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[client] Basic login page

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This commit is contained in:
Abhishek Shroff
2024-08-10 22:23:12 +05:30
parent ec658e4fa7
commit df1df10c99
5 changed files with 342 additions and 186 deletions
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167
client/lib/login_page.dart Normal file
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@@ -0,0 +1,167 @@
import 'dart:convert';
import 'dart:io';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:http/http.dart';
import 'package:phylum/util/dialogs.dart';
import 'package:uri/uri.dart';
typedef AuthRequestBuilder = Future<Request?> Function(BuildContext, UriBuilder);
class LoginPage extends StatefulWidget {
const LoginPage({super.key});
@override
State<LoginPage> createState() => _LoginPageState();
}
class _LoginPageState extends State<LoginPage> {
final Client _client = Client();
String _email = '';
String _password = '';
Uri? apiBase;
String? urlError;
String? emailError;
bool get apiBaseValid => kIsWeb || (apiBase?.hasScheme == true && apiBase?.hasAuthority == true);
@override
void initState() {
super.initState();
}
void _performLogin(BuildContext context, String email, String password) async {
final apiBaseUrl = apiBase;
if (!apiBaseValid) return;
showProgressDialog(
context,
barrierDismissible: false,
title: 'Logging in...',
);
final baseUri = apiBaseUrl == null ? UriBuilder() : UriBuilder.fromUri(apiBaseUrl);
final path = baseUri.path.split('/').where((s) => s.isNotEmpty).join('/');
baseUri.path = '$path/api/v1/auth/login';
baseUri.queryParameters['username'] = email;
baseUri.queryParameters['password'] = password;
final request = Request('post', baseUri.build());
try {
final response = await _client.send(request);
final responseString = await response.stream.bytesToString();
final json = jsonDecode(responseString) as Map;
if (context.mounted) {
Navigator.of(context).pop();
if (response.statusCode != 200) {
showAlertDialog(
context,
barrierDismissible: false,
title: 'Login Error',
message: json['msg'],
);
} else {
showAlertDialog(
context,
barrierDismissible: false,
title: 'Login Successful',
message: responseString,
);
}
}
} on SocketException {
if (context.mounted) {
Navigator.of(context).pop();
showAlertDialog(
context,
barrierDismissible: false,
title: 'Login Error',
message: 'Unable to reach server',
);
}
} catch (e) {
if (context.mounted) {
Navigator.of(context).pop();
showAlertDialog(
context,
barrierDismissible: false,
title: 'Login Error',
message: e.toString(),
);
}
rethrow;
}
}
@override
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: ConstrainedBox(
constraints: const BoxConstraints(maxWidth: 360),
child: Padding(
padding: const EdgeInsets.all(16.0),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
if (!kIsWeb)
TextField(
decoration: InputDecoration(
label: const Text('Server URL'),
hintText: 'http://localhost:1234/',
errorText: urlError,
),
keyboardType: TextInputType.url,
onChanged: (value) {
setState(() {
apiBase = Uri.tryParse(value);
urlError = apiBase == null ? 'Invalid URL' : null;
});
},
),
TextField(
decoration: const InputDecoration(
label: Text('Username'),
),
keyboardType: TextInputType.emailAddress,
onChanged: (value) {
setState(() {
_email = value.trim();
});
},
),
TextField(
decoration: const InputDecoration(
label: Text('Password'),
),
obscureText: true,
keyboardType: TextInputType.visiblePassword,
onChanged: (value) {
setState(() {
_password = value.trim();
});
},
onSubmitted: (value) {
_performLogin(context, _email, _password);
},
),
Padding(
padding: const EdgeInsets.only(top: 16.0),
child: ElevatedButton(
onPressed: apiBaseValid && _email.isNotEmpty
? () async {
_performLogin(context, _email, _password);
}
: null,
child: const Text('Login'),
),
),
],
),
),
),
),
);
}
}

