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Verify if is a websocket connection#1443

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MauroAntonino wants to merge 2 commits into from
+10 −1
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Verify if is a websocket connection #1443

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27de2b8
verify if is a websocket connection
MauroAntonino Feb 21, 2024
96c273e
fix websocket header verificationƒ
MauroAntonino Feb 26, 2024
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11 changes: 10 additions & 1 deletion src/websockets/sync/server.py
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Original file line numberDiff line numberDiff line change
Expand Up@@ -263,6 +263,14 @@ def __exit__(
) -> None:
self.shutdown()

def is_websocket(connection):
"""
return True if the connection is a websocket

"""
upgrade_header = connection.__dict__.get('request').headers.get('Upgrade', '')
connection_header = connection.__dict__.get('request').headers.get('Connection', '')
return upgrade_header.lower() == 'websocket' and connection_header.lower() == 'upgrade'

def serve(
handler: Callable[[ServerConnection], None],
Expand DownExpand Up@@ -508,7 +516,8 @@ def protocol_select_subprotocol(
return

try:
handler(connection)
if is_websocket(connection):
handler(connection)
except Exception:
protocol.logger.error("connection handler failed", exc_info=True)
connection.close(CloseCode.INTERNAL_ERROR)
Expand Down