def prepare_transfer_tx(hw_session: HwSessionInfo, utxos_to_spend: List[dict], dest_addresses: List[Tuple[str, int, str]], tx_fee):
"""
Creates a signed transaction.
:param hw_session:
:param utxos_to_spend: list of utxos to send
:param dest_address: destination (Dash) address
:param tx_fee: transaction fee
:return: tuple (serialized tx, total transaction amount in satoshis)
"""
insight_network = 'insight_dash'
if hw_session.app_config.is_testnet():
insight_network += '_testnet'
dash_network = hw_session.app_config.dash_network
tx_api = MyTxApiInsight(insight_network, '', hw_session.zyrkd_intf, hw_session.app_config.cache_dir)
client = hw_session.hw_client
client.set_tx_api(tx_api)
inputs = []
outputs = []
inputs_amount = 0
for utxo_index, utxo in enumerate(utxos_to_spend):
if not utxo.get('bip32_path', None):
raise Exception('No BIP32 path for UTXO ' + utxo['txid'])
address_n = client.expand_path(clean_bip32_path(utxo['bip32_path']))
it = proto_types.TxInputType(address_n=address_n, prev_hash=binascii.unhexlify(utxo['txid']),
prev_index=utxo['outputIndex'])
inputs.append(it)
inputs_amount += utxo['satoshis']
outputs_amount = 0
for addr, amount, bip32_path in dest_addresses:
outputs_amount += amount
if addr[0] in dash_utils.get_chain_params(dash_network).B58_PREFIXES_SCRIPT_ADDRESS:
stype = proto_types.PAYTOSCRIPTHASH
logging.debug('Transaction type: PAYTOSCRIPTHASH' + str(stype))
elif addr[0] in dash_utils.get_chain_params(dash_network).B58_PREFIXES_PUBKEY_ADDRESS:
stype = proto_types.PAYTOADDRESS
logging.debug('Transaction type: PAYTOADDRESS ' + str(stype))
else:
raise Exception('Invalid prefix of the destination address.')
if bip32_path:
address_n = client.expand_path(bip32_path)
else:
address_n = None
ot = proto_types.TxOutputType(
address=addr if address_n is None else None,
address_n=address_n,
amount=amount,
script_type=stype
)
outputs.append(ot)
if outputs_amount + tx_fee != inputs_amount:
raise Exception('Transaction validation failure: inputs + fee != outputs')
signed = client.sign_tx(hw_session.app_config.hw_coin_name, inputs, outputs)
logging.info('Signed transaction')
return signed[1], inputs_amount
def __init__(self, parent, app_config: AppConfig, all_mns: bool):
columns = [
TableModelColumn("ip_address", "IP Address", True, 100),
TableModelColumn("protocol", "Protocol", True, 60),
TableModelColumn("status", "Status", True, 100),
TableModelColumn("activeseconds", "Active Time", True, 80),
TableModelColumn("lastseen", "Last Seen", True, 80),
TableModelColumn("payee_address", "Collateral Address", True, 120)
]
if not all_mns:
columns.insert(0, TableModelColumn("alias", "Name", True, 80))
ExtSortFilterTableModel.__init__(self, parent, columns, True, True)
wnd_utils.WndUtils.__init__(self, None)
self.port = str(
dash_utils.get_chain_params(app_config.dash_network).P2P_PORT)
self.all = all_mns
self.dashd_intf = parent.dashd_intf
self.mnlist = app_config.masternodes
self.parent = parent
self.set_attr_protection()
def sign_tx(hw_session: HWSessionBase, rt_data: AppRuntimeData,
utxos_to_spend: List[wallet_common.UtxoType],
tx_outputs: List[wallet_common.TxOutputType], tx_fee):
"""
Creates a signed transaction.
