friendica/src/Model/Item.php

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<?php
/**
* @file src/Model/Item.php
*/
namespace Friendica\Model;
use Friendica\BaseObject;
use Friendica\Content\Text;
use Friendica\Core\Addon;
use Friendica\Core\Config;
use Friendica\Core\L10n;
use Friendica\Core\PConfig;
use Friendica\Core\System;
use Friendica\Core\Worker;
use Friendica\Database\DBM;
use Friendica\Model\Contact;
use Friendica\Model\Conversation;
use Friendica\Model\Group;
use Friendica\Model\Term;
use Friendica\Object\Image;
use Friendica\Protocol\Diaspora;
use Friendica\Protocol\OStatus;
use Friendica\Util\DateTimeFormat;
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use Friendica\Util\XML;
use dba;
use Text_LanguageDetect;
require_once 'boot.php';
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require_once 'include/items.php';
require_once 'include/text.php';
class Item extends BaseObject
{
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// Field list that is used to display the items
const DISPLAY_FIELDLIST = ['uid', 'id', 'parent', 'uri', 'thr-parent', 'parent-uri', 'guid', 'network',
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'commented', 'created', 'edited', 'received', 'verb', 'object-type', 'postopts', 'plink',
'wall', 'private', 'starred', 'origin', 'title', 'body', 'file', 'attach',
'content-warning', 'location', 'coord', 'app', 'rendered-hash', 'rendered-html', 'object',
'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid', 'item_id',
'author-id', 'author-link', 'author-name', 'author-avatar',
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'owner-id', 'owner-link', 'owner-name', 'owner-avatar',
'contact-id', 'contact-link', 'contact-name', 'contact-avatar',
'writable', 'self', 'cid', 'alias',
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'event-id', 'event-created', 'event-edited', 'event-start', 'event-finish',
'event-summary', 'event-desc', 'event-location', 'event-type',
'event-nofinish', 'event-adjust', 'event-ignore', 'event-id'];
// Field list that is used to deliver items via the protocols
const DELIVER_FIELDLIST = ['uid', 'id', 'parent', 'uri', 'thr-parent', 'parent-uri', 'guid',
'created', 'edited', 'verb', 'object-type', 'object', 'target',
'private', 'title', 'body', 'location', 'coord', 'app',
'attach', 'tag', 'bookmark', 'deleted', 'extid',
'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
'author-id', 'author-link', 'owner-link', 'contact-uid',
'signed_text', 'signature', 'signer'];
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const CONTENT_FIELDLIST = ['title', 'content-warning', 'body', 'location',
'coord', 'app', 'rendered-hash', 'rendered-html',
'object-type', 'object', 'target-type', 'target'];
/**
* @brief Fetch a single item row
*
* @param mixed $stmt statement object
* @return array current row
*/
public static function fetch($stmt)
{
$row = dba::fetch($stmt);
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// Fetch data from the item-content table whenever there is content there
foreach (self::CONTENT_FIELDLIST as $field) {
if (isset($row[$field]) && !empty($row['item-content-' . $field])) {
$row[$field] = $row['item-content-' . $field];
unset($row['item-content-' . $field]);
}
}
// We prefer the data from the user's contact over the public one
if (!empty($row['author-link']) && !empty($row['contact-link']) &&
($row['author-link'] == $row['contact-link'])) {
if (isset($row['author-avatar']) && !empty($row['contact-avatar'])) {
$row['author-avatar'] = $row['contact-avatar'];
}
if (isset($row['author-name']) && !empty($row['contact-name'])) {
$row['author-name'] = $row['contact-name'];
}
}
if (!empty($row['owner-link']) && !empty($row['contact-link']) &&
($row['owner-link'] == $row['contact-link'])) {
if (isset($row['owner-avatar']) && !empty($row['contact-avatar'])) {
$row['owner-avatar'] = $row['contact-avatar'];
}
if (isset($row['owner-name']) && !empty($row['contact-name'])) {
$row['owner-name'] = $row['contact-name'];
}
}
// We can always comment on posts from these networks
if (isset($row['writable']) && !empty($row['network']) &&
in_array($row['network'], [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS])) {
$row['writable'] = true;
}
return $row;
}
/**
* @brief Fills an array with data from an item query
*
* @param object $stmt statement object
* @return array Data array
*/
public static function inArray($stmt, $do_close = true) {
if (is_bool($stmt)) {
return $stmt;
}
$data = [];
while ($row = self::fetch($stmt)) {
$data[] = $row;
}
if ($do_close) {
dba::close($stmt);
}
return $data;
}
/**
* Retrieve a single record from the item table for a given user and returns it in an associative array
*
* @brief Retrieve a single record from a table
* @param integer $uid User ID
* @param array $fields
* @param array $condition
* @param array $params
* @return bool|array
* @see dba::select
*/
public static function selectFirstForUser($uid, array $selected = [], array $condition = [], $params = [])
{
$params['uid'] = $uid;
if (empty($selected)) {
$selected = Item::DISPLAY_FIELDLIST;
}
return self::selectFirst($selected, $condition, $params);
}
/**
* @brief Select rows from the item table for a given user
*
* @param integer $uid User ID
* @param array $selected Array of selected fields, empty for all
* @param array $condition Array of fields for condition
* @param array $params Array of several parameters
*
* @return boolean|object
*/
public static function selectForUser($uid, array $selected = [], array $condition = [], $params = [])
{
$params['uid'] = $uid;
if (empty($selected)) {
$selected = Item::DISPLAY_FIELDLIST;
}
return self::select($selected, $condition, $params);
}
/**
* Retrieve a single record from the item table and returns it in an associative array
*
* @brief Retrieve a single record from a table
* @param array $fields
* @param array $condition
* @param array $params
* @return bool|array
* @see dba::select
*/
public static function selectFirst(array $fields = [], array $condition = [], $params = [])
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{
$params['limit'] = 1;
$result = self::select($fields, $condition, $params);
if (is_bool($result)) {
return $result;
} else {
$row = self::fetch($result);
dba::close($result);
return $row;
}
}
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/**
* @brief Select rows from the item table
*
* @param array $selected Array of selected fields, empty for all
* @param array $condition Array of fields for condition
* @param array $params Array of several parameters
*
* @return boolean|object
*/
public static function select(array $selected = [], array $condition = [], $params = [])
{
$uid = 0;
$usermode = false;
if (isset($params['uid'])) {
$uid = $params['uid'];
$usermode = true;
}
$fields = self::fieldlist($selected);
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$select_fields = self::constructSelectFields($fields, $selected);
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$condition_string = dba::buildCondition($condition);
$condition_string = self::addTablesToFields($condition_string, $fields);
if ($usermode) {
$condition_string = $condition_string . ' AND ' . self::condition(false);
}
$param_string = self::addTablesToFields(dba::buildParameter($params), $fields);
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$table = "`item` " . self::constructJoins($uid, $select_fields . $condition_string . $param_string, false);
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$sql = "SELECT " . $select_fields . " FROM " . $table . $condition_string . $param_string;
return dba::p($sql, $condition);
}
/**
* @brief Select rows from the starting post in the item table
*
* @param integer $uid User ID
* @param array $fields Array of selected fields, empty for all
* @param array $condition Array of fields for condition
* @param array $params Array of several parameters
*
* @return boolean|object
*/
public static function selectThreadForUser($uid, array $selected = [], array $condition = [], $params = [])
{
$params['uid'] = $uid;
if (empty($selected)) {
$selected = Item::DISPLAY_FIELDLIST;
}
return self::selectThread($selected, $condition, $params);
}
/**
* Retrieve a single record from the starting post in the item table and returns it in an associative array
*
* @brief Retrieve a single record from a table
* @param integer $uid User ID
* @param array $selected
* @param array $condition
* @param array $params
* @return bool|array
* @see dba::select
*/
public static function selectFirstThreadForUser($uid, array $selected = [], array $condition = [], $params = [])
{
$params['uid'] = $uid;
if (empty($selected)) {
$selected = Item::DISPLAY_FIELDLIST;
}
return self::selectFirstThread($selected, $condition, $params);
}
/**
* Retrieve a single record from the starting post in the item table and returns it in an associative array
*
* @brief Retrieve a single record from a table
* @param array $fields
* @param array $condition
* @param array $params
* @return bool|array
* @see dba::select
*/
public static function selectFirstThread(array $fields = [], array $condition = [], $params = [])
{
$params['limit'] = 1;
$result = self::selectThread($fields, $condition, $params);
if (is_bool($result)) {
return $result;
} else {
$row = self::fetch($result);
dba::close($result);
return $row;
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}
}
/**
* @brief Select rows from the starting post in the item table
*
* @param array $selected Array of selected fields, empty for all
* @param array $condition Array of fields for condition
* @param array $params Array of several parameters
*
* @return boolean|object
*/
public static function selectThread(array $selected = [], array $condition = [], $params = [])
{
$uid = 0;
$usermode = false;
if (isset($params['uid'])) {
$uid = $params['uid'];
$usermode = true;
}
$fields = self::fieldlist($selected);
$threadfields = ['thread' => ['iid', 'uid', 'contact-id', 'owner-id', 'author-id',
'created', 'edited', 'commented', 'received', 'changed', 'wall', 'private',
'pubmail', 'moderated', 'visible', 'starred', 'ignored', 'bookmark',
'unseen', 'deleted', 'origin', 'forum_mode', 'mention', 'network']];
$select_fields = self::constructSelectFields($fields, $selected);
$condition_string = dba::buildCondition($condition);
$condition_string = self::addTablesToFields($condition_string, $threadfields);
$condition_string = self::addTablesToFields($condition_string, $fields);
if ($usermode) {
$condition_string = $condition_string . ' AND ' . self::condition(true);
}
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$param_string = dba::buildParameter($params);
$param_string = self::addTablesToFields($param_string, $threadfields);
$param_string = self::addTablesToFields($param_string, $fields);
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$table = "`thread` " . self::constructJoins($uid, $select_fields . $condition_string . $param_string, true);
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$sql = "SELECT " . $select_fields . " FROM " . $table . $condition_string . $param_string;
return dba::p($sql, $condition);
}
/**
* @brief Returns a list of fields that are associated with the item table
*
* @return array field list
*/
private static function fieldlist($selected)
{
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$fields = [];
$fields['item'] = ['id', 'uid', 'parent', 'uri', 'parent-uri', 'thr-parent', 'guid',
'contact-id', 'owner-id', 'author-id', 'type', 'wall', 'gravity', 'extid',
'created', 'edited', 'commented', 'received', 'changed',
'title', 'body', 'app', 'verb', 'object-type', 'object', 'target-type', 'target',
'postopts', 'plink', 'resource-id', 'event-id', 'tag', 'attach', 'inform',
'file', 'location', 'coord', 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
