822 lines
22 KiB
C++
822 lines
22 KiB
C++
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1996.
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// File: hlinkez.cxx
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// Contents:
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// Classes:
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// Functions:
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// History:
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// 5-15-96 Ramesh G - Major modifications
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// 5-17-96 Ramesh G - Added Frames support
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// Ramesh G - Modified variable names to Hungarian Notation
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// 6-19-96 Ramesh G - Modifications
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// 7-25-96 Ramesh G - Modifications
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// 8-05-96 Ramesh G - Merged HlinkSimple...String() and Moniker()
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// HlinkSimpleNavigateToString() creates the moniker
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// and calls HlinkSimpleNavigateToMoniker()
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#define USE_SYSTEM_URL_MONIKER
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#define INITGUID
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#define STR_SIZE 20
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#include "hlink.h"
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#include "ocidl.h"
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#include "docobj.h"
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#include "exdisp.h"
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#include "shellapi.h"
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#include "servprov.h"
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#include "urlhlink.h"
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#include "htiface.h"
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#include "wininet.h"
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#include <shlwapi.h>
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#include <shlwapip.h>
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#include "sdll.hxx"
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class HLinkDll
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{
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public:
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HLinkDll();
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HRESULT HlinkCreateFromMoniker(
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IMoniker* pmkSource,
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LPCWSTR szLocation,
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LPCWSTR szFriendlyName,
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IHlinkSite* phlSite,
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DWORD dwSiteData,
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IUnknown* punkOuter,
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REFIID riid,
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void** ppv);
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private:
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BOOL LoadFunc( LPCSTR lpProcName, FARPROC & fp );
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typedef HRESULT (STDAPICALLTYPE * LPFNHlinkCreateFromMoniker)(
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IMoniker* pmkSource,
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LPCWSTR szLocation,
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LPCWSTR szFriendlyName,
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IHlinkSite* phlSite,
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DWORD dwSiteData,
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IUnknown* punkOuter,
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REFIID riid,
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void** ppv);
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LPFNHlinkCreateFromMoniker m_lpfnHlinkCreateFromMoniker;
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HMODULE m_hmodule;
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BOOL m_error;
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};
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inline HRESULT HLinkDll::HlinkCreateFromMoniker(
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IMoniker* pmkSource,
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LPCWSTR szLocation,
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LPCWSTR szFriendlyName,
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IHlinkSite* phlSite,
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DWORD dwSiteData,
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IUnknown* punkOuter,
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REFIID riid,
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void** ppv)
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{
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if( !LoadFunc("HlinkCreateFromMoniker",*(FARPROC*)&m_lpfnHlinkCreateFromMoniker) )
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return(E_FAIL);
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return m_lpfnHlinkCreateFromMoniker(
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pmkSource,
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szLocation,
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szFriendlyName,
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phlSite,
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dwSiteData,
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punkOuter,
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riid,
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ppv);
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}
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HLinkDll::HLinkDll()
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{
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m_hmodule = 0;
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m_error = 0;
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m_lpfnHlinkCreateFromMoniker = 0;
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}
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#if 0
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HLinkDll::~HLinkDll()
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{
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if( m_hmodule )
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::FreeLibrary( m_hmodule );
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}
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#endif
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BOOL HLinkDll::LoadFunc( LPCSTR lpProcName, FARPROC & fp )
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{
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if( m_error )
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return(0);
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if( fp )
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return(1);
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if( !m_hmodule )
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{
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m_hmodule = ::LoadLibrary( "HLINK.DLL" );
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if( !m_hmodule )
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{
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m_error = 1;
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return(0);
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}
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}
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fp = ::GetProcAddress( m_hmodule, lpProcName );
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return( fp != 0 );
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}
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static HLinkDll hlink;
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static int wclen(LPCWSTR szStr)
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{
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int cbStr=0;
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if(szStr!=NULL)
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while(szStr[cbStr]!=NULL)
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++cbStr;
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return cbStr;
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}
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static HRESULT GetAnInterface
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(
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IUnknown * punk,
