]> git.mxchange.org Git - friendica.git/blob - include/notifier.php
Merge remote-tracking branch 'upstream/develop' into 1705-some-more-dba
[friendica.git] / include / notifier.php
1 <?php
2
3 use Friendica\App;
4 use Friendica\Core\Config;
5
6 require_once 'include/queue_fn.php';
7 require_once 'include/html2plain.php';
8 require_once 'include/probe.php';
9 require_once 'include/diaspora.php';
10 require_once 'include/ostatus.php';
11 require_once 'include/salmon.php';
12
13 /*
14  * This file was at one time responsible for doing all deliveries, but this caused
15  * big problems when the process was killed or stalled during the delivery process.
16  * It now invokes separate queues that are delivering via delivery.php and pubsubpublish.php.
17  */
18
19 /*
20  * The notifier is typically called with:
21  *
22  *              proc_run(PRIORITY_HIGH, "include/notifier.php", COMMAND, ITEM_ID);
23  *
24  * where COMMAND is one of the following:
25  *
26  *              activity                                (in diaspora.php, dfrn_confirm.php, profiles.php)
27  *              comment-import                  (in diaspora.php, items.php)
28  *              comment-new                             (in item.php)
29  *              drop                                    (in diaspora.php, items.php, photos.php)
30  *              edit_post                               (in item.php)
31  *              event                                   (in events.php)
32  *              expire                                  (in items.php)
33  *              like                                    (in like.php, poke.php)
34  *              mail                                    (in message.php)
35  *              suggest                                 (in fsuggest.php)
36  *              tag                                             (in photos.php, poke.php, tagger.php)
37  *              tgroup                                  (in items.php)
38  *              wall-new                                (in photos.php, item.php)
39  *              removeme                                (in Contact.php)
40  *              relocate                                (in uimport.php)
41  *
42  * and ITEM_ID is the id of the item in the database that needs to be sent to others.
43  */
44
45
46 function notifier_run(&$argv, &$argc){
47         global $a;
48
49         require_once 'include/datetime.php';
50         require_once 'include/items.php';
51         require_once 'include/bbcode.php';
52         require_once 'include/email.php';
53
54         if ($argc < 3) {
55                 return;
56         }
57
58         logger('notifier: invoked: ' . print_r($argv,true), LOGGER_DEBUG);
59
60         $cmd = $argv[1];
61
62         switch($cmd) {
63                 case 'mail':
64                 default:
65                         $item_id = intval($argv[2]);
66                         if (! $item_id) {
67                                 return;
68                         }
69                         break;
70         }
71
72         $expire = false;
73         $mail = false;
74         $fsuggest = false;
75         $relocate = false;
76         $top_level = false;
77         $recipients = array();
78         $url_recipients = array();
79
80         $normal_mode = true;
81
82         if ($cmd === 'mail') {
83                 $normal_mode = false;
84                 $mail = true;
85                 $message = q("SELECT * FROM `mail` WHERE `id` = %d LIMIT 1",
86                                 intval($item_id)
87                 );
88                 if (! count($message)) {
89                         return;
90                 }
91                 $uid = $message[0]['uid'];
92                 $recipients[] = $message[0]['contact-id'];
93                 $item = $message[0];
94
95         } elseif ($cmd === 'expire') {
96                 $normal_mode = false;
97                 $expire = true;
98                 $items = q("SELECT * FROM `item` WHERE `uid` = %d AND `wall` = 1
99                         AND `deleted` = 1 AND `changed` > UTC_TIMESTAMP() - INTERVAL 10 MINUTE",
100                         intval($item_id)
101                 );
102                 $uid = $item_id;
103                 $item_id = 0;
104                 if (! count($items)) {
105                         return;
106                 }
107         } elseif ($cmd === 'suggest') {
108                 $normal_mode = false;
109                 $fsuggest = true;
110
111                 $suggest = q("SELECT * FROM `fsuggest` WHERE `id` = %d LIMIT 1",
112                         intval($item_id)
113                 );
114                 if (! count($suggest)) {
115                         return;
116                 }
117                 $uid = $suggest[0]['uid'];
118                 $recipients[] = $suggest[0]['cid'];
119                 $item = $suggest[0];
120         } elseif ($cmd === 'removeme') {
121                 $r = q("SELECT `contact`.*, `user`.`pubkey` AS `upubkey`, `user`.`prvkey` AS `uprvkey`,
122                                 `user`.`timezone`, `user`.`nickname`, `user`.`sprvkey`, `user`.`spubkey`,
