AaronFiore/electrum
1
0
Fork 0
Code Activity

lnutil: add htlc witness_script templates for anchors

Browse Source 
extracted from https://github.com/spesmilo/electrum/pull/9628
This commit is contained in:
ThomasV
2025-03-12 16:41:45 +00:00
committed by SomberNight
parent 9d0cc6c4a3
commit 77c180f793
1 changed files with 81 additions and 59 deletions
Download Patch File Download Diff File Expand all files Collapse all files

140
electrum/lnutil.py
View File

@@ -858,67 +858,89 @@ def make_received_htlc(
return script return script
WITNESS_TEMPLATE_OFFERED_HTLC = [ def witness_template_offered_htlc(anchors):
opcodes.OP_DUP, return [
opcodes.OP_HASH160, opcodes.OP_DUP,
OPPushDataGeneric(None), opcodes.OP_HASH160,
opcodes.OP_EQUAL, OPPushDataGeneric(None),
opcodes.OP_IF, opcodes.OP_EQUAL,
opcodes.OP_CHECKSIG, opcodes.OP_IF,
opcodes.OP_ELSE, opcodes.OP_CHECKSIG,
OPPushDataGeneric(None), opcodes.OP_ELSE,
opcodes.OP_SWAP, OPPushDataGeneric(None),
opcodes.OP_SIZE, opcodes.OP_SWAP,
OPPushDataGeneric(lambda x: x==1), opcodes.OP_SIZE,
opcodes.OP_EQUAL, OPPushDataGeneric(lambda x: x==1),
opcodes.OP_NOTIF, opcodes.OP_EQUAL,
opcodes.OP_DROP, opcodes.OP_NOTIF,
opcodes.OP_2, opcodes.OP_DROP,
opcodes.OP_SWAP, opcodes.OP_2,
OPPushDataGeneric(None), opcodes.OP_SWAP,
opcodes.OP_2, OPPushDataGeneric(None),
opcodes.OP_CHECKMULTISIG, opcodes.OP_2,
opcodes.OP_ELSE, opcodes.OP_CHECKMULTISIG,
opcodes.OP_HASH160, opcodes.OP_ELSE,
OPPushDataGeneric(None), opcodes.OP_HASH160,
opcodes.OP_EQUALVERIFY, OPPushDataGeneric(None),
opcodes.OP_CHECKSIG, opcodes.OP_EQUALVERIFY,
opcodes.OP_ENDIF, opcodes.OP_CHECKSIG,
opcodes.OP_ENDIF, opcodes.OP_ENDIF,
] ] + ([
opcodes.OP_1,
opcodes.OP_CHECKSEQUENCEVERIFY,
opcodes.OP_DROP,
] if anchors else [
]) + [
opcodes.OP_ENDIF,
]
WITNESS_TEMPLATE_RECEIVED_HTLC = [ WITNESS_TEMPLATE_OFFERED_HTLC = witness_template_offered_htlc(anchors=False)
opcodes.OP_DUP, WITNESS_TEMPLATE_OFFERED_HTLC_ANCHORS = witness_template_offered_htlc(anchors=True)
opcodes.OP_HASH160,
OPPushDataGeneric(None),
opcodes.OP_EQUAL, def witness_template_received_htlc(anchors):
opcodes.OP_IF, return [
opcodes.OP_CHECKSIG, opcodes.OP_DUP,
opcodes.OP_ELSE, opcodes.OP_HASH160,
OPPushDataGeneric(None), OPPushDataGeneric(None),
opcodes.OP_SWAP, opcodes.OP_EQUAL,
opcodes.OP_SIZE, opcodes.OP_IF,
OPPushDataGeneric(lambda x: x==1), opcodes.OP_CHECKSIG,
opcodes.OP_EQUAL, opcodes.OP_ELSE,
opcodes.OP_IF, OPPushDataGeneric(None),
opcodes.OP_HASH160, opcodes.OP_SWAP,
OPPushDataGeneric(None), opcodes.OP_SIZE,
opcodes.OP_EQUALVERIFY, OPPushDataGeneric(lambda x: x==1),
opcodes.OP_2, opcodes.OP_EQUAL,
opcodes.OP_SWAP, opcodes.OP_IF,
OPPushDataGeneric(None), opcodes.OP_HASH160,
opcodes.OP_2, OPPushDataGeneric(None),
opcodes.OP_CHECKMULTISIG, opcodes.OP_EQUALVERIFY,
opcodes.OP_ELSE, opcodes.OP_2,
opcodes.OP_DROP, opcodes.OP_SWAP,
OPPushDataGeneric(None), OPPushDataGeneric(None),
opcodes.OP_CHECKLOCKTIMEVERIFY, opcodes.OP_2,
opcodes.OP_DROP, opcodes.OP_CHECKMULTISIG,
opcodes.OP_CHECKSIG, opcodes.OP_ELSE,
opcodes.OP_ENDIF, opcodes.OP_DROP,
opcodes.OP_ENDIF, OPPushDataGeneric(None),
] opcodes.OP_CHECKLOCKTIMEVERIFY,
opcodes.OP_DROP,
opcodes.OP_CHECKSIG,
opcodes.OP_ENDIF,
] + ([
opcodes.OP_1,
opcodes.OP_CHECKSEQUENCEVERIFY,
opcodes.OP_DROP,
] if anchors else [
]) + [
opcodes.OP_ENDIF,
]
WITNESS_TEMPLATE_RECEIVED_HTLC = witness_template_received_htlc(anchors=False)
WITNESS_TEMPLATE_RECEIVED_HTLC_ANCHORS = witness_template_received_htlc(anchors=True)
def make_htlc_output_witness_script( def make_htlc_output_witness_script(