112
client/lib/main.dart
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@@ -1,4 +1,5 @@
import 'package:flutter/material.dart';
import 'package:phylum/login_page.dart';
void main() {
runApp(const MyApp());
@@ -7,119 +8,16 @@ void main() {
class MyApp extends StatelessWidget {
const MyApp({super.key});
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
title: 'Phylum',
debugShowCheckedModeBanner: false,
theme: ThemeData(
// This is the theme of your application.
//
// TRY THIS: Try running your application with "flutter run". You'll see
// the application has a purple toolbar. Then, without quitting the app,
// try changing the seedColor in the colorScheme below to Colors.green
// and then invoke "hot reload" (save your changes or press the "hot
// reload" button in a Flutter-supported IDE, or press "r" if you used
// the command line to start the app).
//
// Notice that the counter didn't reset back to zero; the application
// state is not lost during the reload. To reset the state, use hot
// restart instead.
//
// This works for code too, not just values: Most code changes can be
// tested with just a hot reload.
colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
colorScheme: ColorScheme.fromSeed(seedColor: Colors.orange),
useMaterial3: true,
),
home: const MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key, required this.title});
// This widget is the home page of your application. It is stateful, meaning
// that it has a State object (defined below) that contains fields that affect
// how it looks.
// This class is the configuration for the state. It holds the values (in this
// case the title) provided by the parent (in this case the App widget) and
// used by the build method of the State. Fields in a Widget subclass are
// always marked "final".
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
int _counter = 0;
void _incrementCounter() {
setState(() {
// This call to setState tells the Flutter framework that something has
// changed in this State, which causes it to rerun the build method below
// so that the display can reflect the updated values. If we changed
// _counter without calling setState(), then the build method would not be
// called again, and so nothing would appear to happen.
_counter++;
});
}
@override
Widget build(BuildContext context) {
// This method is rerun every time setState is called, for instance as done
// by the _incrementCounter method above.
//
// The Flutter framework has been optimized to make rerunning build methods
// fast, so that you can just rebuild anything that needs updating rather
// than having to individually change instances of widgets.
return Scaffold(
appBar: AppBar(
// TRY THIS: Try changing the color here to a specific color (to
// Colors.amber, perhaps?) and trigger a hot reload to see the AppBar
// change color while the other colors stay the same.
backgroundColor: Theme.of(context).colorScheme.inversePrimary,
// Here we take the value from the MyHomePage object that was created by
// the App.build method, and use it to set our appbar title.
title: Text(widget.title),
),
body: Center(
// Center is a layout widget. It takes a single child and positions it
// in the middle of the parent.
child: Column(
// Column is also a layout widget. It takes a list of children and
// arranges them vertically. By default, it sizes itself to fit its
// children horizontally, and tries to be as tall as its parent.
//
// Column has various properties to control how it sizes itself and
// how it positions its children. Here we use mainAxisAlignment to
// center the children vertically; the main axis here is the vertical
// axis because Columns are vertical (the cross axis would be
// horizontal).
//
// TRY THIS: Invoke "debug painting" (choose the "Toggle Debug Paint"
// action in the IDE, or press "p" in the console), to see the
// wireframe for each widget.
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
const Text(
'You have pushed the button this many times:',
),
Text(
'$_counter',
style: Theme.of(context).textTheme.headlineMedium,
),
],
),
),
floatingActionButton: FloatingActionButton(
onPressed: _incrementCounter,
tooltip: 'Increment',
child: const Icon(Icons.add),
), // This trailing comma makes auto-formatting nicer for build methods.
home: const LoginPage(),
);
}
}

75
client/lib/util/dialogs.dart Normal file
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@@ -0,0 +1,75 @@
import 'package:flutter/material.dart';
Future showProgressDialog(
BuildContext context, {
bool barrierDismissible = false,
String? title,
String? message,
}) {
return showDialog(
context: context,
barrierDismissible: barrierDismissible,
builder: (context) => AlertDialog(
title: (title == null) ? null : Text(title),
content: SizedBox(
width: 360,
child: Row(
children: <Widget>[
const Padding(
padding: EdgeInsets.only(right: 16),
child: CircularProgressIndicator(),
),
if (message != null)
Text(
message,
softWrap: true,
overflow: TextOverflow.fade,
),
],
),
),
),
);
}
Future<bool?> showAlertDialog(
BuildContext context, {
bool barrierDismissible = false,
String? title,
String? message,
String? negativeText,
String positiveText = 'OK',
}) {
return showDialog(
context: context,
barrierDismissible: barrierDismissible,
builder: (context) => AlertDialog(
title: (title == null) ? null : Text(title),
scrollable: (message?.length ?? 0) > 300,
content: (message == null)
? null
: ConstrainedBox(
constraints: const BoxConstraints(maxWidth: 360),
child: Text(
message,
softWrap: true,
),
),
actions: <Widget>[
if (negativeText != null)
TextButton(
child: Text(negativeText),
onPressed: () {
Navigator.of(context).pop(false);
},
),
ElevatedButton(
child: Text(positiveText),
onPressed: () {
Navigator.of(context).pop(true);
},
),
],
),
);
}

