KringleCon3-VendingMachine

#!/usr/bin/python

import time
import json
import subprocess
from string import ascii_lowercase, ascii_uppercase

ans="LVEdQPpBwr"
guess=""
##guess="LandyCane"

def del_config():
  subprocess.call(["rm","vending-machines.json"])
def build_config(pw,user='elf'):
  mystr = user + "\n" + pw + "\n" + pw + "\n"
  subprocess.run(["./vending-machines"], universal_newlines=True,input=mystr)
def check_config() :
  newpw=""
  f = open("vending-machines.json")
  data=json.load(f)
  for x in data:
      print ( x + " - " + data[x])

  if data:
      if data["password"]:
        return data["password"]
      else :
        return null
  else :
    return null

  ## given a depth int parse the config,
  ## pull the encrypted password, and compare upto given depth.
  ## if matches ret true..
  ## else ret false
  
  
def test_str(test,dep):
    del_config() ## remove config so we will be prompted for a new password
    build_config(test)
    np = check_config()
    print ("checking at depth " + str(dep+1))
    print ("Does " + np + "(" + str(np[dep]) + " match " + ans + "(" + ans[dep] +")??")
    print (np[dep])
    print (ans[dep])
    if np[dep] == ans[dep] :
        return True
    else:
        return False  
      
      
      
      
      
      
myset = "0123456789" + ascii_lowercase + ascii_uppercase
for x in range(len(guess),len(ans)):  
  ## if we prefill guess with first few known chars start at len of guess  
  ## and only try to brute force remaining unkonwn vals..
  print("--------------------------------------------------------")
  print("--------------------------------------------------------")
  print("--------------------------------------------------------")
  print("looking for depth  " + str(x))
  print("expecting encrypt to " + ans[x])
  print("--------------------------------------------------------")
  print("--------------------------------------------------------")
  print("--------------------------------------------------------")
  time.sleep(5)

###     if x== 0:
###         guess="L"
###         print ("skipping depth 0 as we know it is L")
###         time.sleep(5)
###         continue
  print()
  print("..check lc")
  for c in myset:
    pw=guess+c
    print("CURR GUESS===>"+pw)
    print (pw)
    if test_str(pw,x) :
        guess=pw
        print("--------------------------------------------------------")
        print("--------------------------------------------------------")
        print("------------------------------ --------------------------")
        print(" Found Match at depth " + str(x) + "!!! ((" + c + "))")
        print("--------------------------------------------------------")
        print("--------------------------------------------------------")
        time.sleep(5)
        break
    else:
        continue
  print ("ending...outer loop...")