Method replyGetInfo

server/topic.go:631–686

replyGetInfo is a response to a get.info request on a topic, sent to just the session as a {meta} packet

(sess *Session, id string, created bool)

// replyGetInfo is a response to a get.info request on a topic, sent to just the session as a {meta} packet
func (t *Topic) replyGetInfo(sess *Session, id string, created bool) error {
	now := time.Now().UTC().Round(time.Millisecond)

	pud, full := t.perUser[sess.uid]

	info := &MsgTopicInfo{
		CreatedAt: &t.created,
		UpdatedAt: &t.updated}

	if t.public != nil {
		info.Public = t.public
	} else if full {
		// p2p topic
		info.Public = pud.public
	}

	// Request may come from a subscriber or a stranger. Give a stranger a lot less info than a subscriber
	if full {
		if pud.modeGiven&pud.modeWant&types.ModeShare != 0 {
			info.DefaultAcs = &MsgDefaultAcsMode{
				Auth: t.accessAuth.String(),
				Anon: t.accessAnon.String()}
		}

		info.Acs = &MsgAccessMode{
			Want:  pud.modeWant.String(),
			Given: pud.modeGiven.String()}

		info.Private = pud.private

		if !t.lastMessage.IsZero() {
			info.LastMessage = &t.lastMessage
		}

		if when, ok := pud.lastSeenTag[sess.tag]; ok {
			info.LastSeenTag = &when
		}

		if len(pud.lastSeenTag) > 0 {
			tag, when := mostRecent(pud.lastSeenTag)
			if !when.IsZero() {
				info.LastSeen = &MsgLastSeenInfo{When: when, Tag: tag}
			}
		}

		// When a topic is first created, its name may change. Report the new name
		if created {
			info.Name = t.name
		}
	}

	simpleByteSender(sess.send, &ServerComMessage{
		Meta: &MsgServerMeta{Id: id, Topic: t.original, Info: info, Timestamp: &now}})

	return nil
}

// replySetInfo updates topic metadata, saves it to DB,