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\Core\Worker;
33 use Friendica\Database\DBA;
35 use Friendica\Model\Post\Category;
36 use Friendica\Protocol\Activity;
37 use Friendica\Protocol\ActivityPub;
38 use Friendica\Protocol\Diaspora;
39 use Friendica\Protocol\OStatus;
40 use Friendica\Util\DateTimeFormat;
41 use Friendica\Util\Map;
42 use Friendica\Util\Network;
43 use Friendica\Util\Security;
44 use Friendica\Util\Strings;
45 use Friendica\Util\XML;
46 use Friendica\Worker\Delivery;
47 use Text_LanguageDetect;
48 use Friendica\Repository\PermissionSet as RepPermissionSet;
52 // Posting types, inspired by https://www.w3.org/TR/activitystreams-vocabulary/#object-types
59 const PT_DOCUMENT = 19;
61 const PT_PERSONAL_NOTE = 128;
63 // Field list that is used to display the items
64 const DISPLAY_FIELDLIST = [
65 'uid', 'id', 'parent', 'uri-id', 'uri', 'thr-parent', 'parent-uri', 'guid', 'network', 'gravity',
66 'commented', 'created', 'edited', 'received', 'verb', 'object-type', 'postopts', 'plink',
67 'wall', 'private', 'starred', 'origin', 'title', 'body', 'file', 'attach', 'language',
68 'content-warning', 'location', 'coord', 'app', 'rendered-hash', 'rendered-html', 'object',
69 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid', 'item_id',
70 'author-id', 'author-link', 'author-name', 'author-avatar', 'author-network',
71 'owner-id', 'owner-link', 'owner-name', 'owner-avatar', 'owner-network',
72 'contact-id', 'contact-uid', 'contact-link', 'contact-name', 'contact-avatar',
73 'writable', 'self', 'cid', 'alias', 'pinned',
74 'event-id', 'event-created', 'event-edited', 'event-start', 'event-finish',
75 'event-summary', 'event-desc', 'event-location', 'event-type',
76 'event-nofinish', 'event-adjust', 'event-ignore', 'event-id',
77 'delivery_queue_count', 'delivery_queue_done', 'delivery_queue_failed', 'activity'
80 // Field list that is used to deliver items via the protocols
81 const DELIVER_FIELDLIST = ['uid', 'id', 'parent', 'uri-id', 'uri', 'thr-parent', 'parent-uri', 'guid',
82 'parent-guid', 'created', 'edited', 'verb', 'object-type', 'object', 'target',
83 'private', 'title', 'body', 'location', 'coord', 'app',
84 'attach', 'deleted', 'extid', 'post-type',
85 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
86 'author-id', 'author-link', 'owner-link', 'contact-uid',
87 'signed_text', 'signature', 'signer', 'network'];
89 // Field list for "item-content" table that is mixed with the item table
90 const MIXED_CONTENT_FIELDLIST = ['title', 'content-warning', 'body', 'location',
91 'coord', 'app', 'rendered-hash', 'rendered-html', 'verb',
92 'object-type', 'object', 'target-type', 'target', 'plink'];
94 // Field list for "item-content" table that is not present in the "item" table
95 const CONTENT_FIELDLIST = ['language'];
97 // All fields in the item table
98 const ITEM_FIELDLIST = ['id', 'uid', 'parent', 'uri', 'parent-uri', 'thr-parent',
99 'guid', 'uri-id', 'parent-uri-id', 'thr-parent-id',
100 'contact-id', 'type', 'wall', 'gravity', 'extid', 'icid', 'iaid', 'psid',
101 'created', 'edited', 'commented', 'received', 'changed', 'verb',
102 'postopts', 'plink', 'resource-id', 'event-id', 'attach', 'inform',
103 'file', 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid', 'post-type',
104 'private', 'pubmail', 'moderated', 'visible', 'starred', 'bookmark',
105 'unseen', 'deleted', 'origin', 'forum_mode', 'mention', 'global', 'network',
106 'title', 'content-warning', 'body', 'location', 'coord', 'app',
107 'rendered-hash', 'rendered-html', 'object-type', 'object', 'target-type', 'target',
108 'author-id', 'author-link', 'author-name', 'author-avatar', 'author-network',
109 'owner-id', 'owner-link', 'owner-name', 'owner-avatar'];
111 // Never reorder or remove entries from this list. Just add new ones at the end, if needed.
112 // The item-activity table only stores the index and needs this array to know the matching activity.
114 Activity::LIKE, Activity::DISLIKE,
115 Activity::ATTEND, Activity::ATTENDNO, Activity::ATTENDMAYBE,
123 private static $legacy_mode = null;
125 public static function isLegacyMode()
127 if (is_null(self::$legacy_mode)) {
128 self::$legacy_mode = (DI::config()->get("system", "post_update_version") < 1279);
131 return self::$legacy_mode;
135 * Set the pinned state of an item
137 * @param integer $iid Item ID
138 * @param integer $uid User ID
139 * @param boolean $pinned Pinned state
141 public static function setPinned(int $iid, int $uid, bool $pinned)
143 DBA::update('user-item', ['pinned' => $pinned], ['iid' => $iid, 'uid' => $uid], true);
147 * Get the pinned state
149 * @param integer $iid Item ID
150 * @param integer $uid User ID
152 * @return boolean pinned state
154 public static function getPinned(int $iid, int $uid)
156 $useritem = DBA::selectFirst('user-item', ['pinned'], ['iid' => $iid, 'uid' => $uid]);
157 if (!DBA::isResult($useritem)) {
160 return (bool)$useritem['pinned'];
164 * Select pinned rows from the item table for a given user
166 * @param integer $uid User ID
167 * @param array $selected Array of selected fields, empty for all
168 * @param array $condition Array of fields for condition
169 * @param array $params Array of several parameters
171 * @return boolean|object
174 public static function selectPinned(int $uid, array $selected = [], array $condition = [], $params = [])
176 $useritems = DBA::select('user-item', ['iid'], ['uid' => $uid, 'pinned' => true]);
177 if (!DBA::isResult($useritems)) {
182 while ($useritem = DBA::fetch($useritems)) {
183 $pinned[] = $useritem['iid'];
185 DBA::close($useritems);
187 if (empty($pinned)) {
191 if (empty($condition) || !is_array($condition)) {
192 $condition = ['iid' => $pinned];
195 $first_key = key($condition);
196 if (!is_int($first_key)) {
197 $condition['iid'] = $pinned;
199 $values_string = substr(str_repeat("?, ", count($pinned)), 0, -2);
200 $condition[0] = '(' . $condition[0] . ") AND `iid` IN (" . $values_string . ")";
201 $condition = array_merge($condition, $pinned);
205 return self::selectThreadForUser($uid, $selected, $condition, $params);
209 * returns an activity index from an activity string
211 * @param string $activity activity string
212 * @return integer Activity index
214 public static function activityToIndex($activity)
216 $index = array_search($activity, self::ACTIVITIES);
218 if (is_bool($index)) {
226 * returns an activity string from an activity index
228 * @param integer $index activity index
229 * @return string Activity string
231 private static function indexToActivity($index)
233 if (is_null($index) || !array_key_exists($index, self::ACTIVITIES)) {
237 return self::ACTIVITIES[$index];
241 * Fetch a single item row
243 * @param mixed $stmt statement object
244 * @return array current row
246 public static function fetch($stmt)
248 $row = DBA::fetch($stmt);
254 // ---------------------- Transform item structure data ----------------------
256 // We prefer the data from the user's contact over the public one
257 if (!empty($row['author-link']) && !empty($row['contact-link']) &&
258 ($row['author-link'] == $row['contact-link'])) {
259 if (isset($row['author-avatar']) && !empty($row['contact-avatar'])) {
260 $row['author-avatar'] = $row['contact-avatar'];
262 if (isset($row['author-name']) && !empty($row['contact-name'])) {
263 $row['author-name'] = $row['contact-name'];
267 if (!empty($row['owner-link']) && !empty($row['contact-link']) &&
268 ($row['owner-link'] == $row['contact-link'])) {
269 if (isset($row['owner-avatar']) && !empty($row['contact-avatar'])) {
270 $row['owner-avatar'] = $row['contact-avatar'];
272 if (isset($row['owner-name']) && !empty($row['contact-name'])) {
273 $row['owner-name'] = $row['contact-name'];
277 // We can always comment on posts from these networks
278 if (array_key_exists('writable', $row) &&
279 in_array($row['internal-network'], Protocol::FEDERATED)) {
280 $row['writable'] = true;
283 // ---------------------- Transform item content data ----------------------
285 // Fetch data from the item-content table whenever there is content there
286 if (self::isLegacyMode()) {
287 $legacy_fields = array_merge(Post\DeliveryData::LEGACY_FIELD_LIST, self::MIXED_CONTENT_FIELDLIST);
288 foreach ($legacy_fields as $field) {
289 if (empty($row[$field]) && !empty($row['internal-item-' . $field])) {
290 $row[$field] = $row['internal-item-' . $field];
292 unset($row['internal-item-' . $field]);
296 if (!empty($row['internal-iaid']) && array_key_exists('verb', $row)) {
297 $row['verb'] = self::indexToActivity($row['internal-activity']);
298 if (array_key_exists('title', $row)) {
301 if (array_key_exists('body', $row)) {
302 $row['body'] = $row['verb'];
304 if (array_key_exists('object', $row)) {
307 if (array_key_exists('object-type', $row)) {
308 $row['object-type'] = Activity\ObjectType::NOTE;
310 } elseif (array_key_exists('verb', $row) && in_array($row['verb'], ['', Activity::POST, Activity::SHARE])) {
311 // Posts don't have a target - but having tags or files.
312 // We safe some performance by building tag and file strings only here.
313 // We remove the target since they aren't used for this type.
314 // In mail posts we do store some mail header data in the object.
315 if (array_key_exists('target', $row)) {
320 if (!array_key_exists('verb', $row) || in_array($row['verb'], ['', Activity::POST, Activity::SHARE])) {
321 // Build the file string out of the term entries
322 if (array_key_exists('file', $row) && empty($row['file'])) {
323 $row['file'] = Category::getTextByURIId($row['internal-uri-id'], $row['internal-uid']);
327 if ($row['internal-psid'] == RepPermissionSet::PUBLIC) {
328 if (array_key_exists('allow_cid', $row)) {
329 $row['allow_cid'] = '';
331 if (array_key_exists('allow_gid', $row)) {
332 $row['allow_gid'] = '';
334 if (array_key_exists('deny_cid', $row)) {
335 $row['deny_cid'] = '';
337 if (array_key_exists('deny_gid', $row)) {
338 $row['deny_gid'] = '';
342 if (array_key_exists('ignored', $row) && array_key_exists('internal-user-ignored', $row) && !is_null($row['internal-user-ignored'])) {
343 $row['ignored'] = $row['internal-user-ignored'];
346 // Remove internal fields
347 unset($row['internal-activity']);
348 unset($row['internal-network']);
349 unset($row['internal-uri-id']);
350 unset($row['internal-uid']);
351 unset($row['internal-psid']);
352 unset($row['internal-iaid']);
353 unset($row['internal-user-ignored']);
354 unset($row['interaction']);
360 * Fills an array with data from an item query
362 * @param object $stmt statement object
363 * @param bool $do_close
364 * @return array Data array
366 public static function inArray($stmt, $do_close = true) {
367 if (is_bool($stmt)) {
372 while ($row = self::fetch($stmt)) {
382 * Check if item data exists
384 * @param array $condition array of fields for condition
386 * @return boolean Are there rows for that condition?
