ssn.setAttribute("NtlmHttpAuth", ntlm);
            ssn.setAttribute( "ntlmdomain", ntlm.getDomain() );
            ssn.setAttribute( "ntlmuser", ntlm.getUsername() );
        } else {
            HttpSession ssn = request.getSession(false);
            if (ssn == null || ssn.getAttribute("NtlmHttpAuth") == null) {
                response.setHeader("WWW-Authenticate", "NTLM");
                if (offerBasic) {

 * <tt>NtlmServlet</tt>, and <tt>NetworkExplorer</tt> to negotiate password
 * hashes via NTLM SSP with MSIE. It might also be used directly by servlet
 * containers to incorporate similar functionality.
 * <p>
 * How NTLMSSP is used in conjunction with HTTP and MSIE clients is
 * described in an <A HREF="http://www.innovation.ch/java/ntlm.html">NTLM
 * Authentication Scheme for HTTP</A>.
 * <p>
 * Also, read <a

            }
            NtlmPasswordAuthentication ntlm;
            if ( msg.startsWith("NTLM ") ) {
                byte[] challenge = getTransportContext().getTransportPool().getChallenge(getTransportContext(), dc);
                ntlm = NtlmSsp.authenticate(getTransportContext(), request, response, challenge);
                if ( ntlm == null )
                    return;
            }
            else {

            if (currentAuthMethod.startsWith("NTLM")) {
                if (currentAuthMethod.length() == 4) {
                    authMethod = "NTLM";
                    break;
                }
                if (currentAuthMethod.indexOf(' ') != 4) continue;
                authMethod = "NTLM";
                authorization = currentAuthMethod.substring(5).trim();
                break;

        NtlmPasswordAuthentication ntlm;

        if ((ntlm = negotiate( req, resp, false )) == null) {
            return;
        }

        chain.doFilter( new NtlmHttpServletRequest( req, ntlm ), response );
    }

    /**
     * Negotiate password hashes with MSIE clients using NTLM SSP
     * @param req The servlet request
     * @param resp The servlet response

     */
    @Deprecated
    void logon ( CIFSContext tc, Address dc, int port ) throws CIFSException;


    /**
     * Get NTLM challenge from a server
     * 
     * @param dc
     * @param tc
     * @return NTLM challenge
     * @throws CIFSException
     * @deprecated functionality is broken and will be removed at some point,

        NtlmPasswordAuthentication ntlm;

        if ( ( ntlm = negotiate(req, resp, false) ) == null ) {
            return;
        }

        chain.doFilter(new NtlmHttpServletRequest(req, ntlm), response);
    }


    /**
     * Negotiate password hashes with MSIE clients using NTLM SSP
     * 
     * @param req
     *            The servlet request

            NtlmPasswordAuthenticator ntlm = (NtlmPasswordAuthenticator) obj;
            String domA = ntlm.getUserDomain() != null ? ntlm.getUserDomain().toUpperCase() : null;
            String domB = this.getUserDomain() != null ? this.getUserDomain().toUpperCase() : null;
            return ntlm.type == this.type && Objects.equals(domA, domB) && ntlm.getUsername().equalsIgnoreCase(this.getUsername())

 * hashes via NTLM SSP with MSIE. It might also be used directly by servlet
 * containers to incorporate similar functionality.
 * <p>
 * How NTLMSSP is used in conjunction with HTTP and MSIE clients is
 * described in an <A HREF="http://www.innovation.ch/java/ntlm.html">NTLM
 * Authentication Scheme for HTTP</A>.  <p> Also, read <a
 * href="../../../ntlmhttpauth.html">jCIFS NTLM HTTP Authentication and

 */
package org.codelibs.fess.crawler.client.http.ntlm;

import org.apache.http.auth.AuthScheme;
import org.apache.http.auth.AuthSchemeProvider;
import org.apache.http.impl.auth.NTLMScheme;
import org.apache.http.protocol.HttpContext;

/**
 * This class is AuthSchemeFactory implementation for NTLM.
 *
 * @author shinsuke
 *
 */