123                                 `user`.`page-flags`, `user`.`prvnets`, `user`.`account-type`, `user`.`guid`
124                         FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
125                                 WHERE `contact`.`uid` = %d AND `contact`.`self` LIMIT 1",
126                                 intval($item_id));
127                 if (!$r)
128                         return;
129
130                 $user = $r[0];
131
132                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` LIMIT 1", intval($item_id));
133                 if (!$r)
134                         return;
135
136                 $self = $r[0];
137
138                 $r = q("SELECT * FROM `contact` WHERE NOT `self` AND `uid` = %d", intval($item_id));
139                 if (!$r) {
140                         return;
141                 }
142                 require_once 'include/Contact.php';
143                 foreach ($r as $contact) {
144                         terminate_friendship($user, $self, $contact);
145                 }
146                 return;
147         } elseif ($cmd === 'relocate') {
148                 $normal_mode = false;
149                 $relocate = true;
150                 $uid = $item_id;
151
152                 $recipients_relocate = q("SELECT * FROM contact WHERE uid = %d  AND self = 0 AND network = '%s'" , intval($uid), NETWORK_DFRN);
153         } else {
154                 // find ancestors
155                 $r = q("SELECT * FROM `item` WHERE `id` = %d and visible = 1 and moderated = 0 LIMIT 1",
156                         intval($item_id)
157                 );
158
159                 if ((! dbm::is_result($r)) || (! intval($r[0]['parent']))) {
160                         return;
161                 }
162
163                 $target_item = $r[0];
164                 $parent_id = intval($r[0]['parent']);
165                 $uid = $r[0]['uid'];
166                 $updated = $r[0]['edited'];
167
168                 $items = q("SELECT `item`.*, `sign`.`signed_text`,`sign`.`signature`,`sign`.`signer`
169                         FROM `item` LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id` WHERE `parent` = %d and visible = 1 and moderated = 0 ORDER BY `id` ASC",
170                         intval($parent_id)
171                 );
172
173                 if (! count($items)) {
174                         return;
175                 }
176
177                 // avoid race condition with deleting entries
178
179                 if ($items[0]['deleted']) {
180                         foreach ($items as $item) {
181                                 $item['deleted'] = 1;
182                         }
183                 }
184
185                 if ((count($items) == 1) && ($items[0]['id'] === $target_item['id']) && ($items[0]['uri'] === $items[0]['parent-uri'])) {
186                         logger('notifier: top level post');
187                         $top_level = true;
188                 }
189
190         }
191
192         $r = q("SELECT `contact`.*, `user`.`pubkey` AS `upubkey`, `user`.`prvkey` AS `uprvkey`,
193                 `user`.`timezone`, `user`.`nickname`, `user`.`sprvkey`, `user`.`spubkey`,
194                 `user`.`page-flags`, `user`.`prvnets`, `user`.`account-type`
195                 FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
196                 WHERE `contact`.`uid` = %d AND `contact`.`self` = 1 LIMIT 1",
197                 intval($uid)
198         );
199
200         if (! dbm::is_result($r)) {
201                 return;
202         }
203
204         $owner = $r[0];
205
206         $walltowall = ((($top_level) && ($owner['id'] != $items[0]['contact-id'])) ? true : false);
207
208         $hub = get_config('system','huburl');
209
210         // Should the post be transmitted to Diaspora?
211         $diaspora_delivery = true;
212
213         // If this is a public conversation, notify the feed hub
214         $public_message = true;
215
216         // Do a PuSH
217         $push_notify = false;
218
219         // fill this in with a single salmon slap if applicable
220         $slap = '';
221
222         if (! ($mail || $fsuggest || $relocate)) {
223
224                 $slap = ostatus::salmon($target_item,$owner);
225
226                 require_once 'include/group.php';
227
228                 $parent = $items[0];
229
230                 $thr_parent = q("SELECT `network`, `author-link`, `owner-link` FROM `item` WHERE `uri` = '%s' AND `uid` = %d",
231                         dbesc($target_item["thr-parent"]), intval($target_item["uid"]));
232
233                 logger('GUID: '.$target_item["guid"].': Parent is '.$parent['network'].'. Thread parent is '.$thr_parent[0]['network'], LOGGER_DEBUG);
234
235                 // This is IMPORTANT!!!!
236
237                 // We will only send a "notify owner to relay" or followup message if the referenced post
238                 // originated on our system by virtue of having our hostname somewhere
239                 // in the URI, AND it was a comment (not top_level) AND the parent originated elsewhere.
