# designate.objects.rrdata_mx

# Source code for designate.objects.rrdata_mx

    # Copyright (c) 2014 Rackspace Hosting
    # 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 designate.objects import base
    from designate.objects import fields
    from designate.objects.record import Record
    from designate.objects.record import RecordList

    @base.DesignateRegistry.register
    class MX(Record):
        """
        MX Resource Record Type
        Defined in: RFC1035
        """
        fields = {
            'priority': fields.IntegerFields(minimum=0, maximum=65535),
            'exchange': fields.StringFields(maxLength=255),
        }

        def from_string(self, value):
            priority, exchange = value.split(' ')

            if repr(int(priority)) != priority:
                raise ValueError('Value is not an integer')

            if not exchange.endswith('.'):
                raise ValueError('Domain %s does not end with a dot' % exchange)

            self.priority = int(priority)
            self.exchange = exchange

        # The record type is defined in the RFC. This will be used when the record
        # is sent by mini-dns.
        RECORD_TYPE = 15

    @base.DesignateRegistry.register
    class MXList(RecordList):

        LIST_ITEM_TYPE = MX

        fields = {
            'objects': fields.ListOfObjectsField('MX'),
        }

this page last updated: 2026-08-19 02:25:39

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