certificateinfopanel.java

一个用java写的mail.里面的代码值得我们去研究！学习。

/*
** $Id: CertificateInfoPanel.java,v 1.4 2001/05/07 12:37:22 kunugi Exp $
**
** Copyright (c) 2000-2001 Jeff Gay
** on behalf of ICEMail.org <http://www.icemail.org>
** Copyright (c) 1998-2000 by Timothy Gerard Endres
** 
** This program is free software.
** 
** You may redistribute it and/or modify it under the terms of the GNU
** General Public License as published by the Free Software Foundation.
** Version 2 of the license should be included with this distribution in
** the file LICENSE, as well as License.html. If the license is not
** included with this distribution, you may find a copy at the FSF web
** site at 'www.gnu.org' or 'www.fsf.org', or you may write to the
** Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139 USA.
**
** THIS SOFTWARE IS PROVIDED AS-IS WITHOUT WARRANTY OF ANY KIND,
** NOT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY. THE AUTHOR
** OF THIS SOFTWARE, ASSUMES _NO_ RESPONSIBILITY FOR ANY
** CONSEQUENCE RESULTING FROM THE USE, MODIFICATION, OR
** REDISTRIBUTION OF THIS SOFTWARE. 
*/

package org.icemail.mail.smime;

import java.awt.Color;
import java.awt.BorderLayout;
import java.awt.GridBagLayout;
import java.awt.GridBagConstraints;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.math.BigInteger;
import java.security.cert.CertificateException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Vector;
import java.util.Enumeration;

import javax.swing.*;
import javax.swing.border.EmptyBorder;
import javax.swing.tree.TreePath;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;

import iaik.asn1.ObjectID;
import iaik.asn1.structures.AVA;
import iaik.asn1.structures.AlgorithmID;
import iaik.asn1.structures.Name;
import iaik.asn1.structures.RDN;
import iaik.pkcs.PKCSException;
import iaik.x509.X509Certificate;

import org.icemail.mail.Configuration;

import org.icemail.smime.MissingCertificateException;
import org.icemail.smime.PasswordCancelException;

import org.icemail.util.AWTUtilities;


public class CertificateInfoPanel
  extends JPanel
  implements ActionListener, TreeSelectionListener
{
  private CertDetailsPanel     detailsPanel;
  private CertImportPanel      importPanel;
  private CertRDNPanel         rdnPanel;
  private CertDescriptionPanel descriptionPanel;
  private JTabbedPane          tabbedPane;

  private X509Certificate      currCert;
  private X509Certificate[]    certChain;


  public
  CertificateInfoPanel( X509Certificate[] chain, boolean showImportPanel ) {
    super();

    this.certChain = chain;

    this.setLayout( new BorderLayout() );

    this.tabbedPane = new JTabbedPane();

    this.detailsPanel = new CertDetailsPanel();

    this.rdnPanel = new CertRDNPanel();

    this.importPanel = showImportPanel ? new CertImportPanel() : null;

    this.descriptionPanel = new CertDescriptionPanel();

    this.tabbedPane.add( "Certificate", this.detailsPanel );
    if ( showImportPanel ) {
      this.tabbedPane.add( "Import", this.importPanel );
    }
    this.tabbedPane.add( "RDN", this.rdnPanel );
    this.tabbedPane.add( "Details", this.descriptionPanel );

    this.add( BorderLayout.CENTER, this.tabbedPane );
  }

  public void
  valueChanged( TreeSelectionEvent evt ) {
    X509Certificate cert = null;

    TreePath selPath = evt.getNewLeadSelectionPath();

    if ( selPath != null ) {
      CertificateNode node = (CertificateNode) selPath.getLastPathComponent();

      if ( node != null ) {
        cert = node.getCertificate();
      }
    }

    this.setCurrentCertificate( cert );
  }

  public void
  actionPerformed( ActionEvent evt ) {
    String command = evt.getActionCommand();
    
    if ( command.equals( "IMPORTCERT" ) ) {
      this.importCurrentCertificate();
    }
  }

  public void
  setCurrentCertificate( X509Certificate cert ) {
    this.currCert = cert;
    this.detailsPanel.setCurrentCertificate( cert );
    this.rdnPanel.setCurrentCertificate( cert );
    if ( this.importPanel != null ) {
      this.importPanel.setCurrentCertificate( cert );
    }
    this.descriptionPanel.setCurrentCertificate( cert );
  }

  public void
  importCurrentCertificate() {
    try {
      Name nm = (Name) this.currCert.getSubjectDN();
      String emailAddr = nm.getRDN( ObjectID.emailAddress );

      SecurityConfig cfgSec = SecurityConfig.getInstance();

      X509Certificate cert = null;
      
      try {
        cert = cfgSec.getRecipientCertificate( emailAddr );
      } catch ( MissingCertificateException ex ) {
        cert = null;
      }

      boolean doit = true;
      if ( cert != null ) {
        Object[] options = { "OK", "CANCEL" };

        String msg =
          "There is already a certificate for '"
          + emailAddr
          + "'.\nDo you wish to replace it with this certificate?";

        int op = JOptionPane.showOptionDialog( null, msg, "Replace?",
                                               JOptionPane.DEFAULT_OPTION,
                                               JOptionPane.WARNING_MESSAGE, null,
                                               options, options[1] );

        if ( op == JOptionPane.NO_OPTION ) {
          doit = false;
        }
      }

      cfgSec.saveCertificate( emailAddr, this.currCert );

      Configuration.getInstance().saveProperties();
    } catch ( IOException ex ) {
      ex.printStackTrace();
    } catch ( PKCSException ex ) {
      ex.printStackTrace();
    }
  }

  private class CertDetailsPanel
    extends JPanel
  {
    private JLabel   friendlyName;
    private JLabel   before;
    private JLabel   after;
    private JLabel   algorithm;
    private JLabel   serial;
    private JLabel   finger;


    public
    CertDetailsPanel() {
      super();

      this.setLayout( new GridBagLayout() );
      this.setBorder( new EmptyBorder( 4, 4, 4, 4 ) );

      int row = 0;

      JLabel lbl;

      EmptyBorder commonBorder = new EmptyBorder( 3, 4, 1, 4 );

      lbl = new JLabel( "Friendly Name:" );
      lbl.setForeground( Color.black );
      lbl.setBorder( commonBorder );

      AWTUtilities.constrain( this, lbl, GridBagConstraints.NONE,
                               GridBagConstraints.EAST, 0, row, 1, 1, 0.0, 0.0 );

      this.friendlyName = new JLabel( " " );
      this.friendlyName.setHorizontalAlignment( JLabel.LEFT );
      this.friendlyName.setForeground( Color.black );
      this.friendlyName.setBorder( commonBorder );

    //  this.friendlyName.setBorder
    //    ( new CompoundBorder
    //      ( new EmptyBorder( 2, 0, 6, 0 ),
    //        new CompoundBorder
    //          ( new BevelBorder( BevelBorder.LOWERED ),
    //            new EmptyBorder( 1, 2, 1, 2 ) ) ) );


      AWTUtilities.constrain( this, this.friendlyName, GridBagConstraints.HORIZONTAL,
                              GridBagConstraints.WEST, 1, row++, 1, 1, 1.0, 0.0 );

      lbl = new JLabel( "Valid Between:" );
      lbl.setForeground( Color.black );
      lbl.setBorder( commonBorder );

      AWTUtilities.constrain( this, lbl, GridBagConstraints.NONE,
                              GridBagConstraints.EAST, 0, row, 1, 1, 0.0, 0.0,
                              new Insets( 23, 0, 0, 0 ) );

      this.before = new JLabel( " " );
      this.before.setHorizontalAlignment( JLabel.LEFT );
      this.before.setForeground( Color.black );
      this.before.setBorder( commonBorder );

      AWTUtilities.constrain( this, this.before, GridBagConstraints.HORIZONTAL,
                              GridBagConstraints.WEST, 1, row++, 1, 1, 1.0, 0.0,
                              new Insets( 23, 0, 0, 0 ) );

      lbl = new JLabel( "And:" );
      lbl.setForeground( Color.black );
      lbl.setBorder( commonBorder );

      AWTUtilities.constrain( this, lbl, GridBagConstraints.NONE,