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\Protocol\ActivityPub;
24 use Friendica\Content\Feature;
25 use Friendica\Content\Text\BBCode;
26 use Friendica\Content\Text\Plaintext;
27 use Friendica\Core\Cache\Duration;
28 use Friendica\Core\Logger;
29 use Friendica\Core\Protocol;
30 use Friendica\Core\System;
31 use Friendica\Database\DBA;
33 use Friendica\Model\APContact;
34 use Friendica\Model\Contact;
35 use Friendica\Model\Conversation;
36 use Friendica\Model\Item;
37 use Friendica\Model\ItemURI;
38 use Friendica\Model\Profile;
39 use Friendica\Model\Photo;
40 use Friendica\Model\Post;
41 use Friendica\Model\Tag;
42 use Friendica\Model\User;
43 use Friendica\Protocol\Activity;
44 use Friendica\Protocol\ActivityPub;
45 use Friendica\Protocol\Relay;
46 use Friendica\Util\DateTimeFormat;
47 use Friendica\Util\HTTPSignature;
48 use Friendica\Util\JsonLD;
49 use Friendica\Util\LDSignature;
50 use Friendica\Util\Map;
51 use Friendica\Util\Network;
52 use Friendica\Util\XML;
54 require_once 'include/api.php';
55 require_once 'mod/share.php';
58 * ActivityPub Transmitter Protocol class
66 * Add relay servers to the list of inboxes
68 * @param array $inboxes
69 * @return array inboxes with added relay servers
71 public static function addRelayServerInboxes(array $inboxes = [])
73 $contacts = DBA::select('apcontact', ['inbox'],
74 ["`type` = ? AND `url` IN (SELECT `url` FROM `contact` WHERE `uid` = ? AND `rel` IN (?, ?))",
75 'Application', 0, Contact::FOLLOWER, Contact::FRIEND]);
76 while ($contact = DBA::fetch($contacts)) {
77 $inboxes[] = $contact['inbox'];
79 DBA::close($contacts);
85 * Add relay servers to the list of inboxes
87 * @param array $inboxes
88 * @return array inboxes with added relay servers
90 public static function addRelayServerInboxesForItem(int $item_id, array $inboxes = [])
92 $relays = Relay::getList($item_id, [], [Protocol::ACTIVITYPUB]);
97 foreach ($relays as $relay) {
98 if (!in_array($relay['batch'], $inboxes)) {
99 $inboxes[] = $relay['batch'];
106 * Subscribe to a relay
108 * @param string $url Subscribe actor url
109 * @return bool success
111 public static function sendRelayFollow(string $url)
113 $contact = Contact::getByURL($url);
114 if (empty($contact)) {
118 $activity_id = ActivityPub\Transmitter::activityIDFromContact($contact['id']);
119 $success = ActivityPub\Transmitter::sendActivity('Follow', $url, 0, $activity_id);
121 $rel = $contact['rel'] == Contact::SHARING ? Contact::FRIEND : Contact::FOLLOWER;
122 DBA::update('contact', ['rel' => $rel], ['id' => $contact['id']]);
129 * Unsubscribe from a relay
131 * @param string $url Subscribe actor url
132 * @param bool $force Set the relay status as non follower even if unsubscribe hadn't worked
133 * @return bool success
135 public static function sendRelayUndoFollow(string $url, bool $force = false)
137 $contact = Contact::getByURL($url);
138 if (empty($contact)) {
142 $success = self::sendContactUndo($url, $contact['id'], 0);
143 if ($success || $force) {
144 $rel = $contact['rel'] == Contact::FRIEND ? Contact::SHARING : Contact::NOTHING;
145 DBA::update('contact', ['rel' => $rel], ['id' => $contact['id']]);
152 * Collects a list of contacts of the given owner
154 * @param array $owner Owner array
155 * @param int|array $rel The relevant value(s) contact.rel should match
156 * @param string $module The name of the relevant AP endpoint module (followers|following)
157 * @param integer $page Page number
159 * @return array of owners
162 public static function getContacts($owner, $rel, $module, $page = null)
166 'uid' => $owner['uid'],
174 $condition = DBA::buildCondition($parameters);
176 $sql = "SELECT COUNT(*) as `count`
178 JOIN `apcontact` ON `apcontact`.`url` = `contact`.`url`
181 $contacts = DBA::fetchFirst($sql, ...$parameters);
183 $modulePath = '/' . $module . '/';
185 $data = ['@context' => ActivityPub::CONTEXT];
186 $data['id'] = DI::baseUrl() . $modulePath . $owner['nickname'];
187 $data['type'] = 'OrderedCollection';
188 $data['totalItems'] = $contacts['count'];
190 // When we hide our friends we will only show the pure number but don't allow more.
191 $profile = Profile::getByUID($owner['uid']);
192 if (!empty($profile['hide-friends'])) {
197 $data['first'] = DI::baseUrl() . $modulePath . $owner['nickname'] . '?page=1';
199 $data['type'] = 'OrderedCollectionPage';
202 $sql = "SELECT `contact`.`url`
204 JOIN `apcontact` ON `apcontact`.`url` = `contact`.`url`
208 $parameters[] = ($page - 1) * 100;
211 $contacts = DBA::p($sql, ...$parameters);
212 while ($contact = DBA::fetch($contacts)) {
213 $list[] = $contact['url'];
215 DBA::close($contacts);
218 $data['next'] = DI::baseUrl() . $modulePath . $owner['nickname'] . '?page=' . ($page + 1);
221 $data['partOf'] = DI::baseUrl() . $modulePath . $owner['nickname'];
223 $data['orderedItems'] = $list;
230 * Public posts for the given owner
232 * @param array $owner Owner array
233 * @param integer $page Page number
234 * @param string $requester URL of requesting account
236 * @return array of posts
237 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
238 * @throws \ImagickException
240 public static function getOutbox($owner, $page = null, $requester = '')
242 $public_contact = Contact::getIdForURL($owner['url']);
243 $condition = ['uid' => 0, 'contact-id' => $public_contact,
244 'private' => [Item::PUBLIC, Item::UNLISTED]];
246 if (!empty($requester)) {
247 $requester_id = Contact::getIdForURL($requester, $owner['uid']);
248 if (!empty($requester_id)) {
249 $permissionSets = DI::permissionSet()->selectByContactId($requester_id, $owner['uid']);
250 if (!empty($permissionSets)) {
251 $condition = ['uid' => $owner['uid'], 'origin' => true,
252 'psid' => array_merge($permissionSets->column('id'),
253 [DI::permissionSet()->getIdFromACL($owner['uid'], '', '', '', '')])];
258 $condition = array_merge($condition,
259 ['author-id' => $public_contact,
260 'gravity' => [GRAVITY_PARENT, GRAVITY_COMMENT],
261 'deleted' => false, 'visible' => true, 'moderated' => false]);
263 $count = DBA::count('item', $condition);
265 $data = ['@context' => ActivityPub::CONTEXT];
266 $data['id'] = DI::baseUrl() . '/outbox/' . $owner['nickname'];
267 $data['type'] = 'OrderedCollection';
268 $data['totalItems'] = $count;
271 $data['first'] = DI::baseUrl() . '/outbox/' . $owner['nickname'] . '?page=1';
273 $data['type'] = 'OrderedCollectionPage';
276 $condition['parent-network'] = Protocol::NATIVE_SUPPORT;
278 $items = Item::select(['id'], $condition, ['limit' => [($page - 1) * 20, 20], 'order' => ['created' => true]]);
279 while ($item = Item::fetch($items)) {
280 $activity = self::createActivityFromItem($item['id'], true);
281 $activity['type'] = $activity['type'] == 'Update' ? 'Create' : $activity['type'];
283 // Only list "Create" activity objects here, no reshares
284 if (!empty($activity['object']) && ($activity['type'] == 'Create')) {
285 $list[] = $activity['object'];
290 $data['next'] = DI::baseUrl() . '/outbox/' . $owner['nickname'] . '?page=' . ($page + 1);
