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# Copyright 2014 Huawei Technologies Co. Ltd
#
# 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.
"""Validator methods."""
import logging
import netaddr
import re
import socket
from compass.utils import setting_wrapper as setting
from compass.utils import util
def is_valid_ip(name, ip_addr, **kwargs):
"""Valid the format of an IP address."""
if isinstance(ip_addr, list):
return all([
is_valid_ip(name, item, **kwargs) for item in ip_addr
])
try:
netaddr.IPAddress(ip_addr)
except Exception:
logging.debug('%s invalid ip addr %s', name, ip_addr)
return False
return True
def is_valid_network(name, ip_network, **kwargs):
"""Valid the format of an Ip network."""
if isinstance(ip_network, list):
return all([
is_valid_network(name, item, **kwargs) for item in ip_network
])
try:
netaddr.IPNetwork(ip_network)
except Exception:
logging.debug('%s invalid network %s', name, ip_network)
return False
return True
def is_valid_netmask(name, ip_addr, **kwargs):
"""Valid the format of a netmask."""
if isinstance(ip_addr, list):
return all([
is_valid_netmask(name, item, **kwargs) for item in ip_addr
])
if not is_valid_ip(ip_addr):
return False
ip = netaddr.IPAddress(ip_addr)
if ip.is_netmask():
return True
logging.debug('%s invalid netmask %s', name, ip_addr)
return False
def is_valid_gateway(name, ip_addr, **kwargs):
"""Valid the format of gateway."""
if isinstance(ip_addr, list):
return all([
is_valid_gateway(name, item, **kwargs) for item in ip_addr
])
if not is_valid_ip(ip_addr):
return False
ip = netaddr.IPAddress(ip_addr)
if ip.is_private() or ip.is_public():
return True
logging.debug('%s invalid gateway %s', name, ip_addr)
return False
def is_valid_dns(name, dns, **kwargs):
"""Valid the format of DNS."""
if isinstance(dns, list):
return all([is_valid_dns(name, item, **kwargs) for item in dns])
if is_valid_ip(dns):
return True
try:
socket.gethostbyname_ex(dns)
except Exception:
logging.debug('%s invalid dns name %s', name, dns)
return False
return True
def is_valid_url(name, url, **kwargs):
"""Valid the format of url."""
if isinstance(url, list):
return all([
is_valid_url(name, item, **kwargs) for item in url
])
if re.match(
r'^(http|https|ftp)://([0-9A-Za-z_-]+)(\.[0-9a-zA-Z_-]+)*'
r'(:\d+)?(/[0-9a-zA-Z_-]+)*$',
url
):
return True
logging.debug(
'%s invalid url %s', name, url
)
return False
def is_valid_domain(name, domain, **kwargs):
"""Validate the format of domain."""
if isinstance(domain, list):
return all([
is_valid_domain(name, item, **kwargs) for item in domain
])
if re.match(
r'^([0-9a-zA-Z_-]+)(\.[0-9a-zA-Z_-]+)*$',
domain
):
return True
logging.debug(
'%s invalid domain %s', name, domain
)
return False
def is_valid_username(name, username, **kwargs):
"""Valid the format of username."""
if bool(username):
return True
logging.debug(
'%s username is empty', name
)
def is_valid_password(name, password, **kwargs):
"""Valid the format of password."""
if bool(password):
return True
logging.debug('%s password is empty', name)
return False
def is_valid_partition(name, partition, **kwargs):
"""Valid the format of partition name."""
if name != 'swap' and not name.startswith('/'):
logging.debug(
'%s is not started with / or swap', name
)
return False
if 'size' not in partition and 'percentage' not in partition:
logging.debug(
'%s partition does not contain sie or percentage',
name
)
return False
return True
def is_valid_percentage(name, percentage, **kwargs):
"""Valid the percentage."""
if 0 <= percentage <= 100:
return True
logging.debug('%s invalid percentage %s', name, percentage)
def is_valid_port(name, port, **kwargs):
"""Valid the format of port."""
if 0 < port < 65536:
return True
logging.debug('%s invalid port %s', name, port)
def is_valid_size(name, size, **kwargs):
if re.match(r'^(\d+)(K|M|G|T)$', size):
return True
logging.debug('%s invalid size %s', name, size)
return False
VALIDATOR_GLOBALS = globals()
VALIDATOR_LOCALS = locals()
VALIDATOR_CONFIGS = util.load_configs(
setting.VALIDATOR_DIR,
config_name_suffix='.py',
env_globals=VALIDATOR_GLOBALS,
env_locals=VALIDATOR_LOCALS
)
for validator_config in VALIDATOR_CONFIGS:
VALIDATOR_LOCALS.update(validator_config)
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