From 18df9894204048c670cbf934024b0530215af598 Mon Sep 17 00:00:00 2001
From: Ottermandias <nickroederspam+git1@gmail.com>
Date: Wed, 17 Aug 2022 23:00:28 +0200
Subject: [PATCH] Check folder names for '.' and '..'

---
 Penumbra/Mods/Mod.Creation.cs | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/Penumbra/Mods/Mod.Creation.cs b/Penumbra/Mods/Mod.Creation.cs
index abe11f25..d9c64cc1 100644
--- a/Penumbra/Mods/Mod.Creation.cs
+++ b/Penumbra/Mods/Mod.Creation.cs
@@ -97,7 +97,7 @@ public partial class Mod
            .Select( f => ( Utf8GamePath.FromFile( f, optionFolder, out var gamePath, true ), gamePath, new FullPath( f ) ) )
            .Where( t => t.Item1 );
 
-        var mod = new SubMod(null!) // Mod is irrelevant here, only used for saving.
+        var mod = new SubMod( null! ) // Mod is irrelevant here, only used for saving.
         {
             Name = option.Name,
         };
@@ -112,7 +112,7 @@ public partial class Mod
 
     // Create an empty sub mod for single groups with None options.
     internal static ISubMod CreateEmptySubMod( string name )
-        => new SubMod(null! ) // Mod is irrelevant here, only used for saving.
+        => new SubMod( null! ) // Mod is irrelevant here, only used for saving.
         {
             Name = name,
         };
@@ -144,6 +144,16 @@ public partial class Mod
     // and the path must obviously be valid itself.
     public static string ReplaceBadXivSymbols( string s, string replacement = "_" )
     {
+        if( s == "." )
+        {
+            return replacement;
+        }
+
+        if( s == ".." )
+        {
+            return replacement + replacement;
+        }
+
         StringBuilder sb = new(s.Length);
         foreach( var c in s )
         {