dns config

app/dns/json/config.go

@@ -0,0 +1,35 @@
+package json
+
+import (
+	"strings"
+
+	serialjson "github.com/v2ray/v2ray-core/common/serial/json"
+)
+
+type TagList map[string]bool
+
+func NewTagList(tags []string) TagList {
+	list := TagList(make(map[string]bool))
+	for _, tag := range tags {
+		list[strings.TrimSpace(tag)] = true
+	}
+	return list
+}
+
+func (this *TagList) UnmarshalJSON(data []byte) error {
+	tags, err := serialjson.UnmarshalStringList(data)
+	if err != nil {
+		return err
+	}
+	*this = NewTagList(tags)
+	return nil
+}
+
+type CacheConfig struct {
+	TrustedTags TagList `json:"trustedTags"`
+}
+
+func (this *CacheConfig) IsTrustedSource(tag string) bool {
+	_, found := this.TrustedTags[tag]
+	return found
+}