@Post("/signin")
public void signin(String email, String password, String urlAfterLogin, String uriOnError) {
boolean isAuthenticated = authenticator.authenticate(email, password);
if (!isAuthenticated) {
validator.add(new I18nMessage("vraptor.mauth.signin.fail",
"vraptor.mauth.signin.fail"));
result.include("email", email);
result.include("lastUrl", urlAfterLogin);
if(uriOnError == null || uriOnError.equals("") || !uriVerifier.sameDomainAsMe(uriOnError)) {
validator.onErrorUse(page()).redirectTo("/");