3 * @copyright Copyright (C) 2020, Friendica
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\Relay;
43 use Friendica\Protocol\Salmon;
46 * The notifier is typically called with:
48 * Worker::add(PRIORITY_HIGH, "Notifier", COMMAND, ITEM_ID);
50 * where COMMAND is one of the constants that are defined in Worker/Delivery.php
51 * and ITEM_ID is the id of the item in the database that needs to be sent to others.
56 public static function execute(string $cmd, int $post_uriid, int $sender_uid = 0)
60 Logger::info('Invoked', ['cmd' => $cmd, 'target' => $post_uriid, 'sender_uid' => $sender_uid]);
62 $target_id = $post_uriid;
64 if (!empty($sender_uid)) {
65 $post = Post::selectFirst(['id'], ['uri-id' => $post_uriid, 'uid' => $sender_uid]);
66 if (!DBA::isResult($post)) {
67 Logger::warning('Post not found', ['uri-id' => $post_uriid, 'uid' => $sender_uid]);
70 $target_id = $post['id'];
71 } elseif (!in_array($cmd, [Delivery::MAIL, Delivery::SUGGESTION, Delivery::REMOVAL, Delivery::RELOCATION])) {
72 $post = Post::selectFirst(['id', 'uid', 'uri-id'], ['item-id' => $post_uriid]);
73 if (DBA::isResult($post)) {
74 $target_id = $post['id'];
75 $sender_uid = $post['uid'];
76 $post_uriid = $post['uri-id'];
84 $delivery_contacts_stmt = null;
89 $delivery_queue_count = 0;
92 if ($cmd == Delivery::MAIL) {
93 $message = DBA::selectFirst('mail', ['uid', 'contact-id'], ['id' => $target_id]);
94 if (!DBA::isResult($message)) {
97 $uid = $message['uid'];
98 $recipients[] = $message['contact-id'];
100 $mail = ActivityPub\Transmitter::ItemArrayFromMail($target_id);
101 $inboxes = ActivityPub\Transmitter::fetchTargetInboxes($mail, $uid, true);
102 foreach ($inboxes as $inbox => $receivers) {
103 $ap_contacts = array_merge($ap_contacts, $receivers);
104 Logger::info('Delivery via ActivityPub', ['cmd' => $cmd, 'target' => $target_id, 'inbox' => $inbox]);
105 Worker::add(['priority' => PRIORITY_HIGH, 'created' => $a->queue['created'], 'dont_fork' => true],
106 'APDelivery', $cmd, $target_id, $inbox, $uid, $receivers, $post_uriid);
108 } elseif ($cmd == Delivery::SUGGESTION) {
109 $suggest = DI::fsuggest()->getById($target_id);
110 $uid = $suggest->uid;
111 $recipients[] = $suggest->cid;
112 } elseif ($cmd == Delivery::REMOVAL) {
113 return self::notifySelfRemoval($target_id, $a->queue['priority'], $a->queue['created']);
114 } elseif ($cmd == Delivery::RELOCATION) {
117 $condition = ['uid' => $target_id, 'self' => false, 'network' => [Protocol::DFRN, Protocol::DIASPORA]];
118 $delivery_contacts_stmt = DBA::select('contact', ['id', 'url', 'addr', 'network', 'protocol', 'batch'], $condition);
121 $condition = ['id' => $target_id, 'visible' => true];
122 $target_item = Post::selectFirst(Item::DELIVER_FIELDLIST, $condition);
124 if (!DBA::isResult($target_item) || !intval($target_item['parent'])) {
125 Logger::info('No target item', ['cmd' => $cmd, 'target' => $target_id]);
129 if (!empty($target_item['contact-uid'])) {
130 $uid = $target_item['contact-uid'];
131 } elseif (!empty($target_item['uid'])) {
132 $uid = $target_item['uid'];
134 Logger::info('Only public users, quitting', ['target' => $target_id]);
138 $condition = ['parent' => $target_item['parent'], 'visible' => true];
139 $params = ['order' => ['id']];
140 $items_stmt = Post::select(Item::DELIVER_FIELDLIST, $condition, $params);
141 if (!DBA::isResult($items_stmt)) {
142 Logger::info('No item found', ['cmd' => $cmd, 'target' => $target_id]);
146 $items = Post::toArray($items_stmt);
148 // avoid race condition with deleting entries
149 if ($items[0]['deleted']) {
150 foreach ($items as $item) {
151 $item['deleted'] = 1;
155 $top_level = $target_item['gravity'] == GRAVITY_PARENT;
158 $owner = User::getOwnerDataById($uid);
160 Logger::info('Owner not found', ['cmd' => $cmd, 'target' => $target_id]);
164 // Should the post be transmitted to Diaspora?
165 $diaspora_delivery = true;
167 // If this is a public conversation, notify the feed hub
168 $public_message = true;
173 $push_notify = false;
175 // Deliver directly to a forum, don't PuSH
176 $direct_forum_delivery = false;
179 $recipients_followup = [];
181 if (!empty($target_item) && !empty($items)) {
184 $fields = ['network', 'author-id', 'author-link', 'author-network', 'owner-id'];
185 $condition = ['uri' => $target_item["thr-parent"], 'uid' => $target_item["uid"]];
186 $thr_parent = Post::selectFirst($fields, $condition);
187 if (empty($thr_parent)) {
188 $thr_parent = $parent;
191 Logger::log('GUID: ' . $target_item["guid"] . ': Parent is ' . $parent['network'] . '. Thread parent is ' . $thr_parent['network'], Logger::DEBUG);
193 if (!self::isRemovalActivity($cmd, $owner, Protocol::ACTIVITYPUB)) {
194 $apdelivery = self::activityPubDelivery($cmd, $target_item, $parent, $thr_parent, $a->queue['priority'], $a->queue['created'], $owner);
195 $ap_contacts = $apdelivery['contacts'];
196 $delivery_queue_count += $apdelivery['count'];
199 // Only deliver threaded replies (comment to a comment) to Diaspora
200 // when the original comment author does support the Diaspora protocol.
201 if ($thr_parent['author-link'] && $target_item['parent-uri'] != $target_item['thr-parent']) {
202 $diaspora_delivery = Diaspora::isSupportedByContactUrl($thr_parent['author-link']);
203 Logger::info('Threaded comment', ['diaspora_delivery' => (int)$diaspora_delivery]);
206 $unlisted = $target_item['private'] == Item::UNLISTED;
208 // This is IMPORTANT!!!!
210 // We will only send a "notify owner to relay" or followup message if the referenced post
211 // originated on our system by virtue of having our hostname somewhere
212 // in the URI, AND it was a comment (not top_level) AND the parent originated elsewhere.
214 // if $parent['wall'] == 1 we will already have the parent message in our array
215 // and we will relay the whole lot.
217 $localhost = str_replace('www.','', DI::baseUrl()->getHostname());
218 if (strpos($localhost,':')) {
219 $localhost = substr($localhost,0,strpos($localhost,':'));
223 * Be VERY CAREFUL if you make any changes to the following several lines. Seemingly innocuous changes
224 * have been known to cause runaway conditions which affected several servers, along with
225 * permissions issues.
229 $relay_to_owner = false;
231 if (!$top_level && ($parent['wall'] == 0) && (stristr($target_item['uri'],$localhost))) {
232 $relay_to_owner = true;
235 if (($cmd === Delivery::UPLINK) && (intval($parent['forum_mode']) == 1) && !$top_level) {
236 $relay_to_owner = true;
239 // until the 'origin' flag has been in use for several months
240 // we will just use it as a fallback test
241 // later we will be able to use it as the primary test of whether or not to relay.
