136 lines
5.2 KiB
Python
136 lines
5.2 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright (C) 2017-2019 Team tiramisu (see AUTHORS for all contributors)
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify it
|
|
# under the terms of the GNU Lesser General Public License as published by the
|
|
# Free Software Foundation, either version 3 of the License, or (at your
|
|
# option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful, but WITHOUT
|
|
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
|
# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
|
|
# details.
|
|
#
|
|
# You should have received a copy of the GNU Lesser General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
#
|
|
# The original `Config` design model is unproudly borrowed from
|
|
# the rough pypy's guys: http://codespeak.net/svn/pypy/dist/pypy/config/
|
|
# the whole pypy projet is under MIT licence
|
|
# ____________________________________________________________
|
|
from ipaddress import ip_interface, ip_network
|
|
|
|
from ..error import ConfigError
|
|
from ..setting import undefined, OptionBag, Undefined
|
|
from ..i18n import _
|
|
from .option import Option
|
|
from .stroption import StrOption
|
|
|
|
|
|
class NetmaskOption(StrOption):
|
|
"represents the choice of a netmask"
|
|
__slots__ = tuple()
|
|
_display_name = _('netmask address')
|
|
|
|
def _validate(self,
|
|
value: str,
|
|
option_bag: OptionBag,
|
|
current_opt: Option=Undefined) -> None:
|
|
if not isinstance(value, str):
|
|
raise ValueError(_('invalid string'))
|
|
if value.count('.') != 3:
|
|
raise ValueError()
|
|
for val in value.split('.'):
|
|
if val.startswith("0") and len(val) > 1:
|
|
raise ValueError()
|
|
try:
|
|
ip_network('0.0.0.0/{0}'.format(value))
|
|
except ValueError:
|
|
raise ValueError()
|
|
|
|
def _cons_network_netmask(self,
|
|
current_opt,
|
|
opts,
|
|
vals,
|
|
warnings_only,
|
|
context):
|
|
#opts must be (netmask, network) options
|
|
if context is undefined and len(vals) != 2:
|
|
raise ConfigError(_('network_netmask needs a network and a netmask'))
|
|
if None in vals or len(vals) != 2:
|
|
return
|
|
msg = None
|
|
val_netmask, val_network = vals
|
|
try:
|
|
ip_network('{0}/{1}'.format(val_network, val_netmask))
|
|
except ValueError:
|
|
if current_opt == opts[1]:
|
|
raise ValueError(_('with netmask "{0}" ("{1}")').format(val_netmask, opts[0].impl_get_display_name()))
|
|
else:
|
|
raise ValueError(_('with network "{0}" ("{1}")').format(val_network, opts[1].impl_get_display_name()))
|
|
if msg is not None:
|
|
self.raise_err(msg,
|
|
val_netmask,
|
|
val_network,
|
|
current_opt,
|
|
opts,
|
|
'network')
|
|
|
|
def _cons_ip_netmask(self,
|
|
current_opt,
|
|
opts,
|
|
vals,
|
|
warnings_only,
|
|
context,
|
|
_cidr=False):
|
|
# opts must be (netmask, ip) options
|
|
if context is undefined and len(vals) != 2:
|
|
raise ConfigError(_('ip_netmask needs an IP and a netmask'))
|
|
if None in vals or len(vals) != 2:
|
|
return
|
|
msg = None
|
|
val_netmask, val_ip = vals
|
|
try:
|
|
ip = ip_interface('{0}/{1}'.format(val_ip, val_netmask))
|
|
network = ip.network
|
|
# if not ip same has network
|
|
if ip.ip == network.network_address:
|
|
if not _cidr and current_opt == opts[1]:
|
|
msg = _('this is a network with netmask "{0}" ("{1}")')
|
|
else:
|
|
msg = _('{2} "{0}" ("{1}") is the network')
|
|
elif ip.ip == network.broadcast_address:
|
|
if not _cidr and current_opt == opts[1]:
|
|
msg = _('this is a broadcast with netmask "{0}" ("{1}")')
|
|
else:
|
|
msg = _('{2} "{0}" ("{1}") is the broadcast')
|
|
except ValueError:
|
|
import traceback
|
|
traceback.print_exc()
|
|
pass
|
|
if msg is not None:
|
|
self.raise_err(msg,
|
|
val_netmask,
|
|
val_ip,
|
|
current_opt,
|
|
opts,
|
|
'IP',
|
|
_cidr)
|
|
|
|
|
|
def raise_err(self,
|
|
msg,
|
|
val_netmask,
|
|
val_ipnetwork,
|
|
current_opt,
|
|
opts,
|
|
typ,
|
|
_cidr=False):
|
|
if not _cidr and current_opt == opts[1]:
|
|
raise ValueError(msg.format(val_netmask,
|
|
opts[1].impl_get_display_name()))
|
|
else:
|
|
raise ValueError(msg.format(val_ipnetwork,
|
|
opts[0].impl_get_display_name(),
|
|
typ))
|