106 lines
3.2 KiB
Go
106 lines
3.2 KiB
Go
package config
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import (
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"fmt"
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"strconv"
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"strings"
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"time"
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)
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// Duration 提供更灵活的反序列化能力，同时兼容纯秒整数与 Go Duration 字符串。
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type Duration time.Duration
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// UnmarshalText 使 Viper 可以识别诸如 "30s"、"5m" 或纯数字秒值等配置写法。
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func (d *Duration) UnmarshalText(text []byte) error {
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raw := strings.TrimSpace(string(text))
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if raw == "" {
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*d = Duration(0)
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return nil
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}
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if seconds, err := time.ParseDuration(raw); err == nil {
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*d = Duration(seconds)
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return nil
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}
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if intVal, err := parseInt(raw); err == nil {
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*d = Duration(time.Duration(intVal) * time.Second)
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return nil
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}
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return fmt.Errorf("invalid duration value: %s", raw)
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}
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// DurationValue 返回真实的 time.Duration，便于调用方计算。
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func (d Duration) DurationValue() time.Duration {
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return time.Duration(d)
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}
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// parseInt 支持十进制或 0x 前缀的十六进制字符串解析。
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func parseInt(value string) (int64, error) {
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if strings.HasPrefix(value, "0x") || strings.HasPrefix(value, "0X") {
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return strconv.ParseInt(value, 0, 64)
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}
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return strconv.ParseInt(value, 10, 64)
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}
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// GlobalConfig 描述全局运行时行为，所有 Hub 共享同一份参数。
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type GlobalConfig struct {
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ListenPort int `mapstructure:"ListenPort"`
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LogLevel string `mapstructure:"LogLevel"`
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LogFilePath string `mapstructure:"LogFilePath"`
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LogMaxSize int `mapstructure:"LogMaxSize"`
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LogMaxBackups int `mapstructure:"LogMaxBackups"`
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LogCompress bool `mapstructure:"LogCompress"`
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StoragePath string `mapstructure:"StoragePath"`
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CacheTTL Duration `mapstructure:"CacheTTL"`
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MaxMemoryCache int64 `mapstructure:"MaxMemoryCacheSize"`
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MaxRetries int `mapstructure:"MaxRetries"`
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InitialBackoff Duration `mapstructure:"InitialBackoff"`
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UpstreamTimeout Duration `mapstructure:"UpstreamTimeout"`
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}
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// HubConfig 决定单个代理实例如何与下游/上游交互。
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type HubConfig struct {
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Name string `mapstructure:"Name"`
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Domain string `mapstructure:"Domain"`
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Upstream string `mapstructure:"Upstream"`
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Proxy string `mapstructure:"Proxy"`
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Type string `mapstructure:"Type"`
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Username string `mapstructure:"Username"`
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Password string `mapstructure:"Password"`
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CacheTTL Duration `mapstructure:"CacheTTL"`
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EnableHeadCheck bool `mapstructure:"EnableHeadCheck"`
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}
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// Config 是 TOML 文件映射的整体结构。
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type Config struct {
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Global GlobalConfig `mapstructure:",squash"`
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Hubs []HubConfig `mapstructure:"Hub"`
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}
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// HasCredentials 表示当前 Hub 是否配置了完整的上游凭证。
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func (h HubConfig) HasCredentials() bool {
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return h.Username != "" && h.Password != ""
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}
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// AuthMode 输出 `credentialed` 或 `anonymous`，供日志字段使用。
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func (h HubConfig) AuthMode() string {
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if h.HasCredentials() {
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return "credentialed"
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}
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return "anonymous"
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}
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// CredentialModes 返回所有 Hub 的鉴权模式摘要，例如 secure:credentialed。
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func CredentialModes(hubs []HubConfig) []string {
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if len(hubs) == 0 {
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return nil
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}
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result := make([]string, len(hubs))
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for i, hub := range hubs {
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result[i] = fmt.Sprintf("%s:%s", hub.Name, hub.AuthMode())
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}
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return result
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}
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