42 lines
1.1 KiB
Go
42 lines
1.1 KiB
Go
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package main
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import (
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"errors"
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"regexp"
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"strconv"
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"time"
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log "github.com/sirupsen/logrus"
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)
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func Expiration(now time.Time, deadline string) (time.Time, error) {
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log.WithFields(log.Fields{"now": now, "deadline": deadline}).Debugf("starting")
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defer log.WithFields(log.Fields{"now": now, "deadline": deadline}).Debugf("done")
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if deadline == "forever" {
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return time.Unix(1<<63-1, 0), nil
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}
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reExpiration := regexp.MustCompile(`([0-9]+)([a-z]+)`)
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for _, v := range reExpiration.FindAllStringSubmatch(deadline, -1) {
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log.WithFields(log.Fields{"now": now, "deadline": deadline}).Debugf("duration[%d] : %v", len(v), v)
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count, _ := strconv.Atoi(v[1])
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switch v[2] {
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case "y":
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now = now.AddDate(count, 0, 0)
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case "m":
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now = now.AddDate(0, count, 0)
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case "d":
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now = now.AddDate(0, 0, count)
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case "h":
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now = now.Add(time.Duration(time.Duration(count) * time.Hour))
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default:
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err := errors.New("invalid duration")
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log.WithFields(log.Fields{"now": now, "deadline": deadline, "attr": v[2], "error": err}).Errorf("")
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return time.Now(), err
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}
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}
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return now, nil
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}
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