/// <summary>
/// Tries to find and assign an Umbraco document to a <c>PublishedRequest</c>.
/// </summary>
/// <param name="frequest">The <c>PublishedRequest</c>.</param>
/// <returns>A value indicating whether an Umbraco document was found and assigned.</returns>
/// <remarks>Optionally, can also assign the template or anything else on the document request, although that is not required.</remarks>
public async Task <bool> TryFindContent(IPublishedRequestBuilder frequest)
{
if (!_umbracoContextAccessor.TryGetUmbracoContext(out var umbracoContext))
{
return(false);
}
var route = frequest.Domain != null
? frequest.Domain.ContentId + DomainUtilities.PathRelativeToDomain(frequest.Domain.Uri, frequest.AbsolutePathDecoded)
: frequest.AbsolutePathDecoded;
IRedirectUrl?redirectUrl = await _redirectUrlService.GetMostRecentRedirectUrlAsync(route, frequest.Culture);
if (redirectUrl == null)
{
if (_logger.IsEnabled(LogLevel.Debug))
{
_logger.LogDebug("No match for route: {Route}", route);
}
return(false);
}
IPublishedContent?content = umbracoContext.Content?.GetById(redirectUrl.ContentId);
var url = content == null ? "#" : content.Url(_publishedUrlProvider, redirectUrl.Culture);
if (url.StartsWith("#"))
{
if (_logger.IsEnabled(LogLevel.Debug))
{
_logger.LogDebug("Route {Route} matches content {ContentId} which has no URL.", route, redirectUrl.ContentId);
}
return(false);
}
// Appending any querystring from the incoming request to the redirect URL
url = string.IsNullOrEmpty(frequest.Uri.Query) ? url : url + frequest.Uri.Query;
if (_logger.IsEnabled(LogLevel.Debug))
{
_logger.LogDebug("Route {Route} matches content {ContentId} with URL '{Url}', redirecting.", route, content?.Id, url);
}
frequest
.SetRedirectPermanent(url)
// From: http://stackoverflow.com/a/22468386/5018
// See http://issues.umbraco.org/issue/U4-8361#comment=67-30532
// Setting automatic 301 redirects to not be cached because browsers cache these very aggressively which then leads
// to problems if you rename a page back to it's original name or create a new page with the original name
.SetNoCacheHeader(true)
.SetCacheExtensions(new List <string> {
"no-store, must-revalidate"
})
.SetHeaders(new Dictionary <string, string> {
{ "Pragma", "no-cache" }, { "Expires", "0" }
});
return(true);
}
