Base64 stuff is all dead code in cxfa_ffdoc.cpp

Change-Id: I6b0d46d913c55de592f10de5bd31a6520b16cd2f
Reviewed-on: https://pdfium-review.googlesource.com/30873
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>

1 files changed, 0 insertions, 162 deletions

diff --git a/xfa/fxfa/cxfa_ffdoc.cpp b/xfa/fxfa/cxfa_ffdoc.cpp
index 9dc58adb9a..828fb58820 100644
--- a/xfa/fxfa/cxfa_ffdoc.cpp
+++ b/xfa/fxfa/cxfa_ffdoc.cpp
@@ -36,127 +36,6 @@
 #include "xfa/fxfa/parser/cxfa_dynamicrender.h"
 #include "xfa/fxfa/parser/cxfa_node.h"
 
-namespace {
-
-struct FX_BASE64DATA {
-  uint32_t data1 : 2;
-  uint32_t data2 : 6;
-  uint32_t data3 : 4;
-  uint32_t data4 : 4;
-  uint32_t data5 : 6;
-  uint32_t data6 : 2;
-  uint32_t data7 : 8;
-};
-
-const uint8_t kStartValuesRemoved = 43;
-const uint8_t kDecoderMapSize = 80;
-const uint8_t g_FXBase64DecoderMap[kDecoderMapSize] = {
-    0x3E, 0xFF, 0xFF, 0xFF, 0x3F, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A,
-    0x3B, 0x3C, 0x3D, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x01,
-    0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D,
-    0x0E, 0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19,
-    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
-    0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B,
-    0x2C, 0x2D, 0x2E, 0x2F, 0x30, 0x31, 0x32, 0x33,
-};
-
-uint8_t base64DecoderValue(uint8_t val) {
-  if (val < kStartValuesRemoved || val >= kStartValuesRemoved + kDecoderMapSize)
-    return 0xFF;
-  return g_FXBase64DecoderMap[val - kStartValuesRemoved];
-}
-
-void Base64DecodePiece(const char src[4],
-                       int32_t iChars,
-                       FX_BASE64DATA& dst,
-                       int32_t& iBytes) {
-  ASSERT(iChars > 0 && iChars < 5);
-  iBytes = 1;
-  dst.data2 = base64DecoderValue(static_cast<uint8_t>(src[0]));
-  if (iChars > 1) {
-    uint8_t b = base64DecoderValue(static_cast<uint8_t>(src[1]));
-    dst.data1 = b >> 4;
-    dst.data4 = b;
-    if (iChars > 2) {
-      iBytes = 2;
-      b = base64DecoderValue(static_cast<uint8_t>(src[2]));
-      dst.data3 = b >> 2;
-      dst.data6 = b;
-      if (iChars > 3) {
-        iBytes = 3;
-        dst.data5 = base64DecoderValue(static_cast<uint8_t>(src[3]));
-      } else {
-        dst.data5 = 0;
-      }
-    } else {
-      dst.data3 = 0;
-    }
-  } else {
-    dst.data1 = 0;
-  }
-}
-
-int32_t Base64DecodeW(const wchar_t* pSrc, int32_t iSrcLen, uint8_t* pDst) {
-  ASSERT(pSrc);
-  if (iSrcLen < 1) {
-    return 0;
-  }
-  while (iSrcLen > 0 && pSrc[iSrcLen - 1] == '=') {
-    iSrcLen--;
-  }
-  if (iSrcLen < 1) {
-    return 0;
-  }
-  if (!pDst) {
-    int32_t iDstLen = iSrcLen / 4 * 3;
-    iSrcLen %= 4;
-    if (iSrcLen == 1) {
-      iDstLen += 1;
-    } else if (iSrcLen == 2) {
-      iDstLen += 1;
-    } else if (iSrcLen == 3) {
-      iDstLen += 2;
-    }
-    return iDstLen;
-  }
-  char srcData[4];
-  FX_BASE64DATA dstData;
-  int32_t iChars = 4, iBytes;
-  uint8_t* pDstEnd = pDst;
-  while (iSrcLen > 0) {
-    if (iSrcLen > 3) {
-      srcData[0] = (char)*pSrc++;
-      srcData[1] = (char)*pSrc++;
-      srcData[2] = (char)*pSrc++;
-      srcData[3] = (char)*pSrc++;
-      iSrcLen -= 4;
-    } else {
-      *((uint32_t*)&dstData) = 0;
-      *((uint32_t*)srcData) = 0;
-      srcData[0] = (char)*pSrc++;
-      if (iSrcLen > 1) {
-        srcData[1] = (char)*pSrc++;
-      }
-      if (iSrcLen > 2) {
-        srcData[2] = (char)*pSrc++;
-      }
-      iChars = iSrcLen;
-      iSrcLen = 0;
-    }
-    Base64DecodePiece(srcData, iChars, dstData, iBytes);
-    *pDstEnd++ = ((uint8_t*)&dstData)[0];
-    if (iBytes > 1) {
-      *pDstEnd++ = ((uint8_t*)&dstData)[1];
-    }
-    if (iBytes > 2) {
-      *pDstEnd++ = ((uint8_t*)&dstData)[2];
-    }
-  }
-  return pDstEnd - pDst;
-}
-
-}  // namespace
-
 CXFA_FFDoc::CXFA_FFDoc(CXFA_FFApp* pApp, IXFA_DocEnvironment* pDocEnvironment)
     : m_pDocEnvironment(pDocEnvironment), m_pApp(pApp) {}
 
