import 'dart:async'; import 'dart:math'; import 'package:adaptive_dialog/adaptive_dialog.dart'; import 'package:famedlysdk/famedlysdk.dart'; import 'package:future_loading_dialog/future_loading_dialog.dart'; import 'package:fluffychat/components/matrix.dart'; import 'package:flushbar/flushbar_helper.dart'; import 'package:flutter/material.dart'; import 'package:flutter_gen/gen_l10n/l10n.dart'; class Login extends StatefulWidget { @override _LoginState createState() => _LoginState(); } class _LoginState extends State { final TextEditingController usernameController = TextEditingController(); final TextEditingController passwordController = TextEditingController(); String usernameError; String passwordError; bool loading = false; bool showPassword = false; void login(BuildContext context) async { var matrix = Matrix.of(context); if (usernameController.text.isEmpty) { setState(() => usernameError = L10n.of(context).pleaseEnterYourUsername); } else { setState(() => usernameError = null); } if (passwordController.text.isEmpty) { setState(() => passwordError = L10n.of(context).pleaseEnterYourPassword); } else { setState(() => passwordError = null); } if (usernameController.text.isEmpty || passwordController.text.isEmpty) { return; } setState(() => loading = true); try { await matrix.client.login( user: usernameController.text, password: passwordController.text, initialDeviceDisplayName: matrix.clientName); } on MatrixException catch (exception) { setState(() => passwordError = exception.errorMessage); return setState(() => loading = false); } catch (exception) { setState(() => passwordError = exception.toString()); return setState(() => loading = false); } if (mounted) setState(() => loading = false); } 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) && newDomain != Matrix.of(context).client.homeserver.toString()) { await showFutureLoadingDialog( context: context, future: () => Matrix.of(context).client.checkHomeserver(newDomain), ); setState(() => usernameError = null); } } catch (e) { setState(() => usernameError = e.toString()); } } void _passwordForgotten(BuildContext context) async { final input = await showTextInputDialog( context: context, title: L10n.of(context).enterAnEmailAddress, textFields: [ DialogTextField( hintText: L10n.of(context).enterAnEmailAddress, keyboardType: TextInputType.emailAddress, ), ], ); if (input == null) return; final clientSecret = DateTime.now().millisecondsSinceEpoch.toString(); final response = await showFutureLoadingDialog( context: context, future: () => Matrix.of(context).client.resetPasswordUsingEmail( input.single, clientSecret, sendAttempt++, ), ); if (response.error != null) return; final ok = await showOkAlertDialog( context: context, title: L10n.of(context).weSentYouAnEmail, message: L10n.of(context).pleaseClickOnLink, okLabel: L10n.of(context).iHaveClickedOnLink, ); if (ok == null) return; final password = await showTextInputDialog( context: context, title: L10n.of(context).chooseAStrongPassword, textFields: [ DialogTextField( hintText: '******', obscureText: true, minLines: 1, maxLines: 1, ), ], ); if (password == null) return; final success = await showFutureLoadingDialog( context: context, future: () => Matrix.of(context).client.changePassword( password.single, auth: AuthenticationThreePidCreds( type: AuthenticationTypes.emailIdentity, threepidCreds: [ ThreepidCreds( sid: (response as RequestTokenResponse).sid, clientSecret: clientSecret, ), ], ), ), ); if (success.error == null) { FlushbarHelper.createSuccess( message: L10n.of(context).passwordHasBeenChanged); } } static int sendAttempt = 0; @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( leading: loading ? Container() : BackButton(), elevation: 0, title: Text( L10n.of(context).logInTo(Matrix.of(context) .client .homeserver .toString() .replaceFirst('https://', '')), ), ), body: Builder(builder: (context) { return ListView( padding: EdgeInsets.symmetric( horizontal: max((MediaQuery.of(context).size.width - 600) / 2, 0)), children: [ Padding( padding: const EdgeInsets.all(12.0), child: TextField( readOnly: loading, autocorrect: false, autofocus: true, onChanged: (t) => _checkWellKnownWithCoolDown(t, context), controller: usernameController, autofillHints: [AutofillHints.username], decoration: InputDecoration( prefixIcon: Icon(Icons.account_box_outlined), hintText: '@${L10n.of(context).username.toLowerCase()}:domain', errorText: usernameError, labelText: L10n.of(context).username), ), ), Padding( padding: const EdgeInsets.all(12.0), child: TextField( readOnly: loading, autocorrect: false, autofillHints: [AutofillHints.password], controller: passwordController, obscureText: !showPassword, onSubmitted: (t) => login(context), decoration: InputDecoration( prefixIcon: Icon(Icons.lock_outlined), hintText: '****', errorText: passwordError, suffixIcon: IconButton( icon: Icon(showPassword ? Icons.visibility_off_outlined : Icons.visibility_outlined), onPressed: () => setState(() => showPassword = !showPassword), ), labelText: L10n.of(context).password), ), ), SizedBox(height: 12), Hero( tag: 'loginButton', child: Container( height: 56, padding: EdgeInsets.symmetric(horizontal: 12), child: RaisedButton( elevation: 7, color: Theme.of(context).primaryColor, shape: RoundedRectangleBorder( borderRadius: BorderRadius.circular(12), ), child: loading ? LinearProgressIndicator() : Text( L10n.of(context).login.toUpperCase(), style: TextStyle(color: Colors.white, fontSize: 16), ), onPressed: loading ? null : () => login(context), ), ), ), Center( child: FlatButton( child: Text( L10n.of(context).passwordForgotten, style: TextStyle( color: Colors.blue, decoration: TextDecoration.underline, ), ), onPressed: () => _passwordForgotten(context), ), ), ], ); }), ); } }