Move application files to sub-folder

2026-02-16 10:58:31 -05:00 · 2014-07-16 21:19:02 -04:00
parent 2af9d8c14f
commit f7cfa7c6cf
108 changed files with 0 additions and 0 deletions
--- a/Application/FeedParsers/RssParser.cs
+++ b/Application/FeedParsers/RssParser.cs
@@ -0,0 +1,121 @@
+using Common.Debug;
+using Common.Xml;
+using System.Xml;
+
+namespace FeedCenter.FeedParsers
+{
+    internal class RssParser : FeedParserBase
+    {
+        public RssParser(Feed feed) : base(feed) { }
+
+        public override FeedReadResult ParseFeed(string feedText)
+        {
+            try
+            {
+                // Create the XML document
+                var document = new XmlDocument { XmlResolver = null };
+
+                // Load the XML document from the text
+                document.LoadXml(feedText);
+
+                // Create the namespace manager
+                XmlNamespaceManager namespaceManager = document.GetAllNamespaces();
+
+                // Get the root node
+                XmlNode rootNode = document.DocumentElement;
+
+                // If we didn't find a root node then bail
+                if (rootNode == null)
+                    return FeedReadResult.UnknownError;
+
+                // Get the channel node
+                XmlNode channelNode = rootNode.SelectSingleNode("default:channel", namespaceManager);
+
+                if (channelNode == null)
+                    return FeedReadResult.InvalidXml;
+
+                // Initialize the sequence number for items
+                int sequence = 0;
+
+                // Loop over all nodes in the channel node
+                foreach (XmlNode node in channelNode.ChildNodes)
+                {
+                    // Handle each node that we find
+                    switch (node.Name)
+                    {
+                        case "title":
+                            Feed.Title = System.Net.WebUtility.HtmlDecode(node.InnerText).Trim();
+                            break;
+
+                        case "link":
+                            Feed.Link = node.InnerText.Trim();
+                            break;
+
+                        case "description":
+                            Feed.Description = node.InnerText;
+                            break;
+
+                        case "item":
+                            HandleFeedItem(namespaceManager, node, ref sequence);
+                            break;
+                    }
+                }
+
+                return FeedReadResult.Success;
+            }
+            catch (XmlException xmlException)
+            {
+                Tracer.WriteLine("XML error: " + xmlException.Message + "\n" + feedText);
+
+                return FeedReadResult.InvalidXml;
+            }
+        }
+
+        protected override FeedItem ParseFeedItem(XmlNamespaceManager namespaceManager, XmlNode node)
+        {
+            // Create a new feed item
+            FeedItem feedItem = FeedItem.Create();
+
+            // Loop over all nodes in the feed node
+            foreach (XmlNode childNode in node.ChildNodes)
+            {
+                // Handle each node that we find
+                switch (childNode.Name.ToLower())
+                {
+                    case "title":
+                        feedItem.Title = System.Net.WebUtility.HtmlDecode(childNode.InnerText).Trim();
+                        break;
+
+                    case "link":
+                        feedItem.Link = childNode.InnerText.Trim();
+                        break;
+
+                    case "guid":
+                        feedItem.Guid = childNode.InnerText.Trim();
+
+                        bool permaLink = true;
+
+                        if (childNode.Attributes != null)
+                        {
+                            var permaLinkNode = childNode.Attributes.GetNamedItem("isPermaLink");
+                            permaLink = (permaLinkNode == null || permaLinkNode.Value == "true");
+                        }
+
+                        if (permaLink)
+                            feedItem.Link = feedItem.Guid;
+
+                        break;
+
+                    case "description":
+                        feedItem.Description = System.Net.WebUtility.HtmlDecode(childNode.InnerText);
+                        break;
+                }
+            }
+
+            if (string.IsNullOrWhiteSpace(feedItem.Guid))
+                feedItem.Guid = feedItem.Link;
+
+            return feedItem;
+        }
+    }
+}