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trezor-firmware/python/src/trezorlib/exceptions.py

58 lines
1.6 KiB
Python

# This file is part of the Trezor project.
#
# Copyright (C) 2012-2022 SatoshiLabs and contributors
#
# This library is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License version 3
# as published by the Free Software Foundation.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the License along with this library.
# If not, see <https://www.gnu.org/licenses/lgpl-3.0.html>.
from typing import TYPE_CHECKING
if TYPE_CHECKING:
from .messages import Failure
class TrezorException(Exception):
pass
class TrezorFailure(TrezorException):
def __init__(self, failure: "Failure") -> None:
self.failure = failure
self.code = failure.code
self.message = failure.message
super().__init__(self.code, self.message, self.failure)
def __str__(self) -> str:
from .messages import FailureType
types = {
getattr(FailureType, name): name
for name in dir(FailureType)
if not name.startswith("_")
}
if self.message is not None:
return f"{types[self.code]}: {self.message}"
else:
return types[self.failure.code]
class PinException(TrezorException):
pass
class Cancelled(TrezorException):
pass
class OutdatedFirmwareError(TrezorException):
pass