From a3f3fc61ee0ffa0c983b20433c7522cd1e00ac67 Mon Sep 17 00:00:00 2001
From: fhuber <florian.huber@noris.de>
Date: Wed, 7 May 2025 15:35:41 +0200
Subject: [PATCH] cmd serve s3: fix ListObjectsV2 response

add trailing slash to s3 ListObjectsV2 response because some clients expect a trailing forward slash to distinguish if the returned object is a directory

Fixes #8464
---
 cmd/serve/s3/list.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/cmd/serve/s3/list.go b/cmd/serve/s3/list.go
index f58e95a87..559fa14a4 100644
--- a/cmd/serve/s3/list.go
+++ b/cmd/serve/s3/list.go
@@ -28,7 +28,8 @@ func (b *s3Backend) entryListR(_vfs *vfs.VFS, bucket, fdPath, name string, addPr
 
 		if entry.IsDir() {
 			if addPrefix {
-				response.AddPrefix(objectPath)
+				prefixWithTrailingSlash := objectPath + "/"
+				response.AddPrefix(prefixWithTrailingSlash)
 				continue
 			}
 			err := b.entryListR(_vfs, bucket, path.Join(fdPath, object), "", false, response)