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trezor-firmware/trezorlib/exceptions.py

48 lines
1.4 KiB
Python

# This file is part of the Trezor project.
#
# Copyright (C) 2012-2018 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>.
class TrezorException(Exception):
pass
class TrezorFailure(TrezorException):
def __init__(self, failure):
self.failure = failure
# TODO: this is backwards compatibility with tests. it should be changed
super().__init__(self.failure.code, self.failure.message)
def __str__(self):
from .messages import FailureType
types = {
getattr(FailureType, name): name
for name in dir(FailureType)
if not name.startswith("_")
}
if self.failure.message is not None:
return "{}: {}".format(types[self.failure.code], self.failure.message)
else:
return types[self.failure.code]
class PinException(TrezorException):
pass
class Cancelled(TrezorException):
pass