3 * @copyright Copyright (C) 2010-2021, the Friendica project
5 * @license GNU AGPL version 3 or any later version
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU Affero General Public License as
9 * published by the Free Software Foundation, either version 3 of the
10 * License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU Affero General Public License for more details.
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <https://www.gnu.org/licenses/>.
22 namespace Friendica\Model;
24 use Friendica\Content\PageInfo;
25 use Friendica\Content\Text\BBCode;
26 use Friendica\Content\Text\HTML;
27 use Friendica\Core\Hook;
28 use Friendica\Core\Logger;
29 use Friendica\Core\Protocol;
30 use Friendica\Core\Renderer;
31 use Friendica\Core\Session;
32 use Friendica\Core\System;
33 use Friendica\Model\Tag;
34 use Friendica\Core\Worker;
35 use Friendica\Database\DBA;
37 use Friendica\Model\Post;
38 use Friendica\Model\Post\Media;
39 use Friendica\Protocol\Activity;
40 use Friendica\Protocol\ActivityPub;
41 use Friendica\Protocol\Diaspora;
42 use Friendica\Util\DateTimeFormat;
43 use Friendica\Util\Map;
44 use Friendica\Util\Network;
45 use Friendica\Util\Strings;
46 use Friendica\Worker\Delivery;
47 use LanguageDetection\Language;
51 // Posting types, inspired by https://www.w3.org/TR/activitystreams-vocabulary/#object-types
58 const PT_DOCUMENT = 19;
60 const PT_PERSONAL_NOTE = 128;
62 // Posting reasons (Why had a post been stored for a user?)
69 const PR_FOLLOWER = 69;
70 const PR_ANNOUNCEMENT = 70;
71 const PR_COMMENT = 71;
75 const PR_FETCHED = 75;
77 // Field list that is used to display the items
78 const DISPLAY_FIELDLIST = [
79 'uid', 'id', 'parent', 'guid', 'network', 'gravity',
80 'uri-id', 'uri', 'thr-parent-id', 'thr-parent', 'parent-uri-id', 'parent-uri',
81 'commented', 'created', 'edited', 'received', 'verb', 'object-type', 'postopts', 'plink',
82 'wall', 'private', 'starred', 'origin', 'parent-origin', 'title', 'body', 'language',
83 'content-warning', 'location', 'coord', 'app', 'rendered-hash', 'rendered-html', 'object',
84 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid', 'mention',
85 'author-id', 'author-link', 'author-name', 'author-avatar', 'author-network',
86 'owner-id', 'owner-link', 'owner-name', 'owner-avatar', 'owner-network', 'owner-contact-type',
87 'causer-id', 'causer-link', 'causer-name', 'causer-avatar', 'causer-contact-type', 'causer-network',
88 'contact-id', 'contact-uid', 'contact-link', 'contact-name', 'contact-avatar',
89 'writable', 'self', 'cid', 'alias',
90 'event-created', 'event-edited', 'event-start', 'event-finish',
91 'event-summary', 'event-desc', 'event-location', 'event-type',
92 'event-nofinish', 'event-adjust', 'event-ignore', 'event-id',
93 'delivery_queue_count', 'delivery_queue_done', 'delivery_queue_failed'
96 // Field list that is used to deliver items via the protocols
97 const DELIVER_FIELDLIST = ['uid', 'id', 'parent', 'uri-id', 'uri', 'thr-parent', 'parent-uri', 'guid',
98 'parent-guid', 'received', 'created', 'edited', 'verb', 'object-type', 'object', 'target',
99 'private', 'title', 'body', 'raw-body', 'location', 'coord', 'app',
100 'inform', 'deleted', 'extid', 'post-type', 'post-reason', 'gravity',
101 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
102 'author-id', 'author-link', 'author-name', 'author-avatar', 'owner-id', 'owner-link', 'contact-uid',
103 'signed_text', 'network', 'wall', 'contact-id', 'plink', 'forum_mode', 'origin',
104 'thr-parent-id', 'parent-uri-id', 'postopts', 'pubmail',
105 'event-created', 'event-edited', 'event-start', 'event-finish',
106 'event-summary', 'event-desc', 'event-location', 'event-type',
107 'event-nofinish', 'event-adjust', 'event-ignore', 'event-id'];
109 // All fields in the item table
110 const ITEM_FIELDLIST = ['id', 'uid', 'parent', 'uri', 'parent-uri', 'thr-parent',
111 'guid', 'uri-id', 'parent-uri-id', 'thr-parent-id', 'vid',
112 'contact-id', 'wall', 'gravity', 'extid', 'psid',
113 'created', 'edited', 'commented', 'received', 'changed', 'verb',
114 'postopts', 'plink', 'resource-id', 'event-id', 'inform',
115 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid', 'post-type', 'post-reason',
116 'private', 'pubmail', 'visible', 'starred',
117 'unseen', 'deleted', 'origin', 'forum_mode', 'mention', 'global', 'network',
118 'title', 'content-warning', 'body', 'location', 'coord', 'app',
119 'rendered-hash', 'rendered-html', 'object-type', 'object', 'target-type', 'target',
120 'author-id', 'author-link', 'author-name', 'author-avatar', 'author-network',
121 'owner-id', 'owner-link', 'owner-name', 'owner-avatar', 'causer-id'];
123 // List of all verbs that don't need additional content data.
124 // Never reorder or remove entries from this list. Just add new ones at the end, if needed.
126 Activity::LIKE, Activity::DISLIKE,
127 Activity::ATTEND, Activity::ATTENDNO, Activity::ATTENDMAYBE,
136 * Update existing item entries
138 * @param array $fields The fields that are to be changed
139 * @param array $condition The condition for finding the item entries
141 * In the future we may have to change permissions as well.
142 * Then we had to add the user id as third parameter.
144 * A return value of "0" doesn't mean an error - but that 0 rows had been changed.
146 * @return integer|boolean number of affected rows - or "false" if there was an error
147 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
149 public static function update(array $fields, array $condition)
151 if (empty($condition) || empty($fields)) {
155 if (isset($fields['extid'])) {
156 $fields['external-id'] = ItemURI::getIdByURI($fields['extid']);
159 if (!empty($fields['verb'])) {
160 $fields['vid'] = Verb::getID($fields['verb']);
163 $rows = Post::update($fields, $condition);
164 if (is_bool($rows)) {
168 // We only need to call the line by line update for specific fields
169 if (empty($fields['body']) && empty($fields['file']) &&
170 empty($fields['attach']) && empty($fields['edited'])) {
174 Logger::info('Updating per single row method', ['fields' => $fields, 'condition' => $condition]);
176 $items = Post::select(['id', 'origin', 'uri-id', 'uid'], $condition);
180 while ($item = DBA::fetch($items)) {
181 if (!empty($fields['body'])) {
182 Post\Media::insertFromAttachmentData($item['uri-id'], $fields['body']);
184 $content_fields = ['raw-body' => trim($fields['raw-body'] ?? $fields['body'])];
186 // Remove all media attachments from the body and store them in the post-media table
187 $content_fields['raw-body'] = Post\Media::insertFromBody($item['uri-id'], $content_fields['raw-body']);
188 $content_fields['raw-body'] = self::setHashtags($content_fields['raw-body']);
191 if (!empty($fields['file'])) {
192 Post\Category::storeTextByURIId($item['uri-id'], $item['uid'], $fields['file']);
195 if (!empty($fields['attach'])) {
196 Post\Media::insertFromAttachment($item['uri-id'], $fields['attach']);
199 // We only need to notfiy others when it is an original entry from us.
200 // Only call the notifier when the item has some content relevant change.
201 if ($item['origin'] && in_array('edited', array_keys($fields))) {
202 $notify_items[] = $item['id'];
208 foreach ($notify_items as $notify_item) {
209 $post = Post::selectFirst(['uri-id', 'uid'], ['id' => $notify_item]);
210 Worker::add(PRIORITY_HIGH, "Notifier", Delivery::POST, (int)$post['uri-id'], (int)$post['uid']);
217 * Delete an item and notify others about it - if it was ours
219 * @param array $condition The condition for finding the item entries
220 * @param integer $priority Priority for the notification
221 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
223 public static function markForDeletion($condition, $priority = PRIORITY_HIGH)
225 $items = Post::select(['id'], $condition);
226 while ($item = Post::fetch($items)) {
227 self::markForDeletionById($item['id'], $priority);
233 * Delete an item for an user and notify others about it - if it was ours
235 * @param array $condition The condition for finding the item entries
236 * @param integer $uid User who wants to delete this item
237 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
239 public static function deleteForUser($condition, $uid)
245 $items = Post::select(['id', 'uid', 'uri-id'], $condition);
246 while ($item = Post::fetch($items)) {
247 if (in_array($item['uid'], [$uid, 0])) {
248 Post\User::update($item['uri-id'], $uid, ['hidden' => true], true);
249 Post\ThreadUser::update($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::notice('Wrong ownership. Not deleting item', ['id' => $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 $item_fields = ['deleted' => true, 'edited' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()];
322 Post::update($item_fields, ['id' => $item['id']]);
324 Post\Category::storeTextByURIId($item['uri-id'], $item['uid'], '');
326 if (!Post::exists(["`uri-id` = ? AND `uid` != 0 AND NOT `deleted`", $item['uri-id']])) {
327 self::markForDeletion(['uri-id' => $item['uri-id'], 'uid' => 0, 'deleted' => false], $priority);
330 Post\DeliveryData::delete($item['uri-id']);
332 // If it's the parent of a comment thread, kill all the kids
333 if ($item['gravity'] == GRAVITY_PARENT) {
334 self::markForDeletion(['parent' => $item['parent'], 'deleted' => false], $priority);
337 // Is it our comment and/or our thread?
338 if (($item['origin'] || $parent['origin']) && ($item['uid'] != 0)) {
339 // When we delete the original post we will delete all existing copies on the server as well
340 self::markForDeletion(['uri-id' => $item['uri-id'], 'deleted' => false], $priority);
342 // send the notification upstream/downstream
344 Worker::add(['priority' => $priority, 'dont_fork' => true], "Notifier", Delivery::DELETION, (int)$item['uri-id'], (int)$item['uid']);
346 } elseif ($item['uid'] != 0) {
347 Post\User::update($item['uri-id'], $item['uid'], ['hidden' => true]);
348 Post\ThreadUser::update($item['uri-id'], $item['uid'], ['hidden' => true]);
351 Logger::info('Item has been marked for deletion.', ['id' => $item_id]);
356 private static function guid($item, $notify)
358 if (!empty($item['guid'])) {
359 return Strings::escapeTags(trim($item['guid']));
363 // We have to avoid duplicates. So we create the GUID in form of a hash of the plink or uri.
364 // We add the hash of our own host because our host is the original creator of the post.
365 $prefix_host = DI::baseUrl()->getHostname();
369 // We are only storing the post so we create a GUID from the original hostname.
370 if (!empty($item['author-link'])) {
371 $parsed = parse_url($item['author-link']);
372 if (!empty($parsed['host'])) {
373 $prefix_host = $parsed['host'];
377 if (empty($prefix_host) && !empty($item['plink'])) {
378 $parsed = parse_url($item['plink']);
379 if (!empty($parsed['host'])) {
380 $prefix_host = $parsed['host'];
384 if (empty($prefix_host) && !empty($item['uri'])) {
385 $parsed = parse_url($item['uri']);
386 if (!empty($parsed['host'])) {
387 $prefix_host = $parsed['host'];
391 // Is it in the format data@host.tld? - Used for mail contacts
392 if (empty($prefix_host) && !empty($item['author-link']) && strstr($item['author-link'], '@')) {
393 $mailparts = explode('@', $item['author-link']);
394 $prefix_host = array_pop($mailparts);
398 if (!empty($item['plink'])) {
399 $guid = self::guidFromUri($item['plink'], $prefix_host);
400 } elseif (!empty($item['uri'])) {
401 $guid = self::guidFromUri($item['uri'], $prefix_host);
403 $guid = System::createUUID(hash('crc32', $prefix_host));
409 private static function contactId($item)
411 if (!empty($item['contact-id']) && DBA::exists('contact', ['self' => true, 'id' => $item['contact-id']])) {
412 return $item['contact-id'];
413 } elseif (($item['gravity'] == GRAVITY_PARENT) && !empty($item['uid']) && !empty($item['contact-id']) && Contact::isSharing($item['contact-id'], $item['uid'])) {
414 return $item['contact-id'];
415 } elseif (!empty($item['uid']) && !Contact::isSharing($item['author-id'], $item['uid'])) {
416 return $item['author-id'];
417 } elseif (!empty($item['contact-id'])) {
418 return $item['contact-id'];
420 $contact_id = Contact::getIdForURL($item['author-link'], $item['uid']);
421 if (!empty($contact_id)) {
425 return $item['author-id'];
429 * Write an item array into a spool file to be inserted later.
430 * This command is called whenever there are issues storing an item.
