110 lines
4.1 KiB
Python
110 lines
4.1 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright (C) 2017-2021 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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import re
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import sys
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from ..setting import undefined, Undefined, OptionBag
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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 PortOption(StrOption):
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"""represents the choice of a port
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The port numbers are divided into three ranges:
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the well-known ports,
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the registered ports,
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and the dynamic or private ports.
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You can actived this three range.
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Port number 0 is reserved and can't be used.
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see: http://en.wikipedia.org/wiki/Port_numbers
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"""
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__slots__ = tuple()
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port_re = re.compile(r"^[0-9]*$")
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_type = 'port'
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_display_name = _('port')
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def __init__(self,
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*args,
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allow_range: bool=False,
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allow_zero: bool=False,
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allow_wellknown: bool=True,
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allow_registred: bool=True,
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allow_private: bool=False,
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**kwargs) -> None:
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extra = {'_allow_range': allow_range,
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'_min_value': None,
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'_max_value': None}
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ports_min = [0, 1, 1024, 49152]
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ports_max = [0, 1023, 49151, 65535]
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is_finally = False
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for index, allowed in enumerate([allow_zero,
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allow_wellknown,
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allow_registred,
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allow_private]):
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if extra['_min_value'] is None:
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if allowed:
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extra['_min_value'] = ports_min[index]
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elif not allowed:
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is_finally = True
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elif allowed and is_finally:
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raise ValueError(_('inconsistency in allowed range'))
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if allowed:
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extra['_max_value'] = ports_max[index]
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if extra['_max_value'] is None:
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raise ValueError(_('max value is empty'))
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super().__init__(*args,
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extra=extra,
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**kwargs)
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def validate(self,
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value: str) -> None:
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super().validate(value)
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if self.impl_get_extra('_allow_range') and ":" in str(value):
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value = value.split(':')
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if len(value) != 2:
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raise ValueError(_('range must have two values only'))
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if not value[0] < value[1]:
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raise ValueError(_('first port in range must be'
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' smaller than the second one'))
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else:
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value = [value]
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for val in value:
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if not self.port_re.search(val):
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raise ValueError()
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def second_level_validation(self,
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value: str,
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warnings_only: bool) -> None:
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for val in value.split(':'):
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val = int(val)
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if not self.impl_get_extra('_min_value') <= val <= self.impl_get_extra('_max_value'):
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if warnings_only:
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msg = 'should be between {0} and {1}'
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else:
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msg = 'must be between {0} and {1}'
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raise ValueError(_(msg).format(self.impl_get_extra('_min_value'),
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self.impl_get_extra('_max_value')))
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