4 * @file src/Model/Item.php
7 namespace Friendica\Model;
9 use Friendica\BaseObject;
10 use Friendica\Content\Text;
11 use Friendica\Core\Addon;
12 use Friendica\Core\Config;
13 use Friendica\Core\L10n;
14 use Friendica\Core\PConfig;
15 use Friendica\Core\System;
16 use Friendica\Core\Worker;
17 use Friendica\Database\DBM;
18 use Friendica\Model\Contact;
19 use Friendica\Model\Conversation;
20 use Friendica\Model\Group;
21 use Friendica\Model\Term;
22 use Friendica\Object\Image;
23 use Friendica\Protocol\Diaspora;
24 use Friendica\Protocol\OStatus;
25 use Friendica\Util\DateTimeFormat;
26 use Friendica\Util\XML;
27 use Friendica\Util\Lock;
29 use Text_LanguageDetect;
31 require_once 'boot.php';
32 require_once 'include/items.php';
33 require_once 'include/text.php';
35 class Item extends BaseObject
37 // Field list that is used to display the items
38 const DISPLAY_FIELDLIST = ['uid', 'id', 'parent', 'uri', 'thr-parent', 'parent-uri', 'guid', 'network',
39 'commented', 'created', 'edited', 'received', 'verb', 'object-type', 'postopts', 'plink',
40 'wall', 'private', 'starred', 'origin', 'title', 'body', 'file', 'attach', 'language',
41 'content-warning', 'location', 'coord', 'app', 'rendered-hash', 'rendered-html', 'object',
42 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid', 'item_id',
43 'author-id', 'author-link', 'author-name', 'author-avatar', 'author-network',
44 'owner-id', 'owner-link', 'owner-name', 'owner-avatar', 'owner-network',
45 'contact-id', 'contact-link', 'contact-name', 'contact-avatar',
46 'writable', 'self', 'cid', 'alias',
47 'event-id', 'event-created', 'event-edited', 'event-start', 'event-finish',
48 'event-summary', 'event-desc', 'event-location', 'event-type',
49 'event-nofinish', 'event-adjust', 'event-ignore', 'event-id'];
51 // Field list that is used to deliver items via the protocols
52 const DELIVER_FIELDLIST = ['uid', 'id', 'parent', 'uri', 'thr-parent', 'parent-uri', 'guid',
53 'created', 'edited', 'verb', 'object-type', 'object', 'target',
54 'private', 'title', 'body', 'location', 'coord', 'app',
55 'attach', 'tag', 'bookmark', 'deleted', 'extid',
56 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
57 'author-id', 'author-link', 'owner-link', 'contact-uid',
58 'signed_text', 'signature', 'signer'];
60 // Field list for "item-content" table that is mixed with the item table
61 const MIXED_CONTENT_FIELDLIST = ['title', 'content-warning', 'body', 'location',
62 'coord', 'app', 'rendered-hash', 'rendered-html', 'verb',
63 'object-type', 'object', 'target-type', 'target', 'plink'];
65 // Field list for "item-content" table that is not present in the "item" table
66 const CONTENT_FIELDLIST = ['language'];
68 // All fields in the item table
69 const ITEM_FIELDLIST = ['id', 'uid', 'parent', 'uri', 'parent-uri', 'thr-parent', 'guid',
70 'contact-id', 'type', 'wall', 'gravity', 'extid', 'icid',
71 'created', 'edited', 'commented', 'received', 'changed', 'verb',
72 'postopts', 'plink', 'resource-id', 'event-id', 'tag', 'attach', 'inform',
73 'file', 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
74 'private', 'pubmail', 'moderated', 'visible', 'starred', 'bookmark',
75 'unseen', 'deleted', 'origin', 'forum_mode', 'mention', 'global', 'network',
76 'title', 'content-warning', 'body', 'location', 'coord', 'app',
77 'rendered-hash', 'rendered-html', 'object-type', 'object', 'target-type', 'target',
78 'author-id', 'author-link', 'author-name', 'author-avatar',
79 'owner-id', 'owner-link', 'owner-name', 'owner-avatar'];
82 * @brief Fetch a single item row
84 * @param mixed $stmt statement object
85 * @return array current row
87 public static function fetch($stmt)
89 $row = dba::fetch($stmt);
91 // Fetch data from the item-content table whenever there is content there
92 foreach (self::MIXED_CONTENT_FIELDLIST as $field) {
93 if (empty($row[$field]) && !empty($row['item-' . $field])) {
94 $row[$field] = $row['item-' . $field];
96 unset($row['item-' . $field]);
99 // We prefer the data from the user's contact over the public one
100 if (!empty($row['author-link']) && !empty($row['contact-link']) &&
101 ($row['author-link'] == $row['contact-link'])) {
102 if (isset($row['author-avatar']) && !empty($row['contact-avatar'])) {
103 $row['author-avatar'] = $row['contact-avatar'];
105 if (isset($row['author-name']) && !empty($row['contact-name'])) {
106 $row['author-name'] = $row['contact-name'];
110 if (!empty($row['owner-link']) && !empty($row['contact-link']) &&
111 ($row['owner-link'] == $row['contact-link'])) {
112 if (isset($row['owner-avatar']) && !empty($row['contact-avatar'])) {
113 $row['owner-avatar'] = $row['contact-avatar'];
115 if (isset($row['owner-name']) && !empty($row['contact-name'])) {
116 $row['owner-name'] = $row['contact-name'];
120 // Build the tag string out of the term entries
121 if (isset($row['id']) && array_key_exists('tag', $row)) {
122 $row['tag'] = Term::tagTextFromItemId($row['id']);
125 // Build the file string out of the term entries
126 if (isset($row['id']) && array_key_exists('file', $row)) {
127 $row['file'] = Term::fileTextFromItemId($row['id']);
130 // We can always comment on posts from these networks
131 if (isset($row['writable']) && !empty($row['network']) &&
132 in_array($row['network'], [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS])) {
133 $row['writable'] = true;
140 * @brief Fills an array with data from an item query
142 * @param object $stmt statement object
143 * @return array Data array
145 public static function inArray($stmt, $do_close = true) {
146 if (is_bool($stmt)) {
151 while ($row = self::fetch($stmt)) {
161 * @brief Check if item data exists
163 * @param array $condition array of fields for condition
165 * @return boolean Are there rows for that condition?
167 public static function exists($condition) {
168 $stmt = self::select(['id'], $condition, ['limit' => 1]);
170 if (is_bool($stmt)) {
173 $retval = (dba::num_rows($stmt) > 0);
182 * Retrieve a single record from the item table for a given user and returns it in an associative array
184 * @brief Retrieve a single record from a table
185 * @param integer $uid User ID
186 * @param array $fields
187 * @param array $condition
188 * @param array $params
192 public static function selectFirstForUser($uid, array $selected = [], array $condition = [], $params = [])
194 $params['uid'] = $uid;
196 if (empty($selected)) {
197 $selected = Item::DISPLAY_FIELDLIST;
200 return self::selectFirst($selected, $condition, $params);
204 * @brief Select rows from the item table for a given user
206 * @param integer $uid User ID
207 * @param array $selected Array of selected fields, empty for all
208 * @param array $condition Array of fields for condition
209 * @param array $params Array of several parameters
211 * @return boolean|object
213 public static function selectForUser($uid, array $selected = [], array $condition = [], $params = [])
215 $params['uid'] = $uid;
217 if (empty($selected)) {
218 $selected = Item::DISPLAY_FIELDLIST;
221 return self::select($selected, $condition, $params);
225 * Retrieve a single record from the item table and returns it in an associative array
227 * @brief Retrieve a single record from a table
228 * @param array $fields
229 * @param array $condition
230 * @param array $params
234 public static function selectFirst(array $fields = [], array $condition = [], $params = [])
236 $params['limit'] = 1;
238 $result = self::select($fields, $condition, $params);
240 if (is_bool($result)) {
243 $row = self::fetch($result);
250 * @brief Select rows from the item table
252 * @param array $selected Array of selected fields, empty for all
253 * @param array $condition Array of fields for condition
254 * @param array $params Array of several parameters
256 * @return boolean|object
258 public static function select(array $selected = [], array $condition = [], $params = [])
263 if (isset($params['uid'])) {
264 $uid = $params['uid'];
268 $fields = self::fieldlist($selected);
270 $select_fields = self::constructSelectFields($fields, $selected);
272 $condition_string = dba::buildCondition($condition);
274 $condition_string = self::addTablesToFields($condition_string, $fields);
277 $condition_string = $condition_string . ' AND ' . self::condition(false);
280 $param_string = self::addTablesToFields(dba::buildParameter($params), $fields);
282 $table = "`item` " . self::constructJoins($uid, $select_fields . $condition_string . $param_string, false, $usermode);
284 $sql = "SELECT " . $select_fields . " FROM " . $table . $condition_string . $param_string;
286 return dba::p($sql, $condition);
290 * @brief Select rows from the starting post in the item table
292 * @param integer $uid User ID
293 * @param array $fields Array of selected fields, empty for all
294 * @param array $condition Array of fields for condition
295 * @param array $params Array of several parameters
297 * @return boolean|object
299 public static function selectThreadForUser($uid, array $selected = [], array $condition = [], $params = [])
301 $params['uid'] = $uid;
303 if (empty($selected)) {
304 $selected = Item::DISPLAY_FIELDLIST;
307 return self::selectThread($selected, $condition, $params);
311 * Retrieve a single record from the starting post in the item table and returns it in an associative array
313 * @brief Retrieve a single record from a table
314 * @param integer $uid User ID
315 * @param array $selected
316 * @param array $condition
317 * @param array $params
321 public static function selectFirstThreadForUser($uid, array $selected = [], array $condition = [], $params = [])
323 $params['uid'] = $uid;
325 if (empty($selected)) {
326 $selected = Item::DISPLAY_FIELDLIST;
329 return self::selectFirstThread($selected, $condition, $params);
333 * Retrieve a single record from the starting post in the item table and returns it in an associative array
335 * @brief Retrieve a single record from a table
336 * @param array $fields
337 * @param array $condition
338 * @param array $params
342 public static function selectFirstThread(array $fields = [], array $condition = [], $params = [])
344 $params['limit'] = 1;
345 $result = self::selectThread($fields, $condition, $params);
347 if (is_bool($result)) {
350 $row = self::fetch($result);
357 * @brief Select rows from the starting post in the item table
359 * @param array $selected Array of selected fields, empty for all
360 * @param array $condition Array of fields for condition
361 * @param array $params Array of several parameters
363 * @return boolean|object
365 public static function selectThread(array $selected = [], array $condition = [], $params = [])
370 if (isset($params['uid'])) {
371 $uid = $params['uid'];
375 $fields = self::fieldlist($selected);
377 $threadfields = ['thread' => ['iid', 'uid', 'contact-id', 'owner-id', 'author-id',
378 'created', 'edited', 'commented', 'received', 'changed', 'wall', 'private',
379 'pubmail', 'moderated', 'visible', 'starred', 'ignored', 'bookmark',
380 'unseen', 'deleted', 'origin', 'forum_mode', 'mention', 'network']];
382 $select_fields = self::constructSelectFields($fields, $selected);
384 $condition_string = dba::buildCondition($condition);
386 $condition_string = self::addTablesToFields($condition_string, $threadfields);
387 $condition_string = self::addTablesToFields($condition_string, $fields);
390 $condition_string = $condition_string . ' AND ' . self::condition(true);
393 $param_string = dba::buildParameter($params);
394 $param_string = self::addTablesToFields($param_string, $threadfields);
395 $param_string = self::addTablesToFields($param_string, $fields);
397 $table = "`thread` " . self::constructJoins($uid, $select_fields . $condition_string . $param_string, true, $usermode);
399 $sql = "SELECT " . $select_fields . " FROM " . $table . $condition_string . $param_string;
401 return dba::p($sql, $condition);
405 * @brief Returns a list of fields that are associated with the item table
407 * @return array field list
409 private static function fieldlist($selected)
413 $fields['item'] = ['id', 'uid', 'parent', 'uri', 'parent-uri', 'thr-parent', 'guid',
414 'contact-id', 'owner-id', 'author-id', 'type', 'wall', 'gravity', 'extid',
415 'created', 'edited', 'commented', 'received', 'changed', 'postopts',
