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'], $uid, ['hidden' => true], true);
252 if ($item['uid'] == $uid) {
253 self::markForDeletionById($item['id'], PRIORITY_HIGH);
254 } elseif ($item['uid'] != 0) {
255 Logger::log('Wrong ownership. Not deleting item ' . $item['id']);
262 * Mark an item for deletion, delete related data and notify others about it - if it was ours
264 * @param integer $item_id
265 * @param integer $priority Priority for the notification
267 * @return boolean success
268 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
270 public static function markForDeletionById($item_id, $priority = PRIORITY_HIGH)
272 Logger::info('Mark item for deletion by id', ['id' => $item_id, 'callstack' => System::callstack()]);
273 // locate item to be deleted
274 $fields = ['id', 'uri', 'uri-id', 'uid', 'parent', 'parent-uri-id', 'origin',
275 'deleted', 'resource-id', 'event-id',
276 'verb', 'object-type', 'object', 'target', 'contact-id', 'psid', 'gravity'];
277 $item = Post::selectFirst($fields, ['id' => $item_id]);
278 if (!DBA::isResult($item)) {
279 Logger::info('Item not found.', ['id' => $item_id]);
283 if ($item['deleted']) {
284 Logger::info('Item has already been marked for deletion.', ['id' => $item_id]);
288 $parent = Post::selectFirst(['origin'], ['id' => $item['parent']]);
289 if (!DBA::isResult($parent)) {
290 $parent = ['origin' => false];
293 // clean up categories and tags so they don't end up as orphans
294 Post\Category::deleteByURIId($item['uri-id'], $item['uid']);
297 * If item is a link to a photo resource, nuke all the associated photos
298 * (visitors will not have photo resources)
299 * This only applies to photos uploaded from the photos page. Photos inserted into a post do not
300 * generate a resource-id and therefore aren't intimately linked to the item.
302 /// @TODO: this should first check if photo is used elsewhere
303 if (strlen($item['resource-id'])) {
304 Photo::delete(['resource-id' => $item['resource-id'], 'uid' => $item['uid']]);
307 // If item is a link to an event, delete the event.
308 if (intval($item['event-id'])) {
309 Event::delete($item['event-id']);
312 // If item has attachments, drop them
313 $attachments = Post\Media::getByURIId($item['uri-id'], [Post\Media::DOCUMENT]);
314 foreach($attachments as $attachment) {
315 if (preg_match("|attach/(\d+)|", $attachment['url'], $matches)) {
316 Attach::delete(['id' => $matches[1], 'uid' => $item['uid']]);
320 // Set the item to "deleted"
321 $item_fields = ['deleted' => true, 'edited' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()];
322 DBA::update('item', $item_fields, ['id' => $item['id']]);
324 Post\Category::storeTextByURIId($item['uri-id'], $item['uid'], '');
325 self::deleteThread($item['id'], $item['parent-uri-id']);
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]);
359 Logger::info('Item has been marked for deletion.', ['id' => $item_id]);
364 private static function guid($item, $notify)
366 if (!empty($item['guid'])) {
367 return Strings::escapeTags(trim($item['guid']));
371 // We have to avoid duplicates. So we create the GUID in form of a hash of the plink or uri.
372 // We add the hash of our own host because our host is the original creator of the post.
373 $prefix_host = DI::baseUrl()->getHostname();
377 // We are only storing the post so we create a GUID from the original hostname.
378 if (!empty($item['author-link'])) {
379 $parsed = parse_url($item['author-link']);
380 if (!empty($parsed['host'])) {
381 $prefix_host = $parsed['host'];
385 if (empty($prefix_host) && !empty($item['plink'])) {
386 $parsed = parse_url($item['plink']);
387 if (!empty($parsed['host'])) {
388 $prefix_host = $parsed['host'];
392 if (empty($prefix_host) && !empty($item['uri'])) {
393 $parsed = parse_url($item['uri']);
394 if (!empty($parsed['host'])) {
395 $prefix_host = $parsed['host'];
399 // Is it in the format data@host.tld? - Used for mail contacts
400 if (empty($prefix_host) && !empty($item['author-link']) && strstr($item['author-link'], '@')) {
401 $mailparts = explode('@', $item['author-link']);
402 $prefix_host = array_pop($mailparts);
406 if (!empty($item['plink'])) {
407 $guid = self::guidFromUri($item['plink'], $prefix_host);
408 } elseif (!empty($item['uri'])) {
409 $guid = self::guidFromUri($item['uri'], $prefix_host);
411 $guid = System::createUUID(hash('crc32', $prefix_host));
417 private static function contactId($item)
419 if (!empty($item['contact-id']) && DBA::exists('contact', ['self' => true, 'id' => $item['contact-id']])) {
420 return $item['contact-id'];
421 } elseif (($item['gravity'] == GRAVITY_PARENT) && !empty($item['uid']) && !empty($item['contact-id']) && Contact::isSharing($item['contact-id'], $item['uid'])) {
422 return $item['contact-id'];
423 } elseif (!empty($item['uid']) && !Contact::isSharing($item['author-id'], $item['uid'])) {
424 return $item['author-id'];
425 } elseif (!empty($item['contact-id'])) {
426 return $item['contact-id'];
428 $contact_id = Contact::getIdForURL($item['author-link'], $item['uid']);
429 if (!empty($contact_id)) {
433 return $item['author-id'];
437 * Write an item array into a spool file to be inserted later.
438 * This command is called whenever there are issues storing an item.
440 * @param array $item The item fields that are to be inserted
443 private static function spool($orig_item)
445 // Now we store the data in the spool directory
446 // We use "microtime" to keep the arrival order and "mt_rand" to avoid duplicates
447 $file = 'item-' . round(microtime(true) * 10000) . '-' . mt_rand() . '.msg';
449 $spoolpath = get_spoolpath();
450 if ($spoolpath != "") {
451 $spool = $spoolpath . '/' . $file;
453 file_put_contents($spool, json_encode($orig_item));
454 Logger::warning("Item wasn't stored - Item was spooled into file", ['file' => $file]);
459 * Check if the item array is a duplicate
462 * @return boolean is it a duplicate?
464 private static function isDuplicate(array $item)
466 // Checking if there is already an item with the same guid
467 $condition = ['guid' => $item['guid'], 'network' => $item['network'], 'uid' => $item['uid']];
468 if (Post::exists($condition)) {
469 Logger::notice('Found already existing item', [
470 'guid' => $item['guid'],
471 'uid' => $item['uid'],
472 'network' => $item['network']
477 $condition = ['uri-id' => $item['uri-id'], 'uid' => $item['uid'],
478 'network' => [$item['network'], Protocol::DFRN]];
479 if (Post::exists($condition)) {
480 Logger::notice('duplicated item with the same uri found.', $item);
484 // On Friendica and Diaspora the GUID is unique
485 if (in_array($item['network'], [Protocol::DFRN, Protocol::DIASPORA])) {
486 $condition = ['guid' => $item['guid'], 'uid' => $item['uid']];
487 if (Post::exists($condition)) {
488 Logger::notice('duplicated item with the same guid found.', $item);
491 } elseif ($item['network'] == Protocol::OSTATUS) {
492 // Check for an existing post with the same content. There seems to be a problem with OStatus.
493 $condition = ["`body` = ? AND `network` = ? AND `created` = ? AND `contact-id` = ? AND `uid` = ?",
494 $item['body'], $item['network'], $item['created'], $item['contact-id'], $item['uid']];
495 if (Post::exists($condition)) {
496 Logger::notice('duplicated item with the same body found.', $item);
502 * Check for already added items.
503 * There is a timing issue here that sometimes creates double postings.
504 * An unique index would help - but the limitations of MySQL (maximum size of index values) prevent this.
506 if (($item['uid'] == 0) && Post::exists(['uri-id' => $item['uri-id'], 'uid' => 0])) {
507 Logger::notice('Global item already stored.', ['uri-id' => $item['uri-id'], 'network' => $item['network']]);
515 * Check if the item array is valid
518 * @return boolean item is valid
520 public static function isValid(array $item)
522 // When there is no content then we don't post it
523 if ($item['body'] . $item['title'] == '') {
524 Logger::notice('No body, no title.');
528 if (!empty($item['uid'])) {
529 $owner = User::getOwnerDataById($item['uid'], false);
531 Logger::notice('Missing item user owner data', ['uid' => $item['uid']]);
535 if ($owner['account_expired'] || $owner['account_removed']) {
536 Logger::notice('Item user has been deleted/expired/removed', ['uid' => $item['uid'], 'deleted' => $owner['deleted'], 'account_expired' => $owner['account_expired'], 'account_removed' => $owner['account_removed']]);
541 if (!empty($item['author-id']) && Contact::isBlocked($item['author-id'])) {
542 Logger::notice('Author is blocked node-wide', ['author-link' => $item['author-link'], 'item-uri' => $item['uri']]);
546 if (!empty($item['author-link']) && Network::isUrlBlocked($item['author-link'])) {
547 Logger::notice('Author server is blocked', ['author-link' => $item['author-link'], 'item-uri' => $item['uri']]);
551 if (!empty($item['owner-id']) && Contact::isBlocked($item['owner-id'])) {
552 Logger::notice('Owner is blocked node-wide', ['owner-link' => $item['owner-link'], 'item-uri' => $item['uri']]);
556 if (!empty($item['owner-link']) && Network::isUrlBlocked($item['owner-link'])) {
557 Logger::notice('Owner server is blocked', ['owner-link' => $item['owner-link'], 'item-uri' => $item['uri']]);
561 if (!empty($item['uid']) && !self::isAllowedByUser($item, $item['uid'])) {
565 if ($item['verb'] == Activity::FOLLOW) {
566 if (!$item['origin'] && ($item['author-id'] == Contact::getPublicIdByUserId($item['uid']))) {
567 // Our own follow request can be relayed to us. We don't store it to avoid notification chaos.
568 Logger::info("Follow: Don't store not origin follow request", ['parent-uri' => $item['parent-uri']]);
572 $condition = ['verb' => Activity::FOLLOW, 'uid' => $item['uid'],
573 'parent-uri' => $item['parent-uri'], 'author-id' => $item['author-id']];
574 if (Post::exists($condition)) {
575 // It happens that we receive multiple follow requests by the same author - we only store one.
