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

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