240
241                 // if $parent['wall'] == 1 we will already have the parent message in our array
242                 // and we will relay the whole lot.
243
244                 // expire sends an entire group of expire messages and cannot be forwarded.
245                 // However the conversation owner will be a part of the conversation and will
246                 // be notified during this run.
247                 // Other DFRN conversation members will be alerted during polled updates.
248
249
250
251                 // Diaspora members currently are not notified of expirations, and other networks have
252                 // either limited or no ability to process deletions. We should at least fix Diaspora
253                 // by stringing togther an array of retractions and sending them onward.
254
255
256                 $localhost = str_replace('www.','',$a->get_hostname());
257                 if (strpos($localhost,':')) {
258                         $localhost = substr($localhost,0,strpos($localhost,':'));
259                 }
260                 /**
261                  *
262                  * Be VERY CAREFUL if you make any changes to the following several lines. Seemingly innocuous changes
263                  * have been known to cause runaway conditions which affected several servers, along with
264                  * permissions issues.
265                  *
266                  */
267
268                 $relay_to_owner = false;
269
270                 if (!$top_level && ($parent['wall'] == 0) && !$expire && (stristr($target_item['uri'],$localhost))) {
271                         $relay_to_owner = true;
272                 }
273
274
275                 if (($cmd === 'uplink') && (intval($parent['forum_mode']) == 1) && !$top_level) {
276                         $relay_to_owner = true;
277                 }
278
279                 // until the 'origin' flag has been in use for several months
280                 // we will just use it as a fallback test
281                 // later we will be able to use it as the primary test of whether or not to relay.
282
283                 if (! $target_item['origin']) {
284                         $relay_to_owner = false;
285                 }
286                 if ($parent['origin']) {
287                         $relay_to_owner = false;
288                 }
289                 if ($relay_to_owner) {
290                         logger('notifier: followup '.$target_item["guid"], LOGGER_DEBUG);
291                         // local followup to remote post
292                         $followup = true;
293                         $public_message = false; // not public
294                         $conversant_str = dbesc($parent['contact-id']);
295                         $recipients = array($parent['contact-id']);
296                         $recipients_followup  = array($parent['contact-id']);
297
298                         //if (!$target_item['private'] AND $target_item['wall'] AND
299                         if (!$target_item['private'] AND
300                                 (strlen($target_item['allow_cid'].$target_item['allow_gid'].
301                                         $target_item['deny_cid'].$target_item['deny_gid']) == 0))
302                                 $push_notify = true;
303
304                         if (($thr_parent AND ($thr_parent[0]['network'] == NETWORK_OSTATUS)) OR ($parent['network'] == NETWORK_OSTATUS)) {
305
306                                 $push_notify = true;
307
308                                 if ($parent["network"] == NETWORK_OSTATUS) {
309                                         // Distribute the message to the DFRN contacts as if this wasn't a followup since OStatus can't relay comments
310                                         // Currently it is work at progress
311                                         $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `network` = '%s' AND NOT `blocked` AND NOT `pending` AND NOT `archive`",
312                                                 intval($uid),
313                                                 dbesc(NETWORK_DFRN)
314                                         );
315                                         if (dbm::is_result($r)) {
316                                                 foreach ($r as $rr) {
317                                                         $recipients_followup[] = $rr['id'];
318                                                 }
319                                         }
320                                 }
321                         }
322                         logger("Notify ".$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(PRIORITY_HIGH,'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                                                 } else {
367                                                         $url_recipients[] = substr($person,4);
368                                                 }
369                                         }
370                                 }
371                         }
372
373                         if (count($url_recipients))
374                                 logger('notifier: '.$target_item["guid"].' url_recipients ' . print_r($url_recipients,true));
375
376                         $conversants = array_unique($conversants);
377
378
379                         $recipients = array_unique(array_merge($recipients,$allow_people,$allow_groups));
380                         $deny = array_unique(array_merge($deny_people,$deny_groups));
381                         $recipients = array_diff($recipients,$deny);
382
383                         $conversant_str = dbesc(implode(', ',$conversants));
384                 }
385
386                 // If the thread parent is OStatus then do some magic to distribute the messages.
387                 // We have not only to look at the parent, since it could be a Friendica thread.
