[#260] Use namespace as domain when resolve bucket

Signed-off-by: Denis Kirillov <d.kirillov@yadro.com>

api/middleware/reqinfo.go

@@ -37,6 +37,7 @@ type (
 		ObjectName   string   // Object name
 		TraceID      string   // Trace ID
 		URL          *url.URL // Request url
+		Namespace    string
 		tags         []KeyVal // Any additional info not accommodated by above fields
 	}
 
@@ -186,7 +187,11 @@ func GetReqLog(ctx context.Context) *zap.Logger {
 	return nil
 }
 
-func Request(log *zap.Logger) Func {
+type RequestSettings interface {
+	NamespaceHeader() string
+}
+
+func Request(log *zap.Logger, settings RequestSettings) Func {
 	return func(h http.Handler) http.Handler {
 		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 			// generate random UUIDv4
@@ -200,6 +205,7 @@ func Request(log *zap.Logger) Func {
 			// set request info into context
 			// bucket name and object will be set in reqInfo later (limitation of go-chi)
 			reqInfo := NewReqInfo(w, r, ObjectRequest{})
+			reqInfo.Namespace = r.Header.Get(settings.NamespaceHeader())
 			r = r.WithContext(SetReqInfo(r.Context(), reqInfo))
 
 			// set request id into gRPC meta header