private AtomRoot GetAtomCore(string category, int maxDayCount, int maxEntryCount)
{
if (RedirectToFeedBurnerIfNeeded(category) == true)
{
return(null);
}
EntryCollection entries = null;
//We only build the entries if blogcore doesn't exist and we'll need them later...
if (dataService.GetLastEntryUpdate() == DateTime.MinValue)
{
entries = BuildEntries(category, maxDayCount, maxEntryCount);
}
//Try to get out as soon as possible with as little CPU as possible
if (inASMX)
{
if (SiteUtilities.GetStatusNotModified(SiteUtilities.GetLatestModifedEntryDateTime(dataService, entries)))
{
return(null);
}
}
if (inASMX)
{
string referrer = Context.Request.UrlReferrer != null?Context.Request.UrlReferrer.AbsoluteUri:"";
if (ReferralBlackList.IsBlockedReferrer(referrer))
{
if (siteConfig.EnableReferralUrlBlackList404s)
{
return(null);
}
}
else
{
loggingService.AddReferral(
new LogDataItem(
Context.Request.RawUrl,
referrer,
Context.Request.UserAgent,
Context.Request.UserHostName));
}
}
//not-modified didn't work, do we have this in cache?
string CacheKey = "Atom:" + category + ":" + maxDayCount.ToString() + ":" + maxEntryCount.ToString();
AtomRoot atomFeed = cache[CacheKey] as AtomRoot;
if (atomFeed == null) //we'll have to build it...
{
atomFeed = new AtomRoot();
//However, if we made it this far, the not-modified check didn't work, and we may not have entries...
if (entries == null)
{
entries = BuildEntries(category, maxDayCount, maxEntryCount);
}
if (siteConfig.RssLanguage != null && siteConfig.RssLanguage.Length > 0)
{
atomFeed.Lang = siteConfig.RssLanguage;
}
else //original default behavior of dasBlog
{
atomFeed.Lang = "en-us";
}
if (category == null)
{
atomFeed.Title = siteConfig.Title;
}
else
{
atomFeed.Title = siteConfig.Title + " - " + category;
}
atomFeed.Tagline = siteConfig.Subtitle;
atomFeed.Links.Add(new AtomLink(SiteUtilities.GetBaseUrl(siteConfig)));
atomFeed.Links.Add(new AtomLink(SiteUtilities.GetAtomUrl(siteConfig), "self", null));
atomFeed.Author = new AtomParticipant();
// shouldn't we use the display name of an owner??
atomFeed.Author.Name = siteConfig.Copyright;
atomFeed.Generator = new AtomGenerator();
atomFeed.Generator.Version = GetType().Assembly.GetName().Version.ToString();
atomFeed.Icon = "favicon.ico";
atomFeed.Id = SiteUtilities.GetBaseUrl(siteConfig);
atomFeed.Logo = null;
if (siteConfig.ChannelImageUrl != null && siteConfig.ChannelImageUrl.Trim().Length > 0)
{
if (siteConfig.ChannelImageUrl.StartsWith("http"))
{
atomFeed.Logo = siteConfig.ChannelImageUrl;
}
else
{
atomFeed.Logo = SiteUtilities.RelativeToRoot(siteConfig, siteConfig.ChannelImageUrl);
}
}
DateTime feedModified = DateTime.MinValue;
foreach (Entry entry in entries)
{
if (entry.IsPublic == false || entry.Syndicated == false)
{
continue;
}
string entryLink = SiteUtilities.GetPermaLinkUrl(siteConfig, (ITitledEntry)entry);
string entryGuid = SiteUtilities.GetPermaLinkUrl(siteConfig, entry.EntryId);
AtomEntry atomEntry = new AtomEntry(entry.Title, new AtomLink(entryLink), entryGuid, entry.CreatedUtc, entry.ModifiedUtc);
//atomEntry.Created = entry.CreatedUtc; //not needed in 1.0
atomEntry.Summary = PreprocessItemContent(entry.EntryId, entry.Description);
// for multiuser blogs we want to be able to
// show the author per entry
User user = SiteSecurity.GetUser(entry.Author);
if (user != null)
{
// only the displayname
atomEntry.Author = new AtomParticipant()
{
Name = user.DisplayName
};
}
if (entry.Categories != null && entry.Categories.Length > 0)
{
if (atomEntry.Categories == null)
{
atomEntry.Categories = new AtomCategoryCollection();
}
string[] cats = entry.Categories.Split(';');
foreach (string c in cats)
{
AtomCategory cat = new AtomCategory();
//paulb: scheme should be a valid IRI, acsording to the spec
// (http://www.atomenabled.org/developers/syndication/atom-format-spec.php#element.category)
// so I changed this to the Category view for specified category. Now the feed validator likes us again ;-)
cat.Scheme = SiteUtilities.GetCategoryViewUrl(siteConfig, c); // "hierarchical";
// sub categories should be delimited using the path delimiter
string cleanCat = c.Replace('|', '/');
//Grab the first category, atom doesn't let us do otherwise!
cat.Term = HttpUtility.HtmlEncode(cleanCat);
cat.Label = HttpUtility.HtmlEncode(cleanCat);
atomEntry.Categories.Add(cat);
}
}
// only if we don't have a summary we emit the content
if (siteConfig.AlwaysIncludeContentInRSS || entry.Description == null || entry.Description.Length == 0)
{
atomEntry.Summary = null; // remove empty summary tag
try
{
AtomContent atomContent = new AtomContent();
atomContent.Type = "xhtml";
XmlDocument xmlDoc2 = new XmlDocument();
xmlDoc2.LoadXml(ContentFormatter.FormatContentAsXHTML(PreprocessItemContent(entry.EntryId, entry.Content), "div"));
atomContent.anyElements = new XmlElement[] { xmlDoc2.DocumentElement };
// set the langauge for the content item
atomContent.Lang = entry.Language;
atomEntry.Content = atomContent;
}
catch (Exception) //XHTML isn't happening today
{
//Try again as HTML
AtomContent atomContent = new AtomContent();
atomContent.Type = "html";
atomContent.TextContent = ContentFormatter.FormatContentAsHTML(PreprocessItemContent(entry.EntryId, entry.Content));
// set the langauge for the content item
atomContent.Lang = entry.Language;
atomEntry.Content = atomContent;
}
}
if (atomEntry.ModifiedUtc > feedModified)
{
feedModified = atomEntry.ModifiedUtc;
}
atomFeed.Entries.Add(atomEntry);
}
// set feed modified date to the most recent entry date
atomFeed.ModifiedUtc = feedModified;
cache.Insert(CacheKey, atomFeed, DateTime.Now.AddMinutes(5));
}
return(atomFeed);
}
