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1 // Copyright 2016 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 #ifndef CORE_FPDFAPI_FPDF_PARSER_IPDF_CRYPTO_HANDLER_H_ | |
8 #define CORE_FPDFAPI_FPDF_PARSER_IPDF_CRYPTO_HANDLER_H_ | |
9 | |
10 #include "core/fxcrt/include/fx_basic.h" | |
11 | |
12 class CPDF_Dictionary; | |
13 class IPDF_SecurityHandler; | |
14 | |
15 class IPDF_CryptoHandler { | |
16 public: | |
17 virtual ~IPDF_CryptoHandler(); | |
18 | |
19 virtual FX_BOOL Init(CPDF_Dictionary* pEncryptDict, | |
20 IPDF_SecurityHandler* pSecurityHandler) = 0; | |
21 | |
22 virtual uint32_t DecryptGetSize(uint32_t src_size) = 0; | |
23 virtual void* DecryptStart(uint32_t objnum, uint32_t gennum) = 0; | |
24 virtual FX_BOOL DecryptStream(void* context, | |
25 const uint8_t* src_buf, | |
26 uint32_t src_size, | |
27 CFX_BinaryBuf& dest_buf) = 0; | |
28 | |
29 virtual FX_BOOL DecryptFinish(void* context, CFX_BinaryBuf& dest_buf) = 0; | |
30 virtual uint32_t EncryptGetSize(uint32_t objnum, | |
31 uint32_t version, | |
32 const uint8_t* src_buf, | |
33 uint32_t src_size) = 0; | |
34 | |
35 virtual FX_BOOL EncryptContent(uint32_t objnum, | |
36 uint32_t version, | |
37 const uint8_t* src_buf, | |
38 uint32_t src_size, | |
39 uint8_t* dest_buf, | |
40 uint32_t& dest_size) = 0; | |
41 | |
42 void Decrypt(uint32_t objnum, uint32_t version, CFX_ByteString& str); | |
43 }; | |
44 | |
45 #endif // CORE_FPDFAPI_FPDF_PARSER_IPDF_CRYPTO_HANDLER_H_ | |
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