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, 206 insertions, 0 deletions

diff --git a/include/comphelper/storagehelper.hxx b/include/comphelper/storagehelper.hxx
new file mode 100644
index 000000000..c6c47c1a5
--- /dev/null
+++ b/include/comphelper/storagehelper.hxx
@@ -0,0 +1,206 @@
+/* -*- 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/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+#ifndef INCLUDED_COMPHELPER_STORAGEHELPER_HXX
+#define INCLUDED_COMPHELPER_STORAGEHELPER_HXX
+
+#include <com/sun/star/uno/Sequence.h>
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/embed/ElementModes.hpp>
+#include <comphelper/comphelperdllapi.h>
+#include <memory>
+#include <string_view>
+
+inline constexpr OUStringLiteral PACKAGE_STORAGE_FORMAT_STRING = u"PackageFormat";
+inline constexpr OUStringLiteral ZIP_STORAGE_FORMAT_STRING = u"ZipFormat";
+inline constexpr OUStringLiteral OFOPXML_STORAGE_FORMAT_STRING = u"OFOPXMLFormat";
+
+inline constexpr OUStringLiteral PACKAGE_ENCRYPTIONDATA_SHA256UTF8 = u"PackageSHA256UTF8EncryptionKey";
+inline constexpr OUStringLiteral PACKAGE_ENCRYPTIONDATA_SHA1UTF8 = u"PackageSHA1UTF8EncryptionKey";
+inline constexpr OUStringLiteral PACKAGE_ENCRYPTIONDATA_SHA1MS1252  = u"PackageSHA1MS1252EncryptionKey";
+inline constexpr OUStringLiteral PACKAGE_ENCRYPTIONDATA_SHA1CORRECT  = u"PackageSHA1CorrectEncryptionKey";
+
+namespace com::sun::star {
+    namespace beans { struct NamedValue; }
+    namespace embed { class XStorage; }
+    namespace io {
+        class XInputStream;
+        class XOutputStream;
+        class XStream;
+    }
+    namespace lang { class XSingleServiceFactory; }
+    namespace uno { class XComponentContext; }
+}
+
+namespace comphelper {
+
+// Unfortunately - the impl.s of XStorage like to invalidate all
+// their sub streams and storages when you release references, so
+// it is necessary to keep references to all storages down the
+// path - this is 'beautiful' (TM). So we need this ugly hack:
+class COMPHELPER_DLLPUBLIC LifecycleProxy
+{
+private:
+    class Impl;
+public:
+    std::unique_ptr<Impl> m_xBadness;
+    LifecycleProxy();
+    ~LifecycleProxy();
+    // commit the storages: necessary for writes to streams to take effect!
+    void commitStorages();
+};
+
+class COMPHELPER_DLLPUBLIC OStorageHelper
+{
+public:
+    /// @throws css::uno::Exception
+    static css::uno::Reference< css::lang::XSingleServiceFactory >
+        GetStorageFactory(
+            const css::uno::Reference< css::uno::XComponentContext >& rxContext
+                            = css::uno::Reference< css::uno::XComponentContext >() );
+
+    /// @throws css::uno::Exception
+    static css::uno::Reference< css::lang::XSingleServiceFactory >
+        GetFileSystemStorageFactory(
+            const css::uno::Reference< css::uno::XComponentContext >& rxContext
+                            = css::uno::Reference< css::uno::XComponentContext >() );
+
+    /// @throws css::uno::Exception
+    static css::uno::Reference< css::embed::XStorage >
+        GetTemporaryStorage(
+            const css::uno::Reference< css::uno::XComponentContext >& rxContext
+                            = css::uno::Reference< css::uno::XComponentContext >() );
+
+    /// this one will only return Storage
+    ///
+    /// @throws css::uno::Exception
+    static css::uno::Reference< css::embed::XStorage >
+        GetStorageFromURL(
+            const OUString& aURL,
+            sal_Int32 nStorageMode,
+            const css::uno::Reference< css::uno::XComponentContext >& rxContext
+                            = css::uno::Reference< css::uno::XComponentContext >() );
+
+    /// this one will return either Storage or FileSystemStorage
+    ///
+    /// @throws css::uno::Exception
+    static css::uno::Reference< css::embed::XStorage >
+        GetStorageFromURL2(
+            const OUString& aURL,
+            sal_Int32 nStorageMode,
+            const css::uno::Reference< css::uno::XComponentContext >& rxContext
+                            = css::uno::Reference< css::uno::XComponentContext >() );
+
+    /// @throws css::uno::Exception
+    static css::uno::Reference< css::embed::XStorage >
+        GetStorageFromInputStream(
+            const css::uno::Reference < css::io::XInputStream >& xStream,
+            const css::uno::Reference< css::uno::XComponentContext >& rxContext
