From 579da242213c7a5331620fc3934e7443beb9c056 Mon Sep 17 00:00:00 2001
From: Paul Hebble <pjhebble@gmail.com>
Date: Sat, 27 Apr 2019 19:11:55 +0000
Subject: [PATCH] Fix freeze on non CKAN files in cache folder

---
 Core/Net/NetFileCache.cs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Core/Net/NetFileCache.cs b/Core/Net/NetFileCache.cs
index de9bb203a5..d84a0d1da3 100644
--- a/Core/Net/NetFileCache.cs
+++ b/Core/Net/NetFileCache.cs
@@ -30,6 +30,7 @@ public class NetFileCache : IDisposable
         private Dictionary<string, string> cachedFiles;
         private string cachePath;
         private KSPManager manager;
+        private static readonly Regex cacheFileRegex = new Regex("^[0-9A-F]{8}-", RegexOptions.Compiled);
         private static readonly ILog log = LogManager.GetLogger(typeof (NetFileCache));
 
         /// <summary>
@@ -377,7 +378,10 @@ private List<FileInfo> allFiles()
                 DirectoryInfo legDir = new DirectoryInfo(legacyDir);
                 files = files.Union(legDir.EnumerateFiles());
             }
-            return files.ToList();
+            return files
+                // Require 8 digit hex prefix followed by dash; any else was not put there by CKAN
+                .Where(fi => cacheFileRegex.IsMatch(fi.Name))
+                .ToList();
         }
 
         /// <summary>