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;
28 use Text_LanguageDetect;
30 require_once 'boot.php';
31 require_once 'include/items.php';
32 require_once 'include/text.php';
34 class Item extends BaseObject
36 // Field list that is used to display the items
37 const DISPLAY_FIELDLIST = ['uid', 'id', 'parent', 'uri', 'thr-parent', 'parent-uri', 'guid', 'network',
38 'commented', 'created', 'edited', 'received', 'verb', 'object-type', 'postopts', 'plink',
39 'wall', 'private', 'starred', 'origin', 'title', 'body', 'file', 'attach',
40 'content-warning', 'location', 'coord', 'app', 'rendered-hash', 'rendered-html', 'object',
41 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid', 'item_id',
42 'author-id', 'author-link', 'author-name', 'author-avatar',
43 'owner-id', 'owner-link', 'owner-name', 'owner-avatar',
44 'contact-id', 'contact-link', 'contact-name', 'contact-avatar',
45 'writable', 'self', 'cid', 'alias',
46 'event-id', 'event-created', 'event-edited', 'event-start', 'event-finish',
47 'event-summary', 'event-desc', 'event-location', 'event-type',
48 'event-nofinish', 'event-adjust', 'event-ignore', 'event-id'];
50 // Field list that is used to deliver items via the protocols
51 const DELIVER_FIELDLIST = ['uid', 'id', 'parent', 'uri', 'thr-parent', 'parent-uri', 'guid',
52 'created', 'edited', 'verb', 'object-type', 'object', 'target',
53 'private', 'title', 'body', 'location', 'coord', 'app',
54 'attach', 'tag', 'bookmark', 'deleted', 'extid',
55 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
56 'author-id', 'author-link', 'owner-link', 'contact-uid',
57 'signed_text', 'signature', 'signer'];
59 const CONTENT_FIELDLIST = ['title', 'content-warning', 'body', 'location',
60 'coord', 'app', 'rendered-hash', 'rendered-html',
61 'object-type', 'object', 'target-type', 'target'];
64 * @brief Fetch a single item row
66 * @param mixed $stmt statement object
67 * @return array current row
69 public static function fetch($stmt)
71 $row = dba::fetch($stmt);
73 // Fetch data from the item-content table whenever there is content there
74 foreach (self::CONTENT_FIELDLIST as $field) {
75 if (is_null($row[$field]) && !is_null($row['item-' . $field])) {
76 $row[$field] = $row['item-' . $field];
78 unset($row['item-' . $field]);
81 // We prefer the data from the user's contact over the public one
82 if (!empty($row['author-link']) && !empty($row['contact-link']) &&
83 ($row['author-link'] == $row['contact-link'])) {
84 if (isset($row['author-avatar']) && !empty($row['contact-avatar'])) {
85 $row['author-avatar'] = $row['contact-avatar'];
87 if (isset($row['author-name']) && !empty($row['contact-name'])) {
88 $row['author-name'] = $row['contact-name'];
92 if (!empty($row['owner-link']) && !empty($row['contact-link']) &&
93 ($row['owner-link'] == $row['contact-link'])) {
94 if (isset($row['owner-avatar']) && !empty($row['contact-avatar'])) {
95 $row['owner-avatar'] = $row['contact-avatar'];
97 if (isset($row['owner-name']) && !empty($row['contact-name'])) {
98 $row['owner-name'] = $row['contact-name'];
102 // We can always comment on posts from these networks
103 if (isset($row['writable']) && !empty($row['network']) &&
104 in_array($row['network'], [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS])) {
105 $row['writable'] = true;
112 * @brief Fills an array with data from an item query
114 * @param object $stmt statement object
115 * @return array Data array
117 public static function inArray($stmt, $do_close = true) {
118 if (is_bool($stmt)) {
123 while ($row = self::fetch($stmt)) {
133 * Retrieve a single record from the item table for a given user and returns it in an associative array
135 * @brief Retrieve a single record from a table
136 * @param integer $uid User ID
137 * @param array $fields
138 * @param array $condition
139 * @param array $params
143 public static function selectFirstForUser($uid, array $selected = [], array $condition = [], $params = [])
145 $params['uid'] = $uid;
147 if (empty($selected)) {
148 $selected = Item::DISPLAY_FIELDLIST;
151 return self::selectFirst($selected, $condition, $params);
155 * @brief Select rows from the item table for a given user
157 * @param integer $uid User ID
158 * @param array $selected Array of selected fields, empty for all
159 * @param array $condition Array of fields for condition
160 * @param array $params Array of several parameters
162 * @return boolean|object
164 public static function selectForUser($uid, array $selected = [], array $condition = [], $params = [])
166 $params['uid'] = $uid;
168 if (empty($selected)) {
169 $selected = Item::DISPLAY_FIELDLIST;
172 return self::select($selected, $condition, $params);
176 * Retrieve a single record from the item table and returns it in an associative array
178 * @brief Retrieve a single record from a table
179 * @param array $fields
180 * @param array $condition
181 * @param array $params
185 public static function selectFirst(array $fields = [], array $condition = [], $params = [])
187 $params['limit'] = 1;
189 $result = self::select($fields, $condition, $params);
191 if (is_bool($result)) {
194 $row = self::fetch($result);
201 * @brief Select rows from the item table
203 * @param array $selected Array of selected fields, empty for all
204 * @param array $condition Array of fields for condition
205 * @param array $params Array of several parameters
207 * @return boolean|object
209 public static function select(array $selected = [], array $condition = [], $params = [])
214 if (isset($params['uid'])) {
215 $uid = $params['uid'];
219 $fields = self::fieldlist($selected);
221 $select_fields = self::constructSelectFields($fields, $selected);
223 $condition_string = dba::buildCondition($condition);
225 $condition_string = self::addTablesToFields($condition_string, $fields);
228 $condition_string = $condition_string . ' AND ' . self::condition(false);
231 $param_string = self::addTablesToFields(dba::buildParameter($params), $fields);
233 $table = "`item` " . self::constructJoins($uid, $select_fields . $condition_string . $param_string, false);
235 $sql = "SELECT " . $select_fields . " FROM " . $table . $condition_string . $param_string;
237 return dba::p($sql, $condition);
241 * @brief Select rows from the starting post in the item table
243 * @param integer $uid User ID
244 * @param array $fields Array of selected fields, empty for all
245 * @param array $condition Array of fields for condition
246 * @param array $params Array of several parameters
248 * @return boolean|object
250 public static function selectThreadForUser($uid, array $selected = [], array $condition = [], $params = [])
252 $params['uid'] = $uid;
254 if (empty($selected)) {
255 $selected = Item::DISPLAY_FIELDLIST;
258 return self::selectThread($selected, $condition, $params);
262 * Retrieve a single record from the starting post in the item table and returns it in an associative array
264 * @brief Retrieve a single record from a table
265 * @param integer $uid User ID
266 * @param array $selected
267 * @param array $condition
268 * @param array $params
272 public static function selectFirstThreadForUser($uid, array $selected = [], array $condition = [], $params = [])
274 $params['uid'] = $uid;
276 if (empty($selected)) {
277 $selected = Item::DISPLAY_FIELDLIST;
280 return self::selectFirstThread($selected, $condition, $params);
284 * Retrieve a single record from the starting post in the item table and returns it in an associative array
286 * @brief Retrieve a single record from a table
287 * @param array $fields
288 * @param array $condition
289 * @param array $params
293 public static function selectFirstThread(array $fields = [], array $condition = [], $params = [])
295 $params['limit'] = 1;
296 $result = self::selectThread($fields, $condition, $params);
298 if (is_bool($result)) {
301 $row = self::fetch($result);
308 * @brief Select rows from the starting post in the item table
310 * @param array $selected Array of selected fields, empty for all
311 * @param array $condition Array of fields for condition
312 * @param array $params Array of several parameters
314 * @return boolean|object
316 public static function selectThread(array $selected = [], array $condition = [], $params = [])
321 if (isset($params['uid'])) {
322 $uid = $params['uid'];
326 $fields = self::fieldlist($selected);
328 $threadfields = ['thread' => ['iid', 'uid', 'contact-id', 'owner-id', 'author-id',
329 'created', 'edited', 'commented', 'received', 'changed', 'wall', 'private',
330 'pubmail', 'moderated', 'visible', 'starred', 'ignored', 'bookmark',
331 'unseen', 'deleted', 'origin', 'forum_mode', 'mention', 'network']];
333 $select_fields = self::constructSelectFields($fields, $selected);
335 $condition_string = dba::buildCondition($condition);
337 $condition_string = self::addTablesToFields($condition_string, $threadfields);
338 $condition_string = self::addTablesToFields($condition_string, $fields);
341 $condition_string = $condition_string . ' AND ' . self::condition(true);
344 $param_string = dba::buildParameter($params);
345 $param_string = self::addTablesToFields($param_string, $threadfields);
346 $param_string = self::addTablesToFields($param_string, $fields);
348 $table = "`thread` " . self::constructJoins($uid, $select_fields . $condition_string . $param_string, true);
350 $sql = "SELECT " . $select_fields . " FROM " . $table . $condition_string . $param_string;
352 return dba::p($sql, $condition);
356 * @brief Returns a list of fields that are associated with the item table
358 * @return array field list
360 private static function fieldlist($selected)
364 $fields['item'] = ['id', 'uid', 'parent', 'uri', 'parent-uri', 'thr-parent', 'guid',
365 'contact-id', 'owner-id', 'author-id', 'type', 'wall', 'gravity', 'extid',
366 'created', 'edited', 'commented', 'received', 'changed', 'verb',
367 'postopts', 'plink', 'resource-id', 'event-id', 'tag', 'attach', 'inform',
368 'file', 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
369 'private', 'pubmail', 'moderated', 'visible', 'starred', 'bookmark',
370 'unseen', 'deleted', 'origin', 'forum_mode', 'mention', 'global',
371 'id' => 'item_id', 'network'];
373 $fields['item-content'] = self::CONTENT_FIELDLIST;
375 $fields['author'] = ['url' => 'author-link', 'name' => 'author-name',
376 'thumb' => 'author-avatar', 'nick' => 'author-nick'];
378 $fields['owner'] = ['url' => 'owner-link', 'name' => 'owner-name',
379 'thumb' => 'owner-avatar', 'nick' => 'owner-nick'];
381 $fields['contact'] = ['url' => 'contact-link', 'name' => 'contact-name', 'thumb' => 'contact-avatar',
382 'writable', 'self', 'id' => 'cid', 'alias', 'uid' => 'contact-uid',
383 'photo', 'name-date', 'uri-date', 'avatar-date', 'thumb', 'dfrn-id'];
385 $fields['parent-item'] = ['guid' => 'parent-guid', 'network' => 'parent-network'];
387 $fields['parent-item-author'] = ['url' => 'parent-author-link', 'name' => 'parent-author-name'];
