include/oox/crypto/DocumentDecryption.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  */
  10
  11 #ifndef INCLUDED_OOX_CRYPTO_DOCUMENTDECRYPTION_HXX
  12 #define INCLUDED_OOX_CRYPTO_DOCUMENTDECRYPTION_HXX
  13
  14 #include <oox/dllapi.h>
  15
  16 #include <memory>
  17
  18 #include <com/sun/star/uno/Reference.hxx>
  19 #include <com/sun/star/uno/Sequence.hxx>
  20 #include <oox/crypto/CryptoEngine.hxx>
  21 #include <rtl/ustring.hxx>
  22
  23 namespace com { namespace sun { namespace star {
  24     namespace beans { struct NamedValue; }
  25     namespace io { class XInputStream; }
  26     namespace io { class XStream; }
  27     namespace uno { class XComponentContext; }
  28 } } }
  29
  30 namespace oox { class BinaryInputStream; }
  31 namespace oox { namespace ole { class OleStorage; } }
  32
  33 namespace oox {
  34 namespace core {
  35
  36 class OOX_DLLPUBLIC DocumentDecryption
  37 {
  38 private:
  39     css::uno::Reference< css::uno::XComponentContext > mxContext;
  40
  41     enum CryptoType
  42     {
  43         UNKNOWN,
  44         STANDARD_2007,
  45         AGILE
  46     };
  47
  48     oox::ole::OleStorage&           mrOleStorage;
  49     std::unique_ptr<CryptoEngine>   mEngine;
  50     CryptoType                      mCryptoType;
  51
  52     bool readAgileEncryptionInfo( css::uno::Reference< css::io::XInputStream >& rStream );
  53     bool readStandard2007EncryptionInfo( BinaryInputStream& rStream );
  54
  55 public:
  56     DocumentDecryption(
  57         oox::ole::OleStorage& rOleStorage,
  58         css::uno::Reference< css::uno::XComponentContext > const & xContext);
  59
  60     bool decrypt(const css::uno::Reference< css::io::XStream >& xDocumentStream);
  61     bool readEncryptionInfo();
  62     bool generateEncryptionKey(const OUString& rPassword);
  63
  64     css::uno::Sequence< css::beans::NamedValue > createEncryptionData(const OUString& rPassword);
  65
  66 };
  67
  68 } // namespace core
  69 } // namespace oox
  70
  71 #endif
  72
  73 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */