gecko/lib/ui/myWallets/walletOptions.dart

342 lines
12 KiB
Dart

import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:dubp/dubp.dart';
import 'package:gecko/ui/myWallets/changePin.dart';
import 'dart:io';
import 'dart:async';
import 'package:path_provider/path_provider.dart';
import 'package:pin_code_fields/pin_code_fields.dart';
import 'package:sentry/sentry.dart' as sentry;
class WalletOptions extends StatefulWidget {
const WalletOptions({Key keyMyWallets, @required this.walletName})
: super(key: keyMyWallets);
final String walletName;
@override
WalletOptionsState createState() => WalletOptionsState();
}
class WalletOptionsState extends State<WalletOptions> {
StreamController<ErrorAnimationType> errorController;
Directory appPath;
TextEditingController _pubkey = new TextEditingController();
TextEditingController _enterPin = new TextEditingController();
final formKey = GlobalKey<FormState>();
bool hasError = false;
String validPin = 'NO PIN';
var pinColor = Color(0xffF9F9F1);
bool isWalletUnlock = false;
var walletPin = '';
Future<NewWallet> get badWallet => null;
void initState() {
super.initState();
errorController = StreamController<ErrorAnimationType>();
DubpRust.setup();
isWalletUnlock = false;
}
@override
Widget build(BuildContext context) {
return Scaffold(
resizeToAvoidBottomInset: false,
appBar: AppBar(
title: SizedBox(
height: 25,
child: Text(widget.walletName),
)),
body: Center(
child: SafeArea(
child: Column(children: <Widget>[
Visibility(
visible: isWalletUnlock,
child: Expanded(
child: Column(children: <Widget>[
SizedBox(height: 15),
Text(
'Clé publique:',
style: TextStyle(
fontSize: 15.0,
color: Colors.grey[600],
fontWeight: FontWeight.w400),
),
SizedBox(height: 15),
Text(
this._pubkey.text,
style: TextStyle(
fontSize: 14.0,
color: Colors.black,
fontWeight: FontWeight.bold),
),
Expanded(
child: Align(
alignment: Alignment.bottomCenter,
child: SizedBox(
height: 50,
width: 300,
child: ElevatedButton(
style: ElevatedButton.styleFrom(
elevation: 5,
primary: Color(
0xffFFD68E), //Color(0xffFFD68E), // background
onPrimary: Colors.black, // foreground
),
onPressed: () {
// changePin(widget.walletName, this.walletPin);
Navigator.push(
context,
MaterialPageRoute(builder: (context) {
return ChangePinScreen(
walletName: widget.walletName,
oldPin: this.walletPin);
}),
);
},
child: Text('Changer mon code secret',
style: TextStyle(fontSize: 20)))))),
SizedBox(height: 30),
SizedBox(
height: 50,
width: 300,
child: ElevatedButton(
style: ElevatedButton.styleFrom(
elevation: 6,
primary:
Colors.red, //Color(0xffFFD68E), // background
onPrimary: Colors.black, // foreground
),
onPressed: () {
deleteWallet(widget.walletName);
},
child: Text('Supprimer ce portefeuille',
style: TextStyle(fontSize: 20)))),
SizedBox(height: 50),
Text(
'Portefeuille déverrouillé',
style: TextStyle(
color: Colors.green,
fontWeight: FontWeight.w700,
fontSize: 15),
),
SizedBox(height: 10)
]))),
Visibility(
visible: !isWalletUnlock,
child: Expanded(
child: Column(children: <Widget>[
SizedBox(height: 80),
Text(
'Veuillez tapper votre code secret pour dévérouiller votre portefeuille.',
textAlign: TextAlign.center,
style: TextStyle(
fontSize: 15.0,
color: Colors.black,
fontWeight: FontWeight.w400),
),
SizedBox(height: 50),
Form(
key: formKey,
child: Padding(
padding: const EdgeInsets.symmetric(
vertical: 8.0, horizontal: 30),
child: PinCodeTextField(
autoFocus: true,
appContext: context,
pastedTextStyle: TextStyle(
color: Colors.green.shade600,
fontWeight: FontWeight.bold,
),
length: 6,
obscureText: false,
obscuringCharacter: '*',
animationType: AnimationType.fade,
validator: (v) {
