connectbot/sshlib

package com.trilead.ssh2.packets;

import java.io.UnsupportedEncodingException;

/**
 * PacketUserauthRequestInteractive.
 *
 * @author Christian Plattner, plattner@trilead.com
 * @version $Id: PacketUserauthRequestInteractive.java,v 1.1 2007/10/15 12:49:55 cplattne Exp $
 */
public class PacketUserauthRequestInteractive
{
    byte[] payload;

    String userName;
    String serviceName;
    String[] submethods;

    public PacketUserauthRequestInteractive(String serviceName, String user, String[] submethods)
    {
        this.serviceName = serviceName;
        this.userName = user;
        this.submethods = submethods;
    }

    public byte[] getPayload() throws UnsupportedEncodingException {
        if (payload == null)
        {
            TypesWriter tw = new TypesWriter();
            tw.writeByte(Packets.SSH_MSG_USERAUTH_REQUEST);
            tw.writeString(userName, "UTF-8");
            tw.writeString(serviceName);
            tw.writeString("keyboard-interactive");
            tw.writeString(""); // draft-ietf-secsh-newmodes-04.txt says that
            // the language tag should be empty.
            tw.writeNameList(submethods);

            payload = tw.getBytes();
        }
        return payload;
    }
}