389 public static function exists($condition) {
390 $stmt = self::select(['id'], $condition, ['limit' => 1]);
392 if (is_bool($stmt)) {
395 $retval = (DBA::numRows($stmt) > 0);
404 * Retrieve a single record from the item table for a given user and returns it in an associative array
406 * @param integer $uid User ID
407 * @param array $selected
408 * @param array $condition
409 * @param array $params
414 public static function selectFirstForUser($uid, array $selected = [], array $condition = [], $params = [])
416 $params['uid'] = $uid;
418 if (empty($selected)) {
419 $selected = Item::DISPLAY_FIELDLIST;
422 return self::selectFirst($selected, $condition, $params);
426 * Select rows from the item table for a given user
428 * @param integer $uid User ID
429 * @param array $selected Array of selected fields, empty for all
430 * @param array $condition Array of fields for condition
431 * @param array $params Array of several parameters
433 * @return boolean|object
436 public static function selectForUser($uid, array $selected = [], array $condition = [], $params = [])
438 $params['uid'] = $uid;
440 if (empty($selected)) {
441 $selected = Item::DISPLAY_FIELDLIST;
444 return self::select($selected, $condition, $params);
448 * Retrieve a single record from the item table and returns it in an associative array
450 * @param array $fields
451 * @param array $condition
452 * @param array $params
457 public static function selectFirst(array $fields = [], array $condition = [], $params = [])
459 $params['limit'] = 1;
461 $result = self::select($fields, $condition, $params);
463 if (is_bool($result)) {
466 $row = self::fetch($result);
473 * Select rows from the item table and returns them as an array
475 * @param array $selected Array of selected fields, empty for all
476 * @param array $condition Array of fields for condition
477 * @param array $params Array of several parameters
482 public static function selectToArray(array $fields = [], array $condition = [], $params = [])
484 $result = self::select($fields, $condition, $params);
486 if (is_bool($result)) {
491 while ($row = self::fetch($result)) {
500 * Select rows from the item table
502 * @param array $selected Array of selected fields, empty for all
503 * @param array $condition Array of fields for condition
504 * @param array $params Array of several parameters
506 * @return boolean|object
509 public static function select(array $selected = [], array $condition = [], $params = [])
514 if (isset($params['uid'])) {
515 $uid = $params['uid'];
519 $fields = self::fieldlist($usermode);
521 $select_fields = self::constructSelectFields($fields, $selected);
523 $condition_string = DBA::buildCondition($condition);
525 $condition_string = self::addTablesToFields($condition_string, $fields);
528 $condition_string = $condition_string . ' AND ' . self::condition(false);
531 $param_string = self::addTablesToFields(DBA::buildParameter($params), $fields);
533 $table = "`item` " . self::constructJoins($uid, $select_fields . $condition_string . $param_string, false, $usermode);
535 $sql = "SELECT " . $select_fields . " FROM " . $table . $condition_string . $param_string;
537 return DBA::p($sql, $condition);
541 * Select rows from the starting post in the item table
543 * @param integer $uid User ID
544 * @param array $selected
545 * @param array $condition Array of fields for condition
546 * @param array $params Array of several parameters
548 * @return boolean|object
551 public static function selectThreadForUser($uid, array $selected = [], array $condition = [], $params = [])
553 $params['uid'] = $uid;
555 if (empty($selected)) {
556 $selected = Item::DISPLAY_FIELDLIST;
559 return self::selectThread($selected, $condition, $params);
563 * Retrieve a single record from the starting post in the item table and returns it in an associative array
565 * @param integer $uid User ID
566 * @param array $selected
567 * @param array $condition
568 * @param array $params
573 public static function selectFirstThreadForUser($uid, array $selected = [], array $condition = [], $params = [])
575 $params['uid'] = $uid;
577 if (empty($selected)) {
578 $selected = Item::DISPLAY_FIELDLIST;
581 return self::selectFirstThread($selected, $condition, $params);
585 * Retrieve a single record from the starting post in the item table and returns it in an associative array
587 * @param array $fields
588 * @param array $condition
589 * @param array $params
594 public static function selectFirstThread(array $fields = [], array $condition = [], $params = [])
596 $params['limit'] = 1;
597 $result = self::selectThread($fields, $condition, $params);
599 if (is_bool($result)) {
602 $row = self::fetch($result);
609 * Select rows from the starting post in the item table
611 * @param array $selected Array of selected fields, empty for all
612 * @param array $condition Array of fields for condition
613 * @param array $params Array of several parameters
615 * @return boolean|object
618 public static function selectThread(array $selected = [], array $condition = [], $params = [])
623 if (isset($params['uid'])) {
624 $uid = $params['uid'];
628 $fields = self::fieldlist($usermode);
630 $fields['thread'] = ['mention', 'ignored', 'iid'];
632 $threadfields = ['thread' => ['iid', 'uid', 'contact-id', 'owner-id', 'author-id',
633 'created', 'edited', 'commented', 'received', 'changed', 'wall', 'private',
634 'pubmail', 'moderated', 'visible', 'starred', 'ignored', 'post-type',
635 'unseen', 'deleted', 'origin', 'forum_mode', 'mention', 'network']];
637 $select_fields = self::constructSelectFields($fields, $selected);
639 $condition_string = DBA::buildCondition($condition);
641 $condition_string = self::addTablesToFields($condition_string, $threadfields);
642 $condition_string = self::addTablesToFields($condition_string, $fields);
645 $condition_string = $condition_string . ' AND ' . self::condition(true);
648 $param_string = DBA::buildParameter($params);
649 $param_string = self::addTablesToFields($param_string, $threadfields);
650 $param_string = self::addTablesToFields($param_string, $fields);
652 $table = "`thread` " . self::constructJoins($uid, $select_fields . $condition_string . $param_string, true, $usermode);
654 $sql = "SELECT " . $select_fields . " FROM " . $table . $condition_string . $param_string;
656 return DBA::p($sql, $condition);
660 * Returns a list of fields that are associated with the item table
663 * @return array field list
665 private static function fieldlist($usermode)
669 $fields['item'] = ['id', 'uid', 'parent', 'uri', 'parent-uri', 'thr-parent',
670 'guid', 'uri-id', 'parent-uri-id', 'thr-parent-id',
671 'contact-id', 'owner-id', 'author-id', 'type', 'wall', 'gravity', 'extid',
672 'created', 'edited', 'commented', 'received', 'changed', 'psid',
673 'resource-id', 'event-id', 'attach', 'post-type', 'file',
674 'private', 'pubmail', 'moderated', 'visible', 'starred', 'bookmark',
675 'unseen', 'deleted', 'origin', 'forum_mode', 'mention', 'global',
676 'id' => 'item_id', 'network', 'icid', 'iaid',
677 'uri-id' => 'internal-uri-id', 'uid' => 'internal-uid',
678 'network' => 'internal-network', 'iaid' => 'internal-iaid', 'psid' => 'internal-psid'];
681 $fields['user-item'] = ['pinned', 'notification-type', 'ignored' => 'internal-user-ignored'];
684 $fields['item-activity'] = ['activity', 'activity' => 'internal-activity'];
686 $fields['item-content'] = array_merge(self::CONTENT_FIELDLIST, self::MIXED_CONTENT_FIELDLIST);
688 $fields['post-delivery-data'] = array_merge(Post\DeliveryData::LEGACY_FIELD_LIST, Post\DeliveryData::FIELD_LIST);
690 $fields['permissionset'] = ['allow_cid', 'allow_gid', 'deny_cid', 'deny_gid'];
692 $fields['author'] = ['url' => 'author-link', 'name' => 'author-name', 'addr' => 'author-addr',
693 'thumb' => 'author-avatar', 'nick' => 'author-nick', 'network' => 'author-network'];
695 $fields['owner'] = ['url' => 'owner-link', 'name' => 'owner-name', 'addr' => 'owner-addr',
696 'thumb' => 'owner-avatar', 'nick' => 'owner-nick', 'network' => 'owner-network'];
698 $fields['contact'] = ['url' => 'contact-link', 'name' => 'contact-name', 'thumb' => 'contact-avatar',
699 'writable', 'self', 'id' => 'cid', 'alias', 'uid' => 'contact-uid',
700 'photo', 'name-date', 'uri-date', 'avatar-date', 'thumb', 'dfrn-id'];
702 $fields['parent-item'] = ['guid' => 'parent-guid', 'network' => 'parent-network'];
704 $fields['parent-item-author'] = ['url' => 'parent-author-link', 'name' => 'parent-author-name'];
706 $fields['event'] = ['created' => 'event-created', 'edited' => 'event-edited',
707 'start' => 'event-start','finish' => 'event-finish',
708 'summary' => 'event-summary','desc' => 'event-desc',
709 'location' => 'event-location', 'type' => 'event-type',
710 'nofinish' => 'event-nofinish','adjust' => 'event-adjust',
711 'ignore' => 'event-ignore', 'id' => 'event-id'];
713 $fields['diaspora-interaction'] = ['interaction', 'interaction' => 'signed_text'];
719 * Returns SQL condition for the "select" functions
721 * @param boolean $thread_mode Called for the items (false) or for the threads (true)
723 * @return string SQL condition
725 private static function condition($thread_mode)
728 $master_table = "`thread`";
730 $master_table = "`item`";
732 return sprintf("$master_table.`visible` AND NOT $master_table.`deleted` AND NOT $master_table.`moderated`
733 AND (`user-item`.`hidden` IS NULL OR NOT `user-item`.`hidden`)
734 AND (`user-author`.`blocked` IS NULL OR NOT `user-author`.`blocked`)
735 AND (`user-author`.`ignored` IS NULL OR NOT `user-author`.`ignored` OR `item`.`gravity` != %d)
736 AND (`user-owner`.`blocked` IS NULL OR NOT `user-owner`.`blocked`)
737 AND (`user-owner`.`ignored` IS NULL OR NOT `user-owner`.`ignored` OR `item`.`gravity` != %d) ",
738 GRAVITY_PARENT, GRAVITY_PARENT);
742 * Returns all needed "JOIN" commands for the "select" functions
744 * @param integer $uid User ID
745 * @param string $sql_commands The parts of the built SQL commands in the "select" functions
746 * @param boolean $thread_mode Called for the items (false) or for the threads (true)
749 * @return string The SQL joins for the "select" functions
751 private static function constructJoins($uid, $sql_commands, $thread_mode, $user_mode)
754 $master_table = "`thread`";
755 $master_table_key = "`thread`.`iid`";
756 $joins = "STRAIGHT_JOIN `item` ON `item`.`id` = `thread`.`iid` ";
758 $master_table = "`item`";
759 $master_table_key = "`item`.`id`";
764 $joins .= sprintf("STRAIGHT_JOIN `contact` ON `contact`.`id` = $master_table.`contact-id`
765 AND NOT `contact`.`blocked`
766 AND ((NOT `contact`.`readonly` AND NOT `contact`.`pending` AND (`contact`.`rel` IN (%s, %s)))
767 OR `contact`.`self` OR `item`.`gravity` != %d OR `contact`.`uid` = 0)
768 STRAIGHT_JOIN `contact` AS `author` ON `author`.`id` = $master_table.`author-id` AND NOT `author`.`blocked`
769 STRAIGHT_JOIN `contact` AS `owner` ON `owner`.`id` = $master_table.`owner-id` AND NOT `owner`.`blocked`
770 LEFT JOIN `user-item` ON `user-item`.`iid` = $master_table_key AND `user-item`.`uid` = %d
771 LEFT JOIN `user-contact` AS `user-author` ON `user-author`.`cid` = $master_table.`author-id` AND `user-author`.`uid` = %d
772 LEFT JOIN `user-contact` AS `user-owner` ON `user-owner`.`cid` = $master_table.`owner-id` AND `user-owner`.`uid` = %d",
773 Contact::SHARING, Contact::FRIEND, GRAVITY_PARENT, intval($uid), intval($uid), intval($uid));
775 if (strpos($sql_commands, "`contact`.") !== false) {
776 $joins .= "LEFT JOIN `contact` ON `contact`.`id` = $master_table.`contact-id`";
778 if (strpos($sql_commands, "`author`.") !== false) {
779 $joins .= " LEFT JOIN `contact` AS `author` ON `author`.`id` = $master_table.`author-id`";
781 if (strpos($sql_commands, "`owner`.") !== false) {
782 $joins .= " LEFT JOIN `contact` AS `owner` ON `owner`.`id` = $master_table.`owner-id`";
786 if (strpos($sql_commands, "`group_member`.") !== false) {
787 $joins .= " STRAIGHT_JOIN `group_member` ON `group_member`.`contact-id` = $master_table.`contact-id`";
790 if (strpos($sql_commands, "`user`.") !== false) {
791 $joins .= " STRAIGHT_JOIN `user` ON `user`.`uid` = $master_table.`uid`";
794 if (strpos($sql_commands, "`event`.") !== false) {
795 $joins .= " LEFT JOIN `event` ON `event-id` = `event`.`id`";
798 if (strpos($sql_commands, "`diaspora-interaction`.") !== false) {
799 $joins .= " LEFT JOIN `diaspora-interaction` ON `diaspora-interaction`.`uri-id` = `item`.`uri-id`";
802 if (strpos($sql_commands, "`item-activity`.") !== false) {
803 $joins .= " LEFT JOIN `item-activity` ON `item-activity`.`uri-id` = `item`.`uri-id`";
806 if (strpos($sql_commands, "`item-content`.") !== false) {
807 $joins .= " LEFT JOIN `item-content` ON `item-content`.`uri-id` = `item`.`uri-id`";
810 if (strpos($sql_commands, "`post-delivery-data`.") !== false) {
811 $joins .= " LEFT JOIN `post-delivery-data` ON `post-delivery-data`.`uri-id` = `item`.`uri-id` AND `item`.`origin`";
814 if (strpos($sql_commands, "`permissionset`.") !== false) {
815 $joins .= " LEFT JOIN `permissionset` ON `permissionset`.`id` = `item`.`psid`";
818 if ((strpos($sql_commands, "`parent-item`.") !== false) || (strpos($sql_commands, "`parent-author`.") !== false)) {
819 $joins .= " STRAIGHT_JOIN `item` AS `parent-item` ON `parent-item`.`id` = `item`.`parent`";
822 if (strpos($sql_commands, "`parent-item-author`.") !== false) {
823 $joins .= " STRAIGHT_JOIN `contact` AS `parent-item-author` ON `parent-item-author`.`id` = `parent-item`.`author-id`";
830 * Add the field list for the "select" functions
832 * @param array $fields The field definition array
833 * @param array $selected The array with the selected fields from the "select" functions
835 * @return string The field list
837 private static function constructSelectFields(array $fields, array $selected)
839 if (!empty($selected)) {
840 $selected = array_merge($selected, ['internal-uri-id', 'internal-uid', 'internal-psid', 'internal-iaid', 'internal-network']);
843 if (in_array('verb', $selected)) {
844 $selected[] = 'internal-activity';
847 if (in_array('ignored', $selected)) {
848 $selected[] = 'internal-user-ignored';
851 $legacy_fields = array_merge(Post\DeliveryData::LEGACY_FIELD_LIST, self::MIXED_CONTENT_FIELDLIST);
854 foreach ($fields as $table => $table_fields) {
855 foreach ($table_fields as $field => $select) {
856 if (empty($selected) || in_array($select, $selected)) {
857 if (self::isLegacyMode() && in_array($select, $legacy_fields)) {
858 $selection[] = "`item`.`".$select."` AS `internal-item-" . $select . "`";
860 if (is_int($field)) {
861 $selection[] = "`" . $table . "`.`" . $select . "`";
863 $selection[] = "`" . $table . "`.`" . $field . "` AS `" . $select . "`";
868 return implode(", ", $selection);
872 * add table definition to fields in an SQL query
874 * @param string $query SQL query
875 * @param array $fields The field definition array
877 * @return string the changed SQL query
879 private static function addTablesToFields($query, $fields)
881 foreach ($fields as $table => $table_fields) {
882 foreach ($table_fields as $alias => $field) {
883 if (is_int($alias)) {
884 $replace_field = $field;
886 $replace_field = $alias;
889 $search = "/([^\.])`" . $field . "`/i";
890 $replace = "$1`" . $table . "`.`" . $replace_field . "`";
891 $query = preg_replace($search, $replace, $query);
898 * Update existing item entries
900 * @param array $fields The fields that are to be changed
901 * @param array $condition The condition for finding the item entries
903 * In the future we may have to change permissions as well.
904 * Then we had to add the user id as third parameter.
906 * A return value of "0" doesn't mean an error - but that 0 rows had been changed.
908 * @return integer|boolean number of affected rows - or "false" if there was an error
909 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
911 public static function update(array $fields, array $condition)
913 if (empty($condition) || empty($fields)) {
917 // To ensure the data integrity we do it in an transaction
920 // We cannot simply expand the condition to check for origin entries
921 // The condition needn't to be a simple array but could be a complex condition.
922 // And we have to execute this query before the update to ensure to fetch the same data.
923 $items = DBA::select('item', ['id', 'origin', 'uri', 'uri-id', 'iaid', 'icid', 'uid', 'file'], $condition);
925 $content_fields = [];
926 foreach (array_merge(self::CONTENT_FIELDLIST, self::MIXED_CONTENT_FIELDLIST) as $field) {
927 if (isset($fields[$field])) {
928 $content_fields[$field] = $fields[$field];
929 if (in_array($field, self::CONTENT_FIELDLIST) || !self::isLegacyMode()) {
930 unset($fields[$field]);
932 $fields[$field] = null;
937 $delivery_data = Post\DeliveryData::extractFields($fields);
939 $clear_fields = ['bookmark', 'type', 'author-name', 'author-avatar', 'author-link', 'owner-name', 'owner-avatar', 'owner-link', 'postopts', 'inform'];
940 foreach ($clear_fields as $field) {
941 if (array_key_exists($field, $fields)) {
942 $fields[$field] = null;
946 if (array_key_exists('file', $fields)) {
947 $files = $fields['file'];
948 $fields['file'] = null;
953 if (!empty($fields)) {
954 $success = DBA::update('item', $fields, $condition);
963 // When there is no content for the "old" item table, this will count the fetched items
964 $rows = DBA::affectedRows();
968 while ($item = DBA::fetch($items)) {
969 if (!empty($item['iaid']) || (!empty($content_fields['verb']) && (self::activityToIndex($content_fields['verb']) >= 0))) {
970 self::updateActivity($content_fields, ['uri-id' => $item['uri-id']]);
972 if (empty($item['iaid'])) {
973 $item_activity = DBA::selectFirst('item-activity', ['id'], ['uri-id' => $item['uri-id']]);
974 if (DBA::isResult($item_activity)) {
975 $item_fields = ['iaid' => $item_activity['id'], 'icid' => null];
976 foreach (self::MIXED_CONTENT_FIELDLIST as $field) {
977 if (self::isLegacyMode()) {
978 $item_fields[$field] = null;
980 unset($item_fields[$field]);
983 DBA::update('item', $item_fields, ['id' => $item['id']]);
985 if (!empty($item['icid']) && !DBA::exists('item', ['icid' => $item['icid']])) {
986 DBA::delete('item-content', ['id' => $item['icid']]);
989 } elseif (!empty($item['icid'])) {
990 DBA::update('item', ['icid' => null], ['id' => $item['id']]);
992 if (!DBA::exists('item', ['icid' => $item['icid']])) {
993 DBA::delete('item-content', ['id' => $item['icid']]);
997 self::updateContent($content_fields, ['uri-id' => $item['uri-id']]);
999 if (empty($item['icid'])) {
1000 $item_content = DBA::selectFirst('item-content', [], ['uri-id' => $item['uri-id']]);
1001 if (DBA::isResult($item_content)) {
1002 $item_fields = ['icid' => $item_content['id']];
1003 // Clear all fields in the item table that have a content in the item-content table
1004 foreach ($item_content as $field => $content) {
1005 if (in_array($field, self::MIXED_CONTENT_FIELDLIST) && !empty($item_content[$field])) {
1006 if (self::isLegacyMode()) {
1007 $item_fields[$field] = null;
1009 unset($item_fields[$field]);
1013 DBA::update('item', $item_fields, ['id' => $item['id']]);
1018 if (!is_null($files)) {
1019 Category::storeTextByURIId($item['uri-id'], $item['uid'], $files);
1020 if (!empty($item['file'])) {
1021 DBA::update('item', ['file' => ''], ['id' => $item['id']]);
1025 Post\DeliveryData::update($item['uri-id'], $delivery_data);
1027 self::updateThread($item['id']);
1029 // We only need to notfiy others when it is an original entry from us.
