44 lines
1.4 KiB
Python
44 lines
1.4 KiB
Python
"""passbook reputation request signals"""
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from django.contrib.auth.signals import user_logged_in, user_login_failed
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from django.core.cache import cache
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from django.dispatch import receiver
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from django.http import HttpRequest
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from structlog import get_logger
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from passbook.lib.utils.http import get_client_ip
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from passbook.policies.reputation.models import (
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CACHE_KEY_IP_PREFIX,
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CACHE_KEY_USER_PREFIX,
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)
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LOGGER = get_logger()
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def update_score(request: HttpRequest, username: str, amount: int):
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"""Update score for IP and User"""
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remote_ip = get_client_ip(request) or "255.255.255.255"
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# We only update the cache here, as its faster than writing to the DB
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cache.get_or_set(CACHE_KEY_IP_PREFIX + remote_ip, 0)
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cache.incr(CACHE_KEY_IP_PREFIX + remote_ip, amount)
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cache.get_or_set(CACHE_KEY_USER_PREFIX + username, 0)
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cache.incr(CACHE_KEY_USER_PREFIX + username, amount)
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LOGGER.debug("Updated score", amount=amount, for_user=username, for_ip=remote_ip)
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@receiver(user_login_failed)
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# pylint: disable=unused-argument
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def handle_failed_login(sender, request, credentials, **_):
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"""Lower Score for failed loging attempts"""
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if "username" in credentials:
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update_score(request, credentials.get("username"), -1)
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@receiver(user_logged_in)
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# pylint: disable=unused-argument
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def handle_successful_login(sender, request, user, **_):
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"""Raise score for successful attempts"""
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update_score(request, user.username, 1)
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