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.

    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 package com.sun.security.sasl.gsskerb;

    26 

    27 import java.security.AccessController;

    28 import java.security.PrivilegedAction;

    29 import java.security.Provider;

    30 import java.security.NoSuchAlgorithmException;

    31 import java.security.InvalidParameterException;

    32 import java.security.ProviderException;

    33 

    34 /**

    35  * The JdkSASL provider class -

    36  * provides client and server support for GSSAPI/Kerberos v5

    37  */

    38 

    39 public 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", 1.9d, 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 }