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 $field) {
75 if (isset($row[$field]) && !empty($row['item-content-' . $field])) {
76 $row[$field] = $row['item-content-' . $field];
77 unset($row['item-content-' . $field]);
81 // We prefer the data from the user's contact over the public one
82 if (!empty($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',
367 'title', 'body', 'app', 'verb', 'object-type', 'object', 'target-type', 'target',
368 'postopts', 'plink', 'resource-id', 'event-id', 'tag', 'attach', 'inform',
369 'file', 'location', 'coord', 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
370 'private', 'pubmail', 'moderated', 'visible', 'starred', 'bookmark',
371 'unseen', 'deleted', 'origin', 'forum_mode', 'mention',
372 'rendered-hash', 'rendered-html', 'global', 'content-warning',
373 'id' => 'item_id', 'network'];
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 $joins .= " LEFT JOIN `item-content` ON `item-content`.`uri` = `item`.`uri`";
468 if ((strpos($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 $selection[] = "`item-content`.`".$select."` AS `item-content-" . $select . "`";
496 if (is_int($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 $success = dba::update('item', $fields, $condition);
568 $rows = dba::affected_rows();
570 while ($item = dba::fetch($items)) {
571 self::updateContent($fields, ['uri' => $item['uri']]);
572 Term::insertFromTagFieldByItemId($item['id']);
573 Term::insertFromFileFieldByItemId($item['id']);
574 self::updateThread($item['id']);
576 // We only need to notfiy others when it is an original entry from us.
577 // Only call the notifier when the item has some content relevant change.
578 if ($item['origin'] && in_array('edited', array_keys($fields))) {
579 Worker::add(PRIORITY_HIGH, "Notifier", 'edit_post', $item['id']);
589 * @brief Delete an item and notify others about it - if it was ours
591 * @param array $condition The condition for finding the item entries
592 * @param integer $priority Priority for the notification
594 public static function delete($condition, $priority = PRIORITY_HIGH)
596 $items = dba::select('item', ['id'], $condition);
597 while ($item = dba::fetch($items)) {
598 self::deleteById($item['id'], $priority);
604 * @brief Delete an item for an user and notify others about it - if it was ours
606 * @param array $condition The condition for finding the item entries
607 * @param integer $uid User who wants to delete this item
609 public static function deleteForUser($condition, $uid)
615 $items = dba::select('item', ['id', 'uid'], $condition);
616 while ($item = dba::fetch($items)) {
617 // "Deleting" global items just means hiding them
618 if ($item['uid'] == 0) {
619 dba::update('user-item', ['hidden' => true], ['iid' => $item['id'], 'uid' => $uid], true);
620 } elseif ($item['uid'] == $uid) {
621 self::deleteById($item['id'], PRIORITY_HIGH);
623 logger('Wrong ownership. Not deleting item ' . $item['id']);
630 * @brief Delete an item and notify others about it - if it was ours
632 * @param integer $item_id Item ID that should be delete
633 * @param integer $priority Priority for the notification
635 * @return boolean success
637 private static function deleteById($item_id, $priority = PRIORITY_HIGH)
639 // locate item to be deleted
640 $fields = ['id', 'uri', 'uid', 'parent', 'parent-uri', 'origin',
641 'deleted', 'file', 'resource-id', 'event-id', 'attach',
642 'verb', 'object-type', 'object', 'target', 'contact-id'];
643 $item = dba::selectFirst('item', $fields, ['id' => $item_id]);
644 if (!DBM::is_result($item)) {
645 logger('Item with ID ' . $item_id . " hasn't been found.", LOGGER_DEBUG);
649 if ($item['deleted']) {
650 logger('Item with ID ' . $item_id . ' has already been deleted.', LOGGER_DEBUG);
654 $parent = dba::selectFirst('item', ['origin'], ['id' => $item['parent']]);
655 if (!DBM::is_result($parent)) {
656 $parent = ['origin' => false];
659 // clean up categories and tags so they don't end up as orphans
662 $cnt = preg_match_all('/<(.*?)>/', $item['file'], $matches, PREG_SET_ORDER);
664 foreach ($matches as $mtch) {
665 file_tag_unsave_file($item['uid'], $item['id'], $mtch[1],true);
671 $cnt = preg_match_all('/\[(.*?)\]/', $item['file'], $matches, PREG_SET_ORDER);
673 foreach ($matches as $mtch) {
674 file_tag_unsave_file($item['uid'], $item['id'], $mtch[1],false);
679 * If item is a link to a photo resource, nuke all the associated photos
680 * (visitors will not have photo resources)
681 * This only applies to photos uploaded from the photos page. Photos inserted into a post do not
682 * generate a resource-id and therefore aren't intimately linked to the item.
684 if (strlen($item['resource-id'])) {
685 dba::delete('photo', ['resource-id' => $item['resource-id'], 'uid' => $item['uid']]);
688 // If item is a link to an event, delete the event.
689 if (intval($item['event-id'])) {
690 Event::delete($item['event-id']);
693 // If item has attachments, drop them
694 foreach (explode(", ", $item['attach']) as $attach) {
695 preg_match("|attach/(\d+)|", $attach, $matches);
696 dba::delete('attach', ['id' => $matches[1], 'uid' => $item['uid']]);
699 // Delete tags that had been attached to other items
700 self::deleteTagsFromItem($item);
702 // Set the item to "deleted"
703 dba::update('item', ['deleted' => true, 'title' => '', 'body' => '',
704 'edited' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()],
705 ['id' => $item['id']]);
707 Term::insertFromTagFieldByItemId($item['id']);
708 Term::insertFromFileFieldByItemId($item['id']);
709 self::deleteThread($item['id'], $item['parent-uri']);
711 if (!dba::exists('item', ["`uri` = ? AND `uid` != 0 AND NOT `deleted`", $item['uri']])) {
712 self::delete(['uri' => $item['uri'], 'uid' => 0, 'deleted' => false], $priority);
715 // If it's the parent of a comment thread, kill all the kids
716 if ($item['id'] == $item['parent']) {
717 self::delete(['parent' => $item['parent'], 'deleted' => false], $priority);
720 // Is it our comment and/or our thread?
721 if ($item['origin'] || $parent['origin']) {
723 // When we delete the original post we will delete all existing copies on the server as well
724 self::delete(['uri' => $item['uri'], 'deleted' => false], $priority);
726 // send the notification upstream/downstream
727 Worker::add(['priority' => $priority, 'dont_fork' => true], "Notifier", "drop", intval($item['id']));
728 } elseif ($item['uid'] != 0) {
730 // When we delete just our local user copy of an item, we have to set a marker to hide it
731 $global_item = dba::selectFirst('item', ['id'], ['uri' => $item['uri'], 'uid' => 0, 'deleted' => false]);
732 if (DBM::is_result($global_item)) {
733 dba::update('user-item', ['hidden' => true], ['iid' => $global_item['id'], 'uid' => $item['uid']], true);
737 logger('Item with ID ' . $item_id . " has been deleted.", LOGGER_DEBUG);
742 private static function deleteTagsFromItem($item)
744 if (($item["verb"] != ACTIVITY_TAG) || ($item["object-type"] != ACTIVITY_OBJ_TAGTERM)) {
748 $xo = XML::parseString($item["object"], false);
749 $xt = XML::parseString($item["target"], false);
751 if ($xt->type != ACTIVITY_OBJ_NOTE) {
755 $i = dba::selectFirst('item', ['id', 'contact-id', 'tag'], ['uri' => $xt->id, 'uid' => $item['uid']]);
756 if (!DBM::is_result($i)) {
760 // For tags, the owner cannot remove the tag on the author's copy of the post.
761 $owner_remove = ($item["contact-id"] == $i["contact-id"]);
762 $author_copy = $item["origin"];
764 if (($owner_remove && $author_copy) || !$owner_remove) {
768 $tags = explode(',', $i["tag"]);
771 foreach ($tags as $tag) {
772 if (trim($tag) !== trim($xo->body)) {
773 $newtags[] = trim($tag);
777 self::update(['tag' => implode(',', $newtags)], ['id' => $i["id"]]);
780 private static function guid($item, $notify)
782 $guid = notags(trim($item['guid']));
789 // We have to avoid duplicates. So we create the GUID in form of a hash of the plink or uri.
790 // We add the hash of our own host because our host is the original creator of the post.
791 $prefix_host = get_app()->get_hostname();
795 // We are only storing the post so we create a GUID from the original hostname.
