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//----------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
namespace System.ServiceModel.Security
{
using System.Runtime;
using System.ServiceModel.Channels;
abstract class SecurityChannel<TChannel> :
LayeredChannel<TChannel>
where TChannel : class, IChannel
{
SecurityProtocol securityProtocol;
protected SecurityChannel(ChannelManagerBase channelManager, TChannel innerChannel)
: this(channelManager, innerChannel, null)
{
}
protected SecurityChannel(ChannelManagerBase channelManager, TChannel innerChannel, SecurityProtocol securityProtocol)
: base(channelManager, innerChannel)
{
this.securityProtocol = securityProtocol;
}
public override T GetProperty<T>()
{
if (typeof(T) == typeof(FaultConverter))
{
return new SecurityChannelFaultConverter(this.InnerChannel) as T;
}
return base.GetProperty<T>();
}
public SecurityProtocol SecurityProtocol
{
get
{
return this.securityProtocol;
}
protected set
{
if (value == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new ArgumentNullException("value"));
}
this.securityProtocol = value;
}
}
protected override void OnAbort()
{
if (this.securityProtocol != null)
{
this.securityProtocol.Close(true, TimeSpan.Zero);
}
base.OnAbort();
}
protected override IAsyncResult OnBeginClose(TimeSpan timeout, AsyncCallback callback, object state)
{
return new ChainedAsyncResult(timeout, callback, state, this.BeginCloseSecurityProtocol, this.EndCloseSecurityProtocol,
base.OnBeginClose, base.OnEndClose);
}
protected override void OnEndClose(IAsyncResult result)
{
ChainedAsyncResult.End(result);
}
IAsyncResult BeginCloseSecurityProtocol(TimeSpan timeout, AsyncCallback callback, object state)
{
if (this.securityProtocol != null)
{
return this.securityProtocol.BeginClose(timeout, callback, state);
}
else
{
return new NullSecurityProtocolCloseAsyncResult(callback, state);
}
}
void EndCloseSecurityProtocol(IAsyncResult result)
{
if (result is NullSecurityProtocolCloseAsyncResult)
{
NullSecurityProtocolCloseAsyncResult.End(result);
}
else
{
this.securityProtocol.EndClose(result);
}
}
protected override void OnClose(TimeSpan timeout)
{
TimeoutHelper timeoutHelper = new TimeoutHelper(timeout);
if (this.securityProtocol != null)
{
this.securityProtocol.Close(false, timeoutHelper.RemainingTime());
}
base.OnClose(timeoutHelper.RemainingTime());
}
protected void ThrowIfDisposedOrNotOpen(Message message)
{
ThrowIfDisposedOrNotOpen();
if (message == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("message");
}
}
class NullSecurityProtocolCloseAsyncResult : CompletedAsyncResult
{
public NullSecurityProtocolCloseAsyncResult(AsyncCallback callback, object state)
: base(callback, state)
{
}
new public static void End(IAsyncResult result)
{
AsyncResult.End<NullSecurityProtocolCloseAsyncResult>(result);
}
}
protected sealed class OutputChannelSendAsyncResult : ApplySecurityAndSendAsyncResult<IOutputChannel>
{
public OutputChannelSendAsyncResult(Message message, SecurityProtocol binding, IOutputChannel channel, TimeSpan timeout,
AsyncCallback callback, object state)
: base(binding, channel, timeout, callback, state)
{
this.Begin(message, null);
}
protected override IAsyncResult BeginSendCore(IOutputChannel channel, Message message, TimeSpan timeout, AsyncCallback callback, object state)
{
return channel.BeginSend(message, timeout, callback, state);
}
internal static void End(IAsyncResult result)
{
OutputChannelSendAsyncResult self = result as OutputChannelSendAsyncResult;
OnEnd(self);
}
protected override void EndSendCore(IOutputChannel channel, IAsyncResult result)
{
channel.EndSend(result);
}
protected override void OnSendCompleteCore(TimeSpan timeout)
{
}
}
}
}
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