]> git.mxchange.org Git - friendica.git/blob - include/notifier.php
Diaspora: Incompatibilities with signature check solved
[friendica.git] / include / notifier.php
1 <?php
2 require_once("boot.php");
3 require_once('include/queue_fn.php');
4 require_once('include/html2plain.php');
5 require_once("include/Scrape.php");
6 require_once('include/diaspora.php');
7 require_once("include/ostatus.php");
8 require_once('include/salmon.php');
9
10 /*
11  * This file was at one time responsible for doing all deliveries, but this caused
12  * big problems when the process was killed or stalled during the delivery process.
13  * It now invokes separate queues that are delivering via delivery.php and pubsubpublish.php.
14  */
15
16 /*
17  * The notifier is typically called with:
18  *
19  *              proc_run('php', "include/notifier.php", COMMAND, ITEM_ID);
20  *
21  * where COMMAND is one of the following:
22  *
23  *              activity                                (in diaspora.php, dfrn_confirm.php, profiles.php)
24  *              comment-import                  (in diaspora.php, items.php)
25  *              comment-new                             (in item.php)
26  *              drop                                    (in diaspora.php, items.php, photos.php)
27  *              edit_post                               (in item.php)
28  *              event                                   (in events.php)
29  *              expire                                  (in items.php)
30  *              like                                    (in like.php, poke.php)
31  *              mail                                    (in message.php)
32  *              suggest                                 (in fsuggest.php)
33  *              tag                                             (in photos.php, poke.php, tagger.php)
34  *              tgroup                                  (in items.php)
35  *              wall-new                                (in photos.php, item.php)
36  *              removeme                                (in Contact.php)
37  *              relocate                                (in uimport.php)
38  *
39  * and ITEM_ID is the id of the item in the database that needs to be sent to others.
40  */
41
42
43 function notifier_run(&$argv, &$argc){
44         global $a, $db;
45
46         if(is_null($a)){
47                 $a = new App;
48         }
49
50         if(is_null($db)) {
51                 @include(".htconfig.php");
52                 require_once("include/dba.php");
53                 $db = new dba($db_host, $db_user, $db_pass, $db_data);
54                         unset($db_host, $db_user, $db_pass, $db_data);
55         }
56
57         require_once("include/session.php");
58         require_once("include/datetime.php");
59         require_once('include/items.php');
60         require_once('include/bbcode.php');
61         require_once('include/email.php');
62         load_config('config');
63         load_config('system');
64
65         load_hooks();
66
67         if($argc < 3)
68                 return;
69
70         $a->set_baseurl(get_config('system','url'));
71
72         logger('notifier: invoked: ' . print_r($argv,true), LOGGER_DEBUG);
73
74         $cmd = $argv[1];
75
76         switch($cmd) {
77                 case 'mail':
78                 default:
79                         $item_id = intval($argv[2]);
80                         if(! $item_id){
81                                 return;
82                         }
83                         break;
84         }
85
86         $expire = false;
87         $mail = false;
88         $fsuggest = false;
89         $relocate = false;
90         $top_level = false;
91         $recipients = array();
92         $url_recipients = array();
93
94         $normal_mode = true;
95
96         if($cmd === 'mail') {
97                 $normal_mode = false;
98                 $mail = true;
99                 $message = q("SELECT * FROM `mail` WHERE `id` = %d LIMIT 1",
100                                 intval($item_id)
101                 );
102                 if(! count($message)){
103                         return;
104                 }
105                 $uid = $message[0]['uid'];
106                 $recipients[] = $message[0]['contact-id'];
107                 $item = $message[0];
108
109         }
110         elseif($cmd === 'expire') {
111                 $normal_mode = false;
112                 $expire = true;
113                 $items = q("SELECT * FROM `item` WHERE `uid` = %d AND `wall` = 1
114                         AND `deleted` = 1 AND `changed` > UTC_TIMESTAMP() - INTERVAL 10 MINUTE",
115                         intval($item_id)
116                 );
117                 $uid = $item_id;
118                 $item_id = 0;
119                 if(! count($items))
120                         return;
121         }
122         elseif($cmd === 'suggest') {
123                 $normal_mode = false;
124                 $fsuggest = true;
125
126                 $suggest = q("SELECT * FROM `fsuggest` WHERE `id` = %d LIMIT 1",
127                         intval($item_id)
128                 );
129                 if(! count($suggest))
