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package https
import (
"crypto/tls"
"log"
"net/http"
"net/http/httputil"
"net/url"
"strings"
)
const challengeBasePath = "/.well-known/acme-challenge"
// RequestCallback proxies challenge requests to ACME client if the
// request path starts with challengeBasePath. It returns true if it
// handled the request and no more needs to be done; it returns false
// if this call was a no-op and the request still needs handling.
func RequestCallback(w http.ResponseWriter, r *http.Request) bool {
if strings.HasPrefix(r.URL.Path, challengeBasePath) {
scheme := "http"
if r.TLS != nil {
scheme = "https"
}
upstream, err := url.Parse(scheme + "://localhost:" + AlternatePort)
if err != nil {
w.WriteHeader(http.StatusInternalServerError)
log.Printf("[ERROR] ACME proxy handler: %v", err)
return true
}
proxy := httputil.NewSingleHostReverseProxy(upstream)
proxy.Transport = &http.Transport{
TLSClientConfig: &tls.Config{InsecureSkipVerify: true}, // solver uses self-signed certs
}
proxy.ServeHTTP(w, r)
return true
}
return false
}
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