1 /*

     2  * Copyright 2000-2004 Sun Microsystems, Inc.  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.  Sun designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    22  * CA 95054 USA or visit www.sun.com if you need additional information or

    23  * have any questions.

    24  */

    25 

    26 package javax.security.sasl;

    27 

    28 import javax.security.auth.callback.Callback;

    29 

    30 /**

    31   * This callback is used by <tt>SaslServer</tt> to determine whether

    32   * one entity (identified by an authenticated authentication id)

    33   * can act on

    34   * behalf of another entity (identified by an authorization id).

    35   *

    36   * @since 1.5

    37   *

    38   * @author Rosanna Lee

    39   * @author Rob Weltman

    40   */

    41 public class AuthorizeCallback implements Callback, java.io.Serializable {

    42     /**

    43      * The (authenticated) authentication id to check.

    44      * @serial

    45      */

    46     private String authenticationID;

    47 

    48     /**

    49      * The authorization id to check.

    50      * @serial

    51      */

    52     private String authorizationID;

    53 

    54     /**

    55      * The id of the authorized entity. If null, the id of

    56      * the authorized entity is authorizationID.

    57      * @serial

    58      */

    59     private String authorizedID;

    60 

    61     /**

    62      * A flag indicating whether the authentication id is allowed to

    63      * act on behalf of the authorization id.

    64      * @serial

    65      */

    66     private boolean authorized;

    67 

    68     /**

    69      * Constructs an instance of <tt>AuthorizeCallback</tt>.

    70      *

    71      * @param authnID   The (authenticated) authentication id.

    72      * @param authzID   The authorization id.

    73      */

    74     public AuthorizeCallback(String authnID, String authzID) {

    75         authenticationID = authnID;

    76         authorizationID = authzID;

    77     }

    78 

    79     /**

    80      * Returns the authentication id to check.

    81      * @return The authentication id to check.

    82      */

    83     public String getAuthenticationID() {

    84         return authenticationID;

    85     }

    86 

    87     /**

    88      * Returns the authorization id to check.

    89      * @return The authentication id to check.

    90      */

    91     public String getAuthorizationID() {

    92         return authorizationID;

    93     }

    94 

    95     /**

    96      * Determines whether the authentication id is allowed to

    97      * act on behalf of the authorization id.

    98      *

    99      * @return <tt>true</tt> if authorization is allowed; <tt>false</tt> otherwise

   100      * @see #setAuthorized(boolean)

   101      * @see #getAuthorizedID()

   102      */

   103     public boolean isAuthorized() {

   104         return authorized;

   105     }

   106 

   107     /**

   108      * Sets whether the authorization is allowed.

   109      * @param ok <tt>true</tt> if authorization is allowed; <tt>false</tt> otherwise

   110      * @see #isAuthorized

   111      * @see #setAuthorizedID(java.lang.String)

   112      */

   113     public void setAuthorized(boolean ok) {

   114         authorized = ok;

   115     }

   116 

   117     /**

   118      * Returns the id of the authorized user.

   119      * @return The id of the authorized user. <tt>null</tt> means the

   120      * authorization failed.

   121      * @see #setAuthorized(boolean)

   122      * @see #setAuthorizedID(java.lang.String)

   123      */

   124     public String getAuthorizedID() {

   125         if (!authorized) {

   126             return null;

   127         }

   128         return (authorizedID == null) ? authorizationID : authorizedID;

   129     }

   130 

   131     /**

   132      * Sets the id of the authorized entity. Called by handler only when the id

   133      * is different from getAuthorizationID(). For example, the id

   134      * might need to be canonicalized for the environment in which it

   135      * will be used.

   136      * @param id The id of the authorized user.

   137      * @see #setAuthorized(boolean)

   138      * @see #getAuthorizedID

   139      */

   140     public void setAuthorizedID(String id) {

   141         authorizedID = id;

   142     }

   143 

   144     private static final long serialVersionUID = -2353344186490470805L;

   145 }