final String providerUrl, final String principal, final String credntials) {
        final Hashtable<String, String> env = new Hashtable<>();
        putEnv(env, Context.INITIAL_CONTEXT_FACTORY, initialContextFactory);
        putEnv(env, Context.SECURITY_AUTHENTICATION, securityAuthentication);
        putEnv(env, Context.PROVIDER_URL, providerUrl);
        putEnv(env, Context.SECURITY_PRINCIPAL, principal);

            // client/caller principal
            final SpnegoPrincipal principal;
            try {
                principal = getAuthenticator().authenticate(request, spnegoResponse);
                if (logger.isDebugEnabled()) {
                    logger.debug("principal: {}", principal);
                }
            } catch (final Exception e) {

    }


    @Override
    public String getUserDomain () {
        if ( this.realm == null && this.getSubject() != null ) {
            Set<Principal> pr = this.getSubject().getPrincipals();
            for ( Iterator<Principal> ite = pr.iterator(); ite.hasNext(); ) {
                try {
                    KerberosPrincipal entry = (KerberosPrincipal) ite.next();
                    return entry.getRealm();

package jcifs.http;


import java.security.Principal;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;


class NtlmHttpServletRequest extends HttpServletRequestWrapper {

    Principal principal;


    NtlmHttpServletRequest ( HttpServletRequest req, Principal principal ) {
        super(req);
        this.principal = principal;
    }


    @Override

package jcifs.smb1.http;

import java.security.Principal;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;

class NtlmHttpServletRequest extends HttpServletRequestWrapper {

    Principal principal;

    NtlmHttpServletRequest( HttpServletRequest req, Principal principal ) {
        super( req );
        this.principal = principal;
    }
    public String getRemoteUser() {

                        final UserPrincipal principal = acl.principal();
                        if (logger.isDebugEnabled()) {
                            logger.debug("Principal: [{}] {}", principal.getClass().getName(), principal);
                        }
                        if (principal instanceof final GroupPrincipal groupPrincipal) {

 * username for example:
 * <tt>
 * String username = f.getPrincipal().getName();
 * </tt>
 * The <tt>Principal</tt> object returned will never be <tt>null</tt>
 * however the username can be <tt>null</tt> indication anonymous
 * credentials were used (e.g. some IPC$ services).
 */

    public Principal getPrincipal() {
        return auth;
    }

/**

labels.ldapSecurityPrincipal=User DN
labels.ldapAdminSecurityPrincipal=Bind DN
labels.ldapAdminSecurityCredentials=パスワード
labels.ldapBaseDn=Base DN
labels.ldap_provider_url=LDAP URL
labels.ldap_security_principal=User DN
labels.ldap_admin_security_principal=Bind DN
labels.ldap_admin_security_credentials=パスワード
labels.ldap_base_dn=Base DN
labels.ldapAccountFilter=アカウントフィルタ
labels.ldapGroupFilter=グループフィルタ
labels.ldapMemberofAttribute=memberOf属性

    }


    /**
     * @param principal
     * @return
     * @throws RealmException
     */
    protected static PrincipalName convertPrincipal ( KerberosPrincipal principal ) throws RealmException {
        PrincipalName principalName = new PrincipalName(
            principal.getName() + PrincipalName.NAME_REALM_SEPARATOR + principal.getRealm(),
            PrincipalName.KRB_NT_PRINCIPAL);
        return principalName;
    }

    public static final String LDAP_BASE_DN = "ldap.base.dn";

    public static final String LDAP_SECURITY_PRINCIPAL = "ldap.security.principal";

    public static final String LDAP_ADMIN_SECURITY_PRINCIPAL = "ldap.admin.security.principal";

    public static final String LDAP_ADMIN_SECURITY_CREDENTIALS = "ldap.admin.security.credentials";