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const IID & riid,
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void ** pout,
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BOOL bCheckServiceProvider,
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const IID & siid,
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const IID & siid_riid,
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void ** sout
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)
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{
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IOleObject * oleObj = 0;
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IOleClientSite * oleSite = 0;
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IOleContainer * container = 0;
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IUnknown * service = 0;
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HRESULT hr = E_FAIL;
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// Initialize passed in interface pointers: calling code assumes NULL for failure
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if(pout)
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*pout = NULL;
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if(sout)
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*sout = NULL;
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if(punk)
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hr = punk->QueryInterface( IID_IOleObject, (void **)&oleObj );
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// BUBUG: I think this returns a wrong hr if QS fails but the QI passes - jp
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while( SUCCEEDED(hr) && oleObj )
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{
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if( oleSite )
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{
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//oleSite->Release();
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oleSite = 0;
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}
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hr = oleObj->GetClientSite(&oleSite);
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if( FAILED(hr) || !oleSite)
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break;
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if( bCheckServiceProvider)
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{
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IServiceProvider * servProv;
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hr = oleSite->QueryInterface( IID_IServiceProvider, (void**)&servProv);
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if( SUCCEEDED(hr) )
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{
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hr = servProv->QueryService
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(
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siid,
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siid_riid,
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(void **)&service
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);
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servProv->Release();
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}
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if( SUCCEEDED(hr) )
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{
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bCheckServiceProvider = FALSE;
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hr = service->QueryInterface( riid, pout );
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}
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if( SUCCEEDED(hr) )
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break;
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}
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if( container )
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{
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container->Release();
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container = 0;
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}
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hr = oleSite->GetContainer( &container );
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if( FAILED(hr) )
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break;
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hr = container->QueryInterface( riid, pout );
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if( SUCCEEDED(hr) )
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break;
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oleObj->Release();
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oleObj = 0;
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hr = container->QueryInterface( IID_IOleObject, (void**)&oleObj );
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}
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if( oleSite )
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{
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oleSite->Release();
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oleSite = 0;
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}
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if( oleObj )
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oleObj->Release();
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if( container )
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container->Release();
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if( service )
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{
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if (sout)
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*sout = service;
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else
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service->Release();
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}
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return( hr );
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}
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// GetUrlScheme() returns one of the URL_SCHEME_* constants as
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// defined in shlwapip.h
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// example "http://foo" returns URL_SCHEME_HTTP
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static DWORD GetUrlSchemeW(IN LPCWSTR pcszUrl)
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{
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if(pcszUrl)
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{
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PARSEDURLW pu;
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pu.cbSize = sizeof(pu);
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if(SUCCEEDED(ParseURLW(pcszUrl, &pu)))
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return pu.nScheme;
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}
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return URL_SCHEME_INVALID;
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}
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BOOL IsSpecialUrl(WCHAR *pchURL)
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{
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UINT uProt;
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uProt = GetUrlSchemeW(pchURL);
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return (URL_SCHEME_JAVASCRIPT == uProt || URL_SCHEME_VBSCRIPT == uProt || URL_SCHEME_ABOUT == uProt);
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}
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HRESULT WrapSpecialUrlFlat(LPWSTR pszUrl, DWORD cchUrl)
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{
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HRESULT hr = S_OK;
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if (IsSpecialUrl(pszUrl))
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{
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// If this is javascript:, vbscript: or about:, append the
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// url of this document so that on the other side we can
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// decide whether or not to allow script execution.
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// QFE 2735 (Georgi XDomain): [alanau]
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// If the special URL contains an %00 sequence, then it will be converted to a Null char when
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// encoded. This will effectively truncate the Security ID. For now, simply disallow this
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// sequence, and display a "Permission Denied" script error.
