/* TEMPLATE GENERATED TESTCASE FILE
Filename: CWE89_SQL_Injection__listen_tcp_executeBatch_21.java
Label Definition File: CWE89_SQL_Injection.label.xml
Template File: sources-sinks-21.tmpl.java
*/
/*
 * @description
 * CWE: 89 SQL Injection
 * BadSource: listen_tcp Read data using a listening tcp connection
 * GoodSource: A hardcoded string
 * Sinks: executeBatch
 *    GoodSink: Use prepared statement and executeBatch (properly)
 *    BadSink : data concatenated into SQL statement used in executeBatch(), which could result in SQL Injection
 * Flow Variant: 21 Control flow: Flow controlled by value of a private variable. All functions contained in one file.
 *
 * */






import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;
import java.net.Socket;
import java.net.ServerSocket;

import java.util.logging.Level;

import java.sql.*;


public class CWE89_SQL_Injection__listen_tcp_executeBatch_21 extends AbstractTestCase
{
    /* The variable below is used to drive control flow in the sink function */
    private boolean badPrivate = false;

    public void bad() throws Throwable
    {
        String data;

        data = ""; /* Initialize data */

        /* Read data using a listening tcp connection */
        {
            ServerSocket listener = null;
            Socket socket = null;
            BufferedReader readerBuffered = null;
            InputStreamReader readerInputStream = null;

            /* Read data using a listening tcp connection */
            try
            {
                listener = new ServerSocket(39543);
                socket = listener.accept();

                /* read input from socket */

                readerInputStream = new InputStreamReader(socket.getInputStream(), "UTF-8");
                readerBuffered = new BufferedReader(readerInputStream);

                /* POTENTIAL FLAW: Read data using a listening tcp connection */
                data = readerBuffered.readLine();
            }
            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);
                }

                /* Close socket objects */
                try
                {
                    if (socket != null)
                    {
                        socket.close();
                    }
                }
                catch (IOException exceptIO)
                {
                    IO.logger.log(Level.WARNING, "Error closing Socket", exceptIO);
                }

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

        badPrivate = true;
        badSink(data );
    }

    private void badSink(String data ) throws Throwable
    {
        if (badPrivate)
        {
            if (data != null)
            {
                String names[] = data.split("-");
                int successCount = 0;
                Connection dbConnection = null;
                Statement sqlStatement = null;
                try
                {
                    dbConnection = IO.getDBConnection();
                    sqlStatement = dbConnection.createStatement();
                    for (int i = 0; i < names.length; i++)
                    {
                        /* POTENTIAL FLAW: data concatenated into SQL statement used in executeBatch(), which could result in SQL Injection */
                        sqlStatement.addBatch("update users set hitcount=hitcount+1 where name='" + names[i] + "'");
                    }
                    int resultsArray[] = sqlStatement.executeBatch();
                    for (int i = 0; i < names.length; i++)
                    {
                        if (resultsArray[i] > 0)
                        {
                            successCount++;
                        }
                    }
                    IO.writeLine("Succeeded in " + successCount + " out of " + names.length + " queries.");
                }
                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 Statament", exceptSql);
                    }

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

    /* The variables below are used to drive control flow in the sink functions. */
    private boolean goodB2G1Private = false;
    private boolean goodB2G2Private = false;
    private boolean goodG2BPrivate = false;

    public void good() throws Throwable
    {
        goodB2G1();
        goodB2G2();
        goodG2B();
    }

    /* goodB2G1() - use BadSource and GoodSink by setting the variable to false instead of true */
    private void goodB2G1() throws Throwable
    {
        String data;

        data = ""; /* Initialize data */

        /* Read data using a listening tcp connection */
        {
            ServerSocket listener = null;
            Socket socket = null;
            BufferedReader readerBuffered = null;
            InputStreamReader readerInputStream = null;

            /* Read data using a listening tcp connection */
            try
            {
                listener = new ServerSocket(39543);
                socket = listener.accept();

                /* read input from socket */

                readerInputStream = new InputStreamReader(socket.getInputStream(), "UTF-8");
                readerBuffered = new BufferedReader(readerInputStream);

                /* POTENTIAL FLAW: Read data using a listening tcp connection */
                data = readerBuffered.readLine();
            }
            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);
                }

                /* Close socket objects */
                try
                {
                    if (socket != null)
                    {
                        socket.close();
                    }
                }
                catch (IOException exceptIO)
                {
                    IO.logger.log(Level.WARNING, "Error closing Socket", exceptIO);
                }

