org.springframework.security.web.authentication.ForwardAuthenticationFailureHandler Maven / Gradle / Ivy
/*
* Copyright 2002-2018 the original author or 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.springframework.security.web.authentication;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.WebAttributes;
import org.springframework.security.web.util.UrlUtils;
import org.springframework.util.Assert;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
/**
*
* Forward Authentication Failure Handler
*
*
* @author Shazin Sadakath
* @since 4.1
*/
public class ForwardAuthenticationFailureHandler implements AuthenticationFailureHandler {
private final String forwardUrl;
/**
* @param forwardUrl
*/
public ForwardAuthenticationFailureHandler(String forwardUrl) {
Assert.isTrue(UrlUtils.isValidRedirectUrl(forwardUrl),
() -> "'" + forwardUrl + "' is not a valid forward URL");
this.forwardUrl = forwardUrl;
}
public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response, AuthenticationException exception) throws IOException, ServletException {
request.setAttribute(WebAttributes.AUTHENTICATION_EXCEPTION, exception);
request.getRequestDispatcher(forwardUrl).forward(request, response);
}
}