mirror of https://github.com/1Panel-dev/1Panel
72 lines
1.7 KiB
Go
72 lines
1.7 KiB
Go
package ntp
|
|
|
|
import (
|
|
"encoding/binary"
|
|
"fmt"
|
|
"net"
|
|
"runtime"
|
|
"time"
|
|
|
|
"github.com/1Panel-dev/1Panel/backend/utils/cmd"
|
|
)
|
|
|
|
const ntpEpochOffset = 2208988800
|
|
|
|
type packet struct {
|
|
Settings uint8
|
|
Stratum uint8
|
|
Poll int8
|
|
Precision int8
|
|
RootDelay uint32
|
|
RootDispersion uint32
|
|
ReferenceID uint32
|
|
RefTimeSec uint32
|
|
RefTimeFrac uint32
|
|
OrigTimeSec uint32
|
|
OrigTimeFrac uint32
|
|
RxTimeSec uint32
|
|
RxTimeFrac uint32
|
|
TxTimeSec uint32
|
|
TxTimeFrac uint32
|
|
}
|
|
|
|
func GetRemoteTime() (time.Time, error) {
|
|
conn, err := net.Dial("udp", "pool.ntp.org:123")
|
|
if err != nil {
|
|
return time.Time{}, fmt.Errorf("failed to connect: %v", err)
|
|
}
|
|
defer conn.Close()
|
|
if err := conn.SetDeadline(time.Now().Add(15 * time.Second)); err != nil {
|
|
return time.Time{}, fmt.Errorf("failed to set deadline: %v", err)
|
|
}
|
|
|
|
req := &packet{Settings: 0x1B}
|
|
|
|
if err := binary.Write(conn, binary.BigEndian, req); err != nil {
|
|
return time.Time{}, fmt.Errorf("failed to set request: %v", err)
|
|
}
|
|
|
|
rsp := &packet{}
|
|
if err := binary.Read(conn, binary.BigEndian, rsp); err != nil {
|
|
return time.Time{}, fmt.Errorf("failed to read server response: %v", err)
|
|
}
|
|
|
|
secs := float64(rsp.TxTimeSec) - ntpEpochOffset
|
|
nanos := (int64(rsp.TxTimeFrac) * 1e9) >> 32
|
|
|
|
showtime := time.Unix(int64(secs), nanos)
|
|
|
|
return showtime, nil
|
|
}
|
|
|
|
func UpdateSystemDate(dateTime string) error {
|
|
system := runtime.GOOS
|
|
if system == "linux" {
|
|
if _, err := cmd.Execf(`date -s "` + dateTime + `"`); err != nil {
|
|
return fmt.Errorf("update system date failed, err: %v", err)
|
|
}
|
|
return nil
|
|
}
|
|
return fmt.Errorf("the current system architecture %v does not support synchronization", system)
|
|
}
|