91
client/pubspec.lock
View File

@@ -41,14 +41,14 @@ packages:
url: "https://pub.dev"
source: hosted
version: "1.18.0"
cupertino_icons:
dependency: "direct main"
crypto:
dependency: transitive
description:
name: cupertino_icons
sha256: ba631d1c7f7bef6b729a622b7b752645a2d076dba9976925b8f25725a30e1ee6
name: crypto
sha256: ff625774173754681d66daaf4a448684fb04b78f902da9cb3d308c19cc5e8bab
url: "https://pub.dev"
source: hosted
version: "1.0.8"
version: "3.0.3"
fake_async:
dependency: transitive
description:
@@ -75,6 +75,30 @@ packages:
description: flutter
source: sdk
version: "0.0.0"
hive:
dependency: transitive
description:
name: hive
sha256: "8dcf6db979d7933da8217edcec84e9df1bdb4e4edc7fc77dbd5aa74356d6d941"
url: "https://pub.dev"
source: hosted
version: "2.2.3"
http:
dependency: "direct main"
description:
name: http
sha256: b9c29a161230ee03d3ccf545097fccd9b87a5264228c5d348202e0f0c28f9010
url: "https://pub.dev"
source: hosted
version: "1.2.2"
http_parser:
dependency: transitive
description:
name: http_parser
sha256: "2aa08ce0341cc9b354a498388e30986515406668dbcc4f7c950c3e715496693b"
url: "https://pub.dev"
source: hosted
version: "4.0.2"
leak_tracker:
dependency: transitive
description:
@@ -107,6 +131,14 @@ packages:
url: "https://pub.dev"
source: hosted
version: "4.0.0"
logger:
dependency: transitive
description:
name: logger
sha256: "697d067c60c20999686a0add96cf6aba723b3aa1f83ecf806a8097231529ec32"
url: "https://pub.dev"
source: hosted
version: "2.4.0"
matcher:
dependency: transitive
description:
@@ -131,6 +163,15 @@ packages:
url: "https://pub.dev"
source: hosted
version: "1.15.0"
offtheline:
dependency: "direct main"
description:
path: "."
ref: "4d7cc0438b25e5c97a7b8bd6b77f6e34121c43aa"
resolved-ref: "4d7cc0438b25e5c97a7b8bd6b77f6e34121c43aa"
url: "https://github.com/shroff/offtheline.git"
source: git
version: "0.12.0"
path:
dependency: transitive
description:
@@ -139,6 +180,14 @@ packages:
url: "https://pub.dev"
source: hosted
version: "1.9.0"
quiver:
dependency: transitive
description:
name: quiver
sha256: b1c1ac5ce6688d77f65f3375a9abb9319b3cb32486bdc7a1e0fdf004d7ba4e47
url: "https://pub.dev"
source: hosted
version: "3.2.1"
sky_engine:
dependency: transitive
description: flutter
@@ -160,6 +209,14 @@ packages:
url: "https://pub.dev"
source: hosted
version: "1.11.1"
state_notifier:
dependency: transitive
description:
name: state_notifier
sha256: b8677376aa54f2d7c58280d5a007f9e8774f1968d1fb1c096adcb4792fba29bb
url: "https://pub.dev"
source: hosted
version: "1.0.0"
stream_channel:
dependency: transitive
description:
@@ -192,6 +249,22 @@ packages:
url: "https://pub.dev"
source: hosted
version: "0.7.2"
typed_data:
dependency: transitive
description:
name: typed_data
sha256: facc8d6582f16042dd49f2463ff1bd6e2c9ef9f3d5da3d9b087e244a7b564b3c
url: "https://pub.dev"
source: hosted
version: "1.3.2"
uri:
dependency: "direct main"
description:
name: uri
sha256: "889eea21e953187c6099802b7b4cf5219ba8f3518f604a1033064d45b1b8268a"
url: "https://pub.dev"
source: hosted
version: "1.0.0"
vector_math:
dependency: transitive
description:
@@ -208,6 +281,14 @@ packages:
url: "https://pub.dev"
source: hosted
version: "14.2.4"
web:
dependency: transitive
description:
name: web
sha256: d43c1d6b787bf0afad444700ae7f4db8827f701bc61c255ac8d328c6f4d52062
url: "https://pub.dev"
source: hosted
version: "1.0.0"
sdks:
dart: ">=3.5.0 <4.0.0"
flutter: ">=3.18.0-18.0.pre.54"

