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<?php
namespace Core;
/**
* Session class
*
* @package core
* @author Frederic Guillot
*/
class Session
{
/**
* Sesion lifetime
*
* http://php.net/manual/en/session.configuration.php#ini.session.cookie-lifetime
*
* @var integer
*/
const SESSION_LIFETIME = 0; // Until the browser is closed
/**
* Open a session
*
* @access public
* @param string $base_path Cookie path
* @param string $save_path Custom session save path
*/
public function open($base_path = '/', $save_path = '')
{
if ($save_path !== '') {
session_save_path($save_path);
}
// HttpOnly and secure flags for session cookie
session_set_cookie_params(
self::SESSION_LIFETIME,
$base_path ?: '/',
null,
Tool::isHTTPS(),
true
);
// Avoid session id in the URL
ini_set('session.use_only_cookies', '1');
// Ensure session ID integrity
ini_set('session.entropy_file', '/dev/urandom');
ini_set('session.entropy_length', '32');
ini_set('session.hash_bits_per_character', 6);
// If session was autostarted with session.auto_start = 1 in php.ini destroy it, otherwise we cannot login
if (isset($_SESSION))
{
session_destroy();
}
// Custom session name
session_name('__S');
session_start();
// Regenerate the session id to avoid session fixation issue
if (empty($_SESSION['__validated'])) {
session_regenerate_id(true);
$_SESSION['__validated'] = 1;
}
}
/**
* Destroy the session
*
* @access public
*/
public function close()
{
// Flush all sessions variables
$_SESSION = array();
// Destroy the session cookie
if (ini_get('session.use_cookies')) {
$params = session_get_cookie_params();
setcookie(
session_name(),
'',
time() - 42000,
$params['path'],
$params['domain'],
$params['secure'],
$params['httponly']
);
}
// Destroy session data
session_destroy();
}
/**
* Register a flash message (success notification)
*
* @access public
* @param string $message Message
*/
public function flash($message)
{
$_SESSION['flash_message'] = $message;
}
/**
* Register a flash error message (error notification)
*
* @access public
* @param string $message Message
*/
public function flashError($message)
{
$_SESSION['flash_error_message'] = $message;
}
}
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