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76ee07f61c
Co-authored-by: Alexander Trofimov <alexander.trofimov@onlyoffice.com> Co-committed-by: Alexander Trofimov <alexander.trofimov@onlyoffice.com>
111 lines
3.5 KiB
C++
111 lines
3.5 KiB
C++
/*
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* Copyright (C) Ascensio System SIA, 2009-2026
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*
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* This program is a free software product. You can redistribute it and/or
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* modify it under the terms of the GNU Affero General Public License (AGPL)
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* version 3 as published by the Free Software Foundation, together with the
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* additional terms provided in the LICENSE file.
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*
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* This program is distributed WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For
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* details, see the GNU AGPL at: https://www.gnu.org/licenses/agpl-3.0.html
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*
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* You can contact Ascensio System SIA by email at info@onlyoffice.com
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* or by postal mail at 20A-6 Ernesta Birznieka-Upisha Street, Riga,
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* LV-1050, Latvia, European Union.
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*
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* The interactive user interfaces in modified versions of the Program
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* are required to display Appropriate Legal Notices in accordance with
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* Section 5 of the GNU AGPL version 3.
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*
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* No trademark rights are granted under this License.
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*
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* All non-code elements of the Product, including illustrations,
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* icon sets, and technical writing content, are licensed under the
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* Creative Commons Attribution-ShareAlike 4.0 International License:
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* https://creativecommons.org/licenses/by-sa/4.0/legalcode
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*
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* This license applies only to such non-code elements and does not
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* modify or replace the licensing terms applicable to the Program's
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* source code, which remains licensed under the GNU Affero General
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* Public License v3.
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*
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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#include "ExOleObjAtom.h"
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using namespace PPT;
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void CRecordExOleObjAtom::ReadFromStream(SRecordHeader &oHeader, POLE::Stream *pStream)
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{
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m_oHeader = oHeader;
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m_nDrawAspect = StreamUtils::ReadDWORD(pStream);
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m_nType = StreamUtils::ReadDWORD(pStream);
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m_nExObjID = StreamUtils::ReadDWORD(pStream);
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m_nSubType = StreamUtils::ReadDWORD(pStream);
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m_nPersistID = StreamUtils::ReadDWORD(pStream);
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StreamUtils::StreamSkip ( 4, pStream ); //unused
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}
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CRecordExOleObjStg::CRecordExOleObjStg(std::wstring strTemp) : m_strTmpDirectory(strTemp)
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{
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}
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CRecordExOleObjStg::~CRecordExOleObjStg()
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{
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}
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void CRecordExOleObjStg::ReadFromStream(SRecordHeader &oHeader, POLE::Stream *pStream)
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{
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m_oHeader = oHeader;
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ULONG decompressedSize = m_oHeader.RecLen, compressedSize = m_oHeader.RecLen;
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if (m_oHeader.RecInstance == 0x01)
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{
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compressedSize = m_oHeader.RecLen - 4;
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decompressedSize = StreamUtils::ReadDWORD(pStream);
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}
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BYTE* pData = (compressedSize > 0 && compressedSize < 0xffffff ) ? new BYTE[compressedSize] : NULL;
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if (!pData) return;
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compressedSize = pStream->read(pData, compressedSize);
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if (m_oHeader.RecInstance == 0x01)
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{
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BYTE* pDataUncompress = (compressedSize > 0 && compressedSize < 0xffffff) ? new BYTE[decompressedSize + 64] : NULL;
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if ((pDataUncompress) && (NSZip::Decompress(pData, compressedSize, pDataUncompress, decompressedSize)))
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{
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delete []pData;
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pData = pDataUncompress;
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}
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else
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{
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delete []pData;
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pData = NULL;
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}
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}
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//if (pDecryptor)
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//{
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// pDecryptor->Decrypt((char*)pData, oHeader.RecLen - lOffset, 0);
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//}
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if (pData)
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{
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m_sFileName = m_strTmpDirectory + FILE_SEPARATOR_STR + L"oleObject_xxx.bin";
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NSFile::CFileBinary file;
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if (file.CreateFileW(m_sFileName))
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{
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file.WriteFile(pData, decompressedSize);
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file.CloseFile();
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}
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delete[] pData;
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pData = NULL;
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}
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}
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