3 * @copyright Copyright (C) 2010-2022, the Friendica project
5 * @license GNU AGPL version 3 or any later version
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU Affero General Public License as
9 * published by the Free Software Foundation, either version 3 of the
10 * License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU Affero General Public License for more details.
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <https://www.gnu.org/licenses/>.
22 namespace Friendica\Worker;
24 use Friendica\Core\Hook;
25 use Friendica\Core\Logger;
26 use Friendica\Core\Protocol;
27 use Friendica\Core\Worker;
28 use Friendica\Database\DBA;
30 use Friendica\Model\Contact;
31 use Friendica\Model\Conversation;
32 use Friendica\Model\Group;
33 use Friendica\Model\Item;
34 use Friendica\Model\Post;
35 use Friendica\Model\PushSubscriber;
36 use Friendica\Model\Tag;
37 use Friendica\Model\User;
38 use Friendica\Protocol\Activity;
39 use Friendica\Protocol\ActivityPub;
40 use Friendica\Protocol\Diaspora;
41 use Friendica\Protocol\OStatus;
42 use Friendica\Protocol\Salmon;
43 use Friendica\Util\Network;
44 use Friendica\Util\Strings;
47 * The notifier is typically called with:
49 * Worker::add(PRIORITY_HIGH, "Notifier", COMMAND, ITEM_ID);
51 * where COMMAND is one of the constants that are defined in Worker/Delivery.php
52 * and ITEM_ID is the id of the item in the database that needs to be sent to others.
57 public static function execute(string $cmd, int $post_uriid, int $sender_uid = 0)
61 Logger::info('Invoked', ['cmd' => $cmd, 'target' => $post_uriid, 'sender_uid' => $sender_uid]);
63 $target_id = $post_uriid;
68 $delivery_contacts_stmt = null;
73 $delivery_queue_count = 0;
76 if ($cmd == Delivery::MAIL) {
77 $message = DBA::selectFirst('mail', ['uid', 'contact-id'], ['id' => $target_id]);
78 if (!DBA::isResult($message)) {
81 $uid = $message['uid'];
82 $recipients[] = $message['contact-id'];
84 $mail = ActivityPub\Transmitter::getItemArrayFromMail($target_id);
85 $inboxes = ActivityPub\Transmitter::fetchTargetInboxes($mail, $uid, true);
86 foreach ($inboxes as $inbox => $receivers) {
87 $ap_contacts = array_merge($ap_contacts, $receivers);
88 Logger::info('Delivery via ActivityPub', ['cmd' => $cmd, 'target' => $target_id, 'inbox' => $inbox]);
89 Worker::add(['priority' => Worker::PRIORITY_HIGH, 'created' => $a->getQueueValue('created'), 'dont_fork' => true],
90 'APDelivery', $cmd, $target_id, $inbox, $uid, $receivers, $post_uriid);
92 } elseif ($cmd == Delivery::SUGGESTION) {
93 $suggest = DI::fsuggest()->selectOneById($target_id);
95 $recipients[] = $suggest->cid;
96 } elseif ($cmd == Delivery::REMOVAL) {
97 return self::notifySelfRemoval($target_id, $a->getQueueValue('priority'), $a->getQueueValue('created'));
98 } elseif ($cmd == Delivery::RELOCATION) {
101 $condition = ['uid' => $target_id, 'self' => false, 'network' => [Protocol::DFRN, Protocol::DIASPORA]];
102 $delivery_contacts_stmt = DBA::select('contact', ['id', 'url', 'addr', 'network', 'protocol', 'batch'], $condition);
104 $post = Post::selectFirst(['id'], ['uri-id' => $post_uriid, 'uid' => $sender_uid]);
105 if (!DBA::isResult($post)) {
106 Logger::warning('Post not found', ['uri-id' => $post_uriid, 'uid' => $sender_uid]);
109 $target_id = $post['id'];
112 $condition = ['id' => $target_id, 'visible' => true];
113 $target_item = Post::selectFirst(Item::DELIVER_FIELDLIST, $condition);
115 if (!DBA::isResult($target_item) || !intval($target_item['parent'])) {
116 Logger::info('No target item', ['cmd' => $cmd, 'target' => $target_id]);
120 if (!empty($target_item['contact-uid'])) {
121 $uid = $target_item['contact-uid'];
122 } elseif (!empty($target_item['uid'])) {
123 $uid = $target_item['uid'];
125 Logger::info('Only public users, quitting', ['target' => $target_id]);
129 $condition = ['parent' => $target_item['parent'], 'visible' => true];
130 $params = ['order' => ['id']];
131 $items_stmt = Post::select(Item::DELIVER_FIELDLIST, $condition, $params);
132 if (!DBA::isResult($items_stmt)) {
133 Logger::info('No item found', ['cmd' => $cmd, 'target' => $target_id]);
137 $items = Post::toArray($items_stmt);
139 // avoid race condition with deleting entries
140 if ($items[0]['deleted']) {
141 foreach ($items as $item) {
142 $item['deleted'] = 1;
146 $top_level = $target_item['gravity'] == Item::GRAVITY_PARENT;
149 $owner = User::getOwnerDataById($uid);
151 Logger::info('Owner not found', ['cmd' => $cmd, 'target' => $target_id]);
155 // Should the post be transmitted to Diaspora?
156 $diaspora_delivery = ($owner['account-type'] != User::ACCOUNT_TYPE_COMMUNITY);
158 // If this is a public conversation, notify the feed hub
159 $public_message = true;
164 $push_notify = false;
166 // Deliver directly to a forum, don't PuSH
167 $direct_forum_delivery = false;
170 $recipients_followup = [];
172 if (!empty($target_item) && !empty($items)) {
175 $fields = ['network', 'author-id', 'author-link', 'author-network', 'owner-id'];
176 $condition = ['uri' => $target_item['thr-parent'], 'uid' => $target_item['uid']];
177 $thr_parent = Post::selectFirst($fields, $condition);
178 if (empty($thr_parent)) {
179 $thr_parent = $parent;
182 Logger::info('Got post', ['guid' => $target_item['guid'], 'uri-id' => $target_item['uri-id'], 'network' => $target_item['network'], 'parent-network' => $parent['network'], 'thread-parent-network' => $thr_parent['network']]);
184 if (!self::isRemovalActivity($cmd, $owner, Protocol::ACTIVITYPUB)) {
185 $apdelivery = self::activityPubDelivery($cmd, $target_item, $parent, $thr_parent, $a->getQueueValue('priority'), $a->getQueueValue('created'), $owner);
186 $ap_contacts = $apdelivery['contacts'];
187 $delivery_queue_count += $apdelivery['count'];
190 // Only deliver threaded replies (comment to a comment) to Diaspora
191 // when the original comment author does support the Diaspora protocol.
192 if ($thr_parent['author-link'] && $target_item['parent-uri'] != $target_item['thr-parent']) {
193 $diaspora_delivery = Diaspora::isSupportedByContactUrl($thr_parent['author-link']);
194 if ($diaspora_delivery && empty($target_item['signed_text'])) {
195 Logger::debug('Post has got no Diaspora signature, so there will be no Diaspora delivery', ['guid' => $target_item['guid'], 'uri-id' => $target_item['uri-id']]);
196 $diaspora_delivery = false;
198 Logger::info('Threaded comment', ['diaspora_delivery' => (int)$diaspora_delivery]);
201 $unlisted = $target_item['private'] == Item::UNLISTED;
203 // This is IMPORTANT!!!!
205 // We will only send a "notify owner to relay" or followup message if the referenced post
206 // originated on our system by virtue of having our hostname somewhere
207 // in the URI, AND it was a comment (not top_level) AND the parent originated elsewhere.
209 // if $parent['wall'] == 1 we will already have the parent message in our array
210 // and we will relay the whole lot.
212 $localhost = str_replace('www.','', DI::baseUrl()->getHostname());
213 if (strpos($localhost,':')) {
214 $localhost = substr($localhost,0,strpos($localhost,':'));
218 * Be VERY CAREFUL if you make any changes to the following several lines. Seemingly innocuous changes
219 * have been known to cause runaway conditions which affected several servers, along with
220 * permissions issues.
224 $relay_to_owner = false;
226 if (!$top_level && ($parent['wall'] == 0) && (stristr($target_item['uri'],$localhost))) {
227 $relay_to_owner = true;
230 // until the 'origin' flag has been in use for several months
231 // we will just use it as a fallback test
232 // later we will be able to use it as the primary test of whether or not to relay.
234 if (!$target_item['origin']) {
235 $relay_to_owner = false;
237 if ($parent['origin']) {
238 $relay_to_owner = false;
241 // Special treatment for forum posts
242 if (Item::isForumPost($target_item['uri-id'])) {
243 $relay_to_owner = true;
244 $direct_forum_delivery = true;
247 // Avoid that comments in a forum thread are sent to OStatus
248 if (Item::isForumPost($parent['uri-id'])) {
249 $direct_forum_delivery = true;
252 $exclusive_delivery = false;
254 $exclusive_targets = Tag::getByURIId($parent['uri-id'], [Tag::EXCLUSIVE_MENTION]);
255 if (!empty($exclusive_targets)) {
256 $exclusive_delivery = true;
257 Logger::info('Possible Exclusively delivering', ['uid' => $target_item['uid'], 'guid' => $target_item['guid'], 'uri-id' => $target_item['uri-id']]);
258 foreach ($exclusive_targets as $target) {
259 if (Strings::compareLink($owner['url'], $target['url'])) {
260 $exclusive_delivery = false;
261 Logger::info('False Exclusively delivering', ['uid' => $target_item['uid'], 'guid' => $target_item['guid'], 'uri-id' => $target_item['uri-id'], 'url' => $target['url']]);
266 if ($relay_to_owner) {
267 // local followup to remote post
269 $public_message = false; // not public
270 $recipients = [$parent['contact-id']];
271 $recipients_followup = [$parent['contact-id']];
273 Logger::info('Followup', ['target' => $target_id, 'guid' => $target_item['guid'], 'to' => $parent['contact-id']]);
275 if (($target_item['private'] != Item::PRIVATE) &&
276 (strlen($target_item['allow_cid'].$target_item['allow_gid'].
277 $target_item['deny_cid'].$target_item['deny_gid']) == 0))
280 if (($thr_parent && ($thr_parent['network'] == Protocol::OSTATUS)) || ($parent['network'] == Protocol::OSTATUS)) {
283 if ($parent["network"] == Protocol::OSTATUS) {
284 // Distribute the message to the DFRN contacts as if this wasn't a followup since OStatus can't relay comments
285 // Currently it is work at progress
286 $condition = ['uid' => $uid, 'network' => Protocol::DFRN, 'blocked' => false, 'pending' => false, 'archive' => false];
287 $followup_contacts_stmt = DBA::select('contact', ['id'], $condition);
288 while($followup_contact = DBA::fetch($followup_contacts_stmt)) {
289 $recipients_followup[] = $followup_contact['id'];
291 DBA::close($followup_contacts_stmt);
295 if ($direct_forum_delivery) {
296 $push_notify = false;
299 Logger::info('Notify ' . $target_item["guid"] .' via PuSH: ' . ($push_notify ? "Yes":"No"));
300 } elseif ($exclusive_delivery) {
303 foreach ($exclusive_targets as $target) {
304 $cid = Contact::getIdForURL($target['url'], $uid, false);
306 $recipients_followup[] = $cid;
307 Logger::info('Exclusively delivering', ['uid' => $target_item['uid'], 'guid' => $target_item['guid'], 'uri-id' => $target_item['uri-id'], 'url' => $target['url']]);
313 Logger::info('Distributing directly', ['target' => $target_id, 'guid' => $target_item['guid']]);
315 // don't send deletions onward for other people's stuff
317 if ($target_item['deleted'] && !intval($target_item['wall'])) {
318 Logger::notice('Ignoring delete notification for non-wall item');
322 if (strlen($parent['allow_cid'])
323 || strlen($parent['allow_gid'])
324 || strlen($parent['deny_cid'])
325 || strlen($parent['deny_gid'])) {
326 $public_message = false; // private recipients, not public
329 $aclFormatter = DI::aclFormatter();
331 $allow_people = $aclFormatter->expand($parent['allow_cid']);
332 $allow_groups = Group::expand($uid, $aclFormatter->expand($parent['allow_gid']),true);
333 $deny_people = $aclFormatter->expand($parent['deny_cid']);
334 $deny_groups = Group::expand($uid, $aclFormatter->expand($parent['deny_gid']));
336 foreach ($items as $item) {
337 $recipients[] = $item['contact-id'];
338 // pull out additional tagged people to notify (if public message)
339 if ($public_message && strlen($item['inform'])) {
340 $people = explode(',',$item['inform']);
341 foreach ($people as $person) {
342 if (substr($person,0,4) === 'cid:') {
343 $recipients[] = intval(substr($person,4));
345 $url_recipients[] = substr($person,4);
351 if (count($url_recipients)) {
352 Logger::notice('Deliver', ['target' => $target_id, 'guid' => $target_item['guid'], 'recipients' => $url_recipients]);
355 $recipients = array_unique(array_merge($recipients, $allow_people, $allow_groups));
356 $deny = array_unique(array_merge($deny_people, $deny_groups));
357 $recipients = array_diff($recipients, $deny);
359 // If this is a public message and pubmail is set on the parent, include all your email contacts
361 function_exists('imap_open')
362 && !DI::config()->get('system','imap_disabled')
364 && intval($target_item['pubmail'])
366 $mail_contacts_stmt = DBA::select('contact', ['id'], ['uid' => $uid, 'network' => Protocol::MAIL]);
367 while ($mail_contact = DBA::fetch($mail_contacts_stmt)) {
368 $recipients[] = $mail_contact['id'];
370 DBA::close($mail_contacts_stmt);
374 // If the thread parent is OStatus then do some magic to distribute the messages.
375 // We have not only to look at the parent, since it could be a Friendica thread.
376 if (($thr_parent && ($thr_parent['network'] == Protocol::OSTATUS)) || ($parent['network'] == Protocol::OSTATUS)) {
377 $diaspora_delivery = false;
379 Logger::info('Some parent is OStatus for ' . $target_item['guid'] . ' - Author: ' . $thr_parent['author-id'] . ' - Owner: ' . $thr_parent['owner-id']);
381 // Send a salmon to the parent author
382 $probed_contact = DBA::selectFirst('contact', ['url', 'notify'], ['id' => $thr_parent['author-id']]);
383 if (DBA::isResult($probed_contact) && !empty($probed_contact['notify'])) {
384 Logger::notice('Notify parent author', ['url' => $probed_contact['url'], 'notify' => $probed_contact['notify']]);
385 $url_recipients[$probed_contact['notify']] = $probed_contact['notify'];
388 // Send a salmon to the parent owner
389 $probed_contact = DBA::selectFirst('contact', ['url', 'notify'], ['id' => $thr_parent['owner-id']]);
390 if (DBA::isResult($probed_contact) && !empty($probed_contact['notify'])) {
391 Logger::notice('Notify parent owner', ['url' => $probed_contact['url'], 'notify' => $probed_contact['notify']]);
392 $url_recipients[$probed_contact['notify']] = $probed_contact['notify'];
395 // Send a salmon notification to every person we mentioned in the post
396 foreach (Tag::getByURIId($target_item['uri-id'], [Tag::MENTION, Tag::EXCLUSIVE_MENTION, Tag::IMPLICIT_MENTION]) as $tag) {
397 $probed_contact = Contact::getByURL($tag['url']);
398 if (!empty($probed_contact['notify'])) {
399 Logger::notice('Notify mentioned user', ['url' => $probed_contact['url'], 'notify' => $probed_contact['notify']]);
400 $url_recipients[$probed_contact['notify']] = $probed_contact['notify'];
404 // It only makes sense to distribute answers to OStatus messages to Friendica and OStatus - but not Diaspora
405 $networks = [Protocol::DFRN];
406 } elseif ($diaspora_delivery) {
407 $networks = [Protocol::DFRN, Protocol::DIASPORA, Protocol::MAIL];
408 if (($parent['network'] == Protocol::DIASPORA) || ($thr_parent['network'] == Protocol::DIASPORA)) {
409 Logger::info('Add AP contacts', ['target' => $target_id, 'guid' => $target_item['guid']]);
410 $networks[] = Protocol::ACTIVITYPUB;
413 $networks = [Protocol::DFRN, Protocol::MAIL];
416 $public_message = false;
419 if (empty($delivery_contacts_stmt)) {
421 $recipients = $recipients_followup;
423 $condition = ['id' => $recipients, 'self' => false, 'uid' => [0, $uid],
424 'blocked' => false, 'pending' => false, 'archive' => false];
425 if (!empty($networks)) {
426 $condition['network'] = $networks;
428 $delivery_contacts_stmt = DBA::select('contact', ['id', 'addr', 'url', 'network', 'protocol', 'batch'], $condition);
432 $batch_delivery = false;
434 if ($public_message && !in_array($cmd, [Delivery::MAIL, Delivery::SUGGESTION]) && !$followup) {
437 if ($diaspora_delivery && !$unlisted) {
438 $batch_delivery = true;
440 $participants = DBA::selectToArray('contact', ['batch', 'network', 'protocol', 'id', 'url', 'name'],
441 ["`network` = ? AND `batch` != '' AND `uid` = ? AND `rel` != ? AND NOT `blocked` AND NOT `pending` AND NOT `archive`", Protocol::DIASPORA, $owner['uid'], Contact::SHARING],
442 ['group_by' => ['batch', 'network', 'protocol']]);
444 // Fetch the participation list
445 // The function will ensure that there are no duplicates
446 $participants = Diaspora::participantsForThread($target_item, $participants);
449 $condition = ['network' => Protocol::DFRN, 'uid' => $owner['uid'], 'blocked' => false,
