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zulip/zerver/management/commands/thumbnail.py

65 lines
2.5 KiB
Python

from datetime import timedelta
from typing import Any
from django.core.management.base import CommandParser
from django.utils.timezone import now as timezone_now
from typing_extensions import override
from zerver.actions.message_edit import re_thumbnail
from zerver.lib.management import ZulipBaseCommand
from zerver.models import ArchivedMessage, Message
class Command(ZulipBaseCommand):
help = """Manages thumbnailing in messages."""
@override
def add_arguments(self, parser: CommandParser) -> None:
self.add_realm_args(parser, required=True)
mode = parser.add_mutually_exclusive_group(required=True)
mode.add_argument(
"--stuck-spinners",
action="store_true",
help="Attempt to re-render messages with stuck spinners",
)
mode.add_argument(
"--old-images", action="store_true", help="Generate thumbnails of old images"
)
parser.add_argument(
"--cutoff",
help="Only process messages sent less than this many days ago",
type=int,
default=100,
)
@override
def handle(self, *args: Any, **options: Any) -> None:
realm = self.get_realm(options)
assert realm is not None
for message_class in (Message, ArchivedMessage):
messages = message_class.objects.filter(
realm_id=realm.id,
has_image=True,
date_sent__gt=timezone_now() - timedelta(days=options["cutoff"]),
)
if options.get("stuck_spinners"):
messages = messages.filter(
rendered_content__contains='class="image-loading-placeholder"',
date_sent__lt=timezone_now() - timedelta(seconds=60),
)
else:
messages = messages.filter(
rendered_content__contains='<img src="/user_uploads/',
).exclude(
rendered_content__contains='<img src="/user_uploads/thumbnail/',
)
message_ids = list(messages.values_list("id", flat=True))
print(f"Processing {len(message_ids)} {message_class.__name__} objects")
for i, message_id in enumerate(message_ids):
re_thumbnail(message_class, message_id, enqueue=options["old_images"])
if (i + 1) % 100 == 0:
print(f"Processed {i + 1}/{len(message_ids)} {message_class.__name__} objects")