Java example source code file (GSSUtil.java)

This example Java source code file (GSSUtil.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

gsscredential, gssutil, subject

The GSSUtil.java Java example source code

/*
 * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package com.sun.security.jgss;

import javax.security.auth.Subject;
import org.ietf.jgss.GSSName;
import org.ietf.jgss.GSSCredential;

/**
 * GSS-API Utilities for using in conjunction with Sun Microsystem's
 * implementation of Java GSS-API.
 */
@jdk.Exported
public class GSSUtil {

    /**
     * Use this method to convert a GSSName and GSSCredential into a
     * Subject. Typically this would be done by a server that wants to
     * impersonate a client thread at the Java level by setting a client
     * Subject in the current access control context. If the server is merely
     * interested in using a principal based policy in its local JVM, then
     * it only needs to provide the GSSName of the client.
     *
     * The elements from the GSSName are placed in the principals set of this
     * Subject and those from the GSSCredential are placed in the private
     * credentials set of the Subject. Any Kerberos specific elements that
     * are added to the subject will be instances of the standard Kerberos
     * implementation classes defined in javax.security.auth.kerberos.
     *
     * @return a Subject with the entries that contain elements from the
     * given GSSName and GSSCredential.
     *
     * @param principals a GSSName containing one or more mechanism specific
     * representations of the same entity. These mechanism specific
     * representations will be populated in the returned Subject's principal
     * set.
     *
     * @param credentials a GSSCredential containing one or more mechanism
     * specific credentials for the same entity. These mechanism specific
     * credentials will be populated in the returned Subject's private
     * credential set. Passing in a value of null will imply that the private
     * credential set should be left empty.
     */
    public static Subject createSubject(GSSName principals,
                                     GSSCredential credentials) {

        return  sun.security.jgss.GSSUtil.getSubject(principals,
                                                     credentials);
    }
}