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HBCI4j - Home Banking Computer Interface for Java - Clone from https://github.com/hbci4j/hbci4java

There is a newer version: 3.5.46

/*  $Id: RHBCIVersion.java,v 1.1 2011/05/04 22:37:57 willuhn Exp $

    This file is part of HBCI4Java
    Copyright (C) 2001-2008  Stefan Palme

    HBCI4Java 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
    (at your option) any later version.

    HBCI4Java 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
*/

package org.kapott.hbci.rewrite;

import lombok.extern.slf4j.Slf4j;
import org.kapott.hbci.status.HBCIMsgStatus;

/**
 * Korrektur fehlender HBCI-Versionsnummern. Einige HBCI-Server
 * übermitteln in Fehlernachrichten, die "globale" Fehler in der
 * Kundennachricht beschreiben, im Datenelement "HBCI-Version"
 * des Nachrichtenkopfes den Wert "0". Da HBCI4Java an
 * dieser Stelle immer den gleichen Wert wie in der gesendeten
 * Nachricht erwartet, wird in diesem Fall der
 * erwartete Wert eingetragen.
 * Die Überprüfung, ob die HBCI-Versionsnummern in gesendeter und
 * empfangender Nachricht übereinstimmen, kann mit dem Kernel-Parameter
 * client.errors.ignoreMsgCheckErrors abgeschaltet
 * werden (siehe dazu Beschreibung in
 * {@link org.kapott.hbci.manager.HBCIUtils})
 */
@Slf4j
public class RHBCIVersion extends Rewrite {

    @Override
    public String incomingCrypted(String st, HBCIMsgStatus msgStatus, String msgName) {
        int idx = st.indexOf("+");
        if (idx != -1) { // + after SegHead found
            idx = st.indexOf("+", idx + 1);
            if (idx != -1) { // + after msgsize found
                int idx2 = st.indexOf("+", idx + 1);
                if (idx2 != -1) { // + after hbciversion found
                    String version = st.substring(idx + 1, idx2);
                    String origVersion = msgStatus.getData().get("orig_" + msgName + ".MsgHead.hbciversion");

                    if (version.length() == 0 || version.equals("0")) {
                        log.warn("received HBCI version of message ('" + version + "') is incorrect - replacing it " +
                            "with " + origVersion);
                        st = new StringBuffer(st).replace(idx + 1, idx2, origVersion).toString();
                    }
                }
            }
        }
        return st;
    }
}