Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 61 insertions, 0 deletions

diff --git a/include/oox/crypto/Standard2007Engine.hxx b/include/oox/crypto/Standard2007Engine.hxx
new file mode 100644
index 000000000..8a7aec3e6
--- /dev/null
+++ b/include/oox/crypto/Standard2007Engine.hxx
@@ -0,0 +1,61 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ */
+
+#ifndef INCLUDED_OOX_CRYPTO_STANDARD2007ENGINE_HXX
+#define INCLUDED_OOX_CRYPTO_STANDARD2007ENGINE_HXX
+
+#include <oox/dllapi.h>
+#include <oox/crypto/CryptoEngine.hxx>
+#include <filter/msfilter/mscodec.hxx>
+#include <rtl/ustring.hxx>
+#include <sal/types.h>
+
+namespace oox {
+    class BinaryXInputStream;
+    class BinaryXOutputStream;
+}
+
+namespace oox::crypto {
+
+class OOX_DLLPUBLIC Standard2007Engine final : public CryptoEngine
+{
+    msfilter::StandardEncryptionInfo mInfo;
+
+    bool generateVerifier();
+    bool calculateEncryptionKey(const OUString& rPassword);
+
+public:
+    Standard2007Engine() = default;
+
+    bool readEncryptionInfo(css::uno::Reference<css::io::XInputStream> & rxInputStream) override;
+
+    virtual bool generateEncryptionKey(OUString const & rPassword) override;
+
+    virtual bool decrypt(
+                    BinaryXInputStream& aInputStream,
+                    BinaryXOutputStream& aOutputStream) override;
+
+    bool checkDataIntegrity() override;
+
+    void encrypt(const css::uno::Reference<css::io::XInputStream>&  rxInputStream,
+                 css::uno::Reference<css::io::XOutputStream>& rxOutputStream,
+                 sal_uInt32 nSize) override;
+
+    virtual void writeEncryptionInfo(BinaryXOutputStream& rStream) override;
+
+    virtual bool setupEncryption(OUString const & rPassword) override;
+
+};
+
+} // namespace oox::crypto
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */