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, 694 insertions, 0 deletions

diff --git a/ucb/source/core/FileAccess.cxx b/ucb/source/core/FileAccess.cxx
new file mode 100644
index 000000000..24674ac07
--- /dev/null
+++ b/ucb/source/core/FileAccess.cxx
@@ -0,0 +1,694 @@
+/* -*- 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 .
+ */
+
+#include <cppuhelper/exc_hlp.hxx>
+#include <comphelper/processfactory.hxx>
+#include <comphelper/sequence.hxx>
+#include <cppuhelper/factory.hxx>
+#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/supportsservice.hxx>
+
+#include <tools/urlobj.hxx>
+#include <ucbhelper/content.hxx>
+#include <unotools/streamwrap.hxx>
+#include <tools/stream.hxx>
+
+#include <com/sun/star/beans/Property.hpp>
+#include <com/sun/star/container/XChild.hpp>
+#include <com/sun/star/io/XActiveDataSink.hpp>
+#include <com/sun/star/io/XActiveDataStreamer.hpp>
+#include <com/sun/star/lang/WrappedTargetRuntimeException.hpp>
+#include <com/sun/star/lang/XServiceInfo.hpp>
+#include <com/sun/star/sdbc/XResultSet.hpp>
+#include <com/sun/star/ucb/ContentCreationException.hpp>
+#include <com/sun/star/ucb/CommandFailedException.hpp>
+#include <com/sun/star/ucb/ContentInfo.hpp>
+#include <com/sun/star/ucb/ContentInfoAttribute.hpp>
+#include <com/sun/star/ucb/InsertCommandArgument.hpp>
+#include <com/sun/star/ucb/InteractiveIOException.hpp>
+#include <com/sun/star/ucb/NameClash.hpp>
+#include <com/sun/star/ucb/OpenCommandArgument2.hpp>
+#include <com/sun/star/ucb/OpenMode.hpp>
+#include <com/sun/star/ucb/XCommandEnvironment.hpp>
+#include <com/sun/star/ucb/XContent.hpp>
+#include <com/sun/star/ucb/XContentAccess.hpp>
+#include <com/sun/star/ucb/XSimpleFileAccess3.hpp>
+#include <com/sun/star/util/theMacroExpander.hpp>
+
+#include <vector>
+
+constexpr OUStringLiteral SERVICE_NAME = u"com.sun.star.ucb.SimpleFileAccess";
+
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::io;
+using namespace ::com::sun::star::ucb;
+using namespace ::com::sun::star::sdbc;
+using namespace ::com::sun::star::task;
+using namespace ::com::sun::star::util;
+using namespace ::com::sun::star::beans;
+using namespace ::com::sun::star::registry;
+using namespace ::com::sun::star::container;
+
+using ::std::vector;
+
+namespace
+{
+
+// Implementation XSimpleFileAccess
+typedef cppu::WeakImplHelper<XSimpleFileAccess3, css::lang::XServiceInfo>
+    FileAccessHelper;
+class OCommandEnvironment;
+
+class OFileAccess : public FileAccessHelper
+{
+    Reference< XComponentContext >      m_xContext;
+    rtl::Reference<OCommandEnvironment> mxEnvironment;
+
+    /// @throws CommandAbortedException
+    /// @throws Exception
+    /// @throws RuntimeException
+    void transferImpl( const OUString& rSource, std::u16string_view rDest, bool bMoveData );
+    /// @throws Exception
+    bool createNewFile( const OUString & rParentURL,
+                        const OUString & rTitle,
+                        const Reference< XInputStream >& data );
+
+public:
+    explicit OFileAccess( const Reference< XComponentContext > & xContext )
+        : m_xContext( xContext) {}
+    // Methods
+    virtual void SAL_CALL copy( const OUString& SourceURL, const OUString& DestURL ) override;
+    virtual void SAL_CALL move( const OUString& SourceURL, const OUString& DestURL ) override;
+    virtual void SAL_CALL kill( const OUString& FileURL ) override;
+    virtual sal_Bool SAL_CALL isFolder( const OUString& FileURL ) override;
+    virtual sal_Bool SAL_CALL isReadOnly( const OUString& FileURL ) override;
+    virtual void SAL_CALL setReadOnly( const OUString& FileURL, sal_Bool bReadOnly ) override;
