func (v *vncKBPlayback) parseEvent(cmd string) (interface{}, error) {
var e Event
var res string
var err error
if e, err = vnc.ParseKeyEvent(cmd); err == nil {
return e, err
} else if e, err = vnc.ParsePointerEvent(cmd); err == nil {
return e, err
} else if res, err = ParseLoadFileEvent(cmd); err == nil {
return res, err
} else {
return nil, errors.New("invalid event specified")
}
}
func (v *vncKBPlayback) playFile() {
scanner := bufio.NewScanner(v.file)
for scanner.Scan() && v.err == nil {
s := strings.SplitN(scanner.Text(), ":", 2)
duration, err := time.ParseDuration(s[0] + "ns")
if err != nil {
log.Errorln(err)
continue
}
wait := time.After(duration)
select {
case <-wait:
case <-v.done:
return
}
if res, err := vnc.ParseKeyEvent(s[1]); err == nil {
v.err = res.Write(v.Conn)
} else if res, err := vnc.ParsePointerEvent(s[1]); err == nil {
v.err = res.Write(v.Conn)
} else if file, err := ParseLoadFileEvent(s[1]); err == nil {
if !filepath.IsAbs(file) {
// Our file is in the same directory as the parent
file = filepath.Join(filepath.Dir(v.file.Name()), file)
}
// Save the file we were working from
oldfile := v.file
// Load the new file
v.file, err = os.Open(file)
if err != nil {
log.Error("Couldn't load VNC playback file %v: %v", file, err)
v.err = err
} else {
r := &vncKBPlayback{v.vncClient}
// We will wait until this file has played fully.
r.playFile()
}
v.file = oldfile
} else {
log.Error("invalid vnc message: `%s`", s[1])
}
}
}
func (v *vncKBPlayback) Run() {
err := (&vnc.SetEncodings{
Encodings: []int32{vnc.CursorPseudoEncoding},
}).Write(v.Conn)
if err != nil {
v.err = fmt.Errorf("unable to set encodings: %v", err)
return
}
scanner := bufio.NewScanner(v.file)
for scanner.Scan() && v.err == nil {
s := strings.SplitN(scanner.Text(), ":", 2)
duration, err := time.ParseDuration(s[0] + "ns")
if err != nil {
log.Errorln(err)
continue
}
wait := time.After(duration)
select {
case <-wait:
case <-v.done:
return
}
if res, err := vnc.ParseKeyEvent(s[1]); err == nil {
v.err = res.Write(v.Conn)
} else if res, err := vnc.ParsePointerEvent(s[1]); err == nil {
v.err = res.Write(v.Conn)
} else {
log.Error("invalid vnc message: `%s`", s[1])
}
}
// Stop ourselves
go v.Stop()
// Block until we receive the done flag if we finished the playback
<-v.done
delete(vncKBPlaying, v.Rhost)
}