| /** |
| * 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.hdfsproxy; |
| |
| import java.io.IOException; |
| import java.net.URI; |
| import java.net.URISyntaxException; |
| |
| import javax.servlet.http.HttpServletRequest; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hdfs.protocol.ClientProtocol; |
| import org.apache.hadoop.hdfs.protocol.HdfsFileStatus; |
| import org.apache.hadoop.hdfs.server.namenode.FileDataServlet; |
| import org.apache.hadoop.security.UserGroupInformation; |
| |
| /** {@inheritDoc} */ |
| public class ProxyFileDataServlet extends FileDataServlet { |
| /** For java.io.Serializable */ |
| private static final long serialVersionUID = 1L; |
| |
| /** {@inheritDoc} */ |
| @Override |
| protected URI createUri(String parent, HdfsFileStatus i, UserGroupInformation ugi, |
| ClientProtocol nnproxy, HttpServletRequest request) throws IOException, |
| URISyntaxException { |
| return new URI(request.getScheme(), null, request.getServerName(), request |
| .getServerPort(), "/streamFile", "filename=" + i.getFullName(parent) |
| + "&ugi=" + ugi.getShortUserName(), null); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| protected UserGroupInformation getUGI(HttpServletRequest request, |
| Configuration conf) { |
| String userID = (String) request |
| .getAttribute("org.apache.hadoop.hdfsproxy.authorized.userID"); |
| return ProxyUtil.getProxyUGIFor(userID); |
| } |
| } |