From bfa48a5c943e4251ef4c99cc11ab55af274aa969 Mon Sep 17 00:00:00 2001
From: Lawrence G <lawrence.gadban@solo.io>
Date: Fri, 3 Nov 2023 11:16:29 -0500
Subject: [PATCH] fix empty backedRef with filters (#107)

---
 .../gateway_http_route_translator.go          | 27 ++++++++++++-------
 projects/gateway2/xds/xds_syncer.go           |  6 ++---
 2 files changed, 20 insertions(+), 13 deletions(-)

diff --git a/projects/gateway2/translator/httproute/gateway_http_route_translator.go b/projects/gateway2/translator/httproute/gateway_http_route_translator.go
index 4a0b0664a3e..e834d0ac5dd 100644
--- a/projects/gateway2/translator/httproute/gateway_http_route_translator.go
+++ b/projects/gateway2/translator/httproute/gateway_http_route_translator.go
@@ -3,6 +3,7 @@ package httproute
 import (
 	"context"
 	"errors"
+	"net/http"
 
 	"github.com/golang/protobuf/ptypes/wrappers"
 	"github.com/solo-io/gloo/projects/gateway2/query"
@@ -60,13 +61,15 @@ func translateGatewayHTTPRouteRule(
 			Action:   nil,
 			Options:  &v1.RouteOptions{},
 		}
-		setAction(
-			queries,
-			gwroute,
-			rule.BackendRefs,
-			outputRoute,
-			reporter,
-		)
+		if len(rule.BackendRefs) > 0 {
+			setRouteAction(
+				queries,
+				gwroute,
+				rule.BackendRefs,
+				outputRoute,
+				reporter,
+			)
+		}
 		if err := applyFilters(
 			ctx,
 			plugins,
@@ -78,8 +81,12 @@ func translateGatewayHTTPRouteRule(
 			// return nil
 		}
 		if outputRoute.Action == nil {
-			// TODO: report error
-			// return nil
+			// TODO: maybe? report error
+			outputRoute.Action = &v1.Route_DirectResponseAction{
+				DirectResponseAction: &v1.DirectResponseAction{
+					Status: http.StatusInternalServerError,
+				},
+			}
 		}
 		routes = append(routes, outputRoute)
 	}
@@ -166,7 +173,7 @@ func parsePath(path *gwv1.HTTPPathMatch) (gwv1.PathMatchType, string) {
 	return pathType, pathValue
 }
 
-func setAction(
+func setRouteAction(
 	queries query.GatewayQueries,
 	gwroute *gwv1.HTTPRoute,
 	backendRefs []gwv1.HTTPBackendRef,
diff --git a/projects/gateway2/xds/xds_syncer.go b/projects/gateway2/xds/xds_syncer.go
index 814bd878fe8..6179ff8c529 100644
--- a/projects/gateway2/xds/xds_syncer.go
+++ b/projects/gateway2/xds/xds_syncer.go
@@ -266,9 +266,9 @@ func (s *XdsSyncer) syncEnvoy(ctx context.Context, snap *v1snap.ApiSnapshot) rep
 			reports.AddMessages(proxy, messages...)
 		}
 
-		if validateErr := reports.ValidateStrict(); validateErr != nil {
-			logger.Warnw("Proxy had invalid config", zap.Any("proxy", proxy.GetMetadata().Ref()), zap.Error(validateErr))
-		}
+		// if validateErr := reports.ValidateStrict(); validateErr != nil {
+		// 	logger.Warnw("Proxy had invalid config", zap.Any("proxy", proxy.GetMetadata().Ref()), zap.Error(validateErr))
+		// }
 
 		sanitizedSnapshot := s.sanitizer.SanitizeSnapshot(ctx, snap, xdsSnapshot, reports)
 		// if the snapshot is not consistent, make it so