2013-08-25 18:10:23 +00:00
|
|
|
<?php
|
|
|
|
/**
|
|
|
|
* SimplePie
|
|
|
|
*
|
|
|
|
* A PHP-Based RSS and Atom Feed Framework.
|
|
|
|
* Takes the hard work out of managing a complete RSS/Atom solution.
|
|
|
|
*
|
2013-12-06 08:45:27 +00:00
|
|
|
* Copyright (c) 2004-2012, Ryan Parman, Geoffrey Sneddon, Ryan McCue, and contributors
|
2013-08-25 18:10:23 +00:00
|
|
|
* 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
|
2013-12-06 08:45:27 +00:00
|
|
|
* @version 1.3.1
|
|
|
|
* @copyright 2004-2012 Ryan Parman, Geoffrey Sneddon, Ryan McCue
|
2013-08-25 18:10:23 +00:00
|
|
|
* @author Ryan Parman
|
|
|
|
* @author Geoffrey Sneddon
|
|
|
|
* @author Ryan McCue
|
|
|
|
* @link http://simplepie.org/ SimplePie
|
|
|
|
* @license http://www.opensource.org/licenses/bsd-license.php BSD License
|
|
|
|
*/
|
|
|
|
|
2013-12-06 08:45:27 +00:00
|
|
|
/**
|
|
|
|
* Base class for database-based caches
|
|
|
|
*
|
|
|
|
* @package SimplePie
|
|
|
|
* @subpackage Caching
|
|
|
|
*/
|
2013-08-25 18:10:23 +00:00
|
|
|
abstract class SimplePie_Cache_DB implements SimplePie_Cache_Base
|
|
|
|
{
|
2013-12-06 08:45:27 +00:00
|
|
|
/**
|
|
|
|
* Helper for database conversion
|
|
|
|
*
|
|
|
|
* Converts a given {@see SimplePie} object into data to be stored
|
|
|
|
*
|
|
|
|
* @param SimplePie $data
|
|
|
|
* @return array First item is the serialized data for storage, second item is the unique ID for this item
|
|
|
|
*/
|
|
|
|
protected static function prepare_simplepie_object_for_cache($data)
|
2013-08-25 18:10:23 +00:00
|
|
|
{
|
|
|
|
$items = $data->get_items();
|
|
|
|
$items_by_id = array();
|
|
|
|
|
|
|
|
if (!empty($items))
|
|
|
|
{
|
|
|
|
foreach ($items as $item)
|
|
|
|
{
|
|
|
|
$items_by_id[$item->get_id()] = $item;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (count($items_by_id) !== count($items))
|
|
|
|
{
|
|
|
|
$items_by_id = array();
|
|
|
|
foreach ($items as $item)
|
|
|
|
{
|
|
|
|
$items_by_id[$item->get_id(true)] = $item;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (isset($data->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0]))
|
|
|
|
{
|
|
|
|
$channel =& $data->data['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['feed'][0];
|
|
|
|
}
|
|
|
|
elseif (isset($data->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0]))
|
|
|
|
{
|
|
|
|
$channel =& $data->data['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['feed'][0];
|
|
|
|
}
|
|
|
|
elseif (isset($data->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0]))
|
|
|
|
{
|
|
|
|
$channel =& $data->data['child'][SIMPLEPIE_NAMESPACE_RDF]['RDF'][0];
|
|
|
|
}
|
|
|
|
elseif (isset($data->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_20]['channel'][0]))
|
|
|
|
{
|
|
|
|
$channel =& $data->data['child'][SIMPLEPIE_NAMESPACE_RSS_20]['rss'][0]['child'][SIMPLEPIE_NAMESPACE_RSS_20]['channel'][0];
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
$channel = null;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ($channel !== null)
|
|
|
|
{
|
|
|
|
if (isset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['entry']))
|
|
|
|
{
|
|
|
|
unset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['entry']);
|
|
|
|
}
|
|
|
|
if (isset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['entry']))
|
|
|
|
{
|
|
|
|
unset($channel['child'][SIMPLEPIE_NAMESPACE_ATOM_03]['entry']);
|
|
|
|
}
|
|
|
|
if (isset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_10]['item']))
|
|
|
|
{
|
|
|
|
unset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_10]['item']);
|
|
|
|
}
|
|
|
|
if (isset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_090]['item']))
|
|
|
|
{
|
|
|
|
unset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_090]['item']);
|
|
|
|
}
|
|
|
|
if (isset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_20]['item']))
|
|
|
|
{
|
|
|
|
unset($channel['child'][SIMPLEPIE_NAMESPACE_RSS_20]['item']);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (isset($data->data['items']))
|
|
|
|
{
|
|
|
|
unset($data->data['items']);
|
|
|
|
}
|
|
|
|
if (isset($data->data['ordered_items']))
|
|
|
|
{
|
|
|
|
unset($data->data['ordered_items']);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return array(serialize($data->data), $items_by_id);
|
|
|
|
}
|
|
|
|
}
|