}
@Post("/auth/facebook")
public void login(final String profile) {
LOGGER.debug("logging in user " + profile);
final SystemUser user = facebook.connectedOrFindUserFor(profile);
SystemUser toLogin = facebook.createOrConnectUser(profile, user);
if (toLogin == null) {
validator.add(new I18nMessage("vraptor.inexisting_facebook_user",
"vraptor.inexisting_facebook_user"));
validator.onErrorUse(page()).redirectTo("/");
} else {