/*
* This file is part of "JTA - Telnet/SSH for the JAVA(tm) platform".
*
* (c) Matthias L. Jugel, Marcus Meißner 1996-2005. All Rights Reserved.
*
* Please visit http://javatelnet.org/ for updates and contact.
*
* --LICENSE NOTICE--
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
* --LICENSE NOTICE--
*
*/
package de.mud.jta;
import de.mud.jta.event.FocusStatusListener;
import de.mud.jta.event.OnlineStatusListener;
import de.mud.jta.event.ReturnFocusRequest;
import de.mud.jta.event.SocketRequest;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.KeyStroke;
import java.awt.PrintJob;
import java.awt.datatransfer.Clipboard;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.FileInputStream;
import java.io.IOException;
import java.net.URL;
import java.util.Iterator;
import java.util.Map;
import java.util.Properties;
/**
* <B>JTA - Telnet/SSH for the JAVA(tm) platform</B><P>
* This is the implementation of whole set of applications. It's modular
* structure allows to configure the software to act either as a sophisticated
* terminal emulation and/or, adding the network backend, as telnet
* implementation. Additional modules provide features like scripting or an
* improved graphical user interface.<P>
* This software is written entirely in Java<SUP>tm</SUP>.<P>
* This is the main program for the command line telnet. It initializes the
* system and adds all needed components, such as the telnet backend and
* the terminal front end. In contrast to applet functionality it parses
* command line arguments used for configuring the software. Additionally
* this application is not restricted in the sense of Java<SUP>tmp</SUP>
* security.
* <P>
* <B>Maintainer:</B> Matthias L. Jugel
*
* @version $Id: Main.java 499 2005-09-29 08:24:54Z leo $
* @author Matthias L. Jugel, Marcus Meissner
*/
public class Main {
private final static int debug = 0;
private final static boolean personalJava = false;
/** holds the last focussed plugin */
private static Plugin focussedPlugin;
/** holds the system clipboard or our own */
private static Clipboard clipboard;
private static String host, port;
public static void main(String args[]) {
final Properties options = new Properties();
try {
options.load(Main.class.getResourceAsStream("/de/mud/jta/default.conf"));
} catch (IOException e) {
System.err.println("jta: cannot load default.conf");
}
String error = parseOptions(options, args);
if (error != null) {
System.err.println(error);
System.err.println("usage: de.mud.jta.Main [-plugins pluginlist] "
+ "[-addplugin plugin] "
+ "[-config url_or_file] "
+ "[-term id] [host [port]]");
System.exit(0);
}
String cfg = options.getProperty("Main.config");
if (cfg != null)
try {
options.load(new URL(cfg).openStream());
} catch (IOException e) {
try {
options.load(new FileInputStream(cfg));
} catch (Exception fe) {
System.err.println("jta: cannot load " + cfg);
}
}
host = options.getProperty("Socket.host");
port = options.getProperty("Socket.port");
final JFrame frame = new JFrame("jta: " + host + (port.equals("23")?"":" " + port));
// set up the clipboard
try {
clipboard = frame.getToolkit().getSystemClipboard();
} catch (Exception e) {
System.err.println("jta: system clipboard access denied");
System.err.println("jta: copy & paste only within the JTA");
clipboard = new Clipboard("de.mud.jta.Main");
}
// configure the application and load all plugins
final Common setup = new Common(options);
if (port == null || port.length() == 0) {
if (setup.getPlugins().containsKey("SSH")) {
port = "22";
} else {
port = "23";
}
}
setup.registerPluginListener(new OnlineStatusListener() {
public void online() {
frame.setTitle("jta: " + host + (port.equals("23")?"":" " + port));
}
public void offline() {
frame.setTitle("jta: offline");
}
});
// register a focus status listener, so we know when a plugin got focus
setup.registerPluginListener(new FocusStatusListener() {
public void pluginGainedFocus(Plugin plugin) {
if (Main.debug > 0)
System.err.println("Main: " + plugin + " got focus");
focussedPlugin = plugin;
}
public void pluginLostFocus(Plugin plugin) {
// we ignore the lost focus
if (Main.debug > 0)
System.err.println("Main: " + plugin + " lost focus");
}
});
Map componentList = setup.getComponents();
Iterator names = componentList.keySet().iterator();
while (names.hasNext()) {
String name = (String) names.next();
JComponent c = (JComponent) componentList.get(name);
if (options.getProperty("layout." + name) == null) {
System.err.println("jta: no layout property set for '" + name + "'");
frame.add("South", c);
} else
frame.getContentPane().add(options.getProperty("layout." + name), c);
}
if (!personalJava) {
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent evt) {
setup.broadcast(new SocketRequest());
