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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 java.nio.ByteBuffer;
import org.eclipse.jetty.http.HttpField;
import org.eclipse.jetty.http.HttpMethod;
import org.eclipse.jetty.http.HttpVersion;
import org.eclipse.jetty.io.EndPoint;
import org.eclipse.jetty.server.Connector;
import org.eclipse.jetty.server.HttpChannel;
import org.eclipse.jetty.server.HttpConfiguration;
import org.eclipse.jetty.server.HttpTransport;
import org.eclipse.jetty.spdy.api.ByteBufferDataInfo;
import org.eclipse.jetty.spdy.api.DataInfo;
import org.eclipse.jetty.spdy.api.Stream;
import org.eclipse.jetty.spdy.http.HTTPSPDYHeader;
import org.eclipse.jetty.util.BufferUtil;
import org.eclipse.jetty.util.Fields;
import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.Logger;
public class HttpChannelOverSPDY extends HttpChannel
{
private static final Logger LOG = Log.getLogger(HttpChannelOverSPDY.class);
private final Stream stream;
private boolean dispatched; // Guarded by synchronization on tasks
private boolean redispatch; // Guarded by synchronization on tasks
private boolean headersComplete;
public HttpChannelOverSPDY(Connector connector, HttpConfiguration configuration, EndPoint endPoint, HttpTransport transport, HttpInputOverSPDY input, Stream stream)
{
super(connector, configuration, endPoint, transport, input);
this.stream = stream;
}
@Override
public long getIdleTimeout()
{
return stream.getIdleTimeout();
}
@Override
public boolean headerComplete()
{
headersComplete = true;
return super.headerComplete();
}
private void dispatch()
{
synchronized (this)
{
if (dispatched)
redispatch=true;
else
{
if (LOG.isDebugEnabled())
LOG.debug("Dispatch {}", this);
dispatched=true;
execute(this);
}
}
}
@Override
public void run()
{
boolean execute=true;
while(execute)
{
try
{
if (LOG.isDebugEnabled())
LOG.debug("Executing {}",this);
super.run();
}
finally
{
if (LOG.isDebugEnabled())
LOG.debug("Completing {}", this);
synchronized (this)
{
dispatched = redispatch;
redispatch=false;
execute=dispatched;
}
}
}
}
public void requestStart(final Fields headers, final boolean endRequest)
{
if (!headers.isEmpty())
requestHeaders(headers, endRequest);
}
public void requestHeaders(Fields headers, boolean endRequest)
{
boolean proceed = performBeginRequest(headers);
if (!proceed)
return;
performHeaders(headers);
if (endRequest)
{
boolean dispatch = headerComplete();
if (messageComplete())
dispatch=true;
if (dispatch)
dispatch();
}
}
public void requestContent(final DataInfo dataInfo, boolean endRequest)
{
boolean dispatch=false;
if (!headersComplete && headerComplete())
dispatch=true;
if (LOG.isDebugEnabled())
LOG.debug("HTTP > {} bytes of content", dataInfo.length());
// We need to copy the dataInfo since we do not know when its bytes
// will be consumed. When the copy is consumed, we consume also the
// original, so the implementation can send a window update.
ByteBuffer copyByteBuffer = dataInfo.asByteBuffer(false);
ByteBufferDataInfo copyDataInfo = new ByteBufferDataInfo(copyByteBuffer, dataInfo.isClose())
{
@Override
public void consume(int delta)
{
super.consume(delta);
dataInfo.consume(delta);
}
};
if (LOG.isDebugEnabled())
LOG.debug("Queuing last={} content {}", endRequest, copyDataInfo);
if (content(copyDataInfo))
dispatch=true;
if (endRequest && messageComplete())
dispatch=true;
if (dispatch)
dispatch();
}
@Override
public boolean messageComplete()
{
super.messageComplete();
return false;
}
private boolean performBeginRequest(Fields headers)
{
short version = stream.getSession().getVersion();
Fields.Field methodHeader = headers.get(HTTPSPDYHeader.METHOD.name(version));
Fields.Field uriHeader = headers.get(HTTPSPDYHeader.URI.name(version));
Fields.Field versionHeader = headers.get(HTTPSPDYHeader.VERSION.name(version));
if (methodHeader == null || uriHeader == null || versionHeader == null)
{
badMessage(400, "Missing required request line elements");
return false;
}
HttpMethod httpMethod = HttpMethod.fromString(methodHeader.getValue());
HttpVersion httpVersion = HttpVersion.fromString(versionHeader.getValue());
// TODO should handle URI as byte buffer as some bad clients send WRONG encodings in query string
// that we have to deal with
ByteBuffer uri = BufferUtil.toBuffer(uriHeader.getValue());
if (LOG.isDebugEnabled())
LOG.debug("HTTP > {} {} {}", httpMethod, uriHeader.getValue(), httpVersion);
startRequest(httpMethod, httpMethod.asString(), uri, httpVersion);
Fields.Field schemeHeader = headers.get(HTTPSPDYHeader.SCHEME.name(version));
if (schemeHeader != null)
getRequest().setScheme(schemeHeader.getValue());
return true;
}
private void performHeaders(Fields headers)
{
for (Fields.Field header : headers)
{
String name = header.getName();
// Skip special SPDY headers, unless it's the "host" header
HTTPSPDYHeader specialHeader = HTTPSPDYHeader.from(stream.getSession().getVersion(), name);
if (specialHeader != null)
{
if (specialHeader == HTTPSPDYHeader.HOST)
name = "host";
else
continue;
}
switch (name)
{
case "connection":
case "keep-alive":
case "proxy-connection":
case "transfer-encoding":
{
// Spec says to ignore these headers
continue;
}
default:
{
// Spec says headers must be single valued
String value = header.getValue();
if (LOG.isDebugEnabled())
LOG.debug("HTTP > {}: {}", name, value);
parsedHeader(new HttpField(name,value));
break;
}
}
}
}
}