diff options
Diffstat (limited to 'core/include/fpdfapi/fpdf_parser.h')
| -rw-r--r-- | core/include/fpdfapi/fpdf_parser.h | 1149 |
1 files changed, 1149 insertions, 0 deletions
diff --git a/core/include/fpdfapi/fpdf_parser.h b/core/include/fpdfapi/fpdf_parser.h new file mode 100644 index 0000000000..9d41539d52 --- /dev/null +++ b/core/include/fpdfapi/fpdf_parser.h @@ -0,0 +1,1149 @@ +// 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 _FPDF_PARSER_
+#define _FPDF_PARSER_
+#ifndef _FX_BASIC_H_
+#include "../fxcrt/fx_ext.h"
+#endif
+#ifndef _FPDF_OBJECTS_
+#include "fpdf_objects.h"
+#endif
+class CPDF_Document;
+class IPDF_DocParser;
+class CPDF_Parser;
+class CPDF_SecurityHandler;
+class CPDF_StandardSecurityHandler;
+class CPDF_CryptoHandler;
+class CPDF_Object;
+class IFX_FileRead;
+class CFDF_Document;
+class CFDF_Parser;
+class CFX_Font;
+class CFX_AffineMatrix;
+class CFX_FloatRect;
+class CPDF_Point;
+class CPDF_DocPageData;
+class CPDF_DocRenderData;
+class CPDF_ModuleMgr;
+class CFX_DIBSource;
+class CPDF_Font;
+class CPDF_Image;
+class CPDF_ColorSpace;
+class CPDF_Pattern;
+class CPDF_FontEncoding;
+class CPDF_IccProfile;
+class CFX_PrivateData;
+#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
+class IPDF_EnumPageHandler
+{
+public:
+
+ virtual FX_BOOL EnumPage(CPDF_Dictionary* pPageDict) = 0;
+};
+class CPDF_Document : public CFX_PrivateData, public CPDF_IndirectObjects
+{
+public:
+
+ CPDF_Document(IPDF_DocParser* pParser);
+
+ CPDF_Document();
+
+ ~CPDF_Document();
+
+ IPDF_DocParser* 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);
+
+ void EnumPages(IPDF_EnumPageHandler* pHandler);
+
+ 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;
+
+
+
+
+ CPDF_Font* LoadFont(CPDF_Dictionary* pFontDict);
+
+ CPDF_Font* FindFont(CPDF_Dictionary* pFontDict);
+
+ CPDF_ColorSpace* LoadColorSpace(CPDF_Object* pCSObj, CPDF_Dictionary* pResources = NULL);
+
+ CPDF_Pattern* LoadPattern(CPDF_Object* pObj, FX_BOOL bShading, const CFX_AffineMatrix* matrix = NULL);
+
+ CPDF_Image* LoadImageF(CPDF_Object* pObj);
+
+ CPDF_StreamAcc* LoadFontFile(CPDF_Stream* pStream);
+
+ CPDF_IccProfile* LoadIccProfile(CPDF_Stream* pStream, int nComponents);
+
+#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 CFX_Object
+{
+public:
+
+ CPDF_SimpleParser(FX_LPCBYTE pData, FX_DWORD dwSize);
+
+ CPDF_SimpleParser(FX_BSTR str);
+
+ CFX_ByteStringC GetWord();
+
+ FX_BOOL SearchToken(FX_BSTR token);
+
+ FX_BOOL SkipWord(FX_BSTR token);
+
+ FX_BOOL FindTagPair(FX_BSTR start_token, FX_BSTR end_token,
+ FX_DWORD& start_pos, FX_DWORD& end_pos);
+
+ FX_BOOL FindTagParam(FX_BSTR token, int nParams);
+
+ FX_DWORD GetPos()
+ {
+ return m_dwCurPos;
+ }
+
+ void SetPos(FX_DWORD pos)
+ {
