234 lines
4.9 KiB
Python
234 lines
4.9 KiB
Python
# (C) Copyright 2014-2016 Hewlett Packard Enterprise Development LP
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import logging
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import sys
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from oslo_serialization import jsonutils
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verbose = 0
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log = logging.getLogger(__name__)
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class BaseException(Exception):
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"""An error occurred."""
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def __init__(self, message=None):
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self.message = message
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def __str__(self):
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return self.message or self.__class__.__doc__
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class CommandError(BaseException):
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"""Invalid usage of CLI."""
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class InvalidEndpoint(BaseException):
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"""The provided endpoint is invalid."""
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class CommunicationError(BaseException):
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"""Unable to communicate with server."""
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class RequestTimeoutError(BaseException):
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"""Timeout making a POST, GET, PATCH, DELETE, or PUT request to the server."""
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class KeystoneException(Exception):
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"""Base exception for all Keystone-derived exceptions."""
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# This is initialized with the exception raised by the Keystone client so
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# deriving this class from Exception instead of BaseException allows that to
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# be handled without any additional code
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pass
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class HTTPException(BaseException):
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"""Base exception for all HTTP-derived exceptions."""
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code = 'N/A'
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def __init__(self, message=None):
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super(HTTPException, self).__init__(message)
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try:
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log.error("exception: {}".format(message))
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self.error = jsonutils.loads(message)
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except Exception:
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self.error = {'error':
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{'message': self.message or self.__class__.__doc__}}
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def __str__(self):
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if 'description' in self.error:
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# Python API:
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# Expected message format:
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# {
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# "title": "Foo",
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# "description": "Bar"
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# }
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message = self.error['description']
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else:
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# Java API:
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# Expected message format:
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# {
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# "conflict":{"code":409,
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# "message":"Bar",
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# "details":"",
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# "internal_code":"Baz"}
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# }
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for key in self.error:
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message = self.error[key].get('message', 'Internal Error')
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if verbose:
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traceback = self.error['error'].get('traceback', '')
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return '%s\n%s' % (message, traceback)
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else:
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return '%s' % message
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class HTTPMultipleChoices(HTTPException):
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code = 300
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def __str__(self):
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self.details = ("Requested version of Monasca API is not"
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"available.")
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return "%s (HTTP %s) %s" % (self.__class__.__name__, self.code,
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self.details)
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class BadRequest(HTTPException):
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code = 400
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class HTTPBadRequest(BadRequest):
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pass
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class Unauthorized(HTTPException):
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code = 401
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class HTTPUnauthorized(Unauthorized):
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pass
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class Forbidden(HTTPException):
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"""DEPRECATED."""
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code = 403
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class HTTPForbidden(Forbidden):
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pass
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class NotFound(HTTPException):
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"""DEPRECATED."""
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code = 404
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class HTTPNotFound(NotFound):
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pass
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class HTTPMethodNotAllowed(HTTPException):
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code = 405
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class Conflict(HTTPException):
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"""DEPRECATED."""
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code = 409
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class HTTPConflict(Conflict):
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pass
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class OverLimit(HTTPException):
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"""DEPRECATED."""
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code = 413
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class HTTPOverLimit(OverLimit):
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pass
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class HTTPUnsupported(HTTPException):
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code = 415
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class HTTPUnProcessable(HTTPException):
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code = 422
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class HTTPInternalServerError(HTTPException):
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code = 500
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class HTTPNotImplemented(HTTPException):
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code = 501
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class HTTPBadGateway(HTTPException):
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code = 502
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class ServiceUnavailable(HTTPException):
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"""DEPRECATED."""
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code = 503
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class HTTPServiceUnavailable(ServiceUnavailable):
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pass
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# NOTE(bcwaldon): Build a mapping of HTTP codes to corresponding exception
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# classes
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_code_map = {}
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for obj_name in dir(sys.modules[__name__]):
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if obj_name.startswith('HTTP'):
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obj = getattr(sys.modules[__name__], obj_name)
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_code_map[obj.code] = obj
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def from_response(response):
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"""Return an instance of an HTTPException based on requests response."""
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cls = _code_map.get(response.status_code, HTTPException)
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return cls(response.content)
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class NoTokenLookupException(Exception):
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"""DEPRECATED."""
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pass
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class EndpointNotFound(Exception):
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"""DEPRECATED."""
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pass
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