CString ExtractHref(CString url) 
{
	if (url.IsEmpty())
		return "";
	int startIdx = url.Find(TEXT("http"));
	if (startIdx >= 0)
	{
		int finishIdx = url.Find(TEXT("\""), startIdx);
		if (startIdx >= 0 && finishIdx > 0)
			return url.Mid(startIdx, finishIdx - startIdx + 1);
	}
	return "";
}

CString ExtractFileName(CString url)
{
	if (url.IsEmpty())
		return "";
	CString href = ExtractHref(url);
	if (href.IsEmpty())
		return "";
	int fileNameStartIdx = href.ReverseFind('/') + 1;
	int size = href.GetLength() - fileNameStartIdx;
	if (size <= 0)
		return "";

	return href.Mid(fileNameStartIdx, size - 1);
}