/* TEMPLATE GENERATED TESTCASE FILE
Filename: CWE643_Xpath_Injection__PropertiesFile_17.java
Label Definition File: CWE643_Xpath_Injection.label.xml
Template File: sources-sinks-17.tmpl.java
*/
/*
* @description
* CWE: 643 Xpath Injection
* BadSource: PropertiesFile Read data from a .properties file (in property named data)
* GoodSource: A hardcoded string
* Sinks:
*    GoodSink: validate input through StringEscapeUtils
*    BadSink : user input is used without validate
* Flow Variant: 17 Control flow: for loops
*
* */







import java.util.Properties;

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

import java.util.logging.Level;

import javax.xml.xpath.*;

import org.xml.sax.InputSource;

import org.apache.commons.lang.StringEscapeUtils;

public class CWE643_Xpath_Injection__PropertiesFile_17 extends AbstractTestCase
{
    public void bad() throws Throwable
    {
        String data;

        /* We need to have one source outside of a for loop in order
         * to prevent the Java compiler from generating an error because
         * data is uninitialized
         */

        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);
                }
            }
        }

        for (int j = 0; j < 1; j++)
        {
            String xmlFile = null;
            if(System.getProperty("os.name").toLowerCase().indexOf("win") >= 0)
            {
                /* running on Windows */
                xmlFile = "\\src\\testcases\\CWE643_Xpath Injection\\CWE643_Xpath_Injection__Helper.xml";
            }
            else
            {
                /* running on non-Windows */
                xmlFile = "./src/testcases/CWE643_Xpath Injection/CWE643_Xpath_Injection__Helper.xml";
            }
            if (data != null)
            {
                /* assume username||password as source */
                String [] tokens = data.split("||");
                if (tokens.length < 2)
                {
                    return;
                }
                String username = tokens[0];
                String password = tokens[1];
                /* build xpath */
                XPath xPath = XPathFactory.newInstance().newXPath();
                InputSource inputXml = new InputSource(xmlFile);
                /* INCIDENTAL: CWE180 Incorrect Behavior Order: Validate Before Canonicalize
                 *     The user input should be canonicalized before validation. */
                /* POTENTIAL FLAW: user input is used without validate */
                String query = "//users/user[name/text()='" + username +
                               "' and pass/text()='" + password + "']" +
                               "/secret/text()";
                String secret = (String)xPath.evaluate(query, inputXml, XPathConstants.STRING);
            }
        }
    }

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

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

        for (int j = 0; j < 1; j++)
        {
            String xmlFile = null;
            if(System.getProperty("os.name").toLowerCase().indexOf("win") >= 0)
            {
                /* running on Windows */
                xmlFile = "\\src\\testcases\\CWE643_Xpath Injection\\CWE643_Xpath_Injection__Helper.xml";
            }
            else
            {
                /* running on non-Windows */
                xmlFile = "./src/testcases/CWE643_Xpath Injection/CWE643_Xpath_Injection__Helper.xml";
            }
            if (data != null)
            {
                /* assume username||password as source */
                String [] tokens = data.split("||");
                if (tokens.length < 2)
                {
                    return;
                }
                String username = tokens[0];
                String password = tokens[1];
                /* build xpath */
                XPath xPath = XPathFactory.newInstance().newXPath();
                InputSource inputXml = new InputSource(xmlFile);
                /* INCIDENTAL: CWE180 Incorrect Behavior Order: Validate Before Canonicalize
                 *     The user input should be canonicalized before validation. */
                /* POTENTIAL FLAW: user input is used without validate */
                String query = "//users/user[name/text()='" + username +
                "' and pass/text()='" + password + "']" +
                "/secret/text()";
                String secret = (String)xPath.evaluate(query, inputXml, XPathConstants.STRING);
            }
        }
    }

    /* goodB2G() - use badsource and goodsink*/
    private void goodB2G() throws Throwable
    {
        String data;

        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);
                }
            }
        }

        for (int k = 0; k < 1; k++)
        {
            String xmlFile = null;
            if(System.getProperty("os.name").toLowerCase().indexOf("win") >= 0)
            {
                /* running on Windows */
                xmlFile = "\\src\\testcases\\CWE643_Xpath Injection\\CWE643_Xpath_Injection__Helper.xml";
            }
            else
            {
                /* running on non-Windows */
                xmlFile = "./src/testcases/CWE643_Xpath Injection/CWE643_Xpath_Injection__Helper.xml";
            }
            if (data != null)
            {
                /* assume username||password as source */
                String [] tokens = data.split("||");
                if( tokens.length < 2 )
                {
                    return;
                }
                /* FIX: validate input using StringEscapeUtils */
                String username = StringEscapeUtils.escapeXml(tokens[0]);
                String password = StringEscapeUtils.escapeXml(tokens[1]);
                /* build xpath */
                XPath xPath = XPathFactory.newInstance().newXPath();
                InputSource inputXml = new InputSource(xmlFile);
                String query = "//users/user[name/text()='" + username +
                               "' and pass/text()='" + password + "']" +
                               "/secret/text()";
                String secret = (String)xPath.evaluate(query, inputXml, XPathConstants.STRING);
            }
        }
    }

    public void good() throws Throwable
    {
        goodG2B();
        goodB2G();
    }

    /* 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);
    }
}
