* Decouple connection objects from the server (#2535)
- Making progress towards being able to use the connection objects on the client side.
* Wait for input writer to complete before calling OnConnectionClosed (#2566)
* Wait for the ConnectionClosed token to stop tracking connections (#2574)
- The prior strategy of waiting for the pipe completed callbacks doesn't work
because blocks are returned to the memory pool after the callbacks are fired.
* Consistently handle connection resets (#2547)
* Provide better connection abort exceptions and logs
* void IConnectionDispatcher.OnConnection
- The prior strategy of waiting for the pipe completed callbacks doesn't work
because blocks are returned to the memory pool after the callbacks are fired.
- This normalizes the behavior for kestrel no matter what memory pool implementation is used. The transports should behave the same (ask for 1/2 full blocks) across pool implementations.
- Declare the minimum segment size in KestrelMemoryPool
- Updated the AdaptedPipeline to use MinimumSegmentSize / 2
* Renames from API review
- Rename Microsoft.AspNetCore.Protocols.Abstractions to Microsoft.AspNetCore.Connections.Abstractions.
- Renamed IConnectionHandler to IConnectionDispatcher (and related properties and types)
- Added ConnectionHandler and UseConnectionHandler extension method to Connections.Abstractions.
- Use ActivatorUtilties to create the ConnectionHandler
- Use the pipe events and removed the Tasks from ConnectionContext
- Remove OnConnectionClosed from FrameConnection. Since the `FrameConnetion` is a single middleware, not the entire pipeline, we shouldn't need to wait on the connection close there.
- It seems like the callbacks are rooted on the pipe even after they fire. This needs to be investigated in pipelines.
* Added initial connection middleware pipeline
- Implemented IConnectionBuilder on ListenOptions. Kept IConnectionAdapter for now.
- Delay the configure callback for ListenOptions until the server has started.
- Added ConnectionLimitMiddleware and HttpConnectionMiddleware
- Expose ConnectionAborted and ConnectionClosed on ConnectionContext and
IConnectionTransportFeature
- Updated the tests
- Removed IConnectionApplicationFeature
- Moved Application to IConnectionTransportFeature
PackageLineup is a way to manage PackageReference versions across large projects. It removes the version information from the repository and instead pulls the information from an external "lineup" file.
What works:
- HTTP/2 over TLS1.2 with ALPN
- Request and response flow
- Headers are compressed and decompressed with HPACK
- Request body can be read by streams (if present)
- MVC template app with individual auth works fine
- PRIORITY frames are validated
- RST_STREAM frames are validated and abort streams
- SETTINGS frames are validated and ACKed
- PING frames are validated and ACKed
- GOAWAY frames stop connections
- WINDOW_UPDATE frames are validated
- CONTINUATION frames are sent for large header blocks
What doesn't work yet:
- Flow control in either direction
- It's not possible to encode a single header across more than one frame
- Affects only a very large header (name and value combined ~16KB long)
- Request trailers
- Response trailers
- Limits and timeouts in `KestrelServerLimits` are not enforced on HTTP/2
- HPACK use is very limited on the send side
- Literals are not Huffman-encoded
- Common headers (e.g. "server: Kestrel") are never indexed
- Honoring client settings
- Some error checking is still missing (e.g. validating incoming frame size)
- Added Protocols.Abstractions
- IConnectionHandler.OnConnection takes an IFeatureCollection instead of
IConnectionInfo
- Removed IConnectionContext and IConnectionInformation replaced with
IConnectionTransportFeature
- Updated FrameConnectionContext and FrameContext to have the relevant
state instead of flowing the ConnectionInformation.
- Updated tests
Stephen Halter
Chris Ross (ASP.NET)
David Fowler
Pavel Krymets
Andrei Amialchenia
John Luo
Ryan Brandenburg
Ben Adams
Mike Harder
BrennanConroy
Nate McMaster
Andrew Stanton-Nurse
Javier Calvarro Nelson
Cesar Blum Silveira