puerta/internal/auth/duration.go

58 lines
1.0 KiB
Go

// SPDX-License-Identifier: Apache-2.0
// Copyright © 2022 Roberto Hidalgo <nidito@un.rob.mx>
package auth
import (
"fmt"
"strconv"
"time"
)
var DefaultTTL = TTL("30d")
type TTL string
func (ttl TTL) ToDuration() (res time.Duration, err error) {
if ttl == "" {
return
}
suffix := ttl[len(ttl)-1]
toParse := string(ttl)
if suffix == 'd' || suffix == 'w' || suffix == 'M' {
multiplier := 1
switch suffix {
case 'd':
multiplier = 24
case 'w':
multiplier = 24 * 7
case 'M':
multiplier = 24 * 7 * 30
default:
err = fmt.Errorf("unknown suffix for time duration %s", string(suffix))
return
}
toParse = toParse[0 : len(toParse)-1]
var days int
days, err = strconv.Atoi(toParse)
if err != nil {
return
}
toParse = fmt.Sprintf("%dh", days*multiplier)
}
res, err = time.ParseDuration(toParse)
return
}
func (ttl *TTL) FromNow() time.Time {
d, _ := ttl.ToDuration()
return time.Now().Add(d)
}
func (ttl *TTL) Seconds() int {
d, _ := ttl.ToDuration()
return int(d.Seconds())
}