257 lines
7.1 KiB
Python
257 lines
7.1 KiB
Python
# Copyright 2011 VMware, Inc
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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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"""
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Tacker base exception handling.
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"""
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from oslo_log import log as logging
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import webob.exc
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from webob import util as woutil
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from tacker._i18n import _
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LOG = logging.getLogger(__name__)
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class ConvertedException(webob.exc.WSGIHTTPException):
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def __init__(self, code, title="", explanation=""):
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self.code = code
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# There is a strict rule about constructing status line for HTTP:
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# '...Status-Line, consisting of the protocol version followed by a
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# numeric status code and its associated textual phrase, with each
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# element separated by SP characters'
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# (http://www.faqs.org/rfcs/rfc2616.html)
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# 'code' and 'title' can not be empty because they correspond
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# to numeric status code and its associated text
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if title:
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self.title = title
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else:
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try:
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self.title = woutil.status_reasons[self.code]
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except KeyError:
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msg = _("Improper or unknown HTTP status code used: %d")
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LOG.error(msg, code)
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self.title = woutil.status_generic_reasons[self.code // 100]
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self.explanation = explanation
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super(ConvertedException, self).__init__()
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class TackerException(Exception):
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"""Base Tacker Exception.
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To correctly use this class, inherit from it and define
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a 'message' property. That message will get printf'd
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with the keyword arguments provided to the constructor.
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"""
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message = _("An unknown exception occurred.")
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code = 500
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def __init__(self, message=None, **kwargs):
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if not message:
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try:
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message = self.message % kwargs
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except Exception:
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message = self.message
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self.msg = message
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super(TackerException, self).__init__(message)
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def __str__(self):
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return self.msg
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def format_message(self):
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return self.args[0]
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def use_fatal_exceptions(self):
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"""Is the instance using fatal exceptions.
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:returns: Always returns False.
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"""
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return False
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class BadRequest(TackerException):
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message = _('Bad %(resource)s request: %(msg)s')
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code = 400
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class NotFound(TackerException):
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message = _('%(resource)s %(name)s not Found')
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class Conflict(TackerException):
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pass
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class NotAuthorized(TackerException):
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message = _("Not authorized.")
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code = 401
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class Forbidden(TackerException):
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msg_fmt = _("Forbidden")
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code = 403
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class ServiceUnavailable(TackerException):
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message = _("The service is unavailable")
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class AdminRequired(NotAuthorized):
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message = _("User does not have admin privileges: %(reason)s")
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class PolicyNotAuthorized(Forbidden):
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message = _("Policy doesn't allow %(action)s to be performed.")
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class PolicyInitError(TackerException):
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message = _("Failed to init policy %(policy)s because %(reason)s")
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class PolicyCheckError(TackerException):
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message = _("Failed to check policy %(policy)s because %(reason)s")
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class InUse(TackerException):
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message = _("The resource is in use")
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class MalformedRequestBody(BadRequest):
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message = _("Malformed request body: %(reason)s")
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class Invalid(TackerException):
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message = _("Bad Request - Invalid Parameters")
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class InvalidInput(BadRequest):
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message = _("Invalid input for operation: %(error_message)s.")
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class InvalidContentType(TackerException):
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message = _("Invalid content type %(content_type)s")
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class NetworkVlanRangeError(TackerException):
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message = _("Invalid network VLAN range: '%(vlan_range)s' - '%(error)s'")
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def __init__(self, **kwargs):
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# Convert vlan_range tuple to 'start:end' format for display
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if isinstance(kwargs['vlan_range'], tuple):
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kwargs['vlan_range'] = "%d:%d" % kwargs['vlan_range']
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super(NetworkVlanRangeError, self).__init__(**kwargs)
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class DuplicatedExtension(TackerException):
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message = _("Found duplicate extension: %(alias)s")
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class MgmtDriverException(TackerException):
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message = _("VNF configuration failed")
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class AlarmUrlInvalid(BadRequest):
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message = _("Invalid alarm url for VNF %(vnf_id)s")
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class TriggerNotFound(NotFound):
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message = _("Trigger %(trigger_name)s does not exist for VNF %(vnf_id)s")
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class VnfPolicyNotFound(NotFound):
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message = _("Policy %(policy)s does not exist for VNF %(vnf_id)s")
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class VnfPolicyActionInvalid(BadRequest):
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message = _("Invalid action %(action)s for policy %(policy)s, "
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"should be one of %(valid_actions)s")
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class VnfPolicyTypeInvalid(BadRequest):
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message = _("Invalid type %(type)s for policy %(policy)s, "
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"should be one of %(valid_types)s")
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class DuplicateResourceName(TackerException):
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message = _("%(resource)s with name %(name)s already exists")
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class DuplicateEntity(Conflict):
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message = _("%(_type)s already exist with given %(entry)s")
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class ValidationError(BadRequest):
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message = "%(detail)s"
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class ObjectActionError(TackerException):
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message = _("Object action %(action)s failed because: %(reason)s")
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class VnfPackageNotFound(NotFound):
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message = _("No vnf package with id %(id)s.")
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class VnfDeploymentFlavourNotFound(NotFound):
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message = _("No vnf deployment flavour with id %(id)s.")
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class VnfSoftwareImageNotFound(NotFound):
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message = _("No vnf software image with id %(id)s.")
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class OrphanedObjectError(TackerException):
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msg_fmt = _('Cannot call %(method)s on orphaned %(objtype)s object')
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class CSARFileSizeLimitExceeded(TackerException):
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message = _("The provided CSAR file is too large.")
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class VNFPackageURLInvalid(Invalid):
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message = _("Failed to open URL %(url)s")
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class InvalidZipFile(Invalid):
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message = _("Invalid zip file : %(path)s")
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class UploadFailedToGlanceStore(Invalid):
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message = _("Failed to upload vnf package %(uuid)s to glance store: "
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"%(error)s")
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class InvalidCSAR(Invalid):
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message = _("Invalid csar: %(error)s")
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class LimitExceeded(TackerException):
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message = _("The request returned a 413 Request Entity Too Large. This "
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"generally means that rate limiting or a quota threshold was "
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"breached.\n\nThe response body:\n%(body)s")
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def __init__(self, *args, **kwargs):
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self.retry_after = (int(kwargs['retry']) if kwargs.get('retry')
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else None)
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super(LimitExceeded, self).__init__(*args, **kwargs)
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class UserDataUpdateCreateFailed(TackerException):
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msg_fmt = _("User data for VNF package %(id)s cannot be updated "
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"or created after %(retries)d retries.")
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