3 * @copyright Copyright (C) 2020, Friendica
5 * @license GNU AGPL version 3 or any later version
7 * This program is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU Affero General Public License as
9 * published by the Free Software Foundation, either version 3 of the
10 * License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU Affero General Public License for more details.
17 * You should have received a copy of the GNU Affero General Public License
18 * along with this program. If not, see <https://www.gnu.org/licenses/>.
22 namespace Friendica\Model;
24 use Friendica\Content\Text\BBCode;
25 use Friendica\Content\Text\HTML;
26 use Friendica\Core\Hook;
27 use Friendica\Core\Logger;
28 use Friendica\Core\Protocol;
29 use Friendica\Core\Renderer;
30 use Friendica\Core\Session;
31 use Friendica\Core\System;
32 use Friendica\Model\Tag;
33 use Friendica\Core\Worker;
34 use Friendica\Database\DBA;
36 use Friendica\Model\Post;
37 use Friendica\Protocol\Activity;
38 use Friendica\Protocol\ActivityPub;
39 use Friendica\Protocol\Diaspora;
40 use Friendica\Util\DateTimeFormat;
41 use Friendica\Util\Map;
42 use Friendica\Util\Network;
43 use Friendica\Util\Strings;
44 use Friendica\Worker\Delivery;
45 use LanguageDetection\Language;
49 // Posting types, inspired by https://www.w3.org/TR/activitystreams-vocabulary/#object-types
56 const PT_DOCUMENT = 19;
63 const PT_FOLLOWER = 69;
64 const PT_ANNOUNCEMENT = 70;
65 const PT_COMMENT = 71;
69 const PT_FETCHED = 75;
70 const PT_PERSONAL_NOTE = 128;
72 // Field list that is used to display the items
73 const DISPLAY_FIELDLIST = [
74 'uid', 'id', 'parent', 'guid', 'network', 'gravity',
75 'uri-id', 'uri', 'thr-parent-id', 'thr-parent', 'parent-uri-id', 'parent-uri',
76 'commented', 'created', 'edited', 'received', 'verb', 'object-type', 'postopts', 'plink',
77 'wall', 'private', 'starred', 'origin', 'parent-origin', 'title', 'body', 'language',
78 'content-warning', 'location', 'coord', 'app', 'rendered-hash', 'rendered-html', 'object',
79 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
80 'author-id', 'author-link', 'author-name', 'author-avatar', 'author-network',
81 'owner-id', 'owner-link', 'owner-name', 'owner-avatar', 'owner-network', 'owner-contact-type',
82 'causer-id', 'causer-link', 'causer-name', 'causer-avatar', 'causer-contact-type', 'causer-network',
83 'contact-id', 'contact-uid', 'contact-link', 'contact-name', 'contact-avatar',
84 'writable', 'self', 'cid', 'alias',
85 'event-created', 'event-edited', 'event-start', 'event-finish',
86 'event-summary', 'event-desc', 'event-location', 'event-type',
87 'event-nofinish', 'event-adjust', 'event-ignore', 'event-id',
88 'delivery_queue_count', 'delivery_queue_done', 'delivery_queue_failed'
91 // Field list that is used to deliver items via the protocols
92 const DELIVER_FIELDLIST = ['uid', 'id', 'parent', 'uri-id', 'uri', 'thr-parent', 'parent-uri', 'guid',
93 'parent-guid', 'received', 'created', 'edited', 'verb', 'object-type', 'object', 'target',
94 'private', 'title', 'body', 'raw-body', 'location', 'coord', 'app',
95 'inform', 'deleted', 'extid', 'post-type', 'gravity',
96 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
97 'author-id', 'author-link', 'owner-id', 'owner-link', 'contact-uid',
98 'signed_text', 'network', 'wall', 'contact-id', 'plink', 'forum_mode', 'origin',
99 'thr-parent-id', 'parent-uri-id', 'postopts', 'pubmail',
100 'event-created', 'event-edited', 'event-start', 'event-finish',
101 'event-summary', 'event-desc', 'event-location', 'event-type',
102 'event-nofinish', 'event-adjust', 'event-ignore', 'event-id'];
104 // All fields in the item table
105 const ITEM_FIELDLIST = ['id', 'uid', 'parent', 'uri', 'parent-uri', 'thr-parent',
106 'guid', 'uri-id', 'parent-uri-id', 'thr-parent-id', 'vid',
107 'contact-id', 'wall', 'gravity', 'extid', 'psid',
108 'created', 'edited', 'commented', 'received', 'changed', 'verb',
109 'postopts', 'plink', 'resource-id', 'event-id', 'inform',
110 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid', 'post-type',
111 'private', 'pubmail', 'visible', 'starred',
112 'unseen', 'deleted', 'origin', 'forum_mode', 'mention', 'global', 'network',
113 'title', 'content-warning', 'body', 'location', 'coord', 'app',
114 'rendered-hash', 'rendered-html', 'object-type', 'object', 'target-type', 'target',
115 'author-id', 'author-link', 'author-name', 'author-avatar', 'author-network',
116 'owner-id', 'owner-link', 'owner-name', 'owner-avatar', 'causer-id'];
118 // Item fields that still are in use
119 const USED_FIELDLIST = ['id', 'parent', 'guid', 'uri', 'uri-id', 'parent-uri', 'parent-uri-id',
120 'thr-parent', 'thr-parent-id', 'created', 'edited', 'commented', 'received', 'changed',
121 'gravity', 'network', 'owner-id', 'author-id', 'causer-id', 'vid', 'extid', 'post-type',
122 'global', 'private', 'visible', 'deleted', 'uid', 'contact-id',
123 'wall', 'origin', 'pubmail', 'starred', 'unseen', 'mention', 'forum_mode', 'psid',
126 // Legacy item fields that aren't stored any more in the item table
127 const LEGACY_FIELDLIST = ['uri-hash', 'iaid', 'icid', 'attach',
128 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid', 'postopts',
129 'resource-id', 'inform', 'file', 'location', 'coord', 'tag', 'plink',
130 'title', 'content-warning', 'body', 'app', 'verb', 'object-type', 'object',
131 'target-type', 'target', 'author-name', 'author-link', 'author-avatar',
132 'owner-name', 'owner-link', 'owner-avatar', 'rendered-hash', 'rendered-html'];
134 // List of all verbs that don't need additional content data.
135 // Never reorder or remove entries from this list. Just add new ones at the end, if needed.
137 Activity::LIKE, Activity::DISLIKE,
138 Activity::ATTEND, Activity::ATTENDNO, Activity::ATTENDMAYBE,
147 * Update existing item entries
149 * @param array $fields The fields that are to be changed
150 * @param array $condition The condition for finding the item entries
152 * In the future we may have to change permissions as well.
153 * Then we had to add the user id as third parameter.
155 * A return value of "0" doesn't mean an error - but that 0 rows had been changed.
157 * @return integer|boolean number of affected rows - or "false" if there was an error
158 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
160 public static function update(array $fields, array $condition)
162 if (empty($condition) || empty($fields)) {
166 if (!empty($fields['verb'])) {
167 $fields['vid'] = Verb::getID($fields['verb']);
170 $rows = Post::update($fields, $condition);
171 if (is_bool($rows)) {
175 // We only need to call the line by line update for specific fields
176 if (empty($fields['body']) && empty($fields['file']) &&
177 empty($fields['attach']) && empty($fields['edited'])) {
181 Logger::info('Updating per single row method', ['fields' => $fields, 'condition' => $condition]);
183 $items = Post::select(['id', 'origin', 'uri-id', 'uid'], $condition);
187 while ($item = DBA::fetch($items)) {
188 if (!empty($fields['body'])) {
189 $content_fields = ['raw-body' => trim($fields['raw-body'] ?? $fields['body'])];
191 // Remove all media attachments from the body and store them in the post-media table
192 $content_fields['raw-body'] = Post\Media::insertFromBody($item['uri-id'], $content_fields['raw-body']);
193 $content_fields['raw-body'] = self::setHashtags($content_fields['raw-body']);
196 if (!empty($fields['file'])) {
197 Post\Category::storeTextByURIId($item['uri-id'], $item['uid'], $fields['file']);
200 if (!empty($fields['attach'])) {
201 Post\Media::insertFromAttachment($item['uri-id'], $fields['attach']);
204 // We only need to notfiy others when it is an original entry from us.
205 // Only call the notifier when the item has some content relevant change.
206 if ($item['origin'] && in_array('edited', array_keys($fields))) {
207 $notify_items[] = $item['id'];
213 foreach ($notify_items as $notify_item) {
214 $post = Post::selectFirst(['uri-id', 'uid'], ['id' => $notify_item]);
215 Worker::add(PRIORITY_HIGH, "Notifier", Delivery::POST, (int)$post['uri-id'], (int)$post['uid']);
222 * Delete an item and notify others about it - if it was ours
224 * @param array $condition The condition for finding the item entries
225 * @param integer $priority Priority for the notification
226 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
228 public static function markForDeletion($condition, $priority = PRIORITY_HIGH)
230 $items = Post::select(['id'], $condition);
231 while ($item = Post::fetch($items)) {
232 self::markForDeletionById($item['id'], $priority);
238 * Delete an item for an user and notify others about it - if it was ours
240 * @param array $condition The condition for finding the item entries
241 * @param integer $uid User who wants to delete this item
242 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
244 public static function deleteForUser($condition, $uid)
250 $items = Post::select(['id', 'uid', 'uri-id'], $condition);
251 while ($item = Post::fetch($items)) {
252 if (in_array($item['uid'], [$uid, 0])) {
253 Post\User::update($item['uri-id'], $uid, ['hidden' => true], true);
254 Post\ThreadUser::update($item['uri-id'], $uid, ['hidden' => true], true);
257 if ($item['uid'] == $uid) {
258 self::markForDeletionById($item['id'], PRIORITY_HIGH);
259 } elseif ($item['uid'] != 0) {
260 Logger::log('Wrong ownership. Not deleting item ' . $item['id']);
267 * Mark an item for deletion, delete related data and notify others about it - if it was ours
269 * @param integer $item_id
270 * @param integer $priority Priority for the notification
272 * @return boolean success
273 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
275 public static function markForDeletionById($item_id, $priority = PRIORITY_HIGH)
277 Logger::info('Mark item for deletion by id', ['id' => $item_id, 'callstack' => System::callstack()]);
278 // locate item to be deleted
279 $fields = ['id', 'uri', 'uri-id', 'uid', 'parent', 'parent-uri-id', 'origin',
280 'deleted', 'resource-id', 'event-id',
281 'verb', 'object-type', 'object', 'target', 'contact-id', 'psid', 'gravity'];
282 $item = Post::selectFirst($fields, ['id' => $item_id]);
283 if (!DBA::isResult($item)) {
284 Logger::info('Item not found.', ['id' => $item_id]);
288 if ($item['deleted']) {
289 Logger::info('Item has already been marked for deletion.', ['id' => $item_id]);
293 $parent = Post::selectFirst(['origin'], ['id' => $item['parent']]);
294 if (!DBA::isResult($parent)) {
295 $parent = ['origin' => false];
298 // clean up categories and tags so they don't end up as orphans
299 Post\Category::deleteByURIId($item['uri-id'], $item['uid']);
302 * If item is a link to a photo resource, nuke all the associated photos
303 * (visitors will not have photo resources)
304 * This only applies to photos uploaded from the photos page. Photos inserted into a post do not
305 * generate a resource-id and therefore aren't intimately linked to the item.
307 /// @TODO: this should first check if photo is used elsewhere
308 if (strlen($item['resource-id'])) {
309 Photo::delete(['resource-id' => $item['resource-id'], 'uid' => $item['uid']]);
312 // If item is a link to an event, delete the event.
313 if (intval($item['event-id'])) {
314 Event::delete($item['event-id']);
317 // If item has attachments, drop them
318 $attachments = Post\Media::getByURIId($item['uri-id'], [Post\Media::DOCUMENT]);
319 foreach($attachments as $attachment) {
320 if (preg_match("|attach/(\d+)|", $attachment['url'], $matches)) {
321 Attach::delete(['id' => $matches[1], 'uid' => $item['uid']]);
325 // Set the item to "deleted"
326 $item_fields = ['deleted' => true, 'edited' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()];
327 Post::update($item_fields, ['id' => $item['id']]);
329 Post\Category::storeTextByURIId($item['uri-id'], $item['uid'], '');
331 if (!Post::exists(["`uri-id` = ? AND `uid` != 0 AND NOT `deleted`", $item['uri-id']])) {
332 self::markForDeletion(['uri-id' => $item['uri-id'], 'uid' => 0, 'deleted' => false], $priority);
335 Post\DeliveryData::delete($item['uri-id']);
337 // When the permission set will be used in photo and events as well,
338 // this query here needs to be extended.
