fix fsapi in verto, the json_api_function expects cmd & arg in the data object

src/mod/endpoints/mod_verto/mod_verto.c

@@ -3571,10 +3571,15 @@ static switch_bool_t jsapi_func(const char *method, cJSON *params, jsock_t *jsoc
 				}
 
 				if (jsock->allowed_fsapi && !strcmp(function, "fsapi")) {
-					cJSON *cmd = cJSON_GetObjectItem(params, "cmd");
-					cJSON *arg = cJSON_GetObjectItem(params, "arg");
-
-					if (cmd->type == cJSON_String && cmd->valuestring && !auth_api_command(jsock, cmd->valuestring, arg ? arg->valuestring : NULL)) {
+					cJSON *data = cJSON_GetObjectItem(params, "data");
+					cJSON *cmd;
+					cJSON *arg;
+
+					if (data &&
+						(cmd = cJSON_GetObjectItem(data, "cmd")) &&
+						(arg = cJSON_GetObjectItem(data, "arg")) &&
+						cmd->type == cJSON_String && cmd->valuestring &&
+						!auth_api_command(jsock, cmd->valuestring, arg ? arg->valuestring : NULL)) {
 						return SWITCH_FALSE;
 					}
 				}