3 * @file src/Protocol/ActivityPub/Transmitter.php
5 namespace Friendica\Protocol\ActivityPub;
7 use Friendica\BaseObject;
8 use Friendica\Database\DBA;
9 use Friendica\Core\Logger;
10 use Friendica\Core\System;
11 use Friendica\Util\HTTPSignature;
12 use Friendica\Core\Protocol;
13 use Friendica\Model\Conversation;
14 use Friendica\Model\Contact;
15 use Friendica\Model\APContact;
16 use Friendica\Model\Item;
17 use Friendica\Model\Term;
18 use Friendica\Model\User;
19 use Friendica\Util\DateTimeFormat;
20 use Friendica\Content\Text\BBCode;
21 use Friendica\Util\JsonLD;
22 use Friendica\Util\LDSignature;
23 use Friendica\Model\Profile;
24 use Friendica\Core\Config;
25 use Friendica\Object\Image;
26 use Friendica\Protocol\ActivityPub;
27 use Friendica\Protocol\Diaspora;
28 use Friendica\Core\Cache;
29 use Friendica\Util\Map;
31 require_once 'include/api.php';
34 * @brief ActivityPub Transmitter Protocol class
42 * collects the lost of followers of the given owner
44 * @param array $owner Owner array
45 * @param integer $page Page number
47 * @return array of owners
49 public static function getFollowers($owner, $page = null)
51 $condition = ['rel' => [Contact::FOLLOWER, Contact::FRIEND], 'network' => Protocol::NATIVE_SUPPORT, 'uid' => $owner['uid'],
52 'self' => false, 'hidden' => false, 'archive' => false, 'pending' => false];
53 $count = DBA::count('contact', $condition);
55 $data = ['@context' => ActivityPub::CONTEXT];
56 $data['id'] = System::baseUrl() . '/followers/' . $owner['nickname'];
57 $data['type'] = 'OrderedCollection';
58 $data['totalItems'] = $count;
60 // When we hide our friends we will only show the pure number but don't allow more.
61 $profile = Profile::getByUID($owner['uid']);
62 if (!empty($profile['hide-friends'])) {
67 $data['first'] = System::baseUrl() . '/followers/' . $owner['nickname'] . '?page=1';
71 $contacts = DBA::select('contact', ['url'], $condition, ['limit' => [($page - 1) * 100, 100]]);
72 while ($contact = DBA::fetch($contacts)) {
73 $list[] = $contact['url'];
77 $data['next'] = System::baseUrl() . '/followers/' . $owner['nickname'] . '?page=' . ($page + 1);
80 $data['partOf'] = System::baseUrl() . '/followers/' . $owner['nickname'];
82 $data['orderedItems'] = $list;
89 * Create list of following contacts
91 * @param array $owner Owner array
92 * @param integer $page Page numbe
94 * @return array of following contacts
96 public static function getFollowing($owner, $page = null)
98 $condition = ['rel' => [Contact::SHARING, Contact::FRIEND], 'network' => Protocol::NATIVE_SUPPORT, 'uid' => $owner['uid'],
99 'self' => false, 'hidden' => false, 'archive' => false, 'pending' => false];
100 $count = DBA::count('contact', $condition);
102 $data = ['@context' => ActivityPub::CONTEXT];
103 $data['id'] = System::baseUrl() . '/following/' . $owner['nickname'];
104 $data['type'] = 'OrderedCollection';
105 $data['totalItems'] = $count;
107 // When we hide our friends we will only show the pure number but don't allow more.
108 $profile = Profile::getByUID($owner['uid']);
109 if (!empty($profile['hide-friends'])) {
114 $data['first'] = System::baseUrl() . '/following/' . $owner['nickname'] . '?page=1';
118 $contacts = DBA::select('contact', ['url'], $condition, ['limit' => [($page - 1) * 100, 100]]);
119 while ($contact = DBA::fetch($contacts)) {
120 $list[] = $contact['url'];
124 $data['next'] = System::baseUrl() . '/following/' . $owner['nickname'] . '?page=' . ($page + 1);
127 $data['partOf'] = System::baseUrl() . '/following/' . $owner['nickname'];
129 $data['orderedItems'] = $list;
136 * Public posts for the given owner
138 * @param array $owner Owner array
139 * @param integer $page Page numbe
141 * @return array of posts
143 public static function getOutbox($owner, $page = null)
145 $public_contact = Contact::getIdForURL($owner['url'], 0, true);
147 $condition = ['uid' => 0, 'contact-id' => $public_contact, 'author-id' => $public_contact,
148 'private' => false, 'gravity' => [GRAVITY_PARENT, GRAVITY_COMMENT],
149 'deleted' => false, 'visible' => true];
150 $count = DBA::count('item', $condition);
152 $data = ['@context' => ActivityPub::CONTEXT];
153 $data['id'] = System::baseUrl() . '/outbox/' . $owner['nickname'];
154 $data['type'] = 'OrderedCollection';
155 $data['totalItems'] = $count;
158 $data['first'] = System::baseUrl() . '/outbox/' . $owner['nickname'] . '?page=1';
162 $condition['parent-network'] = Protocol::NATIVE_SUPPORT;
164 $items = Item::select(['id'], $condition, ['limit' => [($page - 1) * 20, 20], 'order' => ['created' => true]]);
165 while ($item = Item::fetch($items)) {
166 $object = self::createObjectFromItemID($item['id']);
167 unset($object['@context']);
172 $data['next'] = System::baseUrl() . '/outbox/' . $owner['nickname'] . '?page=' . ($page + 1);
175 $data['partOf'] = System::baseUrl() . '/outbox/' . $owner['nickname'];
177 $data['orderedItems'] = $list;
184 * Return the ActivityPub profile of the given user
186 * @param integer $uid User ID
187 * @return array with profile data
189 public static function getProfile($uid)
191 $condition = ['uid' => $uid, 'blocked' => false, 'account_expired' => false,
192 'account_removed' => false, 'verified' => true];
193 $fields = ['guid', 'nickname', 'pubkey', 'account-type', 'page-flags'];
194 $user = DBA::selectFirst('user', $fields, $condition);
195 if (!DBA::isResult($user)) {
199 $fields = ['locality', 'region', 'country-name'];
200 $profile = DBA::selectFirst('profile', $fields, ['uid' => $uid, 'is-default' => true]);
201 if (!DBA::isResult($profile)) {
205 $fields = ['name', 'url', 'location', 'about', 'avatar', 'photo'];
206 $contact = DBA::selectFirst('contact', $fields, ['uid' => $uid, 'self' => true]);
207 if (!DBA::isResult($contact)) {
211 // On old installations and never changed contacts this might not be filled
212 if (empty($contact['avatar'])) {
213 $contact['avatar'] = $contact['photo'];
216 $data = ['@context' => ActivityPub::CONTEXT];
217 $data['id'] = $contact['url'];
218 $data['diaspora:guid'] = $user['guid'];
219 $data['type'] = ActivityPub::ACCOUNT_TYPES[$user['account-type']];
220 $data['following'] = System::baseUrl() . '/following/' . $user['nickname'];
221 $data['followers'] = System::baseUrl() . '/followers/' . $user['nickname'];
222 $data['inbox'] = System::baseUrl() . '/inbox/' . $user['nickname'];
223 $data['outbox'] = System::baseUrl() . '/outbox/' . $user['nickname'];
224 $data['preferredUsername'] = $user['nickname'];
225 $data['name'] = $contact['name'];
226 $data['vcard:hasAddress'] = ['@type' => 'vcard:Home', 'vcard:country-name' => $profile['country-name'],
227 'vcard:region' => $profile['region'], 'vcard:locality' => $profile['locality']];
228 $data['summary'] = $contact['about'];
229 $data['url'] = $contact['url'];
230 $data['manuallyApprovesFollowers'] = in_array($user['page-flags'], [Contact::PAGE_NORMAL, Contact::PAGE_PRVGROUP]);
231 $data['publicKey'] = ['id' => $contact['url'] . '#main-key',
232 'owner' => $contact['url'],
233 'publicKeyPem' => $user['pubkey']];
234 $data['endpoints'] = ['sharedInbox' => System::baseUrl() . '/inbox'];
235 $data['icon'] = ['type' => 'Image',
236 'url' => $contact['avatar']];
