3 * @copyright Copyright (C) 2020, Friendica
5 * @license GNU AGPL version 3 or any later version
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU Affero General Public License as
9 * published by the Free Software Foundation, either version 3 of the
10 * License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU Affero General Public License for more details.
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <https://www.gnu.org/licenses/>.
22 namespace Friendica\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;
35 use Friendica\Database\DBStructure;
37 use Friendica\Model\Post;
38 use Friendica\Protocol\Activity;
39 use Friendica\Protocol\ActivityPub;
40 use Friendica\Protocol\Diaspora;
41 use Friendica\Util\DateTimeFormat;
42 use Friendica\Util\Map;
43 use Friendica\Util\Network;
44 use Friendica\Util\Strings;
45 use Friendica\Worker\Delivery;
46 use LanguageDetection\Language;
50 // Posting types, inspired by https://www.w3.org/TR/activitystreams-vocabulary/#object-types
57 const PT_DOCUMENT = 19;
64 const PT_FOLLOWER = 69;
65 const PT_ANNOUNCEMENT = 70;
66 const PT_COMMENT = 71;
70 const PT_FETCHED = 75;
71 const PT_PERSONAL_NOTE = 128;
73 // Field list that is used to display the items
74 const DISPLAY_FIELDLIST = [
75 'uid', 'id', 'parent', 'guid', 'network', 'gravity',
76 'uri-id', 'uri', 'thr-parent-id', 'thr-parent', 'parent-uri-id', 'parent-uri',
77 'commented', 'created', 'edited', 'received', 'verb', 'object-type', 'postopts', 'plink',
78 'wall', 'private', 'starred', 'origin', 'title', 'body', 'language',
79 'content-warning', 'location', 'coord', 'app', 'rendered-hash', 'rendered-html', 'object',
80 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid', 'item_id',
81 'author-id', 'author-link', 'author-name', 'author-avatar', 'author-network',
82 'owner-id', 'owner-link', 'owner-name', 'owner-avatar', 'owner-network',
83 'causer-id', 'causer-link', 'causer-name', 'causer-avatar', 'causer-contact-type',
84 'contact-id', 'contact-uid', 'contact-link', 'contact-name', 'contact-avatar',
85 'writable', 'self', 'cid', 'alias',
86 'event-id', 'event-created', 'event-edited', 'event-start', 'event-finish',
87 'event-summary', 'event-desc', 'event-location', 'event-type',
88 'event-nofinish', 'event-adjust', 'event-ignore', 'event-id',
89 'delivery_queue_count', 'delivery_queue_done', 'delivery_queue_failed'
92 // Field list that is used to deliver items via the protocols
93 const DELIVER_FIELDLIST = ['uid', 'id', 'parent', 'uri-id', 'uri', 'thr-parent', 'parent-uri', 'guid',
94 'parent-guid', 'created', 'edited', 'verb', 'object-type', 'object', 'target',
95 'private', 'title', 'body', 'location', 'coord', 'app',
96 'deleted', 'extid', 'post-type', 'gravity',
97 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
98 'author-id', 'author-link', 'owner-link', 'contact-uid',
99 'signed_text', 'network'];
101 // All fields in the item table
102 const ITEM_FIELDLIST = ['id', 'uid', 'parent', 'uri', 'parent-uri', 'thr-parent',
103 'guid', 'uri-id', 'parent-uri-id', 'thr-parent-id', 'vid',
104 'contact-id', 'type', 'wall', 'gravity', 'extid', 'psid',
105 'created', 'edited', 'commented', 'received', 'changed', 'verb',
106 'postopts', 'plink', 'resource-id', 'event-id', 'inform',
107 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid', 'post-type',
108 'private', 'pubmail', 'moderated', 'visible', 'starred', 'bookmark',
109 'unseen', 'deleted', 'origin', 'forum_mode', 'mention', 'global', 'network',
110 'title', 'content-warning', 'body', 'location', 'coord', 'app',
111 'rendered-hash', 'rendered-html', 'object-type', 'object', 'target-type', 'target',
112 'author-id', 'author-link', 'author-name', 'author-avatar', 'author-network',
113 'owner-id', 'owner-link', 'owner-name', 'owner-avatar', 'causer-id'];
115 // Item fiels that still are in use
116 const USED_FIELDLIST = ['id', 'parent', 'guid', 'uri', 'uri-id', 'parent-uri', 'parent-uri-id',
117 'thr-parent', 'thr-parent-id', 'created', 'edited', 'commented', 'received', 'changed',
118 'gravity', 'network', 'owner-id', 'author-id', 'causer-id', 'vid', 'extid', 'post-type',
119 'global', 'private', 'visible', 'moderated', 'deleted', 'uid', 'contact-id',
120 'wall', 'origin', 'pubmail', 'starred', 'unseen', 'mention', 'forum_mode', 'psid',
121 'event-id', 'type', 'bookmark'];
123 // Legacy item fields that aren't stored any more in the item table
124 const LEGACY_FIELDLIST = ['uri-hash', 'iaid', 'icid', 'attach',
125 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid', 'postopts',
126 'resource-id', 'inform', 'file', 'location', 'coord', 'tag', 'plink',
127 'title', 'content-warning', 'body', 'app', 'verb', 'object-type', 'object',
128 'target-type', 'target', 'author-name', 'author-link', 'author-avatar',
129 'owner-name', 'owner-link', 'owner-avatar', 'rendered-hash', 'rendered-html'];
131 // List of all verbs that don't need additional content data.
132 // Never reorder or remove entries from this list. Just add new ones at the end, if needed.
134 Activity::LIKE, Activity::DISLIKE,
135 Activity::ATTEND, Activity::ATTENDNO, Activity::ATTENDMAYBE,
144 * Update existing item entries
146 * @param array $fields The fields that are to be changed
147 * @param array $condition The condition for finding the item entries
149 * In the future we may have to change permissions as well.
150 * Then we had to add the user id as third parameter.
152 * A return value of "0" doesn't mean an error - but that 0 rows had been changed.
154 * @return integer|boolean number of affected rows - or "false" if there was an error
155 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
157 public static function update(array $fields, array $condition)
159 if (empty($condition) || empty($fields)) {
163 if (!empty($fields['verb'])) {
164 $fields['vid'] = Verb::getID($fields['verb']);
167 $rows = Post::update($fields, $condition);
168 if (is_bool($rows)) {
172 // We only need to call the line by line update for specific fields
173 if (empty($fields['body']) && empty($fields['file']) &&
174 empty($fields['attach']) && empty($fields['edited'])) {
178 Logger::info('Updating per single row method', ['fields' => $fields, 'condition' => $condition]);
180 $items = Post::select(['id', 'origin', 'uri-id', 'uid'], $condition);
184 while ($item = DBA::fetch($items)) {
185 if (!empty($fields['body'])) {
186 $content_fields = ['raw-body' => trim($fields['raw-body'] ?? $fields['body'])];
188 // Remove all media attachments from the body and store them in the post-media table
189 $content_fields['raw-body'] = Post\Media::insertFromBody($item['uri-id'], $content_fields['raw-body']);
190 $content_fields['raw-body'] = self::setHashtags($content_fields['raw-body']);
193 if (!empty($fields['file'])) {
194 Post\Category::storeTextByURIId($item['uri-id'], $item['uid'], $fields['file']);
197 if (!empty($fields['attach'])) {
198 Post\Media::insertFromAttachment($item['uri-id'], $fields['attach']);
201 // We only need to notfiy others when it is an original entry from us.
202 // Only call the notifier when the item has some content relevant change.
203 if ($item['origin'] && in_array('edited', array_keys($fields))) {
204 $notify_items[] = $item['id'];
210 foreach ($notify_items as $notify_item) {
211 Worker::add(PRIORITY_HIGH, "Notifier", Delivery::POST, $notify_item);
218 * Delete an item and notify others about it - if it was ours
220 * @param array $condition The condition for finding the item entries
221 * @param integer $priority Priority for the notification
222 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
224 public static function markForDeletion($condition, $priority = PRIORITY_HIGH)
226 $items = Post::select(['id'], $condition);
227 while ($item = Post::fetch($items)) {
228 self::markForDeletionById($item['id'], $priority);
234 * Delete an item for an user and notify others about it - if it was ours
236 * @param array $condition The condition for finding the item entries
237 * @param integer $uid User who wants to delete this item
238 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
240 public static function deleteForUser($condition, $uid)
246 $items = Post::select(['id', 'uid', 'uri-id'], $condition);
247 while ($item = Post::fetch($items)) {
248 if (in_array($item['uid'], [$uid, 0])) {
249 Post\User::update($item['uri-id'], $uid, ['hidden' => true], true);
250 Post\ThreadUser::update($item['uri-id'], $uid, ['hidden' => true], true);
253 if ($item['uid'] == $uid) {
254 self::markForDeletionById($item['id'], PRIORITY_HIGH);
255 } elseif ($item['uid'] != 0) {
256 Logger::log('Wrong ownership. Not deleting item ' . $item['id']);
263 * Mark an item for deletion, delete related data and notify others about it - if it was ours
265 * @param integer $item_id
266 * @param integer $priority Priority for the notification
268 * @return boolean success
269 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
271 public static function markForDeletionById($item_id, $priority = PRIORITY_HIGH)
273 Logger::info('Mark item for deletion by id', ['id' => $item_id, 'callstack' => System::callstack()]);
274 // locate item to be deleted
275 $fields = ['id', 'uri', 'uri-id', 'uid', 'parent', 'parent-uri-id', 'origin',
276 'deleted', 'resource-id', 'event-id',
277 'verb', 'object-type', 'object', 'target', 'contact-id', 'psid', 'gravity'];
278 $item = Post::selectFirst($fields, ['id' => $item_id]);
279 if (!DBA::isResult($item)) {
280 Logger::info('Item not found.', ['id' => $item_id]);
284 if ($item['deleted']) {
285 Logger::info('Item has already been marked for deletion.', ['id' => $item_id]);
289 $parent = Post::selectFirst(['origin'], ['id' => $item['parent']]);
290 if (!DBA::isResult($parent)) {
291 $parent = ['origin' => false];
294 // clean up categories and tags so they don't end up as orphans
295 Post\Category::deleteByURIId($item['uri-id'], $item['uid']);
298 * If item is a link to a photo resource, nuke all the associated photos
299 * (visitors will not have photo resources)
300 * This only applies to photos uploaded from the photos page. Photos inserted into a post do not
301 * generate a resource-id and therefore aren't intimately linked to the item.
303 /// @TODO: this should first check if photo is used elsewhere
304 if (strlen($item['resource-id'])) {
305 Photo::delete(['resource-id' => $item['resource-id'], 'uid' => $item['uid']]);
308 // If item is a link to an event, delete the event.
309 if (intval($item['event-id'])) {
310 Event::delete($item['event-id']);
313 // If item has attachments, drop them
314 $attachments = Post\Media::getByURIId($item['uri-id'], [Post\Media::DOCUMENT]);
315 foreach($attachments as $attachment) {
316 if (preg_match("|attach/(\d+)|", $attachment['url'], $matches)) {
317 Attach::delete(['id' => $matches[1], 'uid' => $item['uid']]);
321 // Set the item to "deleted"
322 $item_fields = ['deleted' => true, 'edited' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()];
323 Post::update($item_fields, ['id' => $item['id']]);
325 Post\Category::storeTextByURIId($item['uri-id'], $item['uid'], '');
327 if (!Post::exists(["`uri-id` = ? AND `uid` != 0 AND NOT `deleted`", $item['uri-id']])) {
328 self::markForDeletion(['uri-id' => $item['uri-id'], 'uid' => 0, 'deleted' => false], $priority);
331 Post\DeliveryData::delete($item['uri-id']);
333 // When the permission set will be used in photo and events as well,
334 // this query here needs to be extended.
335 // @todo Currently deactivated. We need the permission set in the deletion process.
336 // This is a reminder to add the removal somewhere else.
337 //if (!empty($item['psid']) && !self::exists(['psid' => $item['psid'], 'deleted' => false])) {
338 // DBA::delete('permissionset', ['id' => $item['psid']], ['cascade' => false]);
341 // If it's the parent of a comment thread, kill all the kids
342 if ($item['gravity'] == GRAVITY_PARENT) {
343 self::markForDeletion(['parent' => $item['parent'], 'deleted' => false], $priority);
346 // Is it our comment and/or our thread?
347 if (($item['origin'] || $parent['origin']) && ($item['uid'] != 0)) {
348 // When we delete the original post we will delete all existing copies on the server as well
349 self::markForDeletion(['uri-id' => $item['uri-id'], 'deleted' => false], $priority);
351 // send the notification upstream/downstream
353 Worker::add(['priority' => $priority, 'dont_fork' => true], "Notifier", Delivery::DELETION, intval($item['id']));
355 } elseif ($item['uid'] != 0) {
356 Post\User::update($item['uri-id'], $item['uid'], ['hidden' => true]);
357 Post\ThreadUser::update($item['uri-id'], $item['uid'], ['hidden' => true]);
360 Logger::info('Item has been marked for deletion.', ['id' => $item_id]);
365 private static function guid($item, $notify)
367 if (!empty($item['guid'])) {
368 return Strings::escapeTags(trim($item['guid']));
372 // We have to avoid duplicates. So we create the GUID in form of a hash of the plink or uri.
373 // We add the hash of our own host because our host is the original creator of the post.
374 $prefix_host = DI::baseUrl()->getHostname();
378 // We are only storing the post so we create a GUID from the original hostname.
379 if (!empty($item['author-link'])) {
380 $parsed = parse_url($item['author-link']);
381 if (!empty($parsed['host'])) {
382 $prefix_host = $parsed['host'];
386 if (empty($prefix_host) && !empty($item['plink'])) {
387 $parsed = parse_url($item['plink']);
388 if (!empty($parsed['host'])) {
389 $prefix_host = $parsed['host'];
393 if (empty($prefix_host) && !empty($item['uri'])) {
394 $parsed = parse_url($item['uri']);
395 if (!empty($parsed['host'])) {
396 $prefix_host = $parsed['host'];
400 // Is it in the format data@host.tld? - Used for mail contacts
401 if (empty($prefix_host) && !empty($item['author-link']) && strstr($item['author-link'], '@')) {
402 $mailparts = explode('@', $item['author-link']);
403 $prefix_host = array_pop($mailparts);
407 if (!empty($item['plink'])) {
408 $guid = self::guidFromUri($item['plink'], $prefix_host);
409 } elseif (!empty($item['uri'])) {
410 $guid = self::guidFromUri($item['uri'], $prefix_host);
412 $guid = System::createUUID(hash('crc32', $prefix_host));
418 private static function contactId($item)
420 if (!empty($item['contact-id']) && DBA::exists('contact', ['self' => true, 'id' => $item['contact-id']])) {
421 return $item['contact-id'];
422 } elseif (($item['gravity'] == GRAVITY_PARENT) && !empty($item['uid']) && !empty($item['contact-id']) && Contact::isSharing($item['contact-id'], $item['uid'])) {
423 return $item['contact-id'];
424 } elseif (!empty($item['uid']) && !Contact::isSharing($item['author-id'], $item['uid'])) {
425 return $item['author-id'];
426 } elseif (!empty($item['contact-id'])) {
427 return $item['contact-id'];
429 $contact_id = Contact::getIdForURL($item['author-link'], $item['uid']);
430 if (!empty($contact_id)) {
434 return $item['author-id'];
438 * Write an item array into a spool file to be inserted later.
439 * This command is called whenever there are issues storing an item.
441 * @param array $item The item fields that are to be inserted
444 private static function spool($orig_item)
446 // Now we store the data in the spool directory
447 // We use "microtime" to keep the arrival order and "mt_rand" to avoid duplicates
448 $file = 'item-' . round(microtime(true) * 10000) . '-' . mt_rand() . '.msg';
450 $spoolpath = get_spoolpath();
451 if ($spoolpath != "") {
452 $spool = $spoolpath . '/' . $file;
454 file_put_contents($spool, json_encode($orig_item));
455 Logger::warning("Item wasn't stored - Item was spooled into file", ['file' => $file]);
460 * Check if the item array is a duplicate
463 * @return boolean is it a duplicate?
465 private static function isDuplicate(array $item)
467 // Checking if there is already an item with the same guid
468 $condition = ['guid' => $item['guid'], 'network' => $item['network'], 'uid' => $item['uid']];
469 if (Post::exists($condition)) {
470 Logger::notice('Found already existing item', [
471 'guid' => $item['guid'],
472 'uid' => $item['uid'],
473 'network' => $item['network']
478 $condition = ['uri-id' => $item['uri-id'], 'uid' => $item['uid'],
479 'network' => [$item['network'], Protocol::DFRN]];
480 if (Post::exists($condition)) {
481 Logger::notice('duplicated item with the same uri found.', $item);
485 // On Friendica and Diaspora the GUID is unique
486 if (in_array($item['network'], [Protocol::DFRN, Protocol::DIASPORA])) {
487 $condition = ['guid' => $item['guid'], 'uid' => $item['uid']];
488 if (Post::exists($condition)) {
489 Logger::notice('duplicated item with the same guid found.', $item);
492 } elseif ($item['network'] == Protocol::OSTATUS) {
493 // Check for an existing post with the same content. There seems to be a problem with OStatus.
494 $condition = ["`body` = ? AND `network` = ? AND `created` = ? AND `contact-id` = ? AND `uid` = ?",
495 $item['body'], $item['network'], $item['created'], $item['contact-id'], $item['uid']];
496 if (Post::exists($condition)) {
497 Logger::notice('duplicated item with the same body found.', $item);
503 * Check for already added items.
504 * There is a timing issue here that sometimes creates double postings.
505 * An unique index would help - but the limitations of MySQL (maximum size of index values) prevent this.
507 if (($item['uid'] == 0) && Post::exists(['uri-id' => $item['uri-id'], 'uid' => 0])) {
508 Logger::notice('Global item already stored.', ['uri-id' => $item['uri-id'], 'network' => $item['network']]);
516 * Check if the item array is valid
519 * @return boolean item is valid
521 public static function isValid(array $item)
523 // When there is no content then we don't post it
524 if ($item['body'] . $item['title'] == '') {
525 Logger::notice('No body, no title.');
529 if (!empty($item['uid'])) {
530 $owner = User::getOwnerDataById($item['uid'], false);
532 Logger::notice('Missing item user owner data', ['uid' => $item['uid']]);
536 if ($owner['account_expired'] || $owner['account_removed']) {
537 Logger::notice('Item user has been deleted/expired/removed', ['uid' => $item['uid'], 'deleted' => $owner['deleted'], 'account_expired' => $owner['account_expired'], 'account_removed' => $owner['account_removed']]);
542 if (!empty($item['author-id']) && Contact::isBlocked($item['author-id'])) {
543 Logger::notice('Author is blocked node-wide', ['author-link' => $item['author-link'], 'item-uri' => $item['uri']]);
547 if (!empty($item['author-link']) && Network::isUrlBlocked($item['author-link'])) {
548 Logger::notice('Author server is blocked', ['author-link' => $item['author-link'], 'item-uri' => $item['uri']]);
552 if (!empty($item['owner-id']) && Contact::isBlocked($item['owner-id'])) {
553 Logger::notice('Owner is blocked node-wide', ['owner-link' => $item['owner-link'], 'item-uri' => $item['uri']]);
557 if (!empty($item['owner-link']) && Network::isUrlBlocked($item['owner-link'])) {
558 Logger::notice('Owner server is blocked', ['owner-link' => $item['owner-link'], 'item-uri' => $item['uri']]);
562 if (!empty($item['uid']) && !self::isAllowedByUser($item, $item['uid'])) {
566 if ($item['verb'] == Activity::FOLLOW) {
567 if (!$item['origin'] && ($item['author-id'] == Contact::getPublicIdByUserId($item['uid']))) {
568 // Our own follow request can be relayed to us. We don't store it to avoid notification chaos.
569 Logger::info("Follow: Don't store not origin follow request", ['parent-uri' => $item['parent-uri']]);
573 $condition = ['verb' => Activity::FOLLOW, 'uid' => $item['uid'],
574 'parent-uri' => $item['parent-uri'], 'author-id' => $item['author-id']];
575 if (Post::exists($condition)) {
576 // It happens that we receive multiple follow requests by the same author - we only store one.
577 Logger::info('Follow: Found existing follow request from author', ['author-id' => $item['author-id'], 'parent-uri' => $item['parent-uri']]);
586 * Check if the item array is too old
589 * @return boolean item is too old
591 public static function isTooOld(array $item)
593 // check for create date and expire time
594 $expire_interval = DI::config()->get('system', 'dbclean-expire-days', 0);
596 $user = DBA::selectFirst('user', ['expire'], ['uid' => $item['uid']]);
597 if (DBA::isResult($user) && ($user['expire'] > 0) && (($user['expire'] < $expire_interval) || ($expire_interval == 0))) {
598 $expire_interval = $user['expire'];
601 if (($expire_interval > 0) && !empty($item['created'])) {
602 $expire_date = time() - ($expire_interval * 86400);
603 $created_date = strtotime($item['created']);
604 if ($created_date < $expire_date) {
605 Logger::notice('Item created before expiration interval.', [
606 'created' => date('c', $created_date),
607 'expired' => date('c', $expire_date),
618 * Return the id of the given item array if it has been stored before
621 * @return integer item id
623 private static function getDuplicateID(array $item)
625 if (empty($item['network']) || in_array($item['network'], Protocol::FEDERATED)) {
626 $condition = ["`uri-id` = ? AND `uid` = ? AND `network` IN (?, ?, ?, ?)",
627 $item['uri-id'], $item['uid'],
628 Protocol::ACTIVITYPUB, Protocol::DIASPORA, Protocol::DFRN, Protocol::OSTATUS];
629 $existing = Post::selectFirst(['id', 'network'], $condition);
630 if (DBA::isResult($existing)) {
631 // We only log the entries with a different user id than 0. Otherwise we would have too many false positives
632 if ($item['uid'] != 0) {
633 Logger::notice('Item already existed for user', [
634 'uri-id' => $item['uri-id'],
635 'uid' => $item['uid'],
636 'network' => $item['network'],
637 'existing_id' => $existing["id"],
638 'existing_network' => $existing["network"]
642 return $existing["id"];
649 * Fetch top-level parent data for the given item array
652 * @return array item array with parent data
655 private static function getTopLevelParent(array $item)
657 $fields = ['uid', 'uri', 'parent-uri', 'id', 'deleted',
658 'uri-id', 'parent-uri-id',
659 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
660 'wall', 'private', 'forum_mode', 'origin', 'author-id'];
661 $condition = ['uri-id' => $item['thr-parent-id'], 'uid' => $item['uid']];
662 $params = ['order' => ['id' => false]];
663 $parent = Post::selectFirst($fields, $condition, $params);
665 if (!DBA::isResult($parent)) {
666 Logger::notice('item parent was not found - ignoring item', ['thr-parent-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
670 if ($parent['uri-id'] == $parent['parent-uri-id']) {
674 $condition = ['uri-id' => $parent['parent-uri-id'],
675 'parent-uri-id' => $parent['parent-uri-id'],
676 'uid' => $parent['uid']];
677 $params = ['order' => ['id' => false]];
678 $toplevel_parent = Post::selectFirst($fields, $condition, $params);
679 if (!DBA::isResult($toplevel_parent)) {
680 Logger::notice('item top level parent was not found - ignoring item', ['parent-uri-id' => $parent['parent-uri-id'], 'uid' => $parent['uid']]);
684 return $toplevel_parent;
688 * Get the gravity for the given item array
691 * @return integer gravity
693 private static function getGravity(array $item)
695 $activity = DI::activity();
697 if (isset($item['gravity'])) {
698 return intval($item['gravity']);
699 } elseif ($item['parent-uri-id'] === $item['uri-id']) {
700 return GRAVITY_PARENT;
701 } elseif ($activity->match($item['verb'], Activity::POST)) {
702 return GRAVITY_COMMENT;
703 } elseif ($activity->match($item['verb'], Activity::FOLLOW)) {
704 return GRAVITY_ACTIVITY;
705 } elseif ($activity->match($item['verb'], Activity::ANNOUNCE)) {
706 return GRAVITY_ACTIVITY;
708 Logger::info('Unknown gravity for verb', ['verb' => $item['verb']]);
709 return GRAVITY_UNKNOWN; // Should not happen
712 public static function insert($item, $notify = false, $dontcache = false)
716 $priority = PRIORITY_HIGH;
718 // If it is a posting where users should get notifications, then define it as wall posting
722 $item['network'] = Protocol::DFRN;
723 $item['protocol'] = Conversation::PARCEL_DIRECT;
724 $item['direction'] = Conversation::PUSH;
726 if (in_array($notify, PRIORITIES)) {
730 $item['network'] = trim(($item['network'] ?? '') ?: Protocol::PHANTOM);
733 $uid = intval($item['uid']);
735 $item['guid'] = self::guid($item, $notify);
736 $item['uri'] = substr(trim($item['uri'] ?? '') ?: self::newURI($item['uid'], $item['guid']), 0, 255);
739 $item['uri-id'] = ItemURI::insert(['uri' => $item['uri'], 'guid' => $item['guid']]);
741 // Backward compatibility: parent-uri used to be the direct parent uri.
742 // If it is provided without a thr-parent, it probably is the old behavior.
743 $item['thr-parent'] = trim($item['thr-parent'] ?? $item['parent-uri'] ?? $item['uri']);
744 $item['parent-uri'] = $item['thr-parent'];
746 $item['thr-parent-id'] = $item['parent-uri-id'] = ItemURI::getIdByURI($item['thr-parent']);
748 // Store conversation data
749 $item = Conversation::insert($item);
752 * Do we already have this item?
753 * We have to check several networks since Friendica posts could be repeated
754 * via OStatus (maybe Diasporsa as well)
756 $duplicate = self::getDuplicateID($item);
761 // Additional duplicate checks
762 /// @todo Check why the first duplication check returns the item number and the second a 0
763 if (self::isDuplicate($item)) {
767 $item['wall'] = intval($item['wall'] ?? 0);
768 $item['extid'] = trim($item['extid'] ?? '');
769 $item['author-name'] = trim($item['author-name'] ?? '');
770 $item['author-link'] = trim($item['author-link'] ?? '');
771 $item['author-avatar'] = trim($item['author-avatar'] ?? '');
772 $item['owner-name'] = trim($item['owner-name'] ?? '');
773 $item['owner-link'] = trim($item['owner-link'] ?? '');
774 $item['owner-avatar'] = trim($item['owner-avatar'] ?? '');
775 $item['received'] = (isset($item['received']) ? DateTimeFormat::utc($item['received']) : DateTimeFormat::utcNow());
776 $item['created'] = (isset($item['created']) ? DateTimeFormat::utc($item['created']) : $item['received']);
777 $item['edited'] = (isset($item['edited']) ? DateTimeFormat::utc($item['edited']) : $item['created']);
778 $item['changed'] = (isset($item['changed']) ? DateTimeFormat::utc($item['changed']) : $item['created']);
779 $item['commented'] = (isset($item['commented']) ? DateTimeFormat::utc($item['commented']) : $item['created']);
780 $item['title'] = substr(trim($item['title'] ?? ''), 0, 255);
781 $item['location'] = trim($item['location'] ?? '');
782 $item['coord'] = trim($item['coord'] ?? '');
783 $item['visible'] = (isset($item['visible']) ? intval($item['visible']) : 1);
784 $item['deleted'] = 0;
785 $item['post-type'] = ($item['post-type'] ?? '') ?: self::PT_ARTICLE;
786 $item['verb'] = trim($item['verb'] ?? '');
787 $item['object-type'] = trim($item['object-type'] ?? '');
788 $item['object'] = trim($item['object'] ?? '');
789 $item['target-type'] = trim($item['target-type'] ?? '');
790 $item['target'] = trim($item['target'] ?? '');
791 $item['plink'] = substr(trim($item['plink'] ?? ''), 0, 255);
792 $item['allow_cid'] = trim($item['allow_cid'] ?? '');
793 $item['allow_gid'] = trim($item['allow_gid'] ?? '');
794 $item['deny_cid'] = trim($item['deny_cid'] ?? '');
795 $item['deny_gid'] = trim($item['deny_gid'] ?? '');
796 $item['private'] = intval($item['private'] ?? self::PUBLIC);
797 $item['body'] = trim($item['body'] ?? '');
798 $item['raw-body'] = trim($item['raw-body'] ?? $item['body']);
799 $item['app'] = trim($item['app'] ?? '');
800 $item['origin'] = intval($item['origin'] ?? 0);
801 $item['postopts'] = trim($item['postopts'] ?? '');
802 $item['resource-id'] = trim($item['resource-id'] ?? '');
803 $item['event-id'] = intval($item['event-id'] ?? 0);
804 $item['inform'] = trim($item['inform'] ?? '');
805 $item['file'] = trim($item['file'] ?? '');
807 // Items cannot be stored before they happen ...
808 if ($item['created'] > DateTimeFormat::utcNow()) {
809 $item['created'] = DateTimeFormat::utcNow();
812 // We haven't invented time travel by now.
813 if ($item['edited'] > DateTimeFormat::utcNow()) {
814 $item['edited'] = DateTimeFormat::utcNow();
817 $item['plink'] = ($item['plink'] ?? '') ?: DI::baseUrl() . '/display/' . urlencode($item['guid']);
819 $item['gravity'] = self::getGravity($item);
821 $item['language'] = self::getLanguage($item);
823 $default = ['url' => $item['author-link'], 'name' => $item['author-name'],
824 'photo' => $item['author-avatar'], 'network' => $item['network']];
825 $item['author-id'] = ($item['author-id'] ?? 0) ?: Contact::getIdForURL($item['author-link'], 0, null, $default);
827 $default = ['url' => $item['owner-link'], 'name' => $item['owner-name'],
828 'photo' => $item['owner-avatar'], 'network' => $item['network']];
829 $item['owner-id'] = ($item['owner-id'] ?? 0) ?: Contact::getIdForURL($item['owner-link'], 0, null, $default);
831 $actor = ($item['gravity'] == GRAVITY_PARENT) ? $item['owner-id'] : $item['author-id'];
832 if (!$item['origin'] && ($item['uid'] != 0) && Contact::isSharing($actor, $item['uid'])) {
833 $item['post-type'] = self::PT_FOLLOWER;
836 // Ensure that there is an avatar cache
837 Contact::checkAvatarCache($item['author-id']);
838 Contact::checkAvatarCache($item['owner-id']);
840 // The contact-id should be set before "self::insert" was called - but there seems to be issues sometimes
841 $item["contact-id"] = self::contactId($item);
843 if (!empty($item['direction']) && in_array($item['direction'], [Conversation::PUSH, Conversation::RELAY]) &&
844 self::isTooOld($item)) {
845 Logger::info('Item is too old', ['item' => $item]);
849 if (!self::isValid($item)) {
853 if ($item['gravity'] !== GRAVITY_PARENT) {
854 $toplevel_parent = self::getTopLevelParent($item);
855 if (empty($toplevel_parent)) {
859 // If the thread originated from this node, we check the permission against the thread starter
860 $condition = ['uri-id' => $toplevel_parent['uri-id'], 'wall' => true];
861 $localTopLevelParent = Post::selectFirst(['uid'], $condition);
862 if (!empty($localTopLevelParent['uid']) && !self::isAllowedByUser($item, $localTopLevelParent['uid'])) {
866 $parent_id = $toplevel_parent['id'];
867 $item['parent-uri'] = $toplevel_parent['uri'];
868 $item['parent-uri-id'] = $toplevel_parent['uri-id'];
869 $item['deleted'] = $toplevel_parent['deleted'];
870 $item['allow_cid'] = $toplevel_parent['allow_cid'];
871 $item['allow_gid'] = $toplevel_parent['allow_gid'];
872 $item['deny_cid'] = $toplevel_parent['deny_cid'];
873 $item['deny_gid'] = $toplevel_parent['deny_gid'];
874 $parent_origin = $toplevel_parent['origin'];
876 // Don't federate received participation messages
877 if ($item['verb'] != Activity::FOLLOW) {
878 $item['wall'] = $toplevel_parent['wall'];
880 $item['wall'] = false;
884 * If the parent is private, force privacy for the entire conversation
885 * This differs from the above settings as it subtly allows comments from
886 * email correspondents to be private even if the overall thread is not.
888 if ($toplevel_parent['private']) {
889 $item['private'] = $toplevel_parent['private'];
893 * Edge case. We host a public forum that was originally posted to privately.
894 * The original author commented, but as this is a comment, the permissions
895 * weren't fixed up so it will still show the comment as private unless we fix it here.
897 if ((intval($toplevel_parent['forum_mode']) == 1) && ($toplevel_parent['private'] != self::PUBLIC)) {
898 $item['private'] = self::PUBLIC;
901 // If its a post that originated here then tag the thread as "mention"
902 if ($item['origin'] && $item['uid']) {
903 DBA::update('post-thread-user', ['mention' => true], ['uri-id' => $item['parent-uri-id'], 'uid' => $item['uid']]);
904 Logger::info('tagged thread as mention', ['parent' => $parent_id, 'parent-uri-id' => $item['parent-uri-id'], 'uid' => $item['uid']]);
907 // Update the contact relations
908 Contact\Relation::store($toplevel_parent['author-id'], $item['author-id'], $item['created']);
911 $parent_origin = $item['origin'];
914 $item['parent-uri-id'] = ItemURI::getIdByURI($item['parent-uri']);
915 $item['thr-parent-id'] = ItemURI::getIdByURI($item['thr-parent']);
917 // Is this item available in the global items (with uid=0)?
918 if ($item["uid"] == 0) {
919 $item["global"] = true;
921 // Set the global flag on all items if this was a global item entry
922 Post::update(['global' => true], ['uri-id' => $item['uri-id']]);
924 $item['global'] = Post::exists(['uid' => 0, 'uri-id' => $item['uri-id']]);
928 if (!empty($item["allow_cid"] . $item["allow_gid"] . $item["deny_cid"] . $item["deny_gid"])) {
929 $item["private"] = self::PRIVATE;
933 $item['edit'] = false;
934 $item['parent'] = $parent_id;
935 Hook::callAll('post_local', $item);
937 Hook::callAll('post_remote', $item);
940 if (!empty($item['cancel'])) {
941 Logger::log('post cancelled by addon.');
945 if (empty($item['vid']) && !empty($item['verb'])) {
946 $item['vid'] = Verb::getID($item['verb']);
949 // Creates or assigns the permission set
950 $item['psid'] = PermissionSet::getIdFromACL(
958 if ($item['verb'] == Activity::ANNOUNCE) {
959 self::setOwnerforResharedItem($item);
962 // Remove all media attachments from the body and store them in the post-media table
963 $item['raw-body'] = Post\Media::insertFromBody($item['uri-id'], $item['raw-body']);
964 $item['raw-body'] = self::setHashtags($item['raw-body']);
966 // Check for hashtags in the body and repair or add hashtag links
967 $item['body'] = self::setHashtags($item['body']);
969 // Fill the cache field
970 self::putInCache($item);
972 if (stristr($item['verb'], Activity::POKE)) {
973 $notify_type = Delivery::POKE;
975 $notify_type = Delivery::POST;
978 // Filling item related side tables
979 if (!empty($item['attach'])) {
980 Post\Media::insertFromAttachment($item['uri-id'], $item['attach']);
983 if ($item['gravity'] == GRAVITY_PARENT) {
984 Post\Thread::insert($item['uri-id'], $item);
987 if (!in_array($item['verb'], self::ACTIVITIES)) {
988 Post\Content::insert($item['uri-id'], $item);
991 // Diaspora signature
992 if (!empty($item['diaspora_signed_text'])) {
993 DBA::replace('diaspora-interaction', ['uri-id' => $item['uri-id'], 'interaction' => $item['diaspora_signed_text']]);
996 // Attached file links
997 if (!empty($item['file'])) {
998 Post\Category::storeTextByURIId($item['uri-id'], $item['uid'], $item['file']);
1001 // Delivery relevant data
1002 $delivery_data = Post\DeliveryData::extractFields($item);
1004 if (!empty($item['origin']) || !empty($item['wall']) || !empty($delivery_data['postopts']) || !empty($delivery_data['inform'])) {
1005 Post\DeliveryData::insert($item['uri-id'], $delivery_data);
1008 // Store tags from the body if this hadn't been handled previously in the protocol classes
1009 if (!Tag::existsForPost($item['uri-id'])) {
1010 Tag::storeFromBody($item['uri-id'], $item['body']);
1013 $id = Post\User::insert($item['uri-id'], $item['uid'], $item);
1015 Logger::notice('Post-User is already inserted - aborting', ['uid' => $item['uid'], 'uri-id' => $item['uri-id']]);
1019 if ($item['gravity'] == GRAVITY_PARENT) {
1020 $item['post-user-id'] = $id;
1021 Post\ThreadUser::insert($item['uri-id'], $item['uid'], $item);
1024 $condition = ['uri-id' => $item['uri-id'], 'uid' => $item['uid'], 'network' => $item['network']];
1025 if (Post::exists($condition)) {
1026 Logger::notice('Item is already inserted - aborting', $condition);
1030 // Remove all fields that aren't part of the item table
1031 $table_fields = DBStructure::getFieldsForTable('item', $item);
1033 // We remove all legacy fields that now are stored in other tables
1034 foreach (self::LEGACY_FIELDLIST as $field) {
1035 unset($table_fields[$field]);
1038 $result = DBA::insert('item', $table_fields);
1040 // When the item was successfully stored we fetch the ID of the item.
1041 $current_post = DBA::lastInsertId();
1043 if (empty($current_post) || !DBA::isResult($result)) {
1044 // On failure store the data into a spool file so that the "SpoolPost" worker can try again later.
1045 Logger::warning('Could not store item. it will be spooled', ['result' => $result, 'id' => $current_post]);
1046 self::spool($orig_item);
1050 Logger::notice('created item', ['id' => $current_post, 'uid' => $item['uid'], 'network' => $item['network'], 'uri-id' => $item['uri-id'], 'guid' => $item['guid']]);
1052 if (!$parent_id || ($item['gravity'] === GRAVITY_PARENT)) {
1053 $parent_id = $current_post;
1057 DBA::update('item', ['parent' => $parent_id], ['id' => $current_post]);
1059 $item['id'] = $current_post;
1060 $item['parent'] = $parent_id;
1062 // update the commented timestamp on the parent
1063 if (DI::config()->get('system', 'like_no_comment')) {
1064 // Update when it is a comment
1065 $update_commented = in_array($item['gravity'], [GRAVITY_PARENT, GRAVITY_COMMENT]);
1067 // Update when it isn't a follow or tag verb
1068 $update_commented = !in_array($item['verb'], [Activity::FOLLOW, Activity::TAG]);
1071 if ($update_commented) {
1072 Post::update(['commented' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
1074 Post::update(['changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
1077 // In that function we check if this is a forum post. Additionally we delete the item under certain circumstances
1078 if (self::tagDeliver($item['uid'], $current_post)) {
1079 // Get the user information for the logging
1080 $user = User::getById($uid);
1082 Logger::notice('Item had been deleted', ['id' => $current_post, 'user' => $uid, 'account-type' => $user['account-type']]);
1087 $posted_item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $current_post]);
1088 if (DBA::isResult($posted_item)) {
1090 Hook::callAll('post_local_end', $posted_item);
1092 Hook::callAll('post_remote_end', $posted_item);
1095 Logger::log('new item not found in DB, id ' . $current_post);
1099 if ($item['gravity'] === GRAVITY_PARENT) {
1100 self::addShadow($current_post);
1102 self::addShadowPost($current_post);
1105 self::updateContact($item);
1107 Post\UserNotification::setNotification($item['uri-id'], $item['uid']);
1109 check_user_notification($item['uri-id'], $item['uid']);
1110 //check_user_notification($current_post);
1112 // Distribute items to users who subscribed to their tags
1113 self::distributeByTags($item);
1115 // Automatically reshare the item if the "remote_self" option is selected
1116 self::autoReshare($item);
1118 $transmit = $notify || ($item['visible'] && ($parent_origin || $item['origin']));
1121 $transmit_item = Post::selectFirst(['verb', 'origin'], ['id' => $item['id']]);
1122 // Don't relay participation messages
1123 if (($transmit_item['verb'] == Activity::FOLLOW) &&
1124 (!$transmit_item['origin'] || ($item['author-id'] != Contact::getPublicIdByUserId($uid)))) {
1125 Logger::info('Participation messages will not be relayed', ['item' => $item['id'], 'uri' => $item['uri'], 'verb' => $transmit_item['verb']]);
1131 Worker::add(['priority' => $priority, 'dont_fork' => true], 'Notifier', $notify_type, $current_post);
1134 return $current_post;
1138 * Change the owner of a parent item if it had been shared by a forum
1140 * (public) forum posts in the new format consist of the regular post by the author
1141 * followed by an announce message sent from the forum account.
1142 * Changing the owner helps in grouping forum posts.
1144 * @param array $item
1147 private static function setOwnerforResharedItem(array $item)
1149 $parent = Post::selectFirst(['id', 'causer-id', 'owner-id', 'author-id', 'author-link', 'origin', 'post-type'],
1150 ['uri-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
1151 if (!DBA::isResult($parent)) {
1152 Logger::error('Parent not found', ['uri-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
1156 $author = Contact::selectFirst(['url', 'contact-type'], ['id' => $item['author-id']]);
1157 if (!DBA::isResult($author)) {
1158 Logger::error('Author not found', ['id' => $item['author-id']]);
1162 $cid = Contact::getIdForURL($author['url'], $item['uid']);
1163 if (empty($cid) || !Contact::isSharing($cid, $item['uid'])) {
1164 Logger::info('The resharer is not a following contact: quit', ['resharer' => $author['url'], 'uid' => $item['uid']]);
1168 if ($author['contact-type'] != Contact::TYPE_COMMUNITY) {
1169 if ($parent['post-type'] == self::PT_ANNOUNCEMENT) {
1170 Logger::info('The parent is already marked as announced: quit', ['causer' => $parent['causer-id'], 'owner' => $parent['owner-id'], 'author' => $parent['author-id'], 'uid' => $item['uid']]);
1174 if (Contact::isSharing($parent['owner-id'], $item['uid'])) {
1175 Logger::info('The resharer is no forum: quit', ['resharer' => $item['author-id'], 'owner' => $parent['owner-id'], 'author' => $parent['author-id'], 'uid' => $item['uid']]);
1178 self::update(['post-type' => self::PT_ANNOUNCEMENT, 'causer-id' => $item['author-id']], ['id' => $parent['id']]);
1179 Logger::info('Set announcement post-type', ['uri-id' => $item['uri-id'], 'thr-parent-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
1183 self::update(['owner-id' => $item['author-id'], 'contact-id' => $cid], ['id' => $parent['id']]);
1184 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]);
1188 * Distribute the given item to users who subscribed to their tags
1190 * @param array $item Processed item
1192 private static function distributeByTags(array $item)
1194 if (($item['uid'] != 0) || ($item['gravity'] != GRAVITY_PARENT) || !in_array($item['network'], Protocol::FEDERATED)) {
1198 $uids = Tag::getUIDListByURIId($item['uri-id']);
1199 foreach ($uids as $uid) {
1200 if (Contact::isSharing($item['author-id'], $uid)) {
1203 $fields = ['post-type' => self::PT_TAG];
1206 $stored = self::storeForUserByUriId($item['uri-id'], $uid, $fields);
1207 Logger::info('Stored item for users', ['uri-id' => $item['uri-id'], 'uid' => $uid, 'fields' => $fields, 'stored' => $stored]);
1212 * Distributes public items to the receivers
1214 * @param integer $itemid Item ID that should be added
1215 * @param string $signed_text Original text (for Diaspora signatures), JSON encoded.
1216 * @throws \Exception
1218 public static function distribute($itemid, $signed_text = '')
1220 $condition = ["`id` IN (SELECT `parent` FROM `post-view` WHERE `id` = ?)", $itemid];
1221 $parent = Post::selectFirst(['owner-id'], $condition);
1222 if (!DBA::isResult($parent)) {
1226 // Only distribute public items from native networks
1227 $condition = ['id' => $itemid, 'uid' => 0,
1228 'network' => array_merge(Protocol::FEDERATED ,['']),
1229 'visible' => true, 'deleted' => false, 'moderated' => false, 'private' => [self::PUBLIC, self::UNLISTED]];
1230 $item = Post::selectFirst(self::ITEM_FIELDLIST, $condition);
1231 if (!DBA::isResult($item)) {
1235 $origin = $item['origin'];
1239 /// @todo add a field "pcid" in the contact table that referrs to the public contact id.
1240 $owner = DBA::selectFirst('contact', ['url', 'nurl', 'alias'], ['id' => $parent['owner-id']]);
1241 if (!DBA::isResult($owner)) {
1245 $condition = ['nurl' => $owner['nurl'], 'rel' => [Contact::SHARING, Contact::FRIEND]];
1246 $contacts = DBA::select('contact', ['uid'], $condition);
1247 while ($contact = DBA::fetch($contacts)) {
1248 if ($contact['uid'] == 0) {
1252 $users[$contact['uid']] = $contact['uid'];
1254 DBA::close($contacts);
1256 $condition = ['alias' => $owner['url'], 'rel' => [Contact::SHARING, Contact::FRIEND]];
1257 $contacts = DBA::select('contact', ['uid'], $condition);
1258 while ($contact = DBA::fetch($contacts)) {
1259 if ($contact['uid'] == 0) {
1263 $users[$contact['uid']] = $contact['uid'];
1265 DBA::close($contacts);
1267 if (!empty($owner['alias'])) {
1268 $condition = ['nurl' => Strings::normaliseLink($owner['alias']), 'rel' => [Contact::SHARING, Contact::FRIEND]];
1269 $contacts = DBA::select('contact', ['uid'], $condition);
1270 while ($contact = DBA::fetch($contacts)) {
1271 if ($contact['uid'] == 0) {
1275 $users[$contact['uid']] = $contact['uid'];
1277 DBA::close($contacts);
1282 if ($item['uri-id'] != $item['parent-uri-id']) {
1283 $parents = Post::select(['uid', 'origin'], ["`uri-id` = ? AND `uid` != 0", $item['parent-uri-id']]);
1284 while ($parent = Post::fetch($parents)) {
1285 $users[$parent['uid']] = $parent['uid'];
1286 if ($parent['origin'] && !$origin) {
1287 $origin_uid = $parent['uid'];
1290 DBA::close($parents);
1293 foreach ($users as $uid) {
1294 if ($origin_uid == $uid) {
1295 $item['diaspora_signed_text'] = $signed_text;
1297 self::storeForUser($item, $uid);
1302 * Store a public item defined by their URI-ID for the given users
1304 * @param integer $uri_id URI-ID of the given item
1305 * @param integer $uid The user that will receive the item entry
1306 * @param array $fields Additional fields to be stored
1307 * @return integer stored item id
1309 public static function storeForUserByUriId(int $uri_id, int $uid, array $fields = [])
1311 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['uri-id' => $uri_id, 'uid' => 0]);
1312 if (!DBA::isResult($item)) {
1316 if (($item['private'] == self::PRIVATE) || !in_array($item['network'], Protocol::FEDERATED)) {
1317 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']]);
1321 $item['post-type'] = self::PT_STORED;
1323 $item = array_merge($item, $fields);
1325 $stored = self::storeForUser($item, $uid);
1326 Logger::info('Public item stored for user', ['uri-id' => $item['uri-id'], 'uid' => $uid, 'stored' => $stored]);
1331 * Store a public item array for the given users
1333 * @param array $item The item entry that will be stored
1334 * @param integer $uid The user that will receive the item entry
1335 * @return integer stored item id
1336 * @throws \Exception
1338 private static function storeForUser(array $item, int $uid)
1340 if (Post::exists(['uri-id' => $item['uri-id'], 'uid' => $uid])) {
1341 Logger::info('Item already exists', ['uri-id' => $item['uri-id'], 'uid' => $uid]);
1346 unset($item['parent']);
1347 unset($item['mention']);
1348 unset($item['starred']);
1349 unset($item['unseen']);
1350 unset($item['psid']);
1352 $item['uid'] = $uid;
1353 $item['origin'] = 0;
1356 if ($item['gravity'] == GRAVITY_PARENT) {
1357 $contact = Contact::getByURLForUser($item['owner-link'], $uid, false, ['id']);
1359 $contact = Contact::getByURLForUser($item['author-link'], $uid, false, ['id']);
1362 if (!empty($contact['id'])) {
1363 $item['contact-id'] = $contact['id'];
1365 // Shouldn't happen at all
1366 Logger::warning('contact-id could not be fetched', ['uid' => $uid, 'item' => $item]);
1367 $self = DBA::selectFirst('contact', ['id'], ['self' => true, 'uid' => $uid]);
1368 if (!DBA::isResult($self)) {
1369 // Shouldn't happen even less
1370 Logger::warning('self contact could not be fetched', ['uid' => $uid, 'item' => $item]);
1373 $item['contact-id'] = $self['id'];
1376 /// @todo Handling of "event-id"
1379 if ($item['gravity'] == GRAVITY_PARENT) {
1380 $contact = DBA::selectFirst('contact', [], ['id' => $item['contact-id'], 'self' => false]);
1381 if (DBA::isResult($contact)) {
1382 $notify = self::isRemoteSelf($contact, $item);
1386 $distributed = self::insert($item, $notify, true);
1388 if (!$distributed) {
1389 Logger::info("Distributed public item wasn't stored", ['uri-id' => $item['uri-id'], 'user' => $uid]);
1391 Logger::info('Distributed public item was stored', ['uri-id' => $item['uri-id'], 'user' => $uid, 'stored' => $distributed]);
1393 return $distributed;
1397 * Add a shadow entry for a given item id that is a thread starter
1399 * We store every public item entry additionally with the user id "0".
1400 * This is used for the community page and for the search.
1401 * It is planned that in the future we will store public item entries only once.
1403 * @param integer $itemid Item ID that should be added
1404 * @throws \Exception
1406 private static function addShadow($itemid)
1408 $fields = ['uid', 'private', 'moderated', 'visible', 'deleted', 'network', 'uri-id'];
1409 $condition = ['id' => $itemid, 'parent' => [0, $itemid]];
1410 $item = Post::selectFirst($fields, $condition);
1412 if (!DBA::isResult($item)) {
1416 // is it already a copy?
1417 if (($itemid == 0) || ($item['uid'] == 0)) {
1421 // Is it a visible public post?
1422 if (!$item["visible"] || $item["deleted"] || $item["moderated"] || ($item["private"] == self::PRIVATE)) {
1426 // is it an entry from a connector? Only add an entry for natively connected networks
1427 if (!in_array($item["network"], array_merge(Protocol::FEDERATED ,['']))) {
1431 if (Post::exists(['uri-id' => $item['uri-id'], 'uid' => 0])) {
1435 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $itemid]);
1437 if (DBA::isResult($item)) {
1438 // Preparing public shadow (removing user specific data)
1441 unset($item['parent']);
1442 unset($item['wall']);
1443 unset($item['mention']);
1444 unset($item['origin']);
1445 unset($item['starred']);
1446 unset($item['postopts']);
1447 unset($item['inform']);
1448 unset($item['post-type']);
1449 if ($item['uri-id'] == $item['parent-uri-id']) {
1450 $item['contact-id'] = $item['owner-id'];
1452 $item['contact-id'] = $item['author-id'];
1455 $public_shadow = self::insert($item, false, true);
1457 Logger::info('Stored public shadow', ['thread' => $itemid, 'id' => $public_shadow]);
1462 * Add a shadow entry for a given item id that is a comment
1464 * This function does the same like the function above - but for comments
1466 * @param integer $itemid Item ID that should be added
1467 * @throws \Exception
1469 private static function addShadowPost($itemid)
1471 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $itemid]);
1472 if (!DBA::isResult($item)) {
1476 // Is it a toplevel post?
1477 if ($item['gravity'] == GRAVITY_PARENT) {
1478 self::addShadow($itemid);
1482 // Is this a shadow entry?
1483 if ($item['uid'] == 0) {
1487 // Is there a shadow parent?
1488 if (!Post::exists(['uri-id' => $item['parent-uri-id'], 'uid' => 0])) {
1492 // Is there already a shadow entry?
1493 if (Post::exists(['uri-id' => $item['uri-id'], 'uid' => 0])) {
1497 // Save "origin" and "parent" state
1498 $origin = $item['origin'];
1499 $parent = $item['parent'];
1501 // Preparing public shadow (removing user specific data)
1504 unset($item['parent']);
1505 unset($item['wall']);
1506 unset($item['mention']);
1507 unset($item['origin']);
1508 unset($item['starred']);
1509 unset($item['postopts']);
1510 unset($item['inform']);
1511 unset($item['post-type']);
1512 $item['contact-id'] = Contact::getIdForURL($item['author-link']);
1514 $public_shadow = self::insert($item, false, true);
1516 Logger::info('Stored public shadow', ['uri-id' => $item['uri-id'], 'id' => $public_shadow]);
1518 // If this was a comment to a Diaspora post we don't get our comment back.
1519 // This means that we have to distribute the comment by ourselves.
1520 if ($origin && Post::exists(['id' => $parent, 'network' => Protocol::DIASPORA])) {
1521 self::distribute($public_shadow);
1526 * Adds a language specification in a "language" element of given $arr.
1527 * Expects "body" element to exist in $arr.
1529 * @param array $item
1530 * @return string detected language
1531 * @throws \Text_LanguageDetect_Exception
1533 private static function getLanguage(array $item)
1535 if (!in_array($item['gravity'], [GRAVITY_PARENT, GRAVITY_COMMENT]) || empty($item['body'])) {
1539 // Convert attachments to links
1540 $naked_body = BBCode::removeAttachment($item['body']);
1541 if (empty($naked_body)) {
1545 // Remove links and pictures
1546 $naked_body = BBCode::removeLinks($naked_body);
1548 // Convert the title and the body to plain text
1549 $naked_body = trim($item['title'] . "\n" . BBCode::toPlaintext($naked_body));
1551 // Remove possibly remaining links
1552 $naked_body = preg_replace(Strings::autoLinkRegEx(), '', $naked_body);
1554 if (empty($naked_body)) {
1558 $ld = new Language(DI::l10n()->getAvailableLanguages());
1559 $languages = $ld->detect($naked_body)->limit(0, 3)->close();
1560 if (is_array($languages)) {
1561 return json_encode($languages);
1567 public static function getLanguageMessage(array $item)
1569 $iso639 = new \Matriphe\ISO639\ISO639;
1571 $used_languages = '';
1572 foreach (json_decode($item['language'], true) as $language => $reliability) {
1573 $used_languages .= $iso639->languageByCode1($language) . ' (' . $language . "): " . number_format($reliability, 5) . '\n';
1575 $used_languages = DI::l10n()->t('Detected languages in this post:\n%s', $used_languages);
1576 return $used_languages;
1580 * Creates an unique guid out of a given uri
1582 * @param string $uri uri of an item entry
1583 * @param string $host hostname for the GUID prefix
1584 * @return string unique guid
1586 public static function guidFromUri($uri, $host)
1588 // Our regular guid routine is using this kind of prefix as well
1589 // We have to avoid that different routines could accidentally create the same value
1590 $parsed = parse_url($uri);
1592 // We use a hash of the hostname as prefix for the guid
1593 $guid_prefix = hash("crc32", $host);
1595 // Remove the scheme to make sure that "https" and "http" doesn't make a difference
1596 unset($parsed["scheme"]);
1598 // Glue it together to be able to make a hash from it
1599 $host_id = implode("/", $parsed);
1601 // We could use any hash algorithm since it isn't a security issue
1602 $host_hash = hash("ripemd128", $host_id);
1604 return $guid_prefix.$host_hash;
1608 * generate an unique URI
1610 * @param integer $uid User id
1611 * @param string $guid An existing GUID (Otherwise it will be generated)
1614 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1616 public static function newURI($uid, $guid = "")
1619 $guid = System::createUUID();
1622 return DI::baseUrl()->get() . '/objects/' . $guid;
1626 * Set "success_update" and "last-item" to the date of the last time we heard from this contact
1628 * This can be used to filter for inactive contacts.
1629 * Only do this for public postings to avoid privacy problems, since poco data is public.
1630 * Don't set this value if it isn't from the owner (could be an author that we don't know)
1632 * @param array $arr Contains the just posted item record
1633 * @throws \Exception
1635 private static function updateContact($arr)
1637 // Unarchive the author
1638 $contact = DBA::selectFirst('contact', [], ['id' => $arr["author-id"]]);
1639 if (DBA::isResult($contact)) {
1640 Contact::unmarkForArchival($contact);
1643 // Unarchive the contact if it's not our own contact
1644 $contact = DBA::selectFirst('contact', [], ['id' => $arr["contact-id"], 'self' => false]);
1645 if (DBA::isResult($contact)) {
1646 Contact::unmarkForArchival($contact);
1649 /// @todo On private posts we could obfuscate the date
1650 $update = ($arr['private'] != self::PRIVATE) || in_array($arr['network'], Protocol::FEDERATED);
1652 // Is it a forum? Then we don't care about the rules from above
1653 if (!$update && in_array($arr["network"], [Protocol::ACTIVITYPUB, Protocol::DFRN]) && ($arr["parent-uri-id"] === $arr["uri-id"])) {
1654 if (DBA::exists('contact', ['id' => $arr['contact-id'], 'forum' => true])) {
1660 // The "self" contact id is used (for example in the connectors) when the contact is unknown
1661 // So we have to ensure to only update the last item when it had been our own post,
1662 // or it had been done by a "regular" contact.
1663 if (!empty($arr['wall'])) {
1664 $condition = ['id' => $arr['contact-id']];
1666 $condition = ['id' => $arr['contact-id'], 'self' => false];
1668 DBA::update('contact', ['failed' => false, 'success_update' => $arr['received'], 'last-item' => $arr['received']], $condition);
1670 // Now do the same for the system wide contacts with uid=0
1671 if ($arr['private'] != self::PRIVATE) {
1672 DBA::update('contact', ['failed' => false, 'success_update' => $arr['received'], 'last-item' => $arr['received']],
1673 ['id' => $arr['owner-id']]);
1675 if ($arr['owner-id'] != $arr['author-id']) {
1676 DBA::update('contact', ['failed' => false, 'success_update' => $arr['received'], 'last-item' => $arr['received']],
1677 ['id' => $arr['author-id']]);
1682 public static function setHashtags($body)
1684 $body = BBCode::performWithEscapedTags($body, ['noparse', 'pre', 'code', 'img'], function ($body) {
1685 $tags = BBCode::getTags($body);
1688 if (!count($tags)) {
1692 // This sorting is important when there are hashtags that are part of other hashtags
1693 // Otherwise there could be problems with hashtags like #test and #test2
1694 // Because of this we are sorting from the longest to the shortest tag.