432 * @param array $item The item fields that are to be inserted
435 private static function spool($orig_item)
437 // Now we store the data in the spool directory
438 // We use "microtime" to keep the arrival order and "mt_rand" to avoid duplicates
439 $file = 'item-' . round(microtime(true) * 10000) . '-' . mt_rand() . '.msg';
441 $spoolpath = get_spoolpath();
442 if ($spoolpath != "") {
443 $spool = $spoolpath . '/' . $file;
445 file_put_contents($spool, json_encode($orig_item));
446 Logger::warning("Item wasn't stored - Item was spooled into file", ['file' => $file]);
451 * Check if the item array is a duplicate
454 * @return boolean is it a duplicate?
456 private static function isDuplicate(array $item)
458 // Checking if there is already an item with the same guid
459 $condition = ['guid' => $item['guid'], 'network' => $item['network'], 'uid' => $item['uid']];
460 if (Post::exists($condition)) {
461 Logger::notice('Found already existing item', [
462 'guid' => $item['guid'],
463 'uid' => $item['uid'],
464 'network' => $item['network']
469 $condition = ['uri-id' => $item['uri-id'], 'uid' => $item['uid'],
470 'network' => [$item['network'], Protocol::DFRN]];
471 if (Post::exists($condition)) {
472 Logger::notice('duplicated item with the same uri found.', $item);
476 // On Friendica and Diaspora the GUID is unique
477 if (in_array($item['network'], [Protocol::DFRN, Protocol::DIASPORA])) {
478 $condition = ['guid' => $item['guid'], 'uid' => $item['uid']];
479 if (Post::exists($condition)) {
480 Logger::notice('duplicated item with the same guid found.', $item);
483 } elseif ($item['network'] == Protocol::OSTATUS) {
484 // Check for an existing post with the same content. There seems to be a problem with OStatus.
485 $condition = ["`body` = ? AND `network` = ? AND `created` = ? AND `contact-id` = ? AND `uid` = ?",
486 $item['body'], $item['network'], $item['created'], $item['contact-id'], $item['uid']];
487 if (Post::exists($condition)) {
488 Logger::notice('duplicated item with the same body found.', $item);
494 * Check for already added items.
495 * There is a timing issue here that sometimes creates double postings.
496 * An unique index would help - but the limitations of MySQL (maximum size of index values) prevent this.
498 if (($item['uid'] == 0) && Post::exists(['uri-id' => $item['uri-id'], 'uid' => 0])) {
499 Logger::notice('Global item already stored.', ['uri-id' => $item['uri-id'], 'network' => $item['network']]);
507 * Check if the item array is valid
510 * @return boolean item is valid
512 public static function isValid(array $item)
514 // When there is no content then we don't post it
515 if (($item['body'] . $item['title'] == '') && !Post\Media::existsByURIId($item['uri-id'])) {
516 Logger::notice('No body, no title.');
520 if (!empty($item['uid'])) {
521 $owner = User::getOwnerDataById($item['uid'], false);
523 Logger::notice('Missing item user owner data', ['uid' => $item['uid']]);
527 if ($owner['account_expired'] || $owner['account_removed']) {
528 Logger::notice('Item user has been deleted/expired/removed', ['uid' => $item['uid'], 'deleted' => $owner['deleted'], 'account_expired' => $owner['account_expired'], 'account_removed' => $owner['account_removed']]);
533 if (!empty($item['author-id']) && Contact::isBlocked($item['author-id'])) {
534 Logger::notice('Author is blocked node-wide', ['author-link' => $item['author-link'], 'item-uri' => $item['uri']]);
538 if (!empty($item['author-link']) && Network::isUrlBlocked($item['author-link'])) {
539 Logger::notice('Author server is blocked', ['author-link' => $item['author-link'], 'item-uri' => $item['uri']]);
543 if (!empty($item['owner-id']) && Contact::isBlocked($item['owner-id'])) {
544 Logger::notice('Owner is blocked node-wide', ['owner-link' => $item['owner-link'], 'item-uri' => $item['uri']]);
548 if (!empty($item['owner-link']) && Network::isUrlBlocked($item['owner-link'])) {
549 Logger::notice('Owner server is blocked', ['owner-link' => $item['owner-link'], 'item-uri' => $item['uri']]);
553 if (!empty($item['uid']) && !self::isAllowedByUser($item, $item['uid'])) {
557 if ($item['verb'] == Activity::FOLLOW) {
558 if (!$item['origin'] && ($item['author-id'] == Contact::getPublicIdByUserId($item['uid']))) {
559 // Our own follow request can be relayed to us. We don't store it to avoid notification chaos.
560 Logger::info("Follow: Don't store not origin follow request", ['parent-uri' => $item['parent-uri']]);
564 $condition = ['verb' => Activity::FOLLOW, 'uid' => $item['uid'],
565 'parent-uri' => $item['parent-uri'], 'author-id' => $item['author-id']];
566 if (Post::exists($condition)) {
567 // It happens that we receive multiple follow requests by the same author - we only store one.
568 Logger::info('Follow: Found existing follow request from author', ['author-id' => $item['author-id'], 'parent-uri' => $item['parent-uri']]);
577 * Check if the item array is too old
580 * @return boolean item is too old
582 public static function isTooOld(array $item)
584 // check for create date and expire time
585 $expire_interval = DI::config()->get('system', 'dbclean-expire-days', 0);
587 $user = DBA::selectFirst('user', ['expire'], ['uid' => $item['uid']]);
588 if (DBA::isResult($user) && ($user['expire'] > 0) && (($user['expire'] < $expire_interval) || ($expire_interval == 0))) {
589 $expire_interval = $user['expire'];
592 if (($expire_interval > 0) && !empty($item['created'])) {
593 $expire_date = time() - ($expire_interval * 86400);
594 $created_date = strtotime($item['created']);
595 if ($created_date < $expire_date) {
596 Logger::notice('Item created before expiration interval.', [
597 'created' => date('c', $created_date),
598 'expired' => date('c', $expire_date),
609 * Return the id of the given item array if it has been stored before
612 * @return integer item id
614 private static function getDuplicateID(array $item)
616 if (empty($item['network']) || in_array($item['network'], Protocol::FEDERATED)) {
617 $condition = ["`uri-id` = ? AND `uid` = ? AND `network` IN (?, ?, ?, ?)",
618 $item['uri-id'], $item['uid'],
619 Protocol::ACTIVITYPUB, Protocol::DIASPORA, Protocol::DFRN, Protocol::OSTATUS];
620 $existing = Post::selectFirst(['id', 'network'], $condition);
621 if (DBA::isResult($existing)) {
622 // We only log the entries with a different user id than 0. Otherwise we would have too many false positives
623 if ($item['uid'] != 0) {
624 Logger::notice('Item already existed for user', [
625 'uri-id' => $item['uri-id'],
626 'uid' => $item['uid'],
627 'network' => $item['network'],
628 'existing_id' => $existing["id"],
629 'existing_network' => $existing["network"]
633 return $existing["id"];
640 * Fetch top-level parent data for the given item array
643 * @return array item array with parent data
646 private static function getTopLevelParent(array $item)
648 $fields = ['uid', 'uri', 'parent-uri', 'id', 'deleted',
649 'uri-id', 'parent-uri-id',
650 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
651 'wall', 'private', 'forum_mode', 'origin', 'author-id'];
652 $condition = ['uri-id' => $item['thr-parent-id'], 'uid' => $item['uid']];
653 $params = ['order' => ['id' => false]];
654 $parent = Post::selectFirst($fields, $condition, $params);
656 if (!DBA::isResult($parent)) {
657 Logger::notice('item parent was not found - ignoring item', ['thr-parent-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
661 if ($parent['uri-id'] == $parent['parent-uri-id']) {
665 $condition = ['uri-id' => $parent['parent-uri-id'],
666 'parent-uri-id' => $parent['parent-uri-id'],
667 'uid' => $parent['uid']];
668 $params = ['order' => ['id' => false]];
669 $toplevel_parent = Post::selectFirst($fields, $condition, $params);
670 if (!DBA::isResult($toplevel_parent)) {
671 Logger::notice('item top level parent was not found - ignoring item', ['parent-uri-id' => $parent['parent-uri-id'], 'uid' => $parent['uid']]);
675 return $toplevel_parent;
679 * Get the gravity for the given item array
682 * @return integer gravity
684 private static function getGravity(array $item)
686 $activity = DI::activity();
688 if (isset($item['gravity'])) {
689 return intval($item['gravity']);
690 } elseif ($item['parent-uri-id'] === $item['uri-id']) {
691 return GRAVITY_PARENT;
692 } elseif ($activity->match($item['verb'], Activity::POST)) {
693 return GRAVITY_COMMENT;
694 } elseif ($activity->match($item['verb'], Activity::FOLLOW)) {
695 return GRAVITY_ACTIVITY;
696 } elseif ($activity->match($item['verb'], Activity::ANNOUNCE)) {
697 return GRAVITY_ACTIVITY;
699 Logger::info('Unknown gravity for verb', ['verb' => $item['verb']]);
700 return GRAVITY_UNKNOWN; // Should not happen
703 public static function insert($item, $notify = false, $dontcache = false)
707 $priority = PRIORITY_HIGH;
709 // If it is a posting where users should get notifications, then define it as wall posting
713 $item['network'] = Protocol::DFRN;
714 $item['protocol'] = Conversation::PARCEL_DIRECT;
715 $item['direction'] = Conversation::PUSH;
717 if (in_array($notify, PRIORITIES)) {
721 $item['network'] = trim(($item['network'] ?? '') ?: Protocol::PHANTOM);
724 $uid = intval($item['uid']);
726 $item['guid'] = self::guid($item, $notify);
727 $item['uri'] = substr(trim($item['uri'] ?? '') ?: self::newURI($item['uid'], $item['guid']), 0, 255);
730 $item['uri-id'] = ItemURI::insert(['uri' => $item['uri'], 'guid' => $item['guid']]);
732 // Backward compatibility: parent-uri used to be the direct parent uri.
733 // If it is provided without a thr-parent, it probably is the old behavior.
734 $item['thr-parent'] = trim($item['thr-parent'] ?? $item['parent-uri'] ?? $item['uri']);
735 $item['parent-uri'] = $item['thr-parent'];
737 $item['thr-parent-id'] = $item['parent-uri-id'] = ItemURI::getIdByURI($item['thr-parent']);
739 // Store conversation data
740 $item = Conversation::insert($item);
743 * Do we already have this item?
744 * We have to check several networks since Friendica posts could be repeated
745 * via OStatus (maybe Diasporsa as well)
747 $duplicate = self::getDuplicateID($item);
752 // Additional duplicate checks
753 /// @todo Check why the first duplication check returns the item number and the second a 0
754 if (self::isDuplicate($item)) {
758 if (!isset($item['post-type'])) {
759 $item['post-type'] = empty($item['title']) ? self::PT_NOTE : self::PT_ARTICLE;
762 $item['wall'] = intval($item['wall'] ?? 0);
763 $item['extid'] = trim($item['extid'] ?? '');
764 $item['author-name'] = trim($item['author-name'] ?? '');
765 $item['author-link'] = trim($item['author-link'] ?? '');
766 $item['author-avatar'] = trim($item['author-avatar'] ?? '');
767 $item['owner-name'] = trim($item['owner-name'] ?? '');
768 $item['owner-link'] = trim($item['owner-link'] ?? '');
769 $item['owner-avatar'] = trim($item['owner-avatar'] ?? '');
770 $item['received'] = (isset($item['received']) ? DateTimeFormat::utc($item['received']) : DateTimeFormat::utcNow());
771 $item['created'] = (isset($item['created']) ? DateTimeFormat::utc($item['created']) : $item['received']);
772 $item['edited'] = (isset($item['edited']) ? DateTimeFormat::utc($item['edited']) : $item['created']);
773 $item['changed'] = (isset($item['changed']) ? DateTimeFormat::utc($item['changed']) : $item['created']);
774 $item['commented'] = (isset($item['commented']) ? DateTimeFormat::utc($item['commented']) : $item['created']);
775 $item['title'] = substr(trim($item['title'] ?? ''), 0, 255);
776 $item['location'] = trim($item['location'] ?? '');
777 $item['coord'] = trim($item['coord'] ?? '');
778 $item['visible'] = (isset($item['visible']) ? intval($item['visible']) : 1);
779 $item['deleted'] = 0;
780 $item['verb'] = trim($item['verb'] ?? '');
781 $item['object-type'] = trim($item['object-type'] ?? '');
782 $item['object'] = trim($item['object'] ?? '');
783 $item['target-type'] = trim($item['target-type'] ?? '');
784 $item['target'] = trim($item['target'] ?? '');
785 $item['plink'] = substr(trim($item['plink'] ?? ''), 0, 255);
786 $item['allow_cid'] = trim($item['allow_cid'] ?? '');
787 $item['allow_gid'] = trim($item['allow_gid'] ?? '');
788 $item['deny_cid'] = trim($item['deny_cid'] ?? '');
789 $item['deny_gid'] = trim($item['deny_gid'] ?? '');
790 $item['private'] = intval($item['private'] ?? self::PUBLIC);
791 $item['body'] = trim($item['body'] ?? '');
792 $item['raw-body'] = trim($item['raw-body'] ?? $item['body']);
793 $item['app'] = trim($item['app'] ?? '');
794 $item['origin'] = intval($item['origin'] ?? 0);
795 $item['postopts'] = trim($item['postopts'] ?? '');
796 $item['resource-id'] = trim($item['resource-id'] ?? '');
797 $item['event-id'] = intval($item['event-id'] ?? 0);
798 $item['inform'] = trim($item['inform'] ?? '');
799 $item['file'] = trim($item['file'] ?? '');
801 // Items cannot be stored before they happen ...
802 if ($item['created'] > DateTimeFormat::utcNow()) {
803 $item['created'] = DateTimeFormat::utcNow();
806 // We haven't invented time travel by now.
807 if ($item['edited'] > DateTimeFormat::utcNow()) {
808 $item['edited'] = DateTimeFormat::utcNow();
811 $item['plink'] = ($item['plink'] ?? '') ?: DI::baseUrl() . '/display/' . urlencode($item['guid']);
813 $item['gravity'] = self::getGravity($item);
815 $item['language'] = self::getLanguage($item);
817 $default = ['url' => $item['author-link'], 'name' => $item['author-name'],
818 'photo' => $item['author-avatar'], 'network' => $item['network']];
819 $item['author-id'] = ($item['author-id'] ?? 0) ?: Contact::getIdForURL($item['author-link'], 0, null, $default);
821 $default = ['url' => $item['owner-link'], 'name' => $item['owner-name'],
822 'photo' => $item['owner-avatar'], 'network' => $item['network']];
823 $item['owner-id'] = ($item['owner-id'] ?? 0) ?: Contact::getIdForURL($item['owner-link'], 0, null, $default);
825 $actor = ($item['gravity'] == GRAVITY_PARENT) ? $item['owner-id'] : $item['author-id'];
826 if (!$item['origin'] && ($item['uid'] != 0) && Contact::isSharing($actor, $item['uid'])) {
827 $item['post-reason'] = self::PR_FOLLOWER;
830 // Ensure that there is an avatar cache
831 Contact::checkAvatarCache($item['author-id']);
832 Contact::checkAvatarCache($item['owner-id']);
834 // The contact-id should be set before "self::insert" was called - but there seems to be issues sometimes
835 $item["contact-id"] = self::contactId($item);
837 if (!empty($item['direction']) && in_array($item['direction'], [Conversation::PUSH, Conversation::RELAY]) &&
838 self::isTooOld($item)) {
839 Logger::info('Item is too old', ['item' => $item]);
843 if (!self::isValid($item)) {
847 if ($item['gravity'] !== GRAVITY_PARENT) {
848 $toplevel_parent = self::getTopLevelParent($item);
849 if (empty($toplevel_parent)) {
853 // If the thread originated from this node, we check the permission against the thread starter
854 $condition = ['uri-id' => $toplevel_parent['uri-id'], 'wall' => true];
855 $localTopLevelParent = Post::selectFirst(['uid'], $condition);
856 if (!empty($localTopLevelParent['uid']) && !self::isAllowedByUser($item, $localTopLevelParent['uid'])) {
860 $parent_id = $toplevel_parent['id'];
861 $item['parent-uri'] = $toplevel_parent['uri'];
862 $item['parent-uri-id'] = $toplevel_parent['uri-id'];
863 $item['deleted'] = $toplevel_parent['deleted'];
864 $item['allow_cid'] = $toplevel_parent['allow_cid'];
865 $item['allow_gid'] = $toplevel_parent['allow_gid'];
866 $item['deny_cid'] = $toplevel_parent['deny_cid'];
867 $item['deny_gid'] = $toplevel_parent['deny_gid'];
868 $parent_origin = $toplevel_parent['origin'];
870 // Don't federate received participation messages
871 if ($item['verb'] != Activity::FOLLOW) {
872 $item['wall'] = $toplevel_parent['wall'];
874 $item['wall'] = false;
875 // Participations are technical messages, so they are set to "seen" automatically
876 $item['unseen'] = false;
880 * If the parent is private, force privacy for the entire conversation
881 * This differs from the above settings as it subtly allows comments from
882 * email correspondents to be private even if the overall thread is not.
884 if ($toplevel_parent['private']) {
885 $item['private'] = $toplevel_parent['private'];
889 * Edge case. We host a public forum that was originally posted to privately.
890 * The original author commented, but as this is a comment, the permissions
891 * weren't fixed up so it will still show the comment as private unless we fix it here.
893 if ((intval($toplevel_parent['forum_mode']) == 1) && ($toplevel_parent['private'] != self::PUBLIC)) {
894 $item['private'] = self::PUBLIC;
897 // If its a post that originated here then tag the thread as "mention"
898 if ($item['origin'] && $item['uid']) {
899 DBA::update('post-thread-user', ['mention' => true], ['uri-id' => $item['parent-uri-id'], 'uid' => $item['uid']]);
900 Logger::info('tagged thread as mention', ['parent' => $parent_id, 'parent-uri-id' => $item['parent-uri-id'], 'uid' => $item['uid']]);
903 // Update the contact relations
904 Contact\Relation::store($toplevel_parent['author-id'], $item['author-id'], $item['created']);
907 $parent_origin = $item['origin'];
910 $item['parent-uri-id'] = ItemURI::getIdByURI($item['parent-uri']);
911 $item['thr-parent-id'] = ItemURI::getIdByURI($item['thr-parent']);
913 // Is this item available in the global items (with uid=0)?
914 if ($item["uid"] == 0) {
915 $item["global"] = true;
917 // Set the global flag on all items if this was a global item entry
918 Post::update(['global' => true], ['uri-id' => $item['uri-id']]);
920 $item['global'] = Post::exists(['uid' => 0, 'uri-id' => $item['uri-id']]);
924 if (!empty($item["allow_cid"] . $item["allow_gid"] . $item["deny_cid"] . $item["deny_gid"])) {
925 $item["private"] = self::PRIVATE;
929 $item['edit'] = false;
930 $item['parent'] = $parent_id;
931 Hook::callAll('post_local', $item);
933 Hook::callAll('post_remote', $item);
936 if (!empty($item['cancel'])) {
937 Logger::log('post cancelled by addon.');
941 if (empty($item['vid']) && !empty($item['verb'])) {
942 $item['vid'] = Verb::getID($item['verb']);
945 // Creates or assigns the permission set
946 $item['psid'] = PermissionSet::getIdFromACL(
954 if (!empty($item['extid'])) {
955 $item['external-id'] = ItemURI::getIdByURI($item['extid']);
958 if ($item['verb'] == Activity::ANNOUNCE) {
959 self::setOwnerforResharedItem($item);
962 Post\Media::insertFromAttachmentData($item['uri-id'], $item['body']);
964 // Remove all media attachments from the body and store them in the post-media table
965 $item['raw-body'] = Post\Media::insertFromBody($item['uri-id'], $item['raw-body']);
966 $item['raw-body'] = self::setHashtags($item['raw-body']);
968 // Check for hashtags in the body and repair or add hashtag links
969 $item['body'] = self::setHashtags($item['body']);
971 // Fill the cache field
972 self::putInCache($item);
974 if (stristr($item['verb'], Activity::POKE)) {
975 $notify_type = Delivery::POKE;
977 $notify_type = Delivery::POST;
980 // Filling item related side tables
981 if (!empty($item['attach'])) {
982 Post\Media::insertFromAttachment($item['uri-id'], $item['attach']);
985 if (empty($item['event-id'])) {
986 unset($item['event-id']);
989 if (empty($item['causer-id'])) {
990 unset($item['causer-id']);
993 Post::insert($item['uri-id'], $item);
995 if ($item['gravity'] == GRAVITY_PARENT) {
996 Post\Thread::insert($item['uri-id'], $item);
999 if (!in_array($item['verb'], self::ACTIVITIES)) {
1000 Post\Content::insert($item['uri-id'], $item);
1003 // Diaspora signature
1004 if (!empty($item['diaspora_signed_text'])) {
1005 DBA::replace('diaspora-interaction', ['uri-id' => $item['uri-id'], 'interaction' => $item['diaspora_signed_text']]);
1008 // Attached file links
1009 if (!empty($item['file'])) {
1010 Post\Category::storeTextByURIId($item['uri-id'], $item['uid'], $item['file']);
1013 // Delivery relevant data
1014 $delivery_data = Post\DeliveryData::extractFields($item);
1016 if (!empty($item['origin']) || !empty($item['wall']) || !empty($delivery_data['postopts']) || !empty($delivery_data['inform'])) {
1017 Post\DeliveryData::insert($item['uri-id'], $delivery_data);
1020 // Store tags from the body if this hadn't been handled previously in the protocol classes
1021 if (!Tag::existsForPost($item['uri-id'])) {
1022 Tag::storeFromBody($item['uri-id'], $item['body']);
1025 $condition = ['uri-id' => $item['uri-id'], 'uid' => $item['uid']];
1026 if (Post::exists($condition)) {
1027 Logger::notice('Item is already inserted - aborting', $condition);
1031 $post_user_id = Post\User::insert($item['uri-id'], $item['uid'], $item);
1032 if (!$post_user_id) {
1033 Logger::notice('Post-User is already inserted - aborting', ['uid' => $item['uid'], 'uri-id' => $item['uri-id']]);
1037 if ($item['gravity'] == GRAVITY_PARENT) {
1038 $item['post-user-id'] = $post_user_id;
1039 Post\ThreadUser::insert($item['uri-id'], $item['uid'], $item);
1042 Logger::notice('created item', ['post-id' => $post_user_id, 'uid' => $item['uid'], 'network' => $item['network'], 'uri-id' => $item['uri-id'], 'guid' => $item['guid']]);
1044 $posted_item = Post::selectFirst(self::ITEM_FIELDLIST, ['post-user-id' => $post_user_id]);
1045 if (!DBA::isResult($posted_item)) {
1046 // On failure store the data into a spool file so that the "SpoolPost" worker can try again later.
1047 Logger::warning('Could not store item. it will be spooled', ['id' => $post_user_id]);
1048 self::spool($orig_item);
1052 // update the commented timestamp on the parent
1053 if (DI::config()->get('system', 'like_no_comment')) {
1054 // Update when it is a comment
1055 $update_commented = in_array($posted_item['gravity'], [GRAVITY_PARENT, GRAVITY_COMMENT]);
1057 // Update when it isn't a follow or tag verb
1058 $update_commented = !in_array($posted_item['verb'], [Activity::FOLLOW, Activity::TAG]);
1061 if ($update_commented) {
1062 $fields = ['commented' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()];
1064 $fields = ['changed' => DateTimeFormat::utcNow()];
1067 Post::update($fields, ['uri-id' => $posted_item['parent-uri-id'], 'uid' => $posted_item['uid']]);
1069 // In that function we check if this is a forum post. Additionally we delete the item under certain circumstances
1070 if (self::tagDeliver($posted_item['uid'], $post_user_id)) {
1071 // Get the user information for the logging
1072 $user = User::getById($uid);
1074 Logger::notice('Item had been deleted', ['id' => $post_user_id, 'user' => $uid, 'account-type' => $user['account-type']]);
1080 Hook::callAll('post_local_end', $posted_item);
1082 Hook::callAll('post_remote_end', $posted_item);
1086 if ($posted_item['gravity'] === GRAVITY_PARENT) {
1087 self::addShadow($post_user_id);
1089 self::addShadowPost($post_user_id);
1092 self::updateContact($posted_item);
1094 Post\UserNotification::setNotification($posted_item['uri-id'], $posted_item['uid']);
1096 check_user_notification($posted_item['uri-id'], $posted_item['uid']);
1098 // Distribute items to users who subscribed to their tags
1099 self::distributeByTags($posted_item);
1101 // Automatically reshare the item if the "remote_self" option is selected
1102 self::autoReshare($posted_item);
1104 $transmit = $notify || ($posted_item['visible'] && ($parent_origin || $posted_item['origin']));
1107 // Don't relay participation messages
1108 if (($posted_item['verb'] == Activity::FOLLOW) &&
1109 (!$posted_item['origin'] || ($posted_item['author-id'] != Contact::getPublicIdByUserId($uid)))) {
1110 Logger::info('Participation messages will not be relayed', ['item' => $posted_item['id'], 'uri' => $posted_item['uri'], 'verb' => $posted_item['verb']]);
1116 Worker::add(['priority' => $priority, 'dont_fork' => true], 'Notifier', $notify_type, (int)$posted_item['uri-id'], (int)$posted_item['uid']);
1119 return $post_user_id;
1123 * Change the owner of a parent item if it had been shared by a forum
1125 * (public) forum posts in the new format consist of the regular post by the author
1126 * followed by an announce message sent from the forum account.
