1 // Copyright 2014 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
7 #include "../../../include/fpdfapi/fpdf_serial.h"
9 #define PDF_OBJECTSTREAM_MAXLENGTH (256 * 1024)
10 #define PDF_XREFSTREAM_MAXSIZE 10000
11 extern void FlateEncode(const FX_BYTE* src_buf, FX_DWORD src_data, FX_LPBYTE& dest_buf, FX_DWORD& dest_size);
12 extern void FlateEncode(FX_LPCBYTE src_buf, FX_DWORD src_size, int predictor, int Colors, int BitsPerComponent, int Columns,
13 FX_LPBYTE& dest_buf, FX_DWORD& dest_size);
14 extern FX_BOOL IsSignatureDict(const CPDF_Dictionary* pDict);
15 FX_INT32 PDF_CreatorAppendObject(const CPDF_Object* pObj, CFX_FileBufferArchive *pFile, FX_FILESIZE& offset)
19 if (pFile->AppendString(FX_BSTRC(" null")) < 0) {
25 switch (pObj->GetType()) {
27 if (pFile->AppendString(FX_BSTRC(" null")) < 0) {
34 if (pFile->AppendString(FX_BSTRC(" ")) < 0) {
37 if ((len = pFile->AppendString(pObj->GetString())) < 0) {
43 CFX_ByteString str = pObj->GetString();
44 FX_BOOL bHex = ((CPDF_String*)pObj)->IsHex();
45 if ((len = pFile->AppendString(PDF_EncodeString(str, bHex))) < 0) {
52 if (pFile->AppendString(FX_BSTRC("/")) < 0) {
55 CFX_ByteString str = pObj->GetString();
56 if ((len = pFile->AppendString(PDF_NameEncode(str))) < 0) {
62 case PDFOBJ_REFERENCE: {
63 if (pFile->AppendString(FX_BSTRC(" ")) < 0) {
66 CPDF_Reference* p = (CPDF_Reference*)pObj;
67 if ((len = pFile->AppendDWord(p->GetRefObjNum())) < 0) {
70 if (pFile->AppendString(FX_BSTRC(" 0 R ")) < 0) {
77 if (pFile->AppendString(FX_BSTRC("[")) < 0) {
81 CPDF_Array* p = (CPDF_Array*)pObj;
82 for (FX_DWORD i = 0; i < p->GetCount(); i ++) {
83 CPDF_Object* pElement = p->GetElement(i);
84 if (pElement->GetObjNum()) {
85 if (pFile->AppendString(FX_BSTRC(" ")) < 0) {
88 if ((len = pFile->AppendDWord(pElement->GetObjNum())) < 0) {
91 if (pFile->AppendString(FX_BSTRC(" 0 R")) < 0) {
96 if (PDF_CreatorAppendObject(pElement, pFile, offset) < 0) {
101 if (pFile->AppendString(FX_BSTRC("]")) < 0) {
107 case PDFOBJ_DICTIONARY: {
108 if (pFile->AppendString(FX_BSTRC("<<")) < 0) {
112 CPDF_Dictionary* p = (CPDF_Dictionary*)pObj;
113 FX_POSITION pos = p->GetStartPos();
116 CPDF_Object* pValue = p->GetNextElement(pos, key);
117 if (pFile->AppendString(FX_BSTRC("/")) < 0) {
120 if ((len = pFile->AppendString(PDF_NameEncode(key))) < 0) {
124 if (pValue->GetObjNum()) {
125 if (pFile->AppendString(FX_BSTRC(" ")) < 0) {
128 if ((len = pFile->AppendDWord(pValue->GetObjNum())) < 0) {
131 if (pFile->AppendString(FX_BSTRC(" 0 R")) < 0) {
136 if (PDF_CreatorAppendObject(pValue, pFile, offset) < 0) {
141 if (pFile->AppendString(FX_BSTRC(">>")) < 0) {
147 case PDFOBJ_STREAM: {
148 CPDF_Stream* p = (CPDF_Stream*)pObj;
149 if (PDF_CreatorAppendObject(p->GetDict(), pFile, offset) < 0) {
152 if (pFile->AppendString(FX_BSTRC("stream\r\n")) < 0) {
157 acc.LoadAllData(p, TRUE);
158 if (pFile->AppendBlock(acc.GetData(), acc.GetSize()) < 0) {
161 offset += acc.GetSize();
162 if ((len = pFile->AppendString(FX_BSTRC("\r\nendstream"))) < 0) {
174 FX_INT32 PDF_CreatorWriteTrailer(CPDF_Document* pDocument, CFX_FileBufferArchive* pFile, CPDF_Array* pIDArray, FX_BOOL bCompress)
176 FX_FILESIZE offset = 0;
178 FXSYS_assert(pDocument && pFile);
179 CPDF_Parser *pParser = (CPDF_Parser*)pDocument->GetParser();
181 CPDF_Dictionary* p = pParser->GetTrailer();
182 FX_POSITION pos = p->GetStartPos();
185 CPDF_Object* pValue = p->GetNextElement(pos, key);
186 if (key == FX_BSTRC("Encrypt") || key == FX_BSTRC("Size") || key == FX_BSTRC("Filter") ||
187 key == FX_BSTRC("Index") || key == FX_BSTRC("Length") || key == FX_BSTRC("Prev") ||
188 key == FX_BSTRC("W") || key == FX_BSTRC("XRefStm") || key == FX_BSTRC("Type") || key == FX_BSTRC("ID")) {
191 if (bCompress && key == FX_BSTRC("DecodeParms")) {
194 if (pFile->AppendString((FX_BSTRC("/"))) < 0) {
197 if ((len = pFile->AppendString(PDF_NameEncode(key))) < 0) {
201 if (pValue->GetObjNum()) {
202 if (pFile->AppendString(FX_BSTRC(" ")) < 0) {
205 if ((len = pFile->AppendDWord(pValue->GetObjNum())) < 0) {
208 if (pFile->AppendString(FX_BSTRC(" 0 R ")) < 0) {
213 if (PDF_CreatorAppendObject(pValue, pFile, offset) < 0) {
219 if (pFile->AppendString((FX_BSTRC("/ID"))) < 0) {
223 if (PDF_CreatorAppendObject(pIDArray, pFile, offset) < 0) {
229 if (pFile->AppendString(FX_BSTRC("\r\n/Root ")) < 0) {
232 if ((len = pFile->AppendDWord(pDocument->GetRoot()->GetObjNum())) < 0) {
235 if (pFile->AppendString(FX_BSTRC(" 0 R\r\n")) < 0) {
239 if (pDocument->GetInfo()) {
240 if (pFile->AppendString(FX_BSTRC("/Info ")) < 0) {
243 if ((len = pFile->AppendDWord(pDocument->GetInfo()->GetObjNum())) < 0) {
246 if (pFile->AppendString(FX_BSTRC(" 0 R\r\n")) < 0) {
252 if (pFile->AppendString((FX_BSTRC("/ID"))) < 0) {
256 if (PDF_CreatorAppendObject(pIDArray, pFile, offset) < 0) {
262 FX_INT32 PDF_CreatorWriteEncrypt(const CPDF_Dictionary* pEncryptDict, FX_DWORD dwObjNum, CFX_FileBufferArchive *pFile)
268 FX_FILESIZE offset = 0;
270 if (pFile->AppendString(FX_BSTRC("/Encrypt")) < 0) {
274 if (pFile->AppendString(FX_BSTRC(" ")) < 0) {
277 if ((len = pFile->AppendDWord(dwObjNum)) < 0) {
280 if (pFile->AppendString(FX_BSTRC(" 0 R ")) < 0) {
286 FX_BOOL PDF_GenerateFileID(FX_DWORD dwSeed1, FX_DWORD dwSeed2, FX_LPDWORD pBuffer)
291 FX_LPVOID pContext = FX_Random_MT_Start(dwSeed1);
293 for (i = 0; i < 2; i++) {
294 *pBuffer++ = FX_Random_MT_Generate(pContext);
296 FX_Random_MT_Close(pContext);
297 pContext = FX_Random_MT_Start(dwSeed2);
298 for (i = 0; i < 2; i++) {
299 *pBuffer++ = FX_Random_MT_Generate(pContext);
301 FX_Random_MT_Close(pContext);
304 class CPDF_FlateEncoder
308 ~CPDF_FlateEncoder();
309 FX_BOOL Initialize(CPDF_Stream* pStream, FX_BOOL bFlateEncode);
310 FX_BOOL Initialize(FX_LPCBYTE pBuffer, FX_DWORD size, FX_BOOL bFlateEncode, FX_BOOL bXRefStream = FALSE);
