define if accept only POST request by config

APIServer.go

@@ -228,10 +228,13 @@ func handleRequest(w http.ResponseWriter, r *http.Request) {
 	if r.RequestURI == "/favicon.ico" {
 		return
 	}
-	if r.Method != http.MethodPost {
+
-		w.WriteHeader(http.StatusMethodNotAllowed)
+	if cfg.Settings.MustPost {
-		fmt.Fprintf(w, "MethodNotAllowed: %v\r\n", http.StatusMethodNotAllowed)
+		if r.Method != http.MethodPost {
-		return
+			w.WriteHeader(http.StatusMethodNotAllowed)
+			fmt.Fprintf(w, "MethodNotAllowed: %v\r\n", http.StatusMethodNotAllowed)
+			return
+		}
 	}
 
 	reqID := uuid.NewV4().String()
@@ -351,8 +354,7 @@ func handleSetUutInfo(w http.ResponseWriter, r *http.Request) {
 	host := ""
 	if cfg.Settings.HostMode == 0 {
 		host = strings.Split(r.Host, ":")[0]
-	}
+	} else {
-	if cfg.Settings.HostMode == 1 {
 		host, err = os.Hostname()
 		if err != nil {
 			host = "hostname"

APIServer.yml

@@ -3,6 +3,7 @@ Settings:
   HookScript: APIHOOK
 # HostMode: 0=IP Address; 1=Hostname
   HostMode: 1
+  MustPost: false
   ParamCheck: false
   LogRequest: false
   LogResponse: false

cnf/cnf.go

@@ -9,6 +9,7 @@ type Settings struct {
 	ListenPort  string `yaml:"ListenPort"`
 	HookScript  string `yaml:"HookScript"`
 	HostMode    int    `yaml:"HostMode"`
+	MustPost    bool   `yaml:"MustPost"`
 	ParamCheck  bool   `yaml:"ParamCheck"`
 	LogRequest  bool   `yaml:"LogRequest"`
 	LogResponse bool   `yaml:"LogResponse"`