| /* ConsoleCallbackHandler.java -- |
| Copyright (C) 2005, 2006 Free Software Foundation, Inc. |
| |
| This file is a part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or (at |
| your option) any later version. |
| |
| GNU Classpath is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; if not, write to the Free Software |
| Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 |
| USA |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package gnu.javax.security.auth.callback; |
| |
| import java.io.BufferedReader; |
| import java.io.InputStreamReader; |
| import java.io.IOException; |
| import java.io.PrintStream; |
| |
| import java.util.Iterator; |
| import java.util.Locale; |
| import java.util.StringTokenizer; |
| import java.util.TreeSet; |
| |
| import javax.security.auth.callback.ChoiceCallback; |
| import javax.security.auth.callback.ConfirmationCallback; |
| import javax.security.auth.callback.LanguageCallback; |
| import javax.security.auth.callback.NameCallback; |
| import javax.security.auth.callback.PasswordCallback; |
| import javax.security.auth.callback.TextInputCallback; |
| import javax.security.auth.callback.TextOutputCallback; |
| |
| /** |
| * An implementation of {@link CallbackHandler} that reads and writes |
| * information to and from <code>System.in</code> and <code>System.out</code>. |
| */ |
| public class ConsoleCallbackHandler extends AbstractCallbackHandler |
| { |
| |
| // Fields. |
| // ------------------------------------------------------------------------- |
| |
| private final PrintStream out; |
| |
| // Constructors. |
| // ------------------------------------------------------------------------- |
| |
| public ConsoleCallbackHandler() |
| { |
| this (System.out); |
| } |
| |
| public ConsoleCallbackHandler (final PrintStream out) |
| { |
| super ("CONSOLE"); |
| this.out = out; |
| } |
| |
| // Instance methods. |
| // ------------------------------------------------------------------------- |
| |
| protected void handleChoice(ChoiceCallback c) throws IOException |
| { |
| BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); |
| out.println(c.getPrompt()); |
| out.print('('); |
| String[] choices = c.getChoices(); |
| for (int i = 0; i < choices.length; i++) |
| { |
| out.print(choices[i]); |
| if (i != choices.length - 1) |
| out.print(", "); |
| } |
| out.print(") "); |
| if (c.getDefaultChoice() >= 0 && c.getDefaultChoice() < choices.length) |
| { |
| out.print('['); |
| out.print(choices[c.getDefaultChoice()]); |
| out.print("] "); |
| } |
| String reply = in.readLine(); |
| if (reply == null || reply.length() == 0) |
| { |
| c.setSelectedIndex(c.getDefaultChoice()); |
| return; |
| } |
| if (!c.allowMultipleSelections()) |
| { |
| for (int i = 0; i < choices.length; i++) |
| { |
| if (reply.trim().equals(choices[i])) |
| { |
| c.setSelectedIndex(i); |
| return; |
| } |
| } |
| c.setSelectedIndex(c.getDefaultChoice()); |
| } |
| else |
| { |
| TreeSet indices = new TreeSet(); |
| StringTokenizer tok = new StringTokenizer(reply, ","); |
| String[] replies = new String[tok.countTokens()]; |
| int idx = 0; |
| while (tok.hasMoreTokens()) |
| { |
| replies[idx++] = tok.nextToken().trim(); |
| } |
| for (int i = 0; i < choices.length; i++) |
| for (int j = 0; j < replies.length; i++) |
| { |
| if (choices[i].equals(replies[j])) |
| { |
| indices.add(Integer.valueOf(i)); |
| } |
| } |
| if (indices.size() == 0) |
| c.setSelectedIndex(c.getDefaultChoice()); |
| else |
| { |
| int[] ii = new int[indices.size()]; |
| int i = 0; |
| for (Iterator it = indices.iterator(); it.hasNext(); ) |
| ii[i++] = ((Integer) it.next()).intValue(); |
| c.setSelectedIndexes(ii); |
| } |
| } |
| } |
| |
| protected void handleConfirmation(ConfirmationCallback c) throws IOException |
| { |
| BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); |
| if (c.getPrompt() != null) |
| out.print(c.getPrompt()); |
| |
| String[] choices = null; |
| int[] values = null; |
| switch (c.getOptionType()) |
| { |
| case ConfirmationCallback.OK_CANCEL_OPTION: |
| out.print(messages.getString("callback.okCancel")); |
| choices = new String[] { |
| messages.getString("callback.ok"), |
| messages.getString("callback.cancel"), |
| messages.getString("callback.shortOk"), |
| messages.getString("callback.shortCancel") |
| }; |
| values = new int[] { |
| ConfirmationCallback.OK, ConfirmationCallback.CANCEL, |
| ConfirmationCallback.OK, ConfirmationCallback.CANCEL |
| }; |
| break; |
| |
| case ConfirmationCallback.YES_NO_CANCEL_OPTION: |
| out.print(messages.getString("callback.yesNoCancel")); |
| choices = new String[] { |
| messages.getString("callback.yes"), |
| messages.getString("callback.no"), |
| messages.getString("callback.cancel"), |
| messages.getString("callback.shortYes"), |
| messages.getString("callback.shortNo"), |
| messages.getString("callback.shortCancel") |
| }; |
| values = new int[] { |
| ConfirmationCallback.YES, ConfirmationCallback.NO, |
| ConfirmationCallback.CANCEL, ConfirmationCallback.YES, |
| ConfirmationCallback.NO, ConfirmationCallback.CANCEL |
| }; |
| break; |
| |
| case ConfirmationCallback.YES_NO_OPTION: |
| out.print(messages.getString("callback.yesNo")); |
| choices = new String[] { messages.getString("callback.yes"), |
| messages.getString("callback.no"), |
| messages.getString("callback.shortYes"), |
| messages.getString("callback.shortNo") }; |
| values = new int[] { ConfirmationCallback.YES, |
| ConfirmationCallback.NO, |
| ConfirmationCallback.YES, |
| ConfirmationCallback.NO }; |
| int defaultOption = c.getDefaultOption(); |
| if (defaultOption > -1 && defaultOption < choices.length) |
| { |
| out.print("["); |
| out.print(choices[defaultOption]); |
| out.print("] "); |
| } |
| break; |
| |
| case ConfirmationCallback.UNSPECIFIED_OPTION: |
| choices = c.getOptions(); |
| values = new int[choices.length]; |
| for (int i = 0; i < values.length; i++) |
| values[i] = i; |
| out.print('('); |
| for (int i = 0; i < choices.length; i++) |
| { |
| out.print(choices[i]); |
| if (i != choices.length - 1) |
| out.print(", "); |
| } |
| out.print(") ["); |
| out.print(choices[c.getDefaultOption()]); |
| out.print("] "); |
| break; |
| |
| default: |
| throw new IllegalArgumentException(); |
| } |
| String reply = in.readLine(); |
| if (reply == null) |
| { |
| c.setSelectedIndex(c.getDefaultOption()); |
| return; |
| } |
| reply = reply.trim(); |
| for (int i = 0; i < choices.length; i++) |
| if (reply.equalsIgnoreCase(choices[i])) |
| { |
| c.setSelectedIndex(values[i]); |
| return; |
| } |
| c.setSelectedIndex(c.getDefaultOption()); |
| } |
| |
| protected void handleLanguage(LanguageCallback c) throws IOException |
| { |
| BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); |
| out.print(messages.getString("callback.language")); |
| String reply = null; |
| reply = in.readLine(); |
| if (reply == null) |
| { |
| c.setLocale(Locale.getDefault()); |
| } |
| else |
| { |
| c.setLocale(new Locale(reply.trim())); |
| } |
| } |
| |
| protected void handleName(NameCallback c) throws IOException |
| { |
| BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); |
| out.print(c.getPrompt()); |
| String name = in.readLine(); |
| if (name != null) |
| c.setName(name.trim()); |
| } |
| |
| protected void handlePassword(PasswordCallback c) throws IOException |
| { |
| out.print(c.getPrompt()); |
| BufferedReader in = |
| new BufferedReader(new InputStreamReader(System.in)); |
| String pass = in.readLine(); |
| c.setPassword(pass.toCharArray()); |
| } |
| |
| protected void handleTextInput(TextInputCallback c) throws IOException |
| { |
| BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); |
| out.print(c.getPrompt()); |
| String text = in.readLine(); |
| if (text != null) |
| c.setText(text); |
| } |
| |
| protected void handleTextOutput(TextOutputCallback c) |
| { |
| out.print(c.getMessage()); |
| } |
| } |