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441 lines
10 KiB
441 lines
10 KiB
/******************************************************************************
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Copyright (c) 1999-2001 Microsoft Corporation
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Module Name:
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HtmlUtil2.cpp
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Abstract:
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This file contains the implementation of various functions and classes
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designed to help the handling of HTML elements.
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Revision History:
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Davide Massarenti (Dmassare) 18/03/2001
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created
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******************************************************************************/
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#include "stdafx.h"
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#include <MPC_html2.h>
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////////////////////////////////////////////////////////////////////////////////
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HRESULT MPC::HTML::OpenStream( /*[in ]*/ LPCWSTR szBaseURL ,
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/*[in ]*/ LPCWSTR szRelativeURL ,
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/*[out]*/ CComPtr<IStream>& stream )
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{
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__MPC_FUNC_ENTRY( COMMONID, "MPC::HTML::OpenStream" );
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HRESULT hr;
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WCHAR rgBuf[MAX_PATH];
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DWORD dwSize = MAXSTRLEN(rgBuf);
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__MPC_PARAMCHECK_BEGIN(hr)
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__MPC_PARAMCHECK_STRING_NOT_EMPTY(szBaseURL);
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__MPC_PARAMCHECK_STRING_NOT_EMPTY(szRelativeURL);
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__MPC_PARAMCHECK_END();
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__MPC_EXIT_IF_CALL_RETURNS_FALSE(hr, ::InternetCombineUrlW( szBaseURL, szRelativeURL, rgBuf, &dwSize, ICU_NO_ENCODE ));
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__MPC_EXIT_IF_METHOD_FAILS(hr, ::URLOpenBlockingStreamW( NULL, rgBuf, &stream, 0, NULL ));
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hr = S_OK;
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__MPC_FUNC_CLEANUP;
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__MPC_FUNC_EXIT(hr);
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}
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HRESULT MPC::HTML::DownloadBitmap( /*[in ]*/ LPCWSTR szBaseURL ,
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/*[in ]*/ LPCWSTR szRelativeURL ,
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/*[in ]*/ COLORREF crMask ,
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/*[out]*/ HBITMAP& hbm )
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{
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__MPC_FUNC_ENTRY( COMMONID, "MPC::HTML::DownloadBitmap" );
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HRESULT hr;
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MPC::wstring strTmp;
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CComPtr<IStream> streamIn;
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CComPtr<MPC::FileStream> streamOut;
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if(hbm)
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{
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::DeleteObject( hbm ); hbm = NULL;
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}
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//
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// Open stream for image.
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//
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__MPC_EXIT_IF_METHOD_FAILS(hr, MPC::HTML::OpenStream( szBaseURL, szRelativeURL, streamIn ));
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//
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// Create a stream for temporary file.
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//
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__MPC_EXIT_IF_METHOD_FAILS(hr, MPC::CreateInstance( &streamOut ));
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__MPC_EXIT_IF_METHOD_FAILS(hr, MPC::GetTemporaryFileName( strTmp ));
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__MPC_EXIT_IF_METHOD_FAILS(hr, streamOut->InitForWrite ( strTmp.c_str() ));
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//
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// Dump image to file.
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//
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__MPC_EXIT_IF_METHOD_FAILS(hr, MPC::BaseStream::TransferData( streamIn, streamOut ));
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streamOut.Release();
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//
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// Load bitmap from file and merge it with existing list.
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//
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__MPC_EXIT_IF_ALLOC_FAILS(hr, hbm, (HBITMAP)::LoadImageW( NULL, strTmp.c_str(), IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE | LR_CREATEDIBSECTION ));
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hr = S_OK;
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__MPC_FUNC_CLEANUP;
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(void)MPC::RemoveTemporaryFile( strTmp );
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__MPC_FUNC_EXIT(hr);
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}
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP CPCHTextHelpers::QuoteEscape( /*[in ]*/ BSTR bstrText ,
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/*[in,optional]*/ VARIANT vQuote ,
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/*[out, retval]*/ BSTR *pVal )
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{
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__HCP_FUNC_ENTRY( "CPCHTextHelpers::QuoteEscape" );
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HRESULT hr;
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__MPC_PARAMCHECK_BEGIN(hr)
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__MPC_PARAMCHECK_POINTER_AND_SET(pVal,NULL);
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__MPC_PARAMCHECK_END();
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if(STRINGISPRESENT(bstrText))
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{
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MPC::wstring str;
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WCHAR chQuote = '"';
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CComVariant v( vQuote );
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if(v.vt != VT_EMPTY && SUCCEEDED(v.ChangeType( VT_BSTR )) && v.bstrVal)
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{
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chQuote = v.bstrVal[0];
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}
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MPC::HTML::QuoteEscape( str, bstrText, chQuote );
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__MPC_EXIT_IF_METHOD_FAILS(hr, MPC::GetBSTR( str.c_str(), pVal ));
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}
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hr = S_OK;