450 'pending' => false, 'archive' => false, 'rel' => [Contact::FOLLOWER, Contact::FRIEND]];
452 $contacts = DBA::selectToArray('contact', ['id', 'url', 'addr', 'name', 'network', 'protocol'], $condition);
454 $conversants = array_merge($contacts, $participants);
456 $delivery_queue_count += self::delivery($cmd, $post_uriid, $sender_uid, $target_item, $thr_parent, $owner, $batch_delivery, true, $conversants, $ap_contacts, []);
461 $contacts = DBA::toArray($delivery_contacts_stmt);
462 $delivery_queue_count += self::delivery($cmd, $post_uriid, $sender_uid, $target_item, $thr_parent, $owner, $batch_delivery, false, $contacts, $ap_contacts, $conversants);
464 $delivery_queue_count += self::deliverOStatus($target_id, $target_item, $owner, $url_recipients, $public_message, $push_notify);
466 if (!empty($target_item)) {
467 Logger::info('Calling hooks for ' . $cmd . ' ' . $target_id);
469 Hook::fork($a->getQueueValue('priority'), 'notifier_normal', $target_item);
471 Hook::callAll('notifier_end', $target_item);
473 // Workaround for pure connector posts
474 if ($cmd == Delivery::POST) {
475 if ($delivery_queue_count == 0) {
476 Post\DeliveryData::incrementQueueDone($target_item['uri-id']);
477 $delivery_queue_count = 1;
480 Post\DeliveryData::incrementQueueCount($target_item['uri-id'], $delivery_queue_count);
488 * Deliver the message to the contacts
491 * @param int $post_uriid
492 * @param int $sender_uid
493 * @param array $target_item
494 * @param array $thr_parent
495 * @param array $owner
496 * @param bool $batch_delivery
497 * @param array $contacts
498 * @param array $ap_contacts
499 * @param array $conversants
501 * @return int Count of delivery queue
502 * @throws InternalServerErrorException
505 private static function delivery(string $cmd, int $post_uriid, int $sender_uid, array $target_item, array $thr_parent, array $owner, bool $batch_delivery, bool $in_batch, array $contacts, array $ap_contacts, array $conversants = []): int
508 $delivery_queue_count = 0;
510 if (!empty($target_item['verb']) && ($target_item['verb'] == Activity::ANNOUNCE)) {
511 Logger::notice('Announces are only delivery via ActivityPub', ['cmd' => $cmd, 'id' => $target_item['id'], 'guid' => $target_item['guid'], 'uri-id' => $target_item['uri-id'], 'uri' => $target_item['uri']]);
515 foreach ($contacts as $contact) {
516 // Direct delivery of local contacts
517 if (!in_array($cmd, [Delivery::RELOCATION, Delivery::SUGGESTION, Delivery::DELETION, Delivery::MAIL]) && $target_uid = User::getIdForURL($contact['url'])) {
518 if ($target_item['origin'] || ($target_item['network'] != Protocol::ACTIVITYPUB)) {
519 if ($target_uid != $target_item['uid']) {
520 $fields = ['protocol' => Conversation::PARCEL_LOCAL_DFRN, 'direction' => Conversation::PUSH, 'post-reason' => Item::PR_DIRECT];
521 Item::storeForUserByUriId($target_item['uri-id'], $target_uid, $fields, $target_item['uid']);
522 Logger::info('Delivered locally', ['cmd' => $cmd, 'id' => $target_item['id'], 'target' => $target_uid]);
524 Logger::info('No need to deliver to myself', ['uid' => $target_uid, 'guid' => $target_item['guid'], 'uri-id' => $target_item['uri-id'], 'uri' => $target_item['uri']]);
527 Logger::info('Remote item does not need to be delivered locally', ['guid' => $target_item['guid'], 'uri-id' => $target_item['uri-id'], 'uri' => $target_item['uri']]);
532 // Deletions are always sent via DFRN as well.
533 // This is done until we can perform deletions of foreign comments on our own threads via AP.
