package controllers import ( "encoding/json" "io/ioutil" "net/http" "os" "path" "path/filepath" "strings" "time" "github.com/owncast/owncast/config" "github.com/owncast/owncast/models" log "github.com/sirupsen/logrus" ) var emojiCache = make([]models.CustomEmoji, 0) var emojiCacheTimestamp time.Time // getCustomEmojiList returns a list of custom emoji either from the cache or from the emoji directory. func getCustomEmojiList() []models.CustomEmoji { fullPath := filepath.Join(config.WebRoot, config.EmojiDir) emojiDirInfo, err := os.Stat(fullPath) if err != nil { log.Errorln(err) } if emojiDirInfo.ModTime() != emojiCacheTimestamp { log.Traceln("Emoji cache invalid") emojiCache = make([]models.CustomEmoji, 0) } if len(emojiCache) == 0 { files, err := ioutil.ReadDir(fullPath) if err != nil { log.Errorln(err) return emojiCache } for _, f := range files { name := strings.TrimSuffix(f.Name(), path.Ext(f.Name())) emojiPath := filepath.Join(config.EmojiDir, f.Name()) singleEmoji := models.CustomEmoji{Name: name, Emoji: emojiPath} emojiCache = append(emojiCache, singleEmoji) } emojiCacheTimestamp = emojiDirInfo.ModTime() } return emojiCache } // GetCustomEmoji returns a list of custom emoji via the API. func GetCustomEmoji(w http.ResponseWriter, r *http.Request) { emojiList := getCustomEmojiList() if err := json.NewEncoder(w).Encode(emojiList); err != nil { InternalErrorHandler(w, err) } }