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# Copyright (c) 2014 Red Hat, 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
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Glance Store exception subclasses"""
import urllib.parse
from glance_store.i18n import _
class BackendException(Exception):
class UnsupportedBackend(BackendException):
class RedirectException(Exception):
def __init__(self, url):
self.url = urllib.parse.urlparse(url)
class GlanceStoreException(Exception):
Base Glance Store Exception
To correctly use this class, inherit from it and define
a 'message' property. That message will get printf'd
with the keyword arguments provided to the constructor.
message = _("An unknown exception occurred")
def __init__(self, message=None, **kwargs):
if not message:
message = self.message
if kwargs:
message = message % kwargs
except Exception:
self.msg = message
super(GlanceStoreException, self).__init__(message)
class MissingCredentialError(GlanceStoreException):
message = _("Missing required credential: %(required)s")
class BadAuthStrategy(GlanceStoreException):
message = _("Incorrect auth strategy, expected \"%(expected)s\" but "
"received \"%(received)s\"")
class AuthorizationRedirect(GlanceStoreException):
message = _("Redirecting to %(uri)s for authorization.")
class NotFound(GlanceStoreException):
message = _("Image %(image)s not found")
class UnknownHashingAlgo(GlanceStoreException):
message = _("Unknown hashing algorithm identifier: %(algo)s")
class UnknownScheme(GlanceStoreException):
message = _("Unknown scheme '%(scheme)s' found in URI")
class BadStoreUri(GlanceStoreException):
message = _("The Store URI was malformed: %(uri)s")
class Duplicate(GlanceStoreException):
message = _("Image %(image)s already exists")
class StorageFull(GlanceStoreException):
message = _("There is not enough disk space on the image storage media.")
class StorageWriteDenied(GlanceStoreException):
message = _("Permission to write image storage media denied.")
class AuthBadRequest(GlanceStoreException):
message = _("Connect error/bad request to Auth service at URL %(url)s.")
class AuthUrlNotFound(GlanceStoreException):
message = _("Auth service at URL %(url)s not found.")
class AuthorizationFailure(GlanceStoreException):
message = _("Authorization failed.")
class NotAuthenticated(GlanceStoreException):
message = _("You are not authenticated.")
class Forbidden(GlanceStoreException):
message = _("You are not authorized to complete this action.")
class Invalid(GlanceStoreException):
# NOTE(NiallBunting) This could be deprecated however the debtcollector
# seems to have problems deprecating this as well as the subclasses.
message = _("Data supplied was not valid.")
class BadStoreConfiguration(GlanceStoreException):
message = _("Store %(store_name)s could not be configured correctly. "
"Reason: %(reason)s")
class DriverLoadFailure(GlanceStoreException):
message = _("Driver %(driver_name)s could not be loaded.")
class StoreDeleteNotSupported(GlanceStoreException):
message = _("Deleting images from this store is not supported.")
class StoreGetNotSupported(GlanceStoreException):
message = _("Getting images from this store is not supported.")
class StoreRandomGetNotSupported(StoreGetNotSupported):
message = _("Getting images randomly from this store is not supported. "
"Offset: %(offset)s, length: %(chunk_size)s")
class StoreAddDisabled(GlanceStoreException):
message = _("Configuration for store failed. Adding images to this "
"store is disabled.")
class MaxRedirectsExceeded(GlanceStoreException):
message = _("Maximum redirects (%(redirects)s) was exceeded.")
class NoServiceEndpoint(GlanceStoreException):
message = _("Response from Keystone does not contain a Glance endpoint.")
class RegionAmbiguity(GlanceStoreException):
message = _("Multiple 'image' service matches for region %(region)s. This "
"generally means that a region is required and you have not "
"supplied one.")
class RemoteServiceUnavailable(GlanceStoreException):
message = _("Remote server where the image is present is unavailable.")
class HasSnapshot(GlanceStoreException):
message = _("The image cannot be deleted because it has snapshot(s).")
class InUseByStore(GlanceStoreException):
message = _("The image cannot be deleted because it is in use through "
"the backend store outside of Glance.")
class HostNotInitialized(GlanceStoreException):
message = _("The glance cinder store host %(host)s which will used to "
"perform nfs mount/umount operations isn't initialized.")