src/Worker/MergeContact.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2022, 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
  29 class MergeContact
  30 {
  31         /**
  32          * Replace all occurences of the given contact id and replace it
  33          *
  34          * @param integer $new_cid New contact id
  35          * @param integer $old_cid Old contact id
  36          * @param integer $uid User id
  37          */
  38         public static function execute(int $new_cid, int $old_cid, int $uid)
  39         {
  40                 if (empty($new_cid) || empty($old_cid) || ($new_cid == $old_cid)) {
  41                         // Invalid request
  42                         return;
  43                 }
  44
  45                 Logger::info('Handling duplicate', ['search' => $old_cid, 'replace' => $new_cid]);
  46
  47                 foreach (['item', 'thread', 'post-user', 'post-thread-user'] as $table) {
  48                         if (DBStructure::existsTable($table)) {
  49                                 DBA::update($table, ['contact-id' => $new_cid], ['contact-id' => $old_cid]);
  50                         }
  51                 }
  52                 DBA::update('mail', ['contact-id' => $new_cid], ['contact-id' => $old_cid]);
  53                 DBA::update('photo', ['contact-id' => $new_cid], ['contact-id' => $old_cid]);
  54                 DBA::update('event', ['cid' => $new_cid], ['cid' => $old_cid]);
  55
  56                 // These fields only contain public contact entries (uid = 0)
  57                 if ($uid == 0) {
  58                         DBA::update('post-tag', ['cid' => $new_cid], ['cid' => $old_cid]);
  59                         DBA::delete('post-tag', ['cid' => $old_cid]);
  60                         foreach (['item', 'post', 'post-thread', 'post-user', 'post-thread-user'] as $table) {
  61                                 if (DBStructure::existsTable($table)) {
  62                                         DBA::update($table, ['author-id' => $new_cid], ['author-id' => $old_cid]);
  63                                         DBA::update($table, ['owner-id' => $new_cid], ['owner-id' => $old_cid]);
  64                                         DBA::update($table, ['causer-id' => $new_cid], ['causer-id' => $old_cid]);
  65                                 }
  66                         }
  67                         if (DBStructure::existsTable('thread')) {
  68                                 DBA::update('thread', ['author-id' => $new_cid], ['author-id' => $old_cid]);
  69                                 DBA::update('thread', ['owner-id' => $new_cid], ['owner-id' => $old_cid]);
  70                         }
  71                 } else {
  72                         self::mergePersonalContacts($new_cid, $old_cid);
  73                 }
  74
  75                 // Remove the duplicate
  76                 Contact::deleteById($old_cid);
  77         }
  78
  79         /**
  80          * Merge important fields between two contacts
  81          *
  82          * @param integer $first
  83          * @param integer $duplicate
  84          * @return void
  85          */
  86         private static function mergePersonalContacts(int $first, int $duplicate)
  87         {
  88                 $fields = ['self', 'remote_self', 'rel', 'prvkey', 'subhub', 'hub-verify', 'priority', 'writable', 'archive', 'pending',
  89                         'rating', 'notify_new_posts', 'fetch_further_information', 'ffi_keyword_denylist', 'block_reason'];
  90                 $c1 = Contact::getById($first, $fields);
  91                 $c2 = Contact::getById($duplicate, $fields);
  92
  93                 $ctarget = $c1;
  94
  95                 if ($c1['self'] || $c2['self']) {
  96                         return;
  97                 }
  98
  99                 $ctarget['rel'] = $c1['rel'] | $c2['rel'];
 100                 foreach (['prvkey', 'hub-verify', 'priority', 'rating', 'fetch_further_information', 'ffi_keyword_denylist', 'block_reason'] as $field) {
 101                         $ctarget[$field] = $c1[$field] ?: $c2[$field];
 102                 }
 103
 104                 foreach (['remote_self', 'subhub', 'writable', 'notify_new_posts'] as $field) {
 105                         $ctarget[$field] = $c1[$field] || $c2[$field];
 106                 }
 107
 108                 foreach (['archive', 'pending'] as $field) {
 109                         $ctarget[$field] = $c1[$field] && $c2[$field];
 110                 }
 111
 112                 $data = [];
 113
 114                 foreach ($fields as $field) {
 115                         if ($ctarget[$field] != $c1[$field]) {
 116                                 $data[$field] = $ctarget[$field];
 117                         }
 118                 }
 119
 120                 if (empty($data)) {
 121                         return;
 122                 }
 123                 Contact::update($data, ['id' => $first]);
 124         }
 125 }