293 $data['partOf'] = DI::baseUrl() . '/outbox/' . $owner['nickname'];
295 $data['orderedItems'] = $list;
302 * Return the service array containing information the used software and it's url
304 * @return array with service data
306 private static function getService()
308 return ['type' => 'Service',
309 'name' => FRIENDICA_PLATFORM . " '" . FRIENDICA_CODENAME . "' " . FRIENDICA_VERSION . '-' . DB_UPDATE_VERSION,
310 'url' => DI::baseUrl()->get()];
314 * Return the ActivityPub profile of the given user
316 * @param integer $uid User ID
317 * @return array with profile data
318 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
320 public static function getProfile($uid)
323 $condition = ['uid' => $uid, 'blocked' => false, 'account_expired' => false,
324 'account_removed' => false, 'verified' => true];
325 $fields = ['guid', 'nickname', 'pubkey', 'account-type', 'page-flags'];
326 $user = DBA::selectFirst('user', $fields, $condition);
327 if (!DBA::isResult($user)) {
331 $fields = ['locality', 'region', 'country-name'];
332 $profile = DBA::selectFirst('profile', $fields, ['uid' => $uid]);
333 if (!DBA::isResult($profile)) {
337 $fields = ['name', 'url', 'location', 'about', 'avatar', 'photo'];
338 $contact = DBA::selectFirst('contact', $fields, ['uid' => $uid, 'self' => true]);
339 if (!DBA::isResult($contact)) {
343 $contact = User::getSystemAccount();
344 $user = ['guid' => '', 'nickname' => $contact['nick'], 'pubkey' => $contact['pubkey'],
345 'account-type' => $contact['contact-type'], 'page-flags' => User::PAGE_FLAGS_NORMAL];
346 $profile = ['locality' => '', 'region' => '', 'country-name' => ''];
349 $data = ['@context' => ActivityPub::CONTEXT];
350 $data['id'] = $contact['url'];
352 if (!empty($user['guid'])) {
353 $data['diaspora:guid'] = $user['guid'];
356 $data['type'] = ActivityPub::ACCOUNT_TYPES[$user['account-type']];
359 $data['following'] = DI::baseUrl() . '/following/' . $user['nickname'];
360 $data['followers'] = DI::baseUrl() . '/followers/' . $user['nickname'];
361 $data['inbox'] = DI::baseUrl() . '/inbox/' . $user['nickname'];
362 $data['outbox'] = DI::baseUrl() . '/outbox/' . $user['nickname'];
364 $data['inbox'] = DI::baseUrl() . '/friendica/inbox';
367 $data['preferredUsername'] = $user['nickname'];
368 $data['name'] = $contact['name'];
370 if (!empty($profile['country-name'] . $profile['region'] . $profile['locality'])) {
371 $data['vcard:hasAddress'] = ['@type' => 'vcard:Home', 'vcard:country-name' => $profile['country-name'],
372 'vcard:region' => $profile['region'], 'vcard:locality' => $profile['locality']];
375 if (!empty($contact['about'])) {
376 $data['summary'] = BBCode::convert($contact['about'], false);
379 $data['url'] = $contact['url'];
380 $data['manuallyApprovesFollowers'] = in_array($user['page-flags'], [User::PAGE_FLAGS_NORMAL, User::PAGE_FLAGS_PRVGROUP]);
381 $data['publicKey'] = ['id' => $contact['url'] . '#main-key',
382 'owner' => $contact['url'],
383 'publicKeyPem' => $user['pubkey']];
384 $data['endpoints'] = ['sharedInbox' => DI::baseUrl() . '/inbox'];
385 $data['icon'] = ['type' => 'Image',
386 'url' => $contact['photo']];
388 $data['generator'] = self::getService();
390 // tags: https://kitty.town/@inmysocks/100656097926961126.json
395 * @param string $username
397 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
399 public static function getDeletedUser($username)
402 '@context' => ActivityPub::CONTEXT,
403 'id' => DI::baseUrl() . '/profile/' . $username,
404 'type' => 'Tombstone',
405 'published' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
406 'updated' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
407 'deleted' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
412 * Returns an array with permissions of a given item array
416 * @return array with permissions
417 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
418 * @throws \ImagickException
420 private static function fetchPermissionBlockFromConversation($item)
422 if (empty($item['thr-parent'])) {
426 $condition = ['item-uri' => $item['thr-parent'], 'protocol' => Conversation::PARCEL_ACTIVITYPUB];
427 $conversation = DBA::selectFirst('conversation', ['source'], $condition);
428 if (!DBA::isResult($conversation)) {
432 $activity = json_decode($conversation['source'], true);
434 $actor = JsonLD::fetchElement($activity, 'actor', 'id');
435 if (!empty($actor)) {
436 $permissions['to'][] = $actor;
437 $profile = APContact::getByURL($actor);
442 $item_profile = APContact::getByURL($item['author-link']);
443 $exclude[] = $item['author-link'];
445 if ($item['gravity'] == GRAVITY_PARENT) {
446 $exclude[] = $item['owner-link'];
449 foreach (['to', 'cc', 'bto', 'bcc'] as $element) {
450 if (empty($activity[$element])) {
453 if (is_string($activity[$element])) {
454 $activity[$element] = [$activity[$element]];
457 foreach ($activity[$element] as $receiver) {
458 if (empty($receiver)) {
462 if (!empty($profile['followers']) && $receiver == $profile['followers'] && !empty($item_profile['followers'])) {
463 $permissions[$element][] = $item_profile['followers'];
464 } elseif (!in_array($receiver, $exclude)) {
465 $permissions[$element][] = $receiver;
473 * Check if the given item id is from ActivityPub
475 * @param integer $item_id
476 * @return boolean "true" if the post is from ActivityPub
478 private static function isAPPost(int $item_id)
480 if (empty($item_id)) {
484 return Item::exists(['id' => $item_id, 'network' => Protocol::ACTIVITYPUB]);
488 * Creates an array of permissions from an item thread
490 * @param array $item Item array
491 * @param boolean $blindcopy addressing via "bcc" or "cc"?
492 * @param integer $last_id Last item id for adding receivers
493 * @param boolean $forum_mode "true" means that we are sending content to a forum
495 * @return array with permission data
496 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
497 * @throws \ImagickException
499 private static function createPermissionBlockForItem($item, $blindcopy, $last_id = 0, $forum_mode = false)
502 $last_id = $item['id'];
507 // Check if we should always deliver our stuff via BCC
508 if (!empty($item['uid'])) {
509 $profile = User::getOwnerDataById($item['uid']);
510 if (!empty($profile)) {
511 $always_bcc = $profile['hide-friends'];
515 if (DI::config()->get('system', 'ap_always_bcc')) {
519 if (self::isAnnounce($item) || DI::config()->get('debug', 'total_ap_delivery') || self::isAPPost($last_id)) {
520 // Will be activated in a later step
521 $networks = Protocol::FEDERATED;
523 // For now only send to these contacts:
524 $networks = [Protocol::ACTIVITYPUB, Protocol::OSTATUS];
527 $data = ['to' => [], 'cc' => [], 'bcc' => []];
529 if ($item['gravity'] == GRAVITY_PARENT) {
530 $actor_profile = APContact::getByURL($item['owner-link']);
532 $actor_profile = APContact::getByURL($item['author-link']);
535 $terms = Tag::getByURIId($item['uri-id'], [Tag::MENTION, Tag::IMPLICIT_MENTION, Tag::EXCLUSIVE_MENTION]);
537 if ($item['private'] != Item::PRIVATE) {
538 // Directly mention the original author upon a quoted reshare.
