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/* -*- 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 <sal/config.h>
#include <o3tl/safeint.hxx>
#include <tools/stream.hxx>
#include <sfx2/mieclip.hxx>
MSE40HTMLClipFormatObj::~MSE40HTMLClipFormatObj()
{
}
SvStream* MSE40HTMLClipFormatObj::IsValid( SvStream& rStream )
{
bool bRet = false;
pStrm.reset();
OString sLine;
sal_Int32 nStt = -1, nEnd = -1, nFragStart = -1, nFragEnd = -1;
sal_Int32 nIndex = 0;
rStream.Seek(STREAM_SEEK_TO_BEGIN);
rStream.ResetError();
if( rStream.ReadLine( sLine ) &&
sLine.getToken( 0, ':', nIndex ) == "Version" )
{
while( rStream.ReadLine( sLine ) )
{
nIndex = 0;
OString sTmp(sLine.getToken(0, ':', nIndex));
if (sTmp == "StartHTML")
nStt = sLine.copy(nIndex).toInt32();
else if (sTmp == "EndHTML")
nEnd = sLine.copy(nIndex).toInt32();
else if (sTmp == "StartFragment")
nFragStart = sLine.copy(nIndex).toInt32();
else if (sTmp == "EndFragment")
nFragEnd = sLine.copy(nIndex).toInt32();
else if (sTmp == "SourceURL")
sBaseURL = OStringToOUString( sLine.copy(nIndex), RTL_TEXTENCODING_UTF8 );
if (nEnd >= 0 && nStt >= 0 &&
(!sBaseURL.isEmpty() || rStream.Tell() >= o3tl::make_unsigned(nStt)))
{
bRet = true;
break;
}
}
}
if( bRet )
{
rStream.Seek( nStt );
pStrm.reset( new SvMemoryStream( ( nEnd - nStt < 0x10000l
? nEnd - nStt + 32
: 0 )) );
pStrm->WriteStream( rStream );
pStrm->SetStreamSize( nEnd - nStt + 1 );
pStrm->Seek( STREAM_SEEK_TO_BEGIN );
return pStrm.get();
}
if (nFragStart > 0 && nFragEnd > 0 && nFragEnd > nFragStart)
{
size_t nSize = nFragEnd - nFragStart + 1;
if (nSize < 0x10000L)
{
rStream.Seek(nFragStart);
pStrm.reset( new SvMemoryStream(nSize) );
pStrm->WriteStream( rStream );
pStrm->SetStreamSize(nSize);
pStrm->Seek(STREAM_SEEK_TO_BEGIN);
return pStrm.get();
}
}
return nullptr;
}
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