Add DNSNameValidator to allow wildcard in ExtraDNSName

netbox_ddns/migrations/0014_alter_extradnsname_name.py

@@ -0,0 +1,19 @@
+# Generated by Django 5.2.5 on 2025-09-01 09:17
+
+import netbox_ddns.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('netbox_ddns', '0013_reversezone_created_reversezone_custom_field_data_and_more'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='extradnsname',
+            name='name',
+            field=models.CharField(max_length=255, validators=[netbox_ddns.validators.DNSNameValidator()]),
+        ),
+    ]

netbox_ddns/models.py

@@ -18,7 +18,7 @@
 from ipam.models import IPAddress
 from utilities.querysets import RestrictedQuerySet
 from .utils import normalize_fqdn
-from .validators import HostnameAddressValidator, HostnameValidator, validate_base64, MinValueValidator, \
+from .validators import DNSNameValidator, HostnameAddressValidator, HostnameValidator, validate_base64, MinValueValidator, \
     MaxValueValidator
 
 logger = logging.getLogger('netbox_ddns')
@@ -374,7 +374,7 @@ class ExtraDNSName(NetBoxModel):
     name = models.CharField(
         verbose_name=_('DNS name'),
         max_length=255,
-        validators=[HostnameValidator()],
+        validators=[DNSNameValidator()],
     )
 
     last_update = models.DateTimeField(

netbox_ddns/validators.py

@@ -21,3 +21,9 @@ def validate_base64(value):
         base64.b64decode(value, validate=True)
     except binascii.Error:
         raise ValidationError('Invalid base64 string')
+
+class DNSNameValidator(RegexValidator):
+    regex = r"^([0-9A-Za-z_-]+|\*)(\.[0-9A-Za-z_-]+)*\.?$"
+    message = _(
+        "Only alphanumeric characters, asterisks, hyphens, periods, and underscores are allowed in DNS names"
+    )