public static OpAttributes Sanitize(JToken dirtyAttrs)
{
var cleanAttrs = new OpAttributes();
if (dirtyAttrs == null || dirtyAttrs.Type != JTokenType.Object)
{
return(cleanAttrs);
}
var font = dirtyAttrs.GetStringValue("font");
if (!String.IsNullOrEmpty(font) && IsValidFontName(font))
{
cleanAttrs.Font = font;
}
var size = dirtyAttrs.GetStringValue("size");
if (!String.IsNullOrEmpty(size) && IsValidSize(size))
{
cleanAttrs.Size = size;
}
var link = dirtyAttrs.GetStringValue("link");
if (!String.IsNullOrEmpty(link))
{
cleanAttrs.Link = UrlHelpers.Sanitize(link);
}
var target = dirtyAttrs.GetStringValue("target");
if (!String.IsNullOrEmpty(target) && IsValidTarget(target))
{
cleanAttrs.Target = target;
}
cleanAttrs.Script = ScriptConverter.GetEnumValue(
dirtyAttrs.GetStringValue("script"));
cleanAttrs.List = ListConverter.GetEnumValue(
dirtyAttrs.GetStringValue("list"));
var header = dirtyAttrs.GetIntValue("header");
if (header.HasValue && header.Value > 0)
{
cleanAttrs.Header = Math.Min(header.Value, 6);
}
cleanAttrs.Align = AlignConverter.GetEnumValue(
dirtyAttrs.GetStringValue("align"));
cleanAttrs.Direction = DirectionConverter.GetEnumValue(
dirtyAttrs.GetStringValue("direction"));
var indent = dirtyAttrs.GetIntValue("indent");
if (indent.HasValue)
{
cleanAttrs.Indent = Math.Min((int)indent.Value, 30);
}
var width = dirtyAttrs.GetStringValue("width");
if (!String.IsNullOrEmpty(width) && IsValidWidth(width))
{
cleanAttrs.Width = width;
}
cleanAttrs.Bold = dirtyAttrs.GetBoolValue("bold");
cleanAttrs.Italic = dirtyAttrs.GetBoolValue("italic");
cleanAttrs.Underline = dirtyAttrs.GetBoolValue("underline");
cleanAttrs.Strike = dirtyAttrs.GetBoolValue("strike");
cleanAttrs.Code = dirtyAttrs.GetBoolValue("code");
cleanAttrs.Blockquote = dirtyAttrs.GetBoolValue("blockquote");
cleanAttrs.CodeBlock = dirtyAttrs.GetBoolValue("code-block");
cleanAttrs.RenderAsBlock = dirtyAttrs.GetBoolValue("renderAsBlock");
cleanAttrs.Background = GetColour(dirtyAttrs.GetStringValue("background"));
cleanAttrs.Color = GetColour(dirtyAttrs.GetStringValue("color"));
var mentions = dirtyAttrs.GetBoolValue("mentions");
var mentionToken = dirtyAttrs["mention"];
if (mentionToken != null)
{
var mention = mentionToken.Value <JObject>();
if (mentions.HasValue && mentions.Value && mention != null)
{
var sanitizedMention = MentionSanitizer.Sanitize(mention);
if (sanitizedMention.AnySet)
{
cleanAttrs.Mentions = true;
cleanAttrs.Mention = sanitizedMention;
}
}
}
foreach (var kv in (JObject)dirtyAttrs)
{
if (s_sanitizedAttributes.Contains(kv.Key))
{
continue;
}
if (cleanAttrs.CustomAttributes == null)
{
cleanAttrs.CustomAttributes = new Dictionary <string, JToken>();
}
cleanAttrs.CustomAttributes.Add(kv.Key, kv.Value);
}
return(cleanAttrs);
}
public IList <string> GetTags()
{
var attrs = _op.Attributes;
// embeds
if (!_op.IsText())
{
return(new string[] {
_op.IsVideo() ? "iframe" :
_op.IsImage() ? "img" : "span" // formula
});
}
// blocks
var positionTag = String.IsNullOrEmpty(_options.ParagraphTag) ?
"p" : _options.ParagraphTag;
if (attrs.Blockquote == true)
{
return(new string[] { "blockquote" });
}
if (attrs.CodeBlock == true)
{
return(new string[] { "pre" });
}
if (attrs.List.HasValue)
{
return(new string[] { _options.ListItemTag });
}
if (attrs.Header > 0)
{
return(new string[] { "h" + attrs.Header.Value });
}
if (attrs.Align.HasValue || attrs.Direction.HasValue ||
attrs.Indent.HasValue)
{
return(new string[] { positionTag });
}
// inlines
var result = new List <string>();
if (!String.IsNullOrEmpty(attrs.Link))
{
result.Add("a");
}
if (attrs.Mentions)
{
result.Add("a");
}
if (attrs.Script.HasValue)
{
result.Add(ScriptConverter.GetTag(attrs.Script.Value));
}
if (attrs.Bold == true)
{
result.Add("strong");
}
if (attrs.Italic == true)
{
result.Add("em");
}
if (attrs.Strike == true)
{
result.Add("s");
}
if (attrs.Underline == true)
{
result.Add("u");
}
if (attrs.Code == true)
{
result.Add("code");
}
return(result);
}
