| OLD | NEW |
| (Empty) |
| 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. | |
| 4 | |
| 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | |
| 6 | |
| 7 #include "core/include/fpdfapi/cfdf_document.h" | |
| 8 | |
| 9 #include "core/include/fpdfapi/cpdf_dictionary.h" | |
| 10 #include "core/include/fpdfapi/fpdf_serial.h" | |
| 11 #include "core/src/fpdfapi/fpdf_parser/cpdf_syntax_parser.h" | |
| 12 | |
| 13 CFDF_Document::CFDF_Document() : CPDF_IndirectObjectHolder(NULL) { | |
| 14 m_pRootDict = NULL; | |
| 15 m_pFile = NULL; | |
| 16 m_bOwnFile = FALSE; | |
| 17 } | |
| 18 CFDF_Document::~CFDF_Document() { | |
| 19 if (m_bOwnFile && m_pFile) { | |
| 20 m_pFile->Release(); | |
| 21 } | |
| 22 } | |
| 23 CFDF_Document* CFDF_Document::CreateNewDoc() { | |
| 24 CFDF_Document* pDoc = new CFDF_Document; | |
| 25 pDoc->m_pRootDict = new CPDF_Dictionary; | |
| 26 pDoc->AddIndirectObject(pDoc->m_pRootDict); | |
| 27 CPDF_Dictionary* pFDFDict = new CPDF_Dictionary; | |
| 28 pDoc->m_pRootDict->SetAt("FDF", pFDFDict); | |
| 29 return pDoc; | |
| 30 } | |
| 31 CFDF_Document* CFDF_Document::ParseFile(IFX_FileRead* pFile, FX_BOOL bOwnFile) { | |
| 32 if (!pFile) { | |
| 33 return NULL; | |
| 34 } | |
| 35 CFDF_Document* pDoc = new CFDF_Document; | |
| 36 pDoc->ParseStream(pFile, bOwnFile); | |
| 37 if (!pDoc->m_pRootDict) { | |
| 38 delete pDoc; | |
| 39 return NULL; | |
| 40 } | |
| 41 return pDoc; | |
| 42 } | |
| 43 CFDF_Document* CFDF_Document::ParseMemory(const uint8_t* pData, FX_DWORD size) { | |
| 44 return CFDF_Document::ParseFile(FX_CreateMemoryStream((uint8_t*)pData, size), | |
| 45 TRUE); | |
| 46 } | |
| 47 void CFDF_Document::ParseStream(IFX_FileRead* pFile, FX_BOOL bOwnFile) { | |
| 48 m_pFile = pFile; | |
| 49 m_bOwnFile = bOwnFile; | |
| 50 CPDF_SyntaxParser parser; | |
| 51 parser.InitParser(m_pFile, 0); | |
| 52 while (1) { | |
| 53 bool bNumber; | |
| 54 CFX_ByteString word = parser.GetNextWord(&bNumber); | |
| 55 if (bNumber) { | |
| 56 FX_DWORD objnum = FXSYS_atoui(word); | |
| 57 word = parser.GetNextWord(&bNumber); | |
| 58 if (!bNumber) { | |
| 59 break; | |
| 60 } | |
| 61 word = parser.GetNextWord(nullptr); | |
| 62 if (word != "obj") { | |
| 63 break; | |
| 64 } | |
| 65 CPDF_Object* pObj = parser.GetObject(this, objnum, 0, true); | |
| 66 if (!pObj) { | |
| 67 break; | |
| 68 } | |
| 69 InsertIndirectObject(objnum, pObj); | |
| 70 word = parser.GetNextWord(nullptr); | |
| 71 if (word != "endobj") { | |
| 72 break; | |
| 73 } | |
| 74 } else { | |
| 75 if (word != "trailer") { | |
| 76 break; | |
| 77 } | |
| 78 if (CPDF_Dictionary* pMainDict = | |
| 79 ToDictionary(parser.GetObject(this, 0, 0, true))) { | |
| 80 m_pRootDict = pMainDict->GetDictBy("Root"); | |
| 81 pMainDict->Release(); | |
| 82 } | |
| 83 break; | |
| 84 } | |
| 85 } | |
| 86 } | |
| 87 FX_BOOL CFDF_Document::WriteBuf(CFX_ByteTextBuf& buf) const { | |
| 88 if (!m_pRootDict) { | |
| 89 return FALSE; | |
| 90 } | |
| 91 buf << "%FDF-1.2\r\n"; | |
| 92 for (const auto& pair : m_IndirectObjs) { | |
| 93 buf << pair.first << " 0 obj\r\n" << pair.second << "\r\nendobj\r\n\r\n"; | |
| 94 } | |
| 95 buf << "trailer\r\n<</Root " << m_pRootDict->GetObjNum() | |
| 96 << " 0 R>>\r\n%%EOF\r\n"; | |
| 97 return TRUE; | |
| 98 } | |
| OLD | NEW |