zulip/zerver/management/commands/deliver_scheduled_messages.py

57 lines
2.2 KiB
Python

import logging
import time
from typing import Any, Dict
from datetime import timedelta
from django.conf import settings
from django.core.management.base import BaseCommand
from django.db import transaction
from django.utils.timezone import now as timezone_now
from zerver.lib.context_managers import lockfile
from zerver.lib.logging_util import log_to_file
from zerver.models import ScheduledMessage, Message
from zerver.lib.actions import do_send_messages
from zerver.lib.addressee import Addressee
## Setup ##
logger = logging.getLogger(__name__)
log_to_file(logger, settings.SCHEDULED_MESSAGE_DELIVERER_LOG_PATH)
class Command(BaseCommand):
help = """Deliver scheduled messages from the ScheduledMessage table.
Run this command under supervisor.
Usage: ./manage.py deliver_scheduled_messages
"""
def construct_message(self, scheduled_message: ScheduledMessage) -> Dict[str, Any]:
message = Message()
message.sender = scheduled_message.sender
message.content = scheduled_message.content
message.recipient = scheduled_message.recipient
message.subject = scheduled_message.subject
message.pub_date = timezone_now()
message.sending_client = scheduled_message.sending_client
return {'message': message, 'stream': scheduled_message.stream,
'realm': scheduled_message.realm}
def handle(self, *args: Any, **options: Any) -> None:
with lockfile("/tmp/zulip_scheduled_message_deliverer.lockfile"):
while True:
messages_to_deliver = ScheduledMessage.objects.filter(
scheduled_timestamp__lte=timezone_now(),
delivered=False)
if messages_to_deliver:
for message in messages_to_deliver:
with transaction.atomic():
do_send_messages([self.construct_message(message)])
message.delivered = True
message.save(update_fields=['delivered'])
cur_time = timezone_now()
time_next_min = (cur_time + timedelta(minutes=1)).replace(second=0, microsecond=0)
sleep_time = (time_next_min - cur_time).total_seconds()
time.sleep(sleep_time)