package server import ( "heckel.io/ntfy/log" "strings" ) func (s *Server) execManager() { // WARNING: Make sure to only selectively lock with the mutex, and be aware that this // there is no mutex for the entire function. // Prune all the things s.pruneVisitors() s.pruneTokens() s.pruneAttachments() s.pruneMessages() // Message count per topic var messagesCached int messageCounts, err := s.messageCache.MessageCounts() if err != nil { log.Tag(tagManager).Err(err).Warn("Cannot get message counts") messageCounts = make(map[string]int) // Empty, so we can continue } for _, count := range messageCounts { messagesCached += count } // Remove subscriptions without subscribers var emptyTopics, subscribers int log. Tag(tagManager). Timing(func() { s.mu.Lock() defer s.mu.Unlock() for _, t := range s.topics { subs := t.SubscribersCount() log.Tag(tagManager).With(t).Trace("- topic %s: %d subscribers", t.ID, subs) msgs, exists := messageCounts[t.ID] if t.Stale() && (!exists || msgs == 0) { log.Tag(tagManager).With(t).Trace("Deleting empty topic %s", t.ID) emptyTopics++ delete(s.topics, t.ID) continue } subscribers += subs } }). Debug("Removed %d empty topic(s)", emptyTopics) // Mail stats var receivedMailTotal, receivedMailSuccess, receivedMailFailure int64 if s.smtpServerBackend != nil { receivedMailTotal, receivedMailSuccess, receivedMailFailure = s.smtpServerBackend.Counts() } var sentMailTotal, sentMailSuccess, sentMailFailure int64 if s.smtpSender != nil { sentMailTotal, sentMailSuccess, sentMailFailure = s.smtpSender.Counts() } // Print stats s.mu.Lock() messagesCount, topicsCount, visitorsCount := s.messages, len(s.topics), len(s.visitors) s.mu.Unlock() log. Tag(tagManager). Fields(log.Context{ "messages_published": messagesCount, "messages_cached": messagesCached, "topics_active": topicsCount, "subscribers": subscribers, "visitors": visitorsCount, "emails_received": receivedMailTotal, "emails_received_success": receivedMailSuccess, "emails_received_failure": receivedMailFailure, "emails_sent": sentMailTotal, "emails_sent_success": sentMailSuccess, "emails_sent_failure": sentMailFailure, }). Info("Server stats") } func (s *Server) pruneVisitors() { staleVisitors := 0 log. Tag(tagManager). Timing(func() { s.mu.Lock() defer s.mu.Unlock() for ip, v := range s.visitors { if v.Stale() { log.Tag(tagManager).With(v).Trace("Deleting stale visitor") delete(s.visitors, ip) staleVisitors++ } } }). Field("stale_visitors", staleVisitors). Debug("Deleted %d stale visitor(s)", staleVisitors) } func (s *Server) pruneTokens() { if s.userManager != nil { log. Tag(tagManager). Timing(func() { if err := s.userManager.RemoveExpiredTokens(); err != nil { log.Tag(tagManager).Err(err).Warn("Error expiring user tokens") } if err := s.userManager.RemoveDeletedUsers(); err != nil { log.Tag(tagManager).Err(err).Warn("Error deleting soft-deleted users") } }). Debug("Removed expired tokens and users") } } func (s *Server) pruneAttachments() { if s.fileCache == nil { return } log. Tag(tagManager). Timing(func() { ids, err := s.messageCache.AttachmentsExpired() if err != nil { log.Tag(tagManager).Err(err).Warn("Error retrieving expired attachments") } else if len(ids) > 0 { if log.Tag(tagManager).IsDebug() { log.Tag(tagManager).Debug("Deleting attachments %s", strings.Join(ids, ", ")) } if err := s.fileCache.Remove(ids...); err != nil { log.Tag(tagManager).Err(err).Warn("Error deleting attachments") } if err := s.messageCache.MarkAttachmentsDeleted(ids...); err != nil { log.Tag(tagManager).Err(err).Warn("Error marking attachments deleted") } } else { log.Tag(tagManager).Debug("No expired attachments to delete") } }). Debug("Deleted expired attachments") } func (s *Server) pruneMessages() { log. Tag(tagManager). Timing(func() { expiredMessageIDs, err := s.messageCache.MessagesExpired() if err != nil { log.Tag(tagManager).Err(err).Warn("Error retrieving expired messages") } else if len(expiredMessageIDs) > 0 { if s.fileCache != nil { if err := s.fileCache.Remove(expiredMessageIDs...); err != nil { log.Tag(tagManager).Err(err).Warn("Error deleting attachments for expired messages") } } if err := s.messageCache.DeleteMessages(expiredMessageIDs...); err != nil { log.Tag(tagManager).Err(err).Warn("Error marking attachments deleted") } } else { log.Tag(tagManager).Debug("No expired messages to delete") } }). Debug("Pruned messages") }