238 // tags: https://kitty.town/@inmysocks/100656097926961126.json
243 * Returns an array with permissions of a given item array
247 * @return array with permissions
249 private static function fetchPermissionBlockFromConversation($item)
251 if (empty($item['thr-parent'])) {
255 $condition = ['item-uri' => $item['thr-parent'], 'protocol' => Conversation::PARCEL_ACTIVITYPUB];
256 $conversation = DBA::selectFirst('conversation', ['source'], $condition);
257 if (!DBA::isResult($conversation)) {
261 $activity = json_decode($conversation['source'], true);
263 $actor = JsonLD::fetchElement($activity, 'actor', 'id');
264 $profile = APContact::getByURL($actor);
266 $item_profile = APContact::getByURL($item['author-link']);
267 $exclude[] = $item['author-link'];
269 if ($item['gravity'] == GRAVITY_PARENT) {
270 $exclude[] = $item['owner-link'];
273 $permissions['to'][] = $actor;
275 foreach (['to', 'cc', 'bto', 'bcc'] as $element) {
276 if (empty($activity[$element])) {
279 if (is_string($activity[$element])) {
280 $activity[$element] = [$activity[$element]];
283 foreach ($activity[$element] as $receiver) {
284 if ($receiver == $profile['followers'] && !empty($item_profile['followers'])) {
285 $permissions[$element][] = $item_profile['followers'];
286 } elseif (!in_array($receiver, $exclude)) {
287 $permissions[$element][] = $receiver;
295 * Creates an array of permissions from an item thread
298 * @param boolean $blindcopy
300 * @return array with permission data
302 private static function createPermissionBlockForItem($item, $blindcopy)
304 // Will be activated in a later step
305 // $networks = [Protocol::ACTIVITYPUB, Protocol::DFRN, Protocol::DIASPORA, Protocol::OSTATUS];
307 // For now only send to these contacts:
308 $networks = [Protocol::ACTIVITYPUB, Protocol::OSTATUS];
310 $data = ['to' => [], 'cc' => [], 'bcc' => []];
312 $actor_profile = APContact::getByURL($item['author-link']);
314 $terms = Term::tagArrayFromItemId($item['id'], TERM_MENTION);
316 if (!$item['private']) {
317 $data = array_merge($data, self::fetchPermissionBlockFromConversation($item));
319 $data['to'][] = ActivityPub::PUBLIC_COLLECTION;
320 if (!empty($actor_profile['followers'])) {
321 $data['cc'][] = $actor_profile['followers'];
324 foreach ($terms as $term) {
325 $profile = APContact::getByURL($term['url'], false);
326 if (!empty($profile)) {
327 $data['to'][] = $profile['url'];
331 $receiver_list = Item::enumeratePermissions($item);
335 foreach ($terms as $term) {
336 $cid = Contact::getIdForURL($term['url'], $item['uid']);
337 if (!empty($cid) && in_array($cid, $receiver_list)) {
338 $contact = DBA::selectFirst('contact', ['url'], ['id' => $cid, 'network' => $networks]);
339 if (DBA::isResult($contact) && !empty($profile = APContact::getByURL($contact['url'], false))) {
340 $data['to'][] = $profile['url'];
345 foreach ($receiver_list as $receiver) {
346 $contact = DBA::selectFirst('contact', ['url'], ['id' => $receiver, 'network' => $networks]);
347 if (DBA::isResult($contact) && !empty($profile = APContact::getByURL($contact['url'], false))) {
348 // BCC is currently deactivated, due to Pleroma and Mastodon not reacting like expected
349 // $data['bcc'][] = $profile['url'];
350 $data['cc'][] = $profile['url'];
355 $parents = Item::select(['id', 'author-link', 'owner-link', 'gravity', 'uri'], ['parent' => $item['parent']]);
356 while ($parent = Item::fetch($parents)) {
357 // Don't include data from future posts
358 if ($parent['id'] >= $item['id']) {
362 $profile = APContact::getByURL($parent['author-link'], false);
363 if (!empty($profile)) {
364 if ($parent['uri'] == $item['thr-parent']) {
365 $data['to'][] = $profile['url'];
367 $data['cc'][] = $profile['url'];
371 if ($item['gravity'] != GRAVITY_PARENT) {
375 $profile = APContact::getByURL($parent['owner-link'], false);
376 if (!empty($profile)) {
377 $data['cc'][] = $profile['url'];
380 DBA::close($parents);
382 $data['to'] = array_unique($data['to']);
383 $data['cc'] = array_unique($data['cc']);
384 $data['bcc'] = array_unique($data['bcc']);
386 if (($key = array_search($item['author-link'], $data['to'])) !== false) {
387 unset($data['to'][$key]);
