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//
// ========================================================================
// 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.spdy.server.http;
import org.eclipse.jetty.io.EndPoint;
import org.eclipse.jetty.server.Connector;
import org.eclipse.jetty.server.HttpConfiguration;
import org.eclipse.jetty.spdy.api.DataInfo;
import org.eclipse.jetty.spdy.api.HeadersInfo;
import org.eclipse.jetty.spdy.api.PushInfo;
import org.eclipse.jetty.spdy.api.ReplyInfo;
import org.eclipse.jetty.spdy.api.Stream;
import org.eclipse.jetty.spdy.api.StreamFrameListener;
import org.eclipse.jetty.spdy.api.SynInfo;
import org.eclipse.jetty.spdy.api.server.ServerSessionFrameListener;
import org.eclipse.jetty.spdy.server.SPDYServerConnectionFactory;
import org.eclipse.jetty.util.Fields;
import org.eclipse.jetty.util.annotation.Name;
import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.Logger;
public class HTTPSPDYServerConnectionFactory extends SPDYServerConnectionFactory implements HttpConfiguration.ConnectionFactory
{
private static final String CHANNEL_ATTRIBUTE = "org.eclipse.jetty.spdy.server.http.HTTPChannelOverSPDY";
private static final Logger LOG = Log.getLogger(HTTPSPDYServerConnectionFactory.class);
private final PushStrategy pushStrategy;
private final HttpConfiguration httpConfiguration;
public HTTPSPDYServerConnectionFactory(
@Name("version") int version,
@Name("config") HttpConfiguration config)
{
this(version,config,new PushStrategy.None());
}
public HTTPSPDYServerConnectionFactory(
@Name("version") int version,
@Name("config") HttpConfiguration config,
@Name("pushStrategy") PushStrategy pushStrategy)
{
super(version);
this.pushStrategy = pushStrategy;
httpConfiguration = config;
addBean(httpConfiguration);
}
@Override
public HttpConfiguration getHttpConfiguration()
{
return httpConfiguration;
}
@Override
protected ServerSessionFrameListener provideServerSessionFrameListener(Connector connector, EndPoint endPoint)
{
return new HTTPServerFrameListener(connector,endPoint);
}
private class HTTPServerFrameListener extends ServerSessionFrameListener.Adapter implements StreamFrameListener
{
private final Connector connector;
private final EndPoint endPoint;
public HTTPServerFrameListener(Connector connector,EndPoint endPoint)
{
this.endPoint = endPoint;
this.connector=connector;
}
@Override
public StreamFrameListener onSyn(final Stream stream, SynInfo synInfo)
{
// Every time we have a SYN, it maps to a HTTP request.
// We can have multiple concurrent SYNs on the same connection,
// and this is very different from HTTP, where only one request
// can arrive on the same connection, so we need to create an
// HttpChannel for each SYN in order to run concurrently.
if (LOG.isDebugEnabled())
LOG.debug("Received {} on {}", synInfo, stream);
Fields headers = synInfo.getHeaders();
// According to SPDY/3 spec section 3.2.1 user-agents MUST support gzip compression. Firefox omits the
// accept-encoding header as it is redundant to negotiate gzip compression support with the server,
// if clients have to accept it.
// So we inject the accept-encoding header here, even if not set by the client. This will enforce SPDY
// clients to follow the spec and enable gzip compression if GzipFilter or the like is enabled.
if (!(headers.get("accept-encoding") != null && headers.get("accept-encoding").getValue().contains
("gzip")))
headers.add("accept-encoding", "gzip");
HttpTransportOverSPDY transport = new HttpTransportOverSPDY(connector, httpConfiguration, endPoint,
pushStrategy, stream, headers);
HttpInputOverSPDY input = new HttpInputOverSPDY();
HttpChannelOverSPDY channel = new HttpChannelOverSPDY(connector, httpConfiguration, endPoint, transport, input, stream);
stream.setAttribute(CHANNEL_ATTRIBUTE, channel);
channel.requestStart(headers, synInfo.isClose());
if (headers.isEmpty())
{
// If the SYN has no headers, they may come later in a HEADERS frame
return this;
}
else
{
if (synInfo.isClose())
return null;
else
return this;
}
}
@Override
public void onReply(Stream stream, ReplyInfo replyInfo)
{
// Do nothing, servers cannot get replies
}
@Override
public void onHeaders(Stream stream, HeadersInfo headersInfo)
{
if (LOG.isDebugEnabled())
LOG.debug("Received {} on {}", headersInfo, stream);
HttpChannelOverSPDY channel = (HttpChannelOverSPDY)stream.getAttribute(CHANNEL_ATTRIBUTE);
channel.requestHeaders(headersInfo.getHeaders(), headersInfo.isClose());
}
@Override
public StreamFrameListener onPush(Stream stream, PushInfo pushInfo)
{
return null;
}
@Override
public void onData(Stream stream, final DataInfo dataInfo)
{
if (LOG.isDebugEnabled())
LOG.debug("Received {} on {}", dataInfo, stream);
HttpChannelOverSPDY channel = (HttpChannelOverSPDY)stream.getAttribute(CHANNEL_ATTRIBUTE);
channel.requestContent(dataInfo, dataInfo.isClose());
}
@Override
public void onFailure(Stream stream, Throwable x)
{
LOG.debug(x);
}
}
}