243 if (!$target_item['origin']) {
244 $relay_to_owner = false;
246 if ($parent['origin']) {
247 $relay_to_owner = false;
250 // Special treatment for forum posts
251 if (Item::isForumPost($target_item, $owner)) {
252 $relay_to_owner = true;
253 $direct_forum_delivery = true;
256 // Avoid that comments in a forum thread are sent to OStatus
257 if (Item::isForumPost($parent, $owner)) {
258 $direct_forum_delivery = true;
261 if ($relay_to_owner) {
262 // local followup to remote post
264 $public_message = false; // not public
265 $recipients = [$parent['contact-id']];
266 $recipients_followup = [$parent['contact-id']];
268 Logger::info('Followup', ['target' => $target_id, 'guid' => $target_item['guid'], 'to' => $parent['contact-id']]);
270 if (($target_item['private'] != Item::PRIVATE) &&
271 (strlen($target_item['allow_cid'].$target_item['allow_gid'].
272 $target_item['deny_cid'].$target_item['deny_gid']) == 0))
275 if (($thr_parent && ($thr_parent['network'] == Protocol::OSTATUS)) || ($parent['network'] == Protocol::OSTATUS)) {
278 if ($parent["network"] == Protocol::OSTATUS) {
279 // Distribute the message to the DFRN contacts as if this wasn't a followup since OStatus can't relay comments
280 // Currently it is work at progress
281 $condition = ['uid' => $uid, 'network' => Protocol::DFRN, 'blocked' => false, 'pending' => false, 'archive' => false];
282 $followup_contacts_stmt = DBA::select('contact', ['id'], $condition);
283 while($followup_contact = DBA::fetch($followup_contacts_stmt)) {
284 $recipients_followup[] = $followup_contact['id'];
286 DBA::close($followup_contacts_stmt);
290 if ($direct_forum_delivery) {
291 $push_notify = false;
294 Logger::log('Notify ' . $target_item["guid"] .' via PuSH: ' . ($push_notify ? "Yes":"No"), Logger::DEBUG);
298 Logger::info('Distributing directly', ['target' => $target_id, 'guid' => $target_item['guid']]);
300 // don't send deletions onward for other people's stuff
302 if ($target_item['deleted'] && !intval($target_item['wall'])) {
303 Logger::log('Ignoring delete notification for non-wall item');
307 if (strlen($parent['allow_cid'])
308 || strlen($parent['allow_gid'])
309 || strlen($parent['deny_cid'])
310 || strlen($parent['deny_gid'])) {
311 $public_message = false; // private recipients, not public
314 $aclFormatter = DI::aclFormatter();
316 $allow_people = $aclFormatter->expand($parent['allow_cid']);
317 $allow_groups = Group::expand($uid, $aclFormatter->expand($parent['allow_gid']),true);
318 $deny_people = $aclFormatter->expand($parent['deny_cid']);
319 $deny_groups = Group::expand($uid, $aclFormatter->expand($parent['deny_gid']));
321 // if our parent is a public forum (forum_mode == 1), uplink to the origional author causing
322 // a delivery fork. private groups (forum_mode == 2) do not uplink
323 /// @todo Possibly we should not uplink when the author is the forum itself?