416 'resource-id', 'event-id', 'tag', 'attach', 'inform',
417 'file', 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
418 'private', 'pubmail', 'moderated', 'visible', 'starred', 'bookmark',
419 'unseen', 'deleted', 'origin', 'forum_mode', 'mention', 'global',
420 'id' => 'item_id', 'network', 'icid'];
422 $fields['item-content'] = array_merge(self::CONTENT_FIELDLIST, self::MIXED_CONTENT_FIELDLIST);
424 $fields['author'] = ['url' => 'author-link', 'name' => 'author-name',
425 'thumb' => 'author-avatar', 'nick' => 'author-nick', 'network' => 'author-network'];
427 $fields['owner'] = ['url' => 'owner-link', 'name' => 'owner-name',
428 'thumb' => 'owner-avatar', 'nick' => 'owner-nick', 'network' => 'owner-network'];
430 $fields['contact'] = ['url' => 'contact-link', 'name' => 'contact-name', 'thumb' => 'contact-avatar',
431 'writable', 'self', 'id' => 'cid', 'alias', 'uid' => 'contact-uid',
432 'photo', 'name-date', 'uri-date', 'avatar-date', 'thumb', 'dfrn-id'];
434 $fields['parent-item'] = ['guid' => 'parent-guid', 'network' => 'parent-network'];
436 $fields['parent-item-author'] = ['url' => 'parent-author-link', 'name' => 'parent-author-name'];
438 $fields['event'] = ['created' => 'event-created', 'edited' => 'event-edited',
439 'start' => 'event-start','finish' => 'event-finish',
440 'summary' => 'event-summary','desc' => 'event-desc',
441 'location' => 'event-location', 'type' => 'event-type',
442 'nofinish' => 'event-nofinish','adjust' => 'event-adjust',
443 'ignore' => 'event-ignore', 'id' => 'event-id'];
445 $fields['sign'] = ['signed_text', 'signature', 'signer'];
451 * @brief Returns SQL condition for the "select" functions
453 * @param boolean $thread_mode Called for the items (false) or for the threads (true)
455 * @return string SQL condition
457 private static function condition($thread_mode)
460 $master_table = "`thread`";
462 $master_table = "`item`";
464 return "$master_table.`visible` AND NOT $master_table.`deleted` AND NOT $master_table.`moderated` AND (`user-item`.`hidden` IS NULL OR NOT `user-item`.`hidden`) ";
468 * @brief Returns all needed "JOIN" commands for the "select" functions
470 * @param integer $uid User ID
471 * @param string $sql_commands The parts of the built SQL commands in the "select" functions
472 * @param boolean $thread_mode Called for the items (false) or for the threads (true)
474 * @return string The SQL joins for the "select" functions
476 private static function constructJoins($uid, $sql_commands, $thread_mode, $user_mode)
479 $master_table = "`thread`";
480 $master_table_key = "`thread`.`iid`";
481 $joins = "STRAIGHT_JOIN `item` ON `item`.`id` = `thread`.`iid` ";
483 $master_table = "`item`";
484 $master_table_key = "`item`.`id`";
489 $joins .= sprintf("STRAIGHT_JOIN `contact` ON `contact`.`id` = $master_table.`contact-id`
490 AND NOT `contact`.`blocked`
491 AND ((NOT `contact`.`readonly` AND NOT `contact`.`pending` AND (`contact`.`rel` IN (%s, %s)))
492 OR `contact`.`self` OR (`item`.`id` != `item`.`parent`) OR `contact`.`uid` = 0)
493 STRAIGHT_JOIN `contact` AS `author` ON `author`.`id` = $master_table.`author-id` AND NOT `author`.`blocked`
494 STRAIGHT_JOIN `contact` AS `owner` ON `owner`.`id` = $master_table.`owner-id` AND NOT `owner`.`blocked`
495 LEFT JOIN `user-item` ON `user-item`.`iid` = $master_table_key AND `user-item`.`uid` = %d",
496 CONTACT_IS_SHARING, CONTACT_IS_FRIEND, intval($uid));
498 if (strpos($sql_commands, "`contact`.") !== false) {
499 $joins .= "STRAIGHT_JOIN `contact` ON `contact`.`id` = $master_table.`contact-id`";
501 if (strpos($sql_commands, "`author`.") !== false) {
502 $joins .= " STRAIGHT_JOIN `contact` AS `author` ON `author`.`id` = $master_table.`author-id`";
504 if (strpos($sql_commands, "`owner`.") !== false) {
505 $joins .= " STRAIGHT_JOIN `contact` AS `owner` ON `owner`.`id` = $master_table.`owner-id`";
509 if (strpos($sql_commands, "`group_member`.") !== false) {
510 $joins .= " STRAIGHT_JOIN `group_member` ON `group_member`.`contact-id` = $master_table.`contact-id`";
513 if (strpos($sql_commands, "`user`.") !== false) {
514 $joins .= " STRAIGHT_JOIN `user` ON `user`.`uid` = $master_table.`uid`";
517 if (strpos($sql_commands, "`event`.") !== false) {
518 $joins .= " LEFT JOIN `event` ON `event-id` = `event`.`id`";
521 if (strpos($sql_commands, "`sign`.") !== false) {
522 $joins .= " LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id`";
525 if (strpos($sql_commands, "`item-content`.") !== false) {
526 $joins .= " LEFT JOIN `item-content` ON `item-content`.`id` = `item`.`icid`";
529 if ((strpos($sql_commands, "`parent-item`.") !== false) || (strpos($sql_commands, "`parent-author`.") !== false)) {
530 $joins .= " STRAIGHT_JOIN `item` AS `parent-item` ON `parent-item`.`id` = `item`.`parent`";
533 if (strpos($sql_commands, "`parent-item-author`.") !== false) {
534 $joins .= " STRAIGHT_JOIN `contact` AS `parent-item-author` ON `parent-item-author`.`id` = `parent-item`.`author-id`";
541 * @brief Add the field list for the "select" functions
543 * @param array $fields The field definition array
544 * @param array $selected The array with the selected fields from the "select" functions
546 * @return string The field list
548 private static function constructSelectFields($fields, $selected)
550 // To be able to fetch the tags we need the item id
551 if (in_array('tag', $selected) && !in_array('id', $selected)) {
555 // To be able to fetch the files we need the item id
556 if (in_array('file', $selected) && !in_array('id', $selected)) {
561 foreach ($fields as $table => $table_fields) {
562 foreach ($table_fields as $field => $select) {
563 if (empty($selected) || in_array($select, $selected)) {
564 if (in_array($select, self::MIXED_CONTENT_FIELDLIST)) {
565 $selection[] = "`item`.`".$select."` AS `item-" . $select . "`";
567 if (is_int($field)) {
568 $selection[] = "`" . $table . "`.`" . $select . "`";
570 $selection[] = "`" . $table . "`.`" . $field . "` AS `" . $select . "`";
575 return implode(", ", $selection);
579 * @brief add table definition to fields in an SQL query
581 * @param string $query SQL query
582 * @param array $fields The field definition array
584 * @return string the changed SQL query
586 private static function addTablesToFields($query, $fields)
588 foreach ($fields as $table => $table_fields) {
589 foreach ($table_fields as $alias => $field) {
590 if (is_int($alias)) {
591 $replace_field = $field;
593 $replace_field = $alias;
596 $search = "/([^\.])`" . $field . "`/i";
597 $replace = "$1`" . $table . "`.`" . $replace_field . "`";
598 $query = preg_replace($search, $replace, $query);
605 * @brief Update existing item entries
607 * @param array $fields The fields that are to be changed
608 * @param array $condition The condition for finding the item entries
610 * In the future we may have to change permissions as well.
611 * Then we had to add the user id as third parameter.
613 * A return value of "0" doesn't mean an error - but that 0 rows had been changed.
615 * @return integer|boolean number of affected rows - or "false" if there was an error
617 public static function update(array $fields, array $condition)
619 if (empty($condition) || empty($fields)) {
623 // To ensure the data integrity we do it in an transaction
626 // We cannot simply expand the condition to check for origin entries
627 // The condition needn't to be a simple array but could be a complex condition.
628 // And we have to execute this query before the update to ensure to fetch the same data.
629 $items = dba::select('item', ['id', 'origin', 'uri', 'plink', 'icid'], $condition);
631 $content_fields = [];
632 foreach (array_merge(self::CONTENT_FIELDLIST, self::MIXED_CONTENT_FIELDLIST) as $field) {
633 if (isset($fields[$field])) {
634 $content_fields[$field] = $fields[$field];
635 unset($fields[$field]);
639 if (array_key_exists('tag', $fields)) {
640 $tags = $fields['tag'];
641 unset($fields['tag']);
646 if (array_key_exists('file', $fields)) {
647 $files = $fields['file'];
648 unset($fields['file']);
653 if (!empty($fields)) {
654 $success = dba::update('item', $fields, $condition);
663 // When there is no content for the "old" item table, this will count the fetched items
664 $rows = dba::affected_rows();
666 while ($item = dba::fetch($items)) {
667 if (!empty($item['plink'])) {
668 $content_fields['plink'] = $item['plink'];
670 self::updateContent($content_fields, ['uri' => $item['uri']]);
672 if (empty($item['icid'])) {
673 $item_content = dba::selectFirst('item-content', [], ['uri' => $item['uri']]);
674 if (DBM::is_result($item_content)) {
675 $item_fields = ['icid' => $item_content['id']];
676 // Clear all fields in the item table that have a content in the item-content table
677 foreach ($item_content as $field => $content) {
678 if (in_array($field, self::MIXED_CONTENT_FIELDLIST) && !empty($item_content[$field])) {
679 $item_fields[$field] = '';
682 dba::update('item', $item_fields, ['id' => $item['id']]);
687 Term::insertFromTagFieldByItemId($item['id'], $tags);
690 if (!empty($files)) {
691 Term::insertFromFileFieldByItemId($item['id'], $files);
694 self::updateThread($item['id']);
696 // We only need to notfiy others when it is an original entry from us.
697 // Only call the notifier when the item has some content relevant change.
698 if ($item['origin'] && in_array('edited', array_keys($fields))) {
699 Worker::add(PRIORITY_HIGH, "Notifier", 'edit_post', $item['id']);
709 * @brief Delete an item and notify others about it - if it was ours
711 * @param array $condition The condition for finding the item entries
712 * @param integer $priority Priority for the notification
714 public static function delete($condition, $priority = PRIORITY_HIGH)
716 $items = dba::select('item', ['id'], $condition);
717 while ($item = dba::fetch($items)) {
718 self::deleteById($item['id'], $priority);
724 * @brief Delete an item for an user and notify others about it - if it was ours
726 * @param array $condition The condition for finding the item entries
727 * @param integer $uid User who wants to delete this item
729 public static function deleteForUser($condition, $uid)
735 $items = dba::select('item', ['id', 'uid'], $condition);
736 while ($item = dba::fetch($items)) {
737 // "Deleting" global items just means hiding them
738 if ($item['uid'] == 0) {
739 dba::update('user-item', ['hidden' => true], ['iid' => $item['id'], 'uid' => $uid], true);
740 } elseif ($item['uid'] == $uid) {
741 self::deleteById($item['id'], PRIORITY_HIGH);
743 logger('Wrong ownership. Not deleting item ' . $item['id']);
750 * @brief Delete an item and notify others about it - if it was ours
752 * @param integer $item_id Item ID that should be delete
753 * @param integer $priority Priority for the notification
755 * @return boolean success
757 private static function deleteById($item_id, $priority = PRIORITY_HIGH)
759 // locate item to be deleted
760 $fields = ['id', 'uri', 'uid', 'parent', 'parent-uri', 'origin',
761 'deleted', 'file', 'resource-id', 'event-id', 'attach',
762 'verb', 'object-type', 'object', 'target', 'contact-id'];
763 $item = self::selectFirst($fields, ['id' => $item_id]);
764 if (!DBM::is_result($item)) {
765 logger('Item with ID ' . $item_id . " hasn't been found.", LOGGER_DEBUG);
769 if ($item['deleted']) {
770 logger('Item with ID ' . $item_id . ' has already been deleted.', LOGGER_DEBUG);
774 $parent = self::selectFirst(['origin'], ['id' => $item['parent']]);
775 if (!DBM::is_result($parent)) {
776 $parent = ['origin' => false];
779 // clean up categories and tags so they don't end up as orphans
782 $cnt = preg_match_all('/<(.*?)>/', $item['file'], $matches, PREG_SET_ORDER);
784 foreach ($matches as $mtch) {
785 file_tag_unsave_file($item['uid'], $item['id'], $mtch[1],true);
791 $cnt = preg_match_all('/\[(.*?)\]/', $item['file'], $matches, PREG_SET_ORDER);
793 foreach ($matches as $mtch) {
794 file_tag_unsave_file($item['uid'], $item['id'], $mtch[1],false);
799 * If item is a link to a photo resource, nuke all the associated photos
800 * (visitors will not have photo resources)
801 * This only applies to photos uploaded from the photos page. Photos inserted into a post do not
802 * generate a resource-id and therefore aren't intimately linked to the item.
