Esempio n. 1
0
 // Close socket and IO streams, change appearance/functionality of some components
 private void closeAll() throws IOException {
   displayArea.append("\nConnection closing");
   output.close();
   input.close();
   connection.close();
   // We are no longer connected
   connection = null;
   // Change components
   serverField.setEditable(true);
   connectButton.setLabel("Connect to server above");
   enterField.setEnabled(false);
 }
  public babylonServerWindow(babylonServer parent, String Name) {
    super(Name);
    server = parent;

    myLayout = new GridBagLayout();
    setLayout(myLayout);

    p = new Panel();
    p.setLayout(myLayout);

    listening = new Label(server.strings.get(thisClass, "listenport") + " " + server.port);
    p.add(
        listening,
        new babylonConstraints(
            0,
            0,
            1,
            1,
            0.0,
            0.0,
            GridBagConstraints.NORTHWEST,
            GridBagConstraints.NONE,
            new Insets(0, 0, 0, 0),
            0,
            0));

    logChat = new Checkbox(server.strings.get(thisClass, "logchats"), server.logChats);
    logChat.addItemListener(this);
    p.add(
        logChat,
        new babylonConstraints(
            1,
            0,
            1,
            1,
            1.0,
            1.0,
            GridBagConstraints.NORTHWEST,
            GridBagConstraints.NONE,
            new Insets(0, 0, 0, 0),
            0,
            0));

    userList = new List(4, false);
    userList.addItemListener(this);
    p.add(
        userList,
        new babylonConstraints(
            0,
            1,
            1,
            5,
            1.0,
            1.0,
            GridBagConstraints.NORTHWEST,
            GridBagConstraints.BOTH,
            new Insets(0, 0, 5, 0),
            0,
            0));

    userAdmin = new Button(server.strings.get(thisClass, "usermanagement"));
    userAdmin.addActionListener(this);
    p.add(
        userAdmin,
        new babylonConstraints(
            1,
            1,
            1,
            1,
            1.0,
            1.0,
            GridBagConstraints.NORTHWEST,
            GridBagConstraints.HORIZONTAL,
            new Insets(0, 0, 0, 0),
            0,
            0));

    console = new Button(server.strings.get(thisClass, "adminclient"));
    console.addActionListener(this);
    p.add(
        console,
        new babylonConstraints(
            1,
            2,
            1,
            1,
            1.0,
            1.0,
            GridBagConstraints.NORTHWEST,
            GridBagConstraints.HORIZONTAL,
            new Insets(0, 0, 0, 0),
            0,
            0));

    disconnect = new Button(server.strings.get(thisClass, "disconnectuser"));
    disconnect.setEnabled(false);
    disconnect.addActionListener(this);
    p.add(
        disconnect,
        new babylonConstraints(
            1,
            3,
            1,
            1,
            1.0,
            1.0,
            GridBagConstraints.NORTHWEST,
            GridBagConstraints.HORIZONTAL,
            new Insets(0, 0, 0, 0),
            0,
            0));

    disconnectAll = new Button(server.strings.get(thisClass, "disconnectall"));
    disconnectAll.setEnabled(false);
    disconnectAll.addActionListener(this);
    p.add(
        disconnectAll,
        new babylonConstraints(
            1,
            4,
            1,
            1,
            1.0,
            1.0,
            GridBagConstraints.NORTHWEST,
            GridBagConstraints.HORIZONTAL,
            new Insets(0, 0, 0, 0),
            0,
            0));

    shutdown = new Button(server.strings.get(thisClass, "shutdown"));
    shutdown.addActionListener(this);
    p.add(
        shutdown,
        new babylonConstraints(
            1,
            5,
            1,
            1,
            1.0,
            1.0,
            GridBagConstraints.NORTHWEST,
            GridBagConstraints.HORIZONTAL,
            new Insets(0, 0, 0, 0),
            0,
            0));

    stats =
        new TextField(
            server.strings.get(thisClass, "connectionscurrent")
                + " 0  "
                + server.strings.get(thisClass, "connectionspeak")
                + " 0  "
                + server.strings.get(thisClass, "connectionstotal")
                + " 0",
            40);
    stats.setEditable(false);
    p.add(
        stats,
        new babylonConstraints(
            0,
            7,
            2,
            1,
            1.0,
            1.0,
            GridBagConstraints.NORTHWEST,
            GridBagConstraints.BOTH,
            new Insets(0, 0, 0, 0),
            0,
            0));

