N_m3u8DL-CLI gives a "key is not a valid size..."

[fabianmg]

I'm trying to download a video from:

https://3dcollective.es/cursosonline/leccion/5-1-que-significa-pbr-y-porque-es-importante/

And I have been able to find the m3u8 and the key with the debugger ( see img01.png )
When I try to use the url with N_m3u8DL I get that error.

I also tried using hlsdl giving the key that comes with the m3u8:

#EXTM3U
#EXT-X-VERSION:3
#EXT-X-MEDIA-SEQUENCE:0
#EXT-X-ALLOW-CACHE:YES
#EXT-X-TARGETDURATION:13
#EXT-X-KEY:METHOD=AES-128,URI="https://3dcollective.es/cursosonline/?fv_player_hls_key=vray_next/5.01_MaterialesPBR/index",IV=0x095ccc59d4b6d3fe7f74de0fe6346f93
#EXTINF:12.066667,
hls_1080_00000.ts

And the one that gives as response on the next network request:

https://3dcollective.es/cursosonline/?fv_player_hls_key=vray_next/5.01_MaterialesPBR/index

jXusx8sl2Y2wvrW3H5wAZA==

[Obo]

Have you tried to convert the key returned (it's base64 format) into hex? If I didn't make a mistake, it should be "8d7bacc7cb25d98db0beb5b71f9c0064"

Try if it works with that key.

[aqzs]

I tried getting the key from the m3u8 link :

https://d1eicwxibczqbg.cloudfront.net/vray_next/8.01_Post+Base/index.m3u8

But I got a blank response from the request. I probably have to add headers to the command. Right clic in the devtools on the request and copy as curl. Paste that somewhere else and only keep -H .... Add the to the download command.

I can play the link you send :

[Attachment 80205 - Click to enlarge]

I'm able to play the introduction (https://3dcollective.es/cursosonline/leccion/1-1-presentacion-del-curso/)

N_m3u8DL-RE "https://d1eicwxibczqbg.cloudfront.net/vray_next/1.01_Intro/index.m3u8" --custom-hls-key c919b04f419e2db0754f79d2e3eaeef1 --save-name "1.1. PRESENTACIÓN DEL CURSO, OBJETIVOS Y TEMARIO (VISTA PREVIA GRATUITA)"

[Attachment 80206 - Click to enlarge]

[fabianmg]

Have you tried to convert the key returned (it's base64 format) into hex? If I didn't make a mistake, it should be "8d7bacc7cb25d98db0beb5b71f9c0064"

Try if it works with that key.

Yes, I did that but I still get the error.
I'll get the curl response that you asked on the other message.

[aqzs]

To get the key and not a blank response you have to make an api call to 'https://3dcollective.es/cursosonline/wp-admin/admin-ajax.php' :

import requests

# activate the key
data = {'action': 'fv_fp_secure_hls_cookie','url': 'https://d1eicwxibczqbg.cloudfront.net/vray_next/1.01_Intro/index.m3u8'}
response = requests.post('https://3dcollective.es/cursosonline/wp-admin/admin-ajax.php', data=data)

# get the key
params = (('fv_player_hls_key', 'vray_next/1.01_Intro/index'),)
response = requests.get('https://3dcollective.es/cursosonline/', params=params)

print(response.content.hex())

[fabianmg]

I'm able to play the introduction (https://3dcollective.es/cursosonline/leccion/1-1-presentacion-del-curso/)

N_m3u8DL-RE "https://d1eicwxibczqbg.cloudfront.net/vray_next/1.01_Intro/index.m3u8" --custom-hls-key c919b04f419e2db0754f79d2e3eaeef1 --save-name "1.1. PRESENTACIÓN DEL CURSO, OBJETIVOS Y TEMARIO (VISTA PREVIA GRATUITA)"

I'm able to get that one too, but is because is the only one not paywalled.

[aqzs]

Paywall doesn't change anything, I got the m3u8 for the video you want :

N_m3u8DL-RE "https://d1eicwxibczqbg.cloudfront.net/vray_next/8.01_Post+Base/index.m3u8" --custom-hls-key 29c6ac59adb988eb71eae25c439d2e3d --save-name "5.1. ¿QUÉ SIGNIFICA PBR Y POR QUÉ ES IMPORTANTE?"