if (v.length < 6) {
return "Votre code PIN fait 6 caractères";
} else {
return null;
}
},
pinTheme: PinTheme(
shape: PinCodeFieldShape.box,
borderRadius: BorderRadius.circular(5),
fieldHeight: 60,
fieldWidth: 50,
activeFillColor:
hasError ? Colors.orange : Colors.white,
),
cursorColor: Colors.black,
animationDuration: Duration(milliseconds: 300),
textStyle: TextStyle(fontSize: 20, height: 1.6),
backgroundColor: pinColor,
enableActiveFill: false,
errorAnimationController: errorController,
controller: _enterPin,
keyboardType: TextInputType.text,
boxShadows: [
BoxShadow(
offset: Offset(0, 1),
color: Colors.black12,
blurRadius: 10,
)
],
onCompleted: (_pin) async {
print("Completed");
final resultWallet =
await readLocalWallet(_pin.toUpperCase());
if (resultWallet == 'bad') {
errorController.add(ErrorAnimationType
.shake); // Triggering error shake animation
setState(() {
hasError = true;
pinColor = Colors.red[200];
});
} else {
pinColor = Colors.green[200];
// setState(() {});
// await Future.delayed(Duration(milliseconds: 50));
this.walletPin = _pin.toUpperCase();
isWalletUnlock = true;
setState(() {});
}
},
onChanged: (value) {
if (pinColor != Color(0xffF9F9F1)) {
setState(() {
pinColor = Color(0xffF9F9F1);
});
}
print(value);
},
)),
)
]))),
]))));
}
Future getPubkeyFromDewif(_dewif, _pin) async {
String _pubkey;
RegExp regExp = new RegExp(
r'^[A-Z0-9]+$',
caseSensitive: false,
multiLine: false,
);
if (regExp.hasMatch(_pin) == true && _pin.length == 6) {
print("Le format du code PIN est correct.");
} else {
print('Format de code PIN invalide');
return 'false';
}
try {
_pubkey = await DubpRust.getDewifPublicKey(dewif: _dewif, pin: _pin);
setState(() {
this._pubkey.text = _pubkey;
});
return _pubkey;
} catch (e, stack) {
print('Bad PIN code !');
print(e);
if (kReleaseMode) {
await sentry.Sentry.captureException(
e,
stackTrace: stack,
);
}
return 'false';
}
}
Future readLocalWallet(String _pin) async {
// print(pin);
try {
final file = await _localWallet(widget.walletName);
String _localDewif = await file.readAsString();
String _localPubkey;
if ((_localPubkey = await getPubkeyFromDewif(_localDewif, _pin)) !=
'false') {
setState(() {
this._pubkey.text = _localPubkey;
});
return _localDewif;
} else {
throw 'Bad pubkey';
}
} catch (e) {
print('ERROR READING FILE: $e');
setState(() {
this._pubkey.clear();
});
return 'bad';
}
}
Future<int> deleteWallet(_name) async {
try {
final appPath = await _localPath;
final _walletFile = Directory('$appPath/wallets/$_name');
print('DELETE THAT ?: $_walletFile');
final bool _answer = await _confirmDeletingWallet();
if (_answer) {
_walletFile.deleteSync(recursive: true);
Navigator.pop(context);
}
return 0;
} catch (e) {
return 1;
}
}
Future<bool> _confirmDeletingWallet() async {
return showDialog<bool>(
context: context,
barrierDismissible: true, // user must tap button!
builder: (BuildContext context) {
return AlertDialog(
title: Text(
'Êtes-vous sûr de vouloir supprimer le portefeuille "${widget.walletName}" ?'),
content: SingleChildScrollView(
child: ListBody(
children: <Widget>[
Text(
'Vous pourrez restaurer ce portefeuille à tout moment grace à votre phrase de restauration.'),
],
),
),
actions: <Widget>[
TextButton(
child: Text("Non"),
onPressed: () {
Navigator.pop(context, false);
},
),
TextButton(
child: Text("Oui"),
onPressed: () {
Navigator.pop(context, true);
},
),
],
);
},
);
}
Future<String> get _localPath async {
final directory = await getApplicationDocumentsDirectory();
return directory.path;
}
Future<File> _localWallet(_name) async {
final path = await _localPath;
return File('$path/wallets/$_name/wallet.dewif');
}
}