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Diffstat (limited to 'xfa/fxfa/app/xfa_ffdoc.cpp')
-rw-r--r--xfa/fxfa/app/xfa_ffdoc.cpp160
1 files changed, 140 insertions, 20 deletions
diff --git a/xfa/fxfa/app/xfa_ffdoc.cpp b/xfa/fxfa/app/xfa_ffdoc.cpp
index f93881564d..ce7628e43e 100644
--- a/xfa/fxfa/app/xfa_ffdoc.cpp
+++ b/xfa/fxfa/app/xfa_ffdoc.cpp
@@ -14,7 +14,6 @@
#include "core/fxcrt/include/fx_ext.h"
#include "core/fxcrt/include/fx_memory.h"
#include "xfa/fde/xml/fde_xml_imp.h"
-#include "xfa/fgas/crt/fgas_algorithm.h"
#include "xfa/fwl/core/fwl_noteimp.h"
#include "xfa/fxfa/app/xfa_ffnotify.h"
#include "xfa/fxfa/include/xfa_checksum.h"
@@ -28,6 +27,127 @@
#include "xfa/fxfa/parser/xfa_parser_imp.h"
#include "xfa/fxfa/parser/xfa_parser_imp.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 FX_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 FX_WCHAR* 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;
+ }
+ FX_CHAR srcData[4];
+ FX_BASE64DATA dstData;
+ int32_t iChars = 4, iBytes;
+ uint8_t* pDstEnd = pDst;
+ while (iSrcLen > 0) {
+ if (iSrcLen > 3) {
+ srcData[0] = (FX_CHAR)*pSrc++;
+ srcData[1] = (FX_CHAR)*pSrc++;
+ srcData[2] = (FX_CHAR)*pSrc++;
+ srcData[3] = (FX_CHAR)*pSrc++;
+ iSrcLen -= 4;
+ } else {
+ *((uint32_t*)&dstData) = 0;
+ *((uint32_t*)srcData) = 0;
+ srcData[0] = (FX_CHAR)*pSrc++;
+ if (iSrcLen > 1) {
+ srcData[1] = (FX_CHAR)*pSrc++;
+ }
+ if (iSrcLen > 2) {
+ srcData[2] = (FX_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_DocProvider* pDocProvider)
: m_pDocProvider(pDocProvider),
m_pDocument(nullptr),
@@ -53,7 +173,7 @@ int32_t CXFA_FFDoc::StartLoad() {
FX_BOOL XFA_GetPDFContentsFromPDFXML(CFDE_XMLNode* pPDFElement,
uint8_t*& pByteBuffer,
int32_t& iBufferSize) {
- CFDE_XMLElement* pDocumentElement = NULL;
+ CFDE_XMLElement* pDocumentElement = nullptr;
for (CFDE_XMLNode* pXMLNode =
pPDFElement->GetNodeItem(CFDE_XMLNode::FirstChild);
pXMLNode; pXMLNode = pXMLNode->GetNodeItem(CFDE_XMLNode::NextSibling)) {
@@ -70,7 +190,7 @@ FX_BOOL XFA_GetPDFContentsFromPDFXML(CFDE_XMLNode* pPDFElement,
if (!pDocumentElement) {
return FALSE;
}
- CFDE_XMLElement* pChunkElement = NULL;
+ CFDE_XMLElement* pChunkElement = nullptr;
for (CFDE_XMLNode* pXMLNode =
pDocumentElement->GetNodeItem(CFDE_XMLNode::FirstChild);
pXMLNode; pXMLNode = pXMLNode->GetNodeItem(CFDE_XMLNode::NextSibling)) {
@@ -90,10 +210,10 @@ FX_BOOL XFA_GetPDFContentsFromPDFXML(CFDE_XMLNode* pPDFElement,
CFX_WideString wsPDFContent;
pChunkElement->GetTextData(wsPDFContent);
iBufferSize =
- FX_Base64DecodeW(wsPDFContent.c_str(), wsPDFContent.GetLength(), NULL);
+ Base64DecodeW(wsPDFContent.c_str(), wsPDFContent.GetLength(), nullptr);
pByteBuffer = FX_Alloc(uint8_t, iBufferSize + 1);
pByteBuffer[iBufferSize] = '0'; // FIXME: I bet this is wrong.
- FX_Base64DecodeW(wsPDFContent.c_str(), wsPDFContent.GetLength(), pByteBuffer);
+ Base64DecodeW(wsPDFContent.c_str(), wsPDFContent.GetLength(), pByteBuffer);
return TRUE;
}
void XFA_XPDPacket_MergeRootNode(CXFA_Node* pOriginRoot, CXFA_Node* pNewRoot) {
@@ -109,7 +229,7 @@ void XFA_XPDPacket_MergeRootNode(CXFA_Node* pOriginRoot, CXFA_Node* pNewRoot) {
pNewRoot->RemoveChild(pChildNode);
pOriginRoot->InsertChild(pChildNode);
pChildNode = pNextSibling;
- pNextSibling = NULL;
+ pNextSibling = nullptr;
}
}
}
@@ -125,8 +245,8 @@ int32_t CXFA_FFDoc::DoLoad(IFX_Pause* pPause) {
return XFA_PARSESTATUS_SyntaxErr;
}
int32_t iBufferSize = 0;
- uint8_t* pByteBuffer = NULL;
- IFX_FileRead* pXFAReader = NULL;
+ uint8_t* pByteBuffer = nullptr;
+ IFX_FileRead* pXFAReader = nullptr;
if (XFA_GetPDFContentsFromPDFXML(pPDFXML, pByteBuffer, iBufferSize)) {
pXFAReader = FX_CreateMemoryStream(pByteBuffer, iBufferSize, TRUE);
} else {
@@ -149,9 +269,9 @@ int32_t CXFA_FFDoc::DoLoad(IFX_Pause* pPause) {
if (!pParser) {
return XFA_PARSESTATUS_SyntaxErr;
}
- CXFA_Node* pRootNode = NULL;
+ CXFA_Node* pRootNode = nullptr;
if (pParser->StartParse(m_pStream) == XFA_PARSESTATUS_Ready &&
- pParser->DoParse(NULL) == XFA_PARSESTATUS_Done) {
+ pParser->DoParse(nullptr) == XFA_PARSESTATUS_Done) {
pRootNode = pParser->GetRootNode();
}
if (pRootNode && m_pDocument->GetRoot()) {
@@ -161,7 +281,7 @@ int32_t CXFA_FFDoc::DoLoad(IFX_Pause* pPause) {
iStatus = XFA_PARSESTATUS_StatusErr;
}
pParser->Release();
- pParser = NULL;
+ pParser = nullptr;
}
return iStatus;
}
@@ -217,21 +337,21 @@ FX_BOOL CXFA_FFDoc::OpenDoc(IFX_FileRead* pStream, FX_BOOL bTakeOverFile) {
return TRUE;
}
FX_BOOL CXFA_FFDoc::OpenDoc(CPDF_Document* pPDFDoc) {
- if (pPDFDoc == NULL) {
+ if (!pPDFDoc)
return FALSE;
- }
+
CPDF_Dictionary* pRoot = pPDFDoc->GetRoot();
- if (pRoot == NULL) {
+ if (!pRoot)
return FALSE;
- }
+
CPDF_Dictionary* pAcroForm = pRoot->GetDictBy("AcroForm");
- if (pAcroForm == NULL) {
+ if (!pAcroForm)
return FALSE;
- }
+
CPDF_Object* pElementXFA = pAcroForm->GetDirectObjectBy("XFA");
- if (pElementXFA == NULL) {
+ if (!pElementXFA)
return FALSE;
- }
+
CFX_ArrayTemplate<CPDF_Stream*> xfaStreams;
if (pElementXFA->IsArray()) {
CPDF_Array* pXFAArray = (CPDF_Array*)pElementXFA;
@@ -249,7 +369,7 @@ FX_BOOL CXFA_FFDoc::OpenDoc(CPDF_Document* pPDFDoc) {
m_pPDFDoc = pPDFDoc;
if (m_pStream) {
m_pStream->Release();
- m_pStream = NULL;
+ m_pStream = nullptr;
}
m_pStream = pFileRead;
m_bOwnStream = TRUE;
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-02 03:30:58 +0000