[5.4] Preventing notices for broken images (joomla#46435)

Author: Hackwar

libraries/src/Helper/MediaHelper.php

@@ -89,9 +89,9 @@ public static function getMimeType($file, $isImage = false)
         $mime = false;
 
         try {
-            if ($isImage && \function_exists('exif_imagetype')) {
+            if ($isImage && \function_exists('exif_imagetype') && filesize($file) > 12) {
                 $mime = image_type_to_mime_type(exif_imagetype($file));
-            } elseif ($isImage && \function_exists('getimagesize')) {
+            } elseif ($isImage && \function_exists('getimagesize') && filesize($file) > 12) {
                 $imagesize = getimagesize($file);
                 $mime      = $imagesize['mime'] ?? false;
             } elseif (\function_exists('mime_content_type')) {

libraries/src/Image/Image.php

@@ -174,7 +174,7 @@ public static function getImageFileProperties($path)
         }
 
         // Get the image file information.
-        $info = getimagesize($path);
+        $info = @getimagesize($path);
 
         if (!$info) {
             throw new Exception\UnparsableImageException('Unable to get properties for the image.');