576 Logger::info('Follow: Found existing follow request from author', ['author-id' => $item['author-id'], 'parent-uri' => $item['parent-uri']]);
585 * Check if the item array is too old
588 * @return boolean item is too old
590 public static function isTooOld(array $item)
592 // check for create date and expire time
593 $expire_interval = DI::config()->get('system', 'dbclean-expire-days', 0);
595 $user = DBA::selectFirst('user', ['expire'], ['uid' => $item['uid']]);
596 if (DBA::isResult($user) && ($user['expire'] > 0) && (($user['expire'] < $expire_interval) || ($expire_interval == 0))) {
597 $expire_interval = $user['expire'];
600 if (($expire_interval > 0) && !empty($item['created'])) {
601 $expire_date = time() - ($expire_interval * 86400);
602 $created_date = strtotime($item['created']);
603 if ($created_date < $expire_date) {
604 Logger::notice('Item created before expiration interval.', [
605 'created' => date('c', $created_date),
606 'expired' => date('c', $expire_date),
617 * Return the id of the given item array if it has been stored before
620 * @return integer item id
622 private static function getDuplicateID(array $item)
624 if (empty($item['network']) || in_array($item['network'], Protocol::FEDERATED)) {
625 $condition = ["`uri-id` = ? AND `uid` = ? AND `network` IN (?, ?, ?, ?)",
626 $item['uri-id'], $item['uid'],
627 Protocol::ACTIVITYPUB, Protocol::DIASPORA, Protocol::DFRN, Protocol::OSTATUS];
628 $existing = Post::selectFirst(['id', 'network'], $condition);
629 if (DBA::isResult($existing)) {
630 // We only log the entries with a different user id than 0. Otherwise we would have too many false positives
631 if ($item['uid'] != 0) {
632 Logger::notice('Item already existed for user', [
633 'uri-id' => $item['uri-id'],
634 'uid' => $item['uid'],
635 'network' => $item['network'],
636 'existing_id' => $existing["id"],
637 'existing_network' => $existing["network"]
641 return $existing["id"];
648 * Fetch top-level parent data for the given item array
651 * @return array item array with parent data
654 private static function getTopLevelParent(array $item)
656 $fields = ['uid', 'uri', 'parent-uri', 'id', 'deleted',
657 'uri-id', 'parent-uri-id',
658 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
659 'wall', 'private', 'forum_mode', 'origin', 'author-id'];
660 $condition = ['uri-id' => $item['thr-parent-id'], 'uid' => $item['uid']];
661 $params = ['order' => ['id' => false]];
662 $parent = Post::selectFirst($fields, $condition, $params);
664 if (!DBA::isResult($parent)) {
665 Logger::notice('item parent was not found - ignoring item', ['thr-parent-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
669 if ($parent['uri-id'] == $parent['parent-uri-id']) {
673 $condition = ['uri-id' => $parent['parent-uri-id'],
674 'parent-uri-id' => $parent['parent-uri-id'],
675 'uid' => $parent['uid']];
676 $params = ['order' => ['id' => false]];
677 $toplevel_parent = Post::selectFirst($fields, $condition, $params);
678 if (!DBA::isResult($toplevel_parent)) {
679 Logger::notice('item top level parent was not found - ignoring item', ['parent-uri-id' => $parent['parent-uri-id'], 'uid' => $parent['uid']]);
683 return $toplevel_parent;
687 * Get the gravity for the given item array
690 * @return integer gravity
692 private static function getGravity(array $item)
694 $activity = DI::activity();
696 if (isset($item['gravity'])) {
697 return intval($item['gravity']);
698 } elseif ($item['parent-uri-id'] === $item['uri-id']) {
699 return GRAVITY_PARENT;
700 } elseif ($activity->match($item['verb'], Activity::POST)) {
701 return GRAVITY_COMMENT;
702 } elseif ($activity->match($item['verb'], Activity::FOLLOW)) {
703 return GRAVITY_ACTIVITY;
704 } elseif ($activity->match($item['verb'], Activity::ANNOUNCE)) {
705 return GRAVITY_ACTIVITY;
707 Logger::info('Unknown gravity for verb', ['verb' => $item['verb']]);
708 return GRAVITY_UNKNOWN; // Should not happen
711 public static function insert($item, $notify = false, $dontcache = false)
715 $priority = PRIORITY_HIGH;
717 // If it is a posting where users should get notifications, then define it as wall posting
721 $item['network'] = Protocol::DFRN;
722 $item['protocol'] = Conversation::PARCEL_DIRECT;
723 $item['direction'] = Conversation::PUSH;
725 if (in_array($notify, PRIORITIES)) {
729 $item['network'] = trim(($item['network'] ?? '') ?: Protocol::PHANTOM);
732 $uid = intval($item['uid']);
734 $item['guid'] = self::guid($item, $notify);
735 $item['uri'] = substr(trim($item['uri'] ?? '') ?: self::newURI($item['uid'], $item['guid']), 0, 255);
738 $item['uri-id'] = ItemURI::insert(['uri' => $item['uri'], 'guid' => $item['guid']]);
740 // Backward compatibility: parent-uri used to be the direct parent uri.
741 // If it is provided without a thr-parent, it probably is the old behavior.
742 $item['thr-parent'] = trim($item['thr-parent'] ?? $item['parent-uri'] ?? $item['uri']);
743 $item['parent-uri'] = $item['thr-parent'];
745 $item['thr-parent-id'] = $item['parent-uri-id'] = ItemURI::getIdByURI($item['thr-parent']);
747 // Store conversation data
748 $item = Conversation::insert($item);
751 * Do we already have this item?
752 * We have to check several networks since Friendica posts could be repeated
753 * via OStatus (maybe Diasporsa as well)
755 $duplicate = self::getDuplicateID($item);
760 // Additional duplicate checks
761 /// @todo Check why the first duplication check returns the item number and the second a 0
762 if (self::isDuplicate($item)) {
766 $item['wall'] = intval($item['wall'] ?? 0);
767 $item['extid'] = trim($item['extid'] ?? '');
768 $item['author-name'] = trim($item['author-name'] ?? '');
769 $item['author-link'] = trim($item['author-link'] ?? '');
770 $item['author-avatar'] = trim($item['author-avatar'] ?? '');
771 $item['owner-name'] = trim($item['owner-name'] ?? '');
772 $item['owner-link'] = trim($item['owner-link'] ?? '');
773 $item['owner-avatar'] = trim($item['owner-avatar'] ?? '');
774 $item['received'] = (isset($item['received']) ? DateTimeFormat::utc($item['received']) : DateTimeFormat::utcNow());
775 $item['created'] = (isset($item['created']) ? DateTimeFormat::utc($item['created']) : $item['received']);
776 $item['edited'] = (isset($item['edited']) ? DateTimeFormat::utc($item['edited']) : $item['created']);
777 $item['changed'] = (isset($item['changed']) ? DateTimeFormat::utc($item['changed']) : $item['created']);
778 $item['commented'] = (isset($item['commented']) ? DateTimeFormat::utc($item['commented']) : $item['created']);
779 $item['title'] = substr(trim($item['title'] ?? ''), 0, 255);
780 $item['location'] = trim($item['location'] ?? '');
781 $item['coord'] = trim($item['coord'] ?? '');
782 $item['visible'] = (isset($item['visible']) ? intval($item['visible']) : 1);
783 $item['deleted'] = 0;
784 $item['post-type'] = ($item['post-type'] ?? '') ?: self::PT_ARTICLE;
785 $item['verb'] = trim($item['verb'] ?? '');
786 $item['object-type'] = trim($item['object-type'] ?? '');
787 $item['object'] = trim($item['object'] ?? '');
788 $item['target-type'] = trim($item['target-type'] ?? '');
789 $item['target'] = trim($item['target'] ?? '');
790 $item['plink'] = substr(trim($item['plink'] ?? ''), 0, 255);
791 $item['allow_cid'] = trim($item['allow_cid'] ?? '');
792 $item['allow_gid'] = trim($item['allow_gid'] ?? '');
793 $item['deny_cid'] = trim($item['deny_cid'] ?? '');
794 $item['deny_gid'] = trim($item['deny_gid'] ?? '');
795 $item['private'] = intval($item['private'] ?? self::PUBLIC);
796 $item['body'] = trim($item['body'] ?? '');
797 $item['raw-body'] = trim($item['raw-body'] ?? $item['body']);
798 $item['app'] = trim($item['app'] ?? '');
799 $item['origin'] = intval($item['origin'] ?? 0);
800 $item['postopts'] = trim($item['postopts'] ?? '');
801 $item['resource-id'] = trim($item['resource-id'] ?? '');
802 $item['event-id'] = intval($item['event-id'] ?? 0);
803 $item['inform'] = trim($item['inform'] ?? '');
804 $item['file'] = trim($item['file'] ?? '');
806 // Items cannot be stored before they happen ...
807 if ($item['created'] > DateTimeFormat::utcNow()) {
808 $item['created'] = DateTimeFormat::utcNow();
811 // We haven't invented time travel by now.
812 if ($item['edited'] > DateTimeFormat::utcNow()) {
813 $item['edited'] = DateTimeFormat::utcNow();
816 $item['plink'] = ($item['plink'] ?? '') ?: DI::baseUrl() . '/display/' . urlencode($item['guid']);
818 $item['gravity'] = self::getGravity($item);
820 $item['language'] = self::getLanguage($item);
822 $default = ['url' => $item['author-link'], 'name' => $item['author-name'],
823 'photo' => $item['author-avatar'], 'network' => $item['network']];
824 $item['author-id'] = ($item['author-id'] ?? 0) ?: Contact::getIdForURL($item['author-link'], 0, null, $default);
826 $default = ['url' => $item['owner-link'], 'name' => $item['owner-name'],
827 'photo' => $item['owner-avatar'], 'network' => $item['network']];
828 $item['owner-id'] = ($item['owner-id'] ?? 0) ?: Contact::getIdForURL($item['owner-link'], 0, null, $default);
830 $actor = ($item['gravity'] == GRAVITY_PARENT) ? $item['owner-id'] : $item['author-id'];
831 if (!$item['origin'] && ($item['uid'] != 0) && Contact::isSharing($actor, $item['uid'])) {
832 $item['post-type'] = self::PT_FOLLOWER;
835 // Ensure that there is an avatar cache
836 Contact::checkAvatarCache($item['author-id']);
837 Contact::checkAvatarCache($item['owner-id']);
839 // The contact-id should be set before "self::insert" was called - but there seems to be issues sometimes
840 $item["contact-id"] = self::contactId($item);
842 if (!empty($item['direction']) && in_array($item['direction'], [Conversation::PUSH, Conversation::RELAY]) &&
843 self::isTooOld($item)) {
844 Logger::info('Item is too old', ['item' => $item]);
848 if (!self::isValid($item)) {
852 if ($item['gravity'] !== GRAVITY_PARENT) {
853 $toplevel_parent = self::getTopLevelParent($item);
854 if (empty($toplevel_parent)) {
858 // If the thread originated from this node, we check the permission against the thread starter
859 $condition = ['uri-id' => $toplevel_parent['uri-id'], 'wall' => true];
860 $localTopLevelParent = Post::selectFirst(['uid'], $condition);
861 if (!empty($localTopLevelParent['uid']) && !self::isAllowedByUser($item, $localTopLevelParent['uid'])) {
865 $parent_id = $toplevel_parent['id'];
866 $item['parent-uri'] = $toplevel_parent['uri'];
867 $item['parent-uri-id'] = $toplevel_parent['uri-id'];
868 $item['deleted'] = $toplevel_parent['deleted'];
869 $item['allow_cid'] = $toplevel_parent['allow_cid'];
870 $item['allow_gid'] = $toplevel_parent['allow_gid'];
871 $item['deny_cid'] = $toplevel_parent['deny_cid'];
872 $item['deny_gid'] = $toplevel_parent['deny_gid'];
873 $parent_origin = $toplevel_parent['origin'];
875 // Don't federate received participation messages
876 if ($item['verb'] != Activity::FOLLOW) {
877 $item['wall'] = $toplevel_parent['wall'];
879 $item['wall'] = false;
883 * If the parent is private, force privacy for the entire conversation
884 * This differs from the above settings as it subtly allows comments from
885 * email correspondents to be private even if the overall thread is not.
887 if ($toplevel_parent['private']) {
888 $item['private'] = $toplevel_parent['private'];
892 * Edge case. We host a public forum that was originally posted to privately.
893 * The original author commented, but as this is a comment, the permissions
894 * weren't fixed up so it will still show the comment as private unless we fix it here.
