org.vaadin.spring.security.web.authentication.VaadinAuthenticationFailureHandler Maven / Gradle / Ivy
/*
* Copyright 2015 The original authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.vaadin.spring.security.web.authentication;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.authentication.AuthenticationFailureHandler;
/**
* Strategy used to handle a failed authentication attempt.
*
* Typical behaviour might be to redirect the user to the authentication page (in the case of a form login) to
* allow them to try again. More sophisticated logic might be implemented depending on the type of the exception.
* For example, a {@link org.springframework.security.authentication.CredentialsExpiredException} might cause a redirect to a web controller which allowed the
* user to change their password.
*
* Vaadin Specific Strategy of {@link AuthenticationFailureHandler}
*/
public interface VaadinAuthenticationFailureHandler {
/**
* Called when an authentication attempt fails.
* @param exception the exception which was thrown to reject the authentication request.
*/
void onAuthenticationFailure(AuthenticationException exception) throws Exception;
}