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//
// System.Runtime.Remoting.Channels.Tcp.TcpServerTransportSink.cs
//
// Author: Rodrigo Moya (rodrigo@ximian.com)
// Lluis Sanchez Gual (lsg@ctv.es)
//
// 2002 (C) Copyright, Ximian, Inc.
//
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Collections;
using System.Runtime.Remoting.Messaging;
using System.Net.Sockets;
using System.IO;
namespace System.Runtime.Remoting.Channels.Tcp
{
internal class TcpServerTransportSink : IServerChannelSink, IChannelSinkBase
{
IServerChannelSink next_sink;
public TcpServerTransportSink (IServerChannelSink next)
{
next_sink = next;
}
public IServerChannelSink NextChannelSink
{
get
{
return next_sink;
}
}
public IDictionary Properties
{
get
{
if (next_sink != null) return next_sink.Properties;
else return null;
}
}
public void AsyncProcessResponse (IServerResponseChannelSinkStack sinkStack, object state,
IMessage msg, ITransportHeaders headers, Stream responseStream)
{
ClientConnection connection = (ClientConnection)state;
NetworkStream ns = new NetworkStream (connection.Socket);
TcpMessageIO.SendMessageStream (ns, responseStream, headers, connection.Buffer);
ns.Flush ();
ns.Close ();
}
public Stream GetResponseStream (IServerResponseChannelSinkStack sinkStack, object state,
IMessage msg, ITransportHeaders headers)
{
return null;
}
public ServerProcessing ProcessMessage (IServerChannelSinkStack sinkStack,
IMessage requestMsg,
ITransportHeaders requestHeaders,
Stream requestStream,
out IMessage responseMsg,
out ITransportHeaders responseHeaders,
out Stream responseStream)
{
// this is the first sink, and TcpServerChannel does not call it.
throw new NotSupportedException ();
}
internal void InternalProcessMessage (ClientConnection connection, Stream stream)
{
// Reads the headers and the request stream
Stream requestStream;
ITransportHeaders requestHeaders;
requestStream = TcpMessageIO.ReceiveMessageStream (stream, out requestHeaders, connection.Buffer);
requestHeaders [CommonTransportKeys.IPAddress] = connection.ClientAddress;
requestHeaders [CommonTransportKeys.ConnectionId] = connection.Id;
string uri = (string) requestHeaders [CommonTransportKeys.RequestUri];
TcpChannel.ParseChannelUrl (uri, out uri);
if (uri != null)
requestHeaders [CommonTransportKeys.RequestUri] = uri;
// Pushes the connection object together with the sink. This information
// will be used for sending the response in an async call.
ServerChannelSinkStack sinkStack = new ServerChannelSinkStack();
sinkStack.Push(this, connection);
ITransportHeaders responseHeaders;
Stream responseStream;
IMessage responseMsg;
ServerProcessing proc = next_sink.ProcessMessage(sinkStack, null, requestHeaders, requestStream, out responseMsg, out responseHeaders, out responseStream);
switch (proc)
{
case ServerProcessing.Complete:
TcpMessageIO.SendMessageStream (stream, responseStream, responseHeaders, connection.Buffer);
stream.Flush ();
break;
case ServerProcessing.Async:
case ServerProcessing.OneWay:
break;
}
}
}
}
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