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Directory :  /usr/share/nmap/scripts/

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Current File : /usr/share/nmap/scripts/hadoop-namenode-info.nse
local http = require "http"
local nmap = require "nmap"
local shortport = require "shortport"
local stdnse = require "stdnse"
local string = require "string"
local tab = require "tab"
local table = require "table"
local target = require "target"

description = [[
Retrieves information from an Apache Hadoop NameNode HTTP status page.

Information gathered:
* Date/time the service was started
* Hadoop version
* Hadoop compile date
* Upgrades status
* Filesystem directory (relative to http://host:port/)
* Log directory (relative to http://host:port/)
* Associated DataNodes.
]]

---
-- @usage
-- nmap --script hadoop-namenode-info -p 50070 host
--
-- @output
-- PORT      STATE SERVICE         REASON
-- 50070/tcp open  hadoop-namenode syn-ack
-- | hadoop-namenode-info:
-- |   Started:  Wed May 11 22:33:44 PDT 2011
-- |   Version:  0.20.2-cdh3u1, f415ef415ef415ef415ef415ef415ef415ef415e
-- |   Compiled:  Wed May 11 22:33:44 PDT 2011 by bob from unknown
-- |   Upgrades:  There are no upgrades in progress.
-- |   Filesystem: /nn_browsedfscontent.jsp
-- |   Logs: /logs/
-- |   Storage:
-- |     Total   Used (DFS)  Used (Non DFS)  Remaining
-- |     100 TB  85 TB       500 GB          14.5 TB
-- |   Datanodes (Live):
-- |     datanode1.example.com:50075
-- |_    datanode2.example.com:50075
--
-- @xmloutput
-- <elem key="Started">Wed May 11 22:33:44 PDT 2011</elem>
-- <elem key="Version">0.20.2-cdh3u1, f415ef415ef415ef415ef415ef415ef415ef415e</elem>
-- <elem key="Compiled">Wed May 11 22:33:44 PDT 2011 by bob from unknown</elem>
-- <elem key="Upgrades">There are no upgrades in progress.</elem>
-- <elem key="Filesystem">/nn_browsedfscontent.jsp</elem>
-- <elem key="Logs">/logs/</elem>
-- <table key="Storage">
--   <elem key="Total">100 TB</elem>
--   <elem key="Used (DFS)">85 TB</elem>
--   <elem key="Used (Non DFS)">500 GB</elem>
--   <elem key="Remaining">14.5 TB</elem>
-- </table>
-- <table key="Datanodes (Live)">
--   <elem>datanode1.example.com:50075</elem>
--   <elem>datanode2.example.com:50075</elem>
-- </table>


author = "John R. Bond"
license = "Simplified (2-clause) BSD license--See https://nmap.org/svn/docs/licenses/BSD-simplified"
categories = {"default", "discovery", "safe"}


portrule = function(host, port)
  -- Run for the special port number, or for any HTTP-like service that is
  -- not on a usual HTTP port.
  return shortport.port_or_service ({50070}, "hadoop-namenode")(host, port)
    or (shortport.service(shortport.LIKELY_HTTP_SERVICES)(host, port) and not shortport.portnumber(shortport.LIKELY_HTTP_PORTS)(host, port))
end

get_datanodes = function( host, port, Status )
  local result = {}
  local uri = "/dfsnodelist.jsp?whatNodes=" .. Status
  stdnse.debug1("HTTP GET %s:%s%s", host.targetname or host.ip, port.number, uri)
  local response = http.get( host, port, uri )
  stdnse.debug1("Status %s",response['status-line'] or "No Response" )
  if response['status-line'] and response['status-line']:match("200%s+OK") and response['body']  then
    local body = response['body']:gsub("%%","%%%%")
    stdnse.debug2("Body %s\n",body)
    for datanodetmp in string.gmatch(body, "[%w%.:-_]+/browseDirectory.jsp") do
      local datanode = datanodetmp:gsub("/browseDirectory.jsp","")
      stdnse.debug1("Datanode %s",datanode)
      table.insert(result, datanode)
      if target.ALLOW_NEW_TARGETS then
        if datanode:match("([%w%.]+)") then
          local newtarget = datanode:match("([%w%.]+)")
          stdnse.debug1("Added target: %s", newtarget)
          local status,err = target.add(newtarget)
        end
      end
    end
  end
  return result
end

action = function( host, port )

  local result = stdnse.output_table()
  local uri = "/dfshealth.jsp"
  stdnse.debug1("HTTP GET %s:%s%s", host.targetname or host.ip, port.number, uri)
  local response = http.get( host, port, uri )
  stdnse.debug1("Status %s",response['status-line'] or "No Response")
  if response['status-line'] and response['status-line']:match("200%s+OK") and response['body']  then
    local body = response['body']:gsub("%%","%%%%")
    local capacity = {}
    stdnse.debug2("Body %s\n",body)
    if body:match("Started:%s*<td>([^][<]+)") then
      local start = body:match("Started:%s*<td>([^][<]+)")
      stdnse.debug1("Started %s",start)
      result["Started"] = start
    end
    if body:match("Version:%s*<td>([^][<]+)") then
      local version = body:match("Version:%s*<td>([^][<]+)")
      stdnse.debug1("Version %s",version)
      result["Version"] = version
      port.version.version = version
    end
    if body:match("Compiled:%s*<td>([^][<]+)") then
      local compiled = body:match("Compiled:%s*<td>([^][<]+)")
      stdnse.debug1("Compiled %s",compiled)
      result["Compiled"] = compiled
    end
    if body:match("Upgrades:%s*<td>([^][<]+)") then
      local upgrades = body:match("Upgrades:%s*<td>([^][<]+)")
      stdnse.debug1("Upgrades %s",upgrades)
      result["Upgrades"] = upgrades
    end
    if body:match("([^][\"]+)\">Browse") then
      local filesystem = body:match("([^][\"]+)\">Browse")
      stdnse.debug1("Filesystem %s",filesystem)
      result["Filesystem"] = filesystem
    end
    if body:match("([^][\"]+)\">Namenode") then
      local logs = body:match("([^][\"]+)\">Namenode")
      stdnse.debug1("Logs %s",logs)
      result["Logs"] = logs
    end
    for i in string.gmatch(body, "[%d%.]+%s[KMGTP]B") do
      table.insert(capacity,i)
    end
    if #capacity >= 6 then
      stdnse.debug1("Total %s",capacity[3])
      stdnse.debug1("Used DFS (NonDFS) %s (%s)",capacity[4],capacity[5])
      stdnse.debug1("Remaining %s",capacity[6])
      local storage = {
        ["Total"] = capacity[3],
        ["Used (DFS)"] = capacity[4],
        ["Used (Non DFS)"] = capacity[5],
        ["Remaining"] = capacity[6],
      }
      -- indented tabular string output
      local st = tab.new()
      tab.addrow(st, "", "", "Total", "Used (DFS)", "Used (Non DFS)", "Remaining")
      tab.addrow(st, "", "", capacity[3], capacity[4], capacity[5], capacity[6])
      st = tab.dump(st)
      setmetatable(storage, {
          __tostring = function (t) return "\n" .. st end
        })
      result["Storage"] = storage
    end
    local datanodes_live = get_datanodes(host,port, "LIVE")
    if next(datanodes_live) then
      result["Datanodes (Live)"] = datanodes_live
    end
    local datanodes_dead = get_datanodes(host,port, "DEAD")
    if next(datanodes_dead) then
      result["Datanodes (Dead)"] = datanodes_dead
    end
    if #result > 0 then
      port.version.name = "hadoop-namenode"
      port.version.product = "Apache Hadoop"
      nmap.set_port_version(host, port)
      return result
    end
  end
end

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