mirror of
https://github.com/ONLYOFFICE/core.git
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256 lines
7.7 KiB
C++
256 lines
7.7 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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#ifndef MEMORYSTREAM
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#define MEMORYSTREAM
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#include <string>
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#include "../common/Types.h"
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#include "../common/File.h"
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#include "v8.h"
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#include "libplatform/libplatform.h"
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#if V8_MAJOR_VERSION < 7
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#define ISOLATE_IF_7
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#else
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#define ISOLATE_IF_7 v8::Isolate::GetCurrent(),
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#endif
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class CV8Convert
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{
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public:
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static int ToInt(const v8::Local<v8::Value>& v)
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{
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return v->ToInt32(v8::Isolate::GetCurrent()->GetCurrentContext()).FromMaybe(v8::Local<v8::Int32>())->Value();
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}
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static unsigned int ToUint(const v8::Local<v8::Value>& v)
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{
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return v->ToUint32(v8::Isolate::GetCurrent()->GetCurrentContext()).FromMaybe(v8::Local<v8::Uint32>())->Value();
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}
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static double ToDouble(const v8::Local<v8::Value>& v)
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{
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return v->ToNumber(v8::Isolate::GetCurrent()->GetCurrentContext()).FromMaybe(v8::Local<v8::Number>())->Value();
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}
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static bool ToBool(const v8::Local<v8::Value>& v)
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{
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return v->ToBoolean(v8::Isolate::GetCurrent()->GetCurrentContext()).FromMaybe(v8::Local<v8::Boolean>())->Value();
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}
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static std::wstring ToString(v8::Local<v8::Value> v)
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{
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v8::String::Utf8Value data(ISOLATE_IF_7 v);
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if (NULL == *data)
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return L"";
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return NSFile::CUtf8Converter::GetUnicodeStringFromUTF8((BYTE*)(*data), data.length());
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}
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static std::string ToStringA(v8::Local<v8::Value> v)
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{
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v8::String::Utf8Value data(ISOLATE_IF_7 v);
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const char* p = (char*)*data;
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if (NULL == p)
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return "";
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return std::string(p);
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}
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static std::wstring GetSourceLine(const v8::Local<v8::Message>& m)
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{
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return ToString(m->GetSourceLine(v8::Isolate::GetCurrent()->GetCurrentContext()).FromMaybe(v8::Local<v8::String>()));
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}
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static std::wstring GetMessage(const v8::Local<v8::Message>& m)
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{
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return ToString(m->Get());
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}
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};
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class CMemoryStream
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{
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private:
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// сам метафайл
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BYTE* m_pBuffer;
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BYTE* m_pBufferMem;
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size_t m_lSize;
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public:
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CMemoryStream()
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{
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m_pBuffer = NULL;
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m_pBufferMem = NULL;
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m_lSize = 0;
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}
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~CMemoryStream()
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{
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RELEASEARRAYOBJECTS(m_pBuffer);
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}
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inline BYTE* GetData()
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{
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return m_pBuffer;
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}
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inline int GetSize()
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{
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return (int)(m_pBufferMem - m_pBuffer);
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}
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inline void Clear()
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{
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m_lSize = 0;
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m_pBuffer = NULL;
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m_pBufferMem = NULL;
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}
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inline void ClearNoAttack()
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{
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m_pBufferMem = m_pBuffer;
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}
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inline void Copy(const CMemoryStream* pData, const size_t& nPos, const size_t& nLen)
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{
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CheckBufferSize(nLen);
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memcpy(m_pBufferMem, pData->m_pBuffer + nPos, nLen);
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m_pBufferMem += nLen;
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}
