From 532dd8341464f646446b91dc44cb9be7bb00ac6f Mon Sep 17 00:00:00 2001
From: Solderpunk <solderpunk@sdf.org>
Date: Thu, 4 Jun 2020 23:12:09 +0200
Subject: [PATCH] Make sure to always provide a MIME type.

---
 handler.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/handler.go b/handler.go
index bf520f0..30568ae 100644
--- a/handler.go
+++ b/handler.go
@@ -190,6 +190,11 @@ func serveFile(path string, log LogEntry, conn net.Conn) {
 	} else {
 		mimeType = mime.TypeByExtension(ext)
 	}
+	// Set a generic MIME type if the extension wasn't recognised
+	if mimeType == "" {
+		mimeType = "application/octet-stream"
+	}
+
 	contents, err := ioutil.ReadFile(path)
 	if err != nil {
 		conn.Write([]byte("50 Error!\r\n"))