feat(auth): add google, facebook, apple, twitter login

2022-05-04 22:50:07 +02:00
parent 74db784973
commit 12f9cf6aa5
15 changed files with 393 additions and 18 deletions
@@ -0,0 +1,39 @@
+// Copyright (C) 2022 WYATT GROUP
+// Please see the AUTHORS file for details.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+import 'dart:convert';
+import 'dart:math';
+
+import 'package:crypto/crypto.dart';
+
+class Cryptography {
+  /// Generates a cryptographically secure random nonce, to be included in a
+  /// credential request.
+  static String generateNonce([int length = 32]) {
+    const charset =
+        '0123456789ABCDEFGHIJKLMNOPQRSTUVXYZabcdefghijklmnopqrstuvwxyz-._';
+    final random = Random.secure();
+    return List.generate(length, (_) => charset[random.nextInt(charset.length)])
+        .join();
+  }
+
+  /// Returns the sha256 hash of [input] in hex notation.
+  static String sha256ofString(String input) {
+    final bytes = utf8.encode(input);
+    final digest = sha256.convert(bytes);
+    return digest.toString();
+  }
+}