388                 if (($thr_parent AND ($thr_parent[0]['network'] == NETWORK_OSTATUS)) OR ($parent['network'] == NETWORK_OSTATUS)) {
389
390                         $diaspora_delivery = false;
391
392                         logger('Some parent is OStatus for '.$target_item["guid"]." - Author: ".$thr_parent[0]['author-link']." - Owner: ".$thr_parent[0]['owner-link'], LOGGER_DEBUG);
393
394                         // Send a salmon to the parent author
395                         $r = q("SELECT `url`, `notify` FROM `contact` WHERE `nurl`='%s' AND `uid` IN (0, %d) AND `notify` != ''",
396                                 dbesc(normalise_link($thr_parent[0]['author-link'])),
397                                 intval($uid));
398                         if (dbm::is_result($r)) {
399                                 $probed_contact = $r[0];
400                         } else {
401                                 $probed_contact = probe_url($thr_parent[0]['author-link']);
402                         }
403
404                         if ($probed_contact["notify"] != "") {
405                                 logger('Notify parent author '.$probed_contact["url"].': '.$probed_contact["notify"]);
406                                 $url_recipients[$probed_contact["notify"]] = $probed_contact["notify"];
407                         }
408
409                         // Send a salmon to the parent owner
410                         $r = q("SELECT `url`, `notify` FROM `contact` WHERE `nurl`='%s' AND `uid` IN (0, %d) AND `notify` != ''",
411                                 dbesc(normalise_link($thr_parent[0]['owner-link'])),
412                                 intval($uid));
413                         if (dbm::is_result($r)) {
414                                 $probed_contact = $r[0];
415                         } else {
416                                 $probed_contact = probe_url($thr_parent[0]['owner-link']);
417                         }
418
419                         if ($probed_contact["notify"] != "") {
420                                 logger('Notify parent owner '.$probed_contact["url"].': '.$probed_contact["notify"]);
421                                 $url_recipients[$probed_contact["notify"]] = $probed_contact["notify"];
422                         }
423
424                         // Send a salmon notification to every person we mentioned in the post
425                         $arr = explode(',',$target_item['tag']);
426                         foreach ($arr as $x) {
427                                 //logger('Checking tag '.$x, LOGGER_DEBUG);
428                                 $matches = null;
429                                 if (preg_match('/@\[url=([^\]]*)\]/',$x,$matches)) {
430                                                 $probed_contact = probe_url($matches[1]);
431                                         if ($probed_contact["notify"] != "") {
432                                                 logger('Notify mentioned user '.$probed_contact["url"].': '.$probed_contact["notify"]);
433                                                 $url_recipients[$probed_contact["notify"]] = $probed_contact["notify"];
434                                         }
435                                 }
436                         }
437
438                         // It only makes sense to distribute answers to OStatus messages to Friendica and OStatus - but not Diaspora
439                         $sql_extra = " AND `network` IN ('".NETWORK_OSTATUS."', '".NETWORK_DFRN."')";
440                 } else {
441                         $sql_extra = " AND `network` IN ('".NETWORK_OSTATUS."', '".NETWORK_DFRN."', '".NETWORK_DIASPORA."', '".NETWORK_MAIL."', '".NETWORK_MAIL2."')";
442                 }
443         } else {
444                 $public_message = false;
445         }
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 (dbm::is_result($r)) {
460                                 foreach ($r as $rr) {
461                                         $recipients[] = $rr['id'];
462                                 }
463                         }
464                 }
465         }
466
467         if ($followup) {
468                 $recip_str = implode(', ', $recipients_followup);
469         } else {
470                 $recip_str = implode(', ', $recipients);
471         }
472         if ($relocate) {
473                 $r = $recipients_relocate;
474         } else {
475                 $r = q("SELECT `id`, `url`, `network`, `self` FROM `contact`
476                         WHERE `id` IN (%s) AND NOT `blocked` AND NOT `pending` AND NOT `archive`".$sql_extra,
477                         dbesc($recip_str)
478                 );
479         }
480
481         // delivery loop
482
483         if (dbm::is_result($r)) {
484                 foreach ($r as $contact) {
485                         if ($contact['self']) {
486                                 continue;
487                         }
488                         logger("Deliver ".$target_item["guid"]." to ".$contact['url']." via network ".$contact['network'], LOGGER_DEBUG);
489
490                         proc_run(PRIORITY_HIGH,'include/delivery.php', $cmd, $item_id, $contact['id']);
491                 }
492         }
493
494         // send salmon slaps to mentioned remote tags (@foo@example.com) in OStatus posts
495         // They are especially used for notifications to OStatus users that don't follow us.
