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'];
60 * @brief Fetch a single item row
62 * @param mixed $stmt statement object
63 * @return array current row
65 public static function fetch($stmt)
67 $row = dba::fetch($stmt);
69 // We prefer the data from the user's contact over the public one
70 if (!empty($row['author-link']) && !empty($row['contact-link']) &&
71 ($row['author-link'] == $row['contact-link'])) {
72 if (isset($row['author-avatar']) && !empty($row['contact-avatar'])) {
73 $row['author-avatar'] = $row['contact-avatar'];
75 if (isset($row['author-name']) && !empty($row['contact-name'])) {
76 $row['author-name'] = $row['contact-name'];
80 if (!empty($row['owner-link']) && !empty($row['contact-link']) &&
81 ($row['owner-link'] == $row['contact-link'])) {
82 if (isset($row['owner-avatar']) && !empty($row['contact-avatar'])) {
83 $row['owner-avatar'] = $row['contact-avatar'];
85 if (isset($row['owner-name']) && !empty($row['contact-name'])) {
86 $row['owner-name'] = $row['contact-name'];
90 // We can always comment on posts from these networks
91 if (isset($row['writable']) && !empty($row['network']) &&
92 in_array($row['network'], [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS])) {
93 $row['writable'] = true;
100 * @brief Fills an array with data from an item query
102 * @param object $stmt statement object
103 * @return array Data array
105 public static function inArray($stmt, $do_close = true) {
106 if (is_bool($stmt)) {
111 while ($row = self::fetch($stmt)) {
121 * Retrieve a single record from the item table for a given user and returns it in an associative array
123 * @brief Retrieve a single record from a table
124 * @param integer $uid User ID
125 * @param array $fields
126 * @param array $condition
127 * @param array $params
131 public static function selectFirstForUser($uid, array $selected = [], array $condition = [], $params = [])
133 $params['uid'] = $uid;
135 if (empty($selected)) {
136 $selected = Item::DISPLAY_FIELDLIST;
139 return self::selectFirst($selected, $condition, $params);
143 * @brief Select rows from the item table for a given user
145 * @param integer $uid User ID
146 * @param array $selected Array of selected fields, empty for all
147 * @param array $condition Array of fields for condition
148 * @param array $params Array of several parameters
150 * @return boolean|object
152 public static function selectForUser($uid, array $selected = [], array $condition = [], $params = [])
154 $params['uid'] = $uid;
156 if (empty($selected)) {
157 $selected = Item::DISPLAY_FIELDLIST;
160 return self::select($selected, $condition, $params);
164 * Retrieve a single record from the item table and returns it in an associative array
166 * @brief Retrieve a single record from a table
167 * @param array $fields
168 * @param array $condition
169 * @param array $params
173 public static function selectFirst(array $fields = [], array $condition = [], $params = [])
175 $params['limit'] = 1;
177 $result = self::select($fields, $condition, $params);
179 if (is_bool($result)) {
182 $row = self::fetch($result);
189 * @brief Select rows from the item table
191 * @param array $selected Array of selected fields, empty for all
192 * @param array $condition Array of fields for condition
193 * @param array $params Array of several parameters
195 * @return boolean|object
197 public static function select(array $selected = [], array $condition = [], $params = [])
202 if (isset($params['uid'])) {
203 $uid = $params['uid'];
207 $fields = self::fieldlist($selected);
209 $select_fields = self::constructSelectFields($fields, $selected);
211 $condition_string = dba::buildCondition($condition);
213 $condition_string = self::addTablesToFields($condition_string, $fields);
216 $condition_string = $condition_string . ' AND ' . self::condition(false);
219 $param_string = self::addTablesToFields(dba::buildParameter($params), $fields);
221 $table = "`item` " . self::constructJoins($uid, $select_fields . $condition_string . $param_string, false);
223 $sql = "SELECT " . $select_fields . " FROM " . $table . $condition_string . $param_string;
225 return dba::p($sql, $condition);
229 * @brief Select rows from the starting post in the item table
231 * @param integer $uid User ID
232 * @param array $fields Array of selected fields, empty for all
233 * @param array $condition Array of fields for condition
234 * @param array $params Array of several parameters
236 * @return boolean|object
238 public static function selectThreadForUser($uid, array $selected = [], array $condition = [], $params = [])
240 $params['uid'] = $uid;
242 if (empty($selected)) {
243 $selected = Item::DISPLAY_FIELDLIST;
246 return self::selectThread($selected, $condition, $params);
250 * Retrieve a single record from the starting post in the item table and returns it in an associative array
252 * @brief Retrieve a single record from a table
253 * @param integer $uid User ID
254 * @param array $selected
255 * @param array $condition
256 * @param array $params
260 public static function selectFirstThreadForUser($uid, array $selected = [], array $condition = [], $params = [])
262 $params['uid'] = $uid;
264 if (empty($selected)) {
265 $selected = Item::DISPLAY_FIELDLIST;
268 return self::selectFirstThread($selected, $condition, $params);
272 * Retrieve a single record from the starting post in the item table and returns it in an associative array
274 * @brief Retrieve a single record from a table
275 * @param array $fields
276 * @param array $condition
277 * @param array $params
281 public static function selectFirstThread(array $fields = [], array $condition = [], $params = [])
283 $params['limit'] = 1;
284 $result = self::selectThread($fields, $condition, $params);
286 if (is_bool($result)) {
289 $row = self::fetch($result);
296 * @brief Select rows from the starting post in the item table
298 * @param array $selected Array of selected fields, empty for all
299 * @param array $condition Array of fields for condition
300 * @param array $params Array of several parameters
302 * @return boolean|object
304 public static function selectThread(array $selected = [], array $condition = [], $params = [])
309 if (isset($params['uid'])) {
310 $uid = $params['uid'];
314 $fields = self::fieldlist($selected);
316 $threadfields = ['thread' => ['iid', 'uid', 'contact-id', 'owner-id', 'author-id',
317 'created', 'edited', 'commented', 'received', 'changed', 'wall', 'private',
318 'pubmail', 'moderated', 'visible', 'starred', 'ignored', 'bookmark',
319 'unseen', 'deleted', 'origin', 'forum_mode', 'mention', 'network']];
321 $select_fields = self::constructSelectFields($fields, $selected);
323 $condition_string = dba::buildCondition($condition);
325 $condition_string = self::addTablesToFields($condition_string, $threadfields);
326 $condition_string = self::addTablesToFields($condition_string, $fields);
329 $condition_string = $condition_string . ' AND ' . self::condition(true);
332 $param_string = dba::buildParameter($params);
333 $param_string = self::addTablesToFields($param_string, $threadfields);
334 $param_string = self::addTablesToFields($param_string, $fields);
336 $table = "`thread` " . self::constructJoins($uid, $select_fields . $condition_string . $param_string, true);
338 $sql = "SELECT " . $select_fields . " FROM " . $table . $condition_string . $param_string;
340 return dba::p($sql, $condition);
344 * @brief Returns a list of fields that are associated with the item table
346 * @return array field list
348 private static function fieldlist($selected)
352 $fields['item'] = ['id', 'uid', 'parent', 'uri', 'parent-uri', 'thr-parent', 'guid',
353 'contact-id', 'owner-id', 'author-id', 'type', 'wall', 'gravity', 'extid',
354 'created', 'edited', 'commented', 'received', 'changed',
355 'title', 'body', 'app', 'verb', 'object-type', 'object', 'target-type', 'target',
356 'postopts', 'plink', 'resource-id', 'event-id', 'tag', 'attach', 'inform',
357 'file', 'location', 'coord', 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
358 'private', 'pubmail', 'moderated', 'visible', 'starred', 'bookmark',
359 'unseen', 'deleted', 'origin', 'forum_mode', 'mention',
360 'rendered-hash', 'rendered-html', 'global', 'content-warning',
361 'id' => 'item_id', 'network'];
363 $fields['author'] = ['url' => 'author-link', 'name' => 'author-name',
364 'thumb' => 'author-avatar', 'nick' => 'author-nick'];
366 $fields['owner'] = ['url' => 'owner-link', 'name' => 'owner-name',
367 'thumb' => 'owner-avatar', 'nick' => 'owner-nick'];
369 $fields['contact'] = ['url' => 'contact-link', 'name' => 'contact-name', 'thumb' => 'contact-avatar',
370 'writable', 'self', 'id' => 'cid', 'alias', 'uid' => 'contact-uid',
371 'photo', 'name-date', 'uri-date', 'avatar-date', 'thumb', 'dfrn-id'];
373 $fields['parent-item'] = ['guid' => 'parent-guid', 'network' => 'parent-network'];
375 $fields['parent-item-author'] = ['url' => 'parent-author-link', 'name' => 'parent-author-name'];
377 $fields['event'] = ['created' => 'event-created', 'edited' => 'event-edited',
378 'start' => 'event-start','finish' => 'event-finish',
379 'summary' => 'event-summary','desc' => 'event-desc',
380 'location' => 'event-location', 'type' => 'event-type',
381 'nofinish' => 'event-nofinish','adjust' => 'event-adjust',
382 'ignore' => 'event-ignore', 'id' => 'event-id'];
384 $fields['sign'] = ['signed_text', 'signature', 'signer'];
390 * @brief Returns SQL condition for the "select" functions
392 * @param boolean $thread_mode Called for the items (false) or for the threads (true)
394 * @return string SQL condition
396 private static function condition($thread_mode)
399 $master_table = "`thread`";
401 $master_table = "`item`";
403 return "$master_table.`visible` AND NOT $master_table.`deleted` AND NOT $master_table.`moderated` AND (`user-item`.`hidden` IS NULL OR NOT `user-item`.`hidden`) ";
407 * @brief Returns all needed "JOIN" commands for the "select" functions
409 * @param integer $uid User ID
410 * @param string $sql_commands The parts of the built SQL commands in the "select" functions
411 * @param boolean $thread_mode Called for the items (false) or for the threads (true)
413 * @return string The SQL joins for the "select" functions
415 private static function constructJoins($uid, $sql_commands, $thread_mode)
418 $master_table = "`thread`";
419 $master_table_key = "`thread`.`iid`";
420 $joins = "STRAIGHT_JOIN `item` ON `item`.`id` = `thread`.`iid` ";
422 $master_table = "`item`";
423 $master_table_key = "`item`.`id`";
427 $joins .= sprintf("STRAIGHT_JOIN `contact` ON `contact`.`id` = $master_table.`contact-id`
428 AND NOT `contact`.`blocked`
429 AND ((NOT `contact`.`readonly` AND NOT `contact`.`pending` AND (`contact`.`rel` IN (%s, %s)))
430 OR `contact`.`self` OR (`item`.`id` != `item`.`parent`) OR `contact`.`uid` = 0)
431 STRAIGHT_JOIN `contact` AS `author` ON `author`.`id` = $master_table.`author-id` AND NOT `author`.`blocked`
432 STRAIGHT_JOIN `contact` AS `owner` ON `owner`.`id` = $master_table.`owner-id` AND NOT `owner`.`blocked`
433 LEFT JOIN `user-item` ON `user-item`.`iid` = $master_table_key AND `user-item`.`uid` = %d",
434 CONTACT_IS_SHARING, CONTACT_IS_FRIEND, intval($uid));
436 if (strpos($sql_commands, "`group_member`.") !== false) {
437 $joins .= " STRAIGHT_JOIN `group_member` ON `group_member`.`contact-id` = $master_table.`contact-id`";
440 if (strpos($sql_commands, "`user`.") !== false) {
441 $joins .= " STRAIGHT_JOIN `user` ON `user`.`uid` = $master_table.`uid`";
444 if (strpos($sql_commands, "`event`.") !== false) {
445 $joins .= " LEFT JOIN `event` ON `event-id` = `event`.`id`";
448 if (strpos($sql_commands, "`sign`.") !== false) {
449 $joins .= " LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id`";
452 if ((strpos($sql_commands, "`parent-item`.") !== false) || (strpos($sql_commands, "`parent-author`.") !== false)) {
453 $joins .= " STRAIGHT_JOIN `item` AS `parent-item` ON `parent-item`.`id` = `item`.`parent`";
456 if (strpos($sql_commands, "`parent-item-author`.") !== false) {
457 $joins .= " STRAIGHT_JOIN `contact` AS `parent-item-author` ON `parent-item-author`.`id` = `parent-item`.`author-id`";
464 * @brief Add the field list for the "select" functions
466 * @param array $fields The field definition array
467 * @param array $selected The array with the selected fields from the "select" functions
469 * @return string The field list
471 private static function constructSelectFields($fields, $selected)
474 foreach ($fields as $table => $table_fields) {
475 foreach ($table_fields as $field => $select) {
476 if (empty($selected) || in_array($select, $selected)) {
477 if (is_int($field)) {
478 $selection[] = "`" . $table . "`.`".$select."`";
480 $selection[] = "`" . $table . "`.`" . $field . "` AS `".$select ."`";
485 return implode(", ", $selection);
489 * @brief add table definition to fields in an SQL query
491 * @param string $query SQL query
492 * @param array $fields The field definition array
494 * @return string the changed SQL query
496 private static function addTablesToFields($query, $fields)
498 foreach ($fields as $table => $table_fields) {
499 foreach ($table_fields as $alias => $field) {
500 if (is_int($alias)) {
501 $replace_field = $field;
503 $replace_field = $alias;
506 $search = "/([^\.])`" . $field . "`/i";
507 $replace = "$1`" . $table . "`.`" . $replace_field . "`";
508 $query = preg_replace($search, $replace, $query);
515 * @brief Update existing item entries
517 * @param array $fields The fields that are to be changed
518 * @param array $condition The condition for finding the item entries
520 * In the future we may have to change permissions as well.
521 * Then we had to add the user id as third parameter.
523 * A return value of "0" doesn't mean an error - but that 0 rows had been changed.
525 * @return integer|boolean number of affected rows - or "false" if there was an error
527 public static function update(array $fields, array $condition)
529 if (empty($condition) || empty($fields)) {
533 // To ensure the data integrity we do it in an transaction
536 // We cannot simply expand the condition to check for origin entries
537 // The condition needn't to be a simple array but could be a complex condition.
538 // And we have to execute this query before the update to ensure to fetch the same data.
539 $items = dba::select('item', ['id', 'origin'], $condition);
541 $success = dba::update('item', $fields, $condition);
549 $rows = dba::affected_rows();
551 while ($item = dba::fetch($items)) {
552 Term::insertFromTagFieldByItemId($item['id']);
553 Term::insertFromFileFieldByItemId($item['id']);
554 self::updateThread($item['id']);
556 // We only need to notfiy others when it is an original entry from us.
557 // Only call the notifier when the item has some content relevant change.
558 if ($item['origin'] && in_array('edited', array_keys($fields))) {
559 Worker::add(PRIORITY_HIGH, "Notifier", 'edit_post', $item['id']);
569 * @brief Delete an item and notify others about it - if it was ours
571 * @param array $condition The condition for finding the item entries
572 * @param integer $priority Priority for the notification
574 public static function delete($condition, $priority = PRIORITY_HIGH)
576 $items = dba::select('item', ['id'], $condition);
577 while ($item = dba::fetch($items)) {
578 self::deleteById($item['id'], $priority);
584 * @brief Delete an item for an user and notify others about it - if it was ours
586 * @param array $condition The condition for finding the item entries
587 * @param integer $uid User who wants to delete this item
589 public static function deleteForUser($condition, $uid)
595 $items = dba::select('item', ['id', 'uid'], $condition);
596 while ($item = dba::fetch($items)) {
597 // "Deleting" global items just means hiding them
598 if ($item['uid'] == 0) {
599 dba::update('user-item', ['hidden' => true], ['iid' => $item['id'], 'uid' => $uid], true);
600 } elseif ($item['uid'] == $uid) {
601 self::deleteById($item['id'], PRIORITY_HIGH);
603 logger('Wrong ownership. Not deleting item ' . $item['id']);
610 * @brief Delete an item and notify others about it - if it was ours
612 * @param integer $item_id Item ID that should be delete
613 * @param integer $priority Priority for the notification
615 * @return boolean success
617 private static function deleteById($item_id, $priority = PRIORITY_HIGH)
619 // locate item to be deleted
620 $fields = ['id', 'uri', 'uid', 'parent', 'parent-uri', 'origin',
621 'deleted', 'file', 'resource-id', 'event-id', 'attach',
622 'verb', 'object-type', 'object', 'target', 'contact-id'];
623 $item = dba::selectFirst('item', $fields, ['id' => $item_id]);
624 if (!DBM::is_result($item)) {
625 logger('Item with ID ' . $item_id . " hasn't been found.", LOGGER_DEBUG);
629 if ($item['deleted']) {
630 logger('Item with ID ' . $item_id . ' has already been deleted.', LOGGER_DEBUG);
634 $parent = dba::selectFirst('item', ['origin'], ['id' => $item['parent']]);
635 if (!DBM::is_result($parent)) {
636 $parent = ['origin' => false];
639 // clean up categories and tags so they don't end up as orphans
642 $cnt = preg_match_all('/<(.*?)>/', $item['file'], $matches, PREG_SET_ORDER);
644 foreach ($matches as $mtch) {
645 file_tag_unsave_file($item['uid'], $item['id'], $mtch[1],true);
651 $cnt = preg_match_all('/\[(.*?)\]/', $item['file'], $matches, PREG_SET_ORDER);
653 foreach ($matches as $mtch) {
654 file_tag_unsave_file($item['uid'], $item['id'], $mtch[1],false);
659 * If item is a link to a photo resource, nuke all the associated photos
660 * (visitors will not have photo resources)
661 * This only applies to photos uploaded from the photos page. Photos inserted into a post do not
662 * generate a resource-id and therefore aren't intimately linked to the item.
664 if (strlen($item['resource-id'])) {
665 dba::delete('photo', ['resource-id' => $item['resource-id'], 'uid' => $item['uid']]);
668 // If item is a link to an event, delete the event.
669 if (intval($item['event-id'])) {
670 Event::delete($item['event-id']);
673 // If item has attachments, drop them
674 foreach (explode(", ", $item['attach']) as $attach) {
675 preg_match("|attach/(\d+)|", $attach, $matches);
676 dba::delete('attach', ['id' => $matches[1], 'uid' => $item['uid']]);
679 // Delete tags that had been attached to other items
680 self::deleteTagsFromItem($item);
682 // Set the item to "deleted"
683 dba::update('item', ['deleted' => true, 'title' => '', 'body' => '',
684 'edited' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()],
685 ['id' => $item['id']]);
687 Term::insertFromTagFieldByItemId($item['id']);
688 Term::insertFromFileFieldByItemId($item['id']);
689 self::deleteThread($item['id'], $item['parent-uri']);
691 if (!dba::exists('item', ["`uri` = ? AND `uid` != 0 AND NOT `deleted`", $item['uri']])) {
692 self::delete(['uri' => $item['uri'], 'uid' => 0, 'deleted' => false], $priority);
695 // If it's the parent of a comment thread, kill all the kids
696 if ($item['id'] == $item['parent']) {
697 self::delete(['parent' => $item['parent'], 'deleted' => false], $priority);
700 // Is it our comment and/or our thread?
701 if ($item['origin'] || $parent['origin']) {
703 // When we delete the original post we will delete all existing copies on the server as well
704 self::delete(['uri' => $item['uri'], 'deleted' => false], $priority);
706 // send the notification upstream/downstream
707 Worker::add(['priority' => $priority, 'dont_fork' => true], "Notifier", "drop", intval($item['id']));
708 } elseif ($item['uid'] != 0) {
710 // When we delete just our local user copy of an item, we have to set a marker to hide it
711 $global_item = dba::selectFirst('item', ['id'], ['uri' => $item['uri'], 'uid' => 0, 'deleted' => false]);
712 if (DBM::is_result($global_item)) {
713 dba::update('user-item', ['hidden' => true], ['iid' => $global_item['id'], 'uid' => $item['uid']], true);
717 logger('Item with ID ' . $item_id . " has been deleted.", LOGGER_DEBUG);
722 private static function deleteTagsFromItem($item)
724 if (($item["verb"] != ACTIVITY_TAG) || ($item["object-type"] != ACTIVITY_OBJ_TAGTERM)) {
728 $xo = XML::parseString($item["object"], false);
729 $xt = XML::parseString($item["target"], false);
731 if ($xt->type != ACTIVITY_OBJ_NOTE) {
735 $i = dba::selectFirst('item', ['id', 'contact-id', 'tag'], ['uri' => $xt->id, 'uid' => $item['uid']]);
736 if (!DBM::is_result($i)) {
740 // For tags, the owner cannot remove the tag on the author's copy of the post.
741 $owner_remove = ($item["contact-id"] == $i["contact-id"]);
742 $author_copy = $item["origin"];
744 if (($owner_remove && $author_copy) || !$owner_remove) {
748 $tags = explode(',', $i["tag"]);
751 foreach ($tags as $tag) {
752 if (trim($tag) !== trim($xo->body)) {
753 $newtags[] = trim($tag);
757 self::update(['tag' => implode(',', $newtags)], ['id' => $i["id"]]);
760 private static function guid($item, $notify)
762 $guid = notags(trim($item['guid']));
769 // We have to avoid duplicates. So we create the GUID in form of a hash of the plink or uri.
770 // We add the hash of our own host because our host is the original creator of the post.
771 $prefix_host = get_app()->get_hostname();
775 // We are only storing the post so we create a GUID from the original hostname.
776 if (!empty($item['author-link'])) {
777 $parsed = parse_url($item['author-link']);
778 if (!empty($parsed['host'])) {
779 $prefix_host = $parsed['host'];
783 if (empty($prefix_host) && !empty($item['plink'])) {
784 $parsed = parse_url($item['plink']);
785 if (!empty($parsed['host'])) {
786 $prefix_host = $parsed['host'];
790 if (empty($prefix_host) && !empty($item['uri'])) {
791 $parsed = parse_url($item['uri']);
792 if (!empty($parsed['host'])) {
793 $prefix_host = $parsed['host'];
797 // Is it in the format data@host.tld? - Used for mail contacts
798 if (empty($prefix_host) && !empty($item['author-link']) && strstr($item['author-link'], '@')) {
799 $mailparts = explode('@', $item['author-link']);
800 $prefix_host = array_pop($mailparts);
804 if (!empty($item['plink'])) {
805 $guid = self::guidFromUri($item['plink'], $prefix_host);
806 } elseif (!empty($item['uri'])) {
807 $guid = self::guidFromUri($item['uri'], $prefix_host);
809 $guid = get_guid(32, hash('crc32', $prefix_host));
815 private static function contactId($item)
817 $contact_id = (int)$item["contact-id"];
819 if (!empty($contact_id)) {
822 logger('Missing contact-id. Called by: '.System::callstack(), LOGGER_DEBUG);
824 * First we are looking for a suitable contact that matches with the author of the post
825 * This is done only for comments
827 if ($item['parent-uri'] != $item['uri']) {
828 $contact_id = Contact::getIdForURL($item['author-link'], $item['uid']);
831 // If not present then maybe the owner was found
832 if ($contact_id == 0) {
833 $contact_id = Contact::getIdForURL($item['owner-link'], $item['uid']);
836 // Still missing? Then use the "self" contact of the current user
837 if ($contact_id == 0) {
838 $self = dba::selectFirst('contact', ['id'], ['self' => true, 'uid' => $item['uid']]);
839 if (DBM::is_result($self)) {
840 $contact_id = $self["id"];
843 logger("Contact-id was missing for post ".$item['guid']." from user id ".$item['uid']." - now set to ".$contact_id, LOGGER_DEBUG);
848 public static function insert($item, $force_parent = false, $notify = false, $dontcache = false)
852 // If it is a posting where users should get notifications, then define it as wall posting
855 $item['type'] = 'wall';
857 $item['network'] = NETWORK_DFRN;
858 $item['protocol'] = PROTOCOL_DFRN;
860 if (is_int($notify)) {
863 $priority = PRIORITY_HIGH;
866 $item['network'] = trim(defaults($item, 'network', NETWORK_PHANTOM));
869 $item['guid'] = self::guid($item, $notify);
870 $item['uri'] = notags(trim(defaults($item, 'uri', self::newURI($item['uid'], $item['guid']))));
872 // Store conversation data
873 $item = Conversation::insert($item);
876 * If a Diaspora signature structure was passed in, pull it out of the
877 * item array and set it aside for later storage.
881 if (x($item, 'dsprsig')) {
882 $encoded_signature = $item['dsprsig'];
883 $dsprsig = json_decode(base64_decode($item['dsprsig']));
884 unset($item['dsprsig']);
887 if (!empty($item['diaspora_signed_text'])) {
888 $diaspora_signed_text = $item['diaspora_signed_text'];
889 unset($item['diaspora_signed_text']);
891 $diaspora_signed_text = '';
894 // Converting the plink
895 /// @TODO Check if this is really still needed
896 if ($item['network'] == NETWORK_OSTATUS) {
897 if (isset($item['plink'])) {
898 $item['plink'] = OStatus::convertHref($item['plink']);
899 } elseif (isset($item['uri'])) {
900 $item['plink'] = OStatus::convertHref($item['uri']);
904 if (!empty($item['thr-parent'])) {
905 $item['parent-uri'] = $item['thr-parent'];
908 if (x($item, 'gravity')) {
909 $item['gravity'] = intval($item['gravity']);
910 } elseif ($item['parent-uri'] === $item['uri']) {
911 $item['gravity'] = 0;
912 } elseif (activity_match($item['verb'],ACTIVITY_POST)) {
913 $item['gravity'] = 6;
915 $item['gravity'] = 6; // extensible catchall
918 $item['type'] = defaults($item, 'type', 'remote');
920 $uid = intval($item['uid']);
922 // check for create date and expire time
923 $expire_interval = Config::get('system', 'dbclean-expire-days', 0);
925 $user = dba::selectFirst('user', ['expire'], ['uid' => $uid]);
926 if (DBM::is_result($user) && ($user['expire'] > 0) && (($user['expire'] < $expire_interval) || ($expire_interval == 0))) {
927 $expire_interval = $user['expire'];
930 if (($expire_interval > 0) && !empty($item['created'])) {
931 $expire_date = time() - ($expire_interval * 86400);
932 $created_date = strtotime($item['created']);
933 if ($created_date < $expire_date) {
934 logger('item-store: item created ('.date('c', $created_date).') before expiration time ('.date('c', $expire_date).'). ignored. ' . print_r($item,true), LOGGER_DEBUG);
940 * Do we already have this item?
941 * We have to check several networks since Friendica posts could be repeated
942 * via OStatus (maybe Diasporsa as well)
944 if (in_array($item['network'], [NETWORK_DIASPORA, NETWORK_DFRN, NETWORK_OSTATUS, ""])) {
945 $condition = ["`uri` = ? AND `uid` = ? AND `network` IN (?, ?, ?)",
946 trim($item['uri']), $item['uid'],
947 NETWORK_DIASPORA, NETWORK_DFRN, NETWORK_OSTATUS];
948 $existing = dba::selectFirst('item', ['id', 'network'], $condition);
949 if (DBM::is_result($existing)) {
950 // We only log the entries with a different user id than 0. Otherwise we would have too many false positives
952 logger("Item with uri ".$item['uri']." already existed for user ".$uid." with id ".$existing["id"]." target network ".$existing["network"]." - new network: ".$item['network']);
955 return $existing["id"];
959 self::addLanguageInPostopts($item);
961 $item['wall'] = intval(defaults($item, 'wall', 0));
962 $item['extid'] = trim(defaults($item, 'extid', ''));
963 $item['author-name'] = trim(defaults($item, 'author-name', ''));
964 $item['author-link'] = trim(defaults($item, 'author-link', ''));
965 $item['author-avatar'] = trim(defaults($item, 'author-avatar', ''));
966 $item['owner-name'] = trim(defaults($item, 'owner-name', ''));
967 $item['owner-link'] = trim(defaults($item, 'owner-link', ''));
968 $item['owner-avatar'] = trim(defaults($item, 'owner-avatar', ''));
969 $item['received'] = ((x($item, 'received') !== false) ? DateTimeFormat::utc($item['received']) : DateTimeFormat::utcNow());
970 $item['created'] = ((x($item, 'created') !== false) ? DateTimeFormat::utc($item['created']) : $item['received']);
971 $item['edited'] = ((x($item, 'edited') !== false) ? DateTimeFormat::utc($item['edited']) : $item['created']);
972 $item['changed'] = ((x($item, 'changed') !== false) ? DateTimeFormat::utc($item['changed']) : $item['created']);
973 $item['commented'] = ((x($item, 'commented') !== false) ? DateTimeFormat::utc($item['commented']) : $item['created']);
974 $item['title'] = trim(defaults($item, 'title', ''));
975 $item['location'] = trim(defaults($item, 'location', ''));
976 $item['coord'] = trim(defaults($item, 'coord', ''));
977 $item['visible'] = ((x($item, 'visible') !== false) ? intval($item['visible']) : 1);
978 $item['deleted'] = 0;
979 $item['parent-uri'] = trim(defaults($item, 'parent-uri', $item['uri']));
980 $item['verb'] = trim(defaults($item, 'verb', ''));
981 $item['object-type'] = trim(defaults($item, 'object-type', ''));
982 $item['object'] = trim(defaults($item, 'object', ''));
983 $item['target-type'] = trim(defaults($item, 'target-type', ''));
984 $item['target'] = trim(defaults($item, 'target', ''));
985 $item['plink'] = trim(defaults($item, 'plink', ''));
986 $item['allow_cid'] = trim(defaults($item, 'allow_cid', ''));
987 $item['allow_gid'] = trim(defaults($item, 'allow_gid', ''));
988 $item['deny_cid'] = trim(defaults($item, 'deny_cid', ''));
989 $item['deny_gid'] = trim(defaults($item, 'deny_gid', ''));
990 $item['private'] = intval(defaults($item, 'private', 0));
991 $item['bookmark'] = intval(defaults($item, 'bookmark', 0));
992 $item['body'] = trim(defaults($item, 'body', ''));
993 $item['tag'] = trim(defaults($item, 'tag', ''));
994 $item['attach'] = trim(defaults($item, 'attach', ''));
995 $item['app'] = trim(defaults($item, 'app', ''));
996 $item['origin'] = intval(defaults($item, 'origin', 0));
997 $item['postopts'] = trim(defaults($item, 'postopts', ''));
998 $item['resource-id'] = trim(defaults($item, 'resource-id', ''));
999 $item['event-id'] = intval(defaults($item, 'event-id', 0));
1000 $item['inform'] = trim(defaults($item, 'inform', ''));
1001 $item['file'] = trim(defaults($item, 'file', ''));
1003 // When there is no content then we don't post it
1004 if ($item['body'].$item['title'] == '') {
1008 // Items cannot be stored before they happen ...
1009 if ($item['created'] > DateTimeFormat::utcNow()) {
1010 $item['created'] = DateTimeFormat::utcNow();
1013 // We haven't invented time travel by now.
1014 if ($item['edited'] > DateTimeFormat::utcNow()) {
1015 $item['edited'] = DateTimeFormat::utcNow();
1018 if (($item['author-link'] == "") && ($item['owner-link'] == "")) {
1019 logger("Both author-link and owner-link are empty. Called by: " . System::callstack(), LOGGER_DEBUG);
1022 $item['plink'] = defaults($item, 'plink', System::baseUrl() . '/display/' . urlencode($item['guid']));
1024 // The contact-id should be set before "self::insert" was called - but there seems to be issues sometimes
1025 $item["contact-id"] = self::contactId($item);
1027 $default = ['url' => $item['author-link'], 'name' => $item['author-name'],
1028 'photo' => $item['author-avatar'], 'network' => $item['network']];
1030 $item['author-id'] = defaults($item, 'author-id', Contact::getIdForURL($item["author-link"], 0, false, $default));
1032 if (Contact::isBlocked($item["author-id"])) {
1033 logger('Contact '.$item["author-id"].' is blocked, item '.$item["uri"].' will not be stored');
1037 $default = ['url' => $item['owner-link'], 'name' => $item['owner-name'],
1038 'photo' => $item['owner-avatar'], 'network' => $item['network']];
1040 $item['owner-id'] = defaults($item, 'owner-id', Contact::getIdForURL($item["owner-link"], 0, false, $default));
1042 if (Contact::isBlocked($item["owner-id"])) {
1043 logger('Contact '.$item["owner-id"].' is blocked, item '.$item["uri"].' will not be stored');
1047 //unset($item['author-link']);
1048 unset($item['author-name']);
1049 unset($item['author-avatar']);
1051 //unset($item['owner-link']);
1052 unset($item['owner-name']);
1053 unset($item['owner-avatar']);
1055 if ($item['network'] == NETWORK_PHANTOM) {
1056 logger('Missing network. Called by: '.System::callstack(), LOGGER_DEBUG);
1058 $contact = Contact::getDetailsByURL($item['author-link'], $item['uid']);
1059 if (!empty($contact['network'])) {
1060 $item['network'] = $contact["network"];
1062 $item['network'] = NETWORK_DFRN;
1064 logger("Set network to " . $item["network"] . " for " . $item["uri"], LOGGER_DEBUG);
1067 // Checking if there is already an item with the same guid
1068 logger('Checking for an item for user '.$item['uid'].' on network '.$item['network'].' with the guid '.$item['guid'], LOGGER_DEBUG);
1069 $condition = ['guid' => $item['guid'], 'network' => $item['network'], 'uid' => $item['uid']];
1070 if (dba::exists('item', $condition)) {
1071 logger('found item with guid '.$item['guid'].' for user '.$item['uid'].' on network '.$item['network'], LOGGER_DEBUG);
1075 // Check for hashtags in the body and repair or add hashtag links
1076 self::setHashtags($item);
1078 $item['thr-parent'] = $item['parent-uri'];
1086 if ($item['parent-uri'] === $item['uri']) {
1088 $parent_deleted = 0;
1089 $allow_cid = $item['allow_cid'];
1090 $allow_gid = $item['allow_gid'];
1091 $deny_cid = $item['deny_cid'];
1092 $deny_gid = $item['deny_gid'];
1093 $notify_type = 'wall-new';
1095 // find the parent and snarf the item id and ACLs
1096 // and anything else we need to inherit
1098 $fields = ['uri', 'parent-uri', 'id', 'deleted',
1099 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
1100 'wall', 'private', 'forum_mode', 'origin'];
1101 $condition = ['uri' => $item['parent-uri'], 'uid' => $item['uid']];
1102 $params = ['order' => ['id' => false]];
1103 $parent = dba::selectFirst('item', $fields, $condition, $params);
1105 if (DBM::is_result($parent)) {
1106 // is the new message multi-level threaded?
1107 // even though we don't support it now, preserve the info
1108 // and re-attach to the conversation parent.
1110 if ($parent['uri'] != $parent['parent-uri']) {
1111 $item['parent-uri'] = $parent['parent-uri'];
1113 $condition = ['uri' => $item['parent-uri'],
1114 'parent-uri' => $item['parent-uri'],
1115 'uid' => $item['uid']];
1116 $params = ['order' => ['id' => false]];
1117 $toplevel_parent = dba::selectFirst('item', $fields, $condition, $params);
1119 if (DBM::is_result($toplevel_parent)) {
1120 $parent = $toplevel_parent;
1124 $parent_id = $parent['id'];
1125 $parent_deleted = $parent['deleted'];
1126 $allow_cid = $parent['allow_cid'];
1127 $allow_gid = $parent['allow_gid'];
1128 $deny_cid = $parent['deny_cid'];
1129 $deny_gid = $parent['deny_gid'];
1130 $item['wall'] = $parent['wall'];
1131 $notify_type = 'comment-new';
1134 * If the parent is private, force privacy for the entire conversation
1135 * This differs from the above settings as it subtly allows comments from
1136 * email correspondents to be private even if the overall thread is not.
1138 if ($parent['private']) {
1139 $item['private'] = $parent['private'];
1143 * Edge case. We host a public forum that was originally posted to privately.
1144 * The original author commented, but as this is a comment, the permissions
1145 * weren't fixed up so it will still show the comment as private unless we fix it here.
1147 if ((intval($parent['forum_mode']) == 1) && $parent['private']) {
1148 $item['private'] = 0;
1151 // If its a post from myself then tag the thread as "mention"
1152 logger("Checking if parent ".$parent_id." has to be tagged as mention for user ".$item['uid'], LOGGER_DEBUG);
1153 $user = dba::selectFirst('user', ['nickname'], ['uid' => $item['uid']]);
1154 if (DBM::is_result($user)) {
1155 $self = normalise_link(System::baseUrl() . '/profile/' . $user['nickname']);
1156 $self_id = Contact::getIdForURL($self, 0, true);
1157 logger("'myself' is ".$self_id." for parent ".$parent_id." checking against ".$item['author-id']." and ".$item['owner-id'], LOGGER_DEBUG);
1158 if (($item['author-id'] == $self_id) || ($item['owner-id'] == $self_id)) {
1159 dba::update('thread', ['mention' => true], ['iid' => $parent_id]);
1160 logger("tagged thread ".$parent_id." as mention for user ".$self, LOGGER_DEBUG);
1165 * Allow one to see reply tweets from status.net even when
1166 * we don't have or can't see the original post.
1168 if ($force_parent) {
1169 logger('$force_parent=true, reply converted to top-level post.');
1171 $item['parent-uri'] = $item['uri'];
1172 $item['gravity'] = 0;
1174 logger('item parent '.$item['parent-uri'].' for '.$item['uid'].' was not found - ignoring item');
1178 $parent_deleted = 0;
1182 $condition = ["`uri` = ? AND `network` IN (?, ?) AND `uid` = ?",
1183 $item['uri'], $item['network'], NETWORK_DFRN, $item['uid']];
1184 if (dba::exists('item', $condition)) {
1185 logger('duplicated item with the same uri found. '.print_r($item,true));
1189 // On Friendica and Diaspora the GUID is unique
1190 if (in_array($item['network'], [NETWORK_DFRN, NETWORK_DIASPORA])) {
1191 $condition = ['guid' => $item['guid'], 'uid' => $item['uid']];
1192 if (dba::exists('item', $condition)) {
1193 logger('duplicated item with the same guid found. '.print_r($item,true));
1197 // Check for an existing post with the same content. There seems to be a problem with OStatus.
1198 $condition = ["`body` = ? AND `network` = ? AND `created` = ? AND `contact-id` = ? AND `uid` = ?",
1199 $item['body'], $item['network'], $item['created'], $item['contact-id'], $item['uid']];
1200 if (dba::exists('item', $condition)) {
1201 logger('duplicated item with the same body found. '.print_r($item,true));
1206 // Is this item available in the global items (with uid=0)?
1207 if ($item["uid"] == 0) {
1208 $item["global"] = true;
1210 // Set the global flag on all items if this was a global item entry
1211 dba::update('item', ['global' => true], ['uri' => $item["uri"]]);
1213 $item["global"] = dba::exists('item', ['uid' => 0, 'uri' => $item["uri"]]);
1217 if (strlen($allow_cid) || strlen($allow_gid) || strlen($deny_cid) || strlen($deny_gid)) {
1220 $private = $item['private'];
1223 $item["allow_cid"] = $allow_cid;
1224 $item["allow_gid"] = $allow_gid;
1225 $item["deny_cid"] = $deny_cid;
1226 $item["deny_gid"] = $deny_gid;
1227 $item["private"] = $private;
1228 $item["deleted"] = $parent_deleted;
1230 // Fill the cache field
1231 put_item_in_cache($item);
1234 Addon::callHooks('post_local', $item);
1236 Addon::callHooks('post_remote', $item);
1239 // This array field is used to trigger some automatic reactions
1240 // It is mainly used in the "post_local" hook.
1241 unset($item['api_source']);
1243 if (x($item, 'cancel')) {
1244 logger('post cancelled by addon.');
1249 * Check for already added items.
1250 * There is a timing issue here that sometimes creates double postings.
1251 * An unique index would help - but the limitations of MySQL (maximum size of index values) prevent this.
1253 if ($item["uid"] == 0) {
1254 if (dba::exists('item', ['uri' => trim($item['uri']), 'uid' => 0])) {
1255 logger('Global item already stored. URI: '.$item['uri'].' on network '.$item['network'], LOGGER_DEBUG);
1260 logger('' . print_r($item,true), LOGGER_DATA);
1263 $ret = dba::insert('item', $item);
1265 // When the item was successfully stored we fetch the ID of the item.
1266 if (DBM::is_result($ret)) {
1267 $current_post = dba::lastInsertId();
1269 // This can happen - for example - if there are locking timeouts.
1272 // Store the data into a spool file so that we can try again later.
1274 // At first we restore the Diaspora signature that we removed above.
1275 if (isset($encoded_signature)) {
1276 $item['dsprsig'] = $encoded_signature;
1279 // Now we store the data in the spool directory
1280 // We use "microtime" to keep the arrival order and "mt_rand" to avoid duplicates
1281 $file = 'item-'.round(microtime(true) * 10000).'-'.mt_rand().'.msg';
1283 $spoolpath = get_spoolpath();
1284 if ($spoolpath != "") {
1285 $spool = $spoolpath.'/'.$file;
1286 file_put_contents($spool, json_encode($item));
1287 logger("Item wasn't stored - Item was spooled into file ".$file, LOGGER_DEBUG);
1292 if ($current_post == 0) {
1293 // This is one of these error messages that never should occur.
1294 logger("couldn't find created item - we better quit now.");
1299 // How much entries have we created?
1300 // We wouldn't need this query when we could use an unique index - but MySQL has length problems with them.
1301 $entries = dba::count('item', ['uri' => $item['uri'], 'uid' => $item['uid'], 'network' => $item['network']]);
1304 // There are duplicates. We delete our just created entry.
1305 logger('Duplicated post occurred. uri = ' . $item['uri'] . ' uid = ' . $item['uid']);
1307 // Yes, we could do a rollback here - but we are having many users with MyISAM.
1308 dba::delete('item', ['id' => $current_post]);
1311 } elseif ($entries == 0) {
1312 // This really should never happen since we quit earlier if there were problems.
