Problem
There are a lot of machines in 21school campus, which you can use to study. When student is logging in school machine, some information in his/her school website profile, such as host machine number and login time, is automatically updating. Thus, you can find your friend, if he/she is currently working on campus machine, or another student, whos work you should grade. This functionality is implemented via 42's API, which is not working correctly with Kazan 21school campus machines anymore.
Solution
Since student have got a Slack profile in the school Slack workspcae, he can set profile status manually. At the same time environment variables list contains host machine number. It's not convenient to set profile status manually each time student logs in and logs out machine. Slack API gives us possibility to set profile status programmatically sending web request to Slack.
Mac OS (x86)
21_locator.py script gets host machine environment variable info (host machine id and execution date).
add_cron.sh and remove_cron.sh scripts add/remove cronjob to exucute 21_locator.py script with 1 minute interval.
identity file contains slack workspace user private token and id.
adding cronjob
host@name:~$ bash add_cron.shremoving cronjob
host@name:~$ bash remove_cron.sh