796 if (!empty($item['author-link'])) {
797 $parsed = parse_url($item['author-link']);
798 if (!empty($parsed['host'])) {
799 $prefix_host = $parsed['host'];
803 if (empty($prefix_host) && !empty($item['plink'])) {
804 $parsed = parse_url($item['plink']);
805 if (!empty($parsed['host'])) {
806 $prefix_host = $parsed['host'];
810 if (empty($prefix_host) && !empty($item['uri'])) {
811 $parsed = parse_url($item['uri']);
812 if (!empty($parsed['host'])) {
813 $prefix_host = $parsed['host'];
817 // Is it in the format data@host.tld? - Used for mail contacts
818 if (empty($prefix_host) && !empty($item['author-link']) && strstr($item['author-link'], '@')) {
819 $mailparts = explode('@', $item['author-link']);
820 $prefix_host = array_pop($mailparts);
824 if (!empty($item['plink'])) {
825 $guid = self::guidFromUri($item['plink'], $prefix_host);
826 } elseif (!empty($item['uri'])) {
827 $guid = self::guidFromUri($item['uri'], $prefix_host);
829 $guid = get_guid(32, hash('crc32', $prefix_host));
835 private static function contactId($item)
837 $contact_id = (int)$item["contact-id"];
839 if (!empty($contact_id)) {
842 logger('Missing contact-id. Called by: '.System::callstack(), LOGGER_DEBUG);
844 * First we are looking for a suitable contact that matches with the author of the post
845 * This is done only for comments
847 if ($item['parent-uri'] != $item['uri']) {
848 $contact_id = Contact::getIdForURL($item['author-link'], $item['uid']);
851 // If not present then maybe the owner was found
852 if ($contact_id == 0) {
853 $contact_id = Contact::getIdForURL($item['owner-link'], $item['uid']);
856 // Still missing? Then use the "self" contact of the current user
857 if ($contact_id == 0) {
858 $self = dba::selectFirst('contact', ['id'], ['self' => true, 'uid' => $item['uid']]);
859 if (DBM::is_result($self)) {
860 $contact_id = $self["id"];
863 logger("Contact-id was missing for post ".$item['guid']." from user id ".$item['uid']." - now set to ".$contact_id, LOGGER_DEBUG);
868 public static function insert($item, $force_parent = false, $notify = false, $dontcache = false)
872 // If it is a posting where users should get notifications, then define it as wall posting
875 $item['type'] = 'wall';
877 $item['network'] = NETWORK_DFRN;
878 $item['protocol'] = PROTOCOL_DFRN;
880 if (is_int($notify)) {
883 $priority = PRIORITY_HIGH;
886 $item['network'] = trim(defaults($item, 'network', NETWORK_PHANTOM));
889 $item['guid'] = self::guid($item, $notify);
890 $item['uri'] = notags(trim(defaults($item, 'uri', self::newURI($item['uid'], $item['guid']))));
892 // Store conversation data
893 $item = Conversation::insert($item);
896 * If a Diaspora signature structure was passed in, pull it out of the
897 * item array and set it aside for later storage.
901 if (x($item, 'dsprsig')) {
902 $encoded_signature = $item['dsprsig'];
903 $dsprsig = json_decode(base64_decode($item['dsprsig']));
904 unset($item['dsprsig']);
907 if (!empty($item['diaspora_signed_text'])) {
908 $diaspora_signed_text = $item['diaspora_signed_text'];
909 unset($item['diaspora_signed_text']);
911 $diaspora_signed_text = '';
914 // Converting the plink
915 /// @TODO Check if this is really still needed
916 if ($item['network'] == NETWORK_OSTATUS) {
917 if (isset($item['plink'])) {
918 $item['plink'] = OStatus::convertHref($item['plink']);
919 } elseif (isset($item['uri'])) {
920 $item['plink'] = OStatus::convertHref($item['uri']);
924 if (!empty($item['thr-parent'])) {
925 $item['parent-uri'] = $item['thr-parent'];
928 if (x($item, 'gravity')) {
929 $item['gravity'] = intval($item['gravity']);
930 } elseif ($item['parent-uri'] === $item['uri']) {
931 $item['gravity'] = 0;
932 } elseif (activity_match($item['verb'],ACTIVITY_POST)) {
933 $item['gravity'] = 6;
935 $item['gravity'] = 6; // extensible catchall
938 $item['type'] = defaults($item, 'type', 'remote');
940 $uid = intval($item['uid']);
942 // check for create date and expire time
943 $expire_interval = Config::get('system', 'dbclean-expire-days', 0);
945 $user = dba::selectFirst('user', ['expire'], ['uid' => $uid]);
946 if (DBM::is_result($user) && ($user['expire'] > 0) && (($user['expire'] < $expire_interval) || ($expire_interval == 0))) {
947 $expire_interval = $user['expire'];
950 if (($expire_interval > 0) && !empty($item['created'])) {
951 $expire_date = time() - ($expire_interval * 86400);
952 $created_date = strtotime($item['created']);
953 if ($created_date < $expire_date) {
954 logger('item-store: item created ('.date('c', $created_date).') before expiration time ('.date('c', $expire_date).'). ignored. ' . print_r($item,true), LOGGER_DEBUG);
960 * Do we already have this item?
961 * We have to check several networks since Friendica posts could be repeated
962 * via OStatus (maybe Diasporsa as well)
964 if (in_array($item['network'], [NETWORK_DIASPORA, NETWORK_DFRN, NETWORK_OSTATUS, ""])) {
965 $condition = ["`uri` = ? AND `uid` = ? AND `network` IN (?, ?, ?)",
966 trim($item['uri']), $item['uid'],
967 NETWORK_DIASPORA, NETWORK_DFRN, NETWORK_OSTATUS];
968 $existing = dba::selectFirst('item', ['id', 'network'], $condition);
969 if (DBM::is_result($existing)) {
970 // We only log the entries with a different user id than 0. Otherwise we would have too many false positives
972 logger("Item with uri ".$item['uri']." already existed for user ".$uid." with id ".$existing["id"]." target network ".$existing["network"]." - new network: ".$item['network']);
975 return $existing["id"];
979 self::addLanguageInPostopts($item);
981 $item['wall'] = intval(defaults($item, 'wall', 0));
982 $item['extid'] = trim(defaults($item, 'extid', ''));
983 $item['author-name'] = trim(defaults($item, 'author-name', ''));
984 $item['author-link'] = trim(defaults($item, 'author-link', ''));
985 $item['author-avatar'] = trim(defaults($item, 'author-avatar', ''));
986 $item['owner-name'] = trim(defaults($item, 'owner-name', ''));
987 $item['owner-link'] = trim(defaults($item, 'owner-link', ''));
988 $item['owner-avatar'] = trim(defaults($item, 'owner-avatar', ''));
989 $item['received'] = ((x($item, 'received') !== false) ? DateTimeFormat::utc($item['received']) : DateTimeFormat::utcNow());
990 $item['created'] = ((x($item, 'created') !== false) ? DateTimeFormat::utc($item['created']) : $item['received']);
991 $item['edited'] = ((x($item, 'edited') !== false) ? DateTimeFormat::utc($item['edited']) : $item['created']);
992 $item['changed'] = ((x($item, 'changed') !== false) ? DateTimeFormat::utc($item['changed']) : $item['created']);
993 $item['commented'] = ((x($item, 'commented') !== false) ? DateTimeFormat::utc($item['commented']) : $item['created']);
994 $item['title'] = trim(defaults($item, 'title', ''));
995 $item['location'] = trim(defaults($item, 'location', ''));
996 $item['coord'] = trim(defaults($item, 'coord', ''));
997 $item['visible'] = ((x($item, 'visible') !== false) ? intval($item['visible']) : 1);
998 $item['deleted'] = 0;
999 $item['parent-uri'] = trim(defaults($item, 'parent-uri', $item['uri']));
1000 $item['verb'] = trim(defaults($item, 'verb', ''));
1001 $item['object-type'] = trim(defaults($item, 'object-type', ''));
1002 $item['object'] = trim(defaults($item, 'object', ''));
1003 $item['target-type'] = trim(defaults($item, 'target-type', ''));
1004 $item['target'] = trim(defaults($item, 'target', ''));
1005 $item['plink'] = trim(defaults($item, 'plink', ''));
1006 $item['allow_cid'] = trim(defaults($item, 'allow_cid', ''));
1007 $item['allow_gid'] = trim(defaults($item, 'allow_gid', ''));
1008 $item['deny_cid'] = trim(defaults($item, 'deny_cid', ''));
1009 $item['deny_gid'] = trim(defaults($item, 'deny_gid', ''));
1010 $item['private'] = intval(defaults($item, 'private', 0));
1011 $item['bookmark'] = intval(defaults($item, 'bookmark', 0));
1012 $item['body'] = trim(defaults($item, 'body', ''));
1013 $item['tag'] = trim(defaults($item, 'tag', ''));
1014 $item['attach'] = trim(defaults($item, 'attach', ''));
1015 $item['app'] = trim(defaults($item, 'app', ''));
1016 $item['origin'] = intval(defaults($item, 'origin', 0));
1017 $item['postopts'] = trim(defaults($item, 'postopts', ''));
1018 $item['resource-id'] = trim(defaults($item, 'resource-id', ''));
1019 $item['event-id'] = intval(defaults($item, 'event-id', 0));
1020 $item['inform'] = trim(defaults($item, 'inform', ''));
1021 $item['file'] = trim(defaults($item, 'file', ''));
1023 // When there is no content then we don't post it
1024 if ($item['body'].$item['title'] == '') {
1028 // Items cannot be stored before they happen ...
1029 if ($item['created'] > DateTimeFormat::utcNow()) {
1030 $item['created'] = DateTimeFormat::utcNow();
1033 // We haven't invented time travel by now.
