From fb38a20465e3a6ae8413a4d30152261131ad814d Mon Sep 17 00:00:00 2001
From: Jonas Herzig <me@johni0702.de>
Date: Sun, 10 Apr 2022 13:49:32 +0200
Subject: [PATCH] Fix path separator in replay name

Would probably have been caught by the write check as well, except in the
specific case where the folder exists, e.g. `../`
---
 src/main/java/com/replaymod/core/utils/Utils.java | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/main/java/com/replaymod/core/utils/Utils.java b/src/main/java/com/replaymod/core/utils/Utils.java
index 39634262..1b518534 100644
--- a/src/main/java/com/replaymod/core/utils/Utils.java
+++ b/src/main/java/com/replaymod/core/utils/Utils.java
@@ -186,6 +186,10 @@ public class Utils {
      * Checks whether a given file name is actually usable with the file system / operating system at the given folder.
      */
     private static boolean isUsable(Path folder, String fileName) {
+        if (fileName.contains(folder.getFileSystem().getSeparator())) {
+            return false; // file name contains the name separator, definitely not usable
+        }
+
         Path path;
         try {
             path = folder.resolve(fileName);