896 if ((intval($toplevel_parent['forum_mode']) == 1) && ($toplevel_parent['private'] != self::PUBLIC)) {
897 $item['private'] = self::PUBLIC;
900 // If its a post that originated here then tag the thread as "mention"
901 if ($item['origin'] && $item['uid']) {
902 DBA::update('thread', ['mention' => true], ['iid' => $parent_id]);
903 Logger::info('tagged thread as mention', ['parent' => $parent_id, 'uid' => $item['uid']]);
906 // Update the contact relations
907 Contact\Relation::store($toplevel_parent['author-id'], $item['author-id'], $item['created']);
910 $parent_origin = $item['origin'];
913 $item['parent-uri-id'] = ItemURI::getIdByURI($item['parent-uri']);
914 $item['thr-parent-id'] = ItemURI::getIdByURI($item['thr-parent']);
916 // Is this item available in the global items (with uid=0)?
917 if ($item["uid"] == 0) {
918 $item["global"] = true;
920 // Set the global flag on all items if this was a global item entry
921 DBA::update('item', ['global' => true], ['uri-id' => $item['uri-id']]);
923 $item['global'] = Post::exists(['uid' => 0, 'uri-id' => $item['uri-id']]);
927 if (!empty($item["allow_cid"] . $item["allow_gid"] . $item["deny_cid"] . $item["deny_gid"])) {
928 $item["private"] = self::PRIVATE;
932 $item['edit'] = false;
933 $item['parent'] = $parent_id;
934 Hook::callAll('post_local', $item);
936 Hook::callAll('post_remote', $item);
939 if (!empty($item['cancel'])) {
940 Logger::log('post cancelled by addon.');
944 if (empty($item['vid']) && !empty($item['verb'])) {
945 $item['vid'] = Verb::getID($item['verb']);
948 // Creates or assigns the permission set
949 $item['psid'] = PermissionSet::getIdFromACL(
957 if ($item['verb'] == Activity::ANNOUNCE) {
958 self::setOwnerforResharedItem($item);
961 // Remove all media attachments from the body and store them in the post-media table
962 $item['raw-body'] = Post\Media::insertFromBody($item['uri-id'], $item['raw-body']);
963 $item['raw-body'] = self::setHashtags($item['raw-body']);
965 // Check for hashtags in the body and repair or add hashtag links
966 $item['body'] = self::setHashtags($item['body']);
968 // Fill the cache field
969 self::putInCache($item);
971 if (stristr($item['verb'], Activity::POKE)) {
972 $notify_type = Delivery::POKE;
974 $notify_type = Delivery::POST;
977 // Filling item related side tables
978 if (!empty($item['attach'])) {
979 Post\Media::insertFromAttachment($item['uri-id'], $item['attach']);
982 if (!in_array($item['verb'], self::ACTIVITIES)) {
983 Post\Content::insert($item['uri-id'], $item);
986 // Diaspora signature
987 if (!empty($item['diaspora_signed_text'])) {
988 DBA::replace('diaspora-interaction', ['uri-id' => $item['uri-id'], 'interaction' => $item['diaspora_signed_text']]);
991 // Attached file links
992 if (!empty($item['file'])) {
993 Post\Category::storeTextByURIId($item['uri-id'], $item['uid'], $item['file']);
996 // Delivery relevant data
997 $delivery_data = Post\DeliveryData::extractFields($item);
999 if (!empty($item['origin']) || !empty($item['wall']) || !empty($delivery_data['postopts']) || !empty($delivery_data['inform'])) {
1000 Post\DeliveryData::insert($item['uri-id'], $delivery_data);
1003 // Store tags from the body if this hadn't been handled previously in the protocol classes
1004 if (!Tag::existsForPost($item['uri-id'])) {
1005 Tag::storeFromBody($item['uri-id'], $item['body']);
1008 $id = Post\User::insert($item['uri-id'], $item['uid'], $item);
1010 Logger::notice('Post-User is already inserted - aborting', ['uid' => $item['uid'], 'uri-id' => $item['uri-id']]);
1014 if ($item['gravity'] == GRAVITY_PARENT) {
1015 Post\ThreadUser::insert($item['uri-id'], $item['uid'], $item);
1018 $condition = ['uri-id' => $item['uri-id'], 'uid' => $item['uid'], 'network' => $item['network']];
1019 if (Post::exists($condition)) {
1020 Logger::notice('Item is already inserted - aborting', $condition);
1024 // Remove all fields that aren't part of the item table
1025 $table_fields = DBStructure::getFieldsForTable('item', $item);
1027 // We remove all legacy fields that now are stored in other tables
1028 foreach (self::LEGACY_FIELDLIST as $field) {
1029 unset($table_fields[$field]);
1032 $result = DBA::insert('item', $table_fields);
1034 // When the item was successfully stored we fetch the ID of the item.
1035 $current_post = DBA::lastInsertId();
1037 if (empty($current_post) || !DBA::isResult($result)) {
1038 // On failure store the data into a spool file so that the "SpoolPost" worker can try again later.
1039 Logger::warning('Could not store item. it will be spooled', ['result' => $result, 'id' => $current_post]);
1040 self::spool($orig_item);
1044 Logger::notice('created item', ['id' => $current_post, 'uid' => $item['uid'], 'network' => $item['network'], 'uri-id' => $item['uri-id'], 'guid' => $item['guid']]);
1046 if (!$parent_id || ($item['gravity'] === GRAVITY_PARENT)) {
1047 $parent_id = $current_post;
1051 DBA::update('item', ['parent' => $parent_id], ['id' => $current_post]);
1053 $item['id'] = $current_post;
1054 $item['parent'] = $parent_id;
1056 // update the commented timestamp on the parent
1057 if (DI::config()->get('system', 'like_no_comment')) {
1058 // Update when it is a comment
1059 $update_commented = in_array($item['gravity'], [GRAVITY_PARENT, GRAVITY_COMMENT]);
1061 // Update when it isn't a follow or tag verb
1062 $update_commented = !in_array($item['verb'], [Activity::FOLLOW, Activity::TAG]);
1065 if ($update_commented) {
1066 DBA::update('item', ['commented' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
1068 DBA::update('item', ['changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
1071 if ($item['gravity'] === GRAVITY_PARENT) {
1072 self::addThread($current_post);
1074 self::updateThread($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($item);
1107 UserItem::setNotification($current_post);
1109 check_user_notification($current_post);
1111 // Distribute items to users who subscribed to their tags
1112 self::distributeByTags($item);
1114 // Automatically reshare the item if the "remote_self" option is selected
1115 self::autoReshare($item);
1117 $transmit = $notify || ($item['visible'] && ($parent_origin || $item['origin']));
1120 $transmit_item = Post::selectFirst(['verb', 'origin'], ['id' => $item['id']]);
1121 // Don't relay participation messages
1122 if (($transmit_item['verb'] == Activity::FOLLOW) &&
1123 (!$transmit_item['origin'] || ($item['author-id'] != Contact::getPublicIdByUserId($uid)))) {
1124 Logger::info('Participation messages will not be relayed', ['item' => $item['id'], 'uri' => $item['uri'], 'verb' => $transmit_item['verb']]);
1130 Worker::add(['priority' => $priority, 'dont_fork' => true], 'Notifier', $notify_type, $current_post);
1133 return $current_post;
1137 * Change the owner of a parent item if it had been shared by a forum
1139 * (public) forum posts in the new format consist of the regular post by the author
1140 * followed by an announce message sent from the forum account.
1141 * Changing the owner helps in grouping forum posts.
1143 * @param array $item
1146 private static function setOwnerforResharedItem(array $item)
1148 $parent = Post::selectFirst(['id', 'causer-id', 'owner-id', 'author-id', 'author-link', 'origin', 'post-type'],
1149 ['uri-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
1150 if (!DBA::isResult($parent)) {
1151 Logger::error('Parent not found', ['uri-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
1155 $author = Contact::selectFirst(['url', 'contact-type'], ['id' => $item['author-id']]);
1156 if (!DBA::isResult($author)) {
1157 Logger::error('Author not found', ['id' => $item['author-id']]);
1161 $cid = Contact::getIdForURL($author['url'], $item['uid']);
1162 if (empty($cid) || !Contact::isSharing($cid, $item['uid'])) {
1163 Logger::info('The resharer is not a following contact: quit', ['resharer' => $author['url'], 'uid' => $item['uid']]);
1167 if ($author['contact-type'] != Contact::TYPE_COMMUNITY) {
1168 if ($parent['post-type'] == self::PT_ANNOUNCEMENT) {
1169 Logger::info('The parent is already marked as announced: quit', ['causer' => $parent['causer-id'], 'owner' => $parent['owner-id'], 'author' => $parent['author-id'], 'uid' => $item['uid']]);
1173 if (Contact::isSharing($parent['owner-id'], $item['uid'])) {
1174 Logger::info('The resharer is no forum: quit', ['resharer' => $item['author-id'], 'owner' => $parent['owner-id'], 'author' => $parent['author-id'], 'uid' => $item['uid']]);
1177 self::update(['post-type' => self::PT_ANNOUNCEMENT, 'causer-id' => $item['author-id']], ['id' => $parent['id']]);
1178 Logger::info('Set announcement post-type', ['uri-id' => $item['uri-id'], 'thr-parent-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
1182 self::update(['owner-id' => $item['author-id'], 'contact-id' => $cid], ['id' => $parent['id']]);
1183 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]);
1187 * Distribute the given item to users who subscribed to their tags
1189 * @param array $item Processed item
1191 private static function distributeByTags(array $item)
1193 if (($item['uid'] != 0) || ($item['gravity'] != GRAVITY_PARENT) || !in_array($item['network'], Protocol::FEDERATED)) {
1197 $uids = Tag::getUIDListByURIId($item['uri-id']);
1198 foreach ($uids as $uid) {
1199 if (Contact::isSharing($item['author-id'], $uid)) {
1202 $fields = ['post-type' => self::PT_TAG];
1205 $stored = self::storeForUserByUriId($item['uri-id'], $uid, $fields);
1206 Logger::info('Stored item for users', ['uri-id' => $item['uri-id'], 'uid' => $uid, 'fields' => $fields, 'stored' => $stored]);
1211 * Distributes public items to the receivers
1213 * @param integer $itemid Item ID that should be added
1214 * @param string $signed_text Original text (for Diaspora signatures), JSON encoded.
1215 * @throws \Exception
1217 public static function distribute($itemid, $signed_text = '')
1219 $condition = ["`id` IN (SELECT `parent` FROM `post-view` WHERE `id` = ?)", $itemid];
1220 $parent = Post::selectFirst(['owner-id'], $condition);
1221 if (!DBA::isResult($parent)) {
1225 // Only distribute public items from native networks
1226 $condition = ['id' => $itemid, 'uid' => 0,
1227 'network' => array_merge(Protocol::FEDERATED ,['']),
1228 'visible' => true, 'deleted' => false, 'moderated' => false, 'private' => [self::PUBLIC, self::UNLISTED]];
1229 $item = Post::selectFirst(self::ITEM_FIELDLIST, $condition);
1230 if (!DBA::isResult($item)) {
1234 $origin = $item['origin'];
1238 /// @todo add a field "pcid" in the contact table that referrs to the public contact id.
