oauth2_custom_uri_scheme 0.4.7

An implementation of OAuth 2.0 authorization code grant with redirection to application specific custom URL scheme.

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:oauth2_custom_uri_scheme/oauth2_custom_uri_scheme.dart';
import 'package:oauth2_custom_uri_scheme/oauth2_token_holder.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Simple OAuth Sample',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key}) : super(key: key);

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

final oauth2Config = OAuth2Config(
  uniqueId: 'azuread-common', // NOTE: ID to identify the credential save
  authorizationEndpoint: Uri.parse('https://login.microsoftonline.com/common/oauth2/v2.0/authorize'),
tokenEndpoint: Uri.parse('https://login.microsoftonline.com/common/oauth2/v2.0/token'),
  // revocationEndpoint is optional
  revocationEndpoint: Uri.parse('https://example.com/revoke'),
  // NOTE: For Android, we also have corresponding intent-filter entry on example/android/app/src/main/AndroidManifest.xml
  redirectUri: Uri.parse('com.example.redirect43763246328://callback'),
  clientId: 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx',
  clientSecret: 'yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy',
  scope: 'user.read',
  useBasicAuth: false);

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Simple Azure AD OAuth2.0 Example'),
      ),
      body: Center(
        child: OAuth2TokenHolder(
          config: oauth2Config,
          builder: (context, accessToken, state, authorize, deauthorize, child) => ListTile(title: RaisedButton(
            onPressed:() => accessToken == null ? authorize() : deauthroizeConfirm(deauthorize),
            child: state == OAuth2TokenAvailability.Authorizing
            ? const CircularProgressIndicator()
            : Text(accessToken == null ? 'Authorize' : 'Deauthorize'))
          )
        )
      )
    );
  }

  /// NOTE: it's your app's responsibility to interact with the user; the deauthorize function does not interact with him/her.
  Future<bool> deauthroizeConfirm(void deauthorize()) async {
    final ret = await showDialog<bool>(
      context: context,
      builder: (context) => AlertDialog(
        title: Text('Deauthorize App'),
        content: Text('Do you really want to deauthorize the app?'),
        actions: <Widget>[
          FlatButton(child: Text("Cancel"), onPressed: () => Navigator.of(context).pop(false)),
          FlatButton(child: Text("Deauthorize"), onPressed: () => Navigator.of(context).pop(true))
        ]
      )
    );
    if (ret) {
      deauthorize();
    }
    return ret;
  }
}