public async Task <(string viewPath, BlogPostListVM viewModel)> GetBlogIndexAsync(int?page)
{
if (!page.HasValue || page <= 0)
{
page = BlogPostService.DEFAULT_PAGE_INDEX;
}
var blogSettings = await settingService.GetSettingsAsync <BlogSettings>();
var posts = await blogPostService.GetListAsync(page.Value, blogSettings.PostPerPage);
var blogPostListVM = await blogViewModelHelper.GetBlogPostListVMAsync(posts, page.Value);
return("../Blog/Index", blogPostListVM);
}
/// <summary>
/// Returns the rss xml string for the blog or a blog category.
/// The rss feed always returns first page with 10 results.
/// </summary>
/// <param name="cat"></param>
/// <returns></returns>
private async Task <string> GetFeed(Category cat = null)
{
var key = cat == null ? BlogCache.KEY_MAIN_RSSFEED : string.Format(BlogCache.KEY_CAT_RSSFEED, cat.Slug);
var time = cat == null ? BlogCache.Time_MainRSSFeed : BlogCache.Time_CatRSSFeed;
return(await distributedCache.GetAsync(key, time, async() =>
{
var sw = new StringWriter();
using (XmlWriter xmlWriter = XmlWriter.Create(sw, new XmlWriterSettings()
{
Async = true, Indent = true
}))
{
var postList = cat == null ?
await blogPostService.GetListAsync(1, 10, cacheable: false) :
await blogPostService.GetListForCategoryAsync(cat.Slug, 1);
var coreSettings = await settingService.GetSettingsAsync <CoreSettings>();
var blogSettings = await settingService.GetSettingsAsync <BlogSettings>();
var vm = await blogViewModelHelper.GetBlogPostListVMAsync(postList);
var settings = await settingService.GetSettingsAsync <CoreSettings>();
var channelTitle = cat == null ? settings.Title : $"{cat.Title} - {settings.Title}";
var channelDescription = coreSettings.Tagline;
var channelLink = $"{Request.Scheme}://{Request.Host}";
var channelLastPubDate = postList.Posts.Count <= 0 ? DateTimeOffset.UtcNow : postList.Posts[0].CreatedOn;
var writer = new RssFeedWriter(xmlWriter);
await writer.WriteTitle(channelTitle);
await writer.WriteDescription(channelDescription);
await writer.Write(new SyndicationLink(new Uri(channelLink)));
await writer.WritePubDate(channelLastPubDate);
await writer.WriteGenerator("https://www.fanray.com");
foreach (var postVM in vm.BlogPostViewModels)
{
var post = postVM;
var item = new SyndicationItem()
{
Id = postVM.Permalink, // guid https://www.w3schools.com/xml/rss_tag_guid.asp
Title = post.Title,
Description = blogSettings.FeedShowExcerpt ? post.Excerpt : post.Body,
Published = post.CreatedOn,
};
// link to the post
item.AddLink(new SyndicationLink(new Uri(postVM.CanonicalUrl)));
// category takes in both cats and tags
item.AddCategory(new SyndicationCategory(post.Category.Title));
foreach (var tag in post.Tags)
{
item.AddCategory(new SyndicationCategory(tag.Title));
}
// https://www.w3schools.com/xml/rss_tag_author.asp
// the author tag exposes email
//item.AddContributor(new SyndicationPerson(post.User.DisplayName, post.User.Email));
await writer.Write(item);
}
xmlWriter.Flush();
}
return sw.ToString();
}));
}
