Examples of javax.security.sasl.SaslClient.evaluateChallenge()

javax.security.sasl.SaslClient.evaluateChallenge()
Evaluates the challenge data and generates a response. If a challenge is received from the server during the authentication process, this method is called to prepare an appropriate next response to submit to the server. @param challenge The non-null challenge sent from the server.The challenge array may have zero length. @return The possibly null response to send to the server.It is null if the challenge accompanied a "SUCCESS" status and the challenge only contains data for the client to update its state and no response needs to be sent to the server. The response is a zero-length byte array if the client is to send a response with no data. @exception SaslException If an error occurred while processingthe challenge or generating a response.


    SaslServer saslServer = Sasl.createSaslServer(
        mechanism, null, "localhost", null, serverCbh);
    assertNotNull("failed to find PLAIN server", saslServer);
    
    byte[] response = saslClient.evaluateChallenge(new byte[0]);
    assertNotNull(response);
    assertTrue(saslClient.isComplete());


    response = saslServer.evaluateResponse(response);
    assertNull(response);

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            // Corner case : the SASL mech might send an initial challenge, and we have to
            // deal with it immediately.
            if ( sc.hasInitialResponse() )
            {
                byte[] challengeResponse = sc.evaluateChallenge( new byte[0] );


                // Stores the challenge's response, and send it to the server
                bindRequest.setCredentials( challengeResponse );
                writeBindRequest( bindRequest );

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            }


            while ( !sc.isComplete()
                && ( ( result == ResultCodeEnum.SASL_BIND_IN_PROGRESS ) || ( result == ResultCodeEnum.SUCCESS ) ) )
            {
                response = sc.evaluateChallenge( bindResponse.getServerSaslCreds() );


                if ( result == ResultCodeEnum.SUCCESS )
                {
                    if ( response != null )
                    {

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                            + ". Please ensure all factories are registered. See DynamicSaslRegistrar for "
                            + " details of how to register non-standard SASL client providers.", null);
                    }


                    session.setSaslClient(sc);
                    saslResponse = (sc.hasInitialResponse() ? sc.evaluateChallenge(new byte[0]) : null);
                }
                catch (SaslException e)
                {
                    session.setSaslClient(null);
                    throw new AMQException(null, "Unable to create SASL client: " + e, e);

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            SaslClient sc = Sasl.createSaslClient
                (mechs, null, conSettings.getSaslProtocol(), conSettings.getSaslServerName(), saslProps, handler);
            conn.setSaslClient(sc);


            byte[] response = sc.hasInitialResponse() ?
                sc.evaluateChallenge(new byte[0]) : null;
            conn.connectionStartOk
                (clientProperties, sc.getMechanismName(), response,
                 conn.getLocale());
        }
        catch (SaslException e)

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    public void connectionSecure(Connection conn, ConnectionSecure secure)
    {
        SaslClient sc = conn.getSaslClient();
        try
        {
            byte[] response = sc.evaluateChallenge(secure.getChallenge());
            conn.connectionSecureOk(response);
        }
        catch (SaslException e)
        {
            conn.exception(e);

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            final SaslClient sc = createSaslClient(brokerMechs);


            conn.setSaslClient(sc);


            byte[] response = sc.hasInitialResponse() ?
                sc.evaluateChallenge(new byte[0]) : null;
            conn.connectionStartOk
                (clientProperties, sc.getMechanismName(), response,
                 conn.getLocale());
        }
        catch (ConnectionException ce)

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                            + ". Please ensure all factories are registered. See DynamicSaslRegistrar for "
                            + " details of how to register non-standard SASL client providers.", null);
                    }


                    session.setSaslClient(sc);
                    saslResponse = (sc.hasInitialResponse() ? sc.evaluateChallenge(new byte[0]) : null);
                }
                catch (SaslException e)
                {
                    session.setSaslClient(null);
                    throw new AMQException(null, "Unable to create SASL client: " + e, e);

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    public void connectionSecure(Connection conn, ConnectionSecure secure)
    {
        SaslClient sc = conn.getSaslClient();
        try
        {
            byte[] response = sc.evaluateChallenge(secure.getChallenge());
            conn.connectionSecureOk(response);
        }
        catch (SaslException e)
        {
            conn.exception(e);

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      }


      if (log.isTraceEnabled()) {
         log.tracef("Authenticating using mech: %s", configuration.saslMechanism());
      }
      byte response[] = saslClient.hasInitialResponse() ? saslClient.evaluateChallenge(EMPTY_BYTES) : EMPTY_BYTES;


      byte challenge[] = auth(tcpTransport, topologyId, configuration.saslMechanism(), response);
      while (!saslClient.isComplete() && challenge != null) {
         response = saslClient.evaluateChallenge(challenge);
         challenge = auth(tcpTransport, topologyId, "", response);

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