1034 if ($item['edited'] > DateTimeFormat::utcNow()) {
1035 $item['edited'] = DateTimeFormat::utcNow();
1038 if (($item['author-link'] == "") && ($item['owner-link'] == "")) {
1039 logger("Both author-link and owner-link are empty. Called by: " . System::callstack(), LOGGER_DEBUG);
1042 $item['plink'] = defaults($item, 'plink', System::baseUrl() . '/display/' . urlencode($item['guid']));
1044 // The contact-id should be set before "self::insert" was called - but there seems to be issues sometimes
1045 $item["contact-id"] = self::contactId($item);
1047 $default = ['url' => $item['author-link'], 'name' => $item['author-name'],
1048 'photo' => $item['author-avatar'], 'network' => $item['network']];
1050 $item['author-id'] = defaults($item, 'author-id', Contact::getIdForURL($item["author-link"], 0, false, $default));
1052 if (Contact::isBlocked($item["author-id"])) {
1053 logger('Contact '.$item["author-id"].' is blocked, item '.$item["uri"].' will not be stored');
1057 $default = ['url' => $item['owner-link'], 'name' => $item['owner-name'],
1058 'photo' => $item['owner-avatar'], 'network' => $item['network']];
1060 $item['owner-id'] = defaults($item, 'owner-id', Contact::getIdForURL($item["owner-link"], 0, false, $default));
1062 if (Contact::isBlocked($item["owner-id"])) {
1063 logger('Contact '.$item["owner-id"].' is blocked, item '.$item["uri"].' will not be stored');
1067 //unset($item['author-link']);
1068 unset($item['author-name']);
1069 unset($item['author-avatar']);
1071 //unset($item['owner-link']);
1072 unset($item['owner-name']);
1073 unset($item['owner-avatar']);
1075 if ($item['network'] == NETWORK_PHANTOM) {
1076 logger('Missing network. Called by: '.System::callstack(), LOGGER_DEBUG);
1078 $contact = Contact::getDetailsByURL($item['author-link'], $item['uid']);
1079 if (!empty($contact['network'])) {
1080 $item['network'] = $contact["network"];
1082 $item['network'] = NETWORK_DFRN;
1084 logger("Set network to " . $item["network"] . " for " . $item["uri"], LOGGER_DEBUG);
1087 // Checking if there is already an item with the same guid
1088 logger('Checking for an item for user '.$item['uid'].' on network '.$item['network'].' with the guid '.$item['guid'], LOGGER_DEBUG);
1089 $condition = ['guid' => $item['guid'], 'network' => $item['network'], 'uid' => $item['uid']];
1090 if (dba::exists('item', $condition)) {
1091 logger('found item with guid '.$item['guid'].' for user '.$item['uid'].' on network '.$item['network'], LOGGER_DEBUG);
1095 // Check for hashtags in the body and repair or add hashtag links
1096 self::setHashtags($item);
1098 $item['thr-parent'] = $item['parent-uri'];
1106 if ($item['parent-uri'] === $item['uri']) {
1108 $parent_deleted = 0;
1109 $allow_cid = $item['allow_cid'];
1110 $allow_gid = $item['allow_gid'];
1111 $deny_cid = $item['deny_cid'];
1112 $deny_gid = $item['deny_gid'];
1113 $notify_type = 'wall-new';
1115 // find the parent and snarf the item id and ACLs
1116 // and anything else we need to inherit
1118 $fields = ['uri', 'parent-uri', 'id', 'deleted',
1119 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
1120 'wall', 'private', 'forum_mode', 'origin'];
1121 $condition = ['uri' => $item['parent-uri'], 'uid' => $item['uid']];
1122 $params = ['order' => ['id' => false]];
1123 $parent = dba::selectFirst('item', $fields, $condition, $params);
1125 if (DBM::is_result($parent)) {
1126 // is the new message multi-level threaded?
1127 // even though we don't support it now, preserve the info
1128 // and re-attach to the conversation parent.
1130 if ($parent['uri'] != $parent['parent-uri']) {
1131 $item['parent-uri'] = $parent['parent-uri'];
1133 $condition = ['uri' => $item['parent-uri'],
1134 'parent-uri' => $item['parent-uri'],
1135 'uid' => $item['uid']];
1136 $params = ['order' => ['id' => false]];
1137 $toplevel_parent = dba::selectFirst('item', $fields, $condition, $params);
1139 if (DBM::is_result($toplevel_parent)) {
1140 $parent = $toplevel_parent;
1144 $parent_id = $parent['id'];
1145 $parent_deleted = $parent['deleted'];
1146 $allow_cid = $parent['allow_cid'];
1147 $allow_gid = $parent['allow_gid'];
1148 $deny_cid = $parent['deny_cid'];
1149 $deny_gid = $parent['deny_gid'];
1150 $item['wall'] = $parent['wall'];
1151 $notify_type = 'comment-new';
1154 * If the parent is private, force privacy for the entire conversation
1155 * This differs from the above settings as it subtly allows comments from
1156 * email correspondents to be private even if the overall thread is not.
1158 if ($parent['private']) {
1159 $item['private'] = $parent['private'];
1163 * Edge case. We host a public forum that was originally posted to privately.
1164 * The original author commented, but as this is a comment, the permissions
1165 * weren't fixed up so it will still show the comment as private unless we fix it here.
1167 if ((intval($parent['forum_mode']) == 1) && $parent['private']) {
1168 $item['private'] = 0;
1171 // If its a post from myself then tag the thread as "mention"
1172 logger("Checking if parent ".$parent_id." has to be tagged as mention for user ".$item['uid'], LOGGER_DEBUG);
1173 $user = dba::selectFirst('user', ['nickname'], ['uid' => $item['uid']]);
1174 if (DBM::is_result($user)) {
1175 $self = normalise_link(System::baseUrl() . '/profile/' . $user['nickname']);
1176 $self_id = Contact::getIdForURL($self, 0, true);
1177 logger("'myself' is ".$self_id." for parent ".$parent_id." checking against ".$item['author-id']." and ".$item['owner-id'], LOGGER_DEBUG);
1178 if (($item['author-id'] == $self_id) || ($item['owner-id'] == $self_id)) {
1179 dba::update('thread', ['mention' => true], ['iid' => $parent_id]);
1180 logger("tagged thread ".$parent_id." as mention for user ".$self, LOGGER_DEBUG);
1185 * Allow one to see reply tweets from status.net even when
1186 * we don't have or can't see the original post.
1188 if ($force_parent) {
1189 logger('$force_parent=true, reply converted to top-level post.');
1191 $item['parent-uri'] = $item['uri'];
1192 $item['gravity'] = 0;
1194 logger('item parent '.$item['parent-uri'].' for '.$item['uid'].' was not found - ignoring item');
1198 $parent_deleted = 0;
1202 $condition = ["`uri` = ? AND `network` IN (?, ?) AND `uid` = ?",
1203 $item['uri'], $item['network'], NETWORK_DFRN, $item['uid']];
1204 if (dba::exists('item', $condition)) {
1205 logger('duplicated item with the same uri found. '.print_r($item,true));
1209 // On Friendica and Diaspora the GUID is unique
1210 if (in_array($item['network'], [NETWORK_DFRN, NETWORK_DIASPORA])) {
1211 $condition = ['guid' => $item['guid'], 'uid' => $item['uid']];
1212 if (dba::exists('item', $condition)) {
1213 logger('duplicated item with the same guid found. '.print_r($item,true));
1217 // Check for an existing post with the same content. There seems to be a problem with OStatus.
1218 $condition = ["`body` = ? AND `network` = ? AND `created` = ? AND `contact-id` = ? AND `uid` = ?",
1219 $item['body'], $item['network'], $item['created'], $item['contact-id'], $item['uid']];
1220 if (dba::exists('item', $condition)) {
1221 logger('duplicated item with the same body found. '.print_r($item,true));
1226 // Is this item available in the global items (with uid=0)?
1227 if ($item["uid"] == 0) {
1228 $item["global"] = true;
1230 // Set the global flag on all items if this was a global item entry
1231 dba::update('item', ['global' => true], ['uri' => $item["uri"]]);
1233 $item["global"] = dba::exists('item', ['uid' => 0, 'uri' => $item["uri"]]);
1237 if (strlen($allow_cid) || strlen($allow_gid) || strlen($deny_cid) || strlen($deny_gid)) {
1240 $private = $item['private'];
1243 $item["allow_cid"] = $allow_cid;
1244 $item["allow_gid"] = $allow_gid;
1245 $item["deny_cid"] = $deny_cid;
1246 $item["deny_gid"] = $deny_gid;
1247 $item["private"] = $private;
1248 $item["deleted"] = $parent_deleted;
1250 // Fill the cache field
1251 put_item_in_cache($item);
1254 Addon::callHooks('post_local', $item);
1256 Addon::callHooks('post_remote', $item);
1259 // This array field is used to trigger some automatic reactions
1260 // It is mainly used in the "post_local" hook.
1261 unset($item['api_source']);
1263 if (x($item, 'cancel')) {
1264 logger('post cancelled by addon.');
1269 * Check for already added items.
1270 * There is a timing issue here that sometimes creates double postings.
1271 * An unique index would help - but the limitations of MySQL (maximum size of index values) prevent this.
1273 if ($item["uid"] == 0) {
1274 if (dba::exists('item', ['uri' => trim($item['uri']), 'uid' => 0])) {
1275 logger('Global item already stored. URI: '.$item['uri'].' on network '.$item['network'], LOGGER_DEBUG);
1280 logger('' . print_r($item,true), LOGGER_DATA);
1283 self::insertContent($item);
1284 $ret = dba::insert('item', $item);
1286 // When the item was successfully stored we fetch the ID of the item.
1287 if (DBM::is_result($ret)) {
1288 $current_post = dba::lastInsertId();
1290 // This can happen - for example - if there are locking timeouts.
