Files
proxypin/lib/ui/desktop/setting/request_crypto.dart

795 lines
32 KiB
Dart

import 'dart:convert';
import 'dart:io';
import 'dart:math' as math;
import 'package:desktop_multi_window/desktop_multi_window.dart';
import 'package:file_picker/file_picker.dart';
import 'package:flutter/gestures.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_toastr/flutter_toastr.dart';
import 'package:proxypin/l10n/app_localizations.dart';
import 'package:proxypin/network/components/manager/request_crypto_manager.dart';
import 'package:proxypin/network/util/logger.dart';
import 'package:proxypin/ui/component/utils.dart';
import 'package:proxypin/ui/component/widgets.dart';
bool _refresh = false;
/// 刷新配置
Future<void> _refreshConfig({bool force = false}) async {
if (force) {
_refresh = false;
await RequestCryptoManager.instance.then((manager) => manager.flushConfig());
await DesktopMultiWindow.invokeMethod(0, "refreshRequestCrypto");
return;
}
if (_refresh) {
return;
}
_refresh = true;
Future.delayed(const Duration(milliseconds: 1000), () async {
_refresh = false;
await RequestCryptoManager.instance.then((manager) => manager.flushConfig());
await DesktopMultiWindow.invokeMethod(0, "refreshRequestCrypto");
});
}
class RequestCryptoPage extends StatefulWidget {
final int? windowId;
final RequestCryptoManager manager;
const RequestCryptoPage({super.key, this.windowId, required this.manager});
@override
State<RequestCryptoPage> createState() => _RequestCryptoPageState();
}
class _RequestCryptoPageState extends State<RequestCryptoPage> {
AppLocalizations get localizations => AppLocalizations.of(context)!;
RequestCryptoManager get manager => widget.manager;
@override
void initState() {
super.initState();
HardwareKeyboard.instance.addHandler(_onKeyEvent);
}
@override
void dispose() {
HardwareKeyboard.instance.removeHandler(_onKeyEvent);
super.dispose();
}
bool _onKeyEvent(KeyEvent event) {
if (HardwareKeyboard.instance.isLogicalKeyPressed(LogicalKeyboardKey.escape) && Navigator.canPop(context)) {
Navigator.maybePop(context);
return true;
}
if ((HardwareKeyboard.instance.isMetaPressed || HardwareKeyboard.instance.isControlPressed) &&
event.logicalKey == LogicalKeyboardKey.keyW) {
if (Navigator.canPop(context)) {
Navigator.pop(context);
return true;
}
if (widget.windowId != null) WindowController.fromWindowId(widget.windowId!).close();
return true;
}
return false;
}
@override
Widget build(BuildContext context) {
bool isEN = Localizations.localeOf(context).languageCode == 'en';
return Scaffold(
backgroundColor: Theme.of(context).dialogTheme.backgroundColor,
appBar: AppBar(
title: Text(localizations.requestCrypto, style: const TextStyle(fontSize: 16, fontWeight: FontWeight.w500)),
toolbarHeight: 36,
centerTitle: true),
body: Center(
child: Container(
padding: const EdgeInsets.only(left: 15, right: 10),
child: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
Row(children: [
SizedBox(
width: isEN ? 310 : 225,
child: ListTile(
title: Text("${localizations.enable} ${localizations.requestCrypto}"),
trailing: SwitchWidget(
value: manager.enabled,
scale: 0.8,
onChanged: (value) {
manager.enabled = value;
_refreshConfig();
}))),
const SizedBox(width: 10),
Expanded(
child: Row(mainAxisAlignment: MainAxisAlignment.end, children: [
TextButton.icon(
icon: const Icon(Icons.add, size: 18), label: Text(localizations.add), onPressed: _addRule),
const SizedBox(width: 5),
TextButton.icon(
icon: const Icon(Icons.input_rounded, size: 18),
onPressed: _import,
label: Text(localizations.import))
])),
const SizedBox(width: 15)
]),
const SizedBox(height: 16),
CryptoRuleList(manager: manager, windowId: widget.windowId),
]))));
}
Future<void> _addRule() async {
final newRule =
await showDialog<CryptoRule>(context: context, barrierDismissible: false, builder: (_) => CryptoRuleDialog());
