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authentik/passbook/core/signals.py

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"""passbook core signals"""
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from logging import getLogger
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from django.core.cache import cache
from django.core.signals import Signal
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from django.db.models.signals import post_save
from django.dispatch import receiver
from passbook.core.exceptions import PasswordPolicyInvalid
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LOGGER = getLogger(__name__)
user_signed_up = Signal(providing_args=['request', 'user'])
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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.policy.engine import PolicyEngine
setattr(sender, '__password__', password)
_all_factors = PasswordFactor.objects.filter(enabled=True).order_by('order')
for factor in _all_factors:
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policy_engine = PolicyEngine(factor.password_policies.all().select_subclasses())
policy_engine.for_user(sender).build()
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passing, messages = policy_engine.result
if not passing:
raise PasswordPolicyInvalid(*messages)
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@receiver(post_save)
# pylint: disable=unused-argument
def invalidate_policy_cache(sender, instance, **kwargs):
"""Invalidate Policy cache when policy is updated"""
from passbook.core.models import Policy
if isinstance(instance, Policy):
LOGGER.debug("Invalidating cache for %s", instance.pk)
keys = cache.keys("%s#*" % instance.pk)
cache.delete_many(keys)
LOGGER.debug("Deleted %d keys", len(keys))