import requests
import re
from pwn import *
from bs4 import BeautifulSoup
import time

url = 'http://www.ringzer0team.com/challenges/14'
sessid = 'rjgeb345348egn181sj495eh65'
verbose = 1

def getPage(url, sessionId):

    print("\n[+] Getting the page from the website")
    session = requests.session()
    request = session.post(url, cookies={'PHPSESSID':sessionId})
    request = str(request.content)
    if(verbose == 1):
        print("\n[+] page downloaded successfully\n")
    return request

def getString(pge):
    soup = BeautifulSoup(pge,'html.parser')
    a = soup.prettify()
    string = soup.find_all("div", {"class": "message"})
    print("[+] Message Matched\n")
    chstr = string[0].text
    chstr = chstr.split("\r\n\t\t----- BEGIN MESSAGE -----\r\n\t\t")
    chstr = str(chstr[1])
    chstr = chstr.split("\r\n\t\t----- END MESSAGE -----\n")
    chstr = chstr[0]
    print("[+] Message extracted successfully\n")
    return chstr

def solve(str,url,sessionId):

    val = re.findall('.{8}',str)
    str = ''
    for i in val:
        x = chr(int(i,2))
        str = x + str
    val = sha512sumhex(str)
    url = url+'/'+val
    print url
    print("[+] Sha512 is calculated\n")
    session = requests.session()
    request = session.post(url,cookies={'PHPSESSID':sessionId})
    soup = BeautifulSoup(request.content,'html.parser')
    response = soup.find_all("div",{"class":"challenge-wrapper"})
    print(response[0].text)

page = getPage(url,sessid)
challenge_str = getString(page)
solve(challenge_str,url,sessid)