/* TEMPLATE GENERATED TESTCASE FILE
Filename: CWE319_Cleartext_Tx_Sensitive_Info__URLConnection_kerberosKey_22b.java
Label Definition File: CWE319_Cleartext_Tx_Sensitive_Info.label.xml
Template File: sources-sinks-22b.tmpl.java
*/
/*
 * @description
 * CWE: 319 Cleartext Transmission of Sensitive Information
 * BadSource: URLConnection Read password from a web server with URLConnection
 * GoodSource: Set password to a hardcoded value (one that was not sent over the network)
 * Sinks: kerberosKey
 *    GoodSink: Decrypt password before using in KerberosKey()
 *    BadSink : Use password directly in KerberosKey()
 * Flow Variant: 22 Control flow: Flow controlled by value of a public static variable. Sink functions are in a separate file from sources.
 *
 * */





import javax.security.auth.kerberos.KerberosPrincipal;
import javax.security.auth.kerberos.KerberosKey;

import javax.crypto.Cipher;

import javax.crypto.spec.SecretKeySpec;

public class CWE319_Cleartext_Tx_Sensitive_Info__URLConnection_kerberosKey_22b
{
    public void badSink(String password ) throws Throwable
    {
        if (CWE319_Cleartext_Tx_Sensitive_Info__URLConnection_kerberosKey_22a.badPublicStatic)
        {
            if (password != null)
            {
                KerberosPrincipal principal = new KerberosPrincipal("test");
                /* POTENTIAL FLAW: Use password directly in KerberosKey() */
                KerberosKey key = new KerberosKey(principal, password.toCharArray(), null);
                IO.writeLine(key.toString());
            }
        }
        else
        {
            /* INCIDENTAL: CWE 561 Dead Code, the code below will never run
             * but ensure password is inititialized before the Sink to avoid compiler errors */
            password = null;
        }
    }

    /* goodB2G1() - use badsource and goodsink by setting the static variable to false instead of true */
    public void goodB2G1Sink(String password ) throws Throwable
    {
        if (CWE319_Cleartext_Tx_Sensitive_Info__URLConnection_kerberosKey_22a.goodB2G1PublicStatic)
        {
            /* INCIDENTAL: CWE 561 Dead Code, the code below will never run
             * but ensure password is inititialized before the Sink to avoid compiler errors */
            password = null;
        }
        else
        {

            if (password != null)
            {
                KerberosPrincipal principal = new KerberosPrincipal("test");
                /* FIX: Decrypt password before using in KerberosKey() */
                {
                    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);
                    password = new String(aesCipher.doFinal(password.getBytes("UTF-8")), "UTF-8");
                }
                KerberosKey key = new KerberosKey(principal, password.toCharArray(), null);
                IO.writeLine(key.toString());
            }

        }
    }

    /* goodB2G2() - use badsource and goodsink by reversing the blocks in the if in the sink function */
    public void goodB2G2Sink(String password ) throws Throwable
    {
        if (CWE319_Cleartext_Tx_Sensitive_Info__URLConnection_kerberosKey_22a.goodB2G2PublicStatic)
        {
            if (password != null)
            {
                KerberosPrincipal principal = new KerberosPrincipal("test");
                /* FIX: Decrypt password before using in KerberosKey() */
                {
                    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);
                    password = new String(aesCipher.doFinal(password.getBytes("UTF-8")), "UTF-8");
                }
                KerberosKey key = new KerberosKey(principal, password.toCharArray(), null);
                IO.writeLine(key.toString());
            }
        }
        else
        {
            /* INCIDENTAL: CWE 561 Dead Code, the code below will never run
             * but ensure password is inititialized before the Sink to avoid compiler errors */
            password = null;
        }
    }

    /* goodG2B() - use goodsource and badsink */
    public void goodG2BSink(String password ) throws Throwable
    {
        if (CWE319_Cleartext_Tx_Sensitive_Info__URLConnection_kerberosKey_22a.goodG2BPublicStatic)
        {
            if (password != null)
            {
                KerberosPrincipal principal = new KerberosPrincipal("test");
                /* POTENTIAL FLAW: Use password directly in KerberosKey() */
                KerberosKey key = new KerberosKey(principal, password.toCharArray(), null);
                IO.writeLine(key.toString());
            }
        }
        else
        {
            /* INCIDENTAL: CWE 561 Dead Code, the code below will never run
             * but ensure password is inititialized before the Sink to avoid compiler errors */
            password = null;
        }
    }
}
