| // Copyright 2014 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #ifndef CORE_INCLUDE_FPDFAPI_FPDF_PARSER_H_ |
| #define CORE_INCLUDE_FPDFAPI_FPDF_PARSER_H_ |
| |
| #include <map> |
| #include <memory> |
| |
| #include "core/include/fxcrt/fx_system.h" |
| #include "fpdf_objects.h" |
| |
| class CFDF_Document; |
| class CFDF_Parser; |
| class CFX_DIBSource; |
| class CFX_FloatRect; |
| class CFX_Font; |
| class CFX_Matrix; |
| class CFX_PrivateData; |
| class CPDF_ColorSpace; |
| class CPDF_CryptoHandler; |
| class CPDF_DocPageData; |
| class CPDF_DocRenderData; |
| class CPDF_Document; |
| class CPDF_Font; |
| class CPDF_FontEncoding; |
| class CPDF_HintTables; |
| class CPDF_IccProfile; |
| class CPDF_Image; |
| class CPDF_ModuleMgr; |
| class CPDF_Object; |
| class CPDF_Parser; |
| class CPDF_Pattern; |
| class CPDF_Point; |
| class CPDF_SecurityHandler; |
| class CPDF_StandardSecurityHandler; |
| class IFX_FileRead; |
| |
| #define FPDFPERM_PRINT 0x0004 |
| #define FPDFPERM_MODIFY 0x0008 |
| #define FPDFPERM_EXTRACT 0x0010 |
| #define FPDFPERM_ANNOT_FORM 0x0020 |
| #define FPDFPERM_FILL_FORM 0x0100 |
| #define FPDFPERM_EXTRACT_ACCESS 0x0200 |
| #define FPDFPERM_ASSEMBLE 0x0400 |
| #define FPDFPERM_PRINT_HIGH 0x0800 |
| #define FPDF_PAGE_MAX_NUM 0xFFFFF |
| |
| // Use the accessors below instead of directly accessing PDF_CharType. |
| extern const char PDF_CharType[256]; |
| |
| inline bool PDFCharIsWhitespace(uint8_t c) { |
| return PDF_CharType[c] == 'W'; |
| } |
| inline bool PDFCharIsNumeric(uint8_t c) { |
| return PDF_CharType[c] == 'N'; |
| } |
| inline bool PDFCharIsDelimiter(uint8_t c) { |
| return PDF_CharType[c] == 'D'; |
| } |
| inline bool PDFCharIsOther(uint8_t c) { |
| return PDF_CharType[c] == 'R'; |
| } |
| |
| inline bool PDFCharIsLineEnding(uint8_t c) { |
| return c == '\r' || c == '\n'; |
| } |
| |
| // Indexed by 8-bit char code, contains unicode code points. |
| extern const FX_WORD PDFDocEncoding[256]; |
| |
| class CPDF_Document : public CFX_PrivateData, public CPDF_IndirectObjects { |
| public: |
| CPDF_Document(); |
| explicit CPDF_Document(CPDF_Parser* pParser); |
| |
| ~CPDF_Document(); |
| |
| CPDF_Parser* GetParser() const { return m_pParser; } |
| |
| CPDF_Dictionary* GetRoot() const { return m_pRootDict; } |
| |
| CPDF_Dictionary* GetInfo() const { return m_pInfoDict; } |
| |
| void GetID(CFX_ByteString& id1, CFX_ByteString& id2) const { |
| id1 = m_ID1; |
| id2 = m_ID2; |
| } |
| |
| int GetPageCount() const; |
| |
| CPDF_Dictionary* GetPage(int iPage); |
| |
| int GetPageIndex(FX_DWORD objnum); |
| |
| FX_DWORD GetUserPermissions(FX_BOOL bCheckRevision = FALSE) const; |
| |
| FX_BOOL IsOwner() const; |
| |
| CPDF_DocPageData* GetPageData() { return GetValidatePageData(); } |
| |
| void ClearPageData(); |
| |
| void RemoveColorSpaceFromPageData(CPDF_Object* pObject); |
| |
| CPDF_DocRenderData* GetRenderData() { return GetValidateRenderData(); } |
| |
| void ClearRenderData(); |
| |
| void ClearRenderFont(); |
| |
| FX_BOOL IsFormStream(FX_DWORD objnum, FX_BOOL& bForm) const; |
| |
| // |pFontDict| must not be null. |
| CPDF_Font* LoadFont(CPDF_Dictionary* pFontDict); |
| |
| CPDF_ColorSpace* LoadColorSpace(CPDF_Object* pCSObj, |
| CPDF_Dictionary* pResources = NULL); |
| |
| CPDF_Pattern* LoadPattern(CPDF_Object* pObj, |
| FX_BOOL bShading, |
| const CFX_Matrix* matrix = NULL); |
| |
| CPDF_Image* LoadImageF(CPDF_Object* pObj); |
| |
| CPDF_StreamAcc* LoadFontFile(CPDF_Stream* pStream); |
| |
| CPDF_IccProfile* LoadIccProfile(CPDF_Stream* pStream); |
