sanic/sanic/server
Ashley Sommer f7abf3db1b
Some fixes to the new Websockets impl (#2248)
* First attempt at new Websockets implementation based on websockets >= 9.0, with sans-i/o features. Requires more work.

* Update sanic/websocket.py

Co-authored-by: Adam Hopkins <adam@amhopkins.com>

* Update sanic/websocket.py

Co-authored-by: Adam Hopkins <adam@amhopkins.com>

* Update sanic/websocket.py

Co-authored-by: Adam Hopkins <adam@amhopkins.com>

* wip, update websockets code to new Sans/IO API

* Refactored new websockets impl into own modules
Incorporated other suggestions made by team

* Another round of work on the new websockets impl
* Added websocket_timeout support (matching previous/legacy support)
* Lots more comments
* Incorporated suggested changes from previous round of review
* Changed RuntimeError usage to ServerError
* Changed SanicException usage to ServerError
* Removed some redundant asserts
* Change remaining asserts to ServerErrors
* Fixed some timeout handling issues
* Fixed websocket.close() handling, and made it more robust
* Made auto_close task smarter and more error-resilient
* Made fail_connection routine smarter and more error-resilient

* Further new websockets impl fixes
* Update compatibility with Websockets v10
* Track server connection state in a more precise way
* Try to handle the shutdown process more gracefully
* Add a new end_connection() helper, to use as an alterative to close() or fail_connection()
* Kill the auto-close task and keepalive-timeout task when sanic is shutdown
* Deprecate WEBSOCKET_READ_LIMIT and WEBSOCKET_WRITE_LIMIT configs, they are not used in this implementation.

* Change a warning message to debug level
Remove default values for deprecated websocket parameters

* Fix flake8 errors

* Fix a couple of missed failing tests

* remove websocket bench from examples

* Integrate suggestions from code reviews
Use Optional[T] instead of union[T,None]
Fix mypy type logic errors
change "is not None" to truthy checks where appropriate
change "is None" to falsy checks were appropriate
Add more debug logging when debug mode is on
Change to using sanic.logger for debug logging rather than error_logger.

* Fix long line lengths of debug messages
Add some new debug messages when websocket IO is paused and unpaused for flow control
Fix websocket example to use app.static()

* remove unused import in websocket example app

* re-run isort after Flake8 fixes

* Some fixes to the new Websockets impl
Will throw WebsocketClosed exception instead of ServerException now when attempting to read or write to closed websocket, this makes it easier to catch
The various ws.recv() methods now have the ability to raise CancelledError into your websocket handler
Fix a niche close-socket negotiation bug
Fix bug where http protocol thought the websocket never sent any response.
Allow data to still send in some cases after websocket enters CLOSING state.
Fix some badly formatted and badly placed comments

* allow eof_received to send back data too, if the connection is in CLOSING state

Co-authored-by: Adam Hopkins <adam@amhopkins.com>
Co-authored-by: Adam Hopkins <admhpkns@gmail.com>
2021-09-30 22:20:57 +03:00
..
protocols Some fixes to the new Websockets impl (#2248) 2021-09-30 22:20:57 +03:00
websockets Some fixes to the new Websockets impl (#2248) 2021-09-30 22:20:57 +03:00
__init__.py Move server.py into its own module (#2230) 2021-08-31 11:51:32 +03:00
async_server.py Move server.py into its own module (#2230) 2021-08-31 11:51:32 +03:00
events.py Move server.py into its own module (#2230) 2021-08-31 11:51:32 +03:00
runners.py New websockets (#2158) 2021-09-29 13:09:23 +03:00
socket.py Move server.py into its own module (#2230) 2021-08-31 11:51:32 +03:00