takahe/users/decorators.py
2022-11-05 14:17:27 -06:00

39 lines
1.4 KiB
Python

from functools import wraps
from django.contrib.auth.views import redirect_to_login
from django.http import HttpResponseRedirect
from users.models import Identity
def identity_required(function):
"""
Decorator for views that ensures an active identity is selected.
"""
@wraps(function)
def inner(request, *args, **kwargs):
# They do have to be logged in
if not request.user.is_authenticated:
return redirect_to_login(next=request.get_full_path())
# Try to retrieve their active identity
identity_id = request.session.get("identity_id")
if not identity_id:
identity = None
else:
try:
identity = Identity.objects.get(id=identity_id)
except Identity.DoesNotExist:
identity = None
# If there's no active one, try to auto-select one
if identity is None:
possible_identities = list(request.user.identities.all())
if len(possible_identities) != 1:
# OK, send them to the identity selection page to select/create one
return HttpResponseRedirect("/identity/select/")
identity = possible_identities[0]
request.identity = identity
request.session["identity_id"] = identity.pk
return function(request, *args, **kwargs)
return inner