owner-3

/*
 * Final NxnFormatter - It's a program created to format the content of topics
 * on VBulletin forums so that the text have a better look. It's an upgrade of
 * Uformatter.
 *
 * Copyright (C) 2014 Renan Gomes (rnxn) at <??????????@live.com>
 *
 * 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 3 of the License, or
 * (at your option) any later version.
 *
 * 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, see <http://www.gnu.org/licenses/>.
 */

package sys.models.ext;

import sys.starter.SysInfoEnum;
import java.io.UnsupportedEncodingException;
import java.math.BigInteger;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import sys.data.exception.SysException;

/**
 * <code>SysInfoUtils</code> contém algumas informações para a formatação final.
 * Somente para controle mesmo da aplicação.
 *
 * @author RENAN
 * @since 2014
 * @version 1.0*/

public class SysInfoUtils {

    public final int INIT_DEV = 1;
    public final int INIT_NAME = 2;
    public final int INIT_COPY = 3;
    public final int INIT_DEV_CP = 4;
    public final int INIT_VER = 5;

    public final int ERR_VERSION = 100;
    public final int ERR_NOTAUTH = 101;

    //<sys sec>
    public String sec(String in){
        in = in.toLowerCase();
        try {
            MessageDigest a = MessageDigest.getInstance(SysInfoEnum.nxSysM5.getSysInfo());
            a.update(in.getBytes(SysInfoEnum.nxSysU5.getSysInfo()),Integer.parseInt(SysInfoEnum.nxSysZ5.getSysInfo()), in.length());
            BigInteger bInt = new BigInteger(Integer.parseInt(SysInfoEnum.nxSysO5.getSysInfo()), a.digest());
            return String.format("%1$032x", bInt);
        } catch (NoSuchAlgorithmException | UnsupportedEncodingException | NumberFormatException e){}
        return null;
    }

    // <sys err>
    private String sysErr(int m){
        return "#" + m;
    }


    // <sys ext ? "!important" : "el_init" -- rnxn >
    public boolean secExt() throws SysException{
        if(!secOK(INIT_DEV) || !secOK(INIT_DEV_CP) || !secOK(INIT_NAME) || !secOK(INIT_COPY))
            throw new SysException(sysErr(ERR_NOTAUTH));
        return true;
    }

    public boolean secVer() throws SysException{
        if(!secOK(INIT_VER))
            throw new SysException(sysErr(ERR_VERSION));
        return true;
    }

    //<sys bol>
    public boolean secOK(int type){
        switch(type){
            case INIT_DEV: return sec(SysInfoEnum.nxSysD5.getSysInfo()).equals(SecEnum.nD.get());
            case INIT_NAME: return sec(SysInfoEnum.nxSysN5.getSysInfo()).equals(SecEnum.nN.get());
            case INIT_COPY: return sec(SysInfoEnum.nxSysC5.getSysInfo()).equals(SecEnum.nC.get());
            case INIT_DEV_CP: return sec(SysInfoEnum.nxSysDCp.getSysInfo()).equals(SecEnum.nCP.get());
            case INIT_VER: return sec(SysInfoEnum.nxSysV5.getSysInfo()).equals(SecEnum.nV.get());
            default: return false;
        }
    }
}