fix captcha

captcha/captcha.go

@@ -7,6 +7,11 @@ import (
 
 	"github.com/mojocn/base64Captcha"
 	"github.com/redis/go-redis/v9"
+	"gitlab.wanzhuangkj.com/tush/xpkg/xerrors/xerror"
+)
+
+const (
+	NotFoundPlaceholder = "*"
 )
 
 type Captcha struct {
@@ -46,7 +51,10 @@ func (rs *RedisStore) Get(id string, clear bool) string {
 	key := rs.prefix + id
 	val, err := rs.client.Get(ctx, key).Result()
 	if err != nil {
-		panic(err)
+		if xerror.Is(err, redis.Nil) {
+			return ""
+		}
+		panic(xerror.New(err.Error()))
 	}
 	if clear {
 		go rs.client.Del(ctx, key)
@@ -55,6 +63,9 @@ func (rs *RedisStore) Get(id string, clear bool) string {
 	if len(parts) != 2 {
 		return ""
 	}
+	if parts[0] == NotFoundPlaceholder { // 这块逻辑应该用不到
+		return ""
+	}
 	return parts[0]
 }