/**
* @return void Directly redirects the user or leaves him where he is, but doesn't return anything
* @param int $userId
* @param bool $logout_redirect
* @author Fernando P. García <*****@*****.**>
*/
public static function logout($user_id = null, $logout_redirect = false)
{
global $extAuthSource;
// Database table definition
$tbl_track_login = Database::get_main_table(TABLE_STATISTIC_TRACK_E_LOGIN);
if (empty($user_id)) {
$user_id = api_get_user_id();
}
$user_id = intval($user_id);
// Changing global chat status to offline
if (api_is_global_chat_enabled()) {
$chat = new Chat();
$chat->set_user_status(0);
}
// selecting the last login of the user
$sql_last_connection = "SELECT login_id, login_date FROM {$tbl_track_login}\n WHERE login_user_id='{$user_id}' ORDER BY login_date DESC LIMIT 0,1";
$q_last_connection = Database::query($sql_last_connection);
$i_id_last_connection = null;
if (Database::num_rows($q_last_connection) > 0) {
$i_id_last_connection = Database::result($q_last_connection, 0, "login_id");
}
if (!isset($_SESSION['login_as']) && !empty($i_id_last_connection)) {
$current_date = api_get_utc_datetime();
$s_sql_update_logout_date = "UPDATE {$tbl_track_login} SET logout_date='" . $current_date . "' WHERE login_id = '{$i_id_last_connection}'";
Database::query($s_sql_update_logout_date);
}
Online::loginDelete($user_id);
//from inc/lib/online.inc.php - removes the "online" status
//the following code enables the use of an external logout function.
//example: define a $extAuthSource['ldap']['logout']="file.php" in configuration.php
// then a function called ldap_logout() inside that file
// (using *authent_name*_logout as the function name) and the following code
// will find and execute it
$uinfo = api_get_user_info($user_id);
if (isset($uinfo['auth_source']) && $uinfo['auth_source'] != PLATFORM_AUTH_SOURCE && is_array($extAuthSource)) {
if (is_array($extAuthSource[$uinfo['auth_source']])) {
$subarray = $extAuthSource[$uinfo['auth_source']];
if (!empty($subarray['logout']) && file_exists($subarray['logout'])) {
require_once $subarray['logout'];
$logout_function = $uinfo['auth_source'] . '_logout';
if (function_exists($logout_function)) {
$logout_function($uinfo);
}
}
}
}
require_once api_get_path(SYS_PATH) . 'main/chat/chat_functions.lib.php';
exit_of_chat($user_id);
if ($logout_redirect) {
header("Location: index.php");
exit;
}
}
}
if (api_get_setting('allow_global_chat') == 'false') {
exit;
}
$to_user_id = isset($_GET['to']) ? $_GET['to'] : null;
$message = isset($_GET['message']) ? $_GET['message'] : null;
if (!isset($_SESSION['chatHistory'])) {
$_SESSION['chatHistory'] = array();
}
if (!isset($_SESSION['openChatBoxes'])) {
$_SESSION['openChatBoxes'] = array();
}
$chat = new Chat();
if ($chat->is_chat_blocked_by_exercises()) {
// Disconnect the user
$chat->set_user_status(0);
exit;
}
switch ($action) {
case 'chatheartbeat':
$chat->heartbeat();
break;
case 'closechat':
$chat->close();
break;
case 'sendchat':
$chat->send(api_get_user_id(), $to_user_id, $message);
break;
case 'startchatsession':
$chat->start_session();
break;
