mcs/class/System.ServiceModel/System.ServiceModel.Channels/TextMessageEncoder.cs

   1 //
   2 // TextMessageEncoder.cs
   3 //
   4 // Author: Atsushi Enomoto (atsushi@ximian.com)
   5 //
   6 // Copyright (C) 2005 Novell, Inc (http://www.novell.com)
   7 //
   8 // Permission is hereby granted, free of charge, to any person obtaining
   9 // a copy of this software and associated documentation files (the
  10 // "Software"), to deal in the Software without restriction, including
  11 // without limitation the rights to use, copy, modify, merge, publish,
  12 // distribute, sublicense, and/or sell copies of the Software, and to
  13 // permit persons to whom the Software is furnished to do so, subject to
  14 // the following conditions:
  15 //
  16 // The above copyright notice and this permission notice shall be
  17 // included in all copies or substantial portions of the Software.
  18 //
  19 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  20 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  21 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  22 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  23 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  24 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  25 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  26 //
  27 using System;
  28 using System.IO;
  29 using System.Collections.ObjectModel;
  30 using System.ServiceModel;
  31 using System.Text;
  32 using System.Xml;
  33
  34 namespace System.ServiceModel.Channels
  35 {
  36         internal class TextMessageEncoder : MessageEncoder
  37         {
  38                 Encoding encoding;
  39                 MessageVersion version;
  40
  41                 public TextMessageEncoder (MessageVersion version, Encoding encoding)
  42                 {
  43                         this.version = version;
  44                         this.encoding = encoding;
  45                 }
  46
  47                 internal Encoding Encoding {
  48                         get { return encoding; }
  49                 }
  50
  51                 public override string ContentType {
  52                         get { return String.Concat (MediaType, "; charset=", encoding.WebName); }
  53                 }
  54
  55                 public override string MediaType {
  56                         get { return version.Envelope == EnvelopeVersion.Soap12 ? "application/soap+xml" : "text/xml";  }
  57                 }
  58
  59                 public override MessageVersion MessageVersion {
  60                         get { return version; }
  61                 }
  62
  63                 [MonoTODO]
  64                 public override Message ReadMessage (ArraySegment<byte> buffer,
  65                         BufferManager bufferManager, string contentType)
  66                 {
  67                         if (bufferManager == null)
  68                                 throw new ArgumentNullException ("bufferManager");
  69                         var ret = Message.CreateMessage (
  70                                 XmlDictionaryReader.CreateDictionaryReader (
  71                                         XmlReader.Create (new StreamReader (
  72                                                 new MemoryStream (
  73                                                 buffer.Array, buffer.Offset,
  74                                                 buffer.Count), encoding))),
  75                                 // FIXME: supply max header size
  76                                 int.MaxValue,
  77                                 version);
  78                         FillActionContentType (ret, contentType);
  79                         return ret;
  80                 }
  81
  82                 public override Message ReadMessage (Stream stream,
  83                         int maxSizeOfHeaders, string contentType)
  84                 {
  85                         if (stream == null)
  86                                 throw new ArgumentNullException ("stream");
  87                         var ret = Message.CreateMessage (
  88                                 XmlDictionaryReader.CreateDictionaryReader (
  89                                         XmlReader.Create (new StreamReader (stream, encoding))),
  90                                 maxSizeOfHeaders,
  91                                 version);
  92                         ret.Properties.Encoder = this;
  93                         FillActionContentType (ret, contentType);
  94                         return ret;
  95                 }
  96
  97                 void FillActionContentType (Message msg, string contentType)
  98                 {
  99                         if (contentType.StartsWith ("application/soap+xml", StringComparison.Ordinal)) {
 100                                 var ct = new ContentType (contentType);
 101                                 if (ct.Parameters.ContainsKey ("action"))
 102                                         msg.Headers.Action = ct.Parameters ["action"];
 103                         }
 104                 }
 105
 106                 public override void WriteMessage (Message message, Stream stream)
 107                 {
 108                         if (message == null)
 109                                 throw new ArgumentNullException ("message");
 110                         if (stream == null)
 111                                 throw new ArgumentNullException ("stream");
 112                         VerifyMessageVersion (message);
 113
 114                         XmlWriterSettings s = new XmlWriterSettings ();
 115                         s.Encoding = encoding;
 116                         using (XmlWriter w = XmlWriter.Create (stream, s)) {
 117                                 message.WriteMessage (
 118                                         XmlDictionaryWriter.CreateDictionaryWriter (w));
 119                         }
 120                 }
 121
 122                 [MonoTODO]
 123                 public override ArraySegment<byte> WriteMessage (
 124                         Message message, int maxMessageSize,
 125                         BufferManager bufferManager, int messageOffset)
 126                 {
 127                         VerifyMessageVersion (message);
 128
 129                         ArraySegment<byte> seg = new ArraySegment<byte> (
 130                                 bufferManager.TakeBuffer (maxMessageSize),
 131                                 messageOffset, maxMessageSize);
 132                         XmlWriterSettings s = new XmlWriterSettings ();
 133                         s.Encoding = encoding;
 134                         using (XmlWriter w = XmlWriter.Create (
 135                                 new MemoryStream (seg.Array, seg.Offset, seg.Count), s)) {
 136                                 message.WriteMessage (
 137                                         XmlDictionaryWriter.CreateDictionaryWriter (w));
 138                         }
 139                         return seg;
 140                 }
 141         }
 142 }