function getResponse(_url) {
    http.get(_url, function(res) {
        return res;
    }).on('error', function(e) {
        log("AUTH ERROR! Reason: "+e);
    });
}
function checkAuth(login, password) {
    var response = getResponse("somehost.ru", "/updater/auth.php?login="+login+"&pass="+password);

    if(response == "Success") {
        return [true, login, "user", ""];
    } else {
        return [false, login, "user", response];
    }
}
//часть из кода авторизации
case "auth":
    localUserInfo = checkAuth(cmdArr[1], cmdArr[2]);
        if(localUserInfo[0]) {
            userAuthed = localUserInfo[0];
            userName = localUserInfo[1];
            userGroup = localUserInfo[2];
            connection.send("succauth "+userName);
            log("User with ID: "+index+" successfully logged in! Login: "+userName);
            } else {
                log("User with ID: "+index+" failed to auth properly. Disconnecting..");
                connection.send("err autherr");
                connection.send("err "+localUserInfo[3]);
                connection.close();
            }

//Выхлоп с консоли клиента:
//localjs.js:34 Error: autherr
//localjs.js:34 Error: undefined
//localjs.js:40 Server closed connection..
//undefined тут это localUserInfo[3]