325 if ((intval($parent['forum_mode']) == 1) && !$top_level && ($cmd !== Delivery::UPLINK)
326 && ($target_item['verb'] != Activity::ANNOUNCE)) {
327 Worker::add($a->queue['priority'], 'Notifier', Delivery::UPLINK, $post_uriid, $sender_uid);
330 foreach ($items as $item) {
331 $recipients[] = $item['contact-id'];
332 // pull out additional tagged people to notify (if public message)
333 if ($public_message && strlen($item['inform'])) {
334 $people = explode(',',$item['inform']);
335 foreach ($people as $person) {
336 if (substr($person,0,4) === 'cid:') {
337 $recipients[] = intval(substr($person,4));
339 $url_recipients[] = substr($person,4);
345 if (count($url_recipients)) {
346 Logger::notice('Deliver', ['target' => $target_id, 'guid' => $target_item['guid'], 'recipients' => $url_recipients]);
349 $recipients = array_unique(array_merge($recipients, $allow_people, $allow_groups));
350 $deny = array_unique(array_merge($deny_people, $deny_groups));
351 $recipients = array_diff($recipients, $deny);
353 // If this is a public message and pubmail is set on the parent, include all your email contacts
355 function_exists('imap_open')
356 && !DI::config()->get('system','imap_disabled')
358 && intval($target_item['pubmail'])
360 $mail_contacts_stmt = DBA::select('contact', ['id'], ['uid' => $uid, 'network' => Protocol::MAIL]);
361 while ($mail_contact = DBA::fetch($mail_contacts_stmt)) {
362 $recipients[] = $mail_contact['id'];
364 DBA::close($mail_contacts_stmt);
368 // If the thread parent is OStatus then do some magic to distribute the messages.
369 // We have not only to look at the parent, since it could be a Friendica thread.
370 if (($thr_parent && ($thr_parent['network'] == Protocol::OSTATUS)) || ($parent['network'] == Protocol::OSTATUS)) {
371 $diaspora_delivery = false;
373 Logger::log('Some parent is OStatus for '.$target_item["guid"]." - Author: ".$thr_parent['author-id']." - Owner: ".$thr_parent['owner-id'], Logger::DEBUG);
375 // Send a salmon to the parent author
376 $probed_contact = DBA::selectFirst('contact', ['url', 'notify'], ['id' => $thr_parent['author-id']]);
377 if (DBA::isResult($probed_contact) && !empty($probed_contact["notify"])) {
378 Logger::notice('Notify parent author', ['url' => $probed_contact["url"], 'notify' => $probed_contact["notify"]]);
379 $url_recipients[$probed_contact["notify"]] = $probed_contact["notify"];
382 // Send a salmon to the parent owner
383 $probed_contact = DBA::selectFirst('contact', ['url', 'notify'], ['id' => $thr_parent['owner-id']]);
384 if (DBA::isResult($probed_contact) && !empty($probed_contact["notify"])) {
385 Logger::notice('Notify parent owner', ['url' => $probed_contact["url"], 'notify' => $probed_contact["notify"]]);
386 $url_recipients[$probed_contact["notify"]] = $probed_contact["notify"];
389 // Send a salmon notification to every person we mentioned in the post
390 foreach (Tag::getByURIId($target_item['uri-id'], [Tag::MENTION, Tag::EXCLUSIVE_MENTION, Tag::IMPLICIT_MENTION]) as $tag) {
391 $probed_contact = Contact::getByURL($tag['url']);
392 if (!empty($probed_contact['notify'])) {
393 Logger::notice('Notify mentioned user', ['url' => $probed_contact["url"], 'notify' => $probed_contact["notify"]]);
394 $url_recipients[$probed_contact['notify']] = $probed_contact['notify'];
398 // It only makes sense to distribute answers to OStatus messages to Friendica and OStatus - but not Diaspora
399 $networks = [Protocol::DFRN];
400 } elseif ($diaspora_delivery) {
401 $networks = [Protocol::DFRN, Protocol::DIASPORA, Protocol::MAIL];
402 if (($parent['network'] == Protocol::DIASPORA) || ($thr_parent['network'] == Protocol::DIASPORA)) {
403 Logger::info('Add AP contacts', ['target' => $target_id, 'guid' => $target_item['guid']]);
404 $networks[] = Protocol::ACTIVITYPUB;
407 $networks = [Protocol::DFRN, Protocol::MAIL];
410 $public_message = false;
413 if (empty($delivery_contacts_stmt)) {
415 $recipients = $recipients_followup;
417 $condition = ['id' => $recipients, 'self' => false, 'uid' => [0, $uid],
418 'blocked' => false, 'pending' => false, 'archive' => false];
419 if (!empty($networks)) {
420 $condition['network'] = $networks;
422 $delivery_contacts_stmt = DBA::select('contact', ['id', 'addr', 'url', 'network', 'protocol', 'batch'], $condition);
426 $batch_delivery = false;
428 if ($public_message && !in_array($cmd, [Delivery::MAIL, Delivery::SUGGESTION]) && !$followup) {
431 if ($diaspora_delivery && !$unlisted) {
432 $batch_delivery = true;
434 $relay_list_stmt = DBA::p(
436 `batch`, `network`, `protocol`,
437 ANY_VALUE(`id`) AS `id`,
438 ANY_VALUE(`url`) AS `url`,
439 ANY_VALUE(`name`) AS `name`
448 GROUP BY `batch`, `network`, `protocol`",
453 $relay_list = DBA::toArray($relay_list_stmt);
455 // Fetch the participation list
456 // The function will ensure that there are no duplicates
457 $relay_list = Diaspora::participantsForThread($target_item, $relay_list);
459 // Add the relay to the list, avoid duplicates.
