io.undertow.client.http2.Http2ClientProvider Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
/*
* 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.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 FAILED = new ChannelListener() {
@Override
public void handleEvent(SslConnection connection) {
UndertowLogger.ROOT_LOGGER.alpnConnectionFailed(connection);
IoUtils.safeClose(connection);
}
};
@Override
public void connect(final ClientCallback 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 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 handlesSchemes() {
return new HashSet<>(Arrays.asList(new String[]{"h2"}));
}
@Override
public void connect(final ClientCallback 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().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 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;
}
if(bindAddress == null) {
OptionMap tlsOptions = OptionMap.builder().addAll(options).set(Options.SSL_STARTTLS, true).getMap();
ssl.openSslConnection(ioThread, new InetSocketAddress(uri.getHost(), uri.getPort() == -1 ? 443 : uri.getPort()), createOpenListener(listener, uri, ssl, bufferPool, tlsOptions), options).addNotifier(createNotifier(listener), null);
} else {
ssl.openSslConnection(ioThread, bindAddress, new InetSocketAddress(uri.getHost(), uri.getPort() == -1 ? 443 : uri.getPort()), createOpenListener(listener, uri, ssl, bufferPool, options), options).addNotifier(createNotifier(listener), null);
}
}
private IoFuture.Notifier createNotifier(final ClientCallback listener) {
return new IoFuture.Notifier() {
@Override
public void notify(IoFuture ioFuture, Object o) {
if (ioFuture.getStatus() == IoFuture.Status.FAILED) {
listener.failed(ioFuture.getException());
}
}
};
}
private ChannelListener createOpenListener(final ClientCallback listener, final URI uri, final XnioSsl ssl, final ByteBufferPool bufferPool, final OptionMap options) {
return new ChannelListener() {
@Override
public void handleEvent(StreamConnection connection) {
handleConnected(connection, listener, uri, bufferPool, options);
}
};
}
public static ALPNClientSelector.ALPNProtocol alpnProtocol(final ClientCallback listener, URI uri, ByteBufferPool bufferPool, OptionMap options) {
return new ALPNClientSelector.ALPNProtocol(new ChannelListener() {
@Override
public void handleEvent(SslConnection connection) {
listener.completed(createHttp2Channel(connection, bufferPool, options, uri.getHost()));
}
}, HTTP2);
}
private void handleConnected(StreamConnection connection, final ClientCallback 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;
}
}
}