traefik/middlewares/logger.go
2015-09-12 15:20:56 +02:00

41 lines
No EOL
800 B
Go

/*
Copyright
*/
package middlewares
import (
"log"
"net/http"
"os"
"github.com/gorilla/handlers"
)
// Logger is a middleware handler that logs the request as it goes in and the response as it goes out.
type Logger struct {
file *os.File
}
// NewLogger returns a new Logger instance
func NewLogger(file string) *Logger {
if (len(file) > 0 ) {
fi, err := os.OpenFile(file, os.O_RDWR | os.O_CREATE | os.O_APPEND, 0666)
if err != nil {
log.Fatal("Error opening file", err)
}
return &Logger{fi}
}else {
return &Logger{nil}
}
}
func (l *Logger) ServeHTTP(rw http.ResponseWriter, r *http.Request, next http.HandlerFunc) {
if (l.file == nil) {
next(rw, r)
}else {
handlers.CombinedLoggingHandler(l.file, next).ServeHTTP(rw, r)
}
}
func (l *Logger) Close() {
l.file.Close()
}