1127 * Changing the owner helps in grouping forum posts.
1129 * @param array $item
1132 private static function setOwnerforResharedItem(array $item)
1134 $parent = Post::selectFirst(['id', 'causer-id', 'owner-id', 'author-id', 'author-link', 'origin', 'post-reason'],
1135 ['uri-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
1136 if (!DBA::isResult($parent)) {
1137 Logger::error('Parent not found', ['uri-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
1141 $author = Contact::selectFirst(['url', 'contact-type', 'network'], ['id' => $item['author-id']]);
1142 if (!DBA::isResult($author)) {
1143 Logger::error('Author not found', ['id' => $item['author-id']]);
1147 $cid = Contact::getIdForURL($author['url'], $item['uid']);
1148 if (empty($cid) || !Contact::isSharing($cid, $item['uid'])) {
1149 Logger::info('The resharer is not a following contact: quit', ['resharer' => $author['url'], 'uid' => $item['uid'], 'cid' => $cid]);
1153 if ($author['contact-type'] != Contact::TYPE_COMMUNITY) {
1154 if ($parent['post-reason'] == self::PR_ANNOUNCEMENT) {
1155 Logger::info('The parent is already marked as announced: quit', ['causer' => $parent['causer-id'], 'owner' => $parent['owner-id'], 'author' => $parent['author-id'], 'uid' => $item['uid']]);
1159 if (Contact::isSharing($parent['owner-id'], $item['uid'])) {
1160 Logger::info('The resharer is no forum: quit', ['resharer' => $item['author-id'], 'owner' => $parent['owner-id'], 'author' => $parent['author-id'], 'uid' => $item['uid']]);
1163 self::update(['post-reason' => self::PR_ANNOUNCEMENT, 'causer-id' => $item['author-id']], ['id' => $parent['id']]);
1164 Logger::info('Set announcement post-reason', ['uri-id' => $item['uri-id'], 'thr-parent-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
1168 self::update(['owner-id' => $item['author-id'], 'contact-id' => $cid], ['id' => $parent['id']]);
1169 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]);
1173 * Distribute the given item to users who subscribed to their tags
1175 * @param array $item Processed item
1177 private static function distributeByTags(array $item)
1179 if (($item['uid'] != 0) || ($item['gravity'] != GRAVITY_PARENT) || !in_array($item['network'], Protocol::FEDERATED)) {
1183 $uids = Tag::getUIDListByURIId($item['uri-id']);
1184 foreach ($uids as $uid) {
1185 if (Contact::isSharing($item['author-id'], $uid)) {
1188 $fields = ['post-reason' => self::PR_TAG];
1191 $stored = self::storeForUserByUriId($item['uri-id'], $uid, $fields);
1192 Logger::info('Stored item for users', ['uri-id' => $item['uri-id'], 'uid' => $uid, 'fields' => $fields, 'stored' => $stored]);
1197 * Distributes public items to the receivers
1199 * @param integer $itemid Item ID that should be added
1200 * @param string $signed_text Original text (for Diaspora signatures), JSON encoded.
1201 * @throws \Exception
1203 public static function distribute($itemid, $signed_text = '')
1205 $condition = ["`id` IN (SELECT `parent` FROM `post-user-view` WHERE `id` = ?)", $itemid];
1206 $parent = Post::selectFirst(['owner-id'], $condition);
1207 if (!DBA::isResult($parent)) {
1208 Logger::warning('Item not found', ['condition' => $condition]);
1212 // Only distribute public items from native networks
1213 $condition = ['id' => $itemid, 'uid' => 0,
1214 'network' => array_merge(Protocol::FEDERATED ,['']),
1215 'visible' => true, 'deleted' => false, 'private' => [self::PUBLIC, self::UNLISTED]];
1216 $item = Post::selectFirst(self::ITEM_FIELDLIST, $condition);
1217 if (!DBA::isResult($item)) {
1218 Logger::warning('Item not found', ['condition' => $condition]);
1222 $origin = $item['origin'];
1226 /// @todo add a field "pcid" in the contact table that referrs to the public contact id.
1227 $owner = DBA::selectFirst('contact', ['url', 'nurl', 'alias'], ['id' => $parent['owner-id']]);
1228 if (!DBA::isResult($owner)) {
1232 $condition = ['nurl' => $owner['nurl'], 'rel' => [Contact::SHARING, Contact::FRIEND]];
1233 $contacts = DBA::select('contact', ['uid'], $condition);
1234 while ($contact = DBA::fetch($contacts)) {
1235 if ($contact['uid'] == 0) {
1239 $users[$contact['uid']] = $contact['uid'];
1241 DBA::close($contacts);
1243 $condition = ['alias' => $owner['url'], 'rel' => [Contact::SHARING, Contact::FRIEND]];
1244 $contacts = DBA::select('contact', ['uid'], $condition);
1245 while ($contact = DBA::fetch($contacts)) {
1246 if ($contact['uid'] == 0) {
1250 $users[$contact['uid']] = $contact['uid'];
1252 DBA::close($contacts);
1254 if (!empty($owner['alias'])) {
1255 $condition = ['nurl' => Strings::normaliseLink($owner['alias']), '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);
1269 if ($item['uri-id'] != $item['parent-uri-id']) {
1270 $parents = Post::select(['uid', 'origin'], ["`uri-id` = ? AND `uid` != 0", $item['parent-uri-id']]);
1271 while ($parent = Post::fetch($parents)) {
1272 $users[$parent['uid']] = $parent['uid'];
1273 if ($parent['origin'] && !$origin) {
1274 $origin_uid = $parent['uid'];
1277 DBA::close($parents);
1280 foreach ($users as $uid) {
1281 if ($origin_uid == $uid) {
1282 $item['diaspora_signed_text'] = $signed_text;
1284 self::storeForUser($item, $uid);
1289 * Store a public item defined by their URI-ID for the given users
1291 * @param integer $uri_id URI-ID of the given item
1292 * @param integer $uid The user that will receive the item entry
1293 * @param array $fields Additional fields to be stored
1294 * @return integer stored item id
1296 public static function storeForUserByUriId(int $uri_id, int $uid, array $fields = [])
1298 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['uri-id' => $uri_id, 'uid' => 0]);
1299 if (!DBA::isResult($item)) {
1303 if (($item['private'] == self::PRIVATE) || !in_array($item['network'], Protocol::FEDERATED)) {
1304 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']]);
1308 $item['post-reason'] = self::PR_STORED;
1310 $item = array_merge($item, $fields);
1312 $stored = self::storeForUser($item, $uid);
1313 Logger::info('Public item stored for user', ['uri-id' => $item['uri-id'], 'uid' => $uid, 'stored' => $stored]);
1318 * Store a public item array for the given users
1320 * @param array $item The item entry that will be stored
1321 * @param integer $uid The user that will receive the item entry
1322 * @return integer stored item id
1323 * @throws \Exception
1325 private static function storeForUser(array $item, int $uid)
1327 if (Post::exists(['uri-id' => $item['uri-id'], 'uid' => $uid])) {
1328 Logger::info('Item already exists', ['uri-id' => $item['uri-id'], 'uid' => $uid]);
1333 unset($item['parent']);
1334 unset($item['mention']);
1335 unset($item['starred']);
1336 unset($item['unseen']);
1337 unset($item['psid']);
1339 $item['uid'] = $uid;
1340 $item['origin'] = 0;
1343 if ($item['gravity'] == GRAVITY_PARENT) {
1344 $contact = Contact::getByURLForUser($item['owner-link'], $uid, false, ['id']);
1346 $contact = Contact::getByURLForUser($item['author-link'], $uid, false, ['id']);
1349 if (!empty($contact['id'])) {
1350 $item['contact-id'] = $contact['id'];
1352 // Shouldn't happen at all
1353 Logger::warning('contact-id could not be fetched', ['uid' => $uid, 'item' => $item]);
1354 $self = DBA::selectFirst('contact', ['id'], ['self' => true, 'uid' => $uid]);
1355 if (!DBA::isResult($self)) {
1356 // Shouldn't happen even less
1357 Logger::warning('self contact could not be fetched', ['uid' => $uid, 'item' => $item]);
1360 $item['contact-id'] = $self['id'];
1363 /// @todo Handling of "event-id"
1366 if ($item['gravity'] == GRAVITY_PARENT) {
1367 $contact = DBA::selectFirst('contact', [], ['id' => $item['contact-id'], 'self' => false]);
1368 if (DBA::isResult($contact)) {
1369 $notify = self::isRemoteSelf($contact, $item);
1373 $distributed = self::insert($item, $notify, true);
1375 if (!$distributed) {
1376 Logger::info("Distributed public item wasn't stored", ['uri-id' => $item['uri-id'], 'user' => $uid]);
1378 Logger::info('Distributed public item was stored', ['uri-id' => $item['uri-id'], 'user' => $uid, 'stored' => $distributed]);
1380 return $distributed;
1384 * Add a shadow entry for a given item id that is a thread starter
1386 * We store every public item entry additionally with the user id "0".
1387 * This is used for the community page and for the search.
1388 * It is planned that in the future we will store public item entries only once.
1390 * @param integer $itemid Item ID that should be added
1391 * @throws \Exception
1393 private static function addShadow($itemid)
1395 $fields = ['uid', 'private', 'visible', 'deleted', 'network', 'uri-id'];
1396 $condition = ['id' => $itemid, 'gravity' => GRAVITY_PARENT];
1397 $item = Post::selectFirst($fields, $condition);
1399 if (!DBA::isResult($item)) {
1403 // is it already a copy?
1404 if (($itemid == 0) || ($item['uid'] == 0)) {
1408 // Is it a visible public post?
1409 if (!$item["visible"] || $item["deleted"] || ($item["private"] == self::PRIVATE)) {
1413 // is it an entry from a connector? Only add an entry for natively connected networks
1414 if (!in_array($item["network"], array_merge(Protocol::FEDERATED ,['']))) {
1418 if (Post::exists(['uri-id' => $item['uri-id'], 'uid' => 0])) {
1422 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $itemid]);
1424 if (DBA::isResult($item)) {
1425 // Preparing public shadow (removing user specific data)
1428 unset($item['parent']);
1429 unset($item['wall']);
1430 unset($item['mention']);
1431 unset($item['origin']);
1432 unset($item['starred']);
1433 unset($item['postopts']);
1434 unset($item['inform']);
1435 unset($item['post-reason']);
1436 if ($item['uri-id'] == $item['parent-uri-id']) {
1437 $item['contact-id'] = $item['owner-id'];
1439 $item['contact-id'] = $item['author-id'];
1442 $public_shadow = self::insert($item, false, true);
1444 Logger::info('Stored public shadow', ['thread' => $itemid, 'id' => $public_shadow]);
1449 * Add a shadow entry for a given item id that is a comment
1451 * This function does the same like the function above - but for comments
1453 * @param integer $itemid Item ID that should be added
1454 * @throws \Exception
1456 private static function addShadowPost($itemid)
1458 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $itemid]);
1459 if (!DBA::isResult($item)) {
1463 // Is it a toplevel post?
1464 if ($item['gravity'] == GRAVITY_PARENT) {
1465 self::addShadow($itemid);
1469 // Is this a shadow entry?
1470 if ($item['uid'] == 0) {
1474 // Is there a shadow parent?
1475 if (!Post::exists(['uri-id' => $item['parent-uri-id'], 'uid' => 0])) {
1479 // Is there already a shadow entry?
1480 if (Post::exists(['uri-id' => $item['uri-id'], 'uid' => 0])) {
1484 // Save "origin" and "parent" state
1485 $origin = $item['origin'];
1486 $parent = $item['parent'];
1488 // Preparing public shadow (removing user specific data)
1491 unset($item['parent']);
1492 unset($item['wall']);
1493 unset($item['mention']);
1494 unset($item['origin']);
1495 unset($item['starred']);
1496 unset($item['postopts']);
1497 unset($item['inform']);
1498 unset($item['post-reason']);
1499 $item['contact-id'] = Contact::getIdForURL($item['author-link']);
1501 $public_shadow = self::insert($item, false, true);
1503 Logger::info('Stored public shadow', ['uri-id' => $item['uri-id'], 'id' => $public_shadow]);
1505 // If this was a comment to a Diaspora post we don't get our comment back.
1506 // This means that we have to distribute the comment by ourselves.
1507 if ($origin && Post::exists(['id' => $parent, 'network' => Protocol::DIASPORA])) {
1508 self::distribute($public_shadow);
1513 * Adds a language specification in a "language" element of given $arr.
1514 * Expects "body" element to exist in $arr.
