* added: class HTMLFilter

files: htmlfilter.h htmlfilter.cpp
         this is an html filter used to make the html output looking better
         this is a very lightweight filter
         (without using any dynamic memory - some memory is allocated only at the beginning - in ctors)
         this filter has O(n) complexity over the whole html string
* added: antyspamming method
         if the POST request is sent too fast after the GET
         it is treated as a spam
         only for no logged users and only in 'emacs' and 'createthread' functions
       


git-svn-id: svn://ttmath.org/publicrep/cmslu/trunk@534 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/session.h

@@ -36,6 +36,9 @@ struct Session
 	time_t last_time;
 	tm tm_last_time;
 
+	// when there was a last get request
+	// (used to calculate spam)
+	time_t last_time_get;
 	
 	// 0 - means that nobody is logged	
 	User * puser;
@@ -55,16 +58,20 @@ struct Session
 
 	// rebus - set by rebus_question(Info & i) from templates
 	Rebus::Item * rebus_item;
+	bool rebus_checked;
 
 	std::string dir_old;
 
+
+	int spam_score;
+
 	// -------------------
 
 	Session();
 	void Clear();
 	bool operator==(const Session & s) const;
 	bool operator<(const Session & s) const;
-	bool DecTimer(int & timer);
+	void DecTimer(int & timer);
 	void CheckTimers();
 	void IncrementTimersIfExist();
 };