1030 // Only call the notifier when the item has some content relevant change.
1031 if ($item['origin'] && in_array('edited', array_keys($fields))) {
1032 $notify_items[] = $item['id'];
1039 foreach ($notify_items as $notify_item) {
1040 Worker::add(PRIORITY_HIGH, "Notifier", Delivery::POST, $notify_item);
1047 * Delete an item and notify others about it - if it was ours
1049 * @param array $condition The condition for finding the item entries
1050 * @param integer $priority Priority for the notification
1051 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1053 public static function markForDeletion($condition, $priority = PRIORITY_HIGH)
1055 $items = self::select(['id'], $condition);
1056 while ($item = self::fetch($items)) {
1057 self::markForDeletionById($item['id'], $priority);
1063 * Delete an item for an user and notify others about it - if it was ours
1065 * @param array $condition The condition for finding the item entries
1066 * @param integer $uid User who wants to delete this item
1067 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1069 public static function deleteForUser($condition, $uid)
1075 $items = self::select(['id', 'uid'], $condition);
1076 while ($item = self::fetch($items)) {
1077 // "Deleting" global items just means hiding them
1078 if ($item['uid'] == 0) {
1079 DBA::update('user-item', ['hidden' => true], ['iid' => $item['id'], 'uid' => $uid], true);
1081 // Delete notifications
1082 DBA::delete('notify', ['iid' => $item['id'], 'uid' => $uid]);
1083 } elseif ($item['uid'] == $uid) {
1084 self::markForDeletionById($item['id'], PRIORITY_HIGH);
1086 Logger::log('Wrong ownership. Not deleting item ' . $item['id']);
1093 * Mark an item for deletion, delete related data and notify others about it - if it was ours
1095 * @param integer $item_id
1096 * @param integer $priority Priority for the notification
1098 * @return boolean success
1099 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
1101 public static function markForDeletionById($item_id, $priority = PRIORITY_HIGH)
1103 Logger::info('Mark item for deletion by id', ['id' => $item_id, 'callstack' => System::callstack()]);
1104 // locate item to be deleted
1105 $fields = ['id', 'uri', 'uri-id', 'uid', 'parent', 'parent-uri', 'origin',
1106 'deleted', 'file', 'resource-id', 'event-id', 'attach',
1107 'verb', 'object-type', 'object', 'target', 'contact-id',
1108 'icid', 'iaid', 'psid'];
1109 $item = self::selectFirst($fields, ['id' => $item_id]);
1110 if (!DBA::isResult($item)) {
1111 Logger::info('Item not found.', ['id' => $item_id]);
1115 if ($item['deleted']) {
1116 Logger::info('Item has already been marked for deletion.', ['id' => $item_id]);
1120 $parent = self::selectFirst(['origin'], ['id' => $item['parent']]);
1121 if (!DBA::isResult($parent)) {
1122 $parent = ['origin' => false];
1125 // clean up categories and tags so they don't end up as orphans
1128 $cnt = preg_match_all('/<(.*?)>/', $item['file'], $matches, PREG_SET_ORDER);
1131 foreach ($matches as $mtch) {
1132 FileTag::unsaveFile($item['uid'], $item['id'], $mtch[1],true);
1138 $cnt = preg_match_all('/\[(.*?)\]/', $item['file'], $matches, PREG_SET_ORDER);
1141 foreach ($matches as $mtch) {
1142 FileTag::unsaveFile($item['uid'], $item['id'], $mtch[1],false);
1147 * If item is a link to a photo resource, nuke all the associated photos
1148 * (visitors will not have photo resources)
1149 * This only applies to photos uploaded from the photos page. Photos inserted into a post do not
1150 * generate a resource-id and therefore aren't intimately linked to the item.
1152 /// @TODO: this should first check if photo is used elsewhere
1153 if (strlen($item['resource-id'])) {
1154 Photo::delete(['resource-id' => $item['resource-id'], 'uid' => $item['uid']]);
1157 // If item is a link to an event, delete the event.
1158 if (intval($item['event-id'])) {
1159 Event::delete($item['event-id']);
1162 // If item has attachments, drop them
1163 /// @TODO: this should first check if attachment is used elsewhere
1164 foreach (explode(",", $item['attach']) as $attach) {
1165 preg_match("|attach/(\d+)|", $attach, $matches);
1166 if (is_array($matches) && count($matches) > 1) {
1167 Attach::delete(['id' => $matches[1], 'uid' => $item['uid']]);
1171 // Delete notifications
1172 DBA::delete('notify', ['iid' => $item['id'], 'uid' => $item['uid']]);
1174 // Set the item to "deleted"
1175 $item_fields = ['deleted' => true, 'edited' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()];
1176 DBA::update('item', $item_fields, ['id' => $item['id']]);
1178 Category::storeTextByURIId($item['uri-id'], $item['uid'], '');
1179 self::deleteThread($item['id'], $item['parent-uri']);
1181 if (!self::exists(["`uri` = ? AND `uid` != 0 AND NOT `deleted`", $item['uri']])) {
1182 self::markForDeletion(['uri' => $item['uri'], 'uid' => 0, 'deleted' => false], $priority);
1185 Post\DeliveryData::delete($item['uri-id']);
1187 // We don't delete the item-activity here, since we need some of the data for ActivityPub
1189 if (!empty($item['icid']) && !self::exists(['icid' => $item['icid'], 'deleted' => false])) {
1190 DBA::delete('item-content', ['id' => $item['icid']], ['cascade' => false]);
1192 // When the permission set will be used in photo and events as well,
1193 // this query here needs to be extended.
1194 // @todo Currently deactivated. We need the permission set in the deletion process.
1195 // This is a reminder to add the removal somewhere else.
1196 //if (!empty($item['psid']) && !self::exists(['psid' => $item['psid'], 'deleted' => false])) {
1197 // DBA::delete('permissionset', ['id' => $item['psid']], ['cascade' => false]);
1200 // If it's the parent of a comment thread, kill all the kids
1201 if ($item['id'] == $item['parent']) {
1202 self::markForDeletion(['parent' => $item['parent'], 'deleted' => false], $priority);
1205 // Is it our comment and/or our thread?
1206 if ($item['origin'] || $parent['origin']) {
1207 // When we delete the original post we will delete all existing copies on the server as well
1208 self::markForDeletion(['uri' => $item['uri'], 'deleted' => false], $priority);
1210 // send the notification upstream/downstream
1211 Worker::add(['priority' => $priority, 'dont_fork' => true], "Notifier", Delivery::DELETION, intval($item['id']));
1212 } elseif ($item['uid'] != 0) {
1214 // When we delete just our local user copy of an item, we have to set a marker to hide it
1215 $global_item = self::selectFirst(['id'], ['uri' => $item['uri'], 'uid' => 0, 'deleted' => false]);
1216 if (DBA::isResult($global_item)) {
1217 DBA::update('user-item', ['hidden' => true], ['iid' => $global_item['id'], 'uid' => $item['uid']], true);
1221 Logger::info('Item has been marked for deletion.', ['id' => $item_id]);
1227 private static function guid($item, $notify)
1229 if (!empty($item['guid'])) {
1230 return Strings::escapeTags(trim($item['guid']));
1234 // We have to avoid duplicates. So we create the GUID in form of a hash of the plink or uri.
1235 // We add the hash of our own host because our host is the original creator of the post.
1236 $prefix_host = DI::baseUrl()->getHostname();
1240 // We are only storing the post so we create a GUID from the original hostname.
1241 if (!empty($item['author-link'])) {
1242 $parsed = parse_url($item['author-link']);
1243 if (!empty($parsed['host'])) {
1244 $prefix_host = $parsed['host'];
1248 if (empty($prefix_host) && !empty($item['plink'])) {
1249 $parsed = parse_url($item['plink']);
1250 if (!empty($parsed['host'])) {
1251 $prefix_host = $parsed['host'];
1255 if (empty($prefix_host) && !empty($item['uri'])) {
1256 $parsed = parse_url($item['uri']);
1257 if (!empty($parsed['host'])) {
1258 $prefix_host = $parsed['host'];
1262 // Is it in the format data@host.tld? - Used for mail contacts
1263 if (empty($prefix_host) && !empty($item['author-link']) && strstr($item['author-link'], '@')) {
1264 $mailparts = explode('@', $item['author-link']);
1265 $prefix_host = array_pop($mailparts);
1269 if (!empty($item['plink'])) {
1270 $guid = self::guidFromUri($item['plink'], $prefix_host);
1271 } elseif (!empty($item['uri'])) {
1272 $guid = self::guidFromUri($item['uri'], $prefix_host);
1274 $guid = System::createUUID(hash('crc32', $prefix_host));
1280 private static function contactId($item)
1282 if (!empty($item['contact-id']) && DBA::exists('contact', ['self' => true, 'id' => $item['contact-id']])) {
1283 return $item['contact-id'];
1284 } elseif (($item['gravity'] == GRAVITY_PARENT) && !empty($item['uid']) && !empty($item['contact-id']) && Contact::isSharing($item['contact-id'], $item['uid'])) {
1285 return $item['contact-id'];
1286 } elseif (!empty($item['uid']) && !Contact::isSharing($item['author-id'], $item['uid'])) {
1287 return $item['author-id'];
1288 } elseif (!empty($item['contact-id'])) {
1289 return $item['contact-id'];
1291 $contact_id = Contact::getIdForURL($item['author-link'], $item['uid']);
1292 if (!empty($contact_id)) {
1296 return $item['author-id'];
1299 // This function will finally cover most of the preparation functionality in mod/item.php
1300 public static function prepare(&$item)
1303 * @TODO: Unused code triggering inspection errors
1305 $data = BBCode::getAttachmentData($item['body']);
1306 if ((preg_match_all("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $item['body'], $match, PREG_SET_ORDER) || isset($data["type"]))
1307 && ($posttype != Item::PT_PERSONAL_NOTE)) {
1308 $posttype = Item::PT_PAGE;
1309 $objecttype = ACTIVITY_OBJ_BOOKMARK;
1315 * Write an item array into a spool file to be inserted later.
1316 * This command is called whenever there are issues storing an item.
1318 * @param array $item The item fields that are to be inserted
1319 * @throws \Exception
1321 private static function spool($orig_item)
1323 // Now we store the data in the spool directory
1324 // We use "microtime" to keep the arrival order and "mt_rand" to avoid duplicates
1325 $file = 'item-' . round(microtime(true) * 10000) . '-' . mt_rand() . '.msg';
1327 $spoolpath = get_spoolpath();
1328 if ($spoolpath != "") {
1329 $spool = $spoolpath . '/' . $file;
1331 file_put_contents($spool, json_encode($orig_item));
1332 Logger::warning("Item wasn't stored - Item was spooled into file", ['file' => $file]);
1336 private static function isDuplicate($item)
1338 // Checking if there is already an item with the same guid
1339 $condition = ['guid' => $item['guid'], 'network' => $item['network'], 'uid' => $item['uid']];
1340 if (self::exists($condition)) {
1341 Logger::notice('Found already existing item', [
1342 'guid' => $item['guid'],
1343 'uid' => $item['uid'],
1344 'network' => $item['network']
1349 $condition = ["`uri` = ? AND `network` IN (?, ?) AND `uid` = ?",
1350 $item['uri'], $item['network'], Protocol::DFRN, $item['uid']];
1351 if (self::exists($condition)) {
1352 Logger::notice('duplicated item with the same uri found.', $item);
1356 // On Friendica and Diaspora the GUID is unique
1357 if (in_array($item['network'], [Protocol::DFRN, Protocol::DIASPORA])) {
1358 $condition = ['guid' => $item['guid'], 'uid' => $item['uid']];
1359 if (self::exists($condition)) {
1360 Logger::notice('duplicated item with the same guid found.', $item);
1363 } elseif ($item['network'] == Protocol::OSTATUS) {
1364 // Check for an existing post with the same content. There seems to be a problem with OStatus.
1365 $condition = ["`body` = ? AND `network` = ? AND `created` = ? AND `contact-id` = ? AND `uid` = ?",
1366 $item['body'], $item['network'], $item['created'], $item['contact-id'], $item['uid']];
1367 if (self::exists($condition)) {
1368 Logger::notice('duplicated item with the same body found.', $item);
1374 * Check for already added items.
1375 * There is a timing issue here that sometimes creates double postings.
1376 * An unique index would help - but the limitations of MySQL (maximum size of index values) prevent this.
1378 if (($item["uid"] == 0) && self::exists(['uri' => trim($item['uri']), 'uid' => 0])) {
1379 Logger::notice('Global item already stored.', ['uri' => $item['uri'], 'network' => $item['network']]);
1386 private static function validItem($item)
1388 // When there is no content then we don't post it
1389 if ($item['body'].$item['title'] == '') {
1390 Logger::notice('No body, no title.');
1394 // check for create date and expire time
1395 $expire_interval = DI::config()->get('system', 'dbclean-expire-days', 0);
1397 $user = DBA::selectFirst('user', ['expire'], ['uid' => $item['uid']]);
1398 if (DBA::isResult($user) && ($user['expire'] > 0) && (($user['expire'] < $expire_interval) || ($expire_interval == 0))) {
1399 $expire_interval = $user['expire'];
1402 if (($expire_interval > 0) && !empty($item['created'])) {
1403 $expire_date = time() - ($expire_interval * 86400);
1404 $created_date = strtotime($item['created']);
1405 if ($created_date < $expire_date) {
1406 Logger::notice('Item created before expiration interval.', [
1407 'created' => date('c', $created_date),
1408 'expired' => date('c', $expire_date),
1415 if (Contact::isBlocked($item['author-id'])) {
1416 Logger::notice('Author is blocked node-wide', ['author-link' => $item['author-link'], 'item-uri' => $item['uri']]);
1420 if (!empty($item['author-link']) && Network::isUrlBlocked($item['author-link'])) {
1421 Logger::notice('Author server is blocked', ['author-link' => $item['author-link'], 'item-uri' => $item['uri']]);
1425 if (!empty($item['uid']) && Contact::isBlockedByUser($item['author-id'], $item['uid'])) {
1426 Logger::notice('Author is blocked by user', ['author-link' => $item['author-link'], 'uid' => $item['uid'], 'item-uri' => $item['uri']]);
1430 if (Contact::isBlocked($item['owner-id'])) {
1431 Logger::notice('Owner is blocked node-wide', ['owner-link' => $item['owner-link'], 'item-uri' => $item['uri']]);
1435 if (!empty($item['owner-link']) && Network::isUrlBlocked($item['owner-link'])) {
1436 Logger::notice('Owner server is blocked', ['owner-link' => $item['owner-link'], 'item-uri' => $item['uri']]);
1440 if (!empty($item['uid']) && Contact::isBlockedByUser($item['owner-id'], $item['uid'])) {
1441 Logger::notice('Owner is blocked by user', ['owner-link' => $item['owner-link'], 'uid' => $item['uid'], 'item-uri' => $item['uri']]);
1445 // The causer is set during a thread completion, for example because of a reshare. It countains the responsible actor.
1446 if (!empty($item['uid']) && !empty($item['causer-id']) && Contact::isBlockedByUser($item['causer-id'], $item['uid'])) {
1447 Logger::notice('Causer is blocked by user', ['causer-link' => $item['causer-link'], 'uid' => $item['uid'], 'item-uri' => $item['uri']]);
1451 if (!empty($item['uid']) && !empty($item['causer-id']) && ($item['parent-uri'] == $item['uri']) && Contact::isIgnoredByUser($item['causer-id'], $item['uid'])) {
1452 Logger::notice('Causer is ignored by user', ['causer-link' => $item['causer-link'], 'uid' => $item['uid'], 'item-uri' => $item['uri']]);
1456 if ($item['verb'] == Activity::FOLLOW) {
1457 if (!$item['origin'] && ($item['author-id'] == Contact::getPublicIdByUserId($item['uid']))) {
1458 // Our own follow request can be relayed to us. We don't store it to avoid notification chaos.
1459 Logger::log("Follow: Don't store not origin follow request from us for " . $item['parent-uri'], Logger::DEBUG);
1463 $condition = ['verb' => Activity::FOLLOW, 'uid' => $item['uid'],
1464 'parent-uri' => $item['parent-uri'], 'author-id' => $item['author-id']];
1465 if (self::exists($condition)) {
1466 // It happens that we receive multiple follow requests by the same author - we only store one.
1467 Logger::log('Follow: Found existing follow request from author ' . $item['author-id'] . ' for ' . $item['parent-uri'], Logger::DEBUG);
1475 private static function getDuplicateID($item)
1477 if (empty($item['network']) || in_array($item['network'], Protocol::FEDERATED)) {
1478 $condition = ["`uri` = ? AND `uid` = ? AND `network` IN (?, ?, ?, ?)",
1479 trim($item['uri']), $item['uid'],
1480 Protocol::ACTIVITYPUB, Protocol::DIASPORA, Protocol::DFRN, Protocol::OSTATUS];
1481 $existing = self::selectFirst(['id', 'network'], $condition);
1482 if (DBA::isResult($existing)) {
1483 // We only log the entries with a different user id than 0. Otherwise we would have too many false positives
1484 if ($item['uid'] != 0) {
1485 Logger::notice('Item already existed for user', [
1486 'uri' => $item['uri'],
1487 'uid' => $item['uid'],
1488 'network' => $item['network'],
1489 'existing_id' => $existing["id"],
1490 'existing_network' => $existing["network"]
1494 return $existing["id"];
1500 private static function getParentData($item)
1502 // find the parent and snarf the item id and ACLs
1503 // and anything else we need to inherit
1505 $fields = ['uri', 'parent-uri', 'id', 'deleted',
1506 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
1507 'wall', 'private', 'forum_mode', 'origin', 'author-id'];
1508 $condition = ['uri' => $item['parent-uri'], 'uid' => $item['uid']];
1509 $params = ['order' => ['id' => false]];
1510 $parent = self::selectFirst($fields, $condition, $params);
1512 if (!DBA::isResult($parent)) {
1513 Logger::info('item parent was not found - ignoring item', ['parent-uri' => $item['parent-uri'], 'uid' => $item['uid']]);
1516 // is the new message multi-level threaded?
1517 // even though we don't support it now, preserve the info
1518 // and re-attach to the conversation parent.
1519 if ($parent['uri'] != $parent['parent-uri']) {
1520 $item['parent-uri'] = $parent['parent-uri'];
1522 $condition = ['uri' => $item['parent-uri'],
1523 'parent-uri' => $item['parent-uri'],
1524 'uid' => $item['uid']];
1525 $params = ['order' => ['id' => false]];
1526 $toplevel_parent = self::selectFirst($fields, $condition, $params);
1528 if (DBA::isResult($toplevel_parent)) {
1529 $parent = $toplevel_parent;
1533 $item["parent"] = $parent['id'];
1534 $item["deleted"] = $parent['deleted'];
1535 $item["allow_cid"] = $parent['allow_cid'];
1536 $item['allow_gid'] = $parent['allow_gid'];
1537 $item['deny_cid'] = $parent['deny_cid'];
1538 $item['deny_gid'] = $parent['deny_gid'];
1539 $item['parent_origin'] = $parent['origin'];
1541 // Don't federate received participation messages
1542 if ($item['verb'] != Activity::FOLLOW) {
1543 $item['wall'] = $parent['wall'];
1545 $item['wall'] = false;
1549 * If the parent is private, force privacy for the entire conversation
1550 * This differs from the above settings as it subtly allows comments from
1551 * email correspondents to be private even if the overall thread is not.
1553 if ($parent['private']) {
1554 $item['private'] = $parent['private'];
1558 * Edge case. We host a public forum that was originally posted to privately.
1559 * The original author commented, but as this is a comment, the permissions
1560 * weren't fixed up so it will still show the comment as private unless we fix it here.
1562 if ((intval($parent['forum_mode']) == 1) && ($parent['private'] != self::PUBLIC)) {
1563 $item['private'] = self::PUBLIC;
1566 // If its a post that originated here then tag the thread as "mention"
1567 if ($item['origin'] && $item['uid']) {
1568 DBA::update('thread', ['mention' => true], ['iid' => $item["parent"]]);
1569 Logger::info('tagged thread as mention', ['parent' => $item["parent"], 'uid' => $item['uid']]);
1572 // Update the contact relations
1573 if ($item['author-id'] != $parent['author-id']) {
1574 DBA::update('contact-relation', ['last-interaction' => $item['created']], ['cid' => $parent['author-id'], 'relation-cid' => $item['author-id']], true);
1581 private static function getGravity($item)
1583 $activity = DI::activity();
1585 if (isset($item['gravity'])) {
1586 return intval($item['gravity']);
1587 } elseif ($item['parent-uri'] === $item['uri']) {
1588 return GRAVITY_PARENT;
1589 } elseif ($activity->match($item['verb'], Activity::POST)) {
1590 return GRAVITY_COMMENT;
1591 } elseif ($activity->match($item['verb'], Activity::FOLLOW)) {
1592 return GRAVITY_ACTIVITY;
1594 Logger::info('Unknown gravity for verb', ['verb' => $item['verb']]);
1595 return GRAVITY_UNKNOWN; // Should not happen
1598 public static function insert($item, $dummy = false, $notify = false, $dontcache = false)
1602 $priority = PRIORITY_HIGH;
1604 // If it is a posting where users should get notifications, then define it as wall posting
1607 $item['origin'] = 1;
1608 $item['network'] = Protocol::DFRN;
1609 $item['protocol'] = Conversation::PARCEL_DFRN;
1611 if (is_int($notify)) {
1612 $priority = $notify;
1615 $item['network'] = trim(($item['network'] ?? '') ?: Protocol::PHANTOM);
1618 $uid = intval($item['uid']);
1620 $item['guid'] = self::guid($item, $notify);
1621 $item['uri'] = substr(Strings::escapeTags(trim(($item['uri'] ?? '') ?: self::newURI($item['uid'], $item['guid']))), 0, 255);
1624 $item['uri-id'] = ItemURI::insert(['uri' => $item['uri'], 'guid' => $item['guid']]);
1626 // Store conversation data
1627 $item = Conversation::insert($item);
1629 if (!empty($item['thr-parent'])) {
1630 $item['parent-uri'] = $item['thr-parent'];
1634 * Do we already have this item?
1635 * We have to check several networks since Friendica posts could be repeated
1636 * via OStatus (maybe Diasporsa as well)
1638 $duplicate = self::getDuplicateID($item);
1643 // Additional duplicate checks
1644 /// @todo Check why the first duplication check returns the item number and the second a 0
1645 if (self::isDuplicate($item)) {
1649 $item['wall'] = intval($item['wall'] ?? 0);
1650 $item['extid'] = trim($item['extid'] ?? '');
1651 $item['author-name'] = trim($item['author-name'] ?? '');
1652 $item['author-link'] = trim($item['author-link'] ?? '');
1653 $item['author-avatar'] = trim($item['author-avatar'] ?? '');
1654 $item['owner-name'] = trim($item['owner-name'] ?? '');
1655 $item['owner-link'] = trim($item['owner-link'] ?? '');
1656 $item['owner-avatar'] = trim($item['owner-avatar'] ?? '');
1657 $item['received'] = (isset($item['received']) ? DateTimeFormat::utc($item['received']) : DateTimeFormat::utcNow());
1658 $item['created'] = (isset($item['created']) ? DateTimeFormat::utc($item['created']) : $item['received']);
1659 $item['edited'] = (isset($item['edited']) ? DateTimeFormat::utc($item['edited']) : $item['created']);
1660 $item['changed'] = (isset($item['changed']) ? DateTimeFormat::utc($item['changed']) : $item['created']);
1661 $item['commented'] = (isset($item['commented']) ? DateTimeFormat::utc($item['commented']) : $item['created']);
1662 $item['title'] = substr(trim($item['title'] ?? ''), 0, 255);
1663 $item['location'] = trim($item['location'] ?? '');
1664 $item['coord'] = trim($item['coord'] ?? '');
1665 $item['visible'] = (isset($item['visible']) ? intval($item['visible']) : 1);
1666 $item['deleted'] = 0;
1667 $item['parent-uri'] = trim(($item['parent-uri'] ?? '') ?: $item['uri']);
1668 $item['post-type'] = ($item['post-type'] ?? '') ?: self::PT_ARTICLE;
1669 $item['verb'] = trim($item['verb'] ?? '');
1670 $item['object-type'] = trim($item['object-type'] ?? '');
1671 $item['object'] = trim($item['object'] ?? '');
1672 $item['target-type'] = trim($item['target-type'] ?? '');
1673 $item['target'] = trim($item['target'] ?? '');
1674 $item['plink'] = substr(trim($item['plink'] ?? ''), 0, 255);
1675 $item['allow_cid'] = trim($item['allow_cid'] ?? '');
1676 $item['allow_gid'] = trim($item['allow_gid'] ?? '');
1677 $item['deny_cid'] = trim($item['deny_cid'] ?? '');
1678 $item['deny_gid'] = trim($item['deny_gid'] ?? '');
1679 $item['private'] = intval($item['private'] ?? self::PUBLIC);
1680 $item['body'] = trim($item['body'] ?? '');
1681 $item['attach'] = trim($item['attach'] ?? '');
1682 $item['app'] = trim($item['app'] ?? '');
1683 $item['origin'] = intval($item['origin'] ?? 0);
1684 $item['postopts'] = trim($item['postopts'] ?? '');
1685 $item['resource-id'] = trim($item['resource-id'] ?? '');
1686 $item['event-id'] = intval($item['event-id'] ?? 0);
1687 $item['inform'] = trim($item['inform'] ?? '');
1688 $item['file'] = trim($item['file'] ?? '');
1690 self::addLanguageToItemArray($item);
1692 // Items cannot be stored before they happen ...
1693 if ($item['created'] > DateTimeFormat::utcNow()) {
1694 $item['created'] = DateTimeFormat::utcNow();
1697 // We haven't invented time travel by now.
1698 if ($item['edited'] > DateTimeFormat::utcNow()) {
1699 $item['edited'] = DateTimeFormat::utcNow();
1702 $item['plink'] = ($item['plink'] ?? '') ?: DI::baseUrl() . '/display/' . urlencode($item['guid']);
1704 $item['gravity'] = self::getGravity($item);
1706 $default = ['url' => $item['author-link'], 'name' => $item['author-name'],
1707 'photo' => $item['author-avatar'], 'network' => $item['network']];
1709 $item['author-id'] = ($item['author-id'] ?? 0) ?: Contact::getIdForURL($item['author-link'], 0, false, $default);
1711 unset($item['author-link']);
1712 unset($item['author-name']);
1713 unset($item['author-avatar']);
1714 unset($item['author-network']);
1716 $default = ['url' => $item['owner-link'], 'name' => $item['owner-name'],
1717 'photo' => $item['owner-avatar'], 'network' => $item['network']];
1719 $item['owner-id'] = ($item['owner-id'] ?? 0) ?: Contact::getIdForURL($item['owner-link'], 0, false, $default);
1721 unset($item['owner-link']);
1722 unset($item['owner-name']);
1723 unset($item['owner-avatar']);
1725 // The contact-id should be set before "self::insert" was called - but there seems to be issues sometimes
1726 $item["contact-id"] = self::contactId($item);
1728 if ($item['network'] == Protocol::PHANTOM) {
1729 $item['network'] = Protocol::DFRN;
1730 Logger::notice('Missing network, setting to {network}.', [
1731 'uri' => $item["uri"],
1732 'network' => $item['network'],
1733 'callstack' => System::callstack()
1737 if (!self::validItem($item)) {
1741 // We don't store the causer, we only have it here for the checks in the function above
1742 unset($item['causer-id']);
1743 unset($item['causer-link']);
1745 $item['thr-parent'] = $item['parent-uri'];
1747 if ($item['parent-uri'] != $item['uri']) {
1748 $item = self::getParentData($item);
1753 $parent_id = $item['parent'];
1754 unset($item['parent']);
1755 $parent_origin = $item['parent_origin'];
1756 unset($item['parent_origin']);
1759 $parent_origin = $item['origin'];
1762 $item['parent-uri-id'] = ItemURI::getIdByURI($item['parent-uri']);
1763 $item['thr-parent-id'] = ItemURI::getIdByURI($item['thr-parent']);
1765 // Is this item available in the global items (with uid=0)?
1766 if ($item["uid"] == 0) {
1767 $item["global"] = true;
1769 // Set the global flag on all items if this was a global item entry
1770 DBA::update('item', ['global' => true], ['uri' => $item["uri"]]);
1772 $item["global"] = self::exists(['uid' => 0, 'uri' => $item["uri"]]);
1776 if (!empty($item["allow_cid"] . $item["allow_gid"] . $item["deny_cid"] . $item["deny_gid"])) {
1777 $item["private"] = self::PRIVATE;
1781 $item['edit'] = false;
1782 $item['parent'] = $parent_id;
1783 Hook::callAll('post_local', $item);
1784 unset($item['edit']);
1785 unset($item['parent']);
1787 Hook::callAll('post_remote', $item);
1790 if (!empty($item['cancel'])) {
1791 Logger::log('post cancelled by addon.');
1795 if (empty($item['vid']) && !empty($item['verb'])) {
1796 $item['vid'] = Verb::getID($item['verb']);
1799 // Creates or assigns the permission set
1800 $item['psid'] = PermissionSet::getIdFromACL(
1808 unset($item['allow_cid']);
1809 unset($item['allow_gid']);
1810 unset($item['deny_cid']);
1811 unset($item['deny_gid']);
1813 // This array field is used to trigger some automatic reactions
1814 // It is mainly used in the "post_local" hook.
1815 unset($item['api_source']);
1817 // Filling item related side tables
1818 if (!empty($item['dsprsig'])) {
1819 $dsprsig = json_decode(base64_decode($item['dsprsig']));
1822 * Friendica servers lower than 3.4.3-2 had double encoded the signature ...
1823 * We can check for this condition when we decode and encode the stuff again.
