public DreamMessage PostFeedEntry(XDoc body)
{
var published = body["published"].AsDate ?? DateTime.UtcNow;
var title = body["title"].AsText;
var summary = body["summary"].AsText;
var content = body["content"].AsText;
var feed = LoadFeed();
var feedUri = feed["_:link[@rel='self']/@href"].AsUri;
var link = feedUri.At(published.ToString("yyyy-MM-dd")).At(GetUriTitle(title));
var entry = new XAtomEntry(title, published, published);
entry.AddLink(link, XAtomBase.LinkRelation.Self, null, null, title);
entry.AddSummary(summary);
entry.AddContent(content);
feed.Add(entry);
SaveFeed(feed);
return DreamMessage.Ok(entry);
}
public Yield GetEntry(DreamContext context, DreamMessage request, Result<DreamMessage> response)
{
string id = context.GetParam("id");
XAtomEntry entry = null;
// get feed
XAtomFeed feed = _feed;
if(feed != null) {
lock(feed) {
entry = new XAtomEntry(feed[string.Format("entry[id='{0}']", Self.At(id).Uri)]);
}
} else {
throw new DreamBadRequestException("not initialized");
}
if(entry.IsEmpty) {
response.Return(DreamMessage.NotFound("entry not found"));
} else {
response.Return(DreamMessage.Ok(MimeType.ATOM, entry));
}
yield break;
}
internal Yield PutEntry(DreamContext context, DreamMessage request, Result<DreamMessage> response)
{
if(request.ToDocument().Name != "entry") {
throw new DreamBadRequestException("invalid format");
}
string id = context.GetParam("id");
// prepare entry
XAtomEntry entry = new XAtomEntry(request.ToDocument());
XUri link = Self.At(id);
entry.Id = link;
entry.AddLink(link, XAtomBase.LinkRelation.Edit, null, 0, null);
// update feed
XAtomFeed feed = _feed;
XAtomEntry oldEntry;
if(feed != null) {
lock(feed) {
oldEntry = new XAtomEntry(feed[string.Format("entry[id='{0}']", link)]);
if(!oldEntry.IsEmpty) {
oldEntry.Replace(entry);
}
}
} else {
throw new DreamBadRequestException("not initialized");
}
if(oldEntry.IsEmpty) {
response.Return(DreamMessage.NotFound("entry not found"));
} else {
response.Return(DreamMessage.Ok(MimeType.ATOM, entry));
}
yield break;
}
internal Yield PostEntries(DreamContext context, DreamMessage request, Result<DreamMessage> response)
{
if(request.ToDocument().Name != "entry") {
throw new DreamBadRequestException("invalid format");
}
// prepare entry
XAtomEntry entry = new XAtomEntry(request.ToDocument());
int number = System.Threading.Interlocked.Increment(ref _counter);
XUri link = Self.At(number.ToString());
entry.Id = link;
entry.AddLink(link, XAtomBase.LinkRelation.Edit, null, 0, null);
// update feed
XAtomFeed feed = _feed;
if(feed != null) {
lock(feed) {
feed.Add(entry);
}
} else {
throw new DreamBadRequestException("not initialized");
}
// schedule entry deletion
double seconds = context.GetParam<double>("ttl", _defaultTTL);
if(seconds > 0) {
TimerFactory.New(TimeSpan.FromSeconds(seconds), AutoDeletePost, number, TaskEnv.Clone());
}
// return updated entry
response.Return(DreamMessage.Created(link, entry));
yield break;
}
