From 15946417d63c5212ea38c1b70165a5b93c4f1058 Mon Sep 17 00:00:00 2001
From: Zankaria <zankaria.auxa@mailu.io>
Date: Fri, 21 Mar 2025 01:39:18 +0100
Subject: [PATCH] JpgExifReader.php: add jpg exif reader

---
 inc/Data/Driver/Metadata/JpgExifReader.php | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 inc/Data/Driver/Metadata/JpgExifReader.php

diff --git a/inc/Data/Driver/Metadata/JpgExifReader.php b/inc/Data/Driver/Metadata/JpgExifReader.php
new file mode 100644
index 00000000..c5857147
--- /dev/null
+++ b/inc/Data/Driver/Metadata/JpgExifReader.php
@@ -0,0 +1,18 @@
+<?php
+namespace Vichan\Data\Driver;
+
+
+class JpgExifReader implements ExifReader {
+	public function getOrientation(string $file): ?int {
+		$ret = \exif_read_data($file);
+		if ($ret === false && !empty($ret['Orientation']) && \is_numeric($ret['Orientation'])) {
+			return null;
+		}
+		$value = \intval($ret['Orientation'], 10);
+		if ($value < 1 || $value > 9) {
+			return null;
+		} else {
+			return $value;
+		}
+	}
+}