1/*
2 * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package com.sun.security.jgss;
27
28import javax.security.auth.Subject;
29import org.ietf.jgss.GSSName;
30import org.ietf.jgss.GSSCredential;
31
32/**
33 * GSS-API Utilities for using in conjunction with Sun Microsystem's
34 * implementation of Java GSS-API.
35 */
36public class GSSUtil {
37
38    /**
39     * Use this method to convert a GSSName and GSSCredential into a
40     * Subject. Typically this would be done by a server that wants to
41     * impersonate a client thread at the Java level by setting a client
42     * Subject in the current access control context. If the server is merely
43     * interested in using a principal based policy in its local JVM, then
44     * it only needs to provide the GSSName of the client.
45     *
46     * The elements from the GSSName are placed in the principals set of this
47     * Subject and those from the GSSCredential are placed in the private
48     * credentials set of the Subject. Any Kerberos specific elements that
49     * are added to the subject will be instances of the standard Kerberos
50     * implementation classes defined in javax.security.auth.kerberos.
51     *
52     * @return a Subject with the entries that contain elements from the
53     * given GSSName and GSSCredential.
54     *
55     * @param principals a GSSName containing one or more mechanism specific
56     * representations of the same entity. These mechanism specific
57     * representations will be populated in the returned Subject's principal
58     * set.
59     *
60     * @param credentials a GSSCredential containing one or more mechanism
61     * specific credentials for the same entity. These mechanism specific
62     * credentials will be populated in the returned Subject's private
63     * credential set. Passing in a value of null will imply that the private
64     * credential set should be left empty.
65     */
66    public static Subject createSubject(GSSName principals,
67                                     GSSCredential credentials) {
68
69        return  sun.security.jgss.GSSUtil.getSubject(principals,
70                                                     credentials);
71    }
72}
73