+    virtual void SAL_CALL createFolder( const OUString& NewFolderURL ) override;
+    virtual sal_Int32 SAL_CALL getSize( const OUString& FileURL ) override;
+    virtual OUString SAL_CALL getContentType( const OUString& FileURL ) override;
+    virtual css::util::DateTime SAL_CALL getDateTimeModified( const OUString& FileURL ) override;
+    virtual css::uno::Sequence< OUString > SAL_CALL getFolderContents( const OUString& FolderURL, sal_Bool bIncludeFolders ) override;
+    virtual sal_Bool SAL_CALL exists( const OUString& FileURL ) override;
+    virtual css::uno::Reference< css::io::XInputStream > SAL_CALL openFileRead( const OUString& FileURL ) override;
+    virtual css::uno::Reference< css::io::XOutputStream > SAL_CALL openFileWrite( const OUString& FileURL ) override;
+    virtual css::uno::Reference< css::io::XStream > SAL_CALL openFileReadWrite( const OUString& FileURL ) override;
+    virtual void SAL_CALL setInteractionHandler( const css::uno::Reference< css::task::XInteractionHandler >& Handler ) override;
+    virtual void SAL_CALL writeFile( const OUString& FileURL, const css::uno::Reference< css::io::XInputStream >& data ) override;
+    virtual sal_Bool SAL_CALL isHidden( const OUString& FileURL ) override;
+    virtual void SAL_CALL setHidden( const OUString& FileURL, sal_Bool bHidden ) override;
+
+    OUString SAL_CALL getImplementationName() override
+    { return "com.sun.star.comp.ucb.SimpleFileAccess"; }
+
+    sal_Bool SAL_CALL supportsService(OUString const & ServiceName) override
+    { return cppu::supportsService(this, ServiceName); }
+
+    css::uno::Sequence<OUString> SAL_CALL getSupportedServiceNames() override
+    { return { SERVICE_NAME }; }
+};
+
+// Implementation XActiveDataSink
+
+class OActiveDataSink : public cppu::WeakImplHelper< XActiveDataSink >
+{
+    Reference< XInputStream > mxStream;
+
+public:
+
+    // Methods
+    virtual void SAL_CALL setInputStream( const Reference< XInputStream >& aStream ) override;
+    virtual Reference< XInputStream > SAL_CALL getInputStream(  ) override;
+};
+
+// Implementation XActiveDataStreamer
+
+class OActiveDataStreamer : public cppu::WeakImplHelper< XActiveDataStreamer >
+{
+    Reference< XStream > mxStream;
+
+public:
+
+    // Methods
+    virtual void SAL_CALL setStream( const Reference< XStream >& aStream ) override;
+    virtual Reference< XStream > SAL_CALL getStream() override;
+};
+
+// Implementation XCommandEnvironment
+
+class OCommandEnvironment : public cppu::WeakImplHelper< XCommandEnvironment >
+{
+    Reference< XInteractionHandler > mxInteraction;
+
+public:
+    void setHandler( const Reference< XInteractionHandler >& xInteraction_ )
+    {
+        mxInteraction = xInteraction_;
+    }
+
+    // Methods
+    virtual Reference< XInteractionHandler > SAL_CALL getInteractionHandler() override;
+    virtual Reference< XProgressHandler > SAL_CALL getProgressHandler() override;
+};
+
+void OActiveDataSink::setInputStream( const Reference< XInputStream >& aStream )
+{
+    mxStream = aStream;
+}
+
+Reference< XInputStream > OActiveDataSink::getInputStream()
+{
+    return mxStream;
+}
+
+void OActiveDataStreamer::setStream( const Reference< XStream >& aStream )
+{
+    mxStream = aStream;
+}
+
+Reference< XStream > OActiveDataStreamer::getStream()
+{
+    return mxStream;
+}
+
+Reference< XInteractionHandler > OCommandEnvironment::getInteractionHandler()
+{
+    return mxInteraction;
+}
+
+Reference< XProgressHandler > OCommandEnvironment::getProgressHandler()
+{
+    Reference< XProgressHandler > xRet;
