src/Worker/Notifier.php

   1 <?php
   2 /**
   3  * @file src/Worker/Notifier.php
   4  */
   5 namespace Friendica\Worker;
   6
   7 use Friendica\BaseObject;
   8 use Friendica\Core\Config;
   9 use Friendica\Core\Hook;
  10 use Friendica\Core\Logger;
  11 use Friendica\Core\Protocol;
  12 use Friendica\Core\Worker;
  13 use Friendica\Database\DBA;
  14 use Friendica\Model\Contact;
  15 use Friendica\Model\Conversation;
  16 use Friendica\Model\Group;
  17 use Friendica\Model\Item;
  18 use Friendica\Model\PushSubscriber;
  19 use Friendica\Model\User;
  20 use Friendica\Network\Probe;
  21 use Friendica\Protocol\ActivityPub;
  22 use Friendica\Protocol\Diaspora;
  23 use Friendica\Protocol\OStatus;
  24 use Friendica\Protocol\Salmon;
  25
  26 /*
  27  * The notifier is typically called with:
  28  *
  29  *              Worker::add(PRIORITY_HIGH, "Notifier", COMMAND, ITEM_ID);
  30  *
  31  * where COMMAND is one of the following:
  32  *
  33  *              activity                                (in diaspora.php, dfrn_confirm.php, profiles.php)
  34  *              comment-import                  (in diaspora.php, items.php)
  35  *              comment-new                             (in item.php)
  36  *              drop                                    (in diaspora.php, items.php, photos.php)
  37  *              edit_post                               (in item.php)
  38  *              event                                   (in events.php)
  39  *              like                                    (in like.php, poke.php)
  40  *              mail                                    (in message.php)
  41  *              suggest                                 (in fsuggest.php)
  42  *              tag                                             (in photos.php, poke.php, tagger.php)
  43  *              tgroup                                  (in items.php)
  44  *              wall-new                                (in photos.php, item.php)
  45  *              removeme                                (in Contact.php)
  46  *              relocate                                (in uimport.php)
  47  *
  48  * and ITEM_ID is the id of the item in the database that needs to be sent to others.
  49  */
  50
  51 class Notifier
  52 {
  53         public static function execute($cmd, $target_id)
  54         {
  55                 $a = BaseObject::getApp();
  56
  57                 Logger::log('Invoked: ' . $cmd . ': ' . $target_id, Logger::DEBUG);
  58
  59                 $top_level = false;
  60                 $recipients = [];
  61                 $url_recipients = [];
  62
  63                 $normal_mode = true;
  64                 $recipients_relocate = [];
  65                 $target_item = [];
  66                 $items = [];
  67
  68                 if ($cmd == Delivery::MAIL) {
  69                         $normal_mode = false;
  70                         $message = DBA::selectFirst('mail', ['uid', 'contact-id'], ['id' => $target_id]);
  71                         if (!DBA::isResult($message)) {
  72                                 return;
  73                         }
  74                         $uid = $message['uid'];
  75                         $recipients[] = $message['contact-id'];
  76                 } elseif ($cmd == Delivery::SUGGESTION) {
  77                         $normal_mode = false;
  78                         $suggest = DBA::selectFirst('fsuggest', ['uid', 'cid'], ['id' => $target_id]);
  79                         if (!DBA::isResult($suggest)) {
  80                                 return;
  81                         }
  82                         $uid = $suggest['uid'];
  83                         $recipients[] = $suggest['cid'];
  84                 } elseif ($cmd == Delivery::REMOVAL) {
  85                         return self::notifySelfRemoval($target_id, $a->queue['priority'], $a->queue['created']);
  86                 } elseif ($cmd == Delivery::RELOCATION) {
  87                         $normal_mode = false;
  88                         $uid = $target_id;
  89
  90                         $recipients_relocate = q("SELECT * FROM `contact` WHERE `uid` = %d AND NOT `self` AND `network` IN ('%s', '%s')",
  91                                                 intval($uid), Protocol::DFRN, Protocol::DIASPORA);
  92                 } else {
  93                         // find ancestors
  94                         $condition = ['id' => $target_id, 'visible' => true, 'moderated' => false];
  95                         $target_item = Item::selectFirst([], $condition);
  96
  97                         if (!DBA::isResult($target_item) || !intval($target_item['parent'])) {
  98                                 return;
  99                         }
 100
 101                         if (!empty($target_item['contact-uid'])) {
 102                                 $uid = $target_item['contact-uid'];
 103                         } elseif (!empty($target_item['uid'])) {
 104                                 $uid = $target_item['uid'];
 105                         } else {
 106                                 Logger::log('Only public users for item ' . $target_id, Logger::DEBUG);
 107                                 return;
 108                         }
 109
 110                         $condition = ['parent' => $target_item['parent'], 'visible' => true, 'moderated' => false];
 111                         $params = ['order' => ['id']];
 112                         $items_stmt = Item::select([], $condition, $params);
 113                         if (!DBA::isResult($items_stmt)) {
 114                                 return;
 115                         }
 116
 117                         $items = Item::inArray($items_stmt);
 118
 119                         // avoid race condition with deleting entries
 120                         if ($items[0]['deleted']) {
 121                                 foreach ($items as $item) {
 122                                         $item['deleted'] = 1;
 123                                 }
 124                         }
 125
 126                         if ((count($items) == 1) && ($items[0]['id'] === $target_item['id']) && ($items[0]['uri'] === $items[0]['parent-uri'])) {
 127                                 Logger::log('Top level post');
 128                                 $top_level = true;
 129                         }
 130                 }
 131
 132                 $owner = User::getOwnerDataById($uid);
 133                 if (!$owner) {
 134                         return;
 135                 }
 136
 137                 // Should the post be transmitted to Diaspora?
 138                 $diaspora_delivery = true;
 139
 140                 // If this is a public conversation, notify the feed hub
 141                 $public_message = true;
 142
 143                 // Do a PuSH
 144                 $push_notify = false;
 145
 146                 // Deliver directly to a forum, don't PuSH
 147                 $direct_forum_delivery = false;
 148
 149                 $followup = false;
 150                 $recipients_followup = [];
 151
 152                 if (!empty($target_item) && !empty($items)) {
 153                         $parent = $items[0];
 154
 155                         self::activityPubDelivery($cmd, $target_item, $parent, $a->queue['priority'], $a->query_string['created']);
 156
 157                         $fields = ['network', 'author-id', 'owner-id'];
 158                         $condition = ['uri' => $target_item["thr-parent"], 'uid' => $target_item["uid"]];
 159                         $thr_parent = Item::selectFirst($fields, $condition);
 160
 161                         Logger::log('GUID: ' . $target_item["guid"] . ': Parent is ' . $parent['network'] . '. Thread parent is ' . $thr_parent['network'], Logger::DEBUG);
 162
 163                         // This is IMPORTANT!!!!
 164
 165                         // We will only send a "notify owner to relay" or followup message if the referenced post
 166                         // originated on our system by virtue of having our hostname somewhere
 167                         // in the URI, AND it was a comment (not top_level) AND the parent originated elsewhere.
 168
 169                         // if $parent['wall'] == 1 we will already have the parent message in our array
 170                         // and we will relay the whole lot.
 171
 172                         $localhost = str_replace('www.','',$a->getHostName());
 173                         if (strpos($localhost,':')) {
 174                                 $localhost = substr($localhost,0,strpos($localhost,':'));
 175                         }
 176                         /**
 177                          *
 178                          * Be VERY CAREFUL if you make any changes to the following several lines. Seemingly innocuous changes
 179                          * have been known to cause runaway conditions which affected several servers, along with
 180                          * permissions issues.
 181                          *
 182                          */
 183
 184                         $relay_to_owner = false;
 185
 186                         if (!$top_level && ($parent['wall'] == 0) && (stristr($target_item['uri'],$localhost))) {
 187                                 $relay_to_owner = true;
 188                         }
 189
 190
 191                         if (($cmd === 'uplink') && (intval($parent['forum_mode']) == 1) && !$top_level) {
 192                                 $relay_to_owner = true;
 193                         }
 194
 195                         // until the 'origin' flag has been in use for several months
 196                         // we will just use it as a fallback test
 197                         // later we will be able to use it as the primary test of whether or not to relay.
 198
 199                         if (!$target_item['origin']) {
 200                                 $relay_to_owner = false;
 201                         }
 202                         if ($parent['origin']) {
 203                                 $relay_to_owner = false;
 204                         }
 205
 206                         // Special treatment for forum posts
 207                         if (self::isForumPost($target_item, $owner)) {
 208                                 $relay_to_owner = true;
 209                                 $direct_forum_delivery = true;
 210                         }
 211
 212                         // Avoid that comments in a forum thread are sent to OStatus
 213                         if (self::isForumPost($parent, $owner)) {
 214                                 $direct_forum_delivery = true;
 215                         }
 216
 217                         if ($relay_to_owner) {
 218                                 // local followup to remote post
 219                                 $followup = true;
 220                                 $public_message = false; // not public
 221                                 $recipients = [$parent['contact-id']];
 222                                 $recipients_followup  = [$parent['contact-id']];
 223
 224                                 Logger::log('Followup ' . $target_item['guid'] . ' to ' . $parent['contact-id'], Logger::DEBUG);
 225
 226                                 //if (!$target_item['private'] && $target_item['wall'] &&
 227                                 if (!$target_item['private'] &&
 228                                         (strlen($target_item['allow_cid'].$target_item['allow_gid'].
 229                                                 $target_item['deny_cid'].$target_item['deny_gid']) == 0))
 230                                         $push_notify = true;
 231
 232                                 if (($thr_parent && ($thr_parent['network'] == Protocol::OSTATUS)) || ($parent['network'] == Protocol::OSTATUS)) {
 233                                         $push_notify = true;
 234
 235                                         if ($parent["network"] == Protocol::OSTATUS) {
 236                                                 // Distribute the message to the DFRN contacts as if this wasn't a followup since OStatus can't relay comments
 237                                                 // Currently it is work at progress
 238                                                 $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `network` = '%s' AND NOT `blocked` AND NOT `pending` AND NOT `archive`",
 239                                                         intval($uid),
 240                                                         DBA::escape(Protocol::DFRN)
 241                                                 );
 242                                                 if (DBA::isResult($r)) {
 243                                                         foreach ($r as $rr) {
 244                                                                 $recipients_followup[] = $rr['id'];
 245                                                         }
 246                                                 }
 247                                         }
 248                                 }
 249
 250                                 if ($direct_forum_delivery) {
 251                                         $push_notify = false;
 252                                 }
 253
 254                                 Logger::log('Notify ' . $target_item["guid"] .' via PuSH: ' . ($push_notify ? "Yes":"No"), Logger::DEBUG);
 255                         } else {
 256                                 $followup = false;
 257
 258                                 Logger::log('Distributing directly ' . $target_item["guid"], Logger::DEBUG);
 259
 260                                 // don't send deletions onward for other people's stuff
 261
 262                                 if ($target_item['deleted'] && !intval($target_item['wall'])) {
 263                                         Logger::log('Ignoring delete notification for non-wall item');
 264                                         return;
 265                                 }
 266
 267                                 if (strlen($parent['allow_cid'])
 268                                         || strlen($parent['allow_gid'])
 269                                         || strlen($parent['deny_cid'])
 270                                         || strlen($parent['deny_gid'])) {
 271                                         $public_message = false; // private recipients, not public
 272                                 }
 273
 274                                 $allow_people = expand_acl($parent['allow_cid']);
 275                                 $allow_groups = Group::expand(expand_acl($parent['allow_gid']),true);
 276                                 $deny_people  = expand_acl($parent['deny_cid']);
 277                                 $deny_groups  = Group::expand(expand_acl($parent['deny_gid']));
 278
 279                                 // if our parent is a public forum (forum_mode == 1), uplink to the origional author causing
 280                                 // a delivery fork. private groups (forum_mode == 2) do not uplink
 281
 282                                 if ((intval($parent['forum_mode']) == 1) && !$top_level && ($cmd !== 'uplink')) {
 283                                         Worker::add($a->queue['priority'], 'Notifier', 'uplink', $target_id);
 284                                 }
 285
 286                                 foreach ($items as $item) {
 287                                         $recipients[] = $item['contact-id'];
 288                                         // pull out additional tagged people to notify (if public message)
 289                                         if ($public_message && strlen($item['inform'])) {
 290                                                 $people = explode(',',$item['inform']);
 291                                                 foreach ($people as $person) {
 292                                                         if (substr($person,0,4) === 'cid:') {
 293                                                                 $recipients[] = intval(substr($person,4));
 294                                                         } else {
 295                                                                 $url_recipients[] = substr($person,4);
 296                                                         }
 297                                                 }
 298                                         }
 299                                 }
 300
 301                                 if (count($url_recipients)) {
 302                                         Logger::log('Deliver ' . $target_item["guid"] . ' to _recipients ' . json_encode($url_recipients));
 303                                 }
 304
 305                                 $recipients = array_unique(array_merge($recipients, $allow_people, $allow_groups));
 306                                 $deny = array_unique(array_merge($deny_people, $deny_groups));
 307                                 $recipients = array_diff($recipients, $deny);
 308                         }
 309
 310                         // If the thread parent is OStatus then do some magic to distribute the messages.
 311                         // We have not only to look at the parent, since it could be a Friendica thread.
 312                         if (($thr_parent && ($thr_parent['network'] == Protocol::OSTATUS)) || ($parent['network'] == Protocol::OSTATUS)) {
 313                                 $diaspora_delivery = false;
 314
 315                                 Logger::log('Some parent is OStatus for '.$target_item["guid"]." - Author: ".$thr_parent['author-id']." - Owner: ".$thr_parent['owner-id'], Logger::DEBUG);
 316
 317                                 // Send a salmon to the parent author
 318                                 $probed_contact = DBA::selectFirst('contact', ['url', 'notify'], ['id' => $thr_parent['author-id']]);
 319                                 if (DBA::isResult($probed_contact) && !empty($probed_contact["notify"])) {
 320                                         Logger::log('Notify parent author '.$probed_contact["url"].': '.$probed_contact["notify"]);
 321                                         $url_recipients[$probed_contact["notify"]] = $probed_contact["notify"];
 322                                 }
 323
 324                                 // Send a salmon to the parent owner
 325                                 $probed_contact = DBA::selectFirst('contact', ['url', 'notify'], ['id' => $thr_parent['owner-id']]);
 326                                 if (DBA::isResult($probed_contact) && !empty($probed_contact["notify"])) {
 327                                         Logger::log('Notify parent owner '.$probed_contact["url"].': '.$probed_contact["notify"]);
 328                                         $url_recipients[$probed_contact["notify"]] = $probed_contact["notify"];
 329                                 }
 330
 331                                 // Send a salmon notification to every person we mentioned in the post
 332                                 $arr = explode(',',$target_item['tag']);
 333                                 foreach ($arr as $x) {
 334                                         //Logger::log('Checking tag '.$x, Logger::DEBUG);
 335                                         $matches = null;
 336                                         if (preg_match('/@\[url=([^\]]*)\]/',$x,$matches)) {
 337                                                         $probed_contact = Probe::uri($matches[1]);
 338                                                 if ($probed_contact["notify"] != "") {
 339                                                         Logger::log('Notify mentioned user '.$probed_contact["url"].': '.$probed_contact["notify"]);
 340                                                         $url_recipients[$probed_contact["notify"]] = $probed_contact["notify"];
 341                                                 }
 342                                         }
 343                                 }
 344
 345                                 // It only makes sense to distribute answers to OStatus messages to Friendica and OStatus - but not Diaspora
 346                                 $networks = [Protocol::OSTATUS, Protocol::DFRN];
 347                         } else {
 348                                 $networks = [Protocol::OSTATUS, Protocol::DFRN, Protocol::DIASPORA, Protocol::MAIL];
 349                         }
 350                 } else {
 351                         $public_message = false;
 352                 }
 353
 354                 // If this is a public message and pubmail is set on the parent, include all your email contacts
 355                 if (!empty($target_item) && function_exists('imap_open') && !Config::get('system','imap_disabled')) {
 356                         if (!strlen($target_item['allow_cid']) && !strlen($target_item['allow_gid'])
 357                                 && !strlen($target_item['deny_cid']) && !strlen($target_item['deny_gid'])
 358                                 && intval($target_item['pubmail'])) {
 359                                 $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `network` = '%s'",
 360                                         intval($uid),
 361                                         DBA::escape(Protocol::MAIL)
 362                                 );
 363                                 if (DBA::isResult($r)) {
 364                                         foreach ($r as $rr) {
 365                                                 $recipients[] = $rr['id'];
 366                                         }
 367                                 }
 368                         }
 369                 }
 370
 371                 if ($cmd == Delivery::RELOCATION) {
 372                         $contacts = $recipients_relocate;
 373                 } else {
 374                         if ($followup) {
 375                                 $recipients = $recipients_followup;
 376                         }
 377                         $condition = ['id' => $recipients, 'self' => false,
 378                                 'blocked' => false, 'pending' => false, 'archive' => false];
 379                         if (!empty($networks)) {
 380                                 $condition['network'] = $networks;
 381                         }
 382                         $result = DBA::select('contact', ['id', 'url', 'network', 'batch'], $condition);
 383                         $contacts = DBA::toArray($result);
 384                 }
 385
 386                 $conversants = [];
 387                 $batch_delivery = false;
 388
 389                 if ($public_message && !in_array($cmd, [Delivery::MAIL, Delivery::SUGGESTION]) && !$followup) {
 390                         $r1 = [];
 391
 392                         if ($diaspora_delivery) {
 393                                 $batch_delivery = true;
 394
 395                                 $r1 = q("SELECT `batch`, ANY_VALUE(`id`) AS `id`, ANY_VALUE(`name`) AS `name`, ANY_VALUE(`network`) AS `network`
 396                                         FROM `contact` WHERE `network` = '%s' AND `batch` != ''
 397                                         AND `uid` = %d AND `rel` != %d AND NOT `blocked` AND NOT `pending` AND NOT `archive` GROUP BY `batch`",
 398                                         DBA::escape(Protocol::DIASPORA),
 399                                         intval($owner['uid']),
 400                                         intval(Contact::SHARING)
 401                                 );
 402
 403                                 // Fetch the participation list
 404                                 // The function will ensure that there are no duplicates
 405                                 $r1 = Diaspora::participantsForThread($target_id, $r1);
 406
 407                                 // Add the relay to the list, avoid duplicates.
 408                                 // Don't send community posts to the relay. Forum posts via the Diaspora protocol are looking ugly.
 409                                 if (!$followup && !self::isForumPost($target_item, $owner)) {
 410                                         $r1 = Diaspora::relayList($target_id, $r1);
 411                                 }
 412                         }
 413
 414                         $condition = ['network' => Protocol::DFRN, 'uid' => $owner['uid'], 'blocked' => false,
 415                                 'pending' => false, 'archive' => false, 'rel' => [Contact::FOLLOWER, Contact::FRIEND]];
 416
 417                         $r2 = DBA::toArray(DBA::select('contact', ['id', 'name', 'network'], $condition));
 418
 419                         $r = array_merge($r2, $r1);
 420
 421                         if (DBA::isResult($r)) {
 422                                 foreach ($r as $rr) {
 423                                         $conversants[] = $rr['id'];
 424                                         Logger::log('Public delivery of item ' . $target_item["guid"] . ' (' . $target_id . ') to ' . json_encode($rr), Logger::DEBUG);
 425
 426                                         // Ensure that posts with our own protocol arrives before Diaspora posts arrive.
 427                                         // Situation is that sometimes Friendica servers receive Friendica posts over the Diaspora protocol first.
 428                                         // The conversion in Markdown reduces the formatting, so these posts should arrive after the Friendica posts.