804 if (strlen($item['resource-id'])) {
805 dba::delete('photo', ['resource-id' => $item['resource-id'], 'uid' => $item['uid']]);
808 // If item is a link to an event, delete the event.
809 if (intval($item['event-id'])) {
810 Event::delete($item['event-id']);
813 // If item has attachments, drop them
814 foreach (explode(", ", $item['attach']) as $attach) {
815 preg_match("|attach/(\d+)|", $attach, $matches);
816 dba::delete('attach', ['id' => $matches[1], 'uid' => $item['uid']]);
819 // Delete tags that had been attached to other items
820 self::deleteTagsFromItem($item);
822 // Set the item to "deleted"
823 // This erasing of item content is superfluous for items with a matching item-content.
824 // But for the next time we will still have old content in the item table.
825 $item_fields = ['deleted' => true, 'edited' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow(),
826 'body' => '', 'title' => '', 'content-warning' => '', 'rendered-hash' => '', 'rendered-html' => '',
827 'object' => '', 'target' => '', 'tag' => '', 'postopts' => '', 'attach' => '', 'file' => ''];
828 dba::update('item', $item_fields, ['id' => $item['id']]);
830 Term::insertFromTagFieldByItemId($item['id'], '');
831 Term::insertFromFileFieldByItemId($item['id'], '');
832 self::deleteThread($item['id'], $item['parent-uri']);
834 if (!self::exists(["`uri` = ? AND `uid` != 0 AND NOT `deleted`", $item['uri']])) {
835 self::delete(['uri' => $item['uri'], 'uid' => 0, 'deleted' => false], $priority);
838 // If it's the parent of a comment thread, kill all the kids
839 if ($item['id'] == $item['parent']) {
840 self::delete(['parent' => $item['parent'], 'deleted' => false], $priority);
843 // Is it our comment and/or our thread?
844 if ($item['origin'] || $parent['origin']) {
846 // When we delete the original post we will delete all existing copies on the server as well
847 self::delete(['uri' => $item['uri'], 'deleted' => false], $priority);
849 // send the notification upstream/downstream
850 Worker::add(['priority' => $priority, 'dont_fork' => true], "Notifier", "drop", intval($item['id']));
851 } elseif ($item['uid'] != 0) {
853 // When we delete just our local user copy of an item, we have to set a marker to hide it
854 $global_item = self::selectFirst(['id'], ['uri' => $item['uri'], 'uid' => 0, 'deleted' => false]);
855 if (DBM::is_result($global_item)) {
856 dba::update('user-item', ['hidden' => true], ['iid' => $global_item['id'], 'uid' => $item['uid']], true);
860 logger('Item with ID ' . $item_id . " has been deleted.", LOGGER_DEBUG);
865 private static function deleteTagsFromItem($item)
867 if (($item["verb"] != ACTIVITY_TAG) || ($item["object-type"] != ACTIVITY_OBJ_TAGTERM)) {
871 $xo = XML::parseString($item["object"], false);
872 $xt = XML::parseString($item["target"], false);
874 if ($xt->type != ACTIVITY_OBJ_NOTE) {
878 $i = self::selectFirst(['id', 'contact-id', 'tag'], ['uri' => $xt->id, 'uid' => $item['uid']]);
879 if (!DBM::is_result($i)) {
883 // For tags, the owner cannot remove the tag on the author's copy of the post.
884 $owner_remove = ($item["contact-id"] == $i["contact-id"]);
885 $author_copy = $item["origin"];
887 if (($owner_remove && $author_copy) || !$owner_remove) {
891 $tags = explode(',', $i["tag"]);
894 foreach ($tags as $tag) {
895 if (trim($tag) !== trim($xo->body)) {
896 $newtags[] = trim($tag);
900 self::update(['tag' => implode(',', $newtags)], ['id' => $i["id"]]);
903 private static function guid($item, $notify)
905 $guid = notags(trim($item['guid']));
912 // We have to avoid duplicates. So we create the GUID in form of a hash of the plink or uri.
913 // We add the hash of our own host because our host is the original creator of the post.
914 $prefix_host = get_app()->get_hostname();
918 // We are only storing the post so we create a GUID from the original hostname.
919 if (!empty($item['author-link'])) {
920 $parsed = parse_url($item['author-link']);
921 if (!empty($parsed['host'])) {
922 $prefix_host = $parsed['host'];
926 if (empty($prefix_host) && !empty($item['plink'])) {
927 $parsed = parse_url($item['plink']);
928 if (!empty($parsed['host'])) {
929 $prefix_host = $parsed['host'];
933 if (empty($prefix_host) && !empty($item['uri'])) {
934 $parsed = parse_url($item['uri']);
935 if (!empty($parsed['host'])) {
936 $prefix_host = $parsed['host'];
940 // Is it in the format data@host.tld? - Used for mail contacts
941 if (empty($prefix_host) && !empty($item['author-link']) && strstr($item['author-link'], '@')) {
942 $mailparts = explode('@', $item['author-link']);
943 $prefix_host = array_pop($mailparts);
947 if (!empty($item['plink'])) {
948 $guid = self::guidFromUri($item['plink'], $prefix_host);
949 } elseif (!empty($item['uri'])) {
950 $guid = self::guidFromUri($item['uri'], $prefix_host);
952 $guid = get_guid(32, hash('crc32', $prefix_host));
958 private static function contactId($item)
960 $contact_id = (int)$item["contact-id"];
962 if (!empty($contact_id)) {
965 logger('Missing contact-id. Called by: '.System::callstack(), LOGGER_DEBUG);
967 * First we are looking for a suitable contact that matches with the author of the post
968 * This is done only for comments
970 if ($item['parent-uri'] != $item['uri']) {
971 $contact_id = Contact::getIdForURL($item['author-link'], $item['uid']);
974 // If not present then maybe the owner was found
975 if ($contact_id == 0) {
976 $contact_id = Contact::getIdForURL($item['owner-link'], $item['uid']);
979 // Still missing? Then use the "self" contact of the current user
980 if ($contact_id == 0) {
981 $self = dba::selectFirst('contact', ['id'], ['self' => true, 'uid' => $item['uid']]);
982 if (DBM::is_result($self)) {
983 $contact_id = $self["id"];
986 logger("Contact-id was missing for post ".$item['guid']." from user id ".$item['uid']." - now set to ".$contact_id, LOGGER_DEBUG);
991 public static function insert($item, $force_parent = false, $notify = false, $dontcache = false)
995 // If it is a posting where users should get notifications, then define it as wall posting
998 $item['type'] = 'wall';
1000 $item['network'] = NETWORK_DFRN;
1001 $item['protocol'] = PROTOCOL_DFRN;
1003 if (is_int($notify)) {
1004 $priority = $notify;
1006 $priority = PRIORITY_HIGH;
1009 $item['network'] = trim(defaults($item, 'network', NETWORK_PHANTOM));
1012 $item['guid'] = self::guid($item, $notify);
1013 $item['uri'] = notags(trim(defaults($item, 'uri', self::newURI($item['uid'], $item['guid']))));
1015 // Store conversation data
1016 $item = Conversation::insert($item);
1019 * If a Diaspora signature structure was passed in, pull it out of the
1020 * item array and set it aside for later storage.
1024 if (x($item, 'dsprsig')) {
1025 $encoded_signature = $item['dsprsig'];
1026 $dsprsig = json_decode(base64_decode($item['dsprsig']));
1027 unset($item['dsprsig']);
1030 if (!empty($item['diaspora_signed_text'])) {
1031 $diaspora_signed_text = $item['diaspora_signed_text'];
1032 unset($item['diaspora_signed_text']);
1034 $diaspora_signed_text = '';
1037 // Converting the plink
1038 /// @TODO Check if this is really still needed
1039 if ($item['network'] == NETWORK_OSTATUS) {
1040 if (isset($item['plink'])) {
1041 $item['plink'] = OStatus::convertHref($item['plink']);
1042 } elseif (isset($item['uri'])) {
1043 $item['plink'] = OStatus::convertHref($item['uri']);
1047 if (!empty($item['thr-parent'])) {
1048 $item['parent-uri'] = $item['thr-parent'];
1051 $item['type'] = defaults($item, 'type', 'remote');
1053 if (isset($item['gravity'])) {
1054 $item['gravity'] = intval($item['gravity']);
1055 } elseif ($item['parent-uri'] === $item['uri']) {
1056 $item['gravity'] = GRAVITY_PARENT;
1057 } elseif (activity_match($item['verb'], ACTIVITY_POST)) {
1058 $item['gravity'] = GRAVITY_COMMENT;
1059 } elseif ($item['type'] == 'activity') {
1060 $item['gravity'] = GRAVITY_ACTIVITY;
1062 $item['gravity'] = GRAVITY_UNKNOWN; // Should not happen
1063 logger('Unknown gravity for verb: ' . $item['verb'] . ' - type: ' . $item['type'], LOGGER_DEBUG);
1066 $uid = intval($item['uid']);
1068 // check for create date and expire time
1069 $expire_interval = Config::get('system', 'dbclean-expire-days', 0);
1071 $user = dba::selectFirst('user', ['expire'], ['uid' => $uid]);
1072 if (DBM::is_result($user) && ($user['expire'] > 0) && (($user['expire'] < $expire_interval) || ($expire_interval == 0))) {
1073 $expire_interval = $user['expire'];
1076 if (($expire_interval > 0) && !empty($item['created'])) {
1077 $expire_date = time() - ($expire_interval * 86400);
1078 $created_date = strtotime($item['created']);
1079 if ($created_date < $expire_date) {
1080 logger('item-store: item created ('.date('c', $created_date).') before expiration time ('.date('c', $expire_date).'). ignored. ' . print_r($item,true), LOGGER_DEBUG);
1086 * Do we already have this item?
