Udemy Says: 403 Forbidden about udemy-downloader HOT 51 CLOSED

This looks to be caused by a cookie __cf_bm which is a CloudFlare cookie related to anti-bot protection.
https://support.cloudflare.com/hc/en-us/articles/200170156-Understanding-the-Cloudflare-Cookies#12345681

I will try a possible to solution tomorrow.

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f6918e4 fixes the 403 errors when fetching courses and course information. There is still a problem with yt-dlp and fetching MPD manifests causing 403 errors.

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I've found a solution - use https://www.udemy.com/course-name/ instead of https://www.udemy.com/course/course-name/

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True that yt-dlp cannot fetching mpd causing 403 Forbidden when I leeching encrypted files.

And yes, I did fixed utils.py, removed User-Agent header, block IPv6.

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How do you avoid the DRM problem?
@Zeddex works but DRM fail...help me?

Just find this repo widevine-l3-guesser

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@jbauer2016 Seems like you installed a python version which is not the normal python. Where did you installed this python from? The lib folder of the python installation should have subprocess.py library, which in your case is throwing some error. Install python from python.org, and try again.

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Can anyone find a solution?

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Yes, I use the latest version of yt-dlp and comment line 1680 ('User-Agent': random_user_agent(),), but error 403 occur.
I've also tried the method that @amaillo-mc mentioned building yt-dlp, but it doesn't work for me.

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check your bearer token

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i using bearer token but its show error

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i using bearer token but its show error

Use US IP if you are from ME

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Same here:

(venv) root@DESKTOP-Q0SCQBM:/mnt/d/Projects/udemy-downloader# python main.py -c https://www.udemy.com/course/XXX
Login Success

Fetching course information, this may take a minute...
Udemy Says: 403 Forbidden on https://www.udemy.com/api-2.0/users/me/subscribed-courses?fields[course]=id,url,title,published_title&page=1&page_size=500&search=XXX

I think they disable the download option for now

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I think they disable the download option for now

If that were the case, you wouldn't be able to use the website to view courses either. I'll take a look and see if I can find what's going on

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I just tested it and it worked fine for me, so there must be something that different with the way you are trying to download. maybe a vpn?

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This is a real issue and I have made a fix to this for an older version of the application.
Please refer to my Discord post @ https://discord.com/channels/844358207018893323/844358207018893326/874340558796103751

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I using vpn but its not work

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Using or not using VPN won't change anything, unless you have a bad quality VPN (like a free VPN shared between a bunch of people or something like that). However for safety reasons I would suggest using the same IP for the downloader script as your IP was when you logged in to Udemy and ideally also changing the user-agent in the script to the exact same one as your browser.

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how i to change user-agent in scripts?

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https://github.com/Puyodead1/udemy-downloader/blob/master/main.py#L30 change this line after downloading the project

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i done it but its not work again

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Using or not using VPN won't change anything, unless you have a bad quality VPN (like a free VPN shared between a bunch of people or something like that). However for safety reasons I would suggest using the same IP for the downloader script as your IP was when you logged in to Udemy and ideally also changing the user-agent in the script to the exact same one as your browser.

forgot that was for 4xx errors, thought it was 5xx for some reason. I'll go ahead and add your fix.

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This error raise again

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This error raise again

Are you using the latest version of the utility?

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This error raise again

Are you using the latest version of the utility?

Yes, I just clone this repo

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Yeah apparently they have updated it. I've tried to login and then logout of Udemy with vpn's and without and the bearer token now remains the same.

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I have the same error with an aditional message:
403 Forbidden, retrying (attempt 9 )...
Udemy Says: 'NoneType' object has no attribute 'json' on https://www.udemy.com/api-2.0/users/me/subscribed-courses?fields[course]=id,url,title,published_title&page=1&page_size=500&search=URL-to-the-specific-course
I appreciate so much if someone has a solution. Thanks in advanced.

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I have the same issue. Using the same IP to login and run the script

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Looks like something change within Udemy API
got the error

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Just tested myself and am getting this error also, I will see if I can find out why

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I am getting a 502 Bad gateway error as well. Is it same as above? Any possible solution for it?

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Hello @Puyodead1, any updates on the errors?

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I've found a solution - use https://www.udemy.com/course-name/ instead of https://www.udemy.com/course/course-name/

Seems to work as a temporary fix until someone finds a way to bypass the cf cookies. Selenium is the way @Puyodead1

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How do you avoid the DRM problem?

