113 lines
3.0 KiB
PHP
113 lines
3.0 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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use Predis\Response\ErrorInterface;
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use Symfony\Component\Cache\Traits\RedisProxy;
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/**
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* Redis based session storage handler based on the Redis class
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* provided by the PHP redis extension.
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*
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* @author Dalibor Karlović <dalibor@flexolabs.io>
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*/
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class RedisSessionHandler extends AbstractSessionHandler
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{
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private $redis;
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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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* List of available options:
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* * prefix: The prefix to use for the keys in order to avoid collision on the Redis server.
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*
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* @param \Redis|\RedisArray|\RedisCluster|\Predis\Client|RedisProxy $redis
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* @param array $options An associative array of options
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*
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* @throws \InvalidArgumentException When unsupported client or options are passed
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*/
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public function __construct($redis, array $options = array())
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{
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if (
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!$redis instanceof \Redis &&
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!$redis instanceof \RedisArray &&
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!$redis instanceof \RedisCluster &&
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!$redis instanceof \Predis\Client &&
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!$redis instanceof RedisProxy
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) {
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throw new \InvalidArgumentException(sprintf('%s() expects parameter 1 to be Redis, RedisArray, RedisCluster or Predis\Client, %s given', __METHOD__, \is_object($redis) ? \get_class($redis) : \gettype($redis)));
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}
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if ($diff = array_diff(array_keys($options), array('prefix'))) {
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throw new \InvalidArgumentException(sprintf('The following options are not supported "%s"', implode(', ', $diff)));
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}
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$this->redis = $redis;
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$this->prefix = $options['prefix'] ?? 'sf_s';
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}
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/**
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* {@inheritdoc}
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*/
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protected function doRead($sessionId): string
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{
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return $this->redis->get($this->prefix.$sessionId) ?: '';
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}
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/**
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* {@inheritdoc}
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*/
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protected function doWrite($sessionId, $data): bool
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{
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$result = $this->redis->setEx($this->prefix.$sessionId, (int) ini_get('session.gc_maxlifetime'), $data);
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return $result && !$result instanceof ErrorInterface;
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}
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/**
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* {@inheritdoc}
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*/
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protected function doDestroy($sessionId): bool
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{
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$this->redis->del($this->prefix.$sessionId);
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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(): bool
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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 gc($maxlifetime): bool
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{
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return true;
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}
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/**
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* {@inheritdoc}
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*/
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public function updateTimestamp($sessionId, $data)
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{
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return (bool) $this->redis->expire($this->prefix.$sessionId, (int) ini_get('session.gc_maxlifetime'));
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}
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}
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