restrict oauth access

src/Repository/OAuthClientRepository.php

@@ -0,0 +1,28 @@
+<?php namespace RVR\Repository;
+
+use SokoWeb\Database\Query\Select;
+use RVR\PersistentData\Model\OAuthClient;
+use SokoWeb\PersistentData\PersistentDataManager;
+
+class OAuthClientRepository
+{
+    private PersistentDataManager $pdm;
+
+    public function __construct()
+    {
+        $this->pdm = new PersistentDataManager();
+    }
+
+    public function getById(int $id): ?OAuthClient
+    {
+        return $this->pdm->selectFromDbById($id, OAuthClient::class);
+    }
+
+    public function getByClientId(string $clientId): ?OAuthClient
+    {
+        $select = new Select(\Container::$dbConnection);
+        $select->where('client_id', '=', $clientId);
+
+        return $this->pdm->selectFromDb($select, OAuthClient::class);
+    }
+}