51 lines
1 KiB
Go
51 lines
1 KiB
Go
package crypto
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import (
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"errors"
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"time"
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)
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// UpdateTime updates cached time.
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func UpdateTime(newTime int64) {
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if newTime > pgp.latestServerTime {
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pgp.latestServerTime = newTime
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pgp.latestClientTime = time.Now()
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}
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}
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// GetUnixTime gets latest cached time.
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func GetUnixTime() int64 {
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return getNow().Unix()
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}
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// GetTime gets latest cached time.
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func GetTime() time.Time {
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return getNow()
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}
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// ----- INTERNAL FUNCTIONS -----
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// getNow returns current time.
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func getNow() time.Time {
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extrapolate, err := getDiff()
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if err != nil {
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return time.Now()
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}
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return time.Unix(pgp.latestServerTime+extrapolate, 0)
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}
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func getDiff() (int64, error) {
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if pgp.latestServerTime > 0 && !pgp.latestClientTime.IsZero() {
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// Since is monotonic, it uses a monotonic clock in this case instead of the wall clock
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return int64(time.Since(pgp.latestClientTime).Seconds()), nil
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}
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return 0, errors.New("gopenpgp: latest server time not available")
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}
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// getTimeGenerator Returns a time generator function.
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func getTimeGenerator() func() time.Time {
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return getNow
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}
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