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
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
//
// ========================================================================
// Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.server;
import java.io.IOException;
import java.util.List;
import javax.net.ssl.SSLEngine;
import javax.net.ssl.SSLEngineResult;
import org.eclipse.jetty.io.AbstractConnection;
import org.eclipse.jetty.io.Connection;
import org.eclipse.jetty.io.EndPoint;
import org.eclipse.jetty.util.BufferUtil;
import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.Logger;
public abstract class NegotiatingServerConnection extends AbstractConnection
{
private static final Logger LOG = Log.getLogger(NegotiatingServerConnection.class);
private final Connector connector;
private final SSLEngine engine;
private final List<String> protocols;
private final String defaultProtocol;
private String protocol; // No need to be volatile: it is modified and read by the same thread
protected NegotiatingServerConnection(Connector connector, EndPoint endPoint, SSLEngine engine, List<String> protocols, String defaultProtocol)
{
super(endPoint, connector.getExecutor(), false);
this.connector = connector;
this.protocols = protocols;
this.defaultProtocol = defaultProtocol;
this.engine = engine;
}
protected List<String> getProtocols()
{
return protocols;
}
protected String getDefaultProtocol()
{
return defaultProtocol;
}
protected SSLEngine getSSLEngine()
{
return engine;
}
protected String getProtocol()
{
return protocol;
}
protected void setProtocol(String protocol)
{
this.protocol = protocol;
}
@Override
public void onOpen()
{
super.onOpen();
fillInterested();
}
@Override
public void onFillable()
{
int filled = fill();
if (filled == 0)
{
if (protocol == null)
{
if (engine.getHandshakeStatus() == SSLEngineResult.HandshakeStatus.NOT_HANDSHAKING)
{
// Here the SSL handshake is finished, but the protocol has not been negotiated.
if (LOG.isDebugEnabled())
LOG.debug("{} could not negotiate protocol, SSLEngine: {}", this, engine);
close();
}
else
{
// Here the SSL handshake is not finished yet but we filled 0 bytes,
// so we need to read more.
fillInterested();
}
}
else
{
ConnectionFactory connectionFactory = connector.getConnectionFactory(protocol);
if (connectionFactory == null)
{
LOG.info("{} application selected protocol '{}', but no correspondent {} has been configured",
this, protocol, ConnectionFactory.class.getName());
close();
}
else
{
EndPoint endPoint = getEndPoint();
Connection oldConnection = endPoint.getConnection();
Connection newConnection = connectionFactory.newConnection(connector, endPoint);
if (LOG.isDebugEnabled())
LOG.debug("{} switching from {} to {}", this, oldConnection, newConnection);
oldConnection.onClose();
endPoint.setConnection(newConnection);
getEndPoint().getConnection().onOpen();
}
}
}
else if (filled < 0)
{
// Something went bad, we need to close.
if (LOG.isDebugEnabled())
LOG.debug("{} detected close on client side", this);
close();
}
else
{
// Must never happen, since we fill using an empty buffer
throw new IllegalStateException();
}
}
private int fill()
{
try
{
return getEndPoint().fill(BufferUtil.EMPTY_BUFFER);
}
catch (IOException x)
{
LOG.debug(x);
close();
return -1;
}
}
@Override
public void close()
{
// Gentler close for SSL.
getEndPoint().shutdownOutput();
super.close();
}
}
|