1293 // Store the data into a spool file so that we can try again later.
1295 // At first we restore the Diaspora signature that we removed above.
1296 if (isset($encoded_signature)) {
1297 $item['dsprsig'] = $encoded_signature;
1300 // Now we store the data in the spool directory
1301 // We use "microtime" to keep the arrival order and "mt_rand" to avoid duplicates
1302 $file = 'item-'.round(microtime(true) * 10000).'-'.mt_rand().'.msg';
1304 $spoolpath = get_spoolpath();
1305 if ($spoolpath != "") {
1306 $spool = $spoolpath.'/'.$file;
1307 file_put_contents($spool, json_encode($item));
1308 logger("Item wasn't stored - Item was spooled into file ".$file, LOGGER_DEBUG);
1313 if ($current_post == 0) {
1314 // This is one of these error messages that never should occur.
1315 logger("couldn't find created item - we better quit now.");
1320 // How much entries have we created?
1321 // We wouldn't need this query when we could use an unique index - but MySQL has length problems with them.
1322 $entries = dba::count('item', ['uri' => $item['uri'], 'uid' => $item['uid'], 'network' => $item['network']]);
1325 // There are duplicates. We delete our just created entry.
1326 logger('Duplicated post occurred. uri = ' . $item['uri'] . ' uid = ' . $item['uid']);
1328 // Yes, we could do a rollback here - but we are having many users with MyISAM.
1329 dba::delete('item', ['id' => $current_post]);
1332 } elseif ($entries == 0) {
1333 // This really should never happen since we quit earlier if there were problems.
1334 logger("Something is terribly wrong. We haven't found our created entry.");
1339 logger('created item '.$current_post);
1340 self::updateContact($item);
1342 if (!$parent_id || ($item['parent-uri'] === $item['uri'])) {
1343 $parent_id = $current_post;
1347 dba::update('item', ['parent' => $parent_id], ['id' => $current_post]);
1349 $item['id'] = $current_post;
1350 $item['parent'] = $parent_id;
1352 // update the commented timestamp on the parent
1353 // Only update "commented" if it is really a comment
1354 if (($item['verb'] == ACTIVITY_POST) || !Config::get("system", "like_no_comment")) {
1355 dba::update('item', ['commented' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
1357 dba::update('item', ['changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
1362 * Friendica servers lower than 3.4.3-2 had double encoded the signature ...
1363 * We can check for this condition when we decode and encode the stuff again.
1365 if (base64_encode(base64_decode(base64_decode($dsprsig->signature))) == base64_decode($dsprsig->signature)) {
1366 $dsprsig->signature = base64_decode($dsprsig->signature);
1367 logger("Repaired double encoded signature from handle ".$dsprsig->signer, LOGGER_DEBUG);
1370 dba::insert('sign', ['iid' => $current_post, 'signed_text' => $dsprsig->signed_text,
1371 'signature' => $dsprsig->signature, 'signer' => $dsprsig->signer]);
1374 if (!empty($diaspora_signed_text)) {
1375 // Formerly we stored the signed text, the signature and the author in different fields.
1376 // We now store the raw data so that we are more flexible.
1377 dba::insert('sign', ['iid' => $current_post, 'signed_text' => $diaspora_signed_text]);
1380 $deleted = self::tagDeliver($item['uid'], $current_post);
1383 * current post can be deleted if is for a community page and no mention are
1386 if (!$deleted && !$dontcache) {
1387 $posted_item = dba::selectFirst('item', [], ['id' => $current_post]);
1388 if (DBM::is_result($posted_item)) {
1390 Addon::callHooks('post_local_end', $posted_item);
1392 Addon::callHooks('post_remote_end', $posted_item);
1395 logger('new item not found in DB, id ' . $current_post);
1399 if ($item['parent-uri'] === $item['uri']) {
1400 self::addThread($current_post);
1402 self::updateThread($parent_id);
1408 * Due to deadlock issues with the "term" table we are doing these steps after the commit.
1409 * This is not perfect - but a workable solution until we found the reason for the problem.
1411 Term::insertFromTagFieldByItemId($current_post);
1412 Term::insertFromFileFieldByItemId($current_post);
1414 if ($item['parent-uri'] === $item['uri']) {
1415 self::addShadow($current_post);
1417 self::addShadowPost($current_post);
1420 check_user_notification($current_post);
1423 Worker::add(['priority' => $priority, 'dont_fork' => true], "Notifier", $notify_type, $current_post);
1424 } elseif (!empty($parent) && $parent['origin']) {
1425 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "Notifier", "comment-import", $current_post);
1428 return $current_post;
1432 * @brief Insert a new item content entry
1434 * @param array $item The item fields that are to be inserted
1436 private static function insertContent(&$item)
1438 logger('Insert content for URI '.$item['uri']);
1440 $fields = ['uri' => $item['uri'], 'title' => $item['title'],
1441 'content-warning' => $item['content-warning'],
1442 'body' => $item['body'], 'location' => $item['location'],
1443 'coord' => $item['coord'], 'app' => $item['app'],
1444 'rendered-hash' => $item['rendered-hash'],
1445 'rendered-html' => $item['rendered-html'],
1446 'object-type' => $item['object-type'],
1447 'object' => $item['object'], 'target-type' => $item['target-type'],
1448 'target' => $item['target'], 'plink' => $item['plink'],
1449 'uri-plink-hash' => hash('sha1', $item['plink']).hash('sha1', $item['uri'])];
1451 dba::insert('item-content', $fields, true);
1455 * @brief Update existing item content entries
1457 * @param array $item The item fields that are to be changed
1458 * @param array $condition The condition for finding the item content entries
1460 private static function updateContent($item, $condition)
1462 // We have to select only the fields from the "item-content" table
1464 foreach (self::CONTENT_FIELDLIST as $field) {
1465 if (isset($item[$field])) {
1466 $fields[$field] = $item[$field];
1470 if (empty($fields)) {
1474 logger('Update content for URI '.$condition['uri']);
1476 dba::update('item-content', $fields, $condition, true);
1480 * @brief Distributes public items to the receivers
1482 * @param integer $itemid Item ID that should be added
1483 * @param string $signed_text Original text (for Diaspora signatures), JSON encoded.
1485 public static function distribute($itemid, $signed_text = '')
1487 $condition = ["`id` IN (SELECT `parent` FROM `item` WHERE `id` = ?)", $itemid];
1488 $parent = dba::selectFirst('item', ['owner-id'], $condition);
1489 if (!DBM::is_result($parent)) {
1493 // Only distribute public items from native networks
1494 $condition = ['id' => $itemid, 'uid' => 0,
1495 'network' => [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""],
1496 'visible' => true, 'deleted' => false, 'moderated' => false, 'private' => false];
1497 $item = dba::selectFirst('item', [], ['id' => $itemid]);
1498 if (!DBM::is_result($item)) {
1503 unset($item['parent']);
1504 unset($item['mention']);
1505 unset($item['wall']);
1506 unset($item['origin']);
1507 unset($item['starred']);
1508 unset($item['rendered-hash']);
1509 unset($item['rendered-html']);
1513 $condition = ["`nurl` IN (SELECT `nurl` FROM `contact` WHERE `id` = ?) AND `uid` != 0 AND NOT `blocked` AND `rel` IN (?, ?)",
1514 $parent['owner-id'], CONTACT_IS_SHARING, CONTACT_IS_FRIEND];
1515 $contacts = dba::select('contact', ['uid'], $condition);
1516 while ($contact = dba::fetch($contacts)) {
1517 $users[$contact['uid']] = $contact['uid'];
1522 if ($item['uri'] != $item['parent-uri']) {
1523 $parents = dba::select('item', ['uid', 'origin'], ["`uri` = ? AND `uid` != 0", $item['parent-uri']]);
1524 while ($parent = dba::fetch($parents)) {
1525 $users[$parent['uid']] = $parent['uid'];
1526 if ($parent['origin'] && !$item['origin']) {
1527 $origin_uid = $parent['uid'];
1532 foreach ($users as $uid) {
1533 if ($origin_uid == $uid) {
1534 $item['diaspora_signed_text'] = $signed_text;
1536 self::storeForUser($itemid, $item, $uid);
1541 * @brief Store public items for the receivers
1543 * @param integer $itemid Item ID that should be added
1544 * @param array $item The item entry that will be stored
1545 * @param integer $uid The user that will receive the item entry
1547 private static function storeForUser($itemid, $item, $uid)
1549 $item['uid'] = $uid;
1550 $item['origin'] = 0;
1552 if ($item['uri'] == $item['parent-uri']) {
1553 $item['contact-id'] = Contact::getIdForURL($item['owner-link'], $uid);
1555 $item['contact-id'] = Contact::getIdForURL($item['author-link'], $uid);
1558 if (empty($item['contact-id'])) {
1559 $self = dba::selectFirst('contact', ['id'], ['self' => true, 'uid' => $uid]);
1560 if (!DBM::is_result($self)) {
1563 $item['contact-id'] = $self['id'];
1566 if (in_array($item['type'], ["net-comment", "wall-comment"])) {
1567 $item['type'] = 'remote-comment';
1568 } elseif ($item['type'] == 'wall') {
1569 $item['type'] = 'remote';
1572 /// @todo Handling of "event-id"
1575 if ($item['uri'] == $item['parent-uri']) {
1576 $contact = dba::selectFirst('contact', [], ['id' => $item['contact-id'], 'self' => false]);
1577 if (DBM::is_result($contact)) {
1578 $notify = self::isRemoteSelf($contact, $item);
1582 $distributed = self::insert($item, false, $notify, true);
1584 if (!$distributed) {
1585 logger("Distributed public item " . $itemid . " for user " . $uid . " wasn't stored", LOGGER_DEBUG);
1587 logger("Distributed public item " . $itemid . " for user " . $uid . " with id " . $distributed, LOGGER_DEBUG);
1592 * @brief Add a shadow entry for a given item id that is a thread starter
1594 * We store every public item entry additionally with the user id "0".
