src/Worker/ExpirePosts.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2020, Friendica
   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\Core\Logger;
  25 use Friendica\Core\Worker;
  26 use Friendica\Database\DBA;
  27 use Friendica\Database\DBStructure;
  28 use Friendica\DI;
  29 use Friendica\Model\Item;
  30 use Friendica\Model\Post;
  31
  32 class ExpirePosts
  33 {
  34         /**
  35          * Expire posts and remove unused item-uri entries
  36          *
  37          * @return void
  38          */
  39         public static function execute()
  40         {
  41                 self::deleteExpiredOriginPosts();
  42
  43                 self::deleteUnusedItemUri();
  44
  45                 self::deleteExpiredExternalPosts();
  46
  47                 // Set the expiry for origin posta
  48                 Worker::add(PRIORITY_LOW, 'Expire');
  49
  50                 // update nodeinfo data after everything is cleaned up
  51                 Worker::add(PRIORITY_LOW, 'NodeInfo');
  52         }
  53
  54         /**
  55          * Delete expired origin posts and orphaned post related table entries
  56          *
  57          * @return void
  58          */
  59         private static function deleteExpiredOriginPosts()
  60         {
  61                 Logger::info('Delete expired posts');
  62                 // physically remove anything that has been deleted for more than two months
  63                 $condition = ["`gravity` = ? AND `deleted` AND `changed` < UTC_TIMESTAMP() - INTERVAL 60 DAY", GRAVITY_PARENT];
  64                 $rows = Post::select(['guid', 'uri-id', 'uid'],  $condition);
  65                 while ($row = Post::fetch($rows)) {
  66                         Logger::info('Delete expired item', ['uri-id' => $row['uri-id'], 'guid' => $row['guid']]);
  67                         if (DBStructure::existsTable('item')) {
  68                                 DBA::delete('item', ['parent-uri-id' => $row['uri-id'], 'uid' => $row['uid']]);
  69                         }
  70                         Post\User::delete(['parent-uri-id' => $row['uri-id'], 'uid' => $row['uid']]);
  71                 }
  72                 DBA::close($rows);
  73
  74                 Logger::info('Deleting orphaned post entries - start');
  75                 $condition = ["NOT EXISTS (SELECT `uri-id` FROM `post-user` WHERE `post-user`.`uri-id` = `post`.`uri-id`)"];
  76                 DBA::delete('post', $condition);
  77                 Logger::info('Orphaned post entries deleted', ['rows' => DBA::affectedRows()]);
  78
  79                 Logger::info('Deleting orphaned post-content entries - start');
  80                 $condition = ["NOT EXISTS (SELECT `uri-id` FROM `post-user` WHERE `post-user`.`uri-id` = `post-content`.`uri-id`)"];
  81                 DBA::delete('post-content', $condition);
  82                 Logger::info('Orphaned post-content entries deleted', ['rows' => DBA::affectedRows()]);
  83
  84                 Logger::info('Deleting orphaned post-thread entries - start');
  85                 $condition = ["NOT EXISTS (SELECT `uri-id` FROM `post-user` WHERE `post-user`.`uri-id` = `post-thread`.`uri-id`)"];
  86                 DBA::delete('post-thread', $condition);
  87                 Logger::info('Orphaned post-thread entries deleted', ['rows' => DBA::affectedRows()]);
  88
  89                 Logger::info('Deleting orphaned post-thread-user entries - start');
  90                 $condition = ["NOT EXISTS (SELECT `uri-id` FROM `post-user` WHERE `post-user`.`uri-id` = `post-thread-user`.`uri-id`)"];
  91                 DBA::delete('post-thread-user', $condition);
  92                 Logger::info('Orphaned post-thread-user entries deleted', ['rows' => DBA::affectedRows()]);
  93
  94                 Logger::info('Delete expired posts - done');
  95         }
  96
  97         /**
  98          * Delete unused item-uri entries
  99          */
 100         private static function deleteUnusedItemUri()
 101         {
 102                 $a = DI::app();
 103
 104                 // We have to avoid deleting newly created "item-uri" entries.
 105                 // So we fetch a post that had been stored yesterday and only delete older ones.
 106                 $item = Post::selectFirst(['uri-id'], ["`uid` = ? AND `received` < UTC_TIMESTAMP() - INTERVAL ? DAY", 0, 1],
 107                         ['order' => ['received' => true]]);
 108                 if (empty($item['uri-id'])) {
 109                         Logger::warning('No item with uri-id found - we better quit here');
 110                         return;
 111                 }
 112                 Logger::notice('Start deleting orphaned URI-ID', ['last-id' => $item['uri-id']]);
 113                 $uris = DBA::select('item-uri', ['id'], ["`id` < ?
