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36 lines
1.2 KiB
36 lines
1.2 KiB
from django.forms import CharField
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from django.forms.widgets import TextInput
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from django.core.validators import RegexValidator, _lazy_re_compile
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from django.forms.fields import EMPTY_VALUES
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from django.forms.utils import ValidationError
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from django.utils.translation import gettext_lazy as _
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from netaddr import EUI, AddrFormatError
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from . import MAC_ADDR_REGEX
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mac_address_validator = RegexValidator(
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_lazy_re_compile(MAC_ADDR_REGEX),
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message=_('Enter a valid integer.'),
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code='invalid',
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)
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class MACAddressField(CharField):
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widget = TextInput
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default_validators = [mac_address_validator]
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default_error_messages = {
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'invalid': _('Enter a valid MAC Address.'),
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}
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def clean(self, value):
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"""
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Validates that EUI() can be called on the input. Returns the result
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of EUI(). Returns None for empty values.
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"""
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value = super(MACAddressField, self).clean(value)
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if value in EMPTY_VALUES:
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return None
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try:
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value = EUI(str(value), version=48)
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except (ValueError, TypeError, AddrFormatError):
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raise ValidationError(self.error_messages['invalid'])
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return value
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