UriMatcher.php

<?php

namespace BarnabyWalters\Rest;

use Symfony\Component\Routing\Matcher\UrlMatcher as Matcher;

/**
 * UrlMatcher
 *
 * A subclass of Symfony’s UrlMatcher which strips the extension from incoming 
 * URLs and ensures they have a trailing slash, making for easier route 
 * writing and conneg+extensions when importing routes against a prefix.
 * 
 * @author Barnaby Walters waterpigs.co.uk
 */
class UrlMatcher extends Matcher {

    /**
     * Match
     * 
     * Performs some normalization to resolve some of the trailing-slash issues
     * and allow formats to be appended to the request ad hoc without affecting
     * routing.
     * 
     * Effectively, removes the extension from $pathInfo and adds a slash onto
     * whatever is left.
     * 
     * @param string $pathInfo
     */
    public function match($pathInfo) {
        // Remove extension, if any
        $parts = pathinfo($pathInfo);

        $newPath = rtrim($parts['dirname'], '/') . '/' . $parts['filename'];
        $newPath = rtrim($newPath, '/') . '/';

        return parent::match($newPath);
    }

}

// EOF