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if (StrStrW(pszUrl, L"%00"))
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{
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hr = E_ACCESSDENIED;
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}
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else
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{
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// munge the url in place
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// someone could put in a string like this:
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// %2501 OR %252501 OR %25252501
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// which, depending on the number of decoding steps, will bypass security
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// so, just keep decoding while there are %s and the string is getting shorter
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int nPreviousLen = 0;
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while ( (nPreviousLen != lstrlenW(pszUrl)) && (StrChrW(pszUrl, L'%')))
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{
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nPreviousLen = lstrlenW(pszUrl);
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int nNumPercents;
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int nNumPrevPercents = 0;
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// Reduce the URL
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for (;;)
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{
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// Count the % signs.
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nNumPercents = 0;
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WCHAR *pch = pszUrl;
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while (pch = StrChrW(pch, L'%'))
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{
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pch++;
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nNumPercents++;
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}
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// If the number of % signs has changed, we've reduced the URL one iteration.
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if (nNumPercents != nNumPrevPercents)
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{
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WCHAR szBuf[INTERNET_MAX_URL_LENGTH];
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DWORD dwSize;
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// Encode the URL
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hr = CoInternetParseUrl(pszUrl,
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PARSE_ENCODE,
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0,
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szBuf,
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INTERNET_MAX_URL_LENGTH,
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&dwSize,
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0);
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StrCpyNW(pszUrl, szBuf, cchUrl);
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nNumPrevPercents = nNumPercents;
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}
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else
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{
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// The URL is fully reduced. Break out of loop.
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break;
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}
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}
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}
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// Now scan for '\1' characters.
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if (StrChrW(pszUrl, L'\1'))
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{
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// If there are '\1' characters, we can't guarantee the safety. Put up "Permission Denied".
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hr = E_ACCESSDENIED;
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}
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}
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}
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return hr;
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}
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static HRESULT GetAMoniker
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(
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IUnknown * pUnk,
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LPCWSTR szTarget,
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IMoniker * * ppMoniker
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)
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{
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HRESULT hr;
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IBindHost * pBindHost = 0;
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hr = GetAnInterface
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(
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pUnk,
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IID_IBindHost,
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(void**)&pBindHost,
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TRUE,
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IID_IBindHost,
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IID_IBindHost,
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NULL
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);
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if( pBindHost )
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{
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hr = pBindHost->CreateMoniker((LPWSTR)szTarget,NULL,ppMoniker,0);
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pBindHost->Release();
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}
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else
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hr = ::CreateURLMoniker(0,szTarget,ppMoniker);
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return(hr);
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}
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STDAPI HlinkSimpleNavigateToString
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(
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/* [in] */ LPCWSTR szTarget, // required - target document - null if local jump w/in doc
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/* [in] */ LPCWSTR szLocation, // optional, for navigation into middle of a doc
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/* [in] */ LPCWSTR szTargetFrame, // optional, for targeting frame-sets
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/* [in] */ IUnknown *pUnk, // required - we'll search this for other necessary interfaces
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/* [in] */ IBindCtx *pBndctx, // optional. caller may register an IBSC in this
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/* [in] */ IBindStatusCallback * pBscb,
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/* [in] */ DWORD grfHLNF, // flags (TBD - HadiP needs to define this correctly?)