if (newRule == null) return;
await manager.addRule(newRule);
setState(() {});
_refreshConfig(force: true);
}
Future<void> _import() async {
String? path;
if (Platform.isMacOS) {
path = await DesktopMultiWindow.invokeMethod(0, "pickFiles", {
"allowedExtensions": ['json']
});
if (widget.windowId != null) WindowController.fromWindowId(widget.windowId!).show();
} else {
FilePickerResult? result =
await FilePicker.platform.pickFiles(type: FileType.custom, allowedExtensions: ['json']);
path = result?.files.single.path;
}
if (path == null) return;
try {
final content = await File(path).readAsString();
final List list = jsonDecode(content);
for (final item in list) {
await manager.addRule(CryptoRule.fromJson(Map<String, dynamic>.from(item)));
}
_refreshConfig(force: true);
if (mounted) FlutterToastr.show(localizations.importSuccess, context);
} catch (e) {
logger.e('导入失败 $path', error: e);
if (mounted) FlutterToastr.show('${localizations.importFailed} $e', context);
}
}
}
// Reusable rule list component extracted from _RequestCryptoPageState
class CryptoRuleList extends StatefulWidget {
final int? windowId;
final RequestCryptoManager manager;
const CryptoRuleList({
required this.manager,
super.key,
this.windowId,
});
@override
State<CryptoRuleList> createState() => _CryptoRuleListState();
}
class _CryptoRuleListState extends State<CryptoRuleList> {
RequestCryptoManager get manager => widget.manager;
Set<int> selected = {};
bool isPressed = false;
Offset? lastPressPosition;
AppLocalizations get localizations => AppLocalizations.of(context)!;
@override
Widget build(BuildContext context) {
return GestureDetector(
onSecondaryTap: () {
if (lastPressPosition == null) {
return;
}
showGlobalMenu(lastPressPosition!);
},
onTapDown: (details) {
if (selected.isEmpty) {
return;
}
if (HardwareKeyboard.instance.isMetaPressed || HardwareKeyboard.instance.isControlPressed) {
return;
}
setState(() {
selected.clear();
});
},
child: Listener(
onPointerUp: (event) => isPressed = false,
onPointerDown: (event) {
lastPressPosition = event.localPosition;
if (event.buttons == kPrimaryMouseButton) {
isPressed = true;
}
},
child: Container(
padding: const EdgeInsets.only(top: 10),
constraints: const BoxConstraints(minHeight: 200, maxHeight: 600),
decoration: BoxDecoration(border: Border.all(color: Colors.grey.withAlpha((0.2 * 255).round()))),
child: Column(
children: [
Padding(
padding: const EdgeInsets.only(left: 5, bottom: 5),
child: Row(mainAxisAlignment: MainAxisAlignment.start, children: [
Container(width: 80, padding: const EdgeInsets.only(left: 10), child: Text(localizations.name)),
SizedBox(width: 80, child: Text(localizations.enable, textAlign: TextAlign.center)),
const VerticalDivider(width: 24),
const Expanded(child: Text('URL', textAlign: TextAlign.center)),
SizedBox(width: 120, child: Text(localizations.cryptoRuleField, textAlign: TextAlign.center)),
SizedBox(width: 220, child: Text('AES Key', textAlign: TextAlign.center)),
]),
),
const Divider(thickness: 0.5, height: 5),
Column(children: rows(manager.rules))
],
),
),
),
);
}
List<Widget> rows(List<CryptoRule> rules) {
var primaryColor = Theme.of(context).colorScheme.primary;
return List.generate(rules.length, (index) {
final rule = rules[index];
return InkWell(
highlightColor: Colors.transparent,
splashColor: Colors.transparent,
hoverColor: primaryColor.withOpacity(0.3),
onDoubleTap: () => showEdit(index),
onSecondaryTapDown: (details) => showMenus(details, index),
onHover: (hover) {
if (isPressed && !selected.contains(index)) {
setState(() {
selected.add(index);
});
}
},
onTap: () {
if (HardwareKeyboard.instance.isMetaPressed || HardwareKeyboard.instance.isControlPressed) {
setState(() {
selected.contains(index) ? selected.remove(index) : selected.add(index);
});
return;
}
if (selected.isEmpty) {
return;
}
setState(() {
