mcs/class/System.Runtime.Remoting/System.Runtime.Remoting.Channels/SoapServerFormatterSink.cs

   1 //
   2 // System.Runtime.Remoting.Channels.SoapServerFormatterSink.cs
   3 //
   4 // Authors:     Duncan Mak (duncan@ximian.com)
   5 //              Jean-Marc Andre (jean-marc.andre@polymtl.ca)
   6 //
   7 // 2002 (C) Copyright, Ximian, Inc.
   8 //
   9
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 using System.Collections;
  32 using System.IO;
  33 using System.Reflection;
  34 using System.Runtime.Remoting.Messaging;
  35 using System.Runtime.Serialization;
  36 using System.Runtime.Serialization.Formatters;
  37 using System.Runtime.Serialization.Formatters.Soap;
  38 using System.Runtime.InteropServices;
  39
  40
  41 namespace System.Runtime.Remoting.Channels {
  42
  43         /// <summary>
  44         //      The formatter sink that uses SoapFormatter
  45         /// </summary>
  46         // <remarks>
  47         //      The formatter sink deserializes the message from the channel sink
  48         //      and passes the result to the remoting infrastructure
  49         // </remark>
  50         //
  51         public class SoapServerFormatterSink : IServerChannelSink, IChannelSinkBase
  52         {
  53                 IServerChannelSink next_sink;
  54                 IChannelReceiver _receiver;
  55                 private SoapCore _soapCore = SoapCore.DefaultInstance;
  56
  57                 public SoapServerFormatterSink (SoapServerFormatterSink.Protocol protocol,
  58                                                 IServerChannelSink nextSink,
  59                                                 IChannelReceiver receiver)
  60                 {
  61                         this.next_sink = nextSink;
  62                         _receiver = receiver;
  63                 }
  64
  65                 internal SoapCore SoapCore
  66                 {
  67                         get { return _soapCore; }
  68                         set { _soapCore = value; }
  69                 }
  70
  71                 /// <summary>
  72                 //      Gets the next channel sink in the channel sink chain
  73                 //  </summary>
  74                 /// <value>
  75                 //      The next channel sink in the sink chain
  76                 //  </value>
  77                 public IServerChannelSink NextChannelSink {
  78                         get {
  79                                 return next_sink;
  80                         }
  81                 }
  82
  83                 public IDictionary Properties {
  84                         get {
  85                                 return null;
  86                         }
  87                 }
  88
  89 #if NET_1_1
  90                 [ComVisible(false)]
  91                 public TypeFilterLevel TypeFilterLevel
  92                 {
  93                         get { return _soapCore.TypeFilterLevel; }
  94                         set
  95                         {
  96                                 IDictionary props = (IDictionary) ((ICloneable)_soapCore.Properties).Clone ();
  97                                 props ["typeFilterLevel"] = value;
  98                                 _soapCore = new SoapCore (this, props, SoapServerFormatterSinkProvider.AllowedProperties);
  99                         }
 100                 }
 101 #endif
 102
 103                 public void AsyncProcessResponse (IServerResponseChannelSinkStack sinkStack, object state,
 104                                                   IMessage msg, ITransportHeaders headers, Stream stream)
 105
 106                 {
 107                         ITransportHeaders responseHeaders = new TransportHeaders();
 108
 109                         if(sinkStack != null) stream = sinkStack.GetResponseStream(msg, responseHeaders);
 110                         if(stream == null) stream = new MemoryStream();
 111
 112                         SoapMessageFormatter soapMsgFormatter = (SoapMessageFormatter)state;
 113
 114                         SoapMessage soapMessage = (SoapMessage) soapMsgFormatter.BuildSoapMessageFromMethodResponse((IMethodReturnMessage)msg, out responseHeaders);
 115
 116                         _soapCore.Serializer.Serialize(stream, soapMessage, null);
 117
 118                         if(stream is MemoryStream) stream.Position = 0;
 119                         sinkStack.AsyncProcessResponse (msg, responseHeaders, stream);
 120                 }
 121
 122                 public Stream GetResponseStream (IServerResponseChannelSinkStack sinkStack, object state,
 123                                                 IMessage msg, ITransportHeaders headers)
 124                 {
 125                         // this method shouldn't be called
 126                         throw new NotSupportedException ();
 127                 }
 128
 129                 public ServerProcessing ProcessMessage (IServerChannelSinkStack sinkStack,
 130                                                         IMessage requestMsg, ITransportHeaders requestHeaders, Stream requestStream,
 131                                                         out IMessage responseMsg, out ITransportHeaders responseHeaders, out Stream responseStream)
 132                 {
 133                         responseMsg = null;
 134                         responseHeaders = null;
 135                         responseStream = null;
 136
 137                         Exception exception;
 138                         ServerProcessing sp;
 139                         SoapMessageFormatter soapMsgFormatter = new SoapMessageFormatter();
 140                         sinkStack.Push(this, soapMsgFormatter);
 141
 142                         try {
 143                                 string url = (string)requestHeaders[CommonTransportKeys.RequestUri];
 144                                 string uri;
 145                                 _receiver.Parse(url, out uri);
 146                                 if(uri == null) uri = url;
 147                                 Type serverType = RemotingServices.GetServerTypeForUri(uri);
 148                                 if (serverType == null) throw new RemotingException ("No receiver for uri " + uri);
 149
 150                                 SoapFormatter fm = _soapCore.GetSafeDeserializer ();
 151                                 SoapMessage soapMessage = soapMsgFormatter.CreateSoapMessage (true);
 152                                 fm.TopObject = soapMessage;
 153                                 requestStream.Position = 0;
 154                                 fm.Deserialize(requestStream);
 155
 156                                 requestMsg = soapMsgFormatter.BuildMethodCallFromSoapMessage(soapMessage, uri);
 157
 158                                 sp = next_sink.ProcessMessage(sinkStack, requestMsg, requestHeaders, null, out responseMsg, out responseHeaders, out responseStream);
 159
 160                                 if(sp == ServerProcessing.Complete) {
 161                                         if(responseMsg != null && responseStream == null) {
 162
 163                                                 object rtnMessageObject = soapMsgFormatter.BuildSoapMessageFromMethodResponse((IMethodReturnMessage) responseMsg, out responseHeaders);
 164                                                 responseStream = new MemoryStream();
 165                                                 _soapCore.Serializer.Serialize(responseStream, rtnMessageObject);
 166                                         }
 167                                 }
 168                         }
 169                         catch(Exception e)
 170                         {
 171                                 responseMsg = (IMethodReturnMessage)new ReturnMessage(e, (IMethodCallMessage)requestMsg);
 172                                 object rtnMessageObject = soapMsgFormatter.BuildSoapMessageFromMethodResponse((IMethodReturnMessage) responseMsg, out responseHeaders);
 173                                 responseStream = new MemoryStream();
 174                                 _soapCore.Serializer.Serialize(responseStream, rtnMessageObject);
 175                                 sp = ServerProcessing.Complete;
 176                         }
 177
 178                         if (sp == ServerProcessing.Complete)
 179                                 sinkStack.Pop(this);
 180
 181                         return sp;
 182
 183                 }
 184
 185                 [Serializable]
 186                 public enum Protocol
 187                 {
 188                         Http = 0,
 189                         Other = 1,
 190                 }
 191         }
 192
 193 }