vendor/symfony/http-foundation/Session/Storage/MetadataBag.php

<?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;
 
use Symfony\Component\HttpFoundation\Session\SessionBagInterface;
 
class MetadataBag implements SessionBagInterface
{
    const CREATED = 'c';
    const UPDATED = 'u';
    const LIFETIME = 'l';
 
    private $name = '__metadata';
 
    private $storageKey;
 
    protected $meta = [self::CREATED => 0, self::UPDATED => 0, self::LIFETIME => 0];
 
    private $lastUsed;
 
    private $updateThreshold;
 
    public function __construct(string $storageKey = '_sf2_meta', int $updateThreshold = 0)
    {
        $this->storageKey = $storageKey;
        $this->updateThreshold = $updateThreshold;
    }
 
    public function initialize(array &$array)
    {
        $this->meta = &$array;
 
        if (isset($array[self::CREATED])) {
            $this->lastUsed = $this->meta[self::UPDATED];
 
            $timeStamp = time();
            if ($timeStamp - $array[self::UPDATED] >= $this->updateThreshold) {
                $this->meta[self::UPDATED] = $timeStamp;
            }
        } else {
            $this->stampCreated();
        }
    }
 
    public function getLifetime()
    {
        return $this->meta[self::LIFETIME];
    }
 
    public function stampNew($lifetime = null)
    {
        $this->stampCreated($lifetime);
    }
 
    public function getStorageKey()
    {
        return $this->storageKey;
    }
 
    public function getCreated()
    {
        return $this->meta[self::CREATED];
    }
 
    public function getLastUsed()
    {
        return $this->lastUsed;
    }
 
    public function clear()
    {
        // nothing to do
    }
 
    public function getName()
    {
        return $this->name;
    }
 
    public function setName($name)
    {
        $this->name = $name;
    }
 
    private function stampCreated(int $lifetime = null): void
    {
        $timeStamp = time();
        $this->meta[self::CREATED] = $this->meta[self::UPDATED] = $this->lastUsed = $timeStamp;
        $this->meta[self::LIFETIME] = (null === $lifetime) ? ini_get('session.cookie_lifetime') : $lifetime;
    }
}