Files
PDF4QT/PdfTool/pdftoolencrypt.cpp
2025-04-27 12:39:06 +02:00

104 lines
3.5 KiB
C++

// MIT License
//
// Copyright (c) 2018-2025 Jakub Melka and Contributors
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
#include "pdftoolencrypt.h"
#include "pdfdocumentbuilder.h"
#include "pdfdocumentwriter.h"
namespace pdftool
{
static PDFToolEncryptApplication s_encryptApplication;
QString PDFToolEncryptApplication::getStandardString(StandardString standardString) const
{
switch (standardString)
{
case Command:
return "encrypt";
case Name:
return PDFToolTranslationContext::tr("Encrypt");
case Description:
return PDFToolTranslationContext::tr("Encrypt the document (with only owner access only).");
default:
Q_ASSERT(false);
break;
}
return QString();
}
int PDFToolEncryptApplication::execute(const PDFToolOptions& options)
{
pdf::PDFSecurityHandlerFactory::SecuritySettings settings;
settings.algorithm = options.encryptionAlgorithm;
settings.encryptContents = options.encryptionContents;
settings.userPassword = options.encryptionUserPassword;
settings.ownerPassword = options.encryptionOwnerPassword;
settings.permissions = options.encryptionPermissions;
QString errorMessage;
if (!pdf::PDFSecurityHandlerFactory::validate(settings, &errorMessage))
{
PDFConsole::writeError(errorMessage, options.outputCodec);
return ErrorEncryptionSettings;
}
pdf::PDFSecurityHandlerPointer securityHandler = pdf::PDFSecurityHandlerFactory::createSecurityHandler(settings);
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 change is not permitted if authorized as user only."), options.outputCodec);
}
return ErrorDocumentReading;
}
pdf::PDFDocumentBuilder builder(&document);
builder.setSecurityHandler(qMove(securityHandler));
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 PDFToolEncryptApplication::getOptionsFlags() const
{
return ConsoleFormat | OpenDocument | Encrypt;
}
} // namespace pdftool