1825 if (base64_encode(base64_decode(base64_decode($dsprsig->signature))) == base64_decode($dsprsig->signature)) {
1826 $dsprsig->signature = base64_decode($dsprsig->signature);
1827 Logger::log("Repaired double encoded signature from handle ".$dsprsig->signer, Logger::DEBUG);
1830 if (!empty($dsprsig->signed_text) && empty($dsprsig->signature) && empty($dsprsig->signer)) {
1831 DBA::insert('diaspora-interaction', ['uri-id' => $item['uri-id'], 'interaction' => $dsprsig->signed_text], true);
1835 unset($item['dsprsig']);
1837 if (!empty($item['diaspora_signed_text'])) {
1838 DBA::insert('diaspora-interaction', ['uri-id' => $item['uri-id'], 'interaction' => $item['diaspora_signed_text']], true);
1841 unset($item['diaspora_signed_text']);
1843 if (array_key_exists('file', $item) && !empty($item['file'])) {
1844 Category::storeTextByURIId($item['uri-id'], $item['uid'], $item['file']);
1847 unset($item['file']);
1849 $delivery_data = Post\DeliveryData::extractFields($item);
1850 unset($item['postopts']);
1851 unset($item['inform']);
1853 // Check for hashtags in the body and repair or add hashtag links
1854 self::setHashtags($item);
1856 // Store tags from the body if this hadn't been handled previously in the protocol classes
1857 if (!Tag::existsForPost($item['uri-id'])) {
1858 Tag::storeFromBody($item['uri-id'], $item['body']);
1861 // Fill the cache field
1862 self::putInCache($item);
1864 if (stristr($item['verb'], Activity::POKE)) {
1865 $notify_type = Delivery::POKE;
1867 $notify_type = Delivery::POST;
1870 // We are doing this outside of the transaction to avoid timing problems
1871 if (!self::insertActivity($item)) {
1872 self::insertContent($item);
1875 $like_no_comment = DI::config()->get('system', 'like_no_comment');
1878 $ret = DBA::insert('item', $item);
1880 // When the item was successfully stored we fetch the ID of the item.
1881 if (DBA::isResult($ret)) {
1882 $current_post = DBA::lastInsertId();
1884 // This can happen - for example - if there are locking timeouts.
1887 // Store the data into a spool file so that we can try again later.
1888 self::spool($orig_item);
1892 if ($current_post == 0) {
1893 // This is one of these error messages that never should occur.
1894 Logger::log("couldn't find created item - we better quit now.");
1899 // How much entries have we created?
1900 // We wouldn't need this query when we could use an unique index - but MySQL has length problems with them.
1901 $entries = DBA::count('item', ['uri' => $item['uri'], 'uid' => $item['uid'], 'network' => $item['network']]);
1904 // There are duplicates. We delete our just created entry.
1905 Logger::info('Delete duplicated item', ['id' => $current_post, 'uri' => $item['uri'], 'uid' => $item['uid'], 'guid' => $item['guid']]);
1907 // Yes, we could do a rollback here - but we possibly are still having users with MyISAM.
1908 DBA::delete('item', ['id' => $current_post]);
1911 } elseif ($entries == 0) {
1912 // This really should never happen since we quit earlier if there were problems.
1913 Logger::log("Something is terribly wrong. We haven't found our created entry.");
1918 Logger::log('created item '.$current_post);
1920 if (!$parent_id || ($item['parent-uri'] === $item['uri'])) {
1921 $parent_id = $current_post;
1925 DBA::update('item', ['parent' => $parent_id], ['id' => $current_post]);
1927 $item['id'] = $current_post;
1928 $item['parent'] = $parent_id;
1930 // update the commented timestamp on the parent
1931 // Only update "commented" if it is really a comment
1932 if (($item['gravity'] != GRAVITY_ACTIVITY) || !$like_no_comment) {
1933 DBA::update('item', ['commented' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
1935 DBA::update('item', ['changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
1938 if ($item['parent-uri'] === $item['uri']) {
1939 self::addThread($current_post);
1941 self::updateThread($parent_id);
1944 if (!empty($item['origin']) || !empty($item['wall']) || !empty($delivery_data['postopts']) || !empty($delivery_data['inform'])) {
1945 Post\DeliveryData::insert($item['uri-id'], $delivery_data);
1950 // In that function we check if this is a forum post. Additionally we delete the item under certain circumstances
1951 if (self::tagDeliver($item['uid'], $current_post)) {
1952 // Get the user information for the logging
1953 $user = User::getById($uid);
1955 Logger::notice('Item had been deleted', ['id' => $current_post, 'user' => $uid, 'account-type' => $user['account-type']]);
1960 $posted_item = self::selectFirst(self::ITEM_FIELDLIST, ['id' => $current_post]);
1961 if (DBA::isResult($posted_item)) {
1963 Hook::callAll('post_local_end', $posted_item);
1965 Hook::callAll('post_remote_end', $posted_item);
1968 Logger::log('new item not found in DB, id ' . $current_post);
1972 if ($item['parent-uri'] === $item['uri']) {
1973 self::addShadow($current_post);
1975 self::addShadowPost($current_post);
1978 self::updateContact($item);
1980 UserItem::setNotification($current_post);
1982 check_user_notification($current_post);
1984 $transmit = $notify || ($item['visible'] && ($parent_origin || $item['origin']));
1987 $transmit_item = Item::selectFirst(['verb', 'origin'], ['id' => $item['id']]);
1988 // Don't relay participation messages
1989 if (($transmit_item['verb'] == Activity::FOLLOW) &&
1990 (!$transmit_item['origin'] || ($item['author-id'] != Contact::getPublicIdByUserId($uid)))) {
1991 Logger::info('Participation messages will not be relayed', ['item' => $item['id'], 'uri' => $item['uri'], 'verb' => $transmit_item['verb']]);
1997 Worker::add(['priority' => $priority, 'dont_fork' => true], 'Notifier', $notify_type, $current_post);
2000 return $current_post;
2004 * Insert a new item content entry
2006 * @param array $item The item fields that are to be inserted
2008 * @throws \Exception
2010 private static function insertActivity(&$item)
2012 $activity_index = self::activityToIndex($item['verb']);
2014 if ($activity_index < 0) {
2018 $fields = ['activity' => $activity_index, 'uri-hash' => (string)$item['uri-id'], 'uri-id' => $item['uri-id']];
2020 // We just remove everything that is content
2021 foreach (array_merge(self::CONTENT_FIELDLIST, self::MIXED_CONTENT_FIELDLIST) as $field) {
2022 unset($item[$field]);
2025 // To avoid timing problems, we are using locks.
2026 $locked = DI::lock()->acquire('item_insert_activity');
2028 Logger::log("Couldn't acquire lock for URI " . $item['uri'] . " - proceeding anyway.");
2031 // Do we already have this content?
2032 $item_activity = DBA::selectFirst('item-activity', ['id'], ['uri-id' => $item['uri-id']]);
2033 if (DBA::isResult($item_activity)) {
2034 $item['iaid'] = $item_activity['id'];
2035 Logger::log('Fetched activity for URI ' . $item['uri'] . ' (' . $item['iaid'] . ')');
2036 } elseif (DBA::insert('item-activity', $fields)) {
2037 $item['iaid'] = DBA::lastInsertId();
2038 Logger::log('Inserted activity for URI ' . $item['uri'] . ' (' . $item['iaid'] . ')');
2040 // This shouldn't happen.
2041 Logger::log('Could not insert activity for URI ' . $item['uri'] . ' - should not happen');
2042 DI::lock()->release('item_insert_activity');
2046 DI::lock()->release('item_insert_activity');
2052 * Insert a new item content entry
2054 * @param array $item The item fields that are to be inserted
2055 * @throws \Exception
2057 private static function insertContent(&$item)
2059 $fields = ['uri-plink-hash' => (string)$item['uri-id'], 'uri-id' => $item['uri-id']];
2061 foreach (array_merge(self::CONTENT_FIELDLIST, self::MIXED_CONTENT_FIELDLIST) as $field) {
2062 if (isset($item[$field])) {
2063 $fields[$field] = $item[$field];
2064 unset($item[$field]);
2068 // To avoid timing problems, we are using locks.
2069 $locked = DI::lock()->acquire('item_insert_content');
2071 Logger::log("Couldn't acquire lock for URI " . $item['uri'] . " - proceeding anyway.");
2074 // Do we already have this content?
2075 $item_content = DBA::selectFirst('item-content', ['id'], ['uri-id' => $item['uri-id']]);
2076 if (DBA::isResult($item_content)) {
2077 $item['icid'] = $item_content['id'];
2078 Logger::log('Fetched content for URI ' . $item['uri'] . ' (' . $item['icid'] . ')');
2079 } elseif (DBA::insert('item-content', $fields)) {
2080 $item['icid'] = DBA::lastInsertId();
2081 Logger::log('Inserted content for URI ' . $item['uri'] . ' (' . $item['icid'] . ')');
2083 // This shouldn't happen.
2084 Logger::log('Could not insert content for URI ' . $item['uri'] . ' - should not happen');
2087 DI::lock()->release('item_insert_content');
2092 * Update existing item content entries
2094 * @param array $item The item fields that are to be changed
2095 * @param array $condition The condition for finding the item content entries
2097 * @throws \Exception
2099 private static function updateActivity($item, $condition)
2101 if (empty($item['verb'])) {
2104 $activity_index = self::activityToIndex($item['verb']);
2106 if ($activity_index < 0) {
2110 $fields = ['activity' => $activity_index];
2112 Logger::log('Update activity for ' . json_encode($condition));
2114 DBA::update('item-activity', $fields, $condition, true);
2120 * Update existing item content entries
2122 * @param array $item The item fields that are to be changed
2123 * @param array $condition The condition for finding the item content entries
2124 * @throws \Exception
2126 private static function updateContent($item, $condition)
2128 // We have to select only the fields from the "item-content" table
2130 foreach (array_merge(self::CONTENT_FIELDLIST, self::MIXED_CONTENT_FIELDLIST) as $field) {
2131 if (isset($item[$field])) {
2132 $fields[$field] = $item[$field];
2136 if (empty($fields)) {
2137 // when there are no fields at all, just use the condition
2138 // This is to ensure that we always store content.
2139 $fields = $condition;
2142 Logger::log('Update content for ' . json_encode($condition));
2144 DBA::update('item-content', $fields, $condition, true);
2148 * Distributes public items to the receivers
2150 * @param integer $itemid Item ID that should be added
2151 * @param string $signed_text Original text (for Diaspora signatures), JSON encoded.
2152 * @throws \Exception
2154 public static function distribute($itemid, $signed_text = '')
2156 $condition = ["`id` IN (SELECT `parent` FROM `item` WHERE `id` = ?)", $itemid];
2157 $parent = self::selectFirst(['owner-id'], $condition);
2158 if (!DBA::isResult($parent)) {
2162 // Only distribute public items from native networks
2163 $condition = ['id' => $itemid, 'uid' => 0,
2164 'network' => array_merge(Protocol::FEDERATED ,['']),
2165 'visible' => true, 'deleted' => false, 'moderated' => false, 'private' => [self::PUBLIC, self::UNLISTED]];
2166 $item = self::selectFirst(self::ITEM_FIELDLIST, $condition);
2167 if (!DBA::isResult($item)) {
2171 $origin = $item['origin'];
2174 unset($item['parent']);
2175 unset($item['mention']);
2176 unset($item['wall']);
2177 unset($item['origin']);
2178 unset($item['starred']);
2182 /// @todo add a field "pcid" in the contact table that referrs to the public contact id.
2183 $owner = DBA::selectFirst('contact', ['url', 'nurl', 'alias'], ['id' => $parent['owner-id']]);
2184 if (!DBA::isResult($owner)) {
2188 $condition = ['nurl' => $owner['nurl'], 'rel' => [Contact::SHARING, Contact::FRIEND]];
2189 $contacts = DBA::select('contact', ['uid'], $condition);
2190 while ($contact = DBA::fetch($contacts)) {
2191 if ($contact['uid'] == 0) {
2195 $users[$contact['uid']] = $contact['uid'];
2197 DBA::close($contacts);
2199 $condition = ['alias' => $owner['url'], 'rel' => [Contact::SHARING, Contact::FRIEND]];
2200 $contacts = DBA::select('contact', ['uid'], $condition);
2201 while ($contact = DBA::fetch($contacts)) {
2202 if ($contact['uid'] == 0) {
2206 $users[$contact['uid']] = $contact['uid'];
2208 DBA::close($contacts);
2210 if (!empty($owner['alias'])) {
2211 $condition = ['url' => $owner['alias'], 'rel' => [Contact::SHARING, Contact::FRIEND]];
2212 $contacts = DBA::select('contact', ['uid'], $condition);
2213 while ($contact = DBA::fetch($contacts)) {
2214 if ($contact['uid'] == 0) {
2218 $users[$contact['uid']] = $contact['uid'];
2220 DBA::close($contacts);
2225 if ($item['uri'] != $item['parent-uri']) {
2226 $parents = self::select(['uid', 'origin'], ["`uri` = ? AND `uid` != 0", $item['parent-uri']]);
2227 while ($parent = self::fetch($parents)) {
2228 $users[$parent['uid']] = $parent['uid'];
2229 if ($parent['origin'] && !$origin) {
2230 $origin_uid = $parent['uid'];
2235 foreach ($users as $uid) {
2236 if ($origin_uid == $uid) {
2237 $item['diaspora_signed_text'] = $signed_text;
2239 self::storeForUser($itemid, $item, $uid);
2244 * Store public items for the receivers
2246 * @param integer $itemid Item ID that should be added
2247 * @param array $item The item entry that will be stored
2248 * @param integer $uid The user that will receive the item entry
2249 * @throws \Exception
2251 private static function storeForUser($itemid, $item, $uid)
2253 $item['uid'] = $uid;
2254 $item['origin'] = 0;
2256 if ($item['uri'] == $item['parent-uri']) {
2257 $item['contact-id'] = Contact::getIdForURL($item['owner-link'], $uid);
2259 $item['contact-id'] = Contact::getIdForURL($item['author-link'], $uid);
2262 if (empty($item['contact-id'])) {
2263 $self = DBA::selectFirst('contact', ['id'], ['self' => true, 'uid' => $uid]);
2264 if (!DBA::isResult($self)) {
2267 $item['contact-id'] = $self['id'];
2270 /// @todo Handling of "event-id"
2273 if ($item['uri'] == $item['parent-uri']) {
2274 $contact = DBA::selectFirst('contact', [], ['id' => $item['contact-id'], 'self' => false]);
2275 if (DBA::isResult($contact)) {
2276 $notify = self::isRemoteSelf($contact, $item);
2280 $distributed = self::insert($item, false, $notify, true);
2282 if (!$distributed) {
2283 Logger::log("Distributed public item " . $itemid . " for user " . $uid . " wasn't stored", Logger::DEBUG);
2285 Logger::log("Distributed public item " . $itemid . " for user " . $uid . " with id " . $distributed, Logger::DEBUG);
2290 * Add a shadow entry for a given item id that is a thread starter
2292 * We store every public item entry additionally with the user id "0".
2293 * This is used for the community page and for the search.
2294 * It is planned that in the future we will store public item entries only once.
2296 * @param integer $itemid Item ID that should be added
2297 * @throws \Exception
2299 public static function addShadow($itemid)
2301 $fields = ['uid', 'private', 'moderated', 'visible', 'deleted', 'network', 'uri'];
2302 $condition = ['id' => $itemid, 'parent' => [0, $itemid]];
2303 $item = self::selectFirst($fields, $condition);
2305 if (!DBA::isResult($item)) {
2309 // is it already a copy?
2310 if (($itemid == 0) || ($item['uid'] == 0)) {
2314 // Is it a visible public post?
