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49 lines
1.4 KiB
49 lines
1.4 KiB
#
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#
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#
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class _IpValue(str):
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@classmethod
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def parse_rdata_text(cls, value):
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return value
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@classmethod
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def validate(cls, data, _type):
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if not isinstance(data, (list, tuple)):
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data = (data,)
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if len(data) == 0:
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return ['missing value(s)']
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reasons = []
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for value in data:
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if value == '':
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reasons.append('empty value')
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elif value is None:
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reasons.append('missing value(s)')
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else:
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try:
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cls._address_type(str(value))
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except Exception:
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addr_name = cls._address_name
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reasons.append(f'invalid {addr_name} address "{value}"')
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return reasons
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@classmethod
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def process(cls, values):
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# Translating None into '' so that the list will be sortable in
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# python3, get everything to str first
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values = [v if v is not None else '' for v in values]
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# Now round trip all non-'' through the address type and back to a str
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# to normalize the address representation.
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return [cls(v) if v != '' else '' for v in values]
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def __new__(cls, v):
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v = str(cls._address_type(v))
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return super().__new__(cls, v)
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@property
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def rdata_text(self):
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return self
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_IpAddress = _IpValue
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