1087 * We have to check several networks since Friendica posts could be repeated
1088 * via OStatus (maybe Diasporsa as well)
1090 if (in_array($item['network'], [NETWORK_DIASPORA, NETWORK_DFRN, NETWORK_OSTATUS, ""])) {
1091 $condition = ["`uri` = ? AND `uid` = ? AND `network` IN (?, ?, ?)",
1092 trim($item['uri']), $item['uid'],
1093 NETWORK_DIASPORA, NETWORK_DFRN, NETWORK_OSTATUS];
1094 $existing = self::selectFirst(['id', 'network'], $condition);
1095 if (DBM::is_result($existing)) {
1096 // We only log the entries with a different user id than 0. Otherwise we would have too many false positives
1098 logger("Item with uri ".$item['uri']." already existed for user ".$uid." with id ".$existing["id"]." target network ".$existing["network"]." - new network: ".$item['network']);
1101 return $existing["id"];
1105 self::addLanguageToItemArray($item);
1107 $item['wall'] = intval(defaults($item, 'wall', 0));
1108 $item['extid'] = trim(defaults($item, 'extid', ''));
1109 $item['author-name'] = trim(defaults($item, 'author-name', ''));
1110 $item['author-link'] = trim(defaults($item, 'author-link', ''));
1111 $item['author-avatar'] = trim(defaults($item, 'author-avatar', ''));
1112 $item['owner-name'] = trim(defaults($item, 'owner-name', ''));
1113 $item['owner-link'] = trim(defaults($item, 'owner-link', ''));
1114 $item['owner-avatar'] = trim(defaults($item, 'owner-avatar', ''));
1115 $item['received'] = ((x($item, 'received') !== false) ? DateTimeFormat::utc($item['received']) : DateTimeFormat::utcNow());
1116 $item['created'] = ((x($item, 'created') !== false) ? DateTimeFormat::utc($item['created']) : $item['received']);
1117 $item['edited'] = ((x($item, 'edited') !== false) ? DateTimeFormat::utc($item['edited']) : $item['created']);
1118 $item['changed'] = ((x($item, 'changed') !== false) ? DateTimeFormat::utc($item['changed']) : $item['created']);
1119 $item['commented'] = ((x($item, 'commented') !== false) ? DateTimeFormat::utc($item['commented']) : $item['created']);
1120 $item['title'] = trim(defaults($item, 'title', ''));
1121 $item['location'] = trim(defaults($item, 'location', ''));
1122 $item['coord'] = trim(defaults($item, 'coord', ''));
1123 $item['visible'] = ((x($item, 'visible') !== false) ? intval($item['visible']) : 1);
1124 $item['deleted'] = 0;
1125 $item['parent-uri'] = trim(defaults($item, 'parent-uri', $item['uri']));
1126 $item['verb'] = trim(defaults($item, 'verb', ''));
1127 $item['object-type'] = trim(defaults($item, 'object-type', ''));
1128 $item['object'] = trim(defaults($item, 'object', ''));
1129 $item['target-type'] = trim(defaults($item, 'target-type', ''));
1130 $item['target'] = trim(defaults($item, 'target', ''));
1131 $item['plink'] = trim(defaults($item, 'plink', ''));
1132 $item['allow_cid'] = trim(defaults($item, 'allow_cid', ''));
1133 $item['allow_gid'] = trim(defaults($item, 'allow_gid', ''));
1134 $item['deny_cid'] = trim(defaults($item, 'deny_cid', ''));
1135 $item['deny_gid'] = trim(defaults($item, 'deny_gid', ''));
1136 $item['private'] = intval(defaults($item, 'private', 0));
1137 $item['bookmark'] = intval(defaults($item, 'bookmark', 0));
1138 $item['body'] = trim(defaults($item, 'body', ''));
1139 $item['tag'] = trim(defaults($item, 'tag', ''));
1140 $item['attach'] = trim(defaults($item, 'attach', ''));
1141 $item['app'] = trim(defaults($item, 'app', ''));
1142 $item['origin'] = intval(defaults($item, 'origin', 0));
1143 $item['postopts'] = trim(defaults($item, 'postopts', ''));
1144 $item['resource-id'] = trim(defaults($item, 'resource-id', ''));
1145 $item['event-id'] = intval(defaults($item, 'event-id', 0));
1146 $item['inform'] = trim(defaults($item, 'inform', ''));
1147 $item['file'] = trim(defaults($item, 'file', ''));
1149 // When there is no content then we don't post it
1150 if ($item['body'].$item['title'] == '') {
1151 logger('No body, no title.');
1155 // Items cannot be stored before they happen ...
1156 if ($item['created'] > DateTimeFormat::utcNow()) {
1157 $item['created'] = DateTimeFormat::utcNow();
1160 // We haven't invented time travel by now.
1161 if ($item['edited'] > DateTimeFormat::utcNow()) {
1162 $item['edited'] = DateTimeFormat::utcNow();
1165 if (($item['author-link'] == "") && ($item['owner-link'] == "")) {
1166 logger("Both author-link and owner-link are empty. Called by: " . System::callstack(), LOGGER_DEBUG);
1169 $item['plink'] = defaults($item, 'plink', System::baseUrl() . '/display/' . urlencode($item['guid']));
1171 // The contact-id should be set before "self::insert" was called - but there seems to be issues sometimes
1172 $item["contact-id"] = self::contactId($item);
1174 $default = ['url' => $item['author-link'], 'name' => $item['author-name'],
1175 'photo' => $item['author-avatar'], 'network' => $item['network']];
1177 $item['author-id'] = defaults($item, 'author-id', Contact::getIdForURL($item["author-link"], 0, false, $default));
1179 if (Contact::isBlocked($item["author-id"])) {
1180 logger('Contact '.$item["author-id"].' is blocked, item '.$item["uri"].' will not be stored');
1184 $default = ['url' => $item['owner-link'], 'name' => $item['owner-name'],
1185 'photo' => $item['owner-avatar'], 'network' => $item['network']];
1187 $item['owner-id'] = defaults($item, 'owner-id', Contact::getIdForURL($item["owner-link"], 0, false, $default));
1189 if (Contact::isBlocked($item["owner-id"])) {
1190 logger('Contact '.$item["owner-id"].' is blocked, item '.$item["uri"].' will not be stored');
1194 // These fields aren't stored anymore in the item table, they are fetched upon request
1195 unset($item['author-link']);
1196 unset($item['author-name']);
1197 unset($item['author-avatar']);
1199 unset($item['owner-link']);
1200 unset($item['owner-name']);
1201 unset($item['owner-avatar']);
1203 if ($item['network'] == NETWORK_PHANTOM) {
1204 logger('Missing network. Called by: '.System::callstack(), LOGGER_DEBUG);
1206 $contact = Contact::getDetailsByURL($item['author-link'], $item['uid']);
1207 if (!empty($contact['network'])) {
1208 $item['network'] = $contact["network"];
1210 $item['network'] = NETWORK_DFRN;
1212 logger("Set network to " . $item["network"] . " for " . $item["uri"], LOGGER_DEBUG);
1215 // Checking if there is already an item with the same guid
1216 logger('Checking for an item for user '.$item['uid'].' on network '.$item['network'].' with the guid '.$item['guid'], LOGGER_DEBUG);
1217 $condition = ['guid' => $item['guid'], 'network' => $item['network'], 'uid' => $item['uid']];
1218 if (self::exists($condition)) {
1219 logger('found item with guid '.$item['guid'].' for user '.$item['uid'].' on network '.$item['network'], LOGGER_DEBUG);
1223 // Check for hashtags in the body and repair or add hashtag links
1224 self::setHashtags($item);
1226 $item['thr-parent'] = $item['parent-uri'];
1234 if ($item['parent-uri'] === $item['uri']) {
1236 $parent_deleted = 0;
1237 $allow_cid = $item['allow_cid'];
1238 $allow_gid = $item['allow_gid'];
1239 $deny_cid = $item['deny_cid'];
1240 $deny_gid = $item['deny_gid'];
1241 $notify_type = 'wall-new';
1243 // find the parent and snarf the item id and ACLs
1244 // and anything else we need to inherit
1246 $fields = ['uri', 'parent-uri', 'id', 'deleted',
1247 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
1248 'wall', 'private', 'forum_mode', 'origin'];
1249 $condition = ['uri' => $item['parent-uri'], 'uid' => $item['uid']];
1250 $params = ['order' => ['id' => false]];
1251 $parent = self::selectFirst($fields, $condition, $params);
1253 if (DBM::is_result($parent)) {
1254 // is the new message multi-level threaded?
1255 // even though we don't support it now, preserve the info
1256 // and re-attach to the conversation parent.
1258 if ($parent['uri'] != $parent['parent-uri']) {
1259 $item['parent-uri'] = $parent['parent-uri'];
1261 $condition = ['uri' => $item['parent-uri'],
1262 'parent-uri' => $item['parent-uri'],
1263 'uid' => $item['uid']];
1264 $params = ['order' => ['id' => false]];
1265 $toplevel_parent = self::selectFirst($fields, $condition, $params);
1267 if (DBM::is_result($toplevel_parent)) {
1268 $parent = $toplevel_parent;
1272 $parent_id = $parent['id'];
1273 $parent_deleted = $parent['deleted'];
1274 $allow_cid = $parent['allow_cid'];
1275 $allow_gid = $parent['allow_gid'];
1276 $deny_cid = $parent['deny_cid'];
1277 $deny_gid = $parent['deny_gid'];
1278 $item['wall'] = $parent['wall'];
1279 $notify_type = 'comment-new';
1282 * If the parent is private, force privacy for the entire conversation
1283 * This differs from the above settings as it subtly allows comments from
1284 * email correspondents to be private even if the overall thread is not.
1286 if ($parent['private']) {
1287 $item['private'] = $parent['private'];
1291 * Edge case. We host a public forum that was originally posted to privately.
1292 * The original author commented, but as this is a comment, the permissions
1293 * weren't fixed up so it will still show the comment as private unless we fix it here.
1295 if ((intval($parent['forum_mode']) == 1) && $parent['private']) {
1296 $item['private'] = 0;
1299 // If its a post from myself then tag the thread as "mention"
1300 logger("Checking if parent ".$parent_id." has to be tagged as mention for user ".$item['uid'], LOGGER_DEBUG);
1301 $user = dba::selectFirst('user', ['nickname'], ['uid' => $item['uid']]);
1302 if (DBM::is_result($user)) {
1303 $self = normalise_link(System::baseUrl() . '/profile/' . $user['nickname']);
1304 $self_id = Contact::getIdForURL($self, 0, true);
1305 logger("'myself' is ".$self_id." for parent ".$parent_id." checking against ".$item['author-id']." and ".$item['owner-id'], LOGGER_DEBUG);
1306 if (($item['author-id'] == $self_id) || ($item['owner-id'] == $self_id)) {
1307 dba::update('thread', ['mention' => true], ['iid' => $parent_id]);
1308 logger("tagged thread ".$parent_id." as mention for user ".$self, LOGGER_DEBUG);
1313 * Allow one to see reply tweets from status.net even when
1314 * we don't have or can't see the original post.
1316 if ($force_parent) {
1317 logger('$force_parent=true, reply converted to top-level post.');
1319 $item['parent-uri'] = $item['uri'];
1320 $item['gravity'] = GRAVITY_PARENT;
1322 logger('item parent '.$item['parent-uri'].' for '.$item['uid'].' was not found - ignoring item');
1326 $parent_deleted = 0;
1330 $condition = ["`uri` = ? AND `network` IN (?, ?) AND `uid` = ?",
1331 $item['uri'], $item['network'], NETWORK_DFRN, $item['uid']];
1332 if (self::exists($condition)) {
1333 logger('duplicated item with the same uri found. '.print_r($item,true));
1337 // On Friendica and Diaspora the GUID is unique
1338 if (in_array($item['network'], [NETWORK_DFRN, NETWORK_DIASPORA])) {
1339 $condition = ['guid' => $item['guid'], 'uid' => $item['uid']];
1340 if (self::exists($condition)) {
1341 logger('duplicated item with the same guid found. '.print_r($item,true));
1345 // Check for an existing post with the same content. There seems to be a problem with OStatus.
1346 $condition = ["`body` = ? AND `network` = ? AND `created` = ? AND `contact-id` = ? AND `uid` = ?",
1347 $item['body'], $item['network'], $item['created'], $item['contact-id'], $item['uid']];
1348 if (self::exists($condition)) {
1349 logger('duplicated item with the same body found. '.print_r($item,true));
1354 // Is this item available in the global items (with uid=0)?
1355 if ($item["uid"] == 0) {
1356 $item["global"] = true;
1358 // Set the global flag on all items if this was a global item entry
1359 dba::update('item', ['global' => true], ['uri' => $item["uri"]]);
1361 $item["global"] = self::exists(['uid' => 0, 'uri' => $item["uri"]]);
1365 if (strlen($allow_cid) || strlen($allow_gid) || strlen($deny_cid) || strlen($deny_gid)) {
1368 $private = $item['private'];
1371 $item["allow_cid"] = $allow_cid;
1372 $item["allow_gid"] = $allow_gid;
1373 $item["deny_cid"] = $deny_cid;
1374 $item["deny_gid"] = $deny_gid;
1375 $item["private"] = $private;
1376 $item["deleted"] = $parent_deleted;
1378 // Fill the cache field
1379 put_item_in_cache($item);
1382 Addon::callHooks('post_local', $item);
1384 Addon::callHooks('post_remote', $item);
1387 // This array field is used to trigger some automatic reactions
1388 // It is mainly used in the "post_local" hook.