314 CPDF_Dictionary* m_pDict;
317 CPDF_StreamAcc m_Acc;
319 CPDF_FlateEncoder::CPDF_FlateEncoder()
327 void CPDF_FlateEncoder::CloneDict()
330 m_pDict = (CPDF_Dictionary*)m_pDict->Clone();
334 FX_BOOL CPDF_FlateEncoder::Initialize(CPDF_Stream* pStream, FX_BOOL bFlateEncode)
336 m_Acc.LoadAllData(pStream, TRUE);
337 if ((pStream && pStream->GetDict() && pStream->GetDict()->KeyExist("Filter")) || !bFlateEncode) {
338 if (pStream->GetDict()->KeyExist("Filter") && !bFlateEncode) {
339 CPDF_StreamAcc destAcc;
340 destAcc.LoadAllData(pStream);
341 m_dwSize = destAcc.GetSize();
342 m_pData = (FX_LPBYTE)destAcc.DetachData();
343 m_pDict = (CPDF_Dictionary*)pStream->GetDict()->Clone();
344 m_pDict->RemoveAt(FX_BSTRC("Filter"));
348 m_pData = (FX_LPBYTE)m_Acc.GetData();
349 m_dwSize = m_Acc.GetSize();
350 m_pDict = pStream->GetDict();
358 ::FlateEncode(m_Acc.GetData(), m_Acc.GetSize(), m_pData, m_dwSize);
359 m_pDict = (CPDF_Dictionary*)pStream->GetDict()->Clone();
360 m_pDict->SetAtInteger("Length", m_dwSize);
361 m_pDict->SetAtName("Filter", "FlateDecode");
362 m_pDict->RemoveAt("DecodeParms");
365 FX_BOOL CPDF_FlateEncoder::Initialize(FX_LPCBYTE pBuffer, FX_DWORD size, FX_BOOL bFlateEncode, FX_BOOL bXRefStream)
368 m_pData = (FX_LPBYTE)pBuffer;
374 ::FlateEncode(pBuffer, size, 12, 1, 8, 7, m_pData, m_dwSize);
376 ::FlateEncode(pBuffer, size, m_pData, m_dwSize);
380 CPDF_FlateEncoder::~CPDF_FlateEncoder()
382 if (m_bCloned && m_pDict) {
385 if (m_bNewData && m_pData) {
394 FX_BOOL Initialize(CPDF_CryptoHandler* pHandler, int objnum, FX_LPBYTE src_data, FX_DWORD src_size);
399 CPDF_Encryptor::CPDF_Encryptor()
405 FX_BOOL CPDF_Encryptor::Initialize(CPDF_CryptoHandler* pHandler, int objnum, FX_LPBYTE src_data, FX_DWORD src_size)
410 if (pHandler == NULL) {
411 m_pData = (FX_LPBYTE)src_data;
416 m_dwSize = pHandler->EncryptGetSize(objnum, 0, src_data, src_size);
417 m_pData = FX_Alloc(FX_BYTE, m_dwSize);
421 pHandler->EncryptContent(objnum, 0, src_data, src_size, m_pData, m_dwSize);
425 CPDF_Encryptor::~CPDF_Encryptor()
431 CPDF_ObjectStream::CPDF_ObjectStream()
436 FX_BOOL CPDF_ObjectStream::Start()
438 m_ObjNumArray.RemoveAll();
439 m_OffsetArray.RemoveAll();
445 FX_INT32 CPDF_ObjectStream::CompressIndirectObject(FX_DWORD dwObjNum, const CPDF_Object *pObj)
447 m_ObjNumArray.Add(dwObjNum);
448 m_OffsetArray.Add(m_Buffer.GetLength());
452 FX_INT32 CPDF_ObjectStream::CompressIndirectObject(FX_DWORD dwObjNum, FX_LPCBYTE pBuffer, FX_DWORD dwSize)
454 m_ObjNumArray.Add(dwObjNum);
455 m_OffsetArray.Add(m_Buffer.GetLength());
456 m_Buffer.AppendBlock(pBuffer, dwSize);
459 FX_FILESIZE CPDF_ObjectStream::End(CPDF_Creator* pCreator)
461 FXSYS_assert(pCreator);
462 if (m_ObjNumArray.GetSize() == 0) {
465 CFX_FileBufferArchive *pFile = &pCreator->m_File;
466 CPDF_CryptoHandler *pHandler = pCreator->m_pCryptoHandler;
467 FX_FILESIZE ObjOffset = pCreator->m_Offset;
469 m_dwObjNum = ++pCreator->m_dwLastObjNum;
471 CFX_ByteTextBuf tempBuffer;
472 FX_INT32 iCount = m_ObjNumArray.GetSize();
473 for (FX_INT32 i = 0; i < iCount; i++) {
474 tempBuffer << m_ObjNumArray.ElementAt(i) << FX_BSTRC(" ") << m_OffsetArray.ElementAt(i) << FX_BSTRC(" ");
476 FX_FILESIZE &offset = pCreator->m_Offset;
477 FX_INT32 len = pFile->AppendDWord(m_dwObjNum);
482 if ((len = pFile->AppendString(FX_BSTRC(" 0 obj\r\n<</Type /ObjStm /N "))) < 0) {
486 if ((len = pFile->AppendDWord((FX_DWORD)iCount)) < 0) {
490 if (pFile->AppendString(FX_BSTRC("/First ")) < 0) {
493 if ((len = pFile->AppendDWord((FX_DWORD)tempBuffer.GetLength())) < 0) {
496 if (pFile->AppendString(FX_BSTRC("/Length ")) < 0) {
500 if (!pCreator->m_bCompress && !pHandler) {
501 if ((len = pFile->AppendDWord((FX_DWORD)(tempBuffer.GetLength() + m_Buffer.GetLength()))) < 0) {
505 if ((len = pFile->AppendString(FX_BSTRC(">>stream\r\n"))) < 0) {
508 if (pFile->AppendBlock(tempBuffer.GetBuffer(), tempBuffer.GetLength()) < 0) {
511 if (pFile->AppendBlock(m_Buffer.GetBuffer(), m_Buffer.GetLength()) < 0) {
514 offset += len + tempBuffer.GetLength() + m_Buffer.GetLength();
516 tempBuffer << m_Buffer;
517 CPDF_FlateEncoder encoder;
518 encoder.Initialize(tempBuffer.GetBuffer(), tempBuffer.GetLength(), pCreator->m_bCompress);
519 CPDF_Encryptor encryptor;
520 encryptor.Initialize(pHandler, m_dwObjNum, encoder.m_pData, encoder.m_dwSize);
521 if ((len = pFile->AppendDWord(encryptor.m_dwSize)) < 0) {
525 if (pCreator->m_bCompress) {
526 if (pFile->AppendString(FX_BSTRC("/Filter /FlateDecode")) < 0) {
531 if ((len = pFile->AppendString(FX_BSTRC(">>stream\r\n"))) < 0) {
534 if (pFile->AppendBlock(encryptor.m_pData, encryptor.m_dwSize) < 0) {
537 offset += len + encryptor.m_dwSize;
539 if ((len = pFile->AppendString(FX_BSTRC("\r\nendstream\r\nendobj\r\n"))) < 0) {
545 CPDF_XRefStream::CPDF_XRefStream()
551 FX_BOOL CPDF_XRefStream::Start()
553 m_IndexArray.RemoveAll();
558 FX_INT32 CPDF_XRefStream::CompressIndirectObject(FX_DWORD dwObjNum, const CPDF_Object *pObj, CPDF_Creator *pCreator)
563 m_ObjStream.CompressIndirectObject(dwObjNum, pObj);
564 if (m_ObjStream.m_ObjNumArray.GetSize() < pCreator->m_ObjectStreamSize &&
565 m_ObjStream.m_Buffer.GetLength() < PDF_OBJECTSTREAM_MAXLENGTH) {
568 return EndObjectStream(pCreator);
570 FX_INT32 CPDF_XRefStream::CompressIndirectObject(FX_DWORD dwObjNum, FX_LPCBYTE pBuffer, FX_DWORD dwSize, CPDF_Creator *pCreator)
575 m_ObjStream.CompressIndirectObject(dwObjNum, pBuffer, dwSize);
576 if (m_ObjStream.m_ObjNumArray.GetSize() < pCreator->m_ObjectStreamSize &&
577 m_ObjStream.m_Buffer.GetLength() < PDF_OBJECTSTREAM_MAXLENGTH) {
580 return EndObjectStream(pCreator);
582 static void _AppendIndex0(CFX_ByteTextBuf& buffer, FX_BOOL bFirstObject = TRUE)
584 buffer.AppendByte(0);
585 buffer.AppendByte(0);