130                         return;
131                 $uid = $suggest[0]['uid'];
132                 $recipients[] = $suggest[0]['cid'];
133                 $item = $suggest[0];
134         } elseif($cmd === 'removeme') {
135                 $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval($item_id));
136                 if (! $r)
137                         return;
138
139                 $user = $r[0];
140                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1", intval($item_id));
141                 if (! $r)
142                         return;
143
144                 $self = $r[0];
145                 $r = q("SELECT * FROM `contact` WHERE `self` = 0 AND `uid` = %d", intval($item_id));
146                 if(! $r)
147                         return;
148
149                 require_once('include/Contact.php');
150                 foreach($r as $contact) {
151                         terminate_friendship($user, $self, $contact);
152                 }
153                 return;
154         } elseif($cmd === 'relocate') {
155                 $normal_mode = false;
156                 $relocate = true;
157                 $uid = $item_id;
158
159                 $recipients_relocate = q("SELECT * FROM contact WHERE uid = %d  AND self = 0 AND network = '%s'" , intval($uid), NETWORK_DFRN);
160         } else {
161                 // find ancestors
162                 $r = q("SELECT * FROM `item` WHERE `id` = %d and visible = 1 and moderated = 0 LIMIT 1",
163                         intval($item_id)
164                 );
165
166                 if((! count($r)) || (! intval($r[0]['parent']))) {
167                         return;
168                 }
169
170                 $target_item = $r[0];
171                 $parent_id = intval($r[0]['parent']);
172                 $uid = $r[0]['uid'];
173                 $updated = $r[0]['edited'];
174
175                 $items = q("SELECT `item`.*, `sign`.`signed_text`,`sign`.`signature`,`sign`.`signer`
176                         FROM `item` LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id` WHERE `parent` = %d and visible = 1 and moderated = 0 ORDER BY `id` ASC",
177                         intval($parent_id)
178                 );
179
180                 if(! count($items)) {
181                         return;
182                 }
183
184                 // avoid race condition with deleting entries
185
186                 if($items[0]['deleted']) {
187                         foreach($items as $item)
188                                 $item['deleted'] = 1;
189                 }
190
191                 if((count($items) == 1) && ($items[0]['id'] === $target_item['id']) && ($items[0]['uri'] === $items[0]['parent-uri'])) {
192                         logger('notifier: top level post');
193                         $top_level = true;
194                 }
195
196         }
197
198         $r = q("SELECT `contact`.*, `user`.`pubkey` AS `upubkey`, `user`.`prvkey` AS `uprvkey`,
199                 `user`.`timezone`, `user`.`nickname`, `user`.`sprvkey`, `user`.`spubkey`,
200                 `user`.`page-flags`, `user`.`prvnets`
201                 FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
202                 WHERE `contact`.`uid` = %d AND `contact`.`self` = 1 LIMIT 1",
203                 intval($uid)
204         );
205
206         if(! count($r))
207                 return;
208
209         $owner = $r[0];
210
211         $walltowall = ((($top_level) && ($owner['id'] != $items[0]['contact-id'])) ? true : false);
212
213         $hub = get_config('system','huburl');
214
215         // If this is a public conversation, notify the feed hub
216         $public_message = true;
217
218         // Do a PuSH
219         $push_notify = false;
220
221         // fill this in with a single salmon slap if applicable
222         $slap = '';
223
224         if(! ($mail || $fsuggest || $relocate)) {
225
226                 $slap = ostatus::salmon($target_item,$owner);
227
228                 require_once('include/group.php');
229
230                 $parent = $items[0];
231
232                 $thr_parent = q("SELECT `network`, `author-link`, `owner-link` FROM `item` WHERE `uri` = '%s' AND `uid` = %d",
233                         dbesc($target_item["thr-parent"]), intval($target_item["uid"]));
234
235                 logger('Parent is '.$parent['network'].'. Thread parent is '.$thr_parent[0]['network'], LOGGER_DEBUG);
236
237                 // This is IMPORTANT!!!!
238
239                 // We will only send a "notify owner to relay" or followup message if the referenced post
240                 // originated on our system by virtue of having our hostname somewhere
241                 // in the URI, AND it was a comment (not top_level) AND the parent originated elsewhere.
242
243                 // if $parent['wall'] == 1 we will already have the parent message in our array
244                 // and we will relay the whole lot.
245
246                 // expire sends an entire group of expire messages and cannot be forwarded.
247                 // However the conversation owner will be a part of the conversation and will
248                 // be notified during this run.