+ ASSERT(pos <= m_dwSize);
+ m_dwCurPos = pos;
+ }
+private:
+
+ void ParseWord(FX_LPCBYTE& pStart, FX_DWORD& dwSize, int& type);
+
+ FX_LPCBYTE m_pData;
+
+ FX_DWORD m_dwSize;
+
+ FX_DWORD m_dwCurPos;
+};
+class CPDF_SyntaxParser : public CFX_Object
+{
+public:
+
+ CPDF_SyntaxParser();
+
+ ~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, int level, struct PARSE_CONTEXT* pContext = NULL, FX_BOOL bDecrypt = TRUE);
+
+
+ CPDF_Object* GetObjectByStrict(CPDF_IndirectObjects* pObjList, FX_DWORD objnum, FX_DWORD gennum, int level, struct PARSE_CONTEXT* pContext = NULL);
+
+ int GetDirectNum();
+
+ CFX_ByteString GetString(FX_DWORD objnum, FX_DWORD gennum);
+
+ CFX_ByteString GetName();
+
+ CFX_ByteString GetKeyword();
+
+ void GetBinary(FX_BYTE* buffer, FX_DWORD size);
+
+ void ToNextLine();
+
+ void ToNextWord();
+
+ FX_BOOL SearchWord(FX_BSTR word, FX_BOOL bWholeWord, FX_BOOL bForward, FX_FILESIZE limit);
+
+ int SearchMultiWord(FX_BSTR words, FX_BOOL bWholeWord, FX_FILESIZE limit);
+
+ FX_FILESIZE FindTag(FX_BSTR tag, FX_FILESIZE limit);
+
+ void SetEncrypt(CPDF_CryptoHandler* pCryptoHandler)
+ {
+ m_pCryptoHandler = pCryptoHandler;
+ }
+
+ FX_BOOL IsEncrypted()
+ {
+ return m_pCryptoHandler != NULL;
+ }
+
+ FX_BOOL GetCharAt(FX_FILESIZE pos, FX_BYTE& ch);
+
+ FX_BOOL ReadBlock(FX_BYTE* pBuf, FX_DWORD size);
+
+ CFX_ByteString GetNextWord(FX_BOOL& bIsNumber);
+protected:
+
+ virtual FX_BOOL GetNextChar(FX_BYTE& ch);
+
+ FX_BOOL GetCharAtBackward(FX_FILESIZE pos, FX_BYTE& ch);
+
+ void GetNextWord();
+
+ FX_BOOL IsWholeWord(FX_FILESIZE startpos, FX_FILESIZE limit, FX_LPCBYTE tag, FX_DWORD taglen);
+
+ CFX_ByteString ReadString();
+
+ CFX_ByteString ReadHexString();
+
+ 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;
+
+ FX_BYTE* m_pFileBuf;
+
+ FX_DWORD m_BufSize;
+
+ FX_FILESIZE m_BufOffset;
+
+ CPDF_CryptoHandler* m_pCryptoHandler;
+
+ FX_BYTE m_WordBuffer[257];
+
+ FX_DWORD m_WordSize;
+
+ FX_BOOL m_bIsNumber;
+
+ FX_FILESIZE m_dwWordPos;
+ friend class CPDF_Parser;
+ friend class CPDF_DataAvail;
+};
+
+#define PDFPARSE_TYPEONLY 1
+#define PDFPARSE_NOSTREAM 2
+struct PARSE_CONTEXT {
+
+ FX_BOOL m_Flags;
+
+ FX_FILESIZE m_DictStart;
+
+ FX_FILESIZE m_DictEnd;
+
+ FX_FILESIZE m_DataStart;
+
+ FX_FILESIZE m_DataEnd;
+};
+class IPDF_DocParser : public CFX_Object
+{
+public:
+
+ virtual FX_DWORD GetRootObjNum() = 0;
+
+ virtual FX_DWORD GetInfoObjNum() = 0;
+
+ virtual CPDF_Object* ParseIndirectObject(CPDF_IndirectObjects* pObjList, FX_DWORD objnum, PARSE_CONTEXT* pContext = NULL) = 0;
+
+ virtual FX_DWORD GetLastObjNum() = 0;
+
+ virtual CPDF_Array* GetIDArray() = 0;
+
+ virtual CPDF_Dictionary* GetEncryptDict() = 0;
+
+ FX_BOOL IsEncrypted()
+ {
+ return GetEncryptDict() != NULL;
+ }
+