1239 $owner = DBA::selectFirst('contact', ['url', 'nurl', 'alias'], ['id' => $parent['owner-id']]);
1240 if (!DBA::isResult($owner)) {
1244 $condition = ['nurl' => $owner['nurl'], 'rel' => [Contact::SHARING, Contact::FRIEND]];
1245 $contacts = DBA::select('contact', ['uid'], $condition);
1246 while ($contact = DBA::fetch($contacts)) {
1247 if ($contact['uid'] == 0) {
1251 $users[$contact['uid']] = $contact['uid'];
1253 DBA::close($contacts);
1255 $condition = ['alias' => $owner['url'], 'rel' => [Contact::SHARING, Contact::FRIEND]];
1256 $contacts = DBA::select('contact', ['uid'], $condition);
1257 while ($contact = DBA::fetch($contacts)) {
1258 if ($contact['uid'] == 0) {
1262 $users[$contact['uid']] = $contact['uid'];
1264 DBA::close($contacts);
1266 if (!empty($owner['alias'])) {
1267 $condition = ['nurl' => Strings::normaliseLink($owner['alias']), 'rel' => [Contact::SHARING, Contact::FRIEND]];
1268 $contacts = DBA::select('contact', ['uid'], $condition);
1269 while ($contact = DBA::fetch($contacts)) {
1270 if ($contact['uid'] == 0) {
1274 $users[$contact['uid']] = $contact['uid'];
1276 DBA::close($contacts);
1281 if ($item['uri-id'] != $item['parent-uri-id']) {
1282 $parents = Post::select(['uid', 'origin'], ["`uri-id` = ? AND `uid` != 0", $item['parent-uri-id']]);
1283 while ($parent = Post::fetch($parents)) {
1284 $users[$parent['uid']] = $parent['uid'];
1285 if ($parent['origin'] && !$origin) {
1286 $origin_uid = $parent['uid'];
1289 DBA::close($parents);
1292 foreach ($users as $uid) {
1293 if ($origin_uid == $uid) {
1294 $item['diaspora_signed_text'] = $signed_text;
1296 self::storeForUser($item, $uid);
1301 * Store a public item defined by their URI-ID for the given users
1303 * @param integer $uri_id URI-ID of the given item
1304 * @param integer $uid The user that will receive the item entry
1305 * @param array $fields Additional fields to be stored
1306 * @return integer stored item id
1308 public static function storeForUserByUriId(int $uri_id, int $uid, array $fields = [])
1310 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['uri-id' => $uri_id, 'uid' => 0]);
1311 if (!DBA::isResult($item)) {
1315 if (($item['private'] == self::PRIVATE) || !in_array($item['network'], Protocol::FEDERATED)) {
1316 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']]);
1320 $item['post-type'] = self::PT_STORED;
1322 $item = array_merge($item, $fields);
1324 $stored = self::storeForUser($item, $uid);
1325 Logger::info('Public item stored for user', ['uri-id' => $item['uri-id'], 'uid' => $uid, 'stored' => $stored]);
1330 * Store a public item array for the given users
1332 * @param array $item The item entry that will be stored
1333 * @param integer $uid The user that will receive the item entry
1334 * @return integer stored item id
1335 * @throws \Exception
1337 private static function storeForUser(array $item, int $uid)
1339 if (Post::exists(['uri-id' => $item['uri-id'], 'uid' => $uid])) {
1340 Logger::info('Item already exists', ['uri-id' => $item['uri-id'], 'uid' => $uid]);
1345 unset($item['parent']);
1346 unset($item['mention']);
1347 unset($item['starred']);
1348 unset($item['unseen']);
1349 unset($item['psid']);
1351 $item['uid'] = $uid;
1352 $item['origin'] = 0;
1355 if ($item['gravity'] == GRAVITY_PARENT) {
1356 $contact = Contact::getByURLForUser($item['owner-link'], $uid, false, ['id']);
1358 $contact = Contact::getByURLForUser($item['author-link'], $uid, false, ['id']);
1361 if (!empty($contact['id'])) {
1362 $item['contact-id'] = $contact['id'];
1364 // Shouldn't happen at all
1365 Logger::warning('contact-id could not be fetched', ['uid' => $uid, 'item' => $item]);
1366 $self = DBA::selectFirst('contact', ['id'], ['self' => true, 'uid' => $uid]);
1367 if (!DBA::isResult($self)) {
1368 // Shouldn't happen even less
1369 Logger::warning('self contact could not be fetched', ['uid' => $uid, 'item' => $item]);
1372 $item['contact-id'] = $self['id'];
1375 /// @todo Handling of "event-id"
1378 if ($item['gravity'] == GRAVITY_PARENT) {
1379 $contact = DBA::selectFirst('contact', [], ['id' => $item['contact-id'], 'self' => false]);
1380 if (DBA::isResult($contact)) {
1381 $notify = self::isRemoteSelf($contact, $item);
1385 $distributed = self::insert($item, $notify, true);
1387 if (!$distributed) {
1388 Logger::info("Distributed public item wasn't stored", ['uri-id' => $item['uri-id'], 'user' => $uid]);
1390 Logger::info('Distributed public item was stored', ['uri-id' => $item['uri-id'], 'user' => $uid, 'stored' => $distributed]);
1392 return $distributed;
1396 * Add a shadow entry for a given item id that is a thread starter
1398 * We store every public item entry additionally with the user id "0".
1399 * This is used for the community page and for the search.
1400 * It is planned that in the future we will store public item entries only once.
1402 * @param integer $itemid Item ID that should be added
1403 * @throws \Exception
1405 private static function addShadow($itemid)
1407 $fields = ['uid', 'private', 'moderated', 'visible', 'deleted', 'network', 'uri-id'];
1408 $condition = ['id' => $itemid, 'parent' => [0, $itemid]];
1409 $item = Post::selectFirst($fields, $condition);
1411 if (!DBA::isResult($item)) {
1415 // is it already a copy?
1416 if (($itemid == 0) || ($item['uid'] == 0)) {
1420 // Is it a visible public post?
1421 if (!$item["visible"] || $item["deleted"] || $item["moderated"] || ($item["private"] == self::PRIVATE)) {
1425 // is it an entry from a connector? Only add an entry for natively connected networks
1426 if (!in_array($item["network"], array_merge(Protocol::FEDERATED ,['']))) {
1430 if (Post::exists(['uri-id' => $item['uri-id'], 'uid' => 0])) {
1434 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $itemid]);
1436 if (DBA::isResult($item)) {
1437 // Preparing public shadow (removing user specific data)
1440 unset($item['parent']);
1441 unset($item['wall']);
1442 unset($item['mention']);
1443 unset($item['origin']);
1444 unset($item['starred']);
1445 unset($item['postopts']);
1446 unset($item['inform']);
1447 unset($item['post-type']);
1448 if ($item['uri-id'] == $item['parent-uri-id']) {
1449 $item['contact-id'] = $item['owner-id'];
1451 $item['contact-id'] = $item['author-id'];
1454 $public_shadow = self::insert($item, false, true);
1456 Logger::info('Stored public shadow', ['thread' => $itemid, 'id' => $public_shadow]);
1461 * Add a shadow entry for a given item id that is a comment
1463 * This function does the same like the function above - but for comments
1465 * @param integer $itemid Item ID that should be added
1466 * @throws \Exception
1468 private static function addShadowPost($itemid)
1470 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $itemid]);
1471 if (!DBA::isResult($item)) {
1475 // Is it a toplevel post?
1476 if ($item['gravity'] == GRAVITY_PARENT) {
1477 self::addShadow($itemid);
1481 // Is this a shadow entry?
1482 if ($item['uid'] == 0) {
1486 // Is there a shadow parent?
1487 if (!Post::exists(['uri-id' => $item['parent-uri-id'], 'uid' => 0])) {
1491 // Is there already a shadow entry?
1492 if (Post::exists(['uri-id' => $item['uri-id'], 'uid' => 0])) {
1496 // Save "origin" and "parent" state
1497 $origin = $item['origin'];
1498 $parent = $item['parent'];
1500 // Preparing public shadow (removing user specific data)
1503 unset($item['parent']);
1504 unset($item['wall']);
1505 unset($item['mention']);
1506 unset($item['origin']);
1507 unset($item['starred']);
1508 unset($item['postopts']);
1509 unset($item['inform']);
1510 unset($item['post-type']);
1511 $item['contact-id'] = Contact::getIdForURL($item['author-link']);
1513 $public_shadow = self::insert($item, false, true);
1515 Logger::info('Stored public shadow', ['uri-id' => $item['uri-id'], 'id' => $public_shadow]);
1517 // If this was a comment to a Diaspora post we don't get our comment back.
1518 // This means that we have to distribute the comment by ourselves.
1519 if ($origin && Post::exists(['id' => $parent, 'network' => Protocol::DIASPORA])) {
1520 self::distribute($public_shadow);
1525 * Adds a language specification in a "language" element of given $arr.
1526 * Expects "body" element to exist in $arr.
1528 * @param array $item
1529 * @return string detected language
1530 * @throws \Text_LanguageDetect_Exception
1532 private static function getLanguage(array $item)
1534 if (!in_array($item['gravity'], [GRAVITY_PARENT, GRAVITY_COMMENT]) || empty($item['body'])) {
1538 // Convert attachments to links
1539 $naked_body = BBCode::removeAttachment($item['body']);
1540 if (empty($naked_body)) {
1544 // Remove links and pictures
1545 $naked_body = BBCode::removeLinks($naked_body);
1547 // Convert the title and the body to plain text
1548 $naked_body = trim($item['title'] . "\n" . BBCode::toPlaintext($naked_body));
1550 // Remove possibly remaining links
1551 $naked_body = preg_replace(Strings::autoLinkRegEx(), '', $naked_body);
1553 if (empty($naked_body)) {
1557 $ld = new Language(DI::l10n()->getAvailableLanguages());
1558 $languages = $ld->detect($naked_body)->limit(0, 3)->close();
1559 if (is_array($languages)) {
1560 return json_encode($languages);
1566 public static function getLanguageMessage(array $item)
1568 $iso639 = new \Matriphe\ISO639\ISO639;
1570 $used_languages = '';
1571 foreach (json_decode($item['language'], true) as $language => $reliability) {
1572 $used_languages .= $iso639->languageByCode1($language) . ' (' . $language . "): " . number_format($reliability, 5) . '\n';
1574 $used_languages = DI::l10n()->t('Detected languages in this post:\n%s', $used_languages);
1575 return $used_languages;
1579 * Creates an unique guid out of a given uri
1581 * @param string $uri uri of an item entry
1582 * @param string $host hostname for the GUID prefix
1583 * @return string unique guid
1585 public static function guidFromUri($uri, $host)
1587 // Our regular guid routine is using this kind of prefix as well
1588 // We have to avoid that different routines could accidentally create the same value
1589 $parsed = parse_url($uri);
1591 // We use a hash of the hostname as prefix for the guid
1592 $guid_prefix = hash("crc32", $host);
1594 // Remove the scheme to make sure that "https" and "http" doesn't make a difference
1595 unset($parsed["scheme"]);
1597 // Glue it together to be able to make a hash from it
1598 $host_id = implode("/", $parsed);
1600 // We could use any hash algorithm since it isn't a security issue
1601 $host_hash = hash("ripemd128", $host_id);
1603 return $guid_prefix.$host_hash;
1607 * generate an unique URI
1609 * @param integer $uid User id
1610 * @param string $guid An existing GUID (Otherwise it will be generated)
1613 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1615 public static function newURI($uid, $guid = "")
1618 $guid = System::createUUID();
1621 return DI::baseUrl()->get() . '/objects/' . $guid;
1625 * Set "success_update" and "last-item" to the date of the last time we heard from this contact
1627 * This can be used to filter for inactive contacts.
1628 * Only do this for public postings to avoid privacy problems, since poco data is public.
1629 * Don't set this value if it isn't from the owner (could be an author that we don't know)
1631 * @param array $arr Contains the just posted item record
1632 * @throws \Exception
1634 private static function updateContact($arr)
1636 // Unarchive the author
1637 $contact = DBA::selectFirst('contact', [], ['id' => $arr["author-id"]]);
1638 if (DBA::isResult($contact)) {
1639 Contact::unmarkForArchival($contact);
1642 // Unarchive the contact if it's not our own contact
1643 $contact = DBA::selectFirst('contact', [], ['id' => $arr["contact-id"], 'self' => false]);
1644 if (DBA::isResult($contact)) {
1645 Contact::unmarkForArchival($contact);
1648 /// @todo On private posts we could obfuscate the date
1649 $update = ($arr['private'] != self::PRIVATE) || in_array($arr['network'], Protocol::FEDERATED);
1651 // Is it a forum? Then we don't care about the rules from above
1652 if (!$update && in_array($arr["network"], [Protocol::ACTIVITYPUB, Protocol::DFRN]) && ($arr["parent-uri-id"] === $arr["uri-id"])) {
1653 if (DBA::exists('contact', ['id' => $arr['contact-id'], 'forum' => true])) {
1659 // The "self" contact id is used (for example in the connectors) when the contact is unknown
1660 // So we have to ensure to only update the last item when it had been our own post,
1661 // or it had been done by a "regular" contact.
1662 if (!empty($arr['wall'])) {
1663 $condition = ['id' => $arr['contact-id']];
1665 $condition = ['id' => $arr['contact-id'], 'self' => false];
1667 DBA::update('contact', ['failed' => false, 'success_update' => $arr['received'], 'last-item' => $arr['received']], $condition);
1669 // Now do the same for the system wide contacts with uid=0
1670 if ($arr['private'] != self::PRIVATE) {
1671 DBA::update('contact', ['failed' => false, 'success_update' => $arr['received'], 'last-item' => $arr['received']],
1672 ['id' => $arr['owner-id']]);
1674 if ($arr['owner-id'] != $arr['author-id']) {
1675 DBA::update('contact', ['failed' => false, 'success_update' => $arr['received'], 'last-item' => $arr['received']],
1676 ['id' => $arr['author-id']]);
1681 public static function setHashtags($body)
1683 $body = BBCode::performWithEscapedTags($body, ['noparse', 'pre', 'code', 'img'], function ($body) {
1684 $tags = BBCode::getTags($body);
1687 if (!count($tags)) {
1691 // This sorting is important when there are hashtags that are part of other hashtags
1692 // Otherwise there could be problems with hashtags like #test and #test2
1693 // Because of this we are sorting from the longest to the shortest tag.
1694 usort($tags, function ($a, $b) {
1695 return strlen($b) <=> strlen($a);
1698 $URLSearchString = "^\[\]";
1700 // All hashtags should point to the home server if "local_tags" is activated
1701 if (DI::config()->get('system', 'local_tags')) {
1702 $body = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1703 "#[url=" . DI::baseUrl() . "/search?tag=$2]$2[/url]", $body);
1706 // mask hashtags inside of url, bookmarks and attachments to avoid urls in urls
1707 $body = preg_replace_callback("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1709 return ("[url=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/url]");
1712 $body = preg_replace_callback("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism",
1714 return ("[bookmark=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/bookmark]");
1717 $body = preg_replace_callback("/\[attachment (.*)\](.*?)\[\/attachment\]/ism",
1719 return ("[attachment " . str_replace("#", "#", $match[1]) . "]" . $match[2] . "[/attachment]");
1722 // Repair recursive urls
1723 $body = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1726 foreach ($tags as $tag) {
1727 if ((strpos($tag, '#') !== 0) || strpos($tag, '[url=') || strlen($tag) < 2 || $tag[1] == '#') {
1731 $basetag = str_replace('_', ' ', substr($tag, 1));
1732 $newtag = '#[url=' . DI::baseUrl() . '/search?tag=' . $basetag . ']' . $basetag . '[/url]';
1734 $body = str_replace($tag, $newtag, $body);
1737 // Convert back the masked hashtags
1738 $body = str_replace("#", "#", $body);
1747 * look for mention tags and setup a second delivery chain for forum/community posts if appropriate
1750 * @param int $item_id
1751 * @return boolean true if item was deleted, else false
1752 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1753 * @throws \ImagickException
1755 private static function tagDeliver($uid, $item_id)
1759 $user = DBA::selectFirst('user', [], ['uid' => $uid]);
1760 if (!DBA::isResult($user)) {
1764 $community_page = (($user['page-flags'] == User::PAGE_FLAGS_COMMUNITY) ? true : false);
1765 $prvgroup = (($user['page-flags'] == User::PAGE_FLAGS_PRVGROUP) ? true : false);
1767 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $item_id]);
1768 if (!DBA::isResult($item)) {
1772 $link = Strings::normaliseLink(DI::baseUrl() . '/profile/' . $user['nickname']);
1775 * Diaspora uses their own hardwired link URL in @-tags
1776 * instead of the one we supply with webfinger
1778 $dlink = Strings::normaliseLink(DI::baseUrl() . '/u/' . $user['nickname']);
1780 $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism', $item['body'], $matches, PREG_SET_ORDER);
1782 foreach ($matches as $mtch) {
1783 if (Strings::compareLink($link, $mtch[1]) || Strings::compareLink($dlink, $mtch[1])) {
1785 Logger::log('mention found: ' . $mtch[2]);
1791 $tags = Tag::getByURIId($item['uri-id'], [Tag::MENTION, Tag::EXCLUSIVE_MENTION]);
1792 foreach ($tags as $tag) {
1793 if (Strings::compareLink($link, $tag['url']) || Strings::compareLink($dlink, $tag['url'])) {
1795 DI::logger()->info('mention found in tag.', ['url' => $tag['url']]);
1801 if (($community_page || $prvgroup) &&
1802 !$item['wall'] && !$item['origin'] && ($item['gravity'] == GRAVITY_PARENT)) {
1803 Logger::info('Delete private group/communiy top-level item without mention', ['id' => $item_id, 'guid'=> $item['guid']]);
1804 DBA::delete('item', ['uri-id' => $item['uri-id'], 'uid' => $item['uid']]);
1805 Post\User::delete(['uri-id' => $item['uri-id'], 'uid' => $item['uid']]);
1811 $arr = ['item' => $item, 'user' => $user];
1813 Hook::callAll('tagged', $arr);
1815 if (!$community_page && !$prvgroup) {
1820 * tgroup delivery - setup a second delivery chain
1821 * prevent delivery looping - only proceed
1822 * if the message originated elsewhere and is a top-level post
1824 if ($item['wall'] || $item['origin'] || ($item['id'] != $item['parent'])) {
1828 // now change this copy of the post to a forum head message and deliver to all the tgroup members
1829 $self = DBA::selectFirst('contact', ['id', 'name', 'url', 'thumb'], ['uid' => $uid, 'self' => true]);
1830 if (!DBA::isResult($self)) {
1834 $owner_id = Contact::getIdForURL($self['url']);
1836 // also reset all the privacy bits to the forum default permissions
1838 $private = ($user['allow_cid'] || $user['allow_gid'] || $user['deny_cid'] || $user['deny_gid']) ? self::PRIVATE : self::PUBLIC;
1840 $psid = PermissionSet::getIdFromACL(
1848 $forum_mode = ($prvgroup ? 2 : 1);
1850 $fields = ['wall' => true, 'origin' => true, 'forum_mode' => $forum_mode, 'contact-id' => $self['id'],
1851 'owner-id' => $owner_id, 'private' => $private, 'psid' => $psid];
1852 self::update($fields, ['id' => $item_id]);
1854 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], 'Notifier', Delivery::POST, $item_id);
1856 self::performActivity($item_id, 'announce', $uid);
1862 * Automatically reshare the item if the "remote_self" option is selected
1864 * @param array $item
1867 private static function autoReshare(array $item)
1869 if ($item['gravity'] != GRAVITY_PARENT) {
1873 if (!DBA::exists('contact', ['id' => $item['contact-id'], 'remote_self' => Contact::MIRROR_NATIVE_RESHARE])) {
1877 if (!in_array($item['network'], [Protocol::ACTIVITYPUB, Protocol::DFRN])) {
1881 Logger::info('Automatically reshare item', ['uid' => $item['uid'], 'id' => $item['id'], 'guid' => $item['guid'], 'uri-id' => $item['uri-id']]);
1883 self::performActivity($item['id'], 'announce', $item['uid']);
1886 public static function isRemoteSelf($contact, &$datarray)
1888 if (!$contact['remote_self']) {
1892 // Prevent the forwarding of posts that are forwarded
1893 if (!empty($datarray["extid"]) && ($datarray["extid"] == Protocol::DFRN)) {
1894 Logger::info('Already forwarded');
1898 // Prevent to forward already forwarded posts
1899 if ($datarray["app"] == DI::baseUrl()->getHostname()) {
1900 Logger::info('Already forwarded (second test)');
1904 // Only forward posts
1905 if ($datarray["verb"] != Activity::POST) {
1906 Logger::info('No post');
1910 if (($contact['network'] != Protocol::FEED) && ($datarray['private'] == self::PRIVATE)) {
1911 Logger::info('Not public');
1915 $datarray2 = $datarray;
1916 Logger::info('remote-self start', ['contact' => $contact['url'], 'remote_self'=> $contact['remote_self'], 'item' => $datarray]);
1917 if ($contact['remote_self'] == Contact::MIRROR_OWN_POST) {
1918 $self = DBA::selectFirst('contact', ['id', 'name', 'url', 'thumb'],
1919 ['uid' => $contact['uid'], 'self' => true]);
1920 if (DBA::isResult($self)) {
1921 $datarray['contact-id'] = $self["id"];
1923 $datarray['owner-name'] = $self["name"];
1924 $datarray['owner-link'] = $self["url"];
1925 $datarray['owner-avatar'] = $self["thumb"];
1927 $datarray['author-name'] = $datarray['owner-name'];
1928 $datarray['author-link'] = $datarray['owner-link'];
1929 $datarray['author-avatar'] = $datarray['owner-avatar'];
1931 unset($datarray['edited']);
1933 unset($datarray['network']);
1934 unset($datarray['owner-id']);
1935 unset($datarray['author-id']);
1938 if ($contact['network'] != Protocol::FEED) {
1939 $old_uri_id = $datarray["uri-id"] ?? 0;
1940 $datarray["guid"] = System::createUUID();
1941 unset($datarray["plink"]);
1942 $datarray["uri"] = self::newURI($contact['uid'], $datarray["guid"]);
1943 $datarray["uri-id"] = ItemURI::getIdByURI($datarray["uri"]);
1944 $datarray["extid"] = Protocol::DFRN;
1945 $urlpart = parse_url($datarray2['author-link']);
1946 $datarray["app"] = $urlpart["host"];
1947 if (!empty($old_uri_id)) {
1948 Post\Media::copy($old_uri_id, $datarray["uri-id"]);
1951 unset($datarray["parent-uri"]);
1952 unset($datarray["thr-parent"]);
1954 $datarray['private'] = self::PUBLIC;
1958 if ($contact['network'] != Protocol::FEED) {
1959 // Store the original post
1960 $result = self::insert($datarray2);
1961 Logger::info('remote-self post original item', ['contact' => $contact['url'], 'result'=> $result, 'item' => $datarray2]);
1963 $datarray["app"] = "Feed";
1967 // Trigger automatic reactions for addons
1968 $datarray['api_source'] = true;
1970 // We have to tell the hooks who we are - this really should be improved
1971 $_SESSION['authenticated'] = true;
1972 $_SESSION['uid'] = $contact['uid'];
1974 return (bool)$result;
1981 * @param array $item
1984 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1985 * @throws \ImagickException
1987 public static function fixPrivatePhotos($s, $uid, $item = null, $cid = 0)
1989 if (DI::config()->get('system', 'disable_embedded')) {
1993 Logger::info('check for photos');
1994 $site = substr(DI::baseUrl(), strpos(DI::baseUrl(), '://'));
1999 $img_start = strpos($orig_body, '[img');
2000 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
2001 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
2003 while (($img_st_close !== false) && ($img_len !== false)) {
2004 $img_st_close++; // make it point to AFTER the closing bracket
2005 $image = substr($orig_body, $img_start + $img_st_close, $img_len);
2007 Logger::info('found photo', ['image' => $image]);
2009 if (stristr($image, $site . '/photo/')) {
2010 // Only embed locally hosted photos
2012 $i = basename($image);
2013 $i = str_replace(['.jpg', '.png', '.gif'], ['', '', ''], $i);
2014 $x = strpos($i, '-');
2017 $res = substr($i, $x + 1);
2018 $i = substr($i, 0, $x);
2019 $photo = Photo::getPhotoForUser($uid, $i, $res);
2020 if (DBA::isResult($photo)) {
2022 * Check to see if we should replace this photo link with an embedded image
2023 * 1. No need to do so if the photo is public
2024 * 2. If there's a contact-id provided, see if they're in the access list
2025 * for the photo. If so, embed it.
