diff options
Diffstat (limited to 'xfa/src/fxfa/app/xfa_checksum.cpp')
| -rw-r--r-- | xfa/src/fxfa/app/xfa_checksum.cpp | 190 |
1 files changed, 0 insertions, 190 deletions
diff --git a/xfa/src/fxfa/app/xfa_checksum.cpp b/xfa/src/fxfa/app/xfa_checksum.cpp deleted file mode 100644 index 3df37cf156..0000000000 --- a/xfa/src/fxfa/app/xfa_checksum.cpp +++ /dev/null @@ -1,190 +0,0 @@ -// 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 - -#include "xfa/src/fxfa/app/xfa_checksum.h" - -#include "core/include/fdrm/fx_crypt.h" -#include "xfa/src/fgas/crt/fgas_algorithm.h" - -CXFA_SAXReaderHandler::CXFA_SAXReaderHandler(CXFA_ChecksumContext* pContext) - : m_pContext(pContext) { - FXSYS_assert(m_pContext); -} -CXFA_SAXReaderHandler::~CXFA_SAXReaderHandler() {} -void* CXFA_SAXReaderHandler::OnTagEnter(const CFX_ByteStringC& bsTagName, - FX_SAXNODE eType, - FX_DWORD dwStartPos) { - UpdateChecksum(TRUE); - if (eType != FX_SAXNODE_Tag && eType != FX_SAXNODE_Instruction) { - return NULL; - } - m_SAXContext.m_eNode = eType; - CFX_ByteTextBuf& textBuf = m_SAXContext.m_TextBuf; - textBuf << "<"; - if (eType == FX_SAXNODE_Instruction) { - textBuf << "?"; - } - textBuf << bsTagName; - m_SAXContext.m_bsTagName = bsTagName; - return &m_SAXContext; -} -void CXFA_SAXReaderHandler::OnTagAttribute(void* pTag, - const CFX_ByteStringC& bsAttri, - const CFX_ByteStringC& bsValue) { - if (pTag == NULL) { - return; - } - CFX_ByteTextBuf& textBuf = ((CXFA_SAXContext*)pTag)->m_TextBuf; - textBuf << " " << bsAttri << "=\"" << bsValue << "\""; -} -void CXFA_SAXReaderHandler::OnTagBreak(void* pTag) { - if (pTag == NULL) { - return; - } - CFX_ByteTextBuf& textBuf = ((CXFA_SAXContext*)pTag)->m_TextBuf; - textBuf << ">"; - UpdateChecksum(FALSE); -} -void CXFA_SAXReaderHandler::OnTagData(void* pTag, - FX_SAXNODE eType, - const CFX_ByteStringC& bsData, - FX_DWORD dwStartPos) { - if (pTag == NULL) { - return; - } - CFX_ByteTextBuf& textBuf = ((CXFA_SAXContext*)pTag)->m_TextBuf; - if (eType == FX_SAXNODE_CharData) { - textBuf << "<![CDATA["; - } - textBuf << bsData; - if (eType == FX_SAXNODE_CharData) { - textBuf << "]]>"; - } -} -void CXFA_SAXReaderHandler::OnTagClose(void* pTag, FX_DWORD dwEndPos) { - if (pTag == NULL) { - return; - } - CXFA_SAXContext* pSAXContext = (CXFA_SAXContext*)pTag; - CFX_ByteTextBuf& textBuf = pSAXContext->m_TextBuf; - if (pSAXContext->m_eNode == FX_SAXNODE_Instruction) { - textBuf << "?>"; - } else if (pSAXContext->m_eNode == FX_SAXNODE_Tag) { - textBuf << "></" << pSAXContext->m_bsTagName << ">"; - } - UpdateChecksum(FALSE); -} -void CXFA_SAXReaderHandler::OnTagEnd(void* pTag, - const CFX_ByteStringC& bsTagName, - FX_DWORD dwEndPos) { - if (pTag == NULL) { - return; - } - CFX_ByteTextBuf& textBuf = ((CXFA_SAXContext*)pTag)->m_TextBuf; - textBuf << "</" << bsTagName << ">"; - UpdateChecksum(FALSE); -} -void CXFA_SAXReaderHandler::OnTargetData(void* pTag, - FX_SAXNODE eType, - const CFX_ByteStringC& bsData, - FX_DWORD dwStartPos) { - if (pTag == NULL && eType != FX_SAXNODE_Comment) { - return; - } - if (eType == FX_SAXNODE_Comment) { - CFX_ByteTextBuf& textBuf = m_SAXContext.m_TextBuf; - textBuf << "<!