fix http group sending

http.go

@@ -281,28 +281,37 @@ func HttpHandleGroupAddClient(response http.ResponseWriter, request *http.Reques
 }
 
 func HttpHandleNewMessage(response http.ResponseWriter, request *http.Request) {
+	if !isMethodAllowed(&response, request) {
+		return
+	}
+
 	token := request.FormValue("token")
 	if token == "" {
 		http.Error(response, "invalid token", http.StatusUnauthorized)
+		return
 	}
 
 	targetStr := request.FormValue("subject")
 	if targetStr == "" {
 		http.Error(response, "invalid subject", http.StatusBadRequest)
+		return
 	}
 	targetId, err := ConvertStringUint32(targetStr)
 	if err != nil {
 		http.Error(response, "invalid subject", http.StatusBadRequest)
+		return
 	}
 
 	content := request.FormValue("content")
 	if content == "" {
 		http.Error(response, "invalid content", http.StatusBadRequest)
+		return
 	}
 
 	clientId, err := TokenValidateGetId(token)
 	if err != nil {
 		http.Error(response, "invalid token", http.StatusUnauthorized)
+		return
 	}
 	ctx := request.Context()
 	err = WsSendToGroup(ctx, targetId, clientId, content)