OLD | NEW |
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/include/cpdf_parser.h" | 7 #include "core/fpdfapi/fpdf_parser/include/cpdf_parser.h" |
8 | 8 |
9 #include <vector> | 9 #include <vector> |
10 | 10 |
11 #include "core/fpdfapi/fpdf_parser/cpdf_standard_security_handler.h" | 11 #include "core/fpdfapi/fpdf_parser/cpdf_crypto_handler.h" |
| 12 #include "core/fpdfapi/fpdf_parser/cpdf_security_handler.h" |
12 #include "core/fpdfapi/fpdf_parser/cpdf_syntax_parser.h" | 13 #include "core/fpdfapi/fpdf_parser/cpdf_syntax_parser.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_document.h" | 17 #include "core/fpdfapi/fpdf_parser/include/cpdf_document.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_stream_acc.h" | 21 #include "core/fpdfapi/fpdf_parser/include/cpdf_stream_acc.h" |
21 #include "core/fpdfapi/fpdf_parser/ipdf_crypto_handler.h" | |
22 #include "core/fxcrt/include/fx_ext.h" | 22 #include "core/fxcrt/include/fx_ext.h" |
23 #include "core/fxcrt/include/fx_safe_types.h" | 23 #include "core/fxcrt/include/fx_safe_types.h" |
24 #include "third_party/base/stl_util.h" | 24 #include "third_party/base/stl_util.h" |
25 | 25 |
26 namespace { | 26 namespace { |
27 | 27 |
28 // A limit on the size of the xref table. Theoretical limits are higher, but | 28 // A limit on the size of the xref table. Theoretical limits are higher, but |
29 // this may be large enough in practice. | 29 // this may be large enough in practice. |
30 const int32_t kMaxXRefSize = 1048576; | 30 const int32_t kMaxXRefSize = 1048576; |
31 | 31 |
(...skipping 62 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
94 | 94 |
95 bool CPDF_Parser::IsObjectFreeOrNull(uint32_t objnum) const { | 95 bool CPDF_Parser::IsObjectFreeOrNull(uint32_t objnum) const { |
96 uint8_t type = GetObjectType(objnum); | 96 uint8_t type = GetObjectType(objnum); |
97 return type == 0 || type == 255; | 97 return type == 0 || type == 255; |
98 } | 98 } |
99 | 99 |
100 void CPDF_Parser::SetEncryptDictionary(CPDF_Dictionary* pDict) { | 100 void CPDF_Parser::SetEncryptDictionary(CPDF_Dictionary* pDict) { |
101 m_pEncryptDict = pDict; | 101 m_pEncryptDict = pDict; |
102 } | 102 } |
103 | 103 |
104 IPDF_CryptoHandler* CPDF_Parser::GetCryptoHandler() { | 104 CPDF_CryptoHandler* CPDF_Parser::GetCryptoHandler() { |
105 return m_pSyntax->m_pCryptoHandler.get(); | 105 return m_pSyntax->m_pCryptoHandler.get(); |
106 } | 106 } |
107 | 107 |
108 IFX_FileRead* CPDF_Parser::GetFileAccess() const { | 108 IFX_FileRead* CPDF_Parser::GetFileAccess() const { |
109 return m_pSyntax->m_pFileAccess; | 109 return m_pSyntax->m_pFileAccess; |
110 } | 110 } |
111 | 111 |
112 void CPDF_Parser::ShrinkObjectMap(uint32_t objnum) { | 112 void CPDF_Parser::ShrinkObjectMap(uint32_t objnum) { |
113 if (objnum == 0) { | 113 if (objnum == 0) { |
114 m_ObjectInfo.clear(); | 114 m_ObjectInfo.clear(); |
(...skipping 153 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
268 SetEncryptDictionary(pEncryptDict); | 268 SetEncryptDictionary(pEncryptDict); |
