": "https"}
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def response(self, *args, headers=None, **kwargs):
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response = HttpResponse(*args, **kwargs)
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if headers:
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for k, v in headers.items():
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response[k] = v
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return response
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def process_response(self, *args, secure=False, request=None, **kwargs):
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request_kwargs = {}
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if secure:
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request_kwargs.update(self.secure_request_kwargs)
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if request is None:
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request = self.request.get("/some/url", **request_kwargs)
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ret = self.middleware.process_request(request)
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if ret:
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return ret
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return self.middleware.process_response(
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request, self.response(*args, **kwargs))
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request = RequestFactory()
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def process_request(self, method, *args, secure=False, **kwargs):
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if secure:
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kwargs.update(self.secure_request_kwargs)
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req = getattr(self.request, method.lower())(*args, **kwargs)
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return self.middleware.process_request(req)
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@override_settings(SECURE_HSTS_SECONDS=3600)
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def test_sts_on(self):
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"""
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With SECURE_HSTS_SECONDS=3600, the middleware adds
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"Strict-Transport-Security: max-age=3600" to the response.
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"""
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self.assertEqual(
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self.process_response(secure=True)["Strict-Transport-Security"],
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'max-age=3600',
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)
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@override_settings(SECURE_HSTS_SECONDS=3600)
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def test_sts_already_present(self):
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"""
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The middleware will not override a "Strict-Transport-Security" header
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already present in the response.
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"""
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response = self.process_response(
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secure=True,
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headers={"Strict-Transport-Security": "max-age=7200"})
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self.assertEqual(response["Strict-Transport-Security"], "max-age=7200")
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@override_settings(SECURE_HSTS_SECONDS=3600)
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def test_sts_only_if_secure(self):
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"""
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The "Strict-Transport-Security" header is not added to responses going
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over an insecure connection.
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"""
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self.assertNotIn("Strict-Transport-Security", self.process_response(secure=False))
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@override_settings(SECURE_HSTS_SECONDS=0)
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def test_sts_off(self):
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"""
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With SECURE_HSTS_SECONDS=0, the middleware does not add a
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"Strict-Transport-Security" header to the response.
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"""
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self.assertNotIn("Strict-Transport-Security", self.process_response(secure=True))
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@override_settings(SECURE_HSTS_SECONDS=600, SECURE_HSTS_INCLUDE_SUBDOMAINS=True)
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def test_sts_include_subdomains(self):
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"""
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With SECURE_HSTS_SECONDS non-zero and SECURE_HSTS_INCLUDE_SUBDOMAINS
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True, the middleware adds a "Strict-Transport-Security" header with the
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"includeSubDomains" directive to the response.
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"""
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response = self.process_response(secure=True)
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self.assertEqual(response["Strict-Transport-Security"], "max-age=600; includeSubDomains")
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@override_settings(SECURE_HSTS_SECONDS=600, SECURE_HSTS_INCLUDE_SUBDOMAINS=False)
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def test_sts_no_include_subdomains(self):
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"""
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With SECURE_HSTS_SECONDS non-zero and SECURE_HSTS_INCLUDE_SUBDOMAINS
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False, the middleware adds a "Strict-Transport-Security" header without
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the "includeSubDomains" directive to the response.
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"""
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response = self.process_response(secure=True)
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self.assertEqual(response["Strict-Transport-Security"], "max-age=600")
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@override_settings(SECURE_HSTS_SECONDS=10886400, SECURE_HSTS_PRELOAD=True)
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def test_sts_preload(self):
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"""
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With SECURE_HSTS_SECONDS non-zero and SECURE_HSTS_PRELOAD True, the
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middleware adds a "Strict-Transport-Security" header with the "preload"
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directive to the response.
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"""
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response = self.process_response(secure=True)
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self.assertEqual(response["Strict-Transport-Security"], "max-age=10886400; preload")
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@override_settings(SECURE_HSTS_SECONDS=10886400, SECURE_HSTS_INCLUDE_SUBDOMAINS=True, SECURE_HSTS_PRELOAD=True)
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def test_sts_subdomains_and_preload(self):
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"""
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With SECURE_HSTS_SECONDS non-zero, SECURE_HSTS_INCLUDE_SUBDOMAINS and
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SECURE_HSTS_PRELOAD True, the middleware adds a "Strict-Transport-Security"
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header containing both the "includeSubDomains" and "preload" directives
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to the response.
