diff options
Diffstat (limited to 'core/src/fpdfapi/fpdf_edit/fpdf_edit_create.cpp')
| -rw-r--r-- | core/src/fpdfapi/fpdf_edit/fpdf_edit_create.cpp | 2131 |
1 files changed, 2131 insertions, 0 deletions
diff --git a/core/src/fpdfapi/fpdf_edit/fpdf_edit_create.cpp b/core/src/fpdfapi/fpdf_edit/fpdf_edit_create.cpp new file mode 100644 index 0000000000..4ec3aa6e5e --- /dev/null +++ b/core/src/fpdfapi/fpdf_edit/fpdf_edit_create.cpp @@ -0,0 +1,2131 @@ +// 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 "../../../include/fpdfapi/fpdf_serial.h"
+#include "editint.h"
+#define PDF_OBJECTSTREAM_MAXLENGTH (256 * 1024)
+#define PDF_XREFSTREAM_MAXSIZE 10000
+extern void FlateEncode(const FX_BYTE* src_buf, FX_DWORD src_data, FX_LPBYTE& dest_buf, FX_DWORD& dest_size);
+extern void FlateEncode(FX_LPCBYTE src_buf, FX_DWORD src_size, int predictor, int Colors, int BitsPerComponent, int Columns,
+ FX_LPBYTE& dest_buf, FX_DWORD& dest_size);
+extern FX_BOOL IsSignatureDict(const CPDF_Dictionary* pDict);
+FX_INT32 PDF_CreatorAppendObject(const CPDF_Object* pObj, CFX_FileBufferArchive *pFile, FX_FILESIZE& offset)
+{
+ FX_INT32 len = 0;
+ if (pObj == NULL) {
+ if (pFile->AppendString(FX_BSTRC(" null")) < 0) {
+ return -1;
+ }
+ offset += 5;
+ return 1;
+ }
+ switch (pObj->GetType()) {
+ case PDFOBJ_NULL:
+ if (pFile->AppendString(FX_BSTRC(" null")) < 0) {
+ return -1;
+ }
+ offset += 5;
+ break;
+ case PDFOBJ_BOOLEAN:
+ case PDFOBJ_NUMBER:
+ if (pFile->AppendString(FX_BSTRC(" ")) < 0) {
+ return -1;
+ }
+ if ((len = pFile->AppendString(pObj->GetString())) < 0) {
+ return -1;
+ }
+ offset += len + 1;
+ break;
+ case PDFOBJ_STRING: {
+ CFX_ByteString str = pObj->GetString();
+ FX_BOOL bHex = ((CPDF_String*)pObj)->IsHex();
+ if ((len = pFile->AppendString(PDF_EncodeString(str, bHex))) < 0) {
+ return -1;
+ }
+ offset += len;
+ break;
+ }
+ case PDFOBJ_NAME: {
+ if (pFile->AppendString(FX_BSTRC("/")) < 0) {
+ return -1;
+ }
+ CFX_ByteString str = pObj->GetString();
+ if ((len = pFile->AppendString(PDF_NameEncode(str))) < 0) {
+ return -1;
+ }
+ offset += len + 1;
+ break;
+ }
+ case PDFOBJ_REFERENCE: {
+ if (pFile->AppendString(FX_BSTRC(" ")) < 0) {
+ return -1;
+ }
+ CPDF_Reference* p = (CPDF_Reference*)pObj;
+ if ((len = pFile->AppendDWord(p->GetRefObjNum())) < 0) {
+ return -1;
+ }
+ if (pFile->AppendString(FX_BSTRC(" 0 R ")) < 0) {
+ return -1;
+ }
+ offset += len + 6;
+ break;
+ }
+ case PDFOBJ_ARRAY: {
+ if (pFile->AppendString(FX_BSTRC("[")) < 0) {
+ return -1;
+ }
+ offset += 1;
+ CPDF_Array* p = (CPDF_Array*)pObj;
+ for (FX_DWORD i = 0; i < p->GetCount(); i ++) {
+ CPDF_Object* pElement = p->GetElement(i);
+ if (pElement->GetObjNum()) {
+ if (pFile->AppendString(FX_BSTRC(" ")) < 0) {
+ return -1;
+ }
+ if ((len = pFile->AppendDWord(pElement->GetObjNum())) < 0) {
+ return -1;
+ }
+ if (pFile->AppendString(FX_BSTRC(" 0 R")) < 0) {
+ return -1;
+ }
+ offset += len + 5;
+ } else {
+ if (PDF_CreatorAppendObject(pElement, pFile, offset) < 0) {
+ return -1;
+ }
+ }
+ }
+ if (pFile->AppendString(FX_BSTRC("]")) < 0) {
+ return -1;
+ }
+ offset += 1;
+ break;
+ }
+ case PDFOBJ_DICTIONARY: {
+ if (pFile->AppendString(FX_BSTRC("<<")) < 0) {
+ return -1;
+ }
+ offset += 2;
+ CPDF_Dictionary* p = (CPDF_Dictionary*)pObj;
+ FX_POSITION pos = p->GetStartPos();
+ while (pos) {
+ CFX_ByteString key;
+ CPDF_Object* pValue = p->GetNextElement(pos, key);
+ if (pFile->AppendString(FX_BSTRC("/")) < 0) {
+ return -1;
+ }
+ if ((len = pFile->AppendString(PDF_NameEncode(key))) < 0) {
+ return -1;
+ }
+ offset += len + 1;
+ if (pValue->GetObjNum()) {
+ if (pFile->AppendString(FX_BSTRC(" ")) < 0) {
+ return -1;
+ }
+ if ((len = pFile->AppendDWord(pValue->GetObjNum())) < 0) {
+ return -1;
+ }
+ if (pFile->AppendString(FX_BSTRC(" 0 R")) < 0) {
+ return -1;
+ }
+ offset += len + 5;
+ } else {
+ if (PDF_CreatorAppendObject(pValue, pFile, offset) < 0) {
+ return -1;
+ }
+ }
+ }
+ if (pFile->AppendString(FX_BSTRC(">>")) < 0) {
+ return -1;
+ }
+ offset += 2;
+ break;
+ }
+ case PDFOBJ_STREAM: {
+ CPDF_Stream* p = (CPDF_Stream*)pObj;
+ if (PDF_CreatorAppendObject(p->GetDict(), pFile, offset) < 0) {
+ return -1;
+ }
+ if (pFile->AppendString(FX_BSTRC("stream\r\n")) < 0) {
+ return -1;
+ }
+ offset += 8;
+ CPDF_StreamAcc acc;
+ acc.LoadAllData(p, TRUE);
+ if (pFile->AppendBlock(acc.GetData(), acc.GetSize()) < 0) {
+ return -1;
+ }
+ offset += acc.GetSize();
+ if ((len = pFile->AppendString(FX_BSTRC("\r\nendstream"))) < 0) {
+ return -1;
+ }
+ offset += len;
+ break;
+ }
+ default:
+ ASSERT(FALSE);
+ break;
+ }
+ return 1;
+}
+FX_INT32 PDF_CreatorWriteTrailer(CPDF_Document* pDocument, CFX_FileBufferArchive* pFile, CPDF_Array* pIDArray, FX_BOOL bCompress)
+{
+ FX_FILESIZE offset = 0;
+ FX_INT32 len = 0;
+ FXSYS_assert(pDocument && pFile);
+ CPDF_Parser *pParser = (CPDF_Parser*)pDocument->GetParser();
+ if (pParser) {
+ CPDF_Dictionary* p = pParser->GetTrailer();
+ FX_POSITION pos = p->GetStartPos();
+ while (pos) {
+ CFX_ByteString key;
+ CPDF_Object* pValue = p->GetNextElement(pos, key);
+ if (key == FX_BSTRC("Encrypt") || key == FX_BSTRC("Size") || key == FX_BSTRC("Filter") ||
+ key == FX_BSTRC("Index") || key == FX_BSTRC("Length") || key == FX_BSTRC("Prev") ||
+ key == FX_BSTRC("W") || key == FX_BSTRC("XRefStm") || key == FX_BSTRC("Type") || key == FX_BSTRC("ID")) {
+ continue;
+ }
+ if (bCompress && key == FX_BSTRC("DecodeParms")) {
+ continue;
+ }
+ if (pFile->AppendString((FX_BSTRC("/"))) < 0) {
+ return -1;
+ }
+ if ((len = pFile->AppendString(PDF_NameEncode(key))) < 0) {
+ return -1;
+ }
+ offset += len + 1;
+ if (pValue->GetObjNum()) {
+ if (pFile->AppendString(FX_BSTRC(" ")) < 0) {
+ return -1;
+ }
+ if ((len = pFile->AppendDWord(pValue->GetObjNum())) < 0) {
+ return -1;
+ }
+ if (pFile->AppendString(FX_BSTRC(" 0 R ")) < 0) {
+ return -1;
+ }
+ offset += len + 6;
+ } else {
+ if (PDF_CreatorAppendObject(pValue, pFile, offset) < 0) {
+ return -1;
+ }
+ }
+ }
+ if (pIDArray) {
+ if (pFile->AppendString((FX_BSTRC("/ID"))) < 0) {
+ return -1;
+ }
+ offset += 3;
+ if (PDF_CreatorAppendObject(pIDArray, pFile, offset) < 0) {
+ return -1;
+ }
+ }
+ return offset;
+ }
+ if (pFile->AppendString(FX_BSTRC("\r\n/Root ")) < 0) {
+ return -1;
+ }
+ if ((len = pFile->AppendDWord(pDocument->GetRoot()->GetObjNum())) < 0) {
+ return -1;
+ }
+ if (pFile->AppendString(FX_BSTRC(" 0 R\r\n")) < 0) {
+ return -1;
+ }
+ offset += len + 14;
+ if (pDocument->GetInfo()) {
+ if (pFile->AppendString(FX_BSTRC("/Info ")) < 0) {
+ return -1;
+ }
+ if ((len = pFile->AppendDWord(pDocument->GetInfo()->GetObjNum())) < 0) {
+ return -1;
+ }
+ if (pFile->AppendString(FX_BSTRC(" 0 R\r\n")) < 0) {
+ return -1;
+ }
+ offset += len + 12;
+ }
+ if (pIDArray) {
+ if (pFile->AppendString((FX_BSTRC("/ID"))) < 0) {
+ return -1;
+ }
+ offset += 3;
+ if (PDF_CreatorAppendObject(pIDArray, pFile, offset) < 0) {
+ return -1;
+ }
+ }
+ return offset;
+}
+FX_INT32 PDF_CreatorWriteEncrypt(const CPDF_Dictionary* pEncryptDict, FX_DWORD dwObjNum, CFX_FileBufferArchive *pFile)
+{
+ if (!pEncryptDict) {
+ return 0;
+ }
+ FXSYS_assert(pFile);
+ FX_FILESIZE offset = 0;
+ FX_INT32 len = 0;
+ if (pFile->AppendString(FX_BSTRC("/Encrypt")) < 0) {
+ return -1;
+ }
+ offset += 8;
+ if (pFile->AppendString(FX_BSTRC(" ")) < 0) {
+ return -1;
+ }
+ if ((len = pFile->AppendDWord(dwObjNum)) < 0) {
+ return -1;
+ }
+ if (pFile->AppendString(FX_BSTRC(" 0 R ")) < 0) {
+ return -1;
+ }
+ offset += len + 6;
+ return offset;
+}
+FX_BOOL PDF_GenerateFileID(FX_DWORD dwSeed1, FX_DWORD dwSeed2, FX_LPDWORD pBuffer)
+{
+ if (!pBuffer) {
+ return FALSE;
+ }
+ FX_LPVOID pContext = FX_Random_MT_Start(dwSeed1);
+ FX_INT32 i = 0;
+ for (i = 0; i < 2; i++) {
+ *pBuffer++ = FX_Random_MT_Generate(pContext);
+ }
+ FX_Random_MT_Close(pContext);
+ pContext = FX_Random_MT_Start(dwSeed2);
+ for (i = 0; i < 2; i++) {
+ *pBuffer++ = FX_Random_MT_Generate(pContext);
+ }
+ FX_Random_MT_Close(pContext);
+ return TRUE;
+}
+class CPDF_FlateEncoder
+{
+public:
+ CPDF_FlateEncoder();
+ ~CPDF_FlateEncoder();
+ FX_BOOL Initialize(CPDF_Stream* pStream, FX_BOOL bFlateEncode);
+ FX_BOOL Initialize(FX_LPCBYTE pBuffer, FX_DWORD size, FX_BOOL bFlateEncode, FX_BOOL bXRefStream = FALSE);
+ void CloneDict();
+ FX_LPBYTE m_pData;
+ FX_DWORD m_dwSize;
+ CPDF_Dictionary* m_pDict;
+ FX_BOOL m_bCloned;
+ FX_BOOL m_bNewData;
+ CPDF_StreamAcc m_Acc;
+};
+CPDF_FlateEncoder::CPDF_FlateEncoder()
+{
+ m_pData = NULL;
+ m_dwSize = 0;
+ m_pDict = NULL;
+ m_bCloned = FALSE;
+ m_bNewData = FALSE;
+}
+void CPDF_FlateEncoder::CloneDict()
+{
+ if (!m_bCloned) {
+ m_pDict = (CPDF_Dictionary*)m_pDict->Clone();
+ m_bCloned = TRUE;
+ }
+}
+FX_BOOL CPDF_FlateEncoder::Initialize(CPDF_Stream* pStream, FX_BOOL bFlateEncode)
+{
+ m_Acc.LoadAllData(pStream, TRUE);
+ if (pStream->GetDict()->KeyExist("Filter") || !bFlateEncode) {
+ if (pStream->GetDict()->KeyExist("Filter") && !bFlateEncode) {
+ CPDF_StreamAcc destAcc;
+ destAcc.LoadAllData(pStream);
+ m_dwSize = destAcc.GetSize();
+ m_pData = (FX_LPBYTE)destAcc.DetachData();
+ m_pDict = (CPDF_Dictionary*)pStream->GetDict()->Clone();
+ m_pDict->RemoveAt(FX_BSTRC("Filter"));
+ m_bNewData = TRUE;
+ m_bCloned = TRUE;
+ } else {
+ m_pData = (FX_LPBYTE)m_Acc.GetData();
+ m_dwSize = m_Acc.GetSize();
+ m_pDict = pStream->GetDict();
+ }
+ return TRUE;
+ }
+ m_pData = NULL;
+ m_dwSize = 0;
+ m_bNewData = TRUE;
+ m_bCloned = TRUE;
+ ::FlateEncode(m_Acc.GetData(), m_Acc.GetSize(), m_pData, m_dwSize);
+ m_pDict = (CPDF_Dictionary*)pStream->GetDict()->Clone();
+ m_pDict->SetAtInteger("Length", m_dwSize);
+ m_pDict->SetAtName("Filter", "FlateDecode");
+ m_pDict->RemoveAt("DecodeParms");
+ return TRUE;
+}
+FX_BOOL CPDF_FlateEncoder::Initialize(FX_LPCBYTE pBuffer, FX_DWORD size, FX_BOOL bFlateEncode, FX_BOOL bXRefStream)
+{
+ if (!bFlateEncode) {
+ m_pData = (FX_LPBYTE)pBuffer;
+ m_dwSize = size;
+ return TRUE;
+ }
+ m_bNewData = TRUE;
+ if (bXRefStream) {
+ ::FlateEncode(pBuffer, size, 12, 1, 8, 7, m_pData, m_dwSize);
+ } else {
+ ::FlateEncode(pBuffer, size, m_pData, m_dwSize);
+ }
+ return TRUE;
+}
+CPDF_FlateEncoder::~CPDF_FlateEncoder()
+{
+ if (m_bCloned && m_pDict) {
+ m_pDict->Release();
+ }
+ if (m_bNewData && m_pData) {
+ FX_Free(m_pData);
+ }
+}
+class CPDF_Encryptor
+{
+public:
+ CPDF_Encryptor();
+ ~CPDF_Encryptor();
+ FX_BOOL Initialize(CPDF_CryptoHandler* pHandler, int objnum, FX_LPBYTE src_data, FX_DWORD src_size);
+ FX_LPBYTE m_pData;
+ FX_DWORD m_dwSize;
+ FX_BOOL m_bNewBuf;
+};
+CPDF_Encryptor::CPDF_Encryptor()
+{
+ m_pData = NULL;
+ m_dwSize = 0;
+ m_bNewBuf = FALSE;
+}
+FX_BOOL CPDF_Encryptor::Initialize(CPDF_CryptoHandler* pHandler, int objnum, FX_LPBYTE src_data, FX_DWORD src_size)
+{
+ if (src_size == 0) {
+ return TRUE;
+ }
+ if (pHandler == NULL) {
+ m_pData = (FX_LPBYTE)src_data;
+ m_dwSize = src_size;
+ m_bNewBuf = FALSE;
+ return TRUE;
+ }
+ m_dwSize = pHandler->EncryptGetSize(objnum, 0, src_data, src_size);
+ m_pData = FX_Alloc(FX_BYTE, m_dwSize);
+ if(!m_pData) {
+ return FALSE;
+ }
+ pHandler->EncryptContent(objnum, 0, src_data, src_size, m_pData, m_dwSize);
+ m_bNewBuf = TRUE;
+ return TRUE;
+}
+CPDF_Encryptor::~CPDF_Encryptor()
+{
+ if (m_bNewBuf) {
+ FX_Free(m_pData);
+ }
+}
+CPDF_ObjectStream::CPDF_ObjectStream()
+ : m_dwObjNum(0)
+ , m_index(0)
+{
+}
+FX_BOOL CPDF_ObjectStream::Start()
+{
+ m_ObjNumArray.RemoveAll();
+ m_OffsetArray.RemoveAll();
+ m_Buffer.Clear();
+ m_dwObjNum = 0;
+ m_index = 0;
+ return TRUE;
+}
+FX_INT32 CPDF_ObjectStream::CompressIndirectObject(FX_DWORD dwObjNum, const CPDF_Object *pObj)
+{
+ m_ObjNumArray.Add(dwObjNum);
+ m_OffsetArray.Add(m_Buffer.GetLength());
+ m_Buffer << pObj;
+ return 1;
+}
+FX_INT32 CPDF_ObjectStream::CompressIndirectObject(FX_DWORD dwObjNum, FX_LPCBYTE pBuffer, FX_DWORD dwSize)
+{
+ m_ObjNumArray.Add(dwObjNum);
+ m_OffsetArray.Add(m_Buffer.GetLength());
+ m_Buffer.AppendBlock(pBuffer, dwSize);
+ return 1;
+}
+FX_FILESIZE CPDF_ObjectStream::End(CPDF_Creator* pCreator)
+{
+ FXSYS_assert(pCreator);
+ if (m_ObjNumArray.GetSize() == 0) {
+ return 0;
+ }
+ CFX_FileBufferArchive *pFile = &pCreator->m_File;
+ CPDF_CryptoHandler *pHandler = pCreator->m_pCryptoHandler;
+ FX_FILESIZE ObjOffset = pCreator->m_Offset;
+ if (!m_dwObjNum) {
+ m_dwObjNum = ++pCreator->m_dwLastObjNum;
+ }
+ CFX_ByteTextBuf tempBuffer;
+ FX_INT32 iCount = m_ObjNumArray.GetSize();
+ for (FX_INT32 i = 0; i < iCount; i++) {
+ tempBuffer << m_ObjNumArray.ElementAt(i) << FX_BSTRC(" ") << m_OffsetArray.ElementAt(i) << FX_BSTRC(" ");
+ }
+ FX_FILESIZE &offset = pCreator->m_Offset;
+ FX_INT32 len = pFile->AppendDWord(m_dwObjNum);
+ if (len < 0) {
+ return -1;
+ }
+ offset += len;
+ if ((len = pFile->AppendString(FX_BSTRC(" 0 obj\r\n<</Type /ObjStm /N "))) < 0) {
+ return -1;
+ }
+ offset += len;
+ if ((len = pFile->AppendDWord((FX_DWORD)iCount)) < 0) {
+ return -1;
+ }
+ offset += len;
+ if (pFile->AppendString(FX_BSTRC("/First ")) < 0) {
+ return -1;
+ }
+ if ((len = pFile->AppendDWord((FX_DWORD)tempBuffer.GetLength())) < 0) {
+ return -1;
+ }
+ if (pFile->AppendString(FX_BSTRC("/Length ")) < 0) {
+ return -1;
+ }
+ offset += len + 15;
+ if (!pCreator->m_bCompress && !pHandler) {
+ if ((len = pFile->AppendDWord((FX_DWORD)(tempBuffer.GetLength() + m_Buffer.GetLength()))) < 0) {
+ return -1;
+ }
+ offset += len;
+ if ((len = pFile->AppendString(FX_BSTRC(">>stream\r\n"))) < 0) {
+ return -1;
+ }
+ if (pFile->AppendBlock(tempBuffer.GetBuffer(), tempBuffer.GetLength()) < 0) {
+ return -1;
+ }
+ if (pFile->AppendBlock(m_Buffer.GetBuffer(), m_Buffer.GetLength()) < 0) {
+ return -1;
+ }
+ offset += len + tempBuffer.GetLength() + m_Buffer.GetLength();
+ } else {
+ tempBuffer << m_Buffer;
+ CPDF_FlateEncoder encoder;
+ encoder.Initialize(tempBuffer.GetBuffer(), tempBuffer.GetLength(), pCreator->m_bCompress);
+ CPDF_Encryptor encryptor;
+ encryptor.Initialize(pHandler, m_dwObjNum, encoder.m_pData, encoder.m_dwSize);
+ if ((len = pFile->AppendDWord(encryptor.m_dwSize)) < 0) {
+ return -1;
+ }
+ offset += len;
+ if (pCreator->m_bCompress) {
+ if (pFile->AppendString(FX_BSTRC("/Filter /FlateDecode")) < 0) {
+ return -1;
+ }
+ offset += 20;
+ }
+ if ((len = pFile->AppendString(FX_BSTRC(">>stream\r\n"))) < 0) {
+ return -1;
+ }
+ if (pFile->AppendBlock(encryptor.m_pData, encryptor.m_dwSize) < 0) {
+ return -1;
+ }
+ offset += len + encryptor.m_dwSize;
+ }
+ if ((len = pFile->AppendString(FX_BSTRC("\r\nendstream\r\nendobj\r\n"))) < 0) {
+ return -1;
+ }
+ offset += len;
+ return ObjOffset;
+}
+CPDF_XRefStream::CPDF_XRefStream()
+ : m_PrevOffset(0)
+ , m_iSeg(0)
+ , m_dwTempObjNum(0)
+{
+}
+FX_BOOL CPDF_XRefStream::Start()
+{
+ m_IndexArray.RemoveAll();
+ m_Buffer.Clear();
+ m_iSeg = 0;
+ return TRUE;
+}
+FX_INT32 CPDF_XRefStream::CompressIndirectObject(FX_DWORD dwObjNum, const CPDF_Object *pObj, CPDF_Creator *pCreator)
+{
+ if (!pCreator) {
+ return 0;
+ }
+ m_ObjStream.CompressIndirectObject(dwObjNum, pObj);
+ if (m_ObjStream.m_ObjNumArray.GetSize() < pCreator->m_ObjectStreamSize &&
+ m_ObjStream.m_Buffer.GetLength() < PDF_OBJECTSTREAM_MAXLENGTH) {
+ return 1;
+ }
+ return EndObjectStream(pCreator);
+}
+FX_INT32 CPDF_XRefStream::CompressIndirectObject(FX_DWORD dwObjNum, FX_LPCBYTE pBuffer, FX_DWORD dwSize, CPDF_Creator *pCreator)
+{
+ if (!pCreator) {
+ return 0;
+ }
+ m_ObjStream.CompressIndirectObject(dwObjNum, pBuffer, dwSize);
+ if (m_ObjStream.m_ObjNumArray.GetSize() < pCreator->m_ObjectStreamSize &&
+ m_ObjStream.m_Buffer.GetLength() < PDF_OBJECTSTREAM_MAXLENGTH) {
+ return 1;
+ }
+ return EndObjectStream(pCreator);
+}
+static void _AppendIndex0(CFX_ByteTextBuf& buffer, FX_BOOL bFirstObject = TRUE)
+{
+ buffer.AppendByte(0);
+ buffer.AppendByte(0);
+ buffer.AppendByte(0);
+ buffer.AppendByte(0);
+ buffer.AppendByte(0);
+ if (bFirstObject) {
+ buffer.AppendByte(0xFF);
+ buffer.AppendByte(0xFF);
+ } else {
+ buffer.AppendByte(0);
+ buffer.AppendByte(0);
+ }
+}
+static void _AppendIndex1(CFX_ByteTextBuf& buffer, FX_FILESIZE offset)
+{
+ buffer.AppendByte(1);
+ buffer.AppendByte(FX_GETBYTEOFFSET24(offset));
+ buffer.AppendByte(FX_GETBYTEOFFSET16(offset));
+ buffer.AppendByte(FX_GETBYTEOFFSET8(offset));
+ buffer.AppendByte(FX_GETBYTEOFFSET0(offset));
+ buffer.AppendByte(0);
+ buffer.AppendByte(0);
+}
+static void _AppendIndex2(CFX_ByteTextBuf& buffer, FX_DWORD objnum, FX_INT32 index)
+{
+ buffer.AppendByte(2);
+ buffer.AppendByte(FX_GETBYTEOFFSET24(objnum));
+ buffer.AppendByte(FX_GETBYTEOFFSET16(objnum));
+ buffer.AppendByte(FX_GETBYTEOFFSET8(objnum));
+ buffer.AppendByte(FX_GETBYTEOFFSET0(objnum));
+ buffer.AppendByte(FX_GETBYTEOFFSET8(index));
+ buffer.AppendByte(FX_GETBYTEOFFSET0(index));
+}
+FX_INT32 CPDF_XRefStream::EndObjectStream(CPDF_Creator *pCreator, FX_BOOL bEOF)
+{
+ FX_FILESIZE objOffset = 0;
+ if (bEOF) {
+ objOffset = m_ObjStream.End(pCreator);
+ if (objOffset < 0) {
+ return -1;
+ }
+ }
+ FX_DWORD &dwObjStmNum = m_ObjStream.m_dwObjNum;
+ if (!dwObjStmNum) {
+ dwObjStmNum = ++pCreator->m_dwLastObjNum;
+ }
+ FX_INT32 iSize = m_ObjStream.m_ObjNumArray.GetSize();
+ FX_INT32 iSeg = m_IndexArray.GetSize() / 2;
+ if (!(pCreator->m_dwFlags & FPDFCREATE_INCREMENTAL)) {
+ if (m_dwTempObjNum == 0) {
+ _AppendIndex0(m_Buffer);
+ m_dwTempObjNum++;
+ }
+ FX_DWORD end_num = m_IndexArray.GetAt((iSeg - 1) * 2) + m_IndexArray.GetAt((iSeg - 1) * 2 + 1);
+ int index = 0;
+ for (; m_dwTempObjNum < end_num; m_dwTempObjNum++) {
+ FX_FILESIZE* offset = pCreator->m_ObjectOffset.GetPtrAt(m_dwTempObjNum);
+ if (offset) {
+ if (index >= iSize || m_dwTempObjNum != m_ObjStream.m_ObjNumArray[index]) {
+ _AppendIndex1(m_Buffer, *offset);
+ } else {
+ _AppendIndex2(m_Buffer, dwObjStmNum, index++);
+ }
+ } else {
+ _AppendIndex0(m_Buffer, FALSE);
+ }
+ }
+ if (iSize > 0 && bEOF) {
+ pCreator->m_ObjectOffset.Add(dwObjStmNum, 1);
+ pCreator->m_ObjectSize.Add(dwObjStmNum, 1);
+ pCreator->m_ObjectOffset[dwObjStmNum] = objOffset;
+ }
+ m_iSeg = iSeg;
+ if (bEOF) {
+ m_ObjStream.Start();
+ }
+ return 1;
+ }
+ FX_INT32 &j = m_ObjStream.m_index;
+ for (int i = m_iSeg; i < iSeg; i++) {
+ FX_DWORD start = m_IndexArray.ElementAt(i * 2);
+ FX_DWORD end = m_IndexArray.ElementAt(i * 2 + 1) + start;
+ for (FX_DWORD m = start; m < end; m++) {
+ if (j >= iSize || m != m_ObjStream.m_ObjNumArray.ElementAt(j)) {
+ _AppendIndex1(m_Buffer, pCreator->m_ObjectOffset[m]);
+ } else {
+ _AppendIndex2(m_Buffer, dwObjStmNum, j++);
+ }
+ }
+ }
+ if (iSize > 0 && bEOF) {
+ _AppendIndex1(m_Buffer, objOffset);
+ m_IndexArray.Add(dwObjStmNum);
+ m_IndexArray.Add(1);
+ iSeg += 1;
+ }
+ m_iSeg = iSeg;
+ if (bEOF) {
+ m_ObjStream.Start();
+ }
+ return 1;
+}
+FX_BOOL CPDF_XRefStream::GenerateXRefStream(CPDF_Creator* pCreator, FX_BOOL bEOF)
+{
+ FX_FILESIZE offset_tmp = pCreator->m_Offset;
+ FX_DWORD objnum = ++pCreator->m_dwLastObjNum;
+ CFX_FileBufferArchive *pFile = &pCreator->m_File;
+ FX_BOOL bIncremental = (pCreator->m_dwFlags & FPDFCREATE_INCREMENTAL) != 0;
+ if (bIncremental) {
+ AddObjectNumberToIndexArray(objnum);
+ } else {
+ for (; m_dwTempObjNum < pCreator->m_dwLastObjNum; m_dwTempObjNum++) {
+ FX_FILESIZE* offset = pCreator->m_ObjectOffset.GetPtrAt(m_dwTempObjNum);
+ if (offset) {
+ _AppendIndex1(m_Buffer, *offset);
+ } else {
+ _AppendIndex0(m_Buffer, FALSE);
+ }
+ }
+ }
+ _AppendIndex1(m_Buffer, offset_tmp);
+ FX_FILESIZE &offset = pCreator->m_Offset;
+ FX_INT32 len = pFile->AppendDWord(objnum);
+ if (len < 0) {
+ return FALSE;
+ }
+ offset += len;
+ if ((len = pFile->AppendString(FX_BSTRC(" 0 obj\r\n<</Type /XRef/W[1 4 2]/Index["))) < 0) {
+ return FALSE;
+ }
+ offset += len;
+ if (!bIncremental) {
+ if ((len = pFile->AppendDWord(0)) < 0) {
+ return FALSE;
+ }
+ if ((len = pFile->AppendString(FX_BSTRC(" "))) < 0) {
+ return FALSE;
+ }
+ offset += len + 1;
+ if ((len = pFile->AppendDWord(objnum + 1)) < 0) {
+ return FALSE;
+ }
+ offset += len;
+ } else {
+ FX_INT32 iSeg = m_IndexArray.GetSize() / 2;
+ for (FX_INT32 i = 0; i < iSeg; i++) {
+ if ((len = pFile->AppendDWord(m_IndexArray.ElementAt(i * 2))) < 0) {
+ return FALSE;
+ }
+ if (pFile->AppendString(FX_BSTRC(" ")) < 0) {
+ return FALSE;
+ }
+ offset += len + 1;
+ if ((len = pFile->AppendDWord(m_IndexArray.ElementAt(i * 2 + 1))) < 0) {
+ return FALSE;
+ }
+ if (pFile->AppendString(FX_BSTRC(" ")) < 0) {
+ return FALSE;
+ }
+ offset += len + 1;
+ }
+ }
+ if (pFile->AppendString(FX_BSTRC("]/Size ")) < 0) {
+ return FALSE;
+ }
+ if ((len = pFile->AppendDWord(objnum + 1)) < 0) {
+ return FALSE;
+ }
+ offset += len + 7;
+ if (m_PrevOffset > 0) {
+ if (pFile->AppendString(FX_BSTRC("/Prev ")) < 0) {
+ return -1;
+ }
+ FX_CHAR offset_buf[20];
+ FXSYS_memset32(offset_buf, 0, sizeof(offset_buf));
+ FXSYS_i64toa(m_PrevOffset, offset_buf, 10);
+ FX_INT32 len = (FX_INT32)FXSYS_strlen(offset_buf);
+ if (pFile->AppendBlock(offset_buf, len) < 0) {
+ return -1;
+ }
+ offset += len + 6;
+ }
+ FX_BOOL bPredictor = TRUE;
+ CPDF_FlateEncoder encoder;
+ encoder.Initialize(m_Buffer.GetBuffer(), m_Buffer.GetLength(), pCreator->m_bCompress, bPredictor);
+ if (pCreator->m_bCompress) {
+ if (pFile->AppendString(FX_BSTRC("/Filter /FlateDecode")) < 0) {
+ return FALSE;
+ }
+ offset += 20;
+ if (bPredictor) {
+ if ((len = pFile->AppendString(FX_BSTRC("/DecodeParms<</Columns 7/Predictor 12>>"))) < 0) {
+ return FALSE;
+ }
