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Dir : ~/proc/6955/root/usr/share/nmap/scripts/

View File Name : pop3-capabilities.nse

local pop3 = require "pop3"
local shortport = require "shortport"
local stdnse = require "stdnse"
local table = require "table"

description = [[
Retrieves POP3 email server capabilities.

POP3 capabilities are defined in RFC 2449. The CAPA command allows a client to
ask a server what commands it supports and possibly any site-specific policy.
Besides the list of supported commands, the IMPLEMENTATION string giving the
server version may be available.
]]

---
-- @output
-- 110/tcp open  pop3
-- |_ pop3-capabilities: USER CAPA RESP-CODES UIDL PIPELINING STLS TOP SASL(PLAIN)

author = "Philip Pickering"
license = "Same as Nmap--See https://nmap.org/book/man-legal.html"

categories = {"default","discovery","safe"}


portrule = shortport.port_or_service({110,995},{"pop3","pop3s"})

action = function(host, port)
  local capa, err = pop3.capabilities(host, port)
  if type(capa) == "table" then
    -- Convert the capabilities table into an array of strings.
    local capstrings = {}
    for cap, args in pairs(capa) do
      if ( #args > 0 ) then
        table.insert(capstrings, ("%s(%s)"):format(cap, table.concat(args, " ")))
      else
        table.insert(capstrings, cap)
      end
    end
    return table.concat(capstrings, " ")
  elseif type(err) == "string" then
    stdnse.debug1("'%s' for %s", err, host.ip)
    return
  else
    return "server doesn't support CAPA"
  end
end