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config.go
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config.go
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package conf
import (
_ "embed"
"github.com/fsnotify/fsnotify"
"github.com/rs/zerolog"
"github.com/rs/zerolog/log"
"github.com/spf13/viper"
"os"
"time"
)
//go:embed config-sample.toml
var configSample []byte
var DDNS struct {
Interval time.Duration
IfaceOnly []string
IfaceSkip []string
HandleShakeMax time.Duration
}
var StartOnBoot struct {
Enabled bool
IfaceOnly []string
IfaceSkip []string
}
var EnhancedDNS struct {
DirectResolver struct {
Enabled bool
ROAFinder string
}
}
var Log struct {
Level zerolog.Level
}
func Init(file string) {
if _, err := os.Stat(file); err != nil {
if !os.IsNotExist(err) {
log.Fatal().Err(err).Msgf("get stat of %s failed", file)
}
log.Info().Msgf("config not existed, creating at %s", file)
created, err := os.Create(file)
if err != nil {
log.Fatal().Err(err).Msgf("create config at %s failed", file)
}
if _, err := created.Write(configSample); err != nil {
log.Fatal().Err(err).Msgf("write config at %s failed", file)
}
}
viper.SetConfigFile(file)
err := viper.ReadInConfig()
viper.SetDefault("ddns.interval", 60)
viper.SetDefault("ddns.handshake_max", 150)
update()
if err != nil {
log.Fatal().Err(err).Msgf("read config from %s failed", file)
}
viper.OnConfigChange(func(e fsnotify.Event) {
update()
})
viper.WatchConfig()
}
func update() {
DDNS.Interval = time.Duration(viper.GetInt("ddns.interval")) * time.Second
DDNS.HandleShakeMax = time.Duration(viper.GetInt("ddns.handshake_max")) * time.Second
DDNS.IfaceOnly = viper.GetStringSlice("ddns.only_ifaces")
DDNS.IfaceSkip = viper.GetStringSlice("ddns.skip_ifaces")
StartOnBoot.Enabled = viper.GetBool("start_on_boot.enabled")
StartOnBoot.IfaceOnly = viper.GetStringSlice("start_on_boot.only_ifaces")
StartOnBoot.IfaceSkip = viper.GetStringSlice("start_on_boot.skip_ifaces")
EnhancedDNS.DirectResolver.Enabled = viper.GetBool("enhanced_dns.direct_resolver.enabled")
EnhancedDNS.DirectResolver.ROAFinder = viper.GetString("enhanced_dns.direct_resolver.roa_finder")
if level, err := zerolog.ParseLevel(viper.GetString("log.level")); err == nil {
Log.Level = level
zerolog.SetGlobalLevel(level)
}
}