389 $fields['event'] = ['created' => 'event-created', 'edited' => 'event-edited',
390 'start' => 'event-start','finish' => 'event-finish',
391 'summary' => 'event-summary','desc' => 'event-desc',
392 'location' => 'event-location', 'type' => 'event-type',
393 'nofinish' => 'event-nofinish','adjust' => 'event-adjust',
394 'ignore' => 'event-ignore', 'id' => 'event-id'];
396 $fields['sign'] = ['signed_text', 'signature', 'signer'];
402 * @brief Returns SQL condition for the "select" functions
404 * @param boolean $thread_mode Called for the items (false) or for the threads (true)
406 * @return string SQL condition
408 private static function condition($thread_mode)
411 $master_table = "`thread`";
413 $master_table = "`item`";
415 return "$master_table.`visible` AND NOT $master_table.`deleted` AND NOT $master_table.`moderated` AND (`user-item`.`hidden` IS NULL OR NOT `user-item`.`hidden`) ";
419 * @brief Returns all needed "JOIN" commands for the "select" functions
421 * @param integer $uid User ID
422 * @param string $sql_commands The parts of the built SQL commands in the "select" functions
423 * @param boolean $thread_mode Called for the items (false) or for the threads (true)
425 * @return string The SQL joins for the "select" functions
427 private static function constructJoins($uid, $sql_commands, $thread_mode)
430 $master_table = "`thread`";
431 $master_table_key = "`thread`.`iid`";
432 $joins = "STRAIGHT_JOIN `item` ON `item`.`id` = `thread`.`iid` ";
434 $master_table = "`item`";
435 $master_table_key = "`item`.`id`";
439 $joins .= sprintf("STRAIGHT_JOIN `contact` ON `contact`.`id` = $master_table.`contact-id`
440 AND NOT `contact`.`blocked`
441 AND ((NOT `contact`.`readonly` AND NOT `contact`.`pending` AND (`contact`.`rel` IN (%s, %s)))
442 OR `contact`.`self` OR (`item`.`id` != `item`.`parent`) OR `contact`.`uid` = 0)
443 STRAIGHT_JOIN `contact` AS `author` ON `author`.`id` = $master_table.`author-id` AND NOT `author`.`blocked`
444 STRAIGHT_JOIN `contact` AS `owner` ON `owner`.`id` = $master_table.`owner-id` AND NOT `owner`.`blocked`
445 LEFT JOIN `user-item` ON `user-item`.`iid` = $master_table_key AND `user-item`.`uid` = %d",
446 CONTACT_IS_SHARING, CONTACT_IS_FRIEND, intval($uid));
448 if (strpos($sql_commands, "`group_member`.") !== false) {
449 $joins .= " STRAIGHT_JOIN `group_member` ON `group_member`.`contact-id` = $master_table.`contact-id`";
452 if (strpos($sql_commands, "`user`.") !== false) {
453 $joins .= " STRAIGHT_JOIN `user` ON `user`.`uid` = $master_table.`uid`";
456 if (strpos($sql_commands, "`event`.") !== false) {
457 $joins .= " LEFT JOIN `event` ON `event-id` = `event`.`id`";
460 if (strpos($sql_commands, "`sign`.") !== false) {
461 $joins .= " LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id`";
464 if (strpos($sql_commands, "`item-content`.") !== false) {
465 $joins .= " LEFT JOIN `item-content` ON `item-content`.`id` = `item`.`icid`";
468 if ((strpos($sql_commands, "`parent-item`.") !== false) || (strpos($sql_commands, "`parent-author`.") !== false)) {
469 $joins .= " STRAIGHT_JOIN `item` AS `parent-item` ON `parent-item`.`id` = `item`.`parent`";
472 if (strpos($sql_commands, "`parent-item-author`.") !== false) {
473 $joins .= " STRAIGHT_JOIN `contact` AS `parent-item-author` ON `parent-item-author`.`id` = `parent-item`.`author-id`";
480 * @brief Add the field list for the "select" functions
482 * @param array $fields The field definition array
483 * @param array $selected The array with the selected fields from the "select" functions
485 * @return string The field list
487 private static function constructSelectFields($fields, $selected)
490 foreach ($fields as $table => $table_fields) {
491 foreach ($table_fields as $field => $select) {
492 if (empty($selected) || in_array($select, $selected)) {
493 if (in_array($select, self::CONTENT_FIELDLIST)) {
494 $selection[] = "`item`.`".$select."` AS `item-" . $select . "`";
496 if (is_int($field)) {
497 $selection[] = "`" . $table . "`.`" . $select . "`";
499 $selection[] = "`" . $table . "`.`" . $field . "` AS `" . $select . "`";
504 return implode(", ", $selection);
508 * @brief add table definition to fields in an SQL query
510 * @param string $query SQL query
511 * @param array $fields The field definition array
513 * @return string the changed SQL query
515 private static function addTablesToFields($query, $fields)
517 foreach ($fields as $table => $table_fields) {
518 foreach ($table_fields as $alias => $field) {
519 if (is_int($alias)) {
520 $replace_field = $field;
522 $replace_field = $alias;
525 $search = "/([^\.])`" . $field . "`/i";
526 $replace = "$1`" . $table . "`.`" . $replace_field . "`";
527 $query = preg_replace($search, $replace, $query);
534 * @brief Update existing item entries
536 * @param array $fields The fields that are to be changed
537 * @param array $condition The condition for finding the item entries
539 * In the future we may have to change permissions as well.
540 * Then we had to add the user id as third parameter.
542 * A return value of "0" doesn't mean an error - but that 0 rows had been changed.
544 * @return integer|boolean number of affected rows - or "false" if there was an error
546 public static function update(array $fields, array $condition)
548 if (empty($condition) || empty($fields)) {
552 // To ensure the data integrity we do it in an transaction
555 // We cannot simply expand the condition to check for origin entries
556 // The condition needn't to be a simple array but could be a complex condition.
557 // And we have to execute this query before the update to ensure to fetch the same data.
558 $items = dba::select('item', ['id', 'origin', 'uri'], $condition);
560 $content_fields = [];
561 foreach (self::CONTENT_FIELDLIST as $field) {
562 if (isset($fields[$field])) {
563 $content_fields[$field] = $fields[$field];
564 unset($fields[$field]);
568 if (!empty($fields)) {
569 $success = dba::update('item', $fields, $condition);
578 // When there is no content for the "old" item table, this will count the fetched items
579 $rows = dba::affected_rows();
581 while ($item = dba::fetch($items)) {
582 self::updateContent($content_fields, ['id' => $item['icid']]);
583 Term::insertFromTagFieldByItemId($item['id']);
584 Term::insertFromFileFieldByItemId($item['id']);
585 self::updateThread($item['id']);
587 // We only need to notfiy others when it is an original entry from us.
588 // Only call the notifier when the item has some content relevant change.
589 if ($item['origin'] && in_array('edited', array_keys($fields))) {
590 Worker::add(PRIORITY_HIGH, "Notifier", 'edit_post', $item['id']);
600 * @brief Delete an item and notify others about it - if it was ours
602 * @param array $condition The condition for finding the item entries
603 * @param integer $priority Priority for the notification
605 public static function delete($condition, $priority = PRIORITY_HIGH)
607 $items = dba::select('item', ['id'], $condition);
608 while ($item = dba::fetch($items)) {
609 self::deleteById($item['id'], $priority);
615 * @brief Delete an item for an user and notify others about it - if it was ours
617 * @param array $condition The condition for finding the item entries
618 * @param integer $uid User who wants to delete this item
620 public static function deleteForUser($condition, $uid)
626 $items = dba::select('item', ['id', 'uid'], $condition);
627 while ($item = dba::fetch($items)) {
628 // "Deleting" global items just means hiding them
629 if ($item['uid'] == 0) {
630 dba::update('user-item', ['hidden' => true], ['iid' => $item['id'], 'uid' => $uid], true);
631 } elseif ($item['uid'] == $uid) {
632 self::deleteById($item['id'], PRIORITY_HIGH);
634 logger('Wrong ownership. Not deleting item ' . $item['id']);
641 * @brief Delete an item and notify others about it - if it was ours
643 * @param integer $item_id Item ID that should be delete
644 * @param integer $priority Priority for the notification
646 * @return boolean success
648 private static function deleteById($item_id, $priority = PRIORITY_HIGH)
650 // locate item to be deleted
651 $fields = ['id', 'uri', 'uid', 'parent', 'parent-uri', 'origin',
652 'deleted', 'file', 'resource-id', 'event-id', 'attach',
653 'verb', 'object-type', 'object', 'target', 'contact-id'];
654 $item = dba::selectFirst('item', $fields, ['id' => $item_id]);
655 if (!DBM::is_result($item)) {
656 logger('Item with ID ' . $item_id . " hasn't been found.", LOGGER_DEBUG);
660 if ($item['deleted']) {
661 logger('Item with ID ' . $item_id . ' has already been deleted.', LOGGER_DEBUG);
665 $parent = dba::selectFirst('item', ['origin'], ['id' => $item['parent']]);
666 if (!DBM::is_result($parent)) {
667 $parent = ['origin' => false];
670 // clean up categories and tags so they don't end up as orphans
673 $cnt = preg_match_all('/<(.*?)>/', $item['file'], $matches, PREG_SET_ORDER);
675 foreach ($matches as $mtch) {
676 file_tag_unsave_file($item['uid'], $item['id'], $mtch[1],true);
682 $cnt = preg_match_all('/\[(.*?)\]/', $item['file'], $matches, PREG_SET_ORDER);
684 foreach ($matches as $mtch) {
685 file_tag_unsave_file($item['uid'], $item['id'], $mtch[1],false);
690 * If item is a link to a photo resource, nuke all the associated photos
691 * (visitors will not have photo resources)
692 * This only applies to photos uploaded from the photos page. Photos inserted into a post do not
693 * generate a resource-id and therefore aren't intimately linked to the item.
695 if (strlen($item['resource-id'])) {
696 dba::delete('photo', ['resource-id' => $item['resource-id'], 'uid' => $item['uid']]);
699 // If item is a link to an event, delete the event.
700 if (intval($item['event-id'])) {
701 Event::delete($item['event-id']);
704 // If item has attachments, drop them
705 foreach (explode(", ", $item['attach']) as $attach) {
706 preg_match("|attach/(\d+)|", $attach, $matches);
707 dba::delete('attach', ['id' => $matches[1], 'uid' => $item['uid']]);
710 // Delete tags that had been attached to other items
711 self::deleteTagsFromItem($item);
713 // Set the item to "deleted"
714 dba::update('item', ['deleted' => true, 'title' => '', 'body' => '',
715 'edited' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()],
716 ['id' => $item['id']]);
718 Term::insertFromTagFieldByItemId($item['id']);
719 Term::insertFromFileFieldByItemId($item['id']);
720 self::deleteThread($item['id'], $item['parent-uri']);
722 if (!dba::exists('item', ["`uri` = ? AND `uid` != 0 AND NOT `deleted`", $item['uri']])) {
723 self::delete(['uri' => $item['uri'], 'uid' => 0, 'deleted' => false], $priority);
726 // If it's the parent of a comment thread, kill all the kids
727 if ($item['id'] == $item['parent']) {
728 self::delete(['parent' => $item['parent'], 'deleted' => false], $priority);
731 // Is it our comment and/or our thread?
732 if ($item['origin'] || $parent['origin']) {
734 // When we delete the original post we will delete all existing copies on the server as well
735 self::delete(['uri' => $item['uri'], 'deleted' => false], $priority);
737 // send the notification upstream/downstream
738 Worker::add(['priority' => $priority, 'dont_fork' => true], "Notifier", "drop", intval($item['id']));
739 } elseif ($item['uid'] != 0) {
741 // When we delete just our local user copy of an item, we have to set a marker to hide it
742 $global_item = dba::selectFirst('item', ['id'], ['uri' => $item['uri'], 'uid' => 0, 'deleted' => false]);
743 if (DBM::is_result($global_item)) {
744 dba::update('user-item', ['hidden' => true], ['iid' => $global_item['id'], 'uid' => $item['uid']], true);
748 logger('Item with ID ' . $item_id . " has been deleted.", LOGGER_DEBUG);
753 private static function deleteTagsFromItem($item)
755 if (($item["verb"] != ACTIVITY_TAG) || ($item["object-type"] != ACTIVITY_OBJ_TAGTERM)) {
759 $xo = XML::parseString($item["object"], false);
760 $xt = XML::parseString($item["target"], false);
762 if ($xt->type != ACTIVITY_OBJ_NOTE) {
766 $i = dba::selectFirst('item', ['id', 'contact-id', 'tag'], ['uri' => $xt->id, 'uid' => $item['uid']]);
767 if (!DBM::is_result($i)) {
771 // For tags, the owner cannot remove the tag on the author's copy of the post.
772 $owner_remove = ($item["contact-id"] == $i["contact-id"]);
773 $author_copy = $item["origin"];
775 if (($owner_remove && $author_copy) || !$owner_remove) {
779 $tags = explode(',', $i["tag"]);
782 foreach ($tags as $tag) {
783 if (trim($tag) !== trim($xo->body)) {
784 $newtags[] = trim($tag);
788 self::update(['tag' => implode(',', $newtags)], ['id' => $i["id"]]);
791 private static function guid($item, $notify)
793 $guid = notags(trim($item['guid']));
800 // We have to avoid duplicates. So we create the GUID in form of a hash of the plink or uri.
801 // We add the hash of our own host because our host is the original creator of the post.
802 $prefix_host = get_app()->get_hostname();
806 // We are only storing the post so we create a GUID from the original hostname.
807 if (!empty($item['author-link'])) {
808 $parsed = parse_url($item['author-link']);
809 if (!empty($parsed['host'])) {
810 $prefix_host = $parsed['host'];
814 if (empty($prefix_host) && !empty($item['plink'])) {
815 $parsed = parse_url($item['plink']);
816 if (!empty($parsed['host'])) {
817 $prefix_host = $parsed['host'];
821 if (empty($prefix_host) && !empty($item['uri'])) {
822 $parsed = parse_url($item['uri']);
823 if (!empty($parsed['host'])) {
824 $prefix_host = $parsed['host'];
828 // Is it in the format data@host.tld? - Used for mail contacts
829 if (empty($prefix_host) && !empty($item['author-link']) && strstr($item['author-link'], '@')) {
830 $mailparts = explode('@', $item['author-link']);
831 $prefix_host = array_pop($mailparts);
835 if (!empty($item['plink'])) {
836 $guid = self::guidFromUri($item['plink'], $prefix_host);
837 } elseif (!empty($item['uri'])) {
838 $guid = self::guidFromUri($item['uri'], $prefix_host);
840 $guid = get_guid(32, hash('crc32', $prefix_host));
846 private static function contactId($item)
848 $contact_id = (int)$item["contact-id"];
850 if (!empty($contact_id)) {
853 logger('Missing contact-id. Called by: '.System::callstack(), LOGGER_DEBUG);
855 * First we are looking for a suitable contact that matches with the author of the post
856 * This is done only for comments
858 if ($item['parent-uri'] != $item['uri']) {
859 $contact_id = Contact::getIdForURL($item['author-link'], $item['uid']);
862 // If not present then maybe the owner was found
863 if ($contact_id == 0) {
864 $contact_id = Contact::getIdForURL($item['owner-link'], $item['uid']);
867 // Still missing? Then use the "self" contact of the current user
868 if ($contact_id == 0) {
869 $self = dba::selectFirst('contact', ['id'], ['self' => true, 'uid' => $item['uid']]);
870 if (DBM::is_result($self)) {
871 $contact_id = $self["id"];
874 logger("Contact-id was missing for post ".$item['guid']." from user id ".$item['uid']." - now set to ".$contact_id, LOGGER_DEBUG);
879 public static function insert($item, $force_parent = false, $notify = false, $dontcache = false)
883 // If it is a posting where users should get notifications, then define it as wall posting
886 $item['type'] = 'wall';
888 $item['network'] = NETWORK_DFRN;
889 $item['protocol'] = PROTOCOL_DFRN;
891 if (is_int($notify)) {
894 $priority = PRIORITY_HIGH;
897 $item['network'] = trim(defaults($item, 'network', NETWORK_PHANTOM));
900 $item['guid'] = self::guid($item, $notify);
901 $item['uri'] = notags(trim(defaults($item, 'uri', self::newURI($item['uid'], $item['guid']))));
903 // Store conversation data
904 $item = Conversation::insert($item);
907 * If a Diaspora signature structure was passed in, pull it out of the
908 * item array and set it aside for later storage.
912 if (x($item, 'dsprsig')) {
913 $encoded_signature = $item['dsprsig'];
914 $dsprsig = json_decode(base64_decode($item['dsprsig']));
915 unset($item['dsprsig']);
918 if (!empty($item['diaspora_signed_text'])) {
919 $diaspora_signed_text = $item['diaspora_signed_text'];
920 unset($item['diaspora_signed_text']);
922 $diaspora_signed_text = '';
925 // Converting the plink
926 /// @TODO Check if this is really still needed
927 if ($item['network'] == NETWORK_OSTATUS) {
928 if (isset($item['plink'])) {
929 $item['plink'] = OStatus::convertHref($item['plink']);
930 } elseif (isset($item['uri'])) {
931 $item['plink'] = OStatus::convertHref($item['uri']);
935 if (!empty($item['thr-parent'])) {
936 $item['parent-uri'] = $item['thr-parent'];
939 if (x($item, 'gravity')) {
940 $item['gravity'] = intval($item['gravity']);
941 } elseif ($item['parent-uri'] === $item['uri']) {
942 $item['gravity'] = 0;
943 } elseif (activity_match($item['verb'],ACTIVITY_POST)) {
944 $item['gravity'] = 6;
946 $item['gravity'] = 6; // extensible catchall
949 $item['type'] = defaults($item, 'type', 'remote');
951 $uid = intval($item['uid']);
953 // check for create date and expire time
954 $expire_interval = Config::get('system', 'dbclean-expire-days', 0);
956 $user = dba::selectFirst('user', ['expire'], ['uid' => $uid]);
957 if (DBM::is_result($user) && ($user['expire'] > 0) && (($user['expire'] < $expire_interval) || ($expire_interval == 0))) {
958 $expire_interval = $user['expire'];
961 if (($expire_interval > 0) && !empty($item['created'])) {
962 $expire_date = time() - ($expire_interval * 86400);
963 $created_date = strtotime($item['created']);
964 if ($created_date < $expire_date) {
965 logger('item-store: item created ('.date('c', $created_date).') before expiration time ('.date('c', $expire_date).'). ignored. ' . print_r($item,true), LOGGER_DEBUG);
971 * Do we already have this item?
972 * We have to check several networks since Friendica posts could be repeated
973 * via OStatus (maybe Diasporsa as well)
975 if (in_array($item['network'], [NETWORK_DIASPORA, NETWORK_DFRN, NETWORK_OSTATUS, ""])) {
976 $condition = ["`uri` = ? AND `uid` = ? AND `network` IN (?, ?, ?)",
977 trim($item['uri']), $item['uid'],
978 NETWORK_DIASPORA, NETWORK_DFRN, NETWORK_OSTATUS];
979 $existing = dba::selectFirst('item', ['id', 'network'], $condition);
980 if (DBM::is_result($existing)) {
981 // We only log the entries with a different user id than 0. Otherwise we would have too many false positives
983 logger("Item with uri ".$item['uri']." already existed for user ".$uid." with id ".$existing["id"]." target network ".$existing["network"]." - new network: ".$item['network']);
986 return $existing["id"];
990 self::addLanguageInPostopts($item);
992 $item['wall'] = intval(defaults($item, 'wall', 0));
993 $item['extid'] = trim(defaults($item, 'extid', ''));
994 $item['author-name'] = trim(defaults($item, 'author-name', ''));
995 $item['author-link'] = trim(defaults($item, 'author-link', ''));
996 $item['author-avatar'] = trim(defaults($item, 'author-avatar', ''));
997 $item['owner-name'] = trim(defaults($item, 'owner-name', ''));
998 $item['owner-link'] = trim(defaults($item, 'owner-link', ''));
999 $item['owner-avatar'] = trim(defaults($item, 'owner-avatar', ''));
1000 $item['received'] = ((x($item, 'received') !== false) ? DateTimeFormat::utc($item['received']) : DateTimeFormat::utcNow());
1001 $item['created'] = ((x($item, 'created') !== false) ? DateTimeFormat::utc($item['created']) : $item['received']);
1002 $item['edited'] = ((x($item, 'edited') !== false) ? DateTimeFormat::utc($item['edited']) : $item['created']);
1003 $item['changed'] = ((x($item, 'changed') !== false) ? DateTimeFormat::utc($item['changed']) : $item['created']);
1004 $item['commented'] = ((x($item, 'commented') !== false) ? DateTimeFormat::utc($item['commented']) : $item['created']);
1005 $item['title'] = trim(defaults($item, 'title', ''));
1006 $item['location'] = trim(defaults($item, 'location', ''));
1007 $item['coord'] = trim(defaults($item, 'coord', ''));
1008 $item['visible'] = ((x($item, 'visible') !== false) ? intval($item['visible']) : 1);
1009 $item['deleted'] = 0;
1010 $item['parent-uri'] = trim(defaults($item, 'parent-uri', $item['uri']));
1011 $item['verb'] = trim(defaults($item, 'verb', ''));
1012 $item['object-type'] = trim(defaults($item, 'object-type', ''));
1013 $item['object'] = trim(defaults($item, 'object', ''));
1014 $item['target-type'] = trim(defaults($item, 'target-type', ''));
1015 $item['target'] = trim(defaults($item, 'target', ''));
1016 $item['plink'] = trim(defaults($item, 'plink', ''));
1017 $item['allow_cid'] = trim(defaults($item, 'allow_cid', ''));
1018 $item['allow_gid'] = trim(defaults($item, 'allow_gid', ''));
1019 $item['deny_cid'] = trim(defaults($item, 'deny_cid', ''));
1020 $item['deny_gid'] = trim(defaults($item, 'deny_gid', ''));
1021 $item['private'] = intval(defaults($item, 'private', 0));
1022 $item['bookmark'] = intval(defaults($item, 'bookmark', 0));
1023 $item['body'] = trim(defaults($item, 'body', ''));
1024 $item['tag'] = trim(defaults($item, 'tag', ''));
1025 $item['attach'] = trim(defaults($item, 'attach', ''));
1026 $item['app'] = trim(defaults($item, 'app', ''));
1027 $item['origin'] = intval(defaults($item, 'origin', 0));
1028 $item['postopts'] = trim(defaults($item, 'postopts', ''));
1029 $item['resource-id'] = trim(defaults($item, 'resource-id', ''));
1030 $item['event-id'] = intval(defaults($item, 'event-id', 0));
1031 $item['inform'] = trim(defaults($item, 'inform', ''));
1032 $item['file'] = trim(defaults($item, 'file', ''));
1034 // When there is no content then we don't post it
1035 if ($item['body'].$item['title'] == '') {
1039 // Items cannot be stored before they happen ...
