43 lines
1.6 KiB
Python
43 lines
1.6 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright (C) 2017-2024 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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"""NetmaskOption
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"""
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from ipaddress import ip_network
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from ..i18n import _
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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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_type = "netmask address"
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_t_type = _("netmask address")
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def validate(self, value: str) -> None:
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super().validate(value)
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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(f"0.0.0.0/{value}")
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except ValueError as err:
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raise ValueError() from err
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