formsignedsignaturewidgetfactory.java

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        final JDialog dialog; 
        if (window instanceof Frame) {
            dialog = new JDialog((Frame)window, SuperJOptionPane.getLocalizedString("DigitalIdentities"), true);
        } else {
            dialog = new JDialog((Dialog)window, SuperJOptionPane.getLocalizedString("DigitalIdentities"), true);
        }
        final JPanel buttonpane = new JPanel();
        /*
        if (state.getCertificate()!=null) {
            final JButton trustbutton = new JButton("Trust Certificate");
            trustbutton.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent evt) {
                    try {
                        getKeyStoreManager().trustCertificate(null, state.getCertificate());
                        FormSignature field = state.getSignature();
                        SignatureState newstate = validate(field);
                        docpanel.putClientProperty(field, newstate);
                        tabbedpane.setComponentAt(0, getSignatureStatePanel(newstate));
                        trustbutton.setEnabled(false);
                    } catch (Exception e) {
                        SuperJOptionPane.displayThrowable("Error", e, docpanel);
                    }
                }
            });
            buttonpane.add(trustbutton);
        }
        */
        JButton okbutton = new JButton(SuperJOptionPane.getLocalizedString("OK"));
        okbutton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent evt) {
                dialog.dispose();
            }
        });
        buttonpane.add(okbutton);
        JPanel body = new JPanel(new BorderLayout());
        body.add(tabbedpane, BorderLayout.CENTER);
        body.add(buttonpane, BorderLayout.SOUTH);

        dialog.setContentPane(body);
        dialog.setResizable(true);
        dialog.pack();
        dialog.setLocationRelativeTo(docpanel);
        dialog.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent evt) {
                dialog.dispose();
            }
        });
        dialog.setVisible(true);
    }

    /**
     * Return an {@link Icon} that visually represents the state of the signature. This
     * will be displayed in the document and in the Popup used by
     * {@link #displaySignatureState displaySignatureState()}
     * @param state the state
     */
    public Icon getIcon(SignatureState state) {
        Icon icon;
        if (state==null || state.getValidity()==null) {
            icon = new ImageIcon(PDFViewer.class.getResource("resources/icons/help.png"));
        } else if (state.getValidity()==Boolean.FALSE) {
            icon = new ImageIcon(PDFViewer.class.getResource("resources/icons/cross.png"));
        } else {
            int type = state.getSignature().getCertificationType();
            if (type==FormSignature.CERTIFICATION_UNCERTIFIED) {
                icon = new ImageIcon(PDFViewer.class.getResource("resources/icons/tick.png"));
            } else {
                icon = new ImageIcon(PDFViewer.class.getResource("resources/icons/rosette.png"));
            }
        }
        return icon;
    }

    /**
     * Return a JComponent that contains information about the SignatureState.
     * This method is used internally by the {@link #displaySignatureState displaySignatureState()}
     * method, and there's generally no reason to call it directly.
     * @param state the SignatureState to display
     */
    private JComponent getSignatureStatePanel(SignatureState state) {
        String title, reason;
        FormSignature sig = state.getSignature();

        if (state.getValidity()==null) {
            title = SuperJOptionPane.getLocalizedString("ssig.UnknownValidity");
            reason = state.getReason();
        } else if (state.getValidity()==Boolean.FALSE) {
            title = SuperJOptionPane.getLocalizedString("ssig.InvalidSignature");
            reason = state.getReason();
        } else {
            int type = sig.getCertificationType();
            if (type==FormSignature.CERTIFICATION_UNCERTIFIED) {
                if (state.isAlteredSince()) {
                    title = SuperJOptionPane.getLocalizedString("ssig.ValidSignatureAlt");
                } else {
                    title = SuperJOptionPane.getLocalizedString("ssig.ValidSignature");
                }
            } else {
                if (state.isAlteredSince()) {
                    title = SuperJOptionPane.getLocalizedString("ssig.DocumentCertifiedAlt");
                } else {
                    title = SuperJOptionPane.getLocalizedString("ssig.DocumentCertified");
                }
            }
            if (state.getCertificate()!=null) {
                String name = "unknown";
                try {
                    String z = FormSignature.getSubjectField(state.getCertificate(), "CN");
                    if (z==null) z = FormSignature.getSubjectField(state.getCertificate(), "O");
                    name = "\""+z+"\"";
                } catch (Exception e) {}
                reason = SuperJOptionPane.getLocalizedString("ssig.SigNotCertVerified", name);
            } else {
                reason = SuperJOptionPane.getLocalizedString("ssig.SigCertBothVerified");
            }
        }

        GridBagConstraints all = new GridBagConstraints();
        GridBagConstraints key = new GridBagConstraints();
        GridBagConstraints val = new GridBagConstraints();
        JPanel body = new JPanel(new GridBagLayout());

        all.weightx = 0.5;
        all.fill = key.fill = val.fill = GridBagConstraints.HORIZONTAL;
        key.weighty = all.weighty = val.weighty = 0;
        key.gridx = all.gridx = 0;
        all.gridwidth = 3;
        key.gridwidth = 1;
        key.insets = new Insets(0, 0, 0, 20);
        val.gridx = 1;
        val.gridwidth = GridBagConstraints.REMAINDER;

        JLabel label = new JLabel(title);
        label.setIcon(getIcon(state));
        label.setFont(new Font("SansSerif", Font.BOLD, 14));
        label.setBorder(new EmptyBorder(0,0,12,0));
        body.add(label, all);

        all.weighty = 1;
        label = new JLabel(reason);
        label.setBorder(new EmptyBorder(0,0,12,0));
        body.add(label, all);

        body.add(new JLabel(SuperJOptionPane.getLocalizedString("Name")), key);
        body.add(new JLabel(sig.getName()==null?"":sig.getName()), val);
        body.add(new JLabel(SuperJOptionPane.getLocalizedString("Date")), key);
        body.add(new JLabel(DateFormat.getDateTimeInstance(DateFormat.LONG, DateFormat.LONG).format(sig.getSignDate().getTime())), val);
        body.add(new JLabel(SuperJOptionPane.getLocalizedString("Revision")), key);
        body.add(new JLabel(sig.getNumberOfRevisionsCovered()+" / "+sig.getForm().getPDF().getNumberOfRevisions()), val);
        body.add(new JLabel(SuperJOptionPane.getLocalizedString("Reason")), key);
        body.add(new JLabel(sig.getReason()==null?SuperJOptionPane.getLocalizedString("NotSpecified"):sig.getReason()), val);
        body.add(new JLabel(SuperJOptionPane.getLocalizedString("Location")), key);
        body.add(new JLabel(sig.getLocation()==null?SuperJOptionPane.getLocalizedString("NotSpecified"):sig.getLocation()), val);
        if (sig.getCertificationType()!=0) {
            String[] certifications = { "cert.Uncertified", "cert.NoChanges", "cert.ModifyForms", "cert.ModifyComments" };
            body.add(new JLabel(SuperJOptionPane.getLocalizedString("Certification")), key);
            body.add(new JLabel(SuperJOptionPane.getLocalizedString(certifications[sig.getCertificationType()])), val);
        }

        body.setBorder(new CompoundBorder(BorderFactory.createEtchedBorder(), new EmptyBorder(10,10,10,10)));
        return body;
    }

    /**
     * Return a JComponent that contains information about the X.509 certificates used in the signature.
     * This method is used internally by the {@link #displaySignatureState displaySignatureState()}
     * method, and there's generally no reason to call it directly.
     * @param certs the list of Certificates to display
     */
    private JComponent getCertificatesPanel(final X509Certificate[] certs, final FormSignature field, final X509Certificate cert, final JTabbedPane tabbedpane, final DocumentPanel docpanel) throws CertificateException {
        Vector v = new Vector();
        for (int i=0;i<certs.length;i++) {
            String name = FormSignature.getSubjectField(certs[i], "CN");
            if (name==null) name = FormSignature.getSubjectField(certs[i], "O");
            v.add(name);
        }

        final JList list = new JList(v);
        JScrollPane leftscroll = new JScrollPane(list);
        leftscroll.setPreferredSize(new Dimension(200, 200));

        final JPanel right = new JPanel(new BorderLayout());
        final JScrollPane rightscroll = new JScrollPane(new JPanel());
        rightscroll.setPreferredSize(new Dimension(250, 200));
        right.add(rightscroll, BorderLayout.CENTER);

        if (cert!=null) {
            final JButton trustbutton = new JButton(SuperJOptionPane.getLocalizedString("ssig.TrustCertificate"));
            trustbutton.addActionListener(new ActionListener() {
                public void actionPerformed(ActionEvent evt) {
                    try {
                        getKeyStoreManager().trustCertificate(null, certs[list.getSelectedIndex()]);
                        SignatureState newstate = validate(field);
                        docpanel.putClientProperty(field, newstate);
                        tabbedpane.setComponentAt(0, getSignatureStatePanel(newstate));
                        trustbutton.setEnabled(false);
                    } catch (Exception e) {
                        SuperJOptionPane.displayThrowable(SuperJOptionPane.getLocalizedString("Error"), e, docpanel);
                    }
                }
            });
            right.add(trustbutton, BorderLayout.SOUTH);
        }

        JSplitPane splitpane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, leftscroll, right);
        list.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
        list.addListSelectionListener(new ListSelectionListener() {
            public void valueChanged(ListSelectionEvent event) {
                rightscroll.setViewportView(getCertificatePanel(certs[list.getSelectedIndex()]));
            }
        });
        list.setSelectedIndex(0);
        splitpane.setBorder(BorderFactory.createEtchedBorder());
        return splitpane;
    }

    /**
     * Return a JComponent that contains information about a single X.509 certificate.
     * This method is used internally by the {@link #displaySignatureState displaySignatureState()}
     * method, and there's generally no reason to call it directly.
     * @param cert the Certificate to display
     */
    private JComponent getCertificatePanel(X509Certificate cert) {
        JTextArea field = new JTextArea();
        field.setFont(new Font("Monospace", 0, 9));
        field.setText(cert.toString());
        return field;
    }

    private JComponent getTimestampPanel(SignatureState state, DocumentPanel docpanel) {
        X509Certificate[] certs = null;
        FormSignature sig = state.getSignature();
        JPanel panel = new JPanel(new BorderLayout());
        Calendar when = sig.getSignDate();
        if (sig.getSignatureHandler() instanceof PKCS7SignatureHandler) {
            try {
                certs = ((PKCS7SignatureHandler)sig.getSignatureHandler()).getTimeStampCertificates();
                if (certs==null) {
                    panel.add(new JLabel(SuperJOptionPane.getLocalizedString("ssig.DateFromComputer")), BorderLayout.NORTH);
                } else {
                    String issuer = null;
                    X509Certificate badcert = null;
                    if (getKeyStoreManager().getKeyStore()==null) throw new Exception("No KeyStore available");
                    issuer = FormSignature.getSubjectField(certs[0], "CN");
                    badcert = FormSignature.verifyCertificates(certs, getKeyStoreManager().getKeyStore(), null, when);
                    String validity;
                    if (badcert==null) {
                        validity = SuperJOptionPane.getLocalizedString("ssig.DateGuaranteedKnown", issuer);
                    } else {
                        validity = SuperJOptionPane.getLocalizedString("ssig.DateGuaranteedUnknown", issuer);
                    }
                    panel.add(new JLabel(validity), BorderLayout.NORTH);
                    try {
                        panel.add(getCertificatesPanel(certs, state.getSignature(), badcert, null, docpanel), BorderLayout.CENTER);
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }
            } catch (Exception e) {
                panel.add(new JLabel(SuperJOptionPane.getLocalizedString("ssig.ErrorVerifyingTimestamp", e.getMessage())), BorderLayout.NORTH);
            }
        }
        panel.setBorder(new CompoundBorder(BorderFactory.createEtchedBorder(), new EmptyBorder(10,10,10,10)));
        return panel;
    }
}