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HTTP debug middleware should be behind ShouldDebug()

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This commit is contained in:
Jakob Borg 2015-11-21 09:39:40 +01:00
parent 945ddc2403
commit f7ad97918a
2 changed files with 20 additions and 14 deletions
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4
cmd/syncthing/debug.go
View File

@ -18,6 +18,10 @@ var (
httpl = logger.DefaultLogger.NewFacility("http", "REST API")
)
func shouldDebugHTTP() bool {
return l.ShouldDebug("http")
}
func init() {
l.SetDebug("main", strings.Contains(os.Getenv("STTRACE"), "main") || os.Getenv("STTRACE") == "all")
l.SetDebug("http", strings.Contains(os.Getenv("STTRACE"), "http") || os.Getenv("STTRACE") == "all")

30
cmd/syncthing/gui.go
View File

@ -298,23 +298,25 @@ func debugMiddleware(h http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
t0 := time.Now()
h.ServeHTTP(w, r)
ms := 1000 * time.Since(t0).Seconds()
// The variable `w` is most likely a *http.response, which we can't do
// much with since it's a non exported type. We can however peek into
// it with reflection to get at the status code and number of bytes
// written.
var status, written int64
if rw := reflect.Indirect(reflect.ValueOf(w)); rw.IsValid() && rw.Kind() == reflect.Struct {
if rf := rw.FieldByName("status"); rf.IsValid() && rf.Kind() == reflect.Int {
status = rf.Int()
}
if rf := rw.FieldByName("written"); rf.IsValid() && rf.Kind() == reflect.Int64 {
written = rf.Int()
if shouldDebugHTTP() {
ms := 1000 * time.Since(t0).Seconds()
// The variable `w` is most likely a *http.response, which we can't do
// much with since it's a non exported type. We can however peek into
// it with reflection to get at the status code and number of bytes
// written.
var status, written int64
if rw := reflect.Indirect(reflect.ValueOf(w)); rw.IsValid() && rw.Kind() == reflect.Struct {
if rf := rw.FieldByName("status"); rf.IsValid() && rf.Kind() == reflect.Int {
status = rf.Int()
}
if rf := rw.FieldByName("written"); rf.IsValid() && rf.Kind() == reflect.Int64 {
written = rf.Int()
}
}
l.Debugf("http: %s %q: status %d, %d bytes in %.02f ms", r.Method, r.URL.String(), status, written, ms)
}
l.Debugf("http: %s %q: status %d, %d bytes in %.02f ms", r.Method, r.URL.String(), status, written, ms)
})
}