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