public static Feed Read(string uri, FeedReaderSettings settings=null)
{
Stream stream = null;
if (settings == null)
settings = new FeedReaderSettings();
try
{
HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(uri);
if (settings.HttpTimeout.HasValue)
req.Timeout = settings.HttpTimeout.Value;
// Some firewalls allow browser clients only. So let us be a browser ;)
if(!String.IsNullOrEmpty(settings.HttpUserAgentString))
req.UserAgent = settings.HttpUserAgentString;
// Add Accept string
if (!String.IsNullOrEmpty(settings.HttpAcceptString))
req.Accept = settings.HttpAcceptString;
// Add custom headers
foreach (KeyValuePair<HttpRequestHeader, string> kvp in settings.HttpHeaders)
{
req.Headers.Add(kvp.Key, kvp.Value);
}
if (settings.FeedCredentials != null)
req.Credentials = settings.FeedCredentials;
WebResponse resp = req.GetResponse();
stream = resp.GetResponseStream();
return Read(stream, uri, settings);
}
catch (WebException ex)
{
errors.Add(ex);
}
return null;
}
private bool readFeed(string uri)
{
FeedReaderSettings settings = new FeedReaderSettings();
settings.ReadModules = true;
Feed feed = FeedReader.Read(uri, settings);
if (FeedReader.HasErrors)
{
foreach (Exception ex in FeedReader.GetErrors())
{
MessageBox.Show(ex.Message);
}
}
if (feed != null)
{
showFeedInfo(feed);
return true;
}
return false;
}
public static Feed Read(Uri uri, FeedReaderSettings settings)
{
return Read(uri.ToString(), settings);
}
/// <summary>
/// If you have an open stream, uses it. The uri is not used except for modifying the feed
/// </summary>
/// <param name="stream"></param>
/// <param name="uri"></param>
/// <param name="settings"></param>
/// <returns></returns>
public static Feed Read(Stream stream, String uri, FeedReaderSettings settings)
{
XmlReader xmlReader = XmlReader.Create(stream, new XmlReaderSettings() { DtdProcessing = DtdProcessing.Ignore, XmlResolver = new XmlCachingResolver(true) });
Parser parser = null;
try{
Feed feed = initialize(xmlReader);
if (feed != null)
{
xmlReader.MoveToContent();
switch (feed.Version)
{
case FeedVersion.Atom03:
case FeedVersion.Atom10:
parser = new AtomParser(xmlReader.ReadSubtree(), feed);
parser.ReadModules = settings.ReadModules;
parser.Parse();
break;
case FeedVersion.RSS090:
case FeedVersion.RSS10:
parser = new RssOldParser(xmlReader.ReadSubtree(), feed);
parser.ReadModules = settings.ReadModules;
parser.Parse();
break;
case FeedVersion.RSS091:
case FeedVersion.RSS092:
case FeedVersion.RSS20:
XmlReader subReader20 = xmlReader.ReadSubtree();
while (subReader20.Read())
if (subReader20.NodeType == XmlNodeType.Element && subReader20.Name == "channel")
break;
parser = new RssParser(subReader20.ReadSubtree(), feed);
parser.ReadModules = settings.ReadModules;
parser.Parse();
break;
}
if (feed.XmlUri == null)
feed.XmlUri = new FeedUri(uri);
if (feed.WebUri == null)
feed.WebUri = new FeedUri(String.Empty);
}
return feed;
}
catch (Exception ex)
{
errors.Add(ex);
string debugExceptionMsg = string.Empty;
if (null != parser && !String.IsNullOrEmpty(parser.CurrentNodeBeingParsed))
debugExceptionMsg += "Node being parsed was: " + parser.CurrentNodeBeingParsed+" ";
if (null != parser && null != parser.CurrentFeedItemBeingParsed)
debugExceptionMsg += "Most recent item: " + parser.CurrentFeedItemBeingParsed.ToString() + " ";
if(!String.IsNullOrEmpty(debugExceptionMsg))
errors.Add(new Exception(debugExceptionMsg));
}
finally
{
if (xmlReader != null)
xmlReader.Close();
if (stream != null)
stream.Close();
}
return null;
}