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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 05:54:39 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-15 05:54:39 +0000
commit267c6f2ac71f92999e969232431ba04678e7437e (patch)
tree358c9467650e1d0a1d7227a21dac2e3d08b622b2 /sot/source/sdstor/stgole.cxx
parentInitial commit. (diff)
downloadlibreoffice-267c6f2ac71f92999e969232431ba04678e7437e.tar.xz
libreoffice-267c6f2ac71f92999e969232431ba04678e7437e.zip
Adding upstream version 4:24.2.0.upstream/4%24.2.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sot/source/sdstor/stgole.cxx')
-rw-r--r--sot/source/sdstor/stgole.cxx180
1 files changed, 180 insertions, 0 deletions
diff --git a/sot/source/sdstor/stgole.cxx b/sot/source/sdstor/stgole.cxx
new file mode 100644
index 0000000000..ac23f7a145
--- /dev/null
+++ b/sot/source/sdstor/stgole.cxx
@@ -0,0 +1,180 @@
+/* -*- 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 <memory>
+#include <algorithm>
+
+#include "stgelem.hxx"
+#include "stgole.hxx"
+#include <o3tl/safeint.hxx>
+#include <sot/storinfo.hxx>
+
+///////////////////////// class StgInternalStream
+
+StgInternalStream::StgInternalStream( BaseStorage& rStg, const OUString& rName, bool bWr )
+{
+ m_isWritable = true;
+ StreamMode nMode = bWr
+ ? StreamMode::WRITE | StreamMode::SHARE_DENYALL
+ : StreamMode::READ | StreamMode::SHARE_DENYWRITE | StreamMode::NOCREATE;
+ m_pStrm.reset( rStg.OpenStream( rName, nMode ) );
+
+ // set the error code right here in the stream
+ SetError( rStg.GetError() );
+ SetBufferSize( 1024 );
+}
+
+StgInternalStream::~StgInternalStream()
+{
+}
+
+std::size_t StgInternalStream::GetData(void* pData, std::size_t nSize)
+{
+ if( m_pStrm )
+ {
+ nSize = m_pStrm->Read( pData, nSize );
+ SetError( m_pStrm->GetError() );
+ return nSize;
+ }
+ else
+ return 0;
+}
+
+std::size_t StgInternalStream::PutData(const void* pData, std::size_t nSize)
+{
+ if( m_pStrm )
+ {
+ nSize = m_pStrm->Write( pData, nSize );
+ SetError( m_pStrm->GetError() );
+ return nSize;
+ }
+ else
+ return 0;
+}
+
+sal_uInt64 StgInternalStream::SeekPos(sal_uInt64 const nPos)
+{
+ return m_pStrm ? m_pStrm->Seek( nPos ) : 0;
+}
+
+void StgInternalStream::FlushData()
+{
+ if( m_pStrm )
+ {
+ m_pStrm->Flush();
+ SetError( m_pStrm->GetError() );
+ }
+}
+
+void StgInternalStream::Commit()
+{
+ Flush();
+ m_pStrm->Commit();
+}
+
+///////////////////////// class StgCompObjStream
+
+StgCompObjStream::StgCompObjStream( BaseStorage& rStg, bool bWr )
+ : StgInternalStream( rStg, "\1CompObj", bWr )
+{
+}
+
+bool StgCompObjStream::Load()
+{
+ memset( &m_aClsId, 0, sizeof( ClsId ) );
+ m_nCbFormat = SotClipboardFormatId::NONE;
+ m_aUserName.clear();
+ if( GetError() != ERRCODE_NONE )
+ return false;
+ Seek( 8 ); // skip the first part
+ sal_Int32 nMarker = 0;
+ ReadInt32( nMarker );
+ if( nMarker == -1 )
+ {
+ ReadClsId( *this, m_aClsId );
+ sal_Int32 nLen1 = 0;
+ ReadInt32( nLen1 );
+ if ( nLen1 > 0 )
+ {
+ // higher bits are ignored
+ sal_Int32 nStrLen = ::std::min( nLen1, sal_Int32(0xFFFE) );
+
+ std::unique_ptr<char[]> p(new char[ nStrLen+1 ]);
+ p[nStrLen] = 0;
+ if (ReadBytes( p.get(), nStrLen ) == o3tl::make_unsigned(nStrLen))
+ {
+ //The encoding here is "ANSI", which is pretty useless seeing as
+ //the actual codepage used doesn't seem to be specified/stored
+ //anywhere :-(. Might as well pick 1252 and be consistent on
+ //all platforms and envs
+ //https://bz.apache.org/ooo/attachment.cgi?id=68668
+ //for a good edge-case example
+ m_aUserName = OUString(p.get(), nStrLen, RTL_TEXTENCODING_MS_1252);
+ m_nCbFormat = ReadClipboardFormat( *this );
+ }
+ else
+ SetError( SVSTREAM_GENERALERROR );
+ }
+ }
+ return GetError() == ERRCODE_NONE;
+}
+
+bool StgCompObjStream::Store()
+{
+ if( GetError() != ERRCODE_NONE )
+ return false;
+ Seek( 0 );
+ OString aAsciiUserName(OUStringToOString(m_aUserName, RTL_TEXTENCODING_MS_1252));
+ WriteInt16( 1 ); // Version?
+ WriteInt16( -2 ); // 0xFFFE = Byte Order Indicator
+ WriteInt32( 0x0A03 ); // Windows 3.10
+ WriteInt32( -1 );
+ WriteClsId( *this, m_aClsId ); // Class ID
+ WriteInt32( aAsciiUserName.getLength() + 1 );
+ WriteOString( aAsciiUserName );
+ WriteUChar( 0 ); // string terminator
+ WriteClipboardFormat( *this, m_nCbFormat );
+ WriteInt32( 0 ); // terminator
+ Commit();
+ return GetError() == ERRCODE_NONE;
+}
+
+/////////////////////////// class StgOleStream
+
+StgOleStream::StgOleStream( BaseStorage& rStg )
+ : StgInternalStream( rStg, "\1Ole", true )
+{
+}
+
+bool StgOleStream::Store()
+{
+ if( GetError() != ERRCODE_NONE )
+ return false;
+
+ Seek( 0 );
+ WriteInt32( 0x02000001 ); // OLE version, format
+ WriteInt32( 0 ); // Object flags
+ WriteInt32( 0 ); // Update Options
+ WriteInt32( 0 ); // reserved
+ WriteInt32( 0 ); // Moniker 1
+ Commit();
+ return GetError() == ERRCODE_NONE;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */