DNS: allow wildcards for record names

Author: gmelikov

genesis_core/user_api/dns/dm/models.py

@@ -39,6 +39,11 @@ class SOARecordDeleteRestricted(exceptions.RestAlchemyException):
     message = "SOA record cannot be deleted without domain deletion."
 
 
+class RecordNameWithWildcard(types_network.RecordName):
+    # Difference - allow wildcard at the beginning of domain name.
+    pattern = re.compile(r"^(\*\.){0,1}([a-zA-Z0-9-_]{1,61}\.{0,1}){0,30}$")
+
+
 class CommonModel(
     models.ModelWithTimestamp,
     models.ModelWithUUID,
@@ -121,7 +126,7 @@ class ARecord(AbstractRecord):
     KIND = "A"
 
     name = properties.property(
-        types_network.RecordName(),
+        RecordNameWithWildcard(),
         required=True,
     )
     address = properties.property(
@@ -137,7 +142,7 @@ class SOARecord(AbstractRecord):
     KIND = "SOA"
 
     name = properties.property(
-        types_network.RecordName(),
+        RecordNameWithWildcard(),
         required=True,
     )
     primary_dns = properties.property(
@@ -158,7 +163,7 @@ class TXTRecord(AbstractRecord):
     KIND = "TXT"
 
     name = properties.property(
-        types_network.RecordName(),
+        RecordNameWithWildcard(),
         required=True,
     )
     content = properties.property(
@@ -172,7 +177,7 @@ class NSRecord(AbstractRecord):
     KIND = "NS"
 
     name = properties.property(
-        types_network.RecordName(),
+        RecordNameWithWildcard(),
         required=True,
     )
     content = properties.property(