+ virtual FX_DWORD GetPermissions(FX_BOOL bCheckRevision = FALSE) = 0;
+
+ virtual FX_BOOL IsOwner() = 0;
+
+ virtual FX_BOOL IsFormStream(FX_DWORD objnum, FX_BOOL& bForm) = 0;
+};
+
+#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 IPDF_DocParser
+{
+public:
+
+ CPDF_Parser();
+
+ ~CPDF_Parser();
+
+ FX_DWORD StartParse(FX_LPCSTR filename, FX_BOOL bReParse = FALSE);
+
+ FX_DWORD StartParse(FX_LPCWSTR filename, FX_BOOL bReParse = FALSE);
+
+ FX_DWORD StartParse(IFX_FileRead* pFile, FX_BOOL bReParse = FALSE, FX_BOOL bOwnFileRead = TRUE);
+
+ void CloseParser(FX_BOOL bReParse = FALSE);
+
+ virtual FX_DWORD GetPermissions(FX_BOOL bCheckRevision = FALSE);
+
+ virtual FX_BOOL IsOwner();
+
+ void SetPassword(const FX_CHAR* password)
+ {
+ m_Password = password;
+ }
+
+ CFX_ByteString GetPassword()
+ {
+ return m_Password;
+ }
+
+ CPDF_SecurityHandler* GetSecurityHandler()
+ {
+ return m_pSecurityHandler;
+ }
+
+ CPDF_CryptoHandler* GetCryptoHandler()
+ {
+ return m_Syntax.m_pCryptoHandler;
+ }
+
+ void SetSecurityHandler(CPDF_SecurityHandler* pSecurityHandler, FX_BOOL bForced = FALSE);
+
+ CFX_ByteString GetRecipient()
+ {
+ return m_bsRecipient;
+ }
+
+ CPDF_Dictionary* GetTrailer()
+ {
+ return m_pTrailer;
+ }
+
+ FX_FILESIZE GetLastXRefOffset()
+ {
+ return m_LastXRefOffset;
+ }
+
+ CPDF_Document* GetDocument()
+ {
+ return m_pDocument;
+ }
+ CFX_ArrayTemplate<CPDF_Dictionary *> * GetOtherTrailers()
+ {
+ return &m_Trailers;
+ }
+
+ virtual FX_DWORD GetRootObjNum();
+ virtual FX_DWORD GetInfoObjNum();
+ virtual CPDF_Array* GetIDArray();
+ virtual CPDF_Dictionary* GetEncryptDict()
+ {
+ return m_pEncryptDict;
+ }
+ virtual CPDF_Object* ParseIndirectObject(CPDF_IndirectObjects* pObjList, FX_DWORD objnum, PARSE_CONTEXT* pContext = NULL);
+ virtual FX_DWORD GetLastObjNum();
+ virtual FX_BOOL IsFormStream(FX_DWORD objnum, FX_BOOL& bForm);
+
+ FX_FILESIZE GetObjectOffset(FX_DWORD objnum);
+
+ FX_FILESIZE GetObjectSize(FX_DWORD objnum);
+
+ int GetObjectVersion(FX_DWORD objnum)
+ {
+ return m_ObjVersion[objnum];
+ }
+
+ void GetIndirectBinary(FX_DWORD objnum, FX_BYTE*& pBuffer, FX_DWORD& size);
+
+ FX_BOOL GetFileStreamOption()
+ {
+ return m_Syntax.m_bFileStream;
+ }
+
+ void SetFileStreamOption(FX_BOOL b)
+ {
+ m_Syntax.m_bFileStream = b;
+ }
+
+ 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);
+
+ FX_BOOL LoadCrossRefV4(FX_FILESIZE pos, FX_FILESIZE streampos, FX_BOOL bSkip, FX_BOOL bFirst);
+
+ FX_BOOL LoadCrossRefV5(FX_FILESIZE pos, FX_FILESIZE& prev, 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();
+
+ CFX_MapPtrToPtr m_ObjectStreamMap;
+
+ CPDF_StreamAcc* GetObjectStream(FX_DWORD number);
+
+ FX_BOOL IsLinearizedFile(IFX_FileRead* pFileAccess, FX_DWORD offset);
+
+
+
+ int m_FileVersion;
+
+ CPDF_Dictionary* m_pTrailer;
+
+ CPDF_Dictionary* m_pEncryptDict;
+ void SetEncryptDictionary(CPDF_Dictionary* pDict);
+
+ FX_FILESIZE m_LastXRefOffset;
+
+ FX_BOOL m_bXRefStream;
+
+
+ CPDF_SecurityHandler* m_pSecurityHandler;
+
+ FX_BOOL m_bForceUseSecurityHandler;
+
+ CFX_ByteString m_bsRecipient;
+
+ CFX_ByteString m_FilePath;
+
+ CFX_ByteString m_Password;
+
+ CFX_FileSizeArray m_CrossRef;
+
+ CFX_ByteArray m_V5Type;
+
+ CFX_FileSizeArray m_SortedOffset;
+
+ CFX_WordArray m_ObjVersion;
+ CFX_ArrayTemplate<CPDF_Dictionary *> m_Trailers;
+
+ FX_BOOL m_bVersionUpdated;
+
+ CPDF_Object* m_pLinearized;
+
+ FX_DWORD m_dwFirstPageNo;
+
+ FX_DWORD m_dwXrefStartObjNum;
+ 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 CFX_Object
+{
+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, FX_LPCBYTE& 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();
+
+ virtual ~CPDF_StandardSecurityHandler();
+ virtual FX_BOOL OnInit(CPDF_Parser* pParser, CPDF_Dictionary* pEncryptDict);
+ virtual FX_DWORD GetPermissions();
+ virtual FX_BOOL IsOwner()
+ {
+ return m_bOwner;
+ }
+ virtual FX_BOOL GetCryptInfo(int& cipher, FX_LPCBYTE& buffer, int& keylen);
+ virtual FX_BOOL IsMetadataEncrypted();
+ virtual CPDF_CryptoHandler* CreateCryptoHandler();
+ virtual CPDF_StandardSecurityHandler* GetStandardHandler()
+ {
+ return this;
+ }
+
+ void OnCreate(CPDF_Dictionary* pEncryptDict, CPDF_Array* pIdArray,
+ FX_LPCBYTE user_pass, FX_DWORD user_size,
+ FX_LPCBYTE owner_pass, FX_DWORD owner_size, FX_DWORD type = PDF_ENCRYPT_CONTENT);
+
+ void OnCreate(CPDF_Dictionary* pEncryptDict, CPDF_Array* pIdArray,
+ FX_LPCBYTE user_pass, FX_DWORD user_size, FX_DWORD type = PDF_ENCRYPT_CONTENT);
+
+ CFX_ByteString GetUserPassword(FX_LPCBYTE owner_pass, FX_DWORD pass_size);
+ CFX_ByteString GetUserPassword(FX_LPCBYTE owner_pass, FX_DWORD pass_size, FX_INT32 key_len);
+ int GetVersion()
+ {
+ return m_Version;
+ }
+ int GetRevision()
+ {
+ return m_Revision;
+ }
+
+ int CheckPassword(FX_LPCBYTE password, FX_DWORD pass_size, FX_BOOL bOwner, FX_LPBYTE key);
+ int CheckPassword(FX_LPCBYTE password, FX_DWORD pass_size, FX_BOOL bOwner, FX_LPBYTE 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(FX_LPCBYTE password, FX_DWORD pass_size,
+ FX_BOOL bIgnoreEncryptMeta, FX_LPBYTE key, FX_INT32 key_len);
+
+ FX_BOOL CheckOwnerPassword(FX_LPCBYTE password, FX_DWORD pass_size, FX_LPBYTE key, FX_INT32 key_len);
+ FX_BOOL AES256_CheckPassword(FX_LPCBYTE password, FX_DWORD size, FX_BOOL bOwner, FX_LPBYTE key);
+ void AES256_SetPassword(CPDF_Dictionary* pEncryptDict, FX_LPCBYTE password, FX_DWORD size, FX_BOOL bOwner, FX_LPCBYTE key);
+ void AES256_SetPerms(CPDF_Dictionary* pEncryptDict, FX_DWORD permission, FX_BOOL bEncryptMetadata, FX_LPCBYTE key);
+ void OnCreate(CPDF_Dictionary* pEncryptDict, CPDF_Array* pIdArray,
+ FX_LPCBYTE user_pass, FX_DWORD user_size,
+ FX_LPCBYTE owner_pass, FX_DWORD owner_size, FX_BOOL bDefault, FX_DWORD type);
+ FX_BOOL CheckSecurity(FX_INT32 key_len);
+
+ FX_BOOL m_bOwner;
+
+ FX_DWORD m_Permissions;
+
+ int m_Cipher;
+
+ FX_BYTE m_EncryptKey[32];
+
+ int m_KeyLen;
+};
+class CPDF_CryptoHandler : public CFX_Object
+{
+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 FX_LPVOID DecryptStart(FX_DWORD objnum, FX_DWORD gennum) = 0;
+
+ virtual FX_BOOL DecryptStream(FX_LPVOID context, FX_LPCBYTE src_buf, FX_DWORD src_size, CFX_BinaryBuf& dest_buf) = 0;
+
+ virtual FX_BOOL DecryptFinish(FX_LPVOID context, CFX_BinaryBuf& dest_buf) = 0;
+
+
+ virtual FX_DWORD EncryptGetSize(FX_DWORD objnum, FX_DWORD version, FX_LPCBYTE src_buf, FX_DWORD src_size) = 0;
+
+ virtual FX_BOOL EncryptContent(FX_DWORD objnum, FX_DWORD version, FX_LPCBYTE src_buf, FX_DWORD src_size,
+ FX_LPBYTE 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();
+
+ virtual ~CPDF_StandardCryptoHandler();
+
+ FX_BOOL Init(int cipher, FX_LPCBYTE key, int keylen);
+ virtual FX_BOOL Init(CPDF_Dictionary* pEncryptDict, CPDF_SecurityHandler* pSecurityHandler);
+ virtual FX_DWORD DecryptGetSize(FX_DWORD src_size);
+ virtual FX_LPVOID DecryptStart(FX_DWORD objnum, FX_DWORD gennum);
+ virtual FX_BOOL DecryptStream(FX_LPVOID context, FX_LPCBYTE src_buf, FX_DWORD src_size, CFX_BinaryBuf& dest_buf);
+ virtual FX_BOOL DecryptFinish(FX_LPVOID context, CFX_BinaryBuf& dest_buf);
+ virtual FX_DWORD EncryptGetSize(FX_DWORD objnum, FX_DWORD version, FX_LPCBYTE src_buf, FX_DWORD src_size);
+ virtual FX_BOOL EncryptContent(FX_DWORD objnum, FX_DWORD version, FX_LPCBYTE src_buf, FX_DWORD src_size,
+ FX_LPBYTE dest_buf, FX_DWORD& dest_size);
+protected:
+
+ virtual void CryptBlock(FX_BOOL bEncrypt, FX_DWORD objnum, FX_DWORD gennum, FX_LPCBYTE src_buf, FX_DWORD src_size,
+ FX_LPBYTE dest_buf, FX_DWORD& dest_size);
+ virtual FX_LPVOID CryptStart(FX_DWORD objnum, FX_DWORD gennum, FX_BOOL bEncrypt);
+ virtual FX_BOOL CryptStream(FX_LPVOID context, FX_LPCBYTE src_buf, FX_DWORD src_size, CFX_BinaryBuf& dest_buf, FX_BOOL bEncrypt);
+ virtual FX_BOOL CryptFinish(FX_LPVOID context, CFX_BinaryBuf& dest_buf, FX_BOOL bEncrypt);
+
+ FX_BYTE m_EncryptKey[32];
+
+ int m_KeyLen;
+
+ int m_Cipher;
+
+ FX_LPBYTE m_pAESContext;
+};
+class CPDF_Point : public CFX_Object
+{
+public:
+
+ CPDF_Point(FX_FLOAT xx, FX_FLOAT yy)
+ {
+ x = xx;
+ y = yy;
+ }
+
+ FX_FLOAT x;
+
+ FX_FLOAT y;
+};
+
+#define CPDF_Rect CFX_FloatRect
+#define CPDF_Matrix CFX_AffineMatrix
+CFX_ByteString PDF_NameDecode(FX_BSTR 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 CFX_ByteString& str, CFX_CharMap* pCharMap = NULL);
