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\Cache; 46 47/** 48 * Base class for database-based caches 49 * 50 * @package SimplePie 51 * @subpackage Caching 52 * @deprecated since SimplePie 1.8.0, use implementation of "Psr\SimpleCache\CacheInterface" instead 53 */ 54abstract class DB implements Base 55{ 56 /** 57 * Helper for database conversion 58 * 59 * Converts a given {@see SimplePie} object into data to be stored 60 * 61 * @param \SimplePie\SimplePie $data 62 * @return array First item is the serialized data for storage, second item is the unique ID for this item 63 */ 64 protected static function prepare_simplepie_object_for_cache($data) 65 { 66 $items = $data->get_items(); 67 $items_by_id = []; 68 69 if (!empty($items)) { 70 foreach ($items as $item) { 71 $items_by_id[$item->get_id()] = $item; 72 } 73 74 if (count($items_by_id) !== count($items)) { 75 $items_by_id = []; 76 foreach ($items as $item) { 77 $items_by_id[$item->get_id(true)] = $item; 78 } 79 } 80 81 if (isset($data->data['child'][\SimplePie\SimplePie::NAMESPACE_ATOM_10]['feed'][0])) { 82 $channel = &$data->data['child'][\SimplePie\SimplePie::NAMESPACE_ATOM_10]['feed'][0]; 83 } elseif (isset($data->data['child'][\SimplePie\SimplePie::NAMESPACE_ATOM_03]['feed'][0])) { 84 $channel = &$data->data['child'][\SimplePie\SimplePie::NAMESPACE_ATOM_03]['feed'][0]; 85 } elseif (isset($data->data['child'][\SimplePie\SimplePie::NAMESPACE_RDF]['RDF'][0])) { 86 $channel = &$data->data['child'][\SimplePie\SimplePie::NAMESPACE_RDF]['RDF'][0]; 87 } elseif (isset($data->data['child'][\SimplePie\SimplePie::NAMESPACE_RSS_20]['rss'][0]['child'][\SimplePie\SimplePie::NAMESPACE_RSS_20]['channel'][0])) { 88 $channel = &$data->data['child'][\SimplePie\SimplePie::NAMESPACE_RSS_20]['rss'][0]['child'][\SimplePie\SimplePie::NAMESPACE_RSS_20]['channel'][0]; 89 } else { 90 $channel = null; 91 } 92 93 if ($channel !== null) { 94 if (isset($channel['child'][\SimplePie\SimplePie::NAMESPACE_ATOM_10]['entry'])) { 95 unset($channel['child'][\SimplePie\SimplePie::NAMESPACE_ATOM_10]['entry']); 96 } 97 if (isset($channel['child'][\SimplePie\SimplePie::NAMESPACE_ATOM_03]['entry'])) { 98 unset($channel['child'][\SimplePie\SimplePie::NAMESPACE_ATOM_03]['entry']); 99 } 100 if (isset($channel['child'][\SimplePie\SimplePie::NAMESPACE_RSS_10]['item'])) { 101 unset($channel['child'][\SimplePie\SimplePie::NAMESPACE_RSS_10]['item']); 102 } 103 if (isset($channel['child'][\SimplePie\SimplePie::NAMESPACE_RSS_090]['item'])) { 104 unset($channel['child'][\SimplePie\SimplePie::NAMESPACE_RSS_090]['item']); 105 } 106 if (isset($channel['child'][\SimplePie\SimplePie::NAMESPACE_RSS_20]['item'])) { 107 unset($channel['child'][\SimplePie\SimplePie::NAMESPACE_RSS_20]['item']); 108 } 109 } 110 if (isset($data->data['items'])) { 111 unset($data->data['items']); 112 } 113 if (isset($data->data['ordered_items'])) { 114 unset($data->data['ordered_items']); 115 } 116 } 117 return [serialize($data->data), $items_by_id]; 118 } 119} 120 121class_alias('SimplePie\Cache\DB', 'SimplePie_Cache_DB'); 122