134 lines
4.2 KiB
PHP
134 lines
4.2 KiB
PHP
<?php
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/**
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* SimplePie
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*
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* A PHP-Based RSS and Atom Feed Framework.
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* Takes the hard work out of managing a complete RSS/Atom solution.
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*
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* Copyright (c) 2004-2012, Ryan Parman, Geoffrey Sneddon, Ryan McCue, and contributors
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification, are
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* permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* * Neither the name of the SimplePie Team nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
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* AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* @package SimplePie
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* @version 1.3.1
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* @copyright 2004-2012 Ryan Parman, Geoffrey Sneddon, Ryan McCue
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* @author Ryan Parman
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* @author Geoffrey Sneddon
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* @author Ryan McCue
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* @link http://simplepie.org/ SimplePie
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* @license http://www.opensource.org/licenses/bsd-license.php BSD License
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*/
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/**
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* Used to create cache objects
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*
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* This class can be overloaded with {@see SimplePie::set_cache_class()},
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* although the preferred way is to create your own handler
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* via {@see register()}
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*
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* @package SimplePie
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* @subpackage Caching
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*/
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class SimplePie_Cache
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{
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/**
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* Cache handler classes
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*
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* These receive 3 parameters to their constructor, as documented in
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* {@see register()}
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* @var array
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*/
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protected static $handlers = array(
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'mysql' => 'SimplePie_Cache_MySQL',
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'memcache' => 'SimplePie_Cache_Memcache',
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);
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/**
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* Don't call the constructor. Please.
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*/
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private function __construct() { }
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/**
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* Create a new SimplePie_Cache object
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*
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* @param string $location URL location (scheme is used to determine handler)
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* @param string $filename Unique identifier for cache object
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* @param string $extension 'spi' or 'spc'
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* @return SimplePie_Cache_Base Type of object depends on scheme of `$location`
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*/
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public static function get_handler($location, $filename, $extension)
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{
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$type = explode(':', $location, 2);
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$type = $type[0];
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if (!empty(self::$handlers[$type]))
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{
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$class = self::$handlers[$type];
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return new $class($location, $filename, $extension);
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}
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return new SimplePie_Cache_File($location, $filename, $extension);
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}
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/**
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* Create a new SimplePie_Cache object
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*
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* @deprecated Use {@see get_handler} instead
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*/
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public function create($location, $filename, $extension)
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{
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trigger_error('Cache::create() has been replaced with Cache::get_handler(). Switch to the registry system to use this.', E_USER_DEPRECATED);
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return self::get_handler($location, $filename, $extension);
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}
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/**
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* Register a handler
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*
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* @param string $type DSN type to register for
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* @param string $class Name of handler class. Must implement SimplePie_Cache_Base
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*/
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public static function register($type, $class)
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{
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self::$handlers[$type] = $class;
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}
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/**
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* Parse a URL into an array
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*
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* @param string $url
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* @return array
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*/
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public static function parse_URL($url)
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{
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$params = parse_url($url);
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$params['extras'] = array();
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if (isset($params['query']))
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{
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parse_str($params['query'], $params['extras']);
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}
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return $params;
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}
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}
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