fluffychat/lib/views/homeserver_picker.dart
2021-04-22 08:16:21 +02:00

135 lines
4.7 KiB
Dart

import 'dart:async';
import 'package:adaptive_page_layout/adaptive_page_layout.dart';
import 'package:famedlysdk/famedlysdk.dart';
import 'package:fluffychat/views/ui/homeserver_picker_ui.dart';
import 'package:fluffychat/views/widgets/matrix.dart';
import 'package:fluffychat/config/app_config.dart';
import 'package:fluffychat/config/setting_keys.dart';
import 'package:fluffychat/utils/platform_infos.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter_gen/gen_l10n/l10n.dart';
import 'package:flutter/material.dart';
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';
import '../utils/localized_exception_extension.dart';
import 'package:universal_html/html.dart' as html;
class HomeserverPicker extends StatefulWidget {
@override
HomeserverPickerController createState() => HomeserverPickerController();
}
class HomeserverPickerController extends State<HomeserverPicker> {
bool isLoading = false;
String domain = AppConfig.defaultHomeserver;
final TextEditingController homeserverController =
TextEditingController(text: AppConfig.defaultHomeserver);
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,
initialDeviceDisplayName: PlatformInfos.clientName,
),
);
}
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();
if (kIsWeb) {
WidgetsBinding.instance.addPostFrameCallback((_) {
final token =
Uri.parse(html.window.location.href).queryParameters['loginToken'];
_loginWithToken(token);
});
}
}
@override
void dispose() {
super.dispose();
_intentDataStreamSubscription?.cancel();
}
/// Starts an analysis of the given homeserver. It uses the current domain and
/// makes sure that it is prefixed with https. Then it searches for the
/// well-known information and forwards to the login page depending on the
/// login type. For SSO login only the app opens the page and otherwise it
/// forwards to the route `/signup`.
void checkHomeserverAction() async {
try {
if (domain.isEmpty) throw L10n.of(context).changeTheHomeserver;
var homeserver = domain;
if (!homeserver.startsWith('https://')) {
homeserver = 'https://$homeserver';
}
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 $jitsi');
await Matrix.of(context)
.store
.setItem(SettingKeys.jitsiInstance, jitsi);
AppConfig.jitsiInstance = jitsi;
}
final loginTypes = await Matrix.of(context).client.requestLoginTypes();
if (loginTypes.flows
.any((flow) => flow.type == AuthenticationTypes.password)) {
await AdaptivePageLayout.of(context)
.pushNamed(AppConfig.enableRegistration ? '/signup' : '/login');
} else if (loginTypes.flows
.any((flow) => flow.type == AuthenticationTypes.sso)) {
final redirectUrl = kIsWeb
? html.window.location.href
: AppConfig.appOpenUrlScheme.toLowerCase() + '://sso';
await launch(
'${Matrix.of(context).client.homeserver?.toString()}/_matrix/client/r0/login/sso/redirect?redirectUrl=${Uri.encodeQueryComponent(redirectUrl)}');
}
} catch (e) {
AdaptivePageLayout.of(context).showSnackBar(
SnackBar(content: Text((e as Object).toLocalizedString(context))));
} finally {
if (mounted) {
setState(() => isLoading = false);
}
}
}
@override
Widget build(BuildContext context) => HomeserverPickerUI(this);
}