nitcorn/file_server: fix warnings on file_stat calls

Signed-off-by: Alexandre Terrasa <alexandre@moz-code.org>

diff --git a/lib/nitcorn/file_server.nit b/lib/nitcorn/file_server.nit
index 0245d1f..d1a09b4 100644 (file)
--- a/lib/nitcorn/file_server.nit
+++ b/lib/nitcorn/file_server.nit
@@ -86,8 +86,9 @@ class FileServer
                # This make sure that the requested file is within the root folder.
                if (local_file + "/").has_prefix(root) then
                        # Does it exists?
-                       if local_file.file_exists then
-                               if local_file.file_stat.is_dir then
+                       var file_stat = local_file.file_stat
+                       if file_stat != null then
+                               if file_stat.is_dir then
                                        # If we target a directory without an ending `/`,
                                        # redirect to the directory ending with `/`.
                                        var uri = request.uri
@@ -106,10 +107,10 @@ class FileServer
                                        end
                                end
 
-                               var is_dir = local_file.file_stat.is_dir
-                               if show_directory_listing and is_dir then
+                               file_stat = local_file.file_stat
+                               if show_directory_listing and file_stat != null and file_stat.is_dir then
                                        response = answer_directory_listing(request, turi, local_file)
-                               else if not is_dir then # It's a single file
+                               else if file_stat != null and not file_stat.is_dir then # It's a single file
                                        response = answer_file(local_file)
                                else response = new HttpResponse(404)
                        else response = new HttpResponse(404)