1 files changed, 50 insertions, 0 deletions
diff --git a/lib/private/Preview/Image.php b/lib/private/Preview/Image.php
new file mode 100644
index 00000000000..78a402c636a
--- /dev/null
+++ b/lib/private/Preview/Image.php
@@ -0,0 +1,50 @@
+<?php
+
+/**
+ * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+namespace OC\Preview;
+
+use OCP\Files\File;
+use OCP\IImage;
+use OCP\Server;
+use Psr\Log\LoggerInterface;
+
+abstract class Image extends ProviderV2 {
+	/**
+	 * {@inheritDoc}
+	 */
+	public function getThumbnail(File $file, int $maxX, int $maxY): ?IImage {
+		$maxSizeForImages = \OC::$server->getConfig()->getSystemValueInt('preview_max_filesize_image', 50);
+		$size = $file->getSize();
+
+		if ($maxSizeForImages !== -1 && $size > ($maxSizeForImages * 1024 * 1024)) {
+			return null;
+		}
+
+		$image = new \OCP\Image();
+
+		$fileName = $this->getLocalFile($file);
+		if ($fileName === false) {
+			Server::get(LoggerInterface::class)->error(
+				'Failed to get local file to generate thumbnail for: ' . $file->getPath(),
+				['app' => 'core']
+			);
+			return null;
+		}
+
+		$image->loadFromFile($fileName);
+		$image->fixOrientation();
+
+		$this->cleanTmpFiles();
+
+		if ($image->valid()) {
+			$image->scaleDownToFit($maxX, $maxY);
+
+			return $image;
+		}
+		return null;
+	}
+}