/**
* Action to generate a new Google Authenticator secret for the current user
*
* @return string
* @throws \Exception
* @throws \Piwik\NoAccessException
*/
public function regenerate()
{
Piwik::checkUserIsNotAnonymous();
$view = new View('@GoogleAuthenticator/regenerate');
$this->setGeneralVariablesView($view);
$googleAuth = new PHPGangsta\GoogleAuthenticator();
$storage = new Storage(Piwik::getCurrentUserLogin());
$secret = Common::getRequestVar('gasecret', '', 'string');
$authCode = Common::getRequestVar('gaauthcode', '', 'string');
$authCodeNonce = Common::getRequestVar('authCodeNonce', '', 'string');
$title = Common::getRequestVar('gatitle', $storage->getTitle(), 'string');
$description = Common::getRequestVar('gadescription', $storage->getDescription(), 'string');
if (!empty($secret) && !empty($authCode) && Nonce::verifyNonce(self::AUTH_CODE_NONCE, $authCodeNonce) && $googleAuth->verifyCode($secret, $authCode, 2)) {
$storage->setSecret($secret);
$storage->setDescription($description);
$storage->setTitle($title);
$this->auth->setAuthCode($authCode);
$this->auth->validateAuthCode();
Url::redirectToUrl(Url::getCurrentUrlWithoutQueryString() . Url::getCurrentQueryStringWithParametersModified(array('action' => 'settings', 'activate' => '1')));
}
if (empty($secret)) {
$secret = $googleAuth->createSecret(32);
}
$view->title = $title;
$view->description = $description;
$view->authCodeNonce = Nonce::getNonce(self::AUTH_CODE_NONCE);
$view->newSecret = $secret;
$view->googleAuthImage = $googleAuth->getQRCodeGoogleUrl($description, $secret, $title);
return $view->render();
}