securityconfigdialog.java

一个用java写的mail.里面的代码值得我们去研究！学习。

          DigitalIDInfo info = (DigitalIDInfo) this.idTable.get( email );

          X509Certificate[] certChain = info.getCertificateChain();

          this.viewCertificates( certChain );
        } catch ( PasswordCancelException ex ) {
          String message =
            "Could not obtain the digital certificate for\n"
            + "the email address '"
            + email
            + "'.\n"
            + "A proper password was not provided.";

          JOptionPane.showMessageDialog( null, message, "No Certificate",
                                         JOptionPane.WARNING_MESSAGE );
        } catch ( PKCSException ex ) {
          ex.printStackTrace();
        }
      }
    } else if ( command.equals( "VIEWCERT" ) ) {
      String email = (String) this.certCombo.getSelectedItem();
      if ( email != null ) {
        CertificateInfo info = (CertificateInfo) this.certTable.get( email );

        X509Certificate[] certChain = null;

        if ( info.isCertificateChain() ) {
          certChain = info.getCertificateChain();
        } else {
          certChain = new X509Certificate[1];
          certChain[0] = info.getCertificate();
        }

        this.viewCertificates( certChain );
      }
    }

    if ( disposeIt ) {
      this.dispose();
    }
  }
  
  private void
  importDigitalId( String dName, String fName ) {
    X509Certificate[] certs = null;

    FileInputStream fin = null;
    File f = new File( dName, fName );

    try {
      fin = new FileInputStream( f );

      byte[] p12Bytes = StreamUtilities.getStreamBytes( fin );

      if ( fName.endsWith( ".pfx" ) || fName.endsWith( ".PFX" ) ) {
        MicrosoftP12 mp12 =
          new MicrosoftP12( new ByteArrayInputStream( p12Bytes ) );

        DigitalIDInfo info = new DigitalIDInfo( "N/A", null, mp12 );

        certs = info.getCertificateChain();
        Name nm = (Name) certs[certs.length-1].getSubjectDN();
        String email = nm.getRDN( ObjectID.emailAddress );

        info.setEMailString( email );
        this.idTable.put( email, info );
      } else if ( fName.endsWith( ".p12" ) || fName.endsWith( ".P12" ) ) {
        NetscapeP12 np12 =
          new NetscapeP12( new ByteArrayInputStream( p12Bytes ) );

        DigitalIDInfo info = new DigitalIDInfo( "N/A", null, np12 );

        certs = info.getCertificateChain();
        Name nm = (Name) certs[certs.length-1].getSubjectDN();
        String email = nm.getRDN( ObjectID.emailAddress );

        info.setEMailString( email );
        this.idTable.put( email, info );
      } else {
        // UNDONE
      }
    } catch ( PasswordCancelException ex ) {
      String message =
        "Could not import the digital certificate from\n"
        + "the file named '"
        + fName
        + "'.\n"
        + "A proper password was not provided.";

      JOptionPane.showMessageDialog( null, message, "Import Failed",
                                     JOptionPane.WARNING_MESSAGE );
    } catch ( FileNotFoundException ex ) {
      ex.printStackTrace();
    } catch ( IOException ex ) {
      ex.printStackTrace();
    } catch ( PKCSParsingException ex ) {
      ex.printStackTrace();
    } catch ( PKCSException ex ) {
      ex.printStackTrace();
    } finally {
      if ( fin != null ) {
        try {
          fin.close();
        } catch ( IOException ex ) {
        }
      }
    }

    this.loadComboBoxes();
  }

  private void
  importCertificate( String dName, String fName ) {
    X509Certificate[] certs = null;

    FileInputStream fin = null;
    File f = new File( dName, fName );

    try {
      fin = new FileInputStream( f );

      if ( fName.endsWith( ".der" ) || fName.endsWith( ".cer" ) ) {
        X509Certificate cert = new X509Certificate( fin );

        Name nm = (Name) cert.getSubjectDN();
        String emailAddr = nm.getRDN( ObjectID.emailAddress );

        CertificateInfo info = new CertificateInfo( emailAddr, cert );

        this.certTable.put( emailAddr, info );
      } else {
        // UNDONE
      }
    } catch ( FileNotFoundException ex ) {
      ex.printStackTrace();
    } catch ( IOException ex ) {
      ex.printStackTrace();
    } catch ( CertificateException ex ) {
      ex.printStackTrace();
    } finally {
      if ( fin != null ) {
        try {
          fin.close();
        } catch ( IOException ex ) {
        }
      }
    }

    this.loadComboBoxes();
  }

  private void
  viewCertificates( X509Certificate[] certs ) {
    CertificateDialog dlg = new CertificateDialog( null, "Certificates", certs, false );

    dlg.setLocation( AWTUtilities.computeDialogLocation( dlg ) );

    dlg.show();
  }

  private void
  establishContents() {
    JLabel      lbl;
    JScrollPane scroller;
    Container   cont = this.getContentPane();

    cont.setLayout( new GridBagLayout() );

    int row = 0;

    JPanel myPan = new JPanel();
    myPan.setLayout( new GridBagLayout() );
    myPan.setBorder( new EmptyBorder( 4, 4, 4, 4 ) );
    AWTUtilities.constrain( cont, myPan, GridBagConstraints.BOTH,
                            GridBagConstraints.NORTH, 0, row++, 2, 1, 1.0, 1.0 );

    int subRow = 0;

    lbl = new JLabel( "My Identities:" );
    lbl.setHorizontalAlignment( JLabel.RIGHT );
    AWTUtilities.constrain( myPan, lbl, GridBagConstraints.NONE,
                            GridBagConstraints.WEST, 0, subRow, 1, 1, 0.0, 0.0 );

    this.idCombo = new JComboBox();
    this.idCombo.addItemListener( this );

