private async Task <bool> EnsureConnectionStateAsync(DefaultConnectionContext connection, HttpContext context, TransportType transportType, TransportType supportedTransports, ConnectionLogScope logScope, HttpSocketOptions options)
{
if ((supportedTransports & transportType) == 0)
{
context.Response.ContentType = "text/plain";
context.Response.StatusCode = StatusCodes.Status404NotFound;
_logger.TransportNotSupported(transportType);
await context.Response.WriteAsync($"{transportType} transport not supported by this end point type");
return(false);
}
// Set the IHttpConnectionFeature now that we can access it.
connection.Features.Set(context.Features.Get <IHttpConnectionFeature>());
var transport = (TransportType?)connection.Metadata[ConnectionMetadataNames.Transport];
if (transport == null)
{
connection.Metadata[ConnectionMetadataNames.Transport] = transportType;
}
else if (transport != transportType)
{
context.Response.ContentType = "text/plain";
context.Response.StatusCode = StatusCodes.Status400BadRequest;
_logger.CannotChangeTransport(transport.Value, transportType);
await context.Response.WriteAsync("Cannot change transports mid-connection");
return(false);
}
// Configure transport-specific features.
if (transportType == TransportType.LongPolling)
{
connection.Features.Set <IConnectionInherentKeepAliveFeature>(new ConnectionInherentKeepAliveFeature(options.LongPolling.PollTimeout));
}
// Setup the connection state from the http context
connection.User = context.User;
connection.SetHttpContext(context);
// this is the default setting which should be overwritten by transports that have different capabilities (e.g. SSE)
connection.TransportCapabilities = TransferMode.Binary | TransferMode.Text;
// Set the Connection ID on the logging scope so that logs from now on will have the
// Connection ID metadata set.
logScope.ConnectionId = connection.ConnectionId;
return(true);
}
private async Task <bool> EnsureConnectionStateAsync(DefaultConnectionContext connection, HttpContext context, TransportType transportType, TransportType supportedTransports, ConnectionLogScope logScope)
{
if ((supportedTransports & transportType) == 0)
{
context.Response.StatusCode = StatusCodes.Status404NotFound;
_logger.TransportNotSupported(connection.ConnectionId, transportType);
await context.Response.WriteAsync($"{transportType} transport not supported by this end point type");
return(false);
}
var transport = (TransportType?)connection.Metadata[ConnectionMetadataNames.Transport];
if (transport == null)
{
connection.Metadata[ConnectionMetadataNames.Transport] = transportType;
}
else if (transport != transportType)
{
context.Response.StatusCode = StatusCodes.Status400BadRequest;
_logger.CannotChangeTransport(connection.ConnectionId, transport.Value, transportType);
await context.Response.WriteAsync("Cannot change transports mid-connection");
return(false);
}
// Setup the connection state from the http context
connection.User = context.User;
connection.SetHttpContext(context);
// this is the default setting which should be overwritten by transports that have different capabilities (e.g. SSE)
connection.TransportCapabilities = TransferMode.Binary | TransferMode.Text;
// Set the Connection ID on the logging scope so that logs from now on will have the
// Connection ID metadata set.
logScope.ConnectionId = connection.ConnectionId;
return(true);
}