 429                                         if ($rr['network'] == Protocol::DIASPORA) {
 430                                                 $deliver_options = ['priority' => $a->queue['priority'], 'dont_fork' => true];
 431                                         } else {
 432                                                 $deliver_options = ['priority' => $a->queue['priority'], 'created' => $a->queue['created'], 'dont_fork' => true];
 433                                         }
 434                                         Worker::add($deliver_options, 'Delivery', $cmd, $target_id, (int)$rr['id']);
 435                                 }
 436                         }
 437
 438                         $push_notify = true;
 439                 }
 440
 441                 // delivery loop
 442                 if (DBA::isResult($contacts)) {
 443                         foreach ($contacts as $contact) {
 444                                 // Don't deliver to Diaspora if it already had been done as batch delivery
 445                                 if (($contact['network'] == Protocol::DIASPORA) && $batch_delivery) {
 446                                         Logger::log('Already delivered  id ' . $target_id . ' via batch to ' . json_encode($contact), Logger::DEBUG);
 447                                         continue;
 448                                 }
 449
 450                                 // Don't deliver to folks who have already been delivered to
 451                                 if (in_array($contact['id'], $conversants)) {
 452                                         Logger::log('Already delivered id ' . $target_id. ' to ' . json_encode($contact), Logger::DEBUG);
 453                                         continue;
 454                                 }
 455
 456                                 Logger::log('Delivery of item ' . $target_id . ' to ' . json_encode($contact), Logger::DEBUG);
 457
 458                                 // Ensure that posts with our own protocol arrives before Diaspora posts arrive.
 459                                 // Situation is that sometimes Friendica servers receive Friendica posts over the Diaspora protocol first.
 460                                 // The conversion in Markdown reduces the formatting, so these posts should arrive after the Friendica posts.
 461                                 if ($contact['network'] == Protocol::DIASPORA) {
 462                                         $deliver_options = ['priority' => $a->queue['priority'], 'dont_fork' => true];
 463                                 } else {
 464                                         $deliver_options = ['priority' => $a->queue['priority'], 'created' => $a->queue['created'], 'dont_fork' => true];
 465                                 }
 466                                 Worker::add($deliver_options, 'Delivery', $cmd, $target_id, (int)$contact['id']);
 467                         }
 468                 }
 469
 470                 // send salmon slaps to mentioned remote tags (@foo@example.com) in OStatus posts
 471                 // They are especially used for notifications to OStatus users that don't follow us.
 472                 if (!Config::get('system', 'dfrn_only') && count($url_recipients) && ($public_message || $push_notify) && $normal_mode) {
 473                         $slap = OStatus::salmon($target_item, $owner);
 474                         foreach ($url_recipients as $url) {
 475                                 if ($url) {
 476                                         Logger::log('Salmon delivery of item ' . $target_id . ' to ' . $url);
 477                                         /// @TODO Redeliver/queue these items on failure, though there is no contact record
 478                                         Salmon::slapper($owner, $url, $slap);
 479                                 }
 480                         }
 481                 }
 482
 483                 // Notify PuSH subscribers (Used for OStatus distribution of regular posts)
 484                 if ($push_notify) {
 485                         Logger::log('Activating internal PuSH for item '.$target_id, Logger::DEBUG);
 486
 487                         // Handling the pubsubhubbub requests
 488                         PushSubscriber::publishFeed($owner['uid'], $a->queue['priority']);
 489                 }
 490
 491                 Logger::log('Calling hooks for ' . $cmd . ' ' . $target_id, Logger::DEBUG);
 492
 493                 if ($normal_mode) {
 494                         Hook::fork($a->queue['priority'], 'notifier_normal', $target_item);
 495                 }
 496
 497                 Hook::callAll('notifier_end',$target_item);
 498
 499                 return;
 500         }
 501
 502         /**
 503          * @param int    $self_user_id
 504          * @param int    $priority     The priority the Notifier queue item was created with
