1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
//
// Mono.Security.Protocol.Ntlm.Type1Message - Negotiation
//
// Author:
// Sebastien Pouliot <sebastien@ximian.com>
//
// (C) 2003 Motus Technologies Inc. (http://www.motus.com)
// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
//
// References
// a. NTLM Authentication Scheme for HTTP, Ronald Tschalär
// http://www.innovation.ch/java/ntlm.html
// b. The NTLM Authentication Protocol, Copyright © 2003 Eric Glass
// http://davenport.sourceforge.net/ntlm.html
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Globalization;
using System.Text;
namespace Mono.Security.Protocol.Ntlm {
public class Type1Message : MessageBase {
private string _host;
private string _domain;
public Type1Message () : base (1)
{
// default values
_domain = Environment.UserDomainName;
_host = Environment.MachineName;
Flags = (NtlmFlags) 0xb207;
}
public Type1Message (byte[] message) : base (1)
{
Decode (message);
}
// properties
public string Domain {
get { return _domain; }
set {
if (value == null)
value = "";
if (value == "")
Flags &= ~NtlmFlags.NegotiateDomainSupplied;
else
Flags |= NtlmFlags.NegotiateDomainSupplied;
_domain = value;
}
}
public string Host {
get { return _host; }
set {
if (value == null)
value = "";
if (value == "")
Flags &= ~NtlmFlags.NegotiateWorkstationSupplied;
else
Flags |= NtlmFlags.NegotiateWorkstationSupplied;
_host = value;
}
}
// methods
protected override void Decode (byte[] message)
{
base.Decode (message);
Flags = (NtlmFlags) BitConverterLE.ToUInt32 (message, 12);
int dom_len = BitConverterLE.ToUInt16 (message, 16);
int dom_off = BitConverterLE.ToUInt16 (message, 20);
_domain = Encoding.ASCII.GetString (message, dom_off, dom_len);
int host_len = BitConverterLE.ToUInt16 (message, 24);
_host = Encoding.ASCII.GetString (message, 32, host_len);
}
public override byte[] GetBytes ()
{
short dom_len = (short) _domain.Length;
short host_len = (short) _host.Length;
byte[] data = PrepareMessage (32 + dom_len + host_len);
data [12] = (byte) Flags;
data [13] = (byte)((uint)Flags >> 8);
data [14] = (byte)((uint)Flags >> 16);
data [15] = (byte)((uint)Flags >> 24);
short dom_off = (short)(32 + host_len);
data [16] = (byte) dom_len;
data [17] = (byte)(dom_len >> 8);
data [18] = data [16];
data [19] = data [17];
data [20] = (byte) dom_off;
data [21] = (byte)(dom_off >> 8);
data [24] = (byte) host_len;
data [25] = (byte)(host_len >> 8);
data [26] = data [24];
data [27] = data [25];
data [28] = 0x20;
data [29] = 0x00;
byte[] host = Encoding.ASCII.GetBytes (_host.ToUpper (CultureInfo.InvariantCulture));
Buffer.BlockCopy (host, 0, data, 32, host.Length);
byte[] domain = Encoding.ASCII.GetBytes (_domain.ToUpper (CultureInfo.InvariantCulture));
Buffer.BlockCopy (domain, 0, data, dom_off, domain.Length);
return data;
}
}
}
|
