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93 lines
2.6 KiB
Python
93 lines
2.6 KiB
Python
from netaddr import IPNetwork
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from django.core.exceptions import ValidationError
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from django.db import models
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from .formfields import IPFormField
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from .lookups import (
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EndsWith, IEndsWith, IRegex, IStartsWith, NetContained, NetContainedOrEqual, NetContains, NetContainsOrEquals,
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NetHost, Regex, StartsWith,
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)
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def prefix_validator(prefix):
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if prefix.ip != prefix.cidr.ip:
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raise ValidationError("{} is not a valid prefix. Did you mean {}?".format(prefix, prefix.cidr))
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class BaseIPField(models.Field):
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def python_type(self):
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return IPNetwork
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def from_db_value(self, value, expression, connection, context):
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return self.to_python(value)
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def to_python(self, value):
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if not value:
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return value
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try:
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return IPNetwork(value)
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except ValueError as e:
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raise ValidationError(e)
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def get_prep_value(self, value):
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if not value:
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return None
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return str(self.to_python(value))
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def form_class(self):
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return IPFormField
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def formfield(self, **kwargs):
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defaults = {'form_class': self.form_class()}
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defaults.update(kwargs)
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return super(BaseIPField, self).formfield(**defaults)
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class IPNetworkField(BaseIPField):
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"""
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IP prefix (network and mask)
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"""
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description = "PostgreSQL CIDR field"
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default_validators = [prefix_validator]
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def db_type(self, connection):
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return 'cidr'
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IPNetworkField.register_lookup(EndsWith)
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IPNetworkField.register_lookup(IEndsWith)
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IPNetworkField.register_lookup(StartsWith)
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IPNetworkField.register_lookup(IStartsWith)
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IPNetworkField.register_lookup(Regex)
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IPNetworkField.register_lookup(IRegex)
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IPNetworkField.register_lookup(NetContained)
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IPNetworkField.register_lookup(NetContainedOrEqual)
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IPNetworkField.register_lookup(NetContains)
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IPNetworkField.register_lookup(NetContainsOrEquals)
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IPNetworkField.register_lookup(NetHost)
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class IPAddressField(BaseIPField):
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"""
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IP address (host address and mask)
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"""
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description = "PostgreSQL INET field"
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def db_type(self, connection):
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return 'inet'
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IPAddressField.register_lookup(EndsWith)
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IPAddressField.register_lookup(IEndsWith)
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IPAddressField.register_lookup(StartsWith)
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IPAddressField.register_lookup(IStartsWith)
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IPAddressField.register_lookup(Regex)
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IPAddressField.register_lookup(IRegex)
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IPAddressField.register_lookup(NetContained)
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IPAddressField.register_lookup(NetContainedOrEqual)
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IPAddressField.register_lookup(NetContains)
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IPAddressField.register_lookup(NetContainsOrEquals)
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IPAddressField.register_lookup(NetHost)
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