Good riddance SyndicationFeed

NzbDrone.Core/Indexers/BasicRssParser.cs

@@ -2,8 +2,8 @@
 using System.Collections.Generic;
 using System.Globalization;
 using System.IO;
-using System.ServiceModel.Syndication;
 using System.Text.RegularExpressions;
+using System.Xml.Linq;
 using NLog;
 using NzbDrone.Core.Parser.Model;
 
@@ -25,27 +25,27 @@ public BasicRssParser()
 
         public IEnumerable<ReportInfo> Process(Stream source)
         {
-            //TODO: replace this BS with plain Linq to XML
+            var xdoc = XDocument.Load(source);
-            var reader = new SyndicationFeedXmlReader(source);
+            var items = xdoc.Descendants("item");
-            var feed = SyndicationFeed.Load(reader).Items;
 
             var result = new List<ReportInfo>();
 
-            foreach (var syndicationItem in feed)
+            foreach (var item in items)
             {
                 try
                 {
-                    var parsedEpisode = ParseFeed(syndicationItem);
+                    var reportInfo = ParseFeedItem(item);
-                    if (parsedEpisode != null)
+                    if (reportInfo != null)
                     {
-                        parsedEpisode.NzbUrl = GetNzbUrl(syndicationItem);
+                        reportInfo.NzbUrl = GetNzbUrl(item);
-                        parsedEpisode.NzbInfoUrl = GetNzbInfoUrl(syndicationItem);
+                        reportInfo.NzbInfoUrl = GetNzbInfoUrl(item);
-                        result.Add(parsedEpisode);
+
+                        result.Add(reportInfo);
                     }
                 }
                 catch (Exception itemEx)
                 {
-                    itemEx.Data.Add("Item", syndicationItem.Title);
+                    itemEx.Data.Add("Item", item.Title());
                     _logger.ErrorException("An error occurred while processing feed item", itemEx);
                 }
             }
@@ -54,37 +54,37 @@ public IEnumerable<ReportInfo> Process(Stream source)
         }
 
 
-        protected virtual string GetTitle(SyndicationItem syndicationItem)
+        protected virtual string GetTitle(XElement item)
         {
-            return syndicationItem.Title.Text;
+            return item.Title();
         }
 
-        protected virtual string GetNzbUrl(SyndicationItem item)
+        protected virtual string GetNzbUrl(XElement item)
         {
-            return item.Links[0].Uri.ToString();
+            return item.Links()[0];
         }
 
-        protected virtual string GetNzbInfoUrl(SyndicationItem item)
+        protected virtual string GetNzbInfoUrl(XElement item)
         {
             return String.Empty;
         }
 
-        protected virtual ReportInfo PostProcessor(SyndicationItem item, ReportInfo currentResult)
+        protected virtual ReportInfo PostProcessor(XElement item, ReportInfo currentResult)
         {
             return currentResult;
         }
 
-        private ReportInfo ParseFeed(SyndicationItem item)
+        private ReportInfo ParseFeedItem(XElement item)
         {
             var title = GetTitle(item);
 
             var reportInfo = new ReportInfo();
 
             reportInfo.Title = title;
-            reportInfo.Age = DateTime.Now.Date.Subtract(item.PublishDate.Date).Days;
+            reportInfo.Age = DateTime.Now.Date.Subtract(item.PublishDate().Date).Days;
             reportInfo.ReleaseGroup = ParseReleaseGroup(title);
 
-            _logger.Trace("Parsed: {0} from: {1}", reportInfo, item.Title.Text);
+            _logger.Trace("Parsed: {0} from: {1}", reportInfo, item.Title());
 
             return PostProcessor(item, reportInfo);
         }

NzbDrone.Core/Indexers/Newznab/NewznabParser.cs

@@ -1,11 +1,15 @@
 using System;
-using System.ServiceModel.Syndication;
+using System.Drawing;
+using System.Linq;
+using System.Xml.Linq;
 using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.Indexers.Newznab
 {
     public class NewznabParser : BasicRssParser
     {
+        private static XNamespace NEWZNAB = "http://www.newznab.com/DTD/2010/feeds/attributes/";
+        
         private readonly Newznab _newznabIndexer;
 
         public NewznabParser(Newznab newznabIndexer)
@@ -13,31 +17,22 @@ public NewznabParser(Newznab newznabIndexer)
             _newznabIndexer = newznabIndexer;
         }
 
-        protected override string GetNzbInfoUrl(SyndicationItem item)
+        protected override string GetNzbInfoUrl(XElement item)
         {
-            return item.Id;
+            return item.Comments().Replace("#comments", "");
         }
 
-        protected override ReportInfo PostProcessor(SyndicationItem item, ReportInfo currentResult)
+        protected override ReportInfo PostProcessor(XElement item, ReportInfo currentResult)
         {
             if (currentResult != null)
             {
-                if (item.Links.Count > 1)
+                var attributes = item.Elements(NEWZNAB + "attr");
-                {
+                var sizeElement = attributes.Single(e => e.Attribute("name").Value == "size");
-                    currentResult.Size = item.Links[1].Length;
-                }
 
-                currentResult.Indexer = GetName(item);
+                currentResult.Size = Convert.ToInt64(sizeElement.Attribute("value").Value);
             }
 
             return currentResult;
         }
-
-
-        private string GetName(SyndicationItem item)
-        {
-            var hostname = item.Links[0].Uri.DnsSafeHost.ToLower();
-            return String.Format("{0}_{1}", _newznabIndexer.Name, hostname);
-        }
     }
 }

NzbDrone.Core/Indexers/NzbClub/NzbClubParser.cs

@@ -1,6 +1,6 @@
 using System;
-using System.ServiceModel.Syndication;
 using System.Text.RegularExpressions;
+using System.Xml.Linq;
 using NLog;
 using NzbDrone.Core.Parser.Model;
 
@@ -18,11 +18,11 @@ public NzbClubParser()
         }
 
 
-        protected override ReportInfo PostProcessor(SyndicationItem item, ReportInfo currentResult)
+        protected override ReportInfo PostProcessor(XElement item, ReportInfo currentResult)
         {
             if (currentResult != null)
             {
-                var match = SizeRegex.Match(item.Summary.Text);
+                var match = SizeRegex.Match(item.Description());
 
                 if (match.Success && match.Groups["size"].Success)
                 {
@@ -30,26 +30,33 @@ protected override ReportInfo PostProcessor(SyndicationItem item, ReportInfo cur
                 }
                 else
                 {
-                   logger.Warn("Couldn't parse size from {0}", item.Summary.Text);
+                   logger.Warn("Couldn't parse size from {0}", item.Description());
                 }
             }
 
             return currentResult;
         }
 
-        protected override string GetTitle(SyndicationItem syndicationItem)
+        protected override string GetTitle(XElement item)
         {
-            var title = ParseHeader(syndicationItem.Title.Text);
+            var title = ParseHeader(item.Title());
 
             if (String.IsNullOrWhiteSpace(title))
-                return syndicationItem.Title.Text;
+                return item.Title();
 
             return title;
         }
 
-        protected override string GetNzbInfoUrl(SyndicationItem item)
+        protected override string GetNzbInfoUrl(XElement item)
         {
-            return item.Links[1].Uri.ToString();
+            return item.Links()[0];
+        }
+
+        protected override string GetNzbUrl(XElement item)
+        {
+            var enclosure = item.Element("enclosure");
+
+            return enclosure.Attribute("url").Value;
         }
     }
 }

NzbDrone.Core/Indexers/Omgwtfnzbs/Omgwtfnzbs.cs

@@ -10,6 +10,14 @@ public override string Name
             get { return "omgwtfnzbs"; }
         }
 
+        public override IParseFeed Parser
+        {
+            get
+            {
+                return new OmgwtfnzbsParser();
+            }
+        }
+
         public override IEnumerable<string> RecentFeed
         {
             get

NzbDrone.Core/Indexers/Omgwtfnzbs/OmgwtfnzbsParser.cs

@@ -1,21 +1,16 @@
 using System;
-using System.ServiceModel.Syndication;
 using System.Text.RegularExpressions;
+using System.Xml.Linq;
 using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.Indexers.Omgwtfnzbs
 {
     public class OmgwtfnzbsParser : BasicRssParser
     {
-        protected override string GetNzbUrl(SyndicationItem item)
+        protected override string GetNzbInfoUrl(XElement item)
-        {
-            return item.Links[0].Uri.ToString();
-        }
-
-        protected override string GetNzbInfoUrl(SyndicationItem item)
         {
             //Todo: Me thinks I need to parse details to get this...
-            var match = Regex.Match(item.Summary.Text, @"(?:\<b\>View NZB\:\<\/b\>\s\<a\shref\=\"")(?<URL>.+)(?:\""\starget)",
+            var match = Regex.Match(item.Description(), @"(?:\<b\>View NZB\:\<\/b\>\s\<a\shref\=\"")(?<URL>.+)(?:\""\starget)",
                                     RegexOptions.IgnoreCase | RegexOptions.Compiled);
 
             if (match.Success)
@@ -26,11 +21,11 @@ protected override string GetNzbInfoUrl(SyndicationItem item)
             return String.Empty;
         }
 
-        protected override ReportInfo PostProcessor(SyndicationItem item, ReportInfo currentResult)
+        protected override ReportInfo PostProcessor(XElement item, ReportInfo currentResult)
         {
             if (currentResult != null)
             {
-                var sizeString = Regex.Match(item.Summary.Text, @"Size:\<\/b\>\s\d+\.\d{1,2}\s\w{2}\<br \/\>", RegexOptions.IgnoreCase | RegexOptions.Compiled).Value;
+                var sizeString = Regex.Match(item.Description(), @"(?:Size:\<\/b\>\s\d+\.)\d{1,2}\s\w{2}(?:\<br \/\>)", RegexOptions.IgnoreCase | RegexOptions.Compiled).Value;
                 currentResult.Size = GetReportSize(sizeString);
             }
 

NzbDrone.Core/Indexers/SyndicationFeedXmlReader.cs

@@ -1,98 +0,0 @@
-//http://stackoverflow.com/questions/210375/problems-reading-rss-with-c-and-net-3-5
-//https://connect.microsoft.com/VisualStudio/feedback/details/325421/syndicationfeed-load-fails-to-parse-datetime-against-a-real-world-feeds-ie7-can-read
-
-using System;
-using System.Globalization;
-using System.IO;
-using System.Linq;
-using System.Reflection;
-using System.ServiceModel.Syndication;
-using System.Threading;
-using System.Xml;
-using NLog;
-
-namespace NzbDrone.Core.Indexers
-{
-    public class SyndicationFeedXmlReader : XmlTextReader
-    {
-        private static readonly Logger logger = LogManager.GetCurrentClassLogger();
-
-        private static readonly string[] rss20DateTimeHints = { "pubDate" };
-        private static readonly string[] atom10DateTimeHints = { "updated", "published", "lastBuildDate" };
-        private bool _isRss2DateTime;
-        private bool _isAtomDateTime;
-
-        private static readonly MethodInfo rss20FeedFormatterMethodInfo = typeof(Rss20FeedFormatter).GetMethod("DateFromString", BindingFlags.NonPublic | BindingFlags.Static);
-        private static readonly MethodInfo atom10FeedFormatterMethodInfo = typeof(Atom10FeedFormatter).GetMethod("DateFromString", BindingFlags.NonPublic | BindingFlags.Instance);
-
-        public SyndicationFeedXmlReader(Stream stream) : base(stream) { }
-
-        public override bool IsStartElement(string localname, string ns)
-        {
-            _isRss2DateTime = rss20DateTimeHints.Contains(localname);
-            _isAtomDateTime = atom10DateTimeHints.Contains(localname);
-
-            CheckForError();       
-
-            return base.IsStartElement(localname, ns);
-        }
-
-        public override string ReadString()
-        {
-            var dateVal = base.ReadString();
-
-            try
-            {
-                if (_isRss2DateTime)
-                {
-                    rss20FeedFormatterMethodInfo.Invoke(null, new object[] { dateVal, this });
-                }
-                if (_isAtomDateTime)
-                {
-                    atom10FeedFormatterMethodInfo.Invoke(new Atom10FeedFormatter(), new object[] { dateVal, this });
-                }
-            }
-            catch (TargetInvocationException e)
-            {
-                DateTime parsedDate;
-
-                if (!DateTime.TryParse(dateVal, new CultureInfo("en-US"), DateTimeStyles.None, out parsedDate))
-                {
-                    parsedDate = DateTime.UtcNow;
-                    logger.WarnException("Unable to parse Feed date " + dateVal, e);
-                }
-
-                var currentCulture = Thread.CurrentThread.CurrentCulture;
-                Thread.CurrentThread.CurrentCulture = new CultureInfo("en-US");
-                dateVal = parsedDate.ToString("ddd, dd MMM yyyy HH:mm:ss zzz");
-                dateVal = dateVal.Remove(dateVal.LastIndexOf(':'), 1);
-                Thread.CurrentThread.CurrentCulture = currentCulture;
-            }
-
-            return dateVal;
-        }
-
-        private void CheckForError()
-        {
-            if (MoveToContent() == XmlNodeType.Element)
-            {
-               if (Name != "error")
-                    return;
-
-                var message = "Error: ";
-
-                if (HasAttributes)
-                {
-                    while (MoveToNextAttribute())
-                    {
-                        message += String.Format(" [{0}:{1}]", Name, Value);
-                    }
-                }
-
-                logger.Error("Error in RSS feed: {0}", message);
-                throw new Exception(message);
-            }
-            
-        }
-    }
-}

NzbDrone.Core/Indexers/Wombles/WomblesParser.cs

@@ -1,21 +1,16 @@
-using System.ServiceModel.Syndication;
+using System.Xml.Linq;
 using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.Indexers.Wombles
 {
     public class WomblesParser : BasicRssParser
     {
-        protected override string GetNzbUrl(SyndicationItem item)
+        protected override string GetNzbInfoUrl(XElement item)
-        {
-            return item.Links[0].Uri.ToString();
-        }
-
-        protected override string GetNzbInfoUrl(SyndicationItem item)
         {
             return null;
         }
 
-        protected override ReportInfo PostProcessor(SyndicationItem item, ReportInfo currentResult)
+        protected override ReportInfo PostProcessor(XElement item, ReportInfo currentResult)
         {
             if (currentResult != null)
             {

NzbDrone.Core/Indexers/XElementExtensions.cs

@@ -0,0 +1,52 @@
+using System;
+using System.Collections.Generic;
+using System.Data.Odbc;
+using System.Linq;
+using System.Text;
+using System.Xml.Linq;
+
+namespace NzbDrone.Core.Indexers
+{
+    public static class XElementExtensions
+    {
+        public static string Title(this XElement item)
+        {
+            return TryGetValue(item, "title", "Unknown");
+        }
+
+        public static DateTime PublishDate(this XElement item)
+        {
+            return DateTime.Parse(TryGetValue(item, "pubDate"));
+        }
+
+        public static List<String> Links(this XElement item)
+        {
+            var result = new List<String>();
+            var elements = item.Elements("link");
+
+            foreach (var link in elements)
+            {
+                result.Add(link.Value);
+            }
+
+            return result;
+        }
+
+        public static string Description(this XElement item)
+        {
+            return TryGetValue(item, "description");
+        }
+
+        public static string Comments(this XElement item)
+        {
+            return TryGetValue(item, "comments");
+        }
+
+        private static string TryGetValue(XElement item, string elementName, string defaultValue = "")
+        {
+            var element = item.Element(elementName);
+
+            return element != null ? element.Value : defaultValue;
+        }
+    }
+}

NzbDrone.Core/NzbDrone.Core.csproj

@@ -207,6 +207,7 @@
     <Compile Include="Indexers\IndexerSettingUpdatedEvent.cs" />
     <Compile Include="Indexers\IndexerWithSetting.cs" />
     <Compile Include="Indexers\RssSyncCommand.cs" />
+    <Compile Include="Indexers\XElementExtensions.cs" />
     <Compile Include="Instrumentation\Commands\TrimLogCommand.cs" />
     <Compile Include="Instrumentation\SetLoggingLevel.cs" />
     <Compile Include="Jobs\TaskManager.cs" />
@@ -435,9 +436,6 @@
     <Compile Include="Indexers\IndexerFetchService.cs">
       <SubType>Code</SubType>
     </Compile>
-    <Compile Include="Indexers\SyndicationFeedXmlReader.cs">
-      <SubType>Code</SubType>
-    </Compile>
     <Compile Include="MediaFiles\MediaFileService.cs">
       <SubType>Code</SubType>
     </Compile>