package io.undertow.server.protocol.http2;
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.protocols.http2.Http2Channel;
import io.undertow.server.ConnectorStatistics;
import io.undertow.server.ConnectorStatisticsImpl;
import io.undertow.server.DelegateOpenListener;
import io.undertow.server.HttpHandler;
import io.undertow.server.XnioByteBufferPool;
import org.xnio.ChannelListener;
import org.xnio.IoUtils;
import org.xnio.OptionMap;
import io.undertow.connector.ByteBufferPool;
import io.undertow.connector.PooledByteBuffer;
import org.xnio.Pool;
import org.xnio.StreamConnection;
import java.nio.ByteBuffer;
import java.util.Collections;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
public final class Http2OpenListener implements ChannelListener<StreamConnection>, DelegateOpenListener {
private final Set<Http2Channel> connections = Collections.newSetFromMap(new ConcurrentHashMap<>());
public static final String HTTP2 = "h2";
@Deprecated
public static final String HTTP2_14 = "h2-14";
private final ByteBufferPool bufferPool;
private final int bufferSize;
private final ChannelListener<Http2Channel> closeTask = new ChannelListener<Http2Channel>() {
@Override
public void handleEvent(Http2Channel channel) {
connectorStatistics.decrementConnectionCount();
}
};
private volatile HttpHandler rootHandler;
private volatile OptionMap undertowOptions;
private volatile boolean statisticsEnabled;
private final ConnectorStatisticsImpl connectorStatistics;
private final String protocol;
@Deprecated
public Http2OpenListener(final Pool<ByteBuffer> pool) {
this(pool, OptionMap.EMPTY);
}
@Deprecated
public Http2OpenListener(final Pool<ByteBuffer> pool, final OptionMap undertowOptions) {
this(pool, undertowOptions, HTTP2);
}
@Deprecated
public Http2OpenListener(final Pool<ByteBuffer> pool, final OptionMap undertowOptions, String protocol) {
this(new XnioByteBufferPool(pool), undertowOptions, protocol);
}
public Http2OpenListener(final ByteBufferPool pool) {
this(pool, OptionMap.EMPTY);
}
public Http2OpenListener(final ByteBufferPool pool, final OptionMap undertowOptions) {
this(pool, undertowOptions, HTTP2);
}
public Http2OpenListener(final ByteBufferPool pool, final OptionMap undertowOptions, String protocol) {
this.undertowOptions = undertowOptions;
this.bufferPool = pool;
PooledByteBuffer buf = pool.allocate();
this.bufferSize = buf.getBuffer().remaining();
buf.close();
connectorStatistics = new ConnectorStatisticsImpl();
statisticsEnabled = undertowOptions.get(UndertowOptions.ENABLE_STATISTICS, false);
this.protocol = protocol;
}
public void handleEvent(final StreamConnection channel, PooledByteBuffer buffer) {
if (UndertowLogger.REQUEST_LOGGER.isTraceEnabled()) {
UndertowLogger.REQUEST_LOGGER.tracef("Opened HTTP/2 connection with %s", channel.getPeerAddress());
}
Http2Channel http2Channel = new Http2Channel(channel, protocol, bufferPool, buffer, false, false, undertowOptions);
Integer idleTimeout = undertowOptions.get(UndertowOptions.IDLE_TIMEOUT);
if (idleTimeout != null && idleTimeout > 0) {
http2Channel.setIdleTimeout(idleTimeout);
}
if(statisticsEnabled) {
channel.getSinkChannel().setConduit(new BytesSentStreamSinkConduit(channel.getSinkChannel().getConduit(), connectorStatistics.sentAccumulator()));
channel.getSourceChannel().setConduit(new BytesReceivedStreamSourceConduit(channel.getSourceChannel().getConduit(), connectorStatistics.receivedAccumulator()));
connectorStatistics.incrementConnectionCount();
http2Channel.addCloseTask(closeTask);
}
connections.add(http2Channel);
http2Channel.addCloseTask(new ChannelListener<Http2Channel>() {
@Override
public void handleEvent(Http2Channel channel) {
connections.remove(channel);
}
});
http2Channel.getReceiveSetter().set(new Http2ReceiveListener(rootHandler, getUndertowOptions(), bufferSize, connectorStatistics));
http2Channel.resumeReceives();
}
@Override
public ConnectorStatistics getConnectorStatistics() {
if(statisticsEnabled) {
return connectorStatistics;
}
return null;
}
@Override
public void closeConnections() {
for(Http2Channel i : connections) {
IoUtils.safeClose(i);
}
}
@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;
statisticsEnabled = undertowOptions.get(UndertowOptions.ENABLE_CONNECTOR_STATISTICS, false);
}
@Override
public ByteBufferPool getBufferPool() {
return bufferPool;
}
@Override
public void handleEvent(StreamConnection channel) {
handleEvent(channel, null);
}
}