firewall_sp_set_firewall_group_mode_and_user.sql

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--
-- Create new variant of sp_set_firewall_group_mode_and_user
--

-- WARNING: If the .sql files are changed in a patch release, then it is
-- possible that the Firewall plugin, after a downgrade, will not work as intended.
-- Please try to avoid changes in patch releases.

DELIMITER $$

CREATE DEFINER='mysql.sys'@'localhost'
  PROCEDURE sp_set_firewall_group_mode_and_user(
    IN arg_group_name VARCHAR(288),
    IN arg_mode VARCHAR(12),
    IN arg_userhost VARCHAR(288))
  SQL SECURITY INVOKER
BEGIN
  DECLARE result VARCHAR(160);
  DECLARE prev_mode VARCHAR(12);
  DECLARE prev_user VARCHAR(288);
  DECLARE reset_done BOOLEAN DEFAULT False;
  DECLARE EXIT HANDLER FOR SQLEXCEPTION
    BEGIN
      IF (@prev_mode IS NOT NULL) THEN
        SELECT set_firewall_group_mode(arg_group_name, @prev_mode, IF(@prev_user IS NOT NULL, @prev_user, '')) INTO result;
      END IF;
      ROLLBACK;
      RESIGNAL;
    END;
  START TRANSACTION;
  SET @prev_mode = (SELECT mode FROM performance_schema.firewall_groups WHERE name = arg_group_name);
  SET @prev_user = (SELECT userhost FROM performance_schema.firewall_groups WHERE name = arg_group_name);
  IF arg_mode = "RECORDING" THEN
    SELECT read_firewall_group_allowlist(arg_group_name,FW.rule) FROM firewall_group_allowlist FW WHERE name = arg_group_name;
  END IF;
  SELECT set_firewall_group_mode(arg_group_name, arg_mode, arg_userhost) INTO result;
  IF arg_mode = "RESET" THEN
    DELETE FROM firewall_group_allowlist WHERE name = arg_group_name;
    SET arg_mode = "OFF";
    SET reset_done = True;
  END IF;
  IF result = "OK" THEN
    INSERT INTO firewall_groups VALUES (arg_group_name, arg_mode, arg_userhost) ON DUPLICATE KEY UPDATE mode=arg_mode, userhost=arg_userhost;
  ELSE
    SELECT result;
  END IF;
  IF arg_mode = "PROTECTING" OR arg_mode = "DETECTING" OR (arg_mode = "OFF" AND reset_done = False) THEN
    INSERT INTO firewall_group_allowlist(name, rule)
    (
      SELECT name, rule FROM performance_schema.firewall_group_allowlist WHERE name=arg_group_name
      EXCEPT
      SELECT name, rule FROM firewall_group_allowlist WHERE name = arg_group_name
    );
  END IF;
  COMMIT;
END$$

DELIMITER ;