designate/designate/objects/fields.py

430 lines
15 KiB
Python

# Copyright 2015 Red Hat, Inc.
# Copyright 2017 Fujitsu Vietnam Ltd.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from dns import ipv4
import dns.exception
import re
import uuid
from oslo_versionedobjects import fields as ovoo_fields
from oslo_versionedobjects.fields import DateTimeField # noqa
class IntegerField(ovoo_fields.IntegerField):
pass
class BooleanField(ovoo_fields.BooleanField):
pass
class PolymorphicObject(ovoo_fields.Object):
def coerce(self, obj, attr, value):
if hasattr(value, '__bases__'):
check_value = value.__bases__[0]
super(PolymorphicObject, self).coerce(obj, attr, check_value)
return value
class PolymorphicObjectField(ovoo_fields.AutoTypedField):
def __init__(self, objtype, subclasses=False, **kwargs):
self.AUTO_TYPE = PolymorphicObject(objtype, subclasses)
self.objname = objtype
super(PolymorphicObjectField, self).__init__(**kwargs)
class PolymorphicListOfObjectsField(ovoo_fields.AutoTypedField):
def __init__(self, objtype, subclasses=False, **kwargs):
self.AUTO_TYPE = ovoo_fields.List(
PolymorphicObject(objtype, subclasses))
self.objname = objtype
super(PolymorphicListOfObjectsField, self).__init__(**kwargs)
class ListOfObjectsField(ovoo_fields.ListOfObjectsField):
pass
class ObjectFields(ovoo_fields.ObjectField):
def __init__(self, objtype, subclasses=False, relation=False, **kwargs):
self.AUTO_TYPE = ovoo_fields.List(
ovoo_fields.Object(objtype, subclasses))
self.objname = objtype
super(ObjectFields, self).__init__(objtype, **kwargs)
self.relation = relation
class IntegerFields(IntegerField):
def __init__(self, nullable=False, default=ovoo_fields.UnspecifiedDefault,
read_only=False, minimum=0, maximum=None):
super(IntegerFields, self).__init__(nullable=nullable,
default=default,
read_only=read_only)
self.min = minimum
self.max = maximum
def coerce(self, obj, attr, value):
value = super(IntegerFields, self).coerce(obj, attr, value)
if value is None:
return value
if value < self.min:
# return self.min
raise ValueError('Value must be >= {} for field {}'.format(
self.min, attr)
)
if self.max and value > self.max:
raise ValueError('Value too high for %s' % attr)
return value
class StringFields(ovoo_fields.StringField):
RE_HOSTNAME = r'^(?!.{255,})(?:(?:^\*|(?!\-)[A-Za-z0-9_\-]{1,63})(?<!\-)\.)+\Z' # noqa
RE_ZONENAME = r'^(?!.{255,})(?:(?!\-)[A-Za-z0-9_\-]{1,63}(?<!\-)\.)+\Z'
RE_SRV_HOST_NAME = r'^(?:(?!\-)(?:\_[A-Za-z0-9_\-]{1,63}\.){2})(?!.{255,})'\
r'(?:(?!\-)[A-Za-z0-9_\-]{1,63}(?<!\-)\.)+\Z'
RE_SSHFP_FINGERPRINT = r'^([0-9A-Fa-f]{10,40}|[0-9A-Fa-f]{64})\Z'
RE_TLDNAME = r'^(?!.{255,})(?:(?!\-)[A-Za-z0-9_\-]{1,63}(?<!\-))' \
r'(?:\.(?:(?!\-)[A-Za-z0-9_\-]{1,63}(?<!\-)))*\Z'
RE_NAPTR_FLAGS = r'^(?!.*(.).*\1)[APSU]+$'
RE_NAPTR_SERVICE = r'^([A-Za-z]([A-Za-z0-9]*)(\+[A-Za-z]([A-Za-z0-9]{0,31}))*)?' # noqa
RE_NAPTR_REGEXP = r'^([^0-9i\\])(.*)\1((.+)|(\\[1-9]))\1(i?)'
RE_KVP = r'^\s[A-Za-z0-9]+=[A-Za-z0-9]+'
RE_URL_MAIL = r'^mailto:[A-Za-z0-9_\-]+@.*'
RE_URL_HTTP = r'^http(s)?://.*/'
def __init__(self, nullable=False, read_only=False,
default=ovoo_fields.UnspecifiedDefault, description='',
maxLength=None):
super(StringFields, self).__init__(nullable=nullable, default=default,
read_only=read_only)
self.description = description
self.maxLength = maxLength
def coerce(self, obj, attr, value):
if value is None:
return self._null(obj, attr)
else:
value = super(StringFields, self).coerce(obj, attr, value)
if self.maxLength and len(value) > self.maxLength:
raise ValueError('Value too long for %s' % attr)
return value
class UUID(ovoo_fields.UUID):
def coerce(self, obj, attr, value):
try:
value = int(value)
uuid.UUID(int=value)
except ValueError:
uuid.UUID(hex=value)
return str(value)
class UUIDFields(ovoo_fields.AutoTypedField):
AUTO_TYPE = UUID()
class DateTimeField(DateTimeField):
def __init__(self, tzinfo_aware=False, **kwargs):
super(DateTimeField, self).__init__(tzinfo_aware, **kwargs)
class ObjectField(ovoo_fields.ObjectField):
pass
class IPV4AddressField(ovoo_fields.IPV4AddressField):
def coerce(self, obj, attr, value):
try:
# make sure that DNS Python agrees that it is a valid IP address
ipv4.inet_aton(str(value))
except dns.exception.SyntaxError:
raise ValueError()
value = super(IPV4AddressField, self).coerce(obj, attr, value)
# we use this field as a string, not need a netaddr.IPAdress
# as oslo.versionedobjects is using
return str(value)
class IPV6AddressField(ovoo_fields.IPV6AddressField):
def coerce(self, obj, attr, value):
value = super(IPV6AddressField, self).coerce(obj, attr, value)
# we use this field as a string, not need a netaddr.IPAdress
# as oslo.versionedobjects is using
return str(value)
class IPV4AndV6AddressField(ovoo_fields.IPV4AndV6AddressField):
def coerce(self, obj, attr, value):
value = super(IPV4AndV6AddressField, self).coerce(obj, attr, value)
# we use this field as a string, not need a netaddr.IPAdress
# as oslo.versionedobjects is using
return str(value)
class Enum(ovoo_fields.Enum):
def get_schema(self):
return {
'enum': self._valid_values,
'type': 'any'
}
class EnumField(ovoo_fields.BaseEnumField):
def __init__(self, valid_values, **kwargs):
self.AUTO_TYPE = Enum(valid_values=valid_values)
super(EnumField, self).__init__(**kwargs)
class DomainField(StringFields):
def __init__(self, **kwargs):
super(DomainField, self).__init__(**kwargs)
def coerce(self, obj, attr, value):
value = super(DomainField, self).coerce(obj, attr, value)
if value is None:
return
domain = value.split('.')
for host in domain:
if len(host) > 63:
raise ValueError("Host %s is too long" % host)
if not value.endswith('.'):
raise ValueError("Domain %s is not end with a dot" % value)
if not re.match(self.RE_ZONENAME, value):
raise ValueError("Domain %s is not match" % value)
return value
class EmailField(StringFields):
def __init__(self, **kwargs):
super(EmailField, self).__init__(**kwargs)
def coerce(self, obj, attr, value):
value = super(EmailField, self).coerce(obj, attr, value)
if value.count('@') != 1:
raise ValueError("%s is not an email" % value)
email = value.replace('@', '.')
if not re.match(self.RE_ZONENAME, "%s." % email):
raise ValueError("Email %s is not match" % value)
return value
class HostField(StringFields):
def __init__(self, **kwargs):
super(HostField, self).__init__(**kwargs)
def coerce(self, obj, attr, value):
value = super(HostField, self).coerce(obj, attr, value)
if value is None:
return
hostname = value.split('.')
for host in hostname:
if len(host) > 63:
raise ValueError("Host %s is too long" % host)
if value.endswith('.') is False:
raise ValueError("Host name %s is not end with a dot" % value)
if not re.match(self.RE_HOSTNAME, value):
raise ValueError("Host name %s is not match" % value)
return value
class SRVField(StringFields):
def __init__(self, **kwargs):
super(SRVField, self).__init__(**kwargs)
def coerce(self, obj, attr, value):
value = super(SRVField, self).coerce(obj, attr, value)
if value is None:
return
srvtype = value.split('.')
