public Article(Article a)
: this()
{
this.Location = a.Location;
this.PublishDate = a.PublishDate;
this.Title = a.Title;
this.Unread = a.Unread;
this.ParentFeed = a.ParentFeed;
this.Id = a.Id;
}
private void MarkArticleRead(Article art)
{
art.Unread = false;
Data.Article dataArticle = new Data.Article(art);
dataArticle.Save();
}
public void UpdateFromUri(Boolean deriveAttributes = false, int retentionDays = -1)
{
//WebClient client = new WebClient();
//using (SyndicationFeedXmlReader x = new SyndicationFeedXmlReader(client.OpenRead(Location)))
HttpWebRequest httpWebRequest = (HttpWebRequest)HttpWebRequest.Create(Location.ToString());
httpWebRequest.UserAgent = "Googlebot/1.0 ([email protected] http://googlebot.com/)";
// Use The Default Proxy
httpWebRequest.Proxy = System.Net.WebRequest.DefaultWebProxy;
// Use The Thread's Credentials (Logged In User's Credentials)
if (httpWebRequest.Proxy != null)
httpWebRequest.Proxy.Credentials = CredentialCache.DefaultCredentials;
using (HttpWebResponse httpWebResponse = (HttpWebResponse) httpWebRequest.GetResponse())
{
using (Stream responseStream = httpWebResponse.GetResponseStream())
{
using (XmlReader x = XmlReader.Create(responseStream))
{
SyndicationFeed feed = SyndicationFeed.Load(x);
x.Close();
if (deriveAttributes)
{
Title = feed.Title.Text;
LastUpdate = feed.LastUpdatedTime.DateTime;
Host = Location.Host;
}
// Title is not set
if (Title.StartsWith("http"))
{
Title = feed.Title.Text;
}
//Date unchanged
if(LastUpdate.Equals(feed.LastUpdatedTime.DateTime))
{
LastUpdate = DateTime.Now;
}
else
{
LastUpdate = feed.LastUpdatedTime.DateTime;
}
foreach (SyndicationItem item in feed.Items)
{
Article art = new Article();
art.ParentFeed = this;
art.Location = item.Links[0].Uri;
art.PublishDate = item.PublishDate.ToLocalTime().DateTime;
art.Title = item.Title.Text;
art.Unread = true;
// Some dates don't parse correctly (connect.microsoft.com for instance)
if (art.PublishDate.Date.Equals(new DateTime(1, 1, 1)))
{
art.PublishDate = item.LastUpdatedTime.ToLocalTime().DateTime;
if (art.PublishDate.Date.Equals(new DateTime(1, 1, 1)))
{
art.PublishDate = LastUpdate;
}
}
// load article from feed only when within retention
if (retentionDays > 0 && art.PublishDate >= DateTime.Now.AddDays(-1 * retentionDays))
Articles.Add(art);
// Dates older than 180 days are likely parsing errors too
// I can't evaluate the retention policy after setting
// the date to the feed's last update, because some
// sites "resurrect" older posts and put them in the feed.
if (art.PublishDate < DateTime.Now.AddDays(-180))
{
art.PublishDate = item.LastUpdatedTime.ToLocalTime().DateTime;
art.PublishDate = LastUpdate;
}
}
} // using XmlReader
} // using Stream
} // using HttpWebResponse
}
