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222 lines
6.7 KiB
222 lines
6.7 KiB
import 'dart:convert';
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import 'package:flutter/material.dart';
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import 'package:http/http.dart' as http;
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import '/components/flash_message.dart';
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import '/models/my_profile.dart';
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import '/utils/storage/session_cookie.dart';
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class LoginResponse {
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final String userId;
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final String username;
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final String publicKey;
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final String privateKey;
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final String symmetricKey;
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final String? imageLink;
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const LoginResponse({
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required this.publicKey,
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required this.privateKey,
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required this.symmetricKey,
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required this.userId,
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required this.username,
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this.imageLink,
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});
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factory LoginResponse.fromJson(Map<String, dynamic> json) {
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return LoginResponse(
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userId: json['user_id'],
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username: json['username'],
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publicKey: json['asymmetric_public_key'],
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privateKey: json['asymmetric_private_key'],
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symmetricKey: json['symmetric_key'],
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imageLink: json['image_link'],
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);
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}
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}
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class Login extends StatelessWidget {
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const Login({Key? key}) : super(key: key);
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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title: null,
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automaticallyImplyLeading: true,
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leading: IconButton(icon: const Icon(Icons.arrow_back),
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onPressed:() => {
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Navigator.pop(context)
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}
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),
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backgroundColor: Colors.transparent,
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shadowColor: Colors.transparent,
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),
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body: const SafeArea(
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child: LoginWidget(),
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),
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);
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}
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}
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class LoginWidget extends StatefulWidget {
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const LoginWidget({Key? key}) : super(key: key);
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@override
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State<LoginWidget> createState() => _LoginWidgetState();
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}
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class _LoginWidgetState extends State<LoginWidget> {
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final _formKey = GlobalKey<FormState>();
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final TextEditingController _usernameController = TextEditingController();
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final TextEditingController _passwordController = TextEditingController();
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@override
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Widget build(BuildContext context) {
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const TextStyle inputTextStyle = TextStyle(
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fontSize: 18,
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);
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final OutlineInputBorder inputBorderStyle = OutlineInputBorder(
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borderRadius: BorderRadius.circular(5),
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borderSide: const BorderSide(
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color: Colors.transparent,
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)
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);
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final ButtonStyle buttonStyle = ElevatedButton.styleFrom(
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backgroundColor: Theme.of(context).colorScheme.surface,
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foregroundColor: Theme.of(context).colorScheme.onSurface,
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minimumSize: const Size.fromHeight(50),
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padding: const EdgeInsets.symmetric(horizontal: 10, vertical: 10),
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textStyle: TextStyle(
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fontSize: 20,
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fontWeight: FontWeight.bold,
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color: Theme.of(context).colorScheme.error,
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),
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);
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return Center(
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child: Form(
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key: _formKey,
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child: Center(
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child: Padding(
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padding: const EdgeInsets.only(
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left: 20,
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right: 20,
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top: 0,
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bottom: 80,
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),
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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crossAxisAlignment: CrossAxisAlignment.center,
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children: [
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Text(
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'Login',
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style: TextStyle(
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fontSize: 35,
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color: Theme.of(context).colorScheme.onBackground,
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),
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),
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const SizedBox(height: 30),
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TextFormField(
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controller: _usernameController,
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decoration: InputDecoration(
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hintText: 'Username',
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enabledBorder: inputBorderStyle,
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focusedBorder: inputBorderStyle,
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),
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style: inputTextStyle,
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// The validator receives the text that the user has entered.
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validator: (value) {
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if (value == null || value.isEmpty) {
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return 'Enter a username';
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}
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return null;
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},
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),
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const SizedBox(height: 10),
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TextFormField(
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controller: _passwordController,
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obscureText: true,
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enableSuggestions: false,
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autocorrect: false,
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decoration: InputDecoration(
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hintText: 'Password',
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enabledBorder: inputBorderStyle,
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focusedBorder: inputBorderStyle,
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),
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style: inputTextStyle,
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// The validator receives the text that the user has entered.
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validator: (value) {
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if (value == null || value.isEmpty) {
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return 'Enter a password';
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}
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return null;
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},
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),
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const SizedBox(height: 15),
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ElevatedButton(
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style: buttonStyle,
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onPressed: () {
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if (_formKey.currentState!.validate()) {
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(content: Text('Processing Data')),
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);
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login()
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.then((val) {
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Navigator.
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pushNamedAndRemoveUntil(
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context,
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'/home',
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ModalRoute.withName('/home'),
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);
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}).catchError((error) {
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showMessage(
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'Could not login to Envelope, please try again later.',
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context,
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);
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});
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}
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},
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child: const Text('Submit'),
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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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}
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Future<dynamic> login() async {
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final resp = await http.post(
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await MyProfile.getServerUrl('api/v1/login'),
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headers: <String, String>{
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'Content-Type': 'application/json; charset=UTF-8',
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},
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body: jsonEncode(<String, String>{
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'username': _usernameController.text,
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'password': _passwordController.text,
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}),
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);
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if (resp.statusCode != 200) {
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throw Exception(resp.body);
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}
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String? rawCookie = resp.headers['set-cookie'];
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if (rawCookie != null) {
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int index = rawCookie.indexOf(';');
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setSessionCookie((index == -1) ? rawCookie : rawCookie.substring(0, index));
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}
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return await MyProfile.login(
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json.decode(resp.body),
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_passwordController.text,
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);
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}
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}
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