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lnpeer: in onion errors, handle channel updates both with and w/o type

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This commit is contained in:
SomberNight
2019-08-16 22:45:58 +02:00
committed by ThomasV
parent beeb81e179
commit bce74717a6
1 changed files with 10 additions and 3 deletions
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13
electrum/lnpeer.py
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@@ -1102,9 +1102,16 @@ class Peer(Logger):
if code in failure_codes:
offset = failure_codes[code]
channel_update_len = int.from_bytes(data[offset:offset+2], byteorder="big")
channel_update = (258).to_bytes(length=2, byteorder="big") + data[offset+2: offset+2+channel_update_len]
message_type, payload = decode_msg(channel_update)
payload['raw'] = channel_update
channel_update_as_received = data[offset+2: offset+2+channel_update_len]
channel_update_typed = (258).to_bytes(length=2, byteorder="big") + channel_update_as_received
# note: some nodes put channel updates in error msgs with the leading msg_type already there.
# we try decoding both ways here.
try:
message_type, payload = decode_msg(channel_update_typed)
payload['raw'] = channel_update_typed
except: # FIXME: too broad
message_type, payload = decode_msg(channel_update_as_received)
payload['raw'] = channel_update_as_received
categorized_chan_upds = self.channel_db.add_channel_updates([payload])
blacklist = False
if categorized_chan_upds.good: