#!/bin/bash

# 定义颜色
RED='\033[0;31m'
GREEN='\033[0;32m'
NC='\033[0m' # No Color

# 检测网络连接的函数
function network() {
    if ping -c 2 www.baidu.com &> /dev/null; then
        printf "[ ${GREEN}OK${NC} ]\n"
    else
        printf "[ ${RED}Failed${NC} ]\n"
    fi
}

# 检测SSH服务是否开启的函数
function ssh_service() {
    if systemctl status sshd &> /dev/null; then
        printf "[ ${GREEN}OK${NC} ]\n"
    else
        printf "[ ${RED}Failed${NC} ]\n"
    fi
}

# 检测防火墙是否开启的函数
function firewall() {
    if systemctl status firewalld &> /dev/null; then
        printf "[ ${GREEN}OK${NC} ]\n"
    else
        printf "[ ${RED}Failed${NC} ]\n"
    fi
}

# 检测SELinux状态的函数
function selinux() {
    se_status=$(getenforce)
    if [ "$se_status" = "Enforcing" ] || [ "$se_status" = "Permissive" ]; then
        printf "[ ${GREEN}OK${NC} ]\n"
    else
        printf "[ ${RED}Failed${NC} ]\n"
    fi
}

# 执行函数并直接使用其输出
clear
echo "===============================系统检测中=============================="
echo "======================================================================="
echo "当前时间:     [ $(date '+%F %X') ]"
echo "网络地址:     [ $(ip -4 a show dev ens33 | awk 'NR==2{print $2}') ]"
echo -n "网络连接:     "; network
echo -n "远程连接:     "; ssh_service
echo -n "防火墙:       "; firewall
echo -n "SELinux:      "; selinux
echo "======================================================================="