496
497         if ($slap && count($url_recipients) && ($public_message || $push_notify) && $normal_mode) {
498                 if (!get_config('system','dfrn_only')) {
499                         foreach ($url_recipients as $url) {
500                                 if ($url) {
501                                         logger('notifier: urldelivery: ' . $url);
502                                         $deliver_status = slapper($owner,$url,$slap);
503                                         /// @TODO Redeliver/queue these items on failure, though there is no contact record
504                                 }
505                         }
506                 }
507         }
508
509
510         if ($public_message) {
511
512                 $r0 = array();
513                 $r1 = array();
514
515                 if ($diaspora_delivery) {
516                         if (!$followup) {
517                                 $r0 = Diaspora::relay_list();
518                         }
519
520                         $r1 = q("SELECT `batch`, ANY_VALUE(`id`) AS `id`, ANY_VALUE(`name`) AS `name`, ANY_VALUE(`network`) AS `network`
521                                 FROM `contact` WHERE `network` = '%s'
522                                 AND `uid` = %d AND `rel` != %d AND NOT `blocked` AND NOT `pending` AND NOT `archive` GROUP BY `batch` ORDER BY rand()",
523                                 dbesc(NETWORK_DIASPORA),
524                                 intval($owner['uid']),
525                                 intval(CONTACT_IS_SHARING)
526                         );
527                 }
528
529                 $r2 = q("SELECT `id`, `name`,`network` FROM `contact`
530                         WHERE `network` in ( '%s', '%s')  AND `uid` = %d AND NOT `blocked` AND NOT `pending` AND NOT `archive`
531                         AND `rel` != %d order by rand() ",
532                         dbesc(NETWORK_DFRN),
533                         dbesc(NETWORK_MAIL2),
534                         intval($owner['uid']),
535                         intval(CONTACT_IS_SHARING)
536                 );
537
538                 $r = array_merge($r2,$r1,$r0);
539
540                 if (dbm::is_result($r)) {
541                         logger('pubdeliver '.$target_item["guid"].': '.print_r($r,true), LOGGER_DEBUG);
542
543                         foreach ($r as $rr) {
544
545                                 // except for Diaspora batch jobs
546                                 // Don't deliver to folks who have already been delivered to
547
548                                 if (($rr['network'] !== NETWORK_DIASPORA) && (in_array($rr['id'],$conversants))) {
549                                         logger('notifier: already delivered id=' . $rr['id']);
550                                         continue;
551                                 }
552
553                                 if ((! $mail) && (! $fsuggest) && (! $followup)) {
554                                         logger('notifier: delivery agent: '.$rr['name'].' '.$rr['id'].' '.$rr['network'].' '.$target_item["guid"]);
555                                         proc_run(PRIORITY_HIGH,'include/delivery.php',$cmd,$item_id,$rr['id']);
556                                 }
557                         }
558                 }
559
560                 $push_notify = true;
561
562         }
563
564         // Notify PuSH subscribers (Used for OStatus distribution of regular posts)
565         if ($push_notify AND strlen($hub)) {
566                 $hubs = explode(',', $hub);
567                 if (count($hubs)) {
568                         foreach ($hubs as $h) {
569                                 $h = trim($h);
570                                 if (! strlen($h)) {
571                                         continue;
572                                 }
573
574                                 if ($h === '[internal]') {
575                                         // Set push flag for PuSH subscribers to this topic,
576                                         // they will be notified in queue.php
577                                         q("UPDATE `push_subscriber` SET `push` = 1 ".
578                                           "WHERE `nickname` = '%s' AND `push` = 0", dbesc($owner['nickname']));
579
580                                         logger('Activating internal PuSH for item '.$item_id, LOGGER_DEBUG);
581
582                                 } else {
583
584                                         $params = 'hub.mode=publish&hub.url=' . urlencode( App::get_baseurl() . '/dfrn_poll/' . $owner['nickname'] );
585                                         post_url($h,$params);
586                                         logger('publish for item '.$item_id.' ' . $h . ' ' . $params . ' returned ' . $a->get_curl_code());
587                                 }
588                                 if (count($hubs) > 1) {
589                                         sleep(7);                               // try and avoid multiple hubs responding at precisely the same time
590                                 }
591                         }
592                 }
593
594                 // Handling the pubsubhubbub requests
595                 proc_run(PRIORITY_HIGH,'include/pubsubpublish.php');
596         }
597
598         logger('notifier: calling hooks', LOGGER_DEBUG);
599
600         if ($normal_mode) {
601                 call_hooks('notifier_normal',$target_item);
602         }
603
604         call_hooks('notifier_end',$target_item);
605
606         return;
607 }