<?php
define('STOP_STATISTICS',    true);
define('NO_AGENT_CHECK',     true);
define('DisableEventsCheck', true);

define('BX_SECURITY_SHOW_MESSAGE', true);

require_once($_SERVER["DOCUMENT_ROOT"]."/bitrix/modules/main/include/prolog_before.php");

CUtil::JSPostUnescape();

$arUser = \Bitrix\Main\UserTable::getList([
    'select' => ['ID', 'EMAIL', 'NAME', 'LAST_NAME', 'SECOND_NAME', 'SHORT_NAME'],
    'filter' => ['BX_USER_ID' => $_REQUEST['access-token']]
])->fetch();

echo json_encode( [
    'username' => $arUser['EMAIL'],
    'showUserName' => $arUser['SHORT_NAME'],
    'password' => md5($arUser['EMAIL']),
]);
die();