 505          * @param string $created      The date the Notifier queue item was created on
 506          * @return bool
 507          */
 508         private static function notifySelfRemoval($self_user_id, $priority, $created)
 509         {
 510                 $owner = User::getOwnerDataById($self_user_id);
 511                 if (!$owner) {
 512                         return false;
 513                 }
 514
 515                 $contacts_stmt = DBA::select('contact', [], ['self' => false, 'uid' => $self_user_id]);
 516                 if (!DBA::isResult($contacts_stmt)) {
 517                         return false;
 518                 }
 519
 520                 while($contact = DBA::fetch($contacts_stmt)) {
 521                         Contact::terminateFriendship($owner, $contact, true);
 522                 }
 523
 524                 $inboxes = ActivityPub\Transmitter::fetchTargetInboxesforUser(0);
 525                 foreach ($inboxes as $inbox) {
 526                         Logger::log('Account removal for user ' . $self_user_id . ' to ' . $inbox .' via ActivityPub', Logger::DEBUG);
 527                         Worker::add(['priority' => PRIORITY_NEGLIGIBLE, 'created' => $created, 'dont_fork' => true],
 528                                 'APDelivery', Delivery::REMOVAL, '', $inbox, $self_user_id);
 529                 }
 530
 531                 return true;
 532         }
 533
 534         /**
 535          * @param string $cmd
 536          * @param array  $target_item
 537          * @param array  $parent
 538          * @param int    $priority    The priority the Notifier queue item was created with
 539          * @param string $created     The date the Notifier queue item was created on
 540          */
 541         private static function activityPubDelivery($cmd, array $target_item, array $parent, $priority, $created)
 542         {
 543                 $inboxes = [];
 544
 545                 if ($target_item['origin']) {
 546                         $inboxes = ActivityPub\Transmitter::fetchTargetInboxes($target_item, $target_item['contact-uid']);
 547                         Logger::log('Origin item ' . $target_item['id'] . ' with URL ' . $target_item['uri'] . ' will be distributed.', Logger::DEBUG);
 548                 } elseif (!DBA::exists('conversation', ['item-uri' => $target_item['uri'], 'protocol' => Conversation::PARCEL_ACTIVITYPUB])) {
 549                         Logger::log('Remote item ' . $target_item['id'] . ' with URL ' . $target_item['uri'] . ' is no AP post. It will not be distributed.', Logger::DEBUG);
 550                         return;
 551                 } elseif ($parent['origin']) {
 552                         // Remote items are transmitted via the personal inboxes.
 553                         // Doing so ensures that the dedicated receiver will get the message.
 554                         $inboxes = ActivityPub\Transmitter::fetchTargetInboxes($parent, $target_item['contact-uid'], true, $target_item['id']);
 555                         Logger::log('Remote item ' . $target_item['id'] . ' with URL ' . $target_item['uri'] . ' will be distributed.', Logger::DEBUG);
 556                 }
 557
 558                 if (empty($inboxes)) {
 559                         Logger::log('No inboxes found for item ' . $target_item['id'] . ' with URL ' . $target_item['uri'] . '. It will not be distributed.', Logger::DEBUG);
 560                         return;
 561                 }
 562
 563                 // Fill the item cache
 564                 ActivityPub\Transmitter::createCachedActivityFromItem($target_item['id'], true);
 565
 566                 foreach ($inboxes as $inbox) {
 567                         Logger::log('Deliver ' . $target_item['id'] .' to ' . $inbox .' via ActivityPub', Logger::DEBUG);
 568
 569                         Worker::add(['priority' => $priority, 'created' => $created, 'dont_fork' => true],
 570                                         'APDelivery', $cmd, $target_item['id'], $inbox, $target_item['contact-uid']);
 571                 }
 572         }
 573
 574         private static function isForumPost(array $item, array $owner)
 575         {
 576                 if (($item['author-id'] == $item['owner-id']) ||
 577                         ($owner['id'] == $item['contact-id']) ||
 578                         ($item['uri'] != $item['parent-uri'])) {
 579                         return false;
 580                 }
 581
 582                 $fields = ['forum', 'prv'];
 583                 $condition = ['id' => $item['contact-id']];
 584                 $contact = DBA::selectFirst('contact', $fields, $condition);
 585                 if (!DBA::isResult($contact)) {
 586                         // Should never happen
 587                         return false;
 588                 }
 589
 590                 // Is the post from a forum?
 591                 return ($contact['forum'] || $contact['prv']);
 592         }
 593 }