From ecb615ecf10b4e21e04586a44edaf040a4333580 Mon Sep 17 00:00:00 2001
From: Tomlacko <72975448+Tomlacko@users.noreply.github.com>
Date: Fri, 18 Feb 2022 04:58:47 +0100
Subject: [PATCH] Fix for extremely long file extensions (#812)

---
 DiscordChatExporter.Core/Exporting/MediaDownloader.cs | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/DiscordChatExporter.Core/Exporting/MediaDownloader.cs b/DiscordChatExporter.Core/Exporting/MediaDownloader.cs
index 4765de5..946e227 100644
--- a/DiscordChatExporter.Core/Exporting/MediaDownloader.cs
+++ b/DiscordChatExporter.Core/Exporting/MediaDownloader.cs
@@ -103,7 +103,15 @@ internal partial class MediaDownloader
         // Otherwise, use the original file name but inject the hash in the middle
         var fileNameWithoutExtension = Path.GetFileNameWithoutExtension(fileName);
         var fileExtension = Path.GetExtension(fileName);
+        
+        // Probably not a file extension, just a dot in a long file name
+        // https://github.com/Tyrrrz/DiscordChatExporter/issues/708
+        if (fileExtension.Length > 41)
+        {
+            fileNameWithoutExtension = fileName;
+            fileExtension = "";
+        }
 
         return PathEx.EscapeFileName(fileNameWithoutExtension.Truncate(42) + '-' + urlHash + fileExtension);
     }
-}
\ No newline at end of file
+}