/* TEMPLATE GENERATED TESTCASE FILE
Filename: CWE190_Integer_Overflow__int_File_postinc_52a.java
Label Definition File: CWE190_Integer_Overflow__int.label.xml
Template File: sources-sinks-52a.tmpl.java
*/
/*
 * @description
 * CWE: 190 Integer Overflow
 * BadSource: File Read data from file (named c:\data.txt)
 * 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: 52 Data flow: data passed as an argument from one method to another to another in three different classes in the same package
 *
 * */

package testcases.CWE190_Integer_Overflow.s06;
import testcasesupport.*;

import javax.servlet.http.*;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.FileInputStream;
import java.io.File;
import java.io.IOException;

import java.util.logging.Level;

public class CWE190_Integer_Overflow__int_File_postinc_52a extends AbstractTestCase
{
    public void bad() throws Throwable
    {
        int data;

        data = Integer.MIN_VALUE; /* Initialize data */

        {
            File file = new File("C:\\data.txt");
            FileInputStream streamFileInput = null;
            InputStreamReader readerInputStream = null;
            BufferedReader readerBuffered = null;

            try
            {
                /* read string from file into data */
                streamFileInput = new FileInputStream(file);
                readerInputStream = new InputStreamReader(streamFileInput, "UTF-8");
                readerBuffered = new BufferedReader(readerInputStream);

                /* POTENTIAL FLAW: Read data from a file */
                /* This will be reading the first "line" of the file, which
                 * could be very long if there are little or no newlines in the file */
                String stringNumber = readerBuffered.readLine();
                if (stringNumber != null) /* avoid NPD incidental warnings */
                {
                    try
                    {
                        data = Integer.parseInt(stringNumber.trim());
                    }
                    catch(NumberFormatException exceptNumberFormat)
                    {
                        IO.logger.log(Level.WARNING, "Number format exception parsing data from string", exceptNumberFormat);
                    }
                }
            }
            catch (IOException exceptIO)
            {
                IO.logger.log(Level.WARNING, "Error with stream reading", exceptIO);
            }
            finally
            {
                /* Close stream reading objects */
                try
                {
                    if (readerBuffered != null)
                    {
                        readerBuffered.close();
                    }
                }
                catch (IOException exceptIO)
                {
                    IO.logger.log(Level.WARNING, "Error closing BufferedReader", exceptIO);
                }

                try
                {
                    if (readerInputStream != null)
                    {
                        readerInputStream.close();
                    }
                }
                catch (IOException exceptIO)
                {
                    IO.logger.log(Level.WARNING, "Error closing InputStreamReader", exceptIO);
                }

                try
                {
                    if (streamFileInput != null)
                    {
                        streamFileInput.close();
                    }
                }
                catch (IOException exceptIO)
                {
                    IO.logger.log(Level.WARNING, "Error closing FileInputStream", exceptIO);
                }
            }
        }

        (new CWE190_Integer_Overflow__int_File_postinc_52b()).badSink(data );
    }

    public void good() throws Throwable
    {
        goodG2B();
        goodB2G();
    }

    /* goodG2B() - use goodsource and badsink */
    private void goodG2B() 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;

        (new CWE190_Integer_Overflow__int_File_postinc_52b()).goodG2BSink(data );
    }

    /* goodB2G() - use badsource and goodsink */
    private void goodB2G() throws Throwable
    {
        int data;

        data = Integer.MIN_VALUE; /* Initialize data */

        {
            File file = new File("C:\\data.txt");
            FileInputStream streamFileInput = null;
            InputStreamReader readerInputStream = null;
            BufferedReader readerBuffered = null;

            try
            {
                /* read string from file into data */
                streamFileInput = new FileInputStream(file);
                readerInputStream = new InputStreamReader(streamFileInput, "UTF-8");
                readerBuffered = new BufferedReader(readerInputStream);

                /* POTENTIAL FLAW: Read data from a file */
                /* This will be reading the first "line" of the file, which
                 * could be very long if there are little or no newlines in the file */
                String stringNumber = readerBuffered.readLine();
                if (stringNumber != null) /* avoid NPD incidental warnings */
                {
                    try
                    {
                        data = Integer.parseInt(stringNumber.trim());
                    }
                    catch(NumberFormatException exceptNumberFormat)
                    {
                        IO.logger.log(Level.WARNING, "Number format exception parsing data from string", exceptNumberFormat);
                    }
                }
            }
            catch (IOException exceptIO)
            {
                IO.logger.log(Level.WARNING, "Error with stream reading", exceptIO);
            }
            finally
            {
                /* Close stream reading objects */
                try
                {
                    if (readerBuffered != null)
                    {
                        readerBuffered.close();
                    }
                }
                catch (IOException exceptIO)
                {
                    IO.logger.log(Level.WARNING, "Error closing BufferedReader", exceptIO);
                }

                try
                {
                    if (readerInputStream != null)
                    {
                        readerInputStream.close();
                    }
                }
                catch (IOException exceptIO)
                {
                    IO.logger.log(Level.WARNING, "Error closing InputStreamReader", exceptIO);
                }

                try
                {
                    if (streamFileInput != null)
                    {
                        streamFileInput.close();
                    }
                }
                catch (IOException exceptIO)
                {
                    IO.logger.log(Level.WARNING, "Error closing FileInputStream", exceptIO);
                }
            }
        }

        (new CWE190_Integer_Overflow__int_File_postinc_52b()).goodB2GSink(data );
    }

    /* 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);
    }
}
