src/Worker/Notifier.php

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