586 buffer.AppendByte(0);
587 buffer.AppendByte(0);
588 buffer.AppendByte(0);
590 buffer.AppendByte(0xFF);
591 buffer.AppendByte(0xFF);
593 buffer.AppendByte(0);
594 buffer.AppendByte(0);
597 static void _AppendIndex1(CFX_ByteTextBuf& buffer, FX_FILESIZE offset)
599 buffer.AppendByte(1);
600 buffer.AppendByte(FX_GETBYTEOFFSET24(offset));
601 buffer.AppendByte(FX_GETBYTEOFFSET16(offset));
602 buffer.AppendByte(FX_GETBYTEOFFSET8(offset));
603 buffer.AppendByte(FX_GETBYTEOFFSET0(offset));
604 buffer.AppendByte(0);
605 buffer.AppendByte(0);
607 static void _AppendIndex2(CFX_ByteTextBuf& buffer, FX_DWORD objnum, FX_INT32 index)
609 buffer.AppendByte(2);
610 buffer.AppendByte(FX_GETBYTEOFFSET24(objnum));
611 buffer.AppendByte(FX_GETBYTEOFFSET16(objnum));
612 buffer.AppendByte(FX_GETBYTEOFFSET8(objnum));
613 buffer.AppendByte(FX_GETBYTEOFFSET0(objnum));
614 buffer.AppendByte(FX_GETBYTEOFFSET8(index));
615 buffer.AppendByte(FX_GETBYTEOFFSET0(index));
617 FX_INT32 CPDF_XRefStream::EndObjectStream(CPDF_Creator *pCreator, FX_BOOL bEOF)
619 FX_FILESIZE objOffset = 0;
621 objOffset = m_ObjStream.End(pCreator);
626 FX_DWORD &dwObjStmNum = m_ObjStream.m_dwObjNum;
628 dwObjStmNum = ++pCreator->m_dwLastObjNum;
630 FX_INT32 iSize = m_ObjStream.m_ObjNumArray.GetSize();
631 FX_INT32 iSeg = m_IndexArray.GetSize() / 2;
632 if (!(pCreator->m_dwFlags & FPDFCREATE_INCREMENTAL)) {
633 if (m_dwTempObjNum == 0) {
634 _AppendIndex0(m_Buffer);
637 FX_DWORD end_num = m_IndexArray.GetAt((iSeg - 1) * 2) + m_IndexArray.GetAt((iSeg - 1) * 2 + 1);
639 for (; m_dwTempObjNum < end_num; m_dwTempObjNum++) {
640 FX_FILESIZE* offset = pCreator->m_ObjectOffset.GetPtrAt(m_dwTempObjNum);
642 if (index >= iSize || m_dwTempObjNum != m_ObjStream.m_ObjNumArray[index]) {
643 _AppendIndex1(m_Buffer, *offset);
645 _AppendIndex2(m_Buffer, dwObjStmNum, index++);
648 _AppendIndex0(m_Buffer, FALSE);
651 if (iSize > 0 && bEOF) {
652 pCreator->m_ObjectOffset.Add(dwObjStmNum, 1);
653 pCreator->m_ObjectSize.Add(dwObjStmNum, 1);
654 pCreator->m_ObjectOffset[dwObjStmNum] = objOffset;
662 FX_INT32 &j = m_ObjStream.m_index;
663 for (int i = m_iSeg; i < iSeg; i++) {
664 FX_DWORD start = m_IndexArray.ElementAt(i * 2);
665 FX_DWORD end = m_IndexArray.ElementAt(i * 2 + 1) + start;
666 for (FX_DWORD m = start; m < end; m++) {
667 if (j >= iSize || m != m_ObjStream.m_ObjNumArray.ElementAt(j)) {
668 _AppendIndex1(m_Buffer, pCreator->m_ObjectOffset[m]);
670 _AppendIndex2(m_Buffer, dwObjStmNum, j++);
674 if (iSize > 0 && bEOF) {
675 _AppendIndex1(m_Buffer, objOffset);
676 m_IndexArray.Add(dwObjStmNum);
686 FX_BOOL CPDF_XRefStream::GenerateXRefStream(CPDF_Creator* pCreator, FX_BOOL bEOF)
688 FX_FILESIZE offset_tmp = pCreator->m_Offset;
689 FX_DWORD objnum = ++pCreator->m_dwLastObjNum;
690 CFX_FileBufferArchive *pFile = &pCreator->m_File;
691 FX_BOOL bIncremental = (pCreator->m_dwFlags & FPDFCREATE_INCREMENTAL) != 0;
693 AddObjectNumberToIndexArray(objnum);
695 for (; m_dwTempObjNum < pCreator->m_dwLastObjNum; m_dwTempObjNum++) {
696 FX_FILESIZE* offset = pCreator->m_ObjectOffset.GetPtrAt(m_dwTempObjNum);
698 _AppendIndex1(m_Buffer, *offset);
700 _AppendIndex0(m_Buffer, FALSE);
704 _AppendIndex1(m_Buffer, offset_tmp);
705 FX_FILESIZE &offset = pCreator->m_Offset;
706 FX_INT32 len = pFile->AppendDWord(objnum);
711 if ((len = pFile->AppendString(FX_BSTRC(" 0 obj\r\n<</Type /XRef/W[1 4 2]/Index["))) < 0) {
716 if ((len = pFile->AppendDWord(0)) < 0) {
719 if ((len = pFile->AppendString(FX_BSTRC(" "))) < 0) {
723 if ((len = pFile->AppendDWord(objnum + 1)) < 0) {
728 FX_INT32 iSeg = m_IndexArray.GetSize() / 2;
729 for (FX_INT32 i = 0; i < iSeg; i++) {
730 if ((len = pFile->AppendDWord(m_IndexArray.ElementAt(i * 2))) < 0) {
733 if (pFile->AppendString(FX_BSTRC(" ")) < 0) {
737 if ((len = pFile->AppendDWord(m_IndexArray.ElementAt(i * 2 + 1))) < 0) {
740 if (pFile->AppendString(FX_BSTRC(" ")) < 0) {
746 if (pFile->AppendString(FX_BSTRC("]/Size ")) < 0) {
749 if ((len = pFile->AppendDWord(objnum + 1)) < 0) {
753 if (m_PrevOffset > 0) {
754 if (pFile->AppendString(FX_BSTRC("/Prev ")) < 0) {
757 FX_CHAR offset_buf[20];
758 FXSYS_memset32(offset_buf, 0, sizeof(offset_buf));
759 FXSYS_i64toa(m_PrevOffset, offset_buf, 10);
760 FX_INT32 len = (FX_INT32)FXSYS_strlen(offset_buf);
761 if (pFile->AppendBlock(offset_buf, len) < 0) {
766 FX_BOOL bPredictor = TRUE;
767 CPDF_FlateEncoder encoder;
768 encoder.Initialize(m_Buffer.GetBuffer(), m_Buffer.GetLength(), pCreator->m_bCompress, bPredictor);
769 if (pCreator->m_bCompress) {
770 if (pFile->AppendString(FX_BSTRC("/Filter /FlateDecode")) < 0) {
775 if ((len = pFile->AppendString(FX_BSTRC("/DecodeParms<</Columns 7/Predictor 12>>"))) < 0) {
781 if (pFile->AppendString(FX_BSTRC("/Length ")) < 0) {
784 if ((len = pFile->AppendDWord(encoder.m_dwSize)) < 0) {
789 if ((len = PDF_CreatorWriteTrailer(pCreator->m_pDocument, pFile, pCreator->m_pIDArray, pCreator->m_bCompress)) < 0) {
793 if (pCreator->m_pEncryptDict) {
794 FX_DWORD dwEncryptObjNum = pCreator->m_pEncryptDict->GetObjNum();
795 if (dwEncryptObjNum == 0) {
796 dwEncryptObjNum = pCreator->m_dwEnryptObjNum;
798 if ((len = PDF_CreatorWriteEncrypt(pCreator->m_pEncryptDict, dwEncryptObjNum, pFile)) < 0) {
804 if ((len = pFile->AppendString(FX_BSTRC(">>stream\r\n"))) < 0) {
808 if (pFile->AppendBlock(encoder.m_pData, encoder.m_dwSize) < 0) {
811 if ((len = pFile->AppendString(FX_BSTRC("\r\nendstream\r\nendobj\r\n"))) < 0) {
814 offset += encoder.m_dwSize + len;
815 m_PrevOffset = offset_tmp;
818 FX_BOOL CPDF_XRefStream::End(CPDF_Creator *pCreator, FX_BOOL bEOF )
820 if (EndObjectStream(pCreator, bEOF) < 0) {
823 return GenerateXRefStream(pCreator, bEOF);
825 FX_BOOL CPDF_XRefStream::EndXRefStream(CPDF_Creator* pCreator)
