From 00dc9f5dcc87be710b10232a101d4043a5c8f3e0 Mon Sep 17 00:00:00 2001
From: ilike2burnthing <59480337+ilike2burnthing@users.noreply.github.com>
Date: Fri, 21 Oct 2022 16:32:21 +0100
Subject: [PATCH] rutracker: no regex replace when SearchTerm is null. #13660
 (#13664)

fix for https://github.com/Jackett/Jackett/pull/13661#issuecomment-1286567697
---
 src/Jackett.Common/Indexers/RuTracker.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Jackett.Common/Indexers/RuTracker.cs b/src/Jackett.Common/Indexers/RuTracker.cs
index cfd8f0c8f..b169731d0 100644
--- a/src/Jackett.Common/Indexers/RuTracker.cs
+++ b/src/Jackett.Common/Indexers/RuTracker.cs
@@ -1484,7 +1484,8 @@ namespace Jackett.Common.Indexers
             var searchString = query.SearchTerm;
             //  replace any space, special char, etc. with % (wildcard)
             var ReplaceRegex = new Regex("[^a-zA-Zа-яА-Я0-9]+");
-            searchString = ReplaceRegex.Replace(searchString, "%");
+            if (!string.IsNullOrWhiteSpace(searchString))
+                searchString = ReplaceRegex.Replace(searchString, "%");
 
             // if the search string is empty use the getnew view
             if (string.IsNullOrWhiteSpace(searchString))