fix: retry on alreadyReplaced error

acme/api/internal/sender/sender.go

@@ -142,6 +142,10 @@ func checkError(req *http.Request, resp *http.Response) error {
 			return &acme.NonceError{ProblemDetails: errorDetails}
 		}
 
+		if errorDetails.HTTPStatus == http.StatusConflict && errorDetails.Type == acme.AlreadyReplacedErr {
+			return &acme.AlreadyReplacedError{ProblemDetails: errorDetails}
+		}
+
 		return errorDetails
 	}
 	return nil

acme/api/order.go

@@ -69,7 +69,20 @@ func (o *OrderService) NewWithOptions(domains []string, opts *OrderOptions) (acm
 	var order acme.Order
 	resp, err := o.core.post(o.core.GetDirectory().NewOrderURL, orderReq, &order)
 	if err != nil {
-		return acme.ExtendedOrder{}, err
+		are := &acme.AlreadyReplacedError{}
+		if !errors.As(err, &are) {
+			return acme.ExtendedOrder{}, err
+		}
+
+		// If the Server rejects the request because the identified certificate has already been marked as replaced,
+		// it MUST return an HTTP 409 (Conflict) with a problem document of type "alreadyReplaced" (see Section 7.4).
+		// https://datatracker.ietf.org/doc/html/draft-ietf-acme-ari-08#section-5
+		orderReq.Replaces = ""
+
+		resp, err = o.core.post(o.core.GetDirectory().NewOrderURL, orderReq, &order)
+		if err != nil {
+			return acme.ExtendedOrder{}, err
+		}
 	}
 
 	return acme.ExtendedOrder{

acme/api/order_test.go

@@ -46,12 +46,14 @@ func TestOrderService_NewWithOptions(t *testing.T) {
 			Status:         acme.StatusValid,
 			Expires:        order.Expires,
 			Identifiers:    order.Identifiers,
+			Profile:        order.Profile,
 			NotBefore:      order.NotBefore,
 			NotAfter:       order.NotAfter,
 			Error:          order.Error,
 			Authorizations: order.Authorizations,
 			Finalize:       order.Finalize,
 			Certificate:    order.Certificate,
+			Replaces:       order.Replaces,
 		})
 		if err != nil {
 			http.Error(w, err.Error(), http.StatusInternalServerError)

acme/errors.go

@@ -6,8 +6,9 @@ import (
 
 // Errors types.
 const (
-	errNS       = "urn:ietf:params:acme:error:"
-	BadNonceErr = errNS + "badNonce"
+	errNS              = "urn:ietf:params:acme:error:"
+	BadNonceErr        = errNS + "badNonce"
+	AlreadyReplacedErr = errNS + "alreadyReplaced"
 )
 
 // ProblemDetails the problem details object.
@@ -56,3 +57,10 @@ type SubProblem struct {
 type NonceError struct {
 	*ProblemDetails
 }
+
+// AlreadyReplacedError represents the error which is returned
+// If the Server rejects the request because the identified certificate has already been marked as replaced.
+// - https://datatracker.ietf.org/doc/html/draft-ietf-acme-ari-08#section-5
+type AlreadyReplacedError struct {
+	*ProblemDetails
+}