827 if (!(pCreator->m_dwFlags & FPDFCREATE_INCREMENTAL)) {
828 _AppendIndex0(m_Buffer);
829 for (FX_DWORD i = 1; i < pCreator->m_dwLastObjNum + 1; i++) {
830 FX_FILESIZE* offset = pCreator->m_ObjectOffset.GetPtrAt(i);
832 _AppendIndex1(m_Buffer, *offset);
834 _AppendIndex0(m_Buffer, FALSE);
838 FX_INT32 iSeg = m_IndexArray.GetSize() / 2;
839 for (int i = 0; i < iSeg; i++) {
840 FX_DWORD start = m_IndexArray.ElementAt(i * 2);
841 FX_DWORD end = m_IndexArray.ElementAt(i * 2 + 1) + start;
842 for (FX_DWORD j = start; j < end; j++) {
843 _AppendIndex1(m_Buffer, pCreator->m_ObjectOffset[j]);
847 return GenerateXRefStream(pCreator, FALSE);
849 FX_BOOL CPDF_XRefStream::AddObjectNumberToIndexArray(FX_DWORD objnum)
851 FX_INT32 iSize = m_IndexArray.GetSize();
853 m_IndexArray.Add(objnum);
856 FXSYS_assert(iSize > 1);
857 FX_DWORD startobjnum = m_IndexArray.ElementAt(iSize - 2);
858 FX_INT32 iCount = m_IndexArray.ElementAt(iSize - 1);
859 if (objnum == startobjnum + iCount) {
860 m_IndexArray[iSize - 1] = iCount + 1;
862 m_IndexArray.Add(objnum);
868 CPDF_Creator::CPDF_Creator(CPDF_Document* pDoc)
871 m_pParser = (CPDF_Parser*)pDoc->m_pParser;
874 m_pEncryptDict = m_pParser->GetEncryptDict();
875 m_pCryptoHandler = m_pParser->GetCryptoHandler();
877 m_pEncryptDict = NULL;
878 m_pCryptoHandler = NULL;
880 m_bSecurityChanged = FALSE;
881 m_bStandardSecurity = FALSE;
883 m_bEncryptCloned = FALSE;
884 m_bEncryptMetadata = FALSE;
890 m_pXRefStream = NULL;
891 m_ObjectStreamSize = 200;
892 m_dwLastObjNum = m_pDocument->GetLastObjNum();
895 m_dwEnryptObjNum = 0;
896 m_bNewCrypto = FALSE;
898 CPDF_Creator::~CPDF_Creator()
900 ResetStandardSecurity();
901 if (m_bEncryptCloned && m_pEncryptDict) {
902 m_pEncryptDict->Release();
903 m_pEncryptDict = NULL;
907 static FX_BOOL _IsXRefNeedEnd(CPDF_XRefStream* pXRef, FX_DWORD flag)
909 if (!(flag & FPDFCREATE_INCREMENTAL)) {
912 FX_INT32 iSize = pXRef->m_IndexArray.GetSize() / 2;
914 for (FX_INT32 i = 0; i < iSize; i++) {
915 iCount += pXRef->m_IndexArray.ElementAt(i * 2 + 1);
917 return (iCount >= PDF_XREFSTREAM_MAXSIZE);
919 FX_INT32 CPDF_Creator::WriteIndirectObjectToStream(const CPDF_Object* pObj)
921 if (!m_pXRefStream) {
924 FX_DWORD objnum = pObj->GetObjNum();
925 if (m_pParser && m_pParser->m_ObjVersion.GetSize() > (FX_INT32)objnum && m_pParser->m_ObjVersion[objnum] > 0) {
928 if (pObj->GetType() == PDFOBJ_NUMBER) {
931 CPDF_Dictionary *pDict = pObj->GetDict();
932 if (pObj->GetType() == PDFOBJ_STREAM) {
933 if (pDict && pDict->GetString(FX_BSTRC("Type")) == FX_BSTRC("XRef")) {
939 if (pDict == m_pDocument->m_pRootDict || pDict == m_pEncryptDict) {
942 if (IsSignatureDict(pDict)) {
945 if (pDict->GetString(FX_BSTRC("Type")) == FX_BSTRC("Page")) {
949 m_pXRefStream->AddObjectNumberToIndexArray(objnum);
950 if (m_pXRefStream->CompressIndirectObject(objnum, pObj, this) < 0) {
953 if (!_IsXRefNeedEnd(m_pXRefStream, m_dwFlags)) {
956 if (!m_pXRefStream->End(this)) {
959 if (!m_pXRefStream->Start()) {
964 FX_INT32 CPDF_Creator::WriteIndirectObjectToStream(FX_DWORD objnum, FX_LPCBYTE pBuffer, FX_DWORD dwSize)
966 if (!m_pXRefStream) {
969 m_pXRefStream->AddObjectNumberToIndexArray(objnum);
970 FX_INT32 iRet = m_pXRefStream->CompressIndirectObject(objnum, pBuffer, dwSize, this);
974 if (!_IsXRefNeedEnd(m_pXRefStream, m_dwFlags)) {
977 if (!m_pXRefStream->End(this)) {
980 if (!m_pXRefStream->Start()) {
985 FX_INT32 CPDF_Creator::AppendObjectNumberToXRef(FX_DWORD objnum)
987 if (!m_pXRefStream) {
990 m_pXRefStream->AddObjectNumberToIndexArray(objnum);
991 if (!_IsXRefNeedEnd(m_pXRefStream, m_dwFlags)) {
994 if (!m_pXRefStream->End(this)) {
997 if (!m_pXRefStream->Start()) {
1002 FX_INT32 CPDF_Creator::WriteStream(const CPDF_Object* pStream, FX_DWORD objnum, CPDF_CryptoHandler* pCrypto)
1004 CPDF_FlateEncoder encoder;
1005 encoder.Initialize((CPDF_Stream*)pStream, pStream == m_pMetadata ? FALSE : m_bCompress);
1006 CPDF_Encryptor encryptor;
1007 if(!encryptor.Initialize(pCrypto, objnum, encoder.m_pData, encoder.m_dwSize)) {
1010 if ((FX_DWORD)encoder.m_pDict->GetInteger(FX_BSTRC("Length")) != encryptor.m_dwSize) {
1011 encoder.CloneDict();
1012 encoder.m_pDict->SetAtInteger(FX_BSTRC("Length"), encryptor.m_dwSize);
1014 if (WriteDirectObj(objnum, encoder.m_pDict) < 0) {
1017 int len = m_File.AppendString(FX_BSTRC("stream\r\n"));
1022 if (m_File.AppendBlock(encryptor.m_pData, encryptor.m_dwSize) < 0) {
1025 m_Offset += encryptor.m_dwSize;
1026 if ((len = m_File.AppendString(FX_BSTRC("\r\nendstream"))) < 0) {
1032 FX_INT32 CPDF_Creator::WriteIndirectObj(FX_DWORD objnum, const CPDF_Object* pObj)
1034 FX_INT32 len = m_File.AppendDWord(objnum);
1039 if ((len = m_File.AppendString(FX_BSTRC(" 0 obj\r\n"))) < 0) {
1043 if (pObj->GetType() == PDFOBJ_STREAM) {
1044 CPDF_CryptoHandler *pHandler = NULL;
1045 pHandler = (pObj == m_pMetadata && !m_bEncryptMetadata) ? NULL : m_pCryptoHandler;
1046 if (WriteStream(pObj, objnum, pHandler) < 0) {
1050 if (WriteDirectObj(objnum, pObj) < 0) {
1054 if ((len = m_File.AppendString(FX_BSTRC("\r\nendobj\r\n"))) < 0) {
1058 if (AppendObjectNumberToXRef(objnum) < 0) {
1063 FX_INT32 CPDF_Creator::WriteIndirectObj(const CPDF_Object* pObj)
1065 FX_INT32 iRet = WriteIndirectObjectToStream(pObj);
1069 return WriteIndirectObj(pObj->GetObjNum(), pObj);
1071 FX_INT32 CPDF_Creator::WriteDirectObj(FX_DWORD objnum, const CPDF_Object* pObj, FX_BOOL bEncrypt)
1075 if (m_File.AppendString(FX_BSTRC(" null")) < 0) {
1081 switch (pObj->GetType()) {
1083 if (m_File.AppendString(FX_BSTRC(" null")) < 0) {
1088 case PDFOBJ_BOOLEAN:
1090 if (m_File.AppendString(FX_BSTRC(" ")) < 0) {
1093 if ((len = m_File.AppendString(pObj->GetString())) < 0) {
1096 m_Offset += len + 1;
1098 case PDFOBJ_STRING: {
1099 CFX_ByteString str = pObj->GetString();
