func watch() {
redis := myredis.DefaultClient()
for {
result, err := redis.BLPop(time.Duration(0), EventQueue).Result()
if err != nil || len(result) != 2 || result[1] != EventQueue {
//something wrong and watch again!
continue
}
hole <- time.Now().UnixNano()
}
}
func (f *RateLimitFilter) Allow(phone string, template t.Name) bool {
strategy, existed := f.Strategies[template]
if !existed {
return true
}
expiration := int64(strategy.Duration * time.Minute / time.Second)
if !util.IsProduction() {
//ignore actual setting in non-production environment
expiration = int64(5 * time.Minute / time.Second)
}
redisClient := myredis.DefaultClient()
res, err := redisClient.Eval(Check, []string{"cnt_" + phone + "_" + string(template)}, []string{strconv.FormatInt(expiration, 10)}).Result()
if err != nil {
//FIXME should allow or discard when check failed?
log.Error.Printf("occur error when check allowed: %v\n", err)
return false
}
return res.(int64) <= int64(strategy.Count)
}