[kio] src/ioslaves/file/kauth: Do not cache root password for the whole session

[Elvis Angelaccio]

On venerdì 12 gennaio 2018 19:40:50 CET, David Edmundson wrote:
> Can we keep all messages on the ML. We can only see half a 
> conversation on here.
>
>> TBH I can't see how any application will bypass the prompt
>
> A rogue plugin can call org.kde.kio.file.exec directly with 
> kauth.  Or even just use DBus directly.

Right, even though if you have plugins that execute random code is already 
game over.

I'm sure we can find another solution for this problem, rather than 
removing the Persistence attribute altogether (which kills the usability of 
the feature).

Cheers,
Elvis