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Encryption settings dialog, authorization as owner

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Jakub Melka
2021-05-24 19:29:02 +02:00
parent 759d5c7793
commit 936fe2fbe7
9 changed files with 342 additions and 27 deletions
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34
Pdf4QtViewer/pdfprogramcontroller.cpp
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@ -1133,6 +1133,40 @@ void PDFProgramController::onActionOptimizeTriggered()
void PDFProgramController::onActionEncryptionTriggered()
{
// Check that we have owner acces to the document
const pdf::PDFSecurityHandler* securityHandler = m_pdfDocument->getStorage().getSecurityHandler();
pdf::PDFSecurityHandler::AuthorizationResult authorizationResult = securityHandler->getAuthorizationResult();
if (authorizationResult != pdf::PDFSecurityHandler::AuthorizationResult::OwnerAuthorized &&
authorizationResult != pdf::PDFSecurityHandler::AuthorizationResult::NoAuthorizationRequired)
{
// Jakub Melka: we must authorize as owner, otherwise we can't continue,
// because we don't have sufficient permissions.
pdf::PDFSecurityHandlerPointer clonedSecurityHandler(securityHandler->clone());
auto queryPassword = [this](bool* ok)
{
QString result;
*ok = false;
onQueryPasswordRequest(&result, ok);
return result;
};
authorizationResult = clonedSecurityHandler->authenticate(queryPassword, true);
if (authorizationResult != pdf::PDFSecurityHandler::AuthorizationResult::OwnerAuthorized)
{
QMessageBox::critical(m_mainWindow, QApplication::applicationDisplayName(), tr("Permission to change document security is denied."));
return;
}
pdf::PDFObjectStorage storage = m_pdfDocument->getStorage();
storage.setSecurityHandler(qMove(clonedSecurityHandler));
pdf::PDFDocumentPointer pointer(new pdf::PDFDocument(qMove(storage), m_pdfDocument->getInfo()->version));
pdf::PDFModifiedDocument document(qMove(pointer), m_optionalContentActivity, pdf::PDFModifiedDocument::Reset);
onDocumentModified(qMove(document));
}
PDFEncryptionSettingsDialog dialog(m_mainWindow);
dialog.exec();
}