Converted http-userdir-enum.nse to use my http-enum.nse logic (from http.lua). Also moved the 'displayall' script-arg back into the script, not http.lua, because http-userdir-enum.nse actually wants to find non-200 pages (403 Access Denied, for instance).

scripts/http-enum.nse

@@ -31,6 +31,9 @@ for 404 Not Found and the status code returned by the random files).
 -- |_ /x_logo.gif Xerox Phaser Printer
 -- 
 --
+--@args displayall Set to '1' or 'true' to display all status codes that may indicate a valid page, not just
+--                 "200 OK" and "401 Authentication Required" pages. Although this is more likely to find certain
+--                 hidden folders, it also generates far more false positives. 
 --@args limit      Limit the number of folders to check. This option is useful if using a list from, for example, 
 --                 the DirBuster projects which can have 80,000+ entries. 
 
@@ -169,7 +172,7 @@ action = function(host, port)
 	end
 
 	for i, data in pairs(results) do
-		if(http.page_exists(data, result_404, known_404, URLs[i].checkdir)) then
+		if(http.page_exists(data, result_404, known_404, URLs[i].checkdir, nmap.registry.args.displayall)) then
 			if(URLs[i].checkdesc) then
 				stdnse.print_debug(1, "http-enum.nse: Found a valid page! (%s: %s)", URLs[i].checkdir, URLs[i].checkdesc)
 				response = response .. URLs[i].checkdir .. " " .. URLs[i].checkdesc .. "\n"