ovsdbapp/ovsdbapp/utils.py

96 lines
2.8 KiB
Python

# 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.
import uuid
import netaddr
from ovs.db import idl
from ovsdbapp import api
from ovsdbapp.backend.ovs_idl import rowview
# NOTE(twilson) Clearly these are silly, but they are good enough for now
# I'm happy for someone to replace them with better parsing
def normalize_ip(ip):
return str(netaddr.IPAddress(ip))
def normalize_ip_port(ipport):
try:
return normalize_ip(ipport)
except netaddr.AddrFormatError as e:
# maybe we have a port
if ipport[0] == '[':
# Should be an IPv6 w/ port
try:
ip, port = ipport[1:].split(']:')
except ValueError as e2:
raise netaddr.AddrFormatError("Invalid Port") from e2
ip = "[%s]" % normalize_ip(ip)
else:
try:
ip, port = ipport.split(':')
except ValueError as e3:
raise netaddr.AddrFormatError("Invalid Port") from e3
ip = normalize_ip(ip)
if int(port) <= 0 or int(port) > 65535:
raise netaddr.AddrFormatError("Invalid port") from e
return "%s:%s" % (ip, port)
def generate_uuid(dashed=True):
"""Create a random uuid string.
:param dashed: Generate uuid with dashes or not
:type dashed: bool
:returns: string
"""
if dashed:
return str(uuid.uuid4())
return uuid.uuid4().hex
def _format_uuid_string(string):
return (string.replace('urn:', '')
.replace('uuid:', '')
.strip('{}')
.replace('-', '')
.lower())
def is_uuid_like(val):
"""Return validation of a value as a UUID.
:param val: Value to verify
:type val: string
:returns: bool
"""
try:
return str(uuid.UUID(val)).replace('-', '') == _format_uuid_string(val)
except (TypeError, ValueError, AttributeError):
return False
def get_uuid(reg_uuid_or_cmd):
"""Return the UUID of a UUID itself or a BaseCommand"""
if isinstance(reg_uuid_or_cmd, api.Command):
reg_uuid = reg_uuid_or_cmd.result
if isinstance(reg_uuid, (rowview.RowView, idl.Row)):
reg_uuid = reg_uuid.uuid
else:
reg_uuid = reg_uuid_or_cmd
return reg_uuid