 114                         AND NOT EXISTS(SELECT `uri-id` FROM `post` WHERE `uri-id` = `item-uri`.`id`)
 115                         AND NOT EXISTS(SELECT `parent-uri-id` FROM `post` WHERE `parent-uri-id` = `item-uri`.`id`)
 116                         AND NOT EXISTS(SELECT `thr-parent-id` FROM `post` WHERE `thr-parent-id` = `item-uri`.`id`)
 117                         AND NOT EXISTS(SELECT `external-id` FROM `post` WHERE `external-id` = `item-uri`.`id`)", $item['uri-id']]);
 118
 119                 $affected_count = 0;
 120                 while ($rows = DBA::toArray($uris, false, 100)) {
 121                         $ids = array_column($rows, 'id');
 122                         DBA::delete('item-uri', ['id' => $ids]);
 123                         $affected_count += DBA::affectedRows();
 124                         Logger::info('Deleted', ['rows' => $affected_count]);
 125                 }
 126                 DBA::close($uris);
 127                 Logger::notice('Orphaned URI-ID entries removed', ['rows' => $affected_count]);
 128         }
 129
 130         /**
 131          * Delete old external post entries
 132          */
 133         private static function deleteExpiredExternalPosts()
 134         {
 135                 $expire_days = DI::config()->get('system', 'dbclean-expire-days');
 136                 $expire_days_unclaimed = DI::config()->get('system', 'dbclean-expire-unclaimed');
 137                 if (empty($expire_days_unclaimed)) {
 138                         $expire_days_unclaimed = $expire_days;
 139                 }
 140
 141                 $limit = DI::config()->get('system', 'dbclean-expire-limit');
 142                 if (empty($limit)) {
 143                         return;
 144                 }
 145
 146                 if (!empty($expire_days)) {
 147                         Logger::notice('Start collecting expired threads', ['expiry_days' => $expire_days]);
 148                         $uris = DBA::select('item-uri', ['id'], ["`id` IN
 149                                 (SELECT `uri-id` FROM `post-thread` WHERE `received` < UTC_TIMESTAMP() - INTERVAL ? DAY
 150                                         AND NOT `uri-id` IN (SELECT `uri-id` FROM `post-thread-user`
 151                                                 WHERE (`mention` OR `starred` OR `wall` OR `pinned`) AND `uri-id` = `post-thread`.`uri-id`)
 152                                         AND NOT `uri-id` IN (SELECT `uri-id` FROM `post-category`
 153                                                 WHERE `uri-id` = `post-thread`.`uri-id`)
 154                                         AND NOT `uri-id` IN (SELECT `uri-id` FROM `post-media`
 155                                                 WHERE `uri-id` = `post-thread`.`uri-id`)
 156                                         AND NOT `uri-id` IN (SELECT `parent-uri-id` FROM `post-user` INNER JOIN `contact` ON `contact`.`id` = `contact-id` AND `notify_new_posts`
 157                                                 WHERE `parent-uri-id` = `post-thread`.`uri-id`)
 158                                         AND NOT `uri-id` IN (SELECT `parent-uri-id` FROM `post-user`
 159                                                 WHERE (`origin` OR `event-id` != 0 OR `post-type` = ?) AND `parent-uri-id` = `post-thread`.`uri-id`)
 160                                         AND NOT `uri-id` IN (SELECT `uri-id` FROM `post-content`
 161                                                 WHERE `resource-id` != 0 AND `uri-id` = `post-thread`.`uri-id`))",
 162                                 $expire_days, Item::PT_PERSONAL_NOTE]);
 163
 164                         Logger::notice('Start deleting expired threads');
 165                         $affected_count = 0;
 166                         while ($rows = DBA::toArray($uris, false, 100)) {
 167                                 $ids = array_column($rows, 'id');
 168                                 DBA::delete('item-uri', ['id' => $ids]);
 169                                 $affected_count += DBA::affectedRows();
 170                         }
 171                         DBA::close($uris);
 172
 173                         Logger::notice('Deleted expired threads', ['rows' => $affected_count]);
 174                 }
 175
 176                 if (!empty($expire_days_unclaimed)) {
 177                         Logger::notice('Start collecting unclaimed public items', ['expiry_days' => $expire_days_unclaimed]);
 178                         $uris = DBA::select('item-uri', ['id'], ["`id` IN
 179                                 (SELECT `uri-id` FROM `post-user` WHERE `gravity` = ? AND `uid` = ? AND `received` < UTC_TIMESTAMP() - INTERVAL ? DAY
 180                                         AND NOT `uri-id` IN (SELECT `parent-uri-id` FROM `post-user` AS `i` WHERE `i`.`uid` != ?
 181                                                 AND `i`.`parent-uri-id` = `post-user`.`uri-id`)
 182                                         AND NOT `uri-id` IN (SELECT `parent-uri-id` FROM `post-user` AS `i` WHERE `i`.`uid` = ?
 183                                                 AND `i`.`parent-uri-id` = `post-user`.`uri-id` AND `i`.`received` > UTC_TIMESTAMP() - INTERVAL ? DAY))",
 184                                 GRAVITY_PARENT, 0, $expire_days_unclaimed, 0, 0, $expire_days_unclaimed]);
 185
 186                         Logger::notice('Start deleting unclaimed public items');
 187                         $affected_count = 0;
 188                         while ($rows = DBA::toArray($uris, false, 100)) {
 189                                 $ids = array_column($rows, 'id');
 190                                 DBA::delete('item-uri', ['id' => $ids]);
 191                                 $affected_count += DBA::affectedRows();
 192                         }
 193                         DBA::close($uris);
 194                         Logger::notice('Deleted unclaimed public items', ['rows' => $affected_count]);
 195                 }
 196         }
 197 }