| /** |
| * 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.hbase.security; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hbase.security.UserProvider; |
| import org.apache.hadoop.security.UserGroupInformation; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.IOException; |
| import java.net.InetAddress; |
| import java.util.List; |
| import java.util.Map; |
| |
| import static org.apache.storm.Config.TOPOLOGY_AUTO_CREDENTIALS; |
| |
| /** |
| * This class provides util methods for storm-hbase connector communicating |
| * with secured HBase. |
| */ |
| public class HBaseSecurityUtil { |
| private static final Logger LOG = LoggerFactory.getLogger(HBaseSecurityUtil.class); |
| |
| public static final String STORM_KEYTAB_FILE_KEY = "storm.keytab.file"; |
| public static final String STORM_USER_NAME_KEY = "storm.kerberos.principal"; |
| private static UserProvider legacyProvider = null; |
| |
| public static UserProvider login(Map conf, Configuration hbaseConfig) throws IOException { |
| //Allowing keytab based login for backward compatibility. |
| if (UserGroupInformation.isSecurityEnabled() && (conf.get(TOPOLOGY_AUTO_CREDENTIALS) == null || |
| !(((List) conf.get(TOPOLOGY_AUTO_CREDENTIALS)).contains(AutoHBase.class.getName())))) { |
| LOG.info("Logging in using keytab as AutoHBase is not specified for " + TOPOLOGY_AUTO_CREDENTIALS); |
| //insure that if keytab is used only one login per process executed |
| if(legacyProvider == null) { |
| synchronized (HBaseSecurityUtil.class) { |
| if(legacyProvider == null) { |
| legacyProvider = UserProvider.instantiate(hbaseConfig); |
| String keytab = (String) conf.get(STORM_KEYTAB_FILE_KEY); |
| if (keytab != null) { |
| hbaseConfig.set(STORM_KEYTAB_FILE_KEY, keytab); |
| } |
| String userName = (String) conf.get(STORM_USER_NAME_KEY); |
| if (userName != null) { |
| hbaseConfig.set(STORM_USER_NAME_KEY, userName); |
| } |
| legacyProvider.login(STORM_KEYTAB_FILE_KEY, STORM_USER_NAME_KEY, |
| InetAddress.getLocalHost().getCanonicalHostName()); |
| } |
| } |
| } |
| return legacyProvider; |
| } else { |
| return UserProvider.instantiate(hbaseConfig); |
| } |
| } |
| } |