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/* -*-mode:java; c-basic-offset:2; indent-tabs-mode:nil -*- */
import com.jcraft.jsch.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class StreamForwarding{
public static void main(String[] arg){
int port;
try{
JSch jsch=new JSch();
String host=JOptionPane.showInputDialog("Enter username@hostname",
System.getProperty("user.name")+
"@localhost");
String user=host.substring(0, host.indexOf('@'));
host=host.substring(host.indexOf('@')+1);
Session session=jsch.getSession(user, host, 22);
// username and password will be given via UserInfo interface.
UserInfo ui=new MyUserInfo();
session.setUserInfo(ui);
session.connect();
String foo=JOptionPane.showInputDialog("Enter host and port",
"host:port");
host=foo.substring(0, foo.indexOf(':'));
port=Integer.parseInt(foo.substring(foo.indexOf(':')+1));
System.out.println("System.{in,out} will be forwarded to "+
host+":"+port+".");
Channel channel=session.openChannel("direct-tcpip");
((ChannelDirectTCPIP)channel).setInputStream(System.in);
((ChannelDirectTCPIP)channel).setOutputStream(System.out);
((ChannelDirectTCPIP)channel).setHost(host);
((ChannelDirectTCPIP)channel).setPort(port);
channel.connect();
}
catch(Exception e){
System.out.println(e);
}
}
public static class MyUserInfo implements UserInfo{
public String getPassword(){ return passwd; }
public boolean promptYesNo(String str){
Object[] options={ "yes", "no" };
int foo=JOptionPane.showOptionDialog(null,
str,
"Warning",
JOptionPane.DEFAULT_OPTION,
JOptionPane.WARNING_MESSAGE,
null, options, options[0]);
return foo==0;
}
String passwd;
JTextField passwordField=(JTextField)new JPasswordField(20);
public String getPassphrase(){ return null; }
public boolean promptPassphrase(String message){ return true; }
public boolean promptPassword(String message){
Object[] ob={passwordField};
int result=
JOptionPane.showConfirmDialog(null, ob, message,
JOptionPane.OK_CANCEL_OPTION);
if(result==JOptionPane.OK_OPTION){
passwd=passwordField.getText();
return true;
}
else{ return false; }
}
public void showMessage(String message){
JOptionPane.showMessageDialog(null, message);
}
}
}
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