+    return xRet;
+}
+
+void OFileAccess::transferImpl( const OUString& rSource,
+                                std::u16string_view rDest,
+                                bool bMoveData )
+{
+    // SfxContentHelper::Transfer_Impl
+    INetURLObject aSourceObj( rSource, INetProtocol::File );
+    INetURLObject aDestObj( rDest, INetProtocol::File );
+    OUString aName = aDestObj.getName(
+        INetURLObject::LAST_SEGMENT, true, INetURLObject::DecodeMechanism::WithCharset );
+    OUString aDestURL;
+    OUString aSourceURL = aSourceObj.GetMainURL( INetURLObject::DecodeMechanism::NONE );
+    if ( aDestObj.removeSegment() )
+    {
+        // hierarchical URL.
+
+        aDestObj.setFinalSlash();
+        aDestURL = aDestObj.GetMainURL( INetURLObject::DecodeMechanism::NONE );
+    }
+    else
+    {
+        // non-hierarchical URL
+
+        // #i29648#
+
+
+        if ( aDestObj.GetProtocol() == INetProtocol::VndSunStarExpand )
+        {
+            // Hack: Expand destination URL using Macro Expander and try again
+            //       with the hopefully hierarchical expanded URL...
+
+            try
+            {
+                Reference< XMacroExpander > xExpander = theMacroExpander::get(m_xContext);
+
+                aDestURL = xExpander->expandMacros(
+                    aDestObj.GetURLPath( INetURLObject::DecodeMechanism::WithCharset ) );
+            }
+            catch ( Exception const & )
+            {
+                css::uno::Any anyEx = cppu::getCaughtException();
+                throw css::lang::WrappedTargetRuntimeException(
+                    "OFileAccess::transferrImpl - Unable to obtain destination folder URL!",
+                    static_cast< cppu::OWeakObject * >( this ), anyEx );
+            }
+
+            transferImpl( rSource, aDestURL, bMoveData );
+            return;
+        }
+
+        throw RuntimeException(
+               "OFileAccess::transferrImpl - Unable to obtain destination folder URL!",
+                static_cast< cppu::OWeakObject * >( this ) );
+
+    }
+
+    ucbhelper::Content aDestPath( aDestURL,   mxEnvironment, comphelper::getProcessComponentContext() );
+    ucbhelper::Content aSrc     ( aSourceURL, mxEnvironment, comphelper::getProcessComponentContext() );
+
+    try
+    {
+        aDestPath.transferContent(aSrc,
+                                        bMoveData
+                                         ? ucbhelper::InsertOperation::Move
+                                         : ucbhelper::InsertOperation::Copy,
+                                        aName,
+                                        css::ucb::NameClash::OVERWRITE);
+    }
+    catch ( css::ucb::CommandFailedException const & )
+    {
+        // Interaction Handler already handled the error that has occurred...
+    }
+}
+
+void OFileAccess::copy( const OUString& SourceURL, const OUString& DestURL )
+{
+    transferImpl( SourceURL, DestURL, false );
+}
+
+void OFileAccess::move( const OUString& SourceURL, const OUString& DestURL )
+{
+    transferImpl( SourceURL, DestURL, true );
+}
+
+void OFileAccess::kill( const OUString& FileURL )
+{
+    // SfxContentHelper::Kill
+    INetURLObject aDeleteObj( FileURL, INetProtocol::File );
+    ucbhelper::Content aCnt( aDeleteObj.GetMainURL( INetURLObject::DecodeMechanism::NONE ), mxEnvironment, comphelper::getProcessComponentContext() );
+    try
+    {
+        aCnt.executeCommand( "delete", Any( true ) );
+    }
+    catch ( css::ucb::CommandFailedException const & )
+    {
+        // Interaction Handler already handled the error that has occurred...
