/* TEMPLATE GENERATED TESTCASE FILE
Filename: CWE256_Plaintext_Storage_of_Password__basic_31.java
Label Definition File: CWE256_Plaintext_Storage_of_Password__basic.label.xml
Template File: sources-sinks-31.tmpl.java
*/
/*
 * @description
 * CWE: 256 Plaintext Storage of a Password.  Read the password from a Properties file or a regular file.  In the good case, read the file from the console.
 * BadSource:  Read password from a .properties file (from the property named password)
 * GoodSource: Read password from a .properties file (from the property named password) and then decrypt it
 * Sinks:
 *    GoodSink: Decrypt password and use decrypted password as password to connect to DB
 *    BadSink : Use password as password to connect to DB
 * Flow Variant: 31 Data flow: make a copy of data within the same method
 *
 * */







import java.util.logging.Level;

import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;

import java.util.Properties;

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

import java.sql.SQLException;
import java.sql.Connection;
import java.sql.DriverManager;

public class CWE256_Plaintext_Storage_of_Password__basic_31 extends AbstractTestCase
{
    public void bad() throws Throwable
    {
        String passwordCopy;
        {
            String password;

            password = ""; /* init password */

            /* retrieve the property */
            Properties properties = new Properties();
            FileInputStream streamFileInput = null;
            try
            {
                streamFileInput = new FileInputStream("../common/config.properties");
                properties.load(streamFileInput);

                password = properties.getProperty("password");
            }
            catch (IOException exceptIO)
            {
                IO.logger.log(Level.WARNING, "Error with stream reading", exceptIO);
            }
            finally
            {
                /* clean up stream reading objects */
                try
                {
                    if (streamFileInput != null)
                    {
                        streamFileInput.close();
                    }
                }
                catch (IOException exceptIO)
                {
                    IO.logger.log(Level.WARNING, "Error closing FileInputStream", exceptIO);
                }
            }

            /* POTENTIAL FLAW: The raw password read from the .properties file is passed on (without being decrypted) */

            passwordCopy = password;
        }
        {
            String password = passwordCopy;

            /* POTENTIAL FLAW: Use password as a password to connect to a DB  (without being decrypted) */

            Connection dBConnection = null;
            try
            {
                dBConnection = DriverManager.getConnection("192.168.105.23", "sa", password);
            }
            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
    {
        goodG2B();
        goodB2G();
    }

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

            password = ""; /* init password */

            /* retrieve the property */
            Properties properties = new Properties();

            FileInputStream streamFileInput = null;
            try
            {
                streamFileInput = new FileInputStream("../common/config.properties");
                properties.load(streamFileInput);

                password = properties.getProperty("password");
            }
            catch (IOException exceptIO)
            {
                IO.logger.log(Level.WARNING, "Error with stream reading", exceptIO);
            }
            finally
            {
                /* clean up stream reading objects */
                try
                {
                    if (streamFileInput != null)
                    {
                        streamFileInput.close();
                    }
                }
                catch (IOException exceptIO)
                {
                    IO.logger.log(Level.WARNING, "Error closing FileInputStream", exceptIO);
                }
            }

            /* FIX: password is decrypted before being passed on */
            {
                Cipher aesCipher = Cipher.getInstance("AES");

                /* INCIDENTAL: CWE-321: Use of Hard-coded Cryptographic Key */
                SecretKeySpec secretKeySpec = new SecretKeySpec("ABCDEFGHABCDEFGH".getBytes("UTF-8"), "AES");
                aesCipher.init(Cipher.DECRYPT_MODE, secretKeySpec);

                String decryptedPassword = new String(aesCipher.doFinal(password.getBytes("UTF-8")), "UTF-8");
                password = decryptedPassword;
            }

            passwordCopy = password;
        }
        {
            String password = passwordCopy;

            /* POTENTIAL FLAW: Use password as a password to connect to a DB  (without being decrypted) */

            Connection dBConnection = null;
            try
            {
                dBConnection = DriverManager.getConnection("192.168.105.23", "sa", password);
            }
            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);
                }
            }

        }
    }

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

            password = ""; /* init password */

            /* retrieve the property */
            Properties properties = new Properties();
            FileInputStream streamFileInput = null;
            try
            {
                streamFileInput = new FileInputStream("../common/config.properties");
                properties.load(streamFileInput);

                password = properties.getProperty("password");
            }
            catch (IOException exceptIO)
            {
                IO.logger.log(Level.WARNING, "Error with stream reading", exceptIO);
            }
            finally
            {
                /* clean up stream reading objects */
                try
                {
                    if (streamFileInput != null)
                    {
                        streamFileInput.close();
                    }
                }
                catch (IOException exceptIO)
                {
                    IO.logger.log(Level.WARNING, "Error closing FileInputStream", exceptIO);
                }
            }

            /* POTENTIAL FLAW: The raw password read from the .properties file is passed on (without being decrypted) */

            passwordCopy = password;
        }
        {
            String password = passwordCopy;

            /* FIX: password is decrypted before being used as a database password */
            {
                Cipher aesCipher = Cipher.getInstance("AES");

                /* INCIDENTAL: Hardcoded crypto */
                SecretKeySpec secretKeySpec = new SecretKeySpec("ABCDEFGHABCDEFGH".getBytes("UTF-8"), "AES");
                aesCipher.init(Cipher.DECRYPT_MODE, secretKeySpec);

                String decryptedPassword = new String(aesCipher.doFinal(password.getBytes("UTF-8")), "UTF-8");
                password = decryptedPassword;
            }

            Connection dBConnection = null;
            try
            {
                dBConnection = DriverManager.getConnection("192.168.105.23", "sa", password);
            }
            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);
                }
            }

        }
    }

    /* 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);
    }
}
