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Parse Connection header properly when checking for upgrade to WebSocket

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Kovid Goyal 2015-11-02 20:44:22 +05:30
parent d7180443da
commit 104e97367c
1 changed files with 3 additions and 3 deletions
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6
src/calibre/srv/web_socket.py
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@ -269,10 +269,10 @@ class WebSocketConnection(HTTPConnection):
self.stop_reading = False self.stop_reading = False
def finalize_headers(self, inheaders): def finalize_headers(self, inheaders):
upgrade = inheaders.get('Upgrade', None) upgrade = inheaders.get('Upgrade', '')
key = inheaders.get('Sec-WebSocket-Key', None) key = inheaders.get('Sec-WebSocket-Key', None)
conn = inheaders.get('Connection', None) conn = {x.strip().lower() for x in inheaders.get('Connection', '').split(',')}
if key is None or upgrade.lower() != 'websocket' or conn != 'Upgrade': if key is None or upgrade.lower() != 'websocket' or 'upgrade' not in conn:
return HTTPConnection.finalize_headers(self, inheaders) return HTTPConnection.finalize_headers(self, inheaders)
ver = inheaders.get('Sec-WebSocket-Version', 'Unknown') ver = inheaders.get('Sec-WebSocket-Version', 'Unknown')
try: try: