tln: don't break channel when failing htlc - electrum - Electrum Bitcoin wallet
HTML git clone https://git.parazyd.org/electrum
DIR Log
DIR Files
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DIR Submodules
---
DIR commit 3f733328179ac4770571bc1b54c3d7b5739db0e4
DIR parent 6f88c55f170774e24623e39c32120cb296602ad6
HTML Author: Janus <ysangkok@gmail.com>
Date: Tue, 19 Jun 2018 15:13:48 +0200
ln: don't break channel when failing htlc
Diffstat:
M lib/lnbase.py | 12 ++++++------
M lib/tests/test_lnhtlc.py | 1 +
2 files changed, 7 insertions(+), 6 deletions(-)
---
DIR diff --git a/lib/lnbase.py b/lib/lnbase.py
t@@ -1153,17 +1153,17 @@ class Peer(PrintError):
done, pending = await asyncio.wait([fulfill_coro, failure_coro], return_when=FIRST_COMPLETED)
if failure_coro.done():
+ sig_64, htlc_sigs = m.sign_next_commitment()
+ self.send_message(gen_msg("commitment_signed", channel_id=chan.channel_id, signature=sig_64, num_htlcs=1, htlc_signature=htlc_sigs[0]))
+ while (await self.commitment_signed[chan.channel_id].get())["htlc_signature"] != b"":
+ self.revoke(m)
+ await self.receive_revoke(m)
m.fail_htlc(htlc)
- # TODO receive their commitment here
-
- # TODO find out why the following block fails with "not enough htlc signatures"
sig_64, htlc_sigs = m.sign_next_commitment()
- assert len(htlc_sigs) == 0
self.send_message(gen_msg("commitment_signed", channel_id=chan.channel_id, signature=sig_64, num_htlcs=0))
-
await self.receive_revoke(m)
- self.revoke(m)
fulfill_coro.cancel()
+ self.lnworker.save_channel(m.state)
return failure_coro.result()
if fulfill_coro.done():
failure_coro.cancel()
DIR diff --git a/lib/tests/test_lnhtlc.py b/lib/tests/test_lnhtlc.py
t@@ -202,6 +202,7 @@ class TestLNBaseHTLCStateMachine(unittest.TestCase):
aliceRevocation2, _ = alice_channel.revoke_current_commitment()
aliceSig2, aliceHtlcSigs2 = alice_channel.sign_next_commitment()
+ self.assertEqual(aliceHtlcSigs2, [], "alice should generate no htlc signatures")
bob_channel.receive_revocation(aliceRevocation2)