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