| /** |
| * 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.hadoop.yarn.server.security.http; |
| |
| import java.io.IOException; |
| |
| 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.apache.hadoop.classification.InterfaceAudience.Private; |
| import org.apache.hadoop.classification.InterfaceStability.Unstable; |
| import org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSecretManager; |
| import org.apache.hadoop.security.token.delegation.web.DelegationTokenAuthenticationFilter; |
| import org.apache.hadoop.security.token.delegation.web.DelegationTokenAuthenticator; |
| |
| @Private |
| @Unstable |
| public class RMAuthenticationFilter extends |
| DelegationTokenAuthenticationFilter { |
| |
| static private AbstractDelegationTokenSecretManager<?> manager; |
| private static final String OLD_HEADER = "Hadoop-YARN-Auth-Delegation-Token"; |
| |
| public RMAuthenticationFilter() { |
| } |
| |
| @Override |
| public void init(FilterConfig filterConfig) throws ServletException { |
| filterConfig.getServletContext().setAttribute( |
| DelegationTokenAuthenticationFilter.DELEGATION_TOKEN_SECRET_MANAGER_ATTR, |
| manager); |
| super.init(filterConfig); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void doFilter(ServletRequest request, ServletResponse response, |
| FilterChain filterChain) throws IOException, ServletException { |
| HttpServletRequest req = (HttpServletRequest) request; |
| String newHeader = |
| req.getHeader(DelegationTokenAuthenticator.DELEGATION_TOKEN_HEADER); |
| if (newHeader == null || newHeader.isEmpty()) { |
| // For backward compatibility, allow use of the old header field |
| // only when the new header doesn't exist |
| final String oldHeader = req.getHeader(OLD_HEADER); |
| if (oldHeader != null && !oldHeader.isEmpty()) { |
| request = new HttpServletRequestWrapper(req) { |
| @Override |
| public String getHeader(String name) { |
| if (name |
| .equals(DelegationTokenAuthenticator.DELEGATION_TOKEN_HEADER)) { |
| return oldHeader; |
| } |
| return super.getHeader(name); |
| } |
| }; |
| } |
| } |
| super.doFilter(request, response, filterChain); |
| } |
| |
| public static void setDelegationTokenSecretManager( |
| AbstractDelegationTokenSecretManager<?> manager) { |
| RMAuthenticationFilter.manager = manager; |
| } |
| } |