| |
| #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ |
| |
| CPDF_Font* AddWindowsFont(LOGFONTA* pLogFont, |
| FX_BOOL bVert, |
| FX_BOOL bTranslateName = FALSE); |
| CPDF_Font* AddWindowsFont(LOGFONTW* pLogFont, |
| FX_BOOL bVert, |
| FX_BOOL bTranslateName = FALSE); |
| #endif |
| #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ |
| CPDF_Font* AddMacFont(CTFontRef pFont, |
| FX_BOOL bVert, |
| FX_BOOL bTranslateName = FALSE); |
| #endif |
| |
| CPDF_Font* AddStandardFont(const FX_CHAR* font, CPDF_FontEncoding* pEncoding); |
| |
| CPDF_Font* AddFont(CFX_Font* pFont, int charset, FX_BOOL bVert); |
| |
| void CreateNewDoc(); |
| |
| CPDF_Dictionary* CreateNewPage(int iPage); |
| |
| void DeletePage(int iPage); |
| |
| void LoadDoc(); |
| void LoadAsynDoc(CPDF_Dictionary* pLinearized); |
| void LoadPages(); |
| |
| protected: |
| CPDF_Dictionary* m_pRootDict; |
| |
| CPDF_Dictionary* m_pInfoDict; |
| |
| CFX_ByteString m_ID1; |
| |
| CFX_ByteString m_ID2; |
| |
| FX_BOOL m_bLinearized; |
| |
| FX_DWORD m_dwFirstPageNo; |
| |
| FX_DWORD m_dwFirstPageObjNum; |
| |
| CFX_DWordArray m_PageList; |
| |
| int _GetPageCount() const; |
| CPDF_Dictionary* _FindPDFPage(CPDF_Dictionary* pPages, |
| int iPage, |
| int nPagesToGo, |
| int level); |
| int _FindPageIndex(CPDF_Dictionary* pNode, |
| FX_DWORD& skip_count, |
| FX_DWORD objnum, |
| int& index, |
| int level = 0); |
| FX_BOOL IsContentUsedElsewhere(FX_DWORD objnum, CPDF_Dictionary* pPageDict); |
| FX_BOOL CheckOCGVisible(CPDF_Dictionary* pOCG, FX_BOOL bPrinting); |
| CPDF_DocPageData* GetValidatePageData(); |
| CPDF_DocRenderData* GetValidateRenderData(); |
| friend class CPDF_Creator; |
| friend class CPDF_Parser; |
| friend class CPDF_DataAvail; |
| friend class CPDF_OCContext; |
| |
| CPDF_DocPageData* m_pDocPage; |
| |
| CPDF_DocRenderData* m_pDocRender; |
| }; |
| |
| #define PDFWORD_EOF 0 |
| #define PDFWORD_NUMBER 1 |
| #define PDFWORD_TEXT 2 |
| #define PDFWORD_DELIMITER 3 |
| #define PDFWORD_NAME 4 |
| class CPDF_SimpleParser { |
| public: |
| CPDF_SimpleParser(const uint8_t* pData, FX_DWORD dwSize); |
| |
| CPDF_SimpleParser(const CFX_ByteStringC& str); |
| |
| CFX_ByteStringC GetWord(); |
| |
| FX_BOOL SearchToken(const CFX_ByteStringC& token); |
| |
| FX_BOOL SkipWord(const CFX_ByteStringC& token); |
| |
| FX_BOOL FindTagPair(const CFX_ByteStringC& start_token, |
| const CFX_ByteStringC& end_token, |
| FX_DWORD& start_pos, |
| FX_DWORD& end_pos); |
| |
| FX_BOOL FindTagParam(const CFX_ByteStringC& token, int nParams); |
| |
| FX_DWORD GetPos() { return m_dwCurPos; } |
| |
| void SetPos(FX_DWORD pos) { |
| ASSERT(pos <= m_dwSize); |
| m_dwCurPos = pos; |
| } |
| |
| private: |
| void ParseWord(const uint8_t*& pStart, FX_DWORD& dwSize, int& type); |
| |
| const uint8_t* m_pData; |
| |
| FX_DWORD m_dwSize; |
| |
| FX_DWORD m_dwCurPos; |
| }; |
| class CPDF_SyntaxParser { |
| public: |
| CPDF_SyntaxParser(); |
| virtual ~CPDF_SyntaxParser(); |
| |
| void InitParser(IFX_FileRead* pFileAccess, FX_DWORD HeaderOffset); |
| |
| FX_FILESIZE SavePos() { return m_Pos; } |
| |
| void RestorePos(FX_FILESIZE pos) { m_Pos = pos; } |
| |
| CPDF_Object* GetObject(CPDF_IndirectObjects* pObjList, |
| FX_DWORD objnum, |
| FX_DWORD gennum, |
| struct PARSE_CONTEXT* pContext = NULL, |
| FX_BOOL bDecrypt = TRUE); |
| |
| CPDF_Object* GetObjectByStrict(CPDF_IndirectObjects* pObjList, |
| FX_DWORD objnum, |
| FX_DWORD gennum, |
| struct PARSE_CONTEXT* pContext = NULL); |
| |
| int GetDirectNum(); |
| |
| CFX_ByteString GetString(FX_DWORD objnum, FX_DWORD gennum); |
| |
| CFX_ByteString GetName(); |
| |
| CFX_ByteString GetKeyword(); |
| |
| void GetBinary(uint8_t* buffer, FX_DWORD size); |
| |
| void ToNextLine(); |
| |
| void ToNextWord(); |
| |
| FX_BOOL SearchWord(const CFX_ByteStringC& word, |
| FX_BOOL bWholeWord, |
| FX_BOOL bForward, |
| FX_FILESIZE limit); |
| |
| int SearchMultiWord(const CFX_ByteStringC& words, |
| FX_BOOL bWholeWord, |
| FX_FILESIZE limit); |
| |
| FX_FILESIZE FindTag(const CFX_ByteStringC& tag, FX_FILESIZE limit); |
| |
| void SetEncrypt(CPDF_CryptoHandler* pCryptoHandler) { |
| m_pCryptoHandler.reset(pCryptoHandler); |
| } |
| |
| FX_BOOL IsEncrypted() { return m_pCryptoHandler != NULL; } |
| |
| FX_BOOL GetCharAt(FX_FILESIZE pos, uint8_t& ch); |
| |
| FX_BOOL ReadBlock(uint8_t* pBuf, FX_DWORD size); |
| |
| CFX_ByteString GetNextWord(FX_BOOL& bIsNumber); |
| |
| protected: |
| friend class CPDF_Parser; |
| friend class CPDF_DataAvail; |
| friend class fpdf_parser_parser_ReadHexString_Test; |
| |
| static const int kParserMaxRecursionDepth = 64; |
| static int s_CurrentRecursionDepth; |
| |
| virtual FX_BOOL GetNextChar(uint8_t& ch); |
| |
| FX_BOOL GetCharAtBackward(FX_FILESIZE pos, uint8_t& ch); |
| |
| void GetNextWord(); |
| |
| bool IsWholeWord(FX_FILESIZE startpos, |
| FX_FILESIZE limit, |
| const CFX_ByteStringC& tag, |
| FX_BOOL checkKeyword); |
| |
| CFX_ByteString ReadString(); |
| |
| CFX_ByteString ReadHexString(); |
| |
| unsigned int ReadEOLMarkers(FX_FILESIZE pos); |
| |
| CPDF_Stream* ReadStream(CPDF_Dictionary* pDict, |
| PARSE_CONTEXT* pContext, |
| FX_DWORD objnum, |
| FX_DWORD gennum); |
| |
| FX_FILESIZE m_Pos; |
| |
| FX_BOOL m_bFileStream; |
| |
| int m_MetadataObjnum; |
| |
| IFX_FileRead* m_pFileAccess; |
| |
| FX_DWORD m_HeaderOffset; |
| |
| FX_FILESIZE m_FileLen; |
| |
| uint8_t* m_pFileBuf; |
| |
| FX_DWORD m_BufSize; |
| |
| FX_FILESIZE m_BufOffset; |
| |
| std::unique_ptr<CPDF_CryptoHandler> m_pCryptoHandler; |
| |
| uint8_t m_WordBuffer[257]; |
| |
| FX_DWORD m_WordSize; |
| |
| FX_BOOL m_bIsNumber; |
| |
| FX_FILESIZE m_dwWordPos; |
| }; |
| |
| #define PDFPARSE_TYPEONLY 1 |
| #define PDFPARSE_NOSTREAM 2 |
| struct PARSE_CONTEXT { |
| uint32_t m_Flags; |
| FX_FILESIZE m_DictStart; |
| FX_FILESIZE m_DictEnd; |
| FX_FILESIZE m_DataStart; |
| FX_FILESIZE m_DataEnd; |
| }; |
| |
| #define PDFPARSE_ERROR_SUCCESS 0 |
| #define PDFPARSE_ERROR_FILE 1 |
| #define PDFPARSE_ERROR_FORMAT 2 |
| #define PDFPARSE_ERROR_PASSWORD 3 |
| #define PDFPARSE_ERROR_HANDLER 4 |
| #define PDFPARSE_ERROR_CERT 5 |
| |
| class CPDF_Parser { |
| public: |
| CPDF_Parser(); |
| ~CPDF_Parser(); |
| |
| FX_DWORD StartParse(IFX_FileRead* pFile, |
| FX_BOOL bReParse = FALSE, |
| FX_BOOL bOwnFileRead = TRUE); |
| |
| void CloseParser(FX_BOOL bReParse = FALSE); |
| |
| FX_DWORD GetPermissions(FX_BOOL bCheckRevision = FALSE); |
| |
| FX_BOOL IsOwner(); |
| |
| void SetPassword(const FX_CHAR* password) { m_Password = password; } |
| |
| CFX_ByteString GetPassword() { return m_Password; } |
| |
| CPDF_CryptoHandler* GetCryptoHandler() { |
| return m_Syntax.m_pCryptoHandler.get(); |
| } |
| |
| void SetSecurityHandler(CPDF_SecurityHandler* pSecurityHandler, |
| FX_BOOL bForced = FALSE); |
| |
| CPDF_Dictionary* GetTrailer() { return m_pTrailer; } |
| |
| FX_FILESIZE GetLastXRefOffset() { return m_LastXRefOffset; } |
| |
| CPDF_Document* GetDocument() { return m_pDocument; } |
| |
| FX_DWORD GetRootObjNum(); |
| FX_DWORD GetInfoObjNum(); |