1389 unset($item['api_source']);
1391 if (x($item, 'cancel')) {
1392 logger('post cancelled by addon.');
1397 * Check for already added items.
1398 * There is a timing issue here that sometimes creates double postings.
1399 * An unique index would help - but the limitations of MySQL (maximum size of index values) prevent this.
1401 if ($item["uid"] == 0) {
1402 if (self::exists(['uri' => trim($item['uri']), 'uid' => 0])) {
1403 logger('Global item already stored. URI: '.$item['uri'].' on network '.$item['network'], LOGGER_DEBUG);
1408 logger('' . print_r($item,true), LOGGER_DATA);
1410 if (array_key_exists('tag', $item)) {
1411 $tags = $item['tag'];
1412 unset($item['tag']);
1417 if (array_key_exists('file', $item)) {
1418 $files = $item['file'];
1419 unset($item['file']);
1424 // We are doing this outside of the transaction to avoid timing problems
1425 self::insertContent($item);
1428 $ret = dba::insert('item', $item);
1430 // When the item was successfully stored we fetch the ID of the item.
1431 if (DBM::is_result($ret)) {
1432 $current_post = dba::lastInsertId();
1434 // This can happen - for example - if there are locking timeouts.
1437 // Store the data into a spool file so that we can try again later.
1439 // At first we restore the Diaspora signature that we removed above.
1440 if (isset($encoded_signature)) {
1441 $item['dsprsig'] = $encoded_signature;
1444 // Now we store the data in the spool directory
1445 // We use "microtime" to keep the arrival order and "mt_rand" to avoid duplicates
1446 $file = 'item-'.round(microtime(true) * 10000).'-'.mt_rand().'.msg';
1448 $spoolpath = get_spoolpath();
1449 if ($spoolpath != "") {
1450 $spool = $spoolpath.'/'.$file;
1451 file_put_contents($spool, json_encode($item));
1452 logger("Item wasn't stored - Item was spooled into file ".$file, LOGGER_DEBUG);
1457 if ($current_post == 0) {
1458 // This is one of these error messages that never should occur.
1459 logger("couldn't find created item - we better quit now.");
1464 // How much entries have we created?
1465 // We wouldn't need this query when we could use an unique index - but MySQL has length problems with them.
1466 $entries = dba::count('item', ['uri' => $item['uri'], 'uid' => $item['uid'], 'network' => $item['network']]);
1469 // There are duplicates. We delete our just created entry.
1470 logger('Duplicated post occurred. uri = ' . $item['uri'] . ' uid = ' . $item['uid']);
1472 // Yes, we could do a rollback here - but we are having many users with MyISAM.
1473 dba::delete('item', ['id' => $current_post]);
1476 } elseif ($entries == 0) {
1477 // This really should never happen since we quit earlier if there were problems.
1478 logger("Something is terribly wrong. We haven't found our created entry.");
1483 logger('created item '.$current_post);
1484 self::updateContact($item);
1486 if (!$parent_id || ($item['parent-uri'] === $item['uri'])) {
1487 $parent_id = $current_post;
1491 dba::update('item', ['parent' => $parent_id], ['id' => $current_post]);
1493 $item['id'] = $current_post;
1494 $item['parent'] = $parent_id;
1496 // update the commented timestamp on the parent
1497 // Only update "commented" if it is really a comment
1498 if (($item['gravity'] != GRAVITY_ACTIVITY) || !Config::get("system", "like_no_comment")) {
1499 dba::update('item', ['commented' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
1501 dba::update('item', ['changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
1506 * Friendica servers lower than 3.4.3-2 had double encoded the signature ...
1507 * We can check for this condition when we decode and encode the stuff again.
1509 if (base64_encode(base64_decode(base64_decode($dsprsig->signature))) == base64_decode($dsprsig->signature)) {
1510 $dsprsig->signature = base64_decode($dsprsig->signature);
1511 logger("Repaired double encoded signature from handle ".$dsprsig->signer, LOGGER_DEBUG);
1514 dba::insert('sign', ['iid' => $current_post, 'signed_text' => $dsprsig->signed_text,
1515 'signature' => $dsprsig->signature, 'signer' => $dsprsig->signer]);
1518 if (!empty($diaspora_signed_text)) {
1519 // Formerly we stored the signed text, the signature and the author in different fields.
1520 // We now store the raw data so that we are more flexible.
1521 dba::insert('sign', ['iid' => $current_post, 'signed_text' => $diaspora_signed_text]);
1524 $deleted = self::tagDeliver($item['uid'], $current_post);
1527 * current post can be deleted if is for a community page and no mention are
1530 if (!$deleted && !$dontcache) {
1531 $posted_item = self::selectFirst(self::ITEM_FIELDLIST, ['id' => $current_post]);
1532 if (DBM::is_result($posted_item)) {
1534 Addon::callHooks('post_local_end', $posted_item);
1536 Addon::callHooks('post_remote_end', $posted_item);
1539 logger('new item not found in DB, id ' . $current_post);
1543 if ($item['parent-uri'] === $item['uri']) {
1544 self::addThread($current_post);
1546 self::updateThread($parent_id);
1552 * Due to deadlock issues with the "term" table we are doing these steps after the commit.
1553 * This is not perfect - but a workable solution until we found the reason for the problem.
1555 if (!empty($tags)) {
1556 Term::insertFromTagFieldByItemId($current_post, $tags);
1559 if (!empty($files)) {
1560 Term::insertFromFileFieldByItemId($current_post, $files);
1563 if ($item['parent-uri'] === $item['uri']) {
1564 self::addShadow($current_post);
1566 self::addShadowPost($current_post);
1569 check_user_notification($current_post);
1572 Worker::add(['priority' => $priority, 'dont_fork' => true], "Notifier", $notify_type, $current_post);
1573 } elseif (!empty($parent) && $parent['origin']) {
1574 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "Notifier", "comment-import", $current_post);
1577 return $current_post;
1581 * @brief Insert a new item content entry
1583 * @param array $item The item fields that are to be inserted
1585 private static function insertContent(&$item)
1587 $fields = ['uri' => $item['uri'], 'plink' => $item['plink'],
1588 'uri-plink-hash' => hash('sha1', $item['plink']).hash('sha1', $item['uri'])];
1590 foreach (array_merge(self::CONTENT_FIELDLIST, self::MIXED_CONTENT_FIELDLIST) as $field) {
1591 if (isset($item[$field])) {
1592 $fields[$field] = $item[$field];
1593 unset($item[$field]);
1597 // To avoid timing problems, we are using locks.
1598 $locked = Lock::set('item_insert_content');
1600 logger("Couldn't acquire lock for URI " . $item['uri'] . " - proceeding anyway.");
1603 // Do we already have this content?
1604 $item_content = dba::selectFirst('item-content', ['id'], ['uri' => $item['uri']]);
1605 if (DBM::is_result($item_content)) {
1606 $item['icid'] = $item_content['id'];
1607 logger('Fetched content for URI ' . $item['uri'] . ' (' . $item['icid'] . ')');
1608 } elseif (dba::insert('item-content', $fields)) {
1609 $item['icid'] = dba::lastInsertId();
1610 logger('Inserted content for URI ' . $item['uri'] . ' (' . $item['icid'] . ')');
1612 // By setting the ICID value through the worker we should avoid timing problems.
1613 // When the locking works, this shouldn't be needed. But better be prepared.
1614 Worker::add(PRIORITY_HIGH, 'SetItemContentID', $item['uri']);
1615 logger('Could not insert content for URI ' . $item['uri'] . ' - trying asynchronously');
1618 Lock::remove('item_insert_content');
1623 * @brief Set the item content id for a given URI
1625 * @param string $uri The item URI
1627 public static function setICIDforURI($uri)
1629 $item_content = dba::selectFirst('item-content', ['id'], ['uri' => $uri]);
1630 if (DBM::is_result($item_content)) {
1631 dba::update('item', ['icid' => $item_content['id']], ['icid' => 0, 'uri' => $uri]);
1632 logger('Asynchronously set item content id for URI ' . $uri . ' (' . $item_content['id'] . ') - Affected: '. (int)dba::affected_rows());
1634 logger('No item-content found for URI ' . $uri);
1639 * @brief Update existing item content entries
1641 * @param array $item The item fields that are to be changed
1642 * @param array $condition The condition for finding the item content entries
1644 private static function updateContent($item, $condition)
1646 // We have to select only the fields from the "item-content" table
1648 foreach (array_merge(self::CONTENT_FIELDLIST, self::MIXED_CONTENT_FIELDLIST) as $field) {
1649 if (isset($item[$field])) {
1650 $fields[$field] = $item[$field];
1654 if (empty($fields)) {
1658 if (!empty($item['plink'])) {
1659 $fields['uri-plink-hash'] = hash('sha1', $item['plink']) . hash('sha1', $condition['uri']);
1661 // Ensure that we don't delete the plink
1662 unset($fields['plink']);
1665 logger('Update content for URI ' . $condition['uri']);
1667 dba::update('item-content', $fields, $condition, true);
1671 * @brief Distributes public items to the receivers
1673 * @param integer $itemid Item ID that should be added
1674 * @param string $signed_text Original text (for Diaspora signatures), JSON encoded.
1676 public static function distribute($itemid, $signed_text = '')
1678 $condition = ["`id` IN (SELECT `parent` FROM `item` WHERE `id` = ?)", $itemid];
1679 $parent = self::selectFirst(['owner-id'], $condition);
1680 if (!DBM::is_result($parent)) {
1684 // Only distribute public items from native networks
1685 $condition = ['id' => $itemid, 'uid' => 0,
1686 'network' => [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""],
1687 'visible' => true, 'deleted' => false, 'moderated' => false, 'private' => false];
1688 $item = self::selectFirst(self::ITEM_FIELDLIST, ['id' => $itemid]);
1689 if (!DBM::is_result($item)) {
1694 unset($item['parent']);
1695 unset($item['mention']);
1696 unset($item['wall']);
1697 unset($item['origin']);
1698 unset($item['starred']);
1702 $condition = ["`nurl` IN (SELECT `nurl` FROM `contact` WHERE `id` = ?) AND `uid` != 0 AND NOT `blocked` AND `rel` IN (?, ?)",
1703 $parent['owner-id'], CONTACT_IS_SHARING, CONTACT_IS_FRIEND];
1704 $contacts = dba::select('contact', ['uid'], $condition);
1705 while ($contact = dba::fetch($contacts)) {
1706 $users[$contact['uid']] = $contact['uid'];
1711 if ($item['uri'] != $item['parent-uri']) {
1712 $parents = self::select(['uid', 'origin'], ["`uri` = ? AND `uid` != 0", $item['parent-uri']]);
1713 while ($parent = dba::fetch($parents)) {
1714 $users[$parent['uid']] = $parent['uid'];
1715 if ($parent['origin'] && !$item['origin']) {
1716 $origin_uid = $parent['uid'];
1721 foreach ($users as $uid) {
1722 if ($origin_uid == $uid) {
1723 $item['diaspora_signed_text'] = $signed_text;
1725 self::storeForUser($itemid, $item, $uid);
1730 * @brief Store public items for the receivers
1732 * @param integer $itemid Item ID that should be added
1733 * @param array $item The item entry that will be stored
1734 * @param integer $uid The user that will receive the item entry
1736 private static function storeForUser($itemid, $item, $uid)
1738 $item['uid'] = $uid;
1739 $item['origin'] = 0;
1741 if ($item['uri'] == $item['parent-uri']) {
1742 $item['contact-id'] = Contact::getIdForURL($item['owner-link'], $uid);
1744 $item['contact-id'] = Contact::getIdForURL($item['author-link'], $uid);
1747 if (empty($item['contact-id'])) {
1748 $self = dba::selectFirst('contact', ['id'], ['self' => true, 'uid' => $uid]);
1749 if (!DBM::is_result($self)) {
1752 $item['contact-id'] = $self['id'];
1755 if (in_array($item['type'], ["net-comment", "wall-comment"])) {
1756 $item['type'] = 'remote-comment';
1757 } elseif ($item['type'] == 'wall') {
1758 $item['type'] = 'remote';
1761 /// @todo Handling of "event-id"
1764 if ($item['uri'] == $item['parent-uri']) {
1765 $contact = dba::selectFirst('contact', [], ['id' => $item['contact-id'], 'self' => false]);
1766 if (DBM::is_result($contact)) {
1767 $notify = self::isRemoteSelf($contact, $item);
1771 $distributed = self::insert($item, false, $notify, true);
1773 if (!$distributed) {
1774 logger("Distributed public item " . $itemid . " for user " . $uid . " wasn't stored", LOGGER_DEBUG);
1776 logger("Distributed public item " . $itemid . " for user " . $uid . " with id " . $distributed, LOGGER_DEBUG);
1781 * @brief Add a shadow entry for a given item id that is a thread starter
1783 * We store every public item entry additionally with the user id "0".
