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- <?php
- /*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
- namespace Symfony\Component\HttpFoundation\Session\Storage\Handler;
- /**
- * MemcacheSessionHandler.
- *
- * @author Drak <drak@zikula.org>
- */
- class MemcacheSessionHandler implements \SessionHandlerInterface
- {
- /**
- * @var \Memcache Memcache driver.
- */
- private $memcache;
- /**
- * @var int Time to live in seconds
- */
- private $ttl;
- /**
- * @var string Key prefix for shared environments.
- */
- private $prefix;
- /**
- * Constructor.
- *
- * List of available options:
- * * prefix: The prefix to use for the memcache keys in order to avoid collision
- * * expiretime: The time to live in seconds
- *
- * @param \Memcache $memcache A \Memcache instance
- * @param array $options An associative array of Memcache options
- *
- * @throws \InvalidArgumentException When unsupported options are passed
- */
- public function __construct(\Memcache $memcache, array $options = array())
- {
- if ($diff = array_diff(array_keys($options), array('prefix', 'expiretime'))) {
- throw new \InvalidArgumentException(sprintf(
- 'The following options are not supported "%s"', implode(', ', $diff)
- ));
- }
- $this->memcache = $memcache;
- $this->ttl = isset($options['expiretime']) ? (int) $options['expiretime'] : 86400;
- $this->prefix = isset($options['prefix']) ? $options['prefix'] : 'sf2s';
- }
- /**
- * {@inheritdoc}
- */
- public function open($savePath, $sessionName)
- {
- return true;
- }
- /**
- * {@inheritdoc}
- */
- public function close()
- {
- return $this->memcache->close();
- }
- /**
- * {@inheritdoc}
- */
- public function read($sessionId)
- {
- return $this->memcache->get($this->prefix.$sessionId) ?: '';
- }
- /**
- * {@inheritdoc}
- */
- public function write($sessionId, $data)
- {
- return $this->memcache->set($this->prefix.$sessionId, $data, 0, time() + $this->ttl);
- }
- /**
- * {@inheritdoc}
- */
- public function destroy($sessionId)
- {
- return $this->memcache->delete($this->prefix.$sessionId);
- }
- /**
- * {@inheritdoc}
- */
- public function gc($maxlifetime)
- {
- // not required here because memcache will auto expire the records anyhow.
- return true;
- }
- /**
- * Return a Memcache instance.
- *
- * @return \Memcache
- */
- protected function getMemcache()
- {
- return $this->memcache;
- }
- }
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