| /* |
| * 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.nifi.hadoop; |
| |
| import org.apache.hadoop.security.authentication.util.KerberosUtil; |
| |
| import javax.security.auth.login.AppConfigurationEntry; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * Modified Kerberos configuration class from {@link org.apache.hadoop.security.authentication.client.KerberosAuthenticator.KerberosConfiguration} |
| * that requires authentication from a keytab. |
| */ |
| public class KerberosConfiguration extends javax.security.auth.login.Configuration { |
| |
| private static final Map<String, String> USER_KERBEROS_OPTIONS = new HashMap<>(); |
| private static final AppConfigurationEntry USER_KERBEROS_LOGIN; |
| private static final AppConfigurationEntry[] USER_KERBEROS_CONF; |
| |
| KerberosConfiguration(String principal, String keytab) { |
| USER_KERBEROS_OPTIONS.put("principal", principal); |
| USER_KERBEROS_OPTIONS.put("keyTab", keytab); |
| } |
| |
| public AppConfigurationEntry[] getAppConfigurationEntry(String appName) { |
| return USER_KERBEROS_CONF; |
| } |
| |
| static { |
| USER_KERBEROS_OPTIONS.put("doNotPrompt", "true"); |
| USER_KERBEROS_OPTIONS.put("useKeyTab", "true"); |
| USER_KERBEROS_OPTIONS.put("refreshKrb5Config", "true"); |
| USER_KERBEROS_LOGIN = new AppConfigurationEntry(KerberosUtil.getKrb5LoginModuleName(), AppConfigurationEntry.LoginModuleControlFlag.REQUIRED, USER_KERBEROS_OPTIONS); |
| USER_KERBEROS_CONF = new AppConfigurationEntry[]{USER_KERBEROS_LOGIN}; |
| } |
| |
| } |