Downloading from CDA.PL

[rgr]

Is it possible to download such a file?
DRM + fragmentation

https://www.cda.pl/video/1670449e2/vfilm

[white_snake]

Is it possible to download such a file?
DRM + fragmentation

https://www.cda.pl/video/1670449e2/vfilm

Need login.

[rgr]

It is not needed, can watch without logging in.

[2nHxWW6GkN1l916N3ayz8HQoi]

Is it possible to download such a file?
DRM + fragmentation

https://www.cda.pl/video/1670449e2/vfilm

N_m3u8DL-RE.exe https://vcze131.cda.pl/1670449/1670449.mpd --key 65353534306438366535346135346161:39303439626631336363393537303934 -M format=mkv

Here's your movie (apparently it's just the first part of 4): https://www.transfernow.net/dl/20240226Acbs3b9g

Need login.

Polish proxy

[rgr]

Wow, impressive! I didn't think it was possible
It's downloading.
Is the key the same for the entire cda.pl or will it be different for each file? How to get it?

Edit: But it's not that simple. Only the first seconds are good :/

[2nHxWW6GkN1l916N3ayz8HQoi]

Wow, impressive! I didn't think it was possible
It's downloading.
Is the key the same for the entire cda.pl or will it be different for each file? How to get it?

Edit: But it's not that simple. Only the first seconds are good :/

The key is unique. I don't think it's even mathematically possible for 2 videos to have the same keys. If you ever find 2 such videos, you might as well go to a lottery. You can get the keys by spending some time learning about widevine. Read all the sticky threads.

Edit: Here are the other 3 parts of your movie

N_m3u8DL-RE.exe https://vcze133.cda.pl/1670500/1670500.mpd --key 61373732666330633837613961376537:62306233663637633063306231316336 -M format=mkv
N_m3u8DL-RE.exe https://vcze133.cda.pl/1670542/1670542.mpd --key 65353434363733646435376239313533:31663865646663333839373536613733 -M format=mkv
N_m3u8DL-RE.exe https://vcze133.cda.pl/1670572/1670572.mpd --key 65393535653839613762613264653965:61313762326463356164353236313733 -M format=mkv

[white_snake]

Need login.

Polish proxy

Yup, I figured. It said you needed to be a premium user without Polish proxy, so I didn't even try, lol

Wow, impressive! I didn't think it was possible
It's downloading.
Is the key the same for the entire cda.pl or will it be different for each file? How to get it?

Edit: But it's not that simple. Only the first seconds are good :/

It will be different for each video. What do you mean "only the first seconds are good"? Video downloads just fine, I can play the whole 1+ hours of it.

[rgr]

I'm downloading something like this.
(Somehow I managed to download the same thing using Developer Tools some time ago)
https://files.fm/u/t3ategytkq

16:27:14.352 INFO : N_m3u8DL-RE (Beta version) 20230628
16:27:14.369 INFO : Loading URL: https://vcze131.cda.pl/1670449/1670449.mpd
16:27:14.555 INFO : Content Matched: Dynamic Adaptive Streaming over HTTP
16:27:14.556 INFO : Parsing streams...
16:27:14.560 WARN : Writing meta json
16:27:14.561 INFO : Extracted, there are 5 streams, with 3 basic streams, 2 audio streams, 0 subtitle streams
16:27:14.562 INFO : Vid *CENC 1280x722 | 2515 Kbps | 3 | 25 | avc1.42c01f | 1 Segment | ~01h14m40s
16:27:14.562 INFO : Vid *CENC 854x482 | 1410 Kbps | 1 | 25 | avc1.42c01e | 1 Segment | ~01h14m40s
16:27:14.563 INFO : Vid *CENC 640x362 | 708 Kbps | 0 | 25 | avc1.42c015 | 1 Segment | ~01h14m40s
16:27:14.564 INFO : Aud *CENC 4 | 164 Kbps | mp4a.40.2 | 2CH | 1 Segment | ~01h14m40s
16:27:14.565 INFO : Aud *CENC 2 | 132 Kbps | mp4a.40.2 | 2CH | 1 Segment | ~01h14m40s
16:27:22.031 INFO : Parsing streams...
16:27:22.032 INFO : Selected streams:
16:27:22.033 INFO : Vid *CENC 1280x722 | 2515 Kbps | 3 | 25 | avc1.42c01f | 1 Segment | ~01h14m40s
16:27:22.033 INFO : Aud *CENC 4 | 164 Kbps | mp4a.40.2 | 2CH | 1 Segment | ~01h14m40s
16:27:22.034 WARN : Writing meta json
16:27:22.038 INFO : Save Name: 1670449_2024-02-26_16-27-14
16:27:22.038 WARN : MuxAfterDone is detected, binary merging is automatically enabled
16:27:22.158 INFO : Start downloading...Vid 1280x722 | 2515 Kbps | 3 | 25 | avc1.42c01f
16:27:23.910 WARN : Type: cenc
16:27:23.937 WARN : PSSH(WV): EhBlNTU0MGQ4NmU1NGE1NGFhSOPclZsG
16:27:23.965 WARN : KID: 65353534306438366535346135346161
16:27:23.979 WARN : Reading media info...
16:27:24.073 INFO : [0x1]: Video, h264 (Constrained Baseline) (avc1), 1280x722, 25 fps, 19 kb/s
16:27:58.204 INFO : Binary merging...
16:27:59.818 INFO : Decrypting...
16:28:00.020 INFO : Start downloading...Aud 4 | 164 Kbps | mp4a.40.2 | 2CH
16:28:02.345 WARN : Type: cenc
16:28:02.354 WARN : PSSH(WV): EhBlNTU0MGQ4NmU1NGE1NGFhSOPclZsG
16:28:02.373 WARN : KID: 65353534306438366535346135346161
16:28:02.376 WARN : Reading media info...
16:28:02.514 INFO : [0x1]: Audio, aac (LC) (mp4a), 18 kb/s
16:28:05.536 INFO : Binary merging...
16:28:05.695 INFO : Decrypting...
16:28:05.753 WARN : 1670449_2024-02-26_16-27-14.mp4
16:28:05.754 WARN : 1670449_2024-02-26_16-27-14.m4a
16:28:05.754 WARN : Muxing to 1670449_2024-02-26_16-27-14.MUX.mkv
16:28:09.761 WARN : Cleaning files...
16:28:09.864 WARN : Rename to 1670449_2024-02-26_16-27-14.mkv
16:28:09.865 INFO : Done

[2nHxWW6GkN1l916N3ayz8HQoi]

...So are the videos downloading OK?

(Somehow I managed to download the same thing using Developer Tools some time ago)

They probably didn't have DRM before or they used something else. Depends on what you understand by "some time ago".

PS: I added the other 3 parts in case you're interested seeing as this one was only 1/4.

[rgr]

No, every one I downloaded is bad. They are all like the one I uploaded on files.fm. And yours is OK :/
Some time ago = few days.

[2nHxWW6GkN1l916N3ayz8HQoi]

No, every one I downloaded is bad. They are all like the one I uploaded on files.fm. And yours is OK :/
Some time ago = few days.

Out of curiosity try this one

N_m3u8DL-RE.exe https://vcze131.cda.pl/1670449/1670449.mpd?uid=5983825771 --key 65353534306438366535346135346161:39303439626631336363393537303934 -M format=mkv

[rgr]

No success :/

I downloaded mp4decrypt from https://www.bento4.com/documentation/mp4decrypt/

I removed the --key section from the line and got another file, but with the same length and it plays just as badly.
Your (good) one is 13 bytes longer.

