From a1e9b00d2d973795b4fa5599876fc2669a66f176 Mon Sep 17 00:00:00 2001
From: Roger Versluis <roger.versluis@fieldcap.ca>
Date: Sat, 2 Sep 2023 16:04:51 -0600
Subject: [PATCH] Remove illegal characters from the download path.

---
 server/RdtClient.Service/Helpers/DownloadHelper.cs | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/server/RdtClient.Service/Helpers/DownloadHelper.cs b/server/RdtClient.Service/Helpers/DownloadHelper.cs
index a027180..e894126 100644
--- a/server/RdtClient.Service/Helpers/DownloadHelper.cs
+++ b/server/RdtClient.Service/Helpers/DownloadHelper.cs
@@ -14,8 +14,10 @@ public static class DownloadHelper
             return null;
         }
 
+        var directory = RemoveInvalidChars(torrent.RdName);
+
         var uri = new Uri(fileUrl);
-        var torrentPath = Path.Combine(downloadPath, torrent.RdName);
+        var torrentPath = Path.Combine(downloadPath, directory);
 
         if (!Directory.Exists(torrentPath))
         {
@@ -26,8 +28,15 @@ public static class DownloadHelper
 
         fileName = HttpUtility.UrlDecode(fileName);
 
+        fileName = RemoveInvalidChars(fileName);
+
         var filePath = Path.Combine(torrentPath, fileName);
 
         return filePath;
     }
+
+    private static String RemoveInvalidChars(String filename)
+    {
+        return String.Concat(filename.Split(Path.GetInvalidFileNameChars()));
+    }
 }
\ No newline at end of file