499 lines
15 KiB
Python
499 lines
15 KiB
Python
# Copyright 2014
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# The Cloudscaling Group, Inc.
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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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# 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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"""ec2api base exception handling.
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Includes decorator for re-raising ec2api-type exceptions.
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SHOULD include dedicated exception logging.
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"""
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from oslo_config import cfg
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from oslo_log import log as logging
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from ec2api.i18n import _
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LOG = logging.getLogger(__name__)
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exc_log_opts = [
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cfg.BoolOpt('fatal_exception_format_errors',
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default=False,
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help='Make exception message format errors fatal'),
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]
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CONF = cfg.CONF
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CONF.register_opts(exc_log_opts)
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class EC2APIException(Exception):
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"""Base EC2 API Exception
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To correctly use this class, inherit from it and define
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a 'msg_fmt' property. That msg_fmt will get printf'd
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with the keyword arguments provided to the constructor.
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"""
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msg_fmt = _('An unknown exception occurred.')
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def __init__(self, message=None, **kwargs):
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self.kwargs = kwargs
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if not message:
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try:
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message = self.msg_fmt % kwargs
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except Exception as e:
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# kwargs doesn't match a variable in the message
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# log the issue and the kwargs
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LOG.exception('Exception in string format operation for '
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'%s exception', self.__class__.__name__)
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for name, value in kwargs.items():
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LOG.error('%s: %s' % (name, value))
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if CONF.fatal_exception_format_errors:
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raise e
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else:
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# at least get the core message out if something happened
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message = self.msg_fmt
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elif not isinstance(message, str):
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LOG.error("Message '%(msg)s' for %(ex)s exception is not "
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"a string",
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{'msg': message, 'ex': self.__class__.__name__})
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if CONF.fatal_exception_format_errors:
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raise TypeError(_('Invalid exception message format'))
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else:
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message = self.msg_fmt
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super(EC2APIException, self).__init__(message)
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def format_message(self):
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# NOTE(mrodden): use the first argument to the python Exception object
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# which should be our full EC2APIException message, (see __init__)
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return self.args[0]
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# Internal ec2api exceptions
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class EC2APIConfigNotFound(EC2APIException):
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msg_fmt = _("Could not find config at %(path)s")
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class EC2APIPasteAppNotFound(EC2APIException):
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msg_fmt = _("Could not load paste app '%(name)s' from %(path)s")
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class EC2KeystoneDiscoverFailure(EC2APIException):
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msg_fmt = _("Could not discover keystone versions.")
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class EC2DBInvalidOsIdUpdate(EC2APIException):
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msg_fmt = _('Invalid update of os_id of %(item_id)s item '
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'from %(old_os_id)s to %(new_os_id)s')
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class EC2DBDuplicateEntry(EC2APIException):
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msg_fmt = _('Entry %(id)s already exists in DB.')
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# Internal ec2api metadata exceptions
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class EC2MetadataException(EC2APIException):
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pass
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class EC2MetadataNotFound(EC2MetadataException):
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pass
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class EC2MetadataInvalidAddress(EC2MetadataException):
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pass
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# Intermediate exception classes to organize AWS exception hierarchy
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class EC2Exception(EC2APIException):
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"""Base EC2 compliant exception
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To correctly use this class, inherit from it and define
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a 'ec2_code' property if a new class name doesn't coincide with
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AWS Error Code.
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"""
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code = 400
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class EC2InvalidException(EC2Exception):
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pass
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class EC2IncorrectStateException(EC2Exception):
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pass
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class EC2DuplicateException(EC2InvalidException):
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pass
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class EC2InUseException(EC2InvalidException):
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pass
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class EC2NotFoundException(EC2InvalidException):
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pass
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class EC2OverlimitException(EC2Exception):
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pass
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# AWS compliant exceptions
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class Unsupported(EC2Exception):
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msg_fmt = _("The specified request is unsupported. %(reason)s")
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class UnsupportedOperation(EC2Exception):
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msg_fmt = _('The specified request includes an unsupported operation.')
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class OperationNotPermitted(EC2Exception):
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msg_fmt = _('The specified operation is not allowed.')
