public void processBye(RequestEvent requestEvent, ServerTransaction serverTransaction) {
    try {
      logger.debug("DEBUG: IMByeProcessing, Processing BYE in progress...");

      Request request = requestEvent.getRequest();

      MessageFactory messageFactory = imUA.getMessageFactory();
      InstantMessagingGUI instantMessagingGUI = imUA.getInstantMessagingGUI();
      ListenerInstantMessaging listenerInstantMessaging =
          instantMessagingGUI.getListenerInstantMessaging();
      ChatSessionManager chatSessionManager = listenerInstantMessaging.getChatSessionManager();
      String buddy = IMUtilities.getKey(request, "From");
      if (chatSessionManager.hasAlreadyChatSession(buddy)) {
        chatSessionManager.removeChatSession(buddy);
        // chatSession.setExitedSession(true,"Your contact has exited
        // the session");
      } else {
        logger.debug("DEBUG: IMByeProcessing, processBye(), no active chatSession");
      }

      // Send an OK
      Response response = messageFactory.createResponse(Response.OK, request);
      serverTransaction.sendResponse(response);
      logger.debug("DEBUG: IMByeProcessing, processBye(), OK replied to the BYE");

      logger.debug("DEBUG: IMByeProcessing, Processing BYE completed...");
    } catch (Exception ex) {
      ex.printStackTrace();
    }
  }
  public void processOK(Response responseCloned, ClientTransaction clientTransaction) {
    try {
      logger.debug("Processing OK for SUBSCRIBE in progress...");

      ExpiresHeader expiresHeader = (ExpiresHeader) responseCloned.getHeader(ExpiresHeader.NAME);
      if (expiresHeader != null && expiresHeader.getExpires() == 0) {
        logger.debug(
            "DEBUG, IMSubscribeProcessing, processOK(), we got" + " the OK for the unsubscribe...");
      } else {

        // We have to create or update the presentity!
        PresenceManager presenceManager = imUA.getPresenceManager();
        String presentityURL = IMUtilities.getKey(responseCloned, "To");

        Dialog dialog = clientTransaction.getDialog();
        if (dialog != null) presenceManager.addPresentity(presentityURL, responseCloned, dialog);
        else {
          logger.debug(
              "ERROR, IMSubscribeProcessing, processOK(), the"
                  + " dialog for the SUBSCRIBE we sent is null!!!"
                  + " No presentity added....");
        }

        // WE have to create a new Buddy in the GUI!!!
        InstantMessagingGUI imGUI = imUA.getInstantMessagingGUI();
        BuddyList buddyList = imGUI.getBuddyList();
        if (!buddyList.hasBuddy(presentityURL)) {
          buddyList.addBuddy(presentityURL, "offline");
        } else {
          logger.debug("The buddy is already in the Buddy list...");
        }
      }
      logger.debug("Processing OK for SUBSCRIBE completed...");
    } catch (Exception ex) {
      ex.printStackTrace();
    }
  }
  public void submitButtonActionPerformed(ActionEvent evt) {
    String text = "";

    IMUserAgent imUA = imGUI.getInstantMessagingUserAgent();
    IMRegisterProcessing imRegisterProcessing = imUA.getIMRegisterProcessing();
    if (!imRegisterProcessing.isRegistered()) {

      String temp = outboundProxyAddressTextField.getText();
      if (temp != null && !temp.trim().equals(""))
        text += "examples.im.outboundProxyAddress=" + temp + "\n";

      temp = outboundProxyPortTextField.getText();
      if (temp != null && !temp.trim().equals(""))
        text += "examples.im.outboundProxyPort=" + temp + "\n";

      temp = registrarAddressTextField.getText();
      if (temp != null && !temp.trim().equals(""))
        text += "examples.im.registrarAddress=" + temp + "\n";

      temp = registrarPortTextField.getText();
      if (temp != null && !temp.trim().equals(""))
        text += "examples.im.registrarPort=" + temp + "\n";

      temp = imAddressTextField.getText();
      if (temp != null && !temp.trim().equals("")) text += "examples.im.imAddress=" + temp + "\n";

      temp = imPortTextField.getText();
      if (temp != null && !temp.trim().equals("")) text += "examples.im.imPort=" + temp + "\n";

      temp = imProtocolTextField.getText();
      if (temp != null && !temp.trim().equals("")) text += "examples.im.imProtocol=" + temp + "\n";

      temp = outputFileTextField.getText();
      if (temp != null && !temp.trim().equals("")) {
        text += "examples.im.outputFile=" + temp + "\n";

        DebugIM.setDebugFile(temp);
      } else DebugIM.setDebugFile(null);

      temp = buddiesFileTextField.getText();
      if (temp != null && !temp.trim().equals("")) text += "examples.im.buddiesFile=" + temp + "\n";

      temp = authenticationFileTextField.getText();
      if (temp != null && !temp.trim().equals(""))
        text += "examples.im.authenticationFile=" + temp + "\n";

      temp = defaultRouterTextField.getText();
      if (temp != null && !temp.trim().equals(""))
        text += "examples.im.defaultRouter=" + temp + "\n";

      temp = imGUI.getLocalSipURLTextField().getText();
      if (temp != null && !temp.trim().equals("")) text += "examples.im.localSipURL=" + temp + "\n";

