// Handler for authorizing user
func authHandler(w http.ResponseWriter, r *http.Request) {
log.Println("Redirecting to SO login")
auth_url := backend.AuthURL()
header := w.Header()
header.Add("Location", auth_url)
w.WriteHeader(302)
}
// Handler for authorizing user
// Redirects user to a url for authentication
// Once authenticated, returns to the home page with a code which we use to get the current user
func authHandler(w http.ResponseWriter, r *http.Request) {
ctx := appengine.NewContext(r)
log.Infof(ctx, "Redirecting to SO login")
auth_url := backend.AuthURL(r.Header["Referer"][0])
header := w.Header()
header.Add("Location", auth_url)
w.WriteHeader(302)
}