def cmd_mkwitness(args):
tx = None
if args.tx is not None:
serialized_tx = args.tx
tx = CTransaction.deserialize(serialized_tx)
else:
tx = args.proxy.getrawtransaction(args.txid)
txproof = TxProof(tx=tx)
for seal_fd in args.seal_fds:
seal = BitcoinSingleUseSeal.deserialize(seal_fd.read())
txinproof = None
txoutproof = None
for i, txin in enumerate(txproof.tx.vin):
if txin.prevout == seal.outpoint:
txinproof = TxInProof(i=i, txproof=txproof)
txoutproof = TxOutProof(i=0, txproof=txproof)
break
else:
args.parser.error("Seal '%s' not closed by this transaction" % seal_fd.name)
witness = BitcoinSealWitness(seal=seal, txinproof=txinproof, txoutproof=txoutproof)
witness_filename = seal_fd.name + '.witness'
logging.info("Creating witness file '%s'" % witness_filename)
with open(seal_fd.name + '.witness', 'xb') as witness_fd:
witness_fd.write(witness.serialize())
