boolean processRequest(String nick, String login, String hostname, String request) {

    int idx1 = request.indexOf("\"");
    String fName = null;
    if (idx1 != -1) {
      int idx2 = request.indexOf("\"", idx1 +1);
      fName = request.substring(idx1 + 1, idx2 - 1);
      request = request.replaceFirst("(\".*?\")", "fileName");
    }

    StringTokenizer tokenizer = new StringTokenizer(request);
    tokenizer.nextToken();
    String type = tokenizer.nextToken();
    String filename;
    if (fName != null) {
      filename = fName;
      tokenizer.nextToken();
    } else {
      filename = tokenizer.nextToken();
    }

... // rest is the same