Function initTopicNewGrp

server/init_topic.go:502–624

Create a new group topic

(t *Topic, sreg *ClientComMessage, isChan bool)

// Create a new group topic
func initTopicNewGrp(t *Topic, sreg *ClientComMessage, isChan bool) error {
	timestamp := types.TimeNow()
	pktsub := sreg.Sub

	t.cat = types.TopicCatGrp
	t.isChan = isChan

	// Generic topics have parameters stored in the topic object
	t.owner = types.ParseUserId(sreg.AsUser)
	authLevel := auth.Level(sreg.AuthLvl)

	t.accessAuth = getDefaultAccess(t.cat, true, isChan)
	t.accessAnon = getDefaultAccess(t.cat, false, isChan)

	// Owner/creator gets full access to the topic. Owner may change the default modeWant through 'set'.
	userData := perUserData{
		modeGiven: types.ModeCFull,
		modeWant:  types.ModeCFull,
	}

	if pktsub.Set != nil {
		// User sent initialization parameters
		if pktsub.Set.Desc != nil {
			if pktsub.Set.Desc.Trusted != nil && authLevel != auth.LevelRoot {
				logs.Err.Println("hub: attempt to assign Trusted by non-ROOT", t.name)
				return types.ErrPermissionDenied
			}

			if !isNullValue(pktsub.Set.Desc.Public) {
				t.public = pktsub.Set.Desc.Public
			}
			if !isNullValue(pktsub.Set.Desc.Trusted) {
				t.trusted = pktsub.Set.Desc.Trusted
			}
			if !isNullValue(pktsub.Set.Desc.Private) {
				userData.private = pktsub.Set.Desc.Private
			}

			// set default access
			if pktsub.Set.Desc.DefaultAcs != nil {
				if authMode, anonMode, err := parseTopicAccess(pktsub.Set.Desc.DefaultAcs,
					t.accessAuth, t.accessAnon); err != nil {

					// Invalid access for one or both. Make it explicitly None
					if authMode.IsInvalid() {
						t.accessAuth = types.ModeNone
					} else {
						t.accessAuth = authMode
					}
					if anonMode.IsInvalid() {
						t.accessAnon = types.ModeNone
					} else {
						t.accessAnon = anonMode
					}
					logs.Err.Println("hub: invalid access mode for topic '" + t.name + "': '" + err.Error() + "'")
				} else if authMode.IsOwner() || anonMode.IsOwner() {
					logs.Err.Println("hub: OWNER default access in topic", t.name)
					t.accessAuth, t.accessAnon = authMode & ^types.ModeOwner, anonMode & ^types.ModeOwner