238 lines
7.7 KiB
C++
238 lines
7.7 KiB
C++
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//+---------------------------------------------------------------------------
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//
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// Copyright (C) 1996, Microsoft Corporation.
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//
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// File: htx.hxx
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//
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// Contents: Parser for an HTX file
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//
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// History: 96/Jan/3 DwightKr Created
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//
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//----------------------------------------------------------------------------
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#pragma once
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//
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// This is the total number of include files allowed
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//
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const ULONG MAX_HTX_INCLUDE_FILES = 32;
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//+---------------------------------------------------------------------------
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//
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// Class: CHTXScanner
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//
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// Purpose: Breaks up a string into a number of HTX tokens
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//
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// History: 96/Jan/23 DwightKr Created
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//
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//----------------------------------------------------------------------------
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class CHTXScanner
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{
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public:
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CHTXScanner( CVariableSet & variableSet,
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WCHAR const * wcsPrefix,
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WCHAR const * wcsSuffix );
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void Init( WCHAR * wcsString );
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BOOL FindNextToken();
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BOOL IsToken(WCHAR * wcs);
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int TokenType() const { return _type; }
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WCHAR * GetToken();
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private:
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WCHAR * _wcsString; // String to parse
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WCHAR const * _wcsPrefix; // Token prefix delimiter
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WCHAR const * _wcsSuffix; // Token suffix delimiter
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WCHAR * _wcsPrefixToken; // Start of current token
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WCHAR * _wcsSuffixToken; // End of current token
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CVariableSet & _variableSet; // List of replaceabe parameters
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// used to identify replaceable tokens
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unsigned _cchPrefix; // Length of the prefix delimiter
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unsigned _cchSuffix; // Length of the suffix delimiter
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WCHAR * _wcsNextToken; // Ptr to next token
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unsigned _type; // Type of current token
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unsigned _nextType; // Type of next token if not eNone
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};
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#define CANONIC_HTX_FILE L"//CANONIC.HTX"
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class CParameterReplacer;
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//+---------------------------------------------------------------------------
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//
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// Class: CHTXFile
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//
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// Purpose: Scans and parses an HTX file.
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//
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// History: 96/Jan/23 DwightKr Created
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//
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//----------------------------------------------------------------------------
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class CHTXFile
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{
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public:
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CHTXFile( XPtrST<WCHAR> & wcsTemplate,
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UINT codePage,
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CSecurityIdentity const & securityIdentity,
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ULONG ulServerInstance );
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~CHTXFile();
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void ParseFile( WCHAR const * wcsFileName,
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CVariableSet & variableSet,
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CWebServer & webServer );
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void GetHeader( CVirtualString & string,
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CVariableSet & variableSet,
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COutputFormat & outputFormat );
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void GetFooter( CVirtualString & string,
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CVariableSet & variableSet,
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COutputFormat & outputFormat );
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BOOL DoesDetailSectionExist() { return 0 != _pVarRowDetails; }
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void GetDetailSection( CVirtualString & string,
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CVariableSet & variableSet,
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COutputFormat & outputFormat )
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{
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Win4Assert( 0 != _pVarRowDetails );
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_pVarRowDetails->ReplaceParams( string, variableSet, outputFormat );
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}
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WCHAR const * GetVirtualName() const { return _wcsVirtualName; }
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WCHAR const * GetPhysicalName() const { return _wcsPhysicalName; }
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BOOL IsCachedDataValid();
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inline BOOL CheckSecurity( CSecurityIdentity const & securityIdentity ) const;
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void SetSecurityToken( CSecurityIdentity const & securityIdentity )
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{
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_securityIdentity.SetSecurityToken( securityIdentity );
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}
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BOOL IsSequential() const { return _fSequential; }
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void LokAddRef() { InterlockedIncrement(&_refCount); }
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void Release()
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{
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InterlockedDecrement(&_refCount);
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Win4Assert( _refCount >= 0 );
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}
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LONG LokGetRefCount() { return _refCount; }
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ULONG GetServerInstance() { return _ulServerInstance; }
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void GetFileNameAndLineNumber( int offset,
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WCHAR *& wcsFileName,
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LONG & lineNumber );
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UINT GetCodePage() const { return _codePage; }
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private:
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WCHAR * ReadFile( WCHAR const * wcsFileName,
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FILETIME & ftLastWrite );
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BOOL CheckForSequentialAccess();
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void ExpandFile( WCHAR const * wcsFileName,
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CWebServer & webServer,
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CVirtualString & vString,
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FILETIME & ftLastWrite );
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LONG CountLines( WCHAR const * wcsStart, WCHAR const * wcsEnd ) const;
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FILETIME _ftHTXLastWriteTime; // Last write time of HTX file
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FILETIME _aftIncludeLastWriteTime[MAX_HTX_INCLUDE_FILES];
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WCHAR * _wcsVirtualName; // Virtual name of HTX file
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WCHAR _wcsPhysicalName[_MAX_PATH]; // Physical name
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WCHAR * _awcsIncludeFileName[MAX_HTX_INCLUDE_FILES];
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ULONG _aulIncludeFileOffset[MAX_HTX_INCLUDE_FILES];
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WCHAR * _wcsFileBuffer; // Contents of combined HTX files
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CParameterReplacer * _pVarHeader; // Buffer containing HTX header
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CParameterReplacer * _pVarRowDetails; // Buffer containing detail section
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CParameterReplacer * _pVarFooter; // Buffer containing footer
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BOOL _fSequential; // File can be expanded using seq cursor
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ULONG _cIncludeFiles; // # of include files
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LONG _refCount; // Refcount for this file
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UINT _codePage; // Code page used to read this file
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ULONG _ulServerInstance; // VServer Instance ID
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CSecurityIdentity _securityIdentity; // Security ID used to open file
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};
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//+---------------------------------------------------------------------------
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//
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// Class: CHTXFileList
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//
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// Purpose: List of parsed and cached HTX files
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//
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// History: 96/Mar/27 DwightKr Created
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//
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//----------------------------------------------------------------------------
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class CHTXFileList
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{
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public:
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CHTXFileList() :
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_ulSignature( LONGSIG( 'h', 't', 'x', 'l' ) ),
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_pCanonicHTX( 0 )
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{
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END_CONSTRUCTION(CHTXFileList);
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}
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~CHTXFileList();
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CHTXFile & FindCanonicHTX( CVariableSet & variableSet,
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UINT codePage,
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CSecurityIdentity const & securityIdentity,
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ULONG ulServerInstance );
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CHTXFile & Find( WCHAR const * wcsVirtualName,
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CVariableSet & variableSet,
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COutputFormat & outputFormat,
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CSecurityIdentity const & securityIdentity,
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ULONG ulServerInstance );
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void Release( CHTXFile & htxFile );
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void DeleteZombies();
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private:
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ULONG _ulSignature; // Signature of start of privates
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CMutexSem _mutex; // To serialize access to list
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CDynArrayInPlace<CHTXFile *> _aHTXFile; // parsed HTX files
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CHTXFile * _pCanonicHTX; // HTX file for canonic output.
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};
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//+---------------------------------------------------------------------------
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//
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// Method: CHTXFile::CheckSecurity
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//
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// Purpose: Compare user id with one used to load IDQ file
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//
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// Arguments: [securityIdentity] - Check against this
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//
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// Returns: TRUE if check passes
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//
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// History: 26-Oct-1996 KyleP Created
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//
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//----------------------------------------------------------------------------
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inline BOOL CHTXFile::CheckSecurity( CSecurityIdentity const & securityIdentity ) const
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{
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return _securityIdentity.IsEqual( securityIdentity );
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}
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