In Facebook's Graph API, how do I get all the friends of my friends?

I wan开发者_如何学Ct a list of friends of my friends. Is that possible?

Looks like there's no way to do this anymore. I tried this FQL query:

SELECT uid2 FROM friend WHERE uid1 IN 
    (SELECT uid2 FROM friend WHERE uid1 = <UID>)

And I get an error message that says this:

Can't lookup all friends of . Can only lookup for the logged in user (), or friends of the logged in user with the appropriate permission

Additionally, there's no friends_friends permission or anything similar. Conversely, you can get your friends' likes using the friends_likes permission, so this looks like an intentional omission.

In essence, it looks like you have to have an install from a given user to get that user's friends.