dbb242b776
This review implements blueprint python-request and replaces the old
http client implementation in favor of a new one based on
python-requests.
Major changes:
* raw_request and json_request removed since everything is now being
handled by the same method "_request"
* New methods that match HTTP's methods were added:
- get
- put
- post
- head
- patch
- delete
* Content-Type is now being "inferred" based on the data being sent:
- if it is file-like object it chunks the request
- if it is a python type not instance of basestring then it'll try
to serialize it to json
- Every other case will keep the incoming content-type and will send
the data as is.
* Glanceclient's HTTPSConnection implementation will be used if
no-compression flag is set to True.
Co-Author: Flavio Percoco<flaper87@gmail.com>
Change-Id: I09f70eee3e2777f52ce040296015d41649c2586a
179 lines
3.6 KiB
Python
179 lines
3.6 KiB
Python
# Copyright 2012 OpenStack Foundation
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import sys
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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 ClientException(Exception):
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"""DEPRECATED!"""
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class HTTPException(ClientException):
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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, details=None):
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self.details = details or self.__class__.__name__
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def __str__(self):
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return "%s (HTTP %s)" % (self.details, self.code)
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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 OpenStack Images 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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"""DEPRECATED!"""
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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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"""DEPRECATED!"""
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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 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, body=None):
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"""Return an instance of an HTTPException based on httplib response."""
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cls = _code_map.get(response.status_code, HTTPException)
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if body:
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details = body.replace('\n\n', '\n')
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return cls(details=details)
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return cls()
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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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class SSLConfigurationError(BaseException):
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pass
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class SSLCertificateError(BaseException):
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pass
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