public async Task <AppConnectionDescriptor> AuthenticateAsync(ITransportConnection connection)
{
Log.Trace("Accepting new connection {0}", connection.Id);
var channel = await connection.IncomingChannels.ReadAsync().ConfigureAwait(false);
var frame = await channel.In.ReadAsync().ConfigureAwait(false);
using (var payload = frame.Payload)
using (var connectRequest = _serializer.DeserializeConnectRequest(payload))
{
if (!_registryService.IsApplicationDefined(connectRequest.ApplicationId))
{
throw new BrokerException($"Connection rejected because application id is unknown to broker: {connectRequest.ApplicationId}");
}
if (!_connectionTracker.IsAppInstanceRegistered(connectRequest.ApplicationInstanceId))
{
Log.Debug("Connection with unknown application instance id: "
+ $"ApplicationInstanceId={connectRequest.ApplicationInstanceId}, ApplicationId={connectRequest.ApplicationId}");
_connectionTracker.ReportConnectionError(new AppConnectionDescriptor(
UniqueId.Empty,
connectRequest.ApplicationId,
connectRequest.ApplicationInstanceId,
connection.TransportType));
if (_features.HasFlag(BrokerFeatures.CheckAppInstanceId))
{
throw new BrokerException("Connection rejected because application instance id is unknown to broker: "
+ $"ApplicationInstanceId={connectRequest.ApplicationInstanceId}, ApplicationId={connectRequest.ApplicationId}");
}
}
using (var connectResponse = _messageFactory.CreateConnectResponse(connection.Id))
{
var serializedResponse = _serializer.Serialize(connectResponse);
try
{
Log.Trace("Sending connect response ({0} bytes): {1}", connectResponse, serializedResponse.Count);
await channel.Out.WriteAsync(new TransportMessageFrame(serializedResponse)).ConfigureAwait(false);
}
catch
{
serializedResponse.Dispose();
throw;
}
channel.Out.TryComplete();
await channel.Completion.ConfigureAwait(false);
return(new AppConnectionDescriptor(
connectResponse.ConnectionId,
connectRequest.ApplicationId,
connectRequest.ApplicationInstanceId,
connection.TransportType));
}
}
}