BetterCMS.Module.LuceneSearch.Services.IndexerService.DefaultIndexerService.CheckAvailability C# (CSharp) Метод

        private void CheckAvailability(List<SearchResultItem> results)
        {
            if (results.Count == 0)
            {
                return;
            }

            if (!cmsConfiguration.Security.AccessControlEnabled)
            {
                // If security is not enabled, all content is available
                return;
            }

            // Create query
            var principal = securityService.GetCurrentPrincipal();
            var urls = results.Select(r => r.Link).ToArray();
            var query = repository.AsQueryable<Page>(p => urls.Contains(p.PageUrl));
            var pages = query
                .SelectMany(c => c.AccessRules, (page, accessRule) => new
                    {
                        PageUrl = page.PageUrl,
                        AccessRule = accessRule
                    })
                .ToList();

            foreach (var pageUrl in pages.Select(p => p.PageUrl).Distinct())
            {
                var page = pages.First(p => p.PageUrl == pageUrl);
                IList<IAccessRule> accessRules = pages.Where(p => p.PageUrl == pageUrl).Select(p => p.AccessRule).Cast<IAccessRule>().ToList();

                var level = accessControlService.GetAccessLevel(accessRules, principal);
                if (level < AccessLevel.Read)
                {
                    results.Where(r => r.Link == page.PageUrl).ToList().ForEach(r => r.IsDenied = true);
                }
            }

            results.ForEach(p =>
                    {
                        if (p.IsDenied)
                        {
                            p.Link = string.Empty;
                            p.FormattedUrl = LuceneGlobalization.SearchResults_Secured_LinkTitle;
                            p.Title = LuceneGlobalization.SearchResults_Secured_Title;
                            p.Snippet = LuceneGlobalization.SearchResults_Secured_Snippet;
                        }
                    });
        }