[support] allowing anon. users to view unpublished nodes with a key?

Hello,

I wonder if there is a little utility module, which would allow an admin to give friends a key to view an article that is not yet ready for publication, i.e. an unpublished node.

The key would allow the anonymous users to view the corresponding unpublished node.

I had a look at the list of modules, but I am not sure in which category to look. Possible applicable categories all have hundreds of contrib modules in them!

If this module does not exist, I probably will write one later and publish it in contrib. I already have some design ideas to implement this.

thanks,

Augustin, who doesn't want to duplicate someone else's efforts.