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authentik/authentik/policies/signals.py

38 lines
1.3 KiB
Python

"""authentik policy signals"""
from django.core.cache import cache
from django.db.models.signals import post_save
from django.dispatch import receiver
from structlog.stdlib import get_logger
from authentik.core.api.applications import user_app_cache_key
from authentik.policies.engine import GAUGE_POLICIES_CACHED
from authentik.root.monitoring import monitoring_set
LOGGER = get_logger()
@receiver(monitoring_set)
# pylint: disable=unused-argument
def monitoring_set_policies(sender, **kwargs):
"""set policy gauges"""
GAUGE_POLICIES_CACHED.set(len(cache.keys("policy_*") or []))
@receiver(post_save)
# pylint: disable=unused-argument
def invalidate_policy_cache(sender, instance, **_):
"""Invalidate Policy cache when policy is updated"""
from authentik.policies.models import Policy, PolicyBinding
if isinstance(instance, Policy):
total = 0
for binding in PolicyBinding.objects.filter(policy=instance):
prefix = f"policy_{binding.policy_binding_uuid.hex}_{binding.policy.pk.hex}*"
keys = cache.keys(prefix)
total += len(keys)
cache.delete_many(keys)
LOGGER.debug("Invalidating policy cache", policy=instance, keys=total)
# Also delete user application cache
keys = cache.keys(user_app_cache_key("*")) or []
cache.delete_many(keys)