339 // @todo Currently deactivated. We need the permission set in the deletion process.
340 // This is a reminder to add the removal somewhere else.
341 //if (!empty($item['psid']) && !self::exists(['psid' => $item['psid'], 'deleted' => false])) {
342 // DBA::delete('permissionset', ['id' => $item['psid']], ['cascade' => false]);
345 // If it's the parent of a comment thread, kill all the kids
346 if ($item['gravity'] == GRAVITY_PARENT) {
347 self::markForDeletion(['parent' => $item['parent'], 'deleted' => false], $priority);
350 // Is it our comment and/or our thread?
351 if (($item['origin'] || $parent['origin']) && ($item['uid'] != 0)) {
352 // When we delete the original post we will delete all existing copies on the server as well
353 self::markForDeletion(['uri-id' => $item['uri-id'], 'deleted' => false], $priority);
355 // send the notification upstream/downstream
357 Worker::add(['priority' => $priority, 'dont_fork' => true], "Notifier", Delivery::DELETION, (int)$item['uri-id'], (int)$item['uid']);
359 } elseif ($item['uid'] != 0) {
360 Post\User::update($item['uri-id'], $item['uid'], ['hidden' => true]);
361 Post\ThreadUser::update($item['uri-id'], $item['uid'], ['hidden' => true]);
364 Logger::info('Item has been marked for deletion.', ['id' => $item_id]);
369 private static function guid($item, $notify)
371 if (!empty($item['guid'])) {
372 return Strings::escapeTags(trim($item['guid']));
376 // We have to avoid duplicates. So we create the GUID in form of a hash of the plink or uri.
377 // We add the hash of our own host because our host is the original creator of the post.
378 $prefix_host = DI::baseUrl()->getHostname();
382 // We are only storing the post so we create a GUID from the original hostname.
383 if (!empty($item['author-link'])) {
384 $parsed = parse_url($item['author-link']);
385 if (!empty($parsed['host'])) {
386 $prefix_host = $parsed['host'];
390 if (empty($prefix_host) && !empty($item['plink'])) {
391 $parsed = parse_url($item['plink']);
392 if (!empty($parsed['host'])) {
393 $prefix_host = $parsed['host'];
397 if (empty($prefix_host) && !empty($item['uri'])) {
398 $parsed = parse_url($item['uri']);
399 if (!empty($parsed['host'])) {
400 $prefix_host = $parsed['host'];
404 // Is it in the format data@host.tld? - Used for mail contacts
405 if (empty($prefix_host) && !empty($item['author-link']) && strstr($item['author-link'], '@')) {
406 $mailparts = explode('@', $item['author-link']);
407 $prefix_host = array_pop($mailparts);
411 if (!empty($item['plink'])) {
412 $guid = self::guidFromUri($item['plink'], $prefix_host);
413 } elseif (!empty($item['uri'])) {
414 $guid = self::guidFromUri($item['uri'], $prefix_host);
416 $guid = System::createUUID(hash('crc32', $prefix_host));
422 private static function contactId($item)
424 if (!empty($item['contact-id']) && DBA::exists('contact', ['self' => true, 'id' => $item['contact-id']])) {
425 return $item['contact-id'];
426 } elseif (($item['gravity'] == GRAVITY_PARENT) && !empty($item['uid']) && !empty($item['contact-id']) && Contact::isSharing($item['contact-id'], $item['uid'])) {
427 return $item['contact-id'];
428 } elseif (!empty($item['uid']) && !Contact::isSharing($item['author-id'], $item['uid'])) {
429 return $item['author-id'];
430 } elseif (!empty($item['contact-id'])) {
431 return $item['contact-id'];
433 $contact_id = Contact::getIdForURL($item['author-link'], $item['uid']);
434 if (!empty($contact_id)) {
438 return $item['author-id'];
442 * Write an item array into a spool file to be inserted later.
443 * This command is called whenever there are issues storing an item.
445 * @param array $item The item fields that are to be inserted
448 private static function spool($orig_item)
450 // Now we store the data in the spool directory
451 // We use "microtime" to keep the arrival order and "mt_rand" to avoid duplicates
452 $file = 'item-' . round(microtime(true) * 10000) . '-' . mt_rand() . '.msg';
454 $spoolpath = get_spoolpath();
455 if ($spoolpath != "") {
456 $spool = $spoolpath . '/' . $file;
458 file_put_contents($spool, json_encode($orig_item));
459 Logger::warning("Item wasn't stored - Item was spooled into file", ['file' => $file]);
464 * Check if the item array is a duplicate
467 * @return boolean is it a duplicate?
469 private static function isDuplicate(array $item)
471 // Checking if there is already an item with the same guid
472 $condition = ['guid' => $item['guid'], 'network' => $item['network'], 'uid' => $item['uid']];
473 if (Post::exists($condition)) {
474 Logger::notice('Found already existing item', [
475 'guid' => $item['guid'],
476 'uid' => $item['uid'],
477 'network' => $item['network']
482 $condition = ['uri-id' => $item['uri-id'], 'uid' => $item['uid'],
483 'network' => [$item['network'], Protocol::DFRN]];
484 if (Post::exists($condition)) {
485 Logger::notice('duplicated item with the same uri found.', $item);
489 // On Friendica and Diaspora the GUID is unique
490 if (in_array($item['network'], [Protocol::DFRN, Protocol::DIASPORA])) {
491 $condition = ['guid' => $item['guid'], 'uid' => $item['uid']];
492 if (Post::exists($condition)) {
493 Logger::notice('duplicated item with the same guid found.', $item);
496 } elseif ($item['network'] == Protocol::OSTATUS) {
497 // Check for an existing post with the same content. There seems to be a problem with OStatus.
498 $condition = ["`body` = ? AND `network` = ? AND `created` = ? AND `contact-id` = ? AND `uid` = ?",
499 $item['body'], $item['network'], $item['created'], $item['contact-id'], $item['uid']];
500 if (Post::exists($condition)) {
501 Logger::notice('duplicated item with the same body found.', $item);
507 * Check for already added items.
508 * There is a timing issue here that sometimes creates double postings.
509 * An unique index would help - but the limitations of MySQL (maximum size of index values) prevent this.
511 if (($item['uid'] == 0) && Post::exists(['uri-id' => $item['uri-id'], 'uid' => 0])) {
512 Logger::notice('Global item already stored.', ['uri-id' => $item['uri-id'], 'network' => $item['network']]);
520 * Check if the item array is valid
523 * @return boolean item is valid
525 public static function isValid(array $item)
527 // When there is no content then we don't post it
528 if ($item['body'] . $item['title'] == '') {
529 Logger::notice('No body, no title.');
533 if (!empty($item['uid'])) {
534 $owner = User::getOwnerDataById($item['uid'], false);
536 Logger::notice('Missing item user owner data', ['uid' => $item['uid']]);
540 if ($owner['account_expired'] || $owner['account_removed']) {
541 Logger::notice('Item user has been deleted/expired/removed', ['uid' => $item['uid'], 'deleted' => $owner['deleted'], 'account_expired' => $owner['account_expired'], 'account_removed' => $owner['account_removed']]);
546 if (!empty($item['author-id']) && Contact::isBlocked($item['author-id'])) {
547 Logger::notice('Author is blocked node-wide', ['author-link' => $item['author-link'], 'item-uri' => $item['uri']]);
551 if (!empty($item['author-link']) && Network::isUrlBlocked($item['author-link'])) {
552 Logger::notice('Author server is blocked', ['author-link' => $item['author-link'], 'item-uri' => $item['uri']]);
556 if (!empty($item['owner-id']) && Contact::isBlocked($item['owner-id'])) {
557 Logger::notice('Owner is blocked node-wide', ['owner-link' => $item['owner-link'], 'item-uri' => $item['uri']]);
561 if (!empty($item['owner-link']) && Network::isUrlBlocked($item['owner-link'])) {
562 Logger::notice('Owner server is blocked', ['owner-link' => $item['owner-link'], 'item-uri' => $item['uri']]);
566 if (!empty($item['uid']) && !self::isAllowedByUser($item, $item['uid'])) {
570 if ($item['verb'] == Activity::FOLLOW) {
571 if (!$item['origin'] && ($item['author-id'] == Contact::getPublicIdByUserId($item['uid']))) {
572 // Our own follow request can be relayed to us. We don't store it to avoid notification chaos.
573 Logger::info("Follow: Don't store not origin follow request", ['parent-uri' => $item['parent-uri']]);
577 $condition = ['verb' => Activity::FOLLOW, 'uid' => $item['uid'],
578 'parent-uri' => $item['parent-uri'], 'author-id' => $item['author-id']];
579 if (Post::exists($condition)) {
580 // It happens that we receive multiple follow requests by the same author - we only store one.
581 Logger::info('Follow: Found existing follow request from author', ['author-id' => $item['author-id'], 'parent-uri' => $item['parent-uri']]);
590 * Check if the item array is too old
593 * @return boolean item is too old
595 public static function isTooOld(array $item)
597 // check for create date and expire time
598 $expire_interval = DI::config()->get('system', 'dbclean-expire-days', 0);
600 $user = DBA::selectFirst('user', ['expire'], ['uid' => $item['uid']]);
601 if (DBA::isResult($user) && ($user['expire'] > 0) && (($user['expire'] < $expire_interval) || ($expire_interval == 0))) {
602 $expire_interval = $user['expire'];
605 if (($expire_interval > 0) && !empty($item['created'])) {
606 $expire_date = time() - ($expire_interval * 86400);
607 $created_date = strtotime($item['created']);
608 if ($created_date < $expire_date) {
609 Logger::notice('Item created before expiration interval.', [
610 'created' => date('c', $created_date),
611 'expired' => date('c', $expire_date),
622 * Return the id of the given item array if it has been stored before
625 * @return integer item id
627 private static function getDuplicateID(array $item)
629 if (empty($item['network']) || in_array($item['network'], Protocol::FEDERATED)) {
630 $condition = ["`uri-id` = ? AND `uid` = ? AND `network` IN (?, ?, ?, ?)",
631 $item['uri-id'], $item['uid'],
632 Protocol::ACTIVITYPUB, Protocol::DIASPORA, Protocol::DFRN, Protocol::OSTATUS];
633 $existing = Post::selectFirst(['id', 'network'], $condition);
634 if (DBA::isResult($existing)) {
635 // We only log the entries with a different user id than 0. Otherwise we would have too many false positives
636 if ($item['uid'] != 0) {
637 Logger::notice('Item already existed for user', [
638 'uri-id' => $item['uri-id'],
639 'uid' => $item['uid'],
640 'network' => $item['network'],
641 'existing_id' => $existing["id"],
642 'existing_network' => $existing["network"]
646 return $existing["id"];
653 * Fetch top-level parent data for the given item array
656 * @return array item array with parent data
659 private static function getTopLevelParent(array $item)
661 $fields = ['uid', 'uri', 'parent-uri', 'id', 'deleted',
662 'uri-id', 'parent-uri-id',
663 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
664 'wall', 'private', 'forum_mode', 'origin', 'author-id'];
665 $condition = ['uri-id' => $item['thr-parent-id'], 'uid' => $item['uid']];
666 $params = ['order' => ['id' => false]];
667 $parent = Post::selectFirst($fields, $condition, $params);
669 if (!DBA::isResult($parent)) {
670 Logger::notice('item parent was not found - ignoring item', ['thr-parent-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
674 if ($parent['uri-id'] == $parent['parent-uri-id']) {
678 $condition = ['uri-id' => $parent['parent-uri-id'],
679 'parent-uri-id' => $parent['parent-uri-id'],
680 'uid' => $parent['uid']];
681 $params = ['order' => ['id' => false]];
682 $toplevel_parent = Post::selectFirst($fields, $condition, $params);
683 if (!DBA::isResult($toplevel_parent)) {
684 Logger::notice('item top level parent was not found - ignoring item', ['parent-uri-id' => $parent['parent-uri-id'], 'uid' => $parent['uid']]);
688 return $toplevel_parent;
692 * Get the gravity for the given item array
695 * @return integer gravity
697 private static function getGravity(array $item)
699 $activity = DI::activity();
701 if (isset($item['gravity'])) {
702 return intval($item['gravity']);
703 } elseif ($item['parent-uri-id'] === $item['uri-id']) {
704 return GRAVITY_PARENT;
705 } elseif ($activity->match($item['verb'], Activity::POST)) {
706 return GRAVITY_COMMENT;
707 } elseif ($activity->match($item['verb'], Activity::FOLLOW)) {
708 return GRAVITY_ACTIVITY;
709 } elseif ($activity->match($item['verb'], Activity::ANNOUNCE)) {
710 return GRAVITY_ACTIVITY;
712 Logger::info('Unknown gravity for verb', ['verb' => $item['verb']]);
713 return GRAVITY_UNKNOWN; // Should not happen
716 public static function insert($item, $notify = false, $dontcache = false)
720 $priority = PRIORITY_HIGH;
722 // If it is a posting where users should get notifications, then define it as wall posting
726 $item['network'] = Protocol::DFRN;
727 $item['protocol'] = Conversation::PARCEL_DIRECT;
728 $item['direction'] = Conversation::PUSH;
730 if (in_array($notify, PRIORITIES)) {
734 $item['network'] = trim(($item['network'] ?? '') ?: Protocol::PHANTOM);
737 $uid = intval($item['uid']);
739 $item['guid'] = self::guid($item, $notify);
740 $item['uri'] = substr(trim($item['uri'] ?? '') ?: self::newURI($item['uid'], $item['guid']), 0, 255);
743 $item['uri-id'] = ItemURI::insert(['uri' => $item['uri'], 'guid' => $item['guid']]);
745 // Backward compatibility: parent-uri used to be the direct parent uri.
746 // If it is provided without a thr-parent, it probably is the old behavior.
747 $item['thr-parent'] = trim($item['thr-parent'] ?? $item['parent-uri'] ?? $item['uri']);
748 $item['parent-uri'] = $item['thr-parent'];
750 $item['thr-parent-id'] = $item['parent-uri-id'] = ItemURI::getIdByURI($item['thr-parent']);
752 // Store conversation data
753 $item = Conversation::insert($item);
756 * Do we already have this item?
757 * We have to check several networks since Friendica posts could be repeated
758 * via OStatus (maybe Diasporsa as well)
760 $duplicate = self::getDuplicateID($item);
765 // Additional duplicate checks
766 /// @todo Check why the first duplication check returns the item number and the second a 0
767 if (self::isDuplicate($item)) {
771 $item['wall'] = intval($item['wall'] ?? 0);
772 $item['extid'] = trim($item['extid'] ?? '');
773 $item['author-name'] = trim($item['author-name'] ?? '');
774 $item['author-link'] = trim($item['author-link'] ?? '');
775 $item['author-avatar'] = trim($item['author-avatar'] ?? '');
776 $item['owner-name'] = trim($item['owner-name'] ?? '');
777 $item['owner-link'] = trim($item['owner-link'] ?? '');
778 $item['owner-avatar'] = trim($item['owner-avatar'] ?? '');
779 $item['received'] = (isset($item['received']) ? DateTimeFormat::utc($item['received']) : DateTimeFormat::utcNow());
780 $item['created'] = (isset($item['created']) ? DateTimeFormat::utc($item['created']) : $item['received']);
781 $item['edited'] = (isset($item['edited']) ? DateTimeFormat::utc($item['edited']) : $item['created']);
782 $item['changed'] = (isset($item['changed']) ? DateTimeFormat::utc($item['changed']) : $item['created']);
783 $item['commented'] = (isset($item['commented']) ? DateTimeFormat::utc($item['commented']) : $item['created']);
784 $item['title'] = substr(trim($item['title'] ?? ''), 0, 255);
785 $item['location'] = trim($item['location'] ?? '');
786 $item['coord'] = trim($item['coord'] ?? '');
787 $item['visible'] = (isset($item['visible']) ? intval($item['visible']) : 1);
788 $item['deleted'] = 0;
789 $item['post-type'] = ($item['post-type'] ?? '') ?: self::PT_ARTICLE;
790 $item['verb'] = trim($item['verb'] ?? '');
791 $item['object-type'] = trim($item['object-type'] ?? '');
792 $item['object'] = trim($item['object'] ?? '');
793 $item['target-type'] = trim($item['target-type'] ?? '');
794 $item['target'] = trim($item['target'] ?? '');
795 $item['plink'] = substr(trim($item['plink'] ?? ''), 0, 255);
796 $item['allow_cid'] = trim($item['allow_cid'] ?? '');
797 $item['allow_gid'] = trim($item['allow_gid'] ?? '');
798 $item['deny_cid'] = trim($item['deny_cid'] ?? '');
799 $item['deny_gid'] = trim($item['deny_gid'] ?? '');
800 $item['private'] = intval($item['private'] ?? self::PUBLIC);
801 $item['body'] = trim($item['body'] ?? '');
802 $item['raw-body'] = trim($item['raw-body'] ?? $item['body']);
803 $item['app'] = trim($item['app'] ?? '');
804 $item['origin'] = intval($item['origin'] ?? 0);
805 $item['postopts'] = trim($item['postopts'] ?? '');
806 $item['resource-id'] = trim($item['resource-id'] ?? '');
807 $item['event-id'] = intval($item['event-id'] ?? 0);
808 $item['inform'] = trim($item['inform'] ?? '');
809 $item['file'] = trim($item['file'] ?? '');
811 // Items cannot be stored before they happen ...
812 if ($item['created'] > DateTimeFormat::utcNow()) {
813 $item['created'] = DateTimeFormat::utcNow();
816 // We haven't invented time travel by now.
817 if ($item['edited'] > DateTimeFormat::utcNow()) {
818 $item['edited'] = DateTimeFormat::utcNow();
821 $item['plink'] = ($item['plink'] ?? '') ?: DI::baseUrl() . '/display/' . urlencode($item['guid']);
823 $item['gravity'] = self::getGravity($item);
825 $item['language'] = self::getLanguage($item);
827 $default = ['url' => $item['author-link'], 'name' => $item['author-name'],
828 'photo' => $item['author-avatar'], 'network' => $item['network']];
829 $item['author-id'] = ($item['author-id'] ?? 0) ?: Contact::getIdForURL($item['author-link'], 0, null, $default);
831 $default = ['url' => $item['owner-link'], 'name' => $item['owner-name'],
832 'photo' => $item['owner-avatar'], 'network' => $item['network']];
833 $item['owner-id'] = ($item['owner-id'] ?? 0) ?: Contact::getIdForURL($item['owner-link'], 0, null, $default);
835 $actor = ($item['gravity'] == GRAVITY_PARENT) ? $item['owner-id'] : $item['author-id'];
836 if (!$item['origin'] && ($item['uid'] != 0) && Contact::isSharing($actor, $item['uid'])) {
837 $item['post-type'] = self::PT_FOLLOWER;
840 // Ensure that there is an avatar cache
841 Contact::checkAvatarCache($item['author-id']);
842 Contact::checkAvatarCache($item['owner-id']);
844 // The contact-id should be set before "self::insert" was called - but there seems to be issues sometimes
845 $item["contact-id"] = self::contactId($item);
847 if (!empty($item['direction']) && in_array($item['direction'], [Conversation::PUSH, Conversation::RELAY]) &&
848 self::isTooOld($item)) {
849 Logger::info('Item is too old', ['item' => $item]);
853 if (!self::isValid($item)) {
857 if ($item['gravity'] !== GRAVITY_PARENT) {
858 $toplevel_parent = self::getTopLevelParent($item);
859 if (empty($toplevel_parent)) {
863 // If the thread originated from this node, we check the permission against the thread starter
864 $condition = ['uri-id' => $toplevel_parent['uri-id'], 'wall' => true];
865 $localTopLevelParent = Post::selectFirst(['uid'], $condition);
866 if (!empty($localTopLevelParent['uid']) && !self::isAllowedByUser($item, $localTopLevelParent['uid'])) {
870 $parent_id = $toplevel_parent['id'];
871 $item['parent-uri'] = $toplevel_parent['uri'];
872 $item['parent-uri-id'] = $toplevel_parent['uri-id'];
873 $item['deleted'] = $toplevel_parent['deleted'];
874 $item['allow_cid'] = $toplevel_parent['allow_cid'];
875 $item['allow_gid'] = $toplevel_parent['allow_gid'];
876 $item['deny_cid'] = $toplevel_parent['deny_cid'];
877 $item['deny_gid'] = $toplevel_parent['deny_gid'];
878 $parent_origin = $toplevel_parent['origin'];
880 // Don't federate received participation messages
881 if ($item['verb'] != Activity::FOLLOW) {
882 $item['wall'] = $toplevel_parent['wall'];
884 $item['wall'] = false;
888 * If the parent is private, force privacy for the entire conversation
889 * This differs from the above settings as it subtly allows comments from
890 * email correspondents to be private even if the overall thread is not.
892 if ($toplevel_parent['private']) {
893 $item['private'] = $toplevel_parent['private'];
897 * Edge case. We host a public forum that was originally posted to privately.
898 * The original author commented, but as this is a comment, the permissions
899 * weren't fixed up so it will still show the comment as private unless we fix it here.
901 if ((intval($toplevel_parent['forum_mode']) == 1) && ($toplevel_parent['private'] != self::PUBLIC)) {
902 $item['private'] = self::PUBLIC;
905 // If its a post that originated here then tag the thread as "mention"
906 if ($item['origin'] && $item['uid']) {
907 DBA::update('post-thread-user', ['mention' => true], ['uri-id' => $item['parent-uri-id'], 'uid' => $item['uid']]);
908 Logger::info('tagged thread as mention', ['parent' => $parent_id, 'parent-uri-id' => $item['parent-uri-id'], 'uid' => $item['uid']]);
911 // Update the contact relations
912 Contact\Relation::store($toplevel_parent['author-id'], $item['author-id'], $item['created']);
915 $parent_origin = $item['origin'];
918 $item['parent-uri-id'] = ItemURI::getIdByURI($item['parent-uri']);
919 $item['thr-parent-id'] = ItemURI::getIdByURI($item['thr-parent']);
921 // Is this item available in the global items (with uid=0)?
922 if ($item["uid"] == 0) {
923 $item["global"] = true;
925 // Set the global flag on all items if this was a global item entry
926 Post::update(['global' => true], ['uri-id' => $item['uri-id']]);
928 $item['global'] = Post::exists(['uid' => 0, 'uri-id' => $item['uri-id']]);
932 if (!empty($item["allow_cid"] . $item["allow_gid"] . $item["deny_cid"] . $item["deny_gid"])) {
933 $item["private"] = self::PRIVATE;
937 $item['edit'] = false;
938 $item['parent'] = $parent_id;
939 Hook::callAll('post_local', $item);
941 Hook::callAll('post_remote', $item);
944 if (!empty($item['cancel'])) {
945 Logger::log('post cancelled by addon.');
949 if (empty($item['vid']) && !empty($item['verb'])) {
950 $item['vid'] = Verb::getID($item['verb']);
953 // Creates or assigns the permission set
954 $item['psid'] = PermissionSet::getIdFromACL(
962 if (!empty($item['extid'])) {
963 $item['external-id'] = ItemURI::getIdByURI($item['extid']);
966 if ($item['verb'] == Activity::ANNOUNCE) {
967 self::setOwnerforResharedItem($item);
970 // Remove all media attachments from the body and store them in the post-media table
971 $item['raw-body'] = Post\Media::insertFromBody($item['uri-id'], $item['raw-body']);
972 $item['raw-body'] = self::setHashtags($item['raw-body']);
974 // Check for hashtags in the body and repair or add hashtag links
975 $item['body'] = self::setHashtags($item['body']);
977 // Fill the cache field
978 self::putInCache($item);
980 if (stristr($item['verb'], Activity::POKE)) {
981 $notify_type = Delivery::POKE;
983 $notify_type = Delivery::POST;
986 // Filling item related side tables
987 if (!empty($item['attach'])) {
988 Post\Media::insertFromAttachment($item['uri-id'], $item['attach']);
991 if (empty($item['event-id'])) {
992 unset($item['event-id']);
995 Post::insert($item['uri-id'], $item);
997 if ($item['gravity'] == GRAVITY_PARENT) {
998 Post\Thread::insert($item['uri-id'], $item);
1001 if (!in_array($item['verb'], self::ACTIVITIES)) {
1002 Post\Content::insert($item['uri-id'], $item);
1005 // Diaspora signature
1006 if (!empty($item['diaspora_signed_text'])) {
1007 DBA::replace('diaspora-interaction', ['uri-id' => $item['uri-id'], 'interaction' => $item['diaspora_signed_text']]);
1010 // Attached file links
1011 if (!empty($item['file'])) {
1012 Post\Category::storeTextByURIId($item['uri-id'], $item['uid'], $item['file']);
1015 // Delivery relevant data
1016 $delivery_data = Post\DeliveryData::extractFields($item);
1018 if (!empty($item['origin']) || !empty($item['wall']) || !empty($delivery_data['postopts']) || !empty($delivery_data['inform'])) {
1019 Post\DeliveryData::insert($item['uri-id'], $delivery_data);
1022 // Store tags from the body if this hadn't been handled previously in the protocol classes
1023 if (!Tag::existsForPost($item['uri-id'])) {
1024 Tag::storeFromBody($item['uri-id'], $item['body']);
1027 $condition = ['uri-id' => $item['uri-id'], 'uid' => $item['uid']];
1028 if (Post::exists($condition)) {
1029 Logger::notice('Item is already inserted - aborting', $condition);
1033 $post_user_id = Post\User::insert($item['uri-id'], $item['uid'], $item);
1034 if (!$post_user_id) {
1035 Logger::notice('Post-User is already inserted - aborting', ['uid' => $item['uid'], 'uri-id' => $item['uri-id']]);
1039 if ($item['gravity'] == GRAVITY_PARENT) {
1040 $item['post-user-id'] = $post_user_id;
1041 Post\ThreadUser::insert($item['uri-id'], $item['uid'], $item);
1044 Logger::notice('created item', ['post-id' => $post_user_id, 'uid' => $item['uid'], 'network' => $item['network'], 'uri-id' => $item['uri-id'], 'guid' => $item['guid']]);
1046 $posted_item = Post::selectFirst(self::ITEM_FIELDLIST, ['post-user-id' => $post_user_id]);
1047 if (!DBA::isResult($posted_item)) {
1048 // On failure store the data into a spool file so that the "SpoolPost" worker can try again later.
1049 Logger::warning('Could not store item. it will be spooled', ['id' => $post_user_id]);
1050 self::spool($orig_item);
1054 // update the commented timestamp on the parent
1055 if (DI::config()->get('system', 'like_no_comment')) {
1056 // Update when it is a comment
1057 $update_commented = in_array($posted_item['gravity'], [GRAVITY_PARENT, GRAVITY_COMMENT]);
1059 // Update when it isn't a follow or tag verb
1060 $update_commented = !in_array($posted_item['verb'], [Activity::FOLLOW, Activity::TAG]);
1063 if ($update_commented) {
1064 $fields = ['commented' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()];
1066 $fields = ['changed' => DateTimeFormat::utcNow()];
1069 Post::update($fields, ['uri-id' => $posted_item['parent-uri-id'], 'uid' => $posted_item['uid']]);
1071 // In that function we check if this is a forum post. Additionally we delete the item under certain circumstances
1072 if (self::tagDeliver($posted_item['uid'], $post_user_id)) {
1073 // Get the user information for the logging
1074 $user = User::getById($uid);
1076 Logger::notice('Item had been deleted', ['id' => $post_user_id, 'user' => $uid, 'account-type' => $user['account-type']]);
1082 Hook::callAll('post_local_end', $posted_item);
1084 Hook::callAll('post_remote_end', $posted_item);
1088 if ($posted_item['gravity'] === GRAVITY_PARENT) {
1089 self::addShadow($post_user_id);
1091 self::addShadowPost($post_user_id);
1094 self::updateContact($posted_item);
1096 Post\UserNotification::setNotification($posted_item['uri-id'], $posted_item['uid']);
1098 check_user_notification($posted_item['uri-id'], $posted_item['uid']);
1100 // Distribute items to users who subscribed to their tags
1101 self::distributeByTags($posted_item);
1103 // Automatically reshare the item if the "remote_self" option is selected
1104 self::autoReshare($posted_item);
1106 $transmit = $notify || ($posted_item['visible'] && ($parent_origin || $posted_item['origin']));
1109 // Don't relay participation messages
1110 if (($posted_item['verb'] == Activity::FOLLOW) &&
1111 (!$posted_item['origin'] || ($posted_item['author-id'] != Contact::getPublicIdByUserId($uid)))) {
1112 Logger::info('Participation messages will not be relayed', ['item' => $posted_item['id'], 'uri' => $posted_item['uri'], 'verb' => $posted_item['verb']]);
1118 Worker::add(['priority' => $priority, 'dont_fork' => true], 'Notifier', $notify_type, (int)$posted_item['uri-id'], (int)$posted_item['uid']);
1121 return $post_user_id;
1125 * Change the owner of a parent item if it had been shared by a forum
1127 * (public) forum posts in the new format consist of the regular post by the author
1128 * followed by an announce message sent from the forum account.
1129 * Changing the owner helps in grouping forum posts.
1131 * @param array $item
1134 private static function setOwnerforResharedItem(array $item)
1136 $parent = Post::selectFirst(['id', 'causer-id', 'owner-id', 'author-id', 'author-link', 'origin', 'post-type'],
1137 ['uri-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
1138 if (!DBA::isResult($parent)) {
1139 Logger::error('Parent not found', ['uri-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
1143 $author = Contact::selectFirst(['url', 'contact-type', 'network'], ['id' => $item['author-id']]);
1144 if (!DBA::isResult($author)) {
1145 Logger::error('Author not found', ['id' => $item['author-id']]);
1149 $cid = Contact::getIdForURL($author['url'], $item['uid']);
1150 if (empty($cid) || !Contact::isSharing($cid, $item['uid'])) {
1151 Logger::info('The resharer is not a following contact: quit', ['resharer' => $author['url'], 'uid' => $item['uid'], 'cid' => $cid]);
1155 if ($author['contact-type'] != Contact::TYPE_COMMUNITY) {
1156 if ($parent['post-type'] == self::PT_ANNOUNCEMENT) {
1157 Logger::info('The parent is already marked as announced: quit', ['causer' => $parent['causer-id'], 'owner' => $parent['owner-id'], 'author' => $parent['author-id'], 'uid' => $item['uid']]);
1161 if (Contact::isSharing($parent['owner-id'], $item['uid'])) {
1162 Logger::info('The resharer is no forum: quit', ['resharer' => $item['author-id'], 'owner' => $parent['owner-id'], 'author' => $parent['author-id'], 'uid' => $item['uid']]);
1165 self::update(['post-type' => self::PT_ANNOUNCEMENT, 'causer-id' => $item['author-id']], ['id' => $parent['id']]);
1166 Logger::info('Set announcement post-type', ['uri-id' => $item['uri-id'], 'thr-parent-id' => $item['thr-parent-id'], 'uid' => $item['uid']]);
1170 self::update(['owner-id' => $item['author-id'], 'contact-id' => $cid], ['id' => $parent['id']]);
1171 Logger::info('Change owner of the parent', ['uri-id' => $item['uri-id'], 'thr-parent-id' => $item['thr-parent-id'], 'uid' => $item['uid'], 'owner-id' => $item['author-id'], 'contact-id' => $cid]);
1175 * Distribute the given item to users who subscribed to their tags
1177 * @param array $item Processed item
1179 private static function distributeByTags(array $item)
1181 if (($item['uid'] != 0) || ($item['gravity'] != GRAVITY_PARENT) || !in_array($item['network'], Protocol::FEDERATED)) {
1185 $uids = Tag::getUIDListByURIId($item['uri-id']);
1186 foreach ($uids as $uid) {
1187 if (Contact::isSharing($item['author-id'], $uid)) {
1190 $fields = ['post-type' => self::PT_TAG];
1193 $stored = self::storeForUserByUriId($item['uri-id'], $uid, $fields);
1194 Logger::info('Stored item for users', ['uri-id' => $item['uri-id'], 'uid' => $uid, 'fields' => $fields, 'stored' => $stored]);
1199 * Distributes public items to the receivers
1201 * @param integer $itemid Item ID that should be added
1202 * @param string $signed_text Original text (for Diaspora signatures), JSON encoded.
1203 * @throws \Exception
1205 public static function distribute($itemid, $signed_text = '')
1207 $condition = ["`id` IN (SELECT `parent` FROM `post-view` WHERE `id` = ?)", $itemid];
1208 $parent = Post::selectFirst(['owner-id'], $condition);
1209 if (!DBA::isResult($parent)) {
1210 Logger::warning('Item not found', ['condition' => $condition]);
1214 // Only distribute public items from native networks
1215 $condition = ['id' => $itemid, 'uid' => 0,
1216 'network' => array_merge(Protocol::FEDERATED ,['']),
1217 'visible' => true, 'deleted' => false, 'private' => [self::PUBLIC, self::UNLISTED]];
1218 $item = Post::selectFirst(self::ITEM_FIELDLIST, $condition);
1219 if (!DBA::isResult($item)) {
1220 Logger::warning('Item not found', ['condition' => $condition]);
1224 $origin = $item['origin'];
1228 /// @todo add a field "pcid" in the contact table that referrs to the public contact id.
1229 $owner = DBA::selectFirst('contact', ['url', 'nurl', 'alias'], ['id' => $parent['owner-id']]);
1230 if (!DBA::isResult($owner)) {
1234 $condition = ['nurl' => $owner['nurl'], 'rel' => [Contact::SHARING, Contact::FRIEND]];
1235 $contacts = DBA::select('contact', ['uid'], $condition);
1236 while ($contact = DBA::fetch($contacts)) {
1237 if ($contact['uid'] == 0) {
1241 $users[$contact['uid']] = $contact['uid'];
1243 DBA::close($contacts);
1245 $condition = ['alias' => $owner['url'], 'rel' => [Contact::SHARING, Contact::FRIEND]];
1246 $contacts = DBA::select('contact', ['uid'], $condition);
1247 while ($contact = DBA::fetch($contacts)) {
1248 if ($contact['uid'] == 0) {
1252 $users[$contact['uid']] = $contact['uid'];
1254 DBA::close($contacts);
1256 if (!empty($owner['alias'])) {
1257 $condition = ['nurl' => Strings::normaliseLink($owner['alias']), 'rel' => [Contact::SHARING, Contact::FRIEND]];
1258 $contacts = DBA::select('contact', ['uid'], $condition);
1259 while ($contact = DBA::fetch($contacts)) {
1260 if ($contact['uid'] == 0) {
1264 $users[$contact['uid']] = $contact['uid'];
1266 DBA::close($contacts);
1271 if ($item['uri-id'] != $item['parent-uri-id']) {
1272 $parents = Post::select(['uid', 'origin'], ["`uri-id` = ? AND `uid` != 0", $item['parent-uri-id']]);
1273 while ($parent = Post::fetch($parents)) {
1274 $users[$parent['uid']] = $parent['uid'];
1275 if ($parent['origin'] && !$origin) {
1276 $origin_uid = $parent['uid'];
1279 DBA::close($parents);
1282 foreach ($users as $uid) {
1283 if ($origin_uid == $uid) {
1284 $item['diaspora_signed_text'] = $signed_text;
1286 self::storeForUser($item, $uid);
1291 * Store a public item defined by their URI-ID for the given users
1293 * @param integer $uri_id URI-ID of the given item
1294 * @param integer $uid The user that will receive the item entry
1295 * @param array $fields Additional fields to be stored
1296 * @return integer stored item id
1298 public static function storeForUserByUriId(int $uri_id, int $uid, array $fields = [])
1300 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['uri-id' => $uri_id, 'uid' => 0]);
1301 if (!DBA::isResult($item)) {
1305 if (($item['private'] == self::PRIVATE) || !in_array($item['network'], Protocol::FEDERATED)) {
1306 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']]);
1310 $item['post-type'] = self::PT_STORED;
1312 $item = array_merge($item, $fields);
1314 $stored = self::storeForUser($item, $uid);
1315 Logger::info('Public item stored for user', ['uri-id' => $item['uri-id'], 'uid' => $uid, 'stored' => $stored]);
1320 * Store a public item array for the given users
1322 * @param array $item The item entry that will be stored
1323 * @param integer $uid The user that will receive the item entry
1324 * @return integer stored item id
1325 * @throws \Exception
1327 private static function storeForUser(array $item, int $uid)
1329 if (Post::exists(['uri-id' => $item['uri-id'], 'uid' => $uid])) {
1330 Logger::info('Item already exists', ['uri-id' => $item['uri-id'], 'uid' => $uid]);
1335 unset($item['parent']);
1336 unset($item['mention']);
1337 unset($item['starred']);
1338 unset($item['unseen']);
1339 unset($item['psid']);
1341 $item['uid'] = $uid;
1342 $item['origin'] = 0;
1345 if ($item['gravity'] == GRAVITY_PARENT) {
1346 $contact = Contact::getByURLForUser($item['owner-link'], $uid, false, ['id']);
1348 $contact = Contact::getByURLForUser($item['author-link'], $uid, false, ['id']);
1351 if (!empty($contact['id'])) {
1352 $item['contact-id'] = $contact['id'];
1354 // Shouldn't happen at all
1355 Logger::warning('contact-id could not be fetched', ['uid' => $uid, 'item' => $item]);
1356 $self = DBA::selectFirst('contact', ['id'], ['self' => true, 'uid' => $uid]);
1357 if (!DBA::isResult($self)) {
1358 // Shouldn't happen even less
1359 Logger::warning('self contact could not be fetched', ['uid' => $uid, 'item' => $item]);
1362 $item['contact-id'] = $self['id'];
1365 /// @todo Handling of "event-id"
1368 if ($item['gravity'] == GRAVITY_PARENT) {
1369 $contact = DBA::selectFirst('contact', [], ['id' => $item['contact-id'], 'self' => false]);
1370 if (DBA::isResult($contact)) {
1371 $notify = self::isRemoteSelf($contact, $item);
1375 $distributed = self::insert($item, $notify, true);
1377 if (!$distributed) {
1378 Logger::info("Distributed public item wasn't stored", ['uri-id' => $item['uri-id'], 'user' => $uid]);
1380 Logger::info('Distributed public item was stored', ['uri-id' => $item['uri-id'], 'user' => $uid, 'stored' => $distributed]);
1382 return $distributed;
1386 * Add a shadow entry for a given item id that is a thread starter
1388 * We store every public item entry additionally with the user id "0".
