- echo "<input type=\"hidden\" name=\"_focus\" value=\"".get_post('_focus')."\">\n";
- echo "<input type=\"hidden\" name=\"_modified\" value=\"".get_post('_modified', 0)."\">\n";
- echo "</form>\n";
+ hidden('_focus');
+ hidden('_modified', get_post('_modified', 0));
+ hidden('_token', $_SESSION['csrf_token']);
+
+ echo implode('', $hidden_fields)."</form>\n";
+ $Ajax->activate('_token');
+}
+
+function check_csrf_token()
+{
+ if ($_SESSION['csrf_token'] != @$_POST['_token'])
+ {
+ display_error(_("Request from outside of this page is forbidden."));
+ error_log(_("CSRF attack detected from: ").@$_SERVER['HTTP_HOST'].' ('.@$_SERVER['HTTP_REFERER'].')');
+ return false;
+ }
+ return true;