<?php

/*

 * This file is part of the Symfony package.

 *

 * (c) Fabien Potencier <fabien@symfony.com>

 *

 * For the full copyright and license information, please view the LICENSE

 * file that was distributed with this source code.

 */

namespace Symfony\Component\Security\Http\EntryPoint;

use Symfony\Component\Security\Core\Exception\AuthenticationException;

use Symfony\Component\Security\Http\EntryPoint\AuthenticationEntryPointInterface;

use Symfony\Component\HttpFoundation\Response;

use Symfony\Component\HttpFoundation\Request;

/**

 * BasicAuthenticationEntryPoint starts an HTTP Basic authentication.

 *

 * @author Fabien Potencier <fabien@symfony.com>

 */

class BasicAuthenticationEntryPoint implements AuthenticationEntryPointInterface

{

    private $realmName;

    public function __construct($realmName)

    {

        $this->realmName = $realmName;

    }

    public function start(Request $request, AuthenticationException $authException = null)

    {

        $response = new Response();

        $response->headers->set('WWW-Authenticate', sprintf('Basic realm="%s"', $this->realmName));

        $response->setStatusCode(401, $authException ? $authException->getMessage() : null);

        return $response;

    }

}