mirror of https://github.com/jumpserver/jumpserver
223 lines
7.9 KiB
Python
223 lines
7.9 KiB
Python
# -*- coding: utf-8 -*-
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#
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from collections import defaultdict
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from django.db.models.signals import (
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post_save, m2m_changed, post_delete
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)
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from django.db.models.aggregates import Count
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from django.dispatch import receiver
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from common.utils import get_logger
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from common.decorator import on_transaction_commit
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from orgs.utils import tmp_to_root_org
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from .models import Asset, SystemUser, Node, AuthBook
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from .utils import TreeService
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from .tasks import (
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update_assets_hardware_info_util,
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test_asset_connectivity_util,
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push_system_user_to_assets,
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add_nodes_assets_to_system_users
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)
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logger = get_logger(__file__)
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def update_asset_hardware_info_on_created(asset):
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logger.debug("Update asset `{}` hardware info".format(asset))
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update_assets_hardware_info_util.delay([asset])
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def test_asset_conn_on_created(asset):
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logger.debug("Test asset `{}` connectivity".format(asset))
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test_asset_connectivity_util.delay([asset])
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@receiver(post_save, sender=Asset)
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@on_transaction_commit
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def on_asset_created_or_update(sender, instance=None, created=False, **kwargs):
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"""
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当资产创建时，更新硬件信息，更新可连接性
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确保资产必须属于一个节点
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"""
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if created:
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logger.info("Asset create signal recv: {}".format(instance))
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# 获取资产硬件信息
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update_asset_hardware_info_on_created(instance)
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test_asset_conn_on_created(instance)
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# 确保资产存在一个节点
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has_node = instance.nodes.all().exists()
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if not has_node:
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instance.nodes.add(Node.org_root())
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@receiver(post_delete, sender=Asset)
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def on_asset_delete(sender, instance=None, **kwargs):
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"""
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当资产删除时，刷新节点，节点中存在节点和资产的关系
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"""
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logger.debug("Asset delete signal recv: {}".format(instance))
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Node.refresh_assets()
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@receiver(post_save, sender=SystemUser, dispatch_uid="jms")
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def on_system_user_update(sender, instance=None, created=True, **kwargs):
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"""
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当系统用户更新时，可能更新了秘钥，用户名等，这时要自动推送系统用户到资产上,
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其实应该当 用户名，密码，秘钥 sudo等更新时再推送，这里偷个懒,
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这里直接取了 instance.assets 因为nodes和系统用户发生变化时，会自动将nodes下的资产
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关联到上面
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"""
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if instance and not created:
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logger.info("System user update signal recv: {}".format(instance))
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assets = instance.assets.all().valid()
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push_system_user_to_assets.delay(instance, assets)
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@receiver(m2m_changed, sender=SystemUser.assets.through)
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def on_system_user_assets_change(sender, instance=None, action='', model=None, pk_set=None, **kwargs):
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"""
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当系统用户和资产关系发生变化时，应该重新推送系统用户到新添加的资产中
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"""
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if action != "post_add":
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return
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logger.debug("System user assets change signal recv: {}".format(instance))
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queryset = model.objects.filter(pk__in=pk_set)
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if model == Asset:
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system_users = [instance]
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assets = queryset
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else:
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system_users = queryset
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assets = [instance]
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for system_user in system_users:
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push_system_user_to_assets.delay(system_user, assets)
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@receiver(m2m_changed, sender=SystemUser.nodes.through)
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def on_system_user_nodes_change(sender, instance=None, action=None, model=None, pk_set=None, **kwargs):
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"""
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当系统用户和节点关系发生变化时，应该将节点下资产关联到新的系统用户上
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"""
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if action != "post_add":
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return
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logger.info("System user nodes update signal recv: {}".format(instance))
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queryset = model.objects.filter(pk__in=pk_set)
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if model == Node:
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nodes_keys = queryset.values_list('key', flat=True)
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system_users = [instance]
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else:
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nodes_keys = [instance.key]
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system_users = queryset
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add_nodes_assets_to_system_users.delay(nodes_keys, system_users)
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@receiver(m2m_changed, sender=SystemUser.groups.through)
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def on_system_user_groups_change(sender, instance=None, action=None, model=None,
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pk_set=None, reverse=False, **kwargs):
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"""
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当系统用户和用户组关系发生变化时，应该将组下用户关联到新的系统用户上
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"""
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if action != "post_add" or reverse:
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return
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logger.info("System user groups update signal recv: {}".format(instance))
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groups = model.objects.filter(pk__in=pk_set).annotate(users_count=Count("users"))
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users = groups.filter(users_count__gt=0).values_list('users', flat=True)
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instance.users.add(*tuple(users))
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@receiver(m2m_changed, sender=Asset.nodes.through)
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def on_asset_nodes_change(sender, instance=None, action='', **kwargs):
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"""
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资产节点发生变化时，刷新节点
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"""
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if action.startswith('post'):
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logger.debug("Asset nodes change signal recv: {}".format(instance))
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Node.refresh_assets()
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with tmp_to_root_org():
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Node.refresh_assets()
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@receiver(m2m_changed, sender=Asset.nodes.through)
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def on_asset_nodes_add(sender, instance=None, action='', model=None, pk_set=None, **kwargs):
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"""
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当资产的节点发生变化时，或者 当节点的资产关系发生变化时，
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节点下新增的资产，添加到节点关联的系统用户中
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"""
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if action != "post_add":
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return
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logger.debug("Assets node add signal recv: {}".format(action))
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if model == Node:
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nodes = model.objects.filter(pk__in=pk_set).values_list('key', flat=True)
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assets = [instance.id]
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else:
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nodes = [instance.key]
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assets = model.objects.filter(pk__in=pk_set).values_list('id', flat=True)
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# 节点资产发生变化时，将资产关联到节点及祖先节点关联的系统用户, 只关注新增的
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nodes_ancestors_keys = set()
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node_tree = TreeService.new()
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for node in nodes:
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ancestors_keys = node_tree.ancestors_ids(nid=node)
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nodes_ancestors_keys.update(ancestors_keys)
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system_users = SystemUser.objects.filter(nodes__key__in=nodes_ancestors_keys)
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system_users_assets = defaultdict(set)
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for system_user in system_users:
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system_users_assets[system_user].update(set(assets))
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for system_user, _assets in system_users_assets.items():
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system_user.assets.add(*tuple(_assets))
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@receiver(m2m_changed, sender=Asset.nodes.through)
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def on_asset_nodes_remove(sender, instance=None, action='', model=None,
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pk_set=None, **kwargs):
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"""
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监控资产删除节点关系, 或节点删除资产，避免产生游离资产
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"""
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if action not in ["post_remove", "pre_clear", "post_clear"]:
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return
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if action == "pre_clear":
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if model == Node:
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instance._nodes = list(instance.nodes.all())
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else:
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instance._assets = list(instance.assets.all())
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return
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logger.debug("Assets node remove signal recv: {}".format(action))
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if action == "post_remove":
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queryset = model.objects.filter(pk__in=pk_set)
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else:
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if model == Node:
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queryset = instance._nodes
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else:
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queryset = instance._assets
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if model == Node:
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assets = [instance]
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else:
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assets = queryset
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if isinstance(assets, list):
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assets_not_has_node = []
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for asset in assets:
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if asset.nodes.all().count() == 0:
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assets_not_has_node.append(asset.id)
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else:
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assets_not_has_node = assets.annotate(nodes_count=Count('nodes'))\
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.filter(nodes_count=0).values_list('id', flat=True)
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Node.org_root().assets.add(*tuple(assets_not_has_node))
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@receiver([post_save, post_delete], sender=Node)
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def on_node_update_or_created(sender, **kwargs):
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# 刷新节点
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Node.refresh_nodes()
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with tmp_to_root_org():
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Node.refresh_nodes()
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@receiver(post_save, sender=AuthBook)
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def on_authbook_created(sender, instance=None, created=True, **kwargs):
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if created and instance:
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instance.set_version()
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