yowsup utilities for getting new whatsapp.apk and processing it to get whatsapp version and classdex md5

yowsup-utilities.py

#!/usr/bin/python
# yowsup utilities for getting new whatsapp.apk and processing it to get whatsapp version and classdex md5
# 
# Output : 
# WhatsApp Version: 2.17.296
# WhatsApp ClassesDex: YrJNPljM3TuNFPIOZ+jziw==
#
# @MasBog

import os
import requests
import sys
import base64
import zipfile
import hashlib
import cookielib
from requests.packages.urllib3.exceptions import InsecureRequestWarning
requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
try:
	import urllib.request as urllib2
except ImportError:
	import urllib2
from bs4 import BeautifulSoup

try:
	os.remove("whatsapp.apk")
except OSError:
	pass


url = "https://www.cdn.whatsapp.net/android/"
response = requests.request("GET", url, verify=False)

soup = BeautifulSoup(response.text, "html.parser")
apk_url = soup.find_all('a', href=True)
download_url = apk_url[0]['href']
print("URL download for APK : "+download_url)

file_name = "whatsapp.apk"
with open(file_name, "wb") as f:
		print "Downloading %s" % file_name
		response = requests.get(download_url, stream=True)
		total_length = response.headers.get('content-length')

		if total_length is None: # no content length header
			f.write(response.content)
		else:
			dl = 0
			total_length = int(total_length)
			for data in response.iter_content(chunk_size=4096):
				dl += len(data)
				f.write(data)
				done = int(50 * dl / total_length)
				sys.stdout.write("\r[%s%s]" % ('=' * done, ' ' * (50-done)) )    
				sys.stdout.flush()

print("\n=== Processing APK ===")		
zipFile = zipfile.ZipFile("whatsapp.apk",'r')
classesDexFile = zipFile.read('classes.dex')
hash = hashlib.md5()
hash.update(classesDexFile)

version = classesDexFile.decode("utf-8", errors = 'ignore').partition('App: ')[-1].partition(',')[0]

print("WhatsApp Version: " + version)
print("WhatsApp ClassesDex: " + base64.b64encode(hash.digest()).decode("utf-8"));