1040 if ($item['created'] > DateTimeFormat::utcNow()) {
1041 $item['created'] = DateTimeFormat::utcNow();
1044 // We haven't invented time travel by now.
1045 if ($item['edited'] > DateTimeFormat::utcNow()) {
1046 $item['edited'] = DateTimeFormat::utcNow();
1049 if (($item['author-link'] == "") && ($item['owner-link'] == "")) {
1050 logger("Both author-link and owner-link are empty. Called by: " . System::callstack(), LOGGER_DEBUG);
1053 $item['plink'] = defaults($item, 'plink', System::baseUrl() . '/display/' . urlencode($item['guid']));
1055 // The contact-id should be set before "self::insert" was called - but there seems to be issues sometimes
1056 $item["contact-id"] = self::contactId($item);
1058 $default = ['url' => $item['author-link'], 'name' => $item['author-name'],
1059 'photo' => $item['author-avatar'], 'network' => $item['network']];
1061 $item['author-id'] = defaults($item, 'author-id', Contact::getIdForURL($item["author-link"], 0, false, $default));
1063 if (Contact::isBlocked($item["author-id"])) {
1064 logger('Contact '.$item["author-id"].' is blocked, item '.$item["uri"].' will not be stored');
1068 $default = ['url' => $item['owner-link'], 'name' => $item['owner-name'],
1069 'photo' => $item['owner-avatar'], 'network' => $item['network']];
1071 $item['owner-id'] = defaults($item, 'owner-id', Contact::getIdForURL($item["owner-link"], 0, false, $default));
1073 if (Contact::isBlocked($item["owner-id"])) {
1074 logger('Contact '.$item["owner-id"].' is blocked, item '.$item["uri"].' will not be stored');
1078 //unset($item['author-link']);
1079 unset($item['author-name']);
1080 unset($item['author-avatar']);
1082 //unset($item['owner-link']);
1083 unset($item['owner-name']);
1084 unset($item['owner-avatar']);
1086 if ($item['network'] == NETWORK_PHANTOM) {
1087 logger('Missing network. Called by: '.System::callstack(), LOGGER_DEBUG);
1089 $contact = Contact::getDetailsByURL($item['author-link'], $item['uid']);
1090 if (!empty($contact['network'])) {
1091 $item['network'] = $contact["network"];
1093 $item['network'] = NETWORK_DFRN;
1095 logger("Set network to " . $item["network"] . " for " . $item["uri"], LOGGER_DEBUG);
1098 // Checking if there is already an item with the same guid
1099 logger('Checking for an item for user '.$item['uid'].' on network '.$item['network'].' with the guid '.$item['guid'], LOGGER_DEBUG);
1100 $condition = ['guid' => $item['guid'], 'network' => $item['network'], 'uid' => $item['uid']];
1101 if (dba::exists('item', $condition)) {
1102 logger('found item with guid '.$item['guid'].' for user '.$item['uid'].' on network '.$item['network'], LOGGER_DEBUG);
1106 // Check for hashtags in the body and repair or add hashtag links
1107 self::setHashtags($item);
1109 $item['thr-parent'] = $item['parent-uri'];
1117 if ($item['parent-uri'] === $item['uri']) {
1119 $parent_deleted = 0;
1120 $allow_cid = $item['allow_cid'];
1121 $allow_gid = $item['allow_gid'];
1122 $deny_cid = $item['deny_cid'];
1123 $deny_gid = $item['deny_gid'];
1124 $notify_type = 'wall-new';
1126 // find the parent and snarf the item id and ACLs
1127 // and anything else we need to inherit
1129 $fields = ['uri', 'parent-uri', 'id', 'deleted',
1130 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
1131 'wall', 'private', 'forum_mode', 'origin'];
1132 $condition = ['uri' => $item['parent-uri'], 'uid' => $item['uid']];
1133 $params = ['order' => ['id' => false]];
1134 $parent = dba::selectFirst('item', $fields, $condition, $params);
1136 if (DBM::is_result($parent)) {
1137 // is the new message multi-level threaded?
1138 // even though we don't support it now, preserve the info
1139 // and re-attach to the conversation parent.
1141 if ($parent['uri'] != $parent['parent-uri']) {
1142 $item['parent-uri'] = $parent['parent-uri'];
1144 $condition = ['uri' => $item['parent-uri'],
1145 'parent-uri' => $item['parent-uri'],
1146 'uid' => $item['uid']];
1147 $params = ['order' => ['id' => false]];
1148 $toplevel_parent = dba::selectFirst('item', $fields, $condition, $params);
1150 if (DBM::is_result($toplevel_parent)) {
1151 $parent = $toplevel_parent;
1155 $parent_id = $parent['id'];
1156 $parent_deleted = $parent['deleted'];
1157 $allow_cid = $parent['allow_cid'];
1158 $allow_gid = $parent['allow_gid'];
1159 $deny_cid = $parent['deny_cid'];
1160 $deny_gid = $parent['deny_gid'];
1161 $item['wall'] = $parent['wall'];
1162 $notify_type = 'comment-new';
1165 * If the parent is private, force privacy for the entire conversation
1166 * This differs from the above settings as it subtly allows comments from
1167 * email correspondents to be private even if the overall thread is not.
1169 if ($parent['private']) {
1170 $item['private'] = $parent['private'];
1174 * Edge case. We host a public forum that was originally posted to privately.
1175 * The original author commented, but as this is a comment, the permissions
1176 * weren't fixed up so it will still show the comment as private unless we fix it here.
1178 if ((intval($parent['forum_mode']) == 1) && $parent['private']) {
1179 $item['private'] = 0;
1182 // If its a post from myself then tag the thread as "mention"
1183 logger("Checking if parent ".$parent_id." has to be tagged as mention for user ".$item['uid'], LOGGER_DEBUG);
1184 $user = dba::selectFirst('user', ['nickname'], ['uid' => $item['uid']]);
1185 if (DBM::is_result($user)) {
1186 $self = normalise_link(System::baseUrl() . '/profile/' . $user['nickname']);
1187 $self_id = Contact::getIdForURL($self, 0, true);
1188 logger("'myself' is ".$self_id." for parent ".$parent_id." checking against ".$item['author-id']." and ".$item['owner-id'], LOGGER_DEBUG);
1189 if (($item['author-id'] == $self_id) || ($item['owner-id'] == $self_id)) {
1190 dba::update('thread', ['mention' => true], ['iid' => $parent_id]);
1191 logger("tagged thread ".$parent_id." as mention for user ".$self, LOGGER_DEBUG);
1196 * Allow one to see reply tweets from status.net even when
1197 * we don't have or can't see the original post.
1199 if ($force_parent) {
1200 logger('$force_parent=true, reply converted to top-level post.');
1202 $item['parent-uri'] = $item['uri'];
1203 $item['gravity'] = 0;
1205 logger('item parent '.$item['parent-uri'].' for '.$item['uid'].' was not found - ignoring item');
1209 $parent_deleted = 0;
1213 $condition = ["`uri` = ? AND `network` IN (?, ?) AND `uid` = ?",
1214 $item['uri'], $item['network'], NETWORK_DFRN, $item['uid']];
1215 if (dba::exists('item', $condition)) {
1216 logger('duplicated item with the same uri found. '.print_r($item,true));
1220 // On Friendica and Diaspora the GUID is unique
1221 if (in_array($item['network'], [NETWORK_DFRN, NETWORK_DIASPORA])) {
1222 $condition = ['guid' => $item['guid'], 'uid' => $item['uid']];
1223 if (dba::exists('item', $condition)) {
1224 logger('duplicated item with the same guid found. '.print_r($item,true));
1228 // Check for an existing post with the same content. There seems to be a problem with OStatus.
1229 $condition = ["`body` = ? AND `network` = ? AND `created` = ? AND `contact-id` = ? AND `uid` = ?",
1230 $item['body'], $item['network'], $item['created'], $item['contact-id'], $item['uid']];
1231 if (dba::exists('item', $condition)) {
1232 logger('duplicated item with the same body found. '.print_r($item,true));
1237 // Is this item available in the global items (with uid=0)?
1238 if ($item["uid"] == 0) {
1239 $item["global"] = true;
1241 // Set the global flag on all items if this was a global item entry
1242 dba::update('item', ['global' => true], ['uri' => $item["uri"]]);
1244 $item["global"] = dba::exists('item', ['uid' => 0, 'uri' => $item["uri"]]);
1248 if (strlen($allow_cid) || strlen($allow_gid) || strlen($deny_cid) || strlen($deny_gid)) {
1251 $private = $item['private'];
1254 $item["allow_cid"] = $allow_cid;
1255 $item["allow_gid"] = $allow_gid;
1256 $item["deny_cid"] = $deny_cid;
1257 $item["deny_gid"] = $deny_gid;
1258 $item["private"] = $private;
1259 $item["deleted"] = $parent_deleted;
1261 // Fill the cache field
1262 put_item_in_cache($item);
1265 Addon::callHooks('post_local', $item);
1267 Addon::callHooks('post_remote', $item);
1270 // This array field is used to trigger some automatic reactions
1271 // It is mainly used in the "post_local" hook.
1272 unset($item['api_source']);
1274 if (x($item, 'cancel')) {
1275 logger('post cancelled by addon.');
1280 * Check for already added items.
1281 * There is a timing issue here that sometimes creates double postings.
1282 * An unique index would help - but the limitations of MySQL (maximum size of index values) prevent this.
1284 if ($item["uid"] == 0) {
1285 if (dba::exists('item', ['uri' => trim($item['uri']), 'uid' => 0])) {
1286 logger('Global item already stored. URI: '.$item['uri'].' on network '.$item['network'], LOGGER_DEBUG);
1291 logger('' . print_r($item,true), LOGGER_DATA);
1294 self::insertContent($item);
1295 $ret = dba::insert('item', $item);
1297 // When the item was successfully stored we fetch the ID of the item.
1298 if (DBM::is_result($ret)) {
1299 $current_post = dba::lastInsertId();
1301 // This can happen - for example - if there are locking timeouts.
1304 // Store the data into a spool file so that we can try again later.
1306 // At first we restore the Diaspora signature that we removed above.
1307 if (isset($encoded_signature)) {
1308 $item['dsprsig'] = $encoded_signature;
1311 // Now we store the data in the spool directory
1312 // We use "microtime" to keep the arrival order and "mt_rand" to avoid duplicates
1313 $file = 'item-'.round(microtime(true) * 10000).'-'.mt_rand().'.msg';
1315 $spoolpath = get_spoolpath();
1316 if ($spoolpath != "") {
1317 $spool = $spoolpath.'/'.$file;
1318 file_put_contents($spool, json_encode($item));
1319 logger("Item wasn't stored - Item was spooled into file ".$file, LOGGER_DEBUG);
1324 if ($current_post == 0) {
1325 // This is one of these error messages that never should occur.
1326 logger("couldn't find created item - we better quit now.");
1331 // How much entries have we created?
1332 // We wouldn't need this query when we could use an unique index - but MySQL has length problems with them.
1333 $entries = dba::count('item', ['uri' => $item['uri'], 'uid' => $item['uid'], 'network' => $item['network']]);
1336 // There are duplicates. We delete our just created entry.
