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

   1 //
   2 // HttpReplyChannel.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto <atsushi@ximian.com>
   6 //
   7 // Copyright (C) 2010 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 using System;
  29 using System.Collections.Generic;
  30 using System.Collections.Specialized;
  31 using System.IdentityModel.Selectors;
  32 using System.IdentityModel.Tokens;
  33 using System.IO;
  34 using System.Net;
  35 using System.ServiceModel;
  36 using System.ServiceModel.Security;
  37 using System.Text;
  38 using System.Threading;
  39
  40 namespace System.ServiceModel.Channels.Http
  41 {
  42         internal class HttpReplyChannel : InternalReplyChannelBase
  43         {
  44                 HttpChannelListener<IReplyChannel> source;
  45                 RequestContext reqctx;
  46                 SecurityTokenAuthenticator security_token_authenticator;
  47                 SecurityTokenResolver security_token_resolver;
  48
  49                 public HttpReplyChannel (HttpChannelListener<IReplyChannel> listener)
  50                         : base (listener)
  51                 {
  52                         this.source = listener;
  53
  54                         if (listener.SecurityTokenManager != null) {
  55                                 var str = new SecurityTokenRequirement () { TokenType = SecurityTokenTypes.UserName };
  56                                 security_token_authenticator = listener.SecurityTokenManager.CreateSecurityTokenAuthenticator (str, out security_token_resolver);
  57                         }
  58                 }
  59
  60                 public MessageEncoder Encoder {
  61                         get { return source.MessageEncoder; }
  62                 }
  63
  64                 internal MessageVersion MessageVersion {
  65                         get { return source.MessageEncoder.MessageVersion; }
  66                 }
  67
  68                 public override RequestContext ReceiveRequest (TimeSpan timeout)
  69                 {
  70                         RequestContext ctx;
  71                         if (!TryReceiveRequest (timeout, out ctx))
  72                                 throw new TimeoutException ();
  73                         return ctx;
  74                 }
  75
  76                 protected override void OnOpen (TimeSpan timeout)
  77                 {
  78                 }
  79
  80                 protected override void OnAbort ()
  81                 {
  82                         AbortConnections (TimeSpan.Zero);
  83                         base.OnAbort (); // FIXME: remove it. The base is wrong. But it is somehow required to not block some tests.
  84                 }
  85
  86                 public override bool CancelAsync (TimeSpan timeout)
  87                 {
  88                         AbortConnections (timeout);
  89                         // FIXME: this wait is sort of hack (because it should not be required), but without it some tests are blocked.
  90                         // This hack even had better be moved to base.CancelAsync().
  91                         if (CurrentAsyncResult != null)
  92                                 CurrentAsyncResult.AsyncWaitHandle.WaitOne (TimeSpan.FromMilliseconds (300));
  93                         return base.CancelAsync (timeout);
  94                 }
  95
  96                 void AbortConnections (TimeSpan timeout)
  97                 {
  98                         if (reqctx != null)
  99                                 reqctx.Close (timeout);
 100                 }
 101
 102                 bool close_started;
 103
 104                 protected override void OnClose (TimeSpan timeout)
 105                 {
 106                         if (close_started)
 107                                 return;
 108                         close_started = true;
 109                         DateTime start = DateTime.Now;
 110
 111                         // FIXME: consider timeout
 112                         AbortConnections (timeout - (DateTime.Now - start));
 113
 114                         base.OnClose (timeout - (DateTime.Now - start));
 115                 }
 116
 117                 protected string GetHeaderItem (string raw)
 118                 {
 119                         if (raw == null || raw.Length == 0)
 120                                 return raw;
 121                         switch (raw [0]) {
 122                         case '\'':
 123                         case '"':
 124                                 if (raw [raw.Length - 1] == raw [0])
 125                                         return raw.Substring (1, raw.Length - 2);
 126                                 // FIXME: is it simply an error?
 127                                 break;
 128                         }
 129                         return raw;
 130                 }
 131
 132                 protected HttpRequestMessageProperty CreateRequestProperty (HttpContextInfo ctxi)
 133                 {
 134                         var query = ctxi.Request.Url.Query;
 135                         var prop = new HttpRequestMessageProperty ();
 136                         prop.Method = ctxi.Request.HttpMethod;
 137                         prop.QueryString = query.StartsWith ("?") ? query.Substring (1) : query;
 138                         // FIXME: prop.SuppressEntityBody
 139                         prop.Headers.Add (ctxi.Request.Headers);
 140                         return prop;
 141                 }
 142
 143                 public override bool TryReceiveRequest (TimeSpan timeout, out RequestContext context)
 144                 {
 145                         context = null;
 146                         HttpContextInfo ctxi;
 147                         if (!source.ListenerManager.TryDequeueRequest (source.ChannelDispatcher, timeout, out ctxi))
 148                                 return false;
 149                         if (ctxi == null)
 150                                 return true; // returning true, yet context is null. This happens at closing phase.
