How to check if the user switched to Administrative Access mode?

[RamonGiovane]

I created a plugin for Cockpit which requires root user or at least sudo access. I'm struggling to understand how could I display an info message requiring a non root user to enter the Administrative Access mode.

The developers guide mentions the cockpit.perrmission API and I gave it a try. No success. It wasn't clear for me how to use it.

[martinpitt]

I.e. you want your page to show an alert or similar when not in privileged mode? This is quite common indeed. We have a little superuser.js library (which you can pull in from cockpit like starter-kit does, or just copy). This has a superuser.allowed boolean(ish) property, and also a callback when the superuser state changes, so that you page can react.

cockpit.permission is older code, and TBH I'm not sure right now how superuser.js is "better" -- but this should also work:

const permission = cockpit.permission({ admin: true });
const amISuperuser = permission.allowed;
permission.addEventListener("changed", () => console.log("it changed!"));

[RamonGiovane]

That's what I needed. Thanks for the quick response.

I ended up using the cockpit.permission. I found it safer since it's in the documentation while I couldn't find superuser there.

I just want to point out that the docs did not state which options we can use on permission, so your code snippet was indispensable for me.

[martinpitt]

True that! Fixed in #21197