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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: RWrongSequenceNumbers.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;

@Slf4j
public final class RWrongSequenceNumbers extends Rewrite {

    @Override
    public String incomingClearText(String st) {
        StringBuffer sb = new StringBuffer(st);

        int idx;
        boolean quoteNext = false;
        int correctSeq = 1;

        for (int i = 0; i < sb.length(); i++) {
            char ch = sb.charAt(i);

            if (!quoteNext && ch == '@') {
                // skip binary values
                idx = sb.indexOf("@", i + 1);
                String len_st = sb.substring(i + 1, idx);
                i += Integer.parseInt(len_st) + 1 + len_st.length();
            } else if (!quoteNext && ch == '\'' || i == 0) {
                idx = sb.indexOf(":", i + 1);
                if (idx != -1) {
                    int idx2 = sb.indexOf(":", idx + 1);
                    int seq = Integer.parseInt(sb.substring(idx + 1, idx2));
                    if (seq != correctSeq) {
                        log.warn("found wrong sequence number " + seq + "; replacing with " + correctSeq);
                        sb.replace(idx + 1, idx2, Integer.toString(correctSeq));
                    }
                    i = idx2;
                }
                correctSeq++;
            }
            quoteNext = !quoteNext && ch == '?';
        }

        return sb.toString();
    }
}