/* TEMPLATE GENERATED TESTCASE FILE
Filename: CWE400_Resource_Exhaustion__getCookies_Servlet_for_loop_71a.java
Label Definition File: CWE400_Resource_Exhaustion.label.xml
Template File: sources-sinks-71a.tmpl.java
*/
/*
 * @description
 * CWE: 400 Resource Exhaustion
 * BadSource: getCookies_Servlet Read count from the first cookie using getCookies()
 * GoodSource: A hardcoded non-zero, non-min, non-max, even number
 * Sinks: for_loop
 *    GoodSink: Validate count before using it as the loop variant in a for loop
 *    BadSink : Use count as the loop variant in a for loop
 * Flow Variant: 71 Data flow: data passed as an Object reference argument from one method to another in different classes in the same package
 *
 * */




import javax.servlet.http.*;


import java.util.logging.Level;

public class CWE400_Resource_Exhaustion__getCookies_Servlet_for_loop_71a extends AbstractTestCaseServlet
{
    public void bad(HttpServletRequest request, HttpServletResponse response) throws Throwable
    {
        int count;

        count = Integer.MIN_VALUE; /* initialize count in case there are no cookies */

        /* Read count from cookies */
        {
            Cookie cookieSources[] = request.getCookies();
            if (cookieSources != null)
            {
                /* POTENTIAL FLAW: Read count from the first cookie value */
                String stringNumber = cookieSources[0].getValue();
                try
                {
                    count = Integer.parseInt(stringNumber.trim());
                }
                catch(NumberFormatException exceptNumberFormat)
                {
                    IO.logger.log(Level.WARNING, "Number format exception reading count from cookie", exceptNumberFormat);
                }
            }
        }

        (new CWE400_Resource_Exhaustion__getCookies_Servlet_for_loop_71b()).badSink((Object)count , request, response );
    }

    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
    {
        int count;

        /* FIX: Use a hardcoded number that won't cause underflow, overflow, divide by zero, or loss-of-precision issues */
        count = 2;

        (new CWE400_Resource_Exhaustion__getCookies_Servlet_for_loop_71b()).goodG2BSink((Object)count , request, response );
    }

    /* goodB2G() - use badsource and goodsink */
    private void goodB2G(HttpServletRequest request, HttpServletResponse response) throws Throwable
    {
        int count;

        count = Integer.MIN_VALUE; /* initialize count in case there are no cookies */

        /* Read count from cookies */
        {
            Cookie cookieSources[] = request.getCookies();
            if (cookieSources != null)
            {
                /* POTENTIAL FLAW: Read count from the first cookie value */
                String stringNumber = cookieSources[0].getValue();
                try
                {
                    count = Integer.parseInt(stringNumber.trim());
                }
                catch(NumberFormatException exceptNumberFormat)
                {
                    IO.logger.log(Level.WARNING, "Number format exception reading count from cookie", exceptNumberFormat);
                }
            }
        }

        (new CWE400_Resource_Exhaustion__getCookies_Servlet_for_loop_71b()).goodB2GSink((Object)count , 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);
    }
}
