description = [[ Retrieves IMAP email server capabilities. IMAP4rev1 capabilities are defined in RFC 3501. The CAPABILITY command allows a client to ask a server what commands it supports and possibly any site-specific policy. ]] --- -- @output -- 143/tcp open imap -- |_ imap-capabilities: LOGINDISABLED IDLE IMAP4 LITERAL+ STARTTLS NAMESPACE IMAP4rev1 author = "Brandon Enright" license = "Same as Nmap--See http://nmap.org/book/man-legal.html" categories = {"default", "safe"} require 'imap' require 'shortport' require 'stdnse' portrule = shortport.port_or_service({143}, "imap") action = function(host, port) local capa, err = imap.capabilities(host, port) if type(capa) == "table" then -- Convert the capabilities table into an array of strings. local capstrings = {} local cap, args for cap, args in pairs(capa) do table.insert(capstrings, cap) end return stdnse.strjoin(" ", capstrings) elseif type(err) == "string" then stdnse.print_debug(1, "%s: '%s' for %s", SCRIPT_NAME, err, host.ip) return else return "server doesn't support CAPABILITIES" end end