public function httpGetForHtml()
{
$response = parent::httpGetForHtml();
$openIdMode = $this->getRequest()->getParameter('openid_mode');
if ($openIdMode) {
switch ($openIdMode) {
case 'cancel':
// Identification by means of OpenID failed.
throw new NotAuthenticatedException('OpenID athentication failed.');
case 'id_res':
// The identity provider has validated the user, so it can
// be set as current (as long as it's authorised).
try {
$user = Users::getFromIdentityProvider(new GoogleIdentityProvider());
Users::setCurrent($user);
// Redirect users to either the URL they originally
// requested, or to the index if the former is not
// available.
$response = new Redirection($this->getRequest());
$response->setNextUrl(Application::getCurrent()->popLastLocator() ?: '/');
} catch (NotAuthenticatedException $exception) {
// The current OpenID data is not valid. Request again.
$response = $this->getRequestIdentificationResponse();
}
break;
default:
throw new NotAuthenticatedException('Unsupported OpenID mode.');
}
} else {
// No OpenID response is present, so just ask for identity.
$response = $this->getRequestIdentificationResponse();
}
return $response;
}
