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jumpserver/apps/assets/signal_handlers/asset.py

114 lines
3.9 KiB

# -*- coding: utf-8 -*-
#
from django.db.models.signals import (
m2m_changed, pre_delete, post_delete, pre_save, post_save
)
from django.dispatch import receiver
from django.utils.translation import gettext_noop
from assets.models import Asset, Node, Host, Database, Device, Web, Cloud
from assets.tasks import test_assets_connectivity_task, gather_assets_facts_task
from common.const.signals import POST_REMOVE, PRE_REMOVE
from common.decorators import on_transaction_commit, merge_delay_run, key_by_org
from common.utils import get_logger
from orgs.utils import current_org
logger = get_logger(__file__)
@receiver(pre_save, sender=Node)
def on_node_pre_save(sender, instance: Node, **kwargs):
instance.parent_key = instance.compute_parent_key()
@merge_delay_run(ttl=5, key=key_by_org)
def test_assets_connectivity_handler(assets=()):
task_name = gettext_noop("Test assets connectivity ")
asset_ids = [a.id for a in assets]
test_assets_connectivity_task.delay(asset_ids, str(current_org.id), task_name)
@merge_delay_run(ttl=5, key=key_by_org)
def gather_assets_facts_handler(assets=()):
if not assets:
logger.info("No assets to update hardware info")
return
name = gettext_noop("Gather asset hardware info")
asset_ids = [a.id for a in assets]
gather_assets_facts_task.delay(asset_ids, str(current_org.id), task_name=name)
@merge_delay_run(ttl=5, key=key_by_org)
def ensure_asset_has_node(assets=()):
asset_ids = [asset.id for asset in assets]
has_ids = Asset.nodes.through.objects \
.filter(asset_id__in=asset_ids) \
.values_list('asset_id', flat=True)
need_ids = set(asset_ids) - set(has_ids)
if not need_ids:
return
org_root = Node.org_root()
org_root.assets.add(*need_ids)
@receiver(post_save, sender=Asset)
@on_transaction_commit
def on_asset_create(sender, instance=None, created=False, **kwargs):
"""
当资产创建时,更新硬件信息,更新可连接性
确保资产必须属于一个节点
"""
if not created:
return
logger.info("Asset create signal recv: {}".format(instance))
ensure_asset_has_node(assets=(instance,))
# 获取资产硬件信息
auto_config = instance.auto_config
if auto_config.get('ping_enabled'):
logger.debug('Asset {} ping enabled, test connectivity'.format(instance.name))
test_assets_connectivity_handler(assets=(instance,))
if auto_config.get('gather_facts_enabled'):
logger.debug('Asset {} gather facts enabled, gather facts'.format(instance.name))
gather_assets_facts_handler(assets=(instance,))
RELATED_NODE_IDS = '_related_node_ids'
@receiver(pre_delete, sender=Asset)
def on_asset_delete(instance: Asset, using, **kwargs):
node_ids = Node.objects.filter(assets=instance) \
.distinct().values_list('id', flat=True)
node_ids = list(node_ids)
logger.debug("Asset pre delete signal recv: {}, node_ids: {}".format(instance, node_ids))
setattr(instance, RELATED_NODE_IDS, list(node_ids))
m2m_changed.send(
sender=Asset.nodes.through, instance=instance,
reverse=False, model=Node, pk_set=node_ids,
using=using, action=PRE_REMOVE
)
@receiver(post_delete, sender=Asset)
def on_asset_post_delete(instance: Asset, using, **kwargs):
node_ids = getattr(instance, RELATED_NODE_IDS, [])
logger.debug("Asset post delete signal recv: {}, node_ids: {}".format(instance, node_ids))
if node_ids:
m2m_changed.send(
sender=Asset.nodes.through, instance=instance, reverse=False,
model=Node, pk_set=node_ids, using=using, action=POST_REMOVE
)
@on_transaction_commit
def resend_to_asset_signals(sender, signal, instance, **kwargs):
signal.send(sender=Asset, instance=instance.asset_ptr, **kwargs)
for model in (Host, Database, Device, Web, Cloud):
for s in (pre_save, post_save):
s.connect(resend_to_asset_signals, sender=model)