func (api *channellingAPI) HandleSessions(session *channelling.Session, sessions *channelling.DataSessionsRequest) (*channelling.DataSessions, error) { switch sessions.Type { case "contact": if !api.config.WithModule("contacts") { return nil, channelling.NewDataError("contacts_not_enabled", "incoming contacts session request with contacts disabled") } userID, err := api.ContactManager.GetContactID(session, sessions.Token) if err != nil { return nil, err } return &channelling.DataSessions{ Type: "Sessions", Users: api.SessionManager.GetUserSessions(session, userID), Sessions: sessions, }, nil case "session": id, err := session.DecodeAttestation(sessions.Token) if err != nil { return nil, channelling.NewDataError("bad_attestation", err.Error()) } session, ok := api.Unicaster.GetSession(id) if !ok { return nil, channelling.NewDataError("no_such_session", "cannot retrieve session") } return &channelling.DataSessions{ Type: "Sessions", Users: []*channelling.DataSession{session.Data()}, Sessions: sessions, }, nil default: return nil, channelling.NewDataError("bad_request", "unknown sessions request type") } }