1516 * @param array $item
1517 * @return string detected language
1518 * @throws \Text_LanguageDetect_Exception
1520 private static function getLanguage(array $item)
1522 if (!empty($item['language'])) {
1523 return $item['language'];
1526 if (!in_array($item['gravity'], [GRAVITY_PARENT, GRAVITY_COMMENT]) || empty($item['body'])) {
1530 // Convert attachments to links
1531 $naked_body = BBCode::removeAttachment($item['body']);
1532 if (empty($naked_body)) {
1536 // Remove links and pictures
1537 $naked_body = BBCode::removeLinks($naked_body);
1539 // Convert the title and the body to plain text
1540 $naked_body = trim($item['title'] . "\n" . BBCode::toPlaintext($naked_body));
1542 // Remove possibly remaining links
1543 $naked_body = preg_replace(Strings::autoLinkRegEx(), '', $naked_body);
1545 if (empty($naked_body)) {
1549 $ld = new Language(DI::l10n()->getAvailableLanguages());
1550 $languages = $ld->detect($naked_body)->limit(0, 3)->close();
1551 if (is_array($languages)) {
1552 return json_encode($languages);
1558 public static function getLanguageMessage(array $item)
1560 $iso639 = new \Matriphe\ISO639\ISO639;
1562 $used_languages = '';
1563 foreach (json_decode($item['language'], true) as $language => $reliability) {
1564 $used_languages .= $iso639->languageByCode1($language) . ' (' . $language . "): " . number_format($reliability, 5) . '\n';
1566 $used_languages = DI::l10n()->t('Detected languages in this post:\n%s', $used_languages);
1567 return $used_languages;
1571 * Creates an unique guid out of a given uri
1573 * @param string $uri uri of an item entry
1574 * @param string $host hostname for the GUID prefix
1575 * @return string unique guid
1577 public static function guidFromUri($uri, $host)
1579 // Our regular guid routine is using this kind of prefix as well
1580 // We have to avoid that different routines could accidentally create the same value
1581 $parsed = parse_url($uri);
1583 // We use a hash of the hostname as prefix for the guid
1584 $guid_prefix = hash("crc32", $host);
1586 // Remove the scheme to make sure that "https" and "http" doesn't make a difference
1587 unset($parsed["scheme"]);
1589 // Glue it together to be able to make a hash from it
1590 $host_id = implode("/", $parsed);
1592 // We could use any hash algorithm since it isn't a security issue
1593 $host_hash = hash("ripemd128", $host_id);
1595 return $guid_prefix.$host_hash;
1599 * generate an unique URI
1601 * @param integer $uid User id
1602 * @param string $guid An existing GUID (Otherwise it will be generated)
1605 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1607 public static function newURI($uid, $guid = "")
1610 $guid = System::createUUID();
1613 return DI::baseUrl()->get() . '/objects/' . $guid;
1617 * Set "success_update" and "last-item" to the date of the last time we heard from this contact
1619 * This can be used to filter for inactive contacts.
1620 * Only do this for public postings to avoid privacy problems, since poco data is public.
1621 * Don't set this value if it isn't from the owner (could be an author that we don't know)
1623 * @param array $arr Contains the just posted item record
1624 * @throws \Exception
1626 private static function updateContact($arr)
1628 // Unarchive the author
1629 $contact = DBA::selectFirst('contact', [], ['id' => $arr["author-id"]]);
1630 if (DBA::isResult($contact)) {
1631 Contact::unmarkForArchival($contact);
1634 // Unarchive the contact if it's not our own contact
1635 $contact = DBA::selectFirst('contact', [], ['id' => $arr["contact-id"], 'self' => false]);
1636 if (DBA::isResult($contact)) {
1637 Contact::unmarkForArchival($contact);
1640 /// @todo On private posts we could obfuscate the date
1641 $update = ($arr['private'] != self::PRIVATE) || in_array($arr['network'], Protocol::FEDERATED);
1643 // Is it a forum? Then we don't care about the rules from above
1644 if (!$update && in_array($arr["network"], [Protocol::ACTIVITYPUB, Protocol::DFRN]) && ($arr["parent-uri-id"] === $arr["uri-id"])) {
1645 if (DBA::exists('contact', ['id' => $arr['contact-id'], 'forum' => true])) {
1651 // The "self" contact id is used (for example in the connectors) when the contact is unknown
1652 // So we have to ensure to only update the last item when it had been our own post,
1653 // or it had been done by a "regular" contact.
1654 if (!empty($arr['wall'])) {
1655 $condition = ['id' => $arr['contact-id']];
1657 $condition = ['id' => $arr['contact-id'], 'self' => false];
1659 DBA::update('contact', ['failed' => false, 'success_update' => $arr['received'], 'last-item' => $arr['received']], $condition);
1661 // Now do the same for the system wide contacts with uid=0
1662 if ($arr['private'] != self::PRIVATE) {
1663 DBA::update('contact', ['failed' => false, 'success_update' => $arr['received'], 'last-item' => $arr['received']],
1664 ['id' => $arr['owner-id']]);
1666 if ($arr['owner-id'] != $arr['author-id']) {
1667 DBA::update('contact', ['failed' => false, 'success_update' => $arr['received'], 'last-item' => $arr['received']],
1668 ['id' => $arr['author-id']]);
1673 public static function setHashtags($body)
1675 $body = BBCode::performWithEscapedTags($body, ['noparse', 'pre', 'code', 'img'], function ($body) {
1676 $tags = BBCode::getTags($body);
1679 if (!count($tags)) {
1683 // This sorting is important when there are hashtags that are part of other hashtags
1684 // Otherwise there could be problems with hashtags like #test and #test2
1685 // Because of this we are sorting from the longest to the shortest tag.
1686 usort($tags, function ($a, $b) {
1687 return strlen($b) <=> strlen($a);
1690 $URLSearchString = "^\[\]";
1692 // All hashtags should point to the home server if "local_tags" is activated
1693 if (DI::config()->get('system', 'local_tags')) {
1694 $body = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1695 "#[url=" . DI::baseUrl() . "/search?tag=$2]$2[/url]", $body);
1698 // mask hashtags inside of url, bookmarks and attachments to avoid urls in urls
1699 $body = preg_replace_callback("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1701 return ("[url=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/url]");
1704 $body = preg_replace_callback("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism",
1706 return ("[bookmark=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/bookmark]");
1709 $body = preg_replace_callback("/\[attachment (.*)\](.*?)\[\/attachment\]/ism",
1711 return ("[attachment " . str_replace("#", "#", $match[1]) . "]" . $match[2] . "[/attachment]");
1714 // Repair recursive urls
1715 $body = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1718 foreach ($tags as $tag) {
1719 if ((strpos($tag, '#') !== 0) || strpos($tag, '[url=') || strlen($tag) < 2 || $tag[1] == '#') {
1723 $basetag = str_replace('_', ' ', substr($tag, 1));
1724 $newtag = '#[url=' . DI::baseUrl() . '/search?tag=' . $basetag . ']' . $basetag . '[/url]';
1726 $body = str_replace($tag, $newtag, $body);
1729 // Convert back the masked hashtags
1730 $body = str_replace("#", "#", $body);
1739 * look for mention tags and setup a second delivery chain for forum/community posts if appropriate
1742 * @param int $item_id
1743 * @return boolean true if item was deleted, else false
1744 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1745 * @throws \ImagickException
1747 private static function tagDeliver($uid, $item_id)
1751 $user = DBA::selectFirst('user', [], ['uid' => $uid]);
1752 if (!DBA::isResult($user)) {
1756 $community_page = (($user['page-flags'] == User::PAGE_FLAGS_COMMUNITY) ? true : false);
1757 $prvgroup = (($user['page-flags'] == User::PAGE_FLAGS_PRVGROUP) ? true : false);
1759 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $item_id]);
1760 if (!DBA::isResult($item)) {
1764 $link = Strings::normaliseLink(DI::baseUrl() . '/profile/' . $user['nickname']);
1767 * Diaspora uses their own hardwired link URL in @-tags
1768 * instead of the one we supply with webfinger
1770 $dlink = Strings::normaliseLink(DI::baseUrl() . '/u/' . $user['nickname']);
1772 $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism', $item['body'], $matches, PREG_SET_ORDER);
1774 foreach ($matches as $mtch) {
1775 if (Strings::compareLink($link, $mtch[1]) || Strings::compareLink($dlink, $mtch[1])) {
1777 Logger::log('mention found: ' . $mtch[2]);
1783 $tags = Tag::getByURIId($item['uri-id'], [Tag::MENTION, Tag::EXCLUSIVE_MENTION]);
1784 foreach ($tags as $tag) {
1785 if (Strings::compareLink($link, $tag['url']) || Strings::compareLink($dlink, $tag['url'])) {
1787 DI::logger()->info('mention found in tag.', ['url' => $tag['url']]);
1793 if (($community_page || $prvgroup) &&
1794 !$item['wall'] && !$item['origin'] && ($item['gravity'] == GRAVITY_PARENT)) {
1795 Logger::info('Delete private group/communiy top-level item without mention', ['id' => $item['id'], 'guid'=> $item['guid']]);
1796 Post\User::delete(['uri-id' => $item['uri-id'], 'uid' => $item['uid']]);
1802 $arr = ['item' => $item, 'user' => $user];
1804 Hook::callAll('tagged', $arr);
1806 if (!$community_page && !$prvgroup) {
1811 * tgroup delivery - setup a second delivery chain
1812 * prevent delivery looping - only proceed
1813 * if the message originated elsewhere and is a top-level post
1815 if ($item['wall'] || $item['origin'] || ($item['id'] != $item['parent'])) {
1819 // now change this copy of the post to a forum head message and deliver to all the tgroup members
1820 $self = DBA::selectFirst('contact', ['id', 'name', 'url', 'thumb'], ['uid' => $uid, 'self' => true]);
1821 if (!DBA::isResult($self)) {
1825 $owner_id = Contact::getIdForURL($self['url']);
1827 // also reset all the privacy bits to the forum default permissions
1829 $private = ($user['allow_cid'] || $user['allow_gid'] || $user['deny_cid'] || $user['deny_gid']) ? self::PRIVATE : self::PUBLIC;
1831 $psid = PermissionSet::getIdFromACL(
1839 $forum_mode = ($prvgroup ? 2 : 1);
1841 $fields = ['wall' => true, 'origin' => true, 'forum_mode' => $forum_mode, 'contact-id' => $self['id'],
1842 'owner-id' => $owner_id, 'private' => $private, 'psid' => $psid];
1843 self::update($fields, ['id' => $item['id']]);
1845 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], 'Notifier', Delivery::POST, (int)$item['uri-id'], (int)$item['uid']);
1847 self::performActivity($item['id'], 'announce', $uid);
1853 * Automatically reshare the item if the "remote_self" option is selected
1855 * @param array $item
1858 private static function autoReshare(array $item)
1860 if ($item['gravity'] != GRAVITY_PARENT) {
1864 if (!DBA::exists('contact', ['id' => $item['contact-id'], 'remote_self' => Contact::MIRROR_NATIVE_RESHARE])) {
1868 if (!in_array($item['network'], [Protocol::ACTIVITYPUB, Protocol::DFRN])) {
1872 Logger::info('Automatically reshare item', ['uid' => $item['uid'], 'id' => $item['id'], 'guid' => $item['guid'], 'uri-id' => $item['uri-id']]);
1874 self::performActivity($item['id'], 'announce', $item['uid']);
1877 public static function isRemoteSelf($contact, &$datarray)
1879 if (!$contact['remote_self']) {
1883 // Prevent the forwarding of posts that are forwarded
1884 if (!empty($datarray["extid"]) && ($datarray["extid"] == Protocol::DFRN)) {
1885 Logger::info('Already forwarded');
1889 // Prevent to forward already forwarded posts
1890 if ($datarray["app"] == DI::baseUrl()->getHostname()) {
1891 Logger::info('Already forwarded (second test)');
1895 // Only forward posts
1896 if ($datarray["verb"] != Activity::POST) {
1897 Logger::info('No post');
1901 if (($contact['network'] != Protocol::FEED) && ($datarray['private'] == self::PRIVATE)) {
1902 Logger::info('Not public');
1906 $datarray2 = $datarray;
1907 Logger::info('remote-self start', ['contact' => $contact['url'], 'remote_self'=> $contact['remote_self'], 'item' => $datarray]);
1908 if ($contact['remote_self'] == Contact::MIRROR_OWN_POST) {
1909 $self = DBA::selectFirst('contact', ['id', 'name', 'url', 'thumb'],
1910 ['uid' => $contact['uid'], 'self' => true]);
1911 if (DBA::isResult($self)) {
1912 $datarray['contact-id'] = $self["id"];
1914 $datarray['owner-name'] = $self["name"];
1915 $datarray['owner-link'] = $self["url"];
1916 $datarray['owner-avatar'] = $self["thumb"];
1918 $datarray['author-name'] = $datarray['owner-name'];
1919 $datarray['author-link'] = $datarray['owner-link'];
1920 $datarray['author-avatar'] = $datarray['owner-avatar'];
1922 unset($datarray['edited']);
1924 unset($datarray['network']);
1925 unset($datarray['owner-id']);
1926 unset($datarray['author-id']);
1929 if ($contact['network'] != Protocol::FEED) {
1930 $old_uri_id = $datarray["uri-id"] ?? 0;
1931 $datarray["guid"] = System::createUUID();
1932 unset($datarray["plink"]);
1933 $datarray["uri"] = self::newURI($contact['uid'], $datarray["guid"]);
1934 $datarray["uri-id"] = ItemURI::getIdByURI($datarray["uri"]);
1935 $datarray["extid"] = Protocol::DFRN;
1936 $urlpart = parse_url($datarray2['author-link']);
1937 $datarray["app"] = $urlpart["host"];
1938 if (!empty($old_uri_id)) {
1939 Post\Media::copy($old_uri_id, $datarray["uri-id"]);
1942 unset($datarray["parent-uri"]);
1943 unset($datarray["thr-parent"]);
1945 $datarray['private'] = self::PUBLIC;
1949 if ($contact['network'] != Protocol::FEED) {
1950 // Store the original post
1951 $result = self::insert($datarray2);
1952 Logger::info('remote-self post original item', ['contact' => $contact['url'], 'result'=> $result, 'item' => $datarray2]);
1954 $datarray["app"] = "Feed";
1958 // Trigger automatic reactions for addons
1959 $datarray['api_source'] = true;
1961 // We have to tell the hooks who we are - this really should be improved
1962 $_SESSION['authenticated'] = true;
1963 $_SESSION['uid'] = $contact['uid'];
1965 return (bool)$result;
1972 * @param array $item
1975 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1976 * @throws \ImagickException
1978 public static function fixPrivatePhotos($s, $uid, $item = null, $cid = 0)
1980 if (DI::config()->get('system', 'disable_embedded')) {
1984 Logger::info('check for photos');
1985 $site = substr(DI::baseUrl(), strpos(DI::baseUrl(), '://'));
1990 $img_start = strpos($orig_body, '[img');
1991 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
1992 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
1994 while (($img_st_close !== false) && ($img_len !== false)) {
1995 $img_st_close++; // make it point to AFTER the closing bracket
1996 $image = substr($orig_body, $img_start + $img_st_close, $img_len);
1998 Logger::info('found photo', ['image' => $image]);
2000 if (stristr($image, $site . '/photo/')) {
2001 // Only embed locally hosted photos
2003 $i = basename($image);
2004 $i = str_replace(['.jpg', '.png', '.gif'], ['', '', ''], $i);
2005 $x = strpos($i, '-');
2008 $res = substr($i, $x + 1);
2009 $i = substr($i, 0, $x);
2010 $photo = Photo::getPhotoForUser($uid, $i, $res);
2011 if (DBA::isResult($photo)) {
2013 * Check to see if we should replace this photo link with an embedded image
2014 * 1. No need to do so if the photo is public
2015 * 2. If there's a contact-id provided, see if they're in the access list
2016 * for the photo. If so, embed it.
2017 * 3. Otherwise, if we have an item, see if the item permissions match the photo
2018 * permissions, regardless of order but first check to see if they're an exact
2019 * match to save some processing overhead.
2021 if (self::hasPermissions($photo)) {
2023 $recips = self::enumeratePermissions($photo);
2024 if (in_array($cid, $recips)) {
2028 if (self::samePermissions($uid, $item, $photo)) {
2034 $photo_img = Photo::getImageForPhoto($photo);
2035 // If a custom width and height were specified, apply before embedding
2036 if (preg_match("/\[img\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
2037 Logger::info('scaling photo');
2039 $width = intval($match[1]);
2040 $height = intval($match[2]);
2042 $photo_img->scaleDown(max($width, $height));
2045 $data = $photo_img->asString();
2046 $type = $photo_img->getType();
2048 Logger::info('replacing photo');
2049 $image = 'data:' . $type . ';base64,' . base64_encode($data);
2050 Logger::debug('replaced', ['image' => $image]);
2056 $new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/img]';
2057 $orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/img]'));
2058 if ($orig_body === false) {
2062 $img_start = strpos($orig_body, '[img');
2063 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
2064 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
2067 $new_body = $new_body . $orig_body;
2072 private static function hasPermissions($obj)
2074 return !empty($obj['allow_cid']) || !empty($obj['allow_gid']) ||
2075 !empty($obj['deny_cid']) || !empty($obj['deny_gid']);
2078 private static function samePermissions($uid, $obj1, $obj2)
2080 // first part is easy. Check that these are exactly the same.
2081 if (($obj1['allow_cid'] == $obj2['allow_cid'])
2082 && ($obj1['allow_gid'] == $obj2['allow_gid'])
2083 && ($obj1['deny_cid'] == $obj2['deny_cid'])
2084 && ($obj1['deny_gid'] == $obj2['deny_gid'])) {
2088 // This is harder. Parse all the permissions and compare the resulting set.
2089 $recipients1 = self::enumeratePermissions($obj1);
2090 $recipients2 = self::enumeratePermissions($obj2);
2094 /// @TODO Comparison of arrays, maybe use array_diff_assoc() here?
2095 return ($recipients1 == $recipients2);
2099 * Returns an array of contact-ids that are allowed to see this object
2101 * @param array $obj Item array with at least uid, allow_cid, allow_gid, deny_cid and deny_gid
2102 * @param bool $check_dead Prunes unavailable contacts from the result
2104 * @throws \Exception
2106 public static function enumeratePermissions(array $obj, bool $check_dead = false)
2108 $aclFormater = DI::aclFormatter();
2110 $allow_people = $aclFormater->expand($obj['allow_cid']);
2111 $allow_groups = Group::expand($obj['uid'], $aclFormater->expand($obj['allow_gid']), $check_dead);
2112 $deny_people = $aclFormater->expand($obj['deny_cid']);
2113 $deny_groups = Group::expand($obj['uid'], $aclFormater->expand($obj['deny_gid']), $check_dead);
2114 $recipients = array_unique(array_merge($allow_people, $allow_groups));
2115 $deny = array_unique(array_merge($deny_people, $deny_groups));
2116 $recipients = array_diff($recipients, $deny);
2120 public static function expire(int $uid, int $days, string $network = "", bool $force = false)
2122 if (!$uid || ($days < 1)) {
2126 $condition = ["`uid` = ? AND NOT `deleted` AND `gravity` = ?",
2127 $uid, GRAVITY_PARENT];
2130 * $expire_network_only = save your own wall posts
2131 * and just expire conversations started by others
2133 $expire_network_only = DI::pConfig()->get($uid, 'expire', 'network_only', false);
2135 if ($expire_network_only) {
2136 $condition[0] .= " AND NOT `wall`";
2139 if ($network != "") {
2140 $condition[0] .= " AND `network` = ?";
2141 $condition[] = $network;
2144 $condition[0] .= " AND `received` < UTC_TIMESTAMP() - INTERVAL ? DAY";
2145 $condition[] = $days;
2147 $items = Post::select(['resource-id', 'starred', 'id', 'post-type', 'uid', 'uri-id'], $condition);
2149 if (!DBA::isResult($items)) {
2153 $expire_items = DI::pConfig()->get($uid, 'expire', 'items', true);
2155 // Forcing expiring of items - but not notes and marked items
2157 $expire_items = true;
2160 $expire_notes = DI::pConfig()->get($uid, 'expire', 'notes', true);
2161 $expire_starred = DI::pConfig()->get($uid, 'expire', 'starred', true);
2162 $expire_photos = DI::pConfig()->get($uid, 'expire', 'photos', false);
2166 $priority = DI::config()->get('system', 'expire-notify-priority');
2168 while ($item = Post::fetch($items)) {
2169 // don't expire filed items
2170 if (DBA::exists('post-category', ['uri-id' => $item['uri-id'], 'uid' => $item['uid'], 'type' => Post\Category::FILE])) {
2174 // Only expire posts, not photos and photo comments
2176 if (!$expire_photos && !empty($item['resource-id'])) {
2178 } elseif (!$expire_starred && intval($item['starred'])) {
2180 } elseif (!$expire_notes && ($item['post-type'] == self::PT_PERSONAL_NOTE)) {
2182 } elseif (!$expire_items && ($item['post-type'] != self::PT_PERSONAL_NOTE)) {
2186 self::markForDeletionById($item['id'], $priority);
2191 Logger::log('User ' . $uid . ": expired $expired items; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
2194 public static function firstPostDate($uid, $wall = false)
2196 $user = User::getById($uid, ['register_date']);
2201 $condition = ["`uid` = ? AND `wall` = ? AND NOT `deleted` AND `visible` AND `received` >= ?",
2202 $uid, $wall, $user['register_date']];
2203 $params = ['order' => ['received' => false]];
2204 $thread = Post::selectFirstThread(['received'], $condition, $params);
2205 if (DBA::isResult($thread)) {
2206 $postdate = substr(DateTimeFormat::local($thread['received']), 0, 10);
2213 * add/remove activity to an item
2215 * Toggle activities as like,dislike,attend of an item
2217 * @param int $item_id
2218 * @param string $verb
2219 * Activity verb. One of
2220 * like, unlike, dislike, undislike, attendyes, unattendyes,
2221 * attendno, unattendno, attendmaybe, unattendmaybe,
2222 * announce, unannouce
2224 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2225 * @throws \ImagickException
2226 * @hook 'post_local_end'
2228 * 'post_id' => ID of posted item
2230 public static function performActivity(int $item_id, string $verb, int $uid)
2236 Logger::notice('Start create activity', ['verb' => $verb, 'item' => $item_id, 'user' => $uid]);
2238 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $item_id]);
2239 if (!DBA::isResult($item)) {
2240 Logger::log('like: unknown item ' . $item_id);
2244 $uri_id = $item['uri-id'];
2246 if (!in_array($item['uid'], [0, $uid])) {
2250 if (!Post::exists(['uri-id' => $item['parent-uri-id'], 'uid' => $uid])) {
2251 $stored = self::storeForUserByUriId($item['parent-uri-id'], $uid);
2252 if (($item['parent-uri-id'] == $item['uri-id']) && !empty($stored)) {
2253 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $stored]);
2254 if (!DBA::isResult($item)) {
2255 Logger::info('Could not fetch just created item - should not happen', ['stored' => $stored, 'uid' => $uid, 'uri-id' => $uri_id]);
2261 // Retrieves the local post owner
2262 $owner = User::getOwnerDataById($uid);
2263 if (empty($owner)) {
2264 Logger::info('Empty owner for user', ['uid' => $uid]);
2268 // Retrieve the current logged in user's public contact
2269 $author_id = Contact::getIdForURL($owner['url']);
2270 if (empty($author_id)) {
2271 Logger::info('Empty public contact');
2279 $activity = Activity::LIKE;
2283 $activity = Activity::DISLIKE;
2287 $activity = Activity::ATTEND;
2291 $activity = Activity::ATTENDNO;
2294 case 'unattendmaybe':
2295 $activity = Activity::ATTENDMAYBE;
2299 $activity = Activity::FOLLOW;
2303 $activity = Activity::ANNOUNCE;
2306 Logger::notice('unknown verb', ['verb' => $verb, 'item' => $item_id]);
2310 $mode = Strings::startsWith($verb, 'un') ? 'delete' : 'create';
2312 // Enable activity toggling instead of on/off
2313 $event_verb_flag = $activity === Activity::ATTEND || $activity === Activity::ATTENDNO || $activity === Activity::ATTENDMAYBE;
2315 // Look for an existing verb row
2316 // Event participation activities are mutually exclusive, only one of them can exist at all times.
2317 if ($event_verb_flag) {
2318 $verbs = [Activity::ATTEND, Activity::ATTENDNO, Activity::ATTENDMAYBE];
2320 // Translate to the index based activity index
2322 foreach ($verbs as $verb) {
2323 $vids[] = Verb::getID($verb);
2326 $vids = Verb::getID($activity);
2329 $condition = ['vid' => $vids, 'deleted' => false, 'gravity' => GRAVITY_ACTIVITY,
2330 'author-id' => $author_id, 'uid' => $item['uid'], 'thr-parent-id' => $uri_id];
2331 $like_item = Post::selectFirst(['id', 'guid', 'verb'], $condition);
2333 if (DBA::isResult($like_item)) {
2335 * Truth table for existing activities
2337 * | Inputs || Outputs |
2338 * |----------------------------||-------------------|
2339 * | Mode | Event | Same verb || Delete? | Return? |
2340 * |--------|-------|-----------||---------|---------|
2341 * | create | Yes | Yes || No | Yes |
2342 * | create | Yes | No || Yes | No |
2343 * | create | No | Yes || No | Yes |
2344 * | create | No | No || N/A†|
2345 * | delete | Yes | Yes || Yes | N/A‡ |
2346 * | delete | Yes | No || No | N/A‡ |
2347 * | delete | No | Yes || Yes | N/A‡ |
2348 * | delete | No | No || N/A†|
2349 * |--------|-------|-----------||---------|---------|
2350 * | A | B | C || A xor C | !B or C |
2352 * †Can't happen: It's impossible to find an existing non-event activity without
2353 * the same verb because we are only looking for this single verb.
2355 * ‡ The "mode = delete" is returning early whether an existing activity was found or not.
2357 if ($mode == 'create' xor $like_item['verb'] == $activity) {
2358 self::markForDeletionById($like_item['id']);
2361 if (!$event_verb_flag || $like_item['verb'] == $activity) {
2366 // No need to go further if we aren't creating anything
2367 if ($mode == 'delete') {
2371 $objtype = $item['resource-id'] ? Activity\ObjectType::IMAGE : Activity\ObjectType::NOTE;
2374 'guid' => System::createUUID(),
2375 'uri' => self::newURI($item['uid']),
2376 'uid' => $item['uid'],
2377 'contact-id' => $owner['id'],
2378 'wall' => $item['wall'],
2380 'network' => Protocol::DFRN,
2381 'protocol' => Conversation::PARCEL_DIRECT,
2382 'direction' => Conversation::PUSH,
2383 'gravity' => GRAVITY_ACTIVITY,
2384 'parent' => $item['id'],
2385 'thr-parent' => $item['uri'],
2386 'owner-id' => $author_id,
2387 'author-id' => $author_id,
2388 'body' => $activity,
2389 'verb' => $activity,
2390 'object-type' => $objtype,
2391 'allow_cid' => $item['allow_cid'],
2392 'allow_gid' => $item['allow_gid'],
2393 'deny_cid' => $item['deny_cid'],
2394 'deny_gid' => $item['deny_gid'],
2399 $signed = Diaspora::createLikeSignature($uid, $new_item);
2400 if (!empty($signed)) {
2401 $new_item['diaspora_signed_text'] = json_encode($signed);
2404 $new_item_id = self::insert($new_item);
2406 // If the parent item isn't visible then set it to visible
2407 if (!$item['visible']) {
2408 self::update(['visible' => true], ['id' => $item['id']]);
2411 $new_item['id'] = $new_item_id;
2413 Hook::callAll('post_local_end', $new_item);
2419 * Fetch the SQL condition for the given user id
2421 * @param integer $owner_id User ID for which the permissions should be fetched
2422 * @return array condition
2424 public static function getPermissionsConditionArrayByUserId(int $owner_id)
2426 $local_user = local_user();
2427 $remote_user = Session::getRemoteContactID($owner_id);
2429 // default permissions - anonymous user
2430 $condition = ["`private` != ?", self::PRIVATE];
2432 if ($local_user && ($local_user == $owner_id)) {
2433 // Profile owner - everything is visible
2435 } elseif ($remote_user) {
2436 // Authenticated visitor - fetch the matching permissionsets
2437 $set = PermissionSet::get($owner_id, $remote_user);
2439 $condition = ["(`private` != ? OR (`private` = ? AND `wall`
2440 AND `psid` IN (" . implode(', ', array_fill(0, count($set), '?')) . ")))",
2441 self::PRIVATE, self::PRIVATE];
2442 $condition = array_merge($condition, $set);
2450 * Get a permission SQL string for the given user
2452 * @param int $owner_id
2453 * @param string $table
2456 public static function getPermissionsSQLByUserId(int $owner_id, string $table = '')
2458 $local_user = local_user();
2459 $remote_user = Session::getRemoteContactID($owner_id);
2461 if (!empty($table)) {
2462 $table = DBA::quoteIdentifier($table) . '.';
2466 * Construct permissions
2468 * default permissions - anonymous user
2470 $sql = sprintf(" AND " . $table . "`private` != %d", self::PRIVATE);
2472 // Profile owner - everything is visible
2473 if ($local_user && ($local_user == $owner_id)) {
2475 } elseif ($remote_user) {
2477 * Authenticated visitor. Unless pre-verified,
2478 * check that the contact belongs to this $owner_id
2479 * and load the groups the visitor belongs to.
2480 * If pre-verified, the caller is expected to have already
2481 * done this and passed the groups into this function.
2483 $set = PermissionSet::get($owner_id, $remote_user);
2486 $sql_set = sprintf(" OR (" . $table . "`private` = %d AND " . $table . "`wall` AND " . $table . "`psid` IN (", self::PRIVATE) . implode(',', $set) . "))";
2491 $sql = sprintf(" AND (" . $table . "`private` != %d", self::PRIVATE) . $sql_set . ")";
2498 * get translated item type
2500 * @param array $item
2501 * @param \Friendica\Core\L10n $l10n
2504 public static function postType(array $item, \Friendica\Core\L10n $l10n)
2506 if (!empty($item['event-id'])) {
2507 return $l10n->t('event');
2508 } elseif (!empty($item['resource-id'])) {
2509 return $l10n->t('photo');
2510 } elseif ($item['gravity'] == GRAVITY_ACTIVITY) {
2511 return $l10n->t('activity');
2512 } elseif ($item['gravity'] == GRAVITY_COMMENT) {
2513 return $l10n->t('comment');
2516 return $l10n->t('post');
2520 * Sets the "rendered-html" field of the provided item
2522 * Body is preserved to avoid side-effects as we modify it just-in-time for spoilers and private image links
2524 * @param array $item
2526 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2527 * @todo Remove reference, simply return "rendered-html" and "rendered-hash"
2529 public static function putInCache(&$item)
2531 // Save original body to prevent addons to modify it
2532 $body = $item['body'];
2534 $rendered_hash = $item['rendered-hash'] ?? '';
2535 $rendered_html = $item['rendered-html'] ?? '';
2537 if ($rendered_hash == ''
2538 || $rendered_html == ''
2539 || $rendered_hash != hash('md5', BBCode::VERSION . '::' . $body)
2540 || DI::config()->get('system', 'ignore_cache')
2542 self::addRedirToImageTags($item);
2544 $item['rendered-html'] = BBCode::convert($item['body']);
2545 $item['rendered-hash'] = hash('md5', BBCode::VERSION . '::' . $body);
2547 $hook_data = ['item' => $item, 'rendered-html' => $item['rendered-html'], 'rendered-hash' => $item['rendered-hash']];
2548 Hook::callAll('put_item_in_cache', $hook_data);
2549 $item['rendered-html'] = $hook_data['rendered-html'];
2550 $item['rendered-hash'] = $hook_data['rendered-hash'];
2553 // Update if the generated values differ from the existing ones
2554 if ((($rendered_hash != $item['rendered-hash']) || ($rendered_html != $item['rendered-html'])) && !empty($item['id'])) {
2557 'rendered-html' => $item['rendered-html'],
2558 'rendered-hash' => $item['rendered-hash']
2560 ['id' => $item['id']]
2565 $item['body'] = $body;
2569 * Find any non-embedded images in private items and add redir links to them
2571 * @param array &$item The field array of an item row
2573 private static function addRedirToImageTags(array &$item)
2578 $cnt = preg_match_all('|\[img\](http[^\[]*?/photo/[a-fA-F0-9]+?(-[0-9]\.[\w]+?)?)\[\/img\]|', $item['body'], $matches, PREG_SET_ORDER);
2580 foreach ($matches as $mtch) {
2581 if (strpos($mtch[1], '/redir') !== false) {
2585 if ((local_user() == $item['uid']) && ($item['private'] == self::PRIVATE) && ($item['contact-id'] != $app->contact['id']) && ($item['network'] == Protocol::DFRN)) {
2586 $img_url = 'redir/' . $item['contact-id'] . '?url=' . urlencode($mtch[1]);
2587 $item['body'] = str_replace($mtch[0], '[img]' . $img_url . '[/img]', $item['body']);
2594 * Given an item array, convert the body element from bbcode to html and add smilie icons.
2595 * If attach is true, also add icons for item attachments.
2597 * @param array $item
2598 * @param boolean $attach
2599 * @param boolean $is_preview
2600 * @return string item body html
2601 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2602 * @throws \ImagickException
2603 * @hook prepare_body_init item array before any work
2604 * @hook prepare_body_content_filter ('item'=>item array, 'filter_reasons'=>string array) before first bbcode to html
2605 * @hook prepare_body ('item'=>item array, 'html'=>body string, 'is_preview'=>boolean, 'filter_reasons'=>string array) after first bbcode to html
2606 * @hook prepare_body_final ('item'=>item array, 'html'=>body string) after attach icons and blockquote special case handling (spoiler, author)
2608 public static function prepareBody(array &$item, $attach = false, $is_preview = false)
2611 Hook::callAll('prepare_body_init', $item);
2613 // In order to provide theme developers more possibilities, event items
2614 // are treated differently.
2615 if ($item['object-type'] === Activity\ObjectType::EVENT && isset($item['event-id'])) {
2616 $ev = Event::getItemHTML($item);
2620 $tags = Tag::populateFromItem($item);
2622 $item['tags'] = $tags['tags'];
2623 $item['hashtags'] = $tags['hashtags'];
2624 $item['mentions'] = $tags['mentions'];
2626 // Compile eventual content filter reasons
2627 $filter_reasons = [];
2628 if (!$is_preview && public_contact() != $item['author-id']) {
2629 if (!empty($item['content-warning']) && (!local_user() || !DI::pConfig()->get(local_user(), 'system', 'disable_cw', false))) {
2630 $filter_reasons[] = DI::l10n()->t('Content warning: %s', $item['content-warning']);
2635 'filter_reasons' => $filter_reasons
2637 Hook::callAll('prepare_body_content_filter', $hook_data);
2638 $filter_reasons = $hook_data['filter_reasons'];
2642 $orig_body = $item['body'];
2643 $item['body'] = preg_replace("/\s*\[attachment .*\].*?\[\/attachment\]\s*/ism", '', $item['body']);
2644 self::putInCache($item);
2645 $item['body'] = $orig_body;
2646 $s = $item["rendered-html"];
2651 'preview' => $is_preview,
2652 'filter_reasons' => $filter_reasons
2654 Hook::callAll('prepare_body', $hook_data);
2655 $s = $hook_data['html'];
2659 // Replace the blockquotes with quotes that are used in mails.
2660 $mailquote = '<blockquote type="cite" class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">';
2661 $s = str_replace(['<blockquote>', '<blockquote class="spoiler">', '<blockquote class="author">'], [$mailquote, $mailquote, $mailquote], $s);
2665 $shared = BBCode::fetchShareAttributes($item['body']);
2666 if (!empty($shared['guid'])) {
2667 $shared_item = Post::selectFirst(['uri-id', 'plink'], ['guid' => $shared['guid']]);
2668 $shared_uri_id = $shared_item['uri-id'] ?? 0;
2669 $shared_plink = $shared_item['plink'] ?? '';
2670 $attachments = Post\Media::splitAttachments($shared_uri_id);
2671 $s = self::addVisualAttachments($attachments, $item, $s, true);
2672 $s = self::addLinkAttachment($attachments, $item, $s, true, '');
2673 $s = self::addNonVisualAttachments($attachments, $item, $s, true);
2679 $attachments = Post\Media::splitAttachments($item['uri-id']);
2680 $s = self::addVisualAttachments($attachments, $item, $s, false);
2681 $s = self::addLinkAttachment($attachments, $item, $s, false, $shared_plink);
2682 $s = self::addNonVisualAttachments($attachments, $item, $s, false);
2685 if (strpos($s, '<div class="map">') !== false && !empty($item['coord'])) {
2686 $x = Map::byCoordinates(trim($item['coord']));
2688 $s = preg_replace('/\<div class\=\"map\"\>/', '$0' . $x, $s);
2692 // Replace friendica image url size with theme preference.
