FurryChat/lib/views/login.dart

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Dart
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import 'dart:async';
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import 'dart:math';
import 'package:famedlysdk/famedlysdk.dart';
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import 'package:fluffychat/components/dialogs/simple_dialogs.dart';
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import 'package:fluffychat/components/matrix.dart';
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import 'package:fluffychat/utils/app_route.dart';
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import 'package:fluffychat/utils/firebase_controller.dart';
import 'package:flutter/foundation.dart';
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import 'package:flutter/material.dart';
import 'package:flutter_gen/gen_l10n/l10n.dart';
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import 'chat_list.dart';
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class Login extends StatefulWidget {
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@override
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_LoginState createState() => _LoginState();
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}
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class _LoginState extends State<Login> {
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final TextEditingController usernameController = TextEditingController();
final TextEditingController passwordController = TextEditingController();
String usernameError;
String passwordError;
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bool loading = false;
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bool showPassword = false;
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void login(BuildContext context) async {
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var matrix = Matrix.of(context);
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if (usernameController.text.isEmpty) {
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setState(() => usernameError = L10n.of(context).pleaseEnterYourUsername);
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} else {
setState(() => usernameError = null);
}
if (passwordController.text.isEmpty) {
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setState(() => passwordError = L10n.of(context).pleaseEnterYourPassword);
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} else {
setState(() => passwordError = null);
}
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if (usernameController.text.isEmpty || passwordController.text.isEmpty) {
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return;
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}
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setState(() => loading = true);
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try {
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await matrix.client.login(
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user: usernameController.text,
password: passwordController.text,
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initialDeviceDisplayName: matrix.widget.clientName);
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} on MatrixException catch (exception) {
setState(() => passwordError = exception.errorMessage);
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return setState(() => loading = false);
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} catch (exception) {
setState(() => passwordError = exception.toString());
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return setState(() => loading = false);
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}
if (!kIsWeb) {
try {
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await FirebaseController.setupFirebase(
matrix,
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matrix.widget.clientName,
);
} catch (exception) {
await matrix.client.logout();
matrix.clean();
setState(() => passwordError = exception.toString());
return setState(() => loading = false);
}
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}
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setState(() => loading = false);
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await Navigator.of(context).pushAndRemoveUntil(
AppRoute.defaultRoute(context, ChatListView()), (r) => false);
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}
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Timer _coolDown;
void _checkWellKnownWithCoolDown(String userId, BuildContext context) async {
_coolDown?.cancel();
_coolDown = Timer(
Duration(seconds: 1),
() => _checkWellKnown(userId, context),
);
}
void _checkWellKnown(String userId, BuildContext context) async {
setState(() => usernameError = null);
if (!userId.isValidMatrixId) return;
try {
final wellKnownInformations = await Matrix.of(context)
.client
.getWellKnownInformationsByUserId(userId);
final newDomain = wellKnownInformations.mHomeserver?.baseUrl;
if ((newDomain?.isNotEmpty ?? false) &&
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newDomain != Matrix.of(context).client.homeserver.toString()) {
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await SimpleDialogs(context).tryRequestWithErrorToast(
Matrix.of(context).client.checkServer(newDomain));
setState(() => usernameError = null);
}
} catch (e) {
setState(() => usernameError = e.toString());
}
}
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@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
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leading: loading ? Container() : null,
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elevation: 0,
title: Text(
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L10n.of(context).logInTo(Matrix.of(context)
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.client
.homeserver
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.toString()
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.replaceFirst('https://', '')),
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),
),
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body: Builder(builder: (context) {
return ListView(
padding: EdgeInsets.symmetric(
horizontal:
max((MediaQuery.of(context).size.width - 600) / 2, 0)),
children: <Widget>[
ListTile(
leading: CircleAvatar(
child: Icon(Icons.account_box,
color: Theme.of(context).primaryColor),
),
title: TextField(
readOnly: loading,
autocorrect: false,
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autofocus: true,
keyboardType: TextInputType.emailAddress,
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onChanged: (t) => _checkWellKnownWithCoolDown(t, context),
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controller: usernameController,
decoration: InputDecoration(
hintText:
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'@${L10n.of(context).username.toLowerCase()}:domain',
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errorText: usernameError,
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labelText: L10n.of(context).username),
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),
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),
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ListTile(
leading: CircleAvatar(
backgroundColor: Theme.of(context).brightness == Brightness.dark
? Color(0xff121212)
: Colors.white,
child: Icon(Icons.lock, color: Theme.of(context).primaryColor),
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),
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title: TextField(
readOnly: loading,
autocorrect: false,
controller: passwordController,
obscureText: !showPassword,
onSubmitted: (t) => login(context),
decoration: InputDecoration(
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hintText: '****',
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errorText: passwordError,
suffixIcon: IconButton(
icon: Icon(showPassword
? Icons.visibility_off
: Icons.visibility),
onPressed: () =>
setState(() => showPassword = !showPassword),
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),
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labelText: L10n.of(context).password),
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),
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),
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SizedBox(height: 20),
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Hero(
tag: 'loginButton',
child: Container(
height: 50,
padding: EdgeInsets.symmetric(horizontal: 12),
child: RaisedButton(
elevation: 7,
color: Theme.of(context).primaryColor,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(6),
),
child: loading
? CircularProgressIndicator()
: Text(
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L10n.of(context).login.toUpperCase(),
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style: TextStyle(color: Colors.white, fontSize: 16),
),
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onPressed: loading ? null : () => login(context),
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),
),
),
],
);
}),
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);
}
}