-
Notifications
You must be signed in to change notification settings - Fork 974
/
Http2ClientProvider.java
205 lines (182 loc) · 8.97 KB
/
Http2ClientProvider.java
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
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
/*
* JBoss, Home of Professional Open Source.
* Copyright 2014 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* Licensed 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.
*/
package io.undertow.client.http2;
import io.undertow.UndertowLogger;
import io.undertow.UndertowMessages;
import io.undertow.UndertowOptions;
import io.undertow.client.ALPNClientSelector;
import io.undertow.client.ClientCallback;
import io.undertow.client.ClientConnection;
import io.undertow.client.ClientProvider;
import io.undertow.client.ClientStatistics;
import io.undertow.client.http.HttpClientProvider;
import io.undertow.conduits.ByteActivityCallback;
import io.undertow.conduits.BytesReceivedStreamSourceConduit;
import io.undertow.conduits.BytesSentStreamSinkConduit;
import io.undertow.connector.ByteBufferPool;
import io.undertow.protocols.http2.Http2Channel;
import org.xnio.ChannelListener;
import org.xnio.IoFuture;
import org.xnio.IoUtils;
import org.xnio.OptionMap;
import org.xnio.Options;
import org.xnio.StreamConnection;
import org.xnio.XnioIoThread;
import org.xnio.XnioWorker;
import org.xnio.ssl.SslConnection;
import org.xnio.ssl.XnioSsl;
import java.net.InetSocketAddress;
import java.net.URI;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
/**
* Plaintext HTTP2 client provider that works using HTTP upgrade
*
* @author Stuart Douglas
*/
public class Http2ClientProvider implements ClientProvider {
private static final String HTTP2 = "h2";
private static final String HTTP_1_1 = "http/1.1";
private static final ChannelListener<SslConnection> FAILED = new ChannelListener<SslConnection>() {
@Override
public void handleEvent(SslConnection connection) {
UndertowLogger.ROOT_LOGGER.alpnConnectionFailed(connection);
IoUtils.safeClose(connection);
}
};
@Override
public void connect(final ClientCallback<ClientConnection> listener, final URI uri, final XnioWorker worker, final XnioSsl ssl, final ByteBufferPool bufferPool, final OptionMap options) {
connect(listener, null, uri, worker, ssl, bufferPool, options);
}
@Override
public void connect(final ClientCallback<ClientConnection> listener, final URI uri, final XnioIoThread ioThread, final XnioSsl ssl, final ByteBufferPool bufferPool, final OptionMap options) {
connect(listener, null, uri, ioThread, ssl, bufferPool, options);
}
@Override
public Set<String> handlesSchemes() {
return new HashSet<>(Arrays.asList(new String[]{HTTP2}));
}
@Override
public void connect(final ClientCallback<ClientConnection> listener, InetSocketAddress bindAddress, final URI uri, final XnioWorker worker, final XnioSsl ssl, final ByteBufferPool bufferPool, final OptionMap options) {
if (ssl == null) {
listener.failed(UndertowMessages.MESSAGES.sslWasNull());
return;
}
OptionMap tlsOptions = OptionMap.builder()
.set(UndertowOptions.ENDPOINT_IDENTIFICATION_ALGORITHM, HttpClientProvider.DISABLE_HTTPS_ENDPOINT_IDENTIFICATION? "" : "HTTPS")
.addAll(options)
.set(Options.SSL_STARTTLS, true)
.getMap();
if(bindAddress == null) {
ssl.openSslConnection(worker, new InetSocketAddress(uri.getHost(), uri.getPort() == -1 ? 443 : uri.getPort()), createOpenListener(listener, uri, ssl, bufferPool, tlsOptions), tlsOptions).addNotifier(createNotifier(listener), null);
} else {
ssl.openSslConnection(worker, bindAddress, new InetSocketAddress(uri.getHost(), uri.getPort() == -1 ? 443 : uri.getPort()), createOpenListener(listener, uri, ssl, bufferPool, tlsOptions), tlsOptions).addNotifier(createNotifier(listener), null);
}
}
@Override
