Added proper OAuth authentication for digikey and other providers

src/Controller/OAuthClientController.php

@@ -0,0 +1,63 @@
+<?php
+/*
+ * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
+ *
+ *  Copyright (C) 2019 - 2023 Jan Böhmer (https://github.com/jbtronics)
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as published
+ *  by the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) 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 Affero General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+declare(strict_types=1);
+
+
+namespace App\Controller;
+
+use App\Services\OAuth\OAuthTokenManager;
+use KnpU\OAuth2ClientBundle\Client\ClientRegistry;
+use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Routing\Annotation\Route;
+
+use function Symfony\Component\Translation\t;
+
+#[Route('/oauth/client')]
+class OAuthClientController extends AbstractController
+{
+    public function __construct(private readonly ClientRegistry $clientRegistry, private readonly OAuthTokenManager $tokenManager)
+    {
+
+    }
+
+    #[Route('/{name}/connect', name: 'oauth_client_connect')]
+    public function connect(string $name): Response
+    {
+        return $this->clientRegistry
+            ->getClient($name) // key used in config/packages/knpu_oauth2_client.yaml
+            ->redirect();
+    }
+
+    #[Route('/{name}/check', name: 'oauth_client_check')]
+    public function check(string $name, Request $request): Response
+    {
+        $client = $this->clientRegistry->getClient($name);
+
+        $access_token = $client->getAccessToken();
+        $this->tokenManager->saveToken($name, $access_token);
+
+        $this->addFlash('success', t('oauth_client.flash.connection_successful'));
+
+        return $this->redirectToRoute('homepage');
+    }
+}