adguard-home-manager/lib/screens/settings/dns/fallback_dns.dart
2024-09-11 18:13:26 +02:00

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Dart

import 'dart:io';
import 'package:adguard_home_manager/screens/settings/dns/comment_modal.dart';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'package:flutter_gen/gen_l10n/app_localizations.dart';
import 'package:adguard_home_manager/functions/desktop_mode.dart';
import 'package:adguard_home_manager/classes/process_modal.dart';
import 'package:adguard_home_manager/providers/dns_provider.dart';
import 'package:adguard_home_manager/functions/snackbar.dart';
import 'package:adguard_home_manager/providers/app_config_provider.dart';
class FallbackDnsScreen extends StatefulWidget {
const FallbackDnsScreen({super.key});
@override
State<FallbackDnsScreen> createState() => _FallbackDnsScreenState();
}
class _FallbackDnsScreenState extends State<FallbackDnsScreen> {
List<Map<String, dynamic>> fallbackControllers = [];
bool validValues = false;
void validateIp(Map<String, dynamic> field, String value) {
RegExp ipAddress = RegExp(r'(?:^(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)){3}$)|(?:^(?:(?:[a-fA-F\d]{1,4}:){7}(?:[a-fA-F\d]{1,4}|:)|(?:[a-fA-F\d]{1,4}:){6}(?:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)(?:\\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)){3}|:[a-fA-F\d]{1,4}|:)|(?:[a-fA-F\d]{1,4}:){5}(?::(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)(?:\\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)){3}|(?::[a-fA-F\d]{1,4}){1,2}|:)|(?:[a-fA-F\d]{1,4}:){4}(?:(?::[a-fA-F\d]{1,4}){0,1}:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)(?:\\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)){3}|(?::[a-fA-F\d]{1,4}){1,3}|:)|(?:[a-fA-F\d]{1,4}:){3}(?:(?::[a-fA-F\d]{1,4}){0,2}:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)(?:\\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)){3}|(?::[a-fA-F\d]{1,4}){1,4}|:)|(?:[a-fA-F\d]{1,4}:){2}(?:(?::[a-fA-F\d]{1,4}){0,3}:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)(?:\\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)){3}|(?::[a-fA-F\d]{1,4}){1,5}|:)|(?:[a-fA-F\d]{1,4}:){1}(?:(?::[a-fA-F\d]{1,4}){0,4}:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)(?:\\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)){3}|(?::[a-fA-F\d]{1,4}){1,6}|:)|(?::(?:(?::[a-fA-F\d]{1,4}){0,5}:(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)(?:\\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)){3}|(?::[a-fA-F\d]{1,4}){1,7}|:)))(?:%[0-9a-zA-Z]{1,})?$)');
RegExp url = RegExp(r'(https?|tls):\/\/(www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_\+.~#?&//=]*)');
if (ipAddress.hasMatch(value) == true || url.hasMatch(value) == true) {
setState(() => field['error'] = null);
}
else {
setState(() => field['error'] = AppLocalizations.of(context)!.invalidIpOrUrl);
}
checkValidValues();
}
void checkValidValues() {
if (fallbackControllers.every((element) => element['error'] == null)) {
setState(() => validValues = true);
}
else {
setState(() => validValues = false);
}
}
@override
void initState() {
final dnsProvider = Provider.of<DnsProvider>(context, listen: false);
for (var item in dnsProvider.dnsInfo!.fallbackDns!) {
if (item.contains("#")) {
fallbackControllers.add({
'comment': item
});
}
else {
final controller = TextEditingController();
controller.text = item;
fallbackControllers.add({
'controller': controller,
'error': null,
'isComment': item.contains("#")
});
}
}
validValues = true;
super.initState();
}
@override
Widget build(BuildContext context) {
final dnsProvider = Provider.of<DnsProvider>(context);
final appConfigProvider = Provider.of<AppConfigProvider>(context);
final width = MediaQuery.of(context).size.width;
void saveData() async {
ProcessModal processModal = ProcessModal();
processModal.open(AppLocalizations.of(context)!.savingConfig);
final result = await dnsProvider.saveFallbackDnsConfig({
"fallback_dns": fallbackControllers.map(
(e) => e['controller'] != null
? e['controller'].text
: e['comment']
).toList(),
});
processModal.close();
if (!context.mounted) return;
if (result.successful == true) {
showSnackbar(
appConfigProvider: appConfigProvider,
label: AppLocalizations.of(context)!.dnsConfigSaved,
color: Colors.green
);
}
else if (result.successful == false && result.statusCode == 400) {
showSnackbar(
appConfigProvider: appConfigProvider,
label: AppLocalizations.of(context)!.someValueNotValid,
