django-axes/axes/signals.py
2016-12-06 19:41:04 -05:00

46 lines
1.5 KiB
Python

from django.dispatch import receiver
from django.dispatch import Signal
from django.utils.timezone import now
from django.contrib.auth.signals import user_logged_out
from django.db.models.signals import post_save, post_delete
from django.core.cache import cache
from axes.models import AccessLog, AccessAttempt
from axes.settings import DISABLE_ACCESS_LOG
user_locked_out = Signal(providing_args=['request', 'username', 'ip_address'])
if not DISABLE_ACCESS_LOG:
@receiver(user_logged_out)
def log_user_lockout(sender, request, user, signal, *args, **kwargs):
""" When a user logs out, update the access log
"""
if not user:
return
access_logs = AccessLog.objects.filter(
username=user.get_username(),
logout_time__isnull=True,
).order_by('-attempt_time')[0:1]
if access_logs:
access_log = access_logs[0]
access_log.logout_time = now()
access_log.save()
@receiver(post_save, sender=AccessAttempt)
def update_cache_after_save(instance, **kwargs):
from axes.decorators import get_cache_timeout, get_cache_key
cache_hash_key = get_cache_key(instance)
if not cache.get(cache_hash_key):
cache_timeout = get_cache_timeout()
cache.set(cache_hash_key, instance.failures_since_start, cache_timeout)
@receiver(post_delete, sender=AccessAttempt)
def delete_cache_after_delete(instance, **kwargs):
from axes.decorators import get_cache_key
cache_hash_key = get_cache_key(instance)
cache.delete(cache_hash_key)