249                 // Other DFRN conversation members will be alerted during polled updates.
250
251
252
253                 // Diaspora members currently are not notified of expirations, and other networks have
254                 // either limited or no ability to process deletions. We should at least fix Diaspora
255                 // by stringing togther an array of retractions and sending them onward.
256
257
258                 $localhost = str_replace('www.','',$a->get_hostname());
259                 if(strpos($localhost,':'))
260                         $localhost = substr($localhost,0,strpos($localhost,':'));
261
262                 /**
263                  *
264                  * Be VERY CAREFUL if you make any changes to the following several lines. Seemingly innocuous changes
265                  * have been known to cause runaway conditions which affected several servers, along with
266                  * permissions issues.
267                  *
268                  */
269
270                 $relay_to_owner = false;
271
272                 if(!$top_level && ($parent['wall'] == 0) && !$expire && (stristr($target_item['uri'],$localhost))) {
273                         $relay_to_owner = true;
274                 }
275
276
277                 if(($cmd === 'uplink') && (intval($parent['forum_mode']) == 1) && !$top_level) {
278                         $relay_to_owner = true;
279                 }
280
281                 // until the 'origin' flag has been in use for several months
282                 // we will just use it as a fallback test
283                 // later we will be able to use it as the primary test of whether or not to relay.
284
285                 if(! $target_item['origin'])
286                         $relay_to_owner = false;
287
288                 if($parent['origin'])
289                         $relay_to_owner = false;
290
291                 if($relay_to_owner) {
292                         logger('notifier: followup '.$target_item["guid"], LOGGER_DEBUG);
293                         // local followup to remote post
294                         $followup = true;
295                         $public_message = false; // not public
296                         $conversant_str = dbesc($parent['contact-id']);
297                         $recipients = array($parent['contact-id']);
298                         $recipients_followup  = array($parent['contact-id']);
299
300                         //if (!$target_item['private'] AND $target_item['wall'] AND
301                         if (!$target_item['private'] AND
302                                 (strlen($target_item['allow_cid'].$target_item['allow_gid'].
303                                         $target_item['deny_cid'].$target_item['deny_gid']) == 0))
304                                 $push_notify = true;
305
306                         if (($thr_parent AND ($thr_parent[0]['network'] == NETWORK_OSTATUS)) OR ($parent['network'] == NETWORK_OSTATUS)) {
307
308                                 $push_notify = true;
309
310                                 if ($parent["network"] == NETWORK_OSTATUS) {
311                                         // Distribute the message to the DFRN contacts as if this wasn't a followup since OStatus can't relay comments
312                                         // Currently it is work at progress
313                                         $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `network` = '%s' AND NOT `blocked` AND NOT `pending` AND NOT `archive`",
314                                                 intval($uid),
315                                                 dbesc(NETWORK_DFRN)
316                                         );
317                                         if(count($r))
318                                                 foreach($r as $rr)
319                                                         $recipients_followup[] = $rr['id'];
320                                 }
321                         }
322                         logger("Notify ".$target_item["guid"]." via PuSH: ".($push_notify?"Yes":"No"), LOGGER_DEBUG);
323                 } else {
324                         $followup = false;
325
326                         logger('Distributing directly '.$target_item["guid"], LOGGER_DEBUG);
327
328                         // don't send deletions onward for other people's stuff
329
330                         if($target_item['deleted'] && (! intval($target_item['wall']))) {
331                                 logger('notifier: ignoring delete notification for non-wall item');
332                                 return;
333                         }
334
335                         if((strlen($parent['allow_cid']))
336                                 || (strlen($parent['allow_gid']))
337                                 || (strlen($parent['deny_cid']))
338                                 || (strlen($parent['deny_gid']))) {
339                                 $public_message = false; // private recipients, not public
340                         }
341
342                         $allow_people = expand_acl($parent['allow_cid']);
343                         $allow_groups = expand_groups(expand_acl($parent['allow_gid']),true);
344                         $deny_people  = expand_acl($parent['deny_cid']);
345                         $deny_groups  = expand_groups(expand_acl($parent['deny_gid']));
346
347                         // if our parent is a public forum (forum_mode == 1), uplink to the origional author causing
348                         // a delivery fork. private groups (forum_mode == 2) do not uplink
349
350                         if((intval($parent['forum_mode']) == 1) && (! $top_level) && ($cmd !== 'uplink')) {
351                                 proc_run('php','include/notifier.php','uplink',$item_id);
352                         }
353
354                         $conversants = array();
355
356                         foreach($items as $item) {
357                                 $recipients[] = $item['contact-id'];
358                                 $conversants[] = $item['contact-id'];
359                                 // pull out additional tagged people to notify (if public message)
360                                 if($public_message && strlen($item['inform'])) {
361                                         $people = explode(',',$item['inform']);
362                                         foreach($people as $person) {
363                                                 if(substr($person,0,4) === 'cid:') {
364                                                         $recipients[] = intval(substr($person,4));
365                                                         $conversants[] = intval(substr($person,4));
366                                                 }
367                                                 else {
368                                                         $url_recipients[] = substr($person,4);
369                                                 }
370                                         }
371                                 }
372                         }
373
374                         if (count($url_recipients))
375                                 logger('notifier: '.$target_item["guid"].' url_recipients ' . print_r($url_recipients,true));
376
377                         $conversants = array_unique($conversants);
378
379
380                         $recipients = array_unique(array_merge($recipients,$allow_people,$allow_groups));
381                         $deny = array_unique(array_merge($deny_people,$deny_groups));
382                         $recipients = array_diff($recipients,$deny);
383
384                         $conversant_str = dbesc(implode(', ',$conversants));
385                 }
386
387                 // If the thread parent is OStatus then do some magic to distribute the messages.
388                 // We have not only to look at the parent, since it could be a Friendica thread.
389                 if (($thr_parent AND ($thr_parent[0]['network'] == NETWORK_OSTATUS)) OR ($parent['network'] == NETWORK_OSTATUS)) {
390
391                         logger('Some parent is OStatus for '.$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                         $r = q("SELECT `notify` FROM `contact` WHERE `nurl`='%s' AND `uid` IN (0, %d) AND `notify` != ''",
395                                 dbesc(normalise_link($thr_parent[0]['author-link'])),
396                                 intval($uid));
397                         if ($r)
398                                 $probed_contact = $r[0];
399                         else
400                                 $probed_contact = probe_url($thr_parent[0]['author-link']);
401
402                         if ($probed_contact["notify"] != "") {
403                                 logger('Notify parent author '.$probed_contact["url"].': '.$probed_contact["notify"]);
404                                 $url_recipients[$probed_contact["notify"]] = $probed_contact["notify"];
405                         }
406
407                         // Send a salmon to the parent owner
408                         $r = q("SELECT `notify` FROM `contact` WHERE `nurl`='%s' AND `uid` IN (0, %d) AND `notify` != ''",
409                                 dbesc(normalise_link($thr_parent[0]['owner-link'])),
410                                 intval($uid));
411                         if ($r)
412                                 $probed_contact = $r[0];
413                         else
414                                 $probed_contact = probe_url($thr_parent[0]['owner-link']);
415                         if ($probed_contact["notify"] != "") {
416                                 logger('Notify parent owner '.$probed_contact["url"].': '.$probed_contact["notify"]);
417                                 $url_recipients[$probed_contact["notify"]] = $probed_contact["notify"];
418                         }
419
420                         // Send a salmon notification to every person we mentioned in the post
421                         $arr = explode(',',$target_item['tag']);
422                         foreach($arr as $x) {
423                                 //logger('Checking tag '.$x, LOGGER_DEBUG);
424                                 $matches = null;
425                                 if(preg_match('/@\[url=([^\]]*)\]/',$x,$matches)) {
426                                                 $probed_contact = probe_url($matches[1]);
427                                         if ($probed_contact["notify"] != "") {
428                                                 logger('Notify mentioned user '.$probed_contact["url"].': '.$probed_contact["notify"]);
429                                                 $url_recipients[$probed_contact["notify"]] = $probed_contact["notify"];
430                                         }
431                                 }
432                         }
433
434                         // It only makes sense to distribute answers to OStatus messages to Friendica and OStatus - but not Diaspora
435                         $sql_extra = " AND `network` IN ('".NETWORK_OSTATUS."', '".NETWORK_DFRN."')";
436                 } else
437                         $sql_extra = " AND `network` IN ('".NETWORK_OSTATUS."', '".NETWORK_DFRN."', '".NETWORK_DIASPORA."', '".NETWORK_MAIL."', '".NETWORK_MAIL2."')";
438
439                 $r = q("SELECT * FROM `contact` WHERE `id` IN ($conversant_str) AND NOT `blocked` AND NOT `pending` AND NOT `archive`".$sql_extra);
440
441                 if(count($r))
442                         $contacts = $r;
443
444         } else
445                 $public_message = false;
446
447         // If this is a public message and pubmail is set on the parent, include all your email contacts
448
449         $mail_disabled = ((function_exists('imap_open') && (! get_config('system','imap_disabled'))) ? 0 : 1);
450
451         if(! $mail_disabled) {
452                 if((! strlen($target_item['allow_cid'])) && (! strlen($target_item['allow_gid']))
453                         && (! strlen($target_item['deny_cid'])) && (! strlen($target_item['deny_gid']))
454                         && (intval($target_item['pubmail']))) {
455                         $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `network` = '%s'",
456                                 intval($uid),
457                                 dbesc(NETWORK_MAIL)
458                         );
459                         if(count($r)) {
460                                 foreach($r as $rr)
461                                         $recipients[] = $rr['id'];
462                         }
463                 }
464         }
465
466         if($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                 $r = q("SELECT * FROM `contact` WHERE `id` IN (%s) AND NOT `blocked` AND NOT `pending` AND NOT `archive`",
475                         dbesc($recip_str)
476                 );
477
478
479         $interval = ((get_config('system','delivery_interval') === false) ? 2 : intval(get_config('system','delivery_interval')));
480
481         // If we are using the worker we don't need a delivery interval
482         if (get_config("system", "worker"))
483                 $interval = false;
484
485         // delivery loop
486
487         if(count($r)) {
488
489                 foreach($r as $contact) {
490                         if(!$contact['self']) {
491                                 if(($contact['network'] === NETWORK_DIASPORA) && ($public_message))
492                                         continue;
493                                 q("INSERT INTO `deliverq` (`cmd`,`item`,`contact`) VALUES ('%s', %d, %d)",
494                                         dbesc($cmd),
495                                         intval($item_id),
496                                         intval($contact['id'])
497                                 );
498                         }
499                 }
500
501
502                 // This controls the number of deliveries to execute with each separate delivery process.
503                 // By default we'll perform one delivery per process. Assuming a hostile shared hosting
504                 // provider, this provides the greatest chance of deliveries if processes start getting
505                 // killed. We can also space them out with the delivery_interval to also help avoid them
506                 // getting whacked.
507
508                 // If $deliveries_per_process > 1, we will chain this number of multiple deliveries
509                 // together into a single process. This will reduce the overall number of processes
510                 // spawned for each delivery, but they will run longer.
511
512                 // When using the workerqueue, we don't need this functionality.
513
514                 $deliveries_per_process = intval(get_config('system','delivery_batch_count'));
515                 if (($deliveries_per_process <= 0) OR get_config("system", "worker"))
516                         $deliveries_per_process = 1;
517
518                 $this_batch = array();
519
520                 for($x = 0; $x < count($r); $x ++) {
521                         $contact = $r[$x];
522
523                         if($contact['self'])
524                                 continue;
525
526                         logger("Deliver ".$target_item["guid"]." to ".$contact['url']." via network ".$contact['network'], LOGGER_DEBUG);
527
528                         // potentially more than one recipient. Start a new process and space them out a bit.
529                         // we will deliver single recipient types of message and email recipients here.
530
531                         $this_batch[] = $contact['id'];
532
533                         if(count($this_batch) >= $deliveries_per_process) {
534                                 proc_run('php','include/delivery.php',$cmd,$item_id,$this_batch);
535                                 $this_batch = array();
536                                 if($interval)
537                                         @time_sleep_until(microtime(true) + (float) $interval);
538                         }
539                         continue;
540                 }
541
542                 // be sure to pick up any stragglers
543                 if(count($this_batch))
544                         proc_run('php','include/delivery.php',$cmd,$item_id,$this_batch);
545         }
546
547         // send salmon slaps to mentioned remote tags (@foo@example.com) in OStatus posts
548         // They are especially used for notifications to OStatus users that don't follow us.
549
550         if($slap && count($url_recipients) && ($public_message || $push_notify) && $normal_mode) {
551                 if(!get_config('system','dfrn_only')) {
552                         foreach($url_recipients as $url) {
553                                 if($url) {
554                                         logger('notifier: urldelivery: ' . $url);
555                                         $deliver_status = slapper($owner,$url,$slap);
556                                         /// @TODO Redeliver/queue these items on failure, though there is no contact record
557                                 }
558                         }
559                 }
560         }
561
562
563         if($public_message) {
564
565                 if (!$followup)
566                         $r0 = diaspora::relay_list();
567                 else
568                         $r0 = array();
569
570                 $r1 = q("SELECT DISTINCT(`batch`), `id`, `name`,`network` FROM `contact` WHERE `network` = '%s'
571                         AND `uid` = %d AND `rel` != %d group by `batch` ORDER BY rand() ",
572                         dbesc(NETWORK_DIASPORA),
573                         intval($owner['uid']),
574                         intval(CONTACT_IS_SHARING)
575                 );
576
577                 $r2 = q("SELECT `id`, `name`,`network` FROM `contact`
578                         WHERE `network` in ( '%s', '%s')  AND `uid` = %d AND NOT `blocked` AND NOT `pending` AND NOT `archive`
579                         AND `rel` != %d order by rand() ",
580                         dbesc(NETWORK_DFRN),
581                         dbesc(NETWORK_MAIL2),
582                         intval($owner['uid']),
583                         intval(CONTACT_IS_SHARING)
584                 );
585
586                 $r = array_merge($r2,$r1,$r0);
587
588                 if(count($r)) {
589                         logger('pubdeliver '.$target_item["guid"].': '.print_r($r,true), LOGGER_DEBUG);
590
591                         // throw everything into the queue in case we get killed
592
593                         foreach($r as $rr) {
594                                 if((! $mail) && (! $fsuggest) && (! $followup)) {
595                                         q("insert into deliverq ( `cmd`,`item`,`contact` ) values ('%s', %d, %d )",
596                                                 dbesc($cmd),
597                                                 intval($item_id),
598                                                 intval($rr['id'])
599                                         );
600                                 }
601                         }
602
603                         foreach($r as $rr) {
604
605                                 // except for Diaspora batch jobs
606                                 // Don't deliver to folks who have already been delivered to
607
608                                 if(($rr['network'] !== NETWORK_DIASPORA) && (in_array($rr['id'],$conversants))) {
609                                         logger('notifier: already delivered id=' . $rr['id']);
610                                         continue;
611                                 }
612
613                                 if((! $mail) && (! $fsuggest) && (! $followup)) {
614                                         logger('notifier: delivery agent: '.$rr['name'].' '.$rr['id'].' '.$rr['network'].' '.$target_item["guid"]);
615                                         proc_run('php','include/delivery.php',$cmd,$item_id,$rr['id']);
616                                         if($interval)
617                                                 @time_sleep_until(microtime(true) + (float) $interval);
618                                 }
619                         }
620                 }
621
622                 $push_notify = true;
623
624         }
625
626         // Notify PuSH subscribers (Used for OStatus distribution of regular posts)
627         if($push_notify AND strlen($hub)) {
628                 $hubs = explode(',', $hub);
629                 if(count($hubs)) {
630                         foreach($hubs as $h) {
631                                 $h = trim($h);
632                                 if(! strlen($h))
633                                         continue;
634
635                                 if ($h === '[internal]') {
636                                         // Set push flag for PuSH subscribers to this topic,
637                                         // they will be notified in queue.php
638                                         q("UPDATE `push_subscriber` SET `push` = 1 " .
639                                           "WHERE `nickname` = '%s'", dbesc($owner['nickname']));
640
641                                         logger('Activating internal PuSH for item '.$item_id, LOGGER_DEBUG);
642
643                                 } else {
644
645                                         $params = 'hub.mode=publish&hub.url=' . urlencode( $a->get_baseurl() . '/dfrn_poll/' . $owner['nickname'] );
646                                         post_url($h,$params);
647                                         logger('publish for item '.$item_id.' ' . $h . ' ' . $params . ' returned ' . $a->get_curl_code());
648                                 }
649                                 if(count($hubs) > 1)
650                                         sleep(7);                               // try and avoid multiple hubs responding at precisely the same time
651                         }
652                 }
653
654                 // Handling the pubsubhubbub requests
655                 proc_run('php','include/pubsubpublish.php');
656         }
657
658         logger('notifier: calling hooks', LOGGER_DEBUG);
659
660         if($normal_mode)
661                 call_hooks('notifier_normal',$target_item);
662
663         call_hooks('notifier_end',$target_item);
664
665         return;
666 }
667
668
669 if (array_search(__file__,get_included_files())===0){
670         notifier_run($_SERVER["argv"],$_SERVER["argc"]);
671         killme();
672 }