Here's some quick code, replace the beginning of the method
"visitFromDictionary(COSDictionary obj)" with it
if (!reachedSignature && incrementalUpdate)
{
COSBase itemType = obj.getItem(COSName.TYPE);
if (COSName.SIG.equals(itemType) ||
COSName.DOC_TIME_STAMP.equals(itemType))
{
COSArray byteRange = obj.getCOSArray(COSName.BYTERANGE);
if (byteRange != null && byteRange.size() == 4)
{
COSBase base2 = byteRange.getObject(2);
COSBase base3 = byteRange.getObject(3);
if (base2 instanceof COSInteger && base3 instanceof COSInteger)
{
long br2 = ((COSInteger) base2).longValue();
long br3 = ((COSInteger) base3).longValue();
if (br2 + br3 > incrementalInput.length())
{
reachedSignature = true;
}
else
{
//TODO log warning
}
}
}
}
}
Tilman
On 27.09.2022 08:27, Tilman Hausherr wrote:
I'm thinking of adding some code that checks whether it is an "old"
signature by comparing it to these huge values that we use (or better,
by comparing value[2] + value[3] to the length of the input file).
This would then skip these old signatures. Best place would be the
segment where "reachedSignature = true" is hit. And also add a warning
when we encounter such old signatures, as this shouldn't happen in
incremental save.
Tilman
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