public void connect(final ClientCallback<ClientConnection> listener, InetSocketAddress bindAddress, final URI uri, final XnioIoThread ioThread, final XnioSsl ssl, final ByteBufferPool bufferPool, final OptionMap options) {
if (ssl == null) {
listener.failed(UndertowMessages.MESSAGES.sslWasNull());
return;
}
OptionMap tlsOptions = OptionMap.builder()
.set(UndertowOptions.ENDPOINT_IDENTIFICATION_ALGORITHM, HttpClientProvider.DISABLE_HTTPS_ENDPOINT_IDENTIFICATION? "" : "HTTPS")
.addAll(options)
.set(Options.SSL_STARTTLS, true)
.getMap();
if(bindAddress == null) {
ssl.openSslConnection(ioThread, new InetSocketAddress(uri.getHost(), uri.getPort() == -1 ? 443 : uri.getPort()), createOpenListener(listener, uri, ssl, bufferPool, tlsOptions), tlsOptions).addNotifier(createNotifier(listener), null);
} else {
ssl.openSslConnection(ioThread, bindAddress, new InetSocketAddress(uri.getHost(), uri.getPort() == -1 ? 443 : uri.getPort()), createOpenListener(listener, uri, ssl, bufferPool, tlsOptions), tlsOptions).addNotifier(createNotifier(listener), null);
}
}
private IoFuture.Notifier<StreamConnection, Object> createNotifier(final ClientCallback<ClientConnection> listener) {
return new IoFuture.Notifier<StreamConnection, Object>() {
@Override
public void notify(IoFuture<? extends StreamConnection> ioFuture, Object o) {
if (ioFuture.getStatus() == IoFuture.Status.FAILED) {
listener.failed(ioFuture.getException());
}
}
};
}
private ChannelListener<StreamConnection> createOpenListener(final ClientCallback<ClientConnection> listener, final URI uri, final XnioSsl ssl, final ByteBufferPool bufferPool, final OptionMap options) {
return new ChannelListener<StreamConnection>() {
@Override
public void handleEvent(StreamConnection connection) {
handleConnected(connection, listener, uri, bufferPool, options);
}
};
}
public static ALPNClientSelector.ALPNProtocol alpnProtocol(final ClientCallback<ClientConnection> listener, URI uri, ByteBufferPool bufferPool, OptionMap options) {
return new ALPNClientSelector.ALPNProtocol(new ChannelListener<SslConnection>() {
@Override
public void handleEvent(SslConnection connection) {
listener.completed(createHttp2Channel(connection, bufferPool, options, uri.getHost()));
}
}, HTTP2);
}
private void handleConnected(StreamConnection connection, final ClientCallback<ClientConnection> listener, URI uri,ByteBufferPool bufferPool, OptionMap options) {
ALPNClientSelector.runAlpn((SslConnection) connection, FAILED, listener, alpnProtocol(listener, uri, bufferPool, options));
}
private static Http2ClientConnection createHttp2Channel(StreamConnection connection, ByteBufferPool bufferPool, OptionMap options, String defaultHost) {
final ClientStatisticsImpl clientStatistics;
//first we set up statistics, if required
if (options.get(UndertowOptions.ENABLE_STATISTICS, false)) {
clientStatistics = new ClientStatisticsImpl();
connection.getSinkChannel().setConduit(new BytesSentStreamSinkConduit(connection.getSinkChannel().getConduit(), new ByteActivityCallback() {
@Override
public void activity(long bytes) {
clientStatistics.written += bytes;
}
}));
connection.getSourceChannel().setConduit(new BytesReceivedStreamSourceConduit(connection.getSourceChannel().getConduit(), new ByteActivityCallback() {
@Override
public void activity(long bytes) {
clientStatistics.read += bytes;
}
}));
} else {
clientStatistics = null;
}
Http2Channel http2Channel = new Http2Channel(connection, null, bufferPool, null, true, false, options);
return new Http2ClientConnection(http2Channel, false, defaultHost, clientStatistics, true);
}
private static class ClientStatisticsImpl implements ClientStatistics {
private long requestCount, read, written;
@Override
public long getRequests() {
return requestCount;
}
@Override
public long getRead() {
return read;
}
@Override
public long getWritten() {
return written;
}
@Override
public void reset() {
read = 0;
written = 0;
requestCount = 0;
}
}
}