feat: New onboarding design

lib/pages/homeserver_picker/homeserver_picker.dart

@@ -1,19 +1,12 @@
 import 'dart:async';
 
-import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 
-import 'package:flutter_gen/gen_l10n/l10n.dart';
-import 'package:flutter_web_auth/flutter_web_auth.dart';
-import 'package:future_loading_dialog/future_loading_dialog.dart';
 import 'package:matrix/matrix.dart';
-import 'package:universal_html/html.dart' as html;
 import 'package:vrouter/vrouter.dart';
 
 import 'package:fluffychat/config/app_config.dart';
 import 'package:fluffychat/pages/homeserver_picker/homeserver_picker_view.dart';
-import 'package:fluffychat/utils/famedlysdk_store.dart';
-import 'package:fluffychat/utils/platform_infos.dart';
 import 'package:fluffychat/widgets/matrix.dart';
 import '../../utils/localized_exception_extension.dart';
 
@@ -26,182 +19,58 @@ class HomeserverPicker extends StatefulWidget {
 
 class HomeserverPickerController extends State<HomeserverPicker> {
   bool isLoading = false;
-  String domain = AppConfig.defaultHomeserver;
   final TextEditingController homeserverController =
       TextEditingController(text: AppConfig.defaultHomeserver);
-  StreamSubscription? _intentDataStreamSubscription;
   String? error;
-  Timer? _coolDown;
-
-  void setDomain(String domain) {
-    this.domain = domain;
-    _coolDown?.cancel();
-    if (domain.isNotEmpty) {
-      _coolDown =
-          Timer(const Duration(milliseconds: 500), checkHomeserverAction);
-    }
-  }
-
-  void _loginWithToken(String token) {
-    if (token.isEmpty) return;
-
-    showFutureLoadingDialog(
-      context: context,
-      future: () async {
-        if (Matrix.of(context).getLoginClient().homeserver == null) {
-          await Matrix.of(context).getLoginClient().checkHomeserver(
-                await Store()
-                    .getItem(HomeserverPickerController.ssoHomeserverKey),
-              );
-        }
-        await Matrix.of(context).getLoginClient().login(
-              LoginType.mLoginToken,
-              token: token,
-              initialDeviceDisplayName: PlatformInfos.clientName,
-            );
-      },
-    );
-  }
-
-  @override
-  void initState() {
-    super.initState();
-    checkHomeserverAction();
-  }
-
-  @override
-  void dispose() {
-    super.dispose();
-    _intentDataStreamSubscription?.cancel();
-  }
-
-  String? _lastCheckedHomeserver;
 
   /// 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.
   Future<void> checkHomeserverAction() async {
-    _coolDown?.cancel();
-    if (_lastCheckedHomeserver == domain) return;
-    if (domain.isEmpty) throw L10n.of(context)!.changeTheHomeserver;
-    var homeserver = domain;
-
-    if (!homeserver.startsWith('https://')) {
-      homeserver = 'https://$homeserver';
-    }
-
     setState(() {
-      error = _rawLoginTypes = registrationSupported = null;
+      error = null;
       isLoading = true;
     });
 
     try {
-      await Matrix.of(context).getLoginClient().checkHomeserver(homeserver);
+      homeserverController.text =
+          homeserverController.text.trim().toLowerCase().replaceAll(' ', '-');
+      var homeserver = Uri.parse(homeserverController.text);
+      if (homeserver.scheme.isEmpty) {
+        homeserver = Uri.https(homeserverController.text, '');
+      }
+      final matrix = Matrix.of(context);
+      matrix.loginHomeserverSummary =
+          await matrix.getLoginClient().checkHomeserver(homeserver);
+      final ssoSupported = matrix.loginHomeserverSummary!.loginFlows
+          .any((flow) => flow.type == 'm.login.sso');
 
-      _rawLoginTypes = await Matrix.of(context).getLoginClient().request(
-            RequestType.GET,
-            '/client/r0/login',
-          );
       try {
         await Matrix.of(context).getLoginClient().register();
-        registrationSupported = true;
+        matrix.loginRegistrationSupported = true;
       } on MatrixException catch (e) {
-        registrationSupported = e.requireAdditionalAuthentication;
+        matrix.loginRegistrationSupported = e.requireAdditionalAuthentication;
+      }
+
+      if (!ssoSupported && matrix.loginRegistrationSupported == false) {
+        // Server does not support SSO or registration. We can skip to login page:
+        VRouter.of(context).to('login');
+      } else {
+        VRouter.of(context).to('connect');
       }
     } catch (e) {
       setState(() => error = (e).toLocalizedString(context));
     } finally {
-      _lastCheckedHomeserver = domain;
       if (mounted) {
         setState(() => isLoading = false);
       }
     }
   }
 
-  Map<String, dynamic>? _rawLoginTypes;
-  bool? registrationSupported;
-
-  List<IdentityProvider> get identityProviders {
-    if (!ssoLoginSupported) return [];
-    final rawProviders = _rawLoginTypes!.tryGetList('flows')!.singleWhere(
-        (flow) =>
-            flow['type'] == AuthenticationTypes.sso)['identity_providers'];
-    final list = (rawProviders as List)
-        .map((json) => IdentityProvider.fromJson(json))
-        .toList();
-    if (PlatformInfos.isCupertinoStyle) {
-      list.sort((a, b) => a.brand == 'apple' ? -1 : 1);
-    }
-    return list;
-  }
-
-  bool get passwordLoginSupported =>
-      Matrix.of(context)
-          .client
-          .supportedLoginTypes
-          .contains(AuthenticationTypes.password) &&
-      _rawLoginTypes!
-          .tryGetList('flows')!
-          .any((flow) => flow['type'] == AuthenticationTypes.password);
-
-  bool get ssoLoginSupported =>
-      Matrix.of(context)
-          .client
-          .supportedLoginTypes
-          .contains(AuthenticationTypes.sso) &&
-      _rawLoginTypes!
-          .tryGetList('flows')!
-          .any((flow) => flow['type'] == AuthenticationTypes.sso);
-
-  static const String ssoHomeserverKey = 'sso-homeserver';
-
-  void ssoLoginAction(String id) async {
-    if (kIsWeb) {
-      // We store the homserver in the local storage instead of a redirect
-      // parameter because of possible CSRF attacks.
-      Store().setItem(ssoHomeserverKey,
-          Matrix.of(context).getLoginClient().homeserver.toString());
-    }
-    final redirectUrl = kIsWeb
-        ? html.window.origin! + '/web/auth.html'
-        : AppConfig.appOpenUrlScheme.toLowerCase() + '://login';
-    final url =
-        '${Matrix.of(context).getLoginClient().homeserver?.toString()}/_matrix/client/r0/login/sso/redirect/${Uri.encodeComponent(id)}?redirectUrl=${Uri.encodeQueryComponent(redirectUrl)}';
-    final urlScheme = Uri.parse(redirectUrl).scheme;
-    final result = await FlutterWebAuth.authenticate(
-      url: url,
-      callbackUrlScheme: urlScheme,
-    );
-    final token = Uri.parse(result).queryParameters['loginToken'];
-    if (token != null) _loginWithToken(token);
-  }
-
-  void signUpAction() => VRouter.of(context).to(
-        'signup',
-        queryParameters: {'domain': domain},
-      );
-
   @override
   Widget build(BuildContext context) {
     Matrix.of(context).navigatorContext = context;
     return HomeserverPickerView(this);
   }
 }
-
-class IdentityProvider {
-  final String? id;
-  final String? name;
-  final String? icon;
-  final String? brand;
-
-  IdentityProvider({this.id, this.name, this.icon, this.brand});
-
-  factory IdentityProvider.fromJson(Map<String, dynamic> json) =>
-      IdentityProvider(
-        id: json['id'],
-        name: json['name'],
-        icon: json['icon'],
-        brand: json['brand'],
-      );
-}