    AWTUtilities.constrain( myPan, this.idCombo, GridBagConstraints.HORIZONTAL,
                            GridBagConstraints.WEST, 1, subRow++, 1, 1, 1.0, 0.0 );

    this.idInfoText = new JTextArea();
    scroller = new JScrollPane( this.idInfoText );
    AWTUtilities.constrain( myPan, scroller, GridBagConstraints.BOTH,
                            GridBagConstraints.CENTER, 0, subRow++, 2, 1, 1.0, 1.0 );

    JLabel spacer = new JLabel( "" );
    AWTUtilities.constrain( myPan, spacer, GridBagConstraints.HORIZONTAL,
                            GridBagConstraints.CENTER, 0, subRow, 1, 1, 1.0, 0.0 );

    JPanel idCtlPan = new JPanel();
    AWTUtilities.constrain( myPan, idCtlPan, GridBagConstraints.NONE,
                            GridBagConstraints.EAST, 1, subRow++, 1, 1, 0.0, 0.0,
                            new Insets( 2, 4, 2, 5 ) );

    this.idViewBtn = new JButton( "View..." );
    this.idViewBtn.addActionListener( this );
    this.idViewBtn.setActionCommand( "VIEWID" );
    idCtlPan.add( this.idViewBtn );

    JButton myImport = new JButton( "Import..." );
    myImport.addActionListener( this );
    myImport.setActionCommand( "IMPORTID" );
    idCtlPan.add( myImport );

    AWTUtilities.constrain( cont, new JSeparator( JSeparator.HORIZONTAL ),
                            GridBagConstraints.HORIZONTAL, GridBagConstraints.CENTER,
                            0, row++, 2, 1, 1.0, 0.0 );

    JPanel otherPan = new JPanel();
    otherPan.setLayout( new GridBagLayout() );
    otherPan.setBorder( new EmptyBorder( 4, 4, 4, 4 ) );
    AWTUtilities.constrain( cont, otherPan, GridBagConstraints.BOTH,
                            GridBagConstraints.NORTH, 0, row++, 2, 1, 1.0, 1.0 );

    subRow = 0;

    lbl = new JLabel( "Other Identities:" );
    lbl.setHorizontalAlignment( JLabel.RIGHT );
    AWTUtilities.constrain( otherPan, lbl, GridBagConstraints.NONE,
                            GridBagConstraints.WEST, 0, subRow, 1, 1, 0.0, 0.0 );

    this.certCombo = new JComboBox();
    this.certCombo.addItemListener( this );

    AWTUtilities.constrain( otherPan, this.certCombo, GridBagConstraints.HORIZONTAL,
                            GridBagConstraints.WEST, 1, subRow++, 1, 1, 1.0, 0.0 );

    this.certInfoText = new JTextArea();
    scroller = new JScrollPane( this.certInfoText );
    AWTUtilities.constrain( otherPan, scroller, GridBagConstraints.BOTH,
                            GridBagConstraints.CENTER, 0, subRow++, 2, 1, 1.0, 1.0 );

    JLabel ospacer = new JLabel( "" );
    AWTUtilities.constrain( otherPan, ospacer, GridBagConstraints.HORIZONTAL,
                            GridBagConstraints.CENTER, 0, subRow, 1, 1, 1.0, 0.0 );

    JPanel oCtlPan = new JPanel();
    AWTUtilities.constrain( otherPan, oCtlPan, GridBagConstraints.NONE,
                            GridBagConstraints.EAST, 1, subRow++, 1, 1, 0.0, 0.0,
                            new Insets( 2, 4, 2, 5 ) );

    this.certViewBtn = new JButton( "View..." );
    this.certViewBtn.addActionListener( this );
    this.certViewBtn.setActionCommand( "VIEWCERT" );
    oCtlPan.add( this.certViewBtn );

    JButton certImport = new JButton( "Import..." );
    certImport.addActionListener( this );
    certImport.setActionCommand( "IMPORTCERT" );
    oCtlPan.add( certImport );

    AWTUtilities.constrain( cont, new JSeparator( JSeparator.HORIZONTAL ),
                            GridBagConstraints.HORIZONTAL, GridBagConstraints.CENTER,
                            0, row++, 2, 1, 1.0, 0.0 );

    JPanel ctlPan = new JPanel();
    ctlPan.setLayout( new BorderLayout() );
    AWTUtilities.constrain( cont, ctlPan, GridBagConstraints.HORIZONTAL,
                            GridBagConstraints.CENTER, 0, row++, 2, 1, 1.0, 0.0 );

    JPanel btnPan = new JPanel();
    btnPan.setLayout( new GridLayout( 1, 2, 10, 10 ) );
    btnPan.setBorder( new EmptyBorder( 8, 5, 5, 5 ) );
    ctlPan.add( BorderLayout.EAST, btnPan );

    JButton btn;

    btn = new JButton( "Save" );
    btn.addActionListener( this );
    btn.setActionCommand( "SAVE" );
    btnPan.add( btn );

    btn = new JButton( "Cancel" );
    btn.addActionListener( this );
    btn.setActionCommand( "CANCEL" );
    btnPan.add( btn );
  }

}