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                 internal HttpChannelListener<IReplyChannel> Source {
  61                         get { return source; }
  62                 }
  63
  64                 public MessageEncoder Encoder {
  65                         get { return source.MessageEncoder; }
  66                 }
  67
  68                 internal MessageVersion MessageVersion {
  69                         get { return source.MessageEncoder.MessageVersion; }
  70                 }
  71
  72                 public override RequestContext ReceiveRequest (TimeSpan timeout)
  73                 {
  74                         RequestContext ctx;
  75                         if (!TryReceiveRequest (timeout, out ctx))
  76                                 throw new TimeoutException ();
  77                         return ctx;
  78                 }
  79
  80                 protected override void OnOpen (TimeSpan timeout)
  81                 {
  82                 }
  83
  84                 protected override void OnAbort ()
  85                 {
  86                         AbortConnections (TimeSpan.Zero);
  87                         base.OnAbort (); // FIXME: remove it. The base is wrong. But it is somehow required to not block some tests.
  88                 }
  89
  90                 public override bool CancelAsync (TimeSpan timeout)
  91                 {
  92                         AbortConnections (timeout);
  93                         // FIXME: this wait is sort of hack (because it should not be required), but without it some tests are blocked.
  94                         // This hack even had better be moved to base.CancelAsync().
  95 //                      if (CurrentAsyncResult != null)
  96 //                              CurrentAsyncResult.AsyncWaitHandle.WaitOne (TimeSpan.FromMilliseconds (300));
  97                         return base.CancelAsync (timeout);
  98                 }
  99
 100                 void AbortConnections (TimeSpan timeout)
 101                 {
 102                         if (reqctx != null)
 103                                 reqctx.Close (timeout);
 104                 }
 105
 106                 bool close_started;
 107                 object close_lock = new object ();
 108
 109                 protected override void OnClose (TimeSpan timeout)
 110                 {
 111                         lock (close_lock) {
 112                                 if (close_started)
 113                                         return;
 114                                 close_started = true;
 115                         }
 116                         DateTime start = DateTime.UtcNow;
 117
 118                         // FIXME: consider timeout
 119                         AbortConnections (timeout - (DateTime.UtcNow - start));
 120
 121                         base.OnClose (timeout - (DateTime.UtcNow - start));
 122                 }
 123
 124                 protected string GetHeaderItem (string raw)
 125                 {
 126                         if (raw == null || raw.Length == 0)
 127                                 return raw;
 128                         switch (raw [0]) {
 129                         case '\'':
 130                         case '"':
 131                                 if (raw [raw.Length - 1] == raw [0])
 132                                         return raw.Substring (1, raw.Length - 2);
 133                                 // FIXME: is it simply an error?
 134                                 break;
 135                         }
 136                         return raw;
 137                 }
 138
 139                 protected HttpRequestMessageProperty CreateRequestProperty (HttpContextInfo ctxi)
 140                 {
 141                         var query = ctxi.Request.Url.Query;
 142                         var prop = new HttpRequestMessageProperty ();
 143                         prop.Method = ctxi.Request.HttpMethod;
 144                         prop.QueryString = query.StartsWith ("?") ? query.Substring (1) : query;
 145                         // FIXME: prop.SuppressEntityBody
 146                         prop.Headers.Add (ctxi.Request.Headers);
 147                         return prop;
 148                 }
 149
 150                 public override bool TryReceiveRequest (TimeSpan timeout, out RequestContext context)
 151                 {
 152                         context = null;
 153                         HttpContextInfo ctxi;
 154                         if (!source.ListenerManager.TryDequeueRequest (source.ChannelDispatcher, timeout, out ctxi))
 155                                 return false;
 156                         if (ctxi == null)
 157                                 return true; // returning true, yet context is null. This happens at closing phase.
 158
 159                         if (source.Source.AuthenticationScheme != AuthenticationSchemes.Anonymous) {
 160                                 if (security_token_authenticator != null)
 161                                         // FIXME: use return value?
