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- Removed a few unused imports
+ Reworked the way paths are formed so they shouldn't be a problem on other operating systems

NOTE: the new dependencies in requirements.txt are NOT required at this time

2021-05-21 09:27:49 -04:00

.github

Create dependabot.yml

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.env.sample

download drm videos and non-drm videos, also added progress bar

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Initial commit

2020-11-05 23:55:16 +05:30

.gitignore

Asset Downloading and Quality Selection

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dashdownloader_multisegment.py

We can now extract the PSSH box from the initalization mp4 to get the Key ID for decryption. Also added re-enabled decryption

2021-05-18 15:39:04 -04:00

keyfile.example.json

semi udemy support

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LICENSE

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main.py

Path updates

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mp4parse.py

We can now extract the PSSH box from the initalization mp4 to get the Key ID for decryption. Also added re-enabled decryption

2021-05-18 15:39:04 -04:00

README.md

Update README.md

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requirements.txt

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utils.py

We can now extract the PSSH box from the initalization mp4 to get the Key ID for decryption. Also added re-enabled decryption

2021-05-18 15:39:04 -04:00

vtt_to_srt.py

Subtitle Support

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widevine_pssh_pb2.py

We can now extract the PSSH box from the initalization mp4 to get the Key ID for decryption. Also added re-enabled decryption

2021-05-18 15:39:04 -04:00

README.md

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 ffmpeg and mp4decrypterfrom 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.sample to .env (you only need to do this if you plan to use the .env file to store your bearer token)
rename keyfile.example.json to keyfile.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 Headers section
copy the the text after Authorization, it should look like Bearer xxxxxxxxxxx
enter this in the .env file after UDEMY_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] [-d] [-q QUALITY] [-l LANG] [--skip-lectures] [--download-assets]
               [--download-captions]

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
  -d, --debug           Use test_data.json rather than fetch from the udemy api.
  -q QUALITY, --quality QUALITY
                        Download specific video quality. (144, 360, 480, 720, 1080)
  -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.

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 subtitles
- python main.py -c <Course URL> --download-captions -l es - Spanish subtitles
- python main.py -c <Course URL> --download-captions -l it - Italian subtitles
- python main.py -c <Course URL> --download-captions -l pl - Polish Subtitles
- python main.py -c <Course URL> --download-captions -l all - Downloads all subtitles
- etc
Skip downloading lecture videos
- python main.py --skip-lectures --download-captions - Downloads only captions
- python main.py --skip-lectures --download-assets - Downloads only assets

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