[2nHxWW6GkN1l916N3ayz8HQoi]

Try decrypting them manually. Get the latest N_m3u8 and the latest mp4decrypt. Use N_m3u8 for download and decrypt using mp4decrypt. Of course the downloaded file can't be played after you removed --key because it is encrypted. Your problem makes no sense though. :/

Edit: Wait, you said you downloaded mp4decrypt, so you didn't have it before? Well of course it didn't worked. Put mp4decrypt.exe in the same directory as N_m3u8 exe

[rgr]

No, I had it, N_m3u8 exe wouldn't run without it. I just wrote where I got this file from.
Or maybe this key is variable (over time or depending on the IP address), is this possible?

[2nHxWW6GkN1l916N3ayz8HQoi]

No, I had it, N_m3u8 exe wouldn't run without it. I just wrote where I got this file from.
Or maybe this key is variable (over time or depending on the IP address), is this possible?

Then I don't know. @white_snake said it worked for him. The keys aren't variable, they are fixed. It is not feasible at all to store different encrypted videos with the same quality when it comes to storage. So I guess the problem is on your end. Maybe someone else can figure it out. Try decrypting them manually with mp4decrypt with the key I gave you after downloading (with the --key removed in N_m3u8 command)

[rgr]

Manually decrypting worked.

I found an error, but I don't know if it's in N_m3* or mp4decrypt -- it doesn't work properly and doesn't show any error if it's in a folder with national characters.

Reported: https://github.com/nilaoda/N_m3u8DL-RE/issues/364

[white_snake]

Manually decrypting worked.

I found an error, but I don't know if it's in N_m3* or mp4decrypt -- it doesn't work properly and doesn't show any error if it's in a folder with national characters.

Reported: https://github.com/nilaoda/N_m3u8DL-RE/issues/364

What does "national characters" even mean? I would tell you to --use-shaka-packager instead, but mp4decrypt works just fine with this video. Make sure you have an updated version of N_m3u8DL-RE as well.

[rgr]

ąćęłńóśżź -- probably with äöü too.

[white_snake]

ąćęłńóśżź -- probably with äöü too.

Okay, but the description of your issue is still not clear. What needs to have those characters to reproduce the issue? The current working folder? The folder N_m3u8LD-RE is in? The folder mp4decrypt is in? Or what? If you explain it better, I'll try to reproduce it.

I also highly doubt N_m3u8DL-RE doesn't have support for the full Unicode map since the author is Chinese.

[rgr]

ąćęłńóśżź -- probably with äöü too.

Okay, but the description of your issue is still not clear. What needs to have those characters to reproduce the issue? The current working folder? The folder N_m3u8LD-RE is in? The folder mp4decrypt is in? Or what? If you explain it better, I'll try to reproduce it.

I also highly doubt N_m3u8DL-RE doesn't have support for the full Unicode map since the author is Chinese.

From what I noticed - all we need to do is work in a folder with national characters, and the exe files can be in any folder (of course PATH in Windows must be set properly). I suspect there is a path problem when calling mp4decrypt via N_m3u8LD-RE or mp4decrypt doesn't accept path with national chars.
Known bug, so I found it easily. ffmpeg was fixed 1-2 years ago and ffms2 was fixed recently after my reports. Both had a problem with national characters in filenames.

[white_snake]

ąćęłńóśżź -- probably with äöü too.

Okay, but the description of your issue is still not clear. What needs to have those characters to reproduce the issue? The current working folder? The folder N_m3u8LD-RE is in? The folder mp4decrypt is in? Or what? If you explain it better, I'll try to reproduce it.

I also highly doubt N_m3u8DL-RE doesn't have support for the full Unicode map since the author is Chinese.

From what I noticed - all we need to do is work in a folder with national characters, and the exe files can be in any folder (of course PATH in Windows must be set properly). I suspect there is a path problem when calling mp4decrypt via N_m3u8LD-RE or mp4decrypt doesn't accept path with national chars.
Known bug, so I found it easily. ffmpeg was fixed 1-2 years ago and ffms2 was fixed recently after my reports. Both had a problem with national characters in filenames.

