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/* -*-mode:java; c-basic-offset:2; indent-tabs-mode:nil -*- */
/**
* This program demonsrates how to use OpenSSHConfig class.
* $ CLASSPATH=.:../build javac OpenSSHConfig.java
* $ CLASSPATH=.:../build java OpenSSHConfig
* You will be asked username, hostname and passwd.
* If everything works fine, you will get the shell prompt. Output may
* be ugly because of lacks of terminal-emulation, but you can issue commands.
*
*/
import com.jcraft.jsch.*;
import java.awt.*;
import javax.swing.*;
public class OpenSSHConfig {
public static void main(String[] arg){
try{
JSch jsch=new JSch();
String host=null;
if(arg.length>0){
host=arg[0];
}
else{
host=JOptionPane.showInputDialog("Enter username@hostname",
System.getProperty("user.name")+
"@localhost");
}
String user=host.substring(0, host.indexOf('@'));
host=host.substring(host.indexOf('@')+1);
String config =
"Port 22\n"+
"\n"+
"Host foo\n"+
" User "+user+"\n"+
" Hostname "+host+"\n"+
"Host *\n"+
" ConnectTime 30000\n"+
" PreferredAuthentications keyboard-interactive,password,publickey\n"+
" #ForwardAgent yes\n"+
" #StrictHostKeyChecking no\n"+
" #IdentityFile ~/.ssh/id_rsa\n"+
" #UserKnownHostsFile ~/.ssh/known_hosts";
System.out.println("Generated configurations:");
System.out.println(config);
ConfigRepository configRepository =
com.jcraft.jsch.OpenSSHConfig.parse(config);
//com.jcraft.jsch.OpenSSHConfig.parseFile("~/.ssh/config");
jsch.setConfigRepository(configRepository);
// "foo" is from "Host foo" in the above config.
Session session=jsch.getSession("foo");
String passwd = JOptionPane.showInputDialog("Enter password");
session.setPassword(passwd);
UserInfo ui = new MyUserInfo(){
public void showMessage(String message){
JOptionPane.showMessageDialog(null, message);
}
public boolean promptYesNo(String message){
Object[] options={ "yes", "no" };
int foo=JOptionPane.showOptionDialog(null,
message,
"Warning",
JOptionPane.DEFAULT_OPTION,
JOptionPane.WARNING_MESSAGE,
null, options, options[0]);
return foo==0;
}
// If password is not given before the invocation of Session#connect(),
// implement also following methods,
// * UserInfo#getPassword(),
// * UserInfo#promptPassword(String message) and
// * UIKeyboardInteractive#promptKeyboardInteractive()
};
session.setUserInfo(ui);
session.connect(); // making a connection with timeout as defined above.
Channel channel=session.openChannel("shell");
channel.setInputStream(System.in);
/*
// a hack for MS-DOS prompt on Windows.
channel.setInputStream(new FilterInputStream(System.in){
public int read(byte[] b, int off, int len)throws IOException{
return in.read(b, off, (len>1024?1024:len));
}
});
*/
channel.setOutputStream(System.out);
/*
// Choose the pty-type "vt102".
((ChannelShell)channel).setPtyType("vt102");
*/
/*
// Set environment variable "LANG" as "ja_JP.eucJP".
((ChannelShell)channel).setEnv("LANG", "ja_JP.eucJP");
*/
//channel.connect();
channel.connect(3*1000);
}
catch(Exception e){
System.out.println(e);
}
}
public static abstract class MyUserInfo
implements UserInfo, UIKeyboardInteractive{
public String getPassword(){ return null; }
public boolean promptYesNo(String str){ return false; }
public String getPassphrase(){ return null; }
public boolean promptPassphrase(String message){ return false; }
public boolean promptPassword(String message){ return false; }
public void showMessage(String message){ }
public String[] promptKeyboardInteractive(String destination,
String name,
String instruction,
String[] prompt,
boolean[] echo){
return null;
}
}
}
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