2026 * 3. Otherwise, if we have an item, see if the item permissions match the photo
2027 * permissions, regardless of order but first check to see if they're an exact
2028 * match to save some processing overhead.
2030 if (self::hasPermissions($photo)) {
2032 $recips = self::enumeratePermissions($photo);
2033 if (in_array($cid, $recips)) {
2037 if (self::samePermissions($uid, $item, $photo)) {
2043 $photo_img = Photo::getImageForPhoto($photo);
2044 // If a custom width and height were specified, apply before embedding
2045 if (preg_match("/\[img\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
2046 Logger::info('scaling photo');
2048 $width = intval($match[1]);
2049 $height = intval($match[2]);
2051 $photo_img->scaleDown(max($width, $height));
2054 $data = $photo_img->asString();
2055 $type = $photo_img->getType();
2057 Logger::info('replacing photo');
2058 $image = 'data:' . $type . ';base64,' . base64_encode($data);
2059 Logger::debug('replaced', ['image' => $image]);
2065 $new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/img]';
2066 $orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/img]'));
2067 if ($orig_body === false) {
2071 $img_start = strpos($orig_body, '[img');
2072 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
2073 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
2076 $new_body = $new_body . $orig_body;
2081 private static function hasPermissions($obj)
2083 return !empty($obj['allow_cid']) || !empty($obj['allow_gid']) ||
2084 !empty($obj['deny_cid']) || !empty($obj['deny_gid']);
2087 private static function samePermissions($uid, $obj1, $obj2)
2089 // first part is easy. Check that these are exactly the same.
2090 if (($obj1['allow_cid'] == $obj2['allow_cid'])
2091 && ($obj1['allow_gid'] == $obj2['allow_gid'])
2092 && ($obj1['deny_cid'] == $obj2['deny_cid'])
2093 && ($obj1['deny_gid'] == $obj2['deny_gid'])) {
2097 // This is harder. Parse all the permissions and compare the resulting set.
2098 $recipients1 = self::enumeratePermissions($obj1);
2099 $recipients2 = self::enumeratePermissions($obj2);
2103 /// @TODO Comparison of arrays, maybe use array_diff_assoc() here?
2104 return ($recipients1 == $recipients2);
2108 * Returns an array of contact-ids that are allowed to see this object
2110 * @param array $obj Item array with at least uid, allow_cid, allow_gid, deny_cid and deny_gid
2111 * @param bool $check_dead Prunes unavailable contacts from the result
2113 * @throws \Exception
2115 public static function enumeratePermissions(array $obj, bool $check_dead = false)
2117 $aclFormater = DI::aclFormatter();
2119 $allow_people = $aclFormater->expand($obj['allow_cid']);
2120 $allow_groups = Group::expand($obj['uid'], $aclFormater->expand($obj['allow_gid']), $check_dead);
2121 $deny_people = $aclFormater->expand($obj['deny_cid']);
2122 $deny_groups = Group::expand($obj['uid'], $aclFormater->expand($obj['deny_gid']), $check_dead);
2123 $recipients = array_unique(array_merge($allow_people, $allow_groups));
2124 $deny = array_unique(array_merge($deny_people, $deny_groups));
2125 $recipients = array_diff($recipients, $deny);
2129 public static function expire(int $uid, int $days, string $network = "", bool $force = false)
2131 if (!$uid || ($days < 1)) {
2135 $condition = ["`uid` = ? AND NOT `deleted` AND `gravity` = ?",
2136 $uid, GRAVITY_PARENT];
2139 * $expire_network_only = save your own wall posts
2140 * and just expire conversations started by others
2142 $expire_network_only = DI::pConfig()->get($uid, 'expire', 'network_only', false);
2144 if ($expire_network_only) {
2145 $condition[0] .= " AND NOT `wall`";
2148 if ($network != "") {
2149 $condition[0] .= " AND `network` = ?";
2150 $condition[] = $network;
2153 $condition[0] .= " AND `received` < UTC_TIMESTAMP() - INTERVAL ? DAY";
2154 $condition[] = $days;
2156 $items = Post::select(['resource-id', 'starred', 'type', 'id', 'post-type', 'uid', 'uri-id'], $condition);
2158 if (!DBA::isResult($items)) {
2162 $expire_items = DI::pConfig()->get($uid, 'expire', 'items', true);
2164 // Forcing expiring of items - but not notes and marked items
2166 $expire_items = true;
2169 $expire_notes = DI::pConfig()->get($uid, 'expire', 'notes', true);
2170 $expire_starred = DI::pConfig()->get($uid, 'expire', 'starred', true);
2171 $expire_photos = DI::pConfig()->get($uid, 'expire', 'photos', false);
2175 $priority = DI::config()->get('system', 'expire-notify-priority');
2177 while ($item = Post::fetch($items)) {
2178 // don't expire filed items
2179 if (DBA::exists('post-category', ['uri-id' => $item['uri-id'], 'uid' => $item['uid'], 'type' => Post\Category::FILE])) {
2183 // Only expire posts, not photos and photo comments
2185 if (!$expire_photos && strlen($item['resource-id'])) {
2187 } elseif (!$expire_starred && intval($item['starred'])) {
2189 } elseif (!$expire_notes && (($item['type'] == 'note') || ($item['post-type'] == self::PT_PERSONAL_NOTE))) {
2191 } elseif (!$expire_items && ($item['type'] != 'note') && ($item['post-type'] != self::PT_PERSONAL_NOTE)) {
2195 self::markForDeletionById($item['id'], $priority);
2200 Logger::log('User ' . $uid . ": expired $expired items; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
2203 public static function firstPostDate($uid, $wall = false)
2205 $condition = ['uid' => $uid, 'wall' => $wall, 'deleted' => false, 'visible' => true, 'moderated' => false];
2206 $params = ['order' => ['received' => false]];
2207 $thread = DBA::selectFirst('thread', ['received'], $condition, $params);
2208 if (DBA::isResult($thread)) {
2209 return substr(DateTimeFormat::local($thread['received']), 0, 10);
2215 * add/remove activity to an item
2217 * Toggle activities as like,dislike,attend of an item
2219 * @param int $item_id
2220 * @param string $verb
2221 * Activity verb. One of
2222 * like, unlike, dislike, undislike, attendyes, unattendyes,
2223 * attendno, unattendno, attendmaybe, unattendmaybe,
2224 * announce, unannouce
2226 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2227 * @throws \ImagickException
2228 * @hook 'post_local_end'
2230 * 'post_id' => ID of posted item
2232 public static function performActivity(int $item_id, string $verb, int $uid)
2238 Logger::notice('Start create activity', ['verb' => $verb, 'item' => $item_id, 'user' => $uid]);
2240 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $item_id]);
2241 if (!DBA::isResult($item)) {
2242 Logger::log('like: unknown item ' . $item_id);
2246 $uri_id = $item['uri-id'];
2248 if (!in_array($item['uid'], [0, $uid])) {
2252 if (!Post::exists(['uri-id' => $item['parent-uri-id'], 'uid' => $uid])) {
2253 $stored = self::storeForUserByUriId($item['parent-uri-id'], $uid);
2254 if (($item['parent-uri-id'] == $item['uri-id']) && !empty($stored)) {
2255 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $stored]);
2256 if (!DBA::isResult($item)) {
2257 Logger::info('Could not fetch just created item - should not happen', ['stored' => $stored, 'uid' => $uid, 'uri-id' => $uri_id]);
2263 // Retrieves the local post owner
2264 $owner = User::getOwnerDataById($uid);
2265 if (empty($owner)) {
2266 Logger::info('Empty owner for user', ['uid' => $uid]);
2270 // Retrieve the current logged in user's public contact
2271 $author_id = Contact::getIdForURL($owner['url']);
2272 if (empty($author_id)) {
2273 Logger::info('Empty public contact');
2281 $activity = Activity::LIKE;
2285 $activity = Activity::DISLIKE;
2289 $activity = Activity::ATTEND;
2293 $activity = Activity::ATTENDNO;
2296 case 'unattendmaybe':
2297 $activity = Activity::ATTENDMAYBE;
2301 $activity = Activity::FOLLOW;
2305 $activity = Activity::ANNOUNCE;
2308 Logger::notice('unknown verb', ['verb' => $verb, 'item' => $item_id]);
2312 $mode = Strings::startsWith($verb, 'un') ? 'delete' : 'create';
2314 // Enable activity toggling instead of on/off
2315 $event_verb_flag = $activity === Activity::ATTEND || $activity === Activity::ATTENDNO || $activity === Activity::ATTENDMAYBE;
2317 // Look for an existing verb row
2318 // Event participation activities are mutually exclusive, only one of them can exist at all times.
2319 if ($event_verb_flag) {
2320 $verbs = [Activity::ATTEND, Activity::ATTENDNO, Activity::ATTENDMAYBE];
2322 // Translate to the index based activity index
2324 foreach ($verbs as $verb) {
2325 $vids[] = Verb::getID($verb);
2328 $vids = Verb::getID($activity);
2331 $condition = ['vid' => $vids, 'deleted' => false, 'gravity' => GRAVITY_ACTIVITY,
2332 'author-id' => $author_id, 'uid' => $item['uid'], 'thr-parent-id' => $uri_id];
2333 $like_item = Post::selectFirst(['id', 'guid', 'verb'], $condition);
2335 if (DBA::isResult($like_item)) {
2337 * Truth table for existing activities
2339 * | Inputs || Outputs |
2340 * |----------------------------||-------------------|
2341 * | Mode | Event | Same verb || Delete? | Return? |
2342 * |--------|-------|-----------||---------|---------|
2343 * | create | Yes | Yes || No | Yes |
2344 * | create | Yes | No || Yes | No |
2345 * | create | No | Yes || No | Yes |
2346 * | create | No | No || N/A†|
2347 * | delete | Yes | Yes || Yes | N/A‡ |
2348 * | delete | Yes | No || No | N/A‡ |
2349 * | delete | No | Yes || Yes | N/A‡ |
2350 * | delete | No | No || N/A†|
2351 * |--------|-------|-----------||---------|---------|
2352 * | A | B | C || A xor C | !B or C |
2354 * †Can't happen: It's impossible to find an existing non-event activity without
2355 * the same verb because we are only looking for this single verb.
2357 * ‡ The "mode = delete" is returning early whether an existing activity was found or not.