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class InvalidRequest(EC2InvalidException):
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msg_fmt = _('The request received was invalid.')
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class InvalidAttribute(EC2InvalidException):
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msg_fmt = _("Attribute not supported: %(attr)s")
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class InvalidID(EC2InvalidException):
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msg_fmt = _("The ID '%(id)s' is not valid")
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class InvalidInput(EC2InvalidException):
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msg_fmt = _("Invalid input received: %(reason)s")
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class AuthFailure(EC2InvalidException):
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msg_fmt = _('Not authorized.')
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class ValidationError(EC2InvalidException):
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msg_fmt = _("The input fails to satisfy the constraints "
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"specified by an AWS service: '%(reason)s'")
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class MissingInput(EC2InvalidException):
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pass
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class MissingParameter(EC2InvalidException):
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msg_fmt = _("The required parameter '%(param)s' is missing")
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class InvalidParameter(EC2InvalidException):
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msg_fmt = _("The property '%(name)s' is not valid")
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class InvalidParameterValue(EC2InvalidException):
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msg_fmt = _("Value (%(value)s) for parameter %(parameter)s is invalid. "
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"%(reason)s")
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class InvalidFilter(EC2InvalidException):
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msg_fmt = _('The filter is invalid.')
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class InvalidParameterCombination(EC2InvalidException):
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msg_fmt = _('The combination of parameters in incorrect')
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class InvalidVpcRange(EC2InvalidException):
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ec2_code = 'InvalidVpc.Range'
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msg_fmt = _("The CIDR '%(cidr_block)s' is invalid.")
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class InvalidVpcState(EC2InvalidException):
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msg_fmt = _('VPC %(vpc_id)s is currently attached to '
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'the Virtual Private Gateway %(vgw_id)s')
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class InvalidSubnetRange(EC2InvalidException):
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ec2_code = 'InvalidSubnet.Range'
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msg_fmt = _("The CIDR '%(cidr_block)s' is invalid.")
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class InvalidSubnetConflict(EC2InvalidException):
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ec2_code = 'InvalidSubnet.Conflict'
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msg_fmt = _("The CIDR '%(cidr_block)s' conflicts with another subnet")
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class InvalidInstanceId(EC2InvalidException):
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ec2_code = 'InvalidInstanceID'
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msg_fmt = _("There are multiple interfaces attached to instance "
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"'%(instance_id)s'. Please specify an interface ID for "
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"the operation instead.")
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class InvalidSnapshotIDMalformed(EC2InvalidException):
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ec2_code = 'InvalidSnapshotID.Malformed'
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# TODO(ft): Change the message with the real AWS message
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msg_fmg = _('The snapshot %(id)s ID is not valid')
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class InvalidBlockDeviceMapping(EC2InvalidException):
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pass
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class IncorrectState(EC2IncorrectStateException):
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msg_fmt = _("The resource is in incorrect state for the request - reason: "
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"'%(reason)s'")
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class DependencyViolation(EC2IncorrectStateException):
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msg_fmt = _('Object %(obj1_id)s has dependent resource %(obj2_id)s')
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class CannotDelete(EC2IncorrectStateException):
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msg_fmt = _('Cannot delete the default VPC security group')
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class ResourceAlreadyAssociated(EC2IncorrectStateException):
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ec2_code = 'Resource.AlreadyAssociated'
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class GatewayNotAttached(EC2IncorrectStateException):
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ec2_code = 'Gateway.NotAttached'
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msg_fmt = _("resource %(gw_id)s is not attached to network %(vpc_id)s")
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class IncorrectInstanceState(EC2IncorrectStateException):
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msg_fmt = _("The instance '%(instance_id)s' is not in a state from which "
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"the requested operation can be performed.")
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class InvalidAMIIDUnavailable(EC2IncorrectStateException):
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ec2_code = 'InvalidAMIID.Unavailable'
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# TODO(ft): Change the message with the real AWS message
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msg_fmt = _("Image %(image_id)s is not active.")
