private string Convert(object source, bool preview)
{
if (source == null)
{
return(null);
}
var sourceString = source.ToString();
// ensures string is parsed for {localLink} and URLs and media are resolved correctly
sourceString = _linkParser.EnsureInternalLinks(sourceString, preview);
sourceString = _urlParser.EnsureUrls(sourceString);
sourceString = _imageSourceParser.EnsureImageSources(sourceString);
// ensure string is parsed for macros and macros are executed correctly
sourceString = RenderRteMacros(sourceString, preview);
// find and remove the rel attributes used in the Umbraco UI from img tags
var doc = new HtmlDocument();
doc.LoadHtml(sourceString);
if (doc.ParseErrors.Any() == false && doc.DocumentNode != null)
{
// Find all images with rel attribute
var imgNodes = doc.DocumentNode.SelectNodes("//img[@rel]");
var modified = false;
if (imgNodes != null)
{
foreach (var img in imgNodes)
{
var nodeId = img.GetAttributeValue("rel", string.Empty);
if (int.TryParse(nodeId, NumberStyles.Integer, CultureInfo.InvariantCulture, out _))
{
img.Attributes.Remove("rel");
modified = true;
}
}
}
// Find all a and img tags with a data-udi attribute
var dataUdiNodes = doc.DocumentNode.SelectNodes("(//a|//img)[@data-udi]");
if (dataUdiNodes != null)
{
foreach (var node in dataUdiNodes)
{
node.Attributes.Remove("data-udi");
modified = true;
}
}
if (modified)
{
return(doc.DocumentNode.OuterHtml);
}
}
return(sourceString);
}
public override object?ConvertSourceToIntermediate(IPublishedElement owner, IPublishedPropertyType propertyType, object?source, bool preview)
{
if (source == null)
{
return(null);
}
var sourceString = source.ToString();
// ensures string is parsed for {localLink} and URLs are resolved correctly
sourceString = _linkParser.EnsureInternalLinks(sourceString !, preview);
sourceString = _urlParser.EnsureUrls(sourceString);
return(sourceString);
}