113 lines
3.0 KiB
Go
113 lines
3.0 KiB
Go
package main
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import (
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"flag"
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"fmt"
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"os"
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"strconv"
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"github.com/BurntSushi/toml"
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"github.com/caarlos0/env"
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)
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var (
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settings Settings
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)
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var LogLevelMap = map[string]int{
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"DEBUG": LevelDebug,
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"INFO": LevelInfo,
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"NOTICE": LevelNotice,
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"WARN": LevelWarn,
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"ERROR": LevelError,
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}
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type Settings struct {
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Version string `toml:"version"`
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Debug bool `toml:"debug"`
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Server DNSServerSettings `toml:"server"`
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ResolvConfig ResolvSettings `toml:"resolv"`
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Redis RedisSettings `toml:"redis"`
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Memcache MemcacheSettings `toml:"memcache"`
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Log LogSettings `toml:"log"`
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Cache CacheSettings `toml:"cache"`
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Hosts HostsSettings `toml:"hosts"`
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}
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type ResolvSettings struct {
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Timeout int `toml:"timeout" env:"RESOLV_TIMEOUT"`
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Interval int `toml:"interval" env:"RESOLV_INTERVAL"`
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SetEDNS0 bool `toml:"setedns0" env:"RESOLV_EDNS0"`
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ServerListFile string `toml:"server-list-file" env:"SERVER_LIST_FILE"`
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ResolvFile string `toml:"resolv-file" env:"RESOLV_FILE"`
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DOHServer string `toml:"dns-over-https" env:"DNS_HTTPS_SERVER"`
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}
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type DNSServerSettings struct {
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Host string `toml:"host" env:"SERVER_BIND"`
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Port int `toml:"port" env:"SERVER_PORT"`
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}
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type RedisSettings struct {
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Host string `toml:"host" env:"REDIS_HOST"`
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Port int `toml:"port" env:"REDIS_PORT"`
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DB int `toml:"db" env:"REDIS_DB"`
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Password string `toml:"password" env:"REDIS_PASSWORD"`
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}
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type MemcacheSettings struct {
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Servers []string `toml:"servers" env:"MEMCACHE_SERVERS"`
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}
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func (s RedisSettings) Addr() string {
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return s.Host + ":" + strconv.Itoa(s.Port)
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}
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type LogSettings struct {
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Stdout bool `toml:"stdout" env:"LOG_STDOUT"`
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File string `toml:"file" env:"LOG_FILE"`
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Level string `toml:"level" env:"LOG_LEVEL"`
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}
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func (ls LogSettings) LogLevel() int {
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l, ok := LogLevelMap[ls.Level]
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if !ok {
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panic("Config error: invalid log level: " + ls.Level)
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}
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return l
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}
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type CacheSettings struct {
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Backend string `toml:"backend" env:"CACHE_BACKEND"`
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Expire int `toml:"expire" env:"CACHE_EXPIRE"`
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Maxcount int `toml:"maxcount" env:"CACHE_MAX_COUNT"`
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}
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type HostsSettings struct {
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Enable bool `toml:"enable" env:"HOSTS_ENABLE"`
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HostsFile string `toml:"host-file" env:"HOSTS_FILE"`
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RedisEnable bool `toml:"redis-enable" env:"REDIS_HOSTS_ENABLE"`
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RedisKey string `toml:"redis-key" env:"REDIS_HOSTS_KEY"`
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TTL uint32 `toml:"ttl" env:"HOSTS_TTL"`
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RefreshInterval uint32 `toml:"refresh-interval" env:"HOSTS_REFRESH_INTERVAL"`
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}
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func init() {
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var configFile string
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flag.StringVar(&configFile, "c", "/etc/godns.conf", "Look for godns toml-formatting config file in this directory")
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flag.Parse()
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if _, err := toml.DecodeFile(configFile, &settings); err != nil {
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fmt.Printf("%s is not a valid toml config file\n", configFile)
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fmt.Println(err)
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os.Exit(1)
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}
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env.Parse(&settings.ResolvConfig)
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env.Parse(&settings.Redis)
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env.Parse(&settings.Memcache)
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env.Parse(&settings.Log)
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env.Parse(&settings.Cache)
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env.Parse(&settings.Hosts)
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} |