You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
183 lines
5.0 KiB
183 lines
5.0 KiB
<?php |
|
/** |
|
* SimplePie |
|
* |
|
* A PHP-Based RSS and Atom Feed Framework. |
|
* Takes the hard work out of managing a complete RSS/Atom solution. |
|
* |
|
* Copyright (c) 2004-2012, Ryan Parman, Geoffrey Sneddon, Ryan McCue, and contributors |
|
* 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 |
|
* @version 1.3.1 |
|
* @copyright 2004-2012 Ryan Parman, Geoffrey Sneddon, Ryan McCue |
|
* @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 |
|
*/ |
|
|
|
/** |
|
* Caches data to memcache |
|
* |
|
* Registered for URLs with the "memcache" protocol |
|
* |
|
* For example, `memcache://localhost:11211/?timeout=3600&prefix=sp_` will |
|
* connect to memcache on `localhost` on port 11211. All tables will be |
|
* prefixed with `sp_` and data will expire after 3600 seconds |
|
* |
|
* @package SimplePie |
|
* @subpackage Caching |
|
* @uses Memcache |
|
*/ |
|
class SimplePie_Cache_Memcache implements SimplePie_Cache_Base |
|
{ |
|
/** |
|
* Memcache instance |
|
* |
|
* @var Memcache |
|
*/ |
|
protected $cache; |
|
|
|
/** |
|
* Options |
|
* |
|
* @var array |
|
*/ |
|
protected $options; |
|
|
|
/** |
|
* Cache name |
|
* |
|
* @var string |
|
*/ |
|
protected $name; |
|
|
|
/** |
|
* Create a new cache object |
|
* |
|
* @param string $location Location string (from SimplePie::$cache_location) |
|
* @param string $name Unique ID for the cache |
|
* @param string $type Either TYPE_FEED for SimplePie data, or TYPE_IMAGE for image data |
|
*/ |
|
public function __construct($location, $name, $type) |
|
{ |
|
$this->options = array( |
|
'host' => '127.0.0.1', |
|
'port' => 11211, |
|
'extras' => array( |
|
'timeout' => 3600, // one hour |
|
'prefix' => 'simplepie_', |
|
), |
|
); |
|
$parsed = SimplePie_Cache::parse_URL($location); |
|
$this->options['host'] = empty($parsed['host']) ? $this->options['host'] : $parsed['host']; |
|
$this->options['port'] = empty($parsed['port']) ? $this->options['port'] : $parsed['port']; |
|
$this->options['extras'] = array_merge($this->options['extras'], $parsed['extras']); |
|
$this->name = $this->options['extras']['prefix'] . md5("$name:$type"); |
|
|
|
$this->cache = new Memcache(); |
|
$this->cache->addServer($this->options['host'], (int) $this->options['port']); |
|
} |
|
|
|
/** |
|
* Save data to the cache |
|
* |
|
* @param array|SimplePie $data Data to store in the cache. If passed a SimplePie object, only cache the $data property |
|
* @return bool Successfulness |
|
*/ |
|
public function save($data) |
|
{ |
|
if ($data instanceof SimplePie) |
|
{ |
|
$data = $data->data; |
|
} |
|
return $this->cache->set($this->name, serialize($data), MEMCACHE_COMPRESSED, (int) $this->options['extras']['timeout']); |
|
} |
|
|
|
/** |
|
* Retrieve the data saved to the cache |
|
* |
|
* @return array Data for SimplePie::$data |
|
*/ |
|
public function load() |
|
{ |
|
$data = $this->cache->get($this->name); |
|
|
|
if ($data !== false) |
|
{ |
|
return unserialize($data); |
|
} |
|
return false; |
|
} |
|
|
|
/** |
|
* Retrieve the last modified time for the cache |
|
* |
|
* @return int Timestamp |
|
*/ |
|
public function mtime() |
|
{ |
|
$data = $this->cache->get($this->name); |
|
|
|
if ($data !== false) |
|
{ |
|
// essentially ignore the mtime because Memcache expires on it's own |
|
return time(); |
|
} |
|
|
|
return false; |
|
} |
|
|
|
/** |
|
* Set the last modified time to the current time |
|
* |
|
* @return bool Success status |
|
*/ |
|
public function touch() |
|
{ |
|
$data = $this->cache->get($this->name); |
|
|
|
if ($data !== false) |
|
{ |
|
return $this->cache->set($this->name, $data, MEMCACHE_COMPRESSED, (int) $this->duration); |
|
} |
|
|
|
return false; |
|
} |
|
|
|
/** |
|
* Remove the cache |
|
* |
|
* @return bool Success status |
|
*/ |
|
public function unlink() |
|
{ |
|
return $this->cache->delete($this->name, 0); |
|
} |
|
}
|
|
|