2315 if (!$item["visible"] || $item["deleted"] || $item["moderated"] || ($item["private"] == Item::PRIVATE)) {
2319 // is it an entry from a connector? Only add an entry for natively connected networks
2320 if (!in_array($item["network"], array_merge(Protocol::FEDERATED ,['']))) {
2324 if (self::exists(['uri' => $item['uri'], 'uid' => 0])) {
2328 $item = self::selectFirst(self::ITEM_FIELDLIST, ['id' => $itemid]);
2330 if (DBA::isResult($item)) {
2331 // Preparing public shadow (removing user specific data)
2334 unset($item['parent']);
2335 unset($item['wall']);
2336 unset($item['mention']);
2337 unset($item['origin']);
2338 unset($item['starred']);
2339 unset($item['postopts']);
2340 unset($item['inform']);
2341 if ($item['uri'] == $item['parent-uri']) {
2342 $item['contact-id'] = $item['owner-id'];
2344 $item['contact-id'] = $item['author-id'];
2347 $public_shadow = self::insert($item, false, false, true);
2349 Logger::log("Stored public shadow for thread ".$itemid." under id ".$public_shadow, Logger::DEBUG);
2354 * Add a shadow entry for a given item id that is a comment
2356 * This function does the same like the function above - but for comments
2358 * @param integer $itemid Item ID that should be added
2359 * @throws \Exception
2361 public static function addShadowPost($itemid)
2363 $item = self::selectFirst(self::ITEM_FIELDLIST, ['id' => $itemid]);
2364 if (!DBA::isResult($item)) {
2368 // Is it a toplevel post?
2369 if ($item['id'] == $item['parent']) {
2370 self::addShadow($itemid);
2374 // Is this a shadow entry?
2375 if ($item['uid'] == 0) {
2379 // Is there a shadow parent?
2380 if (!self::exists(['uri' => $item['parent-uri'], 'uid' => 0])) {
2384 // Is there already a shadow entry?
2385 if (self::exists(['uri' => $item['uri'], 'uid' => 0])) {
2389 // Save "origin" and "parent" state
2390 $origin = $item['origin'];
2391 $parent = $item['parent'];
2393 // Preparing public shadow (removing user specific data)
2396 unset($item['parent']);
2397 unset($item['wall']);
2398 unset($item['mention']);
2399 unset($item['origin']);
2400 unset($item['starred']);
2401 unset($item['postopts']);
2402 unset($item['inform']);
2403 $item['contact-id'] = Contact::getIdForURL($item['author-link']);
2405 $public_shadow = self::insert($item, false, false, true);
2407 Logger::log("Stored public shadow for comment ".$item['uri']." under id ".$public_shadow, Logger::DEBUG);
2409 // If this was a comment to a Diaspora post we don't get our comment back.
2410 // This means that we have to distribute the comment by ourselves.
2411 if ($origin && self::exists(['id' => $parent, 'network' => Protocol::DIASPORA])) {
2412 self::distribute($public_shadow);
2417 * Adds a language specification in a "language" element of given $arr.
2418 * Expects "body" element to exist in $arr.
2421 * @throws \Text_LanguageDetect_Exception
2423 private static function addLanguageToItemArray(&$item)
2425 $naked_body = BBCode::toPlaintext($item['body'], false);
2427 $ld = new Text_LanguageDetect();
2428 $ld->setNameMode(2);
2429 $languages = $ld->detect($naked_body, 3);
2431 if (is_array($languages)) {
2432 $item['language'] = json_encode($languages);
2437 * Creates an unique guid out of a given uri
2439 * @param string $uri uri of an item entry
2440 * @param string $host hostname for the GUID prefix
2441 * @return string unique guid
2443 public static function guidFromUri($uri, $host)
2445 // Our regular guid routine is using this kind of prefix as well
2446 // We have to avoid that different routines could accidentally create the same value
2447 $parsed = parse_url($uri);
2449 // We use a hash of the hostname as prefix for the guid
2450 $guid_prefix = hash("crc32", $host);
2452 // Remove the scheme to make sure that "https" and "http" doesn't make a difference
2453 unset($parsed["scheme"]);
2455 // Glue it together to be able to make a hash from it
2456 $host_id = implode("/", $parsed);
2458 // We could use any hash algorithm since it isn't a security issue
2459 $host_hash = hash("ripemd128", $host_id);
2461 return $guid_prefix.$host_hash;
2465 * generate an unique URI
2467 * @param integer $uid User id
2468 * @param string $guid An existing GUID (Otherwise it will be generated)
2471 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2473 public static function newURI($uid, $guid = "")
2476 $guid = System::createUUID();
2479 return DI::baseUrl()->get() . '/objects/' . $guid;
2483 * Set "success_update" and "last-item" to the date of the last time we heard from this contact
2485 * This can be used to filter for inactive contacts.
2486 * Only do this for public postings to avoid privacy problems, since poco data is public.
2487 * Don't set this value if it isn't from the owner (could be an author that we don't know)
2489 * @param array $arr Contains the just posted item record
2490 * @throws \Exception
2492 private static function updateContact($arr)
2494 // Unarchive the author
2495 $contact = DBA::selectFirst('contact', [], ['id' => $arr["author-id"]]);
2496 if (DBA::isResult($contact)) {
2497 Contact::unmarkForArchival($contact);
2500 // Unarchive the contact if it's not our own contact
2501 $contact = DBA::selectFirst('contact', [], ['id' => $arr["contact-id"], 'self' => false]);
2502 if (DBA::isResult($contact)) {
2503 Contact::unmarkForArchival($contact);
2506 /// @todo On private posts we could obfuscate the date
2507 $update = ($arr['private'] != self::PRIVATE);
2509 // Is it a forum? Then we don't care about the rules from above
2510 if (!$update && in_array($arr["network"], [Protocol::ACTIVITYPUB, Protocol::DFRN]) && ($arr["parent-uri"] === $arr["uri"])) {
2511 if (DBA::exists('contact', ['id' => $arr['contact-id'], 'forum' => true])) {
2517 // The "self" contact id is used (for example in the connectors) when the contact is unknown
2518 // So we have to ensure to only update the last item when it had been our own post,
2519 // or it had been done by a "regular" contact.
2520 if (!empty($arr['wall'])) {
2521 $condition = ['id' => $arr['contact-id']];
2523 $condition = ['id' => $arr['contact-id'], 'self' => false];
2525 DBA::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']], $condition);
2527 // Now do the same for the system wide contacts with uid=0
2528 if ($arr['private'] != self::PRIVATE) {
2529 DBA::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
2530 ['id' => $arr['owner-id']]);
2532 if ($arr['owner-id'] != $arr['author-id']) {
2533 DBA::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
2534 ['id' => $arr['author-id']]);
2539 public static function setHashtags(&$item)
2541 $tags = BBCode::getTags($item["body"]);
2544 if (!count($tags)) {
2548 // What happens in [code], stays in [code]!
2549 // escape the # and the [
2550 // hint: we will also get in trouble with #tags, when we want markdown in posts -> ### Headline 3
2551 $item["body"] = preg_replace_callback("/\[code(.*?)\](.*?)\[\/code\]/ism",
2553 // we truly ESCape all # and [ to prevent gettin weird tags in [code] blocks
2555 $replace = [chr(27).'sharp', chr(27).'leftsquarebracket'];
2556 return ("[code" . $match[1] . "]" . str_replace($find, $replace, $match[2]) . "[/code]");
2559 // This sorting is important when there are hashtags that are part of other hashtags
2560 // Otherwise there could be problems with hashtags like #test and #test2
2561 // Because of this we are sorting from the longest to the shortest tag.
2562 usort($tags, function($a, $b) {
2563 return strlen($b) <=> strlen($a);
2566 $URLSearchString = "^\[\]";
2568 // All hashtags should point to the home server if "local_tags" is activated
2569 if (DI::config()->get('system', 'local_tags')) {
2570 $item["body"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
2571 "#[url=".DI::baseUrl()."/search?tag=$2]$2[/url]", $item["body"]);
2574 // mask hashtags inside of url, bookmarks and attachments to avoid urls in urls
2575 $item["body"] = preg_replace_callback("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
2577 return ("[url=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/url]");
2580 $item["body"] = preg_replace_callback("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism",
2582 return ("[bookmark=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/bookmark]");
2585 $item["body"] = preg_replace_callback("/\[attachment (.*)\](.*?)\[\/attachment\]/ism",
2587 return ("[attachment " . str_replace("#", "#", $match[1]) . "]" . $match[2] . "[/attachment]");
2590 // Repair recursive urls
2591 $item["body"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
2592 "#$2", $item["body"]);
2594 foreach ($tags as $tag) {
2595 if ((strpos($tag, '#') !== 0) || strpos($tag, '[url=') || strlen($tag) < 2 || $tag[1] == '#') {
2599 $basetag = str_replace('_',' ',substr($tag,1));
2600 $newtag = '#[url=' . DI::baseUrl() . '/search?tag=' . $basetag . ']' . $basetag . '[/url]';
2602 $item["body"] = str_replace($tag, $newtag, $item["body"]);
2605 // Convert back the masked hashtags
2606 $item["body"] = str_replace("#", "#", $item["body"]);
2608 // Remember! What happens in [code], stays in [code]
2609 // roleback the # and [
2610 $item["body"] = preg_replace_callback("/\[code(.*?)\](.*?)\[\/code\]/ism",
2612 // we truly unESCape all sharp and leftsquarebracket
2613 $find = [chr(27).'sharp', chr(27).'leftsquarebracket'];
2614 $replace = ['#', '['];
2615 return ("[code" . $match[1] . "]" . str_replace($find, $replace, $match[2]) . "[/code]");
2620 * look for mention tags and setup a second delivery chain for forum/community posts if appropriate
2623 * @param int $item_id
2624 * @return boolean true if item was deleted, else false
2625 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2626 * @throws \ImagickException
2628 private static function tagDeliver($uid, $item_id)
2632 $user = DBA::selectFirst('user', [], ['uid' => $uid]);
2633 if (!DBA::isResult($user)) {
2637 $community_page = (($user['page-flags'] == User::PAGE_FLAGS_COMMUNITY) ? true : false);
2638 $prvgroup = (($user['page-flags'] == User::PAGE_FLAGS_PRVGROUP) ? true : false);
2640 $item = self::selectFirst(self::ITEM_FIELDLIST, ['id' => $item_id]);
2641 if (!DBA::isResult($item)) {
2645 $link = Strings::normaliseLink(DI::baseUrl() . '/profile/' . $user['nickname']);
2648 * Diaspora uses their own hardwired link URL in @-tags
2649 * instead of the one we supply with webfinger
2651 $dlink = Strings::normaliseLink(DI::baseUrl() . '/u/' . $user['nickname']);
2653 $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism', $item['body'], $matches, PREG_SET_ORDER);
2655 foreach ($matches as $mtch) {
2656 if (Strings::compareLink($link, $mtch[1]) || Strings::compareLink($dlink, $mtch[1])) {
2658 Logger::log('mention found: ' . $mtch[2]);
2664 if (($community_page || $prvgroup) &&
2665 !$item['wall'] && !$item['origin'] && ($item['id'] == $item['parent'])) {
2666 Logger::info('Delete private group/communiy top-level item without mention', ['id' => $item_id, 'guid'=> $item['guid']]);
2667 DBA::delete('item', ['id' => $item_id]);
2673 $arr = ['item' => $item, 'user' => $user];
2675 Hook::callAll('tagged', $arr);
2677 if (!$community_page && !$prvgroup) {
2682 * tgroup delivery - setup a second delivery chain
2683 * prevent delivery looping - only proceed
2684 * if the message originated elsewhere and is a top-level post
2686 if ($item['wall'] || $item['origin'] || ($item['id'] != $item['parent'])) {
2690 // now change this copy of the post to a forum head message and deliver to all the tgroup members
2691 $self = DBA::selectFirst('contact', ['id', 'name', 'url', 'thumb'], ['uid' => $uid, 'self' => true]);
2692 if (!DBA::isResult($self)) {
2696 $owner_id = Contact::getIdForURL($self['url']);
2698 // also reset all the privacy bits to the forum default permissions
2700 $private = ($user['allow_cid'] || $user['allow_gid'] || $user['deny_cid'] || $user['deny_gid']) ? self::PRIVATE : self::PUBLIC;
2702 $psid = PermissionSet::getIdFromACL(
2710 $forum_mode = ($prvgroup ? 2 : 1);
2712 $fields = ['wall' => true, 'origin' => true, 'forum_mode' => $forum_mode, 'contact-id' => $self['id'],
2713 'owner-id' => $owner_id, 'private' => $private, 'psid' => $psid];
2714 self::update($fields, ['id' => $item_id]);
2716 self::updateThread($item_id);
2718 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], 'Notifier', Delivery::POST, $item_id);
2723 public static function isRemoteSelf($contact, &$datarray)
2725 if (!$contact['remote_self']) {
2729 // Prevent the forwarding of posts that are forwarded
2730 if (!empty($datarray["extid"]) && ($datarray["extid"] == Protocol::DFRN)) {
2731 Logger::log('Already forwarded', Logger::DEBUG);
2735 // Prevent to forward already forwarded posts
2736 if ($datarray["app"] == DI::baseUrl()->getHostname()) {
2737 Logger::log('Already forwarded (second test)', Logger::DEBUG);
2741 // Only forward posts
2742 if ($datarray["verb"] != Activity::POST) {
2743 Logger::log('No post', Logger::DEBUG);
2747 if (($contact['network'] != Protocol::FEED) && ($datarray['private'] == self::PRIVATE)) {
2748 Logger::log('Not public', Logger::DEBUG);
2752 $datarray2 = $datarray;
2753 Logger::log('remote-self start - Contact '.$contact['url'].' - '.$contact['remote_self'].' Item '.print_r($datarray, true), Logger::DEBUG);
2754 if ($contact['remote_self'] == 2) {
2755 $self = DBA::selectFirst('contact', ['id', 'name', 'url', 'thumb'],
2756 ['uid' => $contact['uid'], 'self' => true]);
2757 if (DBA::isResult($self)) {
2758 $datarray['contact-id'] = $self["id"];
2760 $datarray['owner-name'] = $self["name"];
2761 $datarray['owner-link'] = $self["url"];
2762 $datarray['owner-avatar'] = $self["thumb"];
2764 $datarray['author-name'] = $datarray['owner-name'];
2765 $datarray['author-link'] = $datarray['owner-link'];
2766 $datarray['author-avatar'] = $datarray['owner-avatar'];
2768 unset($datarray['edited']);
2770 unset($datarray['network']);
2771 unset($datarray['owner-id']);
2772 unset($datarray['author-id']);
2775 if ($contact['network'] != Protocol::FEED) {
2776 $datarray["guid"] = System::createUUID();
2777 unset($datarray["plink"]);
2778 $datarray["uri"] = self::newURI($contact['uid'], $datarray["guid"]);
2779 $datarray["parent-uri"] = $datarray["uri"];
2780 $datarray["thr-parent"] = $datarray["uri"];
2781 $datarray["extid"] = Protocol::DFRN;
2782 $urlpart = parse_url($datarray2['author-link']);
2783 $datarray["app"] = $urlpart["host"];
2785 $datarray['private'] = self::PUBLIC;
2789 if ($contact['network'] != Protocol::FEED) {
2790 // Store the original post
2791 $result = self::insert($datarray2, false, false);
2792 Logger::log('remote-self post original item - Contact '.$contact['url'].' return '.$result.' Item '.print_r($datarray2, true), Logger::DEBUG);
2794 $datarray["app"] = "Feed";
2798 // Trigger automatic reactions for addons
2799 $datarray['api_source'] = true;
2801 // We have to tell the hooks who we are - this really should be improved
2802 $_SESSION["authenticated"] = true;
2803 $_SESSION["uid"] = $contact['uid'];
2812 * @param array $item
2815 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
2816 * @throws \ImagickException
2818 public static function fixPrivatePhotos($s, $uid, $item = null, $cid = 0)
2820 if (DI::config()->get('system', 'disable_embedded')) {
2824 Logger::log('check for photos', Logger::DEBUG);
2825 $site = substr(DI::baseUrl(), strpos(DI::baseUrl(), '://'));
2830 $img_start = strpos($orig_body, '[img');
2831 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
2832 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
2834 while (($img_st_close !== false) && ($img_len !== false)) {
2835 $img_st_close++; // make it point to AFTER the closing bracket
2836 $image = substr($orig_body, $img_start + $img_st_close, $img_len);
2838 Logger::log('found photo ' . $image, Logger::DEBUG);
2840 if (stristr($image, $site . '/photo/')) {
2841 // Only embed locally hosted photos
2843 $i = basename($image);
2844 $i = str_replace(['.jpg', '.png', '.gif'], ['', '', ''], $i);
2845 $x = strpos($i, '-');
2848 $res = substr($i, $x + 1);
2849 $i = substr($i, 0, $x);
2850 $photo = Photo::getPhotoForUser($uid, $i, $res);
2851 if (DBA::isResult($photo)) {
2853 * Check to see if we should replace this photo link with an embedded image
2854 * 1. No need to do so if the photo is public
2855 * 2. If there's a contact-id provided, see if they're in the access list
2856 * for the photo. If so, embed it.
