chill-bundles/src/Bundle/ChillDocStoreBundle/Dav/Utils/LockTokenParser.php

<?php

declare(strict_types=1);

/*
 * Chill is a software for social workers
 *
 * For the full copyright and license information, please view
 * the LICENSE file that was distributed with this source code.
 */

namespace Chill\DocStoreBundle\Dav\Utils;

use Symfony\Component\HttpFoundation\Request;

final readonly class LockTokenParser
{
    public function parseLockToken(Request $request): ?string
    {
        $token = $request->headers->get('lock-token');

        if (null === $token) {
            return null;
        }
        if (str_starts_with($token, '"')) {
            $token = substr($token, 1, -1);
        }

        if (str_starts_with($token, '<')) {
            $token = substr($token, 1);
        }

        if (str_ends_with($token, '>')) {
            $token = substr($token, 0, -1);
        }

        if (str_ends_with($token, '"')) {
            $token = substr($token, 1, -1);
        }

        return $token;
    }

    public function parseIfCondition(Request $request): ?string
    {
        $if = $request->headers->get('if');

        if (null === $if) {
            return null;
        }

        if (preg_match('/\((?:not\s+)?<([^>]+)>/i', $if, $matches)) {
            return $matches[1];
        }

        return null;
    }
}