1100 FX_BOOL bHex = ((CPDF_String*)pObj)->IsHex();
1101 if (m_pCryptoHandler == NULL || !bEncrypt) {
1102 CFX_ByteString content = PDF_EncodeString(str, bHex);
1103 if ((len = m_File.AppendString(content)) < 0) {
1109 CPDF_Encryptor encryptor;
1110 encryptor.Initialize(m_pCryptoHandler, objnum, (FX_LPBYTE)(FX_LPCSTR)str, str.GetLength());
1111 CFX_ByteString content = PDF_EncodeString(CFX_ByteString((FX_LPCSTR)encryptor.m_pData, encryptor.m_dwSize), bHex);
1112 if ((len = m_File.AppendString(content)) < 0) {
1118 case PDFOBJ_STREAM: {
1119 CPDF_FlateEncoder encoder;
1120 encoder.Initialize((CPDF_Stream*)pObj, m_bCompress);
1121 CPDF_Encryptor encryptor;
1122 CPDF_CryptoHandler* pHandler = m_pCryptoHandler;
1123 encryptor.Initialize(pHandler, objnum, encoder.m_pData, encoder.m_dwSize);
1124 if ((FX_DWORD)encoder.m_pDict->GetInteger(FX_BSTRC("Length")) != encryptor.m_dwSize) {
1125 encoder.CloneDict();
1126 encoder.m_pDict->SetAtInteger(FX_BSTRC("Length"), encryptor.m_dwSize);
1128 if (WriteDirectObj(objnum, encoder.m_pDict) < 0) {
1131 if ((len = m_File.AppendString(FX_BSTRC("stream\r\n"))) < 0) {
1135 if (m_File.AppendBlock(encryptor.m_pData, encryptor.m_dwSize) < 0) {
1138 m_Offset += encryptor.m_dwSize;
1139 if ((len = m_File.AppendString(FX_BSTRC("\r\nendstream"))) < 0) {
1146 if (m_File.AppendString(FX_BSTRC("/")) < 0) {
1149 CFX_ByteString str = pObj->GetString();
1150 if ((len = m_File.AppendString(PDF_NameEncode(str))) < 0) {
1153 m_Offset += len + 1;
1156 case PDFOBJ_REFERENCE: {
1157 if (m_File.AppendString(FX_BSTRC(" ")) < 0) {
1160 CPDF_Reference* p = (CPDF_Reference*)pObj;
1161 if ((len = m_File.AppendDWord(p->GetRefObjNum())) < 0) {
1164 if (m_File.AppendString(FX_BSTRC(" 0 R")) < 0) {
1167 m_Offset += len + 5;
1170 case PDFOBJ_ARRAY: {
1171 if (m_File.AppendString(FX_BSTRC("[")) < 0) {
1175 CPDF_Array* p = (CPDF_Array*)pObj;
1176 for (FX_DWORD i = 0; i < p->GetCount(); i ++) {
1177 CPDF_Object* pElement = p->GetElement(i);
1178 if (pElement->GetObjNum()) {
1179 if (m_File.AppendString(FX_BSTRC(" ")) < 0) {
1182 if ((len = m_File.AppendDWord(pElement->GetObjNum())) < 0) {
1185 if (m_File.AppendString(FX_BSTRC(" 0 R")) < 0) {
1188 m_Offset += len + 5;
1190 if (WriteDirectObj(objnum, pElement) < 0) {
1195 if (m_File.AppendString(FX_BSTRC("]")) < 0) {
1201 case PDFOBJ_DICTIONARY: {
1202 if (m_pCryptoHandler == NULL || pObj == m_pEncryptDict) {
1203 return PDF_CreatorAppendObject(pObj, &m_File, m_Offset);
1205 if (m_File.AppendString(FX_BSTRC("<<")) < 0) {
1209 CPDF_Dictionary* p = (CPDF_Dictionary*)pObj;
1210 FX_BOOL bSignDict = IsSignatureDict(p);
1211 FX_POSITION pos = p->GetStartPos();
1213 FX_BOOL bSignValue = FALSE;
1215 CPDF_Object* pValue = p->GetNextElement(pos, key);
1216 if (m_File.AppendString(FX_BSTRC("/")) < 0) {
1219 if ((len = m_File.AppendString(PDF_NameEncode(key))) < 0) {
1222 m_Offset += len + 1;
1223 if (bSignDict && key == FX_BSTRC("Contents")) {
1226 if (pValue->GetObjNum()) {
1227 if (m_File.AppendString(FX_BSTRC(" ")) < 0) {
1230 if ((len = m_File.AppendDWord(pValue->GetObjNum())) < 0) {
1233 if (m_File.AppendString(FX_BSTRC(" 0 R ")) < 0) {
1236 m_Offset += len + 6;
1238 if (WriteDirectObj(objnum, pValue, !bSignValue) < 0) {
1243 if (m_File.AppendString(FX_BSTRC(">>")) < 0) {
1252 FX_INT32 CPDF_Creator::WriteOldIndirectObject(FX_DWORD objnum)
1254 if(m_pParser->m_V5Type[objnum] == 0 || m_pParser->m_V5Type[objnum] == 255) {
1257 m_ObjectOffset[objnum] = m_Offset;
1258 FX_LPVOID valuetemp = NULL;
1259 FX_BOOL bExistInMap = m_pDocument->m_IndirectObjs.Lookup((FX_LPVOID)(FX_UINTPTR)objnum, valuetemp);
1260 FX_BOOL bObjStm = (m_pParser->m_V5Type[objnum] == 2) && m_pEncryptDict && !m_pXRefStream;
1261 if(m_pParser->m_bVersionUpdated || m_bSecurityChanged || bExistInMap || bObjStm) {
1262 CPDF_Object* pObj = m_pDocument->GetIndirectObject(objnum);
1264 m_ObjectOffset[objnum] = 0;
1265 m_ObjectSize[objnum] = 0;
1268 if (WriteIndirectObj(pObj)) {
1272 m_pDocument->ReleaseIndirectObject(objnum);
1277 m_pParser->GetIndirectBinary(objnum, pBuffer, size);
1278 if (pBuffer == NULL) {
1281 if (m_pParser->m_V5Type[objnum] == 2) {
1282 if (m_pXRefStream) {
1283 if (WriteIndirectObjectToStream(objnum, pBuffer, size) < 0) {
1288 FX_INT32 len = m_File.AppendDWord(objnum);
1292 if (m_File.AppendString(FX_BSTRC(" 0 obj ")) < 0) {
1295 m_Offset += len + 7;
1296 if (m_File.AppendBlock(pBuffer, size) < 0) {
1300 if (m_File.AppendString(FX_BSTRC("\r\nendobj\r\n")) < 0) {
1306 if (m_File.AppendBlock(pBuffer, size) < 0) {
1310 if(AppendObjectNumberToXRef(objnum) < 0) {
1318 FX_INT32 CPDF_Creator::WriteOldObjs(IFX_Pause *pPause)
1320 FX_DWORD nOldSize = m_pParser->m_CrossRef.GetSize();
1321 FX_DWORD objnum = (FX_DWORD)(FX_UINTPTR)m_Pos;
1322 for(; objnum < nOldSize; objnum ++) {
1323 FX_INT32 iRet = WriteOldIndirectObject(objnum);
1330 m_ObjectSize[objnum] = (FX_DWORD)(m_Offset - m_ObjectOffset[objnum]);
1331 if (pPause && pPause->NeedToPauseNow()) {
1332 m_Pos = (FX_LPVOID)(FX_UINTPTR)(objnum + 1);
1338 FX_INT32 CPDF_Creator::WriteNewObjs(FX_BOOL bIncremental, IFX_Pause *pPause)
1340 FX_INT32 iCount = m_NewObjNumArray.GetSize();
1341 FX_INT32 index = (FX_INT32)(FX_UINTPTR)m_Pos;
1342 while (index < iCount) {
1343 FX_DWORD objnum = m_NewObjNumArray.ElementAt(index);
1344 CPDF_Object *pObj = NULL;
1345 m_pDocument->m_IndirectObjs.Lookup((FX_LPVOID)(FX_UINTPTR)objnum, (FX_LPVOID&)pObj);
1350 m_ObjectOffset[objnum] = m_Offset;
1351 if (WriteIndirectObj(pObj)) {
1354 m_ObjectSize[objnum] = (FX_DWORD)(m_Offset - m_ObjectOffset[objnum]);
1356 if (pPause && pPause->NeedToPauseNow()) {
1357 m_Pos = (FX_POSITION)(FX_UINTPTR)index;
1363 void CPDF_Creator::InitOldObjNumOffsets()
1369 FX_DWORD dwStart = 0;
1370 FX_DWORD dwEnd = m_pParser->GetLastObjNum();
1371 while (dwStart <= dwEnd) {
1372 while (dwStart <= dwEnd && (m_pParser->m_V5Type[dwStart] == 0 || m_pParser->m_V5Type[dwStart] == 255)) {
1375 if (dwStart > dwEnd) {
1379 while (j <= dwEnd && m_pParser->m_V5Type[j] != 0 && m_pParser->m_V5Type[j] != 255) {
1382 m_ObjectOffset.Add(dwStart, j - dwStart);
1383 m_ObjectSize.Add(dwStart, j - dwStart);
1387 void CPDF_Creator::InitNewObjNumOffsets()
1389 FX_BOOL bIncremental = (m_dwFlags & FPDFCREATE_INCREMENTAL) != 0;
1390 FX_BOOL bNoOriginal = (m_dwFlags & FPDFCREATE_NO_ORIGINAL) != 0;
1391 FX_DWORD nOldSize = m_pParser ? m_pParser->m_CrossRef.GetSize() : 0;
1392 FX_POSITION pos = m_pDocument->m_IndirectObjs.GetStartPosition();
1396 m_pDocument->m_IndirectObjs.GetNextAssoc(pos, (FX_LPVOID&)key, (FX_LPVOID&)pObj);
1397 FX_DWORD objnum = (FX_DWORD)key;
1398 if (pObj->GetObjNum() == -1) {
1402 if (!pObj->IsModified()) {
1406 if (objnum < nOldSize && m_pParser->m_V5Type[objnum] != 0) {
1410 AppendNewObjNum(objnum);
1412 FX_INT32 iCount = m_NewObjNumArray.GetSize();
1417 FX_DWORD dwStartObjNum = 0;
1418 FX_BOOL bCrossRefValid = m_pParser && m_pParser->GetLastXRefOffset() > 0;
1419 while (i < iCount) {
1420 dwStartObjNum = m_NewObjNumArray.ElementAt(i);
1421 if ((bIncremental && (bNoOriginal || bCrossRefValid)) || !m_ObjectOffset.GetPtrAt(dwStartObjNum)) {
1429 FX_DWORD dwLastObjNum = dwStartObjNum;
1431 FX_BOOL bNewStart = FALSE;
1432 for (; i < iCount; i++) {
1433 FX_DWORD dwCurObjNum = m_NewObjNumArray.ElementAt(i);
1434 FX_BOOL bExist = (dwCurObjNum < nOldSize && m_ObjectOffset.GetPtrAt(dwCurObjNum) != NULL);
1435 if (bExist || dwCurObjNum - dwLastObjNum > 1) {
1437 m_ObjectOffset.Add(dwStartObjNum, dwLastObjNum - dwStartObjNum + 1);
1438 m_ObjectSize.Add(dwStartObjNum, dwLastObjNum - dwStartObjNum + 1);
1440 dwStartObjNum = dwCurObjNum;
1443 dwStartObjNum = dwCurObjNum;
1446 dwLastObjNum = dwCurObjNum;
1448 m_ObjectOffset.Add(dwStartObjNum, dwLastObjNum - dwStartObjNum + 1);
1449 m_ObjectSize.Add(dwStartObjNum, dwLastObjNum - dwStartObjNum + 1);
1451 void CPDF_Creator::AppendNewObjNum(FX_DWORD objbum)
1453 FX_INT32 iStart = 0, iFind = 0;
1454 FX_INT32 iEnd = m_NewObjNumArray.GetUpperBound();
1455 while (iStart <= iEnd) {
1456 FX_INT32 iMid = (iStart + iEnd) / 2;
1457 FX_DWORD dwMid = m_NewObjNumArray.ElementAt(iMid);
1458 if (objbum < dwMid) {
1465 FX_DWORD dwNext = m_NewObjNumArray.ElementAt(iMid + 1);
1466 if (objbum < dwNext) {
1473 m_NewObjNumArray.InsertAt(iFind, objbum);
1475 FX_INT32 CPDF_Creator::WriteDoc_Stage1(IFX_Pause *pPause)
1477 FXSYS_assert(m_iStage > -1 || m_iStage < 20);
1478 if (m_iStage == 0) {
1479 if (m_pParser == NULL) {
1480 m_dwFlags &= ~FPDFCREATE_INCREMENTAL;
1482 if (m_bSecurityChanged && (m_dwFlags & FPDFCREATE_NO_ORIGINAL) == 0) {
1483 m_dwFlags &= ~FPDFCREATE_INCREMENTAL;
1485 CPDF_Dictionary* pDict = m_pDocument->GetRoot();
1486 m_pMetadata = pDict ? pDict->GetElementValue(FX_BSTRC("Metadata")) : NULL;
1487 if (m_dwFlags & FPDFCREATE_OBJECTSTREAM) {
1488 m_pXRefStream = FX_NEW CPDF_XRefStream;
1489 m_pXRefStream->Start();
1490 if ((m_dwFlags & FPDFCREATE_INCREMENTAL) != 0 && m_pParser) {
1491 FX_FILESIZE prev = m_pParser->GetLastXRefOffset();
1492 m_pXRefStream->m_PrevOffset = prev;
1497 if (m_iStage == 10) {
1498 if ((m_dwFlags & FPDFCREATE_INCREMENTAL) == 0) {
1499 if (m_File.AppendString(FX_BSTRC("%PDF-1.")) < 0) {
1503 FX_INT32 version = 7;
1504 if (m_FileVersion) {
1505 version = m_FileVersion;
1506 } else if (m_pParser) {
1507 version = m_pParser->GetFileVersion();
1509 FX_INT32 len = m_File.AppendDWord(version % 10);
1514 if ((len = m_File.AppendString(FX_BSTRC("\r\n%\xA1\xB3\xC5\xD7\r\n"))) < 0) {
1518 InitOldObjNumOffsets();
1521 IFX_FileRead* pSrcFile = m_pParser->GetFileAccess();
1522 m_Offset = pSrcFile->GetSize();
1523 m_Pos = (FX_LPVOID)(FX_UINTPTR)m_Offset;
1527 if (m_iStage == 15) {
1528 if ((m_dwFlags & FPDFCREATE_NO_ORIGINAL) == 0 && m_Pos) {
1529 IFX_FileRead* pSrcFile = m_pParser->GetFileAccess();
1530 FX_BYTE buffer[4096];
1531 FX_DWORD src_size = (FX_DWORD)(FX_UINTPTR)m_Pos;
1533 FX_DWORD block_size = src_size > 4096 ? 4096 : src_size;
1534 if (!pSrcFile->ReadBlock(buffer, m_Offset - src_size, block_size)) {
1537 if (m_File.AppendBlock(buffer, block_size) < 0) {
1540 src_size -= block_size;
1541 if (pPause && pPause->NeedToPauseNow()) {
1542 m_Pos = (FX_LPVOID)(FX_UINTPTR)src_size;
1547 if ((m_dwFlags & FPDFCREATE_NO_ORIGINAL) == 0 && m_pParser->GetLastXRefOffset() == 0) {
1548 InitOldObjNumOffsets();
1549 FX_DWORD dwEnd = m_pParser->GetLastObjNum();
1550 FX_BOOL bObjStm = (m_dwFlags & FPDFCREATE_OBJECTSTREAM) != 0;
1551 for (FX_DWORD objnum = 0; objnum <= dwEnd; objnum++) {
1552 if (m_pParser->m_V5Type[objnum] == 0 || m_pParser->m_V5Type[objnum] == 255) {
1555 m_ObjectOffset[objnum] = m_pParser->m_CrossRef[objnum];
1557 m_pXRefStream->AddObjectNumberToIndexArray(objnum);
1561 m_pXRefStream->EndXRefStream(this);
1562 m_pXRefStream->Start();
1567 InitNewObjNumOffsets();
1570 FX_INT32 CPDF_Creator::WriteDoc_Stage2(IFX_Pause *pPause)
1572 FXSYS_assert(m_iStage >= 20 || m_iStage < 30);
1573 if (m_iStage == 20) {
1574 if ((m_dwFlags & FPDFCREATE_INCREMENTAL) == 0 && m_pParser) {
1575 m_Pos = (FX_LPVOID)(FX_UINTPTR)0;
1581 if (m_iStage == 21) {
1582 FX_INT32 iRet = WriteOldObjs(pPause);
1588 if (m_iStage == 25) {
1589 m_Pos = (FX_LPVOID)(FX_UINTPTR)0;
1592 if (m_iStage == 26) {
1593 FX_INT32 iRet = WriteNewObjs((m_dwFlags & FPDFCREATE_INCREMENTAL) != 0, pPause);
1599 if (m_iStage == 27) {
1600 if (NULL != m_pEncryptDict && 0 == m_pEncryptDict->GetObjNum()) {
1601 m_dwLastObjNum += 1;
1602 FX_FILESIZE saveOffset = m_Offset;
1603 if (WriteIndirectObj(m_dwLastObjNum, m_pEncryptDict) < 0) {
1606 m_ObjectOffset.Add(m_dwLastObjNum, 1);
1607 m_ObjectOffset[m_dwLastObjNum] = saveOffset;
