sahara/sahara/service/validations/shares.py

77 lines
2.4 KiB
Python

# Copyright (c) 2015 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
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from sahara import exceptions as ex
from sahara.i18n import _
from sahara.service.edp.utils import shares
from sahara.utils.openstack import manila
SHARE_SCHEMA = {
"type": "array",
"items": {
"type": "object",
"properties": {
"id": {
"type": "string",
"format": "uuid"
},
"path": {
"type": ["string", "null"]
},
"access_level": {
"type": ["string", "null"],
"enum": ["rw", "ro"],
"default": "rw"
}
},
"additionalProperties": False,
"required": [
"id"
]
}
}
def check_shares(data):
if not data:
return
paths = (share.get('path') for share in data)
paths = [path for path in paths if path is not None]
if len(paths) != len(set(paths)):
raise ex.InvalidDataException(
_('Multiple shares cannot be mounted to the same path.'))
for path in paths:
if not path.startswith('/') or '\x00' in path:
raise ex.InvalidDataException(
_('Paths must be absolute Linux paths starting with "/" '
'and may not contain nulls.'))
client = manila.client()
for share in data:
manila_share = manila.get_share(client, share['id'])
if not manila_share:
raise ex.InvalidReferenceException(
_("Requested share id %s does not exist.") % share['id'])
share_type = manila_share.share_proto
if share_type not in shares.SUPPORTED_SHARE_TYPES:
raise ex.InvalidReferenceException(
_("Requested share id %(id)s is of type %(type)s, which is "
"not supported by Sahara.")
% {"id": share['id'], "type": share_type})