williamp/localtuya-modded
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Fixed negotiation and sequence numbers for protocol 3.4

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rospogrigio
2023-01-09 01:31:28 +01:00
committed by rospogrigio
parent 960f07b6bb
commit edc6752ecf
1 changed files with 6 additions and 3 deletions
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9
custom_components/localtuya/pytuya/__init__.py
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@@ -366,8 +366,9 @@ class AESCipher:
class MessageDispatcher(ContextualLogger): class MessageDispatcher(ContextualLogger):
"""Buffer and dispatcher for Tuya messages.""" """Buffer and dispatcher for Tuya messages."""
# Heartbeats always respond with sequence number 0, so they can't be waited for like # Heartbeats on protocols < 3.3 respond with sequence number 0,
# other messages. This is a hack to allow waiting for heartbeats. # so they can't be waited for like other messages.
# This is a hack to allow waiting for heartbeats.
HEARTBEAT_SEQNO = -100 HEARTBEAT_SEQNO = -100
RESET_SEQNO = -101 RESET_SEQNO = -101
SESS_KEY_SEQNO = -102 SESS_KEY_SEQNO = -102
@@ -418,7 +419,7 @@ class MessageDispatcher(ContextualLogger):
break break
header = parse_header(self.buffer) header = parse_header(self.buffer)
hmac_key = self.local_key if self.version == '3.4' else None hmac_key = self.local_key if self.version == 3.4 else None
msg = unpack_message(self.buffer, header=header, hmac_key=hmac_key, logger=self); msg = unpack_message(self.buffer, header=header, hmac_key=hmac_key, logger=self);
self.buffer = self.buffer[header_len - 4 + header.length :] self.buffer = self.buffer[header_len - 4 + header.length :]
self._dispatch(msg) self._dispatch(msg)
@@ -561,6 +562,8 @@ class TuyaProtocol(asyncio.Protocol, ContextualLogger):
def _setup_dispatcher(self): def _setup_dispatcher(self):
def _status_update(msg): def _status_update(msg):
if self.seqno > 0:
self.seqno = msg.seqno + 1
decoded_message = self._decode_payload(msg.payload) decoded_message = self._decode_payload(msg.payload)
if "dps" in decoded_message: if "dps" in decoded_message:
self.dps_cache.update(decoded_message["dps"]) self.dps_cache.update(decoded_message["dps"])