def callback_Failure(self, msg):
# BaseClient's unfortunate call() implementation forces us to
# raise exceptions on failure in order to unwind the stack.
# However, making the user acknowledge they cancelled
# gets old very quickly, so we suppress those. The NotInitialized
# one is misnamed and indicates a passphrase request was cancelled.
if msg.code in (self.types.FailureType.PinCancelled,
self.types.FailureType.ActionCancelled,
self.types.FailureType.NotInitialized):
raise UserCancelled()
raise RuntimeError(msg.message)
def check_device_dialog(self):
match = re.search(r'v([0-9])+\.[0-9]+\.[0-9]+',
self.dbb_hid.get_serial_number_string())
if match is None:
raise Exception("error detecting firmware version")
major_version = int(match.group(1))
if major_version < MIN_MAJOR_VERSION:
raise Exception(
"Please upgrade to the newest firmware using the BitBox Desktop app: https://shiftcrypto.ch/start"
)
# Set password if fresh device
if self.password is None and not self.dbb_has_password():
if not self.setupRunning:
return False # A fresh device cannot connect to an existing wallet
msg = _("An uninitialized Digital Bitbox is detected.") + " " + \
_("Enter a new password below.") + "\n\n" + \
_("REMEMBER THE PASSWORD!") + "\n\n" + \
_("You cannot access your coins or a backup without the password.") + "\n" + \
_("A backup is saved automatically when generating a new wallet.")
if self.password_dialog(msg):
reply = self.hid_send_plain(b'{"password":"******"}')
else:
return False
# Get password from user if not yet set
msg = _("Enter your Digital Bitbox password:"******"led":"blink"}')
if 'error' in reply:
self.password = None
if reply['error']['code'] == 109:
msg = _("Incorrect password entered.") + "\n\n" + \
reply['error']['message'] + "\n\n" + \
_("Enter your Digital Bitbox password:"******"Unexpected error occurred.") + "\n\n" + \
reply['error']['message'] + "\n\n" + \
_("Enter your Digital Bitbox password:"******"device":"info"}')
if reply['device']['id'] != "":
self.recover_or_erase_dialog() # Already seeded
else:
self.seed_device_dialog() # Seed if not initialized
self.mobile_pairing_dialog()
return self.isInitialized
def get_seed(self):
password = None
if self.wallet.has_keystore_encryption():
password = self.password_dialog(parent=self.d.parent())
if not password:
raise UserCancelled()
keystore = self.wallet.get_keystore()
if not keystore or not keystore.has_seed():
return
self.extension = bool(keystore.get_passphrase(password))
return keystore.get_seed(password)
def f(method):
import threading
settings = self.request_trezor_init_settings(wizard, method, self.device)
t = threading.Thread(target=self._initialize_device_safe, args=(settings, method, device_id, wizard, handler))
t.setDaemon(True)
t.start()
exit_code = wizard.loop.exec_()
if exit_code != 0:
# this method (initialize_device) was called with the expectation
# of leaving the device in an initialized state when finishing.
# signal that this is not the case:
raise UserCancelled()
def run_upgrades(self, storage):
path = storage.path
if storage.requires_split():
self.hide()
msg = _(
"The wallet '{}' contains multiple accounts, which are no longer supported since Electrum 2.7.\n\n"
"Do you want to split your wallet into multiple files?"
).format(path)
if not self.question(msg):
return
file_list = '\n'.join(storage.split_accounts())
msg = _('Your accounts have been moved to'
) + ':\n' + file_list + '\n\n' + _(
'Do you want to delete the old file') + ':\n' + path
if self.question(msg):
os.remove(path)
self.show_warning(_('The file was removed'))
# raise now, to avoid having the old storage opened
raise UserCancelled()
action = storage.get_action()
if action and storage.requires_upgrade():
raise WalletFileException(
'Incomplete wallet files cannot be upgraded.')
if action:
self.hide()
msg = _("The file '{}' contains an incompletely created wallet.\n"
"Do you want to complete its creation now?").format(path)
if not self.question(msg):
if self.question(
_("Do you want to delete '{}'?").format(path)):
os.remove(path)
self.show_warning(_('The file was removed'))
return
self.show()
self.data = storage.db.data # FIXME
self.run(action)
for k, v in self.data.items():
storage.put(k, v)
storage.write()
return
if storage.requires_upgrade():
self.upgrade_storage(storage)
def sign_transaction(self, tx, password):
if tx.is_complete():
return
try:
p2pkhTransaction = True
derivations = self.get_tx_derivations(tx)
inputhasharray = []
hasharray = []
pubkeyarray = []
# Build hasharray from inputs
for i, txin in enumerate(tx.inputs()):
if txin['type'] == 'coinbase':
self.give_error(
"Coinbase not supported") # should never happen
if txin['type'] != 'p2pkh':
p2pkhTransaction = False
for x_pubkey in txin['x_pubkeys']:
if x_pubkey in derivations:
index = derivations.get(x_pubkey)
inputPath = "%s/%d/%d" % (self.get_derivation(),
index[0], index[1])
inputHash = Hash(
binascii.unhexlify(tx.serialize_preimage(i)))
hasharray_i = {
'hash': to_hexstr(inputHash),
'keypath': inputPath
}
hasharray.append(hasharray_i)
inputhasharray.append(inputHash)
break
else:
self.give_error("No matching x_key for sign_transaction"
) # should never happen
# Build pubkeyarray from outputs
for _type, address, amount in tx.outputs():
assert _type == TYPE_ADDRESS
info = tx.output_info.get(address)
if info is not None:
index, xpubs, m = info
changePath = self.get_derivation() + "/%d/%d" % index
changePubkey = self.derive_pubkey(index[0], index[1])
pubkeyarray_i = {
'pubkey': changePubkey,
'keypath': changePath
}
pubkeyarray.append(pubkeyarray_i)
# Special serialization of the unsigned transaction for
# the mobile verification app.
# At the moment, verification only works for p2pkh transactions.
if p2pkhTransaction:
class CustomTXSerialization(Transaction):
@classmethod
def input_script(self, txin, estimate_size=False):
if txin['type'] == 'p2pkh':
return Transaction.get_preimage_script(txin)
if txin['type'] == 'p2sh':
# Multisig verification has partial support, but is disabled. This is the
# expected serialization though, so we leave it here until we activate it.
return '00' + push_script(
Transaction.get_preimage_script(txin))
raise Exception("unsupported type %s" % txin['type'])
tx_dbb_serialized = CustomTXSerialization(
tx.serialize()).serialize()
else:
# We only need this for the signing echo / verification.
tx_dbb_serialized = None
# Build sign command
dbb_signatures = []
steps = math.ceil(1.0 * len(hasharray) / self.maxInputs)
for step in range(int(steps)):
hashes = hasharray[step * self.maxInputs:(step + 1) *
self.maxInputs]
msg = {
"sign": {
"data": hashes,
"checkpub": pubkeyarray,
},
}
if tx_dbb_serialized is not None:
msg["sign"]["meta"] = to_hexstr(Hash(tx_dbb_serialized))
msg = json.dumps(msg).encode('ascii')
dbb_client = self.plugin.get_client(self)
if not dbb_client.is_paired():
raise Exception("Could not sign transaction.")
reply = dbb_client.hid_send_encrypt(msg)
if 'error' in reply:
raise Exception(reply['error']['message'])
if 'echo' not in reply:
raise Exception("Could not sign transaction.")
if self.plugin.is_mobile_paired(
) and tx_dbb_serialized is not None:
reply['tx'] = tx_dbb_serialized
self.plugin.comserver_post_notification(reply)
if steps > 1:
self.handler.show_message(_("Signing large transaction. Please be patient ...\r\n\r\n" \
"To continue, touch the Digital Bitbox's blinking light for 3 seconds. " \
"(Touch " + str(step + 1) + " of " + str(int(steps)) + ")\r\n\r\n" \
"To cancel, briefly touch the blinking light or wait for the timeout.\r\n\r\n"))
else:
self.handler.show_message(_("Signing transaction ...\r\n\r\n" \
"To continue, touch the Digital Bitbox's blinking light for 3 seconds.\r\n\r\n" \
"To cancel, briefly touch the blinking light or wait for the timeout."))
# Send twice, first returns an echo for smart verification
reply = dbb_client.hid_send_encrypt(msg)
self.handler.finished()
if 'error' in reply:
if reply["error"].get('code') in (600, 601):
# aborted via LED short touch or timeout
raise UserCancelled()
raise Exception(reply['error']['message'])
if 'sign' not in reply:
raise Exception("Could not sign transaction.")
dbb_signatures.extend(reply['sign'])
# Fill signatures
if len(dbb_signatures) != len(tx.inputs()):
raise Exception("Incorrect number of transactions signed."
) # Should never occur
for i, txin in enumerate(tx.inputs()):
num = txin['num_sig']
for pubkey in txin['pubkeys']:
signatures = list(filter(None, txin['signatures']))
if len(signatures) == num:
break # txin is complete
ii = txin['pubkeys'].index(pubkey)
signed = dbb_signatures[i]
if 'recid' in signed:
# firmware > v2.1.1
recid = int(signed['recid'], 16)
s = binascii.unhexlify(signed['sig'])
h = inputhasharray[i]
pk = MyVerifyingKey.from_signature(s,
recid,
h,
curve=SECP256k1)
pk = to_hexstr(point_to_ser(pk.pubkey.point, True))
elif 'pubkey' in signed:
# firmware <= v2.1.1
pk = signed['pubkey']
if pk != pubkey:
continue
sig_r = int(signed['sig'][:64], 16)
sig_s = int(signed['sig'][64:], 16)
sig = sigencode_der(sig_r, sig_s,
generator_secp256k1.order())
txin['signatures'][ii] = to_hexstr(sig) + '01'
tx._inputs[i] = txin
except UserCancelled:
raise
except BaseException as e:
self.give_error(e, True)
else:
print_error("Transaction is_complete", tx.is_complete())
tx.raw = tx.serialize()
def select_storage(
self, path,
get_wallet_from_daemon) -> Tuple[str, Optional[WalletStorage]]:
vbox = QVBoxLayout()
hbox = QHBoxLayout()
hbox.addWidget(QLabel(_('Wallet') + ':'))
self.name_e = QLineEdit()
hbox.addWidget(self.name_e)
button = QPushButton(_('Choose...'))
hbox.addWidget(button)
vbox.addLayout(hbox)
self.msg_label = QLabel('')
vbox.addWidget(self.msg_label)
hbox2 = QHBoxLayout()
self.pw_e = QLineEdit('', self)
self.pw_e.setFixedWidth(17 * char_width_in_lineedit())
self.pw_e.setEchoMode(2)
self.pw_label = QLabel(_('Password') + ':')
hbox2.addWidget(self.pw_label)
hbox2.addWidget(self.pw_e)
hbox2.addStretch()
vbox.addLayout(hbox2)
self.set_layout(vbox, title=_('Electrum-XZC wallet'))
self.temp_storage = WalletStorage(path, manual_upgrades=True)
wallet_folder = os.path.dirname(self.temp_storage.path)
def on_choose():
path, __ = QFileDialog.getOpenFileName(self,
"Select your wallet file",
wallet_folder)
if path:
self.name_e.setText(path)
def on_filename(filename):
path = os.path.join(wallet_folder, filename)
wallet_from_memory = get_wallet_from_daemon(path)
try:
if wallet_from_memory:
self.temp_storage = wallet_from_memory.storage
else:
self.temp_storage = WalletStorage(path,
manual_upgrades=True)
self.next_button.setEnabled(True)
except BaseException:
self.logger.exception('')
self.temp_storage = None
self.next_button.setEnabled(False)
user_needs_to_enter_password = False
if self.temp_storage:
if not self.temp_storage.file_exists():
msg =_("This file does not exist.") + '\n' \
+ _("Press 'Next' to create this wallet, or choose another file.")
elif not wallet_from_memory:
if self.temp_storage.is_encrypted_with_user_pw():
msg = _("This file is encrypted with a password.") + '\n' \
+ _('Enter your password or choose another file.')
user_needs_to_enter_password = True
elif self.temp_storage.is_encrypted_with_hw_device():
msg = _("This file is encrypted using a hardware device.") + '\n' \
+ _("Press 'Next' to choose device to decrypt.")
else:
msg = _("Press 'Next' to open this wallet.")
else:
msg = _("This file is already open in memory.") + "\n" \
+ _("Press 'Next' to create/focus window.")
else:
msg = _('Cannot read file')
self.msg_label.setText(msg)
if user_needs_to_enter_password:
self.pw_label.show()
self.pw_e.show()
self.pw_e.setFocus()
else:
self.pw_label.hide()
self.pw_e.hide()
button.clicked.connect(on_choose)
self.name_e.textChanged.connect(on_filename)
n = os.path.basename(self.temp_storage.path)
self.name_e.setText(n)
while True:
if self.loop.exec_() != 2: # 2 = next
raise UserCancelled
if self.temp_storage.file_exists(
) and not self.temp_storage.is_encrypted():
break
if not self.temp_storage.file_exists():
break
wallet_from_memory = get_wallet_from_daemon(self.temp_storage.path)
if wallet_from_memory:
raise WalletAlreadyOpenInMemory(wallet_from_memory)
if self.temp_storage.file_exists(
) and self.temp_storage.is_encrypted():
if self.temp_storage.is_encrypted_with_user_pw():
password = self.pw_e.text()
try:
self.temp_storage.decrypt(password)
break
except InvalidPassword as e:
self.show_message(title=_('Error'), msg=str(e))
continue
except BaseException as e:
self.logger.exception('')
self.show_message(title=_('Error'), msg=str(e))
raise UserCancelled()
elif self.temp_storage.is_encrypted_with_hw_device():
try:
self.run('choose_hw_device',
HWD_SETUP_DECRYPT_WALLET,
storage=self.temp_storage)
except InvalidPassword as e:
self.show_message(
title=_('Error'),
msg=_(
'Failed to decrypt using this hardware device.'
) + '\n' +
_('If you use a passphrase, make sure it is correct.'
))
self.reset_stack()
return self.select_storage(path,
get_wallet_from_daemon)
except BaseException as e:
self.logger.exception('')
self.show_message(title=_('Error'), msg=str(e))
raise UserCancelled()
if self.temp_storage.is_past_initial_decryption():
break
else:
raise UserCancelled()
else:
raise Exception('Unexpected encryption version')
return self.temp_storage.path, (
self.temp_storage if self.temp_storage.file_exists() else None) #