1608 m_ObjectSize.Add(m_dwLastObjNum, 1);
1609 m_ObjectSize[m_dwLastObjNum] = m_Offset - saveOffset;
1610 m_dwEnryptObjNum = m_dwLastObjNum;
1611 if (m_dwFlags & FPDFCREATE_INCREMENTAL) {
1612 m_NewObjNumArray.Add(m_dwLastObjNum);
1619 FX_INT32 CPDF_Creator::WriteDoc_Stage3(IFX_Pause *pPause)
1621 FXSYS_assert(m_iStage >= 80 || m_iStage < 90);
1622 FX_DWORD dwLastObjNum = m_dwLastObjNum;
1623 if (m_iStage == 80) {
1624 m_XrefStart = m_Offset;
1625 if (m_dwFlags & FPDFCREATE_OBJECTSTREAM) {
1626 m_pXRefStream->End(this, TRUE);
1627 m_XrefStart = m_pXRefStream->m_PrevOffset;
1629 } else if ((m_dwFlags & FPDFCREATE_INCREMENTAL) == 0 || !m_pParser->IsXRefStream()) {
1630 if ((m_dwFlags & FPDFCREATE_INCREMENTAL) == 0 || m_pParser->GetLastXRefOffset() == 0) {
1632 str = m_ObjectOffset.GetPtrAt(1) ? FX_BSTRC("xref\r\n") : FX_BSTRC("xref\r\n0 1\r\n0000000000 65536 f\r\n");
1633 if (m_File.AppendString(str) < 0) {
1636 m_Pos = (FX_LPVOID)(FX_UINTPTR)1;
1639 if (m_File.AppendString(FX_BSTRC("xref\r\n")) < 0) {
1642 m_Pos = (FX_LPVOID)(FX_UINTPTR)0;
1649 if (m_iStage == 81) {
1651 FX_DWORD i = (FX_DWORD)(FX_UINTPTR)m_Pos, j;
1652 while (i <= dwLastObjNum) {
1653 while (i <= dwLastObjNum && !m_ObjectOffset.GetPtrAt(i)) {
1656 if (i > dwLastObjNum) {
1660 while (j <= dwLastObjNum && m_ObjectOffset.GetPtrAt(j)) {
1664 str.Format("0 %d\r\n0000000000 65536 f\r\n", j);
1666 str.Format("%d %d\r\n", i, j - i);
1668 if (m_File.AppendBlock((FX_LPCSTR)str, str.GetLength()) < 0) {
1672 str.Format("%010d 00000 n\r\n", m_ObjectOffset[i ++]);
1673 if (m_File.AppendBlock((FX_LPCSTR)str, str.GetLength()) < 0) {
1677 if (i > dwLastObjNum) {
1680 if (pPause && pPause->NeedToPauseNow()) {
1681 m_Pos = (FX_LPVOID)(FX_UINTPTR)i;
1687 if (m_iStage == 82) {
1689 FX_INT32 iCount = m_NewObjNumArray.GetSize();
1690 FX_INT32 i = (FX_INT32)(FX_UINTPTR)m_Pos;
1691 while (i < iCount) {
1693 FX_DWORD objnum = m_NewObjNumArray.ElementAt(i);
1694 while (j < iCount) {
1695 if (++j == iCount) {
1698 FX_DWORD dwCurrent = m_NewObjNumArray.ElementAt(j);
1699 if (dwCurrent - objnum > 1) {
1704 objnum = m_NewObjNumArray.ElementAt(i);
1706 str.Format("0 %d\r\n0000000000 65536 f\r\n", j - i + 1);
1708 str.Format("%d %d\r\n", objnum, j - i);
1710 if (m_File.AppendBlock((FX_LPCSTR)str, str.GetLength()) < 0) {
1714 objnum = m_NewObjNumArray.ElementAt(i++);
1715 str.Format("%010d 00000 n\r\n", m_ObjectOffset[objnum]);
1716 if (m_File.AppendBlock((FX_LPCSTR)str, str.GetLength()) < 0) {
1720 if (pPause && (i % 100) == 0 && pPause->NeedToPauseNow()) {
1721 m_Pos = (FX_LPVOID)(FX_UINTPTR)i;
1729 static FX_INT32 _OutPutIndex(CFX_FileBufferArchive* pFile, FX_FILESIZE offset)
1731 FXSYS_assert(pFile);
1732 if (sizeof(offset) > 4) {
1733 if (FX_GETBYTEOFFSET32(offset)) {
1734 if (pFile->AppendByte(FX_GETBYTEOFFSET56(offset)) < 0) {
1737 if (pFile->AppendByte(FX_GETBYTEOFFSET48(offset)) < 0) {
1740 if (pFile->AppendByte(FX_GETBYTEOFFSET40(offset)) < 0) {
1743 if (pFile->AppendByte(FX_GETBYTEOFFSET32(offset)) < 0) {
1748 if (pFile->AppendByte(FX_GETBYTEOFFSET24(offset)) < 0) {
1751 if (pFile->AppendByte(FX_GETBYTEOFFSET16(offset)) < 0) {
1754 if (pFile->AppendByte(FX_GETBYTEOFFSET8(offset)) < 0) {
1757 if (pFile->AppendByte(FX_GETBYTEOFFSET0(offset)) < 0) {
1760 if (pFile->AppendByte(0) < 0) {
1765 FX_INT32 CPDF_Creator::WriteDoc_Stage4(IFX_Pause *pPause)
1767 FXSYS_assert(m_iStage >= 90);
1768 if ((m_dwFlags & FPDFCREATE_OBJECTSTREAM) == 0) {
1769 FX_BOOL bXRefStream = (m_dwFlags & FPDFCREATE_INCREMENTAL) != 0 && m_pParser->IsXRefStream();
1771 if (m_File.AppendString(FX_BSTRC("trailer\r\n<<")) < 0) {
1775 if (m_File.AppendDWord(m_pDocument->m_LastObjNum + 1) < 0) {
1778 if (m_File.AppendString(FX_BSTRC(" 0 obj <<")) < 0) {
1783 CPDF_Dictionary* p = m_pParser->m_pTrailer;
1784 FX_POSITION pos = p->GetStartPos();
1787 CPDF_Object* pValue = p->GetNextElement(pos, key);
1788 if (key == FX_BSTRC("Encrypt") || key == FX_BSTRC("Size") || key == FX_BSTRC("Filter") ||
1789 key == FX_BSTRC("Index") || key == FX_BSTRC("Length") || key == FX_BSTRC("Prev") ||
1790 key == FX_BSTRC("W") || key == FX_BSTRC("XRefStm") || key == FX_BSTRC("ID")) {
1793 if (m_File.AppendString((FX_BSTRC("/"))) < 0) {
1796 if (m_File.AppendString(PDF_NameEncode(key)) < 0) {
1799 if (pValue->GetObjNum()) {
1800 if (m_File.AppendString(FX_BSTRC(" ")) < 0) {
1803 if (m_File.AppendDWord(pValue->GetObjNum()) < 0) {
1806 if (m_File.AppendString(FX_BSTRC(" 0 R ")) < 0) {
1810 FX_FILESIZE offset = 0;
1811 if (PDF_CreatorAppendObject(pValue, &m_File, offset) < 0) {
1817 if (m_File.AppendString(FX_BSTRC("\r\n/Root ")) < 0) {
1820 if (m_File.AppendDWord(m_pDocument->m_pRootDict->GetObjNum()) < 0) {
1823 if (m_File.AppendString(FX_BSTRC(" 0 R\r\n")) < 0) {
1826 if (m_pDocument->m_pInfoDict) {
1827 if (m_File.AppendString(FX_BSTRC("/Info ")) < 0) {
1830 if (m_File.AppendDWord(m_pDocument->m_pInfoDict->GetObjNum()) < 0) {
1833 if (m_File.AppendString(FX_BSTRC(" 0 R\r\n")) < 0) {
1838 if (m_pEncryptDict) {
1839 if (m_File.AppendString(FX_BSTRC("/Encrypt")) < 0) {
1842 FX_DWORD dwObjNum = m_pEncryptDict->GetObjNum();
1843 if (dwObjNum == 0) {
1844 dwObjNum = m_pDocument->GetLastObjNum() + 1;
1846 if (m_File.AppendString(FX_BSTRC(" ")) < 0) {
1849 if (m_File.AppendDWord(dwObjNum) < 0) {
1852 if (m_File.AppendString(FX_BSTRC(" 0 R ")) < 0) {
1856 if (m_File.AppendString(FX_BSTRC("/Size ")) < 0) {
1859 if (m_File.AppendDWord(m_dwLastObjNum + (bXRefStream ? 2 : 1)) < 0) {
1862 if ((m_dwFlags & FPDFCREATE_INCREMENTAL) != 0) {
1863 FX_FILESIZE prev = m_pParser->GetLastXRefOffset();
1865 if (m_File.AppendString(FX_BSTRC("/Prev ")) < 0) {
1868 FX_CHAR offset_buf[20];
1869 FXSYS_memset32(offset_buf, 0, sizeof(offset_buf));
1870 FXSYS_i64toa(prev, offset_buf, 10);
