def callback_PassphraseRequest(self, msg):
passphrase = self.ask_for_pass_fun(msg)
if passphrase is None:
raise HardwareWalletCancelException('Cancelled')
else:
passphrase = unicodedata.normalize('NFKD', passphrase)
return keepkey_proto.PassphraseAck(passphrase=passphrase)
def callback_PassphraseRequest(self, msg):
passphrase = self.ask_for_pass_fun(msg)
if passphrase is None:
raise HardwareWalletCancelException('Cancelled')
else:
if self.passphrase_encoding in ('NFKD', 'NFC'):
passphrase = unicodedata.normalize(self.passphrase_encoding, passphrase)
else:
raise Exception('Invalid passphrase encoding value: ' + self.passphrase_encoding)
return keepkey_proto.PassphraseAck(passphrase=passphrase)
def callback_WordRequest(self, msg):
if msg.type in (trezor_proto.WordRequestType.Matrix9,
trezor_proto.WordRequestType.Matrix6):
return self.callback_RecoveryMatrix(msg)
msg = "Enter one word of mnemonic: "
word = ask_for_word_callback(msg, self.__mnemonic.wordlist)
if not word:
raise HardwareWalletCancelException('Cancelled')
return trezor_proto.WordAck(word=word)
def sign_message(hw_session: HwSessionInfo, bip32path, message):
client = hw_session.hw_client
address_n = client.expand_path(clean_bip32_path(bip32path))
try:
return client.sign_message(hw_session.app_config.hw_coin_name,
address_n, message)
except CallException as e:
if e.args and len(
e.args) >= 2 and e.args[1].lower().find('cancelled') >= 0:
raise HardwareWalletCancelException('Cancelled')
else:
raise
def callback_PinMatrixRequest(self, msg):
if msg.type == 1:
desc = 'Enter current PIN'
elif msg.type == 2:
desc = 'Enter new PIN'
elif msg.type == 3:
desc = 'Enter new PIN again'
else:
desc = 'Enter PIN'
pin = self.ask_for_pin_fun(desc)
if not pin:
raise HardwareWalletCancelException('Cancelled')
return keepkey_proto.PinMatrixAck(pin=pin)
def get_entropy(hw_device_id, len_bytes):
client = None
try:
client = connect_keepkey(hw_device_id)
if client:
client.get_entropy(len_bytes)
client.close()
else:
raise Exception('Couldn\'t connect to Trezor device.')
except CallException as e:
if not (len(e.args) >= 0 and str(e.args[1]) == 'Action cancelled by user'):
raise
else:
if client:
client.close()
raise HardwareWalletCancelException('Cancelled')
except HardwareWalletCancelException:
if client:
client.close()
raise
def callback_WordRequest(self, msg):
msg = "Enter one word of mnemonic: "
word = ask_for_word_callback(msg, self.__mnemonic.wordlist)
if not word:
raise HardwareWalletCancelException('Cancelled')
return keepkey_proto.WordAck(word=word)
def sign_message(main_ui, bip32_path, message):
client = main_ui.hw_client
# Ledger doesn't accept characters other that ascii printable:
# https://ledgerhq.github.io/btchip-doc/bitcoin-technical.html#_sign_message
message = message.encode('ascii', 'ignore')
bip32_path = clean_bip32_path(bip32_path)
ok = False
for i in range(1, 4):
info = client.signMessagePrepare(bip32_path, message)
if info['confirmationNeeded'] and info['confirmationType'] == 34:
if i == 1 or \
WndUtils.queryDlg('Another application (such as Ledger Wallet Bitcoin app) has probably taken over '
'the communication with the Ledger device.'
'\n\nTo continue, close that application and click the <b>Retry</b> button.'
'\nTo cancel, click the <b>Abort</b> button',
buttons=QMessageBox.Retry | QMessageBox.Abort,
default_button=QMessageBox.Retry, icon=QMessageBox.Warning) == QMessageBox.Retry:
# we need to reconnect the device; first, we'll try to reconnect to HW without closing the intefering
# application; it it doesn't help we'll display a message requesting the user to close the app
main_ui.disconnectHardwareWallet()
if main_ui.connectHardwareWallet():
client = main_ui.hw_client
else:
raise Exception('Hardware wallet reconnect error.')
else:
break
else:
ok = True
break
if not ok:
raise HardwareWalletCancelException('Cancelled')
try:
signature = client.signMessageSign()
except Exception as e:
logging.exception('Exception while signing message with Ledger Nano S')
raise Exception(
'Exception while signing message with Ledger Nano S. Details: ' +
str(e))
try:
pubkey = client.getWalletPublicKey(bip32_path)
except Exception as e:
logging.exception(
'Could not get public key for BIP32 path from Ledger Nano S')
raise Exception(
'Could not get public key for BIP32 path from Ledger Nano S. Details: '
+ str(e))
if len(signature) > 4:
r_length = signature[3]
r = signature[4:4 + r_length]
if len(signature) > 4 + r_length + 1:
s_length = signature[4 + r_length + 1]
if len(signature) > 4 + r_length + 2:
s = signature[4 + r_length + 2:]
if r_length == 33:
r = r[1:]
if s_length == 33:
s = s[1:]
else:
logging.error(
'client.signMessageSign() returned invalid response (code 3): '
+ signature.hex())
raise Exception('Invalid signature returned (code 3).')
else:
logging.error(
'client.signMessageSign() returned invalid response (code 2): '
+ signature.hex())
raise Exception('Invalid signature returned (code 2).')
else:
logging.error(
'client.signMessageSign() returned invalid response (code 1): ' +
signature.hex())
raise Exception('Invalid signature returned (code 1).')
return MessageSignature(
pubkey.get('address').decode('ascii'),
bytes(chr(27 + 4 + (signature[0] & 0x01)), "utf-8") + r + s)
def callback_PassphraseRequest(self, msg):
passphrase = self.ask_for_pass_fun(msg)
if not passphrase:
raise HardwareWalletCancelException('Cancelled')
return keepkey_proto.PassphraseAck(passphrase=passphrase)
