public void SaveFeed(Feed feed)
        {
            if (feed.FeedID == 0)
            {
                _feedTable.InsertOnSubmit(feed);
            }

            _context.SubmitChanges();
        }
        public List<FeedViewModel> BuildFeedsViewModelList(List<Feed> feeds, Feed selectedFeed)
        {
            List<FeedViewModel> models = new List<FeedViewModel>();

            foreach (var f in feeds)
            {
                var feedViewModel = new FeedViewModel { Feed = f };
                feedViewModel.UnreadCount = _repository.Items.Count(x => x.FeedID == f.FeedID && x.IsRead == false);

                if (selectedFeed != null && f.FeedID == selectedFeed.FeedID)
                {
                    feedViewModel.Selected = true;
                }

                models.Add(feedViewModel);
            }

            return models;
        }
 public void DeleteFeed(Feed feed)
 {
     _feedTable.DeleteOnSubmit(feed);
     _context.SubmitChanges();
 }
        public ActionResult Subscribe(string url)
        {
            if (url.Trim() == string.Empty)
            {
                TempData["Error"] = "URL is required to add a feed";
            }
            else
            {
                try
                {
                    // Check for duplicates
                    var feed = _repository.Feeds.FirstOrDefault(x => x.URL == url);
                    if (feed == null)
                    {
                        feed = new Feed { FeedID = 0, URL = url };
                    }

                    _services.FillFeed(feed);
                    _repository.SaveFeed(feed);

                    TempData["Message"] = feed.DisplayName + " added";
                }
                catch (Exception ex)
                {
                    TempData["Error"] = "Error: " + ex.Message.ToString();
                }
            }

            return RedirectToAction("Index");
        }
        public void Fetch(Feed feed)
        {
            var source = GetFeed(HttpUtility.UrlDecode(feed.URL));
            var syndicationItems = source.Items.ToList();

            var items = new List<Item>();
            foreach (var i in syndicationItems)
            {
                // An article link is required... this is how we uniquely identify articles.
                var link = i.Links.FirstOrDefault(x => x.RelationshipType == "alternate");
                if (link == null)
                {
                    continue;
                }

                string itemUrl = (link.Uri.ToString());

                var item = new Item { ItemID = 0 };
                item.FeedID = feed.FeedID;
                item.URL = itemUrl;
                item.IsStarred = false;
                item.IsRead = false;
                item.Title = (i.Title != null) ? i.Title.Text : "No title";

                if (IsValidSqlDateTime(i.PublishDate))
                {
                    item.PublishDate = i.PublishDate.DateTime;
                }
                else
                {
                    item.PublishDate = DateTime.Now;
                }

                // The content may be encoded. Go find the encoded content XML node and get the content.
                StringBuilder sb = new StringBuilder();
                foreach (SyndicationElementExtension extension in i.ElementExtensions)
                {
                    XElement e = extension.GetObject<XElement>();
                    if (e.Name.LocalName == "encoded" && e.Name.Namespace.ToString().Contains("content"))
                    {
                        sb.Append(e.Value);
                    }
                }

                item.Content = sb.ToString();

                // Otherwise use the summary
                if (item.Content == string.Empty && i.Summary != null)
                {
                    item.Content = i.Summary.Text;
                }

                item.Content = this.ScrubScripts(item.Content);

                items.Add(item);
            }

            // Order the list and save it to the database
            foreach (var i in items.OrderBy(x => x.PublishDate))
            {
                // Check if we've already saved this item
                if (!_repository.Items.Any(x => x.URL == i.URL))
                {
                    i.FetchDate = DateTime.Now;

                    // Don't save advertisements
                    if (!i.Title.ToLower().Contains("sponsored post"))
                    {
                        _repository.SaveItem(i);
                    }
                }
            }

            feed.LastRefresh = DateTime.Now;
            _repository.SaveFeed(feed);
        }
        public void FillFeed(Feed feed)
        {
            SyndicationFeed source = GetFeed(feed.URL);

            if (source == null)
            {
                throw new Exception("Not a valid Atom or RSS feed.");
            }
            var link = source.Links.FirstOrDefault(x => x.RelationshipType == "alternate");
            feed.BlogURL = link.GetAbsoluteUri().AbsoluteUri;
            feed.DisplayName = source.Title.Text;

            if (feed.DisplayName == string.Empty)
            {
                feed.DisplayName = link.GetAbsoluteUri().Host;
            }

            // Load the favicon
            byte[] bytes = new byte[0];
            var imageAddress = "http://" + link.Uri.Host + "/favicon.ico";

            try
            {
                WebClient client = new WebClient();
                MemoryStream stream = new MemoryStream(client.DownloadData(imageAddress));
                feed.Favicon = stream.ToArray();
            }
            catch
            {
                // We'll let it pass if we can't find the image
            }
        }
Exemplo n.º 7
0
 public void DeleteFeed(Feed feed)
 {
     _feedTable.DeleteOnSubmit(feed);
     _context.SubmitChanges();
 }
        public void Fetch(Feed feed)
        {
            var source           = GetFeed(HttpUtility.UrlDecode(feed.URL));
            var syndicationItems = source.Items.ToList();

            var items = new List <Item>();

            foreach (var i in syndicationItems)
            {
                // An article link is required... this is how we uniquely identify articles.
                var link = i.Links.FirstOrDefault(x => x.RelationshipType == "alternate");
                if (link == null)
                {
                    continue;
                }

                string itemUrl = (link.Uri.ToString());

                var item = new Item {
                    ItemID = 0
                };
                item.FeedID    = feed.FeedID;
                item.URL       = itemUrl;
                item.IsStarred = false;
                item.IsRead    = false;
                item.Title     = (i.Title != null) ? i.Title.Text : "No title";

                if (IsValidSqlDateTime(i.PublishDate))
                {
                    item.PublishDate = i.PublishDate.DateTime;
                }
                else
                {
                    item.PublishDate = DateTime.Now;
                }

                // The content may be encoded. Go find the encoded content XML node and get the content.
                StringBuilder sb = new StringBuilder();
                foreach (SyndicationElementExtension extension in i.ElementExtensions)
                {
                    XElement e = extension.GetObject <XElement>();
                    if (e.Name.LocalName == "encoded" && e.Name.Namespace.ToString().Contains("content"))
                    {
                        sb.Append(e.Value);
                    }
                }

                item.Content = sb.ToString();

                // Otherwise use the summary
                if (item.Content == string.Empty && i.Summary != null)
                {
                    item.Content = i.Summary.Text;
                }

                item.Content = this.ScrubScripts(item.Content);

                items.Add(item);
            }

            // Order the list and save it to the database
            foreach (var i in items.OrderBy(x => x.PublishDate))
            {
                // Check if we've already saved this item
                if (!_repository.Items.Any(x => x.URL == i.URL))
                {
                    i.FetchDate = DateTime.Now;

                    // Don't save advertisements
                    if (!i.Title.ToLower().Contains("sponsored post"))
                    {
                        _repository.SaveItem(i);
                    }
                }
            }

            feed.LastRefresh = DateTime.Now;
            _repository.SaveFeed(feed);
        }