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/* [in] */ DWORD dwReserved // for future use, must be NULL
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)
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{
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IWebBrowserApp *pExplorer = 0;
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IHlinkFrame *pHlframe = 0;
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ITargetFrame *pTargetFrame = 0;
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IMoniker *pMoniker = 0;
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HRESULT hr = S_OK;
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if ( szTarget && *szTarget )
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hr = GetAMoniker( pUnk, szTarget, &pMoniker );
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if ( SUCCEEDED(hr) )
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hr = HlinkSimpleNavigateToMoniker (
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pMoniker,
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szLocation,
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szTargetFrame,
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pUnk,
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pBndctx,
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pBscb,
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grfHLNF,
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dwReserved );
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if ( pMoniker )
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pMoniker->Release();
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return( hr );
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}
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STDAPI HlinkSimpleNavigateToMoniker
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(
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/* [in] */ IMoniker *pmkTarget, // required - target document - (may be null if local jump w/in doc)
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/* [in] */ LPCWSTR szLocation, // optional, for navigation into middle of a doc
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/* [in] */ LPCWSTR szTargetFrame, // optional, for targeting frame-sets
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/* [in] */ IUnknown *pUnk, // required - we'll search this for other necessary interfaces
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/* [in] */ IBindCtx *pBndctx, // optional. caller may register an IBSC in this
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/* [in] */ IBindStatusCallback * pBscb,
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/* [in] */ DWORD grfHLNF, // flags
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/* [in] */ DWORD dwReserved // for future use, must be NULL
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)
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{
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IWebBrowserApp * pExplorer = 0;
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IHlinkFrame * pHlframe = 0;
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ITargetFrame * pTargetFrame = 0;
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CShellDll sdll;
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HRESULT hr, htemp;
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if (pmkTarget == NULL)
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{
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if (szLocation && *szLocation)
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{
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grfHLNF |= HLNF_INTERNALJUMP;
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hr = S_OK;
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}
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else
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return E_INVALIDARG; //no location specified for internal jump
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}
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else
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{
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DWORD dwId;
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if (SUCCEEDED(pmkTarget->IsSystemMoniker(&dwId)) &&
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MKSYS_URLMONIKER == dwId)
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{
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LPWSTR pszUrl;
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if (SUCCEEDED(pmkTarget->GetDisplayName(NULL, NULL, &pszUrl)))
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{
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HRESULT hrSecure = WrapSpecialUrlFlat(pszUrl, lstrlenW(pszUrl) + 1);
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CoTaskMemFree(pszUrl);
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if (FAILED(hrSecure))
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return hrSecure;
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}
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}
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}
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|
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if (pUnk)
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hr = GetAnInterface
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(
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pUnk,
|
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IID_IWebBrowserApp,
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(void**)&pExplorer,
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TRUE,
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IID_IHlinkFrame,
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IID_IHlinkFrame,
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(void**)&pHlframe
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);
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|
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IHlink * pLink = 0;
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hr = hlink.HlinkCreateFromMoniker
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(
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pmkTarget,
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szLocation,
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L"TheName",
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0, // hlsite,
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0, NULL,
|
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IID_IHlink,
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(void**)&pLink
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);
|
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if (SUCCEEDED(hr) && pHlframe)
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{
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if (szTargetFrame && *szTargetFrame)
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{
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long len = (lstrlenW(szTargetFrame) + 1) * sizeof(char);
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char szTargetFrameName[STR_SIZE+1];
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len = (len > STR_SIZE) ? STR_SIZE : len;
|
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WideCharToMultiByte(CP_ACP, 0, szTargetFrame, -1, (LPSTR)szTargetFrameName, len, NULL, NULL);
|
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if (lstrcmpi(szTargetFrameName,"_blank") == 0)
|
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grfHLNF |= HLNF_OPENINNEWWINDOW;
|
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else
|
|
{
|
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htemp = GetAnInterface
|
|
(
|
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pUnk,
|
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IID_ITargetFrame,
|
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(void**)&pTargetFrame,
|
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TRUE,
|
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IID_ITargetFrame,
|
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IID_ITargetFrame,
|
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NULL
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);
|
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IUnknown *punkTargetFrame = 0;
|
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if (SUCCEEDED(htemp))
|
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htemp = pTargetFrame->FindFrame(szTargetFrame,
|
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pHlframe,
|
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FINDFRAME_JUSTTESTEXISTENCE,
|
|
&punkTargetFrame);
|
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IHlinkFrame *pTargetHlinkFrame = 0;
|
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if (punkTargetFrame)
|
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{
|
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IServiceProvider *pIsp = 0;
|
|
// Get the IHlinkFrame for the target'ed frame.