color: Colors.red
);
}
else {
showSnackbar(
appConfigProvider: appConfigProvider,
label: AppLocalizations.of(context)!.dnsConfigNotSaved,
color: Colors.red
);
}
}
void openAddCommentModal() {
if (width > 900 || !(Platform.isAndroid || Platform.isIOS)) {
showDialog(
context: context,
builder: (context) => CommentModal(
onConfirm: (value) {
setState(() {
fallbackControllers.add({
'comment': value
});
});
},
dialog: true,
),
);
}
else {
showModalBottomSheet(
context: context,
useRootNavigator: true,
builder: (context) => CommentModal(
onConfirm: (value) {
setState(() {
fallbackControllers.add({
'comment': value
});
});
},
dialog: false,
),
backgroundColor: Colors.transparent,
isScrollControlled: true,
isDismissible: true
);
}
}
void openEditCommentModal(Map<String, dynamic> item, int position) {
if (width > 900 || !(Platform.isAndroid || Platform.isIOS)) {
showDialog(
context: context,
builder: (context) => CommentModal(
comment: item['comment'],
onConfirm: (value) {
setState(() => fallbackControllers[position] = { 'comment': value });
},
dialog: true,
),
);
}
else {
showModalBottomSheet(
context: context,
useRootNavigator: true,
builder: (context) => CommentModal(
comment: item['comment'],
onConfirm: (value) {
setState(() => fallbackControllers[position] = { 'comment': value });
},
dialog: false,
),
backgroundColor: Colors.transparent,
isScrollControlled: true,
isDismissible: true
);
}
}
return Scaffold(
appBar: AppBar(
title: Text(AppLocalizations.of(context)!.fallbackDnsServers),
surfaceTintColor: isDesktop(width) ? Colors.transparent : null,
actions: [
IconButton(
onPressed: validValues == true
? () => saveData()
: null,
icon: const Icon(Icons.save_rounded),
tooltip: AppLocalizations.of(context)!.save,
),
const SizedBox(width: 10)
],
),
body: SafeArea(
child: ListView(
padding: const EdgeInsets.only(top: 10),
children: [
Card(
margin: const EdgeInsets.only(
left: 16, right: 16, bottom: 20
),
child: Padding(
padding: const EdgeInsets.all(20),
child: Row(
children: [
Icon(
Icons.info_rounded,
color: Theme.of(context).listTileTheme.iconColor,
),
const SizedBox(width: 20),
Flexible(
child: Text(
AppLocalizations.of(context)!.fallbackDnsServersInfo,
style: TextStyle(
color: Theme.of(context).colorScheme.onSurface
),
)
)
],
),
),
),
const SizedBox(height: 10),
if (fallbackControllers.isEmpty) Column(
children: [
Padding(
padding: const EdgeInsets.all(10),
child: Center(
child: Text(
AppLocalizations.of(context)!.noFallbackDnsAdded,
style: TextStyle(
color: Theme.of(context).colorScheme.onSurfaceVariant,
fontSize: 16
),
),
),
),
const SizedBox(height: 20),
],
),
...fallbackControllers.map((c) => Padding(
padding: const EdgeInsets.only(
left: 16, right: 6, bottom: 20
),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
if (c['controller'] != null) Expanded(
child: TextFormField(
controller: c['controller'],
onChanged: (value) => validateIp(c, value),
decoration: InputDecoration(
prefixIcon: Icon(
c['isComment'] == true
? Icons.comment_rounded
: Icons.dns_rounded
),
border: const OutlineInputBorder(
borderRadius: BorderRadius.all(
Radius.circular(10)
)
),
errorText: c['error'],
labelText: c['isComment'] == true
? AppLocalizations.of(context)!.comment
: AppLocalizations.of(context)!.dnsServer,
)
),
),
const SizedBox(width: 8),
if (c['comment'] != null) Expanded(
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(
c['comment'],
style: TextStyle(
fontSize: 16,
color: Theme.of(context).listTileTheme.iconColor
),
),
IconButton(
onPressed: () => openEditCommentModal(c, fallbackControllers.indexOf(c)),
icon: const Icon(Icons.edit),
tooltip: AppLocalizations.of(context)!.edit,
)
],
),
),
IconButton(
onPressed: () {
setState(() => fallbackControllers = fallbackControllers.where((con) => con != c).toList());
checkValidValues();
},
icon: const Icon(Icons.remove_circle_outline),
tooltip: AppLocalizations.of(context)!.remove,
)
],
),
)),
Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
mainAxisSize: MainAxisSize.min,
children: [
ElevatedButton.icon(
onPressed: openAddCommentModal,
icon: const Icon(Icons.add),
label: Text(AppLocalizations.of(context)!.comment)
),
ElevatedButton.icon(
onPressed: () {
setState(() => fallbackControllers.add({
'controller': TextEditingController(),
'error': null
}));
checkValidValues();
},
icon: const Icon(Icons.add),
label: Text(AppLocalizations.of(context)!.address)
),
],
),
const SizedBox(height: 20)
],
),
),
);
}
}