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time.go
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time.go
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package scp
import (
"fmt"
"os"
"strconv"
"time"
"code.cloudfoundry.org/diego-ssh/scp/atime"
)
type TimeMessage struct {
modificationTime time.Time
accessTime time.Time
}
func NewTimeMessage(fileInfo os.FileInfo) *TimeMessage {
accessTime, err := atime.AccessTime(fileInfo)
if err != nil {
accessTime = time.Unix(0, 0)
}
return &TimeMessage{
modificationTime: fileInfo.ModTime(),
accessTime: accessTime,
}
}
func (tm *TimeMessage) ModificationTime() time.Time {
return tm.modificationTime
}
func (tm *TimeMessage) AccessTime() time.Time {
return tm.accessTime
}
func (tm *TimeMessage) Send(session *Session) error {
_, err := fmt.Fprintf(session.stdout, "T%d 0 %d 0\n", tm.modificationTime.Unix(), tm.accessTime.Unix())
if err != nil {
return err
}
return session.awaitConfirmation()
}
func (tm *TimeMessage) Receive(session *Session) error {
messageType, err := session.readByte()
if err != nil {
return err
}
if messageType != byte('T') {
return fmt.Errorf("unexpected message type: %c", messageType)
}
modTimeString, err := session.readString(SPACE)
if err != nil {
return err
}
modTimeSeconds, err := strconv.ParseUint(modTimeString, 10, 64)
if err != nil {
return err
}
tm.modificationTime = time.Unix(int64(modTimeSeconds), 0)
_, err = session.readString(SPACE)
if err != nil {
return err
}
accessTimeString, err := session.readString(SPACE)
if err != nil {
return err
}
accessTimeSeconds, err := strconv.ParseUint(accessTimeString, 10, 64)
if err != nil {
return err
}
tm.accessTime = time.Unix(int64(accessTimeSeconds), 0)
_, err = session.readString(NEWLINE)
if err != nil {
return err
}
err = session.sendConfirmation()
if err != nil {
return err
}
return nil
}