+    }
+}
+
+sal_Bool OFileAccess::isFolder( const OUString& FileURL )
+{
+    bool bRet = false;
+    try
+    {
+        INetURLObject aURLObj( FileURL, INetProtocol::File );
+        ucbhelper::Content aCnt( aURLObj.GetMainURL( INetURLObject::DecodeMechanism::NONE ), mxEnvironment, comphelper::getProcessComponentContext() );
+        bRet = aCnt.isFolder();
+    }
+    catch (const Exception &) {}
+    return bRet;
+}
+
+sal_Bool OFileAccess::isReadOnly( const OUString& FileURL )
+{
+    INetURLObject aURLObj( FileURL, INetProtocol::File );
+    ucbhelper::Content aCnt( aURLObj.GetMainURL( INetURLObject::DecodeMechanism::NONE ), mxEnvironment, comphelper::getProcessComponentContext() );
+    Any aRetAny = aCnt.getPropertyValue("IsReadOnly");
+    bool bRet = false;
+    aRetAny >>= bRet;
+    return bRet;
+}
+
+void OFileAccess::setReadOnly( const OUString& FileURL, sal_Bool bReadOnly )
+{
+    INetURLObject aURLObj( FileURL, INetProtocol::File );
+    ucbhelper::Content aCnt( aURLObj.GetMainURL( INetURLObject::DecodeMechanism::NONE ), mxEnvironment, comphelper::getProcessComponentContext() );
+    aCnt.setPropertyValue("IsReadOnly", Any(bReadOnly) );
+}
+
+void OFileAccess::createFolder( const OUString& NewFolderURL )
+{
+    // Does the folder already exist?
+    if( NewFolderURL.isEmpty() || isFolder( NewFolderURL ) )
+        return;
+
+    // SfxContentHelper::MakeFolder
+    INetURLObject aURL( NewFolderURL, INetProtocol::File );
+    OUString aTitle = aURL.getName( INetURLObject::LAST_SEGMENT, true, INetURLObject::DecodeMechanism::WithCharset );
+    if ( !aTitle.isEmpty() )
+    {
+        aURL.removeSegment();
+
+        // Does the base folder exist? Otherwise create it first
+        OUString aBaseFolderURLStr = aURL.GetMainURL( INetURLObject::DecodeMechanism::NONE );
+        if( !isFolder( aBaseFolderURLStr ) )
+        {
+            createFolder( aBaseFolderURLStr );
+        }
+    }
+
+    ucbhelper::Content aCnt( aURL.GetMainURL( INetURLObject::DecodeMechanism::NONE ), mxEnvironment, comphelper::getProcessComponentContext() );
+
+    const Sequence< ContentInfo > aInfo = aCnt.queryCreatableContentsInfo();
+
+    for ( const ContentInfo & rCurr : aInfo )
+    {
+        // Simply look for the first KIND_FOLDER...
+        if ( rCurr.Attributes & ContentInfoAttribute::KIND_FOLDER )
+        {
+            // Make sure the only required bootstrap property is "Title",
+            const Sequence< Property > & rProps = rCurr.Properties;
+            if ( rProps.getLength() != 1 )
+                continue;
+
+            if ( rProps[ 0 ].Name != "Title" )
+                continue;
+
+            ucbhelper::Content aNew;
+            try
+            {
+                if ( !aCnt.insertNewContent( rCurr.Type, { "Title" }, { Any(aTitle) }, aNew ) )
+                    continue;
+
+                // Success. We're done.
