prompt: We are currently solving the following issue within our repository. Here is the issue text:
  --- BEGIN ISSUE ---
  Flatpages and Redirects broken when using ASGI
  Examples:
  
  - https://grand-challenge.org/about/ (flatpage, exists)
  - https://grand-challenge.org/about (should redirect to https://grand-challenge.org/about/)
  - https://parse2022.grand-challenge.org/Participation (should redirect to https://parse2022.grand-challenge.org/Participation/)
  - https://parse2022.grand-challenge.org/gfsdfgdfdsg (should redirect to https://parse2022.grand-challenge.org/gfsdfgdfdsg/, which should 404).
  
  Error occurs in the clickjacking middleware:
  
  https://sentry.io/organizations/grand-challenge/issues/3374906811/?project=303639&query=is%3Aignored
  
  --- END ISSUE ---
  
  Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
  --- BEGIN FILES ---
  Path: `app/grandchallenge/core/middleware.py`
  Content:
  ```
  1 from allauth_2fa.middleware import BaseRequire2FAMiddleware
  2 from django.urls import Resolver404, get_resolver
  3 from django.utils.deprecation import MiddlewareMixin
  4 
  5 
  6 class RequireStaffAndSuperuser2FAMiddleware(BaseRequire2FAMiddleware):
  7     def require_2fa(self, request):
  8         # Staff users and superusers are required to have 2FA.
  9         return request.user.is_staff or request.user.is_superuser
  10 
  11 
  12 class TwoFactorMiddleware(MiddlewareMixin):
  13     """
  14     Reset the login flow if another page is loaded halfway through the login.
  15     (I.e. if the user has logged in with a username/password, but not yet
  16     entered their two-factor credentials.) This makes sure a user does not stay
  17     half logged in by mistake.
  18     """
  19 
  20     def __init__(self, get_response):
  21         self.get_response = get_response
  22 
  23     def process_request(self, request):
  24         try:
  25             match = get_resolver(request.urlconf).resolve(request.path)
  26             if (
  27                 match
  28                 and not match.url_name
  29                 or not match.url_name.startswith("two-factor-authenticate")
  30             ):
  31                 try:
  32                     del request.session["allauth_2fa_user_id"]
  33                 except KeyError:
  34                     pass
  35         except Resolver404:
  36             return self.get_response(request)
  37
  ```
  --- END FILES ---
  
  Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.
  
  Here is an example:
  
  ```diff
  diff --git a/examples/server_async.py b/examples/server_async.py
  --- a/examples/server_async.py
  +++ b/examples/server_async.py
  @@ -313,4 +313,4 @@
   
   
   if __name__ == "__main__":
  -    asyncio.run(run_async_server("."), debug=True)
  +    asyncio.run(run_async_server(), debug=True)
  diff --git a/examples/server_sync.py b/examples/server_sync.py
  --- a/examples/server_sync.py
  +++ b/examples/server_sync.py
  @@ -313,5 +313,5 @@
   
   
   if __name__ == "__main__":
  -    server = run_sync_server(".")
  +    server = run_sync_server()
       server.shutdown()
  
  ```
  
golden_diff: diff --git a/app/grandchallenge/core/middleware.py b/app/grandchallenge/core/middleware.py
  --- a/app/grandchallenge/core/middleware.py
  +++ b/app/grandchallenge/core/middleware.py
  @@ -17,9 +17,6 @@
       half logged in by mistake.
       """
   
  -    def __init__(self, get_response):
  -        self.get_response = get_response
  -
       def process_request(self, request):
           try:
               match = get_resolver(request.urlconf).resolve(request.path)
  @@ -33,4 +30,4 @@
                   except KeyError:
                       pass
           except Resolver404:
  -            return self.get_response(request)
  +            pass
  
verification_info: {"golden_diff": "diff --git a/app/grandchallenge/core/middleware.py b/app/grandchallenge/core/middleware.py\n--- a/app/grandchallenge/core/middleware.py\n+++ b/app/grandchallenge/core/middleware.py\n@@ -17,9 +17,6 @@\n     half logged in by mistake.\r\n     \"\"\"\r\n \r\n-    def __init__(self, get_response):\r\n-        self.get_response = get_response\r\n-\r\n     def process_request(self, request):\r\n         try:\r\n             match = get_resolver(request.urlconf).resolve(request.path)\r\n@@ -33,4 +30,4 @@\n                 except KeyError:\r\n                     pass\r\n         except Resolver404:\r\n-            return self.get_response(request)\r\n+            pass\n", "issue": "Flatpages and Redirects broken when using ASGI\nExamples:\r\n\r\n- https://grand-challenge.org/about/ (flatpage, exists)\r\n- https://grand-challenge.org/about (should redirect to https://grand-challenge.org/about/)\r\n- https://parse2022.grand-challenge.org/Participation (should redirect to https://parse2022.grand-challenge.org/Participation/)\r\n- https://parse2022.grand-challenge.org/gfsdfgdfdsg (should redirect to https://parse2022.grand-challenge.org/gfsdfgdfdsg/, which should 404).\r\n\r\nError occurs in the clickjacking middleware:\r\n\r\nhttps://sentry.io/organizations/grand-challenge/issues/3374906811/?project=303639&query=is%3Aignored\n", "before_files": [{"content": "from allauth_2fa.middleware import BaseRequire2FAMiddleware\r\nfrom django.urls import Resolver404, get_resolver\r\nfrom django.utils.deprecation import MiddlewareMixin\r\n\r\n\r\nclass RequireStaffAndSuperuser2FAMiddleware(BaseRequire2FAMiddleware):\r\n    def require_2fa(self, request):\r\n        # Staff users and superusers are required to have 2FA.\r\n        return request.user.is_staff or request.user.is_superuser\r\n\r\n\r\nclass TwoFactorMiddleware(MiddlewareMixin):\r\n    \"\"\"\r\n    Reset the login flow if another page is loaded halfway through the login.\r\n    (I.e. if the user has logged in with a username/password, but not yet\r\n    entered their two-factor credentials.) This makes sure a user does not stay\r\n    half logged in by mistake.\r\n    \"\"\"\r\n\r\n    def __init__(self, get_response):\r\n        self.get_response = get_response\r\n\r\n    def process_request(self, request):\r\n        try:\r\n            match = get_resolver(request.urlconf).resolve(request.path)\r\n            if (\r\n                match\r\n                and not match.url_name\r\n                or not match.url_name.startswith(\"two-factor-authenticate\")\r\n            ):\r\n                try:\r\n                    del request.session[\"allauth_2fa_user_id\"]\r\n                except KeyError:\r\n                    pass\r\n        except Resolver404:\r\n            return self.get_response(request)\r\n", "path": "app/grandchallenge/core/middleware.py"}], "after_files": [{"content": "from allauth_2fa.middleware import BaseRequire2FAMiddleware\r\nfrom django.urls import Resolver404, get_resolver\r\nfrom django.utils.deprecation import MiddlewareMixin\r\n\r\n\r\nclass RequireStaffAndSuperuser2FAMiddleware(BaseRequire2FAMiddleware):\r\n    def require_2fa(self, request):\r\n        # Staff users and superusers are required to have 2FA.\r\n        return request.user.is_staff or request.user.is_superuser\r\n\r\n\r\nclass TwoFactorMiddleware(MiddlewareMixin):\r\n    \"\"\"\r\n    Reset the login flow if another page is loaded halfway through the login.\r\n    (I.e. if the user has logged in with a username/password, but not yet\r\n    entered their two-factor credentials.) This makes sure a user does not stay\r\n    half logged in by mistake.\r\n    \"\"\"\r\n\r\n    def process_request(self, request):\r\n        try:\r\n            match = get_resolver(request.urlconf).resolve(request.path)\r\n            if (\r\n                match\r\n                and not match.url_name\r\n                or not match.url_name.startswith(\"two-factor-authenticate\")\r\n            ):\r\n                try:\r\n                    del request.session[\"allauth_2fa_user_id\"]\r\n                except KeyError:\r\n                    pass\r\n        except Resolver404:\r\n            pass\r\n", "path": "app/grandchallenge/core/middleware.py"}]}