/* TEMPLATE GENERATED TESTCASE FILE
Filename: CWE89_SQL_Injection__listen_tcp_prepareStatement_22b.java
Label Definition File: CWE89_SQL_Injection.label.xml
Template File: sources-sinks-22b.tmpl.java
*/
/*
 * @description
 * CWE: 89 SQL Injection
 * BadSource: listen_tcp Read data using a listening tcp connection
 * GoodSource: A hardcoded string
 * Sinks: prepareStatement
 *    GoodSink: Use prepared statement and execute (properly)
 *    BadSink : data concatenated into SQL statement used in prepareStatement() call, which could result in SQL Injection
 * Flow Variant: 22 Control flow: Flow controlled by value of a public static variable. Sink functions are in a separate file from sources.
 *
 * */






import java.sql.*;

import java.util.logging.Level;

public class CWE89_SQL_Injection__listen_tcp_prepareStatement_22b
{
    public void badSink(String data ) throws Throwable
    {
        if (CWE89_SQL_Injection__listen_tcp_prepareStatement_22a.badPublicStatic)
        {
            Connection dbConnection = null;
            PreparedStatement sqlStatement = null;
            try
            {
                /* POTENTIAL FLAW: data concatenated into SQL statement used in prepareStatement() call, which could result in SQL Injection */
                dbConnection = IO.getDBConnection();
                sqlStatement = dbConnection.prepareStatement("insert into users (status) values ('updated') where name='"+data+"'");
                Boolean result = sqlStatement.execute();
                if (result)
                {
                    IO.writeLine("Name, " + data + ", updated successfully");
                }
                else
                {
                    IO.writeLine("Unable to update records for user: " + data);
                }
            }
            catch (SQLException exceptSql)
            {
                IO.logger.log(Level.WARNING, "Error getting database connection", exceptSql);
            }
            finally
            {
                try
                {
                    if (sqlStatement != null)
                    {
                        sqlStatement.close();
                    }
                }
                catch (SQLException exceptSql)
                {
                    IO.logger.log(Level.WARNING, "Error closing PreparedStatement", exceptSql);
                }

                try
                {
                    if (dbConnection != null)
                    {
                        dbConnection.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 = null;
        }
    }

    /* goodB2G1() - use badsource and goodsink by setting the static variable to false instead of true */
    public void goodB2G1Sink(String data ) throws Throwable
    {
        if (CWE89_SQL_Injection__listen_tcp_prepareStatement_22a.goodB2G1PublicStatic)
        {
            /* INCIDENTAL: CWE 561 Dead Code, the code below will never run
             * but ensure data is inititialized before the Sink to avoid compiler errors */
            data = null;
        }
        else
        {

            Connection dbConnection = null;
            PreparedStatement sqlStatement = null;

            try
            {
                /* FIX: Use prepared statement and execute (properly) */
                dbConnection = IO.getDBConnection();
                sqlStatement = dbConnection.prepareStatement("insert into users (status) values ('updated') where name=?");
                sqlStatement.setString(1, data);

                Boolean result = sqlStatement.execute();

                if (result)
                {
                    IO.writeLine("Name, " + data + ", updated successfully");
                }
                else
                {
                    IO.writeLine("Unable to update records for user: " + data);
                }
            }
            catch (SQLException exceptSql)
            {
                IO.logger.log(Level.WARNING, "Error getting database connection", exceptSql);
            }
            finally
            {
                try
                {
                    if (sqlStatement != null)
                    {
                        sqlStatement.close();
                    }
                }
                catch (SQLException exceptSql)
                {
                    IO.logger.log(Level.WARNING, "Error closing PreparedStatement", exceptSql);
                }

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

        }
    }

    /* goodB2G2() - use badsource and goodsink by reversing the blocks in the if in the sink function */
    public void goodB2G2Sink(String data ) throws Throwable
    {
        if (CWE89_SQL_Injection__listen_tcp_prepareStatement_22a.goodB2G2PublicStatic)
        {
            Connection dbConnection = null;
            PreparedStatement sqlStatement = null;
            try
            {
                /* FIX: Use prepared statement and execute (properly) */
                dbConnection = IO.getDBConnection();
                sqlStatement = dbConnection.prepareStatement("insert into users (status) values ('updated') where name=?");
                sqlStatement.setString(1, data);
                Boolean result = sqlStatement.execute();
                if (result)
                {
                    IO.writeLine("Name, " + data + ", updated successfully");
                }
                else
                {
                    IO.writeLine("Unable to update records for user: " + data);
                }
            }
            catch (SQLException exceptSql)
            {
                IO.logger.log(Level.WARNING, "Error getting database connection", exceptSql);
            }
            finally
            {
                try
                {
                    if (sqlStatement != null)
                    {
                        sqlStatement.close();
                    }
                }
                catch (SQLException exceptSql)
                {
                    IO.logger.log(Level.WARNING, "Error closing PreparedStatement", exceptSql);
                }

                try
                {
                    if (dbConnection != null)
                    {
                        dbConnection.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 = null;
        }
    }

    /* goodG2B() - use goodsource and badsink */
    public void goodG2BSink(String data ) throws Throwable
    {
        if (CWE89_SQL_Injection__listen_tcp_prepareStatement_22a.goodG2BPublicStatic)
        {
            Connection dbConnection = null;
            PreparedStatement sqlStatement = null;
            try
            {
                /* POTENTIAL FLAW: data concatenated into SQL statement used in prepareStatement() call, which could result in SQL Injection */
                dbConnection = IO.getDBConnection();
                sqlStatement = dbConnection.prepareStatement("insert into users (status) values ('updated') where name='"+data+"'");
                Boolean result = sqlStatement.execute();
                if (result)
                {
                    IO.writeLine("Name, " + data + ", updated successfully");
                }
                else
                {
                    IO.writeLine("Unable to update records for user: " + data);
                }
            }
            catch (SQLException exceptSql)
            {
                IO.logger.log(Level.WARNING, "Error getting database connection", exceptSql);
            }
            finally
            {
                try
                {
                    if (sqlStatement != null)
                    {
                        sqlStatement.close();
                    }
                }
                catch (SQLException exceptSql)
                {
                    IO.logger.log(Level.WARNING, "Error closing PreparedStatement", exceptSql);
                }

                try
                {
                    if (dbConnection != null)
                    {
                        dbConnection.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 = null;
        }
    }
}
