login_required.py

# -*- coding: utf-8 -*-
from django.http import HttpResponseRedirect
from django.conf import settings


class LoginRequired(object):
    def __init__(self):
        self.login_url = getattr(settings, 'LOGIN_URL', '/accounts/login/')

    def process_request(self, request):
        """
        Ensure that user is authenticated when accessing a Django-CMS page
        """
        if getattr(request, 'current_page', None) and not request.user.is_authenticated():
            return HttpResponseRedirect("%s?next=%s" % (self.login_url, request.path))