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
26package com.sun.security.auth.callback;
27
28/* JAAS imports */
29import javax.security.auth.callback.Callback;
30import javax.security.auth.callback.CallbackHandler;
31import javax.security.auth.callback.NameCallback;        // javadoc
32import javax.security.auth.callback.PasswordCallback;    // javadoc
33import javax.security.auth.callback.UnsupportedCallbackException;
34
35/* Java imports */
36import java.io.IOException;
37
38import 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
49public class TextCallbackHandler implements CallbackHandler {
50    private final CallbackHandler consoleHandler;
51
52    /**
53     * <p>Creates a callback handler that prompts and reads from the
54     * command line for answers to authentication questions.
55     * This can be used by JAAS applications to instantiate a
56     * CallbackHandler.
57
58     */
59    public TextCallbackHandler() {
60        this.consoleHandler = new ConsoleCallbackHandler();
61    }
62
63    /**
64     * Handles the specified set of callbacks.
65     *
66     * @param callbacks the callbacks to handle
67     * @throws IOException if an input or output error occurs.
68     * @throws UnsupportedCallbackException if the callback is not an
69     * instance of NameCallback or PasswordCallback
70     */
71    public void handle(Callback[] callbacks)
72        throws IOException, UnsupportedCallbackException
73    {
74        // delegate to console handler
75        consoleHandler.handle(callbacks);
76    }
77}
78