3 * @copyright Copyright (C) 2010-2021, the Friendica project
5 * @license GNU AGPL version 3 or any later version
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU Affero General Public License as
9 * published by the Free Software Foundation, either version 3 of the
10 * License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU Affero General Public License for more details.
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <https://www.gnu.org/licenses/>.
22 namespace Friendica\Model;
24 use Friendica\Content\Text\BBCode;
25 use Friendica\Content\Text\HTML;
26 use Friendica\Core\Hook;
27 use Friendica\Core\Logger;
28 use Friendica\Core\Protocol;
29 use Friendica\Core\Renderer;
30 use Friendica\Core\Session;
31 use Friendica\Core\System;
32 use Friendica\Model\Tag;
33 use Friendica\Core\Worker;
34 use Friendica\Database\DBA;
36 use Friendica\Model\Post;
37 use Friendica\Protocol\Activity;
38 use Friendica\Protocol\ActivityPub;
39 use Friendica\Protocol\Diaspora;
40 use Friendica\Util\DateTimeFormat;
41 use Friendica\Util\Map;
42 use Friendica\Util\Network;
43 use Friendica\Util\Proxy;
44 use Friendica\Util\Strings;
45 use Friendica\Worker\Delivery;
46 use LanguageDetection\Language;
50 // Posting types, inspired by https://www.w3.org/TR/activitystreams-vocabulary/#object-types
57 const PT_DOCUMENT = 19;
59 const PT_PERSONAL_NOTE = 128;
61 // Posting reasons (Why had a post been stored for a user?)
68 const PR_FOLLOWER = 69;
69 const PR_ANNOUNCEMENT = 70;
70 const PR_COMMENT = 71;
74 const PR_FETCHED = 75;
76 // Field list that is used to display the items
77 const DISPLAY_FIELDLIST = [
78 'uid', 'id', 'parent', 'guid', 'network', 'gravity',
79 'uri-id', 'uri', 'thr-parent-id', 'thr-parent', 'parent-uri-id', 'parent-uri',
80 'commented', 'created', 'edited', 'received', 'verb', 'object-type', 'postopts', 'plink',
81 'wall', 'private', 'starred', 'origin', 'parent-origin', 'title', 'body', 'language',
82 'content-warning', 'location', 'coord', 'app', 'rendered-hash', 'rendered-html', 'object',
83 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid', 'mention',
84 'author-id', 'author-link', 'author-name', 'author-avatar', 'author-network',
85 'owner-id', 'owner-link', 'owner-name', 'owner-avatar', 'owner-network', 'owner-contact-type',
86 'causer-id', 'causer-link', 'causer-name', 'causer-avatar', 'causer-contact-type', 'causer-network',
87 'contact-id', 'contact-uid', 'contact-link', 'contact-name', 'contact-avatar',
88 'writable', 'self', 'cid', 'alias',
89 'event-created', 'event-edited', 'event-start', 'event-finish',
90 'event-summary', 'event-desc', 'event-location', 'event-type',
91 'event-nofinish', 'event-adjust', 'event-ignore', 'event-id',
92 'delivery_queue_count', 'delivery_queue_done', 'delivery_queue_failed'
95 // Field list that is used to deliver items via the protocols
96 const DELIVER_FIELDLIST = ['uid', 'id', 'parent', 'uri-id', 'uri', 'thr-parent', 'parent-uri', 'guid',
97 'parent-guid', 'received', 'created', 'edited', 'verb', 'object-type', 'object', 'target',
98 'private', 'title', 'body', 'raw-body', 'location', 'coord', 'app',
99 'inform', 'deleted', 'extid', 'post-type', 'post-reason', 'gravity',
100 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
101 'author-id', 'author-link', 'author-name', 'author-avatar', 'owner-id', 'owner-link', 'contact-uid',
102 'signed_text', 'network', 'wall', 'contact-id', 'plink', 'forum_mode', 'origin',
103 'thr-parent-id', 'parent-uri-id', 'postopts', 'pubmail',
104 'event-created', 'event-edited', 'event-start', 'event-finish',
105 'event-summary', 'event-desc', 'event-location', 'event-type',
106 'event-nofinish', 'event-adjust', 'event-ignore', 'event-id'];
108 // All fields in the item table
109 const ITEM_FIELDLIST = ['id', 'uid', 'parent', 'uri', 'parent-uri', 'thr-parent',
110 'guid', 'uri-id', 'parent-uri-id', 'thr-parent-id', 'vid',
111 'contact-id', 'wall', 'gravity', 'extid', 'psid',
112 'created', 'edited', 'commented', 'received', 'changed', 'verb',
113 'postopts', 'plink', 'resource-id', 'event-id', 'inform',
114 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid', 'post-type', 'post-reason',
115 'private', 'pubmail', 'visible', 'starred',
116 'unseen', 'deleted', 'origin', 'forum_mode', 'mention', 'global', 'network',
117 'title', 'content-warning', 'body', 'location', 'coord', 'app',
118 'rendered-hash', 'rendered-html', 'object-type', 'object', 'target-type', 'target',
119 'author-id', 'author-link', 'author-name', 'author-avatar', 'author-network',
120 'owner-id', 'owner-link', 'owner-name', 'owner-avatar', 'causer-id'];
122 // List of all verbs that don't need additional content data.
123 // Never reorder or remove entries from this list. Just add new ones at the end, if needed.
125 Activity::LIKE, Activity::DISLIKE,
126 Activity::ATTEND, Activity::ATTENDNO, Activity::ATTENDMAYBE,
135 * Update existing item entries
137 * @param array $fields The fields that are to be changed
138 * @param array $condition The condition for finding the item entries
140 * In the future we may have to change permissions as well.
141 * Then we had to add the user id as third parameter.
143 * A return value of "0" doesn't mean an error - but that 0 rows had been changed.
145 * @return integer|boolean number of affected rows - or "false" if there was an error
146 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
148 public static function update(array $fields, array $condition)
150 if (empty($condition) || empty($fields)) {
154 if (isset($fields['extid'])) {
155 $fields['external-id'] = ItemURI::getIdByURI($fields['extid']);
158 if (!empty($fields['verb'])) {
159 $fields['vid'] = Verb::getID($fields['verb']);
162 if (!empty($fields['edited'])) {
163 $previous = Post::selectFirst(['edited'], $condition);
166 $rows = Post::update($fields, $condition);
167 if (is_bool($rows)) {
171 // We only need to call the line by line update for specific fields
172 if (empty($fields['body']) && empty($fields['file']) &&
173 empty($fields['attach']) && empty($fields['edited'])) {
177 Logger::info('Updating per single row method', ['fields' => $fields, 'condition' => $condition]);
179 $items = Post::select(['id', 'origin', 'uri-id', 'uid', 'author-network'], $condition);
183 while ($item = DBA::fetch($items)) {
184 if (!empty($fields['body'])) {
185 Post\Media::insertFromAttachmentData($item['uri-id'], $fields['body']);
187 $content_fields = ['raw-body' => trim($fields['raw-body'] ?? $fields['body'])];
189 // Remove all media attachments from the body and store them in the post-media table
190 // @todo On shared postings (Diaspora style and commented reshare) don't fetch content from the shared part
191 $content_fields['raw-body'] = Post\Media::insertFromBody($item['uri-id'], $content_fields['raw-body']);
192 $content_fields['raw-body'] = self::setHashtags($content_fields['raw-body']);
194 if ($item['author-network'] != Protocol::DFRN) {
195 Post\Media::insertFromRelevantUrl($item['uri-id'], $content_fields['raw-body']);
198 Post\Content::update($item['uri-id'], $content_fields);
201 if (!empty($fields['file'])) {
202 Post\Category::storeTextByURIId($item['uri-id'], $item['uid'], $fields['file']);
205 if (!empty($fields['attach'])) {
206 Post\Media::insertFromAttachment($item['uri-id'], $fields['attach']);
209 // We only need to notfiy others when it is an original entry from us.
210 // Only call the notifier when the item had been edited and records had been changed.
211 if ($item['origin'] && !empty($fields['edited']) && ($previous['edited'] != $fields['edited'])) {
212 $notify_items[] = $item['id'];
218 foreach ($notify_items as $notify_item) {
219 $post = Post::selectFirst(['uri-id', 'uid'], ['id' => $notify_item]);
220 Worker::add(PRIORITY_HIGH, "Notifier", Delivery::POST, (int)$post['uri-id'], (int)$post['uid']);
227 * Delete an item and notify others about it - if it was ours
229 * @param array $condition The condition for finding the item entries
230 * @param integer $priority Priority for the notification
231 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
233 public static function markForDeletion($condition, $priority = PRIORITY_HIGH)
235 $items = Post::select(['id'], $condition);
236 while ($item = Post::fetch($items)) {
237 self::markForDeletionById($item['id'], $priority);
243 * Delete an item for an user and notify others about it - if it was ours
245 * @param array $condition The condition for finding the item entries
246 * @param integer $uid User who wants to delete this item
247 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
249 public static function deleteForUser($condition, $uid)
255 $items = Post::select(['id', 'uid', 'uri-id'], $condition);
256 while ($item = Post::fetch($items)) {
257 if (in_array($item['uid'], [$uid, 0])) {
258 Post\User::update($item['uri-id'], $uid, ['hidden' => true], true);
259 Post\ThreadUser::update($item['uri-id'], $uid, ['hidden' => true], true);
262 if ($item['uid'] == $uid) {
263 self::markForDeletionById($item['id'], PRIORITY_HIGH);
264 } elseif ($item['uid'] != 0) {
265 Logger::notice('Wrong ownership. Not deleting item', ['id' => $item['id']]);
272 * Mark an item for deletion, delete related data and notify others about it - if it was ours
274 * @param integer $item_id
275 * @param integer $priority Priority for the notification
277 * @return boolean success
278 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
280 public static function markForDeletionById($item_id, $priority = PRIORITY_HIGH)
282 Logger::info('Mark item for deletion by id', ['id' => $item_id, 'callstack' => System::callstack()]);
283 // locate item to be deleted
284 $fields = ['id', 'uri', 'uri-id', 'uid', 'parent', 'parent-uri-id', 'origin',
285 'deleted', 'resource-id', 'event-id',
286 'verb', 'object-type', 'object', 'target', 'contact-id', 'psid', 'gravity'];
287 $item = Post::selectFirst($fields, ['id' => $item_id]);
288 if (!DBA::isResult($item)) {
289 Logger::info('Item not found.', ['id' => $item_id]);
293 if ($item['deleted']) {
294 Logger::info('Item has already been marked for deletion.', ['id' => $item_id]);
298 $parent = Post::selectFirst(['origin'], ['id' => $item['parent']]);
299 if (!DBA::isResult($parent)) {
300 $parent = ['origin' => false];
303 // clean up categories and tags so they don't end up as orphans
304 Post\Category::deleteByURIId($item['uri-id'], $item['uid']);
307 * If item is a link to a photo resource, nuke all the associated photos
308 * (visitors will not have photo resources)
309 * This only applies to photos uploaded from the photos page. Photos inserted into a post do not
310 * generate a resource-id and therefore aren't intimately linked to the item.
312 /// @TODO: this should first check if photo is used elsewhere
313 if (strlen($item['resource-id'])) {
314 Photo::delete(['resource-id' => $item['resource-id'], 'uid' => $item['uid']]);
317 // If item is a link to an event, delete the event.
318 if (intval($item['event-id'])) {
319 Event::delete($item['event-id']);
322 // If item has attachments, drop them
323 $attachments = Post\Media::getByURIId($item['uri-id'], [Post\Media::DOCUMENT]);
324 foreach($attachments as $attachment) {
325 if (preg_match("|attach/(\d+)|", $attachment['url'], $matches)) {
326 Attach::delete(['id' => $matches[1], 'uid' => $item['uid']]);
330 // Set the item to "deleted"
331 $item_fields = ['deleted' => true, 'edited' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()];
332 Post::update($item_fields, ['id' => $item['id']]);
334 Post\Category::storeTextByURIId($item['uri-id'], $item['uid'], '');
336 if (!Post::exists(["`uri-id` = ? AND `uid` != 0 AND NOT `deleted`", $item['uri-id']])) {
337 self::markForDeletion(['uri-id' => $item['uri-id'], 'uid' => 0, 'deleted' => false], $priority);
340 Post\DeliveryData::delete($item['uri-id']);
342 // If it's the parent of a comment thread, kill all the kids
343 if ($item['gravity'] == GRAVITY_PARENT) {
344 self::markForDeletion(['parent' => $item['parent'], 'deleted' => false], $priority);
347 // Is it our comment and/or our thread?
348 if (($item['origin'] || $parent['origin']) && ($item['uid'] != 0)) {
349 // When we delete the original post we will delete all existing copies on the server as well
350 self::markForDeletion(['uri-id' => $item['uri-id'], 'deleted' => false], $priority);
352 // send the notification upstream/downstream
354 Worker::add(['priority' => $priority, 'dont_fork' => true], "Notifier", Delivery::DELETION, (int)$item['uri-id'], (int)$item['uid']);
356 } elseif ($item['uid'] != 0) {
357 Post\User::update($item['uri-id'], $item['uid'], ['hidden' => true]);
358 Post\ThreadUser::update($item['uri-id'], $item['uid'], ['hidden' => true]);
361 Logger::info('Item has been marked for deletion.', ['id' => $item_id]);
366 public static function guid($item, $notify)
368 if (!empty($item['guid'])) {
369 return Strings::escapeTags(trim($item['guid']));
373 // We have to avoid duplicates. So we create the GUID in form of a hash of the plink or uri.
374 // We add the hash of our own host because our host is the original creator of the post.
375 $prefix_host = DI::baseUrl()->getHostname();
379 // We are only storing the post so we create a GUID from the original hostname.
380 if (!empty($item['author-link'])) {
381 $parsed = parse_url($item['author-link']);
382 if (!empty($parsed['host'])) {
383 $prefix_host = $parsed['host'];
387 if (empty($prefix_host) && !empty($item['plink'])) {
388 $parsed = parse_url($item['plink']);
389 if (!empty($parsed['host'])) {
390 $prefix_host = $parsed['host'];
394 if (empty($prefix_host) && !empty($item['uri'])) {
395 $parsed = parse_url($item['uri']);
396 if (!empty($parsed['host'])) {
397 $prefix_host = $parsed['host'];
401 // Is it in the format data@host.tld? - Used for mail contacts
402 if (empty($prefix_host) && !empty($item['author-link']) && strstr($item['author-link'], '@')) {
403 $mailparts = explode('@', $item['author-link']);
404 $prefix_host = array_pop($mailparts);
408 if (!empty($item['plink'])) {
409 $guid = self::guidFromUri($item['plink'], $prefix_host);
410 } elseif (!empty($item['uri'])) {
411 $guid = self::guidFromUri($item['uri'], $prefix_host);
413 $guid = System::createUUID(hash('crc32', $prefix_host));
419 private static function contactId($item)
421 if (!empty($item['contact-id']) && DBA::exists('contact', ['self' => true, 'id' => $item['contact-id']])) {
422 return $item['contact-id'];
423 } elseif (($item['gravity'] == GRAVITY_PARENT) && !empty($item['uid']) && !empty($item['contact-id']) && Contact::isSharing($item['contact-id'], $item['uid'])) {
424 return $item['contact-id'];
425 } elseif (!empty($item['uid']) && !Contact::isSharing($item['author-id'], $item['uid'])) {
426 return $item['author-id'];
427 } elseif (!empty($item['contact-id'])) {
428 return $item['contact-id'];
430 $contact_id = Contact::getIdForURL($item['author-link'], $item['uid']);
431 if (!empty($contact_id)) {
435 return $item['author-id'];
439 * Write an item array into a spool file to be inserted later.
440 * This command is called whenever there are issues storing an item.
442 * @param array $item The item fields that are to be inserted
445 private static function spool($orig_item)
447 // Now we store the data in the spool directory
448 // We use "microtime" to keep the arrival order and "mt_rand" to avoid duplicates
449 $file = 'item-' . round(microtime(true) * 10000) . '-' . mt_rand() . '.msg';
451 $spoolpath = get_spoolpath();
452 if ($spoolpath != "") {
453 $spool = $spoolpath . '/' . $file;
455 file_put_contents($spool, json_encode($orig_item));
456 Logger::warning("Item wasn't stored - Item was spooled into file", ['file' => $file]);
461 * Check if the item array is a duplicate
464 * @return boolean is it a duplicate?
466 private static function isDuplicate(array $item)
468 // Checking if there is already an item with the same guid
469 $condition = ['guid' => $item['guid'], 'network' => $item['network'], 'uid' => $item['uid']];
470 if (Post::exists($condition)) {
471 Logger::notice('Found already existing item', $condition);
475 $condition = ['uri-id' => $item['uri-id'], 'uid' => $item['uid'],
476 'network' => [$item['network'], Protocol::DFRN]];
477 if (Post::exists($condition)) {
478 Logger::notice('duplicated item with the same uri found.', $condition);
482 // On Friendica and Diaspora the GUID is unique
483 if (in_array($item['network'], [Protocol::DFRN, Protocol::DIASPORA])) {
484 $condition = ['guid' => $item['guid'], 'uid' => $item['uid']];
485 if (Post::exists($condition)) {
486 Logger::notice('duplicated item with the same guid found.', $condition);
489 } elseif ($item['network'] == Protocol::OSTATUS) {
490 // Check for an existing post with the same content. There seems to be a problem with OStatus.
491 $condition = ["`body` = ? AND `network` = ? AND `created` = ? AND `contact-id` = ? AND `uid` = ?",
492 $item['body'], $item['network'], $item['created'], $item['contact-id'], $item['uid']];
493 if (Post::exists($condition)) {
494 Logger::notice('duplicated item with the same body found.', $item);
500 * Check for already added items.
501 * There is a timing issue here that sometimes creates double postings.
502 * An unique index would help - but the limitations of MySQL (maximum size of index values) prevent this.
504 if (($item['uid'] == 0) && Post::exists(['uri-id' => $item['uri-id'], 'uid' => 0])) {
505 Logger::notice('Global item already stored.', ['uri-id' => $item['uri-id'], 'network' => $item['network']]);
513 * Check if the item array is valid
516 * @return boolean item is valid
518 public static function isValid(array $item)
520 // When there is no content then we don't post it
521 if (($item['body'] . $item['title'] == '') && (empty($item['uri-id']) || !Post\Media::existsByURIId($item['uri-id']))) {
522 Logger::notice('No body, no title.');
526 if (!empty($item['uid'])) {
527 $owner = User::getOwnerDataById($item['uid'], false);
529 Logger::notice('Missing item user owner data', ['uid' => $item['uid']]);
533 if ($owner['account_expired'] || $owner['account_removed']) {
534 Logger::notice('Item user has been deleted/expired/removed', ['uid' => $item['uid'], 'deleted' => $owner['deleted'], 'account_expired' => $owner['account_expired'], 'account_removed' => $owner['account_removed']]);
539 if (!empty($item['author-id']) && Contact::isBlocked($item['author-id'])) {
540 Logger::notice('Author is blocked node-wide', ['author-link' => $item['author-link'], 'item-uri' => $item['uri']]);
544 if (!empty($item['author-link']) && Network::isUrlBlocked($item['author-link'])) {
545 Logger::notice('Author server is blocked', ['author-link' => $item['author-link'], 'item-uri' => $item['uri']]);
549 if (!empty($item['owner-id']) && Contact::isBlocked($item['owner-id'])) {
550 Logger::notice('Owner is blocked node-wide', ['owner-link' => $item['owner-link'], 'item-uri' => $item['uri']]);
554 if (!empty($item['owner-link']) && Network::isUrlBlocked($item['owner-link'])) {
555 Logger::notice('Owner server is blocked', ['owner-link' => $item['owner-link'], 'item-uri' => $item['uri']]);
559 if (!empty($item['uid']) && !self::isAllowedByUser($item, $item['uid'])) {
563 if ($item['verb'] == Activity::FOLLOW) {
564 if (!$item['origin'] && ($item['author-id'] == Contact::getPublicIdByUserId($item['uid']))) {
565 // Our own follow request can be relayed to us. We don't store it to avoid notification chaos.
566 Logger::info("Follow: Don't store not origin follow request", ['parent-uri' => $item['parent-uri']]);
570 $condition = ['verb' => Activity::FOLLOW, 'uid' => $item['uid'],
571 'parent-uri' => $item['parent-uri'], 'author-id' => $item['author-id']];
572 if (Post::exists($condition)) {
573 // It happens that we receive multiple follow requests by the same author - we only store one.
574 Logger::info('Follow: Found existing follow request from author', ['author-id' => $item['author-id'], 'parent-uri' => $item['parent-uri']]);
583 * Check if the item array is too old
586 * @return boolean item is too old
588 public static function isTooOld(array $item)
590 // check for create date and expire time
591 $expire_interval = DI::config()->get('system', 'dbclean-expire-days', 0);
593 $user = DBA::selectFirst('user', ['expire'], ['uid' => $item['uid']]);
594 if (DBA::isResult($user) && ($user['expire'] > 0) && (($user['expire'] < $expire_interval) || ($expire_interval == 0))) {
595 $expire_interval = $user['expire'];
598 if (($expire_interval > 0) && !empty($item['created'])) {
599 $expire_date = time() - ($expire_interval * 86400);
600 $created_date = strtotime($item['created']);
601 if ($created_date < $expire_date) {
602 Logger::notice('Item created before expiration interval.', [
603 'created' => date('c', $created_date),
604 'expired' => date('c', $expire_date),
615 * Return the id of the given item array if it has been stored before
618 * @return integer item id
620 private static function getDuplicateID(array $item)
622 if (empty($item['network']) || in_array($item['network'], Protocol::FEDERATED)) {
623 $condition = ["`uri-id` = ? AND `uid` = ? AND `network` IN (?, ?, ?, ?)",
624 $item['uri-id'], $item['uid'],
625 Protocol::ACTIVITYPUB, Protocol::DIASPORA, Protocol::DFRN, Protocol::OSTATUS];
626 $existing = Post::selectFirst(['id', 'network'], $condition);
627 if (DBA::isResult($existing)) {
628 // We only log the entries with a different user id than 0. Otherwise we would have too many false positives
629 if ($item['uid'] != 0) {
630 Logger::notice('Item already existed for user', [
631 'uri-id' => $item['uri-id'],
632 'uid' => $item['uid'],
633 'network' => $item['network'],
634 'existing_id' => $existing["id"],
635 'existing_network' => $existing["network"]
639 return $existing["id"];
646 * Fetch top-level parent data for the given item array
649 * @return array item array with parent data
652 private static function getTopLevelParent(array $item)
654 $fields = ['uid', 'uri', 'parent-uri', 'id', 'deleted',
655 'uri-id', 'parent-uri-id',
656 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
657 'wall', 'private', 'forum_mode', 'origin', 'author-id'];
658 $condition = ['uri-id' => $item['thr-parent-id'], 'uid' => $item['uid']];
659 $params = ['order' => ['id' => false]];
660 $parent = Post::selectFirst($fields, $condition, $params);
662 if (!DBA::isResult($parent)) {
663 Logger::notice('item parent was not found - ignoring item', ['thr-parent-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
667 if ($parent['uri-id'] == $parent['parent-uri-id']) {
671 $condition = ['uri-id' => $parent['parent-uri-id'],
672 'parent-uri-id' => $parent['parent-uri-id'],
673 'uid' => $parent['uid']];
674 $params = ['order' => ['id' => false]];
675 $toplevel_parent = Post::selectFirst($fields, $condition, $params);
676 if (!DBA::isResult($toplevel_parent)) {
677 Logger::notice('item top level parent was not found - ignoring item', ['parent-uri-id' => $parent['parent-uri-id'], 'uid' => $parent['uid']]);
681 return $toplevel_parent;
685 * Get the gravity for the given item array
688 * @return integer gravity
690 private static function getGravity(array $item)
692 $activity = DI::activity();
694 if (isset($item['gravity'])) {
695 return intval($item['gravity']);
696 } elseif ($item['parent-uri-id'] === $item['uri-id']) {
697 return GRAVITY_PARENT;
698 } elseif ($activity->match($item['verb'], Activity::POST)) {
699 return GRAVITY_COMMENT;
700 } elseif ($activity->match($item['verb'], Activity::FOLLOW)) {
701 return GRAVITY_ACTIVITY;
702 } elseif ($activity->match($item['verb'], Activity::ANNOUNCE)) {
703 return GRAVITY_ACTIVITY;
705 Logger::info('Unknown gravity for verb', ['verb' => $item['verb']]);
706 return GRAVITY_UNKNOWN; // Should not happen
709 public static function insert($item, $notify = false, $dontcache = false)
713 $priority = PRIORITY_HIGH;
715 // If it is a posting where users should get notifications, then define it as wall posting
719 $item['network'] = Protocol::DFRN;
720 $item['protocol'] = Conversation::PARCEL_DIRECT;
721 $item['direction'] = Conversation::PUSH;
723 if (in_array($notify, PRIORITIES)) {
727 $item['network'] = trim(($item['network'] ?? '') ?: Protocol::PHANTOM);
730 $uid = intval($item['uid']);
732 $item['guid'] = self::guid($item, $notify);
733 $item['uri'] = substr(trim($item['uri'] ?? '') ?: self::newURI($item['uid'], $item['guid']), 0, 255);
736 $item['uri-id'] = ItemURI::insert(['uri' => $item['uri'], 'guid' => $item['guid']]);
738 // Backward compatibility: parent-uri used to be the direct parent uri.
739 // If it is provided without a thr-parent, it probably is the old behavior.
740 $item['thr-parent'] = trim($item['thr-parent'] ?? $item['parent-uri'] ?? $item['uri']);
741 $item['parent-uri'] = $item['thr-parent'];
743 $item['thr-parent-id'] = $item['parent-uri-id'] = ItemURI::getIdByURI($item['thr-parent']);
745 // Store conversation data
746 $item = Conversation::insert($item);
749 * Do we already have this item?
750 * We have to check several networks since Friendica posts could be repeated
751 * via OStatus (maybe Diasporsa as well)
753 $duplicate = self::getDuplicateID($item);
758 // Additional duplicate checks
759 /// @todo Check why the first duplication check returns the item number and the second a 0
760 if (self::isDuplicate($item)) {
764 if (!isset($item['post-type'])) {
765 $item['post-type'] = empty($item['title']) ? self::PT_NOTE : self::PT_ARTICLE;
768 $item['wall'] = intval($item['wall'] ?? 0);
769 $item['extid'] = trim($item['extid'] ?? '');
770 $item['author-name'] = trim($item['author-name'] ?? '');
771 $item['author-link'] = trim($item['author-link'] ?? '');
772 $item['author-avatar'] = trim($item['author-avatar'] ?? '');
773 $item['owner-name'] = trim($item['owner-name'] ?? '');
774 $item['owner-link'] = trim($item['owner-link'] ?? '');
775 $item['owner-avatar'] = trim($item['owner-avatar'] ?? '');
776 $item['received'] = (isset($item['received']) ? DateTimeFormat::utc($item['received']) : DateTimeFormat::utcNow());
777 $item['created'] = (isset($item['created']) ? DateTimeFormat::utc($item['created']) : $item['received']);
778 $item['edited'] = (isset($item['edited']) ? DateTimeFormat::utc($item['edited']) : $item['created']);
779 $item['changed'] = (isset($item['changed']) ? DateTimeFormat::utc($item['changed']) : $item['created']);
780 $item['commented'] = (isset($item['commented']) ? DateTimeFormat::utc($item['commented']) : $item['created']);
781 $item['title'] = substr(trim($item['title'] ?? ''), 0, 255);
782 $item['location'] = trim($item['location'] ?? '');
783 $item['coord'] = trim($item['coord'] ?? '');
784 $item['visible'] = (isset($item['visible']) ? intval($item['visible']) : 1);
785 $item['deleted'] = 0;
786 $item['verb'] = trim($item['verb'] ?? '');
787 $item['object-type'] = trim($item['object-type'] ?? '');
788 $item['object'] = trim($item['object'] ?? '');
789 $item['target-type'] = trim($item['target-type'] ?? '');
790 $item['target'] = trim($item['target'] ?? '');
791 $item['plink'] = substr(trim($item['plink'] ?? ''), 0, 255);
792 $item['allow_cid'] = trim($item['allow_cid'] ?? '');
793 $item['allow_gid'] = trim($item['allow_gid'] ?? '');
794 $item['deny_cid'] = trim($item['deny_cid'] ?? '');
795 $item['deny_gid'] = trim($item['deny_gid'] ?? '');
796 $item['private'] = intval($item['private'] ?? self::PUBLIC);
797 $item['body'] = trim($item['body'] ?? '');
798 $item['raw-body'] = trim($item['raw-body'] ?? $item['body']);
799 $item['app'] = trim($item['app'] ?? '');
800 $item['origin'] = intval($item['origin'] ?? 0);
801 $item['postopts'] = trim($item['postopts'] ?? '');
802 $item['resource-id'] = trim($item['resource-id'] ?? '');
803 $item['event-id'] = intval($item['event-id'] ?? 0);
804 $item['inform'] = trim($item['inform'] ?? '');
805 $item['file'] = trim($item['file'] ?? '');
807 // Items cannot be stored before they happen ...
808 if ($item['created'] > DateTimeFormat::utcNow()) {
809 $item['created'] = DateTimeFormat::utcNow();
812 // We haven't invented time travel by now.
813 if ($item['edited'] > DateTimeFormat::utcNow()) {
814 $item['edited'] = DateTimeFormat::utcNow();
817 $item['plink'] = ($item['plink'] ?? '') ?: DI::baseUrl() . '/display/' . urlencode($item['guid']);
819 $item['gravity'] = self::getGravity($item);
821 $item['language'] = self::getLanguage($item);
823 $default = ['url' => $item['author-link'], 'name' => $item['author-name'],
824 'photo' => $item['author-avatar'], 'network' => $item['network']];
825 $item['author-id'] = ($item['author-id'] ?? 0) ?: Contact::getIdForURL($item['author-link'], 0, null, $default);
827 $default = ['url' => $item['owner-link'], 'name' => $item['owner-name'],
828 'photo' => $item['owner-avatar'], 'network' => $item['network']];
829 $item['owner-id'] = ($item['owner-id'] ?? 0) ?: Contact::getIdForURL($item['owner-link'], 0, null, $default);
831 $actor = ($item['gravity'] == GRAVITY_PARENT) ? $item['owner-id'] : $item['author-id'];
832 if (!$item['origin'] && ($item['uid'] != 0) && Contact::isSharing($actor, $item['uid'])) {
833 $item['post-reason'] = self::PR_FOLLOWER;
836 // Ensure that there is an avatar cache
837 Contact::checkAvatarCache($item['author-id']);
838 Contact::checkAvatarCache($item['owner-id']);
840 // The contact-id should be set before "self::insert" was called - but there seems to be issues sometimes
841 $item["contact-id"] = self::contactId($item);
843 if (!empty($item['direction']) && in_array($item['direction'], [Conversation::PUSH, Conversation::RELAY]) &&
844 self::isTooOld($item)) {
845 Logger::info('Item is too old', ['item' => $item]);
849 if (!self::isValid($item)) {
853 if ($item['gravity'] !== GRAVITY_PARENT) {
854 $toplevel_parent = self::getTopLevelParent($item);
855 if (empty($toplevel_parent)) {
859 // If the thread originated from this node, we check the permission against the thread starter
860 $condition = ['uri-id' => $toplevel_parent['uri-id'], 'wall' => true];
861 $localTopLevelParent = Post::selectFirst(['uid'], $condition);
862 if (!empty($localTopLevelParent['uid']) && !self::isAllowedByUser($item, $localTopLevelParent['uid'])) {
866 $parent_id = $toplevel_parent['id'];
867 $item['parent-uri'] = $toplevel_parent['uri'];
868 $item['parent-uri-id'] = $toplevel_parent['uri-id'];
869 $item['deleted'] = $toplevel_parent['deleted'];
870 $item['allow_cid'] = $toplevel_parent['allow_cid'];
871 $item['allow_gid'] = $toplevel_parent['allow_gid'];
872 $item['deny_cid'] = $toplevel_parent['deny_cid'];
873 $item['deny_gid'] = $toplevel_parent['deny_gid'];
874 $parent_origin = $toplevel_parent['origin'];
876 // Don't federate received participation messages
877 if ($item['verb'] != Activity::FOLLOW) {
878 $item['wall'] = $toplevel_parent['wall'];
880 $item['wall'] = false;
881 // Participations are technical messages, so they are set to "seen" automatically
882 $item['unseen'] = false;
886 * If the parent is private, force privacy for the entire conversation
887 * This differs from the above settings as it subtly allows comments from
888 * email correspondents to be private even if the overall thread is not.
890 if ($toplevel_parent['private']) {
891 $item['private'] = $toplevel_parent['private'];
895 * Edge case. We host a public forum that was originally posted to privately.
896 * The original author commented, but as this is a comment, the permissions
897 * weren't fixed up so it will still show the comment as private unless we fix it here.
899 if ((intval($toplevel_parent['forum_mode']) == 1) && ($toplevel_parent['private'] != self::PUBLIC)) {
900 $item['private'] = self::PUBLIC;
903 // If its a post that originated here then tag the thread as "mention"
904 if ($item['origin'] && $item['uid']) {
905 DBA::update('post-thread-user', ['mention' => true], ['uri-id' => $item['parent-uri-id'], 'uid' => $item['uid']]);
906 Logger::info('tagged thread as mention', ['parent' => $parent_id, 'parent-uri-id' => $item['parent-uri-id'], 'uid' => $item['uid']]);
909 // Update the contact relations
910 Contact\Relation::store($toplevel_parent['author-id'], $item['author-id'], $item['created']);
913 $parent_origin = $item['origin'];
916 $item['parent-uri-id'] = ItemURI::getIdByURI($item['parent-uri']);
917 $item['thr-parent-id'] = ItemURI::getIdByURI($item['thr-parent']);
919 // Is this item available in the global items (with uid=0)?
920 if ($item["uid"] == 0) {
921 $item["global"] = true;
923 // Set the global flag on all items if this was a global item entry
924 Post::update(['global' => true], ['uri-id' => $item['uri-id']]);
926 $item['global'] = Post::exists(['uid' => 0, 'uri-id' => $item['uri-id']]);
930 if (!empty($item["allow_cid"] . $item["allow_gid"] . $item["deny_cid"] . $item["deny_gid"])) {
931 $item["private"] = self::PRIVATE;
935 $item['edit'] = false;
936 $item['parent'] = $parent_id;
938 // Trigger automatic reactions for addons
939 $item['api_source'] = true;
941 // We have to tell the hooks who we are - this really should be improved
943 $_SESSION['authenticated'] = true;
944 $_SESSION['uid'] = $uid;
945 $dummy_session = true;
947 $dummy_session = false;
950 Hook::callAll('post_local', $item);
952 if ($dummy_session) {
953 unset($_SESSION['authenticated']);
954 unset($_SESSION['uid']);
957 Hook::callAll('post_remote', $item);
960 if (!empty($item['cancel'])) {
961 Logger::log('post cancelled by addon.');
965 if (empty($item['vid']) && !empty($item['verb'])) {
966 $item['vid'] = Verb::getID($item['verb']);
969 // Creates or assigns the permission set
970 $item['psid'] = PermissionSet::getIdFromACL(
978 if (!empty($item['extid'])) {
979 $item['external-id'] = ItemURI::getIdByURI($item['extid']);
982 if ($item['verb'] == Activity::ANNOUNCE) {
983 self::setOwnerforResharedItem($item);
986 if (isset($item['attachments'])) {
987 foreach ($item['attachments'] as $attachment) {
988 $attachment['uri-id'] = $item['uri-id'];
989 Post\Media::insert($attachment);
991 unset($item['attachments']);
994 Post\Media::insertFromAttachmentData($item['uri-id'], $item['body']);
996 // Remove all media attachments from the body and store them in the post-media table
997 $item['raw-body'] = Post\Media::insertFromBody($item['uri-id'], $item['raw-body']);
998 $item['raw-body'] = self::setHashtags($item['raw-body']);
1000 if (!DBA::exists('contact', ['id' => $item['author-id'], 'network' => Protocol::DFRN])) {
1001 Post\Media::insertFromRelevantUrl($item['uri-id'], $item['raw-body']);
1004 // Check for hashtags in the body and repair or add hashtag links
1005 $item['body'] = self::setHashtags($item['body']);
1007 if (stristr($item['verb'], Activity::POKE)) {
1008 $notify_type = Delivery::POKE;
1010 $notify_type = Delivery::POST;
1013 // Filling item related side tables
1014 if (!empty($item['attach'])) {
1015 Post\Media::insertFromAttachment($item['uri-id'], $item['attach']);
1018 if (empty($item['event-id'])) {
1019 unset($item['event-id']);
1021 $ev = Event::fromBBCode($item['body']);
1022 if ((!empty($ev['desc']) || !empty($ev['summary'])) && !empty($ev['start'])) {
1023 Logger::info('Event found.');
1024 $ev['cid'] = $item['contact-id'];
1025 $ev['uid'] = $item['uid'];
1026 $ev['uri'] = $item['uri'];
1027 $ev['edited'] = $item['edited'];
1028 $ev['private'] = $item['private'];
1029 $ev['guid'] = $item['guid'];
1030 $ev['plink'] = $item['plink'];
1031 $ev['network'] = $item['network'];
1032 $ev['protocol'] = $item['protocol'] ?? Conversation::PARCEL_UNKNOWN;
1033 $ev['direction'] = $item['direction'] ?? Conversation::UNKNOWN;
1034 $ev['source'] = $item['source'] ?? '';
1036 $event = DBA::selectFirst('event', ['id'], ['uri' => $item['uri'], 'uid' => $item['uid']]);
1037 if (DBA::isResult($event)) {
1038 $ev['id'] = $event['id'];
1041 $event_id = Event::store($ev);
1042 $item = Event::getItemArrayForId($event_id, $item);
1044 Logger::info('Event was stored', ['id' => $event_id]);
1048 if (empty($item['causer-id'])) {
1049 unset($item['causer-id']);
1052 Post::insert($item['uri-id'], $item);
1054 if ($item['gravity'] == GRAVITY_PARENT) {
1055 Post\Thread::insert($item['uri-id'], $item);
1058 if (!in_array($item['verb'], self::ACTIVITIES)) {
1059 Post\Content::insert($item['uri-id'], $item);
1062 // Create Diaspora signature
1063 if ($item['origin'] && empty($item['diaspora_signed_text']) && ($item['gravity'] != GRAVITY_PARENT)) {
1064 $signed = Diaspora::createCommentSignature($uid, $item);
1065 if (!empty($signed)) {
1066 $item['diaspora_signed_text'] = json_encode($signed);
1070 if (!empty($item['diaspora_signed_text'])) {
1071 DBA::replace('diaspora-interaction', ['uri-id' => $item['uri-id'], 'interaction' => $item['diaspora_signed_text']]);
1074 // Attached file links
1075 if (!empty($item['file'])) {
1076 Post\Category::storeTextByURIId($item['uri-id'], $item['uid'], $item['file']);
1079 // Delivery relevant data
1080 $delivery_data = Post\DeliveryData::extractFields($item);
1082 if (!empty($item['origin']) || !empty($item['wall']) || !empty($delivery_data['postopts']) || !empty($delivery_data['inform'])) {
1083 Post\DeliveryData::insert($item['uri-id'], $delivery_data);
1086 // Store tags from the body if this hadn't been handled previously in the protocol classes
1087 if (!Tag::existsForPost($item['uri-id'])) {
1088 Tag::storeFromBody($item['uri-id'], $item['body']);
1091 $condition = ['uri-id' => $item['uri-id'], 'uid' => $item['uid']];
1092 if (Post::exists($condition)) {
1093 Logger::notice('Item is already inserted - aborting', $condition);
1097 $post_user_id = Post\User::insert($item['uri-id'], $item['uid'], $item);
1098 if (!$post_user_id) {
1099 Logger::notice('Post-User is already inserted - aborting', ['uid' => $item['uid'], 'uri-id' => $item['uri-id']]);
1103 if ($item['gravity'] == GRAVITY_PARENT) {
1104 $item['post-user-id'] = $post_user_id;
1105 Post\ThreadUser::insert($item['uri-id'], $item['uid'], $item);
1108 Logger::notice('created item', ['post-id' => $post_user_id, 'uid' => $item['uid'], 'network' => $item['network'], 'uri-id' => $item['uri-id'], 'guid' => $item['guid']]);
1110 $posted_item = Post::selectFirst(self::ITEM_FIELDLIST, ['post-user-id' => $post_user_id]);
1111 if (!DBA::isResult($posted_item)) {
1112 // On failure store the data into a spool file so that the "SpoolPost" worker can try again later.
1113 Logger::warning('Could not store item. it will be spooled', ['id' => $post_user_id]);
1114 self::spool($orig_item);
1118 // update the commented timestamp on the parent
1119 if (DI::config()->get('system', 'like_no_comment')) {
1120 // Update when it is a comment
1121 $update_commented = in_array($posted_item['gravity'], [GRAVITY_PARENT, GRAVITY_COMMENT]);
1123 // Update when it isn't a follow or tag verb
1124 $update_commented = !in_array($posted_item['verb'], [Activity::FOLLOW, Activity::TAG]);
1127 if ($update_commented) {
1128 $fields = ['commented' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()];
1130 $fields = ['changed' => DateTimeFormat::utcNow()];
1133 Post::update($fields, ['uri-id' => $posted_item['parent-uri-id'], 'uid' => $posted_item['uid']]);
1135 // In that function we check if this is a forum post. Additionally we delete the item under certain circumstances
1136 if (self::tagDeliver($posted_item['uid'], $post_user_id)) {
1137 // Get the user information for the logging
1138 $user = User::getById($uid);
1140 Logger::notice('Item had been deleted', ['id' => $post_user_id, 'user' => $uid, 'account-type' => $user['account-type']]);
1146 if (!\Friendica\Content\Feature::isEnabled($posted_item['uid'], 'explicit_mentions') && ($posted_item['gravity'] == GRAVITY_COMMENT)) {
1147 Tag::createImplicitMentions($posted_item['uri-id'], $posted_item['thr-parent-id']);
1149 Hook::callAll('post_local_end', $posted_item);
1151 Hook::callAll('post_remote_end', $posted_item);
1155 if ($posted_item['gravity'] === GRAVITY_PARENT) {
1156 self::addShadow($post_user_id);
1158 self::addShadowPost($post_user_id);
1161 self::updateContact($posted_item);
1163 Post\UserNotification::setNotification($posted_item['uri-id'], $posted_item['uid']);
1165 check_user_notification($posted_item['uri-id'], $posted_item['uid']);
1167 // Distribute items to users who subscribed to their tags
1168 self::distributeByTags($posted_item);
1170 // Automatically reshare the item if the "remote_self" option is selected
1171 self::autoReshare($posted_item);
1173 $transmit = $notify || ($posted_item['visible'] && ($parent_origin || $posted_item['origin']));
1176 // Don't relay participation messages
1177 if (($posted_item['verb'] == Activity::FOLLOW) &&
1178 (!$posted_item['origin'] || ($posted_item['author-id'] != Contact::getPublicIdByUserId($uid)))) {
1179 Logger::info('Participation messages will not be relayed', ['item' => $posted_item['id'], 'uri' => $posted_item['uri'], 'verb' => $posted_item['verb']]);
1185 Worker::add(['priority' => $priority, 'dont_fork' => true], 'Notifier', $notify_type, (int)$posted_item['uri-id'], (int)$posted_item['uid']);
1188 return $post_user_id;
1192 * Change the owner of a parent item if it had been shared by a forum
1194 * (public) forum posts in the new format consist of the regular post by the author
1195 * followed by an announce message sent from the forum account.
1196 * Changing the owner helps in grouping forum posts.
1198 * @param array $item
1201 private static function setOwnerforResharedItem(array $item)
1203 $parent = Post::selectFirst(['id', 'causer-id', 'owner-id', 'author-id', 'author-link', 'origin', 'post-reason'],
1204 ['uri-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
1205 if (!DBA::isResult($parent)) {
1206 Logger::error('Parent not found', ['uri-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
1210 $author = Contact::selectFirst(['url', 'contact-type', 'network'], ['id' => $item['author-id']]);
1211 if (!DBA::isResult($author)) {
1212 Logger::error('Author not found', ['id' => $item['author-id']]);
1216 $cid = Contact::getIdForURL($author['url'], $item['uid']);
1217 if (empty($cid) || !Contact::isSharing($cid, $item['uid'])) {
1218 Logger::info('The resharer is not a following contact: quit', ['resharer' => $author['url'], 'uid' => $item['uid'], 'cid' => $cid]);
1222 if ($author['contact-type'] != Contact::TYPE_COMMUNITY) {
1223 if ($parent['post-reason'] == self::PR_ANNOUNCEMENT) {
1224 Logger::info('The parent is already marked as announced: quit', ['causer' => $parent['causer-id'], 'owner' => $parent['owner-id'], 'author' => $parent['author-id'], 'uid' => $item['uid']]);
1228 if (Contact::isSharing($parent['owner-id'], $item['uid'])) {
1229 Logger::info('The resharer is no forum: quit', ['resharer' => $item['author-id'], 'owner' => $parent['owner-id'], 'author' => $parent['author-id'], 'uid' => $item['uid']]);
1234 self::update(['post-reason' => self::PR_ANNOUNCEMENT, 'causer-id' => $item['author-id']], ['id' => $parent['id']]);
1235 Logger::info('Set announcement post-reason', ['uri-id' => $item['uri-id'], 'thr-parent-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
1239 * Distribute the given item to users who subscribed to their tags
1241 * @param array $item Processed item
1243 private static function distributeByTags(array $item)
1245 if (($item['uid'] != 0) || ($item['gravity'] != GRAVITY_PARENT) || !in_array($item['network'], Protocol::FEDERATED)) {
1249 $uids = Tag::getUIDListByURIId($item['uri-id']);
1250 foreach ($uids as $uid) {
1251 if (Contact::isSharing($item['author-id'], $uid)) {
1254 $fields = ['post-reason' => self::PR_TAG];
1257 $stored = self::storeForUserByUriId($item['uri-id'], $uid, $fields);
1258 Logger::info('Stored item for users', ['uri-id' => $item['uri-id'], 'uid' => $uid, 'fields' => $fields, 'stored' => $stored]);
1263 * Distributes public items to the receivers
1265 * @param integer $itemid Item ID that should be added
1266 * @param string $signed_text Original text (for Diaspora signatures), JSON encoded.
1267 * @throws \Exception
1269 public static function distribute($itemid, $signed_text = '')
1271 $condition = ["`id` IN (SELECT `parent` FROM `post-user-view` WHERE `id` = ?)", $itemid];
1272 $parent = Post::selectFirst(['owner-id'], $condition);
1273 if (!DBA::isResult($parent)) {
1274 Logger::warning('Item not found', ['condition' => $condition]);
1278 // Only distribute public items from native networks
1279 $condition = ['id' => $itemid, 'uid' => 0,
1280 'network' => array_merge(Protocol::FEDERATED ,['']),
1281 'visible' => true, 'deleted' => false, 'private' => [self::PUBLIC, self::UNLISTED]];
1282 $item = Post::selectFirst(self::ITEM_FIELDLIST, $condition);
1283 if (!DBA::isResult($item)) {
1284 Logger::warning('Item not found', ['condition' => $condition]);
1288 $origin = $item['origin'];
1292 /// @todo add a field "pcid" in the contact table that referrs to the public contact id.
1293 $owner = DBA::selectFirst('contact', ['url', 'nurl', 'alias'], ['id' => $parent['owner-id']]);
1294 if (!DBA::isResult($owner)) {
1298 $condition = ['nurl' => $owner['nurl'], 'rel' => [Contact::SHARING, Contact::FRIEND]];
1299 $contacts = DBA::select('contact', ['uid'], $condition);
1300 while ($contact = DBA::fetch($contacts)) {
1301 if ($contact['uid'] == 0) {
1305 $users[$contact['uid']] = $contact['uid'];
1307 DBA::close($contacts);
1309 $condition = ['alias' => $owner['url'], 'rel' => [Contact::SHARING, Contact::FRIEND]];
1310 $contacts = DBA::select('contact', ['uid'], $condition);
1311 while ($contact = DBA::fetch($contacts)) {
1312 if ($contact['uid'] == 0) {
1316 $users[$contact['uid']] = $contact['uid'];
1318 DBA::close($contacts);
1320 if (!empty($owner['alias'])) {
1321 $condition = ['nurl' => Strings::normaliseLink($owner['alias']), 'rel' => [Contact::SHARING, Contact::FRIEND]];
1322 $contacts = DBA::select('contact', ['uid'], $condition);
1323 while ($contact = DBA::fetch($contacts)) {
1324 if ($contact['uid'] == 0) {
1328 $users[$contact['uid']] = $contact['uid'];
1330 DBA::close($contacts);
1335 if ($item['uri-id'] != $item['parent-uri-id']) {
1336 $parents = Post::select(['uid', 'origin'], ["`uri-id` = ? AND `uid` != 0", $item['parent-uri-id']]);
1337 while ($parent = Post::fetch($parents)) {
1338 $users[$parent['uid']] = $parent['uid'];
1339 if ($parent['origin'] && !$origin) {
1340 $origin_uid = $parent['uid'];
1343 DBA::close($parents);
1346 foreach ($users as $uid) {
1347 if ($origin_uid == $uid) {
1348 $item['diaspora_signed_text'] = $signed_text;
1350 self::storeForUser($item, $uid);
1355 * Store a public item defined by their URI-ID for the given users
1357 * @param integer $uri_id URI-ID of the given item
1358 * @param integer $uid The user that will receive the item entry
1359 * @param array $fields Additional fields to be stored
1360 * @param integer $source_uid User id of the source post
1361 * @return integer stored item id
1363 public static function storeForUserByUriId(int $uri_id, int $uid, array $fields = [], int $source_uid = 0)
1365 if ($uid == $source_uid) {
1366 Logger::warning('target UID must not be be equal to the source UID', ['uri-id' => $uri_id, 'uid' => $uid]);
1370 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['uri-id' => $uri_id, 'uid' => $source_uid]);
1371 if (!DBA::isResult($item)) {
1372 Logger::warning('Item could not be fetched', ['uri-id' => $uri_id, 'uid' => $source_uid]);
1376 if (($source_uid == 0) && (($item['private'] == self::PRIVATE) || !in_array($item['network'], Protocol::FEDERATED))) {
1377 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']]);
1381 $item['post-reason'] = self::PR_STORED;
1383 $item = array_merge($item, $fields);
1385 $is_reshare = ($item['gravity'] == GRAVITY_ACTIVITY) && ($item['verb'] == Activity::ANNOUNCE);
1387 if ((($item['gravity'] == GRAVITY_PARENT) || $is_reshare) &&
1388 DI::pConfig()->get($uid, 'system', 'accept_only_sharer') &&
1389 !Contact::isSharingByURL($item['author-link'], $uid) &&
1390 !Contact::isSharingByURL($item['owner-link'], $uid)) {
1391 Logger::info('Contact is not a follower, thread will not be stored', ['author' => $item['author-link'], 'uid' => $uid]);
1395 if ((($item['gravity'] == GRAVITY_COMMENT) || $is_reshare) && !Post::exists(['uri-id' => $item['thr-parent-id'], 'uid' => $uid])) {
1396 // Only do an auto complete with the source uid "0" to prevent privavy problems
1397 $causer = $item['causer-id'] ?: $item['author-id'];
1398 $result = self::storeForUserByUriId($item['thr-parent-id'], $uid, ['causer-id' => $causer, 'post-reason' => self::PR_FETCHED]);
1399 Logger::info('Fetched thread parent', ['uri-id' => $item['thr-parent-id'], 'uid' => $uid, 'causer' => $causer, 'result' => $result]);
1402 $stored = self::storeForUser($item, $uid);
1403 Logger::info('Item stored for user', ['uri-id' => $item['uri-id'], 'uid' => $uid, 'source-uid' => $source_uid, 'stored' => $stored]);
1408 * Store a public item array for the given users
1410 * @param array $item The item entry that will be stored
1411 * @param integer $uid The user that will receive the item entry
1412 * @return integer stored item id
1413 * @throws \Exception
1415 private static function storeForUser(array $item, int $uid)
1417 if (Post::exists(['uri-id' => $item['uri-id'], 'uid' => $uid])) {
1418 Logger::info('Item already exists', ['uri-id' => $item['uri-id'], 'uid' => $uid]);
1423 unset($item['mention']);
1424 unset($item['starred']);
1425 unset($item['unseen']);
1426 unset($item['psid']);
1427 unset($item['pinned']);
1428 unset($item['ignored']);
1429 unset($item['pubmail']);
1430 unset($item['forum_mode']);
1432 unset($item['event-id']);
1433 unset($item['hidden']);
1434 unset($item['notification-type']);
1436 $item['uid'] = $uid;
1437 $item['origin'] = 0;
1440 if ($item['gravity'] == GRAVITY_PARENT) {
1441 $contact = Contact::getByURLForUser($item['owner-link'], $uid, false, ['id']);
1443 $contact = Contact::getByURLForUser($item['author-link'], $uid, false, ['id']);
1446 if (!empty($contact['id'])) {
1447 $item['contact-id'] = $contact['id'];
1449 // Shouldn't happen at all
1450 Logger::warning('contact-id could not be fetched', ['uid' => $uid, 'item' => $item]);
1451 $self = DBA::selectFirst('contact', ['id'], ['self' => true, 'uid' => $uid]);
1452 if (!DBA::isResult($self)) {
1453 // Shouldn't happen even less
1454 Logger::warning('self contact could not be fetched', ['uid' => $uid, 'item' => $item]);
1457 $item['contact-id'] = $self['id'];
1461 if ($item['gravity'] == GRAVITY_PARENT) {
1462 $contact = DBA::selectFirst('contact', [], ['id' => $item['contact-id'], 'self' => false]);
1463 if (DBA::isResult($contact)) {
1464 $notify = self::isRemoteSelf($contact, $item);
1468 $distributed = self::insert($item, $notify, true);
1470 if (!$distributed) {
1471 Logger::info("Distributed item wasn't stored", ['uri-id' => $item['uri-id'], 'user' => $uid]);
1473 Logger::info('Distributed item was stored', ['uri-id' => $item['uri-id'], 'user' => $uid, 'stored' => $distributed]);
1475 return $distributed;
1479 * Add a shadow entry for a given item id that is a thread starter
1481 * We store every public item entry additionally with the user id "0".
1482 * This is used for the community page and for the search.
1483 * It is planned that in the future we will store public item entries only once.
1485 * @param integer $itemid Item ID that should be added
1486 * @throws \Exception
1488 private static function addShadow($itemid)
1490 $fields = ['uid', 'private', 'visible', 'deleted', 'network', 'uri-id'];
1491 $condition = ['id' => $itemid, 'gravity' => GRAVITY_PARENT];
1492 $item = Post::selectFirst($fields, $condition);
1494 if (!DBA::isResult($item)) {
1498 // is it already a copy?
1499 if (($itemid == 0) || ($item['uid'] == 0)) {
1503 // Is it a visible public post?
1504 if (!$item["visible"] || $item["deleted"] || ($item["private"] == self::PRIVATE)) {
1508 // is it an entry from a connector? Only add an entry for natively connected networks
1509 if (!in_array($item["network"], array_merge(Protocol::FEDERATED ,['']))) {
1513 if (Post::exists(['uri-id' => $item['uri-id'], 'uid' => 0])) {
1517 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $itemid]);
1519 if (DBA::isResult($item)) {
1520 // Preparing public shadow (removing user specific data)
1523 unset($item['parent']);
1524 unset($item['wall']);
1525 unset($item['mention']);
1526 unset($item['origin']);
1527 unset($item['starred']);
1528 unset($item['postopts']);
1529 unset($item['inform']);
1530 unset($item['post-reason']);
1531 if ($item['uri-id'] == $item['parent-uri-id']) {
1532 $item['contact-id'] = $item['owner-id'];
1534 $item['contact-id'] = $item['author-id'];
1537 $public_shadow = self::insert($item, false, true);
1539 Logger::info('Stored public shadow', ['thread' => $itemid, 'id' => $public_shadow]);
1544 * Add a shadow entry for a given item id that is a comment
1546 * This function does the same like the function above - but for comments
1548 * @param integer $itemid Item ID that should be added
1549 * @throws \Exception
1551 private static function addShadowPost($itemid)
1553 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $itemid]);
1554 if (!DBA::isResult($item)) {
1558 // Is it a toplevel post?
1559 if ($item['gravity'] == GRAVITY_PARENT) {
1560 self::addShadow($itemid);
1564 // Is this a shadow entry?
1565 if ($item['uid'] == 0) {
1569 // Is there a shadow parent?
1570 if (!Post::exists(['uri-id' => $item['parent-uri-id'], 'uid' => 0])) {
1574 // Is there already a shadow entry?
1575 if (Post::exists(['uri-id' => $item['uri-id'], 'uid' => 0])) {
1579 // Save "origin" and "parent" state
1580 $origin = $item['origin'];
1581 $parent = $item['parent'];
1583 // Preparing public shadow (removing user specific data)
1586 unset($item['parent']);
1587 unset($item['wall']);
1588 unset($item['mention']);
1589 unset($item['origin']);
1590 unset($item['starred']);
1591 unset($item['postopts']);
1592 unset($item['inform']);
1593 unset($item['post-reason']);
1594 $item['contact-id'] = Contact::getIdForURL($item['author-link']);
1596 $public_shadow = self::insert($item, false, true);
1598 Logger::info('Stored public shadow', ['uri-id' => $item['uri-id'], 'id' => $public_shadow]);
1600 // If this was a comment to a Diaspora post we don't get our comment back.
1601 // This means that we have to distribute the comment by ourselves.
1602 if ($origin && Post::exists(['id' => $parent, 'network' => Protocol::DIASPORA])) {
1603 self::distribute($public_shadow);
1608 * Adds a language specification in a "language" element of given $arr.
1609 * Expects "body" element to exist in $arr.
1611 * @param array $item
1612 * @return string detected language
1613 * @throws \Text_LanguageDetect_Exception
1615 private static function getLanguage(array $item)
1617 if (!empty($item['language'])) {
1618 return $item['language'];
1621 if (!in_array($item['gravity'], [GRAVITY_PARENT, GRAVITY_COMMENT]) || empty($item['body'])) {
1625 // Convert attachments to links
1626 $naked_body = BBCode::removeAttachment($item['body']);
1627 if (empty($naked_body)) {
1631 // Remove links and pictures
1632 $naked_body = BBCode::removeLinks($naked_body);
1634 // Convert the title and the body to plain text
1635 $naked_body = trim($item['title'] . "\n" . BBCode::toPlaintext($naked_body));
1637 // Remove possibly remaining links
1638 $naked_body = preg_replace(Strings::autoLinkRegEx(), '', $naked_body);
1640 if (empty($naked_body)) {
1644 $availableLanguages = DI::l10n()->getAvailableLanguages();
1645 // See https://github.com/friendica/friendica/issues/10511
1646 // Persian is manually added to language detection until a persian translation is provided for the interface, at
1647 // which point it will be automatically available through `getAvailableLanguages()` and this should be removed.
1648 $availableLanguages['fa'] = 'fa';
1650 $ld = new Language($availableLanguages);
1651 $languages = $ld->detect($naked_body)->limit(0, 3)->close();
1652 if (is_array($languages)) {
1653 return json_encode($languages);
1659 public static function getLanguageMessage(array $item)
1661 $iso639 = new \Matriphe\ISO639\ISO639;
1663 $used_languages = '';
1664 foreach (json_decode($item['language'], true) as $language => $reliability) {
1665 $used_languages .= $iso639->languageByCode1($language) . ' (' . $language . "): " . number_format($reliability, 5) . '\n';
1667 $used_languages = DI::l10n()->t('Detected languages in this post:\n%s', $used_languages);
1668 return $used_languages;
1672 * Creates an unique guid out of a given uri
1674 * @param string $uri uri of an item entry
1675 * @param string $host hostname for the GUID prefix
1676 * @return string unique guid
1678 public static function guidFromUri($uri, $host)
1680 // Our regular guid routine is using this kind of prefix as well
1681 // We have to avoid that different routines could accidentally create the same value
1682 $parsed = parse_url($uri);
1684 // We use a hash of the hostname as prefix for the guid
1685 $guid_prefix = hash("crc32", $host);
1687 // Remove the scheme to make sure that "https" and "http" doesn't make a difference
1688 unset($parsed["scheme"]);
1690 // Glue it together to be able to make a hash from it
1691 $host_id = implode("/", $parsed);
1693 // We could use any hash algorithm since it isn't a security issue
1694 $host_hash = hash("ripemd128", $host_id);
1696 return $guid_prefix.$host_hash;
1700 * generate an unique URI
1702 * @param integer $uid User id
1703 * @param string $guid An existing GUID (Otherwise it will be generated)
1706 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1708 public static function newURI($uid, $guid = "")
1711 $guid = System::createUUID();
1714 return DI::baseUrl()->get() . '/objects/' . $guid;
1718 * Set "success_update" and "last-item" to the date of the last time we heard from this contact
1720 * This can be used to filter for inactive contacts.
1721 * Only do this for public postings to avoid privacy problems, since poco data is public.
1722 * Don't set this value if it isn't from the owner (could be an author that we don't know)
1724 * @param array $arr Contains the just posted item record
1725 * @throws \Exception
1727 private static function updateContact($arr)
1729 // Unarchive the author
1730 $contact = DBA::selectFirst('contact', [], ['id' => $arr["author-id"]]);
1731 if (DBA::isResult($contact)) {
1732 Contact::unmarkForArchival($contact);
1735 // Unarchive the contact if it's not our own contact
1736 $contact = DBA::selectFirst('contact', [], ['id' => $arr["contact-id"], 'self' => false]);
1737 if (DBA::isResult($contact)) {
1738 Contact::unmarkForArchival($contact);
1741 /// @todo On private posts we could obfuscate the date
1742 $update = ($arr['private'] != self::PRIVATE) || in_array($arr['network'], Protocol::FEDERATED);
1744 // Is it a forum? Then we don't care about the rules from above
1745 if (!$update && in_array($arr["network"], [Protocol::ACTIVITYPUB, Protocol::DFRN]) && ($arr["parent-uri-id"] === $arr["uri-id"])) {
1746 if (DBA::exists('contact', ['id' => $arr['contact-id'], 'forum' => true])) {
1752 // The "self" contact id is used (for example in the connectors) when the contact is unknown
1753 // So we have to ensure to only update the last item when it had been our own post,
1754 // or it had been done by a "regular" contact.
1755 if (!empty($arr['wall'])) {
1756 $condition = ['id' => $arr['contact-id']];
1758 $condition = ['id' => $arr['contact-id'], 'self' => false];
1760 DBA::update('contact', ['failed' => false, 'success_update' => $arr['received'], 'last-item' => $arr['received']], $condition);
1762 // Now do the same for the system wide contacts with uid=0
1763 if ($arr['private'] != self::PRIVATE) {
1764 DBA::update('contact', ['failed' => false, 'success_update' => $arr['received'], 'last-item' => $arr['received']],
1765 ['id' => $arr['owner-id']]);
1767 if ($arr['owner-id'] != $arr['author-id']) {
1768 DBA::update('contact', ['failed' => false, 'success_update' => $arr['received'], 'last-item' => $arr['received']],
1769 ['id' => $arr['author-id']]);
1774 public static function setHashtags($body)
1776 $body = BBCode::performWithEscapedTags($body, ['noparse', 'pre', 'code', 'img'], function ($body) {
1777 $tags = BBCode::getTags($body);
1780 if (!count($tags)) {
1784 // This sorting is important when there are hashtags that are part of other hashtags
1785 // Otherwise there could be problems with hashtags like #test and #test2
1786 // Because of this we are sorting from the longest to the shortest tag.
1787 usort($tags, function ($a, $b) {
1788 return strlen($b) <=> strlen($a);
1791 $URLSearchString = "^\[\]";
1793 // All hashtags should point to the home server if "local_tags" is activated
1794 if (DI::config()->get('system', 'local_tags')) {
1795 $body = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1796 "#[url=" . DI::baseUrl() . "/search?tag=$2]$2[/url]", $body);
1799 // mask hashtags inside of url, bookmarks and attachments to avoid urls in urls
1800 $body = preg_replace_callback("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1802 return ("[url=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/url]");
1805 $body = preg_replace_callback("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism",
1807 return ("[bookmark=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/bookmark]");
1810 $body = preg_replace_callback("/\[attachment (.*?)\](.*?)\[\/attachment\]/ism",
1812 return ("[attachment " . str_replace("#", "#", $match[1]) . "]" . $match[2] . "[/attachment]");
1815 // Repair recursive urls
1816 $body = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1819 foreach ($tags as $tag) {
1820 if ((strpos($tag, '#') !== 0) || strpos($tag, '[url=') || strlen($tag) < 2 || $tag[1] == '#') {
1824 $basetag = str_replace('_', ' ', substr($tag, 1));
1825 $newtag = '#[url=' . DI::baseUrl() . '/search?tag=' . $basetag . ']' . $basetag . '[/url]';
1827 $body = str_replace($tag, $newtag, $body);
1830 // Convert back the masked hashtags
1831 $body = str_replace("#", "#", $body);
1840 * look for mention tags and setup a second delivery chain for forum/community posts if appropriate
1843 * @param int $item_id
1844 * @return boolean true if item was deleted, else false
1845 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1846 * @throws \ImagickException
1848 private static function tagDeliver($uid, $item_id)
1852 $user = DBA::selectFirst('user', [], ['uid' => $uid]);
1853 if (!DBA::isResult($user)) {
1857 $community_page = (($user['page-flags'] == User::PAGE_FLAGS_COMMUNITY) ? true : false);
1858 $prvgroup = (($user['page-flags'] == User::PAGE_FLAGS_PRVGROUP) ? true : false);
1860 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $item_id]);
1861 if (!DBA::isResult($item)) {
1865 $link = Strings::normaliseLink(DI::baseUrl() . '/profile/' . $user['nickname']);
1868 * Diaspora uses their own hardwired link URL in @-tags
1869 * instead of the one we supply with webfinger
1871 $dlink = Strings::normaliseLink(DI::baseUrl() . '/u/' . $user['nickname']);
1873 $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism', $item['body'], $matches, PREG_SET_ORDER);
1875 foreach ($matches as $mtch) {
1876 if (Strings::compareLink($link, $mtch[1]) || Strings::compareLink($dlink, $mtch[1])) {
1878 Logger::log('mention found: ' . $mtch[2]);
1884 $tags = Tag::getByURIId($item['uri-id'], [Tag::MENTION, Tag::EXCLUSIVE_MENTION]);
1885 foreach ($tags as $tag) {
1886 if (Strings::compareLink($link, $tag['url']) || Strings::compareLink($dlink, $tag['url'])) {
1888 DI::logger()->info('mention found in tag.', ['url' => $tag['url']]);
1894 if (($community_page || $prvgroup) &&
1895 !$item['wall'] && !$item['origin'] && ($item['gravity'] == GRAVITY_PARENT)) {
1896 Logger::info('Delete private group/communiy top-level item without mention', ['id' => $item['id'], 'guid'=> $item['guid']]);
1897 Post\User::delete(['uri-id' => $item['uri-id'], 'uid' => $item['uid']]);
1903 $arr = ['item' => $item, 'user' => $user];
1905 Hook::callAll('tagged', $arr);
1907 if (!$community_page && !$prvgroup) {
1912 * tgroup delivery - setup a second delivery chain
1913 * prevent delivery looping - only proceed
1914 * if the message originated elsewhere and is a top-level post
1916 if ($item['wall'] || $item['origin'] || ($item['id'] != $item['parent'])) {
1920 self::performActivity($item['id'], 'announce', $uid);
1923 * All the following lines are only needed for private forums and compatibility to older systems without AP support.
1924 * A possible way would be that the followers list of a forum would always be readable by all followers.
1925 * So this would mean that the comment distribution could be done exactly for the intended audience.
1926 * Or possibly we could store the receivers that had been in the "announce" message above and use this.
1929 // now change this copy of the post to a forum head message and deliver to all the tgroup members
1930 $self = DBA::selectFirst('contact', ['id', 'name', 'url', 'thumb'], ['uid' => $uid, 'self' => true]);
1931 if (!DBA::isResult($self)) {
1935 $owner_id = Contact::getIdForURL($self['url']);
1937 // also reset all the privacy bits to the forum default permissions
1938 if ($user['allow_cid'] || $user['allow_gid'] || $user['deny_cid'] || $user['deny_gid']) {
1939 $private = self::PRIVATE;
1940 } elseif (DI::pConfig()->get($user['uid'], 'system', 'unlisted')) {
1941 $private = self::UNLISTED;
1943 $private = self::PUBLIC;
1946 $psid = PermissionSet::getIdFromACL(
1954 $forum_mode = ($prvgroup ? 2 : 1);
1956 $fields = ['wall' => true, 'origin' => true, 'forum_mode' => $forum_mode, 'contact-id' => $self['id'],
1957 'owner-id' => $owner_id, 'private' => $private, 'psid' => $psid];
1958 self::update($fields, ['id' => $item['id']]);
1960 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], 'Notifier', Delivery::POST, (int)$item['uri-id'], (int)$item['uid']);
1966 * Automatically reshare the item if the "remote_self" option is selected
1968 * @param array $item
1971 private static function autoReshare(array $item)
1973 if ($item['gravity'] != GRAVITY_PARENT) {
1977 if (!DBA::exists('contact', ['id' => $item['contact-id'], 'remote_self' => Contact::MIRROR_NATIVE_RESHARE])) {
1981 if (!in_array($item['network'], [Protocol::ACTIVITYPUB, Protocol::DFRN])) {
1985 Logger::info('Automatically reshare item', ['uid' => $item['uid'], 'id' => $item['id'], 'guid' => $item['guid'], 'uri-id' => $item['uri-id']]);
1987 self::performActivity($item['id'], 'announce', $item['uid']);
1990 public static function isRemoteSelf($contact, &$datarray)
1992 if (!$contact['remote_self']) {
1996 // Prevent the forwarding of posts that are forwarded
1997 if (!empty($datarray["extid"]) && ($datarray["extid"] == Protocol::DFRN)) {
1998 Logger::info('Already forwarded');
2002 // Prevent to forward already forwarded posts
2003 if ($datarray["app"] == DI::baseUrl()->getHostname()) {
2004 Logger::info('Already forwarded (second test)');
2008 // Only forward posts
2009 if ($datarray["verb"] != Activity::POST) {
2010 Logger::info('No post');
2014 if (($contact['network'] != Protocol::FEED) && ($datarray['private'] == self::PRIVATE)) {
2015 Logger::info('Not public');
2019 $datarray2 = $datarray;
2020 Logger::info('remote-self start', ['contact' => $contact['url'], 'remote_self'=> $contact['remote_self'], 'item' => $datarray]);
2021 if ($contact['remote_self'] == Contact::MIRROR_OWN_POST) {
2022 $self = DBA::selectFirst('contact', ['id', 'name', 'url', 'thumb'],
2023 ['uid' => $contact['uid'], 'self' => true]);
2024 if (DBA::isResult($self)) {
2025 $datarray['contact-id'] = $self["id"];
2027 $datarray['owner-name'] = $self["name"];
2028 $datarray['owner-link'] = $self["url"];
2029 $datarray['owner-avatar'] = $self["thumb"];
2031 $datarray['author-name'] = $datarray['owner-name'];
2032 $datarray['author-link'] = $datarray['owner-link'];
2033 $datarray['author-avatar'] = $datarray['owner-avatar'];
2035 unset($datarray['edited']);
2037 unset($datarray['network']);
2038 unset($datarray['owner-id']);
2039 unset($datarray['author-id']);
2042 if ($contact['network'] != Protocol::FEED) {
2043 $old_uri_id = $datarray["uri-id"] ?? 0;
2044 $datarray["guid"] = System::createUUID();
2045 unset($datarray["plink"]);
2046 $datarray["uri"] = self::newURI($contact['uid'], $datarray["guid"]);
2047 $datarray["uri-id"] = ItemURI::getIdByURI($datarray["uri"]);
2048 $datarray["extid"] = Protocol::DFRN;
2049 $urlpart = parse_url($datarray2['author-link']);
2050 $datarray["app"] = $urlpart["host"];
2051 if (!empty($old_uri_id)) {
2052 Post\Media::copy($old_uri_id, $datarray["uri-id"]);
2055 unset($datarray["parent-uri"]);
2056 unset($datarray["thr-parent"]);
2058 $datarray['private'] = self::PUBLIC;
2062 if ($contact['network'] != Protocol::FEED) {
2063 // Store the original post
2064 $result = self::insert($datarray2);
2065 Logger::info('remote-self post original item', ['contact' => $contact['url'], 'result'=> $result, 'item' => $datarray2]);
2067 $datarray["app"] = "Feed";
2071 return (bool)$result;
2078 * @param array $item
2081 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2082 * @throws \ImagickException
2084 public static function fixPrivatePhotos($s, $uid, $item = null, $cid = 0)
2086 if (DI::config()->get('system', 'disable_embedded')) {
2090 Logger::info('check for photos');
2091 $site = substr(DI::baseUrl(), strpos(DI::baseUrl(), '://'));
2096 $img_start = strpos($orig_body, '[img');
2097 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
2098 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
2100 while (($img_st_close !== false) && ($img_len !== false)) {
2101 $img_st_close++; // make it point to AFTER the closing bracket
2102 $image = substr($orig_body, $img_start + $img_st_close, $img_len);
2104 Logger::info('found photo', ['image' => $image]);
2106 if (stristr($image, $site . '/photo/')) {
2107 // Only embed locally hosted photos
2109 $i = basename($image);
2110 $i = str_replace(['.jpg', '.png', '.gif'], ['', '', ''], $i);
2111 $x = strpos($i, '-');
2114 $res = substr($i, $x + 1);
2115 $i = substr($i, 0, $x);
2116 $photo = Photo::getPhotoForUser($uid, $i, $res);
2117 if (DBA::isResult($photo)) {
2119 * Check to see if we should replace this photo link with an embedded image
2120 * 1. No need to do so if the photo is public
2121 * 2. If there's a contact-id provided, see if they're in the access list
2122 * for the photo. If so, embed it.