+CFX_WideString PDF_DecodeText(FX_LPCBYTE pData, FX_DWORD size, CFX_CharMap* pCharMap = NULL);
+CFX_ByteString PDF_EncodeText(FX_LPCWSTR pString, int len = -1, CFX_CharMap* pCharMap = NULL);
+FX_FLOAT PDF_ClipFloat(FX_FLOAT f);
+class CFDF_Document : public CPDF_IndirectObjects
+{
+public:
+
+ static CFDF_Document* CreateNewDoc();
+
+ static CFDF_Document* ParseFile(FX_LPCSTR file_path);
+
+ static CFDF_Document* ParseFile(FX_LPCWSTR file_path);
+
+ static CFDF_Document* ParseFile(IFX_FileRead *pFile, FX_BOOL bOwnFile = FALSE);
+
+ static CFDF_Document* ParseMemory(FX_LPCBYTE pData, FX_DWORD size);
+
+ ~CFDF_Document();
+
+ FX_BOOL WriteFile(FX_LPCSTR file_path) const;
+
+ FX_BOOL WriteFile(FX_LPCWSTR file_path) const;
+
+ FX_BOOL WriteFile(IFX_FileWrite *pFile) const;
+
+ 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 FX_BYTE* src_buf, FX_DWORD src_size, FX_LPBYTE& dest_buf, FX_DWORD& dest_size);
+FX_DWORD FlateDecode(const FX_BYTE* src_buf, FX_DWORD src_size, FX_LPBYTE& dest_buf, FX_DWORD& dest_size);
+FX_DWORD RunLengthDecode(const FX_BYTE* src_buf, FX_DWORD src_size, FX_LPBYTE& dest_buf, FX_DWORD& dest_size);
+class CPDF_NumberTree : public CFX_Object
+{
+public:
+
+ CPDF_NumberTree(CPDF_Dictionary* pRoot)
+ {
+ m_pRoot = pRoot;
+ }
+
+ CPDF_Object* LookupValue(int num);
+protected:
+
+ CPDF_Dictionary* m_pRoot;
+};
+
+class IFX_FileAvail
+{
+public:
+
+ virtual FX_BOOL IsDataAvail( FX_FILESIZE offset, FX_DWORD size) = 0;
+};
+class IFX_DownloadHints
+{
+public:
+
+ virtual void AddSegment(FX_FILESIZE offset, FX_DWORD size) = 0;
+};
+#define PDF_IS_LINEARIZED 1
+#define PDF_NOT_LINEARIZED 0
+#define PDF_UNKNOW_LINEARIZED -1
+#define PDFFORM_NOTAVAIL 0
+#define PDFFORM_AVAIL 1
+#define PDFFORM_NOTEXIST 2
+class IPDF_DataAvail
+{
+public:
+
+ virtual FX_BOOL IsDocAvail(IFX_DownloadHints* pHints) = 0;
+
+
+ virtual void SetDocument(CPDF_Document* pDoc) = 0;
+
+
+ virtual FX_BOOL IsPageAvail(int iPage, IFX_DownloadHints* pHints) = 0;
+
+ virtual FX_BOOL IsLinearized() = 0;
+
+ virtual FX_INT32 IsFormAvail(IFX_DownloadHints *pHints) = 0;
+
+ virtual FX_INT32 IsLinearizedPDF() = 0;
+
+ virtual void GetLinearizedMainXRefInfo(FX_FILESIZE *pPos, FX_DWORD *pSize) = 0;
+};
+class CPDF_SortObjNumArray : public CFX_Object
+{
+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 CFX_Object
+{
+public:
+ CPDF_PageNode() : m_type(PDF_PAGENODE_UNKOWN) {}
+ ~CPDF_PageNode();
+ PDF_PAGENODE_TYPE m_type;
+ FX_DWORD m_dwPageNo;
+ CFX_PtrArray m_childNode;
+};
+enum PDF_DATAAVAIL_STATUS {
+ PDF_DATAAVAIL_HEADER = 0,
+ PDF_DATAAVAIL_FIRSTPAGE,
+ PDF_DATAAVAIL_FIRSTPAGE_PREPARE,
+ 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
+};
