Java tutorial
/******************************************************************************* * Copyright (c) 2000, 2007 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * IBM Corporation - initial API and implementation * Atsuhiko Yamanaka, JCraft,Inc. - implementation of promptForKeyboradInteractive * Atsuhiko Yamanaka, JCraft,Inc. - copying this class from o.e.team.cvs.ui plug-in. *******************************************************************************/ package org.eclipse.jsch.internal.ui.authenticator; import org.eclipse.core.runtime.OperationCanceledException; import org.eclipse.jface.dialogs.*; import org.eclipse.osgi.util.NLS; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; import org.eclipse.jsch.core.IJSchLocation; import org.eclipse.jsch.internal.core.IUserAuthenticator; import org.eclipse.jsch.internal.core.IUserInfo; import org.eclipse.jsch.internal.ui.Messages; /** * An authenticator that prompts the user for authentication info, * and stores the results in the Platform's authentication key-ring. * @since 1.1 */ public class WorkbenchUserAuthenticator implements IUserAuthenticator { /** * WorkbenchUserAuthenticator constructor. */ public WorkbenchUserAuthenticator() { super(); } /** * @see IUserAuthenticator#promptForUserInfo(IJSchLocation, IUserInfo, String) */ public void promptForUserInfo(final IJSchLocation location, final IUserInfo userinfo, final String message) { // ask the user for a password final String[] result = new String[2]; Display display = Display.getCurrent(); final boolean allowCaching[] = { false }; if (display != null) { allowCaching[0] = promptForPassword(location, userinfo.getUsername(), message, userinfo.isUsernameMutable(), result); } else { // sync exec in default thread Display.getDefault().syncExec(new Runnable() { public void run() { allowCaching[0] = promptForPassword(location, userinfo.getUsername(), message, userinfo.isUsernameMutable(), result); } }); } if (result[0] == null) { throw new OperationCanceledException(Messages.WorkbenchUserAuthenticator_cancelled); } if (userinfo.isUsernameMutable()) { userinfo.setUsername(result[0]); } userinfo.setPassword(result[1]); if (location != null) { if (userinfo.isUsernameMutable()) { location.setUsername(result[0]); } location.setPassword(result[1]); if (location.getPasswordStore() != null) { if (allowCaching[0]) location.getPasswordStore().update(location); else location.getPasswordStore().clear(location); } } } /** * Asks the user to enter a password. Places the * results in the supplied string[]. result[0] must * contain the username, result[1] must contain the password. * If the user canceled, both values must be zero. * * @param location the location to obtain the password for * @param username the username * @param message a message to display to the user * @param userMutable whether the user can be changed in the dialog * @param result a String array of length two in which to put the result */ protected boolean promptForPassword(final IJSchLocation location, final String username, final String message, final boolean userMutable, final String[] result) { String comment = location == null ? null : location.getComment(); UserValidationDialog dialog = new UserValidationDialog(null, comment, (username == null) ? "" : username, //$NON-NLS-1$ message, (location != null && location.getPasswordStore() != null)); dialog.setUsernameMutable(userMutable); dialog.open(); result[0] = dialog.getUsername(); result[1] = dialog.getPassword(); return dialog.getAllowCaching(); } /** * Asks the user to enter values. * * @param location the location to obtain the password for * @param destination the location * @param name the name * @param instruction the instruction * @param prompt the titles for text fields * @param echo '*' should be used or not * @return the entered values, or null if user canceled. */ public String[] promptForKeyboradInteractive(final IJSchLocation location, final String destination, final String name, final String instruction, final String[] prompt, final boolean[] echo) { final String[][] result = new String[1][]; final boolean[] allowCaching = new boolean[1]; Display display = Display.getCurrent(); if (display != null) { result[0] = _promptForUserInteractive(location, destination, name, instruction, prompt, echo, allowCaching); } else { // sync exec in default thread Display.getDefault().syncExec(new Runnable() { public void run() { result[0] = _promptForUserInteractive(location, destination, name, instruction, prompt, echo, allowCaching); } }); } if (result[0] != null && location != null && prompt != null && prompt.length == 1 && prompt[0].trim().equalsIgnoreCase("password:")) { //$NON-NLS-1$ location.setPassword(result[0][0]); if (location.getPasswordStore() != null) { if (allowCaching[0]) location.getPasswordStore().update(location); else location.getPasswordStore().clear(location); } } return result[0]; } protected String[] _promptForUserInteractive(final IJSchLocation location, final String destination, final String name, final String instruction, final String[] prompt, final boolean[] echo, final boolean[] allowCaching) { String comment = location == null ? null : location.getComment(); String username = location == null ? "" : location.getUsername(); //$NON-NLS-1$ KeyboardInteractiveDialog dialog = new KeyboardInteractiveDialog(null, comment, destination, name, username, instruction, prompt, echo); dialog.setUsernameMutable(false); dialog.open(); String[] _result = dialog.getResult(); if (_result != null) allowCaching[0] = dialog.getAllowCaching(); return _result; } /* (non-Javadoc) * @see org.eclipse.team.internal.ccvs.core.IUserAuthenticator#prompt(org.eclipse.team.internal.ccvs.core.ICVSRepositoryLocation, int, java.lang.String, java.lang.String, int[], int) */ public int prompt(IJSchLocation location, final int promptType, final String title, final String message, final int[] promptResponses, final int defaultResponse) { final Display display = getStandardDisplay(); final int[] retval = new int[1]; final String[] buttons = new String[promptResponses.length]; for (int i = 0; i < promptResponses.length; i++) { int prompt = promptResponses[i]; switch (prompt) { case IUserAuthenticator.OK_ID: buttons[i] = IDialogConstants.OK_LABEL; break; case IUserAuthenticator.CANCEL_ID: buttons[i] = IDialogConstants.CANCEL_LABEL; break; case IUserAuthenticator.NO_ID: buttons[i] = IDialogConstants.NO_LABEL; break; case IUserAuthenticator.YES_ID: buttons[i] = IDialogConstants.YES_LABEL; break; } } display.syncExec(new Runnable() { public void run() { final MessageDialog dialog = new MessageDialog(new Shell(display), title, null, message, promptType, buttons, 1); retval[0] = dialog.open(); } }); return retval[0]; } public boolean promptForHostKeyChange(final IJSchLocation location) { final boolean[] openConfirm = new boolean[] { false }; final Display display = getStandardDisplay(); display.syncExec(new Runnable() { public void run() { openConfirm[0] = MessageDialog.openConfirm(null, Messages.WorkbenchUserAuthenticator_1, NLS.bind(Messages.WorkbenchUserAuthenticator_2, new String[] { location.getHost() })); // } }); if (!openConfirm[0]) { throw new OperationCanceledException(); } return openConfirm[0]; } /** * Returns the standard display to be used. The method first checks, if * the thread calling this method has an associated display. If so, this * display is returned. Otherwise the method returns the default display. * @return standard display */ private Display getStandardDisplay() { Display display = Display.getCurrent(); if (display == null) { display = Display.getDefault(); } return display; } }