package barertc import ( "encoding/json" "net/http" "git.kirsle.net/apps/barertc/pkg/config" ) // Statistics (/api/statistics) returns info about the users currently logged onto the chat, // for your website to call via CORS. The URL to your site needs to be in the CORSHosts array // of your settings.toml. func (s *Server) Statistics() http.HandlerFunc { return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { // Handle the CORS header from your trusted domains. if origin := r.Header.Get("Origin"); origin != "" { var found bool for _, allowed := range config.Current.CORSHosts { if allowed == origin { found = true } } if found { w.Header().Set("Access-Control-Allow-Origin", origin) } } var result = struct { UserCount int Usernames []string }{ Usernames: []string{}, } // Count all users + collect unique usernames. var unique = map[string]struct{}{} for _, sub := range s.IterSubscribers() { if sub.authenticated && sub.ChatStatus != "hidden" { result.UserCount++ if _, ok := unique[sub.Username]; ok { continue } result.Usernames = append(result.Usernames, sub.Username) unique[sub.Username] = struct{}{} } } w.Header().Set("Content-Type", "application/json") enc := json.NewEncoder(w) enc.SetIndent("", " ") enc.Encode(result) }) }