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Differences Between: [Versions 310 and 311] [Versions 311 and 401] [Versions 311 and 402] [Versions 311 and 403] [Versions 39 and 311]

   1  <?php
   2  /**
   3   * SimplePie
   4   *
   5   * A PHP-Based RSS and Atom Feed Framework.
   6   * Takes the hard work out of managing a complete RSS/Atom solution.
   7   *
   8   * Copyright (c) 2004-2016, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors
   9   * All rights reserved.
  10   *
  11   * Redistribution and use in source and binary forms, with or without modification, are
  12   * permitted provided that the following conditions are met:
  13   *
  14   * 	 * Redistributions of source code must retain the above copyright notice, this list of
  15   * 	   conditions and the following disclaimer.
  16   *
  17   * 	 * Redistributions in binary form must reproduce the above copyright notice, this list
  18   * 	   of conditions and the following disclaimer in the documentation and/or other materials
  19   * 	   provided with the distribution.
  20   *
  21   * 	 * Neither the name of the SimplePie Team nor the names of its contributors may be used
  22   * 	   to endorse or promote products derived from this software without specific prior
  23   * 	   written permission.
  24   *
  25   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
  26   * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
  27   * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
  28   * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  29   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  30   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  31   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  32   * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  33   * POSSIBILITY OF SUCH DAMAGE.
  34   *
  35   * @package SimplePie
  36   * @copyright 2004-2016 Ryan Parman, Sam Sneddon, Ryan McCue
  37   * @author Ryan Parman
  38   * @author Sam Sneddon
  39   * @author Ryan McCue
  40   * @link http://simplepie.org/ SimplePie
  41   * @license http://www.opensource.org/licenses/bsd-license.php BSD License
  42   */
  43  
  44  /**
  45   * Base class for database-based caches
  46   *
  47   * @package SimplePie
  48   * @subpackage Caching
  49   */
  50  abstract class SimplePie_Cache_DB implements SimplePie_Cache_Base
  51  {
  52  	 /**
  53  	  * Helper for database conversion
  54  	  *
  55  	  * Converts a given {@see SimplePie} object into data to be stored
  56  	  *
  57  	  * @param SimplePie $data
  58  	  * @return array First item is the serialized data for storage, second item is the unique ID for this item
  59  	  */
  60  	protected static function prepare_simplepie_object_for_cache($data)
  61  	 {
  62  	 	 $items = $data->get_items();
  63  	 	 $items_by_id = array();
  64  
  65  	 	 if (!empty($items))
  66  	 	 {
  67  	 	 	 foreach ($items as $item)
  68  	 	 	 {
  69  	 	 	 	 $items_by_id[$item->get_id()] = $item;
  70  	 	 	 }
  71  
  72  	 	 	 if (count($items_by_id) !== count($items))
  73  	 	 	 {
  74  	 	 	 	 $items_by_id = array();
  75  	 	 	 	 foreach ($items as $item)
  76  	 	 	 	 {
  77  	 	 	 	 	 $items_by_id[$item->get_id(true)] = $item;
  78  	 	 	 	 }
  79  	 	 	 }
  80  
  81  	 	 	 if (isset($data->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0]))
  82  	 	 	 {
  83  	 	 	 	 $channel =& $data->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0];
  84  	 	 	 }
  85  	 	 	 elseif (isset($data->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0]))
  86  	 	 	 {
  87  	 	 	 	 $channel =& $data->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0];
  88  	 	 	 }
  89  	 	 	 elseif (isset($data->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]))
  90  	 	 	 {
  91  	 	 	 	 $channel =& $data->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0];
  92  	 	 	 }
  93  	 	 	 elseif (isset($data->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_20]['channel'][0]))
  94  	 	 	 {
  95  	 	 	 	 $channel =& $data->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_20]['channel'][0];
  96  	 	 	 }
  97  	 	 	 else
  98  	 	 	 {
  99  	 	 	 	 $channel = null;
 100  	 	 	 }
 101  
 102  	 	 	 if ($channel !== null)
 103  	 	 	 {
 104  	 	 	 	 if (isset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['entry']))
 105  	 	 	 	 {
 106  	 	 	 	 	 unset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['entry']);
 107  	 	 	 	 }
 108  	 	 	 	 if (isset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['entry']))
 109  	 	 	 	 {
 110  	 	 	 	 	 unset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['entry']);
 111  	 	 	 	 }
 112  	 	 	 	 if (isset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_10]['item']))
 113  	 	 	 	 {
 114  	 	 	 	 	 unset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_10]['item']);
 115  	 	 	 	 }
 116  	 	 	 	 if (isset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_090]['item']))
 117  	 	 	 	 {
 118  	 	 	 	 	 unset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_090]['item']);
 119  	 	 	 	 }
 120  	 	 	 	 if (isset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_20]['item']))
 121  	 	 	 	 {
 122  	 	 	 	 	 unset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_20]['item']);
 123  	 	 	 	 }
 124  	 	 	 }
 125  	 	 	 if (isset($data->data['items']))
 126  	 	 	 {
 127  	 	 	 	 unset($data->data['items']);
 128  	 	 	 }
 129  	 	 	 if (isset($data->data['ordered_items']))
 130  	 	 	 {
 131  	 	 	 	 unset($data->data['ordered_items']);
 132  	 	 	 }
 133  	 	 }
 134  	 	 return array(serialize($data->data), $items_by_id);
 135  	 }
 136  }