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