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#ifndef _DATASNIF_HXX
#define _DATASNIF_HXX
//+---------------------------------------------------------------------------
//
// Microsoft Windows
// Copyright (C) Microsoft Corporation, 1992 - 1996.
//
// File: datasnif.hxx
//
// Contents: Stream Mime type checking (attempts to guess the MIME type
// of a buffer by simple pattern matching).
//
// Classes: ContentAnalyzer
//
// Functions: private:
//
// CContentAnalyzer::SampleData
// CContentAnalyzer::IsBMP
// CContentAnalyzer::GetDataFormat
// CContentAnalyzer::FormatAgreesWithData
// CContentAnalyzer::MatchDWordAtOffset
// CContentAnalyzer::FindAppFromExt
// CContentAnalyzer::CheckTextHeaders
// CContentAnalyzer::CheckBinaryHeaders
//
// public:
// ContentAnalyzer::FindMimeFromData
// ::FindMimeFromData
//
//
// 05-26-96 AdriaanC (Adriaan Canter) Created
// 07-16-96 AdriaanC (Adriaan Canter) Modified
// 08-07-96 AdriaanC (Adriaan Canter) Modified
// 08-14-96 AdriaanC (Adriaan Canter) Modified
//
//----------------------------------------------------------------------------
class CContentAnalyzer{private:
int _cbSample; int _cbText; int _cbNL; int _cbCR; int _cbFF; int _cbCtrl; int _cbHigh;
char* _pBuf; WCHAR* _wzEncoding; WCHAR* _wzMimeType; DWORD _grfFlags; BOOL _fBinary; BOOL _fFoundHTML; // Patterns requiring searching through buffer
BOOL _fFoundXBitMap; //
BOOL _fFoundMacBinhex; //
BOOL _fFoundCDF; BOOL _fFoundTextScriptlet; BOOL _fFoundXML; WCHAR _wzMimeTypeFromExt[SZMIMESIZE_MAX];
private: inline void SampleData(); inline BOOL IsBMP(); inline DWORD GetDataFormat(LPCWSTR); inline BOOL FormatAgreesWithData(DWORD); inline BOOL MatchDWordAtOffset(DWORD, int); inline BOOL FindAppFromExt(LPSTR, LPSTR, DWORD); inline BOOL CheckTextHeaders(); inline BOOL CheckBinaryHeaders();public: CContentAnalyzer() : _cbSample(0), _cbText(0), _cbNL(0), _cbCR(0), _cbFF(0), _cbCtrl(0), _cbHigh(0), _pBuf(0), _grfFlags(0), _fFoundHTML(FALSE), _fFoundXBitMap(FALSE), _fFoundMacBinhex(FALSE), _fBinary(FALSE), _fFoundCDF(FALSE), _fFoundTextScriptlet(FALSE), _fFoundXML(FALSE) {}
LPCWSTR FindMimeFromData(LPCWSTR, char*, int, LPCWSTR, DWORD); BOOL FindMimeFromExt( LPCWSTR wzFileName, CHAR *szFileName, CHAR *szMimeTypeFromExt, DWORD *pdwExtMimeTypeDataFormat, CHAR **ppszFileExt);
};
LPCWSTR FindMimeFromData(LPCWSTR pwzFilename, LPVOID pBuffer, DWORD cbBufferSize, LPCWSTR pwzMimeProposed, DWORD grfFlags);
// private flags for bad header
#endif // _DATASNIF_HXX
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