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class InvalidNetworkInterfaceInUse(EC2InUseException):
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ec2_code = 'InvalidNetworkInterface.InUse'
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msg_fmt = _('Interface: %(interface_ids)s in use.')
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class InvalidIPAddressInUse(EC2InUseException):
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ec2_code = 'InvalidIPAddress.InUse'
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msg_fmt = _('Address %(ip_address)s is in use.')
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class InvalidKeyPairDuplicate(EC2DuplicateException):
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ec2_code = 'InvalidKeyPair.Duplicate'
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msg_fmt = _("Key pair '%(key_name)s' already exists.")
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class InvalidPermissionDuplicate(EC2DuplicateException):
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ec2_code = 'InvalidPermission.Duplicate'
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msg_fmt = _('The specified rule already exists for that security group.')
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class InvalidGroupDuplicate(EC2DuplicateException):
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ec2_code = 'InvalidGroup.Duplicate'
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msg_fmt = _("Security group '%(name)s' already exists.")
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class RouteAlreadyExists(EC2DuplicateException):
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msg_fmt = _('The route identified by %(destination_cidr_block)s '
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'already exists.')
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class InvalidCustomerGatewayDuplicateIpAddress(EC2DuplicateException):
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ec2_code = 'InvalidCustomerGateway.DuplicateIpAddress'
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msg_fmt = _('Conflict among chosen gateway IP addresses.')
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class InvalidVpcIDNotFound(EC2NotFoundException):
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ec2_code = 'InvalidVpcID.NotFound'
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msg_fmt = _("The vpc ID '%(id)s' does not exist")
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class InvalidInternetGatewayIDNotFound(EC2NotFoundException):
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ec2_code = 'InvalidInternetGatewayID.NotFound'
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msg_fmt = _("The internetGateway ID '%(id)s' does not exist")
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class InvalidSubnetIDNotFound(EC2NotFoundException):
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ec2_code = 'InvalidSubnetID.NotFound'
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msg_fmt = _("The subnet ID '%(id)s' does not exist")
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class InvalidNetworkInterfaceIDNotFound(EC2NotFoundException):
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ec2_code = 'InvalidNetworkInterfaceID.NotFound'
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msg_fmt = _("Network interface %(id)s could not "
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"be found.")
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class InvalidAttachmentIDNotFound(EC2NotFoundException):
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ec2_code = 'InvalidAttachmentID.NotFound'
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msg_fmt = _("Attachment %(id)s could not "
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"be found.")
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class InvalidInstanceIDNotFound(EC2NotFoundException):
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ec2_code = 'InvalidInstanceID.NotFound'
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msg_fmt = _("The instance ID '%(id)s' does not exist")
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class InvalidDhcpOptionsIDNotFound(EC2NotFoundException):
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ec2_code = 'InvalidDhcpOptionsID.NotFound'
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msg_fmt = _("The dhcp options ID '%(id)s' does not exist")
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class InvalidAddressNotFound(EC2NotFoundException):
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ec2_code = 'InvalidAddress.NotFound'
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msg_fmt = _('The specified elastic IP address %(ip)s cannot be found.')
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class InvalidAllocationIDNotFound(EC2NotFoundException):
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ec2_code = 'InvalidAllocationID.NotFound'
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msg_fmt = _("The allocation ID '%(id)s' does not exist")
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class InvalidAssociationIDNotFound(EC2NotFoundException):
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ec2_code = 'InvalidAssociationID.NotFound'
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msg_fmt = _("The association ID '%(id)s' does not exist")
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class InvalidSecurityGroupIDNotFound(EC2NotFoundException):
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ec2_code = 'InvalidSecurityGroupID.NotFound'
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msg_fmt = _("The securityGroup ID '%(id)s' does not exist")
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class InvalidGroupNotFound(EC2NotFoundException):
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ec2_code = 'InvalidGroup.NotFound'
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msg_fmt = _("The security group ID '%(id)s' does not exist")
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class InvalidPermissionNotFound(EC2NotFoundException):
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ec2_code = 'InvalidPermission.NotFound'
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msg_fmg = _('The specified permission does not exist')
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class InvalidRouteTableIDNotFound(EC2NotFoundException):
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ec2_code = 'InvalidRouteTableID.NotFound'
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msg_fmt = _("The routeTable ID '%(id)s' does not exist")
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class InvalidRouteNotFound(EC2NotFoundException):
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ec2_code = 'InvalidRoute.NotFound'
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msg_fmt = _('No route with destination-cidr-block '
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'%(destination_cidr_block)s in route table %(route_table_id)s')
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class InvalidAMIIDNotFound(EC2NotFoundException):
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ec2_code = 'InvalidAMIID.NotFound'
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msg_fmt = _("The image id '[%(id)s]' does not exist")
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class InvalidVolumeNotFound(EC2NotFoundException):
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ec2_code = 'InvalidVolume.NotFound'
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msg_fmt = _("The volume '%(id)s' does not exist.")
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class InvalidSnapshotNotFound(EC2NotFoundException):
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ec2_code = 'InvalidSnapshot.NotFound'
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msg_fmt = _("Snapshot %(id)s could not be found.")
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class InvalidKeypairNotFound(EC2NotFoundException):
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ec2_code = 'InvalidKeyPair.NotFound'
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msg_fmt = _("Keypair %(id)s is not found")
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class InvalidAvailabilityZoneNotFound(EC2NotFoundException):
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ec2_code = 'InvalidAvailabilityZone.NotFound'
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msg_fmt = _("Availability zone %(id)s not found")
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class InvalidGatewayIDNotFound(EC2NotFoundException):
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ec2_code = 'InvalidGatewayID.NotFound'
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msg_fmt = _("The gateway ID '%(id)s' does not exist")
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class InvalidVpnGatewayIDNotFound(EC2NotFoundException):
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ec2_code = 'InvalidVpnGatewayID.NotFound'
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msg_fmt = _("The vpnGateway ID '%(id)s' does not exist")
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class InvalidCustomerGatewayIDNotFound(EC2NotFoundException):
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ec2_code = 'InvalidCustomerGatewayID.NotFound'
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msg_fmt = _("The customerGateway ID '%(id)s' does not exist")
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class InvalidVpnConnectionIDNotFound(EC2NotFoundException):
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ec2_code = 'InvalidVpnConnectionID.NotFound'
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msg_fmt = _("The vpnConnection ID '%(id)s' does not exist")
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class InvalidVpnGatewayAttachmentNotFound(EC2NotFoundException):
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ec2_code = 'InvalidVpnGatewayAttachment.NotFound'
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msg_fmt = _("The attachment with vpn gateway ID '%(vgw_id)s' "
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"and vpc ID '%(vpc_id)s' does not exist")
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class ResourceLimitExceeded(EC2OverlimitException):
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msg_fmt = _('You have reached the limit of %(resource)s')
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class VpcLimitExceeded(EC2OverlimitException):
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msg_fmt = _('The maximum number of VPCs has been reached.')
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class SubnetLimitExceeded(EC2OverlimitException):
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msg_fmt = _('You have reached the limit on the number of subnets that you '
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'can create')
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class InsufficientFreeAddressesInSubnet(EC2OverlimitException):
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msg_fmt = _('The specified subnet does not have enough free addresses to '
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'satisfy the request.')
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class AddressLimitExceeded(EC2OverlimitException):
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msg_fmt = _('The maximum number of addresses has been reached.')
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class SecurityGroupLimitExceeded(EC2OverlimitException):
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msg_fmt = _('You have reached the limit of security groups')
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class RulesPerSecurityGroupLimitExceeded(EC2OverlimitException):
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msg_fmt = _("You've reached the limit on the number of rules that "
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"you can add to a security group.")
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class VpnGatewayAttachmentLimitExceeded(EC2OverlimitException):
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msg_fmt = _('The maximum number of virtual private gateway attachments '
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'has been reached.')
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class InvalidGroupReserved(EC2InvalidException):
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ec2_code = 'InvalidGroup.Reserved'
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msg_fmt = _("The security group '%(group_name)' is reserved.")
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class VPCIdNotSpecified(EC2InvalidException):
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msg_fmt = _("No default VPC for this user.")
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