@@ -189,47 +68,6 @@ bool CXFA_FFDoc::ParseDoc(CPDF_Object* pElementXFA) {
   return true;
 }
 
-bool XFA_GetPDFContentsFromPDFXML(CFX_XMLNode* pPDFElement,
-                                  uint8_t*& pByteBuffer,
-                                  int32_t& iBufferSize) {
-  CFX_XMLElement* pDocumentElement = nullptr;
-  for (CFX_XMLNode* pXMLNode = pPDFElement->GetFirstChild(); pXMLNode;
-       pXMLNode = pXMLNode->GetNextSibling()) {
-    if (pXMLNode->GetType() == FX_XMLNODE_Element) {
-      CFX_XMLElement* pXMLElement = static_cast<CFX_XMLElement*>(pXMLNode);
-      WideString wsTagName = pXMLElement->GetName();
-      if (wsTagName == L"document") {
-        pDocumentElement = pXMLElement;
-        break;
-      }
-    }
-  }
-  if (!pDocumentElement) {
-    return false;
-  }
-  CFX_XMLElement* pChunkElement = nullptr;
-  for (CFX_XMLNode* pXMLNode = pDocumentElement->GetFirstChild(); pXMLNode;
-       pXMLNode = pXMLNode->GetNextSibling()) {
-    if (pXMLNode->GetType() == FX_XMLNODE_Element) {
-      CFX_XMLElement* pXMLElement = static_cast<CFX_XMLElement*>(pXMLNode);
-      WideString wsTagName = pXMLElement->GetName();
-      if (wsTagName == L"chunk") {
-        pChunkElement = pXMLElement;
-        break;
-      }
-    }
-  }
-  if (!pChunkElement) {
-    return false;
-  }
-  WideString wsPDFContent = pChunkElement->GetTextData();
-  iBufferSize =
-      Base64DecodeW(wsPDFContent.c_str(), wsPDFContent.GetLength(), nullptr);
-  pByteBuffer = FX_Alloc(uint8_t, iBufferSize + 1);
-  pByteBuffer[iBufferSize] = '0';  // FIXME: I bet this is wrong.
-  Base64DecodeW(wsPDFContent.c_str(), wsPDFContent.GetLength(), pByteBuffer);
-  return true;
-}
 void XFA_XPDPacket_MergeRootNode(CXFA_Node* pOriginRoot, CXFA_Node* pNewRoot) {
   CXFA_Node* pChildNode = pNewRoot->GetFirstChild();
   while (pChildNode) {