package auth import ( "time" "github.com/google/uuid" "github.com/micro/go-micro/v3/auth" "github.com/micro/go-micro/v3/logger" ) // Verify the auth credentials and refresh the auth token periodically func Verify(a auth.Auth) error { // extract the account creds from options, these can be set by flags accID := a.Options().ID accSecret := a.Options().Secret // if no credentials were provided, self generate an account if len(accID) == 0 && len(accSecret) == 0 { opts := []auth.GenerateOption{ auth.WithType("service"), auth.WithScopes("service"), } acc, err := a.Generate(uuid.New().String(), opts...) if err != nil { return err } if logger.V(logger.DebugLevel, logger.DefaultLogger) { logger.Debugf("Auth [%v] Generated an auth account", a.String()) } accID = acc.ID accSecret = acc.Secret } // generate the first token token, err := a.Token( auth.WithCredentials(accID, accSecret), auth.WithExpiry(time.Minute*10), ) if err != nil { return err } // set the credentials and token in auth options a.Init( auth.ClientToken(token), auth.Credentials(accID, accSecret), ) // periodically check to see if the token needs refreshing go func() { timer := time.NewTicker(time.Second * 15) for { <-timer.C // don't refresh the token if it's not close to expiring tok := a.Options().Token if tok.Expiry.Unix() > time.Now().Add(time.Minute).Unix() { continue } // generate the first token tok, err := a.Token( auth.WithToken(tok.RefreshToken), auth.WithExpiry(time.Minute*10), ) if err != nil { logger.Warnf("[Auth] Error refreshing token: %v", err) continue } // set the token a.Init(auth.ClientToken(tok)) } }() return nil }