private function error($header, $body)
{
list($status, $stash) = explode("\r\n", $header, 2);
list($v, $code, $message) = explode(" ", $status, 3);
$message = is_null($message) ? 'File Not Found' : "[{$status}]:{$message}]";
$this->error = $message;
$this->errorStr = json_decode($body, 1);
$this->errorStr = $this->errorStr['error'];
}