Remove xfa/src/fxfa/src/common and xfa/src/fxfa/src

This Cl moves the code in xfa/src/fxfa/src/common to the diretory which
contains the respective implementations and removes the xfa/src/fxfa/src/common
directory. It them moves all of the code in xfa/src/fxfa/src up one level and
removes the xfa/src/fxfa/src
directory.

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1770073003 .

1 files changed, 190 insertions, 0 deletions

diff --git a/xfa/src/fxfa/app/xfa_checksum.cpp b/xfa/src/fxfa/app/xfa_checksum.cpp
new file mode 100644
index 0000000000..781a30f798
--- /dev/null
+++ b/xfa/src/fxfa/app/xfa_checksum.cpp
@@ -0,0 +1,190 @@
+// 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/include/fx_alg.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());
+  }
+}