Add check for EXIF data existence in Object/Image

- Addresses https://github.com/friendica/friendica/issues/6338#issuecomment-467121955

diff --git a/src/Object/Image.php b/src/Object/Image.php
index 45c8bedeaf58397abe15b1b7684a009156f63cad..66be78ad469a02e4aef3a1c6e31aff3667180cf4 100644 (file)
--- a/src/Object/Image.php
+++ b/src/Object/Image.php
@@ -447,7 +447,7 @@ class Image
                        return;
                }
 
-               $ort = $exif['IFD0']['Orientation'];
+               $ort = isset($exif['IFD0']['Orientation']) ? $exif['IFD0']['Orientation'] : 1;
 
                switch ($ort) {
                        case 1: // nothing