sust-course

Autoscript for sustech course on tencent MOOC platform

usage

1. Download this repo and install requests library in your python environment: pip install requests
2. Login to lexiangla.com and use chrome extension https://cookie-editor.com/ to dump the cookies of your session into a json, paste its contents to a new text file cookies.json in this directory.
3. Launch script.py
4. Enjoy

how does it work

This work is based on basic reverse engineering of the protocol used by the server to track its users, which works as follows:

1. The client obtains an additional token on login which is used to post data to a tracking endpoint.
2. Javascipt from the client's browser posts a 1 at the begining of each course to the course's endpoint and then posts a 2 every about 30 seconds, the server sets up a timer that begins on the on and is kept alive by the 2.
3. When the timer hits the duration of the course, the couse is marked as completed on the server.

Therefore, this code simulates this hearbeat protocol to achieve what it does.