// given a prompt?
String prompt = getRequestingPrompt();
if (prompt == null)
prompt = "Please login...";
// protocol
String protocol = getRequestingProtocol();
if (protocol == null)
protocol = "Unknown protocol";
// get the host
String host = null;
InetAddress inet = getRequestingSite();
if (inet != null)
host = inet.getHostName();
if (host == null)
host = "Unknown host";
// port
String port = "";
int portnum = getRequestingPort();
if (portnum != -1)
port = ", port " + portnum + " ";
// Build the info string
String info = "Connecting to " + protocol + " mail service on host " +
host + port;
//JPanel d = new JPanel();
// XXX - for some reason using a JPanel here causes JOptionPane
// to display incorrectly, so we workaround the problem using
// an anonymous JComponent.
JComponent d = new JComponent() { };
GridBagLayout gb = new GridBagLayout();
GridBagConstraints c = new GridBagConstraints();
d.setLayout(gb);
c.insets = new Insets(2, 2, 2, 2);
c.anchor = GridBagConstraints.WEST;
c.gridwidth = GridBagConstraints.REMAINDER;
c.weightx = 0.0;
d.add(constrain(new JLabel(info), gb, c));
d.add(constrain(new JLabel(prompt), gb, c));
c.gridwidth = 1;
c.anchor = GridBagConstraints.EAST;
c.fill = GridBagConstraints.NONE;
c.weightx = 0.0;
d.add(constrain(new JLabel("Username:"), gb, c));
c.anchor = GridBagConstraints.EAST;
c.fill = GridBagConstraints.HORIZONTAL;
c.gridwidth = GridBagConstraints.REMAINDER;
c.weightx = 1.0;
String user = getDefaultUserName();
JTextField username = new JTextField(user, 20);
d.add(constrain(username, gb, c));
c.gridwidth = 1;
c.fill = GridBagConstraints.NONE;
c.anchor = GridBagConstraints.EAST;
c.weightx = 0.0;
d.add(constrain(new JLabel("Password:"), gb, c));
c.anchor = GridBagConstraints.EAST;
c.fill = GridBagConstraints.HORIZONTAL;
c.gridwidth = GridBagConstraints.REMAINDER;
c.weightx = 1.0;
JPasswordField password = new JPasswordField("", 20);
d.add(constrain(password, gb, c));
// XXX - following doesn't work
if (user != null && user.length() > 0)
password.requestFocus();
else
username.requestFocus();
int result = JOptionPane.showConfirmDialog(frame, d, "Login",
JOptionPane.OK_CANCEL_OPTION, JOptionPane.QUESTION_MESSAGE);
if (result == JOptionPane.OK_OPTION)
return new PasswordAuthentication(username.getText(),
password.getText());
else
return null;
