org.apache.zeppelin.jdbc.security.JDBCSecurityImpl Maven / Gradle / Ivy
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* 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.zeppelin.jdbc.security;
import static org.apache.hadoop.security.UserGroupInformation.AuthenticationMethod.KERBEROS;
import static org.apache.hadoop.security.UserGroupInformation.AuthenticationMethod.SIMPLE;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.security.UserGroupInformation.AuthenticationMethod;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.util.Properties;
/**
* Created for org.apache.zeppelin.jdbc.security on 09/07/16.
*/
public class JDBCSecurityImpl {
private static final Logger LOGGER = LoggerFactory.getLogger(JDBCSecurityImpl.class);
/***
* @param properties
*/
public static void createSecureConfiguration(Properties properties,
AuthenticationMethod authType) {
switch (authType) {
case KERBEROS:
Configuration conf = new
org.apache.hadoop.conf.Configuration();
conf.set("hadoop.security.authentication", KERBEROS.toString());
UserGroupInformation.setConfiguration(conf);
try {
// Check TGT before calling login
// Ref: https://github.com/apache/hadoop/blob/release-3.0.1-RC1/hadoop-common-project/
// hadoop-common/src/main/java/org/apache/hadoop/security/UserGroupInformation.java#L1232
if (!UserGroupInformation.isSecurityEnabled()
|| UserGroupInformation.getCurrentUser().getAuthenticationMethod() != KERBEROS
|| !UserGroupInformation.isLoginKeytabBased()) {
String keytab = properties.getProperty("zeppelin.jdbc.keytab.location");
String principal = properties.getProperty("zeppelin.jdbc.principal");
UserGroupInformation.loginUserFromKeytab(principal, keytab);
LOGGER.info("Login successfully via keytab: {} and principal: {}", keytab, principal);
} else {
UserGroupInformation.getCurrentUser().checkTGTAndReloginFromKeytab();
LOGGER.info("The user has already logged in using Keytab and principal, " +
"will check tgt and whether to re-login");
}
} catch (IOException e) {
LOGGER.error("Failed to get either keytab location or principal name in the " +
"interpreter", e);
}
}
}
public static AuthenticationMethod getAuthType(Properties properties) {
AuthenticationMethod authType;
try {
authType = AuthenticationMethod.valueOf(properties.getProperty("zeppelin.jdbc.auth.type")
.trim().toUpperCase());
} catch (Exception e) {
LOGGER.error(String.format("Invalid auth.type detected with value %s, defaulting " +
"auth.type to SIMPLE", properties.getProperty("zeppelin.jdbc.auth.type")));
authType = SIMPLE;
}
return authType;
}
}