some changes

plugins/admin.go

@@ -10,6 +10,7 @@ import (
 func RegisterAdmin(b *laniakea.Bot) {
 	p := laniakea.NewPlugin("Admin")
 	p.Command(uploadPhoto, "uploadPhoto")
+	p.Command(emojiId, "emojiId")
 	p.Command(test, "test")
 
 	p.Middleware(AdminMiddleware())
@@ -31,6 +32,17 @@ func AdminMiddleware() *laniakea.PluginMiddleware {
 func test(ctx *laniakea.MsgContext, _ *laniakea.DatabaseContext) {
 	ctx.Answer("Ok")
 }
+func emojiId(ctx *laniakea.MsgContext, _ *laniakea.DatabaseContext) {
+	var id string
+	for _, e := range ctx.Msg.Entities {
+		if e.Type != laniakea.MessageEntityCustomEmoji {
+			continue
+		}
+		id = e.CustomEmojiID
+		break
+	}
+	ctx.Answer(id)
+}
 func uploadPhoto(ctx *laniakea.MsgContext, _ *laniakea.DatabaseContext) {
 	ctx.SendAction(laniakea.ChatActionUploadPhoto)
 	photoId := ctx.Msg.Photo.Last().FileID
@@ -40,6 +52,7 @@ func uploadPhoto(ctx *laniakea.MsgContext, _ *laniakea.DatabaseContext) {
 		return
 	}
 	u := laniakea.NewUploader(ctx.Api)
+	defer u.Close()
 	content, err := ctx.Bot.GetFileByLink(f.FilePath)
 	if err != nil {
 		ctx.Error(err)