新增rss功能

2025-05-15 12:53:47 +08:00
parent b689c013d7
commit 22e9aefe1a
24 changed files with 318 additions and 151 deletions
--- a/Yes.Application/Core/HostedServices/RssGenerationJob.cs
+++ b/Yes.Application/Core/HostedServices/RssGenerationJob.cs
@@ -0,0 +1,100 @@
+namespace Yes.Application.Core.HostedServices
+{
+    public class RssGenerationJob
+    {
+        private readonly BlogSettings _settings;
+        private readonly BlogDbContext _db;
+        private readonly ILogger<RssGenerationJob> _logger;
+        private readonly IWebHostEnvironment _env;
+        public RssGenerationJob(
+            IOptionsMonitor<BlogSettings> options,
+            BlogDbContext db,
+            IWebHostEnvironment env,
+            ILogger<RssGenerationJob> logger)
+        {
+            _settings = options.CurrentValue;
+            _db = db;
+            _env = env;
+            _logger = logger;
+        }
+
+        public async Task Execute()
+        {
+            try
+            {
+                var queryArticle = _db.Articles.Where(x => x.Type == ArticleTypeEnum.Article && x.Status == ArticleStatusEnum.Normal).AsQueryable();
+                var pubDate = queryArticle.Any() ? _db.Articles.Min(x => x.PublishDate) : DateTime.MinValue;
+
+                var channel = new Channel
+                {
+                    Title = _settings.Name,
+                    Link = _settings.Url,
+                    Description = _settings.Description,
+                    Language = "zh-CN",
+                    FeedUrl = $"{_settings.Url}/feed/",
+                    PubDate = pubDate
+                };
+
+                // 添加扩展元素（示例）
+                channel.Extensions.Add(new XElement("generator", _settings.Name));
+                channel.Extensions.Add(new XElement("docs", "http://www.rssboard.org/rss-specification"));
+
+                var query = from article in queryArticle
+                            join categoryTemp in _db.Categories.AsNoTracking() on article.CategoryId equals categoryTemp.Id into tempCategory
+                            from category in tempCategory.DefaultIfEmpty()
+                            join userTemp in _db.Users.AsNoTracking() on article.UserId equals userTemp.Id into tempUser
+                            from user in tempUser.DefaultIfEmpty()
+                            orderby article.Id descending
+                            select new ArticleModel
+                            {
+                                Id = article.Id,
+                                CanComment = article.CanComment,
+                                CommentCount = article.CommentCount,
+                                CategoryId = article.CategoryId,
+                                ModifyDate = article.ModifyDate.ToSafeTime(),
+                                PublishDate = article.PublishDate.ToSafeTime(),
+                                CreateDate = article.CreateDate.ToSafeTime(),
+                                Content = article.Content,
+                                CoverUrl = article.CoverUrl,
+                                Slug = article.Slug,
+                                ReadCount = article.ReadCount,
+                                Title = article.Title,
+                                Summary = article.Summary,
+                                UserId = article.UserId,
+                                Category = new CategoryModel
+                                {
+                                    CoverUrl = category.CoverUrl,
+                                    Description = category.Description,
+                                    Id = category.Id,
+                                    Name = category.Name,
+                                    Slug = category.Slug
+                                }
+                            };
+
+                var items = query.Select(x => new Item
+                {
+                    Content = x.Content,
+                    Title = x.Title,
+                    Url = $"{_settings.Url}/{_settings.ArticleRoute.ToRoute(x.Category, x)}",
+                    Description = x.Summary,
+                    CommentsCount = x.CommentCount,
+                    Creator = x.UserId.ToString(),
+                    PublishDate = x.PublishDate,
+                    CommentsUrl = $"{_settings.Url}/{_settings.ArticleRoute.ToRoute(x.Category, x)}#comments",
+                    CommentRssUrl = $"{_settings.Url}/feed/"
+                });
+
+
+                var generator = new RssGenerator();
+                string xml = generator.GenerateRss(channel, items);
+
+
+                File.WriteAllText(Path.Combine(_env.WebRootPath, "feed.xml"), xml);
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "RSS generation failed");
+            }
+        }
+    }
+}