2857 * 3. Otherwise, if we have an item, see if the item permissions match the photo
2858 * permissions, regardless of order but first check to see if they're an exact
2859 * match to save some processing overhead.
2861 if (self::hasPermissions($photo)) {
2863 $recips = self::enumeratePermissions($photo);
2864 if (in_array($cid, $recips)) {
2868 if (self::samePermissions($uid, $item, $photo)) {
2874 $photo_img = Photo::getImageForPhoto($photo);
2875 // If a custom width and height were specified, apply before embedding
2876 if (preg_match("/\[img\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
2877 Logger::log('scaling photo', Logger::DEBUG);
2879 $width = intval($match[1]);
2880 $height = intval($match[2]);
2882 $photo_img->scaleDown(max($width, $height));
2885 $data = $photo_img->asString();
2886 $type = $photo_img->getType();
2888 Logger::log('replacing photo', Logger::DEBUG);
2889 $image = 'data:' . $type . ';base64,' . base64_encode($data);
2890 Logger::log('replaced: ' . $image, Logger::DATA);
2896 $new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/img]';
2897 $orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/img]'));
2898 if ($orig_body === false) {
2902 $img_start = strpos($orig_body, '[img');
2903 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
2904 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
2907 $new_body = $new_body . $orig_body;
2912 private static function hasPermissions($obj)
2914 return !empty($obj['allow_cid']) || !empty($obj['allow_gid']) ||
2915 !empty($obj['deny_cid']) || !empty($obj['deny_gid']);
2918 private static function samePermissions($uid, $obj1, $obj2)
2920 // first part is easy. Check that these are exactly the same.
2921 if (($obj1['allow_cid'] == $obj2['allow_cid'])
2922 && ($obj1['allow_gid'] == $obj2['allow_gid'])
2923 && ($obj1['deny_cid'] == $obj2['deny_cid'])
2924 && ($obj1['deny_gid'] == $obj2['deny_gid'])) {
2928 // This is harder. Parse all the permissions and compare the resulting set.
2929 $recipients1 = self::enumeratePermissions($obj1);
2930 $recipients2 = self::enumeratePermissions($obj2);
2934 /// @TODO Comparison of arrays, maybe use array_diff_assoc() here?
2935 return ($recipients1 == $recipients2);
2939 * Returns an array of contact-ids that are allowed to see this object
2941 * @param array $obj Item array with at least uid, allow_cid, allow_gid, deny_cid and deny_gid
2942 * @param bool $check_dead Prunes unavailable contacts from the result
2944 * @throws \Exception
2946 public static function enumeratePermissions(array $obj, bool $check_dead = false)
2948 $aclFormater = DI::aclFormatter();
2950 $allow_people = $aclFormater->expand($obj['allow_cid']);
2951 $allow_groups = Group::expand($obj['uid'], $aclFormater->expand($obj['allow_gid']), $check_dead);
2952 $deny_people = $aclFormater->expand($obj['deny_cid']);
2953 $deny_groups = Group::expand($obj['uid'], $aclFormater->expand($obj['deny_gid']), $check_dead);
2954 $recipients = array_unique(array_merge($allow_people, $allow_groups));
2955 $deny = array_unique(array_merge($deny_people, $deny_groups));
2956 $recipients = array_diff($recipients, $deny);
2960 public static function expire($uid, $days, $network = "", $force = false)
2962 if (!$uid || ($days < 1)) {
2966 $condition = ["`uid` = ? AND NOT `deleted` AND `id` = `parent` AND `gravity` = ?",
2967 $uid, GRAVITY_PARENT];
2970 * $expire_network_only = save your own wall posts
2971 * and just expire conversations started by others
2973 $expire_network_only = DI::pConfig()->get($uid, 'expire', 'network_only', false);
2975 if ($expire_network_only) {
2976 $condition[0] .= " AND NOT `wall`";
2979 if ($network != "") {
2980 $condition[0] .= " AND `network` = ?";
2981 $condition[] = $network;
2984 $condition[0] .= " AND `received` < UTC_TIMESTAMP() - INTERVAL ? DAY";
2985 $condition[] = $days;
2987 $items = self::select(['file', 'resource-id', 'starred', 'type', 'id', 'post-type'], $condition);
2989 if (!DBA::isResult($items)) {
2993 $expire_items = DI::pConfig()->get($uid, 'expire', 'items', true);
2995 // Forcing expiring of items - but not notes and marked items
2997 $expire_items = true;
3000 $expire_notes = DI::pConfig()->get($uid, 'expire', 'notes', true);
3001 $expire_starred = DI::pConfig()->get($uid, 'expire', 'starred', true);
3002 $expire_photos = DI::pConfig()->get($uid, 'expire', 'photos', false);
3006 while ($item = Item::fetch($items)) {
3007 // don't expire filed items
3009 if (strpos($item['file'], '[') !== false) {
3013 // Only expire posts, not photos and photo comments
3015 if (!$expire_photos && strlen($item['resource-id'])) {
3017 } elseif (!$expire_starred && intval($item['starred'])) {
3019 } elseif (!$expire_notes && (($item['type'] == 'note') || ($item['post-type'] == Item::PT_PERSONAL_NOTE))) {
3021 } elseif (!$expire_items && ($item['type'] != 'note') && ($item['post-type'] != Item::PT_PERSONAL_NOTE)) {
3025 self::markForDeletionById($item['id'], PRIORITY_LOW);
3030 Logger::log('User ' . $uid . ": expired $expired items; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
3033 public static function firstPostDate($uid, $wall = false)
3035 $condition = ['uid' => $uid, 'wall' => $wall, 'deleted' => false, 'visible' => true, 'moderated' => false];
3036 $params = ['order' => ['received' => false]];
3037 $thread = DBA::selectFirst('thread', ['received'], $condition, $params);
3038 if (DBA::isResult($thread)) {
3039 return substr(DateTimeFormat::local($thread['received']), 0, 10);
3045 * add/remove activity to an item
3047 * Toggle activities as like,dislike,attend of an item
3049 * @param string $item_id
3050 * @param string $verb
3051 * Activity verb. One of
3052 * like, unlike, dislike, undislike, attendyes, unattendyes,
3053 * attendno, unattendno, attendmaybe, unattendmaybe
3055 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3056 * @throws \ImagickException
3057 * @hook 'post_local_end'
3059 * 'post_id' => ID of posted item
3061 public static function performActivity($item_id, $verb)
3063 if (!Session::isAuthenticated()) {
3070 $activity = Activity::LIKE;
3074 $activity = Activity::DISLIKE;
3078 $activity = Activity::ATTEND;
3082 $activity = Activity::ATTENDNO;
3085 case 'unattendmaybe':
3086 $activity = Activity::ATTENDMAYBE;
3090 $activity = Activity::FOLLOW;
3093 Logger::log('like: unknown verb ' . $verb . ' for item ' . $item_id);
3097 // Enable activity toggling instead of on/off
3098 $event_verb_flag = $activity === Activity::ATTEND || $activity === Activity::ATTENDNO || $activity === Activity::ATTENDMAYBE;
3100 Logger::log('like: verb ' . $verb . ' item ' . $item_id);
3102 $item = self::selectFirst(self::ITEM_FIELDLIST, ['`id` = ? OR `uri` = ?', $item_id, $item_id]);
3103 if (!DBA::isResult($item)) {
3104 Logger::log('like: unknown item ' . $item_id);
3108 $item_uri = $item['uri'];
3110 $uid = $item['uid'];
3111 if (($uid == 0) && local_user()) {
3112 $uid = local_user();
3115 if (!Security::canWriteToUserWall($uid)) {
3116 Logger::log('like: unable to write on wall ' . $uid);
3120 // Retrieves the local post owner
3121 $owner_self_contact = DBA::selectFirst('contact', [], ['uid' => $uid, 'self' => true]);
3122 if (!DBA::isResult($owner_self_contact)) {
3123 Logger::log('like: unknown owner ' . $uid);
3127 // Retrieve the current logged in user's public contact
3128 $author_id = public_contact();
3130 $author_contact = DBA::selectFirst('contact', ['url'], ['id' => $author_id]);
3131 if (!DBA::isResult($author_contact)) {
3132 Logger::log('like: unknown author ' . $author_id);
3136 // Contact-id is the uid-dependant author contact
3137 if (local_user() == $uid) {
3138 $item_contact_id = $owner_self_contact['id'];
3140 $item_contact_id = Contact::getIdForURL($author_contact['url'], $uid, true);
3141 $item_contact = DBA::selectFirst('contact', [], ['id' => $item_contact_id]);
3142 if (!DBA::isResult($item_contact)) {
3143 Logger::log('like: unknown item contact ' . $item_contact_id);
3148 // Look for an existing verb row
3149 // event participation are essentially radio toggles. If you make a subsequent choice,
3150 // we need to eradicate your first choice.
3151 if ($event_verb_flag) {
3152 $verbs = [Activity::ATTEND, Activity::ATTENDNO, Activity::ATTENDMAYBE];
3154 // Translate to the index based activity index
3156 foreach ($verbs as $verb) {
3157 $activities[] = self::activityToIndex($verb);
3160 $activities = self::activityToIndex($activity);
3163 $condition = ['activity' => $activities, 'deleted' => false, 'gravity' => GRAVITY_ACTIVITY,
3164 'author-id' => $author_id, 'uid' => $item['uid'], 'thr-parent' => $item_uri];
3166 $like_item = self::selectFirst(['id', 'guid', 'verb'], $condition);
3168 // If it exists, mark it as deleted
3169 if (DBA::isResult($like_item)) {
3170 self::markForDeletionById($like_item['id']);
3172 if (!$event_verb_flag || $like_item['verb'] == $activity) {
3177 // Verb is "un-something", just trying to delete existing entries
3178 if (strpos($verb, 'un') === 0) {
3182 $objtype = $item['resource-id'] ? Activity\ObjectType::IMAGE : Activity\ObjectType::NOTE;
3185 'guid' => System::createUUID(),
3186 'uri' => self::newURI($item['uid']),
3187 'uid' => $item['uid'],
3188 'contact-id' => $item_contact_id,
3189 'wall' => $item['wall'],
3191 'network' => Protocol::DFRN,
3192 'gravity' => GRAVITY_ACTIVITY,
3193 'parent' => $item['id'],
3194 'parent-uri' => $item['uri'],
3195 'thr-parent' => $item['uri'],
3196 'owner-id' => $author_id,
3197 'author-id' => $author_id,
3198 'body' => $activity,
3199 'verb' => $activity,
3200 'object-type' => $objtype,
3201 'allow_cid' => $item['allow_cid'],
3202 'allow_gid' => $item['allow_gid'],
3203 'deny_cid' => $item['deny_cid'],
3204 'deny_gid' => $item['deny_gid'],
3209 $signed = Diaspora::createLikeSignature($uid, $new_item);
3210 if (!empty($signed)) {
3211 $new_item['diaspora_signed_text'] = json_encode($signed);
3214 $new_item_id = self::insert($new_item);
3216 // If the parent item isn't visible then set it to visible
3217 if (!$item['visible']) {
3218 self::update(['visible' => true], ['id' => $item['id']]);
3221 $new_item['id'] = $new_item_id;
3223 Hook::callAll('post_local_end', $new_item);
3228 private static function addThread($itemid, $onlyshadow = false)
3230 $fields = ['uid', 'created', 'edited', 'commented', 'received', 'changed', 'wall', 'private', 'pubmail',
3231 'moderated', 'visible', 'starred', 'contact-id', 'post-type',
3232 'deleted', 'origin', 'forum_mode', 'mention', 'network', 'author-id', 'owner-id'];
3233 $condition = ["`id` = ? AND (`parent` = ? OR `parent` = 0)", $itemid, $itemid];
3234 $item = self::selectFirst($fields, $condition);
3236 if (!DBA::isResult($item)) {
3240 $item['iid'] = $itemid;
3243 $result = DBA::insert('thread', $item);
3245 Logger::log("Add thread for item ".$itemid." - ".print_r($result, true), Logger::DEBUG);
3249 private static function updateThread($itemid, $setmention = false)
3251 $fields = ['uid', 'guid', 'created', 'edited', 'commented', 'received', 'changed', 'post-type',
3252 'wall', 'private', 'pubmail', 'moderated', 'visible', 'starred', 'contact-id',
3253 'deleted', 'origin', 'forum_mode', 'network', 'author-id', 'owner-id'];
3254 $condition = ["`id` = ? AND (`parent` = ? OR `parent` = 0)", $itemid, $itemid];
3256 $item = self::selectFirst($fields, $condition);
3257 if (!DBA::isResult($item)) {
3262 $item["mention"] = 1;
3267 foreach ($item as $field => $data) {
3268 if (!in_array($field, ["guid"])) {
3269 $fields[$field] = $data;
3273 $result = DBA::update('thread', $fields, ['iid' => $itemid]);
3275 Logger::log("Update thread for item ".$itemid." - guid ".$item["guid"]." - ".(int)$result, Logger::DEBUG);
3278 private static function deleteThread($itemid, $itemuri = "")
3280 $item = DBA::selectFirst('thread', ['uid'], ['iid' => $itemid]);
3281 if (!DBA::isResult($item)) {
3282 Logger::log('No thread found for id '.$itemid, Logger::DEBUG);
3286 $result = DBA::delete('thread', ['iid' => $itemid], ['cascade' => false]);
3288 Logger::log("deleteThread: Deleted thread for item ".$itemid." - ".print_r($result, true), Logger::DEBUG);
3290 if ($itemuri != "") {
3291 $condition = ["`uri` = ? AND NOT `deleted` AND NOT (`uid` IN (?, 0))", $itemuri, $item["uid"]];
3292 if (!self::exists($condition)) {
3293 DBA::delete('item', ['uri' => $itemuri, 'uid' => 0]);
3294 Logger::debug('Deleted shadow item', ['id' => $itemid, 'uri' => $itemuri]);
3299 public static function getPermissionsSQLByUserId($owner_id)
3301 $local_user = local_user();
3302 $remote_user = Session::getRemoteContactID($owner_id);
3305 * Construct permissions
3307 * default permissions - anonymous user
3309 $sql = sprintf(" AND `item`.`private` != %d", self::PRIVATE);
3311 // Profile owner - everything is visible
3312 if ($local_user && ($local_user == $owner_id)) {
3314 } elseif ($remote_user) {
3316 * Authenticated visitor. Unless pre-verified,
3317 * check that the contact belongs to this $owner_id
3318 * and load the groups the visitor belongs to.
