API authentication

lib/main.dart

@@ -1,6 +1,10 @@
 import 'package:flutter/material.dart';
+import 'package:gitea_client/model/user.dart';
+import 'package:gitea_client/service/AuthenticationChecker.dart';
 import 'package:url_launcher/url_launcher.dart';
 
+import 'model/ApiAccess.dart';
+
 void main() {
   runApp(const MyApp());
 }
@@ -17,6 +21,22 @@ class MyApp extends StatelessWidget {
         primarySwatch: Colors.lightGreen,
       ),
       home: const LoginPage(title: 'Gitea client'),
+      routes: {
+
+      },
+      onGenerateRoute: (route) {
+        switch (route.name) { // <- here
+          case "/loginstatus":
+            return MaterialPageRoute(
+              settings: const RouteSettings(name: "/parameterpage"),
+              builder: (context) => StatefulLoginStatus(
+                apiAccess: route.arguments as ApiAccess,
+              ),
+            );
+        }
+        return null;
+      },
+
     );
   }
 }
@@ -60,7 +80,8 @@ class StatefulLoginForm extends StatefulWidget {
 }
 
 class _LoginForm extends State<StatefulLoginForm> {
-  final Uri getTokenUri = Uri.parse("https://www.jetbrains.com/help/youtrack/incloud/integration-with-gitea.html#enable-youtrack-integration-gitea");
+  final Uri getTokenUri = Uri.parse(
+      "https://www.jetbrains.com/help/youtrack/incloud/integration-with-gitea.html#enable-youtrack-integration-gitea");
   final tokenController = TextEditingController();
   final instanceController = TextEditingController();
   String instance = "gitea.com";
@@ -76,7 +97,7 @@ class _LoginForm extends State<StatefulLoginForm> {
         children: [
           DropdownButton(
               value: instance,
-              items: <String>['gitea.com', 'codeberg.com', 'Other']
+              items: <String>['gitea.com', 'codeberg.org', 'Other']
                   .map<DropdownMenuItem<String>>((String value) {
                 return DropdownMenuItem<String>(
                   value: value,
@@ -105,26 +126,89 @@ class _LoginForm extends State<StatefulLoginForm> {
             obscureText: true,
           ),
           SizedBox(
-            width: (media.width > 600) ? media.width * 0.25 : media.width * 0.5,
+              width:
+                  (media.width > 600) ? media.width * 0.25 : media.width * 0.5,
               child: Container(
                 padding: EdgeInsetsDirectional.all(15),
                 child: ElevatedButton(
                   child: const Text("Login"),
                   onPressed: () => {
-
+                    Navigator.pushNamed(context, "/loginstatus",
+                        arguments: ApiAccess(
+                            (instance == "Other")
+                                ? instanceController.text
+                                : instance,
+                            tokenController.text))
                   },
                 ),
               )),
           //
-          TextButton(onPressed: () => {
-            _launchUrl(getTokenUri)
-          }, child: Text("Need a Token? Find out how to generate one!"))
+          TextButton(
+              onPressed: () => {_launchUrl(getTokenUri)},
+              child: Text("Need a Token? Find out how to generate one!"))
         ],
       ),
     );
   }
 }
 
+class StatefulLoginStatus extends StatefulWidget {
+  final ApiAccess apiAccess;
+  const StatefulLoginStatus({Key? key, required this.apiAccess}) : super(key: key);
+
+  @override
+  _StatefulLoginStatus createState() => _StatefulLoginStatus();
+}
+
+class _StatefulLoginStatus extends State<StatefulLoginStatus> {
+
+
+  Future<AuthenticatedUser>? userRequest;
+
+  @override
+  void initState() {
+    userRequest = AuthenticationChecker(widget.apiAccess).getAuthenticatedUserOrError();
+    super.initState();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+        appBar: AppBar(
+          title: const Text("Login status"),
+        ),
+        body: Center(
+          child: Column(
+            mainAxisAlignment: MainAxisAlignment.center,
+            crossAxisAlignment: CrossAxisAlignment.center,
+            children:  [
+              FutureBuilder<AuthenticatedUser>(
+                  future: userRequest,
+                  builder: (context, snapshot) {
+                    if (snapshot.hasError){
+                      return Center(
+                        child: Text(
+                            "Hiba történt: ${snapshot.error}"
+                        ),
+                      );
+                    } else if (snapshot.hasData){
+                      var user = snapshot.data!;
+                      final username = user.username;
+                      return Text("Logged in as $username");
+
+                    } else {
+                      return Center(
+                        child: CircularProgressIndicator(),
+                      );
+                    }
+                  }
+              )
+            ],
+          ),
+        ));
+  }
+}
+
 void _launchUrl(Uri url) async {
   if (!await launchUrl(url)) throw 'Could not launch $url';
 }

lib/model/ApiAccess.dart

@@ -0,0 +1,6 @@
+class ApiAccess{
+  final String instance;
+  final String token;
+
+  const ApiAccess(this.instance, this.token);
+}

lib/model/user.dart

@@ -1,3 +1,5 @@
+import 'dart:convert';
+
 class AuthenticatedUser {
   int? id;
   String? login;

lib/service/AuthenticationChecker.dart

@@ -0,0 +1,21 @@
+import 'package:gitea_client/model/ApiAccess.dart';
+import 'package:gitea_client/service/gitea_service.dart';
+
+import '../model/user.dart';
+
+class AuthenticationChecker {
+  final ApiAccess apiAccess;
+  late  GiteaServie service;
+  AuthenticationChecker(this.apiAccess) {
+     service = GiteaServie(apiAccess.instance, apiAccess.token);
+  }
+
+  Future<AuthenticatedUser> getAuthenticatedUserOrError() async{
+    final user = await service.getAuthenticatedUser();
+    if(user.username != null) {
+      return user;
+    }
+    throw Exception("Authentication failed");
+  }
+
+}

lib/service/gitea_service.dart

@@ -0,0 +1,25 @@
+import 'dart:convert';
+
+import 'package:flutter/foundation.dart';
+import 'package:gitea_client/model/user.dart';
+import 'package:http/http.dart' as http;
+
+AuthenticatedUser _parseAuthenticatedUserResponse(String message){
+  return AuthenticatedUser.fromJson(jsonDecode(message));
+}
+
+class GiteaServie {
+  final String apiUrl;
+  final String _token;
+
+  const GiteaServie(this.apiUrl, this._token);
+
+  Future<AuthenticatedUser> getAuthenticatedUser() async {
+    var response = await http.get(
+      Uri.https(apiUrl, "api/v1/user", {
+        "token": _token,
+      }),
+    );
+    return compute(_parseAuthenticatedUserResponse, response.body);
+  }
+}

pubspec.lock

@@ -1,6 +1,27 @@
 # Generated by pub
 # See https://dart.dev/tools/pub/glossary#lockfile
 packages:
+  _fe_analyzer_shared:
+    dependency: transitive
+    description:
+      name: _fe_analyzer_shared
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "39.0.0"
+  analyzer:
+    dependency: transitive
+    description:
+      name: analyzer
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.0.0"
+  args:
+    dependency: transitive
+    description:
+      name: args
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.3.0"
   async:
     dependency: transitive
     description:
@@ -15,6 +36,20 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.0"
+  build:
+    dependency: transitive
+    description:
+      name: build
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.3.0"
+  build_config:
+    dependency: transitive
+    description:
+      name: build_config
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.0"
   characters:
     dependency: transitive
     description:
@@ -29,6 +64,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.3.1"
+  checked_yaml:
+    dependency: transitive
+    description:
+      name: checked_yaml
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.1"
   clock:
     dependency: transitive
     description:
@@ -43,6 +85,20 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.15.0"
+  convert:
+    dependency: transitive
+    description:
+      name: convert
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.1"
+  crypto:
+    dependency: transitive
+    description:
+      name: crypto
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.0.2"
   cupertino_icons:
     dependency: "direct main"
     description:
@@ -50,6 +106,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.4"
+  dart_style:
+    dependency: transitive
+    description:
+      name: dart_style
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.2.3"
   fake_async:
     dependency: transitive
     description:
@@ -57,6 +120,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.2.0"
+  file:
+    dependency: transitive
+    description:
+      name: file
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "6.1.2"
   flutter:
     dependency: "direct main"
     description: flutter
@@ -84,6 +154,27 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  glob:
+    dependency: transitive
+    description:
+      name: glob
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.2"
+  http:
+    dependency: "direct main"
+    description:
+      name: http
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.13.4"
+  http_parser:
+    dependency: transitive
+    description:
+      name: http_parser
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.0.0"
   intl:
     dependency: "direct main"
     description:
@@ -98,6 +189,20 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "0.6.3"
+  json_annotation:
+    dependency: transitive
+    description:
+      name: json_annotation
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "4.5.0"
+  json_serializable:
+    dependency: "direct dev"
+    description:
+      name: json_serializable
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "6.2.0"
   lints:
     dependency: transitive
     description:
@@ -105,6 +210,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.1"
+  logging:
+    dependency: transitive
+    description:
+      name: logging
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.2"
   matcher:
     dependency: transitive
     description:
@@ -126,6 +238,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.7.0"
+  package_config:
+    dependency: transitive
+    description:
+      name: package_config
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.2"
   path:
     dependency: transitive
     description:
@@ -140,11 +259,39 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.2"
+  pub_semver:
+    dependency: transitive
+    description:
+      name: pub_semver
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.1.1"
+  pubspec_parse:
+    dependency: transitive
+    description:
+      name: pubspec_parse
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.0"
   sky_engine:
     dependency: transitive
     description: flutter
     source: sdk
     version: "0.0.99"
+  source_gen:
+    dependency: transitive
+    description:
+      name: source_gen
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.2.2"
+  source_helper:
+    dependency: transitive
+    description:
+      name: source_helper
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.3.2"
   source_span:
     dependency: transitive
     description:
@@ -195,7 +342,7 @@ packages:
     source: hosted
     version: "1.3.0"
   url_launcher:
-    dependency: "direct dev"
+    dependency: "direct main"
     description:
       name: url_launcher
       url: "https://pub.dartlang.org"
@@ -257,6 +404,20 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.1.1"
+  watcher:
+    dependency: transitive
+    description:
+      name: watcher
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
+  yaml:
+    dependency: transitive
+    description:
+      name: yaml
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "3.1.0"
 sdks:
   dart: ">=2.16.2 <3.0.0"
   flutter: ">=2.10.0"

pubspec.yaml

@@ -32,8 +32,10 @@ dependencies:
   flutter_localizations:
     sdk: flutter
   intl: ^0.17.0
-
-
+  # For opening links in the browser
+  url_launcher: ^6.1.0
+  # For http communication
+  http: ^0.13.4
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^1.0.2
@@ -41,14 +43,14 @@ dependencies:
 dev_dependencies:
   flutter_test:
     sdk: flutter
-
+  json_serializable: ^6.2.0
   # 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: ^1.0.0
-  url_launcher: ^6.1.0
+
 # For information on the generic Dart part of this file, see the
 # following page: https://dart.dev/tools/pub/pubspec