friendica/src/Worker/RemoveUnusedContacts.php
2024-08-24 04:46:30 +00:00

122 lines
5.1 KiB
PHP

<?php
/**
* @copyright Copyright (C) 2010-2024, the Friendica project
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
namespace Friendica\Worker;
use Friendica\Contact\Avatar;
use Friendica\Core\Logger;
use Friendica\Core\Protocol;
use Friendica\Core\Worker;
use Friendica\Database\DBA;
use Friendica\Database\DBStructure;
use Friendica\DI;
use Friendica\Model\Contact;
use Friendica\Model\Photo;
use Friendica\Util\DateTimeFormat;
/**
* Removes public contacts that aren't in use
*/
class RemoveUnusedContacts
{
public static function execute()
{
$loop = 0;
while (self::removeContacts(++$loop)) {
Logger::info('In removal', ['loop' => $loop]);
}
Logger::notice('Remove apcontact entries with no related contact');
DBA::delete('apcontact', ["`uri-id` NOT IN (SELECT `uri-id` FROM `contact`) AND `updated` < ?", DateTimeFormat::utc('now - 30 days')]);
Logger::notice('Removed apcontact entries with no related contact', ['count' => DBA::affectedRows()]);
Logger::notice('Remove diaspora-contact entries with no related contact');
DBA::delete('diaspora-contact', ["`uri-id` NOT IN (SELECT `uri-id` FROM `contact`) AND `updated` < ?", DateTimeFormat::utc('now - 30 days')]);
Logger::notice('Removed diaspora-contact entries with no related contact', ['count' => DBA::affectedRows()]);
}
public static function removeContacts(int $loop): bool
{
Logger::notice('Starting removal', ['loop' => $loop]);
$condition = [
"`id` != ? AND `uid` = ? AND NOT `self` AND NOT `uri-id` IN (SELECT `uri-id` FROM `contact` WHERE `uid` != ?)
AND NOT EXISTS(SELECT `author-id` FROM `post-user` WHERE `author-id` = `contact`.`id`)
AND NOT EXISTS(SELECT `owner-id` FROM `post-user` WHERE `owner-id` = `contact`.`id`)
AND NOT EXISTS(SELECT `causer-id` FROM `post-user` WHERE `causer-id` IS NOT NULL AND `causer-id` = `contact`.`id`)
AND NOT EXISTS(SELECT `cid` FROM `post-tag` WHERE `cid` = `contact`.`id`)
AND NOT EXISTS(SELECT `contact-id` FROM `post-user` WHERE `contact-id` = `contact`.`id`)
AND NOT EXISTS(SELECT `cid` FROM `user-contact` WHERE `cid` = `contact`.`id`)
AND NOT EXISTS(SELECT `cid` FROM `event` WHERE `cid` = `contact`.`id`)
AND NOT EXISTS(SELECT `cid` FROM `group` WHERE `cid` = `contact`.`id`)
AND NOT EXISTS(SELECT `author-id` FROM `mail` WHERE `author-id` = `contact`.`id`)
AND NOT EXISTS(SELECT `contact-id` FROM `mail` WHERE `contact-id` = `contact`.`id`)
AND NOT EXISTS(SELECT `contact-id` FROM `group_member` WHERE `contact-id` = `contact`.`id`)
AND `created` < ?", 0, 0, 0, DateTimeFormat::utc('now - 7 days')
];
if (!DI::config()->get('remove_all_unused_contacts')) {
$condition2 = [
"(NOT `network` IN (?, ?, ?, ?, ?, ?) OR `archive`)",
Protocol::DFRN, Protocol::DIASPORA, Protocol::OSTATUS, Protocol::FEED, Protocol::MAIL, Protocol::ACTIVITYPUB
];
$condition = DBA::mergeConditions($condition2, $condition);
}
$contacts = DBA::select('contact', ['id', 'uid', 'photo', 'thumb', 'micro'], $condition, ['limit' => 1000]);
$count = 0;
while ($contact = DBA::fetch($contacts)) {
++$count;
Photo::delete(['uid' => $contact['uid'], 'contact-id' => $contact['id']]);
Avatar::deleteCache($contact);
if (DBStructure::existsTable('thread')) {
DBA::delete('thread', ['owner-id' => $contact['id']]);
DBA::delete('thread', ['author-id' => $contact['id']]);
}
if (DBStructure::existsTable('item')) {
DBA::delete('item', ['owner-id' => $contact['id']]);
DBA::delete('item', ['author-id' => $contact['id']]);
DBA::delete('item', ['causer-id' => $contact['id']]);
}
// There should be none entry for the contact in these tables when none was found in "post-user".
// But we want to be sure since the foreign key prohibits deletion otherwise.
DBA::delete('post', ['owner-id' => $contact['id']]);
DBA::delete('post', ['author-id' => $contact['id']]);
DBA::delete('post', ['causer-id' => $contact['id']]);
DBA::delete('post-thread', ['owner-id' => $contact['id']]);
DBA::delete('post-thread', ['author-id' => $contact['id']]);
DBA::delete('post-thread', ['causer-id' => $contact['id']]);
DBA::delete('post-thread-user', ['owner-id' => $contact['id']]);
DBA::delete('post-thread-user', ['author-id' => $contact['id']]);
DBA::delete('post-thread-user', ['causer-id' => $contact['id']]);
Contact::deleteById($contact['id']);
}
DBA::close($contacts);
Logger::notice('Removal done', ['count' => $count]);
return ($count == 1000 && Worker::isInMaintenanceWindow());
}
}