--" << bsData << "-->"; - UpdateChecksum(FALSE); - } else { - CFX_ByteTextBuf& textBuf = ((CXFA_SAXContext*)pTag)->m_TextBuf; - textBuf << " " << bsData; - } -} -void CXFA_SAXReaderHandler::UpdateChecksum(FX_BOOL bCheckSpace) { - int32_t iLength = m_SAXContext.m_TextBuf.GetLength(); - if (iLength < 1) { - return; - } - uint8_t* pBuffer = m_SAXContext.m_TextBuf.GetBuffer(); - FX_BOOL bUpdata = TRUE; - if (bCheckSpace) { - bUpdata = FALSE; - for (int32_t i = 0; i < iLength; i++) { - bUpdata = (pBuffer[i] > 0x20); - if (bUpdata) { - break; - } - } - } - if (bUpdata) { - m_pContext->Update(CFX_ByteStringC(pBuffer, iLength)); - } - m_SAXContext.m_TextBuf.Clear(); -} -IXFA_ChecksumContext* XFA_Checksum_Create() { - return new CXFA_ChecksumContext; -} -CXFA_ChecksumContext::CXFA_ChecksumContext() - : m_pSAXReader(NULL), m_pByteContext(NULL) {} -CXFA_ChecksumContext::~CXFA_ChecksumContext() { - FinishChecksum(); -} -FX_BOOL CXFA_ChecksumContext::StartChecksum() { - FinishChecksum(); - m_pByteContext = FX_Alloc(uint8_t, 128); - CRYPT_SHA1Start(m_pByteContext); - m_bsChecksum.Empty(); - m_pSAXReader = FX_SAXReader_Create(); - return m_pSAXReader != NULL; -} -FX_BOOL CXFA_ChecksumContext::UpdateChecksum(IFX_FileRead* pSrcFile, - FX_FILESIZE offset, - size_t size) { - if (m_pSAXReader == NULL) { - return FALSE; - } - if (pSrcFile == NULL) { - return FALSE; - } - if (size < 1) { - size = pSrcFile->GetSize(); - } - CXFA_SAXReaderHandler handler(this); - m_pSAXReader->SetHandler(&handler); - if (m_pSAXReader->StartParse( - pSrcFile, (FX_DWORD)offset, (FX_DWORD)size, - FX_SAXPARSEMODE_NotSkipSpace | FX_SAXPARSEMODE_NotConvert_amp | - FX_SAXPARSEMODE_NotConvert_lt | FX_SAXPARSEMODE_NotConvert_gt | - FX_SAXPARSEMODE_NotConvert_sharp) < 0) { - return FALSE; - } - return m_pSAXReader->ContinueParse(NULL) > 99; -} -void CXFA_ChecksumContext::FinishChecksum() { - if (m_pSAXReader) { - m_pSAXReader->Release(); - m_pSAXReader = NULL; - } - if (m_pByteContext) { - uint8_t digest[20]; - FXSYS_memset(digest, 0, 20); - CRYPT_SHA1Finish(m_pByteContext, digest); - int32_t nLen = FX_Base64EncodeA(digest, 20, NULL); - FX_CHAR* pBuffer = m_bsChecksum.GetBuffer(nLen); - FX_Base64EncodeA(digest, 20, pBuffer); - m_bsChecksum.ReleaseBuffer(nLen); - FX_Free(m_pByteContext); - m_pByteContext = NULL; - } -} -void CXFA_ChecksumContext::GetChecksum(CFX_ByteString& bsChecksum) { - bsChecksum = m_bsChecksum; -} -void CXFA_ChecksumContext::Update(const CFX_ByteStringC& bsText) { - if (m_pByteContext) { - CRYPT_SHA1Update(m_pByteContext, bsText.GetPtr(), bsText.GetLength()); - } -} |