3 * @copyright Copyright (C) 2010-2021, the Friendica project
5 * @license GNU AGPL version 3 or any later version
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU Affero General Public License as
9 * published by the Free Software Foundation, either version 3 of the
10 * License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU Affero General Public License for more details.
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <https://www.gnu.org/licenses/>.
22 namespace Friendica\Model;
24 use Friendica\Content\Text\BBCode;
25 use Friendica\Content\Text\HTML;
26 use Friendica\Core\Hook;
27 use Friendica\Core\Logger;
28 use Friendica\Core\Protocol;
29 use Friendica\Core\Renderer;
30 use Friendica\Core\Session;
31 use Friendica\Core\System;
32 use Friendica\Model\Tag;
33 use Friendica\Core\Worker;
34 use Friendica\Database\DBA;
36 use Friendica\Model\Post;
37 use Friendica\Protocol\Activity;
38 use Friendica\Protocol\ActivityPub;
39 use Friendica\Protocol\Diaspora;
40 use Friendica\Util\DateTimeFormat;
41 use Friendica\Util\Map;
42 use Friendica\Util\Network;
43 use Friendica\Util\Strings;
44 use Friendica\Worker\Delivery;
45 use LanguageDetection\Language;
49 // Posting types, inspired by https://www.w3.org/TR/activitystreams-vocabulary/#object-types
56 const PT_DOCUMENT = 19;
58 const PT_PERSONAL_NOTE = 128;
60 // Posting reasons (Why had a post been stored for a user?)
67 const PR_FOLLOWER = 69;
68 const PR_ANNOUNCEMENT = 70;
69 const PR_COMMENT = 71;
73 const PR_FETCHED = 75;
75 // Field list that is used to display the items
76 const DISPLAY_FIELDLIST = [
77 'uid', 'id', 'parent', 'guid', 'network', 'gravity',
78 'uri-id', 'uri', 'thr-parent-id', 'thr-parent', 'parent-uri-id', 'parent-uri',
79 'commented', 'created', 'edited', 'received', 'verb', 'object-type', 'postopts', 'plink',
80 'wall', 'private', 'starred', 'origin', 'parent-origin', 'title', 'body', 'language',
81 'content-warning', 'location', 'coord', 'app', 'rendered-hash', 'rendered-html', 'object',
82 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid', 'mention',
83 'author-id', 'author-link', 'author-name', 'author-avatar', 'author-network',
84 'owner-id', 'owner-link', 'owner-name', 'owner-avatar', 'owner-network', 'owner-contact-type',
85 'causer-id', 'causer-link', 'causer-name', 'causer-avatar', 'causer-contact-type', 'causer-network',
86 'contact-id', 'contact-uid', 'contact-link', 'contact-name', 'contact-avatar',
87 'writable', 'self', 'cid', 'alias',
88 'event-created', 'event-edited', 'event-start', 'event-finish',
89 'event-summary', 'event-desc', 'event-location', 'event-type',
90 'event-nofinish', 'event-adjust', 'event-ignore', 'event-id',
91 'delivery_queue_count', 'delivery_queue_done', 'delivery_queue_failed'
94 // Field list that is used to deliver items via the protocols
95 const DELIVER_FIELDLIST = ['uid', 'id', 'parent', 'uri-id', 'uri', 'thr-parent', 'parent-uri', 'guid',
96 'parent-guid', 'received', 'created', 'edited', 'verb', 'object-type', 'object', 'target',
97 'private', 'title', 'body', 'raw-body', 'location', 'coord', 'app',
98 'inform', 'deleted', 'extid', 'post-type', 'post-reason', 'gravity',
99 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
100 'author-id', 'author-link', 'author-name', 'author-avatar', 'owner-id', 'owner-link', 'contact-uid',
101 'signed_text', 'network', 'wall', 'contact-id', 'plink', 'forum_mode', 'origin',
102 'thr-parent-id', 'parent-uri-id', 'postopts', 'pubmail',
103 'event-created', 'event-edited', 'event-start', 'event-finish',
104 'event-summary', 'event-desc', 'event-location', 'event-type',
105 'event-nofinish', 'event-adjust', 'event-ignore', 'event-id'];
107 // All fields in the item table
108 const ITEM_FIELDLIST = ['id', 'uid', 'parent', 'uri', 'parent-uri', 'thr-parent',
109 'guid', 'uri-id', 'parent-uri-id', 'thr-parent-id', 'vid',
110 'contact-id', 'wall', 'gravity', 'extid', 'psid',
111 'created', 'edited', 'commented', 'received', 'changed', 'verb',
112 'postopts', 'plink', 'resource-id', 'event-id', 'inform',
113 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid', 'post-type', 'post-reason',
114 'private', 'pubmail', 'visible', 'starred',
115 'unseen', 'deleted', 'origin', 'forum_mode', 'mention', 'global', 'network',
116 'title', 'content-warning', 'body', 'location', 'coord', 'app',
117 'rendered-hash', 'rendered-html', 'object-type', 'object', 'target-type', 'target',
118 'author-id', 'author-link', 'author-name', 'author-avatar', 'author-network',
119 'owner-id', 'owner-link', 'owner-name', 'owner-avatar', 'causer-id'];
121 // List of all verbs that don't need additional content data.
122 // Never reorder or remove entries from this list. Just add new ones at the end, if needed.
124 Activity::LIKE, Activity::DISLIKE,
125 Activity::ATTEND, Activity::ATTENDNO, Activity::ATTENDMAYBE,
134 * Update existing item entries
136 * @param array $fields The fields that are to be changed
137 * @param array $condition The condition for finding the item entries
139 * In the future we may have to change permissions as well.
140 * Then we had to add the user id as third parameter.
142 * A return value of "0" doesn't mean an error - but that 0 rows had been changed.
144 * @return integer|boolean number of affected rows - or "false" if there was an error
145 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
147 public static function update(array $fields, array $condition)
149 if (empty($condition) || empty($fields)) {
153 if (isset($fields['extid'])) {
154 $fields['external-id'] = ItemURI::getIdByURI($fields['extid']);
157 if (!empty($fields['verb'])) {
158 $fields['vid'] = Verb::getID($fields['verb']);
161 $rows = Post::update($fields, $condition);
162 if (is_bool($rows)) {
166 // We only need to call the line by line update for specific fields
167 if (empty($fields['body']) && empty($fields['file']) &&
168 empty($fields['attach']) && empty($fields['edited'])) {
172 Logger::info('Updating per single row method', ['fields' => $fields, 'condition' => $condition]);
174 $items = Post::select(['id', 'origin', 'uri-id', 'uid'], $condition);
178 while ($item = DBA::fetch($items)) {
179 if (!empty($fields['body'])) {
180 $content_fields = ['raw-body' => trim($fields['raw-body'] ?? $fields['body'])];
182 // Remove all media attachments from the body and store them in the post-media table
183 $content_fields['raw-body'] = Post\Media::insertFromBody($item['uri-id'], $content_fields['raw-body']);
184 $content_fields['raw-body'] = self::setHashtags($content_fields['raw-body']);
187 if (!empty($fields['file'])) {
188 Post\Category::storeTextByURIId($item['uri-id'], $item['uid'], $fields['file']);
191 if (!empty($fields['attach'])) {
192 Post\Media::insertFromAttachment($item['uri-id'], $fields['attach']);
195 // We only need to notfiy others when it is an original entry from us.
196 // Only call the notifier when the item has some content relevant change.
197 if ($item['origin'] && in_array('edited', array_keys($fields))) {
198 $notify_items[] = $item['id'];
204 foreach ($notify_items as $notify_item) {
205 $post = Post::selectFirst(['uri-id', 'uid'], ['id' => $notify_item]);
206 Worker::add(PRIORITY_HIGH, "Notifier", Delivery::POST, (int)$post['uri-id'], (int)$post['uid']);
213 * Delete an item and notify others about it - if it was ours
215 * @param array $condition The condition for finding the item entries
216 * @param integer $priority Priority for the notification
217 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
219 public static function markForDeletion($condition, $priority = PRIORITY_HIGH)
221 $items = Post::select(['id'], $condition);
222 while ($item = Post::fetch($items)) {
223 self::markForDeletionById($item['id'], $priority);
229 * Delete an item for an user and notify others about it - if it was ours
231 * @param array $condition The condition for finding the item entries
232 * @param integer $uid User who wants to delete this item
233 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
235 public static function deleteForUser($condition, $uid)
241 $items = Post::select(['id', 'uid', 'uri-id'], $condition);
242 while ($item = Post::fetch($items)) {
243 if (in_array($item['uid'], [$uid, 0])) {
244 Post\User::update($item['uri-id'], $uid, ['hidden' => true], true);
245 Post\ThreadUser::update($item['uri-id'], $uid, ['hidden' => true], true);
248 if ($item['uid'] == $uid) {
249 self::markForDeletionById($item['id'], PRIORITY_HIGH);
250 } elseif ($item['uid'] != 0) {
251 Logger::notice('Wrong ownership. Not deleting item', ['id' => $item['id']]);
258 * Mark an item for deletion, delete related data and notify others about it - if it was ours
260 * @param integer $item_id
261 * @param integer $priority Priority for the notification
263 * @return boolean success
264 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
266 public static function markForDeletionById($item_id, $priority = PRIORITY_HIGH)
268 Logger::info('Mark item for deletion by id', ['id' => $item_id, 'callstack' => System::callstack()]);
269 // locate item to be deleted
270 $fields = ['id', 'uri', 'uri-id', 'uid', 'parent', 'parent-uri-id', 'origin',
271 'deleted', 'resource-id', 'event-id',
272 'verb', 'object-type', 'object', 'target', 'contact-id', 'psid', 'gravity'];
273 $item = Post::selectFirst($fields, ['id' => $item_id]);
274 if (!DBA::isResult($item)) {
275 Logger::info('Item not found.', ['id' => $item_id]);
279 if ($item['deleted']) {
280 Logger::info('Item has already been marked for deletion.', ['id' => $item_id]);
284 $parent = Post::selectFirst(['origin'], ['id' => $item['parent']]);
285 if (!DBA::isResult($parent)) {
286 $parent = ['origin' => false];
289 // clean up categories and tags so they don't end up as orphans
290 Post\Category::deleteByURIId($item['uri-id'], $item['uid']);
293 * If item is a link to a photo resource, nuke all the associated photos
294 * (visitors will not have photo resources)
295 * This only applies to photos uploaded from the photos page. Photos inserted into a post do not
296 * generate a resource-id and therefore aren't intimately linked to the item.
298 /// @TODO: this should first check if photo is used elsewhere
299 if (strlen($item['resource-id'])) {
300 Photo::delete(['resource-id' => $item['resource-id'], 'uid' => $item['uid']]);
303 // If item is a link to an event, delete the event.
304 if (intval($item['event-id'])) {
305 Event::delete($item['event-id']);
308 // If item has attachments, drop them
309 $attachments = Post\Media::getByURIId($item['uri-id'], [Post\Media::DOCUMENT]);
310 foreach($attachments as $attachment) {
311 if (preg_match("|attach/(\d+)|", $attachment['url'], $matches)) {
312 Attach::delete(['id' => $matches[1], 'uid' => $item['uid']]);
316 // Set the item to "deleted"
317 $item_fields = ['deleted' => true, 'edited' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()];
318 Post::update($item_fields, ['id' => $item['id']]);
320 Post\Category::storeTextByURIId($item['uri-id'], $item['uid'], '');
322 if (!Post::exists(["`uri-id` = ? AND `uid` != 0 AND NOT `deleted`", $item['uri-id']])) {
323 self::markForDeletion(['uri-id' => $item['uri-id'], 'uid' => 0, 'deleted' => false], $priority);
326 Post\DeliveryData::delete($item['uri-id']);
328 // If it's the parent of a comment thread, kill all the kids
329 if ($item['gravity'] == GRAVITY_PARENT) {
330 self::markForDeletion(['parent' => $item['parent'], 'deleted' => false], $priority);
333 // Is it our comment and/or our thread?
334 if (($item['origin'] || $parent['origin']) && ($item['uid'] != 0)) {
335 // When we delete the original post we will delete all existing copies on the server as well
336 self::markForDeletion(['uri-id' => $item['uri-id'], 'deleted' => false], $priority);
338 // send the notification upstream/downstream
340 Worker::add(['priority' => $priority, 'dont_fork' => true], "Notifier", Delivery::DELETION, (int)$item['uri-id'], (int)$item['uid']);
342 } elseif ($item['uid'] != 0) {
343 Post\User::update($item['uri-id'], $item['uid'], ['hidden' => true]);
344 Post\ThreadUser::update($item['uri-id'], $item['uid'], ['hidden' => true]);
347 Logger::info('Item has been marked for deletion.', ['id' => $item_id]);
352 private static function guid($item, $notify)
354 if (!empty($item['guid'])) {
355 return Strings::escapeTags(trim($item['guid']));
359 // We have to avoid duplicates. So we create the GUID in form of a hash of the plink or uri.
360 // We add the hash of our own host because our host is the original creator of the post.
361 $prefix_host = DI::baseUrl()->getHostname();
365 // We are only storing the post so we create a GUID from the original hostname.
366 if (!empty($item['author-link'])) {
367 $parsed = parse_url($item['author-link']);
368 if (!empty($parsed['host'])) {
369 $prefix_host = $parsed['host'];
373 if (empty($prefix_host) && !empty($item['plink'])) {
374 $parsed = parse_url($item['plink']);
375 if (!empty($parsed['host'])) {
376 $prefix_host = $parsed['host'];
380 if (empty($prefix_host) && !empty($item['uri'])) {
381 $parsed = parse_url($item['uri']);
382 if (!empty($parsed['host'])) {
383 $prefix_host = $parsed['host'];
387 // Is it in the format data@host.tld? - Used for mail contacts
388 if (empty($prefix_host) && !empty($item['author-link']) && strstr($item['author-link'], '@')) {
389 $mailparts = explode('@', $item['author-link']);
390 $prefix_host = array_pop($mailparts);
394 if (!empty($item['plink'])) {
395 $guid = self::guidFromUri($item['plink'], $prefix_host);
396 } elseif (!empty($item['uri'])) {
397 $guid = self::guidFromUri($item['uri'], $prefix_host);
399 $guid = System::createUUID(hash('crc32', $prefix_host));
405 private static function contactId($item)
407 if (!empty($item['contact-id']) && DBA::exists('contact', ['self' => true, 'id' => $item['contact-id']])) {
408 return $item['contact-id'];
409 } elseif (($item['gravity'] == GRAVITY_PARENT) && !empty($item['uid']) && !empty($item['contact-id']) && Contact::isSharing($item['contact-id'], $item['uid'])) {
410 return $item['contact-id'];
411 } elseif (!empty($item['uid']) && !Contact::isSharing($item['author-id'], $item['uid'])) {
412 return $item['author-id'];
413 } elseif (!empty($item['contact-id'])) {
414 return $item['contact-id'];
416 $contact_id = Contact::getIdForURL($item['author-link'], $item['uid']);
417 if (!empty($contact_id)) {
421 return $item['author-id'];
425 * Write an item array into a spool file to be inserted later.
426 * This command is called whenever there are issues storing an item.
428 * @param array $item The item fields that are to be inserted
431 private static function spool($orig_item)
433 // Now we store the data in the spool directory
434 // We use "microtime" to keep the arrival order and "mt_rand" to avoid duplicates
435 $file = 'item-' . round(microtime(true) * 10000) . '-' . mt_rand() . '.msg';
437 $spoolpath = get_spoolpath();
438 if ($spoolpath != "") {
439 $spool = $spoolpath . '/' . $file;
441 file_put_contents($spool, json_encode($orig_item));
442 Logger::warning("Item wasn't stored - Item was spooled into file", ['file' => $file]);
447 * Check if the item array is a duplicate
450 * @return boolean is it a duplicate?
452 private static function isDuplicate(array $item)
454 // Checking if there is already an item with the same guid
455 $condition = ['guid' => $item['guid'], 'network' => $item['network'], 'uid' => $item['uid']];
456 if (Post::exists($condition)) {
457 Logger::notice('Found already existing item', [
458 'guid' => $item['guid'],
459 'uid' => $item['uid'],
460 'network' => $item['network']
465 $condition = ['uri-id' => $item['uri-id'], 'uid' => $item['uid'],
466 'network' => [$item['network'], Protocol::DFRN]];
467 if (Post::exists($condition)) {
468 Logger::notice('duplicated item with the same uri found.', $item);
472 // On Friendica and Diaspora the GUID is unique
473 if (in_array($item['network'], [Protocol::DFRN, Protocol::DIASPORA])) {
474 $condition = ['guid' => $item['guid'], 'uid' => $item['uid']];
475 if (Post::exists($condition)) {
476 Logger::notice('duplicated item with the same guid found.', $item);
479 } elseif ($item['network'] == Protocol::OSTATUS) {
480 // Check for an existing post with the same content. There seems to be a problem with OStatus.
481 $condition = ["`body` = ? AND `network` = ? AND `created` = ? AND `contact-id` = ? AND `uid` = ?",
482 $item['body'], $item['network'], $item['created'], $item['contact-id'], $item['uid']];
483 if (Post::exists($condition)) {
484 Logger::notice('duplicated item with the same body found.', $item);
490 * Check for already added items.
491 * There is a timing issue here that sometimes creates double postings.
492 * An unique index would help - but the limitations of MySQL (maximum size of index values) prevent this.
494 if (($item['uid'] == 0) && Post::exists(['uri-id' => $item['uri-id'], 'uid' => 0])) {
495 Logger::notice('Global item already stored.', ['uri-id' => $item['uri-id'], 'network' => $item['network']]);
503 * Check if the item array is valid
506 * @return boolean item is valid
508 public static function isValid(array $item)
510 // When there is no content then we don't post it
511 if ($item['body'] . $item['title'] == '') {
512 Logger::notice('No body, no title.');
516 if (!empty($item['uid'])) {
517 $owner = User::getOwnerDataById($item['uid'], false);
519 Logger::notice('Missing item user owner data', ['uid' => $item['uid']]);
523 if ($owner['account_expired'] || $owner['account_removed']) {
524 Logger::notice('Item user has been deleted/expired/removed', ['uid' => $item['uid'], 'deleted' => $owner['deleted'], 'account_expired' => $owner['account_expired'], 'account_removed' => $owner['account_removed']]);
529 if (!empty($item['author-id']) && Contact::isBlocked($item['author-id'])) {
530 Logger::notice('Author is blocked node-wide', ['author-link' => $item['author-link'], 'item-uri' => $item['uri']]);
534 if (!empty($item['author-link']) && Network::isUrlBlocked($item['author-link'])) {
535 Logger::notice('Author server is blocked', ['author-link' => $item['author-link'], 'item-uri' => $item['uri']]);
539 if (!empty($item['owner-id']) && Contact::isBlocked($item['owner-id'])) {
540 Logger::notice('Owner is blocked node-wide', ['owner-link' => $item['owner-link'], 'item-uri' => $item['uri']]);
544 if (!empty($item['owner-link']) && Network::isUrlBlocked($item['owner-link'])) {
545 Logger::notice('Owner server is blocked', ['owner-link' => $item['owner-link'], 'item-uri' => $item['uri']]);
549 if (!empty($item['uid']) && !self::isAllowedByUser($item, $item['uid'])) {
553 if ($item['verb'] == Activity::FOLLOW) {
554 if (!$item['origin'] && ($item['author-id'] == Contact::getPublicIdByUserId($item['uid']))) {
555 // Our own follow request can be relayed to us. We don't store it to avoid notification chaos.
556 Logger::info("Follow: Don't store not origin follow request", ['parent-uri' => $item['parent-uri']]);
560 $condition = ['verb' => Activity::FOLLOW, 'uid' => $item['uid'],
561 'parent-uri' => $item['parent-uri'], 'author-id' => $item['author-id']];
562 if (Post::exists($condition)) {
563 // It happens that we receive multiple follow requests by the same author - we only store one.
564 Logger::info('Follow: Found existing follow request from author', ['author-id' => $item['author-id'], 'parent-uri' => $item['parent-uri']]);
573 * Check if the item array is too old
576 * @return boolean item is too old
578 public static function isTooOld(array $item)
580 // check for create date and expire time
581 $expire_interval = DI::config()->get('system', 'dbclean-expire-days', 0);
583 $user = DBA::selectFirst('user', ['expire'], ['uid' => $item['uid']]);
584 if (DBA::isResult($user) && ($user['expire'] > 0) && (($user['expire'] < $expire_interval) || ($expire_interval == 0))) {
585 $expire_interval = $user['expire'];
588 if (($expire_interval > 0) && !empty($item['created'])) {
589 $expire_date = time() - ($expire_interval * 86400);
590 $created_date = strtotime($item['created']);
591 if ($created_date < $expire_date) {
592 Logger::notice('Item created before expiration interval.', [
593 'created' => date('c', $created_date),
594 'expired' => date('c', $expire_date),
605 * Return the id of the given item array if it has been stored before
608 * @return integer item id
610 private static function getDuplicateID(array $item)
612 if (empty($item['network']) || in_array($item['network'], Protocol::FEDERATED)) {
613 $condition = ["`uri-id` = ? AND `uid` = ? AND `network` IN (?, ?, ?, ?)",
614 $item['uri-id'], $item['uid'],
615 Protocol::ACTIVITYPUB, Protocol::DIASPORA, Protocol::DFRN, Protocol::OSTATUS];
616 $existing = Post::selectFirst(['id', 'network'], $condition);
617 if (DBA::isResult($existing)) {
618 // We only log the entries with a different user id than 0. Otherwise we would have too many false positives
619 if ($item['uid'] != 0) {
620 Logger::notice('Item already existed for user', [
621 'uri-id' => $item['uri-id'],
622 'uid' => $item['uid'],
623 'network' => $item['network'],
624 'existing_id' => $existing["id"],
625 'existing_network' => $existing["network"]
629 return $existing["id"];
636 * Fetch top-level parent data for the given item array
639 * @return array item array with parent data
642 private static function getTopLevelParent(array $item)
644 $fields = ['uid', 'uri', 'parent-uri', 'id', 'deleted',
645 'uri-id', 'parent-uri-id',
646 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
647 'wall', 'private', 'forum_mode', 'origin', 'author-id'];
648 $condition = ['uri-id' => $item['thr-parent-id'], 'uid' => $item['uid']];
649 $params = ['order' => ['id' => false]];
650 $parent = Post::selectFirst($fields, $condition, $params);
652 if (!DBA::isResult($parent)) {
653 Logger::notice('item parent was not found - ignoring item', ['thr-parent-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
657 if ($parent['uri-id'] == $parent['parent-uri-id']) {
661 $condition = ['uri-id' => $parent['parent-uri-id'],
662 'parent-uri-id' => $parent['parent-uri-id'],
663 'uid' => $parent['uid']];
664 $params = ['order' => ['id' => false]];
665 $toplevel_parent = Post::selectFirst($fields, $condition, $params);
666 if (!DBA::isResult($toplevel_parent)) {
667 Logger::notice('item top level parent was not found - ignoring item', ['parent-uri-id' => $parent['parent-uri-id'], 'uid' => $parent['uid']]);
671 return $toplevel_parent;
675 * Get the gravity for the given item array
678 * @return integer gravity
680 private static function getGravity(array $item)
682 $activity = DI::activity();
684 if (isset($item['gravity'])) {
685 return intval($item['gravity']);
686 } elseif ($item['parent-uri-id'] === $item['uri-id']) {
687 return GRAVITY_PARENT;
688 } elseif ($activity->match($item['verb'], Activity::POST)) {
689 return GRAVITY_COMMENT;
690 } elseif ($activity->match($item['verb'], Activity::FOLLOW)) {
691 return GRAVITY_ACTIVITY;
692 } elseif ($activity->match($item['verb'], Activity::ANNOUNCE)) {
693 return GRAVITY_ACTIVITY;
695 Logger::info('Unknown gravity for verb', ['verb' => $item['verb']]);
696 return GRAVITY_UNKNOWN; // Should not happen
699 public static function insert($item, $notify = false, $dontcache = false)
703 $priority = PRIORITY_HIGH;
705 // If it is a posting where users should get notifications, then define it as wall posting
709 $item['network'] = Protocol::DFRN;
710 $item['protocol'] = Conversation::PARCEL_DIRECT;
711 $item['direction'] = Conversation::PUSH;
713 if (in_array($notify, PRIORITIES)) {
717 $item['network'] = trim(($item['network'] ?? '') ?: Protocol::PHANTOM);
720 $uid = intval($item['uid']);
722 $item['guid'] = self::guid($item, $notify);
723 $item['uri'] = substr(trim($item['uri'] ?? '') ?: self::newURI($item['uid'], $item['guid']), 0, 255);
726 $item['uri-id'] = ItemURI::insert(['uri' => $item['uri'], 'guid' => $item['guid']]);
728 // Backward compatibility: parent-uri used to be the direct parent uri.
729 // If it is provided without a thr-parent, it probably is the old behavior.
730 $item['thr-parent'] = trim($item['thr-parent'] ?? $item['parent-uri'] ?? $item['uri']);
731 $item['parent-uri'] = $item['thr-parent'];
733 $item['thr-parent-id'] = $item['parent-uri-id'] = ItemURI::getIdByURI($item['thr-parent']);
735 // Store conversation data
736 $item = Conversation::insert($item);
739 * Do we already have this item?
