metasploit-framework/data/exploits/capture/http/forms/grabforms.rb

#!/usr/bin/env ruby

# Copyright (C) 2008 Metasploit LLC

#
# This script extracts the forms from the main page of each
# web site in a list. The output of this can be used with
# Metasploit (and other tools) to obtain the saved form data
# of these domains.
#

require 'rubygems'  # install rubygems
require 'hpricot'   # gem install hpricot
require 'open-uri'
require 'timeout'

def usage
	$stderr.puts "#{$0} [site list] [output-dir]"
	exit(0)
end

sitelist = ARGV.shift() || usage()
output   = ARGV.shift() || usage()

File.readlines(sitelist).each do |site|
	site.strip!
	next if site.length == 0
	next if site =~ /^#/
	
	out = File.join(output, site + ".txt")
	File.unlink(out) if File.exists?(out)
	
	fd  = File.open(out, "a")
	
	begin
		Timeout.timeout(10) do 
			doc = Hpricot(open("http://#{site}/"))
			doc.search("//form").each do |form|

				# Extract the form
				res = "<form"
				form.attributes.each do |attr|
					res << " #{attr[0]}='#{attr[1].gsub("'", "")}'"
				end
				res << "> "

				# Strip out the value
				form.search("//input") do |inp|
				
					inp.attributes.keys.each do |ikey|
						if (ikey.downcase == "value")
							inp.attributes[ikey] = ""
						end
						
						if(inp.attributes[ikey] =~ /^http/i)
							inp.attributes[ikey] = ""
						end
					end

					res << inp.to_s
				end
				res << "</form>"

				fd.write(res)
			end
		end
	rescue ::Timeout::Error
		$stderr.puts "#{site} timed out"
	rescue ::Interrupt
		raise $!
	rescue ::Exception => e
		$stderr.puts "#{site} #{e.class} #{e}"
	end

	fd.close

	File.unlink(out) if (File.size(out) == 0)

end