selected.clear();
});
},
child: Container(
color: selected.contains(index)
? primaryColor.withOpacity(0.6)
: index.isEven
? Colors.grey.withOpacity(0.1)
: null,
height: 32,
padding: const EdgeInsets.all(5),
child: Row(children: [
SizedBox(
width: 80,
child: Text(rule.name,
overflow: TextOverflow.ellipsis, style: const TextStyle(fontSize: 13, fontWeight: FontWeight.w500)),
),
SizedBox(
width: 80,
child: SwitchWidget(
scale: 0.7,
value: rule.enabled,
onChanged: (val) {
rules[index].enabled = val;
_refreshConfig();
})),
const SizedBox(width: 8),
Expanded(
child: Text(rule.urlPattern.isEmpty ? localizations.emptyMatchAll : rule.urlPattern,
overflow: TextOverflow.ellipsis)),
SizedBox(
width: 120,
child: Text(rule.field ?? '', overflow: TextOverflow.ellipsis, textAlign: TextAlign.center)),
SizedBox(
width: 220,
child: Text(_formatKey(rule.config.key), overflow: TextOverflow.ellipsis, textAlign: TextAlign.center)),
]),
),
);
});
}
Future<void> showEdit([int? index]) async {
final rule = index == null ? null : manager.rules[index];
if (!mounted) {
return;
}
final updated = await showDialog<CryptoRule>(context: context, builder: (_) => CryptoRuleDialog(rule: rule));
if (updated == null) return;
if (index == null) {
await manager.addRule(updated);
} else {
await manager.updateRule(index, updated);
}
_refreshConfig(force: true);
setState(() {});
}
Future<void> removeRules(List<int> indexes) async {
if (indexes.isEmpty) return;
showConfirmDialog(context, content: localizations.confirmContent, onConfirm: () async {
indexes.sort((a, b) => b.compareTo(a));
for (final index in indexes) {
await manager.removeRule(index);
}
selected.clear();
_refreshConfig(force: true);
});
}
void showMenus(TapDownDetails details, int index) {
if (selected.length > 1) {
showGlobalMenu(details.globalPosition);
return;
}
setState(() {
selected.add(index);
});
showContextMenu(context, details.globalPosition, items: [
PopupMenuItem(height: 35, child: Text(localizations.edit), onTap: () => showEdit(index)),
PopupMenuItem(height: 35, child: Text(localizations.delete), onTap: () => removeRules([index]))
]);
}
void showGlobalMenu(Offset offset) {
showContextMenu(context, offset, items: [
PopupMenuItem(height: 35, onTap: showEdit, child: Text(localizations.newBuilt)),
PopupMenuItem(height: 35, child: Text(localizations.export), onTap: () => export(selected.toList())),
const PopupMenuDivider(),
PopupMenuItem(height: 35, child: Text(localizations.enableSelect), onTap: () => enableStatus(true)),
PopupMenuItem(height: 35, child: Text(localizations.disableSelect), onTap: () => enableStatus(false)),
const PopupMenuDivider(),
PopupMenuItem(height: 35, child: Text(localizations.deleteSelect), onTap: () => removeRules(selected.toList()))
]);
}
Future<void> enableStatus(bool enable) async {
if (selected.isEmpty) return;
for (final entry in selected) {
manager.rules[entry].enabled = enable;
}
setState(() {});
_refreshConfig(force: true);
}
Future<void> export(List<int> indexes) async {
if (indexes.isEmpty) return;
indexes.sort();
final data = indexes.map((i) => manager.rules[i].toJson()).toList();
String? path;
if (Platform.isMacOS) {
path = await DesktopMultiWindow.invokeMethod(0, "saveFile", {"fileName": 'request_crypto.json'});
if (widget.windowId != null) WindowController.fromWindowId(widget.windowId!).show();
} else {
path = await FilePicker.platform.saveFile(fileName: 'request_crypto.json');
}
if (path == null) return;
await File(path).writeAsString(jsonEncode(data));
if (mounted) FlutterToastr.show(localizations.exportSuccess, context);
}
// Format AES key for display: strip optional 'base64:' prefix and truncate long values
String _formatKey(String? raw) {
if (raw == null || raw.trim().isEmpty) return '';
var k = raw.trim();
if (k.startsWith('base64:')) {
k = k.substring(7);
}
