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1 /*
2  * Copyright (c) 2006-2011 Christian Plattner. All rights reserved.
3  * Please refer to the LICENSE.txt for licensing details.
4  */
5 package ch.ethz.ssh2.packets;
6 
7 import java.io.IOException;
8 
9 /**
10  * PacketUserauthRequestPassword.
11  *
12  * @author Christian Plattner
13  * @version 2.50, 03/15/10
14  */
15 public class PacketUserauthRequestNone
16 {
17 	byte[] payload;
18 
19 	String userName;
20 	String serviceName;
21 
PacketUserauthRequestNone(String serviceName, String user)22 	public PacketUserauthRequestNone(String serviceName, String user)
23 	{
24 		this.serviceName = serviceName;
25 		this.userName = user;
26 	}
27 
PacketUserauthRequestNone(byte payload[], int off, int len)28 	public PacketUserauthRequestNone(byte payload[], int off, int len) throws IOException
29 	{
30 		this.payload = new byte[len];
31 		System.arraycopy(payload, off, this.payload, 0, len);
32 
33 		TypesReader tr = new TypesReader(payload, off, len);
34 
35 		int packet_type = tr.readByte();
36 
37 		if (packet_type != Packets.SSH_MSG_USERAUTH_REQUEST)
38 			throw new IOException("This is not a SSH_MSG_USERAUTH_REQUEST! (" + packet_type + ")");
39 
40 		userName = tr.readString();
41 		serviceName = tr.readString();
42 
43 		String method = tr.readString();
44 
45 		if (method.equals("none") == false)
46 			throw new IOException("This is not a SSH_MSG_USERAUTH_REQUEST with type none!");
47 
48 		if (tr.remain() != 0)
49 			throw new IOException("Padding in SSH_MSG_USERAUTH_REQUEST packet!");
50 	}
51 
getPayload()52 	public byte[] getPayload()
53 	{
54 		if (payload == null)
55 		{
56 			TypesWriter tw = new TypesWriter();
57 			tw.writeByte(Packets.SSH_MSG_USERAUTH_REQUEST);
58 			tw.writeString(userName);
59 			tw.writeString(serviceName);
60 			tw.writeString("none");
61 			payload = tw.getBytes();
62 		}
63 		return payload;
64 	}
65 }
66