packagist/web/app.php

<?php

use Symfony\Component\HttpFoundation\Request;

/**
 * @var \Symfony\Component\ClassLoader\ClassLoader
 */
$loader = require __DIR__.'/../app/autoload.php';
include_once __DIR__.'/../app/bootstrap.php.cache';

$kernel = new AppKernel('prod', false);
$kernel->loadClassCache();

if (in_array($_SERVER['REMOTE_ADDR'], ['144.217.203.53', '54.38.136.239', '54.37.131.18', '142.44.164.249', '142.44.164.255', '54.37.2.184', '139.99.121.122', '54.37.4.73', '51.38.227.34'], true)) {
    Request::setTrustedProxies([$_SERVER['REMOTE_ADDR']]);
    // force all trusted header names
    Request::setTrustedHeaderName(Request::HEADER_FORWARDED, '');
    Request::setTrustedHeaderName(Request::HEADER_CLIENT_IP, 'X_REAL_IP');
    Request::setTrustedHeaderName(Request::HEADER_CLIENT_HOST, '');
    Request::setTrustedHeaderName(Request::HEADER_CLIENT_PROTO, '');
    Request::setTrustedHeaderName(Request::HEADER_CLIENT_PORT, '');
}

$request = Request::createFromGlobals();
$response = $kernel->handle($request);
$response->send();
$kernel->terminate($request, $response);