Mega Code Archive
Filter that wraps an HttpServletRequest to override isUserInRole
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/*
* $Id: SecurityWrappingFilter.java 637430 2008-03-15 15:38:35Z apetrelli $
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;
/**
* Filter that wraps an HttpServletRequest to override "isUserInRole".
*
* @version $Rev: 637430 $ $Date: 2008-03-15 16:38:35 +0100 (Sat, 15 Mar 2008) $
*/
public class SecurityWrappingFilter implements Filter {
/**
* The role that the current user is supposed to use.
*/
public static final String GOOD_ROLE = "goodrole";
/** {@inheritDoc} */
public void init(FilterConfig filterConfig) throws ServletException {
// No operation
}
/** {@inheritDoc} */
public void doFilter(ServletRequest servletRequest,
ServletResponse servletResponse, FilterChain filterChain)
throws IOException, ServletException {
HttpServletRequest wrappedRequest = new SecurityWrapperHttpServletRequest(
(HttpServletRequest) servletRequest);
filterChain.doFilter(wrappedRequest, servletResponse);
}
/** {@inheritDoc} */
public void destroy() {
// No operation
}
/**
* Request wrapper that overrides "isUserInRole" method.
*
* @version $Rev: 637430 $ $Date: 2008-03-15 16:38:35 +0100 (Sat, 15 Mar 2008) $
*/
private static class SecurityWrapperHttpServletRequest extends
HttpServletRequestWrapper {
/**
* Constructor.
*
* @param request The HTTP servlet request.
*/
public SecurityWrapperHttpServletRequest(HttpServletRequest request) {
super(request);
}
/** {@inheritDoc} */
@Override
public boolean isUserInRole(String role) {
return GOOD_ROLE.equals(role);
}
}
}
]]>