1595 * This is used for the community page and for the search.
1596 * It is planned that in the future we will store public item entries only once.
1598 * @param integer $itemid Item ID that should be added
1600 public static function addShadow($itemid)
1602 $fields = ['uid', 'private', 'moderated', 'visible', 'deleted', 'network'];
1603 $condition = ['id' => $itemid, 'parent' => [0, $itemid]];
1604 $item = dba::selectFirst('item', $fields, $condition);
1606 if (!DBM::is_result($item)) {
1610 // is it already a copy?
1611 if (($itemid == 0) || ($item['uid'] == 0)) {
1615 // Is it a visible public post?
1616 if (!$item["visible"] || $item["deleted"] || $item["moderated"] || $item["private"]) {
1620 // is it an entry from a connector? Only add an entry for natively connected networks
1621 if (!in_array($item["network"], [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""])) {
1625 $item = dba::selectFirst('item', [], ['id' => $itemid]);
1627 if (DBM::is_result($item) && ($item["allow_cid"] == '') && ($item["allow_gid"] == '') &&
1628 ($item["deny_cid"] == '') && ($item["deny_gid"] == '')) {
1630 if (!dba::exists('item', ['uri' => $item['uri'], 'uid' => 0])) {
1631 // Preparing public shadow (removing user specific data)
1634 unset($item['parent']);
1635 unset($item['wall']);
1636 unset($item['mention']);
1637 unset($item['origin']);
1638 unset($item['starred']);
1639 unset($item['rendered-hash']);
1640 unset($item['rendered-html']);
1641 if ($item['uri'] == $item['parent-uri']) {
1642 $item['contact-id'] = Contact::getIdForURL($item['owner-link']);
1644 $item['contact-id'] = Contact::getIdForURL($item['author-link']);
1647 if (in_array($item['type'], ["net-comment", "wall-comment"])) {
1648 $item['type'] = 'remote-comment';
1649 } elseif ($item['type'] == 'wall') {
1650 $item['type'] = 'remote';
1653 $public_shadow = self::insert($item, false, false, true);
1655 logger("Stored public shadow for thread ".$itemid." under id ".$public_shadow, LOGGER_DEBUG);
1661 * @brief Add a shadow entry for a given item id that is a comment
1663 * This function does the same like the function above - but for comments
1665 * @param integer $itemid Item ID that should be added
1667 public static function addShadowPost($itemid)
1669 $item = dba::selectFirst('item', [], ['id' => $itemid]);
1670 if (!DBM::is_result($item)) {
1674 // Is it a toplevel post?
1675 if ($item['id'] == $item['parent']) {
1676 self::addShadow($itemid);
1680 // Is this a shadow entry?
1681 if ($item['uid'] == 0) {
1685 // Is there a shadow parent?
1686 if (!dba::exists('item', ['uri' => $item['parent-uri'], 'uid' => 0])) {
1690 // Is there already a shadow entry?
1691 if (dba::exists('item', ['uri' => $item['uri'], 'uid' => 0])) {
1695 // Save "origin" and "parent" state
1696 $origin = $item['origin'];
1697 $parent = $item['parent'];
1699 // Preparing public shadow (removing user specific data)
1702 unset($item['parent']);
1703 unset($item['wall']);
1704 unset($item['mention']);
1705 unset($item['origin']);
1706 unset($item['starred']);
1707 unset($item['rendered-hash']);
1708 unset($item['rendered-html']);
1709 $item['contact-id'] = Contact::getIdForURL($item['author-link']);
1711 if (in_array($item['type'], ["net-comment", "wall-comment"])) {
1712 $item['type'] = 'remote-comment';
1713 } elseif ($item['type'] == 'wall') {
1714 $item['type'] = 'remote';
1717 $public_shadow = self::insert($item, false, false, true);
1719 logger("Stored public shadow for comment ".$item['uri']." under id ".$public_shadow, LOGGER_DEBUG);
1721 // If this was a comment to a Diaspora post we don't get our comment back.
1722 // This means that we have to distribute the comment by ourselves.
1723 if ($origin && dba::exists('item', ['id' => $parent, 'network' => NETWORK_DIASPORA])) {
1724 self::distribute($public_shadow);
1729 * Adds a "lang" specification in a "postopts" element of given $arr,
1730 * if possible and not already present.
1731 * Expects "body" element to exist in $arr.
1733 private static function addLanguageInPostopts(&$item)
1737 if (!empty($item['postopts'])) {
1738 if (strstr($item['postopts'], 'lang=')) {
1742 $postopts = $item['postopts'];
1745 $naked_body = Text\BBCode::toPlaintext($item['body'], false);
1747 $languages = (new Text_LanguageDetect())->detect($naked_body, 3);
1749 if (sizeof($languages) > 0) {
1750 if ($postopts != '') {
1751 $postopts .= '&'; // arbitrary separator, to be reviewed
1754 $postopts .= 'lang=';
1757 foreach ($languages as $language => $score) {
1758 $postopts .= $sep . $language . ";" . $score;
1761 $item['postopts'] = $postopts;
1766 * @brief Creates an unique guid out of a given uri
1768 * @param string $uri uri of an item entry
1769 * @param string $host hostname for the GUID prefix
1770 * @return string unique guid
1772 public static function guidFromUri($uri, $host)
1774 // Our regular guid routine is using this kind of prefix as well
1775 // We have to avoid that different routines could accidentally create the same value
1776 $parsed = parse_url($uri);
1778 // We use a hash of the hostname as prefix for the guid
1779 $guid_prefix = hash("crc32", $host);
1781 // Remove the scheme to make sure that "https" and "http" doesn't make a difference
1782 unset($parsed["scheme"]);
1784 // Glue it together to be able to make a hash from it
1785 $host_id = implode("/", $parsed);
1787 // We could use any hash algorithm since it isn't a security issue
1788 $host_hash = hash("ripemd128", $host_id);
1790 return $guid_prefix.$host_hash;
1794 * generate an unique URI
1796 * @param integer $uid User id
1797 * @param string $guid An existing GUID (Otherwise it will be generated)
1801 public static function newURI($uid, $guid = "")
1804 $guid = get_guid(32);
1807 $hostname = self::getApp()->get_hostname();
1809 $user = dba::selectFirst('user', ['nickname'], ['uid' => $uid]);
1811 $uri = "urn:X-dfrn:" . $hostname . ':' . $user['nickname'] . ':' . $guid;
1817 * @brief Set "success_update" and "last-item" to the date of the last time we heard from this contact
1819 * This can be used to filter for inactive contacts.
1820 * Only do this for public postings to avoid privacy problems, since poco data is public.
1821 * Don't set this value if it isn't from the owner (could be an author that we don't know)
1823 * @param array $arr Contains the just posted item record
1825 private static function updateContact($arr)
1827 // Unarchive the author
1828 $contact = dba::selectFirst('contact', [], ['id' => $arr["author-id"]]);
1829 if (DBM::is_result($contact)) {
1830 Contact::unmarkForArchival($contact);
1833 // Unarchive the contact if it's not our own contact
1834 $contact = dba::selectFirst('contact', [], ['id' => $arr["contact-id"], 'self' => false]);
1835 if (DBM::is_result($contact)) {
1836 Contact::unmarkForArchival($contact);
1839 $update = (!$arr['private'] && (($arr["author-link"] === $arr["owner-link"]) || ($arr["parent-uri"] === $arr["uri"])));
1841 // Is it a forum? Then we don't care about the rules from above
1842 if (!$update && ($arr["network"] == NETWORK_DFRN) && ($arr["parent-uri"] === $arr["uri"])) {
1843 if (dba::exists('contact', ['id' => $arr['contact-id'], 'forum' => true])) {
1849 dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
1850 ['id' => $arr['contact-id']]);
1852 // Now do the same for the system wide contacts with uid=0
1853 if (!$arr['private']) {
1854 dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
1855 ['id' => $arr['owner-id']]);
1857 if ($arr['owner-id'] != $arr['author-id']) {
1858 dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
1859 ['id' => $arr['author-id']]);
1864 public static function setHashtags(&$item)
1867 $tags = get_tags($item["body"]);
1870 if (!count($tags)) {
1874 // This sorting is important when there are hashtags that are part of other hashtags
1875 // Otherwise there could be problems with hashtags like #test and #test2
1878 $URLSearchString = "^\[\]";
1880 // All hashtags should point to the home server if "local_tags" is activated
1881 if (Config::get('system', 'local_tags')) {
1882 $item["body"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1883 "#[url=".System::baseUrl()."/search?tag=$2]$2[/url]", $item["body"]);
1885 $item["tag"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1886 "#[url=".System::baseUrl()."/search?tag=$2]$2[/url]", $item["tag"]);
1889 // mask hashtags inside of url, bookmarks and attachments to avoid urls in urls
1890 $item["body"] = preg_replace_callback("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1892 return ("[url=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/url]");
1895 $item["body"] = preg_replace_callback("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism",
1897 return ("[bookmark=" . str_replace("#", "#", $match[1]) . "]" . str_replace("#", "#", $match[2]) . "[/bookmark]");
1900 $item["body"] = preg_replace_callback("/\[attachment (.*)\](.*?)\[\/attachment\]/ism",
1902 return ("[attachment " . str_replace("#", "#", $match[1]) . "]" . $match[2] . "[/attachment]");
1905 // Repair recursive urls
1906 $item["body"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
1907 "#$2", $item["body"]);
1909 foreach ($tags as $tag) {
1910 if ((strpos($tag, '#') !== 0) || strpos($tag, '[url=')) {
1914 $basetag = str_replace('_',' ',substr($tag,1));
1916 $newtag = '#[url=' . System::baseUrl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
1918 $item["body"] = str_replace($tag, $newtag, $item["body"]);
1920 if (!stristr($item["tag"], "/search?tag=" . $basetag . "]" . $basetag . "[/url]")) {
1921 if (strlen($item["tag"])) {
1922 $item["tag"] = ','.$item["tag"];
1924 $item["tag"] = $newtag.$item["tag"];
1928 // Convert back the masked hashtags
1929 $item["body"] = str_replace("#", "#", $item["body"]);
1932 public static function getGuidById($id)
1934 $item = dba::selectFirst('item', ['guid'], ['id' => $id]);
1935 if (DBM::is_result($item)) {
1936 return $item['guid'];
1942 public static function getIdAndNickByGuid($guid, $uid = 0)
1948 $uid == local_user();
1951 // Does the given user have this item?
