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Ensure HTTP connections are closed in case of data-less TCP pings #1244

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5 changes: 5 additions & 0 deletions uvicorn/_handlers/http.py
Original file line number Diff line number Diff line change
Expand Up @@ -81,6 +81,11 @@ def retrieve_exception(task: asyncio.Task) -> None:
data = reader._buffer # type: ignore
if data:
protocol.data_received(data)
else:
# Client already disconnected.
# E.g. they sent a TCP ping health check.
# Fine, let's disconnect too.
transport.close()

# Let the transport run in the background. When closed, this future will complete
# and we'll exit here.
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