/**
* 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.wss4j.common.kerberos;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.security.Key;
import java.security.PrivilegedExceptionAction;
import javax.security.auth.kerberos.KerberosPrincipal;
import org.apache.wss4j.common.ext.WSSecurityException;
import org.apache.wss4j.common.ext.WSSecurityException.ErrorCode;
import org.ietf.jgss.GSSContext;
import org.ietf.jgss.GSSCredential;
import org.ietf.jgss.GSSException;
import org.ietf.jgss.GSSManager;
import org.ietf.jgss.GSSName;
import org.ietf.jgss.Oid;
public class KerberosServiceExceptionAction implements PrivilegedExceptionAction<KerberosServiceContext> {
private static final String javaVersion = System.getProperty("java.version");
private static final boolean isJava5Or6 = javaVersion.startsWith("1.5") || javaVersion.startsWith("1.6");
private static final boolean isOracleJavaVendor = System.getProperty("java.vendor").startsWith("Oracle");
private static final boolean isIBMJavaVendor = System.getProperty("java.vendor").startsWith("IBM");
private static final String SUN_JGSS_INQUIRE_TYPE_CLASS = "com.sun.security.jgss.InquireType";
private static final String SUN_JGSS_EXT_GSSCTX_CLASS = "com.sun.security.jgss.ExtendedGSSContext";
private static final String IBM_JGSS_INQUIRE_TYPE_CLASS = "com.ibm.security.jgss.InquireType";
private static final String IBM_JGSS_EXT_GSSCTX_CLASS = "com.ibm.security.jgss.ExtendedGSSContext";
private static final String EXTENDED_JGSS_CONTEXT_INQUIRE_SEC_CONTEXT_METHOD_NAME = "inquireSecContext";
private static final String EXTENDED_JGSS_CONTEXT_INQUIRE_TYPE_KRB5_GET_SESSION_KEY = "KRB5_GET_SESSION_KEY";
private static final String JGSS_KERBEROS_TICKET_OID = "1.2.840.113554.1.2.2";
private static final String KERBEROS_TICKET_VALIDATION_ERROR_MSG_ID = "kerberosTicketValidationError";
private byte[] ticket;
private String serviceName;
private boolean isUsernameServiceNameForm;
public KerberosServiceExceptionAction(byte[] ticket, String serviceName, boolean isUsernameServiceNameForm) {
this.ticket = ticket;
this.serviceName = serviceName;
this.isUsernameServiceNameForm = isUsernameServiceNameForm;
}
/* (non-Javadoc)
* @see java.security.PrivilegedExceptionAction#run()
*/
public KerberosServiceContext run() throws GSSException, WSSecurityException{
GSSManager gssManager = GSSManager.getInstance();
Oid kerberos5Oid = new Oid(JGSS_KERBEROS_TICKET_OID);
GSSName gssService = gssManager.createName(serviceName, isUsernameServiceNameForm ? GSSName.NT_USER_NAME : GSSName.NT_HOSTBASED_SERVICE);
GSSCredential credentials =
gssManager.createCredential(
gssService, GSSCredential.DEFAULT_LIFETIME, kerberos5Oid, GSSCredential.ACCEPT_ONLY
);
KerberosServiceContext krbServiceCtx = null;
GSSContext secContext = null;
try{
secContext = gssManager.createContext(credentials);
secContext.acceptSecContext(ticket, 0, ticket.length);
krbServiceCtx = new KerberosServiceContext();
GSSName clientName = secContext.getSrcName();
krbServiceCtx.setPrincipal(new KerberosPrincipal(clientName.toString()));
if (!isJava5Or6 && (isOracleJavaVendor || isIBMJavaVendor)) {
try {
@SuppressWarnings("rawtypes")
Class inquireType = Class.forName(isOracleJavaVendor ? SUN_JGSS_INQUIRE_TYPE_CLASS : IBM_JGSS_INQUIRE_TYPE_CLASS);
@SuppressWarnings("rawtypes")
Class extendedGSSContext = Class.forName(isOracleJavaVendor ? SUN_JGSS_EXT_GSSCTX_CLASS : IBM_JGSS_EXT_GSSCTX_CLASS);
@SuppressWarnings("unchecked")
Method inquireSecContext = extendedGSSContext.getMethod(EXTENDED_JGSS_CONTEXT_INQUIRE_SEC_CONTEXT_METHOD_NAME, inquireType);
@SuppressWarnings("unchecked")
Key key = (Key) inquireSecContext.invoke(secContext, Enum.valueOf(inquireType, EXTENDED_JGSS_CONTEXT_INQUIRE_TYPE_KRB5_GET_SESSION_KEY));
krbServiceCtx.setSessionKey(key);
}
catch (ClassNotFoundException e) {
throw new WSSecurityException(
ErrorCode.FAILURE, KERBEROS_TICKET_VALIDATION_ERROR_MSG_ID, new Object[] {}, e
);
}
catch (NoSuchMethodException e) {
throw new WSSecurityException(
ErrorCode.FAILURE, KERBEROS_TICKET_VALIDATION_ERROR_MSG_ID, new Object[] {}, e
);
}
catch (InvocationTargetException e) {
throw new WSSecurityException(
ErrorCode.FAILURE, KERBEROS_TICKET_VALIDATION_ERROR_MSG_ID, new Object[] {}, e.getCause()
);
}
catch (IllegalAccessException e) {
throw new WSSecurityException(
ErrorCode.FAILURE, KERBEROS_TICKET_VALIDATION_ERROR_MSG_ID, new Object[] {}, e
);
}
}
} finally {
if (null != secContext) {
secContext.dispose();
}
}
return krbServiceCtx;
}
}