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
|
//
// Authors:
// Alan McGovern alan.mcgovern@gmail.com
// Ben Motmans <ben.motmans@gmail.com>
// Nicholas Terry <nick.i.terry@gmail.com>
//
// Copyright (C) 2006 Alan McGovern
// Copyright (C) 2007 Ben Motmans
// Copyright (C) 2014 Nicholas Terry
//
// 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.Collections.Generic;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;
using MediaBrowser.Common.Net;
using MediaBrowser.Model.Logging;
namespace Mono.Nat.Upnp
{
internal class Upnp
{
protected readonly ILogger Logger;
protected readonly IHttpClient HttpClient;
public Upnp(ILogger logger, IHttpClient httpClient)
{
Logger = logger;
HttpClient = httpClient;
}
public virtual Task<UpnpNatDevice> Handle(IPAddress localAddress, byte[] response, IPEndPoint endpoint)
{
// Convert it to a string for easy parsing
string dataString = null;
string urn;
dataString = Encoding.UTF8.GetString(response);
if (NatUtility.Verbose)
NatUtility.Log("UPnP Response: {0}", dataString);
/* For UPnP Port Mapping we need ot find either WANPPPConnection or WANIPConnection.
Any other device type is no good to us for this purpose. See the IGP overview paper
page 5 for an overview of device types and their hierarchy.
http://upnp.org/specs/gw/UPnP-gw-InternetGatewayDevice-v1-Device.pdf */
/* TODO: Currently we are assuming version 1 of the protocol. We should figure out which
version it is and apply the correct URN. */
/* Some routers don't correctly implement the version ID on the URN, so we only search for the type
prefix. */
string log = "UPnP Response: Router advertised a '{0}' service";
StringComparison c = StringComparison.OrdinalIgnoreCase;
if (dataString.IndexOf("urn:schemas-upnp-org:service:WANIPConnection:", c) != -1)
{
urn = "urn:schemas-upnp-org:service:WANIPConnection:1";
NatUtility.Log(log, "urn:schemas-upnp-org:service:WANIPConnection:1");
}
else if (dataString.IndexOf("urn:schemas-upnp-org:service:WANPPPConnection:", c) != -1)
{
urn = "urn:schemas-upnp-org:service:WANPPPConnection:1";
NatUtility.Log(log, "urn:schemas-upnp-org:service:WANPPPConnection:");
}
else
throw new NotSupportedException("Received non-supported device type");
// We have an internet gateway device now
var device = new UpnpNatDevice(localAddress, dataString, urn, Logger, HttpClient);
return Task.FromResult(device);
}
}
}
|
