package net.suberic.pooka.gui;
import net.suberic.pooka.Pooka;
import net.suberic.util.FileVariableBundle;
import net.suberic.util.VariableBundle;
import javax.swing.*;
import java.awt.*;
import java.net.*;
import java.io.IOException;
import java.io.InputStream;
/**
* Gives the option of loading configuration settings from an http file.
*/
public class LoadHttpConfigPooka {
URL mUrl;
JFrame mFrame;
/**
* Starts the dialog.
*/
public void start() {
Runnable runMe = new Runnable() {
public void run() {
mFrame = new JFrame();
java.net.Authenticator.setDefault(new HttpAuthenticator(mFrame));
mFrame.setVisible(true);
showChoices();
}
};
if (SwingUtilities.isEventDispatchThread())
runMe.run();
else {
try {
SwingUtilities.invokeAndWait(runMe);
} catch (Exception ie) {
}
}
}
/**
* Shows the choices.
*/
public void showChoices() {
String urlString = JOptionPane.showInputDialog("Choose a remote file.");
if (urlString == null)
return;
try {
URL configUrl = new URL(urlString);
InputStream is = configUrl.openStream();
VariableBundle newBundle = new FileVariableBundle(is, Pooka.getResources());
Pooka.setResources(newBundle);
} catch (MalformedURLException mue) {
JOptionPane.showMessageDialog(mFrame, "Malformed URL.");
showChoices();
} catch (java.io.IOException ioe) {
JOptionPane.showMessageDialog(mFrame, "Could not connect to URL: " + ioe.toString());
showChoices();
}
}
public class HttpAuthenticator extends Authenticator {
Frame frame;
String username;
String password;
public HttpAuthenticator(Frame f) {
this.frame = f;
}
protected PasswordAuthentication getPasswordAuthentication() {
// given a prompt?
String prompt = getRequestingPrompt();
if (prompt == null) {
prompt = "Enter Username and Password...";
}
// 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 + " resource 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 = "";
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.requestFocusInWindow();
else
username.requestFocusInWindow();
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.getPassword());
else
return null;
}
private Component constrain(Component cmp,
GridBagLayout gb, GridBagConstraints c) {
gb.setConstraints(cmp, c);
return (cmp);
}
}
}