// authorizationMiddleware perform authorization on the request.
func (s *Server) authorizationMiddleware(handler httputils.APIFunc) httputils.APIFunc {
return func(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
// FIXME: fill when authN gets in
// User and UserAuthNMethod are taken from AuthN plugins
// Currently tracked in https://github.com/docker/docker/pull/13994
user := ""
userAuthNMethod := ""
authCtx := authorization.NewCtx(s.authZPlugins, user, userAuthNMethod, r.Method, r.RequestURI)
if err := authCtx.AuthZRequest(w, r); err != nil {
logrus.Errorf("AuthZRequest for %s %s returned error: %s", r.Method, r.RequestURI, err)
return err
}
rw := authorization.NewResponseModifier(w)
if err := handler(ctx, rw, r, vars); err != nil {
logrus.Errorf("Handler for %s %s returned error: %s", r.Method, r.RequestURI, err)
return err
}
if err := authCtx.AuthZResponse(rw, r); err != nil {
logrus.Errorf("AuthZResponse for %s %s returned error: %s", r.Method, r.RequestURI, err)
return err
}
return nil
}
}
// NewAuthorizationMiddleware creates a new Authorization middleware.
func NewAuthorizationMiddleware(plugins []authorization.Plugin) Middleware {
return func(handler httputils.APIFunc) httputils.APIFunc {
return func(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
user := ""
userAuthNMethod := ""
// Default authorization using existing TLS connection credentials
// FIXME: Non trivial authorization mechanisms (such as advanced certificate validations, kerberos support
// and ldap) will be extracted using AuthN feature, which is tracked under:
// https://github.com/docker/docker/pull/20883
if r.TLS != nil && len(r.TLS.PeerCertificates) > 0 {
user = r.TLS.PeerCertificates[0].Subject.CommonName
userAuthNMethod = "TLS"
}
authCtx := authorization.NewCtx(plugins, user, userAuthNMethod, r.Method, r.RequestURI)
if err := authCtx.AuthZRequest(w, r); err != nil {
logrus.Errorf("AuthZRequest for %s %s returned error: %s", r.Method, r.RequestURI, err)
return err
}
rw := authorization.NewResponseModifier(w)
if err := handler(ctx, rw, r, vars); err != nil {
logrus.Errorf("Handler for %s %s returned error: %s", r.Method, r.RequestURI, err)
return err
}
if err := authCtx.AuthZResponse(rw, r); err != nil {
logrus.Errorf("AuthZResponse for %s %s returned error: %s", r.Method, r.RequestURI, err)
return err
}
return nil
}
}
}
