class/System.ServiceModel/System.ServiceModel.Channels/SecurityRequestChannel.cs

   1 //
   2 // SecurityRequestChannel.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;
  30 using System.Collections.Generic;
  31 using System.Collections.ObjectModel;
  32 using System.IdentityModel.Selectors;
  33 using System.IdentityModel.Tokens;
  34 using System.Runtime.Serialization;
  35 using System.Security.Cryptography;
  36 using System.Security.Cryptography.X509Certificates;
  37 using System.Security.Cryptography.Xml;
  38 using System.ServiceModel;
  39 using System.ServiceModel.Channels;
  40 using System.ServiceModel.Description;
  41 using System.ServiceModel.Security;
  42 using System.ServiceModel.Security.Tokens;
  43 using System.Xml;
  44 using System.Xml.XPath;
  45
  46 using ReqType = System.ServiceModel.Security.Tokens.ServiceModelSecurityTokenRequirement;
  47
  48 namespace System.ServiceModel.Channels
  49 {
  50         interface ISecurityChannelSource
  51         {
  52                 MessageSecurityBindingSupport Support { get; }
  53         }
  54
  55         class SecurityRequestChannel : SecurityRequestChannelBase
  56         {
  57                 SecurityChannelFactory<IRequestChannel> source;
  58
  59                 public SecurityRequestChannel (IRequestChannel innerChannel, SecurityChannelFactory<IRequestChannel> source)
  60                         : base (innerChannel)
  61                 {
  62                         this.source = source;
  63                         InitializeSecurityFunctionality (source.SecuritySupport);
  64                 }
  65
  66                 public override ChannelFactoryBase Factory {
  67                         get { return source; }
  68                 }
  69         }
  70
  71         class SecurityRequestSessionChannel : SecurityRequestChannelBase
  72         {
  73                 SecurityChannelFactory<IRequestSessionChannel> source;
  74
  75                 public SecurityRequestSessionChannel (IRequestSessionChannel innerChannel, SecurityChannelFactory<IRequestSessionChannel> source)
  76                         : base (innerChannel)
  77                 {
  78                         this.source = source;
  79                         InitializeSecurityFunctionality (source.SecuritySupport);
  80                 }
  81
  82                 public override ChannelFactoryBase Factory {
  83                         get { return source; }
  84                 }
  85         }
  86
  87         abstract class SecurityRequestChannelBase : LayeredRequestChannel
  88         {
  89                 InitiatorMessageSecurityBindingSupport security;
  90
  91                 protected SecurityRequestChannelBase (IRequestChannel innerChannel)
  92                         : base (innerChannel)
  93                 {
  94                         Opened += new EventHandler (AcquireSecurityKey);
  95                         Closing += new EventHandler (ReleaseSecurityKey);
  96                 }
  97
  98                 protected void InitializeSecurityFunctionality (InitiatorMessageSecurityBindingSupport security)
  99                 {
 100                         this.security = security;
 101                 }
 102
 103                 SecurityMessageProperty secprop;
 104
 105                 protected override IAsyncResult OnBeginRequest (Message message, TimeSpan timeout, AsyncCallback callback, object state)
 106                 {
 107                         // FIXME: make it really async
 108                         Message secure = SecureMessage (message);
 109                         secprop = secure.Properties.Security;
 110                         return base.BeginRequest (secure, timeout, callback, state);
 111                 }
 112
 113                 protected override Message OnEndRequest (IAsyncResult result)
 114                 {
 115                         // FIXME: it must be also asynchronized.
 116                         Message raw = base.EndRequest (result);
 117                         return ProcessReply (raw, secprop);
 118                 }
 119
 120                 protected override Message OnRequest (Message message, TimeSpan timeout)
 121                 {
 122                         Message secure = SecureMessage (message);
 123                         Message raw = base.OnRequest (secure, timeout);
 124                         return ProcessReply (raw, secure.Properties.Security);
 125                 }
 126
 127                 Message SecureMessage (Message msg)
 128                 {
 129                         return new InitiatorMessageSecurityGenerator (msg, security, RemoteAddress).SecureMessage ();
 130                 }
 131
 132                 Message ProcessReply (Message message, SecurityMessageProperty secprop)
 133                 {
 134                         // FIXME: provide correct parameters
 135                         return new InitiatorSecureMessageDecryptor (message, secprop, security).DecryptMessage ();
 136                 }
 137
 138                 void AcquireSecurityKey (object o, EventArgs e)
 139                 {
 140                         security.Prepare (Factory, RemoteAddress);
 141                 }
 142
 143                 void ReleaseSecurityKey (object o, EventArgs e)
 144                 {
 145                         security.Release ();
 146                 }
 147         }
 148 }