utils.php

<?php

$localeData = null;

function i8ln($word)
{
    global $locale;
    if ($locale == "en") {
        return $word;
    }

    global $localeData;
    if ($localeData == null) {
        $filepath = 'static/dist/locales/' . $locale . '.min.json';
        if (file_exists($filepath)) {
            $json_contents = file_get_contents($filepath);
            $localeData = json_decode($json_contents, true);
        } else {
            return $word;
        }
    }

    if (isset($localeData[$word])) {
        return $localeData[$word];
    } else {
        return $word;
    }
}

function setSessionCsrfToken()
{
    if (empty($_SESSION['token'])) {
        generateToken();
    }
}

function refreshCsrfToken()
{
    global $sessionLifetime;
    if (time() - $_SESSION['c'] > $sessionLifetime) {
        session_regenerate_id(true);
        generateToken();
    }
    return $_SESSION['token'];
}

function generateToken()
{
    $_SESSION['token'] = base64_encode(openssl_random_pseudo_bytes(32));
    $_SESSION['c'] = time();
}

function validateToken($token)
{
    global $enableCsrf;
    if ((!$enableCsrf) || ($enableCsrf && isset($token) && $token === $_SESSION['token'])) {
        return true;
    } else {
        return false;
    }
}