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

   1 //
   2 // System.Runtime.Remoting.Channels.BinaryServerFormatterSink.cs
   3 //
   4 // Author: Duncan Mak (duncan@ximian.com)
   5 //         Lluis Sanchez Gual (lluis@ideary.com)
   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.Runtime.Remoting.Messaging;
  34 using System.Runtime.Serialization;
  35 using System.Runtime.Serialization.Formatters;
  36 using System.Runtime.Serialization.Formatters.Binary;
  37 using System.Runtime.InteropServices;
  38
  39 namespace System.Runtime.Remoting.Channels {
  40
  41         public class BinaryServerFormatterSink : IServerChannelSink, IChannelSinkBase
  42         {
  43                 [Serializable]
  44                 public enum Protocol
  45                 {
  46                         Http = 0,
  47                         Other = 1,
  48                 }
  49
  50                 BinaryCore _binaryCore = BinaryCore.DefaultInstance;
  51
  52                 IServerChannelSink next_sink;
  53                 Protocol protocol;
  54                 IChannelReceiver receiver;
  55
  56                 public BinaryServerFormatterSink (BinaryServerFormatterSink.Protocol protocol,
  57                                                   IServerChannelSink nextSink,
  58                                                   IChannelReceiver receiver)
  59                 {
  60                         this.protocol = protocol;
  61                         this.next_sink = nextSink;
  62                         this.receiver = receiver;
  63                 }
  64
  65                 internal BinaryCore BinaryCore
  66                 {
  67                         get { return _binaryCore; }
  68                         set { _binaryCore = value; }
  69                 }
  70
  71                 public IServerChannelSink NextChannelSink {
  72                         get {
  73                                 return next_sink;
  74                         }
  75                 }
  76
  77                 public IDictionary Properties {
  78                         get {
  79                                 return null;
  80                         }
  81                 }
  82
  83 #if NET_1_1
  84                 [ComVisible(false)]
  85                 public TypeFilterLevel TypeFilterLevel
  86                 {
  87                         get { return _binaryCore.TypeFilterLevel; }
  88                         set
  89                         {
  90                                 IDictionary props = (IDictionary) ((ICloneable)_binaryCore.Properties).Clone ();
  91                                 props ["typeFilterLevel"] = value;
  92                                 _binaryCore = new BinaryCore (this, props, BinaryServerFormatterSinkProvider.AllowedProperties);
  93                         }
  94                 }
  95 #endif
  96
  97                 public void AsyncProcessResponse (IServerResponseChannelSinkStack sinkStack, object state,
  98                                                   IMessage message, ITransportHeaders headers, Stream stream)
  99                 {
 100                         ITransportHeaders responseHeaders = new TransportHeaders();
 101
 102                         if (sinkStack != null) stream = sinkStack.GetResponseStream (message, responseHeaders);
 103                         if (stream == null) stream = new MemoryStream();
 104
 105                         _binaryCore.Serializer.Serialize (stream, message, null);
 106                         if (stream is MemoryStream) stream.Position = 0;
 107
 108                         sinkStack.AsyncProcessResponse (message, responseHeaders, stream);
 109                 }
 110
 111                 public Stream GetResponseStream (IServerResponseChannelSinkStack sinkStack, object state,
 112                                                 IMessage msg, ITransportHeaders headers)
 113                 {
 114                         return null;
 115                 }
 116
 117                 public ServerProcessing ProcessMessage (IServerChannelSinkStack sinkStack,
 118                                                         IMessage requestMsg, ITransportHeaders requestHeaders, Stream requestStream,
 119                                                         out IMessage responseMsg, out ITransportHeaders responseHeaders, out Stream responseStream)
 120                 {
 121                         sinkStack.Push (this, null);
 122                         ServerProcessing res;
 123
 124                         try
 125                         {
 126                                 string url = (string)requestHeaders[CommonTransportKeys.RequestUri];
 127                                 string uri;
 128                                 receiver.Parse (url, out uri);
 129                                 if (uri == null) uri = url;
 130
 131                                 MethodCallHeaderHandler mhh = new MethodCallHeaderHandler(uri);
 132                                 requestMsg = (IMessage) _binaryCore.Deserializer.Deserialize (requestStream, new HeaderHandler(mhh.HandleHeaders));
 133
 134                                 res = next_sink.ProcessMessage (sinkStack, requestMsg, requestHeaders, null, out responseMsg, out responseHeaders, out responseStream);
 135                         }
 136                         catch (Exception ex)
 137                         {
 138                                 responseMsg = new ReturnMessage (ex, (IMethodCallMessage)requestMsg);
 139                                 res = ServerProcessing.Complete;
 140                                 responseHeaders = null;
 141                                 responseStream = null;
 142                         }
 143
 144                         if (res == ServerProcessing.Complete)
 145                         {
 146                                 responseStream = null;
 147                                 responseHeaders = new TransportHeaders();
 148
 149                                 if (sinkStack != null) responseStream = sinkStack.GetResponseStream (responseMsg, responseHeaders);
 150                                 if (responseStream == null) responseStream = new MemoryStream();
 151
 152                                 _binaryCore.Serializer.Serialize (responseStream, responseMsg);
 153                                 if (responseStream is MemoryStream) responseStream.Position = 0;
 154
 155                                 sinkStack.Pop (this);
 156                         }
 157                         return res;
 158                 }
 159
 160         }
 161
 162         internal class MethodCallHeaderHandler
 163         {
 164                 string _uri;
 165
 166                 public MethodCallHeaderHandler (string uri)
 167                 {
 168                         _uri = uri;
 169                 }
 170
 171                 public object HandleHeaders (Header[] headers)
 172                 {
 173                         return _uri;
 174                 }
 175         }
 176 }