534 if (($cmd != Delivery::DELETION) && in_array($contact['id'], $ap_contacts)) {
535 Logger::info('Contact is already delivered via AP, so skip delivery via legacy DFRN/Diaspora', ['target' => $post_uriid, 'uid' => $sender_uid, 'contact' => $contact['url']]);
539 if (!empty($contact['id']) && Contact::isArchived($contact['id'])) {
540 Logger::info('Contact is archived, so skip delivery', ['target' => $post_uriid, 'uid' => $sender_uid, 'contact' => $contact['url']]);
544 if (self::isRemovalActivity($cmd, $owner, $contact['network'])) {
545 Logger::info('Contact does no supports account removal commands, so skip delivery', ['target' => $post_uriid, 'uid' => $sender_uid, 'contact' => $contact['url']]);
549 if (self::skipActivityPubForDiaspora($contact, $target_item, $thr_parent)) {
550 Logger::info('Contact is from Diaspora, but the replied author is from ActivityPub, so skip delivery via Diaspora', ['id' => $post_uriid, 'uid' => $sender_uid, 'url' => $contact['url']]);
554 // Don't deliver to Diaspora if it already had been done as batch delivery
555 if (!$in_batch && $batch_delivery && ($contact['network'] == Protocol::DIASPORA)) {
556 Logger::info('Diaspora contact is already delivered via batch', ['id' => $post_uriid, 'uid' => $sender_uid, 'contact' => $contact]);
560 // Don't deliver to folks who have already been delivered to
561 if (in_array($contact['id'], $conversants)) {
562 Logger::info('Already delivery', ['id' => $post_uriid, 'uid' => $sender_uid, 'contact' => $contact]);
566 Logger::info('Delivery', ['batch' => $in_batch, 'target' => $post_uriid, 'uid' => $sender_uid, 'guid' => $target_item['guid'] ?? '', 'to' => $contact]);
568 // Ensure that posts with our own protocol arrives before Diaspora posts arrive.
569 // Situation is that sometimes Friendica servers receive Friendica posts over the Diaspora protocol first.
570 // The conversion in Markdown reduces the formatting, so these posts should arrive after the Friendica posts.
571 // This is only important for high and medium priority tasks and not for Low priority jobs like deletions.
572 if (($contact['network'] == Protocol::DIASPORA) && in_array($a->getQueueValue('priority'), [Worker::PRIORITY_HIGH, Worker::PRIORITY_MEDIUM])) {
573 $deliver_options = ['priority' => $a->getQueueValue('priority'), 'dont_fork' => true];
575 $deliver_options = ['priority' => $a->getQueueValue('priority'), 'created' => $a->getQueueValue('created'), 'dont_fork' => true];
578 if (Worker::add($deliver_options, 'Delivery', $cmd, $post_uriid, (int)$contact['id'], $sender_uid)) {
579 $delivery_queue_count++;
583 return $delivery_queue_count;
587 * Deliver the message via OStatus
589 * @param int $target_id
590 * @param array $target_item
591 * @param array $owner
592 * @param array $url_recipients
593 * @param bool $public_message
594 * @param bool $push_notify
596 * @return int Count of sent Salmon notifications
597 * @throws InternalServerErrorException
600 private static function deliverOStatus(int $target_id, array $target_item, array $owner, array $url_recipients, bool $public_message, bool $push_notify): int
603 $delivery_queue_count = 0;
605 $url_recipients = array_filter($url_recipients);
606 // send salmon slaps to mentioned remote tags (@foo@example.com) in OStatus posts
607 // They are especially used for notifications to OStatus users that don't follow us.
608 if (count($url_recipients) && ($public_message || $push_notify) && !empty($target_item)) {
609 $slap = OStatus::salmon($target_item, $owner);
610 foreach ($url_recipients as $url) {
611 Logger::info('Salmon delivery', ['item' => $target_id, 'to' => $url]);
613 $delivery_queue_count++;
614 Salmon::slapper($owner, $url, $slap);
615 Post\DeliveryData::incrementQueueDone($target_item['uri-id'], Post\DeliveryData::OSTATUS);
619 // Notify PuSH subscribers (Used for OStatus distribution of regular posts)
621 Logger::info('Activating internal PuSH', ['uid' => $owner['uid']]);
623 // Handling the pubsubhubbub requests
624 PushSubscriber::publishFeed($owner['uid'], $a->getQueueValue('priority'));
626 return $delivery_queue_count;
630 * Checks if the current delivery shouldn't be transported to Diaspora.
631 * This is done for posts from AP authors or posts that are comments to AP authors.
633 * @param array $contact Receiver of the post
634 * @param array $item The post
635 * @param array $thr_parent The thread parent
639 private static function skipActivityPubForDiaspora(array $contact, array $item, array $thr_parent): bool
641 // No skipping needs to be done when delivery isn't done to Diaspora
642 if ($contact['network'] != Protocol::DIASPORA) {
646 // Skip the delivery to Diaspora if the item is from an ActivityPub author
647 if (!empty($item['author-network']) && ($item['author-network'] == Protocol::ACTIVITYPUB)) {
651 // Skip the delivery to Diaspora if the thread parent is from an ActivityPub author
652 if (!empty($thr_parent['author-network']) && ($thr_parent['author-network'] == Protocol::ACTIVITYPUB)) {
660 * Checks if the current action is a deletion command of a account removal activity
661 * For Diaspora and ActivityPub we don't need to send single item deletion calls.
