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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\SessionStorage;
/**
* NativeSessionStorage.
*
* @author Fabien Potencier <fabien@symfony.com>
*
* @api
*/
class NativeSessionStorage implements SessionStorageInterface
{
static protected $sessionIdRegenerated = false;
static protected $sessionStarted = false;
protected $options;
/**
* Available options:
*
* * name: The cookie name (null [omitted] by default)
* * id: The session id (null [omitted] by default)
* * lifetime: Cookie lifetime
* * path: Cookie path
* * domain: Cookie domain
* * secure: Cookie secure
* * httponly: Cookie http only
*
* The default values for most options are those returned by the session_get_cookie_params() function
*
* @param array $options An associative array of session options
*/
public function __construct(array $options = array())
{
$cookieDefaults = session_get_cookie_params();
$this->options = array_merge(array(
'lifetime' => $cookieDefaults['lifetime'],
'path' => $cookieDefaults['path'],
'domain' => $cookieDefaults['domain'],
'secure' => $cookieDefaults['secure'],
'httponly' => isset($cookieDefaults['httponly']) ? $cookieDefaults['httponly'] : false,
), $options);
// Skip setting new session name if user don't want it
if (isset($this->options['name'])) {
session_name($this->options['name']);
}
}
/**
* Starts the session.
*
* @api
*/
public function start()
{
if (self::$sessionStarted) {
return;
}
session_set_cookie_params(
$this->options['lifetime'],
$this->options['path'],
$this->options['domain'],
$this->options['secure'],
$this->options['httponly']
);
// disable native cache limiter as this is managed by HeaderBag directly
session_cache_limiter(false);
if (!ini_get('session.use_cookies') && isset($this->options['id']) && $this->options['id'] && $this->options['id'] != session_id()) {
session_id($this->options['id']);
}
session_start();
self::$sessionStarted = true;
}
/**
* {@inheritDoc}
*
* @api
*/
public function getId()
{
if (!self::$sessionStarted) {
throw new \RuntimeException('The session must be started before reading its ID');
}
return session_id();
}
/**
* Reads data from this storage.
*
* The preferred format for a key is directory style so naming conflicts can be avoided.
*
* @param string $key A unique key identifying your data
* @param string $default Default value
*
* @return mixed Data associated with the key
*
* @api
*/
public function read($key, $default = null)
{
return array_key_exists($key, $_SESSION) ? $_SESSION[$key] : $default;
}
/**
* Removes data from this storage.
*
* The preferred format for a key is directory style so naming conflicts can be avoided.
*
* @param string $key A unique key identifying your data
*
* @return mixed Data associated with the key
*
* @api
*/
public function remove($key)
{
$retval = null;
if (isset($_SESSION[$key])) {
$retval = $_SESSION[$key];
unset($_SESSION[$key]);
}
return $retval;
}
/**
* Writes data to this storage.
*
* The preferred format for a key is directory style so naming conflicts can be avoided.
*
* @param string $key A unique key identifying your data
* @param mixed $data Data associated with your key
*
* @api
*/
public function write($key, $data)
{
$_SESSION[$key] = $data;
}
/**
* Regenerates id that represents this storage.
*
* @param Boolean $destroy Destroy session when regenerating?
*
* @return Boolean True if session regenerated, false if error
*
* @api
*/
public function regenerate($destroy = false)
{
if (self::$sessionIdRegenerated) {
return;
}
session_regenerate_id($destroy);
self::$sessionIdRegenerated = true;
}
}
|
