public FeedItem(FeedItem feedItem)
{
this.authors = feedItem.authors;
this.categories = feedItem.categories;
this.commentsUri = feedItem.commentsUri;
this.content = feedItem.content;
this.contentType = feedItem.contentType;
this.contributors = feedItem.contributors;
this.copyright = feedItem.copyright;
this.enclosures = feedItem.enclosures;
this.guid = feedItem.guid;
this.moduleItems = feedItem.moduleItems;
this.published = feedItem.published;
this.source = feedItem.source;
this.summary = feedItem.summary;
this.summaryType = feedItem.summaryType;
this.title = feedItem.title;
this.updated = feedItem.updated;
this.webUris = feedItem.webUris;
}
private void readEntry(XmlReader subReader)
{
subReader.MoveToContent();
FeedItem feedItem = new FeedItem();
while (subReader.Read())
{
if (subReader.NodeType == XmlNodeType.Element)
{
switch (subReader.Name)
{
case "title":
subReader.MoveToContent();
feedItem.Title = subReader.ReadString();
break;
case "id":
subReader.MoveToContent();
FeedGuid guid = new FeedGuid(subReader.ReadString());
if(!Uri.IsWellFormedUriString(guid.Id, UriKind.Absolute))
guid.PermaLink = false;
feedItem.Guid = guid;
break;
case "content":
bool contentRead = false;
while (subReader.MoveToNextAttribute())
{
if (subReader.Name == "type")
{
if (subReader.Value == "xhtml")
{
subReader.MoveToContent();
feedItem.Content = subReader.ReadInnerXml();
feedItem.ContentType = TextType.Xhtml;
contentRead = true;
}
else if (subReader.Value == "html")
{
feedItem.ContentType = TextType.Html;
}
}
}
if (!contentRead)
{
subReader.MoveToContent();
feedItem.Content = subReader.ReadString();
}
break;
case "summary":
bool summaryRead = false;
while (subReader.MoveToNextAttribute())
{
if (subReader.Name == "type")
{
if (subReader.Value == "xhtml")
{
subReader.MoveToContent();
feedItem.Summary = subReader.ReadInnerXml();
feedItem.SummaryType = TextType.Xhtml;
summaryRead = true;
}
else if (subReader.Value == "html")
{
feedItem.SummaryType = TextType.Html;
}
}
}
if (!summaryRead)
{
subReader.MoveToContent();
feedItem.Summary = subReader.ReadString();
}
break;
case "modified":
case "updated":
subReader.MoveToContent();
feedItem.Updated = DTHelper.ParseDateTime(subReader.ReadString());
break;
case "published":
case "created":
subReader.MoveToContent();
feedItem.Published = DTHelper.ParseDateTime(subReader.ReadString());
break;
case "author":
subReader.MoveToContent();
feedItem.Authors.Add(readPerson(subReader.ReadSubtree()));
break;
case "contributor":
subReader.MoveToContent();
feedItem.Contributors.Add(readPerson(subReader.ReadSubtree()));
break;
case "rights":
subReader.MoveToContent();
feedItem.Copyright = subReader.ReadString();
break;
case "category":
Category category = new Category();
while (subReader.MoveToNextAttribute())
{
switch (subReader.Name)
{
case "term": category.Term = subReader.Value; break;
case "scheme": category.Scheme = subReader.Value; break;
case "label": category.Label = subReader.Value; break;
}
}
feedItem.Categories.Add(category);
break;
case "link":
Link link = new Link();
while (subReader.MoveToNextAttribute())
{
switch (subReader.Name)
{
case "href": link.href = subReader.Value; break;
case "hreflang": link.hreflang = subReader.Value; break;
case "length": link.length = subReader.Value; break;
case "rel": link.rel = subReader.Value; break;
case "title": link.title = subReader.Value; break;
case "type": link.type = subReader.Value; break;
}
}
//In case someone formats a link as <link>href</link>
//we can tolerate that as well.
if (String.IsNullOrEmpty(link.href))
{
subReader.MoveToContent();
link.href = subReader.ReadString();
}
normalizeFeedItemLink(feedItem, link);
break;
default:
if (readModules && subReader.Prefix != String.Empty)
readModuleItem(subReader, feedItem);
break;
}
}
}
Feed.Items.Add(feedItem);
}
/// <summary>link elements -> normal structure on FeedItem</summary>
private static void normalizeFeedItemLink(FeedItem feedItem, Link link)
{
switch (link.rel)
{
case "related": break;
case "via":
Source source = new Source();
source.Uri = link.href;
source.Title = link.title;
feedItem.Source = source;
break;
case "enclosure":
int length = 0;
Enclosure enclosure = new Enclosure();
enclosure.Uri = link.href;
enclosure.Title = link.title;
enclosure.Type = link.type;
if (Int32.TryParse(link.length, out length))
enclosure.Length = length;
feedItem.Enclosures.Add(enclosure);
break;
case "self": break; // No link on itself (?)
case "":
case "alternate":
feedItem.WebUris.Add(new FeedUri(link.href, link.title));
break;
}
}
private void readItem(XmlReader subReader)
{
subReader.MoveToContent();
m_CurrentFeedItem = new FeedItem();
while (subReader.Read())
{
if (subReader.NodeType == XmlNodeType.Element)
{
m_CurrentNode = subReader.Name;
switch (m_CurrentNode)
{
case "title":
subReader.MoveToContent();
m_CurrentFeedItem.Title = subReader.ReadString();
break;
case "description":
subReader.MoveToContent();
try
{
// One feed had a hex character / & that couldnt be read with XmlReader.
m_CurrentFeedItem.Content = subReader.ReadString();
}
catch(Exception ex)
{
System.Diagnostics.Debug.WriteLine("Error reading the description of a feed item. Ignored usually: "+ex.Message);
}
break;
case "link":
subReader.MoveToContent();
FeedUri uri = new FeedUri(subReader.ReadString());
m_CurrentFeedItem.WebUris.Add(uri);
break;
case "author":
subReader.MoveToContent();
m_CurrentFeedItem.Authors.Add(readPerson(subReader.ReadString()));
break;
case "category":
Category category = new Category();
while (subReader.MoveToNextAttribute())
{
if (subReader.Name == "domain")
category.Scheme = subReader.Value;
}
subReader.MoveToContent();
category.Label = category.Term = subReader.ReadString();
m_CurrentFeedItem.Categories.Add(category);
break;
case "comments":
subReader.MoveToContent();
m_CurrentFeedItem.CommentsUri = subReader.ReadString();
break;
case "enclosure":
Enclosure enclosure = new Enclosure();
while (subReader.MoveToNextAttribute())
{
switch (subReader.Name)
{
case "url": enclosure.Uri = subReader.Value; break;
case "length":
int length = 0;
if (Int32.TryParse(subReader.Value, out length))
enclosure.Length = length;
break;
case "type": enclosure.Type = subReader.Value; break;
}
}
m_CurrentFeedItem.Enclosures.Add(enclosure);
break;
case "guid":
FeedGuid guid = new FeedGuid();
if (subReader.MoveToFirstAttribute())
{
if (subReader.Name == "isPermaLink" && subReader.Value == "false")
guid.PermaLink = false;
}
subReader.MoveToContent();
guid.Id = subReader.ReadString();
m_CurrentFeedItem.Guid = guid;
break;
case "pubDate":
subReader.MoveToContent();
m_CurrentFeedItem.Published = DTHelper.ParseDateTime(subReader.ReadString());
break;
case "source":
Source source = new Source();
if (subReader.MoveToFirstAttribute())
{
if (subReader.Name == "url")
source.Uri = subReader.Value;
}
subReader.MoveToContent();
source.Title = subReader.ReadString();
m_CurrentFeedItem.Source = source;
break;
default:
if (readModules && subReader.Prefix != String.Empty)
readModuleItem(subReader, m_CurrentFeedItem);
break;
}
}
}
Feed.Items.Add(m_CurrentFeedItem);
}
private new void readModuleItem(XmlReader subReader, FeedItem feedItem)
{
IModuleItem moduleItem = feedItem.GetModuleItem(subReader.Prefix);
if (moduleItem != null)
{
moduleItem.Parse(subReader.ReadSubtree());
}
else
{
IModule module = Feed.GetModule(subReader.Prefix);
if (module != null)
{
IModuleItem mi = module.CreateModuleItem();
if (mi != null)
{
mi.Parse(subReader.ReadSubtree());
feedItem.ModuleItems.Add(subReader.Prefix, mi);
}
}
}
}
private void readItem(XmlReader subReader)
{
subReader.MoveToContent();
FeedItem feedItem = new FeedItem();
while (subReader.Read())
{
if (subReader.NodeType == XmlNodeType.Element)
{
switch (subReader.Name)
{
case "title":
subReader.MoveToContent();
feedItem.Title = subReader.ReadString();
break;
case "link":
subReader.MoveToContent();
FeedUri uri = new FeedUri(subReader.ReadString());
feedItem.WebUris.Add(uri);
break;
case "description":
subReader.MoveToContent();
try
{
// One feed had a hex character that couldnt be read with XmlReader.
// TODO: Build a function TryReadString(XmlReader) for all string elements?...
feedItem.Content = subReader.ReadString();
}
catch { }
break;
default:
if (readModules && subReader.Prefix != String.Empty)
readModuleItem(subReader, feedItem);
break;
}
}
}
Feed.Items.Add(feedItem);
}
