import jcifs.spnego.NegTokenTarg;
import jcifs.spnego.SpnegoException;
import jcifs.spnego.SpnegoToken;
import jcifs.util.Hexdump;


/**
 * This class used to wrap a {@link SSPContext} to provide SPNEGO feature.
 * 
 * @author Shun
 *
 */
class SpnegoContext implements SSPContext {

    private static final Logger log = LoggerFactory.getLogger(SpnegoContext.class);

    public static final ParseField STORE_NAME = new ParseField("store");
    public static final ParseField PARAMS = new ParseField("params");
    public static final ParseField ACTIVE_FEATURES = new ParseField("active_features");
    private static final ObjectParser<StoredLtrQueryBuilder, Void> PARSER;

    static {
        PARSER = new ObjectParser<>(NAME);

                    final DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
                    factory.setFeature(Constants.FEATURE_SECURE_PROCESSING, true);
                    factory.setFeature(Constants.FEATURE_EXTERNAL_GENERAL_ENTITIES, false);
                    factory.setFeature(Constants.FEATURE_EXTERNAL_PARAMETER_ENTITIES, false);
                    factory.setAttribute(XMLConstants.ACCESS_EXTERNAL_DTD, StringUtil.EMPTY);

    public static final String ERRORS_failed_to_create_crawling_config_at_wizard = "{errors.failed_to_create_crawling_config_at_wizard}";

    /** The key of the message: This feature is disabled. */
    public static final String ERRORS_design_editor_disabled = "{errors.design_editor_disabled}";

    /** The key of the message: Not Found: {0} */

                    factory.setFeature(org.codelibs.fess.crawler.Constants.FEATURE_EXTERNAL_GENERAL_ENTITIES, false);
                    factory.setFeature(org.codelibs.fess.crawler.Constants.FEATURE_EXTERNAL_PARAMETER_ENTITIES, false);
                    factory.setFeature(Constants.XERCES_FEATURE_PREFIX + Constants.LOAD_EXTERNAL_DTD_FEATURE, false);

    public static final String FESS_CONFIG_PREFIX = "fess.config.";

    public static final String XERCES_FEATURE_PREFIX = "http://apache.org/xml/features/";

    public static final String LOAD_EXTERNAL_DTD_FEATURE = "nonvalidating/load-external-dtd";

    public static final String FESEN_TYPE_CLOUD = "cloud";

    public static final String FESEN_TYPE_AWS = "aws";

                if (logger.isDebugEnabled()) {
                    logger.debug("Failed to set a property.", e);
                }
            }
        }
        try {
            factory.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, true);
        } catch (final ParserConfigurationException e) {
            throw new ParserConfigurationRuntimeException(e);
        }
        return factory;
    }

    /**

import org.ietf.jgss.Oid;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jcifs.CIFSException;
import jcifs.spnego.NegTokenInit;


/**
 * This class used to provide Kerberos feature when setup GSSContext.
 * 
 * @author Shun
 */
class Kerb5Context implements SSPContext {

    private static final Logger log = LoggerFactory.getLogger(Kerb5Context.class);

        final SAXParserFactory factory = SAXParserFactory.newInstance();
        try {
            factory.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, true);
            factory.setFeature("http://xml.org/sax/features/external-general-entities", false);
            factory.setFeature("http://xml.org/sax/features/external-parameter-entities", false);
        } catch (SAXNotRecognizedException | SAXNotSupportedException e) {

            factory.setFeature(org.codelibs.fess.crawler.Constants.FEATURE_SECURE_PROCESSING, true);
            factory.setFeature(org.codelibs.fess.crawler.Constants.FEATURE_EXTERNAL_GENERAL_ENTITIES, false);
            factory.setFeature(org.codelibs.fess.crawler.Constants.FEATURE_EXTERNAL_PARAMETER_ENTITIES, false);
            final SAXParser parser = factory.newSAXParser();