// Copyright 2014 PDFium Authors. All rights reserved. | |
// Use of this source code is governed by a BSD-style license that can be | |
// found in the LICENSE file. | |
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | |
#ifndef _FXFA_FORMFILLER_CHECKSUM_IMP_H | |
#define _FXFA_FORMFILLER_CHECKSUM_IMP_H | |
class CXFA_SAXReaderHandler; | |
class CXFA_ChecksumContext; | |
class CXFA_SAXContext { | |
public: | |
CXFA_SAXContext() : m_eNode(FX_SAXNODE_Unknown) {} | |
CFX_ByteTextBuf m_TextBuf; | |
CFX_ByteString m_bsTagName; | |
FX_SAXNODE m_eNode; | |
}; | |
class CXFA_SAXReaderHandler : public IFX_SAXReaderHandler { | |
public: | |
CXFA_SAXReaderHandler(CXFA_ChecksumContext* pContext); | |
virtual ~CXFA_SAXReaderHandler(); | |
virtual void* OnTagEnter(const CFX_ByteStringC& bsTagName, | |
FX_SAXNODE eType, | |
FX_DWORD dwStartPos); | |
virtual void OnTagAttribute(void* pTag, | |
const CFX_ByteStringC& bsAttri, | |
const CFX_ByteStringC& bsValue); | |
virtual void OnTagBreak(void* pTag); | |
virtual void OnTagData(void* pTag, | |
FX_SAXNODE eType, | |
const CFX_ByteStringC& bsData, | |
FX_DWORD dwStartPos); | |
virtual void OnTagClose(void* pTag, FX_DWORD dwEndPos); | |
virtual void OnTagEnd(void* pTag, | |
const CFX_ByteStringC& bsTagName, | |
FX_DWORD dwEndPos); | |
virtual void OnTargetData(void* pTag, | |
FX_SAXNODE eType, | |
const CFX_ByteStringC& bsData, | |
FX_DWORD dwStartPos); | |
protected: | |
void UpdateChecksum(FX_BOOL bCheckSpace); | |
CXFA_ChecksumContext* m_pContext; | |
CXFA_SAXContext m_SAXContext; | |
}; | |
class CXFA_ChecksumContext : public IXFA_ChecksumContext { | |
public: | |
CXFA_ChecksumContext(); | |
virtual ~CXFA_ChecksumContext(); | |
virtual void Release() { delete this; } | |
virtual FX_BOOL StartChecksum(); | |
virtual FX_BOOL UpdateChecksum(IFX_FileRead* pSrcFile, | |
FX_FILESIZE offset = 0, | |
size_t size = 0); | |
virtual void FinishChecksum(); | |
virtual void GetChecksum(CFX_ByteString& bsChecksum); | |
void Update(const CFX_ByteStringC& bsText); | |
protected: | |
IFX_SAXReader* m_pSAXReader; | |
uint8_t* m_pByteContext; | |
CFX_ByteString m_bsChecksum; | |
}; | |
#endif |