/* TEMPLATE GENERATED TESTCASE FILE
Filename: CWE81_XSS_Error_Message__Servlet_PropertiesFile_15.java
Label Definition File: CWE81_XSS_Error_Message__Servlet.label.xml
Template File: sources-sink-15.tmpl.java
*/
/*
* @description
* CWE: 81 Cross Site Scripting (XSS) in Error Message
* BadSource: PropertiesFile Read data from a .properties file (in property named data)
* GoodSource: A hardcoded string
* BadSink: sendErrorServlet XSS in sendError
* Flow Variant: 15 Control flow: switch(6)
*
* */





import javax.servlet.http.*;

import java.util.Properties;

import java.io.FileInputStream;
import java.io.IOException;

import java.util.logging.Level;

public class CWE81_XSS_Error_Message__Servlet_PropertiesFile_15 extends AbstractTestCaseServlet
{
    /* uses badsource and badsink */
    public void bad(HttpServletRequest request, HttpServletResponse response) throws Throwable
    {
        String data = null;

        switch (6)
        {
        case 6:
            data = ""; /* Initialize data */
            /* retrieve the property */
            {
                Properties properties = new Properties();
                FileInputStream streamFileInput = null;
                try
                {
                    streamFileInput = new FileInputStream("../common/config.properties");
                    properties.load(streamFileInput);
                    /* POTENTIAL FLAW: Read data from a .properties file */
                    data = properties.getProperty("data");
                }
                catch (IOException exceptIO)
                {
                    IO.logger.log(Level.WARNING, "Error with stream reading", exceptIO);
                }
                finally
                {
                    /* Close stream reading object */
                    try
                    {
                        if (streamFileInput != null)
                        {
                            streamFileInput.close();
                        }
                    }
                    catch (IOException exceptIO)
                    {
                        IO.logger.log(Level.WARNING, "Error closing FileInputStream", exceptIO);
                    }
                }
            }
            break;
        default:
            /* 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;
            break;
        }

        if (data != null)
        {
            /* POTENTIAL FLAW: script code (e.g. id=<script>alert('xss')</script>) is sent to the client;
            * The built-in J2EE server automatically does some HTML entity encoding.
            * Therefore, to test this, change response.sendError to response.getWriter().println and remove the 404,
            */
            response.sendError(404, "<br>bad() - Parameter name has value " + data);
        }

    }

    /* goodG2B1() - use goodsource and badsink by changing the  switch to switch(5) */
    private void goodG2B1(HttpServletRequest request, HttpServletResponse response) throws Throwable
    {
        String data = null;

        switch (5)
        {
        case 6:
            /* 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;
            break;
        default:
            /* FIX: Use a hardcoded string */
            data = "foo";
            break;
        }

        if (data != null)
        {
            /* POTENTIAL FLAW: script code (e.g. id=<script>alert('xss')</script>) is sent to the client;
            * The built-in J2EE server automatically does some HTML entity encoding.
            * Therefore, to test this, change response.sendError to response.getWriter().println and remove the 404,
            */
            response.sendError(404, "<br>bad() - Parameter name has value " + data);
        }

    }

    /* goodG2B2() - use goodsource and badsink by reversing the blocks in the switch  */
    private void goodG2B2(HttpServletRequest request, HttpServletResponse response) throws Throwable
    {
        String data = null;

        switch (6)
        {
        case 6:
            /* FIX: Use a hardcoded string */
            data = "foo";
            break;
        default:
            /* 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;
            break;
        }

        if (data != null)
        {
            /* POTENTIAL FLAW: script code (e.g. id=<script>alert('xss')</script>) is sent to the client;
            * The built-in J2EE server automatically does some HTML entity encoding.
            * Therefore, to test this, change response.sendError to response.getWriter().println and remove the 404,
            */
            response.sendError(404, "<br>bad() - Parameter name has value " + data);
        }

    }

    public void good(HttpServletRequest request, HttpServletResponse response) throws Throwable
    {
        goodG2B1(request, response);
        goodG2B2(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);
    }
}