'private', 'pubmail', 'moderated', 'visible', 'starred', 'bookmark',
'unseen', 'deleted', 'origin', 'forum_mode', 'mention',
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'rendered-hash', 'rendered-html', 'global', 'content-warning',
'id' => 'item_id', 'network'];
$fields['author'] = ['url' => 'author-link', 'name' => 'author-name',
'thumb' => 'author-avatar', 'nick' => 'author-nick'];
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$fields['owner'] = ['url' => 'owner-link', 'name' => 'owner-name',
'thumb' => 'owner-avatar', 'nick' => 'owner-nick'];
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$fields['contact'] = ['url' => 'contact-link', 'name' => 'contact-name', 'thumb' => 'contact-avatar',
'writable', 'self', 'id' => 'cid', 'alias', 'uid' => 'contact-uid',
'photo', 'name-date', 'uri-date', 'avatar-date', 'thumb', 'dfrn-id'];
$fields['parent-item'] = ['guid' => 'parent-guid', 'network' => 'parent-network'];
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$fields['parent-item-author'] = ['url' => 'parent-author-link', 'name' => 'parent-author-name'];
$fields['event'] = ['created' => 'event-created', 'edited' => 'event-edited',
'start' => 'event-start','finish' => 'event-finish',
'summary' => 'event-summary','desc' => 'event-desc',
'location' => 'event-location', 'type' => 'event-type',
'nofinish' => 'event-nofinish','adjust' => 'event-adjust',
'ignore' => 'event-ignore', 'id' => 'event-id'];
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$fields['sign'] = ['signed_text', 'signature', 'signer'];
return $fields;
}
/**
* @brief Returns SQL condition for the "select" functions
*
* @param boolean $thread_mode Called for the items (false) or for the threads (true)
*
* @return string SQL condition
*/
private static function condition($thread_mode)
{
if ($thread_mode) {
$master_table = "`thread`";
} else {
$master_table = "`item`";
}
return "$master_table.`visible` AND NOT $master_table.`deleted` AND NOT $master_table.`moderated` AND (`user-item`.`hidden` IS NULL OR NOT `user-item`.`hidden`) ";
}
/**
* @brief Returns all needed "JOIN" commands for the "select" functions
*
* @param integer $uid User ID
* @param string $sql_commands The parts of the built SQL commands in the "select" functions
* @param boolean $thread_mode Called for the items (false) or for the threads (true)
*
* @return string The SQL joins for the "select" functions
*/
private static function constructJoins($uid, $sql_commands, $thread_mode)
{
if ($thread_mode) {
$master_table = "`thread`";
$master_table_key = "`thread`.`iid`";
$joins = "STRAIGHT_JOIN `item` ON `item`.`id` = `thread`.`iid` ";
} else {
$master_table = "`item`";
$master_table_key = "`item`.`id`";
$joins = '';
}
$joins .= sprintf("STRAIGHT_JOIN `contact` ON `contact`.`id` = $master_table.`contact-id`
AND NOT `contact`.`blocked`
AND ((NOT `contact`.`readonly` AND NOT `contact`.`pending` AND (`contact`.`rel` IN (%s, %s)))
OR `contact`.`self` OR (`item`.`id` != `item`.`parent`) OR `contact`.`uid` = 0)
STRAIGHT_JOIN `contact` AS `author` ON `author`.`id` = $master_table.`author-id` AND NOT `author`.`blocked`
STRAIGHT_JOIN `contact` AS `owner` ON `owner`.`id` = $master_table.`owner-id` AND NOT `owner`.`blocked`
LEFT JOIN `user-item` ON `user-item`.`iid` = $master_table_key AND `user-item`.`uid` = %d",
CONTACT_IS_SHARING, CONTACT_IS_FRIEND, intval($uid));
if (strpos($sql_commands, "`group_member`.") !== false) {
$joins .= " STRAIGHT_JOIN `group_member` ON `group_member`.`contact-id` = $master_table.`contact-id`";
}
if (strpos($sql_commands, "`user`.") !== false) {
$joins .= " STRAIGHT_JOIN `user` ON `user`.`uid` = $master_table.`uid`";
}
if (strpos($sql_commands, "`event`.") !== false) {
$joins .= " LEFT JOIN `event` ON `event-id` = `event`.`id`";
}
if (strpos($sql_commands, "`sign`.") !== false) {
$joins .= " LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id`";
}
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if (strpos($sql_commands, "`item-content`.") !== false) {
$joins .= " LEFT JOIN `item-content` ON `item-content`.`uri` = `item`.`uri`";
}
if ((strpos($sql_commands, "`parent-item`.") !== false) || (strpos($sql_commands, "`parent-author`.") !== false)) {
$joins .= " STRAIGHT_JOIN `item` AS `parent-item` ON `parent-item`.`id` = `item`.`parent`";
}
if (strpos($sql_commands, "`parent-item-author`.") !== false) {
$joins .= " STRAIGHT_JOIN `contact` AS `parent-item-author` ON `parent-item-author`.`id` = `parent-item`.`author-id`";
}
return $joins;
}
/**
* @brief Add the field list for the "select" functions
*
* @param array $fields The field definition array
* @param array $selected The array with the selected fields from the "select" functions
*
* @return string The field list
*/
private static function constructSelectFields($fields, $selected)
{
$selection = [];
foreach ($fields as $table => $table_fields) {
foreach ($table_fields as $field => $select) {
if (empty($selected) || in_array($select, $selected)) {
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if (in_array($select, self::CONTENT_FIELDLIST)) {
$selection[] = "`item-content`.`".$select."` AS `item-content-" . $select . "`";
}
if (is_int($field)) {
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$selection[] = "`" . $table . "`.`" . $select . "`";
} else {
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$selection[] = "`" . $table . "`.`" . $field . "` AS `" . $select . "`";
}
}
}
}
return implode(", ", $selection);
}
/**
* @brief add table definition to fields in an SQL query
*
* @param string $query SQL query
* @param array $fields The field definition array
*
* @return string the changed SQL query
*/
private static function addTablesToFields($query, $fields)
{
foreach ($fields as $table => $table_fields) {
foreach ($table_fields as $alias => $field) {
if (is_int($alias)) {
$replace_field = $field;
} else {
$replace_field = $alias;
}
$search = "/([^\.])`" . $field . "`/i";
$replace = "$1`" . $table . "`.`" . $replace_field . "`";
$query = preg_replace($search, $replace, $query);
}
}
return $query;
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}
/**
* @brief Update existing item entries
*
* @param array $fields The fields that are to be changed
* @param array $condition The condition for finding the item entries
*
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* In the future we may have to change permissions as well.
* Then we had to add the user id as third parameter.
*
* A return value of "0" doesn't mean an error - but that 0 rows had been changed.
*
* @return integer|boolean number of affected rows - or "false" if there was an error
*/
public static function update(array $fields, array $condition)
{
if (empty($condition) || empty($fields)) {
return false;
}
// To ensure the data integrity we do it in an transaction
dba::transaction();
// We cannot simply expand the condition to check for origin entries
// The condition needn't to be a simple array but could be a complex condition.
// And we have to execute this query before the update to ensure to fetch the same data.
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$items = dba::select('item', ['id', 'origin', 'uri'], $condition);
$success = dba::update('item', $fields, $condition);
if (!$success) {
dba::close($items);
dba::rollback();
return false;
}
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$rows = dba::affected_rows();
while ($item = dba::fetch($items)) {
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self::updateContent($fields, ['uri' => $item['uri']]);
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Term::insertFromTagFieldByItemId($item['id']);
Term::insertFromFileFieldByItemId($item['id']);
self::updateThread($item['id']);
// We only need to notfiy others when it is an original entry from us.
// Only call the notifier when the item has some content relevant change.
if ($item['origin'] && in_array('edited', array_keys($fields))) {
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Worker::add(PRIORITY_HIGH, "Notifier", 'edit_post', $item['id']);
}
}
dba::close($items);
dba::commit();
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return $rows;
}
/**
* @brief Delete an item and notify others about it - if it was ours
*
* @param array $condition The condition for finding the item entries
* @param integer $priority Priority for the notification
*/
public static function delete($condition, $priority = PRIORITY_HIGH)
{
$items = dba::select('item', ['id'], $condition);
while ($item = dba::fetch($items)) {
self::deleteById($item['id'], $priority);
}
dba::close($items);
}
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/**
* @brief Delete an item for an user and notify others about it - if it was ours
*
* @param array $condition The condition for finding the item entries
* @param integer $uid User who wants to delete this item
*/
public static function deleteForUser($condition, $uid)
{
if ($uid == 0) {
return;
}
$items = dba::select('item', ['id', 'uid'], $condition);
while ($item = dba::fetch($items)) {
// "Deleting" global items just means hiding them
if ($item['uid'] == 0) {
dba::update('user-item', ['hidden' => true], ['iid' => $item['id'], 'uid' => $uid], true);
} elseif ($item['uid'] == $uid) {
self::deleteById($item['id'], PRIORITY_HIGH);
} else {
logger('Wrong ownership. Not deleting item ' . $item['id']);
}
}
dba::close($items);
}
/**
* @brief Delete an item and notify others about it - if it was ours
*
* @param integer $item_id Item ID that should be delete
* @param integer $priority Priority for the notification
*
* @return boolean success
*/
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private static function deleteById($item_id, $priority = PRIORITY_HIGH)
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{
// locate item to be deleted
$fields = ['id', 'uri', 'uid', 'parent', 'parent-uri', 'origin',
'deleted', 'file', 'resource-id', 'event-id', 'attach',
'verb', 'object-type', 'object', 'target', 'contact-id'];
$item = dba::selectFirst('item', $fields, ['id' => $item_id]);
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if (!DBM::is_result($item)) {
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logger('Item with ID ' . $item_id . " hasn't been found.", LOGGER_DEBUG);
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return false;
}
if ($item['deleted']) {
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logger('Item with ID ' . $item_id . ' has already been deleted.', LOGGER_DEBUG);
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return false;
}
$parent = dba::selectFirst('item', ['origin'], ['id' => $item['parent']]);
if (!DBM::is_result($parent)) {
$parent = ['origin' => false];
}
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// clean up categories and tags so they don't end up as orphans
$matches = false;
$cnt = preg_match_all('/<(.*?)>/', $item['file'], $matches, PREG_SET_ORDER);
if ($cnt) {
foreach ($matches as $mtch) {
file_tag_unsave_file($item['uid'], $item['id'], $mtch[1],true);
}
}
$matches = false;
$cnt = preg_match_all('/\[(.*?)\]/', $item['file'], $matches, PREG_SET_ORDER);
if ($cnt) {
foreach ($matches as $mtch) {
file_tag_unsave_file($item['uid'], $item['id'], $mtch[1],false);
}
}
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/*
* If item is a link to a photo resource, nuke all the associated photos
* (visitors will not have photo resources)
* This only applies to photos uploaded from the photos page. Photos inserted into a post do not
* generate a resource-id and therefore aren't intimately linked to the item.
*/
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if (strlen($item['resource-id'])) {
dba::delete('photo', ['resource-id' => $item['resource-id'], 'uid' => $item['uid']]);
}
// If item is a link to an event, delete the event.
