added: antispam mechanism

each html form has a hidden form_id and counter_id
counter_id on the client side is generated through javascript code
on the server the form_id and counter_id is stored in the session
after sending the html form the server checks the form_id and counter_id




git-svn-id: svn://ttmath.org/publicrep/winix/trunk@1116 e52654a7-88a9-db11-a3e9-0013d4bc506e

winixd/core/session.h

@@ -5,7 +5,7 @@
  */
 
 /* 
- * Copyright (c) 2008-2014, Tomasz Sowa
+ * Copyright (c) 2008-2018, Tomasz Sowa
  * All rights reserved.
  * 
  * Redistribution and use in source and binary forms, with or without
@@ -38,6 +38,7 @@
 #include <vector>
 #include <string>
 #include <ctime>
+#include <map>
 #include "item.h"
 #include "error.h"
 #include "user.h"
@@ -55,6 +56,7 @@ namespace Winix
 
 struct Session
 {
+
 	Session();
 	Session(const Session & ses);
 	Session & operator=(const Session & ses);
@@ -99,13 +101,6 @@ struct Session
 	bool remember_me;
 
 
-	// rebus - set by rebus_question(Info & i) from templates
-	Rebus::Item * rebus_item;
-	bool rebus_checked;
-
-
-	int spam_score;
-
 	// if true then this session will be removed by SessionManager
 	// without checking the time expiration
 	bool remove_me;
@@ -127,6 +122,17 @@ struct Session
 	// (it can be null)
 	IPBan * ip_ban;
 
+
+
+
+	// rebus - set by rebus_question(Info & i) from templates
+	Rebus::Item * rebus_item;
+	bool rebus_checked;
+	int spam_score;
+	std::map<long, long> antispan;
+
+
+
 };