1784 * This is used for the community page and for the search.
1785 * It is planned that in the future we will store public item entries only once.
1787 * @param integer $itemid Item ID that should be added
1789 public static function addShadow($itemid)
1791 $fields = ['uid', 'private', 'moderated', 'visible', 'deleted', 'network', 'uri'];
1792 $condition = ['id' => $itemid, 'parent' => [0, $itemid]];
1793 $item = self::selectFirst($fields, $condition);
1795 if (!DBM::is_result($item)) {
1799 // is it already a copy?
1800 if (($itemid == 0) || ($item['uid'] == 0)) {
1804 // Is it a visible public post?
1805 if (!$item["visible"] || $item["deleted"] || $item["moderated"] || $item["private"]) {
1809 // is it an entry from a connector? Only add an entry for natively connected networks
1810 if (!in_array($item["network"], [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""])) {
1814 if (self::exists(['uri' => $item['uri'], 'uid' => 0])) {
1818 $item = self::selectFirst(self::ITEM_FIELDLIST, ['id' => $itemid]);
1820 if (DBM::is_result($item)) {
1821 // Preparing public shadow (removing user specific data)
1824 unset($item['parent']);
1825 unset($item['wall']);
1826 unset($item['mention']);
1827 unset($item['origin']);
1828 unset($item['starred']);
1829 if ($item['uri'] == $item['parent-uri']) {
1830 $item['contact-id'] = $item['owner-id'];
1832 $item['contact-id'] = $item['author-id'];
1835 if (in_array($item['type'], ["net-comment", "wall-comment"])) {
1836 $item['type'] = 'remote-comment';
1837 } elseif ($item['type'] == 'wall') {
1838 $item['type'] = 'remote';
1841 $public_shadow = self::insert($item, false, false, true);
1843 logger("Stored public shadow for thread ".$itemid." under id ".$public_shadow, LOGGER_DEBUG);
1848 * @brief Add a shadow entry for a given item id that is a comment
1850 * This function does the same like the function above - but for comments
1852 * @param integer $itemid Item ID that should be added
1854 public static function addShadowPost($itemid)
1856 $item = self::selectFirst(self::ITEM_FIELDLIST, ['id' => $itemid]);
1857 if (!DBM::is_result($item)) {
1861 // Is it a toplevel post?
1862 if ($item['id'] == $item['parent']) {
1863 self::addShadow($itemid);
1867 // Is this a shadow entry?
1868 if ($item['uid'] == 0) {
1872 // Is there a shadow parent?
1873 if (!self::exists(['uri' => $item['parent-uri'], 'uid' => 0])) {
1877 // Is there already a shadow entry?
1878 if (self::exists(['uri' => $item['uri'], 'uid' => 0])) {
1882 // Save "origin" and "parent" state
1883 $origin = $item['origin'];
1884 $parent = $item['parent'];
1886 // Preparing public shadow (removing user specific data)
1889 unset($item['parent']);
1890 unset($item['wall']);
1891 unset($item['mention']);
1892 unset($item['origin']);
1893 unset($item['starred']);
1894 $item['contact-id'] = Contact::getIdForURL($item['author-link']);
1896 if (in_array($item['type'], ["net-comment", "wall-comment"])) {
1897 $item['type'] = 'remote-comment';
1898 } elseif ($item['type'] == 'wall') {
1899 $item['type'] = 'remote';
1902 $public_shadow = self::insert($item, false, false, true);
1904 logger("Stored public shadow for comment ".$item['uri']." under id ".$public_shadow, LOGGER_DEBUG);
1906 // If this was a comment to a Diaspora post we don't get our comment back.
1907 // This means that we have to distribute the comment by ourselves.
1908 if ($origin && self::exists(['id' => $parent, 'network' => NETWORK_DIASPORA])) {
1909 self::distribute($public_shadow);
1914 * Adds a language specification in a "language" element of given $arr.
1915 * Expects "body" element to exist in $arr.
1917 private static function addLanguageToItemArray(&$item)
1919 $naked_body = Text\BBCode::toPlaintext($item['body'], false);
1921 $ld = new Text_LanguageDetect();
1922 $ld->setNameMode(2);
1923 $languages = $ld->detect($naked_body, 3);
1925 if (is_array($languages)) {
1926 $item['language'] = json_encode($languages);
1931 * @brief Creates an unique guid out of a given uri
1933 * @param string $uri uri of an item entry
1934 * @param string $host hostname for the GUID prefix
1935 * @return string unique guid
1937 public static function guidFromUri($uri, $host)
1939 // Our regular guid routine is using this kind of prefix as well
1940 // We have to avoid that different routines could accidentally create the same value
1941 $parsed = parse_url($uri);
1943 // We use a hash of the hostname as prefix for the guid
1944 $guid_prefix = hash("crc32", $host);
1946 // Remove the scheme to make sure that "https" and "http" doesn't make a difference
1947 unset($parsed["scheme"]);
1949 // Glue it together to be able to make a hash from it
1950 $host_id = implode("/", $parsed);
1952 // We could use any hash algorithm since it isn't a security issue
1953 $host_hash = hash("ripemd128", $host_id);
1955 return $guid_prefix.$host_hash;
1959 * generate an unique URI
1961 * @param integer $uid User id
1962 * @param string $guid An existing GUID (Otherwise it will be generated)
1966 public static function newURI($uid, $guid = "")
1969 $guid = get_guid(32);
1972 $hostname = self::getApp()->get_hostname();
1974 $user = dba::selectFirst('user', ['nickname'], ['uid' => $uid]);
1976 $uri = "urn:X-dfrn:" . $hostname . ':' . $user['nickname'] . ':' . $guid;
1982 * @brief Set "success_update" and "last-item" to the date of the last time we heard from this contact
1984 * This can be used to filter for inactive contacts.
1985 * Only do this for public postings to avoid privacy problems, since poco data is public.
1986 * Don't set this value if it isn't from the owner (could be an author that we don't know)
1988 * @param array $arr Contains the just posted item record
1990 private static function updateContact($arr)
1992 // Unarchive the author
1993 $contact = dba::selectFirst('contact', [], ['id' => $arr["author-id"]]);
1994 if (DBM::is_result($contact)) {
1995 Contact::unmarkForArchival($contact);
1998 // Unarchive the contact if it's not our own contact
1999 $contact = dba::selectFirst('contact', [], ['id' => $arr["contact-id"], 'self' => false]);
2000 if (DBM::is_result($contact)) {
2001 Contact::unmarkForArchival($contact);
2004 $update = (!$arr['private'] && (($arr["author-link"] === $arr["owner-link"]) || ($arr["parent-uri"] === $arr["uri"])));
2006 // Is it a forum? Then we don't care about the rules from above
2007 if (!$update && ($arr["network"] == NETWORK_DFRN) && ($arr["parent-uri"] === $arr["uri"])) {
2008 if (dba::exists('contact', ['id' => $arr['contact-id'], 'forum' => true])) {
2014 dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
2015 ['id' => $arr['contact-id']]);
2017 // Now do the same for the system wide contacts with uid=0
2018 if (!$arr['private']) {
2019 dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
2020 ['id' => $arr['owner-id']]);
2022 if ($arr['owner-id'] != $arr['author-id']) {
2023 dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
2024 ['id' => $arr['author-id']]);
2029 public static function setHashtags(&$item)
2032 $tags = get_tags($item["body"]);
2035 if (!count($tags)) {
2039 // This sorting is important when there are hashtags that are part of other hashtags
2040 // Otherwise there could be problems with hashtags like #test and #test2
2043 $URLSearchString = "^\[\]";
2045 // All hashtags should point to the home server if "local_tags" is activated
2046 if (Config::get('system', 'local_tags')) {
2047 $item["body"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
2048 "#[url=".System::baseUrl()."/search?tag=$2]$2[/url]", $item["body"]);
2050 $item["tag"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
2051 "#[url=".System::baseUrl()."/search?tag=$2]$2[/url]", $item["tag"]);
2054 // mask hashtags inside of url, bookmarks and attachments to avoid urls in urls
2055 $item["body"] = preg_replace_callback("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
2057 return ("[url=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/url]");
2060 $item["body"] = preg_replace_callback("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism",
2062 return ("[bookmark=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/bookmark]");
2065 $item["body"] = preg_replace_callback("/\[attachment (.*)\](.*?)\[\/attachment\]/ism",
2067 return ("[attachment " . str_replace("#", "#", $match[1]) . "]" . $match[2] . "[/attachment]");
2070 // Repair recursive urls
2071 $item["body"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
2072 "#$2", $item["body"]);
2074 foreach ($tags as $tag) {
2075 if ((strpos($tag, '#') !== 0) || strpos($tag, '[url=')) {
2079 $basetag = str_replace('_',' ',substr($tag,1));
2081 $newtag = '#[url=' . System::baseUrl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
2083 $item["body"] = str_replace($tag, $newtag, $item["body"]);
2085 if (!stristr($item["tag"], "/search?tag=" . $basetag . "]" . $basetag . "[/url]")) {
2086 if (strlen($item["tag"])) {
2087 $item["tag"] = ','.$item["tag"];
2089 $item["tag"] = $newtag.$item["tag"];
2093 // Convert back the masked hashtags
2094 $item["body"] = str_replace("#", "#", $item["body"]);
2097 public static function getGuidById($id)
2099 $item = self::selectFirst(['guid'], ['id' => $id]);
2100 if (DBM::is_result($item)) {
2101 return $item['guid'];
2107 public static function getIdAndNickByGuid($guid, $uid = 0)
2113 $uid == local_user();
2116 // Does the given user have this item?
2118 $item = dba::fetch_first("SELECT `item`.`id`, `user`.`nickname` FROM `item`
2119 INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
2120 WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
2121 AND `item`.`guid` = ? AND `item`.`uid` = ?", $guid, $uid);
2122 if (DBM::is_result($item)) {
2124 $nick = $item["nickname"];
2128 // Or is it anywhere on the server?
