Source code for nsot.validators

Validators for validating object fields.

from django.conf import settings
from django.core.validators import EmailValidator
import ipaddress
import netaddr

from . import exc

[docs]def validate_mac_address(value): """Validate whether ``value`` is a valid MAC address.""" if value is None: return value # If the incoming value is a string, cast it to an int if isinstance(value, basestring) and value.isdigit(): value = int(value) # Directly invoke EUI object instead of using MACAddressField try: value = netaddr.EUI(value, version=48) except (ValueError, TypeError, netaddr.AddrFormatError): raise exc.ValidationError({ 'mac_address': 'Enter a valid MAC Address.' }) return value
[docs]def validate_name(value): """Validate whether ``value`` is a valid name.""" if not value: raise exc.ValidationError({ 'name': 'This is a required field.' }) return value
[docs]def validate_cidr(value): """Validate whether ``value`` is a validr IPv4/IPv6 CIDR.""" try: cidr = ipaddress.ip_network(unicode(value)) except ValueError: raise exc.ValidationError({ 'cidr': '%r does not appear to be an IPv4 or IPv6 network' % value }) else: return cidr
[docs]def validate_host_address(value): """Validate whether ``value`` is a host IP address.""" cidr = validate_cidr(value) if cidr.prefixlen not in settings.HOST_PREFIXES: raise exc.ValidationError({ 'address': '%r is not a valid host address!' % value }) return value
[docs]def validate_email(value): """Validate whether ``value`` is an email address.""" validator = EmailValidator() try: validator(value) except exc.DjangoValidationError as err: raise exc.ValidationError({ 'email': err.message }) return value