3319 * If pre-verified, the caller is expected to have already
3320 * done this and passed the groups into this function.
3322 $set = PermissionSet::get($owner_id, $remote_user);
3325 $sql_set = sprintf(" OR (`item`.`private` = %d AND `item`.`wall` AND `item`.`psid` IN (", self::PRIVATE) . implode(',', $set) . "))";
3330 $sql = sprintf(" AND (`item`.`private` != %d", self::PRIVATE) . $sql_set . ")";
3337 * get translated item type
3342 public static function postType($item)
3344 if (!empty($item['event-id'])) {
3345 return DI::l10n()->t('event');
3346 } elseif (!empty($item['resource-id'])) {
3347 return DI::l10n()->t('photo');
3348 } elseif (!empty($item['verb']) && $item['verb'] !== Activity::POST) {
3349 return DI::l10n()->t('activity');
3350 } elseif ($item['id'] != $item['parent']) {
3351 return DI::l10n()->t('comment');
3354 return DI::l10n()->t('post');
3358 * Sets the "rendered-html" field of the provided item
3360 * Body is preserved to avoid side-effects as we modify it just-in-time for spoilers and private image links
3362 * @param array $item
3363 * @param bool $update
3365 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3366 * @todo Remove reference, simply return "rendered-html" and "rendered-hash"
3368 public static function putInCache(&$item, $update = false)
3370 $body = $item["body"];
3372 $rendered_hash = $item['rendered-hash'] ?? '';
3373 $rendered_html = $item['rendered-html'] ?? '';
3375 if ($rendered_hash == ''
3376 || $rendered_html == ""
3377 || $rendered_hash != hash("md5", $item["body"])
3378 || DI::config()->get("system", "ignore_cache")
3380 self::addRedirToImageTags($item);
3382 $item["rendered-html"] = BBCode::convert($item["body"]);
3383 $item["rendered-hash"] = hash("md5", $item["body"]);
3385 $hook_data = ['item' => $item, 'rendered-html' => $item['rendered-html'], 'rendered-hash' => $item['rendered-hash']];
3386 Hook::callAll('put_item_in_cache', $hook_data);
3387 $item['rendered-html'] = $hook_data['rendered-html'];
3388 $item['rendered-hash'] = $hook_data['rendered-hash'];
3391 // Force an update if the generated values differ from the existing ones
3392 if ($rendered_hash != $item["rendered-hash"]) {
3396 // Only compare the HTML when we forcefully ignore the cache
3397 if (DI::config()->get("system", "ignore_cache") && ($rendered_html != $item["rendered-html"])) {
3401 if ($update && !empty($item["id"])) {
3404 'rendered-html' => $item["rendered-html"],
3405 'rendered-hash' => $item["rendered-hash"]
3407 ['id' => $item["id"]]
3412 $item["body"] = $body;
3416 * Find any non-embedded images in private items and add redir links to them
3418 * @param array &$item The field array of an item row
3420 private static function addRedirToImageTags(array &$item)
3425 $cnt = preg_match_all('|\[img\](http[^\[]*?/photo/[a-fA-F0-9]+?(-[0-9]\.[\w]+?)?)\[\/img\]|', $item['body'], $matches, PREG_SET_ORDER);
3427 foreach ($matches as $mtch) {
3428 if (strpos($mtch[1], '/redir') !== false) {
3432 if ((local_user() == $item['uid']) && ($item['private'] == self::PRIVATE) && ($item['contact-id'] != $app->contact['id']) && ($item['network'] == Protocol::DFRN)) {
3433 $img_url = 'redir/' . $item['contact-id'] . '?url=' . urlencode($mtch[1]);
3434 $item['body'] = str_replace($mtch[0], '[img]' . $img_url . '[/img]', $item['body']);
3441 * Given an item array, convert the body element from bbcode to html and add smilie icons.
3442 * If attach is true, also add icons for item attachments.
3444 * @param array $item
3445 * @param boolean $attach
3446 * @param boolean $is_preview
3447 * @return string item body html
3448 * @throws \Friendica\Network\HTTPException\InternalServerErrorException
3449 * @throws \ImagickException
3450 * @hook prepare_body_init item array before any work
3451 * @hook prepare_body_content_filter ('item'=>item array, 'filter_reasons'=>string array) before first bbcode to html
3452 * @hook prepare_body ('item'=>item array, 'html'=>body string, 'is_preview'=>boolean, 'filter_reasons'=>string array) after first bbcode to html
3453 * @hook prepare_body_final ('item'=>item array, 'html'=>body string) after attach icons and blockquote special case handling (spoiler, author)
3455 public static function prepareBody(array &$item, $attach = false, $is_preview = false)
3458 Hook::callAll('prepare_body_init', $item);
3460 // In order to provide theme developers more possibilities, event items
3461 // are treated differently.
3462 if ($item['object-type'] === Activity\ObjectType::EVENT && isset($item['event-id'])) {
3463 $ev = Event::getItemHTML($item);
3467 $tags = Tag::populateFromItem($item);
3469 $item['tags'] = $tags['tags'];
3470 $item['hashtags'] = $tags['hashtags'];
3471 $item['mentions'] = $tags['mentions'];
3473 // Compile eventual content filter reasons
3474 $filter_reasons = [];
3475 if (!$is_preview && public_contact() != $item['author-id']) {
3476 if (!empty($item['content-warning']) && (!local_user() || !DI::pConfig()->get(local_user(), 'system', 'disable_cw', false))) {
3477 $filter_reasons[] = DI::l10n()->t('Content warning: %s', $item['content-warning']);
3482 'filter_reasons' => $filter_reasons
3484 Hook::callAll('prepare_body_content_filter', $hook_data);
3485 $filter_reasons = $hook_data['filter_reasons'];
3489 // Update the cached values if there is no "zrl=..." on the links.
3490 $update = (!Session::isAuthenticated() && ($item["uid"] == 0));
3492 // Or update it if the current viewer is the intented viewer.
3493 if (($item["uid"] == local_user()) && ($item["uid"] != 0)) {
3497 self::putInCache($item, $update);
3498 $s = $item["rendered-html"];
3503 'preview' => $is_preview,
3504 'filter_reasons' => $filter_reasons
3506 Hook::callAll('prepare_body', $hook_data);
3507 $s = $hook_data['html'];
3511 // Replace the blockquotes with quotes that are used in mails.
3512 $mailquote = '<blockquote type="cite" class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">';
3513 $s = str_replace(['<blockquote>', '<blockquote class="spoiler">', '<blockquote class="author">'], [$mailquote, $mailquote, $mailquote], $s);
3520 preg_match_all('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\"(?: title=\"(.*?)\")?|', $item['attach'], $matches, PREG_SET_ORDER);
3521 foreach ($matches as $mtch) {
3524 $the_url = Contact::magicLinkById($item['author-id'], $mtch[1]);
3526 if (strpos($mime, 'video') !== false) {
3529 DI::page()['htmlhead'] .= Renderer::replaceMacros(Renderer::getMarkupTemplate('videos_head.tpl'));
3532 $url_parts = explode('/', $the_url);
3533 $id = end($url_parts);
3534 $as .= Renderer::replaceMacros(Renderer::getMarkupTemplate('video_top.tpl'), [
3537 'title' => DI::l10n()->t('View Video'),
3544 $filetype = strtolower(substr($mime, 0, strpos($mime, '/')));
3546 $filesubtype = strtolower(substr($mime, strpos($mime, '/') + 1));
3547 $filesubtype = str_replace('.', '-', $filesubtype);
3550 $filesubtype = 'unkn';
3553 $title = Strings::escapeHtml(trim(($mtch[4] ?? '') ?: $mtch[1]));
3554 $title .= ' ' . $mtch[2] . ' ' . DI::l10n()->t('bytes');
3556 $icon = '<div class="attachtype icon s22 type-' . $filetype . ' subtype-' . $filesubtype . '"></div>';
3557 $as .= '<a href="' . strip_tags($the_url) . '" title="' . $title . '" class="attachlink" target="_blank" rel="noopener noreferrer" >' . $icon . '</a>';
3561 $s .= '<div class="body-attach">'.$as.'<div class="clear"></div></div>';
3565 if (strpos($s, '<div class="map">') !== false && !empty($item['coord'])) {
3566 $x = Map::byCoordinates(trim($item['coord']));
3568 $s = preg_replace('/\<div class\=\"map\"\>/', '$0' . $x, $s);
3572 // Replace friendica image url size with theme preference.
3573 if (!empty($a->theme_info['item_image_size'])) {
3574 $ps = $a->theme_info['item_image_size'];
3575 $s = preg_replace('|(<img[^>]+src="[^"]+/photo/[0-9a-f]+)-[0-9]|', "$1-" . $ps, $s);
3578 $s = HTML::applyContentFilter($s, $filter_reasons);
3580 $hook_data = ['item' => $item, 'html' => $s];
3581 Hook::callAll('prepare_body_final', $hook_data);
3583 return $hook_data['html'];
3587 * get private link for item
3589 * @param array $item
3590 * @return boolean|array False if item has not plink, otherwise array('href'=>plink url, 'title'=>translated title)
3591 * @throws \Exception
3593 public static function getPlink($item)
3597 if ($a->user['nickname'] != "") {
3599 'href' => "display/" . $item['guid'],
3600 'orig' => "display/" . $item['guid'],
3601 'title' => DI::l10n()->t('View on separate page'),
3602 'orig_title' => DI::l10n()->t('view on separate page'),
3605 if (!empty($item['plink'])) {
3606 $ret["href"] = DI::baseUrl()->remove($item['plink']);
3607 $ret["title"] = DI::l10n()->t('link to source');
3610 } elseif (!empty($item['plink']) && ($item['private'] != self::PRIVATE)) {
3612 'href' => $item['plink'],
3613 'orig' => $item['plink'],
3614 'title' => DI::l10n()->t('link to source'),
3624 * Is the given item array a post that is sent as starting post to a forum?
3626 * @param array $item
3627 * @param array $owner
3629 * @return boolean "true" when it is a forum post
3631 public static function isForumPost(array $item, array $owner = [])
3633 if (empty($owner)) {
3634 $owner = User::getOwnerDataById($item['uid']);
3635 if (empty($owner)) {
3640 if (($item['author-id'] == $item['owner-id']) ||
3641 ($owner['id'] == $item['contact-id']) ||
3642 ($item['uri'] != $item['parent-uri']) ||
3647 return Contact::isForum($item['contact-id']);
3651 * Search item id for given URI or plink
3653 * @param string $uri
3654 * @param integer $uid
3656 * @return integer item id
3658 public static function searchByLink($uri, $uid = 0)
3660 $ssl_uri = str_replace('http://', 'https://', $uri);
3661 $uris = [$uri, $ssl_uri, Strings::normaliseLink($uri)];
3663 $item = DBA::selectFirst('item', ['id'], ['uri' => $uris, 'uid' => $uid]);
3664 if (DBA::isResult($item)) {
3668 $itemcontent = DBA::selectFirst('item-content', ['uri-id'], ['plink' => $uris]);
3669 if (!DBA::isResult($itemcontent)) {
3673 $itemuri = DBA::selectFirst('item-uri', ['uri'], ['id' => $itemcontent['uri-id']]);
3674 if (!DBA::isResult($itemuri)) {
3678 $item = DBA::selectFirst('item', ['id'], ['uri' => $itemuri['uri'], 'uid' => $uid]);
3679 if (DBA::isResult($item)) {
3687 * Return the URI for a link to the post
3689 * @param string $uri URI or link to post
3691 * @return string URI
3693 public static function getURIByLink(string $uri)
3695 $ssl_uri = str_replace('http://', 'https://', $uri);
3696 $uris = [$uri, $ssl_uri, Strings::normaliseLink($uri)];
3698 $item = DBA::selectFirst('item', ['uri'], ['uri' => $uris]);
3699 if (DBA::isResult($item)) {
3700 return $item['uri'];
3703 $itemcontent = DBA::selectFirst('item-content', ['uri-id'], ['plink' => $uris]);
3704 if (!DBA::isResult($itemcontent)) {
3708 $itemuri = DBA::selectFirst('item-uri', ['uri'], ['id' => $itemcontent['uri-id']]);
3709 if (DBA::isResult($itemuri)) {
3710 return $itemuri['uri'];
3717 * Fetches item for given URI or plink
3719 * @param string $uri
3720 * @param integer $uid
3722 * @return integer item id
3724 public static function fetchByLink($uri, $uid = 0)
3726 $item_id = self::searchByLink($uri, $uid);
3727 if (!empty($item_id)) {
3731 if ($fetched_uri = ActivityPub\Processor::fetchMissingActivity($uri)) {
3732 $item_id = self::searchByLink($fetched_uri, $uid);
3734 $item_id = Diaspora::fetchByURL($uri);
3737 if (!empty($item_id)) {
3745 * Return share data from an item array (if the item is shared item)
3746 * We are providing the complete Item array, because at some time in the future
3747 * we hopefully will define these values not in the body anymore but in some item fields.
3748 * This function is meant to replace all similar functions in the system.
3750 * @param array $item
3752 * @return array with share information
3754 public static function getShareArray($item)
3756 if (!preg_match("/(.*?)\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism", $item['body'], $matches)) {
3760 $attribute_string = $matches[2];
3761 $attributes = ['comment' => trim($matches[1]), 'shared' => trim($matches[3])];
3762 foreach (['author', 'profile', 'avatar', 'guid', 'posted', 'link'] as $field) {
3763 if (preg_match("/$field=(['\"])(.+?)\\1/ism", $attribute_string, $matches)) {
3764 $attributes[$field] = trim(html_entity_decode($matches[2] ?? '', ENT_QUOTES, 'UTF-8'));
3771 * Fetch item information for shared items from the original items and adds it.
3773 * @param array $item
3775 * @return array item array with data from the original item
3777 public static function addShareDataFromOriginal($item)
3779 $shared = self::getShareArray($item);
3780 if (empty($shared)) {
3784 // Real reshares always have got a GUID.
3785 if (empty($shared['guid'])) {
3789 $uid = $item['uid'] ?? 0;
3791 // first try to fetch the item via the GUID. This will work for all reshares that had been created on this system
3792 $shared_item = self::selectFirst(['title', 'body', 'attach'], ['guid' => $shared['guid'], 'uid' => [0, $uid]]);
3793 if (!DBA::isResult($shared_item)) {
3794 if (empty($shared['link'])) {
3798 // Otherwhise try to find (and possibly fetch) the item via the link. This should work for Diaspora and ActivityPub posts
3799 $id = self::fetchByLink($shared['link'], $uid);
3801 Logger::info('Original item not found', ['url' => $shared['link'], 'callstack' => System::callstack()]);
3805 $shared_item = self::selectFirst(['title', 'body', 'attach'], ['id' => $id]);
3806 if (!DBA::isResult($shared_item)) {
3809 Logger::info('Got shared data from url', ['url' => $shared['link'], 'callstack' => System::callstack()]);
3811 Logger::info('Got shared data from guid', ['guid' => $shared['guid'], 'callstack' => System::callstack()]);
3814 if (!empty($shared_item['title'])) {
3815 $body = '[h3]' . $shared_item['title'] . "[/h3]\n" . $shared_item['body'];
3816 unset($shared_item['title']);
3818 $body = $shared_item['body'];
3821 $item['body'] = preg_replace("/\[share ([^\[\]]*)\].*\[\/share\]/ism", '[share $1]' . $body . '[/share]', $item['body']);
3822 unset($shared_item['body']);
3824 return array_merge($item, $shared_item);