| /* |
| * 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.phoenix.queryserver.client; |
| |
| import java.io.IOException; |
| import java.util.HashMap; |
| |
| import javax.security.auth.Subject; |
| import javax.security.auth.callback.Callback; |
| import javax.security.auth.callback.CallbackHandler; |
| import javax.security.auth.callback.UnsupportedCallbackException; |
| import javax.security.auth.login.AppConfigurationEntry; |
| import javax.security.auth.login.Configuration; |
| import javax.security.auth.login.LoginContext; |
| import javax.security.auth.login.LoginException; |
| |
| public class KerberosLoginFromTicketCache { |
| |
| public static Subject login() throws LoginException { |
| |
| Configuration kerberosConfig = new KerberosConfiguration(); |
| Subject subject = new Subject(); |
| |
| LoginContext lc = new LoginContext("PhoenixThinClient", subject, new CallbackHandler() { |
| @Override |
| public void handle(Callback[] callbacks) |
| throws IOException, UnsupportedCallbackException { |
| throw new UnsupportedCallbackException(callbacks[0], |
| "Only ticket cache is supported"); |
| } |
| }, kerberosConfig); |
| |
| lc.login(); |
| return subject; |
| } |
| |
| private static class KerberosConfiguration extends Configuration { |
| private static final String IBM_KRB5_LOGIN_MODULE = |
| "com.ibm.security.auth.module.Krb5LoginModule"; |
| private static final String SUN_KRB5_LOGIN_MODULE = |
| "com.sun.security.auth.module.Krb5LoginModule"; |
| |
| private static final String JAVA_VENDOR_NAME = System.getProperty("java.vendor"); |
| private static final boolean IS_IBM_JAVA = JAVA_VENDOR_NAME.contains("IBM"); |
| |
| @Override |
| public AppConfigurationEntry[] getAppConfigurationEntry(String name) { |
| HashMap<String, Object> options = new HashMap<>(); |
| |
| if(IS_IBM_JAVA) { |
| //Also see https://www.ibm.com/support/pages/how-enable-strong-encryption-128-bit |
| |
| // This is inferior to the sun class, as it won't work if the kerberos and unix |
| // users don't match, while that one take any principal from the cache |
| options.put("principal", System.getProperty("user.name")); |
| options.put("useDefaultCcache", "true"); |
| return new AppConfigurationEntry[] { new AppConfigurationEntry( |
| IBM_KRB5_LOGIN_MODULE, AppConfigurationEntry.LoginModuleControlFlag.REQUIRED, |
| options) }; |
| } else { |
| options.put("useTicketCache", "true"); |
| options.put("doNotPrompt", "true"); |
| return new AppConfigurationEntry[] { new AppConfigurationEntry( |
| SUN_KRB5_LOGIN_MODULE, AppConfigurationEntry.LoginModuleControlFlag.REQUIRED, |
| options) }; |
| } |
| } |
| } |
| |
| } |