MyDownloader.Spider.Parsers.Html.HtmlParser.ConvertToAbsoluteUrl C# (CSharp) Method

        private static Uri ConvertToAbsoluteUrl(string url, string baseUrl)
        {
            // we try to prevent the exception caused in the case the url is relative
            // (no scheme info) just for speed
            if (url.IndexOf(Uri.SchemeDelimiter) < 0 && baseUrl != null)
            {
                try
                {
                    Uri baseUri = new Uri(baseUrl);
                    return new Uri(baseUri, url);
                }
                catch
                {
                    return null;
                }
            }

            try
            {
                Uri uri = new Uri(url);
                return uri;
            }
            catch (Exception)
            {
                if (baseUrl != null)
                {
                    try
                    {
                        Uri baseUri = new Uri(baseUrl);
                        return new Uri(baseUri, url);
                    }
                    catch (Exception)
                    {
                        return null;
                    }
                }
                else
                {
                    return null;
                }
            }
        }