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lnworker: (fix) a listening node would busy-loop if remote DC-ed early

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StreamReader.read() returns b'' on EOF, resulting in a busy loop
This commit is contained in:
SomberNight
2020-09-24 01:52:35 +02:00
parent a81b0ecc59
commit c010aa327e
2 changed files with 10 additions and 4 deletions
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10
electrum/lntransport.py
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@@ -172,7 +172,10 @@ class LNResponderTransport(LNTransportBase):
hs = HandshakeState(privkey_to_pubkey(self.privkey))
act1 = b''
while len(act1) < 50:
act1 += await self.reader.read(50 - len(act1))
buf = await self.reader.read(50 - len(act1))
if not buf:
raise HandshakeFailed('responder disconnected')
act1 += buf
if len(act1) != 50:
raise HandshakeFailed('responder: short act 1 read, length is ' + str(len(act1)))
if bytes([act1[0]]) != HandshakeState.handshake_version:
@@ -200,7 +203,10 @@ class LNResponderTransport(LNTransportBase):
# act 3
act3 = b''
while len(act3) < 66:
act3 += await self.reader.read(66 - len(act3))
buf = await self.reader.read(66 - len(act3))
if not buf:
raise HandshakeFailed('responder disconnected')
act3 += buf
if len(act3) != 66:
raise HandshakeFailed('responder: short act 3 read, length is ' + str(len(act3)))
if bytes([act3[0]]) != HandshakeState.handshake_version: