1021 lines
28 KiB
C++
1021 lines
28 KiB
C++
//+-------------------------------------------------------------------------
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//
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// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
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// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
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// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
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// PARTICULAR PURPOSE.
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//
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// Copyright 1998 - 1999 Microsoft Corporation. All Rights Reserved.
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//
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// PROGRAM: htmlprop.cxx
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//
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// PURPOSE: Sits on the Indexing Service HTML filter to translate string
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// meta properties into specified data types.
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//
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// PLATFORM: Windows 2000
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//
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//--------------------------------------------------------------------------
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#define UNICODE
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#include <stdio.h>
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#include <wchar.h>
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#include <windows.h>
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#include <oledb.h>
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#include <cmdtree.h>
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#include <filterr.h>
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#include <filter.h>
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#include "htmlprop.hxx"
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#include "filtreg.hxx"
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// The typid of the html filter
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CLSID TYPID_HtmlPropIFilter =
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{
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0xc8e2ab80, 0xa1db, 0x11d1,
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{ 0xa8, 0xfb, 0x00, 0xe0, 0x98, 0x00, 0x6e, 0xd3 }
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};
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// The CLSID for the html property filter
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CLSID CLSID_HtmlPropIFilter =
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{
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0xf4309e80, 0xa1db, 0x11d1,
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{ 0xa8, 0xfb, 0x00, 0xe0, 0x98, 0x00, 0x6e, 0xd3 }
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};
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// Class of the html property filter
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CLSID CLSID_HtmlPropClass =
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{
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0x4cbd1020, 0xa1db, 0x11d1,
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{ 0xa8, 0xfb, 0x00, 0xe0, 0x98, 0x00, 0x6e, 0xd3 }
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};
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// The built-in html filter
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CLSID CLSID_HtmlIFilter =
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{
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0xe0ca5340, 0x4534, 0x11cf,
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{ 0xb9, 0x52, 0x00, 0xaa, 0x00, 0x51, 0xfe, 0x20 }
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};
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// The guid for html meta properties
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CLSID CLSID_MetaProperty =
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{
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0xd1b5d3f0, 0xc0b3, 0x11cf,
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{ 0x9a, 0x92, 0x00, 0xa0, 0xc9, 0x08, 0xdb, 0xf1 }
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};
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// The guid for html meta properties in string form
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const WCHAR * pwcMetaProperty = L"d1b5d3f0-c0b3-11cf-9a92-00a0c908dbf1";
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struct SPropertyEntry
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{
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WCHAR awcName[cwcMaxName]; // name of the meta property
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DBTYPE dbType; // data type of property
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};
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const SPropertyEntry aTypeEntries[] =
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{
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{ L"DBTYPE_I1", DBTYPE_I1 }, // 0: signed char
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{ L"DBTYPE_UI1", DBTYPE_UI1 }, // 1: unsigned char
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{ L"DBTYPE_I2", DBTYPE_I2 }, // 2: 2 byte signed int
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{ L"DBTYPE_UI2", DBTYPE_UI2 }, // 3: 2 byte unsigned int
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{ L"DBTYPE_I4", DBTYPE_I4 }, // 4: 4 byte signed int
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{ L"DBTYPE_UI4", DBTYPE_UI4 }, // 5: 4 byte unsigned int
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{ L"DBTYPE_I8", DBTYPE_I8 }, // 6: 8 byte signed int
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{ L"DBTYPE_UI8", DBTYPE_UI8 }, // 7: 8 byte unsigned int
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{ L"DBTYPE_R4", DBTYPE_R4 }, // 8: 4 byte float
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{ L"DBTYPE_R8", DBTYPE_R8 }, // 9: 8 byte float
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{ L"DBTYPE_BOOL", DBTYPE_BOOL }, // 12: BOOL (true=-1, false=0)
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{ L"DBTYPE_WSTR", DBTYPE_WSTR }, // 14: wide null terminated string
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{ L"VT_FILETIME", VT_FILETIME } // 19: I8 filetime
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};
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const ULONG cTypeEntries = sizeof aTypeEntries / sizeof aTypeEntries[0];
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const WCHAR * pwcHTMLPropertyFile = L"htmlprop.ini";
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const ULONG maxEntries = 500;
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SPropertyEntry g_aEntries[ maxEntries ];
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ULONG g_cEntries = 0; // count of entries in g_aEntries
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long g_cInstances = 0;
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HMODULE g_hHtmlDll = 0; // module handle for nlhtml.dll
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// htmlfilt.dll for IS 1.x and nlhtml.dll for IS 2.x
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const WCHAR * pwcHTMLFilter = L"nlhtml.dll";
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//+-------------------------------------------------------------------------
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//
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// Method: HtmlPropIFilter::HtmlPropIFilter
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//
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// Synopsis: Constructor
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//
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//--------------------------------------------------------------------------
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HtmlPropIFilter::HtmlPropIFilter() :
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_pHtmlFilter( 0 ),
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_pPersistFile( 0 ),
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_lRefs( 1 )
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{
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InterlockedIncrement( &g_cInstances );
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} //HtmlPropIFilter
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//+-------------------------------------------------------------------------
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//
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// Method: HtmlPropIFilter::~HtmlPropIFilter
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//
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// Synopsis: Destructor
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//
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//--------------------------------------------------------------------------
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HtmlPropIFilter::~HtmlPropIFilter()
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{
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InterlockedDecrement( &g_cInstances );
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if ( _pHtmlFilter )
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_pHtmlFilter->Release();
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if ( _pPersistFile )
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_pPersistFile->Release();
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} //~HtmlPropIFilter
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//+-------------------------------------------------------------------------
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//
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// Method: HtmlPropIFilter::QueryInterface
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//
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// Synopsis: Rebind to other interface
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//
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// Arguments: [riid] -- IID of new interface
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// [ppvObject] -- New interface * returned here
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//
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// Returns: S_OK if bind succeeded, E_NOINTERFACE if bind failed
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//
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//--------------------------------------------------------------------------
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SCODE STDMETHODCALLTYPE HtmlPropIFilter::QueryInterface(
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REFIID riid,
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void ** ppvObject)
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{
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if ( IID_IFilter == riid )
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*ppvObject = (IFilter *)this;
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else if ( IID_IPersist == riid )
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*ppvObject = (IPersist *)(IPersistFile *)this;
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else if ( IID_IPersistFile == riid )
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*ppvObject = (IPersistFile *)this;
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else if ( IID_IUnknown == riid )
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*ppvObject = (IUnknown *)(IPersist *)(IPersistFile *)this;
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else
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{
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*ppvObject = 0;
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return E_NOINTERFACE;
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}
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AddRef();
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return S_OK;
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} //QueryInterface
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//+-------------------------------------------------------------------------
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//
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// Method: HtmlPropIFilter::AddRef
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//
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// Synopsis: Increments refcount
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//
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//--------------------------------------------------------------------------
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ULONG STDMETHODCALLTYPE HtmlPropIFilter::AddRef()
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{
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return InterlockedIncrement( &_lRefs );
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} //AddRef
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//+-------------------------------------------------------------------------
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//
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// Method: HtmlPropIFilter::Release
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//
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// Synopsis: Decrement refcount. Delete if necessary.
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//
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//--------------------------------------------------------------------------
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ULONG STDMETHODCALLTYPE HtmlPropIFilter::Release()
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{
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long lTmp = InterlockedDecrement( &_lRefs );
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if ( 0 == lTmp )
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delete this;
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return lTmp;
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} //Release
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//+-------------------------------------------------------------------------
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//
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// Member: HtmlPropIFilter::Init, public
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//
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// Synopsis: Initializes instance of property filter
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//
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// Arguments: [grfFlags] -- flags for filter behavior
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// [cAttributes] -- number of attributes in array aAttributes
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// [aAttributes] -- array of attributes
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// [pFlags] -- flags
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//
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//----------------------------------------------------------------------------
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SCODE STDMETHODCALLTYPE HtmlPropIFilter::Init(
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ULONG grfFlags,
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ULONG cAttributes,
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FULLPROPSPEC const * aAttributes,
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ULONG * pFlags )
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{
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return _pHtmlFilter->Init( grfFlags, cAttributes, aAttributes, pFlags );
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} //Init
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//+-------------------------------------------------------------------------
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//
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// Method: HtmlPropIFilter::GetChunk
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//
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// Synopsis: Gets the next chunk
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//
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// Arguments: [pStat] -- Chunk info
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//
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//--------------------------------------------------------------------------
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SCODE STDMETHODCALLTYPE HtmlPropIFilter::GetChunk(
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STAT_CHUNK * pStat )
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{
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SCODE sc = _pHtmlFilter->GetChunk( pStat );
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// If we got a chunk, it's a value chunk, and it's a meta property with
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// a string identifier, store away the name so it's available when the
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// value is retrieved.
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if ( ( SUCCEEDED( sc ) ) &&
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( 0 != ( pStat->flags & CHUNK_VALUE ) ) &&
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( PRSPEC_LPWSTR == pStat->attribute.psProperty.ulKind ) &&
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( CLSID_MetaProperty == pStat->attribute.guidPropSet ) &&
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( 0 != pStat->attribute.psProperty.lpwstr ) &&
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( wcslen( pStat->attribute.psProperty.lpwstr ) < cwcMaxName ) )
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{
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_fMetaProperty = TRUE;
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wcscpy( _awcName, pStat->attribute.psProperty.lpwstr );
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}
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else
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{
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_fMetaProperty = FALSE;
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}
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return sc;
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} //GetChunk
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//+-------------------------------------------------------------------------
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//
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// Function: ParseDateTime
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//
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// Synopsis: Parse the string and return a date/time
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// n.b. If the date is ill-formed and this function returns
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// an error code, the file will be unfiltered, and can be
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// found by using the unfiltered admin query.
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// The date parsing is very strict.
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// Times are in any time zone you like, but .htx will interpret
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// all dates as GMT. You can always use .asp script to munge
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// dates as you like.
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//
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// Arguments: [pwcDate] -- String form of the date/time
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// [ft] -- Returns the date/time
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//
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//--------------------------------------------------------------------------
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SCODE ParseDateTime(
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WCHAR * pwcDate,
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FILETIME & ft )
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{
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SYSTEMTIME stValue = { 0, 0, 0, 0, 0, 0, 0, 0 };
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// Some day add more flexible date formats!
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int cItems = swscanf( pwcDate,
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L"%4hd/%2hd/%2hd %2hd:%2hd:%2hd:%3hd",
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&stValue.wYear,
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&stValue.wMonth,
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&stValue.wDay,
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&stValue.wHour,
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&stValue.wMinute,
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&stValue.wSecond,
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&stValue.wMilliseconds );
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if ( 1 == cItems )
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cItems = swscanf( pwcDate,
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L"%4hd-%2hd-%2hd %2hd:%2hd:%2hd:%3hd",
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&stValue.wYear,
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&stValue.wMonth,
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&stValue.wDay,
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&stValue.wHour,
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&stValue.wMinute,
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&stValue.wSecond,
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&stValue.wMilliseconds );
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if( cItems != 3 && cItems != 6 && cItems != 7)
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return E_INVALIDARG;
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// Make a sensible split for Year 2000
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if (stValue.wYear < 30)
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stValue.wYear += 2000;
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else if (stValue.wYear < 100)
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stValue.wYear += 1900;
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if( !SystemTimeToFileTime( &stValue, &ft ) )
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return HRESULT_FROM_WIN32( GetLastError() );
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return S_OK;
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} //ParseDateTime
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//+-------------------------------------------------------------------------
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//
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// Function: Translate
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//
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// Synopsis: Translates the string property value to the given type
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//
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// Arguments: [v] -- The variant to translate
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// [dbType] -- The resulting data type
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//
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//--------------------------------------------------------------------------
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SCODE Translate(
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PROPVARIANT & v,
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DBTYPE dbType )
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{
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PROPVARIANT varCopy = v;
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BOOL fChange = TRUE;
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SCODE sc = S_OK;
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WCHAR *p = v.pwszVal;
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// The source must be a string variant
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if ( 0 == p || VT_LPWSTR != v.vt )
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return S_OK;
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v.vt = dbType;
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// Eat leading white space
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while ( ' ' == *p )
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p++;
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int base = 10;
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// Is this a hex number?
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if ( '0' == *p && ( 'x' == *(p+1) || 'X' == *(p+1) ) )
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{
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p += 2;
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base = 16;
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}
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WCHAR * pwc;
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// DBTYPE_I1 isn't an official OLE property type, so it isn't supported.
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//
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// Note: range checking could be added and a failure code could be
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// returned if the check failed. That would put the file in the
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// unfiltered list.
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switch ( dbType )
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{
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case DBTYPE_UI1 :
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v.bVal = (BYTE) wcstoul( v.pwszVal, &pwc, base );
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break;
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case DBTYPE_I2 :
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v.iVal = (SHORT) wcstol( v.pwszVal, &pwc, base );
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break;
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case DBTYPE_UI2 :
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v.uiVal = (USHORT) wcstoul( v.pwszVal, &pwc, base );
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break;
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case DBTYPE_I4 :
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v.lVal = (LONG) wcstol( v.pwszVal, &pwc, base );
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break;
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case DBTYPE_UI4 :
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v.ulVal = (ULONG) wcstoul( v.pwszVal, &pwc, base );
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break;
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case DBTYPE_I8 :
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swscanf( v.pwszVal, L"%I64d", &v.fltVal );
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break;
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case DBTYPE_UI8 :
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swscanf( v.pwszVal, L"%I64u", &v.fltVal );
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break;
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case DBTYPE_R4 :
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swscanf( v.pwszVal, L"%f", &v.fltVal );
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break;
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case DBTYPE_R8 :
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swscanf( v.pwszVal, L"%lf", &v.dblVal );
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break;
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case DBTYPE_BOOL :
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// If the first character is t or 1, assume VARIANT_TRUE
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if ( 't' == *v.pwszVal ||
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'T' == *v.pwszVal ||
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'1' == *v.pwszVal )
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v.boolVal = VARIANT_TRUE;
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else
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v.boolVal = VARIANT_FALSE;
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break;
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case VT_FILETIME :
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sc = ParseDateTime( p, v.filetime );
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break;
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default :
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// leave the property as it was
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fChange = FALSE;
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v.vt = varCopy.vt;
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break;
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}
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// Free the memory for the (now converted) string value
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if ( fChange )
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PropVariantClear( &varCopy );
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return sc;
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} //Translate
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//+-------------------------------------------------------------------------
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//
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// Method: HtmlPropIFilter::GetValue
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//
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// Synopsis: Retrieves the current value
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//
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// Arguments: [ppPropValue] -- Where the value is stored
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//
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//--------------------------------------------------------------------------
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SCODE STDMETHODCALLTYPE HtmlPropIFilter::GetValue(
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PROPVARIANT ** ppPropValue )
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{
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SCODE sc = _pHtmlFilter->GetValue( ppPropValue );
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// Is this a value that must be translated?
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if ( SUCCEEDED( sc ) && _fMetaProperty && 0 != *ppPropValue )
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{
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// lookup the datatype of the translation based on property name
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for ( ULONG i = 0; i < g_cEntries; i++ )
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{
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if ( !_wcsicmp( g_aEntries[i].awcName, _awcName ) )
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{
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// found it, so translate it
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sc = Translate( **ppPropValue,
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g_aEntries[i].dbType );
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break;
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}
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}
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}
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return sc;
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} //GetValue
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//+-------------------------------------------------------------------------
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//
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// Method: HtmlPropIFilter::GetText
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//
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// Synopsis: Gets text from the filter
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//
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// Arguments: [pcwcBuffer] -- Returns the # of WCHARs returned
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// [awcBuffer] -- Where text is written
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//
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//--------------------------------------------------------------------------
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SCODE STDMETHODCALLTYPE HtmlPropIFilter::GetText(
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ULONG * pcwcBuffer,
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WCHAR * awcBuffer )
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{
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return _pHtmlFilter->GetText( pcwcBuffer, awcBuffer );
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} //GetText
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//+-------------------------------------------------------------------------
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//
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// Method: HtmlPropIFilter::BindRegion
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//
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//--------------------------------------------------------------------------
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SCODE STDMETHODCALLTYPE HtmlPropIFilter::BindRegion(
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FILTERREGION origPos,
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REFIID riid,
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void ** ppunk )
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{
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return _pHtmlFilter->BindRegion( origPos, riid, ppunk );
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} //BindRegion
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//+-------------------------------------------------------------------------
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//
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// Method: HtmlPropIFilter::GetClassID
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//
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//--------------------------------------------------------------------------
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SCODE STDMETHODCALLTYPE HtmlPropIFilter::GetClassID( CLSID * pClassID )
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{
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*pClassID = CLSID_HtmlPropIFilter;
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return S_OK;
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} //GetClassID
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//+-------------------------------------------------------------------------
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//
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// Method: HtmlPropIFilter::IsDirty
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//
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//--------------------------------------------------------------------------
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SCODE STDMETHODCALLTYPE HtmlPropIFilter::IsDirty()
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{
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return S_FALSE;
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} //IsDirty
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//+-------------------------------------------------------------------------
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//
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// Method: HtmlPropIFilter::Load
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//
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// Synopsis: Loads the file for the filter
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//
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// Arguments: [pszFileName] -- Name of the file
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// [dwMode] -- Mode of the load
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//
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//--------------------------------------------------------------------------
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SCODE STDMETHODCALLTYPE HtmlPropIFilter::Load(
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|
LPCWSTR pszFileName,
|
|
DWORD dwMode)
|
|
{
|
|
//
|
|
// Get html filter class object and class factory
|
|
//
|
|
|
|
IClassFactory * pcf;
|
|
SCODE sc = E_FAIL;
|
|
|
|
if ( 0 != g_hHtmlDll )
|
|
{
|
|
LPFNGETCLASSOBJECT pfn = (LPFNGETCLASSOBJECT)GetProcAddress(
|
|
g_hHtmlDll,
|
|
"DllGetClassObject" );
|
|
|
|
if ( 0 != pfn )
|
|
sc = (pfn)( CLSID_HtmlIFilter, IID_IClassFactory, (void **)&pcf );
|
|
}
|
|
|
|
if ( SUCCEEDED(sc) )
|
|
{
|
|
// Get an html filter
|
|
|
|
sc = pcf->CreateInstance( 0, IID_IFilter, (void **)&_pHtmlFilter );
|
|
pcf->Release();
|
|
|
|
if ( SUCCEEDED(sc) )
|
|
{
|
|
// Load the file
|
|
|
|
sc = _pHtmlFilter->QueryInterface( IID_IPersistFile,
|
|
(void **) &_pPersistFile );
|
|
|
|
if ( SUCCEEDED(sc) )
|
|
{
|
|
sc = _pPersistFile->Load( pszFileName, dwMode );
|
|
}
|
|
else
|
|
{
|
|
_pHtmlFilter->Release();
|
|
_pHtmlFilter = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
return sc;
|
|
} //Load
|
|
|
|
//+-------------------------------------------------------------------------
|
|
//
|
|
// Method: HtmlPropIFilter::Save
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
SCODE STDMETHODCALLTYPE HtmlPropIFilter::Save(
|
|
LPCWSTR pszFileName,
|
|
BOOL fRemember )
|
|
{
|
|
return E_FAIL;
|
|
} //Save
|
|
|
|
//+-------------------------------------------------------------------------
|
|
//
|
|
// Method: HtmlPropIFilter::SaveCompleted
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
SCODE STDMETHODCALLTYPE HtmlPropIFilter::SaveCompleted(
|
|
LPCWSTR pszFileName )
|
|
{
|
|
return E_FAIL;
|
|
} //SaveCompleted
|
|
|
|
//+-------------------------------------------------------------------------
|
|
//
|
|
// Method: HtmlPropIFilter::GetcurFile
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
SCODE STDMETHODCALLTYPE HtmlPropIFilter::GetCurFile(
|
|
LPWSTR * ppszFileName )
|
|
{
|
|
return _pPersistFile->GetCurFile( ppszFileName );
|
|
} //GetCurFile
|
|
|
|
//+-------------------------------------------------------------------------
|
|
//
|
|
// Function: ParsePropertyFile
|
|
//
|
|
// Synopsis: Parses a property file and stores datatypes for html meta
|
|
// properties. Property files are in .idq format, with a
|
|
// [Names] section.
