package com.armedia.acm.auth;

/*-
 * #%L
 * ACM Service: User Login and Authentication
 * %%
 * Copyright (C) 2014 - 2018 ArkCase LLC
 * %%
 * This file is part of the ArkCase software. 
 * 
 * If the software was purchased under a paid ArkCase license, the terms of 
 * the paid license agreement will prevail.  Otherwise, the software is 
 * provided under the following open source license terms:
 * 
 * ArkCase is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *  
 * ArkCase is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with ArkCase. If not, see <http://www.gnu.org/licenses/>.
 * #L%
 */

import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;

/**
 * Utility class for common authentication related methods
 */
public class AuthenticationUtils
{
    /**
     * @return Client IP address
     */
    public static String getUserIpAddress()
    {
        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
        if (authentication != null && authentication.getDetails() != null
                && authentication.getDetails() instanceof AcmAuthenticationDetails)
        {
            return ((AcmAuthenticationDetails) authentication.getDetails()).getRemoteAddress();
        }
        return null;
    }

    /**
     * @return Authenticated user principal name
     */
    public static String getUsername()
    {
        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
        if (authentication != null)
        {
            return authentication.getName();
        }
        return null;
    }

}