[#367] Add check of AccessBox attributes

Signed-off-by: Marina Biryukova <m.biryukova@yadro.com>

api/middleware/policy.go

@@ -444,6 +444,13 @@ func determineProperties(r *http.Request, decoder XMLDecoder, resolver BucketRes
 		res[k] = v
 	}
 
+	attrs, err := GetAccessBoxAttrs(r.Context())
+	if err == nil {
+		for _, attr := range attrs {
+			res[fmt.Sprintf(s3.PropertyKeyFormatAccessBoxAttr, attr.Key())] = attr.Value()
+		}
+	}
+
 	return res, nil
 }