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inline void CheckBufferSize(size_t lPlus)
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{
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if (NULL != m_pBuffer)
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{
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size_t nNewSize = (m_pBufferMem - m_pBuffer) + lPlus;
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if (nNewSize >= m_lSize)
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{
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while (nNewSize >= m_lSize)
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{
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m_lSize *= 2;
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}
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BYTE* pNew = new BYTE[m_lSize];
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memcpy(pNew, m_pBuffer, m_pBufferMem - m_pBuffer);
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m_pBufferMem = pNew + (m_pBufferMem - m_pBuffer);
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RELEASEARRAYOBJECTS(m_pBuffer);
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m_pBuffer = pNew;
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}
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}
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else
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{
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m_lSize = 1000;
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m_pBuffer = new BYTE[m_lSize];
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m_pBufferMem = m_pBuffer;
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CheckBufferSize(lPlus);
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}
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}
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inline void WriteBYTE(const BYTE& lValue)
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{
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CheckBufferSize(sizeof(BYTE));
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*m_pBufferMem = lValue;
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m_pBufferMem += sizeof(BYTE);
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}
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inline void WriteLONG(const LONG& lValue)
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{
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CheckBufferSize(sizeof(LONG));
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*((LONG*)(m_pBufferMem)) = lValue;
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m_pBufferMem += sizeof(LONG);
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}
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inline void WriteDouble(const double& dValue)
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{
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CheckBufferSize(sizeof(double));
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*((double*)(m_pBufferMem)) = dValue;
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m_pBufferMem += sizeof(double);
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}
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inline void WriteStringA(const char* pData, int nLen)
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{
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CheckBufferSize(nLen + sizeof(USHORT));
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*((USHORT*)(m_pBufferMem)) = (USHORT)nLen;
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m_pBufferMem += sizeof(USHORT);
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memcpy(m_pBufferMem, pData, nLen);
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m_pBufferMem += nLen;
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}
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inline void WriteStringA2(const char* pData, int nLen)
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{
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CheckBufferSize(nLen + sizeof(LONG));
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*((LONG*)(m_pBufferMem)) = (LONG)nLen;
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m_pBufferMem += sizeof(LONG);
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memcpy(m_pBufferMem, pData, nLen);
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m_pBufferMem += nLen;
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}
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inline void WriteString(const wchar_t* pData, int nLen)
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{
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CheckBufferSize(nLen + sizeof(USHORT));
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*((USHORT*)(m_pBufferMem)) = (USHORT)nLen;
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m_pBufferMem += sizeof(USHORT);
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int nLen2 = nLen << 1;
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memcpy(m_pBufferMem, pData, nLen2);
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m_pBufferMem += nLen2;
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}
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inline void WriteString2(const wchar_t* pData, int nLen)
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{
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int nLen2 = nLen << 1;
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CheckBufferSize(nLen2 + sizeof(LONG));
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*((LONG*)(m_pBufferMem)) = (LONG)nLen2;
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m_pBufferMem += sizeof(LONG);
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memcpy(m_pBufferMem, pData, nLen2);
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m_pBufferMem += nLen2;
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}
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};
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// wrap_methods -------------
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CMemoryStream* unwrap_memorystream(v8::Handle<v8::Object> obj);
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void _ms_write_byte(const v8::FunctionCallbackInfo<v8::Value>& args);
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void _ms_write_bool(const v8::FunctionCallbackInfo<v8::Value>& args);
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void _ms_write_long(const v8::FunctionCallbackInfo<v8::Value>& args);
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void _ms_write_double(const v8::FunctionCallbackInfo<v8::Value>& args);
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void _ms_writestring1(const v8::FunctionCallbackInfo<v8::Value>& args);
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void _ms_writestring2(const v8::FunctionCallbackInfo<v8::Value>& args);
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void _ms_copy(const v8::FunctionCallbackInfo<v8::Value>& args);
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void _ms_clearnoattack(const v8::FunctionCallbackInfo<v8::Value>& args);
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void _ms_pos(v8::Local<v8::String> name, const v8::PropertyCallbackInfo<v8::Value>& info);
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v8::Handle<v8::ObjectTemplate> CreateMemoryStreamTemplate(v8::Isolate* isolate);
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#endif // MEMORYSTREAM
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