001    /**
002     *
003     * Copyright 2006 The Apache Software Foundation
004     *
005     *  Licensed under the Apache License, Version 2.0 (the "License");
006     *  you may not use this file except in compliance with the License.
007     *  You may obtain a copy of the License at
008     *
009     *     http://www.apache.org/licenses/LICENSE-2.0
010     *
011     *  Unless required by applicable law or agreed to in writing, software
012     *  distributed under the License is distributed on an "AS IS" BASIS,
013     *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     *  See the License for the specific language governing permissions and
015     *  limitations under the License.
016     */
017    
018    package org.apache.geronimo.jetty;
019    
020    import java.io.IOException;
021    
022    import javax.servlet.ServletException;
023    import javax.servlet.UnavailableException;
024    import javax.servlet.http.HttpServletRequest;
025    import javax.servlet.http.HttpServletResponse;
026    
027    import org.apache.geronimo.security.Callers;
028    import org.apache.geronimo.security.ContextManager;
029    import org.mortbay.jetty.servlet.ServletHolder;
030    import org.mortbay.jetty.servlet.WebApplicationHandler;
031    
032    /**
033     * @version $Rev: 437254 $ $Date: 2006-08-26 17:07:55 -0700 (Sat, 26 Aug 2006) $
034     */
035    public class JettyWebApplicationHandler extends WebApplicationHandler {
036    
037        /**
038         * Wrap the dispatch call to prevent leaking Subject back into the environemnt.
039         * 
040         * @param pathInContext
041         * @param request
042         * @param response
043         * @param servletHolder
044         * @param type
045         * @throws ServletException
046         * @throws UnavailableException
047         * @throws IOException
048         */
049        protected void dispatch(String pathInContext,
050                                HttpServletRequest request,
051                                HttpServletResponse response,
052                                ServletHolder servletHolder,
053                                int type)
054            throws ServletException, UnavailableException, IOException
055        {
056            Callers oldCallers = ContextManager.getCallers();
057            try {
058                super.dispatch(pathInContext, request, response, servletHolder, type);
059            } finally {
060                ContextManager.popCallers(oldCallers);
061            }
062    
063        }
064    }