Autogen the Origin of the log and use it to replace the hardcoded ct.ipng.ch strings in gen-html and gen-env

tesseract/genconf/nginx.go

@@ -151,14 +151,10 @@ func extractPort(listenAddr string) string {
 }
 
 func extractHostname(urlStr string) (string, error) {
-	if !strings.HasPrefix(urlStr, "http://") && !strings.HasPrefix(urlStr, "https://") {
-		urlStr = "https://" + urlStr
-	}
-
 	parsedURL, err := url.Parse(urlStr)
 	if err != nil {
 		return "", err
 	}
 
-	return parsedURL.Hostname(), nil
+	return parsedURL.Host, nil
 }