futurly course download

[swappyison]

i am making a futurly course downloader, which can also work as an hls 128 aes downloader, only problem is that the keys it gives is wrong. can someone guide on how to get correct keys? Here's the code:

from playwright.sync_api import sync_playwright
import requests

m3u8DL_RE = 'N_m3u8DL-RE'

from playwright.sync_api import sync_playwright

def get_apk_ids(url):
    with sync_playwright() as p:
        browser = p.chromium.launch()
        context = browser.new_context()
        page = context.new_page()
        page.goto(url)


        apk_ids = page.evaluate('''() => {
            const coursePlayerInit = document.body.outerHTML.split('coursePlayer.init("')[1].split('"')[0];
            const dataId = document.querySelector('div.courseSubItem.enabled-true.selected').getAttribute('data-id');

            return { coursePlayerInit, dataId, apkId};
        }''')

        # Close the browser
        context.close()

        return apk_ids

# Example usage (can be replaced for other sites too)
website_url = 'https://www.futurly.com/s/preview/courses/blender-architecture#6337f80fe4b05a534f0e3d5a' 
apk_ids = get_apk_ids(website_url)
apk_id = apk_ids['apkId']

if apk_ids:
    print("APK IDs:", apk_id)

    print("course-id:", apk_ids['coursePlayerInit'])
    print("video-id:", apk_ids['dataId'])
    url = f"https://www.futurly.com/s/preview/courses/{apk_ids['coursePlayerInit']}/videos/{apk_ids['dataId']}/get"
    response = requests.get(url)
    data = response.json()
    mpd = data["spayee:resource"]["spayee:streamUrl"]
    print(mpd)
import requests
import re
import binascii
from Crypto.Cipher import AES
import subprocess


def modify_url(original_url, segment_to_replace, replacement_segment):
    pattern = re.compile(f"(.*){re.escape(segment_to_replace)}.*")
    match = pattern.match(original_url)

    if match:
        new_url = f"{match.group(1)}{replacement_segment}"
        return new_url
    else:
        print("URL does not match the expected pattern.")
        return None


original_url = mpd
segment_to_replace = "index.m3u8"
replacement_segment = "k/timestamp"

# Modify the URL
new_url = modify_url(original_url, segment_to_replace, replacement_segment)

if new_url:
    # Download the modified URL and save as "timestamp"
    response = requests.get(new_url)
    with open("timestamp", "wb") as file:
        file.write(response.content)

# Decryption code
with open("timestamp", "rb") as file:
    data = file.read()


def _decrypt_key(data, apk_id):
    tmp1 = data[0:16]
    tmp2 = data[32:48]
    dec1 = AES.new(bytes.fromhex(apk_id[1:33]), AES.MODE_ECB)
    tmp3 = dec1.decrypt(tmp1)
    dec2 = AES.new(tmp3, AES.MODE_ECB)
    return dec2.decrypt(tmp2)

result = _decrypt_key(data, apk_id)
hex_result = binascii.hexlify(result)
key = hex_result.decode()
print(key)
ke_ys = ' '.join([f'--custom-hls-key {key}']).split()
subprocess.run([m3u8DL_RE,
                '-M', 'format=mkv:muxer=ffmpeg',
                '--concurrent-download',
                '--log-level', 'INFO',
                '--save-name', 'video', mpd, *ke_ys])