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137 lines
3.6 KiB
137 lines
3.6 KiB
<?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\RedisClusterProxy;
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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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* @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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* 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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* * ttl: The time to live in seconds.
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*
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* @param \Redis|\RedisArray|\RedisCluster|\Predis\ClientInterface|RedisProxy|RedisClusterProxy $redis
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*
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* @throws \InvalidArgumentException When unsupported client or options are passed
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*/
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public function __construct($redis, array $options = [])
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{
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if (
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!$redis instanceof \Redis &&
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!$redis instanceof \RedisArray &&
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!$redis instanceof \RedisCluster &&
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!$redis instanceof \Predis\ClientInterface &&
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!$redis instanceof RedisProxy &&
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!$redis instanceof RedisClusterProxy
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) {
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throw new \InvalidArgumentException(sprintf('"%s()" expects parameter 1 to be Redis, RedisArray, RedisCluster or Predis\ClientInterface, "%s" given.', __METHOD__, get_debug_type($redis)));
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}
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if ($diff = array_diff(array_keys($options), ['prefix', 'ttl'])) {
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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 = $options['prefix'] ?? 'sf_s';
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$this->ttl = $options['ttl'] ?? null;
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}
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/**
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* {@inheritdoc}
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*/
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protected function doRead(string $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(string $sessionId, string $data): bool
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{
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$result = $this->redis->setEx($this->prefix.$sessionId, (int) ($this->ttl ?? \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(string $sessionId): bool
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{
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static $unlink = true;
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if ($unlink) {
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try {
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$unlink = false !== $this->redis->unlink($this->prefix.$sessionId);
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} catch (\Throwable $e) {
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$unlink = false;
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}
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}
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if (!$unlink) {
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$this->redis->del($this->prefix.$sessionId);
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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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#[\ReturnTypeWillChange]
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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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* @return int|false
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*/
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#[\ReturnTypeWillChange]
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public function gc($maxlifetime)
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{
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return 0;
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}
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/**
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* @return bool
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*/
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#[\ReturnTypeWillChange]
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public function updateTimestamp($sessionId, $data)
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{
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return (bool) $this->redis->expire($this->prefix.$sessionId, (int) ($this->ttl ?? \ini_get('session.gc_maxlifetime')));
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}
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}
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