+ offset += len;
+ }
+ }
+ if (pFile->AppendString(FX_BSTRC("/Length ")) < 0) {
+ return FALSE;
+ }
+ if ((len = pFile->AppendDWord(encoder.m_dwSize)) < 0) {
+ return FALSE;
+ }
+ offset += len + 8;
+ if (bEOF) {
+ if ((len = PDF_CreatorWriteTrailer(pCreator->m_pDocument, pFile, pCreator->m_pIDArray, pCreator->m_bCompress)) < 0) {
+ return -1;
+ }
+ offset += len;
+ if (pCreator->m_pEncryptDict) {
+ FX_DWORD dwEncryptObjNum = pCreator->m_pEncryptDict->GetObjNum();
+ if (dwEncryptObjNum == 0) {
+ dwEncryptObjNum = pCreator->m_dwEnryptObjNum;
+ }
+ if ((len = PDF_CreatorWriteEncrypt(pCreator->m_pEncryptDict, dwEncryptObjNum, pFile)) < 0) {
+ return -1;
+ }
+ offset += len;
+ }
+ }
+ if ((len = pFile->AppendString(FX_BSTRC(">>stream\r\n"))) < 0) {
+ return FALSE;
+ }
+ offset += len;
+ if (pFile->AppendBlock(encoder.m_pData, encoder.m_dwSize) < 0) {
+ return FALSE;
+ }
+ if ((len = pFile->AppendString(FX_BSTRC("\r\nendstream\r\nendobj\r\n"))) < 0) {
+ return FALSE;
+ }
+ offset += encoder.m_dwSize + len;
+ m_PrevOffset = offset_tmp;
+ return TRUE;
+}
+FX_BOOL CPDF_XRefStream::End(CPDF_Creator *pCreator, FX_BOOL bEOF )
+{
+ if (EndObjectStream(pCreator, bEOF) < 0) {
+ return FALSE;
+ }
+ return GenerateXRefStream(pCreator, bEOF);
+}
+FX_BOOL CPDF_XRefStream::EndXRefStream(CPDF_Creator* pCreator)
+{
+ if (!(pCreator->m_dwFlags & FPDFCREATE_INCREMENTAL)) {
+ _AppendIndex0(m_Buffer);
+ for (FX_DWORD i = 1; i < pCreator->m_dwLastObjNum + 1; i++) {
+ FX_FILESIZE* offset = pCreator->m_ObjectOffset.GetPtrAt(i);
+ if (offset) {
+ _AppendIndex1(m_Buffer, *offset);
+ } else {
+ _AppendIndex0(m_Buffer, FALSE);
+ }
+ }
+ } else {
+ FX_INT32 iSeg = m_IndexArray.GetSize() / 2;
+ for (int i = 0; i < iSeg; i++) {
+ FX_DWORD start = m_IndexArray.ElementAt(i * 2);
+ FX_DWORD end = m_IndexArray.ElementAt(i * 2 + 1) + start;
+ for (FX_DWORD j = start; j < end; j++) {
+ _AppendIndex1(m_Buffer, pCreator->m_ObjectOffset[j]);
+ }
+ }
+ }
+ return GenerateXRefStream(pCreator, FALSE);
+}
+FX_BOOL CPDF_XRefStream::AddObjectNumberToIndexArray(FX_DWORD objnum)
+{
+ FX_INT32 iSize = m_IndexArray.GetSize();
+ if (iSize == 0) {
+ m_IndexArray.Add(objnum);
+ m_IndexArray.Add(1);
+ } else {
+ FXSYS_assert(iSize > 1);
+ FX_DWORD startobjnum = m_IndexArray.ElementAt(iSize - 2);
+ FX_INT32 iCount = m_IndexArray.ElementAt(iSize - 1);
+ if (objnum == startobjnum + iCount) {
+ m_IndexArray[iSize - 1] = iCount + 1;
+ } else {
+ m_IndexArray.Add(objnum);
+ m_IndexArray.Add(1);
+ }
+ }
+ return TRUE;
+}
+CPDF_Creator::CPDF_Creator(CPDF_Document* pDoc)
+{
+ m_pDocument = pDoc;
+ m_pParser = (CPDF_Parser*)pDoc->m_pParser;
+ m_bCompress = TRUE;
+ if (m_pParser) {
+ m_pEncryptDict = m_pParser->GetEncryptDict();
+ m_pCryptoHandler = m_pParser->GetCryptoHandler();
+ } else {
+ m_pEncryptDict = NULL;
+ m_pCryptoHandler = NULL;
+ }
+ m_bSecurityChanged = FALSE;
+ m_bStandardSecurity = FALSE;
+ m_pMetadata = NULL;
+ m_bEncryptCloned = FALSE;
+ m_bEncryptMetadata = FALSE;
+ m_Offset = 0;
+ m_iStage = -1;
+ m_dwFlags = 0;
+ m_Pos = NULL;
+ m_XrefStart = 0;
+ m_pXRefStream = NULL;
+ m_ObjectStreamSize = 200;
+ m_dwLastObjNum = m_pDocument->GetLastObjNum();
+ m_pIDArray = NULL;
+ m_FileVersion = 0;
+ m_dwEnryptObjNum = 0;
+ m_bNewCrypto = FALSE;
+}
+CPDF_Creator::~CPDF_Creator()
+{
+ ResetStandardSecurity();
+ if (m_bEncryptCloned && m_pEncryptDict) {
+ m_pEncryptDict->Release();
+ m_pEncryptDict = NULL;
+ }
+ Clear();
+}
+static FX_BOOL _IsXRefNeedEnd(CPDF_XRefStream* pXRef, FX_DWORD flag)
+{
+ if (!(flag & FPDFCREATE_INCREMENTAL)) {
+ return FALSE;
+ }
+ FX_INT32 iSize = pXRef->m_IndexArray.GetSize() / 2;
+ FX_INT32 iCount = 0;
+ for (FX_INT32 i = 0; i < iSize; i++) {
+ iCount += pXRef->m_IndexArray.ElementAt(i * 2 + 1);
+ }
+ return (iCount >= PDF_XREFSTREAM_MAXSIZE);
+}
+FX_INT32 CPDF_Creator::WriteIndirectObjectToStream(const CPDF_Object* pObj)
+{
+ if (!m_pXRefStream) {
+ return 1;
+ }
+ FX_DWORD objnum = pObj->GetObjNum();
+ if (m_pParser && m_pParser->m_ObjVersion.GetSize() > (FX_INT32)objnum && m_pParser->m_ObjVersion[objnum] > 0) {
+ return 1;
+ }
+ if (pObj->GetType() == PDFOBJ_NUMBER) {
+ return 1;
+ }
+ CPDF_Dictionary *pDict = pObj->GetDict();
+ if (pObj->GetType() == PDFOBJ_STREAM) {
+ if (pDict && pDict->GetString(FX_BSTRC("Type")) == FX_BSTRC("XRef")) {
+ return 0;
+ }
+ return 1;
+ }
+ if (pDict) {
+ if (pDict == m_pDocument->m_pRootDict || pDict == m_pEncryptDict) {
+ return 1;
+ }
+ if (IsSignatureDict(pDict)) {
+ return 1;
+ }
+ if (pDict->GetString(FX_BSTRC("Type")) == FX_BSTRC("Page")) {
+ return 1;
+ }
+ }
+ m_pXRefStream->AddObjectNumberToIndexArray(objnum);
+ if (m_pXRefStream->CompressIndirectObject(objnum, pObj, this) < 0) {
+ return -1;
+ }
+ if (!_IsXRefNeedEnd(m_pXRefStream, m_dwFlags)) {
+ return 0;
+ }
+ if (!m_pXRefStream->End(this)) {
+ return -1;
+ }
+ if (!m_pXRefStream->Start()) {
+ return -1;
+ }
+ return 0;
+}
+FX_INT32 CPDF_Creator::WriteIndirectObjectToStream(FX_DWORD objnum, FX_LPCBYTE pBuffer, FX_DWORD dwSize)
+{
+ if (!m_pXRefStream) {
+ return 1;
+ }
+ m_pXRefStream->AddObjectNumberToIndexArray(objnum);
+ FX_INT32 iRet = m_pXRefStream->CompressIndirectObject(objnum, pBuffer, dwSize, this);
+ if (iRet < 1) {
+ return iRet;
+ }
+ if (!_IsXRefNeedEnd(m_pXRefStream, m_dwFlags)) {
+ return 0;
+ }
+ if (!m_pXRefStream->End(this)) {
+ return -1;
+ }
+ if (!m_pXRefStream->Start()) {
+ return -1;
+ }
+ return 0;
+}
+FX_INT32 CPDF_Creator::AppendObjectNumberToXRef(FX_DWORD objnum)
+{
+ if (!m_pXRefStream) {
+ return 1;
+ }
+ m_pXRefStream->AddObjectNumberToIndexArray(objnum);
+ if (!_IsXRefNeedEnd(m_pXRefStream, m_dwFlags)) {
+ return 0;
+ }
+ if (!m_pXRefStream->End(this)) {
+ return -1;
+ }
+ if (!m_pXRefStream->Start()) {
+ return -1;
+ }
+ return 0;
+}
+FX_INT32 CPDF_Creator::WriteStream(const CPDF_Object* pStream, FX_DWORD objnum, CPDF_CryptoHandler* pCrypto)
+{
+ CPDF_FlateEncoder encoder;
+ encoder.Initialize((CPDF_Stream*)pStream, pStream == m_pMetadata ? FALSE : m_bCompress);
+ CPDF_Encryptor encryptor;
+ if(!encryptor.Initialize(pCrypto, objnum, encoder.m_pData, encoder.m_dwSize)) {
+ return -1;
+ }
+ if ((FX_DWORD)encoder.m_pDict->GetInteger(FX_BSTRC("Length")) != encryptor.m_dwSize) {
+ encoder.CloneDict();
+ encoder.m_pDict->SetAtInteger(FX_BSTRC("Length"), encryptor.m_dwSize);
+ }
+ if (WriteDirectObj(objnum, encoder.m_pDict) < 0) {
+ return -1;
+ }
+ int len = m_File.AppendString(FX_BSTRC("stream\r\n"));
+ if (len < 0) {
+ return -1;
+ }
+ m_Offset += len;
+ if (m_File.AppendBlock(encryptor.m_pData, encryptor.m_dwSize) < 0) {
+ return -1;
+ }
+ m_Offset += encryptor.m_dwSize;
+ if ((len = m_File.AppendString(FX_BSTRC("\r\nendstream"))) < 0) {
+ return -1;
+ }
+ m_Offset += len;
+ return 1;
+}
+FX_INT32 CPDF_Creator::WriteIndirectObj(FX_DWORD objnum, const CPDF_Object* pObj)
+{
+ FX_INT32 len = m_File.AppendDWord(objnum);
+ if (len < 0) {
+ return -1;
+ }
+ m_Offset += len;
+ if ((len = m_File.AppendString(FX_BSTRC(" 0 obj\r\n"))) < 0) {
+ return -1;
+ }
+ m_Offset += len;
+ if (pObj->GetType() == PDFOBJ_STREAM) {
+ CPDF_CryptoHandler *pHandler = NULL;
+ pHandler = (pObj == m_pMetadata && !m_bEncryptMetadata) ? NULL : m_pCryptoHandler;
+ if (WriteStream(pObj, objnum, pHandler) < 0) {
+ return -1;
+ }
+ } else {
+ if (WriteDirectObj(objnum, pObj) < 0) {
+ return -1;
+ }
+ }
+ if ((len = m_File.AppendString(FX_BSTRC("\r\nendobj\r\n"))) < 0) {
+ return -1;
+ }
+ m_Offset += len;
+ if (AppendObjectNumberToXRef(objnum) < 0) {
+ return -1;
+ }
+ return 0;
+}
+FX_INT32 CPDF_Creator::WriteIndirectObj(const CPDF_Object* pObj)
+{
+ FX_INT32 iRet = WriteIndirectObjectToStream(pObj);
+ if (iRet < 1) {
+ return iRet;
+ }
+ return WriteIndirectObj(pObj->GetObjNum(), pObj);
+}
+FX_INT32 CPDF_Creator::WriteDirectObj(FX_DWORD objnum, const CPDF_Object* pObj, FX_BOOL bEncrypt)
+{
+ FX_INT32 len = 0;
+ if (pObj == NULL) {
+ if (m_File.AppendString(FX_BSTRC(" null")) < 0) {
+ return -1;
+ }
+ m_Offset += 5;
+ return 1;
+ }
+ switch (pObj->GetType()) {
+ case PDFOBJ_NULL:
+ if (m_File.AppendString(FX_BSTRC(" null")) < 0) {
+ return -1;
+ }
+ m_Offset += 5;
+ break;
+ case PDFOBJ_BOOLEAN:
+ case PDFOBJ_NUMBER:
+ if (m_File.AppendString(FX_BSTRC(" ")) < 0) {
+ return -1;
+ }
+ if ((len = m_File.AppendString(pObj->GetString())) < 0) {
+ return -1;
+ }
+ m_Offset += len + 1;
+ break;
+ case PDFOBJ_STRING: {
+ CFX_ByteString str = pObj->GetString();
+ FX_BOOL bHex = ((CPDF_String*)pObj)->IsHex();
+ if (m_pCryptoHandler == NULL || !bEncrypt) {
+ CFX_ByteString content = PDF_EncodeString(str, bHex);
+ if ((len = m_File.AppendString(content)) < 0) {
+ return -1;
+ }
+ m_Offset += len;
+ break;
+ }
+ CPDF_Encryptor encryptor;
+ encryptor.Initialize(m_pCryptoHandler, objnum, (FX_LPBYTE)(FX_LPCSTR)str, str.GetLength());
+ CFX_ByteString content = PDF_EncodeString(CFX_ByteString((FX_LPCSTR)encryptor.m_pData, encryptor.m_dwSize), bHex);
+ if ((len = m_File.AppendString(content)) < 0) {
+ return -1;
+ }
+ m_Offset += len;
+ break;
+ }
+ case PDFOBJ_STREAM: {
+ CPDF_FlateEncoder encoder;
+ encoder.Initialize((CPDF_Stream*)pObj, m_bCompress);
+ CPDF_Encryptor encryptor;
+ CPDF_CryptoHandler* pHandler = m_pCryptoHandler;
+ encryptor.Initialize(pHandler, objnum, encoder.m_pData, encoder.m_dwSize);
+ if ((FX_DWORD)encoder.m_pDict->GetInteger(FX_BSTRC("Length")) != encryptor.m_dwSize) {
+ encoder.CloneDict();
+ encoder.m_pDict->SetAtInteger(FX_BSTRC("Length"), encryptor.m_dwSize);
+ }
+ if (WriteDirectObj(objnum, encoder.m_pDict) < 0) {
+ return -1;
+ }
+ if ((len = m_File.AppendString(FX_BSTRC("stream\r\n"))) < 0) {
+ return -1;
+ }
+ m_Offset += len;
+ if (m_File.AppendBlock(encryptor.m_pData, encryptor.m_dwSize) < 0) {
+ return -1;
+ }
+ m_Offset += encryptor.m_dwSize;
+ if ((len = m_File.AppendString(FX_BSTRC("\r\nendstream"))) < 0) {
+ return -1;
+ }
+ m_Offset += len;
+ break;
+ }
+ case PDFOBJ_NAME: {
+ if (m_File.AppendString(FX_BSTRC("/")) < 0) {
+ return -1;
+ }
+ CFX_ByteString str = pObj->GetString();
+ if ((len = m_File.AppendString(PDF_NameEncode(str))) < 0) {
+ return -1;
+ }
+ m_Offset += len + 1;
+ break;
+ }
+ case PDFOBJ_REFERENCE: {
+ if (m_File.AppendString(FX_BSTRC(" ")) < 0) {
+ return -1;
+ }
+ CPDF_Reference* p = (CPDF_Reference*)pObj;
+ if ((len = m_File.AppendDWord(p->GetRefObjNum())) < 0) {
+ return -1;
+ }
+ if (m_File.AppendString(FX_BSTRC(" 0 R")) < 0) {
+ return -1;
+ }
+ m_Offset += len + 5;
+ break;
+ }
+ case PDFOBJ_ARRAY: {
+ if (m_File.AppendString(FX_BSTRC("[")) < 0) {
+ return -1;
+ }
+ m_Offset += 1;
+ CPDF_Array* p = (CPDF_Array*)pObj;
+ for (FX_DWORD i = 0; i < p->GetCount(); i ++) {
+ CPDF_Object* pElement = p->GetElement(i);
+ if (pElement->GetObjNum()) {
+ if (m_File.AppendString(FX_BSTRC(" ")) < 0) {
+ return -1;
+ }
+ if ((len = m_File.AppendDWord(pElement->GetObjNum())) < 0) {
+ return -1;
+ }
+ if (m_File.AppendString(FX_BSTRC(" 0 R")) < 0) {
+ return -1;
+ }
+ m_Offset += len + 5;
+ } else {
+ if (WriteDirectObj(objnum, pElement) < 0) {
+ return -1;
+ }
+ }
+ }
+ if (m_File.AppendString(FX_BSTRC("]")) < 0) {
+ return -1;
+ }
+ m_Offset += 1;
+ break;
+ }
+ case PDFOBJ_DICTIONARY: {
+ if (m_pCryptoHandler == NULL || pObj == m_pEncryptDict) {
+ return PDF_CreatorAppendObject(pObj, &m_File, m_Offset);
+ }
+ if (m_File.AppendString(FX_BSTRC("<<")) < 0) {
+ return -1;
+ }
+ m_Offset += 2;
+ CPDF_Dictionary* p = (CPDF_Dictionary*)pObj;
+ FX_BOOL bSignDict = IsSignatureDict(p);
+ FX_POSITION pos = p->GetStartPos();
+ while (pos) {
+ FX_BOOL bSignValue = FALSE;
+ CFX_ByteString key;
+ CPDF_Object* pValue = p->GetNextElement(pos, key);
+ if (m_File.AppendString(FX_BSTRC("/")) < 0) {
+ return -1;
+ }
+ if ((len = m_File.AppendString(PDF_NameEncode(key))) < 0) {
+ return -1;
+ }
+ m_Offset += len + 1;
+ if (bSignDict && key == FX_BSTRC("Contents")) {
+ bSignValue = TRUE;
+ }
+ if (pValue->GetObjNum()) {
+ if (m_File.AppendString(FX_BSTRC(" ")) < 0) {
+ return -1;
+ }
+ if ((len = m_File.AppendDWord(pValue->GetObjNum())) < 0) {
+ return -1;
+ }
+ if (m_File.AppendString(FX_BSTRC(" 0 R ")) < 0) {
+ return -1;
+ }
+ m_Offset += len + 6;
+ } else {
+ if (WriteDirectObj(objnum, pValue, !bSignValue) < 0) {
+ return -1;
+ }
+ }
+ }
+ if (m_File.AppendString(FX_BSTRC(">>")) < 0) {
+ return -1;
+ }
+ m_Offset += 2;
+ break;
+ }
+ }
+ return 1;
+}
+FX_INT32 CPDF_Creator::WriteOldIndirectObject(FX_DWORD objnum)
+{
+ if(m_pParser->m_V5Type[objnum] == 0 || m_pParser->m_V5Type[objnum] == 255) {
+ return 0;
+ }
+ m_ObjectOffset[objnum] = m_Offset;
+ FX_LPVOID valuetemp = NULL;
+ FX_BOOL bExistInMap = m_pDocument->m_IndirectObjs.Lookup((FX_LPVOID)(FX_UINTPTR)objnum, valuetemp);
+ FX_BOOL bObjStm = (m_pParser->m_V5Type[objnum] == 2) && m_pEncryptDict && !m_pXRefStream;
+ if(m_pParser->m_bVersionUpdated || m_bSecurityChanged || bExistInMap || bObjStm) {
+ CPDF_Object* pObj = m_pDocument->GetIndirectObject(objnum);
+ if (pObj == NULL) {
+ m_ObjectOffset[objnum] = 0;
+ m_ObjectSize[objnum] = 0;
+ return 0;
+ }
+ if (WriteIndirectObj(pObj)) {
+ return -1;
+ }
+ if (!bExistInMap) {
+ m_pDocument->ReleaseIndirectObject(objnum);
+ }
+ } else {
+ FX_BYTE* pBuffer;
+ FX_DWORD size;
+ m_pParser->GetIndirectBinary(objnum, pBuffer, size);
+ if (pBuffer == NULL) {
+ return 0;
+ }
+ if (m_pParser->m_V5Type[objnum] == 2) {
+ if (m_pXRefStream) {
+ if (WriteIndirectObjectToStream(objnum, pBuffer, size) < 0) {
+ FX_Free(pBuffer);
+ return -1;
+ }
+ } else {
+ FX_INT32 len = m_File.AppendDWord(objnum);
+ if (len < 0) {
+ return -1;
+ }
+ if (m_File.AppendString(FX_BSTRC(" 0 obj ")) < 0) {
+ return -1;
+ }
+ m_Offset += len + 7;
+ if (m_File.AppendBlock(pBuffer, size) < 0) {
+ return -1;
+ }
+ m_Offset += size;
+ if (m_File.AppendString(FX_BSTRC("\r\nendobj\r\n")) < 0) {
+ return -1;
+ }
+ m_Offset += 10;
+ }
+ } else {
+ if (m_File.AppendBlock(pBuffer, size) < 0) {
+ return -1;
+ }
+ m_Offset += size;
+ if(AppendObjectNumberToXRef(objnum) < 0) {
+ return -1;
+ }
+ }
+ FX_Free(pBuffer);
+ }
+ return 1;
+}
+FX_INT32 CPDF_Creator::WriteOldObjs(IFX_Pause *pPause)
+{
+ FX_DWORD nOldSize = m_pParser->m_CrossRef.GetSize();
+ FX_DWORD objnum = (FX_DWORD)(FX_UINTPTR)m_Pos;
+ for(; objnum < nOldSize; objnum ++) {
+ FX_INT32 iRet = WriteOldIndirectObject(objnum);
+ if (!iRet) {
+ continue;
+ }
+ if (iRet < 0) {
+ return iRet;
+ }
+ m_ObjectSize[objnum] = (FX_DWORD)(m_Offset - m_ObjectOffset[objnum]);
+ if (pPause && pPause->NeedToPauseNow()) {
+ m_Pos = (FX_LPVOID)(FX_UINTPTR)(objnum + 1);
+ return 1;
+ }
+ }
+ return 0;
+}
+FX_INT32 CPDF_Creator::WriteNewObjs(FX_BOOL bIncremental, IFX_Pause *pPause)
+{
+ FX_INT32 iCount = m_NewObjNumArray.GetSize();
+ FX_INT32 index = (FX_INT32)(FX_UINTPTR)m_Pos;
+ while (index < iCount) {
+ FX_DWORD objnum = m_NewObjNumArray.ElementAt(index);
+ CPDF_Object *pObj = NULL;
+ m_pDocument->m_IndirectObjs.Lookup((FX_LPVOID)(FX_UINTPTR)objnum, (FX_LPVOID&)pObj);
+ if (NULL == pObj) {
+ ++index;
+ continue;
+ }
+ m_ObjectOffset[objnum] = m_Offset;
+ if (WriteIndirectObj(pObj)) {
+ return -1;
+ }
+ m_ObjectSize[objnum] = (FX_DWORD)(m_Offset - m_ObjectOffset[objnum]);
+ index++;
+ if (pPause && pPause->NeedToPauseNow()) {
+ m_Pos = (FX_POSITION)(FX_UINTPTR)index;
+ return 1;
+ }
+ }
+ return 0;
+}
+void CPDF_Creator::InitOldObjNumOffsets()
+{
+ if (!m_pParser) {
+ return;
+ }
+ FX_DWORD j = 0;
+ FX_DWORD dwStart = 0;
+ FX_DWORD dwEnd = m_pParser->GetLastObjNum();
+ while (dwStart <= dwEnd) {
+ while (dwStart <= dwEnd && (m_pParser->m_V5Type[dwStart] == 0 || m_pParser->m_V5Type[dwStart] == 255)) {
+ dwStart++;
+ }
+ if (dwStart > dwEnd) {
+ break;
+ }
+ j = dwStart;
+ while (j <= dwEnd && m_pParser->m_V5Type[j] != 0 && m_pParser->m_V5Type[j] != 255) {
+ j++;
+ }
+ m_ObjectOffset.Add(dwStart, j - dwStart);
+ m_ObjectSize.Add(dwStart, j - dwStart);
+ dwStart = j;
+ }
+}
+void CPDF_Creator::InitNewObjNumOffsets()
+{
+ FX_BOOL bIncremental = (m_dwFlags & FPDFCREATE_INCREMENTAL) != 0;
+ FX_BOOL bNoOriginal = (m_dwFlags & FPDFCREATE_NO_ORIGINAL) != 0;
+ FX_DWORD nOldSize = m_pParser ? m_pParser->m_CrossRef.GetSize() : 0;
+ FX_POSITION pos = m_pDocument->m_IndirectObjs.GetStartPosition();
+ while (pos) {
+ size_t key = 0;
+ CPDF_Object* pObj;
+ m_pDocument->m_IndirectObjs.GetNextAssoc(pos, (FX_LPVOID&)key, (FX_LPVOID&)pObj);
+ FX_DWORD objnum = (FX_DWORD)key;
+ if (pObj->GetObjNum() == -1) {
+ continue;
+ }
+ if (bIncremental) {
+ if (!pObj->IsModified()) {
+ continue;
+ }
+ } else {
+ if (objnum < nOldSize && m_pParser->m_V5Type[objnum] != 0) {
+ continue;
+ }
+ }
+ AppendNewObjNum(objnum);
+ }
+ FX_INT32 iCount = m_NewObjNumArray.GetSize();
+ if (iCount == 0) {
+ return;
+ }
+ FX_INT32 i = 0;
+ FX_DWORD dwStartObjNum = 0;
+ FX_BOOL bCrossRefValid = m_pParser && m_pParser->GetLastXRefOffset() > 0;
+ while (i < iCount) {
+ dwStartObjNum = m_NewObjNumArray.ElementAt(i);
+ if ((bIncremental && (bNoOriginal || bCrossRefValid)) || !m_ObjectOffset.GetPtrAt(dwStartObjNum)) {
+ break;
+ }
+ i++;
+ }
+ if (i >= iCount) {
+ return;
+ }
+ FX_DWORD dwLastObjNum = dwStartObjNum;
+ i++;
+ FX_BOOL bNewStart = FALSE;
+ for (; i < iCount; i++) {
+ FX_DWORD dwCurObjNum = m_NewObjNumArray.ElementAt(i);
+ FX_BOOL bExist = (dwCurObjNum < nOldSize && m_ObjectOffset.GetPtrAt(dwCurObjNum) != NULL);
+ if (bExist || dwCurObjNum - dwLastObjNum > 1) {
+ if (!bNewStart) {
+ m_ObjectOffset.Add(dwStartObjNum, dwLastObjNum - dwStartObjNum + 1);
+ m_ObjectSize.Add(dwStartObjNum, dwLastObjNum - dwStartObjNum + 1);
+ }
+ dwStartObjNum = dwCurObjNum;
+ }
+ if (bNewStart) {
+ dwStartObjNum = dwCurObjNum;
+ }
+ bNewStart = bExist;
+ dwLastObjNum = dwCurObjNum;
+ }
+ m_ObjectOffset.Add(dwStartObjNum, dwLastObjNum - dwStartObjNum + 1);
+ m_ObjectSize.Add(dwStartObjNum, dwLastObjNum - dwStartObjNum + 1);
+}
+void CPDF_Creator::AppendNewObjNum(FX_DWORD objbum)
+{
+ FX_INT32 iStart = 0, iFind = 0;
+ FX_INT32 iEnd = m_NewObjNumArray.GetUpperBound();
+ while (iStart <= iEnd) {
+ FX_INT32 iMid = (iStart + iEnd) / 2;
+ FX_DWORD dwMid = m_NewObjNumArray.ElementAt(iMid);
+ if (objbum < dwMid) {
+ iEnd = iMid - 1;
+ } else {
+ if (iMid == iEnd) {
+ iFind = iMid + 1;
+ break;
+ }
+ FX_DWORD dwNext = m_NewObjNumArray.ElementAt(iMid + 1);
+ if (objbum < dwNext) {
+ iFind = iMid + 1;
+ break;
+ }
+ iStart = iMid + 1;
+ }
+ }
+ m_NewObjNumArray.InsertAt(iFind, objbum);
+}
+FX_INT32 CPDF_Creator::WriteDoc_Stage1(IFX_Pause *pPause)
+{
+ FXSYS_assert(m_iStage > -1 || m_iStage < 20);
+ if (m_iStage == 0) {
+ if (m_pParser == NULL) {
+ m_dwFlags &= ~FPDFCREATE_INCREMENTAL;
+ }
+ if (m_bSecurityChanged && (m_dwFlags & FPDFCREATE_NO_ORIGINAL) == 0) {
+ m_dwFlags &= ~FPDFCREATE_INCREMENTAL;
+ }
+ m_pMetadata = m_pDocument->GetRoot()->GetElementValue(FX_BSTRC("Metadata"));
+ if (m_dwFlags & FPDFCREATE_OBJECTSTREAM) {
+ m_pXRefStream = FX_NEW CPDF_XRefStream;
+ m_pXRefStream->Start();
+ if ((m_dwFlags & FPDFCREATE_INCREMENTAL) != 0 && m_pParser) {
+ FX_FILESIZE prev = m_pParser->GetLastXRefOffset();
+ m_pXRefStream->m_PrevOffset = prev;
+ }
+ }
+ m_iStage = 10;
+ }
+ if (m_iStage == 10) {
+ if ((m_dwFlags & FPDFCREATE_INCREMENTAL) == 0) {
+ if (m_File.AppendString(FX_BSTRC("%PDF-1.")) < 0) {
+ return -1;
+ }
+ m_Offset += 7;
+ FX_INT32 version = 7;
+ if (m_FileVersion) {
+ version = m_FileVersion;
+ } else if (m_pParser) {
+ version = m_pParser->GetFileVersion();
+ }
+ FX_INT32 len = m_File.AppendDWord(version % 10);
+ if (len < 0) {
+ return -1;
+ }
+ m_Offset += len;
+ if ((len = m_File.AppendString(FX_BSTRC("\r\n%\xA1\xB3\xC5\xD7\r\n"))) < 0) {
+ return -1;
+ }
+ m_Offset += len;
+ InitOldObjNumOffsets();
+ m_iStage = 20;
+ } else {
+ IFX_FileRead* pSrcFile = m_pParser->GetFileAccess();
+ m_Offset = pSrcFile->GetSize();
+ m_Pos = (FX_LPVOID)(FX_UINTPTR)m_Offset;
+ m_iStage = 15;
+ }
+ }
+ if (m_iStage == 15) {
+ if ((m_dwFlags & FPDFCREATE_NO_ORIGINAL) == 0 && m_Pos) {
+ IFX_FileRead* pSrcFile = m_pParser->GetFileAccess();
+ FX_BYTE buffer[4096];
+ FX_DWORD src_size = (FX_DWORD)(FX_UINTPTR)m_Pos;
+ while (src_size) {
+ FX_DWORD block_size = src_size > 4096 ? 4096 : src_size;
+ if (!pSrcFile->ReadBlock(buffer, m_Offset - src_size, block_size)) {
+ return -1;
+ }
+ if (m_File.AppendBlock(buffer, block_size) < 0) {
+ return -1;
+ }
+ src_size -= block_size;
+ if (pPause && pPause->NeedToPauseNow()) {
+ m_Pos = (FX_LPVOID)(FX_UINTPTR)src_size;
+ return 1;
+ }
+ }
+ }
+ if ((m_dwFlags & FPDFCREATE_NO_ORIGINAL) == 0 && m_pParser->GetLastXRefOffset() == 0) {
+ InitOldObjNumOffsets();
+ FX_DWORD dwEnd = m_pParser->GetLastObjNum();
+ FX_BOOL bObjStm = (m_dwFlags & FPDFCREATE_OBJECTSTREAM) != 0;
+ for (FX_DWORD objnum = 0; objnum <= dwEnd; objnum++) {
+ if (m_pParser->m_V5Type[objnum] == 0 || m_pParser->m_V5Type[objnum] == 255) {
+ continue;
+ }
+ m_ObjectOffset[objnum] = m_pParser->m_CrossRef[objnum];
+ if (bObjStm) {
+ m_pXRefStream->AddObjectNumberToIndexArray(objnum);
+ }
+ }
+ if (bObjStm) {
+ m_pXRefStream->EndXRefStream(this);
+ m_pXRefStream->Start();
+ }
+ }
+ m_iStage = 20;
+ }
+ InitNewObjNumOffsets();
+ return m_iStage;
+}
+FX_INT32 CPDF_Creator::WriteDoc_Stage2(IFX_Pause *pPause)
+{
+ FXSYS_assert(m_iStage >= 20 || m_iStage < 30);
+ if (m_iStage == 20) {
+ if ((m_dwFlags & FPDFCREATE_INCREMENTAL) == 0 && m_pParser) {
+ m_Pos = (FX_LPVOID)(FX_UINTPTR)0;
+ m_iStage = 21;
