README

PSR-7 Middleware that determines the scheme, host and port from the 'X-Forwarded-Proto', 'X-Forwarded-Host' and 'X-Forwarded-Port' headers and updates the Request's Uri object.

You can set a list of proxies that are trusted as the second constructor parameter. If this list is set, then the proxy headers will only be checked if the REMOTE_ADDR is in the trusted list.

Installation

composer require semhoun/proxy-detection-middleware

Usage

In Slim 4:

use Psr\Http\Message\ServerRequestInterface as Request;
use Psr\Http\Server\RequestHandlerInterface as RequestHandler;
use Slim\Factory\AppFactory;
use Slim\Psr7\Response;

require __DIR__ . '/../vendor/autoload.php';

$app = AppFactory::create();

$trustedProxies = ['10.0.0.1', '10.0.0.2', '192.168.0.0/24'];
$app->add(new RKA\Middleware\ProxyDetection($trustedProxies));

$app->get('/', function (Request $request, Response $response, $args) {
    $scheme = $request->getUri()->getScheme();
    $host = $request->getUri()->getHost();
    $port = $request->getUri()->getPort();

    $response->getBody()->write('Real URI is ' . $scheme . '://' . $host . ':' . $port);
    return $response;
});

$app->run();

Testing

• Code coverage: $ vendor/bin/phpcs
• Unit tests: $ vendor/bin/phpunit