| CPDF_Array* GetIDArray(); |
| |
| CPDF_Dictionary* GetEncryptDict() { return m_pEncryptDict; } |
| |
| CPDF_Object* ParseIndirectObject(CPDF_IndirectObjects* pObjList, |
| FX_DWORD objnum, |
| PARSE_CONTEXT* pContext = NULL); |
| FX_DWORD GetLastObjNum() const; |
| bool IsValidObjectNumber(FX_DWORD objnum) const; |
| FX_BOOL IsFormStream(FX_DWORD objnum, FX_BOOL& bForm); |
| |
| FX_FILESIZE GetObjectOffset(FX_DWORD objnum); |
| |
| FX_FILESIZE GetObjectSize(FX_DWORD objnum); |
| |
| void GetIndirectBinary(FX_DWORD objnum, uint8_t*& pBuffer, FX_DWORD& size); |
| |
| IFX_FileRead* GetFileAccess() const { return m_Syntax.m_pFileAccess; } |
| |
| int GetFileVersion() const { return m_FileVersion; } |
| |
| FX_BOOL IsXRefStream() const { return m_bXRefStream; } |
| CPDF_Object* ParseIndirectObjectAt(CPDF_IndirectObjects* pObjList, |
| FX_FILESIZE pos, |
| FX_DWORD objnum, |
| struct PARSE_CONTEXT* pContext); |
| |
| CPDF_Object* ParseIndirectObjectAtByStrict(CPDF_IndirectObjects* pObjList, |
| FX_FILESIZE pos, |
| FX_DWORD objnum, |
| struct PARSE_CONTEXT* pContext, |
| FX_FILESIZE* pResultPos); |
| |
| FX_DWORD StartAsynParse(IFX_FileRead* pFile, |
| FX_BOOL bReParse = FALSE, |
| FX_BOOL bOwnFileRead = TRUE); |
| |
| FX_DWORD GetFirstPageNo() { return m_dwFirstPageNo; } |
| |
| protected: |
| CPDF_Document* m_pDocument; |
| |
| CPDF_SyntaxParser m_Syntax; |
| FX_BOOL m_bOwnFileRead; |
| CPDF_Object* ParseDirect(CPDF_Object* pObj); |
| |
| FX_BOOL LoadAllCrossRefV4(FX_FILESIZE pos); |
| |
| FX_BOOL LoadAllCrossRefV5(FX_FILESIZE pos); |
| |
| bool LoadCrossRefV4(FX_FILESIZE pos, FX_FILESIZE streampos, FX_BOOL bSkip); |
| |
| FX_BOOL LoadCrossRefV5(FX_FILESIZE* pos, FX_BOOL bMainXRef); |
| |
| CPDF_Dictionary* LoadTrailerV4(); |
| |
| FX_BOOL RebuildCrossRef(); |
| |
| FX_DWORD SetEncryptHandler(); |
| |
| void ReleaseEncryptHandler(); |
| |
| FX_BOOL LoadLinearizedAllCrossRefV4(FX_FILESIZE pos, FX_DWORD dwObjCount); |
| |
| FX_BOOL LoadLinearizedCrossRefV4(FX_FILESIZE pos, FX_DWORD dwObjCount); |
| |
| FX_BOOL LoadLinearizedAllCrossRefV5(FX_FILESIZE pos); |
| |
| FX_DWORD LoadLinearizedMainXRefTable(); |
| |
| CPDF_StreamAcc* GetObjectStream(FX_DWORD number); |
| |
| FX_BOOL IsLinearizedFile(IFX_FileRead* pFileAccess, FX_DWORD offset); |
| |
| bool FindPosInOffsets(FX_FILESIZE pos) const; |
| |
| int m_FileVersion; |
| |
| CPDF_Dictionary* m_pTrailer; |
| |
| CPDF_Dictionary* m_pEncryptDict; |
| void SetEncryptDictionary(CPDF_Dictionary* pDict); |
| |
| FX_FILESIZE m_LastXRefOffset; |
| |
| FX_BOOL m_bXRefStream; |
| |
| std::unique_ptr<CPDF_SecurityHandler> m_pSecurityHandler; |
| |
| FX_BOOL m_bForceUseSecurityHandler; |
| |
| CFX_ByteString m_bsRecipient; |
| |
| CFX_ByteString m_FilePath; |
| |
| CFX_ByteString m_Password; |
| |
| struct ObjectInfo { |
| ObjectInfo() : pos(0) {} |
| |
| FX_FILESIZE pos; |
| // TODO(thestig): Use fields below in place of |m_V5Type| and |m_ObjVersion| |
| #if 0 |
| uint8_t type; |
| uint16_t gennum; |
| #endif |
| }; |
| std::map<FX_DWORD, ObjectInfo> m_ObjectInfo; |
| |
| CFX_ByteArray m_V5Type; |
| CFX_WordArray m_ObjVersion; |
| |
| CFX_FileSizeArray m_SortedOffset; |
| |
| CFX_ArrayTemplate<CPDF_Dictionary*> m_Trailers; |
| |
| FX_BOOL m_bVersionUpdated; |
| |
| CPDF_Object* m_pLinearized; |
| |
| FX_DWORD m_dwFirstPageNo; |
| |
| FX_DWORD m_dwXrefStartObjNum; |
| |
| // A map of object numbers to indirect streams. Map owns the streams. |
| CFX_MapPtrToPtr m_ObjectStreamMap; |
| |
| // Mapping of object numbers to offsets. The offsets are relative to the first |
| // object in the stream. |
| using StreamObjectCache = std::map<FX_DWORD, FX_DWORD>; |
| |
| // Mapping of streams to their object caches. This is valid as long as the |
| // streams in |m_ObjectStreamMap| are valid. |
| std::map<CPDF_StreamAcc*, StreamObjectCache> m_ObjCache; |
| |
| friend class CPDF_Creator; |
| friend class CPDF_DataAvail; |
| }; |
| |
| #define FXCIPHER_NONE 0 |
| #define FXCIPHER_RC4 1 |
| #define FXCIPHER_AES 2 |
| #define FXCIPHER_AES2 3 |
| class CPDF_SecurityHandler { |
| public: |
| virtual ~CPDF_SecurityHandler() {} |
| |
| virtual FX_BOOL OnInit(CPDF_Parser* pParser, |
| CPDF_Dictionary* pEncryptDict) = 0; |
| |
| virtual FX_DWORD GetPermissions() = 0; |
| |
| virtual FX_BOOL IsOwner() = 0; |
| |
| virtual FX_BOOL GetCryptInfo(int& cipher, |
| const uint8_t*& buffer, |
| int& keylen) = 0; |
| |
| virtual FX_BOOL IsMetadataEncrypted() { return TRUE; } |
| |
| virtual CPDF_CryptoHandler* CreateCryptoHandler() = 0; |
| |
| virtual CPDF_StandardSecurityHandler* GetStandardHandler() { return NULL; } |
| }; |
| #define PDF_ENCRYPT_CONTENT 0 |
| class CPDF_StandardSecurityHandler : public CPDF_SecurityHandler { |
| public: |
| CPDF_StandardSecurityHandler(); |
| ~CPDF_StandardSecurityHandler() override; |
| |
| // CPDF_SecurityHandler |
| FX_BOOL OnInit(CPDF_Parser* pParser, CPDF_Dictionary* pEncryptDict) override; |
| FX_DWORD GetPermissions() override; |
| FX_BOOL IsOwner() override { return m_bOwner; } |
| FX_BOOL GetCryptInfo(int& cipher, |
| const uint8_t*& buffer, |
| int& keylen) override; |
| FX_BOOL IsMetadataEncrypted() override; |
| CPDF_CryptoHandler* CreateCryptoHandler() override; |
| CPDF_StandardSecurityHandler* GetStandardHandler() override { return this; } |
| |
| void OnCreate(CPDF_Dictionary* pEncryptDict, |
| CPDF_Array* pIdArray, |
| const uint8_t* user_pass, |
| FX_DWORD user_size, |
| const uint8_t* owner_pass, |
| FX_DWORD owner_size, |
| FX_DWORD type = PDF_ENCRYPT_CONTENT); |
| |
| void OnCreate(CPDF_Dictionary* pEncryptDict, |
| CPDF_Array* pIdArray, |
| const uint8_t* user_pass, |
| FX_DWORD user_size, |
| FX_DWORD type = PDF_ENCRYPT_CONTENT); |
| |
| CFX_ByteString GetUserPassword(const uint8_t* owner_pass, FX_DWORD pass_size); |
| CFX_ByteString GetUserPassword(const uint8_t* owner_pass, |
| FX_DWORD pass_size, |
| int32_t key_len); |
| int GetVersion() { return m_Version; } |
| int GetRevision() { return m_Revision; } |
| |
| int CheckPassword(const uint8_t* password, |
| FX_DWORD pass_size, |
| FX_BOOL bOwner, |
| uint8_t* key); |
| int CheckPassword(const uint8_t* password, |
| FX_DWORD pass_size, |
| FX_BOOL bOwner, |
| uint8_t* key, |
| int key_len); |
| |
| private: |
| int m_Version; |
| |
| int m_Revision; |
| |
| CPDF_Parser* m_pParser; |
| |
| CPDF_Dictionary* m_pEncryptDict; |
| |
| FX_BOOL LoadDict(CPDF_Dictionary* pEncryptDict); |
| FX_BOOL LoadDict(CPDF_Dictionary* pEncryptDict, |
| FX_DWORD type, |
| int& cipher, |
| int& key_len); |
| |
| FX_BOOL CheckUserPassword(const uint8_t* password, |
| FX_DWORD pass_size, |
| FX_BOOL bIgnoreEncryptMeta, |
| uint8_t* key, |
| int32_t key_len); |
| |
| FX_BOOL CheckOwnerPassword(const uint8_t* password, |
| FX_DWORD pass_size, |
| uint8_t* key, |
| int32_t key_len); |
| FX_BOOL AES256_CheckPassword(const uint8_t* password, |
| FX_DWORD size, |
| FX_BOOL bOwner, |
| uint8_t* key); |
| void AES256_SetPassword(CPDF_Dictionary* pEncryptDict, |
| const uint8_t* password, |
| FX_DWORD size, |
| FX_BOOL bOwner, |