740 * We have to check several networks since Friendica posts could be repeated
741 * via OStatus (maybe Diasporsa as well)
743 $duplicate = self::getDuplicateID($item);
748 // Additional duplicate checks
749 /// @todo Check why the first duplication check returns the item number and the second a 0
750 if (self::isDuplicate($item)) {
754 if (!isset($item['post-type'])) {
755 $item['post-type'] = empty($item['title']) ? self::PT_NOTE : self::PT_ARTICLE;
758 $item['wall'] = intval($item['wall'] ?? 0);
759 $item['extid'] = trim($item['extid'] ?? '');
760 $item['author-name'] = trim($item['author-name'] ?? '');
761 $item['author-link'] = trim($item['author-link'] ?? '');
762 $item['author-avatar'] = trim($item['author-avatar'] ?? '');
763 $item['owner-name'] = trim($item['owner-name'] ?? '');
764 $item['owner-link'] = trim($item['owner-link'] ?? '');
765 $item['owner-avatar'] = trim($item['owner-avatar'] ?? '');
766 $item['received'] = (isset($item['received']) ? DateTimeFormat::utc($item['received']) : DateTimeFormat::utcNow());
767 $item['created'] = (isset($item['created']) ? DateTimeFormat::utc($item['created']) : $item['received']);
768 $item['edited'] = (isset($item['edited']) ? DateTimeFormat::utc($item['edited']) : $item['created']);
769 $item['changed'] = (isset($item['changed']) ? DateTimeFormat::utc($item['changed']) : $item['created']);
770 $item['commented'] = (isset($item['commented']) ? DateTimeFormat::utc($item['commented']) : $item['created']);
771 $item['title'] = substr(trim($item['title'] ?? ''), 0, 255);
772 $item['location'] = trim($item['location'] ?? '');
773 $item['coord'] = trim($item['coord'] ?? '');
774 $item['visible'] = (isset($item['visible']) ? intval($item['visible']) : 1);
775 $item['deleted'] = 0;
776 $item['verb'] = trim($item['verb'] ?? '');
777 $item['object-type'] = trim($item['object-type'] ?? '');
778 $item['object'] = trim($item['object'] ?? '');
779 $item['target-type'] = trim($item['target-type'] ?? '');
780 $item['target'] = trim($item['target'] ?? '');
781 $item['plink'] = substr(trim($item['plink'] ?? ''), 0, 255);
782 $item['allow_cid'] = trim($item['allow_cid'] ?? '');
783 $item['allow_gid'] = trim($item['allow_gid'] ?? '');
784 $item['deny_cid'] = trim($item['deny_cid'] ?? '');
785 $item['deny_gid'] = trim($item['deny_gid'] ?? '');
786 $item['private'] = intval($item['private'] ?? self::PUBLIC);
787 $item['body'] = trim($item['body'] ?? '');
788 $item['raw-body'] = trim($item['raw-body'] ?? $item['body']);
789 $item['app'] = trim($item['app'] ?? '');
790 $item['origin'] = intval($item['origin'] ?? 0);
791 $item['postopts'] = trim($item['postopts'] ?? '');
792 $item['resource-id'] = trim($item['resource-id'] ?? '');
793 $item['event-id'] = intval($item['event-id'] ?? 0);
794 $item['inform'] = trim($item['inform'] ?? '');
795 $item['file'] = trim($item['file'] ?? '');
797 // Items cannot be stored before they happen ...
798 if ($item['created'] > DateTimeFormat::utcNow()) {
799 $item['created'] = DateTimeFormat::utcNow();
802 // We haven't invented time travel by now.
803 if ($item['edited'] > DateTimeFormat::utcNow()) {
804 $item['edited'] = DateTimeFormat::utcNow();
807 $item['plink'] = ($item['plink'] ?? '') ?: DI::baseUrl() . '/display/' . urlencode($item['guid']);
809 $item['gravity'] = self::getGravity($item);
811 $item['language'] = self::getLanguage($item);
813 $default = ['url' => $item['author-link'], 'name' => $item['author-name'],
814 'photo' => $item['author-avatar'], 'network' => $item['network']];
815 $item['author-id'] = ($item['author-id'] ?? 0) ?: Contact::getIdForURL($item['author-link'], 0, null, $default);
817 $default = ['url' => $item['owner-link'], 'name' => $item['owner-name'],
818 'photo' => $item['owner-avatar'], 'network' => $item['network']];
819 $item['owner-id'] = ($item['owner-id'] ?? 0) ?: Contact::getIdForURL($item['owner-link'], 0, null, $default);
821 $actor = ($item['gravity'] == GRAVITY_PARENT) ? $item['owner-id'] : $item['author-id'];
822 if (!$item['origin'] && ($item['uid'] != 0) && Contact::isSharing($actor, $item['uid'])) {
823 $item['post-reason'] = self::PR_FOLLOWER;
826 // Ensure that there is an avatar cache
827 Contact::checkAvatarCache($item['author-id']);
828 Contact::checkAvatarCache($item['owner-id']);
830 // The contact-id should be set before "self::insert" was called - but there seems to be issues sometimes
831 $item["contact-id"] = self::contactId($item);
833 if (!empty($item['direction']) && in_array($item['direction'], [Conversation::PUSH, Conversation::RELAY]) &&
834 self::isTooOld($item)) {
835 Logger::info('Item is too old', ['item' => $item]);
839 if (!self::isValid($item)) {
843 if ($item['gravity'] !== GRAVITY_PARENT) {
844 $toplevel_parent = self::getTopLevelParent($item);
845 if (empty($toplevel_parent)) {
849 // If the thread originated from this node, we check the permission against the thread starter
850 $condition = ['uri-id' => $toplevel_parent['uri-id'], 'wall' => true];
851 $localTopLevelParent = Post::selectFirst(['uid'], $condition);
852 if (!empty($localTopLevelParent['uid']) && !self::isAllowedByUser($item, $localTopLevelParent['uid'])) {
856 $parent_id = $toplevel_parent['id'];
857 $item['parent-uri'] = $toplevel_parent['uri'];
858 $item['parent-uri-id'] = $toplevel_parent['uri-id'];
859 $item['deleted'] = $toplevel_parent['deleted'];
860 $item['allow_cid'] = $toplevel_parent['allow_cid'];
861 $item['allow_gid'] = $toplevel_parent['allow_gid'];
862 $item['deny_cid'] = $toplevel_parent['deny_cid'];
863 $item['deny_gid'] = $toplevel_parent['deny_gid'];
864 $parent_origin = $toplevel_parent['origin'];
866 // Don't federate received participation messages
867 if ($item['verb'] != Activity::FOLLOW) {
868 $item['wall'] = $toplevel_parent['wall'];
870 $item['wall'] = false;
871 // Participations are technical messages, so they are set to "seen" automatically
872 $item['unseen'] = false;
876 * If the parent is private, force privacy for the entire conversation
877 * This differs from the above settings as it subtly allows comments from
878 * email correspondents to be private even if the overall thread is not.
880 if ($toplevel_parent['private']) {
881 $item['private'] = $toplevel_parent['private'];
885 * Edge case. We host a public forum that was originally posted to privately.
886 * The original author commented, but as this is a comment, the permissions
887 * weren't fixed up so it will still show the comment as private unless we fix it here.
889 if ((intval($toplevel_parent['forum_mode']) == 1) && ($toplevel_parent['private'] != self::PUBLIC)) {
890 $item['private'] = self::PUBLIC;
893 // If its a post that originated here then tag the thread as "mention"
894 if ($item['origin'] && $item['uid']) {
895 DBA::update('post-thread-user', ['mention' => true], ['uri-id' => $item['parent-uri-id'], 'uid' => $item['uid']]);
896 Logger::info('tagged thread as mention', ['parent' => $parent_id, 'parent-uri-id' => $item['parent-uri-id'], 'uid' => $item['uid']]);
899 // Update the contact relations
900 Contact\Relation::store($toplevel_parent['author-id'], $item['author-id'], $item['created']);
903 $parent_origin = $item['origin'];
906 $item['parent-uri-id'] = ItemURI::getIdByURI($item['parent-uri']);
907 $item['thr-parent-id'] = ItemURI::getIdByURI($item['thr-parent']);
909 // Is this item available in the global items (with uid=0)?
910 if ($item["uid"] == 0) {
911 $item["global"] = true;
913 // Set the global flag on all items if this was a global item entry
914 Post::update(['global' => true], ['uri-id' => $item['uri-id']]);
916 $item['global'] = Post::exists(['uid' => 0, 'uri-id' => $item['uri-id']]);
920 if (!empty($item["allow_cid"] . $item["allow_gid"] . $item["deny_cid"] . $item["deny_gid"])) {
921 $item["private"] = self::PRIVATE;
925 $item['edit'] = false;
926 $item['parent'] = $parent_id;
927 Hook::callAll('post_local', $item);
929 Hook::callAll('post_remote', $item);
932 if (!empty($item['cancel'])) {
933 Logger::log('post cancelled by addon.');
937 if (empty($item['vid']) && !empty($item['verb'])) {
938 $item['vid'] = Verb::getID($item['verb']);
941 // Creates or assigns the permission set
942 $item['psid'] = PermissionSet::getIdFromACL(
950 if (!empty($item['extid'])) {
951 $item['external-id'] = ItemURI::getIdByURI($item['extid']);
954 if ($item['verb'] == Activity::ANNOUNCE) {
955 self::setOwnerforResharedItem($item);
958 // Remove all media attachments from the body and store them in the post-media table
959 $item['raw-body'] = Post\Media::insertFromBody($item['uri-id'], $item['raw-body']);
960 $item['raw-body'] = self::setHashtags($item['raw-body']);
962 // Check for hashtags in the body and repair or add hashtag links
963 $item['body'] = self::setHashtags($item['body']);
965 // Fill the cache field
966 self::putInCache($item);
968 if (stristr($item['verb'], Activity::POKE)) {
969 $notify_type = Delivery::POKE;
971 $notify_type = Delivery::POST;
974 // Filling item related side tables
975 if (!empty($item['attach'])) {
976 Post\Media::insertFromAttachment($item['uri-id'], $item['attach']);
979 if (empty($item['event-id'])) {
980 unset($item['event-id']);
983 if (empty($item['causer-id'])) {
984 unset($item['causer-id']);
987 Post::insert($item['uri-id'], $item);
989 if ($item['gravity'] == GRAVITY_PARENT) {
990 Post\Thread::insert($item['uri-id'], $item);
993 if (!in_array($item['verb'], self::ACTIVITIES)) {
994 Post\Content::insert($item['uri-id'], $item);
997 // Diaspora signature
998 if (!empty($item['diaspora_signed_text'])) {
999 DBA::replace('diaspora-interaction', ['uri-id' => $item['uri-id'], 'interaction' => $item['diaspora_signed_text']]);
1002 // Attached file links
1003 if (!empty($item['file'])) {
1004 Post\Category::storeTextByURIId($item['uri-id'], $item['uid'], $item['file']);
1007 // Delivery relevant data
1008 $delivery_data = Post\DeliveryData::extractFields($item);
1010 if (!empty($item['origin']) || !empty($item['wall']) || !empty($delivery_data['postopts']) || !empty($delivery_data['inform'])) {
1011 Post\DeliveryData::insert($item['uri-id'], $delivery_data);
1014 // Store tags from the body if this hadn't been handled previously in the protocol classes
1015 if (!Tag::existsForPost($item['uri-id'])) {
1016 Tag::storeFromBody($item['uri-id'], $item['body']);
1019 $condition = ['uri-id' => $item['uri-id'], 'uid' => $item['uid']];
1020 if (Post::exists($condition)) {
1021 Logger::notice('Item is already inserted - aborting', $condition);
1025 $post_user_id = Post\User::insert($item['uri-id'], $item['uid'], $item);
1026 if (!$post_user_id) {
1027 Logger::notice('Post-User is already inserted - aborting', ['uid' => $item['uid'], 'uri-id' => $item['uri-id']]);
1031 if ($item['gravity'] == GRAVITY_PARENT) {
1032 $item['post-user-id'] = $post_user_id;
1033 Post\ThreadUser::insert($item['uri-id'], $item['uid'], $item);
1036 Logger::notice('created item', ['post-id' => $post_user_id, 'uid' => $item['uid'], 'network' => $item['network'], 'uri-id' => $item['uri-id'], 'guid' => $item['guid']]);
1038 $posted_item = Post::selectFirst(self::ITEM_FIELDLIST, ['post-user-id' => $post_user_id]);
1039 if (!DBA::isResult($posted_item)) {
1040 // On failure store the data into a spool file so that the "SpoolPost" worker can try again later.