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
void ParsePropertyFile()
|
|
{
|
|
// already parsed the file?
|
|
|
|
if ( g_cEntries > 0 )
|
|
return;
|
|
|
|
// open the property file in the system32 directory
|
|
|
|
WCHAR awcFile[ MAX_PATH ];
|
|
GetSystemDirectory( awcFile, sizeof awcFile / sizeof WCHAR );
|
|
|
|
wcscat( awcFile, L"\\" );
|
|
wcscat( awcFile, pwcHTMLPropertyFile );
|
|
|
|
FILE *file = _wfopen( awcFile, L"r" );
|
|
|
|
if ( 0 != file )
|
|
{
|
|
WCHAR awc[ 500 ];
|
|
BOOL fNames = FALSE;
|
|
|
|
// for each line of the file
|
|
|
|
while ( fgetws( awc, sizeof awc, file ) )
|
|
{
|
|
int cwc = wcslen( awc );
|
|
if ( 0 == cwc )
|
|
continue;
|
|
|
|
// trim off trailing newline
|
|
|
|
if ( awc[ cwc - 1 ] == '\n' )
|
|
{
|
|
cwc--;
|
|
awc[cwc] = 0;
|
|
}
|
|
|
|
// is this a section line?
|
|
|
|
if ( '[' == awc[0] )
|
|
{
|
|
fNames = !_wcsicmp( L"[names]", awc );
|
|
}
|
|
else if ( ( '#' != awc[0] ) && fNames )
|
|
{
|
|
// parse the data type
|
|
|
|
WCHAR *pwcType = wcschr( awc, L'(' );
|
|
|
|
if ( 0 != pwcType )
|
|
{
|
|
pwcType++;
|
|
while ( ' ' == *pwcType )
|
|
pwcType++;
|
|
|
|
WCHAR *pwcX = wcstok( pwcType, L", )" );
|
|
|
|
if ( 0 != pwcType )
|
|
{
|
|
// lookup the type in the list of types
|
|
|
|
for ( ULONG i = 0; i < cTypeEntries; i++ )
|
|
{
|
|
if ( !_wcsicmp( aTypeEntries[i].awcName,
|
|
pwcType ) )
|
|
break;
|
|
}
|
|
|
|
// got the type, so find the guid
|
|
|
|
if ( i < cTypeEntries )
|
|
{
|
|
// find the property guid
|
|
|
|
pwcType += 1 + wcslen( pwcType );
|
|
|
|
WCHAR *pwcName = wcschr( pwcType, '=' );
|
|
|
|
if ( pwcName )
|
|
{
|
|
pwcName++;
|
|
while ( ' ' == *pwcName )
|
|
pwcName++;
|
|
|
|
// is this the html guid?
|
|
|
|
if ( !_wcsnicmp( pwcName,
|
|
pwcMetaProperty,
|
|
wcslen( pwcMetaProperty ) ) )
|
|
{
|
|
// find the property name
|
|
|
|
pwcName = wcschr( pwcName, ' ' );
|
|
if ( pwcName )
|
|
{
|
|
// skip white space
|
|
|
|
while ( ' ' == *pwcName )
|
|
pwcName++;
|
|
|
|
// got it -- save it away if it fits
|
|
|
|
if ( ( wcslen( pwcName ) < cwcMaxName ) &&
|
|
( g_cEntries < maxEntries ) )
|
|
{
|
|
wcscpy( g_aEntries[g_cEntries].awcName,
|
|
pwcName );
|
|
g_aEntries[g_cEntries++].dbType =
|
|
aTypeEntries[i].dbType;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
fclose( file );
|
|
}
|
|
} //ParsePropertyFile
|
|
|
|
//+-------------------------------------------------------------------------
|
|
//
|
|
// Method: HtmlPropIFilterCF::HtmlPropIFilterCF
|
|
//
|
|
// Synopsis: HTML Property IFilter class factory constructor
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
HtmlPropIFilterCF::HtmlPropIFilterCF()
|
|
{
|
|
_lRefs = 1;
|
|
|
|
long c = InterlockedIncrement( &g_cInstances );
|
|
|
|
if ( 0 == g_hHtmlDll && 1 == c )
|
|
{
|
|
// load the html filter dll
|
|
|
|
g_hHtmlDll = LoadLibrary( pwcHTMLFilter );
|
|
|
|
// load the property information
|
|
|
|
ParsePropertyFile();
|
|
}
|
|
} //HtmlPropIFilterCF
|
|
|
|
//+-------------------------------------------------------------------------
|
|
//
