X-Bogus.py

import base64
import functools
import hashlib
import time
from urllib import parse

_X_BOGUS_SHORT_STR = 'Dkdpgh4ZKsQB80/Mfvw36XI1R25-WUAlEi7NLboqYTOPuzmFjJnryx9HVGcaStCe='
_X_BOGUS_UA_KEY = ['\u0000', '\u0001', '\u000e']

def append_x_bogus(url, user_agent):
    return f'{url}&X-Bogus={x_bogus(url, user_agent)}'

def x_bogus(url, user_agent):
    query = parse.urlparse(url).query
    arr2 = _get_arr2(query, user_agent, '')
    garbled_string = _get_garbled_string(arr2)

    ret = ''
    for i in range(0, 21, 3):
        base_num = garbled_string[i] << 16 | garbled_string[i + 1] << 8 | garbled_string[i + 2]
        for j in range(18, -1, -6):
            ret += _X_BOGUS_SHORT_STR[(base_num >> j) & 63]
    return ret

def _0x30492c(a, b):
    d = list(range(256))
    c = 0
    for i in range(256):
        c = (c + d[i] + ord(a[i % len(a)])) % 256
        e = d[i]
        d[i] = d[c]
        d[c] = e

    t = 0
    c = 0
    ret = bytearray(len(b))
    for i in range(len(b)):
        t = (t + 1) % 256
        c = (c + d[t]) % 256
        e = d[t]
        d[t] = d[c]
        d[c] = e
        ret[i] = ord(b[i]) ^ d[(d[t] + d[c]) % 256]
    return ret

def _get_arr2(payload, ua, form):
    salt_payload = list(hashlib.md5(hashlib.md5(payload.encode()).digest()).digest())
    salt_form = list(hashlib.md5(hashlib.md5(form.encode()).digest()).digest())
    salt_ua = list(hashlib.md5(base64.b64encode(_0x30492c(_X_BOGUS_UA_KEY, ua))).digest())
    ts = int(time.time())

    arr1 = [
        64, 0, 1, 14,
        salt_payload[14], salt_payload[15],
        salt_form[14], salt_form[15],
        salt_ua[14], salt_ua[15],
        (ts >> 24) & 255, (ts >> 16) & 255, (ts >> 8) & 255, (ts >> 0) & 255,
        88, 194, 176, 26
    ]
    arr1.append(functools.reduce(lambda a, b: a ^ b, arr1))
    return arr1[::2] + arr1[1::2]

def _get_garbled_string(arr2):
    p = [
        arr2[0], arr2[10], arr2[1], arr2[11], arr2[2], arr2[12], arr2[3], arr2[13],
        arr2[4], arr2[14], arr2[5], arr2[15], arr2[6], arr2[16], arr2[7], arr2[17],
        arr2[8], arr2[18], arr2[9]
    ]
    return [2, 255] + list(_0x30492c(['ÿ'], ''.join(chr(i) for i in p)))