390 if (($key = array_search($item['author-link'], $data['cc'])) !== false) {
391 unset($data['cc'][$key]);
394 if (($key = array_search($item['author-link'], $data['bcc'])) !== false) {
395 unset($data['bcc'][$key]);
398 foreach ($data['to'] as $to) {
399 if (($key = array_search($to, $data['cc'])) !== false) {
400 unset($data['cc'][$key]);
403 if (($key = array_search($to, $data['bcc'])) !== false) {
404 unset($data['bcc'][$key]);
408 foreach ($data['cc'] as $cc) {
409 if (($key = array_search($cc, $data['bcc'])) !== false) {
410 unset($data['bcc'][$key]);
414 $receivers = ['to' => array_values($data['to']), 'cc' => array_values($data['cc']), 'bcc' => array_values($data['bcc'])];
417 unset($receivers['bcc']);
424 * Fetches a list of inboxes of followers of a given user
426 * @param integer $uid User ID
427 * @param boolean $personal fetch personal inboxes
429 * @return array of follower inboxes
431 public static function fetchTargetInboxesforUser($uid, $personal = false)
435 // Will be activated in a later step
436 // $networks = [Protocol::ACTIVITYPUB, Protocol::DFRN, Protocol::DIASPORA, Protocol::OSTATUS];
438 // For now only send to these contacts:
439 $networks = [Protocol::ACTIVITYPUB, Protocol::OSTATUS];
441 $condition = ['uid' => $uid, 'network' => $networks, 'archive' => false, 'pending' => false];
444 $condition['rel'] = [Contact::FOLLOWER, Contact::FRIEND];
447 $contacts = DBA::select('contact', ['url'], $condition);
448 while ($contact = DBA::fetch($contacts)) {
449 $profile = APContact::getByURL($contact['url'], false);
450 if (!empty($profile)) {
451 if (empty($profile['sharedinbox']) || $personal) {
452 $target = $profile['inbox'];
454 $target = $profile['sharedinbox'];
456 $inboxes[$target] = $target;
459 DBA::close($contacts);
465 * Fetches an array of inboxes for the given item and user
468 * @param integer $uid User ID
469 * @param boolean $personal fetch personal inboxes
471 * @return array with inboxes
473 public static function fetchTargetInboxes($item, $uid, $personal = false)
475 $permissions = self::createPermissionBlockForItem($item, true);
476 if (empty($permissions)) {
482 if ($item['gravity'] == GRAVITY_ACTIVITY) {
483 $item_profile = APContact::getByURL($item['author-link'], false);
485 $item_profile = APContact::getByURL($item['owner-link'], false);
488 foreach (['to', 'cc', 'bto', 'bcc'] as $element) {
489 if (empty($permissions[$element])) {
493 $blindcopy = in_array($element, ['bto', 'bcc']);
495 foreach ($permissions[$element] as $receiver) {
496 if ($receiver == $item_profile['followers']) {
497 $inboxes = array_merge($inboxes, self::fetchTargetInboxesforUser($uid, $personal));
499 $profile = APContact::getByURL($receiver, false);
500 if (!empty($profile)) {
501 if (empty($profile['sharedinbox']) || $personal || $blindcopy) {
502 $target = $profile['inbox'];
504 $target = $profile['sharedinbox'];
506 $inboxes[$target] = $target;
516 * Returns the activity type of a given item
520 * @return string with activity type
522 private static function getTypeOfItem($item)
524 if (!empty(Diaspora::isReshare($item['body'], false))) {
526 } elseif ($item['verb'] == ACTIVITY_POST) {
527 if ($item['created'] == $item['edited']) {
532 } elseif ($item['verb'] == ACTIVITY_LIKE) {
534 } elseif ($item['verb'] == ACTIVITY_DISLIKE) {
536 } elseif ($item['verb'] == ACTIVITY_ATTEND) {
538 } elseif ($item['verb'] == ACTIVITY_ATTENDNO) {
540 } elseif ($item['verb'] == ACTIVITY_ATTENDMAYBE) {
541 $type = 'TentativeAccept';
550 * Creates the activity or fetches it from the cache
552 * @param integer $item_id
553 * @param boolean $force Force new cache entry
555 * @return array with the activity
557 public static function createCachedActivityFromItem($item_id, $force = false)
559 $cachekey = 'APDelivery:createActivity:' . $item_id;
562 $data = Cache::get($cachekey);
563 if (!is_null($data)) {
568 $data = ActivityPub\Transmitter::createActivityFromItem($item_id);
570 Cache::set($cachekey, $data, Cache::QUARTER_HOUR);
575 * Creates an activity array for a given item id
577 * @param integer $item_id
578 * @param boolean $object_mode Is the activity item is used inside another object?
