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local http = require "http"
local nmap = require "nmap"
local shortport = require "shortport"
local stdnse = require "stdnse"
local string = require "string"
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.
For more information about Hadoop, see:
* http://hadoop.apache.org/
* http://en.wikipedia.org/wiki/Apache_Hadoop
* http://wiki.apache.org/hadoop/NameNode
]]
---
-- @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):
-- | Datanode: datanode1.example.com:50075
-- | Datanode: datanode2.example.com:50075
---
author = "John R. Bond (john.r.bond@gmail.com)"
license = "Simplified (2-clause) BSD license--See http://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.print_debug(1, ("%s:HTTP GET %s:%s%s"):format(SCRIPT_NAME, host.targetname or host.ip, port.number, uri))
local response = http.get( host, port, uri )
stdnse.print_debug(1, ("%s: Status %s"):format(SCRIPT_NAME,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.print_debug(2, ("%s: Body %s\n"):format(SCRIPT_NAME,body))
for datanodetmp in string.gmatch(body, "[%w%.:-_]+/browseDirectory.jsp") do
local datanode = datanodetmp:gsub("/browseDirectory.jsp","")
stdnse.print_debug(1, ("%s: Datanode %s"):format(SCRIPT_NAME,datanode))
table.insert(result, ("Datanode: %s"):format(datanode))
if target.ALLOW_NEW_TARGETS then
if datanode:match("([%w%.]+)") then
local newtarget = datanode:match("([%w%.]+)")
stdnse.print_debug(1, ("%s: Added target: %s"):format(SCRIPT_NAME, newtarget))
local status,err = target.add(newtarget)
end
end
end
end
return result
end
action = function( host, port )
local result = {}
local uri = "/dfshealth.jsp"
stdnse.print_debug(1, ("%s:HTTP GET %s:%s%s"):format(SCRIPT_NAME, host.targetname or host.ip, port.number, uri))
local response = http.get( host, port, uri )
stdnse.print_debug(1, ("%s: Status %s"):format(SCRIPT_NAME,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.print_debug(2, ("%s: Body %s\n"):format(SCRIPT_NAME,body))
if body:match("Started:%s*<td>([^][<]+)") then
local start = body:match("Started:%s*<td>([^][<]+)")
stdnse.print_debug(1, ("%s: Started %s"):format(SCRIPT_NAME,start))
table.insert(result, ("Started: %s"):format(start))
end
if body:match("Version:%s*<td>([^][<]+)") then
local version = body:match("Version:%s*<td>([^][<]+)")
stdnse.print_debug(1, ("%s: Version %s"):format(SCRIPT_NAME,version))
table.insert(result, ("Version: %s"):format(version))
port.version.version = version
end
if body:match("Compiled:%s*<td>([^][<]+)") then
local compiled = body:match("Compiled:%s*<td>([^][<]+)")
stdnse.print_debug(1, ("%s: Compiled %s"):format(SCRIPT_NAME,compiled))
table.insert(result, ("Compiled: %s"):format(compiled))
end
if body:match("Upgrades:%s*<td>([^][<]+)") then
local upgrades = body:match("Upgrades:%s*<td>([^][<]+)")
stdnse.print_debug(1, ("%s: Upgrades %s"):format(SCRIPT_NAME,upgrades))
table.insert(result, ("Upgrades: %s"):format(upgrades))
end
if body:match("([^][\"]+)\">Browse") then
local filesystem = body:match("([^][\"]+)\">Browse")
stdnse.print_debug(1, ("%s: Filesystem %s"):format(SCRIPT_NAME,filesystem))
table.insert(result, ("Filesystem: %s"):format(filesystem))
end
if body:match("([^][\"]+)\">Namenode") then
local logs = body:match("([^][\"]+)\">Namenode")
stdnse.print_debug(1, ("%s: Logs %s"):format(SCRIPT_NAME,logs))
table.insert(result, ("Logs: %s"):format(logs))
end
for i in string.gmatch(body, "[%d%.]+%s[KMGTP]B") do
table.insert(capacity,i)
end
if #capacity >= 6 then
stdnse.print_debug(1, ("%s: Total %s"):format(SCRIPT_NAME,capacity[3]))
stdnse.print_debug(1, ("%s: Used DFS (NonDFS) %s (%s)"):format(SCRIPT_NAME,capacity[4],capacity[5]))
stdnse.print_debug(1, ("%s: Remaining %s"):format(SCRIPT_NAME,capacity[6]))
table.insert(result,"Storage:")
table.insert(result,"Total\tUsed (DFS)\tUsed (Non DFS)\tRemaining")
table.insert(result, ("%s\t%s\t%s\t%s"):format(capacity[3],capacity[4],capacity[5],capacity[6]))
end
local datanodes_live = get_datanodes(host,port, "LIVE")
if next(datanodes_live) then
table.insert(result, "Datanodes (Live): ")
table.insert(result, datanodes_live)
end
local datanodes_dead = get_datanodes(host,port, "DEAD")
if next(datanodes_dead) then
table.insert(result, "Datanodes (Dead): ")
table.insert(result, datanodes_dead)
end
if #result > 0 then
port.version.name = "hadoop-namenode"
port.version.product = "Apache Hadoop"
nmap.set_port_version(host, port)
end
return stdnse.format_output(true, result)
end
end