from django.contrib import messages from django.contrib.auth.signals import user_logged_in from django.core.urlresolvers import reverse from django.dispatch import receiver from django.utils.safestring import mark_safe from django.utils.translation import ugettext as _ from .utils import get_kfet_generic_user @receiver(user_logged_in) def suggest_auth_generic(sender, request, user, **kwargs): """ Suggest logged in user to continue as the kfet generic user. Message is only added if the following conditions are met: - the next page (where user is going to be redirected due to successful authentication) is related to kfet, i.e. 'k-fet' is in its url. - logged in user is a kfet staff member (except the generic user). """ # Filter against the next page. if not (hasattr(request, "GET") and "next" in request.GET): return next_page = request.GET["next"] generic_url = reverse("kfet.login.generic") if not ("k-fet" in next_page and not next_page.startswith(generic_url)): return # Filter against the logged in user. if not (user.has_perm("kfet.is_team") and user != get_kfet_generic_user()): return # Seems legit to add message. text = _("K-Fêt — Ouvrir une session partagée ?") messages.info( request, mark_safe( '{}'.format( generic_url, text ) ), )