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application/Espo/Tools/Attachment/Api/GetFile.php

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+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2025 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * 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/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Tools\Attachment\Api;
+
+use Espo\Core\Api\Action as ActionAlias;
+use Espo\Core\Api\Request;
+use Espo\Core\Api\Response;
+use Espo\Core\Api\ResponseComposer;
+use Espo\Core\Exceptions\BadRequest;
+use Espo\Tools\Attachment\Service;
+
+/**
+ * Download a file.
+ */
+class GetFile implements ActionAlias
+{
+    public function __construct(private Service $service) {}
+
+    public function process(Request $request): Response
+    {
+        $id = $request->getRouteParam('id');
+
+        if (!$id) {
+            throw new BadRequest();
+        }
+
+        $fileData = $this->service->getFileData($id);
+
+        $response = ResponseComposer::empty()
+            ->setHeader('Content-Disposition', 'attachment; filename="' . $fileData->getName() . '"')
+            ->setHeader('Content-Length', (string) $fileData->getSize())
+            ->setBody($fileData->getStream());
+
+        if ($fileData->getType()) {
+            $response->setHeader('Content-Type', $fileData->getType());
+        }
+
+        return $response;
+    }
+}