src/Protocol/ActivityPub/Queue.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\Protocol\ActivityPub;
  23
  24 use Friendica\Core\Logger;
  25 use Friendica\Database\Database;
  26 use Friendica\Database\DBA;
  27 use Friendica\Util\DateTimeFormat;
  28
  29 /**
  30  * This class handles the processing of incoming posts
  31  */
  32 class Queue
  33 {
  34         /**
  35          * Add activity to the queue
  36          *
  37          * @param array $activity
  38          * @param string $type
  39          * @param integer $uid
  40          * @param string $http_signer
  41          * @param boolean $push
  42          * @return array
  43          */
  44         public static function add(array $activity, string $type, int $uid, string $http_signer, bool $push): array
  45         {
  46                 $fields = [
  47                         'activity-id' => $activity['id'],
  48                         'object-id'   => $activity['object_id'],
  49                         'type'        => $type,
  50                         'object-type' => $activity['object_type'],
  51                         'activity'    => json_encode($activity, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT),
  52                         'received'    => DateTimeFormat::utcNow(),
  53                         'push'        => $push,
  54                 ];
  55
  56                 if (!empty($activity['reply-to-id'])) {
  57                         $fields['in-reply-to-id'] = $activity['reply-to-id'];
  58                 }
  59
  60                 if (!empty($activity['object_object_type'])) {
  61                         $fields['object-object-type'] = $activity['object_object_type'];
  62                 }
  63
  64                 if (!empty($http_signer)) {
  65                         $fields['signer'] = $http_signer;
  66                 }
  67
  68                 DBA::insert('inbox-entry', $fields, Database::INSERT_IGNORE);
  69
  70                 $queue = DBA::selectFirst('inbox-entry', ['id'], ['activity-id' => $activity['id']]);
  71                 if (!empty($queue['id'])) {
  72                         $activity['entry-id'] = $queue['id'];
  73                         DBA::insert('inbox-entry-receiver', ['queue-id' => $queue['id'], 'uid' => $uid], Database::INSERT_IGNORE);
  74                 }
  75                 return $activity;
  76         }
  77
  78         /**
  79          * Remove activity from the queue
  80          *
  81          * @param array $activity
  82          * @return void
  83          */
  84         public static function remove(array $activity = [])
  85         {
  86                 if (empty($activity['entry-id'])) {
  87                         return;
  88                 }
  89                 DBA::delete('inbox-entry', ['id' => $activity['entry-id']]);
  90         }
  91
  92         /**
  93          * Set the worker id for the queue entry
  94          *
  95          * @param array $activity
  96          * @param int   $wid
  97          * @return void
  98          */
  99         public static function setWorkerId(array $activity, int $wid)
 100         {
 101                 if (empty($activity['entry-id']) || empty($wid)) {
 102                         return;
 103                 }
 104                 DBA::update('inbox-entry', ['wid' => $wid], ['id' => $activity['entry-id']]);
 105         }
 106
 107         /**
 108          * Check if there is an assigned worker task
 109          *
 110          * @param array $activity
 111          * @return bool
 112          */
 113         public static function hasWorker(array $activity = []): bool
 114         {
 115                 if (empty($activity['worker-id'])) {
 116                         return false;
 117                 }
 118                 return DBA::exists('workerqueue', ['id' => $activity['worker-id'], 'done' => false]);
 119         }
 120
 121         /**
 122          * Process the activity with the given id
 123          *
 124          * @param integer $id
 125          * @return void
 126          */
 127         public static function process(int $id)
 128         {
 129                 $entry = DBA::selectFirst('inbox-entry', [], ['id' => $id]);
 130                 if (empty($entry)) {
 131                         return;
 132                 }
 133
 134                 Logger::debug('Processing queue entry', ['id' => $entry['id'], 'type' => $entry['type'], 'object-type' => $entry['object-type'], 'uri' => $entry['object-id'], 'in-reply-to' => $entry['in-reply-to-id']]);
 135
 136                 $activity = json_decode($entry['activity'], true);
 137                 $type     = $entry['type'];
 138                 $push     = $entry['push'];
 139
 140                 $activity['entry-id']  = $entry['id'];
 141                 $activity['worker-id'] = $entry['wid'];
 142
 143                 $receivers = DBA::select('inbox-entry-receiver', ['uid'], ['queue-id' => $entry['id']]);
 144                 while ($receiver = DBA::fetch($receivers)) {
 145                         if (!in_array($receiver['uid'], $activity['receiver'])) {
 146                                 $activity['receiver'][] = $receiver['uid'];
 147                         }
 148                 }
 149                 DBA::close($receivers);
 150
 151                 if (!Receiver::routeActivities($activity, $type, $push)) {
 152                         self::remove($activity);
 153                 }
 154         }
 155
 156         /**
 157          * Process all activities
 158          *
 159          * @return void
 160          */
 161         public static function processAll()
 162         {
 163                 $entries = DBA::select('inbox-entry', ['id', 'type', 'object-type'], [], ['order' => ['id' => true]]);
 164                 while ($entry = DBA::fetch($entries)) {
 165                         self::process($entry['id']);
 166                 }
 167         }
 168
 169         /**
 170          * Clear old activities
 171          *
 172          * @return void
 173          */
 174         public static function clear()
 175         {
 176                 DBA::delete('inbox-entry', ["`wid` IS NULL AND `received` < ?", DateTimeFormat::utc('now - 4 hours')]);
 177         }
 178
 179         /**
 180          * Process all activities that are children of a given post url
 181          *
 182          * @param string $uri
 183          * @return void
 184          */
 185         public static function processReplyByUri(string $uri)
 186         {
 187                 $entries = DBA::select('inbox-entry', ['id'], ['in-reply-to-id' => $uri], ['order' => ['id' => true]]);
 188                 while ($entry = DBA::fetch($entries)) {
 189                         self::process($entry['id']);
 190                 }
 191         }
 192 }