539 // Else just ensure that the original author receives the reshare.
540 $announce = self::getAnnounceArray($item);
541 if (!empty($announce['comment'])) {
542 $data['to'][] = $announce['actor']['url'];
543 } elseif (!empty($announce)) {
544 $data['cc'][] = $announce['actor']['url'];
547 $data = array_merge($data, self::fetchPermissionBlockFromConversation($item));
549 // Check if the item is completely public or unlisted
550 if ($item['private'] == Item::PUBLIC) {
551 $data['to'][] = ActivityPub::PUBLIC_COLLECTION;
553 $data['cc'][] = ActivityPub::PUBLIC_COLLECTION;
556 foreach ($terms as $term) {
557 $profile = APContact::getByURL($term['url'], false);
558 if (!empty($profile)) {
559 $data['to'][] = $profile['url'];
563 $receiver_list = Item::enumeratePermissions($item, true);
565 foreach ($terms as $term) {
566 $cid = Contact::getIdForURL($term['url'], $item['uid']);
567 if (!empty($cid) && in_array($cid, $receiver_list)) {
568 $contact = DBA::selectFirst('contact', ['url', 'network', 'protocol'], ['id' => $cid]);
569 if (!DBA::isResult($contact) || (!in_array($contact['network'], $networks) && ($contact['protocol'] != Protocol::ACTIVITYPUB))) {
573 if (!empty($profile = APContact::getByURL($contact['url'], false))) {
574 $data['to'][] = $profile['url'];
579 foreach ($receiver_list as $receiver) {
580 $contact = DBA::selectFirst('contact', ['url', 'hidden', 'network', 'protocol'], ['id' => $receiver]);
581 if (!DBA::isResult($contact) || (!in_array($contact['network'], $networks) && ($contact['protocol'] != Protocol::ACTIVITYPUB))) {
585 if (!empty($profile = APContact::getByURL($contact['url'], false))) {
586 if ($contact['hidden'] || $always_bcc) {
587 $data['bcc'][] = $profile['url'];
589 $data['cc'][] = $profile['url'];
595 if (!empty($item['parent'])) {
596 $parents = Item::select(['id', 'author-link', 'owner-link', 'gravity', 'uri'], ['parent' => $item['parent']]);
597 while ($parent = Item::fetch($parents)) {
598 if ($parent['gravity'] == GRAVITY_PARENT) {
599 $profile = APContact::getByURL($parent['owner-link'], false);
600 if (!empty($profile)) {
601 if ($item['gravity'] != GRAVITY_PARENT) {
602 // Comments to forums are directed to the forum
603 // But comments to forums aren't directed to the followers collection
604 // This rule is only valid when the actor isn't the forum.
605 // The forum needs to transmit their content to their followers.
606 if (($profile['type'] == 'Group') && ($profile['url'] != $actor_profile['url'])) {
607 $data['to'][] = $profile['url'];
609 $data['cc'][] = $profile['url'];
610 if (($item['private'] != Item::PRIVATE) && !empty($actor_profile['followers'])) {
611 $data['cc'][] = $actor_profile['followers'];
615 // Public thread parent post always are directed to the followers
616 if (($item['private'] != Item::PRIVATE) && !$forum_mode) {
617 $data['cc'][] = $actor_profile['followers'];
623 // Don't include data from future posts
624 if ($parent['id'] >= $last_id) {
628 $profile = APContact::getByURL($parent['author-link'], false);
629 if (!empty($profile)) {
630 if (($profile['type'] == 'Group') || ($parent['uri'] == $item['thr-parent'])) {
631 $data['to'][] = $profile['url'];
633 $data['cc'][] = $profile['url'];
637 DBA::close($parents);
640 $data['to'] = array_unique($data['to']);
641 $data['cc'] = array_unique($data['cc']);
642 $data['bcc'] = array_unique($data['bcc']);
644 if (($key = array_search($item['author-link'], $data['to'])) !== false) {
645 unset($data['to'][$key]);
648 if (($key = array_search($item['author-link'], $data['cc'])) !== false) {
649 unset($data['cc'][$key]);
652 if (($key = array_search($item['author-link'], $data['bcc'])) !== false) {
653 unset($data['bcc'][$key]);
656 foreach ($data['to'] as $to) {
657 if (($key = array_search($to, $data['cc'])) !== false) {
658 unset($data['cc'][$key]);
661 if (($key = array_search($to, $data['bcc'])) !== false) {
662 unset($data['bcc'][$key]);
666 foreach ($data['cc'] as $cc) {
667 if (($key = array_search($cc, $data['bcc'])) !== false) {
668 unset($data['bcc'][$key]);
672 $receivers = ['to' => array_values($data['to']), 'cc' => array_values($data['cc']), 'bcc' => array_values($data['bcc'])];
675 unset($receivers['bcc']);
682 * Check if an inbox is archived
684 * @param string $url Inbox url
686 * @return boolean "true" if inbox is archived
688 public static function archivedInbox($url)
690 return DBA::exists('inbox-status', ['url' => $url, 'archive' => true]);
694 * Fetches a list of inboxes of followers of a given user
696 * @param integer $uid User ID
697 * @param boolean $personal fetch personal inboxes
698 * @param boolean $all_ap Retrieve all AP enabled inboxes
700 * @return array of follower inboxes
701 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
702 * @throws \ImagickException
704 public static function fetchTargetInboxesforUser($uid, $personal = false, bool $all_ap = false)
710 if (!empty($item['uid'])) {
711 $profile = User::getOwnerDataById($item['uid']);
712 if (!empty($profile)) {
713 $isforum = $profile['account-type'] == User::ACCOUNT_TYPE_COMMUNITY;
717 if (DI::config()->get('debug', 'total_ap_delivery') || $all_ap) {
718 // Will be activated in a later step
719 $networks = Protocol::FEDERATED;
721 // For now only send to these contacts:
722 $networks = [Protocol::ACTIVITYPUB, Protocol::OSTATUS];
725 $condition = ['uid' => $uid, 'archive' => false, 'pending' => false, 'blocked' => false];
728 $condition['rel'] = [Contact::FOLLOWER, Contact::FRIEND];
731 $contacts = DBA::select('contact', ['url', 'network', 'protocol'], $condition);
732 while ($contact = DBA::fetch($contacts)) {
733 if (Contact::isLocal($contact['url'])) {
737 if (!in_array($contact['network'], $networks) && ($contact['protocol'] != Protocol::ACTIVITYPUB)) {
741 if ($isforum && ($contact['network'] == Protocol::DFRN)) {
745 if (Network::isUrlBlocked($contact['url'])) {
749 $profile = APContact::getByURL($contact['url'], false);
750 if (!empty($profile)) {
751 if (empty($profile['sharedinbox']) || $personal) {
752 $target = $profile['inbox'];
754 $target = $profile['sharedinbox'];
