Problems downloading Atom Feed

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3/1/2011 11:25:38 AM
retroviz
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Problems downloading Atom Feed

Hi Joe,

Are Atom feeds supported by mojoPortal's Feedmanager.

I've used the same feed for about a year on a 2.3.3.2 mojoPortal site. As of yesterday, the feed stopped working. I get the following error:

2011-03-01 16:43:05,020 ERROR mojoPortal.Web.FeedUI.FeedCache - There was a problem trying to read the feed for url http://www.vertikal.net/en/rss/news/.  Ignoring.

System.Net.WebException: The underlying connection was closed: The connection was closed unexpectedly.
   at System.Net.HttpWebRequest.GetResponse()
   at System.Xml.XmlDownloadManager.GetNonFileStream(Uri uri, ICredentials credentials)
   at System.Xml.XmlDownloadManager.GetStream(Uri uri, ICredentials credentials)
   at System.Xml.XmlUrlResolver.GetEntity(Uri absoluteUri, String role, Type ofObjectToReturn)
   at System.Xml.XmlTextReaderImpl.OpenStream(Uri uri)
   at System.Xml.XmlTextReaderImpl.DtdParserProxy_PushExternalSubset(String systemId, String publicId)
   at System.Xml.XmlTextReaderImpl.DtdParserProxy.System.Xml.IDtdParserAdapter.PushExternalSubset(String systemId, String publicId)
   at System.Xml.DtdParser.ParseExternalSubset()
   at System.Xml.DtdParser.ParseInDocumentDtd(Boolean saveInternalSubset)
   at System.Xml.DtdParser.Parse(Boolean saveInternalSubset)
   at System.Xml.XmlTextReaderImpl.DtdParserProxy.Parse(Boolean saveInternalSubset)
   at System.Xml.XmlTextReaderImpl.ParseDoctypeDecl()
   at System.Xml.XmlTextReaderImpl.ParseDocumentContent()
   at System.Xml.XmlTextReaderImpl.Read()
   at System.Xml.XPath.XPathDocument.LoadFromReader(XmlReader reader, XmlSpace space)
   at System.Xml.XPath.XPathDocument..ctor(TextReader textReader)
   at Argotic.Common.SyndicationEncodingUtility.CreateSafeNavigator(String xml)
   at Argotic.Common.SyndicationEncodingUtility.CreateSafeNavigator(Stream stream, Encoding encoding)
   at Argotic.Common.SyndicationEncodingUtility.CreateSafeNavigator(Stream stream)
   at Argotic.Common.SyndicationEncodingUtility.CreateSafeNavigator(Uri source, ICredentials credentials, IWebProxy proxy, Encoding encoding)
   at Argotic.Syndication.GenericSyndicationFeed.Load(Uri source, ICredentials credentials, IWebProxy proxy, SyndicationResourceLoadSettings settings)
   at Argotic.Syndication.GenericSyndicationFeed.Create(Uri source, ICredentials credentials, IWebProxy proxy, SyndicationResourceLoadSettings settings)
   at Argotic.Syndication.GenericSyndicationFeed.Create(Uri source)
   at mojoPortal.Web.FeedUI.FeedCache.GetRssFeedEntries(Int32 moduleId, Guid moduleGuid, Int32 entryCacheTimeout, Int32 maxDaysOld, Int32 maxEntriesPerFeed, Boolean enableSelectivePublishing)

 

As you can see from navigating the url directly, the feed is working fine.

Thanks

Ben

 

3/1/2011 12:20:07 PM
Jamie E
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Re: Problems downloading Atom Feed

Hi, I verified that it's not working for me either. I have used Atom feeds in the past, and since it was working for you previously, my guess is that something must have changed in the feed structure to make it noncompliant with the standard, or at least outside of what's expected by Feed Manager's processing engine.

When I pull the feed up in IE 8, the feed declaration is

<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">

Per Wikipedia, for an Atom 1.0 feed it should read:

<feed xmlns="http://www.w3.org/2005/Atom">

If that site has any kind of support mechanism, you may want to ask them if there's anything they can do on their side to get the feed back into spec. You could also try running the feed through Yahoo Pipes. That may be able to parse it out and it will output a standard RSS feed that is consumable by Feed Manager.

Jamie

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