1953 $item = dba::fetch_first("SELECT `item`.`id`, `user`.`nickname` FROM `item`
1954 INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
1955 WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
1956 AND `item`.`guid` = ? AND `item`.`uid` = ?", $guid, $uid);
1957 if (DBM::is_result($item)) {
1959 $nick = $item["nickname"];
1963 // Or is it anywhere on the server?
1965 $item = dba::fetch_first("SELECT `item`.`id`, `user`.`nickname` FROM `item`
1966 INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
1967 WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
1968 AND `item`.`allow_cid` = '' AND `item`.`allow_gid` = ''
1969 AND `item`.`deny_cid` = '' AND `item`.`deny_gid` = ''
1970 AND NOT `item`.`private` AND `item`.`wall`
1971 AND `item`.`guid` = ?", $guid);
1972 if (DBM::is_result($item)) {
1974 $nick = $item["nickname"];
1977 return ["nick" => $nick, "id" => $id];
1981 * look for mention tags and setup a second delivery chain for forum/community posts if appropriate
1983 * @param int $item_id
1984 * @return bool true if item was deleted, else false
1986 private static function tagDeliver($uid, $item_id)
1990 $user = dba::selectFirst('user', [], ['uid' => $uid]);
1991 if (!DBM::is_result($user)) {
1995 $community_page = (($user['page-flags'] == PAGE_COMMUNITY) ? true : false);
1996 $prvgroup = (($user['page-flags'] == PAGE_PRVGROUP) ? true : false);
1998 $item = dba::selectFirst('item', [], ['id' => $item_id]);
1999 if (!DBM::is_result($item)) {
2003 $link = normalise_link(System::baseUrl() . '/profile/' . $user['nickname']);
2006 * Diaspora uses their own hardwired link URL in @-tags
2007 * instead of the one we supply with webfinger
2009 $dlink = normalise_link(System::baseUrl() . '/u/' . $user['nickname']);
2011 $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism', $item['body'], $matches, PREG_SET_ORDER);
2013 foreach ($matches as $mtch) {
2014 if (link_compare($link, $mtch[1]) || link_compare($dlink, $mtch[1])) {
2016 logger('mention found: ' . $mtch[2]);
2022 if (($community_page || $prvgroup) &&
2023 !$item['wall'] && !$item['origin'] && ($item['id'] == $item['parent'])) {
2024 // mmh.. no mention.. community page or private group... no wall.. no origin.. top-post (not a comment)
2026 logger("no-mention top-level post to community or private group. delete.");
2027 dba::delete('item', ['id' => $item_id]);
2033 $arr = ['item' => $item, 'user' => $user];
2035 Addon::callHooks('tagged', $arr);
2037 if (!$community_page && !$prvgroup) {
2042 * tgroup delivery - setup a second delivery chain
2043 * prevent delivery looping - only proceed
2044 * if the message originated elsewhere and is a top-level post
2046 if ($item['wall'] || $item['origin'] || ($item['id'] != $item['parent'])) {
2050 // now change this copy of the post to a forum head message and deliver to all the tgroup members
2051 $self = dba::selectFirst('contact', ['id', 'name', 'url', 'thumb'], ['uid' => $uid, 'self' => true]);
2052 if (!DBM::is_result($self)) {
2056 $owner_id = Contact::getIdForURL($self['url']);
2058 // also reset all the privacy bits to the forum default permissions
2060 $private = ($user['allow_cid'] || $user['allow_gid'] || $user['deny_cid'] || $user['deny_gid']) ? 1 : 0;
2062 $forum_mode = ($prvgroup ? 2 : 1);
2064 $fields = ['wall' => true, 'origin' => true, 'forum_mode' => $forum_mode, 'contact-id' => $self['id'],
2065 'owner-id' => $owner_id, 'owner-link' => $self['url'], 'private' => $private, 'allow_cid' => $user['allow_cid'],
2066 'allow_gid' => $user['allow_gid'], 'deny_cid' => $user['deny_cid'], 'deny_gid' => $user['deny_gid']];
2067 dba::update('item', $fields, ['id' => $item_id]);
2069 self::updateThread($item_id);
2071 Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], 'Notifier', 'tgroup', $item_id);
2074 public static function isRemoteSelf($contact, &$datarray)
2078 if (!$contact['remote_self']) {
2082 // Prevent the forwarding of posts that are forwarded
2083 if ($datarray["extid"] == NETWORK_DFRN) {
2084 logger('Already forwarded', LOGGER_DEBUG);
2088 // Prevent to forward already forwarded posts
2089 if ($datarray["app"] == $a->get_hostname()) {
2090 logger('Already forwarded (second test)', LOGGER_DEBUG);
2094 // Only forward posts
2095 if ($datarray["verb"] != ACTIVITY_POST) {
2096 logger('No post', LOGGER_DEBUG);
2100 if (($contact['network'] != NETWORK_FEED) && $datarray['private']) {
2101 logger('Not public', LOGGER_DEBUG);
2105 $datarray2 = $datarray;
2106 logger('remote-self start - Contact '.$contact['url'].' - '.$contact['remote_self'].' Item '.print_r($datarray, true), LOGGER_DEBUG);
2107 if ($contact['remote_self'] == 2) {
2108 $self = dba::selectFirst('contact', ['id', 'name', 'url', 'thumb'],
2109 ['uid' => $contact['uid'], 'self' => true]);
2110 if (DBM::is_result($self)) {
2111 $datarray['contact-id'] = $self["id"];
2113 $datarray['owner-name'] = $self["name"];
2114 $datarray['owner-link'] = $self["url"];
2115 $datarray['owner-avatar'] = $self["thumb"];
2117 $datarray['author-name'] = $datarray['owner-name'];
2118 $datarray['author-link'] = $datarray['owner-link'];
2119 $datarray['author-avatar'] = $datarray['owner-avatar'];
2121 unset($datarray['created']);
2122 unset($datarray['edited']);
2124 unset($datarray['network']);
2125 unset($datarray['owner-id']);
2126 unset($datarray['author-id']);
2129 if ($contact['network'] != NETWORK_FEED) {
2130 $datarray["guid"] = get_guid(32);
2131 unset($datarray["plink"]);
2132 $datarray["uri"] = self::newURI($contact['uid'], $datarray["guid"]);
2133 $datarray["parent-uri"] = $datarray["uri"];
2134 $datarray["thr-parent"] = $datarray["uri"];
2135 $datarray["extid"] = NETWORK_DFRN;
2136 $urlpart = parse_url($datarray2['author-link']);
2137 $datarray["app"] = $urlpart["host"];
2139 $datarray['private'] = 0;
2143 if ($contact['network'] != NETWORK_FEED) {
2144 // Store the original post
2145 $result = self::insert($datarray2, false, false);
2146 logger('remote-self post original item - Contact '.$contact['url'].' return '.$result.' Item '.print_r($datarray2, true), LOGGER_DEBUG);
2148 $datarray["app"] = "Feed";
2152 // Trigger automatic reactions for addons
2153 $datarray['api_source'] = true;
2155 // We have to tell the hooks who we are - this really should be improved
2156 $_SESSION["authenticated"] = true;
2157 $_SESSION["uid"] = $contact['uid'];
2166 * @param array $item
2170 public static function fixPrivatePhotos($s, $uid, $item = null, $cid = 0)
2172 if (Config::get('system', 'disable_embedded')) {
2176 logger('check for photos', LOGGER_DEBUG);
2177 $site = substr(System::baseUrl(), strpos(System::baseUrl(), '://'));
2182 $img_start = strpos($orig_body, '[img');
2183 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
2184 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
2186 while (($img_st_close !== false) && ($img_len !== false)) {
2187 $img_st_close++; // make it point to AFTER the closing bracket
2188 $image = substr($orig_body, $img_start + $img_st_close, $img_len);
2190 logger('found photo ' . $image, LOGGER_DEBUG);
2192 if (stristr($image, $site . '/photo/')) {
2193 // Only embed locally hosted photos
2195 $i = basename($image);
2196 $i = str_replace(['.jpg', '.png', '.gif'], ['', '', ''], $i);
2197 $x = strpos($i, '-');
2200 $res = substr($i, $x + 1);
2201 $i = substr($i, 0, $x);
2202 $fields = ['data', 'type', 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid'];
2203 $photo = dba::selectFirst('photo', $fields, ['resource-id' => $i, 'scale' => $res, 'uid' => $uid]);
2204 if (DBM::is_result($photo)) {
2206 * Check to see if we should replace this photo link with an embedded image
2207 * 1. No need to do so if the photo is public
2208 * 2. If there's a contact-id provided, see if they're in the access list
2209 * for the photo. If so, embed it.
