Moves verify certificate dialog in separate service in order to use the certificate service in android.

6 files changed, 460 insertions, 310 deletions

diff --git a/src/net/java/sip/communicator/impl/certificate/CertificateServiceImpl.java b/src/net/java/sip/communicator/impl/certificate/CertificateServiceImpl.java
index fc059fe..1a1557c 100644
--- a/src/net/java/sip/communicator/impl/certificate/CertificateServiceImpl.java
+++ b/src/net/java/sip/communicator/impl/certificate/CertificateServiceImpl.java
@@ -18,7 +18,6 @@ import java.util.*;
 

 import javax.net.ssl.*;

 import javax.security.auth.callback.*;

-import javax.swing.*;

 

 import net.java.sip.communicator.plugin.desktoputil.*;

 import net.java.sip.communicator.service.certificate.*;

@@ -29,7 +28,7 @@ import net.java.sip.communicator.util.Logger;
 import org.bouncycastle.asn1.*;

 import org.bouncycastle.asn1.x509.*;

 import org.bouncycastle.asn1.x509.X509Extension;

-import org.bouncycastle.x509.extension.*;
+import org.bouncycastle.x509.extension.*;

 import org.jitsi.service.configuration.*;

 import org.jitsi.service.resources.*;

 import org.jitsi.util.*;

@@ -39,6 +38,7 @@ import org.jitsi.util.*;
  * certificate when the automatic verification fails.

  *

  * @author Ingo Bauersachs

+ * @author Damian Minkov

  */

 public class CertificateServiceImpl

     implements CertificateService, PropertyChangeListener

@@ -182,7 +182,7 @@ public class CertificateServiceImpl
         {

             config.setProperty(PNAME_TRUSTSTORE_TYPE, "Windows-ROOT");

         }

-
+

         if(tsType != null && !"meta:default".equals(tsType))

             System.setProperty("javax.net.ssl.trustStoreType", tsType);

         else

@@ -827,9 +827,9 @@ public class CertificateServiceImpl
                     if (aiaBytes == null)

                         break;

 

-                    AuthorityInformationAccess aia
-                        = AuthorityInformationAccess.getInstance(
-                            X509ExtensionUtil.fromExtensionValue(aiaBytes));
+                    AuthorityInformationAccess aia

+                        = AuthorityInformationAccess.getInstance(

+                            X509ExtensionUtil.fromExtensionValue(aiaBytes));

 

                     // the AIA may contain different URLs and types, try all

                     // of them

@@ -990,29 +990,22 @@ public class CertificateServiceImpl
         if(config.getBoolean(PNAME_NO_USER_INTERACTION, false))

             return DO_NOT_TRUST;

 

-        final VerifyCertificateDialog dialog =

-            new VerifyCertificateDialog(chain, null, message);

-        try

+        if(CertificateVerificationActivator

+                .getCertificateDialogService() == null)

         {

-            // show the dialog in the swing thread and wait for the user

-            // choice

-            SwingUtilities.invokeAndWait(new Runnable()

-            {

-                public void run()

-                {

-                    dialog.setVisible(true);

-                }

-            });

-        }

-        catch (Exception e)

-        {

-            logger.error("Cannot show certificate verification dialog", e);

+            logger.error("Missing CertificateDialogService by default " +

+                "will not trust!");

             return DO_NOT_TRUST;

         }

 

-        if(!dialog.isTrusted)

+        VerifyCertificateDialogService.VerifyCertificateDialog dialog =

+            CertificateVerificationActivator.getCertificateDialogService()

+                .createDialog(chain, null, message);

+        dialog.setVisible(true);

+

+        if(!dialog.isTrusted())

             return DO_NOT_TRUST;

-        else if(dialog.alwaysTrustCheckBox.isSelected())

+        else if(dialog.isAlwaysTrustSelected())

             return TRUST_ALWAYS;

         else

             return TRUST_THIS_SESSION_ONLY;

diff --git a/src/net/java/sip/communicator/impl/certificate/CertificateVerificationActivator.java b/src/net/java/sip/communicator/impl/certificate/CertificateVerificationActivator.java
index fbe5f6f..eeee7e3 100644
--- a/src/net/java/sip/communicator/impl/certificate/CertificateVerificationActivator.java
+++ b/src/net/java/sip/communicator/impl/certificate/CertificateVerificationActivator.java
@@ -43,6 +43,11 @@ public class CertificateVerificationActivator
     private static CredentialsStorageService credService;
 