2359 if ($mode == 'create' xor $like_item['verb'] == $activity) {
2360 self::markForDeletionById($like_item['id']);
2363 if (!$event_verb_flag || $like_item['verb'] == $activity) {
2368 // No need to go further if we aren't creating anything
2369 if ($mode == 'delete') {
2373 $objtype = $item['resource-id'] ? Activity\ObjectType::IMAGE : Activity\ObjectType::NOTE;
2376 'guid' => System::createUUID(),
2377 'uri' => self::newURI($item['uid']),
2378 'uid' => $item['uid'],
2379 'contact-id' => $owner['id'],
2380 'wall' => $item['wall'],
2382 'network' => Protocol::DFRN,
2383 'protocol' => Conversation::PARCEL_DIRECT,
2384 'direction' => Conversation::PUSH,
2385 'gravity' => GRAVITY_ACTIVITY,
2386 'parent' => $item['id'],
2387 'thr-parent' => $item['uri'],
2388 'owner-id' => $author_id,
2389 'author-id' => $author_id,
2390 'body' => $activity,
2391 'verb' => $activity,
2392 'object-type' => $objtype,
2393 'allow_cid' => $item['allow_cid'],
2394 'allow_gid' => $item['allow_gid'],
2395 'deny_cid' => $item['deny_cid'],
2396 'deny_gid' => $item['deny_gid'],
2401 $signed = Diaspora::createLikeSignature($uid, $new_item);
2402 if (!empty($signed)) {
2403 $new_item['diaspora_signed_text'] = json_encode($signed);
2406 $new_item_id = self::insert($new_item);
2408 // If the parent item isn't visible then set it to visible
2409 if (!$item['visible']) {
2410 self::update(['visible' => true], ['id' => $item['id']]);
2413 $new_item['id'] = $new_item_id;
2415 Hook::callAll('post_local_end', $new_item);
2420 private static function addThread($itemid, $onlyshadow = false)
2422 $fields = ['uid', 'created', 'edited', 'commented', 'received', 'changed', 'wall', 'private', 'pubmail',
2423 'moderated', 'visible', 'starred', 'contact-id', 'post-type', 'uri-id',
2424 'deleted', 'origin', 'forum_mode', 'mention', 'network', 'author-id', 'owner-id'];
2425 $condition = ["`id` = ? AND (`parent` = ? OR `parent` = 0)", $itemid, $itemid];
2426 $item = Post::selectFirst($fields, $condition);
2428 if (!DBA::isResult($item)) {
2432 $item['iid'] = $itemid;
2435 $result = DBA::replace('thread', $item);
2437 Logger::info('Add thread', ['item' => $itemid, 'result' => $result]);
2441 private static function updateThread($itemid, $setmention = false)
2443 $fields = ['uid', 'guid', 'created', 'edited', 'commented', 'received', 'changed', 'post-type',
2444 'wall', 'private', 'pubmail', 'moderated', 'visible', 'starred', 'contact-id', 'uri-id',
2445 'deleted', 'origin', 'forum_mode', 'network', 'author-id', 'owner-id'];
2447 $item = Post::selectFirst($fields, ['id' => $itemid, 'gravity' => GRAVITY_PARENT]);
2448 if (!DBA::isResult($item)) {
2453 $item["mention"] = 1;
2458 foreach ($item as $field => $data) {
2459 if (!in_array($field, ["guid"])) {
2460 $fields[$field] = $data;
2464 $result = DBA::update('thread', $fields, ['iid' => $itemid]);
2466 Logger::info('Update thread', ['item' => $itemid, 'guid' => $item["guid"], 'result' => $result]);
2469 private static function deleteThread($itemid, $uri_id)
2471 $item = DBA::selectFirst('thread', ['uid'], ['iid' => $itemid]);
2472 if (!DBA::isResult($item)) {
2473 Logger::info('No thread found', ['id' => $itemid]);
2477 $result = DBA::delete('thread', ['iid' => $itemid], ['cascade' => false]);
2479 Logger::info('Deleted thread', ['item' => $itemid, 'result' => $result]);
2481 $condition = ["`uri-id` = ? AND NOT `deleted` AND NOT (`uid` IN (?, 0))", $uri_id, $item["uid"]];
2482 if (!Post::exists($condition)) {
2483 DBA::delete('item', ['uri-id' => $uri_id, 'uid' => 0]);
2484 Post\User::delete(['uri-id' => $uri_id, 'uid' => 0]);
2485 Logger::debug('Deleted shadow item', ['id' => $itemid, 'uri-id' => $uri_id]);
2490 * Fetch the SQL condition for the given user id
2492 * @param integer $owner_id User ID for which the permissions should be fetched
2493 * @return array condition
2495 public static function getPermissionsConditionArrayByUserId(int $owner_id)
2497 $local_user = local_user();
2498 $remote_user = Session::getRemoteContactID($owner_id);
2500 // default permissions - anonymous user
2501 $condition = ["`private` != ?", self::PRIVATE];
2503 if ($local_user && ($local_user == $owner_id)) {
2504 // Profile owner - everything is visible
2506 } elseif ($remote_user) {
2507 // Authenticated visitor - fetch the matching permissionsets
2508 $set = PermissionSet::get($owner_id, $remote_user);
2510 $condition = ["(`private` != ? OR (`private` = ? AND `wall`
2511 AND `psid` IN (" . implode(', ', array_fill(0, count($set), '?')) . ")))",
2512 self::PRIVATE, self::PRIVATE];
2513 $condition = array_merge($condition, $set);
2521 * Get a permission SQL string for the given user
2523 * @param int $owner_id
2524 * @param string $table
2527 public static function getPermissionsSQLByUserId(int $owner_id, string $table = '')
2529 $local_user = local_user();
2530 $remote_user = Session::getRemoteContactID($owner_id);
2532 if (!empty($table)) {
2533 $table = DBA::quoteIdentifier($table) . '.';
2537 * Construct permissions
2539 * default permissions - anonymous user
2541 $sql = sprintf(" AND " . $table . "`private` != %d", self::PRIVATE);
2543 // Profile owner - everything is visible
2544 if ($local_user && ($local_user == $owner_id)) {
2546 } elseif ($remote_user) {
2548 * Authenticated visitor. Unless pre-verified,
2549 * check that the contact belongs to this $owner_id
2550 * and load the groups the visitor belongs to.
2551 * If pre-verified, the caller is expected to have already
2552 * done this and passed the groups into this function.
2554 $set = PermissionSet::get($owner_id, $remote_user);
2557 $sql_set = sprintf(" OR (" . $table . "`private` = %d AND " . $table . "`wall` AND " . $table . "`psid` IN (", self::PRIVATE) . implode(',', $set) . "))";
2562 $sql = sprintf(" AND (" . $table . "`private` != %d", self::PRIVATE) . $sql_set . ")";
2569 * get translated item type
2574 public static function postType($item)
2576 if (!empty($item['event-id'])) {
2577 return DI::l10n()->t('event');
2578 } elseif (!empty($item['resource-id'])) {
2579 return DI::l10n()->t('photo');
2580 } elseif ($item['gravity'] == GRAVITY_ACTIVITY) {
2581 return DI::l10n()->t('activity');
2582 } elseif ($item['gravity'] == GRAVITY_COMMENT) {
2583 return DI::l10n()->t('comment');
2586 return DI::l10n()->t('post');
2590 * Sets the "rendered-html" field of the provided item
2592 * Body is preserved to avoid side-effects as we modify it just-in-time for spoilers and private image links
2594 * @param array $item
2595 * @param bool $update
2597 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2598 * @todo Remove reference, simply return "rendered-html" and "rendered-hash"
2600 public static function putInCache(&$item, $update = false)
2602 // Save original body to prevent addons to modify it
2603 $body = $item['body'];
2605 $rendered_hash = $item['rendered-hash'] ?? '';
2606 $rendered_html = $item['rendered-html'] ?? '';
2608 if ($rendered_hash == ''
2609 || $rendered_html == ''
2610 || $rendered_hash != hash('md5', BBCode::VERSION . '::' . $body)
2611 || DI::config()->get('system', 'ignore_cache')
2613 self::addRedirToImageTags($item);
2615 $item['rendered-html'] = BBCode::convert($item['body']);
2616 $item['rendered-hash'] = hash('md5', BBCode::VERSION . '::' . $body);
2618 $hook_data = ['item' => $item, 'rendered-html' => $item['rendered-html'], 'rendered-hash' => $item['rendered-hash']];
2619 Hook::callAll('put_item_in_cache', $hook_data);
2620 $item['rendered-html'] = $hook_data['rendered-html'];
2621 $item['rendered-hash'] = $hook_data['rendered-hash'];
2624 // Force an update if the generated values differ from the existing ones
2625 if ($rendered_hash != $item['rendered-hash']) {
2629 // Only compare the HTML when we forcefully ignore the cache
2630 if (DI::config()->get('system', 'ignore_cache') && ($rendered_html != $item['rendered-html'])) {
2634 if ($update && !empty($item['id'])) {
2637 'rendered-html' => $item['rendered-html'],
2638 'rendered-hash' => $item['rendered-hash']
2640 ['id' => $item['id']]
2645 $item['body'] = $body;
2649 * Find any non-embedded images in private items and add redir links to them
2651 * @param array &$item The field array of an item row
2653 private static function addRedirToImageTags(array &$item)
2658 $cnt = preg_match_all('|\[img\](http[^\[]*?/photo/[a-fA-F0-9]+?(-[0-9]\.[\w]+?)?)\[\/img\]|', $item['body'], $matches, PREG_SET_ORDER);
2660 foreach ($matches as $mtch) {
2661 if (strpos($mtch[1], '/redir') !== false) {
2665 if ((local_user() == $item['uid']) && ($item['private'] == self::PRIVATE) && ($item['contact-id'] != $app->contact['id']) && ($item['network'] == Protocol::DFRN)) {
2666 $img_url = 'redir/' . $item['contact-id'] . '?url=' . urlencode($mtch[1]);
2667 $item['body'] = str_replace($mtch[0], '[img]' . $img_url . '[/img]', $item['body']);
2674 * Given an item array, convert the body element from bbcode to html and add smilie icons.
2675 * If attach is true, also add icons for item attachments.
2677 * @param array $item
2678 * @param boolean $attach
2679 * @param boolean $is_preview
2680 * @return string item body html
2681 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2682 * @throws \ImagickException
2683 * @hook prepare_body_init item array before any work
2684 * @hook prepare_body_content_filter ('item'=>item array, 'filter_reasons'=>string array) before first bbcode to html
2685 * @hook prepare_body ('item'=>item array, 'html'=>body string, 'is_preview'=>boolean, 'filter_reasons'=>string array) after first bbcode to html
2686 * @hook prepare_body_final ('item'=>item array, 'html'=>body string) after attach icons and blockquote special case handling (spoiler, author)
2688 public static function prepareBody(array &$item, $attach = false, $is_preview = false)
2691 Hook::callAll('prepare_body_init', $item);
2693 // In order to provide theme developers more possibilities, event items
2694 // are treated differently.
2695 if ($item['object-type'] === Activity\ObjectType::EVENT && isset($item['event-id'])) {
2696 $ev = Event::getItemHTML($item);
2700 $tags = Tag::populateFromItem($item);
2702 $item['tags'] = $tags['tags'];
2703 $item['hashtags'] = $tags['hashtags'];
2704 $item['mentions'] = $tags['mentions'];
2706 // Compile eventual content filter reasons
2707 $filter_reasons = [];
2708 if (!$is_preview && public_contact() != $item['author-id']) {
2709 if (!empty($item['content-warning']) && (!local_user() || !DI::pConfig()->get(local_user(), 'system', 'disable_cw', false))) {
2710 $filter_reasons[] = DI::l10n()->t('Content warning: %s', $item['content-warning']);
2715 'filter_reasons' => $filter_reasons
2717 Hook::callAll('prepare_body_content_filter', $hook_data);
2718 $filter_reasons = $hook_data['filter_reasons'];
2722 // Update the cached values if there is no "zrl=..." on the links.