460 // Don't send community posts to the relay. Forum posts via the Diaspora protocol are looking ugly.
461 if (!$followup && !Item::isForumPost($target_item, $owner) && !self::isForumPost($target_item)) {
462 $relay_list = Relay::getList($target_id, $relay_list, [Protocol::DFRN, Protocol::DIASPORA]);
466 $condition = ['network' => Protocol::DFRN, 'uid' => $owner['uid'], 'blocked' => false,
467 'pending' => false, 'archive' => false, 'rel' => [Contact::FOLLOWER, Contact::FRIEND]];
469 $contacts = DBA::toArray(DBA::select('contact', ['id', 'url', 'addr', 'name', 'network', 'protocol'], $condition));
471 $conversants = array_merge($contacts, $relay_list);
473 $delivery_queue_count += self::delivery($cmd, $post_uriid, $sender_uid, $target_item, $thr_parent, $owner, $batch_delivery, true, $conversants, $ap_contacts, []);
478 $contacts = DBA::toArray($delivery_contacts_stmt);
479 $delivery_queue_count += self::delivery($cmd, $post_uriid, $sender_uid, $target_item, $thr_parent, $owner, $batch_delivery, false, $contacts, $ap_contacts, $conversants);
481 $delivery_queue_count += self::deliverOStatus($target_id, $target_item, $owner, $url_recipients, $public_message, $push_notify);
483 if (!empty($target_item)) {
484 Logger::log('Calling hooks for ' . $cmd . ' ' . $target_id, Logger::DEBUG);
486 Hook::fork($a->queue['priority'], 'notifier_normal', $target_item);
488 Hook::callAll('notifier_end', $target_item);
490 // Workaround for pure connector posts
491 if (in_array($cmd, [Delivery::POST, Delivery::POKE])) {
492 if ($delivery_queue_count == 0) {
493 Post\DeliveryData::incrementQueueDone($target_item['uri-id']);
494 $delivery_queue_count = 1;
497 Post\DeliveryData::incrementQueueCount($target_item['uri-id'], $delivery_queue_count);
505 * Deliver the message to the contacts
508 * @param int $post_uriid
509 * @param int $sender_uid
510 * @param array $target_item
511 * @param array $thr_parent
512 * @param array $owner
513 * @param bool $batch_delivery
514 * @param array $contacts
515 * @param array $ap_contacts
516 * @param array $conversants
518 * @throws InternalServerErrorException
521 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 = [])
524 $delivery_queue_count = 0;
526 foreach ($contacts as $contact) {
527 // Ensure that local contacts are delivered via DFRN
528 if (Contact::isLocal($contact['url'])) {
529 $contact['network'] = Protocol::DFRN;
532 if (in_array($contact['id'], $ap_contacts)) {
533 Logger::info('Contact is already delivered via AP, so skip delivery via legacy DFRN/Diaspora', ['target' => $post_uriid, 'uid' => $sender_uid, 'contact' => $contact['url']]);
537 if (!empty($contact['id']) && Contact::isArchived($contact['id'])) {
538 Logger::info('Contact is archived, so skip delivery', ['target' => $post_uriid, 'uid' => $sender_uid, 'contact' => $contact['url']]);
542 if (self::isRemovalActivity($cmd, $owner, $contact['network'])) {
543 Logger::info('Contact does no supports account removal commands, so skip delivery', ['target' => $post_uriid, 'uid' => $sender_uid, 'contact' => $contact['url']]);
547 if (self::skipActivityPubForDiaspora($contact, $target_item, $thr_parent)) {