    logWindow =
        new TextArea(
            server.strings.get(thisClass, "activitylog") + "\n",
            10,
            40,
            TextArea.SCROLLBARS_VERTICAL_ONLY);
    logWindow.setEditable(false);
    p.add(
        logWindow,
        new babylonConstraints(
            0,
            8,
            2,
            1,
            1.0,
            1.0,
            GridBagConstraints.NORTHWEST,
            GridBagConstraints.BOTH,
            new Insets(0, 0, 5, 0),
            0,
            0));

    canvas = new babylonPictureCanvas(this);
    p.add(
        canvas,
        new babylonConstraints(
            0,
            9,
            2,
            1,
            1.0,
            1.0,
            GridBagConstraints.NORTHWEST,
            GridBagConstraints.BOTH,
            new Insets(0, 0, 0, 0),
            0,
            0));

    add(
        p,
        new babylonConstraints(
            0,
            0,
            1,
            1,
            1.0,
            1.0,
            GridBagConstraints.NORTHWEST,
            GridBagConstraints.BOTH,
            new Insets(5, 5, 5, 5),
            0,
            0));

    try {
      URL url = new URL("file", "localhost", "babylonPic.jpg");
      Image image = getToolkit().getImage(url);

      canvas.setimage(image);
    } catch (Exception e) {
      System.out.println(e);
    }

    try {
      URL iconUrl = new URL("file", "localhost", "babylonIcon.jpg");
      ImageIcon icon = new ImageIcon(iconUrl);
      this.setIconImage(icon.getImage());
    } catch (Exception e) {
      /* Not important */
    }

    addWindowListener(this);

    setSize(600, 600);
    pack();
  }
Esempio n. 3
0
  public void actionPerformed(ActionEvent e) {
    Object source = e.getSource();
    // Client pressed enter in the message entry field-send it
    if (source == enterField) {
      // Get the message
      message = e.getActionCommand();
      try {
        // Encipher the message
        if (message.length() > plaintextBlockSize)
          message = message.substring(0, plaintextBlockSize);
        byte[] ciphertext =
            Ciphers.RSAEncipherWSalt(message.getBytes(), BigIntegerMath.THREE, recipModulus, sr);
        // Send to the server
        output.write(ciphertext);
        output.flush();
        // Display same message in client output area
        displayArea.append("\n" + message);
        enterField.setText("");
      } catch (IOException ioe) {
        displayArea.append("\nError writing message");
      }
    } else if (source == connectButton) {
      if (connection != null) { // Already connected-button press now means disconnect
        try {
          // Send final message of 0
          byte[] lastMsg = new byte[1];
          lastMsg[0] = 0;
          output.write(Ciphers.RSAEncipherWSalt(lastMsg, BigIntegerMath.THREE, recipModulus, sr));
          output.flush();
          // close connection and IO streams, change some components
          closeAll();
        } catch (IOException ioe) {
          displayArea.append("\nError closing connection");
        }
      } else { // Not connected-connect
        // Get name of server to connect to
        chatServer = serverField.getText();
        displayArea.setText("Attempting connection to " + chatServer);
        try {
          // Set up the socket
          connection = new Socket(chatServer, 55555);

          displayArea.append("\nConnected to: " + connection.getInetAddress().getHostName());

          // Set up the IO streams
          output = new DataOutputStream(connection.getOutputStream());
          output.flush();
          input = new DataInputStream(connection.getInputStream());

          // Exchange public keys with the server-send yours, get theirs
          exchangeKeys();

          // Change appearance/functionality of some components
          serverField.setEditable(false);
          connectButton.setLabel("Disconnect from server above");
          enterField.setEnabled(true);
          // Set up a thread to listen for the connection
          listener =
              new Thread(
                  new Runnable() {
                    public void run() {
                      go();
                    }
                  });
          listener.start();
        } catch (IOException ioe) {
          displayArea.append("\nError connecting to " + chatServer);
        }
      }
    }
  }