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if (intval($item['event-id'])) {
Event::delete($item['event-id']);
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}
// If item has attachments, drop them
foreach (explode(", ", $item['attach']) as $attach) {
preg_match("|attach/(\d+)|", $attach, $matches);
dba::delete('attach', ['id' => $matches[1], 'uid' => $item['uid']]);
}
// Delete tags that had been attached to other items
self::deleteTagsFromItem($item);
// Set the item to "deleted"
dba::update('item', ['deleted' => true, 'title' => '', 'body' => '',
'edited' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()],
['id' => $item['id']]);
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Term::insertFromTagFieldByItemId($item['id']);
Term::insertFromFileFieldByItemId($item['id']);
self::deleteThread($item['id'], $item['parent-uri']);
if (!dba::exists('item', ["`uri` = ? AND `uid` != 0 AND NOT `deleted`", $item['uri']])) {
self::delete(['uri' => $item['uri'], 'uid' => 0, 'deleted' => false], $priority);
}
// If it's the parent of a comment thread, kill all the kids
if ($item['id'] == $item['parent']) {
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self::delete(['parent' => $item['parent'], 'deleted' => false], $priority);
}
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// Is it our comment and/or our thread?
if ($item['origin'] || $parent['origin']) {
// When we delete the original post we will delete all existing copies on the server as well
self::delete(['uri' => $item['uri'], 'deleted' => false], $priority);
// send the notification upstream/downstream
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Worker::add(['priority' => $priority, 'dont_fork' => true], "Notifier", "drop", intval($item['id']));
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} elseif ($item['uid'] != 0) {
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// When we delete just our local user copy of an item, we have to set a marker to hide it
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$global_item = dba::selectFirst('item', ['id'], ['uri' => $item['uri'], 'uid' => 0, 'deleted' => false]);
if (DBM::is_result($global_item)) {
dba::update('user-item', ['hidden' => true], ['iid' => $global_item['id'], 'uid' => $item['uid']], true);
}
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}
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logger('Item with ID ' . $item_id . " has been deleted.", LOGGER_DEBUG);
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return true;
}
private static function deleteTagsFromItem($item)
{
if (($item["verb"] != ACTIVITY_TAG) || ($item["object-type"] != ACTIVITY_OBJ_TAGTERM)) {
return;
}
$xo = XML::parseString($item["object"], false);
$xt = XML::parseString($item["target"], false);
if ($xt->type != ACTIVITY_OBJ_NOTE) {
return;
}
$i = dba::selectFirst('item', ['id', 'contact-id', 'tag'], ['uri' => $xt->id, 'uid' => $item['uid']]);
if (!DBM::is_result($i)) {
return;
}
// For tags, the owner cannot remove the tag on the author's copy of the post.
$owner_remove = ($item["contact-id"] == $i["contact-id"]);
$author_copy = $item["origin"];
if (($owner_remove && $author_copy) || !$owner_remove) {
return;
}
$tags = explode(',', $i["tag"]);
$newtags = [];
if (count($tags)) {
foreach ($tags as $tag) {
if (trim($tag) !== trim($xo->body)) {
$newtags[] = trim($tag);
}
}
}
self::update(['tag' => implode(',', $newtags)], ['id' => $i["id"]]);
}
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private static function guid($item, $notify)
{
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$guid = notags(trim($item['guid']));
if (!empty($guid)) {
return $guid;
}
if ($notify) {
// We have to avoid duplicates. So we create the GUID in form of a hash of the plink or uri.
// We add the hash of our own host because our host is the original creator of the post.
$prefix_host = get_app()->get_hostname();
} else {
$prefix_host = '';
// We are only storing the post so we create a GUID from the original hostname.
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if (!empty($item['author-link'])) {
$parsed = parse_url($item['author-link']);
if (!empty($parsed['host'])) {
$prefix_host = $parsed['host'];
}
}
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if (empty($prefix_host) && !empty($item['plink'])) {
$parsed = parse_url($item['plink']);
if (!empty($parsed['host'])) {
$prefix_host = $parsed['host'];
}
}
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if (empty($prefix_host) && !empty($item['uri'])) {
$parsed = parse_url($item['uri']);
if (!empty($parsed['host'])) {
$prefix_host = $parsed['host'];
}
}
// Is it in the format data@host.tld? - Used for mail contacts
if (empty($prefix_host) && !empty($item['author-link']) && strstr($item['author-link'], '@')) {
$mailparts = explode('@', $item['author-link']);
$prefix_host = array_pop($mailparts);
}
}
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if (!empty($item['plink'])) {
$guid = self::guidFromUri($item['plink'], $prefix_host);
} elseif (!empty($item['uri'])) {
$guid = self::guidFromUri($item['uri'], $prefix_host);
} else {
$guid = get_guid(32, hash('crc32', $prefix_host));
}
return $guid;
}
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private static function contactId($item)
{
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$contact_id = (int)$item["contact-id"];
if (!empty($contact_id)) {
return $contact_id;
}
logger('Missing contact-id. Called by: '.System::callstack(), LOGGER_DEBUG);
/*
* First we are looking for a suitable contact that matches with the author of the post
* This is done only for comments
*/
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if ($item['parent-uri'] != $item['uri']) {
$contact_id = Contact::getIdForURL($item['author-link'], $item['uid']);
}
// If not present then maybe the owner was found
if ($contact_id == 0) {
$contact_id = Contact::getIdForURL($item['owner-link'], $item['uid']);
}
// Still missing? Then use the "self" contact of the current user
if ($contact_id == 0) {
$self = dba::selectFirst('contact', ['id'], ['self' => true, 'uid' => $item['uid']]);
if (DBM::is_result($self)) {
$contact_id = $self["id"];
}
}
logger("Contact-id was missing for post ".$item['guid']." from user id ".$item['uid']." - now set to ".$contact_id, LOGGER_DEBUG);
return $contact_id;
}
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public static function insert($item, $force_parent = false, $notify = false, $dontcache = false)
{
$a = get_app();
// If it is a posting where users should get notifications, then define it as wall posting
if ($notify) {
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$item['wall'] = 1;
$item['type'] = 'wall';
$item['origin'] = 1;
$item['network'] = NETWORK_DFRN;
$item['protocol'] = PROTOCOL_DFRN;
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if (is_int($notify)) {
$priority = $notify;
} else {
$priority = PRIORITY_HIGH;
}
} else {
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$item['network'] = trim(defaults($item, 'network', NETWORK_PHANTOM));
}
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$item['guid'] = self::guid($item, $notify);
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$item['uri'] = notags(trim(defaults($item, 'uri', self::newURI($item['uid'], $item['guid']))));
// Store conversation data
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$item = Conversation::insert($item);
/*
* If a Diaspora signature structure was passed in, pull it out of the
* item array and set it aside for later storage.
*/
$dsprsig = null;
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if (x($item, 'dsprsig')) {
$encoded_signature = $item['dsprsig'];
$dsprsig = json_decode(base64_decode($item['dsprsig']));
unset($item['dsprsig']);
}
if (!empty($item['diaspora_signed_text'])) {
$diaspora_signed_text = $item['diaspora_signed_text'];
unset($item['diaspora_signed_text']);
} else {
$diaspora_signed_text = '';
}
// Converting the plink
/// @TODO Check if this is really still needed
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if ($item['network'] == NETWORK_OSTATUS) {
if (isset($item['plink'])) {
$item['plink'] = OStatus::convertHref($item['plink']);
} elseif (isset($item['uri'])) {
$item['plink'] = OStatus::convertHref($item['uri']);
}
}
if (!empty($item['thr-parent'])) {
$item['parent-uri'] = $item['thr-parent'];
}
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if (x($item, 'gravity')) {
$item['gravity'] = intval($item['gravity']);
} elseif ($item['parent-uri'] === $item['uri']) {
$item['gravity'] = 0;
} elseif (activity_match($item['verb'],ACTIVITY_POST)) {
$item['gravity'] = 6;
} else {
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$item['gravity'] = 6; // extensible catchall
}
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$item['type'] = defaults($item, 'type', 'remote');
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$uid = intval($item['uid']);
// check for create date and expire time
$expire_interval = Config::get('system', 'dbclean-expire-days', 0);
$user = dba::selectFirst('user', ['expire'], ['uid' => $uid]);
if (DBM::is_result($user) && ($user['expire'] > 0) && (($user['expire'] < $expire_interval) || ($expire_interval == 0))) {
$expire_interval = $user['expire'];
}
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if (($expire_interval > 0) && !empty($item['created'])) {
$expire_date = time() - ($expire_interval * 86400);
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$created_date = strtotime($item['created']);
if ($created_date < $expire_date) {
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logger('item-store: item created ('.date('c', $created_date).') before expiration time ('.date('c', $expire_date).'). ignored. ' . print_r($item,true), LOGGER_DEBUG);
return 0;
}
}
/*
* Do we already have this item?
* We have to check several networks since Friendica posts could be repeated
* via OStatus (maybe Diasporsa as well)
*/
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if (in_array($item['network'], [NETWORK_DIASPORA, NETWORK_DFRN, NETWORK_OSTATUS, ""])) {
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$condition = ["`uri` = ? AND `uid` = ? AND `network` IN (?, ?, ?)",
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trim($item['uri']), $item['uid'],
NETWORK_DIASPORA, NETWORK_DFRN, NETWORK_OSTATUS];
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$existing = dba::selectFirst('item', ['id', 'network'], $condition);
if (DBM::is_result($existing)) {
// We only log the entries with a different user id than 0. Otherwise we would have too many false positives
if ($uid != 0) {
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logger("Item with uri ".$item['uri']." already existed for user ".$uid." with id ".$existing["id"]." target network ".$existing["network"]." - new network: ".$item['network']);
}
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return $existing["id"];
}
}
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self::addLanguageInPostopts($item);
$item['wall'] = intval(defaults($item, 'wall', 0));
$item['extid'] = trim(defaults($item, 'extid', ''));
$item['author-name'] = trim(defaults($item, 'author-name', ''));
$item['author-link'] = trim(defaults($item, 'author-link', ''));
$item['author-avatar'] = trim(defaults($item, 'author-avatar', ''));
$item['owner-name'] = trim(defaults($item, 'owner-name', ''));
$item['owner-link'] = trim(defaults($item, 'owner-link', ''));
$item['owner-avatar'] = trim(defaults($item, 'owner-avatar', ''));
$item['received'] = ((x($item, 'received') !== false) ? DateTimeFormat::utc($item['received']) : DateTimeFormat::utcNow());
$item['created'] = ((x($item, 'created') !== false) ? DateTimeFormat::utc($item['created']) : $item['received']);
$item['edited'] = ((x($item, 'edited') !== false) ? DateTimeFormat::utc($item['edited']) : $item['created']);
$item['changed'] = ((x($item, 'changed') !== false) ? DateTimeFormat::utc($item['changed']) : $item['created']);
$item['commented'] = ((x($item, 'commented') !== false) ? DateTimeFormat::utc($item['commented']) : $item['created']);
$item['title'] = trim(defaults($item, 'title', ''));
$item['location'] = trim(defaults($item, 'location', ''));
$item['coord'] = trim(defaults($item, 'coord', ''));
$item['visible'] = ((x($item, 'visible') !== false) ? intval($item['visible']) : 1);
$item['deleted'] = 0;
$item['parent-uri'] = trim(defaults($item, 'parent-uri', $item['uri']));
$item['verb'] = trim(defaults($item, 'verb', ''));
$item['object-type'] = trim(defaults($item, 'object-type', ''));
$item['object'] = trim(defaults($item, 'object', ''));
$item['target-type'] = trim(defaults($item, 'target-type', ''));
$item['target'] = trim(defaults($item, 'target', ''));
$item['plink'] = trim(defaults($item, 'plink', ''));
$item['allow_cid'] = trim(defaults($item, 'allow_cid', ''));
$item['allow_gid'] = trim(defaults($item, 'allow_gid', ''));
$item['deny_cid'] = trim(defaults($item, 'deny_cid', ''));
$item['deny_gid'] = trim(defaults($item, 'deny_gid', ''));
$item['private'] = intval(defaults($item, 'private', 0));
$item['bookmark'] = intval(defaults($item, 'bookmark', 0));
$item['body'] = trim(defaults($item, 'body', ''));
$item['tag'] = trim(defaults($item, 'tag', ''));
$item['attach'] = trim(defaults($item, 'attach', ''));
$item['app'] = trim(defaults($item, 'app', ''));
$item['origin'] = intval(defaults($item, 'origin', 0));
$item['postopts'] = trim(defaults($item, 'postopts', ''));
$item['resource-id'] = trim(defaults($item, 'resource-id', ''));
$item['event-id'] = intval(defaults($item, 'event-id', 0));
$item['inform'] = trim(defaults($item, 'inform', ''));
$item['file'] = trim(defaults($item, 'file', ''));
// When there is no content then we don't post it
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if ($item['body'].$item['title'] == '') {
return 0;
}
// Items cannot be stored before they happen ...
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if ($item['created'] > DateTimeFormat::utcNow()) {
$item['created'] = DateTimeFormat::utcNow();
}
// We haven't invented time travel by now.
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if ($item['edited'] > DateTimeFormat::utcNow()) {
$item['edited'] = DateTimeFormat::utcNow();
}
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if (($item['author-link'] == "") && ($item['owner-link'] == "")) {
logger("Both author-link and owner-link are empty. Called by: " . System::callstack(), LOGGER_DEBUG);
}
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$item['plink'] = defaults($item, 'plink', System::baseUrl() . '/display/' . urlencode($item['guid']));
// The contact-id should be set before "self::insert" was called - but there seems to be issues sometimes
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$item["contact-id"] = self::contactId($item);
$default = ['url' => $item['author-link'], 'name' => $item['author-name'],
'photo' => $item['author-avatar'], 'network' => $item['network']];
$item['author-id'] = defaults($item, 'author-id', Contact::getIdForURL($item["author-link"], 0, false, $default));
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if (Contact::isBlocked($item["author-id"])) {
logger('Contact '.$item["author-id"].' is blocked, item '.$item["uri"].' will not be stored');
return 0;
}
$default = ['url' => $item['owner-link'], 'name' => $item['owner-name'],
'photo' => $item['owner-avatar'], 'network' => $item['network']];
$item['owner-id'] = defaults($item, 'owner-id', Contact::getIdForURL($item["owner-link"], 0, false, $default));
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if (Contact::isBlocked($item["owner-id"])) {
logger('Contact '.$item["owner-id"].' is blocked, item '.$item["uri"].' will not be stored');
return 0;
}
//unset($item['author-link']);
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unset($item['author-name']);
unset($item['author-avatar']);
//unset($item['owner-link']);
unset($item['owner-name']);
unset($item['owner-avatar']);
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if ($item['network'] == NETWORK_PHANTOM) {
logger('Missing network. Called by: '.System::callstack(), LOGGER_DEBUG);
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$contact = Contact::getDetailsByURL($item['author-link'], $item['uid']);
if (!empty($contact['network'])) {
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$item['network'] = $contact["network"];
} else {
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$item['network'] = NETWORK_DFRN;
}
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logger("Set network to " . $item["network"] . " for " . $item["uri"], LOGGER_DEBUG);
}
// Checking if there is already an item with the same guid
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logger('Checking for an item for user '.$item['uid'].' on network '.$item['network'].' with the guid '.$item['guid'], LOGGER_DEBUG);
$condition = ['guid' => $item['guid'], 'network' => $item['network'], 'uid' => $item['uid']];
if (dba::exists('item', $condition)) {
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logger('found item with guid '.$item['guid'].' for user '.$item['uid'].' on network '.$item['network'], LOGGER_DEBUG);
return 0;
}
// Check for hashtags in the body and repair or add hashtag links
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self::setHashtags($item);
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$item['thr-parent'] = $item['parent-uri'];
$notify_type = '';
$allow_cid = '';
$allow_gid = '';
$deny_cid = '';
$deny_gid = '';
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if ($item['parent-uri'] === $item['uri']) {
$parent_id = 0;
$parent_deleted = 0;
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$allow_cid = $item['allow_cid'];
$allow_gid = $item['allow_gid'];
$deny_cid = $item['deny_cid'];
$deny_gid = $item['deny_gid'];
$notify_type = 'wall-new';
} else {
// find the parent and snarf the item id and ACLs
// and anything else we need to inherit
$fields = ['uri', 'parent-uri', 'id', 'deleted',
'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid',
'wall', 'private', 'forum_mode', 'origin'];
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$condition = ['uri' => $item['parent-uri'], 'uid' => $item['uid']];
$params = ['order' => ['id' => false]];
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$parent = dba::selectFirst('item', $fields, $condition, $params);
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if (DBM::is_result($parent)) {
// is the new message multi-level threaded?
// even though we don't support it now, preserve the info
// and re-attach to the conversation parent.
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if ($parent['uri'] != $parent['parent-uri']) {
$item['parent-uri'] = $parent['parent-uri'];
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$condition = ['uri' => $item['parent-uri'],
'parent-uri' => $item['parent-uri'],
'uid' => $item['uid']];
$params = ['order' => ['id' => false]];
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$toplevel_parent = dba::selectFirst('item', $fields, $condition, $params);
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if (DBM::is_result($toplevel_parent)) {
$parent = $toplevel_parent;
}
}
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$parent_id = $parent['id'];
$parent_deleted = $parent['deleted'];
$allow_cid = $parent['allow_cid'];
$allow_gid = $parent['allow_gid'];
$deny_cid = $parent['deny_cid'];
$deny_gid = $parent['deny_gid'];
$item['wall'] = $parent['wall'];
$notify_type = 'comment-new';
/*
* If the parent is private, force privacy for the entire conversation
* This differs from the above settings as it subtly allows comments from
* email correspondents to be private even if the overall thread is not.
*/
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if ($parent['private']) {
$item['private'] = $parent['private'];
}
/*
* Edge case. We host a public forum that was originally posted to privately.
* The original author commented, but as this is a comment, the permissions
* weren't fixed up so it will still show the comment as private unless we fix it here.
*/
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if ((intval($parent['forum_mode']) == 1) && $parent['private']) {
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$item['private'] = 0;
}
// If its a post from myself then tag the thread as "mention"
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logger("Checking if parent ".$parent_id." has to be tagged as mention for user ".$item['uid'], LOGGER_DEBUG);
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$user = dba::selectFirst('user', ['nickname'], ['uid' => $item['uid']]);
if (DBM::is_result($user)) {
$self = normalise_link(System::baseUrl() . '/profile/' . $user['nickname']);
$self_id = Contact::getIdForURL($self, 0, true);
logger("'myself' is ".$self_id." for parent ".$parent_id." checking against ".$item['author-id']." and ".$item['owner-id'], LOGGER_DEBUG);
if (($item['author-id'] == $self_id) || ($item['owner-id'] == $self_id)) {
dba::update('thread', ['mention' => true], ['iid' => $parent_id]);
logger("tagged thread ".$parent_id." as mention for user ".$self, LOGGER_DEBUG);
}
}
} else {
/*
* Allow one to see reply tweets from status.net even when
* we don't have or can't see the original post.
*/
if ($force_parent) {
logger('$force_parent=true, reply converted to top-level post.');
$parent_id = 0;
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$item['parent-uri'] = $item['uri'];
$item['gravity'] = 0;
} else {
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logger('item parent '.$item['parent-uri'].' for '.$item['uid'].' was not found - ignoring item');
return 0;
}
$parent_deleted = 0;
}
}
$condition = ["`uri` = ? AND `network` IN (?, ?) AND `uid` = ?",
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$item['uri'], $item['network'], NETWORK_DFRN, $item['uid']];
if (dba::exists('item', $condition)) {
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logger('duplicated item with the same uri found. '.print_r($item,true));
return 0;
}
// On Friendica and Diaspora the GUID is unique
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if (in_array($item['network'], [NETWORK_DFRN, NETWORK_DIASPORA])) {
$condition = ['guid' => $item['guid'], 'uid' => $item['uid']];
if (dba::exists('item', $condition)) {
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logger('duplicated item with the same guid found. '.print_r($item,true));
return 0;
}
} else {
// Check for an existing post with the same content. There seems to be a problem with OStatus.
$condition = ["`body` = ? AND `network` = ? AND `created` = ? AND `contact-id` = ? AND `uid` = ?",
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$item['body'], $item['network'], $item['created'], $item['contact-id'], $item['uid']];
if (dba::exists('item', $condition)) {
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logger('duplicated item with the same body found. '.print_r($item,true));
return 0;
}
}
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// Is this item available in the global items (with uid=0)?
if ($item["uid"] == 0) {
$item["global"] = true;
// Set the global flag on all items if this was a global item entry
dba::update('item', ['global' => true], ['uri' => $item["uri"]]);
} else {
$item["global"] = dba::exists('item', ['uid' => 0, 'uri' => $item["uri"]]);
}
// ACL settings
if (strlen($allow_cid) || strlen($allow_gid) || strlen($deny_cid) || strlen($deny_gid)) {
$private = 1;
} else {
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$private = $item['private'];
}
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$item["allow_cid"] = $allow_cid;
$item["allow_gid"] = $allow_gid;
$item["deny_cid"] = $deny_cid;
$item["deny_gid"] = $deny_gid;
$item["private"] = $private;
$item["deleted"] = $parent_deleted;
// Fill the cache field
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put_item_in_cache($item);
if ($notify) {
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Addon::callHooks('post_local', $item);
} else {
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Addon::callHooks('post_remote', $item);
}
// This array field is used to trigger some automatic reactions
// It is mainly used in the "post_local" hook.
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unset($item['api_source']);
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if (x($item, 'cancel')) {
logger('post cancelled by addon.');
return 0;
}
/*
* Check for already added items.
* There is a timing issue here that sometimes creates double postings.
* An unique index would help - but the limitations of MySQL (maximum size of index values) prevent this.
*/
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if ($item["uid"] == 0) {
if (dba::exists('item', ['uri' => trim($item['uri']), 'uid' => 0])) {
logger('Global item already stored. URI: '.$item['uri'].' on network '.$item['network'], LOGGER_DEBUG);
return 0;
}
}
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logger('' . print_r($item,true), LOGGER_DATA);
dba::transaction();
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self::insertContent($item);
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$ret = dba::insert('item', $item);
// When the item was successfully stored we fetch the ID of the item.
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if (DBM::is_result($ret)) {
$current_post = dba::lastInsertId();
} else {
// This can happen - for example - if there are locking timeouts.
dba::rollback();
// Store the data into a spool file so that we can try again later.
// At first we restore the Diaspora signature that we removed above.
if (isset($encoded_signature)) {
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$item['dsprsig'] = $encoded_signature;
}
// Now we store the data in the spool directory
// We use "microtime" to keep the arrival order and "mt_rand" to avoid duplicates
$file = 'item-'.round(microtime(true) * 10000).'-'.mt_rand().'.msg';
$spoolpath = get_spoolpath();
if ($spoolpath != "") {
$spool = $spoolpath.'/'.$file;
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file_put_contents($spool, json_encode($item));
logger("Item wasn't stored - Item was spooled into file ".$file, LOGGER_DEBUG);
}
return 0;
}
if ($current_post == 0) {
// This is one of these error messages that never should occur.
logger("couldn't find created item - we better quit now.");
dba::rollback();
return 0;
}
// How much entries have we created?
// We wouldn't need this query when we could use an unique index - but MySQL has length problems with them.
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$entries = dba::count('item', ['uri' => $item['uri'], 'uid' => $item['uid'], 'network' => $item['network']]);
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if ($entries > 1) {
// There are duplicates. We delete our just created entry.
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logger('Duplicated post occurred. uri = ' . $item['uri'] . ' uid = ' . $item['uid']);
// Yes, we could do a rollback here - but we are having many users with MyISAM.
dba::delete('item', ['id' => $current_post]);
dba::commit();
return 0;
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} elseif ($entries == 0) {
// This really should never happen since we quit earlier if there were problems.
logger("Something is terribly wrong. We haven't found our created entry.");
dba::rollback();
return 0;
}
logger('created item '.$current_post);
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self::updateContact($item);
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if (!$parent_id || ($item['parent-uri'] === $item['uri'])) {
$parent_id = $current_post;
}
// Set parent id
dba::update('item', ['parent' => $parent_id], ['id' => $current_post]);
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$item['id'] = $current_post;
$item['parent'] = $parent_id;
// update the commented timestamp on the parent
// Only update "commented" if it is really a comment
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if (($item['verb'] == ACTIVITY_POST) || !Config::get("system", "like_no_comment")) {
dba::update('item', ['commented' => DateTimeFormat::utcNow(), 'changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
} else {
dba::update('item', ['changed' => DateTimeFormat::utcNow()], ['id' => $parent_id]);
}
if ($dsprsig) {
/*
* Friendica servers lower than 3.4.3-2 had double encoded the signature ...
* We can check for this condition when we decode and encode the stuff again.
*/
if (base64_encode(base64_decode(base64_decode($dsprsig->signature))) == base64_decode($dsprsig->signature)) {
$dsprsig->signature = base64_decode($dsprsig->signature);
logger("Repaired double encoded signature from handle ".$dsprsig->signer, LOGGER_DEBUG);
}
dba::insert('sign', ['iid' => $current_post, 'signed_text' => $dsprsig->signed_text,
'signature' => $dsprsig->signature, 'signer' => $dsprsig->signer]);
}
if (!empty($diaspora_signed_text)) {
// Formerly we stored the signed text, the signature and the author in different fields.
// We now store the raw data so that we are more flexible.
dba::insert('sign', ['iid' => $current_post, 'signed_text' => $diaspora_signed_text]);
}
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$deleted = self::tagDeliver($item['uid'], $current_post);
/*
* current post can be deleted if is for a community page and no mention are
* in it.
*/
if (!$deleted && !$dontcache) {
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$posted_item = dba::selectFirst('item', [], ['id' => $current_post]);
if (DBM::is_result($posted_item)) {
if ($notify) {
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Addon::callHooks('post_local_end', $posted_item);
} else {
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Addon::callHooks('post_remote_end', $posted_item);
}
} else {
logger('new item not found in DB, id ' . $current_post);
}
}
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if ($item['parent-uri'] === $item['uri']) {
self::addThread($current_post);
} else {
self::updateThread($parent_id);
}
dba::commit();
/*
* Due to deadlock issues with the "term" table we are doing these steps after the commit.
* This is not perfect - but a workable solution until we found the reason for the problem.
*/
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Term::insertFromTagFieldByItemId($current_post);
Term::insertFromFileFieldByItemId($current_post);
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if ($item['parent-uri'] === $item['uri']) {
self::addShadow($current_post);
} else {
self::addShadowPost($current_post);
}
check_user_notification($current_post);
if ($notify) {
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Worker::add(['priority' => $priority, 'dont_fork' => true], "Notifier", $notify_type, $current_post);
} elseif (!empty($parent) && $parent['origin']) {
Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], "Notifier", "comment-import", $current_post);
}
return $current_post;
}
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/**
* @brief Insert a new item content entry
*
* @param array $item The item fields that are to be inserted
*/
private static function insertContent(&$item)
{
logger('Insert content for URI '.$item['uri']);
$fields = ['uri' => $item['uri'], 'title' => $item['title'],
'content-warning' => $item['content-warning'],
'body' => $item['body'], 'location' => $item['location'],
'coord' => $item['coord'], 'app' => $item['app'],
'rendered-hash' => $item['rendered-hash'],
'rendered-html' => $item['rendered-html'],
'object-type' => $item['object-type'],
'object' => $item['object'], 'target-type' => $item['target-type'],
'target' => $item['target'], 'plink' => $item['plink'],
'uri-plink-hash' => hash('sha1', $item['plink']).hash('sha1', $item['uri'])];
dba::insert('item-content', $fields, true);
}
/**
* @brief Update existing item content entries
*
* @param array $item The item fields that are to be changed
* @param array $condition The condition for finding the item content entries
*/
private static function updateContent($item, $condition)
{
// We have to select only the fields from the "item-content" table
$fields = [];
foreach (self::CONTENT_FIELDLIST as $field) {
if (isset($item[$field])) {
$fields[$field] = $item[$field];
}
}
if (empty($fields)) {
return;
}
logger('Update content for URI '.$condition['uri']);
dba::update('item-content', $fields, $condition, true);
}
/**
* @brief Distributes public items to the receivers
*
* @param integer $itemid Item ID that should be added
* @param string $signed_text Original text (for Diaspora signatures), JSON encoded.
*/
public static function distribute($itemid, $signed_text = '')
{
$condition = ["`id` IN (SELECT `parent` FROM `item` WHERE `id` = ?)", $itemid];
$parent = dba::selectFirst('item', ['owner-id'], $condition);
if (!DBM::is_result($parent)) {
return;
}
// Only distribute public items from native networks
$condition = ['id' => $itemid, 'uid' => 0,
'network' => [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""],
'visible' => true, 'deleted' => false, 'moderated' => false, 'private' => false];
$item = dba::selectFirst('item', [], ['id' => $itemid]);
if (!DBM::is_result($item)) {
return;
}
unset($item['id']);
unset($item['parent']);
unset($item['mention']);
unset($item['wall']);
unset($item['origin']);
unset($item['starred']);
unset($item['rendered-hash']);
unset($item['rendered-html']);
$users = [];
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$condition = ["`nurl` IN (SELECT `nurl` FROM `contact` WHERE `id` = ?) AND `uid` != 0 AND NOT `blocked` AND `rel` IN (?, ?)",
$parent['owner-id'], CONTACT_IS_SHARING, CONTACT_IS_FRIEND];
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$contacts = dba::select('contact', ['uid'], $condition);
while ($contact = dba::fetch($contacts)) {
$users[$contact['uid']] = $contact['uid'];
}
$origin_uid = 0;
if ($item['uri'] != $item['parent-uri']) {
$parents = dba::select('item', ['uid', 'origin'], ["`uri` = ? AND `uid` != 0", $item['parent-uri']]);
while ($parent = dba::fetch($parents)) {
$users[$parent['uid']] = $parent['uid'];
if ($parent['origin'] && !$item['origin']) {
$origin_uid = $parent['uid'];
}
}
}
foreach ($users as $uid) {
if ($origin_uid == $uid) {
$item['diaspora_signed_text'] = $signed_text;
}
self::storeForUser($itemid, $item, $uid);
}
}
/**
* @brief Store public items for the receivers
*
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* @param integer $itemid Item ID that should be added
* @param array $item The item entry that will be stored
* @param integer $uid The user that will receive the item entry
*/
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private static function storeForUser($itemid, $item, $uid)
{
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$item['uid'] = $uid;
$item['origin'] = 0;
$item['wall'] = 0;
if ($item['uri'] == $item['parent-uri']) {
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$item['contact-id'] = Contact::getIdForURL($item['owner-link'], $uid);
} else {
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$item['contact-id'] = Contact::getIdForURL($item['author-link'], $uid);
}
if (empty($item['contact-id'])) {
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$self = dba::selectFirst('contact', ['id'], ['self' => true, 'uid' => $uid]);
if (!DBM::is_result($self)) {
return;
}
$item['contact-id'] = $self['id'];
}
if (in_array($item['type'], ["net-comment", "wall-comment"])) {
$item['type'] = 'remote-comment';
} elseif ($item['type'] == 'wall') {
$item['type'] = 'remote';
}
/// @todo Handling of "event-id"
$notify = false;
if ($item['uri'] == $item['parent-uri']) {
$contact = dba::selectFirst('contact', [], ['id' => $item['contact-id'], 'self' => false]);
if (DBM::is_result($contact)) {
$notify = self::isRemoteSelf($contact, $item);
}
}
$distributed = self::insert($item, false, $notify, true);
if (!$distributed) {
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logger("Distributed public item " . $itemid . " for user " . $uid . " wasn't stored", LOGGER_DEBUG);
} else {
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logger("Distributed public item " . $itemid . " for user " . $uid . " with id " . $distributed, LOGGER_DEBUG);
}
}
/**
* @brief Add a shadow entry for a given item id that is a thread starter
*
* We store every public item entry additionally with the user id "0".
* This is used for the community page and for the search.
* It is planned that in the future we will store public item entries only once.
*
* @param integer $itemid Item ID that should be added
*/
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public static function addShadow($itemid)
{
$fields = ['uid', 'private', 'moderated', 'visible', 'deleted', 'network'];
$condition = ['id' => $itemid, 'parent' => [0, $itemid]];
$item = dba::selectFirst('item', $fields, $condition);
if (!DBM::is_result($item)) {
return;
}
// is it already a copy?
if (($itemid == 0) || ($item['uid'] == 0)) {
return;
}
// Is it a visible public post?
if (!$item["visible"] || $item["deleted"] || $item["moderated"] || $item["private"]) {
return;
}
// is it an entry from a connector? Only add an entry for natively connected networks
if (!in_array($item["network"], [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""])) {
return;
}
$item = dba::selectFirst('item', [], ['id' => $itemid]);
if (DBM::is_result($item) && ($item["allow_cid"] == '') && ($item["allow_gid"] == '') &&
($item["deny_cid"] == '') && ($item["deny_gid"] == '')) {
if (!dba::exists('item', ['uri' => $item['uri'], 'uid' => 0])) {
// Preparing public shadow (removing user specific data)
$item['uid'] = 0;
unset($item['id']);
unset($item['parent']);
unset($item['wall']);
unset($item['mention']);
unset($item['origin']);
unset($item['starred']);
unset($item['rendered-hash']);
unset($item['rendered-html']);
if ($item['uri'] == $item['parent-uri']) {
$item['contact-id'] = Contact::getIdForURL($item['owner-link']);
} else {
$item['contact-id'] = Contact::getIdForURL($item['author-link']);
}
if (in_array($item['type'], ["net-comment", "wall-comment"])) {
$item['type'] = 'remote-comment';
} elseif ($item['type'] == 'wall') {
$item['type'] = 'remote';
}
$public_shadow = self::insert($item, false, false, true);
logger("Stored public shadow for thread ".$itemid." under id ".$public_shadow, LOGGER_DEBUG);
}
}
}
/**
* @brief Add a shadow entry for a given item id that is a comment
*
* This function does the same like the function above - but for comments
*
* @param integer $itemid Item ID that should be added
*/
public static function addShadowPost($itemid)
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{
$item = dba::selectFirst('item', [], ['id' => $itemid]);
if (!DBM::is_result($item)) {
return;
}
// Is it a toplevel post?
if ($item['id'] == $item['parent']) {
self::addShadow($itemid);
return;
}
// Is this a shadow entry?
if ($item['uid'] == 0) {
return;
}
// Is there a shadow parent?
if (!dba::exists('item', ['uri' => $item['parent-uri'], 'uid' => 0])) {
return;
}
// Is there already a shadow entry?
if (dba::exists('item', ['uri' => $item['uri'], 'uid' => 0])) {
return;
}
// Save "origin" and "parent" state
$origin = $item['origin'];
$parent = $item['parent'];
// Preparing public shadow (removing user specific data)
$item['uid'] = 0;
unset($item['id']);
unset($item['parent']);
unset($item['wall']);
unset($item['mention']);
unset($item['origin']);
unset($item['starred']);
unset($item['rendered-hash']);
unset($item['rendered-html']);
$item['contact-id'] = Contact::getIdForURL($item['author-link']);
if (in_array($item['type'], ["net-comment", "wall-comment"])) {
$item['type'] = 'remote-comment';
} elseif ($item['type'] == 'wall') {
$item['type'] = 'remote';
}
$public_shadow = self::insert($item, false, false, true);
logger("Stored public shadow for comment ".$item['uri']." under id ".$public_shadow, LOGGER_DEBUG);
// If this was a comment to a Diaspora post we don't get our comment back.
// This means that we have to distribute the comment by ourselves.
if ($origin && dba::exists('item', ['id' => $parent, 'network' => NETWORK_DIASPORA])) {
self::distribute($public_shadow);
}
}
/**
* Adds a "lang" specification in a "postopts" element of given $arr,
* if possible and not already present.
* Expects "body" element to exist in $arr.
*/
private static function addLanguageInPostopts(&$item)
{
$postopts = "";
if (!empty($item['postopts'])) {
if (strstr($item['postopts'], 'lang=')) {
// do not override
return;
}
$postopts = $item['postopts'];
}
$naked_body = Text\BBCode::toPlaintext($item['body'], false);
$languages = (new Text_LanguageDetect())->detect($naked_body, 3);
if (sizeof($languages) > 0) {
if ($postopts != '') {
$postopts .= '&'; // arbitrary separator, to be reviewed
}
$postopts .= 'lang=';
$sep = "";
foreach ($languages as $language => $score) {
$postopts .= $sep . $language . ";" . $score;
$sep = ':';
}
$item['postopts'] = $postopts;
}
}
/**
* @brief Creates an unique guid out of a given uri
*
* @param string $uri uri of an item entry
* @param string $host hostname for the GUID prefix
* @return string unique guid
*/
public static function guidFromUri($uri, $host)
{
// Our regular guid routine is using this kind of prefix as well
// We have to avoid that different routines could accidentally create the same value
$parsed = parse_url($uri);
// We use a hash of the hostname as prefix for the guid
$guid_prefix = hash("crc32", $host);
// Remove the scheme to make sure that "https" and "http" doesn't make a difference
unset($parsed["scheme"]);
// Glue it together to be able to make a hash from it
$host_id = implode("/", $parsed);
// We could use any hash algorithm since it isn't a security issue
$host_hash = hash("ripemd128", $host_id);
return $guid_prefix.$host_hash;
}
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/**
* generate an unique URI
*
* @param integer $uid User id
* @param string $guid An existing GUID (Otherwise it will be generated)
*
* @return string
*/
public static function newURI($uid, $guid = "")
{
if ($guid == "") {
$guid = get_guid(32);
}
$hostname = self::getApp()->get_hostname();
$user = dba::selectFirst('user', ['nickname'], ['uid' => $uid]);
$uri = "urn:X-dfrn:" . $hostname . ':' . $user['nickname'] . ':' . $guid;
return $uri;
}
/**
* @brief Set "success_update" and "last-item" to the date of the last time we heard from this contact
*
* This can be used to filter for inactive contacts.
* Only do this for public postings to avoid privacy problems, since poco data is public.
* Don't set this value if it isn't from the owner (could be an author that we don't know)
*
* @param array $arr Contains the just posted item record
*/
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private static function updateContact($arr)
{
// Unarchive the author
$contact = dba::selectFirst('contact', [], ['id' => $arr["author-id"]]);
if (DBM::is_result($contact)) {
Contact::unmarkForArchival($contact);
}
// Unarchive the contact if it's not our own contact
$contact = dba::selectFirst('contact', [], ['id' => $arr["contact-id"], 'self' => false]);
if (DBM::is_result($contact)) {
Contact::unmarkForArchival($contact);
}
$update = (!$arr['private'] && (($arr["author-link"] === $arr["owner-link"]) || ($arr["parent-uri"] === $arr["uri"])));
// Is it a forum? Then we don't care about the rules from above
if (!$update && ($arr["network"] == NETWORK_DFRN) && ($arr["parent-uri"] === $arr["uri"])) {
if (dba::exists('contact', ['id' => $arr['contact-id'], 'forum' => true])) {
$update = true;
}
}
if ($update) {
dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
['id' => $arr['contact-id']]);
}
// Now do the same for the system wide contacts with uid=0
if (!$arr['private']) {
dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
['id' => $arr['owner-id']]);
if ($arr['owner-id'] != $arr['author-id']) {
dba::update('contact', ['success_update' => $arr['received'], 'last-item' => $arr['received']],
['id' => $arr['author-id']]);
}
}
}
public static function setHashtags(&$item)
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{
$tags = get_tags($item["body"]);
// No hashtags?
if (!count($tags)) {
return false;
}
// This sorting is important when there are hashtags that are part of other hashtags
// Otherwise there could be problems with hashtags like #test and #test2
rsort($tags);
$URLSearchString = "^\[\]";
// All hashtags should point to the home server if "local_tags" is activated
if (Config::get('system', 'local_tags')) {
$item["body"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
"#[url=".System::baseUrl()."/search?tag=$2]$2[/url]", $item["body"]);
$item["tag"] = preg_replace("/#\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
"#[url=".System::baseUrl()."/search?tag=$2]$2[/url]", $item["tag"]);
}
// mask hashtags inside of url, bookmarks and attachments to avoid urls in urls
$item["body"] = preg_replace_callback("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
function ($match) {
return ("[url=" . str_replace("#", "&num;", $match[1]) . "]" . str_replace("#", "&num;", $match[2]) . "[/url]");
}, $item["body"]);
$item["body"] = preg_replace_callback("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism",
function ($match) {
return ("[bookmark=" . str_replace("#", "&num;", $match[1]) . "]" . str_replace("#", "&num;", $match[2]) . "[/bookmark]");
}, $item["body"]);
$item["body"] = preg_replace_callback("/\[attachment (.*)\](.*?)\[\/attachment\]/ism",
function ($match) {
return ("[attachment " . str_replace("#", "&num;", $match[1]) . "]" . $match[2] . "[/attachment]");
}, $item["body"]);
// Repair recursive urls
$item["body"] = preg_replace("/&num;\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
"&num;$2", $item["body"]);
foreach ($tags as $tag) {
if ((strpos($tag, '#') !== 0) || strpos($tag, '[url=')) {
continue;
}
$basetag = str_replace('_',' ',substr($tag,1));
$newtag = '#[url=' . System::baseUrl() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
$item["body"] = str_replace($tag, $newtag, $item["body"]);
if (!stristr($item["tag"], "/search?tag=" . $basetag . "]" . $basetag . "[/url]")) {
if (strlen($item["tag"])) {
$item["tag"] = ','.$item["tag"];
}
$item["tag"] = $newtag.$item["tag"];
}
}
// Convert back the masked hashtags
$item["body"] = str_replace("&num;", "#", $item["body"]);
}
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public static function getGuidById($id)
{
$item = dba::selectFirst('item', ['guid'], ['id' => $id]);
if (DBM::is_result($item)) {
return $item['guid'];
} else {
return '';
}
}
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public static function getIdAndNickByGuid($guid, $uid = 0)
{
$nick = "";
$id = 0;
if ($uid == 0) {
$uid == local_user();
}
// Does the given user have this item?
if ($uid) {
$item = dba::fetch_first("SELECT `item`.`id`, `user`.`nickname` FROM `item`
INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
AND `item`.`guid` = ? AND `item`.`uid` = ?", $guid, $uid);
if (DBM::is_result($item)) {
$id = $item["id"];
$nick = $item["nickname"];
}
}
// Or is it anywhere on the server?
if ($nick == "") {
$item = dba::fetch_first("SELECT `item`.`id`, `user`.`nickname` FROM `item`
INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
AND `item`.`allow_cid` = '' AND `item`.`allow_gid` = ''
AND `item`.`deny_cid` = '' AND `item`.`deny_gid` = ''
AND NOT `item`.`private` AND `item`.`wall`
AND `item`.`guid` = ?", $guid);
if (DBM::is_result($item)) {
$id = $item["id"];
$nick = $item["nickname"];
}
}
return ["nick" => $nick, "id" => $id];
}
/**
* look for mention tags and setup a second delivery chain for forum/community posts if appropriate
* @param int $uid
* @param int $item_id
* @return bool true if item was deleted, else false
*/
private static function tagDeliver($uid, $item_id)
{
$mention = false;
$user = dba::selectFirst('user', [], ['uid' => $uid]);
if (!DBM::is_result($user)) {
return;
}
$community_page = (($user['page-flags'] == PAGE_COMMUNITY) ? true : false);
$prvgroup = (($user['page-flags'] == PAGE_PRVGROUP) ? true : false);
$item = dba::selectFirst('item', [], ['id' => $item_id]);
if (!DBM::is_result($item)) {
return;
}
$link = normalise_link(System::baseUrl() . '/profile/' . $user['nickname']);
/*
* Diaspora uses their own hardwired link URL in @-tags
* instead of the one we supply with webfinger
*/
$dlink = normalise_link(System::baseUrl() . '/u/' . $user['nickname']);
$cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism', $item['body'], $matches, PREG_SET_ORDER);
if ($cnt) {
foreach ($matches as $mtch) {
if (link_compare($link, $mtch[1]) || link_compare($dlink, $mtch[1])) {
$mention = true;
logger('mention found: ' . $mtch[2]);
}
}
}
if (!$mention) {
if (($community_page || $prvgroup) &&
!$item['wall'] && !$item['origin'] && ($item['id'] == $item['parent'])) {
// mmh.. no mention.. community page or private group... no wall.. no origin.. top-post (not a comment)
// delete it!
