private async Task ProcessNegotiate(HttpContext context, HttpConnectionDispatcherOptions options, ConnectionLogScope logScope)
{
context.Response.ContentType = "application/json";
// Establish the connection
var connection = CreateConnection(options);
// 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;
// Don't use thread static instance here because writer is used with async
var writer = new MemoryBufferWriter();
try
{
// Get the bytes for the connection id
WriteNegotiatePayload(writer, connection.ConnectionId, context, options);
Log.NegotiationRequest(_logger);
// Write it out to the response with the right content length
context.Response.ContentLength = writer.Length;
await writer.CopyToAsync(context.Response.Body);
}
finally
{
writer.Reset();
}
}
public void ResetResetsTheMemoryBufferWriter()
{
var bufferWriter = new MemoryBufferWriter();
bufferWriter.WriteByte(1);
Assert.Equal(1, bufferWriter.Length);
bufferWriter.Reset();
Assert.Equal(0, bufferWriter.Length);
}
public Task WriteResponse_MemoryBufferWriter()
{
var writer = new MemoryBufferWriter();
try
{
NegotiateProtocol.WriteResponse(_negotiateResponse, writer);
return(writer.CopyToAsync(_stream));
}
finally
{
writer.Reset();
}
}
private async Task ProcessNegotiate(HttpContext context, HttpConnectionDispatcherOptions options, ConnectionLogScope logScope)
{
context.Response.ContentType = "application/json";
string error = null;
int clientProtocolVersion = 0;
if (context.Request.Query.TryGetValue("NegotiateVersion", out var queryStringVersion))
{
// Set the negotiate response to the protocol we use.
var queryStringVersionValue = queryStringVersion.ToString();
if (!int.TryParse(queryStringVersionValue, out clientProtocolVersion))
{
error = $"The client requested an invalid protocol version '{queryStringVersionValue}'";
Log.InvalidNegotiateProtocolVersion(_logger, queryStringVersionValue);
}
}
// Establish the connection
HttpConnectionContext connection = null;
if (error == null)
{
connection = CreateConnection(options, clientProtocolVersion);
}
// 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;
// Don't use thread static instance here because writer is used with async
var writer = new MemoryBufferWriter();
try
{
// Get the bytes for the connection id
WriteNegotiatePayload(writer, connection?.ConnectionId, connection?.ConnectionToken, context, options, clientProtocolVersion, error);
Log.NegotiationRequest(_logger);
// Write it out to the response with the right content length
context.Response.ContentLength = writer.Length;
await writer.CopyToAsync(context.Response.Body);
}
finally
{
writer.Reset();
}
}