// NOT thread-safe over a request because it modifies the
// global UmbracoContext.Current.InPreviewMode status. So it
// should never execute in // over the same UmbracoContext with
// different preview modes.
private string RenderRteMacros(string source, bool preview)
{
IUmbracoContext umbracoContext = _umbracoContextAccessor.GetRequiredUmbracoContext();
using (umbracoContext.ForcedPreview(preview)) // force for macro rendering
{
var sb = new StringBuilder();
MacroTagParser.ParseMacros(
source,
// callback for when text block is found
textBlock => sb.Append(textBlock),
// callback for when macro syntax is found
(macroAlias, macroAttributes) => sb.Append(_macroRenderer.RenderAsync(
macroAlias,
umbracoContext.PublishedRequest?.PublishedContent,
// needs to be explicitly casted to Dictionary<string, object>
macroAttributes.ConvertTo(x => (string)x, x => x) !).GetAwaiter().GetResult().Text));
return(sb.ToString());
}
}
private async Task <IActionResult> GetMacroResultAsHtml(string?macroAlias, int pageId,
IDictionary <string, object>?macroParams)
{
IMacro?m = macroAlias is null ? null : _macroService.GetByAlias(macroAlias);
if (m == null)
{
return(NotFound());
}
IUmbracoContext umbracoContext = _umbracoContextAccessor.GetRequiredUmbracoContext();
IPublishedContent?publishedContent = umbracoContext.Content?.GetById(true, pageId);
//if it isn't supposed to be rendered in the editor then return an empty string
//currently we cannot render a macro if the page doesn't yet exist
if (pageId == -1 || publishedContent == null || m.DontRender)
{
//need to create a specific content result formatted as HTML since this controller has been configured
//with only json formatters.
return(Content(string.Empty, "text/html", Encoding.UTF8));
}
// When rendering the macro in the backoffice the default setting would be to use the Culture of the logged in user.
// Since a Macro might contain thing thats related to the culture of the "IPublishedContent" (ie Dictionary keys) we want
// to set the current culture to the culture related to the content item. This is hacky but it works.
// fixme
// in a 1:1 situation we do not handle the language being edited
// so the macro renders in the wrong language
var culture = DomainUtilities.GetCultureFromDomains(publishedContent.Id, publishedContent.Path, null,
umbracoContext, _siteDomainHelper);
if (culture != null)
{
Thread.CurrentThread.CurrentCulture =
Thread.CurrentThread.CurrentUICulture = CultureInfo.GetCultureInfo(culture);
}
// must have an active variation context!
_variationContextAccessor.VariationContext = new VariationContext(culture);
using (umbracoContext.ForcedPreview(true))
{
//need to create a specific content result formatted as HTML since this controller has been configured
//with only json formatters.
return(Content(
(await _componentRenderer.RenderMacroForContent(publishedContent, m.Alias, macroParams)).ToString() ??
string.Empty, "text/html",
Encoding.UTF8));
}
}
