xmldomparser.cpp File Reference

#include "precomp.h"
#include "xmldomparser.hpp"
#include "utils.h"
#include "stringutils.h"

Include dependency graph for xmldomparser.cpp:

Go to the source code of this file.

Functions
static BSTR	ConvertUTF8StringToBSTR (const char *pSrc)
VOID	UninitXMLDOMParser (VOID)
HRESULT	CreateAndInitXMLDOMDocument (IXMLDOMDocument **ppDoc)
BOOL	LoadXMLDocumentFromResource (IXMLDOMDocument *pDoc, LPCWSTR lpszXMLResName)
BOOL	LoadXMLDocumentFromFile (IXMLDOMDocument *pDoc, LPCWSTR lpszFilename, BOOL bIgnoreErrorsIfNonExistingFile)

Variables
HRESULT	InitXMLDOMParser (VOID)

Function Documentation

ConvertUTF8StringToBSTR()

static BSTR ConvertUTF8StringToBSTR ( const char *  pSrc )

static

Definition at line 16 of file xmldomparser.cpp.

{
    DWORD cwch;
    BSTR wsOut(NULL);
 
    if (!pSrc) return NULL;
 
    /* Compute the needed size with the NULL terminator */
    cwch = MultiByteToWideChar(CP_UTF8, 0, pSrc, -1, NULL, 0);
    if (cwch == 0) return NULL;
 
    /* Allocate the BSTR (without the NULL terminator) */
    wsOut = SysAllocStringLen(NULL, cwch - 1);
    if (!wsOut)
    {
        _com_issue_error(HRESULT_FROM_WIN32(ERROR_OUTOFMEMORY));
        return NULL;
    }
 
    /* Convert the string */
    if (MultiByteToWideChar(CP_UTF8, 0, pSrc, -1, wsOut, cwch) == 0)
    {
        /* We failed, clean everything up */
        cwch = GetLastError();
 
        SysFreeString(wsOut);
        wsOut = NULL;
 
        _com_issue_error(!IS_ERROR(cwch) ? HRESULT_FROM_WIN32(cwch) : cwch);
    }
 
    return wsOut;
}

Referenced by LoadXMLDocumentFromResource().

CreateAndInitXMLDOMDocument()

HRESULT CreateAndInitXMLDOMDocument

(

IXMLDOMDocument **

ppDoc

)

Definition at line 64 of file xmldomparser.cpp.

{
    HRESULT hr = CoCreateInstance(CLSID_DOMDocument30, // __uuidof(DOMDocument30), // NOTE: Do not use DOMDocument60 if you want MSConfig working by default on XP.
                                  NULL,
                                  CLSCTX_INPROC_SERVER,
                                  IID_PPV_ARG(IXMLDOMDocument, ppDoc) /* IID_PPV_ARGS(ppDoc) */);
    if (!SUCCEEDED(hr))
        return hr;
 
    /* These methods should not fail so don't inspect result */
    (*ppDoc)->put_async(VARIANT_FALSE);
    (*ppDoc)->put_validateOnParse(VARIANT_FALSE);
    (*ppDoc)->put_resolveExternals(VARIANT_FALSE);
 
    return hr;
}

Referenced by FillListView().

LoadXMLDocumentFromFile()

BOOL LoadXMLDocumentFromFile	(	IXMLDOMDocument *	pDoc,
		LPCWSTR	lpszFilename,
		BOOL	bIgnoreErrorsIfNonExistingFile
	)

Definition at line 143 of file xmldomparser.cpp.

{
    VARIANT_BOOL Success = VARIANT_FALSE;
    _variant_t varFileName(lpszFilename);
 
    if (!pDoc)
        return FALSE;
 
    if (SUCCEEDED(pDoc->load(varFileName, &Success)) && (Success != VARIANT_TRUE))
    {
        IXMLDOMParseError* pXMLErr    = NULL;
        LONG               lErrorCode = 0L;
 
        if (SUCCEEDED(pDoc->get_parseError(&pXMLErr)) &&
            SUCCEEDED(pXMLErr->get_errorCode(&lErrorCode)))
        {
            if ( !bIgnoreErrorsIfNonExistingFile ||
                ((lErrorCode != _HRESULT_TYPEDEF_(0x800C0006) /* INET_E_OBJECT_NOT_FOUND */) &&
                 (lErrorCode != HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND))) )
            {
                _bstr_t bstrErr;
 
                if (SUCCEEDED(pXMLErr->get_reason(&bstrErr.GetBSTR())))
                {
                    LPWSTR lpszStr = FormatString(L"Failed to load DOM from '%wS': %wS", lpszFilename, (wchar_t*)bstrErr);
                    MessageBoxW(NULL, lpszStr, L"Error", MB_ICONERROR | MB_OK);
                    MemFree(lpszStr);
                }
            }
        }
 
        SAFE_RELEASE(pXMLErr);
    }
 
    return (Success == VARIANT_TRUE);
}

Referenced by FillListView().

LoadXMLDocumentFromResource()

BOOL LoadXMLDocumentFromResource	(	IXMLDOMDocument *	pDoc,
		LPCWSTR	lpszXMLResName
	)

Definition at line 82 of file xmldomparser.cpp.

{
    VARIANT_BOOL Success = VARIANT_FALSE;
    HRSRC   hRes;
    HGLOBAL handle;
    LPVOID  lpXMLRes;
    _bstr_t bstrXMLRes;
 
    if (!pDoc)
        return FALSE;
 
    // hRes = FindResourceExW(NULL, RT_HTML, lpszXMLResName, MAKELANGID(LANG_NEUTRAL, SUBLANG_NEUTRAL));
    hRes = FindResourceW(NULL, lpszXMLResName, RT_HTML);
    if (hRes == NULL)
        return FALSE;
 
    handle = LoadResource(NULL, hRes);
    if (handle == NULL)
        return FALSE;
 
    lpXMLRes = LockResource(handle);
    if (lpXMLRes == NULL)
        goto Cleanup;
 
    /* Convert the resource to UNICODE if needed */
    if (!IsTextUnicode(lpXMLRes, SizeofResource(NULL, hRes), NULL))
        bstrXMLRes.Attach(ConvertUTF8StringToBSTR((LPCSTR)lpXMLRes));
    else
        bstrXMLRes = (LPCWSTR)lpXMLRes;
 
    if (SUCCEEDED(pDoc->loadXML(bstrXMLRes, &Success)) && (Success != VARIANT_TRUE))
    {
        IXMLDOMParseError* pXMLErr = NULL;
        _bstr_t            bstrErr;
 
        if (SUCCEEDED(pDoc->get_parseError(&pXMLErr)) &&
            SUCCEEDED(pXMLErr->get_reason(&bstrErr.GetBSTR())))
        {
            LPWSTR lpszStr = NULL;
 
            if (IS_INTRESOURCE((ULONG_PTR)lpszXMLResName))
                lpszStr = FormatString(L"Failed to load DOM from resource '#%u': %wS", lpszXMLResName, (wchar_t*)bstrErr);
            else
                lpszStr = FormatString(L"Failed to load DOM from resource '%wS': %wS", lpszXMLResName, (wchar_t*)bstrErr);
 
            MessageBoxW(NULL, lpszStr, L"Error", MB_ICONERROR | MB_OK);
 
            MemFree(lpszStr);
        }
 
        SAFE_RELEASE(pXMLErr);
    }
 
Cleanup:
    FreeResource(handle);
 
    return (Success == VARIANT_TRUE);
}

Referenced by FillListView().

UninitXMLDOMParser()

VOID UninitXMLDOMParser

(

VOID

)

Definition at line 57 of file xmldomparser.cpp.

{
    CoUninitialize();
    return;
}

Referenced by FillListView().

Variable Documentation

InitXMLDOMParser

HRESULT InitXMLDOMParser(VOID)

(

VOID

)

Definition at line 51 of file xmldomparser.cpp.

{
    return CoInitialize(NULL);
}

Referenced by FillListView().