JdkSASL.java revision 13122:165608bfa113 
1/*
2 * Copyright (c) 2015, 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.
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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24 */
25package com.sun.security.sasl.gsskerb;
26
27import java.security.AccessController;
28import java.security.PrivilegedAction;
29import java.security.Provider;
30import java.security.NoSuchAlgorithmException;
31import java.security.InvalidParameterException;
32import java.security.ProviderException;
33
34/**
35 * The JdkSASL provider class -
36 * provides client and server support for GSSAPI/Kerberos v5
37 */
38
39public final class JdkSASL extends Provider {
40
41    private static final long serialVersionUID = 8622590901641830849L;
42
43    private static final String info = "JDK SASL provider" +
44        "(implements client and server mechanisms for GSSAPI)";
45
46    private static final class ProviderService extends Provider.Service {
47
48        ProviderService(Provider p, String type, String algo, String cn) {
49            super(p, type, algo, cn, null, null);
50        }
51
52        @Override
53        public Object newInstance(Object ctrParamObj)
54            throws NoSuchAlgorithmException {
55            String type = getType();
56            if (ctrParamObj != null) {
57                throw new InvalidParameterException
58                    ("constructorParameter not used with " + type + " engines");
59            }
60            String algo = getAlgorithm();
61            // GSSAPI uses same impl class for client and server
62            try {
63                if (algo.equals("GSSAPI")) {
64                    return new com.sun.security.sasl.gsskerb.FactoryImpl();
65                }
66            } catch (Exception ex) {
67                throw new NoSuchAlgorithmException("Error constructing " +
68                     type + " for " + algo + " using JdkSASL", ex);
69            }
70            throw new ProviderException("No impl for " + algo +
71                " " + type);
72        }
73    }
74
75    public JdkSASL() {
76        super("JdkSASL", 9.0d, info);
77
78        final Provider p = this;
79        AccessController.doPrivileged(new PrivilegedAction<Void>() {
80            public Void run() {
81                putService(new ProviderService(p, "SaslClientFactory",
82                           "GSSAPI", "com.sun.security.sasl.gsskerb.FactoryImpl"));
83                putService(new ProviderService(p, "SaslServerFactory",
84                           "GSSAPI", "com.sun.security.sasl.gsskerb.FactoryImpl"));
85                return null;
86            }
87        });
88    }
89}
90