You're right, I was able to reproduce it: created a folder named ąćęłńóśżź and set it as current directory in cmd. Here's the results:

• When using ffmpeg as muxer (-M format=mkv) it yields a playable file that shows a black screen (i.e. wasn't decrypted).
• Tried to use mkvmerge (-M muxer=mkvmerge) instead of ffmpeg and it produced an unplayable file.
• Then tried to use shaka as decrypter (--use-shaka-packager) and it finally generated a good file, so it's safe to say mp4decrypt is the problem here.

Edit: you should try manually decrypting with mp4decrypt using paths with those characters and see if the problem occurs. If it does, you should rather open an issue here: https://github.com/axiomatic-systems/Bento4/issues

If it doesn't, then it's probably N_m3u8DL-RE's fault in passing the arguments to ffmpeg/mp4decrypt. Either way you should elaborate more on the issue, it's hardly understandable as it is now.

[2nHxWW6GkN1l916N3ayz8HQoi]

Here is a downloader for https://www.cda.pl . It works only for free DRM content. No account needed. Only Polish IP.

import html
import json
import re

import requests
from cf_clearance import sync_cf_retry, sync_stealth
from playwright.sync_api import sync_playwright
from pywidevine.cdm import Cdm
from pywidevine.device import Device
from pywidevine.pssh import PSSH

WVD_FILE = "device_wvd_file.wvd"

MAIN_URL = "https://www.cda.pl"
CF_RETRIES = 8


def bypass_cloudflare():
    user_agent, cf_clearance = None, None
    retry = 0
    failure = False

    with sync_playwright() as spw:
        browser = spw.firefox.launch(headless=True)
        page = browser.new_page()

        sync_stealth(page)
        page.goto(MAIN_URL)
        while True:
            if sync_cf_retry(page):
                for cookie in page.context.cookies():
                    if cookie.get('name') == 'cf_clearance':
                        cf_clearance = cookie.get('value')
                        break
                user_agent = page.evaluate('() => {return navigator.userAgent}')

                if cf_clearance is not None:
                    break
            else:
                retry = CF_RETRIES

            retry += 1
            if retry >= CF_RETRIES:
                failure = True
                break
        browser.close()

    if failure:
        print("Failed to bypass cloudflare")
        exit(0)
    return user_agent, cf_clearance


def check_cloudflare():
    if "Just a moment..." in requests.get(MAIN_URL).content.decode():
        user_agent, cf_clearance = bypass_cloudflare()
        return {"User-Agent": user_agent, "cf_clearance": cf_clearance}
    return {"User-Agent": None, "cf_clearance": None}


CLOUDFLARE = check_cloudflare()


def get_keys(pssh_value, license_url, custom_data):
    if pssh_value is None:
        return []
    try:
        device = Device.load(WVD_FILE)
    except:
        return []

    pssh_value = PSSH(pssh_value)
    cdm = Cdm.from_device(device)
    cdm_session_id = cdm.open()

    challenge = cdm.get_license_challenge(cdm_session_id, pssh_value)
    licence = requests.post(
        license_url, data=challenge,
        headers={'x-dt-custom-data': custom_data}
    )
    licence.raise_for_status()
    cdm.parse_license(cdm_session_id, licence.content)

    keys = []
    for key in cdm.get_keys(cdm_session_id):
        if "CONTENT" in key.type:
            keys += [f"{key.kid.hex}:{key.key.hex()}"]
    cdm.close(cdm_session_id)
    return keys


def get_video_data(source_url):
    response = requests.get(
        source_url, cookies={'cf_clearance': CLOUDFLARE['cf_clearance']},
        headers={'User-Agent': CLOUDFLARE['User-Agent']}
    ).content.decode()
    if "player_data" not in response:
        print("VPN error")
        exit(0)

    content = json.loads(html.unescape(re.findall(
        r'player_data="([^"]*)"',
        response
    )[0]))["video"]
    manifest = content["manifest"]
    license_url = content["manifest_drm_proxy"]
    custom_data = content["manifest_drm_header"]

