include/notifier.php

   1 <?php
   2
   3 use Friendica\App;
   4 use Friendica\Core\Config;
   5 use Friendica\Core\Worker;
   6 use Friendica\Database\DBM;
   7 use Friendica\Network\Probe;
   8 use Friendica\Protocol\Diaspora;
   9
  10 require_once 'include/queue_fn.php';
  11 require_once 'include/html2plain.php';
  12 require_once 'include/ostatus.php';
  13 require_once 'include/salmon.php';
  14
  15 /*
  16  * This file was at one time responsible for doing all deliveries, but this caused
  17  * big problems when the process was killed or stalled during the delivery process.
  18  * It now invokes separate queues that are delivering via delivery.php and pubsubpublish.php.
  19  */
  20
  21 /*
  22  * The notifier is typically called with:
  23  *
  24  *              Worker::add(PRIORITY_HIGH, "notifier", COMMAND, ITEM_ID);
  25  *
  26  * where COMMAND is one of the following:
  27  *
  28  *              activity                                (in diaspora.php, dfrn_confirm.php, profiles.php)
  29  *              comment-import                  (in diaspora.php, items.php)
  30  *              comment-new                             (in item.php)
  31  *              drop                                    (in diaspora.php, items.php, photos.php)
  32  *              edit_post                               (in item.php)
  33  *              event                                   (in events.php)
  34  *              expire                                  (in items.php)
  35  *              like                                    (in like.php, poke.php)
  36  *              mail                                    (in message.php)
  37  *              suggest                                 (in fsuggest.php)
  38  *              tag                                             (in photos.php, poke.php, tagger.php)
  39  *              tgroup                                  (in items.php)
  40  *              wall-new                                (in photos.php, item.php)
  41  *              removeme                                (in Contact.php)
  42  *              relocate                                (in uimport.php)
  43  *
  44  * and ITEM_ID is the id of the item in the database that needs to be sent to others.
  45  */
  46
  47
  48 function notifier_run(&$argv, &$argc){
  49         global $a;
  50
  51         require_once 'include/datetime.php';
  52         require_once 'include/items.php';
  53         require_once 'include/bbcode.php';
  54         require_once 'include/email.php';
  55
  56         if ($argc < 3) {
  57                 return;
  58         }
  59
  60         logger('notifier: invoked: ' . print_r($argv,true), LOGGER_DEBUG);
  61
  62         $cmd = $argv[1];
  63
  64         switch($cmd) {
  65                 case 'mail':
  66                 default:
  67                         $item_id = intval($argv[2]);
  68                         if (! $item_id) {
  69                                 return;
  70                         }
  71                         break;
  72         }
  73
  74         $expire = false;
  75         $mail = false;
  76         $fsuggest = false;
  77         $relocate = false;
  78         $top_level = false;
  79         $recipients = array();
  80         $url_recipients = array();
  81
  82         $normal_mode = true;
  83
  84         if ($cmd === 'mail') {
  85                 $normal_mode = false;
  86                 $mail = true;
  87                 $message = q("SELECT * FROM `mail` WHERE `id` = %d LIMIT 1",
  88                                 intval($item_id)
  89                 );
  90                 if (! count($message)) {
  91                         return;
  92                 }
  93                 $uid = $message[0]['uid'];
  94                 $recipients[] = $message[0]['contact-id'];
  95                 $item = $message[0];
  96
  97         } elseif ($cmd === 'expire') {
  98                 $normal_mode = false;
  99                 $expire = true;
 100                 $items = q("SELECT * FROM `item` WHERE `uid` = %d AND `wall` = 1
 101                         AND `deleted` = 1 AND `changed` > UTC_TIMESTAMP() - INTERVAL 10 MINUTE",
 102                         intval($item_id)
 103                 );
 104                 $uid = $item_id;
 105                 $item_id = 0;
 106                 if (! count($items)) {
 107                         return;
 108                 }
 109         } elseif ($cmd === 'suggest') {
 110                 $normal_mode = false;
 111                 $fsuggest = true;
 112
 113                 $suggest = q("SELECT * FROM `fsuggest` WHERE `id` = %d LIMIT 1",
 114                         intval($item_id)
 115                 );
 116                 if (! count($suggest)) {
 117                         return;
 118                 }
 119                 $uid = $suggest[0]['uid'];
 120                 $recipients[] = $suggest[0]['cid'];
 121                 $item = $suggest[0];
 122         } elseif ($cmd === 'removeme') {
 123                 $r = q("SELECT `contact`.*, `user`.`pubkey` AS `upubkey`, `user`.`prvkey` AS `uprvkey`,
 124                                 `user`.`timezone`, `user`.`nickname`, `user`.`sprvkey`, `user`.`spubkey`,
 125                                 `user`.`page-flags`, `user`.`prvnets`, `user`.`account-type`, `user`.`guid`
 126                         FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
 127                                 WHERE `contact`.`uid` = %d AND `contact`.`self` LIMIT 1",
 128                                 intval($item_id));
 129                 if (!$r)
 130                         return;
 131
 132                 $user = $r[0];
 133
 134                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` LIMIT 1", intval($item_id));
 135                 if (!$r)
 136                         return;
 137
 138                 $self = $r[0];
 139
 140                 $r = q("SELECT * FROM `contact` WHERE NOT `self` AND `uid` = %d", intval($item_id));
 141                 if (!$r) {
 142                         return;
 143                 }
 144                 require_once 'include/Contact.php';
 145                 foreach ($r as $contact) {
 146                         terminate_friendship($user, $self, $contact);
 147                 }
 148                 return;
 149         } elseif ($cmd === 'relocate') {
 150                 $normal_mode = false;
 151                 $relocate = true;
 152                 $uid = $item_id;
 153
 154                 $recipients_relocate = q("SELECT * FROM `contact` WHERE `uid` = %d AND NOT `self` AND `network` IN ('%s', '%s')",
 155                                         intval($uid), NETWORK_DFRN, NETWORK_DIASPORA);
 156         } else {
 157                 // find ancestors
 158                 $r = q("SELECT * FROM `item` WHERE `id` = %d AND visible = 1 AND moderated = 0 LIMIT 1",
 159                         intval($item_id)
 160                 );
 161
 162                 if ((! DBM::is_result($r)) || (! intval($r[0]['parent']))) {
 163                         return;
 164                 }
 165
 166                 $target_item = $r[0];
 167                 $parent_id = intval($r[0]['parent']);
 168                 $uid = $r[0]['uid'];
 169                 $updated = $r[0]['edited'];
 170
 171                 $items = q("SELECT `item`.*, `sign`.`signed_text`,`sign`.`signature`,`sign`.`signer`
 172                         FROM `item` LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id` WHERE `parent` = %d AND visible = 1 AND moderated = 0 ORDER BY `id` ASC",
 173                         intval($parent_id)
 174                 );
 175
 176                 if (! count($items)) {
 177                         return;
 178                 }
 179
 180                 // avoid race condition with deleting entries
 181
 182                 if ($items[0]['deleted']) {
 183                         foreach ($items as $item) {
 184                                 $item['deleted'] = 1;
 185                         }
 186                 }
 187
 188                 if ((count($items) == 1) && ($items[0]['id'] === $target_item['id']) && ($items[0]['uri'] === $items[0]['parent-uri'])) {
 189                         logger('notifier: top level post');
 190                         $top_level = true;
 191                 }
 192
 193         }
 194
 195         $r = q("SELECT `contact`.*, `user`.`pubkey` AS `upubkey`, `user`.`prvkey` AS `uprvkey`,
 196                 `user`.`timezone`, `user`.`nickname`, `user`.`sprvkey`, `user`.`spubkey`,
 197                 `user`.`page-flags`, `user`.`prvnets`, `user`.`account-type`
 198                 FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
 199                 WHERE `contact`.`uid` = %d AND `contact`.`self` = 1 LIMIT 1",
 200                 intval($uid)
 201         );
 202
 203         if (! DBM::is_result($r)) {
 204                 return;
 205         }
 206
 207         $owner = $r[0];
 208
 209         $walltowall = ((($top_level) && ($owner['id'] != $items[0]['contact-id'])) ? true : false);
 210
 211         // Should the post be transmitted to Diaspora?
 212         $diaspora_delivery = true;
 213
 214         // If this is a public conversation, notify the feed hub
 215         $public_message = true;
 216
 217         // Do a PuSH
 218         $push_notify = false;
 219
 220         // Deliver directly to a forum, don't PuSH
 221         $direct_forum_delivery = false;
 222
 223         // fill this in with a single salmon slap if applicable
 224         $slap = '';
 225
 226         if (! ($mail || $fsuggest || $relocate)) {
 227
 228                 $slap = ostatus::salmon($target_item,$owner);
 229
 230                 require_once 'include/group.php';
 231
 232                 $parent = $items[0];
 233
 234                 $thr_parent = q("SELECT `network`, `author-link`, `owner-link` FROM `item` WHERE `uri` = '%s' AND `uid` = %d",
 235                         dbesc($target_item["thr-parent"]), intval($target_item["uid"]));
 236
 237                 logger('GUID: '.$target_item["guid"].': Parent is '.$parent['network'].'. Thread parent is '.$thr_parent[0]['network'], LOGGER_DEBUG);
 238
 239                 // This is IMPORTANT!!!!
 240
 241                 // We will only send a "notify owner to relay" or followup message if the referenced post
 242                 // originated on our system by virtue of having our hostname somewhere
 243                 // in the URI, AND it was a comment (not top_level) AND the parent originated elsewhere.
 244
 245                 // if $parent['wall'] == 1 we will already have the parent message in our array
 246                 // and we will relay the whole lot.
 247
 248                 // expire sends an entire group of expire messages and cannot be forwarded.
 249                 // However the conversation owner will be a part of the conversation and will
 250                 // be notified during this run.
 251                 // Other DFRN conversation members will be alerted during polled updates.
 252
 253
 254
 255                 // Diaspora members currently are not notified of expirations, and other networks have
 256                 // either limited or no ability to process deletions. We should at least fix Diaspora
 257                 // by stringing togther an array of retractions and sending them onward.
 258
 259
 260                 $localhost = str_replace('www.','',$a->get_hostname());
 261                 if (strpos($localhost,':')) {
 262                         $localhost = substr($localhost,0,strpos($localhost,':'));
 263                 }
 264                 /**
 265                  *
 266                  * Be VERY CAREFUL if you make any changes to the following several lines. Seemingly innocuous changes
 267                  * have been known to cause runaway conditions which affected several servers, along with
 268                  * permissions issues.
 269                  *
 270                  */
 271
 272                 $relay_to_owner = false;
 273
 274                 if (!$top_level && ($parent['wall'] == 0) && !$expire && (stristr($target_item['uri'],$localhost))) {
 275                         $relay_to_owner = true;
 276                 }
 277
 278
 279                 if (($cmd === 'uplink') && (intval($parent['forum_mode']) == 1) && !$top_level) {
 280                         $relay_to_owner = true;
 281                 }
 282
 283                 // until the 'origin' flag has been in use for several months
 284                 // we will just use it as a fallback test
 285                 // later we will be able to use it as the primary test of whether or not to relay.
 286
 287                 if (! $target_item['origin']) {
 288                         $relay_to_owner = false;
 289                 }
 290                 if ($parent['origin']) {
 291                         $relay_to_owner = false;
 292                 }
 293
 294                 // Special treatment for forum posts
 295                 if (($target_item['author-link'] != $target_item['owner-link']) &&
 296                         ($owner['id'] != $target_item['contact-id']) &&
 297                         ($target_item['uri'] === $target_item['parent-uri'])) {
 298
 299                         $fields = array('forum', 'prv');
 300                         $condition = array('id' => $target_item['contact-id']);
 301                         $contact = dba::select('contact', $fields, $condition, array('limit' => 1));
 302                         if (!DBM::is_result($contact)) {
 303                                 // Should never happen
 304                                 return false;
 305                         }
 306
 307                         // Is the post from a forum?
 308                         if ($contact['forum'] || $contact['prv']) {
 309                                 $relay_to_owner = true;
 310                                 $direct_forum_delivery = true;
 311                         }
 312                 }
 313                 if ($relay_to_owner) {
 314                         logger('notifier: followup '.$target_item["guid"], LOGGER_DEBUG);
 315                         // local followup to remote post
 316                         $followup = true;
 317                         $public_message = false; // not public
 318                         $conversant_str = dbesc($parent['contact-id']);
 319                         $recipients = array($parent['contact-id']);
 320                         $recipients_followup  = array($parent['contact-id']);
 321
 322                         //if (!$target_item['private'] && $target_item['wall'] &&
 323                         if (!$target_item['private'] &&
 324                                 (strlen($target_item['allow_cid'].$target_item['allow_gid'].
 325                                         $target_item['deny_cid'].$target_item['deny_gid']) == 0))
 326                                 $push_notify = true;
 327
 328                         if (($thr_parent && ($thr_parent[0]['network'] == NETWORK_OSTATUS)) || ($parent['network'] == NETWORK_OSTATUS)) {
 329
 330                                 $push_notify = true;
 331
 332                                 if ($parent["network"] == NETWORK_OSTATUS) {
 333                                         // Distribute the message to the DFRN contacts as if this wasn't a followup since OStatus can't relay comments
 334                                         // Currently it is work at progress
 335                                         $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `network` = '%s' AND NOT `blocked` AND NOT `pending` AND NOT `archive`",
 336                                                 intval($uid),
 337                                                 dbesc(NETWORK_DFRN)
 338                                         );
 339                                         if (DBM::is_result($r)) {
 340                                                 foreach ($r as $rr) {
 341                                                         $recipients_followup[] = $rr['id'];
 342                                                 }
 343                                         }
 344                                 }
 345                         }
 346
 347                         if ($direct_forum_delivery) {
 348                                 $push_notify = false;
 349                         }
 350
 351                         logger("Notify ".$target_item["guid"]." via PuSH: ".($push_notify?"Yes":"No"), LOGGER_DEBUG);
 352                 } else {
 353                         $followup = false;
 354
 355                         logger('Distributing directly '.$target_item["guid"], LOGGER_DEBUG);
 356
 357                         // don't send deletions onward for other people's stuff
 358
 359                         if ($target_item['deleted'] && (! intval($target_item['wall']))) {
 360                                 logger('notifier: ignoring delete notification for non-wall item');
 361                                 return;
 362                         }
 363
 364                         if ((strlen($parent['allow_cid']))
 365                                 || (strlen($parent['allow_gid']))
 366                                 || (strlen($parent['deny_cid']))
 367                                 || (strlen($parent['deny_gid']))) {
 368                                 $public_message = false; // private recipients, not public
 369                         }
 370
 371                         $allow_people = expand_acl($parent['allow_cid']);
 372                         $allow_groups = expand_groups(expand_acl($parent['allow_gid']),true);
 373                         $deny_people  = expand_acl($parent['deny_cid']);
 374                         $deny_groups  = expand_groups(expand_acl($parent['deny_gid']));
 375
 376                         // if our parent is a public forum (forum_mode == 1), uplink to the origional author causing
 377                         // a delivery fork. private groups (forum_mode == 2) do not uplink
 378
 379                         if ((intval($parent['forum_mode']) == 1) && (! $top_level) && ($cmd !== 'uplink')) {
 380                                 Worker::add($a->queue['priority'], 'notifier', 'uplink', $item_id);
 381                         }
 382
 383                         $conversants = array();
 384
 385                         foreach ($items as $item) {
 386                                 $recipients[] = $item['contact-id'];
 387                                 $conversants[] = $item['contact-id'];
 388                                 // pull out additional tagged people to notify (if public message)
 389                                 if ($public_message && strlen($item['inform'])) {
 390                                         $people = explode(',',$item['inform']);
 391                                         foreach ($people as $person) {
 392                                                 if (substr($person,0,4) === 'cid:') {
 393                                                         $recipients[] = intval(substr($person,4));
 394                                                         $conversants[] = intval(substr($person,4));
 395                                                 } else {
 396                                                         $url_recipients[] = substr($person,4);
 397                                                 }
 398                                         }
 399                                 }
 400                         }
 401
 402                         if (count($url_recipients))
 403                                 logger('notifier: '.$target_item["guid"].' url_recipients ' . print_r($url_recipients,true));
 404
 405                         $conversants = array_unique($conversants);
 406
 407
 408                         $recipients = array_unique(array_merge($recipients,$allow_people,$allow_groups));
 409                         $deny = array_unique(array_merge($deny_people,$deny_groups));
 410                         $recipients = array_diff($recipients,$deny);
 411
 412                         $conversant_str = dbesc(implode(', ',$conversants));
 413                 }
 414
 415                 // If the thread parent is OStatus then do some magic to distribute the messages.
 416                 // We have not only to look at the parent, since it could be a Friendica thread.
 417                 if (($thr_parent && ($thr_parent[0]['network'] == NETWORK_OSTATUS)) || ($parent['network'] == NETWORK_OSTATUS)) {
 418
 419                         $diaspora_delivery = false;
 420
 421                         logger('Some parent is OStatus for '.$target_item["guid"]." - Author: ".$thr_parent[0]['author-link']." - Owner: ".$thr_parent[0]['owner-link'], LOGGER_DEBUG);
 422
 423                         // Send a salmon to the parent author
 424                         $r = q("SELECT `url`, `notify` FROM `contact` WHERE `nurl`='%s' AND `uid` IN (0, %d) AND `notify` != ''",
 425                                 dbesc(normalise_link($thr_parent[0]['author-link'])),
 426                                 intval($uid));
 427                         if (DBM::is_result($r)) {
 428                                 $probed_contact = $r[0];
 429                         } else {
 430                                 $probed_contact = Probe::uri($thr_parent[0]['author-link']);
 431                         }
 432
 433                         if ($probed_contact["notify"] != "") {
 434                                 logger('Notify parent author '.$probed_contact["url"].': '.$probed_contact["notify"]);
 435                                 $url_recipients[$probed_contact["notify"]] = $probed_contact["notify"];
 436                         }
 437
 438                         // Send a salmon to the parent owner
 439                         $r = q("SELECT `url`, `notify` FROM `contact` WHERE `nurl`='%s' AND `uid` IN (0, %d) AND `notify` != ''",
 440                                 dbesc(normalise_link($thr_parent[0]['owner-link'])),
 441                                 intval($uid));
 442                         if (DBM::is_result($r)) {
 443                                 $probed_contact = $r[0];
 444                         } else {
 445                                 $probed_contact = Probe::uri($thr_parent[0]['owner-link']);
 446                         }
 447
 448                         if ($probed_contact["notify"] != "") {
 449                                 logger('Notify parent owner '.$probed_contact["url"].': '.$probed_contact["notify"]);
 450                                 $url_recipients[$probed_contact["notify"]] = $probed_contact["notify"];
 451                         }
 452
 453                         // Send a salmon notification to every person we mentioned in the post
 454                         $arr = explode(',',$target_item['tag']);
 455                         foreach ($arr as $x) {
 456                                 //logger('Checking tag '.$x, LOGGER_DEBUG);
 457                                 $matches = null;
 458                                 if (preg_match('/@\[url=([^\]]*)\]/',$x,$matches)) {
 459                                                 $probed_contact = Probe::uri($matches[1]);
 460                                         if ($probed_contact["notify"] != "") {
 461                                                 logger('Notify mentioned user '.$probed_contact["url"].': '.$probed_contact["notify"]);
 462                                                 $url_recipients[$probed_contact["notify"]] = $probed_contact["notify"];
 463                                         }
 464                                 }
 465                         }
 466
 467                         // It only makes sense to distribute answers to OStatus messages to Friendica and OStatus - but not Diaspora
 468                         $sql_extra = " AND `network` IN ('".NETWORK_OSTATUS."', '".NETWORK_DFRN."')";
 469                 } else {
 470                         $sql_extra = " AND `network` IN ('".NETWORK_OSTATUS."', '".NETWORK_DFRN."', '".NETWORK_DIASPORA."', '".NETWORK_MAIL."', '".NETWORK_MAIL2."')";
 471                 }
 472         } else {
 473                 $public_message = false;
 474         }
 475
 476         // If this is a public message and pubmail is set on the parent, include all your email contacts
 477
 478         $mail_disabled = ((function_exists('imap_open') && (!Config::get('system','imap_disabled'))) ? 0 : 1);
 479
 480         if (! $mail_disabled) {
 481                 if ((! strlen($target_item['allow_cid'])) && (! strlen($target_item['allow_gid']))
 482                         && (! strlen($target_item['deny_cid'])) && (! strlen($target_item['deny_gid']))
 483                         && (intval($target_item['pubmail']))) {
 484                         $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `network` = '%s'",
 485                                 intval($uid),
 486                                 dbesc(NETWORK_MAIL)
 487                         );
 488                         if (DBM::is_result($r)) {
 489                                 foreach ($r as $rr) {
 490                                         $recipients[] = $rr['id'];
 491                                 }
 492                         }
 493                 }
 494         }
 495
 496         if ($followup) {
 497                 $recip_str = implode(', ', $recipients_followup);
 498         } else {
 499                 $recip_str = implode(', ', $recipients);
 500         }
 501         if ($relocate) {
 502                 $r = $recipients_relocate;
 503         } else {
 504                 $r = q("SELECT `id`, `url`, `network`, `self` FROM `contact`
 505                         WHERE `id` IN (%s) AND NOT `blocked` AND NOT `pending` AND NOT `archive`".$sql_extra,
 506                         dbesc($recip_str)
 507                 );
 508         }
 509
 510         // delivery loop
 511
 512         if (DBM::is_result($r)) {
 513                 foreach ($r as $contact) {
 514                         if ($contact['self']) {
 515                                 continue;
 516                         }
 517                         logger("Deliver ".$target_item["guid"]." to ".$contact['url']." via network ".$contact['network'], LOGGER_DEBUG);
 518
 519                         Worker::add(array('priority' => $a->queue['priority'], 'created' => $a->queue['created'], 'dont_fork' => true),
 520                                         'delivery', $cmd, $item_id, (int)$contact['id']);
 521                 }
 522         }
 523
 524         // send salmon slaps to mentioned remote tags (@foo@example.com) in OStatus posts
 525         // They are especially used for notifications to OStatus users that don't follow us.
