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146 lines (119 loc) · 4.29 KB
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# -*- coding: utf-8 -*-
# MinIO Python Library for Amazon S3 Compatible Cloud Storage,
# (C) 2015-2019 MinIO, Inc.
#
# 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.
# pylint: disable=too-many-lines
"""
minio.error
~~~~~~~~~~~~~~~~~~~
This module provides custom exception classes for MinIO library
and API specific errors.
:copyright: (c) 2015, 2016, 2017 by MinIO, Inc.
:license: Apache 2.0, see LICENSE for more details.
"""
from xml.etree import ElementTree as ET
from .xml import findtext
class MinioException(Exception):
"""Base Minio exception."""
class InvalidResponseError(MinioException):
"""Raised to indicate that non-xml response from server."""
def __init__(self, code, content_type, body):
self._code = code
self._content_type = content_type
self._body = body
super().__init__(
f"non-XML response from server; "
f"Response code: {code}, Content-Type: {content_type}, Body: {body}"
)
def __reduce__(self):
return type(self), (self._code, self._content_type, self._body)
class ServerError(MinioException):
"""Raised to indicate that S3 service returning HTTP server error."""
def __init__(self, message, status_code):
self._status_code = status_code
super().__init__(message)
@property
def status_code(self):
"""Get HTTP status code."""
return self._status_code
class S3Error(MinioException):
"""
Raised to indicate that error response is received
when executing S3 operation.
"""
def __init__(self, code, message, resource, request_id, host_id,
response, bucket_name=None, object_name=None):
self._code = code
self._message = message
self._resource = resource
self._request_id = request_id
self._host_id = host_id
self._response = response
self._bucket_name = bucket_name
self._object_name = object_name
bucket_message = (
(", bucket_name: " + self._bucket_name)
if self._bucket_name else ""
)
object_message = (
(", object_name: " + self._object_name)
if self._object_name else ""
)
super().__init__(
f"S3 operation failed; code: {code}, message: {message}, "
f"resource: {resource}, request_id: {request_id}, "
f"host_id: {host_id}{bucket_message}{object_message}"
)
def __reduce__(self):
return type(self), (self._code, self._message, self._resource,
self._request_id, self._host_id, self._response,
self._bucket_name, self._object_name)
@property
def code(self):
"""Get S3 error code."""
return self._code
@property
def message(self):
"""Get S3 error message."""
return self._message
@property
def response(self):
"""Get HTTP response."""
return self._response
@classmethod
def fromxml(cls, response):
"""Create new object with values from XML element."""
element = ET.fromstring(response.data.decode())
return cls(
findtext(element, "Code"),
findtext(element, "Message"),
findtext(element, "Resource"),
findtext(element, "RequestId"),
findtext(element, "HostId"),
bucket_name=findtext(element, "BucketName"),
object_name=findtext(element, "Key"),
response=response,
)
def copy(self, code, message):
"""Make a copy with replace code and message."""
return S3Error(
code,
message,
self._resource,
self._request_id,
self._host_id,
self._response,
self._bucket_name,
self._object_name,
)