mirror of
https://cdm-project.com/Download-Tools/udemy-downloader.git
synced 2025-04-30 02:24:25 +02:00
aab19bf66f
+ Updated cleanup function to remove the entire temporary lecture folder instead of just leaving behind tons of empty folders + Fixed typo in mux function + Segment count is now properly calculated from segment timeline + Manifest is now parsed from the URL instead of being downloaded, this should be better for downloading multiple courses at once. + Fixed a bug where audio content_type would try to find a max quality + New Downloader: Threaded Downloader uses multiple threads to download files, this should improve download speeds greatly. By default, the threaded downloader is not used, you can use the threaded downloader by passing ``--use-threaded-downloader``. By default, it only uses 10 threads, you can set a custom number of threads with the ``--threads`` option
Udemy Downloader with DRM support
NOTE
This program is WIP, the code is provided as-is and I am not held resposible for any legal issues resulting from the use of this program.
Support
if you want help using the program, join my discord server or use github issues
License
All code is licensed under the MIT license
Description
Simple program to download a Udemy course, has support for DRM videos but requires the user to aquire the decryption key (for legal reasons).
Current only Windows is supported but with some small modifications it should work on linux also (and maybe mac)
Requirements
- You would need to download
ffmpegandmp4decrypterfrom Bento4 SDK and ensure they are in path (typing their name in cmd invokes them).
Usage
quick and dirty how-to
You will need to get a few things before you can use this program:
- Decryption Key ID
- Decryption Key
- Udemy Course URL
- Udemy Bearer Token
Setting up
- rename
.env.sampleto.env(you only need to do this if you plan to use the .env file to store your bearer token) - rename
keyfile.example.jsontokeyfile.json
Aquire bearer token
- open dev tools
- go to network tab
- in the search field, enter
api-2.0/courses 
- click a random request
- locate the
Request Headerssection - copy the the text after
Authorization, it should look likeBearer xxxxxxxxxxx 
- enter this in the
.envfile afterUDEMY_BEARER=(you can also pass this as an argument, see advanced usage for more information)
Key ID and Key
It is up to you to aquire the key and key id. Please don't ask me for help acquiring these, decrypting DRM protected content can be considered piracy.
- Enter the key and key id in the
keyfile.json 
Start Downloading
You can now run python main.py to start downloading. The course will download to out_dir, chapters are seperated into folders.
Advanced Usage
usage: main.py [-h] -c COURSE_URL [-b BEARER_TOKEN] [-q QUALITY] [-t THREADS] [-l LANG] [--skip-lectures] [--download-assets]
[--download-captions] [--use-threaded-downloader] [-d]
Udemy Downloader
optional arguments:
-h, --help show this help message and exit
-c COURSE_URL, --course-url COURSE_URL
The URL of the course to download
-b BEARER_TOKEN, --bearer BEARER_TOKEN
The Bearer token to use
-q QUALITY, --quality QUALITY
Download specific video quality. (144, 360, 480, 720, 1080)
-t THREADS, --threads THREADS
Max number of threads to use when using the threaded downloader (default 10)
-l LANG, --lang LANG The language to download for captions (Default is en)
--skip-lectures If specified, lectures won't be downloaded.
--download-assets If specified, lecture assets will be downloaded.
--download-captions If specified, captions will be downloaded.
--use-threaded-downloader If specified, the experimental threaded downloader will be used
- Passing a Bearer Token and Course ID as an argument
python main.py -c <Course URL> -b <Bearer Token>python main.py -c https://www.udemy.com/courses/myawesomecourse -b <Bearer Token>
- Download a specific quality
python main.py -c <Course URL> -q 720
- Download assets along with lectures
python main.py -c <Course URL> --download-assets
- Download assets and specify a quality
python main.py -c <Course URL> -q 360 --download-assets
- Download captions (Defaults to English)
python main.py -c <Course URL> --download-captions
- Download captions with specific language
python main.py -c <Course URL> --download-captions -l en- English subtitlespython main.py -c <Course URL> --download-captions -l es- Spanish subtitlespython main.py -c <Course URL> --download-captions -l it- Italian subtitlespython main.py -c <Course URL> --download-captions -l pl- Polish Subtitlespython main.py -c <Course URL> --download-captions -l all- Downloads all subtitles- etc
- Skip downloading lecture videos
python main.py -c <Course URL> --skip-lectures --download-captions- Downloads only captionspython main.py -c <Course URL> --skip-lectures --download-assets- Downloads only assets
- Use threaded downloader
python main.py -c <Course URL> --use-threaded-downloader
- Use threaded downloader with custom max threads
python main.py -c <Course URL> --use-threaded-downloader --threads 15
Credits
- https://github.com/Jayapraveen/Drm-Dash-stream-downloader - For the original code which this is based on
- https://github.com/alastairmccormack/pywvpssh - For code related to PSSH extraction
- https://github.com/alastairmccormack/pymp4parse - For code related to mp4 box parsing (used by pywvpssh)
- https://github.com/lbrayner/vtt-to-srt - For code related to converting subtitles from vtt to srt format
- https://github.com/r0oth3x49/udemy-dl - For some of the informaton related to using the udemy api