private void WriteCharacterWithCheck(char ch)
{
if (Settings.ExtractLinks && Char.IsLetter(ch) && (
_input.Match("http://") || _input.Match("https://") ||
_input.Match("ftp://") || _input.Match("mailto:") ||
_input.Match("www.")))
{
StringBuilder lb = new StringBuilder();
string url;
// едим все до пробела, или до конца строки
do
{
if (Char.IsWhiteSpace(_input.Current))
{
_input.Position--;
break;
}
lb.Append(_input.Current);
}while (_input.Read());
// отдаем обратно не буквы-цифры и слеши
while (lb.Length > 0 && Char.IsPunctuation(lb[lb.Length - 1]))
{
lb.Length--;
_input.Position--;
}
url = (lb[0] == 'w') ? "http://" + lb.ToString() : lb.ToString();
Uri uri;
if (Uri.TryCreate(url, UriKind.Absolute, out uri))
{
if (String.Equals(uri.Scheme, "mailto", StringComparison.OrdinalIgnoreCase))
{
lb.Remove(0, 7);
}
HtmlElementBuilder tag = new HtmlElementBuilder("a");
tag.Attributes["href"] = uri.OriginalString;
tag.InnerHtml = SecurityElement.Escape(lb.ToString());
Write(FormatElement(tag, HtmlElementRenderMode.Normal));
}
else
{
_output.Append(lb.ToString());
}
}
else if (Char.IsWhiteSpace(ch))
{
CloseNoBreak();
Write(ch);
}
else
{
Write(ch);
}
}
public HtmlFormatterFilter(HtmlFilterSettings settings,
HtmlElementRule container, HtmlElementBuilder element,
StringWriter output)
: base(TextReader.Null, output, settings)
{
_contents = output.GetStringBuilder();
_container = container;
_element = element;
}
public HtmlFormatterFilter(HtmlFilterSettings settings,
HtmlElementRule container, HtmlElementBuilder element,
StringWriter output)
: base(TextReader.Null, output, settings)
{
_contents = output.GetStringBuilder();
_container = container;
_element = element;
}
protected virtual void Dispose(bool disposing)
{
if (disposing && !_disposed)
{
_disposed = true;
HtmlElementBuilder builder = new HtmlElementBuilder("form");
_response.Write(builder.ToString(HtmlElementRenderMode.EndTag));
}
}
protected virtual string FormatElement(HtmlElementBuilder element,
HtmlElementRenderMode mode)
{
Precondition.Require(element, () => Error.ArgumentNull("element"));
if (Formatter == null)
{
return(element.ToString(mode));
}
return(Formatter(element, mode));
}
protected string FormatElement(HtmlElementRule parent,
HtmlElementBuilder element, HtmlElementRenderMode renderMode)
{
using (StringWriter writer = new StringWriter())
{
HtmlFormatterFilter filter = new HtmlFormatterFilter(
_settings, parent, element, writer);
filter.RenderMode = renderMode;
filter.Parameters = Parameters;
filter.Execute();
return(writer.ToString());
}
}
public static string Serialize(this HtmlHelper helper,
string name, object data, SerializationMode mode)
{
Precondition.Require(helper, () => Error.ArgumentNull("helper"));
Precondition.Defined(name, () => Error.ArgumentNull("name"));
ModelStateSerializer serializer = new ModelStateSerializer();
string elementName = helper.Context.ViewData.Template.GetHtmlElementName(name);
string value = serializer.Serialize(data ?? helper.Context.ViewData.Model, mode);
HtmlElementBuilder builder = new HtmlElementBuilder("input");
builder.Attributes["type"] = "hidden";
builder.Attributes["name"] = elementName;
builder.Attributes["value"] = value;
return builder.ToString();
}
public string Tag(string tagName, object attributes, params string[] content)
{
HtmlElementBuilder builder = new HtmlElementBuilder(tagName, attributes,
(content == null) ? null : String.Join("", content));
return builder.ToString();
}
public string Tag(string tagName, object attributes)
{
HtmlElementBuilder builder = new HtmlElementBuilder(tagName, attributes, null);
return builder.ToString();
}
/// <summary>
/// Returns the string for a hidden input containing a
/// token used to prevent CSRF attacks.
