Move OAuth module from API to common and solve PHPStan's errors

common/components/OAuth2/CryptTrait.php

@@ -0,0 +1,33 @@
+<?php
+declare(strict_types=1);
+
+namespace common\components\OAuth2;
+
+use LogicException;
+use RangeException;
+use SodiumException;
+use Yii;
+
+/**
+ * This trait is intended to override the standard data encryption behavior
+ * with the help of \Defuse\Crypto\Crypto class, because the resultant string
+ * is much larger than the original one.
+ *
+ * The implementation under the hood relies on using libsodium library
+ * that provides more compact result values.
+ */
+trait CryptTrait {
+
+    protected function encrypt(string $unencryptedData): string {
+        return Yii::$app->tokens->encryptValue($unencryptedData);
+    }
+
+    protected function decrypt(string $encryptedData): string {
+        try {
+            return Yii::$app->tokens->decryptValue($encryptedData);
+        } catch (SodiumException|RangeException $e) {
+            throw new LogicException($e->getMessage(), 0, $e);
+        }
+    }
+
+}