2130 $item = dba::fetch_first("SELECT `item`.`id`, `user`.`nickname` FROM `item`
2131 INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
2132 WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
2133 AND NOT `item`.`private` AND `item`.`wall`
2134 AND `item`.`guid` = ?", $guid);
2135 if (DBM::is_result($item)) {
2137 $nick = $item["nickname"];
2140 return ["nick" => $nick, "id" => $id];
2144 * look for mention tags and setup a second delivery chain for forum/community posts if appropriate
2146 * @param int $item_id
2147 * @return bool true if item was deleted, else false
2149 private static function tagDeliver($uid, $item_id)
2153 $user = dba::selectFirst('user', [], ['uid' => $uid]);
2154 if (!DBM::is_result($user)) {
2158 $community_page = (($user['page-flags'] == PAGE_COMMUNITY) ? true : false);
2159 $prvgroup = (($user['page-flags'] == PAGE_PRVGROUP) ? true : false);
2161 $item = self::selectFirst(self::ITEM_FIELDLIST, ['id' => $item_id]);
2162 if (!DBM::is_result($item)) {
2166 $link = normalise_link(System::baseUrl() . '/profile/' . $user['nickname']);
2169 * Diaspora uses their own hardwired link URL in @-tags
2170 * instead of the one we supply with webfinger
2172 $dlink = normalise_link(System::baseUrl() . '/u/' . $user['nickname']);
2174 $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism', $item['body'], $matches, PREG_SET_ORDER);
2176 foreach ($matches as $mtch) {
2177 if (link_compare($link, $mtch[1]) || link_compare($dlink, $mtch[1])) {
2179 logger('mention found: ' . $mtch[2]);
2185 if (($community_page || $prvgroup) &&
2186 !$item['wall'] && !$item['origin'] && ($item['id'] == $item['parent'])) {
2187 // mmh.. no mention.. community page or private group... no wall.. no origin.. top-post (not a comment)
2189 logger("no-mention top-level post to community or private group. delete.");
2190 dba::delete('item', ['id' => $item_id]);
2196 $arr = ['item' => $item, 'user' => $user];
2198 Addon::callHooks('tagged', $arr);
2200 if (!$community_page && !$prvgroup) {
2205 * tgroup delivery - setup a second delivery chain
2206 * prevent delivery looping - only proceed
2207 * if the message originated elsewhere and is a top-level post
2209 if ($item['wall'] || $item['origin'] || ($item['id'] != $item['parent'])) {
2213 // now change this copy of the post to a forum head message and deliver to all the tgroup members
2214 $self = dba::selectFirst('contact', ['id', 'name', 'url', 'thumb'], ['uid' => $uid, 'self' => true]);
2215 if (!DBM::is_result($self)) {
2219 $owner_id = Contact::getIdForURL($self['url']);
2221 // also reset all the privacy bits to the forum default permissions
2223 $private = ($user['allow_cid'] || $user['allow_gid'] || $user['deny_cid'] || $user['deny_gid']) ? 1 : 0;
2225 $forum_mode = ($prvgroup ? 2 : 1);
2227 $fields = ['wall' => true, 'origin' => true, 'forum_mode' => $forum_mode, 'contact-id' => $self['id'],
2228 'owner-id' => $owner_id, 'owner-link' => $self['url'], 'private' => $private, 'allow_cid' => $user['allow_cid'],
2229 'allow_gid' => $user['allow_gid'], 'deny_cid' => $user['deny_cid'], 'deny_gid' => $user['deny_gid']];
2230 dba::update('item', $fields, ['id' => $item_id]);
2232 self::updateThread($item_id);
2234 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], 'Notifier', 'tgroup', $item_id);
2237 public static function isRemoteSelf($contact, &$datarray)
2241 if (!$contact['remote_self']) {
2245 // Prevent the forwarding of posts that are forwarded
2246 if ($datarray["extid"] == NETWORK_DFRN) {
2247 logger('Already forwarded', LOGGER_DEBUG);
2251 // Prevent to forward already forwarded posts
2252 if ($datarray["app"] == $a->get_hostname()) {
2253 logger('Already forwarded (second test)', LOGGER_DEBUG);
2257 // Only forward posts
2258 if ($datarray["verb"] != ACTIVITY_POST) {
2259 logger('No post', LOGGER_DEBUG);
2263 if (($contact['network'] != NETWORK_FEED) && $datarray['private']) {
2264 logger('Not public', LOGGER_DEBUG);
2268 $datarray2 = $datarray;
2269 logger('remote-self start - Contact '.$contact['url'].' - '.$contact['remote_self'].' Item '.print_r($datarray, true), LOGGER_DEBUG);
2270 if ($contact['remote_self'] == 2) {
2271 $self = dba::selectFirst('contact', ['id', 'name', 'url', 'thumb'],
2272 ['uid' => $contact['uid'], 'self' => true]);
2273 if (DBM::is_result($self)) {
2274 $datarray['contact-id'] = $self["id"];
2276 $datarray['owner-name'] = $self["name"];
2277 $datarray['owner-link'] = $self["url"];
2278 $datarray['owner-avatar'] = $self["thumb"];
2280 $datarray['author-name'] = $datarray['owner-name'];
2281 $datarray['author-link'] = $datarray['owner-link'];
2282 $datarray['author-avatar'] = $datarray['owner-avatar'];
2284 unset($datarray['created']);
2285 unset($datarray['edited']);
2287 unset($datarray['network']);
2288 unset($datarray['owner-id']);
2289 unset($datarray['author-id']);
2292 if ($contact['network'] != NETWORK_FEED) {
2293 $datarray["guid"] = get_guid(32);
2294 unset($datarray["plink"]);
2295 $datarray["uri"] = self::newURI($contact['uid'], $datarray["guid"]);
2296 $datarray["parent-uri"] = $datarray["uri"];
2297 $datarray["thr-parent"] = $datarray["uri"];
2298 $datarray["extid"] = NETWORK_DFRN;
2299 $urlpart = parse_url($datarray2['author-link']);
2300 $datarray["app"] = $urlpart["host"];
2302 $datarray['private'] = 0;
2306 if ($contact['network'] != NETWORK_FEED) {
2307 // Store the original post
2308 $result = self::insert($datarray2, false, false);
2309 logger('remote-self post original item - Contact '.$contact['url'].' return '.$result.' Item '.print_r($datarray2, true), LOGGER_DEBUG);
2311 $datarray["app"] = "Feed";
2315 // Trigger automatic reactions for addons
2316 $datarray['api_source'] = true;
2318 // We have to tell the hooks who we are - this really should be improved
2319 $_SESSION["authenticated"] = true;
2320 $_SESSION["uid"] = $contact['uid'];
2329 * @param array $item
2333 public static function fixPrivatePhotos($s, $uid, $item = null, $cid = 0)
2335 if (Config::get('system', 'disable_embedded')) {
2339 logger('check for photos', LOGGER_DEBUG);
2340 $site = substr(System::baseUrl(), strpos(System::baseUrl(), '://'));
2345 $img_start = strpos($orig_body, '[img');
2346 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
2347 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
2349 while (($img_st_close !== false) && ($img_len !== false)) {
2350 $img_st_close++; // make it point to AFTER the closing bracket
2351 $image = substr($orig_body, $img_start + $img_st_close, $img_len);
2353 logger('found photo ' . $image, LOGGER_DEBUG);
2355 if (stristr($image, $site . '/photo/')) {
2356 // Only embed locally hosted photos
2358 $i = basename($image);
2359 $i = str_replace(['.jpg', '.png', '.gif'], ['', '', ''], $i);
2360 $x = strpos($i, '-');
2363 $res = substr($i, $x + 1);
2364 $i = substr($i, 0, $x);
2365 $fields = ['data', 'type', 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid'];
2366 $photo = dba::selectFirst('photo', $fields, ['resource-id' => $i, 'scale' => $res, 'uid' => $uid]);
2367 if (DBM::is_result($photo)) {
2369 * Check to see if we should replace this photo link with an embedded image
2370 * 1. No need to do so if the photo is public
2371 * 2. If there's a contact-id provided, see if they're in the access list
2372 * for the photo. If so, embed it.
2373 * 3. Otherwise, if we have an item, see if the item permissions match the photo
2374 * permissions, regardless of order but first check to see if they're an exact
2375 * match to save some processing overhead.
2377 if (self::hasPermissions($photo)) {
2379 $recips = self::enumeratePermissions($photo);
2380 if (in_array($cid, $recips)) {
2384 if (self::samePermissions($item, $photo)) {
2390 $data = $photo['data'];
2391 $type = $photo['type'];
2393 // If a custom width and height were specified, apply before embedding
2394 if (preg_match("/\[img\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
2395 logger('scaling photo', LOGGER_DEBUG);
2397 $width = intval($match[1]);
2398 $height = intval($match[2]);
2400 $Image = new Image($data, $type);
2401 if ($Image->isValid()) {
2402 $Image->scaleDown(max($width, $height));
2403 $data = $Image->asString();
2404 $type = $Image->getType();
2408 logger('replacing photo', LOGGER_DEBUG);
2409 $image = 'data:' . $type . ';base64,' . base64_encode($data);
2410 logger('replaced: ' . $image, LOGGER_DATA);
2416 $new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/img]';
2417 $orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/img]'));
2418 if ($orig_body === false) {
2422 $img_start = strpos($orig_body, '[img');
2423 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
2424 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
2427 $new_body = $new_body . $orig_body;
2432 private static function hasPermissions($obj)
2434 return !empty($obj['allow_cid']) || !empty($obj['allow_gid']) ||
2435 !empty($obj['deny_cid']) || !empty($obj['deny_gid']);
2438 private static function samePermissions($obj1, $obj2)
2440 // first part is easy. Check that these are exactly the same.
2441 if (($obj1['allow_cid'] == $obj2['allow_cid'])
2442 && ($obj1['allow_gid'] == $obj2['allow_gid'])
2443 && ($obj1['deny_cid'] == $obj2['deny_cid'])
2444 && ($obj1['deny_gid'] == $obj2['deny_gid'])) {
2448 // This is harder. Parse all the permissions and compare the resulting set.
2449 $recipients1 = self::enumeratePermissions($obj1);
2450 $recipients2 = self::enumeratePermissions($obj2);
2454 /// @TODO Comparison of arrays, maybe use array_diff_assoc() here?
2455 return ($recipients1 == $recipients2);
2458 // returns an array of contact-ids that are allowed to see this object
2459 private static function enumeratePermissions($obj)
2461 $allow_people = expand_acl($obj['allow_cid']);
2462 $allow_groups = Group::expand(expand_acl($obj['allow_gid']));
2463 $deny_people = expand_acl($obj['deny_cid']);
2464 $deny_groups = Group::expand(expand_acl($obj['deny_gid']));
2465 $recipients = array_unique(array_merge($allow_people, $allow_groups));
2466 $deny = array_unique(array_merge($deny_people, $deny_groups));
2467 $recipients = array_diff($recipients, $deny);
2471 public static function getFeedTags($item)
2475 $cnt = preg_match_all('|\#\[url\=(.*?)\](.*?)\[\/url\]|', $item['tag'], $matches);
2477 for ($x = 0; $x < $cnt; $x ++) {
2478 if ($matches[1][$x]) {
2479 $ret[$matches[2][$x]] = ['#', $matches[1][$x], $matches[2][$x]];
2484 $cnt = preg_match_all('|\@\[url\=(.*?)\](.*?)\[\/url\]|', $item['tag'], $matches);
2486 for ($x = 0; $x < $cnt; $x ++) {
2487 if ($matches[1][$x]) {
2488 $ret[] = ['@', $matches[1][$x], $matches[2][$x]];
2495 public static function expire($uid, $days, $network = "", $force = false)
2497 if (!$uid || ($days < 1)) {
2501 $condition = ["`uid` = ? AND NOT `deleted` AND `id` = `parent` AND `gravity` = ?",
2502 $uid, GRAVITY_PARENT];
2505 * $expire_network_only = save your own wall posts
2506 * and just expire conversations started by others
2508 $expire_network_only = PConfig::get($uid, 'expire', 'network_only', false);
2510 if ($expire_network_only) {
2511 $condition[0] .= " AND NOT `wall`";
2514 if ($network != "") {
2515 $condition[0] .= " AND `network` = ?";
2516 $condition[] = $network;
2519 * There is an index "uid_network_received" but not "uid_network_created"
2520 * This avoids the creation of another index just for one purpose.
