src/Worker/ExpireAndRemoveUsers.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2023, 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\Database\DBA;
  26 use Friendica\Database\DBStructure;
  27 use Friendica\Model\Contact;
  28 use Friendica\Model\Photo;
  29 use Friendica\Model\User;
  30 use Friendica\Util\DateTimeFormat;
  31
  32 /**
  33  * Expire and remove user entries
  34  */
  35 class ExpireAndRemoveUsers
  36 {
  37         public static function execute()
  38         {
  39                 // expire any expired regular accounts. Don't expire forums.
  40                 $condition = ["NOT `account_expired` AND `account_expires_on` > ? AND `account_expires_on` < ? AND `page-flags` = ? AND `uid` != ?",
  41                         DBA::NULL_DATETIME, DateTimeFormat::utcNow(), User::PAGE_FLAGS_NORMAL, 0];
  42                 DBA::update('user', ['account_expired' => true], $condition);
  43
  44                 // Ensure to never remove the user with uid=0
  45                 DBA::update('user', ['account_expired' => false, 'account_removed' => false,
  46                         'account_expires_on' => DBA::NULL_DATETIME], ['uid' => 0]);
  47
  48                 // Remove any freshly expired account
  49                 $users = DBA::select('user', ['uid'], ['account_expired' => true, 'account_removed' => false]);
  50                 while ($user = DBA::fetch($users)) {
  51                         if ($user['uid'] != 0) {
  52                                 User::remove($user['uid']);
  53                         }
  54                 }
  55                 DBA::close($users);
  56
  57                 // delete user records for recently removed accounts
  58                 $users = DBA::select('user', ['uid'], ["`account_removed` AND `account_expires_on` < ? AND `uid` != ?", DateTimeFormat::utcNow(), 0]);
  59                 while ($user = DBA::fetch($users)) {
  60                         $pcid = Contact::getPublicIdByUserId($user['uid']);
  61
  62                         Logger::info('Removing user - start', ['uid' => $user['uid'], 'pcid' => $pcid]);
  63                         // We have to delete photo entries by hand because otherwise the photo data won't be deleted
  64                         $result = Photo::delete(['uid' => $user['uid']]);
  65                         if ($result) {
  66                                 Logger::debug('Deleted user photos', ['result' => $result, 'rows' => DBA::affectedRows()]);
  67                         } else {
  68                                 Logger::warning('Error deleting user photos', ['errno' => DBA::errorNo(), 'errmsg' => DBA::errorMessage()]);
  69                         }
  70
  71                         $result = DBA::delete('post-tag', ['cid' => $pcid]);
  72                         if ($result) {
  73                                 Logger::debug('Deleted post-tag entries', ['result' => $result, 'rows' => DBA::affectedRows()]);
  74                         } else {
  75                                 Logger::warning('Error deleting post-tag entries', ['errno' => DBA::errorNo(), 'errmsg' => DBA::errorMessage()]);
  76                         }
  77
  78                         $tables = ['post', 'post-user', 'post-thread', 'post-thread-user'];
  79
  80                         if (DBStructure::existsTable('item')) {
  81                                 $tables[] = 'item';
  82                         }
  83
  84                         // Delete all entries with the public contact in post related tables
  85                         foreach ($tables as $table) {
  86                                 foreach (['owner-id', 'author-id', 'causer-id'] as $field) {
  87                                         $result = DBA::delete($table, [$field => $pcid]);
  88                                         if ($result) {
  89                                                 Logger::debug('Deleted entries', ['table' => $table, 'field' => $field, 'result' => $result, 'rows' => DBA::affectedRows()]);
  90                                         } else {
  91                                                 Logger::warning('Error deleting entries', ['table' => $table, 'field' => $field, 'errno' => DBA::errorNo(), 'errmsg' => DBA::errorMessage()]);
  92                                         }
  93                                 }
  94                         }
  95
  96                         // Delete the contacts of this user
  97                         $self = DBA::selectFirst('contact', ['nurl'], ['self' => true, 'uid' => $user['uid']]);
  98                         if (DBA::isResult($self)) {
  99                                 $result = DBA::delete('contact', ["`nurl` = ? AND NOT `self` AND `uid` != ?", $self['nurl'], 0]);
 100                                 if ($result) {
 101                                         Logger::debug('Deleted the user contact for other users', ['result' => $result, 'rows' => DBA::affectedRows()]);
 102                                 } else {
 103                                         Logger::warning('Error deleting the user contact for other users', ['errno' => DBA::errorNo(), 'errmsg' => DBA::errorMessage()]);
 104                                 }
 105                         }
 106
 107                         // Delete all contacts of this user
 108                         $result = DBA::delete('contact', ['uid' => $user['uid']]);
 109                         if ($result) {
 110                                 Logger::debug('Deleted user contacts', ['result' => $result, 'rows' => DBA::affectedRows()]);
 111                         } else {
 112                                 Logger::warning('Error deleting user contacts', ['errno' => DBA::errorNo(), 'errmsg' => DBA::errorMessage()]);
 113                         }
 114
 115                         // These tables contain the permissionset which will also be deleted when a user is deleted.
 116                         // It seems that sometimes the system wants to delete the records in the wrong order.
 117                         // So when the permissionset is deleted and these tables are still filled then an error is thrown.
 118                         // So we now delete them before all other user related entries are deleted.
 119                         if (DBStructure::existsTable('item')) {
 120                                 $result = DBA::delete('item', ['uid' => $user['uid']]);
 121                                 if ($result) {
 122                                         Logger::debug('Deleted user items', ['result' => $result, 'rows' => DBA::affectedRows()]);
 123                                 } else {
 124                                         Logger::warning('Error deleting user items', ['errno' => DBA::errorNo(), 'errmsg' => DBA::errorMessage()]);
 125                                 }
 126                         }
 127                         $result = DBA::delete('post-user', ['uid' => $user['uid']]);
 128                         if ($result) {
 129                                 Logger::debug('Deleted post-user entries', ['result' => $result, 'rows' => DBA::affectedRows()]);
 130                         } else {
 131                                 Logger::warning('Error deleting post-user entries', ['errno' => DBA::errorNo(), 'errmsg' => DBA::errorMessage()]);
 132                         }
 133
 134                         $result = DBA::delete('profile_field', ['uid' => $user['uid']]);
 135                         if ($result) {
 136                                 Logger::debug('Deleted profile_field entries', ['result' => $result, 'rows' => DBA::affectedRows()]);
 137                         } else {
 138                                 Logger::warning('Error deleting profile_field entries', ['errno' => DBA::errorNo(), 'errmsg' => DBA::errorMessage()]);
 139                         }
 140
 141                         $result = DBA::delete('user', ['uid' => $user['uid']]);
 142                         if ($result) {
 143                                 Logger::debug('Deleted user record', ['result' => $result, 'rows' => DBA::affectedRows()]);
 144                         } else {
 145                                 Logger::warning('Error deleting user record', ['errno' => DBA::errorNo(), 'errmsg' => DBA::errorMessage()]);
 146                         }
 147
 148                         Logger::info('Removing user - done', ['uid' => $user['uid']]);
 149                 }
 150                 DBA::close($users);
 151         }
 152 }