Current returns the currently logged-in user, or nil if the user is not signed in.

CurrentOAuth returns the user associated with the OAuth consumer making this request.

IsAdmin returns true if the current user is signed in and is currently registered as an administrator of the application.

LoginURL returns a URL that, when visited, prompts the user to sign in, then redirects the user to the URL specified by dest.

LoginURLFederated is like LoginURL but accepts a user's OpenID identifier.

LogoutURL returns a URL that, when visited, signs the user out, then redirects the user to the URL specified by dest.

OAuthConsumerKey returns the OAuth consumer key provided with the current request.

User represents a user of the application.