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

        goodB2G1Private = false;
        goodB2G1Sink(data );
    }

    private void goodB2G1Sink(String data ) throws Throwable
    {
        if (goodB2G1Private)
        {
            /* INCIDENTAL: CWE 561 Dead Code, the code below will never run */
            IO.writeLine("Benign, fixed string");
        }
        else
        {

            if (data != null)
            {
                String names[] = data.split("-");
                int successCount = 0;
                Connection dbConnection = null;
                PreparedStatement sqlStatement = null;
                try
                {
                    /* FIX: Use prepared statement and executeBatch (properly) */
                    dbConnection = IO.getDBConnection();
                    sqlStatement = dbConnection.prepareStatement("update users set hitcount=hitcount+1 where name=?");
                    for (int i = 0; i < names.length; i++)
                    {
                        sqlStatement.setString(1, names[i]);
                        sqlStatement.addBatch();
                    }
                    int resultsArray[] = sqlStatement.executeBatch();
                    for (int i = 0; i < names.length; i++)
                    {
                        if (resultsArray[i] > 0)
                        {
                            successCount++;
                        }
                    }
                    IO.writeLine("Succeeded in " + successCount + " out of " + names.length + " queries.");
                }
                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 */
    private void goodB2G2() throws Throwable
    {
        String data;

        data = ""; /* Initialize data */

        /* Read data using a listening tcp connection */
        {
            ServerSocket listener = null;
            Socket socket = null;
            BufferedReader readerBuffered = null;
            InputStreamReader readerInputStream = null;

            /* Read data using a listening tcp connection */
            try
            {
                listener = new ServerSocket(39543);
                socket = listener.accept();

                /* read input from socket */

                readerInputStream = new InputStreamReader(socket.getInputStream(), "UTF-8");
                readerBuffered = new BufferedReader(readerInputStream);

                /* POTENTIAL FLAW: Read data using a listening tcp connection */
                data = readerBuffered.readLine();
            }
            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);
                }

                /* Close socket objects */
                try
                {
                    if (socket != null)
                    {
                        socket.close();
                    }
                }
                catch (IOException exceptIO)
                {
                    IO.logger.log(Level.WARNING, "Error closing Socket", exceptIO);
                }

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

        goodB2G2Private = true;
        goodB2G2Sink(data );
    }

    private void goodB2G2Sink(String data ) throws Throwable
    {
        if (goodB2G2Private)
        {
            if (data != null)
            {
                String names[] = data.split("-");
                int successCount = 0;
                Connection dbConnection = null;
                PreparedStatement sqlStatement = null;
                try
                {
                    /* FIX: Use prepared statement and executeBatch (properly) */
                    dbConnection = IO.getDBConnection();
                    sqlStatement = dbConnection.prepareStatement("update users set hitcount=hitcount+1 where name=?");
                    for (int i = 0; i < names.length; i++)
                    {
                        sqlStatement.setString(1, names[i]);
                        sqlStatement.addBatch();
                    }
                    int resultsArray[] = sqlStatement.executeBatch();
                    for (int i = 0; i < names.length; i++)
                    {
                        if (resultsArray[i] > 0)
                        {
                            successCount++;
                        }
                    }
                    IO.writeLine("Succeeded in " + successCount + " out of " + names.length + " queries.");
                }
                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);
                    }
                }
            }
        }
    }

    /* goodG2B() - use GoodSource and BadSink */
    private void goodG2B() throws Throwable
    {
        String data;

        /* FIX: Use a hardcoded string */
        data = "foo";

        goodG2BPrivate = true;
        goodG2BSink(data );
    }

    private void goodG2BSink(String data ) throws Throwable
    {
        if (goodG2BPrivate)
        {
            if (data != null)
            {
                String names[] = data.split("-");
                int successCount = 0;
                Connection dbConnection = null;
                Statement sqlStatement = null;
                try
                {
                    dbConnection = IO.getDBConnection();
                    sqlStatement = dbConnection.createStatement();
                    for (int i = 0; i < names.length; i++)
                    {
                        /* POTENTIAL FLAW: data concatenated into SQL statement used in executeBatch(), which could result in SQL Injection */
                        sqlStatement.addBatch("update users set hitcount=hitcount+1 where name='" + names[i] + "'");
                    }
                    int resultsArray[] = sqlStatement.executeBatch();
                    for (int i = 0; i < names.length; i++)
                    {
                        if (resultsArray[i] > 0)
                        {
                            successCount++;
                        }
                    }
                    IO.writeLine("Succeeded in " + successCount + " out of " + names.length + " queries.");
                }
                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 Statament", exceptSql);
                    }

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

    /* 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);
    }
}