 526
 527         if ($slap && count($url_recipients) && ($public_message || $push_notify) && $normal_mode) {
 528                 if (!Config::get('system','dfrn_only')) {
 529                         foreach ($url_recipients as $url) {
 530                                 if ($url) {
 531                                         logger('notifier: urldelivery: ' . $url);
 532                                         $deliver_status = slapper($owner,$url,$slap);
 533                                         /// @TODO Redeliver/queue these items on failure, though there is no contact record
 534                                 }
 535                         }
 536                 }
 537         }
 538
 539
 540         if ($public_message) {
 541
 542                 $r0 = array();
 543                 $r1 = array();
 544
 545                 if ($diaspora_delivery) {
 546                         if (!$followup) {
 547                                 $r0 = Diaspora::relay_list();
 548                         }
 549
 550                         $r1 = q("SELECT `batch`, ANY_VALUE(`id`) AS `id`, ANY_VALUE(`name`) AS `name`, ANY_VALUE(`network`) AS `network`
 551                                 FROM `contact` WHERE `network` = '%s' AND `batch` != ''
 552                                 AND `uid` = %d AND `rel` != %d AND NOT `blocked` AND NOT `pending` AND NOT `archive` GROUP BY `batch`",
 553                                 dbesc(NETWORK_DIASPORA),
 554                                 intval($owner['uid']),
 555                                 intval(CONTACT_IS_SHARING)
 556                         );
 557                 }
 558
 559                 $r2 = q("SELECT `id`, `name`,`network` FROM `contact`
 560                         WHERE `network` in ('%s', '%s') AND `uid` = %d AND NOT `blocked` AND NOT `pending` AND NOT `archive` AND `rel` != %d",
 561                         dbesc(NETWORK_DFRN),
 562                         dbesc(NETWORK_MAIL2),
 563                         intval($owner['uid']),
 564                         intval(CONTACT_IS_SHARING)
 565                 );
 566
 567                 $r = array_merge($r2,$r1,$r0);
 568
 569                 if (DBM::is_result($r)) {
 570                         logger('pubdeliver '.$target_item["guid"].': '.print_r($r,true), LOGGER_DEBUG);
 571
 572                         foreach ($r as $rr) {
 573
 574                                 // except for Diaspora batch jobs
 575                                 // Don't deliver to folks who have already been delivered to
 576
 577                                 if (($rr['network'] !== NETWORK_DIASPORA) && (in_array($rr['id'],$conversants))) {
 578                                         logger('notifier: already delivered id=' . $rr['id']);
 579                                         continue;
 580                                 }
 581
 582                                 if ((! $mail) && (! $fsuggest) && (! $followup)) {
 583                                         logger('notifier: delivery agent: '.$rr['name'].' '.$rr['id'].' '.$rr['network'].' '.$target_item["guid"]);
 584                                         Worker::add(array('priority' => $a->queue['priority'], 'created' => $a->queue['created'], 'dont_fork' => true),
 585                                                         'delivery', $cmd, $item_id, (int)$rr['id']);
 586                                 }
 587                         }
 588                 }
 589
 590                 $push_notify = true;
 591
 592         }
 593
 594         // Notify PuSH subscribers (Used for OStatus distribution of regular posts)
 595         if ($push_notify) {
 596                 // Set push flag for PuSH subscribers to this topic,
 597                 // they will be notified in queue.php
 598                 q("UPDATE `push_subscriber` SET `push` = 1 ".
 599                   "WHERE `nickname` = '%s' AND `push` = 0", dbesc($owner['nickname']));
 600
 601                 logger('Activating internal PuSH for item '.$item_id, LOGGER_DEBUG);
 602
 603                 // Handling the pubsubhubbub requests
 604                 Worker::add(array('priority' => PRIORITY_HIGH, 'created' => $a->queue['created'], 'dont_fork' => true),
 605                                 'pubsubpublish');
 606         }
 607
 608         logger('notifier: calling hooks', LOGGER_DEBUG);
 609
 610         if ($normal_mode) {
 611                 call_hooks('notifier_normal',$target_item);
 612         }
 613
 614         call_hooks('notifier_end',$target_item);
 615
 616         return;
 617 }