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1 // Copyright 2016 PDFium Authors. All rights reserved. | 1 // Copyright 2016 PDFium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
6 | 6 |
7 #include "core/fpdfapi/fpdf_parser/cpdf_syntax_parser.h" | 7 #include "core/fpdfapi/fpdf_parser/cpdf_syntax_parser.h" |
8 | 8 |
9 #include <vector> | 9 #include <vector> |
10 | 10 |
11 #include "core/fpdfapi/fpdf_parser/cpdf_boolean.h" | 11 #include "core/fpdfapi/fpdf_parser/cpdf_boolean.h" |
| 12 #include "core/fpdfapi/fpdf_parser/cpdf_crypto_handler.h" |
12 #include "core/fpdfapi/fpdf_parser/cpdf_null.h" | 13 #include "core/fpdfapi/fpdf_parser/cpdf_null.h" |
13 #include "core/fpdfapi/fpdf_parser/fpdf_parser_utility.h" | 14 #include "core/fpdfapi/fpdf_parser/fpdf_parser_utility.h" |
14 #include "core/fpdfapi/fpdf_parser/include/cpdf_array.h" | 15 #include "core/fpdfapi/fpdf_parser/include/cpdf_array.h" |
15 #include "core/fpdfapi/fpdf_parser/include/cpdf_dictionary.h" | 16 #include "core/fpdfapi/fpdf_parser/include/cpdf_dictionary.h" |
16 #include "core/fpdfapi/fpdf_parser/include/cpdf_name.h" | 17 #include "core/fpdfapi/fpdf_parser/include/cpdf_name.h" |
17 #include "core/fpdfapi/fpdf_parser/include/cpdf_number.h" | 18 #include "core/fpdfapi/fpdf_parser/include/cpdf_number.h" |
18 #include "core/fpdfapi/fpdf_parser/include/cpdf_reference.h" | 19 #include "core/fpdfapi/fpdf_parser/include/cpdf_reference.h" |
19 #include "core/fpdfapi/fpdf_parser/include/cpdf_stream.h" | 20 #include "core/fpdfapi/fpdf_parser/include/cpdf_stream.h" |
20 #include "core/fpdfapi/fpdf_parser/include/cpdf_string.h" | 21 #include "core/fpdfapi/fpdf_parser/include/cpdf_string.h" |
21 #include "core/fpdfapi/fpdf_parser/include/fpdf_parser_decode.h" | 22 #include "core/fpdfapi/fpdf_parser/include/fpdf_parser_decode.h" |
22 #include "core/fpdfapi/fpdf_parser/ipdf_crypto_handler.h" | |
23 #include "core/fpdfapi/include/cpdf_modulemgr.h" | 23 #include "core/fpdfapi/include/cpdf_modulemgr.h" |
24 #include "core/fxcrt/include/fx_ext.h" | 24 #include "core/fxcrt/include/fx_ext.h" |
25 #include "third_party/base/numerics/safe_math.h" | 25 #include "third_party/base/numerics/safe_math.h" |
26 | 26 |
27 namespace { | 27 namespace { |
28 | 28 |
29 struct SearchTagRecord { | 29 struct SearchTagRecord { |
30 const char* m_pTag; | 30 const char* m_pTag; |
31 uint32_t m_Len; | 31 uint32_t m_Len; |
32 uint32_t m_Offset; | 32 uint32_t m_Offset; |
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639 if (pLenObj && differingObjNum) | 639 if (pLenObj && differingObjNum) |
640 len = pLenObj->GetInteger(); | 640 len = pLenObj->GetInteger(); |
641 | 641 |
642 // Locate the start of stream. | 642 // Locate the start of stream. |
643 ToNextLine(); | 643 ToNextLine(); |
644 FX_FILESIZE streamStartPos = m_Pos; | 644 FX_FILESIZE streamStartPos = m_Pos; |
645 | 645 |
646 const CFX_ByteStringC kEndStreamStr("endstream"); | 646 const CFX_ByteStringC kEndStreamStr("endstream"); |
647 const CFX_ByteStringC kEndObjStr("endobj"); | 647 const CFX_ByteStringC kEndObjStr("endobj"); |
648 | 648 |
649 IPDF_CryptoHandler* pCryptoHandler = | 649 CPDF_CryptoHandler* pCryptoHandler = |
650 objnum == (uint32_t)m_MetadataObjnum ? nullptr : m_pCryptoHandler.get(); | 650 objnum == (uint32_t)m_MetadataObjnum ? nullptr : m_pCryptoHandler.get(); |
651 if (!pCryptoHandler) { | 651 if (!pCryptoHandler) { |
652 FX_BOOL bSearchForKeyword = TRUE; | 652 FX_BOOL bSearchForKeyword = TRUE; |
653 if (len >= 0) { | 653 if (len >= 0) { |
654 pdfium::base::CheckedNumeric<FX_FILESIZE> pos = m_Pos; | 654 pdfium::base::CheckedNumeric<FX_FILESIZE> pos = m_Pos; |
655 pos += len; | 655 pos += len; |
656 if (pos.IsValid() && pos.ValueOrDie() < m_FileLen) | 656 if (pos.IsValid() && pos.ValueOrDie() < m_FileLen) |
657 m_Pos = pos.ValueOrDie(); | 657 m_Pos = pos.ValueOrDie(); |
658 | 658 |
659 m_Pos += ReadEOLMarkers(m_Pos); | 659 m_Pos += ReadEOLMarkers(m_Pos); |
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978 match = ch == tag[0] ? 1 : 0; | 978 match = ch == tag[0] ? 1 : 0; |
979 } | 979 } |
980 | 980 |
981 if (limit && m_Pos == limit) | 981 if (limit && m_Pos == limit) |
982 return -1; | 982 return -1; |
983 } | 983 } |
984 return -1; | 984 return -1; |
985 } | 985 } |
986 | 986 |
987 void CPDF_SyntaxParser::SetEncrypt( | 987 void CPDF_SyntaxParser::SetEncrypt( |
988 std::unique_ptr<IPDF_CryptoHandler> pCryptoHandler) { | 988 std::unique_ptr<CPDF_CryptoHandler> pCryptoHandler) { |
989 m_pCryptoHandler = std::move(pCryptoHandler); | 989 m_pCryptoHandler = std::move(pCryptoHandler); |
990 } | 990 } |
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