mithril - token authentication

auth.js

if( tokenInHash ){
    // User has just been authenticated!
    m.route( body, '/profile', routes.authenticated )
}
else if( localToken ){
    // We already have a token, could still be valid
    m.route( body, '/login', routes.waiting )

    validate( localToken ).then(
        success => m.route( body, '/profile', routes.authenticated ),
        failure => m.route( body, '/login',   routes.lockedOut )
    )
}
else {
    m.route( body, '/signup', routes.lockedOut )
}