+class CPDF_DataAvail : public CFX_Object, public IPDF_DataAvail
+{
+public:
+
+ CPDF_DataAvail(IFX_FileAvail* pFileAvail, IFX_FileRead* pFileRead);
+ ~CPDF_DataAvail();
+
+ virtual FX_BOOL IsDocAvail(IFX_DownloadHints* pHints);
+
+
+ virtual void SetDocument(CPDF_Document* pDoc);
+
+
+ virtual FX_BOOL IsPageAvail(int iPage, IFX_DownloadHints* pHints);
+
+ virtual FX_INT32 IsFormAvail(IFX_DownloadHints *pHints);
+
+ virtual FX_INT32 IsLinearizedPDF();
+
+ virtual FX_BOOL IsLinearized()
+ {
+ return m_bLinearized;
+ }
+
+ virtual void GetLinearizedMainXRefInfo(FX_FILESIZE *pPos, FX_DWORD *pSize);
+ IFX_FileRead* GetFileRead() const
+ {
+ return m_pFileRead;
+ }
+ IFX_FileAvail* GetFileAvail() const
+ {
+ return m_pFileAvail;
+ }
+protected:
+ FX_DWORD GetObjectSize(FX_DWORD objnum, FX_FILESIZE& offset);
+ FX_BOOL IsObjectsAvail(CFX_PtrArray& obj_array, FX_BOOL bParsePage, IFX_DownloadHints* pHints, CFX_PtrArray &ret_array);
+ FX_BOOL CheckDocStatus(IFX_DownloadHints *pHints);
+ FX_BOOL CheckHeader(IFX_DownloadHints* pHints);
+ FX_BOOL CheckFirstPage(IFX_DownloadHints *pHints);
+ FX_BOOL CheckEnd(IFX_DownloadHints *pHints);
+ FX_BOOL CheckCrossRef(IFX_DownloadHints* pHints);
+ FX_BOOL CheckCrossRefItem(IFX_DownloadHints *pHints);
+ FX_BOOL CheckTrailer(IFX_DownloadHints* pHints);
+ FX_BOOL CheckRoot(IFX_DownloadHints* pHints);
+ FX_BOOL CheckInfo(IFX_DownloadHints* pHints);
+ FX_BOOL CheckPages(IFX_DownloadHints* pHints);
+ FX_BOOL CheckPage(IFX_DownloadHints* pHints);
+ FX_BOOL CheckResources(IFX_DownloadHints* pHints);
+ FX_BOOL CheckAnnots(IFX_DownloadHints* pHints);
+ FX_BOOL CheckAcroForm(IFX_DownloadHints* pHints);
+ FX_BOOL CheckAcroFormSubObject(IFX_DownloadHints* pHints);
+ FX_BOOL CheckTrailerAppend(IFX_DownloadHints* pHints);
+ FX_BOOL CheckPageStatus(IFX_DownloadHints* pHints);
+ FX_BOOL CheckAllCrossRefStream(IFX_DownloadHints *pHints);
+
+ FX_DWORD CheckCrossRefStream(IFX_DownloadHints *pHints, FX_FILESIZE &xref_offset);
+ FX_BOOL IsLinearizedFile(FX_LPBYTE pData, FX_DWORD dwLen);
+ void SetStartOffset(FX_FILESIZE dwOffset);
+ FX_BOOL GetNextToken(CFX_ByteString &token);
+ FX_BOOL GetNextChar(FX_BYTE &ch);
+ CPDF_Object * ParseIndirectObjectAt(FX_FILESIZE pos, FX_DWORD objnum);
+ CPDF_Object * GetObject(FX_DWORD objnum, IFX_DownloadHints* pHints, FX_BOOL *pExistInFile);
+ FX_BOOL GetPageKids(CPDF_Parser *pParser, CPDF_Object *pPages);
+ FX_BOOL PreparePageItem();
+ FX_BOOL LoadPages(IFX_DownloadHints* pHints);
+ FX_BOOL LoadAllXref(IFX_DownloadHints* pHints);
+ FX_BOOL LoadAllFile(IFX_DownloadHints* pHints);
+ FX_BOOL CheckLinearizedData(IFX_DownloadHints* pHints);
+ FX_BOOL CheckFileResources(IFX_DownloadHints* pHints);
+ FX_BOOL CheckPageAnnots(int iPage, IFX_DownloadHints* pHints);
