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...b/cloud_storage/google_drive/google_sign_in/platform/google_sign_in_platform_windows.dart
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| import 'dart:convert'; | ||
| import 'dart:io'; | ||
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| import 'package:flutter/material.dart'; | ||
| import 'package:flutter_secure_storage/flutter_secure_storage.dart'; | ||
| import 'package:flutter_web_auth_2/flutter_web_auth_2.dart'; | ||
| import 'package:google_sign_in_platform_interface/google_sign_in_platform_interface.dart'; | ||
| import 'package:http/http.dart' as http; | ||
| import 'package:rxdart/rxdart.dart'; | ||
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| class GoogleSignInPlatformWindow extends GoogleSignInPlatform { | ||
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| static const String storageKey = 'GOOGLE_SIGN_IN_AUTH'; // NON-NLS | ||
| GoogleSignInPlatformWindow({required this.secret}); | ||
| FlutterSecureStorage storage = const FlutterSecureStorage(); | ||
| Uri? url; | ||
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| Uri? callbackUrlScheme; | ||
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| SignInInitParameters? params; | ||
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| BehaviorSubject<GoogleSignInUserData> userData = BehaviorSubject(); | ||
| String secret; | ||
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| Map<String, GoogleSignInTokenData> tokens = Map(); | ||
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| @override | ||
| Future<bool> canAccessScopes(List<String> scopes, {String? accessToken}) async{ | ||
| return true; | ||
| } | ||
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| @override | ||
| Future<void> clearAuthCache({required String token}) async{ | ||
| return storage.delete(key: storageKey); | ||
| } | ||
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| @override | ||
| Future<void> disconnect() async{ | ||
| return; | ||
| } | ||
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| @override | ||
| Future<GoogleSignInTokenData> getTokens({required String email, bool? shouldRecoverAuth}) async { | ||
| return tokens[email]!; | ||
| } | ||
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| @override | ||
| Future<void> init({List<String> scopes = const <String>[], SignInOption signInOption = SignInOption.standard, String? hostedDomain, String? clientId}) async{ | ||
| return initWithParams(SignInInitParameters( | ||
| signInOption: signInOption, | ||
| scopes: scopes, | ||
| hostedDomain: hostedDomain, | ||
| clientId: clientId, | ||
| )); | ||
| } | ||
| Future<int> getUnusedPort(InternetAddress address) { | ||
| return ServerSocket.bind(address, 0).then((socket) { | ||
| var port = socket.port; | ||
| socket.close(); | ||
| return port; | ||
| }); | ||
| } | ||
| @override | ||
| Future<void> initWithParams(SignInInitParameters params) async { | ||
| try { | ||
| if (await storage.containsKey(key: storageKey)) { | ||
| var mailStorage = await storage.read(key: storageKey); | ||
| var mails = jsonDecode(mailStorage!); | ||
| final List<dynamic> mailList = mails as List<dynamic>; | ||
| for (final mail in mailList) { | ||
| tokens[mail as String] = GoogleSignInTokenData(accessToken: await storage.read( | ||
| key: '$storageKey.$mail.accessToken'),// NON-NLS | ||
| // NON-NLS | ||
| idToken: await storage.read(key: '$storageKey.$mail.idToken'), // NON-NLS | ||
| // NON-NLS | ||
| serverAuthCode: await storage.read( | ||
| key: '$storageKey.$mail.serverAuthCode')); // NON-NLS | ||
| } | ||
| } | ||
| }catch(ex){ | ||
| //ignore | ||
| } | ||
| final freePort = await getUnusedPort(InternetAddress.anyIPv4); | ||
| callbackUrlScheme = Uri(scheme: 'http', host: 'localhost', port: freePort); | ||
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| url = Uri.https('accounts.google.com', '/o/oauth2/v2/auth', { | ||
| 'response_type': 'code', | ||
| 'client_id': params.clientId, | ||
| 'redirect_uri': callbackUrlScheme.toString(), | ||
| 'scope': '${params.scopes.join(' ')} https://www.googleapis.com/auth/userinfo.email', | ||
| }); | ||
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| this.params = params; | ||
| } | ||
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| @override | ||
| bool get isMock => false; | ||
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| @override | ||
| Future<bool> isSignedIn() async{ | ||
| return tokens.isNotEmpty; | ||
| } | ||
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| @override | ||
| Future<bool> requestScopes(List<String> scopes) async { | ||
| return true; | ||
| } | ||
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| @override | ||
| Future<GoogleSignInUserData?> signIn() async { | ||
| if(url == null | ||
| || callbackUrlScheme == null | ||
| || params == null){ | ||
| throw Exception('call init first'); | ||
| } | ||
| final result = await FlutterWebAuth2.authenticate(url: url.toString(), callbackUrlScheme: callbackUrlScheme.toString()); | ||
| final code = Uri.parse(result).queryParameters['code']; // NON-NLS | ||
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| // Construct an Uri to Google's oauth2 endpoint | ||
| final tokenUrl = Uri.https('www.googleapis.com', 'oauth2/v4/token'); // NON-NLS | ||
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| // Use this code to get an access token | ||
| final response = await http.post(tokenUrl, body: { | ||
| 'client_id': params!.clientId,// NON-NLS | ||
| 'client_secret': secret,// NON-NLS | ||
| 'redirect_uri': callbackUrlScheme.toString(),// NON-NLS | ||
| 'grant_type': 'authorization_code',// NON-NLS | ||
| 'code': code,// NON-NLS | ||
| }); | ||
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| // Get the access token from the response | ||
| final json = jsonDecode(response.body); | ||
| final accessToken = json['access_token'] as String;// NON-NLS | ||
| final id = json['id_token'] as String;// NON-NLS | ||
| //https://openidconnect.googleapis.com/v1/userinfo | ||
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| final userInfoUrl = Uri.https('openidconnect.googleapis.com', 'v1/userinfo', { | ||
| 'access_token' : accessToken | ||
| }); | ||
| final userresp = await http.post(userInfoUrl); | ||
| final userInfo = jsonDecode(userresp.body); | ||
| final email = userInfo['email'] as String;// NON-NLS | ||
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| tokens[email] = GoogleSignInTokenData(accessToken: accessToken, serverAuthCode: code); | ||
| await writeStorage(); | ||
| var luserData = GoogleSignInUserData(email: email, id: UniqueKey().toString(), displayName: email, idToken: id, serverAuthCode: code); | ||
| userData.add(luserData); | ||
| return luserData; | ||
| } | ||
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| @override | ||
| Future<GoogleSignInUserData?> signInSilently() async { | ||
| var email = tokens.keys.firstOrNull; | ||
| if(email != null){ | ||
| return GoogleSignInUserData(email: email, id: UniqueKey().toString(), displayName: email, idToken: tokens[email]!.idToken, serverAuthCode: tokens[email]!.serverAuthCode); | ||
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| }else{ | ||
| return null; | ||
| } | ||
| } | ||
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| @override | ||
| Future<void> signOut() async{ | ||
| tokens.clear(); | ||
| await writeStorage(); | ||
| } | ||
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| Future<void> writeStorage() async { | ||
| await storage.write(key: storageKey, value: jsonEncode(List.from(tokens.keys))); | ||
| tokens.forEach((key, value) async { | ||
| await storage.write(key: '$storageKey.$key.accessToken', value: value.accessToken); // NON-NLS | ||
| await storage.write(key: '$storageKey.$key.idToken', value: value.idToken); // NON-NLS | ||
| await storage.write(key: '$storageKey.$key.serverAuthCode', value: value.serverAuthCode); // NON-NLS | ||
| }); | ||
| } | ||
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| @override | ||
| Stream<GoogleSignInUserData?>? get userDataEvents => userData.stream; | ||
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| } |
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