#  Copyright (C) 2021 Palantir Technologies Inc. All rights reserved.
#
#  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 ConnectionError(RuntimeError):
    """
    Raised when unable to fetch credentials due to connection error.
    """


class CredentialsError(ValueError):
    """
    Raised when invalid credentials are provided or tokens have expired.
    """


class RefreshError(ValueError):
    """
    Used to indicate that refreshing the credentials' access token failed.
    """


class CsrfError(RuntimeError):
    """
    Raised when request state does not match.
    """