83
client/pubspec.yaml
View File

@@ -1,90 +1,25 @@
name: phylum
description: "Self-hosted file storage"
# The following line prevents the package from being accidentally published to
# pub.dev using `flutter pub publish`. This is preferred for private packages.
publish_to: 'none' # Remove this line if you wish to publish to pub.dev
# The following defines the version and build number for your application.
# A version number is three numbers separated by dots, like 1.2.43
# followed by an optional build number separated by a +.
# Both the version and the builder number may be overridden in flutter
# build by specifying --build-name and --build-number, respectively.
# In Android, build-name is used as versionName while build-number used as versionCode.
# Read more about Android versioning at https://developer.android.com/studio/publish/versioning
# In iOS, build-name is used as CFBundleShortVersionString while build-number is used as CFBundleVersion.
# Read more about iOS versioning at
# https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
# In Windows, build-name is used as the major, minor, and patch parts
# of the product and file versions while build-number is used as the build suffix.
version: 1.0.0+1
publish_to: 'none'
version: 0.0.1+1
environment:
sdk: ^3.5.0
# Dependencies specify other packages that your package needs in order to work.
# To automatically upgrade your package dependencies to the latest versions
# consider running `flutter pub upgrade --major-versions`. Alternatively,
# dependencies can be manually updated by changing the version numbers below to
# the latest version available on pub.dev. To see which dependencies have newer
# versions available, run `flutter pub outdated`.
dependencies:
flutter:
sdk: flutter
# The following adds the Cupertino Icons font to your application.
# Use with the CupertinoIcons class for iOS style icons.
cupertino_icons: ^1.0.8
http:
offtheline:
git:
url: https://github.com/shroff/offtheline.git
ref: 4d7cc0438b25e5c97a7b8bd6b77f6e34121c43aa
uri:
dev_dependencies:
flutter_test:
sdk: flutter
# The "flutter_lints" package below contains a set of recommended lints to
# encourage good coding practices. The lint set provided by the package is
# activated in the `analysis_options.yaml` file located at the root of your
# package. See that file for information about deactivating specific lint
# rules and activating additional ones.
flutter_lints: ^4.0.0
# For information on the generic Dart part of this file, see the
# following page: https://dart.dev/tools/pub/pubspec
# The following section is specific to Flutter packages.
flutter:
# The following line ensures that the Material Icons font is
# included with your application, so that you can use the icons in
# the material Icons class.
uses-material-design: true
# To add assets to your application, add an assets section, like this:
# assets:
# - images/a_dot_burr.jpeg
# - images/a_dot_ham.jpeg
# An image asset can refer to one or more resolution-specific "variants", see
# https://flutter.dev/to/resolution-aware-images
# For details regarding adding assets from package dependencies, see
# https://flutter.dev/to/asset-from-package
# To add custom fonts to your application, add a fonts section here,
# in this "flutter" section. Each entry in this list should have a
# "family" key with the font family name, and a "fonts" key with a
# list giving the asset and other descriptors for the font. For
# example:
# fonts:
# - family: Schyler
# fonts:
# - asset: fonts/Schyler-Regular.ttf
# - asset: fonts/Schyler-Italic.ttf
# style: italic
# - family: Trajan Pro
# fonts:
# - asset: fonts/TrajanPro.ttf
# - asset: fonts/TrajanPro_Bold.ttf
# weight: 700
#
# For details regarding fonts from package dependencies,
# see https://flutter.dev/to/font-from-package
uses-material-design: true