1695 usort($tags, function ($a, $b) {
1696 return strlen($b) <=> strlen($a);
1699 $URLSearchString = "^\[\]";
1701 // All hashtags should point to the home server if "local_tags" is activated
1702 if (DI::config()->get('system', 'local_tags')) {
1703 $body = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1704 "#[url=" . DI::baseUrl() . "/search?tag=$2]$2[/url]", $body);
1707 // mask hashtags inside of url, bookmarks and attachments to avoid urls in urls
1708 $body = preg_replace_callback("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1710 return ("[url=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/url]");
1713 $body = preg_replace_callback("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism",
1715 return ("[bookmark=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/bookmark]");
1718 $body = preg_replace_callback("/\[attachment (.*)\](.*?)\[\/attachment\]/ism",
1720 return ("[attachment " . str_replace("#", "#", $match[1]) . "]" . $match[2] . "[/attachment]");
1723 // Repair recursive urls
1724 $body = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1727 foreach ($tags as $tag) {
1728 if ((strpos($tag, '#') !== 0) || strpos($tag, '[url=') || strlen($tag) < 2 || $tag[1] == '#') {
1732 $basetag = str_replace('_', ' ', substr($tag, 1));
1733 $newtag = '#[url=' . DI::baseUrl() . '/search?tag=' . $basetag . ']' . $basetag . '[/url]';
1735 $body = str_replace($tag, $newtag, $body);
1738 // Convert back the masked hashtags
1739 $body = str_replace("#", "#", $body);
1748 * look for mention tags and setup a second delivery chain for forum/community posts if appropriate
1751 * @param int $item_id
1752 * @return boolean true if item was deleted, else false
1753 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1754 * @throws \ImagickException
1756 private static function tagDeliver($uid, $item_id)
1760 $user = DBA::selectFirst('user', [], ['uid' => $uid]);
1761 if (!DBA::isResult($user)) {
1765 $community_page = (($user['page-flags'] == User::PAGE_FLAGS_COMMUNITY) ? true : false);
1766 $prvgroup = (($user['page-flags'] == User::PAGE_FLAGS_PRVGROUP) ? true : false);
1768 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $item_id]);
1769 if (!DBA::isResult($item)) {
1773 $link = Strings::normaliseLink(DI::baseUrl() . '/profile/' . $user['nickname']);
1776 * Diaspora uses their own hardwired link URL in @-tags
1777 * instead of the one we supply with webfinger
1779 $dlink = Strings::normaliseLink(DI::baseUrl() . '/u/' . $user['nickname']);
1781 $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism', $item['body'], $matches, PREG_SET_ORDER);
1783 foreach ($matches as $mtch) {
1784 if (Strings::compareLink($link, $mtch[1]) || Strings::compareLink($dlink, $mtch[1])) {
1786 Logger::log('mention found: ' . $mtch[2]);
1792 $tags = Tag::getByURIId($item['uri-id'], [Tag::MENTION, Tag::EXCLUSIVE_MENTION]);
1793 foreach ($tags as $tag) {
1794 if (Strings::compareLink($link, $tag['url']) || Strings::compareLink($dlink, $tag['url'])) {
1796 DI::logger()->info('mention found in tag.', ['url' => $tag['url']]);
1802 if (($community_page || $prvgroup) &&
1803 !$item['wall'] && !$item['origin'] && ($item['gravity'] == GRAVITY_PARENT)) {
1804 Logger::info('Delete private group/communiy top-level item without mention', ['id' => $item_id, 'guid'=> $item['guid']]);
1805 DBA::delete('item', ['uri-id' => $item['uri-id'], 'uid' => $item['uid']]);
1806 Post\User::delete(['uri-id' => $item['uri-id'], 'uid' => $item['uid']]);
1812 $arr = ['item' => $item, 'user' => $user];
1814 Hook::callAll('tagged', $arr);
1816 if (!$community_page && !$prvgroup) {
1821 * tgroup delivery - setup a second delivery chain
1822 * prevent delivery looping - only proceed
1823 * if the message originated elsewhere and is a top-level post
1825 if ($item['wall'] || $item['origin'] || ($item['id'] != $item['parent'])) {
1829 // now change this copy of the post to a forum head message and deliver to all the tgroup members
1830 $self = DBA::selectFirst('contact', ['id', 'name', 'url', 'thumb'], ['uid' => $uid, 'self' => true]);
1831 if (!DBA::isResult($self)) {
1835 $owner_id = Contact::getIdForURL($self['url']);
1837 // also reset all the privacy bits to the forum default permissions
1839 $private = ($user['allow_cid'] || $user['allow_gid'] || $user['deny_cid'] || $user['deny_gid']) ? self::PRIVATE : self::PUBLIC;
1841 $psid = PermissionSet::getIdFromACL(
1849 $forum_mode = ($prvgroup ? 2 : 1);
1851 $fields = ['wall' => true, 'origin' => true, 'forum_mode' => $forum_mode, 'contact-id' => $self['id'],
1852 'owner-id' => $owner_id, 'private' => $private, 'psid' => $psid];
1853 self::update($fields, ['id' => $item_id]);
1855 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], 'Notifier', Delivery::POST, $item_id);
1857 self::performActivity($item_id, 'announce', $uid);
1863 * Automatically reshare the item if the "remote_self" option is selected
1865 * @param array $item
1868 private static function autoReshare(array $item)
1870 if ($item['gravity'] != GRAVITY_PARENT) {
1874 if (!DBA::exists('contact', ['id' => $item['contact-id'], 'remote_self' => Contact::MIRROR_NATIVE_RESHARE])) {
1878 if (!in_array($item['network'], [Protocol::ACTIVITYPUB, Protocol::DFRN])) {
1882 Logger::info('Automatically reshare item', ['uid' => $item['uid'], 'id' => $item['id'], 'guid' => $item['guid'], 'uri-id' => $item['uri-id']]);
1884 self::performActivity($item['id'], 'announce', $item['uid']);
1887 public static function isRemoteSelf($contact, &$datarray)
1889 if (!$contact['remote_self']) {
1893 // Prevent the forwarding of posts that are forwarded
1894 if (!empty($datarray["extid"]) && ($datarray["extid"] == Protocol::DFRN)) {
1895 Logger::info('Already forwarded');
1899 // Prevent to forward already forwarded posts
1900 if ($datarray["app"] == DI::baseUrl()->getHostname()) {
1901 Logger::info('Already forwarded (second test)');
1905 // Only forward posts
1906 if ($datarray["verb"] != Activity::POST) {
1907 Logger::info('No post');
1911 if (($contact['network'] != Protocol::FEED) && ($datarray['private'] == self::PRIVATE)) {
1912 Logger::info('Not public');
1916 $datarray2 = $datarray;
1917 Logger::info('remote-self start', ['contact' => $contact['url'], 'remote_self'=> $contact['remote_self'], 'item' => $datarray]);
1918 if ($contact['remote_self'] == Contact::MIRROR_OWN_POST) {
1919 $self = DBA::selectFirst('contact', ['id', 'name', 'url', 'thumb'],
1920 ['uid' => $contact['uid'], 'self' => true]);
1921 if (DBA::isResult($self)) {
1922 $datarray['contact-id'] = $self["id"];
1924 $datarray['owner-name'] = $self["name"];
1925 $datarray['owner-link'] = $self["url"];
1926 $datarray['owner-avatar'] = $self["thumb"];
1928 $datarray['author-name'] = $datarray['owner-name'];
1929 $datarray['author-link'] = $datarray['owner-link'];
1930 $datarray['author-avatar'] = $datarray['owner-avatar'];
1932 unset($datarray['edited']);
1934 unset($datarray['network']);
1935 unset($datarray['owner-id']);
1936 unset($datarray['author-id']);
1939 if ($contact['network'] != Protocol::FEED) {
1940 $old_uri_id = $datarray["uri-id"] ?? 0;
1941 $datarray["guid"] = System::createUUID();
1942 unset($datarray["plink"]);
1943 $datarray["uri"] = self::newURI($contact['uid'], $datarray["guid"]);
1944 $datarray["uri-id"] = ItemURI::getIdByURI($datarray["uri"]);
1945 $datarray["extid"] = Protocol::DFRN;
1946 $urlpart = parse_url($datarray2['author-link']);
1947 $datarray["app"] = $urlpart["host"];
1948 if (!empty($old_uri_id)) {
1949 Post\Media::copy($old_uri_id, $datarray["uri-id"]);
1952 unset($datarray["parent-uri"]);
1953 unset($datarray["thr-parent"]);
1955 $datarray['private'] = self::PUBLIC;
1959 if ($contact['network'] != Protocol::FEED) {
1960 // Store the original post
1961 $result = self::insert($datarray2);
1962 Logger::info('remote-self post original item', ['contact' => $contact['url'], 'result'=> $result, 'item' => $datarray2]);
1964 $datarray["app"] = "Feed";
1968 // Trigger automatic reactions for addons
1969 $datarray['api_source'] = true;
1971 // We have to tell the hooks who we are - this really should be improved
1972 $_SESSION['authenticated'] = true;
1973 $_SESSION['uid'] = $contact['uid'];
1975 return (bool)$result;
1982 * @param array $item
1985 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1986 * @throws \ImagickException
1988 public static function fixPrivatePhotos($s, $uid, $item = null, $cid = 0)
1990 if (DI::config()->get('system', 'disable_embedded')) {
1994 Logger::info('check for photos');
1995 $site = substr(DI::baseUrl(), strpos(DI::baseUrl(), '://'));
2000 $img_start = strpos($orig_body, '[img');
2001 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
2002 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
2004 while (($img_st_close !== false) && ($img_len !== false)) {
2005 $img_st_close++; // make it point to AFTER the closing bracket
2006 $image = substr($orig_body, $img_start + $img_st_close, $img_len);
2008 Logger::info('found photo', ['image' => $image]);
2010 if (stristr($image, $site . '/photo/')) {
2011 // Only embed locally hosted photos
2013 $i = basename($image);
2014 $i = str_replace(['.jpg', '.png', '.gif'], ['', '', ''], $i);
2015 $x = strpos($i, '-');
2018 $res = substr($i, $x + 1);
2019 $i = substr($i, 0, $x);
2020 $photo = Photo::getPhotoForUser($uid, $i, $res);
2021 if (DBA::isResult($photo)) {
2023 * Check to see if we should replace this photo link with an embedded image
2024 * 1. No need to do so if the photo is public
2025 * 2. If there's a contact-id provided, see if they're in the access list
2026 * for the photo. If so, embed it.
2027 * 3. Otherwise, if we have an item, see if the item permissions match the photo
2028 * permissions, regardless of order but first check to see if they're an exact
2029 * match to save some processing overhead.
2031 if (self::hasPermissions($photo)) {
2033 $recips = self::enumeratePermissions($photo);
2034 if (in_array($cid, $recips)) {
2038 if (self::samePermissions($uid, $item, $photo)) {
2044 $photo_img = Photo::getImageForPhoto($photo);
2045 // If a custom width and height were specified, apply before embedding
2046 if (preg_match("/\[img\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
2047 Logger::info('scaling photo');
2049 $width = intval($match[1]);
2050 $height = intval($match[2]);
2052 $photo_img->scaleDown(max($width, $height));
2055 $data = $photo_img->asString();
2056 $type = $photo_img->getType();
2058 Logger::info('replacing photo');
2059 $image = 'data:' . $type . ';base64,' . base64_encode($data);
2060 Logger::debug('replaced', ['image' => $image]);
2066 $new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/img]';
2067 $orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/img]'));
2068 if ($orig_body === false) {
2072 $img_start = strpos($orig_body, '[img');
2073 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
2074 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
2077 $new_body = $new_body . $orig_body;
2082 private static function hasPermissions($obj)
2084 return !empty($obj['allow_cid']) || !empty($obj['allow_gid']) ||
2085 !empty($obj['deny_cid']) || !empty($obj['deny_gid']);
2088 private static function samePermissions($uid, $obj1, $obj2)
2090 // first part is easy. Check that these are exactly the same.
2091 if (($obj1['allow_cid'] == $obj2['allow_cid'])
2092 && ($obj1['allow_gid'] == $obj2['allow_gid'])
2093 && ($obj1['deny_cid'] == $obj2['deny_cid'])
2094 && ($obj1['deny_gid'] == $obj2['deny_gid'])) {
2098 // This is harder. Parse all the permissions and compare the resulting set.
2099 $recipients1 = self::enumeratePermissions($obj1);
2100 $recipients2 = self::enumeratePermissions($obj2);
2104 /// @TODO Comparison of arrays, maybe use array_diff_assoc() here?
2105 return ($recipients1 == $recipients2);
2109 * Returns an array of contact-ids that are allowed to see this object
2111 * @param array $obj Item array with at least uid, allow_cid, allow_gid, deny_cid and deny_gid
2112 * @param bool $check_dead Prunes unavailable contacts from the result
2114 * @throws \Exception
2116 public static function enumeratePermissions(array $obj, bool $check_dead = false)
2118 $aclFormater = DI::aclFormatter();
2120 $allow_people = $aclFormater->expand($obj['allow_cid']);
2121 $allow_groups = Group::expand($obj['uid'], $aclFormater->expand($obj['allow_gid']), $check_dead);
2122 $deny_people = $aclFormater->expand($obj['deny_cid']);
2123 $deny_groups = Group::expand($obj['uid'], $aclFormater->expand($obj['deny_gid']), $check_dead);
2124 $recipients = array_unique(array_merge($allow_people, $allow_groups));
2125 $deny = array_unique(array_merge($deny_people, $deny_groups));
2126 $recipients = array_diff($recipients, $deny);
2130 public static function expire(int $uid, int $days, string $network = "", bool $force = false)
2132 if (!$uid || ($days < 1)) {
2136 $condition = ["`uid` = ? AND NOT `deleted` AND `gravity` = ?",
2137 $uid, GRAVITY_PARENT];
2140 * $expire_network_only = save your own wall posts
2141 * and just expire conversations started by others
2143 $expire_network_only = DI::pConfig()->get($uid, 'expire', 'network_only', false);
2145 if ($expire_network_only) {
2146 $condition[0] .= " AND NOT `wall`";
2149 if ($network != "") {
2150 $condition[0] .= " AND `network` = ?";
2151 $condition[] = $network;
2154 $condition[0] .= " AND `received` < UTC_TIMESTAMP() - INTERVAL ? DAY";
2155 $condition[] = $days;
2157 $items = Post::select(['resource-id', 'starred', 'type', 'id', 'post-type', 'uid', 'uri-id'], $condition);
2159 if (!DBA::isResult($items)) {
2163 $expire_items = DI::pConfig()->get($uid, 'expire', 'items', true);
2165 // Forcing expiring of items - but not notes and marked items
2167 $expire_items = true;
2170 $expire_notes = DI::pConfig()->get($uid, 'expire', 'notes', true);
2171 $expire_starred = DI::pConfig()->get($uid, 'expire', 'starred', true);
2172 $expire_photos = DI::pConfig()->get($uid, 'expire', 'photos', false);
2176 $priority = DI::config()->get('system', 'expire-notify-priority');
2178 while ($item = Post::fetch($items)) {
2179 // don't expire filed items
2180 if (DBA::exists('post-category', ['uri-id' => $item['uri-id'], 'uid' => $item['uid'], 'type' => Post\Category::FILE])) {
2184 // Only expire posts, not photos and photo comments
2186 if (!$expire_photos && strlen($item['resource-id'])) {
2188 } elseif (!$expire_starred && intval($item['starred'])) {
2190 } elseif (!$expire_notes && (($item['type'] == 'note') || ($item['post-type'] == self::PT_PERSONAL_NOTE))) {
2192 } elseif (!$expire_items && ($item['type'] != 'note') && ($item['post-type'] != self::PT_PERSONAL_NOTE)) {
2196 self::markForDeletionById($item['id'], $priority);
2201 Logger::log('User ' . $uid . ": expired $expired items; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
2204 public static function firstPostDate($uid, $wall = false)
2206 $condition = ['gravity' => GRAVITY_PARENT, 'uid' => $uid, 'wall' => $wall, 'deleted' => false, 'visible' => true, 'moderated' => false];
2207 $params = ['order' => ['received' => false]];
2208 $thread = Post::selectFirst(['received'], $condition, $params);
2209 if (DBA::isResult($thread)) {
2210 return substr(DateTimeFormat::local($thread['received']), 0, 10);
2216 * add/remove activity to an item
2218 * Toggle activities as like,dislike,attend of an item
2220 * @param int $item_id
2221 * @param string $verb
2222 * Activity verb. One of
2223 * like, unlike, dislike, undislike, attendyes, unattendyes,
2224 * attendno, unattendno, attendmaybe, unattendmaybe,
2225 * announce, unannouce
2227 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2228 * @throws \ImagickException
2229 * @hook 'post_local_end'
2231 * 'post_id' => ID of posted item
2233 public static function performActivity(int $item_id, string $verb, int $uid)
2239 Logger::notice('Start create activity', ['verb' => $verb, 'item' => $item_id, 'user' => $uid]);
2241 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $item_id]);
2242 if (!DBA::isResult($item)) {
2243 Logger::log('like: unknown item ' . $item_id);
2247 $uri_id = $item['uri-id'];
2249 if (!in_array($item['uid'], [0, $uid])) {
2253 if (!Post::exists(['uri-id' => $item['parent-uri-id'], 'uid' => $uid])) {
2254 $stored = self::storeForUserByUriId($item['parent-uri-id'], $uid);
2255 if (($item['parent-uri-id'] == $item['uri-id']) && !empty($stored)) {
2256 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $stored]);
2257 if (!DBA::isResult($item)) {
2258 Logger::info('Could not fetch just created item - should not happen', ['stored' => $stored, 'uid' => $uid, 'uri-id' => $uri_id]);
2264 // Retrieves the local post owner
2265 $owner = User::getOwnerDataById($uid);
2266 if (empty($owner)) {
2267 Logger::info('Empty owner for user', ['uid' => $uid]);
2271 // Retrieve the current logged in user's public contact
2272 $author_id = Contact::getIdForURL($owner['url']);
2273 if (empty($author_id)) {
2274 Logger::info('Empty public contact');
2282 $activity = Activity::LIKE;
2286 $activity = Activity::DISLIKE;
2290 $activity = Activity::ATTEND;
2294 $activity = Activity::ATTENDNO;
2297 case 'unattendmaybe':
2298 $activity = Activity::ATTENDMAYBE;
2302 $activity = Activity::FOLLOW;
2306 $activity = Activity::ANNOUNCE;
2309 Logger::notice('unknown verb', ['verb' => $verb, 'item' => $item_id]);
2313 $mode = Strings::startsWith($verb, 'un') ? 'delete' : 'create';
2315 // Enable activity toggling instead of on/off
2316 $event_verb_flag = $activity === Activity::ATTEND || $activity === Activity::ATTENDNO || $activity === Activity::ATTENDMAYBE;
2318 // Look for an existing verb row
2319 // Event participation activities are mutually exclusive, only one of them can exist at all times.
