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signet: split decode_psbt miner helper

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This commit is contained in:
Sjors Provoost
2024-09-06 09:53:57 +02:00
parent 7710a31f0c
commit cdfb70e5a6
1 changed files with 13 additions and 5 deletions
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18
contrib/signet/miner
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@@ -66,17 +66,21 @@ def signet_txs(block, challenge):
return spend, to_spend return spend, to_spend
def decode_psbt(b64psbt): def decode_challenge_psbt(b64psbt):
psbt = PSBT.from_base64(b64psbt) psbt = PSBT.from_base64(b64psbt)
assert len(psbt.tx.vin) == 1 assert len(psbt.tx.vin) == 1
assert len(psbt.tx.vout) == 1 assert len(psbt.tx.vout) == 1
assert PSBT_SIGNET_BLOCK in psbt.g.map assert PSBT_SIGNET_BLOCK in psbt.g.map
return psbt
def get_block_from_psbt(psbt):
return from_binary(CBlock, psbt.g.map[PSBT_SIGNET_BLOCK])
def get_solution_from_psbt(psbt):
scriptSig = psbt.i[0].map.get(PSBT_IN_FINAL_SCRIPTSIG, b"") scriptSig = psbt.i[0].map.get(PSBT_IN_FINAL_SCRIPTSIG, b"")
scriptWitness = psbt.i[0].map.get(PSBT_IN_FINAL_SCRIPTWITNESS, b"\x00") scriptWitness = psbt.i[0].map.get(PSBT_IN_FINAL_SCRIPTWITNESS, b"\x00")
return ser_string(scriptSig) + scriptWitness
return from_binary(CBlock, psbt.g.map[PSBT_SIGNET_BLOCK]), ser_string(scriptSig) + scriptWitness
def finish_block(block, signet_solution, grind_cmd): def finish_block(block, signet_solution, grind_cmd):
block.vtx[0].vout[-1].scriptPubKey += CScriptOp.encode_op_pushdata(SIGNET_HEADER + signet_solution) block.vtx[0].vout[-1].scriptPubKey += CScriptOp.encode_op_pushdata(SIGNET_HEADER + signet_solution)
@@ -180,7 +184,9 @@ def do_genpsbt(args):
print(psbt) print(psbt)
def do_solvepsbt(args): def do_solvepsbt(args):
block, signet_solution = decode_psbt(sys.stdin.read()) psbt = decode_challenge_psbt(sys.stdin.read())
block = get_block_from_psbt(psbt)
signet_solution = get_solution_from_psbt(psbt)
block = finish_block(block, signet_solution, args.grind_cmd) block = finish_block(block, signet_solution, args.grind_cmd)
print(block.serialize().hex()) print(block.serialize().hex())
@@ -330,7 +336,9 @@ class Generate:
logging.debug("Generated PSBT: %s" % (psbt,)) logging.debug("Generated PSBT: %s" % (psbt,))
sys.stderr.write("PSBT signing failed\n") sys.stderr.write("PSBT signing failed\n")
return None return None
block, signet_solution = decode_psbt(psbt_signed["psbt"]) psbt = decode_challenge_psbt(psbt_signed["psbt"])
block = get_block_from_psbt(psbt)
signet_solution = get_solution_from_psbt(psbt)
return finish_block(block, signet_solution, grind_cmd) return finish_block(block, signet_solution, grind_cmd)
def do_generate(args): def do_generate(args):