| /* |
| * 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. |
| */ |
| package org.apache.catalina.filters; |
| |
| |
| import java.io.IOException; |
| |
| import javax.servlet.FilterChain; |
| import javax.servlet.ServletException; |
| import javax.servlet.ServletRequest; |
| import javax.servlet.ServletResponse; |
| |
| import org.apache.catalina.comet.CometEvent; |
| import org.apache.catalina.comet.CometFilterChain; |
| import org.apache.juli.logging.Log; |
| import org.apache.juli.logging.LogFactory; |
| |
| |
| /** |
| * Concrete implementation of <code>RequestFilter</code> that filters |
| * based on the remote client's host name. |
| * |
| * @author Craig R. McClanahan |
| * |
| */ |
| public final class RemoteHostFilter extends RequestFilter { |
| |
| // ----------------------------------------------------- Instance Variables |
| |
| private static final Log log = LogFactory.getLog(RemoteHostFilter.class); |
| |
| |
| // --------------------------------------------------------- Public Methods |
| |
| /** |
| * Extract the desired request property, and pass it (along with the |
| * specified request and response objects and associated filter chain) to |
| * the protected <code>process()</code> method to perform the actual |
| * filtering. |
| * |
| * @param request The servlet request to be processed |
| * @param response The servlet response to be created |
| * @param chain The filter chain for this request |
| * |
| * @exception IOException if an input/output error occurs |
| * @exception ServletException if a servlet error occurs |
| */ |
| @Override |
| public void doFilter(ServletRequest request, ServletResponse response, |
| FilterChain chain) throws IOException, ServletException { |
| |
| process(request.getRemoteHost(), request, response, chain); |
| |
| } |
| |
| /** |
| * Extract the desired request property, and pass it (along with the comet |
| * event and filter chain) to the protected <code>process()</code> method |
| * to perform the actual filtering. |
| * |
| * @param event The comet event to be processed |
| * @param chain The filter chain for this event |
| * |
| * @exception IOException if an input/output error occurs |
| * @exception ServletException if a servlet error occurs |
| */ |
| @Override |
| public void doFilterEvent(CometEvent event, CometFilterChain chain) |
| throws IOException, ServletException { |
| processCometEvent(event.getHttpServletRequest().getRemoteHost(), |
| event, chain); |
| } |
| |
| @Override |
| protected Log getLogger() { |
| return log; |
| } |
| } |