1337 logger('Duplicated post occurred. uri = ' . $item['uri'] . ' uid = ' . $item['uid']);
1339 // Yes, we could do a rollback here - but we are having many users with MyISAM.
1340 dba::delete('item', ['id' => $current_post]);
1343 } elseif ($entries == 0) {
1344 // This really should never happen since we quit earlier if there were problems.
1345 logger("Something is terribly wrong. We haven't found our created entry.");
1350 logger('created item '.$current_post);
1351 self::updateContact($item);
1353 if (!$parent_id || ($item['parent-uri'] === $item['uri'])) {
1354 $parent_id = $current_post;
1358 dba::update('item', ['parent' => $parent_id], ['id' => $current_post]);
1360 $item['id'] = $current_post;
1361 $item['parent'] = $parent_id;
1363 // update the commented timestamp on the parent
1364 // Only update "commented" if it is really a comment
1365 if (($item['verb'] == ACTIVITY_POST) || !Config::get("system", "like_no_comment")) {
1366 dba::update('item', ['commented' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
1368 dba::update('item', ['changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
1373 * Friendica servers lower than 3.4.3-2 had double encoded the signature ...
1374 * We can check for this condition when we decode and encode the stuff again.
1376 if (base64_encode(base64_decode(base64_decode($dsprsig->signature))) == base64_decode($dsprsig->signature)) {
1377 $dsprsig->signature = base64_decode($dsprsig->signature);
1378 logger("Repaired double encoded signature from handle ".$dsprsig->signer, LOGGER_DEBUG);
1381 dba::insert('sign', ['iid' => $current_post, 'signed_text' => $dsprsig->signed_text,
1382 'signature' => $dsprsig->signature, 'signer' => $dsprsig->signer]);
1385 if (!empty($diaspora_signed_text)) {
1386 // Formerly we stored the signed text, the signature and the author in different fields.
1387 // We now store the raw data so that we are more flexible.
1388 dba::insert('sign', ['iid' => $current_post, 'signed_text' => $diaspora_signed_text]);
1391 $deleted = self::tagDeliver($item['uid'], $current_post);
1394 * current post can be deleted if is for a community page and no mention are
1397 if (!$deleted && !$dontcache) {
1398 $posted_item = dba::selectFirst('item', [], ['id' => $current_post]);
1399 if (DBM::is_result($posted_item)) {
1401 Addon::callHooks('post_local_end', $posted_item);
1403 Addon::callHooks('post_remote_end', $posted_item);
1406 logger('new item not found in DB, id ' . $current_post);
1410 if ($item['parent-uri'] === $item['uri']) {
1411 self::addThread($current_post);
1413 self::updateThread($parent_id);
1419 * Due to deadlock issues with the "term" table we are doing these steps after the commit.
1420 * This is not perfect - but a workable solution until we found the reason for the problem.
1422 Term::insertFromTagFieldByItemId($current_post);
1423 Term::insertFromFileFieldByItemId($current_post);
1425 if ($item['parent-uri'] === $item['uri']) {
1426 self::addShadow($current_post);
1428 self::addShadowPost($current_post);
1431 check_user_notification($current_post);
1434 Worker::add(['priority' => $priority, 'dont_fork' => true], "Notifier", $notify_type, $current_post);
1435 } elseif (!empty($parent) && $parent['origin']) {
1436 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "Notifier", "comment-import", $current_post);
1439 return $current_post;
1443 * @brief Insert a new item content entry
1445 * @param array $item The item fields that are to be inserted
1447 private static function insertContent(&$item)
1449 $fields = ['uri' => $item['uri'], 'plink' => $item['plink'],
1450 'uri-plink-hash' => hash('sha1', $item['plink']).hash('sha1', $item['uri'])];
1452 unset($item['plink']);
1454 foreach (self::CONTENT_FIELDLIST as $field) {
1455 if (isset($item[$field])) {
1456 $fields[$field] = $item[$field];
1457 unset($item[$field]);
1461 // Do we already have this content?
1462 $item_content = dba::selectFirst('item-content', ['id'], ['uri' => $item['uri']]);
1463 if (DBM::is_result($item_content)) {
1464 $item['icid'] = $item_content['id'];
1465 logger('Assigned content for URI '.$item['uri'].' ('.$item['icid'].')');
1469 dba::insert('item-content', $fields);
1471 $item['icid'] = dba::lastInsertId();
1473 logger('Insert content for URI '.$item['uri'].' ('.$item['icid'].')');
1478 * @brief Update existing item content entries
1480 * @param array $item The item fields that are to be changed
1481 * @param array $condition The condition for finding the item content entries
1483 private static function updateContent($item, $condition)
1485 // We have to select only the fields from the "item-content" table
1487 foreach (self::CONTENT_FIELDLIST as $field) {
1488 if (isset($item[$field])) {
1489 $fields[$field] = $item[$field];
1493 if (empty($fields)) {
1497 logger('Update content for id '.$condition['id']);
1499 dba::update('item-content', $fields, $condition, true);
1503 * @brief Distributes public items to the receivers
1505 * @param integer $itemid Item ID that should be added
1506 * @param string $signed_text Original text (for Diaspora signatures), JSON encoded.
1508 public static function distribute($itemid, $signed_text = '')
1510 $condition = ["`id` IN (SELECT `parent` FROM `item` WHERE `id` = ?)", $itemid];
1511 $parent = dba::selectFirst('item', ['owner-id'], $condition);
1512 if (!DBM::is_result($parent)) {
1516 // Only distribute public items from native networks
1517 $condition = ['id' => $itemid, 'uid' => 0,
1518 'network' => [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""],
1519 'visible' => true, 'deleted' => false, 'moderated' => false, 'private' => false];
1520 $item = dba::selectFirst('item', [], ['id' => $itemid]);
1521 if (!DBM::is_result($item)) {
1526 unset($item['parent']);
1527 unset($item['mention']);
1528 unset($item['wall']);
1529 unset($item['origin']);
1530 unset($item['starred']);
1531 unset($item['rendered-hash']);
1532 unset($item['rendered-html']);
1536 $condition = ["`nurl` IN (SELECT `nurl` FROM `contact` WHERE `id` = ?) AND `uid` != 0 AND NOT `blocked` AND `rel` IN (?, ?)",
1537 $parent['owner-id'], CONTACT_IS_SHARING, CONTACT_IS_FRIEND];
1538 $contacts = dba::select('contact', ['uid'], $condition);
1539 while ($contact = dba::fetch($contacts)) {
1540 $users[$contact['uid']] = $contact['uid'];
1545 if ($item['uri'] != $item['parent-uri']) {
1546 $parents = dba::select('item', ['uid', 'origin'], ["`uri` = ? AND `uid` != 0", $item['parent-uri']]);
1547 while ($parent = dba::fetch($parents)) {
1548 $users[$parent['uid']] = $parent['uid'];
1549 if ($parent['origin'] && !$item['origin']) {
1550 $origin_uid = $parent['uid'];
1555 foreach ($users as $uid) {
1556 if ($origin_uid == $uid) {
1557 $item['diaspora_signed_text'] = $signed_text;
1559 self::storeForUser($itemid, $item, $uid);
1564 * @brief Store public items for the receivers
1566 * @param integer $itemid Item ID that should be added
1567 * @param array $item The item entry that will be stored
1568 * @param integer $uid The user that will receive the item entry
1570 private static function storeForUser($itemid, $item, $uid)
1572 $item['uid'] = $uid;
1573 $item['origin'] = 0;
1575 if ($item['uri'] == $item['parent-uri']) {
1576 $item['contact-id'] = Contact::getIdForURL($item['owner-link'], $uid);
1578 $item['contact-id'] = Contact::getIdForURL($item['author-link'], $uid);
1581 if (empty($item['contact-id'])) {
1582 $self = dba::selectFirst('contact', ['id'], ['self' => true, 'uid' => $uid]);
1583 if (!DBM::is_result($self)) {
1586 $item['contact-id'] = $self['id'];
1589 if (in_array($item['type'], ["net-comment", "wall-comment"])) {
1590 $item['type'] = 'remote-comment';
1591 } elseif ($item['type'] == 'wall') {
1592 $item['type'] = 'remote';
1595 /// @todo Handling of "event-id"
1598 if ($item['uri'] == $item['parent-uri']) {
1599 $contact = dba::selectFirst('contact', [], ['id' => $item['contact-id'], 'self' => false]);
1600 if (DBM::is_result($contact)) {
1601 $notify = self::isRemoteSelf($contact, $item);
1605 $distributed = self::insert($item, false, $notify, true);
1607 if (!$distributed) {
1608 logger("Distributed public item " . $itemid . " for user " . $uid . " wasn't stored", LOGGER_DEBUG);
1610 logger("Distributed public item " . $itemid . " for user " . $uid . " with id " . $distributed, LOGGER_DEBUG);
1615 * @brief Add a shadow entry for a given item id that is a thread starter
1617 * We store every public item entry additionally with the user id "0".
1618 * This is used for the community page and for the search.
1619 * It is planned that in the future we will store public item entries only once.
1621 * @param integer $itemid Item ID that should be added
1623 public static function addShadow($itemid)
1625 $fields = ['uid', 'private', 'moderated', 'visible', 'deleted', 'network'];
1626 $condition = ['id' => $itemid, 'parent' => [0, $itemid]];
1627 $item = dba::selectFirst('item', $fields, $condition);
1629 if (!DBM::is_result($item)) {
1633 // is it already a copy?
1634 if (($itemid == 0) || ($item['uid'] == 0)) {
1638 // Is it a visible public post?
1639 if (!$item["visible"] || $item["deleted"] || $item["moderated"] || $item["private"]) {
1643 // is it an entry from a connector? Only add an entry for natively connected networks
1644 if (!in_array($item["network"], [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""])) {
1648 $item = dba::selectFirst('item', [], ['id' => $itemid]);
1650 if (DBM::is_result($item) && ($item["allow_cid"] == '') && ($item["allow_gid"] == '') &&
1651 ($item["deny_cid"] == '') && ($item["deny_gid"] == '')) {
1653 if (!dba::exists('item', ['uri' => $item['uri'], 'uid' => 0])) {
1654 // Preparing public shadow (removing user specific data)
1657 unset($item['parent']);
1658 unset($item['wall']);
1659 unset($item['mention']);
1660 unset($item['origin']);
1661 unset($item['starred']);
1662 unset($item['rendered-hash']);
1663 unset($item['rendered-html']);
1664 if ($item['uri'] == $item['parent-uri']) {
1665 $item['contact-id'] = Contact::getIdForURL($item['owner-link']);
1667 $item['contact-id'] = Contact::getIdForURL($item['author-link']);
1670 if (in_array($item['type'], ["net-comment", "wall-comment"])) {
1671 $item['type'] = 'remote-comment';
1672 } elseif ($item['type'] == 'wall') {
1673 $item['type'] = 'remote';
1676 $public_shadow = self::insert($item, false, false, true);
1678 logger("Stored public shadow for thread ".$itemid." under id ".$public_shadow, LOGGER_DEBUG);
1684 * @brief Add a shadow entry for a given item id that is a comment
1686 * This function does the same like the function above - but for comments
1688 * @param integer $itemid Item ID that should be added
1690 public static function addShadowPost($itemid)
1692 $item = dba::selectFirst('item', [], ['id' => $itemid]);
1693 if (!DBM::is_result($item)) {
1697 // Is it a toplevel post?
1698 if ($item['id'] == $item['parent']) {
1699 self::addShadow($itemid);
1703 // Is this a shadow entry?
1704 if ($item['uid'] == 0) {
1708 // Is there a shadow parent?
1709 if (!dba::exists('item', ['uri' => $item['parent-uri'], 'uid' => 0])) {
1713 // Is there already a shadow entry?
1714 if (dba::exists('item', ['uri' => $item['uri'], 'uid' => 0])) {
1718 // Save "origin" and "parent" state
1719 $origin = $item['origin'];
1720 $parent = $item['parent'];
1722 // Preparing public shadow (removing user specific data)
1725 unset($item['parent']);
1726 unset($item['wall']);
1727 unset($item['mention']);
1728 unset($item['origin']);
1729 unset($item['starred']);
1730 unset($item['rendered-hash']);
1731 unset($item['rendered-html']);
1732 $item['contact-id'] = Contact::getIdForURL($item['author-link']);
1734 if (in_array($item['type'], ["net-comment", "wall-comment"])) {
1735 $item['type'] = 'remote-comment';
1736 } elseif ($item['type'] == 'wall') {
1737 $item['type'] = 'remote';
1740 $public_shadow = self::insert($item, false, false, true);
1742 logger("Stored public shadow for comment ".$item['uri']." under id ".$public_shadow, LOGGER_DEBUG);
1744 // If this was a comment to a Diaspora post we don't get our comment back.
1745 // This means that we have to distribute the comment by ourselves.
1746 if ($origin && dba::exists('item', ['id' => $parent, 'network' => NETWORK_DIASPORA])) {
1747 self::distribute($public_shadow);
1752 * Adds a "lang" specification in a "postopts" element of given $arr,
1753 * if possible and not already present.
1754 * Expects "body" element to exist in $arr.
1756 private static function addLanguageInPostopts(&$item)
1760 if (!empty($item['postopts'])) {
1761 if (strstr($item['postopts'], 'lang=')) {
1765 $postopts = $item['postopts'];
1768 $naked_body = Text\BBCode::toPlaintext($item['body'], false);
1770 $languages = (new Text_LanguageDetect())->detect($naked_body, 3);
1772 if (sizeof($languages) > 0) {
1773 if ($postopts != '') {
1774 $postopts .= '&'; // arbitrary separator, to be reviewed
1777 $postopts .= 'lang=';
1780 foreach ($languages as $language => $score) {
1781 $postopts .= $sep . $language . ";" . $score;
1784 $item['postopts'] = $postopts;
1789 * @brief Creates an unique guid out of a given uri
1791 * @param string $uri uri of an item entry
1792 * @param string $host hostname for the GUID prefix
1793 * @return string unique guid
1795 public static function guidFromUri($uri, $host)
1797 // Our regular guid routine is using this kind of prefix as well
1798 // We have to avoid that different routines could accidentally create the same value
1799 $parsed = parse_url($uri);
1801 // We use a hash of the hostname as prefix for the guid
1802 $guid_prefix = hash("crc32", $host);
1804 // Remove the scheme to make sure that "https" and "http" doesn't make a difference
1805 unset($parsed["scheme"]);
1807 // Glue it together to be able to make a hash from it
1808 $host_id = implode("/", $parsed);
1810 // We could use any hash algorithm since it isn't a security issue
1811 $host_hash = hash("ripemd128", $host_id);
1813 return $guid_prefix.$host_hash;
1817 * generate an unique URI
1819 * @param integer $uid User id
1820 * @param string $guid An existing GUID (Otherwise it will be generated)
1824 public static function newURI($uid, $guid = "")
1827 $guid = get_guid(32);
1830 $hostname = self::getApp()->get_hostname();
1832 $user = dba::selectFirst('user', ['nickname'], ['uid' => $uid]);
1834 $uri = "urn:X-dfrn:" . $hostname . ':' . $user['nickname'] . ':' . $guid;
1840 * @brief Set "success_update" and "last-item" to the date of the last time we heard from this contact
1842 * This can be used to filter for inactive contacts.
1843 * Only do this for public postings to avoid privacy problems, since poco data is public.
1844 * Don't set this value if it isn't from the owner (could be an author that we don't know)
1846 * @param array $arr Contains the just posted item record
1848 private static function updateContact($arr)
1850 // Unarchive the author
1851 $contact = dba::selectFirst('contact', [], ['id' => $arr["author-id"]]);
1852 if (DBM::is_result($contact)) {
1853 Contact::unmarkForArchival($contact);
1856 // Unarchive the contact if it's not our own contact
1857 $contact = dba::selectFirst('contact', [], ['id' => $arr["contact-id"], 'self' => false]);
1858 if (DBM::is_result($contact)) {
1859 Contact::unmarkForArchival($contact);
1862 $update = (!$arr['private'] && (($arr["author-link"] === $arr["owner-link"]) || ($arr["parent-uri"] === $arr["uri"])));
1864 // Is it a forum? Then we don't care about the rules from above
1865 if (!$update && ($arr["network"] == NETWORK_DFRN) && ($arr["parent-uri"] === $arr["uri"])) {
1866 if (dba::exists('contact', ['id' => $arr['contact-id'], 'forum' => true])) {
1872 dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
1873 ['id' => $arr['contact-id']]);
1875 // Now do the same for the system wide contacts with uid=0
1876 if (!$arr['private']) {
1877 dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
1878 ['id' => $arr['owner-id']]);
1880 if ($arr['owner-id'] != $arr['author-id']) {
1881 dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
1882 ['id' => $arr['author-id']]);
1887 public static function setHashtags(&$item)
1890 $tags = get_tags($item["body"]);
1893 if (!count($tags)) {
1897 // This sorting is important when there are hashtags that are part of other hashtags
1898 // Otherwise there could be problems with hashtags like #test and #test2
1901 $URLSearchString = "^\[\]";
1903 // All hashtags should point to the home server if "local_tags" is activated
1904 if (Config::get('system', 'local_tags')) {
1905 $item["body"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1906 "#[url=".System::baseUrl()."/search?tag=$2]$2[/url]", $item["body"]);
1908 $item["tag"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1909 "#[url=".System::baseUrl()."/search?tag=$2]$2[/url]", $item["tag"]);
1912 // mask hashtags inside of url, bookmarks and attachments to avoid urls in urls
1913 $item["body"] = preg_replace_callback("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1915 return ("[url=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/url]");
1918 $item["body"] = preg_replace_callback("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism",
1920 return ("[bookmark=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/bookmark]");
1923 $item["body"] = preg_replace_callback("/\[attachment (.*)\](.*?)\[\/attachment\]/ism",
1925 return ("[attachment " . str_replace("#", "#", $match[1]) . "]" . $match[2] . "[/attachment]");
1928 // Repair recursive urls
1929 $item["body"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1930 "#$2", $item["body"]);
1932 foreach ($tags as $tag) {
1933 if ((strpos($tag, '#') !== 0) || strpos($tag, '[url=')) {
1937 $basetag = str_replace('_',' ',substr($tag,1));
1939 $newtag = '#[url=' . System::baseUrl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
1941 $item["body"] = str_replace($tag, $newtag, $item["body"]);
1943 if (!stristr($item["tag"], "/search?tag=" . $basetag . "]" . $basetag . "[/url]")) {
1944 if (strlen($item["tag"])) {
1945 $item["tag"] = ','.$item["tag"];
1947 $item["tag"] = $newtag.$item["tag"];
1951 // Convert back the masked hashtags
1952 $item["body"] = str_replace("#", "#", $item["body"]);
1955 public static function getGuidById($id)
1957 $item = dba::selectFirst('item', ['guid'], ['id' => $id]);
1958 if (DBM::is_result($item)) {
1959 return $item['guid'];
1965 public static function getIdAndNickByGuid($guid, $uid = 0)
1971 $uid == local_user();
1974 // Does the given user have this item?
1976 $item = dba::fetch_first("SELECT `item`.`id`, `user`.`nickname` FROM `item`
1977 INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
1978 WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
1979 AND `item`.`guid` = ? AND `item`.`uid` = ?", $guid, $uid);
1980 if (DBM::is_result($item)) {
1982 $nick = $item["nickname"];
1986 // Or is it anywhere on the server?