if (k.length > 40) return '${k.substring(0, 40)}...';
return k;
}
}
class CryptoRuleDialog extends StatefulWidget {
final CryptoRule? rule;
const CryptoRuleDialog({super.key, this.rule});
@override
State<CryptoRuleDialog> createState() => _CryptoRuleDialogState();
}
class _CryptoRuleDialogState extends State<CryptoRuleDialog> {
late TextEditingController nameController;
late TextEditingController patternController;
late TextEditingController keyController;
late TextEditingController ivController;
late TextEditingController fieldInputController;
String mode = 'CBC';
String padding = 'PKCS7';
int length = 128;
bool enabled = true;
// single field support
late String fieldItem;
final _formKey = GlobalKey<FormState>();
String keyFormat = 'text';
String ivSource = 'manual';
int ivPrefixLength = 16;
@override
void initState() {
super.initState();
final rule = widget.rule;
nameController = TextEditingController(text: rule?.name ?? '');
patternController = TextEditingController(text: rule?.urlPattern ?? '');
keyController = TextEditingController(text: rule?.config.key);
ivController = TextEditingController(text: rule?.config.iv);
// single field support: initialize from first existing field if present
fieldInputController = TextEditingController(text: rule?.field ?? '');
mode = rule?.config.mode ?? 'CBC';
padding = rule?.config.padding ?? 'PKCS7';
length = rule?.config.keyLength ?? 256;
enabled = rule?.enabled ?? true;
fieldItem = rule?.field ?? '';
// detect stored key/iv prefix (support base64: or plain text)
final storedKey = rule?.config.key ?? '';
if (storedKey.startsWith('base64:')) {
keyFormat = 'base64';
keyController.text = storedKey.substring(7);
} else {
keyFormat = 'text';
keyController.text = storedKey;
}
final storedIv = rule?.config.iv ?? '';
// keep stored iv as-is if prefixed with base64:, otherwise show raw value
if (storedIv.startsWith('base64:')) {
ivController.text = storedIv.substring(7);
} else {
ivController.text = storedIv;
}
// iv source and prefix length
ivSource = rule?.config.ivSource ?? 'manual';
ivPrefixLength = rule?.config.ivPrefixLength ?? 16;
}
@override
void dispose() {
nameController.dispose();
patternController.dispose();
keyController.dispose();
ivController.dispose();
fieldInputController.dispose();
super.dispose();
}
InputDecoration decorate(BuildContext context, String? label, {String? hint, Widget? suffixIcon}) {
return InputDecoration(
floatingLabelBehavior: FloatingLabelBehavior.always,
labelText: label,
hintText: hint,
hintStyle: TextStyle(color: Colors.grey.shade500, fontSize: 15),
isDense: true,
border: const OutlineInputBorder());
}
@override
Widget build(BuildContext context) {
final l10n = AppLocalizations.of(context)!;
final theme = Theme.of(context);
return AlertDialog(
title: Text(widget.rule == null ? l10n.newBuilt : l10n.edit),
scrollable: true,
titlePadding: const EdgeInsets.only(top: 10, left: 20),
actionsPadding: const EdgeInsets.only(right: 15, bottom: 15),
contentPadding: const EdgeInsets.symmetric(horizontal: 20, vertical: 5),
content: Container(
width: 550,
constraints: const BoxConstraints(minHeight: 200, maxHeight: 560),
child: Form(
key: _formKey,
child: SingleChildScrollView(
child: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Card(
color: Theme.of(context).colorScheme.surfaceContainerLow.withAlpha((0.5 * 255).round()),
elevation: 0,
shape: RoundedRectangleBorder(
side: BorderSide(color: Theme.of(context).dividerColor.withAlpha((0.2 * 255).round())),
borderRadius: BorderRadius.circular(8),
),
child: Padding(
padding: const EdgeInsets.all(10),
child: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
Text(l10n.match, style: theme.textTheme.titleSmall),
const SizedBox(height: 12),
TextFormField(controller: nameController, decoration: decorate(context, l10n.name)),
const SizedBox(height: 12),
TextFormField(