+ } else {
+ m_iStage = 25;
+ }
+ }
+ if (m_iStage == 21) {
+ FX_INT32 iRet = WriteOldObjs(pPause);
+ if (iRet) {
+ return iRet;
+ }
+ m_iStage = 25;
+ }
+ if (m_iStage == 25) {
+ m_Pos = (FX_LPVOID)(FX_UINTPTR)0;
+ m_iStage = 26;
+ }
+ if (m_iStage == 26) {
+ FX_INT32 iRet = WriteNewObjs((m_dwFlags & FPDFCREATE_INCREMENTAL) != 0, pPause);
+ if (iRet) {
+ return iRet;
+ }
+ m_iStage = 27;
+ }
+ if (m_iStage == 27) {
+ if (NULL != m_pEncryptDict && 0 == m_pEncryptDict->GetObjNum()) {
+ m_dwLastObjNum += 1;
+ FX_FILESIZE saveOffset = m_Offset;
+ if (WriteIndirectObj(m_dwLastObjNum, m_pEncryptDict) < 0) {
+ return -1;
+ }
+ m_ObjectOffset.Add(m_dwLastObjNum, 1);
+ m_ObjectOffset[m_dwLastObjNum] = saveOffset;
+ m_ObjectSize.Add(m_dwLastObjNum, 1);
+ m_ObjectSize[m_dwLastObjNum] = m_Offset - saveOffset;
+ m_dwEnryptObjNum = m_dwLastObjNum;
+ if (m_dwFlags & FPDFCREATE_INCREMENTAL) {
+ m_NewObjNumArray.Add(m_dwLastObjNum);
+ }
+ }
+ m_iStage = 80;
+ }
+ return m_iStage;
+}
+FX_INT32 CPDF_Creator::WriteDoc_Stage3(IFX_Pause *pPause)
+{
+ FXSYS_assert(m_iStage >= 80 || m_iStage < 90);
+ FX_DWORD dwLastObjNum = m_dwLastObjNum;
+ if (m_iStage == 80) {
+ m_XrefStart = m_Offset;
+ if (m_dwFlags & FPDFCREATE_OBJECTSTREAM) {
+ m_pXRefStream->End(this, TRUE);
+ m_XrefStart = m_pXRefStream->m_PrevOffset;
+ m_iStage = 90;
+ } else if ((m_dwFlags & FPDFCREATE_INCREMENTAL) == 0 || !m_pParser->IsXRefStream()) {
+ if ((m_dwFlags & FPDFCREATE_INCREMENTAL) == 0 || m_pParser->GetLastXRefOffset() == 0) {
+ CFX_ByteString str;
+ str = m_ObjectOffset.GetPtrAt(1) ? FX_BSTRC("xref\r\n") : FX_BSTRC("xref\r\n0 1\r\n0000000000 65536 f\r\n");
+ if (m_File.AppendString(str) < 0) {
+ return -1;
+ }
+ m_Pos = (FX_LPVOID)(FX_UINTPTR)1;
+ m_iStage = 81;
+ } else {
+ if (m_File.AppendString(FX_BSTRC("xref\r\n")) < 0) {
+ return -1;
+ }
+ m_Pos = (FX_LPVOID)(FX_UINTPTR)0;
+ m_iStage = 82;
+ }
+ } else {
+ m_iStage = 90;
+ }
+ }
+ if (m_iStage == 81) {
+ CFX_ByteString str;
+ FX_DWORD i = (FX_DWORD)(FX_UINTPTR)m_Pos, j;
+ while (i <= dwLastObjNum) {
+ while (i <= dwLastObjNum && !m_ObjectOffset.GetPtrAt(i)) {
+ i++;
+ }
+ if (i > dwLastObjNum) {
+ break;
+ }
+ j = i;
+ while (j <= dwLastObjNum && m_ObjectOffset.GetPtrAt(j)) {
+ j++;
+ }
+ if (i == 1) {
+ str.Format("0 %d\r\n0000000000 65536 f\r\n", j);
+ } else {
+ str.Format("%d %d\r\n", i, j - i);
+ }
+ if (m_File.AppendBlock((FX_LPCSTR)str, str.GetLength()) < 0) {
+ return -1;
+ }
+ while (i < j) {
+ str.Format("%010d 00000 n\r\n", m_ObjectOffset[i ++]);
+ if (m_File.AppendBlock((FX_LPCSTR)str, str.GetLength()) < 0) {
+ return -1;
+ }
+ }
+ if (i > dwLastObjNum) {
+ break;
+ }
+ if (pPause && pPause->NeedToPauseNow()) {
+ m_Pos = (FX_LPVOID)(FX_UINTPTR)i;
+ return 1;
+ }
+ }
+ m_iStage = 90;
+ }
+ if (m_iStage == 82) {
+ CFX_ByteString str;
+ FX_INT32 iCount = m_NewObjNumArray.GetSize();
+ FX_INT32 i = (FX_INT32)(FX_UINTPTR)m_Pos;
+ while (i < iCount) {
+ FX_INT32 j = i;
+ FX_DWORD objnum = m_NewObjNumArray.ElementAt(i);
+ while (j < iCount) {
+ if (++j == iCount) {
+ break;
+ }
+ FX_DWORD dwCurrent = m_NewObjNumArray.ElementAt(j);
+ if (dwCurrent - objnum > 1) {
+ break;
+ }
+ objnum = dwCurrent;
+ }
+ objnum = m_NewObjNumArray.ElementAt(i);
+ if (objnum == 1) {
+ str.Format("0 %d\r\n0000000000 65536 f\r\n", j - i + 1);
+ } else {
+ str.Format("%d %d\r\n", objnum, j - i);
+ }
+ if (m_File.AppendBlock((FX_LPCSTR)str, str.GetLength()) < 0) {
+ return -1;
+ }
+ while (i < j) {
+ objnum = m_NewObjNumArray.ElementAt(i++);
+ str.Format("%010d 00000 n\r\n", m_ObjectOffset[objnum]);
+ if (m_File.AppendBlock((FX_LPCSTR)str, str.GetLength()) < 0) {
+ return -1;
+ }
+ }
+ if (pPause && (i % 100) == 0 && pPause->NeedToPauseNow()) {
+ m_Pos = (FX_LPVOID)(FX_UINTPTR)i;
+ return 1;
+ }
+ }
+ m_iStage = 90;
+ }
+ return m_iStage;
+}
+static FX_INT32 _OutPutIndex(CFX_FileBufferArchive* pFile, FX_FILESIZE offset)
+{
+ FXSYS_assert(pFile);
+ if (sizeof(offset) > 4) {
+ if (FX_GETBYTEOFFSET32(offset)) {
+ if (pFile->AppendByte(FX_GETBYTEOFFSET56(offset)) < 0) {
+ return -1;
+ }
+ if (pFile->AppendByte(FX_GETBYTEOFFSET48(offset)) < 0) {
+ return -1;
+ }
+ if (pFile->AppendByte(FX_GETBYTEOFFSET40(offset)) < 0) {
+ return -1;
+ }
+ if (pFile->AppendByte(FX_GETBYTEOFFSET32(offset)) < 0) {
+ return -1;
+ }
+ }
+ }
+ if (pFile->AppendByte(FX_GETBYTEOFFSET24(offset)) < 0) {
+ return -1;
+ }
+ if (pFile->AppendByte(FX_GETBYTEOFFSET16(offset)) < 0) {
+ return -1;
+ }
+ if (pFile->AppendByte(FX_GETBYTEOFFSET8(offset)) < 0) {
+ return -1;
+ }
+ if (pFile->AppendByte(FX_GETBYTEOFFSET0(offset)) < 0) {
+ return -1;
+ }
+ if (pFile->AppendByte(0) < 0) {
+ return -1;
+ }
+ return 0;
+}
+FX_INT32 CPDF_Creator::WriteDoc_Stage4(IFX_Pause *pPause)
+{
+ FXSYS_assert(m_iStage >= 90);
+ if ((m_dwFlags & FPDFCREATE_OBJECTSTREAM) == 0) {
+ FX_BOOL bXRefStream = (m_dwFlags & FPDFCREATE_INCREMENTAL) != 0 && m_pParser->IsXRefStream();
+ if (!bXRefStream) {
+ if (m_File.AppendString(FX_BSTRC("trailer\r\n<<")) < 0) {
+ return -1;
+ }
+ } else {
+ if (m_File.AppendDWord(m_pDocument->m_LastObjNum + 1) < 0) {
+ return -1;
+ }
+ if (m_File.AppendString(FX_BSTRC(" 0 obj <<")) < 0) {
+ return -1;
+ }
+ }
+ if (m_pParser) {
+ CPDF_Dictionary* p = m_pParser->m_pTrailer;
+ FX_POSITION pos = p->GetStartPos();
+ while (pos) {
+ CFX_ByteString key;
+ CPDF_Object* pValue = p->GetNextElement(pos, key);
+ if (key == FX_BSTRC("Encrypt") || key == FX_BSTRC("Size") || key == FX_BSTRC("Filter") ||
+ key == FX_BSTRC("Index") || key == FX_BSTRC("Length") || key == FX_BSTRC("Prev") ||
+ key == FX_BSTRC("W") || key == FX_BSTRC("XRefStm") || key == FX_BSTRC("ID")) {
+ continue;
+ }
+ if (m_File.AppendString((FX_BSTRC("/"))) < 0) {
+ return -1;
+ }
+ if (m_File.AppendString(PDF_NameEncode(key)) < 0) {
+ return -1;
+ }
+ if (pValue->GetObjNum()) {
+ if (m_File.AppendString(FX_BSTRC(" ")) < 0) {
+ return -1;
+ }
+ if (m_File.AppendDWord(pValue->GetObjNum()) < 0) {
+ return -1;
+ }
+ if (m_File.AppendString(FX_BSTRC(" 0 R ")) < 0) {
+ return -1;
+ }
+ } else {
+ FX_FILESIZE offset = 0;
+ if (PDF_CreatorAppendObject(pValue, &m_File, offset) < 0) {
+ return -1;
+ }
+ }
+ }
+ } else {
+ if (m_File.AppendString(FX_BSTRC("\r\n/Root ")) < 0) {
+ return -1;
+ }
+ if (m_File.AppendDWord(m_pDocument->m_pRootDict->GetObjNum()) < 0) {
+ return -1;
+ }
+ if (m_File.AppendString(FX_BSTRC(" 0 R\r\n")) < 0) {
+ return -1;
+ }
+ if (m_pDocument->m_pInfoDict) {
+ if (m_File.AppendString(FX_BSTRC("/Info ")) < 0) {
+ return -1;
+ }
+ if (m_File.AppendDWord(m_pDocument->m_pInfoDict->GetObjNum()) < 0) {
+ return -1;
+ }
+ if (m_File.AppendString(FX_BSTRC(" 0 R\r\n")) < 0) {
+ return -1;
+ }
+ }
+ }
+ if (m_pEncryptDict) {
+ if (m_File.AppendString(FX_BSTRC("/Encrypt")) < 0) {
+ return -1;
+ }
+ FX_DWORD dwObjNum = m_pEncryptDict->GetObjNum();
+ if (dwObjNum == 0) {
+ dwObjNum = m_pDocument->GetLastObjNum() + 1;
+ }
+ if (m_File.AppendString(FX_BSTRC(" ")) < 0) {
+ return -1;
+ }
+ if (m_File.AppendDWord(dwObjNum) < 0) {
+ return -1;
+ }
+ if (m_File.AppendString(FX_BSTRC(" 0 R ")) < 0) {
+ return -1;
+ }
+ }
