JLDAP/TLS

import com.novell.ldap.LDAPJSSESecureSocketFactory;

import com.novell.ldap.LDAPConnection;

import com.novell.ldap.LDAPException;

import com.sun.net.ssl.SSLContext;

import com.sun.net.ssl.TrustManager;

import com.sun.net.ssl.X509TrustManager;

import com.sun.net.ssl.TrustManagerFactory;

import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.io.FileNotFoundException;

import java.security.Security;

import java.security.KeyStore;

import java.security.cert.X509Certificate;

import java.util.Enumeration;

import java.io.UnsupportedEncodingException;



public class TLSTrustManager

{

    public static void main( String[] args )

    {

        try

        {

           // Check for valid arguments


            if (args.length != 3 && args.length != 5)

            {

                System.err.println("Usage:   java TLSTrustManager <host name>"

                                 + " <login dn> <password>"

                                 + " <keystore path> <keystore password>");

                System.err.println("*Note: If <keystore path> does not"

                                 + " exist it will be created if the untrusted"

                                 + " certificate chain is trusted by the user."

                                 );

                System.err.println("Example: java TLSTrustManager Acme.com"

                                 + " \"cn=Admin,o=Acme\" secret my.keystore"

                                 + " mykeypass");

                System.exit(1);

            }



            String ldapHost         = args[0];

            String loginDN          = args[1];

            String password         = args[2];

            String keyStorePath     = args[3];

            char[] keyStorePassword = args[4].toCharArray();



           //dynamically set SunJSSE as a security provider


            Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());



           // Open the keystore file.


            FileInputStream keyStoreIStream = null;

            try

            {

               // Open the stream to read in the keystore.


                keyStoreIStream = new FileInputStream(keyStorePath);

            }

            catch( FileNotFoundException e )

            {

               // If the path does not exist then a null stream means


               // the keystore is initialized empty. If an untrusted


               // certificate chain is trusted by the user, then it will be


               // saved in the file pointed to by keyStorePath.


                keyStoreIStream = null;

            }

           // Create a KeyStore Object


            KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());

           // Init the Keystore with the contents of the keystore file.


           // If the input stream is null the keystore is initialized empty.


            keyStore.load(keyStoreIStream, keyStorePassword);



           // Close keystore input stream


            if(keyStoreIStream != null)

            {

                keyStoreIStream.close();

                keyStoreIStream = null;

            }



           // Instantiate MyTrustManager that will handle server certificate


           // chains.


            TrustManager[] tms = {new MyTrustManager(keyStore,

                                                     keyStorePath,

                                                     keyStorePassword)};



           // Create context based on a TLS protocol and a SunJSSE provider.


            SSLContext context = SSLContext.getInstance("TLS", "SunJSSE");



           // Initialize the SSL context with MyTrustManager.


           // The first parameter - null means use the default key manager.


           // The third parameter - null means use the default value


           // "secure random".


            context.init(null, tms, null);





           // The socket factory must be set before the connection is made.


           // Version 1.6 or later of the NDK must be used in order for this


           // code to compile properly.


            LDAPJSSESecureSocketFactory ssf =

                  new LDAPJSSESecureSocketFactory( context.getSocketFactory() );



           // Create an LDAP connection object. Pass in the secure socket.


            LDAPConnection lc = new LDAPConnection(ssf);



           // Connect to the server.


            lc.connect( ldapHost, LDAPConnection.DEFAULT_SSL_PORT );



           // Authenticate to the server


            lc.bind( LDAPConnection.LDAP_V3, loginDN, password.getBytes("UTF8") );



           // At this point you are connected with a secure connection.


            System.out.println( "Successful bind using TLS connection.");



           // Close the connection.


            lc.disconnect();

            System.out.println( "Disconnect");



            System.exit(0);

        }

        catch( UnsupportedEncodingException e ) {

            System.out.println( "Error: " + e.toString() );

        }

        catch( LDAPException ex )

        {

            System.out.println( "LDAP Error: " + ex.toString() );

        }

        catch( Exception e )

        {

            System.out.println( "main Error: " + e.toString() );

            System.exit(1);

        }

    }



   // MyTrustManager


   // This sub_class implements the X509TrustManager interface. MyTrustManager


   // trusts known certificate chains, and queries the user to approve unknown


   // chains. It will add trusted chains to the keystore.




    private static class MyTrustManager implements X509TrustManager

    {

        private KeyStore keyStore;

        private String   keyStorePath;

        private char[]   keyStorePassword;





       // MyTrustManager constructor. Save off keyStore object along with


       // the path to the keystore (keyStorePath) and it's password


       // (keyStorePassword).


        public MyTrustManager(KeyStore         keyStore,

                              String           keyStorePath,

                              char[]           keyStorePassword)

        {

            this.keyStore = keyStore;

            this.keyStorePath = keyStorePath;

            this.keyStorePassword = keyStorePassword;

        }



       // isClientTrusted checks to see if the chain is in the keyStore object.


       // This is done with a call to isChainTrusted.


        public boolean isClientTrusted(X509Certificate[] chain)

        {

            return isChainTrusted(chain);

        }



       // isServerTrusted checks to see if the chain is in the keyStore object.


       // This is done with a call to isChainTrusted. If not it queries the


       // user to see if the chain should be trusted and stored into the


       // keyStore object. The keyStore is then saved in the file whose path


       // keyStorePath


        public boolean isServerTrusted(X509Certificate[] chain)

        {

            boolean trusted = false;

            try

            {

               // See if the chain is in the keyStore object.


                trusted = isChainTrusted(chain);



               // If certificate is untrusted


                if(!trusted)

                {

                    System.out.println("Untrusted Certificate chain:");

                    for (int i = 0; i < chain.length; i++)

                    {

                       // display certificate chain information


                        System.out.println("Certificate chain[" + i + "]:");

                        System.out.println("Subject: "

                                         + chain[i].getSubjectDN().toString());

                        System.out.println("Issuer: "

                                         + chain[i].getIssuerDN().toString());

                    }

                   // Ask the user if the certificate should be trusted.


                    System.out.print("Trust this certificate chain and"

                                   + " add it to the keystore? (y or n) ");

                    int readStatus = System.in.read();

                    if(readStatus == 'y'|| readStatus == 'Y')

                    {

                       // Trust the chain.


                        trusted = true;

                       // Add Chain to the keyStore.


                        for (int i = 0; i < chain.length; i++)

                        {

                            keyStore.setCertificateEntry

                                (chain[i].getIssuerDN().toString(), chain[i]);

                        }

                        System.out.println("Certificate chain to keystore.");

                       // Save keystore to file.


                        FileOutputStream keyStoreOStream =

                            new FileOutputStream(keyStorePath);

                        keyStore.store(keyStoreOStream, keyStorePassword);

                        keyStoreOStream.close();

                        keyStoreOStream = null;

                        System.out.println("Keystore saved in " + keyStorePath);

                    }

                    else

                        trusted = false;

                }

            }

            catch( Exception e )

            {

                System.out.println( "isServerTrusted Error: " + e.toString() );

                trusted = false;

            }

            return trusted;

        }



       // getAcceptedIssuers retrieves all of the certificates in the keyStore


       // and returns them in an X509Certificate array.


        public X509Certificate[] getAcceptedIssuers()

        {

            X509Certificate[] X509Certs = null;

            try

            {

               // See how many certificates are in the keystore.


                int numberOfEntry = keyStore.size();

               // If there are any certificates in the keystore.


                if(numberOfEntry > 0)

                {

                   // Create an array of X509Certificates


                    X509Certs = new X509Certificate[numberOfEntry];



                   // Get all of the certificate alias out of the keystore.


                    Enumeration aliases = keyStore.aliases();



                   // Retrieve all of the certificates out of the keystore


                   // via the alias name.


                    int i = 0;

                    while (aliases.hasMoreElements())

                    {

                        X509Certs[i] =

                            (X509Certificate)keyStore.

                            getCertificate((String)aliases.nextElement());

                        i++;

                    }



                }

            }

            catch( Exception e )

            {

                System.out.println( "getAcceptedIssuers Exception: "

                                 + e.toString() );

                X509Certs = null;

            }

            return X509Certs;

        }



       // isChainTrusted searches the keyStore for any certificate in the


       // certificate chain.


        private boolean isChainTrusted(X509Certificate[] chain)

        {

            boolean trusted = false;

            try

            {

               // Start with the root and see if it is in the Keystore.


               // The root is at the end of the chain.


                for (int i = chain.length - 1; i >= 0; i-- )

                {

                    if (keyStore.getCertificateAlias(chain[i]) != null)

                    {

                        trusted = true;

                        break;

                    }

                }

            }

            catch( Exception e )

            {

                System.out.println( "isChainTrusted Exception: "

                                 + e.toString() );

                trusted = false;

            }

            return trusted;

        }

    }

}