src/Worker/RemoveUnusedContacts.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2024, the Friendica project
   4  *
   5  * @license GNU AGPL version 3 or any later version
   6  *
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as
   9  * published by the Free Software Foundation, either version 3 of the
  10  * License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19  *
  20  */
  21
  22 namespace Friendica\Worker;
  23
  24 use Friendica\Contact\Avatar;
  25 use Friendica\Core\Logger;
  26 use Friendica\Core\Protocol;
  27 use Friendica\Database\DBA;
  28 use Friendica\Database\DBStructure;
  29 use Friendica\Model\Contact;
  30 use Friendica\Model\Photo;
  31 use Friendica\Util\DateTimeFormat;
  32
  33 /**
  34  * Removes public contacts that aren't in use
  35  */
  36 class RemoveUnusedContacts
  37 {
  38         public static function execute()
  39         {
  40                 $condition = ["`id` != ? AND `uid` = ? AND NOT `self` AND NOT `nurl` IN (SELECT `nurl` FROM `contact` WHERE `uid` != ?)
  41                         AND (NOT `network` IN (?, ?, ?, ?, ?, ?) OR (`archive` AND `success_update` < ?))
  42                         AND NOT `id` IN (SELECT `author-id` FROM `post-user` WHERE `author-id` = `contact`.`id`)
  43                         AND NOT `id` IN (SELECT `owner-id` FROM `post-user` WHERE `owner-id` = `contact`.`id`)
  44                         AND NOT `id` IN (SELECT `causer-id` FROM `post-user` WHERE `causer-id` IS NOT NULL AND `causer-id` = `contact`.`id`)
  45                         AND NOT `id` IN (SELECT `cid` FROM `post-tag` WHERE `cid` = `contact`.`id`)
  46                         AND NOT `id` IN (SELECT `contact-id` FROM `post-user` WHERE `contact-id` = `contact`.`id`)
  47                         AND NOT `id` IN (SELECT `cid` FROM `user-contact` WHERE `cid` = `contact`.`id`)
  48                         AND NOT `id` IN (SELECT `cid` FROM `event` WHERE `cid` = `contact`.`id`)
  49                         AND NOT `id` IN (SELECT `contact-id` FROM `group_member` WHERE `contact-id` = `contact`.`id`)
  50                         AND `created` < ?",
  51                         0, 0, 0, Protocol::DFRN, Protocol::DIASPORA, Protocol::OSTATUS, Protocol::FEED, Protocol::MAIL, Protocol::ACTIVITYPUB, DateTimeFormat::utc('now - 365 days'), DateTimeFormat::utc('now - 30 days')];
  52
  53                 $total = DBA::count('contact', $condition);
  54                 Logger::notice('Starting removal', ['total' => $total]);
  55                 $count = 0;
  56                 $contacts = DBA::select('contact', ['id', 'uid', 'photo', 'thumb', 'micro'], $condition);
  57                 while ($contact = DBA::fetch($contacts)) {
  58                         Photo::delete(['uid' => $contact['uid'], 'contact-id' => $contact['id']]);
  59                         Avatar::deleteCache($contact);
  60
  61                         if (DBStructure::existsTable('thread')) {
  62                                 DBA::delete('thread', ['owner-id' => $contact['id']]);
  63                                 DBA::delete('thread', ['author-id' => $contact['id']]);
  64                         }
  65                         if (DBStructure::existsTable('item')) {
  66                                 DBA::delete('item', ['owner-id' => $contact['id']]);
  67                                 DBA::delete('item', ['author-id' => $contact['id']]);
  68                                 DBA::delete('item', ['causer-id' => $contact['id']]);
  69                         }
  70
  71                         // There should be none entry for the contact in these tables when none was found in "post-user".
  72                         // But we want to be sure since the foreign key prohibits deletion otherwise.
  73                         DBA::delete('post', ['owner-id' => $contact['id']]);
  74                         DBA::delete('post', ['author-id' => $contact['id']]);
  75                         DBA::delete('post', ['causer-id' => $contact['id']]);
  76
  77                         DBA::delete('post-thread', ['owner-id' => $contact['id']]);
  78                         DBA::delete('post-thread', ['author-id' => $contact['id']]);
  79                         DBA::delete('post-thread', ['causer-id' => $contact['id']]);
  80
  81                         DBA::delete('post-thread-user', ['owner-id' => $contact['id']]);
  82                         DBA::delete('post-thread-user', ['author-id' => $contact['id']]);
  83                         DBA::delete('post-thread-user', ['causer-id' => $contact['id']]);
  84
  85                         Contact::deleteById($contact['id']);
  86                         if ((++$count % 1000) == 0) {
  87                                 Logger::info('In removal', ['count' => $count, 'total' => $total]);
  88                         }
  89                 }
  90                 DBA::close($contacts);
  91                 Logger::notice('Removal done', ['count' => $count, 'total' => $total]);
  92         }
  93 }