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Unified Diff: xfa/src/fxfa/app/xfa_checksum.cpp

Issue 1803723002: Move xfa/src up to xfa/. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Rebase to master Created 4 years, 9 months ago
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Index: xfa/src/fxfa/app/xfa_checksum.cpp
diff --git a/xfa/src/fxfa/app/xfa_checksum.cpp b/xfa/src/fxfa/app/xfa_checksum.cpp
deleted file mode 100644
index 3df37cf1566c069382d8c65dcdf5cdd3a7a578b0..0000000000000000000000000000000000000000
--- 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());
- }
-}
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