+
+ FX_BOOL CheckLinearizedFirstPage(int iPage, IFX_DownloadHints* pHints);
+ FX_BOOL HaveResourceAncestor(CPDF_Dictionary *pDict);
+ FX_BOOL CheckPage(FX_INT32 iPage, IFX_DownloadHints* pHints);
+ FX_BOOL LoadDocPages(IFX_DownloadHints* pHints);
+ FX_BOOL LoadDocPage(FX_INT32 iPage, IFX_DownloadHints* pHints);
+ FX_BOOL CheckPageNode(CPDF_PageNode &pageNodes, FX_INT32 iPage, FX_INT32 &iCount, IFX_DownloadHints* pHints);
+ FX_BOOL CheckUnkownPageNode(FX_DWORD dwPageNo, CPDF_PageNode *pPageNode, IFX_DownloadHints* pHints);
+ FX_BOOL CheckArrayPageNode(FX_DWORD dwPageNo, CPDF_PageNode *pPageNode, IFX_DownloadHints* pHints);
+ FX_BOOL CheckPageCount(IFX_DownloadHints* pHints);
+ FX_BOOL IsFirstCheck(int iPage);
+ void ResetFirstCheck(int iPage);
+
+ CPDF_Parser m_parser;
+
+ CPDF_SyntaxParser m_syntaxParser;
+
+ CPDF_Object *m_pRoot;
+
+ FX_DWORD m_dwRootObjNum;
+
+ FX_DWORD m_dwInfoObjNum;
+
+ CPDF_Object *m_pLinearized;
+
+ CPDF_Object *m_pTrailer;
+
+ FX_BOOL m_bDocAvail;
+
+ FX_FILESIZE m_dwHeaderOffset;
+
+ FX_FILESIZE m_dwLastXRefOffset;
+
+ FX_FILESIZE m_dwXRefOffset;
+
+ FX_FILESIZE m_dwTrailerOffset;
+
+ FX_FILESIZE m_dwCurrentOffset;
+
+ PDF_DATAAVAIL_STATUS m_docStatus;
+
+ IFX_FileAvail* m_pFileAvail;
+
+ IFX_FileRead* m_pFileRead;
+
+ FX_FILESIZE m_dwFileLen;
+
+ CPDF_Document* m_pDocument;
+
+ CPDF_SortObjNumArray m_objnum_array;
+
+ CFX_PtrArray m_objs_array;
+
+ FX_FILESIZE m_Pos;
+
+ FX_FILESIZE m_bufferOffset;
+
+ FX_DWORD m_bufferSize;
+
+ CFX_ByteString m_WordBuf;
+
+ FX_BYTE m_WordBuffer[257];
+
+ FX_DWORD m_WordSize;
+
+ FX_BYTE m_bufferData[512];
+
+ CFX_FileSizeArray m_CrossOffset;
+
+ CFX_DWordArray m_XRefStreamList;
+
+ CFX_DWordArray m_PageObjList;
+
+ FX_DWORD m_PagesObjNum;
+
+ FX_BOOL m_bLinearized;
+
+ FX_DWORD m_dwFirstPageNo;
+
+ FX_BOOL m_bLinearedDataOK;
+
+ FX_BOOL m_bMainXRefLoad;
+
+ FX_BOOL m_bMainXRefLoadedOK;
+
+ FX_BOOL m_bPagesTreeLoad;
+
+ FX_BOOL m_bPagesLoad;
+
+ CPDF_Parser * m_pCurrentParser;
+
+ FX_FILESIZE m_dwCurrentXRefSteam;
+
+ FX_BOOL m_bAnnotsLoad;
+
+ FX_BOOL m_bHaveAcroForm;
+
+ FX_DWORD m_dwAcroFormObjNum;
+
+ FX_BOOL m_bAcroFormLoad;
+
+ CPDF_Object * m_pAcroForm;
+
+ CFX_PtrArray m_arrayAcroforms;
+
+ CPDF_Dictionary * m_pPageDict;
+
+ CPDF_Object * m_pPageResource;
+
+ FX_BOOL m_bNeedDownLoadResource;
+
+ FX_BOOL m_bPageLoadedOK;
+
+ FX_BOOL m_bLinearizedFormParamLoad;
+
+ CFX_PtrArray m_PagesArray;
+
+ FX_DWORD m_dwEncryptObjNum;
+
+ FX_FILESIZE m_dwPrevXRefOffset;
+
+ FX_BOOL m_bTotalLoadPageTree;
+
+ FX_BOOL m_bCurPageDictLoadOK;
+
+ CPDF_PageNode m_pageNodes;
+
+ CFX_CMapDWordToDWord * m_pageMapCheckState;
+
+ CFX_CMapDWordToDWord * m_pagesLoadState;
+};
+#endif
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