756 if (!self::archivedInbox($target)) {
757 $inboxes[$target] = $target;
761 DBA::close($contacts);
767 * Fetches an array of inboxes for the given item and user
769 * @param array $item Item array
770 * @param integer $uid User ID
771 * @param boolean $personal fetch personal inboxes
772 * @param integer $last_id Last item id for adding receivers
773 * @param boolean $forum_mode "true" means that we are sending content to a forum
774 * @return array with inboxes
775 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
776 * @throws \ImagickException
778 public static function fetchTargetInboxes($item, $uid, $personal = false, $last_id = 0, $forum_mode = false)
780 $permissions = self::createPermissionBlockForItem($item, true, $last_id, $forum_mode);
781 if (empty($permissions)) {
787 if ($item['gravity'] == GRAVITY_ACTIVITY) {
788 $item_profile = APContact::getByURL($item['author-link'], false);
790 $item_profile = APContact::getByURL($item['owner-link'], false);
793 if (empty($item_profile)) {
797 $profile_uid = User::getIdForURL($item_profile['url']);
799 foreach (['to', 'cc', 'bto', 'bcc'] as $element) {
800 if (empty($permissions[$element])) {
804 $blindcopy = in_array($element, ['bto', 'bcc']);
806 foreach ($permissions[$element] as $receiver) {
807 if (empty($receiver) || Network::isUrlBlocked($receiver)) {
811 if ($item_profile && ($receiver == $item_profile['followers']) && ($uid == $profile_uid)) {
812 $inboxes = array_merge($inboxes, self::fetchTargetInboxesforUser($uid, $personal, self::isAPPost($last_id)));
814 if (Contact::isLocal($receiver)) {
818 $profile = APContact::getByURL($receiver, false);
819 if (!empty($profile)) {
820 if (empty($profile['sharedinbox']) || $personal || $blindcopy) {
821 $target = $profile['inbox'];
823 $target = $profile['sharedinbox'];
825 if (!self::archivedInbox($target)) {
826 $inboxes[$target] = $target;
837 * Creates an array in the structure of the item table for a given mail id
839 * @param integer $mail_id
844 public static function ItemArrayFromMail($mail_id)
846 $mail = DBA::selectFirst('mail', [], ['id' => $mail_id]);
847 if (!DBA::isResult($mail)) {
851 $mail['uri-id'] = ItemURI::insert(['uri' => $mail['uri'], 'guid' => $mail['guid']]);
853 $reply = DBA::selectFirst('mail', ['uri'], ['parent-uri' => $mail['parent-uri'], 'reply' => false]);
855 // Making the post more compatible for Mastodon by:
856 // - Making it a note and not an article (no title)
857 // - Moving the title into the "summary" field that is used as a "content warning"
858 $mail['body'] = '[abstract]' . $mail['title'] . "[/abstract]\n" . $mail['body'];
861 $mail['author-link'] = $mail['owner-link'] = $mail['from-url'];
862 $mail['allow_cid'] = '<'.$mail['contact-id'].'>';
863 $mail['allow_gid'] = '';
864 $mail['deny_cid'] = '';
865 $mail['deny_gid'] = '';
866 $mail['private'] = true;
867 $mail['deleted'] = false;
868 $mail['edited'] = $mail['created'];
869 $mail['plink'] = $mail['uri'];
870 $mail['thr-parent'] = $reply['uri'];
871 $mail['gravity'] = ($mail['reply'] ? GRAVITY_COMMENT: GRAVITY_PARENT);
873 $mail['event-type'] = '';
881 * Creates an activity array for a given mail id
883 * @param integer $mail_id
884 * @param boolean $object_mode Is the activity item is used inside another object?
886 * @return array of activity
889 public static function createActivityFromMail($mail_id, $object_mode = false)
891 $mail = self::ItemArrayFromMail($mail_id);
895 $object = self::createNote($mail);
898 $data = ['@context' => ActivityPub::CONTEXT];
903 $data['id'] = $mail['uri'] . '/Create';
904 $data['type'] = 'Create';
905 $data['actor'] = $mail['author-link'];
906 $data['published'] = DateTimeFormat::utc($mail['created'] . '+00:00', DateTimeFormat::ATOM);
907 $data['instrument'] = self::getService();
908 $data = array_merge($data, self::createPermissionBlockForItem($mail, true));
910 if (empty($data['to']) && !empty($data['cc'])) {
911 $data['to'] = $data['cc'];
914 if (empty($data['to']) && !empty($data['bcc'])) {
915 $data['to'] = $data['bcc'];
921 $object['to'] = $data['to'];
922 $object['tag'] = [['type' => 'Mention', 'href' => $object['to'][0], 'name' => '']];
924 unset($object['cc']);
925 unset($object['bcc']);
927 $data['directMessage'] = true;
929 $data['object'] = $object;
931 $owner = User::getOwnerDataById($mail['uid']);
933 if (!$object_mode && !empty($owner)) {
934 return LDSignature::sign($data, $owner);
941 * Returns the activity type of a given item
945 * @return string with activity type
946 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
947 * @throws \ImagickException
949 private static function getTypeOfItem($item)
953 // Only check for a reshare, if it is a real reshare and no quoted reshare
954 if (strpos($item['body'], "[share") === 0) {
955 $announce = self::getAnnounceArray($item);
956 $reshared = !empty($announce);
961 } elseif ($item['verb'] == Activity::POST) {
962 if ($item['created'] == $item['edited']) {
967 } elseif ($item['verb'] == Activity::LIKE) {
969 } elseif ($item['verb'] == Activity::DISLIKE) {
971 } elseif ($item['verb'] == Activity::ATTEND) {
973 } elseif ($item['verb'] == Activity::ATTENDNO) {
975 } elseif ($item['verb'] == Activity::ATTENDMAYBE) {
976 $type = 'TentativeAccept';
977 } elseif ($item['verb'] == Activity::FOLLOW) {
979 } elseif ($item['verb'] == Activity::TAG) {
981 } elseif ($item['verb'] == Activity::ANNOUNCE) {
991 * Creates the activity or fetches it from the cache
993 * @param integer $item_id
994 * @param boolean $force Force new cache entry
996 * @return array with the activity
999 public static function createCachedActivityFromItem($item_id, $force = false)
1001 $cachekey = 'APDelivery:createActivity:' . $item_id;
1004 $data = DI::cache()->get($cachekey);
1005 if (!is_null($data)) {
1010 $data = self::createActivityFromItem($item_id);
1012 DI::cache()->set($cachekey, $data, Duration::QUARTER_HOUR);
1017 * Creates an activity array for a given item id
1019 * @param integer $item_id
1020 * @param boolean $object_mode Is the activity item is used inside another object?