+                return;
+            }
+            catch ( css::ucb::CommandFailedException const & )
+            {
+                // Interaction Handler already handled the error that has occurred...
+                continue;
+            }
+        }
+    }
+}
+
+sal_Int32 OFileAccess::getSize( const OUString& FileURL )
+{
+    // SfxContentHelper::GetSize
+    sal_Int32 nSize = 0;
+    sal_Int64 nTemp = 0;
+    INetURLObject aObj( FileURL, INetProtocol::File );
+    ucbhelper::Content aCnt( aObj.GetMainURL( INetURLObject::DecodeMechanism::NONE ), mxEnvironment, comphelper::getProcessComponentContext() );
+    aCnt.getPropertyValue( "Size" ) >>= nTemp;
+    nSize = static_cast<sal_Int32>(nTemp);
+    return nSize;
+}
+
+OUString OFileAccess::getContentType( const OUString& FileURL )
+{
+    INetURLObject aObj( FileURL, INetProtocol::File );
+    ucbhelper::Content aCnt( aObj.GetMainURL( INetURLObject::DecodeMechanism::NONE ), mxEnvironment, comphelper::getProcessComponentContext() );
+
+    Reference< XContent > xContent = aCnt.get();
+    OUString aTypeStr = xContent->getContentType();
+    return aTypeStr;
+}
+
+css::util::DateTime OFileAccess::getDateTimeModified( const OUString& FileURL )
+{
+    INetURLObject aFileObj( FileURL, INetProtocol::File );
+    css::util::DateTime aDateTime;
+
+    Reference< XCommandEnvironment > aCmdEnv;
+    ucbhelper::Content aYoung( aFileObj.GetMainURL( INetURLObject::DecodeMechanism::NONE ), aCmdEnv, comphelper::getProcessComponentContext() );
+    aYoung.getPropertyValue("DateModified") >>= aDateTime;
+    return aDateTime;
+}
+
+Sequence< OUString > OFileAccess::getFolderContents( const OUString& FolderURL, sal_Bool bIncludeFolders )
+{
+    // SfxContentHelper::GetFolderContents
+
+    std::vector<OUString> aFiles;
+    INetURLObject aFolderObj( FolderURL, INetProtocol::File );
+
+    ucbhelper::Content aCnt( aFolderObj.GetMainURL( INetURLObject::DecodeMechanism::NONE ), mxEnvironment, comphelper::getProcessComponentContext() );
+    Reference< XResultSet > xResultSet;
+
+    ucbhelper::ResultSetInclude eInclude = bIncludeFolders ? ucbhelper::INCLUDE_FOLDERS_AND_DOCUMENTS : ucbhelper::INCLUDE_DOCUMENTS_ONLY;
+
+    try
+    {
+        xResultSet = aCnt.createCursor( {}, eInclude );
+    }
+    catch ( css::ucb::CommandFailedException const & )
+    {
+        // Interaction Handler already handled the error that has occurred...
+    }
+
+    if ( xResultSet.is() )
+    {
+        Reference< css::ucb::XContentAccess > xContentAccess( xResultSet, UNO_QUERY );
+
+        while ( xResultSet->next() )
+        {
+            OUString aId = xContentAccess->queryContentIdentifierString();
+            INetURLObject aURL( aId, INetProtocol::File );
+            aFiles.push_back( aURL.GetMainURL( INetURLObject::DecodeMechanism::NONE ) );
+        }
+    }
+
+    return comphelper::containerToSequence(aFiles);
+}
+
+sal_Bool OFileAccess::exists( const OUString& FileURL )
+{
+    bool bRet = false;
+    try
+    {
+        bRet = isFolder( FileURL );
+        if( !bRet )
+        {
+            Reference< XInputStream > xStream = openFileRead( FileURL );
+            bRet = xStream.is();
+            if( bRet )
+                xStream->closeInput();
+        }
+    }
+    catch (const Exception &) {}
+    return bRet;
+}
+
+Reference< XInputStream > OFileAccess::openFileRead( const OUString& FileURL )
+{
+    Reference< XInputStream > xRet;
+    INetURLObject aObj( FileURL, INetProtocol::File );
+    ucbhelper::Content aCnt( aObj.GetMainURL( INetURLObject::DecodeMechanism::NONE ), mxEnvironment, comphelper::getProcessComponentContext() );
+
+    Reference<XActiveDataSink> xSink = new OActiveDataSink;
+
+    try
+    {
+        bool bRet = aCnt.openStream( xSink );
+        if( bRet )
+            xRet = xSink->getInputStream();
+    }
+    catch ( css::ucb::CommandFailedException const & )
+    {
+        // Interaction Handler already handled the error that has occurred...
