from django.http import HttpResponseRedirect
class SimpleMiddleware:
    def __init__(self, get_response):
        self.get_response = get_response
    def __call__(self, request):
        if not request.path in ('/admin/', '/login/'):
            if not request.user.is_authenticated:
                return HttpResponseRedirect('/login/')
        response = self.get_response(request)
        return response
