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https://github.com/ONLYOFFICE/core.git
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283 lines
7.4 KiB
C++
283 lines
7.4 KiB
C++
/*
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* (c) Copyright Ascensio System SIA 2010-2019
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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. In accordance with
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* Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
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* that Ascensio System SIA expressly excludes the warranty of non-infringement
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* of any third-party rights.
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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: http://www.gnu.org/licenses/agpl-3.0.html
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*
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* You can contact Ascensio System SIA at 20A-12 Ernesta Birznieka-Upisha
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* street, Riga, Latvia, EU, LV-1050.
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*
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* The interactive user interfaces in modified source and object code versions
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* of the Program must display Appropriate Legal Notices, as required under
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* Section 5 of the GNU AGPL version 3.
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*
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* Pursuant to Section 7(b) of the License you must retain the original Product
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* logo when distributing the program. Pursuant to Section 7(e) we decline to
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* grant you any rights under trademark law for use of our trademarks.
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*
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* All the Product's GUI elements, including illustrations and icon sets, as
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* well as technical writing content are licensed under the terms of the
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* Creative Commons Attribution-ShareAlike 4.0 International. See the License
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* terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
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*
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*/
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#pragma once
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#include "PPTFileDefines.h"
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#include "../Enums/RecordType.h"
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#include "../Reader/ReadStructures.h"
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#include "../../Common/Vml/PPTShape/Enums.h"
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#include "../../XlsFile/Format/Binary/CFStream.h"
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#include "../../../Common/3dParty/pole/pole.h"
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#include "../../../OfficeCryptReader/source/CryptTransform.h"
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#include "../../../OOXML/Base/Nullable.h"
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#include "ReadStructures.h"
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#include <boost/smart_ptr/shared_array.hpp>
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#include <iostream>
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#include <iomanip>
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#include <fstream>
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std::string GetRecordName(PPT_FORMAT::RecordType dwType);
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namespace PPT_FORMAT
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{
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class SRecordHeader
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{
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public:
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unsigned char RecVersion;
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unsigned short RecInstance;
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PPT_FORMAT::RecordType RecType;
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_UINT32 RecLen;
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bool bBadHeader;
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void Clear()
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{
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RecVersion = 0;
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RecInstance = 0;
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RecType = RT_NONE;
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RecLen = 0;
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bBadHeader = false;
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}
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SRecordHeader()
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{
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Clear();
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}
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bool ReadFromStream(const XLS::CFStreamPtr &pStream)
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{
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Clear();
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if (pStream->isEOF()) return FALSE;
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POLE::uint64 nRd = 0;
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unsigned short rec = 0;
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pStream->read((unsigned char*)&(rec), 2);
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RecInstance = rec >> 4;
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RecVersion = rec - (RecInstance << 4);
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*pStream >> RecType >> RecLen;
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unsigned long sz = pStream->getStreamSize() - pStream->getStreamPointer();
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if (RecLen > sz)
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{
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RecLen = (UINT)sz;
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bBadHeader = true; // GZoabli_PhD.ppt ... RecLen & 0xffff ????
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}
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return true;
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}
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bool ReadFromStream(POLE::Stream * pStream)
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{
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Clear();
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if (!pStream) return false;
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POLE::uint64 nRd = 0;
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unsigned short rec = 0;
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nRd = pStream->read((unsigned char*)&(rec), 2);
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if (nRd != 2) return false;
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RecInstance = rec >> 4;
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RecVersion = rec - (RecInstance << 4);
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nRd = pStream->read((unsigned char*)&(RecType), 2);
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nRd = pStream->read((unsigned char*)&(RecLen), 4);
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POLE::uint64 sz = pStream->size() - pStream->tell();
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if (RecLen > sz)
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{
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RecLen = (UINT)sz;
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bBadHeader = true; // GZoabli_PhD.ppt ... RecLen & 0xffff ????
