blob: 7d36dded482f6d8b3252e6328cdfe35b0a6c78dd [file] [log] [blame]
/*
* Copyright (C) 2009, Google Inc.
* Copyright (C) 2008, Robin Rosenberg <robin.rosenberg@dewire.com>
* Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
* and other copyright owners as documented in the project's IP log.
*
* This program and the accompanying materials are made available
* under the terms of the Eclipse Distribution License v1.0 which
* accompanies this distribution, is reproduced below, and is
* available at http://www.eclipse.org/org/documents/edl-v10.php
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* - Neither the name of the Eclipse Foundation, Inc. nor the
* names of its contributors may be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.eclipse.jgit.console;
import java.io.Console;
import org.eclipse.jgit.transport.OpenSshConfig;
import org.eclipse.jgit.transport.SshConfigSessionFactory;
import org.eclipse.jgit.transport.SshSessionFactory;
import com.jcraft.jsch.Session;
import com.jcraft.jsch.UIKeyboardInteractive;
import com.jcraft.jsch.UserInfo;
/**
* Loads known hosts and private keys from <code>$HOME/.ssh</code>.
* <p>
* This is the default implementation used by JGit and provides most of the
* compatibility necessary to match OpenSSH, a popular implementation of SSH
* used by C Git.
* <p>
* If user interactivity is required by SSH (e.g. to obtain a password) the
* system console is used to display a prompt to the end-user.
*/
public class ConsoleSshSessionFactory extends SshConfigSessionFactory {
/** Install this session factory implementation into the JVM. */
public static void install() {
final ConsoleSshSessionFactory c = new ConsoleSshSessionFactory();
if (c.cons == null)
throw new NoClassDefFoundError("No System.console available");
SshSessionFactory.setInstance(c);
}
private final Console cons = System.console();
@Override
protected void configure(final OpenSshConfig.Host hc, final Session session) {
if (!hc.isBatchMode())
session.setUserInfo(new ConsoleUserInfo());
}
private class ConsoleUserInfo implements UserInfo, UIKeyboardInteractive {
private String passwd;
private String passphrase;
public void showMessage(final String msg) {
cons.printf("%s\n", msg);
cons.flush();
}
public boolean promptYesNo(final String msg) {
String r = cons.readLine("%s [y/n]? ", msg);
return "y".equalsIgnoreCase(r);
}
public boolean promptPassword(final String msg) {
passwd = null;
char[] p = cons.readPassword("%s: ", msg);
if (p != null) {
passwd = new String(p);
return true;
}
return false;
}
public boolean promptPassphrase(final String msg) {
passphrase = null;
char[] p = cons.readPassword("%s: ", msg);
if (p != null) {
passphrase = new String(p);
return true;
}
return false;
}
public String getPassword() {
return passwd;
}
public String getPassphrase() {
return passphrase;
}
public String[] promptKeyboardInteractive(final String destination,
final String name, final String instruction,
final String[] prompt, final boolean[] echo) {
cons.printf("%s: %s\n", destination, name);
cons.printf("%s\n", instruction);
final String[] response = new String[prompt.length];
for (int i = 0; i < prompt.length; i++) {
if (echo[i]) {
response[i] = cons.readLine("%s: ", prompt[i]);
} else {
final char[] p = cons.readPassword("%s: ", prompt[i]);
response[i] = p != null ? new String(p) : "";
}
}
return response;
}
}
}