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# -*- coding: utf-8 -*-
#
import datetime
from celery import shared_task
from celery.utils.log import get_task_logger
from django.utils import timezone
from django.conf import settings
from django.core.files.storage import default_storage
from ops.celery.utils import register_as_period_task, after_app_ready_start, \
after_app_shutdown_clean
from .models import Status, Session, Command
CACHE_REFRESH_INTERVAL = 10
RUNNING = False
logger = get_task_logger(__name__)
@shared_task
@register_as_period_task(interval=3600)
@after_app_ready_start
@after_app_shutdown_clean
def delete_terminal_status_period():
yesterday = timezone.now() - datetime.timedelta(days=3)
Status.objects.filter(date_created__lt=yesterday).delete()
@shared_task
@register_as_period_task(interval=3600)
@after_app_ready_start
@after_app_shutdown_clean
def clean_orphan_session():
active_sessions = Session.objects.filter(is_finished=False)
for session in active_sessions:
if not session.terminal or not session.terminal.is_active:
session.is_finished = True
session.save()
@shared_task
@register_as_period_task(interval=3600*24)
@after_app_ready_start
@after_app_shutdown_clean
def clean_expired_session_period():
logger.info("Start clean expired session record, commands and replay")
days = settings.TERMINAL_SESSION_KEEP_DURATION
dt = timezone.now() - timezone.timedelta(days=days)
expired_sessions = Session.objects.filter(date_start__lt=dt)
for session in expired_sessions:
logger.info("Clean session: {}".format(session.id))
Command.objects.filter(session=str(session.id)).delete()
# 删除录像文件
session_path = session.get_rel_replay_path()
local_path = session.get_local_path()
local_path_v1 = session.get_local_path(version=1)
# 去default storage中查找
for _local_path in (local_path, local_path_v1, session_path):
if default_storage.exists(_local_path):
default_storage.delete(_local_path)
# 删除session记录
session.delete()