2521 * And it doesn't really matter wether to look at "received" or "created"
2523 $condition[0] .= " AND `received` < UTC_TIMESTAMP() - INTERVAL ? DAY";
2524 $condition[] = $days;
2526 $condition[0] .= " AND `created` < UTC_TIMESTAMP() - INTERVAL ? DAY";
2527 $condition[] = $days;
2530 $items = self::select(['file', 'resource-id', 'starred', 'type', 'id'], $condition);
2532 if (!DBM::is_result($items)) {
2536 $expire_items = PConfig::get($uid, 'expire', 'items', true);
2538 // Forcing expiring of items - but not notes and marked items
2540 $expire_items = true;
2543 $expire_notes = PConfig::get($uid, 'expire', 'notes', true);
2544 $expire_starred = PConfig::get($uid, 'expire', 'starred', true);
2545 $expire_photos = PConfig::get($uid, 'expire', 'photos', false);
2549 while ($item = Item::fetch($items)) {
2550 // don't expire filed items
2552 if (strpos($item['file'], '[') !== false) {
2556 // Only expire posts, not photos and photo comments
2558 if (!$expire_photos && strlen($item['resource-id'])) {
2560 } elseif (!$expire_starred && intval($item['starred'])) {
2562 } elseif (!$expire_notes && $item['type'] == 'note') {
2564 } elseif (!$expire_items && $item['type'] != 'note') {
2568 self::deleteById($item['id'], PRIORITY_LOW);
2573 logger('User ' . $uid . ": expired $expired items; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
2576 public static function firstPostDate($uid, $wall = false)
2578 $condition = ['uid' => $uid, 'wall' => $wall, 'deleted' => false, 'visible' => true, 'moderated' => false];
2579 $params = ['order' => ['created' => false]];
2580 $thread = dba::selectFirst('thread', ['created'], $condition, $params);
2581 if (DBM::is_result($thread)) {
2582 return substr(DateTimeFormat::local($thread['created']), 0, 10);
2588 * @brief add/remove activity to an item
2590 * Toggle activities as like,dislike,attend of an item
2592 * @param string $item_id
2593 * @param string $verb
2594 * Activity verb. One of
2595 * like, unlike, dislike, undislike, attendyes, unattendyes,
2596 * attendno, unattendno, attendmaybe, unattendmaybe
2597 * @hook 'post_local_end'
2599 * 'post_id' => ID of posted item
2601 public static function performLike($item_id, $verb)
2603 if (!local_user() && !remote_user()) {
2610 $bodyverb = L10n::t('%1$s likes %2$s\'s %3$s');
2611 $activity = ACTIVITY_LIKE;
2615 $bodyverb = L10n::t('%1$s doesn\'t like %2$s\'s %3$s');
2616 $activity = ACTIVITY_DISLIKE;
2620 $bodyverb = L10n::t('%1$s is attending %2$s\'s %3$s');
2621 $activity = ACTIVITY_ATTEND;
2625 $bodyverb = L10n::t('%1$s is not attending %2$s\'s %3$s');
2626 $activity = ACTIVITY_ATTENDNO;
2629 case 'unattendmaybe':
2630 $bodyverb = L10n::t('%1$s may attend %2$s\'s %3$s');
2631 $activity = ACTIVITY_ATTENDMAYBE;
2634 logger('like: unknown verb ' . $verb . ' for item ' . $item_id);
2638 // Enable activity toggling instead of on/off
2639 $event_verb_flag = $activity === ACTIVITY_ATTEND || $activity === ACTIVITY_ATTENDNO || $activity === ACTIVITY_ATTENDMAYBE;
2641 logger('like: verb ' . $verb . ' item ' . $item_id);
2643 $item = self::selectFirst(self::ITEM_FIELDLIST, ['`id` = ? OR `uri` = ?', $item_id, $item_id]);
2644 if (!DBM::is_result($item)) {
2645 logger('like: unknown item ' . $item_id);
2649 $uid = $item['uid'];
2650 if (($uid == 0) && local_user()) {
2651 $uid = local_user();
2654 if (!can_write_wall($uid)) {
2655 logger('like: unable to write on wall ' . $uid);
2659 // Retrieves the local post owner
2660 $owner_self_contact = dba::selectFirst('contact', [], ['uid' => $uid, 'self' => true]);
2661 if (!DBM::is_result($owner_self_contact)) {
2662 logger('like: unknown owner ' . $uid);
2666 // Retrieve the current logged in user's public contact
2667 $author_id = public_contact();
2669 $author_contact = dba::selectFirst('contact', [], ['id' => $author_id]);
2670 if (!DBM::is_result($author_contact)) {
2671 logger('like: unknown author ' . $author_id);
2675 // Contact-id is the uid-dependant author contact
2676 if (local_user() == $uid) {
2677 $item_contact_id = $owner_self_contact['id'];
2678 $item_contact = $owner_self_contact;
2680 $item_contact_id = Contact::getIdForURL($author_contact['url'], $uid, true);
2681 $item_contact = dba::selectFirst('contact', [], ['id' => $item_contact_id]);
2682 if (!DBM::is_result($item_contact)) {
2683 logger('like: unknown item contact ' . $item_contact_id);
2688 // Look for an existing verb row
2689 // event participation are essentially radio toggles. If you make a subsequent choice,
2690 // we need to eradicate your first choice.
2691 if ($event_verb_flag) {
2692 $verbs = [ACTIVITY_ATTEND, ACTIVITY_ATTENDNO, ACTIVITY_ATTENDMAYBE];
2697 $base_condition = ['verb' => $verbs, 'deleted' => false, 'gravity' => GRAVITY_ACTIVITY,
2698 'author-id' => $author_contact['id'], 'uid' => $item['uid']];
2700 $condition = array_merge($base_condition, ['parent' => $item_id]);
2701 $like_item = self::selectFirst(['id', 'guid', 'verb'], $condition);
2703 if (!DBM::is_result($like_item)) {
2704 $condition = array_merge($base_condition, ['parent-uri' => $item_id]);
2705 $like_item = self::selectFirst(['id', 'guid', 'verb'], $condition);
2708 if (!DBM::is_result($like_item)) {
2709 $condition = array_merge($base_condition, ['thr-parent' => $item_id]);
2710 $like_item = self::selectFirst(['id', 'guid', 'verb'], $condition);
2713 // If it exists, mark it as deleted
2714 if (DBM::is_result($like_item)) {
2715 // Already voted, undo it
2716 $fields = ['deleted' => true, 'unseen' => true, 'changed' => DateTimeFormat::utcNow()];
2717 /// @todo Consider using self::update - but before doing so, check the side effects
2718 dba::update('item', $fields, ['id' => $like_item['id']]);
2720 // Clean up the Diaspora signatures for this like
2721 // Go ahead and do it even if Diaspora support is disabled. We still want to clean up
2722 // if it had been enabled in the past
2723 dba::delete('sign', ['iid' => $like_item['id']]);
2725 $like_item_id = $like_item['id'];
2726 Worker::add(PRIORITY_HIGH, "Notifier", "like", $like_item_id);
2728 if (!$event_verb_flag || $like_item['verb'] == $activity) {
2733 // Verb is "un-something", just trying to delete existing entries
2734 if (strpos($verb, 'un') === 0) {
2738 // Else or if event verb different from existing row, create a new item row
2739 $post_type = (($item['resource-id']) ? L10n::t('photo') : L10n::t('status'));
2740 if ($item['object-type'] === ACTIVITY_OBJ_EVENT) {
2741 $post_type = L10n::t('event');
2743 $objtype = $item['resource-id'] ? ACTIVITY_OBJ_IMAGE : ACTIVITY_OBJ_NOTE ;
2744 $link = xmlify('<link rel="alternate" type="text/html" href="' . System::baseUrl() . '/display/' . $owner_self_contact['nick'] . '/' . $item['id'] . '" />' . "\n") ;
2745 $body = $item['body'];
2750 <type>$objtype</type>
2752 <id>{$item['uri']}</id>
2755 <content>$body</content>
2759 $ulink = '[url=' . $author_contact['url'] . ']' . $author_contact['name'] . '[/url]';
2760 $alink = '[url=' . $item['author-link'] . ']' . $item['author-name'] . '[/url]';
2761 $plink = '[url=' . System::baseUrl() . '/display/' . $owner_self_contact['nick'] . '/' . $item['id'] . ']' . $post_type . '[/url]';
2764 'guid' => get_guid(32),
2765 'uri' => self::newURI($item['uid']),
2766 'uid' => $item['uid'],
2767 'contact-id' => $item_contact_id,
2768 'type' => 'activity',
2769 'wall' => $item['wall'],
2771 'gravity' => GRAVITY_ACTIVITY,
2772 'parent' => $item['id'],
2773 'parent-uri' => $item['uri'],
2774 'thr-parent' => $item['uri'],
2775 'owner-id' => $item['owner-id'],
2776 'owner-name' => $item['owner-name'],
2777 'owner-link' => $item['owner-link'],
2778 'owner-avatar' => $item['owner-avatar'],
2779 'author-id' => $author_contact['id'],
2780 'author-name' => $author_contact['name'],
2781 'author-link' => $author_contact['url'],
2782 'author-avatar' => $author_contact['thumb'],
2783 'body' => sprintf($bodyverb, $ulink, $alink, $plink),
2784 'verb' => $activity,
2785 'object-type' => $objtype,
2787 'allow_cid' => $item['allow_cid'],
2788 'allow_gid' => $item['allow_gid'],
2789 'deny_cid' => $item['deny_cid'],
2790 'deny_gid' => $item['deny_gid'],
2795 $new_item_id = self::insert($new_item);
2797 // If the parent item isn't visible then set it to visible
2798 if (!$item['visible']) {
2799 self::update(['visible' => true], ['id' => $item['id']]);
2802 // Save the author information for the like in case we need to relay to Diaspora
2803 Diaspora::storeLikeSignature($item_contact, $new_item_id);
2805 $new_item['id'] = $new_item_id;
2807 Addon::callHooks('post_local_end', $new_item);
2809 Worker::add(PRIORITY_HIGH, "Notifier", "like", $new_item_id);
2814 private static function addThread($itemid, $onlyshadow = false)
2816 $fields = ['uid', 'created', 'edited', 'commented', 'received', 'changed', 'wall', 'private', 'pubmail',
2817 'moderated', 'visible', 'starred', 'bookmark', 'contact-id',
2818 'deleted', 'origin', 'forum_mode', 'mention', 'network', 'author-id', 'owner-id'];
2819 $condition = ["`id` = ? AND (`parent` = ? OR `parent` = 0)", $itemid, $itemid];
2820 $item = self::selectFirst($fields, $condition);
2822 if (!DBM::is_result($item)) {
2826 $item['iid'] = $itemid;
2829 $result = dba::insert('thread', $item);
2831 logger("Add thread for item ".$itemid." - ".print_r($result, true), LOGGER_DEBUG);
2835 private static function updateThread($itemid, $setmention = false)
2837 $fields = ['uid', 'guid', 'created', 'edited', 'commented', 'received', 'changed',
2838 'wall', 'private', 'pubmail', 'moderated', 'visible', 'starred', 'bookmark', 'contact-id',
2839 'deleted', 'origin', 'forum_mode', 'network', 'author-id', 'owner-id'];
2840 $condition = ["`id` = ? AND (`parent` = ? OR `parent` = 0)", $itemid, $itemid];
2842 $item = self::selectFirst($fields, $condition);
2843 if (!DBM::is_result($item)) {
2848 $item["mention"] = 1;
2855 foreach ($item as $field => $data) {
2856 if (!in_array($field, ["guid"])) {
2857 $fields[$field] = $data;
2861 $result = dba::update('thread', $fields, ['iid' => $itemid]);
2863 logger("Update thread for item ".$itemid." - guid ".$item["guid"]." - ".(int)$result, LOGGER_DEBUG);
2866 private static function deleteThread($itemid, $itemuri = "")
2868 $item = dba::selectFirst('thread', ['uid'], ['iid' => $itemid]);
2869 if (!DBM::is_result($item)) {
2870 logger('No thread found for id '.$itemid, LOGGER_DEBUG);
2874 // Using dba::delete at this time could delete the associated item entries
2875 $result = dba::e("DELETE FROM `thread` WHERE `iid` = ?", $itemid);
2877 logger("deleteThread: Deleted thread for item ".$itemid." - ".print_r($result, true), LOGGER_DEBUG);
2879 if ($itemuri != "") {
2880 $condition = ["`uri` = ? AND NOT `deleted` AND NOT (`uid` IN (?, 0))", $itemuri, $item["uid"]];
2881 if (!self::exists($condition)) {
2882 dba::delete('item', ['uri' => $itemuri, 'uid' => 0]);
2883 logger("deleteThread: Deleted shadow for item ".$itemuri, LOGGER_DEBUG);