tenants: make event retention configurable on tenant level

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

authentik/events/models.py

@@ -24,8 +24,10 @@ from authentik.events.geo import GEOIP_READER
 from authentik.events.utils import cleanse_dict, get_user, model_to_dict, sanitize_dict
 from authentik.lib.sentry import SentryIgnoredException
 from authentik.lib.utils.http import get_client_ip
+from authentik.lib.utils.time import timedelta_from_string
 from authentik.policies.models import PolicyBindingModel
 from authentik.stages.email.utils import TemplateEmailMessage
+from authentik.tenants.models import Tenant
 from authentik.tenants.utils import DEFAULT_TENANT
 
 LOGGER = get_logger("authentik.events")
@@ -37,7 +39,8 @@ GAUGE_EVENTS = Gauge(
 
 
 def default_event_duration():
-    """Default duration an Event is saved"""
+    """Default duration an Event is saved.
+    This is used as a fallback when no tenant is available"""
     return now() + timedelta(days=365)
 
 
@@ -147,7 +150,12 @@ class Event(ExpiringModel):
                 "method": request.method,
             }
         if hasattr(request, "tenant"):
-            self.tenant = sanitize_dict(model_to_dict(request.tenant))
+            tenant: Tenant = request.tenant
+            # Because self.created only gets set on save, we can't use it's value here
+            # hence we set self.created to now and then use it
+            self.created = now()
+            self.expires = self.created + timedelta_from_string(tenant.event_retention)
+            self.tenant = sanitize_dict(model_to_dict(tenant))
         if hasattr(request, "user"):
             original_user = None
             if hasattr(request, "session"):