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__HCP_FUNC_CLEANUP;
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__HCP_FUNC_EXIT(hr);
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}
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STDMETHODIMP CPCHTextHelpers::URLUnescape( /*[in ]*/ BSTR bstrText ,
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/*[in,optional]*/ VARIANT vAsQueryString ,
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/*[out, retval]*/ BSTR *pVal )
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{
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__HCP_FUNC_ENTRY( "CPCHTextHelpers::URLUnescape" );
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HRESULT hr;
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__MPC_PARAMCHECK_BEGIN(hr)
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__MPC_PARAMCHECK_POINTER_AND_SET(pVal,NULL);
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__MPC_PARAMCHECK_END();
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if(STRINGISPRESENT(bstrText))
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{
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MPC::wstring str;
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bool fAsQueryString = false;
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CComVariant v( vAsQueryString );
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if(v.vt != VT_EMPTY && SUCCEEDED(v.ChangeType( VT_BOOL )))
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{
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fAsQueryString = (v.boolVal == VARIANT_TRUE);
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}
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MPC::HTML::UrlUnescape( str, bstrText, fAsQueryString );
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__MPC_EXIT_IF_METHOD_FAILS(hr, MPC::GetBSTR( str.c_str(), pVal ));
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}
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hr = S_OK;
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__HCP_FUNC_CLEANUP;
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__HCP_FUNC_EXIT(hr);
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}
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STDMETHODIMP CPCHTextHelpers::URLEscape( /*[in ]*/ BSTR bstrText ,
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/*[in,optional]*/ VARIANT vAsQueryString ,
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/*[out, retval]*/ BSTR *pVal )
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{
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__HCP_FUNC_ENTRY( "CPCHTextHelpers::URLEscape" );
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HRESULT hr;
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__MPC_PARAMCHECK_BEGIN(hr)
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__MPC_PARAMCHECK_POINTER_AND_SET(pVal,NULL);
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__MPC_PARAMCHECK_END();
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if(STRINGISPRESENT(bstrText))
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{
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MPC::wstring str;
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bool fAsQueryString = false;
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CComVariant v( vAsQueryString );
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if(v.vt != VT_EMPTY && SUCCEEDED(v.ChangeType( VT_BOOL )))
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{
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fAsQueryString = (v.boolVal == VARIANT_TRUE);
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}
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MPC::HTML::UrlEscape( str, bstrText, fAsQueryString );
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__MPC_EXIT_IF_METHOD_FAILS(hr, MPC::GetBSTR( str.c_str(), pVal ));
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}
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hr = S_OK;
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__HCP_FUNC_CLEANUP;
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__HCP_FUNC_EXIT(hr);
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}
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STDMETHODIMP CPCHTextHelpers::HTMLEscape( /*[in ]*/ BSTR bstrText ,
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/*[out, retval]*/ BSTR *pVal )
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{
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__HCP_FUNC_ENTRY( "CPCHTextHelpers::HTMLEscape" );
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HRESULT hr;
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__MPC_PARAMCHECK_BEGIN(hr)
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__MPC_PARAMCHECK_POINTER_AND_SET(pVal,NULL);
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__MPC_PARAMCHECK_END();
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if(STRINGISPRESENT(bstrText))
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{
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MPC::wstring str;
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MPC::HTML::HTMLEscape( str, bstrText );
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__MPC_EXIT_IF_METHOD_FAILS(hr, MPC::GetBSTR( str.c_str(), pVal ));
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}
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hr = S_OK;
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__HCP_FUNC_CLEANUP;
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__HCP_FUNC_EXIT(hr);
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}
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STDMETHODIMP CPCHTextHelpers::ParseURL( /*[in ]*/ BSTR bstrURL ,
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/*[out, retval]*/ IPCHParsedURL* *pVal )
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{
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__HCP_FUNC_ENTRY( "CPCHTextHelpers::ParseURL" );
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HRESULT hr;
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CComPtr<CPCHParsedURL> pu;
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__MPC_PARAMCHECK_BEGIN(hr)
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__MPC_PARAMCHECK_STRING_NOT_EMPTY(bstrURL);
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__MPC_PARAMCHECK_POINTER_AND_SET(pVal,NULL);
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__MPC_PARAMCHECK_END();
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__MPC_EXIT_IF_METHOD_FAILS(hr, MPC::CreateInstance( &pu ));
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__MPC_EXIT_IF_METHOD_FAILS(hr, pu->Initialize( bstrURL ));
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*pVal = pu.Detach();
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hr = S_OK;
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__HCP_FUNC_CLEANUP;
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__HCP_FUNC_EXIT(hr);
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}
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STDMETHODIMP CPCHTextHelpers::GetLCIDDisplayString( /*[in]*/ long lLCID ,
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/*[out, retval]*/ BSTR *pVal )
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{
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__HCP_FUNC_ENTRY( "CPCHTextHelpers::GetLCIDDisplayString" );
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HRESULT hr;
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WCHAR rgTmp[256];
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__MPC_PARAMCHECK_BEGIN(hr)
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__MPC_PARAMCHECK_POINTER_AND_SET(pVal,NULL);
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__MPC_PARAMCHECK_END();
