*(minor): small refactor

passbook/core/signals.py

@@ -5,8 +5,6 @@ from django.db.models.signals import post_save
 from django.dispatch import receiver
 from structlog import get_logger
 
-from passbook.core.exceptions import PasswordPolicyInvalid
-
 LOGGER = get_logger()
 
 user_signed_up = Signal(providing_args=['request', 'user'])
@@ -14,24 +12,9 @@ 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:
-        policy_engine = PolicyEngine(factor.password_policies.all().select_subclasses())
-        policy_engine.for_user(sender).build()
-        passing, messages = policy_engine.result
-        if not passing:
-            raise PasswordPolicyInvalid(*messages)
-
 @receiver(post_save)
 # pylint: disable=unused-argument
-def invalidate_policy_cache(sender, instance, **kwargs):
+def invalidate_policy_cache(sender, instance, **_):
     """Invalidate Policy cache when policy is updated"""
     from passbook.core.models import Policy
     if isinstance(instance, Policy):