/* TEMPLATE GENERATED TESTCASE FILE
Filename: CWE80_XSS__Servlet_getParameter_Servlet_02.java
Label Definition File: CWE80_XSS__Servlet.label.xml
Template File: sources-sink-02.tmpl.java
*/
/*
* @description
* CWE: 80 Cross Site Scripting (XSS)
* BadSource: getParameter_Servlet Read data from a querystring using getParameter()
* GoodSource: A hardcoded string
* BadSink:  Display of data in web page without any encoding or validation
* Flow Variant: 02 Control flow: if(true) and if(false)
*
* */




import javax.servlet.http.*;


public class CWE80_XSS__Servlet_getParameter_Servlet_02 extends AbstractTestCaseServlet
{
    /* uses badsource and badsink */
    public void bad(HttpServletRequest request, HttpServletResponse response) throws Throwable
    {
        String data;
        if (true)
        {
            /* POTENTIAL FLAW: Read data from a querystring using getParameter */
            data = request.getParameter("name");
        }
        else
        {
            /* INCIDENTAL: CWE 561 Dead Code, the code below will never run
             * but ensure data is inititialized before the Sink to avoid compiler errors */
            data = null;
        }

        if (data != null)
        {
            /* POTENTIAL FLAW: Display of data in web page without any encoding or validation */
            response.getWriter().println("<br>bad(): data = " + data);
        }

    }

    /* goodG2B1() - use goodsource and badsink by changing true to false */
    private void goodG2B1(HttpServletRequest request, HttpServletResponse response) throws Throwable
    {
        String data;
        if (false)
        {
            /* INCIDENTAL: CWE 561 Dead Code, the code below will never run
             * but ensure data is inititialized before the Sink to avoid compiler errors */
            data = null;
        }
        else
        {

            /* FIX: Use a hardcoded string */
            data = "foo";

        }

        if (data != null)
        {
            /* POTENTIAL FLAW: Display of data in web page without any encoding or validation */
            response.getWriter().println("<br>bad(): data = " + data);
        }

    }

    /* goodG2B2() - use goodsource and badsink by reversing statements in if */
    private void goodG2B2(HttpServletRequest request, HttpServletResponse response) throws Throwable
    {
        String data;
        if (true)
        {
            /* FIX: Use a hardcoded string */
            data = "foo";
        }
        else
        {
            /* INCIDENTAL: CWE 561 Dead Code, the code below will never run
             * but ensure data is inititialized before the Sink to avoid compiler errors */
            data = null;
        }

        if (data != null)
        {
            /* POTENTIAL FLAW: Display of data in web page without any encoding or validation */
            response.getWriter().println("<br>bad(): data = " + data);
        }

    }

    public void good(HttpServletRequest request, HttpServletResponse response) throws Throwable
    {
        goodG2B1(request, response);
        goodG2B2(request, response);
    }

    /* Below is the main(). It is only used when building this testcase on
     * its own for testing or for building a binary to use in testing binary
     * analysis tools. It is not used when compiling all the testcases as one
     * application, which is how source code analysis tools are tested.
     */
    public static void main(String[] args) throws ClassNotFoundException,
           InstantiationException, IllegalAccessException
    {
        mainFromParent(args);
    }
}
