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Fix signature

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This commit is contained in:
Svetlana Kulikova
2023-10-07 11:07:29 +03:00
parent 4692e6ef01
commit c80acbd26d
5 changed files with 32 additions and 15 deletions
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6
PdfFile/PdfReader.cpp
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@ -803,13 +803,12 @@ BYTE* CPdfReader::VerifySign(const std::wstring& sFile, ICertificate* pCertifica
{
AcroFormField* pField = pAcroForms->getField(i);
AcroFormFieldType oType = pField->getAcroFormFieldType();
if (oType != acroFormFieldSignature || nWidget >= 0 && i != nWidget)
if (oType != acroFormFieldSignature || (nWidget >= 0 && i != nWidget))
continue;
Object oObj, oObj1;
if (!pField->fieldLookup("V", &oObj)->isDict() || !oObj.dictLookup("Type", &oObj1)->isName("Sig"))
if (!pField->fieldLookup("V", &oObj)->isDict())
continue;
oObj1.free();
std::vector<int> arrByteOffset, arrByteLength;
if (oObj.dictLookup("ByteRange", &oObj1)->isArray())
@ -836,6 +835,7 @@ BYTE* CPdfReader::VerifySign(const std::wstring& sFile, ICertificate* pCertifica
int nByteOffset = 0;
for (int j = 0; j < arrByteOffset.size(); ++j)
{
// TODO проверка длины файла и ByteRange
memcpy(pDataForVerify + nByteOffset, pFileData + arrByteOffset[j], arrByteLength[j]);
nByteOffset += arrByteLength[j];
}