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authentik/authentik/events/middleware.py

104 lines
3.9 KiB
Python

"""Events middleware"""
from functools import partial
from typing import Callable
from django.conf import settings
from django.core.exceptions import SuspiciousOperation
from django.db.models import Model
from django.db.models.signals import post_save, pre_delete
from django.http import HttpRequest, HttpResponse
from guardian.models import UserObjectPermission
from authentik.core.middleware import LOCAL
from authentik.core.models import User
from authentik.events.models import Event, EventAction, Notification
from authentik.events.signals import EventNewThread
from authentik.events.utils import model_to_dict
from authentik.lib.sentry import before_send
from authentik.lib.utils.errors import exception_to_string
class AuditMiddleware:
"""Register handlers for duration of request-response that log creation/update/deletion
of models"""
get_response: Callable[[HttpRequest], HttpResponse]
def __init__(self, get_response: Callable[[HttpRequest], HttpResponse]):
self.get_response = get_response
def __call__(self, request: HttpRequest) -> HttpResponse:
# Connect signal for automatic logging
if hasattr(request, "user") and getattr(request.user, "is_authenticated", False):
post_save_handler = partial(self.post_save_handler, user=request.user, request=request)
pre_delete_handler = partial(
self.pre_delete_handler, user=request.user, request=request
)
post_save.connect(
post_save_handler,
dispatch_uid=LOCAL.authentik["request_id"],
weak=False,
)
pre_delete.connect(
pre_delete_handler,
dispatch_uid=LOCAL.authentik["request_id"],
weak=False,
)
response = self.get_response(request)
post_save.disconnect(dispatch_uid=LOCAL.authentik["request_id"])
pre_delete.disconnect(dispatch_uid=LOCAL.authentik["request_id"])
return response
# pylint: disable=unused-argument
def process_exception(self, request: HttpRequest, exception: Exception):
"""Disconnect handlers in case of exception"""
post_save.disconnect(dispatch_uid=LOCAL.authentik["request_id"])
pre_delete.disconnect(dispatch_uid=LOCAL.authentik["request_id"])
if settings.DEBUG:
return
# Special case for SuspiciousOperation, we have a special event action for that
if isinstance(exception, SuspiciousOperation):
thread = EventNewThread(
EventAction.SUSPICIOUS_REQUEST,
request,
message=str(exception),
)
thread.run()
elif before_send({}, {"exc_info": (None, exception, None)}) is not None:
thread = EventNewThread(
EventAction.SYSTEM_EXCEPTION,
request,
message=exception_to_string(exception),
)
thread.run()
@staticmethod
# pylint: disable=unused-argument
def post_save_handler(
user: User, request: HttpRequest, sender, instance: Model, created: bool, **_
):
"""Signal handler for all object's post_save"""
if isinstance(instance, (Event, Notification, UserObjectPermission)):
return
action = EventAction.MODEL_CREATED if created else EventAction.MODEL_UPDATED
EventNewThread(action, request, user=user, model=model_to_dict(instance)).run()
@staticmethod
# pylint: disable=unused-argument
def pre_delete_handler(user: User, request: HttpRequest, sender, instance: Model, **_):
"""Signal handler for all object's pre_delete"""
if isinstance(instance, (Event, Notification, UserObjectPermission)): # pragma: no cover
return
EventNewThread(
EventAction.MODEL_DELETED,
request,
user=user,
model=model_to_dict(instance),
).run()