1389 * This is used for the community page and for the search.
1390 * It is planned that in the future we will store public item entries only once.
1392 * @param integer $itemid Item ID that should be added
1393 * @throws \Exception
1395 private static function addShadow($itemid)
1397 $fields = ['uid', 'private', 'visible', 'deleted', 'network', 'uri-id'];
1398 $condition = ['id' => $itemid, 'gravity' => GRAVITY_PARENT];
1399 $item = Post::selectFirst($fields, $condition);
1401 if (!DBA::isResult($item)) {
1405 // is it already a copy?
1406 if (($itemid == 0) || ($item['uid'] == 0)) {
1410 // Is it a visible public post?
1411 if (!$item["visible"] || $item["deleted"] || ($item["private"] == self::PRIVATE)) {
1415 // is it an entry from a connector? Only add an entry for natively connected networks
1416 if (!in_array($item["network"], array_merge(Protocol::FEDERATED ,['']))) {
1420 if (Post::exists(['uri-id' => $item['uri-id'], 'uid' => 0])) {
1424 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $itemid]);
1426 if (DBA::isResult($item)) {
1427 // Preparing public shadow (removing user specific data)
1430 unset($item['parent']);
1431 unset($item['wall']);
1432 unset($item['mention']);
1433 unset($item['origin']);
1434 unset($item['starred']);
1435 unset($item['postopts']);
1436 unset($item['inform']);
1437 unset($item['post-type']);
1438 if ($item['uri-id'] == $item['parent-uri-id']) {
1439 $item['contact-id'] = $item['owner-id'];
1441 $item['contact-id'] = $item['author-id'];
1444 $public_shadow = self::insert($item, false, true);
1446 Logger::info('Stored public shadow', ['thread' => $itemid, 'id' => $public_shadow]);
1451 * Add a shadow entry for a given item id that is a comment
1453 * This function does the same like the function above - but for comments
1455 * @param integer $itemid Item ID that should be added
1456 * @throws \Exception
1458 private static function addShadowPost($itemid)
1460 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $itemid]);
1461 if (!DBA::isResult($item)) {
1465 // Is it a toplevel post?
1466 if ($item['gravity'] == GRAVITY_PARENT) {
1467 self::addShadow($itemid);
1471 // Is this a shadow entry?
1472 if ($item['uid'] == 0) {
1476 // Is there a shadow parent?
1477 if (!Post::exists(['uri-id' => $item['parent-uri-id'], 'uid' => 0])) {
1481 // Is there already a shadow entry?
1482 if (Post::exists(['uri-id' => $item['uri-id'], 'uid' => 0])) {
1486 // Save "origin" and "parent" state
1487 $origin = $item['origin'];
1488 $parent = $item['parent'];
1490 // Preparing public shadow (removing user specific data)
1493 unset($item['parent']);
1494 unset($item['wall']);
1495 unset($item['mention']);
1496 unset($item['origin']);
1497 unset($item['starred']);
1498 unset($item['postopts']);
1499 unset($item['inform']);
1500 unset($item['post-type']);
1501 $item['contact-id'] = Contact::getIdForURL($item['author-link']);
1503 $public_shadow = self::insert($item, false, true);
1505 Logger::info('Stored public shadow', ['uri-id' => $item['uri-id'], 'id' => $public_shadow]);
1507 // If this was a comment to a Diaspora post we don't get our comment back.
1508 // This means that we have to distribute the comment by ourselves.
1509 if ($origin && Post::exists(['id' => $parent, 'network' => Protocol::DIASPORA])) {
1510 self::distribute($public_shadow);
1515 * Adds a language specification in a "language" element of given $arr.
1516 * Expects "body" element to exist in $arr.
1518 * @param array $item
1519 * @return string detected language
1520 * @throws \Text_LanguageDetect_Exception
1522 private static function getLanguage(array $item)
1524 if (!in_array($item['gravity'], [GRAVITY_PARENT, GRAVITY_COMMENT]) || empty($item['body'])) {
1528 // Convert attachments to links
1529 $naked_body = BBCode::removeAttachment($item['body']);
1530 if (empty($naked_body)) {
1534 // Remove links and pictures
1535 $naked_body = BBCode::removeLinks($naked_body);
1537 // Convert the title and the body to plain text
1538 $naked_body = trim($item['title'] . "\n" . BBCode::toPlaintext($naked_body));
1540 // Remove possibly remaining links
1541 $naked_body = preg_replace(Strings::autoLinkRegEx(), '', $naked_body);
1543 if (empty($naked_body)) {
1547 $ld = new Language(DI::l10n()->getAvailableLanguages());
1548 $languages = $ld->detect($naked_body)->limit(0, 3)->close();
1549 if (is_array($languages)) {
1550 return json_encode($languages);
1556 public static function getLanguageMessage(array $item)
1558 $iso639 = new \Matriphe\ISO639\ISO639;
1560 $used_languages = '';
1561 foreach (json_decode($item['language'], true) as $language => $reliability) {
1562 $used_languages .= $iso639->languageByCode1($language) . ' (' . $language . "): " . number_format($reliability, 5) . '\n';
1564 $used_languages = DI::l10n()->t('Detected languages in this post:\n%s', $used_languages);
1565 return $used_languages;
1569 * Creates an unique guid out of a given uri
1571 * @param string $uri uri of an item entry
1572 * @param string $host hostname for the GUID prefix
1573 * @return string unique guid
1575 public static function guidFromUri($uri, $host)
1577 // Our regular guid routine is using this kind of prefix as well
1578 // We have to avoid that different routines could accidentally create the same value
1579 $parsed = parse_url($uri);
1581 // We use a hash of the hostname as prefix for the guid
1582 $guid_prefix = hash("crc32", $host);
1584 // Remove the scheme to make sure that "https" and "http" doesn't make a difference
1585 unset($parsed["scheme"]);
1587 // Glue it together to be able to make a hash from it
1588 $host_id = implode("/", $parsed);
1590 // We could use any hash algorithm since it isn't a security issue
1591 $host_hash = hash("ripemd128", $host_id);
1593 return $guid_prefix.$host_hash;
1597 * generate an unique URI
1599 * @param integer $uid User id
1600 * @param string $guid An existing GUID (Otherwise it will be generated)
1603 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1605 public static function newURI($uid, $guid = "")
1608 $guid = System::createUUID();
1611 return DI::baseUrl()->get() . '/objects/' . $guid;
1615 * Set "success_update" and "last-item" to the date of the last time we heard from this contact
1617 * This can be used to filter for inactive contacts.
1618 * Only do this for public postings to avoid privacy problems, since poco data is public.
1619 * Don't set this value if it isn't from the owner (could be an author that we don't know)
1621 * @param array $arr Contains the just posted item record
1622 * @throws \Exception
1624 private static function updateContact($arr)
1626 // Unarchive the author
1627 $contact = DBA::selectFirst('contact', [], ['id' => $arr["author-id"]]);
1628 if (DBA::isResult($contact)) {
1629 Contact::unmarkForArchival($contact);
1632 // Unarchive the contact if it's not our own contact
1633 $contact = DBA::selectFirst('contact', [], ['id' => $arr["contact-id"], 'self' => false]);
1634 if (DBA::isResult($contact)) {
1635 Contact::unmarkForArchival($contact);
1638 /// @todo On private posts we could obfuscate the date
1639 $update = ($arr['private'] != self::PRIVATE) || in_array($arr['network'], Protocol::FEDERATED);
1641 // Is it a forum? Then we don't care about the rules from above
1642 if (!$update && in_array($arr["network"], [Protocol::ACTIVITYPUB, Protocol::DFRN]) && ($arr["parent-uri-id"] === $arr["uri-id"])) {
1643 if (DBA::exists('contact', ['id' => $arr['contact-id'], 'forum' => true])) {
1649 // The "self" contact id is used (for example in the connectors) when the contact is unknown
1650 // So we have to ensure to only update the last item when it had been our own post,
1651 // or it had been done by a "regular" contact.
1652 if (!empty($arr['wall'])) {
1653 $condition = ['id' => $arr['contact-id']];
1655 $condition = ['id' => $arr['contact-id'], 'self' => false];
1657 DBA::update('contact', ['failed' => false, 'success_update' => $arr['received'], 'last-item' => $arr['received']], $condition);
1659 // Now do the same for the system wide contacts with uid=0
1660 if ($arr['private'] != self::PRIVATE) {
1661 DBA::update('contact', ['failed' => false, 'success_update' => $arr['received'], 'last-item' => $arr['received']],
1662 ['id' => $arr['owner-id']]);
1664 if ($arr['owner-id'] != $arr['author-id']) {
1665 DBA::update('contact', ['failed' => false, 'success_update' => $arr['received'], 'last-item' => $arr['received']],
1666 ['id' => $arr['author-id']]);
1671 public static function setHashtags($body)
1673 $body = BBCode::performWithEscapedTags($body, ['noparse', 'pre', 'code', 'img'], function ($body) {
1674 $tags = BBCode::getTags($body);
1677 if (!count($tags)) {
1681 // This sorting is important when there are hashtags that are part of other hashtags
1682 // Otherwise there could be problems with hashtags like #test and #test2
1683 // Because of this we are sorting from the longest to the shortest tag.
