/**
* 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 java.util.Hashtable;
import javax.naming.Context;
import javax.naming.NamingException;
import javax.naming.directory.DirContext;
import javax.naming.directory.InitialDirContext;
import javax.security.sasl.AuthenticationException;
import org.apache.hadoop.hive.conf.HiveConf;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* A factory for LDAP search objects.
*/
public final class LdapSearchFactory implements DirSearchFactory {
private static final Logger LOG = LoggerFactory.getLogger(LdapSearchFactory.class);
/**
* {@inheritDoc}
*/
@Override
public DirSearch getInstance(HiveConf conf, String principal, String password)
throws AuthenticationException {
try {
DirContext ctx = createDirContext(conf, principal, password);
return new LdapSearch(conf, ctx);
} catch (NamingException e) {
LOG.debug("Could not connect to the LDAP Server:Authentication failed for {}", principal);
throw new AuthenticationException("Error validating LDAP user", e);
}
}
private static DirContext createDirContext(HiveConf conf, String principal, String password)
throws NamingException {
Hashtable<String, Object> env = new Hashtable<String, Object>();
String ldapUrl = conf.getVar(HiveConf.ConfVars.HIVE_SERVER2_PLAIN_LDAP_URL);
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
env.put(Context.PROVIDER_URL, ldapUrl);
env.put(Context.SECURITY_AUTHENTICATION, "simple");
env.put(Context.SECURITY_CREDENTIALS, password);
env.put(Context.SECURITY_PRINCIPAL, principal);
LOG.debug("Connecting using principal {} to ldap url {}", principal, ldapUrl);
return new InitialDirContext(env);
}
}