1988 $item = dba::fetch_first("SELECT `item`.`id`, `user`.`nickname` FROM `item`
1989 INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
1990 WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
1991 AND `item`.`allow_cid` = '' AND `item`.`allow_gid` = ''
1992 AND `item`.`deny_cid` = '' AND `item`.`deny_gid` = ''
1993 AND NOT `item`.`private` AND `item`.`wall`
1994 AND `item`.`guid` = ?", $guid);
1995 if (DBM::is_result($item)) {
1997 $nick = $item["nickname"];
2000 return ["nick" => $nick, "id" => $id];
2004 * look for mention tags and setup a second delivery chain for forum/community posts if appropriate
2006 * @param int $item_id
2007 * @return bool true if item was deleted, else false
2009 private static function tagDeliver($uid, $item_id)
2013 $user = dba::selectFirst('user', [], ['uid' => $uid]);
2014 if (!DBM::is_result($user)) {
2018 $community_page = (($user['page-flags'] == PAGE_COMMUNITY) ? true : false);
2019 $prvgroup = (($user['page-flags'] == PAGE_PRVGROUP) ? true : false);
2021 $item = dba::selectFirst('item', [], ['id' => $item_id]);
2022 if (!DBM::is_result($item)) {
2026 $link = normalise_link(System::baseUrl() . '/profile/' . $user['nickname']);
2029 * Diaspora uses their own hardwired link URL in @-tags
2030 * instead of the one we supply with webfinger
2032 $dlink = normalise_link(System::baseUrl() . '/u/' . $user['nickname']);
2034 $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism', $item['body'], $matches, PREG_SET_ORDER);
2036 foreach ($matches as $mtch) {
2037 if (link_compare($link, $mtch[1]) || link_compare($dlink, $mtch[1])) {
2039 logger('mention found: ' . $mtch[2]);
2045 if (($community_page || $prvgroup) &&
2046 !$item['wall'] && !$item['origin'] && ($item['id'] == $item['parent'])) {
2047 // mmh.. no mention.. community page or private group... no wall.. no origin.. top-post (not a comment)
2049 logger("no-mention top-level post to community or private group. delete.");
2050 dba::delete('item', ['id' => $item_id]);
2056 $arr = ['item' => $item, 'user' => $user];
2058 Addon::callHooks('tagged', $arr);
2060 if (!$community_page && !$prvgroup) {
2065 * tgroup delivery - setup a second delivery chain
2066 * prevent delivery looping - only proceed
2067 * if the message originated elsewhere and is a top-level post
2069 if ($item['wall'] || $item['origin'] || ($item['id'] != $item['parent'])) {
2073 // now change this copy of the post to a forum head message and deliver to all the tgroup members
2074 $self = dba::selectFirst('contact', ['id', 'name', 'url', 'thumb'], ['uid' => $uid, 'self' => true]);
2075 if (!DBM::is_result($self)) {
2079 $owner_id = Contact::getIdForURL($self['url']);
2081 // also reset all the privacy bits to the forum default permissions
2083 $private = ($user['allow_cid'] || $user['allow_gid'] || $user['deny_cid'] || $user['deny_gid']) ? 1 : 0;
2085 $forum_mode = ($prvgroup ? 2 : 1);
2087 $fields = ['wall' => true, 'origin' => true, 'forum_mode' => $forum_mode, 'contact-id' => $self['id'],
2088 'owner-id' => $owner_id, 'owner-link' => $self['url'], 'private' => $private, 'allow_cid' => $user['allow_cid'],
2089 'allow_gid' => $user['allow_gid'], 'deny_cid' => $user['deny_cid'], 'deny_gid' => $user['deny_gid']];
2090 dba::update('item', $fields, ['id' => $item_id]);
2092 self::updateThread($item_id);
2094 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], 'Notifier', 'tgroup', $item_id);
2097 public static function isRemoteSelf($contact, &$datarray)
2101 if (!$contact['remote_self']) {
2105 // Prevent the forwarding of posts that are forwarded
2106 if ($datarray["extid"] == NETWORK_DFRN) {
2107 logger('Already forwarded', LOGGER_DEBUG);
2111 // Prevent to forward already forwarded posts
2112 if ($datarray["app"] == $a->get_hostname()) {
2113 logger('Already forwarded (second test)', LOGGER_DEBUG);
2117 // Only forward posts
2118 if ($datarray["verb"] != ACTIVITY_POST) {
2119 logger('No post', LOGGER_DEBUG);
2123 if (($contact['network'] != NETWORK_FEED) && $datarray['private']) {
2124 logger('Not public', LOGGER_DEBUG);
2128 $datarray2 = $datarray;
2129 logger('remote-self start - Contact '.$contact['url'].' - '.$contact['remote_self'].' Item '.print_r($datarray, true), LOGGER_DEBUG);
2130 if ($contact['remote_self'] == 2) {
2131 $self = dba::selectFirst('contact', ['id', 'name', 'url', 'thumb'],
2132 ['uid' => $contact['uid'], 'self' => true]);
2133 if (DBM::is_result($self)) {
2134 $datarray['contact-id'] = $self["id"];
2136 $datarray['owner-name'] = $self["name"];
2137 $datarray['owner-link'] = $self["url"];
2138 $datarray['owner-avatar'] = $self["thumb"];
2140 $datarray['author-name'] = $datarray['owner-name'];
2141 $datarray['author-link'] = $datarray['owner-link'];
2142 $datarray['author-avatar'] = $datarray['owner-avatar'];
2144 unset($datarray['created']);
2145 unset($datarray['edited']);
2147 unset($datarray['network']);
2148 unset($datarray['owner-id']);
2149 unset($datarray['author-id']);
2152 if ($contact['network'] != NETWORK_FEED) {
2153 $datarray["guid"] = get_guid(32);
2154 unset($datarray["plink"]);
2155 $datarray["uri"] = self::newURI($contact['uid'], $datarray["guid"]);
2156 $datarray["parent-uri"] = $datarray["uri"];
2157 $datarray["thr-parent"] = $datarray["uri"];
2158 $datarray["extid"] = NETWORK_DFRN;
2159 $urlpart = parse_url($datarray2['author-link']);
2160 $datarray["app"] = $urlpart["host"];
2162 $datarray['private'] = 0;
2166 if ($contact['network'] != NETWORK_FEED) {
2167 // Store the original post
2168 $result = self::insert($datarray2, false, false);
2169 logger('remote-self post original item - Contact '.$contact['url'].' return '.$result.' Item '.print_r($datarray2, true), LOGGER_DEBUG);
2171 $datarray["app"] = "Feed";
2175 // Trigger automatic reactions for addons
2176 $datarray['api_source'] = true;
2178 // We have to tell the hooks who we are - this really should be improved
2179 $_SESSION["authenticated"] = true;
2180 $_SESSION["uid"] = $contact['uid'];
2189 * @param array $item
2193 public static function fixPrivatePhotos($s, $uid, $item = null, $cid = 0)
2195 if (Config::get('system', 'disable_embedded')) {
2199 logger('check for photos', LOGGER_DEBUG);
2200 $site = substr(System::baseUrl(), strpos(System::baseUrl(), '://'));
2205 $img_start = strpos($orig_body, '[img');
2206 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
2207 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
2209 while (($img_st_close !== false) && ($img_len !== false)) {
2210 $img_st_close++; // make it point to AFTER the closing bracket
2211 $image = substr($orig_body, $img_start + $img_st_close, $img_len);
2213 logger('found photo ' . $image, LOGGER_DEBUG);
2215 if (stristr($image, $site . '/photo/')) {
2216 // Only embed locally hosted photos
2218 $i = basename($image);
2219 $i = str_replace(['.jpg', '.png', '.gif'], ['', '', ''], $i);
2220 $x = strpos($i, '-');
2223 $res = substr($i, $x + 1);
2224 $i = substr($i, 0, $x);
2225 $fields = ['data', 'type', 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid'];
2226 $photo = dba::selectFirst('photo', $fields, ['resource-id' => $i, 'scale' => $res, 'uid' => $uid]);
2227 if (DBM::is_result($photo)) {
2229 * Check to see if we should replace this photo link with an embedded image
2230 * 1. No need to do so if the photo is public
2231 * 2. If there's a contact-id provided, see if they're in the access list
2232 * for the photo. If so, embed it.
2233 * 3. Otherwise, if we have an item, see if the item permissions match the photo
2234 * permissions, regardless of order but first check to see if they're an exact
2235 * match to save some processing overhead.
2237 if (self::hasPermissions($photo)) {
2239 $recips = self::enumeratePermissions($photo);
2240 if (in_array($cid, $recips)) {
2244 if (self::samePermissions($item, $photo)) {
2250 $data = $photo['data'];
2251 $type = $photo['type'];
2253 // If a custom width and height were specified, apply before embedding
2254 if (preg_match("/\[img\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
2255 logger('scaling photo', LOGGER_DEBUG);
2257 $width = intval($match[1]);
2258 $height = intval($match[2]);
2260 $Image = new Image($data, $type);
2261 if ($Image->isValid()) {
2262 $Image->scaleDown(max($width, $height));
2263 $data = $Image->asString();
2264 $type = $Image->getType();
2268 logger('replacing photo', LOGGER_DEBUG);
2269 $image = 'data:' . $type . ';base64,' . base64_encode($data);
2270 logger('replaced: ' . $image, LOGGER_DATA);
2276 $new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/img]';
2277 $orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/img]'));
2278 if ($orig_body === false) {
2282 $img_start = strpos($orig_body, '[img');
2283 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
2284 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
2287 $new_body = $new_body . $orig_body;
2292 private static function hasPermissions($obj)
2296 x($obj, 'allow_cid')
2298 x($obj, 'allow_gid')
2307 private static function samePermissions($obj1, $obj2)
2309 // first part is easy. Check that these are exactly the same.
2310 if (($obj1['allow_cid'] == $obj2['allow_cid'])
2311 && ($obj1['allow_gid'] == $obj2['allow_gid'])
2312 && ($obj1['deny_cid'] == $obj2['deny_cid'])
2313 && ($obj1['deny_gid'] == $obj2['deny_gid'])) {
2317 // This is harder. Parse all the permissions and compare the resulting set.
2318 $recipients1 = self::enumeratePermissions($obj1);
2319 $recipients2 = self::enumeratePermissions($obj2);
2323 /// @TODO Comparison of arrays, maybe use array_diff_assoc() here?
2324 return ($recipients1 == $recipients2);
2327 // returns an array of contact-ids that are allowed to see this object
2328 private static function enumeratePermissions($obj)
2330 $allow_people = expand_acl($obj['allow_cid']);
2331 $allow_groups = Group::expand(expand_acl($obj['allow_gid']));
2332 $deny_people = expand_acl($obj['deny_cid']);
2333 $deny_groups = Group::expand(expand_acl($obj['deny_gid']));
2334 $recipients = array_unique(array_merge($allow_people, $allow_groups));
2335 $deny = array_unique(array_merge($deny_people, $deny_groups));
2336 $recipients = array_diff($recipients, $deny);
2340 public static function getFeedTags($item)
2344 $cnt = preg_match_all('|\#\[url\=(.*?)\](.*?)\[\/url\]|', $item['tag'], $matches);
2346 for ($x = 0; $x < $cnt; $x ++) {
2347 if ($matches[1][$x]) {
2348 $ret[$matches[2][$x]] = ['#', $matches[1][$x], $matches[2][$x]];
2353 $cnt = preg_match_all('|\@\[url\=(.*?)\](.*?)\[\/url\]|', $item['tag'], $matches);
2355 for ($x = 0; $x < $cnt; $x ++) {
2356 if ($matches[1][$x]) {
2357 $ret[] = ['@', $matches[1][$x], $matches[2][$x]];
2364 public static function expire($uid, $days, $network = "", $force = false)
2366 if (!$uid || ($days < 1)) {
2371 * $expire_network_only = save your own wall posts
2372 * and just expire conversations started by others
2374 $expire_network_only = PConfig::get($uid,'expire', 'network_only');
2375 $sql_extra = (intval($expire_network_only) ? " AND wall = 0 " : "");
2377 if ($network != "") {
2378 $sql_extra .= sprintf(" AND network = '%s' ", dbesc($network));
2381 * There is an index "uid_network_received" but not "uid_network_created"
2382 * This avoids the creation of another index just for one purpose.