 151
 152                         if (source.Source.AuthenticationScheme != AuthenticationSchemes.Anonymous) {
 153                                 if (security_token_authenticator != null)
 154                                         // FIXME: use return value?
 155                                         try {
 156                                                 security_token_authenticator.ValidateToken (new UserNameSecurityToken (ctxi.User, ctxi.Password));
 157                                         } catch (Exception) {
 158                                                 ctxi.ReturnUnauthorized ();
 159                                         }
 160                                 else {
 161                                         ctxi.ReturnUnauthorized ();
 162                                 }
 163                         }
 164
 165                         Message msg = null;
 166
 167                         if (ctxi.Request.HttpMethod == "POST") {
 168                                 msg = CreatePostMessage (ctxi);
 169                                 if (msg == null)
 170                                         return false;
 171                         } else if (ctxi.Request.HttpMethod == "GET")
 172                                 msg = Message.CreateMessage (MessageVersion.None, null); // HTTP GET-based request
 173
 174                         if (msg.Headers.To == null)
 175                                 msg.Headers.To = ctxi.Request.Url;
 176                         msg.Properties.Add ("Via", LocalAddress.Uri);
 177                         msg.Properties.Add (HttpRequestMessageProperty.Name, CreateRequestProperty (ctxi));
 178
 179                         context = new HttpRequestContext (this, ctxi, msg);
 180                         reqctx = context;
 181                         return true;
 182                 }
 183
 184                 protected Message CreatePostMessage (HttpContextInfo ctxi)
 185                 {
 186                         if (ctxi.Response.StatusCode != 200) { // it's already invalid.
 187                                 ctxi.Close ();
 188                                 return null;
 189                         }
 190
 191                         if (!Encoder.IsContentTypeSupported (ctxi.Request.ContentType)) {
 192                                 ctxi.Response.StatusCode = (int) HttpStatusCode.UnsupportedMediaType;
 193                                 ctxi.Response.StatusDescription = String.Format (
 194                                                 "Expected content-type '{0}' but got '{1}'", Encoder.ContentType, ctxi.Request.ContentType);
 195                                 ctxi.Close ();
 196
 197                                 return null;
 198                         }
 199
 200                         // FIXME: supply maxSizeOfHeaders.
 201                         int maxSizeOfHeaders = 0x10000;
 202
 203 #if false // FIXME: enable it, once duplex callback test gets passed.
 204                         Stream stream = ctxi.Request.InputStream;
 205                         if (source.Source.TransferMode == TransferMode.Buffered) {
 206                                 if (ctxi.Request.ContentLength64 <= 0)
 207                                         throw new ArgumentException ("This HTTP channel is configured to use buffered mode, and thus expects Content-Length sent to the listener");
 208                                 long size = 0;
 209                                 var ms = new MemoryStream ();
 210                                 var buf = new byte [0x1000];
 211                                 while (size < ctxi.Request.ContentLength64) {
 212                                         if ((size += stream.Read (buf, 0, 0x1000)) > source.Source.MaxBufferSize)
 213                                                 throw new QuotaExceededException ("Message quota exceeded");
 214                                         ms.Write (buf, 0, (int) (size - ms.Length));
 215                                 }
 216                                 ms.Position = 0;
 217                                 stream = ms;
 218                         }
 219
 220                         var msg = Encoder.ReadMessage (
 221                                 stream, maxSizeOfHeaders, ctxi.Request.ContentType);
 222 #else
 223                         var msg = Encoder.ReadMessage (
 224                                 ctxi.Request.InputStream, maxSizeOfHeaders, ctxi.Request.ContentType);
 225 #endif
 226
 227                         if (MessageVersion.Envelope.Equals (EnvelopeVersion.Soap11) ||
 228                             MessageVersion.Addressing.Equals (AddressingVersion.None)) {
 229                                 string action = GetHeaderItem (ctxi.Request.Headers ["SOAPAction"]);
 230                                 if (action != null) {
 231                                         if (action.Length > 2 && action [0] == '"' && action [action.Length] == '"')
 232                                                 action = action.Substring (1, action.Length - 2);
 233                                         msg.Headers.Action = action;
 234                                 }
 235                         }
 236
 237                         return msg;
 238                 }
 239
 240                 public override bool WaitForRequest (TimeSpan timeout)
 241                 {
 242                         throw new NotImplementedException ();
 243                 }
 244         }
 245 }