controller: patternController,
decoration: decorate(context, "URL", hint: 'https://www.example.com/api/*'),
validator: (val) => val == null || val.trim().isEmpty ? l10n.cannotBeEmpty : null,
),
const SizedBox(height: 12),
TextFormField(
controller: fieldInputController,
decoration: decorate(context, l10n.cryptoRuleField, hint: 'data.field'),
),
const SizedBox(height: 12),
SwitchListTile(
dense: true,
contentPadding: EdgeInsets.zero,
title: Text(l10n.enable),
value: enabled,
onChanged: (value) => setState(() => enabled = value),
),
]),
),
),
const SizedBox(height: 12),
Card(
color: Theme.of(context).colorScheme.surfaceContainerLow.withAlpha((0.5 * 255).round()),
elevation: 0,
shape: RoundedRectangleBorder(
side: BorderSide(color: Theme.of(context).dividerColor.withAlpha((0.2 * 255).round())),
borderRadius: BorderRadius.circular(8),
),
child: Padding(
padding: const EdgeInsets.all(10),
child: Column(crossAxisAlignment: CrossAxisAlignment.start, children: [
Text("AES", style: theme.textTheme.titleSmall),
const SizedBox(height: 12),
Row(children: [
Text("Mode", style: theme.textTheme.labelMedium),
const SizedBox(width: 8),
Container(
height: 42,
padding: const EdgeInsets.symmetric(horizontal: 8),
decoration: BoxDecoration(
border: Border.all(color: Theme.of(context).dividerColor.withAlpha((0.12 * 255).round())),
borderRadius: BorderRadius.circular(6),
),
child: DropdownButtonHideUnderline(
child: DropdownButton<String>(
value: mode,
items: const [
DropdownMenuItem(value: 'ECB', child: Text('ECB')),
DropdownMenuItem(value: 'CBC', child: Text('CBC')),
],
onChanged: (v) => setState(() => mode = v ?? 'ECB'),
style: Theme.of(context).textTheme.bodyMedium,
),
),
),
const SizedBox(width: 12),
Text('Padding', style: theme.textTheme.labelMedium),
const SizedBox(width: 8),
Container(
height: 42,
padding: const EdgeInsets.symmetric(horizontal: 8),
decoration: BoxDecoration(
border: Border.all(color: Theme.of(context).dividerColor.withAlpha((0.12 * 255).round())),
borderRadius: BorderRadius.circular(6),
),
child: DropdownButtonHideUnderline(
child: DropdownButton<String>(
value: padding,
items: const [
DropdownMenuItem(value: 'PKCS7', child: Text('PKCS7')),
DropdownMenuItem(value: 'ZeroPadding', child: Text('ZeroPadding')),
],
onChanged: (v) => setState(() => padding = v ?? 'PKCS7'),
style: Theme.of(context).textTheme.bodyMedium,
),
),
),
const SizedBox(width: 12),
Text('Key Length', style: theme.textTheme.labelMedium),
const SizedBox(width: 8),
Container(
height: 42,
padding: const EdgeInsets.symmetric(horizontal: 8),
decoration: BoxDecoration(
border: Border.all(color: Theme.of(context).dividerColor.withAlpha((0.12 * 255).round())),
borderRadius: BorderRadius.circular(6),
),
child: DropdownButtonHideUnderline(
child: DropdownButton<int>(
value: length,
items: const [
DropdownMenuItem(value: 128, child: Text('128')),
DropdownMenuItem(value: 192, child: Text('192')),
DropdownMenuItem(value: 256, child: Text('256')),
],
onChanged: (v) => setState(() => length = v ?? 128),
style: Theme.of(context).textTheme.bodyMedium,
),
),
),
]),
const SizedBox(height: 12),
// Key input and format selector in a single row for nicer UI
Row(children: [
Container(
height: 42,
width: 92,
padding: const EdgeInsets.symmetric(horizontal: 6),
decoration: BoxDecoration(
border: Border.all(color: Theme.of(context).dividerColor.withAlpha((0.12 * 255).round())),
borderRadius: BorderRadius.circular(6),
),
child: DropdownButtonHideUnderline(
child: DropdownButton<String>(
value: keyFormat,
items: const [
DropdownMenuItem(value: 'text', child: Text('text')),
DropdownMenuItem(value: 'base64', child: Text('base64')),
],
onChanged: (v) => setState(() => keyFormat = v ?? 'text'),
style: Theme.of(context).textTheme.bodyMedium,
iconEnabledColor: Theme.of(context).colorScheme.primary,
),
),
),