1313 logger("Something is terribly wrong. We haven't found our created entry.");
1318 logger('created item '.$current_post);
1319 self::updateContact($item);
1321 if (!$parent_id || ($item['parent-uri'] === $item['uri'])) {
1322 $parent_id = $current_post;
1326 dba::update('item', ['parent' => $parent_id], ['id' => $current_post]);
1328 $item['id'] = $current_post;
1329 $item['parent'] = $parent_id;
1331 // update the commented timestamp on the parent
1332 // Only update "commented" if it is really a comment
1333 if (($item['verb'] == ACTIVITY_POST) || !Config::get("system", "like_no_comment")) {
1334 dba::update('item', ['commented' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
1336 dba::update('item', ['changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
1341 * Friendica servers lower than 3.4.3-2 had double encoded the signature ...
1342 * We can check for this condition when we decode and encode the stuff again.
1344 if (base64_encode(base64_decode(base64_decode($dsprsig->signature))) == base64_decode($dsprsig->signature)) {
1345 $dsprsig->signature = base64_decode($dsprsig->signature);
1346 logger("Repaired double encoded signature from handle ".$dsprsig->signer, LOGGER_DEBUG);
1349 dba::insert('sign', ['iid' => $current_post, 'signed_text' => $dsprsig->signed_text,
1350 'signature' => $dsprsig->signature, 'signer' => $dsprsig->signer]);
1353 if (!empty($diaspora_signed_text)) {
1354 // Formerly we stored the signed text, the signature and the author in different fields.
1355 // We now store the raw data so that we are more flexible.
1356 dba::insert('sign', ['iid' => $current_post, 'signed_text' => $diaspora_signed_text]);
1359 $deleted = self::tagDeliver($item['uid'], $current_post);
1362 * current post can be deleted if is for a community page and no mention are
1365 if (!$deleted && !$dontcache) {
1366 $posted_item = dba::selectFirst('item', [], ['id' => $current_post]);
1367 if (DBM::is_result($posted_item)) {
1369 Addon::callHooks('post_local_end', $posted_item);
1371 Addon::callHooks('post_remote_end', $posted_item);
1374 logger('new item not found in DB, id ' . $current_post);
1378 if ($item['parent-uri'] === $item['uri']) {
1379 self::addThread($current_post);
1381 self::updateThread($parent_id);
1387 * Due to deadlock issues with the "term" table we are doing these steps after the commit.
1388 * This is not perfect - but a workable solution until we found the reason for the problem.
1390 Term::insertFromTagFieldByItemId($current_post);
1391 Term::insertFromFileFieldByItemId($current_post);
1393 if ($item['parent-uri'] === $item['uri']) {
1394 self::addShadow($current_post);
1396 self::addShadowPost($current_post);
1399 check_user_notification($current_post);
1402 Worker::add(['priority' => $priority, 'dont_fork' => true], "Notifier", $notify_type, $current_post);
1403 } elseif (!empty($parent) && $parent['origin']) {
1404 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "Notifier", "comment-import", $current_post);
1407 return $current_post;
1411 * @brief Distributes public items to the receivers
1413 * @param integer $itemid Item ID that should be added
1414 * @param string $signed_text Original text (for Diaspora signatures), JSON encoded.
1416 public static function distribute($itemid, $signed_text = '')
1418 $condition = ["`id` IN (SELECT `parent` FROM `item` WHERE `id` = ?)", $itemid];
1419 $parent = dba::selectFirst('item', ['owner-id'], $condition);
1420 if (!DBM::is_result($parent)) {
1424 // Only distribute public items from native networks
1425 $condition = ['id' => $itemid, 'uid' => 0,
1426 'network' => [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""],
1427 'visible' => true, 'deleted' => false, 'moderated' => false, 'private' => false];
1428 $item = dba::selectFirst('item', [], ['id' => $itemid]);
1429 if (!DBM::is_result($item)) {
1434 unset($item['parent']);
1435 unset($item['mention']);
1436 unset($item['wall']);
1437 unset($item['origin']);
1438 unset($item['starred']);
1439 unset($item['rendered-hash']);
1440 unset($item['rendered-html']);
1444 $condition = ["`nurl` IN (SELECT `nurl` FROM `contact` WHERE `id` = ?) AND `uid` != 0 AND NOT `blocked` AND `rel` IN (?, ?)",
1445 $parent['owner-id'], CONTACT_IS_SHARING, CONTACT_IS_FRIEND];
1446 $contacts = dba::select('contact', ['uid'], $condition);
1447 while ($contact = dba::fetch($contacts)) {
1448 $users[$contact['uid']] = $contact['uid'];
1453 if ($item['uri'] != $item['parent-uri']) {
1454 $parents = dba::select('item', ['uid', 'origin'], ["`uri` = ? AND `uid` != 0", $item['parent-uri']]);
1455 while ($parent = dba::fetch($parents)) {
1456 $users[$parent['uid']] = $parent['uid'];
1457 if ($parent['origin'] && !$item['origin']) {
1458 $origin_uid = $parent['uid'];
1463 foreach ($users as $uid) {
1464 if ($origin_uid == $uid) {
1465 $item['diaspora_signed_text'] = $signed_text;
1467 self::storeForUser($itemid, $item, $uid);
1472 * @brief Store public items for the receivers
1474 * @param integer $itemid Item ID that should be added
1475 * @param array $item The item entry that will be stored
1476 * @param integer $uid The user that will receive the item entry
1478 private static function storeForUser($itemid, $item, $uid)
1480 $item['uid'] = $uid;
1481 $item['origin'] = 0;
1483 if ($item['uri'] == $item['parent-uri']) {
1484 $item['contact-id'] = Contact::getIdForURL($item['owner-link'], $uid);
1486 $item['contact-id'] = Contact::getIdForURL($item['author-link'], $uid);
1489 if (empty($item['contact-id'])) {
1490 $self = dba::selectFirst('contact', ['id'], ['self' => true, 'uid' => $uid]);
1491 if (!DBM::is_result($self)) {
1494 $item['contact-id'] = $self['id'];
1497 if (in_array($item['type'], ["net-comment", "wall-comment"])) {
1498 $item['type'] = 'remote-comment';
1499 } elseif ($item['type'] == 'wall') {
1500 $item['type'] = 'remote';
1503 /// @todo Handling of "event-id"
1506 if ($item['uri'] == $item['parent-uri']) {
1507 $contact = dba::selectFirst('contact', [], ['id' => $item['contact-id'], 'self' => false]);
1508 if (DBM::is_result($contact)) {
1509 $notify = self::isRemoteSelf($contact, $item);
1513 $distributed = self::insert($item, false, $notify, true);
1515 if (!$distributed) {
1516 logger("Distributed public item " . $itemid . " for user " . $uid . " wasn't stored", LOGGER_DEBUG);
1518 logger("Distributed public item " . $itemid . " for user " . $uid . " with id " . $distributed, LOGGER_DEBUG);
1523 * @brief Add a shadow entry for a given item id that is a thread starter
1525 * We store every public item entry additionally with the user id "0".
1526 * This is used for the community page and for the search.
1527 * It is planned that in the future we will store public item entries only once.
1529 * @param integer $itemid Item ID that should be added
1531 public static function addShadow($itemid)
1533 $fields = ['uid', 'private', 'moderated', 'visible', 'deleted', 'network'];
1534 $condition = ['id' => $itemid, 'parent' => [0, $itemid]];
1535 $item = dba::selectFirst('item', $fields, $condition);
1537 if (!DBM::is_result($item)) {
1541 // is it already a copy?
1542 if (($itemid == 0) || ($item['uid'] == 0)) {
1546 // Is it a visible public post?
1547 if (!$item["visible"] || $item["deleted"] || $item["moderated"] || $item["private"]) {
1551 // is it an entry from a connector? Only add an entry for natively connected networks
1552 if (!in_array($item["network"], [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""])) {
1556 $item = dba::selectFirst('item', [], ['id' => $itemid]);
1558 if (DBM::is_result($item) && ($item["allow_cid"] == '') && ($item["allow_gid"] == '') &&
1559 ($item["deny_cid"] == '') && ($item["deny_gid"] == '')) {
1561 if (!dba::exists('item', ['uri' => $item['uri'], 'uid' => 0])) {
1562 // Preparing public shadow (removing user specific data)
1565 unset($item['parent']);
1566 unset($item['wall']);
1567 unset($item['mention']);
1568 unset($item['origin']);
1569 unset($item['starred']);
1570 unset($item['rendered-hash']);
1571 unset($item['rendered-html']);
1572 if ($item['uri'] == $item['parent-uri']) {
1573 $item['contact-id'] = Contact::getIdForURL($item['owner-link']);
1575 $item['contact-id'] = Contact::getIdForURL($item['author-link']);
1578 if (in_array($item['type'], ["net-comment", "wall-comment"])) {
1579 $item['type'] = 'remote-comment';
1580 } elseif ($item['type'] == 'wall') {
1581 $item['type'] = 'remote';
1584 $public_shadow = self::insert($item, false, false, true);
1586 logger("Stored public shadow for thread ".$itemid." under id ".$public_shadow, LOGGER_DEBUG);
1592 * @brief Add a shadow entry for a given item id that is a comment
1594 * This function does the same like the function above - but for comments
1596 * @param integer $itemid Item ID that should be added
1598 public static function addShadowPost($itemid)
1600 $item = dba::selectFirst('item', [], ['id' => $itemid]);
1601 if (!DBM::is_result($item)) {
1605 // Is it a toplevel post?
1606 if ($item['id'] == $item['parent']) {
1607 self::addShadow($itemid);
1611 // Is this a shadow entry?
1612 if ($item['uid'] == 0) {
1616 // Is there a shadow parent?
1617 if (!dba::exists('item', ['uri' => $item['parent-uri'], 'uid' => 0])) {
1621 // Is there already a shadow entry?
1622 if (dba::exists('item', ['uri' => $item['uri'], 'uid' => 0])) {
1626 // Save "origin" and "parent" state
1627 $origin = $item['origin'];
1628 $parent = $item['parent'];
1630 // Preparing public shadow (removing user specific data)
1633 unset($item['parent']);
1634 unset($item['wall']);
1635 unset($item['mention']);
1636 unset($item['origin']);
1637 unset($item['starred']);
1638 unset($item['rendered-hash']);
1639 unset($item['rendered-html']);
1640 $item['contact-id'] = Contact::getIdForURL($item['author-link']);
1642 if (in_array($item['type'], ["net-comment", "wall-comment"])) {
1643 $item['type'] = 'remote-comment';
1644 } elseif ($item['type'] == 'wall') {
1645 $item['type'] = 'remote';
1648 $public_shadow = self::insert($item, false, false, true);
1650 logger("Stored public shadow for comment ".$item['uri']." under id ".$public_shadow, LOGGER_DEBUG);
1652 // If this was a comment to a Diaspora post we don't get our comment back.
1653 // This means that we have to distribute the comment by ourselves.
1654 if ($origin && dba::exists('item', ['id' => $parent, 'network' => NETWORK_DIASPORA])) {
1655 self::distribute($public_shadow);
1660 * Adds a "lang" specification in a "postopts" element of given $arr,
1661 * if possible and not already present.
