def serialise_tx(self):
self._process_outputs()
inputs_cbor = []
for input in self.inputs:
inputs_cbor.append(
[
(input.type or 0),
cbor.Tagged(24, cbor.encode([input.prev_hash, input.prev_index])),
]
)
inputs_cbor = cbor.IndefiniteLengthArray(inputs_cbor)
outputs_cbor = []
for index, address in enumerate(self.output_addresses):
outputs_cbor.append(
[cbor.Raw(base58.decode(address)), self.outgoing_coins[index]]
)
for index, address in enumerate(self.change_addresses):
outputs_cbor.append(
[cbor.Raw(base58.decode(address)), self.change_coins[index]]
)
outputs_cbor = cbor.IndefiniteLengthArray(outputs_cbor)
tx_aux_cbor = [inputs_cbor, outputs_cbor, self.attributes]
tx_hash = hashlib.blake2b(data=cbor.encode(tx_aux_cbor), outlen=32).digest()
witnesses = self._build_witnesses(tx_hash)
tx_body = cbor.encode([tx_aux_cbor, witnesses])
self.fee = self.compute_fee(
self.input_coins_sum, self.outgoing_coins, self.change_coins
)
return tx_body, tx_hash
def _cborize_signed_tx(keychain: seed.Keychain,
msg: CardanoSignTx) -> tuple[CborizedSignedTx, TxHash]:
tx_body = _cborize_tx_body(keychain, msg)
tx_hash = _hash_tx_body(tx_body)
witnesses = _cborize_witnesses(
keychain,
msg.inputs,
msg.certificates,
msg.withdrawals,
tx_hash,
msg.protocol_magic,
)
metadata = None
if msg.metadata:
metadata = cbor.Raw(bytes(msg.metadata))
return (tx_body, witnesses, metadata), tx_hash
def _serialize_tx(keychain: seed.Keychain, msg: CardanoSignTx) -> Tuple[bytes, bytes]:
tx_body = _build_tx_body(keychain, msg)
tx_hash = _hash_tx_body(tx_body)
witnesses = _build_witnesses(
keychain,
msg.inputs,
msg.certificates,
msg.withdrawals,
tx_hash,
msg.protocol_magic,
)
metadata = None
if msg.metadata:
metadata = cbor.Raw(bytes(msg.metadata))
serialized_tx = cbor.encode([tx_body, witnesses, metadata])
return serialized_tx, tx_hash
def _cborize_signed_tx(keychain: seed.Keychain,
msg: CardanoSignTx) -> tuple[CborizedSignedTx, TxHash]:
tx_body = _cborize_tx_body(keychain, msg)
tx_hash = _hash_tx_body(tx_body)
witnesses = _cborize_witnesses(
keychain,
msg.inputs,
msg.certificates,
msg.withdrawals,
tx_hash,
msg.protocol_magic,
)
auxiliary_data = None
if msg.auxiliary_data:
auxiliary_data_cbor = get_auxiliary_data_cbor(keychain,
msg.auxiliary_data,
msg.protocol_magic,
msg.network_id)
auxiliary_data = cbor.Raw(auxiliary_data_cbor)
return (tx_body, witnesses, auxiliary_data), tx_hash