internal-endpoint-testing: handle x-choreo-test-session-id header cor…

…s config

Signed-off-by: Lahiru De Silva <[email protected]>

adapter/internal/oasparser/envoyconf/constants.go

@@ -157,3 +157,8 @@ const (
 	AccessLogTypeText = "text"
 	AccessLogTypeJSON = "json"
 )
+
+// Test session header name used for internal endpoint testing
+const (
+	choreoTestSessionHeaderName = "x-choreo-test-session-id"
+)

adapter/internal/oasparser/envoyconf/listener.go

@@ -46,7 +46,7 @@ func CreateRoutesConfigForRds(vHosts []*routev3.VirtualHost) *routev3.RouteConfi
 	routeConfiguration := routev3.RouteConfiguration{
 		Name:                   rdsConfigName,
 		VirtualHosts:           vHosts,
-		RequestHeadersToRemove: []string{clusterHeaderName, gatewayURLHeaderName},
+		RequestHeadersToRemove: []string{clusterHeaderName, gatewayURLHeaderName, choreoTestSessionHeaderName},
 	}
 	return &routeConfiguration
 }

adapter/internal/oasparser/envoyconf/routes_with_clusters.go

@@ -1455,6 +1455,9 @@ func getCorsPolicy(corsConfig *model.CorsConfig) *cors_filter_v3.CorsPolicy {
 		return nil
 	}
 
+	// Append `x-choreo-test-session-id` used for internal endpoint testing to AccessControlAllowHeaders.
+	corsConfig.AccessControlAllowHeaders = append(corsConfig.AccessControlAllowHeaders, choreoTestSessionHeaderName)
+
 	stringMatcherArray := []*envoy_type_matcherv3.StringMatcher{}
 	for _, origin := range corsConfig.AccessControlAllowOrigins {
 		regexMatcher := &envoy_type_matcherv3.StringMatcher{