def dbb_load_backup(self, show_msg=True):
backups = self.hid_send_encrypt(b'{"backup":"list"}')
if 'error' in backups:
raise UserFacingException(backups['error']['message'])
try:
f = self.handler.win.query_choice(_("Choose a backup file:"),
backups['backup'])
except Exception:
return False # Back button pushed
key = self.backup_password_dialog()
if key is None:
raise Exception('Canceled by user')
key = self.stretch_key(key)
if show_msg:
self.handler.show_message(
_("Loading backup...") + "\n\n" +
_("To continue, touch the Digital Bitbox's light for 3 seconds."
) + "\n\n" +
_("To cancel, briefly touch the light or wait for the timeout."
))
msg = ('{"seed":{"source": "backup", "key": "%s", "filename": "%s"}}' %
(key, backups['backup'][f])).encode('utf8')
hid_reply = self.hid_send_encrypt(msg)
self.handler.finished()
if 'error' in hid_reply:
raise UserFacingException(hid_reply['error']['message'])
return True
def perform_hw1_preflight(self):
try:
firmwareInfo = self.dongleObject.getFirmwareVersion()
firmware = firmwareInfo['version']
self.multiOutputSupported = versiontuple(firmware) >= versiontuple(
MULTI_OUTPUT_SUPPORT)
self.nativeSegwitSupported = versiontuple(
firmware) >= versiontuple(SEGWIT_SUPPORT)
self.segwitSupported = self.nativeSegwitSupported or (
firmwareInfo['specialVersion'] == 0x20 and
versiontuple(firmware) >= versiontuple(SEGWIT_SUPPORT_SPECIAL))
if not checkFirmware(firmwareInfo):
self.dongleObject.dongle.close()
raise UserFacingException(MSG_NEEDS_FW_UPDATE_GENERIC)
try:
self.dongleObject.getOperationMode()
except BTChipException as e:
if (e.sw == 0x6985):
self.dongleObject.dongle.close()
self.handler.get_setup()
# Acquire the new client on the next run
else:
raise e
if self.has_detached_pin_support(
self.dongleObject) and not self.is_pin_validated(
self.dongleObject) and (self.handler is not None):
remaining_attempts = self.dongleObject.getVerifyPinRemainingAttempts(
)
if remaining_attempts != 1:
msg = "Enter your Ledger PIN - remaining attempts : " + str(
remaining_attempts)
else:
msg = "Enter your Ledger PIN - WARNING : LAST ATTEMPT. If the PIN is not correct, the dongle will be wiped."
confirmed, p, pin = self.password_dialog(msg)
if not confirmed:
raise UserFacingException(
'Aborted by user - please unplug the dongle and plug it again before retrying'
)
pin = pin.encode()
self.dongleObject.verifyPin(pin)
self.dongleObject.setAlternateCoinVersion(
constants.net.ADDRTYPE_P2PKH, constants.net.ADDRTYPE_P2SH)
except BTChipException as e:
if (e.sw == 0x6faa):
raise UserFacingException(
"Dongle is temporarily locked - please unplug it and replug it again"
)
if ((e.sw & 0xFFF0) == 0x63c0):
raise UserFacingException(
"Invalid PIN - please unplug the dongle and plug it again before retrying"
)
if e.sw == 0x6f00 and e.message == 'Invalid channel':
# based on docs 0x6f00 might be a more general error, hence we also compare message to be sure
raise UserFacingException(
"Invalid channel.\n"
"Please make sure that 'Browser support' is disabled on your device."
)
raise e
def validate_op_return_output(output: TxOutput, *, max_size: int = None) -> None:
script = output.scriptpubkey
if script[0] != opcodes.OP_RETURN:
raise UserFacingException(_("Only OP_RETURN scripts are supported."))
if max_size is not None and len(script) > max_size:
raise UserFacingException(_("OP_RETURN payload too large." + "\n"
+ f"(scriptpubkey size {len(script)} > {max_size})"))
if output.value != 0:
raise UserFacingException(_("Amount for OP_RETURN output must be zero."))
def dbb_erase(self):
self.handler.show_message(_("Are you sure you want to erase the Digital Bitbox?") + "\n\n" +
_("To continue, touch the Digital Bitbox's light for 3 seconds.") + "\n\n" +
_("To cancel, briefly touch the light or wait for the timeout."))
hid_reply = self.hid_send_encrypt(b'{"reset":"__ERASE__"}')
self.handler.finished()
if 'error' in hid_reply:
raise UserFacingException(hid_reply['error']['message'])
else:
self.password = None
raise UserFacingException('Device erased')
def trezor_validate_op_return_output_and_get_data(output: TxOutput) -> bytes:
if output.type != TYPE_SCRIPT:
raise Exception("Unexpected output type: {}".format(output.type))
script = bfh(output.address)
if not (script[0] == opcodes.OP_RETURN and script[1] == len(script) - 2
and script[1] <= 75):
raise UserFacingException(
_("Only OP_RETURN scripts, with one constant push, are supported.")
)
if output.value != 0:
raise UserFacingException(
_("Amount for OP_RETURN output must be zero."))
return script[2:]
def dbb_has_password(self):
reply = self.hid_send_plain(b'{"ping":""}')
if 'ping' not in reply:
raise UserFacingException(_('Device communication error. Please unplug and replug your Digital Bitbox.'))
if reply['ping'] == 'password':
return True
return False
def dbb_generate_wallet(self):
key = self.stretch_key(self.password)
filename = ("Electrum-mona-" + time.strftime("%Y-%m-%d-%H-%M-%S") + ".pdf")
msg = ('{"seed":{"source": "create", "key": "%s", "filename": "%s", "entropy": "%s"}}' % (key, filename, to_hexstr(os.urandom(32)))).encode('utf8')
reply = self.hid_send_encrypt(msg)
if 'error' in reply:
raise UserFacingException(reply['error']['message'])
def trezor_validate_op_return_output_and_get_data(output: TxOutput) -> bytes:
validate_op_return_output(output)
script = output.scriptpubkey
if not (script[0] == opcodes.OP_RETURN and
script[1] == len(script) - 2 and script[1] <= 75):
raise UserFacingException(_("Only OP_RETURN scripts, with one constant push, are supported."))
return script[2:]
def sign_message(self, keypath: str, message: bytes,
script_type: str) -> bytes:
if self.bitbox02_device is None:
raise Exception(
"Need to setup communication first before attempting any BitBox02 calls"
)
try:
simple_type = {
"p2wpkh-p2sh": bitbox02.btc.BTCScriptConfig.P2WPKH_P2SH,
"p2wpkh": bitbox02.btc.BTCScriptConfig.P2WPKH,
}[script_type]
except KeyError:
raise UserFacingException(
"The BitBox02 does not support signing messages for this address type: {}"
.format(script_type))
_, _, signature = self.bitbox02_device.btc_sign_msg(
self._get_coin(),
bitbox02.btc.BTCScriptConfigWithKeypath(
script_config=bitbox02.btc.BTCScriptConfig(
simple_type=simple_type, ),
keypath=bip32.convert_bip32_path_to_list_of_uint32(keypath),
),
message,
)
return signature
def create_client(self, device, handler):
if device.product_key[1] == 2:
transport = self._try_webusb(device)
else:
transport = self._try_hid(device)
if not transport:
self.logger.info("cannot connect to device")
return
self.logger.info(f"connected to device at {device.path}")
client = self.client_class(transport, handler, self)
# Try a ping for device sanity
try:
client.ping('t')
except BaseException as e:
self.logger.info(f"ping failed {e}")
return None
if not client.atleast_version(*self.minimum_firmware):
msg = (_('Outdated {} firmware for device labelled {}. Please '
'download the updated firmware from {}').format(
self.device, client.label(), self.firmware_URL))
self.logger.info(msg)
if handler:
handler.show_error(msg)
else:
raise UserFacingException(msg)
return None
return client
def setup_device(self, device_info, wizard, purpose):
devmgr = self.device_manager()
device_id = device_info.device.id_
client = devmgr.client_by_id(device_id)
if client is None:
raise UserFacingException(_('Failed to create a client for this device.') + '\n' +
_('Make sure it is in the correct state.'))
