owncloud/core

<?php
/**
 * @author Joas Schilling <coding@schilljs.com>
 * @author Lukas Reschke <lukas@statuscode.ch>
 * @author Morris Jobke <hey@morrisjobke.de>
 * @author Robin Appelman <icewind@owncloud.com>
 * @author Thomas Müller <thomas.mueller@tmit.eu>
 *
 * @copyright Copyright (c) 2018, ownCloud GmbH
 * @license AGPL-3.0
 *
 * This code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3,
 * as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License, version 3,
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 *
 */

namespace OC\Route;

use OCP\ILogger;

class CachingRouter extends Router {
    /**
     * @var \OCP\ICache
     */
    protected $cache;

    /**
     * @param \OCP\ICache $cache
     * @param ILogger $logger
     */
    public function __construct($cache, ILogger $logger) {
        $this->cache = $cache;
        parent::__construct($logger);
    }

    /**
     * Generate url based on $name and $parameters
     *
     * @param string $name Name of the route to use.
     * @param array $parameters Parameters for the route
     * @param bool $absolute
     * @return string
     */
    public function generate($name, $parameters = [], $absolute = false) {
        \asort($parameters);
        $key = $this->context->getHost() . '#' . $this->context->getBaseUrl() . $name . \sha1(\json_encode($parameters)) . \intval($absolute);
        $cachedKey = $this->cache->get($key);
        if ($cachedKey) {
            return $cachedKey;
        } else {
            $url = parent::generate($name, $parameters, $absolute);
            $this->cache->set($key, $url, 3600);
            return $url;
        }
    }
}