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178 lines
4.3 KiB
C++
178 lines
4.3 KiB
C++
/*
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* (c) Copyright Ascensio System SIA 2010-2017
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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 Lubanas st. 125a-25, Riga, Latvia,
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* EU, LV-1021.
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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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#include "CompoundFile.h"
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#include "CFStream.h"
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#include <sstream>
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namespace XLS
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{
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CompoundFile::~CompoundFile()
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{
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streams.clear();
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if (storage_)delete storage_;
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storage_ = NULL;
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}
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bool CompoundFile::isError()
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{
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if (storage_ != NULL) return false;
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return true;
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}
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bool CompoundFile::Open(const std::wstring & file_path, const ReadWriteMode mode)
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{
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if (storage_) delete storage_;
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storage_ = NULL;
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rwMode = mode;
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unsigned int grfMode = 0;
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storage_ = new POLE::Storage(file_path.c_str());
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if (storage_ == NULL) return false;
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switch(rwMode)
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{
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case cf_ReadMode:
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{
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if (storage_->open(false, false) == false)
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{
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delete storage_;
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storage_ = NULL;
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}
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}break;
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case cf_WriteMode:
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{
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if (storage_->open(true, true) == false)
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{
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delete storage_;
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storage_ = NULL;
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}
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}break;
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}
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if (storage_ == NULL) return false;
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return true;
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}
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CompoundFile::CompoundFile(const std::wstring & file_path, const ReadWriteMode mode)
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{
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storage_ = NULL;
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Open(file_path, mode);
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}
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// Opens "Workbook" stream and returns the only reference
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CFStreamPtr CompoundFile::getWorkbookStream()
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{
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CFStreamPtr stream = getNamedStream("Workbook");
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if (stream == NULL)
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stream = getNamedStream("WORKBOOK"); //6447323.xls
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if (stream == NULL)
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stream = getNamedStream("Book");
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if (stream == NULL)
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stream = getNamedStream("BOOK");//file(6).xls
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if (stream == NULL)
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stream = getNamedStream("book");
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return stream;
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}
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CFStreamPtr CompoundFile::getNamedStream(const std::string& name)
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{
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if(!streams[name])
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{
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POLE::Stream * pStream = openStream(name.c_str());
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if (pStream)
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streams[name].reset(new CFStream(pStream));
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}
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return streams[name];
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}
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CFStreamPtr CompoundFile::createNamedStream(const std::string& name)
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{
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if(!streams[name])
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{
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POLE::Stream * pStream = createStream(name.c_str());
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if (pStream)
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streams[name].reset(new CFStream(pStream));
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}
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return streams[name];
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}
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void CompoundFile::closeNamedStream(const std::string& name)
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{
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streams[name].reset();
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}
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// Opens a stream in the storage (shall be called not more than once per stream)
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POLE::Stream* CompoundFile::openStream(const std::string & stream_name)
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{
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if (storage_ == NULL) return NULL;
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POLE::Stream* pStream = new POLE::Stream(storage_, stream_name);
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if(pStream == NULL)
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{
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return NULL;
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}
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if ((pStream) && (pStream->size() > 0))
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return pStream;
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else return NULL;
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}
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// Creates a new stream in the storage
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POLE::Stream* CompoundFile::createStream(const std::string & stream_name)
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{
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if (storage_ == NULL) return NULL;
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POLE::Stream* pStream = new POLE::Stream(storage_, stream_name, true);
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if(pStream == NULL)
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{
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return NULL;
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}
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return pStream;
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}
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} // namespace XLS
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