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}
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// void** backTraceData = (void**)(new char*[40]);
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// int backTraceSize = backtrace(backTraceData, 40);
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// std::ofstream file("/home/ivaz28/pp/dia/ppt/pptRecords.txt", std::ios::out | std::ios::app);
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// file << std::string(backTraceSize - 11, ' ')
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// << "0x" << std::setw(4) << std::setfill('0') << std::hex << (int)RecType
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// << " " << std::setw(40) << std::setfill(' ') << std::left << GetRecordName(RecType)
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// << " " << std::setw(5) << std::dec << RecLen
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// << " " << backTraceSize << std::endl;
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// delete [] backTraceData;
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// file.close();
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return true;
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}
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bool IsContainer()
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{
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/*if ((RecVersion == PSFLAG_CONTAINER) || ((RecVersion & 0x0F) == 0x0F))
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{
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return TRUE;
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}*/
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if (1064 == RecType)
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return false;
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if (RecVersion == 0x0F)
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{
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return true;
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}
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return false;
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}
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SRecordHeader& operator =(const SRecordHeader& oSrc)
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{
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RecVersion = oSrc.RecVersion;
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RecInstance = oSrc.RecInstance;
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RecType = oSrc.RecType;
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RecLen = oSrc.RecLen;
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return (*this);
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}
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};
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class IRecord
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{
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public:
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SRecordHeader m_oHeader;
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virtual ~IRecord() {}
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virtual void ReadFromStream(SRecordHeader & oHeader, const XLS::CFStreamPtr &pStream) = 0;
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virtual void ReadFromStream(SRecordHeader & oHeader, POLE::Stream* pStream) = 0;
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};
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class CUnknownRecord : public IRecord
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{
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// этот класс - просто для того, чтобы нигде не проверять,
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// реализована ли у нас такая запись
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public:
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CUnknownRecord()
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{
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}
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~CUnknownRecord()
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{
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}
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virtual void ReadFromStream(SRecordHeader & oHeader, const XLS::CFStreamPtr &pStream)
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{
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m_oHeader = oHeader;
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pStream->seekFromCurForward(m_oHeader.RecLen);
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}
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virtual void ReadFromStream(SRecordHeader & oHeader, POLE::Stream* pStream)
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{
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m_oHeader = oHeader;
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StreamUtils::StreamSkip((long)m_oHeader.RecLen, pStream);
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}
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std::wstring ReadStringW(const XLS::CFStreamPtr &pStream, int size);
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std::string ReadStringA(const XLS::CFStreamPtr &pStream, int size);
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};
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IRecord* CreateByType(SRecordHeader oHeader);
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class CRecordsContainer : public CUnknownRecord
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{
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public:
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std::vector<IRecord*> m_arRecords;
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CRecordsContainer() : m_arRecords()
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{
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}
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virtual ~CRecordsContainer()
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{
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Clear();
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}
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void Clear()
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{
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size_t nCount = m_arRecords.size();
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while (0 != nCount)
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{
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if (NULL != m_arRecords[nCount - 1])
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{
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delete m_arRecords[nCount - 1];
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m_arRecords[nCount - 1] = NULL;
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}
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m_arRecords.pop_back();
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--nCount;
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}
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}
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virtual void ReadFromStream(SRecordHeader & oHeader, const XLS::CFStreamPtr &pStream);
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virtual void ReadFromStream(SRecordHeader & oHeader, POLE::Stream* pStream);
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template <typename T>
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void GetRecordsByType(std::vector<T>* pArray, bool bIsChild, bool bOnlyFirst = false) const
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{
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if (NULL == pArray)
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return;
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// возвращаем указатели, их не удалять наверху!!!!
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for (size_t nIndex = 0; nIndex < m_arRecords.size(); ++nIndex)
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{
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T pRec = dynamic_cast<T>(m_arRecords[nIndex]);
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if (NULL != pRec)
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{
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pArray->push_back(pRec);
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if (bOnlyFirst)
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{
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return;
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}
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}
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else if ((bIsChild) && (m_arRecords[nIndex]->m_oHeader.IsContainer()))
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{
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CRecordsContainer* pContainer = dynamic_cast<CRecordsContainer*>(m_arRecords[nIndex]);
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if (NULL != pContainer)
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{
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pContainer->GetRecordsByType(pArray, bIsChild, bOnlyFirst);
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}
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}
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}
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}
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};
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}
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//-------------------------------------------------------------------------------
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#define CREATE_BY_TYPE(RECORD_TYPE, CLASS_RECORD_NAME) \
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case RECORD_TYPE: { pRecord = new CLASS_RECORD_NAME(); break; } \
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//-------------------------------------------------------------------------------
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