/* TEMPLATE GENERATED TESTCASE FILE
Filename: CWE15_External_Control_of_System_or_Configuration_Setting__getParameter_Servlet_16.java
Label Definition File: CWE15_External_Control_of_System_or_Configuration_Setting.label.xml
Template File: sources-sink-16.tmpl.java
*/
/*
* @description
* CWE: 15 External Control of System or Configuration Setting
* BadSource: getParameter_Servlet Read data from a querystring using getParameter()
* GoodSource: A hardcoded string
* BadSink:  Set the catalog name with the value of data
* Flow Variant: 16 Control flow: while(true)
*
* */





import javax.servlet.http.*;


import java.sql.*;

import java.util.logging.Level;

public class CWE15_External_Control_of_System_or_Configuration_Setting__getParameter_Servlet_16 extends AbstractTestCaseServlet
{
    /* uses badsource and badsink */
    public void bad(HttpServletRequest request, HttpServletResponse response) throws Throwable
    {
        String data;

        while (true)
        {
            /* POTENTIAL FLAW: Read data from a querystring using getParameter */
            data = request.getParameter("name");
            break;
        }

        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);
            }
        }

    }

    /* goodG2B() - use goodsource and badsink */
    private void goodG2B(HttpServletRequest request, HttpServletResponse response) throws Throwable
    {
        String data;

        while (true)
        {
            /* FIX: Use a hardcoded string */
            data = "foo";
            break;
        }

        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(HttpServletRequest request, HttpServletResponse response) throws Throwable
    {
        goodG2B(request, response);
    }

    /* 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);
    }
}
