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|
package xmpp
import (
"encoding/xml"
"errors"
"io"
"log"
"os"
)
type encoderDecoder struct {
session *session
ct *xml.Encoder // client transport encoder
cl *xml.Encoder // client log encoder
st *xml.Decoder // server transport decoder
sl *xml.Encoder // server log encoder
terminator chan bool
}
func newEncoderDecoder(s *session) encoderDecoder {
ed := encoderDecoder{}
ed.session = s
ed.ct = xml.NewEncoder(s.transport)
ed.ct.Indent("", " ")
ed.cl = xml.NewEncoder(os.Stdout)
ed.cl.Indent("C: ", " ")
ed.st = xml.NewDecoder(s.transport)
ed.sl = xml.NewEncoder(os.Stdout)
ed.sl.Indent("S: ", " ")
return ed
}
func (ed *encoderDecoder) encodeToken(t xml.Token) error {
var err error
defer func() {
if err != nil {
log.Println(err)
}
}()
err = ed.ct.EncodeToken(t)
if err != nil {
return err
}
err = ed.ct.Flush()
if err != nil {
return err
}
err = ed.cl.EncodeToken(t)
if err != nil {
return err
}
err = ed.cl.Flush()
if err != nil {
return err
}
return nil
}
func (ed *encoderDecoder) run() {
for {
select {
case <-ed.terminator:
return
default:
t, err := ed.st.Token()
if t != nil && err == nil {
err = ed.sl.EncodeToken(t)
if err != nil {
log.Println("Could not encode to server stream log")
}
err = ed.sl.Flush()
if err != nil {
log.Println("Could not flush server stream log")
}
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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