todokete.py

#!/bin/env python

# this is free and unencumbered software released into the public domain
# for more information, please refer to <http://unlicense.org/>

import hmac
import hashlib
import os
import json
import uuid
import time
from hyper import HTTPConnection
from M2Crypto import BIO, RSA, EVP

SERVER_HOST = 'jp-real-prod-v4tadlicuqeeumke.api.game25.klabgames.net'
SERVER_PATH = '/ep1010'
STARTUP_KEY = 'G5OdK4KdQO5UM2nL'
RSA_PUBKEY = '''-----BEGIN PUBLIC KEY-----
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC/ZUSWq8LCuF2JclEp6uuW9+yddLQvb2420+F8
rxIF8+W53BiF8g9m6nCETdRw7RVnzNABevMndCCTD6oQ6a2w0QpoKeT26578UCWtGp74NGg2Q2fH
YFMAhTytVk48qO4ViCN3snFs0AURU06niM98MIcEUnj9vj6kOBlOGv4JWQIDAQAB
-----END PUBLIC KEY-----'''
PACKAGE_NAME = 'com.klab.lovelive.allstars'
MASTER_VERSION = '646e6e305660c69f'

def md5(s):
  return hashlib.md5(s.encode('utf-8')).hexdigest()

def hmac_sha1(key, s):
  try:
    hmacsha1 = hmac.new(key, digestmod='sha1')
  except AttributeError:
    hmacsha1 = hmac.new(key, digestmod=hashlib.sha1)
  hmacsha1.update(s)
  return hmacsha1.hexdigest()

def base64(s):
  return s.encode('base64').replace('\n', '')

def public_encrypt(data):
  bio = BIO.MemoryBuffer(RSA_PUBKEY)
  pubkey = RSA.load_pub_key_bio(bio)
  encrypted = pubkey.public_encrypt(data, RSA.pkcs1_oaep_padding)
  return base64(encrypted)

request_id = 0
session_key = STARTUP_KEY

def call(path, payload, mv = False, t = False, u = None):
  global request_id
  payload = json.dumps(payload)
  request_id += 1
  path_with_query = path + '?p=a'
  if mv:
    path_with_query += '&mv=' + MASTER_VERSION
  path_with_query += '&id=%d' % request_id
  if u:
    path_with_query += '&u=%d' % u
  if t:
    path_with_query += '&t=%d' % int(round(time.time() * 1000))
  print(path_with_query)
  digest_data = path_with_query + ' ' + payload
  digest = hmac_sha1(session_key, digest_data)
  body = '[%s,"%s"]' % (payload, digest)
  print(body)
  c = HTTPConnection(SERVER_HOST)
  c.request('POST', SERVER_PATH + path_with_query, body=body,
    headers={'content-type': 'application/json'})
  resp = c.get_response()
  print('-> %d' % resp.status)
  for name, val in resp.headers:
    print(name + ':' + val)
  res = resp.read()
  print(res)
  return res

def gen_resemara():
  advertising_id = uuid.uuid4()
  return md5(str(advertising_id) + PACKAGE_NAME)

call('/login/startup', {
  'mask': public_encrypt(bytearray(os.urandom(32))),
  'resemara_detection_identifier': gen_resemara(),
  'time_difference': 3600
}, True, True)