580 * @return array of activity
582 public static function createActivityFromItem($item_id, $object_mode = false)
584 $item = Item::selectFirst([], ['id' => $item_id, 'parent-network' => Protocol::NATIVE_SUPPORT]);
586 if (!DBA::isResult($item)) {
590 $condition = ['item-uri' => $item['uri'], 'protocol' => Conversation::PARCEL_ACTIVITYPUB];
591 $conversation = DBA::selectFirst('conversation', ['source'], $condition);
592 if (DBA::isResult($conversation)) {
593 $data = json_decode($conversation['source']);
599 $type = self::getTypeOfItem($item);
602 $data = ['@context' => ActivityPub::CONTEXT];
604 if ($item['deleted'] && ($item['gravity'] == GRAVITY_ACTIVITY)) {
606 } elseif ($item['deleted']) {
613 $data['id'] = $item['uri'] . '#' . $type;
614 $data['type'] = $type;
615 $data['actor'] = $item['owner-link'];
617 $data['published'] = DateTimeFormat::utc($item['created'] . '+00:00', DateTimeFormat::ATOM);
619 $data['instrument'] = ['type' => 'Service', 'name' => BaseObject::getApp()->getUserAgent()];
621 $data = array_merge($data, self::createPermissionBlockForItem($item, false));
623 if (in_array($data['type'], ['Create', 'Update', 'Delete'])) {
624 $data['object'] = self::createNote($item);
625 } elseif ($data['type'] == 'Announce') {
626 $data['object'] = self::createAnnounce($item);
627 } elseif ($data['type'] == 'Undo') {
628 $data['object'] = self::createActivityFromItem($item_id, true);
630 $data['diaspora:guid'] = $item['guid'];
631 if (!empty($item['signed_text'])) {
632 $data['diaspora:like'] = $item['signed_text'];
634 $data['object'] = $item['thr-parent'];
637 $owner = User::getOwnerDataById($item['uid']);
640 return LDSignature::sign($data, $owner);
645 /// @todo Create "conversation" entry
649 * Creates an object array for a given item id
651 * @param integer $item_id
653 * @return array with the object data
655 public static function createObjectFromItemID($item_id)
657 $item = Item::selectFirst([], ['id' => $item_id, 'parent-network' => Protocol::NATIVE_SUPPORT]);
659 if (!DBA::isResult($item)) {
663 $data = ['@context' => ActivityPub::CONTEXT];
664 $data = array_merge($data, self::createNote($item));
670 * Creates a location entry for a given item array
674 * @return array with location array
676 private static function createLocation($item)
678 $location = ['type' => 'Place'];
680 if (!empty($item['location'])) {
681 $location['name'] = $item['location'];
686 if (empty($item['coord'])) {
687 $coord = Map::getCoordinates($item['location']);
689 $coords = explode(' ', $item['coord']);
690 if (count($coords) == 2) {
691 $coord = ['lat' => $coords[0], 'lon' => $coords[1]];
695 if (!empty($coord['lat']) && !empty($coord['lon'])) {
696 $location['latitude'] = $coord['lat'];
697 $location['longitude'] = $coord['lon'];
704 * Returns a tag array for a given item array
708 * @return array of tags
710 private static function createTagList($item)
714 $terms = Term::tagArrayFromItemId($item['id']);
715 foreach ($terms as $term) {
716 if ($term['type'] == TERM_HASHTAG) {
717 $tags[] = ['type' => 'Hashtag', 'href' => $term['url'], 'name' => '#' . $term['term']];
718 } elseif ($term['type'] == TERM_MENTION) {
719 $contact = Contact::getDetailsByURL($term['url']);
720 if (!empty($contact['addr'])) {
721 $mention = '@' . $contact['addr'];
723 $mention = '@' . $term['url'];
726 $tags[] = ['type' => 'Mention', 'href' => $term['url'], 'name' => $mention];
733 * Adds attachment data to the JSON document
735 * @param array $item Data of the item that is to be posted
736 * @param text $type Object type
738 * @return array with attachment data
740 private static function createAttachmentList($item, $type)
744 $arr = explode('[/attach],', $item['attach']);
746 foreach ($arr as $r) {
748 $cnt = preg_match('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"|', $r, $matches);
750 $attributes = ['type' => 'Document',