frame.setVisible(false);
frame.dispose();
System.exit(0);
}
});
// add a menu bar
JMenuBar mb = new JMenuBar();
JMenu file = new JMenu("File");
file.setMnemonic(KeyEvent.VK_F);
JMenuItem tmp;
file.add(tmp = new JMenuItem("Connect"));
tmp.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C, KeyEvent.SHIFT_MASK | KeyEvent.CTRL_MASK));
tmp.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
String destination =
JOptionPane.showInputDialog(frame,
new JLabel("Enter your destination host (host[:port])"),
"Connect", JOptionPane.QUESTION_MESSAGE
);
if (destination != null) {
int sep = 0;
if ((sep = destination.indexOf(' ')) > 0 || (sep = destination.indexOf(':')) > 0) {
host = destination.substring(0, sep);
port = destination.substring(sep + 1);
} else {
host = destination;
}
setup.broadcast(new SocketRequest());
setup.broadcast(new SocketRequest(host, Integer.parseInt(port)));
}
}
});
file.add(tmp = new JMenuItem("Disconnect"));
tmp.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
setup.broadcast(new SocketRequest());
}
});
file.addSeparator();
if (setup.getComponents().get("Terminal") != null) {
file.add(tmp = new JMenuItem("Print"));
tmp.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_P, KeyEvent.CTRL_MASK));
tmp.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
PrintJob printJob =
frame.getToolkit().getPrintJob(frame, "JTA Terminal", null);
// return if the user clicked cancel
if (printJob == null) return;
((JComponent) setup.getComponents().get("Terminal"))
.print(printJob.getGraphics());
printJob.end();
}
});
file.addSeparator();
}
file.add(tmp = new JMenuItem("Exit"));
tmp.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
frame.dispose();
System.exit(0);
}
});
mb.add(file);
JMenu edit = new JMenu("Edit");
edit.add(tmp = new JMenuItem("Copy"));
tmp.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C, KeyEvent.CTRL_MASK));
tmp.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
if (focussedPlugin instanceof VisualTransferPlugin)
((VisualTransferPlugin) focussedPlugin).copy(clipboard);
}
});
edit.add(tmp = new JMenuItem("Paste"));
tmp.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_V, KeyEvent.CTRL_MASK));
tmp.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent evt) {
if (focussedPlugin instanceof VisualTransferPlugin)
((VisualTransferPlugin) focussedPlugin).paste(clipboard);
}
});
mb.add(edit);
Map menuList = setup.getMenus();
names = menuList.keySet().iterator();
while (names.hasNext()) {
String name = (String) names.next();
mb.add((JMenu) menuList.get(name));
}
JMenu help = new JMenu("Help");
help.setMnemonic(KeyEvent.VK_HELP);
help.add(tmp = new JMenuItem("General"));
tmp.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
Help.show(frame, options.getProperty("Help.url"));
}
});
mb.add(help);
frame.setJMenuBar(mb);
} // !personalJava
frame.pack();
if ((new Boolean(options.getProperty("Applet.detach.fullscreen"))
.booleanValue()))
frame.setSize(frame.getToolkit().getScreenSize());
else
frame.pack();
frame.setVisible(true);
if(debug > 0)
System.err.println("host: '"+host+"', "+host.length());
if (host != null && host.length() > 0) {
setup.broadcast(new SocketRequest(host, Integer.parseInt(port)));
}
/* make sure the focus goes somewhere to start off with */
setup.broadcast(new ReturnFocusRequest());
}
/**
* Parse the command line argumens and override any standard options
* with the new values if applicable.
* <P><SMALL>
* This method did not work with jdk 1.1.x as the setProperty()
* method is not available. So it uses now the put() method from
* Hashtable instead.
* </SMALL>
* @param options the original options
* @param args the command line parameters
* @return a possible error message if problems occur
*/
private static String parseOptions(Properties options, String args[]) {
boolean host = false, port = false;
for (int n = 0; n < args.length; n++) {
if (args[n].equals("-config"))
if (!args[n + 1].startsWith("-"))
options.put("Main.config", args[++n]);
else
return "missing parameter for -config";
else if (args[n].equals("-plugins"))
if (!args[n + 1].startsWith("-"))
options.put("plugins", args[++n]);
else
return "missing parameter for -plugins";
else if (args[n].equals("-addplugin"))
if (!args[n + 1].startsWith("-"))
options.put("plugins", args[++n] + "," + options.get("plugins"));
else
return "missing parameter for -addplugin";
else if (args[n].equals("-term"))
if (!args[n + 1].startsWith("-"))
options.put("Terminal.id", args[++n]);
else
return "missing parameter for -term";
else if (!host) {
options.put("Socket.host", args[n]);
host = true;
} else if (host && !port) {
options.put("Socket.port", args[n]);
port = true;
} else
return "unknown parameter '" + args[n] + "'";
}
return null;
}
}