|
|
htemp = punkTargetFrame->QueryInterface(IID_IServiceProvider, (LPVOID *)&pIsp);
|
|
if (pIsp != NULL)
|
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{
|
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// BUGBUG: SID_SHLinkFrame should be the guidService
|
|
htemp = pIsp->QueryService(IID_IWebBrowserApp, IID_IHlinkFrame, (LPVOID*) &pTargetHlinkFrame);
|
|
pIsp->Release();
|
|
}
|
|
}
|
|
else
|
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{
|
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grfHLNF |= HLNF_OPENINNEWWINDOW;
|
|
}
|
|
if (punkTargetFrame)
|
|
punkTargetFrame->Release();
|
|
if (pTargetFrame)
|
|
pTargetFrame->Release();
|
|
|
|
if (pTargetHlinkFrame)
|
|
{
|
|
pHlframe->Release();
|
|
pHlframe = pTargetHlinkFrame;
|
|
}
|
|
}
|
|
}
|
|
hr = pHlframe->Navigate(grfHLNF,
|
|
pBndctx,
|
|
pBscb,
|
|
pLink);
|
|
}
|
|
else
|
|
hr = E_FAIL;
|
|
|
|
if ( FAILED(hr) && pHlframe)
|
|
{ // Navigation through pHlframe failed, we will retrieve the
|
|
// corresponding IWebBrowserApp interface and try navigation.
|
|
if (pExplorer)
|
|
{
|
|
pExplorer->Release();
|
|
pExplorer = 0;
|
|
}
|
|
pHlframe->QueryInterface(IID_IWebBrowserApp, (void **)&pExplorer);
|
|
}
|
|
|
|
if (FAILED(hr) && pExplorer && pmkTarget)
|
|
{
|
|
LPOLESTR szTarget;
|
|
hr = pmkTarget->GetDisplayName(pBndctx,NULL,&szTarget);
|
|
|
|
if (SUCCEEDED(hr))
|
|
hr = pExplorer->Navigate(
|
|
szTarget,
|
|
0,
|
|
0,
|
|
0,
|
|
0);
|
|
|
|
CoTaskMemFree(szTarget);
|
|
}
|
|
|
|
// pExplorer->Navigate ShellExecute's
|
|
// We need not ShellExecute when pExplorer is not NULL
|
|
|
|
if (FAILED(hr) && !pExplorer && pmkTarget)
|
|
{
|
|
// Our container does not support hyperlinking. We need to shell execute
|
|
// explorer and go to the link.
|
|
|
|
// We need to translate the string to ANSI
|
|
CHAR szPath[MAX_PATH];
|
|
DWORD cchPath = MAX_PATH;
|
|
LPOLESTR szTarget;
|
|
pmkTarget->GetDisplayName(pBndctx,NULL,&szTarget);
|
|
int cbStr = 2 * wclen(szTarget + 1);
|
|
|
|
char *pszAnsiTarget = new char[cbStr];
|
|
if( !pszAnsiTarget )
|
|
goto cleanup;
|
|
|
|
// ASSERT(pszAnsiTarget)
|
|
|
|
|
|
WideCharToMultiByte(CP_ACP, 0, szTarget, -1, pszAnsiTarget, cbStr, 0, 0);
|
|
pszAnsiTarget[cbStr-1] = '\0';
|
|
|
|
|
|
if(SUCCEEDED(PathCreateFromUrl(pszAnsiTarget, szPath, &cchPath, 0)))
|
|
{
|
|
HANDLE hFile = CreateFile(szPath,
|
|
GENERIC_READ,
|
|
FILE_SHARE_READ,
|
|
NULL,
|
|
OPEN_EXISTING,
|
|
FILE_ATTRIBUTE_NORMAL,
|
|
NULL);
|
|
|
|
if (INVALID_HANDLE_VALUE != hFile)
|
|
{
|
|
CloseHandle(hFile);
|
|
|
|
HINSTANCE hInst = NULL;
|
|
if( S_OK == sdll.Init() )
|
|
hInst = sdll.ShellExecute(
|
|
NULL, "open", "iexplore.exe",
|
|
szPath, NULL, SW_SHOWNORMAL );
|
|
|
|
|
|
// Return value < 32 indicates error
|
|
|
|
hr = ((ULONG_PTR)hInst > 32) ? S_OK : E_FAIL;
|
|
}
|
|
else
|
|
hr = E_FAIL;
|
|
}
|
|
else
|
|
{
|
|
HINSTANCE hInst = NULL;
|
|
if( S_OK == sdll.Init() )
|
|
hInst = sdll.ShellExecute(NULL, "open", "iexplore.exe", (LPCTSTR)pszAnsiTarget, NULL, SW_SHOWNORMAL );
|
|
|
|
// Return value < 32 indicates error
|
|
hr = ((ULONG_PTR)hInst > 32) ? S_OK : E_FAIL;
|
|
}
|
|
cleanup:
|
|
if( pszAnsiTarget )
|
|
delete[] pszAnsiTarget;
|
|
|
|
CoTaskMemFree(szTarget);
|
|
}
|
|
|
|
if (pExplorer)
|
|
pExplorer->Release();
|
|
if (pHlframe)
|
|
pHlframe->Release();
|
|
if (pLink)
|
|
pLink->Release();
|
|
|
|
return( hr );
|
|
}
|
|
|
|
|
|
|
|
// HlinkGoBack
|
|
|
|
STDAPI HlinkGoBack(IUnknown *pUnk)
|
|
{
|
|
IWebBrowserApp * pExplorer = 0;
|
|
IHlinkFrame * pHlframe = 0;
|
|
HRESULT hr;
|
|
|
|
|
|
hr = GetAnInterface
|
|
(
|
|
pUnk,
|
|
IID_IWebBrowserApp,
|
|
(void**)&pExplorer,
|
|
TRUE,
|
|
IID_IHlinkFrame,
|
|
IID_IHlinkFrame,
|
|
(void**)&pHlframe
|
|
);
|
|
|
|
if ( SUCCEEDED(hr) )
|
|
hr = pHlframe->Navigate(HLNF_NAVIGATINGBACK, 0, 0, 0);
|
|
|
|
if ( FAILED(hr) && pExplorer )
|
|
hr = pExplorer->GoBack();
|
|
|
|
if ( pExplorer )
|
|
pExplorer->Release();
|
|
|
|
if ( pHlframe )
|
|
pHlframe->Release();
|
|
|
|
return (hr);
|
|
}
|
|
|
|
|
|
// HlinkGoForward
|
|
|
|
STDAPI HlinkGoForward(IUnknown *pUnk)
|
|
{
|
|
IWebBrowserApp * pExplorer = 0;
|
|
IHlinkFrame * pHlframe = 0;
|
|
HRESULT hr;
|
|
|
|
hr = GetAnInterface
|
|
(
|
|
pUnk,
|
|
IID_IWebBrowserApp,
|
|
(void**)&pExplorer,
|
|
TRUE,
|
|
IID_IHlinkFrame,
|
|
IID_IHlinkFrame,
|
|
(void**)&pHlframe
|
|
);
|
|
|
|
if (SUCCEEDED(hr))
|
|
hr = pHlframe->Navigate(HLNF_NAVIGATINGFORWARD, 0, 0, 0);
|
|
|
|
if ( FAILED(hr) && pExplorer )
|
|
hr = pExplorer->GoForward();
|
|
|
|
if ( pExplorer )
|
|
pExplorer->Release();
|
|
|
|
if ( pHlframe )
|
|
pHlframe->Release();
|
|
|
|
return (hr);
|
|
}
|
|
|
|
|
|
|
|
// HlinkNavigateString
|
|
|
|
|
|
|
|
STDAPI HlinkNavigateString(IUnknown *pUnk, LPCWSTR szTarget)
|
|
{
|
|
HRESULT hr;
|
|
|
|
hr = HlinkSimpleNavigateToString(szTarget, NULL, NULL, pUnk, NULL, 0, 0, 0);
|
|
|
|
return (hr);
|
|
}
|
|
|
|
|
|
|
|
// HlinkNavigateMoniker
|
|
|
|
|
|
|
|
STDAPI HlinkNavigateMoniker(IUnknown *pUnk, IMoniker *pmkTarget)
|
|
{
|
|
HRESULT hr;
|
|
|
|
hr = HlinkSimpleNavigateToMoniker(pmkTarget, NULL, NULL, pUnk, NULL,NULL, 0, 0);
|
|
|
|
return (hr);
|
|
}
|
|
|