/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
/**
* User: AmilaJ (amilaj@apache.org)
* Date: 8/6/13
* Time: 1:08 PM
*/
/* -*-mode:java; c-basic-offset:2; indent-tabs-mode:nil -*- */
/**
* This program will demonstrate remote exec.
* $ CLASSPATH=.:../build javac Exec.java
* $ CLASSPATH=.:../build java Exec
* You will be asked username, hostname, displayname, passwd and command.
* If everything works fine, given command will be invoked
* on the remote side and outputs will be printed out.
*
*/
import com.jcraft.jsch.*;
import org.apache.airavata.gsi.ssh.jsch.ExtendedJSch;
import javax.swing.*;
import java.awt.*;
import java.io.InputStream;
/**
* A main class that demonstrates GSI-SSH execution.
*/
public class SSHDemo {
static {
JSch.setConfig("gssapi-with-mic.x509", "org.apache.airavata.gsi.ssh.GSSContextX509");
JSch.setConfig("userauth.gssapi-with-mic", "com.jcraft.jsch.UserAuthGSSAPIWithMICGSSCredentials");
System.setProperty("X509_CERT_DIR",
"/Users/thejaka/development/apache/airavata/sandbox/grid-tools/certificates");
}
public static void main(String[] arg) {
try {
JSch jsch = new ExtendedJSch();
String host;
int port = 22;
String inputString = JOptionPane.showInputDialog("Enter username@hostname:port",
"ogce@trestles.sdsc.edu");
String user = inputString.substring(0, inputString.indexOf('@'));
if (inputString.contains(":")) {
host = inputString.substring(inputString.indexOf('@') + 1, inputString.indexOf(':'));
String strPort = inputString.substring(inputString.indexOf(':') + 1);
port = Integer.parseInt(strPort);
} else {
host = inputString.substring(inputString.indexOf('@') + 1);
}
Session session = jsch.getSession(user, host, port);
HostKey hostKey = session.getHostKey();
java.util.Properties config = new java.util.Properties();
config.put("StrictHostKeyChecking", "no");
session.setConfig(config);
session.connect();
String command = JOptionPane.showInputDialog("Enter command",
"echo \"Hello World\"");
Channel channel = session.openChannel("exec");
((ChannelExec) channel).setCommand(command);
// X Forwarding
// channel.setXForwarding(true);
//channel.setInputStream(System.in);
channel.setInputStream(null);
//channel.setOutputStream(System.out);
//FileOutputStream fos=new FileOutputStream("/tmp/stderr");
//((ChannelExec)channel).setErrStream(fos);
((ChannelExec) channel).setErrStream(System.err);
InputStream in = channel.getInputStream();
channel.connect();
byte[] tmp = new byte[1024];
while (true) {
while (in.available() > 0) {
int i = in.read(tmp, 0, 1024);
if (i < 0) break;
System.out.print(new String(tmp, 0, i));
}
if (channel.isClosed()) {
System.out.println("exit-status: " + channel.getExitStatus());
break;
}
try {
Thread.sleep(1000);
} catch (Exception ignored) {
}
}
channel.disconnect();
session.disconnect();
} catch (Exception e) {
e.printStackTrace();
System.out.println(e);
}
}
public static class MyUserInfo implements UserInfo, UIKeyboardInteractive {
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);
}
final GridBagConstraints gbc =
new GridBagConstraints(0, 0, 1, 1, 1, 1,
GridBagConstraints.NORTHWEST,
GridBagConstraints.NONE,
new Insets(0, 0, 0, 0), 0, 0);
private Container panel;
public String[] promptKeyboardInteractive(String destination,
String name,
String instruction,
String[] prompt,
boolean[] echo) {
panel = new JPanel();
panel.setLayout(new GridBagLayout());
gbc.weightx = 1.0;
gbc.gridwidth = GridBagConstraints.REMAINDER;
gbc.gridx = 0;
panel.add(new JLabel(instruction), gbc);
gbc.gridy++;
gbc.gridwidth = GridBagConstraints.RELATIVE;
JTextField[] texts = new JTextField[prompt.length];
for (int i = 0; i < prompt.length; i++) {
gbc.fill = GridBagConstraints.NONE;
gbc.gridx = 0;
gbc.weightx = 1;
panel.add(new JLabel(prompt[i]), gbc);
gbc.gridx = 1;
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.weighty = 1;
if (echo[i]) {
texts[i] = new JTextField(20);
} else {
texts[i] = new JPasswordField(20);
}
panel.add(texts[i], gbc);
gbc.gridy++;
}
if (JOptionPane.showConfirmDialog(null, panel,
destination + ": " + name,
JOptionPane.OK_CANCEL_OPTION,
JOptionPane.QUESTION_MESSAGE)
== JOptionPane.OK_OPTION) {
String[] response = new String[prompt.length];
for (int i = 0; i < prompt.length; i++) {
response[i] = texts[i].getText();
}
return response;
} else {
return null; // cancel
}
}
}
}