:param hw_session:
:param utxos_to_spend: list of utxos to send
:param tx_outputs: list of transaction outputs
:param tx_fee: transaction fee
:return: tuple (serialized tx, total transaction amount in satoshis)
"""
def load_prev_txes(tx_api_, skip_cache_: bool = False):
txes_ = {}
tx_api_.skip_cache = skip_cache_
for utxo_ in utxos_to_spend:
prev_hash_bin = bytes.fromhex(utxo_.txid)
if prev_hash_bin not in txes_:
tx = tx_api_.get_tx(utxo_.txid)
txes_[prev_hash_bin] = tx
return txes_
insight_network = 'insight_dash'
if rt_data.is_testnet:
insight_network += '_testnet'
dash_network = rt_data.dash_network
tx_api = MyTxApiInsight(rt_data.dashd_intf, rt_data.tx_cache_dir)
client = hw_session.hw_client
inputs = []
outputs = []
inputs_amount = 0
for utxo_index, utxo in enumerate(utxos_to_spend):
if not utxo.bip32_path:
raise Exception('No BIP32 path for UTXO ' + utxo.txid)
address_n = dash_utils.bip32_path_string_to_n(utxo.bip32_path)
it = trezor_proto.TxInputType(address_n=address_n,
amount=utxo.satoshis,
prev_hash=binascii.unhexlify(utxo.txid),
prev_index=int(utxo.output_index))
inputs.append(it)
inputs_amount += utxo.satoshis
outputs_amount = 0
for out in tx_outputs:
outputs_amount += out.satoshis
if out.address[0] in dash_utils.get_chain_params(
dash_network).B58_PREFIXES_SCRIPT_ADDRESS:
stype = trezor_proto.OutputScriptType.PAYTOSCRIPTHASH
logging.debug('Transaction type: PAYTOSCRIPTHASH' + str(stype))
elif out.address[0] in dash_utils.get_chain_params(
dash_network).B58_PREFIXES_PUBKEY_ADDRESS:
stype = trezor_proto.OutputScriptType.PAYTOADDRESS
logging.debug('Transaction type: PAYTOADDRESS ' + str(stype))
else:
raise Exception('Invalid prefix of the destination address.')
if out.bip32_path:
address_n = dash_utils.bip32_path_string_to_n(out.bip32_path)
else:
address_n = None
ot = trezor_proto.TxOutputType(
address=out.address if address_n is None else None,
address_n=address_n,
amount=out.satoshis,
script_type=stype)
outputs.append(ot)
if outputs_amount + tx_fee != inputs_amount:
raise Exception(
'Transaction validation failure: inputs + fee != outputs')
try:
for skip_cache in (False, True):
txes = load_prev_txes(tx_api, skip_cache)
try:
signed = btc.sign_tx(client,
rt_data.hw_coin_name,
inputs,
outputs,
prev_txes=txes)
return signed[1], inputs_amount
except exceptions.Cancelled:
raise
except Exception:
if skip_cache:
raise
log.exception(
'Exception occurred while signing transaction. Turning off the transaction cache '
'and retrying...')
raise Exception('Internal error: transaction not signed')
except exceptions.Cancelled:
raise CancelException('Cancelled')
except exceptions.TrezorFailure as e:
if e.failure.message == 'Device not initialized':
raise HwNotInitialized(e.failure.message)
else:
raise
def sign_tx(hw_session: HWSessionBase, rt_data: AppRuntimeData,
utxos_to_spend: List[wallet_common.UtxoType],
tx_outputs: List[wallet_common.TxOutputType], tx_fee):
"""
Creates a signed transaction.
:param hw_session:
:param utxos_to_spend: list of utxos to send
:param tx_outputs: list of transaction outputs
:param tx_fee: transaction fee
:return: tuple (serialized tx, total transaction amount in satoshis)
"""
insight_network = 'insight_dash'
if rt_data.is_testnet:
insight_network += '_testnet'
dash_network = rt_data.dash_network
tx_api = MyTxApiInsight(insight_network, '', rt_data.dashd_intf,
rt_data.tx_cache_dir)
client = hw_session.hw_client
client.set_tx_api(tx_api)
inputs = []
outputs = []
inputs_amount = 0
for utxo_index, utxo in enumerate(utxos_to_spend):
if not utxo.bip32_path:
raise Exception('No BIP32 path for UTXO ' + utxo.txid)
address_n = client.expand_path(clean_bip32_path(utxo.bip32_path))
it = proto_types.TxInputType(address_n=address_n,
prev_hash=binascii.unhexlify(utxo.txid),
prev_index=utxo.output_index)
inputs.append(it)
inputs_amount += utxo.satoshis
outputs_amount = 0
for out in tx_outputs:
outputs_amount += out.satoshis
if out.address[0] in dash_utils.get_chain_params(
dash_network).B58_PREFIXES_SCRIPT_ADDRESS:
stype = proto_types.PAYTOSCRIPTHASH
logging.debug('Transaction type: PAYTOSCRIPTHASH' + str(stype))
elif out.address[0] in dash_utils.get_chain_params(
dash_network).B58_PREFIXES_PUBKEY_ADDRESS:
stype = proto_types.PAYTOADDRESS
logging.debug('Transaction type: PAYTOADDRESS ' + str(stype))
else:
raise Exception('Invalid prefix of the destination address.')
if out.bip32_path:
address_n = client.expand_path(out.bip32_path)
else:
address_n = None
ot = proto_types.TxOutputType(
address=out.address if address_n is None else None,
address_n=address_n,
amount=out.satoshis,
script_type=stype)
outputs.append(ot)
if outputs_amount + tx_fee != inputs_amount:
raise Exception(
'Transaction validation failure: inputs + fee != outputs')
signed = client.sign_tx(rt_data.hw_coin_name, inputs, outputs)
logging.info('Signed transaction')
return signed[1], inputs_amount