AjaxControlToolkit.HtmlEditorExtender.Decode C# (CSharp) Метод

        public string Decode(string value)
        {
            var tags = "font|div|span|br|strong|em|strike|sub|sup|center|blockquote|hr|ol|ul|li|br|s|p|b|i|u|img";
            var attributes = "style|size|color|face|align|dir|src|width|id|class";
            var attributeCharacters = "\\'\\,\\w\\-#\\s\\:\\;\\?\\&\\.\\-\\=";
            var result = Regex.Replace(value, "\\&quot\\;", "\"", RegexOptions.IgnoreCase);
            result = Regex.Replace(result, "'", "'", RegexOptions.IgnoreCase);
            result = Regex.Replace(result, "(?:\\&lt\\;|\\<)(\\/?)((?:" + tags + ")(?:\\s(?:" + attributes + ")=\"[" + attributeCharacters + "]*\")*)(?:\\&gt\\;|\\>)", "<$1$2>", RegexOptions.IgnoreCase | RegexOptions.ECMAScript);

            var hrefCharacters = "^\\\"\\>\\<\\\\";
            result = Regex.Replace(result, "(?:\\&lt\\;|\\<)(\\/?)(a(?:(?:\\shref\\=\\\"[" + hrefCharacters + "]*\\\")|(?:\\sstyle\\=\\\"[" + attributeCharacters + "]*\\\"))*)(?:\\&gt\\;|\\>)", "<$1$2>", RegexOptions.IgnoreCase | RegexOptions.ECMAScript);

            result = Regex.Replace(result, "&?lt;", "<");
            result = Regex.Replace(result, "&?gt;", ">");

            result = Regex.Replace(result, "&amp;", "&", RegexOptions.IgnoreCase);
            result = Regex.Replace(result, "&nbsp;", "\xA0", RegexOptions.IgnoreCase);
            result = Regex.Replace(result, "[^<]<[^>]*expression[^>]*>", "", RegexOptions.IgnoreCase | RegexOptions.ECMAScript);
            result = Regex.Replace(result, "[^<]<[^>]*data\\:[^>]*>", "", RegexOptions.IgnoreCase | RegexOptions.ECMAScript);
            result = Regex.Replace(result, "[^<]<[^>]*script(?!\\w)[^>]*>", "", RegexOptions.IgnoreCase | RegexOptions.ECMAScript);
            result = Regex.Replace(result, "[^<]<[^>]*filter[^>]*>", "", RegexOptions.IgnoreCase | RegexOptions.ECMAScript);
            result = Regex.Replace(result, "[^<]<[^>]*behavior[^>]*>", "", RegexOptions.IgnoreCase | RegexOptions.ECMAScript);
            result = Regex.Replace(result, "[^<]<[^>]*javascript\\:[^>]*>", "", RegexOptions.IgnoreCase | RegexOptions.ECMAScript);
            result = Regex.Replace(result, "[^<]<[^>]*position\\:[^>]*>", "", RegexOptions.IgnoreCase | RegexOptions.ECMAScript);

            // Check Whether EnableSanitization is disabled or not.
            if(EnableSanitization && Sanitizer != null) {
                var elementWhiteList = MakeCombinedElementList();

                if(!elementWhiteList.ContainsKey("span"))
                    elementWhiteList.Add("span", new string[0]);

                if(!elementWhiteList.ContainsKey("br"))
                    elementWhiteList.Add("br", new string[0]);

                result = Sanitizer.GetSafeHtmlFragment(result, elementWhiteList);
            }

            // HtmlAgilityPack vanishes self-closing <hr /> tag, so replace it after sanitization
            result = result.Replace("<hr>", "<hr />");

            return result;
        }

 public void DoNotClearUrlText()
 {
     var extender = new HtmlEditorExtender();
     extender.EnableSanitization = false;
     var text = "Please click <a href=\"www.curl.com\">here</a>.";
     var actual = extender.Decode(text);
     var expected = text;
     Assert.AreEqual(expected, actual);
 }