2723 $update = (!Session::isAuthenticated() && ($item["uid"] == 0));
2725 // Or update it if the current viewer is the intented viewer.
2726 if (($item["uid"] == local_user()) && ($item["uid"] != 0)) {
2730 self::putInCache($item, $update);
2731 $s = $item["rendered-html"];
2736 'preview' => $is_preview,
2737 'filter_reasons' => $filter_reasons
2739 Hook::callAll('prepare_body', $hook_data);
2740 $s = $hook_data['html'];
2744 // Replace the blockquotes with quotes that are used in mails.
2745 $mailquote = '<blockquote type="cite" class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">';
2746 $s = str_replace(['<blockquote>', '<blockquote class="spoiler">', '<blockquote class="author">'], [$mailquote, $mailquote, $mailquote], $s);
2752 foreach (Post\Media::getByURIId($item['uri-id'], [Post\Media::DOCUMENT, Post\Media::TORRENT, Post\Media::UNKNOWN]) as $attachment) {
2753 $mime = $attachment['mimetype'];
2755 $the_url = Contact::magicLinkById($item['author-id'], $attachment['url']);
2757 if (strpos($mime, 'video') !== false) {
2760 DI::page()['htmlhead'] .= Renderer::replaceMacros(Renderer::getMarkupTemplate('videos_head.tpl'));
2763 $as .= Renderer::replaceMacros(Renderer::getMarkupTemplate('video_top.tpl'), [
2765 'id' => $item['author-id'],
2766 'title' => DI::l10n()->t('View Video'),
2773 $filetype = strtolower(substr($mime, 0, strpos($mime, '/')));
2775 $filesubtype = strtolower(substr($mime, strpos($mime, '/') + 1));
2776 $filesubtype = str_replace('.', '-', $filesubtype);
2779 $filesubtype = 'unkn';
2782 $title = Strings::escapeHtml(trim(($attachment['description'] ?? '') ?: $attachment['url']));
2783 $title .= ' ' . ($attachment['size'] ?? 0) . ' ' . DI::l10n()->t('bytes');
2785 $icon = '<div class="attachtype icon s22 type-' . $filetype . ' subtype-' . $filesubtype . '"></div>';
2786 $as .= '<a href="' . strip_tags($the_url) . '" title="' . $title . '" class="attachlink" target="_blank" rel="noopener noreferrer" >' . $icon . '</a>';
2790 $s .= '<div class="body-attach">'.$as.'<div class="clear"></div></div>';
2794 if (strpos($s, '<div class="map">') !== false && !empty($item['coord'])) {
2795 $x = Map::byCoordinates(trim($item['coord']));
2797 $s = preg_replace('/\<div class\=\"map\"\>/', '$0' . $x, $s);
2801 // Replace friendica image url size with theme preference.
2802 if (!empty($a->theme_info['item_image_size'])) {
2803 $ps = $a->theme_info['item_image_size'];
2804 $s = preg_replace('|(<img[^>]+src="[^"]+/photo/[0-9a-f]+)-[0-9]|', "$1-" . $ps, $s);
2807 $s = HTML::applyContentFilter($s, $filter_reasons);
2809 $hook_data = ['item' => $item, 'html' => $s];
2810 Hook::callAll('prepare_body_final', $hook_data);
2812 return $hook_data['html'];
2816 * get private link for item
2818 * @param array $item
2819 * @return boolean|array False if item has not plink, otherwise array('href'=>plink url, 'title'=>translated title)
2820 * @throws \Exception
2822 public static function getPlink($item)
2826 'href' => "display/" . $item['guid'],
2827 'orig' => "display/" . $item['guid'],
2828 'title' => DI::l10n()->t('View on separate page'),
2829 'orig_title' => DI::l10n()->t('view on separate page'),
2832 if (!empty($item['plink'])) {
2833 $ret["href"] = DI::baseUrl()->remove($item['plink']);
2834 $ret["title"] = DI::l10n()->t('link to source');
2836 } elseif (!empty($item['plink']) && ($item['private'] != self::PRIVATE)) {
2838 'href' => $item['plink'],
2839 'orig' => $item['plink'],
2840 'title' => DI::l10n()->t('link to source'),
2850 * Is the given item array a post that is sent as starting post to a forum?
2852 * @param array $item
2853 * @param array $owner
2855 * @return boolean "true" when it is a forum post
2857 public static function isForumPost(array $item, array $owner = [])
2859 if (empty($owner)) {
2860 $owner = User::getOwnerDataById($item['uid']);
2861 if (empty($owner)) {
2866 if (($item['author-id'] == $item['owner-id']) ||
2867 ($owner['id'] == $item['contact-id']) ||
2868 ($item['uri-id'] != $item['parent-uri-id']) ||
2873 return Contact::isForum($item['contact-id']);
2877 * Search item id for given URI or plink
2879 * @param string $uri
2880 * @param integer $uid
2882 * @return integer item id
2884 public static function searchByLink($uri, $uid = 0)
2886 $ssl_uri = str_replace('http://', 'https://', $uri);
2887 $uris = [$uri, $ssl_uri, Strings::normaliseLink($uri)];
2889 $item = Post::selectFirst(['id'], ['uri' => $uris, 'uid' => $uid]);
2890 if (DBA::isResult($item)) {
2894 $item = Post::selectFirst(['id'], ['plink' => $uris, 'uid' => $uid]);
2895 if (DBA::isResult($item)) {
2903 * Return the URI for a link to the post
2905 * @param string $uri URI or link to post
2907 * @return string URI
2909 public static function getURIByLink(string $uri)
2911 $ssl_uri = str_replace('http://', 'https://', $uri);
2912 $uris = [$uri, $ssl_uri, Strings::normaliseLink($uri)];
2914 $item = Post::selectFirst(['uri'], ['uri' => $uris]);
2915 if (DBA::isResult($item)) {
2916 return $item['uri'];
2919 $item = Post::selectFirst(['uri'], ['plink' => $uris]);
2920 if (DBA::isResult($item)) {
2921 return $item['uri'];
2928 * Fetches item for given URI or plink
2930 * @param string $uri
2931 * @param integer $uid
2933 * @return integer item id
2935 public static function fetchByLink(string $uri, int $uid = 0)
2937 Logger::info('Trying to fetch link', ['uid' => $uid, 'uri' => $uri]);
2938 $item_id = self::searchByLink($uri, $uid);
2939 if (!empty($item_id)) {
2940 Logger::info('Link found', ['uid' => $uid, 'uri' => $uri, 'id' => $item_id]);
2944 if ($fetched_uri = ActivityPub\Processor::fetchMissingActivity($uri)) {
2945 $item_id = self::searchByLink($fetched_uri, $uid);
2947 $item_id = Diaspora::fetchByURL($uri);
2950 if (!empty($item_id)) {
2951 Logger::info('Link fetched', ['uid' => $uid, 'uri' => $uri, 'id' => $item_id]);
2955 Logger::info('Link not found', ['uid' => $uid, 'uri' => $uri]);
2960 * Return share data from an item array (if the item is shared item)
2961 * We are providing the complete Item array, because at some time in the future
2962 * we hopefully will define these values not in the body anymore but in some item fields.
2963 * This function is meant to replace all similar functions in the system.
2965 * @param array $item
2967 * @return array with share information
2969 public static function getShareArray($item)
2971 if (!preg_match("/(.*?)\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism", $item['body'], $matches)) {
2975 $attribute_string = $matches[2];
2976 $attributes = ['comment' => trim($matches[1]), 'shared' => trim($matches[3])];
2977 foreach (['author', 'profile', 'avatar', 'guid', 'posted', 'link'] as $field) {
2978 if (preg_match("/$field=(['\"])(.+?)\\1/ism", $attribute_string, $matches)) {
2979 $attributes[$field] = trim(html_entity_decode($matches[2] ?? '', ENT_QUOTES, 'UTF-8'));
2986 * Fetch item information for shared items from the original items and adds it.
2988 * @param array $item
2990 * @return array item array with data from the original item
2992 public static function addShareDataFromOriginal(array $item)
2994 $shared = self::getShareArray($item);
2995 if (empty($shared)) {
2999 // Real reshares always have got a GUID.
3000 if (empty($shared['guid'])) {
3004 $uid = $item['uid'] ?? 0;
3006 // first try to fetch the item via the GUID. This will work for all reshares that had been created on this system
3007 $shared_item = Post::selectFirst(['title', 'body'], ['guid' => $shared['guid'], 'uid' => [0, $uid]]);
3008 if (!DBA::isResult($shared_item)) {
3009 if (empty($shared['link'])) {
3013 // Otherwhise try to find (and possibly fetch) the item via the link. This should work for Diaspora and ActivityPub posts
3014 $id = self::fetchByLink($shared['link'] ?? '', $uid);
3016 Logger::info('Original item not found', ['url' => $shared['link'] ?? '', 'callstack' => System::callstack()]);
3020 $shared_item = Post::selectFirst(['title', 'body'], ['id' => $id]);
3021 if (!DBA::isResult($shared_item)) {
3024 Logger::info('Got shared data from url', ['url' => $shared['link'], 'callstack' => System::callstack()]);
3026 Logger::info('Got shared data from guid', ['guid' => $shared['guid'], 'callstack' => System::callstack()]);
3029 if (!empty($shared_item['title'])) {
3030 $body = '[h3]' . $shared_item['title'] . "[/h3]\n" . $shared_item['body'];
3031 unset($shared_item['title']);
3033 $body = $shared_item['body'];
3036 $item['body'] = preg_replace("/\[share ([^\[\]]*)\].*\[\/share\]/ism", '[share $1]' . $body . '[/share]', $item['body']);
3037 unset($shared_item['body']);
3039 return array_merge($item, $shared_item);
3043 * Check a prospective item array against user-level permissions
3045 * @param array $item Expected keys: uri, gravity, and
3046 * author-link if is author-id is set,
3047 * owner-link if is owner-id is set,
3048 * causer-link if is causer-id is set.
3049 * @param int $user_id Local user ID
3051 * @throws \Exception
3053 protected static function isAllowedByUser(array $item, int $user_id)
3055 if (!empty($item['author-id']) && Contact\User::isBlocked($item['author-id'], $user_id)) {
3056 Logger::notice('Author is blocked by user', ['author-link' => $item['author-link'], 'uid' => $user_id, 'item-uri' => $item['uri']]);
3060 if (!empty($item['owner-id']) && Contact\User::isBlocked($item['owner-id'], $user_id)) {
3061 Logger::notice('Owner is blocked by user', ['owner-link' => $item['owner-link'], 'uid' => $user_id, 'item-uri' => $item['uri']]);
3065 // The causer is set during a thread completion, for example because of a reshare. It countains the responsible actor.
3066 if (!empty($item['causer-id']) && Contact\User::isBlocked($item['causer-id'], $user_id)) {
3067 Logger::notice('Causer is blocked by user', ['causer-link' => $item['causer-link'] ?? $item['causer-id'], 'uid' => $user_id, 'item-uri' => $item['uri']]);
3071 if (!empty($item['causer-id']) && ($item['gravity'] === GRAVITY_PARENT) && Contact\User::isIgnored($item['causer-id'], $user_id)) {
3072 Logger::notice('Causer is ignored by user', ['causer-link' => $item['causer-link'] ?? $item['causer-id'], 'uid' => $user_id, 'item-uri' => $item['uri']]);