gistfile1.js

//FIXME: validate user input somewhere

    function getAuthParams(req) {
        //1. check `authuser` and `authpass` request query parameter
        //2. check `authuser` and `authpass` request body properties
        var user = req.query.authuser || req.body.authuser,
            pass = req.query.authpass || req.body.authpass;
        if (user && pass) return {
            user: user,
            pass: pass
        };
        return null;
    }