nativefilesessionhandler.php

См. документацию.

<?php
 
namespace Bitrix\Main\Session\Handlers;
 
use Bitrix\Main\ArgumentException;
 
class NativeFileSessionHandler extends \SessionHandler //implements \SessionUpdateTimestampHandlerInterface
{
    public function __construct(array $options)
    {
        $savePath = $options['savePath'] ?? null;
        if ($savePath === null)
        {
            $savePath = ini_get('session.save_path');
        }
 
        $baseDir = $savePath;
        if ($count = substr_count($savePath, ';'))
        {
            if ($count > 2)
            {
                throw new ArgumentException('Invalid format for savePath', 'savePath');
            }
            $baseDir = ltrim(strrchr($savePath, ';'), ';');
        }
 
        if ($baseDir && !is_dir($baseDir) && !@mkdir($baseDir, 0777, true) && !is_dir($baseDir))
        {
//          throw new SystemException("Native file session handler was not able to create directory \"{$baseDir}\".");
        }
 
        ini_set('session.save_handler', 'files');
        ini_set('session.save_path', $savePath);
    }
}