Initial commit (code only without large binaries)

EdgeCommon/pkg/dnsconfigs/ns_answer_config.go

@@ -0,0 +1,60 @@
+// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved. Official site: https://goedge.cn .
+//go:build plus
+
+package dnsconfigs
+
+import "github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs/shared"
+
+type NSAnswerMode = string
+
+const (
+	NSAnswerModeRandom     NSAnswerMode = "random"
+	NSAnswerModeRoundRobin NSAnswerMode = "roundRobin"
+)
+
+const NSAnswerDefaultSize = 5
+
+type NSAnswerConfig struct {
+	Mode    NSAnswerMode `yaml:"mode" json:"mode"`       // 记录回复模式
+	MaxSize int16        `yaml:"maxSize" json:"maxSize"` // 记录回复最大数量
+}
+
+func (this *NSAnswerConfig) IsSame(config2 *NSAnswerConfig) bool {
+	if config2 == nil {
+		return false
+	}
+
+	return this.Mode == config2.Mode &&
+		this.MaxSize == config2.MaxSize
+}
+
+func DefaultNSAnswerConfig() *NSAnswerConfig {
+	return &NSAnswerConfig{
+		Mode:    NSAnswerModeRandom,
+		MaxSize: NSAnswerDefaultSize,
+	}
+}
+
+func FindAllNSAnswerModes() []*shared.Definition {
+	return []*shared.Definition{
+		{
+			Name:        "随机",
+			Code:        NSAnswerModeRandom,
+			Description: "有多个查询结果时，随机选取若干结果返回。",
+		},
+		{
+			Name:        "轮询",
+			Code:        NSAnswerModeRoundRobin,
+			Description: "有多个查询结果时，按顺序每次返回其中一个结果；在此模式下，记录权重将不会生效。",
+		},
+	}
+}
+
+func IsValidNSAnswerMode(mode string) bool {
+	for _, m := range FindAllNSAnswerModes() {
+		if m.Code == mode {
+			return true
+		}
+	}
+	return false
+}