include/notifier.php

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