diff options
Diffstat (limited to 'core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp')
| -rw-r--r-- | core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp | 202 |
1 files changed, 200 insertions, 2 deletions
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp index 08cc9e5b51..f6253757b6 100644 --- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp +++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp @@ -2716,10 +2716,208 @@ void CPDF_SyntaxParser::GetBinary(FX_BYTE* buffer, FX_DWORD size) } } } + +class CPDF_DataAvail FX_FINAL : public CFX_Object, public IPDF_DataAvail +{ +public: + CPDF_DataAvail(IFX_FileAvail* pFileAvail, IFX_FileRead* pFileRead); + ~CPDF_DataAvail(); + + virtual FX_BOOL IsDocAvail(IFX_DownloadHints* pHints) FX_OVERRIDE; + + virtual void SetDocument(CPDF_Document* pDoc) FX_OVERRIDE; + + virtual FX_BOOL IsPageAvail(int iPage, IFX_DownloadHints* pHints) FX_OVERRIDE; + + virtual FX_INT32 IsFormAvail(IFX_DownloadHints *pHints) FX_OVERRIDE; + + virtual FX_INT32 IsLinearizedPDF() FX_OVERRIDE; + + virtual FX_BOOL IsLinearized() FX_OVERRIDE + { + return m_bLinearized; + } + + virtual void GetLinearizedMainXRefInfo(FX_FILESIZE *pPos, FX_DWORD *pSize) FX_OVERRIDE; +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; + + 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_bMainXRefLoadTried; + + 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; +}; + +IPDF_DataAvail::IPDF_DataAvail(IFX_FileAvail* pFileAvail, IFX_FileRead* pFileRead) : + m_pFileAvail(pFileAvail), + m_pFileRead(pFileRead) { +} + +// static +IPDF_DataAvail* IPDF_DataAvail::Create(IFX_FileAvail* pFileAvail, IFX_FileRead* pFileRead) +{ + return FX_NEW CPDF_DataAvail(pFileAvail, pFileRead); +} + CPDF_DataAvail::CPDF_DataAvail(IFX_FileAvail* pFileAvail, IFX_FileRead* pFileRead) + : IPDF_DataAvail(pFileAvail, pFileRead) { - m_pFileAvail = pFileAvail; - m_pFileRead = pFileRead; m_Pos = 0; m_dwFileLen = 0; if (m_pFileRead) { |