code: protected void site(String cmd) {
          int firstSpace = cmd.indexOf(' ');
          if(firstSpace < 0) firstSpace = cmd.length();
  
          CommandInfo info = siteCommands.get(cmd.substring(0, firstSpace).toUpperCase());
  
          if(info == null) {
              sendResponse(504, "Unknown site command");
              return;
          }
  
          processCommand(info, firstSpace != cmd.length() ? cmd.substring(firstSpace + 1) : "");
      }
docs: SITE command
  @param cmd The command and its arguments