src/Worker/ExpirePosts.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2021, 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\Core\Logger;
  25 use Friendica\Core\Worker;
  26 use Friendica\Database\Database;
  27 use Friendica\Database\DBA;
  28 use Friendica\Database\DBStructure;
  29 use Friendica\DI;
  30 use Friendica\Model\Item;
  31 use Friendica\Model\Post;
  32
  33 class ExpirePosts
  34 {
  35         /**
  36          * Expire posts and remove unused item-uri entries
  37          *
  38          * @return void
  39          */
  40         public static function execute()
  41         {
  42                 self::deleteExpiredOriginPosts();
  43
  44                 self::deleteOrphanedEntries();
  45
  46                 self::deleteUnusedItemUri();
  47
  48                 self::deleteExpiredExternalPosts();
  49
  50                 if (DI::config()->get('system', 'add_missing_posts')) {
  51                         self::addMissingEntries();
  52                 }
  53
  54                 // Set the expiry for origin posta
  55                 Worker::add(PRIORITY_LOW, 'Expire');
  56
  57                 // update nodeinfo data after everything is cleaned up
  58                 Worker::add(PRIORITY_LOW, 'NodeInfo');
  59         }
  60
  61         /**
  62          * Delete expired origin posts and orphaned post related table entries
  63          *
  64          * @return void
  65          */
  66         private static function deleteExpiredOriginPosts()
  67         {
  68                 Logger::notice('Delete expired posts');
  69                 // physically remove anything that has been deleted for more than two months
  70                 $condition = ["`gravity` = ? AND `deleted` AND `changed` < UTC_TIMESTAMP() - INTERVAL 60 DAY", GRAVITY_PARENT];
  71                 $rows = Post::select(['guid', 'uri-id', 'uid'],  $condition);
  72                 while ($row = Post::fetch($rows)) {
  73                         Logger::info('Delete expired item', ['uri-id' => $row['uri-id'], 'guid' => $row['guid']]);
  74                         Post\User::delete(['parent-uri-id' => $row['uri-id'], 'uid' => $row['uid']]);
  75                 }
  76                 DBA::close($rows);
  77
  78                 Logger::notice('Delete expired posts - done');
  79         }
  80
  81         /**
  82          * Delete orphaned entries in the post related tables
  83          *
  84          * @return void
  85          */
  86         private static function deleteOrphanedEntries()
  87         {
  88                 Logger::notice('Delete orphaned entries');
  89
  90                 // "post-user" is the leading table. So we delete every entry that isn't found there
  91                 $tables = ['item', 'post', 'post-content', 'post-thread', 'post-thread-user'];
  92                 foreach ($tables as $table) {
  93                         if (($table == 'item') && !DBStructure::existsTable('item')) {
  94                                 continue;
  95                         }
  96
  97                         Logger::notice('Start collecting orphaned entries', ['table' => $table]);
  98                         $uris = DBA::select($table, ['uri-id'], ["NOT `uri-id` IN (SELECT `uri-id` FROM `post-user`)"]);
  99                         $affected_count = 0;
 100                         Logger::notice('Deleting orphaned entries - start', ['table' => $table]);
 101                         while ($rows = DBA::toArray($uris, false, 100)) {
 102                                 $ids = array_column($rows, 'uri-id');
 103                                 DBA::delete($table, ['uri-id' => $ids]);
 104                                 $affected_count += DBA::affectedRows();
 105                         }
 106                         DBA::close($uris);
 107                         Logger::notice('Orphaned entries deleted', ['table' => $table, 'rows' => $affected_count]);
 108                 }
 109                 Logger::notice('Delete orphaned entries - done');
 110         }
 111
 112         /**
 113          * Add missing entries in some post related tables
 114          *
 115          * @return void
 116          */
 117         private static function addMissingEntries()
 118         {
 119                 Logger::notice('Adding missing entries');
 120
 121                 $rows = 0;
 122                 $userposts = DBA::select('post-user', [], ["`uri-id` not in (select `uri-id` from `post`)"], ['group_by' => ['uri-id']]);
 123                 while ($fields = DBA::fetch($userposts)) {
 124                         $post_fields = DBStructure::getFieldsForTable('post', $fields);
 125                         DBA::insert('post', $post_fields, Database::INSERT_IGNORE);
 126                         $rows++;
 127                 }
 128                 DBA::close($userposts);
 129                 if ($rows > 0) {
 130                         Logger::notice('Added post entries', ['rows' => $rows]);
 131                 } else {
 132                         Logger::notice('No post entries added');
 133                 }
 134
 135                 $rows = 0;
 136                 $userposts = DBA::select('post-user', [], ["`gravity` = ? AND `uri-id` not in (select `uri-id` from `post-thread`)", GRAVITY_PARENT], ['group_by' => ['uri-id']]);
 137                 while ($fields = DBA::fetch($userposts)) {
 138                         $post_fields = DBStructure::getFieldsForTable('post-thread', $fields);
 139                         $post_fields['commented'] = $post_fields['changed'] = $post_fields['created'];
 140                         DBA::insert('post-thread', $post_fields, Database::INSERT_IGNORE);
 141                         $rows++;
 142                 }
 143                 DBA::close($userposts);
 144                 if ($rows > 0) {
 145                         Logger::notice('Added post-thread entries', ['rows' => $rows]);
 146                 } else {
 147                         Logger::notice('No post-thread entries added');
 148                 }
 149
 150                 $rows = 0;
 151                 $userposts = DBA::select('post-user', [], ["`gravity` = ? AND `id` not in (select `post-user-id` from `post-thread-user`)", GRAVITY_PARENT]);
 152                 while ($fields = DBA::fetch($userposts)) {
 153                         $post_fields = DBStructure::getFieldsForTable('post-thread-user', $fields);
 154                         $post_fields['commented'] = $post_fields['changed'] = $post_fields['created'];
 155                         DBA::insert('post-thread-user', $post_fields, Database::INSERT_IGNORE);
 156                         $rows++;
 157                 }
 158                 DBA::close($userposts);
 159                 if ($rows > 0) {
 160                         Logger::notice('Added post-thread-user entries', ['rows' => $rows]);
 161                 } else {
 162                         Logger::notice('No post-thread-user entries added');
 163                 }
 164         }
 165
 166         /**
 167          * Delete unused item-uri entries
 168          */
 169         private static function deleteUnusedItemUri()
 170         {
 171                 // We have to avoid deleting newly created "item-uri" entries.
 172                 // So we fetch a post that had been stored yesterday and only delete older ones.
 173                 $item = Post::selectFirst(['uri-id'], ["`uid` = ? AND `received` < UTC_TIMESTAMP() - INTERVAL ? DAY", 0, 1],
 174                         ['order' => ['received' => true]]);
 175                 if (empty($item['uri-id'])) {
 176                         Logger::warning('No item with uri-id found - we better quit here');
 177                         return;
 178                 }
 179                 Logger::notice('Start collecting orphaned URI-ID', ['last-id' => $item['uri-id']]);
 180                 $uris = DBA::select('item-uri', ['id'], ["`id` < ?
 181                         AND NOT EXISTS(SELECT `uri-id` FROM `post-user` WHERE `uri-id` = `item-uri`.`id`)
 182                         AND NOT EXISTS(SELECT `parent-uri-id` FROM `post-user` WHERE `parent-uri-id` = `item-uri`.`id`)
 183                         AND NOT EXISTS(SELECT `thr-parent-id` FROM `post-user` WHERE `thr-parent-id` = `item-uri`.`id`)
 184                         AND NOT EXISTS(SELECT `external-id` FROM `post-user` WHERE `external-id` = `item-uri`.`id`)", $item['uri-id']]);
 185
 186                 Logger::notice('Start deleting orphaned URI-ID', ['last-id' => $item['uri-id']]);
 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                         Logger::info('Deleted', ['rows' => $affected_count]);
 193                 }
 194                 DBA::close($uris);
 195                 Logger::notice('Orphaned URI-ID entries removed', ['rows' => $affected_count]);
 196         }
 197
 198         /**
 199          * Delete old external post entries
 200          */
 201         private static function deleteExpiredExternalPosts()
 202         {
 203                 $expire_days = DI::config()->get('system', 'dbclean-expire-days');
 204                 $expire_days_unclaimed = DI::config()->get('system', 'dbclean-expire-unclaimed');
