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jumpserver/apps/orgs/signal_handlers/cache.py

133 lines
4.4 KiB

from django.db.models.signals import post_save, pre_delete, pre_save, post_delete
from django.dispatch import receiver
from orgs.models import Organization
from assets.models import Node
from perms.models import AssetPermission
from users.models import UserGroup, User
from users.signals import pre_user_leave_org
from terminal.models import Session
from rbac.models import OrgRoleBinding, SystemRoleBinding, RoleBinding
from assets.models import Asset, Domain, Gateway
from orgs.caches import OrgResourceStatisticsCache
from orgs.utils import current_org
from common.utils import get_logger
logger = get_logger(__name__)
def refresh_cache(name, org):
names = None
if isinstance(name, (str,)):
names = [name, ]
if isinstance(names, (list, tuple)):
for name in names:
OrgResourceStatisticsCache(org).expire(name)
OrgResourceStatisticsCache(Organization.root()).expire(name)
else:
logger.warning('refresh cache fail: {}'.format(name))
def refresh_user_amount_cache(user):
orgs = user.orgs.distinct()
for org in orgs:
refresh_cache('users_amount', org)
@receiver(post_save, sender=OrgRoleBinding)
def on_user_create_or_invite_refresh_cache(sender, instance, created, **kwargs):
if created:
refresh_cache('users_amount', instance.org)
@receiver(post_save, sender=SystemRoleBinding)
def on_user_global_create_refresh_cache(sender, instance, created, **kwargs):
if created and current_org.is_root():
refresh_cache('users_amount', current_org)
@receiver(pre_user_leave_org)
def on_user_remove_refresh_cache(sender, org=None, **kwargs):
refresh_cache('users_amount', org)
@receiver(pre_delete, sender=User)
def on_user_delete_refresh_cache(sender, instance, **kwargs):
refresh_user_amount_cache(instance)
# @receiver(m2m_changed, sender=OrganizationMember)
# def on_org_user_changed_refresh_cache(sender, action, instance, reverse, pk_set, **kwargs):
# if not action.startswith(POST_PREFIX):
# return
#
# if reverse:
# orgs = Organization.objects.filter(id__in=pk_set)
# else:
# orgs = [instance]
#
# for org in orgs:
# org_cache = OrgResourceStatisticsCache(org)
# org_cache.expire('users_amount')
# OrgResourceStatisticsCache(Organization.root()).expire('users_amount')
class OrgResourceStatisticsRefreshUtil:
model_cache_field_mapper = {
AssetPermission: ['asset_perms_amount'],
Gateway: ['gateways_amount'],
Domain: ['domains_amount'],
Node: ['nodes_amount'],
Asset: ['assets_amount'],
UserGroup: ['groups_amount'],
RoleBinding: ['users_amount']
}
@classmethod
def refresh_if_need(cls, instance):
cache_field_name = cls.model_cache_field_mapper.get(type(instance))
if not cache_field_name:
return
OrgResourceStatisticsCache(Organization.root()).expire(*cache_field_name)
if instance.org:
OrgResourceStatisticsCache(instance.org).expire(*cache_field_name)
@receiver(post_save)
def on_post_save_refresh_org_resource_statistics_cache(sender, instance, created, **kwargs):
if created:
OrgResourceStatisticsRefreshUtil.refresh_if_need(instance)
@receiver(post_delete)
def on_post_delete_refresh_org_resource_statistics_cache(sender, instance, **kwargs):
OrgResourceStatisticsRefreshUtil.refresh_if_need(instance)
def _refresh_session_org_resource_statistics_cache(instance: Session):
cache_field_name = ['total_count_online_users', 'total_count_online_sessions']
org_cache = OrgResourceStatisticsCache(instance.org)
org_cache.expire(*cache_field_name)
OrgResourceStatisticsCache(Organization.root()).expire(*cache_field_name)
@receiver(pre_save, sender=Session)
def on_session_pre_save(sender, instance: Session, **kwargs):
old = Session.objects.filter(id=instance.id).values_list('is_finished', flat=True)
if old:
instance._signal_old_is_finished = old[0]
else:
instance._signal_old_is_finished = None
@receiver(post_save, sender=Session)
def on_session_changed_refresh_org_resource_statistics_cache(sender, instance, created, **kwargs):
if created or instance.is_finished != instance._signal_old_is_finished:
_refresh_session_org_resource_statistics_cache(instance)
@receiver(post_delete, sender=Session)
def on_session_deleted_refresh_org_resource_statistics_cache(sender, instance, **kwargs):
_refresh_session_org_resource_statistics_cache(instance)