How to "ask" SharePoint what resources can be accessed?

Is it possible to "ask" SharePoint, what sites/folders a user has access to?

In other words, how to do an API call which returns a list of resources that a registered user is allowed to acces开发者_JAVA百科s.

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You could loop sites -> webs -> lists -> listitems and use DoesUserHavePermissions on object to see if user can view/create/delete stuff.