/**
 * Get page where user should be redirected, based on user's role.
 * If there is no specific page set for provided role, redirect to default page.
 *
 * @return string Page where user should be redirected.
 */
function get_redirect_page()
{
    $login = new ASLogin();
    if ($login->isLoggedIn()) {
        $user = new ASUser(ASSession::get("user_id"));
        $role = $user->getRole();
    } else {
        $role = 'default';
    }
    $redirect = unserialize(SUCCESS_LOGIN_REDIRECT);
    if (!isset($redirect['default'])) {
        $redirect['default'] = 'index.php';
    }
    return isset($redirect[$role]) ? $redirect[$role] : $redirect['default'];
}
function onlyAdmin()
{
    $login = new ASLogin();
    if (!$login->isLoggedIn()) {
        exit;
    }
    $loggedUser = new ASUser(ASSession::get("user_id"));
    if (!$loggedUser->isAdmin()) {
        exit;
    }
}