| const uint8_t* key); |
| void AES256_SetPerms(CPDF_Dictionary* pEncryptDict, |
| FX_DWORD permission, |
| FX_BOOL bEncryptMetadata, |
| const uint8_t* key); |
| void OnCreate(CPDF_Dictionary* pEncryptDict, |
| CPDF_Array* pIdArray, |
| const uint8_t* user_pass, |
| FX_DWORD user_size, |
| const uint8_t* owner_pass, |
| FX_DWORD owner_size, |
| FX_BOOL bDefault, |
| FX_DWORD type); |
| FX_BOOL CheckSecurity(int32_t key_len); |
| |
| FX_BOOL m_bOwner; |
| |
| FX_DWORD m_Permissions; |
| |
| int m_Cipher; |
| |
| uint8_t m_EncryptKey[32]; |
| |
| int m_KeyLen; |
| }; |
| class CPDF_CryptoHandler { |
| public: |
| virtual ~CPDF_CryptoHandler() {} |
| |
| virtual FX_BOOL Init(CPDF_Dictionary* pEncryptDict, |
| CPDF_SecurityHandler* pSecurityHandler) = 0; |
| |
| virtual FX_DWORD DecryptGetSize(FX_DWORD src_size) = 0; |
| |
| virtual void* DecryptStart(FX_DWORD objnum, FX_DWORD gennum) = 0; |
| |
| virtual FX_BOOL DecryptStream(void* context, |
| const uint8_t* src_buf, |
| FX_DWORD src_size, |
| CFX_BinaryBuf& dest_buf) = 0; |
| |
| virtual FX_BOOL DecryptFinish(void* context, CFX_BinaryBuf& dest_buf) = 0; |
| |
| virtual FX_DWORD EncryptGetSize(FX_DWORD objnum, |
| FX_DWORD version, |
| const uint8_t* src_buf, |
| FX_DWORD src_size) = 0; |
| |
| virtual FX_BOOL EncryptContent(FX_DWORD objnum, |
| FX_DWORD version, |
| const uint8_t* src_buf, |
| FX_DWORD src_size, |
| uint8_t* dest_buf, |
| FX_DWORD& dest_size) = 0; |
| |
| void Decrypt(FX_DWORD objnum, FX_DWORD version, CFX_ByteString& str); |
| }; |
| class CPDF_StandardCryptoHandler : public CPDF_CryptoHandler { |
| public: |
| CPDF_StandardCryptoHandler(); |
| ~CPDF_StandardCryptoHandler() override; |
| |
| // CPDF_CryptoHandler |
| FX_BOOL Init(CPDF_Dictionary* pEncryptDict, |
| CPDF_SecurityHandler* pSecurityHandler) override; |
| FX_DWORD DecryptGetSize(FX_DWORD src_size) override; |
| void* DecryptStart(FX_DWORD objnum, FX_DWORD gennum) override; |
| FX_BOOL DecryptStream(void* context, |
| const uint8_t* src_buf, |
| FX_DWORD src_size, |
| CFX_BinaryBuf& dest_buf) override; |
| FX_BOOL DecryptFinish(void* context, CFX_BinaryBuf& dest_buf) override; |
| FX_DWORD EncryptGetSize(FX_DWORD objnum, |
| FX_DWORD version, |
| const uint8_t* src_buf, |
| FX_DWORD src_size) override; |
| FX_BOOL EncryptContent(FX_DWORD objnum, |
| FX_DWORD version, |
| const uint8_t* src_buf, |
| FX_DWORD src_size, |
| uint8_t* dest_buf, |
| FX_DWORD& dest_size) override; |
| |
| FX_BOOL Init(int cipher, const uint8_t* key, int keylen); |
| |
| protected: |
| virtual void CryptBlock(FX_BOOL bEncrypt, |
| FX_DWORD objnum, |
| FX_DWORD gennum, |
| const uint8_t* src_buf, |
| FX_DWORD src_size, |
| uint8_t* dest_buf, |
| FX_DWORD& dest_size); |
| virtual void* CryptStart(FX_DWORD objnum, FX_DWORD gennum, FX_BOOL bEncrypt); |
| virtual FX_BOOL CryptStream(void* context, |
| const uint8_t* src_buf, |
| FX_DWORD src_size, |
| CFX_BinaryBuf& dest_buf, |
| FX_BOOL bEncrypt); |
| virtual FX_BOOL CryptFinish(void* context, |
| CFX_BinaryBuf& dest_buf, |
| FX_BOOL bEncrypt); |
| |
| uint8_t m_EncryptKey[32]; |
| |
| int m_KeyLen; |
| |
| int m_Cipher; |
| |
| uint8_t* m_pAESContext; |
| }; |
| class CPDF_Point { |
| public: |
| CPDF_Point(FX_FLOAT xx, FX_FLOAT yy) { |
| x = xx; |
| y = yy; |
| } |
| |
| FX_FLOAT x; |
| |
| FX_FLOAT y; |
| }; |
| |
| #define CPDF_Rect CFX_FloatRect |
| CFX_ByteString PDF_NameDecode(const CFX_ByteStringC& orig); |
| CFX_ByteString PDF_NameDecode(const CFX_ByteString& orig); |
| CFX_ByteString PDF_NameEncode(const CFX_ByteString& orig); |
| CFX_ByteString PDF_EncodeString(const CFX_ByteString& src, |
| FX_BOOL bHex = FALSE); |
| CFX_WideString PDF_DecodeText(const uint8_t* pData, |
| FX_DWORD size, |
| CFX_CharMap* pCharMap = NULL); |
| inline CFX_WideString PDF_DecodeText(const CFX_ByteString& bstr, |
| CFX_CharMap* pCharMap = NULL) { |
| return PDF_DecodeText((const uint8_t*)bstr.c_str(), bstr.GetLength(), |
| pCharMap); |
| } |
| CFX_ByteString PDF_EncodeText(const FX_WCHAR* pString, |
| int len = -1, |
| CFX_CharMap* pCharMap = NULL); |
| inline CFX_ByteString PDF_EncodeText(const CFX_WideString& str, |
| CFX_CharMap* pCharMap = NULL) { |
| return PDF_EncodeText(str.c_str(), str.GetLength(), pCharMap); |
| } |
| FX_FLOAT PDF_ClipFloat(FX_FLOAT f); |
| class CFDF_Document : public CPDF_IndirectObjects { |
| public: |
| static CFDF_Document* CreateNewDoc(); |
| static CFDF_Document* ParseFile(IFX_FileRead* pFile, |
| FX_BOOL bOwnFile = FALSE); |
| static CFDF_Document* ParseMemory(const uint8_t* pData, FX_DWORD size); |
| |
| ~CFDF_Document(); |
| |
| FX_BOOL WriteBuf(CFX_ByteTextBuf& buf) const; |
| |
| CPDF_Dictionary* GetRoot() const { return m_pRootDict; } |
| |
| CFX_WideString GetWin32Path() const; |
| |
| protected: |
| CFDF_Document(); |
| void ParseStream(IFX_FileRead* pFile, FX_BOOL bOwnFile); |
| CPDF_Dictionary* m_pRootDict; |
| IFX_FileRead* m_pFile; |
| FX_BOOL m_bOwnFile; |
| }; |
| |
| CFX_WideString FPDF_FileSpec_GetWin32Path(const CPDF_Object* pFileSpec); |
| void FPDF_FileSpec_SetWin32Path(CPDF_Object* pFileSpec, |
| const CFX_WideString& fullpath); |
| |
| void FlateEncode(const uint8_t* src_buf, |
| FX_DWORD src_size, |
| uint8_t*& dest_buf, |
| FX_DWORD& dest_size); |
| void FlateEncode(const uint8_t* src_buf, |
| FX_DWORD src_size, |
| int predictor, |
| int Colors, |
| int BitsPerComponent, |
| int Columns, |
| uint8_t*& dest_buf, |
| FX_DWORD& dest_size); |
| FX_DWORD FlateDecode(const uint8_t* src_buf, |
| FX_DWORD src_size, |
| uint8_t*& dest_buf, |
| FX_DWORD& dest_size); |
| FX_DWORD RunLengthDecode(const uint8_t* src_buf, |
| FX_DWORD src_size, |
| uint8_t*& dest_buf, |
| FX_DWORD& dest_size); |
| FX_BOOL IsSignatureDict(const CPDF_Dictionary* pDict); |
| |
| class CPDF_NumberTree { |
| public: |
| CPDF_NumberTree(CPDF_Dictionary* pRoot) { m_pRoot = pRoot; } |
| |
| CPDF_Object* LookupValue(int num); |
| |
| protected: |
| CPDF_Dictionary* m_pRoot; |
| }; |
| |
| class IFX_FileAvail { |
| public: |
| virtual ~IFX_FileAvail() {} |
| virtual FX_BOOL IsDataAvail(FX_FILESIZE offset, FX_DWORD size) = 0; |
| }; |
| class IFX_DownloadHints { |
| public: |
| virtual ~IFX_DownloadHints() {} |
| virtual void AddSegment(FX_FILESIZE offset, FX_DWORD size) = 0; |
| }; |
| |
| class IPDF_DataAvail { |
| public: |
| // Must match PDF_DATA_* definitions in public/fpdf_dataavail.h, but cannot |
| // #include that header. fpdfsdk/src/fpdf_dataavail.cpp has static_asserts |
| // to make sure the two sets of values match. |
| enum DocAvailStatus { |
| DataError = -1, // PDF_DATA_ERROR |
| DataNotAvailable = 0, // PDF_DATA_NOTAVAIL |
| DataAvailable = 1, // PDF_DATA_AVAIL |
| }; |
| |
| // Must match PDF_*LINEAR* definitions in public/fpdf_dataavail.h, but cannot |
| // #include that header. fpdfsdk/src/fpdf_dataavail.cpp has static_asserts |
| // to make sure the two sets of values match. |
| enum DocLinearizationStatus { |
| LinearizationUnknown = -1, // PDF_LINEARIZATION_UNKNOWN |
| NotLinearized = 0, // PDF_NOT_LINEARIZED |
| Linearized = 1, // PDF_LINEARIZED |
| }; |
