/* TEMPLATE GENERATED TESTCASE FILE
Filename: CWE90_LDAP_Injection__URLConnection_10.java
Label Definition File: CWE90_LDAP_Injection.label.xml
Template File: sources-sink-10.tmpl.java
*/
/*
* @description
* CWE: 90 LDAP Injection
* BadSource: URLConnection Read data from a web server with URLConnection
* GoodSource: A hardcoded string
* BadSink:  data concatenated into LDAP search, which could result in LDAP Injection
* Flow Variant: 10 Control flow: if(IO.staticTrue) and if(IO.staticFalse)
*
* */







import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;
import java.net.URL;
import java.net.URLConnection;

import java.util.logging.Level;

import javax.naming.*;
import javax.naming.directory.*;

import java.util.Hashtable;

public class CWE90_LDAP_Injection__URLConnection_10 extends AbstractTestCase
{
    /* uses badsource and badsink */
    public void bad() throws Throwable
    {
        String data;
        if (IO.staticTrue)
        {
            data = ""; /* Initialize data */
            /* read input from URLConnection */
            {
                URLConnection urlConnection = (new URL("http://www.example.org/")).openConnection();
                BufferedReader readerBuffered = null;
                InputStreamReader readerInputStream = null;
                try
                {
                    readerInputStream = new InputStreamReader(urlConnection.getInputStream(), "UTF-8");
                    readerBuffered = new BufferedReader(readerInputStream);
                    /* POTENTIAL FLAW: Read data from a web server with URLConnection */
                    /* This will be reading the first "line" of the response body,
                     * which could be very long if there are no newlines in the HTML */
                    data = readerBuffered.readLine();
                }
                catch (IOException exceptIO)
                {
                    IO.logger.log(Level.WARNING, "Error with stream reading", exceptIO);
                }
                finally
                {
                    /* clean up stream reading objects */
                    try
                    {
                        if (readerBuffered != null)
                        {
                            readerBuffered.close();
                        }
                    }
                    catch (IOException exceptIO)
                    {
                        IO.logger.log(Level.WARNING, "Error closing BufferedReader", exceptIO);
                    }

                    try
                    {
                        if (readerInputStream != null)
                        {
                            readerInputStream.close();
                        }
                    }
                    catch (IOException exceptIO)
                    {
                        IO.logger.log(Level.WARNING, "Error closing InputStreamReader", exceptIO);
                    }
                }
            }
        }
        else
        {
            /* 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;
        }

        Hashtable<String, String> environmentHashTable = new Hashtable<String, String>();
        environmentHashTable.put(Context.INITIAL_CONTEXT_FACTORY,"com.sun.jndi.ldap.LdapCtxFactory");
        environmentHashTable.put(Context.PROVIDER_URL, "ldap://localhost:389");
        DirContext directoryContext = null;

        try
        {
            directoryContext = new InitialDirContext(environmentHashTable);
            /* POTENTIAL FLAW: data concatenated into LDAP search, which could result in LDAP Injection */
            String search = "(cn=" + data + ")";

            NamingEnumeration<SearchResult> answer = directoryContext.search("", search, null);
            while (answer.hasMore())
            {
                SearchResult searchResult = answer.next();
                Attributes attributes = searchResult.getAttributes();
                NamingEnumeration<?> allAttributes = attributes.getAll();
                while (allAttributes.hasMore())
                {
                    Attribute attribute = (Attribute) allAttributes.next();
                    NamingEnumeration<?> allValues = attribute.getAll();
                    while(allValues.hasMore())
                    {
                        IO.writeLine(" Value: " + allValues.next().toString());
                    }
                }
            }
        }
        catch (NamingException exceptNaming)
        {
            IO.logger.log(Level.WARNING, "The LDAP service was not found or login failed.", exceptNaming);
        }
        finally
        {
            if (directoryContext != null)
            {
                try
                {
                    directoryContext.close();
                }
                catch (NamingException exceptNaming)
                {
                    IO.logger.log(Level.WARNING, "Error closing DirContext", exceptNaming);
                }
            }
        }

    }

    /* goodG2B1() - use goodsource and badsink by changing IO.staticTrue to IO.staticFalse */
    private void goodG2B1() throws Throwable
    {
        String data;
        if (IO.staticFalse)
        {
            /* 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;
        }
        else
        {

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

        }

        Hashtable<String, String> environmentHashTable = new Hashtable<String, String>();
        environmentHashTable.put(Context.INITIAL_CONTEXT_FACTORY,"com.sun.jndi.ldap.LdapCtxFactory");
        environmentHashTable.put(Context.PROVIDER_URL, "ldap://localhost:389");
        DirContext directoryContext = null;

        try
        {
            directoryContext = new InitialDirContext(environmentHashTable);
            /* POTENTIAL FLAW: data concatenated into LDAP search, which could result in LDAP Injection */
            String search = "(cn=" + data + ")";

            NamingEnumeration<SearchResult> answer = directoryContext.search("", search, null);
            while (answer.hasMore())
            {
                SearchResult searchResult = answer.next();
                Attributes attributes = searchResult.getAttributes();
                NamingEnumeration<?> allAttributes = attributes.getAll();
                while (allAttributes.hasMore())
                {
                    Attribute attribute = (Attribute) allAttributes.next();
                    NamingEnumeration<?> allValues = attribute.getAll();
                    while(allValues.hasMore())
                    {
                        IO.writeLine(" Value: " + allValues.next().toString());
                    }
                }
            }
        }
        catch (NamingException exceptNaming)
        {
            IO.logger.log(Level.WARNING, "The LDAP service was not found or login failed.", exceptNaming);
        }
        finally
        {
            if (directoryContext != null)
            {
                try
                {
                    directoryContext.close();
                }
                catch (NamingException exceptNaming)
                {
                    IO.logger.log(Level.WARNING, "Error closing DirContext", exceptNaming);
                }
            }
        }

    }

    /* goodG2B2() - use goodsource and badsink by reversing statements in if */
    private void goodG2B2() throws Throwable
    {
        String data;
        if (IO.staticTrue)
        {
            /* FIX: Use a hardcoded string */
            data = "foo";
        }
        else
        {
            /* 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;
        }

        Hashtable<String, String> environmentHashTable = new Hashtable<String, String>();
        environmentHashTable.put(Context.INITIAL_CONTEXT_FACTORY,"com.sun.jndi.ldap.LdapCtxFactory");
        environmentHashTable.put(Context.PROVIDER_URL, "ldap://localhost:389");
        DirContext directoryContext = null;

        try
        {
            directoryContext = new InitialDirContext(environmentHashTable);
            /* POTENTIAL FLAW: data concatenated into LDAP search, which could result in LDAP Injection */
            String search = "(cn=" + data + ")";

            NamingEnumeration<SearchResult> answer = directoryContext.search("", search, null);
            while (answer.hasMore())
            {
                SearchResult searchResult = answer.next();
                Attributes attributes = searchResult.getAttributes();
                NamingEnumeration<?> allAttributes = attributes.getAll();
                while (allAttributes.hasMore())
                {
                    Attribute attribute = (Attribute) allAttributes.next();
                    NamingEnumeration<?> allValues = attribute.getAll();
                    while(allValues.hasMore())
                    {
                        IO.writeLine(" Value: " + allValues.next().toString());
                    }
                }
            }
        }
        catch (NamingException exceptNaming)
        {
            IO.logger.log(Level.WARNING, "The LDAP service was not found or login failed.", exceptNaming);
        }
        finally
        {
            if (directoryContext != null)
            {
                try
                {
                    directoryContext.close();
                }
                catch (NamingException exceptNaming)
                {
                    IO.logger.log(Level.WARNING, "Error closing DirContext", exceptNaming);
                }
            }
        }

    }

    public void good() throws Throwable
    {
        goodG2B1();
        goodG2B2();
    }

    /* 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);
    }
}
