Allow to upload files to attachments by passing a base64 encoded file

src/ApiPlatform/HandleAttachmentsUploadsProcessor.php

@@ -0,0 +1,69 @@
+<?php
+/*
+ * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
+ *
+ *  Copyright (C) 2019 - 2024 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\ApiPlatform;
+
+use ApiPlatform\Metadata\DeleteOperationInterface;
+use ApiPlatform\Metadata\Operation;
+use ApiPlatform\State\ProcessorInterface;
+use App\Entity\Attachments\Attachment;
+use App\Services\Attachments\AttachmentSubmitHandler;
+use Symfony\Component\DependencyInjection\Attribute\Autowire;
+
+/**
+ * This state processor handles the upload property set on the deserialized attachment entity and
+ * calls the upload handler service to handle the upload.
+ */
+final class HandleAttachmentsUploadsProcessor implements ProcessorInterface
+{
+    public function __construct(
+        #[Autowire(service: 'api_platform.doctrine.orm.state.persist_processor')]
+        private readonly ProcessorInterface $persistProcessor,
+        #[Autowire(service: 'api_platform.doctrine.orm.state.remove_processor')]
+        private readonly ProcessorInterface $removeProcessor,
+        private readonly AttachmentSubmitHandler $attachmentSubmitHandler
+    ) {
+
+    }
+
+    public function process(mixed $data, Operation $operation, array $uriVariables = [], array $context = [])
+    {
+        if ($operation instanceof DeleteOperationInterface) {
+            return $this->removeProcessor->process($data, $operation, $uriVariables, $context);
+        }
+
+        //Check if the attachment has any upload data we need to handle
+        //This have to happen before the persist processor is called, because the changes on the entity must be saved!
+        if ($data instanceof Attachment && $data->getUpload()) {
+            $upload = $data->getUpload();
+            //Reset the upload data
+            $data->setUpload(null);
+
+            $this->attachmentSubmitHandler->handleFormSubmit($data, $upload);
+        }
+
+        $result = $this->persistProcessor->process($data, $operation, $uriVariables, $context);
+
+        return $result;
+    }
+}