// RedirectHandler redirects users to their desired location.
// Not accessed via Ajax, just by end users
func RedirectHandler(db database.ShortenBackend, domain string) func(http.ResponseWriter, *http.Request) {
return func(w http.ResponseWriter, r *http.Request) {
slug := mux.Vars(r)["slug"]
long, err := db.GetLongURL(slug)
var errNotFound database.ErrNotFound
if err == errNotFound {
w.WriteHeader(404)
fmt.Fprintf(w, fmt.Sprintf(errMsgTemplate, slug, domain, domain))
return
}
if err != nil {
log.Println(kayvee.FormatLog("shorty", kayvee.Error, "redirect", msg{
"err": err.Error(),
}))
w.WriteHeader(500)
w.Write([]byte(err.Error()))
return
}
http.Redirect(w, r, long, 302)
return
}
}