     /**
+     * The service to create and show dialogs for user interaction.
+     */
+    private static VerifyCertificateDialogService certificateDialogService;
+
+    /**
      * Called when this bundle is started.
      *
      * @param bc The execution context of the bundle being started.
@@ -130,4 +135,23 @@ public class CertificateVerificationActivator
         }
         return credService;
     }
+
+    /**
+     * Returns the <tt>VerifyCertificateDialogService</tt>, through which we
+     * will use to create dialogs.
+     *
+     * @return the <tt>VerifyCertificateDialogService</tt>, through which we
+     * will use to create dialogs.
+     */
+    public static VerifyCertificateDialogService getCertificateDialogService()
+    {
+        if (certificateDialogService == null)
+        {
+            certificateDialogService
+                = ServiceUtils.getService(
+                    bundleContext,
+                    VerifyCertificateDialogService.class);
+        }
+        return certificateDialogService;
+    }
 }
diff --git a/src/net/java/sip/communicator/plugin/desktoputil/DesktopUtilActivator.java b/src/net/java/sip/communicator/plugin/desktoputil/DesktopUtilActivator.java
index dc23458..d8dd51c 100644
--- a/src/net/java/sip/communicator/plugin/desktoputil/DesktopUtilActivator.java
+++ b/src/net/java/sip/communicator/plugin/desktoputil/DesktopUtilActivator.java
@@ -2,10 +2,12 @@ package net.java.sip.communicator.plugin.desktoputil;
 
 import java.awt.image.*;
 import java.net.*;
+import java.security.cert.*;
 
 import javax.imageio.*;
 
 import net.java.sip.communicator.service.browserlauncher.*;
+import net.java.sip.communicator.service.certificate.*;
 import net.java.sip.communicator.service.gui.*;
 import net.java.sip.communicator.service.keybindings.*;
 import net.java.sip.communicator.service.resources.*;
@@ -16,7 +18,8 @@ import org.jitsi.service.resources.*;
 import org.osgi.framework.*;
 
 public class DesktopUtilActivator
-    implements BundleActivator
+    implements BundleActivator,
+               VerifyCertificateDialogService
 {
     /**
      * The <tt>Logger</tt> used by the <tt>SwingUtilActivator</tt> class and its
@@ -50,6 +53,12 @@ public class DesktopUtilActivator
     public void start(BundleContext context) throws Exception
     {
         bundleContext = context;
+
+        // register the VerifyCertificateDialogService
+        bundleContext.registerService(
+            VerifyCertificateDialogService.class.getName(),
+            this,
+            null);
     }
 
     /**
@@ -174,4 +183,18 @@ public class DesktopUtilActivator
             uiService = ServiceUtils.getService(bundleContext, UIService.class);
         return uiService;
     }
+
+    /**
+     * Creates the dialog.
+     *
+     * @param certs the certificates list
+     * @param title The title of the dialog; when null the resource
+     * <tt>service.gui.CERT_DIALOG_TITLE</tt> is loaded and used.
+     * @param message A text that describes why the verification failed.
+     */
+    public VerifyCertificateDialog createDialog(
+        Certificate[] certs, String title, String message)
+    {
+        return new VerifyCertificateDialogImpl(certs, title, message);
+    }
 }
\ No newline at end of file
diff --git a/src/net/java/sip/communicator/impl/certificate/VerifyCertificateDialog.java b/src/net/java/sip/communicator/plugin/desktoputil/VerifyCertificateDialogImpl.java
index bf68514..7bfcf71 100644
--- a/src/net/java/sip/communicator/impl/certificate/VerifyCertificateDialog.java
+++ b/src/net/java/sip/communicator/plugin/desktoputil/VerifyCertificateDialogImpl.java
@@ -1,285 +1,339 @@
-/*

- * Jitsi, the OpenSource Java VoIP and Instant Messaging client.

- *

- * Distributable under LGPL license.

- * See terms of license at gnu.org.

- */

-package net.java.sip.communicator.impl.certificate;

-

-import java.awt.*;

-import java.awt.event.*;

-import java.security.cert.*;

-

-import javax.swing.*;

-

-import net.java.sip.communicator.plugin.desktoputil.*;

-

-import org.jitsi.service.resources.*;

-

-/**

- * Dialog that is shown to the user when a certificate verification failed.

- */

-class VerifyCertificateDialog

-    extends SIPCommDialog

-{

-    /**

-     * Serial version UID.

-     */

-    private static final long serialVersionUID = 0L;

-

-    private ResourceManagementService R = CertificateVerificationActivator

-        .getResources();

-

-    /**

-     * The maximum width that we allow message dialogs to have.

-     */

-    private static final int MAX_MSG_PANE_WIDTH = 600;

-

-    /**

-     * The maximum height that we allow message dialogs to have.

-     */

-    private static final int MAX_MSG_PANE_HEIGHT = 800;

-

-    /**

-     * The certificate to show.

-     */

-    Certificate cert;

-

-    /**

-     * A text that describes why the verification failed.

-     */

-    String message;

-

-    /**

-     * The certificate panel.

-     */

-    TransparentPanel certPanel;

-

-    /**

-     * This dialog content pane.

-     */

-    TransparentPanel contentPane;

-

-    /**

-     * Whether certificate description is shown.

-     */

-    boolean certOpened = false;

-

-    /**

-     * The button to show certificate description.

-     */

-    JButton certButton;

-

-    /**

-     * The check box if checked permanently stored the certificate

-     * which will be always trusted.

-     */

-    SIPCommCheckBox alwaysTrustCheckBox = new SIPCommCheckBox(

-        R.getI18NString("service.gui.ALWAYS_TRUST"),

-        false);

-

-    /**

-     * Whether the user trusts this certificate.

-     */

-    boolean isTrusted = false;

-

-    /**

-     * Creates the dialog.

-     *

-     * @param certs the certificates list

-     * @param title The title of the dialog; when null the resource

-     * <tt>service.gui.CERT_DIALOG_TITLE</tt> is loaded.

-     * @param message A text that describes why the verification failed.

-     */

-    public VerifyCertificateDialog( Certificate[] certs,

-                                    String title, String message)

-    {

-        super(false);

-

-        setTitle(title != null ? title : 

-            R.getI18NString("service.gui.CERT_DIALOG_TITLE"));

-        setModal(true);

-

-        // for now shows only the first certificate from the chain

-        this.cert = certs[0];

-        this.message = message;

-

-        setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);

-

-        init();

-

-        setLocationRelativeTo(getParent());

-    }

-

-    /**

-     * Inits the dialog initial display.

-     */

-    private void init()

-    {

-        this.getContentPane().setLayout(new BorderLayout());

-

-        contentPane =

-            new TransparentPanel(new BorderLayout(5, 5));

-

-        TransparentPanel northPanel =

-            new TransparentPanel(new BorderLayout(5, 5));

-        northPanel.setBorder(BorderFactory.createEmptyBorder(10, 5, 5, 5));

-

-        JLabel imgLabel = new JLabel(

-            R.getImage("service.gui.icons.CERTIFICATE_WARNING"));

-        imgLabel.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));

-        northPanel.add(imgLabel, BorderLayout.WEST);

-

-        StyledHTMLEditorPane descriptionPane = new StyledHTMLEditorPane();

-        descriptionPane.setOpaque(false);

-        descriptionPane.setEditable(false);

-        descriptionPane.setContentType("text/html");

-        descriptionPane.setText(message);

-        descriptionPane.setSize(

-                    new Dimension(MAX_MSG_PANE_WIDTH, MAX_MSG_PANE_HEIGHT));

-        int height = descriptionPane.getPreferredSize().height;

-        descriptionPane.setPreferredSize(

-                    new Dimension(MAX_MSG_PANE_WIDTH, height));

-

-        northPanel.add(descriptionPane, BorderLayout.CENTER);

-        contentPane.add(northPanel, BorderLayout.NORTH);

-

-        certPanel = new TransparentPanel();

-        contentPane.add(certPanel, BorderLayout.CENTER);

-

-        TransparentPanel southPanel =

-            new TransparentPanel(new BorderLayout());

-        contentPane.add(southPanel, BorderLayout.SOUTH);

-

-        certButton = new JButton();

-        certButton.setText(R.getI18NString("service.gui.SHOW_CERT"));

-        certButton.addActionListener(new ActionListener() {

-

-            public void actionPerformed(ActionEvent e)

-            {

-                actionShowCertificate();

-            }

-        });

-        TransparentPanel firstButonPanel =

-            new TransparentPanel(new FlowLayout(FlowLayout.LEFT));

-        firstButonPanel.add(certButton);

-        southPanel.add(firstButonPanel, BorderLayout.WEST);

-

-        TransparentPanel secondButonPanel =

-            new TransparentPanel(new FlowLayout(FlowLayout.RIGHT));

-        JButton cancelButton = new JButton(

-            R.getI18NString("service.gui.CANCEL"));

-

-        cancelButton.addActionListener(new ActionListener() {

-

-            public void actionPerformed(ActionEvent e)

-            {

-                actionCancel();

-            }

-        });

-        JButton continueButton = new JButton(

-            R.getI18NString("service.gui.CONTINUE_ANYWAY"));

-

-        continueButton.addActionListener(new ActionListener() {

-

-            public void actionPerformed(ActionEvent e)

-            {

-                actionContinue();

-            }

-        });

-        secondButonPanel.add(continueButton);

-        secondButonPanel.add(cancelButton);

-        southPanel.add(secondButonPanel, BorderLayout.EAST);

-

-        this.getContentPane().add(contentPane, BorderLayout.CENTER);

-

-        pack();

-    }

-

-    /**

-     * Action when shoe certificate button is clicked.

-     */

-    private void actionShowCertificate()

-    {

-        if(certOpened)

-        {

-            certPanel.removeAll();

-            certButton.setText(R.getI18NString("service.gui.SHOW_CERT"));

-

-            certPanel.revalidate();

-            certPanel.repaint();

-            pack();

-            certOpened = false;

-            setLocationRelativeTo(getParent());

-            return;

-        }

-

-        certPanel.setLayout(new BorderLayout());

-        certPanel.add(alwaysTrustCheckBox, BorderLayout.NORTH);

-

-        Component certInfoPane = null;

-        if(cert instanceof X509Certificate)

-        {

-            certInfoPane = new X509CertificatePanel((X509Certificate)cert);

-        }

-        else

-        {

-            JTextArea textArea = new JTextArea();

-            textArea.setOpaque(false);

-            textArea.setEditable(false);

-            textArea.setText(cert.toString());

-            certInfoPane = textArea;

-        }

-

-        final JScrollPane certScroll = new JScrollPane(certInfoPane);

-        certScroll.setPreferredSize(new Dimension(300, 300));

-        certPanel.add(certScroll, BorderLayout.CENTER);

-

-        SwingUtilities.invokeLater(new Runnable()

-        {

-            public void run()

-            {

-                certScroll.getVerticalScrollBar().setValue(0);

-            }

-        });

-

-        certButton.setText(R.getI18NString("service.gui.HIDE_CERT"));

-

-        certPanel.revalidate();

-        certPanel.repaint();

-        // restore default values for prefered size,

-        // as we have resized its components let it calculate

-        // that size

-        setPreferredSize(null);

-        pack();

-        certOpened = true;

-        setLocationRelativeTo(getParent());

-    }

-

-    /**

-     * Action when cancel button is clicked.

-     */

-    private void actionCancel()

-    {

-        isTrusted = false;

-        dispose();

-    }

-

-    /**

-     * Action when continue is clicked.

-     */

-    private void actionContinue()

-    {

-        isTrusted = true;

-        dispose();

-    }

-

-    /**

-     * Called when dialog closed or escape pressed.

-     * @param isEscaped is escape button pressed.

-     */

-    protected void close(boolean isEscaped)

-    {

-        actionCancel();

-    }

-}

+/*
+ * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
+ *
+ * Distributable under LGPL license.
+ * See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.plugin.desktoputil;
+
+import java.awt.*;
+import java.awt.event.*;
+import java.security.cert.*;
+
+import javax.swing.*;
+
+import net.java.sip.communicator.service.certificate.*;
+import net.java.sip.communicator.util.*;
+import org.jitsi.service.resources.*;
+
+/**
+ * Dialog that is shown to the user when a certificate verification failed.
+ * @author Damian Minkov
+ */
+class VerifyCertificateDialogImpl
+    extends SIPCommDialog
+    implements VerifyCertificateDialogService.VerifyCertificateDialog
+{
+    /**
+     * Our logger.
+     */
+    private static final Logger logger =
+        Logger.getLogger(VerifyCertificateDialogImpl.class);
+
+    /**
+     * Serial version UID.
+     */
+    private static final long serialVersionUID = 0L;
+
+    /**
+     * The resource service.
+     */
+    private ResourceManagementService R = DesktopUtilActivator.getResources();
+
+    /**
+     * The maximum width that we allow message dialogs to have.
+     */
+    private static final int MAX_MSG_PANE_WIDTH = 600;
+
+    /**
+     * The maximum height that we allow message dialogs to have.
+     */
+    private static final int MAX_MSG_PANE_HEIGHT = 800;
+
+    /**
+     * The certificate to show.
+     */
+    Certificate cert;
+
+    /**
+     * A text that describes why the verification failed.
+     */
+    String message;
+
+    /**
+     * The certificate panel.
+     */
+    TransparentPanel certPanel;
+
+    /**
+     * This dialog content pane.
+     */
+    TransparentPanel contentPane;
+
+    /**
+     * Whether certificate description is shown.
+     */
+    boolean certOpened = false;
+
+    /**
+     * The button to show certificate description.
+     */
+    JButton certButton;
+
+    /**
+     * The check box if checked permanently stored the certificate
+     * which will be always trusted.
+     */
+    SIPCommCheckBox alwaysTrustCheckBox = new SIPCommCheckBox(
+        R.getI18NString("service.gui.ALWAYS_TRUST"),
+        false);
+
+    /**
+     * Whether the user trusts this certificate.
+     */
+    boolean isTrusted = false;
+
+    /**
+     * Creates the dialog.
+     *
+     * @param certs the certificates list
+     * @param title The title of the dialog; when null the resource
+     * <tt>service.gui.CERT_DIALOG_TITLE</tt> is loaded.
+     * @param message A text that describes why the verification failed.
+     */
+    public VerifyCertificateDialogImpl(Certificate[] certs,
+                                       String title, String message)
+    {
+        super(false);
+
+        setTitle(title != null ? title : 
+            R.getI18NString("service.gui.CERT_DIALOG_TITLE"));
+        setModal(true);
+
+        // for now shows only the first certificate from the chain
+        this.cert = certs[0];
+        this.message = message;
+
+        setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
+
+        init();
+
+        setLocationRelativeTo(getParent());
+    }
+
+    /**
+     * Inits the dialog initial display.
+     */
+    private void init()
+    {
+        this.getContentPane().setLayout(new BorderLayout());
+
+        contentPane =
+            new TransparentPanel(new BorderLayout(5, 5));
+
+        TransparentPanel northPanel =
+            new TransparentPanel(new BorderLayout(5, 5));
+        northPanel.setBorder(BorderFactory.createEmptyBorder(10, 5, 5, 5));
+
+        JLabel imgLabel = new JLabel(
+            R.getImage("service.gui.icons.CERTIFICATE_WARNING"));
+        imgLabel.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
+        northPanel.add(imgLabel, BorderLayout.WEST);
+
+        StyledHTMLEditorPane descriptionPane = new StyledHTMLEditorPane();
+        descriptionPane.setOpaque(false);
+        descriptionPane.setEditable(false);
+        descriptionPane.setContentType("text/html");
+        descriptionPane.setText(message);
+        descriptionPane.setSize(
+                    new Dimension(MAX_MSG_PANE_WIDTH, MAX_MSG_PANE_HEIGHT));
+        int height = descriptionPane.getPreferredSize().height;
+        descriptionPane.setPreferredSize(
+                    new Dimension(MAX_MSG_PANE_WIDTH, height));
+
+        northPanel.add(descriptionPane, BorderLayout.CENTER);
+        contentPane.add(northPanel, BorderLayout.NORTH);
+
+        certPanel = new TransparentPanel();
+        contentPane.add(certPanel, BorderLayout.CENTER);
+
+        TransparentPanel southPanel =
+            new TransparentPanel(new BorderLayout());
+        contentPane.add(southPanel, BorderLayout.SOUTH);
+
+        certButton = new JButton();
+        certButton.setText(R.getI18NString("service.gui.SHOW_CERT"));
+        certButton.addActionListener(new ActionListener() {
+
+            public void actionPerformed(ActionEvent e)
+            {
+                actionShowCertificate();
+            }
+        });
+        TransparentPanel firstButonPanel =
+            new TransparentPanel(new FlowLayout(FlowLayout.LEFT));
+        firstButonPanel.add(certButton);
+        southPanel.add(firstButonPanel, BorderLayout.WEST);
+
+        TransparentPanel secondButonPanel =
+            new TransparentPanel(new FlowLayout(FlowLayout.RIGHT));
+        JButton cancelButton = new JButton(
+            R.getI18NString("service.gui.CANCEL"));
+
+        cancelButton.addActionListener(new ActionListener() {
+
+            public void actionPerformed(ActionEvent e)
+            {
+                actionCancel();
+            }
+        });
+        JButton continueButton = new JButton(
+            R.getI18NString("service.gui.CONTINUE_ANYWAY"));
+
+        continueButton.addActionListener(new ActionListener() {
+
+            public void actionPerformed(ActionEvent e)
+            {
+                actionContinue();
+            }
+        });
+        secondButonPanel.add(continueButton);
+        secondButonPanel.add(cancelButton);
+        southPanel.add(secondButonPanel, BorderLayout.EAST);
+
+        this.getContentPane().add(contentPane, BorderLayout.CENTER);
+
+        pack();
+    }
+
+    /**
+     * Action when shoe certificate button is clicked.
+     */
+    private void actionShowCertificate()
+    {
+        if(certOpened)
+        {
+            certPanel.removeAll();
+            certButton.setText(R.getI18NString("service.gui.SHOW_CERT"));
+
+            certPanel.revalidate();
+            certPanel.repaint();
+            pack();
+            certOpened = false;
+            setLocationRelativeTo(getParent());
+            return;
+        }
+
+        certPanel.setLayout(new BorderLayout());
+        certPanel.add(alwaysTrustCheckBox, BorderLayout.NORTH);
+
+        Component certInfoPane = null;
+        if(cert instanceof X509Certificate)
+        {
+            certInfoPane = new X509CertificatePanel((X509Certificate)cert);
+        }
+        else
+        {
+            JTextArea textArea = new JTextArea();
+            textArea.setOpaque(false);
+            textArea.setEditable(false);
+            textArea.setText(cert.toString());
+            certInfoPane = textArea;
+        }
+
+        final JScrollPane certScroll = new JScrollPane(certInfoPane);
+        certScroll.setPreferredSize(new Dimension(300, 300));
+        certPanel.add(certScroll, BorderLayout.CENTER);
+
+        SwingUtilities.invokeLater(new Runnable()
+        {
+            public void run()
+            {
+                certScroll.getVerticalScrollBar().setValue(0);
+            }
+        });
+
+        certButton.setText(R.getI18NString("service.gui.HIDE_CERT"));
+
+        certPanel.revalidate();
+        certPanel.repaint();
+        // restore default values for prefered size,
+        // as we have resized its components let it calculate
+        // that size
+        setPreferredSize(null);
+        pack();
+        certOpened = true;
+        setLocationRelativeTo(getParent());
+    }
+
+    /**
+     * Action when cancel button is clicked.
+     */
+    private void actionCancel()
+    {
+        isTrusted = false;
+        dispose();
+    }
+
+    /**
+     * Action when continue is clicked.
+     */
+    private void actionContinue()
+    {
+        isTrusted = true;
+        dispose();
+    }
+
+    /**
+     * Called when dialog closed or escape pressed.
+     * @param isEscaped is escape button pressed.
+     */
+    protected void close(boolean isEscaped)
+    {
+        actionCancel();
+    }
+
+    /**
+     * Whether the user has accepted the certificate or not.
+     * @return whether the user has accepted the certificate or not.
+     */
+    public boolean isTrusted()
+    {
+        return this.isTrusted;
+    }
+
+    /**
+     * Whether the user has selected to note the certificate so we always
+     * trust it.
+     * @return whether the user has selected to note the certificate so
+     * we always trust it.
+     */
+    public boolean isAlwaysTrustSelected()
+    {
+        return this.alwaysTrustCheckBox.isSelected();
+    }
+
+    /**
+     * Shows or hides the dialog and waits for user response.
+     * @param isVisible whether we should show or hide the dialog.
+     */
+    public void setVisible(boolean isVisible)
+    {
+        try
+        {
+            // show the dialog in the swing thread and wait for the user
+            // choice
+            SwingUtilities.invokeAndWait(new Runnable()
+            {
+                public void run()
+                {
+                    VerifyCertificateDialogImpl.super.setVisible(true);
+                }
+            });
+        }
+        catch (Exception e)
+        {
+            logger.error("Cannot show certificate verification dialog", e);
+        }
+    }
+}
diff --git a/src/net/java/sip/communicator/plugin/desktoputil/desktoputil.manifest.mf b/src/net/java/sip/communicator/plugin/desktoputil/desktoputil.manifest.mf
index 8b46590..575c066 100644
--- a/src/net/java/sip/communicator/plugin/desktoputil/desktoputil.manifest.mf
+++ b/src/net/java/sip/communicator/plugin/desktoputil/desktoputil.manifest.mf
@@ -32,6 +32,7 @@ Import-Package: com.sun.awt,
  net.java.sip.communicator.util,
  net.java.sip.communicator.util.skin,
  net.java.sip.communicator.util.wizard,
+ net.java.sip.communicator.service.certificate,
  net.java.sip.communicator.service.gui,
  net.java.sip.communicator.service.resources,
  net.java.sip.communicator.service.keybindings,
diff --git a/src/net/java/sip/communicator/service/certificate/VerifyCertificateDialogService.java b/src/net/java/sip/communicator/service/certificate/VerifyCertificateDialogService.java
new file mode 100644
index 0000000..7cb3e43
--- /dev/null
+++ b/src/net/java/sip/communicator/service/certificate/VerifyCertificateDialogService.java
@@ -0,0 +1,55 @@
+/*
+ * Jitsi, the OpenSource Java VoIP and Instant Messaging client.
+ *
+ * Distributable under LGPL license.
+ * See terms of license at gnu.org.
+ */
+package net.java.sip.communicator.service.certificate;
+
+import java.security.cert.*;
+
+/**
+ * Service that creates dialog that is shown to the user when
+ * a certificate verification failed.
+ *
+ * @author Damian Minkov
+ */
+public interface VerifyCertificateDialogService
+{
+    /**
+     * Creates the dialog.
+     *
+     * @param certs the certificates list
+     * @param title The title of the dialog; when null the resource
+     * <tt>service.gui.CERT_DIALOG_TITLE</tt> is loaded and used.
+     * @param message A text that describes why the verification failed.
+     */
+    public VerifyCertificateDialog createDialog(
+        Certificate[] certs, String title, String message);
+
+    /**
+     * The dialog implementers should return <tt>VerifyCertificateDialog</tt>.
+     */
+    public interface VerifyCertificateDialog
+    {
+        /**
+         * Shows or hides the dialog and waits for user response.
+         * @param isVisible whether we should show or hide the dialog.
+         */
+        public void setVisible(boolean isVisible);
+
+        /**
+         * Whether the user has accepted the certificate or not.
+         * @return whether the user has accepted the certificate or not.
+         */
+        public boolean isTrusted();
+
+        /**
+         * Whether the user has selected to note the certificate so we always
+         * trust it.
+         * @return whether the user has selected to note the certificate so
+         * we always trust it.
+         */
+        public boolean isAlwaysTrustSelected();
+    }
+}