| |
| // Must match PDF_FORM_* definitions in public/fpdf_dataavail.h, but cannot |
| // #include that header. fpdfsdk/src/fpdf_dataavail.cpp has static_asserts |
| // to make sure the two sets of values match. |
| enum DocFormStatus { |
| FormError = -1, // PDF_FORM_ERROR |
| FormNotAvailable = 0, // PDF_FORM_NOTAVAIL |
| FormAvailable = 1, // PDF_FORM_AVAIL |
| FormNotExist = 2, // PDF_FORM_NOTEXIST |
| }; |
| |
| static IPDF_DataAvail* Create(IFX_FileAvail* pFileAvail, |
| IFX_FileRead* pFileRead); |
| virtual ~IPDF_DataAvail() {} |
| |
| IFX_FileAvail* GetFileAvail() const { return m_pFileAvail; } |
| IFX_FileRead* GetFileRead() const { return m_pFileRead; } |
| |
| virtual DocAvailStatus IsDocAvail(IFX_DownloadHints* pHints) = 0; |
| virtual void SetDocument(CPDF_Document* pDoc) = 0; |
| virtual int IsPageAvail(int iPage, IFX_DownloadHints* pHints) = 0; |
| virtual FX_BOOL IsLinearized() = 0; |
| virtual DocFormStatus IsFormAvail(IFX_DownloadHints* pHints) = 0; |
| virtual DocLinearizationStatus IsLinearizedPDF() = 0; |
| virtual void GetLinearizedMainXRefInfo(FX_FILESIZE* pPos, |
| FX_DWORD* pSize) = 0; |
| |
| protected: |
| IPDF_DataAvail(IFX_FileAvail* pFileAvail, IFX_FileRead* pFileRead); |
| |
| IFX_FileAvail* m_pFileAvail; |
| IFX_FileRead* m_pFileRead; |
| }; |
| class CPDF_SortObjNumArray { |
| public: |
| void AddObjNum(FX_DWORD dwObjNum); |
| |
| FX_BOOL Find(FX_DWORD dwObjNum); |
| |
| void RemoveAll() { m_number_array.RemoveAll(); } |
| |
| protected: |
| FX_BOOL BinarySearch(FX_DWORD value, int& iNext); |
| |
| protected: |
| CFX_DWordArray m_number_array; |
| }; |
| enum PDF_PAGENODE_TYPE { |
| PDF_PAGENODE_UNKOWN = 0, |
| PDF_PAGENODE_PAGE, |
| PDF_PAGENODE_PAGES, |
| PDF_PAGENODE_ARRAY, |
| }; |
| class CPDF_PageNode { |
| public: |
| CPDF_PageNode() : m_type(PDF_PAGENODE_UNKOWN) {} |
| ~CPDF_PageNode(); |
| PDF_PAGENODE_TYPE m_type; |
| FX_DWORD m_dwPageNo; |
| CFX_ArrayTemplate<CPDF_PageNode*> m_childNode; |
| }; |
| enum PDF_DATAAVAIL_STATUS { |
| PDF_DATAAVAIL_HEADER = 0, |
| PDF_DATAAVAIL_FIRSTPAGE, |
| PDF_DATAAVAIL_FIRSTPAGE_PREPARE, |
| PDF_DATAAVAIL_HINTTABLE, |
| PDF_DATAAVAIL_END, |
| PDF_DATAAVAIL_CROSSREF, |
| PDF_DATAAVAIL_CROSSREF_ITEM, |
| PDF_DATAAVAIL_CROSSREF_STREAM, |
| PDF_DATAAVAIL_TRAILER, |
| PDF_DATAAVAIL_LOADALLCRSOSSREF, |
| PDF_DATAAVAIL_ROOT, |
| PDF_DATAAVAIL_INFO, |
| PDF_DATAAVAIL_ACROFORM, |
| PDF_DATAAVAIL_ACROFORM_SUBOBJECT, |
| PDF_DATAAVAIL_PAGETREE, |
| PDF_DATAAVAIL_PAGE, |
| PDF_DATAAVAIL_PAGE_LATERLOAD, |
| PDF_DATAAVAIL_RESOURCES, |
| PDF_DATAAVAIL_DONE, |
| PDF_DATAAVAIL_ERROR, |
| PDF_DATAAVAIL_LOADALLFILE, |
| PDF_DATAAVAIL_TRAILER_APPEND |
| }; |
| |
| // Public for testing. |
| FX_DWORD A85Decode(const uint8_t* src_buf, |
| FX_DWORD src_size, |
| uint8_t*& dest_buf, |
| FX_DWORD& dest_size); |
| // Public for testing. |
| FX_DWORD HexDecode(const uint8_t* src_buf, |
| FX_DWORD src_size, |
| uint8_t*& dest_buf, |
| FX_DWORD& dest_size); |
| // Public for testing. |
| FX_DWORD FPDFAPI_FlateOrLZWDecode(FX_BOOL bLZW, |
| const uint8_t* src_buf, |
| FX_DWORD src_size, |
| CPDF_Dictionary* pParams, |
| FX_DWORD estimated_size, |
| uint8_t*& dest_buf, |
| FX_DWORD& dest_size); |
| FX_BOOL PDF_DataDecode(const uint8_t* src_buf, |
| FX_DWORD src_size, |
| const CPDF_Dictionary* pDict, |
| uint8_t*& dest_buf, |
| FX_DWORD& dest_size, |
| CFX_ByteString& ImageEncoding, |
| CPDF_Dictionary*& pImageParms, |
| FX_DWORD estimated_size, |
| FX_BOOL bImageAcc); |
| |
| #endif // CORE_INCLUDE_FPDFAPI_FPDF_PARSER_H_ |