mcs/class/System.ServiceModel/System.ServiceModel.Channels.Http/HttpStandaloneRequestContext.cs

   1 //
   2 // HttpRequestContext.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto <atsushi@ximian.com>
   6 //
   7 // Copyright (C) 2006 Novell, Inc.  http://www.novell.com
   8 //
   9 // Permission is hereby granted, free of charge, to any person obtaining
  10 // a copy of this software and associated documentation files (the
  11 // "Software"), to deal in the Software without restriction, including
  12 // without limitation the rights to use, copy, modify, merge, publish,
  13 // distribute, sublicense, and/or sell copies of the Software, and to
  14 // permit persons to whom the Software is furnished to do so, subject to
  15 // the following conditions:
  16 //
  17 // The above copyright notice and this permission notice shall be
  18 // included in all copies or substantial portions of the Software.
  19 //
  20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 //
  28
  29 using System.IO;
  30 using System.Net;
  31 using System.Threading;
  32
  33 namespace System.ServiceModel.Channels.Http
  34 {
  35         internal class HttpStandaloneRequestContext : HttpRequestContextBase
  36         {
  37                 HttpListenerContext ctx;
  38
  39                 public HttpStandaloneRequestContext (HttpReplyChannel channel, Message msg, HttpListenerContext ctx)
  40                         : base (channel, msg)
  41                 {
  42                         if (ctx == null)
  43                                 throw new ArgumentNullException ("ctx");
  44                         this.ctx = ctx;
  45                 }
  46
  47                 public override void Abort ()
  48                 {
  49                         ctx.Response.Abort ();
  50                 }
  51
  52                 protected override void ProcessReply (Message msg, TimeSpan timeout)
  53                 {
  54                         if (msg == null)
  55                                 throw new ArgumentNullException ("msg");
  56
  57                         // FIXME: probably in WebHttpBinding land, there should
  58                         // be some additional code (probably IErrorHandler) that
  59                         // treats DestinationUnreachable (and possibly any other)
  60                         // errors as HTTP 400 or something appropriate.
  61                         // I originally rewrote the HTTP status here, but it
  62                         // was wrong.
  63
  64                         // FIXME: should this be done here?
  65                         if (Channel.MessageVersion.Addressing.Equals (AddressingVersion.None))
  66                                 msg.Headers.Action = null; // prohibited
  67
  68                         MemoryStream ms = new MemoryStream ();
  69                         Channel.Encoder.WriteMessage (msg, ms);
  70                         ctx.Response.ContentType = Channel.Encoder.ContentType;
  71
  72                         string pname = HttpResponseMessageProperty.Name;
  73                         bool suppressEntityBody = false;
  74                         if (msg.Properties.ContainsKey (pname)) {
  75                                 HttpResponseMessageProperty hp = (HttpResponseMessageProperty) msg.Properties [pname];
  76                                 string contentType = hp.Headers ["Content-Type"];
  77                                 if (contentType != null)
  78                                         ctx.Response.ContentType = contentType;
  79                                 ctx.Response.Headers.Add (hp.Headers);
  80                                 if (hp.StatusCode != default (HttpStatusCode))
  81                                         ctx.Response.StatusCode = (int) hp.StatusCode;
  82                                 ctx.Response.StatusDescription = hp.StatusDescription;
  83                                 if (hp.SuppressEntityBody)
  84                                         suppressEntityBody = true;
  85                         }
  86                         if (msg.IsFault)
  87                                 ctx.Response.StatusCode = 500;
  88                         if (!suppressEntityBody) {
  89                                 ctx.Response.ContentLength64 = ms.Length;
  90                                 ctx.Response.OutputStream.Write (ms.GetBuffer (), 0, (int) ms.Length);
  91                                 ctx.Response.OutputStream.Flush ();
  92                         }
  93                 }
  94
  95                 public override void Close (TimeSpan timeout)
  96                 {
  97                         ctx.Response.Close ();
  98                 }
  99         }
 100
 101         internal class AspNetRequestContext : HttpRequestContextBase
 102         {
 103                 public AspNetRequestContext (HttpReplyChannel channel, Message request)
 104                         : base (channel, request)
 105                 {
 106                         throw new NotImplementedException ();
 107                 }
 108
 109                 public override void Abort ()
 110                 {
 111                         throw new NotImplementedException ();
 112                 }
 113
 114                 protected override void ProcessReply (Message msg, TimeSpan timeout)
 115                 {
 116                         throw new NotImplementedException ();
 117                 }
 118
 119                 public override void Close (TimeSpan timeout)
 120                 {
 121                         throw new NotImplementedException ();
 122                 }
 123         }
 124
 125         internal abstract class HttpRequestContextBase : RequestContext
 126         {
 127                 Message request;
 128                 HttpReplyChannel channel;
 129
 130                 public HttpRequestContextBase (
 131                         HttpReplyChannel channel,
 132                         Message request)
 133                 {
 134                         if (channel == null)
 135                                 throw new ArgumentNullException ("channel");
 136                         if (request == null)
 137                                 throw new ArgumentNullException ("request");
 138                         this.channel = channel;
 139                         this.request = request;
 140                 }
 141
 142                 public override Message RequestMessage {
 143                         get { return request; }
 144                 }
 145
 146                 public HttpReplyChannel Channel {
 147                         get { return channel; }
 148                 }
 149
 150                 protected abstract void ProcessReply (Message msg, TimeSpan timeout);
 151
 152                 public override IAsyncResult BeginReply (
 153                         Message msg, AsyncCallback callback, object state)
 154                 {
 155                         return BeginReply (msg,
 156                                 Channel.DefaultSendTimeout,
 157                                 callback, state);
 158                 }
 159
 160                 Action<Message,TimeSpan> reply_delegate;
 161
 162                 public override IAsyncResult BeginReply (
 163                         Message msg, TimeSpan timeout,
 164                         AsyncCallback callback, object state)
 165                 {
 166                         if (reply_delegate == null)
 167                                 reply_delegate = new Action<Message,TimeSpan> (Reply);
 168                         return reply_delegate.BeginInvoke (msg, timeout, callback, state);
 169                 }
 170
 171                 public override void EndReply (IAsyncResult result)
 172                 {
 173                         if (result == null)
 174                                 throw new ArgumentNullException ("result");
 175                         if (reply_delegate == null)
 176                                 throw new InvalidOperationException ("reply operation has not started");
 177                         reply_delegate.EndInvoke (result);
 178                 }
 179
 180                 public override void Reply (Message msg)
 181                 {
 182                         Reply (msg, Channel.DefaultSendTimeout);
 183                 }
 184
 185                 public override void Reply (Message msg, TimeSpan timeout)
 186                 {
 187                         ProcessReply (msg, timeout);
 188                 }
 189
 190                 public override void Close ()
 191                 {
 192                         Close (Channel.DefaultSendTimeout);
 193                 }
 194         }
 195 }