/* TEMPLATE GENERATED TESTCASE FILE
Filename: CWE369_Divide_by_Zero__float_database_divide_10.java
Label Definition File: CWE369_Divide_by_Zero__float.label.xml
Template File: sources-sinks-10.tmpl.java
*/
/*
* @description
* CWE: 369 Divide by zero
* BadSource: database Read data from a database
* GoodSource: A hardcoded non-zero number (two)
* Sinks: divide
*    GoodSink: Check for zero before dividing
*    BadSink : Dividing by a value that may be zero
* Flow Variant: 10 Control flow: if(IO.staticTrue) and if(IO.staticFalse)
*
* */




import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

import java.util.logging.Level;

public class CWE369_Divide_by_Zero__float_database_divide_10 extends AbstractTestCase
{
    public void bad() throws Throwable
    {
        float data;
        if (IO.staticTrue)
        {
            data = -1.0f; /* Initialize data */
            /* Read data from a database */
            {
                Connection connection = null;
                PreparedStatement preparedStatement = null;
                ResultSet resultSet = null;
                try
                {
                    /* setup the connection */
                    connection = IO.getDBConnection();
                    /* prepare and execute a (hardcoded) query */
                    preparedStatement = connection.prepareStatement("select name from users where id=0");
                    resultSet = preparedStatement.executeQuery();
                    /* POTENTIAL FLAW: Read data from a database query resultset */
                    String stringNumber = resultSet.getString(1);
                    if (stringNumber != null)
                    {
                        try
                        {
                            data = Float.parseFloat(stringNumber.trim());
                        }
                        catch (NumberFormatException exceptNumberFormat)
                        {
                            IO.logger.log(Level.WARNING, "Number format exception parsing data from string", exceptNumberFormat);
                        }
                    }
                }
                catch (SQLException exceptSql)
                {
                    IO.logger.log(Level.WARNING, "Error with SQL statement", exceptSql);
                }
                finally
                {
                    /* Close database objects */
                    try
                    {
                        if (resultSet != null)
                        {
                            resultSet.close();
                        }
                    }
                    catch (SQLException exceptSql)
                    {
                        IO.logger.log(Level.WARNING, "Error closing ResultSet", exceptSql);
                    }

                    try
                    {
                        if (preparedStatement != null)
                        {
                            preparedStatement.close();
                        }
                    }
                    catch (SQLException exceptSql)
                    {
                        IO.logger.log(Level.WARNING, "Error closing PreparedStatement", exceptSql);
                    }

                    try
                    {
                        if (connection != null)
                        {
                            connection.close();
                        }
                    }
                    catch (SQLException exceptSql)
                    {
                        IO.logger.log(Level.WARNING, "Error closing Connection", exceptSql);
                    }
                }
            }
        }
        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 = 0.0f;
        }

        if (IO.staticTrue)
        {
            /* POTENTIAL FLAW: Possibly divide by zero */
            int result = (int)(100.0 / data);
            IO.writeLine(result);
        }
    }

    /* goodG2B1() - use goodsource and badsink by changing first IO.staticTrue to IO.staticFalse */
    private void goodG2B1() throws Throwable
    {
        float data;
        if (IO.staticFalse)
        {
            /* INCIDENTAL: CWE 561 Dead Code, the code below will never run
             * but ensure data is inititialized before the Sink to avoid compiler errors */
            data = 0.0f;
        }
        else
        {

            /* FIX: Use a hardcoded number that won't a divide by zero */
            data = 2.0f;

        }

        if (IO.staticTrue)
        {
            /* POTENTIAL FLAW: Possibly divide by zero */
            int result = (int)(100.0 / data);
            IO.writeLine(result);
        }
    }

    /* goodG2B2() - use goodsource and badsink by reversing statements in first if */
    private void goodG2B2() throws Throwable
    {
        float data;
        if (IO.staticTrue)
        {
            /* FIX: Use a hardcoded number that won't a divide by zero */
            data = 2.0f;
        }
        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 = 0.0f;
        }

        if (IO.staticTrue)
        {
            /* POTENTIAL FLAW: Possibly divide by zero */
            int result = (int)(100.0 / data);
            IO.writeLine(result);
        }
    }

    /* goodB2G1() - use badsource and goodsink by changing second IO.staticTrue to IO.staticFalse */
    private void goodB2G1() throws Throwable
    {
        float data;
        if (IO.staticTrue)
        {
            data = -1.0f; /* Initialize data */
            /* Read data from a database */
            {
                Connection connection = null;
                PreparedStatement preparedStatement = null;
                ResultSet resultSet = null;
                try
                {
                    /* setup the connection */
                    connection = IO.getDBConnection();
                    /* prepare and execute a (hardcoded) query */
                    preparedStatement = connection.prepareStatement("select name from users where id=0");
                    resultSet = preparedStatement.executeQuery();
                    /* POTENTIAL FLAW: Read data from a database query resultset */
                    String stringNumber = resultSet.getString(1);
                    if (stringNumber != null)
                    {
                        try
                        {
                            data = Float.parseFloat(stringNumber.trim());
                        }
                        catch (NumberFormatException exceptNumberFormat)
                        {
                            IO.logger.log(Level.WARNING, "Number format exception parsing data from string", exceptNumberFormat);
                        }
                    }
                }
                catch (SQLException exceptSql)
                {
                    IO.logger.log(Level.WARNING, "Error with SQL statement", exceptSql);
                }
                finally
                {
                    /* Close database objects */
                    try
                    {
                        if (resultSet != null)
                        {
                            resultSet.close();
                        }
                    }
                    catch (SQLException exceptSql)
                    {
                        IO.logger.log(Level.WARNING, "Error closing ResultSet", exceptSql);
                    }

                    try
                    {
                        if (preparedStatement != null)
                        {
                            preparedStatement.close();
                        }
                    }
                    catch (SQLException exceptSql)
                    {
                        IO.logger.log(Level.WARNING, "Error closing PreparedStatement", exceptSql);
                    }

                    try
                    {
                        if (connection != null)
                        {
                            connection.close();
                        }
                    }
                    catch (SQLException exceptSql)
                    {
                        IO.logger.log(Level.WARNING, "Error closing Connection", exceptSql);
                    }
                }
            }
        }
        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 = 0.0f;
        }

        if (IO.staticFalse)
        {
            /* INCIDENTAL: CWE 561 Dead Code, the code below will never run */
            IO.writeLine("Benign, fixed string");
        }
        else
        {

            /* FIX: Check for value of or near zero before dividing */
            if (Math.abs(data) > 0.000001)
            {
                int result = (int)(100.0 / data);
                IO.writeLine(result);
            }
            else
            {
                IO.writeLine("This would result in a divide by zero");
            }

        }
    }

    /* goodB2G2() - use badsource and goodsink by reversing statements in second if  */
    private void goodB2G2() throws Throwable
    {
        float data;
        if (IO.staticTrue)
        {
            data = -1.0f; /* Initialize data */
            /* Read data from a database */
            {
                Connection connection = null;
                PreparedStatement preparedStatement = null;
                ResultSet resultSet = null;
                try
                {
                    /* setup the connection */
                    connection = IO.getDBConnection();
                    /* prepare and execute a (hardcoded) query */
                    preparedStatement = connection.prepareStatement("select name from users where id=0");
                    resultSet = preparedStatement.executeQuery();
                    /* POTENTIAL FLAW: Read data from a database query resultset */
                    String stringNumber = resultSet.getString(1);
                    if (stringNumber != null)
                    {
                        try
                        {
                            data = Float.parseFloat(stringNumber.trim());
                        }
                        catch (NumberFormatException exceptNumberFormat)
                        {
                            IO.logger.log(Level.WARNING, "Number format exception parsing data from string", exceptNumberFormat);
                        }
                    }
                }
                catch (SQLException exceptSql)
                {
                    IO.logger.log(Level.WARNING, "Error with SQL statement", exceptSql);
                }
                finally
                {
                    /* Close database objects */
                    try
                    {
                        if (resultSet != null)
                        {
                            resultSet.close();
                        }
                    }
                    catch (SQLException exceptSql)
                    {
                        IO.logger.log(Level.WARNING, "Error closing ResultSet", exceptSql);
                    }

                    try
                    {
                        if (preparedStatement != null)
                        {
                            preparedStatement.close();
                        }
                    }
                    catch (SQLException exceptSql)
                    {
                        IO.logger.log(Level.WARNING, "Error closing PreparedStatement", exceptSql);
                    }

                    try
                    {
                        if (connection != null)
                        {
                            connection.close();
                        }
                    }
                    catch (SQLException exceptSql)
                    {
                        IO.logger.log(Level.WARNING, "Error closing Connection", exceptSql);
                    }
                }
            }
        }
        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 = 0.0f;
        }

        if (IO.staticTrue)
        {
            /* FIX: Check for value of or near zero before dividing */
            if (Math.abs(data) > 0.000001)
            {
                int result = (int)(100.0 / data);
                IO.writeLine(result);
            }
            else
            {
                IO.writeLine("This would result in a divide by zero");
            }
        }
    }

    public void good() throws Throwable
    {
        goodG2B1();
        goodG2B2();
        goodB2G1();
        goodB2G2();
    }

    /* 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);
    }
}
