/*
* 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.hadoop.registry.secure;
import org.apache.hadoop.security.authentication.util.KerberosUtil;
import javax.security.auth.login.AppConfigurationEntry;
import java.io.File;
import java.util.HashMap;
import java.util.Map;
class KerberosConfiguration extends javax.security.auth.login.Configuration {
private String principal;
private String keytab;
private boolean isInitiator;
KerberosConfiguration(String principal, File keytab,
boolean client) {
this.principal = principal;
this.keytab = keytab.getAbsolutePath();
this.isInitiator = client;
}
public static javax.security.auth.login.Configuration createClientConfig(
String principal,
File keytab) {
return new KerberosConfiguration(principal, keytab, true);
}
public static javax.security.auth.login.Configuration createServerConfig(
String principal,
File keytab) {
return new KerberosConfiguration(principal, keytab, false);
}
@Override
public AppConfigurationEntry[] getAppConfigurationEntry(String name) {
Map<String, String> options = new HashMap<String, String>();
options.put("keyTab", keytab);
options.put("principal", principal);
options.put("useKeyTab", "true");
options.put("storeKey", "true");
options.put("doNotPrompt", "true");
options.put("useTicketCache", "true");
options.put("renewTGT", "true");
options.put("refreshKrb5Config", "true");
options.put("isInitiator", Boolean.toString(isInitiator));
String ticketCache = System.getenv("KRB5CCNAME");
if (ticketCache != null) {
options.put("ticketCache", ticketCache);
}
options.put("debug", "true");
return new AppConfigurationEntry[]{
new AppConfigurationEntry(KerberosUtil.getKrb5LoginModuleName(),
AppConfigurationEntry.LoginModuleControlFlag.REQUIRED,
options)
};
}
@Override
public String toString() {
return "KerberosConfiguration with principal " + principal;
}
}