Help with getting keys for Channel 5 series

[IPTV]

Hi,

I apologize for this newbie question:

How to get the keys for the channel 5 series Aerial Argentina - Season 1?

MPD links:

https://hwdash.channel5.com/cenc/C5447020001/C5447020001A/20221205181445/C5447020001A-tt.mpd

https://hwdash.channel5.com/cenc/C5447020002/C5447020002A/20221213025742/C5447020002A-tt.mpd

https://hwdash.channel5.com/cenc/C5447020003/C5447020003A/20221215033731/C5447020003A-tt.mpd

I know how to get the PSSH values.

But how to get the URL for the licence server?

Is e. g. https://cassie.channel5.com/api/v2/licences/widevine/332/C5447020001?expiry=xxxxx&tag=xxxxx the correct one?

[lomero]

need video link to get lic url, mpd only isn't enough ...

[sawaguna]

look for "auth" in the network tab
On the results, select the URL with the 'GET' Method

Look at the headers, you sould have something like
"authorization : Bearer something....."

That's the header you need to use on cdrm-project

If you look for 'Lic' in the network tab, you'll get the URL for the license field (that's the one with the ?expiry parameter")

[andrewzhong]

1448d7d0d17b4b7a83d8ff6aad4a57c8:3061128cbfa553a30 68d7b46cfcf25ab
678df23e004aff417896b5a20b93931c:3061128cbfa553a30 68d7b46cfcf25ab

[andrewzhong]

1448d7d0d17b4b7a83d8ff6aad4a57c8:3061128cbfa553a3068d7b46cfcf25ab
678df23e004aff417896b5a20b93931c:3061128cbfa553a3068d7b46cfcf25ab

[caputcha]

Please anyone could help how to get license URL from this MPD can't find any I tried all combination lic auth DRM widevine...

[deccavox]

I'm not sure what the problem is. CH5 is one of the easy ones (although shit quality). Play the video. Filter for mpd. Part way through the first advert you get the mpd. Stop the video. Filter for licence (or just lic). The licence is the one beginning with C
Typical for S01E01 of Aerial Argentina:
mpd:
https://akadash0.akamaized.net/cenc/C5447020001/C5447020001A/20221205181445/C5447020001A-tt.mpd

licence
https://cassie.channel5.com/api/v2/licences/widevine/332/C5447020001?expiry=1676717731...63323264613963

Here's my script for CH5 (also good for UKTV). It's designed to be used within WKS-KEYS folder, but you don't need the headers.py

#### version 20230205-1

import os
import base64
import requests
from pywidevine.L3.cdm import deviceconfig
from base64 import b64encode
from pywidevine.L3.decrypt.wvdecryptcustom import WvDecrypt
import shutil
import glob

##########useful when used within VS Code to tell it which directory you're in
abspath = os.path.abspath(__file__)
dname = os.path.dirname(abspath)
os.chdir(dname)
##########

headers = {
    'Accept': '*/*',
    'Accept-Language': 'en-GB,en;q=0.9',
    'Connection': 'keep-alive',
}

def cls():
    # posix is os name for Linux or mac
    if(os.name == 'posix'):
        os.system('clear')  # clear is the bash command
    # else screen will be cleared for windows (os name is actually nt for Windows)
    else:
        os.system('cls')  # cls is the batch command

def WV_Function(pssh, lic_url, cert_b64=None):
    wvdecrypt = WvDecrypt(init_data_b64=pssh, cert_data_b64=cert_b64, device=deviceconfig.device_android_generic)                   
    widevine_license = requests.post(url=lic_url, data=wvdecrypt.get_challenge(), headers=None)
    license_b64 = b64encode(widevine_license.content)
    wvdecrypt.update_license(license_b64)
    Correct, keyswvdecrypt = wvdecrypt.start_process()
    if Correct:
        return keyswvdecrypt

def generate_pssh(mpd):
    division = mpd.split("cenc:pssh")
    for i in division:
        if i[1:5] == "AAAA":
            break

    pssh = i[1:-2]
    print(f"PSSH is {pssh}")
    return pssh

def filename():
    output_name = input("What do you want to call your final file? (do not include file .extension like .mp4) ")
    output_name = f"{output_name}.mp4"
    path = f"./Completed/{output_name}"
    # look to see if duplicate filename
    if os.path.isfile(path):
        print(f"\nyou already have a file called {output_name}. Choose another name\n")
        return filename()
    #look to see if any illegal characters in filename
    illegals = "@$%\/:*?\"<>|~`#^+=\{\};!"
    any_illegals = (set(output_name) & set(illegals))
    if not any_illegals:
        return output_name
    else:
        list_illegals = ' '.join(any_illegals)
        print(f"\nyou have included the following which are not legal characters:       {list_illegals}\n")
        return filename()


cls()
mpd_url = input("enter mpd URL: ")
lic_url = input("\nenter licence URL: ")

mpd = requests.get(mpd_url, headers = headers).text

pssh = generate_pssh(mpd)

#get KEY
keys = WV_Function(pssh, lic_url)
print("KID:KEY found is " + (keys[0]))
keys = str(keys[0])
division = keys.find(":")
key = (keys[division+1:])
print(f"   KEY# is {key}")

print("\n\n")

os.system(f'yt-dlp --allow-u -f bestvideo -N 6 "{mpd_url}" -o encryptVid.mp4')
os.system(f'yt-dlp --allow-u -f bestaudio -N 6 "{mpd_url}" -o encryptAud.m4a')


print("==============================\n\n Decrypting\n\n==============================")

os.system(f"mp4decrypt --show-progress --key 1:{key} encryptVid.mp4 video_decrypt.mp4")
os.system(f"mp4decrypt --show-progress --key 1:{key} encryptAud.m4a audio_decrypt.m4a")

if not os.path.exists("Throwaway"):
    os.makedirs("Throwaway")

if not os.path.exists("Completed"):
    os.makedirs("Completed")

cls()
print("\n\n\n")

output_name = filename()

os.system(f"ffmpeg -i video_decrypt.mp4  -i audio_decrypt.m4a -c:v copy -c:a copy mux_file.mp4")
os.rename("mux_file.mp4", f'{output_name}')

shutil.move(f'{output_name}', "./Completed")

for data in glob.glob("*_decrypt*.*"):
    shutil.move(data,"./Throwaway")
for data in glob.glob("encrypt*.*"):
    shutil.move(data,"./Throwaway")
shutil.rmtree("./Throwaway")

print(f"All done.\n\n Your final file '{output_name}' is in 'Completed' folder")