+ if (m_File.AppendString(FX_BSTRC("/Size ")) < 0) {
+ return -1;
+ }
+ if (m_File.AppendDWord(m_dwLastObjNum + (bXRefStream ? 2 : 1)) < 0) {
+ return -1;
+ }
+ if ((m_dwFlags & FPDFCREATE_INCREMENTAL) != 0) {
+ FX_FILESIZE prev = m_pParser->GetLastXRefOffset();
+ if (prev) {
+ if (m_File.AppendString(FX_BSTRC("/Prev ")) < 0) {
+ return -1;
+ }
+ FX_CHAR offset_buf[20];
+ FXSYS_memset32(offset_buf, 0, sizeof(offset_buf));
+ FXSYS_i64toa(prev, offset_buf, 10);
+ if (m_File.AppendBlock(offset_buf, FXSYS_strlen(offset_buf)) < 0) {
+ return -1;
+ }
+ }
+ }
+ if (m_pIDArray) {
+ if (m_File.AppendString((FX_BSTRC("/ID"))) < 0) {
+ return -1;
+ }
+ FX_FILESIZE offset = 0;
+ if (PDF_CreatorAppendObject(m_pIDArray, &m_File, offset) < 0) {
+ return -1;
+ }
+ }
+ if (!bXRefStream) {
+ if (m_File.AppendString(FX_BSTRC(">>")) < 0) {
+ return -1;
+ }
+ } else {
+ if (m_File.AppendString(FX_BSTRC("/W[0 4 1]/Index[")) < 0) {
+ return -1;
+ }
+ if ((m_dwFlags & FPDFCREATE_INCREMENTAL) != 0 && m_pParser && m_pParser->GetLastXRefOffset() == 0) {
+ FX_DWORD i = 0;
+ for (i = 0; i < m_dwLastObjNum; i++) {
+ if (!m_ObjectOffset.GetPtrAt(i)) {
+ continue;
+ }
+ if (m_File.AppendDWord(i) < 0) {
+ return -1;
+ }
+ if (m_File.AppendString(FX_BSTRC(" 1 ")) < 0) {
+ return -1;
+ }
+ }
+ if (m_File.AppendString(FX_BSTRC("]/Length ")) < 0) {
+ return -1;
+ }
+ if (m_File.AppendDWord(m_dwLastObjNum * 5) < 0) {
+ return -1;
+ }
+ if (m_File.AppendString(FX_BSTRC(">>stream\r\n")) < 0) {
+ return -1;
+ }
+ for (i = 0; i < m_dwLastObjNum; i++) {
+ FX_FILESIZE* offset = m_ObjectOffset.GetPtrAt(i);
+ if (!offset) {
+ continue;
+ }
+ _OutPutIndex(&m_File, *offset);
+ }
+ } else {
+ int count = m_NewObjNumArray.GetSize();
+ FX_INT32 i = 0;
+ for (i = 0; i < count; i++) {
+ FX_DWORD objnum = m_NewObjNumArray.ElementAt(i);
+ if (m_File.AppendDWord(objnum) < 0) {
+ return -1;
+ }
+ if (m_File.AppendString(FX_BSTRC(" 1 ")) < 0) {
+ return -1;
+ }
+ }
+ if (m_File.AppendString(FX_BSTRC("]/Length ")) < 0) {
+ return -1;
+ }
+ if (m_File.AppendDWord(count * 5) < 0) {
+ return -1;
+ }
+ if (m_File.AppendString(FX_BSTRC(">>stream\r\n")) < 0) {
+ return -1;
+ }
+ for (i = 0; i < count; i++) {
+ FX_DWORD objnum = m_NewObjNumArray.ElementAt(i);
+ FX_FILESIZE offset = m_ObjectOffset[objnum];
+ _OutPutIndex(&m_File, offset);
+ }
+ }
+ if (m_File.AppendString(FX_BSTRC("\r\nendstream")) < 0) {
+ return -1;
+ }
+ }
+ }
+ if (m_File.AppendString(FX_BSTRC("\r\nstartxref\r\n")) < 0) {
+ return -1;
+ }
+ FX_CHAR offset_buf[20];
+ FXSYS_memset32(offset_buf, 0, sizeof(offset_buf));
+ FXSYS_i64toa(m_XrefStart, offset_buf, 10);
+ if (m_File.AppendBlock(offset_buf, FXSYS_strlen(offset_buf)) < 0) {
+ return -1;
+ }
+ if (m_File.AppendString(FX_BSTRC("\r\n%%EOF\r\n")) < 0) {
+ return -1;
+ }
+ m_File.Flush();
+ return m_iStage = 100;
+}
+void CPDF_Creator::Clear()
+{
+ if (m_pXRefStream) {
+ delete m_pXRefStream;
+ m_pXRefStream = NULL;
+ }
+ m_File.Clear();
+ m_NewObjNumArray.RemoveAll();
+ if (m_pIDArray) {
+ m_pIDArray->Release();
+ m_pIDArray = NULL;
+ }
+}
+FX_BOOL CPDF_Creator::Create(FX_LPCSTR filename, FX_DWORD flags)
+{
+ if (!m_File.AttachFile(filename)) {
+ return FALSE;
+ }
+ FX_BOOL bRet = Create(flags);
+ if (!bRet || !(flags & FPDFCREATE_PROGRESSIVE)) {
+ Clear();
+ }
+ return bRet;
+}
+FX_BOOL CPDF_Creator::Create(FX_LPCWSTR filename, FX_DWORD flags)
+{
+ if (!m_File.AttachFile(filename)) {
+ return FALSE;
+ }
+ FX_BOOL bRet = Create(flags);
+ if (!bRet || !(flags & FPDFCREATE_PROGRESSIVE)) {
+ Clear();
+ }
+ return bRet;
+}
+FX_BOOL CPDF_Creator::Create(IFX_StreamWrite* pFile, FX_DWORD flags)
+{
+ if (!pFile) {
+ return FALSE;
+ }
+ if (!m_File.AttachFile(pFile, FALSE)) {
+ return FALSE;
+ }
+ return Create(flags);
+}
+FX_BOOL CPDF_Creator::Create(FX_DWORD flags)
+{
+ m_dwFlags = flags;
+ m_iStage = 0;
+ m_Offset = 0;
+ m_dwLastObjNum = m_pDocument->GetLastObjNum();
+ m_ObjectOffset.Clear();
+ m_ObjectSize.Clear();
+ m_NewObjNumArray.RemoveAll();
+ InitID();
+ if (flags & FPDFCREATE_PROGRESSIVE) {
+ return TRUE;
+ }
+ return Continue(NULL) > -1;
+}
+void CPDF_Creator::InitID(FX_BOOL bDefault )
+{
+ CPDF_Array* pOldIDArray = m_pParser ? m_pParser->GetIDArray() : NULL;
+ FX_BOOL bNewId = !m_pIDArray;
+ if (!m_pIDArray) {
+ FX_LPDWORD pBuffer = NULL;
+ m_pIDArray = CPDF_Array::Create();
+ CPDF_Object* pID1 = pOldIDArray->GetElement(0);
+ if (pID1) {
+ m_pIDArray->Add(pID1->Clone());
+ } else {
+ pBuffer = FX_Alloc(FX_DWORD, 4);
+ PDF_GenerateFileID((FX_DWORD)(FX_UINTPTR)this, m_dwLastObjNum, pBuffer);
+ CFX_ByteStringC bsBuffer((FX_LPCBYTE)pBuffer, 4 * sizeof(FX_DWORD));
+ m_pIDArray->Add(CPDF_String::Create(bsBuffer, TRUE), m_pDocument);
+ }
+ if (pBuffer) {
+ FX_Free(pBuffer);
+ }
+ }
+ if (!bDefault) {
+ return;
+ }
+ if (pOldIDArray) {
+ CPDF_Object* pID2 = pOldIDArray->GetElement(1);
+ if ((m_dwFlags & FPDFCREATE_INCREMENTAL) && m_pEncryptDict && pID2) {
+ m_pIDArray->Add(pID2->Clone());
+ return;
+ }
+ FX_LPDWORD pBuffer = FX_Alloc(FX_DWORD, 4);
+ PDF_GenerateFileID((FX_DWORD)(FX_UINTPTR)this, m_dwLastObjNum, pBuffer);
+ CFX_ByteStringC bsBuffer((FX_LPCBYTE)pBuffer, 4 * sizeof(FX_DWORD));
+ m_pIDArray->Add(CPDF_String::Create(bsBuffer, TRUE), m_pDocument);
+ FX_Free(pBuffer);
+ return;
+ }
+ m_pIDArray->Add(m_pIDArray->GetElement(0)->Clone());
+ if (m_pEncryptDict && !pOldIDArray && m_pParser && bNewId) {
+ if (m_pEncryptDict->GetString(FX_BSTRC("Filter")) == FX_BSTRC("Standard")) {
+ CPDF_StandardSecurityHandler handler;
+ CFX_ByteString user_pass = m_pParser->GetPassword();
+ FX_DWORD flag = PDF_ENCRYPT_CONTENT;
+ handler.OnCreate(m_pEncryptDict, m_pIDArray, (FX_LPCBYTE)user_pass, user_pass.GetLength(), flag);
+ if (m_pCryptoHandler && m_bNewCrypto) {
+ delete m_pCryptoHandler;
+ }
+ m_pCryptoHandler = FX_NEW CPDF_StandardCryptoHandler;
+ m_pCryptoHandler->Init(m_pEncryptDict, &handler);
+ m_bNewCrypto = TRUE;
+ m_bSecurityChanged = TRUE;
+ }
+ }
+}
+FX_INT32 CPDF_Creator::Continue(IFX_Pause *pPause)
+{
+ if (m_iStage < 0) {
+ return m_iStage;
+ }
+ FX_INT32 iRet;
+ while (m_iStage < 100) {
+ if (m_iStage < 20) {
+ iRet = WriteDoc_Stage1(pPause);
+ } else if (m_iStage < 30) {
+ iRet = WriteDoc_Stage2(pPause);
+ } else if (m_iStage < 90) {
+ iRet = WriteDoc_Stage3(pPause);
+ } else {
+ iRet = WriteDoc_Stage4(pPause);
+ }
+ if (iRet < m_iStage) {
+ break;
+ }
+ }
+ if (iRet < 1 || m_iStage == 100) {
+ m_iStage = -1;
+ Clear();
+ return iRet > 99 ? 0 : (iRet < 1 ? -1 : iRet);
+ }
+ return m_iStage;
+}
+FX_BOOL CPDF_Creator::SetFileVersion(FX_INT32 fileVersion )
+{
+ if (fileVersion < 10 || fileVersion > 17) {
+ return FALSE;
+ }
+ m_FileVersion = fileVersion;
+ return TRUE;
+}
+void CPDF_Creator::ResetStandardSecurity()
+{
+ if ((m_bStandardSecurity || m_bNewCrypto) && m_pCryptoHandler) {
+ delete m_pCryptoHandler;
+ m_pCryptoHandler = NULL;
+ }
+ m_bNewCrypto = FALSE;
+ if (!m_bStandardSecurity) {
+ return;
+ }
+ if (m_pEncryptDict) {
+ m_pEncryptDict->Release();
+ m_pEncryptDict = NULL;
+ }
+ m_bStandardSecurity = FALSE;
+}
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