* Add support for timing out poll requests
- Default poll request is 110 seconds (like in previous versions of SignalR)
- Use 200 with a 0 content length for timeouts.
- Added support for not timing out while debugging
* Merge transport and hub protocols
- This change merges the transport and hub protocols into a single protocol. The
idea being that sockets in a purely streaming layer that sends frames from the underlying
transport. This makes things like TCP possible and doesn't impose a framing layer at the lowest
level. This will make it possible to build servers like kestrel on top of the TCP layer.
- The Message was removed from the lowest layer of the stack and pushed into the hubs layer. Hub invocations
are framed with what was before the transport protocol. Connections also need to state upfront if they support
binary or not. This will determine how data will be serialized to the specific connection.
- Changed the SSE parser and writer to be strictly SSE without any of the transport protocol specific
information.
- To ensure we aren't using types in the wrong layers
- Moved protocol logic into SignalR
- Socket.Abstractions is now the root of the universe, Sockets.Common will likely be removed
or turned into Sockets.Common.Http.
- Move SSE parser to Sockets.Client and SSE writer into Sockets.Http
- Moved tests into the appropriate test projects
- Updated the spec
* Remove the RequestId from DefaultConnectionContext
- Added a GetHttpContext() extension method on ConnectionContext
- Also fixed an issue not setting LastSeenUtc
- Preventing from closing long polling transport with 204 in case of
error
- Reporting an error to the client if WebSocket was not closed normally
Note in case of ServerSentEvents it is not possible on the client to
tell the difference between when the server closed event stream due to
an exception or because the client left OnConnectedAsync. In both cases
the client sees only that the stream was closed.
Part of: #163
Exceptions thrown when sending or receiving messages would leave the
WebSockets transport in a half-closed state when one of the loops is
closed but the other one is still running preventing from the
Connection.Closed event to be fired.
Fixes: #412
Mikael Mengistu
Nate McMaster
David Fowler
BrennanConroy
Pavel Krymets
Pawel Kadluczka
Ryan Brandenburg
Kiran Challa
Pranav K
Andrew Stanton-Nurse
John Luo
Hao Kung