/* TEMPLATE GENERATED TESTCASE FILE
Filename: CWE190_Integer_Overflow__int_getCookies_Servlet_preinc_66a.java
Label Definition File: CWE190_Integer_Overflow__int.label.xml
Template File: sources-sinks-66a.tmpl.java
*/
/*
 * @description
 * CWE: 190 Integer Overflow
 * BadSource: getCookies_Servlet Read data from the first cookie using getCookies()
 * GoodSource: A hardcoded non-zero, non-min, non-max, even number
 * Sinks: increment
 *    GoodSink: Ensure there will not be an overflow before incrementing data
 *    BadSink : Increment data, which can cause an overflow
 * Flow Variant: 66 Data flow: data passed in an array from one method to another in different source files in the same package
 *
 * */

package testcases.CWE190_Integer_Overflow.s07;
import testcasesupport.*;

import javax.servlet.http.*;


import java.util.logging.Level;

public class CWE190_Integer_Overflow__int_getCookies_Servlet_preinc_66a extends AbstractTestCaseServlet
{
    public void bad(HttpServletRequest request, HttpServletResponse response) throws Throwable
    {
        int data;

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

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

        int[] dataArray = new int[5];
        dataArray[2] = data;
        (new CWE190_Integer_Overflow__int_getCookies_Servlet_preinc_66b()).badSink(dataArray , 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 data;

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

        int[] dataArray = new int[5];
        dataArray[2] = data;
        (new CWE190_Integer_Overflow__int_getCookies_Servlet_preinc_66b()).goodG2BSink(dataArray , request, response );
    }

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

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

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

        int[] dataArray = new int[5];
        dataArray[2] = data;
        (new CWE190_Integer_Overflow__int_getCookies_Servlet_preinc_66b()).goodB2GSink(dataArray , 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);
    }

}
