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

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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;

/**
 * MockFileSessionStorage is used to mock sessions for
 * functional testing where you may need to persist session data
 * across separate PHP processes.
 *
 * No PHP session is actually started since a session can be initialized
 * and shutdown only once per PHP execution cycle and this class does
 * not pollute any session related globals, including session_*() functions
 * or session.* PHP ini directives.
 *
 * @author Drak <drak@zikula.org>
 */
class MockFileSessionStorage extends MockArraySessionStorage
{
    private $savePath;

    /**
     * @param string|null $savePath Path of directory to save session files
     */
    public function __construct(string $savePath = null, string $name = 'MOCKSESSID', MetadataBag $metaBag = null)
    {
        if (null === $savePath) {
            $savePath = sys_get_temp_dir();
        }

        if (!is_dir($savePath) && !@mkdir($savePath, 0777, true) && !is_dir($savePath)) {
            throw new \RuntimeException(sprintf('Session Storage was not able to create directory "%s".', $savePath));
        }

        $this->savePath = $savePath;

        parent::__construct($name, $metaBag);
    }

    /**
     * {@inheritdoc}
     */
    public function start()
    {
        if ($this->started) {
            return true;
        }

        if (!$this->id) {
            $this->id = $this->generateId();
        }