public void FormatSampleFeedEmpty()
{
var feed = new Rss20Feed
{
Channel = new Rss20Channel
{
Items = new List <Rss20Item>
{
new Rss20Item(),
},
},
};
var tryFormatResult = Rss20FeedFormatter.TryFormatRss20Feed(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);
}
}
protected virtual void ParseRss20Header(Rss20Feed rssFeed, string xml)
{
var document = XDocument.Parse(xml);
var channel = document.Root.Element("channel");
rssFeed.Title = channel.Element("title").Value;
rssFeed.Description = channel.Element("description").Value;
var linkNode = channel.Element("link");
rssFeed.Link = linkNode == null ? string.Empty : linkNode.Value;
var dateTimeNode = (from dateSelector in channel.Elements("pubDate")
select dateSelector).FirstOrDefault();
if (dateTimeNode == null)
{
rssFeed.LastUpdated = DateTime.UtcNow;
}
else
{
DateTime timeOut;
DateTime.TryParse(dateTimeNode.Value, out timeOut);
rssFeed.LastUpdated = timeOut.ToUniversalTime();
}
var generatorNode = channel.Element("generator");
rssFeed.Generator = generatorNode == null ? string.Empty : generatorNode.Value;
var languageNode = channel.Element("language");
rssFeed.Language = languageNode == null ? string.Empty : languageNode.Value;
}
private IFeed CreateFeed(FeedType feedtype, string feedxml)
{
try
{
IFeed returnFeed;
if (feedtype == FeedType.Atom10)
{
returnFeed = new Atom10Feed(feedxml);
}
else
{
returnFeed = new Rss20Feed(feedxml);
}
try
{
this.parser.ParseFeed(returnFeed, feedxml);
}
catch (System.Xml.XmlException ex)
{
throw new InvalidFeedXmlException("The xml for feed is invalid", ex);
}
return(returnFeed);
}
catch (XmlException ex)
{
throw new InvalidFeedXmlException("Invalid XML for feed", ex);
}
}
public static bool TryParseRss20Feed(XDocument document, out Rss20Feed parsedFeed, ExtensionManifestDirectory extensionManifestDirectory = null)
{
parsedFeed = default;
var rssElement = document?.Element("rss");
if (rssElement == null)
{
return(false);
}
var rssVersion = rssElement.Attribute("version")?.Value;
if (!Rss20Constants.RecognizedVersions.Contains(rssVersion))
{
return(false);
}
if (extensionManifestDirectory == null)
{
extensionManifestDirectory = ExtensionManifestDirectory.DefaultForRss;
}
if (!TryParseRss20Channel(rssElement.Element("channel"), extensionManifestDirectory, out var parsedChannel))
{
return(false);
}
parsedFeed = new Rss20Feed();
parsedFeed.Channel = parsedChannel;
return(true);
}
public override BaseFeed Parse(string feedXml, XDocument feedDoc)
{
var rss = feedDoc.Root;
var channel = rss.GetElement("channel");
Rss20Feed feed = new Rss20Feed(feedXml, channel);
return(feed);
}
private void ParseRss20Items(Rss20Feed rssFeed, string xml)
{
var document = XDocument.Parse(xml);
var feedItemNodes = document.Root.Element("channel").Elements("item");
foreach (var item in feedItemNodes)
{
rssFeed.Items.Add(ParseRss20SingleItem(item));
}
}
protected override void TestFeedParseCorrectness(IFeedKnownValueTest testcase, IFeed resultantItem)
{
Rss20Feed rssItem = (Rss20Feed)resultantItem;
RssFeedKnownValueTest rssTest = (RssFeedKnownValueTest)testcase;
base.TestFeedParseCorrectness(testcase, resultantItem);
//Assert that the two descriptions are equivalent
Assert.That(rssItem.Description == rssTest.Description);
//Assert that the two languages are equivalent
Assert.That(rssItem.Language == rssTest.Language);
}
private void ParseRss20Header(Rss20Feed rssFeed, string xml)
{
var xmlDoc = new XmlDocument();
xmlDoc.LoadXml(xml);
var titleNode = xmlDoc.SelectSingleNode("/rss/channel/title");
rssFeed.Title = titleNode.InnerText;
var descriptionNode = xmlDoc.SelectSingleNode("/rss/channel/description");
rssFeed.Description = descriptionNode == null ? string.Empty : descriptionNode.InnerText;
var linkNode = xmlDoc.SelectSingleNode("/rss/channel/link");
rssFeed.Link = linkNode == null ? string.Empty : linkNode.InnerText;
var dateTimeNode = xmlDoc.SelectSingleNode("//pubDate[1]");
if (dateTimeNode == null) //We have to have a date, so we'll use the date/time when we polled the RSS feed as the default.
{
rssFeed.LastUpdated = DateTime.UtcNow;
}
else
{
DateTime timeOut;
DateTime.TryParse(dateTimeNode.InnerText, out timeOut);
rssFeed.LastUpdated = timeOut.ToUniversalTime();
}
var generatorNode = xmlDoc.SelectSingleNode("/rss/channel/generator");
rssFeed.Generator = generatorNode == null ? string.Empty : generatorNode.InnerText;
var languageNode = xmlDoc.SelectSingleNode("/rss/channel/language");
rssFeed.Language = languageNode == null ? string.Empty : languageNode.InnerText;
}
public static bool TryFormatRss20Feed(Rss20Feed feed, out XDocument document, ExtensionManifestDirectory extensionManifestDirectory = null)
{
document = default;
if (feed == null)
{
return(false);
}
document = new XDocument();
var rssElement = new XElement("rss", new XAttribute("version", Rss20Constants.Version));
document.Add(rssElement);
if (extensionManifestDirectory == null)
{
extensionManifestDirectory = ExtensionManifestDirectory.DefaultForRss;
}
var namespaceAliases = new XNamespaceAliasSet();
if (!TryFormatRss20Channel(feed.Channel, namespaceAliases, extensionManifestDirectory, out var channelElement))
{
return(false);
}
rssElement.Add(channelElement);
foreach (var namespaceAlias in namespaceAliases.OrderBy(x => x.Name.LocalName))
{
rssElement.Add(namespaceAlias);
}
return(true);
}
public void FormatSampleFeed()
{
var feed = new Rss20Feed
{
Channel = new Rss20Channel
{
Generator = "My Awesome Generator 3000",
Title = "This is my feed title",
Categories = new List <Rss20Category> {
new Rss20Category {
Name = "Alpha"
}, new Rss20Category {
Name = "Beta"
}, new Rss20Category {
Name = "Gama", Domain = "https://example.org/category-domain"
},
},
Copyright = "Copyright 2019, All rights reserved",
WebMaster = "[email protected] (John Doe)",
ManagingEditor = "[email protected] (Jane Doe)",
Language = "en-US",
PubDate = new DateTimeOffset(2019, 01, 01, 12, 30, 00, TimeSpan.FromHours(2)),
Cloud = new Rss20Cloud
{
Domain = "https://example.org/cloud",
RegisterProcedure = "abc",
Protocol = "def",
Path = "/ghi",
Port = "9000",
},
Description = "Description of my feed",
LastBuildDate = new DateTimeOffset(2019, 01, 01, 4, 30, 00, TimeSpan.FromHours(0)),
Ttl = TimeSpan.FromHours(3),
TextInput = new Rss20TextInput
{
Name = "TextInput", Title = "My text input", Description = "Description of my text input", Link = "https://example.org/my-text-input",
},
SkipHours = new List <int> {
1, 2, 3
},
Docs = "https://example.org/docs",
SkipDays = new List <DayOfWeek> {
DayOfWeek.Friday, DayOfWeek.Monday,
},
Link = "https://example.org/channel",
Image = new Rss20Image
{
Title = "My channel image",
Width = 100,
Height = 50,
Description = "My channel image description",
Link = "https://example.org/channel",
Url = "https://example.org/image.png",
},
Items = new List <Rss20Item>
{
new Rss20Item
{
Title = "My awesome article",
Categories = new List <Rss20Category> {
new Rss20Category {
Name = "Delta", Domain = "https://example.org/category-domain"
},
},
PubDate = new DateTimeOffset(2019, 01, 01, 5, 30, 00, TimeSpan.FromHours(0)),
Description = "My awesome article description...",
Link = "https://example.org/article",
Author = "[email protected] (John Doe)",
Comments = "https://example.org/comments",
Guid = new Rss20Guid {
Value = "https://example.org/article-permalink", IsPermaLink = true,
},
Source = new Rss20Source {
Name = "Article source X", Url = "https://example.org/article-source-x",
},
Enclosures = new List <Rss20Enclosure> {
new Rss20Enclosure {
Url = "https://example.org/enclosure-video.mp4", Length = "3000", Type = "video/mp4",
},
},
},
},
},
};
var tryFormatResult = Rss20FeedFormatter.TryFormatRss20Feed(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);
}
}
private void ParseRss20Header(Rss20Feed rssFeed, string xml)
{
var xmlDoc = new XmlDocument();
xmlDoc.LoadXml(xml);
var titleNode = xmlDoc.DocumentElement.GetAttributeNode("/rss/channel/title");
rssFeed.Title = titleNode.InnerText;
var descriptionNode = xmlDoc.DocumentElement.GetAttributeNode("/rss/channel/description");
rssFeed.Description = descriptionNode == null ? string.Empty : descriptionNode.InnerText;
var linkNode = xmlDoc.DocumentElement.GetAttributeNode("/rss/channel/link");
rssFeed.Link = linkNode == null ? string.Empty : linkNode.InnerText;
var dateTimeNode = xmlDoc.DocumentElement.GetAttributeNode("//pubDate[1]");
if (dateTimeNode == null) //We have to have a date, so we'll use the date/time when we polled the RSS feed as the default.
{
rssFeed.LastUpdated = DateTime.UtcNow;
}
else
{
DateTime timeOut;
DateTime.TryParse(dateTimeNode.InnerText, out timeOut);
rssFeed.LastUpdated = timeOut.ToUniversalTime();
}
var generatorNode = xmlDoc.DocumentElement.GetAttributeNode("/rss/channel/generator");
rssFeed.Generator = generatorNode == null ? string.Empty : generatorNode.InnerText;
var languageNode = xmlDoc.DocumentElement.GetAttributeNode("/rss/channel/language");
rssFeed.Language = languageNode == null ? string.Empty : languageNode.InnerText;
}
private void ParseRss20Items(Rss20Feed rssFeed, string xml)
{
var document = XDocument.Parse(xml);
var feedItemNodes = document.Root.Element("channel").Elements("item");
foreach (var item in feedItemNodes)
{
rssFeed.Items.Add(ParseRss20SingleItem(item));
}
}
protected virtual void ParseRss20Header(Rss20Feed rssFeed, string xml)
{
var document = XDocument.Parse(xml);
var channel = document.Root.Element("channel");
rssFeed.Title = channel.Element("title").Value;
rssFeed.Description = channel.Element("description").Value;
var linkNode = channel.Element("link");
rssFeed.Link = linkNode == null ? string.Empty : linkNode.Value;
var dateTimeNode = (from dateSelector in channel.Elements("pubDate")
select dateSelector).FirstOrDefault();
if (dateTimeNode == null)
{
rssFeed.LastUpdated = DateTime.UtcNow;
}
else
{
DateTime timeOut;
DateTime.TryParse(dateTimeNode.Value, out timeOut);
rssFeed.LastUpdated = timeOut.ToUniversalTime();
}
var generatorNode = channel.Element("generator");
rssFeed.Generator = generatorNode == null ? string.Empty : generatorNode.Value;
var languageNode = channel.Element("language");
rssFeed.Language = languageNode == null ? string.Empty : languageNode.Value;
}
