function process($parameters)
{
$fakturoid = new FakturoidWrapper();
if (!$fakturoid->checkLogin()) {
$this->redirect('error');
}
$fakturoidInvoiceId = null;
if (isset($parameters[0])) {
$fakturoidInvoiceId = $parameters[0];
} else {
$this->redirect('error');
}
$userOfInvoice = $fakturoid->getUserIdFromInvoiceId($fakturoidInvoiceId);
//if not admin of the right place then throw error
if ($userOfInvoice != $_SESSION['id_user'] && !$fakturoid->checkIfIsAdminOfUser($_SESSION['id_user'], $userOfInvoice)) {
$this->redirect('error');
}
$pdf = $fakturoid->getInvoiceAsPdf($fakturoidInvoiceId);
$this->displayPdf($pdf);
}