662 * These protocols do have a dedicated command for deleting a whole account.
664 * @param string $cmd Notifier command
665 * @param array $owner Sender of the post
666 * @param string $network Receiver network
669 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
670 * @throws \ImagickException
672 private static function isRemovalActivity(string $cmd, array $owner, string $network): bool
674 return ($cmd == Delivery::DELETION) && $owner['account_removed'] && in_array($network, [Protocol::ACTIVITYPUB, Protocol::DIASPORA]);
678 * @param int $self_user_id
679 * @param int $priority The priority the Notifier queue item was created with
680 * @param string $created The date the Notifier queue item was created on
683 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
684 * @throws \ImagickException
686 private static function notifySelfRemoval(int $self_user_id, int $priority, string $created): bool
688 $owner = User::getOwnerDataById($self_user_id);
689 if (empty($self_user_id) || empty($owner)) {
693 $contacts_stmt = DBA::select('contact', [], ['self' => false, 'uid' => $self_user_id]);
694 if (!DBA::isResult($contacts_stmt)) {
698 while($contact = DBA::fetch($contacts_stmt)) {
699 Contact::terminateFriendship($contact);
701 DBA::close($contacts_stmt);
703 $inboxes = ActivityPub\Transmitter::fetchTargetInboxesforUser($self_user_id);
704 foreach ($inboxes as $inbox => $receivers) {
705 Logger::info('Account removal via ActivityPub', ['uid' => $self_user_id, 'inbox' => $inbox]);
706 Worker::add(['priority' => Worker::PRIORITY_NEGLIGIBLE, 'created' => $created, 'dont_fork' => true],
707 'APDelivery', Delivery::REMOVAL, 0, $inbox, $self_user_id, $receivers);
716 * @param array $target_item
717 * @param array $parent
718 * @param array $thr_parent
719 * @param int $priority The priority the Notifier queue item was created with
720 * @param string $created The date the Notifier queue item was created on
722 * @return array 'count' => The number of delivery tasks created, 'contacts' => their contact ids
723 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
724 * @throws \ImagickException
725 * @todo Unused parameter $owner
727 private static function activityPubDelivery($cmd, array $target_item, array $parent, array $thr_parent, int $priority, string $created, $owner): array
729 // Don't deliver via AP when the starting post isn't from a federated network
730 if (!in_array($parent['network'], Protocol::FEDERATED)) {
731 Logger::info('Parent network is no federated network, so no AP delivery', ['network' => $parent['network']]);
732 return ['count' => 0, 'contacts' => []];
735 // Don't deliver via AP when the starting post is delivered via Diaspora
736 if ($parent['network'] == Protocol::DIASPORA) {
737 Logger::info('Parent network is Diaspora, so no AP delivery');
738 return ['count' => 0, 'contacts' => []];
741 // Also don't deliver when the direct thread parent was delivered via Diaspora
742 if ($thr_parent['network'] == Protocol::DIASPORA) {
743 Logger::info('Thread parent network is Diaspora, so no AP delivery');
744 return ['count' => 0, 'contacts' => []];
747 // Posts from Diaspora contacts are transmitted via Diaspora
748 if ($target_item['network'] == Protocol::DIASPORA) {
749 Logger::info('Post network is Diaspora, so no AP delivery');
750 return ['count' => 0, 'contacts' => []];
756 $uid = $target_item['contact-uid'] ?: $target_item['uid'];
758 // Update the locally stored follower list when we deliver to a forum
759 foreach (Tag::getByURIId($target_item['uri-id'], [Tag::MENTION, Tag::EXCLUSIVE_MENTION]) as $tag) {
760 $target_contact = Contact::getByURL(Strings::normaliseLink($tag['url']), null, [], $uid);
761 if ($target_contact && $target_contact['contact-type'] == Contact::TYPE_COMMUNITY && $target_contact['manually-approve']) {
762 Group::updateMembersForForum($target_contact['id']);
766 if ($target_item['origin']) {
767 $inboxes = ActivityPub\Transmitter::fetchTargetInboxes($target_item, $uid);
769 if (in_array($target_item['private'], [Item::PUBLIC])) {
