/*
* 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.server.protocol.http;
import io.undertow.UndertowLogger;
import io.undertow.UndertowMessages;
import io.undertow.UndertowOptions;
import io.undertow.conduits.BytesReceivedStreamSourceConduit;
import io.undertow.conduits.BytesSentStreamSinkConduit;
import io.undertow.conduits.ReadTimeoutStreamSourceConduit;
import io.undertow.conduits.WriteTimeoutStreamSinkConduit;
import io.undertow.server.ConnectorStatistics;
import io.undertow.server.ConnectorStatisticsImpl;
import io.undertow.server.DelegateOpenListener;
import io.undertow.server.HttpHandler;
import org.xnio.ChannelListener;
import org.xnio.IoUtils;
import org.xnio.OptionMap;
import org.xnio.Options;
import org.xnio.Pool;
import org.xnio.Pooled;
import org.xnio.StreamConnection;
import java.io.IOException;
import java.nio.ByteBuffer;
/**
* Open listener for HTTP server. XNIO should be set up to chain the accept handler to post-accept open
* listeners to this listener which actually initiates HTTP parsing.
*
* @author <a href="mailto:david.lloyd@redhat.com">David M. Lloyd</a>
*/
public final class HttpOpenListener implements ChannelListener<StreamConnection>, DelegateOpenListener {
private final Pool<ByteBuffer> bufferPool;
private final int bufferSize;
private volatile HttpHandler rootHandler;
private volatile OptionMap undertowOptions;
private volatile HttpRequestParser parser;
private volatile boolean statisticsEnabled;
private final ConnectorStatisticsImpl connectorStatistics;
@Deprecated
public HttpOpenListener(final Pool<ByteBuffer> pool, final int bufferSize) {
this(pool, OptionMap.EMPTY);
}
@Deprecated
public HttpOpenListener(final Pool<ByteBuffer> pool, final OptionMap undertowOptions, final int bufferSize) {
this(pool, undertowOptions);
}
public HttpOpenListener(final Pool<ByteBuffer> pool) {
this(pool, OptionMap.EMPTY);
}
public HttpOpenListener(final Pool<ByteBuffer> pool, final OptionMap undertowOptions) {
this.undertowOptions = undertowOptions;
this.bufferPool = pool;
Pooled<ByteBuffer> buf = pool.allocate();
this.bufferSize = buf.getResource().remaining();
buf.free();
parser = HttpRequestParser.instance(undertowOptions);
connectorStatistics = new ConnectorStatisticsImpl();
statisticsEnabled = undertowOptions.get(UndertowOptions.ENABLE_CONNECTOR_STATISTICS, false);
}
@Override
public void handleEvent(StreamConnection channel) {
handleEvent(channel, null);
}
@Override
public void handleEvent(final StreamConnection channel, Pooled<ByteBuffer> buffer) {
if (UndertowLogger.REQUEST_LOGGER.isTraceEnabled()) {
UndertowLogger.REQUEST_LOGGER.tracef("Opened connection with %s", channel.getPeerAddress());
}
//set read and write timeouts
try {
Integer readTimeout = channel.getOption(Options.READ_TIMEOUT);
Integer idleTimeout = undertowOptions.get(UndertowOptions.IDLE_TIMEOUT);
if ((readTimeout == null || readTimeout <= 0) && idleTimeout != null) {
readTimeout = idleTimeout;
} else if (readTimeout != null && idleTimeout != null && idleTimeout > 0) {
readTimeout = Math.min(readTimeout, idleTimeout);
}
if (readTimeout != null && readTimeout > 0) {
channel.getSourceChannel().setConduit(new ReadTimeoutStreamSourceConduit(channel.getSourceChannel().getConduit(), channel, this));
}
Integer writeTimeout = channel.getOption(Options.WRITE_TIMEOUT);
if ((writeTimeout == null || writeTimeout <= 0) && idleTimeout != null) {
writeTimeout = idleTimeout;
} else if (writeTimeout != null && idleTimeout != null && idleTimeout > 0) {
writeTimeout = Math.min(writeTimeout, idleTimeout);
}
if (writeTimeout != null && writeTimeout > 0) {
channel.getSinkChannel().setConduit(new WriteTimeoutStreamSinkConduit(channel.getSinkChannel().getConduit(), channel, this));
}
} catch (IOException e) {
IoUtils.safeClose(channel);
UndertowLogger.REQUEST_IO_LOGGER.ioException(e);
}
if(statisticsEnabled) {
channel.getSinkChannel().setConduit(new BytesSentStreamSinkConduit(channel.getSinkChannel().getConduit(), connectorStatistics.sentAccumulator()));
channel.getSourceChannel().setConduit(new BytesReceivedStreamSourceConduit(channel.getSourceChannel().getConduit(), connectorStatistics.receivedAccumulator()));
}
HttpServerConnection connection = new HttpServerConnection(channel, bufferPool, rootHandler, undertowOptions, bufferSize);
HttpReadListener readListener = new HttpReadListener(connection, parser, statisticsEnabled ? connectorStatistics : null);
if(buffer != null) {
if(buffer.getResource().hasRemaining()) {
connection.setExtraBytes(buffer);
} else {
buffer.free();
}
}
connection.setReadListener(readListener);
readListener.newRequest();
channel.getSourceChannel().setReadListener(readListener);
readListener.handleEvent(channel.getSourceChannel());
}
@Override
public HttpHandler getRootHandler() {
return rootHandler;
}
@Override
public void setRootHandler(final HttpHandler rootHandler) {
this.rootHandler = rootHandler;
}
@Override
public OptionMap getUndertowOptions() {
return undertowOptions;
}
@Override
public void setUndertowOptions(final OptionMap undertowOptions) {
if (undertowOptions == null) {
throw UndertowMessages.MESSAGES.argumentCannotBeNull("undertowOptions");
}
this.undertowOptions = undertowOptions;
this.parser = HttpRequestParser.instance(undertowOptions);
statisticsEnabled = undertowOptions.get(UndertowOptions.ENABLE_CONNECTOR_STATISTICS, false);
}
@Override
public Pool<ByteBuffer> getBufferPool() {
return bufferPool;
}
@Override
public ConnectorStatistics getConnectorStatistics() {
if(statisticsEnabled) {
return connectorStatistics;
}
return null;
}
}