logout.php

<?php
/**
 * TestLink Open Source Project - http://testlink.sourceforge.net/
 * This script is distributed under the GNU General Public License 2 or later.
 *
 * @filesource	logout.php
 *
 *
 **/
require_once 'config.inc.php';
require_once 'common.php';
testlinkInitPage($db);

$args = init_args();
if ($args->userID) {
    logAuditEvent(TLS("audit_user_logout", $args->userName), "LOGOUT",
        $args->userID, "users");
}
session_unset();
session_destroy();

$authCfg = config_get('authentication');
if (isset($authCfg['SSO_enabled']) && $authCfg['SSO_enabled'] &&
    ! $args->ssodisable) {
    redirect($authCfg['SSO_logout_destination']);
} else {
    $std = "login.php?note=logout&viewer={$args->viewer}";
    $std .= $args->ssodisable ? "&ssodisable" : '';

    $xx = config_get('logoutUrl');
    $lo = is_null($xx) || trim($xx) == '' ? $std : $xx;
    redirect($lo);
}
exit();

/**
 * Initializes the arguments
 *
 * @return stdClass
 */
function init_args()
{
    $args = new stdClass();

    $args->userID = isset($_SESSION['userID']) ? $_SESSION['userID'] : null;
    $args->userName = $args->userID ? $_SESSION['currentUser']->getDisplayName() : "";

    $args->viewer = isset($_GET['viewer']) ? $_GET['viewer'] : '';
    $args->ssodisable = getSSODisable();

    return $args;
}