001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018package org.apache.hadoop.hbase.rest; 019 020import java.io.IOException; 021import javax.servlet.Filter; 022import javax.servlet.FilterChain; 023import javax.servlet.FilterConfig; 024import javax.servlet.ServletException; 025import javax.servlet.ServletRequest; 026import javax.servlet.ServletResponse; 027import javax.servlet.http.HttpServletRequest; 028import javax.servlet.http.HttpServletResponse; 029import org.slf4j.Logger; 030import org.slf4j.LoggerFactory; 031 032public class DummyFilter implements Filter { 033 private static final Logger LOG = LoggerFactory.getLogger(DummyFilter.class); 034 035 @Override 036 public void destroy() { 037 } 038 039 @Override 040 public void doFilter(ServletRequest paramServletRequest, ServletResponse paramServletResponse, 041 FilterChain paramFilterChain) throws IOException, ServletException { 042 if ( 043 paramServletRequest instanceof HttpServletRequest 044 && paramServletResponse instanceof HttpServletResponse 045 ) { 046 HttpServletRequest request = (HttpServletRequest) paramServletRequest; 047 HttpServletResponse response = (HttpServletResponse) paramServletResponse; 048 049 String path = request.getRequestURI(); 050 LOG.info(path); 051 if (path.indexOf("/status/cluster") >= 0) { 052 LOG.info("Blocking cluster status request"); 053 response.sendError(HttpServletResponse.SC_NOT_FOUND, "Cluster status cannot be requested."); 054 } else { 055 paramFilterChain.doFilter(request, response); 056 } 057 } 058 } 059 060 @Override 061 public void init(FilterConfig filterChain) throws ServletException { 062 } 063 064}