      String propertiesFile = imGUI.getPropertiesFile();
      if (propertiesFile == null)
        DebugIM.println(
            "DebugIM, unable to write the "
                + "properties, specify a properties file when you start the client");
      else {
        IMUtilities.writeFile(propertiesFile, text);
        imGUI.restart();
      }
      this.setVisible(false);

    } else {
      new AlertInstantMessaging(
          "You must sign out from the registrar before changing something!!!",
          JOptionPane.ERROR_MESSAGE);
    }
  }
  public void processSubscribe(Request request, ServerTransaction serverTransaction) {
    logger.debug("Processing SUBSCRIBE in progress ");
    try {

      MessageFactory messageFactory = imUA.getMessageFactory();
      HeaderFactory headerFactory = imUA.getHeaderFactory();
      AddressFactory addressFactory = imUA.getAddressFactory();
      Dialog dialog = serverTransaction.getDialog();

      // ********** Terminating subscriptions **********
      ExpiresHeader expiresHeader = (ExpiresHeader) request.getHeader(ExpiresHeader.NAME);
      if (expiresHeader != null && expiresHeader.getExpires() == 0) {
        if (dialog != null) {
          // Terminating an existing subscription
          Response response = messageFactory.createResponse(Response.OK, request);
          serverTransaction.sendResponse(response);
          IMNotifyProcessing imNotifyProcessing = imUA.getIMNotifyProcessing();
          imNotifyProcessing.sendNotify(response, null, dialog);
          return;
        } else {
          // Terminating an non existing subscription
          Response response =
              messageFactory.createResponse(Response.CALL_OR_TRANSACTION_DOES_NOT_EXIST, request);
          serverTransaction.sendResponse(response);
          return;
        }
      }

      // ********** Non-terminating subscriptions ************

      // send a 202 Accepted while waiting for authorization from user
      Response response = messageFactory.createResponse(Response.ACCEPTED, request);
      // Tag:
      ToHeader toHeader = (ToHeader) response.getHeader(ToHeader.NAME);
      if (toHeader.getTag() == null)
        toHeader.setTag(new Integer((int) (Math.random() * 10000)).toString());
      serverTransaction.sendResponse(response);
      logger.debug(response.toString());

      // We have to ask the user to authorize the guy to be in his buddy
      // list
      String presentityURL = IMUtilities.getKey(request, "From");
      SipProvider sipProvider = imUA.getSipProvider();
      InstantMessagingGUI imGUI = imUA.getInstantMessagingGUI();
      boolean authorization = imGUI.getAuthorizationForBuddy(presentityURL);
      if (authorization) {
        logger.debug(
            "DEBUG: SubscribeProcessing, processSubscribe(), " + " Response 202 Accepted sent.");

        // We have to create or update the subscriber!
        PresenceManager presenceManager = imUA.getPresenceManager();
        String subscriberURL = IMUtilities.getKey(request, "From");

        if (dialog != null) presenceManager.addSubscriber(subscriberURL, response, dialog);
        else {
          logger.debug(
              "ERROR, IMSubscribeProcessing, processSubscribe(), the"
                  + " dialog for the SUBSCRIBE we received is null!!! No subscriber added....");
          return;
        }

        // Let's see if this buddy is in our buddy list
        // if not let's ask to add him!
        BuddyList buddyList = imGUI.getBuddyList();
        ListenerInstantMessaging listenerIM = imGUI.getListenerInstantMessaging();
        if (!buddyList.hasBuddy(subscriberURL)) {
          // Let's ask:
          listenerIM.addContact(subscriberURL);
        }

        /** ********************** send NOTIFY ************************* */
        // We send a NOTIFY for any of our status but offline
        String localStatus = listenerIM.getLocalStatus();
        if (!localStatus.equals("offline")) {
          IMNotifyProcessing imNotifyProcessing = imUA.getIMNotifyProcessing();
          Subscriber subscriber = presenceManager.getSubscriber(subscriberURL);
          // Response okSent=subscriber.getOkSent();

          subscriberURL = subscriber.getSubscriberName();

          String contactAddress = imUA.getIMAddress() + ":" + imUA.getIMPort();

          String subStatus = listenerIM.getLocalStatus();
          String status = null;
          if (subStatus.equals("offline")) status = "closed";
          else status = "open";
          String xmlBody =
              imNotifyProcessing.xmlPidfParser.createXMLBody(
                  status, subStatus, subscriberURL, contactAddress);
          imNotifyProcessing.sendNotify(response, xmlBody, dialog);
        }
      } else {
        // User did not authorize subscription. Terminate it!
        logger.debug(
            "DEBUG, IMSubsribeProcessing, processSubscribe(), " + " Subscription declined!");
        logger.debug(
            "DEBUG, IMSubsribeProcessing, processSubscribe(), "
                + " Sending a Notify with Subscribe-state=terminated");

        IMNotifyProcessing imNotifyProcessing = imUA.getIMNotifyProcessing();
        if (dialog != null) {
          imNotifyProcessing.sendNotify(response, null, dialog);
          logger.debug(
              "DEBUG, IMSubsribeProcessing, processSubscribe(), "
                  + " Sending a Notify with Subscribe-state=terminated");
        } else {
          logger.debug(
              "ERROR, IMSubscribeProcessing, processSubscribe(), the"
                  + " dialog for the SUBSCRIBE we received is null!!! \n"
                  + "   No terminating Notify sent");
        }
        imNotifyProcessing.sendNotify(response, null, dialog);
      }
    } catch (Exception ex) {
      ex.printStackTrace();
    }
  }