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#!/usr/bin/python
# coding: utf-8
# -------------------------------------------------------------------
# 宝塔Linux面板
# -------------------------------------------------------------------
# Copyright (c) 2015-2099 宝塔软件(http://bt.cn) All rights reserved.
# -------------------------------------------------------------------
# Author: linxiao
# -------------------------------------------------------------------

# -------------------------------------------------------------------
# 数据库备份权限检测
# -------------------------------------------------------------------

import os, public, panelMysql

_title = '数据库备份权限检测'
_version = 1.0  # 版本
_ps = "检测MySQL root用户是否具备数据库备份权限"  # 描述
_level = 3  # 风险级别: 1.提示(低)  2.警告(中)  3.危险(高)
_date = '2020-09-19'  # 最后更新时间
_ignore = os.path.exists("data/warning/ignore/sw_database_priv.pl")
_tips = [
    "登录Mysql执行【SHOW GRANTS FOR root;】查看root权限情况",
    "【GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' WITH GRANT OPTION;】授予root用户所有权限/或是根据需求授予部分权限",
    "【FLUSH PRIVILEGES;】刷新MySQL用户权限,并再次查看root权限情况"
]

_help = ''
_remind = '此方案保障了root用户备份数据库的权限,确保数据库备份工作的进行。'


def check_run():
    """检测root用户是否具备数据库备份权限

        @author linxiao<2020-9-18>
        @return (bool, msg)
    """
    # mycnf_file = '/etc/my.cnf'
    # if not os.path.exists(mycnf_file):
    #     return True, '无风险'
    # mycnf = public.readFile(mycnf_file)
    # port_tmp = re.findall(r"port\s*=\s*(\d+)", mycnf)
    # if not port_tmp:
    #     return True, '无风险'
    # if not public.ExecShell("lsof -i :{}".format(port_tmp[0]))[0]:
    #     return True, '无风险'
    datadir = public.get_datadir()
    if not datadir:
        return True, '无风险'
    pid_file = "{}/{}.pid".format(datadir, public.get_hostname())
    if os.path.exists(pid_file):
        pid = int(public.readFile(pid_file))
        status = public.pid_exists(pid)
        if not status: return True, '无风险'
    else:
        return True, '无风险'
    base_backup_privs = ["Lock_tables_priv", "Select_priv"]
    select_sql = "Select {} FROM mysql.user WHERE user='root' and " \
                 "host=SUBSTRING_INDEX((select current_user()),'@', " \
                 "-1);".format(",".join(base_backup_privs))
    select_result = panelMysql.panelMysql().query(select_sql)
    if not select_result:
        return False, "root用户执行mysqldump备份的权限不足。"
    select_result = select_result[0]
    for priv in select_result:
        if priv.lower() != "y":
            return False, "root用户执行mysqldump备份的权限不足。"
    return True, '无风险'