2210 * 3. Otherwise, if we have an item, see if the item permissions match the photo
2211 * permissions, regardless of order but first check to see if they're an exact
2212 * match to save some processing overhead.
2214 if (self::hasPermissions($photo)) {
2216 $recips = self::enumeratePermissions($photo);
2217 if (in_array($cid, $recips)) {
2221 if (self::samePermissions($item, $photo)) {
2227 $data = $photo['data'];
2228 $type = $photo['type'];
2230 // If a custom width and height were specified, apply before embedding
2231 if (preg_match("/\[img\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
2232 logger('scaling photo', LOGGER_DEBUG);
2234 $width = intval($match[1]);
2235 $height = intval($match[2]);
2237 $Image = new Image($data, $type);
2238 if ($Image->isValid()) {
2239 $Image->scaleDown(max($width, $height));
2240 $data = $Image->asString();
2241 $type = $Image->getType();
2245 logger('replacing photo', LOGGER_DEBUG);
2246 $image = 'data:' . $type . ';base64,' . base64_encode($data);
2247 logger('replaced: ' . $image, LOGGER_DATA);
2253 $new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/img]';
2254 $orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/img]'));
2255 if ($orig_body === false) {
2259 $img_start = strpos($orig_body, '[img');
2260 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
2261 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
2264 $new_body = $new_body . $orig_body;
2269 private static function hasPermissions($obj)
2273 x($obj, 'allow_cid')
2275 x($obj, 'allow_gid')
2284 private static function samePermissions($obj1, $obj2)
2286 // first part is easy. Check that these are exactly the same.
2287 if (($obj1['allow_cid'] == $obj2['allow_cid'])
2288 && ($obj1['allow_gid'] == $obj2['allow_gid'])
2289 && ($obj1['deny_cid'] == $obj2['deny_cid'])
2290 && ($obj1['deny_gid'] == $obj2['deny_gid'])) {
2294 // This is harder. Parse all the permissions and compare the resulting set.
2295 $recipients1 = self::enumeratePermissions($obj1);
2296 $recipients2 = self::enumeratePermissions($obj2);
2300 /// @TODO Comparison of arrays, maybe use array_diff_assoc() here?
2301 return ($recipients1 == $recipients2);
2304 // returns an array of contact-ids that are allowed to see this object
2305 private static function enumeratePermissions($obj)
2307 $allow_people = expand_acl($obj['allow_cid']);
2308 $allow_groups = Group::expand(expand_acl($obj['allow_gid']));
2309 $deny_people = expand_acl($obj['deny_cid']);
2310 $deny_groups = Group::expand(expand_acl($obj['deny_gid']));
2311 $recipients = array_unique(array_merge($allow_people, $allow_groups));
2312 $deny = array_unique(array_merge($deny_people, $deny_groups));
2313 $recipients = array_diff($recipients, $deny);
2317 public static function getFeedTags($item)
2321 $cnt = preg_match_all('|\#\[url\=(.*?)\](.*?)\[\/url\]|', $item['tag'], $matches);
2323 for ($x = 0; $x < $cnt; $x ++) {
2324 if ($matches[1][$x]) {
2325 $ret[$matches[2][$x]] = ['#', $matches[1][$x], $matches[2][$x]];
2330 $cnt = preg_match_all('|\@\[url\=(.*?)\](.*?)\[\/url\]|', $item['tag'], $matches);
2332 for ($x = 0; $x < $cnt; $x ++) {
2333 if ($matches[1][$x]) {
2334 $ret[] = ['@', $matches[1][$x], $matches[2][$x]];
2341 public static function expire($uid, $days, $network = "", $force = false)
2343 if (!$uid || ($days < 1)) {
2348 * $expire_network_only = save your own wall posts
2349 * and just expire conversations started by others
2351 $expire_network_only = PConfig::get($uid,'expire', 'network_only');
2352 $sql_extra = (intval($expire_network_only) ? " AND wall = 0 " : "");
2354 if ($network != "") {
2355 $sql_extra .= sprintf(" AND network = '%s' ", dbesc($network));
2358 * There is an index "uid_network_received" but not "uid_network_created"
2359 * This avoids the creation of another index just for one purpose.
2360 * And it doesn't really matter wether to look at "received" or "created"
2362 $range = "AND `received` < UTC_TIMESTAMP() - INTERVAL %d DAY ";
2364 $range = "AND `created` < UTC_TIMESTAMP() - INTERVAL %d DAY ";
2367 $r = q("SELECT `file`, `resource-id`, `starred`, `type`, `id` FROM `item`
2368 WHERE `uid` = %d $range
2376 if (!DBM::is_result($r)) {
2380 $expire_items = PConfig::get($uid, 'expire', 'items', 1);
2382 // Forcing expiring of items - but not notes and marked items
2384 $expire_items = true;
2387 $expire_notes = PConfig::get($uid, 'expire', 'notes', 1);
2388 $expire_starred = PConfig::get($uid, 'expire', 'starred', 1);
2389 $expire_photos = PConfig::get($uid, 'expire', 'photos', 0);
2391 logger('User '.$uid.': expire: # items=' . count($r). "; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
2393 foreach ($r as $item) {
2395 // don't expire filed items
2397 if (strpos($item['file'],'[') !== false) {
2401 // Only expire posts, not photos and photo comments
2403 if ($expire_photos == 0 && strlen($item['resource-id'])) {
2405 } elseif ($expire_starred == 0 && intval($item['starred'])) {
2407 } elseif ($expire_notes == 0 && $item['type'] == 'note') {
2409 } elseif ($expire_items == 0 && $item['type'] != 'note') {
2413 self::deleteById($item['id'], PRIORITY_LOW);
2417 public static function firstPostDate($uid, $wall = false)
2419 $condition = ['uid' => $uid, 'wall' => $wall, 'deleted' => false, 'visible' => true, 'moderated' => false];
2420 $params = ['order' => ['created' => false]];
2421 $thread = dba::selectFirst('thread', ['created'], $condition, $params);
2422 if (DBM::is_result($thread)) {
2423 return substr(DateTimeFormat::local($thread['created']), 0, 10);
2429 * @brief add/remove activity to an item
2431 * Toggle activities as like,dislike,attend of an item
2433 * @param string $item_id
2434 * @param string $verb
2435 * Activity verb. One of
2436 * like, unlike, dislike, undislike, attendyes, unattendyes,
2437 * attendno, unattendno, attendmaybe, unattendmaybe
2438 * @hook 'post_local_end'
2440 * 'post_id' => ID of posted item
2442 public static function performLike($item_id, $verb)
2444 if (!local_user() && !remote_user()) {
2451 $bodyverb = L10n::t('%1$s likes %2$s\'s %3$s');
2452 $activity = ACTIVITY_LIKE;
2456 $bodyverb = L10n::t('%1$s doesn\'t like %2$s\'s %3$s');
2457 $activity = ACTIVITY_DISLIKE;
2461 $bodyverb = L10n::t('%1$s is attending %2$s\'s %3$s');
2462 $activity = ACTIVITY_ATTEND;
2466 $bodyverb = L10n::t('%1$s is not attending %2$s\'s %3$s');
2467 $activity = ACTIVITY_ATTENDNO;
2470 case 'unattendmaybe':
2471 $bodyverb = L10n::t('%1$s may attend %2$s\'s %3$s');
2472 $activity = ACTIVITY_ATTENDMAYBE;
2475 logger('like: unknown verb ' . $verb . ' for item ' . $item_id);
2479 // Enable activity toggling instead of on/off
2480 $event_verb_flag = $activity === ACTIVITY_ATTEND || $activity === ACTIVITY_ATTENDNO || $activity === ACTIVITY_ATTENDMAYBE;
2482 logger('like: verb ' . $verb . ' item ' . $item_id);
2484 $item = dba::selectFirst('item', [], ['`id` = ? OR `uri` = ?', $item_id, $item_id]);
2485 if (!DBM::is_result($item)) {
2486 logger('like: unknown item ' . $item_id);
2490 $uid = $item['uid'];
2491 if (($uid == 0) && local_user()) {
2492 $uid = local_user();
2495 if (!can_write_wall($uid)) {
2496 logger('like: unable to write on wall ' . $uid);
2500 // Retrieves the local post owner
2501 $owner_self_contact = dba::selectFirst('contact', [], ['uid' => $uid, 'self' => true]);
2502 if (!DBM::is_result($owner_self_contact)) {
2503 logger('like: unknown owner ' . $uid);
2507 // Retrieve the current logged in user's public contact
2508 $author_id = public_contact();
2510 $author_contact = dba::selectFirst('contact', [], ['id' => $author_id]);
2511 if (!DBM::is_result($author_contact)) {
2512 logger('like: unknown author ' . $author_id);
2516 // Contact-id is the uid-dependant author contact
2517 if (local_user() == $uid) {
2518 $item_contact_id = $owner_self_contact['id'];
2519 $item_contact = $owner_self_contact;
2521 $item_contact_id = Contact::getIdForURL($author_contact['url'], $uid, true);
2522 $item_contact = dba::selectFirst('contact', [], ['id' => $item_contact_id]);
2523 if (!DBM::is_result($item_contact)) {
2524 logger('like: unknown item contact ' . $item_contact_id);
2529 // Look for an existing verb row
2530 // event participation are essentially radio toggles. If you make a subsequent choice,
2531 // we need to eradicate your first choice.
