590 lines
12 KiB
Ruby
Executable File
590 lines
12 KiB
Ruby
Executable File
#!/usr/bin/env ruby
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#
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# $Id$
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#
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# Web Crawler.
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#
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# Author: et [at] metasploit.com 2010
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# $Revision$
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#
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#
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# openssl before rubygems mac os
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require 'openssl'
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require 'rubygems'
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require 'rinda/tuplespace'
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require 'pathname'
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require 'uri'
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begin
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require 'sqlite3'
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rescue LoadError
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puts "Error: sqlite3-ruby not found"
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end
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msfbase = File.symlink?(__FILE__) ? File.readlink(__FILE__) : __FILE__
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$:.unshift(File.join(File.dirname(msfbase), '..', 'lib'))
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require 'rex'
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require 'msf/ui'
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require 'msf/base'
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# Sleep time (secs) between requests
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$sleeptime = 0
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# Timeout for loop ending
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$taketimeout = 15
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# Read timeout (-1 forever)
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$readtimeout = -1
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# Directory containing crawler modules
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$crawlermodulesdir = File.join(File.dirname(msfbase),"..", "data", "msfcrawler")
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# Database
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$dbpathmsf = File.join(Msf::Config.get_config_root, 'sqlite3.db')
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# Store in database?
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$dbs = false
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# Thread number
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$threadnum = 20
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# Dont crawl
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$dontcrawl = ".exe,.zip,.tar,.bz2,.run,.asc,.gz,"
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# Use proxy
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$useproxy = false
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# Proxy host
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$proxyhost = '127.0.0.1'
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# Proxy Port
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$proxyport = 8080
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# Cookie Jar
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$cookiejar = {}
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# Verbose
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$verbose = false
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# Enable URI Limits
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$enableul = true
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# Maximum number of requests per URI (check $enableul)
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$maxurilimit = 10
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class HttpCrawler
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attr_accessor :ctarget, :cport, :cinipath, :cssl, :proxyhost, :proxyport, :useproxy
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def initialize(target,port,inipath,ssl,proxyhost,proxyport,useproxy)
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self.ctarget = target
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self.cport = port
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self.cssl = ssl
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self.useproxy = useproxy
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self.proxyhost = proxyhost
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self.proxyport = proxyport
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self.cinipath = (inipath.nil? or inipath.empty?) ? '/' : inipath
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inireq = {
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'rhost' => self.ctarget,
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'rport' => self.cport,
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'uri' => self.cinipath,
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'method' => 'GET',
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'ctype' => 'text/plain',
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'ssl' => self.cssl,
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'query' => nil,
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'data' => nil
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}
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@NotViewedQueue = Rinda::TupleSpace.new
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@ViewedQueue = Hash.new
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@UriLimits = Hash.new
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insertnewpath(inireq)
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puts "Loading modules: #{$crawlermodulesdir}"
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load_modules
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puts "OK"
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end
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def reqtemplate(target,port,ssl)
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hreq = {
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'rhost' => target,
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'rport' => port,
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'uri' => nil,
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'method' => nil,
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'ctype' => nil,
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'ssl' => ssl,
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'query' => nil,
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'data' => nil
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}
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return hreq
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end
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def storedb(hashreq,response,dbpath)
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#postgres , pg gem
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db = SQLite3::Database.new(dbpath)
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#db = Mysql.new("127.0.0.1", username, password, databasename)
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until !db.transaction_active?
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#puts "Waiting for db"
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#wait
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end
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#puts "db: #{db.transaction_active?}"
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#CREATE TABLE "wmap_requests" (
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# "id" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
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# "host" varchar(255),
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# "address" varchar(16),
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# "address6" varchar(255),
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# "port" integer,
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# "ssl" integer,
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# "meth" varchar(32),
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# "path" text,
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# "headers" text,
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# "query" text,
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# "body" text,
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# "respcode" varchar(16),
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# "resphead" text,
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# "response" text,
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# "created_at" datetime);
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db.execute( "insert into wmap_requests (host,address,address6,port,ssl,meth,path,headers,query,body,respcode,resphead,response,created_at,updated_at) values (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)",
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hashreq['rhost'],
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hashreq['rhost'],
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hashreq['rhost'],
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hashreq['rport'].to_i,
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hashreq['ssl']? 1:0,
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hashreq['method'],
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SQLite3::Blob.new(hashreq['uri']),
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SQLite3::Blob.new(''),
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SQLite3::Blob.new(hashreq['query']? hashreq['query']:''),
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SQLite3::Blob.new(hashreq['data']? hashreq['data']:''),
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response.code.to_s,
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SQLite3::Blob.new(''),
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SQLite3::Blob.new(response.body.to_s),
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Time.new,
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Time.new
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)
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#db.commit
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db.close
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end
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def run
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i, a = 0, []
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begin
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reqfilter = reqtemplate(self.ctarget,self.cport,self.cssl)
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loop do
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####
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#if i <= $threadnum
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# a.push(Thread.new {
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####
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hashreq = @NotViewedQueue.take(reqfilter, $taketimeout)
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ul = false
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if @UriLimits.include?(hashreq['uri']) and $enableul
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#puts "Request #{@UriLimits[hashreq['uri']]}/#{$maxurilimit} #{hashreq['uri']}"
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if @UriLimits[hashreq['uri']] >= $maxurilimit
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#puts "URI LIMIT Reached: #{$maxurilimit} for uri #{hashreq['uri']}"
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ul = true
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end
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else
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@UriLimits[hashreq['uri']] = 0
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end
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if !@ViewedQueue.include?(hashsig(hashreq)) and !ul
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@ViewedQueue[hashsig(hashreq)] = Time.now
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@UriLimits[hashreq['uri']] += 1
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if !File.extname(hashreq['uri']).empty? and $dontcrawl.include? File.extname(hashreq['uri'])
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if $verbose
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puts "URI not crawled #{hashreq['uri']}"
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end
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else
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prx = nil
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if self.useproxy
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prx = "HTTP:"+self.proxyhost.to_s+":"+self.proxyport.to_s
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end
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c = Rex::Proto::Http::Client.new(
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self.ctarget,
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self.cport.to_i,
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{},
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self.cssl,
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nil,
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prx
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)
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sendreq(c,hashreq)
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end
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else
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if $verbose
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puts "#{hashreq['uri']} already visited. "
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end
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end
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####
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#})
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#i += 1
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#else
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# sleep(0.01) and a.delete_if {|x| not x.alive?} while not a.empty?
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# i = 0
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#end
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####
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end
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rescue Rinda::RequestExpiredError
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puts "END."
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return
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end
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end
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#
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# Modified version of load_protocols from psnuffle by Max Moser <mmo@remote-exploit.org>
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#
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def load_modules
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base = $crawlermodulesdir
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if (not File.directory?(base))
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raise RuntimeError,"The Crawler modules parameter is set to an invalid directory"
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end
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@crawlermodules = {}
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cmodules = Dir.new(base).entries.grep(/\.rb$/).sort
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cmodules.each do |n|
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f = File.join(base, n)
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m = ::Module.new
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begin
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m.module_eval(File.read(f, File.size(f)))
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m.constants.grep(/^Crawler(.*)/) do
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cmod = $1
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klass = m.const_get("Crawler#{cmod}")
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@crawlermodules[cmod.downcase] = klass.new(self)
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puts("Loaded crawler module #{cmod} from #{f}...")
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end
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rescue ::Exception => e
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puts("Crawler module #{n} failed to load: #{e.class} #{e} #{e.backtrace}")
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end
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end
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end
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def sendreq(nclient,reqopts={})
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begin
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r = nclient.request_raw(reqopts)
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resp = nclient.send_recv(r, $readtimeout)
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while(resp and resp.code == 100)
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resp = nclient.reread_response(resp, $readtimeout)
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end
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if resp
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#
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# Quickfix for bug packet.rb to_s line: 190
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# In case modules or crawler calls to_s on de-chunked responses
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#
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resp.transfer_chunked = false
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if resp['Set-Cookie']
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#puts "Set Cookie: #{resp['Set-Cookie']}"
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#puts "Storing in cookie jar for host:port #{reqopts['rhost']}:#{reqopts['rport']}"
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#$cookiejar["#{reqopts['rhost']}:#{reqopts['rport']}"] = resp['Set-Cookie']
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end
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if $dbs
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storedb(reqopts,resp,$dbpathmsf)
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end
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puts ">> [#{resp.code}] #{reqopts['uri']}"
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if reqopts['query'] and !reqopts['query'].empty?
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puts ">>> [Q] #{reqopts['query']}"
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end
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if reqopts['data']
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puts ">>> [D] #{reqopts['data']}"
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end
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case resp.code
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when 200
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@crawlermodules.each_key do |k|
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@crawlermodules[k].parse(reqopts,resp)
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end
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when 301..303
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puts "[#{resp.code}] Redirection to: #{resp['Location']}"
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if $verbose
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puts urltohash('GET',resp['Location'],reqopts['uri'],nil)
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end
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insertnewpath(urltohash('GET',resp['Location'],reqopts['uri'],nil))
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when 404
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puts "[404] Invalid link #{reqopts['uri']}"
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else
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puts "Unhandled #{resp.code}"
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end
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else
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puts "No response"
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end
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sleep($sleeptime)
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rescue
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puts "ERROR"
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if $verbose
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puts "#{$!}: #{$!.backtrace}"
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end
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end
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end
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#
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# Add new path (uri) to test non-viewed queue
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#
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def insertnewpath(hashreq)
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hashreq['uri'] = canonicalize(hashreq['uri'])
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if hashreq['rhost'] == self.ctarget and hashreq['rport'] == self.cport
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if !@ViewedQueue.include?(hashsig(hashreq))
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if @NotViewedQueue.read_all(hashreq).size > 0
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if $verbose
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puts "Already in queue to be viewed: #{hashreq['uri']}"
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end
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else
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if $verbose
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puts "Inserted: #{hashreq['uri']}"
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end
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@NotViewedQueue.write(hashreq)
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end
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else
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if $verbose
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puts "#{hashreq['uri']} already visited at #{@ViewedQueue[hashsig(hashreq)]}"
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end
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end
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end
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end
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#
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# Build a new hash for a local path
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#
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def urltohash(m,url,basepath,dat)
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# m: method
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# url: uri?[query]
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# basepath: base path/uri to determine absolute path when relative
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# data: body data, nil if GET and query = uri.query
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uri = URI.parse(url)
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uritargetssl = (uri.scheme == "https") ? true : false
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uritargethost = uri.host
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if (uri.host.nil? or uri.host.empty?)
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uritargethost = self.ctarget
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uritargetssl = self.cssl
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end
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uritargetport = uri.port
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if (uri.port.nil?)
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uritargetport = self.cport
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end
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uritargetpath = uri.path
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if (uri.path.nil? or uri.path.empty?)
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uritargetpath = "/"
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end
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newp = Pathname.new(uritargetpath)
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oldp = Pathname.new(basepath)
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if !newp.absolute?
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if oldp.to_s[-1,1] == '/'
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newp = oldp+newp
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else
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if !newp.to_s.empty?
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newp = File.join(oldp.dirname,newp)
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end
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end
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end
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hashreq = {
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'rhost' => uritargethost,
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'rport' => uritargetport,
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'uri' => newp.to_s,
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'method' => m,
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'ctype' => 'text/plain',
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'ssl' => uritargetssl,
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'query' => uri.query,
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'data' => nil
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}
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if m == 'GET' and !dat.nil?
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hashreq['query'] = dat
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else
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hashreq['data'] = dat
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end
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return hashreq
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end
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# Taken from http://www.ruby-forum.com/topic/140101 by Rob Biedenharn
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def canonicalize(uri)
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u = uri.kind_of?(URI) ? uri : URI.parse(uri.to_s)
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u.normalize!
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newpath = u.path
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while newpath.gsub!(%r{([^/]+)/\.\./?}) { |match|
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$1 == '..' ? match : ''
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} do end
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newpath = newpath.gsub(%r{/\./}, '/').sub(%r{/\.\z}, '/')
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u.path = newpath
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# Ugly fix
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u.path = u.path.gsub("\/..\/","\/")
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u.to_s
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end
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def hashsig(hashreq)
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hashreq.to_s
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end
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end
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class BaseParser
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attr_accessor :crawler
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def initialize(c)
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self.crawler = c
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end
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def parse(request,result)
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nil
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end
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#
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# Add new path (uri) to test hash queue
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#
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def insertnewpath(hashreq)
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self.crawler.insertnewpath(hashreq)
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end
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def hashsig(hashreq)
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self.crawler.hashsig(hashreq)
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end
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def urltohash(m,url,basepath,dat)
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self.crawler.urltohash(m,url,basepath,dat)
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end
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def targetssl
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self.crawler.cssl
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end
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def targetport
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self.crawler.cport
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end
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def targethost
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self.crawler.ctarget
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end
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def targetinipath
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self.crawler.cinipath
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end
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end
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trap("INT") {
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exit()
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}
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$args = Rex::Parser::Arguments.new(
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"-t" => [ true, "Target URI" ],
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"-d" => [ false, "Enable database" ],
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"-u" => [ true, "Use proxy"],
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"-x" => [ true, "Proxy host" ],
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"-p" => [ true, "Proxy port" ],
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"-h" => [ false, "Display this help information"],
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"-v" => [ false, "Verbose" ]
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)
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if ARGV.length < 1
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puts("\n" + " Usage: #{$0} <options>\n" + $args.usage)
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exit
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end
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turl = nil
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$args.parse(ARGV) { |opt, idx, val|
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case opt
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when "-d"
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$dbs = true
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when "-t"
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$crun = true
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turl = val
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when "-u"
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$useproxy = true
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when "-v"
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$verbose = true
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when "-x"
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$proxyhost = val
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when "-p"
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$proxyposrt = val
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when "-h"
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puts("\n" + " Usage: #{$0} <options>\n" + $args.usage)
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exit
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end
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}
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if $crun
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uri = URI.parse(turl)
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tssl = (uri.scheme == "https") ? true : false
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if (uri.host.nil? or uri.host.empty?)
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puts "Error: target http(s)://target/path"
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exit
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end
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if $useproxy
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puts "Using proxy: #{$proxyhost}:#{$proxyport}"
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end
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mc = HttpCrawler.new(uri.host,uri.port,uri.path,tssl,$proxyhost, $proxyport, $useproxy)
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if $dbs
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puts "Database: #{$dbpathmsf}"
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else
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puts "[DATABASE DISABLED]"
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end
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if $enableul
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puts "URI LIMITS ENABLED: #{$maxurilimit} (Maximum number of requests per uri)"
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end
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puts "Target: #{mc.ctarget} Port: #{mc.cport} Path: #{mc.cinipath} SSL: #{mc.cssl}"
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mc.run
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end
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