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<?php
namespace Kanboard\Core\Session;
use Kanboard\Core\Base;
/**
* Session Manager
*
* @package Kanboard\Core\Session
* @author Frederic Guillot
*/
class SessionManager extends Base
{
/**
* Event names
*
* @var string
*/
const EVENT_DESTROY = 'session.destroy';
/**
* Return true if the session is open
*
* @static
* @access public
* @return boolean
*/
public static function isOpen()
{
return session_id() !== '';
}
/**
* Create a new session
*
* @access public
*/
public function open()
{
session_set_save_handler(new SessionHandler($this->db), true);
$this->configure();
if (ini_get('session.auto_start') == 1) {
session_destroy();
}
session_name('KB_SID');
session_start();
}
/**
* Destroy the session
*
* @access public
*/
public function close()
{
$this->dispatcher->dispatch(self::EVENT_DESTROY);
// Destroy the session cookie
$params = session_get_cookie_params();
setcookie(
session_name(),
'',
time() - 42000,
$params['path'],
$params['domain'],
$params['secure'],
$params['httponly']
);
session_unset();
session_destroy();
}
/**
* Define session settings
*
* @access private
*/
private function configure()
{
// Session cookie: HttpOnly and secure flags
session_set_cookie_params(
SESSION_DURATION,
$this->helper->url->dir() ?: '/',
null,
$this->request->isHTTPS(),
true
);
// Avoid session id in the URL
ini_set('session.use_only_cookies', '1');
ini_set('session.use_trans_sid', '0');
// Enable strict mode
ini_set('session.use_strict_mode', '1');
// Better session hash
ini_set('session.hash_function', '1'); // 'sha512' is not compatible with FreeBSD, only MD5 '0' and SHA-1 '1' seems to work
ini_set('session.hash_bits_per_character', 6);
// Set an additional entropy
ini_set('session.entropy_file', '/dev/urandom');
ini_set('session.entropy_length', '256');
}
}
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