130 lines
3.4 KiB
Dart
130 lines
3.4 KiB
Dart
import 'dart:async';
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import 'dart:convert';
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import 'package:flutter/material.dart';
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import 'package:flutter_secure_storage/flutter_secure_storage.dart';
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import 'package:get/get.dart';
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import 'package:get/get_connect/http/src/request/request.dart';
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import 'package:solian/providers/account.dart';
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import 'package:solian/services.dart';
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import 'package:oauth2/oauth2.dart' as oauth2;
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class AuthProvider extends GetConnect {
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final tokenEndpoint =
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Uri.parse('${ServiceFinder.services['passport']}/api/auth/token');
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static const clientId = 'solian';
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static const clientSecret = '_F4%q2Eea3';
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static const storage = FlutterSecureStorage();
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@override
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void onInit() {
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httpClient.baseUrl = ServiceFinder.services['passport'];
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loadCredentials();
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}
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oauth2.Credentials? credentials;
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Future<void> refreshCredentials() async {
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final resp = await post('/api/auth/token', {
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'refresh_token': credentials!.refreshToken,
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'grant_type': 'refresh_token',
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});
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if (resp.statusCode != 200) {
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throw Exception(resp.bodyString);
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}
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credentials = oauth2.Credentials(
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resp.body['access_token'],
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refreshToken: resp.body['refresh_token'],
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idToken: resp.body['access_token'],
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tokenEndpoint: tokenEndpoint,
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expiration: DateTime.now().add(const Duration(minutes: 3)),
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);
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storage.write(
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key: 'auth_credentials',
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value: jsonEncode(credentials!.toJson()),
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);
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}
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Future<Request<T?>> requestAuthenticator<T>(Request<T?> request) async {
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if (credentials != null && credentials!.isExpired) {
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refreshCredentials();
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}
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if (credentials != null) {
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request.headers['Authorization'] = 'Bearer ${credentials!.accessToken}';
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}
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return request;
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}
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Future<void> loadCredentials() async {
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if (await isAuthorized) {
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final content = await storage.read(key: 'auth_credentials');
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credentials = oauth2.Credentials.fromJson(jsonDecode(content!));
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}
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}
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Future<oauth2.Credentials> signin(
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BuildContext context,
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String username,
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String password,
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) async {
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_cacheUserProfileResponse = null;
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final resp = await oauth2.resourceOwnerPasswordGrant(
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tokenEndpoint,
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username,
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password,
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identifier: clientId,
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secret: clientSecret,
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scopes: ['*'],
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basicAuth: false,
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);
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credentials = oauth2.Credentials(
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resp.credentials.accessToken,
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refreshToken: resp.credentials.refreshToken!,
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idToken: resp.credentials.accessToken,
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tokenEndpoint: tokenEndpoint,
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expiration: DateTime.now().add(const Duration(minutes: 3)),
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);
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storage.write(
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key: 'auth_credentials',
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value: jsonEncode(credentials!.toJson()),
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);
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Get.find<AccountProvider>().connect();
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return credentials!;
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}
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void signout() {
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_cacheUserProfileResponse = null;
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Get.find<AccountProvider>().disconnect();
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storage.deleteAll();
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}
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Response? _cacheUserProfileResponse;
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Future<bool> get isAuthorized => storage.containsKey(key: 'auth_credentials');
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Future<Response> getProfile({noCache = false}) async {
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if (!noCache && _cacheUserProfileResponse != null) {
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return _cacheUserProfileResponse!;
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}
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final client = GetConnect();
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client.httpClient.baseUrl = ServiceFinder.services['passport'];
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client.httpClient.addAuthenticator(requestAuthenticator);
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final resp = await client.get('/api/users/me');
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_cacheUserProfileResponse = resp;
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return resp;
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}
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}
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