[Attachment 80208 - Click to enlarge]
https://www.swisstransfer.com/d/73a2c99d-50be-428c-850f-e01311048af9

[fabianmg]

Paywall doesn't change anything, I got the m3u8 for the video you want :

N_m3u8DL-RE "https://d1eicwxibczqbg.cloudfront.net/vray_next/8.01_Post+Base/index.m3u8" --custom-hls-key 29c6ac59adb988eb71eae25c439d2e3d --save-name "5.1. ¿QUÉ SIGNIFICA PBR Y POR QUÉ ES IMPORTANTE?"

[Attachment 80208 - Click to enlarge]
https://www.swisstransfer.com/d/73a2c99d-50be-428c-850f-e01311048af9

I'm also able to download the json and m3u8 but I'm still getting the error with no valid key if I try to download the video itself:

[aqzs]

For :

https://d1eicwxibczqbg.cloudfront.net/vray_next/5.02_LookDevMateriales/index.m3u8

N_m3u8DL-RE "https://d1eicwxibczqbg.cloudfront.net/vray_next/5.02_LookDevMateriales/index.m3u8" --custom-hls-key "577397b6ee551a522a1477f46e80effc" --save-name "name"

[Attachment 80210 - Click to enlarge]
Working fine on my side

[aqzs]

Here is a script that based on the page url will return the download command :

import re
import json
import requests

pageurl = 'https://3dcollective.es/cursosonline/leccion/1-1-presentacion-del-curso/'
pageurl = input('pageurl: ')

cookies = {
}

headers = {
}

response = requests.get(pageurl, headers=headers, cookies=cookies)
pattern = r'data-item="(.*?)"'
match = re.search(pattern, response.text)
if match:
    data_item_content = match.group(1)
    data_item_content = data_item_content.replace('"', '"')
    data_item_json = json.loads(data_item_content)
    m3u8_url = data_item_json['sources'][0]['src']

    # activate the key
    data = {'action': 'fv_fp_secure_hls_cookie','url': m3u8_url}
    response = requests.post('https://3dcollective.es/cursosonline/wp-admin/admin-ajax.php', data=data)

    # get the key
    params = (('fv_player_hls_key', m3u8_url.split('cloudfront.net/')[1].replace('.m3u8', '')),)
    response = requests.get('https://3dcollective.es/cursosonline/', params=params)
    key = response.content.hex()

    name = 'name'

    print(f"""N_m3u8DL-RE "{m3u8_url}" --custom-hls-key "{key}" --save-name "{name}" """)
else:
    print("data-item attribute not found")

You have to edit cookies and headers, I could't test with others course than the free one..

[fabianmg]

For :

https://d1eicwxibczqbg.cloudfront.net/vray_next/5.02_LookDevMateriales/index.m3u8

N_m3u8DL-RE "https://d1eicwxibczqbg.cloudfront.net/vray_next/5.02_LookDevMateriales/index.m3u8" --custom-hls-key "577397b6ee551a522a1477f46e80effc" --save-name "name"

[Attachment 80210 - Click to enlarge]
Working fine on my side

Thank you!!!

Sh**!, I spent the whole morning banging my head on this. It was the console I was using ( git-bash ), I changed to a powershell console and now works perfectly.

Again, thanl you very much for your help.

[fabianmg]

Here is a script that based on the page url will return the download command :

import re
import json
import requests

pageurl = 'https://3dcollective.es/cursosonline/leccion/1-1-presentacion-del-curso/'
pageurl = input('pageurl: ')

cookies = {
}

headers = {
}

response = requests.get(pageurl, headers=headers, cookies=cookies)
pattern = r'data-item="(.*?)"'
match = re.search(pattern, response.text)
if match:
    data_item_content = match.group(1)
    data_item_content = data_item_content.replace('"', '"')
    data_item_json = json.loads(data_item_content)
    m3u8_url = data_item_json['sources'][0]['src']

    # activate the key
    data = {'action': 'fv_fp_secure_hls_cookie','url': m3u8_url}
    response = requests.post('https://3dcollective.es/cursosonline/wp-admin/admin-ajax.php', data=data)

    # get the key
    params = (('fv_player_hls_key', m3u8_url.split('cloudfront.net/')[1].replace('.m3u8', '')),)
    response = requests.get('https://3dcollective.es/cursosonline/', params=params)
    key = response.content.hex()

    name = 'name'

    print(f"""N_m3u8DL-RE "{m3u8_url}" --custom-hls-key "{key}" --save-name "{name}" """)
else:
    print("data-item attribute not found")

You have to edit cookies and headers, I could't test with others course than the free one..

Thanks, I'll use it.