1662 * Expects "body" element to exist in $arr.
1664 private static function addLanguageInPostopts(&$item)
1668 if (!empty($item['postopts'])) {
1669 if (strstr($item['postopts'], 'lang=')) {
1673 $postopts = $item['postopts'];
1676 $naked_body = Text\BBCode::toPlaintext($item['body'], false);
1678 $languages = (new Text_LanguageDetect())->detect($naked_body, 3);
1680 if (sizeof($languages) > 0) {
1681 if ($postopts != '') {
1682 $postopts .= '&'; // arbitrary separator, to be reviewed
1685 $postopts .= 'lang=';
1688 foreach ($languages as $language => $score) {
1689 $postopts .= $sep . $language . ";" . $score;
1692 $item['postopts'] = $postopts;
1697 * @brief Creates an unique guid out of a given uri
1699 * @param string $uri uri of an item entry
1700 * @param string $host hostname for the GUID prefix
1701 * @return string unique guid
1703 public static function guidFromUri($uri, $host)
1705 // Our regular guid routine is using this kind of prefix as well
1706 // We have to avoid that different routines could accidentally create the same value
1707 $parsed = parse_url($uri);
1709 // We use a hash of the hostname as prefix for the guid
1710 $guid_prefix = hash("crc32", $host);
1712 // Remove the scheme to make sure that "https" and "http" doesn't make a difference
1713 unset($parsed["scheme"]);
1715 // Glue it together to be able to make a hash from it
1716 $host_id = implode("/", $parsed);
1718 // We could use any hash algorithm since it isn't a security issue
1719 $host_hash = hash("ripemd128", $host_id);
1721 return $guid_prefix.$host_hash;
1725 * generate an unique URI
1727 * @param integer $uid User id
1728 * @param string $guid An existing GUID (Otherwise it will be generated)
1732 public static function newURI($uid, $guid = "")
1735 $guid = get_guid(32);
1738 $hostname = self::getApp()->get_hostname();
1740 $user = dba::selectFirst('user', ['nickname'], ['uid' => $uid]);
1742 $uri = "urn:X-dfrn:" . $hostname . ':' . $user['nickname'] . ':' . $guid;
1748 * @brief Set "success_update" and "last-item" to the date of the last time we heard from this contact
1750 * This can be used to filter for inactive contacts.
1751 * Only do this for public postings to avoid privacy problems, since poco data is public.
1752 * Don't set this value if it isn't from the owner (could be an author that we don't know)
1754 * @param array $arr Contains the just posted item record
1756 private static function updateContact($arr)
1758 // Unarchive the author
1759 $contact = dba::selectFirst('contact', [], ['id' => $arr["author-id"]]);
1760 if (DBM::is_result($contact)) {
1761 Contact::unmarkForArchival($contact);
1764 // Unarchive the contact if it's not our own contact
1765 $contact = dba::selectFirst('contact', [], ['id' => $arr["contact-id"], 'self' => false]);
1766 if (DBM::is_result($contact)) {
1767 Contact::unmarkForArchival($contact);
1770 $update = (!$arr['private'] && (($arr["author-link"] === $arr["owner-link"]) || ($arr["parent-uri"] === $arr["uri"])));
1772 // Is it a forum? Then we don't care about the rules from above
1773 if (!$update && ($arr["network"] == NETWORK_DFRN) && ($arr["parent-uri"] === $arr["uri"])) {
1774 if (dba::exists('contact', ['id' => $arr['contact-id'], 'forum' => true])) {
1780 dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
1781 ['id' => $arr['contact-id']]);
1783 // Now do the same for the system wide contacts with uid=0
1784 if (!$arr['private']) {
1785 dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
1786 ['id' => $arr['owner-id']]);
1788 if ($arr['owner-id'] != $arr['author-id']) {
1789 dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
1790 ['id' => $arr['author-id']]);
1795 public static function setHashtags(&$item)
1798 $tags = get_tags($item["body"]);
1801 if (!count($tags)) {
1805 // This sorting is important when there are hashtags that are part of other hashtags
1806 // Otherwise there could be problems with hashtags like #test and #test2
1809 $URLSearchString = "^\[\]";
1811 // All hashtags should point to the home server if "local_tags" is activated
1812 if (Config::get('system', 'local_tags')) {
1813 $item["body"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1814 "#[url=".System::baseUrl()."/search?tag=$2]$2[/url]", $item["body"]);
1816 $item["tag"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1817 "#[url=".System::baseUrl()."/search?tag=$2]$2[/url]", $item["tag"]);
1820 // mask hashtags inside of url, bookmarks and attachments to avoid urls in urls
1821 $item["body"] = preg_replace_callback("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1823 return ("[url=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/url]");
1826 $item["body"] = preg_replace_callback("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism",
1828 return ("[bookmark=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/bookmark]");
1831 $item["body"] = preg_replace_callback("/\[attachment (.*)\](.*?)\[\/attachment\]/ism",
1833 return ("[attachment " . str_replace("#", "#", $match[1]) . "]" . $match[2] . "[/attachment]");
1836 // Repair recursive urls
1837 $item["body"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1838 "#$2", $item["body"]);
1840 foreach ($tags as $tag) {
1841 if ((strpos($tag, '#') !== 0) || strpos($tag, '[url=')) {
1845 $basetag = str_replace('_',' ',substr($tag,1));
1847 $newtag = '#[url=' . System::baseUrl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
1849 $item["body"] = str_replace($tag, $newtag, $item["body"]);
1851 if (!stristr($item["tag"], "/search?tag=" . $basetag . "]" . $basetag . "[/url]")) {
1852 if (strlen($item["tag"])) {
1853 $item["tag"] = ','.$item["tag"];
1855 $item["tag"] = $newtag.$item["tag"];
1859 // Convert back the masked hashtags
1860 $item["body"] = str_replace("#", "#", $item["body"]);
1863 public static function getGuidById($id)
1865 $item = dba::selectFirst('item', ['guid'], ['id' => $id]);
1866 if (DBM::is_result($item)) {
1867 return $item['guid'];
1873 public static function getIdAndNickByGuid($guid, $uid = 0)
1879 $uid == local_user();
1882 // Does the given user have this item?
1884 $item = dba::fetch_first("SELECT `item`.`id`, `user`.`nickname` FROM `item`
1885 INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
1886 WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
1887 AND `item`.`guid` = ? AND `item`.`uid` = ?", $guid, $uid);
1888 if (DBM::is_result($item)) {
1890 $nick = $item["nickname"];
1894 // Or is it anywhere on the server?
1896 $item = dba::fetch_first("SELECT `item`.`id`, `user`.`nickname` FROM `item`
1897 INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
1898 WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
1899 AND `item`.`allow_cid` = '' AND `item`.`allow_gid` = ''
1900 AND `item`.`deny_cid` = '' AND `item`.`deny_gid` = ''
1901 AND NOT `item`.`private` AND `item`.`wall`
1902 AND `item`.`guid` = ?", $guid);
1903 if (DBM::is_result($item)) {
1905 $nick = $item["nickname"];
1908 return ["nick" => $nick, "id" => $id];
1912 * look for mention tags and setup a second delivery chain for forum/community posts if appropriate
1914 * @param int $item_id
1915 * @return bool true if item was deleted, else false
1917 private static function tagDeliver($uid, $item_id)
1921 $user = dba::selectFirst('user', [], ['uid' => $uid]);
1922 if (!DBM::is_result($user)) {
1926 $community_page = (($user['page-flags'] == PAGE_COMMUNITY) ? true : false);
1927 $prvgroup = (($user['page-flags'] == PAGE_PRVGROUP) ? true : false);
1929 $item = dba::selectFirst('item', [], ['id' => $item_id]);
1930 if (!DBM::is_result($item)) {
1934 $link = normalise_link(System::baseUrl() . '/profile/' . $user['nickname']);
1937 * Diaspora uses their own hardwired link URL in @-tags
1938 * instead of the one we supply with webfinger
1940 $dlink = normalise_link(System::baseUrl() . '/u/' . $user['nickname']);
1942 $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism', $item['body'], $matches, PREG_SET_ORDER);
1944 foreach ($matches as $mtch) {
1945 if (link_compare($link, $mtch[1]) || link_compare($dlink, $mtch[1])) {
1947 logger('mention found: ' . $mtch[2]);
1953 if (($community_page || $prvgroup) &&
1954 !$item['wall'] && !$item['origin'] && ($item['id'] == $item['parent'])) {
1955 // mmh.. no mention.. community page or private group... no wall.. no origin.. top-post (not a comment)
1957 logger("no-mention top-level post to community or private group. delete.");
1958 dba::delete('item', ['id' => $item_id]);
1964 $arr = ['item' => $item, 'user' => $user];
1966 Addon::callHooks('tagged', $arr);
1968 if (!$community_page && !$prvgroup) {
1973 * tgroup delivery - setup a second delivery chain
1974 * prevent delivery looping - only proceed
1975 * if the message originated elsewhere and is a top-level post
1977 if ($item['wall'] || $item['origin'] || ($item['id'] != $item['parent'])) {
1981 // now change this copy of the post to a forum head message and deliver to all the tgroup members
1982 $self = dba::selectFirst('contact', ['id', 'name', 'url', 'thumb'], ['uid' => $uid, 'self' => true]);
1983 if (!DBM::is_result($self)) {
1987 $owner_id = Contact::getIdForURL($self['url']);
1989 // also reset all the privacy bits to the forum default permissions
1991 $private = ($user['allow_cid'] || $user['allow_gid'] || $user['deny_cid'] || $user['deny_gid']) ? 1 : 0;
1993 $forum_mode = ($prvgroup ? 2 : 1);
1995 $fields = ['wall' => true, 'origin' => true, 'forum_mode' => $forum_mode, 'contact-id' => $self['id'],
1996 'owner-id' => $owner_id, 'owner-link' => $self['url'], 'private' => $private, 'allow_cid' => $user['allow_cid'],
1997 'allow_gid' => $user['allow_gid'], 'deny_cid' => $user['deny_cid'], 'deny_gid' => $user['deny_gid']];
1998 dba::update('item', $fields, ['id' => $item_id]);
2000 self::updateThread($item_id);
2002 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], 'Notifier', 'tgroup', $item_id);
2005 public static function isRemoteSelf($contact, &$datarray)
2009 if (!$contact['remote_self']) {
2013 // Prevent the forwarding of posts that are forwarded
2014 if ($datarray["extid"] == NETWORK_DFRN) {
2015 logger('Already forwarded', LOGGER_DEBUG);
2019 // Prevent to forward already forwarded posts
2020 if ($datarray["app"] == $a->get_hostname()) {
2021 logger('Already forwarded (second test)', LOGGER_DEBUG);
2025 // Only forward posts
2026 if ($datarray["verb"] != ACTIVITY_POST) {
2027 logger('No post', LOGGER_DEBUG);
2031 if (($contact['network'] != NETWORK_FEED) && $datarray['private']) {
2032 logger('Not public', LOGGER_DEBUG);
2036 $datarray2 = $datarray;
2037 logger('remote-self start - Contact '.$contact['url'].' - '.$contact['remote_self'].' Item '.print_r($datarray, true), LOGGER_DEBUG);
2038 if ($contact['remote_self'] == 2) {
2039 $self = dba::selectFirst('contact', ['id', 'name', 'url', 'thumb'],
2040 ['uid' => $contact['uid'], 'self' => true]);
2041 if (DBM::is_result($self)) {
2042 $datarray['contact-id'] = $self["id"];
2044 $datarray['owner-name'] = $self["name"];
2045 $datarray['owner-link'] = $self["url"];
2046 $datarray['owner-avatar'] = $self["thumb"];