2383 * And it doesn't really matter wether to look at "received" or "created"
2385 $range = "AND `received` < UTC_TIMESTAMP() - INTERVAL %d DAY ";
2387 $range = "AND `created` < UTC_TIMESTAMP() - INTERVAL %d DAY ";
2390 $r = q("SELECT `file`, `resource-id`, `starred`, `type`, `id` FROM `item`
2391 WHERE `uid` = %d $range
2399 if (!DBM::is_result($r)) {
2403 $expire_items = PConfig::get($uid, 'expire', 'items', 1);
2405 // Forcing expiring of items - but not notes and marked items
2407 $expire_items = true;
2410 $expire_notes = PConfig::get($uid, 'expire', 'notes', 1);
2411 $expire_starred = PConfig::get($uid, 'expire', 'starred', 1);
2412 $expire_photos = PConfig::get($uid, 'expire', 'photos', 0);
2414 logger('User '.$uid.': expire: # items=' . count($r). "; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
2416 foreach ($r as $item) {
2418 // don't expire filed items
2420 if (strpos($item['file'],'[') !== false) {
2424 // Only expire posts, not photos and photo comments
2426 if ($expire_photos == 0 && strlen($item['resource-id'])) {
2428 } elseif ($expire_starred == 0 && intval($item['starred'])) {
2430 } elseif ($expire_notes == 0 && $item['type'] == 'note') {
2432 } elseif ($expire_items == 0 && $item['type'] != 'note') {
2436 self::deleteById($item['id'], PRIORITY_LOW);
2440 public static function firstPostDate($uid, $wall = false)
2442 $condition = ['uid' => $uid, 'wall' => $wall, 'deleted' => false, 'visible' => true, 'moderated' => false];
2443 $params = ['order' => ['created' => false]];
2444 $thread = dba::selectFirst('thread', ['created'], $condition, $params);
2445 if (DBM::is_result($thread)) {
2446 return substr(DateTimeFormat::local($thread['created']), 0, 10);
2452 * @brief add/remove activity to an item
2454 * Toggle activities as like,dislike,attend of an item
2456 * @param string $item_id
2457 * @param string $verb
2458 * Activity verb. One of
2459 * like, unlike, dislike, undislike, attendyes, unattendyes,
2460 * attendno, unattendno, attendmaybe, unattendmaybe
2461 * @hook 'post_local_end'
2463 * 'post_id' => ID of posted item
2465 public static function performLike($item_id, $verb)
2467 if (!local_user() && !remote_user()) {
2474 $bodyverb = L10n::t('%1$s likes %2$s\'s %3$s');
2475 $activity = ACTIVITY_LIKE;
2479 $bodyverb = L10n::t('%1$s doesn\'t like %2$s\'s %3$s');
2480 $activity = ACTIVITY_DISLIKE;
2484 $bodyverb = L10n::t('%1$s is attending %2$s\'s %3$s');
2485 $activity = ACTIVITY_ATTEND;
2489 $bodyverb = L10n::t('%1$s is not attending %2$s\'s %3$s');
2490 $activity = ACTIVITY_ATTENDNO;
2493 case 'unattendmaybe':
2494 $bodyverb = L10n::t('%1$s may attend %2$s\'s %3$s');
2495 $activity = ACTIVITY_ATTENDMAYBE;
2498 logger('like: unknown verb ' . $verb . ' for item ' . $item_id);
2502 // Enable activity toggling instead of on/off
2503 $event_verb_flag = $activity === ACTIVITY_ATTEND || $activity === ACTIVITY_ATTENDNO || $activity === ACTIVITY_ATTENDMAYBE;
2505 logger('like: verb ' . $verb . ' item ' . $item_id);
2507 $item = dba::selectFirst('item', [], ['`id` = ? OR `uri` = ?', $item_id, $item_id]);
2508 if (!DBM::is_result($item)) {
2509 logger('like: unknown item ' . $item_id);
2513 $uid = $item['uid'];
2514 if (($uid == 0) && local_user()) {
2515 $uid = local_user();
2518 if (!can_write_wall($uid)) {
2519 logger('like: unable to write on wall ' . $uid);
2523 // Retrieves the local post owner
2524 $owner_self_contact = dba::selectFirst('contact', [], ['uid' => $uid, 'self' => true]);
2525 if (!DBM::is_result($owner_self_contact)) {
2526 logger('like: unknown owner ' . $uid);
2530 // Retrieve the current logged in user's public contact
2531 $author_id = public_contact();
2533 $author_contact = dba::selectFirst('contact', [], ['id' => $author_id]);
2534 if (!DBM::is_result($author_contact)) {
2535 logger('like: unknown author ' . $author_id);
2539 // Contact-id is the uid-dependant author contact
2540 if (local_user() == $uid) {
2541 $item_contact_id = $owner_self_contact['id'];
2542 $item_contact = $owner_self_contact;
2544 $item_contact_id = Contact::getIdForURL($author_contact['url'], $uid, true);
2545 $item_contact = dba::selectFirst('contact', [], ['id' => $item_contact_id]);
2546 if (!DBM::is_result($item_contact)) {
2547 logger('like: unknown item contact ' . $item_contact_id);
2552 // Look for an existing verb row
2553 // event participation are essentially radio toggles. If you make a subsequent choice,
2554 // we need to eradicate your first choice.
2555 if ($event_verb_flag) {
2556 $verbs = "'" . dbesc(ACTIVITY_ATTEND) . "', '" . dbesc(ACTIVITY_ATTENDNO) . "', '" . dbesc(ACTIVITY_ATTENDMAYBE) . "'";
2558 $verbs = "'".dbesc($activity)."'";
2561 /// @todo This query is expected to be a performance eater due to the "OR" - it has to be changed totally
2562 $existing_like = q("SELECT `id`, `guid`, `verb` FROM `item`
2563 WHERE `verb` IN ($verbs)
2565 AND `author-id` = %d
2567 AND (`parent` = '%s' OR `parent-uri` = '%s' OR `thr-parent` = '%s')
2569 intval($author_contact['id']),
2570 intval($item['uid']),
2571 dbesc($item_id), dbesc($item_id), dbesc($item['uri'])
2574 // If it exists, mark it as deleted
2575 if (DBM::is_result($existing_like)) {
2576 $like_item = $existing_like[0];
2578 // Already voted, undo it
2579 $fields = ['deleted' => true, 'unseen' => true, 'changed' => DateTimeFormat::utcNow()];
2580 dba::update('item', $fields, ['id' => $like_item['id']]);
2582 // Clean up the Diaspora signatures for this like
2583 // Go ahead and do it even if Diaspora support is disabled. We still want to clean up
2584 // if it had been enabled in the past
2585 dba::delete('sign', ['iid' => $like_item['id']]);
2587 $like_item_id = $like_item['id'];
2588 Worker::add(PRIORITY_HIGH, "Notifier", "like", $like_item_id);
2590 if (!$event_verb_flag || $like_item['verb'] == $activity) {
2595 // Verb is "un-something", just trying to delete existing entries
2596 if (strpos($verb, 'un') === 0) {
2600 // Else or if event verb different from existing row, create a new item row
2601 $post_type = (($item['resource-id']) ? L10n::t('photo') : L10n::t('status'));
2602 if ($item['object-type'] === ACTIVITY_OBJ_EVENT) {
2603 $post_type = L10n::t('event');
2605 $objtype = $item['resource-id'] ? ACTIVITY_OBJ_IMAGE : ACTIVITY_OBJ_NOTE ;
2606 $link = xmlify('<link rel="alternate" type="text/html" href="' . System::baseUrl() . '/display/' . $owner_self_contact['nick'] . '/' . $item['id'] . '" />' . "\n") ;
2607 $body = $item['body'];
2612 <type>$objtype</type>
2614 <id>{$item['uri']}</id>
2617 <content>$body</content>
2621 $ulink = '[url=' . $author_contact['url'] . ']' . $author_contact['name'] . '[/url]';
2622 $alink = '[url=' . $item['author-link'] . ']' . $item['author-name'] . '[/url]';
2623 $plink = '[url=' . System::baseUrl() . '/display/' . $owner_self_contact['nick'] . '/' . $item['id'] . ']' . $post_type . '[/url]';
2626 'guid' => get_guid(32),
2627 'uri' => self::newURI($item['uid']),
2628 'uid' => $item['uid'],
2629 'contact-id' => $item_contact_id,
2630 'type' => 'activity',
2631 'wall' => $item['wall'],
2633 'gravity' => GRAVITY_LIKE,
2634 'parent' => $item['id'],
2635 'parent-uri' => $item['uri'],
2636 'thr-parent' => $item['uri'],
2637 'owner-id' => $item['owner-id'],
2638 'owner-name' => $item['owner-name'],
2639 'owner-link' => $item['owner-link'],
2640 'owner-avatar' => $item['owner-avatar'],
2641 'author-id' => $author_contact['id'],
2642 'author-name' => $author_contact['name'],
2643 'author-link' => $author_contact['url'],
2644 'author-avatar' => $author_contact['thumb'],
2645 'body' => sprintf($bodyverb, $ulink, $alink, $plink),
2646 'verb' => $activity,
2647 'object-type' => $objtype,
2649 'allow_cid' => $item['allow_cid'],
2650 'allow_gid' => $item['allow_gid'],
2651 'deny_cid' => $item['deny_cid'],
2652 'deny_gid' => $item['deny_gid'],
2657 $new_item_id = self::insert($new_item);
2659 // If the parent item isn't visible then set it to visible
2660 if (!$item['visible']) {
2661 self::update(['visible' => true], ['id' => $item['id']]);
2664 // Save the author information for the like in case we need to relay to Diaspora
2665 Diaspora::storeLikeSignature($item_contact, $new_item_id);
2667 $new_item['id'] = $new_item_id;
2669 Addon::callHooks('post_local_end', $new_item);
2671 Worker::add(PRIORITY_HIGH, "Notifier", "like", $new_item_id);
2676 private static function addThread($itemid, $onlyshadow = false)
2678 $fields = ['uid', 'created', 'edited', 'commented', 'received', 'changed', 'wall', 'private', 'pubmail',
2679 'moderated', 'visible', 'starred', 'bookmark', 'contact-id',
2680 'deleted', 'origin', 'forum_mode', 'mention', 'network', 'author-id', 'owner-id'];
2681 $condition = ["`id` = ? AND (`parent` = ? OR `parent` = 0)", $itemid, $itemid];
2682 $item = dba::selectFirst('item', $fields, $condition);
2684 if (!DBM::is_result($item)) {
2688 $item['iid'] = $itemid;
2691 $result = dba::insert('thread', $item);
2693 logger("Add thread for item ".$itemid." - ".print_r($result, true), LOGGER_DEBUG);
2697 private static function updateThread($itemid, $setmention = false)
2699 $fields = ['uid', 'guid', 'title', 'body', 'created', 'edited', 'commented', 'received', 'changed',
2700 'wall', 'private', 'pubmail', 'moderated', 'visible', 'starred', 'bookmark', 'contact-id',
2701 'deleted', 'origin', 'forum_mode', 'network', 'author-id', 'owner-id', 'rendered-html', 'rendered-hash'];
2702 $condition = ["`id` = ? AND (`parent` = ? OR `parent` = 0)", $itemid, $itemid];
2704 $item = dba::selectFirst('item', $fields, $condition);
2705 if (!DBM::is_result($item)) {
2710 $item["mention"] = 1;
2717 foreach ($item as $field => $data) {
2718 if (!in_array($field, ["guid", "title", "body", "rendered-html", "rendered-hash"])) {
2719 $fields[$field] = $data;
2723 $result = dba::update('thread', $fields, ['iid' => $itemid]);
2725 logger("Update thread for item ".$itemid." - guid ".$item["guid"]." - ".(int)$result, LOGGER_DEBUG);
2727 // Updating a shadow item entry
2728 $items = dba::selectFirst('item', ['id'], ['guid' => $item['guid'], 'uid' => 0]);
2730 if (!DBM::is_result($items)) {
2734 $fields = ['title' => $item['title'], 'body' => $item['body'],
2735 'rendered-html' => $item['rendered-html'], 'rendered-hash' => $item['rendered-hash']];
2736 $result = dba::update('item', $fields, ['id' => $items['id']]);
2738 logger("Updating public shadow for post ".$items["id"]." - guid ".$item["guid"]." Result: ".print_r($result, true), LOGGER_DEBUG);
2741 private static function deleteThread($itemid, $itemuri = "")
2743 $item = dba::selectFirst('thread', ['uid'], ['iid' => $itemid]);
2744 if (!DBM::is_result($item)) {
2745 logger('No thread found for id '.$itemid, LOGGER_DEBUG);
2749 // Using dba::delete at this time could delete the associated item entries
2750 $result = dba::e("DELETE FROM `thread` WHERE `iid` = ?", $itemid);
2752 logger("deleteThread: Deleted thread for item ".$itemid." - ".print_r($result, true), LOGGER_DEBUG);
2754 if ($itemuri != "") {
2755 $condition = ["`uri` = ? AND NOT `deleted` AND NOT (`uid` IN (?, 0))", $itemuri, $item["uid"]];
2756 if (!dba::exists('item', $condition)) {
2757 dba::delete('item', ['uri' => $itemuri, 'uid' => 0]);
2758 logger("deleteThread: Deleted shadow for item ".$itemuri, LOGGER_DEBUG);