import 'dart:async'; import 'dart:math'; import 'package:adaptive_page_layout/adaptive_page_layout.dart'; import 'package:famedlysdk/famedlysdk.dart'; import 'package:fluffychat/components/default_app_bar_search_field.dart'; import 'package:fluffychat/components/matrix.dart'; import 'package:fluffychat/app_config.dart'; import 'package:fluffychat/utils/platform_infos.dart'; import 'package:flushbar/flushbar_helper.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/prefer_universal/html.dart' as html; class HomeserverPicker extends StatefulWidget { @override _HomeserverPickerState createState() => _HomeserverPickerState(); } class _HomeserverPickerState extends State { bool _isLoading = false; String _domain = AppConfig.defaultHomeserver; final TextEditingController _controller = 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, userIdentifierType: null, token: token, initialDeviceDisplayName: Matrix.of(context).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(); } @override void dispose() { super.dispose(); _intentDataStreamSubscription?.cancel(); } void _checkHomeserverAction(BuildContext context) async { try { if (_domain.isEmpty) throw L10n.of(context).changeTheHomeserver; var homeserver = _domain; if (!homeserver.startsWith('https://')) { homeserver = 'https://$homeserver'; } setState(() => _isLoading = true); await Matrix.of(context).client.checkHomeserver(homeserver); final loginTypes = await Matrix.of(context).client.requestLoginTypes(); if (loginTypes.flows .any((flow) => flow.type == AuthenticationTypes.password)) { await AdaptivePageLayout.of(context) .pushNamed(AppConfig.enableRegistration ? '/signup' : '/login'); } else if (loginTypes.flows .any((flow) => flow.type == AuthenticationTypes.sso)) { final redirectUrl = kIsWeb ? html.window.location.href : '${Uri.encodeQueryComponent(AppConfig.appOpenUrlScheme.toLowerCase() + '://sso')}'; await launch( '${Matrix.of(context).client.homeserver?.toString()}/_matrix/client/r0/login/sso/redirect?redirectUrl=$redirectUrl'); } } on String catch (e) { // ignore: unawaited_futures FlushbarHelper.createError(message: e).show(context); } catch (e) { // ignore: unawaited_futures FlushbarHelper.createError( message: (e as Object).toLocalizedString(context)) .show(context); } finally { if (mounted) { setState(() => _isLoading = false); } } } @override Widget build(BuildContext context) { final padding = EdgeInsets.symmetric( horizontal: max((MediaQuery.of(context).size.width - 600) / 2, 0), ); if (kIsWeb) { WidgetsBinding.instance.addPostFrameCallback((_) { final token = Uri.parse(html.window.location.href).queryParameters['loginToken']; _loginWithToken(token); }); } return Scaffold( 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, ), elevation: 0, ), body: SafeArea( child: Padding( padding: padding, 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, ), ), ), ], ), ), ), bottomNavigationBar: Padding( padding: padding, child: Column( mainAxisSize: MainAxisSize.min, children: [ Hero( tag: 'loginButton', child: Container( width: double.infinity, height: 56, padding: EdgeInsets.symmetric(horizontal: 12), child: RaisedButton( elevation: 7, color: Theme.of(context).primaryColor, shape: RoundedRectangleBorder( borderRadius: BorderRadius.circular(12), ), child: _isLoading ? LinearProgressIndicator() : Text( L10n.of(context).connect.toUpperCase(), style: TextStyle(color: Colors.white, fontSize: 16), ), onPressed: _isLoading ? null : () => _checkHomeserverAction(context), ), ), ), Wrap( alignment: WrapAlignment.center, children: [ FlatButton( child: Text( L10n.of(context).privacy, style: TextStyle( decoration: TextDecoration.underline, color: Colors.blueGrey, ), ), onPressed: () => launch(AppConfig.privacyUrl), ), FlatButton( child: Text( L10n.of(context).about, style: TextStyle( decoration: TextDecoration.underline, color: Colors.blueGrey, ), ), onPressed: () => PlatformInfos.showDialog(context), ), ], ), ], ), ), ); } }