core/fpdfapi/fpdf_parser/cpdf_standard_security_handler.h - Issue 1898173002: Remove IPDF_CryptoHandler and IPDF_SecurityHandler.

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Issue 1898173002: Remove IPDF_CryptoHandler and IPDF_SecurityHandler. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master

Patch Set: Created 4 years, 8 months ago

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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_CPDF_STANDARD_SECURITY_HANDLER_H_

8 #define CORE_FPDFAPI_FPDF_PARSER_CPDF_STANDARD_SECURITY_HANDLER_H_

9

10 #include "core/fpdfapi/fpdf_parser/ipdf_security_handler.h"

11 #include "core/fxcrt/include/fx_string.h"

12 #include "core/fxcrt/include/fx_system.h"

13

14 class CPDF_Array;

15

16 #define PDF_ENCRYPT_CONTENT 0

17

18 class CPDF_StandardSecurityHandler : public IPDF_SecurityHandler {

19 public:

20 CPDF_StandardSecurityHandler();

21 ~CPDF_StandardSecurityHandler() override;

22

23 // IPDF_SecurityHandler:

24 FX_BOOL OnInit(CPDF_Parser* pParser, CPDF_Dictionary* pEncryptDict) override;

25 uint32_t GetPermissions() override;

26 FX_BOOL GetCryptInfo(int& cipher,

27 const uint8_t*& buffer,

28 int& keylen) override;

29 FX_BOOL IsMetadataEncrypted() override;

30 IPDF_CryptoHandler* CreateCryptoHandler() override;

31

32 void OnCreate(CPDF_Dictionary* pEncryptDict,

33 CPDF_Array* pIdArray,

34 const uint8_t* user_pass,

35 uint32_t user_size,

36 const uint8_t* owner_pass,

37 uint32_t owner_size,

38 uint32_t type = PDF_ENCRYPT_CONTENT);

39

40 void OnCreate(CPDF_Dictionary* pEncryptDict,

41 CPDF_Array* pIdArray,

42 const uint8_t* user_pass,

43 uint32_t user_size,

44 uint32_t type = PDF_ENCRYPT_CONTENT);

45

46 CFX_ByteString GetUserPassword(const uint8_t* owner_pass,

47 uint32_t pass_size,

48 int32_t key_len);

49 int CheckPassword(const uint8_t* password,

50 uint32_t pass_size,

51 FX_BOOL bOwner,

52 uint8_t* key,

53 int key_len);

54

55 private:

56 FX_BOOL LoadDict(CPDF_Dictionary* pEncryptDict);

57 FX_BOOL LoadDict(CPDF_Dictionary* pEncryptDict,

58 uint32_t type,

59 int& cipher,

60 int& key_len);

61

62 FX_BOOL CheckUserPassword(const uint8_t* password,

63 uint32_t pass_size,

64 FX_BOOL bIgnoreEncryptMeta,

65 uint8_t* key,

66 int32_t key_len);

67

68 FX_BOOL CheckOwnerPassword(const uint8_t* password,

69 uint32_t pass_size,

70 uint8_t* key,

71 int32_t key_len);

72 FX_BOOL AES256_CheckPassword(const uint8_t* password,

73 uint32_t size,

74 FX_BOOL bOwner,

75 uint8_t* key);

76 void AES256_SetPassword(CPDF_Dictionary* pEncryptDict,

77 const uint8_t* password,

78 uint32_t size,

79 FX_BOOL bOwner,

80 const uint8_t* key);

81 void AES256_SetPerms(CPDF_Dictionary* pEncryptDict,

82 uint32_t permission,

83 FX_BOOL bEncryptMetadata,

84 const uint8_t* key);

85 void OnCreate(CPDF_Dictionary* pEncryptDict,

86 CPDF_Array* pIdArray,

87 const uint8_t* user_pass,

88 uint32_t user_size,

89 const uint8_t* owner_pass,

90 uint32_t owner_size,

91 FX_BOOL bDefault,

92 uint32_t type);

93 FX_BOOL CheckSecurity(int32_t key_len);

94

95 int m_Version;

96 int m_Revision;

97 CPDF_Parser* m_pParser;

98 CPDF_Dictionary* m_pEncryptDict;

99 uint32_t m_Permissions;

100 int m_Cipher;

101 uint8_t m_EncryptKey[32];

102 int m_KeyLen;

103 };

104

105 #endif // CORE_FPDFAPI_FPDF_PARSER_CPDF_STANDARD_SECURITY_HANDLER_H_

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