def check_libraries_available(self) -> bool:
def version_str(t):
return ".".join(str(i) for i in t)
try:
# this might raise ImportError or LibraryFoundButUnusable
library_version = self.get_library_version()
# if no exception so far, we might still raise LibraryFoundButUnusable
if (library_version == 'unknown'
or versiontuple(library_version) < self.minimum_library
or hasattr(self, "maximum_library")
and versiontuple(library_version) >= self.maximum_library):
raise LibraryFoundButUnusable(library_version=library_version)
except ImportError:
return False
except LibraryFoundButUnusable as e:
library_version = e.library_version
max_version_str = (version_str(self.maximum_library) if hasattr(
self, "maximum_library") else "inf")
self.libraries_available_message = (
_("Library version for '{}' is incompatible.").format(
self.name) +
'\nInstalled: {}, Needed: {} <= x < {}'.format(
library_version, version_str(self.minimum_library),
max_version_str))
self.logger.warning(self.libraries_available_message)
return False
return True
def perform_hw1_preflight(self):
try:
firmwareInfo = self.dongleObject.getFirmwareVersion()
firmware = firmwareInfo['version']
self.bitcoinCashSupported = versiontuple(
firmware) >= BITCOIN_CASH_SUPPORT
if not checkFirmware(
firmwareInfo) or not self.supports_bitcoin_cash():
self.dongleObject.dongle.close()
raise Exception(
"HW1 firmware version too old. Please update at "
"https://www.ledgerwallet.com")
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 Exception(
'Aborted by user - please unplug the dongle '
'and plug it again before retrying')
pin = pin.encode()
self.dongleObject.verifyPin(pin)
except BTChipException as e:
if e.sw == 0x6faa:
raise Exception(
"Dongle is temporarily locked - please unplug it and "
"replug it again")
if (e.sw & 0xFFF0) == 0x63c0:
raise Exception(
"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 Exception(
"Invalid channel.\nPlease make sure that "
"'Browser support' is disabled on your device.")
raise e
