YOUKU's license server not giving the data

[Feddryx]

Hi, i am trying to decrypt video from youku chinese drama. URL: https://www.youku.tv/v/v_show/id_XNjQzNjczODY5Mg==.html

I am using this code to get the key:

import os
import json
import m3u8
import base64
import urllib
import requests
from pywidevine.cdm import Cdm
from pywidevine.device import Device
from pywidevine.pssh import PSSH

def cbcs(manifest_url, license_api):
    manifest = m3u8.load(manifest_url)
    pssh = None
    fkeys = ""

    for key in manifest.keys:
        if key and 'base64' in key.uri:
            pssh = PSSH(key.uri.split(',')[-1])

    if pssh is None:
        print('Error getting pssh.')
        return

    device = Device.load('device.wvd')
    cdm = Cdm.from_device(device)
    session_id = cdm.open()
    challenge = cdm.get_license_challenge(session_id, pssh)

    headers = {'content-type': 'application/x-www-form-urlencoded'}
    license_request_data = license_api.split('?')[1] + '&licenseRequest=' + urllib.parse.quote(base64.b64encode(challenge).decode())
    
    try:
        license_response = requests.post(license_api.split('?')[0], headers=headers, data=license_request_data)
        license_response.raise_for_status()
    except requests.HTTPError as e:
        print(f"Failed to get license: {e}")
        return

    license_info = json.loads(license_response.content)['data']
    cdm.parse_license(session_id, license_info)

    for key in cdm.get_keys(session_id):
        if key.type != 'SIGNING':
            fkeys += key.kid.hex + ":" + key.key.hex()
            
    cdm.close(session_id)

    return fkeys.strip()

def load_config(config_file):
    try:
        with open(config_file, 'r') as file:
            config = json.load(file)
            return config
    except Exception as e:
        print(f"Error loading config file: {e}")
        exit(1)

config_path = input("Enter the path to the config file: ")
config = load_config(config_path)
dir_path = os.path.dirname(config_path)
filename = os.path.basename(os.path.splitext(config_path)[0])
m3u8_url = config[0]

try:
    manifest = m3u8.load(m3u8_url)
    if not (manifest.media or manifest.segments):
        raise Exception('Stream might be expired.')
    keys = stream_ext = encryptR_server = copyright_key = None
    if config[1].startswith("http"):
        stream_ext = config[1]
    else:
        encryptR_server = config[1]
        copyright_key = config[2]

    if stream_ext:
        inner_m3u8 = manifest.media[0].uri if manifest.media else None
        if inner_m3u8:
            license_data = stream_ext.replace('cbcs', 'widevine')
            keys = cbcs(inner_m3u8, license_data)
            print(keys)
        else:
            print("Failed to extract inner m3u8 URL.")

    if not keys:
        print("Failed to retrieve decryption keys.")

except Exception as e:
    print(e)

You can get the resource from running

videoPlayer.context.originResource.stream

in the console.

But when i try to get the key, its returning

Could not parse license_message as a SignedMessage, Error parsing message

Then i look at the license server, it is says

{"data":"default error","msg":"create wvpl session error","states":204}

, instead of

[Attachment 84949 - Click to enlarge]

What is the main reason of this error? How to fix it

[2nHxWW6GkN1l916N3ayz8HQoi]

776364376602168a4981f78f9aa3a5c9:dcd489bdea184d10339d38cb873156b9

1080p https://www.swisstransfer.com/d/cd43e214-f9af-4d28-b3af-2d311b634a51

[Feddryx]

oh, now i know the problem is. my wvd got revoked bcs i use android studio wvd. i change it into real device and now its work well