2532 if ($event_verb_flag) {
2533 $verbs = "'" . dbesc(ACTIVITY_ATTEND) . "', '" . dbesc(ACTIVITY_ATTENDNO) . "', '" . dbesc(ACTIVITY_ATTENDMAYBE) . "'";
2535 $verbs = "'".dbesc($activity)."'";
2538 /// @todo This query is expected to be a performance eater due to the "OR" - it has to be changed totally
2539 $existing_like = q("SELECT `id`, `guid`, `verb` FROM `item`
2540 WHERE `verb` IN ($verbs)
2542 AND `author-id` = %d
2544 AND (`parent` = '%s' OR `parent-uri` = '%s' OR `thr-parent` = '%s')
2546 intval($author_contact['id']),
2547 intval($item['uid']),
2548 dbesc($item_id), dbesc($item_id), dbesc($item['uri'])
2551 // If it exists, mark it as deleted
2552 if (DBM::is_result($existing_like)) {
2553 $like_item = $existing_like[0];
2555 // Already voted, undo it
2556 $fields = ['deleted' => true, 'unseen' => true, 'changed' => DateTimeFormat::utcNow()];
2557 dba::update('item', $fields, ['id' => $like_item['id']]);
2559 // Clean up the Diaspora signatures for this like
2560 // Go ahead and do it even if Diaspora support is disabled. We still want to clean up
2561 // if it had been enabled in the past
2562 dba::delete('sign', ['iid' => $like_item['id']]);
2564 $like_item_id = $like_item['id'];
2565 Worker::add(PRIORITY_HIGH, "Notifier", "like", $like_item_id);
2567 if (!$event_verb_flag || $like_item['verb'] == $activity) {
2572 // Verb is "un-something", just trying to delete existing entries
2573 if (strpos($verb, 'un') === 0) {
2577 // Else or if event verb different from existing row, create a new item row
2578 $post_type = (($item['resource-id']) ? L10n::t('photo') : L10n::t('status'));
2579 if ($item['object-type'] === ACTIVITY_OBJ_EVENT) {
2580 $post_type = L10n::t('event');
2582 $objtype = $item['resource-id'] ? ACTIVITY_OBJ_IMAGE : ACTIVITY_OBJ_NOTE ;
2583 $link = xmlify('<link rel="alternate" type="text/html" href="' . System::baseUrl() . '/display/' . $owner_self_contact['nick'] . '/' . $item['id'] . '" />' . "\n") ;
2584 $body = $item['body'];
2589 <type>$objtype</type>
2591 <id>{$item['uri']}</id>
2594 <content>$body</content>
2598 $ulink = '[url=' . $author_contact['url'] . ']' . $author_contact['name'] . '[/url]';
2599 $alink = '[url=' . $item['author-link'] . ']' . $item['author-name'] . '[/url]';
2600 $plink = '[url=' . System::baseUrl() . '/display/' . $owner_self_contact['nick'] . '/' . $item['id'] . ']' . $post_type . '[/url]';
2603 'guid' => get_guid(32),
2604 'uri' => self::newURI($item['uid']),
2605 'uid' => $item['uid'],
2606 'contact-id' => $item_contact_id,
2607 'type' => 'activity',
2608 'wall' => $item['wall'],
2610 'gravity' => GRAVITY_LIKE,
2611 'parent' => $item['id'],
2612 'parent-uri' => $item['uri'],
2613 'thr-parent' => $item['uri'],
2614 'owner-id' => $item['owner-id'],
2615 'owner-name' => $item['owner-name'],
2616 'owner-link' => $item['owner-link'],
2617 'owner-avatar' => $item['owner-avatar'],
2618 'author-id' => $author_contact['id'],
2619 'author-name' => $author_contact['name'],
2620 'author-link' => $author_contact['url'],
2621 'author-avatar' => $author_contact['thumb'],
2622 'body' => sprintf($bodyverb, $ulink, $alink, $plink),
2623 'verb' => $activity,
2624 'object-type' => $objtype,
2626 'allow_cid' => $item['allow_cid'],
2627 'allow_gid' => $item['allow_gid'],
2628 'deny_cid' => $item['deny_cid'],
2629 'deny_gid' => $item['deny_gid'],
2634 $new_item_id = self::insert($new_item);
2636 // If the parent item isn't visible then set it to visible
2637 if (!$item['visible']) {
2638 self::update(['visible' => true], ['id' => $item['id']]);
2641 // Save the author information for the like in case we need to relay to Diaspora
2642 Diaspora::storeLikeSignature($item_contact, $new_item_id);
2644 $new_item['id'] = $new_item_id;
2646 Addon::callHooks('post_local_end', $new_item);
2648 Worker::add(PRIORITY_HIGH, "Notifier", "like", $new_item_id);
2653 private static function addThread($itemid, $onlyshadow = false)
2655 $fields = ['uid', 'created', 'edited', 'commented', 'received', 'changed', 'wall', 'private', 'pubmail',
2656 'moderated', 'visible', 'starred', 'bookmark', 'contact-id',
2657 'deleted', 'origin', 'forum_mode', 'mention', 'network', 'author-id', 'owner-id'];
2658 $condition = ["`id` = ? AND (`parent` = ? OR `parent` = 0)", $itemid, $itemid];
2659 $item = dba::selectFirst('item', $fields, $condition);
2661 if (!DBM::is_result($item)) {
2665 $item['iid'] = $itemid;
2668 $result = dba::insert('thread', $item);
2670 logger("Add thread for item ".$itemid." - ".print_r($result, true), LOGGER_DEBUG);
2674 private static function updateThread($itemid, $setmention = false)
2676 $fields = ['uid', 'guid', 'title', 'body', 'created', 'edited', 'commented', 'received', 'changed',
2677 'wall', 'private', 'pubmail', 'moderated', 'visible', 'starred', 'bookmark', 'contact-id',
2678 'deleted', 'origin', 'forum_mode', 'network', 'author-id', 'owner-id', 'rendered-html', 'rendered-hash'];
2679 $condition = ["`id` = ? AND (`parent` = ? OR `parent` = 0)", $itemid, $itemid];
2681 $item = dba::selectFirst('item', $fields, $condition);
2682 if (!DBM::is_result($item)) {
2687 $item["mention"] = 1;
2694 foreach ($item as $field => $data) {
2695 if (!in_array($field, ["guid", "title", "body", "rendered-html", "rendered-hash"])) {
2696 $fields[$field] = $data;
2700 $result = dba::update('thread', $fields, ['iid' => $itemid]);
2702 logger("Update thread for item ".$itemid." - guid ".$item["guid"]." - ".(int)$result, LOGGER_DEBUG);
2704 // Updating a shadow item entry
2705 $items = dba::selectFirst('item', ['id'], ['guid' => $item['guid'], 'uid' => 0]);
2707 if (!DBM::is_result($items)) {
2711 $fields = ['title' => $item['title'], 'body' => $item['body'],
2712 'rendered-html' => $item['rendered-html'], 'rendered-hash' => $item['rendered-hash']];
2713 $result = dba::update('item', $fields, ['id' => $items['id']]);
2715 logger("Updating public shadow for post ".$items["id"]." - guid ".$item["guid"]." Result: ".print_r($result, true), LOGGER_DEBUG);
2718 private static function deleteThread($itemid, $itemuri = "")
2720 $item = dba::selectFirst('thread', ['uid'], ['iid' => $itemid]);
2721 if (!DBM::is_result($item)) {
2722 logger('No thread found for id '.$itemid, LOGGER_DEBUG);
2726 // Using dba::delete at this time could delete the associated item entries
2727 $result = dba::e("DELETE FROM `thread` WHERE `iid` = ?", $itemid);
2729 logger("deleteThread: Deleted thread for item ".$itemid." - ".print_r($result, true), LOGGER_DEBUG);
2731 if ($itemuri != "") {
2732 $condition = ["`uri` = ? AND NOT `deleted` AND NOT (`uid` IN (?, 0))", $itemuri, $item["uid"]];
2733 if (!dba::exists('item', $condition)) {
2734 dba::delete('item', ['uri' => $itemuri, 'uid' => 0]);
2735 logger("deleteThread: Deleted shadow for item ".$itemuri, LOGGER_DEBUG);