548 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' => $contact['url']]);
552 // Don't deliver to Diaspora if it already had been done as batch delivery
553 if (!$in_batch && $batch_delivery && ($contact['network'] == Protocol::DIASPORA)) {
554 Logger::info('Diaspora contact is already delivered via batch', ['id' => $post_uriid, 'uid' => $sender_uid, 'contact' => $contact]);
558 // Don't deliver to folks who have already been delivered to
559 if (in_array($contact['id'], $conversants)) {
560 Logger::info('Already delivery', ['id' => $post_uriid, 'uid' => $sender_uid, 'contact' => $contact]);
564 Logger::info('Delivery', ['batch' => $in_batch, 'target' => $post_uriid, 'uid' => $sender_uid, 'guid' => $target_item['guid'] ?? '', 'to' => $contact]);
566 // Ensure that posts with our own protocol arrives before Diaspora posts arrive.
567 // Situation is that sometimes Friendica servers receive Friendica posts over the Diaspora protocol first.
568 // The conversion in Markdown reduces the formatting, so these posts should arrive after the Friendica posts.
569 // This is only important for high and medium priority tasks and not for Low priority jobs like deletions.
570 if (($contact['network'] == Protocol::DIASPORA) && in_array($a->queue['priority'], [PRIORITY_HIGH, PRIORITY_MEDIUM])) {
571 $deliver_options = ['priority' => $a->queue['priority'], 'dont_fork' => true];
573 $deliver_options = ['priority' => $a->queue['priority'], 'created' => $a->queue['created'], 'dont_fork' => true];
576 if (Worker::add($deliver_options, 'Delivery', $cmd, $post_uriid, (int)$contact['id'], $sender_uid)) {
577 $delivery_queue_count++;
580 return $delivery_queue_count;
584 * Deliver the message via OStatus
586 * @param int $target_id
587 * @param array $target_item
588 * @param array $owner
589 * @param array $url_recipients
590 * @param bool $public_message
591 * @param bool $push_notify
593 * @throws InternalServerErrorException
596 private static function deliverOStatus(int $target_id, array $target_item, array $owner, array $url_recipients, bool $public_message, bool $push_notify)
599 $delivery_queue_count = 0;
601 $url_recipients = array_filter($url_recipients);
602 // send salmon slaps to mentioned remote tags (@foo@example.com) in OStatus posts
603 // They are especially used for notifications to OStatus users that don't follow us.
604 if (!DI::config()->get('system', 'dfrn_only') && count($url_recipients) && ($public_message || $push_notify) && !empty($target_item)) {
605 $slap = OStatus::salmon($target_item, $owner);
606 foreach ($url_recipients as $url) {
607 Logger::info('Salmon delivery', ['item' => $target_id, 'to' => $url]);
609 $delivery_queue_count++;
610 Salmon::slapper($owner, $url, $slap);
611 Post\DeliveryData::incrementQueueDone($target_item['uri-id'], Post\DeliveryData::OSTATUS);
615 // Notify PuSH subscribers (Used for OStatus distribution of regular posts)
617 Logger::info('Activating internal PuSH', ['item' => $target_id]);
619 // Handling the pubsubhubbub requests
620 PushSubscriber::publishFeed($owner['uid'], $a->queue['priority']);
622 return $delivery_queue_count;
626 * Checks if the current delivery shouldn't be transported to Diaspora.
