go proxy

goproxy.go

/*
	url1, _ := url.Parse("https://www.google.es")
	url2, _ := url.Parse("http://www.mon.cat")
	a := &proxy{
		entry: map[string]*httputil.ReverseProxy{
			"google": httputil.NewSingleHostReverseProxy(url1),
			"mon":    httputil.NewSingleHostReverseProxy(url2),
		},
	}
	http.Handle("/", a)
	http.ListenAndServe(":8888", nil)
*/

type proxy struct {
	entry map[string]*httputil.ReverseProxy
}

func (p *proxy) ServeHTTP(w http.ResponseWriter, r *http.Request) {

	log.Printf("Request %s/n", r.Host)
	for k, v := range p.entry {
		if strings.HasPrefix(r.Host, k) {
			r.Host = "www.google.es"
			v.ServeHTTP(w, r)
		}
	}

}