/* TEMPLATE GENERATED TESTCASE FILE
Filename: CWE15_External_Control_of_System_or_Configuration_Setting__listen_tcp_05.java
Label Definition File: CWE15_External_Control_of_System_or_Configuration_Setting.label.xml
Template File: sources-sink-05.tmpl.java
*/
/*
* @description
* CWE: 15 External Control of System or Configuration Setting
* BadSource: listen_tcp Read data using a listening tcp connection
* GoodSource: A hardcoded string
* BadSink:  Set the catalog name with the value of data
* Flow Variant: 05 Control flow: if(privateTrue) and if(privateFalse)
*
* */







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 CWE15_External_Control_of_System_or_Configuration_Setting__listen_tcp_05 extends AbstractTestCase
{
    /* The two variables below are not defined as "final", but are never
     * assigned any other value, so a tool should be able to identify that
     * reads of these will always return their initialized values.
     */
    private boolean privateTrue = true;
    private boolean privateFalse = false;

    /* uses badsource and badsink */
    public void bad() throws Throwable
    {
        String data;
        if (privateTrue)
        {
            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);
                    }
                }
            }
        }
        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;
        }

        Connection dbConnection = null;

        try
        {
            dbConnection = IO.getDBConnection();

            /* POTENTIAL FLAW: Set the catalog name with the value of data
             * allowing a nonexistent catalog name or unauthorized access to a portion of the DB */
            dbConnection.setCatalog(data);
        }
        catch (SQLException exceptSql)
        {
            IO.logger.log(Level.WARNING, "Error getting database connection", exceptSql);
        }
        finally
        {
            try
            {
                if (dbConnection != null)
                {
                    dbConnection.close();
                }
            }
            catch (SQLException exceptSql)
            {
                IO.logger.log(Level.WARNING, "Error closing Connection", exceptSql);
            }
        }

    }

    /* goodG2B1() - use goodsource and badsink by changing privateTrue to privateFalse */
    private void goodG2B1() throws Throwable
    {
        String data;
        if (privateFalse)
        {
            /* 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
        {

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

        }

        Connection dbConnection = null;

        try
        {
            dbConnection = IO.getDBConnection();

            /* POTENTIAL FLAW: Set the catalog name with the value of data
             * allowing a nonexistent catalog name or unauthorized access to a portion of the DB */
            dbConnection.setCatalog(data);
        }
        catch (SQLException exceptSql)
        {
            IO.logger.log(Level.WARNING, "Error getting database connection", exceptSql);
        }
        finally
        {
            try
            {
                if (dbConnection != null)
                {
                    dbConnection.close();
                }
            }
            catch (SQLException exceptSql)
            {
                IO.logger.log(Level.WARNING, "Error closing Connection", exceptSql);
            }
        }

    }

    /* goodG2B2() - use goodsource and badsink by reversing statements in if */
    private void goodG2B2() throws Throwable
    {
        String data;
        if (privateTrue)
        {
            /* FIX: Use a hardcoded string */
            data = "foo";
        }
        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;
        }

        Connection dbConnection = null;

        try
        {
            dbConnection = IO.getDBConnection();

            /* POTENTIAL FLAW: Set the catalog name with the value of data
             * allowing a nonexistent catalog name or unauthorized access to a portion of the DB */
            dbConnection.setCatalog(data);
        }
        catch (SQLException exceptSql)
        {
            IO.logger.log(Level.WARNING, "Error getting database connection", exceptSql);
        }
        finally
        {
            try
            {
                if (dbConnection != null)
                {
                    dbConnection.close();
                }
            }
            catch (SQLException exceptSql)
            {
                IO.logger.log(Level.WARNING, "Error closing Connection", exceptSql);
            }
        }

    }

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

    /* 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);
    }
}
