Files
authentik/authentik/events/signals.py
2025-04-22 16:11:42 +02:00

133 lines
5.2 KiB
Python

"""authentik events signal listener"""
from importlib import import_module
from typing import Any
from django.conf import settings
from django.contrib.auth.signals import user_logged_in, user_logged_out
from django.db.models.signals import post_save, pre_delete
from django.dispatch import receiver
from django.http import HttpRequest
from rest_framework.request import Request
from authentik.core.models import AuthenticatedSession, User
from authentik.core.signals import login_failed, password_changed
from authentik.events.apps import SYSTEM_TASK_STATUS
from authentik.events.models import Event, EventAction, SystemTask
from authentik.events.tasks import event_notification_handler, gdpr_cleanup
from authentik.flows.models import Stage
from authentik.flows.planner import PLAN_CONTEXT_OUTPOST, PLAN_CONTEXT_SOURCE, FlowPlan
from authentik.flows.views.executor import SESSION_KEY_PLAN
from authentik.root.monitoring import monitoring_set
from authentik.stages.invitation.models import Invitation
from authentik.stages.invitation.signals import invitation_used
from authentik.stages.password.stage import PLAN_CONTEXT_METHOD, PLAN_CONTEXT_METHOD_ARGS
from authentik.stages.user_write.signals import user_write
from authentik.tenants.utils import get_current_tenant
SESSION_LOGIN_EVENT = "login_event"
_session_engine = import_module(settings.SESSION_ENGINE)
@receiver(user_logged_in)
def on_user_logged_in(sender, request: HttpRequest, user: User, **_):
"""Log successful login"""
kwargs = {}
if SESSION_KEY_PLAN in request.session:
flow_plan: FlowPlan = request.session[SESSION_KEY_PLAN]
if PLAN_CONTEXT_SOURCE in flow_plan.context:
# Login request came from an external source, save it in the context
kwargs[PLAN_CONTEXT_SOURCE] = flow_plan.context[PLAN_CONTEXT_SOURCE]
if PLAN_CONTEXT_METHOD in flow_plan.context:
# Save the login method used
kwargs[PLAN_CONTEXT_METHOD] = flow_plan.context[PLAN_CONTEXT_METHOD]
kwargs[PLAN_CONTEXT_METHOD_ARGS] = flow_plan.context.get(PLAN_CONTEXT_METHOD_ARGS, {})
if PLAN_CONTEXT_OUTPOST in flow_plan.context:
# Save outpost context
kwargs[PLAN_CONTEXT_OUTPOST] = flow_plan.context[PLAN_CONTEXT_OUTPOST]
event = Event.new(EventAction.LOGIN, **kwargs).from_http(request, user=user)
request.session[SESSION_LOGIN_EVENT] = event
request.session.save()
def get_login_event(request_or_session: HttpRequest | AuthenticatedSession | None) -> Event | None:
"""Wrapper to get login event that can be mocked in tests"""
session = None
if not request_or_session:
return None
if isinstance(request_or_session, HttpRequest | Request):
session = request_or_session.session
if isinstance(request_or_session, AuthenticatedSession):
SessionStore = _session_engine.SessionStore
session = SessionStore(request_or_session.session.session_key)
return session.get(SESSION_LOGIN_EVENT, None)
@receiver(user_logged_out)
def on_user_logged_out(sender, request: HttpRequest, user: User, **kwargs):
"""Log successfully logout"""
# Check if this even comes from the user_login stage's middleware, which will set an extra
# argument
event = Event.new(EventAction.LOGOUT)
if "event_extra" in kwargs:
event.context.update(kwargs["event_extra"])
event.from_http(request, user=user)
@receiver(user_write)
def on_user_write(sender, request: HttpRequest, user: User, data: dict[str, Any], **kwargs):
"""Log User write"""
data["created"] = kwargs.get("created", False)
Event.new(EventAction.USER_WRITE, **data).from_http(request, user=user)
@receiver(login_failed)
def on_login_failed(
signal,
sender,
credentials: dict[str, str],
request: HttpRequest,
stage: Stage | None = None,
**kwargs,
):
"""Failed Login, authentik custom event"""
user = User.objects.filter(username=credentials.get("username")).first()
Event.new(EventAction.LOGIN_FAILED, **credentials, stage=stage, **kwargs).from_http(
request, user
)
@receiver(invitation_used)
def on_invitation_used(sender, request: HttpRequest, invitation: Invitation, **_):
"""Log Invitation usage"""
Event.new(EventAction.INVITE_USED, invitation_uuid=invitation.invite_uuid.hex).from_http(
request
)
@receiver(password_changed)
def on_password_changed(sender, user: User, password: str, request: HttpRequest | None, **_):
"""Log password change"""
Event.new(EventAction.PASSWORD_SET).from_http(request, user=user)
@receiver(post_save, sender=Event)
def event_post_save_notification(sender, instance: Event, **_):
"""Start task to check if any policies trigger an notification on this event"""
event_notification_handler.send(instance.event_uuid.hex)
@receiver(pre_delete, sender=User)
def event_user_pre_delete_cleanup(sender, instance: User, **_):
"""If gdpr_compliance is enabled, remove all the user's events"""
if get_current_tenant().gdpr_compliance:
gdpr_cleanup.send(instance.pk)
@receiver(monitoring_set)
def monitoring_system_task(sender, **_):
"""Update metrics when task is saved"""
SYSTEM_TASK_STATUS.clear()
for task in SystemTask.objects.all():
task.update_metrics()