allow custom script

main.go

@@ -16,6 +16,7 @@ var (
 	appVersion    string
 	buildTime     string
 	webDir        string
+	jsonConverter string
 	WarningLogger *log.Logger
 	InfoLogger    *log.Logger
 	ErrorLogger   *log.Logger
@@ -32,7 +33,7 @@ func init() {
 func renderPage(w http.ResponseWriter, req *http.Request) {
 	provider := strings.Split(req.URL.Path, "/")
 	serveFile := filepath.Join(webDir, req.URL.Path)
-	cmd := exec.Command("/root/bin/cert2json.py", "-p", provider[1])
+	cmd := exec.Command(jsonConverter, "-p", provider[1])
 	err := cmd.Run()
 	if err != nil {
 		WarningLogger.Println(err)
@@ -60,7 +61,7 @@ func main() {
   - serve ACME HTML pages
 
 Usage:
-  %v [--listen-address=LISTENADDRESS] [--listen-port=LISTENPORT] [--verbose]
+  %v [--json-converter=JSONCONVERTER] [--listen-address=LISTENADDRESS] [--listen-port=LISTENPORT] [--verbose]
   %v -h | --help
   %v -b | --build
   %v -v | --version
@@ -69,6 +70,7 @@ Options:
   -h --help                         Show this screen
   -b --build                        Print version and build information and exit
   -v --version                      Print version information and exit
+  --json-converter=JSONCONVERTER    Path to json converter script [default: /usr/bin/cert2json.py]
   --listen-address=LISTENADDRESS    Web server address. Check Go net/http documentation [default: any]
   --listen-port=LISTENPORT          Web server port [default: 8000]
   --verbose                         Log also successful connections
@@ -82,6 +84,7 @@ Options:
 	}
 
 	webDir = "/var/www/acme_web"
+	jsonConverter = arguments["--json-converter"].(string)
 	verboseBool = arguments["--verbose"].(bool)
 	listenAddress := arguments["--listen-address"].(string)
 	listenPort := arguments["--listen-port"].(string)