+    }
+
+    return xRet;
+}
+
+Reference< XOutputStream > OFileAccess::openFileWrite( const OUString& FileURL )
+{
+    Reference< XOutputStream > xRet;
+    Reference< XStream > xStream = OFileAccess::openFileReadWrite( FileURL );
+    if( xStream.is() )
+        xRet = xStream->getOutputStream();
+    return xRet;
+}
+
+Reference< XStream > OFileAccess::openFileReadWrite( const OUString& FileURL )
+{
+    Reference<XActiveDataStreamer> xSink = new OActiveDataStreamer;
+
+    OpenCommandArgument2 aArg;
+    aArg.Mode       = OpenMode::DOCUMENT;
+    aArg.Priority   = 0; // unused
+    aArg.Sink       = xSink;
+    aArg.Properties = Sequence< Property >( 0 ); // unused
+
+    Any aCmdArg;
+    aCmdArg <<= aArg;
+
+    INetURLObject aFileObj( FileURL, INetProtocol::File );
+    ucbhelper::Content aCnt( aFileObj.GetMainURL( INetURLObject::DecodeMechanism::NONE ), mxEnvironment, comphelper::getProcessComponentContext() );
+
+    // Be silent...
+    Reference< XInteractionHandler > xIH;
+    if ( mxEnvironment.is() )
+    {
+        xIH = mxEnvironment->getInteractionHandler();
+        mxEnvironment->setHandler( nullptr );
+    }
+
+    try
+    {
+        aCnt.executeCommand( "open", aCmdArg );
+    }
+    catch ( InteractiveIOException const & e )
+    {
+        if ( xIH.is() && mxEnvironment.is() )
+            mxEnvironment->setHandler( xIH );
+
+        if ( e.Code == IOErrorCode_NOT_EXISTING )
+        {
+            // Create file...
+            SvMemoryStream aStream(0,0);
+            rtl::Reference<::utl::OInputStreamWrapper> pInput = new ::utl::OInputStreamWrapper( aStream );
+            InsertCommandArgument aInsertArg;
+            aInsertArg.Data = pInput;
+            aInsertArg.ReplaceExisting = false;
+
+            aCmdArg <<= aInsertArg;
+            aCnt.executeCommand( "insert", aCmdArg );
+
+            // Retry...
+            return openFileReadWrite( FileURL );
+        }
+
+        throw;
+    }
+
+    if ( xIH.is() && mxEnvironment.is() )
+        mxEnvironment->setHandler( xIH );
+
+    Reference< XStream > xRet = xSink->getStream();
+    return xRet;
+}
+
+void OFileAccess::setInteractionHandler( const Reference< XInteractionHandler >& Handler )
+{
+    if( !mxEnvironment.is() )
+    {
+        mxEnvironment = new OCommandEnvironment;
+    }
+    mxEnvironment->setHandler( Handler );
+}
+
+bool OFileAccess::createNewFile( const OUString & rParentURL,
+                                 const OUString & rTitle,
+                                 const Reference< XInputStream >& data )
+{
+    ucbhelper::Content aParentCnt( rParentURL, mxEnvironment, comphelper::getProcessComponentContext() );
+
+    const Sequence< ContentInfo > aInfo = aParentCnt.queryCreatableContentsInfo();
+
+    for ( const ContentInfo & rCurr : aInfo )
+    {
+        if ( ( rCurr.Attributes
+               & ContentInfoAttribute::KIND_DOCUMENT ) &&
+             ( rCurr.Attributes
+               & ContentInfoAttribute::INSERT_WITH_INPUTSTREAM ) )
+        {
+            // Make sure the only required bootstrap property is
+            // "Title",
+            const Sequence< Property > & rProps = rCurr.Properties;
+            if ( rProps.getLength() != 1 )
+                continue;
+
+            if ( rProps[ 0 ].Name != "Title" )
+                continue;
+
+            try
+            {
+                ucbhelper::Content aNew;
+                if ( aParentCnt.insertNewContent(
+                         rCurr.Type, { "Title" }, { Any(rTitle) }, data, aNew ) )
+                    return true; // success.
