/*
 * $Header: /cvsroot/mvnforum/mvnforum/src/com/mvnforum/auth/SampleRealmAuthenticator.java,v 1.3 2005/01/18 11:52:16 minhnn Exp $
 * $Author: minhnn $
 * $Revision: 1.3 $
 * $Date: 2005/01/18 11:52:16 $
 *
 * ====================================================================
 *
 * Copyright (C) 2002-2005 by MyVietnam.net
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or any later version.
 *
 * All copyright notices regarding mvnForum MUST remain intact
 * in the scripts and in the outputted HTML.
 * The "powered by" text/logo with a link back to
 * http://www.mvnForum.com and http://www.MyVietnam.net in the
 * footer of the pages MUST remain visible when the pages
 * are viewed on the internet or intranet.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * Support can be obtained from support forums at:
 * http://www.mvnForum.com/mvnforum/index
 *
 * Correspondence and Marketing Questions can be sent to:
 * info@MyVietnam.net
 *
 * @author: Phong Ta Quoc  phongtq@myvietnam.net
 */
package com.mvnforum.auth;

import java.sql.Date;
import java.sql.Timestamp;

import javax.servlet.http.HttpServletRequest;

import com.mvnforum.MVNForumConfig;
import com.mvnforum.MVNForumConstant;
import com.mvnforum.common.SendMailUtil;
import com.mvnforum.db.DAOFactory;
import com.mvnforum.db.MemberBean;
import com.mvnforum.search.member.MemberIndexer;
import net.myvietnam.mvncore.exception.*;
import net.myvietnam.mvncore.util.*;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * This is a sample class that implement Authenticator for authenticate user when the system use
 * authentication type: Realm <p>
 * Use this class as a sample to write your own Single Sign-On solution
 */
public class SampleRealmAuthenticator implements Authenticator {

    private static Log log = LogFactory.getLog(SampleRealmAuthenticator.class);

    /* (non-Javadoc)
     * @see com.mvnforum.auth.Authenticator#getRemoteUser(javax.servlet.http.HttpServletRequest)
     * just return remote user if we find them in the request.getRemoteUser()
     */
    public String getRemoteUser(HttpServletRequest request) {
        String memberName = request.getRemoteUser();
        memberName = StringUtil.getEmptyStringIfNull(memberName);
        //log.debug("Member Name is " + memberName);
        if (memberName.length() > 0) {
            try {
                DAOFactory.getMemberDAO().findByAlternateKey_MemberName(memberName);
            } catch (ObjectNotFoundException onfe) {
                // memberName does not exist, let to add an account "memberName"
                try {
                    createAccount(memberName, request);
                } catch (Exception e) {
                    // just return null;
                    log.error("Error is :" + e);
                    return null;
                }
            } catch (DatabaseException de) {
                // do nothing,
                log.error("Error is :" + de);
            }
        }
        //log.debug("Member Name is " + memberName);
        return memberName;
    }

    private static void createAccount(String memberName, HttpServletRequest request)
        throws ObjectNotFoundException, CreateException, DatabaseException,
        DuplicateKeyException, ForeignKeyNotFoundException {

        Timestamp now = DateUtil.getCurrentGMTTimestamp();
        Date memberBirthday = new java.sql.Date(now.getTime());

        // You should think of creating the email based on your company policy
        String email = memberName + "@yourdomain.com";

        DAOFactory.getMemberDAO().create(memberName, "Realm", email,
                email, MemberBean.MEMBER_EMAIL_VISIBLE, MemberBean.MEMBER_NAME_VISIBLE,
                request.getRemoteAddr(), request.getRemoteAddr(), 0/*memberViewCount*/,
                0/*memberPostCount*/, now, now,now,
                now/*memberLastLogon*/, 0, MemberBean.MEMBER_STATUS_ENABLE,
                "", ""/*memberTempPassword*/, 0/*memberMessageCount*/,
                0, 10, 0/*memberWarnCount*/,
                0/*memberVoteCount*/, 0/*memberVoteTotalStars*/, 0/*memberRewardPoints*/,
                ""/*memberTitle*/, 0/*memberTimeZone*/, ""/*memberSignature*/,
                ""/*memberAvatar*/, ""/*memberSkin*/, ""/*memberLanguage*/,
                ""/*memberFirstname*/, ""/*memberLastname*/, 1/*memberGender*/,
                memberBirthday, ""/*memberAddress*/, ""/*memberCity*/,
                ""/*memberState*/, ""/*memberCountry*/, ""/*memberPhone*/,
                ""/*memberMobile*/, ""/*memberFax*/, ""/*memberCareer*/,
                ""/*memberHomepage*/, ""/*memberYahoo*/, ""/*memberAol*/,
                ""/*memberIcq*/, ""/*memberMsn*/, ""/*memberCoolLink1*/,
                ""/*memberCoolLink2*/);

        // Now, create 4 default folders for each member
        int memberID = DAOFactory.getMemberDAO().getMemberIDFromMemberName(memberName);
        int folderStatus = 0;
        int folderOption = 0;
        int folderType = 0;
        DAOFactory.getMessageFolderDAO().create(MVNForumConstant.MESSAGE_FOLDER_INBOX, memberID, 0/*order*/, folderStatus, folderOption, folderType, now, now);
        DAOFactory.getMessageFolderDAO().create(MVNForumConstant.MESSAGE_FOLDER_DRAFT, memberID, 1/*order*/, folderStatus, folderOption, folderType, now, now);
        DAOFactory.getMessageFolderDAO().create(MVNForumConstant.MESSAGE_FOLDER_SENT, memberID, 2/*order*/, folderStatus, folderOption, folderType, now, now);
        DAOFactory.getMessageFolderDAO().create(MVNForumConstant.MESSAGE_FOLDER_TRASH, memberID, 3/*order*/, folderStatus, folderOption, folderType, now, now);

        // Add member to the lucene index
        MemberBean memberBean = DAOFactory.getMemberDAO().getMember_forPublic(memberID);
        MemberIndexer.scheduleAddMemberTask(memberBean);

        // now, if require activation, then we will send mail
        // Note that because after this page succeed,
        // we redirect to usermanagement so not use mvnforum.mail.failed now
        if (MVNForumConfig.getRequireActivation()) {
            String serverName = ParamUtil.getServerPath(); //ParamUtil.getServer2(request);
            try {
                SendMailUtil.sendActivationCodeEmail(memberID, serverName);
            } catch (Exception ex) {
                log.error("Cannot send mail after registration!", ex);
                request.setAttribute("mvnforum.mail.failed", "Cannot send activation email after registration!");
                //@todo: save the error message to displayed later
            }
        }
    }
}