627 * This is done for posts from AP authors or posts that are comments to AP authors.
629 * @param array $contact Receiver of the post
630 * @param array $item The post
631 * @param array $thr_parent The thread parent
634 private static function skipActivityPubForDiaspora(array $contact, array $item, array $thr_parent)
636 // No skipping needs to be done when delivery isn't done to Diaspora
637 if ($contact['network'] != Protocol::DIASPORA) {
641 // Skip the delivery to Diaspora if the item is from an ActivityPub author
642 if (!empty($item['author-network']) && ($item['author-network'] == Protocol::ACTIVITYPUB)) {
646 // Skip the delivery to Diaspora if the thread parent is from an ActivityPub author
647 if (!empty($thr_parent['author-network']) && ($thr_parent['author-network'] == Protocol::ACTIVITYPUB)) {
655 * Checks if the current action is a deletion command of a account removal activity
656 * For Diaspora and ActivityPub we don't need to send single item deletion calls.
657 * These protocols do have a dedicated command for deleting a whole account.
659 * @param string $cmd Notifier command
660 * @param array $owner Sender of the post
661 * @param string $network Receiver network
663 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
664 * @throws \ImagickException
666 private static function isRemovalActivity($cmd, $owner, $network)
668 return ($cmd == Delivery::DELETION) && $owner['account_removed'] && in_array($network, [Protocol::ACTIVITYPUB, Protocol::DIASPORA]);
672 * @param int $self_user_id
673 * @param int $priority The priority the Notifier queue item was created with
674 * @param string $created The date the Notifier queue item was created on
676 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
677 * @throws \ImagickException
679 private static function notifySelfRemoval($self_user_id, $priority, $created)
681 $owner = User::getOwnerDataById($self_user_id);
686 $contacts_stmt = DBA::select('contact', [], ['self' => false, 'uid' => $self_user_id]);
687 if (!DBA::isResult($contacts_stmt)) {
691 while($contact = DBA::fetch($contacts_stmt)) {
692 Contact::terminateFriendship($owner, $contact, true);
694 DBA::close($contacts_stmt);
696 $inboxes = ActivityPub\Transmitter::fetchTargetInboxesforUser(0);
697 foreach ($inboxes as $inbox => $receivers) {
698 Logger::info('Account removal via ActivityPub', ['uid' => $self_user_id, 'inbox' => $inbox]);
699 Worker::add(['priority' => PRIORITY_NEGLIGIBLE, 'created' => $created, 'dont_fork' => true],
700 'APDelivery', Delivery::REMOVAL, 0, $inbox, $self_user_id, $receivers);
708 * @param array $target_item
709 * @param array $parent
710 * @param array $thr_parent
711 * @param int $priority The priority the Notifier queue item was created with
712 * @param string $created The date the Notifier queue item was created on
713 * @return array 'count' => The number of delivery tasks created, 'contacts' => their contact ids
714 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
715 * @throws \ImagickException
717 private static function activityPubDelivery($cmd, array $target_item, array $parent, array $thr_parent, $priority, $created, $owner)
719 // Don't deliver via AP when the starting post isn't from a federated network
720 if (!in_array($parent['network'], Protocol::FEDERATED)) {
721 return ['count' => 0, 'contacts' => []];
724 // Don't deliver via AP when the starting post is delivered via Diaspora
725 if ($parent['network'] == Protocol::DIASPORA) {
726 return ['count' => 0, 'contacts' => []];
729 // Also don't deliver when the direct thread parent was delivered via Diaspora