client.handler = self.create_handler(wizard)
def give_error(self, message: Exception, clear_client: bool = False):
self.logger.info(message)
if not self.ux_busy:
self.handler.show_error(message)
else:
self.ux_busy = False
if clear_client:
self.client = None
raise UserFacingException(message)
def scan_and_create_client_for_device(self, *, device_id: str, wizard: 'BaseWizard') -> 'HardwareClientBase':
devmgr = self.device_manager()
client = wizard.run_task_without_blocking_gui(
task=partial(devmgr.client_by_id, device_id))
if client is None:
raise UserFacingException(_('Failed to create a client for this device.') + '\n' +
_('Make sure it is in the correct state.'))
client.handler = self.create_handler(wizard)
return client
def give_error(self, message, clear_client=False):
_logger.info(message)
if not self.signing:
self.handler.show_error(message)
else:
self.signing = False
if clear_client:
self.client = None
raise UserFacingException(message)
def catch_exception(self, *args, **kwargs):
try:
return func(self, *args, **kwargs)
except BTChipException as e:
if e.sw == 0x6982:
raise UserFacingException(
_('Your Ledger is locked. Please unlock it.'))
else:
raise
def checkDevice(self):
if not self.preflightDone:
try:
self.perform_hw1_preflight()
except BTChipException as e:
if (e.sw == 0x6d00 or e.sw == 0x6700):
raise UserFacingException(
_("Device not in Bitcoin mode")) from e
raise e
self.preflightDone = True
def manipulate_keystore_dict_during_wizard_setup(self, d: dict):
master_xpub = self.dev.master_xpub
if master_xpub is not None:
try:
node = BIP32Node.from_xkey(master_xpub)
except InvalidMasterKeyVersionBytes:
raise UserFacingException(
_('Invalid xpub magic. Make sure your {} device is set to the correct chain.'
).format(self.device) + ' ' +
_('You might have to unplug and plug it in again.')
) from None
d['ckcc_xpub'] = master_xpub
def sign_transaction(self, tx, password):
if tx.is_complete():
return
# previous transactions used as inputs
prev_tx = {}
for txin in tx.inputs():
tx_hash = txin.prevout.txid.hex()
if txin.utxo is None:
raise UserFacingException(_('Missing previous tx.'))
prev_tx[tx_hash] = txin.utxo
self.plugin.sign_transaction(self, tx, prev_tx)
def setup_device(self, device_info, wizard, purpose):
devmgr = self.device_manager()
device_id = device_info.device.id_
client = devmgr.client_by_id(device_id)
if client is None:
raise UserFacingException(
_('Failed to create a client for this device.') + '\n' +
_('Make sure it is in the correct state.'))
client.handler = self.create_handler(wizard)
client.get_xpub(
"m/44'/22'",
'standard') # TODO replace by direct derivation once Nano S > 1.1
def setup_device(self, device_info, wizard, purpose):
devmgr = self.device_manager()
device_id = device_info.device.id_
client = devmgr.client_by_id(device_id)
if client is None:
raise UserFacingException(_('Failed to create a client for this device.') + '\n' +
_('Make sure it is in the correct state.'))
# fixme: we should use: client.handler = wizard
client.handler = self.create_handler(wizard)
if not device_info.initialized:
self.initialize_device(device_id, wizard, client.handler)
client.get_xpub('m', 'standard')
client.used()
def btc_multisig_config(
self,
coin,
bip32_path: List[int],
wallet: Multisig_Wallet,
xtype: str,
):
"""
Set and get a multisig config with the current device and some other arbitrary xpubs.
Registers it on the device if not already registered.
xtype: 'p2wsh' | 'p2wsh-p2sh'
"""
assert xtype in ("p2wsh", "p2wsh-p2sh")
if self.bitbox02_device is None:
raise Exception(
"Need to setup communication first before attempting any BitBox02 calls"
)
account_keypath = bip32_path[:-2]
xpubs = wallet.get_master_public_keys()
our_xpub = self.get_xpub(
bip32.convert_bip32_intpath_to_strpath(account_keypath), xtype)
multisig_config = bitbox02.btc.BTCScriptConfig(
multisig=bitbox02.btc.BTCScriptConfig.Multisig(
threshold=wallet.m,
xpubs=[util.parse_xpub(xpub) for xpub in xpubs],
our_xpub_index=xpubs.index(our_xpub),
script_type={
"p2wsh": bitbox02.btc.BTCScriptConfig.Multisig.P2WSH,
"p2wsh-p2sh":
bitbox02.btc.BTCScriptConfig.Multisig.P2WSH_P2SH,
}[xtype]))
is_registered = self.bitbox02_device.btc_is_script_config_registered(
coin, multisig_config, account_keypath)
if not is_registered:
name = self.handler.name_multisig_account()
try:
self.bitbox02_device.btc_register_script_config(
coin=coin,
script_config=multisig_config,
keypath=account_keypath,
name=name,
)
except bitbox02.DuplicateEntryException:
raise
except:
raise UserFacingException(
"Failed to register multisig\naccount configuration on BitBox02"
)
return multisig_config
def get_xpub(self, bip32_path, xtype):
assert xtype in ColdcardPlugin.SUPPORTED_XTYPES
_logger.info('Derive xtype = %r' % xtype)
xpub = self.dev.send_recv(CCProtocolPacker.get_xpub(bip32_path), timeout=5000)
# TODO handle timeout?
# change type of xpub to the requested type
try:
node = BIP32Node.from_xkey(xpub)
except InvalidMasterKeyVersionBytes:
raise UserFacingException(_('Invalid xpub magic. Make sure your {} device is set to the correct chain.')
.format(self.device)) from None
if xtype != 'standard':
xpub = node._replace(xtype=xtype).to_xpub()
return xpub
def get_xpub(self, bip32_path, xtype):
self.checkDevice()
# bip32_path is of the form 44'/0'/1'
# S-L-O-W - we don't handle the fingerprint directly, so compute
# it manually from the previous node
# This only happens once so it's bearable
#self.get_client() # prompt for the PIN before displaying the dialog if necessary
#self.handler.show_message("Computing master public key")
if xtype in ['p2wpkh', 'p2wsh'] and not self.supports_native_segwit():
raise UserFacingException(MSG_NEEDS_FW_UPDATE_SEGWIT)
if xtype in ['p2wpkh-p2sh', 'p2wsh-p2sh'
] and not self.supports_segwit():
raise UserFacingException(MSG_NEEDS_FW_UPDATE_SEGWIT)
splitPath = bip32_path.split('/')
if splitPath[0] == 'm':
splitPath = splitPath[1:]
bip32_path = bip32_path[2:]
fingerprint = 0
if len(splitPath) > 1:
prevPath = "/".join(splitPath[0:len(splitPath) - 1])
nodeData = self.dongleObject.getWalletPublicKey(prevPath)
publicKey = compress_public_key(nodeData['publicKey'])
h = hashlib.new('ripemd160')
h.update(hashlib.sha256(publicKey).digest())
fingerprint = unpack(">I", h.digest()[0:4])[0]
nodeData = self.dongleObject.getWalletPublicKey(bip32_path)
publicKey = compress_public_key(nodeData['publicKey'])
depth = len(splitPath)
lastChild = splitPath[len(splitPath) - 1].split('\'')
childnum = int(lastChild[0]) if len(
lastChild) == 1 else 0x80000000 | int(lastChild[0])
return BIP32Node(xtype=xtype,
eckey=ecc.ECPubkey(publicKey),
chaincode=nodeData['chainCode'],
depth=depth,
fingerprint=self.i4b(fingerprint),
child_number=self.i4b(childnum)).to_xpub()
def get_xpub(self, bip32_path, xtype):
self.checkDevice()
# bip32_path is of the form 44'/0'/1'
# S-L-O-W - we don't handle the fingerprint directly, so compute
# it manually from the previous node
# This only happens once so it's bearable
#self.get_client() # prompt for the PIN before displaying the dialog if necessary
#self.handler.show_message("Computing master public key")
if xtype in ['p2wpkh', 'p2wsh'] and not self.supports_native_segwit():
raise UserFacingException(MSG_NEEDS_FW_UPDATE_SEGWIT)
if xtype in ['p2wpkh-p2sh', 'p2wsh-p2sh'
] and not self.supports_segwit():
raise UserFacingException(MSG_NEEDS_FW_UPDATE_SEGWIT)
bip32_path = bip32.normalize_bip32_derivation(bip32_path)
bip32_intpath = bip32.convert_bip32_path_to_list_of_uint32(bip32_path)
bip32_path = bip32_path[2:] # cut off "m/"
if len(bip32_intpath) >= 1:
prevPath = bip32.convert_bip32_intpath_to_strpath(
bip32_intpath[:-1])[2:]
nodeData = self.dongleObject.getWalletPublicKey(prevPath)
publicKey = compress_public_key(nodeData['publicKey'])
fingerprint_bytes = hash_160(publicKey)[0:4]
childnum_bytes = bip32_intpath[-1].to_bytes(length=4,
byteorder="big")
else:
fingerprint_bytes = bytes(4)
childnum_bytes = bytes(4)
nodeData = self.dongleObject.getWalletPublicKey(bip32_path)
publicKey = compress_public_key(nodeData['publicKey'])
depth = len(bip32_intpath)
return BIP32Node(xtype=xtype,
eckey=ecc.ECPubkey(bytes(publicKey)),
chaincode=nodeData['chainCode'],
depth=depth,
fingerprint=fingerprint_bytes,
child_number=childnum_bytes).to_xpub()
def recover_or_erase_dialog(self):
msg = _("The Digital Bitbox is already seeded. Choose an option:") + "\n"
choices = [
(_("Create a wallet using the current seed")),
(_("Load a wallet from the micro SD card (the current seed is overwritten)")),
(_("Erase the Digital Bitbox"))
]
reply = self.handler.query_choice(msg, choices)
if reply is None:
return # user cancelled
if reply == 2:
self.dbb_erase()
elif reply == 1:
if not self.dbb_load_backup():
return
else:
if self.hid_send_encrypt(b'{"device":"info"}')['device']['lock']:
raise UserFacingException(_("Full 2FA enabled. This is not supported yet."))
# Use existing seed
self.isInitialized = True
def sign_transaction(self, tx, password):
if tx.is_complete():
return
# previous transactions used as inputs
prev_tx = {}
# path of the xpubs that are involved
xpub_path = {}
for txin in tx.inputs():
pubkeys, x_pubkeys = tx.get_sorted_pubkeys(txin)
tx_hash = txin['prevout_hash']
if txin.get('prev_tx') is None and not Transaction.is_segwit_input(txin):
raise UserFacingException(_('Offline signing with {} is not supported for legacy inputs.').format(self.device))
prev_tx[tx_hash] = txin['prev_tx']
for x_pubkey in x_pubkeys:
if not is_xpubkey(x_pubkey):
continue
xpub, s = parse_xpubkey(x_pubkey)
if xpub == self.get_master_public_key():
xpub_path[xpub] = self.get_derivation()
self.plugin.sign_transaction(self, tx, prev_tx, xpub_path)
def setup_device(self, device_info, wizard, purpose):
devmgr = self.device_manager()
device_id = device_info.device.id_
client = devmgr.client_by_id(device_id)
if client is None:
raise UserFacingException(_('Failed to create a client for this device.') + '\n' +
_('Make sure it is in the correct state.'))
if not client.is_uptodate():
msg = (_('Outdated {} firmware for device labelled {}. Please '
'download the updated firmware from {}')
.format(self.device, client.label(), self.firmware_URL))
raise OutdatedHwFirmwareException(msg)
# fixme: we should use: client.handler = wizard
client.handler = self.create_handler(wizard)
if not device_info.initialized:
self.initialize_device(device_id, wizard, client.handler)
is_creating_wallet = purpose == HWD_SETUP_NEW_WALLET
client.get_xpub('m', 'standard', creating=is_creating_wallet)
client.used()
def decrypt_message(self, pubkey, message, password):
raise UserFacingException(
_('Encryption and decryption are currently not supported for {}').
format(self.device))
def decrypt_message(self, sequence, message, password):
raise UserFacingException(
_('Encryption and decryption are not implemented by {}').format(
self.device))
def sign_transaction(self, tx: Transaction, password):
if tx.is_complete():
return
client = self.get_client()
inputs = []
inputsPaths = []
pubKeys = []
chipInputs = []
redeemScripts = []
signatures = []
changePath = ""
output = None
p2shTransaction = False
segwitTransaction = False
pin = ""
self.get_client(
) # prompt for the PIN before displaying the dialog if necessary
# Fetch inputs of the transaction to sign
derivations = self.get_tx_derivations(tx)
for txin in tx.inputs():
if txin['type'] == 'coinbase':
self.give_error(
"Coinbase not supported") # should never happen
if txin['type'] in ['p2sh']:
p2shTransaction = True
if txin['type'] in ['p2wpkh-p2sh', 'p2wsh-p2sh']:
if not self.get_client_electrum().supports_segwit():
self.give_error(MSG_NEEDS_FW_UPDATE_SEGWIT)
segwitTransaction = True
if txin['type'] in ['p2wpkh', 'p2wsh']:
if not self.get_client_electrum().supports_native_segwit():
self.give_error(MSG_NEEDS_FW_UPDATE_SEGWIT)
segwitTransaction = True
pubkeys, x_pubkeys = tx.get_sorted_pubkeys(txin)
for i, x_pubkey in enumerate(x_pubkeys):
if x_pubkey in derivations:
signingPos = i
s = derivations.get(x_pubkey)
hwAddress = "%s/%d/%d" % (self.get_derivation()[2:], s[0],
s[1])
break
else:
self.give_error("No matching x_key for sign_transaction"
) # should never happen
redeemScript = Transaction.get_preimage_script(txin)
txin_prev_tx = txin.get('prev_tx')
if txin_prev_tx is None and not Transaction.is_segwit_input(txin):
raise UserFacingException(
_('Offline signing with {} is not supported for legacy inputs.'
).format(self.device))
txin_prev_tx_raw = txin_prev_tx.raw if txin_prev_tx else None
inputs.append([
txin_prev_tx_raw, txin['prevout_n'], redeemScript,
txin['prevout_hash'], signingPos,
txin.get('sequence', 0xffffffff - 1),
txin.get('value')
])
inputsPaths.append(hwAddress)
pubKeys.append(pubkeys)
# Sanity check
if p2shTransaction:
for txin in tx.inputs():
if txin['type'] != 'p2sh':
self.give_error(
"P2SH / regular input mixed in same transaction not supported"
) # should never happen
txOutput = var_int(len(tx.outputs()))
for o in tx.outputs():
output_type, addr, amount = o.type, o.address, o.value
txOutput += int_to_hex(amount, 8)
script = tx.pay_script(output_type, addr)
txOutput += var_int(len(script) // 2)
txOutput += script
txOutput = bfh(txOutput)
# Recognize outputs
# - only one output and one change is authorized (for hw.1 and nano)
# - at most one output can bypass confirmation (~change) (for all)
if not p2shTransaction:
if not self.get_client_electrum().supports_multi_output():
if len(tx.outputs()) > 2:
self.give_error(
"Transaction with more than 2 outputs not supported")
has_change = False
any_output_on_change_branch = is_any_tx_output_on_change_branch(tx)
for o in tx.outputs():
assert o.type == TYPE_ADDRESS
info = tx.output_info.get(o.address)
if (info is not None) and len(tx.outputs()) > 1 \
and not has_change:
index = info.address_index
# prioritise hiding outputs on the 'change' branch from user
# because no more than one change address allowed
if info.is_change == any_output_on_change_branch:
changePath = self.get_derivation(
)[2:] + "/%d/%d" % index
has_change = True
else:
output = o.address
else:
output = o.address
self.handler.show_message(
_("Confirm Transaction on your Ledger device..."))
try:
# Get trusted inputs from the original transactions
for utxo in inputs:
sequence = int_to_hex(utxo[5], 4)
if segwitTransaction:
tmp = bfh(utxo[3])[::-1]
tmp += bfh(int_to_hex(utxo[1], 4))
tmp += bfh(int_to_hex(utxo[6], 8)) # txin['value']
chipInputs.append({
'value': tmp,
'witness': True,
'sequence': sequence
})
redeemScripts.append(bfh(utxo[2]))
elif not p2shTransaction:
txtmp = bitcoinTransaction(bfh(utxo[0]))
trustedInput = self.get_client().getTrustedInput(
txtmp, utxo[1])
trustedInput['sequence'] = sequence
chipInputs.append(trustedInput)
redeemScripts.append(txtmp.outputs[utxo[1]].script)
else:
tmp = bfh(utxo[3])[::-1]
tmp += bfh(int_to_hex(utxo[1], 4))
chipInputs.append({'value': tmp, 'sequence': sequence})
redeemScripts.append(bfh(utxo[2]))
# Sign all inputs
firstTransaction = True
inputIndex = 0
rawTx = tx.serialize_to_network()
self.get_client().enableAlternate2fa(False)
if segwitTransaction:
self.get_client().startUntrustedTransaction(
True,
inputIndex,
chipInputs,
redeemScripts[inputIndex],
version=tx.version)
# we don't set meaningful outputAddress, amount and fees
# as we only care about the alternateEncoding==True branch
outputData = self.get_client().finalizeInput(
b'', 0, 0, changePath, bfh(rawTx))
outputData['outputData'] = txOutput
if outputData['confirmationNeeded']:
outputData['address'] = output
self.handler.finished()
pin = self.handler.get_auth(
outputData
) # does the authenticate dialog and returns pin
if not pin:
raise UserWarning()
self.handler.show_message(
_("Confirmed. Signing Transaction..."))
while inputIndex < len(inputs):
singleInput = [chipInputs[inputIndex]]
self.get_client().startUntrustedTransaction(
False,
0,
singleInput,
redeemScripts[inputIndex],
version=tx.version)
inputSignature = self.get_client().untrustedHashSign(
inputsPaths[inputIndex], pin, lockTime=tx.locktime)
inputSignature[0] = 0x30 # force for 1.4.9+
signatures.append(inputSignature)
inputIndex = inputIndex + 1
else:
while inputIndex < len(inputs):
self.get_client().startUntrustedTransaction(
firstTransaction,
inputIndex,
chipInputs,
redeemScripts[inputIndex],
version=tx.version)
# we don't set meaningful outputAddress, amount and fees
# as we only care about the alternateEncoding==True branch
outputData = self.get_client().finalizeInput(
b'', 0, 0, changePath, bfh(rawTx))
outputData['outputData'] = txOutput
if outputData['confirmationNeeded']:
outputData['address'] = output
self.handler.finished()
pin = self.handler.get_auth(
outputData
) # does the authenticate dialog and returns pin
if not pin:
raise UserWarning()
self.handler.show_message(
_("Confirmed. Signing Transaction..."))
else:
# Sign input with the provided PIN
inputSignature = self.get_client().untrustedHashSign(
inputsPaths[inputIndex], pin, lockTime=tx.locktime)
inputSignature[0] = 0x30 # force for 1.4.9+
signatures.append(inputSignature)
inputIndex = inputIndex + 1
firstTransaction = False
except UserWarning:
self.handler.show_error(_('Cancelled by user'))
return
except BTChipException as e:
if e.sw in (0x6985, 0x6d00): # cancelled by user
return
elif e.sw == 0x6982:
raise # pin lock. decorator will catch it
else:
self.logger.exception('')
self.give_error(e, True)
except BaseException as e:
self.logger.exception('')
self.give_error(e, True)
finally:
self.handler.finished()
for i, txin in enumerate(tx.inputs()):
signingPos = inputs[i][4]
tx.add_signature_to_txin(i, signingPos, bh2u(signatures[i]))
tx.raw = tx.serialize()
