public void FormatSampleFeedEmpty()
{
var feed = new Rss10Feed
{
Channel = new Rss10Channel
{
Items = new List <Rss10Item>
{
new Rss10Item(),
},
},
};
var tryFormatResult = Rss10FeedFormatter.TryFormatRss10Feed(feed, out var document);
Assert.True(tryFormatResult);
var targetEncoding = Encoding.UTF8;
var xmlWriterSettings = new XmlWriterSettings
{
Encoding = targetEncoding,
Indent = true,
};
using (var memoryStream = new MemoryStream())
using (var streamWriter = new StreamWriter(memoryStream, targetEncoding))
using (var xmlWriter = XmlWriter.Create(streamWriter, xmlWriterSettings))
{
document.WriteTo(xmlWriter);
xmlWriter.Flush();
var xmlString = targetEncoding.GetString(memoryStream.ToArray());
Assert.NotEmpty(xmlString);
}
}
public void FormatSampleFeed()
{
var feed = new Rss10Feed
{
Channel = new Rss10Channel
{
Title = "This is my feed title",
Description = "Description of my feed",
TextInput = new Rss10TextInput
{
Name = "TextInput",
Title = "My text input",
Description = "Description of my text input",
Link = "https://example.org/my-text-input",
About = "https://example.org/my-text-input",
},
About = "https://example.org/channel",
Link = "https://example.org/channel",
Image = new Rss10Image
{
Title = "My channel image",
Link = "https://example.org/channel",
Url = "https://example.org/image.png",
About = "https://example.org/image.png",
},
Items = new List <Rss10Item>
{
new Rss10Item
{
Title = "My awesome article",
Description = "My awesome article description...",
Link = "https://example.org/article",
About = "https://example.org/article",
},
},
},
};
var tryFormatResult = Rss10FeedFormatter.TryFormatRss10Feed(feed, out var document);
Assert.True(tryFormatResult);
var targetEncoding = Encoding.UTF8;
var xmlWriterSettings = new XmlWriterSettings
{
Encoding = targetEncoding,
Indent = true,
};
using (var memoryStream = new MemoryStream())
using (var streamWriter = new StreamWriter(memoryStream, targetEncoding))
using (var xmlWriter = XmlWriter.Create(streamWriter, xmlWriterSettings))
{
document.WriteTo(xmlWriter);
xmlWriter.Flush();
var xmlString = targetEncoding.GetString(memoryStream.ToArray());
Assert.NotEmpty(xmlString);
}
}
public override BaseFeed Parse(string feedXml, XDocument feedDoc)
{
var rdf = feedDoc.Root;
var channel = rdf.GetElement("channel");
Rss10Feed feed = new Rss10Feed(feedXml, channel);
return(feed);
}
public static bool TryFormatRss10Feed(Rss10Feed feed, out XDocument document, ExtensionManifestDirectory extensionManifestDirectory = null)
{
document = default;
if (feed == null)
{
return(false);
}
document = new XDocument();
var rdfElement = new XElement(_rdf + "RDF");
document.Add(rdfElement);
var namespaceAliases = new XNamespaceAliasSet();
namespaceAliases.EnsureNamespaceAlias(Rss10Constants.RdfNamespaceAlias, _rdf);
namespaceAliases.EnsureNamespaceAlias(alias: null, _rss);
if (extensionManifestDirectory == null)
{
extensionManifestDirectory = ExtensionManifestDirectory.DefaultForRss;
}
if (!TryFormatRss10Channel(feed.Channel, namespaceAliases, extensionManifestDirectory, out var channelElement))
{
return(false);
}
rdfElement.Add(channelElement);
if (TryFormatRss10Image(feed.Channel.Image, referenceOnly: false, namespaceAliases, extensionManifestDirectory, out var imageElement))
{
rdfElement.Add(imageElement);
}
if (TryFormatRss10TextInput(feed.Channel.TextInput, referenceOnly: false, namespaceAliases, extensionManifestDirectory, out var textInputElement))
{
rdfElement.Add(textInputElement);
}
foreach (var itemToFormat in feed.Channel.Items)
{
if (TryFormatRss10Item(itemToFormat, referenceOnly: false, namespaceAliases, extensionManifestDirectory, out var itemElement))
{
rdfElement.Add(itemElement);
}
}
foreach (var namespaceAlias in namespaceAliases.OrderBy(x => x.Name.LocalName))
{
rdfElement.Add(namespaceAlias);
}
return(true);
}
public static bool TryParseRss10Feed(XDocument document, out Rss10Feed parsedFeed, ExtensionManifestDirectory extensionManifestDirectory = null)
{
parsedFeed = default;
var rdfElement = document?.Element(_rdf + "RDF");
if (rdfElement == null)
{
return(false);
}
var rssNamespace = rdfElement.Attribute("xmlns")?.Value;
XNamespace rss = null;
foreach (var ns in Rss10Constants.RecognizedNamespaces)
{
rss = ns;
if (rssNamespace == ns.NamespaceName)
{
break;
}
}
if (rss == null)
{
return(false);
}
if (extensionManifestDirectory == null)
{
extensionManifestDirectory = ExtensionManifestDirectory.DefaultForRss;
}
if (!TryParseRss10Channel(rdfElement.Element(rss + "channel"), rss, extensionManifestDirectory, out var parsedChannel))
{
return(false);
}
if (TryParseRss10Image(rdfElement.Element(rss + "image"), rss, extensionManifestDirectory, out var parsedImage))
{
parsedChannel.Image = parsedImage;
}
if (TryParseRss10TextInput(rdfElement.Element(rss + "textinput"), rss, extensionManifestDirectory, out var parsedTextInput))
{
parsedChannel.TextInput = parsedTextInput;
}
// items
foreach (var itemElement in rdfElement.Elements(rss + "item"))
{
if (TryParseRss10Item(itemElement, rss, extensionManifestDirectory, out var parsedItem))
{
parsedChannel.Items.Add(parsedItem);
}
}
parsedFeed = new Rss10Feed();
parsedFeed.Channel = parsedChannel;
return(true);
}