2320 if ($event_verb_flag) {
2321 $verbs = [Activity::ATTEND, Activity::ATTENDNO, Activity::ATTENDMAYBE];
2323 // Translate to the index based activity index
2325 foreach ($verbs as $verb) {
2326 $vids[] = Verb::getID($verb);
2329 $vids = Verb::getID($activity);
2332 $condition = ['vid' => $vids, 'deleted' => false, 'gravity' => GRAVITY_ACTIVITY,
2333 'author-id' => $author_id, 'uid' => $item['uid'], 'thr-parent-id' => $uri_id];
2334 $like_item = Post::selectFirst(['id', 'guid', 'verb'], $condition);
2336 if (DBA::isResult($like_item)) {
2338 * Truth table for existing activities
2340 * | Inputs || Outputs |
2341 * |----------------------------||-------------------|
2342 * | Mode | Event | Same verb || Delete? | Return? |
2343 * |--------|-------|-----------||---------|---------|
2344 * | create | Yes | Yes || No | Yes |
2345 * | create | Yes | No || Yes | No |
2346 * | create | No | Yes || No | Yes |
2347 * | create | No | No || N/A†|
2348 * | delete | Yes | Yes || Yes | N/A‡ |
2349 * | delete | Yes | No || No | N/A‡ |
2350 * | delete | No | Yes || Yes | N/A‡ |
2351 * | delete | No | No || N/A†|
2352 * |--------|-------|-----------||---------|---------|
2353 * | A | B | C || A xor C | !B or C |
2355 * †Can't happen: It's impossible to find an existing non-event activity without
2356 * the same verb because we are only looking for this single verb.
2358 * ‡ The "mode = delete" is returning early whether an existing activity was found or not.
2360 if ($mode == 'create' xor $like_item['verb'] == $activity) {
2361 self::markForDeletionById($like_item['id']);
2364 if (!$event_verb_flag || $like_item['verb'] == $activity) {
2369 // No need to go further if we aren't creating anything
2370 if ($mode == 'delete') {
2374 $objtype = $item['resource-id'] ? Activity\ObjectType::IMAGE : Activity\ObjectType::NOTE;
2377 'guid' => System::createUUID(),
2378 'uri' => self::newURI($item['uid']),
2379 'uid' => $item['uid'],
2380 'contact-id' => $owner['id'],
2381 'wall' => $item['wall'],
2383 'network' => Protocol::DFRN,
2384 'protocol' => Conversation::PARCEL_DIRECT,
2385 'direction' => Conversation::PUSH,
2386 'gravity' => GRAVITY_ACTIVITY,
2387 'parent' => $item['id'],
2388 'thr-parent' => $item['uri'],
2389 'owner-id' => $author_id,
2390 'author-id' => $author_id,
2391 'body' => $activity,
2392 'verb' => $activity,
2393 'object-type' => $objtype,
2394 'allow_cid' => $item['allow_cid'],
2395 'allow_gid' => $item['allow_gid'],
2396 'deny_cid' => $item['deny_cid'],
2397 'deny_gid' => $item['deny_gid'],
2402 $signed = Diaspora::createLikeSignature($uid, $new_item);
2403 if (!empty($signed)) {
2404 $new_item['diaspora_signed_text'] = json_encode($signed);
2407 $new_item_id = self::insert($new_item);
2409 // If the parent item isn't visible then set it to visible
2410 if (!$item['visible']) {
2411 self::update(['visible' => true], ['id' => $item['id']]);
2414 $new_item['id'] = $new_item_id;
2416 Hook::callAll('post_local_end', $new_item);
2422 * Fetch the SQL condition for the given user id
2424 * @param integer $owner_id User ID for which the permissions should be fetched
2425 * @return array condition
2427 public static function getPermissionsConditionArrayByUserId(int $owner_id)
2429 $local_user = local_user();
2430 $remote_user = Session::getRemoteContactID($owner_id);
2432 // default permissions - anonymous user
2433 $condition = ["`private` != ?", self::PRIVATE];
2435 if ($local_user && ($local_user == $owner_id)) {
2436 // Profile owner - everything is visible
2438 } elseif ($remote_user) {
2439 // Authenticated visitor - fetch the matching permissionsets
2440 $set = PermissionSet::get($owner_id, $remote_user);
2442 $condition = ["(`private` != ? OR (`private` = ? AND `wall`
2443 AND `psid` IN (" . implode(', ', array_fill(0, count($set), '?')) . ")))",
2444 self::PRIVATE, self::PRIVATE];
2445 $condition = array_merge($condition, $set);
2453 * Get a permission SQL string for the given user
2455 * @param int $owner_id
2456 * @param string $table
2459 public static function getPermissionsSQLByUserId(int $owner_id, string $table = '')
2461 $local_user = local_user();
2462 $remote_user = Session::getRemoteContactID($owner_id);
2464 if (!empty($table)) {
2465 $table = DBA::quoteIdentifier($table) . '.';
2469 * Construct permissions
2471 * default permissions - anonymous user
2473 $sql = sprintf(" AND " . $table . "`private` != %d", self::PRIVATE);
2475 // Profile owner - everything is visible
2476 if ($local_user && ($local_user == $owner_id)) {
2478 } elseif ($remote_user) {
2480 * Authenticated visitor. Unless pre-verified,
2481 * check that the contact belongs to this $owner_id
2482 * and load the groups the visitor belongs to.
2483 * If pre-verified, the caller is expected to have already
2484 * done this and passed the groups into this function.
2486 $set = PermissionSet::get($owner_id, $remote_user);
2489 $sql_set = sprintf(" OR (" . $table . "`private` = %d AND " . $table . "`wall` AND " . $table . "`psid` IN (", self::PRIVATE) . implode(',', $set) . "))";
2494 $sql = sprintf(" AND (" . $table . "`private` != %d", self::PRIVATE) . $sql_set . ")";
2501 * get translated item type
2506 public static function postType($item)
2508 if (!empty($item['event-id'])) {
2509 return DI::l10n()->t('event');
2510 } elseif (!empty($item['resource-id'])) {
2511 return DI::l10n()->t('photo');
2512 } elseif ($item['gravity'] == GRAVITY_ACTIVITY) {
2513 return DI::l10n()->t('activity');
2514 } elseif ($item['gravity'] == GRAVITY_COMMENT) {
2515 return DI::l10n()->t('comment');
2518 return DI::l10n()->t('post');
2522 * Sets the "rendered-html" field of the provided item
2524 * Body is preserved to avoid side-effects as we modify it just-in-time for spoilers and private image links
2526 * @param array $item
2527 * @param bool $update
2529 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2530 * @todo Remove reference, simply return "rendered-html" and "rendered-hash"
2532 public static function putInCache(&$item, $update = false)
2534 // Save original body to prevent addons to modify it
2535 $body = $item['body'];
2537 $rendered_hash = $item['rendered-hash'] ?? '';
2538 $rendered_html = $item['rendered-html'] ?? '';
2540 if ($rendered_hash == ''
2541 || $rendered_html == ''
2542 || $rendered_hash != hash('md5', BBCode::VERSION . '::' . $body)
2543 || DI::config()->get('system', 'ignore_cache')
2545 self::addRedirToImageTags($item);
2547 $item['rendered-html'] = BBCode::convert($item['body']);
2548 $item['rendered-hash'] = hash('md5', BBCode::VERSION . '::' . $body);
2550 $hook_data = ['item' => $item, 'rendered-html' => $item['rendered-html'], 'rendered-hash' => $item['rendered-hash']];
2551 Hook::callAll('put_item_in_cache', $hook_data);
2552 $item['rendered-html'] = $hook_data['rendered-html'];
2553 $item['rendered-hash'] = $hook_data['rendered-hash'];
2556 // Force an update if the generated values differ from the existing ones
2557 if ($rendered_hash != $item['rendered-hash']) {
2561 // Only compare the HTML when we forcefully ignore the cache
2562 if (DI::config()->get('system', 'ignore_cache') && ($rendered_html != $item['rendered-html'])) {
2566 if ($update && !empty($item['id'])) {
2569 'rendered-html' => $item['rendered-html'],
2570 'rendered-hash' => $item['rendered-hash']
2572 ['id' => $item['id']]
2577 $item['body'] = $body;
2581 * Find any non-embedded images in private items and add redir links to them
2583 * @param array &$item The field array of an item row
2585 private static function addRedirToImageTags(array &$item)
2590 $cnt = preg_match_all('|\[img\](http[^\[]*?/photo/[a-fA-F0-9]+?(-[0-9]\.[\w]+?)?)\[\/img\]|', $item['body'], $matches, PREG_SET_ORDER);
2592 foreach ($matches as $mtch) {
2593 if (strpos($mtch[1], '/redir') !== false) {
2597 if ((local_user() == $item['uid']) && ($item['private'] == self::PRIVATE) && ($item['contact-id'] != $app->contact['id']) && ($item['network'] == Protocol::DFRN)) {
2598 $img_url = 'redir/' . $item['contact-id'] . '?url=' . urlencode($mtch[1]);
2599 $item['body'] = str_replace($mtch[0], '[img]' . $img_url . '[/img]', $item['body']);
2606 * Given an item array, convert the body element from bbcode to html and add smilie icons.
2607 * If attach is true, also add icons for item attachments.
2609 * @param array $item
2610 * @param boolean $attach
2611 * @param boolean $is_preview
2612 * @return string item body html
2613 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2614 * @throws \ImagickException
2615 * @hook prepare_body_init item array before any work
2616 * @hook prepare_body_content_filter ('item'=>item array, 'filter_reasons'=>string array) before first bbcode to html
2617 * @hook prepare_body ('item'=>item array, 'html'=>body string, 'is_preview'=>boolean, 'filter_reasons'=>string array) after first bbcode to html
2618 * @hook prepare_body_final ('item'=>item array, 'html'=>body string) after attach icons and blockquote special case handling (spoiler, author)
2620 public static function prepareBody(array &$item, $attach = false, $is_preview = false)
2623 Hook::callAll('prepare_body_init', $item);
2625 // In order to provide theme developers more possibilities, event items
2626 // are treated differently.
