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ASF GitHub Bot commented on DRILL-4280: --------------------------------------- Github user sudheeshkatkam commented on a diff in the pull request: https://github.com/apache/drill/pull/578#discussion_r85853194 --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/rpc/user/UserAuthenticationUtil.java --- @@ -0,0 +1,248 @@ +/** + * 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.drill.exec.rpc.user; + +import com.google.common.base.Function; +import com.google.common.base.Strings; +import com.google.common.collect.ImmutableSet; +import com.google.common.collect.Iterators; +import org.apache.drill.common.KerberosUtil; +import org.apache.drill.common.config.ConnectionParameters; +import org.apache.hadoop.conf.Configuration; +import org.apache.hadoop.fs.CommonConfigurationKeys; +import org.apache.hadoop.security.UserGroupInformation; + +import javax.annotation.Nullable; +import javax.security.auth.callback.Callback; +import javax.security.auth.callback.CallbackHandler; +import javax.security.auth.callback.NameCallback; +import javax.security.auth.callback.PasswordCallback; +import javax.security.auth.callback.UnsupportedCallbackException; +import javax.security.auth.login.LoginException; +import javax.security.sasl.Sasl; +import javax.security.sasl.SaslClient; +import javax.security.sasl.SaslException; +import java.io.IOException; +import java.lang.reflect.UndeclaredThrowableException; +import java.security.PrivilegedExceptionAction; +import java.util.List; +import java.util.Set; + +public final class UserAuthenticationUtil { + private static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(UserAuthenticationUtil.class); + + private static final String PLAIN_MECHANISM = "PLAIN"; + + private static final String DEFAULT_SERVICE_NAME = System.getProperty("service.name.primary", "drill"); + + private static final String DEFAULT_REALM_NAME = System.getProperty("service.name.realm", "default"); + + public enum ClientAuthenticationProvider { + + KERBEROS { + @Override + public UserGroupInformation login(final ConnectionParameters parameters) throws SaslException { + final Configuration conf = new Configuration(); + conf.set(CommonConfigurationKeys.HADOOP_SECURITY_AUTHENTICATION, + UserGroupInformation.AuthenticationMethod.KERBEROS.toString()); + UserGroupInformation.setConfiguration(conf); + + final String keytab = parameters.getParameter(ConnectionParameters.KEYTAB); + try { + final UserGroupInformation ugi; + if (keytab != null) { + ugi = UserGroupInformation.loginUserFromKeytabAndReturnUGI( + parameters.getParameter(ConnectionParameters.USER), keytab); + logger.debug("Logged in using keytab."); + } else { + // includes Kerberos ticket login + ugi = UserGroupInformation.getCurrentUser(); + logger.debug("Logged in using ticket."); + } + return ugi; + } catch (final IOException e) { + logger.debug("Login failed.", e); + final Throwable cause = e.getCause(); + if (cause instanceof LoginException) { + throw new SaslException("Failed to login.", cause); + } + throw new SaslException("Unexpected failure trying to login: " + cause.getMessage()); --- End diff -- Done. > Kerberos Authentication > ----------------------- > > Key: DRILL-4280 > URL: https://issues.apache.org/jira/browse/DRILL-4280 > Project: Apache Drill > Issue Type: Improvement > Reporter: Keys Botzum > Assignee: Chunhui Shi > Labels: security > > Drill should support Kerberos based authentication from clients. This means > that both the ODBC and JDBC drivers as well as the web/REST interfaces should > support inbound Kerberos. For Web this would most likely be SPNEGO while for > ODBC and JDBC this will be more generic Kerberos. > Since Hive and much of Hadoop supports Kerberos there is a potential for a > lot of reuse of ideas if not implementation. > Note that this is related to but not the same as > https://issues.apache.org/jira/browse/DRILL-3584 -- This message was sent by Atlassian JIRA (v6.3.4#6332)