go-xmpp/stream_logger.go

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package xmpp
import (
"io"
"os"
)
// Mediated Read / Write on socket
2018-09-26 14:25:04 +00:00
// Used if logFile from Config is not nil
type streamLogger struct {
socket io.ReadWriter // Actual connection
logFile *os.File
}
func newStreamLogger(conn io.ReadWriter, logFile *os.File) io.ReadWriter {
if logFile == nil {
return conn
} else {
return &streamLogger{conn, logFile}
}
}
func (sp *streamLogger) Read(p []byte) (n int, err error) {
n, err = sp.socket.Read(p)
if n > 0 {
sp.logFile.Write([]byte("RECV:\n")) // Prefix
if n, err := sp.logFile.Write(p[:n]); err != nil {
return n, err
}
sp.logFile.Write([]byte("\n\n")) // Separator
}
return
}
func (sp *streamLogger) Write(p []byte) (n int, err error) {
sp.logFile.Write([]byte("SEND:\n")) // Prefix
for _, w := range []io.Writer{sp.socket, sp.logFile} {
n, err = w.Write(p)
if err != nil {
return
}
if n != len(p) {
err = io.ErrShortWrite
return
}
}
sp.logFile.Write([]byte("\n\n")) // Separator
return len(p), nil
}
/*
TODO: Make RECV, SEND prefixes +
*/