Extract metadata tool

PdfTool/pdftoolinfometadata.cpp

@@ -0,0 +1,82 @@
+//    Copyright (C) 2020 Jakub Melka
+//
+//    This file is part of PdfForQt.
+//
+//    PdfForQt is free software: you can redistribute it and/or modify
+//    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
+//    (at your option) any later version.
+//
+//    PdfForQt is distributed in the hope that it will be useful,
+//    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
+//    along with PDFForQt.  If not, see <https://www.gnu.org/licenses/>.
+
+#include "pdftoolinfometadata.h"
+#include "pdfexception.h"
+
+namespace pdftool
+{
+
+static PDFToolInfoMetadataApplication s_infoMetadataApplication;
+
+QString PDFToolInfoMetadataApplication::getStandardString(StandardString standardString) const
+{
+    switch (standardString)
+    {
+        case Command:
+            return "info-metadata";
+
+        case Name:
+            return PDFToolTranslationContext::tr("Extract document metadata");
+
+        case Description:
+            return PDFToolTranslationContext::tr("Extract document metadata (embedded xml stream).");
+
+        default:
+            Q_ASSERT(false);
+            break;
+    }
+
+    return QString();
+}
+
+int PDFToolInfoMetadataApplication::execute(const PDFToolOptions& options)
+{
+    pdf::PDFDocument document;
+    QByteArray sourceData;
+    if (!readDocument(options, document, &sourceData))
+    {
+        return ErrorDocumentReading;
+    }
+
+    pdf::PDFObject metadata = document.getObject(document.getCatalog()->getMetadata());
+    if (metadata.isStream())
+    {
+        try
+        {
+            QByteArray rawData = document.getDecodedStream(metadata.getStream());
+            PDFConsole::writeData(rawData);
+        }
+        catch (pdf::PDFException e)
+        {
+            PDFConsole::writeError(e.getMessage(), options.outputCodec);
+        }
+    }
+    else
+    {
+        PDFConsole::writeError(PDFToolTranslationContext::tr("Metadata not found in document."), options.outputCodec);
+    }
+
+    return ExitSuccess;
+}
+
+PDFToolAbstractApplication::Options PDFToolInfoMetadataApplication::getOptionsFlags() const
+{
+    return ConsoleFormat | OpenDocument;
+}
+
+}   // namespace pdftool