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//
// SecurityRequestChannel.cs
//
// Author:
// Atsushi Enomoto <atsushi@ximian.com>
//
// Copyright (C) 2006 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;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.IdentityModel.Selectors;
using System.IdentityModel.Tokens;
using System.Runtime.Serialization;
using System.Security.Cryptography;
using System.Security.Cryptography.X509Certificates;
using System.Security.Cryptography.Xml;
using System.ServiceModel;
using System.ServiceModel.Channels;
using System.ServiceModel.Description;
using System.ServiceModel.Security;
using System.ServiceModel.Security.Tokens;
using System.Xml;
using System.Xml.XPath;
using ReqType = System.ServiceModel.Security.Tokens.ServiceModelSecurityTokenRequirement;
namespace System.ServiceModel.Channels.Security
{
interface ISecurityChannelSource
{
MessageSecurityBindingSupport Support { get; }
}
class SecurityRequestChannel : SecurityRequestChannelBase
{
SecurityChannelFactory<IRequestChannel> source;
public SecurityRequestChannel (IRequestChannel innerChannel, SecurityChannelFactory<IRequestChannel> source)
: base (innerChannel)
{
this.source = source;
InitializeSecurityFunctionality (source.SecuritySupport);
}
public override ChannelFactoryBase Factory {
get { return source; }
}
}
class SecurityRequestSessionChannel : SecurityRequestChannelBase
{
SecurityChannelFactory<IRequestSessionChannel> source;
public SecurityRequestSessionChannel (IRequestSessionChannel innerChannel, SecurityChannelFactory<IRequestSessionChannel> source)
: base (innerChannel)
{
this.source = source;
InitializeSecurityFunctionality (source.SecuritySupport);
}
public override ChannelFactoryBase Factory {
get { return source; }
}
}
abstract class SecurityRequestChannelBase : LayeredRequestChannel
{
InitiatorMessageSecurityBindingSupport security;
protected SecurityRequestChannelBase (IRequestChannel innerChannel)
: base (innerChannel)
{
Opened += new EventHandler (AcquireSecurityKey);
Closing += new EventHandler (ReleaseSecurityKey);
}
protected void InitializeSecurityFunctionality (InitiatorMessageSecurityBindingSupport security)
{
this.security = security;
}
SecurityMessageProperty secprop;
protected override IAsyncResult OnBeginRequest (Message message, TimeSpan timeout, AsyncCallback callback, object state)
{
// FIXME: make it really async
Message secure = SecureMessage (message);
secprop = secure.Properties.Security;
return base.BeginRequest (secure, timeout, callback, state);
}
protected override Message OnEndRequest (IAsyncResult result)
{
// FIXME: it must be also asynchronized.
Message raw = base.EndRequest (result);
return ProcessReply (raw, secprop);
}
protected override Message OnRequest (Message message, TimeSpan timeout)
{
Message secure = SecureMessage (message);
Message raw = base.OnRequest (secure, timeout);
return ProcessReply (raw, secure.Properties.Security);
}
Message SecureMessage (Message msg)
{
return new InitiatorMessageSecurityGenerator (msg, security, RemoteAddress).SecureMessage ();
}
Message ProcessReply (Message message, SecurityMessageProperty secprop)
{
// FIXME: provide correct parameters
return message.IsFault ? message : new InitiatorSecureMessageDecryptor (message, secprop, security).DecryptMessage ();
}
void AcquireSecurityKey (object o, EventArgs e)
{
security.Prepare (Factory, RemoteAddress);
}
void ReleaseSecurityKey (object o, EventArgs e)
{
security.Release ();
}
}
}
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