1 /*

     2  * Copyright (c) 2000, 2006, 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 

    26 package com.sun.security.sasl.gsskerb;

    27 

    28 import javax.security.sasl.*;

    29 import com.sun.security.sasl.util.PolicyUtils;

    30 

    31 import java.util.Map;

    32 import javax.security.auth.callback.CallbackHandler;

    33 

    34 /**

    35   * Client/server factory for GSSAPI (Kerberos V5) SASL client/server mechs.

    36   * See GssKrb5Client/GssKrb5Server for input requirements.

    37   *

    38   * @author Rosanna Lee

    39   */

    40 public final class FactoryImpl implements SaslClientFactory, SaslServerFactory {

    41     private static final String myMechs[] = {

    42         "GSSAPI"};

    43 

    44     private static final int mechPolicies[] = {

    45         PolicyUtils.NOPLAINTEXT|PolicyUtils.NOANONYMOUS|PolicyUtils.NOACTIVE

    46     };

    47 

    48     private static final int GSS_KERB_V5 = 0;

    49 

    50     public FactoryImpl() {

    51     }

    52 

    53     public SaslClient createSaslClient(String[] mechs,

    54         String authorizationId,

    55         String protocol,

    56         String serverName,

    57         Map<String,?> props,

    58         CallbackHandler cbh) throws SaslException {

    59 

    60             for (int i = 0; i < mechs.length; i++) {

    61                 if (mechs[i].equals(myMechs[GSS_KERB_V5])

    62                     && PolicyUtils.checkPolicy(mechPolicies[GSS_KERB_V5], props)) {

    63                     return new GssKrb5Client(

    64                         authorizationId,

    65                         protocol,

    66                         serverName,

    67                         props,

    68                         cbh);

    69                 }

    70             }

    71             return null;

    72     };

    73 

    74     public SaslServer createSaslServer(String mech,

    75         String protocol,

    76         String serverName,

    77         Map<String,?> props,

    78         CallbackHandler cbh) throws SaslException {

    79             if (mech.equals(myMechs[GSS_KERB_V5])

    80                 && PolicyUtils.checkPolicy(mechPolicies[GSS_KERB_V5], props)) {

    81                 if (cbh == null) {

    82                     throw new SaslException(

    83                 "Callback handler with support for AuthorizeCallback required");

    84                 }

    85                 return new GssKrb5Server(

    86                     protocol,

    87                     serverName,

    88                     props,

    89                     cbh);

    90             }

    91             return null;

    92     };

    93 

    94     public String[] getMechanismNames(Map<String,?> props) {

    95         return PolicyUtils.filterMechs(myMechs, mechPolicies, props);

    96     }

    97 }