/// </summary>
/// <param name="value">An extended value to store in the token.</param>
public string Token(string value)
{
RequestValidationToken token = RequestValidationToken.Create(Context.Context);
HtmlElementBuilder builder = new HtmlElementBuilder("input");
builder.Attributes.Add("type", "hidden");
builder.Attributes.Add("name", ValidateRequestTokenAttribute.ValidationFieldName);
builder.Attributes.Add("value", token.Serialize());
return builder.ToString();
}
protected string FormatElement(HtmlElementRule parent,
HtmlElementBuilder element, HtmlElementRenderMode renderMode)
{
using (StringWriter writer = new StringWriter())
{
HtmlFormatterFilter filter = new HtmlFormatterFilter(
_settings, parent, element, writer);
filter.RenderMode = renderMode;
filter.Parameters = Parameters;
filter.Execute();
return writer.ToString();
}
}
/// <summary>
/// Renders the ScriptManager to the page.
/// </summary>
public void Render()
{
TextWriter writer = _context.Context.Response.Output;
HtmlElementBuilder builder = new HtmlElementBuilder("script",
new { Type = "text/javascript" }, String.Empty);
foreach (string path in _includes.Values)
{
builder.Attributes.Merge("src", path, true);
writer.WriteLine(builder.ToString());
}
if (_blocks.Values.Any(b => !b.IsEmpty))
{
builder.Attributes.Remove("src");
writer.WriteLine(builder.ToString(HtmlElementRenderMode.StartTag));
writer.WriteLine("//<![CDATA[");
foreach (ScriptBlock script in _blocks.Values)
script.Render(writer);
writer.WriteLine("//]]>");
writer.WriteLine(builder.ToString(HtmlElementRenderMode.EndTag));
}
_blocks.Clear();
_includes.Clear();
}
private void WriteCharacterWithCheck(char ch)
{
if (Settings.ExtractLinks && Char.IsLetter(ch) && (
_input.Match("http://") || _input.Match("https://") ||
_input.Match("ftp://") || _input.Match("mailto:") ||
_input.Match("www.")))
{
StringBuilder lb = new StringBuilder();
string url;
// едим все до пробела, или до конца строки
do
{
if (Char.IsWhiteSpace(_input.Current))
{
_input.Position--;
break;
}
lb.Append(_input.Current);
}
while (_input.Read());
// отдаем обратно не буквы-цифры и слеши
while (lb.Length > 0 && Char.IsPunctuation(lb[lb.Length - 1]))
{
lb.Length--;
_input.Position--;
}
url = (lb[0] == 'w') ? "http://" + lb.ToString() : lb.ToString();
Uri uri;
if (Uri.TryCreate(url, UriKind.Absolute, out uri))
{
if (String.Equals(uri.Scheme, "mailto", StringComparison.OrdinalIgnoreCase))
lb.Remove(0, 7);
HtmlElementBuilder tag = new HtmlElementBuilder("a");
tag.Attributes["href"] = uri.OriginalString;
tag.InnerHtml = SecurityElement.Escape(lb.ToString());
Write(FormatElement(tag, HtmlElementRenderMode.Normal));
}
else
_output.Append(lb.ToString());
}
else if (Char.IsWhiteSpace(ch))
{
CloseNoBreak();
Write(ch);
}
else
Write(ch);
}
protected virtual string FormatElement(HtmlElementBuilder element,
HtmlElementRenderMode mode)
{
Precondition.Require(element, () => Error.ArgumentNull("element"));
if (Formatter == null)
return element.ToString(mode);
return Formatter(element, mode);
}
