added: IP ban mechanism (not finished yet -- we need a winix function to remove a ban)

now after some incorrent login attempts your IP can be banned or blocked
       (see new config variables)


git-svn-id: svn://ttmath.org/publicrep/winix/trunk@902 e52654a7-88a9-db11-a3e9-0013d4bc506e

core/session.h

@@ -20,6 +20,7 @@
 #include "rebus.h"
 #include "textstream.h"
 #include "date/date.h"
+#include "ipban.h"
 
 
 
@@ -50,7 +51,7 @@ struct Session
 	PT::Date last_date;
 
 	// when there was a last get request
-	// (used to calculate spam)
+	// (used to calculate spam or invalid login attempts etc.)
 	time_t last_time_get;
 	
 
@@ -84,6 +85,11 @@ struct Session
 	// used by some javascript wysiwyg editors (ckeditor, tinymce)
 	std::vector<std::wstring> last_css;
 
+	// pointer to IPBan struct if exists for this IP
+	// many sessions can pointer to the same IPBan struct
+	// (it can be null)
+	IPBan * ip_ban;
+
 };