PacketUserauthBanner.java revision 48ded2421114c4c87ef3f8005c9f793a5d077cbd 
1/*
2 * Copyright (c) 2006-2011 Christian Plattner. All rights reserved.
3 * Please refer to the LICENSE.txt for licensing details.
4 */
5package ch.ethz.ssh2.packets;
6
7import java.io.IOException;
8
9/**
10 * PacketUserauthBanner.
11 *
12 * @author Christian Plattner
13 * @version 2.50, 03/15/10
14 */
15public class PacketUserauthBanner
16{
17	byte[] payload;
18
19	String message;
20	String language;
21
22	public PacketUserauthBanner(String message, String language)
23	{
24		this.message = message;
25		this.language = language;
26	}
27
28	public String getBanner()
29	{
30		return message;
31	}
32
33	public PacketUserauthBanner(byte payload[], int off, int len) throws IOException
34	{
35		this.payload = new byte[len];
36		System.arraycopy(payload, off, this.payload, 0, len);
37
38		TypesReader tr = new TypesReader(payload, off, len);
39
40		int packet_type = tr.readByte();
41
42		if (packet_type != Packets.SSH_MSG_USERAUTH_BANNER)
43			throw new IOException("This is not a SSH_MSG_USERAUTH_BANNER! (" + packet_type + ")");
44
45		message = tr.readString("UTF-8");
46		language = tr.readString();
47
48		if (tr.remain() != 0)
49			throw new IOException("Padding in SSH_MSG_USERAUTH_REQUEST packet!");
50	}
51
52	public byte[] getPayload()
53	{
54		if (payload == null)
55		{
56			TypesWriter tw = new TypesWriter();
57			tw.writeByte(Packets.SSH_MSG_USERAUTH_BANNER);
58			tw.writeString(message);
59			tw.writeString(language);
60			payload = tw.getBytes();
61		}
62		return payload;
63	}
64}
65