Report errors thrown by the WOPI servers

changelog/unreleased/app-errors.md

@@ -0,0 +1,3 @@
+Enhancement: propagate back errors reported by the WOPI server on open
+
+https://github.com/cs3org/reva/pull/2103

internal/grpc/services/appprovider/appprovider.go

@@ -145,9 +145,8 @@ func getProvider(c *config) (app.Provider, error) {
 func (s *service) OpenInApp(ctx context.Context, req *providerpb.OpenInAppRequest) (*providerpb.OpenInAppResponse, error) {
 	appURL, err := s.provider.GetAppURL(ctx, req.ResourceInfo, req.ViewMode, req.AccessToken)
 	if err != nil {
-		err := errors.Wrap(err, "appprovider: error calling GetAppURL")
 		res := &providerpb.OpenInAppResponse{
-			Status: status.NewInternal(ctx, err, "error getting app URL"),
+			Status: status.NewInternal(ctx, errors.Wrap(err, "appprovider: error calling GetAppURL"), err.Error()),
 		}
 		return res, nil
 	}

internal/http/services/appprovider/appprovider.go

@@ -274,12 +274,13 @@ func (s *svc) handleOpen(w http.ResponseWriter, r *http.Request) {
 	}
 	openRes, err := client.OpenInApp(ctx, &openReq)
 	if err != nil {
-		ocmd.WriteError(w, r, ocmd.APIErrorServerError, "error opening resource", err)
+		log.Error().Err(err).Msg("error calling OpenInApp")
+		ocmd.WriteError(w, r, ocmd.APIErrorServerError, err.Error(), err)
 		return
 	}
 	if openRes.Status.Code != rpc.Code_CODE_OK {
 		ocmd.WriteError(w, r, ocmd.APIErrorServerError, "error opening resource information",
-			status.NewErrorFromCode(openRes.Status.Code, "appprovider"))
+			status.NewErrorFromCode(openRes.Status.Code, openRes.Status.Message))
 		return
 	}
 

pkg/app/provider/wopi/wopi.go

@@ -167,15 +167,16 @@ func (p *wopiProvider) GetAppURL(ctx context.Context, resource *provider.Resourc
 	}
 	defer openRes.Body.Close()
 
-	if openRes.StatusCode != http.StatusOK {
-		return nil, errtypes.InternalError("wopi: unexpected status from WOPI server: " + openRes.Status)
-	}
-
 	body, err := ioutil.ReadAll(openRes.Body)
 	if err != nil {
 		return nil, err
 	}
 
+	if openRes.StatusCode != http.StatusOK {
+		log.Warn().Msg(fmt.Sprintf("wopi: WOPI server returned HTTP %s, error was: %s", openRes.Status, body))
+		return nil, errtypes.InternalError(body)
+	}
+
 	var result map[string]interface{}
 	err = json.Unmarshal(body, &result)
 	if err != nil {