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if(::GetLocaleInfoW( lLCID, LOCALE_SLANGUAGE, rgTmp, MAXSTRLEN(rgTmp) ) == 0) rgTmp[0] = 0;
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__MPC_EXIT_IF_METHOD_FAILS(hr, MPC::GetBSTR( rgTmp, pVal ));
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hr = S_OK;
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__HCP_FUNC_CLEANUP;
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__HCP_FUNC_EXIT(hr);
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}
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////////////////////////////////////////
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HRESULT CPCHParsedURL::Initialize( /*[in]*/ LPCWSTR szURL )
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{
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MPC::HTML::ParseHREF( szURL, m_strBaseURL, m_mapQuery );
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return S_OK;
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}
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STDMETHODIMP CPCHParsedURL::get_BasePart( /*[out, retval]*/ BSTR *pVal )
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{
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return MPC::GetBSTR( m_strBaseURL.c_str(), pVal );
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}
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STDMETHODIMP CPCHParsedURL::put_BasePart( /*[in]*/ BSTR newVal )
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{
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m_strBaseURL = SAFEBSTR(newVal);
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return S_OK;
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}
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STDMETHODIMP CPCHParsedURL::get_QueryParameters( /*[out, retval]*/ VARIANT *pVal )
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{
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__HCP_FUNC_ENTRY( "CPCHParsedURL::get_QueryParameters" );
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HRESULT hr;
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MPC::WStringList lst;
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MPC::WStringLookupIter it;
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__MPC_PARAMCHECK_BEGIN(hr)
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__MPC_PARAMCHECK_NOTNULL(pVal);
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__MPC_PARAMCHECK_END();
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for(it = m_mapQuery.begin(); it != m_mapQuery.end(); it++)
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{
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lst.push_back( it->first.c_str() );
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}
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::VariantClear( pVal );
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__MPC_EXIT_IF_METHOD_FAILS(hr, MPC::ConvertListToSafeArray( lst, *pVal, VT_VARIANT ));
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hr = S_OK;
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__HCP_FUNC_CLEANUP;
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__HCP_FUNC_EXIT(hr);
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}
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////////////////////
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STDMETHODIMP CPCHParsedURL::GetQueryParameter( /*[in ]*/ BSTR bstrName ,
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/*[out, retval]*/ VARIANT* pvValue )
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{
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__HCP_FUNC_ENTRY( "CPCHParsedURL::GetQueryParameter" );
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HRESULT hr;
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MPC::WStringLookupIter it;
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__MPC_PARAMCHECK_BEGIN(hr)
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__MPC_PARAMCHECK_STRING_NOT_EMPTY(bstrName);
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__MPC_PARAMCHECK_NOTNULL(pvValue);
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__MPC_PARAMCHECK_END();
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::VariantClear( pvValue );
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it = m_mapQuery.find( bstrName );
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if(it != m_mapQuery.end())
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{
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pvValue->vt = VT_BSTR;
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pvValue->bstrVal = ::SysAllocString( it->second.c_str() );
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}
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hr = S_OK;
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__HCP_FUNC_CLEANUP;
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__HCP_FUNC_EXIT(hr);
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}
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STDMETHODIMP CPCHParsedURL::SetQueryParameter( /*[in]*/ BSTR bstrName ,
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/*[in]*/ BSTR bstrValue )
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{
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__HCP_FUNC_ENTRY( "CPCHParsedURL::SetQueryParameter" );
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HRESULT hr;
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__MPC_PARAMCHECK_BEGIN(hr)
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__MPC_PARAMCHECK_STRING_NOT_EMPTY(bstrName);
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__MPC_PARAMCHECK_END();
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m_mapQuery[bstrName] = SAFEBSTR(bstrValue);
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hr = S_OK;
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__HCP_FUNC_CLEANUP;
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__HCP_FUNC_EXIT(hr);
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}
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STDMETHODIMP CPCHParsedURL::DeleteQueryParameter( /*[in]*/ BSTR bstrName )
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{
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__HCP_FUNC_ENTRY( "CPCHParsedURL::DeleteQueryParameter" );
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HRESULT hr;
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MPC::WStringLookupIter it;
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__MPC_PARAMCHECK_BEGIN(hr)
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__MPC_PARAMCHECK_STRING_NOT_EMPTY(bstrName);
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__MPC_PARAMCHECK_END();
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it = m_mapQuery.find( bstrName );
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if(it != m_mapQuery.end())
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{
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m_mapQuery.erase( it );
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}
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hr = S_OK;
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__HCP_FUNC_CLEANUP;
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__HCP_FUNC_EXIT(hr);
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}
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STDMETHODIMP CPCHParsedURL::BuildFullURL( /*[out, retval]*/ BSTR *pVal )
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{
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MPC::wstring strURL;
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MPC::HTML::BuildHREF( strURL, m_strBaseURL.c_str(), m_mapQuery );
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return MPC::GetBSTR( strURL.c_str(), pVal );
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}
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