From 9850e249fc913a65d2124feaa88918681cb44875 Mon Sep 17 00:00:00 2001
From: Pavel Vesely <pavel@vesely.dev>
Date: Fri, 15 May 2020 08:20:00 +0200
Subject: [PATCH] File Controller bug

---
 Oqtane.Server/Controllers/FileController.cs | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/Oqtane.Server/Controllers/FileController.cs b/Oqtane.Server/Controllers/FileController.cs
index 0c30bbdf..0bfe1de2 100644
--- a/Oqtane.Server/Controllers/FileController.cs
+++ b/Oqtane.Server/Controllers/FileController.cs
@@ -413,8 +413,11 @@ namespace Oqtane.Controllers
                     {
                         _logger.Log(LogLevel.Error, this, LogFunction.Read, "File Does Not Exist {FileId} {FilePath}", id, filepath);
                         HttpContext.Response.StatusCode = 404;
-                        byte[] filebytes = System.IO.File.ReadAllBytes(errorpath);
-                        return File(filebytes, "application/octet-stream", file.Name);
+                        if (System.IO.File.Exists(errorpath))
+                        {
+                            byte[] filebytes = System.IO.File.ReadAllBytes(errorpath);
+                            return File(filebytes, "application/octet-stream", file.Name);
+                        }
                     }
                 }
                 else
@@ -432,6 +435,7 @@ namespace Oqtane.Controllers
                 byte[] filebytes = System.IO.File.ReadAllBytes(errorpath);
                 return File(filebytes, "application/octet-stream", "error.png");
             }
+            return null;
         }
 
         private string GetFolderPath(Folder folder)