1<?php
2
3/**
4 * SimplePie
5 *
6 * A PHP-Based RSS and Atom Feed Framework.
7 * Takes the hard work out of managing a complete RSS/Atom solution.
8 *
9 * Copyright (c) 2004-2022, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without modification, are
13 * permitted provided that the following conditions are met:
14 *
15 * 	* Redistributions of source code must retain the above copyright notice, this list of
16 * 	  conditions and the following disclaimer.
17 *
18 * 	* Redistributions in binary form must reproduce the above copyright notice, this list
19 * 	  of conditions and the following disclaimer in the documentation and/or other materials
20 * 	  provided with the distribution.
21 *
22 * 	* Neither the name of the SimplePie Team nor the names of its contributors may be used
23 * 	  to endorse or promote products derived from this software without specific prior
24 * 	  written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
27 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
28 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
29 * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
31 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
33 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 * POSSIBILITY OF SUCH DAMAGE.
35 *
36 * @package SimplePie
37 * @copyright 2004-2016 Ryan Parman, Sam Sneddon, Ryan McCue
38 * @author Ryan Parman
39 * @author Sam Sneddon
40 * @author Ryan McCue
41 * @link http://simplepie.org/ SimplePie
42 * @license http://www.opensource.org/licenses/bsd-license.php BSD License
43 */
44
45namespace SimplePie;
46
47use SimplePie\Cache\Base;
48
49/**
50 * Used to create cache objects
51 *
52 * This class can be overloaded with {@see SimplePie::set_cache_class()},
53 * although the preferred way is to create your own handler
54 * via {@see register()}
55 *
56 * @package SimplePie
57 * @subpackage Caching
58 * @deprecated since SimplePie 1.8.0, use "SimplePie\SimplePie::set_cache()" instead
59 */
60class Cache
61{
62    /**
63     * Cache handler classes
64     *
65     * These receive 3 parameters to their constructor, as documented in
66     * {@see register()}
67     * @var array
68     */
69    protected static $handlers = [
70        'mysql'     => 'SimplePie\Cache\MySQL',
71        'memcache'  => 'SimplePie\Cache\Memcache',
72        'memcached' => 'SimplePie\Cache\Memcached',
73        'redis'     => 'SimplePie\Cache\Redis'
74    ];
75
76    /**
77     * Don't call the constructor. Please.
78     */
79    private function __construct()
80    {
81    }
82
83    /**
84     * Create a new SimplePie\Cache object
85     *
86     * @param string $location URL location (scheme is used to determine handler)
87     * @param string $filename Unique identifier for cache object
88     * @param Base::TYPE_FEED|Base::TYPE_IMAGE $extension 'spi' or 'spc'
89     * @return Base Type of object depends on scheme of `$location`
90     */
91    public static function get_handler($location, $filename, $extension)
92    {
93        $type = explode(':', $location, 2);
94        $type = $type[0];
95        if (!empty(self::$handlers[$type])) {
96            $class = self::$handlers[$type];
97            return new $class($location, $filename, $extension);
98        }
99
100        return new \SimplePie\Cache\File($location, $filename, $extension);
101    }
102
103    /**
104     * Create a new SimplePie\Cache object
105     *
106     * @deprecated since SimplePie 1.3.1, use {@see get_handler()} instead
107     */
108    public function create($location, $filename, $extension)
109    {
110        trigger_error('Cache::create() has been replaced with Cache::get_handler() since SimplePie 1.3.1, use the registry system instead.', \E_USER_DEPRECATED);
111
112        return self::get_handler($location, $filename, $extension);
113    }
114
115    /**
116     * Register a handler
117     *
118     * @param string $type DSN type to register for
119     * @param class-string<Base> $class Name of handler class. Must implement Base
120     */
121    public static function register($type, $class)
122    {
123        self::$handlers[$type] = $class;
124    }
125
126    /**
127     * Parse a URL into an array
128     *
129     * @param string $url
130     * @return array
131     */
132    public static function parse_URL($url)
133    {
134        $params = parse_url($url);
135        $params['extras'] = [];
136        if (isset($params['query'])) {
137            parse_str($params['query'], $params['extras']);
138        }
139        return $params;
140    }
141}
142
143class_alias('SimplePie\Cache', 'SimplePie_Cache');
144