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<?php
// SPDX-FileCopyrightText: 2004-2023 Ryan Parman, Sam Sneddon, Ryan McCue
// SPDX-FileCopyrightText: 2015 Paul L. McNeely
// SPDX-License-Identifier: BSD-3-Clause
declare(strict_types=1);
namespace SimplePie\Cache;
use Memcached as NativeMemcached;
/**
* Caches data to memcached
*
* Registered for URLs with the "memcached" protocol
*
* For example, `memcached://localhost:11211/?timeout=3600&prefix=sp_` will
* connect to memcached on `localhost` on port 11211. All tables will be
* prefixed with `sp_` and data will expire after 3600 seconds
*
* @uses Memcached
* @deprecated since SimplePie 1.8.0, use implementation of "Psr\SimpleCache\CacheInterface" instead
*/
class Memcached implements Base
{
/**
* NativeMemcached instance
* @var NativeMemcached
*/
protected $cache;
/**
* Options
* @var array<string, mixed>
*/
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 Base::TYPE_FEED|Base::TYPE_IMAGE $type Either TYPE_FEED for SimplePie data, or TYPE_IMAGE for image data
*/
public function __construct(string $location, string $name, $type)
{
$this->options = [
'host' => '127.0.0.1',
'port' => 11211,
'extras' => [
'timeout' => 3600, // one hour
'prefix' => 'simplepie_',
],
];
$this->options = array_replace_recursive($this->options, \SimplePie\Cache::parse_URL($location));
$this->name = $this->options['extras']['prefix'] . md5("$name:$type");
$this->cache = new NativeMemcached();
$this->cache->addServer($this->options['host'], (int)$this->options['port']);
}
/**
* Save data to the cache
* @param array<mixed>|\SimplePie\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\SimplePie) {
$data = $data->data;
}
return $this->setData(serialize($data));
}
/**
* Retrieve the data saved to the cache
* @return array<mixed>|false 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 . '_mtime');
return (int) $data;
}
/**
* Set the last modified time to the current time
* @return bool Success status
*/
public function touch()
{
$data = $this->cache->get($this->name);
return $this->setData($data);
}
/**
* Remove the cache
* @return bool Success status
*/
public function unlink()
{
return $this->cache->delete($this->name, 0);
}
/**
* Set the last modified time and data to NativeMemcached
* @param string|false $data
* @return bool Success status
*/
private function setData($data): bool
{
if ($data !== false) {
$this->cache->set($this->name . '_mtime', time(), (int)$this->options['extras']['timeout']);
return $this->cache->set($this->name, $data, (int)$this->options['extras']['timeout']);
}
return false;
}
}
class_alias('SimplePie\Cache\Memcached', 'SimplePie_Cache_Memcached');