| /** |
| * 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.activemq.util; |
| |
| 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; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| public class FilenameGuardFilter implements Filter { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(FilenameGuardFilter.class); |
| |
| public void destroy() { |
| // nothing to destroy |
| } |
| |
| public void init(FilterConfig config) throws ServletException { |
| // nothing to init |
| } |
| |
| public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { |
| if (request instanceof HttpServletRequest) { |
| HttpServletRequest httpRequest = (HttpServletRequest)request; |
| GuardedHttpServletRequest guardedRequest = new GuardedHttpServletRequest(httpRequest); |
| chain.doFilter(guardedRequest, response); |
| } else { |
| chain.doFilter(request, response); |
| } |
| } |
| |
| private static class GuardedHttpServletRequest extends HttpServletRequestWrapper { |
| |
| public GuardedHttpServletRequest(HttpServletRequest httpRequest) { |
| super(httpRequest); |
| } |
| |
| private String guard(String filename) { |
| String guarded = filename.replace(":", "_"); |
| if (LOG.isDebugEnabled()) { |
| LOG.debug("guarded " + filename + " to " + guarded); |
| } |
| return guarded; |
| } |
| |
| @Override |
| public String getParameter(String name) { |
| if (name.equals("Destination")) { |
| return guard(super.getParameter(name)); |
| } else { |
| return super.getParameter(name); |
| } |
| } |
| |
| @Override |
| public String getPathInfo() { |
| return guard(super.getPathInfo()); |
| } |
| |
| @Override |
| public String getPathTranslated() { |
| return guard(super.getPathTranslated()); |
| } |
| |
| @Override |
| public String getRequestURI() { |
| return guard(super.getRequestURI()); |
| } |
| } |
| } |