Golang HTTPS server

https_server.go

package main

import (
	"net/http"
	"strings"
)

/*
Generate cert.pem and key.pem with:

	openssl genrsa -out key.pem
	openssl req -new -key key.pem -out csr.pem
	openssl x509 -req -days 9999 -in csr.pem -signkey key.pem -out cert.pem
	rm csr.pem

Taken from https://docs.nodejitsu.com/articles/HTTP/servers/how-to-create-a-HTTPS-server
*/

var (
	httpPort  string = ":3031"
	httpsPort string = ":3030"
)

// HTTPSRedirectFunc redirects from http to https
func HTTPSRedirectFunc(w http.ResponseWriter, r *http.Request) {
	url := r.URL
	url.Scheme = "https"
	urlParts := strings.Split(url.Host, ":")
	url.Host = urlParts[0] + ":" + httpsPort
	http.Redirect(w, r, url.String(), http.StatusMovedPermanently)
}

func HelloHandlerFunc(w http.ResponseWriter, r *http.Request) {
	w.Write([]byte("hello\n"))
}

var (
	HelloHandler    http.Handler = http.HandlerFunc(HelloHandlerFunc)
	HTTPSRedirecter http.Handler = http.HandlerFunc(HTTPSRedirectFunc)
)

func main() {
	go http.ListenAndServeTLS(httpsPort, "cert.pem", "key.pem", HelloHandler)
	http.ListenAndServe(httpPort, HTTPSRedirecter)
}