tlnchan: make force_close_tx() assure that tx is valid, trigger failure in test - electrum - Electrum Bitcoin wallet
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---
DIR commit 1d8fe52fa3d54cceb034d44ccea98a3b54eaebe9
DIR parent cf3e050b7e58d46fda20959125f081f3264a3f28
HTML Author: Janus <ysangkok@gmail.com>
Date: Mon, 17 Dec 2018 15:27:34 +0100
lnchan: make force_close_tx() assure that tx is valid, trigger failure in test
Diffstat:
M electrum/lnchan.py | 5 +++++
M electrum/tests/test_lnchan.py | 2 ++
2 files changed, 7 insertions(+), 0 deletions(-)
---
DIR diff --git a/electrum/lnchan.py b/electrum/lnchan.py
t@@ -868,6 +868,11 @@ class Channel(PrintError):
tx = self.current_commitment(LOCAL)
tx.sign({bh2u(self.config[LOCAL].multisig_key.pubkey): (self.config[LOCAL].multisig_key.privkey, True)})
remote_sig = self.config[LOCAL].current_commitment_signature
+
+ preimage_hex = tx.serialize_preimage(0)
+ pre_hash = sha256d(bfh(preimage_hex))
+ assert ecc.verify_signature(self.config[REMOTE].multisig_key.pubkey, remote_sig, pre_hash)
+
remote_sig = ecc.der_sig_from_sig_string(remote_sig) + b"\x01"
none_idx = tx._inputs[0]["signatures"].index(None)
tx.add_signature_to_txin(0, none_idx, bh2u(remote_sig))
DIR diff --git a/electrum/tests/test_lnchan.py b/electrum/tests/test_lnchan.py
t@@ -237,6 +237,8 @@ class TestChannel(unittest.TestCase):
# forward since she's sending an outgoing HTLC.
alice_channel.receive_revocation(bobRevocation)
+ alice_channel.force_close_tx()
+
# test serializing with locked_in htlc
self.assertEqual(len(alice_channel.to_save()['local_log']), 1)
alice_channel.serialize()