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<?php
class AutoConnectData
{
private static $querier;
public static function __static()
{
self::$querier = PersistenceContext::get_querier();
}
public static function get_user_id_from_cookie($cookie_content)
{
$autoconnect = TextHelper::unserialize($cookie_content);
if ($autoconnect === false || empty($autoconnect['user_id']) || empty($autoconnect['key']))
{
throw new UnexpectedValueException('invalid autoconnect cookie content: "' . $cookie_content . '"');
}
$data = new AutoConnectData($autoconnect['user_id'], $autoconnect['key']);
if ($data->is_valid())
{
return $autoconnect['user_id'];
}
return Session::VISITOR_SESSION_ID;
}
public static function create_cookie($user_id)
{
$data = $row = null;
$columns = array('autoconnect_key');
$condition = 'WHERE user_id=:user_id';
$parameters = array('user_id' => $user_id);
try {
$row = self::$querier->select_single_row(DB_TABLE_MEMBER, $columns, $condition, $parameters);
} catch (RowNotFoundException $e) { }
if (!empty($row) && !empty($row['autoconnect_key']))
{
$data = new AutoConnectData($user_id, $row['autoconnect_key']);
}
else
{
$data = self::change_key($user_id);
}
$data->save();
}
public static function change_key($user_id)
{
$data = new AutoConnectData($user_id, KeyGenerator::generate_key(64));
$data->save_in_db();
return $data;
}
private $user_id;
private $key;
private function __construct($user_id, $key)
{
$this->user_id = $user_id;
$this->key = $key;
}
public function get_user_id()
{
return $this->user_id;
}
public function is_valid()
{
$condition = 'WHERE user_id=:user_id AND autoconnect_key=:key';
$parameters = array('user_id' => $this->user_id, 'key' => $this->key);
return self::$querier->row_exists(DB_TABLE_MEMBER, $condition, $parameters);
}
public function save()
{
$this->save_in_db();
$this->save_in_cookie();
}
private function save_in_db()
{
$condition = 'WHERE user_id=:user_id';
$parameters = array('user_id' => $this->user_id);
$columns = array('autoconnect_key' => $this->key);
self::$querier->update(DB_TABLE_MEMBER, $columns, $condition, $parameters);
}
private function save_in_cookie()
{
$expiry = time() + SessionsConfig::load()->get_autoconnect_duration();
$cookie = new HTTPCookie(Session::$AUTOCONNECT_COOKIE_NAME, $this->get_serialized_content(), $expiry);
AppContext::get_response()->set_cookie($cookie);
}
private function get_serialized_content()
{
return TextHelper::serialize(array('user_id' => $this->user_id, 'key' => $this->key));
}
}
?>