|
|
// Method: HtmlPropIFilterCF::~HtmlPropIFilterCF
|
|
//
|
|
// Synopsis: HTML IFilter class factory constructor
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
HtmlPropIFilterCF::~HtmlPropIFilterCF()
|
|
{
|
|
long c = InterlockedDecrement( &g_cInstances );
|
|
|
|
if ( 0 != g_hHtmlDll && 0 == c )
|
|
{
|
|
FreeLibrary( g_hHtmlDll );
|
|
g_hHtmlDll = 0;
|
|
}
|
|
} //~HtmlPropIFilterCF
|
|
|
|
//+-------------------------------------------------------------------------
|
|
//
|
|
// Method: HtmlPropIFilterCF::QueryInterface
|
|
//
|
|
// Synopsis: Rebind to other interface
|
|
//
|
|
// Arguments: [riid] -- IID of new interface
|
|
// [ppvObject] -- New interface * returned here
|
|
//
|
|
// Returns: S_OK if bind succeeded, E_NOINTERFACE if bind failed
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
SCODE STDMETHODCALLTYPE HtmlPropIFilterCF::QueryInterface(
|
|
REFIID riid,
|
|
void ** ppvObject )
|
|
{
|
|
if ( IID_IClassFactory == riid )
|
|
*ppvObject = (IUnknown *) (IClassFactory *) this;
|
|
else if ( IID_IUnknown == riid )
|
|
*ppvObject = (IUnknown *) (IPersist *) this;
|
|
else
|
|
{
|
|
*ppvObject = 0;
|
|
return E_NOINTERFACE;
|
|
}
|
|
|
|
AddRef();
|
|
return S_OK;
|
|
} //QueryInterface
|
|
|
|
//+-------------------------------------------------------------------------
|
|
//
|
|
// Method: HtmlPropIFilterCF::AddRef
|
|
//
|
|
// Synopsis: Increments refcount
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
ULONG STDMETHODCALLTYPE HtmlPropIFilterCF::AddRef()
|
|
{
|
|
return InterlockedIncrement( &_lRefs );
|
|
} //AddRef
|
|
|
|
//+-------------------------------------------------------------------------
|
|
//
|
|
// Method: HtmlPropIFilterCF::Release
|
|
//
|
|
// Synopsis: Decrement refcount. Delete if necessary.
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
ULONG STDMETHODCALLTYPE HtmlPropIFilterCF::Release()
|
|
{
|
|
long lTmp = InterlockedDecrement( &_lRefs );
|
|
|
|
if ( 0 == lTmp )
|
|
delete this;
|
|
|
|
return lTmp;
|
|
} //Release
|
|
|
|
//+-------------------------------------------------------------------------
|
|
//
|
|
// Method: HtmlPropIFilterCF::CreateInstance
|
|
//
|
|
// Synopsis: Creates new HtmlPropIFilter object
|
|
//
|
|
// Arguments: [pUnkOuter] -- 'Outer' IUnknown
|
|
// [riid] -- Interface to bind
|
|
// [ppvObject] -- Interface returned here
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
SCODE STDMETHODCALLTYPE HtmlPropIFilterCF::CreateInstance(
|
|
IUnknown * pUnkOuter,
|
|
REFIID riid,
|
|
void * * ppvObject )
|
|
{
|
|
*ppvObject = 0;
|
|
|
|
HtmlPropIFilter * pFilter = new HtmlPropIFilter;
|
|
|
|
if ( 0 == pFilter )
|
|
return E_OUTOFMEMORY;
|
|
|
|
SCODE sc = pFilter->QueryInterface( riid , ppvObject );
|
|
|
|
pFilter->Release();
|
|
|
|
return sc;
|
|
} //CreateInstance
|
|
|
|
//+-------------------------------------------------------------------------
|
|
//
|
|
// Method: HtmlPropIFilterCF::LockServer
|
|
//
|
|
// Synopsis: Force class factory to remain loaded
|
|
//
|
|
// Arguments: [fLock] -- TRUE if locking, FALSE if unlocking
|
|
//
|
|
// Returns: S_OK
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
SCODE STDMETHODCALLTYPE HtmlPropIFilterCF::LockServer(BOOL fLock)
|
|
{
|
|
if(fLock)
|
|
InterlockedIncrement( &g_cInstances );
|
|
else
|
|
InterlockedDecrement( &g_cInstances );
|
|
|
|
return S_OK;
|
|
} //LockServer
|
|
|
|
//+-------------------------------------------------------------------------
|
|
//
|
|
// Function: DllGetClassObject
|
|
//
|
|
// Synopsis: Ole DLL load class routine
|
|
//
|
|
// Arguments: [cid] -- Class to load
|
|
// [iid] -- Interface to bind to on class object
|
|
// [ppvObj] -- Interface pointer returned here
|
|
//
|
|
// Returns: HTML Property filter class factory
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
extern "C" SCODE STDMETHODCALLTYPE DllGetClassObject(
|
|
REFCLSID cid,
|
|
REFIID iid,
|
|
void ** ppvObj )
|
|
{
|
|
IUnknown * pUnk = 0;
|
|
|
|
if ( CLSID_HtmlPropIFilter == cid ||
|
|
CLSID_HtmlPropClass == cid )
|
|
{
|
|
pUnk = new HtmlPropIFilterCF;
|
|
|
|
if ( 0 == pUnk )
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
else
|
|
{
|
|
*ppvObj = 0;
|
|
return E_NOINTERFACE;
|
|
}
|
|
|
|
SCODE sc = pUnk->QueryInterface( iid, ppvObj );
|
|
|
|
pUnk->Release();
|
|
|
|
return sc;
|
|
} //DllGetClassObject
|
|
|
|
//+-------------------------------------------------------------------------
|
|
//
|
|
// Method: DllCanUnloadNow
|
|
//
|
|
// Synopsis: Notifies DLL to unload (cleanup global resources)
|
|
//
|
|
// Returns: S_OK if it is acceptable for caller to unload DLL.
|
|
//
|
|
//--------------------------------------------------------------------------
|
|
|
|
extern "C" SCODE STDMETHODCALLTYPE DllCanUnloadNow( void )
|
|
{
|
|
if ( 0 == g_cInstances )
|
|
return S_OK;
|
|
else
|
|
return S_FALSE;
|
|
} //DllCanUnloadNow
|
|
|
|
SClassEntry const aHtmlPropClasses[] =
|
|
{
|
|
{ L".hhc", L"hhcfile", L"HHC file", L"{7f73b8f6-c19c-11d0-aa66-00c04fc2eddc}", L"HHC file" },
|
|
{ L".htm", L"htmlfile", L"HTML file", L"{25336920-03f9-11cf-8fd0-00aa00686f13}", L"HTML file" },
|
|
{ L".html", L"htmlfile", L"HTML file", L"{25336920-03f9-11cf-8fd0-00aa00686f13}", L"HTML file" },
|
|
{ L".htx", L"htmlfile", L"HTML file", L"{25336920-03f9-11cf-8fd0-00aa00686f13}", L"HTML file" },
|
|
{ L".stm", L"htmlfile", L"HTML file", L"{25336920-03f9-11cf-8fd0-00aa00686f13}", L"HTML file" },
|
|
{ L".htw", L"htmlfile", L"HTML file", L"{25336920-03f9-11cf-8fd0-00aa00686f13}", L"HTML file" },
|
|
{ L".asp", L"asp_auto_file", L"ASP auto file", L"{bd70c020-2d24-11d0-9110-00004c752752}", L"ASP auto file" },
|
|
};
|
|
|
|
SHandlerEntry const HtmlPropHandler =
|
|
{
|
|
L"{c694d910-a439-11d1-a903-00e098006ed3}",
|
|
L"html property persistent handler",
|
|
L"{f4309e80-a1db-11d1-a8fb-00e098006ed3}",
|
|
};
|
|
|
|
SFilterEntry const HtmlPropFilter =
|
|
{
|
|
L"{f4309e80-a1db-11d1-a8fb-00e098006ed3}",
|
|
L"html property filter",
|
|
L"HtmlProp.dll",
|
|
L"Both"
|
|
};
|
|
|
|
DEFINE_DLLREGISTERFILTER( HtmlPropHandler, HtmlPropFilter, aHtmlPropClasses )
|
|
|