 162                                         try {
 163                                                 security_token_authenticator.ValidateToken (new UserNameSecurityToken (ctxi.User, ctxi.Password));
 164                                         } catch (Exception) {
 165                                                 ctxi.ReturnUnauthorized ();
 166                                         }
 167                                 else {
 168                                         ctxi.ReturnUnauthorized ();
 169                                 }
 170                         }
 171
 172                         Message msg = null;
 173
 174                         if (ctxi.Request.HttpMethod == "POST")
 175                                 msg = CreatePostMessage (ctxi);
 176                         else if (ctxi.Request.HttpMethod == "GET")
 177                                 msg = Message.CreateMessage (MessageVersion.None, null); // HTTP GET-based request
 178
 179                         if (msg == null)
 180                                 return false;
 181
 182                         if (msg.Headers.To == null)
 183                                 msg.Headers.To = ctxi.Request.Url;
 184                         msg.Properties.Add ("Via", LocalAddress.Uri);
 185                         msg.Properties.Add (HttpRequestMessageProperty.Name, CreateRequestProperty (ctxi));
 186
 187                         Logger.LogMessage (MessageLogSourceKind.TransportReceive, ref msg, source.Source.MaxReceivedMessageSize);
 188
 189                         context = new HttpRequestContext (this, ctxi, msg);
 190                         reqctx = context;
 191                         return true;
 192                 }
 193
 194                 protected Message CreatePostMessage (HttpContextInfo ctxi)
 195                 {
 196                         if (ctxi.Response.StatusCode != 200) { // it's already invalid.
 197                                 ctxi.Close ();
 198                                 return null;
 199                         }
 200
 201                         if (!Encoder.IsContentTypeSupported (ctxi.Request.ContentType)) {
 202                                 ctxi.Response.StatusCode = (int) HttpStatusCode.UnsupportedMediaType;
 203                                 ctxi.Response.StatusDescription = String.Format (
 204                                                 "Expected content-type '{0}' but got '{1}'", Encoder.ContentType, ctxi.Request.ContentType);
 205                                 ctxi.Close ();
 206
 207                                 return null;
 208                         }
 209
 210                         // FIXME: supply maxSizeOfHeaders.
 211                         int maxSizeOfHeaders = 0x10000;
 212
 213 #if false // FIXME: enable it, once duplex callback test gets passed.
 214                         Stream stream = ctxi.Request.InputStream;
 215                         if (source.Source.TransferMode == TransferMode.Buffered) {
 216                                 if (ctxi.Request.ContentLength64 <= 0)
 217                                         throw new ArgumentException ("This HTTP channel is configured to use buffered mode, and thus expects Content-Length sent to the listener");
 218                                 long size = 0;
 219                                 var ms = new MemoryStream ();
 220                                 var buf = new byte [0x1000];
 221                                 while (size < ctxi.Request.ContentLength64) {
 222                                         if ((size += stream.Read (buf, 0, 0x1000)) > source.Source.MaxBufferSize)
 223                                                 throw new QuotaExceededException ("Message quota exceeded");
 224                                         ms.Write (buf, 0, (int) (size - ms.Length));
 225                                 }
 226                                 ms.Position = 0;
 227                                 stream = ms;
 228                         }
 229
 230                         var msg = Encoder.ReadMessage (
 231                                 stream, maxSizeOfHeaders, ctxi.Request.ContentType);
 232 #else
 233                         var msg = Encoder.ReadMessage (
 234                                 ctxi.Request.InputStream, maxSizeOfHeaders, ctxi.Request.ContentType);
 235 #endif
 236
 237                         if (MessageVersion.Envelope.Equals (EnvelopeVersion.Soap11) ||
 238                             MessageVersion.Addressing.Equals (AddressingVersion.None)) {
 239                                 string action = GetHeaderItem (ctxi.Request.Headers ["SOAPAction"]);
 240                                 if (action != null) {
 241                                         if (action.Length > 2 && action [0] == '"' && action [action.Length] == '"')
 242                                                 action = action.Substring (1, action.Length - 2);
 243                                         msg.Headers.Action = action;
 244                                 }
 245                         }
 246                         msg.Properties.Add (RemoteEndpointMessageProperty.Name, new RemoteEndpointMessageProperty (ctxi.Request.ClientIPAddress, ctxi.Request.ClientPort));
 247
 248                         return msg;
 249                 }
 250
 251                 public override bool WaitForRequest (TimeSpan timeout)
 252                 {
 253                         throw new NotImplementedException ();
 254                 }
 255         }
 256 }