func (fm FeedManager) updateFeed(f content.Feed) {
f.Update()
if f.HasErr() {
fm.logger.Printf("Error updating feed '%s' database record: %v\n", f, f.Err())
} else {
fm.processFeedUpdateMonitors(f)
}
}
func (h Hubbub) subscription(s content.Subscription, f content.Feed, subscribe bool) {
var err error
fdata := f.Data()
u := callbackURL(h.config, h.pattern, fdata.Id)
body := url.Values{}
body.Set("hub.callback", u)
if subscribe {
h.logger.Infoln("Subscribing to hubbub for " + f.String() + " with url " + u)
body.Set("hub.mode", "subscribe")
} else {
h.logger.Infoln("Unsubscribing to hubbub for " + f.String() + " with url " + u)
body.Set("hub.mode", "unsubscribe")
}
body.Set("hub.topic", fdata.Link)
buf := util.BufferPool.GetBuffer()
defer util.BufferPool.Put(buf)
buf.WriteString(body.Encode())
req, _ := http.NewRequest("POST", s.Data().Link, buf)
req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
req.Header.Add("From", h.config.Hubbub.From)
resp, err := h.client.Do(req)
if err != nil {
err = SubscriptionError{error: err, Subscription: s}
} else if resp.StatusCode != 202 {
err = SubscriptionError{error: errors.New("Expected response status 202, got " + resp.Status), Subscription: s}
}
if err == nil {
if subscribe {
h.subscribe <- s
} else {
h.unsubscribe <- s
}
} else {
fdata.SubscribeError = err.Error()
h.logger.Printf("Error subscribing to hub feed '%s': %s\n", f, err)
f.Data(fdata)
f.Update()
if f.HasErr() {
h.logger.Printf("Error updating feed database record for '%s': %s\n", f, f.Err())
}
h.removeFeed <- f
}
}