Login Required middleware as per the upcoming Django implementation

decorators.py

from functools import wraps


def login_not_required(view_func):
    def wrapped(*args, **kwargs):
        return view_func(*args, **kwargs)
    wrapped.login_required = False
    return wraps(view_func)(wrapped)

middleware.py

from django.contrib.auth.middleware import AuthenticationMiddleware
from django.contrib.auth.views import redirect_to_login


class LoginRequiredMiddleware(AuthenticationMiddleware):

    def process_view(self, request, view_func, view_args, view_kwargs):

        if request.user.is_authenticated:
            return None

        view_class = getattr(view_func, 'view_class', None)
        if view_class and not getattr(view_func, 'login_required', True):
            return None

        if not getattr(view_func, 'login_required', True):
            return None
        
        return redirect_to_login(request.get_full_path())