1041 Logger::warning('Could not store item. it will be spooled', ['id' => $post_user_id]);
1042 self::spool($orig_item);
1046 // update the commented timestamp on the parent
1047 if (DI::config()->get('system', 'like_no_comment')) {
1048 // Update when it is a comment
1049 $update_commented = in_array($posted_item['gravity'], [GRAVITY_PARENT, GRAVITY_COMMENT]);
1051 // Update when it isn't a follow or tag verb
1052 $update_commented = !in_array($posted_item['verb'], [Activity::FOLLOW, Activity::TAG]);
1055 if ($update_commented) {
1056 $fields = ['commented' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()];
1058 $fields = ['changed' => DateTimeFormat::utcNow()];
1061 Post::update($fields, ['uri-id' => $posted_item['parent-uri-id'], 'uid' => $posted_item['uid']]);
1063 // In that function we check if this is a forum post. Additionally we delete the item under certain circumstances
1064 if (self::tagDeliver($posted_item['uid'], $post_user_id)) {
1065 // Get the user information for the logging
1066 $user = User::getById($uid);
1068 Logger::notice('Item had been deleted', ['id' => $post_user_id, 'user' => $uid, 'account-type' => $user['account-type']]);
1074 Hook::callAll('post_local_end', $posted_item);
1076 Hook::callAll('post_remote_end', $posted_item);
1080 if ($posted_item['gravity'] === GRAVITY_PARENT) {
1081 self::addShadow($post_user_id);
1083 self::addShadowPost($post_user_id);
1086 self::updateContact($posted_item);
1088 Post\UserNotification::setNotification($posted_item['uri-id'], $posted_item['uid']);
1090 check_user_notification($posted_item['uri-id'], $posted_item['uid']);
1092 // Distribute items to users who subscribed to their tags
1093 self::distributeByTags($posted_item);
1095 // Automatically reshare the item if the "remote_self" option is selected
1096 self::autoReshare($posted_item);
1098 $transmit = $notify || ($posted_item['visible'] && ($parent_origin || $posted_item['origin']));
1101 // Don't relay participation messages
1102 if (($posted_item['verb'] == Activity::FOLLOW) &&
1103 (!$posted_item['origin'] || ($posted_item['author-id'] != Contact::getPublicIdByUserId($uid)))) {
1104 Logger::info('Participation messages will not be relayed', ['item' => $posted_item['id'], 'uri' => $posted_item['uri'], 'verb' => $posted_item['verb']]);
1110 Worker::add(['priority' => $priority, 'dont_fork' => true], 'Notifier', $notify_type, (int)$posted_item['uri-id'], (int)$posted_item['uid']);
1113 return $post_user_id;
1117 * Change the owner of a parent item if it had been shared by a forum
1119 * (public) forum posts in the new format consist of the regular post by the author
1120 * followed by an announce message sent from the forum account.
1121 * Changing the owner helps in grouping forum posts.
1123 * @param array $item
1126 private static function setOwnerforResharedItem(array $item)
1128 $parent = Post::selectFirst(['id', 'causer-id', 'owner-id', 'author-id', 'author-link', 'origin', 'post-reason'],
1129 ['uri-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
1130 if (!DBA::isResult($parent)) {
1131 Logger::error('Parent not found', ['uri-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
1135 $author = Contact::selectFirst(['url', 'contact-type', 'network'], ['id' => $item['author-id']]);
1136 if (!DBA::isResult($author)) {
1137 Logger::error('Author not found', ['id' => $item['author-id']]);
1141 $cid = Contact::getIdForURL($author['url'], $item['uid']);
1142 if (empty($cid) || !Contact::isSharing($cid, $item['uid'])) {
1143 Logger::info('The resharer is not a following contact: quit', ['resharer' => $author['url'], 'uid' => $item['uid'], 'cid' => $cid]);
1147 if ($author['contact-type'] != Contact::TYPE_COMMUNITY) {
1148 if ($parent['post-reason'] == self::PR_ANNOUNCEMENT) {
1149 Logger::info('The parent is already marked as announced: quit', ['causer' => $parent['causer-id'], 'owner' => $parent['owner-id'], 'author' => $parent['author-id'], 'uid' => $item['uid']]);
1153 if (Contact::isSharing($parent['owner-id'], $item['uid'])) {
1154 Logger::info('The resharer is no forum: quit', ['resharer' => $item['author-id'], 'owner' => $parent['owner-id'], 'author' => $parent['author-id'], 'uid' => $item['uid']]);
1157 self::update(['post-reason' => self::PR_ANNOUNCEMENT, 'causer-id' => $item['author-id']], ['id' => $parent['id']]);
1158 Logger::info('Set announcement post-reason', ['uri-id' => $item['uri-id'], 'thr-parent-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
1162 self::update(['owner-id' => $item['author-id'], 'contact-id' => $cid], ['id' => $parent['id']]);
1163 Logger::info('Change owner of the parent', ['uri-id' => $item['uri-id'], 'thr-parent-id' => $item['thr-parent-id'], 'uid' => $item['uid'], 'owner-id' => $item['author-id'], 'contact-id' => $cid]);
1167 * Distribute the given item to users who subscribed to their tags
1169 * @param array $item Processed item
1171 private static function distributeByTags(array $item)
1173 if (($item['uid'] != 0) || ($item['gravity'] != GRAVITY_PARENT) || !in_array($item['network'], Protocol::FEDERATED)) {
1177 $uids = Tag::getUIDListByURIId($item['uri-id']);
1178 foreach ($uids as $uid) {
1179 if (Contact::isSharing($item['author-id'], $uid)) {
1182 $fields = ['post-reason' => self::PR_TAG];
1185 $stored = self::storeForUserByUriId($item['uri-id'], $uid, $fields);
1186 Logger::info('Stored item for users', ['uri-id' => $item['uri-id'], 'uid' => $uid, 'fields' => $fields, 'stored' => $stored]);
1191 * Distributes public items to the receivers
1193 * @param integer $itemid Item ID that should be added
1194 * @param string $signed_text Original text (for Diaspora signatures), JSON encoded.
1195 * @throws \Exception
1197 public static function distribute($itemid, $signed_text = '')
1199 $condition = ["`id` IN (SELECT `parent` FROM `post-user-view` WHERE `id` = ?)", $itemid];
1200 $parent = Post::selectFirst(['owner-id'], $condition);
1201 if (!DBA::isResult($parent)) {
1202 Logger::warning('Item not found', ['condition' => $condition]);
1206 // Only distribute public items from native networks
1207 $condition = ['id' => $itemid, 'uid' => 0,
1208 'network' => array_merge(Protocol::FEDERATED ,['']),
1209 'visible' => true, 'deleted' => false, 'private' => [self::PUBLIC, self::UNLISTED]];
1210 $item = Post::selectFirst(self::ITEM_FIELDLIST, $condition);
1211 if (!DBA::isResult($item)) {
1212 Logger::warning('Item not found', ['condition' => $condition]);
1216 $origin = $item['origin'];
1220 /// @todo add a field "pcid" in the contact table that referrs to the public contact id.
1221 $owner = DBA::selectFirst('contact', ['url', 'nurl', 'alias'], ['id' => $parent['owner-id']]);
1222 if (!DBA::isResult($owner)) {
1226 $condition = ['nurl' => $owner['nurl'], 'rel' => [Contact::SHARING, Contact::FRIEND]];
1227 $contacts = DBA::select('contact', ['uid'], $condition);
1228 while ($contact = DBA::fetch($contacts)) {
1229 if ($contact['uid'] == 0) {
1233 $users[$contact['uid']] = $contact['uid'];
1235 DBA::close($contacts);
1237 $condition = ['alias' => $owner['url'], 'rel' => [Contact::SHARING, Contact::FRIEND]];
1238 $contacts = DBA::select('contact', ['uid'], $condition);
1239 while ($contact = DBA::fetch($contacts)) {
1240 if ($contact['uid'] == 0) {
1244 $users[$contact['uid']] = $contact['uid'];
1246 DBA::close($contacts);
1248 if (!empty($owner['alias'])) {
1249 $condition = ['nurl' => Strings::normaliseLink($owner['alias']), 'rel' => [Contact::SHARING, Contact::FRIEND]];
1250 $contacts = DBA::select('contact', ['uid'], $condition);
1251 while ($contact = DBA::fetch($contacts)) {
1252 if ($contact['uid'] == 0) {
1256 $users[$contact['uid']] = $contact['uid'];
1258 DBA::close($contacts);
1263 if ($item['uri-id'] != $item['parent-uri-id']) {
1264 $parents = Post::select(['uid', 'origin'], ["`uri-id` = ? AND `uid` != 0", $item['parent-uri-id']]);
1265 while ($parent = Post::fetch($parents)) {
1266 $users[$parent['uid']] = $parent['uid'];
1267 if ($parent['origin'] && !$origin) {
1268 $origin_uid = $parent['uid'];
1271 DBA::close($parents);
1274 foreach ($users as $uid) {
1275 if ($origin_uid == $uid) {
1276 $item['diaspora_signed_text'] = $signed_text;
1278 self::storeForUser($item, $uid);
1283 * Store a public item defined by their URI-ID for the given users
1285 * @param integer $uri_id URI-ID of the given item
1286 * @param integer $uid The user that will receive the item entry
1287 * @param array $fields Additional fields to be stored
1288 * @return integer stored item id
1290 public static function storeForUserByUriId(int $uri_id, int $uid, array $fields = [])
1292 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['uri-id' => $uri_id, 'uid' => 0]);
1293 if (!DBA::isResult($item)) {
1297 if (($item['private'] == self::PRIVATE) || !in_array($item['network'], Protocol::FEDERATED)) {
1298 Logger::notice('Item is private or not from a federated network. It will not be stored for the user.', ['uri-id' => $uri_id, 'uid' => $uid, 'private' => $item['private'], 'network' => $item['network']]);
1302 $item['post-reason'] = self::PR_STORED;
1304 $item = array_merge($item, $fields);
1306 $stored = self::storeForUser($item, $uid);
1307 Logger::info('Public item stored for user', ['uri-id' => $item['uri-id'], 'uid' => $uid, 'stored' => $stored]);
1312 * Store a public item array for the given users
1314 * @param array $item The item entry that will be stored
1315 * @param integer $uid The user that will receive the item entry
1316 * @return integer stored item id
1317 * @throws \Exception
1319 private static function storeForUser(array $item, int $uid)
1321 if (Post::exists(['uri-id' => $item['uri-id'], 'uid' => $uid])) {
1322 Logger::info('Item already exists', ['uri-id' => $item['uri-id'], 'uid' => $uid]);
1327 unset($item['parent']);
1328 unset($item['mention']);
1329 unset($item['starred']);
1330 unset($item['unseen']);
1331 unset($item['psid']);
1333 $item['uid'] = $uid;
1334 $item['origin'] = 0;
1337 if ($item['gravity'] == GRAVITY_PARENT) {
1338 $contact = Contact::getByURLForUser($item['owner-link'], $uid, false, ['id']);
1340 $contact = Contact::getByURLForUser($item['author-link'], $uid, false, ['id']);
1343 if (!empty($contact['id'])) {
1344 $item['contact-id'] = $contact['id'];
1346 // Shouldn't happen at all
1347 Logger::warning('contact-id could not be fetched', ['uid' => $uid, 'item' => $item]);
1348 $self = DBA::selectFirst('contact', ['id'], ['self' => true, 'uid' => $uid]);
1349 if (!DBA::isResult($self)) {
1350 // Shouldn't happen even less
1351 Logger::warning('self contact could not be fetched', ['uid' => $uid, 'item' => $item]);
1354 $item['contact-id'] = $self['id'];
1357 /// @todo Handling of "event-id"
1360 if ($item['gravity'] == GRAVITY_PARENT) {
1361 $contact = DBA::selectFirst('contact', [], ['id' => $item['contact-id'], 'self' => false]);
1362 if (DBA::isResult($contact)) {
1363 $notify = self::isRemoteSelf($contact, $item);
1367 $distributed = self::insert($item, $notify, true);
1369 if (!$distributed) {
1370 Logger::info("Distributed public item wasn't stored", ['uri-id' => $item['uri-id'], 'user' => $uid]);
1372 Logger::info('Distributed public item was stored', ['uri-id' => $item['uri-id'], 'user' => $uid, 'stored' => $distributed]);
1374 return $distributed;
1378 * Add a shadow entry for a given item id that is a thread starter
1380 * We store every public item entry additionally with the user id "0".
1381 * This is used for the community page and for the search.
1382 * It is planned that in the future we will store public item entries only once.
1384 * @param integer $itemid Item ID that should be added
1385 * @throws \Exception
1387 private static function addShadow($itemid)
1389 $fields = ['uid', 'private', 'visible', 'deleted', 'network', 'uri-id'];
1390 $condition = ['id' => $itemid, 'gravity' => GRAVITY_PARENT];
1391 $item = Post::selectFirst($fields, $condition);
1393 if (!DBA::isResult($item)) {
1397 // is it already a copy?