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"""
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response = self.process_response(secure=True)
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self.assertEqual(response["Strict-Transport-Security"], "max-age=10886400; includeSubDomains; preload")
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@override_settings(SECURE_HSTS_SECONDS=10886400, SECURE_HSTS_PRELOAD=False)
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def test_sts_no_preload(self):
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"""
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With SECURE_HSTS_SECONDS non-zero and SECURE_HSTS_PRELOAD
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False, the middleware adds a "Strict-Transport-Security" header without
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the "preload" directive to the response.
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"""
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response = self.process_response(secure=True)
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self.assertEqual(response["Strict-Transport-Security"], "max-age=10886400")
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@override_settings(SECURE_CONTENT_TYPE_NOSNIFF=True)
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def test_content_type_on(self):
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"""
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With SECURE_CONTENT_TYPE_NOSNIFF set to True, the middleware adds
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"X-Content-Type-Options: nosniff" header to the response.
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"""
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self.assertEqual(self.process_response()["X-Content-Type-Options"], "nosniff")
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@override_settings(SECURE_CONTENT_TYPE_NOSNIFF=True)
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def test_content_type_already_present(self):
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"""
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The middleware will not override an "X-Content-Type-Options" header
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already present in the response.
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"""
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response = self.process_response(secure=True, headers={"X-Content-Type-Options": "foo"})
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self.assertEqual(response["X-Content-Type-Options"], "foo")
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@override_settings(SECURE_CONTENT_TYPE_NOSNIFF=False)
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def test_content_type_off(self):
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"""
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With SECURE_CONTENT_TYPE_NOSNIFF False, the middleware does not add an
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"X-Content-Type-Options" header to the response.
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"""
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self.assertNotIn("X-Content-Type-Options", self.process_response())
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@override_settings(SECURE_BROWSER_XSS_FILTER=True)
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def test_xss_filter_on(self):
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"""
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With SECURE_BROWSER_XSS_FILTER set to True, the middleware adds
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"s-xss-protection: 1; mode=block" header to the response.
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"""
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self.assertEqual(self.process_response()["X-XSS-Protection"], "1; mode=block")
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@override_settings(SECURE_BROWSER_XSS_FILTER=True)
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def test_xss_filter_already_present(self):
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"""
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The middleware will not override an "X-XSS-Protection" header
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already present in the response.
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"""
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response = self.process_response(secure=True, headers={"X-XSS-Protection": "foo"})
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self.assertEqual(response["X-XSS-Protection"], "foo")
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@override_settings(SECURE_BROWSER_XSS_FILTER=False)
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def test_xss_filter_off(self):
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"""
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With SECURE_BROWSER_XSS_FILTER set to False, the middleware does not
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add an "X-XSS-Protection" header to the response.
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"""
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self.assertNotIn("X-XSS-Protection", self.process_response())
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@override_settings(SECURE_SSL_REDIRECT=True)
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def test_ssl_redirect_on(self):
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"""
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With SECURE_SSL_REDIRECT True, the middleware redirects any non-secure
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requests to the https:// version of the same URL.
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"""
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ret = self.process_request("get", "/some/url?query=string")
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self.assertEqual(ret.status_code, 301)
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self.assertEqual(ret["Location"], "https://testserver/some/url?query=string")
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@override_settings(SECURE_SSL_REDIRECT=True)
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def test_no_redirect_ssl(self):
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"""
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The middleware does not redirect secure requests.
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"""
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ret = self.process_request("get", "/some/url", secure=True)
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self.assertIsNone(ret)
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@override_settings(SECURE_SSL_REDIRECT=True, SECURE_REDIRECT_EXEMPT=["^insecure/"])
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def test_redirect_exempt(self):
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"""
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The middleware does not redirect requests with URL path matching an
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exempt pattern.
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"""
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ret = self.process_request("get", "/insecure/page")
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self.assertIsNone(ret)
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@override_settings(SECURE_SSL_REDIRECT=True, SECURE_SSL_HOST="secure.example.com")
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def test_redirect_ssl_host(self):
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"""
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The middleware redirects to SECURE_SSL_HOST if given.
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"""
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ret = self.process_request("get", "/some/url")
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self.assertEqual(ret.status_code, 301)
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self.assertEqual(ret["Location"], "https://secure.example.com/some/url")
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@override_settings(SECURE_SSL_REDIRECT=False)
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def test_ssl_redirect_off(self):
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"""
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With SECURE_SSL_REDIRECT False, the middleware does not redirect.
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"""
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ret = self.process_request("get", "/some/url")
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self.assertIsNone(ret)
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