280 lines
7.5 KiB
Python
280 lines
7.5 KiB
Python
# Copyright 2014 Cloudscaling Group, Inc
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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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"""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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import sys
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from oslo.config import cfg
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from ec2api.openstack.common.gettextutils import _
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from ec2api.openstack.common import log as logging
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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 EC2ServerError(Exception):
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def __init__(self, response, content):
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self.response = response
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self.content = content
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class EC2Exception(Exception):
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"""Base EC2 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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code = 500
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headers = {}
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safe = False
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def __init__(self, message=None, **kwargs):
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self.kwargs = kwargs
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if 'code' not in self.kwargs:
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try:
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self.kwargs['code'] = self.code
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except AttributeError:
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pass
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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:
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exc_info = sys.exc_info()
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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'))
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for name, value in kwargs.iteritems():
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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 exc_info[0], exc_info[1], exc_info[2]
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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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super(EC2Exception, 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 EC2Exception message, (see __init__)
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return self.args[0]
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class Invalid(EC2Exception):
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msg_fmt = _("Unacceptable parameters.")
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code = 400
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class InvalidRequest(Invalid):
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msg_fmt = _("The request is invalid.")
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class InvalidEc2Id(Invalid):
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msg_fmt = _("Ec2 id %(ec2_id)s is unacceptable.")
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class InvalidInput(Invalid):
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msg_fmt = _("Invalid input received: %(reason)s")
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class ConfigNotFound(EC2Exception):
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msg_fmt = _("Could not find config at %(path)s")
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class PasteAppNotFound(EC2Exception):
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msg_fmt = _("Could not load paste app '%(name)s' from %(path)s")
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class MethodNotFound(EC2Exception):
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msg_fmt = _("Could not find method '%(name)s'")
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class Forbidden(EC2Exception):
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ec2_code = 'AuthFailure'
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msg_fmt = _("Not authorized.")
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code = 403
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class AuthFailure(Invalid):
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pass
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class NotFound(EC2Exception):
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msg_fmt = _("Resource could not be found.")
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code = 404
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class EC2NotFound(NotFound):
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code = 400
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class InstanceNotFound(EC2NotFound):
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ec2_code = 'InvalidInstanceID.NotFound'
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msg_fmt = _("Instance %(instance_id)s could not be found.")
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class InvalidVpcIDNotFound(EC2NotFound):
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ec2_code = 'InvalidVpcID.NotFound'
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msg_fmt = _("The vpc ID '%(vpc_id)s' does not exist")
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class InvalidInternetGatewayIDNotFound(EC2NotFound):
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ec2_code = 'InvalidInternetGatewayID.NotFound'
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msg_fmt = _("The internetGateway ID '%(igw_id)s' does not exist")
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class InvalidSubnetIDNotFound(EC2NotFound):
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ec2_code = 'InvalidSubnetID.NotFound'
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msg_fmt = _("The subnet ID '%(subnet_id)s' does not exist")
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class InvalidNetworkInterfaceIDNotFound(EC2NotFound):
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ec2_code = 'InvalidNetworkInterfaceID.NotFound'
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msg_fmt = _("Network interface %(eni_id)s could not "
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"be found.")
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class InvalidAttachmentIDNotFound(EC2NotFound):
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ec2_code = 'InvalidAttachmentID.NotFound'
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msg_fmt = _("Attachment %(eni-attach_id)s could not "
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"be found.")
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class InvalidDhcpOptionsIDNotFound(EC2NotFound):
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ec2_code = 'InvalidDhcpOptionsID.NotFound'
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msg_fmt = _("The dhcp options ID '%(dopt_id)s' does not exist")
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class InvalidAllocationIDNotFound(EC2NotFound):
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ec2_code = 'InvalidAllocationID.NotFound'
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msg_fmt = _("The allocation ID '%(eipalloc_id)s' does not exist")
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class InvalidAssociationIDNotFound(EC2NotFound):
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ec2_code = 'InvalidAssociationID.NotFound'
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msg_fmt = _("The association ID '%(assoc_id)s' does not exist")
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class InvalidRouteTableIDNotFound(EC2NotFound):
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ec2_code = 'InvalidRouteTableID.NotFound'
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msg_fmt = _("The routeTable ID '%(rtb_id)s' does not exist")
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class InvalidRouteNotFound(EC2NotFound):
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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 InvalidGroupNotFound(EC2NotFound):
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ec2_code = 'InvalidGroup.NotFound'
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msg_fmg = _("The security group ID '%(sg_id)s' does not exist")
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class InvalidPermissionNotFound(EC2NotFound):
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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 IncorrectState(EC2Exception):
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ec2_code = 'IncorrectState'
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code = 400
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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 InvalidVpcRange(Invalid):
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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 InvalidSubnetRange(Invalid):
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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(Invalid):
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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 MissingParameter(Invalid):
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pass
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class InvalidParameterValue(Invalid):
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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 InvalidParameterCombination(Invalid):
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pass
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class ResourceAlreadyAssociated(Invalid):
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ec2_code = 'Resource.AlreadyAssociated'
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class GatewayNotAttached(Invalid):
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ec2_code = 'Gateway.NotAttached'
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msg_fmt = _("resource %(igw_id)s is not attached to network %(vpc_id)s")
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class DependencyViolation(Invalid):
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ec2_code = 'DependencyViolation'
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msg_fmt = _('Object %(obj1_id)s has dependent resource %(obj2_id)s')
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class InvalidNetworkInterfaceInUse(Invalid):
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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 InvalidInstanceId(Invalid):
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ec2_code = 'InvalidInstanceID'
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class InvalidIPAddressInUse(Invalid):
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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 RouteAlreadyExists(Invalid):
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msg_fmt = _('The route identified by %(destination_cidr_block)s '
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'already exists.')
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