/* TEMPLATE GENERATED TESTCASE FILE
Filename: CWE113_HTTP_Response_Splitting__Property_addCookieServlet_61a.java
Label Definition File: CWE113_HTTP_Response_Splitting.label.xml
Template File: sources-sinks-61a.tmpl.java
*/
/*
 * @description
 * CWE: 113 HTTP Response Splitting
 * BadSource: Property Read data from a system property
 * GoodSource: A hardcoded string
 * Sinks: addCookieServlet
 *    GoodSink: URLEncode input
 *    BadSink : querystring to addCookie()
 * Flow Variant: 61 Data flow: data returned from one method to another in different classes in the same package
 *
 * */




import javax.servlet.http.*;

import java.net.URLEncoder;

public class CWE113_HTTP_Response_Splitting__Property_addCookieServlet_61a extends AbstractTestCaseServlet
{
    public void bad(HttpServletRequest request, HttpServletResponse response) throws Throwable
    {
        String data = (new CWE113_HTTP_Response_Splitting__Property_addCookieServlet_61b()).badSource(request, response);

        if (data != null)
        {
            Cookie cookieSink = new Cookie("lang", data);
            /* POTENTIAL FLAW: Input not verified before inclusion in the cookie */
            response.addCookie(cookieSink);
        }

    }

    public void good(HttpServletRequest request, HttpServletResponse response) throws Throwable
    {
        goodG2B(request, response);
        goodB2G(request, response);
    }

    /* goodG2B() - use goodsource and badsink */
    private void goodG2B(HttpServletRequest request, HttpServletResponse response) throws Throwable
    {
        String data = (new CWE113_HTTP_Response_Splitting__Property_addCookieServlet_61b()).goodG2BSource(request, response);

        if (data != null)
        {
            Cookie cookieSink = new Cookie("lang", data);
            /* POTENTIAL FLAW: Input not verified before inclusion in the cookie */
            response.addCookie(cookieSink);
        }

    }

    /* goodB2G() - use badsource and goodsink */
    private void goodB2G(HttpServletRequest request, HttpServletResponse response) throws Throwable
    {
        String data = (new CWE113_HTTP_Response_Splitting__Property_addCookieServlet_61b()).goodB2GSource(request, response);

        if (data != null)
        {
            Cookie cookieSink = new Cookie("lang", URLEncoder.encode(data, "UTF-8"));
            /* FIX: use URLEncoder.encode to hex-encode non-alphanumerics */
            response.addCookie(cookieSink);
        }

    }

    /* 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);
    }
}
