localstack / rolo

91%

main: 91%

Build Type

push

github

Committed by web-flow

Commit Message

fix twisted websocket close handshake (#42)

The twisted WebSocketChannel never completed the closing handshake:
a client-initiated close was not answered with a close frame, the TCP
connection was never terminated, and Request.finish() wrote its
never-started HTTP response into the upgraded websocket stream, which
clients decoded as a malformed (fragmented) close frame. Clients ended
up burning their close timeout and, depending on thread timing, failing
inside their own close logic.

Complete the handshake per RFC 6455 section 7: echo the close frame,
mark the request as written before finishing so twisted emits nothing,
and terminate the TCP connection.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

Coverage Stats

12 of 13 new or added lines in 1 file covered. (92.31%)

1 existing line in 1 file now uncovered.

1676 of 1846 relevant lines covered (90.79%)

3.63 hits per line