package recovery import ( "context" "net/http" "github.com/containous/traefik/v2/pkg/middlewares" "github.com/sirupsen/logrus" ) const ( typeName = "Recovery" ) type recovery struct { next http.Handler name string } // New creates recovery middleware. func New(ctx context.Context, next http.Handler, name string) (http.Handler, error) { middlewares.GetLogger(ctx, name, typeName).Debug("Creating middleware") return &recovery{ next: next, name: name, }, nil } func (re *recovery) ServeHTTP(rw http.ResponseWriter, req *http.Request) { defer recoverFunc(middlewares.GetLogger(req.Context(), re.name, typeName), rw) re.next.ServeHTTP(rw, req) } func recoverFunc(logger logrus.FieldLogger, rw http.ResponseWriter) { if err := recover(); err != nil { logger.Errorf("Recovered from panic in http handler: %+v", err) http.Error(rw, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError) } }