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package xmpp
import (
"encoding/xml"
"errors"
"io"
"log"
)
type encoderDecoder struct {
session *session
tx *xml.Encoder
rx *xml.Decoder
terminator chan bool
}
func newEncoderDecoder(s *session) encoderDecoder {
ed := encoderDecoder{}
ed.session = s
lw := logger{"[TX] "}
w := io.MultiWriter(s.transport, lw)
ed.tx = xml.NewEncoder(w)
ed.tx.Indent("", "")
lr := logger{"[RX] "}
r := io.TeeReader(s.transport, lr)
ed.rx = xml.NewDecoder(r)
return ed
}
func (ed *encoderDecoder) encodeToken(t xml.Token) error {
var err error
defer func() {
if err != nil {
log.Println(err)
}
}()
err = ed.tx.EncodeToken(t)
if err != nil {
return err
}
err = ed.tx.Flush()
if err != nil {
return err
}
return nil
}
func (ed *encoderDecoder) run() {
for {
select {
case <-ed.terminator:
return
default:
t, err := ed.rx.Token()
if t != nil && err == nil {
switch t.(type) {
case xml.ProcInst:
case xml.Directive:
case xml.Comment:
default:
c := xml.CopyToken(t)
ed.session.rx <- c
}
}
if err != nil {
if errors.Is(err, io.EOF) {
return
}
log.Println(err) // FIXME terminate session on error
return
}
}
}
}
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