1022 * @return false|array
1023 * @throws \Exception
1025 public static function createActivityFromItem(int $item_id, bool $object_mode = false)
1027 Logger::info('Fetching activity', ['item' => $item_id]);
1028 $item = Item::selectFirst([], ['id' => $item_id, 'parent-network' => Protocol::NATIVE_SUPPORT]);
1029 if (!DBA::isResult($item)) {
1033 // In case of a forum post ensure to return the original post if author and forum are on the same machine
1034 if (!empty($item['forum_mode'])) {
1035 $author = Contact::getById($item['author-id'], ['nurl']);
1036 if (!empty($author['nurl'])) {
1037 $self = Contact::selectFirst(['uid'], ['nurl' => $author['nurl'], 'self' => true]);
1038 if (!empty($self['uid'])) {
1039 $forum_item = Item::selectFirst([], ['uri-id' => $item['uri-id'], 'uid' => $self['uid']]);
1040 if (DBA::isResult($item)) {
1041 $item = $forum_item;
1047 if (empty($item['uri-id'])) {
1048 Logger::warning('Item without uri-id', ['item' => $item]);
1052 $condition = ['item-uri' => $item['uri'], 'protocol' => Conversation::PARCEL_ACTIVITYPUB];
1053 $conversation = DBA::selectFirst('conversation', ['source'], $condition);
1054 if (!$item['origin'] && DBA::isResult($conversation)) {
1055 $data = json_decode($conversation['source'], true);
1056 if (!empty($data['type'])) {
1057 if (in_array($data['type'], ['Create', 'Update'])) {
1059 unset($data['@context']);
1060 unset($data['signature']);
1062 Logger::info('Return stored conversation', ['item' => $item_id]);
1064 } elseif (in_array('as:' . $data['type'], Receiver::CONTENT_TYPES)) {
1065 if (!empty($data['@context'])) {
1066 $context = $data['@context'];
1067 unset($data['@context']);
1069 unset($data['actor']);
1075 $type = self::getTypeOfItem($item);
1077 if (!$object_mode) {
1078 $data = ['@context' => $context ?? ActivityPub::CONTEXT];
1080 if ($item['deleted'] && ($item['gravity'] == GRAVITY_ACTIVITY)) {
1082 } elseif ($item['deleted']) {
1089 if (($item['gravity'] == GRAVITY_ACTIVITY) && ($type != 'Undo')) {
1090 $data['id'] = $item['uri'];
1092 $data['id'] = $item['uri'] . '/' . $type;
1095 $data['type'] = $type;
1097 if (($type != 'Announce') || ($item['gravity'] != GRAVITY_PARENT)) {
1098 $data['actor'] = $item['author-link'];
1100 $data['actor'] = $item['owner-link'];
1103 $data['published'] = DateTimeFormat::utc($item['created'] . '+00:00', DateTimeFormat::ATOM);
1105 $data['instrument'] = self::getService();
1107 $data = array_merge($data, self::createPermissionBlockForItem($item, false));
1109 if (in_array($data['type'], ['Create', 'Update', 'Delete'])) {
1110 $data['object'] = $object ?? self::createNote($item);
1111 } elseif ($data['type'] == 'Add') {
1112 $data = self::createAddTag($item, $data);
1113 } elseif ($data['type'] == 'Announce') {
1114 if ($item['verb'] == ACTIVITY::ANNOUNCE) {
1115 $data['object'] = $item['thr-parent'];
1117 $data = self::createAnnounce($item, $data);
1119 } elseif ($data['type'] == 'Follow') {
1120 $data['object'] = $item['parent-uri'];
1121 } elseif ($data['type'] == 'Undo') {
1122 $data['object'] = self::createActivityFromItem($item_id, true);
1124 $data['diaspora:guid'] = $item['guid'];
1125 if (!empty($item['signed_text'])) {
1126 $data['diaspora:like'] = $item['signed_text'];
1128 $data['object'] = $item['thr-parent'];
1131 if (!empty($item['contact-uid'])) {
1132 $uid = $item['contact-uid'];
1134 $uid = $item['uid'];
1137 $owner = User::getOwnerDataById($uid);
1139 Logger::info('Fetched activity', ['item' => $item_id, 'uid' => $uid]);
1141 // We don't sign if we aren't the actor. This is important for relaying content especially for forums
1142 if (!$object_mode && !empty($owner) && ($data['actor'] == $owner['url'])) {
1143 return LDSignature::sign($data, $owner);
1148 /// @todo Create "conversation" entry
1152 * Creates a location entry for a given item array
1154 * @param array $item
1156 * @return array with location array
1158 private static function createLocation($item)
1160 $location = ['type' => 'Place'];
1162 if (!empty($item['location'])) {
1163 $location['name'] = $item['location'];
1168 if (empty($item['coord'])) {
1169 $coord = Map::getCoordinates($item['location']);
1171 $coords = explode(' ', $item['coord']);
1172 if (count($coords) == 2) {
1173 $coord = ['lat' => $coords[0], 'lon' => $coords[1]];
1177 if (!empty($coord['lat']) && !empty($coord['lon'])) {
1178 $location['latitude'] = $coord['lat'];
1179 $location['longitude'] = $coord['lon'];
1186 * Returns a tag array for a given item array
1188 * @param array $item
1190 * @return array of tags
1191 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1193 private static function createTagList($item)
1197 $terms = Tag::getByURIId($item['uri-id'], [Tag::HASHTAG, Tag::MENTION, Tag::IMPLICIT_MENTION, Tag::EXCLUSIVE_MENTION]);
1198 foreach ($terms as $term) {
1199 if ($term['type'] == Tag::HASHTAG) {
1200 $url = DI::baseUrl() . '/search?tag=' . urlencode($term['name']);
1201 $tags[] = ['type' => 'Hashtag', 'href' => $url, 'name' => '#' . $term['name']];
1203 $contact = Contact::getByURL($term['url'], false, ['addr']);
1204 if (empty($contact)) {
1207 if (!empty($contact['addr'])) {
1208 $mention = '@' . $contact['addr'];
1210 $mention = '@' . $term['url'];
1213 $tags[] = ['type' => 'Mention', 'href' => $term['url'], 'name' => $mention];
1217 $announce = self::getAnnounceArray($item);
1218 // Mention the original author upon commented reshares
1219 if (!empty($announce['comment'])) {
1220 $tags[] = ['type' => 'Mention', 'href' => $announce['actor']['url'], 'name' => '@' . $announce['actor']['addr']];
1227 * Adds attachment data to the JSON document
1229 * @param array $item Data of the item that is to be posted
1230 * @param string $type Object type
1232 * @return array with attachment data
1233 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1235 private static function createAttachmentList($item, $type)
1239 // Currently deactivated, since it creates side effects on Mastodon and Pleroma.
1240 // It will be reactivated, once this cleared.
1242 $attach_data = BBCode::getAttachmentData($item['body']);
1243 if (!empty($attach_data['url'])) {
1244 $attachment = ['type' => 'Page',
1245 'mediaType' => 'text/html',
1246 'url' => $attach_data['url']];
1248 if (!empty($attach_data['title'])) {
1249 $attachment['name'] = $attach_data['title'];
1252 if (!empty($attach_data['description'])) {
1253 $attachment['summary'] = $attach_data['description'];
1256 if (!empty($attach_data['image'])) {
1257 $imgdata = Images::getInfoFromURLCached($attach_data['image']);
1259 $attachment['icon'] = ['type' => 'Image',
1260 'mediaType' => $imgdata['mime'],
1261 'width' => $imgdata[0],
1262 'height' => $imgdata[1],
1263 'url' => $attach_data['image']];
1267 $attachments[] = $attachment;
1270 foreach (Post\Media::getByURIId($item['uri-id'], [Post\Media::DOCUMENT, Post\Media::TORRENT, Post\Media::UNKNOWN]) as $attachment) {
1271 $attachments[] = ['type' => 'Document',
1272 'mediaType' => $attachment['mimetype'],
1273 'url' => $attachment['url'],
1274 'name' => $attachment['description']];
1277 if ($type != 'Note') {
1278 return $attachments;
1281 foreach (Post\Media::getByURIId($item['uri-id'], [Post\Media::AUDIO, Post\Media::IMAGE, Post\Media::VIDEO]) as $attachment) {
1282 $attachments[] = ['type' => 'Document',
1283 'mediaType' => $attachment['mimetype'],
1284 'url' => $attachment['url'],
1285 'name' => $attachment['description']];
1288 return $attachments;
1292 * Callback function to replace a Friendica style mention in a mention that is used on AP
1294 * @param array $match Matching values for the callback
1295 * @return string Replaced mention
1296 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1298 private static function mentionCallback($match)
1300 if (empty($match[1])) {
1304 $data = Contact::getByURL($match[1], false, ['url', 'alias', 'nick']);
1305 if (empty($data['nick'])) {
1309 return '[url=' . ($data['alias'] ?: $data['url']) . ']@' . $data['nick'] . '[/url]';
1313 * Remove image elements since they are added as attachment
1315 * @param string $body
1317 * @return string with removed images
1319 private static function removePictures($body)
1321 // Simplify image codes
1322 $body = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $body);
1323 $body = preg_replace("/\[img\=(.*?)\](.*?)\[\/img\]/ism", '[img]$1[/img]', $body);
1325 // Now remove local links
1326 $body = preg_replace_callback(
1327 '/\[url=([^\[\]]*)\]\[img\](.*)\[\/img\]\[\/url\]/Usi',
1329 // We remove the link when it is a link to a local photo page
1330 if (Photo::isLocalPage($match[1])) {
1333 // otherwise we just return the link
1334 return '[url]' . $match[1] . '[/url]';
1339 // Remove all pictures
1340 $body = preg_replace("/\[img\]([^\[\]]*)\[\/img\]/Usi", '', $body);
1346 * Fetches the "context" value for a givem item array from the "conversation" table
1348 * @param array $item
1350 * @return string with context url
1351 * @throws \Exception
1353 private static function fetchContextURLForItem($item)
1355 $conversation = DBA::selectFirst('conversation', ['conversation-href', 'conversation-uri'], ['item-uri' => $item['parent-uri']]);
1356 if (DBA::isResult($conversation) && !empty($conversation['conversation-href'])) {
1357 $context_uri = $conversation['conversation-href'];
1358 } elseif (DBA::isResult($conversation) && !empty($conversation['conversation-uri'])) {
1359 $context_uri = $conversation['conversation-uri'];
1361 $context_uri = $item['parent-uri'] . '#context';
1363 return $context_uri;
1367 * Returns if the post contains sensitive content ("nsfw")
1369 * @param integer $uri_id
1372 * @throws \Exception
1374 private static function isSensitive($uri_id)
1376 return DBA::exists('tag-view', ['uri-id' => $uri_id, 'name' => 'nsfw']);
1380 * Creates event data
1382 * @param array $item
1384 * @return array with the event data
1385 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1387 public static function createEvent($item)
1390 $event['name'] = $item['event-summary'];
1391 $event['content'] = BBCode::convert($item['event-desc'], false, BBCode::ACTIVITYPUB);
1392 $event['startTime'] = DateTimeFormat::utc($item['event-start'] . '+00:00', DateTimeFormat::ATOM);
1394 if (!$item['event-nofinish']) {
1395 $event['endTime'] = DateTimeFormat::utc($item['event-finish'] . '+00:00', DateTimeFormat::ATOM);
1398 if (!empty($item['event-location'])) {
1399 $item['location'] = $item['event-location'];
1400 $event['location'] = self::createLocation($item);
1407 * Creates a note/article object array
1409 * @param array $item
1411 * @return array with the object data
1412 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1413 * @throws \ImagickException
1415 public static function createNote($item)
1421 if ($item['event-type'] == 'event') {
1423 } elseif (!empty($item['title'])) {
1429 if ($item['deleted']) {
1430 $type = 'Tombstone';
1434 $data['id'] = $item['uri'];
1435 $data['type'] = $type;
1437 if ($item['deleted']) {
1441 $data['summary'] = BBCode::toPlaintext(BBCode::getAbstract($item['body'], Protocol::ACTIVITYPUB));
1443 if ($item['uri'] != $item['thr-parent']) {
1444 $data['inReplyTo'] = $item['thr-parent'];
1446 $data['inReplyTo'] = null;
1449 $data['diaspora:guid'] = $item['guid'];
1450 $data['published'] = DateTimeFormat::utc($item['created'] . '+00:00', DateTimeFormat::ATOM);
1452 if ($item['created'] != $item['edited']) {
1453 $data['updated'] = DateTimeFormat::utc($item['edited'] . '+00:00', DateTimeFormat::ATOM);
1456 $data['url'] = $item['plink'];
1457 $data['attributedTo'] = $item['author-link'];
1458 $data['sensitive'] = self::isSensitive($item['uri-id']);
1459 $data['context'] = self::fetchContextURLForItem($item);
1461 if (!empty($item['title'])) {
1462 $data['name'] = BBCode::toPlaintext($item['title'], false);
1465 $permission_block = self::createPermissionBlockForItem($item, false);
1467 $body = $item['body'];
1469 if ($type == 'Note') {
1470 $body = $item['raw-body'] ?? self::removePictures($body);
1471 } elseif (($type == 'Article') && empty($data['summary'])) {
1472 $data['summary'] = BBCode::toPlaintext(Plaintext::shorten(self::removePictures($body), 1000));
1475 if (empty($item['uid']) || !Feature::isEnabled($item['uid'], 'explicit_mentions')) {
1476 $body = self::prependMentions($body, $item['uri-id'], $item['author-link']);
1479 if ($type == 'Event') {
1480 $data = array_merge($data, self::createEvent($item));
1482 $regexp = "/[@!]\[url\=([^\[\]]*)\].*?\[\/url\]/ism";
1483 $body = preg_replace_callback($regexp, ['self', 'mentionCallback'], $body);
1485 $data['content'] = BBCode::convert($body, false, BBCode::ACTIVITYPUB);
1488 // The regular "content" field does contain a minimized HTML. This is done since systems like
1489 // Mastodon has got problems with - for example - embedded pictures.
1490 // The contentMap does contain the unmodified HTML.
1491 $language = self::getLanguage($item);
1492 if (!empty($language)) {
1493 $regexp = "/[@!]\[url\=([^\[\]]*)\].*?\[\/url\]/ism";
1494 $richbody = preg_replace_callback($regexp, ['self', 'mentionCallback'], $item['body']);
1495 $richbody = BBCode::removeAttachment($richbody);
1497 $data['contentMap'][$language] = BBCode::convert($richbody, false);
1500 $data['source'] = ['content' => $item['body'], 'mediaType' => "text/bbcode"];
1502 if (!empty($item['signed_text']) && ($item['uri'] != $item['thr-parent'])) {
1503 $data['diaspora:comment'] = $item['signed_text'];
1506 $data['attachment'] = self::createAttachmentList($item, $type);
1507 $data['tag'] = self::createTagList($item);
1509 if (empty($data['location']) && (!empty($item['coord']) || !empty($item['location']))) {
1510 $data['location'] = self::createLocation($item);
1513 if (!empty($item['app'])) {
1514 $data['generator'] = ['type' => 'Application', 'name' => $item['app']];
1517 $data = array_merge($data, $permission_block);
1523 * Fetches the language from the post, the user or the system.
1525 * @param array $item
1527 * @return string language string
1529 private static function getLanguage(array $item)
1531 // Try to fetch the language from the post itself
1532 if (!empty($item['language'])) {
1533 $languages = array_keys(json_decode($item['language'], true));
1534 if (!empty($languages[0])) {
1535 return $languages[0];
1539 // Otherwise use the user's language
1540 if (!empty($item['uid'])) {
1541 $user = DBA::selectFirst('user', ['language'], ['uid' => $item['uid']]);
1542 if (!empty($user['language'])) {
1543 return $user['language'];
1547 // And finally just use the system language
1548 return DI::config()->get('system', 'language');
1552 * Creates an an "add tag" entry
1554 * @param array $item
1555 * @param array $data activity data
1557 * @return array with activity data for adding tags
1558 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1559 * @throws \ImagickException
1561 private static function createAddTag($item, $data)
1563 $object = XML::parseString($item['object']);
1564 $target = XML::parseString($item["target"]);
1566 $data['diaspora:guid'] = $item['guid'];
1567 $data['actor'] = $item['author-link'];
1568 $data['target'] = (string)$target->id;
1569 $data['summary'] = BBCode::toPlaintext($item['body']);
1570 $data['object'] = ['id' => (string)$object->id, 'type' => 'tag', 'name' => (string)$object->title, 'content' => (string)$object->content];
1576 * Creates an announce object entry
1578 * @param array $item
1579 * @param array $data activity data
1581 * @return array with activity data
1582 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1583 * @throws \ImagickException
1585 private static function createAnnounce($item, $data)
1587 $orig_body = $item['body'];
1588 $announce = self::getAnnounceArray($item);
1589 if (empty($announce)) {
1590 $data['type'] = 'Create';
1591 $data['object'] = self::createNote($item);
1595 if (empty($announce['comment'])) {
1596 // Pure announce, without a quote
1597 $data['type'] = 'Announce';
1598 $data['object'] = $announce['object']['uri'];
1603 $data['type'] = 'Create';
1604 $item['body'] = $announce['comment'] . "\n" . $announce['object']['plink'];
1605 $data['object'] = self::createNote($item);
1607 /// @todo Finally descide how to implement this in AP. This is a possible way:
1608 $data['object']['attachment'][] = self::createNote($announce['object']);
1610 $data['object']['source']['content'] = $orig_body;
1615 * Return announce related data if the item is an annunce
1617 * @param array $item
1621 public static function getAnnounceArray($item)
1623 $reshared = Item::getShareArray($item);
1624 if (empty($reshared['guid'])) {
1628 $reshared_item = Item::selectFirst([], ['guid' => $reshared['guid']]);
1629 if (!DBA::isResult($reshared_item)) {
1633 if (!in_array($reshared_item['network'], [Protocol::ACTIVITYPUB, Protocol::DFRN])) {
1637 $profile = APContact::getByURL($reshared_item['author-link'], false);
1638 if (empty($profile)) {
1642 return ['object' => $reshared_item, 'actor' => $profile, 'comment' => $reshared['comment']];
1646 * Checks if the provided item array is an announce
1648 * @param array $item
1652 public static function isAnnounce($item)
1654 if (!empty($item['verb']) && ($item['verb'] == Activity::ANNOUNCE)) {
1658 $announce = self::getAnnounceArray($item);
1659 if (empty($announce)) {
1663 return empty($announce['comment']);
1667 * Creates an activity id for a given contact id
1669 * @param integer $cid Contact ID of target
1671 * @return bool|string activity id
1673 public static function activityIDFromContact($cid)
1675 $contact = DBA::selectFirst('contact', ['uid', 'id', 'created'], ['id' => $cid]);
1676 if (!DBA::isResult($contact)) {
1680 $hash = hash('ripemd128', $contact['uid'].'-'.$contact['id'].'-'.$contact['created']);
1681 $uuid = substr($hash, 0, 8). '-' . substr($hash, 8, 4) . '-' . substr($hash, 12, 4) . '-' . substr($hash, 16, 4) . '-' . substr($hash, 20, 12);
1682 return DI::baseUrl() . '/activity/' . $uuid;
1686 * Transmits a contact suggestion to a given inbox
1688 * @param integer $uid User ID
1689 * @param string $inbox Target inbox
1690 * @param integer $suggestion_id Suggestion ID
1692 * @return boolean was the transmission successful?
1693 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1695 public static function sendContactSuggestion($uid, $inbox, $suggestion_id)
1697 $owner = User::getOwnerDataById($uid);
1699 $suggestion = DI::fsuggest()->getById($suggestion_id);
1701 $data = ['@context' => ActivityPub::CONTEXT,
1702 'id' => DI::baseUrl() . '/activity/' . System::createGUID(),
1703 'type' => 'Announce',
1704 'actor' => $owner['url'],
1705 'object' => $suggestion->url,
1706 'content' => $suggestion->note,
1707 'instrument' => self::getService(),
1708 'to' => [ActivityPub::PUBLIC_COLLECTION],
1711 $signed = LDSignature::sign($data, $owner);
1713 Logger::log('Deliver profile deletion for user ' . $uid . ' to ' . $inbox . ' via ActivityPub', Logger::DEBUG);
1714 return HTTPSignature::transmit($signed, $inbox, $uid);
1718 * Transmits a profile relocation to a given inbox
1720 * @param integer $uid User ID
1721 * @param string $inbox Target inbox
1723 * @return boolean was the transmission successful?
1724 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1726 public static function sendProfileRelocation($uid, $inbox)
1728 $owner = User::getOwnerDataById($uid);
1730 $data = ['@context' => ActivityPub::CONTEXT,
1731 'id' => DI::baseUrl() . '/activity/' . System::createGUID(),
1732 'type' => 'dfrn:relocate',
1733 'actor' => $owner['url'],
1734 'object' => $owner['url'],
1735 'published' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
1736 'instrument' => self::getService(),
1737 'to' => [ActivityPub::PUBLIC_COLLECTION],
1740 $signed = LDSignature::sign($data, $owner);
1742 Logger::log('Deliver profile relocation for user ' . $uid . ' to ' . $inbox . ' via ActivityPub', Logger::DEBUG);
1743 return HTTPSignature::transmit($signed, $inbox, $uid);
1747 * Transmits a profile deletion to a given inbox
1749 * @param integer $uid User ID
1750 * @param string $inbox Target inbox
1752 * @return boolean was the transmission successful?
1753 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1755 public static function sendProfileDeletion($uid, $inbox)
1757 $owner = User::getOwnerDataById($uid);
1759 if (empty($owner)) {
1760 Logger::error('No owner data found, the deletion message cannot be processed.', ['user' => $uid]);
1764 if (empty($owner['uprvkey'])) {
1765 Logger::error('No private key for owner found, the deletion message cannot be processed.', ['user' => $uid]);
1769 $data = ['@context' => ActivityPub::CONTEXT,
1770 'id' => DI::baseUrl() . '/activity/' . System::createGUID(),
1772 'actor' => $owner['url'],
1773 'object' => $owner['url'],
1774 'published' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
1775 'instrument' => self::getService(),
1776 'to' => [ActivityPub::PUBLIC_COLLECTION],
1779 $signed = LDSignature::sign($data, $owner);
1781 Logger::log('Deliver profile deletion for user ' . $uid . ' to ' . $inbox . ' via ActivityPub', Logger::DEBUG);
1782 return HTTPSignature::transmit($signed, $inbox, $uid);
1786 * Transmits a profile change to a given inbox
1788 * @param integer $uid User ID
1789 * @param string $inbox Target inbox
1791 * @return boolean was the transmission successful?
1792 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1793 * @throws \ImagickException
1795 public static function sendProfileUpdate($uid, $inbox)
1797 $owner = User::getOwnerDataById($uid);
1798 $profile = APContact::getByURL($owner['url']);
1800 $data = ['@context' => ActivityPub::CONTEXT,
1801 'id' => DI::baseUrl() . '/activity/' . System::createGUID(),
1803 'actor' => $owner['url'],
1804 'object' => self::getProfile($uid),
1805 'published' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
1806 'instrument' => self::getService(),
1807 'to' => [$profile['followers']],
1810 $signed = LDSignature::sign($data, $owner);
1812 Logger::log('Deliver profile update for user ' . $uid . ' to ' . $inbox . ' via ActivityPub', Logger::DEBUG);
1813 return HTTPSignature::transmit($signed, $inbox, $uid);
1817 * Transmits a given activity to a target
1819 * @param string $activity Type name
1820 * @param string $target Target profile
1821 * @param integer $uid User ID
1823 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1824 * @throws \ImagickException
1825 * @throws \Exception
1827 public static function sendActivity($activity, $target, $uid, $id = '')
1829 $profile = APContact::getByURL($target);
1830 if (empty($profile['inbox'])) {
1831 Logger::warning('No inbox found for target', ['target' => $target, 'profile' => $profile]);
1835 $owner = User::getOwnerDataById($uid);
1838 $id = DI::baseUrl() . '/activity/' . System::createGUID();
1841 $data = ['@context' => ActivityPub::CONTEXT,
1843 'type' => $activity,
1844 'actor' => $owner['url'],
1845 'object' => $profile['url'],
1846 'instrument' => self::getService(),
1847 'to' => [$profile['url']]];
1849 Logger::log('Sending activity ' . $activity . ' to ' . $target . ' for user ' . $uid, Logger::DEBUG);
1851 $signed = LDSignature::sign($data, $owner);
1852 return HTTPSignature::transmit($signed, $profile['inbox'], $uid);
1856 * Transmits a "follow object" activity to a target
1857 * This is a preparation for sending automated "follow" requests when receiving "Announce" messages
1859 * @param string $object Object URL
1860 * @param string $target Target profile
1861 * @param integer $uid User ID
1863 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1864 * @throws \ImagickException
1865 * @throws \Exception
1867 public static function sendFollowObject($object, $target, $uid = 0)
1869 $profile = APContact::getByURL($target);
1870 if (empty($profile['inbox'])) {
1871 Logger::warning('No inbox found for target', ['target' => $target, 'profile' => $profile]);
1876 // Fetch the list of administrators
1877 $admin_mail = explode(',', str_replace(' ', '', DI::config()->get('config', 'admin_email')));
1879 // We need to use some user as a sender. It doesn't care who it will send. We will use an administrator account.
1880 $condition = ['verified' => true, 'blocked' => false, 'account_removed' => false, 'account_expired' => false, 'email' => $admin_mail];
1881 $first_user = DBA::selectFirst('user', ['uid'], $condition);
1882 $uid = $first_user['uid'];
1885 $condition = ['verb' => Activity::FOLLOW, 'uid' => 0, 'parent-uri' => $object,
1886 'author-id' => Contact::getPublicIdByUserId($uid)];
1887 if (Item::exists($condition)) {
1888 Logger::log('Follow for ' . $object . ' for user ' . $uid . ' does already exist.', Logger::DEBUG);
1892 $owner = User::getOwnerDataById($uid);
1894 $data = ['@context' => ActivityPub::CONTEXT,
1895 'id' => DI::baseUrl() . '/activity/' . System::createGUID(),
1897 'actor' => $owner['url'],
1898 'object' => $object,
1899 'instrument' => self::getService(),
1900 'to' => [$profile['url']]];
1902 Logger::log('Sending follow ' . $object . ' to ' . $target . ' for user ' . $uid, Logger::DEBUG);
1904 $signed = LDSignature::sign($data, $owner);
1905 return HTTPSignature::transmit($signed, $profile['inbox'], $uid);
1909 * Transmit a message that the contact request had been accepted
1911 * @param string $target Target profile
1913 * @param integer $uid User ID
1914 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1915 * @throws \ImagickException
1917 public static function sendContactAccept($target, $id, $uid)
1919 $profile = APContact::getByURL($target);
1920 if (empty($profile['inbox'])) {
1921 Logger::warning('No inbox found for target', ['target' => $target, 'profile' => $profile]);
1925 $owner = User::getOwnerDataById($uid);
1926 $data = ['@context' => ActivityPub::CONTEXT,
1927 'id' => DI::baseUrl() . '/activity/' . System::createGUID(),
1929 'actor' => $owner['url'],
1931 'id' => (string)$id,
1933 'actor' => $profile['url'],
1934 'object' => $owner['url']
1936 'instrument' => self::getService(),
1937 'to' => [$profile['url']]];
1939 Logger::debug('Sending accept to ' . $target . ' for user ' . $uid . ' with id ' . $id);
1941 $signed = LDSignature::sign($data, $owner);
1942 HTTPSignature::transmit($signed, $profile['inbox'], $uid);
1946 * Reject a contact request or terminates the contact relation
1948 * @param string $target Target profile
1950 * @param integer $uid User ID
1951 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1952 * @throws \ImagickException
1954 public static function sendContactReject($target, $id, $uid)
1956 $profile = APContact::getByURL($target);
1957 if (empty($profile['inbox'])) {
1958 Logger::warning('No inbox found for target', ['target' => $target, 'profile' => $profile]);
1962 $owner = User::getOwnerDataById($uid);
1963 $data = ['@context' => ActivityPub::CONTEXT,
1964 'id' => DI::baseUrl() . '/activity/' . System::createGUID(),
1966 'actor' => $owner['url'],
1968 'id' => (string)$id,
1970 'actor' => $profile['url'],
1971 'object' => $owner['url']
1973 'instrument' => self::getService(),
1974 'to' => [$profile['url']]];
1976 Logger::debug('Sending reject to ' . $target . ' for user ' . $uid . ' with id ' . $id);
1978 $signed = LDSignature::sign($data, $owner);
1979 HTTPSignature::transmit($signed, $profile['inbox'], $uid);
1983 * Transmits a message that we don't want to follow this contact anymore
1985 * @param string $target Target profile
1986 * @param integer $uid User ID
1987 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1988 * @throws \ImagickException
1989 * @throws \Exception
1990 * @return bool success
1992 public static function sendContactUndo($target, $cid, $uid)
1994 $profile = APContact::getByURL($target);
1995 if (empty($profile['inbox'])) {
1996 Logger::warning('No inbox found for target', ['target' => $target, 'profile' => $profile]);
2000 $object_id = self::activityIDFromContact($cid);
2001 if (empty($object_id)) {
2005 $id = DI::baseUrl() . '/activity/' . System::createGUID();
2007 $owner = User::getOwnerDataById($uid);
2008 $data = ['@context' => ActivityPub::CONTEXT,
2011 'actor' => $owner['url'],
2012 'object' => ['id' => $object_id, 'type' => 'Follow',
2013 'actor' => $owner['url'],
2014 'object' => $profile['url']],
2015 'instrument' => self::getService(),
2016 'to' => [$profile['url']]];
2018 Logger::log('Sending undo to ' . $target . ' for user ' . $uid . ' with id ' . $id, Logger::DEBUG);
2020 $signed = LDSignature::sign($data, $owner);
2021 return HTTPSignature::transmit($signed, $profile['inbox'], $uid);
2024 private static function prependMentions($body, int $uriid, string $authorLink)
2028 foreach (Tag::getByURIId($uriid, [Tag::IMPLICIT_MENTION]) as $tag) {
2029 $profile = Contact::getByURL($tag['url'], false, ['addr', 'contact-type', 'nick']);
2030 if (!empty($profile['addr'])
2031 && $profile['contact-type'] != Contact::TYPE_COMMUNITY
2032 && !strstr($body, $profile['addr'])
2033 && !strstr($body, $tag['url'])
2034 && $tag['url'] !== $authorLink
2036 $mentions[] = '@[url=' . $tag['url'] . ']' . $profile['nick'] . '[/url]';
2040 $mentions[] = $body;
2042 return implode(' ', $mentions);