 205                 if (empty($expire_days_unclaimed)) {
 206                         $expire_days_unclaimed = $expire_days;
 207                 }
 208
 209                 $limit = DI::config()->get('system', 'dbclean-expire-limit');
 210                 if (empty($limit)) {
 211                         return;
 212                 }
 213
 214                 if (!empty($expire_days)) {
 215                         Logger::notice('Start collecting expired threads', ['expiry_days' => $expire_days]);
 216                         $uris = DBA::select('item-uri', ['id'], ["`id` IN
 217                                 (SELECT `uri-id` FROM `post-thread` WHERE `received` < UTC_TIMESTAMP() - INTERVAL ? DAY
 218                                         AND NOT `uri-id` IN (SELECT `uri-id` FROM `post-thread-user`
 219                                                 WHERE (`mention` OR `starred` OR `wall` OR `pinned`) AND `uri-id` = `post-thread`.`uri-id`)
 220                                         AND NOT `uri-id` IN (SELECT `uri-id` FROM `post-category`
 221                                                 WHERE `uri-id` = `post-thread`.`uri-id`)
 222                                         AND NOT `uri-id` IN (SELECT `uri-id` FROM `post-media`
 223                                                 WHERE `uri-id` = `post-thread`.`uri-id`)
 224                                         AND NOT `uri-id` IN (SELECT `parent-uri-id` FROM `post-user` INNER JOIN `contact` ON `contact`.`id` = `contact-id` AND `notify_new_posts`
 225                                                 WHERE `parent-uri-id` = `post-thread`.`uri-id`)
 226                                         AND NOT `uri-id` IN (SELECT `parent-uri-id` FROM `post-user`
 227                                                 WHERE (`origin` OR `event-id` != 0 OR `post-type` IN (?, ?)) AND `parent-uri-id` = `post-thread`.`uri-id`)
 228                                         AND NOT `uri-id` IN (SELECT `uri-id` FROM `post-content`
 229                                                 WHERE `resource-id` != 0 AND `uri-id` = `post-thread`.`uri-id`))",
 230                                 $expire_days, Item::PT_PERSONAL_NOTE, Item::PT_IMAGE]);
 231
 232                         Logger::notice('Start deleting expired threads');
 233                         $affected_count = 0;
 234                         while ($rows = DBA::toArray($uris, false, 100)) {
 235                                 $ids = array_column($rows, 'id');
 236                                 DBA::delete('item-uri', ['id' => $ids]);
 237                                 $affected_count += DBA::affectedRows();
 238                         }
 239                         DBA::close($uris);
 240
 241                         Logger::notice('Deleted expired threads', ['rows' => $affected_count]);
 242                 }
 243
 244                 if (!empty($expire_days_unclaimed)) {
 245                         Logger::notice('Start collecting unclaimed public items', ['expiry_days' => $expire_days_unclaimed]);
 246                         $uris = DBA::select('item-uri', ['id'], ["`id` IN
 247                                 (SELECT `uri-id` FROM `post-user` WHERE `gravity` = ? AND `uid` = ? AND `received` < UTC_TIMESTAMP() - INTERVAL ? DAY
 248                                         AND NOT `uri-id` IN (SELECT `parent-uri-id` FROM `post-user` AS `i` WHERE `i`.`uid` != ?
 249                                                 AND `i`.`parent-uri-id` = `post-user`.`uri-id`)
 250                                         AND NOT `uri-id` IN (SELECT `parent-uri-id` FROM `post-user` AS `i` WHERE `i`.`uid` = ?
 251                                                 AND `i`.`parent-uri-id` = `post-user`.`uri-id` AND `i`.`received` > UTC_TIMESTAMP() - INTERVAL ? DAY))",
 252                                 GRAVITY_PARENT, 0, $expire_days_unclaimed, 0, 0, $expire_days_unclaimed]);
 253
 254                         Logger::notice('Start deleting unclaimed public items');
 255                         $affected_count = 0;
 256                         while ($rows = DBA::toArray($uris, false, 100)) {
 257                                 $ids = array_column($rows, 'id');
 258                                 DBA::delete('item-uri', ['id' => $ids]);
 259                                 $affected_count += DBA::affectedRows();
 260                         }
 261                         DBA::close($uris);
 262                         Logger::notice('Deleted unclaimed public items', ['rows' => $affected_count]);
 263                 }
 264         }
 265 }