+                else
+                    continue;
+            }
+            catch ( CommandFailedException const & )
+            {
+                // Interaction Handler already handled the
+                // error that has occurred...
+                continue;
+            }
+        }
+    }
+
+    return false;
+}
+
+void SAL_CALL OFileAccess::writeFile( const OUString& FileURL,
+                                      const Reference< XInputStream >& data )
+{
+    INetURLObject aURL( FileURL, INetProtocol::File );
+    try
+    {
+        ucbhelper::Content aCnt(
+            aURL.GetMainURL( INetURLObject::DecodeMechanism::NONE ), mxEnvironment,
+            comphelper::getProcessComponentContext() );
+
+        try
+        {
+            aCnt.writeStream( data, true /* bReplaceExisting */ );
+        }
+        catch ( CommandFailedException const & )
+        {
+            // Interaction Handler already handled the error that has occurred...
+        }
+    }
+    catch ( ContentCreationException const & e )
+    {
+        // Most probably file does not exist. Try to create.
+        if ( e.eError == ContentCreationError_CONTENT_CREATION_FAILED )
+        {
+            INetURLObject aParentURLObj( aURL );
+            if ( aParentURLObj.removeSegment() )
+            {
+                OUString aParentURL
+                    = aParentURLObj.GetMainURL( INetURLObject::DecodeMechanism::NONE );
+
+                // ensure all parent folders exist.
+                createFolder( aParentURL );
+
+                // create the new file...
+                OUString aTitle
+                    = aURL.getName( INetURLObject::LAST_SEGMENT,
+                                    true,
+                                    INetURLObject::DecodeMechanism::WithCharset );
+                if ( createNewFile( aParentURL, aTitle, data ) )
+                {
+                    // success
+                    return;
+                }
+            }
+        }
+
+        throw;
+    }
+}
+
+sal_Bool OFileAccess::isHidden( const OUString& FileURL )
+{
+    INetURLObject aURLObj( FileURL, INetProtocol::File );
+    ucbhelper::Content aCnt( aURLObj.GetMainURL( INetURLObject::DecodeMechanism::NONE ), mxEnvironment, comphelper::getProcessComponentContext() );
+    Any aRetAny = aCnt.getPropertyValue("IsHidden");
+    bool bRet = false;
+    aRetAny >>= bRet;
+    return bRet;
+}
+
+void OFileAccess::setHidden( const OUString& FileURL, sal_Bool bHidden )
+{
+    INetURLObject aURLObj( FileURL, INetProtocol::File );
+    ucbhelper::Content aCnt( aURLObj.GetMainURL( INetURLObject::DecodeMechanism::NONE ), mxEnvironment, comphelper::getProcessComponentContext() );
+    aCnt.setPropertyValue("IsHidden", Any(bHidden) );
+}
+
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+ucb_OFileAccess_get_implementation(
+    css::uno::XComponentContext* context , css::uno::Sequence<css::uno::Any> const&)
+{
+    return cppu::acquire(new OFileAccess(context));
+}
+
+}; // namespace end
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */