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a084340b6d
stdnse.print_debug accepts a format string and arguments, making
string.format redundant in calls of this form:
stdnse.print_debug(1, string.format("%s: error", SCRIPT_NAME))
stdnse.print_debug(("length %d"):format(#tab))
These can be rewritten as:
stdnse.print_debug(1, "%s: error", SCRIPT_NAME)
stdnse.print_debug("length %d", #tab)
119 lines
4.6 KiB
Lua
119 lines
4.6 KiB
Lua
local http = require "http"
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local nmap = require "nmap"
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local shortport = require "shortport"
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local stdnse = require "stdnse"
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local string = require "string"
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local table = require "table"
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local target = require "target"
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description = [[
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Retrieves information from an Apache Hadoop secondary NameNode HTTP status page.
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Information gathered:
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* Date/time the service was started
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* Hadoop version
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* Hadoop compile date
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* Hostname or IP address and port of the master NameNode server
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* Last time a checkpoint was taken
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* How often checkpoints are taken (in seconds)
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* Log directory (relative to http://host:port/)
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* File size of current checkpoint
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For more information about Hadoop, see:
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* http://hadoop.apache.org/
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* http://en.wikipedia.org/wiki/Apache_Hadoop
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* http://wiki.apache.org/hadoop/NameNode
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]]
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---
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-- @usage
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-- nmap --script hadoop-secondary-namenode-info -p 50090 host
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--
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-- @output
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-- PORT STATE SERVICE REASON
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-- 50090/tcp open unknown syn-ack
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-- | hadoop-secondary-namenode-info:
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-- | Start: Wed May 11 22:33:44 PDT 2011
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-- | Version: 0.20.2, f415ef415ef415ef415ef415ef415ef415ef415e
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-- | Compiled: Wed May 11 22:33:44 PDT 2011 by bob from unknown
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-- | Log: /logs/
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-- | namenode: namenode1.example.com/192.0.1.1:8020
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-- | Last Checkpoint: Wed May 11 22:33:44 PDT 2011
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-- | Checkpoint Period: 3600 seconds
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-- |_ Checkpoint Size: 12345678 MB
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--
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author = "John R. Bond"
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license = "Simplified (2-clause) BSD license--See http://nmap.org/svn/docs/licenses/BSD-simplified"
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categories = {"default", "discovery", "safe"}
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portrule = function(host, port)
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-- Run for the special port number, or for any HTTP-like service that is
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-- not on a usual HTTP port.
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return shortport.port_or_service ({50090}, "hadoop-secondary-namenode")(host, port)
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or (shortport.service(shortport.LIKELY_HTTP_SERVICES)(host, port) and not shortport.portnumber(shortport.LIKELY_HTTP_PORTS)(host, port))
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end
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action = function( host, port )
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local result = {}
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local uri = "/status.jsp"
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stdnse.print_debug(1, "%s:HTTP GET %s:%s%s", SCRIPT_NAME, host.targetname or host.ip, port.number, uri)
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local response = http.get( host, port, uri )
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stdnse.print_debug(1, "%s: Status %s", SCRIPT_NAME,response['status-line'] or "No Resposne")
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if response['status-line'] and response['status-line']:match("200%s+OK") and response['body'] then
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local body = response['body']:gsub("%%","%%%%")
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local stats = {}
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stdnse.print_debug(2, "%s: Body %s\n", SCRIPT_NAME,body)
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-- Page isn't valid html :(
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for i in string.gmatch(body,"\n[%w%s]+:%s+[^][\n]+") do
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table.insert(stats,i:match(":%s+([^][\n]+)"))
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end
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if #stats == 5 then
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stdnse.print_debug(1, "%s: namenode %s", SCRIPT_NAME,stats[1])
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stdnse.print_debug(1, "%s: Start %s", SCRIPT_NAME,stats[2])
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stdnse.print_debug(1, "%s: Last Checkpoint %s", SCRIPT_NAME,stats[3])
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stdnse.print_debug(1, "%s: Checkpoint Period %s", SCRIPT_NAME,stats[4])
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stdnse.print_debug(1, "%s: Checkpoint Size %s", SCRIPT_NAME,stats[5])
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table.insert(result, ("Start: %s"):format(stats[2]))
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end
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if body:match("Version:%s*</td><td>([^][\n]+)") then
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local version = body:match("Version:%s*</td><td>([^][\n]+)")
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stdnse.print_debug(1, "%s: Version %s", SCRIPT_NAME,version)
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table.insert(result, ("Version: %s"):format(version))
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port.version.version = version
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end
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if body:match("Compiled:%s*</td><td>([^][\n]+)") then
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local compiled = body:match("Compiled:%s*</td><td>([^][\n]+)")
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stdnse.print_debug(1, "%s: Compiled %s", SCRIPT_NAME,compiled)
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table.insert(result, ("Compiled: %s"):format(compiled))
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end
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if body:match("([^][\"]+)\">Logs") then
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local logs = body:match("([^][\"]+)\">Logs")
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stdnse.print_debug(1, "%s: Logs %s", SCRIPT_NAME,logs)
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table.insert(result, ("Logs: %s"):format(logs))
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end
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if #stats == 5 then
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table.insert(result, ("Namenode: %s"):format(stats[1]))
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table.insert(result, ("Last Checkpoint: %s"):format(stats[3]))
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table.insert(result, ("Checkpoint Period: %s"):format(stats[4]))
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table.insert(result, ("Checkpoint: Size %s"):format(stats[5]))
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end
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if #result > 0 then
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port.version.name = "hadoop-secondary-namenode"
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port.version.product = "Apache Hadoop"
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nmap.set_port_version(host, port)
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end
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if target.ALLOW_NEW_TARGETS then
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if stats[1]:match("([^][/]+)") then
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local newtarget = stats[1]:match("([^][/]+)")
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stdnse.print_debug(1, "%s: Added target: %s", SCRIPT_NAME, newtarget)
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local status,err = target.add(newtarget)
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end
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end
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end
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return stdnse.format_output(true, result)
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end
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