dengzhhu653 commented on code in PR #6085: URL: https://github.com/apache/hive/pull/6085#discussion_r2373870389
########## service/src/java/org/apache/hive/service/auth/ldap/LdapGroupCallbackHandler.java: ########## @@ -0,0 +1,135 @@ +/* + * 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.hive.service.auth.ldap; + +import com.google.common.annotations.VisibleForTesting; +import org.apache.commons.lang3.StringUtils; +import org.apache.hadoop.hive.conf.HiveConf; +import org.apache.hadoop.security.SaslRpcServer; +import org.apache.hive.service.auth.LdapAuthenticationProviderImpl; +import org.jetbrains.annotations.NotNull; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import javax.security.auth.callback.Callback; +import javax.security.auth.callback.CallbackHandler; +import javax.security.auth.callback.UnsupportedCallbackException; +import javax.security.sasl.AuthenticationException; +import javax.security.sasl.AuthorizeCallback; +import java.io.IOException; + +/** + * Callback handler that enforces LDAP filters on Kerberos-authenticated users. + * This handler applies the same LDAP filter resolution used for LDAP authentication + * to Kerberos users, ensuring consistent authorization policies. + */ +public class LdapGroupCallbackHandler implements CallbackHandler { + private static final Logger LOG = LoggerFactory.getLogger(LdapGroupCallbackHandler.class); + + private final HiveConf conf; + private final boolean enableLdapGroupCheck; + private final CallbackHandler delegateHandler; + private final DirSearchFactory dirSearchFactory; + private final Filter filter; + + private final KerberosLdapFilterEnforcer filterEnforcer = KerberosLdapFilterEnforcer.INSTANCE; + + public LdapGroupCallbackHandler(HiveConf conf) { + this(conf, new LdapSearchFactory(), new SaslRpcServer.SaslGssCallbackHandler()); + } + + @VisibleForTesting + LdapGroupCallbackHandler(HiveConf conf, DirSearchFactory dirSearchFactory, CallbackHandler delegateHandler) { + this.conf = conf; + this.delegateHandler = delegateHandler; + this.dirSearchFactory = dirSearchFactory; + this.enableLdapGroupCheck = conf.getBoolVar(HiveConf.ConfVars.HIVE_SERVER2_LDAP_ENABLE_GROUP_CHECK_AFTER_KERBEROS); + this.filter = enableLdapGroupCheck ? LdapAuthenticationProviderImpl.resolveFilter(conf) : null; + + if (enableLdapGroupCheck && filter == null) { + LOG.warn("LDAP group check enabled but no filters configured"); + } + } + + @VisibleForTesting + public static LdapGroupCallbackHandler createForTesting(HiveConf conf, DirSearchFactory dirSearchFactory, + CallbackHandler delegateHandler) { + return new LdapGroupCallbackHandler(conf, dirSearchFactory, delegateHandler); + } + + @Override + public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException { + delegateHandler.handle(callbacks); + + for (Callback callback : callbacks) { + if (!(callback instanceof AuthorizeCallback)) { + continue; + } + + AuthorizeCallback ac = (AuthorizeCallback) callback; Review Comment: should we check the filter only when `ac.isAuthorized()`? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: gitbox-unsubscr...@hive.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: gitbox-unsubscr...@hive.apache.org For additional commands, e-mail: gitbox-h...@hive.apache.org
