func (ce *CtrlEngine) upkeepFetchconf(
msgDB *msgdb.MsgDB,
homedir string,
show bool,
outfp, statfp io.Writer,
) error {
netDomain, pubkeyStr, configURL := def.ConfigParams()
log.Infof("fetch config for '%s'", netDomain)
fmt.Fprintf(statfp, "fetch config for '%s'\n", netDomain)
publicKey, err := hex.DecodeString(pubkeyStr)
if err != nil {
log.Error(err)
}
ce.config.PublicKey = publicKey
ce.config.URLList = "10," + configURL
ce.config.Timeout = 0 // use default timeout
if err := ce.config.Update(); err != nil {
return log.Error(err)
}
jsn, err := json.Marshal(ce.config)
if err != nil {
return log.Error(err)
}
if err := msgDB.AddValue(netDomain, string(jsn)); err != nil {
return err
}
err = msgDB.AddValue("time."+netDomain, strconv.FormatInt(times.Now(), 10))
if err != nil {
return err
}
// apply new configuration
if err := def.InitMute(&ce.config); err != nil {
return err
}
// format configuration nicely
jsn, err = json.MarshalIndent(ce.config, "", " ")
if err != nil {
return log.Error(err)
}
// write new configuration file
if err := writeConfigFile(homedir, netDomain, jsn); err != nil {
return err
}
// show new configuration
if show {
fmt.Fprintf(outfp, string(jsn)+"\n")
}
return nil
}
func (ce *CtrlEngine) getConfig(homedir string, offline bool) error {
// read default config
netDomain, _, _ := def.ConfigParams()
jsn, err := ce.msgDB.GetValue(netDomain)
if err != nil {
return err
}
if jsn != "" {
if err := json.Unmarshal([]byte(jsn), &ce.config); err != nil {
return err
}
// apply old configuration
err := def.InitMute(&ce.config)
if err != nil {
// init failed -> update config (which will try init again)
fmt.Fprintf(ce.fileTable.StatusFP,
"initialization failed, try to update config\n")
if offline {
return log.Error("ctrlengine: cannot fetch config in " +
"--offline mode, run without")
}
err := ce.upkeepFetchconf(ce.msgDB, homedir, false, nil,
ce.fileTable.StatusFP)
if err != nil {
return err
}
} else {
// fetch new configuration, if last fetch is older than 24h
timestr, err := ce.msgDB.GetValue("time." + netDomain)
if err != nil {
return err
}
if timestr != "" {
t, err := strconv.ParseInt(timestr, 10, 64)
if err != nil {
return log.Error(err)
}
last := time.Now().Sub(time.Unix(t, 0))
if last > def.FetchconfMinDuration {
if offline {
if last > def.FetchconfMaxDuration {
return log.Error("ctrlengine: configuration is " +
"outdated, please run without --offline")
}
log.Warn("ctrlengine: cannot fetch outdated config " +
"in --offline mode")
fmt.Fprintf(ce.fileTable.StatusFP,
"ctrlengine: cannot fetch outdated config in "+
"--offline mode\n")
} else {
// update config
err := ce.upkeepFetchconf(ce.msgDB, homedir, false, nil,
ce.fileTable.StatusFP)
if err != nil {
return err
}
}
}
}
}
} else {
// no config found, fetch it
if offline {
return log.Error("ctrlengine: cannot fetch config in --offline mode")
}
fmt.Fprintf(ce.fileTable.StatusFP, "no system config found\n")
err := ce.upkeepFetchconf(ce.msgDB, homedir, false, nil,
ce.fileTable.StatusFP)
if err != nil {
return err
}
}
return nil
}