# Copyright 2015 Dimitri Racordon
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

class MushiError(Exception):
    """Generic error class."""


class AuthenticationError(MushiError):
    """Raised when an error related to authentication occured."""


class InvalidTokenError(AuthenticationError):
    """Raised when an auth token failed validation."""


class ExpiredTokenError(InvalidTokenError):
    """Raised when an auth token failed validation because it has expired."""


class InvalidArgumentError(MushiError):
    """Raised when a function or method is called with invalid arguments."""

    def __init__(self, message=None):
        self.message = message