1684 usort($tags, function ($a, $b) {
1685 return strlen($b) <=> strlen($a);
1688 $URLSearchString = "^\[\]";
1690 // All hashtags should point to the home server if "local_tags" is activated
1691 if (DI::config()->get('system', 'local_tags')) {
1692 $body = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1693 "#[url=" . DI::baseUrl() . "/search?tag=$2]$2[/url]", $body);
1696 // mask hashtags inside of url, bookmarks and attachments to avoid urls in urls
1697 $body = preg_replace_callback("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1699 return ("[url=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/url]");
1702 $body = preg_replace_callback("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism",
1704 return ("[bookmark=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/bookmark]");
1707 $body = preg_replace_callback("/\[attachment (.*)\](.*?)\[\/attachment\]/ism",
1709 return ("[attachment " . str_replace("#", "#", $match[1]) . "]" . $match[2] . "[/attachment]");
1712 // Repair recursive urls
1713 $body = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1716 foreach ($tags as $tag) {
1717 if ((strpos($tag, '#') !== 0) || strpos($tag, '[url=') || strlen($tag) < 2 || $tag[1] == '#') {
1721 $basetag = str_replace('_', ' ', substr($tag, 1));
1722 $newtag = '#[url=' . DI::baseUrl() . '/search?tag=' . $basetag . ']' . $basetag . '[/url]';
1724 $body = str_replace($tag, $newtag, $body);
1727 // Convert back the masked hashtags
1728 $body = str_replace("#", "#", $body);
1737 * look for mention tags and setup a second delivery chain for forum/community posts if appropriate
1740 * @param int $item_id
1741 * @return boolean true if item was deleted, else false
1742 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1743 * @throws \ImagickException
1745 private static function tagDeliver($uid, $item_id)
1749 $user = DBA::selectFirst('user', [], ['uid' => $uid]);
1750 if (!DBA::isResult($user)) {
1754 $community_page = (($user['page-flags'] == User::PAGE_FLAGS_COMMUNITY) ? true : false);
1755 $prvgroup = (($user['page-flags'] == User::PAGE_FLAGS_PRVGROUP) ? true : false);
1757 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $item_id]);
1758 if (!DBA::isResult($item)) {
1762 $link = Strings::normaliseLink(DI::baseUrl() . '/profile/' . $user['nickname']);
1765 * Diaspora uses their own hardwired link URL in @-tags
1766 * instead of the one we supply with webfinger
1768 $dlink = Strings::normaliseLink(DI::baseUrl() . '/u/' . $user['nickname']);
1770 $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism', $item['body'], $matches, PREG_SET_ORDER);
1772 foreach ($matches as $mtch) {
1773 if (Strings::compareLink($link, $mtch[1]) || Strings::compareLink($dlink, $mtch[1])) {
1775 Logger::log('mention found: ' . $mtch[2]);
1781 $tags = Tag::getByURIId($item['uri-id'], [Tag::MENTION, Tag::EXCLUSIVE_MENTION]);
1782 foreach ($tags as $tag) {
1783 if (Strings::compareLink($link, $tag['url']) || Strings::compareLink($dlink, $tag['url'])) {
1785 DI::logger()->info('mention found in tag.', ['url' => $tag['url']]);
1791 if (($community_page || $prvgroup) &&
1792 !$item['wall'] && !$item['origin'] && ($item['gravity'] == GRAVITY_PARENT)) {
1793 Logger::info('Delete private group/communiy top-level item without mention', ['id' => $item['id'], 'guid'=> $item['guid']]);
1794 Post\User::delete(['uri-id' => $item['uri-id'], 'uid' => $item['uid']]);
1800 $arr = ['item' => $item, 'user' => $user];
1802 Hook::callAll('tagged', $arr);
1804 if (!$community_page && !$prvgroup) {
1809 * tgroup delivery - setup a second delivery chain
1810 * prevent delivery looping - only proceed
1811 * if the message originated elsewhere and is a top-level post
1813 if ($item['wall'] || $item['origin'] || ($item['id'] != $item['parent'])) {
1817 // now change this copy of the post to a forum head message and deliver to all the tgroup members
1818 $self = DBA::selectFirst('contact', ['id', 'name', 'url', 'thumb'], ['uid' => $uid, 'self' => true]);
1819 if (!DBA::isResult($self)) {
1823 $owner_id = Contact::getIdForURL($self['url']);
1825 // also reset all the privacy bits to the forum default permissions
1827 $private = ($user['allow_cid'] || $user['allow_gid'] || $user['deny_cid'] || $user['deny_gid']) ? self::PRIVATE : self::PUBLIC;
1829 $psid = PermissionSet::getIdFromACL(
1837 $forum_mode = ($prvgroup ? 2 : 1);
1839 $fields = ['wall' => true, 'origin' => true, 'forum_mode' => $forum_mode, 'contact-id' => $self['id'],
1840 'owner-id' => $owner_id, 'private' => $private, 'psid' => $psid];
1841 self::update($fields, ['id' => $item['id']]);
1843 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], 'Notifier', Delivery::POST, (int)$item['uri-id'], (int)$item['uid']);
1845 self::performActivity($item['id'], 'announce', $uid);
1851 * Automatically reshare the item if the "remote_self" option is selected
1853 * @param array $item
1856 private static function autoReshare(array $item)
1858 if ($item['gravity'] != GRAVITY_PARENT) {
1862 if (!DBA::exists('contact', ['id' => $item['contact-id'], 'remote_self' => Contact::MIRROR_NATIVE_RESHARE])) {
1866 if (!in_array($item['network'], [Protocol::ACTIVITYPUB, Protocol::DFRN])) {
1870 Logger::info('Automatically reshare item', ['uid' => $item['uid'], 'id' => $item['id'], 'guid' => $item['guid'], 'uri-id' => $item['uri-id']]);
1872 self::performActivity($item['id'], 'announce', $item['uid']);
1875 public static function isRemoteSelf($contact, &$datarray)
1877 if (!$contact['remote_self']) {
1881 // Prevent the forwarding of posts that are forwarded
1882 if (!empty($datarray["extid"]) && ($datarray["extid"] == Protocol::DFRN)) {
1883 Logger::info('Already forwarded');
1887 // Prevent to forward already forwarded posts
1888 if ($datarray["app"] == DI::baseUrl()->getHostname()) {
1889 Logger::info('Already forwarded (second test)');
1893 // Only forward posts
1894 if ($datarray["verb"] != Activity::POST) {
1895 Logger::info('No post');
1899 if (($contact['network'] != Protocol::FEED) && ($datarray['private'] == self::PRIVATE)) {
1900 Logger::info('Not public');
1904 $datarray2 = $datarray;
1905 Logger::info('remote-self start', ['contact' => $contact['url'], 'remote_self'=> $contact['remote_self'], 'item' => $datarray]);
1906 if ($contact['remote_self'] == Contact::MIRROR_OWN_POST) {
1907 $self = DBA::selectFirst('contact', ['id', 'name', 'url', 'thumb'],
1908 ['uid' => $contact['uid'], 'self' => true]);
1909 if (DBA::isResult($self)) {
1910 $datarray['contact-id'] = $self["id"];
1912 $datarray['owner-name'] = $self["name"];
1913 $datarray['owner-link'] = $self["url"];
1914 $datarray['owner-avatar'] = $self["thumb"];
1916 $datarray['author-name'] = $datarray['owner-name'];
1917 $datarray['author-link'] = $datarray['owner-link'];
1918 $datarray['author-avatar'] = $datarray['owner-avatar'];
1920 unset($datarray['edited']);
1922 unset($datarray['network']);
1923 unset($datarray['owner-id']);
1924 unset($datarray['author-id']);
1927 if ($contact['network'] != Protocol::FEED) {
1928 $old_uri_id = $datarray["uri-id"] ?? 0;
1929 $datarray["guid"] = System::createUUID();
1930 unset($datarray["plink"]);
1931 $datarray["uri"] = self::newURI($contact['uid'], $datarray["guid"]);
1932 $datarray["uri-id"] = ItemURI::getIdByURI($datarray["uri"]);
1933 $datarray["extid"] = Protocol::DFRN;
1934 $urlpart = parse_url($datarray2['author-link']);
1935 $datarray["app"] = $urlpart["host"];
1936 if (!empty($old_uri_id)) {
1937 Post\Media::copy($old_uri_id, $datarray["uri-id"]);
1940 unset($datarray["parent-uri"]);
1941 unset($datarray["thr-parent"]);
1943 $datarray['private'] = self::PUBLIC;
1947 if ($contact['network'] != Protocol::FEED) {
1948 // Store the original post
1949 $result = self::insert($datarray2);
1950 Logger::info('remote-self post original item', ['contact' => $contact['url'], 'result'=> $result, 'item' => $datarray2]);
1952 $datarray["app"] = "Feed";
1956 // Trigger automatic reactions for addons
1957 $datarray['api_source'] = true;
1959 // We have to tell the hooks who we are - this really should be improved
1960 $_SESSION['authenticated'] = true;
1961 $_SESSION['uid'] = $contact['uid'];
1963 return (bool)$result;
1970 * @param array $item
1973 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1974 * @throws \ImagickException
1976 public static function fixPrivatePhotos($s, $uid, $item = null, $cid = 0)
1978 if (DI::config()->get('system', 'disable_embedded')) {
1982 Logger::info('check for photos');
1983 $site = substr(DI::baseUrl(), strpos(DI::baseUrl(), '://'));
1988 $img_start = strpos($orig_body, '[img');
1989 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
1990 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
1992 while (($img_st_close !== false) && ($img_len !== false)) {
1993 $img_st_close++; // make it point to AFTER the closing bracket
1994 $image = substr($orig_body, $img_start + $img_st_close, $img_len);
1996 Logger::info('found photo', ['image' => $image]);
1998 if (stristr($image, $site . '/photo/')) {
1999 // Only embed locally hosted photos
2001 $i = basename($image);
2002 $i = str_replace(['.jpg', '.png', '.gif'], ['', '', ''], $i);
2003 $x = strpos($i, '-');
2006 $res = substr($i, $x + 1);
2007 $i = substr($i, 0, $x);
2008 $photo = Photo::getPhotoForUser($uid, $i, $res);
2009 if (DBA::isResult($photo)) {
2011 * Check to see if we should replace this photo link with an embedded image
2012 * 1. No need to do so if the photo is public
2013 * 2. If there's a contact-id provided, see if they're in the access list
2014 * for the photo. If so, embed it.
2015 * 3. Otherwise, if we have an item, see if the item permissions match the photo
2016 * permissions, regardless of order but first check to see if they're an exact
2017 * match to save some processing overhead.
2019 if (self::hasPermissions($photo)) {
2021 $recips = self::enumeratePermissions($photo);
2022 if (in_array($cid, $recips)) {
2026 if (self::samePermissions($uid, $item, $photo)) {
2032 $photo_img = Photo::getImageForPhoto($photo);
2033 // If a custom width and height were specified, apply before embedding
2034 if (preg_match("/\[img\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
2035 Logger::info('scaling photo');
2037 $width = intval($match[1]);
2038 $height = intval($match[2]);
2040 $photo_img->scaleDown(max($width, $height));
2043 $data = $photo_img->asString();
2044 $type = $photo_img->getType();
2046 Logger::info('replacing photo');
2047 $image = 'data:' . $type . ';base64,' . base64_encode($data);
2048 Logger::debug('replaced', ['image' => $image]);
2054 $new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/img]';
2055 $orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/img]'));
2056 if ($orig_body === false) {
2060 $img_start = strpos($orig_body, '[img');
2061 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
2062 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
2065 $new_body = $new_body . $orig_body;
2070 private static function hasPermissions($obj)
2072 return !empty($obj['allow_cid']) || !empty($obj['allow_gid']) ||
2073 !empty($obj['deny_cid']) || !empty($obj['deny_gid']);
2076 private static function samePermissions($uid, $obj1, $obj2)
2078 // first part is easy. Check that these are exactly the same.
2079 if (($obj1['allow_cid'] == $obj2['allow_cid'])
2080 && ($obj1['allow_gid'] == $obj2['allow_gid'])
2081 && ($obj1['deny_cid'] == $obj2['deny_cid'])
2082 && ($obj1['deny_gid'] == $obj2['deny_gid'])) {
2086 // This is harder. Parse all the permissions and compare the resulting set.
2087 $recipients1 = self::enumeratePermissions($obj1);
2088 $recipients2 = self::enumeratePermissions($obj2);
2092 /// @TODO Comparison of arrays, maybe use array_diff_assoc() here?
2093 return ($recipients1 == $recipients2);
2097 * Returns an array of contact-ids that are allowed to see this object
2099 * @param array $obj Item array with at least uid, allow_cid, allow_gid, deny_cid and deny_gid
2100 * @param bool $check_dead Prunes unavailable contacts from the result
2102 * @throws \Exception
2104 public static function enumeratePermissions(array $obj, bool $check_dead = false)
2106 $aclFormater = DI::aclFormatter();
2108 $allow_people = $aclFormater->expand($obj['allow_cid']);
2109 $allow_groups = Group::expand($obj['uid'], $aclFormater->expand($obj['allow_gid']), $check_dead);
2110 $deny_people = $aclFormater->expand($obj['deny_cid']);
2111 $deny_groups = Group::expand($obj['uid'], $aclFormater->expand($obj['deny_gid']), $check_dead);
2112 $recipients = array_unique(array_merge($allow_people, $allow_groups));
2113 $deny = array_unique(array_merge($deny_people, $deny_groups));
2114 $recipients = array_diff($recipients, $deny);
2118 public static function expire(int $uid, int $days, string $network = "", bool $force = false)
2120 if (!$uid || ($days < 1)) {
2124 $condition = ["`uid` = ? AND NOT `deleted` AND `gravity` = ?",
2125 $uid, GRAVITY_PARENT];
2128 * $expire_network_only = save your own wall posts
2129 * and just expire conversations started by others
2131 $expire_network_only = DI::pConfig()->get($uid, 'expire', 'network_only', false);
2133 if ($expire_network_only) {
2134 $condition[0] .= " AND NOT `wall`";
2137 if ($network != "") {
2138 $condition[0] .= " AND `network` = ?";
2139 $condition[] = $network;
2142 $condition[0] .= " AND `received` < UTC_TIMESTAMP() - INTERVAL ? DAY";
2143 $condition[] = $days;
2145 $items = Post::select(['resource-id', 'starred', 'id', 'post-type', 'uid', 'uri-id'], $condition);
2147 if (!DBA::isResult($items)) {
2151 $expire_items = DI::pConfig()->get($uid, 'expire', 'items', true);
2153 // Forcing expiring of items - but not notes and marked items
2155 $expire_items = true;
2158 $expire_notes = DI::pConfig()->get($uid, 'expire', 'notes', true);
2159 $expire_starred = DI::pConfig()->get($uid, 'expire', 'starred', true);
2160 $expire_photos = DI::pConfig()->get($uid, 'expire', 'photos', false);
2164 $priority = DI::config()->get('system', 'expire-notify-priority');
2166 while ($item = Post::fetch($items)) {
2167 // don't expire filed items
2168 if (DBA::exists('post-category', ['uri-id' => $item['uri-id'], 'uid' => $item['uid'], 'type' => Post\Category::FILE])) {
2172 // Only expire posts, not photos and photo comments
2174 if (!$expire_photos && strlen($item['resource-id'])) {
2176 } elseif (!$expire_starred && intval($item['starred'])) {
2178 } elseif (!$expire_notes && ($item['post-type'] == self::PT_PERSONAL_NOTE)) {
2180 } elseif (!$expire_items && ($item['post-type'] != self::PT_PERSONAL_NOTE)) {
2184 self::markForDeletionById($item['id'], $priority);
2189 Logger::log('User ' . $uid . ": expired $expired items; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
2192 public static function firstPostDate($uid, $wall = false)
2194 $condition = ['gravity' => GRAVITY_PARENT, 'uid' => $uid, 'wall' => $wall, 'deleted' => false, 'visible' => true];
2195 $params = ['order' => ['received' => false]];
2196 $thread = Post::selectFirst(['received'], $condition, $params);
2197 if (DBA::isResult($thread)) {
2198 $postdate = substr(DateTimeFormat::local($thread['received']), 0, 10);
2205 * add/remove activity to an item
2207 * Toggle activities as like,dislike,attend of an item
2209 * @param int $item_id
2210 * @param string $verb
2211 * Activity verb. One of
2212 * like, unlike, dislike, undislike, attendyes, unattendyes,
2213 * attendno, unattendno, attendmaybe, unattendmaybe,
2214 * announce, unannouce
2216 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2217 * @throws \ImagickException
2218 * @hook 'post_local_end'
2220 * 'post_id' => ID of posted item
2222 public static function performActivity(int $item_id, string $verb, int $uid)
2228 Logger::notice('Start create activity', ['verb' => $verb, 'item' => $item_id, 'user' => $uid]);
2230 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $item_id]);
2231 if (!DBA::isResult($item)) {
2232 Logger::log('like: unknown item ' . $item_id);
2236 $uri_id = $item['uri-id'];
2238 if (!in_array($item['uid'], [0, $uid])) {
2242 if (!Post::exists(['uri-id' => $item['parent-uri-id'], 'uid' => $uid])) {
2243 $stored = self::storeForUserByUriId($item['parent-uri-id'], $uid);
2244 if (($item['parent-uri-id'] == $item['uri-id']) && !empty($stored)) {
2245 $item = Post::selectFirst(self::ITEM_FIELDLIST, ['id' => $stored]);
2246 if (!DBA::isResult($item)) {
2247 Logger::info('Could not fetch just created item - should not happen', ['stored' => $stored, 'uid' => $uid, 'uri-id' => $uri_id]);
2253 // Retrieves the local post owner
2254 $owner = User::getOwnerDataById($uid);
2255 if (empty($owner)) {
2256 Logger::info('Empty owner for user', ['uid' => $uid]);
2260 // Retrieve the current logged in user's public contact
2261 $author_id = Contact::getIdForURL($owner['url']);
2262 if (empty($author_id)) {
2263 Logger::info('Empty public contact');
2271 $activity = Activity::LIKE;
2275 $activity = Activity::DISLIKE;
2279 $activity = Activity::ATTEND;
2283 $activity = Activity::ATTENDNO;
2286 case 'unattendmaybe':
2287 $activity = Activity::ATTENDMAYBE;
2291 $activity = Activity::FOLLOW;
2295 $activity = Activity::ANNOUNCE;
2298 Logger::notice('unknown verb', ['verb' => $verb, 'item' => $item_id]);
2302 $mode = Strings::startsWith($verb, 'un') ? 'delete' : 'create';
2304 // Enable activity toggling instead of on/off
2305 $event_verb_flag = $activity === Activity::ATTEND || $activity === Activity::ATTENDNO || $activity === Activity::ATTENDMAYBE;
2307 // Look for an existing verb row
2308 // Event participation activities are mutually exclusive, only one of them can exist at all times.
2309 if ($event_verb_flag) {
2310 $verbs = [Activity::ATTEND, Activity::ATTENDNO, Activity::ATTENDMAYBE];
2312 // Translate to the index based activity index
2314 foreach ($verbs as $verb) {
2315 $vids[] = Verb::getID($verb);
2318 $vids = Verb::getID($activity);
2321 $condition = ['vid' => $vids, 'deleted' => false, 'gravity' => GRAVITY_ACTIVITY,
2322 'author-id' => $author_id, 'uid' => $item['uid'], 'thr-parent-id' => $uri_id];
2323 $like_item = Post::selectFirst(['id', 'guid', 'verb'], $condition);
2325 if (DBA::isResult($like_item)) {
2327 * Truth table for existing activities
2329 * | Inputs || Outputs |
2330 * |----------------------------||-------------------|
2331 * | Mode | Event | Same verb || Delete? | Return? |
2332 * |--------|-------|-----------||---------|---------|
2333 * | create | Yes | Yes || No | Yes |
2334 * | create | Yes | No || Yes | No |
2335 * | create | No | Yes || No | Yes |
2336 * | create | No | No || N/A†|
2337 * | delete | Yes | Yes || Yes | N/A‡ |
2338 * | delete | Yes | No || No | N/A‡ |
2339 * | delete | No | Yes || Yes | N/A‡ |
2340 * | delete | No | No || N/A†|
2341 * |--------|-------|-----------||---------|---------|
2342 * | A | B | C || A xor C | !B or C |
2344 * †Can't happen: It's impossible to find an existing non-event activity without
2345 * the same verb because we are only looking for this single verb.
2347 * ‡ The "mode = delete" is returning early whether an existing activity was found or not.
2349 if ($mode == 'create' xor $like_item['verb'] == $activity) {
2350 self::markForDeletionById($like_item['id']);
2353 if (!$event_verb_flag || $like_item['verb'] == $activity) {
2358 // No need to go further if we aren't creating anything
2359 if ($mode == 'delete') {
2363 $objtype = $item['resource-id'] ? Activity\ObjectType::IMAGE : Activity\ObjectType::NOTE;
2366 'guid' => System::createUUID(),
2367 'uri' => self::newURI($item['uid']),
2368 'uid' => $item['uid'],
2369 'contact-id' => $owner['id'],
2370 'wall' => $item['wall'],
2372 'network' => Protocol::DFRN,
2373 'protocol' => Conversation::PARCEL_DIRECT,
2374 'direction' => Conversation::PUSH,
2375 'gravity' => GRAVITY_ACTIVITY,
2376 'parent' => $item['id'],
2377 'thr-parent' => $item['uri'],
2378 'owner-id' => $author_id,
2379 'author-id' => $author_id,
2380 'body' => $activity,
2381 'verb' => $activity,
2382 'object-type' => $objtype,
2383 'allow_cid' => $item['allow_cid'],
2384 'allow_gid' => $item['allow_gid'],
2385 'deny_cid' => $item['deny_cid'],
2386 'deny_gid' => $item['deny_gid'],
2391 $signed = Diaspora::createLikeSignature($uid, $new_item);
2392 if (!empty($signed)) {
2393 $new_item['diaspora_signed_text'] = json_encode($signed);
2396 $new_item_id = self::insert($new_item);
2398 // If the parent item isn't visible then set it to visible
2399 if (!$item['visible']) {
2400 self::update(['visible' => true], ['id' => $item['id']]);
2403 $new_item['id'] = $new_item_id;
2405 Hook::callAll('post_local_end', $new_item);
2411 * Fetch the SQL condition for the given user id
2413 * @param integer $owner_id User ID for which the permissions should be fetched
2414 * @return array condition
2416 public static function getPermissionsConditionArrayByUserId(int $owner_id)
2418 $local_user = local_user();
2419 $remote_user = Session::getRemoteContactID($owner_id);
2421 // default permissions - anonymous user
2422 $condition = ["`private` != ?", self::PRIVATE];
2424 if ($local_user && ($local_user == $owner_id)) {
2425 // Profile owner - everything is visible
2427 } elseif ($remote_user) {
2428 // Authenticated visitor - fetch the matching permissionsets
2429 $set = PermissionSet::get($owner_id, $remote_user);
2431 $condition = ["(`private` != ? OR (`private` = ? AND `wall`
2432 AND `psid` IN (" . implode(', ', array_fill(0, count($set), '?')) . ")))",
2433 self::PRIVATE, self::PRIVATE];
2434 $condition = array_merge($condition, $set);
2442 * Get a permission SQL string for the given user
2444 * @param int $owner_id
2445 * @param string $table
2448 public static function getPermissionsSQLByUserId(int $owner_id, string $table = '')
2450 $local_user = local_user();
2451 $remote_user = Session::getRemoteContactID($owner_id);
2453 if (!empty($table)) {
2454 $table = DBA::quoteIdentifier($table) . '.';
2458 * Construct permissions
2460 * default permissions - anonymous user
2462 $sql = sprintf(" AND " . $table . "`private` != %d", self::PRIVATE);
2464 // Profile owner - everything is visible
2465 if ($local_user && ($local_user == $owner_id)) {
2467 } elseif ($remote_user) {
2469 * Authenticated visitor. Unless pre-verified,
2470 * check that the contact belongs to this $owner_id
2471 * and load the groups the visitor belongs to.
2472 * If pre-verified, the caller is expected to have already
2473 * done this and passed the groups into this function.
2475 $set = PermissionSet::get($owner_id, $remote_user);
2478 $sql_set = sprintf(" OR (" . $table . "`private` = %d AND " . $table . "`wall` AND " . $table . "`psid` IN (", self::PRIVATE) . implode(',', $set) . "))";
2483 $sql = sprintf(" AND (" . $table . "`private` != %d", self::PRIVATE) . $sql_set . ")";
2490 * get translated item type
2495 public static function postType($item)
2497 if (!empty($item['event-id'])) {
2498 return DI::l10n()->t('event');
2499 } elseif (!empty($item['resource-id'])) {
2500 return DI::l10n()->t('photo');
2501 } elseif ($item['gravity'] == GRAVITY_ACTIVITY) {
2502 return DI::l10n()->t('activity');
2503 } elseif ($item['gravity'] == GRAVITY_COMMENT) {
2504 return DI::l10n()->t('comment');
2507 return DI::l10n()->t('post');
2511 * Sets the "rendered-html" field of the provided item
2513 * Body is preserved to avoid side-effects as we modify it just-in-time for spoilers and private image links
2515 * @param array $item
2517 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2518 * @todo Remove reference, simply return "rendered-html" and "rendered-hash"
2520 public static function putInCache(&$item)
2522 // Save original body to prevent addons to modify it
2523 $body = $item['body'];
2525 $rendered_hash = $item['rendered-hash'] ?? '';
2526 $rendered_html = $item['rendered-html'] ?? '';
2528 if ($rendered_hash == ''
2529 || $rendered_html == ''
2530 || $rendered_hash != hash('md5', BBCode::VERSION . '::' . $body)
2531 || DI::config()->get('system', 'ignore_cache')
2533 self::addRedirToImageTags($item);
2535 $item['rendered-html'] = BBCode::convert($item['body']);
2536 $item['rendered-hash'] = hash('md5', BBCode::VERSION . '::' . $body);
2538 $hook_data = ['item' => $item, 'rendered-html' => $item['rendered-html'], 'rendered-hash' => $item['rendered-hash']];
2539 Hook::callAll('put_item_in_cache', $hook_data);
2540 $item['rendered-html'] = $hook_data['rendered-html'];
2541 $item['rendered-hash'] = $hook_data['rendered-hash'];
2544 // Update if the generated values differ from the existing ones
2545 if ((($rendered_hash != $item['rendered-hash']) || ($rendered_html != $item['rendered-html'])) && !empty($item['id'])) {
2548 'rendered-html' => $item['rendered-html'],
2549 'rendered-hash' => $item['rendered-hash']
2551 ['id' => $item['id']]
2556 $item['body'] = $body;
2560 * Find any non-embedded images in private items and add redir links to them
2562 * @param array &$item The field array of an item row
2564 private static function addRedirToImageTags(array &$item)
2569 $cnt = preg_match_all('|\[img\](http[^\[]*?/photo/[a-fA-F0-9]+?(-[0-9]\.[\w]+?)?)\[\/img\]|', $item['body'], $matches, PREG_SET_ORDER);
2571 foreach ($matches as $mtch) {
2572 if (strpos($mtch[1], '/redir') !== false) {
2576 if ((local_user() == $item['uid']) && ($item['private'] == self::PRIVATE) && ($item['contact-id'] != $app->contact['id']) && ($item['network'] == Protocol::DFRN)) {
2577 $img_url = 'redir/' . $item['contact-id'] . '?url=' . urlencode($mtch[1]);
2578 $item['body'] = str_replace($mtch[0], '[img]' . $img_url . '[/img]', $item['body']);
2585 * Given an item array, convert the body element from bbcode to html and add smilie icons.
2586 * If attach is true, also add icons for item attachments.
