"""passbook core signals"""
from django.core.signals import Signal
from django.dispatch import receiver
from passbook.core.exceptions import PasswordPolicyInvalid
user_signed_up = Signal(providing_args=['request', 'user'])
invitation_created = Signal(providing_args=['request', 'invitation'])
invitation_used = Signal(providing_args=['request', 'invitation', 'user'])
password_changed = Signal(providing_args=['user', 'password'])
@receiver(password_changed)
# pylint: disable=unused-argument
def password_policy_checker(sender, password, **kwargs):
"""Run password through all password policies which are applied to the user"""
from passbook.core.models import PasswordFactor
from passbook.core.policies import PolicyEngine
setattr(sender, '__password__', password)
_all_factors = PasswordFactor.objects.filter(enabled=True).order_by('order')
for factor in _all_factors:
if factor.passes(sender):
policy_engine = PolicyEngine(factor.password_policies.all().select_subclasses())
policy_engine.for_user(sender)
passing, messages = policy_engine.result
if not passing:
raise PasswordPolicyInvalid(*messages)