Chapter(s) (16)
Lecture(s) (39)
======= Processing chapter 1 of 16 =======

Processing lecture 1 of 39
001 Introduction.mp4
> Lecture '001 Introduction' is already downloaded, skipping...
======= Processing chapter 2 of 16 =======
Processing lecture 2 of 39
001 Introuction.mp4
> Lecture '001 SAP Introuction' has DRM, attempting to download
Downloading Lecture Tracks...
Traceback (most recent call last):
File "C:\Users\usuario\Downloads\udemy-downloader-master\main.py", line 1730, in
parse_new(_udemy, quality, skip_lectures, dl_assets, dl_captions,
File "C:\Users\usuario\Downloads\udemy-downloader-master\main.py", line 1152, in parse_new
process_lecture(lecture, lecture_path, lecture_file_name,
File "C:\Users\usuario\Downloads\udemy-downloader-master\main.py", line 1040, in process_lecture
handle_segments(source.get("download_url"),
File "C:\Users\usuario\Downloads\udemy-downloader-master\main.py", line 869, in handle_segments
ret_code = subprocess.Popen([
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.1520.0_x64__qbz5n2kfra8p0\lib\subprocess.py", line 951, in init
self._execute_child(args, executable, preexec_fn, close_fds,
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.1520.0_x64__qbz5n2kfra8p0\lib\subprocess.py", line 1420, in _execute_child
hp, ht, pid, tid = _winapi.CreateProcess(executable, args,
FileNotFoundError: [WinError 2] El sistema no puede encontrar el archivo especificado

C:\Users\usuario\Downloads\udemy-downloader-master>

@Zeddex works but DRM fail...help me?

Thanks

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@Zeddex perfect but this error ...

File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.1520.0_x64__qbz5n2kfra8p0\lib\subprocess.py", line 951, in init
self._execute_child(args, executable, preexec_fn, close_fds,
File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.1520.0_x64__qbz5n2kfra8p0\lib\subprocess.py", line 1420, in _execute_child
hp, ht, pid, tid = _winapi.CreateProcess(executable, args,
FileNotFoundError: [WinError 2] El sistema no puede encontrar el archivo especificado

Can I be missing a new library in windows 10?

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@Zeddex perfect but this error ...

File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.1520.0_x64__qbz5n2kfra8p0\lib\subprocess.py", line 951, in init

self._execute_child(args, executable, preexec_fn, close_fds,

File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.9_3.9.1520.0_x64__qbz5n2kfra8p0\lib\subprocess.py", line 1420, in _execute_child

hp, ht, pid, tid = _winapi.CreateProcess(executable, args,

FileNotFoundError: [WinError 2] El sistema no puede encontrar el archivo especificado

Can I be missing a new library in windows 10?

I'm going to assume you didn't read the readme and that you didn't rename the keyfile. Idk, python isnt my primary language so I'm not as familiar with it.

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@rvipinkumar perfect

Although I have the keyid and the key, something keeps failing me, but I'll take it out

Thanks

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Seems this issue has popped up again and the workaround mentioned above is no longer working, I looked into this and the issue is now caused by a Clouflare hCaptcha being displayed. I am not able to bypass this even when trying to use browser automation such as selenium. At this time, there is no solution to this.

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i have this issue too,
now all users have this issue or some users?

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Have the issue as well. Finally got around to setting this up and bam.

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@mahdisky I think so. Udemy probably upgraded their security.

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@Puyodead1 Did you find any solution?

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yt-dlp is failing. check their repo as well.

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@Puyodead1 Did you find any solution?

If I had, I would have made a comment here.

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Same issue here

Error fetching MPD streams: 'ERROR: [generic] Unable to download webpage: HTTP Error 403: Forbidden (caused by <HTTPError 403: 'Forbidden'>); please report this issue on  https://github.com/yt-dlp/yt-dlp . Make sure you are using the latest version; see  https://github.com/yt-dlp/yt-dlp  on how to update. Be sure to call yt-dlp with the --verbose flag and include its complete output.'
Processing 5 of 118```

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That's related to yt-dlp, the only way to fix that issue is to edit yt-dlp util.py and commenting out the user agent header. I'll most likely be making a fork of yt-dlp

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I started to get 403 errors last few days from Udemy
I am guessing it's because the .mpds are stored on their CDN and or captcha

So I downloaded the .mpd file using Chrome's inspector >network>filter for mpd files
Then I upload the .mpd to my own web server and change "mpd_url" in the keys.json file. The keys.json file came from widevine-l3-guesser and is required for widevine-L3-WEB-DL-Script.

And it works using widevine-L3-WEB-DL-Script

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Can anyone find a solution?

A solution has already been found and an update was already pushed

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Closing this now, will reopen if the issue comes back

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Can anyone find a solution?

What Puyodead1 said here: #47 (comment) woks for me.

What I've done was:

1. pip uninstall yt-dlp
2. git clone yt-dlp
3. edit master/yt_dlp/utils.py and remove line 1680 ('User-Agent': random_user_agent(),)
4. compile and install following https://github.com/yt-dlp/yt-dlp#compile

Then udemy-downloader works like a charm.
Hope this helps.

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I try this branch 5d60bfe1ce, but still have got this error.

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I try this branch 5d60bfe1ce, but still have got this error.

did you edit yt-dlp as instructed?

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