2588 * @param array $item
2589 * @param boolean $attach
2590 * @param boolean $is_preview
2591 * @return string item body html
2592 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2593 * @throws \ImagickException
2594 * @hook prepare_body_init item array before any work
2595 * @hook prepare_body_content_filter ('item'=>item array, 'filter_reasons'=>string array) before first bbcode to html
2596 * @hook prepare_body ('item'=>item array, 'html'=>body string, 'is_preview'=>boolean, 'filter_reasons'=>string array) after first bbcode to html
2597 * @hook prepare_body_final ('item'=>item array, 'html'=>body string) after attach icons and blockquote special case handling (spoiler, author)
2599 public static function prepareBody(array &$item, $attach = false, $is_preview = false)
2602 Hook::callAll('prepare_body_init', $item);
2604 // In order to provide theme developers more possibilities, event items
2605 // are treated differently.
2606 if ($item['object-type'] === Activity\ObjectType::EVENT && isset($item['event-id'])) {
2607 $ev = Event::getItemHTML($item);
2611 $tags = Tag::populateFromItem($item);
2613 $item['tags'] = $tags['tags'];
2614 $item['hashtags'] = $tags['hashtags'];
2615 $item['mentions'] = $tags['mentions'];
2617 // Compile eventual content filter reasons
2618 $filter_reasons = [];
2619 if (!$is_preview && public_contact() != $item['author-id']) {
2620 if (!empty($item['content-warning']) && (!local_user() || !DI::pConfig()->get(local_user(), 'system', 'disable_cw', false))) {
2621 $filter_reasons[] = DI::l10n()->t('Content warning: %s', $item['content-warning']);
2626 'filter_reasons' => $filter_reasons
2628 Hook::callAll('prepare_body_content_filter', $hook_data);
2629 $filter_reasons = $hook_data['filter_reasons'];
2633 self::putInCache($item);
2634 $s = $item["rendered-html"];
2639 'preview' => $is_preview,
2640 'filter_reasons' => $filter_reasons
2642 Hook::callAll('prepare_body', $hook_data);
2643 $s = $hook_data['html'];
2647 // Replace the blockquotes with quotes that are used in mails.
2648 $mailquote = '<blockquote type="cite" class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">';
2649 $s = str_replace(['<blockquote>', '<blockquote class="spoiler">', '<blockquote class="author">'], [$mailquote, $mailquote, $mailquote], $s);
2655 foreach (Post\Media::getByURIId($item['uri-id'], [Post\Media::DOCUMENT, Post\Media::TORRENT, Post\Media::UNKNOWN]) as $attachment) {
2656 $mime = $attachment['mimetype'];
2658 $author = ['uid' => 0, 'id' => $item['author-id'],
2659 'network' => $item['author-network'], 'url' => $item['author-link']];
2660 $the_url = Contact::magicLinkByContact($author, $attachment['url']);
2662 if (strpos($mime, 'video') !== false) {
2665 DI::page()['htmlhead'] .= Renderer::replaceMacros(Renderer::getMarkupTemplate('videos_head.tpl'));
2668 $as .= Renderer::replaceMacros(Renderer::getMarkupTemplate('video_top.tpl'), [
2670 'id' => $item['author-id'],
2671 'title' => DI::l10n()->t('View Video'),
2678 $filetype = strtolower(substr($mime, 0, strpos($mime, '/')));
2680 $filesubtype = strtolower(substr($mime, strpos($mime, '/') + 1));
2681 $filesubtype = str_replace('.', '-', $filesubtype);
2684 $filesubtype = 'unkn';
2687 $title = Strings::escapeHtml(trim(($attachment['description'] ?? '') ?: $attachment['url']));
2688 $title .= ' ' . ($attachment['size'] ?? 0) . ' ' . DI::l10n()->t('bytes');
2690 $icon = '<div class="attachtype icon s22 type-' . $filetype . ' subtype-' . $filesubtype . '"></div>';
2691 $as .= '<a href="' . strip_tags($the_url) . '" title="' . $title . '" class="attachlink" target="_blank" rel="noopener noreferrer" >' . $icon . '</a>';
2695 $s .= '<div class="body-attach">'.$as.'<div class="clear"></div></div>';
2699 if (strpos($s, '<div class="map">') !== false && !empty($item['coord'])) {
2700 $x = Map::byCoordinates(trim($item['coord']));
2702 $s = preg_replace('/\<div class\=\"map\"\>/', '$0' . $x, $s);
2706 // Replace friendica image url size with theme preference.
2707 if (!empty($a->theme_info['item_image_size'])) {
2708 $ps = $a->theme_info['item_image_size'];
2709 $s = preg_replace('|(<img[^>]+src="[^"]+/photo/[0-9a-f]+)-[0-9]|', "$1-" . $ps, $s);
2712 $s = HTML::applyContentFilter($s, $filter_reasons);
2714 $hook_data = ['item' => $item, 'html' => $s];
2715 Hook::callAll('prepare_body_final', $hook_data);
2717 return $hook_data['html'];
2721 * get private link for item
2723 * @param array $item
2724 * @return boolean|array False if item has not plink, otherwise array('href'=>plink url, 'title'=>translated title)
2725 * @throws \Exception
2727 public static function getPlink($item)
2731 'href' => "display/" . $item['guid'],
2732 'orig' => "display/" . $item['guid'],
2733 'title' => DI::l10n()->t('View on separate page'),
2734 'orig_title' => DI::l10n()->t('view on separate page'),
2737 if (!empty($item['plink'])) {
2738 $ret["href"] = DI::baseUrl()->remove($item['plink']);
2739 $ret["title"] = DI::l10n()->t('link to source');
2741 } elseif (!empty($item['plink']) && ($item['private'] != self::PRIVATE)) {
2743 'href' => $item['plink'],
2744 'orig' => $item['plink'],
2745 'title' => DI::l10n()->t('link to source'),
2755 * Is the given item array a post that is sent as starting post to a forum?
2757 * @param array $item
2758 * @param array $owner
2760 * @return boolean "true" when it is a forum post
2762 public static function isForumPost(array $item, array $owner = [])
2764 if (empty($owner)) {
2765 $owner = User::getOwnerDataById($item['uid']);
2766 if (empty($owner)) {
2771 if (($item['author-id'] == $item['owner-id']) ||
2772 ($owner['id'] == $item['contact-id']) ||
2773 ($item['uri-id'] != $item['parent-uri-id']) ||
2778 return Contact::isForum($item['contact-id']);
2782 * Search item id for given URI or plink
2784 * @param string $uri
2785 * @param integer $uid
2787 * @return integer item id
2789 public static function searchByLink($uri, $uid = 0)
2791 $ssl_uri = str_replace('http://', 'https://', $uri);
2792 $uris = [$uri, $ssl_uri, Strings::normaliseLink($uri)];
2794 $item = Post::selectFirst(['id'], ['uri' => $uris, 'uid' => $uid]);
2795 if (DBA::isResult($item)) {
2799 $item = Post::selectFirst(['id'], ['plink' => $uris, 'uid' => $uid]);
2800 if (DBA::isResult($item)) {
2808 * Return the URI for a link to the post
2810 * @param string $uri URI or link to post
2812 * @return string URI
2814 public static function getURIByLink(string $uri)
2816 $ssl_uri = str_replace('http://', 'https://', $uri);
2817 $uris = [$uri, $ssl_uri, Strings::normaliseLink($uri)];
2819 $item = Post::selectFirst(['uri'], ['uri' => $uris]);
2820 if (DBA::isResult($item)) {
2821 return $item['uri'];
2824 $item = Post::selectFirst(['uri'], ['plink' => $uris]);
2825 if (DBA::isResult($item)) {
2826 return $item['uri'];
2833 * Fetches item for given URI or plink
2835 * @param string $uri
2836 * @param integer $uid
2838 * @return integer item id
2840 public static function fetchByLink(string $uri, int $uid = 0)
2842 Logger::info('Trying to fetch link', ['uid' => $uid, 'uri' => $uri]);
2843 $item_id = self::searchByLink($uri, $uid);
2844 if (!empty($item_id)) {
2845 Logger::info('Link found', ['uid' => $uid, 'uri' => $uri, 'id' => $item_id]);
2849 if ($fetched_uri = ActivityPub\Processor::fetchMissingActivity($uri)) {
2850 $item_id = self::searchByLink($fetched_uri, $uid);
2852 $item_id = Diaspora::fetchByURL($uri);
2855 if (!empty($item_id)) {
2856 Logger::info('Link fetched', ['uid' => $uid, 'uri' => $uri, 'id' => $item_id]);
2860 Logger::info('Link not found', ['uid' => $uid, 'uri' => $uri]);
2865 * Return share data from an item array (if the item is shared item)
2866 * We are providing the complete Item array, because at some time in the future
2867 * we hopefully will define these values not in the body anymore but in some item fields.
2868 * This function is meant to replace all similar functions in the system.
2870 * @param array $item
2872 * @return array with share information
2874 public static function getShareArray($item)
2876 if (!preg_match("/(.*?)\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism", $item['body'], $matches)) {
2880 $attribute_string = $matches[2];
2881 $attributes = ['comment' => trim($matches[1]), 'shared' => trim($matches[3])];
2882 foreach (['author', 'profile', 'avatar', 'guid', 'posted', 'link'] as $field) {
2883 if (preg_match("/$field=(['\"])(.+?)\\1/ism", $attribute_string, $matches)) {
2884 $attributes[$field] = trim(html_entity_decode($matches[2] ?? '', ENT_QUOTES, 'UTF-8'));
2891 * Fetch item information for shared items from the original items and adds it.
2893 * @param array $item
2895 * @return array item array with data from the original item
2897 public static function addShareDataFromOriginal(array $item)
2899 $shared = self::getShareArray($item);
2900 if (empty($shared)) {
2904 // Real reshares always have got a GUID.
2905 if (empty($shared['guid'])) {
2909 $uid = $item['uid'] ?? 0;
2911 // first try to fetch the item via the GUID. This will work for all reshares that had been created on this system
2912 $shared_item = Post::selectFirst(['title', 'body'], ['guid' => $shared['guid'], 'uid' => [0, $uid]]);
2913 if (!DBA::isResult($shared_item)) {
2914 if (empty($shared['link'])) {
2918 // Otherwhise try to find (and possibly fetch) the item via the link. This should work for Diaspora and ActivityPub posts
2919 $id = self::fetchByLink($shared['link'] ?? '', $uid);
2921 Logger::info('Original item not found', ['url' => $shared['link'] ?? '', 'callstack' => System::callstack()]);
2925 $shared_item = Post::selectFirst(['title', 'body'], ['id' => $id]);
2926 if (!DBA::isResult($shared_item)) {
2929 Logger::info('Got shared data from url', ['url' => $shared['link'], 'callstack' => System::callstack()]);
2931 Logger::info('Got shared data from guid', ['guid' => $shared['guid'], 'callstack' => System::callstack()]);
2934 if (!empty($shared_item['title'])) {
2935 $body = '[h3]' . $shared_item['title'] . "[/h3]\n" . $shared_item['body'];
2936 unset($shared_item['title']);
2938 $body = $shared_item['body'];
2941 $item['body'] = preg_replace("/\[share ([^\[\]]*)\].*\[\/share\]/ism", '[share $1]' . $body . '[/share]', $item['body']);
2942 unset($shared_item['body']);
2944 return array_merge($item, $shared_item);
2948 * Check a prospective item array against user-level permissions
2950 * @param array $item Expected keys: uri, gravity, and
2951 * author-link if is author-id is set,
2952 * owner-link if is owner-id is set,
2953 * causer-link if is causer-id is set.
2954 * @param int $user_id Local user ID
2956 * @throws \Exception
2958 protected static function isAllowedByUser(array $item, int $user_id)
2960 if (!empty($item['author-id']) && Contact\User::isBlocked($item['author-id'], $user_id)) {
2961 Logger::notice('Author is blocked by user', ['author-link' => $item['author-link'], 'uid' => $user_id, 'item-uri' => $item['uri']]);
2965 if (!empty($item['owner-id']) && Contact\User::isBlocked($item['owner-id'], $user_id)) {
2966 Logger::notice('Owner is blocked by user', ['owner-link' => $item['owner-link'], 'uid' => $user_id, 'item-uri' => $item['uri']]);
2970 // The causer is set during a thread completion, for example because of a reshare. It countains the responsible actor.
2971 if (!empty($item['causer-id']) && Contact\User::isBlocked($item['causer-id'], $user_id)) {
2972 Logger::notice('Causer is blocked by user', ['causer-link' => $item['causer-link'] ?? $item['causer-id'], 'uid' => $user_id, 'item-uri' => $item['uri']]);
2976 if (!empty($item['causer-id']) && ($item['gravity'] === GRAVITY_PARENT) && Contact\User::isIgnored($item['causer-id'], $user_id)) {
2977 Logger::notice('Causer is ignored by user', ['causer-link' => $item['causer-link'] ?? $item['causer-id'], 'uid' => $user_id, 'item-uri' => $item['uri']]);