/* $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 org.kapott.hbci.manager.HBCIUtils;
import org.kapott.hbci.manager.MsgGen;
public final class RWrongSequenceNumbers
extends Rewrite
{
public String incomingClearText(String st,MsgGen gen)
{
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) {
HBCIUtils.log("found wrong sequence number "+seq+"; replacing with "+correctSeq,HBCIUtils.LOG_WARN);
sb.replace(idx+1,idx2,Integer.toString(correctSeq));
}
i=idx2;
}
correctSeq++;
}
quoteNext=!quoteNext && ch=='?';
}
return sb.toString();
}
}