269 } else if (CPDF_Reference* pRef = pEncryptObj->AsReference()) { | 269 } else if (CPDF_Reference* pRef = pEncryptObj->AsReference()) { |
270 pEncryptObj = m_pDocument->GetIndirectObject(pRef->GetRefObjNum()); | 270 pEncryptObj = m_pDocument->GetIndirectObject(pRef->GetRefObjNum()); |
271 if (pEncryptObj) | 271 if (pEncryptObj) |
272 SetEncryptDictionary(pEncryptObj->GetDict()); | 272 SetEncryptDictionary(pEncryptObj->GetDict()); |
273 } | 273 } |
274 } | 274 } |
275 | 275 |
276 if (m_pEncryptDict) { | 276 if (m_pEncryptDict) { |
277 CFX_ByteString filter = m_pEncryptDict->GetStringBy("Filter"); | 277 CFX_ByteString filter = m_pEncryptDict->GetStringBy("Filter"); |
278 std::unique_ptr<IPDF_SecurityHandler> pSecurityHandler; | 278 std::unique_ptr<CPDF_SecurityHandler> pSecurityHandler; |
279 Error err = HANDLER_ERROR; | 279 Error err = HANDLER_ERROR; |
280 if (filter == "Standard") { | 280 if (filter == "Standard") { |
281 pSecurityHandler.reset(new CPDF_StandardSecurityHandler); | 281 pSecurityHandler.reset(new CPDF_SecurityHandler); |
282 err = PASSWORD_ERROR; | 282 err = PASSWORD_ERROR; |
283 } | 283 } |
284 if (!pSecurityHandler) | 284 if (!pSecurityHandler) |
285 return HANDLER_ERROR; | 285 return HANDLER_ERROR; |
286 | 286 |
287 if (!pSecurityHandler->OnInit(this, m_pEncryptDict)) | 287 if (!pSecurityHandler->OnInit(this, m_pEncryptDict)) |
288 return err; | 288 return err; |
289 | 289 |
290 m_pSecurityHandler = std::move(pSecurityHandler); | 290 m_pSecurityHandler = std::move(pSecurityHandler); |
291 std::unique_ptr<IPDF_CryptoHandler> pCryptoHandler( | 291 std::unique_ptr<CPDF_CryptoHandler> pCryptoHandler( |
292 m_pSecurityHandler->CreateCryptoHandler()); | 292 m_pSecurityHandler->CreateCryptoHandler()); |
293 if (!pCryptoHandler->Init(m_pEncryptDict, m_pSecurityHandler.get())) | 293 if (!pCryptoHandler->Init(m_pEncryptDict, m_pSecurityHandler.get())) |
294 return HANDLER_ERROR; | 294 return HANDLER_ERROR; |
295 m_pSyntax->SetEncrypt(std::move(pCryptoHandler)); | 295 m_pSyntax->SetEncrypt(std::move(pCryptoHandler)); |
296 } | 296 } |
297 return SUCCESS; | 297 return SUCCESS; |
298 } | 298 } |
299 | 299 |
300 void CPDF_Parser::ReleaseEncryptHandler() { | 300 void CPDF_Parser::ReleaseEncryptHandler() { |
301 m_pSyntax->m_pCryptoHandler.reset(); | 301 m_pSyntax->m_pCryptoHandler.reset(); |
(...skipping 1340 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
1642 if (!LoadLinearizedAllCrossRefV4(m_LastXRefOffset, m_dwXrefStartObjNum) && | 1642 if (!LoadLinearizedAllCrossRefV4(m_LastXRefOffset, m_dwXrefStartObjNum) && |
1643 !LoadLinearizedAllCrossRefV5(m_LastXRefOffset)) { | 1643 !LoadLinearizedAllCrossRefV5(m_LastXRefOffset)) { |
1644 m_LastXRefOffset = 0; | 1644 m_LastXRefOffset = 0; |
1645 m_pSyntax->m_MetadataObjnum = dwSaveMetadataObjnum; | 1645 m_pSyntax->m_MetadataObjnum = dwSaveMetadataObjnum; |
1646 return FORMAT_ERROR; | 1646 return FORMAT_ERROR; |
1647 } | 1647 } |
1648 | 1648 |
1649 m_pSyntax->m_MetadataObjnum = dwSaveMetadataObjnum; | 1649 m_pSyntax->m_MetadataObjnum = dwSaveMetadataObjnum; |
1650 return SUCCESS; | 1650 return SUCCESS; |
1651 } | 1651 } |
OLD | NEW |