for host in srvtype:
if len(host) > 63:
raise ValueError("Host %s is too long" % host)
if value.endswith('.') is False:
raise ValueError("Host name %s is not end with a dot" % value)
if not re.match(self.RE_SRV_HOST_NAME, value):
raise ValueError("Host name %s is not a SRV record" % value)
return value
class TxtField(StringFields):
def __init__(self, **kwargs):
super(TxtField, self).__init__(**kwargs)
def coerce(self, obj, attr, value):
value = super(TxtField, self).coerce(obj, attr, value)
if value.endswith('\\'):
raise ValueError("Do NOT put '\\' into end of TXT record")
return value
class Sshfp(StringFields):
def __init__(self, **kwargs):
super(Sshfp, self).__init__(**kwargs)
def coerce(self, obj, attr, value):
value = super(Sshfp, self).coerce(obj, attr, value)
if not re.match(self.RE_SSHFP_FINGERPRINT, "%s" % value):
raise ValueError("Host name %s is not a SSHFP record" % value)
return value
class TldField(StringFields):
def __init__(self, **kwargs):
super(TldField, self).__init__(**kwargs)
def coerce(self, obj, attr, value):
value = super(TldField, self).coerce(obj, attr, value)
if not re.match(self.RE_TLDNAME, value):
raise ValueError("%s is not an TLD" % value)
return value
class NaptrFlagsField(StringFields):
def __init__(self, **kwargs):
super(NaptrFlagsField, self).__init__(**kwargs)
def coerce(self, obj, attr, value):
value = super(NaptrFlagsField, self).coerce(obj, attr, value)
if (len(value) > 255):
raise ValueError("NAPTR record flags field cannot be longer than"
" 255 characters" % value)
if not re.match(self.RE_NAPTR_FLAGS, "%s" % value):
raise ValueError("NAPTR record flags can be S, A, U and P" % value)
return value
class NaptrServiceField(StringFields):
def __init__(self, **kwargs):
super(NaptrServiceField, self).__init__(**kwargs)
def coerce(self, obj, attr, value):
value = super(NaptrServiceField, self).coerce(obj, attr, value)
if (len(value) > 255):
raise ValueError("NAPTR record service field cannot be longer than"
" 255 characters" % value)
if not re.match(self.RE_NAPTR_SERVICE, "%s" % value):
raise ValueError("%s NAPTR record service does not match" % value)
return value
class NaptrRegexpField(StringFields):
def __init__(self, **kwargs):
super(NaptrRegexpField, self).__init__(**kwargs)
def coerce(self, obj, attr, value):
value = super(NaptrRegexpField, self).coerce(obj, attr, value)
if (len(value) > 255):
raise ValueError("NAPTR record regexp field cannot be longer than"
" 255 characters" % value)
if value:
if not re.match(self.RE_NAPTR_REGEXP, "%s" % value):
raise ValueError("%s is not a NAPTR record regexp" % value)
return value
class CaaPropertyField(StringFields):
def __init__(self, **kwargs):
super(CaaPropertyField, self).__init__(**kwargs)
def coerce(self, obj, attr, value):
value = super(CaaPropertyField, self).coerce(obj, attr, value)
prpt = value.split(' ', 1)
tag = prpt[0]
val = prpt[1]
if (tag == 'issue' or tag == 'issuewild'):
entries = val.split(';')
idn = entries.pop(0)
domain = idn.split('.')
for host in domain:
if len(host) > 63:
raise ValueError("Host %s is too long" % host)
idn_with_dot = idn + '.'
if not re.match(self.RE_ZONENAME, idn_with_dot):
raise ValueError("Domain %s does not match" % idn)
for entry in entries:
if not re.match(self.RE_KVP, entry):
raise ValueError("%s is not valid key-value pair" % entry)
elif tag == 'iodef':
if re.match(self.RE_URL_MAIL, val):
parts = val.split('@')
idn = parts[1]
domain = idn.split('.')
for host in domain:
if len(host) > 63:
raise ValueError("Host %s is too long" % host)
idn_with_dot = idn + '.'
if not re.match(self.RE_ZONENAME, idn_with_dot):
raise ValueError("Domain %s does not match" % idn)
elif re.match(self.RE_URL_HTTP, val):
parts = val.split('/')
idn = parts[2]
domain = idn.split('.')
for host in domain:
if len(host) > 63:
raise ValueError("Host %s is too long" % host)
idn_with_dot = idn + '.'
if not re.match(self.RE_ZONENAME, idn_with_dot):
raise ValueError("Domain %s does not match" % idn)
else:
raise ValueError("%s is not valid URL" % val)
else:
raise ValueError("Property tag %s must be 'issue', 'issuewild'"
" or 'iodef'" % value)
return value
class Any(ovoo_fields.FieldType):
@staticmethod
def coerce(obj, attr, value):
return value
class AnyField(ovoo_fields.AutoTypedField):
AUTO_TYPE = Any()
class BaseObject(ovoo_fields.FieldType):
@staticmethod
def coerce(obj, attr, value):
if isinstance(value, object):
return value
else:
raise ValueError("BaseObject valid values are not valid")
class BaseObjectField(ovoo_fields.AutoTypedField):
AUTO_TYPE = BaseObject()
class IPOrHost(IPV4AndV6AddressField):
def __init__(self, nullable=False, read_only=False,
default=ovoo_fields.UnspecifiedDefault):
super(IPOrHost, self).__init__(nullable=nullable,
default=default, read_only=read_only)
def coerce(self, obj, attr, value):
try:
value = super(IPOrHost, self).coerce(obj, attr, value)
except ValueError:
if not re.match(StringFields.RE_ZONENAME, value):
raise ValueError("%s is not IP address or host name" % value)
return value