middleware.py 文件源码

def clean_id(self, request):
        """
        Allows the backend to clean the user id, if the backend defines a
        clean_id method.
        """
        backend_str = request.session[auth.BACKEND_SESSION_KEY]
        backend = load_backend(backend_str)
        try:
            user_id = backend.clean_id(request)
        except AttributeError:  # Backend has no clean_id method.
            pass
        return user_id