| /* |
| * 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.storm.daemon.ui; |
| |
| import java.io.IOException; |
| import java.security.Principal; |
| 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; |
| |
| /** |
| * A simple UI filter that should only be used for testing purposes. To set a given user name, |
| * set an init parameter of USER_NAME to be the name of the user you want the UI to always impersonate. |
| */ |
| public class TestingFilter implements Filter { |
| private static final Logger LOG = LoggerFactory.getLogger(TestingFilter.class); |
| |
| private String userName = "unknown_user"; |
| |
| @Override |
| public void init(FilterConfig filterConfig) throws ServletException { |
| String userName = filterConfig.getInitParameter("USER_NAME"); |
| if (userName != null) { |
| this.userName = userName; |
| LOG.info("Will use {} as the user name for all http requests", userName); |
| } |
| } |
| |
| @Override |
| public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) |
| throws IOException, ServletException { |
| ServletRequest filteredRequest = new HttpServletRequestWrapper((HttpServletRequest) servletRequest) { |
| @Override |
| public String getRemoteUser() { |
| return userName; |
| } |
| |
| @Override |
| public Principal getUserPrincipal() { |
| return () -> userName; |
| } |
| }; |
| LOG.debug("Changing user name to {}", userName); |
| filterChain.doFilter(filteredRequest, servletResponse); |
| } |
| |
| @Override |
| public void destroy() { |
| //NOOP |
| } |
| } |