1398 if (($itemid == 0) || ($item['uid'] == 0)) {
1402 // Is it a visible public post?
1403 if (!$item["visible"] || $item["deleted"] || ($item["private"] == self::PRIVATE)) {
1407 // is it an entry from a connector? Only add an entry for natively connected networks
1408 if (!in_array($item["network"], array_merge(Protocol::FEDERATED ,['']))) {
1412 if (Post::exists(['uri-id' => $item['uri-id'], 'uid' => 0])) {
1416 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $itemid]);
1418 if (DBA::isResult($item)) {
1419 // Preparing public shadow (removing user specific data)
1422 unset($item['parent']);
1423 unset($item['wall']);
1424 unset($item['mention']);
1425 unset($item['origin']);
1426 unset($item['starred']);
1427 unset($item['postopts']);
1428 unset($item['inform']);
1429 unset($item['post-reason']);
1430 if ($item['uri-id'] == $item['parent-uri-id']) {
1431 $item['contact-id'] = $item['owner-id'];
1433 $item['contact-id'] = $item['author-id'];
1436 $public_shadow = self::insert($item, false, true);
1438 Logger::info('Stored public shadow', ['thread' => $itemid, 'id' => $public_shadow]);
1443 * Add a shadow entry for a given item id that is a comment
1445 * This function does the same like the function above - but for comments
1447 * @param integer $itemid Item ID that should be added
1448 * @throws \Exception
1450 private static function addShadowPost($itemid)
1452 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $itemid]);
1453 if (!DBA::isResult($item)) {
1457 // Is it a toplevel post?
1458 if ($item['gravity'] == GRAVITY_PARENT) {
1459 self::addShadow($itemid);
1463 // Is this a shadow entry?
1464 if ($item['uid'] == 0) {
1468 // Is there a shadow parent?
1469 if (!Post::exists(['uri-id' => $item['parent-uri-id'], 'uid' => 0])) {
1473 // Is there already a shadow entry?
1474 if (Post::exists(['uri-id' => $item['uri-id'], 'uid' => 0])) {
1478 // Save "origin" and "parent" state
1479 $origin = $item['origin'];
1480 $parent = $item['parent'];
1482 // Preparing public shadow (removing user specific data)
1485 unset($item['parent']);
1486 unset($item['wall']);
1487 unset($item['mention']);
1488 unset($item['origin']);
1489 unset($item['starred']);
1490 unset($item['postopts']);
1491 unset($item['inform']);
1492 unset($item['post-reason']);
1493 $item['contact-id'] = Contact::getIdForURL($item['author-link']);
1495 $public_shadow = self::insert($item, false, true);
1497 Logger::info('Stored public shadow', ['uri-id' => $item['uri-id'], 'id' => $public_shadow]);
1499 // If this was a comment to a Diaspora post we don't get our comment back.
1500 // This means that we have to distribute the comment by ourselves.
1501 if ($origin && Post::exists(['id' => $parent, 'network' => Protocol::DIASPORA])) {
1502 self::distribute($public_shadow);
1507 * Adds a language specification in a "language" element of given $arr.
1508 * Expects "body" element to exist in $arr.
1510 * @param array $item
1511 * @return string detected language
1512 * @throws \Text_LanguageDetect_Exception
1514 private static function getLanguage(array $item)
1516 if (!empty($item['language'])) {
1517 return $item['language'];
1520 if (!in_array($item['gravity'], [GRAVITY_PARENT, GRAVITY_COMMENT]) || empty($item['body'])) {
1524 // Convert attachments to links
1525 $naked_body = BBCode::removeAttachment($item['body']);
1526 if (empty($naked_body)) {
1530 // Remove links and pictures
1531 $naked_body = BBCode::removeLinks($naked_body);
1533 // Convert the title and the body to plain text
1534 $naked_body = trim($item['title'] . "\n" . BBCode::toPlaintext($naked_body));
1536 // Remove possibly remaining links
1537 $naked_body = preg_replace(Strings::autoLinkRegEx(), '', $naked_body);
1539 if (empty($naked_body)) {
1543 $ld = new Language(DI::l10n()->getAvailableLanguages());
1544 $languages = $ld->detect($naked_body)->limit(0, 3)->close();
1545 if (is_array($languages)) {
1546 return json_encode($languages);
1552 public static function getLanguageMessage(array $item)
1554 $iso639 = new \Matriphe\ISO639\ISO639;
1556 $used_languages = '';
1557 foreach (json_decode($item['language'], true) as $language => $reliability) {
1558 $used_languages .= $iso639->languageByCode1($language) . ' (' . $language . "): " . number_format($reliability, 5) . '\n';
1560 $used_languages = DI::l10n()->t('Detected languages in this post:\n%s', $used_languages);
1561 return $used_languages;
1565 * Creates an unique guid out of a given uri
1567 * @param string $uri uri of an item entry
1568 * @param string $host hostname for the GUID prefix
1569 * @return string unique guid
1571 public static function guidFromUri($uri, $host)
1573 // Our regular guid routine is using this kind of prefix as well
1574 // We have to avoid that different routines could accidentally create the same value
1575 $parsed = parse_url($uri);
1577 // We use a hash of the hostname as prefix for the guid
1578 $guid_prefix = hash("crc32", $host);
1580 // Remove the scheme to make sure that "https" and "http" doesn't make a difference
1581 unset($parsed["scheme"]);
1583 // Glue it together to be able to make a hash from it
1584 $host_id = implode("/", $parsed);
1586 // We could use any hash algorithm since it isn't a security issue
1587 $host_hash = hash("ripemd128", $host_id);
1589 return $guid_prefix.$host_hash;
1593 * generate an unique URI
1595 * @param integer $uid User id
1596 * @param string $guid An existing GUID (Otherwise it will be generated)
1599 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1601 public static function newURI($uid, $guid = "")
1604 $guid = System::createUUID();
1607 return DI::baseUrl()->get() . '/objects/' . $guid;
1611 * Set "success_update" and "last-item" to the date of the last time we heard from this contact
1613 * This can be used to filter for inactive contacts.
1614 * Only do this for public postings to avoid privacy problems, since poco data is public.
1615 * Don't set this value if it isn't from the owner (could be an author that we don't know)
1617 * @param array $arr Contains the just posted item record
1618 * @throws \Exception
1620 private static function updateContact($arr)
1622 // Unarchive the author
1623 $contact = DBA::selectFirst('contact', [], ['id' => $arr["author-id"]]);
1624 if (DBA::isResult($contact)) {
1625 Contact::unmarkForArchival($contact);
1628 // Unarchive the contact if it's not our own contact
1629 $contact = DBA::selectFirst('contact', [], ['id' => $arr["contact-id"], 'self' => false]);
1630 if (DBA::isResult($contact)) {
1631 Contact::unmarkForArchival($contact);
1634 /// @todo On private posts we could obfuscate the date
1635 $update = ($arr['private'] != self::PRIVATE) || in_array($arr['network'], Protocol::FEDERATED);
1637 // Is it a forum? Then we don't care about the rules from above
1638 if (!$update && in_array($arr["network"], [Protocol::ACTIVITYPUB, Protocol::DFRN]) && ($arr["parent-uri-id"] === $arr["uri-id"])) {
1639 if (DBA::exists('contact', ['id' => $arr['contact-id'], 'forum' => true])) {
1645 // The "self" contact id is used (for example in the connectors) when the contact is unknown
1646 // So we have to ensure to only update the last item when it had been our own post,
1647 // or it had been done by a "regular" contact.
1648 if (!empty($arr['wall'])) {
1649 $condition = ['id' => $arr['contact-id']];
1651 $condition = ['id' => $arr['contact-id'], 'self' => false];
1653 DBA::update('contact', ['failed' => false, 'success_update' => $arr['received'], 'last-item' => $arr['received']], $condition);
1655 // Now do the same for the system wide contacts with uid=0
1656 if ($arr['private'] != self::PRIVATE) {
1657 DBA::update('contact', ['failed' => false, 'success_update' => $arr['received'], 'last-item' => $arr['received']],
1658 ['id' => $arr['owner-id']]);
1660 if ($arr['owner-id'] != $arr['author-id']) {
1661 DBA::update('contact', ['failed' => false, 'success_update' => $arr['received'], 'last-item' => $arr['received']],
1662 ['id' => $arr['author-id']]);
1667 public static function setHashtags($body)
1669 $body = BBCode::performWithEscapedTags($body, ['noparse', 'pre', 'code', 'img'], function ($body) {
1670 $tags = BBCode::getTags($body);
1673 if (!count($tags)) {
1677 // This sorting is important when there are hashtags that are part of other hashtags
1678 // Otherwise there could be problems with hashtags like #test and #test2
1679 // Because of this we are sorting from the longest to the shortest tag.
1680 usort($tags, function ($a, $b) {
1681 return strlen($b) <=> strlen($a);
1684 $URLSearchString = "^\[\]";
1686 // All hashtags should point to the home server if "local_tags" is activated
1687 if (DI::config()->get('system', 'local_tags')) {
1688 $body = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1689 "#[url=" . DI::baseUrl() . "/search?tag=$2]$2[/url]", $body);
1692 // mask hashtags inside of url, bookmarks and attachments to avoid urls in urls
1693 $body = preg_replace_callback("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1695 return ("[url=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/url]");
1698 $body = preg_replace_callback("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism",
1700 return ("[bookmark=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/bookmark]");
1703 $body = preg_replace_callback("/\[attachment (.*)\](.*?)\[\/attachment\]/ism",
1705 return ("[attachment " . str_replace("#", "#", $match[1]) . "]" . $match[2] . "[/attachment]");
1708 // Repair recursive urls
1709 $body = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1712 foreach ($tags as $tag) {
1713 if ((strpos($tag, '#') !== 0) || strpos($tag, '[url=') || strlen($tag) < 2 || $tag[1] == '#') {
1717 $basetag = str_replace('_', ' ', substr($tag, 1));
1718 $newtag = '#[url=' . DI::baseUrl() . '/search?tag=' . $basetag . ']' . $basetag . '[/url]';
1720 $body = str_replace($tag, $newtag, $body);
1723 // Convert back the masked hashtags
1724 $body = str_replace("#", "#", $body);
1733 * look for mention tags and setup a second delivery chain for forum/community posts if appropriate
1736 * @param int $item_id
1737 * @return boolean true if item was deleted, else false
1738 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1739 * @throws \ImagickException
1741 private static function tagDeliver($uid, $item_id)
1745 $user = DBA::selectFirst('user', [], ['uid' => $uid]);
1746 if (!DBA::isResult($user)) {
1750 $community_page = (($user['page-flags'] == User::PAGE_FLAGS_COMMUNITY) ? true : false);
1751 $prvgroup = (($user['page-flags'] == User::PAGE_FLAGS_PRVGROUP) ? true : false);
1753 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $item_id]);
1754 if (!DBA::isResult($item)) {
1758 $link = Strings::normaliseLink(DI::baseUrl() . '/profile/' . $user['nickname']);
1761 * Diaspora uses their own hardwired link URL in @-tags
1762 * instead of the one we supply with webfinger
1764 $dlink = Strings::normaliseLink(DI::baseUrl() . '/u/' . $user['nickname']);
1766 $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism', $item['body'], $matches, PREG_SET_ORDER);
1768 foreach ($matches as $mtch) {
1769 if (Strings::compareLink($link, $mtch[1]) || Strings::compareLink($dlink, $mtch[1])) {
1771 Logger::log('mention found: ' . $mtch[2]);
1777 $tags = Tag::getByURIId($item['uri-id'], [Tag::MENTION, Tag::EXCLUSIVE_MENTION]);
1778 foreach ($tags as $tag) {
1779 if (Strings::compareLink($link, $tag['url']) || Strings::compareLink($dlink, $tag['url'])) {
1781 DI::logger()->info('mention found in tag.', ['url' => $tag['url']]);
1787 if (($community_page || $prvgroup) &&
1788 !$item['wall'] && !$item['origin'] && ($item['gravity'] == GRAVITY_PARENT)) {
1789 Logger::info('Delete private group/communiy top-level item without mention', ['id' => $item['id'], 'guid'=> $item['guid']]);
1790 Post\User::delete(['uri-id' => $item['uri-id'], 'uid' => $item['uid']]);
1796 $arr = ['item' => $item, 'user' => $user];
1798 Hook::callAll('tagged', $arr);
1800 if (!$community_page && !$prvgroup) {
1805 * tgroup delivery - setup a second delivery chain
1806 * prevent delivery looping - only proceed
1807 * if the message originated elsewhere and is a top-level post
1809 if ($item['wall'] || $item['origin'] || ($item['id'] != $item['parent'])) {
1813 // now change this copy of the post to a forum head message and deliver to all the tgroup members
1814 $self = DBA::selectFirst('contact', ['id', 'name', 'url', 'thumb'], ['uid' => $uid, 'self' => true]);
1815 if (!DBA::isResult($self)) {
1819 $owner_id = Contact::getIdForURL($self['url']);
1821 // also reset all the privacy bits to the forum default permissions
1823 $private = ($user['allow_cid'] || $user['allow_gid'] || $user['deny_cid'] || $user['deny_gid']) ? self::PRIVATE : self::PUBLIC;
1825 $psid = PermissionSet::getIdFromACL(
1833 $forum_mode = ($prvgroup ? 2 : 1);
1835 $fields = ['wall' => true, 'origin' => true, 'forum_mode' => $forum_mode, 'contact-id' => $self['id'],
1836 'owner-id' => $owner_id, 'private' => $private, 'psid' => $psid];
1837 self::update($fields, ['id' => $item['id']]);
1839 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], 'Notifier', Delivery::POST, (int)$item['uri-id'], (int)$item['uid']);
1841 self::performActivity($item['id'], 'announce', $uid);
1847 * Automatically reshare the item if the "remote_self" option is selected
1849 * @param array $item
1852 private static function autoReshare(array $item)
1854 if ($item['gravity'] != GRAVITY_PARENT) {
1858 if (!DBA::exists('contact', ['id' => $item['contact-id'], 'remote_self' => Contact::MIRROR_NATIVE_RESHARE])) {
1862 if (!in_array($item['network'], [Protocol::ACTIVITYPUB, Protocol::DFRN])) {
1866 Logger::info('Automatically reshare item', ['uid' => $item['uid'], 'id' => $item['id'], 'guid' => $item['guid'], 'uri-id' => $item['uri-id']]);
1868 self::performActivity($item['id'], 'announce', $item['uid']);
1871 public static function isRemoteSelf($contact, &$datarray)
1873 if (!$contact['remote_self']) {
1877 // Prevent the forwarding of posts that are forwarded
1878 if (!empty($datarray["extid"]) && ($datarray["extid"] == Protocol::DFRN)) {
1879 Logger::info('Already forwarded');
1883 // Prevent to forward already forwarded posts
1884 if ($datarray["app"] == DI::baseUrl()->getHostname()) {
1885 Logger::info('Already forwarded (second test)');
1889 // Only forward posts
1890 if ($datarray["verb"] != Activity::POST) {
1891 Logger::info('No post');
1895 if (($contact['network'] != Protocol::FEED) && ($datarray['private'] == self::PRIVATE)) {
1896 Logger::info('Not public');
1900 $datarray2 = $datarray;
1901 Logger::info('remote-self start', ['contact' => $contact['url'], 'remote_self'=> $contact['remote_self'], 'item' => $datarray]);
1902 if ($contact['remote_self'] == Contact::MIRROR_OWN_POST) {
1903 $self = DBA::selectFirst('contact', ['id', 'name', 'url', 'thumb'],
1904 ['uid' => $contact['uid'], 'self' => true]);
1905 if (DBA::isResult($self)) {
1906 $datarray['contact-id'] = $self["id"];
1908 $datarray['owner-name'] = $self["name"];
1909 $datarray['owner-link'] = $self["url"];
1910 $datarray['owner-avatar'] = $self["thumb"];
1912 $datarray['author-name'] = $datarray['owner-name'];
1913 $datarray['author-link'] = $datarray['owner-link'];
1914 $datarray['author-avatar'] = $datarray['owner-avatar'];
1916 unset($datarray['edited']);
1918 unset($datarray['network']);
1919 unset($datarray['owner-id']);
1920 unset($datarray['author-id']);
1923 if ($contact['network'] != Protocol::FEED) {
1924 $old_uri_id = $datarray["uri-id"] ?? 0;
1925 $datarray["guid"] = System::createUUID();
1926 unset($datarray["plink"]);
1927 $datarray["uri"] = self::newURI($contact['uid'], $datarray["guid"]);
1928 $datarray["uri-id"] = ItemURI::getIdByURI($datarray["uri"]);
1929 $datarray["extid"] = Protocol::DFRN;
1930 $urlpart = parse_url($datarray2['author-link']);
1931 $datarray["app"] = $urlpart["host"];
1932 if (!empty($old_uri_id)) {
1933 Post\Media::copy($old_uri_id, $datarray["uri-id"]);
1936 unset($datarray["parent-uri"]);
1937 unset($datarray["thr-parent"]);
1939 $datarray['private'] = self::PUBLIC;
1943 if ($contact['network'] != Protocol::FEED) {
1944 // Store the original post
1945 $result = self::insert($datarray2);
1946 Logger::info('remote-self post original item', ['contact' => $contact['url'], 'result'=> $result, 'item' => $datarray2]);
1948 $datarray["app"] = "Feed";
1952 // Trigger automatic reactions for addons
1953 $datarray['api_source'] = true;
1955 // We have to tell the hooks who we are - this really should be improved
1956 $_SESSION['authenticated'] = true;
1957 $_SESSION['uid'] = $contact['uid'];
1959 return (bool)$result;
1966 * @param array $item
1969 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1970 * @throws \ImagickException
1972 public static function fixPrivatePhotos($s, $uid, $item = null, $cid = 0)
1974 if (DI::config()->get('system', 'disable_embedded')) {
1978 Logger::info('check for photos');
1979 $site = substr(DI::baseUrl(), strpos(DI::baseUrl(), '://'));
1984 $img_start = strpos($orig_body, '[img');
1985 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
1986 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
1988 while (($img_st_close !== false) && ($img_len !== false)) {
1989 $img_st_close++; // make it point to AFTER the closing bracket
1990 $image = substr($orig_body, $img_start + $img_st_close, $img_len);
1992 Logger::info('found photo', ['image' => $image]);
1994 if (stristr($image, $site . '/photo/')) {
1995 // Only embed locally hosted photos
1997 $i = basename($image);
1998 $i = str_replace(['.jpg', '.png', '.gif'], ['', '', ''], $i);
1999 $x = strpos($i, '-');
2002 $res = substr($i, $x + 1);
2003 $i = substr($i, 0, $x);
2004 $photo = Photo::getPhotoForUser($uid, $i, $res);
2005 if (DBA::isResult($photo)) {
2007 * Check to see if we should replace this photo link with an embedded image
2008 * 1. No need to do so if the photo is public
2009 * 2. If there's a contact-id provided, see if they're in the access list
2010 * for the photo. If so, embed it.
2011 * 3. Otherwise, if we have an item, see if the item permissions match the photo
2012 * permissions, regardless of order but first check to see if they're an exact
2013 * match to save some processing overhead.
2015 if (self::hasPermissions($photo)) {
2017 $recips = self::enumeratePermissions($photo);
2018 if (in_array($cid, $recips)) {
2022 if (self::samePermissions($uid, $item, $photo)) {
2028 $photo_img = Photo::getImageForPhoto($photo);
2029 // If a custom width and height were specified, apply before embedding
2030 if (preg_match("/\[img\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
2031 Logger::info('scaling photo');
2033 $width = intval($match[1]);
2034 $height = intval($match[2]);
2036 $photo_img->scaleDown(max($width, $height));
2039 $data = $photo_img->asString();
2040 $type = $photo_img->getType();
2042 Logger::info('replacing photo');
2043 $image = 'data:' . $type . ';base64,' . base64_encode($data);
2044 Logger::debug('replaced', ['image' => $image]);
2050 $new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/img]';
2051 $orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/img]'));
2052 if ($orig_body === false) {
2056 $img_start = strpos($orig_body, '[img');
2057 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
2058 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
2061 $new_body = $new_body . $orig_body;
2066 private static function hasPermissions($obj)
2068 return !empty($obj['allow_cid']) || !empty($obj['allow_gid']) ||
2069 !empty($obj['deny_cid']) || !empty($obj['deny_gid']);
2072 private static function samePermissions($uid, $obj1, $obj2)
2074 // first part is easy. Check that these are exactly the same.
2075 if (($obj1['allow_cid'] == $obj2['allow_cid'])
2076 && ($obj1['allow_gid'] == $obj2['allow_gid'])
2077 && ($obj1['deny_cid'] == $obj2['deny_cid'])
2078 && ($obj1['deny_gid'] == $obj2['deny_gid'])) {
2082 // This is harder. Parse all the permissions and compare the resulting set.
2083 $recipients1 = self::enumeratePermissions($obj1);
2084 $recipients2 = self::enumeratePermissions($obj2);
2088 /// @TODO Comparison of arrays, maybe use array_diff_assoc() here?
2089 return ($recipients1 == $recipients2);
2093 * Returns an array of contact-ids that are allowed to see this object
2095 * @param array $obj Item array with at least uid, allow_cid, allow_gid, deny_cid and deny_gid
2096 * @param bool $check_dead Prunes unavailable contacts from the result
2098 * @throws \Exception
2100 public static function enumeratePermissions(array $obj, bool $check_dead = false)
2102 $aclFormater = DI::aclFormatter();
2104 $allow_people = $aclFormater->expand($obj['allow_cid']);
2105 $allow_groups = Group::expand($obj['uid'], $aclFormater->expand($obj['allow_gid']), $check_dead);
2106 $deny_people = $aclFormater->expand($obj['deny_cid']);
2107 $deny_groups = Group::expand($obj['uid'], $aclFormater->expand($obj['deny_gid']), $check_dead);
2108 $recipients = array_unique(array_merge($allow_people, $allow_groups));
2109 $deny = array_unique(array_merge($deny_people, $deny_groups));
2110 $recipients = array_diff($recipients, $deny);
2114 public static function expire(int $uid, int $days, string $network = "", bool $force = false)
2116 if (!$uid || ($days < 1)) {
2120 $condition = ["`uid` = ? AND NOT `deleted` AND `gravity` = ?",
2121 $uid, GRAVITY_PARENT];
2124 * $expire_network_only = save your own wall posts
2125 * and just expire conversations started by others
2127 $expire_network_only = DI::pConfig()->get($uid, 'expire', 'network_only', false);
2129 if ($expire_network_only) {
2130 $condition[0] .= " AND NOT `wall`";
2133 if ($network != "") {
2134 $condition[0] .= " AND `network` = ?";
2135 $condition[] = $network;
2138 $condition[0] .= " AND `received` < UTC_TIMESTAMP() - INTERVAL ? DAY";
2139 $condition[] = $days;
2141 $items = Post::select(['resource-id', 'starred', 'id', 'post-type', 'uid', 'uri-id'], $condition);
2143 if (!DBA::isResult($items)) {
2147 $expire_items = DI::pConfig()->get($uid, 'expire', 'items', true);
2149 // Forcing expiring of items - but not notes and marked items
2151 $expire_items = true;
2154 $expire_notes = DI::pConfig()->get($uid, 'expire', 'notes', true);
2155 $expire_starred = DI::pConfig()->get($uid, 'expire', 'starred', true);
2156 $expire_photos = DI::pConfig()->get($uid, 'expire', 'photos', false);
2160 $priority = DI::config()->get('system', 'expire-notify-priority');
2162 while ($item = Post::fetch($items)) {
2163 // don't expire filed items
2164 if (DBA::exists('post-category', ['uri-id' => $item['uri-id'], 'uid' => $item['uid'], 'type' => Post\Category::FILE])) {
2168 // Only expire posts, not photos and photo comments
2170 if (!$expire_photos && !empty($item['resource-id'])) {
2172 } elseif (!$expire_starred && intval($item['starred'])) {
2174 } elseif (!$expire_notes && ($item['post-type'] == self::PT_PERSONAL_NOTE)) {
2176 } elseif (!$expire_items && ($item['post-type'] != self::PT_PERSONAL_NOTE)) {
2180 self::markForDeletionById($item['id'], $priority);
2185 Logger::log('User ' . $uid . ": expired $expired items; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
2188 public static function firstPostDate($uid, $wall = false)
2190 $user = User::getById($uid, ['register_date']);
2195 $condition = ["`uid` = ? AND `wall` = ? AND NOT `deleted` AND `visible` AND `received` >= ?",
2196 $uid, $wall, $user['register_date']];
2197 $params = ['order' => ['received' => false]];
2198 $thread = Post::selectFirstThread(['received'], $condition, $params);
2199 if (DBA::isResult($thread)) {
2200 $postdate = substr(DateTimeFormat::local($thread['received']), 0, 10);
2207 * add/remove activity to an item
2209 * Toggle activities as like,dislike,attend of an item
2211 * @param int $item_id
2212 * @param string $verb
2213 * Activity verb. One of
2214 * like, unlike, dislike, undislike, attendyes, unattendyes,
2215 * attendno, unattendno, attendmaybe, unattendmaybe,
2216 * announce, unannouce
2218 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2219 * @throws \ImagickException
2220 * @hook 'post_local_end'
2222 * 'post_id' => ID of posted item
2224 public static function performActivity(int $item_id, string $verb, int $uid)
2230 Logger::notice('Start create activity', ['verb' => $verb, 'item' => $item_id, 'user' => $uid]);
2232 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $item_id]);
2233 if (!DBA::isResult($item)) {
2234 Logger::log('like: unknown item ' . $item_id);
2238 $uri_id = $item['uri-id'];
2240 if (!in_array($item['uid'], [0, $uid])) {
2244 if (!Post::exists(['uri-id' => $item['parent-uri-id'], 'uid' => $uid])) {
2245 $stored = self::storeForUserByUriId($item['parent-uri-id'], $uid);
2246 if (($item['parent-uri-id'] == $item['uri-id']) && !empty($stored)) {
2247 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $stored]);
2248 if (!DBA::isResult($item)) {
2249 Logger::info('Could not fetch just created item - should not happen', ['stored' => $stored, 'uid' => $uid, 'uri-id' => $uri_id]);
2255 // Retrieves the local post owner
2256 $owner = User::getOwnerDataById($uid);
2257 if (empty($owner)) {
2258 Logger::info('Empty owner for user', ['uid' => $uid]);
2262 // Retrieve the current logged in user's public contact
2263 $author_id = Contact::getIdForURL($owner['url']);
2264 if (empty($author_id)) {
2265 Logger::info('Empty public contact');
2273 $activity = Activity::LIKE;
2277 $activity = Activity::DISLIKE;
2281 $activity = Activity::ATTEND;
2285 $activity = Activity::ATTENDNO;
2288 case 'unattendmaybe':
2289 $activity = Activity::ATTENDMAYBE;
2293 $activity = Activity::FOLLOW;
2297 $activity = Activity::ANNOUNCE;
2300 Logger::notice('unknown verb', ['verb' => $verb, 'item' => $item_id]);
2304 $mode = Strings::startsWith($verb, 'un') ? 'delete' : 'create';
2306 // Enable activity toggling instead of on/off
2307 $event_verb_flag = $activity === Activity::ATTEND || $activity === Activity::ATTENDNO || $activity === Activity::ATTENDMAYBE;
2309 // Look for an existing verb row
2310 // Event participation activities are mutually exclusive, only one of them can exist at all times.
2311 if ($event_verb_flag) {
2312 $verbs = [Activity::ATTEND, Activity::ATTENDNO, Activity::ATTENDMAYBE];
2314 // Translate to the index based activity index
2316 foreach ($verbs as $verb) {
2317 $vids[] = Verb::getID($verb);
2320 $vids = Verb::getID($activity);
2323 $condition = ['vid' => $vids, 'deleted' => false, 'gravity' => GRAVITY_ACTIVITY,
2324 'author-id' => $author_id, 'uid' => $item['uid'], 'thr-parent-id' => $uri_id];
2325 $like_item = Post::selectFirst(['id', 'guid', 'verb'], $condition);
2327 if (DBA::isResult($like_item)) {
2329 * Truth table for existing activities
2331 * | Inputs || Outputs |
2332 * |----------------------------||-------------------|
2333 * | Mode | Event | Same verb || Delete? | Return? |
2334 * |--------|-------|-----------||---------|---------|
2335 * | create | Yes | Yes || No | Yes |
2336 * | create | Yes | No || Yes | No |
2337 * | create | No | Yes || No | Yes |
2338 * | create | No | No || N/A†|
2339 * | delete | Yes | Yes || Yes | N/A‡ |
2340 * | delete | Yes | No || No | N/A‡ |
2341 * | delete | No | Yes || Yes | N/A‡ |
2342 * | delete | No | No || N/A†|
2343 * |--------|-------|-----------||---------|---------|
2344 * | A | B | C || A xor C | !B or C |
2346 * †Can't happen: It's impossible to find an existing non-event activity without
2347 * the same verb because we are only looking for this single verb.
2349 * ‡ The "mode = delete" is returning early whether an existing activity was found or not.
2351 if ($mode == 'create' xor $like_item['verb'] == $activity) {
2352 self::markForDeletionById($like_item['id']);
2355 if (!$event_verb_flag || $like_item['verb'] == $activity) {
2360 // No need to go further if we aren't creating anything
2361 if ($mode == 'delete') {
2365 $objtype = $item['resource-id'] ? Activity\ObjectType::IMAGE : Activity\ObjectType::NOTE;
2368 'guid' => System::createUUID(),
2369 'uri' => self::newURI($item['uid']),
2370 'uid' => $item['uid'],
2371 'contact-id' => $owner['id'],
2372 'wall' => $item['wall'],
2374 'network' => Protocol::DFRN,
2375 'protocol' => Conversation::PARCEL_DIRECT,
2376 'direction' => Conversation::PUSH,
2377 'gravity' => GRAVITY_ACTIVITY,
2378 'parent' => $item['id'],
2379 'thr-parent' => $item['uri'],
2380 'owner-id' => $author_id,
2381 'author-id' => $author_id,
2382 'body' => $activity,
2383 'verb' => $activity,
2384 'object-type' => $objtype,
2385 'allow_cid' => $item['allow_cid'],
2386 'allow_gid' => $item['allow_gid'],
2387 'deny_cid' => $item['deny_cid'],
2388 'deny_gid' => $item['deny_gid'],
2393 $signed = Diaspora::createLikeSignature($uid, $new_item);
2394 if (!empty($signed)) {
2395 $new_item['diaspora_signed_text'] = json_encode($signed);
2398 $new_item_id = self::insert($new_item);
2400 // If the parent item isn't visible then set it to visible
2401 if (!$item['visible']) {
2402 self::update(['visible' => true], ['id' => $item['id']]);
2405 $new_item['id'] = $new_item_id;
2407 Hook::callAll('post_local_end', $new_item);
2413 * Fetch the SQL condition for the given user id
2415 * @param integer $owner_id User ID for which the permissions should be fetched
2416 * @return array condition
2418 public static function getPermissionsConditionArrayByUserId(int $owner_id)
2420 $local_user = local_user();
2421 $remote_user = Session::getRemoteContactID($owner_id);
2423 // default permissions - anonymous user
2424 $condition = ["`private` != ?", self::PRIVATE];
2426 if ($local_user && ($local_user == $owner_id)) {
2427 // Profile owner - everything is visible
2429 } elseif ($remote_user) {
2430 // Authenticated visitor - fetch the matching permissionsets
2431 $set = PermissionSet::get($owner_id, $remote_user);
2433 $condition = ["(`private` != ? OR (`private` = ? AND `wall`
2434 AND `psid` IN (" . implode(', ', array_fill(0, count($set), '?')) . ")))",
2435 self::PRIVATE, self::PRIVATE];
2436 $condition = array_merge($condition, $set);
2444 * Get a permission SQL string for the given user
2446 * @param int $owner_id
2447 * @param string $table
2450 public static function getPermissionsSQLByUserId(int $owner_id, string $table = '')
2452 $local_user = local_user();
2453 $remote_user = Session::getRemoteContactID($owner_id);
2455 if (!empty($table)) {
2456 $table = DBA::quoteIdentifier($table) . '.';
2460 * Construct permissions
2462 * default permissions - anonymous user
2464 $sql = sprintf(" AND " . $table . "`private` != %d", self::PRIVATE);
2466 // Profile owner - everything is visible
2467 if ($local_user && ($local_user == $owner_id)) {
2469 } elseif ($remote_user) {
2471 * Authenticated visitor. Unless pre-verified,
2472 * check that the contact belongs to this $owner_id
2473 * and load the groups the visitor belongs to.
2474 * If pre-verified, the caller is expected to have already
2475 * done this and passed the groups into this function.
2477 $set = PermissionSet::get($owner_id, $remote_user);
2480 $sql_set = sprintf(" OR (" . $table . "`private` = %d AND " . $table . "`wall` AND " . $table . "`psid` IN (", self::PRIVATE) . implode(',', $set) . "))";
2485 $sql = sprintf(" AND (" . $table . "`private` != %d", self::PRIVATE) . $sql_set . ")";
2492 * get translated item type
2494 * @param array $item
2495 * @param \Friendica\Core\L10n $l10n
2498 public static function postType(array $item, \Friendica\Core\L10n $l10n)
2500 if (!empty($item['event-id'])) {
2501 return $l10n->t('event');
2502 } elseif (!empty($item['resource-id'])) {
2503 return $l10n->t('photo');
2504 } elseif ($item['gravity'] == GRAVITY_ACTIVITY) {
2505 return $l10n->t('activity');
2506 } elseif ($item['gravity'] == GRAVITY_COMMENT) {
2507 return $l10n->t('comment');
2510 return $l10n->t('post');
2514 * Sets the "rendered-html" field of the provided item
2516 * Body is preserved to avoid side-effects as we modify it just-in-time for spoilers and private image links
2518 * @param array $item
2520 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2521 * @todo Remove reference, simply return "rendered-html" and "rendered-hash"
2523 public static function putInCache(&$item)
2525 // Save original body to prevent addons to modify it
2526 $body = $item['body'];
2528 $rendered_hash = $item['rendered-hash'] ?? '';
2529 $rendered_html = $item['rendered-html'] ?? '';
2531 if ($rendered_hash == ''
2532 || $rendered_html == ''
2533 || $rendered_hash != hash('md5', BBCode::VERSION . '::' . $body)
2534 || DI::config()->get('system', 'ignore_cache')
2536 self::addRedirToImageTags($item);
2538 $item['rendered-html'] = BBCode::convert($item['body']);
2539 $item['rendered-hash'] = hash('md5', BBCode::VERSION . '::' . $body);
2541 $hook_data = ['item' => $item, 'rendered-html' => $item['rendered-html'], 'rendered-hash' => $item['rendered-hash']];
2542 Hook::callAll('put_item_in_cache', $hook_data);
2543 $item['rendered-html'] = $hook_data['rendered-html'];
2544 $item['rendered-hash'] = $hook_data['rendered-hash'];
2547 // Update if the generated values differ from the existing ones
2548 if ((($rendered_hash != $item['rendered-hash']) || ($rendered_html != $item['rendered-html'])) && !empty($item['id'])) {
2551 'rendered-html' => $item['rendered-html'],
2552 'rendered-hash' => $item['rendered-hash']
2554 ['id' => $item['id']]
2559 $item['body'] = $body;
2563 * Find any non-embedded images in private items and add redir links to them
2565 * @param array &$item The field array of an item row
2567 private static function addRedirToImageTags(array &$item)
2572 $cnt = preg_match_all('|\[img\](http[^\[]*?/photo/[a-fA-F0-9]+?(-[0-9]\.[\w]+?)?)\[\/img\]|', $item['body'], $matches, PREG_SET_ORDER);
2574 foreach ($matches as $mtch) {
2575 if (strpos($mtch[1], '/redir') !== false) {
2579 if ((local_user() == $item['uid']) && ($item['private'] == self::PRIVATE) && ($item['contact-id'] != $app->contact['id']) && ($item['network'] == Protocol::DFRN)) {
2580 $img_url = 'redir/' . $item['contact-id'] . '?url=' . urlencode($mtch[1]);
2581 $item['body'] = str_replace($mtch[0], '[img]' . $img_url . '[/img]', $item['body']);
2588 * Given an item array, convert the body element from bbcode to html and add smilie icons.
2589 * If attach is true, also add icons for item attachments.
2591 * @param array $item
2592 * @param boolean $attach
2593 * @param boolean $is_preview
2594 * @return string item body html
2595 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2596 * @throws \ImagickException
2597 * @hook prepare_body_init item array before any work
2598 * @hook prepare_body_content_filter ('item'=>item array, 'filter_reasons'=>string array) before first bbcode to html
2599 * @hook prepare_body ('item'=>item array, 'html'=>body string, 'is_preview'=>boolean, 'filter_reasons'=>string array) after first bbcode to html
2600 * @hook prepare_body_final ('item'=>item array, 'html'=>body string) after attach icons and blockquote special case handling (spoiler, author)
2602 public static function prepareBody(array &$item, $attach = false, $is_preview = false)
2605 Hook::callAll('prepare_body_init', $item);
2607 // In order to provide theme developers more possibilities, event items
2608 // are treated differently.
