[优化] 添加 OpenRestyResolvers 配置支持自定义 DNS 解析器

openflare_server/controller/option.go

@@ -133,7 +133,13 @@ func validateOpenRestyOption(key string, value string) error {
 			return fmt.Errorf("%s 仅支持 epoll、kqueue、poll、select、rtsig、/dev/poll、eventport 或留空", key)
 		}
 	case "OpenRestyResolvers":
-		return fmt.Errorf("%s 已废弃，不再支持配置 resolver", key)
+		if trimmed == "" {
+			return nil
+		}
+		if !regexp.MustCompile(`^[a-zA-Z0-9.:\-\s]+$`).MatchString(trimmed) {
+			return fmt.Errorf("%s 包含非法字符，请填入有效的 IP 地址或域名，以空格分隔", key)
+		}
+		return nil
 	case "OpenRestyEventsMultiAcceptEnabled",
 		"OpenRestyWebsocketEnabled",
 		"OpenRestyProxyRequestBufferingEnabled",

openflare_server/controller/option_test.go

@@ -14,7 +14,8 @@ func TestValidateOpenRestyOption(t *testing.T) {
 		{name: "worker processes invalid", key: "OpenRestyWorkerProcesses", value: "0", wantErr: true},
 		{name: "events use empty", key: "OpenRestyEventsUse", value: ""},
 		{name: "events use invalid", key: "OpenRestyEventsUse", value: "io_uring", wantErr: true},
-		{name: "resolvers deprecated", key: "OpenRestyResolvers", value: "1.1.1.1", wantErr: true},
+		{name: "resolvers valid", key: "OpenRestyResolvers", value: "1.1.1.1 8.8.8.8"},
+		{name: "resolvers invalid", key: "OpenRestyResolvers", value: "1.1.1.1; 8.8.8.8", wantErr: true},
 		{name: "proxy buffers valid", key: "OpenRestyProxyBuffers", value: "16 16k"},
 		{name: "proxy buffers invalid", key: "OpenRestyProxyBuffers", value: "16x16k", wantErr: true},
 		{name: "cache max size valid", key: "OpenRestyCacheMaxSize", value: "2g"},