2048 $datarray['author-name'] = $datarray['owner-name'];
2049 $datarray['author-link'] = $datarray['owner-link'];
2050 $datarray['author-avatar'] = $datarray['owner-avatar'];
2052 unset($datarray['created']);
2053 unset($datarray['edited']);
2055 unset($datarray['network']);
2056 unset($datarray['owner-id']);
2057 unset($datarray['author-id']);
2060 if ($contact['network'] != NETWORK_FEED) {
2061 $datarray["guid"] = get_guid(32);
2062 unset($datarray["plink"]);
2063 $datarray["uri"] = self::newURI($contact['uid'], $datarray["guid"]);
2064 $datarray["parent-uri"] = $datarray["uri"];
2065 $datarray["thr-parent"] = $datarray["uri"];
2066 $datarray["extid"] = NETWORK_DFRN;
2067 $urlpart = parse_url($datarray2['author-link']);
2068 $datarray["app"] = $urlpart["host"];
2070 $datarray['private'] = 0;
2074 if ($contact['network'] != NETWORK_FEED) {
2075 // Store the original post
2076 $result = self::insert($datarray2, false, false);
2077 logger('remote-self post original item - Contact '.$contact['url'].' return '.$result.' Item '.print_r($datarray2, true), LOGGER_DEBUG);
2079 $datarray["app"] = "Feed";
2083 // Trigger automatic reactions for addons
2084 $datarray['api_source'] = true;
2086 // We have to tell the hooks who we are - this really should be improved
2087 $_SESSION["authenticated"] = true;
2088 $_SESSION["uid"] = $contact['uid'];
2097 * @param array $item
2101 public static function fixPrivatePhotos($s, $uid, $item = null, $cid = 0)
2103 if (Config::get('system', 'disable_embedded')) {
2107 logger('check for photos', LOGGER_DEBUG);
2108 $site = substr(System::baseUrl(), strpos(System::baseUrl(), '://'));
2113 $img_start = strpos($orig_body, '[img');
2114 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
2115 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
2117 while (($img_st_close !== false) && ($img_len !== false)) {
2118 $img_st_close++; // make it point to AFTER the closing bracket
2119 $image = substr($orig_body, $img_start + $img_st_close, $img_len);
2121 logger('found photo ' . $image, LOGGER_DEBUG);
2123 if (stristr($image, $site . '/photo/')) {
2124 // Only embed locally hosted photos
2126 $i = basename($image);
2127 $i = str_replace(['.jpg', '.png', '.gif'], ['', '', ''], $i);
2128 $x = strpos($i, '-');
2131 $res = substr($i, $x + 1);
2132 $i = substr($i, 0, $x);
2133 $fields = ['data', 'type', 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid'];
2134 $photo = dba::selectFirst('photo', $fields, ['resource-id' => $i, 'scale' => $res, 'uid' => $uid]);
2135 if (DBM::is_result($photo)) {
2137 * Check to see if we should replace this photo link with an embedded image
2138 * 1. No need to do so if the photo is public
2139 * 2. If there's a contact-id provided, see if they're in the access list
2140 * for the photo. If so, embed it.
2141 * 3. Otherwise, if we have an item, see if the item permissions match the photo
2142 * permissions, regardless of order but first check to see if they're an exact
2143 * match to save some processing overhead.
2145 if (self::hasPermissions($photo)) {
2147 $recips = self::enumeratePermissions($photo);
2148 if (in_array($cid, $recips)) {
2152 if (self::samePermissions($item, $photo)) {
2158 $data = $photo['data'];
2159 $type = $photo['type'];
2161 // If a custom width and height were specified, apply before embedding
2162 if (preg_match("/\[img\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
2163 logger('scaling photo', LOGGER_DEBUG);
2165 $width = intval($match[1]);
2166 $height = intval($match[2]);
2168 $Image = new Image($data, $type);
2169 if ($Image->isValid()) {
2170 $Image->scaleDown(max($width, $height));
2171 $data = $Image->asString();
2172 $type = $Image->getType();
2176 logger('replacing photo', LOGGER_DEBUG);
2177 $image = 'data:' . $type . ';base64,' . base64_encode($data);
2178 logger('replaced: ' . $image, LOGGER_DATA);
2184 $new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/img]';
2185 $orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/img]'));
2186 if ($orig_body === false) {
2190 $img_start = strpos($orig_body, '[img');
2191 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
2192 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
2195 $new_body = $new_body . $orig_body;
2200 private static function hasPermissions($obj)
2204 x($obj, 'allow_cid')
2206 x($obj, 'allow_gid')
2215 private static function samePermissions($obj1, $obj2)
2217 // first part is easy. Check that these are exactly the same.
2218 if (($obj1['allow_cid'] == $obj2['allow_cid'])
2219 && ($obj1['allow_gid'] == $obj2['allow_gid'])
2220 && ($obj1['deny_cid'] == $obj2['deny_cid'])
2221 && ($obj1['deny_gid'] == $obj2['deny_gid'])) {
2225 // This is harder. Parse all the permissions and compare the resulting set.
2226 $recipients1 = self::enumeratePermissions($obj1);
2227 $recipients2 = self::enumeratePermissions($obj2);
2231 /// @TODO Comparison of arrays, maybe use array_diff_assoc() here?
2232 return ($recipients1 == $recipients2);
2235 // returns an array of contact-ids that are allowed to see this object
2236 private static function enumeratePermissions($obj)
2238 $allow_people = expand_acl($obj['allow_cid']);
2239 $allow_groups = Group::expand(expand_acl($obj['allow_gid']));
2240 $deny_people = expand_acl($obj['deny_cid']);
2241 $deny_groups = Group::expand(expand_acl($obj['deny_gid']));
2242 $recipients = array_unique(array_merge($allow_people, $allow_groups));
2243 $deny = array_unique(array_merge($deny_people, $deny_groups));
2244 $recipients = array_diff($recipients, $deny);
2248 public static function getFeedTags($item)
2252 $cnt = preg_match_all('|\#\[url\=(.*?)\](.*?)\[\/url\]|', $item['tag'], $matches);
2254 for ($x = 0; $x < $cnt; $x ++) {
2255 if ($matches[1][$x]) {
2256 $ret[$matches[2][$x]] = ['#', $matches[1][$x], $matches[2][$x]];
2261 $cnt = preg_match_all('|\@\[url\=(.*?)\](.*?)\[\/url\]|', $item['tag'], $matches);
2263 for ($x = 0; $x < $cnt; $x ++) {
2264 if ($matches[1][$x]) {
2265 $ret[] = ['@', $matches[1][$x], $matches[2][$x]];
2272 public static function expire($uid, $days, $network = "", $force = false)
2274 if (!$uid || ($days < 1)) {
2279 * $expire_network_only = save your own wall posts
2280 * and just expire conversations started by others
2282 $expire_network_only = PConfig::get($uid,'expire', 'network_only');
2283 $sql_extra = (intval($expire_network_only) ? " AND wall = 0 " : "");
2285 if ($network != "") {
2286 $sql_extra .= sprintf(" AND network = '%s' ", dbesc($network));
2289 * There is an index "uid_network_received" but not "uid_network_created"
2290 * This avoids the creation of another index just for one purpose.
2291 * And it doesn't really matter wether to look at "received" or "created"
2293 $range = "AND `received` < UTC_TIMESTAMP() - INTERVAL %d DAY ";
2295 $range = "AND `created` < UTC_TIMESTAMP() - INTERVAL %d DAY ";
2298 $r = q("SELECT `file`, `resource-id`, `starred`, `type`, `id` FROM `item`
2299 WHERE `uid` = %d $range
2307 if (!DBM::is_result($r)) {
2311 $expire_items = PConfig::get($uid, 'expire', 'items', 1);
2313 // Forcing expiring of items - but not notes and marked items
2315 $expire_items = true;
2318 $expire_notes = PConfig::get($uid, 'expire', 'notes', 1);
2319 $expire_starred = PConfig::get($uid, 'expire', 'starred', 1);
2320 $expire_photos = PConfig::get($uid, 'expire', 'photos', 0);
2322 logger('User '.$uid.': expire: # items=' . count($r). "; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
2324 foreach ($r as $item) {
2326 // don't expire filed items
2328 if (strpos($item['file'],'[') !== false) {
2332 // Only expire posts, not photos and photo comments
2334 if ($expire_photos == 0 && strlen($item['resource-id'])) {
2336 } elseif ($expire_starred == 0 && intval($item['starred'])) {
2338 } elseif ($expire_notes == 0 && $item['type'] == 'note') {
2340 } elseif ($expire_items == 0 && $item['type'] != 'note') {
2344 self::deleteById($item['id'], PRIORITY_LOW);
2348 public static function firstPostDate($uid, $wall = false)
2350 $condition = ['uid' => $uid, 'wall' => $wall, 'deleted' => false, 'visible' => true, 'moderated' => false];
2351 $params = ['order' => ['created' => false]];
2352 $thread = dba::selectFirst('thread', ['created'], $condition, $params);
2353 if (DBM::is_result($thread)) {
2354 return substr(DateTimeFormat::local($thread['created']), 0, 10);
2360 * @brief add/remove activity to an item
2362 * Toggle activities as like,dislike,attend of an item
2364 * @param string $item_id
2365 * @param string $verb
2366 * Activity verb. One of
2367 * like, unlike, dislike, undislike, attendyes, unattendyes,
2368 * attendno, unattendno, attendmaybe, unattendmaybe
2369 * @hook 'post_local_end'
2371 * 'post_id' => ID of posted item
2373 public static function performLike($item_id, $verb)
2375 if (!local_user() && !remote_user()) {
2382 $bodyverb = L10n::t('%1$s likes %2$s\'s %3$s');
2383 $activity = ACTIVITY_LIKE;
2387 $bodyverb = L10n::t('%1$s doesn\'t like %2$s\'s %3$s');
2388 $activity = ACTIVITY_DISLIKE;
2392 $bodyverb = L10n::t('%1$s is attending %2$s\'s %3$s');
2393 $activity = ACTIVITY_ATTEND;
2397 $bodyverb = L10n::t('%1$s is not attending %2$s\'s %3$s');
2398 $activity = ACTIVITY_ATTENDNO;
2401 case 'unattendmaybe':
2402 $bodyverb = L10n::t('%1$s may attend %2$s\'s %3$s');
2403 $activity = ACTIVITY_ATTENDMAYBE;
2406 logger('like: unknown verb ' . $verb . ' for item ' . $item_id);
2410 // Enable activity toggling instead of on/off
2411 $event_verb_flag = $activity === ACTIVITY_ATTEND || $activity === ACTIVITY_ATTENDNO || $activity === ACTIVITY_ATTENDMAYBE;
2413 logger('like: verb ' . $verb . ' item ' . $item_id);
2415 $item = dba::selectFirst('item', [], ['`id` = ? OR `uri` = ?', $item_id, $item_id]);
2416 if (!DBM::is_result($item)) {
2417 logger('like: unknown item ' . $item_id);
2421 $uid = $item['uid'];
2422 if (($uid == 0) && local_user()) {
2423 $uid = local_user();
2426 if (!can_write_wall($uid)) {
2427 logger('like: unable to write on wall ' . $uid);
2431 // Retrieves the local post owner
2432 $owner_self_contact = dba::selectFirst('contact', [], ['uid' => $uid, 'self' => true]);
2433 if (!DBM::is_result($owner_self_contact)) {
2434 logger('like: unknown owner ' . $uid);
2438 // Retrieve the current logged in user's public contact
2439 $author_id = public_contact();
2441 $author_contact = dba::selectFirst('contact', [], ['id' => $author_id]);
2442 if (!DBM::is_result($author_contact)) {
2443 logger('like: unknown author ' . $author_id);
2447 // Contact-id is the uid-dependant author contact
2448 if (local_user() == $uid) {
2449 $item_contact_id = $owner_self_contact['id'];
2450 $item_contact = $owner_self_contact;
2452 $item_contact_id = Contact::getIdForURL($author_contact['url'], $uid, true);
2453 $item_contact = dba::selectFirst('contact', [], ['id' => $item_contact_id]);
2454 if (!DBM::is_result($item_contact)) {
2455 logger('like: unknown item contact ' . $item_contact_id);
2460 // Look for an existing verb row
2461 // event participation are essentially radio toggles. If you make a subsequent choice,
2462 // we need to eradicate your first choice.