logger("no-mention top-level post to community or private group. delete.");
dba::delete('item', ['id' => $item_id]);
return true;
}
return;
}
$arr = ['item' => $item, 'user' => $user];
Addon::callHooks('tagged', $arr);
if (!$community_page && !$prvgroup) {
return;
}
/*
* tgroup delivery - setup a second delivery chain
* prevent delivery looping - only proceed
* if the message originated elsewhere and is a top-level post
*/
if ($item['wall'] || $item['origin'] || ($item['id'] != $item['parent'])) {
return;
}
// now change this copy of the post to a forum head message and deliver to all the tgroup members
$self = dba::selectFirst('contact', ['id', 'name', 'url', 'thumb'], ['uid' => $uid, 'self' => true]);
if (!DBM::is_result($self)) {
return;
}
$owner_id = Contact::getIdForURL($self['url']);
// also reset all the privacy bits to the forum default permissions
$private = ($user['allow_cid'] || $user['allow_gid'] || $user['deny_cid'] || $user['deny_gid']) ? 1 : 0;
$forum_mode = ($prvgroup ? 2 : 1);
$fields = ['wall' => true, 'origin' => true, 'forum_mode' => $forum_mode, 'contact-id' => $self['id'],
'owner-id' => $owner_id, 'owner-link' => $self['url'], 'private' => $private, 'allow_cid' => $user['allow_cid'],
'allow_gid' => $user['allow_gid'], 'deny_cid' => $user['deny_cid'], 'deny_gid' => $user['deny_gid']];
dba::update('item', $fields, ['id' => $item_id]);
self::updateThread($item_id);
Worker::add(['priority' => PRIORITY_HIGH, 'dont_fork' => true], 'Notifier', 'tgroup', $item_id);
}
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public static function isRemoteSelf($contact, &$datarray)
{
$a = get_app();
if (!$contact['remote_self']) {
return false;
}
// Prevent the forwarding of posts that are forwarded
if ($datarray["extid"] == NETWORK_DFRN) {
logger('Already forwarded', LOGGER_DEBUG);
return false;
}
// Prevent to forward already forwarded posts
if ($datarray["app"] == $a->get_hostname()) {
logger('Already forwarded (second test)', LOGGER_DEBUG);
return false;
}
// Only forward posts
if ($datarray["verb"] != ACTIVITY_POST) {
logger('No post', LOGGER_DEBUG);
return false;
}
if (($contact['network'] != NETWORK_FEED) && $datarray['private']) {
logger('Not public', LOGGER_DEBUG);
return false;
}
$datarray2 = $datarray;
logger('remote-self start - Contact '.$contact['url'].' - '.$contact['remote_self'].' Item '.print_r($datarray, true), LOGGER_DEBUG);
if ($contact['remote_self'] == 2) {
$self = dba::selectFirst('contact', ['id', 'name', 'url', 'thumb'],
['uid' => $contact['uid'], 'self' => true]);
if (DBM::is_result($self)) {
$datarray['contact-id'] = $self["id"];
$datarray['owner-name'] = $self["name"];
$datarray['owner-link'] = $self["url"];
$datarray['owner-avatar'] = $self["thumb"];
$datarray['author-name'] = $datarray['owner-name'];
$datarray['author-link'] = $datarray['owner-link'];
$datarray['author-avatar'] = $datarray['owner-avatar'];
unset($datarray['created']);
unset($datarray['edited']);
unset($datarray['network']);
unset($datarray['owner-id']);
unset($datarray['author-id']);
}
if ($contact['network'] != NETWORK_FEED) {
$datarray["guid"] = get_guid(32);
unset($datarray["plink"]);
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$datarray["uri"] = self::newURI($contact['uid'], $datarray["guid"]);
$datarray["parent-uri"] = $datarray["uri"];
$datarray["thr-parent"] = $datarray["uri"];
$datarray["extid"] = NETWORK_DFRN;
$urlpart = parse_url($datarray2['author-link']);
$datarray["app"] = $urlpart["host"];
} else {
$datarray['private'] = 0;
}
}
if ($contact['network'] != NETWORK_FEED) {
// Store the original post
$result = self::insert($datarray2, false, false);
logger('remote-self post original item - Contact '.$contact['url'].' return '.$result.' Item '.print_r($datarray2, true), LOGGER_DEBUG);
} else {
$datarray["app"] = "Feed";
$result = true;
}
// Trigger automatic reactions for addons
$datarray['api_source'] = true;
// We have to tell the hooks who we are - this really should be improved
$_SESSION["authenticated"] = true;
$_SESSION["uid"] = $contact['uid'];
return $result;
}
/**
*
* @param string $s
* @param int $uid
* @param array $item
* @param int $cid
* @return string
*/
public static function fixPrivatePhotos($s, $uid, $item = null, $cid = 0)
{
if (Config::get('system', 'disable_embedded')) {
return $s;
}
logger('check for photos', LOGGER_DEBUG);
$site = substr(System::baseUrl(), strpos(System::baseUrl(), '://'));
$orig_body = $s;
$new_body = '';
$img_start = strpos($orig_body, '[img');
$img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
$img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
while (($img_st_close !== false) && ($img_len !== false)) {
$img_st_close++; // make it point to AFTER the closing bracket
$image = substr($orig_body, $img_start + $img_st_close, $img_len);
logger('found photo ' . $image, LOGGER_DEBUG);
if (stristr($image, $site . '/photo/')) {
// Only embed locally hosted photos
$replace = false;
$i = basename($image);
$i = str_replace(['.jpg', '.png', '.gif'], ['', '', ''], $i);
$x = strpos($i, '-');
if ($x) {
$res = substr($i, $x + 1);
$i = substr($i, 0, $x);
$fields = ['data', 'type', 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid'];
$photo = dba::selectFirst('photo', $fields, ['resource-id' => $i, 'scale' => $res, 'uid' => $uid]);
if (DBM::is_result($photo)) {
/*
* Check to see if we should replace this photo link with an embedded image
* 1. No need to do so if the photo is public
* 2. If there's a contact-id provided, see if they're in the access list
* for the photo. If so, embed it.
* 3. Otherwise, if we have an item, see if the item permissions match the photo
* permissions, regardless of order but first check to see if they're an exact
* match to save some processing overhead.
*/
if (self::hasPermissions($photo)) {
if ($cid) {
$recips = self::enumeratePermissions($photo);
if (in_array($cid, $recips)) {
$replace = true;
}
} elseif ($item) {
if (self::samePermissions($item, $photo)) {
$replace = true;
}
}
}
if ($replace) {
$data = $photo['data'];
$type = $photo['type'];
// If a custom width and height were specified, apply before embedding
if (preg_match("/\[img\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
logger('scaling photo', LOGGER_DEBUG);
$width = intval($match[1]);
$height = intval($match[2]);
$Image = new Image($data, $type);
if ($Image->isValid()) {
$Image->scaleDown(max($width, $height));
$data = $Image->asString();
$type = $Image->getType();
}
}
logger('replacing photo', LOGGER_DEBUG);
$image = 'data:' . $type . ';base64,' . base64_encode($data);
logger('replaced: ' . $image, LOGGER_DATA);
}
}
}
}
$new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/img]';
$orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/img]'));
if ($orig_body === false) {
$orig_body = '';
}
$img_start = strpos($orig_body, '[img');
$img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
$img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
}
$new_body = $new_body . $orig_body;
return $new_body;
}
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private static function hasPermissions($obj)
{
return (
(
x($obj, 'allow_cid')
) || (
x($obj, 'allow_gid')
) || (
x($obj, 'deny_cid')
) || (
x($obj, 'deny_gid')
)
);
}
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private static function samePermissions($obj1, $obj2)
{
// first part is easy. Check that these are exactly the same.
if (($obj1['allow_cid'] == $obj2['allow_cid'])
&& ($obj1['allow_gid'] == $obj2['allow_gid'])
&& ($obj1['deny_cid'] == $obj2['deny_cid'])
&& ($obj1['deny_gid'] == $obj2['deny_gid'])) {
return true;
}
// This is harder. Parse all the permissions and compare the resulting set.
$recipients1 = self::enumeratePermissions($obj1);
$recipients2 = self::enumeratePermissions($obj2);
sort($recipients1);
sort($recipients2);
/// @TODO Comparison of arrays, maybe use array_diff_assoc() here?
return ($recipients1 == $recipients2);
}
// returns an array of contact-ids that are allowed to see this object
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private static function enumeratePermissions($obj)
{
$allow_people = expand_acl($obj['allow_cid']);
$allow_groups = Group::expand(expand_acl($obj['allow_gid']));
$deny_people = expand_acl($obj['deny_cid']);
$deny_groups = Group::expand(expand_acl($obj['deny_gid']));
$recipients = array_unique(array_merge($allow_people, $allow_groups));
$deny = array_unique(array_merge($deny_people, $deny_groups));
$recipients = array_diff($recipients, $deny);
return $recipients;
}
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public static function getFeedTags($item)
{
$ret = [];
$matches = false;
$cnt = preg_match_all('|\#\[url\=(.*?)\](.*?)\[\/url\]|', $item['tag'], $matches);
if ($cnt) {
for ($x = 0; $x < $cnt; $x ++) {
if ($matches[1][$x]) {
$ret[$matches[2][$x]] = ['#', $matches[1][$x], $matches[2][$x]];
}
}
}
$matches = false;
$cnt = preg_match_all('|\@\[url\=(.*?)\](.*?)\[\/url\]|', $item['tag'], $matches);
if ($cnt) {
for ($x = 0; $x < $cnt; $x ++) {
if ($matches[1][$x]) {
$ret[] = ['@', $matches[1][$x], $matches[2][$x]];
}
}
}
return $ret;
}
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public static function expire($uid, $days, $network = "", $force = false)
{
if (!$uid || ($days < 1)) {
return;
}
/*
* $expire_network_only = save your own wall posts
* and just expire conversations started by others
*/
$expire_network_only = PConfig::get($uid,'expire', 'network_only');
$sql_extra = (intval($expire_network_only) ? " AND wall = 0 " : "");
if ($network != "") {
$sql_extra .= sprintf(" AND network = '%s' ", dbesc($network));
/*
* There is an index "uid_network_received" but not "uid_network_created"
* This avoids the creation of another index just for one purpose.