751 'mediaType' => $matches[3],
752 'url' => $matches[1],
755 if (trim($matches[4]) != '') {
756 $attributes['name'] = trim($matches[4]);
759 $attachments[] = $attributes;
764 if ($type != 'Note') {
768 // Simplify image codes
769 $body = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $item['body']);
771 // Grab all pictures and create attachments out of them
772 if (preg_match_all("/\[img\]([^\[\]]*)\[\/img\]/Usi", $body, $pictures)) {
773 foreach ($pictures[1] as $picture) {
774 $imgdata = Image::getInfoFromURL($picture);
776 $attachments[] = ['type' => 'Document',
777 'mediaType' => $imgdata['mime'],
788 * @brief Callback function to replace a Friendica style mention in a mention that is used on AP
790 * @param array $match Matching values for the callback
791 * @return string Replaced mention
793 private static function mentionCallback($match)
795 if (empty($match[1])) {
799 $data = Contact::getDetailsByURL($match[1]);
800 if (empty($data) || empty($data['nick'])) {
804 return '@[url=' . $data['url'] . ']' . $data['nick'] . '[/url]';
808 * Remove image elements and replaces them with links to the image
810 * @param string $body
812 * @return string with replaced elements
814 private static function removePictures($body)
816 // Simplify image codes
817 $body = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $body);
819 $body = preg_replace("/\[url=([^\[\]]*)\]\[img\](.*)\[\/img\]\[\/url\]/Usi", '[url]$1[/url]', $body);
820 $body = preg_replace("/\[img\]([^\[\]]*)\[\/img\]/Usi", '[url]$1[/url]', $body);
826 * Fetches the "context" value for a givem item array from the "conversation" table
830 * @return string with context url
832 private static function fetchContextURLForItem($item)
834 $conversation = DBA::selectFirst('conversation', ['conversation-href', 'conversation-uri'], ['item-uri' => $item['parent-uri']]);
835 if (DBA::isResult($conversation) && !empty($conversation['conversation-href'])) {
836 $context_uri = $conversation['conversation-href'];
837 } elseif (DBA::isResult($conversation) && !empty($conversation['conversation-uri'])) {
838 $context_uri = $conversation['conversation-uri'];
840 $context_uri = $item['parent-uri'] . '#context';
846 * Returns if the post contains sensitive content ("nsfw")
848 * @param integer $item_id
852 private static function isSensitive($item_id)
854 $condition = ['otype' => TERM_OBJ_POST, 'oid' => $item_id, 'type' => TERM_HASHTAG, 'term' => 'nsfw'];
855 return DBA::exists('term', $condition);
863 * @return array with the event data
865 public static function createEvent($item)
868 $event['name'] = $item['event-summary'];
869 $event['content'] = BBCode::convert($item['event-desc'], false, 7);
870 $event['startTime'] = DateTimeFormat::utc($item['event-start'] . '+00:00', DateTimeFormat::ATOM);
872 if (!$item['event-nofinish']) {
873 $event['endTime'] = DateTimeFormat::utc($item['event-finish'] . '+00:00', DateTimeFormat::ATOM);
876 if (!empty($item['event-location'])) {
877 $item['location'] = $item['event-location'];
878 $event['location'] = self::createLocation($item);
885 * Creates a note/article object array
889 * @return array with the object data
891 public static function createNote($item)
893 if ($item['event-type'] == 'event') {
895 } elseif (!empty($item['title'])) {
901 if ($item['deleted']) {
906 $data['id'] = $item['uri'];
907 $data['type'] = $type;
909 if ($item['deleted']) {
913 $data['summary'] = null; // Ignore by now
915 if ($item['uri'] != $item['thr-parent']) {
916 $data['inReplyTo'] = $item['thr-parent'];
918 $data['inReplyTo'] = null;
921 $data['diaspora:guid'] = $item['guid'];
922 $data['published'] = DateTimeFormat::utc($item['created'] . '+00:00', DateTimeFormat::ATOM);
924 if ($item['created'] != $item['edited']) {
925 $data['updated'] = DateTimeFormat::utc($item['edited'] . '+00:00', DateTimeFormat::ATOM);
928 $data['url'] = $item['plink'];
