def get_xpub(hw_session: HwSessionInfo, bip32_path):
client = hw_session.hw_client
if client:
if isinstance(bip32_path, str):
bip32_path.strip()
if bip32_path.lower().find('m/') >= 0:
bip32_path = bip32_path[2:]
if hw_session.app_config.hw_type == HWType.trezor:
from trezorlib import btc
if isinstance(bip32_path, str):
bip32_path = gewel_utils.bip32_path_string_to_n(bip32_path)
return btc.get_public_node(client, bip32_path).xpub
elif hw_session.app_config.hw_type == HWType.keepkey:
if isinstance(bip32_path, str):
bip32_path = gewel_utils.bip32_path_string_to_n(bip32_path)
return client.get_public_node(bip32_path).xpub
elif hw_session.app_config.hw_type == HWType.ledger_nano_s:
import hw_intf_ledgernano as ledger
if isinstance(bip32_path, list):
# ledger requires bip32 path argument as a string
bip32_path = bip32_path_n_to_string(bip32_path)
return ledger.get_xpub(client, bip32_path)
else:
raise Exception('Unknown hardware wallet type: ' + hw_session.app_config.hw_type)
else:
raise Exception('HW client not open.')
def _get_address(ctrl, hw_session: HwSessionInfo, bip32_path: str, show_display: bool = False,
message_to_display: str = None):
if ctrl:
ctrl.dlg_config_fun(dlg_title=DEFAULT_HW_BUSY_TITLE, show_progress_bar=False)
if message_to_display:
ctrl.display_msg_fun(message_to_display)
else:
ctrl.display_msg_fun('<b>Click the confirmation button on your hardware wallet to exit...</b>')
client = hw_session.hw_client
if client:
if isinstance(bip32_path, str):
bip32_path.strip()
if bip32_path.lower().find('m/') >= 0:
# removing m/ prefix because of keepkey library
bip32_path = bip32_path[2:]
if hw_session.app_config.hw_type == HWType.trezor:
from trezorlib import btc
from trezorlib import exceptions
try:
if isinstance(bip32_path, str):
bip32_path = gewel_utils.bip32_path_string_to_n(bip32_path)
ret = btc.get_address(client, hw_session.app_config.hw_coin_name, bip32_path, show_display)
return ret
except (CancelException, exceptions.Cancelled):
raise CancelException()
elif hw_session.app_config.hw_type == HWType.keepkey:
from keepkeylib.client import CallException
try:
if isinstance(bip32_path, str):
bip32_path = gewel_utils.bip32_path_string_to_n(bip32_path)
return client.get_address(hw_session.app_config.hw_coin_name, bip32_path, show_display)
except CallException as e:
if isinstance(e.args, tuple) and len(e.args) >= 2 and isinstance(e.args[1], str) and \
e.args[1].find('cancel') >= 0:
raise CancelException('Cancelled')
elif hw_session.app_config.hw_type == HWType.ledger_nano_s:
import hw_intf_ledgernano as ledger
if isinstance(bip32_path, list):
# ledger requires bip32 path argument as a string
bip32_path = bip32_path_n_to_string(bip32_path)
adr_pubkey = ledger.get_address_and_pubkey(client, bip32_path, show_display)
return adr_pubkey.get('address')
else:
raise Exception('Unknown hardware wallet type: ' + hw_session.app_config.hw_type)
else:
raise Exception('HW client not open.')
def sign_message(hw_session: HwSessionInfo, bip32path, message):
client = hw_session.hw_client
address_n = gewel_utils.bip32_path_string_to_n(bip32path)
try:
return btc.sign_message(client, hw_session.app_config.hw_coin_name,
address_n, message)
except exceptions.Cancelled:
raise CancelException('Cancelled')
def set_bip32_path(self, path):
Bip44Entry.set_bip32_path(self, path)
if path:
path_n = bip32_path_string_to_n(path)
if path_n[-2] == 1:
self.__is_change = True
else:
self.__is_change = False
def get_address_and_pubkey(hw_session: HwSessionInfo, bip32_path):
client = hw_session.hw_client
if client:
if isinstance(bip32_path, str):
bip32_path.strip()
if bip32_path.lower().find('m/') >= 0:
# removing m/ prefix because of keepkey library
bip32_path = bip32_path[2:]
if hw_session.app_config.hw_type == HWType.trezor:
from trezorlib import btc
if isinstance(bip32_path, str):
bip32_path = gewel_utils.bip32_path_string_to_n(bip32_path)
return {
'address': btc.get_address(client, hw_session.app_config.hw_coin_name, bip32_path, False),
'publicKey': btc.get_public_node(client, bip32_path).node.public_key
}
elif hw_session.app_config.hw_type == HWType.keepkey:
if isinstance(bip32_path, str):
bip32_path = gewel_utils.bip32_path_string_to_n(bip32_path)
return {
'address': client.get_address(hw_session.app_config.hw_coin_name, bip32_path, False),
'publicKey': client.get_public_node(bip32_path).node.public_key
}
elif hw_session.app_config.hw_type == HWType.ledger_nano_s:
import hw_intf_ledgernano as ledger
if isinstance(bip32_path, list):
# ledger requires bip32 path argument as a string
bip32_path = bip32_path_n_to_string(bip32_path)
return ledger.get_address_and_pubkey(client, bip32_path)
else:
raise Exception('Unknown hardware wallet type: ' + hw_session.app_config.hw_type)
def get_session_info_trezor(get_public_node_fun, hw_session: HwSessionInfo, hw_client):
nonlocal hw_type
def call_get_public_node(ctrl, get_public_node_fun, path_n):
pk = get_public_node_fun(path_n).node.public_key
return pk
path = gewel_utils.get_default_bip32_base_path(hw_session.app_config.gewel_network)
path_n = gewel_utils.bip32_path_string_to_n(path)
# show message for Trezor T device while waiting for the user to choose the passphrase input method
pub = WndUtils.run_thread_dialog(call_get_public_node, (get_public_node_fun, path_n),
title=DEFAULT_HW_BUSY_TITLE, text=DEFAULT_HW_BUSY_MESSAGE,
force_close_dlg_callback=partial(cancel_hw_thread_dialog, hw_client),
show_window_delay_ms=1000)
if pub:
hw_session.set_base_info(path, pub)
else:
raise Exception('Couldn\'t read data from the hardware wallet.')
def get_child_entry(self, index) -> 'Bip44Entry':
child = self.child_entries.get(index)
if not child:
key = self.get_bip32key()
child_key = key.ChildKey(index)
child_xpub = child_key.ExtendedKey(False, True)
if self.bip32_path:
bip32_path_n = bip32_path_string_to_n(self.bip32_path)
bip32_path_n.append(index)
bip32_path = bip32_path_n_to_string(bip32_path_n)
else:
raise Exception('Unknown BIP32 path of the parrent')
child = Bip44Entry(tree_id=self.tree_id,
id=None,
parent=self,
xpub=child_xpub,
address_index=index,
bip32_path=bip32_path,
bip32_key=child_key)
self.child_entries[index] = child
return child
def sign_tx(hw_session: HwSessionInfo,
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 = bytes.fromhex(utxo.txid)
if prev_hash not in txes:
tx = tx_api[prev_hash]
txes[prev_hash] = tx
return txes
insight_network = 'insight_gewel'
if hw_session.app_config.is_testnet():
insight_network += '_testnet'
gewel_network = hw_session.app_config.gewel_network
c_name = hw_session.app_config.hw_coin_name
coin = coins.by_name[c_name]
url = hw_session.app_config.get_tx_api_url()
coin['bitcore'].clear()
coin['bitcore'].append(url)
tx_api = MyTxApiInsight(coin, '', hw_session.geweld_intf,
hw_session.app_config.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 = gewel_utils.bip32_path_string_to_n(utxo.bip32_path)
it = trezor_proto.TxInputType(address_n=address_n,
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 gewel_utils.get_chain_params(
gewel_network).B58_PREFIXES_SCRIPT_ADDRESS:
stype = trezor_proto.OutputScriptType.PAYTOSCRIPTHASH
logging.debug('Transaction type: PAYTOSCRIPTHASH' + str(stype))
elif out.address[0] in gewel_utils.get_chain_params(
gewel_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 = gewel_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,
hw_session.app_config.hw_coin_name,
inputs,
outputs,
prev_txes=txes)
return signed[1], inputs_amount
except exceptions.Cancelled:
raise
except Exception as e:
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')