internal static AtomFeed Parse(XPathNavigator navigator)
{
AtomFeed feed = new AtomFeed();
XPathNavigator nav = navigator.Clone();
XPathNodeIterator iter = nav.SelectChildren(XPathNodeType.All);
do
{
string name = iter.Current.Name.ToLower();
int idx = name.IndexOf(":");
if (idx != -1)
{
name = name.Split(new char[] { ':' }, 2)[0];
}
switch (name)
{
case "feed":
{
try
{
XPathNavigatorReader reader = new XPathNavigatorReader(nav);
string baseUri = reader.GetAttribute("base", XmlNamespaces.Xml);
if (baseUri != null && baseUri.Length > 0)
{
feed.XmlBase = new Uri(baseUri);
}
}
catch {}
try
{
feed.Uri = FindAlternateUri(iter.Current);
}
catch {}
try
{
feed.XmlLang = Utils.Utils.ParseLanguage(iter.Current.XmlLang);
}
catch {}
XPathNodeIterator attrIterator = nav.Select("@*");
while (attrIterator.MoveNext())
{
if (attrIterator.Current.Name.ToLower() == "version")
{
if (attrIterator.Current.Value != DefaultValues.AtomVersion)
{
string msg = string.Format("Atom {0} version is not supported!", attrIterator.Current.Value);
throw new InvalidOperationException(msg);
}
}
}
break;
}
case "title":
AtomContentConstruct content = AtomContentConstruct.Parse(iter.Current);
feed.Title = content;
break;
case "link":
feed.Links.Add(AtomLink.Parse(iter.Current));
break;
case "author":
feed.Author = AtomPersonConstruct.Parse(iter.Current);
break;
case "contributor":
feed.Contributors.Add(AtomPersonConstruct.Parse(iter.Current));
break;
case "tagline":
feed.Tagline = AtomContentConstruct.Parse(iter.Current);
break;
case "id":
feed.Id = new Uri(iter.Current.Value);
break;
case "copyright":
feed.Copyright = AtomContentConstruct.Parse(iter.Current);
break;
case "info":
feed.Info = AtomContentConstruct.Parse(iter.Current);
break;
case "modified":
feed.Modified = AtomDateConstruct.Parse(iter.Current);
break;
case "entry":
feed.Entries.Add(AtomEntry.Parse(iter.Current));
break;
case "dc":
feed.AdditionalElements.Add(DcElement.Parse(iter.Current));
break;
}
} while(iter.MoveNext());
return(feed);
}
internal static AtomEntry Parse(XPathNavigator navigator)
{
AtomEntry entry = new AtomEntry();
XPathNavigator nav = navigator.Clone();
XPathNodeIterator iter = nav.SelectDescendants(XPathNodeType.All, true);
while (iter.MoveNext())
{
string name = iter.Current.Name.ToLower();
int idx = name.IndexOf(":");
if (idx != -1)
{
name = name.Split(new char[] { ':' }, 2)[0];
}
switch (name)
{
case "entry":
try
{
entry.Uri = FindAlternateUri(iter.Current);
entry.XmlLang = Utils.Utils.ParseLanguage(iter.Current.XmlLang);
}
catch {}
break;
case "title":
AtomContentConstruct content = AtomContentConstruct.Parse(iter.Current);
entry.Title = content;
break;
case "link":
entry.Links.Add(AtomLink.Parse(iter.Current));
break;
case "author":
entry.Author = AtomPersonConstruct.Parse(iter.Current);
break;
case "contributor":
entry.Contributors.Add(AtomPersonConstruct.Parse(iter.Current));
break;
case "id":
entry.Id = new Uri(iter.Current.Value);
break;
case "modified":
entry.Modified = AtomDateConstruct.Parse(iter.Current);
break;
case "issued":
entry.Issued = AtomDateConstruct.Parse(iter.Current);
break;
case "created":
entry.Created = AtomDateConstruct.Parse(iter.Current);
break;
case "summary":
entry.Summary = AtomContentConstruct.Parse(iter.Current);
break;
case "content":
entry.Contents.Add(AtomContent.Parse(iter.Current));
break;
case "dc":
entry.AdditionalElements.Add(DcElement.Parse(iter.Current));
break;
}
}
return(entry);
}
internal static AtomContentConstruct Parse(XPathNavigator navigator)
{
AtomContentConstruct contentElement = new AtomContentConstruct();
string content = String.Empty;
XPathNavigator nav = navigator.Clone();
// select the element itself
XPathNodeIterator iter = nav.SelectDescendants(XPathNodeType.Element, true);
while (iter.MoveNext())
{
string name = iter.Current.Name.ToLower();
int idx = name.IndexOf(":");
if (idx != -1)
{
name = name.Split(new char[] { ':' }, 2)[1];
}
switch (name)
{
case "title":
case "copyright":
case "info":
case "tagline":
case "summary":
case "content":
try
{
contentElement.XmlLang = Utils.Utils.ParseLanguage(iter.Current.XmlLang);
}
catch {}
contentElement.LocalName = name;
XPathNavigatorReader reader = new XPathNavigatorReader(iter.Current);
reader.Read();
content = reader.ReadInnerXml();
break;
}
}
// select the attributes
iter = nav.Select("@*");
do
{
switch (iter.Current.Name.ToLower())
{
case "type":
contentElement.Type = Utils.Utils.ParseMediaType(
iter.Current.Value);
break;
case "mode":
{
switch (iter.Current.Value.ToLower())
{
case "escaped":
contentElement.Mode = Mode.Escaped;
break;
case "base64":
contentElement.Mode = Mode.Base64;
break;
}
break;
}
}
} while(iter.MoveNext());
switch (contentElement.Mode)
{
case Mode.Escaped:
content = Utils.Utils.Unescape(content);
break;
case Mode.Base64:
content = Encoding.Unicode.GetString(
Utils.Utils.Base64Decode(content));
break;
}
contentElement.Content = content;
return(contentElement);
}