929 $data['attributedTo'] = $item['author-link'];
930 $data['sensitive'] = self::isSensitive($item['id']);
931 $data['context'] = self::fetchContextURLForItem($item);
933 if (!empty($item['title'])) {
934 $data['name'] = BBCode::toPlaintext($item['title'], false);
937 $body = $item['body'];
939 if ($type == 'Note') {
940 $body = self::removePictures($body);
943 if ($type == 'Event') {
944 $data = array_merge($data, self::createEvent($item));
946 $regexp = "/[@!]\[url\=([^\[\]]*)\].*?\[\/url\]/ism";
947 $body = preg_replace_callback($regexp, ['self', 'mentionCallback'], $body);
949 $data['content'] = BBCode::convert($body, false, 7);
952 $data['source'] = ['content' => $item['body'], 'mediaType' => "text/bbcode"];
954 if (!empty($item['signed_text']) && ($item['uri'] != $item['thr-parent'])) {
955 $data['diaspora:comment'] = $item['signed_text'];
958 $data['attachment'] = self::createAttachmentList($item, $type);
959 $data['tag'] = self::createTagList($item);
961 if (empty($data['location']) && (!empty($item['coord']) || !empty($item['location']))) {
962 $data['location'] = self::createLocation($item);
965 if (!empty($item['app'])) {
966 $data['generator'] = ['type' => 'Application', 'name' => $item['app']];
969 $data = array_merge($data, self::createPermissionBlockForItem($item, false));
975 * Creates an announce object entry
979 * @return string with announced object url
981 public static function createAnnounce($item)
983 $announce = api_share_as_retweet($item);
984 if (empty($announce['plink'])) {
985 return self::createNote($item);
988 return $announce['plink'];
992 * Transmits a contact suggestion to a given inbox
994 * @param integer $uid User ID
995 * @param string $inbox Target inbox
996 * @param integer $suggestion_id Suggestion ID
998 * @return boolean was the transmission successful?
1000 public static function sendContactSuggestion($uid, $inbox, $suggestion_id)
1002 $owner = User::getOwnerDataById($uid);
1003 $profile = APContact::getByURL($owner['url']);
1005 $suggestion = DBA::selectFirst('fsuggest', ['url', 'note', 'created'], ['id' => $suggestion_id]);
1007 $data = ['@context' => 'https://www.w3.org/ns/activitystreams',
1008 'id' => System::baseUrl() . '/activity/' . System::createGUID(),
1009 'type' => 'Announce',
1010 'actor' => $owner['url'],
1011 'object' => $suggestion['url'],
1012 'content' => $suggestion['note'],
1013 'instrument' => ['type' => 'Service', 'name' => BaseObject::getApp()->getUserAgent()],
1014 'to' => [ActivityPub::PUBLIC_COLLECTION],
1017 $signed = LDSignature::sign($data, $owner);
1019 Logger::log('Deliver profile deletion for user ' . $uid . ' to ' . $inbox . ' via ActivityPub', LOGGER_DEBUG);
1020 return HTTPSignature::transmit($signed, $inbox, $uid);
1024 * Transmits a profile deletion to a given inbox
1026 * @param integer $uid User ID
1027 * @param string $inbox Target inbox
1029 * @return boolean was the transmission successful?
1031 public static function sendProfileDeletion($uid, $inbox)
1033 $owner = User::getOwnerDataById($uid);
1034 $profile = APContact::getByURL($owner['url']);
1036 $data = ['@context' => 'https://www.w3.org/ns/activitystreams',
1037 'id' => System::baseUrl() . '/activity/' . System::createGUID(),
1039 'actor' => $owner['url'],
1040 'object' => $owner['url'],
1041 'published' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
1042 'instrument' => ['type' => 'Service', 'name' => BaseObject::getApp()->getUserAgent()],
1043 'to' => [ActivityPub::PUBLIC_COLLECTION],
1046 $signed = LDSignature::sign($data, $owner);
1048 Logger::log('Deliver profile deletion for user ' . $uid . ' to ' . $inbox . ' via ActivityPub', LOGGER_DEBUG);
1049 return HTTPSignature::transmit($signed, $inbox, $uid);
1053 * Transmits a profile change to a given inbox
1055 * @param integer $uid User ID
1056 * @param string $inbox Target inbox
1058 * @return boolean was the transmission successful?
