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// <copyright>
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
namespace System.ServiceModel.Channels
{
using System;
using System.Net.Http;
using System.Net.WebSockets;
using System.Runtime;
using System.ServiceModel.Diagnostics.Application;
using System.ServiceModel.Security;
using System.Threading;
class ServerWebSocketTransportDuplexSessionChannel : WebSocketTransportDuplexSessionChannel
{
WebSocketContext webSocketContext;
HttpRequestContext httpRequestContext;
HttpPipeline httpPipeline;
HttpResponseMessage httpResponseMessage;
string subProtocol;
WebSocketMessageSource webSocketMessageSource;
SessionOpenNotification sessionOpenNotification;
public ServerWebSocketTransportDuplexSessionChannel(
HttpChannelListener channelListener,
EndpointAddress localAddress,
Uri localVia,
ConnectionBufferPool bufferPool,
HttpRequestContext httpRequestContext,
HttpPipeline httpPipeline,
HttpResponseMessage httpResponseMessage,
string subProtocol)
: base(channelListener, localAddress, localVia, bufferPool)
{
this.httpRequestContext = httpRequestContext;
this.httpPipeline = httpPipeline;
this.httpResponseMessage = httpResponseMessage;
this.subProtocol = subProtocol;
}
protected override bool IsStreamedOutput
{
get { return TransferModeHelper.IsResponseStreamed(this.TransferMode); }
}
public override T GetProperty<T>()
{
if (typeof(T) == typeof(SessionOpenNotification))
{
if (this.sessionOpenNotification == null)
{
this.sessionOpenNotification = new SessionOpenNotificationHelper(this);
}
return (T)(object)this.sessionOpenNotification;
}
return base.GetProperty<T>();
}
internal void SetWebSocketInfo(WebSocketContext webSocketContext, RemoteEndpointMessageProperty remoteEndpointMessageProperty, SecurityMessageProperty handshakeSecurityMessageProperty, byte[] innerBuffer, bool shouldDisposeWebSocketAfterClosed, HttpRequestMessage requestMessage)
{
Fx.Assert(webSocketContext != null, "webSocketContext should not be null.");
this.ShouldDisposeWebSocketAfterClosed = shouldDisposeWebSocketAfterClosed;
this.webSocketContext = webSocketContext;
this.WebSocket = webSocketContext.WebSocket;
this.InternalBuffer = innerBuffer;
if (handshakeSecurityMessageProperty != null)
{
this.RemoteSecurity = handshakeSecurityMessageProperty;
}
bool inputUseStreaming = TransferModeHelper.IsRequestStreamed(this.TransferMode);
this.webSocketMessageSource = new WebSocketMessageSource(
this,
this.webSocketContext,
inputUseStreaming,
remoteEndpointMessageProperty,
this,
requestMessage);
this.SetMessageSource(this.webSocketMessageSource);
}
protected override void OnClosed()
{
base.OnClosed();
((IDisposable)this.httpRequestContext).Dispose();
}
protected override void OnOpen(TimeSpan timeout)
{
if (TD.WebSocketConnectionAcceptStartIsEnabled())
{
TD.WebSocketConnectionAcceptStart(this.httpRequestContext.EventTraceActivity);
}
this.httpRequestContext.AcceptWebSocket(this.httpResponseMessage, this.subProtocol, timeout);
if (TD.WebSocketConnectionAcceptedIsEnabled())
{
TD.WebSocketConnectionAccepted(
this.httpRequestContext.EventTraceActivity,
this.WebSocket != null ? this.WebSocket.GetHashCode() : -1);
}
}
protected override IAsyncResult OnBeginOpen(TimeSpan timeout, AsyncCallback callback, object state)
{
if (TD.WebSocketConnectionAcceptStartIsEnabled())
{
TD.WebSocketConnectionAcceptStart(this.httpRequestContext.EventTraceActivity);
}
return this.httpRequestContext.BeginAcceptWebSocket(this.httpResponseMessage, this.subProtocol, callback, state);
}
protected override void OnEndOpen(IAsyncResult result)
{
this.httpRequestContext.EndAcceptWebSocket(result);
if (TD.WebSocketConnectionAcceptedIsEnabled())
{
TD.WebSocketConnectionAccepted(
this.httpRequestContext.EventTraceActivity,
this.WebSocket != null ? this.WebSocket.GetHashCode() : -1);
}
}
protected override void OnOpened()
{
base.OnOpened();
// We don't need the HttpPipeline any more once the HTTP handshake is finished.
// Close it to release the CancellationTokenSource and other possible resources.
this.httpPipeline.Close();
}
class SessionOpenNotificationHelper : SessionOpenNotification
{
readonly ServerWebSocketTransportDuplexSessionChannel channel;
public SessionOpenNotificationHelper(ServerWebSocketTransportDuplexSessionChannel channel)
{
this.channel = channel;
}
public override bool IsEnabled
{
get
{
return this.channel.WebSocketSettings.CreateNotificationOnConnection;
}
}
public override void UpdateMessageProperties(MessageProperties inboundMessageProperties)
{
this.channel.webSocketMessageSource.UpdateOpenNotificationMessageProperties(inboundMessageProperties);
}
}
}
}
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