| /* |
| * 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.calcite.avatica.server; |
| |
| import org.apache.calcite.avatica.remote.ClientKeytabJaasConf; |
| |
| import java.io.File; |
| import java.security.Principal; |
| import java.util.HashSet; |
| import java.util.Set; |
| import javax.security.auth.Subject; |
| import javax.security.auth.kerberos.KerberosPrincipal; |
| import javax.security.auth.login.Configuration; |
| import javax.security.auth.login.LoginContext; |
| import javax.security.auth.login.LoginException; |
| |
| /** |
| * Copy of JaasKrbUtil from Kerby that works with IBM Java as well as Oracle Java. |
| */ |
| public class AvaticaJaasKrbUtil { |
| |
| private AvaticaJaasKrbUtil() {} |
| |
| public static Subject loginUsingKeytab( |
| String principal, File keytabFile) throws LoginException { |
| Set<Principal> principals = new HashSet<Principal>(); |
| principals.add(new KerberosPrincipal(principal)); |
| |
| Subject subject = new Subject(false, principals, |
| new HashSet<Object>(), new HashSet<Object>()); |
| |
| Configuration conf = useKeytab(principal, keytabFile); |
| String confName = "KeytabConf"; |
| LoginContext loginContext = new LoginContext(confName, subject, null, conf); |
| loginContext.login(); |
| return loginContext.getSubject(); |
| } |
| |
| public static Configuration useKeytab(String principal, File keytabFile) { |
| return new ClientKeytabJaasConf(principal, keytabFile.toString()); |
| } |
| } |
| |
| // End AvaticaJaasKrbUtil.java |