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redirector.go
32 lines (26 loc) · 767 Bytes
/
redirector.go
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package cloudhttp
import (
"net"
"net/http"
"net/url"
)
// HttpsRedirector is a http.Handler that will redirect all requests it receives to the
// specified host as https.
type HttpsRedirector string
func (h HttpsRedirector) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
// take request's URL, rewrite scheme and host
u := &url.URL{}
*u = *req.URL
u.Scheme = "https"
u.Host = string(h)
http.Redirect(rw, req, u.String(), http.StatusMovedPermanently)
}
// HttpsRedirectorServer launches a redirector and serves serves requests in a separate goroutine.
func HttpsRedirectorServer(proto, ip, targetHost string) error {
l, err := net.Listen(proto, ip)
if err != nil {
return err
}
go http.Serve(l, HttpsRedirector(targetHost))
return nil
}