1871 if (m_File.AppendBlock(offset_buf, FXSYS_strlen(offset_buf)) < 0) {
1877 if (m_File.AppendString((FX_BSTRC("/ID"))) < 0) {
1880 FX_FILESIZE offset = 0;
1881 if (PDF_CreatorAppendObject(m_pIDArray, &m_File, offset) < 0) {
1886 if (m_File.AppendString(FX_BSTRC(">>")) < 0) {
1890 if (m_File.AppendString(FX_BSTRC("/W[0 4 1]/Index[")) < 0) {
1893 if ((m_dwFlags & FPDFCREATE_INCREMENTAL) != 0 && m_pParser && m_pParser->GetLastXRefOffset() == 0) {
1895 for (i = 0; i < m_dwLastObjNum; i++) {
1896 if (!m_ObjectOffset.GetPtrAt(i)) {
1899 if (m_File.AppendDWord(i) < 0) {
1902 if (m_File.AppendString(FX_BSTRC(" 1 ")) < 0) {
1906 if (m_File.AppendString(FX_BSTRC("]/Length ")) < 0) {
1909 if (m_File.AppendDWord(m_dwLastObjNum * 5) < 0) {
1912 if (m_File.AppendString(FX_BSTRC(">>stream\r\n")) < 0) {
1915 for (i = 0; i < m_dwLastObjNum; i++) {
1916 FX_FILESIZE* offset = m_ObjectOffset.GetPtrAt(i);
1920 _OutPutIndex(&m_File, *offset);
1923 int count = m_NewObjNumArray.GetSize();
1925 for (i = 0; i < count; i++) {
1926 FX_DWORD objnum = m_NewObjNumArray.ElementAt(i);
1927 if (m_File.AppendDWord(objnum) < 0) {
1930 if (m_File.AppendString(FX_BSTRC(" 1 ")) < 0) {
1934 if (m_File.AppendString(FX_BSTRC("]/Length ")) < 0) {
1937 if (m_File.AppendDWord(count * 5) < 0) {
1940 if (m_File.AppendString(FX_BSTRC(">>stream\r\n")) < 0) {
1943 for (i = 0; i < count; i++) {
1944 FX_DWORD objnum = m_NewObjNumArray.ElementAt(i);
1945 FX_FILESIZE offset = m_ObjectOffset[objnum];
1946 _OutPutIndex(&m_File, offset);
1949 if (m_File.AppendString(FX_BSTRC("\r\nendstream")) < 0) {
1954 if (m_File.AppendString(FX_BSTRC("\r\nstartxref\r\n")) < 0) {
1957 FX_CHAR offset_buf[20];
1958 FXSYS_memset32(offset_buf, 0, sizeof(offset_buf));
1959 FXSYS_i64toa(m_XrefStart, offset_buf, 10);
1960 if (m_File.AppendBlock(offset_buf, FXSYS_strlen(offset_buf)) < 0) {
1963 if (m_File.AppendString(FX_BSTRC("\r\n%%EOF\r\n")) < 0) {
1967 return m_iStage = 100;
1969 void CPDF_Creator::Clear()
1971 if (m_pXRefStream) {
1972 delete m_pXRefStream;
1973 m_pXRefStream = NULL;
1976 m_NewObjNumArray.RemoveAll();
1978 m_pIDArray->Release();
1982 FX_BOOL CPDF_Creator::Create(FX_LPCSTR filename, FX_DWORD flags)
1984 if (!m_File.AttachFile(filename)) {
1987 FX_BOOL bRet = Create(flags);
1988 if (!bRet || !(flags & FPDFCREATE_PROGRESSIVE)) {
1993 FX_BOOL CPDF_Creator::Create(FX_LPCWSTR filename, FX_DWORD flags)
1995 if (!m_File.AttachFile(filename)) {
1998 FX_BOOL bRet = Create(flags);
1999 if (!bRet || !(flags & FPDFCREATE_PROGRESSIVE)) {
2004 FX_BOOL CPDF_Creator::Create(IFX_StreamWrite* pFile, FX_DWORD flags)
2009 if (!m_File.AttachFile(pFile, FALSE)) {
2012 return Create(flags);
2014 FX_BOOL CPDF_Creator::Create(FX_DWORD flags)
2019 m_dwLastObjNum = m_pDocument->GetLastObjNum();
2020 m_ObjectOffset.Clear();
2021 m_ObjectSize.Clear();
2022 m_NewObjNumArray.RemoveAll();
2024 if (flags & FPDFCREATE_PROGRESSIVE) {
2027 return Continue(NULL) > -1;
2029 void CPDF_Creator::InitID(FX_BOOL bDefault )
2031 CPDF_Array* pOldIDArray = m_pParser ? m_pParser->GetIDArray() : NULL;
2032 FX_BOOL bNewId = !m_pIDArray;
2034 FX_LPDWORD pBuffer = NULL;
2035 m_pIDArray = CPDF_Array::Create();
2036 CPDF_Object* pID1 = pOldIDArray ? pOldIDArray->GetElement(0) : NULL;
2038 m_pIDArray->Add(pID1->Clone());
2040 pBuffer = FX_Alloc(FX_DWORD, 4);
2041 PDF_GenerateFileID((FX_DWORD)(FX_UINTPTR)this, m_dwLastObjNum, pBuffer);
2042 CFX_ByteStringC bsBuffer((FX_LPCBYTE)pBuffer, 4 * sizeof(FX_DWORD));
2043 m_pIDArray->Add(CPDF_String::Create(bsBuffer, TRUE), m_pDocument);
2053 CPDF_Object* pID2 = pOldIDArray->GetElement(1);
2054 if ((m_dwFlags & FPDFCREATE_INCREMENTAL) && m_pEncryptDict && pID2) {
2055 m_pIDArray->Add(pID2->Clone());
2058 FX_LPDWORD pBuffer = FX_Alloc(FX_DWORD, 4);
2059 PDF_GenerateFileID((FX_DWORD)(FX_UINTPTR)this, m_dwLastObjNum, pBuffer);
2060 CFX_ByteStringC bsBuffer((FX_LPCBYTE)pBuffer, 4 * sizeof(FX_DWORD));
2061 m_pIDArray->Add(CPDF_String::Create(bsBuffer, TRUE), m_pDocument);
2065 m_pIDArray->Add(m_pIDArray->GetElement(0)->Clone());
2066 if (m_pEncryptDict && !pOldIDArray && m_pParser && bNewId) {
2067 if (m_pEncryptDict->GetString(FX_BSTRC("Filter")) == FX_BSTRC("Standard")) {
2068 CPDF_StandardSecurityHandler handler;
2069 CFX_ByteString user_pass = m_pParser->GetPassword();
2070 FX_DWORD flag = PDF_ENCRYPT_CONTENT;
2071 handler.OnCreate(m_pEncryptDict, m_pIDArray, (FX_LPCBYTE)user_pass, user_pass.GetLength(), flag);
2072 if (m_pCryptoHandler && m_bNewCrypto) {
2073 delete m_pCryptoHandler;
2075 m_pCryptoHandler = FX_NEW CPDF_StandardCryptoHandler;
2076 m_pCryptoHandler->Init(m_pEncryptDict, &handler);
2077 m_bNewCrypto = TRUE;
2078 m_bSecurityChanged = TRUE;
2082 FX_INT32 CPDF_Creator::Continue(IFX_Pause *pPause)
2088 while (m_iStage < 100) {
2089 if (m_iStage < 20) {
2090 iRet = WriteDoc_Stage1(pPause);
2091 } else if (m_iStage < 30) {
2092 iRet = WriteDoc_Stage2(pPause);
2093 } else if (m_iStage < 90) {
2094 iRet = WriteDoc_Stage3(pPause);
2096 iRet = WriteDoc_Stage4(pPause);
2098 if (iRet < m_iStage) {
2102 if (iRet < 1 || m_iStage == 100) {
2105 return iRet > 99 ? 0 : (iRet < 1 ? -1 : iRet);
2109 FX_BOOL CPDF_Creator::SetFileVersion(FX_INT32 fileVersion )
2111 if (fileVersion < 10 || fileVersion > 17) {
2114 m_FileVersion = fileVersion;
2117 void CPDF_Creator::RemoveSecurity()
2119 ResetStandardSecurity();
2120 m_bSecurityChanged = TRUE;
2121 m_pEncryptDict = NULL;
2122 m_pCryptoHandler = NULL;
2124 void CPDF_Creator::ResetStandardSecurity()
2126 if ((m_bStandardSecurity || m_bNewCrypto) && m_pCryptoHandler) {
2127 delete m_pCryptoHandler;
2128 m_pCryptoHandler = NULL;
2130 m_bNewCrypto = FALSE;
2131 if (!m_bStandardSecurity) {
2134 if (m_pEncryptDict) {
2135 m_pEncryptDict->Release();
2136 m_pEncryptDict = NULL;
2138 m_bStandardSecurity = FALSE;