"github.com/gorilla/mux"
"log"
"net/http"
+ "strings"
+ "time"
)
+// LoggingResponseWriter has anonymous fields ResponseWriter and ResponseBody
type LoggingResponseWriter struct {
- Status int
- Length int
- http.ResponseWriter
+ Status int
+ Length int
+ http.ResponseWriter
+ ResponseBody string
}
+// WriteHeader writes header to ResponseWriter
func (loggingWriter *LoggingResponseWriter) WriteHeader(code int) {
- loggingWriter.Status = code
- loggingWriter.ResponseWriter.WriteHeader(code)
+ loggingWriter.Status = code
+ loggingWriter.ResponseWriter.WriteHeader(code)
}
-func (loggingWriter *LoggingResponseWriter) Write(data []byte) (int, error){
- loggingWriter.Length = len(data)
- return loggingWriter.ResponseWriter.Write(data)
+func (loggingWriter *LoggingResponseWriter) Write(data []byte) (int, error) {
+ loggingWriter.Length += len(data)
+ if loggingWriter.Status >= 400 {
+ loggingWriter.ResponseBody += string(data)
+ }
+ return loggingWriter.ResponseWriter.Write(data)
}
+// LoggingRESTRouter is used to add logging capabilities to mux.Router
type LoggingRESTRouter struct {
- router *mux.Router
+ router *mux.Router
}
-func MakeLoggingRESTRouter() (*LoggingRESTRouter) {
- router := MakeRESTRouter()
- return (&LoggingRESTRouter{router})
+// MakeLoggingRESTRouter initializes LoggingRESTRouter
+func MakeLoggingRESTRouter() *LoggingRESTRouter {
+ router := MakeRESTRouter()
+ return (&LoggingRESTRouter{router})
}
func (loggingRouter *LoggingRESTRouter) ServeHTTP(resp http.ResponseWriter, req *http.Request) {
- loggingWriter := LoggingResponseWriter{200, 0, resp}
- loggingRouter.router.ServeHTTP(&loggingWriter, req)
- if loggingWriter.Status == 200 {
- log.Printf("[%s] %s %s %d %d", req.RemoteAddr, req.Method, req.URL.Path[1:], loggingWriter.Status, loggingWriter.Length)
- } else {
- log.Printf("[%s] %s %s %d", req.RemoteAddr, req.Method, req.URL.Path[1:], loggingWriter.Status)
- }
+ t0 := time.Now()
+ loggingWriter := LoggingResponseWriter{http.StatusOK, 0, resp, ""}
+ loggingRouter.router.ServeHTTP(&loggingWriter, req)
+ statusText := http.StatusText(loggingWriter.Status)
+ if loggingWriter.Status >= 400 {
+ statusText = strings.Replace(loggingWriter.ResponseBody, "\n", "", -1)
+ }
+ log.Printf("[%s] %s %s %.6fs %d %d \"%s\"", req.RemoteAddr, req.Method, req.URL.Path[1:], time.Since(t0).Seconds(), loggingWriter.Status, loggingWriter.Length, statusText)
+
}