- /*
- * @(#)DialogCallbackHandler.java 1.9 03/12/19
- *
- * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
- * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
- */
-
- package com.sun.security.auth.callback;
-
- /* JAAS imports */
- import javax.security.auth.callback.Callback;
- import javax.security.auth.callback.CallbackHandler;
- import javax.security.auth.callback.ConfirmationCallback;
- import javax.security.auth.callback.NameCallback;
- import javax.security.auth.callback.PasswordCallback;
- import javax.security.auth.callback.TextOutputCallback;
- import javax.security.auth.callback.UnsupportedCallbackException;
-
- /* Java imports */
- import java.awt.Component;
- import java.util.ArrayList;
- import java.util.Iterator;
- import java.util.List;
- import javax.swing.Box;
- import javax.swing.JLabel;
- import javax.swing.JOptionPane;
- import javax.swing.JPasswordField;
- import javax.swing.JTextField;
-
- /**
- * <p>
- * Uses a Swing dialog window to query the user for answers to
- * authentication questions.
- * This can be used by a JAAS application to instantiate a
- * CallbackHandler
- * @see javax.security.auth.callback
- */
- public class DialogCallbackHandler implements CallbackHandler {
-
- /* -- Fields -- */
-
- /* The parent window, or null if using the default parent */
- private Component parentComponent;
- private static final int JPasswordFieldLen = 8 ;
-
- /* -- Methods -- */
-
- /**
- * Creates a callback dialog with the default parent window.
- */
- public DialogCallbackHandler() { }
-
- /**
- * Creates a callback dialog and specify the parent window.
- *
- * @param parentComponent the parent window -- specify <code>null</code>
- * for the default parent
- */
- public DialogCallbackHandler(Component parentComponent) {
- this.parentComponent = parentComponent;
- }
-
- /*
- * An interface for recording actions to carry out if the user
- * clicks OK for the dialog.
- */
- private static interface Action {
- void perform();
- }
-
- /**
- * Handles the specified set of callbacks.
- *
- * @param callbacks the callbacks to handle
- * @throws UnsupportedCallbackException if the callback is not an
- * instance of NameCallback or PasswordCallback
- */
-
- public void handle(Callback[] callbacks)
- throws UnsupportedCallbackException
- {
- /* Collect messages to display in the dialog */
- final List messages = new ArrayList(3);
-
- /* Collection actions to perform if the user clicks OK */
- final List okActions = new ArrayList(2);
-
- ConfirmationInfo confirmation = new ConfirmationInfo();
-
- for (int i = 0; i < callbacks.length; i++) {
- if (callbacks[i] instanceof TextOutputCallback) {
- TextOutputCallback tc = (TextOutputCallback) callbacks[i];
-
- switch (tc.getMessageType()) {
- case TextOutputCallback.INFORMATION:
- confirmation.messageType = JOptionPane.INFORMATION_MESSAGE;
- break;
- case TextOutputCallback.WARNING:
- confirmation.messageType = JOptionPane.WARNING_MESSAGE;
- break;
- case TextOutputCallback.ERROR:
- confirmation.messageType = JOptionPane.ERROR_MESSAGE;
- break;
- default:
- throw new UnsupportedCallbackException(
- callbacks[i], "Unrecognized message type");
- }
-
- messages.add(tc.getMessage());
-
- } else if (callbacks[i] instanceof NameCallback) {
- final NameCallback nc = (NameCallback) callbacks[i];
-
- JLabel prompt = new JLabel(nc.getPrompt());
-
- final JTextField name = new JTextField();
- String defaultName = nc.getDefaultName();
- if (defaultName != null) {
- name.setText(defaultName);
- }
-
- /*
- * Put the prompt and name in a horizontal box,
- * and add that to the set of messages.
- */
- Box namePanel = Box.createHorizontalBox();
- namePanel.add(prompt);
- namePanel.add(name);
- messages.add(namePanel);
-
- /* Store the name back into the callback if OK */
- okActions.add(new Action() {
- public void perform() {
- nc.setName(name.getText());
- }
- });
-
- } else if (callbacks[i] instanceof PasswordCallback) {
- final PasswordCallback pc = (PasswordCallback) callbacks[i];
-
- JLabel prompt = new JLabel(pc.getPrompt());
-
- final JPasswordField password =
- new JPasswordField(JPasswordFieldLen);
- if (!pc.isEchoOn()) {
- password.setEchoChar('*');
- }
-
- Box passwordPanel = Box.createHorizontalBox();
- passwordPanel.add(prompt);
- passwordPanel.add(password);
- messages.add(passwordPanel);
-
- okActions.add(new Action() {
- public void perform() {
- pc.setPassword(password.getPassword());
- }
- });
-
- } else if (callbacks[i] instanceof ConfirmationCallback) {
- ConfirmationCallback cc = (ConfirmationCallback)callbacks[i];
-
- confirmation.setCallback(cc);
- if (cc.getPrompt() != null) {
- messages.add(cc.getPrompt());
- }
-
- } else {
- throw new UnsupportedCallbackException(
- callbacks[i], "Unrecognized Callback");
- }
- }
-
- /* Display the dialog */
- int result = JOptionPane.showOptionDialog(
- parentComponent,
- messages.toArray(),
- "Confirmation", /* title */
- confirmation.optionType,
- confirmation.messageType,
- null, /* icon */
- confirmation.options, /* options */
- confirmation.initialValue); /* initialValue */
-
- /* Perform the OK actions */
- if (result == JOptionPane.OK_OPTION
- || result == JOptionPane.YES_OPTION)
- {
- Iterator iterator = okActions.iterator();
- while (iterator.hasNext()) {
- ((Action) iterator.next()).perform();
- }
- }
- confirmation.handleResult(result);
- }
-
- /*
- * Provides assistance with translating between JAAS and Swing
- * confirmation dialogs.
- */
- private static class ConfirmationInfo {
-
- private int[] translations;
-
- int optionType = JOptionPane.OK_CANCEL_OPTION;
- Object[] options = null;
- Object initialValue = null;
-
- int messageType = JOptionPane.QUESTION_MESSAGE;
-
- private ConfirmationCallback callback;
-
- /* Set the confirmation callback handler */
- void setCallback(ConfirmationCallback callback)
- throws UnsupportedCallbackException
- {
- this.callback = callback;
-
- int confirmationOptionType = callback.getOptionType();
- switch (confirmationOptionType) {
- case ConfirmationCallback.YES_NO_OPTION:
- optionType = JOptionPane.YES_NO_OPTION;
- translations = new int[] {
- JOptionPane.YES_OPTION, ConfirmationCallback.YES,
- JOptionPane.NO_OPTION, ConfirmationCallback.NO,
- JOptionPane.CLOSED_OPTION, ConfirmationCallback.NO
- };
- break;
- case ConfirmationCallback.YES_NO_CANCEL_OPTION:
- optionType = JOptionPane.YES_NO_CANCEL_OPTION;
- translations = new int[] {
- JOptionPane.YES_OPTION, ConfirmationCallback.YES,
- JOptionPane.NO_OPTION, ConfirmationCallback.NO,
- JOptionPane.CANCEL_OPTION, ConfirmationCallback.CANCEL,
- JOptionPane.CLOSED_OPTION, ConfirmationCallback.CANCEL
- };
- break;
- case ConfirmationCallback.OK_CANCEL_OPTION:
- optionType = JOptionPane.OK_CANCEL_OPTION;
- translations = new int[] {
- JOptionPane.OK_OPTION, ConfirmationCallback.OK,
- JOptionPane.CANCEL_OPTION, ConfirmationCallback.CANCEL,
- JOptionPane.CLOSED_OPTION, ConfirmationCallback.CANCEL
- };
- break;
- case ConfirmationCallback.UNSPECIFIED_OPTION:
- options = callback.getOptions();
- /*
- * There's no way to know if the default option means
- * to cancel the login, but there isn't a better way
- * to guess this.
- */
- translations = new int[] {
- JOptionPane.CLOSED_OPTION, callback.getDefaultOption()
- };
- break;
- default:
- throw new UnsupportedCallbackException(
- callback,
- "Unrecognized option type: " + confirmationOptionType);
- }
-
- int confirmationMessageType = callback.getMessageType();
- switch (confirmationMessageType) {
- case ConfirmationCallback.WARNING:
- messageType = JOptionPane.WARNING_MESSAGE;
- break;
- case ConfirmationCallback.ERROR:
- messageType = JOptionPane.ERROR_MESSAGE;
- break;
- case ConfirmationCallback.INFORMATION:
- messageType = JOptionPane.INFORMATION_MESSAGE;
- break;
- default:
- throw new UnsupportedCallbackException(
- callback,
- "Unrecognized message type: " + confirmationMessageType);
- }
- }
-
-
- /* Process the result returned by the Swing dialog */
- void handleResult(int result) {
- if (callback == null) {
- return;
- }
-
- for (int i = 0; i < translations.length; i += 2) {
- if (translations[i] == result) {
- result = translations[i + 1];
- break;
- }
- }
- callback.setSelectedIndex(result);
- }
- }
- }