    try:
        pssh_value = str(min(re.findall(
            r'<cenc:pssh\b[^>]*>(.*?)</cenc:pssh>',
            requests.get(manifest).content.decode()
        ), key=len))
    except:
        return manifest, None, None, None
    return manifest, pssh_value, license_url, custom_data


def get_download_command(source_url):
    manifest, pssh, license_url, custom_data = get_video_data(source_url)
    if manifest is None:
        return f"No manifest found for {source_url}"

    keys = get_keys(pssh, license_url, custom_data)
    if len(keys) == 0:
        if pssh is not None:
            return f"Need local CDM (in WVD format) for {source_url}"
        return f'N_m3u8DL-RE.exe "{manifest}" -M format=mkv'
    return f'N_m3u8DL-RE.exe "{manifest}" {" ".join([f"--key {k}" for k in keys])} -M format=mkv'


SOURCE_URLS = [
    "https://www.cda.pl/video/1670572f2/vfilm",
    "https://www.cda.pl/video/250188864/vfilm",
    "https://www.cda.pl/video/2508939fb/vfilm",
    "https://www.cda.pl/video/161441361/vfilm",
    "https://www.cda.pl/video/153780264/vfilm",
]

for s in SOURCE_URLS:
    print(get_download_command(s))

Output:

N_m3u8DL-RE.exe "https://vcze133.cda.pl/1670572/1670572.mpd" --key 65393535653839613762613264653965:61313762326463356164353236313733 -M format=mkv
N_m3u8DL-RE.exe "https://vcze132.cda.pl/2501888/2501888.mpd" --key 61613231316161643435373634633964:66373332396336306463303230643834 -M format=mkv
N_m3u8DL-RE.exe "https://vcze134.cda.pl/2508939/2508939.mpd" --key 31323139303536666134663734373337:66656633633631623466396665636334 -M format=mkv
N_m3u8DL-RE.exe "https://vcze804.cda.pl/1614413/1614413.mpd" --key 33646461333363393134353838643932:35623262336231363562663331356237 -M format=mkv
N_m3u8DL-RE.exe "https://vcze801.cda.pl/1537802/1537802.mpd" --key 33356535653566373663643734313536:30313135616230306632306139643832 -M format=mkv

The download command can be used without a VPN to avoid wasting data. The site uses Cloudflare protection but that can be bypassed by generating a cf_clearance cookie using an automated browser. The non-DRM content can be easily downloaded by looking at the network requests for a mp4 file.

Edit: The service has been added to widefrog so it won't be maintained here.

[[ss]vegeta]

Well done as always pepe.

[2nHxWW6GkN1l916N3ayz8HQoi]

Well done as always pepe.

Thank you Wasn't expecting this specific level of cloudflare protection to be bypassed that easily.

[rgr]

Well done as always pepe.

Thank you Wasn't expecting this specific level of cloudflare protection to be bypassed that easily.

Wow, great job.

But how to use this script?

[white_snake]

Wow, great job.

But how to use this script?

Save this script in a text file and name it cdapl.py, install python (select option to add it to PATH), open your command prompt, run

python cdapl.py

[PepeForEver]

Hi,
Please explain what I should do (preferably step by step) if I get the message "Need local CDM (in WVD format) for ...", unfortunately many people have the same problem.

[2nHxWW6GkN1l916N3ayz8HQoi]

explain what I should do (preferably step by step) if I get the message "Need local CDM (in WVD format) for ..."

Read the sticky threads.

[PepeForEver]

@2nHxWW6GkN1l916N3ayz8HQoi I installed pywidevine, so I don't understand where the problem is, what should I do? I'm looking for similar threads on videohelp but I don't see a solution

[2nHxWW6GkN1l916N3ayz8HQoi]

I don't understand where the problem is, what should I do

Are you sure you read them all? The error text is descriptive enough. Did you dump an android cdm? Did you convert it to wvd?