authenticationdialog.java

这是linux下ssl vpn的实现程序

/*
 *  SSL-Explorer
 *
 *  Copyright (C) 2003-2006 3SP LTD. All Rights Reserved
 *
 *  This program 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.
 *  This program 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 this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
			
package com.sslexplorer.vpn.client;

import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.Label;
import java.awt.Panel;
import java.awt.TextField;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import com.maverick.http.BasicAuthentication;
import com.maverick.http.HttpAuthenticator;
import com.maverick.http.NTLMAuthentication;
import com.maverick.http.PasswordCredentials;
import com.sshtools.ui.awt.UIUtil;
import com.sshtools.ui.awt.options.OptionDialog;

public class AuthenticationDialog {

    public static boolean promptForCredentials(HttpAuthenticator authenticator) {
        Panel p = new Panel(new GridBagLayout());
        GridBagConstraints gbc = new GridBagConstraints();
        gbc.anchor = GridBagConstraints.WEST;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        gbc.insets = new Insets(2, 2, 2, 2);

        // Realm
        if(authenticator instanceof BasicAuthentication) {
            gbc.weightx = 0.0;
            UIUtil.gridBagAdd(p, new Label("Realm:"), gbc, GridBagConstraints.RELATIVE);
            gbc.weightx = 1.0;
            UIUtil.gridBagAdd(p, new Label(((BasicAuthentication)authenticator).getRealm()), gbc, GridBagConstraints.REMAINDER);
        }

        // Realm
        TextField domain = null;
        if(authenticator instanceof NTLMAuthentication) {
            gbc.weightx = 0.0;
            UIUtil.gridBagAdd(p, new Label("Domain:"), gbc, GridBagConstraints.RELATIVE);
            domain = new TextField("", 15);
            gbc.weightx = 1.0;
            UIUtil.gridBagAdd(p, domain, gbc, GridBagConstraints.REMAINDER);
        }

        // Username
        gbc.weightx = 0.0;
        UIUtil.gridBagAdd(p, new Label("Username:"), gbc, GridBagConstraints.RELATIVE);
        final TextField username = new TextField("", 15);
        gbc.weightx = 1.0;
        UIUtil.gridBagAdd(p, username, gbc, GridBagConstraints.REMAINDER);
        username.requestFocus();

        // Password
        gbc.weightx = 0.0;
        UIUtil.gridBagAdd(p, new Label("Password:"), gbc, GridBagConstraints.RELATIVE);
        final TextField password = new TextField("", 15);
        gbc.weightx = 1.0;
        UIUtil.gridBagAdd(p, password, gbc, GridBagConstraints.REMAINDER);
        password.requestFocus();
        password.setEchoChar('*');

        final OptionDialog dialog = new OptionDialog(OptionDialog.QUESTION, p,
                        OptionDialog.CHOICES_OK_CANCEL, null);
        username.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent evt) {
                dialog.choice(OptionDialog.CHOICE_OK);
            }
        });
        password.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent evt) {
                dialog.choice(OptionDialog.CHOICE_OK);
            }
        });
        if(domain != null) {
            domain.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent evt) {
                    dialog.choice(OptionDialog.CHOICE_OK);
                }
            });
        }

        if (dialog.dialogPrompt(null, "Proxy Server Authentication") == OptionDialog.CHOICE_OK) {
            authenticator.setCredentials(new PasswordCredentials(username.getText().trim(), password.getText()));
            if(authenticator instanceof NTLMAuthentication &&
                            !domain.getText().trim().equals("")) {
                ((NTLMAuthentication)authenticator).setDomain(domain.getText().trim());
            }
            return true;
        }

        return false;
}

}