fix(DNS): Handle CAA records

lib/logic/models/json/dns_providers/cloudflare_dns_adapter.dart

@@ -12,6 +12,28 @@ CloudflareDnsRecord _fromDnsRecord(
   if (type == 'MX' && name == '@') {
     name = rootDomain;
   }
+  if (type == 'CAA') {
+    // Split the content string into parts
+    // e.g. '0 issue "letsencrypt.org"' -> ['0', 'issue', 'letsencrypt.org']
+    final List<String> parts = dnsRecord.content!.split(' ');
+    if (parts.length != 3) {
+      throw ArgumentError('Invalid CAA record content: ${dnsRecord.content}');
+    }
+    final data = <String, dynamic>{
+      'flags': int.parse(parts[0]),
+      'tag': parts[1],
+      'value': parts[2].replaceAll('"', ''),
+    };
+    return CloudflareDnsRecord(
+      content: null,
+      name: name,
+      type: type,
+      zoneName: rootDomain,
+      id: null,
+      ttl: dnsRecord.ttl,
+      data: data,
+    );
+  }
   return CloudflareDnsRecord(
     content: dnsRecord.content,
     name: name,

lib/logic/models/json/dns_providers/cloudflare_dns_info.dart

@@ -38,8 +38,9 @@ class CloudflareDnsRecord {
   CloudflareDnsRecord({
     required this.type,
     required this.name,
-    required this.content,
     required this.zoneName,
+    this.content,
+    this.data,
     this.ttl = 3600,
     this.priority = 10,
     this.id,
@@ -75,6 +76,9 @@ class CloudflareDnsRecord {
   /// Example: A valid IPv4 address "198.51.100.4"
   final String? content;
 
+  /// Some record types require data object instead of the content.
+  final Map<String, dynamic>? data;
+
   /// The domain of the record.
   ///
   /// Example: example.com

lib/logic/models/json/dns_providers/cloudflare_dns_info.g.dart

@@ -22,8 +22,9 @@ CloudflareDnsRecord _$CloudflareDnsRecordFromJson(Map<String, dynamic> json) =>
     CloudflareDnsRecord(
       type: json['type'] as String,
       name: json['name'] as String?,
-      content: json['content'] as String?,
       zoneName: json['zone_name'] as String,
+      content: json['content'] as String?,
+      data: json['data'] as Map<String, dynamic>?,
       ttl: (json['ttl'] as num?)?.toInt() ?? 3600,
       priority: (json['priority'] as num?)?.toInt() ?? 10,
       id: json['id'] as String?,
@@ -37,6 +38,7 @@ Map<String, dynamic> _$CloudflareDnsRecordToJson(
       'type': instance.type,
       'name': instance.name,
       'content': instance.content,
+      'data': instance.data,
       'zone_name': instance.zoneName,
       'ttl': instance.ttl,
       'priority': instance.priority,

lib/logic/models/json/dns_providers/digital_ocean_dns_adapter.dart

@@ -9,6 +9,26 @@ DigitalOceanDnsRecord _fromDnsRecord(
   String content = dnsRecord.content ?? '';
   name = convert(name);
   content = convert(content);
+
+  if (dnsRecord.type == 'CAA') {
+    // Split the content string into parts
+    // e.g. '0 issue "letsencrypt.org"' -> ['0', 'issue', 'letsencrypt.org']
+    final List<String> parts = dnsRecord.content!.split(' ');
+    if (parts.length != 3) {
+      throw ArgumentError('Invalid CAA record content: ${dnsRecord.content}');
+    }
+    return DigitalOceanDnsRecord(
+      name: name,
+      data: parts[2].replaceAll('"', ''),
+      ttl: dnsRecord.ttl,
+      type: dnsRecord.type,
+      priority: dnsRecord.priority,
+      id: null,
+      flags: int.parse(parts[0]),
+      tag: parts[1],
+    );
+  }
+
   return DigitalOceanDnsRecord(
     name: name,
     data: content,

lib/logic/models/json/dns_providers/digital_ocean_dns_info.dart

@@ -44,6 +44,8 @@ class DigitalOceanDnsRecord {
     required this.ttl,
     required this.data,
     this.priority,
+    this.flags,
+    this.tag,
   });
 
   factory DigitalOceanDnsRecord.fromDnsRecord(
@@ -78,6 +80,12 @@ class DigitalOceanDnsRecord {
   /// The priority for SRV and MX records.
   final int? priority;
 
+  /// The flags for CAA records.
+  final int? flags;
+
+  /// The tag for CAA records.
+  final String? tag;
+
   static DigitalOceanDnsRecord fromJson(final Map<String, dynamic> json) =>
       _$DigitalOceanDnsRecordFromJson(json);
   Map<String, dynamic> toJson() => _$DigitalOceanDnsRecordToJson(this);

lib/logic/models/json/dns_providers/digital_ocean_dns_info.g.dart

@@ -27,6 +27,8 @@ DigitalOceanDnsRecord _$DigitalOceanDnsRecordFromJson(
       ttl: (json['ttl'] as num).toInt(),
       data: json['data'] as String,
       priority: (json['priority'] as num?)?.toInt(),
+      flags: (json['flags'] as num?)?.toInt(),
+      tag: json['tag'] as String?,
     );
 
 Map<String, dynamic> _$DigitalOceanDnsRecordToJson(
@@ -38,4 +40,6 @@ Map<String, dynamic> _$DigitalOceanDnsRecordToJson(
       'ttl': instance.ttl,
       'data': instance.data,
       'priority': instance.priority,
+      'flags': instance.flags,
+      'tag': instance.tag,
     };