SecurityRequestContext.cs :  » 2.6.4-mono-.net-core » System.ServiceModel » System » ServiceModel » Channels » C# / CSharp Open Source

//
// SecurityRequestContext.cs
//
// Author:
//  Atsushi Enomoto <atsushi@ximian.com>
//
// Copyright (C) 2005-2007 Novell, Inc.  http://www.novell.com
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.IO;
using System.Net.Security;
using System.IdentityModel.Selectors;
using System.IdentityModel.Tokens;
using System.Security.Cryptography;
using System.Security.Cryptography.X509Certificates;
using System.Security.Cryptography.Xml;
using System.ServiceModel;
using System.ServiceModel.Description;
using System.ServiceModel.Security;
using System.ServiceModel.Security.Tokens;
using System.Xml;
using System.Xml.XPath;

namespace System.ServiceModel.Channels{
  internal class SecurityRequestContext : RequestContext
  {
    RecipientMessageSecurityBindingSupport security;
    SecurityReplyChannel channel;
    RequestContext source;
    Message msg;
    MessageBuffer source_request;

    public SecurityRequestContext (SecurityReplyChannel channel, RequestContext source)
    {
      this.source = source;
      this.channel = channel;

      security = channel.Source.SecuritySupport;
    }

    MessageBuffer SourceBuffer {
      get {
        if (source_request == null)
          source_request = source.RequestMessage.CreateBufferedCopy (0x10000);
        return source_request;
      }
    }

    public override Message RequestMessage {
      get {
        if (msg == null) {
          msg = SourceBuffer.CreateMessage (); // default
          switch (msg.Headers.Action) {
          case Constants.WstIssueAction:
          case Constants.WstIssueReplyAction:
          case Constants.WstRenewAction:
          case Constants.WstCancelAction:
          case Constants.WstValidateAction:
            break;
          default:
            msg = new RecipientSecureMessageDecryptor (msg, security).DecryptMessage ();
            break;
          }
        }
        return msg;
      }
    }

    public override void Abort ()
    {
      source.Abort ();
    }

    public override IAsyncResult BeginReply (Message message, AsyncCallback callback, object state)
    {
      return BeginReply (message, channel.Listener.DefaultSendTimeout, callback, state);
    }

    public override IAsyncResult BeginReply (Message message, TimeSpan timeout, AsyncCallback callback, object state)
    {
      // FIXME: implement
      throw new NotImplementedException ();
    }

    public override void Close ()
    {
      Close (channel.Listener.DefaultCloseTimeout);
    }

    public override void Close (TimeSpan timeout)
    {
      source.Close (timeout);
    }

    public override void EndReply (IAsyncResult result)
    {
      // FIXME: implement
      throw new NotImplementedException ();
    }

    public override void Reply (Message message)
    {
      Reply (message, channel.Listener.DefaultSendTimeout);
    }

    public override void Reply (Message message, TimeSpan timeout)
    {
      try {
        if (!message.IsFault && message.Headers.Action != Constants.WstIssueReplyAction)
          message = SecureMessage (message);
        source.Reply (message, timeout);
      } catch (Exception ex) {
        FaultConverter fc = FaultConverter.GetDefaultFaultConverter (msg.Version);
        Message fault;
        if (fc.TryCreateFaultMessage (ex, out fault))
          source.Reply (fault, timeout);
        else
          throw;
      }
    }

    Message SecureMessage (Message input)
    {
      return new RecipientMessageSecurityGenerator (input, this, security).SecureMessage ();
    }
  }
}