+                            = css::uno::Reference< css::uno::XComponentContext >() );
+
+    /// @throws css::uno::Exception
+    static css::uno::Reference< css::embed::XStorage >
+        GetStorageFromStream(
+            const css::uno::Reference < css::io::XStream >& xStream,
+            sal_Int32 nStorageMode = css::embed::ElementModes::READWRITE,
+            const css::uno::Reference< css::uno::XComponentContext >& rxContext
+                            = css::uno::Reference< css::uno::XComponentContext >() );
+
+    /// @throws css::uno::Exception
+    static void CopyInputToOutput(
+            const css::uno::Reference< css::io::XInputStream >& xInput,
+            const css::uno::Reference< css::io::XOutputStream >& xOutput );
+
+    /// @throws css::uno::Exception
+    static css::uno::Reference< css::io::XInputStream >
+        GetInputStreamFromURL(
+            const OUString& aURL,
+            const css::uno::Reference< css::uno::XComponentContext >& context );
+
+    /// @throws css::uno::Exception
+    static void SetCommonStorageEncryptionData(
+            const css::uno::Reference< css::embed::XStorage >& xStorage,
+            const css::uno::Sequence< css::beans::NamedValue >& aEncryptionData );
+
+    // the following method supports only storages of OOo formats
+    /// @throws css::uno::Exception
+    static sal_Int32 GetXStorageFormat(
+            const css::uno::Reference< css::embed::XStorage >& xStorage );
+
+    /// @throws css::uno::Exception
+    static css::uno::Reference< css::embed::XStorage >
+        GetStorageOfFormatFromURL(
+            const OUString& aFormat,
+            const OUString& aURL,
+            sal_Int32 nStorageMode,
+            const css::uno::Reference< css::uno::XComponentContext >& rxContext
+                            = css::uno::Reference< css::uno::XComponentContext >() );
+
+    /// @throws css::uno::Exception
+    static css::uno::Reference< css::embed::XStorage >
+        GetStorageOfFormatFromInputStream(
+            const OUString& aFormat,
+            const css::uno::Reference < css::io::XInputStream >& xStream,
+            const css::uno::Reference< css::uno::XComponentContext >& rxContext
+                            = css::uno::Reference< css::uno::XComponentContext >(),
+            bool bRepairStorage = false );
+
+    /// @throws css::uno::Exception
+    static css::uno::Reference< css::embed::XStorage >
+        GetStorageOfFormatFromStream(
+            const OUString& aFormat,
+            const css::uno::Reference < css::io::XStream >& xStream,
+            sal_Int32 nStorageMode = css::embed::ElementModes::READWRITE,
+            const css::uno::Reference< css::uno::XComponentContext >& rxContext
+                            = css::uno::Reference< css::uno::XComponentContext >(),
+            bool bRepairStorage = false );
+
+    static css::uno::Sequence< css::beans::NamedValue >
+        CreatePackageEncryptionData(
+            std::u16string_view aPassword );
+
+    static css::uno::Sequence< css::beans::NamedValue >
+        CreateGpgPackageEncryptionData();
+
+    static bool IsValidZipEntryFileName( std::u16string_view aName, bool bSlashAllowed );
+    static bool IsValidZipEntryFileName( const sal_Unicode *pChar, sal_Int32 nLength, bool bSlashAllowed );
+
+    static bool PathHasSegment( std::u16string_view aPath, std::u16string_view aSegment );
+
+    // Methods to allow easy use of hierarchical names inside storages
+
+    static css::uno::Reference< css::embed::XStorage > GetStorageAtPath(
+        const css::uno::Reference< css::embed::XStorage > &xStorage,
+        std::u16string_view aPath, sal_uInt32 nOpenMode, LifecycleProxy const &rNastiness );
+    static css::uno::Reference< css::io::XStream > GetStreamAtPath(
+        const css::uno::Reference< css::embed::XStorage > &xStorage,
+        std::u16string_view aPath, sal_uInt32 nOpenMode, LifecycleProxy const &rNastiness );
+    static css::uno::Reference< css::io::XStream > GetStreamAtPackageURL(
+        const css::uno::Reference< css::embed::XStorage > &xStorage,
+        const OUString& rURL, sal_uInt32 const nOpenMode,
+        LifecycleProxy const & rNastiness );
+
+    static OUString
+    GetODFVersionFromStorage(const css::uno::Reference<css::embed::XStorage>& xStorage);
+};
+
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */