selfprivacy.org.app/lib/utils/network_utils.dart

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import 'package:selfprivacy/logic/models/json/dns_records.dart';
enum DnsRecordsCategory {
services,
email,
other,
}
class DesiredDnsRecord {
const DesiredDnsRecord({
required this.name,
required this.content,
this.type = 'A',
this.description = '',
this.category = DnsRecordsCategory.services,
this.isSatisfied = false,
});
final String name;
final String type;
final String content;
final String description;
final DnsRecordsCategory category;
final bool isSatisfied;
DesiredDnsRecord copyWith({
final String? name,
final String? type,
final String? content,
final String? description,
final DnsRecordsCategory? category,
final bool? isSatisfied,
}) =>
DesiredDnsRecord(
name: name ?? this.name,
type: type ?? this.type,
content: content ?? this.content,
description: description ?? this.description,
category: category ?? this.category,
isSatisfied: isSatisfied ?? this.isSatisfied,
);
}
List<DesiredDnsRecord> getDesiredDnsRecords(
final String? domainName,
final String? ipAddress,
final String? dkimPublicKey,
) {
if (domainName == null || ipAddress == null) {
return [];
}
return [
DesiredDnsRecord(
name: domainName,
content: ipAddress,
description: 'record.root',
),
DesiredDnsRecord(
name: 'api.$domainName',
content: ipAddress,
description: 'record.api',
),
DesiredDnsRecord(
name: 'cloud.$domainName',
content: ipAddress,
description: 'record.cloud',
),
DesiredDnsRecord(
name: 'git.$domainName',
content: ipAddress,
description: 'record.git',
),
DesiredDnsRecord(
name: 'meet.$domainName',
content: ipAddress,
description: 'record.meet',
),
DesiredDnsRecord(
name: 'social.$domainName',
content: ipAddress,
description: 'record.social',
),
DesiredDnsRecord(
name: 'password.$domainName',
content: ipAddress,
description: 'record.password',
),
DesiredDnsRecord(
name: 'vpn.$domainName',
content: ipAddress,
description: 'record.vpn',
),
DesiredDnsRecord(
name: domainName,
content: domainName,
description: 'record.mx',
type: 'MX',
category: DnsRecordsCategory.email,
),
DesiredDnsRecord(
name: '_dmarc.$domainName',
content: 'v=DMARC1; p=none',
description: 'record.dmarc',
type: 'TXT',
category: DnsRecordsCategory.email,
),
DesiredDnsRecord(
name: domainName,
content: 'v=spf1 a mx ip4:$ipAddress -all',
description: 'record.spf',
type: 'TXT',
category: DnsRecordsCategory.email,
),
if (dkimPublicKey != null)
DesiredDnsRecord(
name: 'selector._domainkey.$domainName',
content: dkimPublicKey,
description: 'record.dkim',
type: 'TXT',
category: DnsRecordsCategory.email,
),
];
}
DnsRecord? extractDkimRecord(final List<DnsRecord> records) {
DnsRecord? dkimRecord;
for (final DnsRecord record in records) {
if (record.type == 'TXT' && record.name == 'selector._domainkey') {
dkimRecord = record;
}
}
return dkimRecord;
}
String getHostnameFromDomain(final String domain) {
// Replace all non-alphanumeric characters with an underscore
String hostname =
domain.split('.')[0].replaceAll(RegExp(r'[^a-zA-Z0-9]'), '-');
if (hostname.endsWith('-')) {
hostname = hostname.substring(0, hostname.length - 1);
}
if (hostname.startsWith('-')) {
hostname = hostname.substring(1);
}
if (hostname.isEmpty) {
hostname = 'selfprivacy-server';
}
return hostname;
}