implement base structure for output filters

Author: Fabian Schneider

anti_ddos_worker.cpp

@@ -48,6 +48,11 @@ class AntiDDoSWorker{
 //			LoadConfig();
 			ConnectRedisServer();
 		}
+	
+		static int PostContentHook(ap_filter_t* f, apr_bucket_brigade* bb) {
+			// todo
+			return DECLINED;
+		}
 
 		static int PostRequestHook(request_rec *r){
     		// ignore whitelist

mod_antiddos.c

@@ -9,6 +9,7 @@ static void module_register_hooks(apr_pool_t *p)
 {
     ap_hook_handler(AntiDDoSWorker::PreRequestHook, NULL, NULL, APR_HOOK_FIRST);
 	ap_hook_log_transaction(AntiDDoSWorker::PostRequestHook , NULL, NULL, APR_HOOK_MIDDLE);
+	//ap_register_output_filter("antiddos_output_filter", AntiDDoSWorker::PostContentHook, NULL, AP_FTYPE_RESOURCE);
     ap_hook_post_config(AntiDDoSWorker::PostConfigHook, NULL, NULL, APR_HOOK_MIDDLE);
 }