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
144
145
146
147
148
149
150
|
// Licensed to the Apache Software Foundation(ASF) under one
// or more contributor license agreements.See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
using System;
using System.Net;
using System.Net.Security;
using System.Net.Sockets;
using System.Security.Authentication;
using System.Security.Cryptography.X509Certificates;
using System.Threading;
using System.Threading.Tasks;
using Thrift.Transport.Client;
namespace Thrift.Transport.Server
{
// ReSharper disable once InconsistentNaming
public class TTlsServerSocketTransport : TServerTransport
{
private readonly RemoteCertificateValidationCallback _clientCertValidator;
private readonly int _clientTimeout = 0;
private readonly LocalCertificateSelectionCallback _localCertificateSelectionCallback;
private readonly X509Certificate2 _serverCertificate;
private readonly SslProtocols _sslProtocols;
private TcpListener _server;
public TTlsServerSocketTransport(
TcpListener listener,
X509Certificate2 certificate,
RemoteCertificateValidationCallback clientCertValidator = null,
LocalCertificateSelectionCallback localCertificateSelectionCallback = null,
SslProtocols sslProtocols = SslProtocols.Tls12)
{
if (!certificate.HasPrivateKey)
{
throw new TTransportException(TTransportException.ExceptionType.Unknown,
"Your server-certificate needs to have a private key");
}
_serverCertificate = certificate;
_clientCertValidator = clientCertValidator;
_localCertificateSelectionCallback = localCertificateSelectionCallback;
_sslProtocols = sslProtocols;
_server = listener;
}
public TTlsServerSocketTransport(
int port,
X509Certificate2 certificate,
RemoteCertificateValidationCallback clientCertValidator = null,
LocalCertificateSelectionCallback localCertificateSelectionCallback = null,
SslProtocols sslProtocols = SslProtocols.Tls12)
: this(null, certificate, clientCertValidator, localCertificateSelectionCallback)
{
try
{
// Create server socket
_server = new TcpListener(IPAddress.Any, port);
_server.Server.NoDelay = true;
}
catch (Exception)
{
_server = null;
throw new TTransportException($"Could not create ServerSocket on port {port}.");
}
}
public override void Listen()
{
// Make sure accept is not blocking
if (_server != null)
{
try
{
_server.Start();
}
catch (SocketException sx)
{
throw new TTransportException($"Could not accept on listening socket: {sx.Message}");
}
}
}
public override bool IsClientPending()
{
return _server.Pending();
}
protected override async ValueTask<TTransport> AcceptImplementationAsync(CancellationToken cancellationToken)
{
if (cancellationToken.IsCancellationRequested)
{
return await Task.FromCanceled<TTransport>(cancellationToken);
}
if (_server == null)
{
throw new TTransportException(TTransportException.ExceptionType.NotOpen, "No underlying server socket.");
}
try
{
var client = await _server.AcceptTcpClientAsync();
client.SendTimeout = client.ReceiveTimeout = _clientTimeout;
//wrap the client in an SSL Socket passing in the SSL cert
var tTlsSocket = new TTlsSocketTransport(client, _serverCertificate, true, _clientCertValidator,
_localCertificateSelectionCallback, _sslProtocols);
await tTlsSocket.SetupTlsAsync();
return tTlsSocket;
}
catch (Exception ex)
{
throw new TTransportException(ex.ToString());
}
}
public override void Close()
{
if (_server != null)
{
try
{
_server.Stop();
}
catch (Exception ex)
{
throw new TTransportException($"WARNING: Could not close server socket: {ex}");
}
_server = null;
}
}
}
}
|