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transaction.serialize_preimage: trivial clean-up

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SomberNight 2019-07-08 05:58:57 +02:00
parent b4bf39ee92
commit a14016275b
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1 changed files with 5 additions and 5 deletions
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10
electrum/transaction.py
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@ -958,14 +958,13 @@ class Transaction:
s += script s += script
return s return s
def serialize_preimage(self, i): def serialize_preimage(self, txin_index: int) -> str:
nVersion = int_to_hex(self.version, 4) nVersion = int_to_hex(self.version, 4)
nHashType = int_to_hex(1, 4) nHashType = int_to_hex(1, 4) # SIGHASH_ALL
nLocktime = int_to_hex(self.locktime, 4) nLocktime = int_to_hex(self.locktime, 4)
inputs = self.inputs() inputs = self.inputs()
outputs = self.outputs() outputs = self.outputs()
txin = inputs[i] txin = inputs[txin_index]
# TODO: py3 hex
if self.is_segwit_input(txin): if self.is_segwit_input(txin):
hashPrevouts = bh2u(sha256d(bfh(''.join(self.serialize_outpoint(txin) for txin in inputs)))) hashPrevouts = bh2u(sha256d(bfh(''.join(self.serialize_outpoint(txin) for txin in inputs))))
hashSequence = bh2u(sha256d(bfh(''.join(int_to_hex(txin.get('sequence', 0xffffffff - 1), 4) for txin in inputs)))) hashSequence = bh2u(sha256d(bfh(''.join(int_to_hex(txin.get('sequence', 0xffffffff - 1), 4) for txin in inputs))))
@ -977,7 +976,8 @@ class Transaction:
nSequence = int_to_hex(txin.get('sequence', 0xffffffff - 1), 4) nSequence = int_to_hex(txin.get('sequence', 0xffffffff - 1), 4)
preimage = nVersion + hashPrevouts + hashSequence + outpoint + scriptCode + amount + nSequence + hashOutputs + nLocktime + nHashType preimage = nVersion + hashPrevouts + hashSequence + outpoint + scriptCode + amount + nSequence + hashOutputs + nLocktime + nHashType
else: else:
txins = var_int(len(inputs)) + ''.join(self.serialize_input(txin, self.get_preimage_script(txin) if i==k else '') for k, txin in enumerate(inputs)) txins = var_int(len(inputs)) + ''.join(self.serialize_input(txin, self.get_preimage_script(txin) if txin_index==k else '')
for k, txin in enumerate(inputs))
txouts = var_int(len(outputs)) + ''.join(self.serialize_output(o) for o in outputs) txouts = var_int(len(outputs)) + ''.join(self.serialize_output(o) for o in outputs)
preimage = nVersion + txins + txouts + nLocktime + nHashType preimage = nVersion + txins + txouts + nLocktime + nHashType
return preimage return preimage