2627 if ($item['object-type'] === Activity\ObjectType::EVENT && isset($item['event-id'])) {
2628 $ev = Event::getItemHTML($item);
2632 $tags = Tag::populateFromItem($item);
2634 $item['tags'] = $tags['tags'];
2635 $item['hashtags'] = $tags['hashtags'];
2636 $item['mentions'] = $tags['mentions'];
2638 // Compile eventual content filter reasons
2639 $filter_reasons = [];
2640 if (!$is_preview && public_contact() != $item['author-id']) {
2641 if (!empty($item['content-warning']) && (!local_user() || !DI::pConfig()->get(local_user(), 'system', 'disable_cw', false))) {
2642 $filter_reasons[] = DI::l10n()->t('Content warning: %s', $item['content-warning']);
2647 'filter_reasons' => $filter_reasons
2649 Hook::callAll('prepare_body_content_filter', $hook_data);
2650 $filter_reasons = $hook_data['filter_reasons'];
2654 // Update the cached values if there is no "zrl=..." on the links.
2655 $update = (!Session::isAuthenticated() && ($item["uid"] == 0));
2657 // Or update it if the current viewer is the intented viewer.
2658 if (($item["uid"] == local_user()) && ($item["uid"] != 0)) {
2662 self::putInCache($item, $update);
2663 $s = $item["rendered-html"];
2668 'preview' => $is_preview,
2669 'filter_reasons' => $filter_reasons
2671 Hook::callAll('prepare_body', $hook_data);
2672 $s = $hook_data['html'];
2676 // Replace the blockquotes with quotes that are used in mails.
2677 $mailquote = '<blockquote type="cite" class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">';
2678 $s = str_replace(['<blockquote>', '<blockquote class="spoiler">', '<blockquote class="author">'], [$mailquote, $mailquote, $mailquote], $s);
2684 foreach (Post\Media::getByURIId($item['uri-id'], [Post\Media::DOCUMENT, Post\Media::TORRENT, Post\Media::UNKNOWN]) as $attachment) {
2685 $mime = $attachment['mimetype'];
2687 $the_url = Contact::magicLinkById($item['author-id'], $attachment['url']);
2689 if (strpos($mime, 'video') !== false) {
2692 DI::page()['htmlhead'] .= Renderer::replaceMacros(Renderer::getMarkupTemplate('videos_head.tpl'));
2695 $as .= Renderer::replaceMacros(Renderer::getMarkupTemplate('video_top.tpl'), [
2697 'id' => $item['author-id'],
2698 'title' => DI::l10n()->t('View Video'),
2705 $filetype = strtolower(substr($mime, 0, strpos($mime, '/')));
2707 $filesubtype = strtolower(substr($mime, strpos($mime, '/') + 1));
2708 $filesubtype = str_replace('.', '-', $filesubtype);
2711 $filesubtype = 'unkn';
2714 $title = Strings::escapeHtml(trim(($attachment['description'] ?? '') ?: $attachment['url']));
2715 $title .= ' ' . ($attachment['size'] ?? 0) . ' ' . DI::l10n()->t('bytes');
2717 $icon = '<div class="attachtype icon s22 type-' . $filetype . ' subtype-' . $filesubtype . '"></div>';
2718 $as .= '<a href="' . strip_tags($the_url) . '" title="' . $title . '" class="attachlink" target="_blank" rel="noopener noreferrer" >' . $icon . '</a>';
2722 $s .= '<div class="body-attach">'.$as.'<div class="clear"></div></div>';
2726 if (strpos($s, '<div class="map">') !== false && !empty($item['coord'])) {
2727 $x = Map::byCoordinates(trim($item['coord']));
2729 $s = preg_replace('/\<div class\=\"map\"\>/', '$0' . $x, $s);
2733 // Replace friendica image url size with theme preference.
2734 if (!empty($a->theme_info['item_image_size'])) {
2735 $ps = $a->theme_info['item_image_size'];
2736 $s = preg_replace('|(<img[^>]+src="[^"]+/photo/[0-9a-f]+)-[0-9]|', "$1-" . $ps, $s);
2739 $s = HTML::applyContentFilter($s, $filter_reasons);
2741 $hook_data = ['item' => $item, 'html' => $s];
2742 Hook::callAll('prepare_body_final', $hook_data);
2744 return $hook_data['html'];
2748 * get private link for item
2750 * @param array $item
2751 * @return boolean|array False if item has not plink, otherwise array('href'=>plink url, 'title'=>translated title)
2752 * @throws \Exception
2754 public static function getPlink($item)
2758 'href' => "display/" . $item['guid'],
2759 'orig' => "display/" . $item['guid'],
2760 'title' => DI::l10n()->t('View on separate page'),
2761 'orig_title' => DI::l10n()->t('view on separate page'),
2764 if (!empty($item['plink'])) {
2765 $ret["href"] = DI::baseUrl()->remove($item['plink']);
2766 $ret["title"] = DI::l10n()->t('link to source');
2768 } elseif (!empty($item['plink']) && ($item['private'] != self::PRIVATE)) {
2770 'href' => $item['plink'],
2771 'orig' => $item['plink'],
2772 'title' => DI::l10n()->t('link to source'),
2782 * Is the given item array a post that is sent as starting post to a forum?
2784 * @param array $item
2785 * @param array $owner
2787 * @return boolean "true" when it is a forum post
2789 public static function isForumPost(array $item, array $owner = [])
2791 if (empty($owner)) {
2792 $owner = User::getOwnerDataById($item['uid']);
2793 if (empty($owner)) {
2798 if (($item['author-id'] == $item['owner-id']) ||
2799 ($owner['id'] == $item['contact-id']) ||
2800 ($item['uri-id'] != $item['parent-uri-id']) ||
2805 return Contact::isForum($item['contact-id']);
2809 * Search item id for given URI or plink
2811 * @param string $uri
2812 * @param integer $uid
2814 * @return integer item id
2816 public static function searchByLink($uri, $uid = 0)
2818 $ssl_uri = str_replace('http://', 'https://', $uri);
2819 $uris = [$uri, $ssl_uri, Strings::normaliseLink($uri)];
2821 $item = Post::selectFirst(['id'], ['uri' => $uris, 'uid' => $uid]);
2822 if (DBA::isResult($item)) {
2826 $item = Post::selectFirst(['id'], ['plink' => $uris, 'uid' => $uid]);
2827 if (DBA::isResult($item)) {
2835 * Return the URI for a link to the post
2837 * @param string $uri URI or link to post
2839 * @return string URI
2841 public static function getURIByLink(string $uri)
2843 $ssl_uri = str_replace('http://', 'https://', $uri);
2844 $uris = [$uri, $ssl_uri, Strings::normaliseLink($uri)];
2846 $item = Post::selectFirst(['uri'], ['uri' => $uris]);
2847 if (DBA::isResult($item)) {
2848 return $item['uri'];
2851 $item = Post::selectFirst(['uri'], ['plink' => $uris]);
2852 if (DBA::isResult($item)) {
2853 return $item['uri'];
2860 * Fetches item for given URI or plink
2862 * @param string $uri
2863 * @param integer $uid
2865 * @return integer item id
2867 public static function fetchByLink(string $uri, int $uid = 0)
2869 Logger::info('Trying to fetch link', ['uid' => $uid, 'uri' => $uri]);
2870 $item_id = self::searchByLink($uri, $uid);
2871 if (!empty($item_id)) {
2872 Logger::info('Link found', ['uid' => $uid, 'uri' => $uri, 'id' => $item_id]);
2876 if ($fetched_uri = ActivityPub\Processor::fetchMissingActivity($uri)) {
2877 $item_id = self::searchByLink($fetched_uri, $uid);
2879 $item_id = Diaspora::fetchByURL($uri);
2882 if (!empty($item_id)) {
2883 Logger::info('Link fetched', ['uid' => $uid, 'uri' => $uri, 'id' => $item_id]);
2887 Logger::info('Link not found', ['uid' => $uid, 'uri' => $uri]);
2892 * Return share data from an item array (if the item is shared item)
2893 * We are providing the complete Item array, because at some time in the future
2894 * we hopefully will define these values not in the body anymore but in some item fields.
2895 * This function is meant to replace all similar functions in the system.
2897 * @param array $item
2899 * @return array with share information
2901 public static function getShareArray($item)
2903 if (!preg_match("/(.*?)\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism", $item['body'], $matches)) {
2907 $attribute_string = $matches[2];
2908 $attributes = ['comment' => trim($matches[1]), 'shared' => trim($matches[3])];
2909 foreach (['author', 'profile', 'avatar', 'guid', 'posted', 'link'] as $field) {
2910 if (preg_match("/$field=(['\"])(.+?)\\1/ism", $attribute_string, $matches)) {
2911 $attributes[$field] = trim(html_entity_decode($matches[2] ?? '', ENT_QUOTES, 'UTF-8'));
2918 * Fetch item information for shared items from the original items and adds it.
2920 * @param array $item
2922 * @return array item array with data from the original item
2924 public static function addShareDataFromOriginal(array $item)
2926 $shared = self::getShareArray($item);
2927 if (empty($shared)) {
2931 // Real reshares always have got a GUID.
2932 if (empty($shared['guid'])) {
2936 $uid = $item['uid'] ?? 0;
2938 // first try to fetch the item via the GUID. This will work for all reshares that had been created on this system
2939 $shared_item = Post::selectFirst(['title', 'body'], ['guid' => $shared['guid'], 'uid' => [0, $uid]]);
2940 if (!DBA::isResult($shared_item)) {
2941 if (empty($shared['link'])) {
2945 // Otherwhise try to find (and possibly fetch) the item via the link. This should work for Diaspora and ActivityPub posts
2946 $id = self::fetchByLink($shared['link'] ?? '', $uid);
2948 Logger::info('Original item not found', ['url' => $shared['link'] ?? '', 'callstack' => System::callstack()]);
2952 $shared_item = Post::selectFirst(['title', 'body'], ['id' => $id]);
2953 if (!DBA::isResult($shared_item)) {
2956 Logger::info('Got shared data from url', ['url' => $shared['link'], 'callstack' => System::callstack()]);
2958 Logger::info('Got shared data from guid', ['guid' => $shared['guid'], 'callstack' => System::callstack()]);
2961 if (!empty($shared_item['title'])) {
2962 $body = '[h3]' . $shared_item['title'] . "[/h3]\n" . $shared_item['body'];
2963 unset($shared_item['title']);
2965 $body = $shared_item['body'];
2968 $item['body'] = preg_replace("/\[share ([^\[\]]*)\].*\[\/share\]/ism", '[share $1]' . $body . '[/share]', $item['body']);
2969 unset($shared_item['body']);
2971 return array_merge($item, $shared_item);
2975 * Check a prospective item array against user-level permissions
2977 * @param array $item Expected keys: uri, gravity, and
2978 * author-link if is author-id is set,
2979 * owner-link if is owner-id is set,
2980 * causer-link if is causer-id is set.
2981 * @param int $user_id Local user ID
2983 * @throws \Exception
2985 protected static function isAllowedByUser(array $item, int $user_id)
2987 if (!empty($item['author-id']) && Contact\User::isBlocked($item['author-id'], $user_id)) {
2988 Logger::notice('Author is blocked by user', ['author-link' => $item['author-link'], 'uid' => $user_id, 'item-uri' => $item['uri']]);
2992 if (!empty($item['owner-id']) && Contact\User::isBlocked($item['owner-id'], $user_id)) {
2993 Logger::notice('Owner is blocked by user', ['owner-link' => $item['owner-link'], 'uid' => $user_id, 'item-uri' => $item['uri']]);
2997 // The causer is set during a thread completion, for example because of a reshare. It countains the responsible actor.
2998 if (!empty($item['causer-id']) && Contact\User::isBlocked($item['causer-id'], $user_id)) {
2999 Logger::notice('Causer is blocked by user', ['causer-link' => $item['causer-link'] ?? $item['causer-id'], 'uid' => $user_id, 'item-uri' => $item['uri']]);
3003 if (!empty($item['causer-id']) && ($item['gravity'] === GRAVITY_PARENT) && Contact\User::isIgnored($item['causer-id'], $user_id)) {
3004 Logger::notice('Causer is ignored by user', ['causer-link' => $item['causer-link'] ?? $item['causer-id'], 'uid' => $user_id, 'item-uri' => $item['uri']]);