2123 * 3. Otherwise, if we have an item, see if the item permissions match the photo
2124 * permissions, regardless of order but first check to see if they're an exact
2125 * match to save some processing overhead.
2127 if (self::hasPermissions($photo)) {
2129 $recips = self::enumeratePermissions($photo);
2130 if (in_array($cid, $recips)) {
2134 if (self::samePermissions($uid, $item, $photo)) {
2140 $photo_img = Photo::getImageForPhoto($photo);
2141 // If a custom width and height were specified, apply before embedding
2142 if (preg_match("/\[img\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
2143 Logger::info('scaling photo');
2145 $width = intval($match[1]);
2146 $height = intval($match[2]);
2148 $photo_img->scaleDown(max($width, $height));
2151 $data = $photo_img->asString();
2152 $type = $photo_img->getType();
2154 Logger::info('replacing photo');
2155 $image = 'data:' . $type . ';base64,' . base64_encode($data);
2156 Logger::debug('replaced', ['image' => $image]);
2162 $new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/img]';
2163 $orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/img]'));
2164 if ($orig_body === false) {
2168 $img_start = strpos($orig_body, '[img');
2169 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
2170 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
2173 $new_body = $new_body . $orig_body;
2178 private static function hasPermissions($obj)
2180 return !empty($obj['allow_cid']) || !empty($obj['allow_gid']) ||
2181 !empty($obj['deny_cid']) || !empty($obj['deny_gid']);
2184 private static function samePermissions($uid, $obj1, $obj2)
2186 // first part is easy. Check that these are exactly the same.
2187 if (($obj1['allow_cid'] == $obj2['allow_cid'])
2188 && ($obj1['allow_gid'] == $obj2['allow_gid'])
2189 && ($obj1['deny_cid'] == $obj2['deny_cid'])
2190 && ($obj1['deny_gid'] == $obj2['deny_gid'])) {
2194 // This is harder. Parse all the permissions and compare the resulting set.
2195 $recipients1 = self::enumeratePermissions($obj1);
2196 $recipients2 = self::enumeratePermissions($obj2);
2200 /// @TODO Comparison of arrays, maybe use array_diff_assoc() here?
2201 return ($recipients1 == $recipients2);
2205 * Returns an array of contact-ids that are allowed to see this object
2207 * @param array $obj Item array with at least uid, allow_cid, allow_gid, deny_cid and deny_gid
2208 * @param bool $check_dead Prunes unavailable contacts from the result
2210 * @throws \Exception
2212 public static function enumeratePermissions(array $obj, bool $check_dead = false)
2214 $aclFormater = DI::aclFormatter();
2216 $allow_people = $aclFormater->expand($obj['allow_cid']);
2217 $allow_groups = Group::expand($obj['uid'], $aclFormater->expand($obj['allow_gid']), $check_dead);
2218 $deny_people = $aclFormater->expand($obj['deny_cid']);
2219 $deny_groups = Group::expand($obj['uid'], $aclFormater->expand($obj['deny_gid']), $check_dead);
2220 $recipients = array_unique(array_merge($allow_people, $allow_groups));
2221 $deny = array_unique(array_merge($deny_people, $deny_groups));
2222 $recipients = array_diff($recipients, $deny);
2226 public static function expire(int $uid, int $days, string $network = "", bool $force = false)
2228 if (!$uid || ($days < 1)) {
2232 $condition = ["`uid` = ? AND NOT `deleted` AND `gravity` = ?",
2233 $uid, GRAVITY_PARENT];
2236 * $expire_network_only = save your own wall posts
2237 * and just expire conversations started by others
2239 $expire_network_only = DI::pConfig()->get($uid, 'expire', 'network_only', false);
2241 if ($expire_network_only) {
2242 $condition[0] .= " AND NOT `wall`";
2245 if ($network != "") {
2246 $condition[0] .= " AND `network` = ?";
2247 $condition[] = $network;
2250 $condition[0] .= " AND `received` < UTC_TIMESTAMP() - INTERVAL ? DAY";
2251 $condition[] = $days;
2253 $items = Post::select(['resource-id', 'starred', 'id', 'post-type', 'uid', 'uri-id'], $condition);
2255 if (!DBA::isResult($items)) {
2259 $expire_items = DI::pConfig()->get($uid, 'expire', 'items', true);
2261 // Forcing expiring of items - but not notes and marked items
2263 $expire_items = true;
2266 $expire_notes = DI::pConfig()->get($uid, 'expire', 'notes', true);
2267 $expire_starred = DI::pConfig()->get($uid, 'expire', 'starred', true);
2268 $expire_photos = DI::pConfig()->get($uid, 'expire', 'photos', false);
2272 $priority = DI::config()->get('system', 'expire-notify-priority');
2274 while ($item = Post::fetch($items)) {
2275 // don't expire filed items
2276 if (DBA::exists('post-category', ['uri-id' => $item['uri-id'], 'uid' => $item['uid'], 'type' => Post\Category::FILE])) {
2280 // Only expire posts, not photos and photo comments
2282 if (!$expire_photos && !empty($item['resource-id'])) {
2284 } elseif (!$expire_starred && intval($item['starred'])) {
2286 } elseif (!$expire_notes && ($item['post-type'] == self::PT_PERSONAL_NOTE)) {
2288 } elseif (!$expire_items && ($item['post-type'] != self::PT_PERSONAL_NOTE)) {
2292 self::markForDeletionById($item['id'], $priority);
2297 Logger::log('User ' . $uid . ": expired $expired items; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
2300 public static function firstPostDate($uid, $wall = false)
2302 $user = User::getById($uid, ['register_date']);
2307 $condition = ["`uid` = ? AND `wall` = ? AND NOT `deleted` AND `visible` AND `received` >= ?",
2308 $uid, $wall, $user['register_date']];
2309 $params = ['order' => ['received' => false]];
2310 $thread = Post::selectFirstThread(['received'], $condition, $params);
2311 if (DBA::isResult($thread)) {
2312 $postdate = substr(DateTimeFormat::local($thread['received']), 0, 10);
2319 * add/remove activity to an item
2321 * Toggle activities as like,dislike,attend of an item
2323 * @param int $item_id
2324 * @param string $verb
2325 * Activity verb. One of
2326 * like, unlike, dislike, undislike, attendyes, unattendyes,
2327 * attendno, unattendno, attendmaybe, unattendmaybe,
2328 * announce, unannouce
2330 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2331 * @throws \ImagickException
2332 * @hook 'post_local_end'
2334 * 'post_id' => ID of posted item
2336 public static function performActivity(int $item_id, string $verb, int $uid)
2342 Logger::notice('Start create activity', ['verb' => $verb, 'item' => $item_id, 'user' => $uid]);
2344 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $item_id]);
2345 if (!DBA::isResult($item)) {
2346 Logger::log('like: unknown item ' . $item_id);
2350 $uri_id = $item['uri-id'];
2352 if (!in_array($item['uid'], [0, $uid])) {
2356 if (!Post::exists(['uri-id' => $item['parent-uri-id'], 'uid' => $uid])) {
2357 $stored = self::storeForUserByUriId($item['parent-uri-id'], $uid);
2358 if (($item['parent-uri-id'] == $item['uri-id']) && !empty($stored)) {
2359 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $stored]);
2360 if (!DBA::isResult($item)) {
2361 Logger::info('Could not fetch just created item - should not happen', ['stored' => $stored, 'uid' => $uid, 'uri-id' => $uri_id]);
2367 // Retrieves the local post owner
2368 $owner = User::getOwnerDataById($uid);
2369 if (empty($owner)) {
2370 Logger::info('Empty owner for user', ['uid' => $uid]);
2374 // Retrieve the current logged in user's public contact
2375 $author_id = Contact::getIdForURL($owner['url']);
2376 if (empty($author_id)) {
2377 Logger::info('Empty public contact');
2385 $activity = Activity::LIKE;
2389 $activity = Activity::DISLIKE;
2393 $activity = Activity::ATTEND;
2397 $activity = Activity::ATTENDNO;
2400 case 'unattendmaybe':
2401 $activity = Activity::ATTENDMAYBE;
2405 $activity = Activity::FOLLOW;
2409 $activity = Activity::ANNOUNCE;
2412 Logger::notice('unknown verb', ['verb' => $verb, 'item' => $item_id]);
2416 $mode = Strings::startsWith($verb, 'un') ? 'delete' : 'create';
2418 // Enable activity toggling instead of on/off
2419 $event_verb_flag = $activity === Activity::ATTEND || $activity === Activity::ATTENDNO || $activity === Activity::ATTENDMAYBE;
2421 // Look for an existing verb row
2422 // Event participation activities are mutually exclusive, only one of them can exist at all times.
2423 if ($event_verb_flag) {
2424 $verbs = [Activity::ATTEND, Activity::ATTENDNO, Activity::ATTENDMAYBE];
2426 // Translate to the index based activity index
2428 foreach ($verbs as $verb) {
2429 $vids[] = Verb::getID($verb);
2432 $vids = Verb::getID($activity);
2435 $condition = ['vid' => $vids, 'deleted' => false, 'gravity' => GRAVITY_ACTIVITY,
2436 'author-id' => $author_id, 'uid' => $item['uid'], 'thr-parent-id' => $uri_id];
2437 $like_item = Post::selectFirst(['id', 'guid', 'verb'], $condition);
2439 if (DBA::isResult($like_item)) {
2441 * Truth table for existing activities
2443 * | Inputs || Outputs |
2444 * |----------------------------||-------------------|
2445 * | Mode | Event | Same verb || Delete? | Return? |
2446 * |--------|-------|-----------||---------|---------|
2447 * | create | Yes | Yes || No | Yes |
2448 * | create | Yes | No || Yes | No |
2449 * | create | No | Yes || No | Yes |
2450 * | create | No | No || N/A†|
2451 * | delete | Yes | Yes || Yes | N/A‡ |
2452 * | delete | Yes | No || No | N/A‡ |
2453 * | delete | No | Yes || Yes | N/A‡ |
2454 * | delete | No | No || N/A†|
2455 * |--------|-------|-----------||---------|---------|
2456 * | A | B | C || A xor C | !B or C |
2458 * †Can't happen: It's impossible to find an existing non-event activity without
2459 * the same verb because we are only looking for this single verb.
2461 * ‡ The "mode = delete" is returning early whether an existing activity was found or not.
2463 if ($mode == 'create' xor $like_item['verb'] == $activity) {
2464 self::markForDeletionById($like_item['id']);
2467 if (!$event_verb_flag || $like_item['verb'] == $activity) {
2472 // No need to go further if we aren't creating anything
2473 if ($mode == 'delete') {
2477 $objtype = $item['resource-id'] ? Activity\ObjectType::IMAGE : Activity\ObjectType::NOTE;
2480 'guid' => System::createUUID(),
2481 'uri' => self::newURI($item['uid']),
2482 'uid' => $item['uid'],
2483 'contact-id' => $owner['id'],
2484 'wall' => $item['wall'],
2486 'network' => Protocol::DFRN,
2487 'protocol' => Conversation::PARCEL_DIRECT,
2488 'direction' => Conversation::PUSH,
2489 'gravity' => GRAVITY_ACTIVITY,
2490 'parent' => $item['id'],
2491 'thr-parent' => $item['uri'],
2492 'owner-id' => $author_id,
2493 'author-id' => $author_id,
2494 'body' => $activity,
2495 'verb' => $activity,
2496 'object-type' => $objtype,
2497 'allow_cid' => $item['allow_cid'],
2498 'allow_gid' => $item['allow_gid'],
2499 'deny_cid' => $item['deny_cid'],
2500 'deny_gid' => $item['deny_gid'],
2505 $signed = Diaspora::createLikeSignature($uid, $new_item);
2506 if (!empty($signed)) {
2507 $new_item['diaspora_signed_text'] = json_encode($signed);
2510 $new_item_id = self::insert($new_item);
2512 // If the parent item isn't visible then set it to visible
2513 if (!$item['visible']) {
2514 self::update(['visible' => true], ['id' => $item['id']]);
2517 $new_item['id'] = $new_item_id;
2519 Hook::callAll('post_local_end', $new_item);
2525 * Fetch the SQL condition for the given user id
2527 * @param integer $owner_id User ID for which the permissions should be fetched
2528 * @return array condition
2530 public static function getPermissionsConditionArrayByUserId(int $owner_id)
2532 $local_user = local_user();
2533 $remote_user = Session::getRemoteContactID($owner_id);
2535 // default permissions - anonymous user
2536 $condition = ["`private` != ?", self::PRIVATE];
2538 if ($local_user && ($local_user == $owner_id)) {
2539 // Profile owner - everything is visible
2541 } elseif ($remote_user) {
2542 // Authenticated visitor - fetch the matching permissionsets
2543 $set = PermissionSet::get($owner_id, $remote_user);
2545 $condition = ["(`private` != ? OR (`private` = ? AND `wall`
2546 AND `psid` IN (" . implode(', ', array_fill(0, count($set), '?')) . ")))",
2547 self::PRIVATE, self::PRIVATE];
2548 $condition = array_merge($condition, $set);
2556 * Get a permission SQL string for the given user
2558 * @param int $owner_id
2559 * @param string $table
2562 public static function getPermissionsSQLByUserId(int $owner_id, string $table = '')
2564 $local_user = local_user();
2565 $remote_user = Session::getRemoteContactID($owner_id);
2567 if (!empty($table)) {
2568 $table = DBA::quoteIdentifier($table) . '.';
2572 * Construct permissions
2574 * default permissions - anonymous user
2576 $sql = sprintf(" AND " . $table . "`private` != %d", self::PRIVATE);
2578 // Profile owner - everything is visible
2579 if ($local_user && ($local_user == $owner_id)) {
2581 } elseif ($remote_user) {
2583 * Authenticated visitor. Unless pre-verified,
2584 * check that the contact belongs to this $owner_id
2585 * and load the groups the visitor belongs to.
2586 * If pre-verified, the caller is expected to have already
2587 * done this and passed the groups into this function.
2589 $set = PermissionSet::get($owner_id, $remote_user);
2592 $sql_set = sprintf(" OR (" . $table . "`private` = %d AND " . $table . "`wall` AND " . $table . "`psid` IN (", self::PRIVATE) . implode(',', $set) . "))";
2597 $sql = sprintf(" AND (" . $table . "`private` != %d", self::PRIVATE) . $sql_set . ")";
2604 * get translated item type
2606 * @param array $item
2607 * @param \Friendica\Core\L10n $l10n
2610 public static function postType(array $item, \Friendica\Core\L10n $l10n)
2612 if (!empty($item['event-id'])) {
2613 return $l10n->t('event');
2614 } elseif (!empty($item['resource-id'])) {
2615 return $l10n->t('photo');
2616 } elseif ($item['gravity'] == GRAVITY_ACTIVITY) {
2617 return $l10n->t('activity');
2618 } elseif ($item['gravity'] == GRAVITY_COMMENT) {
2619 return $l10n->t('comment');
2622 return $l10n->t('post');
2626 * Sets the "rendered-html" field of the provided item
2628 * Body is preserved to avoid side-effects as we modify it just-in-time for spoilers and private image links
2630 * @param array $item
2632 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2633 * @todo Remove reference, simply return "rendered-html" and "rendered-hash"
2635 public static function putInCache(&$item)
2637 // Save original body to prevent addons to modify it
2638 $body = $item['body'];
2640 $rendered_hash = $item['rendered-hash'] ?? '';
2641 $rendered_html = $item['rendered-html'] ?? '';
2643 if ($rendered_hash == ''
2644 || $rendered_html == ''
2645 || $rendered_hash != hash('md5', BBCode::VERSION . '::' . $body)
2646 || DI::config()->get('system', 'ignore_cache')
2648 self::addRedirToImageTags($item);
2650 $item['rendered-html'] = BBCode::convertForUriId($item['uri-id'], $item['body']);
2651 $item['rendered-hash'] = hash('md5', BBCode::VERSION . '::' . $body);
2653 $hook_data = ['item' => $item, 'rendered-html' => $item['rendered-html'], 'rendered-hash' => $item['rendered-hash']];
2654 Hook::callAll('put_item_in_cache', $hook_data);
2655 $item['rendered-html'] = $hook_data['rendered-html'];
2656 $item['rendered-hash'] = $hook_data['rendered-hash'];
2659 // Update if the generated values differ from the existing ones
2660 if ((($rendered_hash != $item['rendered-hash']) || ($rendered_html != $item['rendered-html'])) && !empty($item['id'])) {
2663 'rendered-html' => $item['rendered-html'],
2664 'rendered-hash' => $item['rendered-hash']
2666 ['id' => $item['id']]
2671 $item['body'] = $body;
2675 * Find any non-embedded images in private items and add redir links to them
2677 * @param array &$item The field array of an item row
2679 private static function addRedirToImageTags(array &$item)
2684 $cnt = preg_match_all('|\[img\](http[^\[]*?/photo/[a-fA-F0-9]+?(-[0-9]\.[\w]+?)?)\[\/img\]|', $item['body'], $matches, PREG_SET_ORDER);
2686 foreach ($matches as $mtch) {
2687 if (strpos($mtch[1], '/redir') !== false) {
2691 if ((local_user() == $item['uid']) && ($item['private'] == self::PRIVATE) && ($item['contact-id'] != $app->getContactId()) && ($item['network'] == Protocol::DFRN)) {
2692 $img_url = 'redir/' . $item['contact-id'] . '?url=' . urlencode($mtch[1]);
2693 $item['body'] = str_replace($mtch[0], '[img]' . $img_url . '[/img]', $item['body']);
2700 * Given an item array, convert the body element from bbcode to html and add smilie icons.
2701 * If attach is true, also add icons for item attachments.
2703 * @param array $item
2704 * @param boolean $attach
2705 * @param boolean $is_preview
2706 * @return string item body html
2707 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2708 * @throws \ImagickException
2709 * @hook prepare_body_init item array before any work
2710 * @hook prepare_body_content_filter ('item'=>item array, 'filter_reasons'=>string array) before first bbcode to html
2711 * @hook prepare_body ('item'=>item array, 'html'=>body string, 'is_preview'=>boolean, 'filter_reasons'=>string array) after first bbcode to html
2712 * @hook prepare_body_final ('item'=>item array, 'html'=>body string) after attach icons and blockquote special case handling (spoiler, author)
2714 public static function prepareBody(array &$item, $attach = false, $is_preview = false)
2717 Hook::callAll('prepare_body_init', $item);
2719 // In order to provide theme developers more possibilities, event items
2720 // are treated differently.
2721 if ($item['object-type'] === Activity\ObjectType::EVENT && isset($item['event-id'])) {
2722 $ev = Event::getItemHTML($item);
2726 $tags = Tag::populateFromItem($item);
2728 $item['tags'] = $tags['tags'];
2729 $item['hashtags'] = $tags['hashtags'];
2730 $item['mentions'] = $tags['mentions'];
2732 $body = $item['body'] ?? '';
2733 $shared = BBCode::fetchShareAttributes($body);
2734 if (!empty($shared['guid'])) {
2735 $shared_item = Post::selectFirst(['uri-id', 'plink'], ['guid' => $shared['guid']]);
2736 $shared_uri_id = $shared_item['uri-id'] ?? 0;
2737 $shared_links = [strtolower($shared_item['plink'] ?? '')];
2738 $shared_attachments = Post\Media::splitAttachments($shared_uri_id, $shared['guid']);
2739 $shared_links = array_merge($shared_links, array_column($shared_attachments['visual'], 'url'));
2740 $shared_links = array_merge($shared_links, array_column($shared_attachments['link'], 'url'));
2741 $shared_links = array_merge($shared_links, array_column($shared_attachments['additional'], 'url'));
2742 $item['body'] = self::replaceVisualAttachments($shared_attachments, $item['body']);
2747 $attachments = Post\Media::splitAttachments($item['uri-id'], $item['guid'] ?? '', $shared_links);
2748 $item['body'] = self::replaceVisualAttachments($attachments, $item['body'] ?? '');
2750 $item['body'] = preg_replace("/\s*\[attachment .*?\].*?\[\/attachment\]\s*/ism", "\n", $item['body']);
2751 self::putInCache($item);
2752 $item['body'] = $body;
2753 $s = $item["rendered-html"];
2755 // Compile eventual content filter reasons
2756 $filter_reasons = [];
2757 if (!$is_preview && public_contact() != $item['author-id']) {
2758 if (!empty($item['content-warning']) && (!local_user() || !DI::pConfig()->get(local_user(), 'system', 'disable_cw', false))) {
2759 $filter_reasons[] = DI::l10n()->t('Content warning: %s', $item['content-warning']);
2764 'filter_reasons' => $filter_reasons
2766 Hook::callAll('prepare_body_content_filter', $hook_data);
2767 $filter_reasons = $hook_data['filter_reasons'];
2774 'preview' => $is_preview,
2775 'filter_reasons' => $filter_reasons
2777 Hook::callAll('prepare_body', $hook_data);
2778 $s = $hook_data['html'];
2782 // Replace the blockquotes with quotes that are used in mails.
2783 $mailquote = '<blockquote type="cite" class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">';
2784 $s = str_replace(['<blockquote>', '<blockquote class="spoiler">', '<blockquote class="author">'], [$mailquote, $mailquote, $mailquote], $s);
2788 if (!empty($shared_attachments)) {
2789 $s = self::addVisualAttachments($shared_attachments, $item, $s, true);
2790 $s = self::addLinkAttachment($shared_uri_id ?: $item['uri-id'], $shared_attachments, $body, $s, true, []);
2791 $s = self::addNonVisualAttachments($shared_attachments, $item, $s, true);
2792 $body = preg_replace("/\s*\[share .*?\].*?\[\/share\]\s*/ism", '', $body);
2795 $s = self::addVisualAttachments($attachments, $item, $s, false);
2796 $s = self::addLinkAttachment($item['uri-id'], $attachments, $body, $s, false, $shared_links);
2797 $s = self::addNonVisualAttachments($attachments, $item, $s, false);
2800 if (strpos($s, '<div class="map">') !== false && !empty($item['coord'])) {
2801 $x = Map::byCoordinates(trim($item['coord']));
2803 $s = preg_replace('/\<div class\=\"map\"\>/', '$0' . $x, $s);
2807 // Replace friendica image url size with theme preference.
2808 if (!empty($a->getThemeInfoValue('item_image_size'))) {
2809 $ps = $a->getThemeInfoValue('item_image_size');
2810 $s = preg_replace('|(<img[^>]+src="[^"]+/photo/[0-9a-f]+)-[0-9]|', "$1-" . $ps, $s);
2813 $s = HTML::applyContentFilter($s, $filter_reasons);
2815 $hook_data = ['item' => $item, 'html' => $s];
2816 Hook::callAll('prepare_body_final', $hook_data);
2818 return $hook_data['html'];
2822 * Check if the body contains a link
2824 * @param string $body
2825 * @param string $url
2829 public static function containsLink(string $body, string $url, int $type = 0)
2831 // Make sure that for example site parameters aren't used when testing if the link is contained in the body
2832 $urlparts = parse_url($url);
2833 unset($urlparts['query']);
2834 unset($urlparts['fragment']);
2835 $url = Network::unparseURL($urlparts);
2837 // Remove media links to only search in embedded content
2838 // @todo Check images for image link, audio for audio links, ...
2839 if (in_array($type, [Post\Media::AUDIO, Post\Media::VIDEO, Post\Media::IMAGE])) {
2840 $body = preg_replace("/\[url=[^\[\]]*\](.*)\[\/url\]/Usi", ' $1 ', $body);
2843 if (strpos($body, $url)) {
2846 foreach ([0, 1, 2] as $size) {
2847 if (preg_match('#/photo/.*-' . $size . '\.#ism', $url) &&
2848 strpos(preg_replace('#(/photo/.*)-[012]\.#ism', '$1-' . $size . '.', $body), $url)) {
2856 * Replace visual attachments in the body
2858 * @param array $attachments
2859 * @param string $body
2860 * @return string modified body
2862 private static function replaceVisualAttachments(array $attachments, string $body)
2864 DI::profiler()->startRecording('rendering');
2866 foreach ($attachments['visual'] as $attachment) {
2867 if (!empty($attachment['preview'])) {
2868 $body = str_replace($attachment['preview'], Post\Media::getPreviewUrlForId($attachment['id'], Proxy::SIZE_LARGE), $body);
2869 } elseif ($attachment['filetype'] == 'image') {
2870 $body = str_replace($attachment['url'], Post\Media::getUrlForId($attachment['id']), $body);
2873 DI::profiler()->stopRecording();
2878 * Add visual attachments to the content
2880 * @param array $attachments
2881 * @param array $item
2882 * @param string $content
2883 * @return string modified content
2885 private static function addVisualAttachments(array $attachments, array $item, string $content, bool $shared)
2887 DI::profiler()->startRecording('rendering');
2891 // @todo In the future we should make a single for the template engine with all media in it. This allows more flexibilty.
2892 foreach ($attachments['visual'] as $attachment) {
2893 if (self::containsLink($item['body'], $attachment['preview'] ?? $attachment['url'], $attachment['type'])) {
2897 if (!empty($attachment['preview'])) {
2898 $preview_url = Post\Media::getPreviewUrlForId($attachment['id'], Proxy::SIZE_LARGE);
2903 if (($attachment['filetype'] == 'video')) {
2904 /// @todo Move the template to /content as well
2905 $media = Renderer::replaceMacros(Renderer::getMarkupTemplate('video_top.tpl'), [
2907 'id' => $attachment['id'],
2908 'src' => $attachment['url'],
2909 'name' => $attachment['name'] ?: $attachment['url'],
2910 'preview' => $preview_url,
2911 'mime' => $attachment['mimetype'],
2914 if (($item['post-type'] ?? null) == Item::PT_VIDEO) {
2917 $trailing .= $media;
2919 } elseif ($attachment['filetype'] == 'audio') {
2920 $media = Renderer::replaceMacros(Renderer::getMarkupTemplate('content/audio.tpl'), [
2922 'id' => $attachment['id'],
2923 'src' => $attachment['url'],
2924 'name' => $attachment['name'] ?: $attachment['url'],
2925 'mime' => $attachment['mimetype'],
2928 if (($item['post-type'] ?? null) == Item::PT_AUDIO) {
2931 $trailing .= $media;
2933 } elseif ($attachment['filetype'] == 'image') {
2934 $media = Renderer::replaceMacros(Renderer::getMarkupTemplate('content/image.tpl'), [
2936 'src' => Post\Media::getUrlForId($attachment['id']),
2937 'preview' => Post\Media::getPreviewUrlForId($attachment['id'], ($attachment['width'] > $attachment['height']) ? Proxy::SIZE_MEDIUM : Proxy::SIZE_LARGE),
2938 'attachment' => $attachment,
2941 // On Diaspora posts the attached pictures are leading
2942 if ($item['network'] == Protocol::DIASPORA) {
2945 $trailing .= $media;
2951 $content = str_replace(BBCode::TOP_ANCHOR, '<div class="body-attach">' . $leading . '<div class="clear"></div></div>' . BBCode::TOP_ANCHOR, $content);
2952 $content = str_replace(BBCode::BOTTOM_ANCHOR, '<div class="body-attach">' . $trailing . '<div class="clear"></div></div>' . BBCode::BOTTOM_ANCHOR, $content);
2954 if ($leading != '') {
2955 $content = '<div class="body-attach">' . $leading . '<div class="clear"></div></div>' . $content;
2958 if ($trailing != '') {
2959 $content .= '<div class="body-attach">' . $trailing . '<div class="clear"></div></div>';
2963 DI::profiler()->stopRecording();
2968 * Add link attachment to the content
2970 * @param array $attachments
2971 * @param string $body
2972 * @param string $content
2973 * @param bool $shared
2974 * @param array $ignore_links A list of URLs to ignore
2975 * @return string modified content
2977 private static function addLinkAttachment(int $uriid, array $attachments, string $body, string $content, bool $shared, array $ignore_links)
2979 DI::profiler()->startRecording('rendering');
2980 // @ToDo Check only for audio and video
2981 $preview = empty($attachments['visual']);
2983 if (!empty($attachments['link'])) {
2984 foreach ($attachments['link'] as $link) {
2986 foreach ($ignore_links as $ignore_link) {
2987 if (Strings::compareLink($link['url'], $ignore_link)) {
2991 // @todo Judge between the links to use the one with most information
2992 if (!$found && (empty($attachment) || !empty($link['author-name']) ||
2993 (empty($attachment['name']) && !empty($link['name'])) ||
2994 (empty($attachment['description']) && !empty($link['description'])) ||
2995 (empty($attachment['preview']) && !empty($link['preview'])))) {
2996 $attachment = $link;
3001 if (!empty($attachment)) {
3004 'author_name' => $attachment['author-name'] ?? '',
3005 'author_url' => $attachment['author-url'] ?? '',
3006 'description' => $attachment['description'] ?? '',
3009 'provider_name' => $attachment['publisher-name'] ?? '',
3010 'provider_url' => $attachment['publisher-url'] ?? '',
3012 'title' => $attachment['name'] ?? '',
3014 'url' => $attachment['url']];
3016 if ($preview && !empty($attachment['preview'])) {
3017 if ($attachment['preview-width'] >= 500) {
3018 $data['image'] = Post\Media::getPreviewUrlForId($attachment['id'], Proxy::SIZE_MEDIUM);
3020 $data['preview'] = Post\Media::getPreviewUrlForId($attachment['id'], Proxy::SIZE_MEDIUM);
3024 if (!empty($data['description']) && !empty($content)) {
3025 similar_text($data['description'], $content, $percent);
3030 if (!empty($data['description']) && (($data['title'] == $data['description']) || ($percent > 95) || (strpos($content, $data['description']) !== false))) {
3031 $data['description'] = '';
3034 if (($data['author_name'] ?? '') == ($data['provider_name'] ?? '')) {
3035 $data['author_name'] = '';
3038 if (($data['author_url'] ?? '') == ($data['provider_url'] ?? '')) {
3039 $data['author_url'] = '';
3041 } elseif (preg_match("/.*(\[attachment.*?\].*?\[\/attachment\]).*/ism", $body, $match)) {
3042 $data = BBCode::getAttachmentData($match[1]);
3044 DI::profiler()->stopRecording();
3046 if (isset($data['url']) && !in_array($data['url'], $ignore_links)) {
3047 if (!empty($data['description']) || !empty($data['image']) || !empty($data['preview'])) {
3048 $parts = parse_url($data['url']);
3049 if (!empty($parts['scheme']) && !empty($parts['host'])) {
3050 if (empty($data['provider_name'])) {
3051 $data['provider_name'] = $parts['host'];
3053 if (empty($data['provider_url']) || empty(parse_url($data['provider_url'], PHP_URL_SCHEME))) {
3054 $data['provider_url'] = $parts['scheme'] . '://' . $parts['host'];
3056 if (!empty($parts['port'])) {
3057 $data['provider_url'] .= ':' . $parts['port'];
3062 // @todo Use a template
3063 $rendered = BBCode::convertAttachment('', BBCode::INTERNAL, false, $data, $uriid);
3064 } elseif (!self::containsLink($content, $data['url'], Post\Media::HTML)) {
3065 $rendered = Renderer::replaceMacros(Renderer::getMarkupTemplate('content/link.tpl'), [
3066 '$url' => $data['url'],
3067 '$title' => $data['title'],
3074 return str_replace(BBCode::BOTTOM_ANCHOR, BBCode::BOTTOM_ANCHOR . $rendered, $content);
3076 return $content . $rendered;
3083 * Add non visual attachments to the content
3085 * @param array $attachments
3086 * @param array $item
3087 * @param string $content
3088 * @return string modified content
3090 private static function addNonVisualAttachments(array $attachments, array $item, string $content)
3092 DI::profiler()->startRecording('rendering');
3094 foreach ($attachments['additional'] as $attachment) {
3095 if (strpos($item['body'], $attachment['url'])) {
3099 $author = ['uid' => 0, 'id' => $item['author-id'],
3100 'network' => $item['author-network'], 'url' => $item['author-link']];
3101 $the_url = Contact::magicLinkByContact($author, $attachment['url']);
3103 $title = Strings::escapeHtml(trim(($attachment['description'] ?? '') ?: $attachment['url']));
3105 if (!empty($attachment['size'])) {
3106 $title .= ' ' . $attachment['size'] . ' ' . DI::l10n()->t('bytes');
3109 /// @todo Use a template
3110 $icon = '<div class="attachtype icon s22 type-' . $attachment['filetype'] . ' subtype-' . $attachment['subtype'] . '"></div>';
3111 $trailing .= '<a href="' . strip_tags($the_url) . '" title="' . $title . '" class="attachlink" target="_blank" rel="noopener noreferrer" >' . $icon . '</a>';
3114 if ($trailing != '') {
3115 $content .= '<div class="body-attach">' . $trailing . '<div class="clear"></div></div>';
3118 DI::profiler()->stopRecording();
3123 * get private link for item
3125 * @param array $item
3126 * @return boolean|array False if item has not plink, otherwise array('href'=>plink url, 'title'=>translated title)
3127 * @throws \Exception
3129 public static function getPlink($item)
3133 'href' => "display/" . $item['guid'],
3134 'orig' => "display/" . $item['guid'],
3135 'title' => DI::l10n()->t('View on separate page'),
3136 'orig_title' => DI::l10n()->t('View on separate page'),
3139 if (!empty($item['plink'])) {
3140 $ret['href'] = DI::baseUrl()->remove($item['plink']);
3141 $ret['title'] = DI::l10n()->t('Link to source');
3143 } elseif (!empty($item['plink']) && ($item['private'] != self::PRIVATE)) {
3145 'href' => $item['plink'],
3146 'orig' => $item['plink'],
3147 'title' => DI::l10n()->t('Link to source'),
3148 'orig_title' => DI::l10n()->t('Link to source'),
3158 * Is the given item array a post that is sent as starting post to a forum?
3160 * @param array $item
3161 * @param array $owner
3163 * @return boolean "true" when it is a forum post
3165 public static function isForumPost(array $item, array $owner = [])
3167 if (empty($owner)) {
3168 $owner = User::getOwnerDataById($item['uid']);
3169 if (empty($owner)) {
3174 if (($item['author-id'] == $item['owner-id']) ||
3175 ($owner['id'] == $item['contact-id']) ||
3176 ($item['uri-id'] != $item['parent-uri-id']) ||
3181 return Contact::isForum($item['contact-id']);
3185 * Search item id for given URI or plink
3187 * @param string $uri
3188 * @param integer $uid
3190 * @return integer item id
3192 public static function searchByLink($uri, $uid = 0)
3194 $ssl_uri = str_replace('http://', 'https://', $uri);
3195 $uris = [$uri, $ssl_uri, Strings::normaliseLink($uri)];
3197 $item = Post::selectFirst(['id'], ['uri' => $uris, 'uid' => $uid]);
3198 if (DBA::isResult($item)) {
3202 $item = Post::selectFirst(['id'], ['plink' => $uris, 'uid' => $uid]);
3203 if (DBA::isResult($item)) {
3211 * Return the URI for a link to the post
3213 * @param string $uri URI or link to post
3215 * @return string URI
3217 public static function getURIByLink(string $uri)
3219 $ssl_uri = str_replace('http://', 'https://', $uri);
3220 $uris = [$uri, $ssl_uri, Strings::normaliseLink($uri)];
3222 $item = Post::selectFirst(['uri'], ['uri' => $uris]);
3223 if (DBA::isResult($item)) {
3224 return $item['uri'];
3227 $item = Post::selectFirst(['uri'], ['plink' => $uris]);
3228 if (DBA::isResult($item)) {
3229 return $item['uri'];
3236 * Fetches item for given URI or plink
3238 * @param string $uri
3239 * @param integer $uid
3241 * @return integer item id
3243 public static function fetchByLink(string $uri, int $uid = 0)
3245 Logger::info('Trying to fetch link', ['uid' => $uid, 'uri' => $uri]);
3246 $item_id = self::searchByLink($uri, $uid);
3247 if (!empty($item_id)) {
3248 Logger::info('Link found', ['uid' => $uid, 'uri' => $uri, 'id' => $item_id]);
3252 if ($fetched_uri = ActivityPub\Processor::fetchMissingActivity($uri)) {
3253 $item_id = self::searchByLink($fetched_uri, $uid);
3255 $item_id = Diaspora::fetchByURL($uri);
3258 if (!empty($item_id)) {
3259 Logger::info('Link fetched', ['uid' => $uid, 'uri' => $uri, 'id' => $item_id]);
3263 Logger::info('Link not found', ['uid' => $uid, 'uri' => $uri]);
3268 * Return share data from an item array (if the item is shared item)
3269 * We are providing the complete Item array, because at some time in the future
3270 * we hopefully will define these values not in the body anymore but in some item fields.
3271 * This function is meant to replace all similar functions in the system.
3273 * @param array $item
3275 * @return array with share information
3277 public static function getShareArray($item)
3279 if (!preg_match("/(.*?)\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism", $item['body'], $matches)) {
3283 $attribute_string = $matches[2];
3284 $attributes = ['comment' => trim($matches[1]), 'shared' => trim($matches[3])];
3285 foreach (['author', 'profile', 'avatar', 'guid', 'posted', 'link'] as $field) {
3286 if (preg_match("/$field=(['\"])(.+?)\\1/ism", $attribute_string, $matches)) {
3287 $attributes[$field] = trim(html_entity_decode($matches[2] ?? '', ENT_QUOTES, 'UTF-8'));
3294 * Fetch item information for shared items from the original items and adds it.
3296 * @param array $item
3298 * @return array item array with data from the original item
3300 public static function addShareDataFromOriginal(array $item)
3302 $shared = self::getShareArray($item);
3303 if (empty($shared)) {
3307 // Real reshares always have got a GUID.
3308 if (empty($shared['guid'])) {
3312 $uid = $item['uid'] ?? 0;
3314 // first try to fetch the item via the GUID. This will work for all reshares that had been created on this system
3315 $shared_item = Post::selectFirst(['title', 'body'], ['guid' => $shared['guid'], 'uid' => [0, $uid]]);
3316 if (!DBA::isResult($shared_item)) {
3317 if (empty($shared['link'])) {
3321 // Otherwhise try to find (and possibly fetch) the item via the link. This should work for Diaspora and ActivityPub posts
3322 $id = self::fetchByLink($shared['link'] ?? '', $uid);
3324 Logger::info('Original item not found', ['url' => $shared['link'] ?? '', 'callstack' => System::callstack()]);
3328 $shared_item = Post::selectFirst(['title', 'body'], ['id' => $id]);
3329 if (!DBA::isResult($shared_item)) {
3332 Logger::info('Got shared data from url', ['url' => $shared['link'], 'callstack' => System::callstack()]);
3334 Logger::info('Got shared data from guid', ['guid' => $shared['guid'], 'callstack' => System::callstack()]);
3337 if (!empty($shared_item['title'])) {
3338 $body = '[h3]' . $shared_item['title'] . "[/h3]\n" . $shared_item['body'];
3339 unset($shared_item['title']);
3341 $body = $shared_item['body'];
3344 $item['body'] = preg_replace("/\[share ([^\[\]]*)\].*\[\/share\]/ism", '[share $1]' . $body . '[/share]', $item['body']);
3345 unset($shared_item['body']);
3347 return array_merge($item, $shared_item);
3351 * Check a prospective item array against user-level permissions
3353 * @param array $item Expected keys: uri, gravity, and
3354 * author-link if is author-id is set,
3355 * owner-link if is owner-id is set,
3356 * causer-link if is causer-id is set.
3357 * @param int $user_id Local user ID
3359 * @throws \Exception
3361 protected static function isAllowedByUser(array $item, int $user_id)
3363 if (!empty($item['author-id']) && Contact\User::isBlocked($item['author-id'], $user_id)) {
3364 Logger::notice('Author is blocked by user', ['author-link' => $item['author-link'], 'uid' => $user_id, 'item-uri' => $item['uri']]);
3368 if (!empty($item['owner-id']) && Contact\User::isBlocked($item['owner-id'], $user_id)) {
3369 Logger::notice('Owner is blocked by user', ['owner-link' => $item['owner-link'], 'uid' => $user_id, 'item-uri' => $item['uri']]);
3373 // The causer is set during a thread completion, for example because of a reshare. It countains the responsible actor.
3374 if (!empty($item['causer-id']) && Contact\User::isBlocked($item['causer-id'], $user_id)) {
3375 Logger::notice('Causer is blocked by user', ['causer-link' => $item['causer-link'] ?? $item['causer-id'], 'uid' => $user_id, 'item-uri' => $item['uri']]);
3379 if (!empty($item['causer-id']) && ($item['gravity'] === GRAVITY_PARENT) && Contact\User::isIgnored($item['causer-id'], $user_id)) {
3380 Logger::notice('Causer is ignored by user', ['causer-link' => $item['causer-link'] ?? $item['causer-id'], 'uid' => $user_id, 'item-uri' => $item['uri']]);
3388 * Improve the data in shared posts
3390 * @param array $item
3391 * @return string body
3393 public static function improveSharedDataInBody(array $item)
3395 $shared = BBCode::fetchShareAttributes($item['body']);
3396 if (empty($shared['link'])) {
3397 return $item['body'];
3400 $id = self::fetchByLink($shared['link']);
3401 Logger::info('Fetched shared post', ['uri-id' => $item['uri-id'], 'id' => $id, 'author' => $shared['profile'], 'url' => $shared['link'], 'guid' => $shared['guid'], 'callstack' => System::callstack()]);
3403 return $item['body'];
3406 $shared_item = Post::selectFirst(['author-name', 'author-link', 'author-avatar', 'plink', 'created', 'guid', 'title', 'body'], ['id' => $id]);
3407 if (!DBA::isResult($shared_item)) {
3408 return $item['body'];
3411 $shared_content = BBCode::getShareOpeningTag($shared_item['author-name'], $shared_item['author-link'], $shared_item['author-avatar'], $shared_item['plink'], $shared_item['created'], $shared_item['guid']);
3413 if (!empty($shared_item['title'])) {
3414 $shared_content .= '[h3]'.$shared_item['title'].'[/h3]'."\n";
3417 $shared_content .= $shared_item['body'];
3419 $item['body'] = preg_replace("/\[share.*?\](.*)\[\/share\]/ism", $shared_content . '[/share]', $item['body']);
3420 Logger::info('New shared data', ['uri-id' => $item['uri-id'], 'id' => $id, 'shared_item' => $shared_item]);
3421 return $item['body'];