/**
* Generates a QrCode
*
* @param string $text The text to be converted into a QrCode
* @param null|string $filename The filename and path to save the QrCode file
* @return string|void Returns a QrCode string depending on the format, or saves to a file.
*/
public function generate($text, $filename = null)
{
if ($filename === null) {
return $this->writer->writeString($text, $this->encoding, $this->errorCorrection);
} else {
$this->writer->writeFile($text, $filename, $this->encoding, $this->errorCorrection);
}
}
public function renderQrCodeAction()
{
/** @var AccountInterface $account */
$account = $this->zourceAccount();
$oneTimePassword = new TOTP($account->getContact()->getFullName(), $this->tfaService->getSecret());
$oneTimePassword->setIssuer('Zource');
$oneTimePassword->setIssuerIncludedAsParameter(true);
$oneTimePassword->setParameter('image', $this->url()->fromRoute('settings/security/tfa-image', [], ['force_canonical' => true]));
$filePath = tempnam('data/tmp/', '2fa-qr-');
$renderer = new Png();
$renderer->setHeight(256);
$renderer->setWidth(256);
$writer = new Writer($renderer);
$writer->writeFile($oneTimePassword->getProvisioningUri(true), $filePath);
$response = new Stream();
$response->setCleanup(true);
$response->setStream(fopen($filePath, 'rb'));
$response->setStreamName($filePath);
$headers = $response->getHeaders();
$headers->addHeaderLine('Content-Length', filesize($filePath));
$headers->addHeaderLine('Content-Type', 'image/png');
return $response;
}