/*
 * Data Hub Service (DHuS) - For Space data distribution.
 * Copyright (C) 2013,2014,2015 GAEL Systems
 *
 * This file is part of DHuS software sources.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package fr.gael.dhus.spring.security.handler;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.authentication
      .AuthenticationFailureHandler;
import org.springframework.stereotype.Component;

@Component
public class LoginFailureHandler implements AuthenticationFailureHandler
{
   @Override
   public void onAuthenticationFailure (HttpServletRequest request,
      HttpServletResponse response, AuthenticationException exception)
      throws IOException, ServletException
   {
      response.setContentType ("text/plain");
      response.setStatus (HttpServletResponse.SC_UNAUTHORIZED);
      ServletOutputStream outputStream = response.getOutputStream ();
      outputStream.print (exception.getMessage ());
      outputStream.close ();
   }
}