770 $inboxes = ActivityPub\Transmitter::addRelayServerInboxesForItem($target_item['id'], $inboxes);
771 $relay_inboxes = ActivityPub\Transmitter::addRelayServerInboxes();
774 Logger::info('Origin item ' . $target_item['id'] . ' with URL ' . $target_item['uri'] . ' will be distributed.');
775 } elseif (!Post\Activity::exists($target_item['uri-id'])) {
776 Logger::info('Remote item ' . $target_item['id'] . ' with URL ' . $target_item['uri'] . ' is no AP post. It will not be distributed.');
777 return ['count' => 0, 'contacts' => []];
778 } elseif ($parent['origin']) {
779 $inboxes = ActivityPub\Transmitter::fetchTargetInboxes($parent, $uid, false, $target_item['id']);
781 if (in_array($target_item['private'], [Item::PUBLIC])) {
782 $inboxes = ActivityPub\Transmitter::addRelayServerInboxesForItem($parent['id'], $inboxes);
785 Logger::info('Remote item ' . $target_item['id'] . ' with URL ' . $target_item['uri'] . ' will be distributed.');
788 if (empty($inboxes) && empty($relay_inboxes)) {
789 Logger::info('No inboxes found for item ' . $target_item['id'] . ' with URL ' . $target_item['uri'] . '. It will not be distributed.');
790 return ['count' => 0, 'contacts' => []];
793 // Fill the item cache
794 ActivityPub\Transmitter::createCachedActivityFromItem($target_item['id'], true);
796 $delivery_queue_count = 0;
799 foreach ($inboxes as $inbox => $receivers) {
800 $contacts = array_merge($contacts, $receivers);
802 if ((count($receivers) == 1) && Network::isLocalLink($inbox)) {
803 $contact = Contact::getById($receivers[0], ['url']);
804 if (!in_array($cmd, [Delivery::RELOCATION, Delivery::SUGGESTION, Delivery::DELETION, Delivery::MAIL]) && ($target_uid = User::getIdForURL($contact['url']))) {
805 if ($target_item['origin'] || ($target_item['network'] != Protocol::ACTIVITYPUB)) {
806 if ($target_uid != $target_item['uid']) {
807 $fields = ['protocol' => Conversation::PARCEL_LOCAL_DFRN, 'direction' => Conversation::PUSH, 'post-reason' => Item::PR_BCC];
808 Item::storeForUserByUriId($target_item['uri-id'], $target_uid, $fields, $target_item['uid']);
809 Logger::info('Delivered locally', ['cmd' => $cmd, 'id' => $target_item['id'], 'inbox' => $inbox]);
811 Logger::info('No need to deliver to myself', ['uid' => $target_uid, 'guid' => $target_item['guid'], 'uri-id' => $target_item['uri-id'], 'uri' => $target_item['uri']]);
814 Logger::info('Remote item does not need to be delivered locally', ['guid' => $target_item['guid'], 'uri-id' => $target_item['uri-id'], 'uri' => $target_item['uri']]);
818 } elseif ((count($receivers) >= 1) && Network::isLocalLink($inbox)) {
819 Logger::info('Is this a thing?', ['guid' => $target_item['guid'], 'uri-id' => $target_item['uri-id'], 'uri' => $target_item['uri']]);
822 Logger::info('Delivery via ActivityPub', ['cmd' => $cmd, 'id' => $target_item['id'], 'inbox' => $inbox]);
824 if (DI::config()->get('system', 'bulk_delivery')) {
825 $delivery_queue_count++;
826 Post\Delivery::add($target_item['uri-id'], $uid, $inbox, $target_item['created'], $cmd, $receivers);
827 Worker::add(Worker::PRIORITY_HIGH, 'APDelivery', '', 0, $inbox, 0);
829 if (Worker::add(['priority' => $priority, 'created' => $created, 'dont_fork' => true],
830 'APDelivery', $cmd, $target_item['id'], $inbox, $uid, $receivers, $target_item['uri-id'])) {
831 $delivery_queue_count++;
837 // We deliver posts to relay servers slightly delayed to priorize the direct delivery
838 foreach ($relay_inboxes as $inbox) {
839 Logger::info('Delivery to relay servers via ActivityPub', ['cmd' => $cmd, 'id' => $target_item['id'], 'inbox' => $inbox]);
841 if (DI::config()->get('system', 'bulk_delivery')) {
842 $delivery_queue_count++;
843 Post\Delivery::add($target_item['uri-id'], $uid, $inbox, $target_item['created'], $cmd, []);
844 Worker::add(Worker::PRIORITY_MEDIUM, 'APDelivery', '', 0, $inbox, 0);
846 if (Worker::add(['priority' => $priority, 'dont_fork' => true], 'APDelivery', $cmd, $target_item['id'], $inbox, $uid, [], $target_item['uri-id'])) {
847 $delivery_queue_count++;
853 return ['count' => $delivery_queue_count, 'contacts' => $contacts];