fluffychat/lib/views/homeserver_picker.dart

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import 'dart:async';
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import 'dart:math';
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import 'package:adaptive_page_layout/adaptive_page_layout.dart';
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import 'package:famedlysdk/famedlysdk.dart';
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import 'package:fluffychat/components/default_app_bar_search_field.dart';
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import 'package:fluffychat/components/matrix.dart';
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import 'package:fluffychat/app_config.dart';
import 'package:fluffychat/config/setting_keys.dart';
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import 'package:fluffychat/utils/platform_infos.dart';
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import 'package:flutter/foundation.dart';
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import 'package:flutter_gen/gen_l10n/l10n.dart';
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import 'package:flutter/material.dart';
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import 'package:future_loading_dialog/future_loading_dialog.dart';
import 'package:receive_sharing_intent/receive_sharing_intent.dart';
import 'package:url_launcher/url_launcher.dart';
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import '../utils/localized_exception_extension.dart';
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import 'package:universal_html/prefer_universal/html.dart' as html;
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class HomeserverPicker extends StatefulWidget {
@override
_HomeserverPickerState createState() => _HomeserverPickerState();
}
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class _HomeserverPickerState extends State<HomeserverPicker> {
bool _isLoading = false;
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String _domain = AppConfig.defaultHomeserver;
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final TextEditingController _controller =
TextEditingController(text: AppConfig.defaultHomeserver);
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StreamSubscription _intentDataStreamSubscription;
void _loginWithToken(String token) {
if (token?.isEmpty ?? true) return;
showFutureLoadingDialog(
context: context,
future: () => Matrix.of(context).client.login(
type: AuthenticationTypes.token,
token: token,
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initialDeviceDisplayName: PlatformInfos.clientName,
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),
);
}
void _processIncomingSharedText(String text) async {
if (text == null || !text.startsWith(AppConfig.appOpenUrlScheme)) return;
AdaptivePageLayout.of(context).popUntilIsFirst();
final token = Uri.parse(text).queryParameters['loginToken'];
_loginWithToken(token);
}
void _initReceiveSharingContent() {
if (!PlatformInfos.isMobile) return;
_intentDataStreamSubscription =
ReceiveSharingIntent.getTextStream().listen(_processIncomingSharedText);
ReceiveSharingIntent.getInitialText().then(_processIncomingSharedText);
}
@override
void initState() {
super.initState();
_initReceiveSharingContent();
}
@override
void dispose() {
super.dispose();
_intentDataStreamSubscription?.cancel();
}
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void _checkHomeserverAction(BuildContext context) async {
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try {
if (_domain.isEmpty) throw L10n.of(context).changeTheHomeserver;
var homeserver = _domain;
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if (!homeserver.startsWith('https://')) {
homeserver = 'https://$homeserver';
}
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setState(() => _isLoading = true);
final wellKnown =
await Matrix.of(context).client.checkHomeserver(homeserver);
var jitsi = wellKnown?.content
?.tryGet<Map<String, dynamic>>('im.vector.riot.jitsi')
?.tryGet<String>('preferredDomain');
if (jitsi != null) {
if (!jitsi.endsWith('/')) {
jitsi += '/';
}
Logs().v('Found custom jitsi instance $jitsi');
await Matrix.of(context)
.store
.setItem(SettingKeys.jitsiInstance, jitsi);
AppConfig.jitsiInstance = jitsi;
}
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final loginTypes = await Matrix.of(context).client.requestLoginTypes();
if (loginTypes.flows
.any((flow) => flow.type == AuthenticationTypes.password)) {
await AdaptivePageLayout.of(context)
.pushNamed(AppConfig.enableRegistration ? '/signup' : '/login');
} else if (loginTypes.flows
.any((flow) => flow.type == AuthenticationTypes.sso)) {
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final redirectUrl = kIsWeb
? html.window.location.href
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: AppConfig.appOpenUrlScheme.toLowerCase() + '://sso';
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await launch(
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'${Matrix.of(context).client.homeserver?.toString()}/_matrix/client/r0/login/sso/redirect?redirectUrl=${Uri.encodeQueryComponent(redirectUrl)}');
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}
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} catch (e) {
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AdaptivePageLayout.of(context).showSnackBar(
SnackBar(content: Text((e as Object).toLocalizedString(context))));
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} finally {
if (mounted) {
setState(() => _isLoading = false);
}
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}
}
@override
Widget build(BuildContext context) {
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final padding = EdgeInsets.symmetric(
horizontal: max((MediaQuery.of(context).size.width - 600) / 2, 0),
);
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if (kIsWeb) {
WidgetsBinding.instance.addPostFrameCallback((_) {
final token =
Uri.parse(html.window.location.href).queryParameters['loginToken'];
_loginWithToken(token);
});
}
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return Scaffold(
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appBar: AppBar(
title: DefaultAppBarSearchField(
prefixText: 'https://',
hintText: L10n.of(context).enterYourHomeserver,
searchController: _controller,
suffix: Icon(Icons.edit_outlined),
padding: padding,
onChanged: (s) => _domain = s,
readOnly: !AppConfig.allowOtherHomeservers,
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onSubmit: (_) => _checkHomeserverAction(context),
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),
elevation: 0,
),
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body: SafeArea(
child: Padding(
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padding: padding,
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child: ListView(
children: [
Hero(
tag: 'loginBanner',
child: Image.asset('assets/banner.png'),
),
Padding(
padding: const EdgeInsets.all(16.0),
child: Text(
AppConfig.applicationWelcomeMessage ??
L10n.of(context).welcomeText,
textAlign: TextAlign.center,
style: TextStyle(
fontSize: 22,
),
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),
),
],
),
),
),
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bottomNavigationBar: Padding(
padding: padding,
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
Hero(
tag: 'loginButton',
child: Container(
width: double.infinity,
padding: EdgeInsets.symmetric(horizontal: 12),
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child: ElevatedButton(
onPressed:
_isLoading ? null : () => _checkHomeserverAction(context),
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child: _isLoading
? LinearProgressIndicator()
: Text(
L10n.of(context).connect.toUpperCase(),
style: TextStyle(color: Colors.white, fontSize: 16),
),
),
),
),
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Wrap(
alignment: WrapAlignment.center,
children: [
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TextButton(
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onPressed: () => launch(AppConfig.privacyUrl),
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child: Text(
L10n.of(context).privacy,
style: TextStyle(
decoration: TextDecoration.underline,
color: Colors.blueGrey,
),
),
),
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TextButton(
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onPressed: () => PlatformInfos.showDialog(context),
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child: Text(
L10n.of(context).about,
style: TextStyle(
decoration: TextDecoration.underline,
color: Colors.blueGrey,
),
),
),
],
),
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],
),
),
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);
}
}