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from collections import defaultdict
from django.db.models.signals import post_delete
from django.db.models.signals import pre_save, post_save
from django.dispatch import receiver
from django.utils.translation import gettext_noop
from accounts.backends import vault_client
from accounts.const import Source
from audits.const import ActivityChoices
from audits.signal_handlers import create_activities
from common.decorators import merge_delay_run
from common.utils import get_logger, i18n_fmt
from .models import Account, AccountTemplate
from .tasks.push_account import push_accounts_to_assets_task
logger = get_logger(__name__)
@receiver(pre_save, sender=Account)
def on_account_pre_save(sender, instance, **kwargs):
if instance.version == 0:
instance.version = 1
else:
history_account = instance.history.first()
instance.version = history_account.version + 1 if history_account else 0
@merge_delay_run(ttl=5)
def push_accounts_if_need(accounts=()):
from .models import AccountTemplate
template_accounts = defaultdict(list)
for ac in accounts:
# 再强调一次吧
if ac.source != Source.TEMPLATE:
continue
template_accounts[ac.source_id].append(ac)
for source_id, accounts in template_accounts.items():
template = AccountTemplate.objects.filter(id=source_id).first()
if not template or not template.auto_push:
continue
logger.debug("Push accounts to source: %s", source_id)
account_ids = [str(ac.id) for ac in accounts]
task = push_accounts_to_assets_task.delay(account_ids, params=template.push_params)
detail = i18n_fmt(
gettext_noop('Push related accounts to assets: %s, by system'),
len(account_ids)
)
create_activities([str(template.id)], detail, task.id, ActivityChoices.task, template.org_id)
logger.debug("Push accounts to source: %s, task: %s", source_id, task)
def create_accounts_activities(account, action='create'):
if action == 'create':
detail = i18n_fmt(gettext_noop('Add account: %s'), str(account))
else:
detail = i18n_fmt(gettext_noop('Delete account: %s'), str(account))
create_activities([account.asset_id], detail, None, ActivityChoices.operate_log, account.org_id)
@receiver(post_save, sender=Account)
def on_account_create_by_template(sender, instance, created=False, **kwargs):
if not created or instance.source != Source.TEMPLATE:
return
push_accounts_if_need.delay(accounts=(instance,))
create_accounts_activities(instance, action='create')
@receiver(post_delete, sender=Account)
def on_account_delete(sender, instance, **kwargs):
create_accounts_activities(instance, action='delete')
class VaultSignalHandler(object):
""" 处理 Vault 相关的信号 """
@staticmethod
def save_to_vault(sender, instance, created, **kwargs):
if created:
vault_client.create(instance)
else:
vault_client.update(instance)
@staticmethod
def delete_to_vault(sender, instance, **kwargs):
vault_client.delete(instance)
for model in (Account, AccountTemplate, Account.history.model):
post_save.connect(VaultSignalHandler.save_to_vault, sender=model)
post_delete.connect(VaultSignalHandler.delete_to_vault, sender=model)