/// <summary>
/// Establishes a new send-side HybridConnection and returns the Stream.
/// </summary>
public async Task <HybridConnectionStream> CreateConnectionAsync()
{
TrackingContext trackingContext = CreateTrackingContext(this.Address);
string traceSource = nameof(HybridConnectionClient) + "(" + trackingContext.ToString() + ")";
var timeoutHelper = new TimeoutHelper(this.OperationTimeout);
RelayEventSource.Log.RelayClientConnectStart(traceSource);
try
{
var webSocket = new ClientWebSocket();
webSocket.Options.Proxy = this.Proxy;
webSocket.Options.KeepAliveInterval = HybridConnectionConstants.KeepAliveInterval;
webSocket.Options.SetBuffer(this.ConnectionBufferSize, this.ConnectionBufferSize);
if (this.TokenProvider != null)
{
RelayEventSource.Log.GetTokenStart(traceSource);
string audience = this.Address.GetComponents(UriComponents.SchemeAndServer | UriComponents.Path, UriFormat.UriEscaped);
var token = await this.TokenProvider.GetTokenAsync(audience, TokenProvider.DefaultTokenTimeout).ConfigureAwait(false);
RelayEventSource.Log.GetTokenStop(token.ExpiresAtUtc);
webSocket.Options.SetRequestHeader(RelayConstants.ServiceBusAuthorizationHeaderName, token.TokenString);
}
// Build the websocket uri, e.g. "wss://contoso.servicebus.windows.net:443/$hc/endpoint1?sb-hc-action=connect&sb-hc-id=E2E_TRACKING_ID"
Uri webSocketUri = HybridConnectionUtility.BuildUri(
this.Address.Host,
this.Address.Port,
this.Address.AbsolutePath,
this.Address.Query,
HybridConnectionConstants.Actions.Connect,
trackingContext.TrackingId);
using (var cancelSource = new CancellationTokenSource(timeoutHelper.RemainingTime()))
{
await webSocket.ConnectAsync(webSocketUri, cancelSource.Token).ConfigureAwait(false);
}
#if NET45 // TODO: Flow Response Headers in NETSTANDARD ClientWebSocket
var trackingId = webSocket.ResponseHeaders[TrackingContext.TrackingIdName];
if (!string.IsNullOrEmpty(trackingId))
{
// Update to the flown trackingId (which has _GX suffix)
trackingContext = TrackingContext.Create(trackingId, trackingContext.SubsystemId);
traceSource = nameof(HybridConnectionClient) + "(" + trackingContext.ToString() + ")";
}
#endif
return(new WebSocketStream(webSocket, trackingContext));
}
catch (WebSocketException wsException)
{
throw RelayEventSource.Log.ThrowingException(WebSocketExceptionHelper.ConvertToRelayContract(wsException), traceSource);
}
finally
{
RelayEventSource.Log.RelayClientConnectStop();
}
}
public void HybridHttpRequestStarting(TrackingContext trackingContext)
{
if (this.IsEnabled(EventLevel.Informational, EventKeywords.None))
{
SetCurrentThreadActivityId(trackingContext);
this.HybridHttpRequestStarting(trackingContext?.ToString() ?? string.Empty);
}
}
public void RelayListenerRendezvousRejected(TrackingContext trackingContext, HttpStatusCode statusCode, string statusDescription)
{
if (this.IsEnabled())
{
SetCurrentThreadActivityId(trackingContext);
this.RelayListenerRendezvousRejected(trackingContext.ToString(), (int)statusCode, statusDescription);
}
}