Example #1
0
 /**
  * The ActionListener implementation
  *
  * @param event the event.
  */
 public void actionPerformed(ActionEvent event) {
   String searchText = textField.getText().trim();
   if (searchText.equals("") && !saveAs.isSelected() && (fileLength > 10000000)) {
     textPane.setText("Blank search text is not allowed for large IdTables.");
   } else {
     File outputFile = null;
     if (saveAs.isSelected()) {
       outputFile = chooser.getSelectedFile();
       if (outputFile != null) {
         String name = outputFile.getName();
         int k = name.lastIndexOf(".");
         if (k != -1) name = name.substring(0, k);
         name += ".txt";
         File parent = outputFile.getAbsoluteFile().getParentFile();
         outputFile = new File(parent, name);
         chooser.setSelectedFile(outputFile);
       }
       if (chooser.showSaveDialog(this) != JFileChooser.APPROVE_OPTION) System.exit(0);
       outputFile = chooser.getSelectedFile();
     }
     textPane.setText("");
     Searcher searcher = new Searcher(searchText, event.getSource().equals(searchPHI), outputFile);
     searcher.start();
   }
 }
Example #2
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);
        }
      }
    }
  }