2609 if ($item['object-type'] === Activity\ObjectType::EVENT && isset($item['event-id'])) {
2610 $ev = Event::getItemHTML($item);
2614 $tags = Tag::populateFromItem($item);
2616 $item['tags'] = $tags['tags'];
2617 $item['hashtags'] = $tags['hashtags'];
2618 $item['mentions'] = $tags['mentions'];
2620 // Compile eventual content filter reasons
2621 $filter_reasons = [];
2622 if (!$is_preview && public_contact() != $item['author-id']) {
2623 if (!empty($item['content-warning']) && (!local_user() || !DI::pConfig()->get(local_user(), 'system', 'disable_cw', false))) {
2624 $filter_reasons[] = DI::l10n()->t('Content warning: %s', $item['content-warning']);
2629 'filter_reasons' => $filter_reasons
2631 Hook::callAll('prepare_body_content_filter', $hook_data);
2632 $filter_reasons = $hook_data['filter_reasons'];
2636 self::putInCache($item);
2637 $s = $item["rendered-html"];
2642 'preview' => $is_preview,
2643 'filter_reasons' => $filter_reasons
2645 Hook::callAll('prepare_body', $hook_data);
2646 $s = $hook_data['html'];
2650 // Replace the blockquotes with quotes that are used in mails.
2651 $mailquote = '<blockquote type="cite" class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">';
2652 $s = str_replace(['<blockquote>', '<blockquote class="spoiler">', '<blockquote class="author">'], [$mailquote, $mailquote, $mailquote], $s);
2656 $s = self::addMediaAttachments($item, $s);
2659 if (strpos($s, '<div class="map">') !== false && !empty($item['coord'])) {
2660 $x = Map::byCoordinates(trim($item['coord']));
2662 $s = preg_replace('/\<div class\=\"map\"\>/', '$0' . $x, $s);
2666 // Replace friendica image url size with theme preference.
2667 if (!empty($a->theme_info['item_image_size'])) {
2668 $ps = $a->theme_info['item_image_size'];
2669 $s = preg_replace('|(<img[^>]+src="[^"]+/photo/[0-9a-f]+)-[0-9]|', "$1-" . $ps, $s);
2672 $s = HTML::applyContentFilter($s, $filter_reasons);
2674 $hook_data = ['item' => $item, 'html' => $s];
2675 Hook::callAll('prepare_body_final', $hook_data);
2677 return $hook_data['html'];
2681 * Add media attachments to the content
2683 * @param array $item
2684 * @param string $content
2685 * @return modified content
2687 private static function addMediaAttachments(array $item, string $content)
2691 // currently deactivated the request for Post\Media::VIDEO since it creates mutliple videos from Peertube
2692 foreach (Post\Media::getByURIId($item['uri-id'], [Post\Media::AUDIO,
2693 Post\Media::DOCUMENT, Post\Media::TORRENT, Post\Media::UNKNOWN]) as $attachment) {
2694 if (in_array($attachment['type'], [Post\Media::AUDIO, Post\Media::VIDEO]) && strpos($item['body'], $attachment['url'])) {
2698 $mime = $attachment['mimetype'];
2700 $author = ['uid' => 0, 'id' => $item['author-id'],
2701 'network' => $item['author-network'], 'url' => $item['author-link']];
2702 $the_url = Contact::magicLinkByContact($author, $attachment['url']);
2704 $filetype = strtolower(substr($mime, 0, strpos($mime, '/')));
2706 $filesubtype = strtolower(substr($mime, strpos($mime, '/') + 1));
2707 $filesubtype = str_replace('.', '-', $filesubtype);
2710 $filesubtype = 'unkn';
2713 if (($filetype == 'video')) {
2714 /// @todo Move the template to /content as well
2715 $media = Renderer::replaceMacros(Renderer::getMarkupTemplate('video_top.tpl'), [
2717 'id' => $item['author-id'],
2722 if ($item['post-type'] == Item::PT_VIDEO) {
2725 $trailing .= $media;
2727 } elseif ($filetype == 'audio') {
2728 $media = Renderer::replaceMacros(Renderer::getMarkupTemplate('content/audio.tpl'), [
2730 'id' => $item['author-id'],
2735 if ($item['post-type'] == Item::PT_AUDIO) {
2738 $trailing .= $media;
2741 $title = Strings::escapeHtml(trim(($attachment['description'] ?? '') ?: $attachment['url']));
2743 if (!empty($attachment['size'])) {
2744 $title .= ' ' . $attachment['size'] . ' ' . DI::l10n()->t('bytes');
2747 /// @todo Use a template
2748 $icon = '<div class="attachtype icon s22 type-' . $filetype . ' subtype-' . $filesubtype . '"></div>';
2749 $trailing .= '<a href="' . strip_tags($the_url) . '" title="' . $title . '" class="attachlink" target="_blank" rel="noopener noreferrer" >' . $icon . '</a>';
2753 if ($leading != '') {
2754 $content = '<div class="body-attach">' . $leading . '<div class="clear"></div></div>' . $content;
2757 if ($trailing != '') {
2758 $content .= '<div class="body-attach">' . $trailing . '<div class="clear"></div></div>';
2765 * get private link for item
2767 * @param array $item
2768 * @return boolean|array False if item has not plink, otherwise array('href'=>plink url, 'title'=>translated title)
2769 * @throws \Exception
2771 public static function getPlink($item)
2775 'href' => "display/" . $item['guid'],
2776 'orig' => "display/" . $item['guid'],
2777 'title' => DI::l10n()->t('View on separate page'),
2778 'orig_title' => DI::l10n()->t('view on separate page'),
2781 if (!empty($item['plink'])) {
2782 $ret["href"] = DI::baseUrl()->remove($item['plink']);
2783 $ret["title"] = DI::l10n()->t('link to source');
2785 } elseif (!empty($item['plink']) && ($item['private'] != self::PRIVATE)) {
2787 'href' => $item['plink'],
2788 'orig' => $item['plink'],
2789 'title' => DI::l10n()->t('link to source'),
2799 * Is the given item array a post that is sent as starting post to a forum?
2801 * @param array $item
2802 * @param array $owner
2804 * @return boolean "true" when it is a forum post
2806 public static function isForumPost(array $item, array $owner = [])
2808 if (empty($owner)) {
2809 $owner = User::getOwnerDataById($item['uid']);
2810 if (empty($owner)) {
2815 if (($item['author-id'] == $item['owner-id']) ||
2816 ($owner['id'] == $item['contact-id']) ||
2817 ($item['uri-id'] != $item['parent-uri-id']) ||
2822 return Contact::isForum($item['contact-id']);
2826 * Search item id for given URI or plink
2828 * @param string $uri
2829 * @param integer $uid
2831 * @return integer item id
2833 public static function searchByLink($uri, $uid = 0)
2835 $ssl_uri = str_replace('http://', 'https://', $uri);
2836 $uris = [$uri, $ssl_uri, Strings::normaliseLink($uri)];
2838 $item = Post::selectFirst(['id'], ['uri' => $uris, 'uid' => $uid]);
2839 if (DBA::isResult($item)) {
2843 $item = Post::selectFirst(['id'], ['plink' => $uris, 'uid' => $uid]);
2844 if (DBA::isResult($item)) {
2852 * Return the URI for a link to the post
2854 * @param string $uri URI or link to post
2856 * @return string URI
2858 public static function getURIByLink(string $uri)
2860 $ssl_uri = str_replace('http://', 'https://', $uri);
2861 $uris = [$uri, $ssl_uri, Strings::normaliseLink($uri)];
2863 $item = Post::selectFirst(['uri'], ['uri' => $uris]);
2864 if (DBA::isResult($item)) {
2865 return $item['uri'];
2868 $item = Post::selectFirst(['uri'], ['plink' => $uris]);
2869 if (DBA::isResult($item)) {
2870 return $item['uri'];
2877 * Fetches item for given URI or plink
2879 * @param string $uri
2880 * @param integer $uid
2882 * @return integer item id
2884 public static function fetchByLink(string $uri, int $uid = 0)
2886 Logger::info('Trying to fetch link', ['uid' => $uid, 'uri' => $uri]);
2887 $item_id = self::searchByLink($uri, $uid);
2888 if (!empty($item_id)) {
2889 Logger::info('Link found', ['uid' => $uid, 'uri' => $uri, 'id' => $item_id]);
2893 if ($fetched_uri = ActivityPub\Processor::fetchMissingActivity($uri)) {
2894 $item_id = self::searchByLink($fetched_uri, $uid);
2896 $item_id = Diaspora::fetchByURL($uri);
2899 if (!empty($item_id)) {
2900 Logger::info('Link fetched', ['uid' => $uid, 'uri' => $uri, 'id' => $item_id]);
2904 Logger::info('Link not found', ['uid' => $uid, 'uri' => $uri]);
2909 * Return share data from an item array (if the item is shared item)
2910 * We are providing the complete Item array, because at some time in the future
2911 * we hopefully will define these values not in the body anymore but in some item fields.
2912 * This function is meant to replace all similar functions in the system.
2914 * @param array $item
2916 * @return array with share information
2918 public static function getShareArray($item)
2920 if (!preg_match("/(.*?)\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism", $item['body'], $matches)) {
2924 $attribute_string = $matches[2];
2925 $attributes = ['comment' => trim($matches[1]), 'shared' => trim($matches[3])];
2926 foreach (['author', 'profile', 'avatar', 'guid', 'posted', 'link'] as $field) {
2927 if (preg_match("/$field=(['\"])(.+?)\\1/ism", $attribute_string, $matches)) {
2928 $attributes[$field] = trim(html_entity_decode($matches[2] ?? '', ENT_QUOTES, 'UTF-8'));
2935 * Fetch item information for shared items from the original items and adds it.
2937 * @param array $item
2939 * @return array item array with data from the original item
2941 public static function addShareDataFromOriginal(array $item)
2943 $shared = self::getShareArray($item);
2944 if (empty($shared)) {
2948 // Real reshares always have got a GUID.
2949 if (empty($shared['guid'])) {
2953 $uid = $item['uid'] ?? 0;
2955 // first try to fetch the item via the GUID. This will work for all reshares that had been created on this system
2956 $shared_item = Post::selectFirst(['title', 'body'], ['guid' => $shared['guid'], 'uid' => [0, $uid]]);
2957 if (!DBA::isResult($shared_item)) {
2958 if (empty($shared['link'])) {
2962 // Otherwhise try to find (and possibly fetch) the item via the link. This should work for Diaspora and ActivityPub posts
2963 $id = self::fetchByLink($shared['link'] ?? '', $uid);
2965 Logger::info('Original item not found', ['url' => $shared['link'] ?? '', 'callstack' => System::callstack()]);
2969 $shared_item = Post::selectFirst(['title', 'body'], ['id' => $id]);
2970 if (!DBA::isResult($shared_item)) {
2973 Logger::info('Got shared data from url', ['url' => $shared['link'], 'callstack' => System::callstack()]);
2975 Logger::info('Got shared data from guid', ['guid' => $shared['guid'], 'callstack' => System::callstack()]);
2978 if (!empty($shared_item['title'])) {
2979 $body = '[h3]' . $shared_item['title'] . "[/h3]\n" . $shared_item['body'];
2980 unset($shared_item['title']);
2982 $body = $shared_item['body'];
2985 $item['body'] = preg_replace("/\[share ([^\[\]]*)\].*\[\/share\]/ism", '[share $1]' . $body . '[/share]', $item['body']);
2986 unset($shared_item['body']);
2988 return array_merge($item, $shared_item);
2992 * Check a prospective item array against user-level permissions
2994 * @param array $item Expected keys: uri, gravity, and
2995 * author-link if is author-id is set,
2996 * owner-link if is owner-id is set,
2997 * causer-link if is causer-id is set.
2998 * @param int $user_id Local user ID
3000 * @throws \Exception
3002 protected static function isAllowedByUser(array $item, int $user_id)
3004 if (!empty($item['author-id']) && Contact\User::isBlocked($item['author-id'], $user_id)) {
3005 Logger::notice('Author is blocked by user', ['author-link' => $item['author-link'], 'uid' => $user_id, 'item-uri' => $item['uri']]);
3009 if (!empty($item['owner-id']) && Contact\User::isBlocked($item['owner-id'], $user_id)) {
3010 Logger::notice('Owner is blocked by user', ['owner-link' => $item['owner-link'], 'uid' => $user_id, 'item-uri' => $item['uri']]);
3014 // The causer is set during a thread completion, for example because of a reshare. It countains the responsible actor.
3015 if (!empty($item['causer-id']) && Contact\User::isBlocked($item['causer-id'], $user_id)) {
3016 Logger::notice('Causer is blocked by user', ['causer-link' => $item['causer-link'] ?? $item['causer-id'], 'uid' => $user_id, 'item-uri' => $item['uri']]);
3020 if (!empty($item['causer-id']) && ($item['gravity'] === GRAVITY_PARENT) && Contact\User::isIgnored($item['causer-id'], $user_id)) {
3021 Logger::notice('Causer is ignored by user', ['causer-link' => $item['causer-link'] ?? $item['causer-id'], 'uid' => $user_id, 'item-uri' => $item['uri']]);