177 lines
5.9 KiB
Python
177 lines
5.9 KiB
Python
# Copyright (c) 2015 Hewlett-Packard Development Company, L.P.
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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 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 sys
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import munch
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from requests import exceptions as _rex
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from shade import _log
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class OpenStackCloudException(Exception):
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log_inner_exceptions = False
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def __init__(self, message, extra_data=None, **kwargs):
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args = [message]
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if extra_data:
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if isinstance(extra_data, munch.Munch):
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extra_data = extra_data.toDict()
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args.append("Extra: {0}".format(str(extra_data)))
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super(OpenStackCloudException, self).__init__(*args, **kwargs)
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self.extra_data = extra_data
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self.inner_exception = sys.exc_info()
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self.orig_message = message
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def log_error(self, logger=None):
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if not logger:
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logger = _log.setup_logging('shade.exc')
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if self.inner_exception and self.inner_exception[1]:
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logger.error(self.orig_message, exc_info=self.inner_exception)
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def __str__(self):
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message = Exception.__str__(self)
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if (self.inner_exception and self.inner_exception[1]
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and not self.orig_message.endswith(
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str(self.inner_exception[1]))):
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message = "%s (Inner Exception: %s)" % (
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message,
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str(self.inner_exception[1]))
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if self.log_inner_exceptions:
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self.log_error()
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return message
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class OpenStackCloudCreateException(OpenStackCloudException):
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def __init__(self, resource, resource_id, extra_data=None, **kwargs):
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super(OpenStackCloudCreateException, self).__init__(
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message="Error creating {resource}: {resource_id}".format(
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resource=resource, resource_id=resource_id),
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extra_data=extra_data, **kwargs)
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self.resource_id = resource_id
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class OpenStackCloudTimeout(OpenStackCloudException):
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pass
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class OpenStackCloudUnavailableExtension(OpenStackCloudException):
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pass
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class OpenStackCloudUnavailableFeature(OpenStackCloudException):
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pass
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class OpenStackCloudHTTPError(OpenStackCloudException, _rex.HTTPError):
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def __init__(self, *args, **kwargs):
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OpenStackCloudException.__init__(self, *args, **kwargs)
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_rex.HTTPError.__init__(self, *args, **kwargs)
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class OpenStackCloudBadRequest(OpenStackCloudHTTPError):
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"""There is something wrong with the request payload.
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Possible reasons can include malformed json or invalid values to parameters
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such as flavorRef to a server create.
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"""
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class OpenStackCloudURINotFound(OpenStackCloudHTTPError):
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pass
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# Backwards compat
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OpenStackCloudResourceNotFound = OpenStackCloudURINotFound
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def _log_response_extras(response):
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# Sometimes we get weird HTML errors. This is usually from load balancers
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# or other things. Log them to a special logger so that they can be
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# toggled indepdently - and at debug level so that a person logging
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# shade.* only gets them at debug.
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if response.headers.get('content-type') != 'text/html':
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return
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try:
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if int(response.headers.get('content-length', 0)) == 0:
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return
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except Exception:
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return
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logger = _log.setup_logging('shade.http')
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if response.reason:
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logger.debug(
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"Non-standard error '{reason}' returned from {url}:".format(
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reason=response.reason,
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url=response.url))
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else:
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logger.debug(
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"Non-standard error returned from {url}:".format(
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url=response.url))
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for response_line in response.text.split('\n'):
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logger.debug(response_line)
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# Logic shamelessly stolen from requests
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def raise_from_response(response, error_message=None):
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msg = ''
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if 400 <= response.status_code < 500:
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source = "Client"
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elif 500 <= response.status_code < 600:
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source = "Server"
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else:
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return
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remote_error = "Error for url: {url}".format(url=response.url)
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try:
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details = response.json()
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# Nova returns documents that look like
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# {statusname: 'message': message, 'code': code}
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detail_keys = list(details.keys())
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if len(detail_keys) == 1:
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detail_key = detail_keys[0]
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detail_message = details[detail_key].get('message')
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if detail_message:
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remote_error += " {message}".format(message=detail_message)
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except ValueError:
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if response.reason:
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remote_error += " {reason}".format(reason=response.reason)
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except AttributeError:
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if response.reason:
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remote_error += " {reason}".format(reason=response.reason)
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_log_response_extras(response)
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if error_message:
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msg = '{error_message}. ({code}) {source} {remote_error}'.format(
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error_message=error_message,
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source=source,
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code=response.status_code,
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remote_error=remote_error)
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else:
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msg = '({code}) {source} {remote_error}'.format(
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code=response.status_code,
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source=source,
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remote_error=remote_error)
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# Special case 404 since we raised a specific one for neutron exceptions
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# before
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if response.status_code == 404:
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raise OpenStackCloudURINotFound(msg, response=response)
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elif response.status_code == 400:
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raise OpenStackCloudBadRequest(msg, response=response)
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if msg:
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raise OpenStackCloudHTTPError(msg, response=response)
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