1060 public static function sendProfileUpdate($uid, $inbox)
1062 $owner = User::getOwnerDataById($uid);
1063 $profile = APContact::getByURL($owner['url']);
1065 $data = ['@context' => 'https://www.w3.org/ns/activitystreams',
1066 'id' => System::baseUrl() . '/activity/' . System::createGUID(),
1068 'actor' => $owner['url'],
1069 'object' => self::getProfile($uid),
1070 'published' => DateTimeFormat::utcNow(DateTimeFormat::ATOM),
1071 'instrument' => ['type' => 'Service', 'name' => BaseObject::getApp()->getUserAgent()],
1072 'to' => [$profile['followers']],
1075 $signed = LDSignature::sign($data, $owner);
1077 Logger::log('Deliver profile update for user ' . $uid . ' to ' . $inbox . ' via ActivityPub', LOGGER_DEBUG);
1078 return HTTPSignature::transmit($signed, $inbox, $uid);
1082 * Transmits a given activity to a target
1084 * @param array $activity
1085 * @param string $target Target profile
1086 * @param integer $uid User ID
1088 public static function sendActivity($activity, $target, $uid)
1090 $profile = APContact::getByURL($target);
1092 $owner = User::getOwnerDataById($uid);
1094 $data = ['@context' => 'https://www.w3.org/ns/activitystreams',
1095 'id' => System::baseUrl() . '/activity/' . System::createGUID(),
1096 'type' => $activity,
1097 'actor' => $owner['url'],
1098 'object' => $profile['url'],
1099 'instrument' => ['type' => 'Service', 'name' => BaseObject::getApp()->getUserAgent()],
1100 'to' => $profile['url']];
1102 Logger::log('Sending activity ' . $activity . ' to ' . $target . ' for user ' . $uid, LOGGER_DEBUG);
1104 $signed = LDSignature::sign($data, $owner);
1105 HTTPSignature::transmit($signed, $profile['inbox'], $uid);
1109 * Transmit a message that the contact request had been accepted
1111 * @param string $target Target profile
1113 * @param integer $uid User ID
1115 public static function sendContactAccept($target, $id, $uid)
1117 $profile = APContact::getByURL($target);
1119 $owner = User::getOwnerDataById($uid);
1120 $data = ['@context' => 'https://www.w3.org/ns/activitystreams',
1121 'id' => System::baseUrl() . '/activity/' . System::createGUID(),
1123 'actor' => $owner['url'],
1124 'object' => ['id' => $id, 'type' => 'Follow',
1125 'actor' => $profile['url'],
1126 'object' => $owner['url']],
1127 'instrument' => ['type' => 'Service', 'name' => BaseObject::getApp()->getUserAgent()],
1128 'to' => $profile['url']];
1130 Logger::log('Sending accept to ' . $target . ' for user ' . $uid . ' with id ' . $id, LOGGER_DEBUG);
1132 $signed = LDSignature::sign($data, $owner);
1133 HTTPSignature::transmit($signed, $profile['inbox'], $uid);
1137 * Reject a contact request or terminates the contact relation
1139 * @param string $target Target profile
1141 * @param integer $uid User ID
1143 public static function sendContactReject($target, $id, $uid)
1145 $profile = APContact::getByURL($target);
1147 $owner = User::getOwnerDataById($uid);
1148 $data = ['@context' => 'https://www.w3.org/ns/activitystreams',
1149 'id' => System::baseUrl() . '/activity/' . System::createGUID(),
1151 'actor' => $owner['url'],
1152 'object' => ['id' => $id, 'type' => 'Follow',
1153 'actor' => $profile['url'],
1154 'object' => $owner['url']],
1155 'instrument' => ['type' => 'Service', 'name' => BaseObject::getApp()->getUserAgent()],
1156 'to' => $profile['url']];
1158 Logger::log('Sending reject to ' . $target . ' for user ' . $uid . ' with id ' . $id, LOGGER_DEBUG);
1160 $signed = LDSignature::sign($data, $owner);
1161 HTTPSignature::transmit($signed, $profile['inbox'], $uid);
1165 * Transmits a message that we don't want to follow this contact anymore
1167 * @param string $target Target profile
1168 * @param integer $uid User ID
1170 public static function sendContactUndo($target, $uid)
1172 $profile = APContact::getByURL($target);
1174 $id = System::baseUrl() . '/activity/' . System::createGUID();
1176 $owner = User::getOwnerDataById($uid);
1177 $data = ['@context' => 'https://www.w3.org/ns/activitystreams',
1180 'actor' => $owner['url'],
1181 'object' => ['id' => $id, 'type' => 'Follow',
1182 'actor' => $owner['url'],
1183 'object' => $profile['url']],
1184 'instrument' => ['type' => 'Service', 'name' => BaseObject::getApp()->getUserAgent()],
1185 'to' => $profile['url']];
1187 Logger::log('Sending undo to ' . $target . ' for user ' . $uid . ' with id ' . $id, LOGGER_DEBUG);
1189 $signed = LDSignature::sign($data, $owner);
1190 HTTPSignature::transmit($signed, $profile['inbox'], $uid);