* And it doesn't really matter wether to look at "received" or "created"
*/
$range = "AND `received` < UTC_TIMESTAMP() - INTERVAL %d DAY ";
} else {
$range = "AND `created` < UTC_TIMESTAMP() - INTERVAL %d DAY ";
}
$r = q("SELECT `file`, `resource-id`, `starred`, `type`, `id` FROM `item`
WHERE `uid` = %d $range
AND `id` = `parent`
$sql_extra
AND `deleted` = 0",
intval($uid),
intval($days)
);
if (!DBM::is_result($r)) {
return;
}
$expire_items = PConfig::get($uid, 'expire', 'items', 1);
// Forcing expiring of items - but not notes and marked items
if ($force) {
$expire_items = true;
}
$expire_notes = PConfig::get($uid, 'expire', 'notes', 1);
$expire_starred = PConfig::get($uid, 'expire', 'starred', 1);
$expire_photos = PConfig::get($uid, 'expire', 'photos', 0);
logger('User '.$uid.': expire: # items=' . count($r). "; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
foreach ($r as $item) {
// don't expire filed items
if (strpos($item['file'],'[') !== false) {
continue;
}
// Only expire posts, not photos and photo comments
if ($expire_photos == 0 && strlen($item['resource-id'])) {
continue;
} elseif ($expire_starred == 0 && intval($item['starred'])) {
continue;
} elseif ($expire_notes == 0 && $item['type'] == 'note') {
continue;
} elseif ($expire_items == 0 && $item['type'] != 'note') {
continue;
}
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self::deleteById($item['id'], PRIORITY_LOW);
}
}
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public static function firstPostDate($uid, $wall = false)
{
$condition = ['uid' => $uid, 'wall' => $wall, 'deleted' => false, 'visible' => true, 'moderated' => false];
$params = ['order' => ['created' => false]];
$thread = dba::selectFirst('thread', ['created'], $condition, $params);
if (DBM::is_result($thread)) {
return substr(DateTimeFormat::local($thread['created']), 0, 10);
}
return false;
}
/**
* @brief add/remove activity to an item
*
* Toggle activities as like,dislike,attend of an item
*
* @param string $item_id
* @param string $verb
* Activity verb. One of
* like, unlike, dislike, undislike, attendyes, unattendyes,
* attendno, unattendno, attendmaybe, unattendmaybe
* @hook 'post_local_end'
* array $arr
* 'post_id' => ID of posted item
*/
public static function performLike($item_id, $verb)
{
if (!local_user() && !remote_user()) {
return false;
}
switch ($verb) {
case 'like':
case 'unlike':
$bodyverb = L10n::t('%1$s likes %2$s\'s %3$s');
$activity = ACTIVITY_LIKE;
break;
case 'dislike':
case 'undislike':
$bodyverb = L10n::t('%1$s doesn\'t like %2$s\'s %3$s');
$activity = ACTIVITY_DISLIKE;
break;
case 'attendyes':
case 'unattendyes':
$bodyverb = L10n::t('%1$s is attending %2$s\'s %3$s');
$activity = ACTIVITY_ATTEND;
break;
case 'attendno':
case 'unattendno':
$bodyverb = L10n::t('%1$s is not attending %2$s\'s %3$s');
$activity = ACTIVITY_ATTENDNO;
break;
case 'attendmaybe':
case 'unattendmaybe':
$bodyverb = L10n::t('%1$s may attend %2$s\'s %3$s');
$activity = ACTIVITY_ATTENDMAYBE;
break;
default:
logger('like: unknown verb ' . $verb . ' for item ' . $item_id);
return false;
}
// Enable activity toggling instead of on/off
$event_verb_flag = $activity === ACTIVITY_ATTEND || $activity === ACTIVITY_ATTENDNO || $activity === ACTIVITY_ATTENDMAYBE;
logger('like: verb ' . $verb . ' item ' . $item_id);
$item = dba::selectFirst('item', [], ['`id` = ? OR `uri` = ?', $item_id, $item_id]);
if (!DBM::is_result($item)) {
logger('like: unknown item ' . $item_id);
return false;
}
$uid = $item['uid'];
if (($uid == 0) && local_user()) {
$uid = local_user();
}
if (!can_write_wall($uid)) {
logger('like: unable to write on wall ' . $uid);
return false;
}
// Retrieves the local post owner
$owner_self_contact = dba::selectFirst('contact', [], ['uid' => $uid, 'self' => true]);
if (!DBM::is_result($owner_self_contact)) {
logger('like: unknown owner ' . $uid);
return false;
}
// Retrieve the current logged in user's public contact
$author_id = public_contact();
$author_contact = dba::selectFirst('contact', [], ['id' => $author_id]);
if (!DBM::is_result($author_contact)) {
logger('like: unknown author ' . $author_id);
return false;
}
// Contact-id is the uid-dependant author contact
if (local_user() == $uid) {
$item_contact_id = $owner_self_contact['id'];
$item_contact = $owner_self_contact;
} else {
$item_contact_id = Contact::getIdForURL($author_contact['url'], $uid, true);
$item_contact = dba::selectFirst('contact', [], ['id' => $item_contact_id]);
if (!DBM::is_result($item_contact)) {
logger('like: unknown item contact ' . $item_contact_id);
return false;
}
}
// Look for an existing verb row
// event participation are essentially radio toggles. If you make a subsequent choice,
// we need to eradicate your first choice.
if ($event_verb_flag) {
$verbs = "'" . dbesc(ACTIVITY_ATTEND) . "', '" . dbesc(ACTIVITY_ATTENDNO) . "', '" . dbesc(ACTIVITY_ATTENDMAYBE) . "'";
} else {
$verbs = "'".dbesc($activity)."'";
}
/// @todo This query is expected to be a performance eater due to the "OR" - it has to be changed totally
$existing_like = q("SELECT `id`, `guid`, `verb` FROM `item`
WHERE `verb` IN ($verbs)
AND `deleted` = 0
AND `author-id` = %d
AND `uid` = %d
AND (`parent` = '%s' OR `parent-uri` = '%s' OR `thr-parent` = '%s')
LIMIT 1",
intval($author_contact['id']),
intval($item['uid']),
dbesc($item_id), dbesc($item_id), dbesc($item['uri'])
);
// If it exists, mark it as deleted
if (DBM::is_result($existing_like)) {
$like_item = $existing_like[0];
// Already voted, undo it
$fields = ['deleted' => true, 'unseen' => true, 'changed' => DateTimeFormat::utcNow()];
dba::update('item', $fields, ['id' => $like_item['id']]);
// Clean up the Diaspora signatures for this like
// Go ahead and do it even if Diaspora support is disabled. We still want to clean up
// if it had been enabled in the past
dba::delete('sign', ['iid' => $like_item['id']]);
$like_item_id = $like_item['id'];
Worker::add(PRIORITY_HIGH, "Notifier", "like", $like_item_id);
if (!$event_verb_flag || $like_item['verb'] == $activity) {
return true;
}
}
// Verb is "un-something", just trying to delete existing entries
if (strpos($verb, 'un') === 0) {
return true;
}
// Else or if event verb different from existing row, create a new item row
$post_type = (($item['resource-id']) ? L10n::t('photo') : L10n::t('status'));
if ($item['object-type'] === ACTIVITY_OBJ_EVENT) {
$post_type = L10n::t('event');
}
$objtype = $item['resource-id'] ? ACTIVITY_OBJ_IMAGE : ACTIVITY_OBJ_NOTE ;
$link = xmlify('<link rel="alternate" type="text/html" href="' . System::baseUrl() . '/display/' . $owner_self_contact['nick'] . '/' . $item['id'] . '" />' . "\n") ;
$body = $item['body'];
$obj = <<< EOT
<object>
<type>$objtype</type>
<local>1</local>
<id>{$item['uri']}</id>
<link>$link</link>
<title></title>
<content>$body</content>
</object>
EOT;
$ulink = '[url=' . $author_contact['url'] . ']' . $author_contact['name'] . '[/url]';
$alink = '[url=' . $item['author-link'] . ']' . $item['author-name'] . '[/url]';
$plink = '[url=' . System::baseUrl() . '/display/' . $owner_self_contact['nick'] . '/' . $item['id'] . ']' . $post_type . '[/url]';
$new_item = [
'guid' => get_guid(32),
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'uri' => self::newURI($item['uid']),
'uid' => $item['uid'],
'contact-id' => $item_contact_id,
'type' => 'activity',
'wall' => $item['wall'],
'origin' => 1,
'gravity' => GRAVITY_LIKE,
'parent' => $item['id'],
'parent-uri' => $item['uri'],
'thr-parent' => $item['uri'],
'owner-id' => $item['owner-id'],
'owner-name' => $item['owner-name'],
'owner-link' => $item['owner-link'],
'owner-avatar' => $item['owner-avatar'],
'author-id' => $author_contact['id'],
'author-name' => $author_contact['name'],
'author-link' => $author_contact['url'],
'author-avatar' => $author_contact['thumb'],
'body' => sprintf($bodyverb, $ulink, $alink, $plink),
'verb' => $activity,
'object-type' => $objtype,
'object' => $obj,
'allow_cid' => $item['allow_cid'],
'allow_gid' => $item['allow_gid'],
'deny_cid' => $item['deny_cid'],
'deny_gid' => $item['deny_gid'],
'visible' => 1,
'unseen' => 1,
];
$new_item_id = self::insert($new_item);
// If the parent item isn't visible then set it to visible
if (!$item['visible']) {
self::update(['visible' => true], ['id' => $item['id']]);
}
// Save the author information for the like in case we need to relay to Diaspora
Diaspora::storeLikeSignature($item_contact, $new_item_id);
$new_item['id'] = $new_item_id;
Addon::callHooks('post_local_end', $new_item);
Worker::add(PRIORITY_HIGH, "Notifier", "like", $new_item_id);
return true;
}
private static function addThread($itemid, $onlyshadow = false)
{
$fields = ['uid', 'created', 'edited', 'commented', 'received', 'changed', 'wall', 'private', 'pubmail',
'moderated', 'visible', 'starred', 'bookmark', 'contact-id',
'deleted', 'origin', 'forum_mode', 'mention', 'network', 'author-id', 'owner-id'];
$condition = ["`id` = ? AND (`parent` = ? OR `parent` = 0)", $itemid, $itemid];
$item = dba::selectFirst('item', $fields, $condition);
if (!DBM::is_result($item)) {
return;
}
$item['iid'] = $itemid;
if (!$onlyshadow) {
$result = dba::insert('thread', $item);
logger("Add thread for item ".$itemid." - ".print_r($result, true), LOGGER_DEBUG);
}
}
private static function updateThread($itemid, $setmention = false)
{
$fields = ['uid', 'guid', 'title', 'body', 'created', 'edited', 'commented', 'received', 'changed',
'wall', 'private', 'pubmail', 'moderated', 'visible', 'starred', 'bookmark', 'contact-id',
'deleted', 'origin', 'forum_mode', 'network', 'author-id', 'owner-id', 'rendered-html', 'rendered-hash'];
$condition = ["`id` = ? AND (`parent` = ? OR `parent` = 0)", $itemid, $itemid];
$item = dba::selectFirst('item', $fields, $condition);
if (!DBM::is_result($item)) {
return;
}
if ($setmention) {
$item["mention"] = 1;
}
$sql = "";
$fields = [];
foreach ($item as $field => $data) {
if (!in_array($field, ["guid", "title", "body", "rendered-html", "rendered-hash"])) {
$fields[$field] = $data;
}
}
$result = dba::update('thread', $fields, ['iid' => $itemid]);
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logger("Update thread for item ".$itemid." - guid ".$item["guid"]." - ".(int)$result, LOGGER_DEBUG);
// Updating a shadow item entry
$items = dba::selectFirst('item', ['id'], ['guid' => $item['guid'], 'uid' => 0]);
if (!DBM::is_result($items)) {
return;
}
$fields = ['title' => $item['title'], 'body' => $item['body'],
'rendered-html' => $item['rendered-html'], 'rendered-hash' => $item['rendered-hash']];
$result = dba::update('item', $fields, ['id' => $items['id']]);
logger("Updating public shadow for post ".$items["id"]." - guid ".$item["guid"]." Result: ".print_r($result, true), LOGGER_DEBUG);
}
private static function deleteThread($itemid, $itemuri = "")
{
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$item = dba::selectFirst('thread', ['uid'], ['iid' => $itemid]);
if (!DBM::is_result($item)) {
logger('No thread found for id '.$itemid, LOGGER_DEBUG);
return;
}
// Using dba::delete at this time could delete the associated item entries
$result = dba::e("DELETE FROM `thread` WHERE `iid` = ?", $itemid);
logger("deleteThread: Deleted thread for item ".$itemid." - ".print_r($result, true), LOGGER_DEBUG);
if ($itemuri != "") {
$condition = ["`uri` = ? AND NOT `deleted` AND NOT (`uid` IN (?, 0))", $itemuri, $item["uid"]];
if (!dba::exists('item', $condition)) {
dba::delete('item', ['uri' => $itemuri, 'uid' => 0]);
logger("deleteThread: Deleted shadow for item ".$itemuri, LOGGER_DEBUG);
}
}
}
}