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.

            throw new Exception("Unable to find client implementation for: " +
                DIGEST_MD5);
        }


        byte[] response = client.hasInitialResponse()
            ? client.evaluateChallenge(EMPTY) : EMPTY;
        logger.info("initial: " + new String(response));


        // server
        byte[] challenge = null;
        SaslServer server = Sasl.createSaslServer(DIGEST_MD5, "xmpp",

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            challenge = server.evaluateResponse(response);


            logger.info("challenge: " + new String(challenge));


            if (challenge != null) {
                response = client.evaluateChallenge(challenge);
            }
        }


        String challengeString = new String(challenge, "UTF-8").toLowerCase();

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        }


        public CommandResult authenticate()  {
            SaslClient saslClient = createSaslClient();
            try {
                byte[] response = (saslClient.hasInitialResponse() ? saslClient.evaluateChallenge(new byte[0]) : null);
                CommandResult res = sendSaslStart(response);
                res.throwOnError();


                int conversationId = (Integer) res.get("conversationId");

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                res.throwOnError();


                int conversationId = (Integer) res.get("conversationId");


                while (! (Boolean) res.get("done")) {
                    response = saslClient.evaluateChallenge((byte[]) res.get("payload"));


                    if (response == null) {
                        throw new MongoException("SASL protocol error: no client response to challenge");
                    }

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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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            // 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 );
                writeRequest( 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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