Fixing #2859 by adding a createResponseInternal to allow fallback processing of index attribute in WebServerInterceptor.

Author: Mehmet Can Cömert

core/src/main/java/com/predic8/membrane/core/interceptor/server/WebServerInterceptor.java

@@ -126,7 +126,7 @@ public Outcome handleRequest(Exchange exc) {
 
         try {
             exc.setTimeReqSent(currentTimeMillis());
-            exc.setResponse(createResponse(router.getResolverMap(), combine(router.getBaseLocation(), docBase, uri)));
+            exc.setResponse(createResponseInternal(router.getResolverMap(), combine(router.getBaseLocation(), docBase, uri)));
             exc.setReceived();
             exc.setTimeResReceived(currentTimeMillis());
             return RETURN;
@@ -151,7 +151,7 @@ public Outcome handleRequest(Exchange exc) {
     private boolean tryToReceiveResource(Exchange exc, String uri) {
         for (String i : index) {
             try {
-                exc.setResponse(createResponse(router.getResolverMap(), combine(router.getBaseLocation(), docBase, uri + i)));
+                exc.setResponse(createResponseInternal(router.getResolverMap(), combine(router.getBaseLocation(), docBase, uri + i)));
                 exc.setReceived();
                 exc.setTimeResReceived(currentTimeMillis());
                 return true;
@@ -217,10 +217,7 @@ private boolean escapesPath(String uri) {
 
     public Response createResponse(ResolverMap rr, String resPath) {
         try {
-            return ok()
-                    .header(createHeaders(getContentType(resPath)))
-                    .body(rr.resolve(resPath), true)
-                    .build();
+            return createResponseInternal(rr, resPath);
         } catch (Exception e) {
             return internal(router.isProduction(),getDisplayName())
                     .title("Could not resolve file")
@@ -230,6 +227,13 @@ public Response createResponse(ResolverMap rr, String resPath) {
         }
     }
 
+    private Response createResponseInternal(ResolverMap rr, String resPath) throws ResourceRetrievalException {
+        return ok()
+                .header(createHeaders(getContentType(resPath)))
+                .body(rr.resolve(resPath), true)
+                .build();
+    }
+
     // @TODO Move to Util
     private static String getContentType(String uri) {
         if (uri.endsWith(".css"))