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onchaind: use lightningd to sign and broadcast htlc expired txs.

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This is when they closed the channel, we can simply make our own tx to
expire the HTLC.  (The other case is where we closed the channel, and
we have a special htlc_timeout tx which we have their signature for).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2023-04-06 09:03:25 +09:30
parent 5bdd532e70
commit 0c27acc705
9 changed files with 169 additions and 181 deletions
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11
tests/test_plugin.py
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@@ -1332,13 +1332,12 @@ def test_forward_event_notification(node_factory, bitcoind, executor):
l2.daemon.wait_for_log(' to ONCHAIN')
l5.daemon.wait_for_log(' to ONCHAIN')
l2.daemon.wait_for_log('Propose handling THEIR_UNILATERAL/OUR_HTLC by OUR_HTLC_TIMEOUT_TO_US .* after 6 blocks')
bitcoind.generate_block(6)
((_, txid, blocks),) = l2.wait_for_onchaind_tx('OUR_HTLC_TIMEOUT_TO_US',
'THEIR_UNILATERAL/OUR_HTLC')
assert blocks == 5
bitcoind.generate_block(5)
l2.wait_for_onchaind_broadcast('OUR_HTLC_TIMEOUT_TO_US',
'THEIR_UNILATERAL/OUR_HTLC')
bitcoind.generate_block(1)
bitcoind.generate_block(1, wait_for_mempool=txid)
l2.daemon.wait_for_log('Resolved THEIR_UNILATERAL/OUR_HTLC by our proposal OUR_HTLC_TIMEOUT_TO_US')
l5.daemon.wait_for_log('Ignoring output.*: OUR_UNILATERAL/THEIR_HTLC')