<?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\Routing\Matcher;

use Symfony\Component\Routing\Exception\MethodNotAllowedException;

use Symfony\Component\Routing\Route;

use Symfony\Component\Routing\RouteCollection;

/**

 * ApacheUrlMatcher matches URL based on Apache mod_rewrite matching (see ApacheMatcherDumper).

 *

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

 */

class ApacheUrlMatcher extends UrlMatcher

{

    /**

     * Tries to match a URL based on Apache mod_rewrite matching.

     *

     * Returns false if no route matches the URL.

     *

     * @param string $pathinfo The pathinfo to be parsed

     *

     * @return array An array of parameters

     *

     * @throws MethodNotAllowedException If the current method is not allowed

     */

    public function match($pathinfo)

    {

        $parameters = array();

        $allow = array();

        $match = false;

        foreach ($_SERVER as $key => $value) {

            $name = $key;

            if (0 === strpos($name, 'REDIRECT_')) {

                $name = substr($name, 9);

            }

            if (0 === strpos($name, '_ROUTING_')) {

                $name = substr($name, 9);

            } else {

                continue;

            }

            if ('_route' == $name) {

                $match = true;

            } elseif (0 === strpos($name, '_allow_')) {

                $allow[] = substr($name, 7);

            } else {

                $parameters[$name] = $value;

            }

            unset($_SERVER[$key]);

        }

        if ($match) {

            return $parameters;

        } elseif (0 < count($allow)) {

            throw new MethodNotAllowedException($allow);

        } else {

            return parent::match($pathinfo);

        }

    }

}