//
// System.Runtime.Remoting.Channels.SoapServerFormatterSink.cs
//
// Authors: Duncan Mak (duncan@ximian.com)
// Jean-Marc Andre (jean-marc.andre@polymtl.ca)
//
// 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.Collections;
using System.IO;
using System.Reflection;
using System.Runtime.Remoting.Messaging;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters;
using System.Runtime.Serialization.Formatters.Soap;
using System.Runtime.InteropServices;
namespace System.Runtime.Remoting.Channels{
/// <summary>
// The formatter sink that uses SoapFormatter
/// </summary>
// <remarks>
// The formatter sink deserializes the message from the channel sink
// and passes the result to the remoting infrastructure
// </remark>
//
public class SoapServerFormatterSink : IServerChannelSink, IChannelSinkBase
{
IServerChannelSink next_sink;
IChannelReceiver _receiver;
private SoapCore _soapCore = SoapCore.DefaultInstance;
public SoapServerFormatterSink (SoapServerFormatterSink.Protocol protocol,
IServerChannelSink nextSink,
IChannelReceiver receiver)
{
this.next_sink = nextSink;
_receiver = receiver;
}
internal SoapCore SoapCore
{
get { return _soapCore; }
set { _soapCore = value; }
}
/// <summary>
// Gets the next channel sink in the channel sink chain
// </summary>
/// <value>
// The next channel sink in the sink chain
// </value>
public IServerChannelSink NextChannelSink {
get {
return next_sink;
}
}
public IDictionary Properties {
get {
return null;
}
}
#if NET_1_1
[ComVisible(false)]
public TypeFilterLevel TypeFilterLevel
{
get { return _soapCore.TypeFilterLevel; }
set
{
IDictionary props = (IDictionary) ((ICloneable)_soapCore.Properties).Clone ();
props ["typeFilterLevel"] = value;
_soapCore = new SoapCore (this, props, SoapServerFormatterSinkProvider.AllowedProperties);
}
}
#endif
public void AsyncProcessResponse (IServerResponseChannelSinkStack sinkStack, object state,
IMessage msg, ITransportHeaders headers, Stream stream)
{
ITransportHeaders responseHeaders = new TransportHeaders();
if(sinkStack != null) stream = sinkStack.GetResponseStream(msg, responseHeaders);
if(stream == null) stream = new MemoryStream();
SoapMessageFormatter soapMsgFormatter = (SoapMessageFormatter)state;
SoapMessage soapMessage = (SoapMessage) soapMsgFormatter.BuildSoapMessageFromMethodResponse((IMethodReturnMessage)msg, out responseHeaders);
_soapCore.Serializer.Serialize(stream, soapMessage, null);
if(stream is MemoryStream) stream.Position = 0;
sinkStack.AsyncProcessResponse (msg, responseHeaders, stream);
}
public Stream GetResponseStream (IServerResponseChannelSinkStack sinkStack, object state,
IMessage msg, ITransportHeaders headers)
{
// this method shouldn't be called
throw new NotSupportedException ();
}
public ServerProcessing ProcessMessage (IServerChannelSinkStack sinkStack,
IMessage requestMsg, ITransportHeaders requestHeaders, Stream requestStream,
out IMessage responseMsg, out ITransportHeaders responseHeaders, out Stream responseStream)
{
// Check whether the request was already processed by another
// formatter sink and pass the request to the next sink if so.
if (requestMsg != null)
return next_sink.ProcessMessage (sinkStack,
requestMsg,
requestHeaders,
requestStream,
out responseMsg,
out responseHeaders,
out responseStream);
// Check whether the request is suitable for this formatter
// and pass the request to the next sink if not.
// Note that a null content-type is handled as suitable,
// otherwise no other sink will be able to handle the request.
string contentType = requestHeaders["Content-Type"] as string;
if (contentType == null || !contentType.StartsWith ("text/xml") || requestHeaders["SOAPAction"] == null) {
return next_sink.ProcessMessage (sinkStack,
requestMsg,
requestHeaders,
requestStream,
out responseMsg,
out responseHeaders,
out responseStream);
}
responseMsg = null;
responseHeaders = null;
responseStream = null;
ServerProcessing sp;
SoapMessageFormatter soapMsgFormatter = new SoapMessageFormatter();
sinkStack.Push(this, soapMsgFormatter);
try {
string url = (string)requestHeaders[CommonTransportKeys.RequestUri];
string uri;
_receiver.Parse(url, out uri);
if(uri == null) uri = url;
Type serverType = RemotingServices.GetServerTypeForUri(uri);
if (serverType == null) throw new RemotingException ("No receiver for uri " + uri);
SoapFormatter fm = _soapCore.GetSafeDeserializer ();
SoapMessage soapMessage = soapMsgFormatter.CreateSoapMessage (true);
fm.TopObject = soapMessage;
fm.Deserialize(requestStream);
requestMsg = soapMsgFormatter.BuildMethodCallFromSoapMessage(soapMessage, uri);
sp = next_sink.ProcessMessage(sinkStack, requestMsg, requestHeaders, null, out responseMsg, out responseHeaders, out responseStream);
if(sp == ServerProcessing.Complete) {
if(responseMsg != null && responseStream == null) {
object rtnMessageObject = soapMsgFormatter.BuildSoapMessageFromMethodResponse((IMethodReturnMessage) responseMsg, out responseHeaders);
responseStream = new MemoryStream();
_soapCore.Serializer.Serialize(responseStream, rtnMessageObject);
responseStream.Position = 0;
}
}
}
catch(Exception e)
{
responseMsg = (IMethodReturnMessage)new ReturnMessage(e, (IMethodCallMessage)requestMsg);
object rtnMessageObject = soapMsgFormatter.BuildSoapMessageFromMethodResponse((IMethodReturnMessage) responseMsg, out responseHeaders);
responseStream = new MemoryStream();
_soapCore.Serializer.Serialize(responseStream, rtnMessageObject);
responseStream.Position = 0;
sp = ServerProcessing.Complete;
}
if (sp == ServerProcessing.Complete)
sinkStack.Pop(this);
return sp;
}
[Serializable]
public enum Protocol
{
Http = 0,
Other = 1,
}
}
}
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