180 lines
8.6 KiB
Dart
180 lines
8.6 KiB
Dart
// GCG.MeinCantor - Die Schulplattform für Cantorianer.
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// Copyright (C) 2021-2022 Georg-Cantor-Gymnasium Halle (Saale)
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published
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// by the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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import 'dart:convert';
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import 'package:flutter/material.dart';
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import 'package:http/http.dart';
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import 'package:material_design_icons_flutter/material_design_icons_flutter.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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import 'package:meincantor/networking.dart';
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import 'package:meincantor/dashboard.dart';
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Future<bool> checkKey() async {
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SharedPreferences prefs = await SharedPreferences.getInstance();
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String? apiKey = prefs.getString('api_key');
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return apiKey != null && apiKey.isNotEmpty;
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}
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class Login extends StatelessWidget {
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Login({Key? key}) : super(key: key);
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final userController = TextEditingController();
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final passwordController = TextEditingController();
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final otpController = TextEditingController();
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final devIdController = TextEditingController();
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@override
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Widget build(BuildContext context) {
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return LayoutBuilder(
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builder: (context, constraints) {
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double widgetWidth = constraints.maxWidth;
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//double widgetHeight = constraints.maxHeight;
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int factor;
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if (widgetWidth <= 600) {
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factor = 1;
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} else if (widgetWidth <= 1400) {
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factor = 2;
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} else if (widgetWidth <= 2000) {
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factor = 3;
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} else {
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factor = 4;
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}
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return Scaffold(
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body: Center(
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child: SingleChildScrollView(
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child: Padding(
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padding: const EdgeInsets.fromLTRB(20, 20, 20, 20),
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child: Container(
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constraints: BoxConstraints(
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maxWidth:
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MediaQuery.of(context).size.width / factor,
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),
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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MediaQuery.of(context).platformBrightness ==
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Brightness.light
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? Image.asset(
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"assets/images/meincantor-big.png",
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width: 256)
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: Image.asset(
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"assets/images/meincantor-big-dark.png",
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width: 256),
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const Divider(),
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AutofillGroup(
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child: Column(
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children: [
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TextField(
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autofillHints: const [
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AutofillHints.username
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],
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decoration: const InputDecoration(
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icon: Icon(MdiIcons.identifier),
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border: OutlineInputBorder(),
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labelText: 'Benutzername',
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),
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controller: userController,
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),
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const Divider(),
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TextField(
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autofillHints: const [
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AutofillHints.password
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],
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decoration: const InputDecoration(
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icon: Icon(MdiIcons.lock),
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border: OutlineInputBorder(),
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labelText: 'Passwort',
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),
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obscureText: true,
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controller: passwordController,
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),
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],
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)),
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const Divider(),
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TextField(
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decoration: const InputDecoration(
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icon: Icon(MdiIcons.twoFactorAuthentication),
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border: OutlineInputBorder(),
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labelText: '2F2-Code',
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),
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obscureText: true,
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controller: otpController,
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),
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const Divider(),
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OutlinedButton(
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onPressed: () async {
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SharedPreferences prefs =
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await SharedPreferences.getInstance();
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Response loginResponse = await getToken(
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userController.text,
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passwordController.text,
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otpController.text,
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devIdController.text);
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if (loginResponse.statusCode == 200) {
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String apiKey = jsonDecode(utf8.decode(
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loginResponse.bodyBytes))['token'];
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prefs.setString('api_key', apiKey);
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dynamic userinfo = jsonDecode(
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await getUserInfo(
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userController.text,
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passwordController.text,
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otpController.text,
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devIdController.text));
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prefs.setString('user',
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userinfo['preferred_username']);
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prefs.setString('user',
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userinfo['preferred_username']);
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prefs.setString('name', userinfo['name']);
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prefs.setString(
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'email', userinfo['email']);
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prefs.setString(
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'class_num',
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userinfo['groups'][0]
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.replaceAll("_", "/"));
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} else if (loginResponse.statusCode ==
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401) {
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String text = loginResponse.body;
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final snackBar = SnackBar(
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content: Text('Fehler: $text'));
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ScaffoldMessenger.of(context)
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.showSnackBar(snackBar);
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}
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if (prefs.getString('api_key') != null &&
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prefs
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.getString('api_key')!
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.isNotEmpty) {
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Future.delayed(Duration.zero, () {
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Navigator.pushReplacement(
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context,
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MaterialPageRoute(
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builder: (context) =>
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const Dashboard()),
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);
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});
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}
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},
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child: const Text("Anmelden"))
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],
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),
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)))));
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},
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);
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}
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}
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