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 

    26 package com.sun.security.auth.callback;

    27 

    28 /* JAAS imports */

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

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

    31 import javax.security.auth.callback.NameCallback;        // javadoc

    32 import javax.security.auth.callback.PasswordCallback;    // javadoc

    33 import javax.security.auth.callback.UnsupportedCallbackException;

    34 

    35 /* Java imports */

    36 import java.io.IOException;

    37 

    38 import sun.security.util.ConsoleCallbackHandler;

    39 

    40 /**

    41  * <p>

    42  * Prompts and reads from the command line for answers to authentication

    43  * questions.

    44  * This can be used by a JAAS application to instantiate a

    45  * CallbackHandler

    46  * @see javax.security.auth.callback

    47  */

    48 

    49 @jdk.Exported

    50 public class TextCallbackHandler implements CallbackHandler {

    51     private final CallbackHandler consoleHandler;

    52 

    53     /**

    54      * <p>Creates a callback handler that prompts and reads from the

    55      * command line for answers to authentication questions.

    56      * This can be used by JAAS applications to instantiate a

    57      * CallbackHandler.

    58 

    59      */

    60     public TextCallbackHandler() {

    61         this.consoleHandler = new ConsoleCallbackHandler();

    62     }

    63 

    64     /**

    65      * Handles the specified set of callbacks.

    66      *

    67      * @param callbacks the callbacks to handle

    68      * @throws IOException if an input or output error occurs.

    69      * @throws UnsupportedCallbackException if the callback is not an

    70      * instance of NameCallback or PasswordCallback

    71      */

    72     public void handle(Callback[] callbacks)

    73         throws IOException, UnsupportedCallbackException

    74     {

    75         // delegate to console handler

    76         consoleHandler.handle(callbacks);

    77     }

    78 }