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.

                            + ". 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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        try
        {
            // Evaluate server challenge
            byte[] response = client.evaluateChallenge(body.getChallenge());


            ConnectionSecureOkBody secureOkBody = session.getMethodRegistry().createConnectionSecureOkBody(response);


            session.writeFrame(secureOkBody.generateFrame(channelId));
        }

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  protected void handleSaslStartMessage() throws TTransportException, SaslException {
    SaslClient saslClient = getSaslClient();


    byte[] initialResponse = new byte[0];
    if (saslClient.hasInitialResponse())
      initialResponse = saslClient.evaluateChallenge(initialResponse);


    LOGGER.debug("Sending mechanism name {} and initial response of length {}", mechanism,
        initialResponse.length);


    byte[] mechanismBytes = mechanism.getBytes();

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    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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          "memcached", memcachedTCPSession.getRemoteSocketAddress()
              .toString(), null, this.authInfo
              .getCallbackHandler());


      final AtomicBoolean done = new AtomicBoolean(false);
      byte[] response = saslClient.hasInitialResponse() ? saslClient
          .evaluateChallenge(EMPTY_BYTES) : EMPTY_BYTES;
      CountDownLatch latch = new CountDownLatch(1);
      Command command = this.commandFactory.createAuthStartCommand(
          saslClient.getMechanismName(), latch, response);
      if (!this.memcachedTCPSession.isClosed())

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          this.memcachedTCPSession.close();
          done.set(true);
          break;
        case FUTHER_AUTH_REQUIRED:
          String result = (String) command.getResult();
          response = saslClient.evaluateChallenge(ByteUtils
              .getBytes(result));
          latch = new CountDownLatch(1);
          command = commandFactory.createAuthStepCommand(saslClient
              .getMechanismName(), latch, response);
          if (!this.memcachedTCPSession.isClosed())

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                    throw new AMQException("Client SASL configuration error: no SaslClient could be created for mechanism " +
                                           mechanism + ". Please ensure all factories are registered. See DynamicSaslRegistrar for " +
                                           " details of how to register non-standard SASL client providers.");
                }
                ps.setSaslClient(sc);
                saslResponse = (sc.hasInitialResponse() ? sc.evaluateChallenge(new byte[0]) : null);
            }
            catch (SaslException e)
            {
                ps.setSaslClient(null);
                throw new AMQException("Unable to create SASL client: " + e, e);

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        ConnectionSecureBody body = (ConnectionSecureBody) evt.getMethod();


        try
        {
            // Evaluate server challenge
            byte[] response = client.evaluateChallenge(body.challenge);
            AMQFrame responseFrame = ConnectionSecureOkBody.createAMQFrame(evt.getChannelId(), response);
            evt.getProtocolSession().writeFrame(responseFrame);
        }
        catch (SaslException e)
        {

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