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<?php

/**
 * SimplePie
 *
 * A PHP-Based RSS and Atom Feed Framework.
 * Takes the hard work out of managing a complete RSS/Atom solution.
 *
 * Copyright (c) 2004-2022, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are
 * permitted provided that the following conditions are met:
 *
 * 	* Redistributions of source code must retain the above copyright notice, this list of
 * 	  conditions and the following disclaimer.
 *
 * 	* Redistributions in binary form must reproduce the above copyright notice, this list
 * 	  of conditions and the following disclaimer in the documentation and/or other materials
 * 	  provided with the distribution.
 *
 * 	* Neither the name of the SimplePie Team nor the names of its contributors may be used
 * 	  to endorse or promote products derived from this software without specific prior
 * 	  written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
 * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * @package SimplePie
 * @copyright 2004-2016 Ryan Parman, Sam Sneddon, Ryan McCue
 * @author Ryan Parman
 * @author Sam Sneddon
 * @author Ryan McCue
 * @link http://simplepie.org/ SimplePie
 * @license http://www.opensource.org/licenses/bsd-license.php BSD License
 */

namespace SimplePie;

use SimplePie\Cache\Base;

/**
 * Used to create cache objects
 *
 * This class can be overloaded with {@see SimplePie::set_cache_class()},
 * although the preferred way is to create your own handler
 * via {@see register()}
 *
 * @package SimplePie
 * @subpackage Caching
 * @deprecated since SimplePie 1.8.0, use "SimplePie\SimplePie::set_cache()" instead
 */
class Cache
{
    /**
     * Cache handler classes
     *
     * These receive 3 parameters to their constructor, as documented in
     * {@see register()}
     * @var array
     */
    protected static $handlers = [
        'mysql'     => 'SimplePie\Cache\MySQL',
        'memcache'  => 'SimplePie\Cache\Memcache',
        'memcached' => 'SimplePie\Cache\Memcached',
        'redis'     => 'SimplePie\Cache\Redis'
    ];

    /**
     * Don't call the constructor. Please.
     */
    private function __construct()
    {
    }

    /**
     * Create a new SimplePie\Cache object
     *
     * @param string $location URL location (scheme is used to determine handler)
     * @param string $filename Unique identifier for cache object
     * @param Base::TYPE_FEED|Base::TYPE_IMAGE $extension 'spi' or 'spc'
     * @return Base Type of object depends on scheme of `$location`
     */
    public static function get_handler($location, $filename, $extension)
    {
        $type = explode(':', $location, 2);
        $type = $type[0];
        if (!empty(self::$handlers[$type])) {
            $class = self::$handlers[$type];
            return new $class($location, $filename, $extension);
        }

        return new \SimplePie\Cache\File($location, $filename, $extension);
    }

    /**
     * Create a new SimplePie\Cache object
     *
     * @deprecated since SimplePie 1.3.1, use {@see get_handler()} instead
     */
    public function create($location, $filename, $extension)
    {
        trigger_error('Cache::create() has been replaced with Cache::get_handler() since SimplePie 1.3.1, use the registry system instead.', \E_USER_DEPRECATED);

        return self::get_handler($location, $filename, $extension);
    }

    /**
     * Register a handler
     *
     * @param string $type DSN type to register for
     * @param class-string<Base> $class Name of handler class. Must implement Base
     */
    public static function register($type, $class)
    {
        self::$handlers[$type] = $class;
    }

    /**
     * Parse a URL into an array
     *
     * @param string $url
     * @return array
     */
    public static function parse_URL($url)
    {
        $params = parse_url($url);
        $params['extras'] = [];
        if (isset($params['query'])) {
            parse_str($params['query'], $params['extras']);
        }
        return $params;
    }
}

class_alias('SimplePie\Cache', 'SimplePie_Cache');