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