730 if ($thr_parent['network'] == Protocol::DIASPORA) {
731 return ['count' => 0, 'contacts' => []];
734 // Posts from Diaspora contacts are transmitted via Diaspora
735 if ($target_item['network'] == Protocol::DIASPORA) {
736 return ['count' => 0, 'contacts' => []];
742 $uid = $target_item['contact-uid'] ?: $target_item['uid'];
744 if ($target_item['origin']) {
745 $inboxes = ActivityPub\Transmitter::fetchTargetInboxes($target_item, $uid);
747 if (in_array($target_item['private'], [Item::PUBLIC])) {
748 $inboxes = ActivityPub\Transmitter::addRelayServerInboxesForItem($target_item['id'], $inboxes);
749 $relay_inboxes = ActivityPub\Transmitter::addRelayServerInboxes();
752 Logger::log('Origin item ' . $target_item['id'] . ' with URL ' . $target_item['uri'] . ' will be distributed.', Logger::DEBUG);
753 } elseif (Item::isForumPost($target_item, $owner)) {
754 $inboxes = ActivityPub\Transmitter::fetchTargetInboxes($target_item, $uid, false, 0, true);
755 Logger::log('Forum item ' . $target_item['id'] . ' with URL ' . $target_item['uri'] . ' will be distributed.', Logger::DEBUG);
756 } elseif (!DBA::exists('conversation', ['item-uri' => $target_item['uri'], 'protocol' => Conversation::PARCEL_ACTIVITYPUB])) {
757 Logger::log('Remote item ' . $target_item['id'] . ' with URL ' . $target_item['uri'] . ' is no AP post. It will not be distributed.', Logger::DEBUG);
758 return ['count' => 0, 'contacts' => []];
759 } elseif ($parent['origin']) {
760 // Remote items are transmitted via the personal inboxes.
761 // Doing so ensures that the dedicated receiver will get the message.
762 $inboxes = ActivityPub\Transmitter::fetchTargetInboxes($parent, $uid, true, $target_item['id']);
764 if (in_array($target_item['private'], [Item::PUBLIC])) {
765 $inboxes = ActivityPub\Transmitter::addRelayServerInboxesForItem($parent['id'], $inboxes);
766 $relay_inboxes = ActivityPub\Transmitter::addRelayServerInboxes([]);
769 Logger::log('Remote item ' . $target_item['id'] . ' with URL ' . $target_item['uri'] . ' will be distributed.', Logger::DEBUG);
772 if (empty($inboxes) && empty($relay_inboxes)) {
773 Logger::log('No inboxes found for item ' . $target_item['id'] . ' with URL ' . $target_item['uri'] . '. It will not be distributed.', Logger::DEBUG);
774 return ['count' => 0, 'contacts' => []];
777 // Fill the item cache
778 ActivityPub\Transmitter::createCachedActivityFromItem($target_item['id'], true);
780 $delivery_queue_count = 0;
783 foreach ($inboxes as $inbox => $receivers) {
784 $contacts = array_merge($contacts, $receivers);
786 Logger::info('Delivery via ActivityPub', ['cmd' => $cmd, 'id' => $target_item['id'], 'inbox' => $inbox]);
788 if (Worker::add(['priority' => $priority, 'created' => $created, 'dont_fork' => true],
789 'APDelivery', $cmd, $target_item['id'], $inbox, $uid, $receivers, $target_item['uri-id'])) {
790 $delivery_queue_count++;
794 // We deliver posts to relay servers slightly delayed to priorize the direct delivery
795 foreach ($relay_inboxes as $inbox) {
796 Logger::info('Delivery to relay servers via ActivityPub', ['cmd' => $cmd, 'id' => $target_item['id'], 'inbox' => $inbox]);
798 if (Worker::add(['priority' => $priority, 'dont_fork' => true], 'APDelivery', $cmd, $target_item['id'], $inbox, $uid, [], $target_item['uri-id'])) {
799 $delivery_queue_count++;
803 return ['count' => $delivery_queue_count, 'contacts' => $contacts];
807 * Check if the delivered item is a forum post
812 public static function isForumPost(array $item)
814 return ($item['gravity'] == GRAVITY_PARENT) && !empty($item['forum_mode']);