# Copyright 2018-2023 Descartes Labs.
#
# 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.
"""Exceptions raised by HTTP clients."""
[docs]class ClientError(Exception):
"""Base class for all client exceptions."""
pass
[docs]class AuthError(ClientError):
"""Authentication error, improperly supplied credentials."""
pass
[docs]class OauthError(AuthError):
"""Authentication error, failure from OAuth authentication service."""
pass
[docs]class ConfigError(Exception):
"""Configuration error during initial configuration of the library."""
pass
[docs]class ServerError(Exception):
"""Server or service failure."""
status = 500
[docs]class BadRequestError(ClientError):
"""Client request with incorrect parameters."""
status = 400
[docs]class ValidationError(BadRequestError):
"""Client request with invalid parameters."""
status = 422
[docs]class NotFoundError(ClientError):
"""Resource not found."""
status = 404
[docs]class ProxyAuthenticationRequiredError(ClientError):
"""Client request needs proxy authentication.
Attributes
==========
status : int
The status code of the error response.
proxy_authenticate : Optional[str]
A `ProxyAuthenticate <https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Proxy-Authenticate>`_
header if found in the response.
"""
status = 407
def __init__(self, message, proxy_authenticate=None) -> None:
super(ProxyAuthenticationRequiredError, self).__init__(message)
self.proxy_authenticate = proxy_authenticate
[docs]class ConflictError(ClientError):
"""Client request conflicts with existing state."""
status = 409
[docs]class GoneError(ClientError):
"""Client request to a URL which has been permanently removed."""
status = 410
[docs]class RateLimitError(ClientError):
"""
Client request exceeds rate limits.
The retry_after member will contain any time limit returned
in the response.
"""
status = 429
def __init__(self, message, retry_after=None):
"""
Construct a new instance.
:param str message: The error message.
:type retry_after: str or None
:param retry_after: An indication of a
``retry-after`` timeout specified by the error response.
"""
super(RateLimitError, self).__init__(message)
self.retry_after = retry_after
[docs]class RetryWithError(ClientError):
"""Vector service query request timed out."""
status = 449
[docs]class GatewayTimeoutError(ServerError):
"""Timeout from the gateway after failing to route request to destination service."""
status = 504
[docs]class RequestCancellationError(ClientError):
"""Client cancelled the request and no status or response was received."""
