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

   1 //
   2 // SecurityRequestContext.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto <atsushi@ximian.com>
   6 //
   7 // Copyright (C) 2005-2007 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.Collections.Generic;
  29 using System.Collections.ObjectModel;
  30 using System.IO;
  31 using System.Net.Security;
  32 using System.IdentityModel.Selectors;
  33 using System.IdentityModel.Tokens;
  34 using System.Security.Cryptography;
  35 using System.Security.Cryptography.X509Certificates;
  36 using System.Security.Cryptography.Xml;
  37 using System.ServiceModel;
  38 using System.ServiceModel.Description;
  39 using System.ServiceModel.Security;
  40 using System.ServiceModel.Security.Tokens;
  41 using System.Xml;
  42 using System.Xml.XPath;
  43
  44 namespace System.ServiceModel.Channels
  45 {
  46         internal class SecurityRequestContext : RequestContext
  47         {
  48                 RecipientMessageSecurityBindingSupport security;
  49                 SecurityReplyChannel channel;
  50                 RequestContext source;
  51                 Message msg;
  52                 MessageBuffer source_request;
  53
  54                 public SecurityRequestContext (SecurityReplyChannel channel, RequestContext source)
  55                 {
  56                         this.source = source;
  57                         this.channel = channel;
  58
  59                         security = channel.Source.SecuritySupport;
  60                 }
  61
  62                 MessageBuffer SourceBuffer {
  63                         get {
  64                                 if (source_request == null)
  65                                         source_request = source.RequestMessage.CreateBufferedCopy (0x10000);
  66                                 return source_request;
  67                         }
  68                 }
  69
  70                 public override Message RequestMessage {
  71                         get {
  72                                 if (msg == null) {
  73                                         msg = SourceBuffer.CreateMessage (); // default
  74                                         switch (msg.Headers.Action) {
  75                                         case Constants.WstIssueAction:
  76                                         case Constants.WstIssueReplyAction:
  77                                         case Constants.WstRenewAction:
  78                                         case Constants.WstCancelAction:
  79                                         case Constants.WstValidateAction:
  80                                                 break;
  81                                         default:
  82                                                 msg = new RecipientSecureMessageDecryptor (msg, security).DecryptMessage ();
  83                                                 break;
  84                                         }
  85                                 }
  86                                 return msg;
  87                         }
  88                 }
  89
  90                 public override void Abort ()
  91                 {
  92                         source.Abort ();
  93                 }
  94
  95                 public override IAsyncResult BeginReply (Message message, AsyncCallback callback, object state)
  96                 {
  97                         return BeginReply (message, channel.Listener.DefaultSendTimeout, callback, state);
  98                 }
  99
 100                 public override IAsyncResult BeginReply (Message message, TimeSpan timeout, AsyncCallback callback, object state)
 101                 {
 102                         // FIXME: implement
 103                         throw new NotImplementedException ();
 104                 }
 105
 106                 public override void Close ()
 107                 {
 108                         Close (channel.Listener.DefaultCloseTimeout);
 109                 }
 110
 111                 public override void Close (TimeSpan timeout)
 112                 {
 113                         source.Close (timeout);
 114                 }
 115
 116                 public override void EndReply (IAsyncResult result)
 117                 {
 118                         // FIXME: implement
 119                         throw new NotImplementedException ();
 120                 }
 121
 122                 public override void Reply (Message message)
 123                 {
 124                         Reply (message, channel.Listener.DefaultSendTimeout);
 125                 }
 126
 127                 public override void Reply (Message message, TimeSpan timeout)
 128                 {
 129                         try {
 130                                 if (!message.IsFault && message.Headers.Action != Constants.WstIssueReplyAction)
 131                                         message = SecureMessage (message);
 132                                 source.Reply (message, timeout);
 133                         } catch (Exception ex) {
 134                                 FaultConverter fc = FaultConverter.GetDefaultFaultConverter (msg.Version);
 135                                 Message fault;
 136                                 if (fc.TryCreateFaultMessage (ex, out fault))
 137                                         source.Reply (fault, timeout);
 138                                 else
 139                                         throw;
 140                         }
 141                 }
 142
 143                 Message SecureMessage (Message input)
 144                 {
 145                         return new RecipientMessageSecurityGenerator (input, this, security).SecureMessage ();
 146                 }
 147         }
 148 }