func Example() {
h := func(w http.ResponseWriter, r *http.Request) {
lp := lpx.NewReader(bufio.NewReader(r.Body))
for lp.Next() {
if string(lp.Header().Name) == "router" {
decodeMsg(lp.Bytes())
}
}
}
http.HandleFunc("/drain", h)
_ = http.ListenAndServe(":8080", nil)
}
// Fix function to convert post data to length prefixed syslog frames
func fix(r io.Reader, remoteAddr string, logplexDrainToken string) ([]byte, error) {
var messageWriter bytes.Buffer
var messageLenWriter bytes.Buffer
lp := lpx.NewReader(bufio.NewReader(r))
for lp.Next() {
header := lp.Header()
// LEN SP PRI VERSION SP TIMESTAMP SP HOSTNAME SP APP-NAME SP PROCID SP MSGID SP STRUCTURED-DATA MSG
messageWriter.Write(header.PrivalVersion)
messageWriter.WriteString(" ")
messageWriter.Write(header.Time)
messageWriter.WriteString(" ")
if string(header.Hostname) == logplexDefaultHost && logplexDrainToken != "" {
messageWriter.WriteString(logplexDrainToken)
} else {
messageWriter.Write(header.Hostname)
}
messageWriter.WriteString(" ")
messageWriter.Write(header.Name)
messageWriter.WriteString(" ")
messageWriter.Write(header.Procid)
messageWriter.WriteString(" ")
messageWriter.Write(header.Msgid)
messageWriter.WriteString(" [origin ip=\"")
messageWriter.WriteString(remoteAddr)
messageWriter.WriteString("\"]")
b := lp.Bytes()
if len(b) >= 2 && bytes.Equal(b[0:2], nilVal) {
messageWriter.Write(b[1:])
} else if len(b) > 0 {
if b[0] != '[' {
messageWriter.WriteString(" ")
}
messageWriter.Write(b)
}
messageLenWriter.WriteString(strconv.Itoa(messageWriter.Len()))
messageLenWriter.WriteString(" ")
messageWriter.WriteTo(&messageLenWriter)
}
return messageLenWriter.Bytes(), lp.Err()
}