2463 if ($event_verb_flag) {
2464 $verbs = "'" . dbesc(ACTIVITY_ATTEND) . "', '" . dbesc(ACTIVITY_ATTENDNO) . "', '" . dbesc(ACTIVITY_ATTENDMAYBE) . "'";
2466 $verbs = "'".dbesc($activity)."'";
2469 /// @todo This query is expected to be a performance eater due to the "OR" - it has to be changed totally
2470 $existing_like = q("SELECT `id`, `guid`, `verb` FROM `item`
2471 WHERE `verb` IN ($verbs)
2473 AND `author-id` = %d
2475 AND (`parent` = '%s' OR `parent-uri` = '%s' OR `thr-parent` = '%s')
2477 intval($author_contact['id']),
2478 intval($item['uid']),
2479 dbesc($item_id), dbesc($item_id), dbesc($item['uri'])
2482 // If it exists, mark it as deleted
2483 if (DBM::is_result($existing_like)) {
2484 $like_item = $existing_like[0];
2486 // Already voted, undo it
2487 $fields = ['deleted' => true, 'unseen' => true, 'changed' => DateTimeFormat::utcNow()];
2488 dba::update('item', $fields, ['id' => $like_item['id']]);
2490 // Clean up the Diaspora signatures for this like
2491 // Go ahead and do it even if Diaspora support is disabled. We still want to clean up
2492 // if it had been enabled in the past
2493 dba::delete('sign', ['iid' => $like_item['id']]);
2495 $like_item_id = $like_item['id'];
2496 Worker::add(PRIORITY_HIGH, "Notifier", "like", $like_item_id);
2498 if (!$event_verb_flag || $like_item['verb'] == $activity) {
2503 // Verb is "un-something", just trying to delete existing entries
2504 if (strpos($verb, 'un') === 0) {
2508 // Else or if event verb different from existing row, create a new item row
2509 $post_type = (($item['resource-id']) ? L10n::t('photo') : L10n::t('status'));
2510 if ($item['object-type'] === ACTIVITY_OBJ_EVENT) {
2511 $post_type = L10n::t('event');
2513 $objtype = $item['resource-id'] ? ACTIVITY_OBJ_IMAGE : ACTIVITY_OBJ_NOTE ;
2514 $link = xmlify('<link rel="alternate" type="text/html" href="' . System::baseUrl() . '/display/' . $owner_self_contact['nick'] . '/' . $item['id'] . '" />' . "\n") ;
2515 $body = $item['body'];
2520 <type>$objtype</type>
2522 <id>{$item['uri']}</id>
2525 <content>$body</content>
2529 $ulink = '[url=' . $author_contact['url'] . ']' . $author_contact['name'] . '[/url]';
2530 $alink = '[url=' . $item['author-link'] . ']' . $item['author-name'] . '[/url]';
2531 $plink = '[url=' . System::baseUrl() . '/display/' . $owner_self_contact['nick'] . '/' . $item['id'] . ']' . $post_type . '[/url]';
2534 'guid' => get_guid(32),
2535 'uri' => self::newURI($item['uid']),
2536 'uid' => $item['uid'],
2537 'contact-id' => $item_contact_id,
2538 'type' => 'activity',
2539 'wall' => $item['wall'],
2541 'gravity' => GRAVITY_LIKE,
2542 'parent' => $item['id'],
2543 'parent-uri' => $item['uri'],
2544 'thr-parent' => $item['uri'],
2545 'owner-id' => $item['owner-id'],
2546 'owner-name' => $item['owner-name'],
2547 'owner-link' => $item['owner-link'],
2548 'owner-avatar' => $item['owner-avatar'],
2549 'author-id' => $author_contact['id'],
2550 'author-name' => $author_contact['name'],
2551 'author-link' => $author_contact['url'],
2552 'author-avatar' => $author_contact['thumb'],
2553 'body' => sprintf($bodyverb, $ulink, $alink, $plink),
2554 'verb' => $activity,
2555 'object-type' => $objtype,
2557 'allow_cid' => $item['allow_cid'],
2558 'allow_gid' => $item['allow_gid'],
2559 'deny_cid' => $item['deny_cid'],
2560 'deny_gid' => $item['deny_gid'],
2565 $new_item_id = self::insert($new_item);
2567 // If the parent item isn't visible then set it to visible
2568 if (!$item['visible']) {
2569 self::update(['visible' => true], ['id' => $item['id']]);
2572 // Save the author information for the like in case we need to relay to Diaspora
2573 Diaspora::storeLikeSignature($item_contact, $new_item_id);
2575 $new_item['id'] = $new_item_id;
2577 Addon::callHooks('post_local_end', $new_item);
2579 Worker::add(PRIORITY_HIGH, "Notifier", "like", $new_item_id);
2584 private static function addThread($itemid, $onlyshadow = false)
2586 $fields = ['uid', 'created', 'edited', 'commented', 'received', 'changed', 'wall', 'private', 'pubmail',
2587 'moderated', 'visible', 'starred', 'bookmark', 'contact-id',
2588 'deleted', 'origin', 'forum_mode', 'mention', 'network', 'author-id', 'owner-id'];
2589 $condition = ["`id` = ? AND (`parent` = ? OR `parent` = 0)", $itemid, $itemid];
2590 $item = dba::selectFirst('item', $fields, $condition);
2592 if (!DBM::is_result($item)) {
2596 $item['iid'] = $itemid;
2599 $result = dba::insert('thread', $item);
2601 logger("Add thread for item ".$itemid." - ".print_r($result, true), LOGGER_DEBUG);
2605 private static function updateThread($itemid, $setmention = false)
2607 $fields = ['uid', 'guid', 'title', 'body', 'created', 'edited', 'commented', 'received', 'changed',
2608 'wall', 'private', 'pubmail', 'moderated', 'visible', 'starred', 'bookmark', 'contact-id',
2609 'deleted', 'origin', 'forum_mode', 'network', 'author-id', 'owner-id', 'rendered-html', 'rendered-hash'];
2610 $condition = ["`id` = ? AND (`parent` = ? OR `parent` = 0)", $itemid, $itemid];
2612 $item = dba::selectFirst('item', $fields, $condition);
2613 if (!DBM::is_result($item)) {
2618 $item["mention"] = 1;
2625 foreach ($item as $field => $data) {
2626 if (!in_array($field, ["guid", "title", "body", "rendered-html", "rendered-hash"])) {
2627 $fields[$field] = $data;
2631 $result = dba::update('thread', $fields, ['iid' => $itemid]);
2633 logger("Update thread for item ".$itemid." - guid ".$item["guid"]." - ".(int)$result, LOGGER_DEBUG);
2635 // Updating a shadow item entry
2636 $items = dba::selectFirst('item', ['id'], ['guid' => $item['guid'], 'uid' => 0]);
2638 if (!DBM::is_result($items)) {
2642 $fields = ['title' => $item['title'], 'body' => $item['body'],
2643 'rendered-html' => $item['rendered-html'], 'rendered-hash' => $item['rendered-hash']];
2644 $result = dba::update('item', $fields, ['id' => $items['id']]);
2646 logger("Updating public shadow for post ".$items["id"]." - guid ".$item["guid"]." Result: ".print_r($result, true), LOGGER_DEBUG);
2649 private static function deleteThread($itemid, $itemuri = "")
2651 $item = dba::selectFirst('thread', ['uid'], ['iid' => $itemid]);
2652 if (!DBM::is_result($item)) {
2653 logger('No thread found for id '.$itemid, LOGGER_DEBUG);
2657 // Using dba::delete at this time could delete the associated item entries
2658 $result = dba::e("DELETE FROM `thread` WHERE `iid` = ?", $itemid);
2660 logger("deleteThread: Deleted thread for item ".$itemid." - ".print_r($result, true), LOGGER_DEBUG);
2662 if ($itemuri != "") {
2663 $condition = ["`uri` = ? AND NOT `deleted` AND NOT (`uid` IN (?, 0))", $itemuri, $item["uid"]];
2664 if (!dba::exists('item', $condition)) {
2665 dba::delete('item', ['uri' => $itemuri, 'uid' => 0]);
2666 logger("deleteThread: Deleted shadow for item ".$itemuri, LOGGER_DEBUG);