const SizedBox(width: 12),
Expanded(
child: SizedBox(
child: TextFormField(
controller: keyController,
maxLength: 128,
decoration: decorate(context, "Key").copyWith(counterText: ''),
validator: (val) => val == null || val.trim().isEmpty ? l10n.cannotBeEmpty : null,
),
),
),
]),
const SizedBox(height: 12),
// Compact single-line IV controls for CBC
if (mode == 'CBC')
Row(children: [
Container(
height: 42,
constraints: const BoxConstraints(minWidth: 92),
padding: const EdgeInsets.symmetric(horizontal: 6),
decoration: BoxDecoration(
border: Border.all(color: Theme.of(context).dividerColor.withAlpha((0.12 * 255).round())),
borderRadius: BorderRadius.circular(6),
),
child: DropdownButtonHideUnderline(
child: DropdownButton<String>(
value: ivSource,
items: [
DropdownMenuItem(value: 'manual', child: Text(l10n.manual)),
DropdownMenuItem(value: 'prefix', child: Text(l10n.cryptoIvPrefixLabel)),
],
onChanged: (v) => setState(() => ivSource = v ?? 'manual'),
style: Theme.of(context).textTheme.bodyMedium,
iconEnabledColor: Theme.of(context).colorScheme.primary,
),
),
),
const SizedBox(width: 8),
// narrow IV input when manual (fixed width for compactness)
if (ivSource == 'manual')
SizedBox(
width: 260,
height: 42,
child: TextFormField(
controller: ivController,
decoration: decorate(context, 'IV').copyWith(
isDense: true,
contentPadding: const EdgeInsets.symmetric(horizontal: 8, vertical: 10)),
validator: (val) => (ivSource == 'manual' && (val == null || val.trim().isEmpty))
? l10n.cannotBeEmpty
: null,
),
),
if (ivSource == 'manual') const SizedBox(width: 8),
if (ivSource == 'prefix')
Tooltip(
message: l10n.cryptoIvPrefixTooltip,
child: Icon(Icons.info_outline, size: 16, color: theme.dividerColor)),
if (ivSource == 'prefix') const SizedBox(width: 8),
// compact numeric stepper (prefix length)
if (ivSource == 'prefix')
Container(
decoration: BoxDecoration(
border: Border.all(color: theme.dividerColor.withAlpha(0x40)),
borderRadius: BorderRadius.circular(4)),
child: Row(children: [
IconButton(
padding: EdgeInsets.zero,
icon: const Icon(Icons.remove, size: 14),
onPressed: ivSource == 'prefix'
? () => setState(() => ivPrefixLength = math.max(1, ivPrefixLength - 1))
: null,
constraints: const BoxConstraints.tightFor(width: 28, height: 28),
),
SizedBox(
width: 36,
child: Center(
child: Text(ivPrefixLength.toString(), style: theme.textTheme.bodySmall))),
IconButton(
padding: EdgeInsets.zero,
icon: const Icon(Icons.add, size: 14),
onPressed: ivSource == 'prefix'
? () => setState(() => ivPrefixLength = math.min(1024, ivPrefixLength + 1))
: null,
constraints: const BoxConstraints.tightFor(width: 28, height: 28),
),
]),
),
]),
]),
),
),
],
),
),
),
),
actions: [
TextButton(onPressed: () => Navigator.of(context).pop(), child: Text(l10n.cancel)),
FilledButton(
onPressed: () {
if (!(_formKey.currentState as FormState).validate()) return;
String outKey = keyController.text.trim();
// add prefix based on selected keyFormat if user did not already include explicit prefix
if (!(outKey.startsWith('base64:'))) {
if (keyFormat == 'base64') {
outKey = 'base64:$outKey';
}
}
// only set explicit IV when manual source is used
String outIv = '';
if (ivSource == 'manual') {
outIv = ivController.text.trim();
if (!(outIv.startsWith('base64:'))) {
if (keyFormat == 'base64') {
outIv = 'base64:$outIv';
}
}
}
// save single field from the input controller
final savedField = fieldInputController.text.trim();
final updated = (widget.rule ?? CryptoRule.newRule()).copyWith(
name: nameController.text.trim(),
urlPattern: patternController.text.trim(),
field: savedField,
enabled: enabled,
config: CryptoKeyConfig(
key: outKey,
iv: outIv,
ivSource: ivSource,
ivPrefixLength: ivPrefixLength,
mode: mode,
padding: padding,
keyLength: length),
);
Navigator.of(context).pop(updated);
},
child: Text(l10n.save),
),
],
);
}
}