PDF4QT/PdfTool/pdftooldecrypt.cpp

90 lines
2.9 KiB
C++
Raw Normal View History

2021-05-11 18:46:33 +02:00
// Copyright (C) 2021 Jakub Melka
//
2021-08-10 19:22:56 +02:00
// This file is part of PDF4QT.
2021-05-11 18:46:33 +02:00
//
2021-08-10 19:22:56 +02:00
// PDF4QT is free software: you can redistribute it and/or modify
2021-05-11 18:46:33 +02:00
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// with the written consent of the copyright owner, any later version.
//
2021-08-10 19:22:56 +02:00
// PDF4QT is distributed in the hope that it will be useful,
2021-05-11 18:46:33 +02:00
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
2021-08-10 19:22:56 +02:00
// along with PDF4QT. If not, see <https://www.gnu.org/licenses/>.
2021-05-11 18:46:33 +02:00
#include "pdftooldecrypt.h"
#include "pdfdocumentbuilder.h"
#include "pdfdocumentwriter.h"
namespace pdftool
{
static PDFToolDecryptApplication s_decryptApplication;
QString PDFToolDecryptApplication::getStandardString(StandardString standardString) const
{
switch (standardString)
{
case Command:
return "decrypt";
case Name:
return PDFToolTranslationContext::tr("Decrypt");
case Description:
return PDFToolTranslationContext::tr("Remove encryption from a document (with only owner access only).");
default:
Q_ASSERT(false);
break;
}
return QString();
}
int PDFToolDecryptApplication::execute(const PDFToolOptions& options)
{
pdf::PDFDocument document;
QByteArray sourceData;
if (!readDocument(options, document, &sourceData, true))
{
if (readDocument(options, document, &sourceData, false))
{
PDFConsole::writeError(PDFToolTranslationContext::tr("Authorization as owner failed. Encryption removal is not permitted if authorized as user only."), options.outputCodec);
}
return ErrorDocumentReading;
}
if (document.getStorage().getSecurityHandler()->getMode() == pdf::EncryptionMode::None)
{
PDFConsole::writeError(PDFToolTranslationContext::tr("Document is not encrypted."), options.outputCodec);
return ExitSuccess;
}
pdf::PDFDocumentBuilder builder(&document);
builder.removeEncryption();
builder.setSecurityHandler(pdf::PDFSecurityHandlerPointer(new pdf::PDFNoneSecurityHandler()));
document = builder.build();
pdf::PDFDocumentWriter writer(nullptr);
pdf::PDFOperationResult result = writer.write(options.document, &document, true);
if (!result)
{
PDFConsole::writeError(result.getErrorMessage(), options.outputCodec);
return ErrorDocumentWriting;
}
return ExitSuccess;
}
PDFToolAbstractApplication::Options PDFToolDecryptApplication::getOptionsFlags() const
{
return ConsoleFormat | OpenDocument;
}
} // namespace pdftool