traefik/middlewares/recovery/recovery.go

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2018-11-14 09:18:03 +00:00
package recovery
import (
"context"
"net/http"
"github.com/containous/traefik/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)
}
}