2693 if (!empty($a->theme_info['item_image_size'])) {
2694 $ps = $a->theme_info['item_image_size'];
2695 $s = preg_replace('|(<img[^>]+src="[^"]+/photo/[0-9a-f]+)-[0-9]|', "$1-" . $ps, $s);
2698 $s = HTML::applyContentFilter($s, $filter_reasons);
2700 $hook_data = ['item' => $item, 'html' => $s];
2701 Hook::callAll('prepare_body_final', $hook_data);
2703 return $hook_data['html'];
2707 * Check if the body contains a link
2709 * @param string $body
2710 * @param string $url
2713 public static function containsLink(string $body, string $url)
2715 if (strpos($body, $url)) {
2718 foreach ([0, 1, 2] as $size) {
2719 if (preg_match('#/photo/.*-' . $size . '\.#ism', $url) &&
2720 strpos(preg_replace('#(/photo/.*)-[012]\.#ism', '$1-' . $size . '.', $body), $url)) {
2728 * Add visual attachments to the content
2730 * @param array $attachments
2731 * @param array $item
2732 * @param string $content
2733 * @return string modified content
2735 private static function addVisualAttachments(array $attachments, array $item, string $content, bool $shared)
2737 $stamp1 = microtime(true);
2741 foreach ($attachments['visual'] as $attachment) {
2742 if (self::containsLink($item['body'], $attachment['url'])) {
2746 $author = ['uid' => 0, 'id' => $item['author-id'],
2747 'network' => $item['author-network'], 'url' => $item['author-link']];
2748 $the_url = Contact::magicLinkByContact($author, $attachment['url']);
2750 if (($attachment['filetype'] == 'video')) {
2751 /// @todo Move the template to /content as well
2752 $media = Renderer::replaceMacros(Renderer::getMarkupTemplate('video_top.tpl'), [
2754 'id' => $item['author-id'],
2756 'mime' => $attachment['mimetype'],
2759 if ($item['post-type'] == Item::PT_VIDEO) {
2762 $trailing .= $media;
2764 } elseif ($attachment['filetype'] == 'audio') {
2765 $media = Renderer::replaceMacros(Renderer::getMarkupTemplate('content/audio.tpl'), [
2767 'id' => $item['author-id'],
2769 'mime' => $attachment['mimetype'],
2772 if ($item['post-type'] == Item::PT_AUDIO) {
2775 $trailing .= $media;
2777 } elseif ($attachment['filetype'] == 'image') {
2778 $media = Renderer::replaceMacros(Renderer::getMarkupTemplate('content/image.tpl'), [
2781 'attachment' => $attachment,
2784 $trailing .= $media;
2789 $content = str_replace(BBCode::ANCHOR, '<div class="body-attach">' . $leading . '<div class="clear"></div></div>' . BBCode::ANCHOR, $content);
2790 $content = str_replace(BBCode::ANCHOR, BBCode::ANCHOR . '<div class="body-attach">' . $trailing . '<div class="clear"></div></div>', $content);
2792 if ($leading != '') {
2793 $content = '<div class="body-attach">' . $leading . '<div class="clear"></div></div>' . $content;
2796 if ($trailing != '') {
2797 $content .= '<div class="body-attach">' . $trailing . '<div class="clear"></div></div>';
2801 DI::profiler()->saveTimestamp($stamp1, 'rendering');
2806 * Add link attachment to the content
2808 * @param array $attachments
2809 * @param array $item
2810 * @param string $content
2811 * @param bool $shared
2812 * @return string modified content
2814 private static function addLinkAttachment(array $attachments, array $item, string $content, bool $shared, string $ignore_link)
2816 $stamp1 = microtime(true);
2817 // @ToDo Check only for audio and video
2818 $preview = empty($attachments['visual']);
2820 if (!empty($attachments['link'])) {
2821 foreach ($attachments['link'] as $link) {
2822 if (!Strings::compareLink($link['url'], $ignore_link)) {
2823 $attachment = $link;
2828 if (!empty($attachment)) {
2832 'author_name' => $attachment['author-name'] ?? '',
2833 'author_url' => $attachment['author-url'] ?? '',
2834 'description' => $attachment['description'] ?? '',
2837 'provider_name' => $attachment['publisher-name'] ?? '',
2838 'provider_url' => $attachment['publisher-url'] ?? '',
2840 'title' => $attachment['name'] ?? '',
2842 'url' => $attachment['url']];
2845 if ($attachment['preview-width'] >= 500) {
2846 $data['image'] = $attachment['preview'] ?? '';
2848 $data['preview'] = $attachment['preview'] ?? '';
2851 } elseif (preg_match("/.*(\[attachment.*?\].*?\[\/attachment\]).*/ism", $item['body'], $match)) {
2852 $footer = $match[1];
2855 DI::profiler()->saveTimestamp($stamp1, 'rendering');
2857 if (!empty($footer) || !empty($data)) {
2858 // @todo Use a template
2859 $rendered = BBCode::convertAttachment($footer, BBCode::INTERNAL, false, $data);
2861 return str_replace(BBCode::ANCHOR, BBCode::ANCHOR . $rendered, $content);
2863 return $content . $rendered;
2870 * Add non visual attachments to the content
2872 * @param array $attachments
2873 * @param array $item
2874 * @param string $content
2875 * @return string modified content
2877 private static function addNonVisualAttachments(array $attachments, array $item, string $content)
2879 $stamp1 = microtime(true);
2881 foreach ($attachments['additional'] as $attachment) {
2882 if (strpos($item['body'], $attachment['url'])) {
2886 $author = ['uid' => 0, 'id' => $item['author-id'],
2887 'network' => $item['author-network'], 'url' => $item['author-link']];
2888 $the_url = Contact::magicLinkByContact($author, $attachment['url']);
2890 $title = Strings::escapeHtml(trim(($attachment['description'] ?? '') ?: $attachment['url']));
2892 if (!empty($attachment['size'])) {
2893 $title .= ' ' . $attachment['size'] . ' ' . DI::l10n()->t('bytes');
2896 /// @todo Use a template
2897 $icon = '<div class="attachtype icon s22 type-' . $attachment['filetype'] . ' subtype-' . $attachment['subtype'] . '"></div>';
2898 $trailing .= '<a href="' . strip_tags($the_url) . '" title="' . $title . '" class="attachlink" target="_blank" rel="noopener noreferrer" >' . $icon . '</a>';
2901 if ($trailing != '') {
2902 $content .= '<div class="body-attach">' . $trailing . '<div class="clear"></div></div>';
2905 DI::profiler()->saveTimestamp($stamp1, 'rendering');
2910 * get private link for item
2912 * @param array $item
2913 * @return boolean|array False if item has not plink, otherwise array('href'=>plink url, 'title'=>translated title)
2914 * @throws \Exception
2916 public static function getPlink($item)
2920 'href' => "display/" . $item['guid'],
2921 'orig' => "display/" . $item['guid'],
2922 'title' => DI::l10n()->t('View on separate page'),
2923 'orig_title' => DI::l10n()->t('view on separate page'),
2926 if (!empty($item['plink'])) {
2927 $ret["href"] = DI::baseUrl()->remove($item['plink']);
2928 $ret["title"] = DI::l10n()->t('link to source');
2930 } elseif (!empty($item['plink']) && ($item['private'] != self::PRIVATE)) {
2932 'href' => $item['plink'],
2933 'orig' => $item['plink'],
2934 'title' => DI::l10n()->t('link to source'),
2944 * Is the given item array a post that is sent as starting post to a forum?
2946 * @param array $item
2947 * @param array $owner
2949 * @return boolean "true" when it is a forum post
2951 public static function isForumPost(array $item, array $owner = [])
2953 if (empty($owner)) {
2954 $owner = User::getOwnerDataById($item['uid']);
2955 if (empty($owner)) {
2960 if (($item['author-id'] == $item['owner-id']) ||
2961 ($owner['id'] == $item['contact-id']) ||
2962 ($item['uri-id'] != $item['parent-uri-id']) ||
2967 return Contact::isForum($item['contact-id']);
2971 * Search item id for given URI or plink
2973 * @param string $uri
2974 * @param integer $uid
2976 * @return integer item id
2978 public static function searchByLink($uri, $uid = 0)
2980 $ssl_uri = str_replace('http://', 'https://', $uri);
2981 $uris = [$uri, $ssl_uri, Strings::normaliseLink($uri)];
2983 $item = Post::selectFirst(['id'], ['uri' => $uris, 'uid' => $uid]);
2984 if (DBA::isResult($item)) {
2988 $item = Post::selectFirst(['id'], ['plink' => $uris, 'uid' => $uid]);
2989 if (DBA::isResult($item)) {
2997 * Return the URI for a link to the post
2999 * @param string $uri URI or link to post
3001 * @return string URI
3003 public static function getURIByLink(string $uri)
3005 $ssl_uri = str_replace('http://', 'https://', $uri);
3006 $uris = [$uri, $ssl_uri, Strings::normaliseLink($uri)];
3008 $item = Post::selectFirst(['uri'], ['uri' => $uris]);
3009 if (DBA::isResult($item)) {
3010 return $item['uri'];
3013 $item = Post::selectFirst(['uri'], ['plink' => $uris]);
3014 if (DBA::isResult($item)) {
3015 return $item['uri'];
3022 * Fetches item for given URI or plink
3024 * @param string $uri
3025 * @param integer $uid
3027 * @return integer item id
3029 public static function fetchByLink(string $uri, int $uid = 0)
3031 Logger::info('Trying to fetch link', ['uid' => $uid, 'uri' => $uri]);
3032 $item_id = self::searchByLink($uri, $uid);
3033 if (!empty($item_id)) {
3034 Logger::info('Link found', ['uid' => $uid, 'uri' => $uri, 'id' => $item_id]);
3038 if ($fetched_uri = ActivityPub\Processor::fetchMissingActivity($uri)) {
3039 $item_id = self::searchByLink($fetched_uri, $uid);
3041 $item_id = Diaspora::fetchByURL($uri);
3044 if (!empty($item_id)) {
3045 Logger::info('Link fetched', ['uid' => $uid, 'uri' => $uri, 'id' => $item_id]);
3049 Logger::info('Link not found', ['uid' => $uid, 'uri' => $uri]);
3054 * Return share data from an item array (if the item is shared item)
3055 * We are providing the complete Item array, because at some time in the future
3056 * we hopefully will define these values not in the body anymore but in some item fields.
3057 * This function is meant to replace all similar functions in the system.
3059 * @param array $item
3061 * @return array with share information
3063 public static function getShareArray($item)
3065 if (!preg_match("/(.*?)\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism", $item['body'], $matches)) {
3069 $attribute_string = $matches[2];
3070 $attributes = ['comment' => trim($matches[1]), 'shared' => trim($matches[3])];
3071 foreach (['author', 'profile', 'avatar', 'guid', 'posted', 'link'] as $field) {
3072 if (preg_match("/$field=(['\"])(.+?)\\1/ism", $attribute_string, $matches)) {
3073 $attributes[$field] = trim(html_entity_decode($matches[2] ?? '', ENT_QUOTES, 'UTF-8'));
3080 * Fetch item information for shared items from the original items and adds it.
3082 * @param array $item
3084 * @return array item array with data from the original item
3086 public static function addShareDataFromOriginal(array $item)
3088 $shared = self::getShareArray($item);
3089 if (empty($shared)) {
3093 // Real reshares always have got a GUID.
3094 if (empty($shared['guid'])) {
3098 $uid = $item['uid'] ?? 0;
3100 // first try to fetch the item via the GUID. This will work for all reshares that had been created on this system
3101 $shared_item = Post::selectFirst(['title', 'body'], ['guid' => $shared['guid'], 'uid' => [0, $uid]]);
3102 if (!DBA::isResult($shared_item)) {
3103 if (empty($shared['link'])) {
3107 // Otherwhise try to find (and possibly fetch) the item via the link. This should work for Diaspora and ActivityPub posts
3108 $id = self::fetchByLink($shared['link'] ?? '', $uid);
3110 Logger::info('Original item not found', ['url' => $shared['link'] ?? '', 'callstack' => System::callstack()]);
3114 $shared_item = Post::selectFirst(['title', 'body'], ['id' => $id]);
3115 if (!DBA::isResult($shared_item)) {
3118 Logger::info('Got shared data from url', ['url' => $shared['link'], 'callstack' => System::callstack()]);
3120 Logger::info('Got shared data from guid', ['guid' => $shared['guid'], 'callstack' => System::callstack()]);
3123 if (!empty($shared_item['title'])) {
3124 $body = '[h3]' . $shared_item['title'] . "[/h3]\n" . $shared_item['body'];
3125 unset($shared_item['title']);
3127 $body = $shared_item['body'];
3130 $item['body'] = preg_replace("/\[share ([^\[\]]*)\].*\[\/share\]/ism", '[share $1]' . $body . '[/share]', $item['body']);
3131 unset($shared_item['body']);
3133 return array_merge($item, $shared_item);
3137 * Check a prospective item array against user-level permissions
3139 * @param array $item Expected keys: uri, gravity, and
3140 * author-link if is author-id is set,
3141 * owner-link if is owner-id is set,
3142 * causer-link if is causer-id is set.
3143 * @param int $user_id Local user ID
3145 * @throws \Exception
3147 protected static function isAllowedByUser(array $item, int $user_id)
3149 if (!empty($item['author-id']) && Contact\User::isBlocked($item['author-id'], $user_id)) {
3150 Logger::notice('Author is blocked by user', ['author-link' => $item['author-link'], 'uid' => $user_id, 'item-uri' => $item['uri']]);
3154 if (!empty($item['owner-id']) && Contact\User::isBlocked($item['owner-id'], $user_id)) {
3155 Logger::notice('Owner is blocked by user', ['owner-link' => $item['owner-link'], 'uid' => $user_id, 'item-uri' => $item['uri']]);
3159 // The causer is set during a thread completion, for example because of a reshare. It countains the responsible actor.
3160 if (!empty($item['causer-id']) && Contact\User::isBlocked($item['causer-id'], $user_id)) {
3161 Logger::notice('Causer is blocked by user', ['causer-link' => $item['causer-link'] ?? $item['causer-id'], 'uid' => $user_id, 'item-uri' => $item['uri']]);
3165 if (!empty($item['causer-id']) && ($item['gravity'] === GRAVITY_PARENT) && Contact\User::isIgnored($item['causer-id'], $user_id)) {
3166 Logger::notice('Causer is ignored by user', ['causer-link' => $item['causer-link'] ?? $item['causer-id'], 'uid' => $user_id, 'item-uri' => $item['uri']]);