class/System.Runtime.Remoting/System.Runtime.Remoting.Channels.Http/HttpRemotingHandler.cs

   1 //
   2 // System.Runtime.Remoting.Channels.Http.HttpRemotingHandler
   3 //
   4 // Authors:
   5 //      Martin Willemoes Hansen (mwh@sysrq.dk)
   6 //      Lluis Sanchez Gual (lluis@ximian.com)
   7 //
   8 // (C) 2003 Martin Willemoes Hansen
   9 //
  10
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31
  32 using System;
  33 using System.IO;
  34 using System.Web;
  35 using System.Collections;
  36
  37 namespace System.Runtime.Remoting.Channels.Http
  38 {
  39         public class HttpRemotingHandler : IHttpHandler
  40         {
  41                 HttpServerTransportSink transportSink;
  42
  43                 public HttpRemotingHandler ()
  44                 {
  45                 }
  46
  47                 [MonoTODO]
  48                 public HttpRemotingHandler (Type type, object srvID)
  49                 {
  50                         throw new NotImplementedException ();
  51                 }
  52
  53                 internal HttpRemotingHandler (HttpServerTransportSink sink)
  54                 {
  55                         transportSink = sink;
  56                 }
  57
  58                 public bool IsReusable {
  59                         get { return true; }
  60                 }
  61
  62                 public void ProcessRequest (HttpContext context)
  63                 {
  64                         HttpRequest request = context.Request;
  65                         HttpResponse response = context.Response;
  66
  67                         // Create transport headers for the request
  68                         TransportHeaders theaders = new TransportHeaders();
  69
  70                         string objectUri = request.RawUrl;
  71                         objectUri = objectUri.Substring (request.ApplicationPath.Length);       // application path is not part of the uri
  72                         if (request.ApplicationPath.Length > 0 &&
  73                            (objectUri.StartsWith("/") || objectUri.StartsWith(@"\")) )
  74                         {
  75                                 objectUri = objectUri.Substring(1);
  76                         }
  77
  78                         theaders ["__RequestUri"] = objectUri;
  79                         theaders ["Content-Type"] = request.ContentType;
  80                         theaders ["__RequestVerb"]= request.HttpMethod;
  81                         theaders ["__HttpVersion"] = request.Headers ["http-version"];
  82                         theaders ["User-Agent"] = request.UserAgent;
  83                         theaders ["Host"] = request.Headers ["host"];
  84
  85                         ITransportHeaders responseHeaders;
  86                         Stream responseStream;
  87
  88                         // Dispatch the request
  89                         ServerProcessing proc = transportSink.SynchronousDispatch
  90                                 (theaders, request.InputStream, out responseHeaders, out responseStream);
  91
  92                         if (proc == ServerProcessing.Async) {
  93                                 throw new NotSupportedException ("HttpRemotingHandler does not support async processing in " +
  94                                         "the synchronous HTTP pipeline" );
  95                         }
  96
  97                         // Write the response
  98                         if (responseHeaders != null && responseHeaders["__HttpStatusCode"] != null)
  99                         {
 100                                 // The formatter can set the status code
 101                                 response.StatusCode = int.Parse ((string) responseHeaders["__HttpStatusCode"]);
 102                                 response.StatusDescription = (string) responseHeaders["__HttpReasonPhrase"];
 103                         }
 104
 105                         if (responseHeaders != null)
 106                         {
 107                                 foreach (DictionaryEntry entry in responseHeaders)
 108                                 {
 109                                         string key = entry.Key.ToString();
 110                                         if (key != CommonTransportKeys.HttpStatusCode && key != CommonTransportKeys.HttpReasonPhrase)
 111                                                 response.AppendHeader(key, entry.Value.ToString());
 112                                 }
 113                         }
 114
 115                         if (responseStream != null) {
 116                                 HttpClientTransportSink.CopyStream (responseStream, response.OutputStream, 1024);
 117                         }
 118                 }
 119         }
 120 }